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Farming And Chemical Warfare: A Day In The Life Of An Ant
http://feeds.sciencedaily.com/~r/sciencedaily/~3/v9-uvW67njI/081117082048.htm
One of the most important developments in human civilization was the practice of sustainable agriculture. But we were not the first; ants have been doing it for over 50 million years. Just as farming helped humans become a dominant species, it has also helped leaf-cutter ants become dominant herbivores and one of the most successful social insects in nature.
Sun, 30 Nov 08
Does Hormone Treatment Predispose Patients To Breast Cancer?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GNhiatw73pM/081121081059.htm
Breast cancer, the leading cause of death among women in France, is the most commonly occurring cancer in women. Sporadic breast cancer, which is non-hereditary, turns out to be the most widespread, representing 85 to 90% of all cases, but remains the least well-known. Researchers have just discovered the cause of 50% of sporadic breast cancers.
Sun, 30 Nov 08
Rabies Barrier To Save World's Rarest Wolf
http://feeds.sciencedaily.com/~r/sciencedaily/~3/P8UHeW0mfro/081119175533.htm
Conservationists are battling to save the world's rarest wolf from a rabies outbreak by creating a 'barrier' of vaccinated wolf packs.
Sun, 30 Nov 08
Portuguese Scientists Discover New Mechanism That Regulates Formation Of Blood Vessels
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IplE4uFPdQ8/081117153305.htm
Researchers have discovered a novel mechanism which regulates the process whereby new blood vessels are formed and wounds heal, including chronic wounds, such as those found in diabetic patients and those suffering from morbid obesity. These findings have implications for the development of new therapeutic approaches to healing damaged blood vessels and building new ones.
Sun, 30 Nov 08
How Binge Drinking May Drive Heart Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oonmifCDNpA/081126081403.htm
As the holidays arrive, a group of researchers has identified the precise mechanisms by which binge drinking contributes to clogs in arteries that lead to heart attack and stroke. The works adds to a growing body of evidence that drinking patterns matter as much, if not more, to risk for cardiovascular disease than the total amount consumed. Irregular, heavy drinking pattern clogs blood vessels.
Sun, 30 Nov 08
Common Cold Virus Came From Birds About 200 Years Ago, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mXmavj0k_QU/081120073115.htm
A virus that causes cold-like symptoms in humans originated in birds and may have crossed the species barrier around 200 years ago, according to an article in the Journal of General Virology. Scientists hope their findings will help us understand how potentially deadly viruses emerge in humans.
Sun, 30 Nov 08
Ultrasound Waves Aid In Rapid Treatment Of Deep Vein Thrombosis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/n_esGBHXf90/081123150253.htm
The use of ultrasound waves for deep vein thrombosis may help dissolve blood clots in less time than using clot-busting drugs alone, according to researchers.
Sun, 30 Nov 08
Climate Change Opens New Avenue For Spread Of Invasive Plants
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YiBmXx4zado/081119161125.htm
A team of researchers from the Netherlands and Florida has found that plants that range beyond their normal distribution because of warming climates may have advantages over native plants. Global warming-induced biological invasions may represent an additional threat to biodiversity.
Sun, 30 Nov 08
Exercise And Rest Reduce Cancer Risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jDytXTfpGUo/081117153154.htm
Exercise is good for more than just your waistline. A recent study suggests that regular physical activity can lower a woman's overall risk of cancer -- but only if she gets a good night's sleep. Otherwise, lack of sleep can undermine exercise's cancer prevention benefits.
Sun, 30 Nov 08
Sustainable Garden Roofs Developed As New Construction Material
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KSWj-9gMrx8/081121151914.htm
A Spanish research study has tested different combinations of supports and indigenous plants to determine which are the best for reducing energy consumption inside buildings. This type of roof is a “rurban,” sustainable architectural solution that will lead to a reduction in environmental and acoustic contamination levels in cities, and be visually pleasing.
Sun, 30 Nov 08
Science Professors Know Science, But Who Is Teaching Them How To Teach?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xYz9-ZxUspE/081127145125.htm
U.S. science and engineering students emerge from graduate school exquisitely trained to carry out research. Yet when it comes to the other major activity they'll engage in as professors -- teaching -- they're usually left to their own devices. That's now beginning to change.
Sun, 30 Nov 08
2008 Atlantic Hurricane Season Sets Records
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eIOK2VI3xAQ/081129124902.htm
The 2008 Atlantic Hurricane Season officially comes to a close on November 30, marking the end of a season that produced a record number of consecutive storms to strike the United States and ranks as one of the more active seasons in the 64 years since comprehensive records began. A total of 16 named storms formed this season. The storms included eight hurricanes, five of which were major hurricanes at Category 3 strength or higher.
Sun, 30 Nov 08
Fast Food A Potential Risk Factor For Alzheimer’s
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-RCdB7vAKSM/081128082937.htm
Mice that were fed a diet rich in fat, sugar and cholesterol for nine months developed a preliminary stage of the morbid irregularities that form in the brains of Alzheimer's patients. The study gives some indications of how this difficult to treat disease might one day be preventable.
Sun, 30 Nov 08
New Excavations Strengthen Identification Of Herod’s Grave At Herodium
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NRMeMZPh5Bo/081119084537.htm
Analysis of newly revealed items found at the site of the mausoleum of King Herod at Herodium (Herodion in Greek) have provided archaeological researchers with further assurances that this was indeed the site of the famed ruler’s 1st century B.C.E. grave. Herod was the Roman-appointed king of Judea from 37 to 4 B.C.E., who was renowned for his many monumental building projects, including the reconstruction of the Temple in Jerusalem, the palace at Masada, the harbor and city of Caesarea, as well as the palatial complex at Herodium, 15 kilometers south of Jerusalem.
Sun, 30 Nov 08
Three Esophageal, Stomach Cancer Subtypes Linked To Smoking; One Associated With Alcohol Use
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fjCZpxnKBC4/081117103649.htm
Researchers who have been following the health of more than 120,000 residents of the Netherlands for more than two decades have found that smoking is associated with two forms of esophageal cancer as well as a form of stomach cancer, and that drinking alcohol is strongly linked to one form of esophageal cancer.
Sun, 30 Nov 08
Model To Measure Soil Health In Bioenergy Era
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EH-OpUufoVI/081119120229.htm
The loss of soil organic matter due to poor land-management practice threatens farmlands, and while the use for crop residues as feedstock for biomass ethanol and bio-based products increases, these materials no longer contribute to the health of the soil. Scientist have now developed a method of measuring soil quality to assure an adequate amount of soil organic matter, called the CQESTR model.
Sun, 30 Nov 08
Specific DNA Variations Of The Serotonin Transporter Gene Can Influence Drinking Intensity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KEp1MrzBlzg/081120162841.htm
The brain's serotonergic system plays an important role in alcohol preference and consumption. New findings show that specific DNA sequence variations of the serotonin transporter gene can influence drinking intensity among alcohol-dependent individuals.
Sun, 30 Nov 08
New HIV Cases Could Be Reduced By 95% With Universal Voluntary Testing And Immediate Treatment, Mathematical Model Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/85zJPBQfLJ8/081129135520.htm
Universal and annual voluntary testing followed by immediate antiretroviral therapy treatment (irrespective of clinical stage or CD4 count) can reduce new HIV cases by 95% within 10 years, according to new findings based on a mathematical model developed by a group of HIV specialists in WHO.
Sun, 30 Nov 08
Is An Anchor Responsible For Mad Cow Disease (BSE) Infections?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6cOxRWo4eL0/081129174042.htm
Chemists are providing prion researchers with a new tool to elucidate the role played by specific anchor molecules. These complicated anchor compounds are suspected of promoting infections with BSE or Creutzfeldt-Jacob disease.
Sun, 30 Nov 08
Tracking Down Strange Seismic Waves
http://feeds.sciencedaily.com/~r/sciencedaily/~3/V4n6uwRFiFo/081129173952.htm
Seismic waves generated by earthquakes pass through the earth. Changes in their direction or velocity indicate variations in the materials through which they pass. Geophysicists have now been able to show in a model exactly what happens at zones where crustal plates subduct below one another.
Sun, 30 Nov 08
A Surgeon You Can Swallow
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rH84Q6dzSjo/081129173859.htm
In the future, tablet-shaped robots could perform some surgical operations without injuring the body. A new publication shows how such surgical bio-microrobots might function.
Sun, 30 Nov 08
Pesticides Are In For It Now
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wCTGBZGXFsY/081129173816.htm
Chemists have developed a method to detect pesticide residues in foodstuffs -- a method that may also be of interest for other areas and may enable quality checks on a running basis.
Sun, 30 Nov 08
YouTube Usage Decoded
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EvVN_t3DqBk/081129173718.htm
Why are certain videos on YouTube watched millions of times while 90 percent of the contributions find only the odd viewer? A new study reveals that increased attention in social systems like the YouTube community follows particular, recurrent patterns that can be represented using mathematical models.
Sun, 30 Nov 08
Humanity May Hold Key For Next Earth Evolution
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XaJq24jROmg/081129173302.htm
Human degradation of the environment has the potential to stall an ongoing process of planetary evolution, and even rewind the evolutionary clock to leave the planet habitable only by the bacteria that dominated billions of years of Earth's history, according to Harvard geochemist Charles Langmuir.
Sun, 30 Nov 08
Boll Weevil Feeding Habits Now Better Understood
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_j_6GOWIfJs/081129152632.htm
Boll weevils don't hibernate during winter in the subtropics but actually remain active, feeding on orange, grapefruit and other plants, according to a scientist studying this infamous cotton pest.
Sun, 30 Nov 08
Insecticides Or Genetically Modified Crops? Non-Target Insects Affected More By Insecticides Than By Crops Engineered To Make Insect-specific Toxins
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ab6bgEDdpOU/081129151957.htm
Non-target insects are probably affected more by conventional insecticides than by crops that contain genes from the soil bacterium Bacillus thuringiensis (Bt), according to a new article. Bt crops such as maize and cotton are genetically engineered to produce insect-specific toxins.
Sun, 30 Nov 08
Humans Prompted New Paths For Parasites
http://feeds.sciencedaily.com/~r/sciencedaily/~3/j_i-AkTYvCA/081129151143.htm
Scientists are tracking how the dissemination of the parasite Trichinella spiralis throughout Europe, North Africa and the Americas was facilitated by human travel and the transportation of animals.
Sun, 30 Nov 08
Cell Receptor Identified As Target For Anti-inflammatory Immune Response
http://feeds.sciencedaily.com/~r/sciencedaily/~3/B4FzlCY2RLk/081129124253.htm
Invading pathogens provoke a series of molecular heroics that, when successful, muster an army of antibodies to neutralize the threat. Like with any close-quarter combat, however, an aggressive immune response runs the risk of friendly fire accidents. For the last decade, immunologists have intensively studied mechanisms evolved by the immune system to avoid these accidents by shutting off the immune response once the invaders have been eliminated.
Sun, 30 Nov 08
Influence Of Climate Warming On The Increase In Tick-borne Diseases
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HPWeZJxAhKM/081129100146.htm
Rises in the ambient temperature modify the behavior of dog ticks and increase their affinity for humans. There is thus a risk that episodes of global warming may be associated with epidemics of tick-borne diseases.
Sat, 29 Nov 08
Virtual Ears And The Cocktail Party Effect
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DA9i06COlgk/081119175851.htm
New research has helped understanding of the so-called 'cocktail party effect' -- how our brains develop the ability to pinpoint and focus on particular sounds among a background of noise.
Sat, 29 Nov 08
Selenium May Slow March Of AIDS
http://feeds.sciencedaily.com/~r/sciencedaily/~3/G8-d58Sy91M/081128082835.htm
Increasing the production of naturally occurring proteins that contain selenium in human blood cells slows down multiplication of the AIDS virus, according to biochemists.
Sat, 29 Nov 08
Bird Population Estimates Are Flawed, New Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/C3mOVSvgTco/081121080819.htm
Most of what we know about bird populations stems from surveys conducted by professional biologists and amateur birdwatchers, but new research shows that the data from those surveys may be seriously flawed -- and proposes possible means to resolve the problem.
Sat, 29 Nov 08
Bad Cholesterol Inhibits The Breakdown Of Peripheral Fat
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dEr5OwD-Z18/081120073117.htm
The so called bad cholesterol (LDL) inhibits the breakdown of fat in cells of peripheral deposits, according to a new study. The discovery reveals a novel function of LDL as a regulator of fat turnover besides its well-established detrimental effects in promoting atherosclerosis.
Sat, 29 Nov 08
Highly Efficient Lithium Batteries Could Greatly Extend Battery Life Of Laptop Computers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LMe89IAWYDE/081120103802.htm
Scientists have developed a new material for anodes, which could clear a path for a new generation of rechargeable batteries. Their new material involves three-dimensional, highly porous silicon structures.
Sat, 29 Nov 08
Ban On Fast Food TV Advertising Would Reverse Childhood Obesity Trends, Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6l99ivUMXzs/081119120149.htm
A ban on fast-food advertisements in the United States could reduce the number of overweight children by as much as 18 percent, according to a new study. The study also reports that eliminating the tax deductibility associated with television advertising would result in a reduction of childhood obesity, though in smaller numbers.
Sat, 29 Nov 08
Panamanian Termite Goes Ballistic: Fastest Mandible Strike In The World
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jP3I7LpaU_8/081124165259.htm
A single hit on the head by the termite Termes panamensis (Snyder), which possesses the fastest mandible strike ever recorded, is sufficient to kill a would-be nest invader.
Sat, 29 Nov 08
New Screening Halves Number Of Children Born With Down Syndrome
http://feeds.sciencedaily.com/~r/sciencedaily/~3/F_TU-Np-ciY/081127204346.htm
A new national screening strategy in Denmark has halved the number of infants born with Down's syndrome and increased the number of infants diagnosed before birth by 30 percent, according to a new study.
Sat, 29 Nov 08
Spinning Into The Future Of Data Storage
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1HEI7KehzhY/081124102710.htm
Scientists have improved their understanding of the inner workings of our computers and MP3 players, thanks to an exciting new field of research called "organic spintronics."
Sat, 29 Nov 08
Study Documents What May Be First Cases Of Certain Tick-borne Disease In China
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EezZXH7fQfk/081118161239.htm
It appears that for the first time human granulocytic anaplasmosis, an emerging tick-borne infectious disease found in the US and Europe, has been identified in China and apparently was transmitted from person to person, according to a new study.
Sat, 29 Nov 08
Making Gases More Transportable: Methane Gas Converted To Powder Form
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4WjRyYYsMnc/081120073126.htm
Chemists have developed a way of converting methane gas into a powder form in order to make it more transportable.
Sat, 29 Nov 08
New National Survey Says Public Reveres Bison
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lMi3beoGXIU/081118131857.htm
Americans are woefully out of touch with the fact that the American bison, or buffalo, is in trouble as a wild, iconic species, but they do love them as an important symbol of their country -- and as an entree on the dinner table. These sentiments were found in a public survey by the Wildlife Conservation Society at a national conference on restoring bison populations in the North America.
Sat, 29 Nov 08
Solar Wind Rips Up Martian Atmosphere
http://feeds.sciencedaily.com/~r/sciencedaily/~3/V9IaDexV9Kk/081123142222.htm
Researchers have found new evidence that the atmosphere of Mars is being stripped away by solar wind. It's not a gently continuous erosion, but rather a ripping process in which chunks of Martian air detach themselves from the planet and tumble into deep space. This surprising mechanism could help solve a longstanding mystery about the Red Planet.
Sat, 29 Nov 08
Chandrayaan-1 Starts Observations Of The Moon
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vH1m2O5_86k/081124131241.htm
The Indian Space Research Organization's lunar orbiter Chandrayaan-1 released a probe that impacted close to the lunar south pole on Nov. 14. Following this, the instruments on the spacecraft are being switched on to get the science observations started.
Sat, 29 Nov 08
Risk Of Maternal And Newborn Complications May Be Lower After Bariatric Surgery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iUyq2emxz_8/081118161241.htm
A review of previously published studies suggests that rates of adverse outcomes for mothers or pregnant women and newborn babies, such as gestational diabetes and low birth weight, may be lower after bariatric surgery compared with pregnant women who are obese, according to a new study.
Sat, 29 Nov 08
Toward Healthier Bread And Other Whole Grain Foods
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jelEMGvEF_E/081119155941.htm
Bread, pasta, and other foods made from whole grains -- known to help protect against heart disease, cancer and diabetes -- may get even healthier in the future.
Sat, 29 Nov 08
Asthma Over-Diagnosed In One Third Of Canadian Adults, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FdrInRbG_cg/081117192754.htm
Asthma may be overdiagnosed in countries like Canada, suggests a longitudinal study of 540 obese and non-obese adults that found approximately one third of Canadians with physician-diagnosed asthma do not have asthma when objectively tested.
Sat, 29 Nov 08
'The Photon Force Is With Us': Harnessing Light To Drive Nanomachines
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5OaEEcyFULE/081126133305.htm
Science fiction writers have long envisioned sailing a spacecraft by the optical force of the sun's light. But, the forces of sunlight are too weak to fill even the oversized sails that have been tried. Now a team led by researchers at the Yale School of Engineering & Applied Science has shown that the force of light indeed can be harnessed to drive machines when the process is scaled to nano-proportions.
Sat, 29 Nov 08
Mouse Model Of Prion Disease Mimics Diverse Symptoms Of Human Disorder
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MpvrH0azNrM/081126133300.htm
A comprehensive mouse model of inherited prion disease exhibits cognitive, motor and neurophysiological deficits that bear a striking resemblance to the symptoms experienced by patients with the human version of "mad cow disease," Creutzfeldt-Jakob disease. The research, published in the journal Neuron, provides exciting insight into the mechanism of disease and may lead to the development of new therapeutic strategies for this devastating neurodegenerative disorder.
Sat, 29 Nov 08
Drink Brewed Tea To Avoid Tooth Erosion, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VU6RLkKMfYw/081125132514.htm
Researchers compared green and black tea to soda and orange juice in terms of their short- and long-term erosive effect on human teeth. The study found that the erosive effect of tea was similar to that of water, which has no erosive effect.
Sat, 29 Nov 08
Resistance to TB Vaccine May Be Uncommon, Protects Against Nine Strains in Mice
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8CcEsEnF7ps/081125161535.htm
A new study shows that the current tuberculosis vaccine induces protective immunity against nine strains of the bacteria in mice indicating that strain-specific resistance may be uncommon.
Sat, 29 Nov 08
Delving Into Mysterious Irregularity Of Earth's Magnetic Field: Observatory Being Built In Middle Of Atlantic Ocean
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3wbuIZp5nBQ/081125090348.htm
A new Danish observatory on a remote island in the middle of the Atlantic Ocean will provide researchers with new knowledge about the mysterious irregularity of the Earth’s magnetic field known as the South Atlantic Anomaly.
Sat, 29 Nov 08
Expressing Emotions In E-mail So As Not To Be Misinterpreted
http://feeds.sciencedaily.com/~r/sciencedaily/~3/luIzDNqW8Pg/081125161537.htm
How do people use emoticons, subject lines, and signatures to define how they want to be interpreted in email? The authors find that "a shift to email interaction requires a new set of interactional skills to be developed." Unlike face-to-face conversations, email interactions leave out tone of voice, body-language and context, which can lead to misunderstandings.
Sat, 29 Nov 08
Route To Obesity Passes Through Tongue
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XVFaFuy_lKw/081126133409.htm
Obesity gradually numbs the taste sensation of rats to sweet foods and drives them to consume larger and ever-sweeter meals, according to neuroscientists. New findings could uncover a critical link between taste and body weight, and reveal how flab hooks the brain on sugary food.
Sat, 29 Nov 08
Master Gene Plays Key Role In Blood Sugar Levels
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8w_XI91MiZ8/081127145132.htm
When mice that lack steroid receptor-2, a master regulator gene called a coactivator, fast for a day, their blood sugar levels plummet. If they go another day without food, they will die. The severity of the hypoglycemia was unexpected, according to an article in Science.
Sat, 29 Nov 08
Fast Molecular Rearrangements Hold Key To Plastic’s Toughness
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jlwXawFY_v8/081127145128.htm
Researchers report that subjecting a common plastic to physical stress - which causes the plastic to flow - also dramatically increases the motion of the material's constituent molecules, with molecular rearrangements occurring up to 1,000 times faster than without the stress.
Sat, 29 Nov 08
Estrogen Therapy Could Be Dangerous For Women With Existing Heart Risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gpLDjZck-3g/081125161533.htm
Hormone therapy could accentuate certain pre-existing heart disease risk factors and a heart health evaluation should become the norm when considering estrogen replacement, new research suggests.
Sat, 29 Nov 08
Key Link In How Plants Adapt To Climate Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ky7fNHLR0Y4/081125113112.htm
How many mouths does a plant need in order to survive? The answer changes depending on climate and some of the decisions are made long before a new leaf sprouts. Stanford researchers have found that the formation of microscopic pores called stomata is controlled by a specific signaling pathway that blocks activity of a single protein required for stomata development. Stomata are found on almost every terrestrial plant on Earth.
Sat, 29 Nov 08
Explanation For 'Face Blindness' Offered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FH5jg8psTQg/081125141604.htm
For the first time, scientists have been able to map the disruption in neural circuitry of people suffering from congenital prosopagnosia, sometimes known as face blindness, and have been able to offer a biological explanation for this intriguing disorder. Currently thought to affect roughly two percent of the population, congenital prosopagnosia manifests as the lifelong failure to recognize faces in the absence of obvious neurological damage, and in individuals with intact vision and intelligence.
Sat, 29 Nov 08
Biologists Find New Environmental Threat In North American Lakes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/G8ipnF35_20/081127145141.htm
A new and insidious environmental threat has been detected in North American lakes. Boreal forest lakes suffer from 'aquatic osteoporosis.'
Sat, 29 Nov 08
Experimental TB Drug Explodes Bacteria From The Inside Out
http://feeds.sciencedaily.com/~r/sciencedaily/~3/v9FXuofUOg8/081127145137.htm
Biochemists have discovered how an experimental drug unleashes its destructive force inside the bacteria that cause tuberculosis. The finding could help scientists develop ways to treat dormant TB infections, and suggests a strategy for drug development against other bacteria as well.
Sat, 29 Nov 08
New National Park Protects World's Rarest Gorilla
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bbPgHTn7-7U/081127114733.htm
A new national park to help protect the world's most endangered great ape, the Cross River gorilla, has been created. The Cross River gorilla is the rarest of the four gorilla subspecies.
Sat, 29 Nov 08
Inhaled Corticosteroids Raise Pneumonia Risk For Lung Disease Sufferers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/437ProQEDK0/081125161529.htm
Lung disease experts are calling for physicians to show much greater caution in prescribing inhaled corticosteroid drugs for people with chronic obstructive pulmonary disease after finding evidence that the widely used anti-inflammatory medications increase the risk of pneumonia by a full third.
Sat, 29 Nov 08
Protein Fibers Can Become Electrical Wiring
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Phffe5s3BoM/081125113322.htm
Researchers have succeeded in creating electrical wires consisting of protein fibers encased in plastic. The 10 nanometer thin fibers are self-organizing and compatible with biological systems.
Sat, 29 Nov 08
New Research Sheds Light On Fly Sleep Circuit
http://feeds.sciencedaily.com/~r/sciencedaily/~3/N-q9AI30lnk/081126133401.htm
Researchers have identified a specific set of wake-promoting neurons in fruit flies that are analogous to cells in the much more complex sleep circuit in humans. The study demonstrates that in flies, as in mammals, the sleep circuit is intimately linked to the circadian clock and that the brain's strategies to govern sleep are evolutionarily ancient.
Fri, 28 Nov 08
Insight Into 'Dancing' Atoms: To Make Better MRI Images, Let The Atoms Spin Out Of Control
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NkOXzb3dwuc/081125121234.htm
Scientists have made a new theoretical advance in atomic behavior that could lead to sharper magnetic resonance imaging pictures. The discovery could one day help enable the development of portable MRI machines.
Fri, 28 Nov 08
Surgeons Perform World's First Pediatric Robotic Bladder Reconstruction
http://feeds.sciencedaily.com/~r/sciencedaily/~3/62bdaZz8eTA/081120090604.htm
A 10-year-old Chicago girl born with an abnormally small bladder that made her incontinent has become the first patient to benefit from a new robotic-assisted bladder-reconstruction procedure. The surgeons have now performed the operation six times, with good results and no significant complications.
Fri, 28 Nov 08
Road Emissions Dominate Global Transport Emissions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KzbkbvFlZf8/081121081355.htm
The world’s car park is growing. It has become so big that the impact of emissions from today’s road traffic on the global temperature in 2100 will be six times greater than that from today’s air traffic.
Fri, 28 Nov 08
Hormones: The Reason Why Females With Cystic Fibrosis Have A Worse Outlook Than Males With The Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Vfkr1hn-QNI/081120173008.htm
Females with cystic fibrosis have more severe disease than males with cystic fibrosis and have a shorter lifespan. Although many suggestions have been put forward to explain this sex-related difference, a concrete mechanism to explain it has remained elusive.
Fri, 28 Nov 08
The Perfect Nanoballoon: How Ultrathin 'Graphene' Carbon Sheets Keep Everything Inside
http://feeds.sciencedaily.com/~r/sciencedaily/~3/l0vRGjSAW7A/081125135938.htm
Airtight containers are not always so airtight. As any child will discover the day after a birthday party, even a tightly tied helium balloon will leak its gas out over the course of many hours. Now scientists have come up with a supremely efficient barrier that lets nothing in or out.
Fri, 28 Nov 08
Eye Divergence In Children Triples Risk Of Mental Illness
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bgnbSriKGpY/081126150747.htm
Children whose eyes are misaligned and point outward are at significantly increased risk of developing mental illness by early adulthood, according to findings published in Pediatrics.
Fri, 28 Nov 08
Using Invisibility To Increase Visibility
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oBR494-1R0A/081127074618.htm
Research into the development of invisibility devices has spurred two physicists' thought on the behavior of light to overcome the seemingly intractable problem of optical singularities which could soon lead to the manufacturing of a perfect cat's eye.
Fri, 28 Nov 08
New Leprosy Bacterium: Scientists Use Genetic Fingerprint To Nail 'Killing Organism'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WGxfE97uZnQ/081124141047.htm
A new species of bacterium that causes leprosy has been identified through intensive genetic analysis of a pair of lethal infections, a research team reports.
Fri, 28 Nov 08
Land Iguanas Under Continuing Threat On Galapagos Archipelago
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TNRa8dGj2e4/081126133413.htm
The Galapagos Islands, which provided impetus and inspiration for Charles Darwin's seminal work, "On the Origin of Species," are home to unique populations of reptiles. Since the time of man's first visit in the 16th century to this crucial incubator for evolutionary theory, the islands' native plants and animals have faced grave challenges, including severe pressures from introduced species, habitat destruction and predation by man himself.
Fri, 28 Nov 08
Helping The Embryo Implant: A New Role For One Type Of Immune Cell
http://feeds.sciencedaily.com/~r/sciencedaily/~3/czd7O6KyPOI/081120172930.htm
One of the most critical stages in establishing a pregnancy is the implantation of the embryo in the wall of the uterus. Although the accumulation of immune cells known as DCs has been observed in the uterus after fertilization and prior to implantation, their function was not known.
Fri, 28 Nov 08
Meteorite: 10-ton Rock Responsible For Fireball In Western Canada
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Bi0LAkME_LU/081125141602.htm
Investigation of the fireball that lit up the skies of Alberta and Saskatchewan on Nov. 20 has determined that an asteroid fragment weighing approximately 10 tons entered the Earth's atmosphere over the prairie provinces last Thursday evening.
Fri, 28 Nov 08
Childhood Constipation Just As Serious As Asthma
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-VsMlkXggsE/081126122319.htm
Family life gets crazy around the holidays, and kids can get out of their bathroom routine. A new study finds childhood constipation is much more than an inconvenience - it's a common, sometimes serious medical problem that costs nearly $4 billion each year to treat. That's equal to major chronic illnesses like asthma and ADHD. We have some important tips for parents to help treat or prevent the problem before it gets serious.
Fri, 28 Nov 08
Global Warming Is Changing Organic Matter In Soil: Atmosphere Could Change As A Result
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MxQROqYTpI4/081124130948.htm
New research shows that we should be looking to the ground, not the sky, to see where climate change could have its most perilous impact on life on Earth. Scientists have shown that global warming actually changes the molecular structure of organic matter in soil.
Fri, 28 Nov 08
How DNA Is Unwound So That Its Code Can Be Read
http://feeds.sciencedaily.com/~r/sciencedaily/~3/w01Zis5Lv_4/081124141057.htm
Researchers have figured out how a macromolecular machine is able to unwind the long and twisted tangles of DNA within a cell's nucleus so that genetic information can be "read" and used to direct the synthesis of proteins, which have many specific functions in the body.
Fri, 28 Nov 08
Ocean Acidification In The Caribbean Significant, Yet Variable
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MySSU7_IgXY/081121163353.htm
A new study, which confirms significant ocean acidification across much of the Caribbean and Gulf of Mexico, reports strong natural variations in ocean chemistry in some parts of the Caribbean that could affect the way reefs respond to future ocean acidification.
Fri, 28 Nov 08
Increased Calcium Sensitivity In The Heart Can Make For An Irregular Heartbeat
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1wKyRQ6f-x8/081120173129.htm
New mouse studies, by Björn C. Knollmann and colleagues, at Vanderbilt Medical Center, Nashville, have uncovered a potential new molecular mechanism to explain why some individuals suffer irregular heartbeats that can cause sudden death. The results suggest a potential new target for drugs that would be beneficial to those at risk.
Fri, 28 Nov 08
Final World Trade Center 7 Investigation Report On September 11, 2001 Collapse Released
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-vhd82Mx0qo/081120144246.htm
The National Institute of Standards and Technology has released its final report on the Sept. 11, 2001, collapse of the 47-story World Trade Center 7 in New York City. The study is strengthened by clarifications and supplemental text suggested by comments on the draft WTC 7 report, but the revisions did not alter the investigation team's major findings and recommendations, including identification of fire as the primary cause for the building's failure.
Fri, 28 Nov 08
Secret To Workplace Happiness? Remember What You Love About The Job, Study Urges
http://feeds.sciencedaily.com/~r/sciencedaily/~3/r08s3gkhBo4/081126122317.htm
Urging employees to rethink their jobs was enough to drop absenteeism by 60 percent and turnover by 75 percent, a new study shows.
Fri, 28 Nov 08
Bacterial Biofilms As Fossil Makers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9v_Uy1Idtm8/081124174859.htm
Bacterial decay was once viewed as fossilization's mortal enemy, but new research suggests bacterial biofilms may have actually helped preserve the fossil record's most vulnerable stuff -- animal embryos and soft tissues.
Fri, 28 Nov 08
New Type Of Vaccines Deliver Stronger And Faster Immune Response
http://feeds.sciencedaily.com/~r/sciencedaily/~3/e10VtPKvh1k/081124130941.htm
A new vaccine principle is being developed by scientists in Denmark which, if it works to its full expected potential, could help to save millions of lives and revolutionize current vaccine technology. The 'InVacc' platform, as it is known, represents an advance on the original DNA vaccines and generates new vaccines with greatly enhanced properties.
Fri, 28 Nov 08
U.S. Winter Outlook Calls For Variability, According To NOAA
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mAMpvwAR4S0/081121162734.htm
In announcing the 2008-2009 U.S. Winter Outlook for meteorological winter from December through February, forecasters at the NOAA Climate Prediction Center are calling for warmer-than-normal temperatures for much of the central part of the nation, and a continuation of drier-than-normal conditions across the Southeast.
Fri, 28 Nov 08
Tumor Environment Determines Whether The Cellular Process Autophagy Enables Cancer Cells To Live Or Die
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oIKjyv8E05U/081120173048.htm
Confusingly, the cellular process autophagy (essentially self-eating) has been implicated in both cancer cell death and survival. New insight into this paradox has now been provided by work which indicates that the context in which the process occurs determines the outcome.
Fri, 28 Nov 08
Urban Trees Enhance Water Infiltration
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0qP0oF25ca0/081119120153.htm
The management of stormwater in urban areas is often focused on restoring the hydrologic cycle disrupted by extensive pavement and compacted urban soils, but now a group of researchers have been investigating innovative ways to maximize the potential of trees to address stormwater. The development of structural soil reservoirs may provide new opportunities for meeting engineering, environmental, and greenspace management needs in urban areas.
Fri, 28 Nov 08
Fear Of Hypoglycemia A Barrier To Exercise For Type 1 Diabetics
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fqGf5DRJFyU/081126122315.htm
According to a new study, published in Diabetes Care, a majority of diabetics avoid physical activity because they worry about exercise-induced hypoglycemia and severe consequences including loss of consciousness.
Fri, 28 Nov 08
Jupiter's Rocky Core Bigger And Icier, According To New Simulation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EBnCZLFOcLo/081125132520.htm
When Jupiter formed 4.5 billion years ago, rocks and ice combined to form a rocky core 14-18 times the mass of the Earth, according to a new simulation by UC Berkeley geophysicist Burkhard Militzer. This is twice what previous models predicted. Militzer employed a simulation technique designed to model the properties of semiconductors and now used for nanomaterials. This simulation also predicts few ices throughout the rest of the atmosphere.
Fri, 28 Nov 08
Bacterial Decision-making Explained By 'Moving' Theory
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cy4twiw0Mlk/081124141059.htm
Biochemists have answered a fundamental question of how important bacterial proteins make life-and-death decisions that allow them to function, a finding that could provide a new target for drugs to disrupt bacterial decision-making processes and related diseases.
Fri, 28 Nov 08
Kidney Injury Puts Elderly Individuals At High Risk For Developing Serious Kidney Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cQaZB10VW8Q/081119171320.htm
Acute kidney injury, which is often caused by trauma, illness, or surgery, predisposes elderly individuals to the most serious form of chronic kidney disease, known as end stage renal disease, according to a new study. The findings indicate that close medical follow-up is important for maintaining the health of patients who have experienced kidney damage.
Fri, 28 Nov 08
Scientists Teach Enzyme To Make Synthetic Heparin In More Varieties
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wbU1-tRMfdY/081125132516.htm
Scientists have learned to customize a key human enzyme responsible for producing heparin, opening the door to a more effective synthetic anticoagulant as well as treatments for other conditions.
Fri, 28 Nov 08
Older People Should Have The Flu Jab This Winter, Experts Urge
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yC3uJ-tfg_U/081118200549.htm
Despite recent doubts about its effectiveness, the influenza vaccine does give valuable protection against illness, hospital admission and death caused by influenza, and people over 65 should have the flu jab this winter, say experts.
Fri, 28 Nov 08
Social Amoeba Seek Kin Association
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7Mk4j7kd5oE/081124203654.htm
Starving "social amoebae" called Dictyostelium discoideum seek the support of "kin" when they form multi-cellular organisms made up of dead stalks and living spores, researchers report.
Fri, 28 Nov 08
Brain Sense Fatty Food: Molecule Shuts Down Food Intake And Turns On 'Siesta Mode'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/o2yJxYCQLzA/081126122207.htm
Researchers have identified a molecule that tells your brain when it's time to push back from the Thanksgiving table. In studies with mice and rats, researchers found that a chemical messenger called NAPE is made in the small intestine after a greasy meal, then travels to the brain, where it quashes hunger signals. Rats treated with extra NAPE ate less and lost weight.
Fri, 28 Nov 08
Humpback Whales' Dining Habits And Energy Costs Of Feasting On Tiny Prey, Revealed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8r_ASPe7A6s/081127074620.htm
As most American families sit down to Thanksgiving dinner, a University of British Columbia researcher is revealing how one of the largest animals on earth feasts on the smallest of prey -- and at what cost.
Fri, 28 Nov 08
Scientists Identify 13 New Tumor-suppressor Genes In Liver Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xJVUiwMpOOA/081118170623.htm
Researchers have developed a means of speeding up the discovery of cancer-related genes and validating their function in living animals. A collaborative effort yielded a large-scale, rapid, cost-effective genetic screen that in a preliminary test succeeded in uncovering 13 new tumor suppressors in human liver cancer, many of which have not been linked to cancer before.
Fri, 28 Nov 08
Track Your Fitness, Environmental Impact With New Cell Phone Applications
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dgjFATELtTU/081119140719.htm
Planning on gobbling a few extra treats this holiday season? Soon, your cell phone may be able to help you maintain your exercise routine and keep the pounds off over winter months, without your having to lift a finger to keep track.
Fri, 28 Nov 08
Want To Be Happier? Be More Grateful
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0h3xXLPyaQo/081125113005.htm
Want to quickly improve your happiness and satisfaction with life? Then the pen may be a mighty weapon. Researchers recruited students from six courses to explore the effects of writing letters of gratitude to people who had positively impacted the students' lives. Over the course of a six-week period, students wrote one letter every two weeks with the simple ground rules that it had to be positively expressive, required some insight and reflection, were nontrivial and contained a high level of appreciation or gratitude. "I saw their happiness increase after each letter, meaning the more they wrote, the better they felt," says the lead researcher.
Fri, 28 Nov 08
Adult Brain Neurons Can Remodel Connections
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DnjoTCgoqxI/081124174909.htm
Overturning a century of prevailing thought, scientists are finding that neurons in the adult brain can remodel their connections.
Fri, 28 Nov 08
Sealing Off Portion Of Intestinal Lining Treats Obesity, Resolves Diabetes In Animal Model
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HrKWuCeJb4w/081124151017.htm
Lining the upper portion of the small intestine with an impermeable sleeve led to both weight loss and restoration of normal glucose metabolism in an animal model of obesity-induced diabetes. Researchers report that the procedure reproducing several aspects of gastric bypass surgery led to a significant reduction in the animals' food intake and a resolution of diabetes symptoms.
Fri, 28 Nov 08
NASA Prepares For New Juno Mission To Jupiter
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VziN9gQXfhQ/081124164600.htm
NASA is officially moving forward on a mission to conduct an unprecedented, in-depth study of Jupiter. Called Juno, the mission will be the first in which a spacecraft is placed in a highly elliptical polar orbit around the giant planet to understand its formation, evolution and structure. Underneath its dense cloud cover, Jupiter safeguards secrets to the fundamental processes and conditions that governed our early solar system.
Fri, 28 Nov 08
New CT Technology Shows Anorexia Impairs Adolescent Bone Development
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NFoYHDSnpn0/081118071132.htm
Children and teenagers with even mild cases of anorexia exhibit abnormal bone structure, according to a new study.
Fri, 28 Nov 08
Computers Determine When To Stop Searches For Missing People At Sea
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0RG90npYGkk/081119084531.htm
British researchers are developing a new computer model to predict how long someone will survive when lost at sea, which will in turn determine when a search and rescue operation may be stopped.
Fri, 28 Nov 08
In Sickness And Health: Caring For Ailing Spouse May Prolong Your Life
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mLMjnl5mtZ0/081125141614.htm
Older people who spent at least 14 hours a week taking care of a disabled spouse lived longer than others. This unexpected finding is published in Psychological Science.
Fri, 28 Nov 08
Declines In U.S. Cancer Incidence And Death Rates According to Annual Report
http://feeds.sciencedaily.com/~r/sciencedaily/~3/I8kUX8nsK4g/081125161415.htm
A new report from the nation's leading cancer organizations shows that, for the first time, both incidence and death rates for all cancers combined are decreasing, driven largely by declines in some of the most common types of cancer. The report notes that, although the decreases in overall cancer incidence and death rates are encouraging, large state and regional differences in lung cancer trends among women underscore the need to strengthen tobacco control programs.
Thu, 27 Nov 08
Potentially Universal Mechanism Of Aging Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9s7MSl2dSGA/081126122203.htm
Researchers have uncovered what may be a universal cause of aging, one that applies to both single cell organisms such as yeast and multicellular organisms, including mammals. This is the first time that such an evolutionarily conserved aging mechanism has been identified between such diverse organisms. The mechanism probably dates back more than one billion years. The study shows how DNA damage eventually leads to a breakdown in the cell's ability to properly regulate which genes are switched on and off in particular settings.
Thu, 27 Nov 08
Stopping Germs From Ganging Up On Humans
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xi_Ocr3DJWk/081120103758.htm
Evolutionary theory points to a new approach to combat drug resistance in disease-causing organisms and in cancer, according to new research. Keeping germs from cooperating can delay the evolution of drug resistance more effectively than killing germs one by one with traditional drugs such as antibiotics.
Thu, 27 Nov 08
New Filtering Technology Has Environmental, Industrial Applications
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Kebn5GjKebc/081118122152.htm
Materials engineers have created a new type of membrane that separates oil from water and, if perfected, might be used for environmental cleanup, water purification and industrial applications.
Thu, 27 Nov 08
Simple New Method Detects Contaminants In Life-saving Drug
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qHr6zUa-r28/081117193011.htm
The blood-thinning drug heparin is highly effective when used to prevent and treat blood clots in veins, arteries and lungs, but earlier this year its reputation as a lifesaver was sullied when contaminated heparin products caused serious allergic reactions that led to a large number of deaths.
Thu, 27 Nov 08
Precise Measurement Of Phenomenon Advances Solar Cell Understanding
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iiLA4JkPmlk/081118161601.htm
Researchers have shed light on a basic process that could improve future solar cells. They have now directly measured the rate of hole transfer between identical porphyrin compounds in their ground states. These results are key to understanding the fundamental processes underlying charge separation and have applications for improving the efficiency of solar cells.
Thu, 27 Nov 08
Two From One: Evolution Of Genders From Hermaphroditic Ancestors Mapped Out
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ot4JzGDYgko/081120171328.htm
Research could finally provide evidence of the first stages of the evolution of separate sexes, a theory that holds that males and females developed from hermaphroditic ancestors. These early stages are not completely understood because the majority of animal species developed into the arguably less titillating separate-sex state too long ago for scientists to observe the transition.
Thu, 27 Nov 08
How Did Turtles Get Their Shells? Oldest Known Turtle Fossil, 220 Million Years Old, Give Clues
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PR5Tqt9o5YM/081126133307.htm
Since the age of dinosaurs, turtles have looked pretty much as they do now with their shells intact, and scientists lacked conclusive evidence to support competing evolutionary theories. Now with the discovery in China of the oldest known turtle fossil, estimated at 220 million years old, scientists have a clearer picture of how the turtle got its shell.
