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| Pigs Bred With Cystic Fibrosis Provide Model To Mimic Human Disease Posted: 26 Sep 2008 01:00 PM CDT Cystic fibrosis continues to be a lethal disease for humans despite the identification of the problematic gene two decades ago. Many humans born with CF -- the most common genetic disease in Caucasians -- often die because of a lung disease developed later. Scientists have been unable to develop an animal model that develops the fatal lung disease. Now, one researcher is producing pigs born with cystic fibrosis that mimic the exact symptoms of a newborn with CF.  |
| Broken Arm? Women Recover Muscle Strength More Slowly Than Men, After Cast Is Removed Posted: 26 Sep 2008 01:00 PM CDT Women are four times more likely than men to experience a broken forearm and require a cast (immobilization). To examine if casting had an effect on gender, researchers immobilized a limb from among volunteers of both sexes. They found men were able to regain 99 percent of their strength within a week of removing the cast, but women's strength was still 30 percent lower than before the cast was applied.  |
| 100-year-old Engineering Problem Solved: Insights On Fluid Flow Could Impact Fuel Efficiency Posted: 26 Sep 2008 01:00 PM CDT As a car accelerates up and down a hill then slows to follow a hairpin turn, the airflow around it cannot keep up and detaches from the vehicle. This aerodynamic separation creates additional drag that slows the car and forces the engine to work harder. The same phenomenon affects airplanes, boats, submarines, and even your golf ball.  |
| Low Sperm Count May Be Associated With Prenatal Testosterone Excess Posted: 26 Sep 2008 01:00 PM CDT Exposure to an excess of sexual steroids, like testosterone, during fetal development may be a potential risk factor for low sperm count and motility, according to a new study.  |
| Detecting Human Activities Through Barriers: Doppler Radar Signals Become Animation Posted: 26 Sep 2008 01:00 PM CDT Scientists are one step closer to making x-ray vision a reality. They are perfecting radar systems that can detect human activities through barriers and convert the signals to virtual renderings similar to that of a video game.  |
| Posted: 26 Sep 2008 01:00 PM CDT New research could change the way we view math difficulties and how we assist children who face those problems. Scientists are using brain imaging to understand how children develop math skills, and what kind of brain development is associated with those skills.  |
| Oldest Known Rocks On Earth Discovered: 4.28 Billion Years Old Posted: 26 Sep 2008 10:00 AM CDT The discovery of rocks as old as 4.28 billion years pushes back age of most ancient remnant of Earth's crust by 300 million years. Researchers have discovered the oldest rocks on Earth -- a discovery which sheds more light on our planet's mysterious beginnings. These rocks, known as "faux-amphibolites," may be remnants of a portion of Earth's primordial crust -- the first crust that formed at the surface of our planet.  |
| New Approach To Gene Therapy May Shrink Brain Tumors, Prevent Their Spread Posted: 26 Sep 2008 10:00 AM CDT Researchers are investigating a new approach to gene therapy for brain tumors -- delivering a cancer-fighting gene to normal brain tissue around the tumor to keep it from spreading. They have found that inducing mouse brain cells to secrete human interferon-beta suppressed and eliminated growth of human glioblastoma cells implanted nearby.  |
| Bats Pick Up Rustling Sounds Against Highway Background Noise Posted: 26 Sep 2008 10:00 AM CDT When bats go hunting by listening for faint rustling sounds made by their quarry on a quiet night they don't have any problems. But what happens when a bat goes foraging next to a noisy highway? Can they still hear the faint sounds?  |
| Differences Between People And Animals On Calorie Restriction Posted: 26 Sep 2008 10:00 AM CDT Calorie restriction, a diet that is low in calories and high in nutrition, may not be as effective at extending life in people as it is in rodents, according to scientists.  |
| Iron-moving Malfunction May Underlie Neurodegenerative Diseases, Aging Posted: 26 Sep 2008 10:00 AM CDT A glitch in the ability to move iron around in cells may underlie a disease known as Type IV mucolipidosis and the suite of symptoms -- mental retardation, poor vision and diminished motor abilities -- that accompany it, new research shows.  |
