日期：2012-11-20 Many of the world's most unfamiliar species are just sitting around on museum shelves collecting dust. That's according to a report in the November 20th issue of the Cell Press journal Current Biology showing that it takes more than 20 years on aver... 阅读全文>>

日期：2012-11-20 Chimpanzees and orangutans can experience a mid-life crisis just like humans, a study suggests. This is the finding from a new study, published in the Proceedings of the National Academy of Sciences, that set out to test the theory that the pattern... 阅读全文>>

日期：2012-11-16 A new study by researchers at Imperial College London has identified a way in which Salmonella bacteria, which cause gastroenteritis（肠胃炎） and typhoid（伤寒） fever, counteract the defence mechanisms of human cells. One way in which our cells fi... 阅读全文>>

日期：2012-11-16 Thermoelectric devices, which can harness temperature differences to produce electricity, might be made more efficient thanks to new research on heat propagation（传播，繁殖） through structures called superlattices. The new findings show, unexpecte... 阅读全文>>

日期：2012-11-16 At least one-third of the species that inhabit the world's oceans may remain completely unknown to science. That's despite the fact that more species have been described in the last decade than in any previous one, according to a report published on... 阅读全文>>

日期：2012-11-16 A University of Toronto-led team of anthropologists has found evidence that human ancestors used stone-tipped weapons for hunting 500,000 years ago -- 200,000 years earlier than previously thought. This changes the way we think about early human ada... 阅读全文>>

日期：2012-11-15 The breeding population of chinstrap penguins has declined significantly as temperatures have rapidly warmed on the Antarctic Peninsula, according to researchers funded in part by the National Science Foundation (NSF). The study indicates that chang... 阅读全文>>

日期：2012-11-15 The human nose has millions of olfactory（嗅觉的） neurons grouped into hundreds of different neuron types. Each of these neuron types expresses only one odorant receptor, and all neurons expressing the same odorant receptor plug into one region in... 阅读全文>>

日期：2012-11-15 Can we actually read words and phrases and solve multi-step mathematical problems without our having consciously been aware of them? A team in the Psychology Department at the Hebrew University has conducted a series of experiments that give a posit... 阅读全文>>

日期：2012-11-15 Grasshoppers are having to change their song -- one of the iconic sounds of summer -- to make themselves heard above the din（喧嚣） of road traffic, ecologists have discovered. The study, published in the British Ecological Society's journal Functi... 阅读全文>>

日期：2012-11-15 The aftershock of a stellar explosion rippling through space is captured in this new view of supernova（超新星） remnant W44, which combines far-infrared and X-ray data from ESA's Herschel and XMM-Newton space observatories. W44, located around 10,0... 阅读全文>>

日期：2012-11-15 Wondering if your caged hamster（仓鼠） gets bored? It's highly likely if the critter（生物，家畜） has nothing to do all day. Those are the findings of University of Guelph researchers in the first research study to empirically（以经验为主地） demo... 阅读全文>>

日期：2012-11-14 Two professors at the University of California, Riverside Bourns College of Engineering have developed a new method that doubles the efficiency of wireless networks and could have a large impact on the mobile Internet and wireless industries. Effici... 阅读全文>>

日期：2012-11-14 Game-playing may help intelligence analysts with the serious business of identifying biases that can cloud decision-making and problem-solving during life or death situations, according to researchers. Analytic exercises conducted by researchers at... 阅读全文>>

日期：2012-11-14 It may seem like common sense that the quality of online video streaming affects how willing viewers are to watch videos at a website. But until computer science researcher Ramesh Sitaraman at the University of Massachusetts Amherst and collaborator... 阅读全文>>

日期：2012-11-14 UC Irvine biologists have discovered that fats within cells store a class of proteins with potent antibacterial activity, revealing a previously unknown type of immune system response that targets and kills bacterial infections. Steven Gross, UCI pr... 阅读全文>>

日期：2012-11-14 After nearly 10 years of follow-up of study participants who experienced migraines（偏头痛） and who had brain lesions identified via magnetic resonance imaging, women with migraines had a higher prevalence and greater increase of deep white matter... 阅读全文>>

日期：2012-11-13 Most emerging infectious diseases of humans come from animals. International health agencies monitor these diseases, but they do so only for humans and livestock, not for companion dogs and cats. A new study recommends a global system is needed to m... 阅读全文>>

日期：2012-11-13 The first direct evidence that marked changes to Antarctic sea ice drift have occurred over the last 20 years, in response to changing winds, is published this week in the journal Nature Geoscience. Scientists from NERC's British Antarctic Survey (B... 阅读全文>>

日期：2012-11-13 Erosion（侵蚀） caused by flowing water does not only smooth out objects, but can also form distinct shapes with sharp points and edges, a team of New York University researchers has found. Their findings, which appear in the latest edition of the j... 阅读全文>>