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News | Archive (16 September 2010)
Johns Hopkins scientists find genes related to body mass
— 05:40 GMT | HealthJohns Hopkins scientists who specialise in unconventional hunts for genetic information outside nuclear DNA sequences have bagged a weighty quarry - 13 genes linked to human body mass. The experiments screened the so-called epigenome for key information that cells remember other than the DNA code itself and may have serious implications for preventing and treating obesity, the investigators say…
Children's brain development is linked to physical fitness
— 05:37 GMT | HealthResearchers have found an association between physical fitness and the brain in 9- and 10-year-old children: Those who are more fit tend to have a bigger hippocampus and perform better on a test of memory than their less-fit peers…
The friendly way to catch the flu
— 05:34 GMT | HealthYour friends are probably more popular than you are. And this 'friendship paradox' may help predict the spread of infectious disease…
Molecule involved in heart failure now implicated in heart attack damage
— 05:31 GMT | HealthA molecule known to be involved in progressive heart failure has now been shown to also lead to permanent damage after a heart attack, according to researchers at Thomas Jefferson University…
Mild memory loss is not a part of normal ageing
— 05:28 GMT | HealthSimply getting older is not the cause of mild memory lapses often called senior moments, according to a new study by researchers at the Rush Alzheimer's Disease Centre. The study, published in the September 15, 2010, online issue of Neurology, the medical journal of the American Academy of Neurology, found that even the very early mild changes in memory that are much more common in old age than dementia are caused by the same brain lesions associated with Alzheimer's disease and other dementias…
Rice study examines how bacteria acquire immunity
— 05:25 GMT | HealthIn a new study this week, Rice University scientists bring the latest tools of computational biology to bear in examining how the processes of natural selection and evolution influence the way bacteria acquire immunity from disease…
Research shows radiometric dating still reliable (again)
— 05:22 GMT | TechnologyRecent puzzling observations of tiny variations in nuclear decay rates have led some to question the science of using decay rates to determine the relative ages of rocks and organic materials. Scientists from the National Institute of Standards and Technology (NIST), working with researchers from Purdue University, the University of Tennessee, Oak Ridge National Laboratory and Wabash College, tested the hypothesis that solar radiation might affect the rate at which radioactive elements decay and found no detectable effect…
New wave: Spin soliton could be a hit in cell phone communication
— 05:19 GMT | TechnologyResearchers at the National Institute of Standards and Technology (NIST) have found theoretical evidence of a new way to generate the high-frequency waves used in modern communication devices such as cell phones. Their analysis, if supported by experimental evidence, could contribute to a new generation of wireless technology that would be more secure and resistant to interference than conventional devices…
New GSI website experience puts product standards on the map
— 05:16 GMT | TechnologyThose looking for the latest product standards-related news, regulatory developments, events and workshops around the world now can turn to the new Global Standards Information (GSI) Web site (http://gsi.nist.gov). Launched on Sept. 1, 2010, the new site includes a variety of interactive tools and will serve as an essential 'first stop' for users seeking up-to-date information on international product standards…
New supercomputer 'sees' well enough to drive a car someday
— 05:13 GMT | TechnologyNavigating our way down the street is something most of us take for granted; we seem to recognise cars, other people, trees and lampposts instantaneously and without much thought. In fact, visually interpreting our environment as quickly as we do is an astonishing feat requiring an enormous number of computations - which is just one reason that coming up with a computer-driven system that can mimic the human brain in visually recognising objects has proven so difficult…
Stars just got bigger
Caltech team finds evidence of water in moon minerals