| Avid Online Role-players Do Not Fit Gamer Stereotypes Posted: 26 Sep 2008 10:00 AM CDT Players of online role-playing games tend to be older and fitter than suggested by popular stereotypes, survey finds. Older players also log more playing time, and women tend to be more committed to the game.  |
| Puzzling Property Of Night-shining Clouds At Edge Of Space Explained Posted: 26 Sep 2008 07:00 AM CDT An explanation for a strange property of noctilucent clouds -- thin, wispy clouds hovering at the edge of space at 85 km altitude -- has been proposed by an experimental plasma physicist, possibly laying to rest a decades-long mystery.  |
| Fishy Diet In Early Infancy Cuts Eczema Risk Posted: 26 Sep 2008 07:00 AM CDT An infant diet that includes fish before the age of 9 months curbs the risk of developing eczema, indicates research in the Archives of Disease in Childhood.  |
| Genetic Testing Anywhere: Micro-sizes Hand-held 'Lab-on-a-chip' Devices Under Development Posted: 26 Sep 2008 07:00 AM CDT Using new "lab on a chip" technology, chemists hope to create a hand-held device that may eventually allow physicians, crime scene investigators, pharmacists, even the general public to quickly and inexpensively conduct DNA tests from almost anywhere, without need for a complex and expensive central laboratory.  |
| Mapping The Neuron-behavior Link In Rett Syndrome Posted: 26 Sep 2008 07:00 AM CDT A link between certain behaviors and the lack of the protein associated with Rett Syndrome -- a devastating autism spectrum disorder -- demonstrates the importance of MeCP2 (the protein) and reveals never-before recognized functions associated with aggression and obesity, said researchers at Baylor College of Medicine in the journal Neuron.  |
| New Technique Sees Into Tissue At Greater Depth, Resolution Posted: 26 Sep 2008 07:00 AM CDT By coupling a kicked-up version of microscopy with miniscule particles of gold, Duke University scientists are now able to peer so deep into living tissue that they can see molecules interacting.  |
| Economist Says Current Financial Crisis Is First And Foremost A Crisis Of Confidence Posted: 26 Sep 2008 07:00 AM CDT The current financial crisis is first and foremost a crisis of confidence. The tip of the iceberg may be the subprime mortgage crisis and its immediate aftermath, but the roots of the crisis have to do with unsustainable dual deficits (fiscal and trade) that have resulted in gargantuan levels of US debt, both private and public.  |
| New Nanoscale Process Will Help Computers Run Faster And More Efficiently Posted: 26 Sep 2008 04:00 AM CDT Smaller. Faster. More efficient. These are the qualities that drive science and industry to create new nanoscale structures that will help to speed up computers. Scientists have made a major contribution to this field by designing a new nanotechnology that will ultimately help make computers smaller, faster, and more efficient.  |
| Cochlear Implants In Children A Safe Procedure, Study Suggests Posted: 26 Sep 2008 04:00 AM CDT In the six decades since French and American surgeons implanted the first cochlear hearing devices, the procedure in children has become reliable, safe, and relatively free of severe complications, according to new research.  |
| Are Fires More Important Than Rain For The Savannah Ecosystem? Posted: 26 Sep 2008 04:00 AM CDT Natural grass fires are evidently more important for the ecology of savannahs than has previously been assumed. This is the finding of a study carried out in Etosha National Park in the north of Namibia. It is the first study to have investigated the complex interplay of the factors fire, competition, moisture and seed availability in relation to a grass species.  |
| Posted: 26 Sep 2008 04:00 AM CDT Young women with DCIS, a common form of early breast cancer that arises in and is confined to the mammary ducts, are presumed more likely to have recurrences than older women with the same diagnosis. But a new study from Fox Chase Cancer Center rebuffs this conventional thinking.  |
| New Protein Encyclopedia Looks At Life As It Is Organized In Body, At Molecular Level Posted: 26 Sep 2008 04:00 AM CDT This new protein encyclopedia looks at life as it is really organized in our body at the molecular level.  |
| Coming Soon: Self-guided, Computer-based Depression Treatment Posted: 26 Sep 2008 04:00 AM CDT Depression is a problem that could affect astronauts during long-duration spaceflights. Scientists are now developing a self-guided, multimedia program that will assist astronauts in recognizing and effectively managing depression and other psychosocial problems. In addition to protecting astronaut health, the system could have applications for health care on Earth, especially in rural locations where access to professional help is limited.  |
