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Dancing honeybees use democratic process when selecting a new home
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Qvc5Y8bVNVI/100928153151.htm
When honeybees seek a new home, they choose the best site through a democratic process that humans would do well to emulate, according to a biologist.
Thu, 30 Sep 10
New key to tissue regeneration: Drug treatment triggers sodium ions to regrow nerves and muscle
http://feeds.sciencedaily.com/~r/sciencedaily/~3/njnuwI_ZGy8/100928171428.htm
Tufts biologists have regenerated spinal cord and muscle by triggering an influx of sodium ions into injured cells. The approach breaks new ground in biomedicine because it requires no gene therapy; can be administered after an injury has occurred; and is bioelectric, rather than chemically based. The treatment is most directly applicable to spinal cord repair and limb loss. Proof-of-principle may apply to many complex tissues.
Thu, 30 Sep 10
Research on killer HIV antibodies provides promising new ideas for vaccine design
http://feeds.sciencedaily.com/~r/sciencedaily/~3/shzYXksYiXc/100929132527.htm
New discoveries about the immune defenses of rare HIV patients who produce antibodies that prevent infection suggest a novel direction for designing new vaccines.
Thu, 30 Sep 10
Purifying proteins: Researchers use NMR to improve drug development
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fV1fXoB-wdg/100929113334.htm
The purification of drug components is a large hurdle facing modern drug development. This is particularly true of drugs that utilize proteins, which are notoriously difficult to separate from other potentially deadly impurities. Scientists are using nuclear magnetic resonance (NMR) to understand and improve an important protein purification process.
Thu, 30 Sep 10
Mammography reduces mortality from breast cancer in ages 40–49 years, Swedish study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Qw2lGsfgfuo/100929142007.htm
Mammography examinations of women aged 40–49 reduce breast cancer mortality by 29%, a statistically significant reduction, according to a national study in Sweden.
Thu, 30 Sep 10
Model aims to reduce disaster toll on city's social, economic fabric
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zrkwu_h0sjQ/100928141554.htm
Researchers have created a computer model that predicts how a disaster's impact on critical infrastructure would affect a city's social and economic fabric, a potential tool to help reduce the severity of impacts, manage the aftermath of catastrophe and fortify infrastructure against future disasters.
Thu, 30 Sep 10
Dirty hands, dirty mouths: Study finds a need to clean the body part that lies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bmft4gY6LYg/100929142135.htm
Apparently your mom had it right when she threatened to wash your mouth out with soap if you talked dirty. Lying really does create a desire to clean the "dirty" body part, according to a University of Michigan study.
Thu, 30 Sep 10
Scientists genetically engineer silkworms to produce artificial spider silk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/O2B-3BLpjJs/100929142137.htm
A research and development effort by the University of Notre Dame, the University of Wyoming, and Kraig Biocraft Laboratories Inc. has succeeded in producing transgenic silkworms capable of spinning artificial spider silks.
Thu, 30 Sep 10
Evidence of post-stroke brain recovery discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-Haeubn0bRU/100928154259.htm
The world's largest study using neuroimaging of stroke patients struggling to regain ability to communicate finds that brain cells outside the damaged area can take on new roles.
Thu, 30 Sep 10
Coral bleaching likely in Caribbean this year
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bmVaUZpq2rc/100923104217.htm
Coral bleaching is likely in the Caribbean in 2010, according to new research. With temperatures above-average all year, NOAA's models show a strong potential for bleaching in the southern and southeastern Caribbean through October that could be as severe as in 2005 when over 80 percent of corals bleached and over 40 percent died at many sites across the Caribbean.
Thu, 30 Sep 10
Circulating tumor cells can provide 'real-time' information on patient's current disease state
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EXZsjAsLW2I/100928135039.htm
Circulating tumor cells may be a promising alternative, noninvasive source of tumor materials for biomarker assessment, according to new data.
Thu, 30 Sep 10
New oil detection technique
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zvwC9oqyv14/100928092837.htm
Australian scientists have developed a revolutionary technique for the rapid on-site detection and quantification of petroleum hydrocarbons (commonly derived from crude oil) in soil, silt, sediment or rock.
Thu, 30 Sep 10
Heartbreak puts the brakes on your heart
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RgQIO15uvTQ/100928111244.htm
Social rejection isn't just emotionally upsetting; it also upsets your heart. A new study finds that being rejected by another person makes your heart rate drop for a moment.
Thu, 30 Sep 10
Newly discovered planet may be first truly habitable exoplanet
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IbvTzB6lcMs/100929170503.htm
A team of planet hunters has announced the discovery of an Earth-sized planet (three times the mass of Earth) orbiting a nearby star at a distance that places it squarely in the middle of the star's "habitable zone," where liquid water could exist on the planet's surface. If confirmed, this would be the most Earth-like exoplanet yet discovered and the first strong case for a potentially habitable one.
Thu, 30 Sep 10
Key action of a gene linked to both Alzheimer's disease and type 2 diabetes identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SUWDLTIbZbo/100928171553.htm
A research team has identified the mechanism behind a single gene linked to the causes of both Alzheimer's disease and type 2 diabetes. The data show that a gene for a protein called SorCS1, which can cause type 2 diabetes, impacts the accumulation of amyloid-beta (Abeta) in the brain. Abeta plays a key role in the development of Alzheimer's disease.
Thu, 30 Sep 10
Genome inversion gives plant a new lifestyle
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9h4icmOFBE4/100928171434.htm
The yellow monkeyflower, an unassuming little plant that lives as both a perennial on the foggy coasts of the Pacific Northwest and a dry-land annual hundreds of miles inland, harbors a significant clue about evolution.
Thu, 30 Sep 10
Intrauterine devices can be used to treat endometrial cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MG2tZjq5Lew/100928193447.htm
Intrauterine devices, originally developed as contraceptives, can also be used to treat and even cure cancer of the endometrium according to new research. The finding opens the way for young women with the disease, which affects the lining of the womb, to be treated without the need for a hysterectomy, thus preserving their fertility until they have had all the children they want.
Thu, 30 Sep 10
Carbon nanoobjects to facilitate the construction of futuristic power sources
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cGIgKBwJHpw/100929084056.htm
Scientists from Poland are working on electrodes that have surfaces covered with layers of carbon nanoparticles and enzymes. These electrodes can be used to produce modern sensors and power sources, including such futuristic ones as biological fuel cells installed inside the human body and fueled by substances contained in blood.
Thu, 30 Sep 10
Playing white noise in class can help inattentive children learn, but hinder others
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vxDPmK8-8ls/100928193445.htm
Playing white noise in class can help inattentive children learn. Researchers tested the effect of the meaningless random noise on a group of 51 schoolchildren, finding that although it hindered the ability of those who normally pay attention, it improved the memory of those that had difficulties in paying attention.
Thu, 30 Sep 10
Sparkling drinks spark pain circuits: Fizzy beverages light up same pain sensors as mustard and horseradish
http://feeds.sciencedaily.com/~r/sciencedaily/~3/docs46cclxU/100928171555.htm
The carbon dioxide in carbonated drinks sets off the same pain sensors as mustard and horseradish, according to new study, as well as previously discovered sour-tasting cells on tongue.
Thu, 30 Sep 10
New device for identifying aggressive breast cancers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_3wfsqTGCyw/100928161006.htm
A disposable device has been designed to efficiently capture cancer cells overexpressing the protein HER2 in circulating blood. It may help identify advanced breast cancer patients who are candidates for therapy with the drug trastuzumab (Herceptin).
Thu, 30 Sep 10
Better surgery with new surgical robot with force feedback
http://feeds.sciencedaily.com/~r/sciencedaily/~3/We2odOBNacc/100928083848.htm
A compact surgical robot, which uses 'force feedback' to allow surgeons to feel what they are doing, has just been developed.
Thu, 30 Sep 10
Twitter used to predict flu outbreaks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lBakxmq21Wk/100928153809.htm
Keeping track of disease trends such as influenza outbreaks has the potential to be far quicker and less costly by monitoring a social network program such as Twitter than following the traditional methods of disease surveillance, according to a computer science expert.
Thu, 30 Sep 10
Climate accord loopholes could spell 4.2-degree rise in temperature and end of coral reefs by 2100
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fbTowRBhVhw/100929083513.htm
A global temperature increase of up to 4.2 degrees Celsius and the end of coral reefs could become reality by 2100 if national targets are not revised in the Copenhagen Accord, the international pledge which was agreed at last year's Copenhagen's COP15 climate change conference, according to a new report.
Thu, 30 Sep 10
Absent mothers can cause hyperactivity and anxiety in offspring later in life, mouse study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ny2Jq7Yta5U/100928193450.htm
In mice, early weaning and separation from their mothers promotes long-lasting hyperactivity and anxiety. Researchers describe the development of this new behavioral model, which they hope to use to investigate the long-term effects of early childhood neglect in people.
Thu, 30 Sep 10
More than one-fifth of world's plants face threat of extinction, new analysis finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FXs3gIAMuTg/100928193452.htm
A global analysis of extinction risk for the world's plants, conducted by the Royal Botanic Gardens, Kew together with the Natural History Museum, London and the International Union for the Conservation of Nature (IUCN), has revealed that the world's plants are as threatened as mammals, with one in five of the world's plant species threatened with extinction.
Thu, 30 Sep 10
Single electron reader opens path for quantum computing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1sswqp1_rJY/100927105353.htm
A team led by engineers and physicists in Australia has developed one of the key building blocks needed to make a quantum computer using silicon: a "single electron reader."
Wed, 29 Sep 10
Making music on a microscopic scale
http://feeds.sciencedaily.com/~r/sciencedaily/~3/R_Lw0sd3Z9g/100928083836.htm
Strings a fraction of the thickness of a human hair, with microscopic weights to pluck them: Researchers and students have succeeded in constructing the first musical instrument with dimensions measured in mere micrometers -- a 'micronium' -- that produces audible tones. A composition has been specially written for the instrument.
Wed, 29 Sep 10
Revolutionary new way of reversing certain cancers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ld8Djn_b6Jw/100928092843.htm
Australian and American scientists have found a way of shrinking tumors in certain cancers -- a finding that provides hope for new treatments. The cancers in question are those caused by a new class of genes known as "microRNAs," produced by parts of the genome that, until recently, were dismissed as "junk DNA." While much is still unknown about microRNAs, it is clear that they can interfere with how our genes are "read."
Wed, 29 Sep 10
Ultrafine air particles may increase firefighters' risk for heart disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZBxpOeVq3HU/100928111136.htm
Firefighters are exposed to potentially dangerous levels of ultrafine particulates at the time they are least likely to wear protective breathing equipment. Because of this, researchers believe firefighters may face an increased risk for heart disease from exposures during the fire suppression process.
Wed, 29 Sep 10
Mining the 'wisdom of crowds' to attack disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2HqRSW1IPBI/100928171549.htm
A large, multidisciplinary panel has recently selected 12 pioneering ideas for attacking type 1 diabetes, ideas selected through a "crowd-sourcing" experiment called the Challenge in which all members of the Harvard community, as well as members of the general public, were invited to answer the question: What do we not know to cure type 1 diabetes?
Wed, 29 Sep 10
Tiny generators turn waste heat into power
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rBnDljQbHvU/100928161004.htm
Researchers have uncovered a novel way to power tiny devices using waste heat. Arrays of tiny ferroelectric nanowires have been shown to rapidly generate a current in response to any change in the ambient temperature.
Wed, 29 Sep 10
First study of its kind finds children with food allergies are often victims of bullying
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LaU8_uzQ2sc/100928032616.htm
In the first-ever study to assess the social impact of food allergies in children, researchers have found that approximately 35 percent of children with food allergies, who are over the age of 5, were reported to have experienced bullying, teasing or harassment as a result of their allergies.
Wed, 29 Sep 10
Combination of Viagra and anti-cancer drug shrinks tumors in vivo, researchers discover
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qEO3F29dpGA/100927155318.htm
Researchers have shown that the impotence drug Viagra (sildenafil), in combination with doxorubicin, a powerful anti-cancer drug, enhances its anti-tumor efficacy in prostate cancer while alleviating the damage to the heart at the same time.
Wed, 29 Sep 10
Brilliant Northeast fall colors hang in the balance, and heat is the deciding factor
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Bh4lqJwalRM/100928152804.htm
The abundant sunshine we have had much of this summer and fall has likely produced leaves high in sugars, and sugars are important for production of anthocyanins pigments which produce rich red colors.
Wed, 29 Sep 10
Unique case offers cautionary cotton swab tale
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4CoQkPe6OeQ/100928171547.htm
The saying, "never put anything smaller than your elbow in your ear," couldn't be truer for a patient who experienced vertigo and hearing loss after a cotton swab perforated her eardrum. But what makes this case unique is that Henry Ford Hospital was not only able to alleviate her vertigo with surgery, but restore her hearing. And the report offers a cautionary tale to those who use cotton swabs to clean their ears.
Wed, 29 Sep 10
NASA's Webb Telescope unique structural 'heart' passes extreme tests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pvHMd-7DehY/100928161000.htm
NASA engineers have created a unique engineering marvel called the ISIM structure that recently survived exposure to extreme cryogenic temperatures, showing that the structure will remain stable when exposed to the harsh environment of space. The material that comprises the structure, as well as the bonding techniques used to join its roughly 900 structural components, were all created from scratch.
Wed, 29 Sep 10
Predicting divorce: Study shows how fight styles affect marriage
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rNDAMBj8uoY/100928152022.htm
It's common knowledge that newlyweds who yell or call each other names have a higher chance of getting divorced. But a new study shows that other conflict patterns also predict divorce.
Wed, 29 Sep 10
Acidification of oceans may contribute to global declines of shellfish
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3BZ4j5t6T8g/100928154754.htm
The acidification of the Earth's oceans due to rising levels of carbon dioxide (CO2) may be contributing to a global decline of clams, scallops and other shellfish by interfering with the development of shellfish larvae, according to scientists.
Wed, 29 Sep 10
Mechanism behind cleft palate development identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FCdpmCe3UvQ/100914171317.htm
Researchers have found a new mechanism that explains why a certain gene mutation causes craniofrontonasal syndrome, a disorder that causes cleft palate and other malformations in the face, brain and skeleton. Cleft palate affects one of every 1,000 newborns.
Wed, 29 Sep 10
Researchers find differences between Galapagos and mainland frigatebirds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IOAhB2zR8Ho/100928122606.htm
The Galapagos population of the magnificent frigatebird may be its own genetically distinct species warranting a new conservation status, according to a new study.
Wed, 29 Sep 10
How to control massive bleeding from the hepatic artery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xlKVg1XUhJo/100920111342.htm
A research team from China investigated the minimal invasive techniques to stop the life-threatening hemorrhage from ruptured hepatic artery pseudoaneurysm after pancreaticoduodenectomy. They found that placement of stent-grafts is an effective and safe procedure for acute life-threatening hemorrhage from ruptured hepatic artery pseudoaneurysm.
Wed, 29 Sep 10
The precious commodity of water
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ttaZEemT8yo/100910130557.htm
Water is a valuable resource, which is why researchers are demonstrating how we can extract precious drinking water from air, discover a leak in pipeline systems and even effectively clean sewage water.
Wed, 29 Sep 10
Family, culture affect whether intelligence leads to education, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RVDIIvJEMHo/100927155328.htm
Intelligence isn't the only thing that predicts how much education people get; family, culture, and other factors are important, too. A new study compares identical and fraternal twins in Minnesota and Sweden to explore how genetic and environmental factors involved in educational differ in countries with different educational systems. Family background can get an education even for people of low intelligence, the authors conclude -- but helps much more in Minnesota than in Sweden.
Wed, 29 Sep 10
19-million-year-old genomic fossils of hepatitis B-like viruses in songbirds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-d0VQpBDZwE/100928171426.htm
Biologists have uncovered virus fragments from the same family of the modern hepatitis B virus locked inside the genomes of songbirds such as the modern-day zebra finch.
Wed, 29 Sep 10
Scarless brain surgery is new option for patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0BTksIqvcP0/100928155427.htm
Surgeons now suggest that transorbital neuroendoscopic surgery (TONES) is a safe and effective option for treating a variety of advanced brain diseases and traumatic injuries. This groundbreaking minimally invasive surgery is performed through the eye socket, thus eliminating the removal of the top of the skull to access the brain.
Wed, 29 Sep 10
Scientists obtain 'Unobtainium' for NASA's next space observatory
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3yld0_z7dMM/100928160958.htm
Imagine building a car chassis without a blueprint or even a list of recommended construction materials. In a sense, that's precisely what a team of engineers did when they designed a one-of-a-kind structure that is one of nine key new technology systems of the Integrated Science Instrument Module (ISIM).
Wed, 29 Sep 10
JAK inhibitor provides rapid, durable relief for patients of myelofibrosis -- life-threatening bone marrow malignancy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Z5YHoM9VoZw/100915171526.htm
An oral medication produces significant and lasting relief for patients with myelofibrosis, a debilitating and lethal bone marrow disorder, researchers report.
Wed, 29 Sep 10
Sustainable material for wine bottle stoppers being developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0fQpyquMJoo/100920081328.htm
Researchers are developing a new sustainable material to make stoppers for wine bottles. The aim of the project is to substitute the plastic stoppers used for wine bottles with stoppers that are made up of a composite material.
Wed, 29 Sep 10
Buyer backlash: Why do slogans about saving money increase spending?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AYd__heTHlw/100920172748.htm
A new study reveals a strange facet of consumer behavior: people behave differently when they encounter companies' brands than they do when they encounter their slogans.
Wed, 29 Sep 10
Sneaking spies into a cell's nucleus
http://feeds.sciencedaily.com/~r/sciencedaily/~3/A16MYViO1vE/100928111237.htm
Bioengineers have not only figured out a way to sneak molecular spies through the walls of individual cells, they can now slip them into the command center -- or nucleus -- of those cells, where they can report back important information or drop off payloads.
Wed, 29 Sep 10
Biomarker panel identifies prostate cancer with 90 percent accuracy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fCkAAwIWHi8/100928152012.htm
Researchers in England say they have discovered a set of biomarkers that can distinguish prostate cancer from benign prostate disease and healthy tissue with 90 percent accuracy. This preliminary data, if validated in larger ongoing studies, could be developed into a serum protein test that reduces the number of unnecessary biopsies and identifies men who need treatment before symptoms begin.
Wed, 29 Sep 10
Potential climate change side effect: More parasites on South American birds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kPxSthPNMA4/100928135053.htm
A new study on nesting birds in Argentina finds that increasing temperatures and rainfall -- both side effects of climate change in some parts of the world -- could be bad for birds of South America, but great for some of their parasites which thrive in warmer and wetter conditions.
Wed, 29 Sep 10
Scientists consider fate of pandemic H1N1 flu virus
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FM4nNLJJZy0/100928122559.htm
In a new commentary, scientists review the fates of previous pandemic influenza viruses in the years following a pandemic and speculate on possible future courses for the 2009 pandemic H1N1 virus during the upcoming flu season and beyond.
Wed, 29 Sep 10
Structural Genomics Consortium releases 1,000th protein structure
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yT9h4UsqwuU/100928122601.htm
The Structural Genomics Consortium, an international public-private partnership that aims to determine 3-D structures of medically important proteins, has announced the release into the public domain of its 1,000th high-resolution protein structure.
Wed, 29 Sep 10
Why we fight: Men check out in stressful situations, while women show increased brain coordination when looking at angry faces
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7zh2CzpM5do/100928135056.htm
Turns out the silent and stoic response to stress might be a guy thing after all. A new study reveals that stressed men looking at angry faces had diminished activity in the brain regions responsible for understanding others' feelings.
Wed, 29 Sep 10
Solar cells thinner than wavelengths of light hold huge power potential
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fMzb5TTLY-U/100928092841.htm
Ultra-thin solar cells can absorb sunlight more efficiently than the thicker, more expensive-to-make silicon cells used today, because light behaves differently at scales around a nanometer (a billionth of a meter), say engineers. They calculate that an organic polymer thin film could absorb as much as 10 times more energy from sunlight than was thought possible.
Wed, 29 Sep 10
Triple-negative breast cancers may have unique therapeutic target
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tOSYN2iMLYQ/100928152010.htm
Patients with triple-negative breast cancer, one of the hardest subtypes to treat, may have a unique biomarker that would enable them to receive more targeted therapy, according to new data.
Wed, 29 Sep 10
Genetic differences in sense of smell identified through asparagus urine odor
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8iwopvATQds/100928111231.htm
Scientists have identified one of only a few known genetic contributions to the sense of smell. Most, but not all, people detect a distinct sulfurous odor in their urine shortly after eating asparagus. Sensory testing demonstrated that some do not produce the odor while others do not smell it. DNA analyses revealed that the inability to smell the odor was linked to genetic variation within a family of olfactory receptors.
Wed, 29 Sep 10
Researchers use CT to predict heart disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hjqZyUfUqxc/100928032610.htm
Using incidental findings from routine diagnostic CT, radiologists may be better able to identify people at high risk for cardiovascular disease, according to a new study.
Wed, 29 Sep 10
'Truthy' web site to search, identify smear tactics, Twitter-bombs through election runup
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gdTqOMA-FNg/100928122612.htm
Astroturfers, Twitter-bombers and smear campaigners need beware this election season as a group of leading Indiana University information and computer scientists today unleashed Truthy.indiana.edu, a sophisticated new Twitter-based research tool that combines data mining, social network analysis and crowdsourcing to uncover deceptive tactics and misinformation leading up to the Nov. 2 elections.
Wed, 29 Sep 10
How reasonable it is to deceive yourself?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kMtxABCLnuU/100928101421.htm
Anyone who simply denies the facts is most certainly behaving unreasonably -- aren't they? Philosophers explain that in some cases it may be useful to deceive yourself. The self-deception can be an important motivating factor and not entirely lacking reason. The reason may be locally restricted, however basic strategies of rational evaluation processes remain intact.
Wed, 29 Sep 10
'Firefly' stem cells may help repair damaged hearts
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SvKcwqyDkFY/100928111122.htm
Stem cells that glow like fireflies could someday help doctors heal damaged hearts without cutting into patients' chests. Researchers engineered stem cells with the same enzyme that makes fireflies glow. The "firefly" stem cells glow brighter and brighter as they develop into healthy heart muscle, allowing doctors to track whether and where the stem cells are working.
Wed, 29 Sep 10
Scientists find more health benefits from starting HIV treatment early
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kY9DNdt6ta8/100928111233.htm
HIV-infected individuals who begin antiretroviral therapy (ART) soon after acquiring the virus may have stronger immune responses to other pathogens than HIV-infected individuals who begin ART later, a new study has found. This finding suggests that early initiation of ART may prevent irreversible immune system damage and adds to the body of evidence showing significant health benefits from early ART.
Wed, 29 Sep 10
Pet allergies worsen hay fever symptoms, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0BIxKoXR76g/100928141550.htm
Being allergic to dogs or cats may worsen your ragweed allergies, according to a new study. Researchers found that people with pet allergies often develop ragweed allergy symptoms more quickly than others. But the study also suggests that once allergy season is in full swing, those symptom differences subside.
Wed, 29 Sep 10
New biomarkers discovered for pancreatic cancer and mesothelioma
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-M9Wov2XRZA/100928152015.htm
Using a novel aptamer-based proteomics array technology, researchers and collaborators have identified biomarkers and protein signatures that are hallmarks of cancer at an early stage for two of the most aggressive and deadly forms of cancer -- pancreatic and mesothelioma.
Wed, 29 Sep 10
Geologists find parts of Northwest Houston, Texas sinking rapidly
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mfiORYZXULM/100928122604.htm
A large section of northwestern Harris County in the area of Houston, Texas is sinking rapidly, according to a geologist who has analyzed GPS data measuring ground elevation in the area. The researchers studied a decade's worth of detailed GPS data measuring the elevation of various points throughout the Houston area.
Wed, 29 Sep 10
The price of popularity: Drug and alcohol consumption
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4n6Kso8_tF8/100928101427.htm
The consumption of drugs and alcohol by teenagers is not just about rebellion or emotional troubles. It's about being one of the cool kids, according to a new study.
Wed, 29 Sep 10
'Hobbit' was an iodine-deficient human, not another species, new study suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eRTo5Cx86lU/100928025514.htm
A new paper is set to re-ignite debate over the origins of so-called Homo floresiensis -- the 'hobbit' that some scientists have claimed as a new species of human. Researchers have reconfirmed their original finding on the skull that Homo floresiensis in fact bears the hallmarks of humans -- Homo sapiens -- affected by hypothyroid cretinism.
Wed, 29 Sep 10
Daycare puts children with lung disease at risk for serious illness, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/amlsuQ57iaw/100927083815.htm
Exposure to common viruses in daycare puts children with a chronic lung condition caused by premature birth at risk for serious respiratory infections, according to a new study.
Wed, 29 Sep 10
For neurons to work as a team, it helps to have a beat
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NSwVZx3ykcg/100920151806.htm
When it comes to conducting complex tasks, it turns out that the brain needs rhythm, according to researchers. Neuroscientists have found that cortical rhythms, or oscillations, can effectively rally groups of neurons in widely dispersed regions of the brain to engage in coordinated activity, much like a conductor will summon up various sections of an orchestra in a symphony.
Wed, 29 Sep 10
Medical imaging may detect unrelated diseases in research participants
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0cBbFL68O-A/100927162247.htm
In about 40 percent of research participants undergoing medical imaging, radiologists may detect a tumor or infection unrelated to the study but that may be meaningful to the individual's health, according to a new study.
Wed, 29 Sep 10
Software downloaded during office visits could cut risk of ICD shocks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hlwODs0W5tQ/100927162258.htm
In a study of patients with implantable cardioverter defibrillators (ICD), downloadable software updates cut the risk of unnecessary shocks in half. In the future, software upgrades may offer patients other ICD improvements without implanting new devices.
Wed, 29 Sep 10
Baby boomers raise midlife suicide rate, study suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/blOphb9jsnk/100927105201.htm
Baby boomers appear to be driving a dramatic rise in suicide rates among middle-aged people. The suicide rate for middle-aged people -- a group considered relatively protected from suicide and with historically stable suicide rates -- increased between 1999 and 2005, according to a new study. Researchers found significant increases of more than 2 percent per year for men, and more than 3 percent for women, from 1999 to 2005.
Wed, 29 Sep 10
Right or left? Brain stimulation can change which hand you favor
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zlf_hO0TmdY/100927162302.htm
Each time we perform a simple task, like pushing an elevator button or reaching for a cup of coffee, the brain races to decide whether the left or right hand will do the job. But the left hand is more likely to win if a certain region of the brain receives magnetic stimulation, according to new research.
Tue, 28 Sep 10
Quantum information systems: Researchers convert signals to telecom wavelengths, increase memory times
http://feeds.sciencedaily.com/~r/sciencedaily/~3/q4d-5rN1oNM/100926195027.htm
Using optically dense, ultra-cold clouds of rubidium atoms, researchers have made advances in three key elements needed for quantum information systems -- including a technique for converting photons carrying quantum data to wavelengths that can be transmitted long distances on optical fiber telecom networks.
Tue, 28 Sep 10
Patient-specific vaccines for metastatic melanoma may induce durable complete regression, study shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vguuZjefeRY/100927112948.htm
Researchers have announced encouraging clinical study results for patient-specific vaccine therapy to treat metastatic melanoma. The study is ongoing, but the report concludes that patient-specific vaccines can sometimes induce durable complete regression of progressing soft-tissue melanoma metastases, as demonstrated in one particular patient who participated in the trial.
Tue, 28 Sep 10
Winter drought stress can delay flowering, prevent fruit loss in orange crops
http://feeds.sciencedaily.com/~r/sciencedaily/~3/foyXtGJWWz4/100920151811.htm
Successful mechanical harvesting of perennial fruit crops requires efficient, economical harvesting systems that do not reduce trees' production life or diminish fruit quality. Researchers have published a new study that determined if winter drought stress could successfully delay flowering and fruit development of immature 'Valencia' sweet oranges to avoid young fruit loss during late-season mechanical harvesting.
Tue, 28 Sep 10
Novel mechanism discovered for communication between proteins that cause ‘cell suicide’
http://feeds.sciencedaily.com/~r/sciencedaily/~3/50ZL9HrdDmE/100927083901.htm
A recent study provides new clues for the understanding of the 'cell suicide' process. Research reveals that three essential components of the apoptotic process, the BAX and DRP-1 proteins and cardiolipin, act in a joint manner to produce a large hole in the external membrane of the mitochondria, proving to be lethal for the cell.
Tue, 28 Sep 10
Cause of dead zone in Gulf: Tile drainage directly related to nitrate loss
http://feeds.sciencedaily.com/~r/sciencedaily/~3/b1ZyLCniqv4/100927122225.htm
A recent study shows that the most heavily tile-drained areas of North America are also the largest contributing source of nitrate to the Gulf of Mexico, leading to seasonal hypoxia. In the summer of 2010 this dead zone in the Gulf spanned over 7,000 square miles.
Tue, 28 Sep 10
Medical profession needs special training to handle self-harm, says international review
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZEcOz-tdGus/100927083903.htm
Healthcare professionals are still not receiving the appropriate training and support they need to help people who self-harm and this can result in negative attitudes and inadequate levels of care. Mental health specialists from the UK studied research covering the views of 1,300 nurses, other healthcare professionals and service users. They found that the lack of professional education on self-harm for healthcare staff was the main cause of negative attitudes.
Tue, 28 Sep 10
Quarks 'swing' to the tones of random numbers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bAPI4Et-2PE/100927105029.htm
Quarks are found in protons and are bound together by forces which cause all other known forces of nature to fade. To understand the effects of these strong forces between the quarks is one of the greatest challenges in modern particle physics. New theoretical results show that enormous quantities of random numbers can describe the way quarks "swing" inside the protons.
Tue, 28 Sep 10
Celiac disease rate is growing, particularly among elderly, study reveals
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hrRWBoELYbM/100927083811.htm
The number of celiac disease cases in the US has doubled every 15 years since 1974, increasing particularly among older people, according to a new study. As people in the study aged, the incidence of celiac rose, echoing a previous study that found the rate of celiac in the elderly to be nearly two and a half times higher than the general population.
Tue, 28 Sep 10
Let your fingers do the driving: If you don't hear directions, you can feel them
http://feeds.sciencedaily.com/~r/sciencedaily/~3/w1iipS6DBVE/100927083819.htm
If drivers are yakking on cell phones and don't hear spoken instructions to turn left or right from a passenger or navigation system, they still can get directions from devices that are mounted on the steering wheel and pull skin on the driver's index fingertips left or right, a study found. The study may lead to new navigation devices for motorists, hearing-impaired drivers and blind pedestrians.
Tue, 28 Sep 10
Acupuncture not effective in stroke recovery, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RoLE11nZMo8/100927122213.htm
Acupuncture does not appear to aid in stroke recovery, according to a new study.
Tue, 28 Sep 10
Elevated nitrogen and phosphorus still widespread in U.S. streams and groundwater
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3sfws0rzBUs/100927122223.htm
Elevated concentrations of nitrogen and phosphorus, nutrients that can negatively impact aquatic ecosystems and human health, have remained the same or increased in many streams and aquifers across the United States since the early 1990s, according to a new national study.
Tue, 28 Sep 10
Brainstorming 'rules' can lead to real-world success in business settings
http://feeds.sciencedaily.com/~r/sciencedaily/~3/25dUR7SYyvI/100927105205.htm
Researchers have long held that there are steps that can be taken to make brainstorming sessions more productive. New research finds that these recommendations actually do contribute to success when applied in real-world business environments.
Tue, 28 Sep 10
Genetic clues to evolution of jaws in vertebrates unearthed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EbRz4FOvNsM/100924095840.htm
A half-billion years ago, vertebrates lacked the ability to chew their food. They did not have jaws. Instead, their heads consisted of a flexible, fused basket of cartilage.
Tue, 28 Sep 10
Gene linked to common form of migraine discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uE0zkDe-voc/100927105351.htm
An international study has identified a gene associated with common migraines. Their findings show that a mutation in the KCNK18 gene inhibits the function of a protein called TRESK. TRESK normally plays a key role in nerve cell communication. Published today in Nature Medicine, this study may have implications for people who suffer from recurrent headaches, which include more than 6 million Canadians.
Tue, 28 Sep 10
Gigantic mirror for X-radiation in outer space
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TEssaa3EnTg/100927083909.htm
It is to become the largest X-ray telescope ever: The International X-Ray Observatory (IXO), which has been planned in a cooperation between NASA, the European Space Agency (ESA) and Japan's Aerospace Exploration Agency JAXA, will be launched into space in 2021 and provide the world with brand new information about black holes and, thus, about the origin of the universe. Its dimensions are gigantic: The surface of the mirror alone, which is to capture, for example, the cosmic X-radiation of black holes, will be 1300 square meters in size.
Tue, 28 Sep 10
Rewiring a damaged brain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XvtJAghcGZ8/100927105159.htm
Researchers are developing microelectronic circuits to bypass brain damage and induce the growth of axons, rewiring the lost connections.
Tue, 28 Sep 10
U.S. vulnerable to multidrug-resistant TB epidemic, computer model shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7vjfU8W8ddQ/100927112946.htm
While the United States has made great progress in the prevention and treatment of tuberculosis, the nation has become more susceptible to potential epidemics of multidrug-resistant tuberculosis, or MDR-TB, according a new study. Computer simulations show that as TB prevalence falls, the risk for more extensive MDR-TB increases. In addition, the simulation also showed that higher detection of TB cases without proper treatment of cases also increased risk.
Tue, 28 Sep 10
No pain in the hospital: Wishful thinking or reality?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Mo2_cEgOGVw/100920101011.htm
More than 80% of hospitalized patients suffer more severe pain than necessary, new research from Germany suggests.
Tue, 28 Sep 10
Physics breakthrough: Fast-moving neutral atom isolated and captured
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0IuNFLvKXN4/100927002308.htm
In a major physics breakthrough, scientists in New Zealand have developed a technique to consistently isolate and capture a fast-moving neutral atom -- and have also seen and photographed this atom for the first time.
Tue, 28 Sep 10
Could brain abnormalities cause antisocial behavior and drug abuse in boys?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DjYFp3M1A50/100923104212.htm
Antisocial boys who abuse drugs, break laws and act recklessly are not just "bad" kids. Many of these boys may have malfunctioning brains, according to a new study.
Tue, 28 Sep 10
Early reproduction retains fertility in cheetah females
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SMz6vJgYa1I/100922081750.htm
Reproduction in free-ranging female cheetah in Namibia is far better than expected. Their reproductive organs are healthy and approximately 80 percent of their young reach adulthood. With these findings, scientists in Germany have overturned the established dogma that cheetahs generally reproduce badly due to their low genetic diversity. The scientists demonstrated that female fertility critically depended on the age at which they conceived their first litter.
Tue, 28 Sep 10
Physicians beware: Cholesterol counts in kidney disease patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iJSV5Va2LM8/100923184445.htm
To understand the health effects of high cholesterol levels, doctors first need to assess malnutrition and inflammation status in their chronic kidney disease patients, according to a new study.
Tue, 28 Sep 10
Greener pastures and better breeds could reduce carbon 'hoofprint'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/V2wGV6UhGUQ/100909141533.htm
Greenhouse gas emissions caused by livestock operations in tropical countries -- a major contributor to climate change -- could be cut significantly by changing diets and breeds and improving degraded lands, according to a new study. And as an added bonus, scientists found the small changes in production practices could provide a big payoff by providing poor farmers with up to $1.3 billion annually in payments for carbon offsets.
Tue, 28 Sep 10
Light workout: Scientists use optogenetics to effectively stimulate muscle movement in mice
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DFbdoz3HWMY/100926195020.htm
Researchers were able to use light to induce normal patterns of muscle contraction, in a study involving bioengineered mice whose nerve-cell surfaces are coated with special light-sensitive proteins.
Tue, 28 Sep 10
Inhibiting cell signaling pathway may improve bone marrow transplant success rate
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LXqjAHMnRw4/100926195025.htm
Identification of a molecular communications pathway that influences the mobilization of hematopoietic (blood) stem cells could lead to targeted therapies for improving bone marrow transplant success rates. Researchers report a scientific basis for enhancing the effectiveness of autologous bone marrow transplants, in which the recipient donates his or her own stem cells prior to the procedure.
Tue, 28 Sep 10
Egyptian desert expedition confirms spectacular meteorite impact
http://feeds.sciencedaily.com/~r/sciencedaily/~3/w29mi__2Jo0/100923081902.htm
A 2008 Google Earth search led to the discovery of Kamil crater, one of the best-preserved meteorite impact sites ever found. Earlier this year, a gritty, sand-blown expedition reached the site deep in the Egyptian desert to collect iron debris and determine the crater's age and origins.
Tue, 28 Sep 10
Millions with voice problems don't know treatment available, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ytacfkjiHT4/100920135133.htm
Two-thirds of Americans with voice problems don't seek medical care either because they don't know treatment is available or because they think the problem will just go away, according to a new study.
Tue, 28 Sep 10
How safe is your swipe? Thinking like hackers, programmers find security loopholes in 'secure' microchips
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8g_wPl728wM/100920123914.htm
Researchers in Israel have developed an innovative way of extracting information from chip technology. By combining modern cryptology methods with constraint programming -- an area of computer science designed to solve a series of complex equations -- the researchers were able to extract more information from secure chips.
Tue, 28 Sep 10
Pinpointing where volcanic eruptions could strike
http://feeds.sciencedaily.com/~r/sciencedaily/~3/783I2pdbCRU/100926195032.htm
A better way to pinpoint where volcanic eruptions are likely to occur has been produced by an international team of geophysicists.
Tue, 28 Sep 10
Why are there no hyenas in Europe?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/onmnB2XXmlQ/100923105759.htm
Researchers have analyzed the impact of climate change on spotted hyena survival in Europe over 10,000 years ago. These changes played an important role, but the scientists say studies are still needed to look at the influence of human expansion and changes in herbivorous fauna on the definitive extinction of this species across the continent.
Tue, 28 Sep 10
Cellular structural molecule can be toxic: Makes pneumonia worse
http://feeds.sciencedaily.com/~r/sciencedaily/~3/H0CtLFAG-cY/100920123918.htm
A structural molecule called cardiolipin and the cellular pump that regulates its levels influence the severity of pneumonia and could provide new ways of treating the lung infection, which is a leading cause of hospitalization and death, according to scientists.
Tue, 28 Sep 10
Lead-free piezoelectric materials of the future
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2PoRV66cFA4/100914095922.htm
Over the past 60 years, lead zirconate titanate, or PZT, has been the material of choice for piezoelectric applications from ink jet printers to gas grill igniters. Despite this success, many scientists would like to find a more environmentally-friendly, lead-free material. The theoretical potential of another class of materials has now been shown.
Tue, 28 Sep 10
New look at racial disparities in head and neck cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6sA0Zy1KVQo/100926195030.htm
Head and neck cancer outcomes associated with race may be more closely linked to social and behavioral factors than biological differences, especially for African-Americans, according to a new study. Researchers found that while those who self-reported to be African-American are at greater risk for late stage cancer, there was no correlation between patients' genetic ancestry and cancer stage or survival.
