日期：2014-03-27 Wild salamanders（蝾螈） living in some of North America's best salamander habitat are getting smaller as their surroundings get warmer and drier, forcing them to burn more energy in a changing climate. That's the key finding of a new study, publish... 阅读全文>>

日期：2014-03-27 Goats learn how to solve complicated tasks quickly and can recall how to perform them for at least 10 months, which might explain their remarkable ability to adapt to harsh environments, say researchers at Queen Mary University of London. Writing in... 阅读全文>>

日期：2014-03-27 In a study that included nearly 300,000 adults without a known history of diabetes or cardiovascular disease (CVD), adding information about glycated hemoglobin ( HbA1c糖化血红蛋白 ), a measure of longer-term blood sugar control, to conventional CVD... 阅读全文>>

日期：2014-03-27 It is probably not a good idea to shop for leisure travel from the office during business hours, according to a new study from Rice University and Iowa State University. Using data from a major online hotel reservation site, the study examined the q... 阅读全文>>

日期：2014-03-27 Northeastern University professor of pharmaceutical sciences, Tania Konry, has developed a single instrument that can conduct a wide range of biological scans in a fraction of the time and cost of industry standard equipment. That's because it uses... 阅读全文>>

日期：2014-03-27 The Phalaenopsis orchid, also known as the moth orchid, is the most important pot flower（盆花） in terms of market value in the world's major floriculture（花卉栽培） markets. Because nitrogen significantly affects the growth and flowering of Phala... 阅读全文>>

日期：2014-03-27 Researchers at the Georgia Institute of Technology and the Joint BioEnergy Institute have engineered a bacterium to synthesize pinene（蒎烯） , a hydrocarbon produced by trees that could potentially replace high-energy fuels, such as JP-10, in missi... 阅读全文>>

日期：2014-03-26 Children who repeatedly play violent video games are learning thought patterns that will stick with them and influence behaviors as they grow older, according to a new study by Iowa State University researchers. The effect is the same regardless of... 阅读全文>>

日期：2014-03-26 Black and gray markets for computer hacking tools, services and byproducts such as stolen credit card numbers continue to expand, creating an increasing threat to businesses, governments and individuals, according to a new RAND Corporation study. On... 阅读全文>>

日期：2014-03-26 Computer chips have stopped getting faster: The regular performance improvements we've come to expect are now the result of chipmakers' adding more cores, or processing units, to their chips, rather than increasing their clock speed. In theory, doub... 阅读全文>>

日期：2014-03-26 How does the Arctic tern (a sea bird) fly more than 80,000 miles in its roundtrip（往返） North Pole-to-South Pole migration? How does the Emperor penguin incubate（孵化） eggs for months during the Antarctic winter without eating? How does the Rufo... 阅读全文>>

日期：2014-03-26 A research team in Spain has the enviable job of testing out new electromechanical（电动机械的） gear for potential use in future missions to the Red Planet. They do it within their Mars environmental simulation chamber, which is specially designed... 阅读全文>>

日期：2014-03-26 Researchers recently noticed that the remains of woolly mammoths from the North Sea often possess a 'cervical' (neck) rib -- in fact, 10 times more frequently than in modern elephants (33.3% versus 3.3%). In modern animals, these cervical ribs（颈肋... 阅读全文>>

日期：2014-03-25 A joint study by researchers at the University of California, San Diego and the University of Toronto has found that a computer system spots real or faked expressions of pain more accurately than people can. The work, titled Automatic Decoding of De... 阅读全文>>

日期：2014-03-25 Hotel guests can be gently persuaded to reduce the number of towels they use each day, psychology researchers at the University of Luxembourg have found. With fewer towels to wash, this reduces the waste of water, energy and detergent（清洁剂） . Th... 阅读全文>>

日期：2014-03-25 The top predators of the Southern Ocean, far-ranging seabirds, are tied both to the health of the ocean ecosystem and to global climate regulation through a mutual relationship with phytoplankton（浮游植物） , according to newly published work from... 阅读全文>>

日期：2014-03-25 The experimental and numerical study of the behaviour of polymers in concentrated solutions is a line of research that is still highly active. In the past, it enabled us to understand why materials like rubber have certain elastic（弹性的） properti... 阅读全文>>

日期：2014-03-25 Titanium alloy（钛合金） golf clubs can cause dangerous wildfires, according to UC Irvine scientists. When a club coated with the lightweight metal is swung and strikes a rock, it creates sparks that can heat to more than 3,000 degrees Fahrenheit fo... 阅读全文>>

日期：2014-03-25 The massive genome of the loblolly pine -- around seven times bigger than the human genome -- is the largest genome sequenced to date and the most complete conifer（针叶树） genome sequence ever published. This achievement marks the first big test o... 阅读全文>>

日期：2014-03-25 The climate is warming in the arctic at twice the rate of the rest of the globe creating a longer growing season and increased plant growth, which captures atmospheric carbon, and thawing（融化） permafrost, which releases carbon into the atmosphere... 阅读全文>>