| Growing Up Too Fast May Mean Dying Young In Honey Bees Posted: 26 Sep 2008 01:00 AM CDT New study shows that transitions to aerobically-expensive behaviors in organisms living free in nature can have important consequences affecting the pace of aging.  |
| Antioxidant Deficiency Linked To Pulmonary Hypertension Posted: 26 Sep 2008 01:00 AM CDT A recent study shows that a loss of antioxidants in the endothelial cells that line blood vessels in the lungs contributes to the loss of vasodilator effects and, ultimately, to the development of pulmonary hypertension. The findings appear in Clinical and Translational Science.  |
| Better Understanding Of Blood Vessel Constrictor Needed To Harness Its Power For Patients Posted: 26 Sep 2008 01:00 AM CDT To harness endothelin-1's power to constrict blood vessels and help patients manage high blood pressure or heart failure, scientists must learn more about how endothelin functions naturally and in disease states, says a Medical College of Georgia researcher.  |
| Increasing General Practice Opening Hours Could Prevent Recurrent Strokes Posted: 26 Sep 2008 01:00 AM CDT Increasing general practice opening hours would improve the opportunity for assessment and urgent referral to specialist care of patients with a transient ischaemic attack or minor stroke, which could prevent over 500 recurrent strokes a year in England alone, concludes a new study.  |
| Posted: 26 Sep 2008 01:00 AM CDT Improved agricultural productivity can help developing countries reduce their reliance on international emergency food relief following natural disasters.  |
| Hospital Residents Report Patient-handoff Problems Common, Can Lead To Patient Harm Posted: 26 Sep 2008 01:00 AM CDT A significant percentage of resident physicians report that patient handoffs -- transfer of responsibility for a hospitalized patient from one resident to another -- contributed to incidents in which harm was done to patients. A new study identifies situations in which problematic handoffs are more likely to occur and factors that may interfere with the smooth transfer of crucial information.  |
| Plants In Forest Emit Aspirin Chemical To Deal With Stress; Discovery May Help Agriculture Posted: 25 Sep 2008 10:00 PM CDT Plants in a forest respond to stress by producing a chemical form of aspirin, scientists have discovered. The finding opens up new avenues of research into the behavior of plants, and it has the potential to give farmers an early warning signal about crops that are failing.  |
| Posted: 25 Sep 2008 10:00 PM CDT American children are approximately three times more likely to be prescribed psychotropic medication than children in Europe. A new study published in the journal Child and Adolescent Psychiatry and Mental Health claims that the differences may be accounted for by regulatory practices and cultural beliefs about the role of medication in emotional and behavioral problems.  |
| Hawaiian Scientists Take Their Test Tubes Surfing Posted: 25 Sep 2008 10:00 PM CDT Chemists have traded their white coats for swim shorts at the University of Hawaii, Honolulu -- they've shunned the lab so they can swim out to the breakers with a test-tube built into a boogie-board.  |
| New Laboratory Technique Improves Success In 'Highly Sensitized' Kidney Transplants Posted: 25 Sep 2008 10:00 PM CDT Kidney transplant specialists have developed innovative laboratory techniques to improve opportunities and success rates for kidney transplant candidates who are at high risk of organ rejection because of previous exposure to donor antigens, according to a new article.  |
| New Technology Paves The Way For Future Of Identifying Proteins Inside Cells Posted: 25 Sep 2008 10:00 PM CDT A new technology enables scientists to identify proteins by making a map of the energy flow inside the protein.  |
| Emotional People Likely To Move Away, But Not Likely To Move Often Posted: 25 Sep 2008 10:00 PM CDT The results suggest that personality traits determine not only where people relocate to, but also how often they move and how far away they move. People who are very emotional are more likely to move away from home, but do not migrate very far and do not move very often. People with very social personalities are more inclined to leave rural settings for urban areas and are more likely to migrate over long distances.  |