Tue, 28 Sep 10
Mystery of disappearing Martian carbon dioxide ice solved?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jE9uENnO0EE/100922124546.htm
Scientists may have solved the mystery of the carbon dioxide ice disappearance early in the Northern Martian springs followed later by its sudden reappearance, revealing a very active water cycle on the planet.
Tue, 28 Sep 10
Malaria's newest pathway into human cells identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Z9x7evxFVjU/100924095831.htm
Development of an effective vaccine for malaria is a step closer following identification of a key pathway used by the malaria parasite to infect human cells. The discovery provides a new vaccine target through which infection with the deadly disease could be prevented.
Tue, 28 Sep 10
Genetic switch underlies noisy cell division: 'Bimodal' signal determines a cell's get-up and go
http://feeds.sciencedaily.com/~r/sciencedaily/~3/R04ZVXP6wkM/100923104146.htm
While scientists have spent the past 40 years describing the intricate series of events that occur when one mammalian cell divides into two, they still haven't agreed on how the process begins. Two seemingly contradictory theories may now be reconciled by a third theory.
Tue, 28 Sep 10
Studies identify complications in women undergoing mastectomy and immediate breast reconstruction
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CORrOm5FOb8/100920172632.htm
About half of women who require radiation therapy after they have had a mastectomy and immediate breast reconstruction develop complications that necessitate a return to the operating room, but pre- or post-mastectomy chemotherapy does not appear to be associated with the need for additional procedures, according to two new studies.
Tue, 28 Sep 10
More predators doesn't equal more danger for urban bird nest, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PxbAhk-N8JY/100923125117.htm
While birds living in urban areas face more predators than do those in rural areas, that doesn't mean urban birds face more danger from nest robbers. A six-year study conducted in 19 central Ohio forests from 2004 to 2009 found that, as expected, rural areas that had higher numbers of nest predators such as raccoons, domestic cats and crows, also showed lower rates of nest survival.
Tue, 28 Sep 10
Privacy key obstacle to adopting electronic health records, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xSZnxsytMyo/100920111319.htm
The United States could achieve significant health care savings if it achieved widespread adoption of electronic health records (EHRs), but insufficient privacy protections are hindering public acceptance of the EHR concept, according to a new paper that outlines steps that could be taken to boost privacy and promote the use of EHRs.
Tue, 28 Sep 10
How molecules escape from cell's nucleus: Key advance in using microscopy to reveal secrets of living cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wc1fCIKQXNg/100915140121.htm
By constructing a microscope apparatus that achieves resolution never before possible in living cells, researchers have illuminated the molecular interactions that occur during one of the most important "trips" in all of biology: the journey of individual messenger ribonucleic acid (RNA) molecules from the nucleus into the cytoplasm (the area between the nucleus and cell membrane) so that proteins can be made.
Tue, 28 Sep 10
Elderly might not benefit from TB vaccines in development
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KcK8cxJXlG8/100920123555.htm
Elderly people might not benefit from some of the tuberculosis vaccines currently in development, recent research suggests. Some vaccines under study are designed to activate a specific molecule that is an early participant in the immune response against TB in young people. But a recent study suggests that in older people, this molecule remains relatively inactive, even in the face of TB infection.
Tue, 28 Sep 10
Mechanical transmission without contact between parts
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pK_X8tsQ7rw/100920081326.htm
Researchers in Spain are coordinating an international project to develop a new concept of mechanical transmission without contact between parts, based on magnetic forces, which prevents friction and wear as well as making lubrication of the parts unnecessary.
Tue, 28 Sep 10
Cancer-associated long non-coding RNA regulates pre-mRNA splicing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5fVNT2Xgw6c/100923162412.htm
Researchers report this month that MALAT1, a long non-coding RNA that is implicated in certain cancers, regulates pre-mRNA splicing -- a critical step in the earliest stage of protein production.
Tue, 28 Sep 10
Savvy consumers put a high price on food safety
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rezHPXFTIV4/100921143928.htm
New research demonstrates how food safety announcements cause consumers as well as food industry professionals to make purchasing decisions.
Mon, 27 Sep 10
Surgery can lead to long-term reduction in stroke risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tDGlAWgGWrk/100926105246.htm
Successful surgery for narrowed arteries in the neck halves the risk of having a stroke over the next 5 years, and benefit persists for at least 10 years, a new study has shown.
Sun, 26 Sep 10
Magnetic anomalies: New type of solar wind interaction with airless bodies in our solar system
http://feeds.sciencedaily.com/~r/sciencedaily/~3/m9nZOqNlSjg/100923190805.htm
Scientists have discovered a new type of solar wind interaction with airless bodies in our solar system. Magnetized regions called magnetic anomalies, mostly on the far side of the Moon, were found to strongly deflect the solar wind, shielding the Moon’s surface. This will help scientists understand the solar wind behavior near the lunar surface and how water may be generated in its upper layer.
Sun, 26 Sep 10
Structure that allows bacteria to resist drugs identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EswlsLbT2VI/100923104148.htm
Researchers have discovered the crystal structures of pumps that allow bacteria to resist heavy metal toxins and antibiotics.
Sun, 26 Sep 10
Men look for good bodies in short-term mates, pretty faces in long-term mates
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mih0tM8cMdo/100925105837.htm
Men who are looking for short-term companionship are more interested in a woman's body than those looking for a long-term relationship, who focused on a woman's face, according to new research.
Sun, 26 Sep 10
Tight blood pressure control for patients with diabetes and coronary artery disease not associated with improved cardiovascular outcomes, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3vid5Yi9YAA/100706161751.htm
Patients with hypertension, diabetes and coronary artery disease who maintained their systolic blood pressure at less than 130 mm Hg did not have improved cardiovascular outcomes compared to patients with usual blood pressure control, according to a new study.
Sun, 26 Sep 10
Tool to improve Wikipedia accuracy developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/W1RYnZYskFE/100924212131.htm
Check the Microsoft entry on Wikipedia at some point in the past and you might have learned that the company's name is Microshaft, its products are evil and its logo is a kitten. Similarly, you may have learned from Abraham Lincoln's Wikipedia entry that he was married to Brayson Kondracki, his birth date is March 14 and Pete likes PANCAKES.
Sun, 26 Sep 10
Nearly one in three adolescents participated in a violent behavior over past year, U.S. study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/y7n6barTTSw/100925104536.htm
A new national U.S. study reveals that nearly 7.8 million adolescents aged 12 to 17, almost one third (30.9 percent), participated in any of three violent behaviors over the past year. The study showed that 22.6 percent of adolescents reported having participated in a serious fight at school or work; 16.1 percent reported involvement in group-against-group fighting; and 7.5 percent reported attacking others with intent to seriously hurt them.
Sun, 26 Sep 10
The joy of sets: For ants and trees, multiple partners are a boon
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Q7U-1fPNj4I/100921144131.htm
In the complex world of ant-plant partnerships, serial monogamy can help trees maximize their evolutionary fitness, a new study shows.
Sun, 26 Sep 10
Protein found to control the early migration of neurons
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QJ65oC9TykU/100920211418.htm
Long before a baby can flash her first smile, sprout a first tooth or speak a first word, the neurons that will form her central nervous system must take their first, crucial steps. And these steps must be careful to take the right neurons to the right places and avert developmental disasters that could thwart those other baby firsts from ever coming to pass. Now new research promises a deeper understanding of how this essential form of cell migration occurs, finding a gene that works behind the scenes to control a closely related adhesion gene that helps keep young neurons on the right track.
Sun, 26 Sep 10
Robots could improve everyday life at home or work
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1O83gqhTBXY/100924213430.htm
They're mundane, yet daunting tasks: Tidying a messy room. Assembling a bookshelf from a kit of parts. Fetching a hairbrush for someone who can't do it herself.
Sun, 26 Sep 10
Six3 gene essential for retinal development, scientists show
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HGOnpJq9vPY/100920131142.htm
New research adds to evidence that the Six3 gene functions like a doorman in the developing brain and visual system, safeguarding the future retina by keeping the region where the eye is forming free of a signaling protein capable of disrupting the process.
Sun, 26 Sep 10
In cyber bullying, depression hits victims hardest
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5HZi01FOOu4/100925115115.htm
Young victims of electronic or cyber bullying — which occurs online or by cell phone — are more likely to suffer from depression than their tormentors are, a new study finds. “Kids may be reluctant to tell their parents in case they lose their computer or cell phone privileges,” one of the researchers said.
Sun, 26 Sep 10
Dust models paint alien's view of the solar system
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-QgZ_QQx5to/100923111528.htm
New supercomputer simulations tracking the interactions of thousands of dust grains show what the solar system might look like to alien astronomers searching for planets. The models also provide a glimpse of how this view might have changed as our planetary system matured.
Sun, 26 Sep 10
Key molecule for keeping other oral microorganisms in check uncovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/a-Dwh8kqVDc/100924095826.htm
A research team has uncovered a key to arresting the growth of thrush -- a type of oral yeast infection that sickens patients with compromised immune systems, diabetes and newborns as well as healthy individuals, who may contract the disease following antibiotic treatment of an illness.
Sun, 26 Sep 10
Withering well can improve fertility
http://feeds.sciencedaily.com/~r/sciencedaily/~3/n9O-DoDr2X0/100924084210.htm
Contrary to a thousand face cream ads, the secret of fertility might not be eternal youth. Research from Spain has shown that the withering action of flowers may have evolved to protect their seeds.
Sun, 26 Sep 10
Sensor and insulin pump results in better blood-sugar control in all age groups with diabetes, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/g1Rn94FcLqs/100629101415.htm
Adding a continuous blood sugar level sensor to an insulin pump helps patients with type 1 diabetes achieve better blood sugar control compared to the common standard of care, multiple daily insulin injections, a new study concludes.
Sun, 26 Sep 10
Training the trainers: how to minimize stress when horses are first ridden
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Zv_F1XXN2Xs/100921084921.htm
Man has profited enormously from his ability to domesticate animals. Animals need training to perform particular tasks but until recently the effects of training on the animals concerned had hardly been considered. Researchers now presents a study of the stress caused to horses by being ridden for the first time.
Sun, 26 Sep 10
Increasing taxes on alcoholic beverages reduces disease, injury, crime and death rates, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/F0fFgo_jYV4/100923162401.htm
Increasing the costs to consumers of beer, wine and hard liquor significantly reduces the rates of a wide range of alcohol-related deaths, diseases, injuries and other problems, according to a new study.
Sun, 26 Sep 10
Newly created material resembles cilia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/plsmy7R4A0I/100923162406.htm
Scientists recently imitated Mother Nature by developing, for the first time, a new, skinny-molecule-based material that resembles cilia, the tiny, hair-like structures through which organisms derive smell, vision, hearing and fluid flow.
Sun, 26 Sep 10
Kids and diabetes risk: Do chromosomes hold new clues?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QyzfwxU-Amg/100920111321.htm
Children who have a high risk of developing Type 2 diabetes might be identified earlier by way of telltale biomarkers now being sought in new studies.
Sun, 26 Sep 10
Making bees less busy: Social environment changes internal clocks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ygwCaQAMkYk/100914171319.htm
Honey bees removed from their usual roles in the hive quickly and drastically changed their biological rhythms, according to a new study. The changes were evident in both the bees' behavior and in their internal clocks. These findings indicate that social environment has a significant effect on the physiology and behavior of animals.
Sun, 26 Sep 10
Use of sunless tanning products -- common in teens -- may encourage sun safety in women
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Rof3dLnwXO4/100920172636.htm
About one in ten US adolescents uses sunless tanning products, and an intervention promoting these products as an alternative to regular tanning may reduce sunbathing and sunburns among adult women, according to two new reports.
Sun, 26 Sep 10
Irish lizards threatened by agriculture
http://feeds.sciencedaily.com/~r/sciencedaily/~3/k-XTmpf1OXE/100826083807.htm
A new ecological network is urgently needed in Northern Ireland to ensure the continued survival of its precious lizard population, according to researchers. Lizards are found in coastal areas, heath and boglands around Northern Ireland, but a new study has found their natural habitats may have been replaced through agricultural intensification.
Sun, 26 Sep 10
People are cautious in asking help from their community, online gift exchange study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TCEHBPGSYCg/100924084606.htm
People are cautious in exchanging favors and items with other people in their community. Researchers, who studied an online gift exchange service, say that many people buy services because it does not occur to them that someone in their community could help them or they are too shy to ask for a favor.
Sun, 26 Sep 10
Taking a new look at old digs: Trampling animals may alter Stone Age sites
http://feeds.sciencedaily.com/~r/sciencedaily/~3/y-0qkMcERTE/100923162408.htm
Stone Age tools discovered embedded in the ground could mislead archaeologists about a Prehistoric site's age. A new study on animal trampling found that water buffalo and goats significantly disturbed stone tools scattered on watery ground, says archaeologists. The animals pushed the tools as much as 21 centimeters deeper than originally positioned -- potentially altering a site's interpretation thousands of years, and suggesting archaeologists should reanalyze some previous discoveries.
Sun, 26 Sep 10
Cell division typically associated with cancer may also protect the liver from injury
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zfjyiVVumV8/100922132004.htm
Researchers have found that the liver, which is known to have a tremendous capacity for regeneration, also has an amazing degree of diversity. A better understanding of this process may reveal why some individuals are more susceptible to different forms of liver injury than others, which could lead to new therapies for the treatment of liver disease.
Sun, 26 Sep 10
How do you make the perfect sled dog?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/htUSWBNH2hU/100721194758.htm
Over the last few hundred years, Alaskan sled dogs have been bred to haul cargo over Arctic terrain and, more recently, for racing. Now, researchers have identified the contributions different breeds have made to the speed, endurance and work ethic of Alaskan sled dogs.
Sun, 26 Sep 10
Postoperative high blood sugar appears to be associated with surgical site infection
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ltvk7I4HS0Y/100920172634.htm
High blood glucose levels after surgery may be an important risk factor for infection at the surgical site in patients having general surgery, according to a new study.
Sun, 26 Sep 10
New 'light switch' chloride binder developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RvwM8DQVRpg/100830094937.htm
Chemists have designed a molecule that binds chloride ions -- but can be conveniently compelled to release the ions in the presence of ultraviolet light.
Sun, 26 Sep 10
Preserving nerve cells in motor neuron disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PdOlbZlzt6Q/100920123542.htm
A team of researchers has identified a way to prevent symptom onset, weight loss and paralysis, and extend survival in a mouse model of amyotrophic lateral sclerosis (ALS, also known as Lou Gehrig's disease), providing a new avenue of research for the development of therapeutics for ALS and other motor neuron diseases.
Sun, 26 Sep 10
Taking the pulse of coral reefs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vfm23hHMqyk/100920111313.htm
Healthy reefs with more corals and fish generate predictably greater levels of noise, according to researchers working in Panama. This has important implications for understanding the behavior of young fish, and provides an exciting new approach for monitoring environmental health by listening to reefs.
Sun, 26 Sep 10
Physical limitations can take a significant toll in breast cancer survivors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/spq9-Hcl-7I/100922171558.htm
Basic physical limitations following breast cancer treatment can have far-reaching consequences that substantially affect how long a patient lives, according to researchers.
Sun, 26 Sep 10
Sensor important to understanding root, seedling development
http://feeds.sciencedaily.com/~r/sciencedaily/~3/x_UM7yLwWJI/100823162326.htm
A biosensor utilizing black platinum and carbon nanotubes will help give scientists a better understanding of how the plant hormone auxin regulates root growth and seedling establishment.
Sun, 26 Sep 10
Start of school can worsen bedwetting in children
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zPxVEKvpcUQ/100925120432.htm
Bedwetting perennially drives parents to the pediatric urology clinics, but September -- and the start of the school year -- always brings a predictable uptick in visits, according to pediatric urologists.
Sun, 26 Sep 10
Psychologist shows why we 'choke' and how to avoid it
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fA-n30WBCLs/100925120110.htm
A star golfer misses a critical putt; a brilliant student fails to ace a test; a savvy salesperson blows a key presentation. Each of these people has suffered the same bump in mental processing: They have just choked under pressure.
Sun, 26 Sep 10
Aboard Ballard's expedition exploring Mediterranean seafloor
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gTkG30UAuAo/100925115709.htm
Underwater landslides, deep-sea corals, ancient archaeological sites -- these are just a few of the cool phenomena that graduate students may get to see firsthand in the Mediterranean Sea aboard an expedition led by famed explorer Robert Ballard.
Sun, 26 Sep 10
Genetically engineered salmon safe to eat, but a threat to wild stocks, expert says
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8S4mw4K2yxw/100925105209.htm
An expert comments on potential FDA approval of the first genetically engineered animal for use as food.
Sat, 25 Sep 10
Ancient Egypt's pyramids: Norwegian researcher unlocks construction secrets
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dQrDKQTt3rI/100924084615.htm
Scientists from around the world have tried to understand how the Egyptians erected their giant pyramids. Now, an architect and researcher from Norway says he has the answer to this ancient, unsolved puzzle.
Sat, 25 Sep 10
Researchers create first molecule-blocks key component of cancer genes' on-off switch
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BECrzvMt0ww/100924134953.htm
In the quest to arrest the growth and spread of tumors, there have been many attempts to get cancer genes to ignore their internal instruction manual. In a new study, a team of scientists has created the first molecule able to prevent cancer genes from "hearing" those instructions, stifling the cancer process at its root.
Sat, 25 Sep 10
New map offers a global view of health-sapping air pollution
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gtFwZlFEMxU/100923104142.htm
In many developing countries, the absence of surface-based air pollution sensors makes it difficult, and in some cases impossible, to get even a rough estimate of the abundance of a subcategory of airborne particles that epidemiologists suspect contributes to millions of premature deaths each year.
Sat, 25 Sep 10
New findings on multiple sclerosis: Immune cells also attack neurons directly
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9EwMQEvvLAw/100923125113.htm
Researchers in Germany have gained new insight into how the immune system causes damage associated with multiple sclerosis, an incurable neuroinflammatory disorder. Using imaging tools which enable investigation of processes in living organisms, the scientists show a direct interaction between immune cells and neurons which plays a significant role in neuronal injury.
Sat, 25 Sep 10
A biological solution to animal pandemics
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YpYFh5IDgsw/100924102951.htm
Using all-natural materials -- flax, hemp, jute and natural resin -- researchers in Poland have developed a new absorbent matting ideal for providing a disinfectant barrier for use in animal housing and other food production sites, both at times of outbreak of contagious disease and for routine hygiene. The matting is cheaper than the synthetic alternatives, both initially and because it is fully biodegradable so does not need special disposal.
Sat, 25 Sep 10
Psychological pain of Holocaust still haunts survivors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qbUuVpcCiBU/100920123912.htm
Holocaust survivors show remarkable resilience in their day-to-day lives, but they still manifest the pain of their traumatic past in the form of various psychiatric symptoms, according to an analysis of 44 years of global psychological research.
Sat, 25 Sep 10
Mimicking nature, water-based 'artificial leaf' produces electricity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ixuom-e3t_8/100924121218.htm
Scientists have shown that water-gel-based solar devices -- "artificial leaves" -- can act like solar cells to produce electricity. The findings prove the concept for making solar cells that more closely mimic nature. They also have the potential to be less expensive and more environmentally friendly than the current standard-bearer: silicon-based solar cells.
Sat, 25 Sep 10
Botulinum toxin may offer temporary drooling relief in children with neurological disorders
http://feeds.sciencedaily.com/~r/sciencedaily/~3/w3HvpllRxwA/100920172638.htm
Botulinum toxin treatment appears to offer a temporary, short-term solution to relieve drooling in children diagnosed with certain neurological disorders, according to a new study.
Sat, 25 Sep 10
Stress can control our genes, researchers find
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Zj3b-PdLrAU/100924122533.htm
Researchers in Denmark have shown that stress-factors can control our genes. Exposing human cells to a stress-activating compound turned on genes that are normally silenced. Protective complexes that prevents our genes from being read and translated into protein, where lost when the cells experienced stress. The consequence is that genes that should be turned off are now active and this may disturb cellular development, identity and growth.
Sat, 25 Sep 10
Cancer researchers discover new signaling pathway that controls cell development and cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CyoUGHYSt-U/100923125115.htm
Researchers have discovered a new cell signaling pathway that controls cell growth and development, a pathway that, when defective, helps promote the formation of several major forms of human cancer, including lymphoma and leukemia.
Sat, 25 Sep 10
Biometric ID technologies 'inherently fallible,' new report finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JK_TDS9cazY/100924121221.htm
Biometric systems -- designed to automatically recognize individuals based on biological and behavioral traits such as fingerprints, palm prints, or voice or face recognition -- are "inherently fallible," says a new report, and no single trait has been identified that is stable and distinctive across all groups.
Sat, 25 Sep 10
Can't focus? Maybe it's the wrong time of month, finds estrogen study on attention and learning
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TXQd_-dTf6c/100924102955.htm
Feeling a little sluggish and having trouble concentrating? Hormones might be to blame according to new research. The study shows that high estrogen levels are associated with an inability to pay attention and learn -- the first such paper to report how this impediment can be due to a direct effect of the hormone on mature brain structures.
Sat, 25 Sep 10
'Coreshine' sheds light on the birth of stars: Astronomers discover a new phenomenon in molecular clouds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Vgm8BeeiVio/100924084609.htm
Science is literally in the dark when it comes to the birth of stars, which occurs deep inside clouds of gas and dust. These clouds are completely opaque to ordinary light. Now, a group of astronomers has discovered a new astronomical phenomenon that appears to be common in such clouds, and promises a new window onto the earliest phases of star formation. The phenomenon -- infra red light that is scattered by unexpectedly large grains of dust, which the astronomers have termed "coreshine" -- probes the dense cores where stars are born.
Sat, 25 Sep 10
Phantom limbs more common than previously thought
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jZbamNay2iA/100924095822.htm
A study of post-stroke patients reveals that the phantom-limb phenomenon may not be a rare event.
Sat, 25 Sep 10
Arctic soil study turns up surprising results
http://feeds.sciencedaily.com/~r/sciencedaily/~3/msYS7Jfrzq4/100923125211.htm
Across the globe, the diversity of plant and animal species generally increases from the North and South Poles towards the Equator but surprisingly that rule isn't true for soil bacteria, according to a new study.
Sat, 25 Sep 10
Bioreactor could improve treatment for children with 'water on the brain'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/P6hs8WUr_nI/100924095829.htm
A recent study could help find ways to improve shunt systems used to treat the neurological disorder hydrocephalus, or "water on the brain," the leading cause of brain surgery for children in the United States. Researchers studied the shunt systems under a variety of conditions by creating a bioreactor that mimics the environment inside patients.
Sat, 25 Sep 10
How heating our homes could help reduce climate change
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HXof716MUyc/100924095819.htm
A radical new heating system where homes would be heated by district centers rather than in individual households could dramatically cut greenhouse gas emissions.
Sat, 25 Sep 10
Video gaming prepares brain for bigger tasks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/e9ahhJy5Gps/100924095824.htm
Playing video games for hours on end may prepare your child to become a laparoscopic surgeon one day, a new study has shown. Reorganization of the brain's cortical network in young men with significant experience playing video games gives them an advantage not only in playing the games but also in performing other tasks requiring visuomotor skills.
Sat, 25 Sep 10
Pair of aluminum atomic clocks reveal Einstein's relativity at a personal scale
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QX6u0OsXs1c/100923142436.htm
Scientists have known for decades that time passes faster at higher elevations, and more slowly when you move faster, curious aspects of Einstein's theories of relativity. Physicists have now used a pair of the world's best clocks to conduct new "time dilation" experiments to measure these effects at heights and speeds on personal, comprehensible scales.
Sat, 25 Sep 10
New gene associated with increased risk of Alzheimer's disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pv7WFk2kMnQ/100923184449.htm
Researchers have identified a gene that appears to increase a person's risk of developing late-onset Alzheimer disease, the most common type of the disease. Abbreviated MTHFD1L, a gene on chromosome six, was identified in a genome-wide association study.
Sat, 25 Sep 10
New nanomesh material created: Silicon-based film may lead to efficient thermoelectric devices
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Pt7eM8h7m5I/100923142452.htm
Computers, light bulbs and even people generate heat -- energy that ends up being wasted. Thermoelectric devices, which convert heat to electricity and vice versa, harness that energy. But they're not efficient enough for widespread commercial use or are made from expensive or environmentally harmful rare materials. Researchers have just developed a new type of material -- a nanomesh, composed of a thin film with a grid-like arrangement of tiny holes -- that could lead to efficient thermoelectric devices.
Sat, 25 Sep 10
Molecular 'playbook' for halting heart failure risk factor uncovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nTwUEbOxLJM/100923142446.htm
Scientists discovered a potential molecular playbook for blocking cardiac hypertrophy, the unwanted enlargement of the heart and a well-known precursor of heart failure. Researchers uncovered a specific molecular chain of events that leads to the inhibition of this widespread risk factor.
Sat, 25 Sep 10
Robotic arm's big flaw: Patients in wheelchairs say it's 'too easy'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AoJpJBDLTLo/100923184453.htm
Researchers thought the ease of the using a robotic arm's automatic mode would be a huge hit. But they were wrong -- many participants in a pilot study didn't like it because it was "too easy."
Sat, 25 Sep 10
Vitamin C rapidly improves emotional state of acutely hospitalized patients, study suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MAxJbzdPQWE/100923125123.htm
Treatment with vitamin C rapidly improves the emotional state of acutely hospitalized patients, according to a new study.
Sat, 25 Sep 10
Acute pain is eased with the touch of a hand, study shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5ZNzfwYx7Yg/100923125111.htm
There may be a very good reason that people naturally clutch their hand after receiving an injury. A new report shows that self-touch offers significant relief for acute pain under experimental conditions. The researchers suggest that the relief comes from a change in the brain's representation of the rest of the body.
Sat, 25 Sep 10
Microbiologists find source of fungus’s damaging growth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4jcfZAz2V3g/100922171610.htm
Candida albicans, a fungus that kills more than 10,000 people with weakened immune systems each year, grows more dangerous as it forms and extends long strands of cells called hyphal filaments. In a new study, microbiologists describe a key factor involved in this damaging growth.
Sat, 25 Sep 10
Less expensive low-temperature catalyst for hydrogen purification discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/x4oYr9w-9Us/100923142440.htm
Engineering researchers have demonstrated the low-temperature efficacy of an atomically dispersed platinum catalyst, which could be suitable for on-board hydrogen production in fuel-cell-powered vehicles of the future.
Sat, 25 Sep 10
Stress hormone impacts on alcohol recovery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fB60WTy3D_4/100923104134.htm
Scientists have found that high levels of a stress hormone in recovering alcoholics could increase the risk of relapse.
Sat, 25 Sep 10
Insight into the impacts of too much communication
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iERpYE1DZdc/100923142448.htm
Individuals within a networked system coordinate their activities by communicating to each other information such as their position, speed, or intention. At first glance, it seems that more of this communication will increase the harmony and efficiency of the network. However, scientists have found that this is only true if the communication and its subsequent action are immediate.
Sat, 25 Sep 10
Faster, less-intrusive way found to identify transplant recipients' organ rejection
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OjgAJv6DmAw/100923184447.htm
A simple, inexpensive blood test could soon help doctors halt organ rejection before it impairs transplanted hearts and kidneys.
Sat, 25 Sep 10
Computer simulations of real earthquakes made available to worldwide network
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sSlZYbUeHes/100922171608.htm
A research team has developed the capability to produce realistic movies of earthquakes based on complex computer simulations that can be made available worldwide within hours of a disastrous upheaval.
Sat, 25 Sep 10
Does race plays a factor in accident survival? Black motorcyclists -- even in helmets -- more likely to die in crashes, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YVQQkug0_R4/100923184455.htm
African-American victims of motorcycle crashes were 1.5 times more likely to die from their injuries than similarly injured whites, even though many more of the African-American victims were wearing helmets at the time of injury, according to a new study.
Sat, 25 Sep 10
Magnetic power offers energy-saving alternative
http://feeds.sciencedaily.com/~r/sciencedaily/~3/K2jm3iLZzVU/100923111526.htm
Researchers have designed a new system called the "Magnetic Energy Recovery Switch" that controls electrical flow for lighting, a highly efficient platform that may spark a new era of power savings.
Sat, 25 Sep 10
City living helped humans evolve immunity to tuberculosis and leprosy, new research suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Fhx8Mcr-AHY/100923104140.htm
New research has found that a genetic variant which reduces the chance of contracting diseases such as tuberculosis and leprosy is more prevalent in populations with long histories of urban living.
Sat, 25 Sep 10
Drug against AIDS could be effective against herpesvirus
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IEqbtH1JDKw/100923081859.htm
Scientists have shown that raltegravir, the drug approved in 2007 for the treatment of AIDS that is sold by Merck under the name Isentress, cancels the function of an essential protein for the replication of one kind of herpes virus. This study is the first step towards the development of a drug against the entire herpesvirus family.
Sat, 25 Sep 10
Successful sludge-to-power research developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iscY9l2EyPM/100923142454.htm
An experiment to transform wastewater sludge to electrical power, dwarfed by the million-gallon tanks, pipes and pumps at the Truckee Meadows Water Reclamation Facility, has successfully demonstrated a continuous feed low-cost system to dry sludge for conversion to fuel, which could ultimately supply the plant's electrical power on-site.
Sat, 25 Sep 10
Shorter biological marker length in aplastic anemia patients linked to higher relapse, death rates
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SyZUdn6jJG0/100921163703.htm
Among patients receiving immunosuppressive therapy for severe aplastic anemia (a condition in which the bone marrow is unable to produce blood cells), the length of telomeres (chromosome markers of biological aging) was not related to the response to treatment but was associated with a higher rate of relapse (return to low blood cell counts) and lower overall survival, according to a new study.
Sat, 25 Sep 10
Fuel treatments reduce wildfire severity, tree mortality in Washington forests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7YWDZ4O3-hU/100825174118.htm
Scientists have found that fuel treatments -- even of only a few acres -- can reduce fire severity and protect older trees desirable for their timber, wildlife, and carbon-storage value.
Sat, 25 Sep 10
Psychotropic medication and youth in foster care report
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GQsz91wK8dc/100923104136.htm
A landmark report from a multi-state study calls for a national approach and resources for psychotropic medication oversight for youth in foster care.
Sat, 25 Sep 10
Cassini makes first dive inside Saturn’s radio aurora
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MaDNqnF9y2w/100924084612.htm
The Cassini spacecraft has made the first observations from within the radio aurora of another planet than Earth. The measurements, which were taken when the spacecraft flew through an active auroral region in 2008, show some similarities and some contrasts between the radio auroral emissions generated at Saturn and those at Earth.
Sat, 25 Sep 10
Moving closer to outdoor recreation not a recipe for being more physically active
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KIXKqGYVMek/100924134950.htm
A new study looking at the relationship between body mass index, or BMI, and neighborhood walkability, socioeconomic status, reasons for choosing their neighborhood and how physically active they were, fruit and vegetable intake and demographic information such as age, gender, job status and education, found those who chose to move to be closer to outdoor recreation weren't necessarily more active.
Sat, 25 Sep 10
Abortion does not cause depression or low self-esteem in adolescents, national U.S. study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MMKK-uMB7s8/100924122537.htm
A new study has determined that teenagers who have abortions are no more likely to become depressed or have low self-esteem than their peers whose pregnancies do not end in abortion.
Sat, 25 Sep 10
Scientists release first cultivated ohelo berry for Hawaii
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8WI24R4rtCM/100924122535.htm
The first cultivar of ohelo berry, a popular native Hawaiian fruit, has been released by agricultural scientists.
Sat, 25 Sep 10
Disparities in heart attack treatment may begin in the emergency room
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CaBuHYBvUHs/100924102953.htm
The well-documented disparities in cardiac care may begin almost as soon as patients arrive at hospital emergency rooms. In a new study, researchers report that African-American and Hispanic patients assessed for chest pain were less likely than white patients to be categorized as requiring immediate care, despite a lack of significant differences in symptoms.
Sat, 25 Sep 10
UK's shipping emissions six times higher than expected, says new report
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ej_YIn7k9Ms/100924095817.htm
Carbon dioxide emissions produced by UK shipping could be up to six times higher than currently calculated, according to new research.
Fri, 24 Sep 10
Groundwater depletion rate accelerating worldwide
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8U-t_we-F6I/100923142503.htm
In recent decades, the rate at which humans worldwide are pumping dry the vast underground stores of water that billions depend on has more than doubled, say scientists who have conducted an unusual, global assessment of groundwater use.
Fri, 24 Sep 10
Non-stick coating of a protein found in semen reduces HIV infection
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CE6dQBy3AYU/100923142444.htm
A non-stick coating for a substance found in semen dramatically lowers the rate of infection of immune cells by HIV a new study has found. The new material is a potential ingredient for microbicides designed to reduce transmission of HIV, scientists report.
Fri, 24 Sep 10
Scientists uncover process enabling toxoplasmosis parasite to survive homelessness
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1eU_U6LBkx4/100920172740.htm
The parasite responsible for toxoplasmosis requires a stress response system that helps it survive the move to infect new cells, scientists have reported -- a discovery that could lead to new treatments to control the disease.
Fri, 24 Sep 10
Getting off tract: Polyglutamine disease involves other regions of protein
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nRHW0vKhrxs/100922121941.htm
Many genes code for proteins that have a "polyglutamine tract," several glutamine amino acid residues in a row. Nine inherited neurodegenerative diseases, including Huntington's disease and spinocerebellar ataxia type 1 (SCA1), are associated with mutations that cause abnormally long polyglutamine tracts. One theory suggests that accumulation of proteins with extra glutamines damages and kills neurons. However, there is evidence that glutamine tract expansion alone is not sufficient to cause disease.
Fri, 24 Sep 10
New light on nonlinearity: Peregrine’s soliton observed at last
http://feeds.sciencedaily.com/~r/sciencedaily/~3/P_NhKZ5rVYg/100920094802.htm
Despite its central place as a defining object of nonlinear science for over 25 years, the unique characteristics of the Peregrine soliton have never been directly observed in a continuous physical system -- until now.
Fri, 24 Sep 10
Anger amplifies clinical pain in women with and without fibromyalgia; Sensitizing effect of anger and sadness not limited to fibromyalgia patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/K3NAvxufUI4/100923104138.htm
Researchers who studied the effect of negative emotions on pain perception in women with and without fibromyalgia found that anger and sadness amplified pain equally in both groups.
Fri, 24 Sep 10
Extreme conditions deep in Earth's interior recreated
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PqytYOgcjfE/100923142442.htm
Scientists have recreated the tremendous pressures and high temperatures deep in the Earth to resolve a long-standing puzzle: why some seismic waves travel faster than others through the boundary between the solid mantle and fluid outer core. At the pressure near the core-mantle boundary -- more than a million times atmospheric pressure -- perovskite's crystals are deformed in just the right way to explain velocity differences of polarized seismic waves.
Fri, 24 Sep 10
Manganese in drinking water: Study suggests adverse effects on children's intellectual abilities
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TumIPJbQCqM/100920074013.htm
A team of researchers recently completed a study showing that children exposed to high concentrations of manganese in drinking water performed worse on tests of intellectual functioning than children with lower exposures.
Fri, 24 Sep 10
New technique uncovers hidden insecticide resistance in mosquitoes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4LxQKPUVCIM/100922124544.htm
A new technique is improving the detection and monitoring of insecticide resistance in field populations of an important malaria-carrying mosquito.
Fri, 24 Sep 10
Stress resilience returns with feeling for rhythm
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AsVsf-xaqXc/100831073617.htm
If your body releases cortisol with fixed regularity then you can cope with stress better, according to new Dutch research into the rhythm of corticosterone production in rats. This rat hormone is comparable to the human stress hormone cortisol. Rats deal considerably less well with stress if the pattern of corticosterone release changes. An irregular release pattern is a characteristic of chronic stress and stress-related diseases. It might therefore be possible to treat these by restoring the rhythm.
Fri, 24 Sep 10
Improved tool developed for cycling fitness
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1_SU79rZQtM/100830152540.htm
For competitive bicyclists with goals -- whether competing in the Tour de France or aiming for the podium at a local race -- faster cycling comes from training regimens based on various zones of exercise intensity. New research from exercise scientists has found that effective training regimens, which generally are created after expensive, time-consuming laboratory tests, can be developed from a relatively simple, do-it-yourself test.
Fri, 24 Sep 10
Current decisions shape your future preferences
http://feeds.sciencedaily.com/~r/sciencedaily/~3/w-r6bPokjso/100923125125.htm
Psychologists have known for a long time that after you make a choice, you adjust your opinion to think better of the thing you chose. Now a new study has found that this is true even if you don't know the options that you're choosing between.
Fri, 24 Sep 10
Gulf oil spill's vastness confirmed: Largest marine oil accident ever
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4deXVeujiWQ/100923142438.htm
In the first independent paper on the volume of the Gulf oil spill, scientists have affirmed heightened estimates of what is now seen as the largest marine oil accident ever. Using a new technique to analyze underwater video of the well riser, they say it leaked 56,000-68,000 barrels daily -- maybe more -- until it was capped. Their estimate of total oil escaped into the ocean is 4.4 million barrels -- close to the most recent consensus of government advisers.
Fri, 24 Sep 10
Smoking during pregnancy may harm the child’s motor control and coordination
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Y-dMEm68Xlw/100922081758.htm
Women who smoke during pregnancy run the risk of adversely affecting their children's coordination and physical control according to a new study. Boys' abilities may be affected to a greater extent than those of girls, according to the research.
Fri, 24 Sep 10
Secret of oysters' ability to stick together cracked open
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pQ0u3SE74QU/100920142602.htm
A research team has uncovered the chemical components of the adhesive produced by oysters, providing information that could be useful for fisheries, boating and medicine. A better understanding of oysters' ability to stick together to form complex reefs would help those trying to boost the dwindling oyster population, aid in the creation of materials to keep boat hulls clean without harming the environment, and bring researchers one step closer to creating wet-setting adhesives.
Fri, 24 Sep 10
Normal function of protein, not its build up inside cells, linked to death of neurons
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8sRFDSlbDm4/100922124350.htm
A new study links the muscle weakness and other symptoms of a rare neurodegenerative disease to a misstep in functioning of a normal protein, rather than its build-up inside cells.
Fri, 24 Sep 10
Ingredient in soap points toward new drugs for infection that affects two billion
http://feeds.sciencedaily.com/~r/sciencedaily/~3/e6GFpQhrZPg/100922121953.htm
The antibacterial ingredient in some soaps, toothpastes, odor-fighting socks, and even computer keyboards is pointing scientists toward a long-sought new treatment for a parasitic disease that affects almost two billion people.
Fri, 24 Sep 10
Talking while walking puts Parkinson's patients at risk for falls
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EyR86BCbiko/100922121951.htm
Walking and talking at the same time can put older adults, especially those with Parkinson's disease, at risk for injurious falls.
Fri, 24 Sep 10
New target for Alzheimer's disease identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sEyTKsLywt4/100921171347.htm
Neurological researchers have found a new therapeutic target that can potentially lead to a new way to prevent the progression of Alzheimer's disease. The target called neutral sphingomyelinase (N-SMase) is a protein that when activated, can cause a chain of reactions in the cell leading to neuronal death and memory loss.
