日期:2016-04-29 People who have had a traumatic brain injury (TBI) may still have sleep problems a year and a half after being injured, according to a study published in the April 27, 2016, online issue of Neurology, the medical journal of the American Academy of N... 阅读全文>>

日期:2016-04-29 Forest scientists have found an unexpected silver lining to the insect outbreaks that have ravaged millions of trees across western North America. While insect outbreaks leave trees looking like matchsticks, a new University of Vermont-led study fin... 阅读全文>>

日期:2016-04-29 Two-dimensional phosphane, a material known as phosphorene, has potential application as a material for semiconducting transistors in ever faster and more powerful computers. But theres a hitch. Many of the useful properties of this material, like i... 阅读全文>>

日期:2016-04-28 In the world of chemistry, one minus one almost always equals zero. But new research from Northwestern University and the Centre National de la Recherche Scientifique (CNRS) in France shows that is not always the case. And the discovery will change... 阅读全文>>

日期:2016-04-28 Researchers at University of Montreal have created a programmable DNA thermometer that is 20,000x smaller than a human hair. This scientific advance reported this week in the journal Nano Letters may significantly aid our understanding of natural an... 阅读全文>>

日期:2016-04-28 Evolution can go quickly when it has to - at least for small organisms. Researchers exposed a natural setting in Denmark to artificial climate change and discovered that soil just half a degree warmer caused the genome of small worms to change surpr... 阅读全文>>

日期:2016-04-28 Rio is a California sea lion who can solve IQ tests that many people have trouble passing. In fact, she is so smart that scientists at the Long Marine Lab at the University of California, Santa Cruz designed a series of tests that prove she is the f... 阅读全文>>

日期:2016-04-27 A study led by researchers at Lund University in Sweden shows that ravens are as clever as chimpanzees, despite having much smaller brains, indicating that rather than the size of the brain, the neuronal density and the structure of the birds brains... 阅读全文>>

日期:2016-04-27 Drought could render the U.S. Northeasts mixed forests unsustainable after 2050 while Washingtons Cascade Mountains may require tropical and subtropical forest species, according to researchers using a new type of mathematical model at Washington St... 阅读全文>>

日期:2016-04-27 Chewbacca, the fictional Star Wars character, has given his name to a new species of flightless beetle, discovered in New Britain, Papua New Guinea. Although Trigonopterus chewbacca was only one of the four black new weevil beetles found during the... 阅读全文>>

日期:2016-04-27 Peering to the outskirts of our solar system, NASAs Hubble Space Telescope has spotted a small, dark moon orbiting Makemake, the second brightest icy dwarf planet -- after Pluto -- in the Kuiper Belt. The moon -- provisionally designated S/2015 (136... 阅读全文>>

日期:2016-04-22 In rare instances, DNA is known to have jumped from one species to another. If a parasites DNA jumps to its hosts genome, it could leave evidence of that parasitic interaction that could be found millions of years later -- a DNA fossil of sorts. An... 阅读全文>>

日期:2016-04-22 A research team led by Associate Professor Miyake Chikahiro and PhD student Takagi Daisuke from the Kobe University Graduate School of Agricultural Science have reproduced the reaction in which harmful reactive oxygen species are created during plan... 阅读全文>>

日期:2016-04-22 Researchers believe that genetically modified bacteria can help explain how a developing animal keeps all of its parts and organs in the same general proportions as every other member of its species. In 1952, Alan Turing mathematically demonstrated... 阅读全文>>

日期:2016-04-22 People who go to bed wary of potential danger sometimes pledge to sleep with one eye open. A new Brown University study finds that isnt too far off. On the first night in a new place, the research suggests, one brain hemisphere remains more awake th... 阅读全文>>

日期:2016-04-21 Patients receiving cancer treatment could increase their chance of survival by up to 20% and help stop their cancer from spreading by taking a low-dose of aspirin, new research suggests. In a systematic review of the available scientific literature... 阅读全文>>

日期:2016-04-21 A study undertaken by scientists from the University of Alberta and Environment and Climate Change Canada to understand swimming behavior in polar bears is showing an increase in this behavior related to changes in the amount and location of summer... 阅读全文>>

日期:2016-04-21 Bacteria possess the ability to take up DNA from their environment, a skill that enables them to acquire new genes for antibiotic resistance or to escape the immune response. Scientists have now mapped the core set of genes that are consistently con... 阅读全文>>

日期:2016-04-21 A team of researchers from across the country, led by Alexander Spott, University of California, Santa Barbara, USA, have built the first quantum cascade laser on silicon. The advance may have applications that span from chemical bond spectroscopy a... 阅读全文>>

日期:2016-04-21 Seven fossil teeth exposed by the Panama Canal expansion project are the first evidence of a monkey on the North American continent before the Isthmus of Panama connected it to South America 3.5 million years ago. A team including Carlos Jaramillo,... 阅读全文>>

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