日期:2010-12-23 Two researchers at Albert Einstein College of Medicine of Yeshiva University have found that our 98.6 F (37 C) body temperature strikes a perfect balance: warm enough to ward off(避开,挡住) fungal infection(真菌感染) but not so hot that we need... 阅读全文>>

日期:2010-12-23 A multinational research team led by scientists at the National Institutes of Health has found that a genetic variant of a brain receptor molecule may contribute to violently impulsive behavior when people who carry it are under the influence of alc... 阅读全文>>

日期:2010-12-23 For most of us, the placebo effect is synonymous with(与同义) the power of positive thinking; it works because you believe you're taking a real drug. But a new study rattles this assumption. Researchers at Harvard Medical School's Osher Research C... 阅读全文>>

日期:2010-12-22 December is a time for twinkling lights, and scientists at the Department of Energy's Thomas Jefferson National Accelerator Facility are delivering. They've just produced a long-sought, rare color of laser light 100 times brighter than that generate... 阅读全文>>

日期:2010-12-22 New research from The University of Western Ontario leads investigators to believe that woolly mammoths(猛犸象,长毛象) living north of the Arctic Circle during the Pleistocene Epoch(更新世) (approx. 150,000 to 40,000 years ago) began weaning(... 阅读全文>>

日期:2010-12-22 Contrary to the belief of many scientists (as well as many members of the public), new research confirms that Africa has twonot onespecies of elephant. Scientists from Harvard Medical School, the University of Illinois, and the University of York in... 阅读全文>>

日期:2010-12-21 Researchers at Vanderbilt University have engineered a mouse that can run on a treadmill twice as long as a normal mouse by increasing its supply of acetylcholine(乙酰胆碱) , the neurotransmitter(神经传导素) essential for muscle contraction. The... 阅读全文>>

日期:2010-12-21 Researchers from the University of Washington say the Mariana crow(乌鸦) , a forest crow living on Rota Island in the western Pacific Ocean, will go extinct in 75 years. The extinction could happen almost twice as soon as previously believed. The... 阅读全文>>

日期:2010-12-21 Nitrous oxide(一氧化二氮) , a potent greenhouse gas, has increased by more than 20 percent over the last century, and nitrogen in waterways is fueling part of that growth, according to a Michigan State University study. Based on this new study, th... 阅读全文>>

日期:2010-12-21 Nasal congestion(鼻塞,鼻充血) can be a sign of severe asthma(哮喘) , which means that healthcare professionals should be extra vigilant(警惕的) when it comes to nasal complaints. Furthermore, more severe asthma appears to be more common than... 阅读全文>>

日期:2010-12-21 Clemson University psychologist Eric Muth sees motion sickness as potential fallout(原子尘) from high-end technology that once was limited to the commercial marketplace moving to consumer use in gaming devices. Microsoft's Kinect is the latest exa... 阅读全文>>

日期:2010-12-21 Researchers at the University of California, Berkeley, have developed a new technique that allows plasmon(胞质基因,等离子体振子) lasers to operate at room temperature, overcoming a major barrier to practical utilization of the technology. The ach... 阅读全文>>

日期:2010-12-21 In the latest of a series of related papers, researchers at the University of California, San Diego School of Medicine, with colleagues in Austria and elsewhere, present a new and more definitive explanation of how fibrotic(纤维化的) cells form, m... 阅读全文>>

日期:2010-12-21 Scientists at the Harvard School of Public Health (HSPH) and collaborators from other institutions have identified a natural substance in dairy fat that may substantially(实质上,大体上) reduce the risk of type 2 diabetes. The compound, trans-palm... 阅读全文>>

日期:2010-12-21 Researchers have reported some of the first evidence that chimpanzee(黑猩猩) youngsters in the wild may tend to play differently depending on their sex, just as human children around the world do. Although both young male and female chimpanzees pl... 阅读全文>>

日期:2010-12-20 One of the requirements to keep trends in computer technology on track to be ever faster, smaller, and more energy-efficient is faster writing and processing of data. In the Dec. 17 issue of the journal Science, physicists at the Technische Universi... 阅读全文>>

日期:2010-12-20 New research into the health benefits of beetroot juice suggests it's not only athletes who can benefit from its performance enhancing properties its physiological effects could help the elderly or people with heart or lung-conditions enjoy more act... 阅读全文>>

日期:2010-12-20 A pipefitter knows how to make an exact cut on a metal rod. But it's far harder to imagine getting a precise cut on a carbon nanotube, with a diameter 1/50,000th the thickness of a human hair. In a paper published this month in the British journal P... 阅读全文>>

日期:2010-12-20 Rapid turnover and remodelling of lipid membranes could help phytoplankton(浮游植物) cope with nutrient scarcity in the open ocean. A team led by Patrick Martin of the National Oceanography Centre has shown that a species of planktonic marine alga... 阅读全文>>

日期:2010-12-20 Researchers funded by the Biotechnology and Biological Sciences Research Council (BBSRC) at the University of Oxford have uncovered a clue that may help to explain why the earliest evidence of complex multicellular animal life appears around 550 mil... 阅读全文>>

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