Fri, 24 Sep 10
Mercury’s comet-like appearance spotted by satellites looking at the Sun
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qRSiiebqMcc/100922081748.htm
Scientists report that NASA satellites designed to view the escaping atmosphere of the Sun have also recorded evidence of escaping gas from the planet Mercury. The STEREO mission has two satellites placed in the same orbit around the Sun that the Earth has, but at locations ahead and behind it. This configuration offers multi-directional views of the electrons and ions that make up the escaping solar wind. On occasion, the planet Mercury appears in the field of view of one or both satellites. In addition to its appearance as a bright disk of reflected sunlight, a "tail" of emission can be seen in some of the images.
Fri, 24 Sep 10
Putting on the pounds after weight loss? Hit the gym to maintain health gains
http://feeds.sciencedaily.com/~r/sciencedaily/~3/y34uhiE6hdU/100922124344.htm
Although obesity is a major risk factor for disease, much of the threat may be associated with the metabolic (or cardiometabolic) syndrome, a cluster of risk factors related to diabetes and heart disease. Losing weight can improve health and reduce many of these risk factors. However, many people struggle to keep the weight off long-term. Now, researchers have found that people who perform resistance training while regaining weight can help maintain strides in reducing their risks for chronic disease.
Fri, 24 Sep 10
Smartphone app for genes on Earth is tool for scientists and entertaining for all
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Q7_m3Egvp74/100920173010.htm
The scientists who put an innovative tree of life online last year now have made that same resource available -- free -- for smartphones. The new "TimeTree" application lets anyone with an Apple iPhone harness a vast Internet storehouse of data about the diversity of life, from bacteria to humans. The new iPhone app can be fun for people who want to learn how long ago their cat and dog began evolving down different evolutionary paths, and it also is a useful scientific tool.
Fri, 24 Sep 10
Less pain for learning gain: Research offers a strategy to increase learning with less effort
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KZ7DOcf2ZLg/100922171604.htm
Scientists have long agreed that perceptual skills related to language learning and reading can be enhanced through practice. As a result, therapies for poor readers and language learning impaired children often are long and tedious. In what may be metaplasticity's first behavioral demonstration, this study finds a way to make training easier but equally effective. It also could lead to easier training techniques for musicians, foreign language learners and others.
Fri, 24 Sep 10
Ecologists find new clues on climate change in 150-year-old pressed plants
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2TpVyWIE-Lc/100922081631.htm
Plants picked up to 150 years ago by Victorian collectors and held by the million in herbarium collections across the world could become a powerful -- and much needed -- new source of data for studying climate change, according to new research.
Thu, 23 Sep 10
Ocean cooling contributed to mid-20th century global warming hiatus
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zdgdBSP24JM/100922132002.htm
The hiatus of global warming in the Northern Hemisphere during the mid-20th century may have been due to an abrupt cooling event centered over the North Atlantic around 1970, rather than the cooling effects of tropospheric pollution.
Thu, 23 Sep 10
Toward the first nose drops to treat brain cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/v3fryyUO0Wg/100922121949.htm
Scientists are reporting the development and successful initial testing of a new form of methotrexate -- the mainstay anticancer drug -- designed to be given as nose drops rather than injected. It shows promise as a more effective treatment for brain cancer, they say.
Thu, 23 Sep 10
New species of sea slug discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KENphWU2Qr8/100922155108.htm
Sometimes, treasures can be found in your own backyard -- especially if you know what to look for. A researcher was working in the tide pools at Carpinteria Reef in California when he found a new species of nudibranch -- a group of sea slugs noted for their bright colors and delicate forms. Recognizing it as new, he carefully documented the living specimen before preserving it.
Thu, 23 Sep 10
New bioprosthetic-tissue heart valve for severe aortic stenosis shown to save lives, researchers say
http://feeds.sciencedaily.com/~r/sciencedaily/~3/f0INf5NE6hU/100922171606.htm
Implantation of a new bioprosthetic-tissue valve into the hearts of patients who have severe aortic stenosis and are too sick or too old for open-heart surgery has been found to both save lives and improve the quality of those lives, according to a new multicenter study.
Thu, 23 Sep 10
Linking microbial sex and virulence
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-B9ysy4paXA/100908132220.htm
Two opportunistic pathogens that were once thought to be very different have evolved some sexual reproduction and disease-causing habits that are not only similar but also suggest that in the microbial world sex and virulence are closely linked, according to new research.
Thu, 23 Sep 10
Building language skills more critical for boys than girls, research suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/w1P1TKoXvwA/100922102350.htm
Developing language skills appears to be more important for boys than girls in helping them to develop self-control and, ultimately, succeed in school, according to a new study.
Thu, 23 Sep 10
Lightning on Earth and Venus: Similar mechanisms on the two planets
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KiG-Bib_j2U/100922183006.htm
Despite the great differences between the atmospheres of Venus and Earth, scientists have discovered that very similar mechanisms produce lightning on the two planets. The rates of discharge, the intensity and the spatial distribution of lightning are comparable, thus scientists hope to be able to better understand the chemistry, dynamics and evolution of the atmospheres of the two planets.
Thu, 23 Sep 10
Preventing infections in the womb: Discovery may pave way for new approaches
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tW-LbFZfh_k/100922171601.htm
Researchers have established in mice the mechanism that detects and responds to the presence of bacteria in the womb -- a discovery that opens up the possibility of new preventative treatments for diseases like pelvic inflammatory disease and Chlamydia.
Thu, 23 Sep 10
Mice engrafted with human immune cells may provide clues to better prevention and treatment of typhoid fever
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ctr1xZ6WRC8/100922155114.htm
Better treatments and prevention of typhoid fever may emerge from a laboratory model that has just been developed for the disease. The model is based on transplanting human immune stem cells from umbilical cord blood into mice that are susceptible to infections. Because typhoid fever affects only humans, progress in creating effective vaccines and medications has been limited. The "humanized" mouse allows scientists to study innovative approaches against human infections.
Thu, 23 Sep 10
Doctors often overprescribe antibiotics for respiratory infections, Pennsylvania study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dgH80xaWX9U/100922160946.htm
Doctors frequently misuse antibiotics when treating patients hospitalized with respiratory tract infections, according to a new study that tracked patients in two Pennsylvania hospitals.
Thu, 23 Sep 10
Fruit flies help scientists sniff out new insect repellents
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Vg2HTq2RdNA/100922155110.htm
By following the "nose" of fruit flies, scientists are on the trail of new insect repellents that may reduce the spread of infectious disease and damage to agricultural crops. That's because they've learned for the first time how a group of genes used to differentiate smells is turned on and off, opening new possibilities for insect control.
Thu, 23 Sep 10
Just two drinks slow reactions in older people, research shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7r7e3vf3lvo/100922191728.htm
Blood alcohol levels below the current legal limit for driving have a significant negative effect on a person's dexterity. Researchers found that just two single vodka and orange drinks were enough to make senior volunteers struggle at an obstacle avoidance test while walking.
Thu, 23 Sep 10
Genomic 'haircut' makes world's tiniest genome even smaller
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gsfNfwBZq-s/100921101335.htm
The world's tiniest nuclear genome appears to have "snipped off the ends" of its chromosomes and evolved into a lean, mean, genome machine that infects human cells, according to new research.
Thu, 23 Sep 10
Acetylation may contribute to dementia and Alzheimer's disease; May lead to new treatments
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tRKtlqtq-FE/100922121939.htm
A new study uncovers a protein modification that may contribute to the formation of neuron-damaging neurofibrillary tangles in the human brain. The research may lead to new strategies for treatment of neurodegenerative diseases that result from pathological aggregation of tau protein.
Thu, 23 Sep 10
Searching in the microbial world for efficient ways to produce biofuel
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wvwHDFW4TiY/100922102348.htm
With the help of genetic materials from a cow's rumen, scientists are developing new ways to break down plant fibers for conversion into biofuel.
Thu, 23 Sep 10
Gum disease found to be significant public health concern
http://feeds.sciencedaily.com/~r/sciencedaily/~3/68WMtlWR3jU/100922155126.htm
The prevalence of periodontal disease in the United States may be significantly higher than originally estimated. New research suggests that the prevalence of periodontal disease may have been underestimated by as much as 50 percent. The implication is that more American adults may suffer from moderate to severe gum disease than previously thought.
Thu, 23 Sep 10
Progress toward terabit-rate high-density recording
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7YpIS9MH0Tk/100921092403.htm
Next-generation high-density storage devices may keep more than 70 times the contents of the entire US Library of Congress on a single disc -- but only if that data can be written quickly enough. Researchers have now demonstrated a way to record onto ferromagnetic films thirty times faster than today's technologies.
Thu, 23 Sep 10
Losing your religion may be unhealthy, research suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_G9xEprE0SQ/100922155120.htm
People who leave strict religious groups are more likely to say their health is worse than members who remain in the group, according to new research.
Thu, 23 Sep 10
Salmonella creates environment in human intestines to foster its own growth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OvviZI_dWD4/100922131955.htm
The bacteria Salmonella enterica -- a common cause of food poisoning -- exploits immune response in the human gut to enhance its own reproductive and transmission success, according to new research. The strategy gives Salmonella a growth advantage over the beneficial bacteria that are normally present in the intestinal tract and promotes the severe diarrhea that spreads the bacteria to other people.
Thu, 23 Sep 10
Largest genetic study of asthma points towards better treatments
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-hg6gmpJ_ak/100922171457.htm
An international study looking at DNA from over 26,000 people has identified several genetic variants that substantially increase susceptibility to asthma in the population. The findings will help scientists to focus their efforts to develop better therapies for the illness.
Thu, 23 Sep 10
New computer-tomography method visualizes nano-structure of bones
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4X0czg2ucIo/100922132000.htm
A novel nano-tomography method opens the door to computed tomography examinations of minute structures at nanometer resolutions. Three-dimensional detailed imaging of fragile bone structures becomes possible.
Thu, 23 Sep 10
Genetic factor in osteoporosis discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NdMgipFB2Vk/100922082333.htm
Spanish researchers have confirmed there is a genetic risk factor for osteoporosis and bone fractures. Although more studies are still needed, these findings will make it possible to take preventive measures.
Thu, 23 Sep 10
A new approach to high-performance catalysts
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jpo8b2ZM99Q/100922124542.htm
Over 80% of all products manufactured today in the chemical and pharmaceutical industries require the use of catalysts. Chemists have now demonstrated a new technique using the enantioselective hydrogenation of alkenes as a model.
Thu, 23 Sep 10
China tops world in catch and consumption of fish
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DaX_pc2DsS4/100922121947.htm
China leads the world in tonnage of fish caught annually as well as the amount of fish consumed, according to new findings. The research ranks the top 20 nations that have the greatest impact on ocean ecosystems through catching or consuming marine wildlife.
Thu, 23 Sep 10
New drug could help stop the spread of disease from coughs, researchers believe
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nTQgRB2hDfA/100922111438.htm
What if there was a drug that could completely eliminate airborne disease transmission that occurs when someone coughs? Researchers in Canada believe they have found a way to achieve this.
Thu, 23 Sep 10
Structure of dangerous bacteria's powerful multidrug resistance pump revealed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5MTIJxu-7Bw/100922131957.htm
Scientists have detailed the structure of a member of the only remaining class of multidrug resistance transporters left to be described. The work has implications for combating dangerous antibiotic resistant strains of bacteria, as well as for developing hardy strains of agricultural crops.
Thu, 23 Sep 10
Experiments decipher key piece of the ‘histone code’ in cell division
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uo1HH6V0qPI/100920211118.htm
Reproduce or perish. That's the bottom line for genes. Because nothing lives forever, reproduction is how life sustains itself, and it happens most fundamentally in the division and replication of the cell, known as mitosis. Now new research has detailed a key role in mitosis for a chemical modification to histone proteins that package lengthy strings of DNA into compact chromosomes. The experiments, recently published in Science, add to an increasingly intricate picture of the precisely timed events that separate new copies of chromosomes to opposite ends of a cell just before the cell divides, one of the most fundamental processes involved in the reproduction of life.
Thu, 23 Sep 10
Genetic patterns may predict osteoarthritis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/V8S2awhcnoU/100921084539.htm
Scientists have announced findings from a large clinical study to evaluate the role played by genetic factors in the worsening of osteoarthritis.
Thu, 23 Sep 10
Ultrashort laser ablation enables novel metal films
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kpimncJU2sI/100921092359.htm
Laser ablation is well known in medical applications like dermatology and dentistry, and for more than a decade it has been used to vaporize materials that are difficult to evaporate for high-tech applications like the deposition of superconductors. Now researchers have studied the properties of femtosecond laser ablation plumes to better understand how to apply them to specialized films.
Thu, 23 Sep 10
Landmark report reveals massive global cost of Alzheimer's: One percent of global GDP -- and growing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/egLApkpqb68/100921084536.htm
A landmark report on the global economic impact of dementia finds that Alzheimer's disease and other dementias are exacting a massive toll on the global economy, with the problem set to accelerate in coming years. The World Alzheimer Report 2010 provides the most current and comprehensive global picture of the economic and social costs of the illness, revealing that the worldwide costs of dementia will exceed 1 percent of global GDP in 2010, at $604 billion.
Thu, 23 Sep 10
Breaking waves in the Lagoon Nebula
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7yfWhfdzMFU/100922091451.htm
A spectacular new NASA/ESA Hubble Space Telescope image reveals the heart of the Lagoon Nebula. Seen as a massive cloud of glowing dust and gas, bombarded by the energetic radiation of new stars, this placid name hides a dramatic reality.
Thu, 23 Sep 10
For sufferers of an early-onset dementia, career choice may determine location of disease in brain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ifZYBIOYr-4/100922124348.htm
In an international study of patients with a devastating type of dementia that often strikes in middle age, researchers have found intriguing evidence that career choice may influence where the disease takes root in the brain.
Thu, 23 Sep 10
New luggage inspection methods identify liquid explosives
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mrxrKhBwTI8/100922082339.htm
Liquid explosives are easy to produce. As a result, terrorists can use the chemicals for attacks -- on aircraft, for instance. In the future, new detection systems at airport security checkpoints will help track down these dangerous substances. Researchers are currently testing equipment.
Thu, 23 Sep 10
Higher dairy calcium intake and increased serum vitamin D are related to greater diet-induced weight loss, Israeli study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GPwFnitsgmE/100921084551.htm
A new study conducted by researchers in Israel reveals that higher dairy calcium intake and increased serum vitamin D are related to greater diet-induced weight loss.
Thu, 23 Sep 10
Working from home and online shopping can increase carbon emissions, UK report claims
http://feeds.sciencedaily.com/~r/sciencedaily/~3/c-iDSrkeV4o/100921085524.htm
Shopping on the Internet or working from home could be increasing carbon emissions rather than helping to reduce them, a new report claims. The research reveals that people who shop online must order more than 25 items otherwise the impact on the environment is likely to be worse than traditional shopping.
Thu, 23 Sep 10
Inner voice plays role in self control
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gySIDsPE7os/100921110956.htm
Talking to yourself might not be a bad thing, especially when it comes to exercising self control.
Thu, 23 Sep 10
Human-powered ornithopter becomes first ever to achieve sustained flight
http://feeds.sciencedaily.com/~r/sciencedaily/~3/41IfSVXDlqc/100922155112.htm
Aviation history was made when the University of Toronto's human-powered aircraft with flapping wings became the first of its kind to fly continuously.
Thu, 23 Sep 10
Complex brain landscape controls speech
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ztsjYltlcQ0/100921171341.htm
Up to now, Broca's region in the brain has been thought to comprise two areas, since it was discovered in 1861, it has been regarded as one of the two regions in the cerebral cortex responsible for language. The conception of the neuroanatomical basis of our speech must be revised in its entirety, new research suggests.
Thu, 23 Sep 10
Researchers crack cuckoo egg mystery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/t3_CutjiRQI/100922102247.htm
Researchers have discovered that cuckoo eggs are internally incubated by the female bird for up to 24 hours before birth, solving for the first time the mystery as to how a cuckoo chick is able to hatch in advance of a host's eggs and brutally evict them.
Thu, 23 Sep 10
Inflammation causes some postsurgical neuropathies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vYulbGcKL-0/100922111432.htm
A new study found that nerve inflammation may cause the pain, numbness and weakness following surgical procedures that is known as post-surgical neuropathy.
Thu, 23 Sep 10
Seagulls harbor antibiotic resistant bacteria
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KG1aIhpHbBw/100920190956.htm
Analysis of seagull droppings has revealed that one in ten carry "superbug" bacteria, resistant to the last-resort antibiotic Vancomycin. Researchers investigated 57 migratory seagull samples recovered from an island off the coast of Portugal.
Thu, 23 Sep 10
Man’s best friend keeps children on the move
http://feeds.sciencedaily.com/~r/sciencedaily/~3/__6AtUD1DbA/100921084919.htm
Children whose families own dogs are more active than those without, according to new research.
Thu, 23 Sep 10
Amazing horned dinosaurs unearthed on 'lost continent'; New discoveries include bizarre beast with 15 horns
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CY4Vo2zMlTc/100922121943.htm
Discovery of two new horned dinosaurs in southern Utah are part of an entirely new assemblage of dinosaurs found in the Grand Staircase-Escalante Monument, and which confirm that dinosaurs living in the area called Laramidia were divided into at least northern and southern provinces.
Thu, 23 Sep 10
Taste genes predict tooth decay
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JjtR3ivaQTI/100922111430.htm
Dental caries is a highly prevalent disease that is disproportionately distributed in the population. Caries occurrence and progression is known to be influenced by a complex interplay of both environmental and genetic factors, with numerous contributing factors having been identified including bacterial flora, dietary habits, fluoride exposure, oral hygiene, salivary flow, salivary composition, and tooth structure. Researchers now hypothesized that genetic variation in taste pathway genes (TAS2R38, TAS1R2, GNAT3) may be associated with dental caries risk and/or protection.
Thu, 23 Sep 10
Titanium foams replace injured bones
http://feeds.sciencedaily.com/~r/sciencedaily/~3/T9J_6iQbK5w/100922082344.htm
Flexible yet rigid like a human bone, and immediately capable of bearing loads: A new kind of implant, made of titanium foam, resembles the inside of a bone in terms of its structural configuration. Not only does this make it less stiff than conventional massive implants. It also promotes ingrowth into surrounding bones.
Thu, 23 Sep 10
Children born by IVF perform above average on standardized tests compared to their peers, study suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/H6GxYqsl0bs/100922111436.htm
Children conceived by in vitro fertilization (IVF) perform at least as well as their peers on academic tests at all ages from grade 3 to 12, according to a new study. Among children born by IVF, the researchers did find a potentially concerning trend toward worse test scores for multiple births -- single babies performed better than twins, who performed better than triplets. However, this trend was not statistically significant and the triplets still did better that the average score of non-IVF children.
Thu, 23 Sep 10
Cocaine and ecstasy detected in waters of the L'Albufera in Valencia, Spain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/O1oG0c-_GB4/100922111434.htm
The water in the canals and irrigation channels in the L'Albufera Natural Park in Valencia contain cocaine, ecstasy and a further six drugs. Researchers have issued a warning about the continued presence of these substances on wildlife and human health.
Thu, 23 Sep 10
Research sheds light on altruism
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Z2I4LsPUM3E/100921144121.htm
Using digital evolution techniques that give scientists the ability to watch evolution in action, researchers have shed new light on what it is that makes species altruistic.
Wed, 22 Sep 10
Parting the waters: Computer modeling applies physics to Red Sea escape route
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1cfIYHK0iVc/100921143930.htm
New research shows the extent to which such sustained winds can dramatically lower water levels. The research suggests that such a "wind setdown" event could have led to a parting of waters similar to the description in the biblical account of the Red Sea.
Wed, 22 Sep 10
Higher than predicted human exposure to the toxic chemical bisphenol A or BPA, new study indicates
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GSI_rdQwSA4/100920173008.htm
Researchers have discovered that women, female monkeys and female mice have major similarities when it comes to how bisphenol A is metabolized, and they have renewed their call for governmental regulation when it comes to the estrogen-like chemical found in many everyday products.
Wed, 22 Sep 10
Earth to have closest encounter with Jupiter until 2022
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GsxpVvSz3zQ/100920190745.htm
Been outside at midnight lately? There's something you really need to see. Jupiter is approaching Earth for the closest encounter between the two planets in more than a decade -- and it is dazzling.
Wed, 22 Sep 10
Targeted therapy triggers complex mechanism of resistance
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6vu6rKNGUmY/100921144129.htm
In order for targeted therapies against cancer to be effective, scientists need to understand upfront what related proteins in a signaling "network" makes a cancer cell resistant to a drug and selectively target them as well, say researchers.
Wed, 22 Sep 10
Silent electric vehicles made safer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uO3zZ0sA1DY/100921084744.htm
A little green van called ELVIN is whizzing around the University of Warwick as part of a major research project aimed at tackling the safety issues linked to the lack of sound from electric vehicles.
Wed, 22 Sep 10
Hormone oxytocin improves social cognition but only in less socially proficient individuals
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pZCmr9VBNh4/100921143926.htm
Researchers have found that the naturally-occurring hormone oxytocin selectively improves social cognitive abilities for less socially proficient individuals, but has little effect on those who are more socially proficient.
Wed, 22 Sep 10
Martian moon Phobos may have formed by catastrophic blast
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FsJdBGng2hw/100920094804.htm
Scientists now have firm indications that the Martian satellite Phobos formed relatively near its current location via re-accretion of material blasted into Mars' orbit by some catastrophic event. Two independent approaches of compositional analyses of thermal infrared spectra, from ESA's Mars Express and NASA's Mars Global Surveyor missions, yield very similar conclusions. The re-accretion scenario is further strengthened by the measurements of Phobos' high porosity from the Mars Radio Science Experiment (MaRS) on board Mars Express.
Wed, 22 Sep 10
Muscle gene may provide new treatments for obesity and diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FTQrJTYiaqE/100920211748.htm
Skeletal muscle enables us to walk, run or play a musical instrument, but it also plays a crucial role in controlling disease. Scientists have now shown how a specific molecule in skeletal muscle regulates energy expenditure, a finding that may lead to new treatments for certain muscle diseases as well as diabetes, obesity and heart disease.
Wed, 22 Sep 10
Nanoparticle shaped like Star of David discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/x0d-AXf9-Yw/100920080451.htm
A new type of nanoparticle resembling the six-pointed Star of David has been discovered by researchers in Israel. The discovery may lead to new ways for sensing of glucose in diagnosing diabetes or provide a catalyst to capture the sun's energy and turn it into clean fuel.
Wed, 22 Sep 10
New pathway regulates immune balance and offers promising drug development target
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UvXKpFij4u4/100920135135.htm
Scientists have identified a new pathway that helps control the immune balance through reciprocal regulation of specialized T lymphocytes, which play very different inflammatory roles.
Wed, 22 Sep 10
Swallowing disc batteries can cause severe injury in children
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Dpjt2SW049g/100920172640.htm
Severe injury to the esophagus can occur after a child swallows a disc battery, according to a new study.
Wed, 22 Sep 10
Too much TV, video and computer can make teens fatter
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aXk5ydNIeo8/100920123552.htm
Too much television, video games and Internet can increase body fat in teens. A five-year study has found teenagers have four different patterns of screen use: increasers, decreasers, consistently high and consistently low users.
Wed, 22 Sep 10
Nano antenna concentrates light
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rL3ewr_4MEA/100920123557.htm
Researchers have made a nanoscale optical antenna that amplifies light a thousand-fold. Getting an accurate measurement of the plasmonic effect is a first.
Wed, 22 Sep 10
Seasonal flu vaccine lowers risk of first heart attack, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tHuUqoDIG0Q/100920123535.htm
The seasonal flu vaccine is associated with a 19 percent reduction in the rate of first heart attack and early vaccination in the fall further increases the benefits, found a study published in CMAJ.
Wed, 22 Sep 10
Marine scientists unveil mysteries of life on undersea mountains
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PI0Eai50Mdk/100920080501.htm
They challenge the mountain ranges of the Alps, the Andes and the Himalayas in size yet surprisingly little is known about seamounts, the vast mountains hidden under the world's oceans. Now in a special issue of Marine Ecology, scientists uncover the mystery of life on these submerged mountain ranges and reveal why these under studied ecosystems are under threat.
Wed, 22 Sep 10
Study models H1N1 flu spread
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WBehwxELtPM/100921101337.htm
As the United States prepares for the upcoming flu season, a group of researchers continues to model how H1N1 may spread.
Wed, 22 Sep 10
Ability to detect malware in cloud-computing systems improved
http://feeds.sciencedaily.com/~r/sciencedaily/~3/teFCMMghDaM/100921101339.htm
Researchers have developed new software that offers significantly enhanced security for cloud-computing systems. The software is much better at detecting viruses or other malware in the "hypervisors" that are critical to cloud computing, and does so without alerting the malware that it is being examined.
Wed, 22 Sep 10
Overheard cell-phone conversations are not only annoying but reduce our attention
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WKBC80a0QNg/100921101344.htm
"Yeah, I'm on my way home." "That's funny." "Uh-huh." "What? No! I thought you were -- " "Oh, OK." Listening to someone talk on a cell phone is very annoying. A new study finds out why: hearing just one side of a conversation is much more distracting than hearing both sides and reduces our attention in other tasks.
Wed, 22 Sep 10
Pollution takes its toll on the heart
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LDQGdbXiB9c/100920123910.htm
The fine particles of pollution that hang in the air can increase the risk for sudden cardiac arrest, according to a new study.
Wed, 22 Sep 10
Compound boosts marijuana-like chemical in the body to relieve pain at injury site
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gwN_go1055o/100920131140.htm
American and Italian researchers have found that a novel drug allows anandamide -- a marijuana-like chemical in the body -- to effectively control pain at the site of an injury.
Wed, 22 Sep 10
Giving aspirin via IV is safe and effective for severe headache, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WSPYwT3nFkY/100920172625.htm
A new study shows that aspirin, given intravenously (IV), may be a safe and effective option for people hospitalized for severe headache or migraine, undergoing medication withdrawal.
Wed, 22 Sep 10
Neanderthals more advanced than previously thought: They innovated, adapted like modern humans, research shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3iLx9rVqiK4/100921171412.htm
For decades scientists believed Neanderthals developed "modern" tools and ornaments solely through contact with Homo sapiens, but new research now shows these sturdy ancients could adapt, innovate and evolve technology on their own.
Wed, 22 Sep 10
Universal, primordial magnetic fields discovered in deep space
http://feeds.sciencedaily.com/~r/sciencedaily/~3/No3H5PSthFg/100921144135.htm
Scientists have discovered evidence of "universal ubiquitous magnetic fields" permeating deep space between galaxies since the time of the Big Bang.
Wed, 22 Sep 10
Child rearing practices of distant ancestors foster morality, compassion in kids
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CGF86i_ZxVQ/100921163709.htm
Three new studies show a relationship between child rearing practices common in foraging hunter-gathering societies (how we humans have spent about 99 percent of our history) and better mental health, greater empathy and conscience development, and higher intelligence in children.
Wed, 22 Sep 10
Brain's impulse control center located
http://feeds.sciencedaily.com/~r/sciencedaily/~3/G5wS3qtqcMM/100921151009.htm
Impulsive behavior can be improved with training and the improvement is marked by specific brain changes, according to a new study.
Wed, 22 Sep 10
'Synthetic lethality' strategy improves molecularly targeted cancer therapy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/G9ged3_KKAc/100921144236.htm
Molecularly targeted therapies can reduce tumors rapidly. However, not all tumors respond to the drugs, and even those that do often develop resistance over time. Looking for a way to combat the problem of resistance, researchers hypothesized that hitting already weakened cancer cells with a second targeted agent could kill them -- but only if it was the right second agent.
Wed, 22 Sep 10
Spare the rod, spoil the child?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/enaSohq2tWo/100921144234.htm
Grabbing a child firmly by the arm, yelling and repeatedly punishing him or her may not be without long-terms risks, according to researchers. They are studying how this harsh parenting can impair the emotional development of a child, possibly leading to anxiety disorders such as social phobia, separation anxiety and panic attacks.
Tue, 21 Sep 10
Geckos inspire new method to print electronics on complex surfaces
http://feeds.sciencedaily.com/~r/sciencedaily/~3/z77w9tQYcyc/100920151804.htm
Geckos are masters at sticking to surfaces of all kinds and easily unsticking themselves. Inspired by these lizards, a team of engineers has developed a reversible adhesion method for printing electronics on a variety of tricky surfaces such as clothes, plastic and leather. The stamp can easily pick up electronic devices from a silicon surface and print them on a curved surface.
Tue, 21 Sep 10
Female fish abandoned by males to raise offspring on their own
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rqiU0HDn750/100920101151.htm
Caring for children can be a tough job, particularly if you are a female cichlid fish, with research showing that male cichlid fish have a propensity to desert their mates, leaving them to then look after the young as single parents.
Tue, 21 Sep 10
Yeast holds clues to Parkinson's disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZvIFSDnGTXk/100908191132.htm
Yeast could be a powerful ally in the discovery of new therapeutic drugs to treat Parkinson's disease. Researchers in Portugal are slowly uncovering the molecular basis of Parkinson's disease by studying the associated human protein in yeast cells.
Tue, 21 Sep 10
Vigilant camera eye: System analyzes data in real time, flags unusual scenes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VEEXPRL5Flo/100920080505.htm
An innovative camera system could in future enhance security in public areas and buildings. Smart Eyes works just like the human eye. The system analyzes the recorded data in real time and then immediately flags up salient features and unusual scenes.
Tue, 21 Sep 10
Hard-wired for chocolate and hybrid cars? How genetics affect consumer choice
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RoO4ZPVlbw0/100920173004.htm
Clues to consumer behavior may be lurking our genes, according to a new study. The authors discovered that people seem to inherit the following tendencies: to choose a compromise option and avoid extremes; select sure gains over gambles; prefer an easy but non-rewarding task over an enjoyable challenging one; look for the best option available; and prefer utilitarian, clearly needed options (like batteries) over more indulgent ones (gourmet chocolate).
Tue, 21 Sep 10
Hot atmosphere of Venus might cool interior of Earth’s sister planet
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iTZSusbxuGQ/100920184226.htm
The heat in the atmosphere of Venus, induced from a strong greenhouse warming, might actually have a cooling effect on the planet's interior. This counter-intuitive theory is based on calculations from a new model presented by astronomers.
Tue, 21 Sep 10
Stress accelerates breast cancer progression in mice, researchers find
http://feeds.sciencedaily.com/~r/sciencedaily/~3/X6Zy_QGlGfU/100916091757.htm
Chronic stress acts as a sort of fertilizer that feeds breast cancer progression, significantly accelerating the spread of disease in animal models, researchers have found.
Tue, 21 Sep 10
US teen hearing loss is much lower than has been widely reported, study shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zgSo3z5E-qE/100920123548.htm
New research from hearing scientists shows that fewer than 20 percent of teenagers in the United States have a hearing loss as a result of exposure to loud sounds, thus offering a different analysis of previously reported data.
Tue, 21 Sep 10
Abnormal body weight related to increased mortality in colon cancer patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8UAIlZQ030w/100909003700.htm
Postmenopausal women diagnosed with colon cancer may be at increased risk of death if they fail to maintain a healthy body weight before cancer diagnosis, according to a new study.
Tue, 21 Sep 10
Image sensors for extreme temperatures
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lU8wbNkT-yE/100920080542.htm
Image sensors which are used as electronic parking aids in cars or for quality control in production systems have to be able to withstand the often very high temperatures that prevail in these environments. Research scientists have produced a CMOS chip which functions even at a temperature of 115 degrees Celsius.
Tue, 21 Sep 10
Low-calorie cheesecake? Why we have trouble estimating calories
http://feeds.sciencedaily.com/~r/sciencedaily/~3/k9F680ZYXjI/100920172738.htm
When it comes to estimating calorie counts, Americans aren't really on the ball. According to a new study, this may be because of the order in which we encounter the food.
Tue, 21 Sep 10
Why thinking of nothing can be so tiring: Brain wolfs energy to stop thinking
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lLerQrxyij8/100920172736.htm
Mathematicians have found that the brain uses a substantial amount of energy to halt the flow of information between neurons. Maybe that's part of the reason thinking of nothing can be so tiring.
Tue, 21 Sep 10
First microwave image of the complete Moon
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1ueeAGHT5QQ/100920110942.htm
The first microwave image of the complete Moon was obtained thanks to the Chinese lunar satellite Chang’E-1. Global brightness temperature maps reveal radiation from the surface and deeper layers of the Moon and its diurnal variation. This will help astronomers to determine the detailed heat flow and, thus, the inner energy of the Moon.
Tue, 21 Sep 10
Breakthrough in drug trial offers hope for heart attack patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bNckkDZNWCY/100913093040.htm
New findings from a major drug trial have brought experts a step closer to developing a drug which could prevent thousands of deaths from heart attacks.
Tue, 21 Sep 10
Lightweight true random number generators a step closer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UBDeOwidw_I/100920074017.htm
The widespread use of true random number generators has taken a step closer following the creation of the most lightweight designs to date.
Tue, 21 Sep 10
Could learning self-control be enjoyable?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QyR577c8IpY/100920172744.htm
When it comes to self-control, consumers in the United States are in trouble. But a new study says there's hope; we just need a little help to see self-regulation as fun.
Tue, 21 Sep 10
Windborne desert dust falls on high peaks, dampens Colorado River runoff
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sawFpOFJShQ/100920172746.htm
When the winds are right and the desert is dry, dust blows eastward from the semi-arid regions of the US Southwest. In a dust-up, Western style, small dark particles of the dust fall on the mountains' white snowfields, ultimately affecting the entire Colorado River watershed.
Tue, 21 Sep 10
Herschel Mars observations: First results
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_1QauFiYgAk/100920122754.htm
The Herschel Space Observatory is providing its first exciting results on Mars. An accurate globally averaged temperature profile of the Martian atmosphere may cause scientists to revise their models about atmospheric circulation on Mars. And the first sub-millimeter observation of molecular oxygen on the planet may lead to a completely new picture of the oxygen distribution in the Martian atmosphere.
Tue, 21 Sep 10
Early prostate cancer detection, screening: No benefit for men with low baseline PSA value, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Z5rrQHjgw00/100913080621.htm
Men aged 55-74 years who have low baseline blood levels of prostate specific antigen (PSA) are not likely to benefit from further screening and treatment, according to a new study.
Tue, 21 Sep 10
Commercial-scale test of new technology to recover coal from sludge successful
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RBwzPNEXVXg/100915140128.htm
A new technology for removing water from ultrafine coal slurry has been successfully tested at the commercial scale at an operating coal cleaning plant. The technology offers the possibility of reducing the coal slurry impoundment problem from the source.
Tue, 21 Sep 10
Future of football: GPS and miniature accelerometers to better assess player's training load and fitness levels
http://feeds.sciencedaily.com/~r/sciencedaily/~3/V00Uag3lz8U/100916073412.htm
A new research project in the UK may have important implications for the world of football (soccer) through the use of new technology such as GPS and miniature accelerometers to better assess a player's training load and fitness levels.
Tue, 21 Sep 10
Earth's highest coastal mountain on the move
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jdCrzVRSbgg/100920111315.htm
The rocks of Colombia's Sierra Nevada de Santa Marta -- the highest coastal mountain on Earth -- tell a fascinating tale: the mountain collides and then separates from former super-continents. Volcanoes are born and die. The mountain travels from Peru to northern Colombia and finally rotates in a clockwise direction to open up an entirely new geological basin.
Tue, 21 Sep 10
Cholesterol drug may have role in treating prostate cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PwTx9mivxNg/100920111317.htm
A drug commonly prescribed for people with high cholesterol may also be effective in treating prostate cancer, according to new research.
Tue, 21 Sep 10
Biofuel from inedible plant material easier to produce following enzyme discovery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/klANFUo9XkE/100913152202.htm
Researchers have discovered key plant enzymes that normally make the energy stored in wood, straw, and other non-edible parts of plants difficult to extract. The findings can be used to improve the viability of sustainable biofuels that do not adversely affect the food chain.
Tue, 21 Sep 10
Possible 'persistence' switch for tuberculosis found: Computer model finds probable genetic mechanism for TB dormancy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/J4IQSyk7xdE/100917121609.htm
A model for the genetic "persistence" switch that toggles tuberculosis bacteria into a dormant state that resists antibiotics and immune system responses is described in a new study. An analysis of stress-response genes in the organism Mycobacterium tuberculosis has allowed bioengineers to zero in on a gene network that appears to help the bacteria ward off attacks.
Tue, 21 Sep 10
Fences could help clean up watercourses
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lPNIazhLFOc/100920081324.htm
Building good fences could make our water cleaner, and help us to meet European standards, according to new research. Scientists have created a computer model to investigate the problem of faecal pollution in UK rivers. They found that simple farm-scale solutions are likely to be most effective at reducing the numbers of potentially dangerous organisms entering watercourses – and could work out cheaper both for farmers and consumers.
Tue, 21 Sep 10
Return troops face both physical and mental challenges: Women suffer from more conditions than men, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5fFwoukzEYo/100920081330.htm
Is the US health system comprehensively meeting the needs of returning veterans? With the recent attention to mental illness in returning soldiers, and post-traumatic stress disorder (PTSD) in particular, little research has focused on the medical care needs of those returning from Operation Enduring Freedom/Operation Iraqi Freedom, according to experts.
Tue, 21 Sep 10
Magnetic attraction for fish, crabs? Study examines whether magnetic fields from aquatic power sources affect animals
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iSUXsIx-XGs/100920101149.htm
Scientists are examining how aquatic animals behave around electromagnetic fields similar to those created by marine power devices.
Tue, 21 Sep 10
New drug a potential treatment for Type 2 diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IcS-7C6Ogcg/100920080120.htm
Australian scientists have shown that a drug candidate, Lisofylline, could be useful in treating Type 2 diabetes. Researchers tested the anti-inflammatory drug which is undergoing clinical trials for other diseases, on mice being fed high-fat diets.
Tue, 21 Sep 10
Violent video games increase aggression long after the game is turned off, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kJ7WWVhPPvY/100920094620.htm
Playing a violent video game can increase aggression, and when a player keeps thinking about the game, the potential for aggression can last for as long as 24 hours, according to a new study.
Tue, 21 Sep 10
How best to prevent blood clots? Thigh-length surgical stockings, study suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/a2RdR0zlxu4/100920101159.htm
Treating hospital patients with thigh-length surgical stockings, rather than knee-high socks, can reduce life threatening blood clots, a new study suggests.
Tue, 21 Sep 10
Apollo discovery tells a new story
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rYUzDG5R6XA/100920094616.htm
A rare bronze signet ring with the impression of the face of the Greek sun god, Apollo, has been discovered at Tel Dor, in northern Israel.
Tue, 21 Sep 10
Hyperkinetic disorders in children are on the rise, German study suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wjE9UjYqIaI/100920101013.htm
Hyperkinetic disorders among children and adolescents are becoming increasingly common, new research suggests. In a new study, scientists in Germany address the question how this has affected the frequency of prescriptions for methylphenidate, a stimulant drug that is used to treat such disorders.
Tue, 21 Sep 10
Childhood viral infection may be a cause of obesity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rNmXqaQX6sY/100920074011.htm
The emerging idea that obesity may have an infectious origin gets new support in a cross-sectional study researchers who found that children exposed to a particular strain of adenovirus were significantly more likely to be obese.
