ScienceDaily: Latest Science News |
| Missing Planets Attest To Destructive Power Of Stars' Tides Posted: 03 May 2009 02:00 PM PDT Astronomers have found hundreds of extrasolar planets in the last two decades, and new research indicates they might have found even more except for one thing -- some planets have fallen into their stars and simply no longer exist. |
| Chemical Found In Medical Devices Impairs Heart Function Posted: 03 May 2009 02:00 PM PDT A chemical commonly used in the production of such medical plastic devices as intravenous bags and catheters can impair heart function in rats. |
| Flu Vaccine Given In Microneedle Skin Patches Proves Effective In Mice Posted: 03 May 2009 02:00 PM PDT Flu vaccine delivered through skin patches containing microneedles has proven just as effective at preventing influenza in mice as intramuscular, hypodermic flu immunization. A team of researchers believes the new microneedle skin patch method of delivering flu vaccine could improve overall seasonal vaccination coverage in people because of decreased pain, increased convenience, lower cost and simpler logistics over conventional hypodermic immunization. |
| Anti-aging Cosmetic Reduced Wrinkles In Clinical Trial Posted: 03 May 2009 02:00 PM PDT Scientists testing a cosmetic anti-aging product sold commercially have shown it can clinically reduce wrinkles and improve the appearance of skin damaged by everyday exposure to sunlight. |
| Posted: 03 May 2009 02:00 PM PDT A new study documents for the first time the process in which increased mercury emissions from human sources across the globe, and in particular from Asia, make their way into the North Pacific Ocean and as a result contaminate tuna and other seafood. Because much of the mercury that enters the North Pacific comes from the atmosphere, scientists have predicted an additional 50 percent increase in mercury in the Pacific by 2050 if mercury emission rates continue as projected. |
| Oxytocin: Love Potion #1? Human Hormone Increases Positive Communication Between Couples Posted: 03 May 2009 02:00 PM PDT Relationships are difficult and most of us probably think at some point that communicating positively with our partner when discussing stressful issues, like home finances, is an impossible task. What if there was a safe way to take the "edge" off these discussions? The biology of human social relationships is just beginning to emerge as groundbreaking research on social cognition conducted in animals is now informing research in humans. |
| Dietary Fats Trigger Long-term Memory Formation Posted: 03 May 2009 08:00 AM PDT Having strong memories of that rich, delicious dessert you ate last night? If so, you shouldn't feel like a glutton. It's only natural. This study points to new approaches for treating obesity and eating disorders. |
| Magnesium Detected In MESSENGER Flyby Of Mercury Posted: 03 May 2009 08:00 AM PDT NASA's MESSENGER spacecraft served up another curveball after a second flyby of the hot inner planet Oct. 6 detected magnesium -- an element created inside exploding stars and which is found in many medicine cabinets on Earth -- clumped in the tenuous atmosphere of the planet. |
| Novel Role Of Protein In Generating Amyloid-beta Peptide Posted: 03 May 2009 08:00 AM PDT A defining hallmark of Alzheimer's disease is the accumulation of the amyloid-beta protein, otherwise known as "senile plaques," in the brain's cortex and hippocampus, where memory consolidation occurs. Researchers have identified a novel protein which, when over-expressed, leads to a dramatic increase in the generation of the amyloid-beta protein. |
| Tiny Lasers Plug The 'Green Gap' Posted: 03 May 2009 08:00 AM PDT Compact lasers which can work in formerly inaccessible parts of the spectrum and are suitable for mass production are now within reach. |
| Genetic Risk For Anxiety Does Not Have To Be Destiny Posted: 03 May 2009 08:00 AM PDT A growing body of basic animal research and studies of abused and neglected children provide a strong basis of support for the hypothesis that individuals with particular genotypes are at greater risk for depression, anxiety disorders, and problems with the abuse of alcohol and other substances. These gene-by-environment interactions are so powerful that some might assume that these genotypes identify people who are predestined to negative life outcomes. |
| World's Fastest Camera Relies On Entirely New Type Of Imaging Posted: 03 May 2009 02:00 AM PDT Scientists have developed an entirely new approach to imaging that does not require a CCD or CMOS camera. Building on more than a decade of research on photonic time stretch, a technique for capturing illusive events, the team has demonstrated a continuous running camera that captures images at 6 million frames per second, roughly a thousand times faster than conventional cameras. |
| Mother-daughter Breast Density Study Points Way To Earlier Cancer Risk Assessment Posted: 03 May 2009 02:00 AM PDT A unique mother-daughter study that used magnetic resonance to measure breast density in younger women shows that one's percent of breast water could be linked to the risk of breast cancer in middle age and older. |