Thu, 27 Nov 08
Marijuana-inspired Painkiller? New Chemical Pathway Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/X7pKQeMpc-Q/081123150249.htm
Marijuana can be an effective painkiller, but social issues and unhealthy smoke inhalation complicate its use. As a result, researchers have focused great attention on understanding the biochemical system involved so they might manipulate it by other means. Toward that end, scientists have definitively identified a chemical pathway that, in mice, imitates marijuana's painkilling effect. The work could enable the development of new pain treatments.
Thu, 27 Nov 08
A Good Ear: Rats Identify Specific Sounds In Noisy Environments
http://feeds.sciencedaily.com/~r/sciencedaily/~3/t40sFkQf0t8/081118122105.htm
Alex Martin placed rats in a partially echo-free, sound-proof chamber and simultaneously played two types of sounds: Gaussian sound (containing all frequencies) of 25 decibels and a pure sound (made up of one frequency). He found that auditory neurons respond to a pure sound even if there is background noise.
Thu, 27 Nov 08
Cause And Possible Treatment Of Motor Neurone Disease Illuminated
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tWo7s8KRhds/081117192920.htm
Researchers have identified a molecule that could be the key to understanding the cause of neurodegenerative diseases such as motor neurone disease. This insight opens up the possibilities for developing new treatments to treat these devastating progressive conditions.
Thu, 27 Nov 08
Biomedical Research Profits From Exploration Of Deep Sea
http://feeds.sciencedaily.com/~r/sciencedaily/~3/INaUji7T4bw/081119100820.htm
Exploration of the ocean depths can benefit humankind. This is the story of a voyage of discovery, starting with marine animals that glow, the identification of the molecules responsible and their application as marker in living cells.
Thu, 27 Nov 08
200-year-old Scientific Debate Involving Visual Illusions Solved
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VSFaKpyf9YI/081120183733.htm
Neuroscientists have discovered a direct link between eye motions and the perception of illusory motion that solves a 200-year-old debate.
Thu, 27 Nov 08
Baffling Chronic Pain Linked To Weird Rewiring Of Brain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sVQjySW5mWc/081126133353.htm
Scientists peered at the brains of people with a baffling chronic pain condition and discovered something surprising. Their brains looked like an inept cable guy had changed the hookups, rewiring the areas related to emotion, pain perception and the temperature of their skin. The new finding begins to explain a mysterious condition that the medical community had doubted was real.
Thu, 27 Nov 08
SARS Virus Recreated: Opens Door For Potential Defenses Against Future Strains
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PjDhMKpKzak/081125113001.htm
Researchers have synthetically reconstructed the bat variant of the SARS coronavirus that caused the SARS epidemic of 2003.
Thu, 27 Nov 08
26 Percent Of Sleepless Children Become Overweight
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kJy8nszohsg/081118122141.htm
One quarter of children who sleep fewer than 10 hours a night become overweight by age 6, according to new research. The research team analyzed a sample of 1,138 children and found: 26 percent of kids who didn't sleep enough were overweight, 18.5 percent carried extra weight or a body mass index of 25 to 30, while 7.4 percent were obese with a body mass index greater than 30.
Thu, 27 Nov 08
Breaking BubR1 Mimics Genetic Shuffle Seen In Cancer Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xOc643fP7JA/081117091622.htm
A study of how BubR1 helps make sure chromosomes are equally distributed during mitosis might explain how the process of cell division goes so awry in cancer, according to researchers. Mutations in BubR1 lead to a genetic rearrangement similar to a process that allows cancer cells to evade destruction by medical treatment. Inhibiting BubR1 could be a strategy that enhances the killing power of current therapeutics.
Thu, 27 Nov 08
Indigo Ointment May Help Treat Patients With Psoriasis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AfczUjRHbbw/081117192904.htm
An ointment made from indigo naturalis, a dark blue plant-based powder used in traditional Chinese medicine, appears effective in treating plaque-type psoriasis, according to a report in the November issue of Archives of Dermatology.
Thu, 27 Nov 08
Prejudice Affects Perception Of Ethnic Minority Faces
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7o-vdpK3kps/081125113104.htm
Prejudice can be a powerful influence, biasing the way we think about and act towards ethnic minorities. Now, a new study revels that the way people view ethnic minority faces is related to their level of prejudice. It turns out that the visualized faces based on the choices of prejudiced people were characterized by another group as being more criminal-looking.
Thu, 27 Nov 08
Plate Tectonics Started Over 4 Billion Years Ago, Geochemists Report
http://feeds.sciencedaily.com/~r/sciencedaily/~3/y6u2pivD-II/081126133357.htm
A new picture of the early Earth is emerging, including the surprising finding that plate tectonics on Earth may have started more than four billion years ago -- much earlier than scientists had previously believed.
Thu, 27 Nov 08
Nitric Oxide Can Alter Brain Function
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aPfvSVIVVJo/081126133403.htm
Nitric oxide can change the computational ability of the brain. This finding has implications for the treatment of neurodegenerative diseases such as Alzheimer's disease and our understanding of brain function more generally.
Thu, 27 Nov 08
Clouds And Climate Change: CERES Flight Model Moves Toward Launch
http://feeds.sciencedaily.com/~r/sciencedaily/~3/992l5ESlZtg/081124163607.htm
NASA's Langley Research Center's Clouds and the Earth's Radiant Energy System (CERES) instruments have been observing clouds and the radiation budget for nearly a decade now. Key questions remain about how a warming climate will affect clouds, which play an important role in what scientists call the planet's "radiation budget."
Thu, 27 Nov 08
Behavior, Lifestyle Factors Influence Cancer Risk Among The Elderly
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nexJ6fRLRjI/081117153152.htm
Behavioral risk factors have a significant effect on cancer risk in the US elderly population, according to new research. Understanding these factors may allow clinicians to make specific recommendations for their elderly patients in order to reduce their risks of future cancers.
Thu, 27 Nov 08
Increased Irrigation In Wetland Linked To Reduction Of Tenebrionid Beetles
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7qLO5kFlrNM/081114134952.htm
Hydrological changes over the past 24 years in the Mar Menor, including increased irrigation, are altering habitats and biological communities of the wetland area. Researchers have studied tenebrionid beetles and how their numbers have declined as a result of increased ground moisture and salinity.
Thu, 27 Nov 08
Electronic Health Records May Lower Malpractice Settlements
http://feeds.sciencedaily.com/~r/sciencedaily/~3/N7lZL9lUmuU/081125141608.htm
Use of electronic health records may help reduce paid malpractice settlements for physicians, according to a new study. The study showed a trend toward lower paid malpractice claims for physicians who are active users of electronic health records technology.
Thu, 27 Nov 08
Source Of Geysers On Saturn's Moon Enceladus May Be Underground Water
http://feeds.sciencedaily.com/~r/sciencedaily/~3/t596-TpjHn8/081126133405.htm
Saturn's moon may have underground water which is spewing plumes of water vapor into space through geysers. Scientists found that the source of plumes on Enceladus may be vents on the moon that channel water vapor from a warm, probably liquid source to the surface at supersonic speeds.
Thu, 27 Nov 08
Exercise Increases Brain Growth Factor And Receptors, Prevents Stem Cell Drop In Middle Age
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NDs2lTBkyqo/081118071144.htm
A new study confirms that exercise can reverse the age-related decline in the production of neural stem cells in the hippocampus of the mouse brain, and suggests that this happens because exercise restores a brain chemical which promotes the production and maturation of new stem cells.
Thu, 27 Nov 08
Dawn Spacecraft Glides Into New Year
http://feeds.sciencedaily.com/~r/sciencedaily/~3/axF0t3d26n0/081124164156.htm
NASA's Dawn spacecraft shut down its ion propulsion system this week as scheduled. The spacecraft is now gliding toward a Mars flyby in February of next year.
Thu, 27 Nov 08
New European Guidelines On Heart Attack Management Put Emphasis On Speed Of Action
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xT5E1I8W4ns/081113181032.htm
New European guidelines on the management of heart attack emphasize speed of action and the importance of "reperfusion" therapy to restore blood flow to the heart and improve survival rates. "A well-functioning regional system of care... and fast transport to the most appropriate facility is key to the success of the treatment," state the guidelines, which have been developed by a Task Force of the European Society of Cardiology.
Thu, 27 Nov 08
New Molecular Insight Into Vertebrate Brain Development
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YC6LCw6sHMU/081117153203.htm
Scientists reveal a role for the Hippo signaling pathway in the regulation of vertebrate neural development, identifying new factors and potential therapeutic targets that may be involved in congenital brain size disorders and neurological tumor formation.
Thu, 27 Nov 08
Researcher Sheds New Light On Witch-hunting And Epidemics Of Fear
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7o5xcJr2T70/081121151918.htm
Research by the Russian semiologist Yuri M. Lotman analyzes how epidemics of fear work, through the study of witch-hunting processes which claimed thousands of victims among Catholics and Protestants.
Thu, 27 Nov 08
Hubble Captures Outstanding View Of Mammoth Stars
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3BDS43hMrHQ/081125090510.htm
The Hubble telescope has captured a spectacular image of a pair of colossal stars, WR 25 and Tr16-244, located within the open cluster Trumpler 16. This cluster is embedded within the Carina Nebula, an immense cauldron of gas and dust that lies approximately 7500 light-years from Earth.
Thu, 27 Nov 08
Sperm Size Isn't Everything
http://feeds.sciencedaily.com/~r/sciencedaily/~3/j8FQIbqBA6Q/081124194356.htm
Contrary to common scientific belief, the length of a sperm's tail does not always determine how fast it can swim. Research has shown that in the counterintuitive microscopic world in which sperm operate, streamlining and longer tails don't always provide a speed advantage.
Thu, 27 Nov 08
Light Pollution Offers New Global Measure Of Coral Reef Health
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SjyAOMBXH3M/081124174955.htm
Scientists unveil the first global index correlating night light with threats to coral reefs. The Lights Proximity Index offers a new tool for conservation and for studying the direct and indirect effects of light pollution.
Thu, 27 Nov 08
New Layer Of Regulation In Cell Division Cycle Discovered: Could Help Cancer Research
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RwNFSWZLms0/081121161123.htm
Scientists have discovered an important new layer of regulation in the cell division cycle, which could lead to a greater understanding of the way cancer begins.
Thu, 27 Nov 08
Collapse Of Helium’s Chemical Nobility Predicted By Polish Chemist
http://feeds.sciencedaily.com/~r/sciencedaily/~3/G-uwKEuSG4o/081123222840.htm
140 years since its discovery, and despite the best endeavors of many scientists, helium, the lightest of the 'noble' gases, still stubbornly refuses to enter into any chemical alliance. Now a new glimmer of hope has emerged from Poland as a chemist there has calculated that two new compounds containing a helium-oxygen bond could be formed.
Thu, 27 Nov 08
Publication Bias Found Among Trials Submitted To FDA: New Study
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wtiR6vqzJGc/081124203712.htm
A quarter of drug trials submitted in support of new drug applications to the US Food and Drug Administration remain unpublished five years after the fact, says new research.
Thu, 27 Nov 08
Synthetic Sea Worm Glue May Mend Shattered Knee, Face Bones
http://feeds.sciencedaily.com/~r/sciencedaily/~3/taHk3MZ3CUM/081125085620.htm
Sandcastle worms live in intertidal surf, building sturdy tube-shaped homes from bits of sand and shell and their own natural glue. Bioengineers have made a synthetic version of this seaworthy superglue, and hope it will be used within several years to repair shattered bones in knees, other joints and the face.
Thu, 27 Nov 08
Pain Is In The Eye Of The Beholder
http://feeds.sciencedaily.com/~r/sciencedaily/~3/r41e9M-bGh8/081125141610.htm
By manipulating the appearance of a chronically achy hand, researchers have found they could increase or decrease the pain and swelling in patients moving their symptomatic limbs. The findings reveal a profound top-down effect of body image on body tissues, according to the researchers.
Thu, 27 Nov 08
Scientists Shed Light On Evolution Of Gene Regulation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/H78UGA6NeWo/081125113108.htm
Scientists have shed light on some of the processes that regulate genes and on the evolution of the DNA regions that regulate genes. The team focused on regulatory regions that, when bound to a certain protein, are thought to turn on genes that play an important role in the development of red blood cells. The research results could help in the development of drugs to treat sickle-cell anemia and other blood disorders.
Thu, 27 Nov 08
High Blood Pressure In The Doctor's Office May Not Predict Heart Risks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hHv0MFPZlW4/081124165119.htm
Continuously measuring blood pressure may help predict heart disease and related deaths among individuals with treatment-resistant hypertension, while blood pressure readings taken in a medical office do not appear to predict future heart risks, according to a report in Nov. 24 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.
Thu, 27 Nov 08
New Light Shed On Catalyzed Reactions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VgkF9_NHx2o/081119144556.htm
Scientists searching for a better way to clean up the stubborn pollutant TCE have found a new way to watch the molecules break apart as individual chemical bonds are formed and broken. Researcher Michael Wong says, "We can watch how molecules transform into other molecules step-by-step. There's no other method that lets you 'see' these catalyzed reactions in water while the reaction is happening."
Thu, 27 Nov 08
Mothers' Mental Games Increase Depressive Symptoms In Daughters, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eWtbiGNqx34/081124131229.htm
A new study in the journal Family Relations examined the effects of a mother's psychological control on the risk for depression of African-American adolescents. Researchers found that girls whose mothers played mental games with them like making them feel guilty or withdrawing expressions of love reported much higher levels of depressive symptoms and lower levels of personal agency.
Thu, 27 Nov 08
Record Set Simulating Seismic Wave Propagation Across The Earth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/erDIH4936Ao/081125113106.htm
Scientists have successfully completed record-setting, petascale-level simulations of the earth's inner structure, paving the way for seismologists to model seismic wave propagations at frequencies of just over one second -- the same frequencies that occur in nature.
Thu, 27 Nov 08
Tiny Protein Provokes Healthy Bonding Between Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eFmiqYx8Iu8/081125141606.htm
In human relationships, a certain "spark" often governs whether we prefer one person to another. Critical first impressions can occur within seconds. Researchers have found that cell-to-cell "friendships" operate in much the same way and that dysfunctional bonding is linked to the spread of cancer.
Thu, 27 Nov 08
Gasping Helps Cardiac Arrest Victims Survive, New Research Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/H0g1lrsHhE0/081124165125.htm
People who witness an individual collapse suddenly and unexpectedly should perform uninterrupted chest compressions even if the patient gasps or breathes in a funny way, a new study shows. Researchers hope their findings lead to greater willingness of untrained bystanders to jump in and perform continuous chest compressions.
Thu, 27 Nov 08
Misfolded Proteins Accelerate Yeast Evolution
http://feeds.sciencedaily.com/~r/sciencedaily/~3/a09MQkS9jmU/081124203828.htm
In yeast, a protein-misfolding mechanism can reveal hidden genetic variations and thus generate new phenotypes that may increase cell survival. Researchers now have demonstrated that when yeast cells are stressed, this mechanism is triggered much more often. This heightened ability to adapt to changing environments may be maintained in yeast as a way to accelerate evolutionary changes.
Thu, 27 Nov 08
Archeology Of Homelessness
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QLnrOb0w-Rs/081124130956.htm
No matter what you see in the movies, archaeology isn't really about finding ancient temples or golden idols. It's about the day-to-day "stuff" -- the material culture—of people's lives. It doesn't even have to be ancient, as a study of homeless peoples' stuff in Indianapolis is showing. Instead of being an exotic field, archaeology may even help the homeless to live better lives.
Wed, 26 Nov 08
Sweet Molecule Could Lead Us To Alien Life
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rWQffSnt0q4/081125090344.htm
Scientists have detected an organic sugar molecule that is directly linked to the origin of life, in a region of our galaxy where habitable planets could exist.
Wed, 26 Nov 08
Key Advance Toward Treatment For Most Common Adult Form Of Muscular Dystrophy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9dHJyMy5N8A/081119084242.htm
Using a drug-discovery technique in which molecules compete against each other for access to the target, scientists have identified several compounds that, in the laboratory, block the unwanted coupling of two molecules that is at the root of muscular dystrophy.
Wed, 26 Nov 08
Space Waste: Handling Garbage When Your Dumpster Is 100 Million Miles Away?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FLJkwjz3_nM/081118121948.htm
In space, no one takes out the trash. Garbage can pile up, spoil and become a health hazard for astronauts in the cramped living quarters of a space station.
Wed, 26 Nov 08
'Let The Sunshine In' To Protect Your Heart This Winter
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yC-B8f12uOU/081117110840.htm
The temperature might not be the only thing plummeting this winter. Many people also will experience a decrease in their vitamin D levels, which can play a role in heart disease, according to a new article.
Wed, 26 Nov 08
Nontoxic Nanoparticle Can Deliver And Track Drugs, According To New Research
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XUcutIW6q9c/081118150637.htm
A nontoxic nanoparticle is proving to be an all-around effective delivery system for both therapeutic drugs and the fluorescent dyes that can track their delivery.
Wed, 26 Nov 08
Household Exposure To Toxic Chemicals Lurks Unrecognized, Researchers Find
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JldjO_l0fqY/081121092451.htm
Many women are surprised to learn the extent of personal, in-home contamination caused by exposure to everyday consumer products, according to a team of researchers. The study, published in the Journal of Health and Social Behavior, is one of the first accounts of participants' responses to learning personal exposure data, research critical to environmental science and public health.
Wed, 26 Nov 08
Hubble Resolves Puzzle About Loner Starburst Galaxy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4yOutZ6tTZE/081124164420.htm
Astronomers have long puzzled over why a small, nearby, isolated galaxy is pumping out new stars faster than any galaxy in our local neighborhood. Now NASA's Hubble Space Telescope has helped astronomers solve the mystery of the loner starburst galaxy, called NGC 1569, by showing that it is one and a half times farther away than astronomers thought.
Wed, 26 Nov 08
Some Cancers Found By Mammograms Would Have Naturally Regressed, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MhYZ2RI2WBk/081124165117.htm
Breast cancer rates increased significantly in four Norwegian counties after women there began undergoing mammography every two years, according to a new report. Rates among regularly screened women remained higher than rates among women of the same age who were screened only once after six years, suggesting that some of the cancers detected by mammography may have spontaneously regressed had they not been discovered and treated.
Wed, 26 Nov 08
New Tool Trains Athlete Brains To React 53 Percent Faster
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gjcDHtyUQfo/081118122107.htm
Researchers have discovered how to train the brain of athletes to improve their overall athletic performance.
Wed, 26 Nov 08
Breast Cancer Common Among Women With Family History But Without BRCA1 Or BRCA2
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zqfVGMi6Kso/081117103647.htm
New data assesses breast cancer risk among women with a strong family history of breast cancer, but without a BRCA1 or BRCA2 mutation. This may facilitate earlier detection and prevention among high-risk women.
Wed, 26 Nov 08
Nanocoatings Boost Industrial Energy Efficiency
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bYXF7LZlOeU/081118131901.htm
Reducing friction in industrial machinery can save substantial amounts of energy and researchers are working to develop nanoscale coatings for machine parts that not only reduce friction but extend tool life as well. Estimated energy savings from the innovation could reach 31 trillion BTUs annually by the year 2030.
Wed, 26 Nov 08
Study Reveals Smoking's Effect On Nurses' Health, Death Rates
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Y7W9fnXtzOs/081113140430.htm
A new UCLA School of Nursing study is the first to reveal the devastating consequences of smoking on the nursing profession. The findings describe smoking trends among nurses and emphasize the importance of supporting smoking cessation programs for U.S. nurses.
Wed, 26 Nov 08
Jurassic Turtles Could Swim
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1Qebszeftv0/081119093227.htm
Around 164 million years ago the earliest aquatic turtles lived in lakes and lagoons on the Isle of Skye, Scotland, according to new research.
Wed, 26 Nov 08
14 Drugs Identified As Most Urgently Needing Study For Off-label Use
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8IJq02XuIUo/081124130939.htm
Physicians and policy-makers know that drugs are frequently prescribed to treat certain diseases despite a lack of FDA approval, a practice known as off-label prescribing. Now researchers have developed a list of 14 widely prescribed medications most urgently in need of additional study to determine how effective and safe they are for their off-label uses. Antidepressants and antipsychotics are the most prominent classes of drugs on the list.
Wed, 26 Nov 08
NASA Plans Test Of 'Electronic Nose' On International Space Station
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_Fr_Ae3lL8o/081119164314.htm
NASA astronauts on Space Shuttle Endeavour's STS-126 mission will install an instrument on the International Space Station that can "smell" dangerous chemicals in the air. Designed to help protect crew members' health and safety, the experimental "ENose" will monitor the space station's environment for chemicals such as ammonia, mercury, methanol and formaldehyde.
Wed, 26 Nov 08
Vitamin D Can Alter Color Cancer Cells In Many Ways, Through One Pathway
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KPS_3c9zDig/081117091614.htm
A colon cancer cell isn't a lost cause. Vitamin D can tame the rogue cell by adjusting everything from its gene expression to its cytoskeleton. Scientists now show that one pathway governs the vitamin's diverse effects. The results help clarify the actions of a molecule that is undergoing clinical trials as a cancer therapy.
Wed, 26 Nov 08
Acid Soils In Slovakia Tell Somber Tale
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3-cvX1Pqq7Q/081117153158.htm
Increasing levels of nitrogen deposition associated with industry and agriculture can drive soils toward a toxic level of acidification, according to a study published in Nature Geoscience.
Wed, 26 Nov 08
Two Antidepressants Taken During Pregnancy Linked To Heart Anomalies In Babies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zbbR5oF1xZs/081124081150.htm
Women who took the antidepressant fluoxetine during the first three months of pregnancy gave birth to four times as many babies with heart problems as women who did not and the levels were three times higher in women taking paroxetine.
Wed, 26 Nov 08
Ocean Growing More Acidic Faster Than Once Thought; Increasing Acidity Threatens Sea Life
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QbVwcjUVd-Q/081124141053.htm
Scientists have documented that the ocean is growing more acidic faster than previously thought. In addition, they have found that the increasing acidity correlates with increasing levels of atmospheric carbon dioxide. The increasingly acidic water harms certain sea animals and could reduce the ocean's ability to absorb carbon dioxide.
Wed, 26 Nov 08
Controlling Bad Cholesterol: Finding May Herald Scientific Breakthrough
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pTgJLzUcO7Q/081124130953.htm
A new study shows for the very first time that the degradation by PCSK9 of the LDLR receptor, which is responsible for removing the bad cholesterol from the bloodstream, may be inhibited by a third protein, annexin A2.
Wed, 26 Nov 08
Grow Old In Good Health: Vast Disparity Between European Countries
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UZ36BIDeCIM/081117082429.htm
Although life expectancy is constantly growing in the countries of the EU, living longer isn't always the same as living well, and knowing to what age someone will live in good health remains a different question altogether.
Wed, 26 Nov 08
Chemotherapy Plus Targeted Therapies Shows Improved Survival In Advance-stage Lung Cancer Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zEjyPpwA4FA/081113091621.htm
The combination of traditional chemotherapy agents with targeted therapies called monoclonal antibodies showed no safety concerns and improved survival in patients with advanced non-small cell lung cancer according to a study presented at the 2008 Chicago Multidisciplinary Symposium in Thoracic Oncology, sponsored by ASTRO, ASCO, IASLC and the University of Chicago.
Wed, 26 Nov 08
New Catalysts Promise Faster, Cleaner And More Efficient Research Platform
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5IushlqSnxo/081116142336.htm
A new class of catalysts provides a highly selective, efficient and environmentally friendly new platform for research in medicine, biology and materials science.
Wed, 26 Nov 08
Television: Not The Only Channel To Early Sex
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ri9p3LGiD7I/081124102744.htm
A new study says a combination of factors must be targeted to reduce sexual activity in teenagers. In 2006, the Centers for Disease Control and Prevention found that 750,000 pregnancies and almost half of new cases of sexually transmitted infections were among adolescents.
Wed, 26 Nov 08
Getting Warmer? Prehistoric Climate Can Help Forecast Future Changes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/q14oUBPvCZI/081124141055.htm
New data on a prehistoric warm period allow for more accurate predictions of future climate and improved understanding of today's warming. Past warm periods provide real data on climate change and are natural laboratories for understanding the global climate system. Scientists examined fossils from 3.3 to 3.0 million years ago, known as the mid-Pliocene warm period.
Wed, 26 Nov 08
Novel Approach For Suppressing Prostate Cancer Development
http://feeds.sciencedaily.com/~r/sciencedaily/~3/I7SoGjqD24g/081124174905.htm
Researchers have found that inactivating a specific biomarker for aggressive prostate cancer blocks the development of prostate cancer in animal models.
Wed, 26 Nov 08
Why Poppies Have One Flower Per Stalk and Tomatoes Have Many
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qIlAndhxrjQ/081117203839.htm
Why do poppies and sunflowers grow as a single flower per stalk while each stem of a tomato plant has several branches, each carrying flowers? Botanists have identified a genetic mechanism that determines the pattern of flower growth in the Solanaceae family of plants that includes tomato, potato, pepper, eggplant, tobacco, petunia and deadly nightshades.
Wed, 26 Nov 08
Hypertension Develops Early, Silently, In African-American Men
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xg0-h2yydaw/081117082046.htm
Young and healthy African-American men were found to silently develop hypertension earlier than their white counterparts, and this rise in blood pressure may go undetected unless young African-American men are screened by measuring central blood pressure, not brachial pressure, according to a new study.
Wed, 26 Nov 08
Chinese Forest Project Could Reduce Number Of Environmental Disasters
http://feeds.sciencedaily.com/~r/sciencedaily/~3/f4srkGoGcNY/081124165134.htm
The "Green Great Wall," a forest shelterbelt project in northern China running nearly parallel to the Great Wall, is likely to improve climatic and hydrological conditions in the area when completed, according to a new study.
Wed, 26 Nov 08
Developing A Neighborhood Watch For The Internet
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iOFO25cGeAM/081124141049.htm
Internet network performance problems are not only annoying to users -- they are costly to businesses and network operators. But since the Internet has no built-in monitoring system, network problems often go unnoticed. To help fix this problem, researchers have developed a new way to detect and report such problems in real time. Network Early Warning System focuses only on problems that affect end-users and does so without requiring any extra network-measurement traffic.
Wed, 26 Nov 08
'Gray's Paradox' Solved: Researchers Discover Secret Of Speedy Dolphins
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Rr-0koqwIFA/081124131334.htm
In 1936, zoologist Sir James Gray observed dolphins swimming faster than 20 mph, but his studies had concluded that the muscles of dolphins simply weren't strong enough to support that speed. The conundrum came to be known as "Gray's Paradox." For decades the puzzle prompted much speculation and conjecture in the scientific community. But now, armed with cutting-edge flow measurement technology, researchers have tackled the problem and conclusively solved Gray's Paradox.
Wed, 26 Nov 08
Overuse Of Narcotics And Barbiturates May Make Migraine Attacks More Frequent
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fhlYB0nJNNs/081119092941.htm
Scientists have determined that certain commonly-prescribed medications may have the unintended consequence of increasing the frequency of migraine attacks.
Wed, 26 Nov 08
E. Coli Bacteria Transferring Between Humans And Mountain Gorillas
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BqHoizfvDbw/081124165253.htm
A new study finds that mountain gorillas are at increased risk of acquiring gastrointestinal microbes, such as E. coli, from humans. The study examines the exchange of digestive system bacteria between humans, mountain gorillas and domestic animals with overlapping habitats.
Wed, 26 Nov 08
Inherited Genetic Cause, Possible Treatment Found For Complex Lung Disorder
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jvXSWIQGgEM/081124130943.htm
A tale of two sisters has helped researchers solve a medical mystery and discover a familial genetic mutation that causes an inherited form of the lung disease pulmonary alveolar proteinosis. The researchers also point to the possibility of an inhaled therapy to overcome a chain of molecular events that lead to PAP.
Wed, 26 Nov 08
Pinning Down The Fleeting Internet: Web Crawler Archives Historical Data For Easy Searching
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xjc94B1SC6M/081117153236.htm
Researchers are grabbing hold of the fleeting Web and storing historical Web sites that users can easily search using an intuitive application called Zoetrope.
Wed, 26 Nov 08
Study Shows How Social Support May Protect Brain During Stroke
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_PJxWTl5XHE/081118121935.htm
New research in mice suggests that high levels of social support may provide some protection against strokes by reducing the amount of damaging inflammation in the brain. Researchers found that male mice that lived with a female partner before and after a stroke had a much higher survival rate compared to those mice that lived alone.
Wed, 26 Nov 08
Feed A Cold, Feed A Fever: Calorie Cut Makes It Harder To Fight Flu, Animal Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/emMAu-UcLZA/081125113102.htm
Dieters or those who consume fewer calories during flu season could have a harder time fighting off the flu virus, according to a nutritional immunology professor. Researchers have shown that mice with a calorie-restricted diet were more likely to die during the first few days of infection than mice with a normal diet.
Wed, 26 Nov 08
Robotic Lizards Help Prove Long-standing Signaling Theory
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mBrNT1s_ssA/081124174849.htm
Like teachers who rap a ruler before announcing homework in noisy classrooms, Puerto Rican anole lizards perform eye-catching pushups before beginning head-bobbing displays that advertise their territory and status, according to a new study. The study is the first to show that animals in noisy environments can use visual displays to grab their neighbors' attention before initiating a more information-rich performance.
Wed, 26 Nov 08
New Research Helps Explain Genetics Of Parkinson's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RIKwfkyz8H8/081124102659.htm
A new study suggests that Parkin, the product of the Parkinson's disease-related gene Park2, prompts neuronal survival by clearing the cell of its damaged mitochondria.
Wed, 26 Nov 08
RFID Chips: A Privacy And Security Pandora's Box?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mT9zhmeNLwk/081118141854.htm
A research article published in the current issue of the International Journal of Intellectual Property Management suggests that Big Brother could be opening a privacy and security Pandora's Box if human rights, particularly regarding data protection are not addressed in the design of new RFID applications.
Wed, 26 Nov 08
Football Helmet Shields Can Protect Against A Kick In The Face, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GDKdlorZOA4/081117193017.htm
Researchers have determined that the two most popular brands of football helmet faceshields can withstand a hit equivalent to a kick in the face and provide that protection without disrupting players' vision. The eye specialists used an air cannon to hurl baseballs at the plastic faceshields. The impact was designed to mimic the force of a kick to the face, considered the riskiest way to sustain an eye injury in football.
Tue, 25 Nov 08
Global Warming Predictions Are Overestimated, Suggests Study On Black Carbon
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pfc9M0IzOWQ/081119120155.htm
A detailed analysis of black carbon -- the residue of burned organic matter -- in computer climate models suggests that those models may be overestimating global warming predictions.
Tue, 25 Nov 08
New Diabetes Treatment? New Source Of Insulin-producing Cells Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BbQCq08K8b8/081124174855.htm
Researchers have shown that insulin-producing pancreatic beta cells can form after birth or after injury from progenitor cells within the pancreas that were not beta cells.
Tue, 25 Nov 08
Forests May Play Overlooked Role In Regulating Climate
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uHZfgKw1BSg/081117192811.htm
Scientists show that forests may influence the Earth's climate in important ways that have not previously been recognized.
Tue, 25 Nov 08
Pain And Itch Responses Regulated Separately
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jTPc3MRtIEQ/081117153156.htm
Historically, scientists have regarded itching as a less intense version of the body's response to pain, but researchers have now determined that pain and itch actually are regulated by different molecular mechanisms.
Tue, 25 Nov 08
Can An Ant Be Employee Of The Month?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/n8zrXJnCXxs/081117203826.htm
Ants specializing on one job such as snatching food from a picnic are no more efficient than "Jane-of-all-trade" ants, according to new research from the University of Arizona in Tucson. The finding casts doubt on the idea that the worldwide success of ants stems from job specialization within the colony.
Tue, 25 Nov 08
How Is Our Left Brain Is Different From Our Right?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/osMhDXdigoQ/081117192918.htm
Scientists found that synaptic size and shape in the center of the spatial memory (i.e. hippocampus) were asymmetrical between synapses receiving input from the left and right hemisphere. Differences were found in the synaptic connections of the learning center of the brain.
Tue, 25 Nov 08
Old Flies Can Become Young Moms
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WinM-zFfsaI/081124141051.htm
Female flies can turn back the biological clock and extend their lifespan at the same time, biologists report. Study casts doubt on the old notion of a trade off between reproduction and longevity.
Tue, 25 Nov 08
Transporting Broiler Chickens Could Spread Antibiotic-resistant Organisms
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yM2OB-De_f4/081124130946.htm
Researchers have found evidence of a novel pathway for potential human exposure to antibiotic-resistant bacteria from intensively raised poultry -- driving behind the trucks transporting broiler chickens from farm to slaughterhouse.
Tue, 25 Nov 08
Robots Created That Develop And Display Emotions And Become Attached To Certain People
http://feeds.sciencedaily.com/~r/sciencedaily/~3/62q4eY84D6g/081120111622.htm
New robots develop and display emotions as they interact with humans, and become attached to them.
Tue, 25 Nov 08
FoxJ1 Helps Cilia Beat A Path To Asymmetry
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9M0mfAB4h_k/081116142334.htm
Scientists have discovered how a genetic switch, known as FoxJ1, helps developing embryos tell their left from their right. While at first glance the right and left sides of our bodies are identical to each other, this symmetry is only skin-deep. Below the surface, some of our internal organs are shifted sideways -- heart and stomach to the left, liver and appendix to the right.
Tue, 25 Nov 08
Microarray Analysis Improves Prenatal Diagnosis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RZGEDHNWxPs/081117110842.htm
A "chip" or array that can quickly detect disorders such as Down syndrome or other diseases associated with chromosomal abnormalities proved an effective tool in prenatal diagnosis in a series of 300 cases at Baylor College of Medicine, according to an article in the journal Prenatal Diagnosis.
Tue, 25 Nov 08
'Wiring' In The Brain Influences Personality
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FV2IuFy5DQk/081123150245.htm
Some people are constantly seeking a new kick; some prefer to stick to tried and tested things. Which group you belong to seems to be connected, inter alia, with the 'wiring' of specific centers of the brain. This was discovered by scientists at the University of Bonn using a new method. Even how much acceptance people seek is apparently also determined by nerve fibers in the brain.
Tue, 25 Nov 08
Microcapsules Act As 'Roach Motel' To Kill Harmful Bacteria
http://feeds.sciencedaily.com/~r/sciencedaily/~3/m4t2Tu8MDl4/081119155459.htm
Scientists have created tiny microscopic spheres that trap and kill harmful bacteria in a manner the scientists liken to "roach motels" snaring and killing cockroaches. The research could lead to new coatings that will disinfect common surfaces, combat bioterrorism or sterilize medical devices, reducing the devices' responsibility for an estimated 1.4 million infection-related deaths each year.
Tue, 25 Nov 08
Gulf War Research Panel Finds 1 In 4 Veterans Suffers From Illness Caused By Toxic Exposure
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2b91olI6z4k/081117121239.htm
At least one in four of the 697,000 US veterans of the 1991 Gulf War suffer from Gulf War illness, a condition caused by exposure to toxic chemicals, including pesticides and a drug administered to protect troops against nerve gas, and no effective treatments have yet been found, a federal panel of scientific experts and veterans concludes in a new report.
Tue, 25 Nov 08
Deep Heat Solution To 500-million Year Fossil Mystery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GOdekkRuVtk/081112074906.htm
Scientists have shed new light on a 500-million year old mystery. Some 500 million year-old fossils of the Burgess Shale in Canada, discovered over a century ago, still provide one of the most remarkable insights into the dawn of animal life. The beautiful silvery fossils show the true nature of the life of that time, just after the "Cambrian explosion" of animal life. Yet, their existence is a paradox: the fossils have been buried deep in the Earth's crust and heated to over 300°C (~600 °F), before being thrust up by tectonic forces to form a mountainous ridge in the Rockies.
Tue, 25 Nov 08
Advanced Lung Cancer Patients See Improved, Progression-free Survival
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sIYqe5DH_MI/081113091619.htm
Patients with advanced non-small cell lung cancer whose disease has progressed following chemotherapy have a higher rate of tumor shrinkage and a longer interval before cancer progression when bevacizumab is added to standard second-line erlotinib therapy, according to a study presented at the 2008 Chicago Multidisciplinary Symposium in Thoracic Oncology, sponsored by ASTRO, ASCO, IASLC and the University of Chicago.
Tue, 25 Nov 08
Sicilian Plant Gene Enters British Genetic Language
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qqw9xdBXg3U/081113181158.htm
Scientists have identified a key gene that was transferred from a Sicilian plant into a close relative in Britain, showing how genetic cross-talk between species can be important for evolution.
Tue, 25 Nov 08
Predicting The Future For Patients With Severe Traumatic Brain Injury
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aVfInVDUt3Y/081117110831.htm
"How will our loved one come out of this?" After an accident that results in severe traumatic brain injury, the answer to this simple question can change everything. A new study describes the tools that are most effective at providing an objective answer to this question almost as soon as patients leave intensive care.
Tue, 25 Nov 08
Flies May Reveal Evolutionary Step To Live Birth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dUWhhJNyMlU/081123222848.htm
A species of fruit fly from the Seychelles Islands often lays larvae instead of eggs, biologists have discovered. Clues to how animals switch from laying eggs to live birth may be found in the well-studied species' ecology and genes.
Tue, 25 Nov 08
Drug Therapy For Premature Infants Destroys Brain Cells In Mice
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Zt38Dr74cBk/081117121227.htm
A class of drugs that are used in premature infants to treat chronic lung damage can cause damage in the brain. New research suggests the drugs may cause cognitive and motor-control problems even when they are given before birth.
Tue, 25 Nov 08
Sea Level Rise Alters Chesapeake Bay's Salinity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Q4EQTQKiDec/081120122157.htm
While global-warming-induced coastal flooding moves populations inland, the changes in sea level will affect the salinity of estuaries, which influences aquatic life, fishing and recreation.
Tue, 25 Nov 08
Breast Cancer Incidence Among Premenopausal U.S. Women
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qturANH8qTQ/081111200503.htm
African-American women under the age of 40 have a higher risk of breast cancer than do white women of a similar age. White women aged 40 and older, however, have a higher incidence than black women aged 40 and older.
Tue, 25 Nov 08
Value Of Satellites Recognized For Conserving Wetlands
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zrtCA8_LUIo/081114091836.htm
Wetlands contribute to our lives in remarkable ways by providing food and water, controlling floods, protecting against storms and supporting biodiversity, yet they are experiencing loss and degradation on a massive scale.
Tue, 25 Nov 08
Race Bigotry Falling In Britain, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PBdJDpk8epY/081124131227.htm
Racial prejudice in Britain has been declining sharply in Britain since the 1980s thanks to the greater tolerance of younger generations, according to a new study. The research finds that social contact with black or Asian Britons is becoming increasingly unremarkable to white people in their 20s and 30s.
Tue, 25 Nov 08
Binary Star Explosion Inside Nebula Challenges Star Theory
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WtKFVPXR6KY/081119084533.htm
The explosion of a binary star inside a planetary nebula has been captured -- an event that has not been witnessed for more than 100 years. The study predicts that the combined mass of the two stars in the system may be high enough for the stars to eventually spiral into each other, triggering a much bigger supernova explosion.
Tue, 25 Nov 08
Drops In Blood Oxygen Levels May Be Key To Sudden Death In Some Epilepsy Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0a1qy5kHChc/081117131717.htm
A new study suggests that the sudden unexplained deaths of some epilepsy patients may be a result of their brains not telling their bodies to breathe during seizures.
Tue, 25 Nov 08
NASA And DOE Collaborate On Dark Energy Research
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4QIeUSsGZP0/081119171826.htm
NASA and the U.S. Department of Energy have signed a memorandum of understanding for the implementation of the Joint Dark Energy Mission, or JDEM. The mission will feature the first space-based observatory designed specifically to understand the nature of dark energy.
Tue, 25 Nov 08
New Clinical Study Will Help Doctors Assess Abnormal Bleeding
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Po6-01M8oZA/081111213541.htm
How do you know if you bleed normally? Scientists aim to answer that question more definitively with the launch of an assessment tool designed to help physicians and researchers more accurately determine what is inside and outside the normal range of bleeding symptoms.
Tue, 25 Nov 08
Genetic Information Advances The Breeding Of Dairy Cattle
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zwZcPF0gM_U/081117082244.htm
A Finnish researcher has demonstrated the impact of two candidate genes on the protein and fat content of milk and on the overall milk yield from dairy cows. The work also involved devising a method for identifying genetic polymorphisms in a sample extracted from a bovine embryo.
Tue, 25 Nov 08
Applying 'Supply And Demand' Business Principles To Treat Infectious Diseases Worldwide
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oFfaWwNF9wc/081117131707.htm
Treating infectious diseases while meeting escalating costs to do so continues to pose worldwide challenges, with one of the main issues being the ability to provide an adequate supply of drugs to treat infectious diseases.
Tue, 25 Nov 08
Strangulation Of Spiral Galaxies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SW2hJSDrzAc/081124194936.htm
Astronomers have uncovered a type of galaxy that represents a missing link in our understanding of galaxy evolution. Galaxy Zoo, which uses volunteers from the general public to classify galaxies, and the Space Telescope A901/902 Galaxy Evolution Survey (STAGES) projects have used their vast datasets to disentangle the roles of "nature" and "nurture" in changing galaxies from one variety to another.
Tue, 25 Nov 08
Combination Therapies May Be Almost As Effective As Insecticide-treated Bednets In Preventing Malaria In Areas Of Low Transmission
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OqNBgaulbM0/081124194933.htm
Artemisinin combination therapies (ACTs) could be almost as effective in reducing transmission of malaria as insecticide-treated bednets (ITNs) in areas of low transmission, a study based on data from Tanzania has found. In high transmission areas, long-acting antimalarial regimens may be needed to achieve significant transmission reductions.
Tue, 25 Nov 08
Mystery Of Missing Hydrogen: Apparent Absence From Distant Galaxies Puzzles Astronomers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SXydd2SVDDI/081124102701.htm
Something vital is missing in the far distant reaches of the universe: hydrogen -- the raw material for stars, planets and possible life. The discovery of its apparent absence from distant galaxies by a team of Australian astronomers is puzzling because hydrogen gas is the most common constituent of normal matter in the universe.