Tue, 21 Sep 10
Higher incidence of seizures seen in children with H1N1 virus compared to seasonal flu
http://feeds.sciencedaily.com/~r/sciencedaily/~3/krwk4ycohoU/100920074015.htm
A recent study determined that the 2009 pandemic influenza A caused a higher rate of neurological complications in children than the seasonal flu. The most common complications observed were seizures and encephalopathy. This is among the most extensive evaluations of neurological complications following H1N1 flu in children.
Tue, 21 Sep 10
Serious hockey injuries among young children skyrocketing, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tmoSqpPuHrA/100920111346.htm
The incidence of hockey-related injuries among children aged 9 to 14 leading to emergency department visits more than doubled between 1990 and 2006, according to a new nationwide U.S. study. There were 2,935 hockey injuries treated in emergency departments in that age group in 1990, increasing to 7,713 in 2006 -- an increase of 163 percent.
Tue, 21 Sep 10
Plague researchers race to beat bioterrorists
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ebpwfbGynUs/100920111323.htm
Given the many pressing concerns of the day, fear of plague probably isn't what causes most Americans to lose sleep. But for those whose responsibility it is to combat bioterrorism, plague is among the highest priorities.
Tue, 21 Sep 10
End of microplates? Novel electronic biosensing technology could facilitate new era of personalized medicine
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4ZDlqf9SBhE/100920094618.htm
The multi-welled microplate, long a standard tool in biomedical research and diagnostic laboratories, could become a thing of the past thanks to new electronic biosensing technology developed by a team of microelectronics engineers and biomedical scientists.
Tue, 21 Sep 10
Favorable expectations make people like using a new mobile phone, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PfJAjCrKue0/100920080455.htm
The more a user expects to like using a new mobile phone, the more he or she will like to use it. According to researchers in Finland, users' favorable expectations make them forgive encountered usability problems and perceive new mobile phones usable.
Tue, 21 Sep 10
Parasitic 'warrior worms' discovered in snails; Scientists see possible biomedical applications
http://feeds.sciencedaily.com/~r/sciencedaily/~3/t5gyADrqupM/100916091759.htm
Scientists have discovered a caste of genetically identical "warrior worms" -- members of a parasitic fluke species that invades the California horn snail.
Tue, 21 Sep 10
Data clippers to set sail to enhance future planetary missions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FN5pq003T_8/100919182645.htm
A new golden age of sailing may be about to begin -- in space. Future missions to explore the outer planets could employ fleets of ‘data-clippers’ -- manoeuvrable spacecraft equipped with solar sails, to ship vast quantities of scientific data to back Earth. The technology could be ready in time to support mid-term missions to the moons of Jupiter and Saturn.
Tue, 21 Sep 10
Technology that can withstand extremes of temperature and radiation created
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7LAO72Wiva0/100919211734.htm
Radio transmitters that can withstand temperatures of up to 900 degrees C could soon be dropped into the depths of the earth to provide early warning of a volcanic eruption. The state-of-the-art technology uses silicon carbide electronics that can withstand temperatures equal to the inside of a jet engine.
Tue, 21 Sep 10
Human unconscious is transferred to virtual characters
http://feeds.sciencedaily.com/~r/sciencedaily/~3/z6AVXLn1RnM/100902073637.htm
Virtual characters can behave according to actions carried out unconsciously by humans. Researchers have created a system which measures human physiological parameters, such as respiration or heart rate, and introduces them into computer designed characters in real time.
Tue, 21 Sep 10
'Archeologists of the air' isolate pristine aerosol particles in the Amazon
http://feeds.sciencedaily.com/~r/sciencedaily/~3/m4FHlv3D5VQ/100916145053.htm
Environmental engineers who might better be called "archeologists of the air" have, for the first time, isolated aerosol particles in near pristine pre-industrial conditions. Working in the remote Amazonian Basin north of Manaus, Brazil, the researchers measured particles emitted or formed within the rainforest ecosystem that are relatively free from the influence of anthropogenic, or human, activity.
Tue, 21 Sep 10
A chip off the early hominin tooth: Researchers develop method for determining the diet of our early ancestors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wvki7LnA-Qw/100916121330.htm
Were our early mammalian ancestors vegetarians, vegans or omnivores? It's difficult for anthropologists to determine the diet of early mammalians because current fossil analysis provides too little information. But a new method that measures the size of chips in tooth fossils can help determine the kinds of foods these early humans consumed.
Mon, 20 Sep 10
At the crossroads of chromosomes: Study reveals structure of cell division’s key molecule
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7oN2heQlo_Q/100917101814.htm
On average, one hundred billion cells in the human body divide over the course of a day. Most of the time the body gets it right but sometimes, problems in cell replication can lead to abnormalities in chromosomes resulting in many types of disorders, from cancer to Down Syndrome. Now, researchers have defined the structure of a key molecule that plays a central role in how DNA is duplicated and then moved correctly and equally into two daughter cells to produce two exact copies of the mother cell. Without this molecule, entire chromosomes could be lost during cell division.
Mon, 20 Sep 10
Using chest compressions first just as successful as immediate defibrillation after cardiac arrest, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-FmrGGkvsyQ/100909003702.htm
In cardiac arrest, is it best to start pumping on the victim's chest or give an immediate shock to the heart? A new study has found that both rescue strategies are effective, yet chest compressions before defibrillation may be best in events where emergency response times are longer than five minutes.
Mon, 20 Sep 10
Chemists discover method to create high-value chemicals from biomass
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6WStrBh248E/100902173442.htm
Chemist Walter Trahanovsky was trying to produce sugar derivatives from biomass using high-temperature chemistry. He was surprised when his research also produced significant yields of high-value chemicals.
Mon, 20 Sep 10
Emotional robot pets
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Fk04bljeyYc/100917111116.htm
Designers of robot pets are fighting a never-ending battle with consumers to provide entertaining and realistic gadgets that respond to human interaction in ever more nuanced ways, mimicking the behavior of real pet animals or even people. Researchers in Taiwan are now looking at a new design paradigm that could see the development of a robot vision module that might one-day recognize human facial expressions and respond appropriately.
Mon, 20 Sep 10
Fossil of giant bony-toothed bird from chile sets wingspan record
http://feeds.sciencedaily.com/~r/sciencedaily/~3/d6ROW1NhCPY/100918210719.htm
A newly discovered skeleton of an ancient seabird from northern Chile provides evidence that giant birds were soaring the skies there 5-10 million years ago. The wing bones of the animal exceed those of all other birds in length; its wingspan would have been at least 5.2 m (17 ft.). This is the largest safely established wingspan for a bird. Other, larger estimates for fossil birds have been based on much less secure evidence.
Mon, 20 Sep 10
Imbalanced diet and inadequate exercise may underlie asthma in children
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hGEA3ehrQYU/100916121324.htm
Even children of a healthy weight who have an imbalanced metabolism due to poor diet or exercise may be at increased risk of asthma, according to new research, which challenges the widespread assumption that obesity itself is a risk factor for asthma.
Mon, 20 Sep 10
Scientists decode genomes of precocious fruit flies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ImGkPIJB0o0/100916162537.htm
Researchers have deciphered how lowly fruit flies bred to rapidly develop and reproduce actually evolve over time. The findings contradict the long-held belief that sexual beings evolve the same way simpler organisms do and could fundamentally alter the direction of genetic research for new pharmaceuticals and other products.
Mon, 20 Sep 10
Adolescents with fibromyalgia who are physically active report lower levels of pain and disability
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Qn_u29ecKIw/100918214644.htm
Adolescents with fibromyalgia who are physically active report lower levels of pain and disability, according to a new study
Mon, 20 Sep 10
Protein clamps tight to telomeres to help prevent aging and support cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AC_-CiJHdRc/100915140134.htm
Researchers have published the first detailed report on the structure and function of a crucial domain in the protein known as Cdc13, which sustains telomeres by clamping to DNA and recruiting telomere-lengthening enzymes to the area. The study was performed using the yeast gene, however, this essential life process has changed little through evolution, and evidence suggests that the human equivalent of this protein may make a good target for future anticancer drugs.
Mon, 20 Sep 10
House-sharing with microbes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-fsf_ZIHAdQ/100908191130.htm
Household dust contains up to 1000 different species of microbes, with tens of millions of individual bacterial cells in each gram. And these are just the ones that can be grown in the lab. New research looks at how we share our living and working spaces with millions of microbes, not all of whom are bad news.
Mon, 20 Sep 10
Targeted therapy decreases progression rate in thyroid cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8TVOGpq01zA/100918181614.htm
The drug pazopanib may help revolutionize the care of patients with metastatic, rapidly progressive differentiated thyroid cancers, say researchers who are publishing findings of a phase II clinical trial.
Mon, 20 Sep 10
Cosmic ice sculptures: Dust pillars in the Carina Nebula
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KGf0Hb0ciC8/100918214322.htm
Enjoying a frozen treat on a hot summer day can leave a sticky mess as it melts in the Sun and deforms. In the cold vacuum of space, there is no edible ice cream, but there is radiation from massive stars that is carving away at cold molecular clouds, creating bizarre, fantasy-like structures.
Mon, 20 Sep 10
Fast-track gene-ID method speeds rare disease search
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SGo9hSRvUXk/100916155203.htm
Scientists have identified a gene responsible in some families for a devastating inherited kidney disorder, thanks to a new, faster method of genetic analysis not available even two years ago. The success offers hope that scientists can speed the painstaking search for the genes responsible for many rare diseases and test drugs to treat them.
Mon, 20 Sep 10
Tracking triclosan's field footprint
http://feeds.sciencedaily.com/~r/sciencedaily/~3/R3Bf6Q8HRTg/100910163329.htm
A study by agricultural scientists and cooperators provides new details about how fertilizing soils with biosolids also introduces triclosan -- an antibacterial agent in soaps and other cleaning supplies -- into the environment.
Mon, 20 Sep 10
Native Hawaiians: Vulnerability to early death at all ages, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2Qodzo18ok8/100916162530.htm
Throughout their lives, Native Hawaiians have higher risks of death than white Americans, according to a new study. The research is the first known study to assess mortality patterns among Native Hawaiians at the national level, including those living outside the state of Hawaii.
Mon, 20 Sep 10
AIDS virus lineage much older than previously thought
http://feeds.sciencedaily.com/~r/sciencedaily/~3/T99lB9pCazE/100916145059.htm
An ancestor of HIV that infects monkeys is thousands of years older than previously thought, suggesting that HIV, which causes AIDS, is not likely to stop killing humans anytime soon.
Mon, 20 Sep 10
Molecule 968 binds glutaminase and starves cancer cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JzR07zCLc50/100918213450.htm
A molecule -- simply called 968 -- can starve cancer cells and the tumors they produce, says new research. The key to this research is the amino acid glutamine. Researchers have long believed that starving cancer cells of glutamine, which cancer cells require in larger quantities than normal cells, would help fight some cancers. Now, they have discovered a molecule that does the job: Dubbed 968 by investigators, this proof of concept molecule binds to the enzyme glutaminase to inhibit cancer growth by blocking the cancer cells' utilization of glutamine.
Mon, 20 Sep 10
'Nanosprings' offer improved performance in biomedicine, electronics
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZnPmp00MQsw/100916170923.htm
Researchers have reported the successful loading of biological molecules onto "nanosprings" -- a type of nanostructure that has gained significant interest in recent years for its ability to maximize surface area in microreactors.
Mon, 20 Sep 10
Lack of access to healthy food may contribute to health disparities in kidney disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5vOyRbONmUc/100916170914.htm
Processed and fast foods enriched with phosphorus additives may play a role in health disparities in chronic kidney disease, according to a new study. Previously, genetics was considered the leading reason blacks are four times more likely to progress to end stage renal disease than whites and have much higher rates of cardiovascular disease and mortality in early chronic kidney disease.
Mon, 20 Sep 10
Placebo effect significantly improves women's sexual satisfaction, study shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oQ7MkU8NGcg/100916073246.htm
Many women with low sex drives reported greater sexual satisfaction after taking a placebo, according to new psychology research.
Mon, 20 Sep 10
How HIV resists AZT: Virus hijacks a common molecule
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fNeSQ0p1K5E/100919131858.htm
Researchers have discovered the details of how HIV resists AZT. The scientists believe their discovery helps researchers understand how important anti-AIDS treatments can fail and could help AIDS researchers develop more effective treatment for the disease.
Mon, 20 Sep 10
Two studies find new genetic links to ovarian cancer risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oPRxAjR2Jsw/100919131854.htm
Cancer researchers have identified four chromosome locations with genetic changes that are likely to alter a woman's risk of developing ovarian cancer. Researchers say that while more needs to be learned about the function of the specific chromosomal regions involved in susceptibility, the discoveries move them a major step closer to individualized risk assessments for ovarian cancer.
Mon, 20 Sep 10
Genetic variants modifying breast cancer risk discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EAJUUix4Y9s/100919131848.htm
Individuals with disrupting mutations in the BRCA1 gene are known to be at substantially increased risk of breast cancer throughout their lives. Now, discoveries from an international research team led by Mayo Clinic researchers show that some of those persons may possess additional genetic variants that modify their risk.
Mon, 20 Sep 10
Biologists discover biochemical link between biological clock and diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DhPEvYmsya4/100919131856.htm
Biologists have found that a key protein that regulates the biological clocks of mammals also regulates glucose production in the liver and that altering the levels of this protein can improve the health of diabetic mice.
Mon, 20 Sep 10
2010 tied with 1998 as warmest global temperature on record
http://feeds.sciencedaily.com/~r/sciencedaily/~3/r7TrerC0PZI/100919104002.htm
The first eight months of 2010 tied the same period in 1998 for the warmest combined land and ocean surface temperature on record worldwide. Meanwhile, the June-August summer was the second warmest on record globally after 1998, and last month was the third warmest August on record. Separately, last month's global average land surface temperature was the second warmest on record for August, while the global ocean surface temperature tied with 1997 as the sixth warmest for August.
Mon, 20 Sep 10
Better marker for breast cancer may reduce need for second surgeries
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MDyvlOctSHs/100919103204.htm
A new material could help surgeons more accurately locate breast cancers, reduce the need for second surgeries and minimize pre-surgical discomfort for patients. Microscopic gas-filled spheres of silica, a porous glass, can mark the location of early-stage tumors to show their position using ultrasound imaging in the operating room.
Mon, 20 Sep 10
Possible alternate therapy for adults with poorly controlled asthma
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kaRR4mo8_X0/100919103202.htm
A drug commonly used for the treatment of chronic obstructive pulmonary disease successfully treats adults whose asthma is not well-controlled on low doses of inhaled corticosteroids, researchers report.
Sun, 19 Sep 10
Night light pollution affect songbirds' mating life, research suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oum21z252po/100916121322.htm
In today's increasingly urbanized world, the lights in many places are always on, and according to a new study, that's having a real impact on the mating life of forest-breeding songbirds.
Sun, 19 Sep 10
Alzheimer's drug boosts perceptual learning in healthy adults
http://feeds.sciencedaily.com/~r/sciencedaily/~3/b5biYUn3enU/100916121326.htm
Scientists have found that healthy adults showed greater improvement from practice on a motion direction discrimination task when they took donepezil, a commonly prescribed Alzheimer's drug, compared with when they took a placebo. The research is helping neuroscientists better understand perceptual learning in healthy adults.
Sun, 19 Sep 10
Quantum tornado in the electron beam: Manipulating materials with rotating quantum particles
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Z6-kdKFikfE/100916092055.htm
Researchers have succeeded in producing what are known as electron vortex beams: rotating electron beams, which make it possible to investigate the magnetic properties of materials. In the future, it may even be possible to manipulate the tiniest components in a targeted manner and set them in rotation.
Sun, 19 Sep 10
Synthetic fuels research aims to reduce oil dependence
http://feeds.sciencedaily.com/~r/sciencedaily/~3/F36MVHOl94o/100915100933.htm
Researchers have developed a facility aimed at learning precisely how coal and biomass are broken down in reactors called gasifiers as part of a project to strengthen the scientific foundations of the synthetic fuel economy.
Sun, 19 Sep 10
Overprotective parents may impact heart anxiety in adults with congenital heart conditions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PwbmqfFKS5I/100915084805.htm
Adults with congenital heart disease are more likely to suffer heart-focused anxiety -- a fear of heart-related symptoms and sensations -- if their parents were overprotective during their childhood and adolescence.
Sun, 19 Sep 10
Fish schools and krill swarms take on common shape
http://feeds.sciencedaily.com/~r/sciencedaily/~3/u3Aljb9XcI0/100916121320.htm
When fish or tiny, shrimp-like krill get together, it appears they follow the same set of "rules." According to a new study, shoals of fish and swarms of krill hang out in groups that take on the same overall shape; it's not a simple sphere, a cylinder, or ovoid, but something more akin to an irregular crystal, the researchers say.
Sun, 19 Sep 10
Promising techniques for extending the life of an organ transplant developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/R5qMv8JKz_w/100915084018.htm
Experts have revealed exciting new scientific developments for people with an organ transplant, intended to help prevent rejection of the new organ and extend its life. These advances in protein therapeutics and cell therapy could provide a future solution to some of the challenges surrounding organ transplantation.
Sun, 19 Sep 10
NASA uses new method to estimate Earth mass movements
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5u_s22y7OS4/100916090841.htm
NASA and European researchers have conducted a novel study to simultaneously measure, for the first time, trends in how water is transported across Earth's surface and how the solid Earth responds to the retreat of glaciers following the last major Ice Age, including the shifting of Earth's center of mass.
Sun, 19 Sep 10
U.S. tsunami detection improves, but coastal areas still vulnerable, report finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XcRpnwEBS1k/100917151844.htm
The nation's ability to detect and forecast tsunamis has improved since the 2004 Indian Ocean tsunami, but current efforts are still not sufficient to meet challenges posed by tsunamis generated near land that leave little time for warning, says a new report.
Sun, 19 Sep 10
Proposal by WHO to eliminate AIDS in South Africa is flawed, model shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hNqYmKuQ2vs/100917090842.htm
The World Health Organization has proposed a new strategy for combating the AIDS epidemic in South Africa. It is a strategy that is seriously flawed, say researchers.
Sun, 19 Sep 10
Asian 'unicorn' photographed for first time in over 10 years
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cpRaxBvdS-Y/100917090846.htm
For the first time in more than ten years, there has been a confirmed sighting of one of the rarest and most mysterious animals in the world, the saola of Laos and Vietnam. The Government of the Lao People's Democratic Republic (also known as Laos) announced on September 15 that in late August villagers in the central province of Bolikhamxay captured a saola and brought it back to their village. The animal died several days later, but was photographed while still alive.
Sun, 19 Sep 10
How does Prozac act? By acting on the microRNA
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AMTtuvbY1po/100916145101.htm
The adaptation mechanisms of the neurons to antidepressants has, until now, remained enigmatic. Research now sheds new light on the mechanisms of action of these drugs which have been used for more than 30 years and are heavily consumed.
Sun, 19 Sep 10
Channeling efforts to fight cystic fibrosis: Crosstalk between ion channels points to new therapeutic strategy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9a-QjOnVcuE/100917151848.htm
Researchers have found a possible new target for fighting cystic fibrosis (CF) that could compensate for the lack of a functioning ion channel in affected CF-related cells.
Sun, 19 Sep 10
Research could improve detection of liver damage
http://feeds.sciencedaily.com/~r/sciencedaily/~3/416sEfCfJKM/100917101811.htm
New research could lead to faster and more accurate diagnoses of liver damage. Scientists in the UK used paracetamol as the basis for the study: research indicates that paracetamol can place temporary stress on the liver in around a third of people who take a normal dose (4g per day) but the liver returns to normal when the drug has left the system.
Sun, 19 Sep 10
Radiometric dating still reliable (again), research shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2BvMmB4a20o/100915171534.htm
Recent puzzling observations of tiny variations in nuclear decay rates have led some to question the science behind carbon-14 dating and similar techniques. However scientists tested the hypothesis that solar radiation might affect the rate at which radioactive elements decay and found no detectable effect.
Sun, 19 Sep 10
Standardized violence-prevention programs may not prevent teen fighting, findings suggest
http://feeds.sciencedaily.com/~r/sciencedaily/~3/osGiGtc_fs4/100917072129.htm
Researchers have uncovered new insights on adolescent fighting: what triggers it, and how to stem it.
Sat, 18 Sep 10
Physicists cross hurdle in quantum manipulation of matter
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PMe0NsVYXdo/100917111118.htm
Finding ways to control matter at the level of single atoms and electrons fascinates many scientists and engineers because the ability to manipulate single charges and single magnetic moments (spins) may help researchers penetrate deep into the mysteries of quantum mechanics and modern solid-state physics. It may also allow development of new, highly sensitive magnetometers with nanometer resolution, single-spin transistors for coherent spintronics, and solid-state devices for quantum information processing.
Sat, 18 Sep 10
Father absence linked to earlier puberty among certain girls
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WLGhvVtniTo/100917072126.htm
Girls in homes without a biological father are more likely to hit puberty at an earlier age, according to a new study. The findings held only for girls in higher income households, and even after the girls' weight was taken into account.
Sat, 18 Sep 10
When Earth's mantle meets its core: Findings boost hypothesis of deep magma ocean
http://feeds.sciencedaily.com/~r/sciencedaily/~3/haNUyJUD8K0/100917121607.htm
Earth's mantle and its core mix at 2900 kilometers under our feet in a mysterious zone. A team of geophysicists has just verified that the partial fusion of the mantle is possible in this area when the temperature reaches 4200 Kelvin. This reinforces the hypothesis of the presence of a deep magma ocean. The results have an effect in the understanding of the dynamics, composition and formation of the depths of our planet.
Sat, 18 Sep 10
Women with diabetes having more C-sections and fetal complications, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oP-9QKZneA4/100917151850.htm
Nearly half of women with diabetes prior to pregnancy have a potentially-avoidable C-section and their babies are twice as likely to die as those born to women without diabetes, according to a new study.
Sat, 18 Sep 10
Pickle spoilage bacteria may help environment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wqwD6P3g5O8/100917161157.htm
Spoilage bacteria that can cause red coloration of pickles' skin during fermentation may actually help clean up dyes in textile industry wastewater, according to a new study.
Sat, 18 Sep 10
Teenagers are more sedentary on weekends
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aZk3tMxU_qM/100917085228.htm
The new school year has started and the school routine is back. A new study has shown how the proportion of young people who watch television and play on the computer for more than two hours per day doubles at the weekend. And while boys opt for video games, teenage girls prefer to surf the net.
Sat, 18 Sep 10
Foraging for fat: Crafty crows use tools to fish for nutritious morsels
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Y81guzizlkI/100916145057.htm
Researchers have used CSI-style analysis to reveal the huge benefits conferred on New Caledonian crows through tool use. Their results give hard evidence of the huge evolutionary advantage that can be gained by tool use -- giving an insight into the importance of tool use in survival.
Sat, 18 Sep 10
Popular supplements to combat joint pain do not work, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Xpu_1JMKoLs/100916202428.htm
Two popular supplements taken by millions of people around the world to combat joint pain, do not work, new research finds.
Sat, 18 Sep 10
Veterinarian says natural foods not always best for pets
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TxA2ahh8rwE/100917085624.htm
While natural food is a rising trend among humans, pet owners should be careful before feeding similar types of food to their pets, according to a veterinarian.
Sat, 18 Sep 10
Protein can regulate blood stem cells: New hope for future leukemia treatments
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-DcZ_ANozz4/100916155205.htm
Researchers have found that a protein can regulate certain characteristics of blood stem cells, which could lead to a better treatment for leukemia patients.
Sat, 18 Sep 10
Tornado-chasing becomes vacation choice, researchers find
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kCi4m9-zFG8/100916170921.htm
Instead of heading to the coast for vacation, people are traveling to Tornado Alley. The number of people registering to get a closer look at tornadoes is growing as vacationers trade in their beach towels for a ride with storm chasers. Labeled "Tornado Tourists" by a University of Missouri research team, these travelers are searching for an experience beyond just thrills.
Sat, 18 Sep 10
Less is more in the fight against terrorism
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nlXuCvAqYWM/100917090835.htm
Terrorist networks are complex. Now, a mathematical analysis of their properties suggests that the best way to fight them is to isolate the hubs within the network rather than trying to destroy the network as a whole through short-term battles.
Sat, 18 Sep 10
Gene limits learning and memory in mice
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Y0ux5gkjCeI/100917183024.htm
Deleting a certain gene in mice can make them smarter by unlocking a mysterious region of the brain considered to be relatively inflexible, scientists have found. Mice with a disabled RGS14 gene are able to remember objects they'd explored and learn to navigate mazes better than regular mice, suggesting that RGS14's presence limits some forms of learning and memory.
Sat, 18 Sep 10
Great Lakes water quality is focus of new research grant
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JxYavnlsiwc/100917183033.htm
How could climate change and our response to it affect the Great Lakes' water quality? That's the primary question a team of 27 scientists will answer in a new research project.
Sat, 18 Sep 10
Mechanism behind demethylation pinpointed in APC gene mutants
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RzLmsP3_8e4/100917183031.htm
Researchers demonstrate in a study the mechanism by which mutation of the APC gene affects a cellular process known as DNA methylation.
Sat, 18 Sep 10
Drug combination may treat traumatic brain injury
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EEhOh-7_Mm4/100917183029.htm
Currently, there are no drugs available to treat TBI: a variety of single drugs have failed clinical trials, suggesting a possible role for drug combinations. Testing this hypothesis in an animal model, researchers tested five drugs in various combinations. Their observations suggest a potentially valuable role for minocycline plus N-acetylcysteine to treat TBI.
Sat, 18 Sep 10
Environmental impact of organic solar cells assessed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/63kduVNdh_A/100917183027.htm
To better understand the energy and environmental benefits and detriments of solar power, a research team has conducted one of the first life-cycle assessments of organic solar cells. The study found that the embodied energy -- or the total energy required to make a product -- is less for organic solar cells compared with conventional inorganic devices.
Sat, 18 Sep 10
Tick tock: Rods help set internal clocks, biologist says
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HO9kvdxc3vU/100917161154.htm
Rod cells -- one of three kinds of exquisitely photosensitive cells found in the retina of the eye -- are surprisingly found to be the only ones responsible for setting our internal "clocks" in low light.
Fri, 17 Sep 10
Brain matter linked to introspective thoughts: Structure of prefrontal cortex helps humans think about one's own thinking
http://feeds.sciencedaily.com/~r/sciencedaily/~3/S3wlatVZ5Wk/100916145047.htm
A specific region of the brain appears to be larger in individuals who are good at turning their thoughts inward and reflecting upon their decisions, according to new research.
Fri, 17 Sep 10
Researchers identify genetic marker of aggressive Alzheimer's disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-ieM4wllsh0/100916170916.htm
An international team of Alzheimer's disease experts has uncovered a gene variation that appears to predict the rate at which Alzheimer's disease will progress. Whereas previous studies have focused on factors that influence the risk for Alzheimer's, the new research points to a way to determine how rapidly Alzheimer's patients may develop full-blown dementia.
Fri, 17 Sep 10
New insights into the moon's rich geologic complexity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mE5mO31bUJk/100916145105.htm
The moon is more geologically complex than previously thought, scientists report. Their conclusion is based on data from the Diviner Lunar Radiometer Experiment aboard NASA's Lunar Reconnaissance Orbiter, an unmanned mission to comprehensively map the entire moon.
Fri, 17 Sep 10
Fat stem cells safe for breast reconstruction when cancer is dormant, study suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/axAC82vIa5M/100916133657.htm
Fat-derived stem cells can be safely used to aid reconstruction of breast tissue after mastectomy as long as there is no evidence of active cancer, according to a new study. Plastic surgeons have been considering adding stem cells to fat transferred from another part of the body to the breast to encourage tissue integration, but have been concerned about the potential for tumor regrowth.
Fri, 17 Sep 10
The biggest crash on Earth: India slides under Tibet, but how?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/l8ps_frH8Lc/100916145129.htm
During the collision of India with the Eurasian continent, the Indian plate was pushed about 500 kilometers under Tibet, reaching a depth of 250 kilometers. The result of this largest collision in Earth's history is the world's highest mountain range. But even more recently, the collision could be felt -- for example, the earthquakes that created the 2004 tsunami in the Indian Ocean.
Fri, 17 Sep 10
How Palestinian and Israeli children are psychologically scarred by exposure to war
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8p-zEaT0UuU/100916155200.htm
As another round of talks continues between Israelis and Palestinians, a new study documents the impact the violence has been inflicting on the region's children.
Fri, 17 Sep 10
Moon's craters give new clues to early solar system bombardment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_EFMuIYucfg/100916145051.htm
A first-ever uniform, comprehensive catalog of large craters on the Moon is providing new clues to the bombardment history that characterized the chaotic early days of the inner solar system. Researchers have identified and mapped more than 5,000 large craters, established the oldest regions on the moon, and confirmed a theory about past solar system bombardment.
Fri, 17 Sep 10
Cancer-cell quirk could be exploited to develop new drugs that starve tumors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/peuYyah5qjM/100916145055.htm
Scientists report a previously unknown element of cancer cells' peculiar metabolism. They found that cells can trigger an alternative biochemical pathway that speeds up their metabolism and diverts the byproducts to construct new cells.
Fri, 17 Sep 10
Cardiac imaging breakthrough developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZejMTFuAdBo/100916101900.htm
Cardiologists and surgeons may soon have a new tool to improve outcomes for patients requiring pacemakers, bypass surgery or angioplasties. Imaging research has led to a new process which provides a high resolution, 3-D image of the heart revealing not only its vasculature but also any scar tissue.
Fri, 17 Sep 10
Researcher discovers new 'anti-pathogenic' drugs to treat MRSA
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LDIGUjHAJaU/100916162533.htm
A researcher has identified new anti-pathogenic drugs that, without killing the bacteria, render methicillin resistant Staphylococcus aureus harmless by preventing the production of toxins that cause disease.
Fri, 17 Sep 10
Fungus among us could become non-food source for biodiesel production
http://feeds.sciencedaily.com/~r/sciencedaily/~3/B44xedUOxYc/100609111318.htm
In the quest for alternatives to soybeans, palm, and other edible oilseed plants as sources for biodiesel production, enter an unlikely new candidate: A fungus, or mold, that produces and socks away large amounts of oils that are suitable for low-cost, eco-friendly biodiesel.
Fri, 17 Sep 10
Government urges universal flu vaccinations
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xb2EgBK7l2A/100823121943.htm
The flu kills more than 35,000 people in the United States in an average year -- and most of those deaths could be prevented with a simple vaccine. After last year's H1N1 outbreak, the government says everyone over the age of 6 months needs a flu shot this year.
Fri, 17 Sep 10
Tyrannosaurus redux: T. rex was more than just a large carnivore at top of food chain, new findings reveal
http://feeds.sciencedaily.com/~r/sciencedaily/~3/U38H1ZDvSk8/100916145131.htm
A new research paper highlights recent tyrannosaur discoveries and complex analyses of the biology of certain species. The paper includes a new family tree for T. rex and its relatives.
Fri, 17 Sep 10
Bacteria identified that may lead to inflammatory bowel disease in certain individuals
http://feeds.sciencedaily.com/~r/sciencedaily/~3/J00JK4_RgKM/100916121332.htm
Certain bacteria that inhabit the intestine provide the environmental trigger that initiates and perpetuates chronic intestinal inflammation in individuals who are genetically susceptible to inflammatory bowel disease, a study has found.
Fri, 17 Sep 10
Hot water in cold comets: Water around comets produced with unusual properties
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UzttIyfOWEs/100916075348.htm
Comets, sometimes called “dirty snowballs”, are largely composed of water. An international research team recently succeeded in deciphering an important aspect of the way in which water molecules often form in space. As a surprise, the water molecules produced under cold, dilute conditions turned out to be produced as particles as hot as 60,000 Kelvin. In their research the physicists, though, did not use a telescope, but a particle accelerator.
Fri, 17 Sep 10
Healthy diet rocks when it comes to fighting kidney stones
http://feeds.sciencedaily.com/~r/sciencedaily/~3/biSho0CXWWc/100916170919.htm
Certain key ingredients of a diet designed to prevent high blood pressure can ward off kidney stones, according to a new study. The results suggest how low-fat dairy products and/or plants may have potent kidney stone-fighting properties.
Fri, 17 Sep 10
NASA data track seasonal pollution changes over India
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8AYGE6D95k8/100916090701.htm
Data from the Multi-angle Imaging Spectroradiometer (MISR) instrument on NASA's Terra spacecraft have been used in a groundbreaking new university study that examines the concentration, distribution and composition of aerosol pollution over the Indian subcontinent. The study documents the region's very high levels of natural and human-produced pollutants, and uncovered surprising seasonal shifts in the source of the pollution.
Fri, 17 Sep 10
Strictly high heels: Researchers look at impact of high-heeled Latin dancing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Xf31j3lhPuA/100916111658.htm
With ballroom dancing once again on our screens, all eyes are on the sequins and steps. Well, not quite all eyes. British and Chinese scientists are more interested in the height of the ladies' high heels rather than the torsos and twists and have a few strict words on health and safety for professional dancers.
Fri, 17 Sep 10
Scientists document fate of deep hydrocarbon plumes in Gulf oil spill
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ww0OuHWPfvU/100916145133.htm
In the aftermath of the Deepwater Horizon disaster in the Gulf of Mexico, scientists embarked on a research cruise with an urgent mission: determining the fate and impact of hydrocarbon gases escaping from a deep-water oil spill. What they found was surprising: Three specific hydrocarbon gases -- ethane, propane and butane -- were responsible for most of the respiration and oxygen loss observed in the deep plumes. They further identified the dominant bacteria present in the plumes and suggested some of the organisms were targeting the natural gases.
Fri, 17 Sep 10
Scientists develop test providing new pathway for identifying obesity, diabetes drugs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9PlaDff10xE/100916133653.htm
Scientists have designed a new molecular test that will allow researchers to look for potential drugs targeting a human metabolic enzyme believed to stimulate the appetite and play a role in diabetes.
Fri, 17 Sep 10
Surprisingly complicated molecule found in outer space
http://feeds.sciencedaily.com/~r/sciencedaily/~3/b2bSZBbeM7g/100915084456.htm
In interstellar clouds of extremely small density scientists have managed to find a molecule that has an unexpectedly complicated structure. The discovery will force a change in the way of thinking about chemical processes occurring in the apparently empty areas of the galaxy.
Fri, 17 Sep 10
Neuroimaging identifies patients with REM sleep disturbances who will suffer Parkinson's disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dGYM3zIE9mg/100914191648.htm
In 2006, and after 5 years of follow-up, researchers showed that one-half of all patients with REM sleep disturbances develop a neurodegenerative disorder such as Parkinson's disease. A new study by the same group uses SPECT and transcranial ultrasound neuroimaging techniques to identify those patients at greatest risk of developing neurodegenerative disease.
Fri, 17 Sep 10
Getting the news out: Disease transmission model says media coverage cuts infection rate and pandemic extent
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Bm5cLaB36L0/100916121328.htm
Public health officials have long believed that notifying the public about outbreaks of infectious disease could help reduce transmission rates and the overall impact of a pandemic. Now, researchers have modified the most widely used infectious disease model to account for the impact of media coverage.
Fri, 17 Sep 10
Acamprosate prevents relapse to drinking in alcoholism, review finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/x35c5Dp4VOI/100907210819.htm
Acamprosate reduces the number of patients being treated for alcoholism who return to drinking, according to a new review. The drug showed moderate benefits in trials when used in addition to non-drug treatments.
Fri, 17 Sep 10
Optical chip enables new approach to quantum computing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5_v6jiKoPU4/100916145049.htm
Scientists have developed a new approach to quantum computing that could soon be used to perform complex calculations that cannot be done by today's computers.
Fri, 17 Sep 10
Significant weight-loss from surgery decreases risk for cardiovascular disease in women
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IOudLXBtS-c/100916145135.htm
Bariatric surgery is emerging as a valuable procedure to help morbidly obese individuals lose weight, as studies have shown; it can improve many health profiles and lower mortality. Now, researchers have found another positive impact of significant weight loss after bariatric surgery: it can significantly improve the lipoprotein profiles of women within a year following surgery.
Fri, 17 Sep 10
'Goddess of fortune' found near shores of Sea of Galilee
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TjOmPvqywZE/100916100503.htm
A wall painting (fresco) of Tyche, the Greek goddess of fortune, was exposed during the 11th season of excavation at the Sussita site, on the east shore of the Sea of Galilee. Another female figure was found during this season, of a maenad, one of the companions of the wine god Dionysus.
Fri, 17 Sep 10
Beating blood clots: Reducing your risk before hip replacement surgery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/007d9Y2Nxsc/100916113413.htm
Risk factors for venous thromboembolism after total hip replacement surgery were identified in a new study. While the rate of thromboembolism has been significantly reduced through medication, understanding the risk factors could further reduce the likelihood of patients developing this potentially fatal complication.
Fri, 17 Sep 10
Global initiative underway to preserve yam biodiversity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rd4wX3teifs/100915205714.htm
Farmers and crop scientists worldwide are engaged in an ambitious new effort to add 3,000 yam samples to international gene banks with the aim of saving the diversity of a crop that is consumed by 60 million people on a daily basis in Africa alone.
Fri, 17 Sep 10
Death at home less distressing for cancer patients and families, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ExTQiM6DWx0/100915140130.htm
Cancer patients who die in the hospital or an intensive care unit have worse quality of life at the end-of-life, compared to patients who die at home with hospice services, and their caregivers are at higher risk for developing psychiatric illnesses during bereavement, according to a new study.
Fri, 17 Sep 10
Understanding behavioral patterns: Why bird flocks move in unison
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-eSBfcZxERg/100915080439.htm
Animal flocks, be it honeybees, fish, ants or birds, often move in surprising synchronicity and seemingly make unanimous decisions at a moment's notice, a phenomenon which has remained puzzling to many researchers.
Fri, 17 Sep 10
Discovery of key pathway interaction may lead to therapies that aid brain growth and repair
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OPNVkmBiX4A/100916101902.htm
Researchers have discovered that the two major types of signaling pathways activated during brain cell development operate together to determine how many and which types of brain cells are created during growth and repair in developing and adult brains.
Fri, 17 Sep 10
Shape-shifting robot plane offers safer alternative for maritime rescue
http://feeds.sciencedaily.com/~r/sciencedaily/~3/McHunIFjRsU/100826103835.htm
Use of morphing flight control surfaces has enabled the development of a cost effective unmanned air-sea rescue plane that can operate in extreme weather conditions despite its light weight and small size. State-of-the-art avionics and cameras onboard the seaplane ensure a smooth flight for extended rescue and surveillance missions, while reducing risks to material and crews.
Fri, 17 Sep 10
Asthma and cavities both common in kids but not linked, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AvwC4CAXNSc/100916113420.htm
There is no apparent link between asthma and tooth decay, according to a new study. The large number of variables involved, including severity of asthma symptoms and the variety of types of treatment for the disease, has made it difficult to unequivocally determine whether there is a causal link between the two.
