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Crashing Comets Not Likely The Cause Of Earth's Mass Extinctions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qqOk7eGTnmg/090730141552.htm
A recent likely comet collision on Jupiter caused a minor sensation, but new research shows that similar impacts on Earth are most likely not responsible for any of the planet's mass extinctions, nor have they been responsible for more than one minor extinction event.
Fri, 31 Jul 09
Got Zinc? New Zinc Research Suggests Novel Therapeutic Targets
http://feeds.sciencedaily.com/~r/sciencedaily/~3/y4_4kCE-5gU/090730103740.htm
Everyone knows that vitamins "from A to zinc" are important for good health. Now, a new research study suggests that zinc may be pointing the way to new therapeutic targets for fighting infections. Specifically, scientists found that zinc not only supports healthy immune function, but increases activation of the cells (T cells) responsible for destroying viruses and bacteria.
Fri, 31 Jul 09
Assisted Reproductive Techniques Alter Expression Of Genes Important For Metabolism
http://feeds.sciencedaily.com/~r/sciencedaily/~3/znMdqZNDExU/090727102032.htm
Assisted reproductive techniques alter the expression of genes that are important for metabolism and the transport of nutrients in the placenta of mice. The results underscore the need for greater understanding of the long-term effects of new assisted reproductive techniques in humans.
Fri, 31 Jul 09
Heart Failure: Women Different From Men; Absence Of Women In Clinical Trials Hinders Development Of Tailored Treatments
http://feeds.sciencedaily.com/~r/sciencedaily/~3/d8FkRk6eQ6w/090727191254.htm
Striking differences in the risk factors for developing heart failure (HF) and patient prognosis exist between men and women. Men and women may also respond differently to treatment, raising concerns about whether current practices provide the best care and reinforcing the urgency for sex-specific clinical trials for HF, according to a new review article.
Fri, 31 Jul 09
Mines Could Provide Geothermal Energy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GzKxx9iO2JI/090727081108.htm
Mine shafts on the point of being closed down could be used to provide geothermal energy to local towns. The method engineers have developed makes it possible to estimate the amount of heat that a tunnel could potentially provide.
Fri, 31 Jul 09
Health Benefits Of Physical Activity More Pronounced In Women
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JaxIJRXPFRg/090729132119.htm
A long-term study of over 8,700 middle-aged men and women provides some of the first race- and gender- specific data on the cholesterol effects of physical activity, with the interesting result that women, particularly African-American women, experience greater benefits in their cholesterol levels as a result of exercise than men.
Fri, 31 Jul 09
Warmer Environment Means Shorter Lives For Cold-blooded Animals
http://feeds.sciencedaily.com/~r/sciencedaily/~3/miy2N6TNWoE/090727191906.htm
Temperature explains much of why cold-blooded organisms such as fish, amphibians, crustaceans, and lizards live longer at higher latitudes than at lower latitudes, according to new research.
Fri, 31 Jul 09
High Calcium Level In Arteries May Signal Serious Heart Attack Risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6ecwE_Y2Oyw/090728083245.htm
Researchers may be able to predict future severe cardiac events in patients with known, stable coronary artery disease using coronary calcium scoring, according to a new study.
Fri, 31 Jul 09
Reexamination Of T. Rex Verifies Disputed Biochemical Remains
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yFOzJ-fHAk0/090729103737.htm
A new analysis of the remains of a Tyrannosaurus rex (T. rex) that roamed Earth 68 million years ago has confirmed traces of protein from blood and bone, tendons, or cartilage. The findings is the latest addition to an ongoing controversy over which biochemical remnants can be detected in the dinosaur.
Fri, 31 Jul 09
Genetic Link To Age-related Cataracts Uncovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7Z7gvyQSR_g/090730200622.htm
Scientists have discovered the first gene associated with the formation of age-related cataracts, a leading causes of blindness.
Fri, 31 Jul 09
'Microfluidic Palette' May Paint Clearer Picture Of Biological Processes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oZQgnZXBGQw/090729121702.htm
Rsearchers have created an innovative device called a "microfluidic palette" that can be used to study the complex biological mechanisms in cells responsible for cancer metastasis, wound healing, biofilm formation and other fluid-related processes.
Fri, 31 Jul 09
Want Responsible Robotics? Start With Responsible Humans
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JwenWPIZ6y8/090729155821.htm
When the legendary science fiction writer Isaac Asimov penned the "Three Laws of Responsible Robotics," he forever changed the way humans think about artificial intelligence, and inspired generations of engineers to take up robotics. Two engineers now propose alternative laws to rewrite our future with robots. The future they foresee is at once safer, and more realistic.
Fri, 31 Jul 09
Parasites May Have Had Role In Evolution Of Sex
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kGfUmLR45xI/090706171542.htm
What's so great about sex? From an evolutionary perspective, the answer is not as obvious as one might think. A new article suggests that sex may have evolved in part as a defense against parasites.
Fri, 31 Jul 09
Natural Born Killers: How The Body's Frontline Immune Cells Decide Which Cells To Destroy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-VJRl44k0mA/090727203741.htm
The mechanism used by "natural killer" immune cells in the human body to distinguish between diseased cells, which they are meant to destroy, and normal cells, which they are meant to leave alone, has been revealed in new detail.
Fri, 31 Jul 09
Invigorated Muscle Structure Allows Geese To Brave The Himalayas
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NUUF5fQMGEw/090728201743.htm
A higher density of blood vessels and other unique physiological features in the flight muscles of bar-headed geese allow them to do what even the most elite of human athletes struggle to accomplish -- assert energy at high altitudes.
Fri, 31 Jul 09
Immune Cells From Spleen May Be Essential In Healing Heart Attack Damage, Mouse Study Indicates
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1NlyPL4iFBc/090730141557.htm
Researchers have discovered an unexpected reservoir of monocytes in the spleen and found that these cells are essential to recovery of cardiac tissue in an animal heart attack model.
Fri, 31 Jul 09
Teeny-tiny X-ray Vision
http://feeds.sciencedaily.com/~r/sciencedaily/~3/z4nG7hPQGrI/090728145214.htm
The tubes that power X-ray machines are shrinking, improving the clarity and detail of their Superman-like vision. A team of nanomaterial scientists, medical physicists, and cancer biologists has developed new lower-cost X-ray tubes packed with sharp-tipped carbon nanotubes for cancer research and treatment.
Fri, 31 Jul 09
College Students Who Feel 'Invincible' Unlikely To Accept STD Vaccines
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nhF3cwmmlhE/090729181504.htm
In a new study, researchers have found that students who feel invulnerable, or invincible, to physical harm are unlikely to get an HIV vaccine. Alternately, students who feel invulnerable to psychological harm are more likely to get the vaccine.
Fri, 31 Jul 09
Evidence Of Liquid Water In Comets Reveals Possible Origin Of Life
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kpUGDEVHvG0/090730141658.htm
Comets have contained vast amounts of liquid water in their interiors during the first million years of their formation, a new study claims. The watery environment of early comets, together with the vast quantity of organics already discovered in comets, would have provided ideal conditions for primitive bacteria to grow and multiply, experts argue.
Fri, 31 Jul 09
Possible Treatment For Spinal Muscular Atrophy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AnUNZr3CAU4/090727143702.htm
Spinal muscular atrophy affects 1 in 6,000 to 1 in 10,000 children born every year. One in 40 people are carriers of the disease -- they don't have the symptoms, but could pass the disease to their children. Medical researchers have now made a huge discovery on the road to curing the disease.
Fri, 31 Jul 09
Bizarre Bald Bird Discovered In Asia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rXF4vc2s7aY/090729203655.htm
An odd songbird with a bald head living in a rugged region in Laos has been discovered. Dubbed the "Bare-faced Bulbul" because of the lack of feathers on its face and part of its head, it is the only example of a bald songbird in mainland Asia, according to scientists.
Fri, 31 Jul 09
Blood Transfusions Associated With Infection
http://feeds.sciencedaily.com/~r/sciencedaily/~3/64he7U3ItcI/090730200627.htm
A study of almost 25,000 coronary artery bypass graft patients has shown that receiving blood from another person is associated with a two-fold increase in post-operative infection rates. The research also found considerable hospital variation in transfusion practices.
Fri, 31 Jul 09
Metal Composition Hold Key To Identity Of Modern Sculptures
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9HA0P-mmdjg/090730074336.htm
Alloying elements in bronze sculptures give clues about artist, date, origin and authenticity. How do you tell when, where and how a Picasso or a Matisse sculpture was cast? Could bronze sculptures have their very own DNA? By linking data from the alloy composition of modern sculptures with parameters from art history, researchers have classified the unique composition profiles of cast bronze sculptures by major European artists of the first half of the 20th century, profiles which could be used as another method to identify, date and even authenticate sculptures.
Fri, 31 Jul 09
Drug-proof Zebrafish Reveal Secrets Of Addiction
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Xa04rlm86qk/090730200624.htm
The effects of amphetamines on gene expression in zebrafish have been uncovered. A new study provides clues to the genetics that underlie susceptibility to addiction by describing the nad zebrafish mutant, which does not feel the rewarding effects of the drugs.
Fri, 31 Jul 09
Rodent Size Linked To Human Population And Climate Change
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FDSqFKAX0dU/090730200634.htm
You probably hadn't noticed, but the head shape and overall size of rodents has been changing over the past century. Ecologists have tied these changes to human population density and climate change.
Fri, 31 Jul 09
Iron-binding Drug Could Help Diabetics Heal Stubborn Wounds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3p_rDcxPkoQ/090727191247.htm
A drug used to remove iron from the body could help doctors fight one of diabetes' cruelest complications: poor wound healing, which can lead to amputation of patients' toes, feet and even legs.
Fri, 31 Jul 09
Mapping The Crocodile Genome
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9V9EjT8zBwg/090728201739.htm
The first ever genetic linkage map for a non-avian member of the Class Reptilia has been developed. Researchers have constructed a first-generation genetic linkage map for the saltwater crocodile Crocodylus porosus.
Fri, 31 Jul 09
Post-transplant Combo Can Replace Toxic Immune-suppressing Drugs In Monkeys
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_9Bg6qBD4Nk/090708132816.htm
A combination of costimulation blockers and alefacept can replace calcineurin inhibitors, the mainstay drugs given to transplant patients, in preventing graft rejection after kidney transplants in monkeys. The finding opens the door to less-toxic post-transplant treatment for humans that could be administered once a week. Costimulation blockers target immune cells without the predominant side effects of conventional transplant drugs. Alefacept subdues T cells responsible for immunological memory.
Fri, 31 Jul 09
Artificial Intelligence Used To Diagnose Metastatic Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ANwVCGC53RU/090728083249.htm
When doctors are managing care for women with breast cancer, the information available to them profoundly influences the type of care they recommend. Knowing whether a woman's cancer has metastasized, for instance, directly affects how her doctors will approach treatment -- which may in turn influence the outcome of that treatment.
Fri, 31 Jul 09
Just Expecting A Tasty Food Activates Brain Reward Systems
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Iy_fHOuNl8k/090727102026.htm
Exposing rats to a context associated with eating chocolate activates a part of the brain's reward system known as the orexin system. The results have implications for the development of new drug treatments for overeating.
Fri, 31 Jul 09
Breakdown In Planck's Law: Bringing Objects Close Together Can Boost Radiation Heat Transfer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7QLgHeeqs8o/090730154025.htm
A well-established physical law describes the transfer of heat between two objects, but some physicists have long predicted that the law should break down when the objects are very close together. Scientists had never been able to confirm, or measure, this breakdown in practice. For the first time, however, researchers have achieved this feat, and determined that the heat transfer can be 1,000 times greater than the law predicts.
Fri, 31 Jul 09
Nanoparticle-delivered 'Suicide' Genes Slowed Ovarian Tumor Growth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JTSUqNWIk1Y/090730073607.htm
Nanoparticle delivery of diphtheria toxin-encoding DNA selectively expressed in ovarian cancer cells reduced the burden of ovarian tumors in mice, and researchers expect this therapy could be tested in humans within 18 to 24 months.
Fri, 31 Jul 09
Secrets Of Caistor Roman Town
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SXy_UarE1tw/090624111021.htm
New investigations have shown that rather than simply being a provincial Roman town, Caistor may represent the development of a major settlement from the Iron Age until the 9th century AD. Crucially, however, the site was ultimately superseded by medieval Norwich and reverted to green fields. This is quite unlike other Roman towns that have the same long occupation sequence which now lie buried beneath the modern towns of Britain and Europe.
Fri, 31 Jul 09
New Approach To Screening For Serious Kidney Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yvIwd_6vkSM/090707155825.htm
The combination of two common medical tests can improve a doctor’s ability to predict which patients will develop serious kidney disease.
Fri, 31 Jul 09
Discovery About Behavior Of Building Block Of Nature Could Lead To Computer Revolution
http://feeds.sciencedaily.com/~r/sciencedaily/~3/d3LZP3bi9ks/090730141607.htm
Physicists have shown that electrons in narrow wires can divide into two new particles called spinons and a holons.
Fri, 31 Jul 09
A Silly Pat On The Head Helps Seniors Remember Daily Medication
http://feeds.sciencedaily.com/~r/sciencedaily/~3/17hR54DW00g/090730183038.htm
Doing something unusual, like knocking on wood or patting yourself on the head, while taking a daily dose of medicine may be an effective strategy to help seniors remember whether they've already taken their daily medications, suggests new research.
Fri, 31 Jul 09
New Hope For Fisheries: Overfishing Reduced In Several Regions Around The World
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6_vHYW_lqVs/090730141555.htm
A groundbreaking assessment of marine fisheries and ecosystems reveals that overfishing has been reduced in several regions around the world, resulting in some stock recovery. Importantly, the work bolsters the case that sound management can contribute to the rebuilding of fisheries elsewhere.
Fri, 31 Jul 09
Pregnancy: Summer Heat Increases Risk Of Amniotic Fluid Level Deficiency, Study Reveals
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1-4ycA_Aq5Y/090730141613.htm
Pregnant women have a higher incidence of insufficient amniotic fluid levels (oligohydramnios) in the summer months due to dehydration, according to a new study. During the study period, there were 191,558 deliveries of which 4,335 were diagnosed with idiopathic oligohydramnios. Of these, a proportionally higher number, 1,553 deliveries (36 percent), occurred during these four summer months, while 2,782 deliveries occurred during the other eight months of the year (64 percent).
Fri, 31 Jul 09
Waste Water Treatment Plant Mud Used As 'Green' Fuel
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5SN7ysl8E60/090623090358.htm
Scientists have shown that using mud from waste water treatment plants as a partial alternative fuel can enable cement factories to reduce their carbon dioxide emissions and comply with the Kyoto Protocol, as well as posing no risk to human health and being profitable. These are the results of an environmental impact assessment.
Fri, 31 Jul 09
Hunt For The Blood Test To Determine Melanoma Survival Rates
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9I817-lcHks/090630075447.htm
New research will be breaking new ground in the search for a simple blood test that could tell whether a patient with melanoma has the condition in an aggressive form. Melanoma is the most aggressive form of skin cancer. Staging, which involves determining the size of the tumor and its extent of spread, is the best predictor of whether a patient will succumb to disease or survive.
Fri, 31 Jul 09
Programming Tools Facilitate Use Of Video Game Processors For Defense Needs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BetryNy8IY0/090624111917.htm
Researchers are developing programming tools to enable engineers in the defense industry to utilize the processing power of GPUs without having to learn the complicated programming language required to use them directly.
Fri, 31 Jul 09
Stories We Tell About National Trauma Reflect Our Psychological Well-being
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WGD0y0SxWl4/090728123054.htm
A new study by psychologists finds that in the aftermath of national trauma, the ability to make sense out of what happened has implications for individual well-being and that the kinds of stories people tell about the incident predict very different psychological outcomes for them.
Fri, 31 Jul 09
Mercury Released By Dental Amalgam Fillings Are Not High Enough To Cause Harm, FDA Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/r_nFkEjxVN0/090730090438.htm
The U.S. Food and Drug Administration has issued a final regulation classifying dental amalgam and its component parts -- elemental mercury and a powder alloy -- used in dental fillings. While elemental mercury has been associated with adverse health effects at high exposures, the levels released by dental amalgam fillings are not high enough to cause harm in patients.
Fri, 31 Jul 09
Key To Malaria Susceptibility In Children Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AX8P6fUpTvk/090727203743.htm
Researchers have solved the mystery of why some children are more susceptible to malaria infection and anemia. These novel findings suggest that some children who are exposed to Plasmodium falciparum malaria before birth become tolerant to the malaria parasites, or their soluble products. This tolerance, which persists into childhood, reduces the ability of the immune system to attack and destroy parasites and increases the susceptibility of these children to develop a malaria infection.
Fri, 31 Jul 09
Scientists Study How To Stack The Deck For Organic Solar Power
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hL7Mqs6eSak/090729121704.htm
A new class of economically viable solar power cells has come a step closer to reality. Scientists have deepened their understanding of the complex organic films at the heart of the devices.
Fri, 31 Jul 09
Two Studies On Polycystic Ovarian Syndrome Shed Light On Its Causes And Its Effect On Brothers Of Women With The Condition
http://feeds.sciencedaily.com/~r/sciencedaily/~3/W0obu8RzhIk/090630075307.htm
Researchers have found evidence that chronic disease in either a mother or father can create unfavorable conditions in the womb that are associated with the development of polycystic ovarian syndrome (PCOS) in daughters. In another study, researchers found that brothers of women with PCOS and insulin resistance are themselves at greater risk of developing insulin resistance or diabetes, suggesting that factors associated with the condition can be passed down to sons as well as daughters.
Fri, 31 Jul 09
Index Insurance Has Potential To Help Manage Climate Risks And Reduce Poverty
http://feeds.sciencedaily.com/~r/sciencedaily/~3/stslf26a2qs/090624093313.htm
A type of insurance called index insurance offers significant opportunities as a climate-risk management tool in developing countries, according to a new article.
Fri, 31 Jul 09
Genetic Tests Advertised Directly To The Consumer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uY-fA5sUQz4/090721122853.htm
Genetic testing services have recently begun to be advertised directly to the patient, and the results of the consumers' response can affect public health, as well as the future adoption of pharmacogenetic/genomic testing, according to a new article.
Thu, 30 Jul 09
Wind Estimate 'Shortens' Saturn's Day By Five Minutes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7LyJ1K21A4s/090729145728.htm
A new way of detecting how fast large gaseous planets are rotating suggests Saturn's day lasts 10 hours, 34 minutes and 13 seconds -- over five minutes shorter than previous estimates that were based on the planet's magnetic fields.
Thu, 30 Jul 09
'Corrective Genes' Closer Due To Enzyme Modification
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SpqtFypQgDs/090728111410.htm
Scientists have re-engineered a human enzyme, a protein that accelerates chemical reactions within the human body, to become highly resistant to harmful agents such as chemotherapy.
Thu, 30 Jul 09
E-Noses: Testing Their Mettle Against Fly Noses
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Hj4_JONylt4/090729092541.htm
Scientists have developed a new system for comparing the sensory performance of electronic noses against that of the fly -- a breakthrough which should lead to improved e-nose performance.
Thu, 30 Jul 09
Smoking Increases Potential For Metastatic Pancreatic Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wEjFbRSbccg/090727135539.htm
Smoking has once again been implicated in the development of advanced cancer. Exposure to nicotine by way of cigarette smoking may increase the likelihood that pancreatic ductal adenocarcinoma will become metastatic, according to new research.
Thu, 30 Jul 09
Game Utilizes Human Intuition To Help Computers Solve Complex Problems
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uOsTSZ5WsZ0/090728104320.htm
A new computer game prototype combines work and play to help solve a fundamental problem underlying many computer hardware design tasks.
Thu, 30 Jul 09
When It Comes To Going Green, People Want Smaller Gains Now, Not Bigger Gains Later
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YXxShS8O-Ws/090729155817.htm
People make environmental choices the same way they manage money, preferring smaller gains right away to bigger gains later, according to new research.
Thu, 30 Jul 09
Scientists Create Energy-burning Brown Fat In Mice
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ou6Hxwd4hdU/090729132109.htm
Researchers have shown that they can engineer mouse and human cells to produce brown fat, a natural energy-burning type of fat that counteracts obesity. If such a strategy can be developed for use in people, the scientists say, it could open a novel approach to treating obesity and diabetes.
Thu, 30 Jul 09
New Chlamydia Test Offers Rapid, Pain-free Test For Men
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7N5phBtzEJg/090728201741.htm
A new urine test will allow doctors to diagnose chlamydia infection in men within the hour, improving the ability to successfully treat the infection on the spot and prevent re-transmission.
Thu, 30 Jul 09
Organic Food Not Nutritionally Better Than Conventionally-produced Food, Review Of Literature Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jJ4Y7NQ35wY/090729103728.htm
There is no evidence that organically produced foods are nutritionally superior to conventionally produced foodstuffs, according to a new study.
Thu, 30 Jul 09
Reprogrammed Role For The Androgen Receptor
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CAwIcVYVFg8/090727135530.htm
The androgen receptor -- a protein ignition switch for prostate cancer cell growth and division -- is a master of adaptability. When drug therapy deprives the receptor of androgen hormones, thereby halting cell proliferation, the receptor manages to find an alternate growth route. A new study demonstrates how.
Thu, 30 Jul 09
Physicists Find Way To Explore Microscopic Systems Through Holographic Video
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uCW9y443zsA/090720111450.htm
Physicists have developed a technique to record 3-D movies of microscopic systems, such as biological molecules, through holographic video. The work has potential to improve medical diagnostics and drug discovery.
Thu, 30 Jul 09
Safety Of Combat Military Vehicles Examined
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8Ae9RP3Ixjk/090729121700.htm
An academic is working on research that could help protect the lives of military based in Afghanistan. He has been testing how safe vehicles with titanium alloys are when attacked by bullets or explosions.
Thu, 30 Jul 09
Nanotubes May Reach A Meter Long With New Technique
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LJcmZzJT-aQ/090729144030.htm
Scientists have developed a method for making "odako," bundles of single-walled carbon nanotubes named for the traditional Japanese kites they resemble. It may lead to a way to produce meter-long strands of nanotubes, which by themselves are no wider than a piece of DNA.
Thu, 30 Jul 09
Male Germ Cells Can Be Directly Converted Into Other Cell Types
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yTjp5CXoE9U/090728145224.htm
Researchers have found a way to directly convert spermatogonial stem cells, the precursors of sperm cells, into tissues of the prostate, skin and uterus.
Thu, 30 Jul 09
Physicists Show Way To Count Sweets In A Jar -- From Inside The Jar
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YTrtkzq-d_Y/090729132105.htm
The question of how many sweets are in a jar depends on the shapes and sizes of the sweets, the size of the jar, and how it is filled. Guessing the number of sweets in the jar is difficult because the sweets located at the center of the jar are hidden from view and can't be counted. Researchers have now determined how sweets pack from inside the jar, making it easier to more accurately count them.
Thu, 30 Jul 09
Study Of Pulmonary Hypertension Treatment In Sickle Cell Patients Stopped Early Due To Safety Concerns
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IM_sevG4-QE/090728123043.htm
The National Heart, Lung and Blood Institute of the NIH has stopped a clinical trial testing a drug treatment for pulmonary hypertension in adults with sickle cell disease nearly one year early due to safety concerns. In an interim review of safety data, researchers found that participants taking sildenafil (Revatio) were significantly more likely to have serious medical problems. The most common problem was episodes of severe pain called sickle cell crises. No deaths have been associated with the drug in the clinical trial.
Thu, 30 Jul 09
Science Adopts A New Definition Of Seawater
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wT-EQhpagEI/090720102012.htm
The world's peak ocean science body has adopted a new definition of seawater developed by scientists to make climate projections more accurate.
Thu, 30 Jul 09
Rates Of Severe Childhood Obesity Have Tripled
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LpQ7BxNqV7U/090729121708.htm
Rates of severe childhood obesity have tripled in the last 25 years, putting many children at risk for diabetes and heart disease, according to a new report.
Thu, 30 Jul 09
Adult Brain Can Change Within Seconds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iw9nVcY0k3E/090714203442.htm
The human brain can adapt to changing demands even in adulthood, but neuroscientists have now found evidence of it changing with unsuspected speed. Their findings suggest that the brain has a network of silent connections that underlie its plasticity.
Thu, 30 Jul 09
Nanotech Particles Affect Brain Development In Mice
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Gzy7ueeSJiU/090728201737.htm
Maternal exposure to nanoparticles of titanium dioxide (TiO2) affects the expression of genes related to the central nervous system in developing mice. Researchers found that mice whose mothers were injected with the nanoparticles while pregnant showed alteration in gene expression related to neurological dysfunction.
Thu, 30 Jul 09
Little-known Protein Found To Be Key Player in Building and Maintaining Healthy Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JbbS079iIaI/090729121607.htm
Scientists have found that a little-understood protein previously implicated in a rare genetic disorder also plays critical role in building and maintaining healthy cells. Even more surprising, is that the protein builds structures by fusing intracellular membranes in a fundamentally new way.
Thu, 30 Jul 09
New Drug For Children With High-risk Leukemia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/p8nKjA1O_fw/090728123052.htm
New research has indicated a drug already in clinical trials for a blood disease common in adults may be relevant for acute childhood leukemia.
Thu, 30 Jul 09
Floating Docks Designed To Harness Clean Energy For NYC
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3VXNMnE0VCs/090714165104.htm
An architecture professor with an architecture student has designed a network of modular floating docks to harness clean energy for New York City. According the the designers, the tidal action of New York City rivers would be strong enough to run the system. The docking stations would plug into the conventional piers of New York City. Eventually, the piers would be extended further into the river to optimize clean energy generation while increasing public green space and tidal pools for wildlife.
Thu, 30 Jul 09
Overconfidence Among Teenage Students Can Stunt Crucial Reading Skills
http://feeds.sciencedaily.com/~r/sciencedaily/~3/s85hKOjekhM/090729140923.htm
Too much confidence among teenage students can be harmful. In a study that reinforces the danger of indiscriminately bolstering a child's self esteem -- whether the child earns that distinction or not -- the results show a clear connection between overconfident students and low reading comprehension, and suggest recommendations for parents and teachers.
Thu, 30 Jul 09
Discovery Of Elephants' Oldest Known Relative
http://feeds.sciencedaily.com/~r/sciencedaily/~3/60U89oIdDPM/090626084425.htm
Paleontologists have discovered one of the oldest modern ungulates related to the elephant order.
Thu, 30 Jul 09
Early Warning: Key Alzheimer's Brain Changes Observed In Unimpaired Older Humans
http://feeds.sciencedaily.com/~r/sciencedaily/~3/V4qgAN-5Oko/090729121548.htm
New research has uncovered an early disruption in the process of memory formation in older humans who exhibit some early brain changes associated with Alzheimer's disease but show little or no memory impairment. The work sheds light on the role of amyloid protein in memory impairment and may lead to development of strategies for predicting and treating cognitive decline in individuals who are at-risk for AD.
Thu, 30 Jul 09
'Shrimp Shell Cocktail' To Fuel Cars And Trucks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RMwTd9ZE4kk/090729103734.htm
Call it a "shrimp cocktail" for your fuel tank. Scientists are reporting development of a catalyst made from shrimp shells that could transform production of biodiesel fuel into a faster, less expensive, and more environmentally friendly process.
Thu, 30 Jul 09
Important Insight Into Apoptosis Or Programmed Cell Death
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xmi-xA4i52o/090714104004.htm
Researchers have gained a better understanding of the process that cells go through when they die. This process known as "apoptosis" or programmed cell death, is a normal process in the human body which removes perhaps a million cells a second.
Thu, 30 Jul 09
Capturing Images In Non-traditional Way
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WdU9_7F4KPM/090714165100.htm
New research in imaging may lead to advancements for the Air Force in data encryption and wide-area photography with high resolution.
Thu, 30 Jul 09
Cancers Set To 'Explode' In Latino/a Populations, Researcher Says
http://feeds.sciencedaily.com/~r/sciencedaily/~3/s7jFH-0fxI0/090729140925.htm
The Latino/a population in the United States is expected to triple by 2050. And with that growth, says a professor, will come a rise in the number of individuals from that population who are diagnosed with cancer. To better serve the needs of this population, with respect to cancer prevention, detection and treatment, she said, improvements must be made in two areas: knowledge and access.
Thu, 30 Jul 09
Synchronized Swimming Of Algae
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Q4F2fBEwG0c/090723142044.htm
Using high-speed cinematography, scientists have discovered that individual algal cells can regulate the beating of their flagella in and out of synchrony in a manner that controls their swimming trajectories.
Thu, 30 Jul 09
Biomarkers May Help Predict Risk Of Alzheimer's Disease In Patients With Mild Cognitive Impairment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ENn2iABAkzs/090721163106.htm
Several cerebrospinal fluid biomarkers showed good accuracy in identifying patients with mild cognitive impairment who progressed to Alzheimer's disease, according to a new study.
Thu, 30 Jul 09
NOAA Bans Commercial Harvesting Of Krill
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QQwlyTb7JlA/090713160525.htm
The National Oceanic and Atmospheric Administration has published a final rule in the Federal Register prohibiting the harvesting of krill in the Exclusive Economic Zone off the coasts of California, Oregon, and Washington. The rule goes into effect on August 12, 2009. Krill are a small shrimp-like crustacean and a key source of nutrition in the marine food web.
Thu, 30 Jul 09
Brazil Proves Developing Countries Can Use Generic Medicines To Fight HIV/AIDS Epidemic
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SnAKOuvQ4Fw/090714085814.htm
Researchers say Brazil's push for inexpensive, low-cost HIV and AIDS treatments has helped contain the virus during the last 20 years.
Thu, 30 Jul 09
GOES-O Satellite Reaches Orbit And Renamed GOES-14
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bF9BpfotskE/090710121543.htm
On June 27, 2009, the Geostationary Operational Environmental Satellite, GOES-O, soared into space during a spectacular launch from the Cape Canaveral Air Force Station in Florida. GOES-O has now been renamed and its solar array has been deployed.
Thu, 30 Jul 09
Mental, Emotional And Behavioral Disorders Can Be Prevented In Young People
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cLfA8A741l4/090729144028.htm
Around one in five young people in the U.S. have a current mental, emotional, or behavioral disorder. About half of all adults with mental disorders recalled that their disorders began by their mid-teens and three-quarters by their mid-20s. Early onset of mental health problems have been associated with poor outcomes such as failure to complete high school, increased risk for psychiatric and substance problems, and teen pregnancy.
Thu, 30 Jul 09
Study Catches Two Bird Populations As They Split Into Separate Species
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oQ--dwLh1QA/090714104000.htm
A new study finds that a change in a single gene has sent two closely related bird populations on their way to becoming two distinct species. The study is one of only a few to investigate the specific genetic changes that drive two populations toward speciation.
Thu, 30 Jul 09
Reducing Levels Of Specific Protein Delays Aging Of Multiple Tissues In Lab Mice
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4RMdHPE5-0A/090721144637.htm
Partial inactivation of p38MAPK protein was sufficient to prevent age-induced cellular changes in multiple tissues, as well as improve the proliferation and regeneration of islet cells, without affecting the tumor suppressor function of p16 in mice.
Thu, 30 Jul 09
Andean Salars: Reflections Of Earth And Climate History
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EFZV3dqs-Ng/090721090226.htm
Vast mirrors send reflections of snow-topped volcanic cones and lunar landscapes are fringed with giant cacti, the only remaining representatives of plant life. The salars, salt-crust deserts perched 4000 m high on the Andes of Bolivia, Argentina and Chile, have a fascinating beauty. And are extreme hostile environments. However, they also captivate scientists owing to the information they hold within them.
Thu, 30 Jul 09
Factors That Increase Death In Stroke Patients Ages 15 To 49 identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/relMH0yR4mY/090709170754.htm
Heavy drinking, heart failure, cancer, type 1 diabetes and preceding infection were identified as predictors of death among stroke patients 15 to 49 years old.
Thu, 30 Jul 09
Systems Biology Recommended As A Clinical Approach To Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/P_AkFf1Q_Gs/090709110838.htm
Bioinformatics specialists are advocating the use of systems biology as an innovative clinical approach to cancer. This approach could result in the development of improved diagnostic tools and treatment options, as well as potential new drug targets to help combat the many potentially fatal types of the disease.
Thu, 30 Jul 09
Video Game Minority Report: Lots Of Players, Few Characters
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hHkPzPenmRk/090729140931.htm
The first comprehensive census of video game characters finds Latinos nearly invisible and women and other groups underrepresented. Combined with wide reach of video games and heavy play by minorities, findings suggest lack of representation in games may have significant social impacts.
Thu, 30 Jul 09
Jellyfish And Other Small Sea Creatures Linked To Large-scale Ocean Mixing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uBE11EGUQ44/090729132107.htm
Using a combination of theoretical modeling, energy calculations, and field observations, researchers have for the first time described a mechanism that explains how some of the ocean's tiniest swimming animals can have a huge impact on large-scale ocean mixing.
Thu, 30 Jul 09
Comprehensive Look At Rare Leukemia Finds Relatively Few Genetic Changes Launch Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VgjIklHLVj4/090727192026.htm
The most comprehensive analysis yet of the genome of childhood acute myeloid leukemia found only a few mistakes in the genetic blueprint, suggesting the cancer arises from just a handful of missteps, according to new findings.
Thu, 30 Jul 09
Cytoplasmic Talk Of Retroviruses, Such As HIV, Helps Them Spread From Cell To Cell
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UcASXeBJAME/090727203620.htm
Retroviruses such as HIV that are already within cells are much more easily transmitted when they are next to uninfected cells than if they are floating free in the bloodstream. Now, researchers have made movies of viral activity within cells that help explain why cell-to-cell transmission is so efficient and provide potential targets for a new generation of AIDS drugs.
Thu, 30 Jul 09
Anesthesia Not Harmful For Babies During Birth Process, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/thFt0klf7-Y/090727192024.htm
Researchers have found that children exposed to anesthesia during cesarean section are not at any higher risk for learning disabilities later in life than children not delivered by C-section.
Thu, 30 Jul 09
The 15-Minute Genome: Faster, Cheaper Genome Sequencing On The Way
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7mZCE-6TDU0/090727191912.htm
In the race for faster, cheaper ways to read human genomes, Pacific Biosciences is hoping to set a new benchmark with technology that watches DNA being copied in real time. The device is being developed to sequence DNA at speeds 20,000 times faster than second-generation sequencers currently on the market and will ultimately have a price tag of $100 per genome.
Thu, 30 Jul 09
Adult Cancer Survivors At Increased Risk Of Psychological Distress
http://feeds.sciencedaily.com/~r/sciencedaily/~3/y246QkNDMU4/090727191720.htm
Long-term survivors of cancer that developed in adulthood are at increased risk of experiencing serious psychological distress, according to a new report.
Wed, 29 Jul 09
Common Food Dye May Hold Promise In Treating Spinal Cord Injury
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7Jdva_ShfzU/090727191249.htm
A common food additive that gives M&Ms and Gatorade their blue tint may offer promise for preventing the additional -- and serious -- secondary damage that immediately follows a traumatic injury to the spinal cord. In the study, researchers report that the compound Brilliant Blue G stops the cascade of molecular events that cause damage to the spinal cord in the hours following an injury.
Wed, 29 Jul 09
Smokeless Tobacco Safer Than Smoking, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DCKFBK5W9wQ/090728201734.htm
Smokeless tobacco products, as used in Europe and North America, do not appear to increase cancer risk. A large meta-analysis has shown that snuff as used in Scandinavia has no discernible effect on the risk of various cancers. Products used in the past in the US may have increased the risk, but any effect that exists now seems likely to be quite small.
Wed, 29 Jul 09
Extinction Crisis Looms In Oceania
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IcgaXjr7N5g/090728102301.htm
Governments must act urgently to halt loss of habitats and invading species that are posing major threats to biodiversity and causing species extinctions across Australia, New Zealand and the Pacific Islands, according to a new study.
Wed, 29 Jul 09
Scientists Track Impact Of DNA Damage In The Developing Brain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bNOeldPGkU8/090727113056.htm
Switching off a key DNA repair system in the developing nervous system is linked to smaller brain size as well as problems in brain structures vital to movement, memory and emotion, according to new research.
Wed, 29 Jul 09
Gulf Of Mexico Dead Zone Smaller Than Expected, But Severe
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6MC06opoLak/090727102036.htm
Scientists have found the size of this year's Gulf of Mexico dead zone to be smaller than forecasted, measuring 3,000 square miles. However the dead zone, which is usually limited to water just above the sea floor, was severe where it did occur, extending closer to the water surface then in most years.
Wed, 29 Jul 09
Yawn Alert For Weary Drivers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SQXlHwpQBTc/090727102042.htm
A new system that can tell when you are yawning and could prevent road traffic accidents.
Wed, 29 Jul 09
After Dinosaurs, Mammals Rise But Their Genomes Get Smaller
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zJglXvOd70c/090727191919.htm
Evidence buried in the chromosomes of animals and plants strongly suggests only one group -- mammals -- have seen their genomes shrink after the dinosaurs' extinction. What's more, that trend continues today.
Wed, 29 Jul 09
Cancer Vaccines Led To Long-term Survival For Patients With Metastatic Melanoma
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1qf1Ji1o_x0/090728123049.htm
Medical researchers have released promising data from a clinical study showing patient-specific cancer vaccines derived from patients' own cancer cells and immune cells were well tolerated and resulted in impressive long-term survival rates in patients with metastatic melanoma whose disease had been minimized by other therapies.
Wed, 29 Jul 09
Nanotubes Spin As They Grow
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SdSWfKfzUPY/090727110643.htm
New research showing the atom-by-atom growth of carbon nanotubes reveals they spin stepwise as they grow, much like a ticking clock. The research provides the first experimental evidence of how individual atoms are added to growing nanotubes.
Wed, 29 Jul 09
Discovery To Aid In Future Treatments Of Third-world Parasites
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3AxYM4glrvk/090727143700.htm
Schistosomiasis, one of the most important of the neglected tropical diseases, is caused by infection with parasitic helminths of the genus Schistosoma. These parasites are long lived and dwell within blood vessels, where they produce eggs that become the focus of intense, chronic inflammatory responses. In severe cases, this inflammation is associated with life-threatening liver disease.
Wed, 29 Jul 09
New Supercomputer To Reel In Answers To Some Of Earth's Problems
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rO54vN67o38/090727110637.htm
The newest supercomputer in town is almost 15 times faster than its predecessor and ready to take on problems in areas such as climate science, hydrogen storage and molecular chemistry. The $21.4 million Chinook supercomputer was built by HP, tested by a variety of researchers, and has now been commissioned for use.
Wed, 29 Jul 09
Under A Cloud: Darkness Linked To 'Brain Drain' In Depressed People
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yZ-D8obQ5Vw/090727191728.htm
A lack of sunlight is associated with reduced cognitive function among depressed people. Researchers used weather data from NASA satellites to measure sunlight exposure across the United States and linked this information to the prevalence of cognitive impairment in depressed people.
Wed, 29 Jul 09
First Vertebrate To Live In Trees Described
http://feeds.sciencedaily.com/~r/sciencedaily/~3/92n3U8LzGno/090728201732.htm
In the Late Paleozoic (260 million years ago), long before dinosaurs dominated the Earth, ancient precursors to mammals took to the trees to feed on leaves and live high above predators that prowled the land, a paleontologist has concluded. Elongated fingers, an opposable "thumb," and a grasping tail of Suminia getmanovi demonstrate that this small plant-eating synapsid is the earliest known tree-climbing vertebrate.
Wed, 29 Jul 09
How The Pathology Of Parkinson's Disease Spreads
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gvN5NqVsc0s/090727191914.htm
Accumulation of the synaptic protein alpha-synuclein, resulting in the formation of aggregates called Lewy bodies in the brain, is a hallmark of Parkinson's and other related neurodegenerative diseases. This pathology appears to spread throughout the brain as the disease progresses. Now, researchers have described how this mechanism works.
Wed, 29 Jul 09
How Immune Cells May Help Predict Alzheimer's Risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7T-QotRYIY8/090713124714.htm
UCLA scientists have discovered a way to measure the amount of amyloid beta that is being absorbed by immune cells in the blood. Amyloid beta forms the plaques considered the hallmark of Alzheimer's disease, and if the immune system isn't adequately clearing amyloid beta, it may indicate Alzheimer's risk, according to the researchers.
Wed, 29 Jul 09
Proper Placement Of Defibrillators Key To Effective Use
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Pu4y_PkGZjw/090727191904.htm
Placing automated external defibrillators in schools can save the lives of student-athletes and non-students who suffer sudden cardiac arrest on school grounds, according to a new study. However, schools need a response plan along with the lifesaving equipment. In a separate Danish study, researchers found that almost 70 percent of all out-of-hospital cardiac arrests in public places could be covered by strategic placement of AEDs within a limited area of a city center and with acceptable costs.
Wed, 29 Jul 09
New Method Uses Electrolyzed Water For More Efficient Fuel Production
http://feeds.sciencedaily.com/~r/sciencedaily/~3/m7H46wvSjig/090727135532.htm
Using electrolyzed water rather than harsh chemicals could be a more effective and environmentally friendly method in the pretreatment of ethanol waste products to produce an acetone-butanol-ethanol fuel mix, according to new research.
Wed, 29 Jul 09
New Links Between Lucid Dreaming And Psychosis Could Revive Dream Therapy In Psychiatry
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZO9f5QnSTD0/090728184831.htm
Similarities in brain activity during lucid dreaming and psychosis suggest that the previously discredited technique of dream therapy may be useful in psychiatric treatment, according to a European Science Foundation workgroup. People suffering from nightmares can sometimes be treated by training them to dream lucidly so they can consciously wake up.
