日期：2013-06-20 Taking inspiration from trees, scientists have developed a battery made from a sliver（梳棉，裂片） of wood coated with tin that shows promise for becoming a tiny, long-lasting, efficient and environmentally friendly energy source. Their report on t... 阅读全文>>

日期：2013-06-20 Two researchers at the University of Rochester have discovered the chemical that makes naked mole rats cancer-proof. The findings could eventually lead to new cancer treatments in people, said study authors Andrei Seluanov and Vera Gorbunova. Their... 阅读全文>>

日期：2013-06-19 A University of Calgary researcher has identified how a steroid hormone may indicate infant distress during labour and delivery. The study, published by PLOS ONE this month, suggests that a full-term, healthy baby preferentially（优先地） secretes（... 阅读全文>>

日期：2013-06-19 The value of a fuel's long-term usefulness and viability is judged through its energy return on investment; the comparison between the eventual fuel and the energy invested to create it. The energy return on investment (EROI) study published in the... 阅读全文>>

日期：2013-06-19 Ocean acidification due to rising carbon dioxide levels will reduce the density of coral skeletons, making coral reefs more vulnerable to disruption and erosion, according to a new study of corals growing where submarine springs naturally lower the... 阅读全文>>

日期：2013-06-19 Postmenopausal（绝经后的） women had better improvement in verbal learning and memory after receiving treatment with testosterone gel, compared with women who received sham（虚假的） treatment with a placebo, a new study found. Results were presente... 阅读全文>>

日期：2013-06-19 A new study confirms directly what scientists previously knew only indirectly: The poisonous rotten egg gas hydrogen sulfide is generated by our body's growing cells. Hydrogen sulfide, or H2S, is normally toxic, but in small amounts it plays a role... 阅读全文>>

日期：2013-06-19 New research from the University of Adelaide shows that weight gain and increased head size in the first month of a baby's life is linked to a higher IQ at early school age. The study was led by University of Adelaide Public Health researchers, who... 阅读全文>>

日期：2013-06-19 When it comes to honey bees, more mates is better. A new study from North Carolina State University, the University of Maryland and the U.S. Department of Agriculture (USDA) shows that genetic diversity is key to survival in honey bee colonies -- a... 阅读全文>>

日期：2013-06-19 Mannitol（甘露醇） , a sugar alcohol produced by fungi, bacteria, and algae, is a common component of sugar-free gum and candy. The sweetener is also used in the medical field -- it's approved by the FDA as a diuretic（利尿剂） to flush out excess f... 阅读全文>>

日期：2013-06-19 Researchers conclude in a new report that a global push for small hydropower（水力发电） projects, supported by various nations and also the Kyoto Protocol to reduce greenhouse gas emissions, may cause unanticipated and potentially significant losse... 阅读全文>>

日期：2013-06-19 Anyone who has ever owned a pet will tell you that it has a unique personality. Yet only in the last 10 years has the study of animal personality started to gain ground with behavioral ecologists, said Jennifer Verdolin of the National Evolutionary... 阅读全文>>

日期：2013-06-19 Women in the U.S. exposed to high levels of air pollution while pregnant were up to twice as likely to have a child with autism（孤独症） as women who lived in areas with low pollution, according to a new study from Harvard School of Public Health (... 阅读全文>>

日期：2013-06-16 Mammals possess the remarkable ability to regenerate a lost fingertip, including the nail, nerves and even bone. In humans, an amputated fingertip can sprout back in as little as two months, a phenomenon that has remained poorly understood until now... 阅读全文>>

日期：2013-06-16 States that want to reduce rates of adult smoking may consider implementing stringent（严厉的） tobacco restrictions on teens, suggests a new study by researchers at Washington University School of Medicine in St. Louis. The researchers discovered t... 阅读全文>>

日期：2013-06-16 If you are healthy and plan to start running for the first time, it is perfectly all right to put on a pair of completely ordinary 'neutral' running shoes without any special support. Even though your feet overpronate when you run -- i.e. roll inwar... 阅读全文>>

日期：2013-06-16 Ocean waters melting the undersides of Antarctic ice shelves, not icebergs calving into the sea, are responsible for most of the continent's ice loss, a study by UC Irvine and others has found. The first comprehensive survey of all Antarctic ice she... 阅读全文>>

日期：2013-06-16 After decades of laboring under other theories that never seemed to add up, a team led by biologist Rama Singh has concluded that what causes menopause（更年期） in women is men. Singh, an evolutionary geneticist, backed by computer models developed... 阅读全文>>

日期：2013-06-16 Parasites comprise（包含，组成） a large proportion of the diversity of species in every ecosystem. Despite this, they are rarely included in analyses or models of food webs. If parasites play different roles from other predators and prey, however,... 阅读全文>>

日期：2013-06-16 The commercial value of spiny lobster (Panulirus argus) in the Caribbean reaches $1 billion annually, thus making it one of the most valuable fisheries in the region. In a new study of this iconic species, Ph.D. candidate Andrew Kough and Dr. Claire... 阅读全文>>