Fri, 17 Sep 10
Optimizing climate change reduction
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2hMxWC8ENm8/100916101856.htm
Scientists have taken a new approach on examining a proposal to fix the warming planet by injecting stratospheric aerosols of sulfates to shade the Earth. Past approaches modeled how the aerosols might affect Earth's climate and chemistry. These researchers began with climate goals and modeled the aerosol distribution pattern that would come closest to achieving their idealized climate. This is the first attempt to determine the optimal way of achieving defined climate goals.
Fri, 17 Sep 10
Depression and heart disease combo more lethal than either one alone, study suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FBjESd0T4Xg/100915205716.htm
The combination of depression and heart disease seems to be far more lethal than having either one of these conditions in isolation, new research suggests.
Fri, 17 Sep 10
3-D computer simulations help envision supernovae explosions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0kQ3M6omAqk/100916113417.htm
For a brief burst of time, supernovae can radiate more energy than the sun will emit in its lifetime. Now, scientists have found a way to make computer simulations of supernovae exploding in three dimensions, which may lead to new scientific insights.
Fri, 17 Sep 10
Increased brain protein levels linked to Alzheimer's disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OaLVGSRkiAQ/100916091753.htm
Elevated levels of a growth protein in the brains of Alzheimer's disease patients is linked to impaired neurogenesis, the process by which new neurons are generated, say researchers.
Fri, 17 Sep 10
Arctic sea ice reaches lowest 2010 extent, third lowest in satellite record
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bV5FlrNO--M/100916091755.htm
The Arctic sea ice cover appears to have reached its minimum extent for the year, the third-lowest recorded since satellites began measuring sea ice extent in 1979, according to researchers.
Fri, 17 Sep 10
How bacteria acquire immunity: First theoretical description of bacterial system to silence viral genes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hS6NxMK6LXA/100915171531.htm
In a new study, scientists have brought the latest tools of computational biology to bear in examining how the processes of natural selection and evolution influence the way bacteria acquire immunity from disease. The study builds upon one of the major discoveries made possible by molecular genetics in the past decade -- the revelation that bacteria and similar single-celled organisms have an acquired immune system.
Fri, 17 Sep 10
Home's electrical wiring acts as antenna to receive low-power sensor data
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Hf94gohnKQw/100915094230.htm
Using a home's electrical wiring as a giant copper antenna allows for wireless sensors that can communicate over a whole house and run for decades on a single watch battery. The device could be used for low-cost medical monitoring or home sensing systems.
Fri, 17 Sep 10
Restricting pub closing times reduces assaults, Australia study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YqxBKjLvmP0/100915205720.htm
A new study reveals that restrictions on pub closing times imposed in 2008 within the Australian city of Newcastle have reduced the assault rate by 37 percent.
Fri, 17 Sep 10
Children's brain development is linked to physical fitness, research finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lSwckW6Oi4M/100915171536.htm
Researchers have found an association between physical fitness and the brain in 9- and 10-year-old children: Those who are more fit tend to have a bigger hippocampus and perform better on a test of memory than their less-fit peers.
Fri, 17 Sep 10
Discovery highlights promise of new immune system-based therapies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-siVpURd8Ro/100915140126.htm
A new focus on the immune system's ability to both unleash and restrain its attack on disease has led scientists to identify cells in mice that prevent the immune system from attacking the animals' own cells, protecting them from autoimmune diseases such as multiple sclerosis, type 1 diabetes, and lupus.
Fri, 17 Sep 10
Discovery of the secrets that enable plants near Chernobyl to shrug off radiation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JR5EXT5oqyI/100915140332.htm
Scientists are reporting discovery of the biological secrets that enable plants growing near the Chernobyl Nuclear Power Plant to adapt and flourish in highly radioactive soil -- legacy of the 1986 nuclear disaster in the Ukraine. Their study helps solve a long-standing mystery.
Fri, 17 Sep 10
Molecule involved in heart failure now implicated in heart attack damage
http://feeds.sciencedaily.com/~r/sciencedaily/~3/L4f-lirH3T4/100915151003.htm
A molecule known to be involved in progressive heart failure has now been shown to also lead to permanent damage after a heart attack, according to researchers.
Fri, 17 Sep 10
NASA's lunar spacecraft completes exploration mission phase
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Yzh-j9GbMl8/100916090351.htm
NASA's Lunar Reconnaissance Orbiter, or LRO, completes the exploration phase of its mission on Sept. 16, after a number of successes that transformed our understanding of Earth's nearest neighbor. LRO completed a one-year exploration mission in a polar orbit approximately 31 miles above the moon's surface. It produced a comprehensive map of the lunar surface in unprecedented detail; searched for resources and safe landing sites for potential future missions to the moon; and measured lunar temperatures and radiation levels.
Fri, 17 Sep 10
Intensive care diaries protect patients from PTSD, researchers find
http://feeds.sciencedaily.com/~r/sciencedaily/~3/goKaUkt4-Yo/100916073418.htm
Some intensive care patients develop post-traumatic stress syndrome (PTSD) after the trauma of a difficult hospital stay, and this is thought to be exacerbated by delusional or fragmentary memories of their time in the intensive care unit. Now researchers have found that if staff and close relatives make a diary for patients, featuring information about their stay and accompanied by photographs, PTSD rates can be significantly reduced.
Thu, 16 Sep 10
Sequencing of cacao genome to help chocolate industry, subsistence farmers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DZrL_InONEg/100915100940.htm
Scientists have announced the preliminary release of the sequenced genome of the cacao tree, an achievement that should help sustain the supply of high-quality cocoa to the $17 billion U.S. chocolate industry and protect the livelihoods of small farmers around the world by speeding up development, through traditional breeding techniques, of trees better equipped to resist the droughts, diseases and pests that threaten this vital agricultural crop.
Thu, 16 Sep 10
Mild memory loss is not a part of normal aging, new research finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/b6NOIogqO_o/100915162547.htm
The very early mild cognitive changes once thought to be normal aging are really the first signs of progressive dementia, in particular Alzheimer's disease. The pathology in the brain related to Alzheimer's and other dementias has a much greater impact on memory function in old age than previously recognized.
Thu, 16 Sep 10
Tranquil scenes have positive impact on brain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JSOK4vLSQCA/100914095932.htm
Tranquil living environments can positively affect the human brain function, according to researchers.
Thu, 16 Sep 10
Scientists glimpse 'dance of skeletons' inside neurons: Insight into developmental disorders, including Williams syndrome
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vTXspA6W1Oo/100913162518.htm
Scientists have uncovered how a structural component inside neurons performs two coordinated dance moves when the connections between neurons are strengthened. The discovery hints at why people with Williams syndrome, a developmental disorder caused by a deletion of several genes, including one that alters dendritic spine remodeling, have such an unusual blend of cognitive strengths and weaknesses.
Thu, 16 Sep 10
Neutrons helping researchers unlock secrets to cheaper ethanol
http://feeds.sciencedaily.com/~r/sciencedaily/~3/b6eFgCI1PgE/100915150959.htm
New insight into the structure of switchgrass and poplars is fueling discussions that could result in more efficient methods to turn biomass into biofuel.
Thu, 16 Sep 10
Higher altitudes hide deadly problem: Increased suicide risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nJUU3mY197I/100915140344.htm
The Intermountain West is renowned for the beauty of its towering mountains and high deserts, but according to new research the region's lofty altitudes significantly influence a deadly problem: the high prevalence of suicides in this part of the country.
Thu, 16 Sep 10
Do children understand irony? New study reveals they do
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zAqHhjDPL4w/100914143430.htm
New research findings reveals that children as young as four are able to understand and use irony. The study may impact the way parents communicate with their family.
Thu, 16 Sep 10
Radiation exposure poses similar risk of first and second cancers in atomic bomb survivors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jRtD2g0FbO8/100915080435.htm
The first large-scale study of the relationship between radiation dose and risk of multiple cancers among atomic bomb survivors in Hiroshima and Nagasaki, Japan, reveals a similar risk in the development of first and second subsequent cancers.
Thu, 16 Sep 10
Tiny MAVs may someday explore and detect environmental hazards
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WHEVumeQXqM/100915151001.htm
Researchers are developing what could become the next phase of high-performance micro air vehicles for the Air Force. The research is on track to evolve into robotic, insect-scale devices for monitoring and exploration of hazardous environments, such as collapsed structures, caves and chemical spills.
Thu, 16 Sep 10
Link between arthritis pain reliever and cardiovascular events discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3cHcWLKFBqg/100913153632.htm
Researchers have discovered a novel mechanism as to why the long-term, high-dosage use of the well-known arthritis pain medication, Vioxx, led to heart attacks and strokes. Their groundbreaking research may pave the way for a safer drug for millions of arthritis patients who suffer acute and chronic pain.
Thu, 16 Sep 10
Largest ever white-shouldered ibis count
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eelSuMeFleM/100914074839.htm
A record-breaking 429 white-shouldered ibis have just been recorded in Cambodia, making the known global population much larger than previously thought. With so many birds remaining in the wild the chances of conservation success are greatly improved -- welcome news for this Critically Endangered bird species.
Thu, 16 Sep 10
Aerobic exercise relieves insomnia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-DG_EpJHBLc/100915140336.htm
Millions of middle-aged and older adults who suffer from insomnia have a new drug-free prescription for a more restful night's sleep. Regular aerobic exercise dramatically improves the quality of sleep, mood and vitality, according to a new study.
Thu, 16 Sep 10
Fountain of youth in bile? Longevity molecule identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0hs2ovR_tk0/100915100935.htm
The human quest for longer life may be one step closer. A new study is the first to identify the role of a bile acid, called lithocholic acid, in extending the lifespan of normally aging yeast. The findings may have significant implications for human longevity and health, as yeast share some common elements with people.
Thu, 16 Sep 10
Gene for high cholesterol in blood found
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wC0n-LUsPvY/100915105941.htm
Scientists have found a gene that causes high levels of bad cholesterol to accumulate in the blood as a result of a high-cholesterol diet.
Thu, 16 Sep 10
Simpler mathematical model for reproducing bacterial growth patterns developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/E49T9-tpG-A/100915084803.htm
The expansion of bacterial colonies is one of the classic research areas in biology. Researchers now consider a new model that uses two parameters to reproduce the growth patterns of these microorganisms.
Thu, 16 Sep 10
Only 5% of Americans engage in vigorous physical activity on any given day
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JRgGC4Xqono/100915094418.htm
On any given day, most U.S. adults report performing predominantly sedentary and light activities, according to a new study. Overall only 5.07% report any vigorous intensity activity. The most frequently reported moderate activity was food and drink preparation.
Thu, 16 Sep 10
Hydroelectric power reservoirs cleaner than previously feared, new research shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5izteRH0XhM/100915084454.htm
A new report is helping to remove the dirty image attributed to climate gas emissions from hydroelectric power reservoirs.
Thu, 16 Sep 10
Perception of emotion is culture-specific
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pKa0xEEW7XI/100915105939.htm
Want to know how a Japanese person is feeling? Pay attention to the tone of his voice, not his face. That's what other Japanese people would do, anyway. A new study examines how Dutch and Japanese people assess others' emotions and finds that Dutch people pay attention to the facial expression more than Japanese people do.
Thu, 16 Sep 10
Key mechanism behind sleep discovered: Finding holds promise for treatment of fatigue and sleep disorders
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pZCI1_T6ZHs/100914100302.htm
Researchers have discovered the mechanism by which the brain switches from a wakeful to a sleeping state. The finding clears the way for a suite of discoveries, from sleeping aids to treatments for stroke and other brain injuries.
Thu, 16 Sep 10
Outsmarting killer bacteria
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CcgmK_w6eKM/100914131004.htm
Scientists are developing a generation of antibiotics that takes the mechanism of bacterial resistance and integrates it into drugs, short-circuiting the superbugs' resistance and rendering them susceptible to treatment.
Thu, 16 Sep 10
World's last remaining tigers clustered in 6% of available habitat
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yt0VNzXPQ68/100914171323.htm
Researchers have revealed an ominous finding: most of the world's last remaining tigers -- long decimated by overhunting, logging, and wildlife trade -- are now clustered in just six percent of their available habitat.
Thu, 16 Sep 10
Type D personality associated with higher future heart risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/T_g_ua5ZWuk/100914162301.htm
Heart patients considered "chronically distressed" (Type D personality) may have a higher risk of recurrent cardiac events. Type D personality was also associated with higher risk of future psychological problems such as depression or anxiety in heart patients.
Thu, 16 Sep 10
NASA's Aqua satellite takes snapshot of Arctic Ocean sea ice
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hSFRGVS0PoM/100914124416.htm
The Arctic Ocean is covered by a dynamic layer of sea ice that grows each winter and shrinks each summer, reaching its yearly minimum size each fall. While the 2010 minimum remains to be seen, NASA's Aqua satellite captured a snapshot on Sept. 3.
Thu, 16 Sep 10
How doctors rationalize acceptance of industry gifts
http://feeds.sciencedaily.com/~r/sciencedaily/~3/z9urx2Dyalk/100914162344.htm
Despite heightened awareness about the undue influence that gifts from pharmaceutical companies can have on doctors' prescribing practices, companies continue to reward doctors for prescribing their drugs with gifts. A new study found that physicians rationalize acceptance of these gifts as a form of reward for the sacrifices they made obtaining their education.
Thu, 16 Sep 10
Frosty times for dinosaurs: Major fall in temperature 137 million years ago during Cretaceous greenhouse period, evidence shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/k_MpgEffkiI/100914074816.htm
New research sheds light on a major drop in temperature 137 million years ago, which briefly interrupted the warm, equable climate of the Cretaceous Period. Dinosaurs inhabited the polar regions during the Cretaceous greenhouse period. While marine reptiles such as pliosaurs and ichthyosaurs may have migrated with the onset of the cold snap, it is not clear how dinosaurs would have handled the colder conditions.
Thu, 16 Sep 10
Consumption of 'good salt' can reduce population blood pressure levels, research finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DmnckHXge00/100913161826.htm
An increased intake of 'good' potassium salts could contribute significantly to improving blood pressure at the population level, according to new research. The favorable effect brought about by potassium is even estimated to be comparable with the blood pressure reduction achievable by halving the intake of 'bad' sodium salts (mostly from table salt).
Thu, 16 Sep 10
Scientists reveal battery behavior at the nanoscale
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BXxSNnC30fM/100914151043.htm
As industries and consumers increasingly seek improved battery power sources, cutting-edge microscopy is providing an unprecedented perspective on how lithium-ion batteries function. A research team has developed a new type of scanning probe microscopy called electrochemical strain microscopy (ESM) to examine the movement of lithium ions through a battery's cathode material.
Thu, 16 Sep 10
Implant blood test: Shape memory alloys are biocompatible, new research shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tLK-ezFIGaY/100914074814.htm
A European team has demonstrated that modern technological materials used in a wide range of medical devices and implants are entirely biocompatible and should not health problems as has previously been suggested.
Thu, 16 Sep 10
Computer in wrapping-paper form give solar cells a makeover
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8NgJBTucPJ0/100914095919.htm
Investigators in New York are giving factory production of solar energy cells a modern makeover. Their new approach includes the use of "continuous electronic sheets," something like a computer flattened into wrapping paper.
Thu, 16 Sep 10
Women more likely than men to accept scientific consensus on global warming, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rw74IkLhYd8/100914115238.htm
Women tend to believe the scientific consensus on global warming more than men, according to a new study. The findings challenge common perceptions that men are more scientifically literate, the study's author says.
Thu, 16 Sep 10
Nanodiamonds discovered in Greenland ice sheet, contribute to evidence for cosmic impact
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ypI1wYdLoQw/100914143626.htm
Nanosize diamonds have been discovered in the Greenland ice sheet, according to a new study. The finding adds credence to the controversial hypothesis that fragments of a comet struck across North America and Europe approximately 12,900 years ago.
Thu, 16 Sep 10
New treatment for rabies advances after successful Phase 1 trial in India
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HMy1UFMXJU0/100914121501.htm
Researchers have announced that a newly completed Phase 1 study of a monoclonal antibody to rabies (RAB-1) showed positive results for the new therapy, which has the potential to save tens of thousands of lives each year in areas of the world hardest hit by rabies, where current standard treatments are often not available.
Thu, 16 Sep 10
Salmon's body language tells all: Body language can be an indicator of stress or well-being in fish
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eET-IH_Ce7I/100914074812.htm
Automatic photo analysis may make it possible to continuously monitor and interpret fish behavior. Researchers in Norway have been collaborating on finding methods of measuring the stress levels and welfare of production fish. Cameras and automatic photo analysis were used to quantify behavior. This could open up possibilities for continuous monitoring of production fish in the future.
Thu, 16 Sep 10
New focus on 'sudden death' heart disorder
http://feeds.sciencedaily.com/~r/sciencedaily/~3/u5rOoks80dI/100914115242.htm
An abrupt, fatal heart attack in a young athlete on the playing field is a tragedy destined to repeat itself over and over until more is understood about hypertrophic cardiomyopathy (HCM), a genetic disorder that is the most common cause of sudden death in young people but which affects people of all ages. So says a task force of cardiologists and cardiac biologists.
Thu, 16 Sep 10
New microfluidic chip for discriminating bacteria
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vFUJkrGpa_A/100914095924.htm
A new "on-chip" method for sorting and identifying bacteria has been created by biomedical engineers. The discovery may lead to portable devices that could be used for analyzing bacteria-infected blood, finding the causes of urethral irritation, and for screening raw milk and other foods.
Thu, 16 Sep 10
Present imperfect: Doctors in training work even when ill, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/28Ws9VjoYDo/100914162244.htm
Three out of five residents surveyed came to work while sick, possibly exposing their patients and colleagues to suboptimal performance and communicable disease, according to a new study. One out of three did so more than once. At one hospital, 100 percent of residents worked when sick. More than half of resident physicians surveyed said they didn't have time to see a doctor.
Thu, 16 Sep 10
Selfishness can sometimes help the common good, yeast study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ic1dp22Dtts/100914181819.htm
Scientists have overturned the conventional wisdom that cooperation is essential for the well-being of the whole population, finding proof that slackers can sometimes help the common good. The researchers studied populations of yeast and found that a mixture of 'co-operators' and 'cheats' grew faster than a more utopian one of only 'co-operators'.
Thu, 16 Sep 10
First US trial of bone-marrow stem cells for heart attack patients appears safe
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lkDRwuYMukg/100914115236.htm
The first randomized, placebo-controlled US clinical trial to assess the use of bone marrow-derived mononuclear cells in patients after a ST-elevation myocardial infarction (STEMI; severe heart attack) demonstrated a strong safety profile for this cell therapy, based on phase 1 results.
Thu, 16 Sep 10
Ending the oceans' 'tragedy of the commons'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/am1DzpcvG6E/100914095930.htm
Leading international marine scientists are proposing radical changes in the governance of the world's oceans to rescue them from overfishing, pollution and other human impacts. Based on a successful experiment in Chile, the researchers say a new approach to marine tenure could help to reverse the maritime "tragedy of the commons" which has led to the depletion of fish stocks worldwide.
Thu, 16 Sep 10
Bone-anchored leg prostheses improve quality of life, Swedish study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6n7OEMZWCZs/100912175746.htm
A new study from Sweden shows the results of treatment using prostheses attached to titanium implants in the bones of patients with above-the-knee amputations. It reveals that the treatment improves function and quality of life in nine out of ten patients.
Thu, 16 Sep 10
Improving crisis prediction, disaster control and damage reduction
http://feeds.sciencedaily.com/~r/sciencedaily/~3/X6X_eXAFjGQ/100914095926.htm
Earthquakes, homicide surges, magnetic storms, and the US economic recession are all kindred of a sort, according to a new theoretical framework. Researchers in the United States and Russia contend that these four types of events share a precursory development pattern that can be detected and tracked, possibly improving crisis prediction.
Thu, 16 Sep 10
Burnout associated with self-reported unprofessional conduct among medical students
http://feeds.sciencedaily.com/~r/sciencedaily/~3/04A0jooxQ3U/100914162247.htm
Medical students with higher levels of distress (burnout) were more likely to self-report unprofessional conduct related to patient care and less altruistic professional values, according to a new study.
Thu, 16 Sep 10
Adapting to darkness: How behavioral and genetic changes helped cavefish survive extreme environment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5NriNOx3vz8/100914171325.htm
Biologists have identified how changes in both behavior and genetics led to the evolution of the Mexican blind cavefish from its sighted, surface-dwelling ancestor. They identified a behavioral shift that was advantageous for feeding success in the dark, and linked it to its genetic basis in the fish's lateral line. This is the first time that a clear link has been identified between behavior, genetics, and evolution in Mexican blind cavefish.
Thu, 16 Sep 10
Benefits of healthy lifestyle factors stronger in combination
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DZwRIFHoNcQ/100914171321.htm
Individuals with a combination of healthy lifestyle factors are at significantly lower risk of total and disease-specific mortality, according to a new study.
Thu, 16 Sep 10
ARTEMIS: First Earth-Moon libration orbiter
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qx7jTrirkFY/100914124215.htm
In August 1960, NASA launched its first communications satellite, Echo 1. Fifty years later, NASA has achieved another first by placing the ARTEMIS-P1 spacecraft into a unique orbit behind the moon, but not actually orbiting the moon itself. This type of orbit, called an Earth-Moon libration orbit, relies on a precise balancing of the Sun, Earth, and Moon gravity so that a spacecraft can orbit about a virtual location rather than about a planet or moon. The diagrams below show the full ARTEMIS-P1 orbit as it flies in proximity to the moon.
Thu, 16 Sep 10
Underlying dysfunction of seemingly non-critical heart condition identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JyOdZf35oZ8/100914074605.htm
Repairing small, seemingly benign holes in a child's heart may be more clinically important than previously thought, as dysfunction could be lurking out of sight. These are the findings from a new study examining a subset of the most common form of congenital heart disease, ventricular septal defect.
Thu, 16 Sep 10
How do your crystals grow?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ad1SiUg2vUg/100914095928.htm
New research uses fluorescence correlation spectroscopy to investigate the processes at the surface of a growing crystal. This work may help to improve the crystallization of biomolecules -- an important tool in pharmaceutical research and other fields.
Thu, 16 Sep 10
Discrimination hurts, but how much? A lot, if you're a teen, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xfEc6dC7LrE/100914100304.htm
Researchers have found that adolescents from Latin American and Asian backgrounds experienced more discrimination than their peers from European backgrounds. The discrimination came not just from adolescents, but from adults as well. The level of discrimination also impacted grade point averages, and their health, including depression and distress, along with lower levels of self esteem.
Wed, 15 Sep 10
Human impacts on the deep seafloor
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0NUBbGhkfJk/100914115244.htm
Scientists have for the first time estimated the physical footprint of human activities on the deep seafloor of the North East Atlantic. The findings reveal that the area disturbed by bottom trawling commercial fishing fleets exceeds the combined physical footprint of other major human activities considered.
Wed, 15 Sep 10
Lung cancer culprit could offer target for therapy, researchers report
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8HYecqge43g/100913121701.htm
A tiny molecule that spurs the progression of non-small-cell lung cancer could become a player in fighting the disease, say researchers who published a study on how the molecule behaves in mice.
Wed, 15 Sep 10
Making cookies that are good for your heart
http://feeds.sciencedaily.com/~r/sciencedaily/~3/g2tymSLyrGc/100913141541.htm
Years of research has proven that saturated and trans fats clog arteries, make it tough for the heart to pump and are not valuable components of any diet. Unfortunately, they are contained in many foods. Now, a research team has developed a soybean which produces oil that is naturally low in saturated and trans fats.
Wed, 15 Sep 10
Androgen receptor may explain male dominance in liver cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QkDnfW08Tvw/100519143356.htm
A new study helps to explain why men get liver cancer more often than women and opens the door for a new treatment pathway, by showing a direct link between the androgen receptor, which is more active in men, and the hepatitis B virus as it relates to the deadly cancer.
Wed, 15 Sep 10
Many roads lead to superconductivity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/q4AKYbHQt14/100910101834.htm
Researchers have discovered a magnetic signature that occurs universally among all iron-based superconductors, even if the parent compounds from which the superconductors are made possess different chemical properties.
Wed, 15 Sep 10
Measuring preference for multitasking
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qk27E9NS-bg/100914095934.htm
A new study may help employers identify employees who enjoy multitasking and are less inclined to quit jobs involving multitasking. The study presents a new tool developed to measure preference for multitasking.
Wed, 15 Sep 10
'Artificial ovary' develops oocytes into mature human eggs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oFwZ4MWsiUc/100914102108.htm
Researchers have built an artificial human ovary that can grow oocytes into mature human eggs in the laboratory. That development could help preserve fertility for women facing chemotherapy or other treatments.
Wed, 15 Sep 10
Possible risk gene for schizophrenia uncovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ea--eBu_A4w/100914102110.htm
Researchers have identified a risk gene for schizophrenia, including a potentially causative mutation, using genome-wide association data-mining techniques and independent replications.
Wed, 15 Sep 10
Global fisheries research finds promise and peril: While industry contributes $240B annually, overfishing takes toll on people and revenue
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jjvJ81FKAQs/100914115246.htm
Global fisheries, a vital source of food and revenue throughout the world, contribute between $225-$240 billion per year to the worldwide economy, according to four new studies. Researchers also concluded that healthier fisheries could have prevented malnourishment in nearly 20 million people in poorer countries.
Wed, 15 Sep 10
How a normally defensive immune response can help HIV
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lf5mxc7YI8o/100519143359.htm
The findings offer important opportunities for further research both for treatment of long-term persistence of HIV in those who are infected and for prevention of infection in those who are not, according to the researchers.
Wed, 15 Sep 10
Playing snooker with atoms
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kI0HjGHkpgI/100910130601.htm
Scientists speak of sputtering when energy-rich ions hit a solid object and cause atoms to be released from its surface. The phenomenon can be exploited to apply microscopically thin coatings to glass surfaces. A research team has developed a special sputtering technique that greatly increases the efficiency of the coating process.
Wed, 15 Sep 10
Why 'scientific consensus' fails to persuade
http://feeds.sciencedaily.com/~r/sciencedaily/~3/onARNuhxfEs/100914102114.htm
A recent study sought to understand why members of the public are sharply and persistently divided on matters on which expert scientists largely agree. How would you determine whether or not a scientist seems like an "expert" on a particular matter? It is likely to depend on whether the position the scientist takes is consistent with the one believed by most people who share your cultural values.
Wed, 15 Sep 10
Chandra finds evidence for stellar cannibalism
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SB1Cg7Lc-oU/100914115234.htm
Evidence that a star has recently engulfed a companion star or a giant planet has been found using NASA's Chandra X-ray Observatory. The likely existence of such a "cannibal" star provides new insight into how stars and the planets around them may interact as they age.
Wed, 15 Sep 10
Watercress may 'turn off' breast cancer signal
http://feeds.sciencedaily.com/~r/sciencedaily/~3/O6usv2ouS9k/100914115240.htm
New research has revealed that a plant compound in watercress may have the ability to suppress breast cancer cell development by "turning off" a signal in the body and thereby starving the growing tumor of essential blood and oxygen.
Wed, 15 Sep 10
Research will help ID bodies left behind by Chilean earthquake, Pinochet regime
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iNJVe8vA-EE/100914095936.htm
New research will help medical examiners and others identify human remains of those killed during the recent earthquake in Chile, as well as the bodies of the "disappeared" who were killed during the Pinochet administration.
Wed, 15 Sep 10
Gene therapy plus chemotherapy ups odds for success in treating 'bubble boy' disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DiUTMQd_rGo/100524105403.htm
Gene therapy combined with chemotherapy may lead to immune system improvement in patients with 'bubble boy' disease, according to a new study.
Wed, 15 Sep 10
CRISPR critters: Scientists identify key enzyme in microbial immune system
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cq4FI3bmWeo/100909155650.htm
Using protein crystallography beamlines at Berkeley Lab's Advanced Light Source, a team of researchers has resolved the atomic-scale crystal structure of an enzyme called "Csy4" that plays a key role in a microbial immune system. The research provides important new clues to the fundamental role of RNA in the evolution of life.
Wed, 15 Sep 10
False memories of self-performance result from watching others' actions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EK9rhevyLWU/100914131006.htm
Did I turn off the stove, or did I just imagine it? Memory isn't always reliable. Psychological scientists have discovered all sorts of ways that false memories get created, and now there's another one for the list: watching someone else do an action can make you think you did it yourself.
Wed, 15 Sep 10
Chemicals in indoor swimming pools may increase cancer risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zHcORNJ6aXo/100913163502.htm
Swimming in indoor chlorinated pools may induce genotoxicity (DNA damage that may lead to cancer) as well as respiratory effects, but the positive health effects of swimming can be maintained by reducing pool levels of the chemicals behind these potential health risks, according to a new study.
Wed, 15 Sep 10
B vitamins slow brain atrophy in people with memory problems
http://feeds.sciencedaily.com/~r/sciencedaily/~3/20y4wScUzqY/100912213050.htm
Daily tablets of certain B vitamins can halve the rate of brain shrinkage in elderly people who suffer from mild memory problems, a new study has shown.
Wed, 15 Sep 10
How our brains get tripped up when we're anxious
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-1agpw5v-s4/100913162520.htm
A new study sheds light on the brain mechanisms that allow us to make choices and ultimately could be helpful in improving treatments for the millions of people who suffer from the effects of anxiety disorders.
Wed, 15 Sep 10
Smokeless tobacco products not a safe option, won't help smokers quit, analysis finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/f__l46gAzJM/100913162321.htm
The American Heart Association advises against smokeless tobacco products for smoking cessation -- they are not a "safe" alternative to smoking. Long-term use of smokeless tobacco products increases the odds of suffering a fatal heart attack or fatal stroke, according to analysis of several studies.
Wed, 15 Sep 10
Sorghum bran has more antioxidants than blueberries, pomegranates, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RYwEdCwUBIs/100913100449.htm
A new study has found that select varieties of sorghum bran have greater antioxidant and anti-inflammatory properties than well-known foods such as blueberries and pomegranates.
Wed, 15 Sep 10
Children and adults see the world differently, research finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dOz5zap7Ac0/100913153630.htm
Unlike adults, children are able to keep information from their senses separate and may therefore perceive the visual world differently, according to new research.
Wed, 15 Sep 10
Supernova shrapnel found in meteorite
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bj6aabGV2hI/100913164019.htm
Scientists have identified the microscopic shrapnel of a nearby star that exploded just before or during the birth of the solar system 4.5 billion years ago.
Wed, 15 Sep 10
Asthma medication may benefit patients with multiple sclerosis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7-WnH9g2BIg/100913162333.htm
Adding albuterol, a compound commonly used to treat asthma and other respiratory diseases, to an existing treatment for patients with multiple sclerosis appears to improve clinical outcomes, according to a new report.
Wed, 15 Sep 10
Wildflower ‘armors’ itself against disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/O2QuUroj0TM/100912205245.htm
An unusual wildflower that accumulates metals in its leaves has been found to use them as a kind of 'armor' against bacterial infection. Alpine pennycress is a small plant in the mustard family that grows on metal-rich soils scattered around Britain and Europe, such as the sites of former mine workings. The plant is known to accumulate zinc, nickel and cadmium to very high concentrations in its leaves, but why it should do this has remained a mystery.
Wed, 15 Sep 10
New pathway identified in Parkinson's through brain imaging
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Yz82Ky93mwI/100913153637.htm
A new study has identified a novel molecular pathway underlying Parkinson's disease and points to existing drugs which may be able to slow progression of the disease. The pathway involved proteins -- known as polyamines -- that were found to be responsible for the increase in build-up of other toxic proteins in neurons, which causes the neurons to malfunction and, eventually, die.
Wed, 15 Sep 10
Would a molecular horse trot, pace or glide across a surface? Chemists study quadrupedal molecular machines
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3d-tSGP1104/100913141539.htm
To determine how a quadrupedal molecular machine would move across a flat metal surface, chemists studied a class of molecular machines that "walk." Molecular machines can be found everywhere in nature, for example, transporting proteins through cells and aiding metabolism. To develop artificial molecular machines, however, scientists first need to understand the rules that govern mechanics at the molecular or nanometer scale.
Wed, 15 Sep 10
Success of IVF varies with season of the year, study suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1cuBilP97wc/100913182445.htm
The success of an assisted reproduction procedure may depend on the season, a new study suggests.
Wed, 15 Sep 10
New artificial skin could make prosthetic limbs and robots more sensitive
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ov12jouUVhw/100913141537.htm
Researchers have developed an ultrasensitive, highly flexible, electronic sensor that can feel a touch as light as an alighting fly. Manufactured in large sheets, the sensors could be used in artificial electronic skin for prosthetic limbs, robots, touch-screen displays, automobile safety and a range of medical applications.
Wed, 15 Sep 10
Pilot study demonstrates safety of diabetes medication for patients with Alzheimer's disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/K8Zg4b9x7Ow/100913162336.htm
A pilot study suggests the diabetes medication pioglitazone is generally well tolerated and may warrant further study as a treatment for patients with Alzheimer's disease, according to a new report.
Wed, 15 Sep 10
If the water looks and smells bad, it may be toxic
http://feeds.sciencedaily.com/~r/sciencedaily/~3/M_IgqDDmu9U/100913132332.htm
Earthy or musty odors, along with visual evidence of blue-green algae, also known as cyanobacteria, may serve as a warning that harmful cyanotoxins are present in lakes or reservoirs. In a new study of cyanobacterial blooms in Midwest lakes, taste-and-odor compounds were found almost every time cyanotoxins were found, indicating odor may serve as a warning that harmful toxins are present.
Wed, 15 Sep 10
Antiviral therapy associated with fewer recurring eye problems from herpes simplex virus
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qN8GPsgdVac/100913162514.htm
Taking oral antiviral medications following infection with the herpes simplex virus may be associated with a reduced risk of recurring eye-related manifestations of the disease, according a new report.
Wed, 15 Sep 10
Expanding threat of hypoxia in U.S. coastal waters
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fhj3AkR7-0s/100913170353.htm
A new report assesses the increasing prevalence of low-oxygen "dead zones" in U.S. coastal waters and outlines a series of research and policy steps that could help reverse the decades-long trend.
Wed, 15 Sep 10
There is more to motor imagery than mental simulation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bl52mUg07i4/100909074015.htm
The human brain is a powerful simulation machine. Sports professionals and amateurs alike are well aware of the advantages of mentally rehearsing a movement prior to its execution and it is not surprising that the phenomenon, known as motor imagery, has already been extensively investigated. However, a new study suggests that there may be more to motor imagery than previously thought. A group of neuroscientists in Italy have shown that the brain is able to invent creative new solutions in order to perform impossible actions.
Wed, 15 Sep 10
Scientists 'clone' human virus responsible for congenital malformations and other life-threatening diseases
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QsJh6TltRFc/100913111127.htm
Scientists have successfully cloned a human virus, offering new hope for the treatment of potentially life-threatening diseases. Human cytomegalovirus is a major infectious cause of congenital malformations worldwide. The virus is also known to cause life-threatening disease in transplant patients and people with HIV/AIDS.
Wed, 15 Sep 10
Childhood cancer survivors show sustained benefit from common ADHD medication
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WDv2MyosiPE/100913172410.htm
A medicine widely used to treat attention-deficit/hyperactivity disorder (ADHD) also provides long-term relief from the attention and behavior changes that affect many childhood cancer survivors, according to a multicenter trial.
Wed, 15 Sep 10
Public handwashing: More adults than ever (85 percent) observed washing hands in public restrooms
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xx8l4OsSFpg/100913111121.htm
A new observational study finds that 85 percent of adults washed their hands in public restrooms, compared with 77 percent in 2007.
Wed, 15 Sep 10
New metabolic markers may predict preeclampsia in early pregnancy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-HN591T7_hU/100913162325.htm
Researchers identified 14 new markers that could identify in early pregnancy who may be at risk of developing preeclampsia in later pregnancy. Preeclampsia is a life-threatening condition characterized by high blood pressure and high levels of protein in the urine.
Wed, 15 Sep 10
2010 was fourth warmest U.S. summer on record
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nby6JFr43IM/100913165150.htm
The contiguous United States had its fourth-warmest summer (June-August) on record, according to the latest NOAA State of the Climate report. The report also showed the August average temperature was 75.0 degrees F, which is 2.2 degrees F above the long-term (1901-2000) average. Last month's average precipitation was 2.41 inches, 0.19 inch below the 1901-2000 average.
Wed, 15 Sep 10
Opioid use to relieve pain and suffering at end of life is safe in hospital-at-home setting, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BUzrhhLWAhI/100909114125.htm
Patients who choose to spend their last days at home with specialized care and monitoring can safely be given opioids to control pain and other symptoms without reducing survival time, according to a new study.
Wed, 15 Sep 10
Sun and volcanic eruptions pace North Atlantic climate swings
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eBQ0OTE-z9A/100913080827.htm
Changes in solar intensity and volcanic eruptions act as a metronome for temperature variations in the North Atlantic climate, according to new research. Scientists studied the climate in the North Atlantic region over the past 600 years using the Bergen Climate Model and the observed temperature evolution. They point to changes in the solar intensity and explosive volcanic eruptions as important causes for climate variations in the North Atlantic during this period.
Wed, 15 Sep 10
Protein-based biomarkers in blood serum could classify individuals with Alzheimer's disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nY-JE11MSBg/100913162331.htm
An initial analysis suggests that biomarkers in blood serum can be combined with clinical information to accurately classify patients with Alzheimer's disease, according to a new study.
Wed, 15 Sep 10
Female marine snails trick amorous males
http://feeds.sciencedaily.com/~r/sciencedaily/~3/D-J_OKIKfp8/100913080823.htm
Sexual conflict is not only a human phenomenon. Scientists in Sweden have shown that females of the rough periwinkle conceal their gender identity in order to avoid excessive copulation.
Wed, 15 Sep 10
Targeted agent shows promise for chronic lymphoid leukemia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wbchyR3uit8/100913172412.htm
New research may have identified an experimental agent that targets chronic lymphocytic leukemia (CLL) and perhaps other proliferative disorders of lymphocytes. This study using tumor cells from patients shows that the small-molecule inhibitor CAL-101 directly promotes cell death in CLL cells and disrupts several external survival pathways needed for CLL cell viability and proliferation. The findings provide a rationale for developing CAL-101 as the first in a new class of CLL targeted therapies.
Wed, 15 Sep 10
The pocket projector is a reality
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pymnweqi50I/100913082525.htm
The projector of the future -- one cubic centimeter of technology that can be integrated into a portable computer or mobile telephone -- is about to take the market by storm. Many applications have already been identified, in particular in the automobile industry or the operating theater.
Wed, 15 Sep 10
Sexual health: Computer-based approaches increase knowledge, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-1UuH8tik00/100907210817.htm
Interactive computer packages are effective in improving knowledge about sexual health, according to a new study. Computer-based approaches could help to tackle problems such as sexually transmitted infections and unwanted pregnancy.
Tue, 14 Sep 10
Male maturity shaped by early nutrition; Differences between the sexes affected by environment during first six months of life
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Gr12F4Un1-E/100913153635.htm
A new study makes a strong case for nurture's role in male to female differences -- suggesting that rapid weight gain in the first six months of life predicts earlier puberty for boys. Males who experienced rapid growth as babies -- an indication that they were not nutritionally stressed -- also were taller, had more muscle and were stronger, and had higher testosterone levels as young adults.