Wed, 29 Jul 09
Scientists Expect Wildfires To Increase As Climate Warms In Coming Decades
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TauqHYW1Vmg/090728123047.htm
As the climate warms in the coming decades, atmospheric scientists expect that the frequency of wildfires will increase in many regions. The spike in the number of fires could also adversely affect air quality due to the greater presence of smoke.
Wed, 29 Jul 09
Scientists Closer To Making Implantable Bone Material
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OROAHOV7omU/090726150838.htm
Scientists are closer to understanding how to grow replacement bones with stem cell technology.
Wed, 29 Jul 09
Bird Population Declines In Northern Europe Explained By Thiamine (Vitamin B1) Deficiency
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_RaZPS4SMAA/090714154921.htm
Wild birds of several species are dying in large numbers from a paralytic disease with hitherto unknown cause in the Baltic Sea area. A research team has demonstrated strong relationships between this disease, breeding failure, and advanced thiamine (vitamin B1) deficiency in eggs, young, and adults.
Wed, 29 Jul 09
Endoscopic Surgery As Effective Open Surgery For Nasal Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iHagUHaA4Bc/090707131832.htm
Researchers have shown that endoscopic surgery is a valid treatment option for treating esthesioneuroblastoma (cancer of the nasal cavity), in addition to traditional open surgery and nonsurgical treatments.
Wed, 29 Jul 09
New Predictions For Sea Level Rise
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7TY2UNjI19U/090727091838.htm
Fossil coral data and temperature records derived from ice-core measurements have been used to place better constraints on future sea level rise, and to test sea level projections.
Wed, 29 Jul 09
Weight Loss Improves Mood In Depressed People, New Research Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sTuagXBFvF0/090727102028.htm
After a six-month behavioral weight loss program, depressed patients not only lost 8 percent of their initial weight but also reported significant improvements in their symptoms of depression, as well as reductions in triglycerides, which are a risk factor for heart disease and stroke, new research shows. The results of this study highlight the need for further research into the effects of weight loss in individuals suffering from psychiatric disorders.
Wed, 29 Jul 09
More To Bats' Vision Than Meets The Eye
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Qeo48NvDB-o/090727203745.htm
The eyes of nocturnal bats possess two spectral cone photoreceptor types for daylight and color vision. Scientists have detected cones and their visual pigments in two flower-visiting species of bat.
Wed, 29 Jul 09
Few Patients Die From Prostate Cancer Within 15 Years Of Radical Prostatectomy, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ioOXy9Cjn3U/090727191258.htm
Researchers have completed the first large-scale, multi-institutional study of prostate cancer death after standard treatment to remove the prostate since PSA screening has become widely used as a method to screen for the disease. In the study, researchers found that in a group of 12,677 men who had radical prostatectomies between 1987 and 2005, the fifteen-year mortality rate that could be directly linked to prostate cancer was only 12 percent, even though many of the patients' cancers had aggressive features.
Wed, 29 Jul 09
HIV Uses Autophagy For Its Own Means
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-FstCrNAchA/090727091834.htm
Not satisfied with simply thwarting its host's defensive maneuvers, HIV actually twists one to its advantage, based on new findings. Researchers suggest that autophagy -- a stress response process -- helps HIV to proliferate and that conversely, blocking autophagy lessens HIV production.
Wed, 29 Jul 09
In Vitro Antibody Production Enables HIV Infection Detection In Window Period -- Key To Safer Blood
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3bOyjd5AjeE/090724102917.htm
Researchers have shown that the contribution of variable degrees of immune suppression, either due to existing chronic infections such as parasitemias and/or nutrition, in different populations may influence and prolong the serological-diagnostic window period of HIV. However, the immunosuppression can be overcome, by in-vitro enhancement of antibody production.
Wed, 29 Jul 09
Can Pen And Paper Help Make Electronic Medical Records Better?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/N4wsl_8vvao/090720134509.htm
A new study reports that pen and paper workarounds employed by health-care providers who use an electronic medical record system may help make electronic medical records even more useful to health-care providers and the patients they serve.
Wed, 29 Jul 09
Homicide By Mentally Ill Has Risen In England And Wales
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EO_uoC1s9sg/090728201746.htm
The number of people killed by individuals suffering from mental illness in England and Wales increased between 1997 and 2005, new figures show. The rise occurred in people who were not under mental health care and was not found in mental health patients.
Wed, 29 Jul 09
Do You Believe In 'Tooth Worms?' Micro-images Of Strange, Worm-like Structures Uncovered Inside Dissected Molar
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aPqBSMrV1kQ/090727205901.htm
New, micro-images of strange, worm-like structures uncovered inside a dissected molar might have been held in ancient times as proof that gnawing tooth worms were the cause of tooth decay, a theory widely believed in many cultures before modern times. The structures are not worms, but what they are is still in question.
Wed, 29 Jul 09
Tumor 'Stem-like Cells' Exist In Benign Tumors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0aQzPXMwLbU/090723113707.htm
Cancer stem-like cells have been implicated in the genesis of a variety of malignant cancers. Research scientists have now isolated stem-like cells in benign (pituitary) tumors and used these "mother" cells to generate new tumors in laboratory mice. Targeting the cells of origin is seen as a possible strategy in the fight against malignant and benign tumors.
Wed, 29 Jul 09
The Virus That Binds: A Novel Idea Marries Biology And Mining
http://feeds.sciencedaily.com/~r/sciencedaily/~3/E1IuD9aOzm0/090722100018.htm
Researchers often make progress by applying a proven scientific method from one realm to another, connecting seemingly disparate disciplines. Such interdisciplinary approaches are powerful tools in the drive for scientific innovation. But who would ever dream of applying viruses to mining?
Wed, 29 Jul 09
Disturbed Calcium Signaling May Play Critical Role In Brain Cell Degeneration
http://feeds.sciencedaily.com/~r/sciencedaily/~3/l9svAKJtOC0/090722142826.htm
Scientists have found strong evidence that abnormal calcium signaling in neurons may play an important role in the development of spinocerebellar ataxia type 2 (SCA2), a disorder causing progressive loss of coordination, speech difficulty and abnormal eye movements.
Wed, 29 Jul 09
Elevated Mercury Levels In Prairie Lakes Examined
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1c6OCteZU8Q/090706150148.htm
Prairie lakes that expand greatly in area during wet cycles are more likely to have elevated mercury levels soon after, research suggests.
Wed, 29 Jul 09
Teen Pregnancy May Be Symptom, Not Cause, Of Emotional Distress
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5K5MVE_6HiI/090727204829.htm
It would make sense that teenage mothers have a lot of psychological stress in their lives, but a new study shows that the distress comes before the pregnancy, not because of it.
Wed, 29 Jul 09
Researcher Sheds Light On 'Man-eating' Squid; Finds Them Timid, Non-threatening
http://feeds.sciencedaily.com/~r/sciencedaily/~3/t_RG60jdT8E/090723113516.htm
Recent news reports about scuba divers off San Diego being menaced by large numbers of Humboldt's or jumbo squid have raised the ire of a University of Rhode Island biologist. As a leading expert on the species who has dived with them several times, he calls the reports "alarmist" and says the squid's man-eating reputation is seriously overblown.
Wed, 29 Jul 09
Researchers Rapidly Turn Bacteria Into Biotech Factories
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8bwmWQuywqI/090726150835.htm
Using a novel cell programming method that retools evolution to generate genetic diversity at an unprecedented rate, a research team turned self-serving bacteria into efficient factories for making a variety of compounds, accomplishing in just three days a feat that would take biotech companies many months -- or years. The transformed bacteria produced five times more lycopene (an anticancer antioxidant) than the original bacteria.
Wed, 29 Jul 09
New Silver Nanoparticle Skin Gel For Healing Burns
http://feeds.sciencedaily.com/~r/sciencedaily/~3/N0SwCoulSBA/090722110856.htm
Scientists are reporting successful laboratory tests of a new and potentially safer alternative to silver-based gels applied to the skin of burn patients to treat infections. The researchers describe gel composed of silver nanoparticles -- each 1/50,000th the width of a human hair -- that appears more effective than these traditional gels.
Wed, 29 Jul 09
Vi Typhoid Vaccine Proves Highly Effective In Young Children, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aSRznoF0eEU/090722191212.htm
A currently available yet underused vaccine against typhoid fever is highly effective in young children and protects unvaccinated neighbors of vaccinees, according to new research.
Wed, 29 Jul 09
Why North America Black Cherry Tree Is Invasive In Europe
http://feeds.sciencedaily.com/~r/sciencedaily/~3/P7WS464mvqE/090719185452.htm
Black cherry trees, native to the United States, are an invasive species in Europe and thrive in that part of the world. Experiments show why: A soil-borne pathogen keeps these trees in check in the United States, but is too weak to stop them from spreading in Europe.
Wed, 29 Jul 09
How The Carrot Approach Facilitates Learning
http://feeds.sciencedaily.com/~r/sciencedaily/~3/i7iBYy1uXFM/090727203624.htm
People who are rewarded for making correct decisions learn quickly. While the "carrot" approach may produce favorable results, little is understood about how rewards facilitate the learning process.
Wed, 29 Jul 09
How Saturn's Moon Got Its Stripes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DbWY0KpdhKY/090715101432.htm
A new study has revealed the origins of tiger stripes and a subsurface ocean on Enceladus -- one of Saturn's many moons. These geological features are believed to be the result of the moon's unusual chemical composition and not a hot core, shedding light on the evolution of planets and guiding future space exploration.
Wed, 29 Jul 09
Common Allergy Drug Reduces Obesity And Diabetes In Mice
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nr9vWjMdAlY/090726150833.htm
Two new studies connect the immune system with obesity and type 2 diabetes. In the first study, researchers used two common over-the-counter allergy medications known to stabilize a group of inflammatory immune cells to reduce obesity and symptoms of type 2 diabetes in mice. In the second study, researchers found that a kind of regulatory white blood cell once thought to manage only immune cells also controls inflammation in non-obese fat tissue.
Wed, 29 Jul 09
Population Of Nearly Extinct Mountain Yellow-Legged Frog Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/G6B0kJhvtlc/090726093404.htm
For the first time in nearly 50 years, a population of a nearly extinct frog has been rediscovered in the San Bernardino National Forest's San Jacinto Wilderness. Biologists retracing a 1908 natural history expedition rediscovered the rare mountain yellow-legged frog.
Wed, 29 Jul 09
Eliminating Cell Receptor Prevents Infection In Animal Study
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8CR4Ugrp4OY/090722120822.htm
New research from the Children's Hospital of Philadelphia sheds light on the role of cell receptors in acting as gatekeepers for infectious viruses. By using mice genetically engineered to lack a particular receptor in heart and pancreas cells, the study team prevented infection by a common virus (Group B coxsackievirus) that causes potentially serious diseases in humans.
Wed, 29 Jul 09
Understanding Quantum Turbulence: Controllable Formation Of Quantum Turbulence In Ultra-cold Atom Gas
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jpT9NeIchxY/090720082642.htm
Scientists in Brazil report the controllable formation of quantum turbulence in an ultra-cold atom gas. The research makes it easier to characterize quantum turbulence -- and potentially even classical turbulence -- because it is possible to tune many characteristics of the cold-atom gas.
Wed, 29 Jul 09
Cigarette Packaging Still Misleading Consumers Over Health Hazards
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hRRvzdt7jjY/090727191910.htm
New research suggests that current regulations have failed to remove misleading information from cigarette packaging, revealing that a substantial majority of consumers believe cigarettes are less hazardous when the packs display words such as "silver" or "smooth," lower numbers incorporated into the brand name, lighter colors or pictures of filters.
Tue, 28 Jul 09
Earliest Animals Lived In A Lake Environment, Research Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_lcGmOIKwkk/090727191732.htm
Researchers studying ancient rock samples in South China has found that the first animal fossils in the paleontological record are preserved in ancient lake deposits, not marine sediments as commonly assumed. The research gives scientists a glimpse into where some of the early animals lived and what the environmental conditions were like for them -- important information for addressing the broader questions of how and why animals appeared when they did.
Tue, 28 Jul 09
Intensive Glucose Control Halves Complications Of Longstanding Type 1 Diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5uHlSlj1pHY/090727191256.htm
Near-normal control of glucose beginning as soon as possible after diagnosis would greatly improve the long-term prognosis of type 1 diabetes, concludes a new study, which updates information about the clinical course of type 1 diabetes.
Tue, 28 Jul 09
Rethinking Brownian Motion With The 'Emperor's New Clothes'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/krtIdryn8ns/090727191300.htm
In the classic fairy tale, "The Emperor's New Clothes," Hans Christian Andersen uses the eyes of a child to challenge conventional wisdom and help others to see more clearly. In similar fashion, researchers have now revealed the naked truth about a classic bell-shaped curve used to describe the motion of a liquid as it diffuses through another material.
Tue, 28 Jul 09
Researchers Warn: 'Antivirals Might Be Wasted On The Elderly'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BzDTJ0JgEfQ/090727191726.htm
A model of influenza transmission and treatment suggests that, if the current swine flu pandemic behaves like the 1918 flu, antiviral treatment should be reserved for the young. Researchers found that, in this situation, providing the elderly with antiviral drugs would not significantly reduce mortality, and may lead to an increase in resistance.
Tue, 28 Jul 09
Key To Designing Quantum Information Networks: Quantum Memory And Turbulence In Ultra-cold Atoms
http://feeds.sciencedaily.com/~r/sciencedaily/~3/p5jnUX6m4FU/090720080904.htm
Scientists have figured out a key step toward the design of quantum information networks. A quantum network – in which memory devices that store quantum states are interconnected with quantum information processing devices – is a prototype for designing a quantum internet.
Tue, 28 Jul 09
Trade Liberalization Linked To Obesity In Central America
http://feeds.sciencedaily.com/~r/sciencedaily/~3/D4SHgR_nbns/090727191730.htm
Since trade liberalization between Central and North America, imports and availability of processed, high-fat and high-sugar foods have increased dramatically. Researchers link this influx of American junk food to a "nutrition transition" in Central American countries, with a growing burden diet-related chronic disease.
Tue, 28 Jul 09
'Brain-reading' Methods Developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/edxU-ohZdPY/090727140349.htm
It is widely known that the brain perceives information before it reaches a person's awareness. But until now, there was little way to determine what specific mental tasks were taking place prior to the point of conscious awareness. That has now changed.
Tue, 28 Jul 09
Nanodiamonds Deliver Insulin For Wound Healing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BFjw9ihlp_k/090727135525.htm
Using tiny nanodiamonds, researchers have demonstrated an innovative method for delivering and releasing insulin at a specific location over a period of time. The nanodiamond-insulin clusters hold promise for wound-healing applications and could be integrated into gels, ointments, bandages or suture materials.
Tue, 28 Jul 09
Unusual Effects On Cell Infected By Virus Found In Boiling Acidic Spring In Yellowstone National Park
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gkYNcB65nP8/090717150246.htm
Researchers have noted unusual effects on a cell infected by a virus collected from a boiling, acidic spring in Yellowstone.
Tue, 28 Jul 09
Genetic Testing May Be Valuable In Treating Colorectal Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZnGNaVWnD7M/090727110645.htm
A new cost-effectiveness study has determined that so-called pretreatment pharmacogenetic testing is only beneficial if dose-reduced treatment is shown to be nearly as effective as the full dose. If the lower dose is as effective, the test could prevent many cases of severe neutropenia, an abnormally low count of an important type of white blood cells known as neutrophils. It would also mean better life expectancy and lower cost of care.
Tue, 28 Jul 09
Sichuan Earthquake Destroyed Nearly A Quarter Of Panda Habitat Near Quake's Epicenter
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5jNbGSnNXC0/090727102034.htm
When the magnitude 8 Sichuan earthquake struck southern China in May 2008, it left more than 69,000 people dead and 4.3 million homeless. Now ecologists have added to these losses an assessment of the earthquake's impact on biodiversity. Researchers show that more than 23 percent of the pandas' habitat in the study area was destroyed, and fragmentation of remaining habitat could hinder panda reproduction.
Tue, 28 Jul 09
Personal Values Color Understanding Of Sentences Within Milliseconds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_NAf9U_zHpA/090727080838.htm
Moral-ethical and political beliefs color the way people read opinion questions. This ‘coloring’ process takes place well before people become aware of their answers to such questions. This phenomenon was recently discovered through brain measurements.
Tue, 28 Jul 09
Galaxy Zoo Hunters Help Astronomers Discover Rare 'Green Pea' Galaxies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yzT5CZWXYUg/090727135527.htm
A team of astronomers has discovered a group of rare galaxies called the "Green Peas" with the help of citizen scientists working through an online project called Galaxy Zoo. The finding could lend unique insights into how galaxies form stars in the early universe.
Tue, 28 Jul 09
Cancer's Distinctive Pattern Of Gene Expression Could Aid Early Screening And Prevention
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BR4B-2uEM0Y/090727110641.htm
Distinctive patterns of genes turned off -- or left on -- in healthy versus cancerous cells could enable early screening for many common cancers and maybe help avoid them scientists say.
Tue, 28 Jul 09
Major Arctic Sea-ice Formed Earlier Than Thought
http://feeds.sciencedaily.com/~r/sciencedaily/~3/96v3jMj7k-w/090715131435.htm
Significant sea ice formation occurred in the Arctic earlier than previously thought in Earth's geological history. "The results are also especially exciting because they suggest that sea ice formed in the Arctic before it did in Antarctica, which goes against scientific expectation," says one of the scientific team members.
Tue, 28 Jul 09
Key Event In Prostate Cancer Progression Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wfP-7p702Ys/090723141806.htm
Researchers have discovered how hormone-dependent prostate cancer advances to the incurable hormone-independent disease state. The study shows that in androgen-independent prostate cancer, androgen receptors are reprogrammed to regulate genes involved in a later phase of cell division. A small epigenetic change in a gene called UBE2C is responsible for this reprogramming. Increased expression of that gene correlated with progression to the hormone-independent phase.
Tue, 28 Jul 09
121 Breeding Tigers Estimated To Be Found In Nepal
http://feeds.sciencedaily.com/~r/sciencedaily/~3/b28D9lfPwYg/090727135537.htm
Biologists welcome the news of an estimated 121 breeding tigers in four protected areas in the Terai Arc Landscape of Nepal as announced by the government in Kathmandu, July 27, 2009.
Tue, 28 Jul 09
Divorce Undermines Health In Ways Remarriage Doesn't Heal
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FaHUp38eKT4/090727135523.htm
Divorce and widowhood have a lingering, detrimental impact on health, even after a person remarries, new research shows. "Among the currently married, those who have ever been divorced show worse health on all dimensions. Both the divorced and widowed who do not remarry show worse health on all dimensions," said the co-author of a new study on marriage and health.
Tue, 28 Jul 09
Observing Bacteria As They Infect A Living Host
http://feeds.sciencedaily.com/~r/sciencedaily/~3/s8ivdbU1TNY/090727113102.htm
Researchers have developed a new technique that allows them for the first time to make a movie of bacteria infecting their living host.
Tue, 28 Jul 09
Molecule Plays Early Role In Nonsmoking Lung Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/f-kXRDa9jUM/090727135535.htm
A new study suggests that a molecule called miR-21 is important in the development of lung cancer in never-smokers and in smokers. Lung tumors from never-smokers with mutations in a gene called EGFR had particularly high levels of the molecule. The findings may lead to improve targeted therapy for lung cancer, including tumors resistant to targeted drugs such as gefitinib.
Tue, 28 Jul 09
Tooth Gel: Healing Power Of Aloe Vera Proves Beneficial For Teeth And Gums, Too
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4kYrKgBiFHY/090717150300.htm
Aloe vera tooth gel is intended, like toothpaste, to eliminate disease-causing bacteria in the mouth. The ability of aloe vera tooth gel to do that successfully has been a point of contention for some dental professionals. The study compared the germ-fighting ability of a gel to two commercially popular toothpastes and revealed that the tooth gel was just as effective -- in some cases more effective -- as the commercial brands at controlling cavity-causing organisms.
Tue, 28 Jul 09
Surgery Remains An Option For Advanced Lung Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eG_w1nPsm98/090727080557.htm
Oncologists have debated whether patients with a certain type of advanced lung cancer would benefit from surgery. Now a major study has found that surgery can significantly prolong survival without progression of the cancer, but does not dramatically improve overall survival.
Tue, 28 Jul 09
Charging Ahead: Revealing Secrets Of Electricity-producing Materials
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kuZthui2SJU/090727113053.htm
Much like humans, materials are capable of some pretty remarkable things when placed under pressure. In fact, under the right conditions, materials can even produce electricity. Driven by the vision of our society one day being basically self-propelled, scientists have set out to both amplify and provoke that potential in materials known as piezoelectrics, which naturally produce electricity when literally subjected to strain.
Tue, 28 Jul 09
Most Older Long-term Cancer Survivors Have Poor Health Habits
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QXiqPVSwfzY/090727080549.htm
A new study finds that most older long-term cancer survivors who are interested in diet and exercise actually have poor health habits, and that those survivors who do exercise and watch their diet have improved physical health and quality of life.
Tue, 28 Jul 09
Chimps, Like Humans, Focus On Faces
http://feeds.sciencedaily.com/~r/sciencedaily/~3/j_VAuMFK5tw/090722191208.htm
A chimp's attention is captured by faces more effectively than by bananas. A series of experiments suggests that the apes are wired to respond to faces in a similar manner to humans.
Tue, 28 Jul 09
Anemia Increases Risk Of Death In The Very Elderly
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xQY-Q1ruaDM/090727135521.htm
Anemia in very elderly people aged 85 and older appears to be associated with an increased risk of death, according to a new study.
Tue, 28 Jul 09
Stem-Destroying Insect May Help Conquer Climbing Fern
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tshitvY7pc0/090719193026.htm
Throughout much of Florida's famed Everglades, an invasive, light-green vine called Old World climbing fern now cloaks the forest floor. Besides smothering shrubs and even small trees with its dense, spongy mats, the intrusive fern, known to scientists as Lygodium microphyllum, also forms soft, twining stems that climb tree trunks. Underneath this layer of living fern, dry, dead lygodium stems accumulate, boosting the wildfire hazard.
Tue, 28 Jul 09
Women At Risk Of Gaining Excessive Weight With Injectable Birth Control Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Vy_nRmgT8pg/090724163028.htm
A new study has identified women who are likely to gain weight while using depot medroxyprogesterone acetate, more commonly known as Depo-Provera or the birth control shot. These findings dispel the myth that all women who use DMPA will gain weight and will help physicians to counsel patients appropriately.
Tue, 28 Jul 09
Next-generation Sound Systems To Minimize Background Noise
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tTkyxzrN50c/090724213354.htm
The whole listening experience in cars, cinemas, theaters, and even during video conferences, is likely to improve radically thanks to a new set of tools for application development.
Tue, 28 Jul 09
Pandemic Could Overwhelm Critical Care Beds In England, Especially Children’s Units
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GUXvlUJ72GY/090724091141.htm
Experts in intensive care and anaesthesia have predicted that the current swine flu pandemic could overwhelm critical care beds and ventilators in England, with hospitals on the South East Coast, and in the South West, East of England and East Midlands being worst hit. The research suggests that demand for critical care beds could outstrip supply by up to 130 per cent, with up to 20 per cent excess demand for ventilators in some regions.
Tue, 28 Jul 09
Mutation Causing One Type Of Male Infertility Found: Contraceptive Pill For Men Next?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/X3UGjO1uDzE/090725204014.htm
A genetic mutation that lies behind one type of male infertility has been discovered. The discover may provide a new approach to help some couples that have been unsuccessful in IVF treatments, and could potentially lead to the development of a male contraceptive pill.
Tue, 28 Jul 09
Stem Cells Not The Only Way To Fix A Broken Heart
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OCf1SXhjeQ0/090723141817.htm
Researchers appear to have a new way to fix a broken heart. They have devised a method to coax heart muscle cells into reentering the cell cycle, allowing the differentiated adult cells to divide and regenerate healthy heart tissue after a heart attack, according to studies in mice and rats.
Tue, 28 Jul 09
For Horned Lizard, Horns Alone Do Not Make The Species
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HZSmcEmfvwA/090721163115.htm
Counting the horns of California's horned lizard, or coast horned lizard, is one way to try to distinguish separate species, but a new study shows that to be unreliable. Biologists considered genetic, morphological and ecological data to separate the species into three, ranging from Baja to Northern California.
Tue, 28 Jul 09
Daily Potassium Citrate Wards Off Kidney Stones In Seizure Patients On High-fat Diet
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nkAJd53c8B4/090721163120.htm
Children on the high-fat ketogenic diet to control epileptic seizures can prevent the excruciatingly painful kidney stones that the diet can sometimes cause if they take a daily supplement of potassium citrate the day they start the diet, according to new research.
Tue, 28 Jul 09
Airborne Expedition Chases Arctic Sea Ice Questions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ASZPSYIqZD8/090717150242.htm
A small NASA aircraft has just completed its first successful science flight as part of an expedition to study the receding Arctic sea ice and improve understanding of its life cycle and the long-term stability of the Arctic ice cover.
Tue, 28 Jul 09
Human Movement Plays Critical Role In Understanding Disease Transmission
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EGADBQKGU90/090720202546.htm
To control mosquito-borne diseases like dengue, researchers need to look at the behavior of people, not just the insect that transmits the disease, according to new research. The study exhibits work by an international, multidisciplinary team of vector biologists, sociologists and virologists studying dengue in Iquitos, Peru.
Tue, 28 Jul 09
Soldiers Turn A March Into A Charge
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bqubhMTo2j8/090727081112.htm
Engineers are developing a way to capture the kinetic energy produced when soldiers march and use it to power their equipment.
Tue, 28 Jul 09
Potentially Safer General Anesthetic Developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gPZZDeRxtrA/090723081520.htm
Physicians have described preclinical studies of a new general anesthetic -- a chemically altered version of an exiting drug -- that does not cause the sudden drop in blood pressure seen with most anesthetics or prolonged suppression of adrenal gland activity, a problem with the parent drug.
Tue, 28 Jul 09
Human-dog Communication: Breed As Important As Species
http://feeds.sciencedaily.com/~r/sciencedaily/~3/f7q1xtMTzFI/090723194319.htm
Dog breeds selected to work in visual contact with humans, such as sheep dogs and gun dogs, are better able to comprehend a pointing gesture than those breeds that usually work without direct supervision.
Tue, 28 Jul 09
Disease Markers That Will Aid Arthritis Research
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HZu2D0YvGqU/090723194317.htm
A combination of biochemical and MRI markers will allow improved measurement of osteoarthritis progression. The biomarkers will be useful for the design and interpretation of trials of new disease modifying drugs.
Tue, 28 Jul 09
Fighting Hepatitis E Atom By Atom
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8evZxxU4ygM/090721163118.htm
Researchers have for the first time described the atomic structure of the protein shell that carries the genetic code of hepatitis E (HEV). Their findings could mean that new ways to stop the virus may come in the not-too-distant future.
Tue, 28 Jul 09
Early Rice Harvests Ease Annual Famine In Bangladesh
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Nf2GcImCPOs/090722093808.htm
Bangladeshi farmers are benefiting from research that allows farmers to harvest rice earlier, giving them more time to grow a second crop to provide desperately needed food and ease hunger during monga -- the hunger months.
Tue, 28 Jul 09
Discovery Of Genetic Toggle Switch Inches Closer To Possible Diabetes Cure
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uPHFika5nE4/090720134230.htm
Scientists have identified a master regulator gene for early embryonic development of the pancreas and other organs, putting researchers closer to coaxing stem cells into pancreatic cells as a possible cure for type 1 diabetes. Besides having important implications in diabetes research, the study offers new insights into certain congenital birth defects.
Tue, 28 Jul 09
‘Nano Violin String’: Effect of Single Electron Vibrating Carbon Nanotube
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PSN4qJfgsPI/090724091146.htm
Researchers have succeeded in measuring the influence of a single electron on a vibrating carbon nanotube. This research can be important for work such as the development of ultra-small measuring instruments.
Tue, 28 Jul 09
Lung Volume Reduction Surgery Shown To Prolong And Improve Life For Some Emphysema Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kb3TafVlk4g/090723175502.htm
Lung volume reduction surgery can have a significantly beneficial effect in patients with severe emphysema, according to the first ever study to randomize emphysema patients to receive either LVRS or non-surgical medical care.
Tue, 28 Jul 09
Global Ocean Surface Temperature Warmest On Record For June
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BBt0Xmj8chQ/090725120303.htm
The world's ocean surface temperature was the warmest on record for June, breaking the previous high mark set in 2005, according to a preliminary analysis by NOAA. Additionally, the combined average global land and ocean surface temperature for June was second-warmest on record. The global records began in 1880.
Tue, 28 Jul 09
Genetic Basis For Schizophrenia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NBy1hadGw9w/090721113305.htm
Two recent publications focus on the role of Disc1 in development, particularly the migration of cells to their proper location in the brain and subsequent differentiation into their intended fate.
Mon, 27 Jul 09
Vision: New Type Of Cell That Can Sense Light Found In Fish
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dfsMg198k2g/090726150831.htm
Nearly all species have some ability to detect light. At least three types of cells in the retina allow us to see images or distinguish between night and day. Now, researchers have discovered in fish yet another type of cell that can sense light and contribute to vision.
Mon, 27 Jul 09
Stripping Leukemia-initiating Cells Of Their 'Invisibility Cloak'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mKZcmKP3le8/090723142036.htm
Two new studies reveal a way to increase the body's appetite for gobbling up the cancer stem cells responsible for acute myeloid leukemia (AML), a form of cancer with a particularly poor survival rate. The key is targeting a protein on the surface of those cells that sends a "don't eat me" signal to the macrophage immune cells that serve as a first line of defense, according to new reports.
Mon, 27 Jul 09
Drug Rescues Memory Lost To Alzheimer's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2_8WUaqI6OI/090714125000.htm
A drug similar to one used in clinical trials for treatment of rheumatoid arthritis and psoriasis has been found to rescue memory in mice exhibiting Alzheimer's symptoms.
Mon, 27 Jul 09
Knee Injuries May Start With Strain On The Brain, Not The Muscles
http://feeds.sciencedaily.com/~r/sciencedaily/~3/q9aqYy2WIpk/090724102915.htm
New research shows that training your brain may be just as effective as training your muscles in preventing anterior cruciate ligament knee injuries, and suggests a shift from performance-based to prevention-based athletic training programs.
Mon, 27 Jul 09
Dye-sensitized Solar Cells To Power Air Force Unmanned Aerial Vehicles
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fTVNdsw3xSQ/090714124954.htm
Dye-sensitized solar cells are expected to power Air Force unmanned aerial vehicles in the future because they are an optimum energy harvesting source that may lead to longer flight times without refueling.
Mon, 27 Jul 09
If You're Happy, Then We Know It: New Research Measures Mood
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Lhr7CsgZipA/090724144522.htm
Scientist have created a mechanism to measure happiness of millions of bloggers. Their "hedonometer" gathers sentences beginning "I feel..." Then, applying standardized "psychological valence" of words, each sentence receives a happiness score. Their approach can let them measure happiness levels of, e.g., people over 65 in Oregon on Wednesdays. The happiest day in 4 years: Election Day 2008. Michael Jackson's death: one of the unhappiest. Their results show young teenagers are unhappiest.
Mon, 27 Jul 09
Hydrocarbons In The Deep Earth?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RsFsef9HQag/090726150843.htm
Oil and gas started out as living organisms that died, were compressed, and were heated under layers of sediments in the Earth's crust. Scientists have debated for years whether some of these hydrocarbons could have been created deeper in the mantle and formed without organic matter. Now for the first time, scientists have found that ethane and heavier hydrocarbons can be synthesized under conditions of the upper mantle.
Mon, 27 Jul 09
Active Genes Discovered In The Developing Mammal Brain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-uOqsWgWqSU/090713201616.htm
New information about the genes involved in a mammal's early brain development, including those that contribute to neurological disorders such as autism and mental retardation, has been discovered. The study is the first to use high-throughput sequencing to uncover active genes in developing brains, and it may be the best evidence yet for the activity in the brain of a large number of genes.
Mon, 27 Jul 09
Smaller Plants Punch Above Their Weight In The Forest
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LJGPJlxpxms/090714124903.htm
Biologists show that in the plant world, bigger isn't necessarily better. "Until now most of the thinking has suggested that to be a good competitor in the forest, you have to be a big plant," according to one of the researchers. "But our research shows it's virtually the other way around."
Mon, 27 Jul 09
New Molecular Pathway For Targeting Cancer, Disease Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/q1uoa3EGZTg/090720134551.htm
A study has identified a way to turn off a key signaling pathway involved in physiological processes that can also stimulate the development of cancer and other diseases. The findings may lead to new treatments and targeted drugs using this approach.
Mon, 27 Jul 09
New Optical Forces Revealed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xHD_1ibFN_Y/090714154729.htm
Scientists have demonstrated repulsive and attractive nanophotonic forces, depending on the spatial distribution of the light used. These fundamental research results might have major consequences for telecommunication and optical signal processing.
Mon, 27 Jul 09
Short Stressful Events May Improve Working Memory
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-a04_mxfDUk/090723113657.htm
Experiencing chronic stress day after day can produce wear and tear on the body physically and mentally, and can have a detrimental effect on learning and emotion. However, acute stress -- a short stressful incident -- may enhance learning and memory.
Mon, 27 Jul 09
Songbirds’ Elaborate Cries For Food Show First Signs Of Vocal Learning
http://feeds.sciencedaily.com/~r/sciencedaily/~3/E9bLaK-CF1c/090724120712.htm
Only a handful of social animals -- songbirds, some marine mammals, some bats and humans -- learn to actively style their vocal communications. Babies, for instance, start by babbling, their first chance to experiment with sounds. Now, new research in songbirds shows that vocal experimentation may begin with their earliest vocalizations -- food begging calls -- and perhaps for a more devious reason than previously believed. The findings could change the way we think about the evolution of vocal learning.
Mon, 27 Jul 09
Newly Discovered Gene Fusion May Lead To Improved Prostate Cancer Diagnosis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fjyjVfuocoU/090723113702.htm
Researchers have discovered a new gene fusion that is highly expressed in a subset of prostate cancers.
Mon, 27 Jul 09
Coral Bleaching Likely In Caribbean
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oPkF1nhScuo/090725120003.htm
Scientists say conditions are favorable for significant coral bleaching and infectious coral disease outbreaks in the Caribbean, especially in the Lesser Antilles. Similar conditions may develop in Gulf of Mexico and Central Pacific. The forecast is based on the July NOAA Coral Reef Watch outlook, which expects continued high water temperatures through October 2009.
Mon, 27 Jul 09
Leading Pathogen In Newborns Can Suppress Immune Cell Function
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SuL1d7MSGEo/090713100914.htm
Group B Streptococcus (GBS), a bacterial pathogen that causes sepsis and meningitis in newborn infants, is able to shut down immune cell function in order to promote its own survival, according to new research.
Mon, 27 Jul 09
Concrete Columns With Internal Bars Made Of Glass Fibers Can Make A Building Sturdier
http://feeds.sciencedaily.com/~r/sciencedaily/~3/brK_Ad8BWAs/090714165056.htm
A new study demonstrates that the behavior of fiber reinforced polymer reinforced concrete columns is very similar to that of the conventional steel counterpart. Thus, for structures that function in harsh environments like coastal regions, or for structures that support sensitive equipment, such as magnetic resonance imaging units; the use of FRP is emerging as a valuable option.
Mon, 27 Jul 09
Social Scientist Suggests New Research Framework To Study Complex Systems
http://feeds.sciencedaily.com/~r/sciencedaily/~3/77h_-x_kEgM/090723141808.htm
The often-used one-size-fits-all approach to policies aimed at achieving sustainable social-ecological systems needs to be updated with a diagnostic tool to help scholars from multiple disciplines better frame the question and think through the variables, asserts a social scientist and political economist.
Mon, 27 Jul 09
Jewel Beetle Shimmer Could Offer Blueprint For Materials That Reflect Light
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yFjwEErxfoY/090723175436.htm
"Jewel beetles" are widely known for their glossy external skeletons that appear to change colors as the angle of view changes. Now they may be known for something else -- providing a blueprint for materials that reflect light rather than absorbing it to produce colors.
Mon, 27 Jul 09
Human Cells Secrete Cancer-killing Protein
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NSPzEkYbc0U/090723150826.htm
The tumor-suppressor protein Par-4 is secreted by human and rodent cells and activates a novel extrinsic pathway involving cell surface GRP78 receptor for induction of apoptosis, researchers have found.
Mon, 27 Jul 09
Multitasking Ability Can Be Improved Through Training
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MtkLnLf_0Mg/090716113401.htm
Training increases brain processing speed and improves our ability to multitask, new research indicates.
Mon, 27 Jul 09
One Gene That Contributes To Breast Cancer's Aggressive Behavior Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wm2awJ_HFKw/090720190808.htm
Scientists have identified a gene, known as RCP (or RAB11FIP1), that is frequently amplified and over-expressed in breast cancer, and functionally contributes to aggressive breast cancer behavior.
Mon, 27 Jul 09
Scientists Identify Weevil As Biocontrol For Invasive Garlic Mustard
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2IEltmrvNBQ/090725115152.htm
A promising biocontrol agent for garlic mustard, one of the most problematic invaders of temperate forests in North America, has been identified.
Mon, 27 Jul 09
More Evidence In Favor Of Healthy Lifestyle In Prevention Of Cardiovascular Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qtzLV_evbY8/090721163113.htm
As the ESC Congress 2009 draws ever closer, the evidence in favor of a healthy lifestyle for the prevention of cardiovascular disease grows ever stronger.
Mon, 27 Jul 09
Parasitic Worms Make Sex Worthwhile
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WAZxJTa6niQ/090723142041.htm
The coevolutionary struggle between a New Zealand snail and its worm parasite makes sex advantageous for the snail, whose females favor asexual reproduction in the absence of parasites, say biologists.
Mon, 27 Jul 09
Protein That Promotes Cancer Cell Growth Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/D2042HbTrGM/090724124136.htm
Scientists have found that the Caspase-8 protein, long known to play a major role in promoting programmed cell death (apoptosis), helps relay signals that can cause cancer cells to proliferate, migrate and invade surrounding tissues.
Mon, 27 Jul 09
New Science Of Learning Offers Preview Of Tomorrow's Classroom
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yxufbGDYRNc/090716141129.htm
Of all the qualities that distinguish humans from other species, how we learn is one of the most significant. Researchers who are at the forefront of neuroscience, psychology, education, and machine learning have synthesized a new science of learning that is already reshaping how we think about learning and creating new opportunities to reimagine the classroom for the 21st century.
Mon, 27 Jul 09
Laser Microsurgery For Tongue Cancer Is As Effective As Invasive Open Surgery, According To New Study
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FzaBKib_4sw/090720163725.htm
Transoral (through-the-mouth) laser surgery to remove cancer at the base of the tongue is as effective as more invasive open surgery, and may improve quality of life according to a new study.
Mon, 27 Jul 09
Researchers Look To Imprinted Genes For Clues To Fetal Growth Restriction In Cloned Swine
http://feeds.sciencedaily.com/~r/sciencedaily/~3/G0tf9ykMLIA/090720163721.htm
Researchers have found that intrauterine growth restriction (IUGR), which results in low birth weight and long-term deleterious health effects in cloned swine, is linked to a type of gene -- known as an imprinted gene -- found only in placental mammals.
Mon, 27 Jul 09
Teen Drinking Linked To Behavioral Problems, Norwegian Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kiuGXikHXOg/090716093125.htm
Teens who drink heavily are more likely than their peers to have behavioral and attention problems and suffer from anxiety and depression, a Norwegian study has found.
Sun, 26 Jul 09
Inbred Bumblebees Less Successful Due To 'Inefficient' Males
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YEyhtrVVRvE/090701190414.htm
Declining bumblebee populations are at greater risk of inbreeding, which can trigger a downward spiral of further decline. Researchers have provided the first proof that inbreeding reduces colony fitness under natural conditions by increasing the production of reproductively inefficient 'diploid' males.
Sun, 26 Jul 09
Airway Cells Use 'Tasting' Mechanism To Detect And Clear Harmful Substances
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6S4pRAcoHvk/090724144530.htm
The same mechanism that helps you detect bad-tasting and potentially poisonous foods may also play a role in protecting your airway from harmful substances, according to a new study. The findings could help explain why injured lungs are susceptible to further damage.
Sun, 26 Jul 09
Technology Improves Salmon Passage At Hydropower Dams
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xE_Kst6XJ9w/090724102919.htm
Acoustic tags and numerical river models are two technologies that are helping improve salmon passage at the Columbia Basin's hydroelectric dams. An average of 76 percent of juvenile Chinook salmon that pass through the lower 100 miles of the Snake River and its three hydroelectric dams survived the trek in the spring of 2008, according to a joint study between PNNL and the U.S. Army Corps of Engineers' Portland District.
Sun, 26 Jul 09
Progressive Resistance Strength Training Helps Older People In Daily Life
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7gvVZV3syWY/090707201118.htm
Progressive resistance strength training not only helps older adults become stronger but also makes their everyday life easier, a new review suggests.
Sun, 26 Jul 09
Ancient Fossils Shed Light On Anatomical Changes Accompanying Evolution Of First Land Vertebrates
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NKeWQj2HE1Q/090706171540.htm
Long before mammals, birds, and even dinosaurs roamed the Earth, the first four-legged creatures made their first steps onto land. These early land vertebrates varied considerably in size and shape.
Sun, 26 Jul 09
Early Detection And Quick Response Are Key To Defense Against Anthrax Attack
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DYObQBpGj6E/090724144527.htm
A large attack on a major metropolitan area with airborne anthrax could affect more than a million people, necessitating their treatment with powerful antibiotics. A new study finds that in order for a response to be effective, quick detection and treatment are essential, and any delay beyond three days would overwhelm hospitals with critically ill people.
