日期:2013-10-30 Sperm whales weigh up to 50 tons, and the smallest bat barely reaches a gram. Nevertheless, the two species share the same success story: They both have developed the ability to use echolocation -- a biological sonar -- for hunting. Now Danish resea... 阅读全文>> 日期:2013-10-30 Gems are known for the beauty of the light that passes through them. But it is the fixed atomic arrangements of these crystals that determine the light frequencies permitted passage. Now a Sandia-led team has created a plasmonic, or plasma-containin... 阅读全文>> 日期:2013-10-30 Researchers from Nanjing Normal University and BGI report their original genomic research on Baiji, also known as Yangtze River dolphin (Lipotes vexillifer). The study gives new insight into the genetic and evolutionary adaptations of Dolphin, and p... 阅读全文>> 日期:2013-10-30 More than 1 in 10 Americans take antidepressants, but these medications can take weeks -- and for some patients, months -- before they begin to alleviate(减轻,缓和) symptoms. Now, scientists from the University of Chicago have discovered that sel... 阅读全文>> 日期:2013-10-30 Usually, women can tell when someone's eyes aren't on her face and are, well, focused elsewhere on her body. In other words, there's a reason the saying on the t-shirt is My Eyes Are Up Here. But how, exactly, does that objectifying gaze play out(... 阅读全文>> 日期:2013-10-29 A new study offers an explanation for the extraordinary run of wet summers experienced by Britain and northwest Europe between 2007 and 2012. The study found that loss of Arctic sea ice shifts the jet stream further south than normal resulting in in... 阅读全文>> 日期:2013-10-29 Social science graduates are more likely to be in employment after their first degree than graduates in other areas such as science and the arts, and a higher proportion are in managerial and senior official roles, a new report says. The report, by... 阅读全文>> 日期:2013-10-29 Taxonomic(分类的) descriptions, introduced by Linnaeus in 1735, are designed to allow scientists to tell one species from another. Now there is a new futuristic(未来派飞) method for describing new species that goes far beyond the tradition. The... 阅读全文>> 日期:2013-10-29 Americans place high value on butterfly royalty. A recent study suggests they are willing to support monarch butterfly conservation at high levels, up to about 6 billion dollars if extrapolated(推测) to all U.S. households. If even a small percent... 阅读全文>> 日期:2013-10-29 Global warming and forest disturbances may have a silver lining for threatened species of grizzly bears(灰熊) in Alberta, Canada. In a 10-year study that monitored 112 bears in Alberta's Rocky Mountain region, University of Alberta biologist Scott... 阅读全文>> 日期:2013-10-29 Gender is no longer determined solely by biological factors, according to a new study by a Grand Valley State University researcher whose article, Doing Gender, Determining Gender: Transgender People, Gender Panics, and the Maintenance of the Sex/Ge... 阅读全文>> 日期:2013-10-29 As global forest and climate experts gather at the Oslo REDD Exchange 2013 to ramp up(斜升,加强) international efforts to protect carbon-storing forests in the developing world, a recent study by researchers at the Nairobi-based World Agroforestr... 阅读全文>> 日期:2013-10-28 Scientists have made a rare discovery that allows them to attribute two types of tumour almost entirely to specific mutations that lie in two related genes. These mutations are found in nearly 100 per cent of patients suffering from two rare bone tu... 阅读全文>> 日期:2013-10-28 Climate changes from millions of years ago are recorded at daily rate in ancient sea shells, new research shows. A huge X-ray microscope has revealed growth bands in plankton(浮游生物) shells that show how shell chemistry records the sea temperatu... 阅读全文>> 日期:2013-10-28 A collaborative team of researchers has used next generation sequencing to identify clinically relevant genetic variants associated with a rare pediatric(小儿科的) speech disorder. The findings are published in the September 16, 2013 issue of the... 阅读全文>> 日期:2013-10-28 Every day, all day, our DNA gets beaten up by chemicals and radiation -- but remarkably, most of us stay healthy. Now, an investigation by a team of French and Canadian researchers has produced insights into a little-studied but common radiation thr... 阅读全文>> 日期:2013-10-28 As the U.S. makes new plans for disposing of spent nuclear fuel and other high-level radioactive waste deep underground, geologists are key to identifying safe burial sites and techniques. Scientists at The Geological Society of America (GSA) meetin... 阅读全文>> 日期:2013-10-28 Fracking is in the headlines a lot these days, and everyone has an opinion about it. But how much do we really know for certain about the oil and gas extraction technique and its health effects? And how do we find out the truth among all the shouted... 阅读全文>> 日期:2013-10-28 Dendrites(树突) , the branch-like projections of neurons, were once thought to be passive wiring in the brain. But now researchers at the University of North Carolina at Chapel Hill have shown that these dendrites do more than relay information fr... 阅读全文>> 日期:2013-10-25 最近发表的一篇研究表明:分享或关注网上食物的照片会使得我们对食物的满意程度下降。实验显示,某种食物的图片看到的越多,人们越不喜欢吃那种食物。 Problem: On the scale of problems, pictures of food on the Internet is firmly first-world. And that is almos... 阅读全文>> |
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