| NASA Identifies Carbon-rich Molecules In Meteors As The ‘Origin Of Life’ Posted: 25 Sep 2008 07:00 PM CDT Tons, perhaps tens of tons, of carbon molecules in dust particles and meteorites fall on Earth daily. Meteorites are especially valuable to astronomers because they provide relatively big chunks of carbon molecules that are easily analyzed in the laboratory. In the past few years, researchers have noticed that most meteorite carbon are molecules called polycyclic aromatic hydrocarbons (PAHs), which are very stable compounds and are survivors.  |
| Bladder Cancer Detected Via Amplified Gene In Cells Found In Urine Posted: 25 Sep 2008 07:00 PM CDT Counting the copies of a specific gene in cells gathered from a urine sample may provide a simple, noninvasive way to detect bladder cancer, researchers report in the Journal of the National Cancer Institute.  |
| Hubble Spies Galaxy Silhouettes Posted: 25 Sep 2008 07:00 PM CDT NASA's Hubble Space Telescope has captured a rare alignment between two spiral galaxies. The outer rim of a small, foreground galaxy is silhouetted in front of a larger background galaxy. Skeletal tentacles of dust can be seen extending beyond the small galaxy's disk of starlight.  |
| Aspirin And Atherosclerosis: Mechanism Uncovered Posted: 25 Sep 2008 07:00 PM CDT Researchers have uncovered the mechanism that may explain aspirin's ability to prevent arterial plaque buildup and atherosclerosis.  |
| Researcher Working On Destruction Of Chemical Weapons Posted: 25 Sep 2008 07:00 PM CDT America's war on terror includes fighting the dark side of deadly chemical agents, chemists are helping with the fight by developing an enzyme that might neutralize one such chemical agent, the organophosphates.  |
| What To Do With Leftover Embryos In Fertility Clinics? Posted: 25 Sep 2008 07:00 PM CDT The majority of infertility patients are in favor of using left-over embryos for stem cell research and would also support selling left-over embryos to other couples, according to a recent survey.  |
| America's Smallest Dinosaur Uncovered Posted: 25 Sep 2008 04:00 PM CDT An unusual breed of dinosaur that was the size of a chicken, ran on two legs and scoured the ancient forest floor for termites is the smallest dinosaur species found in North America, according to a researcher who analyzed bones found during the excavation of an ancient bone bed near Red Deer, Alberta, in 2002.  |
| Epilepsy, Autism, Schizophrenia: Master Switch That 'Balances The Brain' Found Posted: 25 Sep 2008 04:00 PM CDT Neuroscientists have identified the first known "master switch" to orchestrate the formation and maintenance of inhibitory synapses on neurons, essential for proper brain function. The switch, called Npas4, regulates more than 200 genes that calm over-excited cells, restoring a balance that is thought to go askew in neurologic disorders like epilepsy, autism and schizophrenia. Inhibitory connections are also required to launch critical periods, when the brain can readily rewire and learn.  |
| Unique Dark-energy Probe To Measure More Than A Million Galaxies And Quasars Posted: 25 Sep 2008 04:00 PM CDT A unique dark-energy probe called BOSS, the Baryon Oscillation Spectroscopic Survey, is a crucial component of the Sloan Digital Sky Survey's third program. Led by physicists at the US Department of Energy's Lawrence Berkeley National Laboratory, BOSS will use the Sloan 2.5-meter, wide-field telescope in New Mexico to collect and measure more than a million galaxies and quasars.  |
| Statins Increase Risk Of Postoperative Delirium In Elderly Patients, Study Suggests Posted: 25 Sep 2008 04:00 PM CDT The use of statins is associated with a 28 percent increased risk of postoperative delirium in elderly patients, scientists found in a retrospective cohort analysis involving more than 280 000 patients.  |
| Study Merges Decade Of Arctic Data As Ice Collapses Into The Sea Posted: 25 Sep 2008 04:00 PM CDT The Markham Ice Shelf, a massive 19-square-mile platform of ice, broke away from Ellesmere Island in early August and is adrift in the Arctic Ocean. More than half of the nearby Serson Ice Shelf -- about 47 square miles -- also recently broke away into the sea.  |
| Posted: 25 Sep 2008 04:00 PM CDT According to a new analysis, neglected tropical diseases as a group may have surpassed HIV/AIDS, tuberculosis and malaria as the most prevalent infectious diseases in Latin America and the Caribbean.  |
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