日期：2013-12-30 Massive stars -- those at least 8 times the mass of our Sun -- present an intriguing（有趣的） mystery: how do they grow so large when the vast majority of stars in the Milky Way are considerably smaller? To find the answer, astronomers used the Ata... 阅读全文>>

日期：2013-12-30 For years, scientists have assumed that if mercury is high and increasing in fish in the North American and European Arctic, the same is true of fish elsewhere in the Arctic. But a team of scientists from the U.S., Russia, and Canada has discovered... 阅读全文>>

日期：2013-12-30 You might think that beatboxing, with its harsh, high-energy percussive（冲击的） sounds, would be harder on the voice than the sweet song of a soprano（女高音） . But according to new research by voice expert Dr. H. Steven Sims of the University of... 阅读全文>>

日期：2013-12-30 Researchers have developed a way to microscopically view battery electrodes while they are bathed in wet electrolytes（电解质） , mimicking realistic conditions inside actual batteries. While life sciences researchers regularly use transmission elec... 阅读全文>>

日期：2013-12-30 A team of material scientists, chemical engineers and physicists from the University of Pennsylvania has made another advance in their effort to use liquid crystals as a medium for assembling structures. In their earlier studies, the team produced p... 阅读全文>>

日期：2013-12-30 Women need not fear that eating peanuts during pregnancy could cause their child to develop a peanut allergy, according to a new study from Boston Children's Hospital published online Dec. 23 in JAMA Pediatrics. Our study showed increased peanut con... 阅读全文>>

日期：2013-12-30 Researchers at Oregon Health Science University have discovered that an antioxidant designed by scientists more than a dozen years ago to fight damage within human cells significantly helps symptoms in mice that have a multiple sclerosis-like diseas... 阅读全文>>

日期：2013-12-25 Populations of European corn borer（玉米螟） (ECB), a major corn crop pest , have declined significantly in the eastern United States, according to Penn State researchers. The decline suggests that the use of genetically modified, ECB-resistant corn... 阅读全文>>

日期：2013-12-25 Lyme disease is a common tick-borne illness caused by a bacterium, which is transmitted to humans through the bite of infected ticks. The transmission dynamics of Lyme disease is dependent on a variety of factors, including the length of the tick's... 阅读全文>>

日期：2013-12-25 In the midst of a winter cold snap（寒潮） , a study from researchers in the United States and Greece reveals an overlooked side effect of economic crisis -- dangerous air quality caused by burning cheaper fuel for warmth. The researchers, led by Co... 阅读全文>>

日期：2013-12-24 Researchers have discovered a cause of aging in mammals that may be reversible. The essence of this finding is a series of molecular events that enable communication inside cells between the nucleus and mitochondria（线粒体） . As communication brea... 阅读全文>>

日期：2013-12-24 Humans with a high motor excitability（兴奋性，应激性） have a better working memory than humans with a low excitability. This was shown in a study conducted by scientists from the Transfacultary Research Platform at the University of Basel. By meas... 阅读全文>>

日期：2013-12-24 New research published in the journal Nature resolves decades of scientific controversy over the origin of the extremely energetic particles known as ultra-relativistic electrons in Earth's near-space environment and is likely to influence our under... 阅读全文>>

日期：2013-12-24 New evidence reported in the Cell Press journal Current Biology on December 19 confirms long-held fears about the fate of scientific data. Careful evaluation of more than 500 randomly selected studies found that the original data behind those publis... 阅读全文>>

日期：2013-12-24 In 2013, researchers at the California Academy of Sciences discovered 91 new plant and animal species and two new genera, enriching our understanding of the complex web of life on Earth and strengthening our ability to make informed conservation dec... 阅读全文>>

日期：2013-12-23 Climate change has not been strongly influenced by variations in heat from the sun, a new scientific study shows. The findings overturn a widely held scientific view that lengthy periods of warm and cold weather in the past might have been caused by... 阅读全文>>

日期：2013-12-23 The greater the anxiety level, the higher risk of having a stroke, according to new research published in the American Heart Association journal Stroke. The study is the first in which researchers linked anxiety and stroke independent of other facto... 阅读全文>>

日期：2013-12-23 Scientists from The University of Manchester -- part of Manchester Cancer Research Centre believe they have discovered a new way to make chemotherapy treatment more effective for pancreatic cancer patients. Pancreatic cancer is an aggressive cancer... 阅读全文>>

日期：2013-12-23 A new optical device puts the power to detect eye disease in the palm of a hand. The tool -- about the size of a hand-held video camera -- scans a patient's entire retina（视网膜） in seconds and could aid primary care physicians in the early detect... 阅读全文>>

日期：2013-12-23 Those looking for honest companies to invest in might want to check out businesses based in more religious communities, suggests a new paper from the University of Toronto's Rotman School of Management. The study found that businesses with head offi... 阅读全文>>