Tue, 25 Nov 08
Mineral Oil Contamination In Humans: A Health Problem?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VOSzD71_mbk/081124102706.htm
From a quantitative standpoint, mineral oil is probably the largest contaminant of our body. That this contaminant can be tolerated without health concerns in humans has not been proven convincingly. An editorial in the European Journal of Lipid Science and Technology reflects on this and concludes that this proof either has to be provided or we have to take measures to reduce our exposure from all sources, including cosmetics, pharmaceuticals and the environmental contamination.
Tue, 25 Nov 08
Quantum Computing Spins Closer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uxfSVCiWDzM/081121101007.htm
The steps needed to achieve speedy optical control of electron spin in a quantum dot are revealed in a new study published in the journal Nature. The instructions bring the prospect of fast quantum computers one step closer.
Tue, 25 Nov 08
Strategy For Predicting Immunity Of Vaccines Developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/71qf6o6SYT4/081123150257.htm
Researchers have developed a multidisciplinary approach involving immunology, genomics and bioinformatics to predict the immunity of a vaccine without exposing individuals to infection. This approach addresses a long-standing challenge in the development of vaccines -- that of only being able to determine immunity or effectiveness long after vaccination and, often, only after being exposed to infection.
Tue, 25 Nov 08
Centenarians 'Grossly' Underdiagnosed for Depression
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nJjcarFWJ4M/081124080810.htm
Research presented at the Gerontological Society of America's annual meeting found that depression among centenarians is grossly underdiagnosed: more than 25 percent showed clinical levels of depression, yet only 8 percent had been diagnosed.
Tue, 25 Nov 08
Preventing Tumor Cells From Refueling: A New Anti-cancer Approach?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yBX78QdxuAE/081120171319.htm
Not all cells in a tumor are equal. New data, generated in mice, now suggests that targeting one set of tumor cells (specifically those in regions of the tumor rich in oxygen) can limit the growth of other tumor cells (specifically those in regions of the tumor deprived of oxygen). This approach decreased tumor growth in two models of cancer and rendered the remaining cells sensitive to irradiation.
Tue, 25 Nov 08
Fall Babies: Born To Wheeze?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tGsb3aN8N2c/081121080825.htm
It is said that timing is everything and that certainly appears to be true for autumn infants. Children who are born four months before the height of cold and flu season have a greater risk of developing childhood asthma than children born at any other time of year, according to new research.
Tue, 25 Nov 08
Second Warmest October For Global Temperatures, NOAA Says
http://feeds.sciencedaily.com/~r/sciencedaily/~3/x_2YrVBGMWs/081121162107.htm
The combined global land and ocean surface average temperature for October 2008 was the second warmest since records began in 1880, according to a preliminary analysis by NOAA.
Tue, 25 Nov 08
Tinnitus: Psychological Treatment And Neurostimulation Offer Hope
http://feeds.sciencedaily.com/~r/sciencedaily/~3/42Rf_nDrDUc/081120175851.htm
A remarkable number of patients with tinnitus demonstrate withdrawal behavior and have a negative view of life. Feelings of anxiety and depression result in patients experiencing the complaint as a major burden on their quality of life. In addition to psychological treatment, neurostimulation now also appears to be a very promising therapy.
Tue, 25 Nov 08
Cosmic Ray 'Hot Spots' Bombarding Earth With Cosmic Rays
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cawjxdpKM3g/081124102708.htm
A Los Alamos National Laboratory cosmic-ray observatory has seen for the first time two distinct hot spots that appear to be bombarding Earth with an excess of cosmic rays. The research calls into question nearly a century of understanding about galactic magnetic fields near our solar system.
Tue, 25 Nov 08
First Comprehensive Map Of Genes Likely To Be Involved In Bipolar Disorder
http://feeds.sciencedaily.com/~r/sciencedaily/~3/a5y6kQJwZX0/081121180438.htm
Neuroscientists have created the first comprehensive map of genes likely to be involved in bipolar disorder.
Tue, 25 Nov 08
Plants Grow Bigger And More Vigorously Through Changes In Their Internal Clocks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8ZikZLThNRw/081123150255.htm
Hybrid plants, like corn, grow bigger and better than their parents because many of their genes for photosynthesis and starch metabolism are more active during the day, report researchers in the journal Nature.
Tue, 25 Nov 08
Mechanisms Of Cardiovascular Disease And Cancer Give Clues To New Therapies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iyH5_hxMXuc/081121081057.htm
Cardiovascular conditions leading to heart attacks and strokes are treated quite separately from common cancers of the prostate, breast or lung, but now turn out to involve some of the same critical mechanisms at the molecular level. This in turn provides clues to more effective therapies for both cancer and cardiovascular diseases, but requires researchers in these distinct fields to come together.
Mon, 24 Nov 08
'Fish Technology' Draws Renewable Energy From Slow Water Currents
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3vQbIEJ9OIA/081121125604.htm
Slow-moving ocean and river currents could be a new, reliable and affordable alternative energy source. Engineers have made a machine that works like a fish to turn potentially destructive vibrations in fluid flows into clean, renewable power.
Mon, 24 Nov 08
Hairspray Is Linked To Common Genital Birth Defect, Says Study
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hbZ3N1oGE4c/081121081353.htm
Women who are exposed to hairspray in the workplace during pregnancy have more than double the risk of having a son with the genital birth defect hypospadias, according to a new study in the journal Environmental Health Perspectives.
Mon, 24 Nov 08
When It Comes To What's For Dinner, Baboon Society Is No Democracy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PubSgT612UM/081120130529.htm
In decisions about where to eat, baboons don't all have an equal say, according to a new report. Rather, most baboons in a group will follow their leader to a dining spot of his choosing, even if it means a considerably more meager meal for themselves than they could have had otherwise.
Mon, 24 Nov 08
New Technique Eliminates Toxic Drugs In Islet Transplant In Diabetic Mice
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZGW_RiBGYSE/081120122205.htm
Islet cell transplantation is a promising therapy for people with type 1 diabetes, but it requires a regime of powerful immunosuppressive drugs so the immune system won't reject the insulin-producing islets. The drugs raise the risk of infections and cancer and are toxic to the islets themselves. Researchers have developed a new technique that eliminated the need for these drugs. The strategy is a potential therapy for human islet cell transplantation.
Mon, 24 Nov 08
The Network Of Everything: Personal Networks Will Have To Cope With At Least A Thousand Devices
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tzm67s0W6YQ/081117082425.htm
Wireless experts believe that, by 2017, personal networks will have to cope with at least a thousand devices, like laptops, telephones, mp3 players, games, sensors and other technology. To link these devices will require a ‘Network of Everything’. It represents an astonishing challenge, but European researchers believe that they are moving towards the solution.
Mon, 24 Nov 08
Ancient And Modern Plagues Show Common Features
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bYZ3cZd2dgk/081121132928.htm
The Plague of Athens is one of 10 historically notable outbreaks described in an article in The Lancet Infectious Diseases. The phenomenon of widespread, socially disruptive disease outbreaks has a long history prior to HIV/AIDS, severe acute respiratory syndrome, H5N1 avian influenza and other emerging diseases of the modern era, note the authors.
Mon, 24 Nov 08
Mars Express Observes Aurora On The Red Planet
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PNKnEwjLcPI/081121101001.htm
Scientists using ESA's Mars Express have produced the first crude map of aurora on Mars. These displays of ultraviolet light appear to be located close to the residual magnetic fields generated by Mars's crustal rocks. They highlight a number of mysteries about the way Mars interacts with electrically charged particles originating from the Sun.
Mon, 24 Nov 08
New Species Of Ebola Virus Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MnY0q-f9a7c/081120202502.htm
Scientists report the discovery of a new species of Ebola virus, provisionally named Bundibugyo ebolavirus. The virus, which was responsible for a hemorrhagic fever outbreak in western Uganda in 2007, has been characterized by a team of scientists.
Mon, 24 Nov 08
Bee Swarms Follow High-speed 'Streaker' Bees To Find A New Nest
http://feeds.sciencedaily.com/~r/sciencedaily/~3/P8zf8Vd0IyQ/081003081637.htm
How does a swarm of bees find its way to a new nest site when less then 5 percent of the community knows the way? Filming bee swarms as they relocated to new nest site and analyzing the insects' apparently chaotic course, scientists have found that "streaker" bees fly through the swarm at high speed to guide it.
Mon, 24 Nov 08
Soluble Fiber, Antispasmodics And Peppermint Oil Should Be Used To Treat Irritable Bowel Syndrome, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XdDqZa7DuJs/081114081010.htm
Fiber, antispasmodics and peppermint oil are all effective therapies for irritable bowel syndrome and should become first-line treatments, according to a new study.
Mon, 24 Nov 08
Remote Real-time Rendering On-demand -- Now Just A Mouse-click Away
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8Xk5tZX3JsE/081113111339.htm
A new technology has the potential to dramatically change the way that architects operate. Architects and engineers teamed up to develop an on-demand service that allows architects to submit designs for rendering from a remote location at a fraction of the time that would be required on a local PC.
Mon, 24 Nov 08
Ability To Quit Smoking May Depend On ADHD Symptoms, Researchers Find
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9H2Xj3bl4QQ/081121125602.htm
Tobacco use is more prevalent and smoking cessation less likely among persons with attention-deficit-hyperactivity-disorder. In a study of smokers with attention deficit and hyperactivity symptoms, those who exhibited elevated hyperactivity and impulsivity, with or without inattention, showed lower quit rates after eight weeks than those with inattention symptoms alone or those without the ADHD symptoms.
Mon, 24 Nov 08
New Mechanism For Superconductivity?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KxQTARvCvvo/081121132930.htm
Researchers have posited an explanation for superconductivity that may open the door to the discovery of new, unconventional forms of superconductivity. They offer a new explanation for superconductivity in non-traditional materials -- one that describes a potentially new state of matter in which the superconducting material behaves simultaneously as a nonmagnetic material and a magnetic material.
Mon, 24 Nov 08
Brain Abnormalities That May Play Key Role In ADHD
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7-vR6Zx1lNo/081117110938.htm
A new study reveals shape differences in the brains of children with ADHD. Researchers used a new tool, large deformation diffeomorphic mapping, allowing them to examine the shape of the basal ganglia. Boys with ADHD had shape differences and decreased volume of the basal ganglia compared to typically developing children.
Mon, 24 Nov 08
The Lightning Flash Before The Flood
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZdOvGMKeOTM/081120144244.htm
Flash floods are the most common natural disaster in the United States, and because of their unpredictability they’re the leading weather-related cause of death for Americans. They usually arrive with little or no warning, but researchers are now trying to predict where and when they will occur ― using lightning.
Mon, 24 Nov 08
Tissue Analyses Indicate Survival Benefits For Some Lung Cancer Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cS61z4iE4KA/081113091617.htm
Taking small tissue samples from patients with lung cancer and examining them under a microscope, a procedure called histology, is now being utilized to better tailor the chemotherapy treatments to improve survival in some patients with non-small cell lung cancer, according to a study presented at the 2008 Chicago Multidisciplinary Symposium in Thoracic Oncology, cosponsored by ASTRO, ASCO, IASLC and the University of Chicago.
Mon, 24 Nov 08
Seismometer Able To Measure Earth Tremors Over Longer Periods Is Unveiled
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UWTUm6hKdpw/081113101426.htm
Researchers have developed an ocean bed seismometer that operates using a data acquisition and storage system based on CompactFlash memory cards such as those used in commercial digital cameras. The machine’s low energy consumption means it can operate independently for two months at depths of up to 6,000 metres.
Mon, 24 Nov 08
Beauty Is Truth In Mathematical Intuition: First Empirical Evidence
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1KUp28LkVUw/081120073130.htm
First empirical evidence for the use of beauty as truth in mathematical intuition reported. French mathematician Jacques Hadamard wrote in 1954 in his famous book “The Psychology of Invention in the Mathematical Field" that a sense of beauty seems to be almost the only useful “drive” for discovery in mathematics. However, until now evidence has been anecdotal, and the nature of the beauty-truth relationship remained a mystery.
Mon, 24 Nov 08
Can China's Future Earthquakes Be Predicted?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Wyu5YMQuw-M/081118122103.htm
On May 12, 2008, at 2:28 p.m., China's Szechwan province changed forever. In the space of 90 seconds, an earthquake equivalent to 1,200 H-bombs pulverized the earth's crust for more than 280 kilometers. Entire cities disappeared and eight million homes were swallowed up. This resulted in 70,000 deaths and 20,000 missing. According to one researcher, this tragedy could have been avoided. "There hasn't been one earthquake in Szechwan province for 300 years. Chinese authorities thought the fault was dead," he says.
Mon, 24 Nov 08
Cooling The Brain Prevents Cell Death In Young Mice Exposed To Anesthesia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OOKfK2_e9BU/081117121224.htm
New research suggests cooling the brain may prevent the death of nerve cells that has been observed in infant mice exposed to anesthesia. The effects of anesthesia on human infants and young children have been debated among neuroscientists, but growing evidence suggests exposure to anesthetic drugs during brain development may contribute to behavioral and developmental delays.
Mon, 24 Nov 08
Networks Of Small Habitat Patches Can Preserve Urban Biodiversity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nS381LRXiCE/081113080004.htm
Sets of small and seemingly insignificant habitat patches that are within reach for mobile species may under certain circumstances, as a group, provide an acceptable alternative to larger and contiguous habitats. This finding can make preservation of important ecological functions possible even in urban and other heavily exploited areas.
Mon, 24 Nov 08
Gastrointestinal Stromal Tumors: Study May Result In More Targeted Drugs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MDncRnqiwJA/081112160858.htm
There is strong evidence that patients can have varying clinical responses to medications depending on the specific makeup of their cancer. A new study which focused on gastrointestinal stromal tumors, also called GIST, found that the genetic variations in their disease appear to determine which medications will be most effective.
Mon, 24 Nov 08
Scientists Study Cracks In Brittle Materials
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Z_3gQ4z7CsQ/081120144242.htm
The Naval Research Laboratory is part of an international team of scientists that is learning more about how cracks form in brittle materials. The team used both computer modeling and experimentation to investigate how cracks grow at low speeds in silicon. This information has potential applications in the development of a variety of materials ranging from armor to machine parts.
Mon, 24 Nov 08
Intervention Program Boosts Survival In Breast Cancer Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0f4ykQx9wTc/081117082040.htm
A new study provides the best evidence to date that a psychological intervention program designed for breast cancer patients not only improves their health, it actually increases their chance of survival. Researchers here found that patients participating in an intervention program reduced their risk of dying of breast cancer by 56 percent after an average of 11 years.
Mon, 24 Nov 08
Genes Associated With Fat Metabolism Could Increase Kidney Cancer Risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/plurURlAfmc/081117103641.htm
A team of international scientists has identified three genes associated with the body's processing of fats that may increase susceptibility to kidney cancer.
Mon, 24 Nov 08
Hope For Treating Relapse To Methamphetamine Abuse
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UMbExLihliw/081113091625.htm
A new study suggests that vigabatrin blocks drug-seeking behavior in animals previously trained to associate methamphetamine with a particular environment.
Mon, 24 Nov 08
Safety In Numbers For Community Hospitals Performing Emergency Angioplasty
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4Du4yHdcdjk/081112194911.htm
Heart experts at Johns Hopkins have evidence that life-saving coronary angioplasty at community hospitals is safer when physicians and hospital staff have more experience with the procedure.
Mon, 24 Nov 08
Pharmaceutical Testing: Test Identifies Toxic Platinum And Palladium Without Time-consuming Sample Pretreatment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uFlpRiqGyfU/081114184628.htm
The painstaking process of detecting toxic species of platinum and palladium mixed in with the form of platinum essential to certain pharmaceuticals could be reduced to one simple step, researchers report.
Mon, 24 Nov 08
Money Motivates Doctors To Reduce Ethnic Differences In Heart Disease Treatments, UK Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qeE3lE0NBGg/081117103723.htm
Financial incentives for doctors can improve the management of coronary heart disease and reduce ethnic differences in quality of and access to care, according to public health experts in the UK.
Mon, 24 Nov 08
Stomach Ulcer Bug Causes Bad Breath
http://feeds.sciencedaily.com/~r/sciencedaily/~3/x981bcj173A/081123222846.htm
Bacteria that cause stomach ulcers and cancer could also be giving us bad breath, according to research published in the Journal of Medical Microbiology. For the first time, scientists have found Helicobacter pylori living in the mouths of people who are not showing signs of stomach disease.
Mon, 24 Nov 08
Scientists Discover 21st Century Plague
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rcqmR1R3NE8/081123222844.htm
Bacteria that can cause serious heart disease in humans are being spread by rat fleas, sparking concern that the infections could become a bigger problem in humans. New research published in the Journal of Medical Microbiology suggests that brown rats, the biggest and most common rats in Europe, may now be carrying the bacteria.
Sun, 23 Nov 08
Breakthrough Technique Unlocks Secret Of Plasmas
http://feeds.sciencedaily.com/~r/sciencedaily/~3/I1w_qlhz9RY/081121140526.htm
Researchers have developed a technique that brings scientists a big step closer to unlocking the secrets of the most abundant form of matter in the universe.
Sun, 23 Nov 08
How Red Wine Compounds Fight Alzheimer's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TiqRsXuHCso/081121092454.htm
Scientists have discovered the mechanism behind how compounds in red wine called polyphenols slow the cognitive declines of Alzheimer's.
Sun, 23 Nov 08
From Genes To Farmers' Fields: New 'Waterproof' Rice Developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QZA2ezMfWE4/081121092458.htm
"Waterproof" versions of popular varieties of rice, which can withstand two weeks of complete submergence, have passed tests in farmers' fields with flying colors. Several of these varieties are now close to official release by national and state seed certification agencies in Bangladesh and India, where farmers suffer major crop losses because of flooding of up to 4 million tons of rice per year. This is enough rice to feed 30 million people.
Sun, 23 Nov 08
Adults Need Vaccines, Medical Societies Urge
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TC_ACR0Vfc0/081119120151.htm
The American College of Physicians and the Infectious Diseases Society of America have released a joint statement on the importance of adult vaccination against an increasing number of vaccine-preventable diseases. The statement has been endorsed by 17 other medical societies representing a range of practice areas.
Sun, 23 Nov 08
Ultra-wideband Radio Rides A Beam Of Light
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kH8oaZDeeGg/081121081049.htm
Multiple high-definition videos and other data-rich services may soon stream through homes, offices, ships and planes via new hybrid optical/ultra-wideband-radio systems developed by European researchers.
Sun, 23 Nov 08
Pregnant Women Who Do Aquarobics Have Easier Deliveries, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/q0WHwNRYTdk/081120202500.htm
A course of water aerobics classes has been shown to reduce the amount of pain-killing medication women request during labor. Research shows that, as well as being safe, the gentle exercise has the benefit of making it easier to give birth.
Sun, 23 Nov 08
Simple Eyes Of Only Two Cells Guide Marine Zooplankton To The Light
http://feeds.sciencedaily.com/~r/sciencedaily/~3/F1UDVrFYwqo/081119140705.htm
Scientists now explain the remarkable ability of marine zooplankton to swim towards light. A new study reveals how simple eyes of only two cells, sense the direction of light and guide movement towards it. The research also provides new insights into what the first eyes in animal evolution might have looked like and what their function was.
Sun, 23 Nov 08
Lactic Acid Found To Fuel Tumors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/09B0KBvRQH4/081120171325.htm
A team of researchers has found that lactic acid is an important energy source for tumor cells. In further experiments, they discovered a new way to destroy the most hard-to-kill, dangerous tumor cells by preventing them from delivering lactic acid.
Sun, 23 Nov 08
Drug Addiction: Environmental Conditions Play Major Role In Effective Treatment And Preventing Relapses, Animal Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_IHtNL3TWPo/081114190439.htm
Environmental conditions play a major role in treating drug addiction and in preventing relapses, according to new research. For the first time, researchers have shown that positive and stimulating environmental conditions make it easier to treat cocaine addiction.
Sun, 23 Nov 08
New Technologies Gearing Up To Meet Rising Demand For Vital Malaria Drugs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RS6-A0PvoCw/081119084845.htm
Three emerging technologies have the potential to significantly improve supplies of drugs to combat malaria, according to a new report.
Sun, 23 Nov 08
Fluorescence Used To Develop Method For Detecting Mercury In Fish
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xfXSuyQvAJE/081118150645.htm
Researchers have developed a simple and quick method for detecting mercury in fish and dental samples, two substances at the center of public concern about mercury contamination. The technique involves a fluorescent substance that glows bright green when it comes into contact with oxidized mercury.
Sun, 23 Nov 08
Behavior Very Similar In Distracted Humans And Rats On Neurotransmitter Blocker
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5v759Wj3Xtc/081118122150.htm
When picking through a basket of fruit, it doesn't seem very difficult to recognize a green pear from a green apple. This is easy, thanks to "feature binding" -- a process by which our brain combines all of the specific features of an object and gives us a complete and unified picture of it.
Sun, 23 Nov 08
Could Marijuana Substance Help Prevent Or Delay Memory Impairment In The Aging Brain?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RP3AssoXVcE/081119120141.htm
Scientists are finding that specific elements of marijuana can be good for the aging brain by reducing inflammation there and possibly even stimulating the formation of new brain cells. Some research suggests that developing a legal drug that contains certain properties similar to those in marijuana might help prevent or delay the onset of Alzheimer's disease. Though the exact cause of Alzheimer's remains unknown, chronic inflammation in the brain is believed to contribute to memory impairment.
Sun, 23 Nov 08
New Approach To Screen Individuals For Early Alzheimer's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pINoVp5v4wM/081118150643.htm
With millions of baby boomers entering late adulthood, the number of patients with Alzheimer's disease is expected to drastically rise over the next several decades. A team of national researchers, has developed a rapid screening test to detect mild cognitive impairment, often the earliest stage of AD.
Sun, 23 Nov 08
Glacial Erosion Changes Mountain Responses To Plate Tectonics
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cJBGb_Hi2F0/081114201603.htm
Intense glacial erosion has not only carved the surface of the highest coastal mountain range on earth, the spectacular St. Elias range in Alaska, but has elicited a structural response from deep within the mountain.
Sun, 23 Nov 08
Ideal Time For Stem Cell Collection Defined For Parkinson's Disease Therapy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ooz52uC_vpo/081119120145.htm
Researchers have identified a stage during dopamine neuron differentiation that may be an ideal time to collect human embryonic stem cells for transplantation to treat Parkinson's disease, according to new research.
Sun, 23 Nov 08
Can Renewable Energy Be Sustained?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uAGgFTy1LCM/081118122055.htm
Engineers and entrepreneurs are rushing to explore alternative sources of efficient and renewable energy. One professor has strong words of caution as projects involving wind farms and photovoltaic cells proliferate. Coordination is lacking in development of alternative power sources, he warns.
Sun, 23 Nov 08
Methamphetamine Abuse Linked To Underage Sex, Smoking And Drinking
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BV1xj_6YygY/081118200554.htm
Teens who have never done drugs, but engage in other risky behaviours such as drinking, smoking and being sexually active, are more likely to use crystal meth, medical researchers have concluded.
Sun, 23 Nov 08
Complex Systems Science: How Do Math And Intuition Help Us Understand Whole Systems?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BUFvX2wwBsM/081122092708.htm
The human brain may be the ultimate complex system, but other examples appear everywhere. Take army ants. Despite their name, they have no general, and their queen sends out no instructions. No ant is aiming to get across that gully, and there is no blueprint or traffic light. Yet millions of ants, following the same instinctive rules of individual behavior, can build bridges with their bodies and forage for food along vast efficient highways.
Sun, 23 Nov 08
Coastal Erosion On Grand Isle, Louisiana, Occurring Rapidly
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gVbh4ZvuGys/081122091319.htm
Students measuring the loss of sand on the barrier island of Grand Isle, La., are seeing coastal erosion happen before their eyes. On spits of land on the edge of the Gulf of Mexico students are observing rapid land loss in southern Louisiana.
Sun, 23 Nov 08
Mercury Tarnishes Louisiana Fish
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dP9egKmxvT4/081122090900.htm
Researchers are fighting to remove mercury from the environment. Mercury-containing pressure gauges in the natural gas fields, coal-fired power plants and chlorine plants are among the sources of mercury that concern scientists.
Sun, 23 Nov 08
Challenges To Environmentally Responsible Energy Use In Today's Society
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ot5vg1cTwX4/081122090437.htm
Our society is rushing to escape the energy culture as we know it, in order to remake it as we don't know it. The irony is that a marginal amount of planning -- continual improvement in mileage standards, closing of the loophole in those standards that exempted light trucks, steady federal investment in renewable energy -- might have alleviated the energy and climate crunch facing us today.
Sun, 23 Nov 08
When Good Maples Go Red: Why Leaves Change Color In The Fall
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7BrpjEYr6jU/081122084655.htm
On a hushed autumn morning, when leaves have ripened to the fall, who hasn't stood under a flaming maple and wondered why it goes red?
Sun, 23 Nov 08
From Deep In Lake Ontario, Comes A Natural Coolant
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Fg8-tfkPY5M/081122084057.htm
Cold, clean water from Lake Ontario has the potential to act as a natural coolant for buildings 30 miles away in Syracuse, N.Y., while reducing emissions of greenhouse gasses, substantially cutting energy costs, and aiding in the restoration of the long-polluted Onondaga Lake, according to a team of scientists.
Sun, 23 Nov 08
Earthworms’ Underground Invasion Threatens Forest Sustainability
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3nSXr2iEjJ4/081122083747.htm
Earthworms have long been considered a friend to farmers and home gardeners, playing a vital role in soil quality. However, recent studies have shown that glaciated forests in North America --- forests that evolved without native earthworms -- now face the invasion of European earthworms from agriculture and fishing.
Sun, 23 Nov 08
Climate Change May Boost Exposures To Harmful Pollutants
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qTjvAM-0wlY/081122083325.htm
A review of studies projecting the impact of climate change on air quality, including effects on morbidity and mortality, indicates that adverse health effects will likely rise with changes in pollutant creation, transport, dispersion, and deposition. However, reducing greenhouse gas emissions could go far in mitigating adverse effects.
Sun, 23 Nov 08
How Global Warming Will Affect U.S. Beaches, Coastline
http://feeds.sciencedaily.com/~r/sciencedaily/~3/m7dERmf0fXA/081122083051.htm
Scientists are finding that sea level rise will have different consequences in different places but that they will be profound on virtually all coastlines. Land in some areas of the Atlantic and Gulf coasts of the United States will simply be underwater. On the West Coast, with its different topography and different climate regimes, problems will likely play out differently. The scientists' most recent conclusions, even when conservative scenarios are involved, suggest that coastal development, popular beaches, vital estuaries, and even California's supply of fresh water could be severely impacted by a combination of natural and human-made forces.
Sun, 23 Nov 08
Pavement Sealcoat Linked To Urban Lake Contamination In The Central And Eastern United States
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DjeDsb_WEZA/081122075126.htm
Dust collected from coal-tar sealcoated parking lots in Central and Eastern U.S. cities contains concentrations of polycyclic aromatic hydrocarbons (PAHs) that are about 1,000 times greater than levels found in Western cities where coal-tar sealcoat is less commonly used, according to a new study.
Sat, 22 Nov 08
New Nano Satellite Mission To Examine Link Between Lightning And Terrestrial Gamma Ray Flashes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Mr425D-NMwI/081117131715.htm
Massive energy releases occur every day in the upper reaches of Earth's atmosphere. Lightning may give rise to these bursts of radiation. However, unlike the well-known flashes of light and peals of thunder familiar to Earth-dwellers, these energy releases are channeled upward and can be detected only from space. Our atmosphere protects us from the effects of this radiation, but the mechanisms at work can impact Earth's upper atmosphere and its space environment.
Sat, 22 Nov 08
Blood Component That Turns Anthrax Bacteria Virulent Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8WjaUhNkxFE/081121151721.htm
Scientists have discovered the key chemical that signals Bacillus anthracis, the bacterium that causes anthrax, to become lethal. This finding opens up new avenues of exploration for the development of treatments for bacterial infections.
Sat, 22 Nov 08
Is A Stradivarius Violin Better Than Other Violins?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JjF4rkcEABk/081108164152.htm
Some sell for more than $3.5 million. Only 700 of them exist, and they're stored in vaults, frequently stolen and often counterfeited. The object in question? Stradivarius violins, constructed by famed Italian instrument-maker Antonio Stradivari between 1680 and 1720. Treasured for possessing sublime acoustic properties, these rare instruments have spawned dozens of theories attempting to explain their legendary tone, and luthiers, makers of stringed instruments, are still trying to reproduce it. The question remains: Are Stradivarius violins worth all the fuss?
Sat, 22 Nov 08
Isolated Breast Cancer Cells In Sentinel Lymph Node Associated With Non-Sentinel Lymph Node Metastases
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DCBRf57rsnY/081111200400.htm
Women who are found to have isolated breast cancer cells upon sentinel lymph node biopsy have a risk of having metastases in other lymph nodes.
Sat, 22 Nov 08
Snow In The Arctic: An Ingredient In A Surprising Chemical Cocktail
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kH8NUnCg-BE/081107072003.htm
In the Arctic in spring, the snow cover gives off nitrogen oxides. This phenomenon, the extent of which had not been previously realized, is the source of one third of the nitrates present in the Arctic atmosphere, according to researchers. Scientists made a quantitative study of the origin and evolution of nitrogen compounds in the Arctic atmosphere, in order to understand their environmental impact on this region.
Sat, 22 Nov 08
Crafting Your Image For Your 1,000 Friends On Facebook Or MySpace
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ASwLFNMqRJY/081118200556.htm
Students are creating idealized versions of themselves on social networking websites -- Facebook and MySpace are the most popular -- and using these sites to explore their emerging identities, psychologists report. Parents often understand very little about this phenomenon, they say.
Sat, 22 Nov 08
Forgotten But Not Gone: How The Brain Re-learns
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hM6PH0Ja5jo/081117110834.htm
Thanks to our ability to learn and to remember, we can perform tasks that other living things can not even dream of. However, we are only just beginning to get the gist of what really goes on in the brain when it learns or forgets something. What we do know is that changes in the contacts between nerve cells play an important role. But can these structural changes account for that well-known phenomenon that it is much easier to re-learn something that was forgotten than to learn something completely new?
Sat, 22 Nov 08
Widely Used Cancer Drug Associated With Significantly Increased Risk Of Blood Clots
http://feeds.sciencedaily.com/~r/sciencedaily/~3/x9ZaOPXu_Dg/081118161236.htm
The use of the cancer drug bevacizumab is associated with an increased risk of venous thromboembolism (blood clots in the deep veins of the legs or in the lungs), according to a new article.
Sat, 22 Nov 08
Evolution Of The Visual System Is Key To Abstract Art
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ozjAalmv3eY/081117082246.htm
Famous works of abstract art achieve popularity by using shapes that resonate with the neural mechanisms in the brain linked to visual information, a psychologist has discovered.
Sat, 22 Nov 08
Increased Nonfasting Triglyceride Levels Associated With Higher Risk Of Stroke
http://feeds.sciencedaily.com/~r/sciencedaily/~3/T3pq8rfP9Tc/081111182902.htm
Elevated nonfasting triglyceride levels, previously associated with an increased risk for heart attack, also appear to be associated with an increased risk for ischemic stroke.
Sat, 22 Nov 08
Methanization On The Farm: Integrating Nitrogen Treatment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Jp6Y4648yMM/081106122825.htm
In Rennes, studies are being conducted to combine livestock liquid manure methanization processes with a biological nitrogen removal process. The expected benefits are measured in terms of energy savings and preservation of river water quality.
Sat, 22 Nov 08
Oh, What A Feeling! Regaining Ability To Interpret Emotions After Severe Brain Injury
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cghfYKsDDWU/081120103800.htm
People who have lost the ability to interpret emotion after a severe brain injury can regain this vital social skill by being re-educated to read body language, facial expressions and voice tone in others, according to a new study.
Sat, 22 Nov 08
'Powerhouses' From Living Cells -- Mitochondria -- Power New Explosives Detector
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nA02DoBgs4E/081117095346.htm
Researchers in Missouri have borrowed the technology that living cells use to produce energy to develop a tiny, self-powered sensor for rapid detection of hidden explosives. The experimental sensor, about the size of a postage stamp, represents the first of its kind to be powered by mitochondria, the microscopic "powerhouses" that provide energy to living cells, the researchers say.
Sat, 22 Nov 08
Does Growth Hormone Drug Slow Alzheimer's Disease?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VH0tExMqvHM/081117192902.htm
A new study shows that a drug that increases the release of growth hormone failed to slow the rate of progression of Alzheimer's disease in humans.
Sat, 22 Nov 08
Burying Greenhouse Gases: New Tool Could Aid Safe Underground Storage Of Carbon Dioxide
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CqXY4JDy3QY/081117131711.htm
To prevent global warming, researchers and policymakers are exploring a variety of options to significantly cut the amount of carbon dioxide that reaches the atmosphere. One possible approach involves capturing greenhouse gases such as carbon dioxide at the source, then injecting them underground. Now engineers have come up with a new software tool to determine how much carbon dioxide can be sequestered safely in geological formations.
Sat, 22 Nov 08
Calcium Plus Vitamin D Supplementation Is Not Associated With A Reduced Breast Cancer Risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Z7Ev1JvF6us/081111182852.htm
Taking calcium and vitamin D supplements does not reduce breast cancer incidence in postmenopausal women, according to data from a randomized, doubled-blind, placebo-controlled trial published in the Journal of the National Cancer Institute.
Sat, 22 Nov 08
Identifying Invasive Australian Pine Trees In Florida
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Fok_7ah6XuQ/081031213814.htm
Invasive Australian pines that crowd out native plants in Florida present a particular conundrum. In the Sunshine State, it can be very difficult to tell the look-alike Casuarina species and subspecies from one another.
Sat, 22 Nov 08
Race Guides Neighborhood Evaluation, Study Says
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lBTiBRmYWCw/081120144238.htm
Race is a powerful determinant of how whites regard a neighborhood, according to a recent study. The investigation indicates that neighborhood evaluations are socially constructed and contribute to ongoing racial segregation.
Sat, 22 Nov 08
Iconic Rings And Flares Of Galaxies Created By Violent, Intergalactic Collisions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HrXs0fFbE_c/081121140528.htm
The bright pinwheels and broad star sweeps iconic of disk galaxies such as the Milky Way might all be the shrapnel from massive, violent collisions with other galaxies and galaxy-size chunks of dark matter. New findings challenge a longstanding theory.
Sat, 22 Nov 08
New Cause Of Fatal Brain Injury From Acute Viral Meningitis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zGEN0iwDjeY/081117131719.htm
What was once thought to be the culprit responsible for fatal brain damage in acute viral meningitis has now been found to be only an accomplice, say researchers at the Scripps Research Institute.
Sat, 22 Nov 08
Urgent Action On International Coral Reef Crisis Urged
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qIp2hrd0Wk0/081110112200.htm
Coral reef scientists and policy makers from the world's most prominent coral reef nations are meeting in Australia this week to develop urgent action plans to rescue the world's richest center of marine biodiversity from gradual decline.
Sat, 22 Nov 08
Visual Impairment: Promising Treatment For Anti-VEGF And Retinopathy Of Prematurity Described
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TZi9N7_c6JA/081111073843.htm
A clinical study offers a promising new treatment for retinopathy of prematurity. ROP is often difficult to resolve using current treatments and can result in permanent, severe visual impairment in premature infants when treatment is unsuccessful. ROP encompasses a series of damaging changes in the retina, the area at the back of the eye that relays images to the brain's visual center.
Sat, 22 Nov 08
DVR Fast-forwarding May Not Be Fatal To TV Advertising
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CmRQBHYRVcY/081103102314.htm
With the advent of digital video recorders and products like TiVo, viewers can fast-forward past commercials while playing back their favorite shows. Researchers found that viewers can retain valuable brand information even from an ad glimpsed for a fraction of its actual length. However, they also found that ads with brand information located on the periphery of the TV screen are of virtually no value.
Sat, 22 Nov 08
Non-white Med Students Reject Therapies Associated With Their Culture, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cPodHqH25jQ/081117153205.htm
Non-white medical students are more likely to embrace orthodox medicine and reject therapies traditionally associated with their cultures. That is one finding from an international study that measures the attitudes of medical students toward complementary and alternative medicine (CAM). While seemingly counter-intuitive, white students view CAM more favorably than their non-white counterparts, the study authors say.
Sat, 22 Nov 08
Children Of Centenarians Live Longer, Have Lower Risk Of Heart Disease, Stroke, Diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rMJC2FQtXx0/081120122159.htm
Centenarian offspring (children of parents who lived to be at least 97 years old) retain important cardiovascular advantages from their parents compared to a similarly-aged cohort.
Sat, 22 Nov 08
Research Finds Way To Double Rice Crops In Drought-stricken Areas
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Rgse6FimwgU/081120162847.htm
New research has yielded a way to double the output of rice crops in some of the world's poorest, most distressed areas.
Sat, 22 Nov 08
Calorie Restriction And Exercise Show Breast Cancer Prevention Differences In Postmenopausal Women
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lyogGegQa6Y/081118150628.htm
Scientists have identified pathways by which a reduced-calorie diet and exercise can modify a postmenopausal woman's risk of breast cancer.
Sat, 22 Nov 08
New Method For Tracing Metal Pollution Back To Its Sources
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KppTbfaCKSA/081120073121.htm
A new way of pinpointing where zinc pollution in the atmosphere comes from could improve pollution monitoring and regulation, according to new research.
Sat, 22 Nov 08
Uncertainty Can Be More Stressful Than Clear Negative Feedback
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TAwW9n3lngE/081120103804.htm
We are faced with uncertainty every day. Will our investments pay off? Will we get the promotions we are hoping for? When faced with the unknown, most people experience some degree of anxiety and discomfort. Exactly how much anxiety someone experiences during uncertain times depends on his or her personality profile.
Sat, 22 Nov 08
Beta Pictoris Planet Finally Imaged?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/twihsbDbSY0/081121081105.htm
A team of French astronomers have discovered an object located very close to the star Beta Pictoris, and which apparently lies inside its disc. With a projected distance from the star of only 8 times the Earth-Sun distance, this object is most likely the giant planet suspected from the peculiar shape of the disc and the previously observed infall of comets onto the star. It would then be the first image of a planet that is as close to its host star as Saturn is to the Sun.
Sat, 22 Nov 08
Simple Blood Test For Colon Cancer: New Early-warning Test Detects Polyps Before Cancer Sets In
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_jzergxqudw/081120144240.htm
Researchers in Israel have developed a simple early-warning test that can detect colon cancer in the blood. Using biomarkers, it is the first test on the market that can detect cells of colon polyps the precursors to colon cancer in the blood, with a very high degree of sensitivity and accuracy.
Sat, 22 Nov 08
Converting Sunlight Into Electricity: European Project Breaks Efficiency Record
http://feeds.sciencedaily.com/~r/sciencedaily/~3/so94na0rDL0/081120162704.htm
Scientists have developed photovoltaic multi-junction solar cells which are able to convert 39.7% of the energy of sun light into electricity. This is the highest percentage ever reached in Europe, according to researchers.
Sat, 22 Nov 08
Male Birth Defect Associated With Certain Genetic Mutations, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_-iCQjW2iuc/081118161243.htm
A small percentage of males born with cryptorchidism (failure of one or both testicles to descend into the scrotum), the most frequent congenital birth defect in male children, are more likely to have genetic mutations, including for a syndrome that is a common genetic cause of infertility, according to new study.
Sat, 22 Nov 08
Quantum Computers Could Excel In Modeling Chemical Reactions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/K6rhgekfR68/081120130601.htm
Quantum computers would likely outperform conventional computers in simulating chemical reactions involving more than four atoms, according to scientists. Such improved ability to model and predict complex chemical reactions could revolutionize drug design and materials science, among other fields.
Sat, 22 Nov 08
Research Sheds Light On Benefits Of Multiple Mates
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZS-d_sh_FE8/081120144236.htm
New research could explain why females of many species have multiple partners. Females of most species, including many mammals, mate with multiple partners. The driving forces for this practice, known as 'polyandry', have been a mystery for evolutionary biologists for decades. This research suggests that polyandry could be the result of females adapting to avoid producing offspring carrying selfish genetic elements that reduce male fertility.
Fri, 21 Nov 08
Concealed Glaciers Discovered On Mars At Mid-latitudes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6uPTXashir8/081120144228.htm
Vast Martian glaciers of water ice under protective blankets of rocky debris persist today at much lower latitudes than any ice previously identified on Mars, says new research using ground-penetrating radar on NASA's Mars Reconnaissance Orbiter. The discovery is an encouraging sign for scientists searching for life beyond Earth. The water ice might also provide a useful resource for human explorers visiting the red planet.
Fri, 21 Nov 08
Brain Reorganizes To Adjust For Loss Of Vision
http://feeds.sciencedaily.com/~r/sciencedaily/~3/j2r7oNLtKuo/081120130541.htm
A new study shows that when patients with macular degeneration focus on using another part of their retina to compensate for their loss of central vision, their brain seems to compensate by reorganizing its neural connections. Age--related macular degeneration is the leading cause of blindness in the elderly. The study appears in the journal Restorative Neurology and Neuroscience.
Fri, 21 Nov 08
Shellfish Inspire New Adhesives
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6gsZ1rV4dAg/081117110836.htm
Adhesive shellfish proteins bind regardless of how many binding elements they contain. This has potential for the development of new kinds of binding agents.
Fri, 21 Nov 08
Why Only Some Former Smokers Develop Lung Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8O6SsShHh6s/081117103644.htm
Canadian researchers are trying to answer why some smokers develop lung cancer while others remain disease free, despite similar lifestyle changes.
Fri, 21 Nov 08
Extreme Makeover: Photos Realistically Embedded Within Videos
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uv0U_-ta-yY/081114091826.htm
Stanford artificial intelligence researchers have developed software that makes it easy to reach inside an existing video and place a photo on the wall so realistically that it looks like it was there from the beginning. The photo is not pasted on top of the existing video, but embedded in it. It works for videos as well; you can play a video on a wall inside your video.
