日期:2013-11-19 Researchers at The University of Texas at Austin have developed a simple scaling theory(标度理论) to estimate gas production from hydraulically(水压的) fractured wells in the Barnett Shale. The method is intended to help the energy industry accu... 阅读全文>> 日期:2013-11-19 Researchers have made the first battery electrode that heals itself, opening a new and potentially commercially viable path for making the next generation of lithium ion batteries for electric cars, cell phones and other devices. The secret is a str... 阅读全文>> 日期:2013-11-19 Computer engineers and hearing scientists at The Ohio State University have made a potential breakthrough in solving a 50-year-old problem in hearing technology: how to help the hearing-impaired understand speech in the midst of background noise. In... 阅读全文>> 日期:2013-11-19 A late-breaking clinical trial, known as the Treatment of Preserved Cardiac Function Heart Failure with an Aldosterone(醛固酮) Antagonist (TOPCAT) trial, to be presented at the American Heart Association (AHA) Scientific Sessions, November 18, 201... 阅读全文>> 日期:2013-11-19 University of Utah biologists found that when mother mice compete socially for mates in a promiscuous(杂乱的) environment, their sons play hard(行为卑鄙) and die young: They attract more females by making more urinary pheromones(信息素) , but... 阅读全文>> 日期:2013-11-18 It's a common perception portrayed in movies from The Breakfast Club to Mean Girls. Teenage friendships are formed by joining cliques(派系,小团体) such as jocks, geeks and goths. But a national study led by a Michigan State University scholar fin... 阅读全文>> 日期:2013-11-18 From the production of tougher, more durable smart phones and other electronic devices, to a wider variety of longer lasting biomedical implants, bulk metallic glasses are poised to be mainstay materials for the 21st Century. Featuring a non-crystal... 阅读全文>> 日期:2013-11-18 Cancer treatment takes a toll(造成重大伤亡) on the hearts of child survivors, according to research presented at the American Heart Association's Scientific Sessions 2013. Cancer is the leading cause of disease-related death among U.S. children, b... 阅读全文>> 日期:2013-11-18 Two billion years ago Earth system was recovering from perhaps the single-most profound modification of its surface environments: the oxygenation of the atmosphere and oceans. This led to a series of major changes in global biogeochemical cycles, as... 阅读全文>> 日期:2013-11-18 Performing CPR for 38 minutes or longer can improve a patient's chance of surviving cardiac arrest(心搏停止) , according to a study presented at the American Heart Association's Scientific Sessions 2013. Sustaining CPR that long also improves the... 阅读全文>> 日期:2013-11-18 It wasn't what they were looking for but that only made the discovery all the more exciting. In January 2010 a team of scientists had set up two crossing lines of seismographs(地震仪) across Marie Byrd Land in West Antarctica. It was the first tim... 阅读全文>> 日期:2013-11-14 New findings show that extensive musical training affects the structure and function of different brain regions, how those regions communicate during the creation of music, and how the brain interprets and integrates sensory information. The finding... 阅读全文>> 日期:2013-11-14 In a major new international report, experts conclude that the acidity of the world's ocean may increase by around 170% by the end of the century bringing significant economic losses. People who rely on the ocean's ecosystem services -- often in dev... 阅读全文>> 日期:2013-11-14 Chili peppers may have been used to make spicy beverages thousands of years ago in Mexico, according to new research published November 13 in the open-access journal PLOS ONE by Terry Powis at Kennesaw State University and colleagues from other inst... 阅读全文>> 日期:2013-11-14 It's a foggy fall morning, and University of Washington researcher Susan Dickerson-Lange pokes her index finger into the damp soil beneath a canopy(遮盖) of second-growth conifers(松柏类) . The tree cover is dense here, and little light seeps in... 阅读全文>> 日期:2013-11-14 Johns Hopkins researchers report that the deletion of any single gene in yeast cells puts pressure on the organism's genome to compensate(补偿,赔偿) , leading to a mutation in another gene. Their discovery, which is likely applicable to human gen... 阅读全文>> 日期:2013-11-14 An international team of astronomers has answered a long standing question about the enigmatic(神秘的) jets emitted by black holes, in research published today in the journal Nature. Jets are narrow beams of matter spat out at high speed from near... 阅读全文>> 日期:2013-11-14 Millimeter-wave imaging technology is widely used in airborne radar(机载雷达) , automotive sensors and full-body scanners for passenger screening at airports. A new, quasi-optical radar technique images millimeter-wave radiation reflected from fus... 阅读全文>> 日期:2013-11-13 The rain in Spain may lie mainly on the plain, but the location and intensity of that rain is changing not only in Spain but around the globe. A new study by Lawrence Livermore National Laboratory scientists shows that observed changes in global (oc... 阅读全文>> 日期:2013-11-13 A new study concludes that it doesn't matter how compelling an advertisement may be, most die-hard Oregon State Beavers fans will simply not purchase a product associated with the Oregon Ducks. Researchers at Oregon State University and California S... 阅读全文>> |
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