Sun, 26 Jul 09
Magnetic Field On Bright Star Vega
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7eeqV6IsO6M/090623111947.htm
The first detection of a magnetic field on the bright star Vega has been made. Astronomers clearly observe the magnetically-induced effect in the spectrum of Vega, thereby showing that the star possesses a magnetic field, something unknown so far.
Sun, 26 Jul 09
Possible Association Between Agent Orange Exposure And Increased Risk Of Developing Ischemic Heart Disease Or Parkinson's Disease For Vietnam Veterans
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-htGZqpp9zs/090724124138.htm
A new report from the Institute of Medicine finds suggestive but limited evidence that exposure to Agent Orange and other herbicides used during the Vietnam War is associated with an increased chance of developing ischemic heart disease and Parkinson's disease for Vietnam veterans. The report is the latest in a congressionally mandated series by the IOM that every two years reviews the evidence about the health effects of these herbicides and a type of dioxin -- TCDD -- that contaminated some of the defoliants.
Sun, 26 Jul 09
Weight Determines Future Cognitive Development Of Children Born Very Premature, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9EnDTsaSseU/090702080356.htm
Researchers are carrying out an assessment of the physical neuropsychological characteristics of children born before 32 weeks' gestation or whose weight is lower than 1500 grams (3 lbs. 5oz.) -- very premature. The results obtained so far reveal that the decisive variable for the existence of a reversible or irreversible brain damage is the baby's weight at birth, rather than the time of gestation.
Sun, 26 Jul 09
Best Heart Disease And Stroke Treatments For Patients With Diabetes Found With New Tool
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yuK69TfwsKQ/090629112633.htm
Researchers have developed a computer model that medical doctors can use to determine the best time to begin using statin therapy in diabetes patients to help prevent heart disease and stroke.
Sun, 26 Jul 09
Optimistic Future For Agriculture Predicted
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RaFrN6IFvgk/090624152938.htm
Dramatic price fluctuations, increasing demand, the food vs. fuel debate, and other events of the past year may have food producers wondering which way is up. Despite these recent uncertainties, 'up' is precisely the direction one expert believes agriculture is headed for at least the next 10 years.
Sun, 26 Jul 09
One In Six Public Health Workers Unlikely To Respond In Pandemic Flu Emergency
http://feeds.sciencedaily.com/~r/sciencedaily/~3/g0EPvsWM9DA/090724102911.htm
Approximately 1 in 6 public health workers said they would not report to work during a pandemic flu emergency regardless of its severity, according to a new survey. The new study suggests ways for improving the response of the public health workforce.
Sun, 26 Jul 09
Students Embed Stem Cells In Sutures To Enhance Healing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Mzdkhvbj034/090720191145.htm
Biomedical engineering students have demonstrated a practical way to embed a patient's adult stem cells in the surgical thread used to repair serious orthopedic injuries such as ruptured tendons. The goal is to enhance healing and reduce the likelihood of re-injury.
Sun, 26 Jul 09
New System May Allow Xenon Use To Protect Brain In Critically Ill Newborns
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LEGfRYFYdzo/090724214301.htm
Breathing xenon gas can help protect the infant brain from damage caused by oxygen deprivation, but the xenon's high cost and scarcity has precluded its widespread use. A newly developed "closed circuit system" may make xenon feasible, safe, and cost efficient for use in protecting the brains of critically ill infants, according to a new study.
Sun, 26 Jul 09
'Ballooning' Spiders Grounded By Infection
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1zXX94y7Aas/090618200929.htm
Money spiders infected with Rickettsia bacteria are less likely to 'balloon' -- that is, to use their silk as sails to catch gusts of wind and travel long distances. Researchers suggest that it may be in the bacteria's interests to ground the spiders and that this reduction in dispersal could reduce gene flow and impact on reproductive isolation within the meta-population.
Sun, 26 Jul 09
Breast Cancer Prognosis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YLsxfGNmBnA/090624210847.htm
Scientists have identified a stromal marker for breast cancer progression.
Sun, 26 Jul 09
Oceanography: Low Summer Iron Availability Limits Biological Production In The High-latitude North Atlantic
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EQWyBExvpKs/090707111711.htm
Scientists have demonstrated an unexpected role of iron in regulating biological production in the high-latitude North Atlantic. Their findings have important implications for our understanding of ocean-climate interactions.
Sun, 26 Jul 09
Oprah, Luke Skywalker And Maradona: New Study Investigates How Our Brains Respond To Them
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kgyIBq6ikMk/090723141810.htm
New research reveals how visual and auditory information converges into the firing of single neurons.
Sat, 25 Jul 09
Ants More Rational Than Humans?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Lm_C5IxJvCI/090724144524.htm
Researchers now show that ants can accomplish a task more rationally than our -- multimodal, egg-headed, tool-using, bipedal, opposing-thumbed -- selves. This is not the case of humans being "stupider" than ants.
Sat, 25 Jul 09
Injection Reverses Heart-attack Damage
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aHWTkB_5MFM/090723142039.htm
Injured heart tissue normally can't regrow, but researchers now offer a groundwork for regenerating heart tissue after a heart attack, in patients with heart failure, or in children with congenital heart defects. They show that a growth factor involved in the development of the heart and nervous system can spur heart-muscle growth and recovery of cardiac function when injected systemically into animals after a heart attack.
Sat, 25 Jul 09
New Method To Cleaner And More Efficient Carbon Dioxide Capture
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AZGzRTcL0VQ/090722142843.htm
Researchers have developed a screening method that would use ionic liquids -- a special type of molten salt that becomes liquid under the boiling point of water (100 degrees Celsius) -- to separate carbon dioxide from its source, making it a cleaner, more viable and stable method than what is currently available.
Sat, 25 Jul 09
Improving Impaired Attention May Help Patients Recover From Stroke
http://feeds.sciencedaily.com/~r/sciencedaily/~3/V0NZjTg60P0/090723175430.htm
An attention training program may be a viable and effective way to improve attention span in stroke survivors. Survivors who received attention training had higher improved rates of attention compared to patients receiving standard rehabilitation.
Sat, 25 Jul 09
Computer Forensics Links Internet Postcards To Virus
http://feeds.sciencedaily.com/~r/sciencedaily/~3/luI2RbcvHr4/090724212619.htm
Fake Internet postcards circulating through e-mail inboxes worldwide are carrying links to the virus known as Zeus Bot, said a computer forensics expert. Zeus Bot has been named America's most pervasive computer Botnet virus by Network World magazine, reportedly infecting 3.6 million US computers.
Sat, 25 Jul 09
Caffeine-Drinking Teens Don’t Get Enough Sleep
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FKp-4oVCOCY/090724214602.htm
Fueled by caffeine teens are up late at night, and they aren't just focusing on homework. Web surfing, text messaging and gaming are keeping them up for hours into the night, according to a recent study.
Sat, 25 Jul 09
Hubble Captures Rare Jupiter Collision
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NDR9W07ifgw/090724163030.htm
The checkout and calibration of the NASA/ESA Hubble Space Telescope has been interrupted to aim the recently refurbished observatory at a new expanding spot on the giant planet Jupiter. The spot, caused by the impact of a comet or an asteroid, is changing from day to day in the planet's cloud tops.
Sat, 25 Jul 09
Some Blood Pressure Drugs May Help Protect Against Dementia, Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HfT8lmF-hKI/090723081516.htm
A particular class of medication used to treat high blood pressure could protect older adults against memory decline and other impairments in cognitive function, according to a new study.
Sat, 25 Jul 09
Cell Membranes Applied To Manufactured Surfaces Could Lead To New Class Of Self-assembling Materials
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IF0DIoxaoqo/090722123749.htm
Applying biological molecules from cell membranes to the surfaces of artificial materials is opening peepholes on the very basics of cell-to-cell interaction. Two new articles suggest that putting lipids and other cell membrane components on manufactured surfaces could lead to new classes of self-assembling materials for use in precision optics, nanotechnology, electronics and pharmaceuticals.
Sat, 25 Jul 09
Immune System's Natural Killer Cells Linked To Infant Liver Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YmtAfVFghkA/090722110852.htm
Scientists have linked an overactive response by one of the immune system's key weapons against infection -- natural killer cells -- to biliary atresia in infants, a disease where blocked bile ducts can cause severe liver damage and death. The study shows blocking a gene that helps NK cells attack bile duct tissues may be a way to treat a common cause of liver disease in children.
Sat, 25 Jul 09
Beyond Flash: Memories Are Made Of This
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RY7KEDyMXUw/090722204748.htm
The race is on for a successor to the popular ‘flash’ memory used in portable devices. Researchers think they have found a candidate in novel materials combined with a simple, easily fabricated ‘crossbar’ architecture.
Sat, 25 Jul 09
Risky Driving Puts Young Drivers At High Danger Of Crashing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8ui4QQ_I2YI/090723113704.htm
Australia's largest study of young drivers has shown that risky driving habits are putting young drivers at a significantly increased risk of crashing, irrespective of their perceptions about road safety. The study surveyed 20,000 young drivers and examined their crashes reported to police. Young drivers involved in the study who said they undertook risky driving were 50 percent more likely to crash.
Sat, 25 Jul 09
Colic In Babies May Be Caused By Gut Bacteria
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8EnlxXSJGVA/090724144520.htm
Researchers say one organism discovered during their study may unlock the key to what causes colic, inconsolable crying in an otherwise healthy baby. The study pointed to an organism called Klebsiella, a normally occurring bacterium that can be found in the mouth, skin and intestines. In the study of 36 babies, half of which had colic, researchers found the bacterium and gut inflammation in the intestines of the babies with colic.
Sat, 25 Jul 09
Diet High In Omega-3 Fatty Acids May Help Prevent A Leading Cause Of Blindness Among Elderly
http://feeds.sciencedaily.com/~r/sciencedaily/~3/slLiyuNBq8Y/090723081518.htm
Current research suggests that a diet high in omega-3 fatty acids may help prevent one of the leading causes of legal blindness among the elderly. Age-related macular degeneration (AMD), loss of vision in the center of the visual field (macula) due to retinal damage, is one of the leading causes of legal blindness among the elderly. Approximately 10% of people from 66 to 74 years of age will develop some level of macular degeneration, making it difficult for them to read or even recognize faces.
Sat, 25 Jul 09
Indications For Volcanic Eruptions In The Younger Geological History Found In Labrador Sea
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nk2yJRXuYu8/090722100505.htm
Scientists have researched the geology of the seabed in the Labrador Sea on board of RV Maria S. Merian. They have studied the so-called Eirik Drift at the southern tip of Greenland, a structure of several hundred kilometers length formed like a ridge. They discovered a submarine mountain (seamount) at the southwestern fringe of their area of investigation that indicates volcanic eruptions during the past few million years.
Sat, 25 Jul 09
Clinical Trials To Test 2009 H1N1 Influenza Vaccine Candidates Set
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EYze72TGz1Q/090722142836.htm
Scientists in a network of medical research institutions across the United States are set to begin a series of clinical trials to gather critical data about influenza vaccines, including two candidate H1N1 flu vaccines.
Sat, 25 Jul 09
New Software To Understand Viruses
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qNMt2rSDWwM/090723081754.htm
Computer scientists and biologists have developed software which provides a better understanding of how viruses evolve.
Sat, 25 Jul 09
The Good Life: Where Psychology Stands On Living Well
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Rfa7WWObCbM/090722110905.htm
Unfortunately for us, there is no formula for fulfillment or guide to life satisfaction; however, humans have turned to philosophy, religion and science time and again for answers to our existential questions. We may have come a long way since Confucius and Plato, and science continues to piece together some of the answers, but what have we learned so far?
Sat, 25 Jul 09
'Bacterial Computers': Genetically Engineered Bacteria Have Potential To Solve Complicated Mathematical Problems
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3h2Ukv1WR68/090723194321.htm
Researchers have created "bacterial computers" with the potential to solve complicated mathematics problems. Scientists demonstrate that computing in living cells is feasible, opening the door to a number of applications. The second-generation bacterial computers illustrate the feasibility of extending the approach to other computationally challenging math problems.
Sat, 25 Jul 09
New Drug May Reduce Heart Attack Damage
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GnmOjgAH-8A/090724102921.htm
A novel drug that targets a master disease-causing gene can dramatically reduce heart muscle damage after a heart attack and may lead to significantly improved patient outcomes, researchers have shown.
Sat, 25 Jul 09
NASA Celebrates Chandra X-Ray Observatory's 10th Anniversary
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DujujwVW9l4/090723113519.htm
Ten years ago, on July 23, 1999, NASA's Chandra X-ray Observatory was launched aboard the space shuttle Columbia and deployed into orbit. Chandra has doubled its original five-year mission, ushering in an unprecedented decade of discovery for the high-energy universe.
Sat, 25 Jul 09
Risk Of Developing Deep Vein Thrombosis During A Flight Is Often Overestimated, According to Some Experts
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ja2MBksNC-s/090723113523.htm
The risk of developing deep vein thrombosis during a long flight is often overestimated. According to some researchers, this condition is very unlikely in healthy travelers. When people wear a cast or splint after a sports accident, on the other hand, many are not aware that they have an increased risk of deep vein thrombosis in their leg and pelvic area.
Sat, 25 Jul 09
DNA 'Sloppier Copier' Surprisingly Efficient: Three Major Puzzles About Famous Enzyme Solved
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MNWwoJ405rw/090715131447.htm
The "sloppier copier" is also the best sixth man in the DNA repair game, a new article shows.
Sat, 25 Jul 09
Footwear Alters Normal Form And Function Of The Foot
http://feeds.sciencedaily.com/~r/sciencedaily/~3/y4OAZ6JIE94/090724091339.htm
A habitually shod lifestyle has consequences for the biologically normal anatomy and function of the foot.
Sat, 25 Jul 09
Silicon With Afterburners: New Process Could Be Boon To Electronics Manufacturer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/f7ZTF4R93M4/090723113700.htm
Scientists have found a method of attaching molecules to semiconducting silicon that may help manufacturers reach beyond the current limits of Moore's Law as they make microprocessors both smaller and more powerful.
Sat, 25 Jul 09
Central Nervous System Repair? Neuronal Survival And Axonal Regrowth Obtained In Vitro
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AHvf2Lm5kFk/090724113546.htm
While repair of the central nervous system has long been considered impossible, researchers have just developed a strategy that could promote neuronal regeneration after injury.
Sat, 25 Jul 09
Animal TB 'Tracker' Aims To Speed Drug And Vaccine Studies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hn1Zz-WsAbE/090722191217.htm
Researchers have developed a novel way to monitor in real time the behavior of the TB bacterium in mouse lungs noninvasively pinpointing the exact location of Mycobacterium tuberculosis. The new monitoring system is expected to speed up what is currently a slow and cumbersome process to test the safety and efficacy of various TB drug regimens and vaccines in animals. Plans are already under way for developing a similar system to monitor TB disease in humans.
Sat, 25 Jul 09
Sticky Protein Helps Reinforce Fragile Muscle Membranes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7IlAgA4r58I/090723142113.htm
A new study shows why muscle membranes don't rupture when healthy people exercise. The findings shed light on a mechanism that appears to protect cells from mechanical stress. The study also helps explain why muscle damage is so severe when this mechanism is disrupted, which occurs in certain muscular dystrophies.
Sat, 25 Jul 09
Process For 'Surgical' Genetic Changes In Plants Developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4Onh7XNv85o/090720134514.htm
Scientists have developed a process that will make genetic changes in plant genes much more efficient, practical and safe.
Sat, 25 Jul 09
Brewery To Be Built At University
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zS0UGK3-5Js/090724091341.htm
A fully functioning micro-brewery is to be built at The University of Nottingham. The facility will enhance its research in brewing science.
Fri, 24 Jul 09
Brain Develops Motor Memory For Prosthetics
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EsVN83P5k54/090720202549.htm
A new study shows that the brain can develop a stable, neural map of a how to control a prosthetic device, providing hope that physically disabled people can one day master control of artificial limbs with greater ease.
Fri, 24 Jul 09
Reprogrammed Mouse Fibroblasts Can Make A Whole Mouse
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HoFBzqyTQvE/090723142046.htm
Scientists report an important advance in the characterization of reprogrammed induced pluripotent stem cells, or iPSCs. Researchers used established methods to reprogram mouse cells to isolate five new iPSC lines, and then found that, using one of these lines, they were able to make by tetraploid complementation embryos that survived until birth, and one embryo that also survived to adulthood.
Fri, 24 Jul 09
'Long-haired' Water Molds Are The Most Virulent
http://feeds.sciencedaily.com/~r/sciencedaily/~3/V493ssi-mec/090721090136.htm
The water mould Saprolegnia can cause skin disease in salmon during its freshwater phase. The mould attacks both fish and eggs and has at times caused great economic loss for the fish farming industry, both in Norway and in other salmon-producing countries. Saprolegnia infection may be seen with the naked eye as white patches on the skin or as "cotton-like" patches on eggs.
Fri, 24 Jul 09
Even Healthy Lungs Labor At Acceptable Ozone Levels
http://feeds.sciencedaily.com/~r/sciencedaily/~3/y75V1LaRioA/090723175500.htm
Ozone exposure, even at levels deemed safe by current clean air standards, can have a significant and negative effect on lung function, according to researchers.
Fri, 24 Jul 09
New Generation Of Solar Cells Promises Efficiency
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_pcr-8Oh6CE/090723201446.htm
Scientists have produced thin film solar cells made from compound semiconductors which are already reaching a 12 percent efficiency. Thin film solar cells are considered the next generation of solar cells and are expected to be considerably cheaper because they need much less material and energy in their production than today’s photovoltaic modules.
Fri, 24 Jul 09
Technology On Way To Forecasting Humanity's Needs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/moiXCbVK2_Q/090723142048.htm
Much as meteorologists predict the path and intensity of hurricanes, some researchers believe we will one day predict with unprecedented foresight, specificity and scale such things as the economic and social effects of billions of new Internet users in China and India, or the exact location and number of airline flights to cancel around the world in order to halt the spread of a pandemic.
Fri, 24 Jul 09
Physicists Create First Nanoscale Mass Spectrometer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Z5mKdvFyqM4/090722142841.htm
Using devices millionths of a meter in size, physicists have developed a technique to determine the mass of a single molecule, in real time.
Fri, 24 Jul 09
Copper Can Help In The Battle Against Influenza A H1N1, Says Scientist
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DLWzdDnQg4A/090723201456.htm
A leading microbiologist says his research has found copper is effective in inhibiting the influenza A H1N1 virus.
Fri, 24 Jul 09
DNA Of Ancient Lost Barley Could Help Modern Crops Cope With Water Stress
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1ddfJ5RTOus/090721091822.htm
Researchers have recovered significant DNA information from a lost form of ancient barley that triumphed for over 3,000 years seeing off: five changes in civilization, water shortages and a much more popular form of barley that produces more grains. This discovery offers a real insight into the couture of ancient farming and could assist the development of new varieties of crops to face today's climate change challenges.
Fri, 24 Jul 09
Emphysema Severity Directly Linked To Coal Dust Exposure
http://feeds.sciencedaily.com/~r/sciencedaily/~3/s-pX1XrsL_4/090723175438.htm
Coal dust exposure is directly linked to severity of emphysema in smokers and nonsmokers alike, according to new research.
Fri, 24 Jul 09
Breakthrough In Transgenic Animal Production Enables Development Of New Human Disease Models
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xWzmgEOAH-o/090723141751.htm
Scientists have announced the creation of the first genetically modified mammals developed using zinc finger nuclease technology.
Fri, 24 Jul 09
Embarrassing Illnesses No Bar To Information Sharing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ByY_W67CiQI/090723194315.htm
People with potentially "stigmatizing" medical conditions are just as likely as those with less stigmatizing illnesses to allow their personal information to be used for health research. A new study found that the purpose of the research and the type of information to be collected were more important in determining patients' consent choices. In particular, they were very wary of allowing their personal information to be put to commercial use.
Fri, 24 Jul 09
Strong Evidence That Cloud Changes May Exacerbate Global Warming
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EavnVIyp5ps/090723141812.htm
As the earth warms, it is not known whether clouds will dissipate and let more heat in, or whether cloud cover will increase. In a study in Science, researchers begin to unravel this mystery. Using observational data and models, they have established that low-level clouds appear to dissipate as the ocean warms, indicating that changes in these clouds may increase the warming of the planet.
Fri, 24 Jul 09
Protein Excreted In Urine May Be Help In Diagnosing Kidney Disease Caused By HIV
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_xrWQ9StEng/090723175427.htm
New data are helping researchers understand the extent to which a certain protein -- NGAL -- can play a significant role in marking chronic kidney disease resulting from HIV while at the same time distinguishing nephropathy from more common causes such as diabetes and hypertension.
Fri, 24 Jul 09
Noise Pollution Negatively Affects Woodland Bird Communities
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8WGxwRL3q3k/090723142050.htm
A new study shows the strongest evidence yet that noise pollution negatively influences bird populations, findings with implications for the fate of ecological communities situated amid growing urban clamor.
Fri, 24 Jul 09
Fresh Meats Often Contain Additives Harmful To Kidney Disease Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PpdQ5ToHyxc/090723175421.htm
Uncooked meat products enhanced with food additives may contain high levels of phosphorous and potassium that are not discernable from inspection of food labels, according to a new study. This can make it difficult for people to limit dietary phosphorous and potassium that at high levels are harmful to kidney disease patients.
Fri, 24 Jul 09
Supercomputer Fastest Of Its Type In World
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mUnDfwlJTvA/090723142057.htm
A supercomputer named Novo-G described by its lead designer as likely the most powerful computer of its kind in the world became operational the week of July 21, 2009.
Fri, 24 Jul 09
The Paradox Of Loyalty To Country
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zduO9PrZxK4/090723175432.htm
In the wake of the Iraq invasion, many US citizens who disagreed with the Bush Administration's decision detached themselves from politics. On the other hand, a surprising number of people became more patriotic in spite of their objections. Why would disappointment in one's country inspire increased loyalty? Doesn't it seem more natural to disavow the country as a protest?
Fri, 24 Jul 09
Auroras In Northern And Southern Hemispheres Are Not Identical
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1bts6ZFIQHw/090723081756.htm
Researchers present evidence that the auroras in the Northern and the Southern hemispheres can be totally asymmetric. These findings contradict the commonly made assumption of aurora being mirror images of each other.
Fri, 24 Jul 09
Halting A Pandemic: NIH Mounts Search For A H1N1 Vaccine
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XvzWWF955sY/090723194958.htm
Bracing for an outbreak of 2009 H1N1 (swine-origin) flu that an infectious diseases expert estimates could sicken one in five people this fall, scientists are launching a series of clinical trials this summer to test vaccines to protect against the illness. "It's looking more and more like we're going to have a big flu outbreak this fall as soon as the kids get back to school. Influenza is unpredictable, but I believe this pandemic will hit pre-teens, teens and their parents hard, and as many as 60 million Americans could be sick with the flu," according to one expert.
Fri, 24 Jul 09
Longer Life For Milk Drinkers, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Eo8bUQQ5Va8/090722083720.htm
Drinking milk can lessen the chances of dying from illnesses such as coronary heart disease (CHD) and stroke by up to 15-20% according to new research. In recent times milk has often been portrayed by the media as an unhealthy food.
Fri, 24 Jul 09
Stroke: One Disease, Two Effects
http://feeds.sciencedaily.com/~r/sciencedaily/~3/v_Q84y91voY/090716094148.htm
While both males and females are at risk for stroke, males have a particular sensitivity. Data show that male stroke victims outnumber females by about two to one. Women are likewise at risk for stroke and, as they age, their outcomes are often worse than their male counterpart's.Why does one disease affect males and females differently?
Fri, 24 Jul 09
New Technique Can Fast-track Better Ionic Liquids For Biomass Pre-treatments
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cxpDshPiItw/090710205355.htm
Researchers are using the natural auto-fluorescence of plant cell walls to dynamically track how ionic liquids are able to dissolve lignocellulose into fermentable sugars for the production of advanced biofuels.
Fri, 24 Jul 09
Post-traumatic Stress Disorder Associated With Higher Alzheimer's, Dementia Risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/X-nX_LW1E20/090713085003.htm
Though discoveries about Alzheimer's risk factors are often in the news, adults do not know about the relationship between Alzheimer's risk and heart health, nor that physical activity can be protective, according to new research. An additional study shows higher Alzheimer's risk in veterans with post-traumatic stress disorder.
Fri, 24 Jul 09
Growing New Tissues: Unraveling Flatworm Regeneration
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AQrnyy7fO9k/090721104231.htm
Planarian flatworms are only a few millimeters up to a few centimeters in length, live in freshwater and are the object of intense research, because they possess the ability to regenerate lost tissue with the help of their stem cells and even grow an entirely new worm out of minute amputated body parts. Researchers have identified small RNAs which may play a role in regeneration and stem cell function.
Fri, 24 Jul 09
Gene Mutation Responsible For Hereditary Neuroendocrine Tumor Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hmYGNIVizdw/090723142055.htm
Researchers have identified the gene that is mutated in a hereditary form of a rare neuroendocrine tumor called paraganglioma. The gene, called hSDH5, is required for activation of an enzyme complex that plays a critical role in the chemical reactions that take place within cells to convert biochemical energy into usable energy.
Fri, 24 Jul 09
New Lab Test Offers Better Prediction Of HIV Microbicide Safety
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Xz0_OOys9jg/090710092032.htm
Scientists have devised a laboratory test for predicting whether microbicides against HIV are safe for human use. The researchers have also discovered why several supposedly "safe" microbicides made women more susceptible to HIV infection.
Fri, 24 Jul 09
Removal of Tonsils and Adenoids Associated With Ongoing Benefits for Children With Breathing Problems During Sleep
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OSqBlQsbI7Y/090720163551.htm
Two and a half years after children with sleep-related breathing disorders had surgery to remove their tonsils and adenoids (glands in the back of the throat), they appear to sleep better than they did before the procedure but not as well as they did six months after, according to a new report.
Fri, 24 Jul 09
Fast, Flexible And Strong: Building Better Automated Workplace Assistants
http://feeds.sciencedaily.com/~r/sciencedaily/~3/K3gtTbHUNdg/090717090952.htm
Researchers have built a prototype intelligent work assistant device, that supports smooth interaction between a human operator and an automated assistant, and developed software that helps protect the health and safety of the human operator.
Fri, 24 Jul 09
HIV Infection And Chronic Drinking Have A Synergistic, Damaging Effect On The Brain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2709HKkDCKk/090723175425.htm
At least half of clinic patients with the human immunodeficiency virus report they also drink heavily. Findings show that co-existing HIV infection and chronic alcoholism synergistically damage brain function. Specifically, immediate episodic memory was impaired, while working memory remained intact.
Fri, 24 Jul 09
Nanotubes Weigh A Single Atom
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4RQ2LO-EZXc/090630075614.htm
How can you weigh a single atom? Researchers have built an exquisite new device that can do just that. It may ultimately allow scientists to study the progress of chemical reactions, molecule by molecule.
Fri, 24 Jul 09
Therapy For Parkinson's, Other Diseases Advanced With Miniaturization Of Device
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jWizT_dIykQ/090722165503.htm
By miniaturizing a device that monitors the delivery of healthy cells, researchers are developing a powerful instrument for physicians to use in treating patients with Parkinson's syndrome, brain tumors and other diseases.
Fri, 24 Jul 09
Modest Fisheries Reduction Could Protect Vast Coastal Ecosystems
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-xs_okibTZU/090722093802.htm
A reduction of as little as 5 percent in fisheries catch could result in as much as 30 percent of the British Columbia coastal ecosystems being protected from overfishing, according to a new study.
Fri, 24 Jul 09
Women With Cystic Fibrosis Can Have Safe And Successful Fertility Treatment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tdApnIId6_0/090630075309.htm
Women with cystic fibrosis can have fertility treatment to help them have babies without any long-term adverse effects on either themselves or their children, researchers have found. Women with cystic fibrosis often have thick cervical mucus preventing them from becoming pregnant naturally. However, a pregnancy can be achieved by the use of intrauterine insemination (IUI) or in vitro fertilization (IVF).
Fri, 24 Jul 09
New Biochips Anchor Proteins In Gel
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gsOekOnXGDM/090624093738.htm
Biochips carrying thousands of DNA fragments are widely used for examining genetic material. Experts would also like to have biochips on which proteins are anchored. This requires a gel layer which can now be produced industrially.
Fri, 24 Jul 09
How To Maintain The Integrity And Accessibility Of Research Data
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qRDrX5YdbeA/090722120830.htm
Though digital technologies and high-speed communications have significantly expanded the capabilities of scientists -- allowing them to analyze and share vast amounts of data -- these technologies are also raising difficult questions for researchers, institutions and journals.
Fri, 24 Jul 09
Pigeons As Art Critics? Pigeons, Like Humans, Use Color And Pattern Cues To Evaluate Paintings
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BcZWE2BmY00/090630075622.htm
Pigeons judge the beauty of art as humans do -- by using both color and pattern cues. Pigeons could be art critics yet, according to a new study which shows that like humans, pigeons can be trained to tell the difference between 'good' and 'bad' paintings. Pigeons use both color and pattern cues to judge the paintings' beauty as defined by humans, as well as their texture.
Fri, 24 Jul 09
'Single-Shot' Vaccines May Protect Against H5N1 Influenza Virus
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HrVOhj5KEB8/090721110517.htm
Two newly developed "single-shot" H5N1 influenza vaccines protected ferrets against lethal infection with the H5N1 influenza virus and may allow for mass vaccination in humans in the event of a pandemic outbreak.
Fri, 24 Jul 09
Biodiesel On The Wing: A 'Green' Process For Biodiesel From Feather Meal
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NGdvoQ3bLwo/090722110903.htm
Scientists are reporting development of a new and environmentally friendly process for producing biodiesel fuel from "chicken feather meal," made from the 11 billion pounds of poultry industry waste that accumulate annually in the United States alone.
Fri, 24 Jul 09
Antidepressant Directly Stimulates Brain Growth Factor Receptors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qT08UQNABsc/090625133059.htm
The tricyclic antidepressant amitriptyline can directly bind and stimulate the growth factor receptors TrkA and TrkB in the brain. Other antidepressants do not have the same properties. The finding suggests a distinct mechanism by which some antidepressant and pain relief compounds may function.
Fri, 24 Jul 09
Stuff Of Stink Bombs Investigated For Role In Pregnancy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uC0oKvm9GB0/090720134525.htm
A researcher is probing the role of hydrogen sulfide. Hydrogen sulphide -- partially responsible for the foul odour of stink bombs -- is also a toxic gas and has been used for chemical warfare.
Fri, 24 Jul 09
For Abused Women, Leaving Is A Complex And Confusing Process
http://feeds.sciencedaily.com/~r/sciencedaily/~3/poM_uVvW4AM/090722120828.htm
Nothing could be easier than walking out the door, right? According to a new journal article, an abused woman actually goes through a five-step process of leaving that can be complicated at every stage by boundary ambiguity.
Fri, 24 Jul 09
Ancient Maya Practiced Forest Conservation 3,000 Years Ago
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8iwo_RnafM4/090722150825.htm
Paleoethnobotanists have concluded that not only did the Maya people practice forest management, but when they abandoned their forest conservation practices it was to the detriment of the entire Maya culture.
Fri, 24 Jul 09
Drug-dispensing Contact Lens
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5gq2hHa5m8U/090721111535.htm
Taking eye drops multiple times a day can be difficult to do, and as little as 1 to 7 percent of the dose is actually absorbed by the eye. Now, researchers have developed special contact lenses that can gradually dispense a constant amount of medication to the eye, at adjustable rates.
Fri, 24 Jul 09
Infant Inhalation Of Ultrafine Air Pollution Linked To Adult Lung Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jAHc_BsVPv4/090722123751.htm
Early exposure to environmentally persistent free radicals (present in airborne ultrafine particulate matter) affects long-term lung function, according to new research. These results could be especially important because the US Environmental Protection Agency does not currently regulate ultrafine PM emissions.
Fri, 24 Jul 09
New Method For HIV Testing Holds Promise For Developing World
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RjlsjbDkqWE/090721111533.htm
A new technique that detects the HIV virus early and monitors its development without requiring refrigeration may make AIDS testing more accessible in sub-Saharan Africa.
Fri, 24 Jul 09
Artificial Noise Saves Energy For Computer Network Providers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IIcjE0MltqI/090624093734.htm
Against the background of climate change, how can xDSL systems function more energy-efficiently and cost-effectively? Scientists are providing a solution combining existing methods which network providers could implement immediately.
Fri, 24 Jul 09
How Children Draw Conclusions From The Products They See
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qNO8pcrKfzA/090720190732.htm
A new study examines children's tendencies to draw conclusions about social roles from the products they see.
Thu, 23 Jul 09
Chimpanzees Infected With SIV Do Develop And Die From AIDS, Contrary To Prevailing View
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zQYo5PvNP_0/090722142828.htm
Researchers have shown that African wild chimpanzees infected with simian immunodeficiency virus, an HIV-1-like virus, die prematurely and develop hallmarks of HIV-1 infection and AIDS.
Thu, 23 Jul 09
Promising First-in-class Drug Candidate For Genetic Protein-misfolding Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/k8AheJM30qI/090721172420.htm
A promising new drug candidate -- the first in its class -- has been discovered for patients with a genetic protein-misfolding disease. The new drug tafamidis significantly halts disease progression for patients with a disease called Transthyretin (TTR) amyloid polyneuropathy (ATTR-PN).
Thu, 23 Jul 09
Music Is The Engine Of New Lab-on-a-chip Device
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7WxRix5OGGk/090722120835.htm
Music, rather than electromechanical valves, can drive experimental samples through a lab-on-a-chip in a new system. This development could significantly simplify the process of conducting experiments in microfluidic devices.
Thu, 23 Jul 09
Bad Mitochondria May Actually Be Good For You
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PsTi-jf9NQA/090722123753.htm
Mice with a defective mitochondrial protein called MCLK1 produce elevated amounts of reactive oxygen when young; that should spell disaster, yet according to a new study these mice actually age at a slower rate and live longer than normal mice.
Thu, 23 Jul 09
Experiments Show 'Artificial Gravity' Can Prevent Muscle Loss In Space
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LL904aP42-w/090722165459.htm
Researchers have conducted the first human experiments using a device intended to counteract the muscle-wasting effect of long periods in weightlessness -- a NASA centrifuge that spins a test subject with feet outward to create a force two and a half times that of gravity. Working with volunteers kept in bed for three weeks to simulate zero-gravity conditions, they found that just one hour a day on the centrifuge was sufficient to restore muscle synthesis.
Thu, 23 Jul 09
Stop And Smell The Flowers -- The Scent Really Can Soothe Stress
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7An27CzUtlE/090722110901.htm
Feeling stressed? Then try savoring the scent of lemon, mango, lavender or other fragrant plants. Scientists in Japan are reporting the first scientific evidence that inhaling certain fragrances alter gene activity and blood chemistry in ways that can reduce stress levels.
Thu, 23 Jul 09
Predator-Prey Interactions Are Key 'Conductors' Of Nature's Synchronicity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kbVs3h56hE4/090722142830.htm
Predator-prey interactions are the "conductors" of synchronicity in living organisms, according to new research.
Thu, 23 Jul 09
Genetic Marker Linked To Problem Behaviors In Adults With Developmental Disabilities
http://feeds.sciencedaily.com/~r/sciencedaily/~3/o3Nv9f-rcmE/090721122855.htm
A common variation of the gene involved in regulating serotonin and norepinephrine in the brain may be linked to problem behaviors in adults with developmental and intellectual disabilities, new research indicates.
Thu, 23 Jul 09
Purer Water With Long Shelf Life Made Possible With One Atom Change To Water Purification Product
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CbepMdwa35s/090721144643.htm
By substituting a single atom in a molecule widely used to purify water, researchers have created a far more effective decontaminant with a shelf life superior to products currently on the market. The substitution isn’t performed atom by atom using nanoscopic tweezers but rather uses a simple chemical process of dissolving aluminum salts in water, gallium salts into a sodium hydroxide solution and then slowly adding the sodium hydroxide solution to the aluminum solution while heating.
Thu, 23 Jul 09
Anti-Epilepsy Drug Risk On Cognitive Function For Unborn Children
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Od2oxbQuA6I/090721090224.htm
Interim results of a new study suggest that children aged three years and younger, who are born to women taking the anti-epileptic drug sodium valproate whilst pregnant, are likely to have an IQ of six to nine points lower than average.
Thu, 23 Jul 09
Motor Molecules Use Random Walks To Make Deliveries In Living Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RC6YEm2AOrg/090721122841.htm
Cells rely on tiny molecular motors to deliver cargo, such as mRNA and organelles, within the cell. The critical nature of this transport system is evidenced by the fact that disruption of motors by genetic defects leads to fatal diseases in humans. Although investigators have isolated these motor to study their function in a controlled environment outside the cell, it has been difficult for researchers to follow these fascinating molecular transporters in their natural environment, the living cell.
Thu, 23 Jul 09
Close Caregiver Relationship May Slow Alzheimer's Decline
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TtNn2MZZRbo/090722191219.htm
A particularly close relationship with caregivers may give people with Alzheimer's disease a marked edge over those without one in retaining mind and brain function over time. The beneficial effect of emotional intimacy that the researchers saw among participants was on par with some drugs used to treat the disease.
Thu, 23 Jul 09
New Discovery Suggests Trees Evolved Camouflage Defense Against Long Extinct Predator
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_8olL6i9Lho/090722083723.htm
Many animal species such as snakes, insects and fish have evolved camouflage defenses to deter attack from their predators. Biologists have now discovered that trees in New Zealand have evolved a similar defense to protect themselves from extinct giant birds, providing the first evidence of this strategy in plant life.
Thu, 23 Jul 09
Potential New Drug Target For Diabetes And Alzheimer's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jXVXG-pM_BA/090721214620.htm
A cellular protein that may prevent nerve cells from dying also helps to improve insulin action and lower blood glucose levels, according to a new study.
Thu, 23 Jul 09
Weight-gain Guidelines For Women Pregnant With Twins
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2Una9hzSDYg/090721144705.htm
Healthy, normal-weight women pregnant with twins should gain between 37 and 54 pounds, according to research from a professor who helped shape the recently released national guidelines on gestational weight gain.
Thu, 23 Jul 09
Extreme Glucose Levels In Diabetic Patients With Heart Failure Linked To Increase Risk Of Deaths
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wXH57teBJbI/090720190614.htm
Compared with patients with moderately controlled glucose levels, diabetic patients who have heart failure and either too high or too low glucose levels may be at increased risk of death, say researchers in a new study.
Thu, 23 Jul 09
New Statistical Tool Identifies Predictable Economic Variables
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Dp8ZUt6nt7g/090721091824.htm
You don't need a crystal ball to tell you what is going to happen next in the economy. You need a statistical model. A new method can help researchers determine which economic variables they should focus on by identifying whether a variable can be predicted.
Thu, 23 Jul 09
Life After Chemotherapy: Daily Tasks, Quality Of Life May Be Affected, Researcher Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0lqHj0vVLMg/090722142900.htm
A new study reveals that, following chemotherapy, mild decreases in skills, such as verbal fluency and problem-solving ability, affect the quality of life for cancer survivors.
Thu, 23 Jul 09
Quantum Measurements: Common Sense Is Not Enough, Physicists Show
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rJv3C7Endt8/090722142824.htm
In comparison to classical physics, quantum physics predicts that the properties of a quantum mechanical system depend on the measurement context, i.e., whether other system measurements are carried out. Physicists have for the first time proven in a comprehensive experiment that it is not possible to explain quantum phenomena in non-contextual terms.
Thu, 23 Jul 09
New Insights Into Causes Of Anorexia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/k4dGB7ZEay0/090721144640.htm
New imaging technology provides insight into abnormalities in the brain circuitry of patients with anorexia nervosa (commonly known as anorexia) that may contribute to the puzzling symptoms found in people with the eating disorder.
Thu, 23 Jul 09
Industrial Air Pollution Worse Than Vehicle Exhaust For Breathing Problems In Children
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kNZmK-nM_RU/090721091837.htm
Researchers can now confirm that air pollution caused by industry has even more grave effects than vehicle exhaust fumes.
Thu, 23 Jul 09
Cell Division Find Prompts Overhaul Of Immune Response Modeling
http://feeds.sciencedaily.com/~r/sciencedaily/~3/P60nFnmXCas/090721091940.htm
New research into the mechanics of how two types of white blood cells grow and die is fundamentally changing the development of computer models that are used to predict how immune system cells respond to a pathogenic threat.
Thu, 23 Jul 09
Corn Yield Stability Varies With Rotations, Fertility
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BZidE2FQJVA/090721113307.htm
A recent study investigated the effects of long-term cropping systems on corn grain yields, yield trends, and yield stability over the last 16 years of a long-term fertility and cropping systems experiment. This study suggests that on average in a productive Central Pennsylvania soil, the yield of corn rotated with alfalfa, red clover and timothy is modestly higher and less variable than corn grown exclusively.
Thu, 23 Jul 09
Screening For Childhood Depressive Symptoms Could Start In Second Grade
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fhGUuVdmhO4/090721135604.htm
New research indicates that screening children for symptoms of depression, the most common mental health disorder in the United States, can begin a lot earlier than previously thought, as early as the second grade.
Thu, 23 Jul 09
Uterine Cells Produce Their Own Estrogen During Pregnancy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Cd6UlrFauXc/090720190724.htm
For the first time, researchers identify the uterus as an endocrine organ.
