日期:2013-07-30 What do wound healing, cancer metastasis, and bacteria colonies have in common? They all involve the collective displacement of biological cells. New research sheds some new light on the physical mechanisms provoking the displacement of a sheet of c... 阅读全文>> 日期:2013-07-30 Hydrogen is deceptively simple. It has only a single electron per atom, but it powers the sun and forms the majority of the observed universe. As such, it is naturally exposed to the entire range of pressures and temperatures available in the whole... 阅读全文>> 日期:2013-07-30 Orangutans might be the king of the swingers, but primatologists in Borneo have found that the great apes spend a surprising amount of time walking on the ground. The research, published in the American Journal of Primatology found that it is common... 阅读全文>> 日期:2013-07-30 Albert Einstein's assertion(断言,声明) that there's an ultimate speed limit -- the speed of light -- has withstood countless tests over the past 100 years, but that didn't stop University of California, Berkeley, postdoc Michael Hohensee and grad... 阅读全文>> 日期:2013-07-30 A good state of mind -- that is, your happiness -- affects your genes, scientists say. In the first study of its kind, researchers from UCLA's Cousins Center for Psychoneuroimmunology and the University of North Carolina examined how positive psycho... 阅读全文>> 日期:2013-07-30 Archaeologists have unearthed a mysterious coffin-within-a-coffin near the final resting place of Richard III. The University of Leicester team lifted the lid of a medieval(中世纪的) stone coffin this week -- the final week of their second dig at... 阅读全文>> 日期:2013-07-30 The threat of infants being killed by unrelated males is the key driver of monogamy(一夫一妻制) in humans and other primates. The study by academics from UCL, University of Manchester, University of Oxford and University of Auckland, is the first... 阅读全文>> 日期:2013-07-28 Global warming could be reversed used a combination of burning trees and crops for energy, and capturing and storing carbon dioxide underground (CCS), according to an analysis by scientists. 根据科学家的一份分析报告,通过混合燃烧树木和农作物获得的能... 阅读全文>> 日期:2013-07-27 The economic recession across Europe has had a profound impact on people with mental health problems, research from King's College London suggests. 伦敦国王学院的调查显示,席卷欧洲的经济危机对有心理疾病的人有深远影响。 Between 2006 and 2010, the rat... 阅读全文>> 日期:2013-07-27 Recently, climate change, including global warming, has been a hot news item as many regions of the world have experienced increasingly intense weather patterns, such as powerful hurricanes and extended floods or droughts. Often the emphasis is on h... 阅读全文>> 日期:2013-07-27 Despite being much-maligned(备受非议的) , materialism(唯物主义) is not always bad for consumers. Loneliness may cause materialism, but the opposite is not necessarily true, according to a new study in the Journal of Consumer Research. It is wide... 阅读全文>> 日期:2013-07-27 Complicated statistical behaviour observed in complex systems such as early universe can often be understood if it is broken down into simpler ones. Two physicists, Petr Jizba (currently affiliated with the Czech Technical University in Prague), and... 阅读全文>> 日期:2013-07-27 The mineral molybdenum disulfide (MoS2), which, when solid, behaves in many ways like grease(油脂) , has semiconducting properties that make it a promising alternative to silicon or graphene in electronic devices. It also strongly absorbs visible... 阅读全文>> 日期:2013-07-27 Consumers set high prices when selling their possessions because they feel threatened, according to a new study in the Journal of Consumer Research. When consumers consider selling a product they own, they feel threatened by the impending(即将发生... 阅读全文>> 日期:2013-07-27 Humans are far more than merely the sum total of all the cells that form the organs and tissues. The digestive tract is also home to a vast colony of bacteria of all varieties, as well as the myriad(无数的) viruses that prey upon them. Because the... 阅读全文>> 日期:2013-07-27 A new report projects that by the middle of this century there will be an average 56 percent drop in the amount of water stored in peak snowpack in the McKenzie River watershed(流域,分水岭) of the Oregon Cascade Range -- and that similar impacts... 阅读全文>> 日期:2013-07-27 Increased use of digital communication is causing consumers to lose their inhibitions(抑制,压抑) and overshare online, according to a new study in the Journal of Consumer Research. Sharing itself is not new, but consumers now have unlimited oppor... 阅读全文>> 日期:2013-07-26 Many people complain about poor sleep around the full moon, and now a report appearing in Current Biology, a Cell Press publication, on July 25 offers some of the first convincing scientific evidence to suggest that this really is true. The findings... 阅读全文>> 日期:2013-07-26 New research from scholars at Columbia Business School and the University of Pittsburgh questions the sustainability of Twitter, the social network that has more than 500 million registered users. Columbia Business School Professor Olivier Toubia ha... 阅读全文>> 日期:2013-07-26 On July 25th JoVE, the Journal of Visualized Experiments will publish a new technique that will help scientists better understand the genes that govern food-related behavior in honey bees. The impact of this study could take scientists one-step clos... 阅读全文>> |
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