日期:2014-07-23 Scientists have discovered that greater mouse-eared bats use polarisation patterns in the sky to navigate -- the first mammal that's known to do this. The bats use the way the Sun's light is scattered in the atmosphere at sunset to calibrate their i... 阅读全文>> 日期:2014-07-23 Eating meat contributes to climate change, due to greenhouse gasses emitted by livestock. New research finds that livestock emissions are on the rise and that beef cattle are responsible for far more greenhouse gas emissions than other types of anim... 阅读全文>> 日期:2014-07-23 By tracking hybrids between songbird(鸣禽) species, investigators have found that migration routes are under genetic control and could be preventing interbreeding. The research, which is published in Ecology Letters, was conducted using geolocator... 阅读全文>> 日期:2014-07-23 Researchers believe they now know why the supersonic trans-Atlantic Concorde aircraft went the way of the dodo(古代巨鸟) -- it hit an evolutionary cul-de-sac. In a new study, Adrian Bejan, professor of mechanical engineering and materials science... 阅读全文>> 日期:2014-07-22 Both shale gas and conventional natural gas have a larger greenhouse gas footprint than do coal or oil, especially for the primary uses of residential and commercial heating. Dr. Robert Howarth, a professor of ecology and environmental biology, came... 阅读全文>> 日期:2014-07-22 Storm-triggered landslides cause loss of life, property damage, and landscape alterations. For instance, the remnants(残余) of Hurricane Camille in 1969 caused 109 deaths in central Virginia, after 600 mm of rain fell in mountainous terrain in 6 h... 阅读全文>> 日期:2014-07-22 A team of scientists from around the world led by Baylor College of Medicine and Washington University in St. Louis has completed the genome sequence of the common marmoset(狨猴) -- the first sequence of a New World Monkey -- providing new informa... 阅读全文>> 日期:2014-07-22 A study of 473 sets of twins followed since birth found that compared to single-born children, 47 percent of 24-month-old identical twins(同卵双胞胎) had language delay compared to 31 percent of non-identical twins. Overall, twins had twice the ra... 阅读全文>> 日期:2014-07-22 By using sophisticated GPS tracking to monitor seals' every movement, researchers have shown for the first time that some individuals are repeatedly drawn to(接近) offshore wind farms and pipelines. Those man-made structures probably serve as arti... 阅读全文>> 日期:2014-07-19 University of Southampton researchers have found that rainwater can penetrate below the Earth's fractured upper crust, which could have major implications for our understanding of earthquakes and the generation of valuable mineral deposits. It had b... 阅读全文>> 日期:2014-07-19 Removal of river water for irrigation and habitat fragmentation(生境破碎化) by irrigation dams were shown to be the principal factors contributing to the decline of the Indus river dolphin, according to a study published July 16, 2014 in the open-... 阅读全文>> 日期:2014-07-19 In what parts of the world and to what degree have groundwater reservoirs been depleted over the past 50 years? The Frankfurt hydrologist(水文学者) Prof. Petra Dll has been researching this using the global water model WaterGAP. She has arrived at... 阅读全文>> 日期:2014-07-19 New research from The University of Texas at Dallas demonstrates that drug paraphernalia triggers the reward areas of the brain differently in dependent and non-dependent marijuana users. The study, published July 1 in Drug and Alcohol Dependence, d... 阅读全文>> 日期:2014-07-19 Anyone who has squashed(压扁) a stink bug(椿象) knows why they got their name. Although just a nuisance(令人讨厌的东西) to homeowners, the insects feed on and damage fruits and vegetables, causing significant economic losses for farmers. Now s... 阅读全文>> 日期:2014-07-19 At the fringe of the whale shark range, the volcanic Azore islands may play an increasing role for the north Atlantic population as sea surface temperatures rise, according to a study published July 16, 2014 in the open-access journal PLOS ONE by Pe... 阅读全文>> 日期:2014-07-19 Genetics could be the key to explaining nation's levels of happiness, according to research from the University of Warwick. Economists at the University's Centre for Competitive Advantage in the Global Economy (CAGE) have looked at why certain count... 阅读全文>> 日期:2014-07-19 Scientists may be able to entomb(埋葬) the malaria parasite in a prison of its own making, researchers at Washington University School of Medicine in St. Louis report July 16 in Nature. As it invades a red blood cell, the malaria parasite takes pa... 阅读全文>> 日期:2014-07-19 Cardiologists at the Cedars-Sinai Heart Institute have developed a minimally invasive(微创性的) gene transplant procedure that changes unspecialized heart cells into biological pacemaker cells that keep the heart steadily beating. The laboratory a... 阅读全文>> 日期:2014-07-15 A new study in women suggests that experiencing one or more stressful events the day before eating a single high-fat meal can slow the body's metabolism, potentially contributing to weight gain. Researchers questioned study participants about the pr... 阅读全文>> 日期:2014-07-15 Weizmann Institute scientists have demonstrated for the first time a photonic(光激性的) router -- a quantum device based on a single atom that enables routing of single photons by single photons. This achievement, as reported in Science magazine,... 阅读全文>> |
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