Thu, 23 Jul 09
Lighting Revolution Forecast By Top Scientist
http://feeds.sciencedaily.com/~r/sciencedaily/~3/goI9J9KW0ic/090702080116.htm
New developments in a substance which emits brilliant light could lead to a revolution in lighting for the home and office in five years, claims a leading UK materials scientist. The source of the huge potential he foresees, gallium nitride (GaN), is already used for some lighting applications such as camera flashes, bicycle lights, mobile phones and interior lighting for buses, trains and planes. It could reduce the typical electricity consumption for lighting of a developed country by around 75% while delivering major cuts in carbon dioxide emissions from power stations, and preserving fossil fuel reserves.
Thu, 23 Jul 09
Refining Most Effective Methods To Predict Alzheimer's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bIWxVHv4W4c/090714103522.htm
A new study found that the clinical criteria for mild cognitive impairment is better at predicting who will develop Alzheimer's disease than a single memory test. This is one more piece of information to aid in the identification and early treatment of individuals most likely to develop Alzheimer's disease.
Thu, 23 Jul 09
Light Shed On DNA Mechanisms
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4oRcuvcWzH4/090717153955.htm
By manipulating individual atoms in DNA and forming unique molecules, a researcher hopes to open new avenues in research towards better understanding the mechanisms of DNA replication and transcription, and perhaps leading to new treatments for diseases.
Thu, 23 Jul 09
Risk Factors Of Cardiovascular Disease Rising In Poor, Young
http://feeds.sciencedaily.com/~r/sciencedaily/~3/d5fu6b9y4KA/090720134244.htm
Cardiovascular disease is increasing in adults under 50 and those of lower socioeconomic status, despite recent trends which show that cardiovascular disease is declining in Canada overall, say researchers. Untreated cardiovascular disease can lead to heart failure, coronary artery disease and death, and is the most common cause of hospitalization in North America.
Thu, 23 Jul 09
Human Spear Likely Cause Of Death Of Neandertal
http://feeds.sciencedaily.com/~r/sciencedaily/~3/u4cLXmPgxng/090720163729.htm
The wound that ultimately killed a Neandertal man between 50,000 and 75,000 years was most likely caused by a thrown spear, the kind modern humans used but Neandertals did not, according to new research.
Thu, 23 Jul 09
First Model Motor Nerve System That's Insulated And Organized Like Human Body
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Qqe-YlWVnMY/090721091835.htm
Researchers report on the first lab-grown motor nerves that are insulated and organized just like they are in the human body. The model system will drastically improve understanding of the causes of myelin-related conditions, such as diabetic neuropathy and later, possibly multiple sclerosis.
Thu, 23 Jul 09
Warming Climate Threatens California Fruit And Nut Production
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iSDxXT6Hduc/090721214622.htm
Winter chill, a vital climatic trigger for many tree crops, is likely to decrease by more than 50 percent during this century as global climate warms, making California no longer suitable for growing many fruit and nut crops, according to researchers.
Thu, 23 Jul 09
Treatment Of Cystic Fibrosis: Encouraging New Results For Miglustat
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qKoLReyE-dg/090721090134.htm
Miglustat is a drug currently under phase 2 clinical trials on patients suffering from cystic fibrosis. Its potential for treating the disease was discovered in 2006 and researchers can now show that daily, long-term treatment of human cystic fibrosis cells with low doses of miglustat corrects the main pathological abnormalities. They are therefore extremely hopeful that miglustat will prove effective with patients, and become the first drug able to treat the disease rather than the symptoms.
Thu, 23 Jul 09
Chasing Tiny Vehicles: Microscope Shows How Nanoferries Invade Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rOvAPmZP7GA/090720083217.htm
In future therapies, synthetic nanoparticles may well be able to ferry medicines and even genes to targets inside the body. These nanovehicles can now be directly tested and optimized using a highly sensitive microscopic method that can trace single particles all the way into a cell.
Thu, 23 Jul 09
What A Coincidence! Personal Connections Improve Sales
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0sg7DZj_I7M/090720163749.htm
If a salesperson shares a birthday or a birthplace with you, you're more likely to make a purchase, and feel good about it, according to a new study.
Thu, 23 Jul 09
Scientists Present First Genetic Evidence For Why Placebos Work
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zBAtoIR2n1s/090720191147.htm
Researchers have found a new explanation for why placebos work -- genetics. They report that in people suffering from major depressive disorder, genes that influence the brain's reward pathways may modulate the response to placebo.
Thu, 23 Jul 09
Common Cold Virus Efficiently Delivers Corrected Gene To Cystic Fibrosis Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9O7PXZhvwTg/090720202603.htm
Scientists have worked for 20 years to perfect gene therapy for the treatment of cystic fibrosis, which causes the body to produce dehydrated, thicker-than-normal mucus that clogs the lungs and leads to life threatening infections. Now scientists have found what may be the most efficient way to deliver a corrected gene to lung cells collected from cystic fibrosis patients.
Thu, 23 Jul 09
Cell Phones Turned Into Fluorescent Microscopes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CaycmViMIJw/090721214625.htm
Researchers have developed a cell phone microscope that not only takes color images of malaria parasites, but of tuberculosis bacteria labeled with fluorescent markers. The latest milestone moves a major step forward in taking clinical microscopy out of specialized laboratories into field settings for disease screening and diagnoses.
Thu, 23 Jul 09
Insights Into Failed HIV-1 Vaccine Trial
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TbO0McuKy10/090720190810.htm
The leading explanation for why the Merck HIV-1 vaccine candidate was ineffective is ruled out in new study.
Thu, 23 Jul 09
'Lab On A Chip' To Give Growers Real-time Glimpse Into Water Stress In Plants
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yKymBYHpG_Y/090708194634.htm
An embedded microsensor capable of measuring real-time water stress in living plants has been developed. In theory, the sensor will help vintners strike the precise balance between drought and overwatering -- both of which diminish the quality of wine grapes.
Thu, 23 Jul 09
Parental Stress And Air Pollution Linked To Children’s Risk For Developing Asthma
http://feeds.sciencedaily.com/~r/sciencedaily/~3/z-f0utm4AwM/090720215426.htm
Children with stressed out parents may be more susceptible to developing asthma associated with environmental triggers such as high levels of traffic-related pollution and tobacco smoke, according to a new study.
Wed, 22 Jul 09
Neural Stem Cells May Rescue Memory In Advanced Alzheimer's, Mouse Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FCYy_6Dq_T0/090720190726.htm
Scientists have shown for the first time that neural stem cells can rescue memory in mice with advanced Alzheimer's disease, raising hopes of a potential treatment for the leading cause of elderly dementia that afflicts 5.3 million people in the US. Transplanted cells 'nurse' brain back to health.
Wed, 22 Jul 09
Are We What Our Mothers Ate?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XmEmQgtfotg/090721122843.htm
Mothers' health in the days and weeks prior to becoming pregnant may determine the health of offspring much later in life, according to new research. The studies demonstrate that maternal nutrition, protein intake and level of fat in the diet may cause epigenetic changes in the developing fetus that can have long-term health consequences.
Wed, 22 Jul 09
Twinkling Nanostars Cast New Light Into Biomedical Imaging
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7htkcrEavaA/090721144649.htm
Researchers have created magnetically responsive gold nanostars that may offer a new approach to biomedical imaging. The nanostars gyrate when exposed to a rotating magnetic field, and can scatter light to produce a pulsating or "twinkling" effect. This twinkling allows them to stand out more clearly from noisy backgrounds like those found in biological tissue.
Wed, 22 Jul 09
Preimplantation Genetic Diagnosis May Pose Neurological Risks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Dz8n0sx3JN4/090721122857.htm
Preimplantation genetic diagnosis (PGD) has helped many couples conceive healthy children and is generally considered a safe practice. However, a new long-term analysis of PGD in mice suggests that this procedure may increase risks of weight gain and memory decline in adulthood.
Wed, 22 Jul 09
Geoengineering Climate Requires More Research, Cautious Consideration And Appropriate Restrictions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1027MwTCrAM/090721135559.htm
Geoengineering -- deliberately manipulating physical, chemical, or biological aspects of the Earth system to confront climate change -- could contribute to a comprehensive risk management strategy to slow climate change but could also create considerable new risks, according to a policy statement released by the American Meteorological Society.
Wed, 22 Jul 09
Pre-chewed Food Could Transmit HIV
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Mmx_dikguqo/090721163126.htm
Researchers have uncovered the first cases in which HIV almost certainly was transmitted from mothers or other caregivers to children through pre-chewed food.
Wed, 22 Jul 09
New Blue Light Nanocrystals Could Help Mitigate Global Warming
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8VKPgCj1azs/090721172417.htm
Researchers have produced nontoxic nanocrystals that efficiently emit blue light and could also play a role in long-term storage of carbon dioxide, a potential means of tempering the effects of global warming.
Wed, 22 Jul 09
Discovery May Open Door To Drug That Cuts Appetite And Boosts Energy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/axDY6V5S8Js/090720190616.htm
In a major advance in obesity and diabetes research, scientists have found that reducing levels of a key enzyme in the brain decreased appetites and increased energy levels.
Wed, 22 Jul 09
This Article Will Self-destruct: Tool To Make Online Personal Data Vanish
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aaWMytSHc7w/090721113309.htm
Private information scattered all over the Internet and impossible to control. A new system, called Vanish, puts an expiry date on electronic text. Electronic communication sent using Vanish -- such as e-mail, Facebook posts and chat messages -- would have a brief lifetime and then self-destruct.
Wed, 22 Jul 09
Nature Or Nurture? New Epigenetic Model Blurs Line In The Debate
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Sxxs4TZQwv8/090721172413.htm
A new report complicates the debate over whether nature or nurture plays the most important role in complex diseases such as psychiatric disorders, heart disease and cancer. Scientists explain how epigenetics (temporary changes in gene function) and gene mutations (permanent, heritable changes) contribute to disease risk within populations, and lays the foundation for public health interventions to reduce environmental epigenetic changes.
Wed, 22 Jul 09
Simple, Inexpensive Method To Detect Melamine Poison In Food
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dcc0ZKVM9bM/090721122851.htm
Researchers have responded to the World Health Organization's call for a simple, inexpensive method to detect melamine. Melamine is an industrial chemical that killed six Chinese children and hospitalized 150,000 last year after it was added to milk to increase its apparent protein content.
Wed, 22 Jul 09
Rates Of Secondhand Smoke Exposure High Among College Students
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PQjNHXyAcls/090721091833.htm
Secondhand smoke is not only a nuisance, but a potential health concern for many college students, and administrators should be taking steps to reduce students' exposure, according to a new study.
Wed, 22 Jul 09
Ancient Humans Left Evidence From The Party That Ended 4,000 Years Ago
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sluT22Z9B2M/090721135602.htm
The party was over more than 4,000 years ago, but the remnants still remain in the gourds and squashes that served as dishware. For the first time, researchers have studied the residues from gourds and squash artifacts that date back to 2200 B.C. and recovered starch grains from manioc, potato, chili pepper, arrowroot and algarrobo. The starches provide clues about the foods consumed at feasts, and document the earliest evidence of the consumption of algarrobo and arrowroot in Peru.
Wed, 22 Jul 09
Potential Pathogenic Mutation For Restless Legs Syndrome
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YcbSawYpmbg/090721144635.htm
Scientists have found what they believe is the first mutated gene linked to restless legs syndrome, a common neurologic disorder.
Wed, 22 Jul 09
Rock Climbing-related Injuries Increasing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RmyebJIciHg/090721122848.htm
The popularity of rock climbing has increased in the last ten years, and so have the number of injuries. A new study finds a 63 percent increase in the number of patients treated in emergency departments for rock climbing-related injuries.
Wed, 22 Jul 09
How Stressed Fat Tissue Malfunctions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3Tn70fBloDs/090714125002.htm
Fat tissue dysfunction is caused by obesity-induced fat tissue stress: Cells over-grow as they store fat which may cause decreased oxygen delivery into the tissue; individual cells may die (at least in mouse models), and fat tissue inflammation ensues. The teams collected fat tissue samples from people undergoing abdominal surgery and identified a signaling pathway that is operational in intra-abdominal fat, the fat depot that is most strongly tied to obesity-related morbidity.
Wed, 22 Jul 09
Could Cosmic Ray Influence Climate By Charging Up More Frequent Lightning Storms?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BqdQkSE6VNk/090721090127.htm
Could cosmic rays be influencing climate by charging up more frequent lightning storms? Several factors influence global climate change. Long-term influences that work over hundreds of thousands of years have an astronomical origin, namely the eccentricity, axial tilt and precession of the Earth's orbit.
Wed, 22 Jul 09
Taste Sensation: Ads Work Better If All Senses Are Involved
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dugiQAL0PXM/090720190735.htm
Corporations spend billions of dollars each year on food advertising. For example, Kraft Foods, PepsiCo, and McDonald's each spent more than $1 billion in advertising in 2007. A new study suggests those advertisers are missing out if their ads only mention taste and ignore our other senses.
Wed, 22 Jul 09
Neon Blue-tailed Tree Lizard Glides Like A Feather, Thanks To Light Bubbly Bones
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MQhJkTiqwCc/090717090824.htm
Neon blue-tailed tree lizards are perfectly happy scurrying from branch to branch in their arboreal homes, but it wasn't clear whether they simply leaping between branches or glide. Researchers compared the tree lizards' jumps with common wall lizards' and gliding geckos' leaps, and found that the tree lizards glide because they are incredibly light. Their bones are packed with tiny air bubbles that make them feather light.
Wed, 22 Jul 09
Breast Cancer Drug Shows Promise Against Serious Infections
http://feeds.sciencedaily.com/~r/sciencedaily/~3/d0KYj2H--ng/090720134519.htm
An FDA-approved drug used for preventing recurrence of breast cancer shows promise in fighting life-threatening fungal infections common in immune-compromised patients, such as infants born prematurely and patients with cancer.
Wed, 22 Jul 09
Combating Iron Deficiency: Rice With Six Times More Iron Than Polished Rice Kernels Developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/I1MDPdL1kuc/090721090129.htm
Scientists have developed rice plants that contain six times more iron in polished rice kernels. To accomplish this, the researchers transferred two plant genes into an existing rice variety. In the future, the high-iron rice could help to combat iron deficiency, especially in developing countries in Africa and Asia.
Wed, 22 Jul 09
Improving Mouse Heart Function Following Heart Attack
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kg-0XG-2JMw/090713201437.htm
One approach being developed as a way to improve heart function following heart attack is the injection of heart stem/progenitor cells directly into the heart. New research now indicates that transplanting sheets of clonally expanded heart cells expressing the protein Sca-1 (cells that are stem/progenitor cells) improves heart function after a heart attack in mice.
Wed, 22 Jul 09
New Insights Into Iran's Past: Landlord Villages Of The Tehran Plain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HxkZR5XB-eI/090710092230.htm
A British archaeologist has just returned from a period of fieldwork in Iran, working on the first archaeological project in the country to explore the very recent past. The project looks at the effects the Iranian White Revolution of the 1960s and 1970s had on the ancient ‘Landlord Villages’ of the early Islamic period of the country’s history.
Wed, 22 Jul 09
Trash Or Treasure? Families And Their Beloved Possessions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-P-qKp3PjKY/090720190737.htm
Whether it's grandpa's piano or a Nintendo Wii, certain objects become a part of family routines and histories. A new study helps explain why some possessions wind up in permanent storage or get tossed away, while others are kept for generations.
Wed, 22 Jul 09
Scientists Capitalize On Extended Solar Eclipse
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bmVQDfTkRjU/090722011637.htm
Scientists at an observatory outside Hangzhou joined residents and tourists across China and India in observing the longest total solar eclipse in a century and probably the most-viewed ever.
Wed, 22 Jul 09
Testing Relativity, Black Holes And Strange Attractors In The Laboratory
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vvtLeblExP8/090720134239.htm
Physicists have determined that the interactions of light and matter with spacetime, as predicted by general relativity, can be studied using the new breed of artificial optical materials that feature extraordinary abilities to bend light and other forms of electromagnetic radiation.
Wed, 22 Jul 09
Promising New Treatment For Alzheimer’s Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mNU7tKzhCEI/090720083210.htm
A promising approach has been developed to help treat Alzheimer’s disease in a significant proportion of the population that suffers from a particularly rapid development of this disease.
Wed, 22 Jul 09
Estimating Crop Water Needs Using Unmanned Aerial Vehicles
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yd2_UqWa2XQ/090707094702.htm
Using a system of unmanned aerial vehicles (UAV) equipped with thermal multispectral cameras scientists will be conducting flights over experimental plots with different crops, some of them being the largest pistachio nut crop in the world, as well as over almond tree and vineyard crops spread across the State of California. This system allows you to know the ideal time to water the crops, saving water, and it can even be used to detect situations of water waste or water leaks in the irrigation system.
Wed, 22 Jul 09
Novel Gene Found For Dilated Cardiomyopathy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SZU5rlb2h9o/090713201430.htm
Researchers have discovered a novel gene responsible for heart muscle disease and chronic heart failure in some children and adults with dilated cardiomyopathy.
Wed, 22 Jul 09
Beneficial Biofuels: Leading National Experts Reach Consensus
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hYBdd6CNad4/090716141219.htm
Biofuels can be produced in large quantities and have multiple benefits, but only if they come from feedstocks produced with low life-cycle greenhouse gas emissions, as well as minimal competition with food production, according to a group of experts.
Wed, 22 Jul 09
When Context Matters: Consumers Link Unfamiliar Products To Surrounding Items
http://feeds.sciencedaily.com/~r/sciencedaily/~3/p38XrHtdEV0/090720190739.htm
Sometimes we judge a product by the company it keeps. For example, we might think a car advertised among expensive cars is also pricey -- but only if we're unfamiliar with the car, according to a new study.
Wed, 22 Jul 09
How Evolution Can Allow For Large Developmental Leaps
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-ytEyyVps5o/090720163716.htm
Most evolutionary changes happen in tiny increments. But when it comes to traits like the number of wings on an insect, or limbs on a primate, there is no middle ground. How are these sorts of large evolutionary leaps made? According to new research, such changes may at least sometimes be the result of random fluctuations, or noise (nongenetic variations), working alongside a phenomenon known as partial penetrance.
Wed, 22 Jul 09
Ovary Removal May Increase Lung Cancer Risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kuTcM6Zd3FQ/090721104244.htm
Women who have premature menopause because of medical interventions are at an increased risk of developing lung cancer, according to a new study.
Wed, 22 Jul 09
Future Of Western U.S. Water Supply Threatened By Climate Change
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vbMQHEI5UvM/090720163555.htm
As the West warms, a drier Colorado River system could see as much as a one-in-two chance of fully depleting all of its reservoir storage by mid-century assuming current management practices continue on course, according to a new study.
Wed, 22 Jul 09
Immune Protection Against Lethal Parasitic Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Vjdegrx5eHw/090713201440.htm
Kala azar is a lethal disease caused by infection with the protozoan parasite Leishmania donovani. Scientists have now obtained new insight into the human immune responses responsible for protection against kala azar.
Wed, 22 Jul 09
Rice Defies Its Reputation As A Thirsty Crop
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9-MpsIgWK6s/090720102014.htm
Two new sister lines of rice are defying rice's reputation as a thirsty crop as they demonstrate their improved productivity in drought-prone regions of India and the Philippines.
Wed, 22 Jul 09
Can The Relationship Between Doctors And Drug Companies Ever Be A Healthy One?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/z8YDW3b4tro/090720202559.htm
Should the financial ties between doctors and drug companies be completely cut, or are healthy alliances between the two possible with the common aim of improving human health? A debate in PLoS Medicine discusses whether the influence of drug company money on doctors is always a corrupting one.
Wed, 22 Jul 09
Brain's Center For Perceiving 3-D Motion Is Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_QOeFr3CiuU/090721091831.htm
Neuroscientists have now pinpointed where and how the brain processes 3-D motion using specially developed computer displays and an fMRI (functional magnetic resonance imaging) machine to scan the brain.
Wed, 22 Jul 09
New DNA Vaccine Inhibits Deadly Skin Cancer In Mice
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7EhUhNVDWuw/090721110609.htm
A new DNA vaccine inhibited malignant melanoma, a deadly form of skin cancer, in mice by eliciting antibodies that target a gastrin-releasing peptide which is known to play a key role in cancer development.
Wed, 22 Jul 09
New Biosensor Detects Extremely Low Bacteria Concentrations Quickly, Easily And Reliably
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pEnB3MhM3m4/090720134517.htm
Scientists have developed a new technique to detect extremely low concentrations of the typhus-inducing Salmonella typhi by using a biosensor, which is based on electrochemical measurements by means of carbon nanotubes equipped with aptamers as bacteria-specific binding sites.
Wed, 22 Jul 09
New Drug Candidate Prolongs The Lives Of Pancreatic Cancer Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wOLYIE5lXOM/090720134512.htm
The new drug compound Salirasib has shown positive results against pancreatic cancer and recently passed Phase I/II clinical trials. The drug, given in combination with gemcitabine, the standard drug used to combat pancreatic cancer, almost doubled the life expectancy of those who received it.
Wed, 22 Jul 09
Design Tool For Materials With A Memory
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OC9grLffSYY/090713114457.htm
Shape memory alloys can "remember" a condition. If they are deformed, a temperature change can be enough to bring them back to their original shape. A simulation calculates the characteristics of these materials.
Wed, 22 Jul 09
Gene Variations Can Be Barometer Of Behavior, Choices
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eaju6H9pi4Y/090720134242.htm
Researchers have determined that variations of three different genes in the brain (called single-nucleotide polymorphisms) may help predict a person’s tendency to make certain choices.
Wed, 22 Jul 09
Electronic Nose Created To Detect Skin Vapors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LgSB0qIfDBo/090721091839.htm
Scientists have developed a system to detect the vapors emitted by human skin in real time. The scientists think that these substances, essentially made up of fatty acids, are what attract mosquitoes and enable dogs to identify their owners.
Wed, 22 Jul 09
Skin-like Tissue Developed From Human Embryonic Stem Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Yx74k5tUjBw/090721104235.htm
Researchers have used pluripotent human embryonic stem cells to create three-dimensional tissues that mimic human skin and the oral mucosa.
Wed, 22 Jul 09
Infection-Causing Amoeba May be Resistant to Multiple Contact Lens Solutions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HZxyohK1ZF8/090721091841.htm
Some contact lens solutions do not properly disinfect against Acanthamoeba, a free-living organism in the environment that can cause a painful vision-threatening infection, according to new reseearch.
Wed, 22 Jul 09
Network Of Altered Genes Appear To Play Role In Development Of Brain Tumors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/p2wYbhVtni8/090714165043.htm
The interaction between a network of altered genes appears to play an important role in the development and progression of brain tumors, according to a new study.
Wed, 22 Jul 09
Seat Belt System Aims To Make Child Seats Safer In The Event Of Frontal Impacts
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2FyldbURaDA/090714154943.htm
Researchers have designed a load limiter that reduces the pressure on the chest area by absorbing part of the energy produced in a frontal impact. The system reduces the speed at which the child is thrown forward and back into the seat, a movement that leads to serious injury in many accidents.
Tue, 21 Jul 09
California's Channel Islands Hold Evidence Of Clovis-age Comets
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XzWrjCeAVk4/090720190719.htm
Scientists have found what may be the smoking gun of a much-debated proposal that a cosmic impact about 12,900 years ago ripped through North America and drove multiple species into extinction.
Tue, 21 Jul 09
C. Difficile Spores Spread Superbug
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7PlQUqGMoRc/090720134522.htm
A team of scientists have modeled the infection cycle of C. difficile by generating a "mouse hospital" with conditions mimicking transmission in the human environment. The scientists suggest that antibiotic treatment could be asymptomatically inducing the transmission of healthcare-acquired C. difficile, contributing to the outbreaks that have been widely reported in hospitals and other settings. The results have implications for infection control measures and open the door for improved diagnosis of C. difficile.
Tue, 21 Jul 09
Green Tea: Mixed Reviews For Cancer Prevention
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qceLWx-pQXE/090714204022.htm
Lifestyle choices are pieces of the cancer prevention puzzle, but exactly which steps to take remain unclear, even to scientists. Still, more and more individuals are incorporating small changes into their daily routine -- such as drinking green tea -- in hopes of keeping cancer risk at bay. Is it working? A large new review of studies that examined the affect of green tea on cancer prevention has yielded conflicting results.
Tue, 21 Jul 09
Genetic Variation Associated With Survival Advantage In African-Americans With HIV
http://feeds.sciencedaily.com/~r/sciencedaily/~3/f0Sg1UkHLJk/090720190805.htm
From the start of the HIV epidemic, it appeared that some of the people who were infected with the virus were able to ward off the fatal effects of the disease longer than others.
Tue, 21 Jul 09
Overfishing And Evolution: Fish Fear Their Census-takers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Z-RhMwq_Z7k/090720111446.htm
Using snorkelers and SCUBA divers is not the best way to monitor fish populations, if we want to know the evolutionary effects of overfishing. The fish population in coral reef areas is often assessed by snorkelers or SCUBA divers, but new research shows that these methods may misrepresent the number of fish.
Tue, 21 Jul 09
Starve A Fever, Feed A Cold, Don't Be Stressed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YSRsDQyvLs4/090720163719.htm
Whether it's getting a cold during exam time or feeling run-down after a big meeting, we've all experienced feeling sick following a particularly stressful time at work or school. Is this merely coincidence, or is it possible that stress can actually make us sick? A new report reviews research investigating how stress can wreak havoc on our bodies, and provides some suggestions to further our understanding of this connection.
Tue, 21 Jul 09
Growing Sea Lamprey Embryos Dramatically Alter Genomes, Discard Millions Of Units Of DNA
http://feeds.sciencedaily.com/~r/sciencedaily/~3/F1dF5rwaSmE/090720163734.htm
Sea lampreys, which arose from the jawless fish that first appeared a half-billion years ago, dramatically remodel their genomes during embryonic development. This is believed to be the first recorded observation of a vertebrate reorganizing its genome during normal development. Evolutionary biologists are interested in how and why the lamprey re-organizes its genome because the animal is a living fossil with millions of years of evolutionary history. Its closest ancestors were among the first vertebrates on earth.
Tue, 21 Jul 09
Induced Pluripotent Stem Cells Repair Heart, Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-viQfth6qZk/090720163539.htm
In a proof-of-concept study, researchers have demonstrated that induced pluripotent stem (iPS) cells can be used to treat heart disease. iPS cells are stem cells converted from adult cells.
Tue, 21 Jul 09
New Target For Tailored Antibiotics Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mv7ZoORJOPA/090714103534.htm
More and more strains of bacteria are developing resistance to previously life-saving antibiotics. Researchers have now shed light on a metabolic step that appears in many aggressive microorganisms -- such as tuberculosis and malaria pathogens -- and that may provide a promising target for a new class of antibiotics.
Tue, 21 Jul 09
Clotting In Veins Close To Skin May Be Associated With More Dangerous Deep-vein Blood Clots
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DXv1S-OSrpY/090720163553.htm
About one-fourth of patients with superficial vein thrombosis -- clotting in blood vessels close to the skin -- also may have the life-threatening condition deep vein thrombosis, according to a new report.
Tue, 21 Jul 09
Spaced Out Trees Reduce Urban Pollution
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cH7j91jw2Zo/090720105127.htm
A new study suggests that we can improve city environments by planting trees down the middle of streets provided they are not too close together. Too many trees planted close together along a central strip, as is common in many major European cities could lead to more vehicle exhaust fumes being trapped in the urban canyon than would occur if there were no trees.
Tue, 21 Jul 09
Nature? Nurture? Child Development Scientists Say Neither
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hwU98F-I4ck/090720163723.htm
It's easy to explain why we act a certain way by saying "it's in the genes," but a group of child development scientists say the world has relied on that simple explanation far too long. The scientists call for tossing out the nature-nurture debate, which they say has prevailed for centuries in part out of convenience and intellectual laziness.
Tue, 21 Jul 09
Object Hits Jupiter, New NASA Images Indicate
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CuaMcuf5s3g/090720225213.htm
Scientists have found evidence that another object has bombarded Jupiter, exactly 15 years after the first impacts by the comet Shoemaker-Levy 9.
Tue, 21 Jul 09
Genes Linked To Chemoresistance Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kOJFqyCULzA/090720163732.htm
Two genes may contribute to chemotherapy resistance in drugs like 5-fluorouracil, which is used in liver cancer treatment, according to cancer researchers.
Tue, 21 Jul 09
Minerals On Mars Influence Measuring Of Its Temperature
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wuQmiGc6Rkk/090714103528.htm
Researchers have confirmed that the type of mineralogical composition on the surface of Mars influences the measuring of its temperature. The study will be used to interpret the data from the soil temperature sensor of NASA's Mars Science Laboratory vehicle, whose launch is envisaged for 2011.
Tue, 21 Jul 09
Studies Shed Light On Preserving Fertility Among Cancer Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OoxEgbB6gcg/090720134237.htm
Successes in cancer treatment have created a challenge for young cancer patients since the chemotherapy and radiation treatments that save lives threaten fertility. Researchers are now reporting on how they are maturing human eggs in the laboratory, improving current techniques and discovering new cellular mechanisms that could help preserve and even restore fertility.
Tue, 21 Jul 09
Wolf Reintroduction Proposed In Scottish Highland Test Case
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FbUn0zAseDc/090720134527.htm
Researchers are proposing in a new report that a major experiment be conducted to reintroduce wolves to a test site in the Scottish Highlands, to help control the populations and behavior of red deer that in the past 250 years have changed the whole nature of large ecosystems.
Tue, 21 Jul 09
The Sounds Of Learning: Studying The Impact Of Music On Children With Autism
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IMiHuAt4uTM/090720220414.htm
The power of music affects all of us and has long appealed to our emotions. It is for this reason that researchers are using music to help children with autism spectrum disorders, for whom understanding emotions is a very difficult task. This inability robs them of the chance to communicate effectively and make friends and can often lead to social isolation and loneliness.
Tue, 21 Jul 09
Extreme Survival: Genes Let Creepy-crawly Creatures Survive Deep Freeze
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iVAPckX10oM/090720191143.htm
Arctic springtails (Megaphorura arctica) survive freezing temperatures by dehydrating themselves before the coldest weather sets in. Researchers have identified a suite of genes involved in controlling this extreme survival mechanism.
Tue, 21 Jul 09
Immunotherapy Linked To Lower Risk Of Alzheimer's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZNvFL0bujco/090720163536.htm
Immunotherapy IVIg treatments, the addition of good antibodies into the blood stream, may hold promise for lowering the risk of Alzheimer's disease and other similar brain disorders, according to new research.
Tue, 21 Jul 09
Bacterial Quorum Sensing: A Matter Of Density, Not Quantity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oCAuYNtPWVg/090710101452.htm
Researchers have demonstrated that the absolute number of cells is irrelevant to the process of bacterial quorum sensing; only the number of bacteria in a given volume plays a role. They were even able to trigger quorum-sensing processes in single cells when these were confined in extremely small volumes.
Tue, 21 Jul 09
Earlier HIV Antiviral Treatment Can Be Cost Effective In Areas Of Limited Resources, South African Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pYEYX-oOsWI/090720134235.htm
Early initiation of lifesaving antiretroviral therapies should be the standard of care for all HIV-infected patients, even those in countries with limited medical and financial resources, according to a study in South Africa.
Tue, 21 Jul 09
H1N1 Influenza Pandemic Modeling For Public Health Action
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LOsIDEI7wU4/090720134227.htm
Mathematical modeling can help inform public health policy in outbreaks such as the H1N1 pandemic, write members of the Pandemic Influenza Outbreak Research Modeling Team in Canada. These models are useful tools for simulating plausible scenarios, developing control strategies and identifying important areas for immediate research.
Tue, 21 Jul 09
Pregnancy Complications Are A Stress Test For Future Maternal Health And Pregnancies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ny98NHDAXCo/090720092026.htm
Predicting whether pregnancy complications affect long-term maternal health as well as future pregnancies is at the heart of two new studies. Women who have had two pregnancies complicated by preeclampsia are at a higher risk of hypertension after pregnancy, according to one of the new studies. The other study shows that preterm delivery, preeclampsia and low-birth weight tend to recur in a second pregnancy.
Tue, 21 Jul 09
Babies Understand Dogs, Bark-matching Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tGIolYD0Ovk/090720163559.htm
A new study shows that babies understand dogs. The experiments found 6-month-olds can match the sounds of friendly and aggressive barks to corresponding pictures of dogs, which they accomplished on the first try.
Tue, 21 Jul 09
Gene Linked To Increasingly Common Type Of Blood Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eHeeIUc-yo8/090720134232.htm
Carriers have nearly twice the risk of developing follicular lymphoma, according to cancer's first genome-wide association study.
Tue, 21 Jul 09
Virtually Engineering Power Plants
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xPuo9O7NH7U/090713085451.htm
Photovoltaic and wind energy plants, hydroelectric power stations and biogas plants supply energy without polluting the environment. However, they are complex to design and maintain. Virtual reality (VR) makes planning and operation easier.
Tue, 21 Jul 09
Alzheimer's Drug Increases Toxic Beta Amyloid In Brain, But Still Provides Benefits
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UUDBwOLoQwY/090715074934.htm
New insights into how a Phase III Alzheimer's drug might work were among the advances in potential therapies targeting two brain proteins -- amyloid and tau -- recently reported. Scientists also reported on how clinicians view and treat mild cognitive impairment, a research category used to define the state between normal aging and Alzheimer's, that is now being used widely in clinical practice.
Tue, 21 Jul 09
Slotted Buses Keep Passengers Cool: Improving Bus Design Cools Passengers, Saves Fuel
http://feeds.sciencedaily.com/~r/sciencedaily/~3/abD0204PlRk/090720111444.htm
A simple redesign of public buses used in hot and dry climates could make passengers more comfortable without the need to use extra fuel running air conditioning, according to a new study,
Tue, 21 Jul 09
Social Support Buffers Adolescent Depression After Terrorist Attacks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bkFnVaRebuw/090720134554.htm
Researchers have conducted a "before and after" study of depression and terrorist attacks in adolescents, demonstrating that strong social support from friends is a buffer from depression in terrorism-related stress.
Tue, 21 Jul 09
Researchers Help Crack Parasite Genome, Identify Drug Leads
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7o145-epzsw/090715143832.htm
Two recent research papers are marking major breakthroughs in the effort to tackle schistosomiasis (bilharzia), a tropical disease that infects more than 200 million people worldwide and causes long-term debilitating illness and occasional paralysis or death.
Tue, 21 Jul 09
Fist-sized Tumor From Brain With Help Of New 3-D Brain Mapping
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CszIHWBUTq4/090714143908.htm
A new technology involving the fusion of four different types of images into a 3-D map of a patient's brain has helped specialists successfully remove a fist-sized tumor from the brain of an Indiana woman.
Tue, 21 Jul 09
Potential Failure Of Oral Contraceptives With Obese Women Explained
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Zrh7vFIPPJg/090714143904.htm
Researchers have identified a potential biological mechanism that could explain why oral contraceptives may be less effective at preventing pregnancy in obese women, as some epidemiological studies have indicated.
Tue, 21 Jul 09
Not 'Genomic Junk' After All: LincRNAs Have Global Role In Genome Regulation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kAbGrYnty24/090714125004.htm
A scientific team shows that lincRNAs -- once dismissed as "genomic junk" -- have a global role in genome regulation.
Tue, 21 Jul 09
'Heart Healthy' Diet And Ongoing, Moderate Physical Activity May Protect Against Cognitive Decline
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wCKK4Xj3PPU/090714103519.htm
Eating a "heart healthy" diet and maintaining or increasing participation in moderate physical activity may help preserve our memory and thinking abilities as we age, according to new research.
Tue, 21 Jul 09
Radioactive Material From Dying Supernova May Have Spawned Our Solar System
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dsavZ0TgvHk/090720092022.htm
Astrophysicists have discovered a new explanation for the early composition of our solar system. Radioactive nuclei found in the earliest meteorites, dating back billions of years, could have been delivered by a nearby dying giant star of six times the mass of the sun.
Tue, 21 Jul 09
New Strategy In Tumor Treatment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ms92Uitqu_g/090720092024.htm
A new strategy may treat tumors that do not respond to conventional treatment. Medical researchers used a two part strategy to selectively kill tumors while protecting healthy cells.
Tue, 21 Jul 09
Ticking Bomb: Novel Procedure Treats High-risk Aortic Aneurysms
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FMr5ga9uWXs/090715143834.htm
A new hybrid technique has been developed to treat aortic aneurysms in high-risk patients called CESA (combined endovascular and surgical approach). Since 1998, the procedure has been performed on 31 patients. The surgical team reported excellent results in the first 20 high-risk patients with complex aortic pathology treated with CESA. The technique has been gaining popularity at centers throughout the world for high-risk cases.
Tue, 21 Jul 09
Program For Cyber Security 'Neighborhood Watch' Developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/i994y5BQz5E/090716164344.htm
U.S. Department of Energy laboratories fight off millions of cyber attacks every year, but a near real-time dialogue between these labs about this hostile activity has never existed -- until now. Scientists have devised a program that allows for Cyber Security defense systems to communicate when attacked and transmit that information to cyber systems at other institutions in the hopes of strengthening the overall cyber security posture of the complex.
Tue, 21 Jul 09
Study Calls For New Approach To Teaching English As A Lingua Franca
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RYfG04JwEts/090720083219.htm
A study highlights the need for a new approach to the teaching of English pronunciation given that English is now a lingua franca, with more non-native speakers in the world than native speakers.
Tue, 21 Jul 09
Risk Of Huge Pacific Ocean Tsunami On West Coast Of America Greater Than Previously Thought
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CAS7JuQmpHM/090720083421.htm
The potential for a huge Pacific Ocean tsunami on the West Coast of America may be greater than previously thought, according to a new study of geological evidence along the Gulf of Alaska coast. The new research suggests that future tsunamis could reach a scale far beyond that suffered in the tsunami generated by the great 1964 Alaskan earthquake.
Tue, 21 Jul 09
Children's IQ Can Be Affected By Mother's Exposure To Urban Air Pollutants, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/t2foHzlu8Yg/090720111453.htm
Prenatal exposure to environmental pollutants known as polycyclic aromatic hydrocarbons can adversely affect a child's intelligence quotient or IQ, according to new research.
Tue, 21 Jul 09
Sweet, Salty, Sour, Bitter And Umami: Variants Of 'Umami' Taste Receptor Contribute To Our Individualized Flavor Worlds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vFktKG7mfMw/090708114754.htm
Using a combination of sensory, genetic, and in vitro approaches, researchers confirm that the T1R1-T1R3 taste receptor plays a role in human umami (amino acid) taste. They further report that variations in a gene that codes for this receptor correspond to individual differences in sensitivity to and perceived intensity of umami taste.
Tue, 21 Jul 09
How Flu Damages Lung Tissue
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Dy0DCcc1oE0/090717150302.htm
A protein in influenza virus that helps it multiply also damages lung epithelial cells, causing fluid buildup in the lungs, according to new research. The researchers say the recent outbreak of H1N1 influenza and the rapid spread of this strain across the world highlight both the need to better understand how the virus damages the lungs and the urgency to find new treatments. Influenza is a contagious disease leading to about 36,000 human deaths and 200,000 hospitalizations every year in the United States alone.
Tue, 21 Jul 09
University Has Grand Designs To Build A House Of Straw
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_8EX4QS96aA/090716093512.htm
Could straw houses be the buildings of the future? That’s what researchers will be testing this summer by constructing a “BaleHaus” made of prefabricated straw bale and hemp cladding panel.
Tue, 21 Jul 09
Young Men Living At Home With Parents Are More Violent, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TykXWnphD1g/090720102019.htm
Young men who stay at home with their parents are more violent than those who live independently, according to new research. Men still living at home in their early twenties have fewer responsibilities and more disposable income to spend on alcohol. This group makes up only four percent of the UK's male population but they are responsible for 16 percent of all violent injuries in the last five years.
Mon, 20 Jul 09
Fossilized Dung Balls Reveal Secret Ecology Of Lost World
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GIQWmB0R8-Q/090716093524.htm
A new study of 30-million-year-old fossil 'mega-dung' from extinct giant South American mammals reveals evidence of complex ecological interactions and theft of dung-beetles' food stores by other animals.
Mon, 20 Jul 09
Drug Prevents Epilepsy Following Traumatic Brain Injury In Rats
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hueISineXxM/090714191850.htm
According to one theory, severe head injury causes leaks in the blood-brain barrier that allow entry of serum albumen, which triggers epilepsy and seizures. Scientists now show that albumen interacts with the TGF-beta receptor on astrocytes, triggering a cascade of events that lead to epilepsy. In rats, TGF-beta blockers stop such changes in the brain, and may halt development of epilepsy in humans.
Mon, 20 Jul 09
Controlling Kudzu With Naturally Occurring Fungus
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oMWGWAPJLOk/090719185107.htm
Kudzu, "The Vine that Ate the South," could meet its match in a naturally occurring fungus that scientists have formulated as a biologically based herbicide.
Mon, 20 Jul 09
Early-life Experience Linked To Chronic Diseases Later In Life
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_zOo_IAoM_o/090714143906.htm
People's early-life experience sticks with them into adulthood and may render them more susceptible to many of the chronic diseases of aging, according to a new study.
Mon, 20 Jul 09
Cooking With Sound: Bio-Mass Burning Stove Also Converts Heat Into Sound Then Electricity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RQE9beroVPc/090717170933.htm
A low-cost generator with the potential to transform lives in the world’s poorest communities is now being tested across the UK and in Nepal. Researchers are developing a bio-mass burning cooking stove which also converts heat into acoustic energy and then into electricity, all in one unit.
Mon, 20 Jul 09
Secrets Of A Life-giving Amino Acid Revealed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3nXxG6bGskA/090716141136.htm
Selenium is a trace element crucial to life -- too little or too much of it is fatal. Scientists now detail the molecular mechanisms that govern its metabolism in the human body.