| Posted: 03 May 2009 02:00 AM PDT Physicists have harnessed the phenomenon, "spooky action at a distance," to shed light on another unusual and previously difficult aspect of quantum physics -- that of distinguishing between two similar quantum devices. |
| Two Causes For Bowel Disease In Infants Suggested By New Research Posted: 03 May 2009 02:00 AM PDT New research is helping physicians unravel the cause of a deadly and mysterious bowel disease that strikes medically fragile newborn babies. The findings could lead to a better understanding of the disease and its medical management, and also shed light on the causes of sepsis, a major killer of children and young adults. |
| Cementless Hip Implants Are Durable For At Least 20 Years Posted: 03 May 2009 02:00 AM PDT Despite the common perception that total hip replacements last about 10 years, researchers have found that the devices are extremely durable, even 20 years after surgery. |
| New Insight Into Addictive Behavior Offers Treatment Hope Posted: 03 May 2009 02:00 AM PDT Addictive behavior is determined by conscious, rapid thought processes, not necessarily by the content of visual stimuli as previously thought. |
| African Genetics Study Revealing Origins, Migration And 'Startling Diversity' Of African Peoples Posted: 02 May 2009 08:00 PM PDT Researchers have released the largest-ever study of African genetic data -- more than four million genotypes -- providing a library of new information on the continent which is thought to be the source of the oldest settlements of modern humans. The study demonstrates startling diversity on the continent, shared ancestry among geographically diverse groups and traces the origins of Africans and African-Americans. |
| Key To Blood Cell Development Could Lead To New Treatments For Cancer Posted: 02 May 2009 08:00 PM PDT Scientists have made the world-first discovery a 'pied piper' molecule within blood cells, called Liar, that leads other molecules into the nucleus of the cell, and could offer a key in treating prostate, breast and colon cancers as well as leukemia. |
| Stem Cells For The Damaged Heart: Key Factors In Heart Cell Creation Identified Posted: 02 May 2009 08:00 PM PDT Scientists have identified for the first time key genetic factors that drive the process of generating new heart cells. The discovery provides important new directions on how stem cells may be used to repair damaged hearts. |
| New Mediator Of Smoking Recruits Posted: 02 May 2009 08:00 PM PDT New research suggests that smoking increases the production of osteopontin in the lungs, which contributes to the development of smoking-related lung disease. |
| SUMO Protein Guides Chromatin Remodeler To Suppress Genes Posted: 02 May 2009 08:00 PM PDT Researchers have uncovered a mechanism involved in ensuring that only certain genes are expressed in a specific cell type. This discovery advances the understanding of cancer and neurodegenerative diseases such as Alzheimer's. |
| If Started Early, HIV Treatment Reduces Death Rates Toward Background Levels In African Countries Posted: 02 May 2009 08:00 PM PDT Mortality rates of people starting HIV treatment in four African countries approach those of the general population over time, provided that treatment is started before the immune system has been severely damaged, according to new research. |
| Cave Activity Discouraged To Help Protect Bats From Deadly White-nose Syndrome Posted: 01 May 2009 09:00 PM PDT White-nose syndrome, a wildlife crisis of unprecedented proportions, has killed hundreds of thousands of bats from Vermont to West Virginia and continues unchecked. Now, the U.S. Fish and Wildlife Service is asking those who use caves where bats hibernate - called hibernacula - to take extra precautions and to curtail activities to help prevent the spread of WNS. |
| Super-sensors Made To Discover What Happened In The First Trillionth Of A Second After The Big Bang Posted: 01 May 2009 09:00 PM PDT What happened in the first trillionth of a trillionth of a trillionth of a second after the Big Bang? Super-sensitive microwave detectors may soon help scientists find out. |
| Women Live Longer, Not Better, Largely Because Of Obesity And Arthritis Posted: 01 May 2009 09:00 PM PDT Obesity and arthritis that take root during early and middle age significantly contribute to women's decreased quality of life during their senior years, according to researchers. |
| Posted: 01 May 2009 09:00 PM PDT Cod bycatch was at least 70 per cent higher than target levels on the southern Grand Banks near Canada, holding back recovery of one of the world's best known fisheries following its spectacular collapse and closure in the early 1990s. |
| Early Detection Of Lung Cancer Posted: 01 May 2009 09:00 PM PDT New data from several studies are useful in evaluating new techniques for early diagnosis and treatment of lung cancer. |
| Climate Change: How The '2 Degrees Celsius Target' Can Be Reached Posted: 01 May 2009 09:00 PM PDT If carbon dioxide emissions are halved by 2050 compared to 1990, global warming can be stabilized below two degrees. |
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