日期：2013-10-25 没有证据表明一天之内除了饮用其他饮料外再喝八杯水会对你有益，事实是这可能对身体有害。生活在温带气候的人若没有保持体力锻炼，一天则需要六至八杯水，不过这些水分可以通过食物、酒或含咖啡因的饮料获得。 Drinking eight cups or two litres of water a day is lo... 阅读全文>>

日期：2013-10-25 Fresh air polluted by exhaust fumes and industrial emissions causes lung cancer, a team of World Health Organisation experts has officially declared. 世界卫生组织的专家们正式宣布，被汽车尾气和工业废气污染的空气会导致肺癌。 Outdoor air pollution was... 阅读全文>>

日期：2013-10-25 Making hydrogen easily and cheaply is a dream goal for clean, sustainable energy. Bacteria have been doing exactly that for billions of years, and now chemists at the University of California, Davis, and Stanford University are revealing how they do... 阅读全文>>

日期：2013-10-25 Over the past three years, 300,000 gamers have helped scientists with genomic research by playing Phylo, an online puzzle game. Now Jrme Waldisphl, the McGill computer science professor and his colleagues, who developed the game are making this crow... 阅读全文>>

日期：2013-10-25 Just as our bodies have skeletons, so do our cells. They're equally indispensible（不可缺少的） in both cases. Without our bony skeletons we'd go limp and fall down. And without our cytoskeletons（细胞骨架） , our cells, which come in roughly 200 di... 阅读全文>>

日期：2013-10-25 The painful, potentially deadly stings of bark scorpions are nothing more than a slight nuisance（损害） to grasshopper mice, which voraciously（狼吞虎咽地） kill and consume their prey with ease. When stung, the mice briefly lick their paws and mov... 阅读全文>>

日期：2013-10-24 Where two different materials meet on the atomic level, a new material can be born that is neither one nor the other. The two parent materials do not mix -- they remain distinct from one another -- but their marriage begets（产生，引起） a strange c... 阅读全文>>

日期：2013-10-24 Similar to passengers on an urban transit system, every protein made in the cell has a specific destination and function. Channels in cell membranes help direct these proteins to their appropriate target. Researchers at Boston University School of M... 阅读全文>>

日期：2013-10-24 Researchers report that wood- biochar（生物炭） supercapacitors can produce as much power as today's activated-carbon supercapacitors at a fraction of the cost -- and with environmentally friendly byproducts. The report appears in the journal Electr... 阅读全文>>

日期：2013-10-24 Cells in the human body change shape as they crawl, split, or cling to other surfaces, but while the scientific literature is filled with examples of how cell shapes shift in response to things they touch, little is known about the rules that govern... 阅读全文>>

日期：2013-10-24 The typical college student plays with his or her digital device an average of 11 times a day while in class, according to a new study by a University of Nebraska-Lincoln associate professor. More than 80 percent admit that their use of smart phones... 阅读全文>>

日期：2013-10-24 University of California, Riverside astronomers Bahram Mobasher and Naveen Reddy are members of a team that has discovered the most distant galaxy ever found. The galaxy is seen as it was just 700 million years after the Big Bang, when the universe... 阅读全文>>

日期：2013-10-23 For many years two companies located in Bizkaia, Bilbao Chemicals (Barakaldo 1947-1987) and Nexana (Erandio 1952-1982), had been manufacturing lindane（林丹） and dumping it into the environment with no control whatsoever. Today we have become aware... 阅读全文>>

日期：2013-10-23 Scientists used the powerful X-ray laser at the U.S. Department of Energy's SLAC National Accelerator Laboratory to create movies detailing trillionths-of-a-second changes in the arrangement of copper atoms after an extreme shock. Movies like these... 阅读全文>>

日期：2013-10-23 People who have had what they believe to be supernatural experiences are more likely to be religious givers, with their behavior based on cost-benefit principles that work in other transactions -- whether that be through Amazon.com or an auto repair... 阅读全文>>

日期：2013-10-23 The current global epidemic of obesity-linked diabetes and its associated consequences -cardiovascular, neurological and renal（肾脏的） diseases -- is a growing public health problem for which therapeutic options are limited. In obesity, fatty acid... 阅读全文>>

日期：2013-10-23 Researchers at the University of Colorado Boulder have successfully added a fourth dimension to their printing technology, opening up exciting possibilities for the creation and use of adaptive, composite materials in manufacturing, packaging and bi... 阅读全文>>

日期：2013-10-23 Recycling or scrap press: physicians at the Ruhr-Universitt have found out which molecular mechanisms decide about the fate of the import receptor Pex18. Pex18 is responsible for the import of proteins into specific cell components, namely peroxisom... 阅读全文>>

日期：2013-10-23 Researchers modeling how changes in air flow patterns affect wind turbines' output power have found that the wind can supply energy from an unexpected direction: below. According to the researchers, who report their results in the journal Physics of... 阅读全文>>

日期：2013-10-20 Physicians have long observed that binge drinking（酗酒，豪饮） can significantly impair the healing process following a bone fracture. Now a study by Loyola University Medical Center researchers is providing insights into how alcohol slows healing... 阅读全文>>