Mon, 20 Jul 09
New Information About DNA Repair Mechanism Could Lead To Better Cancer Drugs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZAtwIURP8g4/090716201134.htm
Researchers have shed new light on a process that fixes breaks in the genetic material of the body's cells. Their findings could lead to ways of enhancing chemotherapy drugs that destroy cancer cells by damaging their DNA.
Mon, 20 Jul 09
New Mechanism Controlling Neuronal Migration Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DFMmBg1FgHA/090715143843.htm
The molecular machinery that helps brain cells migrate to their correct place in the developing brain has been identified. Understanding how neurons migrate to their proper place during brain development will offer insights into how malfunctions in the machinery cause epilepsy and mental retardation.
Mon, 20 Jul 09
Heart Pump With Air Propulsion
http://feeds.sciencedaily.com/~r/sciencedaily/~3/o34Bj2vGmt0/090707094820.htm
A tiny heart catheter pump which supports the human heart in critical conditions while pumping has been developed.
Mon, 20 Jul 09
Preemies Born In Poverty Four Times Less Likely Ready For School
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-cDF-HfgRYQ/090717104628.htm
Advances in neonatal care enable two-thirds of premature babies born with respiratory problems to be ready for school at an appropriate age, but those living in poverty are far less likely to be ready on time. Although several medical factors were associated with lower school readiness, the most powerful factor was low socioeconomic status.
Mon, 20 Jul 09
New Geothermal Heat Extraction Process To Deliver Clean Power Generation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0n3xiWkr3is/090716113356.htm
A new method for capturing significantly more heat from low-temperature geothermal resources holds promise for generating virtually pollution-free electrical energy. Scientists will determine if their innovative approach can safely and economically extract and convert heat from vast untapped geothermal resources.
Mon, 20 Jul 09
New Brain Receptor Identified as Possible Target For Alzheimer's Treatment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yFtGmvwmSpI/090716141223.htm
Researchers have identified a novel receptor in the brain that is extremely sensitive to beta-amyloid peptide and may play a key role in early stages of Alzheimer's disease.
Mon, 20 Jul 09
Estrogen Can Reduce Stroke Damage By Inactivating Protein
http://feeds.sciencedaily.com/~r/sciencedaily/~3/m6PmrV9XLHc/090716113304.htm
Estrogen can halt stroke damage by inactivating a tumor-suppressing protein known to prevent many cancers researchers say.
Mon, 20 Jul 09
Gliomas Exploit Immune Cells Of The Brain For Rapid Expansion
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZkYLhphxi5Q/090716113250.htm
Gliomas are among the most common and most malignant brain tumors. These tumors infiltrate normal brain tissue and grow very rapidly. As a result, surgery can never completely remove the tumor. Now, neurosurgeons and brain researchers have been able to show that glioma cells exploit microglia, the immune cells of the brain, for their expansion.
Mon, 20 Jul 09
Global Model For The Origin Of Species Independent Of Geographical Isolation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/c5iDkzDBtkg/090717150258.htm
Using a computer to settle the debate over the origin of species independent of geographic isolation, researchers developed a global model without boundaries and ecosystem niches. The study's biodiversity results provide additional evidence that species diversity arises without specific physical barriers. It also lays the groundwork for more powerful tests of the role played by natural and sexual selection as well as habitat complexity.
Mon, 20 Jul 09
Genes And The Environment Interact To Influence Adolescent Alcohol Use
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4MnpUMaPDlk/090716164333.htm
Adolescent alcohol use and behavior problems are influenced by both genetic and environmental factors. New findings show that behavioral problems may represent an earlier manifestation of a genetic predisposition to subsequent alcohol problems. Females may also be more susceptible to a variety of environmental influences than males.
Mon, 20 Jul 09
Edible Coating Makes Fish Fillets Longer-lasting, Healthier
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dOS8PAzrh-0/090716164346.htm
Consumers may soon be able to eat longer-lasting, potentially healthier fish filets. Scientists have extended the shelf life of lingcod fillets and made them more nutritious by dipping them into an edible, protective coating enriched with fish oil.
Mon, 20 Jul 09
Molecules Discovered With A Higher Selective Ability To Exterminate Cancer Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_cCfLesbBk8/090709072906.htm
Researchers have obtained a new type of molecules which have proven -in in vitro cultivations- a high level of efficiency against cancer cells, as well as very low toxicity against the body’s normal cells.
Mon, 20 Jul 09
New Evidence That Popular Dietary Supplement May Help Prevent, Treat Cataracts
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GP4zy2uQXsw/090715101443.htm
Tissue culture experiments show that the popular dietary supplement carnosine may help to prevent and treat cataracts, a clouding of the lens of the eye that is a leading cause of vision loss worldwide.
Mon, 20 Jul 09
Thalidomide Does Not Improve Survival In Small Cell Lung Cancer, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hGST8GfUG_I/090716164337.htm
Treating patients with thalidomide in combination with chemotherapy for small cell lung cancer did not improve their survival but did increase their risk of blood clots, according to a new study.
Mon, 20 Jul 09
Software To Unlock The Power Of Grids
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9QaH6E5gAsE/090713211617.htm
A huge amount of computing power sits idle most of the time, and new technologies enabling the sharing of resources aim to capitalise on that. Now European researchers have developed software to simultaneously run applications on very different IT infrastructures.
Mon, 20 Jul 09
Children With Fetal Alcohol Spectrum Disorders (FASD) Have More Severe Behavioral Problems Than Children With Attention Deficit Hyperactivity Disorder (ADHD), Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VFhuvCcpCGs/090716164335.htm
Children with fetal alcohol spectrum disorders (FASD) have a high risk of psychiatric problems, including attention deficit hyperactivity disorder (ADHD). Children with FASD are often initially diagnosed with ADHD. A first-of-its-kind study shows that children with FASD have a distinct behavioural profile: significantly weaker social cognition and facial emotion-processing abilities than children with ADHD.
Mon, 20 Jul 09
Scientists Look Beyond Earth To Understand Auroras
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HtunJrxREZo/090719194337.htm
The eerie beauty of the northern and southern lights has evoked visions of the supernatural for centuries: foxes of fire whisking their tales, the fighting souls of dead warriors or ancestors dancing around a ceremonial fire.
Mon, 20 Jul 09
Toward An Explanation For Crohn's Disease?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hv0kAvTzRi4/090709095429.htm
Twenty-five percent of Crohn's disease patients have a mutation in what is called the NOD2 gene, but it is not precisely known how this mutation influences the disease. Researchers have now provided new insight into how this might occur.
Mon, 20 Jul 09
Quebec's Blue Gold: Project Aims To Channel Northern Rivers To Generate Power
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_1n84XGOc-8/090716104659.htm
Seasonal storage of floodwaters from three unexploited rivers that flow into James Bay and the channeling of this water to the Ottawa River would provide for the generation of 14 terawatt-hours of hydroelectric energy per year, producing annual revenues of nearly $2 billion, according to a new report.
Mon, 20 Jul 09
Two Reproductive Factors Are Important Predictors Of Death From Ovarian Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/r3VGhX2ZCcw/090709072429.htm
Researchers found that survival among women with ovarian cancer is influenced by age of menarche and total number of lifetime ovulatory cycles.
Mon, 20 Jul 09
Hurricane Ike's Effects On Waterways, Fish Contamination Analyzed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/W5FnkimBY6M/090708110424.htm
A long-term environmental research project may offer important information about the effects of Hurricane Ike on pollution levels and help regulators determine whether existing fish-consumption advisories remain appropriate.
Mon, 20 Jul 09
Academic Disengagement More Common For US Teens Than Chinese
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0jbSztFOCJg/090715074932.htm
A longitudinal study of more than 800 Chinese and American students over 7th and 8th grades has found that academic disengagement is greater for American teens than for Chinese teens. American youths reported being less motivated academically as they made their way through 7th and 8th grades. In contrast, Chinese youths' reports suggested that the value they placed on achievement, their use of constructive learning strategies and the time they spent studying stayed stable.
Sun, 19 Jul 09
Ecologist Brings Century-old Eggs To Life To Study Evolution
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VPiYaC1ou_s/090716203205.htm
Suspending a life in time is a theme that normally finds itself in the pages of science fiction, but now such ideas have become a reality in the annals of science.
Sun, 19 Jul 09
Chemicals Found In Fruit And Vegetables Offer Dementia Hope
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dIKHXZNAYbs/090710092530.htm
A group of chemicals found in many fruits and vegetables, as well as tea, cocoa and red wine, could protect the brain from Alzheimer's disease, a dementia expert reports.
Sun, 19 Jul 09
Toxin Detection As Close As An Inkjet Printer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3IfW0foRGFw/090713100920.htm
A method for printing a toxin-detecting biosensor on paper has been developed. The process involves formulating an ink like the one found in computer printer cartridges but with special additives to make the ink biocompatible.
Sun, 19 Jul 09
Increase In Thyroid Cancer Not Explained By Screening Alone
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Y6erYSQFDI0/090713085604.htm
Studies have reported an increasing incidence of thyroid cancer since 1980. One possible explanation for this trend is increased detection through more widespread and aggressive use of screening tests. Researchers found incidence rates increased for all sizes of tumors, suggesting that screening is not the only explanation for the rise.
Sun, 19 Jul 09
Single Molecules As Electric Conductors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PhiD4g_1EoU/090709072904.htm
Researchers report an important advance in the understanding of electrical conduction through single molecules.
Sun, 19 Jul 09
The Fancier The Cortex, The Smarter The Brain?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5RyujSw4-G0/090717104623.htm
Why are some people smarter than others? A new article describes how certain aspects of brain structure and function help determine how easily we learn new things, and how learning capacity contributes to individual differences in intelligence.
Sun, 19 Jul 09
Why Winning Athletes Are Getting Bigger
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NqeRuAWgAeM/090717090829.htm
A new theory by engineers has showed that not only have Olympic swimmers and sprinters gotten bigger and faster over the past 100 years, but they have grown at a much faster rate than the normal population.
Sun, 19 Jul 09
Stealthy Gene Network Makes Brain Tumors Flourish
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QzRqIgT9P-A/090714165052.htm
The brain tumor afflicting Sen. Edward Kennedy -- a glioblastoma -- is the most aggressive form of brain cancer. But scientists have discovered the tumor's vulnerability. They have identified a network of genes that create the perfect environment to allow the tumor to mushroom to the size of an apple in a just a few months. Researchers also identified a new gene whose level in the tumor predicts how long a glioblastoma patient will survive. The discoveries offer new targets for therapies.
Sun, 19 Jul 09
King Crabs Go Deep To Avoid Hot Water
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RyIJXhoOhsA/090702080354.htm
Researchers have drawn together 200 years' worth of oceanographic knowledge to investigate the distribution of a notorious deep-sea giant - the king crab. The results reveal temperature as a driving force behind the divergence of a major seafloor predator; globally, and over tens of millions of years of Earth's history.
Sun, 19 Jul 09
Case For Preventive Prostate Cancer Treatment Bolstered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-AbsGfHY88U/090707161418.htm
For the last six years, doctors have faced a dilemma about whether to treat men at risk of prostate cancer with the drug finasteride. Now new research appears to show that the drug did not cause those more aggressive forms of prostate cancer but simply made them easier to diagnose. The findings suggest that doctors can be less cautious in use of finasteride.
Sun, 19 Jul 09
Marine Microorganisms: Surviving Mass Extinction By Leading A Double Life
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1zvGf68HM-0/090714124853.htm
Drifting across the world's oceans are a group of unicellular marine microorganisms that are not only a crucial source of food for other marine life -- but their fossils, which are found in abundance, provide scientists with an extraordinary record of climatic change and other major events in the history of the Earth.
Sun, 19 Jul 09
A Bridge Too Far? Stark Warning From History Over Plans For 'Inhabited' London Bridge
http://feeds.sciencedaily.com/~r/sciencedaily/~3/G9ubA96g_xM/090710092526.htm
On July 11, public celebrations will mark the 800th anniversary of the completion of London Bridge. Now, a new study has uncovered a tale of corruption, mismanagement, financial crisis and a property crash that resulted in the downfall of the Old London Bridge -- the capital’s last ‘living bridge’.
Sun, 19 Jul 09
Learning Is Both Social And Computational, Supported By Neural Systems Linking People
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sBplOcU3_IQ/090716141134.htm
Education is on the cusp of a transformation because of recent scientific findings in neuroscience, psychology, and machine learning that are converging to create foundations for a new science of learning.
Sun, 19 Jul 09
Researchers Uncover Genetic Variants Linked To Blood Pressure In African-Americans
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hbHHx_a9_AE/090716201125.htm
Researchers have discovered five genetic variants related to blood pressure in African-Americans -- findings that may provide new clues to treating and preventing hypertension. The effort marks the first time that a relatively new research approach, called a genome-wide association study, has focused on blood pressure and hypertension in an African-American population.
Sun, 19 Jul 09
Moles And Melanoma: Genetic Links To Skin Cancer Found
http://feeds.sciencedaily.com/~r/sciencedaily/~3/84d9qvH7DII/090706113656.htm
Research shows the genetic connection between moles and melanoma -- and why the more moles a person has, the more susceptible they are to the disease. Researchers found a clear link between some genes on chromosomes 9 and 22 and increased risk of melanoma.
Sun, 19 Jul 09
Genetic Factors That Hold Promise For Treatment Of Vascular Diseases
http://feeds.sciencedaily.com/~r/sciencedaily/~3/61OUcCto1t8/090705131812.htm
Researchers have discovered a key switch that makes stem cells turn into the type of muscle cells that reside in the wall of blood vessels. The same switch might be used in the future to limit growth of vascular muscle cells that cause narrowing of arteries leading to heart attacks and strokes, limit formation of blood vessels that feed cancers or make new blood vessels for organs that are not getting enough blood flow.
Sun, 19 Jul 09
Mathematics Taking Guesswork Out Of Plastic Surgery Tissue Transfer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tY3JfXt9p0E/090714124851.htm
Plastic surgeons are turning to mathematics to take the guesswork out of efforts to ensure that live tissue segments that are selected to restore damaged body parts will have enough blood and oxygen to survive the surgical transfer. Mathematicians have shown that they can use differential equations to determine which tissue segments selected for transfer from one part of the body to another location on the same body will receive the level of oxygen required to sustain the tissue.
Sun, 19 Jul 09
Popular Culture May Depict Car Surfing As Cool -- Journal Article Uncovers The Truth About This Potentially Deadly Activity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1O3ZTq_RpM8/090717174015.htm
Why do people engage in stupid and potentially deadly activities, and why do teens in particular have a propensity for this behavior? An intriguing article answers these questions in the context of the reckless "sport" known as car surfing. The article not only analyzes the neurosurgical injuries associated with car surfing, but delves into the cultural and regional trends behind this dangerous recreational activity.
Sat, 18 Jul 09
First Look At The Apollo Landing Sites
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xK3cgBE8rsU/090717150244.htm
The imaging system on board the Lunar Reconnaissance Orbiter recently had its first of many opportunities to photograph five of the six Apollo landing sites, just days before the 40th anniversary of the Apollo 11 mission.
Sat, 18 Jul 09
Large Epidemiologic Study Supports Brain Power Of Fish In Older People
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pG-hK9qBq2E/090717104621.htm
A new study concludes that increased fish consumption is related to lower rates of dementia in elderly living in low- to middle-income countries.
Sat, 18 Jul 09
Reintroduced Chinese Alligators Now Multiplying In The Wild In China
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XdTGl79TVwA/090714124949.htm
The Wildlife Conservation Society has announced that critically endangered alligators in China have a new chance for survival. The reintroduced alligators are now multiplying on their own.
Sat, 18 Jul 09
Timing Is Everything: Growth Factor Keeps Brain Development On Track
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BBuEZsXG9cw/090715131441.htm
Just like a conductor cueing musicians in an orchestra, Fgf10, a member of the fibroblast growth factor (Ffg) family of morphogens, lets brain stem cells know that the moment to get to work has arrived, ensuring that they hit their first developmental milestone on time.
Sat, 18 Jul 09
Touch Typists Could Help Stop Spammers In Their Tracks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QVefVcley84/090715101430.htm
Computer scientists have turned a tedious manual labeling task into an online multi-player game which can help businesses tackle spammers.
Sat, 18 Jul 09
Brain Response To Information About The Future Suggests That Ignorance Isn't Bliss
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OjOaSTlpnCc/090715131433.htm
New research demonstrates that single neurons in the reward center of the brain process not only primitive rewards but also more abstract, cognitive rewards related to the quest for information about the future. The study enhances our understanding of learning and suggests that current theories of reward should be revised to include the effect of information seeking.
Sat, 18 Jul 09
Asian Spice Could Reduce Breast Cancer Risk In Women Exposed To Hormone Replacement Therapy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kF4OZvBFUmE/090713121350.htm
Previous studies have found that post-menopausal women who have taken a combined estrogen and progestin hormone replacement therapy have increased their risk of developing progestin-accelerated breast tumors. Now researchers have found that curcumin, a popular Indian spice derived from the turmeric root, could reduce the cancer risk for women after exposure to hormone replacement therapy.
Sat, 18 Jul 09
Scientists Locate Disease Switches
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XofFJAkVCBI/090717104614.htm
A team of scientists has identified no less than 3,600 molecular switches in the human body. These switches, which regulate protein functions, may prove to be a crucial factor in human aging and the onset and treatment of diseases such as cancer, Alzheimer's disease and Parkinson's disease.
Sat, 18 Jul 09
Apollo 11 Moon Rocks Still Crucial 40 Years Later, Say Researchers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/t6IrlZ1pDNk/090717150254.htm
A lunar geochemist says that there are still many answers to be gleaned from the moon rocks collected by the Apollo 11 astronauts on their historic moonwalk 40 years ago July 20.
Sat, 18 Jul 09
Targeting Specific Proteins To Halt Advanced Metastatic Breast Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/o0XNMA-X-Mo/090716123314.htm
Two specific matrix metalloproteinase (MMP) proteins have been found to contribute to bone metastasis in advanced breast cancer -- lending important new insight into the design of clinically useful small molecule inhibitors.
Sat, 18 Jul 09
Quantum Goes Massive: Profound Effect Of Astrophysics Experiment On Future Quantum Experiments
http://feeds.sciencedaily.com/~r/sciencedaily/~3/O_nSzu0rTW4/090716093526.htm
An astrophysics experiment in America has demonstrated how fundamental research in one subject area can have a profound effect on work in another as the instruments used for the Laser Interferometer Gravitational-Wave Observatory (LIGO) pave the way for quantum experiments on a macroscopic scale.
Sat, 18 Jul 09
Social Reasoning And Brain Development Are Linked In Preschoolers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0L23PKcHXJA/090715074928.htm
New research shows that the way preschool children understand false beliefs can be linked to particular aspects of brain development. This landmark research may aid in understanding developmental disorders such as autism.
Sat, 18 Jul 09
Higher Speed Limits Cost Lives, Researchers Find
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wT4hrR808IY/090716164339.htm
The repeal of the federal speed control law in 1995 has resulted in an increase in road fatalities and injuries, according to researchers.
Sat, 18 Jul 09
Swine Flu Vaccines Being Tested: Vaccine Expected To Be Available In November
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yduM9UHPbzM/090716093516.htm
Researchers are currently comparing 4 potential vaccines for H1N1v, also known as swine flu or Mexican flu. 300 to 400 volunteers will be recruited for these tests. “There is a good chance that a Mexican flu vaccine is available early November”, expects vaccine expert involved with the research.
Sat, 18 Jul 09
Turbulence Responsible For Black Holes' Balancing Act
http://feeds.sciencedaily.com/~r/sciencedaily/~3/761iM0Z66rk/090714124952.htm
New simulations reveal that turbulence created by jets of material ejected from the disks of the Universe's largest black holes is responsible for halting star formation.
Sat, 18 Jul 09
Discovery Of New Transmission Patterns May Help Prevent Rotavirus Epidemics
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XHJDz-Bbdwo/090716141217.htm
New vaccines have the potential to prevent or temper epidemics of the childhood diarrhea-causing disease rotavirus, protect the unvaccinated and raise the age at which the infection first appears in children, researchers report.
Sat, 18 Jul 09
New Isotope Cluster Could Lead To Better Understanding Of Atmospheric Carbon Dioxide
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1yfnhAUQtUw/090714124958.htm
Scientists have discovered an unexpected concentration of a certain isotopic molecule in parts of the stratosphere that could have implications for understanding the carbon cycle and its response to climate change.
Sat, 18 Jul 09
Children Can Outgrow Chronic Daily Headache
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sdPclQV7_wg/090715174925.htm
Most children who suffer from chronic daily headache may outgrow the disabling condition, according to new research. Nearly 1.5 percent of middle school children are affected by chronic daily headache, which includes chronic migraines and tension-type headaches.
Sat, 18 Jul 09
Delinquent Behavior Among Boys 'Contagious,' Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-5DFAynMBvM/090716113301.htm
Impulsive boys with inadequate supervision, poor families and deviant friends are more likely to commit criminal acts that land them in juvenile court, according to a new study. The most surprising finding from the 20-year study was how help provided by the juvenile justice system substantially increased the risk of the boys engaging in criminal activities during early adulthood.
Sat, 18 Jul 09
Obesity Raises Risk Of Complications In Pregnancy, Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HHvGyKfsWBQ/090716113245.htm
Expectant mothers who are obese are much more likely to suffer from minor complications such as heart burn and chest infections during pregnancy, a study suggests. Research found that obese mothers-to-be were nearly 10 times more likely to suffer from chest infections, and more than twice as likely to suffer from headaches and heartburn, compared with pregnant women of a healthy weight.
Sat, 18 Jul 09
Water Webs: Connecting Spiders, Residents In The Southwest
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WaQzSDgVZ54/090629165112.htm
If you are a cricket and it is a dry season on the San Pedro River in Arizona, on your nighttime ramblings to eat leaves, you are more likely to be ambushed by thirsty wolf spiders. A potential horror story for any cricket. However, it is also a tale of water limitation that looks beyond how most ecosystem studies are considered.
Sat, 18 Jul 09
Biomarker Of Breathing Control Abnormality Associated With Hypertension And Stroke
http://feeds.sciencedaily.com/~r/sciencedaily/~3/T0qUMWdXa3w/090701082706.htm
Scientists have identified a distinct ECG-derived spectrographic phenotype, designated as narrow-band elevated low frequency coupling (e-LFCNB), that is associated with prevalent hypertension, stroke, greater severity of sleep disordered breathing and sleep fragmentation in patients suffering from obstructive sleep apnea.
Sat, 18 Jul 09
Researchers Help Set Security Standards For The Internet
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yTr1Sq5GV9w/090708110426.htm
Secure Internet activity requires being able to prove who you are, and experts agree that the traditional approach of passwords is not always effective. PKI and public key cryptography solve these problems, and a new system is now in the pipeline with the Internet Engineering Task Force to become the universal way to easily implement PKI-enhanced computing security.
Sat, 18 Jul 09
Foster Care May Boost Brain Activity Of Institutionalized Children
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1k-2oBR4o3Q/090715074922.htm
A longitudinal study of 200 Romanian children between the ages of 5 months and 42 months shows the effects of institutionalization on brain and behavioral development. Compared with children who grew up in families, children raised in institutions showed a pattern of reduced brain activity when they looked at pictures of a caregiver's face that alternated with pictures of a stranger's face. Children who were placed in high-quality foster care showed the beginnings of normalized brain activity when processing faces.
Sat, 18 Jul 09
Solar Cycle Linked To Global Climate
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MRqXdz3Auc4/090716113358.htm
Establishing a key link between the solar cycle and global climate, new research shows that maximum solar activity and its aftermath have impacts on Earth that resemble La Niña and El Niño events in the tropical Pacific Ocean.
Sat, 18 Jul 09
Gene Regulates Immune Cells' Ability To Harm The Body
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fPLIJ6QEHNo/090716201132.htm
A recently identified gene allows immune cells to start the self-destructive processes thought to underlie autoimmune diseases such as multiple sclerosis and rheumatoid arthritis, researchers have found.
Sat, 18 Jul 09
Conversing Helps Language Development More Than Reading Alone
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ONHu1WI76M8/090629132204.htm
A new study shows adult-child conversations have a more significant impact on language development than exposing children to language through monologic reading alone.
Sat, 18 Jul 09
Why Neural Stem Cells Divide And Differentiate
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KZwKCqVGTcU/090630091033.htm
Neural stem cells represent the cellular backup of our brain. These cells are capable of self-renewal to form new stem cells or differentiate into neurons, astrocytes or oligodendrocytes. The receptors of the Notch family play a significant role in this process. So far, only stimulating extracellular ligands of Notch receptors had been described. Biochemists now describe a long time assumed but not yet identified soluble Notch inhibitor.
Sat, 18 Jul 09
Human-computer Interaction: Beyond – Way Beyond – WIMP Interfaces
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3ARaHx2KdpI/090708083238.htm
Human-computer interaction is undergoing a revolution, entering a multimodal era that goes beyond, way beyond, the WIMP (Windows-Icons-Menus-Pointers) paradigm. Now researchers have developed a platform to speed up that revolution.
Sat, 18 Jul 09
In Adolescence, Girls React Differently Than Boys To Peers' Judgments
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-22c6dzCbug/090715074920.htm
A new study shows what happens in the brains of preteens and teens at a time of significant change in social behavior. Using brain scan technology, researchers found that in older girls (as compared to younger girls), brain regions associated with social rewards and motivation responded differently when they thought about being judged by their peers. These differences were not evident between younger and older boys.
Sat, 18 Jul 09
Genetic Source Of Muscular Dystrophy Neutralized: Possible Cure?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yJO0MzyHFx8/090716141127.htm
Researchers have found a way to block the genetic flaw at the heart of a common form of muscular dystrophy. The results of the study could pave the way for new therapies that essentially reverse the symptoms of the disease.
Sat, 18 Jul 09
Genetic Trigger For Disease-fighting Antibodies Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1Ll_UCiAYC4/090716141131.htm
Scientists have identified the specific gene which triggers the body to produce disease-fighting antibodies -- a seminal finding that clarifies the exact molecular steps taken by the body to mount an antibody defense against viruses and other pathogens. The finding has major implications for the development of new and more effective vaccines.
Sat, 18 Jul 09
Human-like Vision Lets Robots Navigate Naturally
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RMXAHL9rtbo/090630075616.htm
A robotic vision system that mimics key visual functions of the human brain promises to let robots maneuver quickly and safely through cluttered environments, and to help guide the visually impaired.
Sat, 18 Jul 09
Infants Should Be Screened For Hip Trouble
http://feeds.sciencedaily.com/~r/sciencedaily/~3/maqHYZpQ_ns/090701082921.htm
Developmental hip dysplasia is the most common congenital defect in newborns. The condition occurs when a hip joint is shallow, unstable or when the joint is dislocated. Infants with the condition are often at risk of developing arthritis of the hip as a young adult. A new study finds that screening all infants for hip dysplasia can significantly decrease their chance of developing early arthritis.
Sat, 18 Jul 09
Ocean Current Shutdown May Be Gradual, Not Sudden
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hvafr6mnn50/090716141142.htm
The findings of a major new study are consistent with gradual changes of current systems in the North Atlantic Ocean, rather than a more sudden shutdown that could lead to rapid climate changes in Europe and elsewhere.
Sat, 18 Jul 09
Stress And Depression Worsen Childhood Asthma, Researchers Show
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ppHm1MsgYFQ/090716113352.htm
Young people with asthma have nearly twice the incidence of depression compared to their peers without asthma, and studies have shown that depression is associated with increased asthma symptoms and, in some cases, death.
Fri, 17 Jul 09
By Manipulating Oxygen, Scientists Coax Bacteria Into Never-Before-Seen Solitary Wave
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VOb40y6SRgI/090716134903.htm
Bacteria know that they are too small to make an impact individually. So they wait, they multiply, and then they engage in behaviors that are only successful when all cells participate in unison. There are hundreds of behaviors that bacteria carry out in such communities. Now researchers have discovered one that has never been observed or described before in a living system.
Fri, 17 Jul 09
Set Of Genes Contributes To Stress; Possible Drug-Taking Behavior Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9wYFqbAkRkU/090713222216.htm
A researcher has found a set of genes that modulates stress responses that could cause some people to take drugs, specifically alcohol consumption.
Fri, 17 Jul 09
Hydrogen Technology Steams Ahead
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wFaZ9kdJZzI/090708073944.htm
Could the cars and laptops of the future be fueled by old chip fat? A group of engineers believe so, and are developing an energy efficient, environmentally-friendly hydrogen production system. The system enables hydrogen to be extracted from waste materials, such as vegetable oil and the glycerol by-product of bio-diesel. The aim is to create the high purity hydrogen-based fuel necessary not only for large-scale power production, but also for smaller portable fuel cells.
Fri, 17 Jul 09
Cystic Fibrosis Treatments May Have Unseen Long-term Benefits
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8GqjAvijJ-0/090716113243.htm
Cystic fibrosis medicines that help to break down mucus in the lungs may carry an unexpected long-term benefit, a study suggests. The treatments not only help breathing in the short term -- they may also make lung infections develop to be less harmful in the long run, research shows.
Fri, 17 Jul 09
Solar Power: New SunCatcher Power System Ready For Commercial Production In 2010
http://feeds.sciencedaily.com/~r/sciencedaily/~3/U8ycgrSfCNc/090709205950.htm
Four newly designed highly efficient solar power collection dishes will be used in commercial-scale deployments beginning in 2010.
Fri, 17 Jul 09
Mathematical Model Shows Why Defeating Insurgent Groups Like Taliban Is So Difficult
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Lph-lrLkIX4/090716123316.htm
Insurgent groups like the Taliban can only be effectively engaged with timely and accurate military intelligence, and even good intelligence may only succeed in containing the insurgency, not defeating it, according to a new study.
Fri, 17 Jul 09
Evolutionary Event Underlying Origin Of Dachshunds, Dogs With Short Legs, Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2z6QSCAz12g/090716141146.htm
A single evolutionary event appears to explain the short, curved legs that characterize all of today's dachshunds, corgis, basset hounds and at least 16 other breeds of dogs, researchers report. In addition to what it reveals about short-legged dogs, the unexpected discovery provides new clues about how physical differences may arise within species and suggests new approaches to understanding a form of human dwarfism.
Fri, 17 Jul 09
Baking Soda: For Cooking, Cleaning, And Kidney Health?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YzpLFiuuBPQ/090716201123.htm
A daily dose of sodium bicarbonate -- baking soda, already used for baking, cleaning, acid indigestion, sunburn and more -- slows the decline of kidney function in some patients with advanced chronic kidney disease, reports an upcoming study.
Fri, 17 Jul 09
Arctic Climate Under Greenhouse Conditions In The Late Cretaceous
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_eah8OO-4Go/090709095422.htm
New evidence for ice-free summers with intermittent winter sea ice in the Arctic Ocean during the Late Cretaceous -- a period of greenhouse conditions -- gives a glimpse of how the Arctic is likely to respond to future global warming.
Fri, 17 Jul 09
Successful New Treatment For Hodgkin's Lymphoma, Reduces Long-term Risks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Z5s22aVuYKc/090713160521.htm
A new chemotherapy regimen for pediatric Hodgkin's lymphoma patients has been identified. The new treatment enhances efficacy through dose-dense drug delivery while simultaneously reducing the long-term risks presented by high cumulative dose chemotherapy.
Fri, 17 Jul 09
Advanced Mathematics In Mother-child Relationships And Climate Change
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1dxWrLZkcV0/090713211625.htm
The hearts of pregnant women and their unborn children sometimes beat in synchrony. This interaction is significantly influenced by the mother’s breathing, researchers report. The mathematical approach to identify the synchronisation epochs could be applied to detect complications early in pregnancy. It could equally be used for the analysis of complex patterns in the climate system.
Fri, 17 Jul 09
Our Metallic Reflection: Considering Future Human-android Interactions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0ASCa_OP164/090716164349.htm
Everyday human interaction is not what you would call perfect, so what if there was a third party added to the mix -- like a metallic version of us? In a new article, a psychologist and computer scientist investigate what human-android interactions may be like 50 years into the future.
Fri, 17 Jul 09
Male Sex Chromosome Losing Genes By Rapid Evolution, Study Reveals
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-iEaQ-nJyXI/090716201127.htm
Scientists long have suspected that the sex chromosome that only males carry, the Y chromosome, is deteriorating. But until now, no one has understood the evolutionary processes that control this chromosome's demise. Now, scientists have discovered that the Y chromosome is evolving at a rapid rate, resulting in a dramatic loss of genes that eventually could lead to the chromosome's complete disappearance.
Fri, 17 Jul 09
Novel Drug Discovery Tool Could Identify Promising New Therapies For Parkinson's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ykE8rjAioYE/090713131600.htm
Researchers have turned simple baker's yeast into a virtual army of medicinal chemists capable of rapidly searching for drugs to treat Parkinson's disease.
Fri, 17 Jul 09
Handle With Care: Telomeres Resemble DNA Fragile Sites
http://feeds.sciencedaily.com/~r/sciencedaily/~3/L49D_RA4Sng/090710092030.htm
Although telomeres are fragile, they don't have to be handled with care. Researchers now show that what keeps our fragile telomeres from falling apart is a protein known as TRF1 that ensures the smooth progression of DNA replication to the end of a chromosome. The work not only shows how telomeres help chromosomes protect their vulnerable ends but also reveals how the genome is made more stable by them.
Fri, 17 Jul 09
Dynamic Molecular Mechanism To Keep Brain Activity Stable
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uvrLzRQ0g6g/090713100916.htm
In the brain, many types of synaptic proteins are spatio-temporally regulated to maintain synaptic activity at a constant level. Here, scientists found that two types of palmitoylating enzymes finely-tune the location and function of a major synaptic protein, PSD-95, in different ways. They also found that this mechanism contributes to keeping synaptic activity stable when synaptic activity dynamically changes.
Fri, 17 Jul 09
105-day Mars Simulation Full of Experiments and Realistic Mission Scenarios
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OwUREfoIoa0/090713201625.htm
For 105 days, a six-man crew called an isolation chamber in Moscow, their home. The crew simulated a Mars mission full of experiments and realistic mission scenarios. US participation consisted of three research teams with experiments evaluating solutions to conditions that impact work performance: lighting interventions to counter shift-work sleep loss, tests measuring the impact of stress and fatigue on performance, and assessing interactions between crew members and mission control.
Fri, 17 Jul 09
Active Video Games A Good Alternative To Moderate Exercise For Kids, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4ibaAETild0/090716123318.htm
Scientists have found that playing active video games can be as effective for children as moderate exercise.
Fri, 17 Jul 09
Ancient Microorganisms Helped Build 3.4-billion-year-old Stromatolite Rock Structures
http://feeds.sciencedaily.com/~r/sciencedaily/~3/shDo8o3-URA/090716141221.htm
Stromatolites are dome- or column-like sedimentary rock structures that are formed in shallow water, layer by layer, over long periods of geologic time. Now, researchers have provided evidence that some of the most ancient stromatolites on our planet were built with the help of communities of equally ancient microorganisms.
Fri, 17 Jul 09
Study Using Structural MRI May Help Accurately Diagnose Dementia Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4LWikMEVysk/090711085224.htm
A new study may help physicians differentially diagnose three common neurodegenerative disorders in the future.
Fri, 17 Jul 09
Superconductivity: Which One Of These Is Not Like The Other?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bPleRqKmkIs/090713085014.htm
Superconductivity appears to rely on very different mechanisms in two varieties of iron-based superconductors.
Fri, 17 Jul 09
Previous Exercise Helps Stroke Patients Recover Faster, Researchers Find
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PHMtSQCtnYY/090716164342.htm
A person who has exercised regularly prior to the onset of a stroke appears to recover more quickly, say researchers in a new study.
Fri, 17 Jul 09
Fluorescent Probes May Permit Monitoring Of Chemotherapy Effectiveness
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XalUsVpEcek/090713131547.htm
Going out like a brilliant flame is one way to get attention. If physicians could watch tumor cells committing a form of programmed suicide called apoptosis, a desired effect of workhorse cancer treatments such as chemotherapy and radiotherapy, they could more quickly pick the most effective treatment. Now scientists have found a way to do just that, by lighting up cells as they die.
Fri, 17 Jul 09
Study Finds Links Between Obesity And Adolescents' Social Networks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ny2qxrKTvP8/090716164351.htm
Researchers in California have found that overweight youth were twice as likely to have overweight friends.
Fri, 17 Jul 09
Eagle Nebula: An Eagle Of Cosmic Proportions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PUC7AwsELPk/090716093520.htm
A new and stunning image of the sky around the Eagle Nebula, a stellar nursery where infant star clusters carve out monster columns of dust and gas has been released.
Fri, 17 Jul 09
How Staph Infections Alter Immune System
http://feeds.sciencedaily.com/~r/sciencedaily/~3/G7LMwE7Q-Js/090714085816.htm
Infectious disease specialists have mapped the gene profiles of children with severe Staphylococcus aureus infections, providing crucial insight into how the human immune system is programmed to respond to this pathogen and opening new doors for improved therapeutic interventions.
Fri, 17 Jul 09
New Method To Encapsulate Substances In Nanospheres
http://feeds.sciencedaily.com/~r/sciencedaily/~3/u867pHXst4E/090707154418.htm
Scientists have developed and patented a method which obtains minute organometallic capsules ranging from micrometric to nanometric sizes. These will encapsulate substances in nanospheres containing intrinsic metal properties, such as magnetism, fluorescence or conductivity, which could be useful when applied to radiodiagnostics, electronics or sensors.
Fri, 17 Jul 09
Mixed Results From Trials Of DHA In Alzheimer's Disease And Age-related Cognitive Decline
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tK4yLeByS0Y/090712145222.htm
Results from two large studies using DHA, an omega 3 fatty acid show no evidence for benefit in the studied population. The Martek trial showed a positive result on one test of memory and learning, but that study was in healthy older adults, not people with Alzheimer's or another dementia. Mixed results emphasize the need for earlier detection and intervention.
Fri, 17 Jul 09
Arctic Sea Ice Images Derived From Classified Data Should Be Made Public, According To A New Report
http://feeds.sciencedaily.com/~r/sciencedaily/~3/b-f4aPULRRY/090715112033.htm
Hundreds of images derived from classified data that could be used to better understand rapid loss and transformation of Arctic sea ice should be immediately released and disseminated to the scientific research community, says a new report.
Fri, 17 Jul 09
Children Of Undocumented Parents Of Mexican Origin May Be At Higher Developmental Risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yyZ_mR04pnc/090713124716.htm
A new study examines parent's concerns about development, learning and behavior for young children of Mexican origin, and identifies whether these concerns differed by the families' citizenship or documentation status.
Fri, 17 Jul 09
Classifying 'Clicks' In African Languages To Clear Up 100-year-old Mystery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_Hets5XLsCo/090715131551.htm
A new way to classify sounds in some human languages may solve a problem that has plagued linguists for nearly 100 years -- how to accurately describe click sounds distinct to certain African languages.
Fri, 17 Jul 09
Flu Mortality Formula Is Potentially Misleading, Say Scientists
http://feeds.sciencedaily.com/~r/sciencedaily/~3/q6c5PFVnpGI/090714191848.htm
A standard calculation used in forecasting potential numbers of deaths during the swine flu pandemic risks misleading health-care planners by being open to both over- and under-estimation of the true figures, according to experts.
Fri, 17 Jul 09
Hormone Clue To Root Growth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iAe4hB0Cc64/090707111705.htm
Plant roots provide the crops we eat with water, nutrients and anchorage. Understanding how roots grow and how hormones control that growth is crucial to improving crop yields, necessary to address food security and produce better biofuels. Scientists have now shed light on how a plant hormone is crucial in controlling the growth of plant roots.
Fri, 17 Jul 09
Radiation Dose, Cancer Risk From Coronary Artery Calcium Screening Estimated
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hHVOqeL-3ew/090713170655.htm
A study based on computer modeling of radiation risk suggests that widespread screening for the buildup of calcium in the arteries using computed tomography scans would lead to an estimated 42 additional radiation-induced cancer cases per 100,000 men and 62 cases per 100,000 women, according to a new report.
Fri, 17 Jul 09
Wood Stoves -- A Viable Home Heat Source?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WET69cB2_AA/090714143902.htm
In Canada and the United States, wood burning stoves have been reevaluated as a potentially viable option for home heating. The environmental sustainability of wood stove use is dependent upon the consumption of wood from sustainably managed woodlots, as the carbon released is reused as the next generation of trees grows.
Fri, 17 Jul 09
Who Am I? Adolescents' Replies Depend On Others
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8dIrQPv0CFQ/090715074926.htm
Ask middle-school students if they are popular or make friends easily, they likely will depend on social comparisons with their peers for an answer. Such reliance on the perceived opinions of others, or reflected self-appraisals, has long been assumed, but new evidence supporting this claim has now been found in the teen brain.
Fri, 17 Jul 09
Blind Can Take Wheel With Newly Designed Vehicle
http://feeds.sciencedaily.com/~r/sciencedaily/~3/e2oZgPRfLDA/090715160813.htm
A retrofitted four-wheel dirt buggy uses laser range finders, an instant voice command interface and a host of other innovative, cutting-edge technology to guide blind drivers as they steer, brake and accelerate.
Fri, 17 Jul 09
Asperger Syndrome, Autism, And Empathy: Study Links 27 Genes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mM760e9-zoo/090715101427.htm
Scientists have identified 27 genes that are associated with a number of traits, including Asperger syndrome, autism, and empathy.
Fri, 17 Jul 09
Could Cannon Balls From The Early 19th Century Sink Warships?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TCVjlmyoewA/090715101505.htm
A new experiment has solved the riddle that has been puzzling researchers ever since they first observed the thick wooden sides of the sunken ship opposite the shore of Acre: could cannon fire have penetrated the hull?
