日期:2013-04-09 Monarch butterflies have long been admired for their sense of direction, as they migrate from Canada and the United States to Mexico. According to new findings from a team of scientists, including researchers from the University of Guelph, the winge... 阅读全文>> 日期:2013-04-09 The vocal lip-smacks that geladas(狒狒) use in friendly encounters have surprising similarities to human speech, according to a study reported in the Cell Press journal Current Biology on April 8th. The geladas, which live only in the remote mount... 阅读全文>> 日期:2013-04-08 A chemical found in red meat helps explain why eating too much steak, mince and bacon is bad for the heart, say US scientists. 美国科学家称,红色肉类中发现的一种化学物可以帮助解释为什么吃太多牛排、肉馅和腌肉对心脏不好。 A study in the journal Nature... 阅读全文>> 日期:2013-04-08 Global population data spanning the years from 1900 to 2010 have enabled a research team from the Autonomous University of Madrid to predict that the number of people on Earth will stabilise around the middle of the century. The results, obtained wi... 阅读全文>> 日期:2013-04-08 A research team led by Professor Makoto Fujita of the University of Tokyo, Japan, and complemented by Academy Professor Kari Rissanen of the University of Jyvskyl, Finland, has made a fundamental breakthrough in single-crystal X-ray analysis, the mo... 阅读全文>> 日期:2013-04-08 A new study has found that pollution from fine particles in the air -- mainly the result of burning coal or volcanic eruptions -- can shade corals from sunlight and cool the surrounding water resulting in reduced growth rates. Although coral reefs g... 阅读全文>> 日期:2013-04-08 The global burden of dengue infection is more than triple current estimates from the World Health Organization, according to a multinational study published today in the journal Nature. The research has created the first detailed and up-to-date map... 阅读全文>> 日期:2013-04-08 Research from New Zealand's University of Otago detailing the fossil of a dwarf baleen(鲸须) whale from Northern California reveals that it avoided extinction far longer than previously thought. Otago Department of Geology PhD student Robert Boess... 阅读全文>> 日期:2013-04-08 A structural biologist at the Florida State University College of Medicine has made discoveries that could lead scientists a step closer to understanding how life first emerged on Earth billions of years ago. Professor Michael Blaber and his team pr... 阅读全文>> 日期:2013-04-07 Men going thin on top may be more likely to have heart problems than their friends with a full head of hair, according to researchers in Japan. 日本的一项研究显示,头发稀疏的男子比浓厚头发的男子更容易患心脏疾... 阅读全文>> 日期:2013-04-07 Increasing potassium in our diets as well as cutting down on salt will reduce blood pressure levels and the risk of stroke, research in the British Medical Journal suggests. 英国医学杂志建议,日常饮食中增加钾同时减少盐摄入量将降低血压、减少中风危险... 阅读全文>> 日期:2013-04-07 NASA's Hubble Space Telescope has found the farthest supernova so far of the type used to measure cosmic distances. Supernova UDS10Wil, nicknamed SN Wilson after American President Woodrow Wilson, exploded more than 10 billion years ago. SN Wilson b... 阅读全文>> 日期:2013-04-07 The Gilbert Island reefs in the Central Pacific were once home to two species of sharks not previously reported in historic records or contemporary studies. The species were discovered in a new analysis of weapons made from shark teeth and used by 1... 阅读全文>> 日期:2013-04-07 Adlie penguins may actually benefit from warmer global temperatures, the opposite of other polar species, according to a breakthrough study by an international team led by University of Minnesota Polar Geospatial Center researchers. The study provid... 阅读全文>> 日期:2013-04-07 A custom-built programmable 3D printer can create materials with several of the properties of living tissues, Oxford University scientists have demonstrated. The new type of material consists of thousands of connected water droplets, encapsulated wi... 阅读全文>> 日期:2013-04-03 Older adults who have higher blood levels of omega-3 fatty acids -- found in fatty fish and seafood -- may be able to lower their overall mortality risk by as much as 27% and their mortality risk from heart disease by about 35%, according to a new s... 阅读全文>> 日期:2013-04-03 Tiny sea creatures no bigger than a thumbtack(图钉) are being credited for playing a key role in helping provide healthy habitats for many kinds of seafood, according to a new study by the Virginia Institute of Marine Science and U.S. Geological S... 阅读全文>> 日期:2013-04-03 One often ignored consequence of global climate change is that the Northern Hemisphere is becoming warmer than the Southern Hemisphere, which could significantly alter tropical precipitation(降水,沉淀) patterns, according to a new study by climat... 阅读全文>> 日期:2013-04-03 Beekeepers and researchers nationally are reporting growing evidence that a powerful new class of pesticides may be killing off bumblebees. Now, research at the University of Pittsburgh points toward another potential cause: metal pollution from alu... 阅读全文>> 日期:2013-04-02 A specially-adapted 'tactile helmet', developed by researchers at the University of Sheffield, could provide fire-fighters operating in challenging conditions with vital clues about their surroundings. The helmet is fitted with a number of ultrasoun... 阅读全文>> |
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