Fri, 21 Nov 08
Brain Compound 'Throws Gasoline Onto The Fire' Of Schizophrenia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/L21nRQ02frg/081118161247.htm
New research has traced elevated levels of a specific compound in the brain to problem-solving deficits in patients with schizophrenia. The finding suggests that drugs used to suppress the compound, called kynurenic acid, might be an important supplement to antipsychotic medicines, as these adjuncts could be used to treat the disorder's most resistant symptoms -- cognitive impairments.
Fri, 21 Nov 08
Pluripotent Stem Cells Shown To Generate New Retinal Cells Necessary For Vision, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/W1_-ybjuJ5M/081120210853.htm
Pluripotent stem cells -- those, like embryonic stem cells, that give rise to almost every type of cell in the body -- can be converted into the different classes of retinal cells necessary for vision, according to a new study.
Fri, 21 Nov 08
'4-D' Microscope Revolutionizes The Way We Look At Nano World
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FQWDm6KXLhA/081120144234.htm
More than a century ago, the development of the earliest motion picture technology made what had been previously thought "magical" a reality: capturing and recreating the movement and dynamism of the world around us. A breakthrough technology based on new concepts has now accomplished a similar feat, but on an atomic scale by allowing, for the first time, the real-time, real-space visualization of fleeting changes in the structure and shape of matter barely a billionth of a meter in size.
Fri, 21 Nov 08
Misreading Of Damaged DNA May Spur Tumor Formation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hSeMDV3iprk/081120130604.htm
Cells can turn on tumor-promoting growth circuits by falsely reporting critical genetic information during the process of transcription: making RNA from DNA. Damage to the DNA making up a gene can lead to a misreading of the gene as it is made into RNA, a process called transcriptional mutagenesis. Transcriptional mutagenesis could represent an additional way DNA damage contributes to tumor formation.
Fri, 21 Nov 08
Birds Singing In Slow Motion Help Reveal Brain Locations Responsible For Timing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sW2k2URYDbU/081117134339.htm
As anyone who watched the Olympics can appreciate, timing matters when it comes to complex sequential actions. It can make a difference between a perfect handspring and a fall, for instance. But what controls that timing? Scientists are closing in on the brain regions responsible, thanks to some technical advances and some help from songbirds.
Fri, 21 Nov 08
Faster Test For Food Protein That Triggers Celiac Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wTcn-IqWj-M/081117095103.htm
Researchers are reporting development of a faster test for identifying the food protein that triggers celiac disease, a difficult-to-diagnose digestive disease involving the inability to digest protein called gluten that occurs in wheat, oats, rye, and barley. The finding could help millions of people avoid diarrhea, bloating, and other symptoms that occur when they unknowingly eat foods containing gluten.
Fri, 21 Nov 08
Rock Avalanches And Landslides: Modeling When The Mountain Slides Down Into The Valley
http://feeds.sciencedaily.com/~r/sciencedaily/~3/O4VGvlhqHGc/081117082239.htm
Rock avalanches and landslides, rock falls and slope slips are all contained in the concept of mass movements. The ever more intensive usage of the mountainous regions and the climate change are some of the causes for these natural erosion processes from high alpine regions to the hill country, and they are not insignificant causes. Engineering geologists are modeling mass movements with specially adapted computer programs. Their know-how is helpful for the risk assessment of imminent landslides and slope slips.
Fri, 21 Nov 08
Stress Hinders Rats' Decision-making Abilities
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Or9riGqJtfQ/081118150635.htm
A single exposure to uncontrollable stress impairs decision making in rats for several days, making them unable to reliably seek out the larger of two rewards.
Fri, 21 Nov 08
Pure Insulin-producing Cells Produced In Mice
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oz7_LduLCAE/081120130539.htm
Researchers have developed an unlimited number of pure insulin-producing cells from mouse embryonic stem cells. The cells, which have the same sub-cellular structures as the insulin-producing cells naturally found in the pancreas, were highly effective in treating diabetes in the mouse model.
Fri, 21 Nov 08
Link Between Nicotine Addiction And Autism Found
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eSsVc6we0lk/081117103651.htm
Scientists have identified a relationship between two proteins in the brain that has links to both nicotine addiction and autism. The finding has led to speculation that existing drugs used to curb nicotine addiction might serve as the basis for potential therapies to alleviate the symptoms of autism. The discovery identified a defining role for a protein made by the neurexin-1 gene, which is located in brain cells and assists in connecting neurons as part of the brain's chemical communication system.
Fri, 21 Nov 08
Healthful Plant Nutrients Also Found In Meat And Milk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dMcGk6gA4RU/081117091618.htm
Counterintuitive as it may seem, those healthful phytoestrogen nutrients that consumers usually associate with fruits and vegetables also exist in foods of animal origin. After all, "phyto" means "plant." Now the first comprehensive study of phytoestrogen content in foods has identified the best sources of these nutrients.
Fri, 21 Nov 08
Cases Of Extensively Drug-resistant TB Declining Each Year In The US, But New Cases Still
http://feeds.sciencedaily.com/~r/sciencedaily/~3/T0Yvx_1PNgU/081111182900.htm
A new report suggests that the number of cases of extensively drug-resistant tuberculosis in the U.S. has declined in the past fifteen years, but new cases continue to be reported. Researchers note the decrease in the number of XDR-TB cases coincides with improved TB and HIV/AIDS control.
Fri, 21 Nov 08
Elderly People Require Better Fire Prevention, Report Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0rJu7fQTrT4/081117082237.htm
If you are over seventy years old, your chances of dying in a fire at home are four times as high as they are for the rest of the population. It is also a fact that half of all women who die in house fires are 70 or older. These are among the results of a report from SINTEF Norwegian Fire Laboratories.
Fri, 21 Nov 08
Bottoms Up: Individualists More Likely To Be Problem Drinkers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/m-jWhFHpROc/081117121235.htm
What makes residents of certain states or countries more likely to consume more alcohol? According to a new study in the Journal of Consumer Research, high levels of individualism lead to more problem drinking.
Fri, 21 Nov 08
Researchers Make New Electronics -- With A Twist
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Q4GuRWzk8Iw/081119171324.htm
Scientists have made electronics that can bend. They've made electronics that can stretch. And now, they've reached the ultimate goal -- electronics that can be subjected to any complex deformation, including twisting. Researchers have improved their so-called "pop-up" technology to create circuits that can be twisted. Such electronics could be used in places where flat, unbending electronics would fail, like on the human body.
Fri, 21 Nov 08
Dangerous 'Two-faced' Protein Crucial To Breast Cancer Spread And Growth Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NfZKVB3Vswc/081117091620.htm
Two critical properties of cancer cells are their ability to divide without restraint and to spread away from the primary tumor to establish new tumor sites. Now, researchers have found a protein they say acts as a deadly master switch, both freeing cancer cells from a tumor while ramping up new growth.
Fri, 21 Nov 08
New Life Beneath Sea And Ice
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Z7YeKsqoYAk/081117103653.htm
Scientists have long known that life can exist in some very extreme environments. But Earth continues to surprise us.
Fri, 21 Nov 08
Diuretic Reduces Risk For A Type Of Heart Failure That Is More Common Among Women, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HPsa-U_zNKc/081111112114.htm
New research shows that a medication for high blood pressure called a diuretic or water pill is particularly effective at reducing the risk for a type of heart failure that affects women more often than men.
Fri, 21 Nov 08
Formula For Predicting Climate Change Impact On Salmon Stocks Established
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BIORkTOM4z4/081112124416.htm
Scientists have found a way to accurately predict the impact of climate change on imperiled Pacific salmon stocks that could result in better management strategies.
Fri, 21 Nov 08
Put On A Happy Face: It Helps You See The Big Picture
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bk71W3vVLkY/081117121229.htm
That photo of your smiling kids on the refrigerator door might do more than just make you feel good; you might make healthier food choices after looking at it. A new study in the Journal of Consumer Research shows that positive moods can increase our ability to understand the big picture.
Fri, 21 Nov 08
Discovery Of Giant Roaming Deep Sea Protist Provides New Perspective On Animal Evolution
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lLjh2lUeMcg/081120130531.htm
Groove-like tracks on the ocean floor made by giant deep-sea single-celled organisms could lead to new insights into the evolutionary origin of animals, according to biologists.
Fri, 21 Nov 08
Genetic Risk Factors May Tailor Prostate Cancer Screening Approaches
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OkLqH7Annhk/081117103638.htm
Five genetic risk markers for prostate cancer may allow physicians to adapt screening approaches for men at high-risk, particularly African-American men, according to new research.
Fri, 21 Nov 08
Protecting Puerto Rico's Unique Freshwater Fisheries
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QirVT1HUPUs/081117103726.htm
Scientists have made an enormous advance in understanding Puerto Rico's most remarkable ecosystems by conducting the first comprehensive study of the island's freshwater fish species. Many of these species "are hidden gems that have been largely ignored," the scientist who led the research said.
Fri, 21 Nov 08
Long-term Secondary Prevention Program May Help Reduce Cardiovascular Risks After Heart Attack
http://feeds.sciencedaily.com/~r/sciencedaily/~3/x4PxctOQjbo/081110163758.htm
An intensive, comprehensive, long-term secondary prevention program lasting up to three years after cardiac rehabilitation appears to reduce the risk of a second non-fatal heart attack and other cardiovascular events, according to a new article.
Fri, 21 Nov 08
Tillage, Rotation Impacts Peanut Crops
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7qMTsCid0dQ/081110112109.htm
A recent study looked at the different effects of tillage and rotation practices on peanut crops in the southern United States to determine if the rising trend towards reduced tillage would have an effect on yields and the occurrence of pests. Peanut farmers have thus far been reluctant to incorporate reduced tillage as it has not been seen as a viable practice for this particular crop.
Fri, 21 Nov 08
I'm Sticking With My Brand: Loyal Customers Perceive Competitor Ads Differently
http://feeds.sciencedaily.com/~r/sciencedaily/~3/n-wkAIxgD9Y/081117121231.htm
What does it take for marketers to reach customers who are already loyal to a particular brand? A new study in the Journal of Consumer Research examines brand loyalty and the way it affects perceptions of advertising.
Fri, 21 Nov 08
Darwin Was Right About How Evolution Can Affect Whole Group
http://feeds.sciencedaily.com/~r/sciencedaily/~3/unF1wCLeIzM/081119122634.htm
Worker ants of the world, unite! You have nothing to lose but your fertility. The highly specialized worker castes in ants represent the pinnacle of social organization in the insect world. As in any society, however, ant colonies are filled with internal strife and conflict. So what binds them together? More than 150 years ago, Charles Darwin had an idea and now he's been proven right.
Fri, 21 Nov 08
Biomarkers Used To Predict Chronological And Physiological Age
http://feeds.sciencedaily.com/~r/sciencedaily/~3/W0y5pz0KPuU/081119171316.htm
How old are you really? Chronological age is easy -- count forward from birth. But establishing physiological age is purely subjective, based on how someone looks, feels and functions. Research in nematode worms is providing a crucial first step toward the development of biomarkers to predict chronological and physiological age in humans. This technology could facilitate testing of anti-aging therapies as well as give physicians a means of tracking how individuals "withstand the tests of time."
Fri, 21 Nov 08
Works Of Art Shed New Light On Climate Change
http://feeds.sciencedaily.com/~r/sciencedaily/~3/e-COSNZGwjg/081119084841.htm
Paintings, watercolors and prints can be used by those who manage Britain's coastlines to look back in time and better understand the threat of rising sea levels and climate change.
Fri, 21 Nov 08
What Controls Critical 'Go-to' Enzyme: Findings May Hold Key To Better Treatments For Many Disorders
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FehUDG-Q-i0/081119161122.htm
Scientists have gained new insights into regulation of one of the body's enzyme workhorses called calpains. As the cell's molecular overachievers, calpains function in many cellular processes, including the movement of cells in tissues, the death of damaged cells, insulin secretion, and brain cell and muscle function. The downside of this broad set of responsibilities is that defective or overactive calpains have been linked to an array of disorders, including a form of muscular dystrophy, Type 2 diabetes, gastric cancers, Alzheimer's and Parkinson's diseases, cataracts, and the death of both heart muscle in heart attacks and of brain tissue in stroke and traumatic brain injury.
Fri, 21 Nov 08
'Enlightened' Atoms Stage Nano-riot Against Uniformity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uxmbmQN75L0/081117153234.htm
Theorists say atoms in a crystal can be made to behave in an unexpected way, a way that can be exploited to create tiny computer components that emit less heat and new sensors to detect bio-hazards and medical conditions.
Fri, 21 Nov 08
Crisis Of Illicit Alcohol In Central And Eastern Europe, Report Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ezLMH8YHKoU/081119084837.htm
The consumption of illicit or noncommercial alcohol is widespread in central and eastern Europe and contributes significantly to the region’s high levels of alcohol-related problems, according to a new report. While illegal alcohol consumption in western Europe is relatively low, the report finds the level of noncommercial alcohol in central and eastern Europe is so high that it renders statistics on official alcohol sales nearly useless.
Fri, 21 Nov 08
Potential Sources Of 'Rain-Making' Bacteria In The Atmosphere Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Gwq2813Ls5c/081119171523.htm
Scientists recently found evidence that bacteria and biological cells are the most efficient ice-forming catalysts in precipitation from locations around the globe. The formation of ice in clouds is important in the processes that lead to snow and rain. Ice-nucleating bacteria -- which have been referred to as "rain-making bacteria" -- may be significant triggers of freezing in clouds and influence the water cycle.
Fri, 21 Nov 08
Neurons Derived From Embryonic Stem Cells Restore Muscle Function After Injury
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oT49AV5aFMc/081119174716.htm
Researchers have discovered that embryonic stem cells may play a critical role in helping people with nerve damage and motor neuron diseases, such as amyotrophic lateral sclerosis (ALS), regain muscular strength.
Fri, 21 Nov 08
The Tooth Whisperers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cTYA9YdnAmI/081114202017.htm
The phrase, "the eyes are the windows to the soul," is attributed to several authors and philosophers. But the phrase, "your teeth are the windows to your health," can be attributed to Mohamed Bassiouny, DMD, MSc, PhD, who has been studying how teeth provide important clues to his patients' overall health for more than 30 years.
Fri, 21 Nov 08
Deep Brain Mapping To Isolate Evidence Of Gulf War Syndrome
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Pmu8CptCohw/081119122628.htm
As a congressionally mandated report reveals one of every four veterans of the 1991 Persian Gulf conflict suffers from Gulf War syndrome, statistical scientists are analyzing brain scan images from a nationwide sample of veterans displaying symptoms.
Fri, 21 Nov 08
Scientists Reshape Future Of Drug Discovery With Next Generation Man-Made Molecules
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bzcTEgszR_U/081119084239.htm
Scientists have devised a new way to create the next generation of man-made molecules in a breakthrough that could revolutionize drug development.
Fri, 21 Nov 08
Attending Religious Services Sharply Cuts Risk Of Death, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SdJatqIcWqA/081119174230.htm
A new study strongly suggests that regular attendance at religious services reduces the risk of death by approximately 20 percent.
Fri, 21 Nov 08
Removing Part Of Brain Controls Girl's Epilepsy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WjHh6d_Dx4M/081120091133.htm
Surgeons told Jessica Nelson one of the scariest things she will ever hear as a parent: they wanted to treat her daughter's epilepsy by cutting out or disconnecting half of her brain. Then something extraordinary happened: it worked.
Fri, 21 Nov 08
Two New Compounds Show Promise For Eliminating Breast Cancer Tumors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9r7z6xMW4gY/081119084244.htm
Two new compounds show early promise for destroying breast cancer tumors. Researchers have observed no negative side effects so far. The compounds disrupt bonding of a cancer-related protein.
Fri, 21 Nov 08
Site List Narrows For NASA's Next Mars Landing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cUNNopkfATA/081119180820.htm
Four intriguing places on Mars have risen to the final round as NASA selects a landing site for its next Mars mission, the Mars Science Laboratory. The agency had a wider range of possible landing sites to choose from than for any previous mission, thanks to the Mars Science Laboratory's advanced technologies, and the highly capable orbiters helping this mission identify scientifically compelling places to explore.
Fri, 21 Nov 08
Gene Silencing May Improve Success Of Islet Cell Transplants For Diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eANe5UcxZNg/081119160047.htm
Scientists in Tennessee are reporting that a gene therapy technique called gene silencing shows promise for improving the effectiveness and expanded use of transplants of insulin-producing cells to treat diabetes.
Fri, 21 Nov 08
Toward A New Generation Of Paper-thin Loudspeakers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jUL7BloEQcw/081117095032.htm
In research that may redefine ear buds, earphones, stereo loudspeakers, and other devices for producing sound, researchers in China are reporting development of flexible loudspeakers thinner than paper that might be inserted into the ears with an index finger or attached to clothing, walls, or windows. Their report on what may be the world's thinnest loudspeakers, made from transparent carbon nanotube films, is scheduled for the December 10 issue of Nano Letters.
Thu, 20 Nov 08
Mysterious Source Of High-Energy Cosmic Radiation Discovered: Nearby Exotic Object?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YKyDMpyv0uk/081119170911.htm
Scientists have discovered a previously unidentified nearby source of high-energy cosmic rays. The finding was made with a NASA-funded balloon-borne instrument high over Antarctica.
Thu, 20 Nov 08
New Platinum-phosphate Compounds Kill Ovarian Cancer Cells, Other Cancer Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MEGLT2jqMTE/081119120159.htm
A new class of compounds called phosphaplatins can effectively kill ovarian, testicular, head and neck cancer cells with potentially less toxicity than conventional drugs, according to a new study in the journal Proceedings of the National Academy of Sciences.
Thu, 20 Nov 08
Physicist Make Droplets Dance Above A Surface
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jNy698a1-ok/081118071134.htm
Physicists can now make droplets dance, float and bounce above a surface, keeping small amounts of fluid free of contamination and ripe for testing.
Thu, 20 Nov 08
Genome-wide Association Scan For Genetic Determinants Of Warfarin Dose
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TJyNnZYmRnE/081116161738.htm
A growing number of geneticists are using genome-wide association studies (GWAS) to systematically search for and identify single nucleotide polymorphisms (SNPs), which are single base changes in the human DNA sequence that can cause differences in genetic characteristics. GWAS may also detect genes that are associated with a particular health condition, or with variation in patient response to prescribed drugs.
Thu, 20 Nov 08
New Gene-silencing Pathway Found In Plants
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-asUqGBV8h0/081117153200.htm
Biologists have made major headway in explaining a mechanism by which plant cells silence potentially harmful genes. New research in Cell explains how RNA polymerases work together to use the non-coding region of DNA to prevent destructive, virus-derived genes from being activated. This research adds to a growing body of evidence suggesting that "junk DNA" is in fact a functional part of the genome, since transcription of the intergenic regions is necessary to keep potentially harmful genes turned off.
Thu, 20 Nov 08
Drug-related Preference In Cocaine Addiction Extends To Images
http://feeds.sciencedaily.com/~r/sciencedaily/~3/M1bbHPa5wV8/081116162312.htm
When given a choice between viewing pictures of cocaine and a variety of other images, cocaine addicted individuals, as compared to healthy, non-addicted research subjects, show a clear preference for the drug-related images.
Thu, 20 Nov 08
Woolly-mammoth Genome Sequenced
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FpjHQUHf1wg/081119140712.htm
Scientists have completed the genome-wide sequence of an extinct animal. The scientists sequenced the genome of the woolly mammoth, an extinct species of elephant that was adapted to living in the cold environment of the northern hemisphere. They sequenced four billion DNA bases using next-generation DNA-sequencing instruments and a novel approach that reads ancient DNA highly efficiently.
Thu, 20 Nov 08
Enzyme Discovery May Lead To Better Heart And Stroke Treatments
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QofWhkgeLOE/081119140710.htm
A new study sheds new light on the way one of our cell enzymes, implicated in causing tissue damage after heart attacks and strokes, is normally kept under control.
Thu, 20 Nov 08
Turtles Alter Nesting Dates Due To Temperature Change
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3YT89FmIoSg/081106181413.htm
Researchers say turtles nesting along the Mississippi River and other areas are altering their nesting dates in response to rising temperatures.
Thu, 20 Nov 08
Exercise Is Safe, Improves Outcomes For Patients With Heart Failure, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2FaRFC4Um0o/081111112105.htm
Working out on a stationary bicycle or walking on a treadmill just 25 to 30 minutes most days of the week is enough to modestly lower risk of hospitalization or death for patients with heart failure, say researchers.
Thu, 20 Nov 08
Most Efficient Silicon-based OLED Microdisplay In The World
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TfzIHfV3-E4/081118071430.htm
Offering better comfort to users of point-and-shoot digital cameras, and new designs for video glasses with the highest resolution ever, Microoled and the CEA-Leti have targeted these and many other potential applications with the announcement of the most efficient silicon-based OLED microdisplay in the world.
Thu, 20 Nov 08
Psychological Interventions Associated With Breast Cancer Survival
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iO47Kqoz6jg/081117082042.htm
A new study finds that breast cancer patients who participate in intervention sessions focusing on improving mood, coping effectively and altering health behaviors live longer than patients who do not receive such psychological support.
Thu, 20 Nov 08
Plastic Additives Leach Into Medical Experiments, Research Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/STkp1Trlb_k/081119173218.htm
Researchers have shown that using plastic lab equipment can skew or ruin the results of medical experiments. The researchers identified two classes of chemical compounds in commonly-used plastic lab ware that could leach into solutions. They further demonstrated that the compounds interacted biologically with, and changed the behavior of, human enzymes and brain receptors in different experiments.
Thu, 20 Nov 08
New Theory Of Visual Computation Reveals How Brain Makes Sense Of Natural Scenes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nmZtL1zrv5Q/081119140714.htm
Computational neuroscientists have developed a computational model that provides insight into the function of the brain's visual cortex and the information processing that enables people to perceive contours and surfaces, and understand what they see in the world around them.
Thu, 20 Nov 08
Trouble In The Pipeline For Grey Whales
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3_qQZl8b-wU/081012100519.htm
The fate of the world's few remaining western grey whales now rests on the outcome of appeals to Russian authorities and courts following the refusal of an oil consortium to consider alternatives to a proposal to lay an oil pipeline through a shallow lagoon crucial to the whales' food supplies.
Thu, 20 Nov 08
Rural Women Are At Higher Risk Of Blood Pressure Disorders During Pregnancy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yvJ_oij_lyU/081109074613.htm
Several factors, such as older age and high weight gain, are known risk factors for pre-eclampsia and other pregnancy-related blood pressure disorders. Now a new report suggests that social factors -- including living in a rural county -- may also increase the risk of pre-eclampsia and pregnancy-induced hypertension, according to new research.
Thu, 20 Nov 08
Sonography In Space
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sfkv6-WaQ1s/081117091631.htm
Astronauts on extended space missions can get injured or develop diseases, necessitating immediate diagnosis and treatment. Research conducted on the International Space Station ensuring that astronauts could accurately perform remotely-guided sonograms was published in the Journal of Diagnostic Medical Sonography.
Thu, 20 Nov 08
Media Violence Cited As 'Critical Risk Factor' For Aggression
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BcTr1RZ_cYI/081119122632.htm
You are what you watch, when it comes to violence in the media and its influence on violent behavior in young people, and an article provides new evidence that violent media does indeed impact adolescent behavior.
Thu, 20 Nov 08
How Do Bacteria Swim? Physicists Explain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/w3oM2pTpQEE/081119151515.htm
Physicists have completed the most detailed study of the swimming patterns of a microbe, showing for the first time how its movement is affected by drag and a phenomenon called Brownian motion.
Thu, 20 Nov 08
ADHD Medications Do Not Cause Genetic Damage In Children, Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QHzdyHBNxL0/081119120143.htm
In contrast to recent findings, two of the most common medications used to treat attention deficit hyperactivity disorder do not appear to cause genetic damage in children who take them as prescribed, according to a new study by researchers at the National Institutes of Health and Duke University Medical Center.
Thu, 20 Nov 08
Gene That Regulates Mold's Resistance To Drugs Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4U_o1MXz4X8/081107143855.htm
Researchers have found a gene that regulates mold's resistance to anti-mold drugs.
Thu, 20 Nov 08
General Anesthesia For Hernia Surgery In Children And Risk Of Later Developmental Problems
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IdwoW5kG5Kk/081107143752.htm
Children under the age of three who had hernia surgery showed almost twice the risk of behavioral or developmental problems later compared to children who had not undergone the surgery.
Thu, 20 Nov 08
Second Life: 'Second China' Offers Foreign Service Workers First Impression
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cFjnlMeSlgs/081029154856.htm
Diplomats or military envoys making their first trip to China may soon have a chance to visit a Chinese office building, stop in at a traditional teahouse or hop a cab -- all before they board a plane.
Thu, 20 Nov 08
Extensive Use Of Illicit Alcohol Found
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jMJ0sNJf2Ys/081119092933.htm
The consumption of illicit or noncommercial alcohol is widespread in many countries worldwide and contributes significantly to the global burden of disease, according to a new report.
Thu, 20 Nov 08
New Bacteria Discovered In Raw Milk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1-J8Im--78A/081117082051.htm
Raw milk is illegal in many countries as it can be contaminated with potentially harmful microbes. Contamination can also spoil the milk, making it taste bitter and turn thick and sticky. Now scientists have discovered new species of bacteria that can grow at low temperatures, spoiling raw milk even when it is refrigerated. It seems the microbial population of raw milk is much more complex than previously thought.
Thu, 20 Nov 08
Rhesus Factor Controls Renal Function And Male Fertility
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3zqQTAhZ-g4/081119142108.htm
The "Rhesus" blood group is well-known from the public for its importance in the field of transfusion medicine. New observations have implications in human medicine. They suggest that in man, mutations affecting the RHCG gene could cause some forms of renal pathologies and/or a loss of male fertility.
Thu, 20 Nov 08
Consumers Influence Christmas Tree Styles
http://feeds.sciencedaily.com/~r/sciencedaily/~3/knbkG5VHeWk/080929104605.htm
The Fraser fir is gaining popularity among American consumers looking for beautiful, long-lasting Christmas trees. Consumers favor Fraser fir for its conical shape, dark green foliage, pleasant aroma and excellent needle retention.
Thu, 20 Nov 08
Jumonjd3: A Key For Unlocking Neuronal Stem Cell Fate
http://feeds.sciencedaily.com/~r/sciencedaily/~3/k4tGzkqWx50/081105083723.htm
A novel role for the protein, Jumonjd3, as an epigenetic modulator in the neuronal differentiation of embryonic stem cells, has recently been uncovered -- a step forward in the understanding of cellular reprogramming and in the development of innovative cancer therapies.
Thu, 20 Nov 08
Hops Extract May Reduce Clostridium In Chickens
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kIBXztU6tVA/081031214527.htm
Hops contain substances that control pathogenic bacteria in the intestines of chickens, Agricultural Research Service (ARS) scientists and cooperators have reported.
Thu, 20 Nov 08
African-Americans With Depression And Heart Attack Have Greater Risk Of Death
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sBZReNjf-lE/081112160844.htm
African-American patients with acute myocardial infarction and previously treated depression that persists at their MI hospitalization have an increased risk of post-MI death, according to new research.
Thu, 20 Nov 08
'New' Penguin Species In New Zealand Found Using Ancient DNA From Fossils
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BxBrUaI6g24/081118194528.htm
Australian and New Zealand researchers have used ancient DNA from penguin fossils to make a startling discovery that may change the way we view species extinctions.
Thu, 20 Nov 08
Gut Check Reveals Vast Multicultural Community Of Bugs In Bowels
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tfJ4bwcOwkY/081117203843.htm
Mention the phrase "diverse ecosystem," and it conjures images of tropical rainforests and endangered coral reefs. It also describes the human colon. A new study reveals in greater detail than ever before the full extent of the bacterial community inhabiting the human bowel -- 10 times more diverse than previous research had suggested.
Thu, 20 Nov 08
Over-stressing Already Taxed Cancer Cells May Kill Them
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GtdLYD7jccc/081110112105.htm
Cancer cells are already stressed by the fast pace they require to grow and spread and scientists believe a little more stress just may kill them.
Thu, 20 Nov 08
Genetics For Personalized Coronary Heart Disease Treatment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/v_8bUUScs8g/081111183027.htm
Identifying a single, common variation in a person's genetic information improves prediction of his or her risk of a heart attack or other heart disease events and thus, choice of the best treatment accordingly, said researchers at Baylor College of Medicine.
Thu, 20 Nov 08
Quicker, Easier Way To Make Coal Cleaner
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TMVNJRERCg8/081117131709.htm
Construction of new coal-fired power plants in the United States is in danger of coming to a standstill, partly due to the high cost of the requirement -- whether existing or anticipated -- to capture all emissions of carbon dioxide, an important greenhouse gas. But an MIT analysis suggests an intermediate step that could get construction moving again, allowing the nation to fend off growing electricity shortages using our most-abundant, least-expensive fuel while reducing emissions.
Thu, 20 Nov 08
Improving Long-term Learning Through Spacing Of Lessons
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tKry9TtIlm0/081118141708.htm
Combine the aphorisms that "practice makes perfect" and "timing is everything" into one and you might get something resembling findings published in this month's issue of Psychological Science. Proper spacing of lessons, the researchers report, can dramatically enhance learning. And larger gaps between study sessions result in better recall of facts. Conversely: Cramming is ineffective in the long haul.
Thu, 20 Nov 08
Floppy-footed Gibbons Help Us Understand How Early Humans May Have Walked
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TbreRW1KnpM/081117103735.htm
Early humans roamed the plains long before we evolved our modern inflexible feet. So how did they walk on floppy feet? New research shows how a close relative, the gibbon, manages perfectly well despite their 'floppy' feet. They even use the same energy saving mechanisms when pushing off, despite the foot's different architecture.
Thu, 20 Nov 08
Gene Associated With Epilepsy Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Xw-lOUflZD0/081118071140.htm
Scientists have found a new gene associated with the brain disorder epilepsy. While the PRICKLE1 gene mutation was specific to a rare form of epilepsy, the study results could help lead to new ideas for overall epilepsy treatment.
Thu, 20 Nov 08
Speeding Antarctic Glacier: Scientists Discover Another Reason For Glacial Acceleration
http://feeds.sciencedaily.com/~r/sciencedaily/~3/X799nE4IWdE/081118144857.htm
New satellite data have helped scientists crack the case of a speeding Antarctic glacier -- a finding that promises to help improve sea level forecasts.
Thu, 20 Nov 08
Cellular Safety Shelters Allow TB Agent To Survive In Infected Individuals
http://feeds.sciencedaily.com/~r/sciencedaily/~3/De3T5czfGA8/081114081001.htm
"Foamy" macrophage formation may be the key to persistence of infection by Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis, explains a new study in PLoS Pathogens. These immunity-related cells are shown to be a safety reservoir where the bacterium can hide for years in infected individuals, before inducing an active disease.
Thu, 20 Nov 08
Hybrid Cars Too Quiet For Pedestrian Safety? Add Engine Noise, Say Researchers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xLr4WzbEmsE/081117091633.htm
Hybrid and electric vehicles do not emit the sounds pedestrians and bicyclists are accustomed to hearing as a vehicle approaches them. Human factors/ergonomics researchers examined participants' preferences for sounds that could be added to quiet vehicles to make them easier to detect.
Thu, 20 Nov 08
Men With Facial Scars Are More Attractive To Women Seeking Short-term Relationships
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hp1KFEKtJp4/081118081446.htm
Men with facial scars are more attractive to women seeking short-term relationships, scientists at the University of Liverpool have found.
Thu, 20 Nov 08
Garlic Chemical Tablet Treats Diabetes I And II, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ezKfYmAWWvI/081119084835.htm
A drug based on a chemical found in garlic can treat diabetes types I and II when taken as a tablet, a new study shows.
Thu, 20 Nov 08
First Detailed 3-D Glimpse Of Bacterial Cell-wall Architecture
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bUcDLxA8zws/081117153232.htm
The bacterial cell wall that is the target of potent antibiotics such as penicillin is actually made up of a thin single layer of carbohydrate chains, linked together by peptides, which wrap around the bacterium like a belt around a person, according to scientists at the California Institute of Technology. This first-ever glimpse of the cell-wall structure in three dimensions was made possible by new high-tech microscopy techniques.
Thu, 20 Nov 08
Individuals With HIV Have Higher Risk Of Non-AIDS Cancers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fMZRHvAaFQ0/081118121928.htm
The risk of non-AIDS cancer is higher for individuals infected with HIV than for the general population, according to a meta-analysis presented at the American Association for Cancer Research's Seventh Annual International Conference on Frontiers in Cancer Prevention Research.
Thu, 20 Nov 08
How Household Bleach Kills Bacteria
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3o_-Q2HM1HM/081113140314.htm
Developed more than 200 years ago and found in households around the world, chlorine bleach is among the most widely used disinfectants, yet scientists never have understood exactly how the familiar product kills bacteria.
Thu, 20 Nov 08
Kids From Juvenile Justice System 7 Times More Likely To Commit Criminal Acts, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rLqPksk9wfA/081118122101.htm
A new study shows that juvenile delinquents sentenced to either a juvenile retreat, probation or unsupervised community service were seven times more likely to commit criminal acts as adults than youngsters from the control group who managed to avoid the juvenile justice system.
Wed, 19 Nov 08
Black Holes Are The Rhythm At The Heart Of Galaxies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Zp0Ot0zBf2M/081118161603.htm
The powerful black holes at the center of massive galaxies and galaxy clusters act as hearts to the systems, pumping energy out at regular intervals to regulate the growth of the black holes themselves, as well as star formation, according to new data from NASA's Chandra X-Ray Observatory.
Wed, 19 Nov 08
Broccoli May Lower Lung Cancer Risk In Smokers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZJ4G1Cr6HBY/081118150630.htm
The cancer preventive properties of broccoli and other cruciferous vegetables appear to work specifically in smokers, according to new research.
Wed, 19 Nov 08
NASA Tests First Deep-Space Internet
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mLGQ93PXQbE/081118160432.htm
NASA has successfully tested the first deep space communications network modeled on the Internet. Engineers from NASA's Jet Propulsion Laboratory used software called Disruption-Tolerant Networking, or DTN, to transmit dozens of space images to and from a NASA science spacecraft located about more than 32 million kilometers (20 million miles) from Earth.
Wed, 19 Nov 08
New Equation Provides More Accurate Estimates Of Kidney Function
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0fZ1FP524rg/081107163259.htm
A newly developed equation produces more accurate estimates of the glomerular filtration rate, a key indicator of kidney function in patients with chronic kidney disease, according to new research.
Wed, 19 Nov 08
What The Social Lives Of Brewer’s Yeast Say About Evolution
http://feeds.sciencedaily.com/~r/sciencedaily/~3/l-x_mZDiiqU/081113140321.htm
An ingenious social behavior that mobilizes yeast cells to cooperate in protecting each other from stress, antibiotics and other dangers is driven by the activity of a single gene, scientists report in the journal Cell. The cooperating cells use the same gene, dubbed FLO1, as a marker for detecting "cheaters:" cells that try to profit from the group's protection without investing in the group's welfare.
Wed, 19 Nov 08
The Psychology Of Deja Vu
http://feeds.sciencedaily.com/~r/sciencedaily/~3/peMH_xL_sa4/081118122146.htm
All of us have experienced being in a new place and feeling certain that we have been there before. A new report published in Current Directions in Psychological Science describes recent findings about deja vu, including the many similarities that exist between déjà vu and our understanding of human recognition memory.
Wed, 19 Nov 08
Long-lost 'Furby-like' Primate Discovered In Indonesia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8qjxtxCHXHU/081118121946.htm
Anthropologists have discovered a group of primates not seen alive in 85 years. The pygmy tarsiers, furry Furby-like, or gremlin-looking, creatures about the size of a small mouse and weighing less than two ounces, have not been observed since they were last collected for a museum in 1921.
Wed, 19 Nov 08
Ginkgo Biloba Does Not Reduce Dementia Risk, Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/E1pCUIhqU6c/081118161234.htm
The medicinal herb Ginkgo biloba does not reduce the risk of dementia or Alzheimer's disease development in either the healthy elderly or those with mild cognitive impairment, according to a large multicenter trial.
Wed, 19 Nov 08
Light Inside Sponges: Sponges Invented (and Employed) The First Fiber Optics
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WUcAWKJ4WEw/081118141900.htm
Fiber optics as light conductors are obviously not just a recent invention. Sponges (Porifera), the phylogenetically oldest, multicellular organisms (Metazoa) are able to transduce light inside their bodies by employing amorphous, siliceous structures. Already more than ten years ago, the finding of photosynthetically active organisms inside sponges raised the question, how they could survive there in an otherwise presumably dark space. As early as that time, marine biologists have hypothesized, that light might be transferred inside the sponge body.
Wed, 19 Nov 08
ECG Tests No Better Than Routine Clinical Assessment At Predicting Future Heart Disease, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BvnPxElX8Nc/081114081007.htm
ECG tests commonly given to people with suspected angina to predict the likelihood future of heart disease have limited accuracy, according to a new study.
Wed, 19 Nov 08
Student Achieves Control Of Collagen Nanofibers To Manufacture Synthetic Knee Cartilage
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wqqgeEeri0Q/081113075959.htm
An engineering student reports on the manufacturing of synthetic cartilage similar to human cartilage, for medical use. Protection of the knee for disabled people with prostheses may be one of the first applications.
Wed, 19 Nov 08
Necessary Lattes? People Short On Self-control Categorize More Items As Necessities
http://feeds.sciencedaily.com/~r/sciencedaily/~3/v-UnOWJR91k/081117110848.htm
Why do so many of us give up on those New Year's resolutions to lose weight or curb luxury spending? A new study in the Journal of Consumer Research says it has to do with the way our goals intersect with our natures.
Wed, 19 Nov 08
New Planet Discovered Orbiting Dangerously Close To Giant Star
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7Uw2Tny8mZ8/081118141712.htm
Astronomers have discovered a new planet that is closely orbiting a red-giant star, HD 102272, which is much older than our own Sun. The planet has a mass that is nearly six times that of Jupiter, the largest planet in our solar system. The research sheds light on the ways in which aging stars can influence nearby planets.
Wed, 19 Nov 08
Patient's Own Stem Cells Can Be Used To Treat Heart Failure
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OaxYYzbeu_s/081117110844.htm
Researchers are enrolling people in a new clinical trial that uses a patient's own stem cells to treat ischemic and non-ischemic heart failure. The one-year Cardiac Repair Cell Treatment of Patients with Dilated Cardiomyopathy study will look at the safety of injecting Cardiac Repair Cells and their ability to improve heart function.
Wed, 19 Nov 08
How Cockroaches Keep Their Predators 'Guessing'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NhsWnfwSoo4/081113140312.htm
When cockroaches flee their predators, they choose, seemingly at random, amongst one of a handful of preferred escape routes, according to a new report.
Wed, 19 Nov 08
What Makes An Axon An Axon?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nd2BGEk8KtY/081110112055.htm
Inside every axon is a dendrite waiting to get out. Scientists converted mature axons into dendrites by banishing a protein crucial for neuron development. The results suggest that this transformation could occur after nerve cell damage.
Wed, 19 Nov 08
New System Proposed To Optimize Combined Energy Use
http://feeds.sciencedaily.com/~r/sciencedaily/~3/T5RsRkO-2rM/081113111343.htm
Engineers in Spain have developed an algorithm that can optimize hybrid electricity generation systems through combined use of renewable energies, such as photovoltaic and wind power, and non-renewables, such as diesel. Their study envisions storing the energy in batteries or hydrogen tanks.
Wed, 19 Nov 08
Sleep Helps People Learn Complicated Tasks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QjKXr_SBMmA/081117110838.htm
Sleep helps the mind learn complicated tasks and helps people recover learning they otherwise thought they had forgotten. Using a test that involved learning to play video games, researchers showed for the first time that people who had "forgotten" how to perform a complex task 12 hours after training found that those abilities were restored after a night's sleep.
Wed, 19 Nov 08
Funerary Monument Reveals Iron Age Belief That The Soul Lived In The Stone
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2ReSaXjVrAc/081118071136.htm
Archaeologists in southeastern Turkey have discovered an Iron Age chiseled stone slab that provides the first written evidence in the region that people believed the soul was separate from the body.
Wed, 19 Nov 08
Antibiotics Can Cause Pervasive, Persistent Changes To Microbiota In Human Gut
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ah1x_qd3ZV0/081118121941.htm
Using a novel technique developed at the Marine Biological Laboratory to identify different types of bacteria, scientists have completed the most precise survey to date of how microbial communities in the human gut respond to antibiotic treatment.
Wed, 19 Nov 08
Battling Bacteria In The Blood: Mathematical Models Help In Tackling Deadly Infections
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_UlyGHdCXfk/081111102806.htm
It's a leading cause of death, but no one knows for sure how and why it happens. It's a major source of health care costs, adding days or weeks to the hospital stays of millions of people. But no one fully understands how best to fight it. Now, new research is tackling the problem at its most basic level, in hopes of finding new and more effective ways to treat bacteremia and sepsis.
Wed, 19 Nov 08
Low-dose Aspirin Does Not Appear To Reduce Risk Of CV Events In Patients With Diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UqF7y8fJIgc/081109193429.htm
Low-dose aspirin as primary prevention did not appear to significantly reduce the risk of a combined end point of coronary, cerebrovascular and peripheral vascular events in patients with type-2 diabetes, according to a new study. However, aspirin did significantly reduce the combination of fatal coronary and fatal cerebrovascular events.
Wed, 19 Nov 08
Step Toward Disease-resistant Crops, Sustainability
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DY1wPa_QV4Y/081112160900.htm
A five-year study that could help increase disease resistance, stress tolerance and plant yields is under way. The $4 million project uses a new technique called "mutant-assisted gene identification and characterization," or MAGIC, to identify potentially useful gene combinations in crop species.
Wed, 19 Nov 08
Alcohol Sponsorship Linked To Hazardous Drinking In Sportspeople
http://feeds.sciencedaily.com/~r/sciencedaily/~3/U9yYbWu_eZI/081118095350.htm
A new study provides the first evidence of a link between alcohol-industry sponsorship and hazardous drinking among sportspeople.
Wed, 19 Nov 08
Comet Particles Provide Glimpse Of Solar System's Birth Spasms
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Dd0rV6irTxs/081117091627.htm
Scientists are tracking the violent convulsions in the giant cloud of gas and dust that gave birth to the solar system 4.5 billion years ago via a few tiny particles from comet Wild 2.