Tue, 14 Sep 10
Repeated antibiotic use alters gut's composition of beneficial microbes, study shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sdjyCcQnZVs/100913153628.htm
Repeated use of an antibiotic that is considered generally benign, because users seldom incur obvious side effects, induces cumulative and persistent changes in the composition of the beneficial microbial species inhabiting the human gut, researchers have found.
Tue, 14 Sep 10
No dead zones observed or expected as part of BP Deepwater Horizon oil spill
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VOHB1vizAB8/100913165807.htm
A new report showed dissolved oxygen levels have dropped by about 20 percent from their long-term average in the Gulf of Mexico in areas where federal and independent scientists previously reported the presence of subsurface oil. Scientists from agencies involved in the report attribute the lower dissolved oxygen levels to microbes using oxygen to consume the oil from the BP Deepwater Horizon oil spill. These dissolved oxygen levels, measured within 60 miles of the wellhead, have stabilized and are not low enough to become "dead zones."
Tue, 14 Sep 10
Key pathway implicated in progression of childhood cancer identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UR35Zri4Z9o/100913121658.htm
A protein crucial for the immune response appears to be a key player in the progression of a devastating form of childhood leukemia called T-cell acute lymphoblastic leukemia. Suppressing the activity of the protein kills the leukemic cells, the study shows, opening a potential avenue to new drugs that could prevent progression of the disease.
Tue, 14 Sep 10
Dwarf galaxy evolution: Reionization alone is not able to stop star formation, research shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iOiS22xXkvA/100910130737.htm
New research suggests that reionization alone is not able to stop star formation in dwarf galaxies, as had been expected.
Tue, 14 Sep 10
New study reconciles conflicting data on mental aging
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EcKT_xzWKIU/100913144425.htm
A new look at tests of mental aging reveals a good news-bad news situation. The bad news is all mental abilities appear to decline with age, to varying degrees. The good news is the drops are not as steep as some research showed, according to a new study.
Tue, 14 Sep 10
Hubble harvests distant solar system objects
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0pnntP1_vlU/100913111129.htm
Beyond the orbit of Neptune reside countless icy rocks known as trans-Neptunian objects (TNOs). One of the biggest, Pluto, is classified as a dwarf planet. The region also supplies us with comets such as famous Comet Halley. Most TNOs are small and receive little sunlight, making them faint and difficult to spot. Now, astronomers using clever techniques to cull the data archives of NASA's Hubble Space Telescope have added 14 new TNOs to the catalog. Their method promises to turn up hundreds more.
Tue, 14 Sep 10
Brain stimulation can help partially paralysed stroke patients regain use of their muscles, research finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sQnP9w4ijkI/100913080829.htm
Patients who suffered a stroke down one side of their body recovered significant motor function after simple non-invasive transcranial magnetic stimulation of the brain. Researchers believe that partial paralysis is caused when one area of the brain is affected by the stroke, becoming inhibited, and the other unaffected area become over-active. The treatment restored the balance. And because the time lapse from stroke to treatment made no difference to the results, this simple technique could have important implications for long-term stroke care.
Tue, 14 Sep 10
How football playing robots have the future of artificial intelligence at their feet
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ut5c2CWb0Hg/100913080952.htm
The new Premier League season has begun and in Madrid the World Cup celebrations are barely over, yet according to researchers, the world's best players may soon be facing a new challenge from football playing robots, which their creators claim will be able to play and beat a human team. The research reveals how building robots to play football is driving the development of artificial intelligence and robotic technology which can be used for roles including search and rescue and home help.
Tue, 14 Sep 10
Genes behind arsenic in food identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wBOiBCV9PGQ/100913080954.htm
In many countries arsenic in food is a major problem. But researchers in Sweden have now identified two genes that may play a crucial role in how arsenic is stored in plants.
Tue, 14 Sep 10
New gecko species identified in West African rain forests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jIjSZRVJlOI/100601205756.htm
Using a new statistical method to compare the genes of 50 specimens of the West African forest gecko, researchers have determined that the widely distributed species is actually four distinct species that appear to have evolved over the past 100,000 years as the rain forest fragmented with increasing aridification. The finding demonstrates the wealth of biodiversity still surviving in the islands of tropical rain forest in West Africa.
Tue, 14 Sep 10
Supervised injection facilities can help people quit drugs, study shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FfsteS4RAl0/100913132330.htm
A new study has found that supervised injection facilities such as Vancouver's Insite connect clients with addiction treatment, which in turn resulted in greater likelihood of stopping injection drug use for at least six months.
Tue, 14 Sep 10
Video games lead to faster decisions that are no less accurate
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kvWtz5VK3D8/100913121656.htm
Cognitive scientists have discovered that playing action video games trains people to make the right decisions faster. The researchers found that video game players develop a heightened sensitivity to what is going on around them, and this benefit doesn't just make them better at playing video games, but improves a wide variety of general skills that can help with everyday activities like multitasking, driving, reading small print, and navigating around town.
Tue, 14 Sep 10
New insight into 'accelerated aging' disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AwyYnplLDRE/100913121604.htm
Hutchinson-Gilford Progeria Syndrome (HGPS or progeria) is a rare genetic disease that causes young children to develop symptoms associated with advanced age, such as baldness, wrinkles, osteoporosis and cardiovascular disease. Now, a study uses a mouse model to shed light on progeria, and perhaps also on the normal aging process.
Tue, 14 Sep 10
Manatee subspecies genetically confirmed, but diversity challenge looms
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xtvpaTBbo1M/100913132337.htm
The first genetic study to compare nuclear DNA of endangered Antillean manatees in Belize with Florida manatees confirmed their designation as separate subspecies. Belize's manatees, however, were found to have extremely low genetic diversity, raising questions about their long-term genetic viability.
Tue, 14 Sep 10
Liquid nitrogen most effective at removing warts, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aAobPPPb2oA/100913121600.htm
Cryotherapy with liquid nitrogen is the most effective method to remove common warts, a new study finds.
Tue, 14 Sep 10
Pole-to-pole climate research: Adaptation lessons from tiny springtails
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VaIO5VJaCYw/100607065900.htm
What can minuscule soil-dwellers teach us about nature’s adaptation to climate change? Researchers in Norway and South Africa are using springtails as model systems in order to study how different species respond when the climate changes.
Tue, 14 Sep 10
National study finds 70 percent increase in basketball-related traumatic brain injuries
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gklBGZTbcn8/100913080624.htm
A new study examined basketball-related injuries treated in emergency departments among children and adolescents between the ages of 5 and 19 from 1997 to 2007. According to the study, more than 4 million basketball-related injuries were treated in emergency departments during the 11-year study.
Mon, 13 Sep 10
Funneling solar energy: Antenna made of carbon nanotubes could make photovoltaic cells more efficient
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NUIw6xW4bO0/100912151548.htm
Using carbon nanotubes (hollow tubes of carbon atoms), chemical engineers have found a way to concentrate solar energy 100 times more than a regular photovoltaic cell. Such nanotubes could form antennas that capture and focus light energy, potentially allowing much smaller and more powerful solar arrays.
Mon, 13 Sep 10
Gene discovery could yield treatments for nearsightedness
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jrjw_RC78Nk/100912151554.htm
Myopia (nearsightedness) is the most common eye disorder in the world and becoming more common, yet little is known about its genetic underpinnings. Scientists have now uncovered a gene associated with myopia in Caucasian people from several different regions, including Dutch, British and Australian subjects.
Mon, 13 Sep 10
Emerging technologies may fuel revolutionary launcher
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qvVyMvW_PKk/100912064414.htm
As NASA studies possibilities for the next launcher to the stars, a team of engineers from Kennedy Space Center and several other field centers are looking for a system that turns a host of existing cutting-edge technologies into the next giant leap spaceward.
Mon, 13 Sep 10
Increasing selenium intake may decrease bladder cancer risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_TIhBIo9Kl4/100831134820.htm
A common mineral may provide protection against bladder cancer.
Mon, 13 Sep 10
Tiny rulers to measure nanoscale structures
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wmlLAswm7X8/100831102619.htm
Physicists have discovered that nanospheres combined with a nanorod dimer could be used to solve the problem of measurement sensitivity at the nanoscale.
Mon, 13 Sep 10
New treatment options target underlying causes of childhood obsessive-compulsive and Tourette's disorders
http://feeds.sciencedaily.com/~r/sciencedaily/~3/r2JX1o9W-po/100909091422.htm
Pediatric-onset obsessive compulsive disorder (OCD) and Tourette's disorder (TD) share similarities in their underlying genetic and environmental factors, psychiatric features, and treatment methods. Advances in understanding the neurobiological basis of these disorders and discovering new and more effective therapies are highlighted in a special issue on OCD and TD in Journal of Child and Adolescent Psychopharmacology.
Mon, 13 Sep 10
Engineers make artificial skin out of nanowires
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ci7CqXUzhj8/100912151550.htm
Engineers have developed a pressure-sensitive electronic material from semiconductor nanowires that could one day be used as an artificial skin for robots and prosthetic limbs.
Mon, 13 Sep 10
Genes tied to deadliest ovarian cancers identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AEquitmmw4s/100908171116.htm
Scientists have identified two genes whose mutations appear to be linked to ovarian clear cell carcinoma, one of the most aggressive forms of ovarian cancer. Clear cell carcinoma is generally resistant to standard therapy.
Mon, 13 Sep 10
The bright red of cardinals means less in urban areas
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Yg1Cl9Z5pIg/100831102635.htm
Normally, the brilliant red of a male cardinal signals to females that he is a high-quality mate. But that may not be true of cardinals living in urban areas, a new study suggests. Researchers found that the bright red feather coloration of male northern cardinals was less related to body condition for birds living in urban forests than it is for those in rural forests. In other words, even cardinals in relatively poor condition may appear bright red in urban areas.
Mon, 13 Sep 10
Tumor budding identified as predictor for unfavorable outcome in lung cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qLdsIntC4Z8/100901072859.htm
Lung cancer is the leading cause of cancer deaths worldwide, and the prognosis is generally poor, even if surgery is successful. Furthermore, the incidence of one type of lung cancer, adenocarcinoma, has been increasing in recent years.
Mon, 13 Sep 10
Brain uses eyes to pick up things: Unraveling the calculations
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9UjYbkgqp0E/100831073624.htm
How does your brain know where your hand has to go to pick up a cup of coffee and successfully bring this to your mouth? By converting all of the information into coordinates of the eye, according to new Dutch research. Unraveling those calculations will make it possible to more accurately control arm prostheses.
Mon, 13 Sep 10
Concussions in young athletes on the rise, especially in hockey and football players
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fl2hyc0ll90/100830094924.htm
A new study finds visits to emergency departments for concussions that occurred during organized team sports have increased dramatically over a 10-year period, and appear to be highest in ice hockey and football. The number of sports-related concussions is highest in high school-aged athletes, but the number in younger athletes is significant and rising.
Mon, 13 Sep 10
Ancient viral invasion shaped human genome
http://feeds.sciencedaily.com/~r/sciencedaily/~3/O5ZTfThkOAY/100607101652.htm
Scientists have discovered that viruses that "invaded" the human genome millions of years ago have changed the way genes get turned on and off in human embryonic stem cells.
Mon, 13 Sep 10
Physical activity can reduce the genetic predisposition to obesity by 40 percent, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CbBdIot_6JY/100831172437.htm
Although the whole population can benefit from a physically active lifestyle, in part through reduced obesity risk, a new study shows that individuals with a genetic predisposition to obesity can benefit even more.
Mon, 13 Sep 10
How disease-causing parasite gets around human innate immunity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0f0ynI3rKB4/100830152538.htm
A team of researchers has now shown, for the first time, how one species of the parasites that cause African sleeping sickness evades the human innate defenses.
Mon, 13 Sep 10
Therapeutic targets found for rare cancer in children
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iQ1n4DTAt4g/100901091945.htm
The first study of Ewing's sarcoma that screened hundreds of genes based on how they affect cell growth has identified two potential anti-cancer drug targets, according to a scientific paper.
Mon, 13 Sep 10
Using underground clues to determine past atmospheric heat
http://feeds.sciencedaily.com/~r/sciencedaily/~3/t8lrYGk0uiI/100831095138.htm
Before a global climate model can be used by scientists to predict future climate patterns, it must first successfully predict the climate of the past as known by historical records or as inferred by proxy data (for example, oxygen isotopes in ice cores and tree ring records). Because historical records are spatially and temporally scarce, many climate models rely on proxy data, which by definition introduce large amounts of error into model calibrations. Reducing these errors is of high importance to climate scientists.
Mon, 13 Sep 10
Human well-being is improving even as ecosystem services decline: Why?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/62fOFhcS5hw/100901072908.htm
Researchers writing a new article examine four possible explanations for why human well-being is increasing despite the global degradation of ecosystem services. Gains in food production, technological innovation generally, and time lags in the consequences of ecosystem degradation all find some support; observable trends suggest these factors may be limited in the future.
Mon, 13 Sep 10
Glasperlenspiel: Scientists propose new test for gravity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/s6uq9HviIHE/100901111640.htm
A new experiment proposed by physicists may allow researchers to test the effects of gravity with unprecedented precision at very short distances -- a scale at which exotic new details of gravity's behavior may be detectable.
Mon, 13 Sep 10
Long-standing mystery of protein 'quality control' mechanism solved
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oaO-fK06AqA/100912151552.htm
Scientists have solved a long-standing mystery of how cells conduct "quality control" to eliminate the toxic effects of a certain kind of error in protein production. The findings may lead to a better understanding of a host of neurodegenerative diseases.
Mon, 13 Sep 10
Structural defects precede functional decline in heart muscle
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4-MOignfyxs/100830114951.htm
The disruption of a structural component in heart muscle cells, which is associated with heart failure, appears to occur even before heart function starts to decline, according to a new study. The new findings may point to new ways to diagnose or treat heart failure.
Mon, 13 Sep 10
Lung cancer survival rates improved through use of individualized chemotherapy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9utkGbjeHns/100901072857.htm
Chemotherapy is the best broad defense against cancer recurrence after surgical resection. However, it is difficult to predict which patients will benefit from which regimen of anticancer drugs, if at all. Building on existing knowledge, a new study has analyzed the usefulness of adjuvant chemotherapy for non-small cell lung cancer based on the histoculture drug response assay.
Mon, 13 Sep 10
Dry lake bed salts promote cloud formation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qbI7RVDXNq8/100831095317.htm
One of the major uncertainties in climate modeling is the effect of aerosol particles on cloud formation. Sea salt in the air has been known to be important in cloud formation over oceans. A new study now provides the first direct measurements of clouds showing that wind-blown dust from dry lake beds (playas) can also act as cloud condensation nuclei, encouraging the formation of clouds over continents and thereby affecting climate.
Mon, 13 Sep 10
People want to be asked before sharing genetic data, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mdwsnOZokpk/100901072912.htm
People want to be informed and asked for consent before deciding whether to let researchers share their genetic information in a federal database, according to new research. The study was the first to ask research participants' opinions about the need for informed consent for sharing their own information.
Mon, 13 Sep 10
Deadly tides mean early exit for hot Jupiters
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NXcreCHzWNE/100912064227.htm
Bad news for planet hunters: most of the "hot Jupiters" that astronomers have been searching for in star clusters were likely destroyed long ago by their stars. In a new study, researchers offer this new explanation for why no transiting planets (planets that pass in front of their stars and temporarily block some of the light) have been found yet in star clusters. The researchers also predict that the planet hunting being done by the Kepler mission is more likely to succeed in younger star clusters than older ones.
Mon, 13 Sep 10
Our lungs are 'innately prone' to silicosis and related diseases, new study suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UZwoKuPdhiA/100831102627.htm
For the nearly 2 million US workers exposed to silica dust each year, a new discovery may help prevent or treat the development of chronic lung diseases related to this exposure. Scientists have now shown that the part of our immune system responsible for keeping airways clean and free of contaminants (innate immunity) can cause inflammation and symptoms of disease.
Mon, 13 Sep 10
Superwind Galaxy NGC 4666
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RNW0DZ-uFVw/100901073446.htm
The galaxy NGC 4666 takes pride of place at the centre of this new image, made in visible light with the Wide Field Imager on the MPG/ESO 2.2-metre telescope at the La Silla Observatory in Chile. NGC 4666 is a remarkable galaxy with very vigorous star formation and an unusual "superwind" of out-flowing gas. It had previously been observed in X-rays by the ESA XMM-Newton space telescope, and the image presented here was taken to allow further study of other objects detected in the earlier X-ray observations.
Mon, 13 Sep 10
Risk of surgery for Crohn's disease lower than reported in recent studies, new research suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jFdUzmL7-I0/100901072953.htm
A multi-center study of 854 children with Crohn's disease shows the 5-year cumulative risk of bowel surgery is significantly lower than reported in recent studies. The study also found that children diagnosed between ages 13 and 16 had increased risk of bowel surgery, and a common treatment started at diagnosis did not alter the risk of surgery.
Mon, 13 Sep 10
Understanding volcanism and tectonic activity in Yellowstone and the Pacific Northwest
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LQj_nJ5hEd0/100831095408.htm
During the past 65 million years, the Pacific Northwest has experienced significant tectonic and volcanic activity, including volcanism in the Yellowstone region. The origins of volcanism in the area have been debated.
Mon, 13 Sep 10
Ten minutes could prevent one-third of road deaths, Spanish study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/z7RqTd1j268/100901073401.htm
Spanish researchers have calculated the probability of dying in road accidents on the basis of the time taken for the emergency services to arrive. Their conclusions are clear: reducing the time between an accident taking place and the arrival of the emergency services from 25 to 15 minutes would cut the risk of death by one-third.
Mon, 13 Sep 10
Child's 'mental number line' affects memory for numbers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Mfwa221sBzw/100909114121.htm
As children in Western cultures grow, they learn to place numbers on a mental number line, with smaller numbers to the left and spaced further apart than the larger numbers on the right. Then the number line changes to become more linear, with small and large numbers the same distance apart. Children whose number line has made this change are better at remembering numbers, according to a new study.
Mon, 13 Sep 10
Blood signatures to diagnose infection
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ut5cLeUoV-k/100906202903.htm
Coughing and wheezing patients could someday benefit from quicker, more accurate diagnosis and treatment for respiratory infections such as flu, through a simple blood test, according to scientists.
Mon, 13 Sep 10
Anti-aphrodisiac protects young bedbugs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XlQGfyyUiC4/100908191134.htm
Male bedbugs are known to be very unfussy when it comes to mating, mounting any well-fed bug they can see -- regardless of age or gender. Researchers have discovered how immature bedbug nymphs, who would be harmed by the traumatic insemination technique practiced by the males, release alarm pheromones to deter this unwanted attention.
Mon, 13 Sep 10
Fruit fly gene study leads to new method for understanding brain function
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6vOmnyIeHgU/100910093158.htm
A team of researchers studying neurobiology in fruit flies has developed a new method for understanding brain function with potential applications in studies of human neurological diseases.
Mon, 13 Sep 10
Mapping new paths for a stressed-out Internet: Collaboration aims to create first accurate geometric map of the Internet
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fEigOOCkScc/100910093200.htm
Researchers have created the first geometric "atlas" of the Internet as part of a project to prevent our most ubiquitous form of communication from collapsing within the next decade or so.
Mon, 13 Sep 10
People learn new information more effectively when brain activity is consistent, research shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jzgwIULxgM4/100909141537.htm
People are more likely to remember specific information such as faces or words if the pattern of activity in their brain is similar each time they study that information, according to new research. The finding challenges psychologists' long-held belief that people retain information more effectively when they study it several times under different contexts and, thus, give their brains multiple cues to remember it.
Mon, 13 Sep 10
Single gene regulates motor neurons in spinal cord
http://feeds.sciencedaily.com/~r/sciencedaily/~3/djhKZqbvUnQ/100908121915.htm
In a surprising and unexpected discovery, scientists have found that a single type of gene acts as a master organizer of motor neurons in the spinal cord. The finding could help scientists develop new treatments for diseases such as Lou Gehrig's disease or spinal cord injury.
Mon, 13 Sep 10
Interrupting death messages to treat bone disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6l6cWjfR6k4/100906202857.htm
A surface molecule on bacteria that instructs bone cells to die could be the target for new treatments for bone disease, says a scientist. Blocking the death signal from bacteria could be a way of treating painful bone infections that are resistant to antibiotics, such as those caused by meticillin-resistant Staphylococcus aureus.
Mon, 13 Sep 10
Astronomer unveils the mysteries of 'Green Pea' galaxies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IHDEAxDLhVo/100910083417.htm
First discovered in 2007 by amateur stargazers, the strange so-called Green Pea galaxies have now been shown to be extraordinary and extremely compact star cities that have low amounts of complex elements after being diluted by streams of gas and strong supernova winds.
Mon, 13 Sep 10
Mexican-Americans with heart rhythm disorder have increased risk for second stroke
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bKrR4HNygEI/100909164433.htm
Mexican-American stroke survivors with atrial fibrillation had more than double the risk for a second stroke compared to non-Hispanic white survivors with the disorder, according to a new study. Strokes were more severe among these Mexican-Americans than among non-Hispanic whites; however, researchers found no major differences in death rates between the two groups. Researchers said the findings could help physicians develop strategies to prevent recurrent stroke in Mexican-Americans.
Mon, 13 Sep 10
Discovery offers hope of saving sub-Saharan crops from devastating parasites
http://feeds.sciencedaily.com/~r/sciencedaily/~3/npF8OzdwwWw/100910130605.htm
Each year, thousands of acres of crops are planted throughout Africa, Asia and Australia only to be laid to waste by a parasitic plant called Striga, also known as witchweed. It is one of the largest challenges to food security in Africa, and a team of scientists has discovered chemicals and genes that may break Striga's stranglehold.
Mon, 13 Sep 10
Public looks at synthetic biology -- cautiously
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UX0ioeob2zU/100909003704.htm
A new poll finds that two-thirds of Americans think that synthetic biology should move forward, but with more research to study its possible effects on humans and the environment, while one-third support a ban until we better understand its implications and risks. More than half of Americans believe the federal government should be involved in regulating synthetic biology.
Mon, 13 Sep 10
Carbon mapping breakthrough
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cAWeilhhwZY/100906160105.htm
By integrating satellite mapping, airborne-laser technology, and ground-based plot surveys, scientists have revealed the first high-resolution maps of carbon locked up in tropical forest vegetation and emitted by land-use practices.
Mon, 13 Sep 10
Inflammation is associated with lower intelligence and premature death
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DnIhrkd-1A8/100906163459.htm
Inflammation is associated with lower intelligence and premature death, according to scientists. “Those with low-grade inflammation performed more poorly on standardized intelligence tests, even after excluding those with signs of current illness. Inflammation also predicted an increased risk of premature death,” said the lead researcher.
Mon, 13 Sep 10
Harmful amyloid interferes with trash pickup for cells in Alzheimer's disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/O_2dGWvnxqc/100908094924.htm
Scientists have identified a way that amyloid beta, the protein that accumulates in the brains of people with Alzheimer's disease, interferes with the ability of cells to get rid of debris and have also identified a way that amyloid itself may be discarded, a new study has found.
Mon, 13 Sep 10
IV drips can be left in place, study shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NpvjeZheYjQ/100910083352.htm
Small intravenous devices (IVDs) commonly used in the hand or arm do not need to be moved routinely every 3 days. A randomized controlled trial comparing regular relocation with relocation on clinical indication found that rates of complications were the same for both regimens.
Mon, 13 Sep 10
Land-use expert brings satellite data down to Earth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MIdMcz-2yTM/100908101935.htm
By integrating remote satellite imagery with revelations from door-to-door interviews, geographers are exploring the complex conditions that give rise to a broad range of land-use challenges -- from the reforestation of Vietnam to the spread of Lyme disease in Belgium.
Mon, 13 Sep 10
Aging drug users are increasing and facing chronic physical and mental health problems
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qH1jHWVIO4s/100909074009.htm
Health and social services are facing a new challenge, as many illicit drug users get older and face chronic health problems and a reduced quality of life. UK researchers interviewed people aged 49 to 61 in contact with voluntary sector drug treatment services. The study, plus wider research, suggest that older people who continue to use problematic or illegal drugs are emerging as an important, but relatively under-researched, international population. The problem is international, with US and European figures suggesting the number of people with addiction problems will at least double by 2020.
Sat, 11 Sep 10
Flying fish glide as well as birds, researchers find
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pNhyMS9-ZUQ/100910082308.htm
How well do flying fish fly? This is the question that puzzled researchers in South Korea. Measuring aerodynamic forces on dried darkedged-wing flying fish in a wind tunnel, they discovered that flying fish glide better than insects and as well as birds. The fish also derive an aerodynamic advantage from gliding close to the water's surface to cover distances as great as 400 meters.
Sat, 11 Sep 10
Misfolded neural proteins linked to autism disorders
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CYrXb5XE-Lg/100910142751.htm
Scientists have identified misfolding and other molecular anomalies in a key brain protein associated with autism spectrum disorders.
Sat, 11 Sep 10
E. coli engineered to produce biodiesel
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MsvkhyDATzE/100903104828.htm
New research is shedding light on how to alter the genetic makeup of E. coli to produce biodiesel fuel derived from fatty acids.
Sat, 11 Sep 10
New study singles out factors linked to cognitive deficits in type 2 diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZpIOzw9bADs/100901121934.htm
Older adults with diabetes who have high blood pressure, walk slowly or lose their balance, or believe they're in bad health, are significantly more likely to have weaker memory and slower, more rigid cognitive processing than those without these problems, according to a new study.
Sat, 11 Sep 10
Yikes! Sensor measures yoctonewton forces fast
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_FCNPRHmRT8/100901111638.htm
Physicists have used a small crystal of ions (electrically charged atoms) to detect forces at the scale of yoctonewtons. Measurements of slight forces -- one yoctonewton is equivalent to the weight of a single copper atom on Earth -- can be useful in force microscopy, nanoscale science, and tests of fundamental physics theories.
Sat, 11 Sep 10
Energy drinks may give young sports teams an edge, study says
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1yi9MKI1zVY/100908094811.htm
Consuming energy drinks during team sports could help young people perform better, a new study suggests.
Sat, 11 Sep 10
Moonstruck primates: Owl monkeys need moonlight as much as a biological clock for nocturnal activity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XdPqLhgbqFI/100903210414.htm
Anthropologists have shown that environmental factors, like temperature and light, play as much of a role in the activity of traditionally nocturnal monkeys as the circadian rhythm that regulates periods of sleep and wakefulness.
Sat, 11 Sep 10
Appetite hormones may predict weight regain after dieting
http://feeds.sciencedaily.com/~r/sciencedaily/~3/B4tgJNUm-lQ/100909073911.htm
Many people have experienced the frustration that comes with regaining weight that was lost from dieting. According to a new study, the levels of appetite hormones in the body prior to dieting may serve as a predictor of weight regain after dieting.
Sat, 11 Sep 10
Research shows continued decline of Oregon's largest glacier
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Nxv1rI7JSnM/100907092346.htm
Researchers have returned to Collier Glacier for the first time in almost 20 years and found that the glacier has decreased more than 20 percent from its size in the late 1980s. The findings are consistent with glacial retreat all over the world and provide some of the critical data needed to help quantify the effects of global change on glacier retreat and associated sea level rise.
Sat, 11 Sep 10
Computer models suggest treatments for fractures that won't heal
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zHbiswvlTbE/100902173255.htm
New models, reinforced by in vivo experimentation, show why 5-10 percent of bone fractures don't heal properly, and how these cases may be treated to restart the healing process. Results of the model may benefit the aging population in which the occurrence of bone fractures is expected to rise substantially in the near future.
Sat, 11 Sep 10
Micro rheometer is latest 'lab on a chip' device
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vPf9fMVmKU4/100901111642.htm
Researchers have demonstrated a micro-miniaturized device that can make complex viscosity measurements -- critical data for a wide variety of fields dealing with things that have to flow -- on sample sizes as small as a few nanoliters.
Sat, 11 Sep 10
New CCTV technology to help prevent terror attacks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7T27TCYHB78/100909114222.htm
Numerous CCTV systems are in use in public places which have the capacity to gather large amounts of image material. For the time being, however, there are no effective ways to analyze the mass of video data automatically and recognize potential risk situations in advance. A new European research project is aimed at developing IT solutions to this end.
Sat, 11 Sep 10
Mental maturity scan tracks brain development
http://feeds.sciencedaily.com/~r/sciencedaily/~3/StxNP5jAzKs/100909141519.htm
Five minutes in a scanner can reveal how far a child's brain has come along the path from childhood to maturity and potentially shed light on a range of psychological and developmental disorders, scientists have shown.
Sat, 11 Sep 10
Drug holds promise to halt debilitating condition of diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pnvshSNumSM/100910130555.htm
A recently developed drug has the potential to stop a debilitating condition of diabetes that often leads to pain in the extremities and even amputations, researchers have found.
Sat, 11 Sep 10
A Nearby Galactic Exemplar
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wuYpA7tnl68/100908074504.htm
ESO has released a spectacular new image of NGC 300, a spiral galaxy similar to the Milky Way, and located in the nearby Sculptor Group of galaxies. Taken with the Wide Field Imager (WFI) at ESO's La Silla Observatory in Chile, this 50-hour exposure reveals the structure of the galaxy in exquisite detail. NGC 300 lies about six million light-years away and appears to be about two thirds the size of the full Moon on the sky.
Sat, 11 Sep 10
New model may simplify high-dose radiosurgery planning
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uoUqYiY3Umw/100902173301.htm
There is yet no straightforward way to determine the optimal dose level and treatment schedules for high-dose radiation therapies such as stereotactic radiation therapy, which is used to treat brain and lung cancer, or for high-dose brachytherapy for prostate and other cancers. Radiation oncology researchers may have solved the problem with a new mathematical model called the Generalized LQ (gLQ) Model that encompasses all dose levels and schedules.
Sat, 11 Sep 10
Hip dysplasia susceptibility in dogs may be underreported
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QTUCHVfy3H8/100902093454.htm
A study comparing a new method for evaluating a dog's susceptibility to hip dysplasia to the traditional American method has shown that 80 percent of dogs judged to be normal by the traditional method are actually at risk for developing osteoarthritis and hip dysplasia, according to the new method.
Sat, 11 Sep 10
Brain mechanism linked to relapse after cocaine withdrawal
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-xPHv6OKV3o/100908121913.htm
Addictive drugs are known to induce changes in the brain's reward circuits that may underlie drug craving and relapse after long periods of abstinence. Now, new research uncovers a specific neural mechanism that may be linked to persistent drug-seeking behavior and could help to guide strategies for development of new therapies for cocaine addiction.
Sat, 11 Sep 10
Caught in the act: Fireballs light up Jupiter
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nzMi0q2IKuU/100909212309.htm
Amateur astronomers working with professional astronomers have spotted two fireballs lighting up Jupiter's atmosphere this summer, marking the first time Earth-based telescopes have captured relatively small objects burning up in the atmosphere of the giant planet. The two fireballs -- which produced bright freckles on Jupiter that were visible through backyard telescopes -- occurred on June 3, 2010, and August 20, 2010, respectively.
Sat, 11 Sep 10
Function found for Alzheimer's protein
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dGrCA2oGbHw/100910152103.htm
In people with Alzheimer's, the brain becomes riddled with clumps of protein, forming what are known as amyloid plaques. Now, new research appears to have found a function for the amyloid precursor protein (APP for short) that yields the prime ingredient in those plaques.
Sat, 11 Sep 10
Neurons: Faster than thought and able to multiply
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ScICpwjcrHQ/100910093215.htm
Using computer simulations of brain-like networks, researchers from Germany and Japan have discovered why nerve cells transmit information through small electrical pulses. The process not only allows the brain to process information much faster than previously thought, but also single neurons are already able to multiply, opening the door to more complex forms of computing.
Sat, 11 Sep 10
A smart use for wisdom teeth: Making stem cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/p4ORsh22NVg/100910130603.htm
A new study shows that wisdom teeth contain a valuable reservoir of tissue for the creation of stem cells; thus, everyone might be carrying around his or her own personal stem-cell repository should he or she ever need some.
Sat, 11 Sep 10
Graphene may hold key to speeding up DNA sequencing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/K1JffgUjSec/100910142749.htm
Researchers have demonstrated that graphene can act as an artificial membrane separating two liquid reservoirs. By drilling a tiny pore just a few-nanometers in diameter, called a nanopore, in the graphene membrane, they were able to measure exchange of ions through the pore and demonstrated that a long DNA molecule can be pulled through the graphene nanopore just as a thread is pulled through the eye of a needle.
Sat, 11 Sep 10
Perceived life-threat affects mental health, Swedish research finds finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ij1EOIQmo9Q/100910083346.htm
Feeling like your life is in danger during an accident or disaster can have long-term negative effects on health -- whether or not the threat to your life was real, according to research on the experiences and mental health of Stockholm residents who survived the 2004 Tsunami in the Indian Ocean. A few simple questions to survivors early on could help health care personnel identify those in need of extra support and follow-up, according to the researcher behind the thesis.
Sat, 11 Sep 10
In attracting mates, male bowerbirds appear to rely on special optical effect
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fISkWnfMaOU/100909122801.htm
Bowerbird males are well known for making elaborate constructions, lavished with decorative objects, to impress and attract their mates. Now, researchers have identified a completely new dimension to these showy structures in great bowerbirds. The birds create a staged scene, only visible from the point of view of their female audience, by placing pebbles, bones, and shells around their courts in a very special way that can make objects (or a bowerbird male) appear larger or smaller than they really are.
Sat, 11 Sep 10
New neurological deficit behind lazy eye identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1aIsLOYNfVU/100910101836.htm
Researchers have identified a new neurological deficit behind amblyopia, or "lazy eye." Their findings shed additional light on how amblyopia results from disrupted links between the brain and normal visual processing.
Sat, 11 Sep 10
World's first transcontinental anesthesia: Researchers pioneer anesthetics via videoconferencing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eFmemEtNttw/100910093152.htm
Videoconferences may be known for putting people to sleep, but never like this. A team from McGill University's Department of Anesthesia achieved a world first on August 30, 2010, when they treated patients undergoing thyroid gland surgery in Italy remotely from Montreal, Canada.
Sat, 11 Sep 10
Researchers analyze impact of chemical BPA in dental sealants used in children
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9ujfCM3JVhg/100910093150.htm
Researchers have found that bisphenol A (BPA) released from some plastic resins used in pediatric dentistry is detectable in the saliva after placement in children's mouths.
Sat, 11 Sep 10
Tally-ho! Deep Impact spacecraft eyes comet target
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wGcQB31VbAw/100909212616.htm
On Sunday, Sept. 5, NASA's Deep Impact spacecraft beamed down the first of more than 64,000 images it's expected to take of Comet Hartley 2. The spacecraft, now on an extended mission known as EPOXI, has an appointment with the comet on Nov. 4, 2010.
Sat, 11 Sep 10
Music on prescription could help treat emotional and physical pain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/z8prvXge044/100909101557.htm
New research into how music conveys emotion could benefit the treatment of depression and the management of physical pain. Using an innovative combination of music psychology and leading-edge audio engineering the project is looking in more detail than ever before at how music conveys emotion.
Sat, 11 Sep 10
First detailed image of disc around young star
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HkUjUzvJukc/100910085010.htm
New research carried out using ESO telescopes has, for the first time, allowed astronomers to reconstruct a detailed picture of the inner disc of matter around a young star -- HD 163296. Young stars are surrounded by discs of dust and gas and scientists believe that it is in these discs that planets are born. Dusty grains in the disc stick to each other to make larger lumps that in turn also aggregate together. This growth is expected to continue until rocky bodies about the size of the Earth are formed.
Sat, 11 Sep 10
Diet-induced obesity accelerates leukemia, study shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-kvTe9CWb9U/100907131508.htm
The first study to demonstrate that obesity can directly accelerate the progression of acute lymphoblastic leukemia has been conducted.
Sat, 11 Sep 10
Conditional small RNA molecules can kill cancer cells and leave healthy cells alone
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MoU5UYa1CTQ/100906160107.htm
In a recent study, researchers demonstrated that conditional small RNA molecules can effectively kill lab-grown human brain, prostate and bone cancer cells in a mutation-specific manner. The treatment separates the "diagnosis" and "treatment" aspects of chemotherapy, so a cell is killed if -- and only if -- it is diagnosed with a mutation.
Sat, 11 Sep 10
Use of medication for insomnia or anxiety may increase mortality risk, study suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/A49U-fc252I/100909073913.htm
Taking medications to treat insomnia and anxiety increases mortality risk by 36 percent, according to a new study.
Sat, 11 Sep 10
New report seeks to improve climate forecasts
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OnGWSwT9eCE/100908160350.htm
From farmers to government officials in charge of efficiently managing Earth's precious water and energy resources, people all over the world rely on accurate short-term climate forecasts on timescales ranging from a few weeks to a few years to make more informed decisions. But today's climate forecast systems have limited ability to operate on such timescales. That's because it's difficult to realistically represent the complex interactions between Earth's ocean, atmosphere and land surface in the climate models from which forecasts are developed. A new report by the National Academy of Sciences looks at the current state of these climate predictions and recommends strategies and best practices for improving them.
Sat, 11 Sep 10
Effects of population aging have been exaggerated, new analysis suggests: More appropriate retirement ages?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/R6E5hdZy5vc/100909141523.htm
Due to increasing life-spans and improving health many populations are "aging" more slowly than conventional measures indicate. Scientists have developed new measures of aging that take disability and longevity into account. Their results give policymakers new tools to better determine the economic cost of an aging population and set more appropriate retirement ages.
Sat, 11 Sep 10
Frog skin may provide antimicrobial peptides effective against multidrug-resistant infections
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pGWM__cnm10/100908104310.htm
Antimicrobial peptides from the skin of frogs may protect against life-threatening, multidrug-resistant infections such as Pseudomonas aeruginosa, say researchers from Italy.
Sat, 11 Sep 10
Researchers expand yeast's sugary diet to include plant fiber
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tCVN9ourg2w/100909141531.htm
Yeast cells do not normally eat complex sugars or carbohydrates, only simple sugars like glucose and sucrose. Researchers have now added genes to yeast that allow it to eat more complex sugars, in particular the two-, three- and four-glucose molecules called cellodextrins. These yeast could find use in the biofuels industry, which hopes to use cellulosic plant fibers to make alcohol.
Sat, 11 Sep 10
Keeping stem cells from changing fates
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7CFL0kE6ZmM/100909114119.htm
Researchers have determined why certain stem cells are able to stay stem cells. A recent study reveals that an enzyme that changes the way DNA is packaged in cells allows specific genes to be turned on and off, thereby preventing a stem cell from becoming another cell type.
Sat, 11 Sep 10
Gene discovery holds key to growing crops in cold climates
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0mJw8Iac1KA/100909114228.htm
Fresh insight into how plants slow their growth in cold weather could help scientists develop crops suited to cooler environments.
Sat, 11 Sep 10
Brain needs to remember faces in three dimensions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eolj-dc4_Ck/100909074017.htm
In our dynamic 3-D world, we can encounter a familiar face from any angle and still recognize that face with ease, even if the person has, for example, changed his hair style. This is because our brain has used the 2-D snapshots perceived by our eyes (like a camera) to build and store a 3-D mental representation of the face, which is resilient to such changes. This is an automatic process that most of us are not consciously aware of, and which appears to be a challenge for people with a particular type of face-blindness, suggests new research.