Fri, 17 Jul 09
Why African-Americans Are At Greater Risk Of Hypertension And Kidney Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/I9leIszy4rQ/090713170714.htm
Physician-scientists believe that a heightened level a certain growth factor in the blood may explain why blacks have a greater prevalence of hypertension and kidney disease compared to whites. Results from a new study are the first to show that an elevated level of a protein, called transforming growth factor B1, raises the risk of hypertension and renal disease in humans.
Fri, 17 Jul 09
Optical Chip Detects Blood Molecules
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oZV5jv7se-s/090715095241.htm
A portable 'lab on a chip' that can identify target molecules in blood samples has been created. It is being used to measure fertility hormones and detect the genes associated with certain types of cancer. Much of modern medicine relies on the testing of blood and other samples for key molecules that confirm the presence of a specific disease or other disorder. Samples need to be sent to a laboratory and it may be several days before the result comes back. Wouldn't it be better if the result were available within a few minutes of the sample being taken, while the patient is still there with the doctor?
Fri, 17 Jul 09
Alzheimer's Risk: Would You Want To Know?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/L4FsEBYvYVI/090715174930.htm
Researchers have shown that disclosing genetic risk information to adult children of patients with Alzheimer's disease who request this information does not result in significant short-term psychological distress.
Fri, 17 Jul 09
DNA Not The Same In Every Cell Of Body: Major Genetic Differences Between Blood And Tissue Cells Revealed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ozSIVVPa868/090715131449.htm
New research calls into question one of the most basic assumptions of human genetics: that when it comes to DNA, every cell in the body is essentially identical to every other cell. This discovery may undercut the rationale behind numerous large-scale genetic studies conducted over the last 15 years.
Fri, 17 Jul 09
Broken Bones Heal Faster With Drugs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/l0MM0GDWluU/090716093522.htm
Bone fractures might heal faster if the patient is injected with medications. This is the outcome of a unique study of 102 women with wrist fractures. This is the first study that shows that fracture healing in humans can be accelerated with medication.
Fri, 17 Jul 09
Fighting Drug-resistant Flu Viruses
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HsnJPjxvYa0/090715101438.htm
Amid reports that swine flu viruses are developing the ability to shrug off existing antiviral drugs, scientists are reporting a first-of-its kind discovery that could foster a new genre of antivirals that sidestep resistance problems.
Fri, 17 Jul 09
Higher Education Level, Greater Disability Associated With Treatment Timing In Parkinson's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Kvvqt57RBMo/090713170705.htm
Individuals who have higher levels of education and who are more impaired by Parkinson's disease appear to require treatment for their symptoms earlier than do other patients.
Fri, 17 Jul 09
Linking Quantum Physics With Classical Physics: Basis Of Einstein's First Approximation In The Theory Of Relativity Investigated
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JWPm3BQmXQU/090715112031.htm
In his discussion of accelerated motion on page 60 of "The Meaning of Relativity," Albert Einstein made an approximation that allowed him to develop the theory of relativity further. Einstein apparently never had the opportunity to check his original approximation. Now, a physicist has uncovered some clues about the basis of Einstein's theories and presented a more general approximation, which may better link quantum physics with classical physics.
Fri, 17 Jul 09
Childhood Adversity May Affect Processing In The Brain's Reward Pathways
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NSRPCCktBRA/090715174934.htm
Childhood adversity is associated diminished activation in the regions the brain that anticipate reward, according to a new study. Using fMRI, researchers examined the brain activity of individuals who had experienced childhood abuse that met state guidelines for maltreatment, and found weaker responses to reward-predicting cues in left hemisphere regions of the basal ganglia.
Thu, 16 Jul 09
Skull Of Crocodile 100 Million Years Old Unearthed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dimW3CDn2Gc/090715102305.htm
Paleontologists have made the most important discovery to date at the Arlington Archosaur Site, a prolific fossil site in Texas. The disassembled skull of a crocodile with two-and-a-half-inch-long teeth that lived nearly 100 million years ago has been unearthed.
Thu, 16 Jul 09
Trojan Horse For Ovarian Cancer: Nanoparticles Turn Immune System Soldiers Against Tumor Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FpmKCW5hSY0/090715160821.htm
Immunologists have devised a Trojan horse to help overcome ovarian cancer, unleashing a surprise killer in the surroundings of a hard-to-treat tumor.
Thu, 16 Jul 09
Microscopic 'Beads' Could Help Create 'Designer' Immune Cells That Ignore Transplanted Organs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4C33CPHrmLs/090706112908.htm
The future of organ transplantation could include microscopic beads that create "designer" immune cells to help patients tolerate their new organ, researchers say.
Thu, 16 Jul 09
Entirely New Way To Study Brain Function Developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pGxNuNqWa6U/090715131430.htm
Scientists have devised a chemical technique that promises to allow neuroscientists to discover the function of any population of neurons in an animal brain, and provide clues to treating and preventing brain disease.
Thu, 16 Jul 09
Wastewater Used To Map Illicit Drug Use
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eDPLJ5K5Xuk/090715160823.htm
A team of researchers has mapped patterns of illicit drug use across the state of Oregon using a method of sampling municipal wastewater before it is treated. Their findings provide a one-day snapshot of drug excretion that can be used to better understand patterns of drug use in multiple municipalities over time.
Thu, 16 Jul 09
Patients With Depression Frequently Suffer From Medically Unexplained Pain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8xnYfOmC-Bc/090715152042.htm
Pain symptoms that cannot be attributed, or at least not fully attributed, to an organic origin are more frequently and more severely experienced by patients with depression than by those without.
Thu, 16 Jul 09
Capturing Carbon Dioxide In Tiny Bowls: Global Warming Fix From Microbes?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1T2YW-V_73w/090715101441.htm
The accidental discovery of a bowl-shaped molecule that pulls carbon dioxide out of the air suggests exciting new possibilities for dealing with global warming, including genetically engineering microbes to manufacture those carbon dioxide "catchers."
Thu, 16 Jul 09
Vitamin D, Curcumin May Help Clear Amyloid Plaques Found In Alzheimer's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BBl0V9yuLlw/090715131558.htm
Scientists have found that a form of vitamin D, together with a chemical found in turmeric spice called curcumin, may help stimulate the immune system to clear the brain of amyloid beta, which forms the plaques considered the hallmark of Alzheimer's disease.
Thu, 16 Jul 09
Coral Reefs Exposed To Imminent Destruction From Climate Change
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RMLMYfyVBDg/090706141006.htm
Leading ocean scientists and climate change experts agreed on a new level of atmospheric carbon dioxide that would need to be achieved to ensure the survival of coral reefs.
Thu, 16 Jul 09
Circulating Blood Cells Are Important Predictors Of Cancer Spread In Children
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MUAjQhwySm0/090715074936.htm
Endothelial progenitor cells may play a role in the start and progression of metastatic disease in children with cancer, according to study results published in Clinical Cancer Research, a journal of the American Association for Cancer Research.
Thu, 16 Jul 09
Surprising New Insights Into The Repair Strategies Of DNA
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TmWMQYbRRdE/090715131606.htm
A microscopic single-celled organism, adapted to survive in some of the harshest environments on earth, could help scientists gain a better understanding of how cancer cells behave.
Thu, 16 Jul 09
Parts Of Brain Involved In Social Cognition May Be In Place By Age Six
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BoeQUNx3EL4/090715074930.htm
By scanning the brains of children ages 6 to 11 as they listened to children's stories, researchers have for the first time investigated brain regions associated with social cognition in human children. Researchers found that one of the brain regions, the right tempero-parietal junction, appeared to change its function between the ages of 6 and 11. This research has implications for the study of atypical social development, as happens in autism.
Thu, 16 Jul 09
Primitive Asteroids In Main Asteroid Belt May Have Formed Far From The Sun
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PIXbGcEXJIs/090715131556.htm
Many of the objects found today in the asteroid belt located between the orbits of Mars and Jupiter may have formed in the outermost reaches of the solar system, according to astronomers.
Thu, 16 Jul 09
First Molecular Steps To Childhood Leukemia Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/V4GCmBq-tfs/090715143836.htm
Scientists have identified how a chromosomal abnormality known to be associated with acute lymphoblastic leukemia -- the most common cancer in children -- initiates the disease process. Chromosome reshuffling affecting blood stem cells leads to years-later cancer development.
Thu, 16 Jul 09
Chemical Changes In Cells Tracked As They Endure Extreme Conditions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-m8xFzbcHew/090707142140.htm
How do some bacteria survive conditions that should kill them? In groundbreaking research, scientists have used the Advanced Light Source to track chemical changes in individual cells as they adapt to extreme environments.
Thu, 16 Jul 09
Breastfeeding: Chemical Concentrations Do Not Decrease During Lactation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wjNxnmY-1-U/090714214505.htm
A new study suggests that lipid-adjusted concentrations of polybrominated diphenyl ethers, polychlorinated biphenyls, polychlorinated dibenzo-p-dioxins and furans and organochlorine pesticides in women's blood serum and milk do not decrease during lactation as previously thought. This new insight should improve researchers' ability to assess infant exposures to environmental chemicals via breastfeeding.
Thu, 16 Jul 09
New Seasonal Hurricane Forecasting Model Created
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wAm6TmyKZJY/090715131553.htm
Scientists have developed a new computer model that they hope will predict with unprecedented accuracy how many hurricanes will occur in a given season.
Thu, 16 Jul 09
Instead Of Counting Blessings, Count Money To Feel Good
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yyVhU6POvE4/090715131549.htm
When we are feeling blue we are told to count our blessings, but according to a new study counting our money might be a more useful activity.
Thu, 16 Jul 09
Genomes Of Parasitic Flatworms Decoded
http://feeds.sciencedaily.com/~r/sciencedaily/~3/apLTFXYIu_s/090715131439.htm
Scientists have determined the complete genetic sequences of two species of parasitic flatworms that cause schistosomiasis, a debilitating condition also known as snail fever. Schistosoma mansoni and Schistosoma japonicum are the first sequenced genomes of any organism in the large group called Lophotrochozoa, which includes other free-living and parasitic flatworms as well as segmented roundworms, such as the earthworm.
Thu, 16 Jul 09
Osteoporosis Drug May Save Lives By Strengthening Immune System
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YhYztCJbDHw/090715143838.htm
An osteoporosis drug proven to save lives after hip fractures may do so by strengthening the body's immune system, according to geriatrics researchers.
Thu, 16 Jul 09
Kenya's National Parks Not Free From Wildlife Declines
http://feeds.sciencedaily.com/~r/sciencedaily/~3/G7BnOV-yOts/090707201216.htm
Long-term declines of elephants, giraffe, impala and other animals in Kenya are occurring at the same rates within the country's national parks as outside of these protected areas, according to a study released this week.
Thu, 16 Jul 09
Focusing HIV Treatment Helps Control Concurrent Hepatitis B Infection
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1FbS6t_7NSQ/090715074949.htm
Prolonged use of highly active antiretroviral therapy to treat people infected with both HIV and hepatitis B helps to better control the hepatitis B infection and could delay or prevent liver complications, according to a new study.
Thu, 16 Jul 09
Conquering The Traveling Salesman Problem
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VIRCBEM4AMU/090715075136.htm
A new algorithm which could provide a solution to the age old Traveling Salesman Problem (TSP) has been improved by a student.
Thu, 16 Jul 09
Ask Permission To Use Newborn Data, Parents Say
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nwhD3_xTQgY/090715112037.htm
More than three-quarters of parents would be willing to allow the use of their children's newborn screening samples for research, a new survey shows. But more than half would be unwilling to permit use if their permission was not obtained beforehand. The survey sheds light on the emerging issue of how to square parents' concerns about privacy with medical researchers' desire to use the samples.
Thu, 16 Jul 09
Not Only Dogs, But Deer, Monkeys And Birds Bark To Deal With Conflict
http://feeds.sciencedaily.com/~r/sciencedaily/~3/W_OCy_KG5uc/090714210137.htm
Biologically speaking, many animals besides dogs bark, according to evolutionary biologists, but domestic dogs vocalize in this way much more than birds, deer, monkeys and other wild animals that use barks. The reason is related to dogs' 10,000-year history of hanging around human food refuse dumps, she suggests.
Thu, 16 Jul 09
Scientists Characterizes New Syndrome Of Allergy, Apraxia, Malabsorption
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ibq4Oj3Ciag/090714104002.htm
Scientists have revealed a new syndrome in children that presents with a combination of allergy, apraxia and malabsorption.
Thu, 16 Jul 09
Active Ingredient In Cannabis Eliminates Morphine Dependence In Rats
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DB_K55rcYQM/090706090440.htm
Injections of THC, the active principle of cannabis, eliminate dependence on opiates (morphine, heroin) in rats deprived of their mothers at birth. The findings could lead to therapeutic alternatives to existing substitution treatments.
Thu, 16 Jul 09
Atrial Fibrillation Linked To Increased Hospitalization In Heart Failure Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7UM1LNckC8A/090706134054.htm
Patients with atrial fibrillation, common in those with advanced chronic heart failure, have an increased risk of hospitalization due to heart failure, according to new research. The findings also suggest that atrial fibrillation is not associated with an increased risk of death in heart failure patients, contradicting previous assumptions.
Thu, 16 Jul 09
New Method May Help Allocate Carbon Emissions Responsibility Among Nations
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Dv3l_O2jVlo/090706171505.htm
Just months before world leaders are scheduled to meet to devise a new international treaty on climate change, scientists have developed a new way of dividing responsibility for carbon emissions among countries. The approach is so fair, according to its creators, that they are hoping it will win the support of both developed and developing nations, whose leaders have been at odds for years over perceived inequalities in previous proposals.
Thu, 16 Jul 09
Cosmetic Surgery Appeals To Men, Women With Appearance-based Rejection Sensitivity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2cdkqSON1XI/090630132011.htm
Researchers have found that men and women who feel sensitive to rejection based on their physical appearance are more likely to express interest in having cosmetic surgery than those who are less sensitive to appearance-based rejection. This effect is particularly true when people recall negative comments about their physical appearance.
Thu, 16 Jul 09
Brain Emotion Circuit Sparks As Teen Girls Size Up Peers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mNluTNjJIm8/090715074938.htm
What is going on in teenagers' brains as their drive for peer approval begins to eclipse their family affiliations? Brain scans of teens sizing each other up reveal an emotion circuit activating more in girls as they grow older, but not in boys. The study shows how emotion circuitry diverges in the male and female brain during a developmental stage in which girls are at increased risk for developing mood and anxiety disorders.
Thu, 16 Jul 09
White Matter Changes May Predict Dementia Risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_X0NAc7OgA8/090713170653.htm
Elderly people with no memory or thinking problems are more likely to later develop thinking problems if they have a growing amount of "brain rust," or small areas of brain damage, according to a new study.
Thu, 16 Jul 09
Bee Colony Collapse Disorder: New Bait Lures Varroa Mite To Its Doom
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kHlzerridSs/090705145109.htm
Varroa mites, prime suspect in bee colony collapse disorder, could literally be walking into a trap --- thanks to a newly developed attractant.
Thu, 16 Jul 09
Two Dietary Oils, Two Sets Of Benefits For Older Women With Diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/G18D3FCWf-g/090707111707.htm
A study comparing how two common dietary oil supplements affect body composition suggests that both oils, by themselves, can lower body fat in obese postmenopausal women with Type 2 diabetes. The two oils compared were safflower oil, a common cooking oil, and conjugated linoleic acid, a compound naturally found in some meat and dairy products that has been associated with weight loss in previous studies.
Thu, 16 Jul 09
New Power Source For Portable Electronic Devices
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MIayJ3yUNiQ/090714154822.htm
Microfluidic fuel cells could provide the necessary energy to provide continuous power to remote sensors, mobile phones and laptops, according to a student. Microfluidics deals with the behavior, precise control and manipulation of fluids that are geometrically constrained to a small, typically sub-millimeter, scale.
Thu, 16 Jul 09
Nearly One In Five University Students Experienced Violence In Last Six Months
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uA3TGETRLp8/090715090635.htm
While attending university, men are equally likely as women to have been victims of physical or emotional violence, and that violence is often linked to drinking, according to a new study.
Thu, 16 Jul 09
NASA's Fermi Finds Gamma-ray Galaxy Surprises
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eQensC68png/090714165054.htm
Back in June 1991, just before the launch of NASA's Compton Gamma-Ray Observatory, astronomers knew of gamma rays from exactly one galaxy beyond our own. To their surprise and delight, the satellite captured similar emissions from dozens of other galaxies. Now its successor, the Fermi Gamma-ray Space Telescope, is filling in the picture with new finds of its own.
Thu, 16 Jul 09
Hormone Therapy Use Associated With Increased Risk Of Ovarian Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/zZEcbJlgbmE/090714165045.htm
Compared with women who have never taken hormone therapy, those who currently take it or who have taken it in the past are at increased risk of ovarian cancer, regardless of the duration of use, the formulation, estrogen dose, regimen or route of administration, according to a study in the July 15 issue of JAMA.
Thu, 16 Jul 09
Avian Bacterium More Dangerous Than Believed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0ahbV0E96Gc/090705145642.htm
Bordetella hinzii just may be the Eddie Haskell of avian bacteria. Like the notoriously sneaky character from the iconic 1950s television show "Leave It to Beaver," B. hinzii has been causing trouble and dodging the blame.
Thu, 16 Jul 09
Severe COPD May Lead To Cognitive Impairment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YpeLYXjh64I/090707121413.htm
Severe chronic obstructive pulmonary disease (COPD) is associated with lower cognitive function in older adults, according to new research. Researchers compared cognitive performance in over 4,150 adults with and without COPD and found that individuals with severe COPD had significantly lower cognitive function than those without, even after controlling for confounding factors such as comorbidities.
Thu, 16 Jul 09
Diet May Contribute Significantly To Body Burden Of Flame Retardants
http://feeds.sciencedaily.com/~r/sciencedaily/~3/67SPk5-2fq8/090714213957.htm
A new study suggests that diet is an important route of exposure to polybrominated diphenyl ethers (PBDEs). PBDEs are a class of flame retardants that are commonly found in consumer products such as polyurethane foam, electronics and textiles.
Thu, 16 Jul 09
Fetal Short-term Memory Found In 30-week-old Fetuses
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8b_X2rzyv7M/090715074924.htm
Researchers studying about 100 healthy pregnant women and their fetuses have found measured changes in how fetuses respond to repeated stimulation and exhibit "habituation." This research allows for a better understanding of the normal development of the fetal central nervous system and has implications for prevention and treatment of abnormalities.
Wed, 15 Jul 09
Global Warming: Scientists' Best Predictions May Be Wrong
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ctdM8QWqJjk/090714124956.htm
No one knows exactly how much Earth's climate will warm due to carbon emissions, but a new study suggests scientists' best predictions about global warming might be incorrect.
Wed, 15 Jul 09
Childhood Cancer Risk Rises With Mother's Age
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gIk1S6mexRU/090714103532.htm
Research indicates that a baby born to an older mother may have a slightly increased risk for many of the cancers that occur during childhood.
Wed, 15 Jul 09
First Remote, Underwater Detection Of Harmful Algae, Toxins
http://feeds.sciencedaily.com/~r/sciencedaily/~3/L35iZf3-hX0/090714154036.htm
Scientists have successfully conducted the first remote detection of a harmful algal species and its toxin below the ocean's surface.
Wed, 15 Jul 09
New Culprit Behind Obesity's Ill Metabolic Consequences
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pQgEtoHPVb0/090707131818.htm
Obesity very often leads to insulin resistance, and now researchers have uncovered another factor behind that ill consequence. The newly discovered culprit is a protein, called PEDF for short, that is secreted by fat cells. They also report evidence to suggest that specifically blocking PEDF action may reverse some of the health complications that come with obesity.
Wed, 15 Jul 09
'Copernicium' Proposed As Name For Newly Discovered Element 112
http://feeds.sciencedaily.com/~r/sciencedaily/~3/85S6QMiKEJA/090714124848.htm
In honor of scientist and astronomer Nicolaus Copernicus (1473-1543), the discovering team have suggested the name "copernicium" with the element symbol "Cp" for the new element 112.
Wed, 15 Jul 09
Was SIDS The Cause Of Infant Deaths Even 150 Years Ago?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HJZFxPBNwCg/090714103530.htm
Nineteenth century infant deaths attributed to smothering and overlaying, by either a co-sleeper or bedding, were in all likelihood crib deaths, or Sudden Infant Death Syndrome (SIDS). These deaths would have been mislabeled by lawmakers as neglect and even infanticide, because SIDS had not yet been identified, according to new research.
Wed, 15 Jul 09
New Map Hints At Venus's Wet, Volcanic Past
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TcyXwMHsm9E/090714085818.htm
Venus Express has charted the first map of Venus's southern hemisphere at infrared wavelengths. The new map hints that our neighboring world may once have been more Earth-like, with both a plate tectonics system and an ocean of water.
Wed, 15 Jul 09
New Doubts About Fasting Leading To Longer Lives Based On Study In Flies
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BcPytx0UFUk/090713201444.htm
Many studies indicate that caloric restriction extends life spans in fruit flies, mice and, most recently, rhesus monkeys, apparently by slowing the aging process. But virtually all these studies have been performed in sterile environments, on animals raised under relatively pathogen-free conditions. So researchers decided to see if reduced caloric intake also helps creatures cope with infection.
Wed, 15 Jul 09
New Advance In Revolutionary 'Bullet Fingerprinting' Technique
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YkRhaZEWhII/090713085018.htm
Chemistry researchers have developed a simple but effective way of lifting fingerprints. The technique involves studying the chemical and physical interactions occurring between the metal and the fingerprint sweat deposit. Using advanced surface imaging techniques, such as an atomic force microscope, nanoscale observations of fingerprinted brass samples can identify optimum conditions to promote the natural enhancement of the fingerprint.
Wed, 15 Jul 09
Condoms Associated With Moderate Protection Against Herpes Simplex Virus 2
http://feeds.sciencedaily.com/~r/sciencedaily/~3/V2PXE9p3GZs/090713170657.htm
Condom use is associated with a reduced risk of contracting herpes simplex virus 2, according to a report based on pooled analysis of data from previous studies.
Wed, 15 Jul 09
Reversible Generation Of High Capacity Hydrogen Storage Material Demonstrated
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GOSFbAOpMaM/090706112904.htm
Researchers have created a reversible route to generate aluminum hydride, a high capacity hydrogen storage material. This achievement is not only expected to accelerate the development of a whole class of storage materials, but also has far reaching applications in areas spanning energy technology and synthetic chemistry.
Wed, 15 Jul 09
Active Commuters Have Fewer Heart Disease Risk Factors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qlbs8mfkybs/090713170701.htm
Men and women who walk or ride a bike to work appear more fit, and men are less likely to be overweight or obese and have healthier triglyceride levels, blood pressure and insulin levels, according to a new report.
Wed, 15 Jul 09
Last Supper Of The Hominids Establishes Times They Lived At Sites
http://feeds.sciencedaily.com/~r/sciencedaily/~3/n0Hm4z6-DEg/090714103526.htm
In the French cave of Arago, scientists has analyzed the dental wear of the fossils of herbivorous animals hunted by Homo heidelbergensis. It is the first time that an analytical method has allowed the establishment of the length of human occupations at archaeological sites. The key is the last food that these hominids consumed.
Wed, 15 Jul 09
Brain Imaging And Proteins In Spinal Fluid May Improve Alzheimer's Prediction And Diagnosis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MuMEk4GoWj4/090714085806.htm
Changes in the brain measured with MRI and PET scans, combined with memory tests and detection of risk proteins in body fluids, may lead to earlier and more accurate diagnosis of Alzheimer's, according to new research.
Wed, 15 Jul 09
Climate Change May Spell Demise Of Key Salt Marsh Constituent
http://feeds.sciencedaily.com/~r/sciencedaily/~3/be7KdC_mIYU/090713085016.htm
A key constituent in New England salt marshes may be imperiled by global warming, a new study has found. Experiments show that warmer temperatures cause a spectrum of plants known as forbs to disappear.
Wed, 15 Jul 09
Obesity Contributes To Rapid Cartilage Loss
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GgR5x_nsFxQ/090714085808.htm
Obesity, among other factors, is strongly associated with an increased risk of rapid cartilage loss, according to a new study.
Wed, 15 Jul 09
Material World: Graphene's Versatility Promises New Applications
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MeH80JvNyjM/090709095420.htm
Since its discovery a few years ago, graphene has climbed to the top of the heap of new materials poised to transform the electronics and nanotechnology landscape. Now scientists have made the first measurement of a fundamental property of graphene, known as quantum capacitance. This crucial variable should prove invaluable to researchers pushing the existing limits of innovation in microchips, chemical sensing instruments, biosensors, ultracapacitance devices and flexible displays.
Wed, 15 Jul 09
Analysis Of The Personality Of Psychopaths By Means Of Their Drawings
http://feeds.sciencedaily.com/~r/sciencedaily/~3/aooDS2DdHBc/090714154945.htm
Researchers have developed a method to analyze the personality of people with psychopathologic disorders by means of their drawings. It consists of a series of Graphic Projective Tests (TPG) where patients draw what a psychologist requests. Each element of the picture has a meaning and it will give information about conscious and unconscious aspects of the analyzed person.
Wed, 15 Jul 09
Memory Test And PET Scans Detect Early Signs Of Alzheimer's
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qRnb79-fc1I/090714085812.htm
A large study of patients with mild cognitive impairment revealed that cognitive tests and brain scans can work as an early warning system for the subsequent development of Alzheimer's disease. The findings are a major step forward in the march toward earlier diagnoses of the debilitating disease.
Wed, 15 Jul 09
New Technique Could Save Cancer Patients' Fertility
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7QRgANfN-qU/090713201620.htm
The tiny egg nestled in the laboratory gel was a mere 30 days old, but its four-week birthday caused researchers to quietly celebrate. This was the first time anyone had grown a woman's immature egg cells to a healthy and nearly mature egg in the laboratory. Scientists have now completed the first critical step in the development of a new technique, which may eventually provide a new fertility option for women whose cancer treatments destroy their ability to reproduce.
Wed, 15 Jul 09
Hurricane Carlos In 3D: Carlos Power Back Up To Hurricane Status
http://feeds.sciencedaily.com/~r/sciencedaily/~3/td8-19sDetk/090714103538.htm
NASA's Tropical Rainfall Measuring Mission (TRMM) satellite has been capturing images of Carlos since it was born as tropical depression 4E last week. Scientists at NASA can use TRMM data to provide forecasters a 3-D look at the storm's cloud heights and rainfall, which is extremely helpful in forecasting.
Wed, 15 Jul 09
Higher Levels Of A Certain Protein Associated With Lower Risk Of Type 2 Diabetes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rzMHyWRpIeg/090707161426.htm
Persons with higher levels of adiponectin, a protein that is produced by fat cells and that has anti-inflammatory and insulin-sensitizing properties, have an associated lower risk of type 2 diabetes, according to an analysis of previous studies.
Wed, 15 Jul 09
New Tracking System Helps Rescue Workers Find Victims Quickly
http://feeds.sciencedaily.com/~r/sciencedaily/~3/V-427wjqUfM/090714103524.htm
How can rescue units be better protected during disaster operations or avalanche victims be found quicker? A new localization system connects satellite-based positioning systems with terrestrial locating aids and situation-dependent sensory systems.
Wed, 15 Jul 09
IQ Explains Some Of The Difference In Heart Disease Between People Of High And Low Socio-economic Status
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UY04_NxgWko/090714214832.htm
A unique study looking at the difference in cardiovascular disease (heart disease and stroke) and life expectancy between people of high and low socio-economic status has found that a person’s IQ may have a role to play. Researchers analyzed data from a group of 4,289 former soldiers in the USA. They found that IQ explained more than 20% of the difference in mortality between people from socio-economically disadvantaged backgrounds compared to those from more advantaged backgrounds.
Wed, 15 Jul 09
Sex Involved In Plant Defense
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vfx6cLmon7g/090713201448.htm
Why do some plants defend themselves from insect attacks better than others? New evidence shows that the difference might be due to whether they're getting any 'plant love.' Scientists discovered that sexually produced evening primrose plants withstand attacks from plant-eaters like caterpillars better than plant relatives that reproduce by themselves.
Wed, 15 Jul 09
Insight Into Mechanism Underlying Huntington's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/X1Zlo3cA9Hs/090713131603.htm
Researchers have gained new insight into the genetic mechanisms underlying Huntington's disease and other trinucleotide repeat (TNR) disorders, identifying a novel DNA repair pathway that specifically targets TNR hairpin removal in the daughter DNA strand.
Wed, 15 Jul 09
Identifying Diarrhea Causing Bacteria By Tiny Difference In Genes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/a7YkgdtsyVc/090630075441.htm
Researchers have develop a new method for better diagnostic of diarrhea causing bacteria. Every year, diarrhea causes around five million fatalities worldwide. Most people die due to pathogenic microorganisms, such as bacteria or viruses, which were ingested into the gastro-intestinal tract through contaminated drinking water or food. Determining which bacterium is causing the illness in those cases is sometimes very complex.
Wed, 15 Jul 09
Medical Researchers Profile Genes In Acutely Ill Idiopathic Pulmonary Fibrosis Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7s_73f3DZMM/090707093621.htm
The first findings from a one-of-a-kind, patient-driven effort to provide lung tissue for research might help doctors predict when patients with idiopathic pulmonary fibrosis are becoming dangerously ill and also could point the way to interventions that could sustain them until life-saving transplants can be performed. The study addresses a dilemma in IPF care that currently is unsolved.
Wed, 15 Jul 09
Facile Synthesis Of Nanoparticles With Multiple Functions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mAnP07xEDhg/090713170752.htm
Scientists have discovered a new environmentally friendly method to synthesize a wide variety of nanoparticles inexpensively. Metals that dissolve in water were successfully extracted and transferred into a layer of an organic solvent that floats on water.
Wed, 15 Jul 09
Annual Costs Of Stroke In US Children At Least $42 Million
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mioP_bRJMpA/090709170752.htm
Stroke in children costs at least $42 million annually for initial care in the United States. The lifetime costs of childhood stroke are likely greater than costs for adults due to longer life expectancy, which underscores the importance of preventing and treating stroke in children, researchers said.
Wed, 15 Jul 09
Darwin’s Mystery Of Appearance Of Flowering Plants Explained
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BiS2yHRSj_M/090713211621.htm
The appearance of flowering plants on Earth, and their rapid dissemination during the Cretaceous can be attributed to their capacity to transform the world to their own needs, according to a new perspective on their evolution. Flowering plants changed conditions during this period to suit themselves. They provide an entirely new explanation for what Darwin considered to be one of the greatest mysteries with which he was confronted.
Wed, 15 Jul 09
Individuals At Risk For Developing Colon Cancer Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tyopJRO8Ixg/090713201618.htm
A new study identifies a group of individuals at increased risk for developing colon cancer and holds the promise for developing new tailored cancer treatments.
Wed, 15 Jul 09
One Billion Hungry People: Multiple Causes Of Food Insecurity Considered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9ImafF6axzI/090625113857.htm
New articles document some of the multiple causes of food insecurity. Topics include desertification, flooding, adaptation of remote communities to modern technology, seasonality of food crops and the corresponding dearth between harvests, lack of iron in traditionally consumed food, resulting in anaemia, and taboos that inhibit people from supplementing their diets with nutritious wild fruits that are readily available.
Wed, 15 Jul 09
Improving Treatment Of Patients With Heart Attack
http://feeds.sciencedaily.com/~r/sciencedaily/~3/suWAX4TCU2c/090625133111.htm
When faced with patients suffering a heart attack, doctors have two choices: fibrinolytic therapy or primary percutaneous coronary intervention. Guidelines for treating heart attacks are generally based on clinical trials that do not take "real-life" conditions into account. The latest study analyzes these gaps and provides potential solutions to improve treatment of heart attack.
Wed, 15 Jul 09
New Statistical Technique Improves Precision Of Nanotechnology Data
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pnBx9nl7eJE/090701103010.htm
A new statistical analysis technique that identifies and removes systematic bias, noise and equipment-based artifacts from experimental data could lead to more precise and reliable measurement of nanomaterials and nanostructures likely to have future industrial applications.
Wed, 15 Jul 09
Couples Who Cohabit Before Engagement Are More Likely To Struggle
http://feeds.sciencedaily.com/~r/sciencedaily/~3/b7jssZiRJEE/090713144122.htm
Researchers have found that couples who live together before they are engaged have a higher chance of getting divorced than those who wait until they are married to live together, or at least wait until they are engaged. In addition, couples who lived together before engagement and then married, reported a lower satisfaction in their marriages.
Wed, 15 Jul 09
Water Snake Startles Fish So They Flee Into Its Jaws
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wYbclNA8gyk/090618170024.htm
Forget the old folk tales about snakes hypnotizing their prey. The tentacled snake from South East Asia has developed a more effective technique. The small water snake has found a way to startle its prey so that the fish turn toward the snake's head to flee instead of turning away.
Wed, 15 Jul 09
Smoking Associated With More Rapid Progression Of Multiple Sclerosis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vRANW2QhS80/090713170703.htm
Patients with multiple sclerosis who smoke appear to experience a more rapid progression of their disease, according to a new report.
Wed, 15 Jul 09
Clean Fuels Could Reduce Deaths From Ship Smokestacks By 40,000 Annually
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6tSLHFqGTgc/090708094835.htm
Rising levels of smokestack emissions from oceangoing ships will cause an estimated 87,000 deaths worldwide each year by 2012 -- almost one-third higher than previously believed, according to the second major study on that topic. The study says that government action to reduce sulfur emissions from shipping fuel (the source of air pollution linked to an increased risk of illness and death) could reduce that toll.
Wed, 15 Jul 09
New, Less Invasive Genetic Test Greatly Improves Pregnancy Rates In Older Women With Poor Prognosis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8wapuRq9Rys/090629081758.htm
A new test examining chromosomes in human eggs a few hours after fertilization can identify those that are capable of forming a healthy baby. The scientists have already enabled seven ongoing pregnancies in a group of older women with a history of multiple failed IVF attempts.
Wed, 15 Jul 09
Herbicide Diversity Needed To Keep Herbicide Roundup Effective
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TS6jZu5sDkU/090713151158.htm
Using a diverse herbicide application strategy may increase production costs, but a five-year study shows the practice will drastically reduce weeds and seeds that are resistant to a popular herbicide.
Wed, 15 Jul 09
How Noise And Nervous System Get In Way Of Reading Skills
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sXT5I-yAY_s/090713201442.htm
A child's brain has to work overtime in a noisy classroom to do its typical but very important job of distinguishing sounds whose subtle differences are key to success with language and reading. But, according to a new study, that simply is too much to ask of children whose nervous systems' have trouble transcribing "ba," "da" and "ga," three little sounds that mean so much to literacy.
Wed, 15 Jul 09
Swine Flu: H1N1 Virus More Dangerous Than Suspected, Except To Survivors Of The 1918 Pandemic Flu Virus
http://feeds.sciencedaily.com/~r/sciencedaily/~3/q8jI1Zbw8m0/090713212231.htm
Researchers also noted that those people exposed to the 1918 virus, all of whom are now in advanced old age, have antibodies that neutralize the H1N1 virus.
Wed, 15 Jul 09
Certain Type Of Implanted Lenses May Be A Treatment Option For Some Patients With Nearsightedness
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-oCmiC94c1c/090713170707.htm
Implantable lenses made of a collagen-like substance appear to provide stable correction of moderate to high nearsightedness over four years of follow-up, according to a new report.
Wed, 15 Jul 09
Fire Ant Outcompetes Other Species, Even In Its Native Habitat
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HJ30xGxCciw/090705141721.htm
Even in its native Argentina, the fire ant wins in head-to-head competition with other ant species more than three-quarters of the time.
Wed, 15 Jul 09
HIV-1 Damages Gut Antibody-producing Immune Cells Within Days Of Infection
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7rE16hi5ETM/090707093751.htm
The virus that causes AIDS is classified as a lentivirus, a word derived from the Latin prefix, "lenti-," meaning "slow". But new research suggests that HIV-1 is anything but -- moving at breathtaking speed in destroying and dysregulating the body's gut-based B-cell antibody-producing system.
Wed, 15 Jul 09
Plants' Internal Clock Can Improve Climate Change Models
http://feeds.sciencedaily.com/~r/sciencedaily/~3/a02FT6WIXn4/090702080121.htm
The ability of plants to tell the time, a mechanism common to all living beings, enables them to survive, grow and reproduce. Scientists have studied this circadian clock from a molecular viewpoint and have found an ecological implication: it makes climate change scenarios and carbon dioxide level figures more accurate.
Wed, 15 Jul 09
Bath Time Falls Injure Thousands Of Children Annually
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WLak9l9N2cE/090713085012.htm
Bath time is a favorite ritual for many children, but parents need to take extra safety measures. A new study finds more than 43,000 children are injured while bathing each year. Most injuries occur among kids under 4, and most commonly to the face.
Tue, 14 Jul 09
DNA Is Dynamic And Has High Energy; Not Stiff Or Static As First Envisioned
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vO6UW9SkKdE/090713160523.htm
Nobel laureates Drs. Francis Crick and James Watson's first model of DNA is shown as a rigid double helix. However, the model is a stiff snapshot of idealized DNA. As researchers now note, DNA is not stiff or static. It is dynamic with high energy existing naturally in a slightly underwound state and its status changes in waves generated by normal cell functions.
Tue, 14 Jul 09
Citrus-derived Flavonoid Prevents Obesity, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xXvD0L7cdyI/090713114459.htm
A flavonoid derived from citrus fruit has shown tremendous promise for preventing weight gain and other signs of metabolic syndrome which can lead to type 2 Diabetes and increased risk of cardiovascular disease. The study looked at a flavonoid (plant-based bioactive molecule) called naringenin.
Tue, 14 Jul 09
Tracking The Life And Death Of News
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nbuBDY4qwSY/090713170759.htm
By observing the global flow of news online, computer scientists have managed to track and analyze the "news cycle" -- the way stories rise and fall in popularity.
Tue, 14 Jul 09
Easy Strength Training Exercise May Help Treat Tennis Elbow, Study Shows
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3JlA_n4OyVA/090711085220.htm
People with pain in the elbow or forearm from playing sports or just from common everyday activities, might be able to use a simple bar and strengthening exercise to alleviate pain.
Tue, 14 Jul 09
DNA-damaged Cells Communicate With Neighbors To Let Them Know They're In Trouble
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XnR6WY1CetI/090713131545.htm
When cells experiencing DNA damage fail to repair themselves, they send a signal to their neighbors letting them know they're in trouble. The discovery, which shows that a process dubbed the DDR (DNA Damage Response) also controls communication from cell to cell, has implications for both cancer and aging.
Tue, 14 Jul 09
New Cases Of Alzheimer's And Dementia Continue To Rise, Even In The 'Oldest Old'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1EPNs5WZWXs/090713085006.htm
The number of people with Alzheimer's, both new cases and total numbers, continues to rise among the oldest segments of the population in contradiction of the conventional wisdom. Previous studies have suggested that the number of people with Alzheimer's begins to level off and perhaps even drop in people age 90 and above, known as the "oldest old."
Tue, 14 Jul 09
Major Breakthrough With Water Desalination System
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pI0v4decfWs/090713144124.htm
Engineers have achieved a major breakthrough with a new mini-mobile-modular (M3) smart water desalination and filtration system. The M3, which is portable and can be monitored and operated remotely via the web, showed in a recent field study in the San Joaquin Valley that it can desalt agricultural drainage water that was nearly saturated with calcium sulfate salts at up to 65 percent product water recovery; accomplishing this with just one reverse osmosis stage.
Tue, 14 Jul 09
Why HIV Progresses Faster In Women Than In Men With Same Viral Load
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jTYNL9426nE/090713131549.htm
Scientists have found that a receptor molecule involved in the first-line recognition of HIV-1 responds to the virus differently in women, leading to subsequent differences in chronic T cell activation, a known predictor of disease progression.
Tue, 14 Jul 09
Green Industrial Lubricant Developed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8FGNWj7_r8A/090710092223.htm
Researchers have developed an environmentally-friendly lubricating grease based on ricin oil and cellulose derivatives. The new formula does not include any of the contaminating components used to manufacture traditional industrial lubricants.
Tue, 14 Jul 09
Operation For Aneurysm Yields Nearly Normal Longevity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZHgU5NGyBlw/090706161202.htm
For patients undergoing repair of intact abdominal aortic aneurysms, long-term survival has improved in recent decades. For patients undergoing repair of ruptured abdominal aortic aneurysms, short-term survival has improved and long-term survival has remained stable. A less invasive procedure, endovascular aneurysm repair, is allowing surgical repair for older people with additional health problems.
Tue, 14 Jul 09
Chemists Say Antibody Surrogates Are Just A 'Click' Away
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yoK20Dsi7PQ/090709124753.htm
Chemists have developed an innovative technique to create cheap but highly stable chemicals that have the potential to take the place of the antibodies used in many standard medical diagnostic tests.
Tue, 14 Jul 09
Motion Analysis Helps Soccer Players Get Their Kicks
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fqX_LSzNNZ4/090709082401.htm
As soccer continues to grow in popularity, injuries to soccer players are likely to increase as well. Certain injuries fall into gender-based patterns and new research suggests some underlying causes that could help lead to better treatment, or even prevention for present and future soccer stars. Kick analysis comparing male and female athletes may help treat and prevent injuries.
Tue, 14 Jul 09
Why It Is Easy To Encode New Memories But Hard To Hold Onto Them
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-EaW3evMv0o/090713100910.htm
Memories aren't made of actin filaments. But their assembly is crucial for long-term potentiation (LTP), an increase in synapse sensitivity that researchers think helps to lay down memories. Scientists reveal that LTP's actin reorganization occurs in two stages that are controlled by different pathways, a discovery that helps explain why it is easy to encode new memories but hard to hold onto them.