Wed, 19 Nov 08
Cell Pathway Driving A Deadly Sub-type Of Breast Cancer Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8e_p_-5i0j4/081114184626.htm
An intra-cellular pathway not previously linked to breast cancer is driving a sub-type of the disease that is highly lethal and disproportionately over-represented in African-American women.
Wed, 19 Nov 08
Pollinator Decline Not Reducing Crop Yields Just Yet
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ajf1a9Na-LU/081111102826.htm
The well-documented worldwide decline in the number of bees and other pollinators is not, at this stage, limiting global crop yields, according to an article in Current Biology.
Wed, 19 Nov 08
Heart Failure Hospitalization Rates Rise Among Nation's Seniors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/I7i8bjh62rw/081109193330.htm
The number of patients over age 65 hospitalized for heart failure increased by 131 percent between 1980 and 2006. Women had a much higher annual increase than men. Among the three major forms of cardiovascular disease (coronary heart disease and stroke being the other two), only heart failure has shown a significant increase in hospitalization rates.
Wed, 19 Nov 08
Improved Spectrometer Based On Nonlinear Optics
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Y81QDYBfOCw/081112113705.htm
Scientists have created a new highly sensitive infrared spectrometer. The device converts light from the infrared part of the spectrum to the visible part, where the availability of superior optical detectors results in strongly improved sensing capabilities.
Wed, 19 Nov 08
How Often Will You Use That Treadmill?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MBQa2CDQgVQ/081117110846.htm
Why not buy that treadmill? You'll be exercising every day, right? A new study in the Journal of Consumer Research examines why our expectations of our behavior so often don't match reality.
Wed, 19 Nov 08
Clue To Stopping Breast-cancer Metastasis Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nQl7wLE4ywA/081117153230.htm
If scientists knew exactly what a breast cancer cell needs to spread, then they could stop the most deadly part of the disease: metastasis. New research takes a step in that direction.
Wed, 19 Nov 08
Study Helps Identify Beachgoers At Increased Risk Of Skin Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gZsHy_VmUbM/081117192906.htm
Identifying the sun-protection practices and risk profiles of beachgoers may help determine those who would benefit from targeted interventions intended to reduce the risk of skin cancer, according to a study in the November issue of Archives of Dermatology.
Wed, 19 Nov 08
Calcium May Only Protect Against Colorectal Cancer In Presence Of Magnesium
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RDHz80JSzyo/081116142324.htm
An understanding of the relationship between calcium and magnesium may lead to new avenues of personalized prevention for colorectal cancer.
Wed, 19 Nov 08
Next-generation Particle Accelerator -- ALICE -- Accelerates To 4-Million-Volt Milestone
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RXv9pA5Af0E/081117121241.htm
A major milestone has been achieved in the completion of the UK's next-generation particle accelerator, ALICE, which is set to produce an intense beam of light that will revolutionize the way in which accelerator based light source research facilities will be designed in the future.
Wed, 19 Nov 08
Hazardous Alternatives To Alcohol Beverages Are Still Widely Available In Russia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fZEJBFjOxUc/081117192752.htm
Non-beverage alcohols are manufactured liquids that contain alcohol but are not intended for consumption, such as medicinal tinctures, aftershave, alcohol-based anti-freeze, antiseptics, and eau-de-colognes. A survey of 17 Russian cities has found that these products are widely available, highly concentrated, and cheaper than standard Russian vodka.
Wed, 19 Nov 08
Astronomers Detect Matter Torn Apart By Black Hole
http://feeds.sciencedaily.com/~r/sciencedaily/~3/U4TaUp-rqG4/081118095852.htm
Astronomers have used two different telescopes simultaneously to study the violent flares from the supermassive black hole in the center of the Milky Way. They have detected outbursts from this region, known as Sagittarius A*, which reveal material being stretched out as it orbits in the intense gravity close to the central black hole.
Wed, 19 Nov 08
Biomedical Engineers' Detective Work Reveals Antibiotic Mechanism
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6tVQSJl29YQ/081117160805.htm
Biomedical researchers used a series of genetic clues to uncover how certain antibiotics kill bacteria. They focused on finding the precise trigger that caused over-production of hydroxyl radical molecules and how misfolded proteins get delivered to the cell membrane, which with other steps contributes to cell death.
Wed, 19 Nov 08
Nations Around World Mark 10th Anniversary Of International Space Station
http://feeds.sciencedaily.com/~r/sciencedaily/~3/S5oPMEOf2p4/081117161925.htm
Nations around the world will join together to mark a milestone in space exploration this week, celebrating the 10th birthday of a unique research laboratory, the International Space Station. Now the largest spacecraft ever built, the orbital assembly of the space station began with the launch from Kazakhstan of its first bus-sized component, Zarya, on Nov. 20, 1998. The launch began an international construction project of unprecedented complexity and sophistication.
Wed, 19 Nov 08
Why HIV Treatment Makes People So Susceptible To Heart Disease And Diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QWmfzUv4ads/081117103730.htm
Clinicians have known for some time that people treated for HIV also become much more susceptible to diabetes and heart disease. A study by scientists in Australia has now shown some of the reasons why -- enabling better patient management and monitoring.
Wed, 19 Nov 08
'Six Degrees Of Kevin Bacon' Game Provides Clue To Efficiency Of Complex Networks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ip7-HlgehwE/081117153207.htm
As the global population continues to grow exponentially, our social connections to one another remain relatively small, as if we're all protagonists in the Kevin Bacon game inspired by "Six Degrees of Separation," a Broadway play and Hollywood feature that were popular in the 1990s.
Wed, 19 Nov 08
Thank Journalist, Rather Than Pilgrims, For Thanksgiving Feast
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZkHkj5rrKV8/081117220543.htm
Historians explain that the current version of Thanksgiving was created by a journalistic crusader, and would have been unrecognizable to the Pilgrims it supposedly honors.
Wed, 19 Nov 08
Australian First: Kangaroo Genome Mapped
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HXoQHWEeBwo/081118092253.htm
Australian researchers have launched the world first detailed map of the kangaroo genome, completing the first phase of the kangaroo genomics project.
Wed, 19 Nov 08
Two Cancer Drugs Prevent, Reverse Type 1 Diabetes, Animal Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ne031TENKuU/081118092250.htm
Two common cancer drugs have been shown to both prevent and reverse type 1 diabetes in a mouse model of the disease, according to new research. The drugs -- imatinib (marketed as Gleevec) and sunitinib (marketed as Sutent) -- were found to put type 1 diabetes into remission in 80 percent of the test mice and work permanently in 80 percent of those that go into remission.
Wed, 19 Nov 08
Technology Gives 3-D View Of Human Coronary Arteries
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kai-vgfVv3w/081117192809.htm
For the first time researchers are getting a detailed look at the interior of human coronary arteries, using an optical imaging technique developed at the Wellman Center for Photomedicine at Massachusetts General Hospital. In their report in the journal JACC: Cardiovascular Imaging, the research team describes how optical frequency-domain imaging gives 3-D, microscopic views of significant segments of patients' coronary arteries, visualizing areas of inflammation and plaque deposits.
Wed, 19 Nov 08
New Clue Emerges For Cellular Damage In Huntington's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Lz28mjTvc4w/081116184129.htm
Huntington's disease is caused by a single mutated gene that creates proteins with abnormally long repeats of the amino acid glutamine. These proteins misfold and clump together, damaging and eventually killing neurons. Yet the steps that trigger cell death have not been clarified. This study reports one early trigger: The misfolded proteins interfere with the cell's ability to move proteins marked for degradation out of the endoplasmic reticulum (a cell compartment that folds and processes proteins).
Wed, 19 Nov 08
Mathematics Students Make Prime Discovery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8Ot0TJpTrlE/081117220257.htm
Mathematics students have made a significant new discovery in the mathematical field of number theory. They have discovered the first known example of a 3 by 3 by 3 generalized arithmetic progression (GAP).
Wed, 19 Nov 08
Scientists Self-censor In Response To Political Controversy, Survey Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7Nbpw18Bqvg/081117203829.htm
A survey of scientists whose studies became the focus of a public debate about NIH grant funding has found that many of them engaged in self-censorship as a result of the controversy.
Tue, 18 Nov 08
Low Concentrations Of Pesticides Can Become Toxic Mixture For Amphibians
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YyIBe6_Yfww/081111183041.htm
Ten of the world's most popular pesticides can decimate amphibian populations when mixed together even if the concentration of the individual chemicals are within limits considered safe, according to new research. Such "cocktails of contaminants" are frequently detected in nature, a new article notes.
Tue, 18 Nov 08
Billions Of Particles Of Anti-matter Created In Laboratory
http://feeds.sciencedaily.com/~r/sciencedaily/~3/syJKi6Tl8Io/081117193019.htm
Take a gold sample the size of the head of a push pin, shoot a laser through it, and suddenly more than 100 billion particles of anti-matter appear. The anti-matter, also known as positrons, shoots out of the target in a cone-shaped plasma "jet."
Tue, 18 Nov 08
Protein Compels Ovarian Cancer Cells To Cannibalize Themselves
http://feeds.sciencedaily.com/~r/sciencedaily/~3/f8hSUHU0jy0/081115083209.htm
A protein known to inhibit the growth of ovarian cancer works in part by forcing cancer cells to eat themselves until they die, researchers report in Cancer Research.
Tue, 18 Nov 08
Newborn Neurons In Adult Brain Can Settle In The Wrong Neighborhood
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BQVckXepDb4/081110223326.htm
In a study that could have significant consequences for neural tissue transplantation strategies, researchers report that inactivating a specific gene in adult neural stem cells makes nerve cells emerging from those precursors form connections in the wrong part of the adult brain.
Tue, 18 Nov 08
First At-home Test For Vasectomized Men Proves To Be Safe And Accurate, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-Z_MGXrNP90/081113181322.htm
In a new report, researchers have confirmed the accuracy and reliability of SpermCheck Vasectomy, the first FDA approved at-home immunodiagnostic test for detecting low concentrations of sperm.
Tue, 18 Nov 08
NASA Satellites Capture Images Of Southern California Wildfires
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vNwKwr54bmg/081117163354.htm
Images from NASA satellites give a wider perspective of the full extent and devastation of the wildfires raging in Southern California.
Tue, 18 Nov 08
Children Distressed By Family Fighting Have Higher Stress Hormones
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ALW0OZqz9qE/081114080912.htm
A new study found that children who are very distressed when their parents fight have higher levels of the stress hormone cortisol. Distress, hostility, and level of involvement parental arguments were measured in 208 six-year olds. Cortisol levels were measured by taking saliva samples before and after simulated telephone arguments between their parents. Children who were very distressed and very involved in response to parental fighting had especially high cortisol levels.
Tue, 18 Nov 08
Gamma-Ray Evidence Suggests Ancient Mars Had Massive Oceans
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ybYAkxAqBBw/081117212321.htm
As much as a third of Mars could have been underwater, scientists say. An international team of scientists who analyzed data from the Gamma Ray Spectrometer onboard NASA's Mars Odyssey reports new evidence for the controversial idea that oceans once covered about a third of ancient Mars.
Tue, 18 Nov 08
Gene Chips Accurately Detect Pneumonia In ICU Patients On Ventilators
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Jo5X3Dix1cE/081117091629.htm
Even seasoned doctors have a difficult time diagnosing pneumonia in hospitalized patients breathing with the assistance of a ventilator. That's because a patient's underlying illness often skews laboratory test results and masks pneumonia's symptoms. Now, researchers report they have validated the use of gene chip technology to rapidly and accurately detect pneumonia associated with ventilator use in hospitalized patients.
Tue, 18 Nov 08
Damage Inflicted During Cardiac Attacks More Widespread, Researchers Find
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UzytQzY__X4/081111130844.htm
Cholesterol crystals released in the bloodstream during a cardiac attack or stroke can damage artery linings much further away from the site of the attack, leaving survivors at greater risk than previously thought.
Tue, 18 Nov 08
How Cancer Spreads: Signaling Between Protein, Growth Factor Is Critical For Coordinated Cell Migration
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8AoyTzxIGEw/081110153623.htm
The mysterious process that orchestrates cells to move in unison to form human and animal embryos, heal wounds, and even spread cancer depends on interaction between two well-known genetic signaling pathways, researchers have discovered.
Tue, 18 Nov 08
Physicists Steer Electrons With Laser Pulses
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fHtf5Uzi8ZU/081113181426.htm
Three theoretical physicists explained how attosecond laser pulses can be used to direct the motion of an electron inside a hydrogen molecule, and what the measurable consequences of this control over the electron would be.
Tue, 18 Nov 08
Kids Not Eating Their Five Fruits Or Vegetables A Day, UK Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GpC0MUzqS2Q/081114081005.htm
Most children are still failing to eat five pieces of fruit and vegetables a day, though their levels of physical activity do meet current government recommendations, according to a new study.
Tue, 18 Nov 08
World's Earliest Nuclear Family Found
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HeNU4MyOIrA/081117192915.htm
The earliest evidence of a nuclear family, dating back to the Stone Age, has been uncovered by an international team of researchers.
Tue, 18 Nov 08
Researchers Identify Toehold For HIV's Assault On Brain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NblaPVKWjNA/081114134921.htm
Scientists have unraveled in unprecedented detail the cascade of events that go wrong in brain cells affected by HIV, a virus whose assault on the nervous system continues unabated despite antiviral medications that can keep the virus at bay for years in the rest of the body.
Tue, 18 Nov 08
Studying Individual Breast Cancer Cells For Days At A Time, Using New Method
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pd2_NvwI6r4/081112140417.htm
Scientists describe for the first time a method of viewing individual breast cancer cells for several days at a time.
Tue, 18 Nov 08
How Cells Take Out The Trash To Prevent Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WQh-g2WeAVg/081110154032.htm
Garbage collectors are important for removing trash; without them waste accumulates and can quickly become a health hazard. Similarly, individual cells that make up such biological organisms as humans also have sophisticated methods for managing waste.
Tue, 18 Nov 08
Arsenic Linked To Cardiovascular Disease At EPA-regulated Drinking Water Standards
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mm2WUz9CgdQ/081113181206.htm
When mice are exposed to arsenic at federally-approved levels for drinking water, pores in liver blood vessels close, potentially leading to cardiovascular disease, say researchers. The study, while preliminary, also reveals how an enzyme linked to hypertension and atherosclerosis alters cells, and may call into question current US Environmental Protection Agency standards that are based solely on risks for cancer.
Tue, 18 Nov 08
Helping Children And Teens Deal With Stress In An Uncertain Time
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fKFt2sr6UfY/081113181308.htm
A psychologist whose research focuses on the relationship between psychological thriving and coping processes during major life transitions says that in these uncertain times, children of any age, including teens, need to be reassured that they are safe and will be cared for no matter how the family is faring.
Tue, 18 Nov 08
'Orphan' Genes Play An Important Role In Evolution
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BoQ3rQ76klE/081117203837.htm
Every group of animals possesses a small proportion of genes which are extremely variable among closely related species or even unique. Such genes are referred to as "novel," "orphan" or "taxonomically restricted." Their function and origin are often obscure. What are these genes needed for? A new paper, published in this week's issue of the online open access journal, PLoS Biology, explores this question in the freshwater polyp Hydra, which belongs to the same branch of the evolutionary tree as jelly fish.
Tue, 18 Nov 08
Immune System And Intestinal Bacteria: The Key To Balanced Cohabitation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Mj_fm61P8cs/081114185942.htm
Researchers have just discovered a key mechanism that maintains the essential balance between bacteria living in our intestine and the immune system controlling them. Their research, published in the journal Nature, paves the way for new forms of treatment for infectious diseases of the intestine, such as dysentery, or chronic inflammatory diseases, such as Crohn's disease.
Tue, 18 Nov 08
Protein Can Nurture Or Devastate Brain Cells, Depending On Its 'Friends,' Researchers Find
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qk0xHiHwfYY/081111130854.htm
Researchers have uncovered new insights into the "Dr. Jekyll and Mr. Hyde" nature of a protein that stimulates stem-cell maturation in the brain but, paradoxically, can also lead to nerve-cell damage.
Tue, 18 Nov 08
Only Half Of Patients With Multiple Sclerosis Achieve And Maintain Response To Interferon Treatment, Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fslhLbSnJfY/081110163816.htm
Regular magnetic resonance imaging evaluations show that only about half of patients with multiple sclerosis achieve and sustain a response to treatment with interferon beta over three years, according to a new study in the Archives of Neurology.
Tue, 18 Nov 08
Vans Go Green: Novel Spoiler Design Reduces Fuel Consumption
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9tEc0Pgf0EQ/081110153704.htm
Research published in the International Journal of Vehicle Design, the team describes how a new vehicle spoiler design can improve fuel consumption as well as vehicle handling.
Tue, 18 Nov 08
Survey Highlights Support For Nanotech In Health Fields But Disapproval Elsewhere
http://feeds.sciencedaily.com/~r/sciencedaily/~3/T7f3mhfoqU4/081113100718.htm
A landmark national survey on the use of nanotechnology for "human enhancement" shows widespread public support for applications of the new technology related to improving human health. However, the survey also shows broad disapproval for nanotech human enhancement research in areas without health benefits.
Tue, 18 Nov 08
Water Vapor Confirmed As Major Player In Climate Change
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wYbGqZaHJYA/081117193013.htm
Water vapor is known to be Earth's most abundant greenhouse gas, but the extent of its contribution to global warming has been debated. Using recent NASA satellite data, researchers have estimated more precisely than ever the heat-trapping effect of water in the air, validating the role of the gas as a critical component of climate change.
Tue, 18 Nov 08
Nicotine: A Receptor From The Past Helping To Develop Drugs Of The Future
http://feeds.sciencedaily.com/~r/sciencedaily/~3/r8ijSqBiA9w/081114185733.htm
Researchers have just determined the structure of a bacterial protein similar to the human nicotine receptor, and have published this result in the journal Nature. This is an important step for the molecular modeling of substances able to interact with this receptor and which could help treatment of nicotine addiction.
Tue, 18 Nov 08
A New Way To Remove Unwanted Heparin From Blood
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EYQ_7G_OTFs/081110181942.htm
Scientists in Poland are reporting development of a potential new way to quickly remove the anticoagulant heparin from patients' blood in order to avoid unwanted side effects that can happen with the current use of that blood thinner.
Tue, 18 Nov 08
Is It A Mini-stroke? Three Clinical Features Identified To Avoid Misdiagnosis Of Transient Ischemic Attacks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VEUW9q4Zsn0/081110171350.htm
Researchers have identified three bedside clinical features that can help more accurately distinguish transient ischemic attacks from disorders that might mimic their symptoms.
Tue, 18 Nov 08
Ethanol Will Curb Farm Income Until Economy Rebounds, Economist Says
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bCNjtlozx5M/081110153944.htm
Ethanol helped drive two years of record profits for grain farmers, but also will hold income down during a looming recession that has already sliced crop prices in half, an economist says.
Tue, 18 Nov 08
More Than Half Of US Chronically Ill Adults Skip Needed Care Due To Costs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ol_HZdn3iJ4/081113075751.htm
Compared to patients in seven other countries, chronically ill adults in the United States are far more likely to forgo care because of costs; they also experience the highest rates of medical errors, coordination problems, and high out-of-pocket costs, according to a new study from the Commonwealth Fund. US patients are significantly more likely to call for fundamental change in their country's health-care system; one-third say the system needs to be rebuilt completely.
Tue, 18 Nov 08
Potential Sexual Partner? Brains Of Ovulating Women Respond Strongly To Male Masculine Faces
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8MAFYFFOqVs/081112074436.htm
Scientists have long known that women's preferences for masculine men change throughout their menstrual cycles. A new study is the first to demonstrate differences in brain activity as women considered masculinized and feminized male faces and whether the person was a potential sexual partner. Researchers identified regions that responded more strongly to masculine faces and demonstrated that differences between masculinized and feminized faces appeared strongest when the women were closer to ovulating.
Tue, 18 Nov 08
Novel Regulatory Step During HIV Replication
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wsGe1BLH02k/081114081012.htm
A previously unknown regulatory step during human immunodeficiency replication provides a potentially valuable new target for HIV/AIDS therapy, according to researchers.
Tue, 18 Nov 08
Music As Noise: When The Fortissimo Causes One's Ears To Ring
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UtKPHOAJopA/081111093924.htm
"Music is always noise-related - and often not appreciated", the German poet and humorist Wilhelm Busch once mocked. Even though the subject involving beauty is a matter of taste, the sarcastic saying contains some bitter truth: Orchestra musicians jeopardize their ears with their own music.
Tue, 18 Nov 08
Age, Race Are Among Factors That Influence Carotid-surgery Success
http://feeds.sciencedaily.com/~r/sciencedaily/~3/asklLLTLe04/081106064356.htm
Advanced age and race are among the factors that can affect whether a patient dies or suffers a stroke after carotid-artery surgery, a multicenter study has found.
Tue, 18 Nov 08
Improving Carbon Measurements In Global Climate Studies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5T8_WJTIuN8/081114134923.htm
Researchers have found a way to improve existing estimates of the amount of carbon absorbed by plants from the air, thereby improving the accuracy of global warming and land cover change estimates, according to a new article in Science.
Tue, 18 Nov 08
Personality Shapes Perception Of Romance, But Doesn't Tell The Whole Story
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vEf6FH_UnCA/081030192849.htm
Researchers have found that measuring the quality of romantic relationships is more complex than earlier studies suggest. While personality has been found to be predictive of perceived relationship satisfaction and success, other measures of relationship quality may offer additional insight into how a romantic relationship is functioning.
Tue, 18 Nov 08
Fiddler Crabs Reveal Honesty Is Not Always The Best Policy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kTffJQ5goYU/081111203501.htm
Dishonesty may be more widespread in the animal kingdom than previously thought. A team of Australian ecologists has discovered that some male fiddler crabs "lie" about their fighting ability by growing claws that look strong and powerful but are in fact weak and puny.
Tue, 18 Nov 08
Tiny Sacs Released By Brain Tumor Cells Carry Information That May Guide Treatment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/926fJ-bwA3I/081116142330.htm
Microvesicles - tiny membrane-covered sacs - released from glioblastoma cells contain molecules that may provide data that can guide treatment of the deadly brain tumor. Researchers have found tumor-associated RNA and proteins in membrane microvesicles called exosomes in blood samples from glioblastoma patients. Detailed analysis of exosome contents identified factors that could facilitate a tumor's growth through delivery of genetic information or proteins, or signify its vulnerability to particular medications.
Tue, 18 Nov 08
The Bonsai Effect: Wounded Plants Make Jasmonates, Inhibiting Cell Division, Stunting Growth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/38aZ0f0_MDg/081111102804.htm
Biologists found that when leaves of the model plant Arabidopsis are wounded, cell division in the apical meristem is reduced, growth of the plant is arrested within days, and the new leaves grow to only one-half of their normal size although the size of leaf cells is unaffected.
Tue, 18 Nov 08
Exercise Improves Quality Of Life For Heart Failure Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VZM7gjF9Tmc/081112113601.htm
Heart failure patients who regularly exercise fare better and feel better about their lives than do similar patients who do not work out on a regular basis, say researchers.
Tue, 18 Nov 08
Chemical From Medicinal Plants May Be Used To Fight HIV
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FcCnZ0v0_9g/081110090619.htm
Immune cells lose the ability to divide as they age because a part of their chromosomes known as a telomere becomes progressively shorter with cell division. As a result, its disease fighting ability is compromised. A new study finds that a chemical from the Astragalus root, frequently used used in Chinese herbal therapy, can prevent or slow this progressive telomere shortening, which could make it a key weapon in the fight against HIV.
Tue, 18 Nov 08
'Cascading Effect' Of Childhood Experiences May Explain Serious Teen Violence
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kAq-Y6NN_VU/081114080928.htm
Adverse experiences early in life can lead to minor childhood behavior problems, which can grow into serious acts of teen violence, according to new research. Children who had social and academic problems in elementary school often had parents who withdrew from supervision and monitoring during middle school. Children then made friends with deviant peers, and ultimately were more likely to engage violent acts.
Tue, 18 Nov 08
Stem Cells With Potential To Regenerate Injured Liver Tissue Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tig9fa0V9eg/081112113710.htm
A novel protein marker has been found that identifies rare adult liver stem cells, whose ability to regenerate injured liver tissue has the potential for cell-replacement therapy. For the first time, researchers have demonstrated that cells expressing the marker can differentiate into both liver cells and cells that line the bile duct.
Tue, 18 Nov 08
No Protective Effect On Cancer From Long-term Vitamin E Or Vitamin C Supplementation, Trial Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/moj8mCTuEMY/081116142328.htm
Data from a large-scale prevention trial has shown no protective effect from vitamin E on prostate cancer or vitamin C supplementation on total cancer.
Tue, 18 Nov 08
Nanotechnology: Quantum Computer May Be Closer With Extended Quantum Lifetime Of Electrons
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EGjiZ1Z2Mgo/081114081220.htm
Physicists have found a way to extend the quantum lifetime of electrons by more than 5,000 per cent. Electrons exhibit a property called 'spin' and work like tiny magnets which can point up, down or a quantum superposition of both. The state of the spin can be used to store information and so by extending their life the research provides a significant step towards building a usable quantum computer.
Tue, 18 Nov 08
T Cell-based HIV Vaccine Candidate Demonstrates Positive Results
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Zok1qoClvMs/081109193352.htm
New findings show that a T cell-based strategy remains a viable course to follow in the development of an HIV-1 vaccine.
Tue, 18 Nov 08
Watching The Wine With New Technology
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lfCxhI-WpLA/081103090855.htm
Steeped in tradition, Europe's vintners have found themselves hard pressed to compete with the modern processes used to produce New World wines. Now European researchers are offering the continent's winemaking industry the opportunity to improve quality, save water and reduce pesticide use without giving up age-old practices.
Mon, 17 Nov 08
Low Concentrations Of Pesticides Can Become Toxic Mixture For Amphibians
http://feedproxy.google.com/~r/sciencedaily/~3/YyIBe6_Yfww/081111183041.htm
Ten of the world's most popular pesticides can decimate amphibian populations when mixed together even if the concentration of the individual chemicals are within limits considered safe, according to new research. Such "cocktails of contaminants" are frequently detected in nature, a new article notes.
Mon, 17 Nov 08
Novel Regulatory Step During HIV Replication
http://feedproxy.google.com/~r/sciencedaily/~3/wsGe1BLH02k/081114081012.htm
A previously unknown regulatory step during human immunodeficiency replication provides a potentially valuable new target for HIV/AIDS therapy, according to researchers.
Mon, 17 Nov 08
Music As Noise: When The Fortissimo Causes One's Ears To Ring
http://feedproxy.google.com/~r/sciencedaily/~3/UtKPHOAJopA/081111093924.htm
"Music is always noise-related - and often not appreciated", the German poet and humorist Wilhelm Busch once mocked. Even though the subject involving beauty is a matter of taste, the sarcastic saying contains some bitter truth: Orchestra musicians jeopardize their ears with their own music.
Mon, 17 Nov 08
Age, Race Are Among Factors That Influence Carotid-surgery Success
http://feedproxy.google.com/~r/sciencedaily/~3/asklLLTLe04/081106064356.htm
Advanced age and race are among the factors that can affect whether a patient dies or suffers a stroke after carotid-artery surgery, a multicenter study has found.
Mon, 17 Nov 08
Improving Carbon Measurements In Global Climate Studies
http://feedproxy.google.com/~r/sciencedaily/~3/5T8_WJTIuN8/081114134923.htm
Researchers have found a way to improve existing estimates of the amount of carbon absorbed by plants from the air, thereby improving the accuracy of global warming and land cover change estimates, according to a new article in Science.
Mon, 17 Nov 08
Personality Shapes Perception Of Romance, But Doesn't Tell The Whole Story
http://feedproxy.google.com/~r/sciencedaily/~3/vEf6FH_UnCA/081030192849.htm
Researchers have found that measuring the quality of romantic relationships is more complex than earlier studies suggest. While personality has been found to be predictive of perceived relationship satisfaction and success, other measures of relationship quality may offer additional insight into how a romantic relationship is functioning.
Mon, 17 Nov 08
Fiddler Crabs Reveal Honesty Is Not Always The Best Policy
http://feedproxy.google.com/~r/sciencedaily/~3/kTffJQ5goYU/081111203501.htm
Dishonesty may be more widespread in the animal kingdom than previously thought. A team of Australian ecologists has discovered that some male fiddler crabs "lie" about their fighting ability by growing claws that look strong and powerful but are in fact weak and puny.
Mon, 17 Nov 08
Tiny Sacs Released By Brain Tumor Cells Carry Information That May Guide Treatment
http://feedproxy.google.com/~r/sciencedaily/~3/926fJ-bwA3I/081116142330.htm
Microvesicles - tiny membrane-covered sacs - released from glioblastoma cells contain molecules that may provide data that can guide treatment of the deadly brain tumor. Researchers have found tumor-associated RNA and proteins in membrane microvesicles called exosomes in blood samples from glioblastoma patients. Detailed analysis of exosome contents identified factors that could facilitate a tumor's growth through delivery of genetic information or proteins, or signify its vulnerability to particular medications.
Mon, 17 Nov 08
The Bonsai Effect: Wounded Plants Make Jasmonates, Inhibiting Cell Division, Stunting Growth
http://feedproxy.google.com/~r/sciencedaily/~3/38aZ0f0_MDg/081111102804.htm
Biologists found that when leaves of the model plant Arabidopsis are wounded, cell division in the apical meristem is reduced, growth of the plant is arrested within days, and the new leaves grow to only one-half of their normal size although the size of leaf cells is unaffected.
Mon, 17 Nov 08
Exercise Improves Quality Of Life For Heart Failure Patients
http://feedproxy.google.com/~r/sciencedaily/~3/VZM7gjF9Tmc/081112113601.htm
Heart failure patients who regularly exercise fare better and feel better about their lives than do similar patients who do not work out on a regular basis, say researchers.
Mon, 17 Nov 08
Chemical From Medicinal Plants May Be Used To Fight HIV
http://feedproxy.google.com/~r/sciencedaily/~3/FcCnZ0v0_9g/081110090619.htm
Immune cells lose the ability to divide as they age because a part of their chromosomes known as a telomere becomes progressively shorter with cell division. As a result, its disease fighting ability is compromised. A new study finds that a chemical from the Astragalus root, frequently used used in Chinese herbal therapy, can prevent or slow this progressive telomere shortening, which could make it a key weapon in the fight against HIV.
Mon, 17 Nov 08
'Cascading Effect' Of Childhood Experiences May Explain Serious Teen Violence
http://feedproxy.google.com/~r/sciencedaily/~3/kAq-Y6NN_VU/081114080928.htm
Adverse experiences early in life can lead to minor childhood behavior problems, which can grow into serious acts of teen violence, according to new research. Children who had social and academic problems in elementary school often had parents who withdrew from supervision and monitoring during middle school. Children then made friends with deviant peers, and ultimately were more likely to engage violent acts.
Mon, 17 Nov 08
Potential Sexual Partner? Brains Of Ovulating Women Respond Strongly To Male Masculine Faces
http://feedproxy.google.com/~r/sciencedaily/~3/8MAFYFFOqVs/081112074436.htm
Scientists have long known that women's preferences for masculine men change throughout their menstrual cycles. A new study is the first to demonstrate differences in brain activity as women considered masculinized and feminized male faces and whether the person was a potential sexual partner. Researchers identified regions that responded more strongly to masculine faces and demonstrated that differences between masculinized and feminized faces appeared strongest when the women were closer to ovulating.
Mon, 17 Nov 08
No Protective Effect On Cancer From Long-term Vitamin E Or Vitamin C Supplementation, Trial Shows
http://feedproxy.google.com/~r/sciencedaily/~3/moj8mCTuEMY/081116142328.htm
Data from a large-scale prevention trial has shown no protective effect from vitamin E on prostate cancer or vitamin C supplementation on total cancer.
Mon, 17 Nov 08
Nanotechnology: Quantum Computer May Be Closer With Extended Quantum Lifetime Of Electrons
http://feedproxy.google.com/~r/sciencedaily/~3/EGjiZ1Z2Mgo/081114081220.htm
Physicists have found a way to extend the quantum lifetime of electrons by more than 5,000 per cent. Electrons exhibit a property called 'spin' and work like tiny magnets which can point up, down or a quantum superposition of both. The state of the spin can be used to store information and so by extending their life the research provides a significant step towards building a usable quantum computer.
Mon, 17 Nov 08
T Cell-based HIV Vaccine Candidate Demonstrates Positive Results
http://feedproxy.google.com/~r/sciencedaily/~3/Zok1qoClvMs/081109193352.htm
New findings show that a T cell-based strategy remains a viable course to follow in the development of an HIV-1 vaccine.
Mon, 17 Nov 08
Watching The Wine With New Technology
http://feedproxy.google.com/~r/sciencedaily/~3/lfCxhI-WpLA/081103090855.htm
Steeped in tradition, Europe's vintners have found themselves hard pressed to compete with the modern processes used to produce New World wines. Now European researchers are offering the continent's winemaking industry the opportunity to improve quality, save water and reduce pesticide use without giving up age-old practices.
Mon, 17 Nov 08
Families, Friends, Schools And Neighborhoods Contribute To Adolescent Alcohol Misuse
http://feedproxy.google.com/~r/sciencedaily/~3/yfzAbKCGqUk/081114080917.htm
A new longitudinal study examined how the four social environments of families, peers, schools, and neighborhoods have positive and negative effects on teen alcohol misuse. The study used periodic interviews with 6,544 teens ages 11-17 across three years, as well as parental information and census data. Characteristics in all four social environments played a role in whether teens misused alcohol. The findings underscore the important role that families play in teens' use of alcohol.
Mon, 17 Nov 08
Stem Cells With Potential To Regenerate Injured Liver Tissue Identified
http://feedproxy.google.com/~r/sciencedaily/~3/tig9fa0V9eg/081112113710.htm
A novel protein marker has been found that identifies rare adult liver stem cells, whose ability to regenerate injured liver tissue has the potential for cell-replacement therapy. For the first time, researchers have demonstrated that cells expressing the marker can differentiate into both liver cells and cells that line the bile duct.
Mon, 17 Nov 08
Men Who Take Aspirin Have Significantly Lower PSA Levels
http://feedproxy.google.com/~r/sciencedaily/~3/wmUeD69FWts/081116142322.htm
The use of aspirin and other non-steroidal anti-inflammatory drugs is significantly associated with lower PSA levels, especially among men with prostate cancer, say researchers at Vanderbilt University.
Mon, 17 Nov 08
Anthropologist Assembles And Copies Skeleton Of Extinct Lemur
http://feedproxy.google.com/~r/sciencedaily/~3/rej8Hl5TD0s/081114201106.htm
Scientists have nearly complete a skeleton of a rare species of extinct lemur. Collecting and casting of the lemur bones and assembling them into a near complete skeleton capped off a process that began in 1899 in the Andrahomana Cave in southeastern Madagascar.
Mon, 17 Nov 08
Potential New Biomarker Of Age-related Macular Degeneration Found
http://feedproxy.google.com/~r/sciencedaily/~3/YKnK00N41ZQ/081109120835.htm
In its advanced stages, AMD destroys the detailed, central vision we need to read, drive, recognize faces, and enjoy daily life, and is a major cause of vision loss in the U.S. Ophthalmic researchers are making rapid progress in understanding how genetics, immune system factors, nutrition choices, and other variables interact to produce or prevent AMD.
Mon, 17 Nov 08
Keeping Bridges Safe: New Imaging Program Automatically Detects Irregularities in Bridges
http://feedproxy.google.com/~r/sciencedaily/~3/cOUB9AR3Szw/081103091028.htm
In order for motorists, cyclists and pedestrians to cross bridges safely, bridges must be regularly inspected for damage. An new image processing program automatically detects irregularities in the bridge material.
Mon, 17 Nov 08
Complex Systems And Mars Missions Help Understand How Life Began
http://feedproxy.google.com/~r/sciencedaily/~3/lKuD7da7cLs/081114081224.htm
Understanding how life started remains a major challenge for science. At a recent European Science Foundation and COST 'Frontiers of Science' conference scientists discussed two new approaches to the problem. The first applies complex systems theory to the chemistry that preceded early life. The second involves studying Mars, which may yield ample evidence about what Earth was like when life evolved.
Mon, 17 Nov 08
Super-tough Sunshield To Fly On The James Webb Space Telescope
http://feedproxy.google.com/~r/sciencedaily/~3/5knmMKbJi4A/081112140415.htm
Imagine sunglasses that can withstand the severe cold and heat of space, a barrage of radiation and high-speed impacts from small space debris. They don't exist, but Northrop Grumman engineers have created a sunshield for NASA's James Webb Space Telescope that can withstand all of those elements. The space telescope needs a sunshield to block heat from the sun so its cameras and instruments can operate properly a million miles from the Earth when it launches in 2013.
Mon, 17 Nov 08
Tackling A Hard-to-treat Childhood Cancer By Targeting Epigenetic Changes
http://feedproxy.google.com/~r/sciencedaily/~3/44XEkMZtlHc/081103120916.htm
A very difficult-to-treat child leukemia turns out to be launched by a small but potent epigenetic change that could potentially be reversed relatively easily with drugs: modification of the histones that help package DNA. Blocking this modification could potentially prevent a variety of cancer-promoting genes from being turned on, say researchers at Children's Hospital Boston.
Mon, 17 Nov 08
Parasite-resistant Peppers Green Alternatives To Chemical Pesticides
http://feedproxy.google.com/~r/sciencedaily/~3/RWEXNEPCglw/081112113603.htm
Root-knot nematodes are microscopic, omnipresent worms that cause major damage to horticultural and field crops in sub-tropical regions, resulting in significant financial losses to growers and gardeners. To combat these parasites without the use of chemical pesticides, scientists are focusing more research on developing new, parasite-resistant varieties of vegetables.
Mon, 17 Nov 08
People Who Develop Kidney Stones Are At Increased Risk For Chronic Kidney Disease
http://feedproxy.google.com/~r/sciencedaily/~3/LPFxqeoFrIs/081108155828.htm
Kidney stones may damage the kidneys and lead to chronic kidney disease (CKD), according to a new article. In extreme cases, individuals with CKD caused by kidney stones may even need dialysis or kidney transplants.
Mon, 17 Nov 08
Cold Atoms Could Replace Hot Gallium In Focused Ion Beams
http://feedproxy.google.com/~r/sciencedaily/~3/-ZsgL2BLfTU/081113140327.htm
Scientists at NIST have developed a radical new method of focusing a stream of ions into a point as small as one nanometer, a versatile ion source that is expected to have broad application in nanotechnology both for carving smaller features on semiconductors than now are possible and for nondestructive imaging of nanoscale structures with finer resolution than currently possible with electron microscopes.
Mon, 17 Nov 08
Traffic Pollution Worsens Symptoms In Asthmatic Children
http://feedproxy.google.com/~r/sciencedaily/~3/FziXLYREv5I/081114081003.htm
Traffic pollution, especially in cities, adversely affects respiratory health in children with asthma. In this vulnerable group, worsening of respiratory symptoms requiring recurrent additional treatment.
Mon, 17 Nov 08
Female Embryonic Sexual Development Driven By Universal Factor
http://feedproxy.google.com/~r/sciencedaily/~3/3LVXEKoBezw/081113140325.htm
A gene essential to the growth and development of most organ systems in the body also is vital to female, but not male, embryonic sexual development, scientists report.
Mon, 17 Nov 08
'Super' Aged Brains Reveal First Secrets Of Sharp Memory In Old Age
http://feedproxy.google.com/~r/sciencedaily/~3/30yrKx_sM2Q/081116142332.htm
Researchers have wondered if the brains of the elderly with still laser sharp memory were different than everyone else's. So, they took a novel approach and investigated what goes right in an aging brain that stays nimble. Scientists examined the brains of deceased people called "super aged" because they had high performance on memory tests when they were over 80. They found their brains had many fewer fiber-like tangles than the brains of elderly, non-demented individuals.
Mon, 17 Nov 08
Freshwater Pollution Costs US At Least $4.3 Billion A Year
http://feedproxy.google.com/~r/sciencedaily/~3/kFVnFWa2M84/081112124418.htm
Researchers found that freshwater pollution by phosphorous and nitrogen costs government agencies, drinking water facilities and individual Americans costs the US at least $4.3 billion annually.
Mon, 17 Nov 08
Visualizing Asthma-causing Immune Cells At Work
http://feedproxy.google.com/~r/sciencedaily/~3/tcY00jxAjcY/081106181411.htm
Immune cells known as eosinophils have a central role in causing asthma. Researchers have now developed new approaches to noninvasively visualize in real-time eosinophil responses in the lungs and airways of mice with a disease that mimics asthma. It is hoped that these approaches might be exploited to improve our ability to diagnose asthma and assess the efficacy of treatments for the disease.
Mon, 17 Nov 08
One Dozen At A Blow: Main Principle For Alloys Discovered
http://feedproxy.google.com/~r/sciencedaily/~3/02bBRBOox_0/081112075039.htm
Molecular metallurgists galvanize and gild atoms and discover main principle for alloys. In the neverland between molecule and metal they discovered a new family of compounds.
Mon, 17 Nov 08
Patients With Anxiety Disorders Think They Have More Physiological Problems Than They Really Have, According To Study
http://feedproxy.google.com/~r/sciencedaily/~3/X7jaVi-gFH4/081113182223.htm
New research shows that patients with serious anxiety disorders (panic disorder with and without agoraphobia, social anxiety disorder or generalized anxiety disorder) think they suffer more physiological (palpitations, sweating, irregular breathing, shaking of the hands and muscular tension, etc.) than they really have. In other words, although many patients with anxiety disorders have orally reported very intense physiological symptoms in surveys and questionaires, they are hyporeactive when real measures of such symptoms are taken through physiological tests.
Mon, 17 Nov 08
'Femtomolar Optical Tweezers' May Enable Sensitive Blood Tests
http://feedproxy.google.com/~r/sciencedaily/~3/rit_x_fFVjw/081113162901.htm
Cutting-edge "tweezers" are so sensitive that they can feel the tell-tale tug of tiny concentrations of pathogens in blood samples, yet don't ever need to be sterilized--or even held--as they are ephemeral and weightless.
