日期：2011-07-26 Preschool children consumed nearly twice as many vegetables and 11 percent fewer calories over the course of a day when researchers Penn State added pureed vegetables to the children's favorite foods. Childhood obesity rates are on the rise, and at... 阅读全文>>

日期：2011-07-26 BAR HARBOR Famous for their sluggishness（迟缓，萧条） , turtles have been slow to give up the secrets of their evolution and place on the evolutionary tree. For decades, paleontologists（古生物学者） who study fossils and molecular biologists who s... 阅读全文>>

日期：2011-07-26 In premenopausal（绝经前期的） women who have repeated urinary tract（泌尿道） infections (UTIs), the antibiotic trimethoprim-sulfamethoxazole (TMP-SMX) appeared more effective than cranberry（蔓越橘） capsules for preventing recurrent infections, a... 阅读全文>>

日期：2011-07-26 An increase in wildfires due to climate change could rapidly and profoundly alter the Greater Yellowstone Ecosystem, according to a new study authored by environmental engineering and geography Professor Anthony Westerling of the University of Calif... 阅读全文>>

日期：2011-07-21 A new study reveals how enzymes in the honey bee gut detoxify（使解毒） pesticides commonly used to kill mites in the honey bee hive. This is the first study to tease out（梳理） the precise molecular mechanisms that allow a pollinating（授粉） inse... 阅读全文>>

日期：2011-07-21 A consortium（财团，联合） led by scientists at the University of Oxford and Harvard Medical School has constructed the world's most detailed genetic map. A genetic map specifies the precise areas in the genetic material of a sperm or egg where the... 阅读全文>>

日期：2011-07-21 Scientists are reporting development and successful initial laboratory tests on the key ingredient（原料，要素） for a much-needed vaccine to help individuals addicted to heroin abstain from（放弃，戒绝） the illicit drug. Their study appears in ACS... 阅读全文>>

日期：2011-07-21 Astronomers using the Hubble Space Telescope discovered a fourth moon orbiting the icy dwarf planet Pluto（冥王星） . The tiny, new satellite temporarily designated P4 -- was uncovered in a Hubble survey searching for rings around the dwarf planet.... 阅读全文>>

日期：2011-07-20 Populations of spur-thighed tortoises ( Testudo graeca欧洲陆龟 ), a species classified as vulnerable and at risk of extinction, can withstand fires if outbreaks occur once every three decades or more. However, the youngest tortoises are more vulnera... 阅读全文>>

日期：2011-07-20 How is it that a disc-like cluster of cells transforms within the first month of pregnancy into an elongated（细长的） embryo? This mechanism is a mystery that man has tried to unravel（解决，阐明） for millennia. The first significant step towards... 阅读全文>>

日期：2011-07-20 Over half of all Alzheimer's disease cases could potentially be prevented through lifestyle changes and treatment or prevention of chronic medical conditions, according to a study led by Deborah Barnes, PhD, a mental health researcher at the San Fra... 阅读全文>>

日期：2011-07-20 German scientists at the Stuttgart Natural History Museum were leading in the discovery of a new insect order from the Lower Cretaceous of South America. The spectacular fossils were named Coxoplectoptera by their discoverers and their findings were... 阅读全文>>

日期：2011-07-20 U.S. Department of Agriculture (USDA) scientists have produced the first detailed data on how large-scale dairy（乳品的） facilities contribute to the emission of greenhouse gases. This research was conducted by Agricultural Research Service (ARS) s... 阅读全文>>

日期：2011-07-20 The French may have had a better chance at the Battle of Agincourt had they not been weighed down by heavy body armour, say researchers. A study published today in Proceedings of the Royal Society B shows that soldiers carrying armour in Medieval ti... 阅读全文>>

日期：2011-07-19 When the language used by financial analysts and reporters becomes increasingly similar the stock market may be overheated, say scientists. After examining 18,000 online articles published by the Financial Times, The New York Times, and the BBC, com... 阅读全文>>

日期：2011-07-19 Men who are married or in common-law relationships seek medical care sooner for heart attacks compared with single, divorced or widowed men, found a new study in CMAJ (Canadian Medical Association Journal) (pre-embargo link only) http://www.cmaj.ca/... 阅读全文>>

日期：2011-07-19 Quantum dots made from cadmium（镉） and selenium（硒） degrade in soil, unleashing toxic cadmium and selenium ions into their surroundings, a University at Buffalo study has found. The research, accepted for publication in the journal Environmental... 阅读全文>>

日期：2011-07-19 NYU School of Medicine researchers report in a new study that exposure to tobacco smoke nearly doubles the risk of hearing loss among adolescents. The study is published in the July, 2011, issue of Archives of Otolaryngology Head Neck Surgery. More... 阅读全文>>

日期：2011-07-19 A new approach to growing graphene（石墨烯） greatly reduces problems that have plagued researchers in the past and clears a path to the crystalline form of graphite's use in sophisticated electronic devices of tomorrow. Findings of researchers at t... 阅读全文>>

日期：2011-07-19 Those solar panels on top of your roof aren't just providing clean power; they are cooling your house, or your workplace, too, according to a team of researchers led by Jan Kleissl, a professor of environmental engineering at the UC San Diego Jacobs... 阅读全文>>