Sat, 11 Sep 10
Critical 'traffic engineer' of the nervous system identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hDJR18d6n5Y/100908132207.htm
Scientists have identified a critical enzyme that keeps traffic flowing in the right direction in the nervous system, and the finding could eventually lead to new treatments for conditions such as Alzheimer's and Parkinson's disease.
Sat, 11 Sep 10
New method helps computer vision systems decipher outdoor scenes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WLulQP48yvI/100909114108.htm
Computer vision systems can struggle to make sense of a single image, but a new method enables computers to gain a deeper understanding of an image by reasoning about the physical constraints of the scene.
Sat, 11 Sep 10
Limiting harmful acrylamide: Lactic acid bacteria to lower risk of cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ij7OJUf6QIA/100909074011.htm
A small research-based Norwegian company has developed a method to reduce the formation of the carcinogenic compound acrylamide during industrial production of potatoes and coffee. International food giants are paying attention.
Sat, 11 Sep 10
Bionic speech recognition
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fmFylRYPhbI/100909132413.htm
Researchers in Tunisia have published details of a speech enhancement system that uses two distinct tools to reduce the noise from a recorded or sampled voice signal. In a new article, the researchers explain how a bionic wavelet transform and a recurrent neural network can be used for speech enhancement.
Sat, 11 Sep 10
Biofeedback for your brain?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UwuwIHZ9Soc/100909091116.htm
There is new evidence that people can learn to control the activity of some brain regions when they get feedback signals provided by functional magnetic resonance brain imaging (fMRI).
Fri, 10 Sep 10
Phoenix Mars Lander finds surprises about red planet's watery past
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dIXUY_Ghgjc/100909141535.htm
Liquid water has interacted with the Martian surface throughout Mars' history, measurements by NASA's Phoenix Mars Lander suggest. The findings also suggest that liquid water has primarily existed at temperatures near freezing, implying hydrothermal systems similar to Yellowstone's hot springs on Earth have been rare on Mars throughout its history.
Fri, 10 Sep 10
Strategy discovered to prevent Alzheimer's-associated traffic jams in the brain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Bz9evkmGFhM/100909172011.htm
Amyloid beta proteins, widely thought to cause Alzheimer's disease, block the transport of vital cargoes inside brain cells. Scientists have discovered that reducing the level of another protein, tau, can prevent amyloid beta from causing such traffic jams.
Fri, 10 Sep 10
Chemical engineer's work could lead to improved DNA analysis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MFvKpeKfZGo/100909132411.htm
DNA analysis is poised to experience a significant advancement thanks to the work of a chemical engineer who has discovered a way to achieve more effective separation of DNA fragments.
Fri, 10 Sep 10
Improvement in prediction of blood clots in cancer patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fcredQzzzLE/100909122805.htm
For cancer patients, who have an increased risk of developing venous thromboembolism due to a hyperactive blood coagulation system, there is now an enhanced risk model to predict their chance of developing blood clots, according to a recent study.
Fri, 10 Sep 10
Energy technologies not enough to sufficiently reduce carbon emissions, expert concludes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/k7ui84u-PqQ/100909141525.htm
Current energy technologies are not enough to reduce carbon emissions to a level needed to lower the risks associated with climate change, a physicist concludes in a new evaluation.
Fri, 10 Sep 10
Most influential tweeters of all? Depends on the topic
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mToqxyNWBMs/100909122807.htm
Tweet this, Ashton Kutcher, Lady Gaga and Britney Spears. Just because you have a ton of followers on Twitter doesn't necessarily mean you're among the most influential people in the Twitterverse, according to researchers.
Fri, 10 Sep 10
When species are about to become extinct: New research may help predict tipping point
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JBPy6YTsyEk/100908171124.htm
What if there were a way to predict when a species was about to become extinct -- in time to do something about it? Findings from a new study may eventually lead to such an outcome -- and that is only the start. Their study also has implications for understanding drastic, even catastrophic, changes in many other kinds of complex systems, from the human brain to entire ecosystems.
Fri, 10 Sep 10
Liver defect likely cause of DHA deficiency in Alzheimer's patients, UCI study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/W3Qm9rDJXwI/100908171122.htm
Researchers have discovered that markedly depleted amounts of an omega-3 fatty acid in brain tissue samples from Alzheimer's patients may be due to the liver's inability to produce the complex fat, also contained in fish-oil supplements.
Fri, 10 Sep 10
NASA satellites reveal surprising connection between beetle attacks, wildfire
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uE7xOrJCI9k/100908171130.htm
If your summer travels have taken you across the Rocky Mountains, you've probably seen large swaths of reddish trees dotting otherwise green forests. While it may look like autumn has come early to the mountains, evergreen trees don't change color with the seasons. The red trees are dying, the result of attacks by mountain pine beetles.
Fri, 10 Sep 10
Corn bred to contain beta-carotene is a good source of vitamin A, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zFaHH2ratVs/100908094918.htm
A new study has found that corn bred to contain increased levels of beta-carotene is a good source of vitamin A. The discovery gives added support to the promise of biofortified corn being developed through conventional plant breeding as an effective tool to combat vitamin A deficiency in developing countries.
Fri, 10 Sep 10
Tectonic zip: Predictable events of the February 2010 earthquake in Chile
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hmYrQfP-9FM/100909074007.htm
The complex fracture pattern created by the earthquake in Concepción (Chile) on February 27, 2010 was to a certain extent predictable. GPS observations from the years before the earthquake showed the pattern of stresses that had accumulated through the plate movements during the past 175 years in this area.
Fri, 10 Sep 10
Chronic drinking increases levels of stress hormones, leading to neurotoxicity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-XGMmDzMW_U/100907163313.htm
Alcohol consumption, withdrawal, and abstinence can all raise stress hormones in humans and animals. A review has described how stress hormones called glucocorticoids are associated with neurotoxicity during abstinence after withdrawal from alcohol dependence. Glucocorticoid receptor antagonism may therefore represent a pharmacological option for recovery.
Fri, 10 Sep 10
Extreme X-ray source suggests new class of black hole
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kZ2bLfApF3E/100908101925.htm
Astronomers have found proof to confirm the distance and brightness of the most extreme ultra-luminous X-ray source, which may herald a new type of black hole.
Fri, 10 Sep 10
Self-administered vaccine patch may protect against potentially pandemic flu viruses
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HkMXi3cepn8/100908104340.htm
A self-administered patch containing tiny microneedles may effectively deliver influenza virus-like particles through the skin and protect against potentially pandemic flu viruses such as H5N1.
Fri, 10 Sep 10
Why the biological clock? Aging reduces centromere cohesion, disrupts reproduction, biologists discover
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mUVhY_86YFA/100908142741.htm
Biologists studying human reproduction have identified what is likely the major contributing factor to the maternal age-associated increase in aneuploidy, the term for an abnormal number of chromosomes during reproductive cell division.
Fri, 10 Sep 10
These dendritic cells are fishy, but that's a good thing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WagFK7TQfO4/100908094920.htm
Scientists have identified dendritic antigen-presenting cells in zebrafish, opening the possibility that the tiny fish could become a new model for studying the complexities of the human immune system.
Fri, 10 Sep 10
Portable laser backpack revolutionizes 3-D mapping
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mMeKLMSxAB4/100908171128.htm
A portable, laser backpack for 3-D mapping is being hailed as a breakthrough technology capable of producing fast, automatic and realistic 3-D mapping of difficult interior environments.
Fri, 10 Sep 10
Adults demonstrate modified immune response after receiving massage, researchers show
http://feeds.sciencedaily.com/~r/sciencedaily/~3/J8HXephx_Xk/100908094809.htm
Researchers have reported people who undergo massage experience measurable changes in their body's immune and endocrine response. Although there have been previous, smaller studies about the health benefits of massage, the new study is believed to be the first systematic study of a larger group of healthy adults.
Fri, 10 Sep 10
Laws of physics vary throughout the universe, new study suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2IWmrjnDUdQ/100909004112.htm
A team of astrophysicists based in Australia and England has uncovered evidence that the laws of physics are different in different parts of the universe. The report describes how one of the supposed fundamental constants of Nature appears not to be constant after all. Instead, this 'magic number' known as the fine-structure constant -- 'alpha' for short -- appears to vary throughout the universe.
Fri, 10 Sep 10
New compound safely reduces plaques in mouse model of Alzheimer's disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ISrbNkoRAPs/100908121917.htm
A team of scientists has synthesized hundreds of new compounds with the potential of reducing the production of the A-beta 42 peptide, a primary component of Alzheimer's disease. In mouse models, one tested compound specifically reduced levels of A-beta 42, which is believed to be responsible for the destruction of neurons, but left other essential enzymatic activities in the brain unaffected.
Fri, 10 Sep 10
It takes less than you think to create a starling spectacular
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BiXXYP0_0XA/100908074458.htm
Hundreds of starlings flocking at dusk have become a familiar sight in towns and cities across the UK. But new research suggests that the birds react to minimal information from those nearest them to create these spectacular twilight roosting displays.
Fri, 10 Sep 10
Muscle wasting in cancer does not spare the heart
http://feeds.sciencedaily.com/~r/sciencedaily/~3/z8se3WjViLs/100908121956.htm
The wasting disease associated with some cancers that is typically seen affecting skeletal muscles can also cause significant damage to the heart, new research in mice suggests. Before now, cachexia, characterized by muscle wasting and dramatic weight loss, was believed to spare the heart. But a new study shows that the condition reduces heart function and changes the heart muscle structure in mice with colon cancer.
Fri, 10 Sep 10
Deepwater Horizon oil remains below surface, will come ashore in pulses, expert says
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xl39V1kAzf8/100908162944.htm
A coastal studies expert disagrees with published estimates that more than 75 percent of the oil from the Deepwater Horizon incident has disappeared.
Fri, 10 Sep 10
Parents report a widely prescribed antibiotic is effective for fragile X treatment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wPowZF4Ivog/100908160352.htm
One of the antibiotics most commonly prescribed to treat adolescent acne can increase attention spans and communication and decrease anxiety in patients with fragile X syndrome, according to a new study.
Fri, 10 Sep 10
Is organic farming good for wildlife? It depends on the alternative
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HEhWpBRqVdk/100906163503.htm
Even though organic methods may increase farm biodiversity, a combination of conventional farming and protected areas could sometimes be a better way to maintain food production and protect wildlife.
Fri, 10 Sep 10
Molecular gatekeeper of arthritis identified: Removal of key protein leads to initiation of disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lX-kPJ2FiEQ/100908121923.htm
Elimination of a molecular gatekeeper leads to the development of arthritis in mice, scientists report. The newly discovered gatekeeper is a protein that determines the fate -- survival or death -- of damaging cells that mistakenly attack the body's own tissues and lead to autoimmune disorders. Better understanding how arthritis develops will offer scientists an opportunity to explore new treatments for patients who have not had success with current therapies.
Fri, 10 Sep 10
Consumers will pay more for goods they can touch
http://feeds.sciencedaily.com/~r/sciencedaily/~3/T-HXYXGAvqk/100908160358.htm
We've all heard the predictions: e-commerce is going to be the death of traditional commerce; online shopping spells the end of the neighborhood brick-and-mortar store. While it's true that online commerce has had an impact on all types of retail stores, it's not time to bring out the wrecking ball quite yet, says a team of researchers.
Fri, 10 Sep 10
Researchers hear puzzling new physics from graphene quartet's quantum harmonies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uFW1whInd9w/100908132218.htm
Using a one-of-a-kind instrument, researchers have discovered an unexpected and tantalizing set of energy levels in graphene, a one-atom-thick sheet of carbon with potentially revolutionary electronic properties, when the material is exposed to extremely low temperatures and extremely high magnetic fields.
Fri, 10 Sep 10
Potential new drug for neurodegenerative disease identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/r-dllegf5s4/100908132216.htm
Scientists have discovered a small molecule that helps human cells discard disfigured proteins, such as those that may be involved in Alzheimer's disease and other neurodegenerative ailments.
Fri, 10 Sep 10
How insulin stimulates fat cells to take in glucose
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6vdITQ6FRHc/100908094916.htm
Using high-resolution microscopy, researchers have shown how insulin prompts fat cells to take in glucose in a rat model. By studying the surface of healthy, live fat cells in rats, researchers were able to understand the process by which cells take in glucose. Next, they plan to observe the fat cells of people with varying degrees of insulin sensitivity, including insulin resistance-considered a precursor to type 2 diabetes. These observations may help identify the interval when someone becomes at risk for developing diabetes.
Fri, 10 Sep 10
Cloud computing method greatly increases gene analysis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ni0cvDoOV3Y/100908101933.htm
Researchers have developed new software that greatly improves the speed at which scientists can analyze RNA sequencing data. The software, known as Myrna, uses "cloud computing," an Internet-based method of sharing computer resources. Faster, cost-effective analysis of gene expression could be a valuable tool in understanding the genetic causes of disease.
Fri, 10 Sep 10
Research on team loyalty yields new insight into 'die-hard' fandom
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VYrKs1L0VQI/100908094930.htm
There's a reason why some sports fans are referred to as "die-hards" -- even after they move away, their loyalty to their hometown team endures, according to new research.
Fri, 10 Sep 10
Woolly mammoth, woolly rhinoceros and reindeer lived on Iberian Peninsula 150,000 years ago, findings show
http://feeds.sciencedaily.com/~r/sciencedaily/~3/96ojCl9_u2I/100907081643.htm
Researchers in Spain have gathered together all findings of the woolly mammoth, the woolly rhinoceros and the reindeer in the Iberian Peninsula to show that, although in small numbers, these big mammals -- prehistoric indicators of cold climates -- already lived in this territory some 150,000 years ago.
Fri, 10 Sep 10
New class of peptides may protect against septic shock
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tir76GSKM2A/100908104411.htm
A new class of peptides may neutralize the endotoxin that causes sepsis, offering a new therapeutic strategy against an often lethal systemic bacterial infection.
Fri, 10 Sep 10
Satellite data reveal seasonal pollution changes over India
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Yqy371zPuJI/100908142739.htm
Armed with a decade's worth of satellite data, atmospheric scientists have documented some surprising trends in aerosol pollution concentration, distribution and composition over the Indian subcontinent.
Fri, 10 Sep 10
Micro-RNA determines malignancy of lung cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ySUr716ay-M/100908094912.htm
A small RNA molecule determines whether or not lung cancer cells grow invasively and metastasize, according to researchers in Germany. Moreover, they found out that the following is true also for patients with non-small cell lung cancer: The less micro-RNA is produced by tumor cells, the higher the tumor's tendency to metastasize.
Fri, 10 Sep 10
Experts question claim that Alexander the Great's half-brother is buried at Vergina
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fJj54GWzeg0/100908094813.htm
Claims that a tomb at Vergina, Greece, the ancient burial place of the Macedonian royal family in the fourth century B.C., contains the body of King Philip III Arrhidaios, half-brother of Alexander the Great, and not Philip II, Alexander's father, are called into question by researchers in the UK.
Fri, 10 Sep 10
Reading food labels, combined with exercise, can lead to weight loss, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/J5z5_XHANck/100908122040.htm
Nutritional science and food marketing has become so sophisticated in recent decades that a trip to the supermarket can require a complete nutritional re-education. The average consumer needs to be on guard against preservatives, added fat, colorings, and calories, false advertising, and sophisticated but misleading labels. Although guidelines for the information of food labels have gotten a bad rap in recent years, a new study suggests that observing them may lead to weight loss, especially for women entering their middle years.
Fri, 10 Sep 10
Quantum dice: Simple device measures quantum noise of vacuum fluctuations and generates true random numbers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/06wZHV-72G4/100909114226.htm
Behind every coincidence lies a plan -- in the world of classical physics, at least. In principle, every event, including the fall of dice or the outcome of a game of roulette, can be explained in mathematical terms. Researchers in Germany have constructed a device that works on the principle of true randomness. With the help of quantum physics, their machine generates random numbers that cannot be predicted in advance.
Fri, 10 Sep 10
Researchers give robots the capability for deceptive behavior
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eJlo_zzmPLE/100909114113.htm
Researchers have published what is believed to be the first detailed examination of robot deception. They developed algorithms that allow a robot to determine whether it should deceive and designed techniques that help the robot select the best deceptive strategy to avoid getting caught.
Fri, 10 Sep 10
Diagnostic errors 'greatest threat to patient safety in hospitals,' claims senior UK doctor
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HXFPvGyJllk/100909193404.htm
Diagnostic errors are the most important causes of avoidable harm to patients in hospitals, warns a senior doctor in the UK.
Fri, 10 Sep 10
Basic physical capability can predict mortality in later life
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5DlN-lcskSw/100909193401.htm
People who are better at simple physical acts such as gripping, walking, rising from a chair and balancing on one leg are more likely to live longer, according to a new study.
Fri, 10 Sep 10
European Union could create incentive for new drug treatments, experts propose
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ouS-g4rPVv4/100909193359.htm
Drug companies may be more willing to develop treatments for neglected diseases including malaria, tuberculosis and leishmanaiasis if the European Union would adopt a "priority review voucher" reward system, according to a U.S. business professor and a Spanish policy expert.
Fri, 10 Sep 10
'Tractor beam' one step closer to reality
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JMWBpnCg33c/100909173132.htm
Researchers in Australia have developed the ability to move particles over large distances, using a specially designed laser beam.
Thu, 9 Sep 10
Previously known as animal-only pigment, bilirubin now confirmed in Bird of Paradise flower
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1Fw9BfiiVAI/100908160356.htm
Researchers have identified bilirubin in the popular Bird of Paradise plant. The breakthrough study provides new insights into color production in this iconic tropical plant.
Thu, 9 Sep 10
Insulin may reduce several inflammatory factors induced by bacterial infection
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DX1H180wXf4/100908160354.htm
Treating intensive care patients who develop life-threatening bacterial infections, or septicemia, with insulin potentially could reduce their chances of succumbing to the infection, if results of a new preliminary study can be replicated in a larger study.
Thu, 9 Sep 10
Structure for three intrinsically disordered proteins determined
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9PnpaUTcuko/100908121907.htm
A research team has determined the structure for three proteins in a class known as intrinsically disordered proteins. The findings are important because they show how these proteins fold with the regulator protein phosphatase-1, which must happen for biological instructions to be passed along.
Thu, 9 Sep 10
Novel sensing mechanism discovered in dendritic cells to increase immune response to HIV
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8rnJCkgfrqw/100908132210.htm
Dendritic cells are the grand sentinels of the immune system, standing guard 24/7 to detect foreign invaders such as viruses and bacteria, and bring news of the invasion to other immune cells to marshal an attack. These sentinels, however, nearly always fail to respond adequately to HIV, the virus causing AIDS. Now scientists have discovered a sensor in dendritic cells that recognizes HIV, spurring a more potent immune response by the sentinels to the virus.
Thu, 9 Sep 10
Intelligent Battery project opens new ground in energy storage applications
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9BhOuDZfiwY/100908142754.htm
Integrated electronics, interoperability between battery and charger, intuitive data interfaces and a clever new design concept are part of a recent 'intelligent battery' project undertaken by researchers in Europe.
Thu, 9 Sep 10
Does the impact of psychological trauma cross generations?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/F0xvbw1yHcU/100908102058.htm
In groups with high rates of posttraumatic stress disorder (PTSD), such as the survivors of the Nazi Death Camps, the adjustment problems of their children, the so-called "Second Generation", have received attention by researchers. Studies suggested that some symptoms or personality traits associated with PTSD may be more common in the Second Generation than the general population. It has been assumed that these trans-generational effects reflected the impact of PTSD upon the parent-child relationship rather than a trait passed biologically from parent to child.
Thu, 9 Sep 10
New clue to how last ice age ended
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Fhf06FJQpks/100908132214.htm
In addition to Antarctica, New Zealand was warming at the end of the last ice age, indicating that the deep freeze up north, called the Younger Dryas for the white flower that grows near glaciers, bypassed much of the southern hemisphere, according to new research.
Thu, 9 Sep 10
New gene for memory identified in fruit fly; May shed light on human neurological disorders
http://feeds.sciencedaily.com/~r/sciencedaily/~3/j4u0Uf5Rjyk/100908121925.htm
Scientists have identified a new gene that is required for memory formation in Drosophila, the common fruit fly. The gene may have similar functions in humans, shedding light on neurological disorders such as Alzheimer's disease or human learning disabilities.
Thu, 9 Sep 10
Twins are intriguing research subjects for biometircs researchers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/82zLI8iPyb4/100908160345.htm
Researchers are examining how iris discrimination performs in twins to confirm prior claims that biometrics is capable of differentiating between twins.
Thu, 9 Sep 10
Why chromosomes never tie their shoelaces
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wJMLVaMWfa4/100908132212.htm
Researchers shed light on a paradox that has puzzled biologists since the discovery of telomeres, the protective tips of chromosomes: while broken chromosome ends generated by DNA damage (such as radiation or cigarette smoke) are quickly joined together, telomeres are never tied to each other, thus allowing for the correct segregation of the genetic material.
Thu, 9 Sep 10
Forcing mismatched elements together could yield better solar cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pJkhCIzusGM/100908162942.htm
In what could be a step toward higher efficiency solar cells, researchers have invalidated the most commonly used model to explain the behavior of a unique class of materials called highly mismatched alloys.
Thu, 9 Sep 10
It's good to gossip -- but be nice!
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WX4BaSVlxlA/100908074502.htm
Gossipers feel more supported and positive gossip -- praising somebody -- may lead to a short-term boost in gossipers' self-esteem, according to new research.
Thu, 9 Sep 10
Brain cells -- not lack of willpower -- determine obesity, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LYpDNtZThcc/100908094807.htm
An international team of scientists has discovered the reason why some people who eat a high-fat diet remain slim, yet others pile on the weight. The study found that a high-fat diet causes brain cells to become insulated from the body preventing vital signals, which tell the body to stop eating and to burn energy, from reaching the brain efficiently.
Thu, 9 Sep 10
Scientists make leap forward in early detection for Alzheimer's and cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YIjAX011efo/100908094800.htm
Scientists have developed a new strategy for quicker and more precise detection of biomarkers -- proteins which indicate disease. The work could pave the way for new tools to detect early stages of Alzheimer's and cancer at the molecular level.
Thu, 9 Sep 10
Eastern North Pacific basking shark a 'species of concern'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FJ71CiBdU04/100908094805.htm
NOAA's Fisheries Service has designated the eastern North Pacific basking shark, a "species of concern" because it has suffered a dramatic decline in population despite decreasing fishing pressure. The label "species of concern" may be given to a species when there are concerns regarding the population status.
Thu, 9 Sep 10
Questioning the safety of certain 'healthful' plant-based antioxidants
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JU-KLCjbMlI/100908111457.htm
Scientists are calling for more research on the possibility that some supposedly healthful plant-based antioxidants -- including those renowned for their apparent ability to prevent cancer -- may actually aggravate or even cause cancer in some individuals. Their recommendation follows a study in which two such antioxidants -- quercetin and ferulic acid -- appeared to aggravate kidney cancer in severely diabetic laboratory rats.
Thu, 9 Sep 10
Nano-architectured aluminum has steely strength
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qYeAlEhF1sg/100908101929.htm
Scientists have figured out a way to make an aluminum alloy, or a mixture of aluminum and other elements, just as strong as steel.
Thu, 9 Sep 10
Unusual feed supplement could ease gassy cows, reduce their greenhouse gas emissions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/e2wmhGSmaOs/100907113135.htm
Cow belches, a major source of greenhouse gases, could be decreased by an unusual feed supplement developed by a dairy scientist.
Thu, 9 Sep 10
A new role for insulin in cell survival, cell metabolism and stress response
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mZvQ7Ef3h0E/100907123736.htm
Researchers have discovered a novel way in which insulin affects cell metabolism and cell survival. Surprisingly the insulin signaling pathway, which is involved in aging, diabetes and stress response, is active at a deeper level of cell activity than scientists expected.
Thu, 9 Sep 10
Scientists create new process to 'program' cancer cell death
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KtkES7RPniE/100907104057.htm
Researchers have engineered a fundamentally new approach to killing cancer cells. The process uses small RNA molecules that can be programmed to attack only specific cancer cells; then, by changing shape, those molecules cause the cancer cells to self-destruct.
Thu, 9 Sep 10
At least 1 in 10 athletes injured during 2010 Winter Olympics, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/N5jQPd9vy0k/100907104039.htm
At least one in 10 athletes sustained an injury and a further one in 14 fell ill during the 2010 Winter Olympics, held in Canada, new research reveals.
Thu, 9 Sep 10
Golf: Evidence of how 'loading the hips' improves golf drives
http://feeds.sciencedaily.com/~r/sciencedaily/~3/E6km_XRsZZM/100907071427.htm
It’s all in the hips. New research provides concrete evidence of how loading the hips improves the power and length of a golf drive.
Thu, 9 Sep 10
Low-income neighborhoods experience far more injuries than high-income areas, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/05OWMtd_sNA/100907113133.htm
Penetrating injury rates were more than 20 times higher for persons living in the lowest income neighborhoods compared with those living in the highest income neighborhoods, according to a new study.
Thu, 9 Sep 10
Fetal exposure to radiation and the risk of childhood cancer: What is the likelihood of a risk?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jEEGH3Gc1MA/100907171632.htm
A new study aims to evaluate the possibility that exposure of a fetus to computed tomography or radionuclide imaging performed during pregnancy might increase subsequent risk of childhood cancer.
Thu, 9 Sep 10
Ritalin improves brain function, task performance in cocaine abusers, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/54SuKwwqbh4/100907103611.htm
A brain-scanning study reveals that an oral dose of methylphenidate, commonly known as Ritalin, improves impaired brain function and enhances cognitive performance in people who are addicted to cocaine. The study suggests that methylphenidate, combined with cognitive interventions, may have a role in facilitating recovery from drug addiction.
Thu, 9 Sep 10
New robotic head and neck cancer surgery preserves speech, without scarring, study shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zzkarTxpu3g/100907113137.htm
An incisionless robotic surgical procedure is offering patients a new option to remove certain head and neck cancer tumors without visible scarring, while preserving speech and the ability to eat. Unlike traditional surgical approaches to head and neck cancer, TORS patients can return to their normal lives a few days after surgery without significant pain and disfigurement.
Thu, 9 Sep 10
Designing your own workspace improves health, happiness and productivity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Tn6INRITRIM/100907104035.htm
Employees who have control over the design and layout of their workspace are not only happier and healthier -- they're also up to 32 percent more productive, according to new research.
Thu, 9 Sep 10
Excessive drinking may lead to poor brain health via obesity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3k7jdCVV_dQ/100907163310.htm
Alcohol abuse and dependence are often associated with a high body mass index (BMI). A new study shows that alcohol-related brain injury may result from a complicated fusion of hazardous drinking, chronic cigarette smoking, and even elevated BMI.
Thu, 9 Sep 10
Regular statin use is associated with a reduced risk of developing rheumatoid arthritis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZrjsojQQR70/100907171634.htm
There is an association between taking statins (lipid lowering drugs), and reduced risk of developing the chronic inflammatory disease, rheumatoid arthritis.
Thu, 9 Sep 10
A missing link from obesity to infertility: Researchers unravel clues to infertility among obese women
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_bUGm8HZOfg/100907123738.htm
Obese women have a well-known risk for infertility, but a new study has unraveled what investigators there believe is the mechanism that accounts for the risk.
Thu, 9 Sep 10
An important genetic cardiovascular risk factor explained
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IHAFNN_-6Jk/100907123731.htm
New findings appear to explain why people who carry specific and common versions of a single gene are more likely to have high cholesterol and to suffer a heart attack. Studies in mice show that the gene, known as sortilin, controls the release of LDL (a.k.a. "bad") cholesterol from the liver into the bloodstream.
Thu, 9 Sep 10
Fungal threat to archived film
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SLgmtaTnp_Q/100907210823.htm
Microbes could be threatening our cultural heritage by degrading historic cinematographic film and even preventing some valuable footage to be archived at all. New research shows how fungal growth on cinema film can not only lead to deterioration of the film but may also pose a risk to the archivist.
Thu, 9 Sep 10
Addressing negative thoughts most effective in fighting loneliness
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lOpkeRggchA/100907171640.htm
Changing how a person perceives and thinks about others was the most effective intervention for loneliness, a sweeping analysis of previous research has determined. The findings may help physicians and psychologists develop better treatments for loneliness, a known risk factor for heart disease and other health problems.
Thu, 9 Sep 10
Is hand washing enough to stop the spread of disease?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6DSMLcNbDv4/100907071353.htm
Not drying your hands thoroughly after washing them, could increase the spread of bacteria and rubbing your hands whilst using a conventional electric hand dryer could be a contributing factor. Frequently people give up drying their hands and wipe them on their clothes instead, but hand-hygiene is a key part of infection control and drying hands after washing is a very important part of the process. A new study looks at different methods of hand drying, and their effect on transfer of bacteria from the hands to other surfaces.
Thu, 9 Sep 10
Chemical for keeping human pluripotent stem cells alive identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gPzLoC3tPIA/100907113139.htm
Researchers have found that a chemically synthesized compound, blebbistatin, can help prevent cell death in human pluripotent stem cells. These cells are of interest to stem cell scientists working on finding therapies for spinal cord injuries, Parkinson's disease, burns, heart disease, diabetes, arthritis, and other ailments. Another advantage of using blebbistatin, say the researchers, is that no human- or animal-derived materials is needed for coating the culture surfaces.
Thu, 9 Sep 10
Wrist splints in children as effective as casts, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lnDU1jqc-bk/100907123733.htm
In children with wrist fractures, a splint is as effective as a cast and provides greater comfort and easier hygiene, a new study finds.
Thu, 9 Sep 10
GOCE gravity mission back in action
http://feeds.sciencedaily.com/~r/sciencedaily/~3/C9VZXn73n4g/100907071355.htm
ESA’s GOCE gravity mission has recovered from a glitch that prevented the satellite from sending its flow of scientific data to the ground. News of the recovery comes earlier than expected, thanks to the fervent efforts of a team of experts.
Thu, 9 Sep 10
Parents at highest risk for depression in the first year after child's birth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iumwZELBmY4/100906203044.htm
More than one-third of mothers and about one-fifth of fathers in the United Kingdom appear to experience an episode of depression between their child's birth and 12th year of age, with the highest rates in the first year after birth, according to a new article.
Thu, 9 Sep 10
Irrigation's cooling effects may mask warming in some regions -- for now
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kv_AzMiuORk/100907171644.htm
Expanded irrigation has made it possible to feed the world's growing billions -- and it may also temporarily be counteracting the effects of climate change in some regions, say scientists. But some sources of irrigation water are projected to dry up in coming decades and when they do, people may face the double whammy of food shortages and higher temperatures. A new study pinpoints where the trouble spots may be.
Thu, 9 Sep 10
Smoking damages men's sperm and also the numbers of germ and somatic cells in developing embryos
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yV4hFAW6cx0/100907210829.htm
Two new studies have shed more light on how smoking may damage fertility, and give further weight to advice that mothers and fathers-to-be should stop smoking before attempting to conceive. The first shows that a mother's smoking reduces the numbers of germ and somatic cells in the testes of developing embryos; the second study shows that men's smoking affects the levels of two proteins, protamines, that are crucial for the correct formation of their sperm.
Thu, 9 Sep 10
Satellite navigation steers unmanned micro-planes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/waZEQVYj1VA/100901080052.htm
An unmanned aircraft system guided by satnav has been developed within ESA's Business Incubation Centre to provide rapid monitoring of land areas and disaster zones. The planes have already helped Spanish farmers in Andalusia to fight land erosion.
Thu, 9 Sep 10
New light on the mechanism of Parkinson’s disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IH-hOt0d_H0/100901073407.htm
A significant number of Parkinson’s disease patients have a mutation of the enzyme Leucine-Rich Repeat Protein Kinase 2 (LRRK2, also known as dardarin). However, little is understood about how it is regulated or functions. In a new paper, researchers demonstrate that a family of proteins, the 14-3-3 proteins, interact with LRRK2.
Thu, 9 Sep 10
Potomac River: 10-fold increase in native submerged vegetation reflects improved water quality
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tMTZlmyFUpA/100907123744.htm
The Potomac River is showing multiple benefits from restoration efforts. Reduced nutrients and improved water clarity have increased the abundance and diversity of submerged aquatic vegetation, according to an 18-year field study.
Thu, 9 Sep 10
Bipolar disorder does not increase risk of violent crime, Swedish study suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/awyW8nQACyQ/100907103613.htm
A new study from Sweden suggests that bipolar disorder -- or manic-depressive disorder -- does not increase the risk of committing violent crime. Instead, the over-representation of individuals with bipolar disorder in violent crime statistics is almost entirely attributable to concurrent substance abuse.
Wed, 8 Sep 10
Can we spot volcanoes on alien worlds? Astronomers say yes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zjWteT-Bf_E/100907113048.htm
Now that astronomers are finding rocky worlds orbiting distant stars, they're asking the next logical questions: do any of those worlds have volcanoes? And if so, could we detect them? Work by theorists suggests that the answer to the latter is a qualified "yes."
Wed, 8 Sep 10
Short sleepers at higher risk of type 2 diabetes and heart disease, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HrQNI2oh2To/100907104248.htm
People who sleep less than six hours a night may be three times more likely to develop a condition which leads to diabetes and heart disease, according to researchers.
Wed, 8 Sep 10
What can a New Zealand reptile tell us about false teeth?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MvHQWy1zoLo/100907071351.htm
Using a moving 3-D computer model based on the skull and teeth of a New Zealand reptile called tuatara, researchers have revealed how damage to dental implants and jaw joints may be prevented by sophisticated interplay between our jaws, muscles and brain.
Wed, 8 Sep 10
Multivitamin use doesn't impact colon cancer outcomes, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RoLcqoVjlZE/100907113042.htm
Patients with colon cancer who used multivitamins during and after being treated with post-surgical chemotherapy did not reduce the risk of the cancer returning or their dying from it, according to researchers. In a study of 1,038 patients with stage III colon cancer, the researchers found that while multivitamin use had no beneficial effect on patients' outcomes, it also did not have a detrimental effect.
Wed, 8 Sep 10
Gambling on breast scans: Monte Carlo analysis could help reduce number of cancers missed by mammography
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hqbCyEKgY4w/100907092344.htm
A mathematical tool known as a Monte Carlo analysis could help improve the way X-rays are used for mammography and reduce the number of breast cancers missed by the technique as well as avoiding false positives, according to new research.
Wed, 8 Sep 10
Having a male co-twin improves mental rotation performance in females
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TpnK4IucZZE/100907113046.htm
Having a sibling, especially a twin, impacts your life. Your twin may be your best friend or your biggest rival, but throughout life you influence each other. However, a recent study shows that having an opposite-sex twin may impact you even before you are born: females with a male co-twin score higher on mental rotation task than females with a female co-twin.
Wed, 8 Sep 10
The brain speaks: Scientists decode words from brain signals
http://feeds.sciencedaily.com/~r/sciencedaily/~3/imB24rNmJF4/100907071249.htm
In an early step toward letting severely paralyzed people speak with their thoughts, researchers translated brain signals into words using two grids of 16 microelectrodes implanted beneath the skull but atop the brain.
Wed, 8 Sep 10
Short nighttime sleep duration among infants, young children associated with obesity in later life
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0VnNC6jvDnU/100906203042.htm
Insufficient amounts of nighttime sleep among infants and preschool-aged children may be a significant risk factor for developing childhood obesity, according to a new article. Additionally, napping does not appear to be an adequate substitute for nighttime sleep in terms of preventing obesity.
Wed, 8 Sep 10
Imaging reveals key metabolic factors of cannibalistic bacteria
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kCDDAThL6FA/100903092513.htm
Researchers have revealed new details about how cannibalistic bacteria identify peers suitable for consumption. The work, which employed imaging mass spectrometry, is a first step toward a broader effort to map all signaling molecules between organisms.
Wed, 8 Sep 10
First Irish genome sequenced
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8pX1k-hz6zQ/100907071357.htm
The first entire genome of an Irish individual has been sequenced. The sequence provides insight into the evolutionary history of this distinct lineage.
Wed, 8 Sep 10
Critically endangered whales may be fleeing Russian oil and gas boom, observers fear
http://feeds.sciencedaily.com/~r/sciencedaily/~3/K3rAU71etwc/100907092342.htm
Russian oil and gas company Rosneft is conducting oil and gas exploration work that may have caused the critically endangered western gray whale to flee its main feeding ground. Tests and offshore installment of equipment by Rosneft for a major seismic survey began in late August, despite repeated calls from 12 governments, NGOs, scientists and the public to postpone the survey because of potential risks to the whales.
Wed, 8 Sep 10
Radiologists identify and treat teenage self-injury
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ACLs9byGcD8/100907071237.htm
Using ultrasound and a minimally invasive procedure, radiologists can identify and treat patients who engage in a disturbing self-injury behavior known as self-embedding, according to a new study.
Wed, 8 Sep 10
Compounds in non-stick cookware may be associated with elevated cholesterol in children and teens
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8IfWLmG0mcY/100906203040.htm
Children and teens with higher blood levels of chemicals used in the production of non-stick cookware and waterproof fabrics appear more likely to have elevated total and LDL cholesterol levels, according to a new article.
Wed, 8 Sep 10
Insect brains are rich stores of new antibiotics
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Qtl0YHvEFLo/100906202901.htm
Cockroaches could be more of a health benefit than a health hazard, according to scientists who have discovered powerful antibiotic properties in the brains of cockroaches and locusts.
Wed, 8 Sep 10
Discovery of mixer cells: Mixer cells relax tissue tension during embryogenesis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LjKdAzr43m4/100609094138.htm
Researchers have recently identified cells that surprisingly change identity during embryogenesis in the Drosophila. By studying these "mixer cells" in a healing model, the scientists demonstrated that they helped to relax tissue tension, allowing perfect intercalation of the epidermis.
Wed, 8 Sep 10
Less is more: Teens who sleep less eat more fatty foods and snacks, study shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dn8x22wOZX0/100901072854.htm
Teens who slept less than eight hours on weeknights consumed 2.2 percent more calories from fats and 3 percent fewer calories from carbs than teens who slept eight hours or more, according to new research. In secondary analyses stratified by sex, the results were significant among girls but not boys. Also, for each one-hour increase in sleep duration, the odds of consuming a high amount of calories from snacks decreased by an average of 21 percent.
Wed, 8 Sep 10
Hallucinogen can safely ease anxiety in advanced-stage cancer patients, study suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iOYSJbB0S_w/100906202905.htm
In the first human study of its kind to be published in more than 35 years, researchers found psilocybin, an hallucinogen which occurs naturally in "magic mushrooms," can safely improve the moods of patients with advanced-stage cancer and anxiety.
Wed, 8 Sep 10
Visual pattern preference may be indicator of autism in toddlers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8LENTYbJEHs/100906202909.htm
Using eye-tracking methods, researchers have shown that toddlers with autism spend significantly more time visually examining dynamic geometric patterns than they do looking at social images -- a viewing pattern not found in either typical or developmentally delayed toddlers.