Mon, 17 Nov 08
Cancer Treatment May Result In Bone Loss, Study Finds
http://feedproxy.google.com/~r/sciencedaily/~3/mLoM0_C_X2Q/081113140425.htm
A new cross-Canada study has found that breast and prostate cancer treatment can foster bone loss. Scientists explain how loss of bone mass might affect 46,000 people diagnosed with breast and prostate cancer each year and place them at increased risk for osteoporosis and fractures.
Mon, 17 Nov 08
Shifts In Soil Bacterial Populations Linked To Wetland Restoration Success
http://feedproxy.google.com/~r/sciencedaily/~3/28ryVBikU8A/081112113655.htm
Researchers have found that restoring degraded wetlands -- especially those that had been converted into farm fields -- actually decreases soil bacterial diversity. More than half of original wetland acreage in the U.S. has been destroyed or degraded, but some has been restored in recent decades under the federal government's "no net loss" policy.
Mon, 17 Nov 08
Early Development Of Antibodies To Cockroach And Mouse Proteins Associated With Greater Risk For Asthma And Allergies In Preschool Children
http://feedproxy.google.com/~r/sciencedaily/~3/t2muzBP8-wY/081113181334.htm
A new study shows that developing antibodies to cockroach and mouse proteins is associated with a greater risk for wheeze, hay fever, and eczema in preschool urban children as young as three years of age. The study is the first to focus on the links between antibody responses to cockroach and mouse proteins and respiratory and allergic symptoms in such a young age group.
Mon, 17 Nov 08
Forecasting Rain: Radars For Estimating Rainfall Rates
http://feedproxy.google.com/~r/sciencedaily/~3/Oxt7M3pIh1w/081106065555.htm
To be effective, flood warning systems use rainfall data available in real time. These data come from the ground observation network and estimations made based on the national network of climate radars operated by Météo France. Today, mountain zones are only partially covered by this rain detection technology. Within the INTERREG project, a new generation of radars is being tested by Cemagref in the Var department, a mountainous region with a high flood risk. The radar is currently located in the countryside immediately inland from Nice.
Mon, 17 Nov 08
Radical Changes Needed To Increase Number Of Sperm Donors In The UK, Fertility Experts Urge
http://feedproxy.google.com/~r/sciencedaily/~3/3h_9ACBmjCY/081112160915.htm
A radical overhaul of sperm donation services is needed to address the critical shortage of sperm donors in the UK, say two fertility experts.
Mon, 17 Nov 08
Nanowires Ideal For Electronics Manufacturing, Findings Suggest
http://feedproxy.google.com/~r/sciencedaily/~3/C_R2UTve3p4/081113181054.htm
Researchers have discovered that tiny structures called silicon nanowires might be ideal for manufacturing in future computers and consumer electronics because they form the same way every time.
Mon, 17 Nov 08
Using Adult, Embryonic Stem Cells For Tissue Regeneration: New Advances
http://feedproxy.google.com/~r/sciencedaily/~3/VGP7DU7sjTM/081106164816.htm
A major issue in the development of regenerative medicine is the cell sources used to rebuild damaged tissues. In a review of the issue published in Developmental Dynamics, researchers state that inducing regeneration in humans from the body's own tissues by chemical means is feasible, though many questions must be answered before the process can reach clinical status.
Mon, 17 Nov 08
Telemedicine: Researchers Broadcast Live Surgery Using Internet2
http://feedproxy.google.com/~r/sciencedaily/~3/McPQ-OAkdLI/081112160853.htm
Imagine a scenario where doctors from different hospitals can collaborate on a surgery without having to actually be in the operating room. What if doctors in remote locations could receive immediate expert support from top specialists in hospitals around the world? Rochester Institute of Technology is collaborating with a team led by the University of Puerto Rico School of Medicine that recently tested technology, which allows for the transmission of high quality, real time video to multiple locations.
Mon, 17 Nov 08
Damage To Optic Nerve In Glaucoma Patients May Indicate Significant Carotid Artery Narrowing
http://feedproxy.google.com/~r/sciencedaily/~3/LCdY0ltKTR8/081109120537.htm
Glaucoma is often associated with elevated pressure inside the eye (intraocular pressure, or IOP) which can damage the optic nerve, leading to vision loss and even blindness. Medication and/or surgery allow patients to control their IOP, thus preventing the development of vision loss.
Mon, 17 Nov 08
Wildfires Result In Loss Of Forests Reserved By Northwest Forest Plan
http://feedproxy.google.com/~r/sciencedaily/~3/JFybOiP0OoE/081107143853.htm
Scientists recently completed a study and analysis of large-diameter forests and discovered that elevated fire levels in the Pacific Northwest outweighed harvest reductions in the loss of older forests.
Mon, 17 Nov 08
Vision Screening Law For Older Floridians Associated With Lower Fatality Rates In Car Crashes
http://feedproxy.google.com/~r/sciencedaily/~3/pTPACQO82XI/081110163803.htm
A vision screening law targeting Florida drivers age 80 and older appears to be associated with lower death rates from motor vehicle collisions in this age group, despite little evidence of an association between vision and car crashes, according to a new article.
Sun, 16 Nov 08
To Widen Path To Outer Space, Engineers Build Small Satellite
http://feedproxy.google.com/~r/sciencedaily/~3/DtNJfy-NOuI/081113181312.htm
It's not much bigger than a softball and weighs just 2 pounds. But the "pico satellite" being designed and built in a University of Florida aerospace engineering laboratory may hold a key to a future of easy access to outer space -- one where sending satellites into orbit is as routine and inexpensive as shipping goods around the world.
Sun, 16 Nov 08
Key Contributor To Alzheimer's Disease Process Identified
http://feedproxy.google.com/~r/sciencedaily/~3/hMIw1vxJPcQ/081114080926.htm
A professor of neuroscience and ophthalmology led new research identifying a specific function of a fragment of ribonucleic acid, once thought to be no more than a byproduct, in regulating inflammation and the development of Alzheimer's disease.
Sun, 16 Nov 08
Why Shar Pei Dogs Have So Many Wrinkles
http://feedproxy.google.com/~r/sciencedaily/~3/uVv7dBOnCYI/081111163123.htm
Researchers have discovered the origin of the mucinosis present in Shar Pei dogs, a hereditary disorder responsible for the characteristic wrinkles found in this breed. The research report appears in the journals Veterinary Dermatology and Journal of Heredity. The report details the genetic alteration in this breed which multiplies the activity of an enzyme responsible for an excessive production of hyaluronic acid, a substance which gathers under the skin and produces wrinkles.
Sun, 16 Nov 08
No Clear Answer On Why HIV Vaccine Candidates Did Not Lower Risk Of Acquiring HIV
http://feedproxy.google.com/~r/sciencedaily/~3/FFIfy5opMdM/081112194919.htm
In the comprehensive analyses of immune responses to the vaccine, researchers analyzed study participants' blood samples to try to assess why the vaccine did not prevent infection and why some study participants who received the vaccine were more likely than others to develop HIV infection. The vaccine was effective at producing an immune response: 77 percent of those vaccinated who later developed HIV infection while in the study had generated HIV-specific T-cells prior to infection.
Sun, 16 Nov 08
Physicists Test Theory That Explains Why Universe Is Made Of Matter
http://feedproxy.google.com/~r/sciencedaily/~3/hYzcQAAbTdI/081113181325.htm
Physicists are analyzing data from an experiment that tests a theory that won a share of this year's Nobel Prize in Physics. The theory and the data help explain why the universe is made of matter.
Sun, 16 Nov 08
Does Anxiety Increase Risk Of Cardiovascular Disease?
http://feedproxy.google.com/~r/sciencedaily/~3/x9oOj5sI1SE/081112161213.htm
Psychological stress and anxiety have been shown to produce an activation of coagulation and fibrinolysis. Resulting hypercoagulability is a risk factor for cardiovascular diseases, and could therefore contribute to an increased prevalence of coronary artery disease in anxiety patients.
Sun, 16 Nov 08
Dirty Brown Clouds Impact Glaciers, Agriculture And The Monsoon
http://feedproxy.google.com/~r/sciencedaily/~3/AIXX2hUhfyM/081114191911.htm
Cities from Beijing to New Delhi are getting darker, glaciers in ranges like the Himalayas are melting faster and weather systems becoming more extreme, in part, due to the combined effects of man-made Atmospheric Brown Clouds (ABCs) and greenhouse gases in the atmosphere. The brown clouds, the result of burning of fossil fuels and biomass, are in some cases and regions aggravating the impacts of greenhouse gas-induced climate change, says a new report.
Sun, 16 Nov 08
Low Risk For Heart Attack? Could An Ultrasound Hold The Answer?
http://feedproxy.google.com/~r/sciencedaily/~3/p6_TMi-DlNg/081111183029.htm
By adding the results of an imaging technique to the traditional risk factors for coronary heart disease, doctors found they were able to improve prediction of heart attacks in people previously considered low risk.
Sun, 16 Nov 08
3D 'Nanobamas' Smaller Than A Grain Of Salt
http://feedproxy.google.com/~r/sciencedaily/~3/UBOODoJKCwg/081114200628.htm
A professor has created 3-D portraits of the president-elect that are smaller than a grain of salt. He calls them "nanobamas."
Sun, 16 Nov 08
New Biomarker For Heart Failure Identified
http://feedproxy.google.com/~r/sciencedaily/~3/T7qcZYJ6VcY/081112113553.htm
Blood levels of resistin, a hormone produced by fat cells, can independently predict an individual's risk of heart failure, according to research results from the Health ABC (Aging and Body Composition) study, which followed 3000 elderly people in the Pittsburgh and Memphis areas over seven years starting in 1998.
Sun, 16 Nov 08
SHIMMER Successfully Observes Earth's Highest Clouds
http://feedproxy.google.com/~r/sciencedaily/~3/eZ-A5qp4gv0/081113140432.htm
The Naval Research Laboratory's Spatial Heterodyne Imager for Mesospheric Radicals has successfully observed a second northern season of polar mesospheric clouds, which are the Earth's highest clouds. This successful observation fulfills the primary goal of the Space Test Program Satellite-1 Extended Mission.
Sun, 16 Nov 08
Analysis Shows How Cap-and-trade Plans Can Cut Greenhouse Emissions
http://feedproxy.google.com/~r/sciencedaily/~3/xiMLfPMyAOc/081113140435.htm
Researchers at MIT's Center for Energy and Environmental Policy Research have produced a report concerning key design issues of proposed "cap-and-trade" programs that are under consideration in the United States as a way of curbing greenhouse gas emissions.
Sun, 16 Nov 08
Brisk Walk Could Help Chocoholics Stop Snacking
http://feedproxy.google.com/~r/sciencedaily/~3/6uKLnj6FT20/081111112101.htm
A walk of just fifteen minutes can reduce chocolate cravings. The benefits of exercise in helping people manage dependencies on nicotine and other drugs have previously been recognized. Now, for the first time, newly-published research shows that the same may be true for food cravings.
Sun, 16 Nov 08
New Theory May Lead To Effective Heart Failure Treatments
http://feedproxy.google.com/~r/sciencedaily/~3/MI0uwYaPjW0/081112113559.htm
A family of proteins called matrix metalloprotienase may play a crucial role in why the supporting tissue surrounding the heart, called the myocardium, goes through significant and deleterious effects in heart failure patients.
Sun, 16 Nov 08
Electrical Drive Systems: World Record Of One Million Revolutions Per Minute Set
http://feedproxy.google.com/~r/sciencedaily/~3/QhnJEC7PKac/081114081213.htm
In future it can be expected that the drill used in material processing will become even faster and the compressor used for vehicles and airplanes even more compact. In order to drive these rotary applications directly, efficiently and in a controlled fashion, there must be electrical drive systems with the appropriate rpm and engine power. Up to now, industrially-deployed motors have normally reached 250,000 revolutions per minute. Now, however, researchers from ETH Zurich's Department of Power Electronics have developed a drive system in cooperation with its industrial partners that can achieve over 1,000,000 rpm.
Sun, 16 Nov 08
Dual Treatment For Stroke Leads To Improved Recovery Rates, Reduced Mortality
http://feedproxy.google.com/~r/sciencedaily/~3/h12binoUFMc/081112124407.htm
It appears that stroke patients who receive both intravenous thrombolysis, a minimally invasive treatment that dissolves abnormal blood clots, and endovascular interventions, such as drugs and implanting medical devices, are much more likely to recover and have lower chances of dying, according to new research.
Sun, 16 Nov 08
Measuring Water From Space
http://feedproxy.google.com/~r/sciencedaily/~3/qdW28m38ZGQ/081113080001.htm
Observations from satellites now allow scientists to monitor changes to water levels in the sea, in rivers and lakes, in ice sheets and even under the ground. As the climate changes, this information will be crucial for monitoring its effects and predicting future impacts in different regions.
Sun, 16 Nov 08
Doctors' Questions About End-of-life Legalities May Result In Patient Pain
http://feedproxy.google.com/~r/sciencedaily/~3/P5MaEhcyWto/081113100716.htm
When treatment options dwindle or are exhausted, terminally ill-patients often opt for pain management and comfort over life-extending therapies. However, researchers report that a lack of thorough understanding about the laws governing end-of-life care may be leaving many medical providers with an ethical dilemma and causing some terminally-ill patients considerable, unnecessary pain.
Sun, 16 Nov 08
Protein Compels Ovarian Cancer Cells To Cannibalize Themselves
http://feedproxy.google.com/~r/sciencedaily/~3/f8hSUHU0jy0/081115083209.htm
A protein known to inhibit the growth of ovarian cancer works in part by forcing cancer cells to eat themselves until they die, researchers report in Cancer Research.
Sat, 15 Nov 08
Predatory Bacterial Swarm Uses Rippling Motion To Reach Prey
http://feedproxy.google.com/~r/sciencedaily/~3/OaJFWZELxwM/081029121820.htm
Like something from a horror movie, the swarm of bacteria ripples purposefully toward their prey, devours it and moves on. Researchers are studying this behavior in Myxococcus xanthus, a bacterium commonly found in soil, which preys on other bacteria.
Sat, 15 Nov 08
Major Advance In Cancer Radiotherapy
http://feedproxy.google.com/~r/sciencedaily/~3/S0iIixbpXhU/081107071959.htm
Radical improvements in outcome for many cancer sufferers are in prospect following one of the most significant advances in radiotherapy since x-rays were first used to treat a tumor in 1904. The use of charged particles as an alternative to x-ray or gamma ray radiation can extend the scope of radiotherapy to tumors previously requiring invasive surgery, while speeding up diagnosis and reducing collateral damage to surrounding tissue.
Sat, 15 Nov 08
Repairing DNA Damage: Researchers Discover Critical Process In Cancer Treatment
http://feedproxy.google.com/~r/sciencedaily/~3/y7sqt3rSghM/081106122404.htm
From the sun's UVA rays to tobacco smoke, our environment is chock-full of DNA-damaging agents that can lead to cancer. Thanks to our body's DNA repair mechanisms, however, the effects of many carcinogens can be reversed thereby preventing the formation of tumours. Now, scientists have identified a new biochemical pathway which controls DNA repair.
Sat, 15 Nov 08
Predictive Tests And Early Treatment Delay Progression Of Blood Cell Cancer, Researchers Find
http://feedproxy.google.com/~r/sciencedaily/~3/mtMwJ7_aTOU/081106164814.htm
Mayo Clinic researchers say they have moved closer to their goal of providing personalized care for a common blood cell cancer. They have found that the use of predictive biomarkers along with two targeted treatments significantly delays the need for conventional chemotherapy in patients with early-stage, but high-risk, chronic lymphoid leukemia.
Sat, 15 Nov 08
Alternative Fuels: Retooled Approach May Make Bio-based Butanol More Competitive With Ethanol
http://feedproxy.google.com/~r/sciencedaily/~3/cZ_W5Bgo2O4/081031212844.htm
A modified method of producing biobutanol could make the fuel more competitive with ethanol as a clean-burning alternative to gasoline.
Sat, 15 Nov 08
Doctors Must Look After Their Health, Too, Study Recommends
http://feedproxy.google.com/~r/sciencedaily/~3/qDs0dh5rvtw/081112160905.htm
Short term counseling followed by a modest cut in work hours may help reduce emotional exhaustion and sick leave in doctors, according to a new study.
Sat, 15 Nov 08
Mysterious Microbe May Play Important Role In Ocean Ecology
http://feedproxy.google.com/~r/sciencedaily/~3/VhitSg7lNzA/081113181037.htm
An unusual microorganism discovered in the open ocean may force scientists to rethink their understanding of how carbon and nitrogen cycle through ocean ecosystems. Researchers characterized the new microbe by analyzing its genetic material and said it appears to be an atypical member of the cyanobacteria that fixes nitrogen but lacks the genes for photosynthesis.
Sat, 15 Nov 08
Unraveling Mystery Of Brain Aneurysms
http://feedproxy.google.com/~r/sciencedaily/~3/R-3Ow0Hk00E/081109193344.htm
Researchers have taken the first critical steps in unraveling the mysteries of brain aneurysms, the often fatal rupturing of blood vessels that afflicts 500,000 people worldwide each year and nearly killed Vice President-elect Joseph Biden two decades ago.
Sat, 15 Nov 08
Clicking Knees Are Antelopes' Way Of Saying 'Back Off'
http://feedproxy.google.com/~r/sciencedaily/~3/uOmp9wPugMk/081103192407.htm
Knee clicking can establish mating rights among antelopes. A study of eland antelopes has uncovered the dominance displays used by males to settle disputes over access to fertile females, without resorting to genuine violence.
Sat, 15 Nov 08
Improving Diagnosis Of Genetic Disorders
http://feedproxy.google.com/~r/sciencedaily/~3/ysnbVIiiKSE/081106153536.htm
An Australian-led global initiative to improve the diagnosis of genetic disorders and reduce errors in the reporting of genetic variations has just been published in the scientific journal Science.
Sat, 15 Nov 08
New Nanocluster To Boost Thin Films For Semiconductors
http://feedproxy.google.com/~r/sciencedaily/~3/LKPYM5lElPs/081031141522.htm
Researchers have synthesized an elusive metal-hydroxide compound in sufficient and rapidly produced yields, potentially paving the way for improved precursor inks that could boost semiconductor capabilities for large-area applications.
Sat, 15 Nov 08
Caring For The Caregiver: Redefining The Definition Of Patient
http://feedproxy.google.com/~r/sciencedaily/~3/sL9a_pa7Occ/081110153940.htm
One quarter of all family caregivers of Alzheimer's disease patients succumb to the stress of providing care to a loved one and become hospital patients themselves, according to a new study in the Journal of General Internal Medicine.
Sat, 15 Nov 08
Protecting Neurons Could Halt Alzheimer's, Parkinson's Diseases
http://feedproxy.google.com/~r/sciencedaily/~3/RtX-P8nz2e8/081113181430.htm
Researchers have identified a group of chemical compounds that slow the degeneration of neurons, a condition behind old-age diseases like Alzheimer's, Parkinson's and amyotrophic lateral sclerosis (ALS).
Sat, 15 Nov 08
Herpes Drug Inhibits HIV Replication, But With A Price
http://feedproxy.google.com/~r/sciencedaily/~3/YDVnhlXCEzw/081106153636.htm
The anti-herpes drug acyclovir can also directly slow down HIV infection by targeting the reverse transcriptase enzyme, researchers report. This beneficial effect does pose a risk though, as HIV-infected cells treated with acyclovir promote the emergence of multi-drug resistant HIV variants.
Sat, 15 Nov 08
Impact Of Climate Warming On Fish
http://feedproxy.google.com/~r/sciencedaily/~3/58VjMwyDAko/081106064631.htm
International consensus on the reality of climate change is now apparent: global warming is ascribable in large part to human activities. It is causing rapid deterioration of the environment and is increasing the threat to biodiversity. However, the mechanisms of its impact are still poorly known, particularly in the aquatic environment. At Cemagref, two researchers, who have been analysing the freshwater fish community over the two last decades, have observed profound changes that are more intense and long-lasting than predicted.
Sat, 15 Nov 08
Therapy May Block Expansion Of Breast Cancer Cells
http://feedproxy.google.com/~r/sciencedaily/~3/2Drx5YxZYXI/081105164312.htm
Breast cancer stem cells are known to be involved in therapy resistance and the recurrence of cancerous tumors. A new study shows the mechanisms governing stem cell expansion in breast cancer (called Notch activity), and finds that therapy targeting a protein called cyclin D1 may block the expansion of cancerous stem cells.
Sat, 15 Nov 08
New Treatment Method For Canine Eye Diseases Developed
http://feedproxy.google.com/~r/sciencedaily/~3/0AneGCQ4rXc/081028132630.htm
Researchers are exploring a new method of getting medicine to the eyes of infected dogs that is more effective and reliable than using eye drops.
Sat, 15 Nov 08
With GPS, They Know Where You Are
http://feedproxy.google.com/~r/sciencedaily/~3/XZmPox1PWs0/081110071243.htm
How can we keep our personal location private in a society where GPS-enabled devices and internet-connected computing is ubiquitous? That is the question posed by a computing and legal specialist in Belgium.
Sat, 15 Nov 08
Vitamin C Lowers Levels Of Inflammation Biomarker Considered Predictor Of Heart Disease
http://feedproxy.google.com/~r/sciencedaily/~3/n1EUXBnkTFc/081113091630.htm
For people who have elevated levels of C-reactive protein, a predictor of heart disease, taking vitamin C supplements can help lower levels of the inflammation biomarker, according to a new study. The new findings come just days after a major, eight-year clinical trial failed to show that vitamins C or E could cut the risk of heart attacks or strokes.
Sat, 15 Nov 08
Iron-based Materials May Unlock Superconductivity’s Secrets
http://feedproxy.google.com/~r/sciencedaily/~3/3kgdHVqbzI0/081113140422.htm
Researchers at NIST are decoding the mysterious mechanisms behind the high-temperature superconductors that industry hopes will find wide use in next-generation systems for storing, distributing and using electricity.
Sat, 15 Nov 08
Gender Is Key Factor In Determining Overall Survival Of Lung Cancer Patients
http://feedproxy.google.com/~r/sciencedaily/~3/IaenkKqn2vs/081113091613.htm
Even though some combinations of gender, race and/or marital status can factor into the overall survival of nonoperative non-small cell lung cancer patients, gender is the most significant factor impacting overall survival, according to a study presented at the 2008 Chicago Multidisciplinary Symposium in Thoracic Oncology, sponsored by ASTRO, ASCO, IASLC and the University of Chicago.
Sat, 15 Nov 08
'Arid Aquaculture' Among Livelihoods Promoted To Relieve Worsening Pressure On World's Drylands
http://feedproxy.google.com/~r/sciencedaily/~3/kCnqpqFUHcE/081111073841.htm
Using ponds filled with salty, undrinkable water for fish production is one of several options proven effective as an alternative livelihood in parts of the world's expanding drylands. Researchers say alternatives to traditional crop farming and livestock rearing need to be put in place in drylands to mitigate human causes of desertification.
Sat, 15 Nov 08
Disease Modeling: Mathematical Models Resolve Controversy Over Nicotine Addiction
http://feedproxy.google.com/~r/sciencedaily/~3/IhlFvoXkCvs/081112074901.htm
Human disease research produces an enormous amount of data from different sources such as animal models, high throughput genetic screening of human tissue, and in vitro laboratory experiments. This data operates at different levels and scales including genes, molecules, cells, tissues and whole organs, embodying a huge amount of potentially valuable insight that current computer modeling approaches often fail to exploit properly.
Sat, 15 Nov 08
Pelvis Dated To 1.2 Million Years Ago Shows Ancestors May Have Been Born With Big Heads
http://feedproxy.google.com/~r/sciencedaily/~3/hu2GfVqF0tM/081113181152.htm
Discovery of the most intact female pelvis of Homo erectus may cause scientists to reevaluate how early humans evolved to successfully birth larger-brained babies. A reconstruction of the 1.2 million-year-old pelvis discovered in 2001 in the Gona Study Area at Afar, Ethiopia, that has led researchers to speculate early man was better equipped than first thought to produce larger-brained babies. The actual fossils remain in Ethiopia.
Sat, 15 Nov 08
By Combining Technologies, Researchers Rapidly Hunt Down And Find New Genes That Lead To Cancer
http://feedproxy.google.com/~r/sciencedaily/~3/ZQJl34MVSPg/081113140308.htm
Using a new approach that combines scientific technologies to hunt down genetic changes involved in cancer, researchers have discovered 13 tumor suppressor genes that, when mutated, can lead to liver cancers. Twelve of those genes had never been linked to cancer before, according to a new study.
Sat, 15 Nov 08
Breakthrough In Cell-type Analysis Offers New Ways To Study Development And Disease
http://feedproxy.google.com/~r/sciencedaily/~3/G1GrKaKovDw/081113140323.htm
Many diseases are very particular about the types of cells they attack, laying waste to one population while sparing its nearly identical neighbors for no apparent reason. New research for the first time enables scientists to carefully study the biomolecular differences among types of cells in order to learn what makes some susceptible to attack and others resistant.
Sat, 15 Nov 08
Luminescence Shines New Light On Proteins
http://feedproxy.google.com/~r/sciencedaily/~3/hcpc_0Mnkw0/081111093927.htm
A chance discovery by a team of scientists using optical probes means that changes in cells in the human body could now be seen in a completely different light.
Sat, 15 Nov 08
How Our Senses Combine To Give Us A Better View Of The World
http://feedproxy.google.com/~r/sciencedaily/~3/o74VkWWUCEo/081112194925.htm
Although each of our five senses seem to be their own entity, recent studies have indicated that our senses blend together, to help us better perceive our environment. New findings reveal that if a stimulation of the leg is not initially detected, this sensation may be perceived by the addition of a visual or auditory signal. Additionally, a tactile stimulus combined with a specific level of auditory stimulation results in optimal detection of that sensation.
Sat, 15 Nov 08
Turning Urine Into Water For Space Station Recycling
http://feedproxy.google.com/~r/sciencedaily/~3/IRLT7CwqJ9w/081111210838.htm
Two hundred and fifty miles above the Earth puts you a long way from the nearest kitchen tap. And at $15,000 a pint, the cost of shipping fresh water aboard the space shuttle is, well, astronomical.
Sat, 15 Nov 08
Controllers Cheer As Data Arrive From NASA's Spirit Rover
http://feedproxy.google.com/~r/sciencedaily/~3/wGcBzV4YTo0/081114084831.htm
NASA's Mars Exploration Rover Spirit communicated via the Mars Odyssey orbiter Nov. 13 right at the time when ground controllers had told it to, prompting shouts of "She's talking!" among the rover team at NASA's Jet Propulsion Laboratory, Pasadena, Calif.
Fri, 14 Nov 08
Dinosaur Whodunit: Solving A 77-million-year-old Mystery
http://feedproxy.google.com/~r/sciencedaily/~3/d0O7XTZOLww/081113181200.htm
It has all the hallmarks of a Cretaceous melodrama. A dinosaur sits on her nest of a dozen eggs on a sandy river beach. Water levels rise, and the mother is faced with a dilemma: Stay or abandon her unhatched offspring to the flood and scramble to safety?
Fri, 14 Nov 08
Sleep Apnea May Be Risk Factor For Sudden Cardiac Death
http://feedproxy.google.com/~r/sciencedaily/~3/Zxjv_v7IGwI/081110112158.htm
After studying the sleep characteristics of nearly 11,000 adults in an overnight sleep laboratory, researchers suggest that obstructive sleep apnea -- and, in particular, the low nighttime oxygen saturation of the blood it causes -- may be a risk factor for sudden cardiac death.
Fri, 14 Nov 08
Corralling The Carbon Cycle: Calculating How Much Carbon Dioxide Is Absorbed And Released By Plants
http://feedproxy.google.com/~r/sciencedaily/~3/Dh-72fMPwOg/081113181050.htm
Scientists may have overcome a major hurdle to calculating how much carbon dioxide is absorbed and released by plants, vital information for determining the amount of carbon that can be safely emitted by human activities. The problem is that ecosystems simultaneously take up and release CO2. The key finding is that the compound carbonyl sulfide, which plants consume in tandem with CO2, can be used to quantify gas flow into the plants during photosynthesis.
Fri, 14 Nov 08
Multiple Sclerosis: In The War Against Diseases, Nerve Cells Need Their Armor
http://feedproxy.google.com/~r/sciencedaily/~3/JxxXTIO-3AA/081112113659.htm
Researchers have discovered an essential mechanism for the maintenance of the normal structure of myelin, the protective covering that insulates and supports nerve cells (neurons).
Fri, 14 Nov 08
Prototyping With Industrial Robots
http://feedproxy.google.com/~r/sciencedaily/~3/nYPFTj8QicM/081110112107.htm
A shipping company must exercise patience whenever it needs a new a ship's propeller: its production is time consuming because a foundry workers must first fashion a model and a mold based on it. Industrial robots will support them in the future.
Fri, 14 Nov 08
Plastic Surgeons Warn Of Malnutrition In Body Contouring Patients
http://feedproxy.google.com/~r/sciencedaily/~3/yEdDU8qdcPA/081113075749.htm
Optimizing nutrition with the addition of supplements, such as powder drinks and multivitamin tablets formulated for massive weight loss patients, is vital to successful body contouring surgery, according to new research.
Fri, 14 Nov 08
How Eating Red Meat Can Spur Cancer Progression: New Mechanism Identified
http://feedproxy.google.com/~r/sciencedaily/~3/XEDXX0pVwoY/081113181428.htm
Researchers have shown a new mechanism for how human consumption of red meat and milk products could contribute to the increased risk of cancerous tumors. Their findings suggest that inflammation resulting from a molecule introduced through consumption of these foods could promote tumor growth.
Fri, 14 Nov 08
Alzheimer's Gene Slows Brain's Ability To Export Toxic Protein
http://feedproxy.google.com/~r/sciencedaily/~3/n7xeUU9_ENk/081113181202.htm
The only known genetic risk factor for Alzheimer's disease slows down the brain's ability to export a toxic protein known as amyloid-beta that is central to the damage the disease causes, scientists have found. The research provides new clues into the workings of a protein known as apolipoprotein E4, or ApoE4, which increases the risk of getting Alzheimer's disease.
Fri, 14 Nov 08
Nanoparticles In The Home: More And Smaller Than Previously Detected
http://feedproxy.google.com/~r/sciencedaily/~3/0w3p0V4S3Aw/081113140418.htm
Extremely small nanoscale particles are released by common kitchen appliances in abundant amounts, greatly outnumbering the previously detected, larger-size nanoparticles emitted by these appliances, according to new findings by NIST researchers.
Fri, 14 Nov 08
Common Anesthetic Induces Alzheimer's-associated Changes In Mouse Brains
http://feedproxy.google.com/~r/sciencedaily/~3/8XGzUY1pjIA/081112124410.htm
For the first time researchers have shown that a commonly used anesthetic can produce changes associated with Alzheimer's disease in the brains of living mammals, confirming previous laboratory studies. Scientists have shown how administration of the gas isoflurane can lead to generation of the toxic amyloid-beta protein in the brains of mice.
Fri, 14 Nov 08
Improved Measurements Could Mean Safer, More Reliable Electroshock Weapons
http://feedproxy.google.com/~r/sciencedaily/~3/dghV0IPx-6M/081113140420.htm
Electroshock weapons, such as stun guns and other similar devices that temporarily incapacitate a person by delivering a high-voltage, low-current electric shock, have helped law enforcement officers safely subdue dangerous or violent persons for years. Researchers at NIST are working toward a standard method for accurately assessing the electrical output of these devices, the results of which can be used in establishing baselines for future medical and safety studies.
Fri, 14 Nov 08
Raising Alcohol Taxes Reduces Deaths, Study Finds
http://feedproxy.google.com/~r/sciencedaily/~3/on6vTR6gdkU/081113181029.htm
Raising taxes on beer, wine and liquor immediately reduces the number of deaths from alcohol-related diseases such as liver disease, oral or breast cancers, and alcohol poisoning, according to a new study published in the online edition of the American Journal of Public Health.
Fri, 14 Nov 08
Mineral Kingdom Has Co-evolved With Life, Scientists Find
http://feedproxy.google.com/~r/sciencedaily/~3/-VcivsakFic/081113181035.htm
Evolution isn't just for living organisms. Scientists have found that the mineral kingdom co-evolved with life, and that up to two thirds of the more than 4,000 known types of minerals on Earth can be directly or indirectly linked to biological activity. The finding could aid scientists in the search for life on other planets.
Fri, 14 Nov 08
Cigarette Smoke Could Alter Shape Of Heart
http://feedproxy.google.com/~r/sciencedaily/~3/J7Nm-hsKItY/081113181432.htm
Prolonged exposure to cigarette smoke can increase levels of the stress hormone norepinephrine and enzymes in the heart that have the potential to reshape the left ventricle, according to new research.
Fri, 14 Nov 08
Innovative Surgery Provides New Lease On Life To Dogs
http://feedproxy.google.com/~r/sciencedaily/~3/uG-BOG4vp2I/081031122500.htm
Jake, an 11-year-old yellow Labrador retriever, was the first dog in the Midwest and only the 11th in the world to undergo surgery for a new, cementless elbow prosthesis last April. The procedure, done at MSU's Veterinary Teaching Hospital by a veterinary orthopedic surgeon, has left Jake pain-free from elbow arthritis.
Fri, 14 Nov 08
Novel Four-drug Combination Proves Safe For Lung Cancer Treatment
http://feedproxy.google.com/~r/sciencedaily/~3/Hk85h-um43Y/081113091627.htm
The four-drug combination of carboplatin and paclitaxel, with the targeted therapies bevacizumab and cetuximab, is safe and may improve survival for patients with advanced lung cancer, according to a new study.
Fri, 14 Nov 08
Lead-flapping Objects Experience Less Wind Resistance Than Their Trailing Counterparts
http://feedproxy.google.com/~r/sciencedaily/~3/5HDpVJdCxrQ/081107143618.htm
From the Tour de France to NASCAR, competitors and fans know that speed is only part of the equation. Strategy -- and the ability to use elements like aerodynamic drafting, which makes it easier to follow closely behind a leader than to be out in front -- is also critical. New research shows that two or more flexible objects in a flow -- flags flapping in the wind, for example -- experience drag very differently from rigid objects in a similar flow.
Fri, 14 Nov 08
Violent Video Games Affect Boys' Biological Systems, Study Finds
http://feedproxy.google.com/~r/sciencedaily/~3/MCvgDDL0wSU/081113101424.htm
Both heart rate and sleep in boys are affected by violent video games. In the study boys (12-15) were asked to play two different video games at home in the evening. The boys' heart rate was registered, among other parameters. It turned out that the heart rate variability was affected to a higher degree when the boys were playing games focusing on violence compared with games without violent features.
Fri, 14 Nov 08
Fish Choose Their Leaders By Consensus
http://feedproxy.google.com/~r/sciencedaily/~3/Bki-EtxNUIg/081113140310.htm
Just after Americans have headed to the polls to elect their next president, a new report in Current Biology reveals how one species of fish picks its leaders: Most of the time they reach a consensus to go for the more attractive of two candidates.
Fri, 14 Nov 08
'Two-headed' Antibody Poses A Double Threat To Breast Cancer Cells, Say Researchers
http://feedproxy.google.com/~r/sciencedaily/~3/kbXuYssxVCY/081113181332.htm
A small, antibody-like molecule created by researchers can successfully attack two separate molecules on the surface of cancer cells at the same time, halting the growth of breast cancer cells in laboratory tests, the researchers say. The molecule, nickname "ALM," might be a means of slowing cancer spread or, as the researchers believe, a guidance system for imaging the spread of cancer or delivering more aggressive drugs.
Fri, 14 Nov 08
Space Researchers Developing Tool To Help Disoriented Pilots
http://feedproxy.google.com/~r/sciencedaily/~3/3LlxZURNaVA/081113140427.htm
Confusion of the senses can lead to serious consequences for airplane pilots. This perception problem, known as spatial disorientation, is also a major concern for astronaut pilots, especially those who will perform lunar landings. Scientists and engineers are developing a tool that will provide real-time assistance to pilots during spatial disorientation events in Earth's atmosphere and in space.
Fri, 14 Nov 08
High-normal Phosphate Levels Linked To Early Atherosclerosis
http://feedproxy.google.com/~r/sciencedaily/~3/5aKRjH4X6YU/081113111216.htm
Healthy adults with higher levels of phosphate in the blood are more likely to have increased levels of calcium in the coronary arteries, a key indicator of atherosclerosis and future cardiovascular disease risk, reports a new study.
Fri, 14 Nov 08
New Research Expected To Improve Laser Devices And Make Photovoltaics More Efficient
http://feedproxy.google.com/~r/sciencedaily/~3/K2g8oGfSdaI/081113111225.htm
Scientists have induced electrons in the nanocrystals of semiconductors to cool more slowly by forcing them into a smaller volume. This has the potential to improve satellite communications and the generation of solar power. Slowing down the cooling of these electrons -- in this case, by more than 30 times -- could lead to a better infrared laser source and increase the bandwidth of communication satellites. It also could lead to more efficient photovoltaic devices.
Fri, 14 Nov 08
Wasabi Receptor Can Sense Ammonia That Causes Pain
http://feedproxy.google.com/~r/sciencedaily/~3/xvsN0llsjtI/081113181209.htm
A Japanese research group has found that the receptor for hot taste of wasabi, Japanese horseradish usually eaten with sushi, can sense alkaline pH caused by a base such as ammonia.
Fri, 14 Nov 08
Marine Plankton Found In Amber
http://feedproxy.google.com/~r/sciencedaily/~3/FDRLwH3X1oM/081112161206.htm
Marine microorganisms have been found in amber dating from the middle of the Cretaceous period. The fossils were collected in Charente, in France. This completely unexpected discovery will deepen our understanding of these lost marine species as well as providing precious data about the coastal environment of Western France during the Cretaceous.
Fri, 14 Nov 08
Molecule Linked To Aggressive Cancer Growth And Spread Identified
http://feedproxy.google.com/~r/sciencedaily/~3/L-NO0NYNPpg/081113181046.htm
Researchers have found a genetic marker that controls an enzyme present in aggressive and metastatic cancer.
Fri, 14 Nov 08
Small Islands Given Short Shrift In Assembling Archaeological Record
http://feedproxy.google.com/~r/sciencedaily/~3/9q0XZOymgvM/081030144633.htm
Small islands dwarf large ones in archaeological importance, says a University of Florida researcher, who found that people who settled the Caribbean before Christopher Columbus preferred more minute pieces of land because they relied heavily on the sea.
Fri, 14 Nov 08
Differing Genetic Makeup Of Lung Cancer In African-American Patients Shown
http://feedproxy.google.com/~r/sciencedaily/~3/Cpb2VzIMiGc/081113091623.htm
The tumors of African-American non-small cell lung cancer patients are more likely to carry a higher number of copies of the epidermal growth factor receptor gene and fewer mutations of EGFR itself than Caucasians according to a new study.
Fri, 14 Nov 08
Fire Risk: Close-up On Habitat–forest Interfaces
http://feedproxy.google.com/~r/sciencedaily/~3/TZdC9DzbBvQ/081106122820.htm
In the French Mediterranean region, scattered habitations are gradually gaining on the forest, increasing the risk of fire start-ups and creating new elements that need protection. In Aix-en-Provence, Cemagref has developed a quasi-automatic method to map habitat–forest interfaces. This tool is of primary interest to land use managers and the actors involved in the fight against forest fires to prevent risk as well as to protect populations and property in case of fire.
Fri, 14 Nov 08
Risky Decision-making Essential To Entrepreneurialism, Scientists Conclude
http://feedproxy.google.com/~r/sciencedaily/~3/2fQNNEwpE0I/081112140401.htm
Whether someone will become the next Richard Branson, Steve Jobs or Henry Ford may be down to whether they make risky decisions, scientists have concluded.
Fri, 14 Nov 08
Light Triggers New Code For Brain Cells
http://feedproxy.google.com/~r/sciencedaily/~3/SmijhtYEg2c/081112140359.htm
Brain cells can adopt a new chemical code in response to cues from the outside world. Dark tadpoles blanch when exposed to bright light. Cells in the tadpole brain respond to illumination by making dopamine, a neurotransmitter that is recognized by the system that controls pigmentation. The discovery opens the possibility that brain chemistry could be selectively altered by stimulating specific circuits to remedy low levels of neural chemicals that underlie some human ailments.
Fri, 14 Nov 08
Possible Link Between Diabetes And Pelvic Girdle Syndrome
http://feedproxy.google.com/~r/sciencedaily/~3/qQV7nyqzKhM/081113100714.htm
Diabetes appears to be linked with an increased risk of pelvic girdle syndrome. A new study shows that five percent of women had serious pelvic girdle syndrome during their last pregnancy. Three percent reported that they had diabetes, while diabetes was seen in only 0.5 percent of women who had not had the syndrome. Women with diabetes had a seven times higher risk of severe pelvic girdle syndrome.
Fri, 14 Nov 08
Satellites Helping Aid Workers In Honduras
http://feedproxy.google.com/~r/sciencedaily/~3/RxlKSTAIgvw/081031112041.htm
Humanitarian aid workers responding to devastating flooding in Honduras have received assistance from space, with satellite images of affected areas provided rapidly following activation of the International Charter on Space and Major Disasters.
Fri, 14 Nov 08
Proton Therapy And Concurrent Chemotherapy May Reduce Bone Marrow Toxicity In Advanced Lung Cancer
http://feedproxy.google.com/~r/sciencedaily/~3/9EvDPP18wa8/081113091615.htm
Patients treated for locally advanced nonsmall cell lung cancer who receive chemotherapy and proton beam therapy have fewer instances of bone marrow toxicity than patients who receive the standard treatment of intensity-modulated radiation and concurrent chemotherapy, according to researchers.
Fri, 14 Nov 08
New Device To Improve Transistor Quality
http://feedproxy.google.com/~r/sciencedaily/~3/-5uSE1ELUSM/081105083538.htm
A new configurable chip which can correct faults in newly- manufactured transistors and can be implemented in mainstream devices such as mobile phones and computers, has been developed by engineers at the University of Southampton.
Fri, 14 Nov 08
Watching Television, Channeling Unhappiness?
http://feedproxy.google.com/~r/sciencedaily/~3/ilOXyn3N90s/081113080006.htm
Are happy or unhappy people more attracted to television? A new 30-year study shows unhappy people watch more TV, while happy people read more newspapers and socialize more. The relationship between happiness and television viewing becomes particularly noteworthy, since in theory, engaging in a highly enjoyable activity time like watching television should improve the quality of people's lives.