Tue, 14 Jul 09
Low Birth Weight Linked To Long-term Respiratory Problems
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HWnhvy93khw/090707121415.htm
Infants who weigh less than five and a half pounds at birth often enter the world with a host of medical complications, including respiratory problems. New research shows that these respiratory problems may persist well beyond their infancy and childhood and into adulthood.
Tue, 14 Jul 09
New Role Discovered For Molecule Important In Development Of The Pancreas
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jszIzQbY1VM/090710121541.htm
For years researchers have been searching for a way to treat diabetics by reactivating their insulin-producing beta cells, to no avail. Now, they may be one step closer. A protein, whose role in pancreatic development has long been recognized, has been discovered to play an additional and previously unknown regulatory role in the development of cells in the immature endocrine system. These cells ultimately give rise to pancreatic islet cells, which include beta cells.
Tue, 14 Jul 09
How Tamoxifen Stimulates Uterine Cell Growth And Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FKt4M9hEYrQ/090702170211.htm
Researchers have identified a new "feed-forward" pathway linking estrogen receptors in the membrane of the uterus to a process that increases local estrogen levels and promotes cell growth.
Tue, 14 Jul 09
Researchers Enlist DNA To Bring Carbon Nanotubes’ Promise Closer To Reality
http://feeds.sciencedaily.com/~r/sciencedaily/~3/rkEMd1DiyOA/090708132824.htm
Scientists and engineers report a new method of disentangling carbon nanotubes from a mixture and purifying them into separate species of the same electronic type. More than 20 short DNA sequences, researchers say, have the ability to recognize CNT species and fold selectively onto the nanotubes. Their hypothesis: DNA recognizes a specific nanotube in the same way that biological molecules recognize each other by structure.
Tue, 14 Jul 09
Online Computer Games Could Encourage Children To Eat Healthy Foods
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EsiBU5C9lG0/090706161209.htm
Children who play an online game promoting healthy foods and beverages appear more likely to choose nutritious snacks than those who play a game promoting unhealthy products, according to a new report.
Tue, 14 Jul 09
Fussy Baby? Linking Genes, Brain And Behavior In Children
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EwI_cyEyvRM/090713114501.htm
It comes as no surprise that some babies are more difficult to soothe than others but frustrated parents may be relieved to know that this is not necessarily an indication of their parenting skills. According to a new study, children's temperament may be due in part to a combination of a certain gene and a specific pattern of brain activity.
Tue, 14 Jul 09
New Research To Reduce Drug Side-effects
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kPT1dO6niEI/090710092524.htm
They are a group of drugs which millions of people rely on to keep pain at bay but they can have unwanted side-effects which are sometimes more serious than the original health problem. Now scientists in England are taking part in the largest-ever study on the safety of Non-Steroidal Anti-Inflammatory Drugs (NSAIDS) that has ever been performed.
Tue, 14 Jul 09
Anti-Malarial Drug: Tryptophan Deficiency May Underlie Quinine Side Effects
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eBks9ZKl62M/090626141235.htm
Researchers have found that the anti-malarial drug quinine can block a cell's ability to take up the essential amino acid tryptophan, a discovery that may explain many of the adverse side effects associated with quinine.
Tue, 14 Jul 09
Dietary Influences Of Liver Disease Examined
http://feeds.sciencedaily.com/~r/sciencedaily/~3/CWX7KmWWEIA/090701131338.htm
Diets high in protein and cholesterol are associated with a higher risk of hospitalization or death due to cirrhosis or liver cancer, while diets high in carbohydrates are associated with a lower risk.
Tue, 14 Jul 09
Tying Up Loose Ends For A Quantum Leap
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oaMlTKEMZbQ/090710092522.htm
Quantum technologies have become the Holy Grail of the IT industry with research projects springing up all over Europe. Now a major effort is being made to spur development by adopting a coordinated, structured approach.
Tue, 14 Jul 09
Electronic Tracking System Can Help Diabetes Patient Care
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ct-tEQLel-M/090706171456.htm
An electronic system with personalized patient information shared by diabetes patients and their primary care providers improved diabetes care and clinical outcomes.
Tue, 14 Jul 09
House Cats Know What They Want And How To Get It From You
http://feeds.sciencedaily.com/~r/sciencedaily/~3/S76XXVqaaWk/090713121348.htm
Anyone who has ever had cats knows how difficult it can be to get them to do anything they don't already want to do. But it seems that the house cats themselves have had distinctly less trouble getting humans to do their bidding, according to a new report.
Tue, 14 Jul 09
Like Father, Like Son: Childhood Obesity Link To Parents
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-JBIleg8EHo/090713100918.htm
The relationships between children and their parent of the same gender in the earliest years of life could be the key to understanding why some young people become obese and others do not, new research has shown.
Tue, 14 Jul 09
Number Of Patients With Dementia On The Rise
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PLKyhOqRsWs/090706150628.htm
By the year 2050, about 30 million Americans are expected to suffer from Alzheimer's disease. Experts in the field are trying to determine if sophisticated imaging equipment can help predict the development of the disease.
Tue, 14 Jul 09
Antidepressants Aid Electroconvulsive Therapy In Treating Severe Depression
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sSIAnnKb9l8/090706161300.htm
Combining antidepressant drugs with electroconvulsive therapy (ECT) does a better job of reducing symptoms of severe depression and causes less memory loss than using ECT alone, according to a new study.
Tue, 14 Jul 09
Trapping Carbon Dioxide Or Switching To Nuclear Power Not Enough To Solve Global Warming Problem, Experts Say
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FomauY-TVpE/090713085248.htm
Attempting to tackle climate change by trapping carbon dioxide or switching to nuclear power will not solve the problem of global warming, according to new energy calculations. Scientists have calculated the total energy emissions from the start of the industrial revolution in the 1880s to the modern day. They have worked out that using the increase in average global air temperature as a measure of global warming is an inadequate measure of climate change. They suggest that scientists must also take into account the total energy of the ground, ice masses and the seas if they are to model climate change accurately.
Tue, 14 Jul 09
Studies Shed Light On Racial Disparities In Cancer Survival
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1uO4QBFK5dU/090707161413.htm
Black women diagnosed with breast cancer have a greater chance of dying from the disease than white women, according to a new study.
Tue, 14 Jul 09
New Drugs Faster From Natural Compounds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0Si68cIRyuk/090713131554.htm
A researcher isolates a natural compound with promising antimicrobial properties from ocean water. But is it a discovery? Or has the compound already been described and is therefore not patentable? Researchers have now invented computational tools that enable other researchers to rapidly and economically answer the 'is it new or not?' question for promising drug targets: ring-shaped nonribosomal peptides.
Tue, 14 Jul 09
Probiotics Help Gastric-bypass Patients Lose Weight More Quickly
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dLSAud7V0AY/090713114512.htm
New research suggests that the use of a dietary supplement after Roux-en-Y gastric bypass surgery can help obese patients to more quickly lose weight and to avoid deficiency of a critical B vitamin.
Tue, 14 Jul 09
Swearing Can Actually Increase Pain Tolerance
http://feeds.sciencedaily.com/~r/sciencedaily/~3/v6EMwjlVN44/090713085453.htm
Researchers have determined that swearing can have a ‘pain-lessening effect’, according to new study.
Tue, 14 Jul 09
Infectious Disease Researchers Advancing Vaccine Against Valley Fever
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QXiU3Lejtt8/090707093627.htm
Medical mycologists have genetically engineered a live, attenuated vaccine that successfully protects mice against coccidioidomycosis.
Tue, 14 Jul 09
Medical Use For Waste Television Screens
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PguIPeqj9kw/090713085246.htm
Waste material from discarded televisions could be recycled and used in medicine, according to new research.
Tue, 14 Jul 09
Comprehensive Review Of Addiction To Prescription Painkillers Among Patients And Physicians
http://feeds.sciencedaily.com/~r/sciencedaily/~3/C9chbfvau28/090707171006.htm
Chemical dependency and recovery in patients and physicians are closely examined in a series of recent articles.
Tue, 14 Jul 09
'Repulsive' Side To Light Force Could Control Nanodevices
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yZXgr_NL_nc/090713131556.htm
Researchers have discovered a "repulsive" light force that can be used to control components on silicon microchips, meaning future nanodevices could be controlled by light rather than electricity.
Tue, 14 Jul 09
Regular Moderate Alcohol Intake Has Cognitive Benefits In Older Adults
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ElgjPossr3Y/090713114506.htm
A glass of wine here, a nightcap there -- new research suggests that moderate alcohol intake offers long-term cognitive protection and reduces the risk of dementia in older adults.
Tue, 14 Jul 09
Scientists Are Learning More About Big Birds From Feathers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/N35myPdpKPE/090706151144.htm
Catching adult eagles for research purposes is no easy task, but a researcher has found a way around the problem, and, in the process, gathered even more information about the birds without ever laying a hand on one.
Tue, 14 Jul 09
Influenza Monitoring By The US Military
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jfBPup3aeq8/090707093629.htm
The recent global swine flu outbreak has underscored the critical need for good surveillance and rapid access to epidemiological data. The US military, starting with early monitoring efforts in the 1970s, has developed a broad-based influenza monitoring system.
Tue, 14 Jul 09
Mystery E. Coli Genes Essential For Survival Of Many Species
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RDFstg50yGI/090713085252.htm
Scientists have shown that E. coli - one of the best known and extensively studied organisms in the world - remains an enigma that may hold the key to human diseases, such as cancer.Scientists have examined the genome sequence of this workhorse of the laboratory and spotted three previously unknown genes that, it turns out, are essential for the survival of E. coli and one out of the three could also be implicated in cancer or developmental abnormalities in humans.
Tue, 14 Jul 09
Internet-based Intervention May Improve Insomnia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pU_mkIcUquA/090706161257.htm
An online insomnia intervention based on established face-to-face cognitive behavioral therapy techniques appears to improve patients' sleep.
Mon, 13 Jul 09
'Rosetta Stone' Of Bacterial Communication Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xD5JfbO0Tg8/090707093619.htm
The Rosetta Stone of bacterial communication may have been found. Although they have no sensory organs, bacteria can get a good idea about what's going on in their neighborhood and communicate with each other, mainly by secreting and taking in chemicals from their surrounding environment. Even though there are millions of different kinds of bacteria with their own ways of sensing the world around them, bioengineers believe they have found a principle common to all of them.
Mon, 13 Jul 09
New Pill May Prevent Injury After Radiation Exposure
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XPVAiaPfiMU/090710121537.htm
Researchers have discovered and analyzed several new compounds, collectively called the ''EUK-400 series,'' which could someday be used to prevent radiation-induced injuries to kidneys, lungs, skin, intestinal tract and brains of radiological terrorism victims.
Mon, 13 Jul 09
Artificial Leaf Development: Structure Of Artificial Light Harvesting Antenna Determined
http://feeds.sciencedaily.com/~r/sciencedaily/~3/nBP-I0923Uc/090629200756.htm
Scientists have modified chlorophyll from an alga so that it resembles the extremely efficient light antennae of bacteria. The team was then able to determine the structure of these light antennae. This is the first step to converting sunlight into energy using an artificial leaf.
Mon, 13 Jul 09
Molecule That Regulates Heart Size Developed By Using Zebrafish Screening Model
http://feeds.sciencedaily.com/~r/sciencedaily/~3/srXtbegwgbw/090705131810.htm
Using zebrafish, researchers have identified and described an enzyme inhibitor that increases the number of cardiac progenitor cells and influences the size of the developing heart. The task was accomplished primarily because of the powerful advantages of studying embryonic development in zebrafish, vertebrates whose transparent embryos develop rapidly, are small and easy to handle and, most importantly, grow outside of the mother.
Mon, 13 Jul 09
Quantum Computers And Tossing A Coin In The Microcosm
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kaafS23H5l4/090709140806.htm
An atomic "coin" can display a superposition of heads and tails when it has been thrown. If you leave the decision where a quantum particle should go to a coin like this, you get unusual effects. For the first time, physicists have demonstrated these effects in an experiment with caesium.
Mon, 13 Jul 09
Losing Sight Of People In A Crowd Can Spell Disaster, Warns New Report
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wP5DVJBnfhI/090710121539.htm
Focusing on technology instead of people is a key factor in events going wrong, according to a major series of reports into crowd behavior and management.
Mon, 13 Jul 09
First Direct Evidence Of Substantial Fish Consumption By Early Modern Humans In China 40,000 Years Ago
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GuM2tpojtPY/090706171544.htm
Freshwater fish are an important part of the diet of many peoples around the world, but it has been unclear when fish became an important part of the year-round diet for early humans. A new study shows it may have happened in China as far back as 40,000 years ago.
Mon, 13 Jul 09
Enzyme Important In Aging Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/etWi9iCjD9c/090710170109.htm
The secret to longevity may lie in an enzyme with the ability to promote a robust immune system into old age by maintaining the function of the thymus throughout life, according to researchers studying an "anti-aging" mouse model that lives longer than a typical mouse.
Mon, 13 Jul 09
New Insights Into Formation Of The Centromere, A Key Cellular Structure In Powering And Controlling Chromosome Segregation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GsAlVeEK3v4/090701102902.htm
Scientists have described the formation of the centromere, a key cellular structure in powering and controlling chromosome segregation and accurate cell division.
Mon, 13 Jul 09
Cesarean Section: Local Anesthetic Reduces Need For Painkillers Post-op
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_DqMghkOO-A/090707093623.htm
Giving a local anesthetic during a Cesarean section helps manage pain after the operation and can reduce consumption of painkillers, according to researchers. The researchers recommend local anesthetics as part of integrated pain management strategies for Cesarean section operations, provided that consideration is given to the cost.
Mon, 13 Jul 09
Core Nuclear Pore Elements Likely Shared By All Eukaryotes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Hd37ycI4km4/090711153156.htm
For perhaps 1.8 billion years after life first emerged on Earth, a sort of evolutionary writer's block stalled the development of organisms more complicated than single cells. Then, a burst of experimental creativity about 1.7 billion years ago brought the cell nucleus onto the scene, stashing the cell's genetic material inside a protective inner membrane and setting the stage for the evolution of more sophisticated creatures from yeast, say, to plants and human beings. Now research shows that one of the most basic design principles of this new eukaryotic life-form -- the gatekeeper to the cell nucleus known as the nuclear pore complex -- is largely shared across the most distantly related eukaryotes.
Mon, 13 Jul 09
College Students Might Drink Less If They Knew Peers' True Habits
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LfIjgeRsUN0/090709205421.htm
Blame it on peer pressure. When college students think that other undergrads drink a lot of alcohol, they drink more themselves. However, a new systematic review suggests that when college students learn they are mistaken about the actual normal drinking habits of their peers, they sometimes imbibe less often.
Mon, 13 Jul 09
Herschel Images Promise Bright Future For Astronomy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/coptQ2O1DLg/090710101450.htm
Herschel has carried out the first test observations with all its instruments, with spectacular results. Galaxies, star-forming regions and dying stars comprised the telescope's first targets. The instruments provided spectacular data at their first attempt, finding water, carbon and revealing dozens of distant galaxies.
Mon, 13 Jul 09
New Alzheimer's Disease Treatment Promising
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-3dQ60QV7Lo/090712145228.htm
Researchers have found that a compound called NIC5-15, might be a safe and effective treatment to stabilize cognitive performance in patients with mild to moderate Alzheimer's disease.
Mon, 13 Jul 09
DNA Patterns Of Microbes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3ZfNeaBaRhA/090625074625.htm
The genomes or DNA of microbes contain defined DNA patterns called genome signatures. Such signatures may be used to establish relationships and to search for DNA from viruses or other organisms in the microbes' genomes. Foreign DNA in bacteria has often been associated with disease-causing abilities. Researchers have now compared methods for examining the genome signatures of microbes.
Mon, 13 Jul 09
Environmental Manganese Good In Trace Amounts But Can Correlate To Cancer Rates
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SqQN6S2H2Ec/090710170107.htm
In the first ecological study of its kind in the world, a researcher has uncovered the unique finding that groundwater and airborne manganese in North Carolina correlates with cancer mortality at the county level.
Mon, 13 Jul 09
Researchers Find A Quicker, Cheaper Way To Sort Isotopes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/f8Rhf8xajzM/090629200628.htm
Chemists have taken a novel approach to building a new device to determine the isotope ratios within a certain substance. It's a new twist on a old procedure used to solve crimes, identify chemicals and date ancient artifacts (think carbon-14 dating). In a newly developed device, magnets are replaced with mirrors, and a laser is pointed into the gas produced by burning a sample of the substance.
Mon, 13 Jul 09
Does Size Matter? Study Shows Taller People Earn More Money
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ixn3KXDK5Wg/090710092226.htm
Taller men are able to earn more money than their shorter counterparts simply because taller people are perceived to be more intelligent and powerful, according to a new study.
Mon, 13 Jul 09
Tremors On Southern San Andreas Fault May Mean Increased Earthquake Risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/W5kVG1yNYKM/090709140817.htm
Tremors under the Parkfield segment of the San Andreas Fault have increased with increasing stress on a nearby locked segment of the fault, perhaps signaling a greater chance of an earthquake. The tremors, like a constant, low-level rumble, increased after quakes in 2003 and 2004, and are at the end of a segment that last ruptured in 1857 in a 7.8 magnitude quake.
Mon, 13 Jul 09
Discovery Highlights New Direction For Drug Discovery
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eV0XsabhtPM/090705131755.htm
In a discovery that rebuffs conventional scientific thinking, researchers have discovered a novel way to block the activity of the fusion protein responsible for Ewing's sarcoma, a rare cancer found in children and young adults.
Mon, 13 Jul 09
Key To Maintaining Embryonic Stem Cells In Lab
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9qW1pZUeU9w/090709140810.htm
In a new study that could transform embryonic stem cell (ES cell) research, scientists have discovered why mouse ES cells can be easily grown in a laboratory while other mammalian ES cells are difficult, if not impossible, to maintain.
Mon, 13 Jul 09
One Secret To How TB Sticks With You
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sf-0C2N-WoM/090709124741.htm
Mycobacterium tuberculosis is arguably the world's most successful infectious agent because it knows how to avoid elimination by slowing its own growth to a crawl. Now, scientists offer new insights into the bugs' talent for meager living.
Mon, 13 Jul 09
Earth Hotspot Poorly Imaged
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gpa5HSM_TdE/090622194340.htm
The Earth's mantle, situated under the Earth's crust, is very much the spot for studying interesting geological processes. Although we do not realize it, right under our feet there is a sultry world of circulating Earth layers. We only come into contact with these hot Earth layers in the event of earthquakes and volcanic eruptions.
Mon, 13 Jul 09
Athletes And Weekend Warriors Can Keep Playing After Shoulder Joint Replacement, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xQlfUbBmDD4/090710092028.htm
Replacing a joint in any part of the body often leads to a long recovery process and the possibility of not being able to return to a sport or activity. However, a new study shows that even an older individual who receives a total shoulder joint replacement can return to full participation within approximately six months of surgery.
Mon, 13 Jul 09
Male Seahorses Like Big Mates
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cjb6_wgoZqE/090707094708.htm
Male seahorses select partners based on their body size, according to a new study. Male seahorses have a clear agenda when it comes to selecting a mating partner: to increase their reproductive success. By being choosy and preferring large females, they are likely to have more and bigger eggs, as well as bigger offspring.
Mon, 13 Jul 09
Link Between Oral Infections And Cardiovascular Disease Morbidity Explained
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2x6rPvb9yc8/090709140822.htm
A strong connection between periodontal disease and cardiovascular disease (CVD) has been suggested in recent clinical studies. As many as 75 percent of adults in the United States have been affected by periodontal disease, and an estimated 80.7 million adults (one out of every three) have been a victim of CVD in 2006, according to the American Heart Association.
Mon, 13 Jul 09
What Can Be Done About Micropollutants In Water Resources?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0vNOoIboUM0/090623090150.htm
Sooner or later, chemicals – and increasingly also nanoparticles – from textiles, pharmaceuticals, cosmetics or construction materials end up in natural waters. Here, they may pose risks for animals and plants, or even for drinking water safety and human health. Changes in the production and use of bitumen sheets mean that the leaching of biocides can be dramatically reduced.
Mon, 13 Jul 09
Heart Transplant Recipients Can Improve Fitness And Perform High Intensity Workouts
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Na0-tEx9hhE/090706113749.htm
Heart transplant recipients' cardio-respiratory fitness is around 30 to 50 percent lower than age-matched healthy sedentary individuals. As a result, exercise rehabilitation should be very important to these patients, and a new study shows they can improve their overall physical fitness.
Mon, 13 Jul 09
Digitization Of Films: From Grain To Pixel
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Pz4Ltpf0epI/090622194344.htm
Not only are video shops struggling with the digitization of films. Digitization is also giving rise to problems in a completely different area. Film archives and laboratories have built up their work around the analogue film and due to the possibilities of digitization are now confronted with a wide range of opportunities and problems.
Mon, 13 Jul 09
Partner Violence Continues After Break-up
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Av_RiFDQIIQ/090709110541.htm
Violence inflicted by an intimate partner lasts longer if the couple has children together, and the violence continues after the relationship ends. In addition, children are harmed more by witnessing violence between their parents than previously thought.
Sun, 12 Jul 09
Monkeys And Humans Use Parallel Mechanism To Recognize Faces
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dQB1v-2rX-w/090625133102.htm
Researchers have demonstrated for the first time rhesus monkeys and humans share a specific perceptual mechanism, configural perception, for discriminating among the numerous faces they encounter daily. The study provides insight into the evolution of the critical human social skill of facial recognition, which enables us to form relationships and interact appropriately with others. This study with rhesus monkeys suggests the human ability to distinguish faces is 30+ million years old.
Sun, 12 Jul 09
Diets Bad For The Teeth Are Also Bad For The Body
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OC1kheZiwrM/090709170807.htm
Dental disease reveals very early on that eating habits are putting a person at risk for systemic disease. Because chronic medical disease takes decades to become severe enough to be detected in screening tests, dental diseases may provide plenty of lead-time to change harmful eating habits and thereby decrease the risk of developing the other diseases of civilization.
Sun, 12 Jul 09
Seals Quickly Respond To Gain And Loss Of Habitat Under Climate Change
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GWTdv5TR81Y/090709201849.htm
Southern elephant seals responded rapidly to climate and habitat change and established a new breeding site thousands of kilometers from existing breeding grounds, according to new research. Scientists found that when the Antarctic ice sheets of the Ross Sea Embayment retreated in the Holocene period 8,000 years ago, elephant seals, Mirounga leonina, adopted the emergent habitat and established a new population which flourished.
Sun, 12 Jul 09
Scientists Rule Out Link Between Specific Antibodies, Such As Folic Acid related Auto-antibodies, And Spina Bifida
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PgeSdpWVlVs/090708181158.htm
New research shows that a woman's risk of having a child with a neural tube defect, such as spina bifida, is not linked to folic acid related auto-antibodies.
Sun, 12 Jul 09
Sound Imaging: Clever Acoustics Help Blind People See The World
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yV7YM8MyTh0/090703091804.htm
Video from portable cameras is analyzed to calculate the distance of obstacles and predict the movements of people and cars. This information is then transformed and relayed to a blind person as a three-dimensional ‘picture’ of sound.
Sun, 12 Jul 09
Wrong Dose Of Heart Meds Too Frequent In Children
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pPQSlkUAYiE/090707171004.htm
Infants and young children treated with heart drugs get the wrong dose or end up on the wrong end of medication errors more often than older children, according to new research.
Sun, 12 Jul 09
One-finger Exercise Reveals Unexpected Limits To Dexterity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/NlUmMJxiWPk/090708073847.htm
"Push your finger as hard as you can against the surface. Now as hard as you can but move it slowly -- follow the ticking clock. Now faster. Now faster." These were the commands for volunteers in a simple experiment that casts doubt on old ideas about mechanisms to control hand muscles. Complete understanding of the result may help explain why manual dexterity is so vulnerable to aging and disease, and even help design more versatile robotic graspers.
Sun, 12 Jul 09
Elevated Insulin Linked To Increased Breast Cancer Risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hnrWDXZUTkI/090709170819.htm
Elevated insulin levels in the blood appear to raise the risk of breast cancer in post-menopausal women, according to new research.
Sun, 12 Jul 09
Structural Biology Scores With Protein Snapshot
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kn47xA6tiyg/090625141502.htm
Investigators have used nuclear magnetic resonance methods to determine the structure of the largest membrane-spanning protein to date. The group's ability to determine the NMR structure of the bacterial protein diacylglycerol kinase, reported in the journal Science, suggests that similar methods can now be used to study the structures of other membrane proteins.
Sun, 12 Jul 09
Novel Genetic Finding Offers New Avenue For Future Crohn's Disease Treatment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/53-kySITMx4/090709124748.htm
Researchers have identified a novel link between ITCH, a gene known to regulate inflammation in the body and NOD2, a gene which causes the majority of genetic Crohn's Disease diagnoses. ITCH, when malfunctioning, causes widespread inflammatory diseases, including inflammatory bowel disease, gastritis, uncontrolled skin inflammation, and pulmonary pneumonitis. Researchers found that ITCH also influences NOD2-induced inflammation.
Sun, 12 Jul 09
Exploring How The Body Adapts To Exercise At Altitude: Hypoxia Affects Muscle And Nerve Responses
http://feeds.sciencedaily.com/~r/sciencedaily/~3/8c6Mpkx-wKQ/090629165639.htm
Exercise requires the integrated activity of every organ and tissue in the body, and understanding how these respond to the decreased oxygen levels present at moderate to high altitude is the focus of the current special issue of High Altitude Medicine & Biology.
Sun, 12 Jul 09
Quit Smoking: Pre-cessation Patch Doubles Quit Success Rate
http://feeds.sciencedaily.com/~r/sciencedaily/~3/57RoAMypLNA/090709124756.htm
Using a nicotine patch before quitting smoking can double success rates, according to new research. Researchers say their latest data suggest changes should be made to nicotine patch labeling.
Sun, 12 Jul 09
Declining Aral Sea: Satellite Images Highlight Dramatic Retreat
http://feeds.sciencedaily.com/~r/sciencedaily/~3/fXxF6Vo6oBc/090710092228.htm
New Envisat images highlight the dramatic retreat of the Aral Sea's shoreline from 2006 to 2009. The Aral Sea was once the world's fourth-largest inland body of water, but it has been steadily shrinking over the past 50 years since the rivers that fed it were diverted for irrigation projects.
Sun, 12 Jul 09
Oxygen Key To 'Cut And Paste' Of Genes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/129R5fM9QjI/090706090749.htm
An oxygen-sensitive enzyme has been found to play a key role in how genes create the many different proteins that make up our bodies.
Sun, 12 Jul 09
New Theory Gives More Precise Estimates Of Large-scale Biodiversity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LcVmslDFQbc/090709174751.htm
The Census Bureau is good at profiling the US population by sampling small groups of people. Biologists, however, lack a good theory of how to estimate the richness of life in large areas like the Amazon from small-plot studies. Ecologists have applied information theory to develop a new and robust theory that does a much better job predicting biodiversity in large biomes and could be a boon to conservation biologists.
Sun, 12 Jul 09
Of Yeast And Men: Unraveling The Molecular Mechanisms Of Friedreich's Ataxia
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JbvkpDUjRJc/090709124751.htm
Scientists have created an experimental model that produces large-scale expansion of GAA repeats during DNA replication, which is the cause of Friedreich's Ataxia. With this model, the researchers are able to analyze GAA repeat expansions and then identify cellular proteins that thwarted normal replication and promoted the elongated sequence.
Sun, 12 Jul 09
Forest Fire Prevention Efforts Could Lessen Carbon Sequestration, Add To Greenhouse Warming
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YUeWDw30kmA/090708132810.htm
Widely sought efforts to reduce fuels that increase catastrophic fire in Pacific Northwest forests will be counterproductive to another important societal goal of sequestering carbon to help offset global warming, forestry researchers conclude in a new report.
Sun, 12 Jul 09
Positive Emotions Increase Life Satisfaction By Building Resilience
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HSbr3UnEVLM/090708184544.htm
People who seed their life with frequent moments of positive emotions increase their resilience against challenges, according to a new study.
Sat, 11 Jul 09
Down Under Dinosaur Burrow Discovery Provides Climate Change Clues
http://feeds.sciencedaily.com/~r/sciencedaily/~3/D0_LtrnbMTQ/090710205357.htm
The same paleontologist who made the Montana discovery of the first known dinosaur burrow has now found the trace fossil of a burrow in Australia almost identical to the one he identified in the US. His growing evidence of dinosaur burrows provides clues to climate change and how dinosaurs may have survived extreme environments -- throwing a wrench in some extinction theories.
Sat, 11 Jul 09
New Device Could Benefit Treatment Of Hand Injuries
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UNRV_SXWmmc/090707150542.htm
Bioengineering students invented a device to measure intrinsic hand muscle strength. The device could revolutionize the diagnosis and treatment of hand injuries and neurological disorders, specifically carpal tunnel syndrome.
Sat, 11 Jul 09
New Approach To Engineering For Extreme Environments
http://feeds.sciencedaily.com/~r/sciencedaily/~3/X78sfxSgtB8/090629165605.htm
Composite materials such as fiberglass, which take on a mix of properties of their constituent compounds, have been around for decades. Now, a materials scientist is taking composites to the nanoscale, where entirely new properties, not found in any of the original compounds, can emerge.
Sat, 11 Jul 09
Chinese Herbs May Relieve Endometriosis Symptoms, Review Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yNZy6ZmTSFg/090707201114.htm
Chinese herbal medicine may relieve symptoms in the treatment of endometriosis. A systematic review found some evidence that women had comparable benefits following laparoscopic surgery and suffered fewer adverse effects if they were given Chinese herbs compared with conventional drug treatments.
Sat, 11 Jul 09
Remote-control Closed System Invented For Inserting Radio-active Atoms Inside Fullerenes
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4iYmkN5pIAk/090707161428.htm
A hands-off process for filling fullerenes with radioactive material is being tested to see if it will produce multi-modality material for better imaging and targeting of treatment of brain tumors.
Sat, 11 Jul 09
Army Study Improves Ability To Predict Drinking Water Needs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ex4JsXcsau4/090708073849.htm
When soldiers leave base for a three-day mission, how much water should they bring? New research may now provide military planners an accurate answer. The study improves an existing water needs equation by 58-65 percent. If the new formula works in the field, as expected, it could accurately predict water needs not only for soldiers, but also for civilians who work or exercise outdoors.
Sat, 11 Jul 09
Newborn Brain Cells Improve Our Ability To Navigate Our Environment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vn28HSZMC1g/090709140808.htm
Although the fact that we generate new brain cells throughout life is no longer disputed, their purpose has been the topic of much debate. Now, researchers have made a big leap forward in understanding what all these newborn neurons might actually do. Their study illustrates how these young cells improve our ability to navigate our environment.
Sat, 11 Jul 09
Key Protein Can Help Cells Or Cause Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/6KCaBLn3tTE/090707131822.htm
Scientist have discovered a key process in cell growth that can lead to the formation of tumors. They found that an overabundance of the polo-like kinase 1, or Plk1, molecule during cell growth, as well as a shortage of the p53 molecule, will lead to tumor formation.
Sat, 11 Jul 09
On Malaria Struggle, Baboons And Humans Have Similar Stories To Tell
http://feeds.sciencedaily.com/~r/sciencedaily/~3/G1QLRf66MBM/090624152822.htm
Evolutionarily speaking, baboons may be our more distant cousins among primates. But when it comes to our experiences with malaria over the course of time, it seems the stories of our two species have followed very similar plots.
Sat, 11 Jul 09
First 16-patient, Multicenter 'Domino Donor' Kidney Transplant
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BS4hLza8z2g/090707183138.htm
Surgical teams at the Johns Hopkins Hospital, Barnes-Jewish Hospital in St. Louis, INTEGRIS Baptist Medical Center in Oklahoma City and Henry Ford Hospital in Detroit successfully completed the first eight-way, multi-hospital, domino kidney transplant.
Sat, 11 Jul 09
Inexpensive Solar Cells: Low-cost Solution Processing Method Developed For CIGS-based Solar Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xSFbm0O2jlQ/090707131901.htm
Material science specialists and engineers have developed a low-cost solution processing method for their CISS (copper-indium-diselenide) solar cells which have the potential to be produced on a commercial scale.
Sat, 11 Jul 09
Potential Patient Safety Risks Among Methadone Maintenance Treatment Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7eqnQOLHlGw/090708104259.htm
Researchers have identified potential safety risks among methadone maintenance treatment patients due to the quantity and accuracy of medical record documentation. Improved communication and coordination among substance use treatment and medical providers could mitigate and manage the potential adverse effects of methadone and interacting medications.
Sat, 11 Jul 09
Robot Learns To Smile And Frown
http://feeds.sciencedaily.com/~r/sciencedaily/~3/sdq4zuhq6Uw/090708181206.htm
A hyper-realistic Einstein robot learned to smile and make facial expressions through a process of self-guided learning. The researchers used machine learning to "empower" their robot to learn to make realistic facial expressions. "As far as we know, no other research group has used machine learning to teach a robot to make realistic facial expressions," said a computer science Ph.D. student involved in the research.
Sat, 11 Jul 09
'Normal' Cells Far From Cancer Give Nanosignals Of Trouble
http://feeds.sciencedaily.com/~r/sciencedaily/~3/67pPXlb9D7o/090707131828.htm
A new study of human colon, pancreatic and lung cells is the first to report that cancer cells and their non-cancerous cell neighbors, although quite different under the microscope, share very similar structural abnormalities on the nanoscale level. The most striking findings were that these nanoscale alterations occurred at some distance from the tumor and, importantly, could be identified by assessing more easily accessible tissue, such as the cheek for lung cancer detection.
Sat, 11 Jul 09
New Electron Microscopy Images Reveal The Assembly Of HIV
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uKcBcSwSQvE/090623090159.htm
Researchers provide the as yet closest look at the structure of immature HIV Scientists have produced a three-dimensional reconstruction of HIV (Human Immunodeficiency Virus), which shows the structure of the immature form of the virus at unprecedented detail.
Sat, 11 Jul 09
Fruit And Vegetable Intake In Pregnant Women Reduces Risk Of Upper Respiratory Tract Infection
http://feeds.sciencedaily.com/~r/sciencedaily/~3/m7YHnyyyIKQ/090708101308.htm
Researchers have observed in a study of pregnant women that consumption of at least seven servings per day of fruits and vegetables moderately reduced the risk of developing an upper respiratory tract infection.
Sat, 11 Jul 09
Experts Call For Local And Regional Control Of Sites For Radioactive Waste
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GJComlO8xV8/090709140813.htm
The withdrawal of Nevada's Yucca Mountain as a potential nuclear waste repository has reopened the debate over how and where to dispose of spent nuclear fuel and high-level nuclear waste.
Sat, 11 Jul 09
Most Neuropsychological Tests Don't Tell Alzheimer's Disease From Vascular Dementia, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/q7oHWfyyCC4/090708132822.htm
Most of the cognitive tests that have been used to decide whether someone has Alzheimer's disease or vascular dementia have not been very helpful when used alone. A new report concluded that when older people are confused and forgetful, doctors should base their diagnoses on many different types of information, including medical history and brain imaging.
Sat, 11 Jul 09
Map Of Your Brain May Reveal Early Mental Illness
http://feeds.sciencedaily.com/~r/sciencedaily/~3/R04SsKWFepM/090709095431.htm
Researchers are producing topographical maps of people's healthy and schizophrenic brains in an effort to develop the first scientific tool for early and more definite diagnosis of mental disorders such as schizophrenia. The scientists have already found differences in the hippocampus in people who have schizophrenia. Diagnosing the beginning stage of mental disorders remains elusive, although this when they are most treatable.
Sat, 11 Jul 09
Stem Cells' 'Suspended' State Preserved By Key Step, Scientists Report
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Q-vWJShVnHY/090708132807.htm
Scientists have identified a gene that is essential for embryonic stem cells to maintain their all-purpose, pluripotent state. Exploiting the finding may lead to a greater understanding of how cells acquire their specialized states and provide a strategy to efficiently reprogram mature cells back into the pluripotent state, an elusive step in stem cell research but one crucial to a range of potential clinical treatments.
Sat, 11 Jul 09
Faster, More Cost-effective DNA Test For Crime Scenes, Disease Diagnosis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/t4zibOfXDQE/090708094837.htm
Scientists in Japan are reporting development of a faster, less expensive version of the fabled polymerase chain reaction, a DNA test widely used in criminal investigations, disease diagnosis, biological research and other applications. The new method could lead to expanded use of PCR in medicine, the criminal justice system and elsewhere, the researchers say.
Sat, 11 Jul 09
Patients With Moderate To Severe Periodontitis Need Evaluation For Heart Disease Risk
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tA7GuP6IUqQ/090630101332.htm
Patients with moderate to severe periodontitis should receive evaluation and possible treatment to reduce their risk of atherosclerotic cardiovascular disease, according to a special consensus paper.
Sat, 11 Jul 09
New Way To Make Sensors That Detect Toxic Chemicals
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qTmob8MI_LY/090708114752.htm
Researchers have developed a new method for making extremely pure, very small metal-oxide nanoparticles. They are using this simple, fast, and low-temperature process to make materials for gas sensors that detect toxic industrial chemicals and biological warfare agents.
Sat, 11 Jul 09
A Biomarker For Anorexia?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GeziCcqG5sI/090623111949.htm
Eating disorders are frequently seen as psychological or societal diseases, but do they have an underlying biological cause? A new study shows that the levels of a brain protein differ between healthy and anorexic women.
Sat, 11 Jul 09
Humans May Give Swine Flu To Pigs In New Twist To Pandemic
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cxiL_pzAFV4/090709201847.htm
The strain of influenza, A/H1N1, that is currently pandemic in humans has been shown to be infectious to pigs and to spread rapidly in a trial pig population. Researchers infected five pigs with the human strain of swine flu. Within four days the virus had spread to three uninfected pigs housed with the infected ones.
Sat, 11 Jul 09
Link Between Migraines And Reduced Breast Cancer Risk Confirmed In Follow-up Study
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5Ni8kTF_w3U/090709072427.htm
The relationship between migraine headaches in women and a significant reduction in breast cancer risk has been confirmed in a follow-on study to landmark research published last year. The new study found a 26 percent reduced risk of breast cancer among both premenopausal and postmenopausal women with a clinical diagnosis of migraines.
Sat, 11 Jul 09
Digging In Beach Sand Increases Risk Of Gastrointestinal Illness
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KSuVXmBHzZk/090709204841.htm
Children and adults who build castles and dig in the sand at the beach are at greater risk of developing gastrointestinal diseases and diarrhea than people who only walk on the shore or swim in the surf, according to researchers.
Sat, 11 Jul 09
Possible Benefit From Online Genetic Testing For Lung Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mnWJUE5vVuw/090630132003.htm
As scientists continue to decode the human genome and the information becomes publicly available, private companies that offer online genetic testing are multiplying. Scientists at the National Institutes of Health were concerned that perhaps these tests posed a risk. They evaluated responses to an online test among smokers who did or did not have a common genetic variant associated with risk for lung cancer. The results raise a new set of questions, but also allay some of the early concerns.
Sat, 11 Jul 09
Contaminated Site Remediation: Are Nanomaterials The Answer?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VSwW0FZE6pI/090708160506.htm
Scientists have reviewed the use of nanomaterials for environmental cleanup. The authors conclude that the technology could be an effective and economically viable alternative for some current site cleanup practices, but potential risks remain poorly understood.
Sat, 11 Jul 09
Doctor's Compassion May Help Cure Colds Faster
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZIMuOe3V2wg/090709210249.htm
Some cold medicines will shave a day off your suffering from the common cold, but they often produce unpleasant side effects. A new study shows, for the first time, that the doctor's empathy may be an even better way to speed recovery.
Fri, 10 Jul 09
New Kind Of Astronomical Object Around Black Hole: Living Fossil Records 'Supermassive' Kick
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5ERE5ZZuxsU/090709170759.htm
The tight cluster of stars surrounding a supermassive black hole after it has been violently kicked out of a galaxy represents a new kind of astronomical object and a fossil record of the kick. A new article discusses the theoretical properties of "hypercompact stellar systems" and suggests that hundreds of these faint star clusters might be detected at optical wavelengths in our immediate cosmic environment.
Fri, 10 Jul 09
Hearing Manipulated By Electronics
http://feeds.sciencedaily.com/~r/sciencedaily/~3/r9XygTudBYk/090707094906.htm
An implanted electronic ion pump in organic material can be used to carry signals to specific cells in the nervous system and in this way treat various illnesses. In a unique study, researchers have used the pumps to successfully manipulate the hearing in laboratory animals. The technique represents a breakthrough for the machine-to-brain interface, with opportunities for greater symbiosis between electronics and biological systems.
Fri, 10 Jul 09
Ozone, Nitrogen Change The Way Rising Carbon Dioxide Affects Earth's Water
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xQbOR3GmyLE/090709120657.htm
Through a recent modeling experiment, researchers have found that future concentrations of carbon dioxide and ozone in the atmosphere and of nitrogen in the soil are likely to have an important but overlooked effect on the cycling of water from sky to land to waterways.
Fri, 10 Jul 09
Dry Mouth Linked To Prescription And Over The Counter Drugs
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hGOlY9S5bms/090709120701.htm
Approximately ninety-one percent of dentists say patients complaining about dry mouth are taking multiple medications, according to a nationwide survey.
Fri, 10 Jul 09
Cellphone TV? Viewing Photos And Video On Cell Phone Made Easier With New Mini Beamer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4rFHwDBb04s/090624093649.htm
Looking at photos on a cellphone display can be somewhat arduous. A new mini beamer will make it easier. The beamer is so small that it can be integrated in a cellphone or a PDA. As it does not need an extra light source it also conserves the battery.
