日期：2013-08-08 High pressures and temperatures cause materials to exhibit unusual properties, some of which can be special. Understanding such new properties is important for developing new materials for desired industrial uses and also for understanding the inter... 阅读全文>>

日期：2013-08-08 Forests have a limited capacity to soak up atmospheric carbon dioxide, according to a new study from Northern Arizona University. The study, available online in the journal New Phytologist, aimed to explore how rising atmospheric carbon dioxide coul... 阅读全文>>

日期：2013-08-08 One of the world's longest migrations of zebras occurs in the African nation of Botswana, but predicting when and where zebras will move has not been possible until now. Using NASA rain and vegetation data, researchers can track when and where arid... 阅读全文>>

日期：2013-08-08 A joint Group Health-University of Washington (UW) study in the New England Journal of Medicine has found that higher blood sugar levels are associated with higher dementia risk, even among people who do not have diabetes. Blood sugar levels average... 阅读全文>>

日期：2013-08-08 Dogs yawn（打呵欠） contagiously when they see a person yawning, and respond more frequently to their owner's yawns than to a stranger's, according to research published August 7 in the open access journal PLOS ONE by Teresa Romero and colleagues fr... 阅读全文>>

日期：2013-08-07 A team of researchers led by North Carolina State University has developed a technique that provides real-time images of how magnesium（镁） changes at the atomic scale when exposed to radiation. The technique may give researchers new insights into... 阅读全文>>

日期：2013-08-07 Something big is about to happen on the sun. According to measurements from NASA-supported observatories, the sun's vast magnetic field is about to flip. It looks like we're no more than three to four months away from a complete field reversal（逆转... 阅读全文>>

日期：2013-08-07 A Dartmouth-led team has discovered a group of stress-related proteins that explains how plants avoid sunburn in intense light, a finding that one day could help biotechnologists to develop crops that can better cope with hotter, drier conditions oc... 阅读全文>>

日期：2013-08-07 Dolphins can recognize their old tank mates' whistles after being separated for more than 20 years -- the longest social memory ever recorded for a non-human species. The remarkable memory feat is another indication that dolphins have a level of cog... 阅读全文>>

日期：2013-08-06 There is no high quality evidence that antioxidant（抗氧化剂） supplements help to increase a woman's chances of having a baby, according to the results of a new systematic review. The review, published in The Cochrane Library, found women were no m... 阅读全文>>

日期：2013-08-06 Molecules could soon be scanned in a fashion similar to imaging screenings at airports, thanks to a detector developed by University of Pittsburgh physicists. The detector, featured in a recent issue of Nano Letters, may have the ability to chemical... 阅读全文>>

日期：2013-08-06 If history's closest analog（模拟） is any indication, the look of the oceans will change drastically in the future as the coming greenhouse world alters marine food webs and gives certain species advantages over others. Scripps Institution of Ocean... 阅读全文>>

日期：2013-08-06 Chronic harvesting of a tropical tree that many local communities in Western Africa depend on can alter the tree's reproduction and drastically curtail（缩减） fruit and seed yields over the tree's lifetime, according to a new study. The study, whic... 阅读全文>>

日期：2013-08-06 The global treaty that headed off destruction of earth's protective ozone layer has also prevented major disruption of global rainfall patterns, even though that was not a motivation for the treaty, according to a new study in the Journal of Climate... 阅读全文>>

日期：2013-08-06 In a study carried out at the University of Eastern Finland, bone histomorphometry（组织形态测定术） and infrared spectroscopy revealed abnormal bone properties in children with vertebral fractures and in children after solid organ transplantation.... 阅读全文>>

日期：2013-08-06 Patients who are otherwise completely unable to communicate can answer yes or no questions within seconds with the help of a simple system -- consisting of just a laptop and camera -- that measures nothing but the size of their pupils. The tool, des... 阅读全文>>

日期：2013-08-05 Scientists from UC Irvine and the National Center for Atmospheric Research have developed a new computer model to measure global warming's effect on soil worldwide that accounts for how bacteria and fungi in soil control carbon. They found that soil... 阅读全文>>

日期：2013-08-05 Researchers at the University of Basel have successfully replaced the rare element iodine（碘） in copper-based dye-sensitized solar cells by the more abundant element cobalt（钴） , taking a step forward in the development of environmentally friend... 阅读全文>>

日期：2013-08-05 Two Michigan State University evolutionary biologists offer new evidence that evolution doesn't favor the selfish, disproving a theory popularized in 2012. We found evolution will punish you if you're selfish and mean, said lead author Christoph Ada... 阅读全文>>

日期：2013-08-05 Monash University researchers have brought next generation energy storage closer with an engineering first -- a graphene-based device that is compact, yet lasts as long as a conventional battery. Published today in Science, a research team led by Pr... 阅读全文>>