Minggu, 21 November 2010

ScienceDaily Top Science Headlines

for Sunday, November 21, 2010

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Hubble captures new star birth in an ancient galaxy (November 20, 2010) -- Elliptical galaxies were once thought to be aging star cities whose star-making heyday was billions of years ago. But new observations with NASA's Hubble Space Telescope are helping to show that elliptical galaxies still have some youthful vigor left, thanks to encounters with smaller galaxies. ... > full story

Gene links to anorexia identified: Largest genetic study of the eating disorder detects common and rare variants (November 20, 2010) -- Scientists have identified both common and rare gene variants associated with the eating disorder anorexia nervosa. In the largest genetic study of this psychiatric disorder, the researchers found intriguing clues to genes they are subjecting to further investigation, including genes active in neuronal signaling and in shaping interconnections among brain cells. ... > full story

Orangutans count on stats for survival (November 20, 2010) -- Orangutans threatened with extinction could be brought back from the brink with help from an Australian statistician, who is part of a study to guide efforts for saving the Indonesian primate. ... > full story

Personalized medicine: Tumor analysis reveals new opportunities for existing cancer drugs (November 20, 2010) -- Targeted cancer therapies such as trastuzumab (Herceptin), gefitinib (Iressa) and erlotinib (Tarceva) could be used to treat a wider range of cancers than previously thought, according to new research. ... > full story

Microorganisms in the ground don’t slack off in winter (November 20, 2010) -- It is known that soil microorganisms can maintain some activity during the cold winter months. Scientist have now shown that the microorganisms in frozen soils are much more viable than previously anticipated and also has large potential for growth. ... > full story

Physicists demonstrate a four-fold quantum memory (November 20, 2010) -- Researchers have demonstrated quantum entanglement for a quantum state stored in four spatially distinct atomic memories. ... > full story

Designing more effective anti-HIV antibodies (November 20, 2010) -- Although people infected with HIV produce many antibodies against the protein encapsulating the virus, most of these antibodies are strangely ineffective at fighting the disease. A new study suggests why some of the most common of these antibodies don't work: they target the protein in a form it takes after the virus has already invaded the cell, when it's too late, report researchers. ... > full story

Cholesterol-lowering statins boost bacteria-killing cells (November 20, 2010) -- Widely prescribed for their cholesterol-lowering properties, recent clinical research indicates that statins can produce a second, significant health benefit: lowering the risk of severe bacterial infections such as pneumonia and sepsis. Scientists now describe how statins activate the bacterial killing properties of white blood cells. ... > full story

Reports claiming amyotrophic lateral sclerosis caused by head trauma lacks scientific validation, review finds (November 20, 2010) -- A recent study suggesting that amyotrophic lateral sclerosis (ALS) may be attributed to "repetitive head trauma experienced in collision sports" lacks scientific epidemiological evidence to support this claim. In a review of the 12-patient study, several experts specializing in motor neuron diseases challenge the findings as entirely pathological and without clinical merit. ... > full story

Mathematical problems recast as physics questions, provide new tools for old quandaries (November 20, 2010) -- A scientist with an interdisciplinary bent has taken two well-known problems in mathematics and reformulated them as a physics question, offering new tools to solve challenges relevant to a host of subjects ranging from improving data compression to detecting gravitational waves. ... > full story

Graphic images influence intentions to quit smoking (November 20, 2010) -- Marketing researchers surveyed more than 500 U.S. and Canadian smokers and found that the highly graphic images of the negative consequences of smoking have the greatest impact on smokers' intentions to quit. The most graphic images, such as those showing severe mouth diseases, including disfigured, blackened and cancerous tissue, evoked fear about the consequences of smoking and thus influenced consumer intentions to quit. ... > full story

In fending off diseases, plants and animals are much the same, research shows (November 20, 2010) -- Contrary to long-held beliefs, plants and animals have developed remarkably similar mechanisms for detecting microbial invasions. This holds promise for the future treatment of infectious diseases in humans. ... > full story

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