Fri, 14 Nov 08
Species Diversity Of Enigmatic 'Flying Lemurs' Doubled By New Study
http://feedproxy.google.com/~r/sciencedaily/~3/hsLOBGY7-QA/081110153612.htm
Colugos, the closest living relatives of primates most notable for their ability to glide from tree to tree over considerable distances, are more diverse than had previously been believed, according to a new report in Current Biology.
Fri, 14 Nov 08
Nanoparticles Trigger Cell Death?
http://feedproxy.google.com/~r/sciencedaily/~3/Y8zFoC3ku4E/081113100710.htm
Nanoparticles that are one milliard of a meter in size are widely used, for example, in cosmetics and food packaging materials. There are also significant amounts of nanoparticles in exhaust emissions. New findings give rise to concern that nanoparticles carry potential health hazards.
Fri, 14 Nov 08
Dalmatian Bladder Stones Caused By Gene That Regulates Uric Acid In Humans
http://feedproxy.google.com/~r/sciencedaily/~3/Y2JosY8hAiY/081107071818.htm
A gene mutation that causes high levels of uric acid in all Dalmatian dogs and bladder stones in some Dalmatians, has been identified. The discovery equips dog breeders with the tools to eliminate that trait from the Dalmatian breed and yields clues to the cause of similar problems in humans.
Fri, 14 Nov 08
Eye Conditions Linked With Obstructive Sleep Apnea
http://feedproxy.google.com/~r/sciencedaily/~3/cUDyi_cThmg/081110154040.htm
Numerous studies have shown a connection between sleep disorders and medical conditions such as cardiovascular disease, cerebrovascular disease, and metabolic disorders, including the risk of obesity and diabetes mellitus.
Fri, 14 Nov 08
High Temperatures Decrease Antifungal Properties Of Contact Solution
http://feedproxy.google.com/~r/sciencedaily/~3/BAmQ1adCKc4/081110163805.htm
Exposure to prolonged temperature elevation reduces antifungal activity of a contact lens solution that was implicated in the epidemic of the eye infection Fusarium keratitis that occurred between 2004 and 2006, according to a new article.
Fri, 14 Nov 08
Sweepstakes Are For The Lucky, Not Every Customer, Researchers Say
http://feedproxy.google.com/~r/sciencedaily/~3/fQ0d4L1QWCw/081112113701.htm
Using a test that probed consumers' beliefs in luck, researchers investigated the question of who the best prospects are for "lucky draw" in their article appearing in the journal Psychology & Marketing.
Fri, 14 Nov 08
Hubble Directly Observes A Planet Orbiting Another Star
http://feedproxy.google.com/~r/sciencedaily/~3/tMdf4ybbQUI/081113151456.htm
NASA's Hubble Space Telescope has taken the first visible-light snapshot of a planet circling another star. Estimated to be no more than three times Jupiter's mass, the planet, called Fomalhaut b, orbits the bright southern star Fomalhaut, located 25 light-years away in the constellation Piscis Australis (the Southern Fish).
Fri, 14 Nov 08
Protein Identified That Turns Off HIV-fighting T Cells
http://feedproxy.google.com/~r/sciencedaily/~3/uEccz5yPMXw/081110112058.htm
In HIV-infected patients, the body's immune system is unable to fight off the virus. A new study shows that T cells in HIV-infected individuals express a protein called TIM-3, which inactivates their virus killing capacity. Blocking this protein, the study suggests, might one day help patients to eliminate HIV as well as other chronic infections.
Fri, 14 Nov 08
Pond Snail Programmed To Be Left Or Right 'Handed'
http://feedproxy.google.com/~r/sciencedaily/~3/gvDQkK48hPY/081111203507.htm
Just like humans, the pond snail is genetically programmed to use the left- or right-handed side of its brain to perform different tasks, new research reveals.
Fri, 14 Nov 08
Epstein-Barr Virus Associated With Inflammatory Diseases Of The Mouth
http://feedproxy.google.com/~r/sciencedaily/~3/eoY3LEUYnkw/081110171344.htm
Researchers have found that a significant percentage of dental patients with the inflammatory diseases irreversible pulpitis and apical periodontitis also have the Epstein-Barr virus. The Epstein-Barr virus is an important human pathogen found in more than 90 percent of the world population. It is associated with many diseases, including infectious mononucleosis, malignant lymphomas and naspharyngeal carcinoma.
Fri, 14 Nov 08
Liquid Or Solid? Charged Nanoparticles In Lipid Membrane Decide
http://feedproxy.google.com/~r/sciencedaily/~3/axGE0rOvJ-k/081110190649.htm
Patchiness in phospholipid membranes is fundamental to their use as biomolecules and biosensors. Using charged nanoparticles, researchers at the University of Illinois have found a new way to stimulate patchiness in phospholipid membranes.
Fri, 14 Nov 08
Those Were The Days: Counteracting Loneliness With Nostalgia
http://feedproxy.google.com/~r/sciencedaily/~3/w9URR0mgviw/081112124422.htm
All of us are struck with nostalgic feelings from time to time but a new study indicates that nostalgia may serve a greater purpose than just taking us back to the good old days. The results showed that individuals who felt the loneliest turned out to be the most nostalgic. The findings suggest that nostalgia amplifies perceptions of social support, and in this way, counteracts feelings of loneliness.
Wed, 12 Nov 08
New Path Found To Antibiotics In Dirt
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272405/081111211446.htm
A teaspoon of dirt contains an estimated 10,000 species of bacteria, but it's only one percent of these microbial bugs -- the ones that can be grown easily in a lab -- that have brought us antibiotics, anticancer agents and other useful drugs.
Wed, 12 Nov 08
Stem Cells From Monkey Teeth Can Stimulate Growth And Generation Of Brain Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272408/081111142606.htm
Researchers have discovered dental pulp stem cells can stimulate growth and generation of several types of neural cells. Findings suggest dental pulp stem cells show promise for use in cell therapy and regenerative medicine, particularly therapies associated with the central nervous system.
Wed, 12 Nov 08
Commercial Poultry Lack Genetic Diversity, Are Vulnerable To Avian Flu And Other Threats
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272409/081103192314.htm
As concerns such as avian flu, animal welfare and consumer preferences impact the poultry industry, the reduced genetic diversity of commercial bird breeds increases their vulnerability and the industry's ability to adapt, according to a genetics expert. Native birds however, might be able to restock poultry industry's genetic stock.
Wed, 12 Nov 08
Nature’s Own Chemical Plant
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272413/081110171443.htm
Crude oil is getting more and more expensive, a fact clearly felt by the chemical industry. An alternative source of carbon is biomass, for instance colza and whey, which can likewise be used to produce chemical products.
Wed, 12 Nov 08
Airport Malaria: Cause For Concern In U.S.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272414/081111183035.htm
"Airport malaria" is a term coined by researchers to explain the more recent spread of malaria to areas such as the United States and Europe, which some scientists credit to warmer climate changes.
Wed, 12 Nov 08
New Technology Could Revolutionize Breast Cancer Screening
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272415/081111203503.htm
The world's first radar breast imaging system that could revolutionize the way women are scanned for breast cancer is currently under clinical trial. Scientists have been working for a number of years to develop a breast-imaging device which uses radio waves and therefore has no radiation risk unlike conventional mammograms.
Wed, 12 Nov 08
Fatty Diet During Pregnancy Makes New Cells In Fetal Brain That Cause Early Onset Obesity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272416/081111182915.htm
A study in rats shows that exposure to a high-fat diet during pregnancy produces permanent changes in the offspring's brain that lead to overeating and obesity early in life. This surprising finding provides a key step toward understanding mechanisms of fetal programming involving the production of new brain cells that may help explain the increased prevalence of childhood obesity during the last 30 years.
Wed, 12 Nov 08
New Method Can Capture Catalysis, One Molecule At A Time
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272417/081110170318.htm
Researchers have developed an ingenious microscopic method to observe the behavior of single nanoparticles of a catalyst, down to the resolution of single catalytic events.
Wed, 12 Nov 08
Antibiotic Use Increases At Academic Medical Centers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272419/081110163801.htm
Antibacterial drug use appears to have increased at academic medical centers between 2002 and 2006, driven primarily by greater use of broad-spectrum agents and the antibiotic vancomycin, according to a new article.
Wed, 12 Nov 08
New Nanomaterial Could Be Breakthrough For Implantable Medical Devices
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272420/081111073839.htm
Researchers have made a breakthrough that could lead to new dialysis devices and a host of other revolutionary medical implants. The researchers have found that the unique properties of a new material can be used to create new devices that can be implanted into the human body, including blood glucose sensors for diabetics and artificial hemo-dialysis membranes that can scrub impurities from the blood.
Wed, 12 Nov 08
Football Players: Staying Active May Lower Health Risks For Large, Retired Athletes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272421/081111102757.htm
Retired NFL players have fewer heart disease risk factors overall, but higher cholesterol and glucose levels. Physical activity may have prevented the development of higher rates of diabetes or greater amounts of atherosclerosis. Since today's players are 50 percent larger than 25 years ago, further study is needed on whether current players are at greater risk for cardiovascular events or death, researchers said.
Wed, 12 Nov 08
Ice Age Beasts In Europe: Migration Of The Woolly Rhinoceros Earlier Than Assumed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272422/081111093919.htm
The newly described skull of the oldest woolly rhinoceros in Europe shows that these giant creatures -- with two impressively large horns on the bridge of their noses -- once roamed across central Germany. The large shaggy mammals grazed at the foot of the Kyffhäuser range, whose unforested, rocky slopes loomed out of the broad, bleak plains of northern Thuringia 460,000 years ago. The climate at this time was icy cold and far drier than today.
Wed, 12 Nov 08
Genetic Blueprint Revealed For Kidney Design And Formation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272423/081110153617.htm
Researchers have generated the first comprehensive genetic blueprint of a forming mammalian organ, shedding light on the genetic and molecular dynamics of kidney development.
Wed, 12 Nov 08
'Liquid Mirror' Advance May Lead To Better Eye Exams, Improved Telescopes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272424/081110181903.htm
Scientists in Canada are reporting progress toward a new type of "liquid mirror" -- mirrors made with highly reflective liquids -- whose shape can be changed to provide superior optical properties over conventional solid mirrors.
Wed, 12 Nov 08
Positive Results In Phase 2 Trial Of Treatment Of C-difficile-associated Diarrhea
http://feeds.sciencedaily.com/~r/sciencedaily/~3/441110305/081103102301.htm
A Phase 2 trial of an anti-C. difficile antibody combination treatment in patients with C. difficile associated diarrhea successfully met its primary objective. The top-line results from the recently completed multi-center, randomized, double-blind, placebo-controlled Phase 2 trial indicated a statistically significant reduction in recurrences of CDAD when compared with placebo.
Wed, 12 Nov 08
Round Gobies: Alien Fish In Swedish Waters
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272425/081028132100.htm
A round goby (Neogobius melanostomus) was caught in late July off the Swedish coast near Karlskrona. This is the first find of its kind in Sweden. The species, which originates from the Black Sea and probably spread to the Baltic via ballast water, has been found in the Gulf of Gdansk since 1990, in the southern Baltic.
Wed, 12 Nov 08
Previous Abortions And Exercise: Do They Affect Pregnancy?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272426/081111102802.htm
Women who have had two or more induced abortions have a reduced risk of pre-eclampsia by 60 percent. It is not currently understood to what degree physical activity during pregnancy protects against pre-eclampsia, compared to previous studies.
Wed, 12 Nov 08
Evolution's New Wrinkle: Proteins With 'Cruise Control' Act Like Adaptive Machines
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272428/081111183039.htm
Scientists has discovered that chains of proteins found in most living organisms act like adaptive machines, possessing the ability to control their own evolution. The research, which appears to offer evidence of a hidden mechanism guiding the way biological organisms respond to the forces of natural selection, provides a new perspective on evolution, the scientists said.
Wed, 12 Nov 08
Obese Kids' Artery Plaque Similar To Middle-aged Adults
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272433/081111142558.htm
The plaque buildup in the neck arteries of obese children or those with high cholesterol is similar to levels in middle-aged adults. Using ultrasound images, researchers equated the "vascular age" to be 45 years old in these children. Obese children who have high triglycerides are the most likely to have prematurely aging arteries; these children should be treated as high risk for cardiovascular disease, researchers concluded.
Wed, 12 Nov 08
Rocket Launching To Investigate The Northern Lights
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449517906/081111074650.htm
Airplanes that fly over the northern polar region can risk losing radio contact for several hours when the northern lights are at their most active in the skies. In the near future a professor from the University of Oslo will launch a Norwegian rocket to find the explanation for this. The aim is to set up reliable warning routines.
Wed, 12 Nov 08
Muscular Dystrophy: Sarcospan, A Little Protein For A Big Problem
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272434/081103084038.htm
The overlooked and undervalued protein, sarcospan, just got its moment in the spotlight. Researchers now show that adding it to muscle cells might ameliorate the most severe form of muscular dystrophy.
Wed, 12 Nov 08
Intelligent Airlines Meet Passenger Needs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/445457029/081107072007.htm
As airports become stretched to capacity and calls mount for new runways and terminals, a computer scientist in Greece has designed a system that could ensure as many seats as possible are filled on each flight and no one is left stranded at check-in.
Wed, 12 Nov 08
What Happens In Vegas? Place As A Risk Factor For Suicide
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272435/081111130839.htm
The vast majority of recent studies on suicide have focused on identifying psychiatric risk factors. However, a new study in Social Science and Medicine, explores time and place as factors in suicide by closely analyzing the patterns of suicide in a single geographic area, Las Vegas, over a 30 year period.
Wed, 12 Nov 08
Joyful Music May Promote Heart Health
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272436/081111182904.htm
Listening to your favorite music may be good for your cardiovascular system. Researchers have shown for the first time that the emotions aroused by joyful music have a healthy effect on blood vessel function. The research team concluded that the cardiovascular benefits of music were similar to those found in their previous study of laughter.
Wed, 12 Nov 08
Genetic Basis For Some Birth Defects Uncovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272437/081110190653.htm
Scientists have uncovered a common genetic pathway for a number of birth defects that affect the development of the heart and head. Abnormal development of the jaw, palate, brain and heart are relatively common congenital defects and frequently arise due to genetic errors that affect a key developmental pathway.
Wed, 12 Nov 08
Loggerhead Turtle Release To Provide Vital Information To Scientific Community
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272438/081103130933.htm
Biologists will release two juvenile loggerhead sea turtles raised in captivity into the Indian River Lagoon near Sebastian Inlet. Dubbed Milton and FeeBee, the turtles were part of a sex ratio study.
Wed, 12 Nov 08
Flu Shot Protects Kids, Even During Years With A Bad Vaccine Match
http://feeds.sciencedaily.com/~r/sciencedaily/~3/441046747/081103084111.htm
Children who receive all recommended flu vaccine appear to be less likely to catch the respiratory virus that the CDC estimates hospitalizes 20,000 children every year. This study found that, even though the 2003-2004 and 2004-2005 flu seasons had poor matches between the vaccine and the circulating flu strains, the shots were clearly protective during the 2004-05 year and possibly even during the 2003-04 year.
Wed, 12 Nov 08
Femtosecond, Chirped Laser Pulse Trains Could Reduce Decoherence
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272439/081110171346.htm
A physics professor is proposing to use femtosecond, chirped laser pulse trains to reduce decoherence. Controlling coherence can overcome current barriers in a variety of fields, from quantum computing to molecular selective bio-imaging.
Wed, 12 Nov 08
Minority Children Waiting For Heart Transplants Have Higher Death Rates
http://feeds.sciencedaily.com/~r/sciencedaily/~3/450272440/081111182850.htm
Minority children on the waitlist for a heart transplant have a greater risk of dying than white children do. Socioeconomic factors explain only a small fraction of this increased risk. When all factors including race, area income and insurance were simultaneously considered, children with Medicaid insurance were 20 percent more likely to die while awaiting transplant.
Wed, 12 Nov 08
Annual Plants Converted Into Perennials
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447889385/081109193431.htm
Scientists have succeeded in converting annual plants into perennials. They discovered that the deactivation of two genes in annuals led to the formation of structures that converted the plant into a perennial. This was most likely an important mechanism in plant evolution, initiating the formation of trees.
Wed, 12 Nov 08
Alzheimer’s-associated Plaques Found In Symptom-free Older Adults
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449575131/081110163818.htm
Pittsburgh Compound B, an imaging agent that could facilitate the early diagnosis of Alzheimer's disease, has been used to identify amyloid deposition in the brains of clinically older adults. The findings could not only shed more light on how the illness progresses, but also open the door to the possibility of prevention strategies.
Wed, 12 Nov 08
Southern Wall Of Jerusalem That Dates To Time Of Hasmonean Dynasty Discovered On Mount Zion
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449575133/081110190511.htm
An exciting discovery in Jerusalem constituting extraordinary remains of the wall of the city from the time of the Second Temple (second century BCE-70 CE) that was built by the Hasmonean kings and was destroyed during the Great Revolt, and also the remains of a city wall from the Byzantine period (324-640 CE) which was built on top of it, were uncovered in an extensive excavation that is currently underway on Mount Zion.
Wed, 12 Nov 08
Refractive Surgical Practices In HIV-Positive Persons
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448386523/081110065746.htm
People who are HIV-positive are now living longer, healthier lives, thanks to antiretroviral therapy and other treatment advances, and the number of HIV-positive people seeking LASIK, intraocular lenses following cataract removal, and similar procedures is likely to grow in coming years.
Wed, 12 Nov 08
Scientific Community Called Upon To Resolve Debate On ‘Net Energy’ Once And For All
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449575136/081107140503.htm
“Net energy is a (mostly) irrelevant, misleading and dangerous metric,” says the editor-in-chief of Biofuels, Bioresources and Biorefining.
Wed, 12 Nov 08
Top Scientific Meeting Urges Coordinated Response To Economic And Environmental Crises
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449575139/081106121953.htm
A fix for the economy must address ecological threats, a top international scientific meeting here has urged. Human society is moving dangerously beyond the planet's natural limits in a striking parallel to the financial debt crisis. "We're running the planet like a subprime loan," Dr. Johan Rockstrom of the Stockholm Resilience Center said. A coordinated response would reduce the risks of both kinds of crises in the future.
Wed, 12 Nov 08
Telescope Views Glowing Stellar Nurseries
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449517905/081111074654.htm
An APEX telescope image reveals how an expanding bubble of ionized gas about ten light-years across is causing the surrounding material to collapse into dense clumps that are the birthplaces of new stars. Sub-millimeter light is the key to revealing some of the coldest material in the universe, such as these cold, dense clouds.
Wed, 12 Nov 08
First Trial Of Gene Therapy For Advanced Heart Failure Shows Promising Results
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449575140/081110171342.htm
Phase I results of the first clinical trial of gene therapy for patients with advanced heart failure show the approach to be promising, with improvements in several measures of the condition's severity.
Wed, 12 Nov 08
Gold Earring 2,000 Years Old Discovered In Excavations In Jerusalem
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449575141/081110173709.htm
A 2,000 year old gold earring inlaid with pearls and precious stones was discovered in excavations that the Israel Antiquities Authority is conducting in the Giv'ati car park at the City of David, in the "Walls around Jerusalem National Park". The earring, which is made of a coiled gold hoop, has a large inlaid pearl in its center.
Wed, 12 Nov 08
Cancer Risk From Cardiac CT Overstated, Researchers Say
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449575143/081110112146.htm
Radiology and cardiovascular researchers have presented new data that shows the risk of cancer from exposure to radiation during computed tomography for cardiovascular disease has been overstated and that new estimates are several times lower than previously published conclusions.
Wed, 12 Nov 08
Without Enzyme, Biological Reaction Essential To Life Takes 2.3 Billion Years
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449517908/081111073845.htm
All biological reactions within human cells depend on enzymes. Their power as catalysts enables biological reactions to occur usually in milliseconds. But how slowly would these reactions proceed spontaneously, in the absence of enzymes -- minutes, hours, days? And why even pose the question?
Wed, 12 Nov 08
Obese Women More Impulsive Than Other Females, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449575144/081110164040.htm
A new study finds that obese women display significantly weaker impulse control than normal weight women.
Wed, 12 Nov 08
Forced Evolution: Can We Mutate Viruses To Death?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449575145/081110154034.htm
Can scientists create a designer drug that forces viruses to mutate themselves out of existence? A new study by bioengineers could help make it happen. The study offers the most comprehensive mathematical analysis to date of the mechanisms that drive evolution in viruses and bacteria, and it could help scientists who are looking to add "lethal mutagenesis" to medicine's disease-fighting arsenal.
Wed, 12 Nov 08
New Insights Into Thalidomide-birth Defect Episode
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449575146/081110181711.htm
Scientists in Germany have discovered why the medication thalidomide appeared safe in animal tests before going on the market 50 years ago, only to cause perhaps the most extensive outbreak of drug-induced birth defects in medical history.
Wed, 12 Nov 08
Obese People At Increased Risk Of Cardiovascular Disease, Even If They Don't Have High Cholesterol Or Diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449575147/081110153716.htm
Obese people who don't have high cholesterol or diabetes might think they're healthy -- despite the extra pounds. But new research suggests that obesity raises levels of the hormone leptin, which can be as big a threat to the cardiovascular system as cholesterol.
Wed, 12 Nov 08
Interaction Between Gene Variants May Alter Brain Function In Schizophrenia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449575148/081107143757.htm
Scientists are giving what may be the first look at how interactions between genes underlie a key symptom of schizophrenia, impaired working memory. Functional imaging studies reveal how a combination of common variants in two genes is associated with reduced activity of important brain structures in schizophrenia patients but not in normal controls.
Wed, 12 Nov 08
New Approach In Tsunami-early Warning System
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449575149/081110153720.htm
The newly implemented Tsunami Early Warning System for the Indian Ocean, German Indonesian Tsunami Early Warning System, goes into operation November 10 and with this, the system enters its final phase of optimization.
Wed, 12 Nov 08
Blood Pressure Control Inequality Linked To Deaths Among African Americans
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449575150/081110190651.htm
Racial disparity in the control of hypertension contributes to the deaths of almost 8,000 African American men and women in the United States annually, according to a first-of-its-kind study.
Tue, 11 Nov 08
Limb Loss In Lizards: Evidence For Rapid Evolution
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167508/081110223331.htm
Small skink lizards, Lerista, demonstrate extensive changes in body shape over geologically brief periods. New research shows that several species of these skinks have rapidly evolved an elongate, limbless body form.
Tue, 11 Nov 08
Babies Placed In Incubators Decrease Risk Of Depression As Adults
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167509/081110153725.htm
Babies who receive incubator care after birth are two to three times less likely to suffer depression as adults according to a surprising new study published in the journal Psychiatry Research.
Tue, 11 Nov 08
Web-spinning Spiders And 'Wannabe Butterflies' Head To Space Shuttle
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167510/081110154042.htm
A NASA space shuttle mission carrying a payload of web-spinning spiders and wannabe butterflies will be closely monitored by hundreds of K-12 students from Colorado's Front Range after Endeavour launches from Florida for the International Space Station Nov. 14.
Tue, 11 Nov 08
Heart's Surplus Energy May Help Power Pacemakers, Defibrillators
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167511/081110112049.htm
Researchers have shown that a beating heart may produce enough energy to power a pacemaker or defibrillator. An experimental microgenerator captured enough surplus heart energy to provide 17 percent of the power needed to run an implantable pacemaker. Generator refinements could yield smaller, longer-lasting, and more sophisticated implantable devices.
Tue, 11 Nov 08
Protein 'Tubules' Free Avian Flu Virus From Immune Recognition
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167512/081105135235.htm
A protein found in the virulent avian influenza virus strain called H5N1 forms tiny tubules in which it "hides" the pieces of double-stranded RNA formed during viral infection, which otherwise would prompt an antiviral immune response from infected cells, researchers report.
Tue, 11 Nov 08
Getting Little Sleep May Be Associated With Risk Of Heart Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167513/081110163756.htm
Sleeping less than seven and a half hours per day may be associated with future risk of heart disease, according to a new article. In addition, a combination of little sleep and overnight elevated blood pressure appears to be associated with an increased risk of the disease.
Tue, 11 Nov 08
Strong Education Blunts Effects Of Alzheimer's Disease, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167514/081110164044.htm
A test that reveals brain changes believed to be at the heart of Alzheimer's disease has bolstered the theory that education can delay the onset of the dementia and cognitive decline that are characteristic of the disorder.
Tue, 11 Nov 08
New Laser Technique Seals And Heals Wounds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167515/081110153722.htm
Not much has changed in the last 2,000 years when it comes to suturing together cuts and wounds. Even with microsurgery techniques, infection and permanent scarring remain major concerns. Now a new laser technique has been developed that seals and heals wounds.
Tue, 11 Nov 08
Almost Frictionless Gears With Liquid Crystal Lubricants
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167516/081110112140.htm
Lubricants in bearings and gear units ensure that not too much energy is lost through friction. Yet it still takes a certain percentage of the energy to compensate for friction losses. Lubricants made of liquid crystals could reduce friction to almost zero.
Tue, 11 Nov 08
Daily Rhythms In Blood Vessels May Explain Morning Peak In Heart Attacks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167517/081110112051.htm
Daily rhythms in the activity of cells that line blood vessels may help explain why heart attacks and strokes occur most often in early morning hours, researchers have found.
Tue, 11 Nov 08
Revegetation Of Native Flora More Successful If Genetically Diverse Seed Added
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167518/081107140458.htm
The answer to successful revegetation of native flora is in sourcing genetically diverse seed not necessarily relying on remnant local native vegetation to provide seed.
Tue, 11 Nov 08
In The Absence Of Sexual Prospects, Parasitic Male Worms Go Spermless
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167519/081110153615.htm
When females aren't around, one species of parasitic nematode worm doesn't even bother to make any sperm, reveals a new report.
Tue, 11 Nov 08
Bacteria In Mouth Help Make Certain Foods Tasty
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167520/081110181811.htm
Scientists in Switzerland are reporting that bacteria in the human mouth play a role in creating the distinctive flavors of certain foods. They found that these bacteria actually produce food odors from odorless components of food, allowing people to fully savor fruits and vegetables.
Tue, 11 Nov 08
Cancer Drugs May Build And Not Tear Down Blood Vessels
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447889384/081109193433.htm
Scientists have thought that one way to foil a tumor from generating blood vessels to feed its growth -- a process called angiogenesis -- was by creating drugs aimed at stopping a key vessel growth-promoting protein. But now the opposite seems to be true.
Tue, 11 Nov 08
Deep Sea Expedition Sets Sail
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167521/081110164123.htm
Researchers are embarking upon an extreme adventure, plunging deep into the sea to study hydrothermal vents on the ocean floor. They'll share the experience with 20,000-plus school children through interactive sessions.
Tue, 11 Nov 08
Vitamins E And C Supplements Not Effective For Prevention Of Cardiovascular Disease In Men
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447932096/081109193427.htm
Neither vitamin E nor vitamin C supplements reduced the risk of major cardiovascular events in a large, long-term study of male physicians, according to a new study.
Tue, 11 Nov 08
Clouds Can Predict Climate Changes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448386519/081110071245.htm
The properties of clouds can be a key to predicting coming climate changes. The earth's climate field is regulated by the balance between incoming solar radiation and outbound heat radiation. The aerosol content of the atmosphere, that is, the proportion of particles in the air, functions as a regulator: cooling off by reflecting incoming light, warming up by absorbing the outbound heat radiation. But clouds also impact the climate.
Tue, 11 Nov 08
1918 Spanish Flu Records Could Hold The Key To Solving Future Pandemics
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167522/081110112149.htm
Ninety years after Australian scientists began their race to stop the spread of Spanish flu in Australia, University of Melbourne researchers are hoping records from the 1918 epidemic may hold the key to preventing future deadly pandemic outbreaks.
Tue, 11 Nov 08
Mars Phoenix Lander Finishes Successful Work On Red Planet
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167523/081110174141.htm
NASA's Phoenix Mars Lander has ceased communications after operating for more than five months. As anticipated, seasonal decline in sunshine at the robot's arctic landing site is not providing enough sunlight for the solar arrays to collect the power necessary to charge batteries that operate the lander's instruments.
Tue, 11 Nov 08
Scientists Map Molecular Regulation Of Fat-cell Genetics
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167524/081104140912.htm
A research team has used state-of-the-art genetic technology to map thousands of positions where a molecular "master regulator" of fat-cell biology is nestled in DNA to control genes in these cells.
Tue, 11 Nov 08
Chandrayaan-1 Now In Lunar Orbit
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167525/081110153942.htm
Chandrayaan-1, the Indian Space Research Organisation's lunar orbiter, was captured into orbit around the Moon on Nov. 8. One day later, the spacecraft performed a maneuver that lowered the closest point of its orbit down to 200 km from the Moon.
Tue, 11 Nov 08
Important Steps Towards Development Of Human Vaccine Against Malaria
http://feeds.sciencedaily.com/~r/sciencedaily/~3/438292556/081030203245.htm
Every day 2000 children die from malaria in Africa alone. The infection is transmitted from human to human by biting mosquitoes and remains one of the world's most devastating diseases. Despite many years of effort a vaccine is still not available but is urgently needed.
Tue, 11 Nov 08
Economic Incentives For Analysts Play Role In Determining Street Earnings
http://feeds.sciencedaily.com/~r/sciencedaily/~3/449167526/081107143620.htm
Researchers have found that analysts' self-interests often influence the value of street earnings, which makes street earnings less useful for predicting future earnings of high-growth stocks.
Tue, 11 Nov 08
Eliminating Soda From School Diets Does Not Affect Overall Consumption
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448342378/081110065752.htm
With childhood obesity increasing, school administrators and public health officials are reducing availability of sugar-sweetened beverages in schools. In a new study in the Journal of Nutrition Education and Behavior, researchers found that reduction or elimination of sugar-sweetened beverages from school menus has little effect on total consumption by adolescents.
Tue, 11 Nov 08
Astonishing Life In Ocean's Depths: Major Progress Made Towards Historic Census Of Marine Life
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448540998/081109193334.htm
In a report on progress toward the first Census of Marine Life, more than 2,000 scientists from 82 nations announce astonishing examples of recent new finds from the world's ocean depths. Among revelations in fourth interim global highlights report are the Antarctic ancestry of many octopus species and the discovery of Behemoth bacteria, colossal sea stars and mammoth mollusks.
Tue, 11 Nov 08
Quintet Of Proteins Forms New, Early-warning Blood Test Before Heart Attack Strikes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447603124/081109122529.htm
Biochemists have identified a mixed bag of five key proteins out of thousands secreted into blood draining from the heart's blood vessels that may together or in certain quantities form the basis of a far more accurate early warning test than currently in use of impending heart attack in people with severely reduced blood flow, or ischemia.
Tue, 11 Nov 08
Modeling Ice Cream Production In The Search For Innovation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448598160/081106122829.htm
The production of ice cream, a seemingly simple product, brings into play a variety of complex hydrodynamic and thermic processes, with as yet poorly known interactions. To assist industry in making new products, Cemagref scientists have developed a simulator, the size of a yogurt cup, capable of miming the entire production chain.
Tue, 11 Nov 08
Impact Of Insulin Pump Under Study
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448598161/081104180931.htm
Using an insulin pump to manage diabetes is more convenient than managing the disease with daily insulin injections. That much, physicians already know. But the pump's impact on the lives of diabetics and their primary caregivers is an important question that hasn't been answered yet, researchers say.
Tue, 11 Nov 08
How 'Molecular Machines' Kick Start Gene Activation Revealed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448598162/081106121941.htm
How "molecular machines" inside cells swing into action to activate genes at different times in a cell's life is revealed in new research published in Molecular Cell.
Tue, 11 Nov 08
Dead Famous: 18th Century Obituaries Sparked Modern Cult Of Celebrity, Research Says
http://feeds.sciencedaily.com/~r/sciencedaily/~3/443322874/081105083547.htm
Research by the University of Warwick shows how death gave birth to the modern cult of celebrity as the sudden rise in the popularity of obituaries of unusual people in the 1700s provided people with the 18th Century equivalent of a celebrity magazine.
Tue, 11 Nov 08
Can Vitamins And Minerals Prevent Hearing Loss?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448598163/081110112103.htm
Researchers and physicians at the University of Michigan Kresge Hearing Research Institute are hoping to reverse a rising trend of noise-induced hearing loss with a cocktail of vitamins and the mineral magnesium that has shown promise as a possible way to prevent hearing loss caused by loud noises.
Tue, 11 Nov 08
Bone Marrow Transplant Can Cure Sickle Cell Disease, Children's Hospital Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448598164/081107143750.htm
A unique approach to bone marrow transplantation has proven to be the only safe and effective cure for sickle cell disease, according to a new study.
Tue, 11 Nov 08
Engineered Killer T Cell Recognizes HIV-1's Lethal Molecular Disguises
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447932102/081109193340.htm
Researchers have engineered T cells able to recognize HIV-1 strains that have evaded the immune system. The findings have important implications for developing new treatments for HIV, especially for patients with chronic infection who fail to respond to antiretroviral regimens.
Tue, 11 Nov 08
Seven Years Without A Nose
http://feeds.sciencedaily.com/~r/sciencedaily/~3/445457031/081107072001.htm
Patients whose nose has been destroyed by a tumor or injury carry a severe psychological and social burden. Esthetic reconstruction ranges among the most challenging tasks in plastic surgery. Researchers have presented the different options for nasal reconstruction surgery.
Tue, 11 Nov 08
Untangling DNA Regulation: Biologists Theorize Role For DNA Packaging In Stem Cell Development
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448598165/081106121949.htm
Biologists have discovered that the organization of DNA's packing material plays a critical role in directing stem cells to become different types of adult cells.
Tue, 11 Nov 08
World Needs Climate Emergency Backup Plan, Says Expert
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448598166/081107143851.htm
In submitted testimony to the British Parliament, climate scientist said that while steep cuts in carbon emissions are essential to stabilizing global climate, there also needs to be a backup plan. Geoengineering solutions such as injecting dust into the atmosphere are risky, but may become necessary if emissions cuts are insufficient to stave off catastrophic warming. He urged that research into the pros and cons of geoengineering be made a high priority.
Tue, 11 Nov 08
Neuroimaging Of Brain Shows Who Spoke To A Person And What Was Said
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448386516/081110071240.htm
Scientists have developed a method to look into the brain of a person and read out who has spoken to him or her and what was said. With the help of neuroimaging and data mining techniques the researchers mapped the brain activity associated with the recognition of speech sounds and voices. In their Science article "Who" is Saying "What"? Brain-Based Decoding of Human Voice and Speech the four authors demonstrate that speech sounds and voices can be identified by means of a unique 'neural fingerprint' in the listener's brain.
Tue, 11 Nov 08
Multiple Sclerosis Research Charges Ahead With New Mouse Model Of Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448540999/081106064350.htm
A new study highlights the role of a charge-switching enzyme in nervous system deficits characteristic of multiple sclerosis and other related neurological illness. Too much of a charge-switching enzyme causes symptoms of multiple sclerosis and related disorders in mouse models.
Tue, 11 Nov 08
Small Water Fleas Help Ecologists Understand Population Dynamics
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448541011/081030161417.htm
A study of populations of tiny water fleas is helping ecologists to understand population dynamics, which may lead to predictions about the ecological consequences of environmental change.
Tue, 11 Nov 08
New Imaging Technology Accurately Identifies A Broad Spectrum Of Liver Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/440255980/081102134639.htm
New imaging technology can identify liver fibrosis with high accuracy and help eliminate the need for liver biopsies. Liver fibrosis is a common condition that can lead to incurable cirrhosis if not treated in time.
Tue, 11 Nov 08
Research On Breathing Disorders And Congenital Heart Defects
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448541012/081030161419.htm
New optical techniques have been developed for visualizing the invisible processes at work in several human diseases.
Tue, 11 Nov 08
Age Is Not A Key Factor In Cancer Survival, But Clinical Trials Exclude Older Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448541013/081106064624.htm
Age is not an independent factor in cancer survival rates and should not influence decisions about how to treat older patients, according to a new study.
Mon, 10 Nov 08
New Small-scale Generator Produces Alternating Current By Stretching Zinc Oxide Wires
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447932101/081109193342.htm
Researchers have developed a new type of small-scale electric power generator able to produce alternating current through the cyclical stretching and releasing of zinc oxide wires encapsulated in a flexible plastic substrate with two ends bonded.
Mon, 10 Nov 08
Researchers Discover New Risk Factor For Cardiovascular Disease, And A Way To Control It
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447603123/081109122531.htm
Scientists have discovered that having high levels of particular protein puts patients at increased risk of developing cardiovascular disease. The results of the study were so conclusive that the clinical trial had to be stopped before its scheduled completion date.
Mon, 10 Nov 08
Nanoparticles Research Aids Drug Development
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448045337/081106122822.htm
Scientists have developed a new technology which can dramatically improve the effectiveness of antibacterial treatments.
Mon, 10 Nov 08
Half-broken Gene Is Enough To Cause Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448045339/081103130927.htm
Tumor suppressor genes do not necessarily require both alleles to be knocked out before disease phenotypes are expressed. Only one allele of SMAD4 has to be damaged to put a person at risk of pancreatic and colorectal cancer.
Mon, 10 Nov 08
MP3 Headphones Interfere With Implantable Defibrillators, Pacemakers, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447603126/081109122525.htm
MP3 player headphones can cause potentially dangerous interactions with pacemakers and implantable defibrillators. For safe use, the headphones must be at least 1.2 inches (3 cm) from the implanted devices. Unrelated research did not find adverse reactions to pacemakers and defibrillators from iPods, Bluetooth headsets, iPhones, electric blankets, hand-held airport metal detectors or pills swallowed to perform video endoscopy.
Mon, 10 Nov 08
Computer Model Can Predict Human Behavior And Learning
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448045341/081107143755.htm
A new computer model can predict how people will complete a controlled task and how the knowledge needed to complete that task develops over time.
Mon, 10 Nov 08
Simple Brain Mechanisms Explain Arbitrary Human Visual Decisions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447889383/081109193435.htm
Scientists report that a simple decision-making task does not involve the frontal lobes, where many of the higher aspects of human cognition, including self-awareness, are thought to originate. Instead, the regions that decide are the same brain regions that receive stimuli relevant to the decision and control the body's response to it.
Mon, 10 Nov 08
Flu Shots May Cut Risk Of Blood Clots Forming In Veins
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447932103/081109193332.htm
Flu shots may reduce the risk of blood clots forming in veins by 26 percent. Flu shots may be more protective before age 52.
Mon, 10 Nov 08
Intelligent Walker Designed To Assist The Elderly And People Undergoing Medical Rehabilitation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/445457028/081107072015.htm
Researchers have designed an intelligent walker (i-Walker) that goes a step beyond conventional walkers as it can communicate with the user, think for itself and react to the environment. The device can understand a set of voice commands and can be activated by means of simple verbal instructions given by the user (e.g., "take me to the kitchen"). To do this, it includes elements for independent movement and a personalized intelligent software agent.
Mon, 10 Nov 08
New Research Finds Markers For Esophageal Cancer Before It Develops
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448045343/081103130929.htm
Researchers have identified genetic proteins, also known as biomarkers, capable of distinguishing changes at the microscopic level that can signal a precancerous condition in the esophagus. These markers may help identify patients who are likely to progress to esophageal cancer.
Mon, 10 Nov 08
Preventing Traffic Accidents Before They Happen?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447550760/081109074858.htm
A new automotive safety systems will alert drivers to potential hazards by using information from the car, other road users and the roadside infrastructure to predict and prevent traffic accidents.
Mon, 10 Nov 08
Racial Disparities Increasing For Cancers Unrelated To Smoking, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448045349/081106064358.htm
A new American Cancer Society study finds that recent progress in closing the gap in overall cancer mortality between African-Americans and whites may be due primarily to smoking-related cancers, and that cancer mortality differences related to screening and treatment may still be increasing.
Mon, 10 Nov 08
Global Warming Predicted To Hasten Carbon Release From Peat Bogs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448003754/081106122249.htm
Billions of tons of carbon sequestered in the world's peat bogs could be released into the atmosphere in the coming decades as a result of global warming, according to a new analysis of the interplay between peat bogs, water tables, and climate change.
Mon, 10 Nov 08
Harnessing Nature’s Diagnostic Tools For Disease Prevention
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447550758/081109074902.htm
The earlier cancer is diagnosed, the better the chance of effecting a cure. A revolutionary new hybrid technology offers the possibility of detecting this and other diseases right at inception.
Mon, 10 Nov 08
DNA Provides 'Smoking Gun' In The Case Of The Missing Songbirds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448045352/081104191121.htm
DNA evidence shows conclusively that males from a North American warbler species interbred with females from a related species and took over a large part of the other species' range.
Mon, 10 Nov 08
XDR-TB: Deadlier And More Mysterious Than Ever
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448045356/081106064354.htm
New research has found that extensively drug-resistant tuberculosis is increasingly common and more deadly than previously known. Extensively drug-resistant tuberculosis is a growing public health threat that is only just beginning to be understood by medical and public health officials.
Mon, 10 Nov 08
Plant Virus Spreads By Making Life Easy For Crop Pests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448045360/081030202240.htm
In 752, Japanese Empress Koken wrote a short poem about the summertime yellowing of a field in what is thought to be the first account of a viral plant disease. More than 1,250 years later, scientists concluded that the virus Koken described was part of the particularly insidious geminivirus family that continues to decimate tomato, tobacco and cotton crops worldwide.
Mon, 10 Nov 08
Mental Health Linked To Stillbirth And Newborn Deaths
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447932097/081109193355.htm
Women with a history of serious mental illness are much more likely to have babies that are stillborn or die within the first month of life, new research reveals.
Mon, 10 Nov 08
How Evolution Learns From Past Environments To Adapt To New Environments
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448003755/081107071822.htm
The evolution of novel characteristics within organisms can be enhanced when environments change in a systematic manner, according to a new study. Researchers suggest that in environments that vary over time in a non-random way, evolution can learn the rules of the environment and develop organisms that can readily generate novel useful traits with only a few mutations.
Mon, 10 Nov 08
Better Treatments For Inherited Form Of Colon Cancer?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448045363/081103120941.htm
Researchers believe they may be one step closer to understanding how certain forms of colon cancer develop.
