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News | Archive (13 January 2011)
NASA satellites find high-energy surprises in 'constant' Crab Nebula
— 17:15 GMT | AstronomyThe combined data from several NASA satellites has astonished astronomers by revealing unexpected changes in X-ray emission from the Crab Nebula, once thought to be the steadiest high-energy source in the sky…
NASA research finds 2010 tied for warmest year on record
— 17:12 GMT | EnvironmentGlobal surface temperatures in 2010 tied 2005 as the warmest on record, according to an analysis released Wednesday by researchers at NASA's Goddard Institute for Space Studies (GISS) in New York…
Antibiotics best treatment for ear infections in toddlers, NIH grantees find
— 17:09 GMT | HealthAdding new evidence to the debate on the best treatment for middle-ear infections, or acute otitis media, in young children, clinical researchers at the Children's Hospital of Pittsburgh of the University of Pittsburgh Medical Centre have found antibiotics to be more effective than a placebo in relieving symptoms. These findings appear in the January 13th issue of the New England Journal of Medicine. The study was funded by the National Institute of Allergy and Infectious Diseases, part of the National Institutes of Health…
New telescope is exploring solar system 'outback'
— 17:06 GMT | AstronomyIn the outer reaches of our solar system lies a mysterious region far more remote and difficult to explore than the Australian outback. It remains the only part of our solar system not visited by spacecraft. Called the Kuiper Belt, this area beyond Neptune is home to the dwarf planets Pluto, Eris, Makemake, and Haumea. It also harbours thousands of smaller objects that form a second, icy asteroid belt (or more appropriately, comet belt). In this realm of perpetual twilight, the distant sun looks like just another bright star…
GUMC researcher says tinnitus is much more than a 'hearing problem'
— 17:03 GMT | HealthTinnitus appears to be produced by an unfortunate confluence of structural and functional changes in the brain, say neuroscientists at Georgetown University Medical Centre (GUMC)…
Some heart attack rates declining and survival improving
— 17:00 GMT | HealthCoronary syndromes vary in severity, ranging from unstable angina, non-ST segment elevation myocardial infarction (NSTEMI), to ST-segment elevation myocardial infarction (STEMI), the most severe diagnosis. Little data exist about changing trends in acute myocardial infarction and whether death rates are increasing or decreasing. In a study published in the January 2011 issue of The American Journal of Medicine, investigators found that STEMI rates decreased and one-year post-discharge death rates decreased in NSTEMI and STEMI patients…
Natural dissolved organic matter plays dual role in cycling of mercury
— 16:57 GMT | EnvironmentNature has a bit of a Jekyll and Hyde relationship with mercury, but researchers at the Department of Energy's Oak Ridge National Laboratory have made a discovery that ultimately could help explain the split personality…
New insight into neuronal survival after brain injury
— 16:54 GMT | HealthA new study identifies a molecule that is a critical regulator of neurone survival after ischaemic brain injury. The research, published by Cell Press in the January 13 issue of the journal Neuron, may lead to new therapies that reduce damage after a stroke or other injuries that involve an interruption in blood supply to the brain…
Caltech-led team creates damage-tolerant metallic glass
— 16:51 GMT | TechnologyGlass is inherently strong, but when it cracks or otherwise fails, it proves brittle, shattering almost immediately. Steel and other metal alloys tend to be tough - they resist shattering - but are also relatively weak; they permanently deform and fail easily…
Astronomers discover close-knit pairs of massive black holes
— 16:48 GMT | AstronomyAstronomers at the California Institute of Technology (Caltech), University of Illinois at Urbana-Champaign (UIUC), and University of Hawaii (UH) have discovered 16 close-knit pairs of supermassive black holes in merging galaxies…
Vast cloud of antimatter traced to binary stars
Hubble finds double Einstein ring