日期：2012-04-06 American students need a dramatically new approach to improve how they learn science, says a noted group of scientists and educators led by Michigan State University professor William Schmidt. After six years of work, the group has proposed a soluti... 阅读全文>>

日期：2012-04-05 A compound found in red wine, grapes and other fruits, and similar in structure to resveratrol（白藜芦醇） , is able to block cellular processes that allow fat cells to develop, opening a door to a potential method to control obesity, according to a... 阅读全文>>

日期：2012-04-05 Defying thousands of years of conventional wisdom, scientists are reporting that it is possible for water to float on oil, a discovery they say has important potential applications in cleaning up oil spills that threaten seashores and fisheries. The... 阅读全文>>

日期：2012-04-05 A dose of carbon nanotubes more than doubles the growth rate of plant cell cultures（细胞培养） -- workhorses in the production of everything from lifesaving medications to sweeteners to dyes and perfumes -- researchers are reporting. Their study, t... 阅读全文>>

日期：2012-04-05 Awakening from anesthesia（麻醉） is often associated with an initial phase of delirious（神经错乱的） struggle before the full restoration of awareness and orientation to one's surroundings. Scientists now know why this may occur: primitive conscio... 阅读全文>>

日期：2012-04-05 It has long been recognized that autism runs in families, suggesting a substantial（大量的，实质的） genetic component to the disease. Yet few genes have so far been identified and the underlying genetic architecture of autism -- that is, how many g... 阅读全文>>

日期：2012-04-02 Have you ever been disappointed by a cantaloupe（哈密瓜，香瓜） from the grocery store? Too ripe? Not ripe enough? Luckily for you, researchers from the University of California, Davis might have found a way to make imperfectly ripe fruit a thing of... 阅读全文>>

日期：2012-04-02 When battling an epidemic of a deadly parasite, less resistance can sometimes be better than more, a new study suggests. A freshwater zooplankton（浮游动物） species known as Daphnia dentifera endures periodic epidemics of a virulent（剧毒的） yeast... 阅读全文>>

日期：2012-04-02 The use of metformin（二甲双胍） in men with prostate cancer before prostatectomy（前列腺切除术） helped to reduce certain metabolic parameters and slow the growth rate of the cancer, according to the results of a phase II study. Anthony M. Joshua,... 阅读全文>>

日期：2012-04-01 A team of international scientists working in the central Pacific has discovered that coral which has survived heat stress in the past is more likely to survive it in the future. The study, published March 30 in the journal PLoS ONE, paves the way t... 阅读全文>>

日期：2012-04-01 Women take longer to give birth today than did women 50 years ago, according to an analysis of nearly 140,000 deliveries conducted by researchers at the National Institutes of Health. The researchers could not identify all of the factors that accoun... 阅读全文>>

日期：2012-04-01 Nine out of 10 drugs successfully tested in mice and other animal models ultimately fail to work in people, and one reason may be traced back to a common fact of life for laboratory mice: they're cold, according to a researcher at the Stanford Unive... 阅读全文>>

日期：2012-04-01 Two new studies into the plumbing systems that lie under volcanoes could bring scientists closer to predicting large eruptions. International teams of researchers, led by the University of Leeds, studied the location and behaviour of magma（岩浆） c... 阅读全文>>

日期：2012-04-01 Research from North Carolina State University shows that honey bees self-medicate when their colony is infected with a harmful fungus, bringing in increased amounts of antifungal plant resins（树脂） to ward off the pathogen. The colony is willing t... 阅读全文>>

日期：2012-03-30 Scientists at the University of Guelph have found a way to successfully clone American elm trees that have survived repeated epidemics of their biggest killer -- Dutch elm（榆树） disease. The breakthrough, published March 29 in the Canadian Journal... 阅读全文>>

日期：2012-03-30 Scientists with the UBC Avalanche Research Group have been studying the impact of clear-cut logging on avalanche（雪崩） terrain in British Columbia. Understanding avalanche behavior and its destructive potential is an important factor in assessing... 阅读全文>>

日期：2012-03-30 Sooner than later, robots may have the ability to feel. In a paper published online March 26 in Advanced Functional Materials, a team of researchers from the University of Pittsburgh and the Massachusetts Institute of Technology (MIT) demonstrated t... 阅读全文>>

日期：2012-03-30 Scientists at the University of Liverpool have developed a new method to detect proteins associated with longevity, which helps further our understanding into why some animals live longer than others. The team looked at the genome of more than 30 ma... 阅读全文>>

日期：2012-03-29 A person's mere presence in a room can add 37 million bacteria to the air every hour -- material largely left behind by previous occupants and stirred up from the floor -- according to new research by Yale University engineers. We live in this micro... 阅读全文>>

日期：2012-03-29 A hidden and never before recognized layer of information in the genetic code has been uncovered by a team of scientists at the University of California, San Francisco (UCSF) thanks to a technique developed at UCSF called ribosome（核糖体） profilin... 阅读全文>>