日期:2013-10-11 Scientists at the Montreal Neurological Institute and Hospital-The Neuro, McGill University, have made important discoveries about a cellular process that occurs during normal brain development and may play an important role in neurodegenerative(神... 阅读全文>> 日期:2013-10-11 Ancient DNA recovered from a time series of skeletons in Germany spanning 4,000 years of prehistory has been used to reconstruct the first detailed genetic history of modern-day Europeans. The study, published today in Science, reveals dramatic popu... 阅读全文>> 日期:2013-10-10 As human life expectancy increases, so does the percentage of invasive and endangered birds and mammals, according to a new study by the University of California, Davis. The study, published in the September issue of Ecology and Society, examined a... 阅读全文>> 日期:2013-10-10 Are scientists any good at judging the importance of the scientific work of others? According to a study published 8 October in the open access journal PLOS Biology (with an accompanying editorial), scientists are unreliable judges of the importance... 阅读全文>> 日期:2013-10-10 Terahertz (THz) radiation -- radiation in the wavelength range of 30 to 300 microns -- is gaining attention due to its applications in security screening, medical and industrial imaging, agricultural inspection, astronomical research, and other area... 阅读全文>> 日期:2013-10-10 Located about 1200 light-years from Earth in the southern constellation of Carina (The Ship's Keel), the Toby Jug Nebula, more formally known as IC 2220, is an example of a reflection nebula. It is a cloud of gas and dust illuminated from within by... 阅读全文>> 日期:2013-10-10 A 2,700-year-old portico(门廊) was discovered this summer on the site of the ancient city of Argilos in northern Greece, following an archaeological excavation led by Jacques Perreault, Professor at the University of Montreal's Centre of Classical... 阅读全文>> 日期:2013-10-10 Though it's barely the beginning of autumn, scientists at the University of Toronto are one step closer to explaining why winter's icicles(冰锥) form with Michelin Man-like ripples on their elongated(瘦长的) shapes. Experimental physicist Stephe... 阅读全文>> 日期:2013-10-09 The greater the empathy(神入,移情作用) skills of children, the easier it is for them to recognize sarcasm(讽刺,挖苦) , according to a new study in the open-access journal Frontiers in Psychology. For children, sarcastic language can be difficu... 阅读全文>> 日期:2013-10-09 Over 80% of the world's ice-free land is at risk of profound ecosystem transformation by 2100, a new study reveals. Essentially, we would be leaving the world as we know it, says Sebastian Ostberg of the Potsdam Institute for Climate Impact Research... 阅读全文>> 日期:2013-10-09 Brain training games, apps, and websites are popular and it's not hard to see why -- who wouldn't want to give their mental abilities a boost? New research suggests that brain training programs might strengthen your ability to hold information in mi... 阅读全文>> 日期:2013-10-09 Eating disorders like anorexia nervos(神经性厌食症) and bulimia(易饿病) often run in families, but identifying specific genes that increase a person's risk for these complex disorders has proved difficult. Now scientists from the University of I... 阅读全文>> 日期:2013-10-09 A recently published study suggests that exposure to social stress not only impairs a mother's ability to care for her children but can also negatively impact her daughter's ability to provide maternal care to future offspring. Researchers at the Cu... 阅读全文>> 日期:2013-10-09 If you've ever whirled(旋转,回旋) a ball attached to a string around your head and then let it go, you know the great speed that can be achieved through a slingshot(弹弓) maneuver. Similarly, NASA's Juno spacecraft will be passing within some 3... 阅读全文>> 日期:2013-10-07 Heated debates about the quantifiable value of arts and literature are a common feature of American social discourse(论述,谈话) . Now, two researchers from The New School for Social Research have published a paper in Science demonstrating that re... 阅读全文>> 日期:2013-10-07 Exposure to common air pollutants found in diesel(柴油) exhaust pollution can affect the ability of honeybees to recognise floral odours, new University of Southampton research shows. Honeybees use floral odours to help locate, identify and recogn... 阅读全文>> 日期:2013-10-07 An Indiana University cancer researcher and his colleagues have discovered new therapeutic targets and drugs that may someday benefit people with certain types of leukemia(白血病) or blood cancer. Reuben Kapur, Ph.D., the Frieda and Albrecht Kipp... 阅读全文>> 日期:2013-10-07 University of Notre Dame researchers Shahriar Mobashery and Mayland Chang and their collaborators in Spain have published research results this week that show how methicillin-resistant Staphylococcus aureus (MRSA) regulates the critical crosslinking... 阅读全文>> 日期:2013-10-07 Scientists have discovered huge ice channels beneath a floating ice shelf in Antarctica. At 250 metres high, the channels are almost as tall as the Eiffel tower and stretch hundreds of kilometres along the ice shelf. The channels are likely to influ... 阅读全文>> 日期:2013-10-06 Wealth inequality can encourage people to cooperate when they would otherwise have no incentive to do so, according to a new study published 3 October in Nature Communications. In many groups and societies, the temptation to defect is high, which me... 阅读全文>> |
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