日期：2012-07-13 Wolverines live in harsh conditions; they range over large areas of cold mountainous low-productivity habitat with persistent snow. The paper suggests wolverines take advantage of the crevices（裂缝） and boulders（岩石） of the mountainous terrain,... 阅读全文>>

日期：2012-07-13 A clever new imaging technique discovered at the University of California, Berkeley, reveals a possible plan of attack for many bacterial diseases, such as cholera（霍乱） , lung infections in cystic fibrosis（包囊性纤维症） patients and even chroni... 阅读全文>>

日期：2012-07-13 Massive explosions on the sun unleash（释放，发动） radiation that could kill astronauts in space. Now, researchers from the U.S. and South Korea have developed a warning system capable of forecasting the radiation from these violent solar storms ne... 阅读全文>>

日期：2012-07-11 The common barnyard chicken could provide some very un-common clues for fighting off diseases and might even offer new ways to attack cancer, according to a team of international researchers that includes a Texas AM University professor. James Womac... 阅读全文>>

日期：2012-07-11 A Loyola study of high school students provides new evidence that a person's circle of friends may influence his or her weight. Students were more likely to gain weight if they had friends who were heavier than they were. Conversely（相反地） , stud... 阅读全文>>

日期：2012-07-11 A clinical trial of an Alzheimer's disease treatment developed at MIT has found that the nutrient cocktail can improve memory in patients with early Alzheimer's. The results confirm and expand the findings of an earlier trial of the nutritional supp... 阅读全文>>

日期：2012-07-11 No matter how you drill it, using natural gas as an energy source is a smart move in the battle against global climate change and a good transition step on the road toward low-carbon energy from wind, solar and nuclear power. That is the conclusion... 阅读全文>>

日期：2012-07-10 Photographs of faces may not be adequate proof of a person's identity and this could have serious implications for the accuracy of passport photographs in determining identity. Research funded by the Economic and Social Research Council (ESRC) shows... 阅读全文>>

日期：2012-07-10 An international team that includes scientists from Johannes Gutenberg University Mainz (JGU) has published a reconstruction of the climate in northern Europe over the last 2,000 years based on the information provided by tree-rings. Professor Dr. J... 阅读全文>>

日期：2012-07-10 Satellite measurements show that nitrogen dioxide in the lower atmosphere over parts of Europe and the US has fallen over the past decade. More than 15 years of atmospheric observations have revealed trends in air quality. As the world's population... 阅读全文>>

日期：2012-07-10 For the first time, researchers at Aalto University in Finland have located where the sounds associated with the northern lights are created. The auroral（极光的） sounds that have been described in folktales and by wilderness wanderers are formed a... 阅读全文>>

日期：2012-07-09 On a recent expedition to the inhospitable（荒凉的） North Atlantic Ocean, scientists at the University of Washington and collaborators studying the annual growth of tiny plants were stumped to discover that the plankton（浮游生物） had started grow... 阅读全文>>

日期：2012-07-09 The effect of spaceflight on a microscopic worm -- Caenorhabditis elegans (C. elegans) -- could help it to live longer. The discovery was made by an international group of scientists studying the loss of bone and muscle mass experienced by astronaut... 阅读全文>>

日期：2012-07-09 A group of US researchers has produced a robotic set of legs which they believe is the first to fully model walking in a biologically accurate manner. The neural architecture, musculoskeletal architecture and sensory feedback pathways in humans have... 阅读全文>>

日期：2012-07-09 Humans have known for centuries that copper is a potent weapon against infection. New research shows that the bacteria that cause serious urinary tract infections know this, too, and steal copper to prevent the metal from being used against them. Bl... 阅读全文>>

日期：2012-07-06 Climate change drove coral reefs to a total ecosystem collapse lasting thousands of years, according to a paper published this week in Science. The paper shows how natural climatic shifts stopped reef growth in the eastern Pacific for 2,500 years. T... 阅读全文>>

日期：2012-07-06 A U of S-led international research team has discovered that aerosols（气溶胶） from relatively small volcanic eruptions can be boosted into the high atmosphere by weather systems such as monsoons（季风） , where they can affect global temperatures.... 阅读全文>>

日期：2012-07-06 A new study led by the University of Colorado Boulder indicates air pollution in the form of nitrogen compounds emanating from power plants, automobiles and agriculture is changing the alpine vegetation（高山植被） in Rocky Mountain National Park. T... 阅读全文>>

日期：2012-07-06 More of the United States is in moderate drought or worse than at any other time in the 12-year history of the U.S. Drought Monitor, officials from the National Drought Mitigation Center at the University of Nebraska-Lincoln said July 5. Analysis of... 阅读全文>>

日期：2012-07-05 University of Adelaide researchers have discovered that recent climate change is causing leaves of some Australian plants to narrow in size. The study, which is the first of its kind in the world, highlights that plant species are already responding... 阅读全文>>