Fri, 10 Jul 09
Scientific Achievements Less Prominent Than A Decade Ago
http://feeds.sciencedaily.com/~r/sciencedaily/~3/654UrfrqtjE/090709124743.htm
As the 40th anniversary of the moon landing approaches, a new report finds that overwhelming majorities of Americans believe that science has had a positive effect on society and that science has made life easier for most people. The public also rates scientists highly and believes government investments in science pay off in the long term.
Fri, 10 Jul 09
Nanopillars Promise Cheap, Efficient, Flexible Solar Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZXBUL0OBp1o/090709170757.htm
Researchers have grown dense arrays of single-crystal semiconductors arranged as nanoscale pillars on low-cost, aluminum foil substrates. When the nanopillars are combined with a transparent, positively charged semiconductor that serves as a window, the resulting 3-D photovoltaic promises efficient, cheap, flexible solar cells.
Fri, 10 Jul 09
Attractive Males Release Fewer Sperm
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YPB7dHohelQ/090709095425.htm
Attractive males release fewer sperm per mating to maximize their chances of producing offspring across a range of females, according to a new article on the evolution of ejaculation strategies. The findings suggest that, paradoxically, matings with attractive males may be less fertile than those with unattractive ones.
Fri, 10 Jul 09
Straighten Up And Fly Right: Moths Benefit More From Flexible Wings Than Rigid
http://feeds.sciencedaily.com/~r/sciencedaily/~3/xTBxj_JDOE4/090629200836.htm
New research using high-speed digital imaging shows that, at least for some insects, wings that flex and deform, something like what happens to a heavy beach towel when you snap it to get rid of the sand, are the best for staying aloft.
Fri, 10 Jul 09
Scientists Solve Mystery About Why HIV Patients Are More Susceptible To TB Infection
http://feeds.sciencedaily.com/~r/sciencedaily/~3/WcDI7xptlfk/090630101334.htm
Scientists took an important first-step toward the development of new treatments to help people with HIV battle Mycobacterium tuberculosis infection. HIV interferes with the cellular and molecular mechanisms used by the lungs to fight TB infection.
Fri, 10 Jul 09
Prairie Dogs: Influencing The Accumulation Of Metals In Plants?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5f6Kb6WAtXg/090623162121.htm
Elemental hyperaccumulation in plants is hypothesized to represent a plant defense mechanism. The objective of this study was to determine whether selenium hyperaccumulation offers plants long-term protection from the black-tailed prairie dog. This study is the first to test the ecological significance of hyperaccumulation over a long period in a hyperaccumulator's natural habitat.
Fri, 10 Jul 09
Withdrawal Syndrome After Consumption Of Designer Drug 'Spice Gold'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lwvhvhq2gz0/090709072911.htm
A clinical report from Dresden supports the impression that the street drug “Spice Gold” is strongly addictive. Researchers describe a young man who developed physical withdrawal symptoms after regular consumption of this designer drug, accompanied by a dependence syndrome.
Fri, 10 Jul 09
Reduced Diet Thwarts Aging, Disease In Monkeys
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-uO048g34C0/090709110836.htm
The bottom-line message from a decades-long study of monkeys on a restricted diet is simple: Consuming fewer calories leads to a longer, healthier life. Researchers report that a nutritious but reduced-calorie diet blunts aging and significantly delays the onset of such age-related disorders as cancer, diabetes, cardiovascular disease and brain atrophy.
Fri, 10 Jul 09
Potential Fix For Damaged Knees Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EbFOhLpsgiA/090709082403.htm
Investigators have shown that a biodegradable scaffold or plug can be used to treat patients with damaged knee cartilage. The study is unique in that it used serial magnetic resonance imaging and newer quantitative T2 mapping to examine how the plug incorporated itself into the knee.
Fri, 10 Jul 09
Obsidian 'Trail' Provides Clues To How Humans Settled, Interacted In Kuril Islands
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Bs4bYXezNaM/090622152033.htm
Archaeologists have used stone tools to answer many questions about human ancestors in both the distant and near past and now they are analyzing the origin of obsidian flakes to better understand how people settled and interacted in the inhospitable Kuril Islands.
Fri, 10 Jul 09
Single Thawed Embryo Transfer After PGD Does Not Affect Pregnancy Rates
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bzj8ak8jKow/090630075305.htm
Transferring just one embryo at a time to a woman's womb after embryos have undergone preimplantation genetic diagnosis (PGD) and freezing at the blastocyst stage has become a real option after researchers achieved pregnancy rates that were as good as those for blastocysts that had not had a cell removed for PGD before freezing. Their results mean that it will be possible to reduce the number of multiple pregnancies after PGD and the consequent complications associated with these pregnancies.
Fri, 10 Jul 09
Treating Lazy Eyes With A Joystick
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BgmukLYLlmE/090622152035.htm
Researchers have developed a computer game therapy that is now ready for treating adults.
Fri, 10 Jul 09
Severity Of Mental Disease Can Be Predicted By Family History, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/KWFkbDA9ohc/090706161217.htm
We've all been asked at routine visits to the doctor to record our family's history with medical problems like cancer, diabetes or heart disease. But when it comes to mental disorders, usually mum's the word.
Fri, 10 Jul 09
Methane-eating Microbes Can Use Iron And Manganese Oxides To 'Breathe'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MeAwHLvNSOQ/090709140815.htm
Iron and manganese compounds, in addition to sulfate, may play an important role in converting methane to carbon dioxide and eventually carbonates in the Earth's oceans, according researchers looking at anaerobic sediments. These same compounds may have been key to methane reduction in the early, oxygenless days of the planet's atmosphere.
Fri, 10 Jul 09
Oxygen Test Has Potential To Detect Some Critical Congenital Heart Defects In Newborns
http://feeds.sciencedaily.com/~r/sciencedaily/~3/jCQ6VWvz4OQ/090706161200.htm
Early detection of critical congenital heart disease is important for avoiding serious health consequences. A noninvasive measure of oxygen saturation in the blood is a reasonable way to detect congenital heart disease in newborns, but there is not yet enough data available to make the test mandatory. The associations call for more research on the topic.
Fri, 10 Jul 09
Enzyme Fights Mutated Protein In Inherited Parkinson's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PAzT_crLEJ4/090626091133.htm
An enzyme that naturally occurs in the brain helps destroy the mutated protein that is the most common cause of inherited Parkinson's disease, researchers have found.
Fri, 10 Jul 09
Risk Of Breast Cancer And A Single-nucleotide Polymorphism
http://feeds.sciencedaily.com/~r/sciencedaily/~3/JLeYgdZZXr8/090701182920.htm
A single-nucleotide polymorphism is associated with increased risk of estrogen receptor-positive and -negative breast cancer, according to a new study.
Fri, 10 Jul 09
Better Looks At Mars Minerals For Instrument On NASA's Mars Odyssey Orbiter
http://feeds.sciencedaily.com/~r/sciencedaily/~3/5fbduK2iImM/090622171516.htm
A new orbit at an earlier time of day is increasing the sensitivity and efficiency of ASU's THEMIS multi-band camera on NASA's Mars Odyssey spacecraft.
Fri, 10 Jul 09
Difference In The Way Children With Autism Learn New Behaviors Described
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4bbzrMuMJvE/090706113647.htm
Researchers have uncovered important new insights into the neurological basis of autism.
Fri, 10 Jul 09
Simulations Illuminate Universe's First Twin Stars
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MayD_ZFWf6k/090709170805.htm
The earliest stars in the universe formed not only as individuals, but sometimes also as twins, according to a new article in Science. By creating simulations of the early universe, astrophysicists have gained the most detailed understanding to date of the formation of the first stars.
Fri, 10 Jul 09
New Discovery To Aid In Diagnosis And Treatment Of Kidney Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/X_WXrowhYwE/090701182918.htm
Researchers have identified the target antigen PLA2R in patients with idiopathic membranous nephropathy (kidney disease), which has implications for the diagnosis and treatment of this disease.
Fri, 10 Jul 09
Database On Tiny Plant Will Help Scientists Create Better Crops, Biofuels and Medicines
http://feeds.sciencedaily.com/~r/sciencedaily/~3/As1kJMfsEdM/090622103907.htm
A tiny plant with a long name helps researchers design new crops to help meet increasing demands for food, biofuels, industrial materials, and new medicines. The genes, proteins, and other traits of this plant reside in the Arabidopsis Information Resource (TAIR) database. TAIR just released a new version of the genome sequence, which includes an array of improvements and novel features that promise to accelerate this critical research.
Fri, 10 Jul 09
Bone Coupling Factor Key To Skeletal Health
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1hOUeVaYqTs/090708090915.htm
Previously, scientists had searched for but missed the biological link between bone growth and bone remodeling -- a natural give-and-take system that is crucial to skeletal health. A new study pinpoints the coupling factor as transforming growth factor beta-1, or TGF beta-1.
Fri, 10 Jul 09
One-stop Shop For Grid Computing
http://feeds.sciencedaily.com/~r/sciencedaily/~3/cMupcrNH55k/090630075612.htm
From searching for cures for disease to monitoring the Earth’s atmosphere, grid computing has become essential to data-intensive research. But accessing limited grid resources is not always a simple task.
Fri, 10 Jul 09
No Psychological Risk In Children Next-Born After Stillbirth, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OTRcI7kgyI8/090708195342.htm
There is no evidence that children next-born after stillbirth are clinically at risk compared to children of non-bereaved mothers, according to a new study. However, the study did find evidence of less optimal mother-child interaction.
Fri, 10 Jul 09
'Hotspots' Of Human Impact On Coastal Areas Ranked
http://feeds.sciencedaily.com/~r/sciencedaily/~3/DqdB5FdZ8IE/090709140820.htm
Coastal marine ecosystems are at risk worldwide as a result of human activities, according to scientists. The authors have performed the first integrated analysis of all coastal areas of the world.
Fri, 10 Jul 09
Genetic Key To Breast Cancer's Ability To Survive And Spread Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yM5OnnqoIMQ/090706134048.htm
New research sheds light on a genetic function that gives breast cancer cells the ability to survive and spread to the bone years after treatment has been administered. The findings support the study of therapies that target this survival capacity and force the death of latent breast cancer cells before they get a chance to metastasize.
Fri, 10 Jul 09
Targeting Helpers Of Heat Shock Proteins Could Help Treat Cancer, Cardiovascular Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/P-Ul9b4nvdo/090622112800.htm
Dissecting how heat shock protein 90 gets steroid receptors into shape to use hormones like estrogen and testosterone could lead to targeted therapies for hormone-driven cancers, such as breast and prostate, that need them as well, researchers say.
Fri, 10 Jul 09
MicroRNAs Help Control HIV Life Cycle
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yGyNKBaVcbs/090625133213.htm
Scientists have discovered that specific microRNAs (non-coding RNAs that interfere with gene expression) reduce HIV replication and infectivity in human T-cells. In particular, miR29 plays a key role in controlling the HIV life cycle. The study suggests that HIV may have co-opted this cellular defense mechanism to help the virus hide from the immune system and antiviral drugs.
Fri, 10 Jul 09
NuTeV Anomaly Helps Shed Light On Physics Of The Nucleus
http://feeds.sciencedaily.com/~r/sciencedaily/~3/UYNhUhTwtRE/090629132252.htm
A new calculation clarifies the complicated relationship between protons and neutrons in the atomic nucleus and offers a fascinating resolution of the famous NuTeV Anomaly.
Fri, 10 Jul 09
Parents' Endorsement Of Vigorous Team Sports Increases Children's Physical Activity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ej741jHjP8o/090706090317.htm
Parents who value strenuous team sports are more likely to influence their children to join a team or at least participate in some kind of exercise, and spend less time in front of the TV or computer, a new study says.
Fri, 10 Jul 09
Evolution Guides Cooperative Turn-taking, Game Theory-based Computer Simulations Show
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hToXYxMoL8Q/090708195337.htm
It's not just good manners to wait your turn -- it's actually down to evolution, according to new research. What's more, this behavior can be simulated using a simple computer algorithm and basic genetic laws.
Fri, 10 Jul 09
Hitting Cell Hot Spot Could Help Thwart Parkinson's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iQDW8GCV9-I/090707201222.htm
A new way to 'turn off the taps' in the brain and stop a chemical being released in excess amounts -- which can lead to Parkinson's Disease -- has been developed.
Fri, 10 Jul 09
2000-year-old Statue Of An Athlete Sheds Light On Corrosion And Other Modern Challenges
http://feeds.sciencedaily.com/~r/sciencedaily/~3/j2GBqzGPoC0/090708094832.htm
The restoration of a 2,000-year-old bronze sculpture of the famed ancient Greek athlete Apoxyomenos may help modern scientists understand how to prevent metal corrosion, discover the safest ways to permanently store nuclear waste, and understand other perplexing problems.
Fri, 10 Jul 09
Give Children Iron Supplements: They Don't Increase Malaria Risk, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/tXtroDuKbf0/090707201134.htm
Iron supplements do not increase the likelihood of contracting malaria and should not be withheld from children at risk of the disease, despite World Health Organization guidelines to the contrary, a new review suggests.
Fri, 10 Jul 09
Method To Efficiently Produce Less Toxic Drugs Using Organic Molecules
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MjrB4pb7tVY/090708074032.htm
Chemists have developed a method to use small organic molecules as catalysts, in the synthesis process called organocatalysis. Such synthesis process takes place during the production of chiral drugs.
Fri, 10 Jul 09
Media Tend To Doomsay When Addressing Environmental Issues
http://feeds.sciencedaily.com/~r/sciencedaily/~3/opcrZfrxZ6I/090708083230.htm
Researchers analyzed the role played by the media in creating and spreading a stance regarding the protection of the environment, sustainable development and natural heritage.
Fri, 10 Jul 09
Antimatter Positrons Explain Gamma Ray Mystery In Milky Way Galaxy
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bHIOG3BfNTE/090708201840.htm
Astrophysicists have solved a mystery that led some scientists to speculate that the distribution of certain gamma rays in our Milky Way galaxy was evidence of a form of undetectable "dark matter" believed to make up much of the mass of the universe.
Fri, 10 Jul 09
Plastics Chemical, Bisphenol A, Retards Growth, Function Of Adult Reproductive Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OdI_Ny3Zdsg/090708101306.htm
Bisphenol A, a chemical widely used in plastics and known to cause reproductive problems in the offspring of pregnant mice exposed to it, also has been found to retard the growth of follicles of adult mice and hinder their production of steroid hormones, researchers report. Their study is the first to show that chronic exposure to low doses of BPA can impair the growth and function of adult reproductive cells.
Fri, 10 Jul 09
First Evidence That Weed Killers Improve Nutritional Value Of A Key Food Crop
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LDixsWkZEQc/090708094830.htm
Scientists are reporting for the first time that the use of weed killers in farmers' fields boosts the nutritional value of an important food a crop. Application of two common herbicides to several varieties of sweet corn significantly increased the amount of key nutrients termed carotenoids in the corn kernels, according to a new study.
Fri, 10 Jul 09
Critical Link Between Obesity And Diabetes Discovered
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hrINssANatM/090708090917.htm
A new study has shown a critical link between obesity and the onset of Type 2 diabetes, a discovery which could lead to the design of a drug to prevent the disease.
Fri, 10 Jul 09
Photography: Blur's Noise And Distortion Reversed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/PSSu5FDEG9M/090708094827.htm
Errant pixels and blurry regions in a photo, whether digital or scanned, are the bane of photographers everywhere. Moreover, in vision processing research degraded photos are common and require restoration to a high-quality un-degraded state.
Fri, 10 Jul 09
Do Bilingual Persons Have Distinct Language Areas In The Brain?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/OGq1v8hYJrs/090708094825.htm
A unique single case study suggests that first and second languages of bilingual people are represented in different places in the brain.
Thu, 9 Jul 09
Easter Island Compound Extends Lifespan Of Old Mice: 28 To 38 Percent Longer Life
http://feeds.sciencedaily.com/~r/sciencedaily/~3/eB3VoU07UQo/090708132800.htm
Researchers report that rapamycin, a compound first discovered in soil of Easter Island, extended the expected lifespan of middle-aged mice by 28 percent to 38 percent. In human terms, this would be greater than the predicted increase in extra years of life if cancer and heart disease were both cured and prevented.
Thu, 9 Jul 09
Is Obesity An Oral Bacterial Disease?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/FSrihOxKKdg/090708153240.htm
Scientists have discovered new links between certain oral bacteria and obesity. In a recent study, the researchers demonstrated that the salivary bacterial composition of overweight women differs from non-overweight women. This preliminary work may provide clues to interactions between oral bacteria and the pathology of obesity. This research may help investigators learn new avenues for fighting the obesity epidemic.
Thu, 9 Jul 09
Better Than A Hearing Aid? Better Hearing With Bone Conducted Sound
http://feeds.sciencedaily.com/~r/sciencedaily/~3/g-wFMCiNWJ8/090622194227.htm
New technology to hear vibrations through the skull bone has been developed. Besides investigating the function of a new implantable bone conduction hearing aid, researchers have studied the sensitivity for bone conducted sound and also examined the possibilities for a two-way communication system that is utilizing bone conduction in noisy environments.
Thu, 9 Jul 09
PET Can Measure Effectiveness Of Novel Breast Cancer Treatment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/4SYr8FgTcww/090702090600.htm
Positron emission tomography scans in mice can be used to determine whether a novel type of breast cancer treatment is working as intended, study shows.
Thu, 9 Jul 09
Beyond Carbon Dioxide: Growing Importance Of Hydrofluorocarbons (HFCs) In Climate Warming
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7V0odoKj1s8/090622171503.htm
Some of the substances that are helping to avert the destruction of the ozone layer could increasingly contribute to climate warming, according to scientists.
Thu, 9 Jul 09
Language Skills In Your Twenties May Predict Risk Of Dementia Decades Later
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7IBSOIGTTo4/090708181153.htm
People who have superior language skills early in life may be less likely to develop Alzheimer's disease decades later, despite having the hallmark signs of the disease, according to new research.
Thu, 9 Jul 09
Giant Supernovae Farthest Ever Detected: Dying Stars Shed Light On Universe Formation 11 Billion Years Ago
http://feeds.sciencedaily.com/~r/sciencedaily/~3/QvPlQud5_lo/090708132803.htm
UC Irvine cosmologists have found two supernovae farther away than any previously detected by using a new technique that could help find other dying stars at the edge of the universe.
Thu, 9 Jul 09
Inflammation May Trigger Alzheimer's Disease
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TLVdfKUw40E/090708181204.htm
New research sheds light on what causes Alzheimer's disease and suggests a possible therapy.
Thu, 9 Jul 09
Ice Volume Of Switzerland’s Glaciers Calculated
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pVsC8IVyIiI/090622064813.htm
Switzerland's glaciers have lost twelve percent of their ice volume since 1999. The water stored in Switzerland's glaciers currently equates to about two thirds of the volume of Lake Geneva.
Thu, 9 Jul 09
Toxic Chemicals Affect Steroid Hormones Differently In Humans And Invertebrates
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IMds4tcgLpY/090629200840.htm
In a study with important consequences for studies on the effects of chemicals on steroid responses in humans, scientists have found that -- contrary to earlier assumptions -- enzymes used for the synthesis of steroids in insects, snails, octopuses and corals are unrelated to those used in humans.
Thu, 9 Jul 09
Ecological Model City Masdar: City Will Use Renewable Energy And Leave No Carbon Dioxide Or Waste
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gc1-N4dXjlI/090629081849.htm
The city of the future is currently being constructed on the outskirts of Abu Dhabi. Masdar City shall be supplied exclusively with renewable energy and produce neither carbon dioxide nor waste. An underground transportation system, will leave its streets car-free.
Thu, 9 Jul 09
Delirium In Hospitalized Adults: Situation Critical, No Relief Available
http://feeds.sciencedaily.com/~r/sciencedaily/~3/mUuwuQ-sZaw/090706113652.htm
In a systematic review of the scientific literature on delirium prevention and treatment, investigators found that despite the significant health and financial burdens of delirium for hospitalized adults, no effective way to prevent or treat the condition has been identified.
Thu, 9 Jul 09
Explosive Growth Of Life On Earth Fueled By Early Greening Of Planet
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uijc0m30T70/090708153235.htm
Earth's 4.5-billion-year history is filled with several turning points but one of the biggest is the Cambrian explosion of life, roughly 540 million years ago, when complex, multi-cellular life burst out all over the planet. Now, researchers believe they have found the trigger for the Cambrian explosion.
Thu, 9 Jul 09
Hearing Improved: First Successful Medical Treatment For Tumor-inducing Genetic Disorder
http://feeds.sciencedaily.com/~r/sciencedaily/~3/b1t4mzTsoRc/090708181156.htm
Treatment with the angiogenesis inhibitor bevacizumab improved hearing and alleviated other symptoms in patients with neurofibromatosis type 2 (NF2).
Thu, 9 Jul 09
Domestication Of Chile Pepper Provides Insights Into Crop Origin And Evolution
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Ap2gI_d727o/090619152137.htm
Chile peppers have long played an important role in the diets of Mesoamerican people. Capsicum annuum is one of five domesticated species of chiles and is one of the primary components of these diets. However, little is known regarding the original location of domestication of C. annuum and the genetic diversity in wild relatives. Researchers have now found a large amount of diversity in individuals from the Yucatan Peninsula, making this a center of diversity for chiles.
Thu, 9 Jul 09
New Treatment Avenue For Acute Myeloid Leukemia?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/wHu5mO7UJRQ/090706112900.htm
Medical researchers have developed the first leukemia therapy that targets a protein, CD123, on the surface of cancer stem cells that drive acute myeloid leukemia, which is an aggressive disease with a poor outcome.
Thu, 9 Jul 09
How Mitochondria Get Their Membranes Bent
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-ja39_uPJwI/090624153108.htm
Underneath their smooth surface mitochondria harbor an elaborately folded inner membrane. It holds a multitude of bottleneck like invaginations, which expand into elongated cavities. Now researchers have identified two proteins linked in an antagonistic manner that are relevant for governing inner membrane structure.
Thu, 9 Jul 09
Plain Language For Health Care Professionals To Improve Communication With Patients
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RSNXGbkc58g/090708153242.htm
The doctor speaks "medicalese," and the patient's eyes glaze over. Researchers noticed this familiar failure to communicate when health care researchers asked people to take part in studies. So they created a Toolkit that illustrates strategies for communicating clearly with study participants.
Thu, 9 Jul 09
Spontaneous Assembly: A New Look At How Proteins Assemble And Organize Themselves Into Complex Patterns
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gZQrNQjXAzc/090708132820.htm
Self-assembling and self-organizing systems are the Holy Grails of nanotechnology, but nature has been producing such systems for millions of years. A team of scientists has taken a unique look at how thousands of bacterial membrane proteins are able to assemble into clusters that direct cell movement to select chemicals in their environment. Their results provide valuable insight into how complex periodic patterns in biological systems can be generated and repaired.
Thu, 9 Jul 09
Possible Drug Target Found For One Of The Most Aggressive Breast Cancers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ksYv7KklOmk/090708153238.htm
Investigators have identified a gene that could be an important therapeutic target in the treatment of the most aggressive forms of breast cancer. Currently, patients with these cancers have few treatment options.
Thu, 9 Jul 09
Saharan Dust Storms Linked To Enigmatic Fertilizer Plankton In Ocean
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_U-GCjs4X_8/090619125903.htm
Scientists have returned after six weeks on the Cape Verde Islands, 800 kilometers off the West African coast. They collected air and water samples in the search for a link between Saharan dust storms and the biological productivity of the ocean. The results were intriguing: the waters off Cape Verde contain huge amounts of the recently discovered cyanobacteria “UCYN-A”, an enigmatic fertilizer alga whose characteristics are puzzling to scientists.
Thu, 9 Jul 09
3-D Protein Map To Aid Stroke And Cancer Research Drafted
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ACRLlXegaTE/090625100353.htm
Researchers have generated a computer map of the protein acid-sensing ion channel-1, or ASIC-1, an important neurological pathway. The map greatly simplifies the testing of drugs or compounds designed to protect neurons, regulate their molecular interactions or isolate brain tumors. The ASIC-1 work began with a toxin found only in the venom of the Trinidad chevron tarantula.
Thu, 9 Jul 09
Some Particles Cool Climate, Others Add To Global Warming
http://feeds.sciencedaily.com/~r/sciencedaily/~3/x-Igp3qZB9Y/090619125905.htm
Particles cool down the climate, but to which extent? This has remained an unanswered question for scientists. A new study brings the scientific community a step closer to solving the mystery.
Thu, 9 Jul 09
Health Clinic Conditions May Be To Blame For Decrease In Primary Care Physicians
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Mto7oGV10xE/090708114800.htm
Adverse work conditions may be to blame for the decline in the number of primary care physicians nationwide, according to a new study.
Thu, 9 Jul 09
Physics Of Bumpy Roads: What Makes Roads Ripple Like A Washboard?
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LSXUvjayHJM/090707131834.htm
Just about any road with a loose surface -- sand or gravel or snow -- develops ripples that make driving a very shaky experience. Physicists have recreated this "washboard" phenomenon in the lab with surprising results: ripples appear even when the springy suspension of the car and the rolling shape of the wheel are eliminated. The discovery may smooth the way to designing improved suspension systems that eliminate the bumpy ride.
Thu, 9 Jul 09
Mice With Skin Condition Help Scientists Understand Tumor Growth
http://feeds.sciencedaily.com/~r/sciencedaily/~3/MqkykZ886hg/090706134052.htm
Cancerous tumors sometimes form at the site of chronic wounds or injury, but the reason why is not entirely clear. Now researchers have engineered mice with a persistent wound-like skin condition, and the mice are helping them understand the tumor-promoting effects of long-standing wounds and injuries.
Thu, 9 Jul 09
World’s First-hydrogen Powered Yacht With A Fully Integrated Laboratory Will Study Mediterranean Pollution
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SgPVd0Z8L9c/090619125909.htm
The objective of the Zero CO2 project is to sail around the Mediterranean using a clean carbon-free auxiliary motor (gasoline powered motors are commonly used in yachts for all port maneuvers). A 12m craft, the yacht will be equipped with an electric motor driven by a hydrogen fuel cell.
Thu, 9 Jul 09
Expression of Myoglobin in Human Cancers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/grmU5lfBKZc/090624093306.htm
Scientists report that myoglobin may protect against the stresses of tumor growth. Myoglobin plays an important role in muscle cells by both transporting oxygen and preventing cell damage by scavenging free radicals. Tumor cells often survive in hypoxic (low oxygen), high free radical environments, despite these stresses on tumor growth.
Thu, 9 Jul 09
Cells Use Import Machinery To Export Their Goods As Well
http://feeds.sciencedaily.com/~r/sciencedaily/~3/iw6KCDt9HKs/090625133107.htm
Research suggests a new level of regulation for cellular export process by molecules previously assumed to be dedicated to import activities.
Thu, 9 Jul 09
Mothers Of Children With Autism Have Higher Parental Stress, Psychological Distress
http://feeds.sciencedaily.com/~r/sciencedaily/~3/pbV-9La9cEs/090708153233.htm
Mothers of children with autism had higher levels of parenting-related stress and psychological distress than mothers of children with developmental delay. Children's problem behavior was associated with increases in both parenting-related stress and distress in both groups, but this relationship was stronger in mothers of children with autism. The research also found no link between a child's decreased daily living skills and increased parental stress and psychological distress.
Thu, 9 Jul 09
Erythropoietin Boosts Brainpower, Researchers Find
http://feeds.sciencedaily.com/~r/sciencedaily/~3/k3rACS7oE0A/090707201110.htm
Healthy young mice treated with erythropoietin show lasting improved performance in learning and other higher brain functions. Researchers tested the cognitive effects of the growth factor, finding that it improved the sequential learning and memory components of a complex long-term cognitive task.
Thu, 9 Jul 09
Virus-resistant Grapevines
http://feeds.sciencedaily.com/~r/sciencedaily/~3/-vHtIDVLzJA/090702080525.htm
Viruses can cost winegrowers an entire harvest. If they infest the grapevines, even pesticides are often no use. What’s more, these chemicals are harmful to the environment. Researchers are growing plants that produce antibodies against the viruses and are thus immune.
Thu, 9 Jul 09
Cancer Survivors At Greater Risk Of Birth Complications; Special Monitoring Needed
http://feeds.sciencedaily.com/~r/sciencedaily/~3/csYDKo2PT2A/090701082917.htm
Survivors of childhood cancer run particular risks when pregnant and should be closely monitored, say researchers. Although such women may have conceived spontaneously and considered themselves to be perfectly healthy, their deliveries should always take place in a hospital, experts urge.
Thu, 9 Jul 09
Elephant-size Loopholes Sustain Thai Ivory Trade
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Y_TD1dJ2h4g/090619082133.htm
Legal loopholes and insufficient law enforcement mean that Thailand continues to harbor the largest illegal ivory market in Asia, says a new report.
Thu, 9 Jul 09
Student Drinking: Changing Perceptions Reduces Alcohol Misuse
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vSxaMHG0wds/090707201116.htm
Giving students personalized feedback on their drinking behavior and how it compares to social norms might help to reduce alcohol misuse, according to a new eview.
Thu, 9 Jul 09
New Portrait Of Omega Nebula's Glistening Watercolors
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uf3fOeOs9Ls/090707094909.htm
The Omega Nebula, a stellar nursery where infant stars illuminate and sculpt a vast pastel fantasy of dust and gas, is revealed in all its glory.
Thu, 9 Jul 09
Study May Cough Up New Treatment For A Tickly Throat
http://feeds.sciencedaily.com/~r/sciencedaily/~3/kE4Nky9NbKI/090708074037.htm
Scientists investigating the cough reflex have discovered a new group of molecules on the surface of nerve cells that make us cough when irritated.
Thu, 9 Jul 09
Making A Bigger Splash In The Gene Pool, And How Delaying Reproduction Can Help
http://feeds.sciencedaily.com/~r/sciencedaily/~3/dMcgc228rog/090702090119.htm
We humans have a strong urge to reproduce, but if the environment steers us into putting off having children, we may be rewarded with both longer life and a bigger genetic footprint in future generations.
Thu, 9 Jul 09
Biomarker That Safely Monitors Tumor Response To New Brain Cancer Treatment
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RLsU6aI-S34/090701082714.htm
A specific biomarker, a protein released by dying tumor cells, has been identified as an effective tool in an animal model to gauge the response to a novel gene therapy treatment for glioblastoma mulitforme.
Thu, 9 Jul 09
Painstaking Search For Quotes In Television Programs Comes To An End
http://feeds.sciencedaily.com/~r/sciencedaily/~3/uY8YJyMz0fU/090707094531.htm
The journalist recalls more or less what Ulla Schmidt said regarding the health reform, but needs the exact wording to be able to cite her. A new speech recognition system helps to search TV broadcasts. It does not need to be updated and so does not entail any running costs.
Thu, 9 Jul 09
Muscle Rubs: Use For Pain Is Questionable, Review Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/1d7RQtJXdPs/090707201112.htm
There is not enough evidence to support using gels and creams containing rubefacients for chronic and acute pain, according to a systematic review. Rubefacients cause irritation and reddening of the skin, due to increased blood flow. The review focused on formulations containing salicylates, which are widely prescribed or sold over the counter as topical treatments for sports injuries and muscle pain.
Thu, 9 Jul 09
Finding Fear: Neuroscientists Locate Where It Is Stored In The Brain
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ZGcEF-mknKc/090707093753.htm
Neuroscientists using an imaging technique that enabled them to trace the process of neural activation in the brain have pinpointed the neurons where fear conditioning is encoded.
Thu, 9 Jul 09
Human Sperm Created From Embryonic Stem Cells
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YTkUOH9S6sc/090708073843.htm
Researchers have created human sperm from embryonic stem cells. The embryonic stem cells were cultured in a new medium containing vitamin A derivative (retinoic acid), using a new technique.
Thu, 9 Jul 09
Genetically Engineered Mice Yield Clues To 'Knocking Out' Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3yrpzwJ4928/090701102956.htm
Researchers have demonstrated that deleting two genes in mice responsible for repairing DNA strands damaged by oxidation leads to several types of tumors, providing additional evidence that such stress contributes to the development of cancer. The work may lead to the development of new measurement methods and reference materials for accurate and reproducible assessments of DNA damage and repair.
Thu, 9 Jul 09
Metabolic Factors May Play A Role In Risk For Breast Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/2Ger-DBxwoA/090630132001.htm
Physiological changes associated with the metabolic syndrome may play a role in the risk of postmenopausal breast cancer, according to a new study.
Thu, 9 Jul 09
Immobilized Microbes Can Break Down Potentially Harmful Phthalates
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VtdBIBJGk5w/090619112325.htm
Immobilized microbes can break down potentially harmful phthalates, according to researchers writing in the International Journal of Environment and Pollution. The microbes might be used to treat industrial waste water and so prevent these materials from entering the environment.
Thu, 9 Jul 09
Debate Over Repressed Memories
http://feeds.sciencedaily.com/~r/sciencedaily/~3/3Y-ZmyM0j-I/090707170958.htm
Two years after two Harvard psychiatrists published a controversial paper on repressed memory, a Brown University political scientist is engaged in an academic dispute over that paper's integrity and its implications. At issue is how to prove whether the memories of trauma, such as childhood sexual abuse, can be repressed and then resurface later in life.
Wed, 8 Jul 09
Mummified Dinosaur Skin Yields Up New Secrets
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oHQr8WpKPIM/090707203728.htm
Scientists have identified preserved organic molecules in the skin of a dinosaur that died around 66-million years ago.
Wed, 8 Jul 09
Scientists Reprogram Clearly Defined Adult Cells Into Pluripotent Stem Cells -- Directly And Without Viruses
http://feeds.sciencedaily.com/~r/sciencedaily/~3/AM75B22X_SI/090707131824.htm
Researchers have succeeded for the first time in reprogramming clearly defined adult cells into pluripotent stem cells -- directly and without viruses.
Wed, 8 Jul 09
Quadriplegics Can Operate Powered Wheelchair With Tongue Drive System
http://feeds.sciencedaily.com/~r/sciencedaily/~3/BUFWTVCkedQ/090706112906.htm
An assistive technology that enables individuals to maneuver a powered wheelchair or control a mouse cursor using simple tongue movements can be operated by individuals with high-level spinal cord injuries, according to the results of a recently completed clinical trial.
Wed, 8 Jul 09
Dogs, Humans, Put Heads Together To Find Cure For Brain Cancer
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Rs3GHu9sUhU/090706134058.htm
Pinpointing the genes involved in human brain cancer can be like looking for a needle in a haystack, and sometimes the needle you find may not be the right one.
Wed, 8 Jul 09
Computerized Face Recognition Software Can Rapidly See Through Disguises
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XYxQV50XONM/090707111709.htm
A rapid but superior method for computerized face recognition could revolutionize security systems especially if it can see through disguises. New software solves the variation problems caused by different light levels and shadows, viewing direction, pose, and facial expressions. It can even see through certain types of disguises such as facial hair and glasses.
Wed, 8 Jul 09
Financial Crisis Increases Suicides And Homicides, Study Finds
http://feeds.sciencedaily.com/~r/sciencedaily/~3/bjzra2MaBRo/090707201211.htm
Market crashes could lead to rises in homicides and suicides, unless governments invest in labor market protections, according to a new study.
Wed, 8 Jul 09
US-Mexico Border Wall Could Threaten Wildlife Species
http://feeds.sciencedaily.com/~r/sciencedaily/~3/0aB2fCWbyk4/090707171002.htm
A 700-mile security wall under construction along the United States' border with Mexico could significantly alter the movement and "connectivity" of wildlife, biologists say, and the animals' potential isolation is a threat to populations of some species.
Wed, 8 Jul 09
Single Gene Mutation Responsible For 'Catastrophic Epilepsy'
http://feeds.sciencedaily.com/~r/sciencedaily/~3/ntm8kufIozw/090707183136.htm
Catastrophic epilepsy -- characterized by severe muscle spasms, persistent seizures, mental retardation and sometimes autism -- results from a mutation in a single gene, researchers report.
Wed, 8 Jul 09
Fathers Spend More Time With Children Who Resemble Them, Study Suggests
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GMNz8bFEmn0/090618180334.htm
Darwin's theory of evolution predicts that men will take more care of children that look like them. Scientists have now verified this prediction.
Wed, 8 Jul 09
New MRI Technique Could Mean Fewer Breast Biopsies In High-risk Women
http://feeds.sciencedaily.com/~r/sciencedaily/~3/r-LCrnDoGXc/090629132156.htm
Biomedical engineers have developed a method that, applied in MRI scans of the breast, could spare some women with increased breast cancer risk the pain and stress of having to endure a biopsy of a questionable lump or lesion.
Wed, 8 Jul 09
Device Makes Objects Invisible In Certain Light Conditions
http://feeds.sciencedaily.com/~r/sciencedaily/~3/IjQD1InJUig/090707094822.htm
Scientists have designed a device, called a dc metamaterial, which makes objects invisible under certain light – very low frequency electromagnetic waves - by making the inside of the magnetic field zero but not altering the exterior field. The device, which up to date has only been studied in theoretical works, thus acts as an invisibility cloak, making the object completely undetectable to these waves.
Wed, 8 Jul 09
Post-traumatic Stress Disorder: Psychological Treatments May Not Prevent PTSD
http://feeds.sciencedaily.com/~r/sciencedaily/~3/EKT8vXbd5uM/090707201130.htm
Psychological interventions intended to prevent the development of post-traumatic stress disorder in the early stages after a traumatic experience have not been shown to be effective, researchers have concluded.
Wed, 8 Jul 09
Robo-bats With Metal Muscles May Be Next Generation Of Remote Control Flyers
http://feeds.sciencedaily.com/~r/sciencedaily/~3/XXcXmAnhxvk/090707093625.htm
Tiny flying machines can be used for everything from indoor surveillance to exploring collapsed buildings, but simply making smaller versions of planes and helicopters doesn't work very well. Instead, researchers are mimicking nature's small flyers -- and developing robotic bats that offer increased maneuverability and performance.
Wed, 8 Jul 09
Cholesterol-regulating Genes Identified
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qHuZ-ULfTpY/090707131820.htm
Scientists have come a step closer to understanding how cholesterol levels are regulated. Researchers have identified 20 genes that are involved in this process. Besides giving scientists a better idea of where to look to uncover the mechanisms that ensure cholesterol balance is maintained, the discovery could lead to new treatments for cholesterol-related diseases.
Wed, 8 Jul 09
Protecting Polar Bears With New Tracking Methods
http://feeds.sciencedaily.com/~r/sciencedaily/~3/SaINoxkAwow/090618151333.htm
A new approach to tracking polar bears will shed more light on the potentially endangered Arctic animal and help boost the economy of Canada's north.
Wed, 8 Jul 09
Gene Expression Findings A Step Toward Better Classification And Treatment Of Juvenile Arthritis
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HeyWXeuwm_Q/090629132154.htm
Scientists have discovered gene expression differences that could lead to better ways to classify, predict outcome, and treat juvenile idiopathic arthritis. Eventually such findings could enable doctors to target more aggressive treatment to children at risk of more severe arthritis, while those likely to have milder disease could be spared the stronger treatments that carry a greater risk of side effects.
Wed, 8 Jul 09
How Strain At Grain Boundaries Suppresses High-temperature Superconductivity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/R_FU-uVs_vE/090617123439.htm
Researchers have discovered that a reduction in mechanical strain at the boundaries of crystal grains can significantly improve the performance of high-temperature superconductors.
Wed, 8 Jul 09
Non-drug Interventions May Comfort Children Having An Anesthetic
http://feeds.sciencedaily.com/~r/sciencedaily/~3/qRPbegOmsFA/090707201123.htm
Parental acupuncture, clown doctors, hypnotherapy, low sensory stimulation and hand-held video games are promising non-drug interventions that are likely to help reduce children's anxiety during the onset of their anesthetic.
Wed, 8 Jul 09
Scientists Closer To Developing Salt-tolerant Crops
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vHE6fCZfTxw/090707142138.htm
Scientists have developed salt-tolerant plants using a new type of genetic modification, bringing salt-tolerant cereal crops a step closer to reality.
Wed, 8 Jul 09
Targeting New Pancreatitis Treatments
http://feeds.sciencedaily.com/~r/sciencedaily/~3/9KG83nl-ps8/090629081800.htm
Scientists have identified a gene that could help in targeting new treatments for alcohol-related pancreatitis.
Wed, 8 Jul 09
Massive Imbalances Found In Global Fertilizer Use, Resulting In Malnourishment In Some Areas And Serious Pollution Problems In Others
http://feeds.sciencedaily.com/~r/sciencedaily/~3/hBum4kPzh5s/090618144000.htm
A scientific study of three corn-growing regions of the world documents massive imbalances in nitrogen fertilizer use, resulting in malnourishment in some areas and serious pollution problems in others.
Wed, 8 Jul 09
Ovarian Transplantation: New Technique Gives Greatly Improved Results In This Delicate Operation
http://feeds.sciencedaily.com/~r/sciencedaily/~3/vGEiOj0vb2E/090629081455.htm
Ultra-fast freezing of ovarian tissue from women who have lost their fertility as a result of cancer treatment can lead to it being used in transplants with the same success rate as fresh tissue, according to new research. Scientists said that freezing tissue by the vitrification method, which avoids ice formation, meant that oocyte (egg) viability was almost identical with that seen in fresh oocytes.
Wed, 8 Jul 09
Ozone Depletes Oil Seed Rape Productivity
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_boAiKVAHyU/090629081122.htm
With rising ozone levels scientists have found that high ozone conditions cause a 30 percent decrease in yield and an increase in the concentration of a group of compounds with toxic effects to livestock, but anti