Mon, 10 Nov 08
Project Virtually Rebuilds Lost Architecture Of The Shakers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448045367/081106122247.htm
The Shakers, a religious group that built 19 communities in the United States during the 1800s, had a prolific and distinct architectural construction and design style. Much of that architecture has been lost; however, a new research project aims to rebuild it -- virtually.
Mon, 10 Nov 08
Diagnosis Of Pelvic Inflammatory Disease Predicts High Risk And Rate Of Further Infection In Teenagers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448045370/081103170619.htm
A study among Baltimore inner-city teenage girls treated for pelvic inflammatory disease shows they are highly vulnerable to subsequent sexually transmitted infections -- sometimes within a few weeks or months of their treatment.
Mon, 10 Nov 08
New Technology Promises Cheap Satellite Triple-play
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447550762/081109074856.htm
A new technology promises to dramatically lower the costs of satellite bandwidth, potentially bridging the digital divide and enabling satellites to deliver TV, internet and telephony services via satellite. The technical problems are solved, now the research team is working hard on the business case.
Mon, 10 Nov 08
Transplant Experts Discuss Organ Trafficking
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448045373/081108155826.htm
With the number of patients in need of organ transplants on the rise, an increasing number of patients are turning to unconventional sources for organs. Individuals are willing to donate their kidneys for financial incentive, particularly in developing countries where the poverty rate is high, resulting in numerous reports of human trafficking as a source of organs.
Mon, 10 Nov 08
When It Comes To Sea Level Changing Glaciers, New NASA Technique Measures Up
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448003756/081106122254.htm
Scientists have used satellite data to make the most precise measurements to date of changes in the mass of mountain glaciers in the Gulf of Alaska, a region expected to be a significant contributor to global sea level rise over the next 50-100 years.
Mon, 10 Nov 08
Research Sheds Light On Key Trigger Of Embryonic Stem Cell Differentiation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448045376/081105135115.htm
Clusters of mouse embryonic stem cells called embryoid bodies more closely approximate true embryos in organization and structure than previously thought, according to researchers at the Stanford University School of Medicine.
Mon, 10 Nov 08
New Hybrid Plants Could Prompt More Prodigious Pepper Production In Southwest
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448045380/081103170645.htm
To help Southwestern US pepper producers perk up pepper production, scientists and agriculture experts are developing several new adapted pepper plant hybrids.
Mon, 10 Nov 08
Long-term Benefits Of Morphine Treatment In Infants Confirmed In Rodent Study
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448045384/081103160854.htm
Scientists have demonstrate that administration of preemptive morphine prior to a painful procedure in infancy blocks the long-term negative consequences of pain in adult rodents. These studies have serious implications for the way anesthetics and analgesics are administered to neonates prior to surgery.
Mon, 10 Nov 08
Polarized Light Guides Cholera-carrying Midges That Contaminate Water Supplies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448045390/081031102043.htm
Midges harbor the lethal Vibrio cholerae bacteria that spreads cholera, contaminating water supplies with the infection when they lay their eggs. What guides the midges to select particular watercourses when laying their eggs? Scientists have found that the midges are attracted by polarized light reflections from water and suggest that polarized light could be used to control cholera transmission and reduce midge numbers.
Mon, 10 Nov 08
Emerging Carbon Finance Market Will Play Critical Role In Addressing Climate Change, Experts Say
http://feeds.sciencedaily.com/~r/sciencedaily/~3/448045395/081107143622.htm
Climate change is an unprecedented global problem and an emerging carbon finance market will play a critical role in addressing it, asserts a newly published Yale report.
Sun, 9 Nov 08
Physicists Create BlackMax To Search For Extra Dimensions In The Universe
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447173277/081107143616.htm
Theoretical and experimental physicists have designed a new black hole simulator called BlackMax to search for evidence that extra dimensions might exist in the universe.
Sun, 9 Nov 08
Genetic Study Provides New Insights Into Molecular Basis Of Language Development
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447173278/081105180803.htm
Scientists have identified the first gene that is associated with a common childhood language disorder, known as specific language impairment (SLI). The gene -- CNTNAP2 -- has also been recently implicated in autism, and could represent a crucial genetic link between the two disorders.
Sun, 9 Nov 08
Red-eyed Treefrog Embryos Actively Avoid Asphyxiation Inside Their Eggs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/441110302/081103102309.htm
Red-eyed treefrog embryos react to environmental oxygen concentration before they have blood or muscular movement. These initial responses to the environment may be critical to the frogs' long-term survival.
Sun, 9 Nov 08
Smaller Mosquitoes Are More Likely To Be Infected With Viruses Causing Human Diseases
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447173279/081103111542.htm
An entomologist says smaller mosquitoes are more likely to be infected with viruses that cause diseases in humans.
Sun, 9 Nov 08
Paper Mill Waste May Be Just Right For Reclaiming Mineland
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447173280/081031214322.htm
Paper mill waste can safely be applied at a rate three times higher than the typical rate in Ohio, to reclaim soils of surface-coal mined areas.
Sun, 9 Nov 08
Consumers Not Ready For Tailor-made Nutrition?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447173281/081104084213.htm
In the near future it will be possible to customize the food we eat to individual needs, based on the genetic profile of the individual. Researchers suggest that the consumer market is not yet ready for this so-called nutrigenomics. They conclude that many obstacles must be overcome before products based on nutrigenomics become a reality.
Sun, 9 Nov 08
Carbon Dioxide Levels Already In Danger Zone, Revised Theory Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447173282/081108155834.htm
If climate disasters are to be averted, atmospheric carbon dioxide must be reduced below the levels that already exist today, according to a new study in Open Atmospheric Science Journal.
Sun, 9 Nov 08
Mitochondria Could Be Target For Therapeutic Strategy For Alzheimer's Disease Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447173283/081105180805.htm
A study in Nature Medicine describes the function and interaction of a critical molecule involved in cell death in Alzheimer's disease patients. These new findings reveal that blocking this molecule, called Cyclophilin D, and development of surrounding mitochondrial targets may be viable therapeutic strategies for the prevention and treatment of Alzheimer's disease, according to Shi Du Yan, Ph.D., at Columbia University Medical Center, who led the multi-center research.
Sun, 9 Nov 08
Record High Performance With New Solar Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447173284/081103124224.htm
Researchers in China and Switzerland are reporting the highest efficiency ever for a promising new genre of solar cells, which many scientists think offer the best hope for making the sun a mainstay source of energy in the future. The photovoltaic cells, called dye-sensitized solar cells or Grätzel cells, could expand the use of solar energy for homes, businesses, and other practical applications, the scientists say.
Sun, 9 Nov 08
HPV Virus Helps Cervical And Head And Neck Cancers Resist Treatment And Grow And Spread
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447173285/081103120922.htm
The human papillomavirus allows infected cervical and head and neck cancer cells to maintain internal molecular conditions that make the cancers resistant to therapy and more likely to grow and spread, resulting in a poor prognosis for patients.
Sun, 9 Nov 08
How Plant Cells Synthesize Pharmaceutical Compounds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447173286/081105083543.htm
A Finnish researcher's work on two plants -- tobacco and Egyptian henbane -- is yielding new information about the functions of genes involved with the biosynthesis of plant secondary metabolites. The results can be used in developing production of valuable pharmaceuticals in plant cell cultures.
Sun, 9 Nov 08
Forgotten, But Not Gone: Leprosy Still Present In The US
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447173287/081107143748.htm
Long believed to be a disease of biblical times, leprosy, also known as Hansen's disease, continues to be seen in the United States.
Sun, 9 Nov 08
Playing A Game Shows How Personalities Evolved
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447173288/081103201207.htm
Why do some of us always do the right thing while others only seem to be out for themselves? New research offers a new explanation as to why such a wide range of personality traits has evolved in humans and other social species.
Sun, 9 Nov 08
Friendly Bacteria Reduce Hospital Infections
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447173289/081105191726.htm
A probiotic bacterium, Lactobacillus plantarum 299, has been used to out-compete the dangerous bacteria that cause respiratory illness in ventilated patients. Research published in BioMed Central's open access journal Critical Care describes how applying a bacterial solution in place of normal antiseptics is effective in preventing the most common cause of ventilator-associated pneumonia.
Sun, 9 Nov 08
New Role For Critical DNA Repair Molecule In Immune System
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447173290/081030201615.htm
The human immune system is a brilliantly adaptable weapon against foreign invaders. But it all depends on the work of specialized cells called lymphocytes that have made a risky evolutionary gambit to mutate their own DNA. New research published in Nature shows for the first time that a molecule devoted to DNA repair plays a broader role in this genetic reshuffling -- called recombination -- than scientists had thought.
Sun, 9 Nov 08
Smokers See Decline In Ability To Smell, Rise In Laryngitis, And Upper Airway Issues
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447173291/081103111625.htm
New research gives more reasons to kick smoking and smokeless tobacco products. New research shows that cigarette smoking is linked to upper airway symptoms ("smoker's nose") and the loss of smokers' ability to smell common odors. Most alarmingly second-hand smoke plays a role in the rise of cases of "environmental laryngitis."
Sun, 9 Nov 08
Stretching Silicon: A New Method To Measure How Strain Affects Semiconductors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447173292/081103170625.htm
Engineers and physicists have developed a method of measuring how strain affects thin films of silicon that could lay the foundation for faster flexible electronics.
Sun, 9 Nov 08
Students Eat More Whole Grains When It's Gradually Added To School Lunch
http://feeds.sciencedaily.com/~r/sciencedaily/~3/447173293/081107143845.htm
Elementary school students will eat more whole grains when healthier bread products are gradually introduced into their school lunches, a new study shows.
Sun, 9 Nov 08
Is A Stradivarius Violin Better Than Other Violins?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/446885704/081108164152.htm
Some sell for more than $3.5 million. Only 700 of them exist, and they're stored in vaults, frequently stolen and often counterfeited. The object in question? Stradivarius violins, constructed by famed Italian instrument-maker Antonio Stradivari between 1680 and 1720. Treasured for possessing sublime acoustic properties, these rare instruments have spawned dozens of theories attempting to explain their legendary tone, and luthiers, makers of stringed instruments, are still trying to reproduce it. The question remains: Are Stradivarius violins worth all the fuss?
Sat, 8 Nov 08
Sea Snakes Seek Out Freshwater To Slake Thirst
http://feeds.sciencedaily.com/~r/sciencedaily/~3/446261883/081106153629.htm
Sea snakes may slither in saltwater, but they sip the sweet stuff. It has been the "long-standing dogma" that the roughly 60 species of venomous sea snakes worldwide satisfy their drinking needs by drinking seawater, with internal salt glands filtering and excreting the salt. Experiments with three species of captive sea kraits captured near Taiwan, however, found that the snakes refused to drink saltwater even if thirsty -- and then would drink only freshwater or heavily diluted saltwater.
Sat, 8 Nov 08
What’s Your Child’s Genetic Destiny For Disease?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/446261884/081103165023.htm
What's your child's "genetic destiny?" Does diabetes run in your family? Or has a genetic test indicated that your child may some day be at risk for developing heart disease?
Sat, 8 Nov 08
Tale Of Two Snails Reveals Secrets About The Biochemistry Of Evolution
http://feeds.sciencedaily.com/~r/sciencedaily/~3/446261885/081103124324.htm
Researchers in Spain are reporting deep new insights into how evolution changes the biochemistry of living things, helping them to adapt to new environments. Their study, based on an analysis of proteins produced by two populations of marine snails, reveals chemical differences that give one population a survival-of-the fittest edge for life in its cold, wave-exposed environment.
Sat, 8 Nov 08
Gout And Parkinson's: Studies Examine Treatment For Gout And The Condition's Protective Effects
http://feeds.sciencedaily.com/~r/sciencedaily/~3/446261886/081104132923.htm
The goal in treating patients with gout is to reduce acute attacks by lowering serum urate levels, which are usually high in this disease. At the same time, high serum urate levels have been shown to lower the risk of developing Parkinson's disease.
Sat, 8 Nov 08
Hair Today, Gone Tomorrow: Tracking Hair Loss And Growth Mathematically
http://feeds.sciencedaily.com/~r/sciencedaily/~3/446261887/081103102316.htm
Scientists have developed maths-based imaging technology to measure hair on different parts of the human body.
Sat, 8 Nov 08
Many Motorists Don't See Need To Heed Speed Limits
http://feeds.sciencedaily.com/~r/sciencedaily/~3/446261888/081107143759.htm
Research suggests US motorists are growing increasingly cynical about the relevance of speed limits, and a new study indicates many motorists are more likely to think they can drive safely while speeding as long as they won't get caught.
Sat, 8 Nov 08
Pool Of Distant Galaxies: Deepest Ultraviolet Image Of The Universe Yet
http://feeds.sciencedaily.com/~r/sciencedaily/~3/446261889/081107140501.htm
This uniquely beautiful patchwork image, with its myriad of brightly colored galaxies, shows the Chandra Deep Field South (CDF-S), arguably the most observed and best studied region in the entire sky. The CDF-S is one of the two regions selected as part of the Great Observatories Origins Deep Survey (GOODS), an effort of the worldwide astronomical community that unites the deepest observations from ground- and space-based facilities at all wavelengths from X-ray to radio.
Sat, 8 Nov 08
How Body Determines Optimal Amount Of Germ-fighting B Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/446261890/081104132904.htm
Researchers can now explain how the body determines whether there are enough mature B-cells in the blood stream at any one time.
Sat, 8 Nov 08
Accident Ahead? New Software Will Enable Cars To Make Coordinated Avoidance Maneuvers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/441046737/081103091030.htm
A road construction barrier falls over: The car driver can't avoid it, since there are cars on the lane next to him. In future, a new software program will enable cars to coordinate maneuvers together in dangerous situations.
Sat, 8 Nov 08
Type 2 Diabetes Management: Apelin Hormone Injections Powerfully Lower Blood Sugar
http://feeds.sciencedaily.com/~r/sciencedaily/~3/446261892/081104122133.htm
By injecting a hormone produced by fat and other tissues into mice, researchers report in Cell Metabolism that they significantly lowered blood sugar levels in normal and obese mice. The findings suggest that the hormone known as apelin might be a promising target for managing insulin resistance and type 2 diabetes. Insulin resistance, in which normal amounts of insulin are insufficient to lower blood sugar (glucose) levels, is a precursor to diabetes.
Sat, 8 Nov 08
Overfishing Threatens European Bluefin Tuna
http://feeds.sciencedaily.com/~r/sciencedaily/~3/446261893/081107143614.htm
Bluefin tuna disappeared from Danish waters in the 1960s. Now the species could become depleted throughout the northeast Atlantic and Mediterranean, according to new research. Bluefin tuna is a treasured delicacy, particularly as sushi. The species in the Mediterranean Sea and northeast Atlantic is caught by fishermen from many countries, particularly France, Spain and Italy.
Sat, 8 Nov 08
Pregnancy Diabetes Doubles Risk Of Language Delay In Children
http://feeds.sciencedaily.com/~r/sciencedaily/~3/446261894/081106122252.htm
Children born to mothers with pregnancy-related diabetes run twice the risk of language development problems, according to a new study. This study is the first to isolate the effect of gestational diabetes from other factors including family socioeconomic status, alcohol and tobacco consumption as well as maternal hypertension during pregnancy.
Sat, 8 Nov 08
Paleontologists Doubt 'Dinosaur Dance Floor'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/446261895/081107163306.htm
Potholes or tracks? A group of paleontologists visited the northern Arizona wilderness site nicknamed a "dinosaur dance floor" and concluded there were no dinosaur tracks there, only a dense collection of unusual potholes eroded in the sandstone. So the scientist who leads the University of Utah's geology department says she will team up with the skeptics for a follow-up study.
Sat, 8 Nov 08
Could Vitamin D Save Us From Radiation?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/446261896/081107143847.htm
A form of vitamin D could protect us against damage from low levels of radiation according to new research in the International Journal of Low Radiation.
Sat, 8 Nov 08
Protein-printing Technique Gives Snapshots Of Immune System Defense
http://feeds.sciencedaily.com/~r/sciencedaily/~3/446261897/081103192312.htm
A new technique lets researchers, for the first time, look at single white blood cells and measure specific characteristics of the set of antibodies they produce when the body is under attack. The ability to measure antibodies from many individual immune cells may aid vaccine research and allow innovative medical tests.
Sat, 8 Nov 08
Pregnancy Disorder Signals Need To Screen For Heart Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/446261898/081104114309.htm
High blood pressure experienced during pregnancy could be a woman's earliest warning that she is at risk of developing heart disease. Called pre-eclampsia, this type of high blood pressure occurs in 5-10 per cent of all pregnancies.
Sat, 8 Nov 08
Tuning In To The Virtues Of Virtual Labs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/441046745/081103090858.htm
The grid’s huge communication and computation capacities could let scientists gather data and run remote experiments anywhere in the world. Researchers have now mapped out how that can be done.
Sat, 8 Nov 08
PTSD Symptoms Associated With Increased Risk Of Death After Heart Events
http://feeds.sciencedaily.com/~r/sciencedaily/~3/446261899/081103170614.htm
Individuals who receive implantable cardiac defibrillators after a sudden heart event appear more likely to die within five years if they experience symptoms of post-traumatic stress disorder, regardless of the severity of their disease, according to a new report.
Sat, 8 Nov 08
Robots Show That Brain Activity Is Linked To Time As Well As Space
http://feeds.sciencedaily.com/~r/sciencedaily/~3/445457002/081107071820.htm
Humanoid robots have been used to show that that functional hierarchy in the brain is linked to time as well as space. Researchers in Japan have created a new type of neural network model which adds to the previous literature that suggests neural activity is linked solely to spatial hierarchy within the animal brain.
Sat, 8 Nov 08
Melanin Production Discovered In Fat Tissue May Protect Some Individuals Against Chronic Diseases Associated With Obesity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/445842336/081106164818.htm
A new study may open the door to new therapies for combating chronic diseases associated with obesity. While analyzing samples taken from morbidly obese patients undergoing weight loss surgery, researchers discovered that substantial quantities of melanin were being produced in the study participants' fat tissue.
Sat, 8 Nov 08
Unraveling Lion's Natural History Using Host And Virus Population Genomics
http://feeds.sciencedaily.com/~r/sciencedaily/~3/445842338/081107071827.htm
The lion is one of the world's most charismatic carnivores. In a new study, researchers provide insights into the genetic structure and history of lion populations. Their work refutes the hypothesis that African lions consist of a single, randomly breeding population. It also indicates the importance of preserving populations in decline as opposed to prioritizing larger-scale conservation efforts.
Sat, 8 Nov 08
Dietary Sport Supplement Shows Strong Effects In The Elderly
http://feeds.sciencedaily.com/~r/sciencedaily/~3/445842339/081106193915.htm
Beta-alanine, a dietary supplement widely used by athletes and body builders, has been proven to increase the fitness levels of a group of elderly men and women. The research suggests that BA supplementation improves muscle endurance in the elderly.
Sat, 8 Nov 08
Sunlight Has More Powerful Influence On Ocean Circulation And Climate Than North American Ice Sheets
http://feeds.sciencedaily.com/~r/sciencedaily/~3/445842340/081106153633.htm
A study reported in Nature disputes a longstanding picture of how ice sheets influence ocean circulation during glacial periods.
Sat, 8 Nov 08
Androgynous Leaders Mean Increased Innovation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/445457033/081107071957.htm
Androgynous leaders, that is, leaders with both masculine and feminine traits, are the ones who best succeed at creating a good climate for innovation.
Sat, 8 Nov 08
'Beauty Machine' Makes Average Face A Knockout With A Single Click
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444719265/081106122409.htm
Our mothers told us that true beauty is more than skin deep — but researchers are now challenging Mom. They’ve built a beauty machine that, with the press of a button, turns a picture of your own ordinary face into that of a cover model.
Sat, 8 Nov 08
Is Stuttering In Our DNA?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/445457000/081106122256.htm
Bruce Willis, Marilyn Monroe, and Carly Simon all suffered from stuttering. Today, three million more Americans do, too. Most are able to overcome the handicap, which afflicts 5% of all children -- but childhood suffering from stuttering can be traumatic, producing educational, social, and occupational disadvantages. Scientists are now investigating the genetic factors that underlie stuttering.
Sat, 8 Nov 08
Drivers Beware: Wildlife Specialist Offers Hints For Avoiding Deer-vehicle Crashes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/445513782/081103202333.htm
In November, when it comes to avoiding deer collisions, it's not the one you see crossing the road that's likely to get you, according to a wildlife expert. "It's the one that's chasing her," said Dr. Billy Higginbotham, Texas AgriLife Extension Service fisheries and wildlife specialist.
Sat, 8 Nov 08
Key To Sonic Hedgehog Control Of Brain Development Found
http://feeds.sciencedaily.com/~r/sciencedaily/~3/445513784/081028143517.htm
Researchers have discovered how the expression of the Sonic hedgehog gene is regulated during brain development and how mutations that alter this process cause brain malformations.
Sat, 8 Nov 08
Harnessing Network Anarchy For The Common Good
http://feeds.sciencedaily.com/~r/sciencedaily/~3/441110327/081103090853.htm
Anarchy may be the bane of political conservatives, but on the Internet it is the essence of the information superhighway.
Sat, 8 Nov 08
Serial Cohabiters Less Likely Than Others To Marry
http://feeds.sciencedaily.com/~r/sciencedaily/~3/445842341/081106153544.htm
A new study found that serial cohabiters are less likely than single-instance cohabiting unions to result in marriage.
Sat, 8 Nov 08
Bullies May Enjoy Seeing Others In Pain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/445457034/081107071816.htm
Unusually aggressive youth may actually enjoy inflicting pain on others, research using brain scans shows. Scans of the aggressive youth's brains showed that an area that is associated with rewards was highlighted when the youth watched a video clip of someone inflicting pain on another person. Youth without the unusually aggressive behavior did not have that response, the study showed.
Sat, 8 Nov 08
Diabetes, High Blood Pressure May Cause People With Alzheimer's Disease To Die Sooner
http://feeds.sciencedaily.com/~r/sciencedaily/~3/445457020/081103170434.htm
People with Alzheimer's disease who also have diabetes or high blood pressure may die sooner than people without such disorders, according to a new study.
Sat, 8 Nov 08
Hybrid Materials For Future Solar Cells Under Development
http://feeds.sciencedaily.com/~r/sciencedaily/~3/445513785/081104114427.htm
Scientists are developing composite materials based on semiconductor nanoparticles and carbon nanotubes for use in efficient light emitting diodes and photovoltaic devices.
Sat, 8 Nov 08
Without Glial Cells, Animals Lose Their Senses
http://feeds.sciencedaily.com/~r/sciencedaily/~3/445513786/081030144624.htm
Scientists show that while neurons play the lead role in detecting sensory information, a second type of cell, the glial cell, pulls the strings behind the scenes. The findings, point to a mechanism that may explain not only how glia are required for bringing sensory information into the brain but also how glia may influence connections between neurons deep within in it.
Sat, 8 Nov 08
Surprisingly, Female Models Have Negative Effect On Men
http://feeds.sciencedaily.com/~r/sciencedaily/~3/445457024/081106122301.htm
A leading researcher of media effects on body image looked at the effect of male magazines on college-age men. Completing three different studies, she found that unlike their female classmates, it was not the same-sex models that affected the males negatively, but quite the opposite.
Fri, 7 Nov 08
Social Interactions Can Alter Gene Expression In Brain, And Vice Versa
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934644/081106153538.htm
Our DNA determines a lot about who we are and how we play with others, but recent studies of social animals (birds and bees, among others) show that the interaction between genes and behavior is more of a two-way street than most of us realize.
Fri, 7 Nov 08
Achilles' Heel Of Pancreatic Cancer Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934645/081106181417.htm
Researchers have discovered a metabolic deficiency in pancreatic cancer cells that can be used to slow the progress of the deadliest of all cancers.
Fri, 7 Nov 08
Gold Nanostars Hold Promise In Medical Diagnoses And Tests For Environmental Contaminants
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934646/081106122258.htm
Tiny gold stars, smaller than a billionth of a meter, may hold the promise for new approaches to medical diagnoses or testing for environmental contaminants.
Fri, 7 Nov 08
Kidney Transplantation Can Improve Mental Performance, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934647/081106121936.htm
Individuals with kidney disease often suffer from cognitive impairment, but kidney transplantation can improve their mental performance, according to new research.
Fri, 7 Nov 08
Computers Effective In Verifying Mathematical Proofs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934648/081106153638.htm
New computer tools have the potential to revolutionize the practice of mathematics by providing more-reliable proofs of mathematical results than have ever been possible in the history of humankind. These tools, based on the notion of "formal proof," have in recent years been used to provide nearly infallible proofs of many important results.
Fri, 7 Nov 08
James Bond Girl Draws Attention To Babies Born With Extra Fingers Or Toes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934649/081106194800.htm
One of the Bond Girls in the new James Bond movie is drawing attention to a relatively common congenital condition called polydactyly -- extra fingers or toes. Gemma Arterton, who plays Agent Fields in "Quantum of Solace," opening Nov. 14, was born with six digits on each hand. The extra fingers were removed during childhood.
Fri, 7 Nov 08
Brain Injury Repair? Damaged Nerves Regenerated By Silencing Natural Growth Inhibitors In Neurons
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934650/081106153523.htm
Scientists have successfully regenerated damaged nerves by silencing natural growth inhibitors in neurons. The researchers used genetic techniques to delete these inhibitors, resulting in significant re-growth of axons in a mouse model. And, it may be possible to accomplish the same re-growth with drugs, potentially making it possible to regenerate nerves damaged by brain or spinal cord injury.
Fri, 7 Nov 08
Hormone Therapy Helps Short Children Grow Up, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934651/081106121943.htm
Growth-hormone treatment may significantly increase final height in children diagnosed with short stature, even in cases where the child is not growth-hormone deficient, according to a new study.
Fri, 7 Nov 08
Epic Voyage To Discover Origins And Migration Routes Of Ancestors Of Ancient Polynesians And Their Animals
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934653/081106122244.htm
Scientists are embarking on a 6000-kilometer trip following the migration route of ancient Pacific cultures. This is the first ever expedition to sail in two traditional Polynesian boats -- ethnic double canoes -- which attempts to re-trace the genuine migration route of the ancient Austronesians. The researchers will also be examining the local wildlife.
Fri, 7 Nov 08
Novel Leukemia Vaccine For High-risk Patients In Clinical Trials
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934654/081103170623.htm
Researchers are conducting clinical trials of a novel therapy aimed at revving up the immune system to combat a particularly difficult to treat form of leukemia.
Fri, 7 Nov 08
Tiny Solar Cells Built To Power Microscopic Machines
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934656/081106121938.htm
Some of the tiniest solar cells ever built have been successfully tested as a power source for even tinier microscopic machines -- for example, an inch-long array of 20 of these cells, each one about a quarter the size of a lowercase "o" in a standard 12-point font.
Fri, 7 Nov 08
Unusual Use Of Toys In Infancy A Clue To Later Autism
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934658/081106153540.htm
Researchers have found that infants later diagnosed with autism exhibited unusual exploration of objects long before being diagnosed.
Fri, 7 Nov 08
Tiny Backpacks For Cells: Polymer Patches Could Ferry Drugs, Assist In Cancer Diagnosis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934659/081106122417.htm
MIT engineers have outfitted cells with tiny "backpacks" that could allow them to deliver chemotherapy agents, diagnose tumors or become building blocks for tissue engineering.
Fri, 7 Nov 08
Migraines Associated With Lower Risk Of Breast Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934660/081106064348.htm
Women who suffer from migraines may take at least some comfort in a recent, first-of-its-kind study that suggests a history of such headaches is associated with a significantly lower risk of breast cancer.
Fri, 7 Nov 08
Just Scratching The Surface: New Technique Maps Nanomaterials As They Grow
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934661/081104140915.htm
Researchers have developed a measurement technique that will help scientists and companies map nanomaterials as they grow. The discovery could help create superior nanotechnologies and lead to the development of more efficient solar panels and increased magnetic data storage.
Fri, 7 Nov 08
Mechanism That Allows 2 Pacemakers To Control Breathing Pieced Together
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934662/081103192308.htm
Two pacemakers in the brain work together in harmony to ensure that breathing occurs in a regular rhythm, according to new research. That cooperation provides critical backup during respiratory stress, from the early trauma of birth to intense exercise and oxygen shortages, said the principal research scientist at the Harvard-MIT Division of Health Sciences and Technology.
Fri, 7 Nov 08
Reducing Pollution: Green Future For Scrap Iron
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934663/081103120927.htm
Engineers have shown that the biological treatment of industrial wastewater can be dramatically enhanced by pretreating the waste with non-oxidized iron. Researchers use zero valent iron to detoxify pollutants in industrial wastewater.
Fri, 7 Nov 08
Impulse Control Area In Brain Affected In Teens With Genetic Vulnerability For Alcoholism
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934665/081106153542.htm
A new study suggests that genetic factors influence size variations in a certain region of the brain, which could in turn be partly responsible for increased susceptibility to alcohol dependence. It appears that the size of the right orbitofrontal cortex, an area of the brain that is involved in regulating emotional processing and impulsive behavior, is smaller in teenagers and young adults who have several relatives that are alcohol dependent.
Fri, 7 Nov 08
Ancient China: Lack Of Rainfall Could Have Contributed To Social Upheaval And Fall Of Dynasties
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444805022/081106165233.htm
Chinese history is replete with the rise and fall of dynasties, but researchers now have identified a natural phenomenon that may have been the last straw for some of them: a weakening of the summer Asian Monsoons. A lack of rainfall could have contributed to social upheaval and the fall of dynasties. Such weakening accompanied the fall of three dynasties and now could be lessening precipitation in northern China.
Fri, 7 Nov 08
Maternal Obesity Can Program Fetal Brain To Induce Adult-onset Obesity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934666/081104152303.htm
Researchers have found that fetuses of obese mother rats were programmed in utero to develop obesity in adulthood.
Fri, 7 Nov 08
Bacteria Manage Perfume Oil Production From Grass
http://feeds.sciencedaily.com/~r/sciencedaily/~3/438122823/081031102053.htm
Scientists in Italy have found bacteria in the root of a tropical grass whose oils have been used in the cosmetic and perfumery industries.
Fri, 7 Nov 08
Hepatitis C Transmission Not Reduced By C-sections, Says New Study
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444344307/081106065550.htm
Planned cesarean sections do not help to reduce the chances of a pregnant mother with Hepatitis C (HCV) transmitting the infection to her unborn baby, according to new scientific findings.
Fri, 7 Nov 08
High-temperature Superconductors: New Method Exploring 'Energy Gap' Shows Electron Pairs Exist Before Superconductivity Sets In
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934667/081105135111.htm
Like astronomers tweaking images to gain a more detailed glimpse of distant stars, physicists have found ways to sharpen images of the energy spectra in high-temperature superconductors -- materials that carry electrical current effortlessly when cooled below a certain temperature. These new imaging methods confirm that the electron pairs needed to carry current emerge above the transition temperature, before superconductivity sets in.
Fri, 7 Nov 08
Problems And Solutions To Inequities In Kidney Transplant Allocation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934668/081106193911.htm
Depending on where they live in the United States, patients needing a kidney transplant can wait just one year for a deceased donor's kidney or up to 10 years. What are the causes and implications of these inequities?
Fri, 7 Nov 08
'Unprecedented' Warming Drives Dramatic Ecosystem Shifts In North Atlantic, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934669/081106153534.htm
While Earth has experienced numerous changes in climate over the past 65 million years, recent decades have experienced the most significant climate change since the beginning of human civilized societies about 5,000 years ago, says a new Cornell University study.
Fri, 7 Nov 08
Key Gene May Be Crucial To Production Of Thymus And Disease-fighting T-cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934670/081106122413.htm
New research provides the first evidence that a key gene may be crucial to maintaining the production of the thymus and its disease-fighting T-cells after an animal's birth.
Fri, 7 Nov 08
Universal Declaration Of Human Rights Flies Into Space
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444621643/081106122851.htm
“All human beings are born free and equal in dignity and rights. They are endowed with reason and conscience and should act towards one another in a sprit of brotherhood”, states Article 1 of the Universal Declaration of Human Rights (UDHR).
Fri, 7 Nov 08
Healthy Bones Program Reduces Hip Fractures By 37 Percent, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934671/081104152306.htm
A study of 625,000 men and women over the age of 50 that found proactive measures can reduce hip fracture rates by an average of 37.2 percent and as much as 50 percent among those at risk for osteoporosis and/or hip fractures.
Fri, 7 Nov 08
Protecting Soils And Producing Biofuel With Corn Stover
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934672/081031214110.htm
Those lonely cornstalks--called corn stover--left behind in the fields after the grain harvest is complete could someday become valuable raw material for the production of cellulosic ethanol. In the meantime, ) soil scientists are determining which portion of the plant would work best for cellulosic ethanol production.
Fri, 7 Nov 08
Growing Problem For Veterans: Domestic Violence
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444934673/081106181415.htm
The increasing number of veterans with posttraumatic stress disorder raises the risk of domestic violence and its consequences on families and children in communities across the United States," says an expert on veteran mental health. Domestic violence experts are working to design community prevention strategies to address this emerging public health problem.
Fri, 7 Nov 08
Earthworm Activity Can Alter Forests' Carbon-carrying Capabilities
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444402935/081027152119.htm
Earthworms can change the chemical nature of the carbon in North American forest litter and soils, potentially affecting the amount of carbon stored in forests. Scientists want to determine the earthworms' effect on forest chemistry by comparing carbon composition in forests that vary in earthworm activity.
Fri, 7 Nov 08
New Target In Brain For Treating Schizophrenia Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444402936/081105180809.htm
Research could expand the options for controlling schizophrenia by identifying a brain region that responds to more than one type of antipsychotic drug. The findings illustrate for the first time that the orbitofrontal cortex could be a promising target for developing future antipsychotic drugs -- even those that have very different mechanisms of action.
Fri, 7 Nov 08
Tennis: Referees More Likely To Make Mistakes When Calling Balls 'Out'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444402937/081027121506.htm
A universal bias in the way people perceive moving objects means that tennis referees are more likely to make mistakes when they call balls "out" than when they call them "in," according to a new report. Because recent rule changes allow professional tennis players to challenge the refs' calls, athletes could exploit the new findings to their advantage.
Fri, 7 Nov 08
New Regulatory Mechanism Discovered For Cell Identity And Behavior In Forming Organs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/438495625/081031172935.htm
Two proteins interact in a previously unknown molecular mechanism that may have broad implications in future studies looking for the causes of defective organs in fetuses, metastatic cancers and other diseases, according to new researcher, Reporting their work in Genes & Development, the researchers said the mechanism coordinates cell identity and behavior in the forming organs of embryos.
Fri, 7 Nov 08
Computer Model Improves Ultrasound Image
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444402938/081104084217.htm
Doctors use diagnostic sonography or ultrasound to visualize organs and other internal structures of the human body. Scientist have now developed a computer model that can predict the sound transmission of improved designs for ultrasound instruments. The computer model is capable of processing large quantities of data and can be run on both a PC and a parallel supercomputer.
Fri, 7 Nov 08
Famous French Artist's Genetic Disorder Sheds Light On Enzyme's Role In Bone Metabolism
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444402939/081104132911.htm
Pycnodysostosis, a condition from which the painter Henri de Toulouse-Lautrec suffered, is a genetic disease characterized by short stature. This rare disease, surprisingly, provides a window into how joints are destroyed by arthritis.
Fri, 7 Nov 08
Seeing A Brain As It Learns To See
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444402940/081022135431.htm
A brain isn't born fully organized. It builds its abilities through experience, making physical connections between neurons and organizing circuits to store and retrieve information in milliseconds for years afterwards. Now that process has been caught in the act for the first time by a research team that watched a naïve brain organize itself to interpret images of motion.
Fri, 7 Nov 08
Selective Reprogramming Of General Cells? Compounds For Stem-cell Production From Adult Cells Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444402941/081105135119.htm
Scientists have identified a combination of small molecules that significantly improve the reprogramming of general adult cells into pluripotent stem cells, which can then develop into all cell types.
Fri, 7 Nov 08
Study Reveals Continued Damage From Banned Obesity Drug
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444402942/081105191728.htm
Fenfluramine, the appetite suppressant drug banned in the US in 1997 due to fears over its links to heart conditions, has been shown to have serious long-term effects. In a report published today in the open access journal BMC Medicine, researchers have shown that people who stopped using fenfluramine 11 years ago had damaged heart valves up to seven years later.
Fri, 7 Nov 08
Conclusive Proof That Polar Warming Is Being Caused By Humans
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444402943/081030144618.htm
New research by the University of East Anglia has demonstrated for the first time that human activity is responsible for significant warming in both polar regions.
Fri, 7 Nov 08
Coping And Copulation Behavior May Help Calculate Diabetes Risk, Mouse Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444402944/081106064352.htm
Researchers use two species of deer mice to study diabetes, and find that males of a calmer and more monogamous species regulate blood sugar better than males of a less calm and less monogamous species when subject to stress.
Fri, 7 Nov 08
Looming Ecological Credit Crunch?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444402945/081105192704.htm
The world is heading for an ecological credit crunch as human demands on the world's natural capital reach nearly a third more than earth can sustain. That is the stark warning contained in the latest edition of WWF's Living Planet Report, the leading statement of the planet's health. In addition global natural wealth and diversity continues to decline, and more and more countries are slipping into a state of permanent or seasonal water stress.
Fri, 7 Nov 08
Completely Novel Action Of Insulin Unveiled
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444402946/081105092537.htm
New research has uncovered an important piece in the puzzle of how insulin works, a problem that has plagued researchers for more than 50 years. The finding brings scientists one step closer to explaining exactly how insulin prompts fat and muscle cells to absorb glucose.
Fri, 7 Nov 08
Chandrayaan-1 Now In Lunar Transfer Trajectory
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444402947/081105135124.htm
Following a fifth orbit-raising maneuver, the Chandrayaan-1 spacecraft successfully settled into a trajectory that will take it to the Moon.
Fri, 7 Nov 08
Reducing Epidemic Proportions: High-tech System Cuts Hospital-related Infections By Half
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444402948/081105164304.htm
Hospitals are supposed to be havens for healing, but the numbers tell a different story. Too many people are infected by illnesses they acquire after they’ve been admitted, and hospital-related infections continue to be the number-two killer of hospitalized Americans after heart disease. Now, a radical new high-tech software program developed to fight these infections is now catching on faster than the flu.
Fri, 7 Nov 08
Married Prisoners At Increased Risk Of Suicide
http://feeds.sciencedaily.com/~r/sciencedaily/~3/444402949/081105190509.htm
Being white, male, married and in a job makes you more likely to die by suicide on being sent to prison, an Oxford University study has found.
Thu, 6 Nov 08
Rocks Could Be Harnessed To Sponge Vast Amounts Of Carbon Dioxide From Air
http://feeds.sciencedaily.com/~r/sciencedaily/~3/443877027/081105180813.htm
Scientists say that a type of rock found in the Mideast nation of Oman and other areas around the world could be harnessed to soak up huge quantities of globe-warming carbon dioxide. Their studies show that the rock, known as peridotite, reacts naturally at surprisingly high rates with CO2 and that the process could be speeded a million times with simple drilling and injection methods.
Thu, 6 Nov 08
How Tuberculosis Might Be Thwarting Immune System: Proteomics Study Yields Clues
http://feeds.sciencedaily.com/~r/sciencedaily/~3/443877028/081105180811.htm
A link between the immune system and the self-cleaning system by which biological cells rid themselves of obsolete or toxic parts may one day yield new weapons in the fight against tuberculosis and other deadly infectious diseases. Berkeley Lab researchers have discovered proteins residing in both systems that point to "cross-talk" between them.
Thu, 6 Nov 08
2008 Sees Fifth Largest Ozone Hole
http://feeds.sciencedaily.com/~r/sciencedaily/~3/443877029/081105175154.htm
The ozone hole over Antarctica, which fluctuates in response to temperature and sunlight, grew to the size of North America in a one-day maximum in September that was the fifth largest on record, since NOAA satellite records began in 1979.
Thu, 6 Nov 08
Parasites That Live Inside Cells Use Loophole To Thwart Immune System
http://feeds.sciencedaily.com/~r/sciencedaily/~3/443877030/081103111534.htm
Scientists have discovered a mechanism by which intracellular pathogens can shut down one of the body's key chemical weapons against them: nitric oxide.
Thu, 6 Nov 08
Molecule Stops DNA Replication In Its Tracks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/443877031/081030200212.htm
When a dividing cell duplicates its genetic material, a molecular machine called a sliding clamp travels along the DNA double helix, tethering the proteins that perform the replication. Researchers have discovered a small molecule that stops the sliding clamp in its tracks.
Thu, 6 Nov 08
Being Unique Has Advantages: 'Rareness' Key To Some Insects Being Favored By Evolution
http://feeds.sciencedaily.com/~r/sciencedaily/~3/443877032/081103192316.htm
As the saying goes -- blondes have more fun, but in the world of insects it may actually be the rare "redheads" that have the last laugh ... at least in terms of evolution. A new study has discovered that genetic variation in an asexual insect -- insects that reproduce by cloning themselves -- is maintained by rare clones being chosen for the next generation, a phenomenon known as frequency-dependent selection.
Thu, 6 Nov 08
Giant Simulation Could Solve Mystery Of 'Dark Matter'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/443877033/081105135117.htm
The search for a mysterious substance which makes up most of the universe could soon be at an end, according to new research.
Thu, 6 Nov 08
Multiple Sclerosis Progression Can Be Predicted With MRI
http://feeds.sciencedaily.com/~r/sciencedaily/~3/443877034/081105164308.htm
A new study shows that MRI scans used on multiple sclerosis patients to determine if the disease has affected gray matter in the brain can identify those at-risk for progression of disability.
Thu, 6 Nov 08
Nighttime Tornadoes Are Worst Nightmare: Twisters That Occur From Midnight To Dawn Are 2.5 Times More Likely To Kill
http://feeds.sciencedaily.com/~r/sciencedaily/~3/443877035/081105092535.htm
A new study underscores the danger of nighttime tornadoes and suggests that warning systems that have led to overall declines in tornado death rates might not be adequate for overnight events, which occur most frequently in the nation's mid-South region.
Thu, 6 Nov 08
How HIV Vac