Wed, 8 Sep 10
Memory problems more common in men?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/D_iUbfzA0ko/100906202854.htm
A new study shows that mild cognitive impairment may affect more men than women.
Wed, 8 Sep 10
Cells can eat parts of themselves, with help from one protein
http://feeds.sciencedaily.com/~r/sciencedaily/~3/s4Dxj3ZlcpI/100906141215.htm
Like some people, cells eat when they are under pressure -- but they consume parts of themselves. A multi-function protein helps control this form of cannibalism, according to a new article.
Wed, 8 Sep 10
What's causing life-threatening blood clots in brain surgery patients?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cV84bl-lV2w/100903210411.htm
One of the most severe complications of brain surgery is a pulmonary embolism. But a new study suggests that screening methods used to access the risk of pulmonary embolisms may fall short.
Wed, 8 Sep 10
Synthetic eye prosthesis: Plastic artificial cornea implants may offer hope for blind patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VtE0TSXOOWk/100608033028.htm
Donor corneas are a rarity, but a newly developed implant made of plastic may soon offer patients the chance to see again.
Wed, 8 Sep 10
Study examines association between urban living and psychotic disorders
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aOEzSNbgMQ0/100906203036.htm
The association between psychotic disorders and living in urban areas appears to be a reflection of increased social fragmentation present within cities, according to a new article.
Wed, 8 Sep 10
Fears of a decline in bee pollination confirmed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/d9cBPblgVII/100905231237.htm
Widespread reports of a decline in the population of bees and other flower-visiting animals have aroused fear and speculation that pollination is also likely on the decline. A recent study provides the first long-term evidence of a downward trend in pollination, while also pointing to climate change as a possible contributor.
Wed, 8 Sep 10
Scientists begin to unravel causes of mysterious skin disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7G3-PL6hCew/100607111548.htm
Vitiligo -- a complex disease that typically causes patches of white skin on the face, neck and extremities, which pop star Michael Jackson may have experienced -- is associated with slight variations in genes that play a role in the body's natural defenses. Multiple cellular pathways may contribute to the onset and progression of vitiligo, which makes fully understanding the disease complicated, but it also gives scientists a variety of starting points to begin developing therapies.
Wed, 8 Sep 10
Chronic Lyme disease: How often is it diagnosed and treated?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MK6qT402j4w/100902073502.htm
The existence of chronic Lyme disease is an issue of sharp debate within the medical community. Many doctors are concerned with the potential dangers associated with the prolonged and intensive use of oral and intravenous antibiotics (the recommended treatment for chronic Lyme disease), such as blood clots and life threatening infections. A new study attempts to determine how often chronic Lyme disease is actually being diagnosed and treated.
Wed, 8 Sep 10
Big bang was followed by chaos, mathematical analysis shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EVLcnerVRqI/100907171642.htm
Seven years ago, a physicist conjectured that the expansion of the universe at the time of the big bang was highly chaotic. Now he and a colleague have proven it using rigorous mathematical arguments. Their study reports not only that chaos is absolute but also the mathematical tools that can be used to detect it. Applied to the most accepted model for the universe's evolution, these tools demonstrate the early universe was chaotic.
Wed, 8 Sep 10
Turkey genome sequenced more than 90 percent, including sex chromosomes 'Z' and 'W'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1XIm8fV1Vqg/100907171636.htm
More than 90 percent of the domesticated turkey genome has been sequenced and assembled. Thousands of genes previously unknown to avian scientists have been described. Also of interest are the sequences of the sex chromosomes "Z" and "W," which were poorly covered in the past.
Wed, 8 Sep 10
Termites foretell climate change in Africa's savannas
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vzomhiLmDRM/100907113038.htm
Using sophisticated airborne imaging and structural analysis, scientists mapped more than 40,000 termite mounds over 192 square miles in the African savanna. They found that their size and distribution is linked to vegetation and landscape patterns associated with annual rainfall. The results reveal how the savanna terrain has evolved and show how termite mounds can be used to predict ecological shifts from climate change.
Wed, 8 Sep 10
Microbial breakthrough impacts health, agriculture, biofuels
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tpoTIr5F5kU/100907163529.htm
For the first time ever, researchers have discovered how microbes break down hemicellulose plant matter into simple sugars using a cow rumen bacterium as a model.
Wed, 8 Sep 10
Computer-based video analysis boosts data gathering in behavioral studies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vEbl7755LZc/100907163527.htm
Scientists have developed a computer-based system that can learn how to identify behaviors of interest and then analyze many hours of video.
Wed, 8 Sep 10
Restoring coastal wetlands? Check the soil
http://feeds.sciencedaily.com/~r/sciencedaily/~3/T5qjXI67r0M/100907163525.htm
Researchers use soil moisture and salinity of porewater combined with other data to develop tools for restoring coastal wetlands.
Wed, 8 Sep 10
Personality predicts cheating more than academic struggles, study shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/o4p-YY4prt4/100907163523.htm
Students who cheat in high school and college are highly likely to fit the profile for subclinical psychopathy -- a personality disorder defined by erratic lifestyle, manipulation, callousness and antisocial tendencies, according to new research. These problematic students cheat because they feel entitled and disregard morality, the study found.
Wed, 8 Sep 10
Teasing about weight can affect pre-teens profoundly, study suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KmoaP2mubPM/100907163521.htm
Schoolyard taunts of any type can potentially damage a child's sense of self-confidence. But a new study suggests that a particular kind of teasing -- about weight -- can have distinctive and significant effects on how pre-teens perceive their own bodies.
Wed, 8 Sep 10
Gene set that shows which patients benefit from chemo after surgery identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WC5D4KXKr6g/100907163519.htm
Lung cancer researchers have identified a genetic signature that can help doctors determine which patients with early-stage non-small cell lung cancer are at high risk for developing disease recurrence and therefore may benefit from chemotherapy after surgery ("adjuvant chemotherapy").
Wed, 8 Sep 10
Quality measurement programs could shortchange physicians caring for at-risk patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/P7VWqIFtqCQ/100907163319.htm
Evaluating the quality of care delivered by individual physicians without accounting for such factors as their patients' socioeconomic status or insurance coverage risks undervaluing the work of those caring for a higher proportion of vulnerable patients.
Wed, 8 Sep 10
Higher education predicts better cardiovascular health outcomes in high-income countries
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dGK6uR_lXdg/100907163317.htm
The incidence of heart disease, stroke and certain risk factors decreased as educational levels increased in high-income countries, but not in low-and middle-income countries. Among women, the most educated in low-and middle-income countries had a slight increase in the incidence of heart attack and stroke. Among all other groups, heart disease declined as education increased, with highly educated men in high-income countries showing the lowest level of disease.
Wed, 8 Sep 10
Decision-making deficits related to driving under the influence are often undetected
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DzA75nYyoZU/100907163315.htm
Driving under the influence of alcohol is a major public health problem. New findings show that people who had relapsed to DUI have subtle deficits in their decision-making abilities. These deficits tend to go undetected through conventional neuropsychological testing.
Tue, 7 Sep 10
Talented bacteria make food poisoning unpredictable
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4FPkd-Ql_Tg/100905231235.htm
While we are often exposed to bacteria in our food which could cause food poisoning, we don't always become ill -- why should this be so? New research sheds light on how bacteria use different tricks to aid their survival inside the body, helping to explain why food poisoning can be so unpredictable.
Tue, 7 Sep 10
Increase in Cambodia's vultures gives hope to imperiled scavengers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NPH7b-gahdM/100903121414.htm
While vultures across Asia teeter on the brink of extinction, the vultures of Cambodia are increasing in number, providing a beacon of hope for these threatened scavengers, according wildlife conservation experts.
Tue, 7 Sep 10
Satellite data reveals why migrating birds have a small window to spread bird flu
http://feeds.sciencedaily.com/~r/sciencedaily/~3/E4MGY4skHh8/100903072653.htm
In 2005 an outbreak of the H5N1 'bird flu' virus in South East Asia led to widespread fear with predictions that the intercontinental migration of wild birds could lead to global pandemic. Such fears were never realised, and now new research reveals why the global spread of bird flu by direct migration of wildfowl is unlikely, while also providing a new framework for quantifying the risk of avian-borne diseases.
Tue, 7 Sep 10
Breaking up phosphorus with ultraviolet light may offer a safer, simpler way to build many industrial and household chemicals
http://feeds.sciencedaily.com/~r/sciencedaily/~3/u_j_BJ8wi30/100903140907.htm
Phosphorus, a mineral element found in rocks and bone, is a critical ingredient in fertilizers, pesticides, detergents and other industrial and household chemicals. Now chemists have developed a new way to attach phosphorus to organic compounds by first splitting the phosphorus with ultraviolet light. Their method eliminates the need for chlorine, which is usually required for such reactions and poses health risks to workers handling the chemicals.
Tue, 7 Sep 10
Non-invasive therapy significantly improves depression, researchers say
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BMGv3biLkr0/100903092507.htm
A unique new therapy that applies electrical stimulation to a major nerve emanating from the brain is showing promise for major depression. In a recently completed clinical trial, trigeminal nerve stimulation achieved an average of a 70 percent reduction in symptom severity over an 8-week study.
Tue, 7 Sep 10
Backstabbing bacteria: A new treatment for infection?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jMUTedrd6PU/100905231233.htm
Selfish bacterial cells that act in their own interests and do not cooperate with their infection-causing colleagues can actually reduce the severity of infection. The selfish behaviour of these uncooperative bacteria could be exploited to treat antibiotic-resistant infections, according to new research.
Tue, 7 Sep 10
Lake Michigan ecosystem may crash: 'Doughnut' of phytoplankton disappearing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JdjMKK5C6z4/100903210420.htm
In 1998, Charlie Kerfoot discovered a "doughnut" of phytoplankton circulating in Lake Michigan, helping to feed the lake's famous fishery. Just 12 later, the doughnut is disappearing, and Kerfoot fears that the lake's ecosystem will crash, taking with it much of the fish biomass.
Tue, 7 Sep 10
Induced pluripotent stem cell retain an inactivated X chromosome, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/H5OD26TZOLg/100903092501.htm
Female induced pluripotent stem cells, reprogrammed from human skin cells into cells that have the embryonic-like potential to become any cell in the body, retain an inactive X chromosome, stem cell researchers have found.
Tue, 7 Sep 10
Listening to ancient colors: New technique may help restorers identify decades-old pigments
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BfA1MCVm6ss/100902101627.htm
A team of chemists has discovered that a technique known as photoacoustic infrared spectroscopy could be used to identify the composition of pigments used in art work that is decades or even centuries old. Pigments give artist's materials color, and they emit sounds when light is shone on them.
Tue, 7 Sep 10
Transition metal catalysts could be key to origin of life, scientists report
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ybY6IFFH5ac/100903210416.htm
Scientists propose that an overlooked type of biological catalyst -- metal-ligand complexes -- could have jump-started metabolism and life itself, deep in hydrothermal ocean vents.
Tue, 7 Sep 10
'Jailbreak' bacteria can trigger heart disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FnVHAdkIqmQ/100905231231.htm
Plaque-causing bacteria can jailbreak from the mouth into the bloodstream and increase your risk of heart attack, according to new research.
Tue, 7 Sep 10
'Basal-like' breast cancer does not originate from basal stem cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8Il36cAcLls/100902121043.htm
New research uncovers a case of mistaken identity that may have a significant impact on future breast cancer prevention and treatment strategies. The study suggests that despite their "stem cell-like" characteristics, most aggressive breast tumors are not derived from normal mammary gland stem cells.
Tue, 7 Sep 10
In a changing climate, erratic rainfall poses growing threat to rural poor, new report says
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bD7wvt_u_to/100905231239.htm
Against a backdrop of extreme weather wreaking havoc around the world, a new report warns that increasingly erratic rainfall related to climate change will pose a major threat to food security and economic growth, especially in Africa and Asia, requiring increased investment in diverse forms of water storage as an effective remedy.
Tue, 7 Sep 10
Melting rate of icecaps in Greenland and Western Antarctica lower than expected
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GDaFNPlYUp0/100906085152.htm
The Greenland and West Antarctic ice caps are melting at half the speed previously predicted, according to analysis of recent satellite data.
Tue, 7 Sep 10
Water purification: Is colloidal silver necessary for bacteria removal?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/e2ohacHX-5U/100906162326.htm
Scientists traveled to Guatemala twice in the past year to conduct research on ceramic pot filters that are used locally to remove bacteria from water. They found that silver may not be necessary to effectively remove bacteria from source water.
Tue, 7 Sep 10
Most penguin populations continue to decline
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bMutARDCe_w/100906145115.htm
Penguin biologists from around the world warn that ten of the planet's eighteen penguin species have experienced further serious population declines. The effects of climate change, overfishing, chronic oil pollution and predation by introduced mammals are among the major factors cited repeatedly by penguin scientists as contributing to these population drops.
Tue, 7 Sep 10
Colorful mix of asteroids discovered, may aid future space travel
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3PN-IyMmN-0/100906142753.htm
New research from NASA's Spitzer Space Telescope reveals that asteroids somewhat near Earth, termed near-Earth objects, are a mixed bunch, with a surprisingly wide array of compositions.
Tue, 7 Sep 10
Extreme Survival: 'Conan the Bacterium' reveals its recipe for success
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QQo3Wp5f7OA/100906142136.htm
The discovery of long-sought chemical antioxidants in the world's toughest microbe is reported in a breakthrough study. First studied nearly 50 years ago, this bacterium can survive massive exposures to gamma-radiation, ultraviolet radiation, desiccation, and other agents which kill cells by generating reactive oxygen species.
Tue, 7 Sep 10
How physical environment influences stem cell development
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IFj2Ls1LdZo/100906085156.htm
Recent research reveals how physical qualities -- and not only chemical ones – may have an influence in determining how adult stem cells from the bone marrow develop into differentiated ones. The finding represents an important step in understanding the mechanisms that direct and regulate the specialization of stem cells from their undefined state.
Tue, 7 Sep 10
The forest paradox during heatwaves
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BP27xL-Ml4Y/100906085154.htm
Comparatively speaking, forests initially have a weaker cooling effect during heatwaves than open grassland. This is revealed in a study that could help refine models for weather and climate forecasts. Moreover, it also provides fresh arguments for the debate on reforestation in the context of climate change.
Tue, 7 Sep 10
Using buildings for flood protection
http://feeds.sciencedaily.com/~r/sciencedaily/~3/n71ztkssoBE/100906084819.htm
Buildings, car parks and roads could, alongside their 'regular' functions, have a role to play in protecting the rest of the city from flooding. This concept could be very useful for the Dutch cities along the River Rhine, for example.
Tue, 7 Sep 10
What are babies made of? Research shows for some it is sugar, salt and not all things nice
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LWTMuRi3uok/100906084815.htm
Children as young as four weeks old are being fed a poor diet of biscuits, ice-cream and soft drinks, according to new research. A new study found some month-old babies had been introduced to high fat, salt and sugar foods, despite health authorities recommending exclusive breastfeeding to six months of age.
Tue, 7 Sep 10
Six times more insect species in tropical mountains than predicted
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_ETY72ln8fM/100906084811.htm
How many species of insects exist? Researchers found that in tropical mountains there are six times more insects than shown in global calculations. The insects in these areas are also highly specialized in their choice of food.
Tue, 7 Sep 10
More infants should receive iron supplements, researchers urge
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_ilz4PYUuzI/100906084808.htm
Giving iron supplements to children with marginally low birth weights (2000-2500 grams) dramatically reduces the risk of developing iron deficiency and anemia.
Mon, 6 Sep 10
New pump created for microneedle drug-delivery patch
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2L2TMlWbTXg/100901121757.htm
Researchers have developed a new type of pump for drug-delivery patches that might use arrays of "microneedles" to deliver a wider range of medications than now possible with conventional patches.
Mon, 6 Sep 10
Vitamin D is a prognostic marker in heart failure, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/l-YtDTG45w0/100831122055.htm
Survival rates in heart failure patients with reduced levels of vitamin D are lower than in patients with normal levels. This is the finding of a major study carried out in the Netherlands.
Mon, 6 Sep 10
New bee species discovered in downtown Toronto
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UNoba1VrhYs/100831121439.htm
A doctoral student who discovered a new species of bee in Toronto has completed a study of 84 species of sweat bees in Canada. Nineteen of these species are new to science -- never before identified -- including the new Toronto bee, which is actually quite common in eastern Canada and the US. The new research will help scientists track bee diversity, and understand pollination biology and insect social behavior.
Mon, 6 Sep 10
Race, insurance status cited in uneven death rates among pedestrians hit by cars
http://feeds.sciencedaily.com/~r/sciencedaily/~3/078qjHfZ4iA/100903092503.htm
Uninsured minority pedestrians hit by cars are at a significantly higher risk of death than their insured white counterparts, even if the injuries sustained are similar, new research suggests.
Mon, 6 Sep 10
Mosquitoes: Genetic structure of first animal to show evolutionary response to climate change determined
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RP7QSO5twhg/100824132357.htm
Scientists have determined the fine-scale genetic structure of the first animal to show an evolutionary response to rapid climate change.
Mon, 6 Sep 10
Starvation keeps sleep-deprived fly brain sharp
http://feeds.sciencedaily.com/~r/sciencedaily/~3/n5CILUSYfSs/100831172443.htm
As anyone who has ever struggled to keep his or her eyes open after a big meal knows, eating can induce sleepiness. New research in fruit flies suggests that, conversely, being hungry may provide a way to stay awake without feeling groggy or mentally challenged.
Mon, 6 Sep 10
Iron deficiency in heart failure
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4Xg3eIlZZlM/100831122057.htm
Iron deficiency is a relatively common nutritional disorder that affects more than one third of the general population, and is often associated with chronic diseases such as inflammatory bowel disease, Parkinson's disease, rheumatoid diseases and renal failure. New research has demonstrated that iron deficiency also affects at least one-third of non-anaemic chronic heart failure patients.
Mon, 6 Sep 10
NASA and ATK successfully test five-segment solid rocket motor
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OfoTOl6gaN4/100831125544.htm
With a loud roar and mighty column of flame, NASA and ATK Aerospace Systems successfully completed a two-minute, full-scale test of the largest and most powerful solid rocket motor designed for flight. The motor is potentially transferable to future heavy-lift launch vehicle designs.
Mon, 6 Sep 10
New self-assembling photovoltaic technology repairs itself
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vUI-1bKheBQ/100905161908.htm
Scientists have created a novel set of self-assembling molecules that can turn sunlight into electricity; the molecules can be repeatedly broken down and then reassembled quickly, just by adding or removing an additional solution.
Mon, 6 Sep 10
Role of key genetic catalyst for human diversity discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/55pUJrc0N7c/100905161912.htm
One of the key drivers of human evolution and diversity, accounting for changes that occur between different generations of people, is explained by new research.
Mon, 6 Sep 10
Sex more likely for female flies with promise of food
http://feeds.sciencedaily.com/~r/sciencedaily/~3/A7phhMf7vu4/100905165004.htm
Female fruit flies will have sex more frequently if they think there is more food around, and a new study has explained how this happens.
Mon, 6 Sep 10
Are shame and poverty closely linked?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GtFZjXq_rnE/100905164823.htm
A major international study is to examine whether shame is a key part of the experience of being poor. It will look at whether being poor necessarily results in low self esteem or feelings of shame and whether welfare policies are counterproductive when claimants are stigmatized.
Mon, 6 Sep 10
Acting selfish? Blame your mother!
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dqYkm8kK45Y/100905164034.htm
The fact that our female ancestors dispersed more than our male ancestors can lead to conflicts within the brain that influence our social behavior, new research reveals.
Mon, 6 Sep 10
Biologists find way to reduce stem cell loss during cancer treatment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xUL5RQSOZAQ/100905161915.htm
Biologists have discovered that a gene critical for programmed cell death is also important in the loss of adult stem cells, a finding that could help to improve the health and well-being of patients undergoing cancer treatment.
Mon, 6 Sep 10
'Slow light' on a chip holds promise for optical communications
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BJkXqwJuQ8M/100905161910.htm
A tiny optical device built into a silicon chip has achieved the slowest light propagation on a chip to date, reducing the speed of light by a factor of 1,200.
Sun, 5 Sep 10
Hair provides proof of the link between chronic stress and heart attack
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_AsCWVT1jTs/100903072320.htm
Researchers have provided the first direct evidence using a biological marker, to show chronic stress plays an important role in heart attacks. The scientists developed a method to measure cortisol levels in hair providing an accurate assessment of stress levels in the months prior to an acute event such as a heart attack.
Sun, 5 Sep 10
Novel nanotechnology collaboration leads to breakthrough in cancer research
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fZlMVYRyOhA/100901091949.htm
A multidisciplinary group of researchers has produced a 3.6-angstrom resolution structure of the human adenovirus. Scientists are working with adenovirus as a vector for gene therapy, but have needed better structural information.
Sun, 5 Sep 10
Functional motor neuron subtypes generated from embryonic stem cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-fJy2jyLkuA/100902121041.htm
Scientists have devised a method for coaxing mouse embryonic stem cells into forming a highly specific motor neuron subtype. The research provides new insight into motor neuron differentiation and may prove useful for devising and testing future therapies for motor neuron diseases.
Sun, 5 Sep 10
Helping corn-based plastics take more heat
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nrV92gh6DXM/100901111630.htm
A team of agricultural scientists are working to make corn-derived plastics more heat tolerant -- research that may broaden the range of applications for which these plastics could be used as an alternative to petroleum-based plastics.
Sun, 5 Sep 10
Next step in evolution? A technical life form that passes on knowledge and experience
http://feeds.sciencedaily.com/~r/sciencedaily/~3/y3Y_jbhAMoI/100903072649.htm
Dutch biologist Gerard Jagers op Akkerhuis has developed the ‘operator hierarchy’ -- a system based on the complexity of particles and of organisms, which can predict the next step in evolution: a technical life form, that can pass on its knowledge and experience to the next generation.
Sun, 5 Sep 10
Most new farmland in tropics comes from slashing forests, research shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KZtfaEGFvOc/100903092515.htm
A new study shows that more than 80 percent of the new farmland created in the tropics between 1980 and 2000 came from felling forests, which sends carbon into the atmosphere and drives global warming. But the research team also noted that big agribusiness has largely replaced small farmers in doing most of the tree cutting in Brazil and Indonesia, which may make it easier to rein in the trend.
Sun, 5 Sep 10
When it comes to the immune system, we're all more alike than previously thought, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ng-xc3z02ps/100901145247.htm
When it comes to the mechanics of the human immune system, we are all more alike than previously thought, according to a new study.
Sun, 5 Sep 10
Why fish oils work swimmingly against inflammation and diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DHY_LIIt-dY/100902121049.htm
Researchers have identified the molecular mechanism that makes omega-3 fatty acids so effective in reducing chronic inflammation and insulin resistance.
Sun, 5 Sep 10
New animal model for hemophilia A developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wlyWGI2Ybrc/100903092505.htm
Researchers have developed a new animal model for studying hemophilia A, with the goal of eventually treating people with the disorder. Hemophilia A, a hereditary defect that prevents blood from clotting normally, is caused by a variety of mutations in the factor VIII gene.
Sun, 5 Sep 10
Many urban streams harmful to aquatic life following winter pavement deicing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Pqje6k4Erb0/100901121802.htm
The use of salt to deice pavement can leave urban streams toxic to aquatic life, according to a new study on the influence of winter runoff in northern US cities, with a special focus on eastern Wisconsin and Milwaukee.
Sun, 5 Sep 10
Verbal snippets offer insights on well-being amid separation, divorce
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Lu1MSMcvxOo/100903092511.htm
A new study of romantically separated people shows they offer clues to their emotional status in just a few seconds of conversation.
Sun, 5 Sep 10
Global warming's silver lining? Northern countries will thrive and grow, researcher predicts
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DLY-uXBmtno/100904164915.htm
Move over, Sunbelt. The New North is coming through, a geographer predicts in a new book. As worldwide population increases by 40 percent over the next 40 years, sparsely populated Canada, Scandinavia, Russia and the northern United States will become formidable economic powers and migration magnets, Laurence C. Smith writes.
Sun, 5 Sep 10
Did Viking Mars landers find life's building blocks? Missing piece inspires new look at puzzle
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YZYkeWNro6s/100904081050.htm
Experiments prompted by a 2008 surprise from NASA's Phoenix Mars Lander suggest that soil examined by NASA's Viking Mars landers in 1976 may have contained carbon-based chemical building blocks of life.
Sun, 5 Sep 10
New mission to skim the Sun: NASA selects science investigations for Solar Probe Plus
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ogAC4iWS79o/100904080632.htm
NASA has begun development of a mission to visit and study the sun closer than ever before. The unprecedented project, named Solar Probe Plus, is slated to launch no later than 2018. The small car-sized spacecraft will plunge directly into the sun's atmosphere approximately four million miles from our star's surface. It will explore a region no other spacecraft ever has encountered.
Sat, 4 Sep 10
Ants take on Goliath role in protecting trees in the savanna from elephants
http://feeds.sciencedaily.com/~r/sciencedaily/~3/V6LjUsUAqPs/100902121053.htm
Ants are not out of their weight class when defending trees from the appetite of nature's heavyweight, the African elephant, a new study finds. Columns of angered ants will crawl up into elephant trunks to repel the ravenous beasts from devouring tree cover throughout drought-plagued East African savannas, playing a potentially important role in regulating carbon sequestration in these ecosystems.
Sat, 4 Sep 10
Mechanisms and function of a type of mysterious immune cell discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TtYFy0VwaXU/100902141614.htm
In two closely related studies, two teams of scientists have discovered the underlying mechanisms that activate a type of immune cell in the skin and other organs. The findings may lead to the development of new therapies to treat inflammation, wounds, asthma and malignant tumors.
Sat, 4 Sep 10
Giant Greenland iceberg -- largest in the northern hemisphere -- enters Nares Strait
http://feeds.sciencedaily.com/~r/sciencedaily/~3/C8vipql6WtA/100903072655.htm
The European Space Agency's Envisat satellite has been tracking the progression of the giant iceberg that calved from Greenland's Petermann glacier on 4 August 2010. A new animation shows that the iceberg, the largest in the northern hemisphere, is now entering Nares Strait -- a stretch of water that connects the Lincoln Sea and Arctic Ocean with Baffin Bay.
Sat, 4 Sep 10
How bone-marrow stem cells hold their 'breath' in low-oxygen environments
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9SFW4rDPoTk/100903072323.htm
Researchers have identified unique metabolic properties that allow a specific type of stem cell in the body to survive and replicate in low-oxygen environments.
Sat, 4 Sep 10
Chemists, engineers achieve world record with high-speed graphene transistors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/l9NViPV7RkQ/100903092509.htm
Researchers have developed a new fabrication process for high-speed graphene transistors using a nanowire as the self-aligned gate. This new technique does not produce any appreciable defects in the graphene during fabrication, so the carrier mobility is retained. Also, by using a self-aligned approach with a nanowire as the gate, the group was able to overcome alignment difficulties previously encountered and fabricate short channel devices with unprecedented performance.
Sat, 4 Sep 10
Low grades in adolescence linked to dopamine genes, says biosocial criminologist
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sxpvKeEHqtI/100902131740.htm
The academic performance of adolescents will suffer in at least one of four key subjects -- English, math, science, history -- if their DNA contains one or more of three specific dopamine gene variations, according to a biosocial criminologist.
Sat, 4 Sep 10
Magnetism's subatomic roots: Study of high-tech materials helps explain everyday phenomenon
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iwKxhdG92EE/100903121418.htm
Theoretical physicists have created a new model that helps define the subatomic origins of ferromagnetism -- the everyday "magnetism" of compass needles and refrigerator magnets. The model was created to explore the inner workings of ferromagnetic compounds that are related to high-temperature superconductors.
Sat, 4 Sep 10
Afla-Guard also protects corn crops, study shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cwGrOIwSrIQ/100903121416.htm
Afla-Guard, a biological control used to thwart the growth of fungi on peanuts, can be used on corn as well, according to a study by agriculture scientists who helped develop it. After extensive study and research trials in Texas, Afla-Guard was registered by the US Environmental Protection Agency for use on corn, beginning with the 2009 crop.
Sat, 4 Sep 10
Cognitive effects of Parkinson's disease: Automated tasks easier, but task switching difficult
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TFeYhYmaU5Q/100903112514.htm
Researchers have found that people with Parkinson's disease can perform automated tasks better than people without the disease, but have significant difficulty switching from easy to hard tasks.
Sat, 4 Sep 10
Blue breed: Rare hibiscus color is achieved thanks to flower breeding project
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KUsbsv7h6lE/100903112512.htm
Scientists working on a winter-hardy hibiscus breeding project have achieved a rare color for the plant: blue.
Sat, 4 Sep 10
Fashion student designs edible clothes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_PmQIjvI9M0/100903105101.htm
Emily Crane's research into growing edible materials has enabled her to bring a touch of haute cuisine to her haute couture.
Sat, 4 Sep 10
Americans struggle with long-term weight loss
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nfhD69KeuI4/100903104830.htm
Only about one in every six Americans who have ever been overweight or obese loses weight and maintains that loss, according to researchers.
Fri, 3 Sep 10
Brainy worms: Scientists uncover counterpart of cerebral cortex in marine worms
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cmTHhs4DCp8/100902121051.htm
Unexpectedly, scientists have now discovered a true counterpart of the cerebral cortex in an invertebrate, a marine worm. Their findings give an idea of what the most ancient higher brain centers looked like, and what our distant ancestors used them for.
Fri, 3 Sep 10
Capsaicin can act as co-carcinogen, study finds; Chili pepper component linked to skin cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hRwZnghrqDY/100902121057.htm
New research links capsaicin, a component of chili peppers, to skin cancer. While the molecular mechanisms of the cancer-promoting effects of capsaicin are not clear and remain controversial, the new research has shown a definite connection to formation of skin cancer through various laboratory studies.
Fri, 3 Sep 10
Cranberry juice shows promise blocking Staph infections
http://feeds.sciencedaily.com/~r/sciencedaily/~3/R_7pxNb8u0g/100901132233.htm
Expanding their scope of study on the mechanisms of bacterial infection, researchers have reported the surprise finding from a small clinical study that cranberry juice cocktail blocked a strain of Staphylococcus aureus from beginning the process of infection.
Fri, 3 Sep 10
Cancer-causing gene crucial in stem cell development, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SZmVw9A13X4/100902121047.htm
A research team has shown for the first time that a gene called Myc, which is traditionally thought of as a cancer-causing gene, may be far more important in the development and persistence of stem cells than was known before.
Fri, 3 Sep 10
Computer technique could help partially sighted 'see' better
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BSvEXobafKY/100518230518.htm
Thousands of people who are partially sighted following stroke or brain injury could gain greater independence from a simple, cheap and accessible training course which could eventually be delivered from their mobile phones or hand-held games consoles, according to a new study.
Fri, 3 Sep 10
Science's policy clout diminished, but oil risk looms large, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fRV2icdl27M/100902191323.htm
More people are likely to believe scientific studies claiming that oil drilling is riskier, not safer, than was previously thought, according to a new study of attitudes in California. What's more the findings show that scientists' efforts to influence public opinion have a limited effect.
Fri, 3 Sep 10
Miniature auto differential helps tiny aerial robots stay aloft
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DXU9IG2YdNY/100902093456.htm
Engineers have created a millionth-scale automobile differential to govern the flight of minuscule aerial robots that could someday be used to probe environmental hazards, forest fires, and other places too perilous for people. Their new approach is the first to passively balance the aerodynamic forces encountered by these miniature flying devices, letting their wings flap asymmetrically in response to gusts of wind, wing damage, and other real-world impediments.
Fri, 3 Sep 10
Children who eat vended snack foods face chronic health problems, poor diet, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/T0np3l08P54/100902173444.htm
School children who consume foods purchased in vending machines are more likely to develop poor diet quality -- and that may be associated with being overweight, obese or at risk for chronic health problems such as diabetes and coronary artery disease, according to new research.
Fri, 3 Sep 10
Experiment records ultrafast chemical reaction with vibrational echoes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jyabPCnyekM/100901121522.htm
To watch a magician transform a vase of flowers into a rabbit, it's best to have a front-row seat. Likewise, for chemical transformations in solution, the best view belongs to the molecular spectators closest to the action. Those special molecules comprise the "first solvation shell," and although it has been known for decades that they can sense and dictate the fate of nearly every chemical reaction, it has been virtually impossible to watch them respond -- until now.
Fri, 3 Sep 10
Increased risk for lupus in men with certain form of immune receptor
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2iE2B7ZXaWk/100902093452.htm
Humans -- males in particular -- with a variant form of the immune receptor gene "Toll Like Receptor 7" are at increased risk of developing the autoimmune disease lupus. This finding offers renewed hope for developing more targeted treatments.
Fri, 3 Sep 10
Laser-based missile defense for helicopters being developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cqRUvgMkXgw/100902173257.htm
Protecting helicopters in combat from heat-seeking missiles is the goal of new laser technology.
Fri, 3 Sep 10
Social networks influence health behaviors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/saWqOdhzPPc/100902141603.htm
Individuals are more likely to acquire new health practices while living in networks with dense clusters of connections -- that is, when in close contact with people they already know well.
Fri, 3 Sep 10
Chemists develop simple technique to visualize atomic-scale structures
http://feeds.sciencedaily.com/~r/sciencedaily/~3/loX9HIGkklg/100902151122.htm
Researchers have devised a new technique -- using a sheet of carbon just one atom thick -- to visualize the structure of molecules. The technique, which was used to obtain the first direct images of how water coats surfaces at room temperature, can also be used to image a potentially unlimited number of other molecules, including antibodies and other biomolecules.
Fri, 3 Sep 10
Cigarette smoke may contribute to lung inflammation through a new chemical pathway
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NTdZfwjt9QU/100902173259.htm
Cigarette smoke shuts off a key enzyme in airways that regulates the body's response to inflammation, according to new findings. Researchers say smoke inhibits the enzyme, called Leukotriene A4 Hydrolase (LTA4H), causing it to fail in its job of shutting down white blood cells following a successful response to inflammation.
Fri, 3 Sep 10
Scientists listen to faint sounds inside insects using atomic force microscopy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rWphAeqWw_k/100518124128.htm
Scientists are using atomic force microscopy to record sounds emanating from inside living insects like flies, mosquitoes and ladybugs.
Fri, 3 Sep 10
Serendipity contributes to MRSA susceptibility findings
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aouADpIEyQ0/100902173251.htm
Researchers have found two genes in mice which might help identify why some people are more susceptible than others to potentially deadly staph infections.
Fri, 3 Sep 10
Researchers discover proton diode: Water is an active element in proteins
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ufP7hmiHSPw/100902073643.htm
Biophysicists in Germany have discovered a diode for protons: just like the electronic component determines the direction of flow of electric current, the “proton diode” ensures that protons can only pass through a cell membrane in one direction. Water molecules play an important role here as active components of the diode. The researchers were able to observe this through a combination of molecular biology, X-ray crystallography, time-resolved FTIR spectroscopy and biomolecular simulations.
Fri, 3 Sep 10
Problem of fake medicines in developing countries could be solved, experts say
http://feeds.sciencedaily.com/~r/sciencedaily/~3/io4_9ZbYDbo/100901073356.htm
Counterfeiting of drugs is a huge industry. In Africa the situation is extremely serious. Half of the malaria medication sold there could be ineffective or even harmful. There is currently no good way to identify counterfeit drugs. However, researchers in Sweden and the UK have now developed a technique that could resolve the situation.
Fri, 3 Sep 10
Molecules involved in 'touch' identified: Could lead to new treatments for pain, deafness and cardiac function
http://feeds.sciencedaily.com/~r/sciencedaily/~3/awic9DPuzcY/100902151118.htm
Scientists have identified two proteins with potential to be important targets for research into a wide range of health problems, including pain, deafness, and cardiac and kidney dysfunction.
Fri, 3 Sep 10
Value of oxygen therapy in end-of-life care challenged in new study
http://feeds.sciencedaily.com/~r/sciencedaily/~3/COCWquc3KUU/100902191325.htm
Millions of patients with advanced disease in palliative care settings receive oxygen therapy to help them breathe more easily. But a new study says roughly half of them don't benefit from the intervention, and among those who do benefit, it doesn't make a bit of difference whether they get pure oxygen or just plain old room air -- both offer equal benefit.
Fri, 3 Sep 10
How do organisms make dietary choices?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ha0-8kZ4h08/100513123827.htm
When given a choice, organisms will choose a diet that maintains a nutritional balance in tune with their needs. That choice, studied in fruit flies for the first time, is regulated by activity in a molecular pathway involved in aging, cancer and diabetes. Humans share the same molecular pathway. The study, the first to be done in a genetically tractable lab animal, could lead to treatments that would "reboot" metabolic pathways in individuals who are obese or suffer from diabetes.
Fri, 3 Sep 10
New warning signs may predict kidney transplant failure
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dk1eX4WyBK8/100902173249.htm
Kidney transplants that show a combination of fibrosis (scarring) and inflammation after one year are at higher risk of long-term transplant failure, according to a new study.
Fri, 3 Sep 10
The perfect nanocube: Precise control of size, shape and composition
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BtQGKPK4OSo/100901111716.htm
Researchers have developed a simple process for producing near-perfect nanocrystals that will enable studies of physical and chemical properties that affect how nanoparticles interact with the world around them.
Fri, 3 Sep 10
Safety cultures in emergency medical services agencies vary widely, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1nTICXOqrK8/100902111818.htm
A survey of emergency medical services agencies from across the country found wide variation in perceptions of workplace safety culture -- providing a tool that might point to potential patient safety threats, according to researchers.
Fri, 3 Sep 10
Model for implantable artificial kidney to replace dialysis unveiled
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ykiN0wN1jZc/100902161253.htm
Researchers have unveiled a prototype model of the first implantable artificial kidney, in a development that one day could eliminate the need for dialysis.
Fri, 3 Sep 10
New type of anti-malarial compound discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ehCQ0iubUQI/100902141608.htm
Scientists have discovered a promising new drug candidate that represents a new class of drug to treat malaria. Clinical trials for the compound are planned for later this year.
Fri, 3 Sep 10
Cuckoo chicks in Zebra finches: Eggs from other females can be found in every fifth nest
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HITbZFZivb4/100422155027.htm
Some female zebra finches foist a part of their eggs on their neighbors. Scientists in Germany have discovered that in every fifth nest there is one egg that is not produced by its social parents. The female birds act in a very well-targeted way: eggs are being placed in “foster-care” shortly before the hosts commence their own egg laying.
Fri, 3 Sep 10
Long term use of oral bisphosphonates may double risk of esophageal cancer, study finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3gAcQLSDf0I/100902191327.htm
People who take oral bisphosphonates for bone disease over five years may be doubling their risk of developing esophageal cancer (cancer of the gullet), according to a new study.
Fri, 3 Sep 10
Scientists develop new method to identify glycosylated proteins
http://feeds.sciencedaily.com/~r/sciencedaily/~3/afOwa5IxFhs/100528093210.htm
Various processes in our body are controlled by subsequent changes of proteins. Therefore, the identification of such modifications is essential for the further exploration of the human organism. Now, scientists in Germany have made a crucial contribution to this: Using a new method, they have been able to identify more than 6,000 glycosylated protein sites in different tissues and have thus established an important basis for the better understanding of all life proce