日期：2012-02-03 Though pacemakers require only small amounts of energy (about 1 millionth of a Watt), their batteries have to be replaced periodically, which means multiple surgeries for patients. Researchers have searched for ways to prolong battery life -- trying... 阅读全文>>

日期：2012-02-03 New research reveals how the arrival of the first plants 470 million years ago triggered a series of ice ages. Led by the Universities of Exeter and Oxford, the study is published in Nature Geoscience. The team set out to identify the effects that t... 阅读全文>>

日期：2012-02-03 Caffeine consumption has long been associated with decreased risk of liver disease and reduced fibrosis（纤维化） in patients with chronic liver disease. Now, newly published research confirms that coffee caffeine consumption reduces the risk of adv... 阅读全文>>

日期：2012-02-03 Internet information giant Google updated ocean data in its Google Earth application this week, reflecting new bathymetry（海洋测深学） data assembled by Scripps Institution of Oceanography, UC San Diego, NOAA researchers and many other ocean mappin... 阅读全文>>

日期：2012-02-01 New research from Cold Spring Harbor Laboratory (CSHL) might help explain how a gene mutation found in some autistic individuals leads to difficulties in processing auditory cues and paying spatial（空间的） attention to sound. The study has found t... 阅读全文>>

日期：2012-02-01 A study of the cells that respond to crises in the blood system has yielded a few surprises, redrawing the 'map' of how blood cells are made in the body. The finding, by researchers from the Walter and Eliza Hall Institute, could have wide-ranging i... 阅读全文>>

日期：2012-02-01 In the US alone, at least 500,000 people suffer from Parkinson's disease, a neurological disorder that affects a person's ability to control his or her movement. New technology from the University of Bonn in Germany lets researchers observe the deve... 阅读全文>>

日期：2012-02-01 A team of researchers led by Michigan State University has discovered an overachieving plant enzyme that works both the day and night shifts. The discovery, featured in the current issue of Proceedings of the National Academies of Science, shows tha... 阅读全文>>

日期：2012-01-31 Divorce at a younger age hurts people's health more than divorce later in life, according to a new study by a Michigan State University sociologist. Hui Liu said the findings, which appear in the research journal Social Science Medicine, suggest old... 阅读全文>>

日期：2012-01-31 Age-related delays in neural timing are not inevitable and can be avoided or offset with musical training, according to a new study from Northwestern University. The study is the first to provide biological evidence that lifelong musical experience... 阅读全文>>

日期：2012-01-31 Just how big can mammals get and how fast can they get there? These are questions examined by an international team of researchers exploring increases in mammal size after the dinosaurs became extinct 65 million years ago. Research published in the... 阅读全文>>

日期：2012-01-31 Oceanographers have identified a series of ocean hotspots around the world generated by strengthening wind systems that have driven oceanic currents, including the East Australian Current, polewards beyond their known boundaries. The hotspots have f... 阅读全文>>

日期：2012-01-31 A meta-analysis done by the Centre for Addiction and Mental Health (CAMH) into the relationship between alcohol consumption and heart disease provides new insight into the long-held belief that drinking a glass of red wine a day can help protect aga... 阅读全文>>

日期：2012-01-31 Wildlife health experts from the Wildlife Conservation Society have published evidence which supports the conclusion that Mongolian gazelles（瞪羚） -- one of the most populous large land mammals on the planet -- are not a reservoir of foot-and-mout... 阅读全文>>

日期：2012-01-31 A new family of proteins which regulate the human body's ' hypoxic（氧过少的） response' to low levels of oxygen has been discovered by scientists at Barts Cancer Institute at Queen Mary, University of London and The University of Nottingham. The di... 阅读全文>>

日期：2012-01-31 The heart's inner workings are mysterious, perhaps even more so with a new finding. Engineers at the University of Washington have discovered an electrical property in arteries not seen before in mammalian tissues. The researchers found that the wal... 阅读全文>>

日期：2012-01-31 Killer whales (Orcinus orca) are the top marine predator, wherever they are found, and seem to eat everything from schools of small fish to large baleen whales（须鲸） , over twice their own size. The increase in hunting territories available to kil... 阅读全文>>

日期：2012-01-30 Japan used seawater to cool nuclear fuel at the stricken Fukushima-Daiichi nuclear plant after the tsunami in March 2011 -- and that was probably the best action to take at the time, says Professor Alexandra Navrotsky of the University of California... 阅读全文>>

日期：2012-01-30 Whenever we fall ill, there are many different factors that come together to influence the course of our illness. Additional medical conditions, stress levels, and social support all have an impact on our health and well-being, especially when we ar... 阅读全文>>

日期：2012-01-30 Researchers at Oregon Health Science University have discovered that a molecule critical to the development and plasticity（可塑性） of nerve cells - brain-derived neurotrophic factor (BDNF) - is severely lacking in brainstem neurons in mutations le... 阅读全文>>