日期:2016-06-27 Insects have evolved diverse types of camouflage that have played an important role in their evolutionary success. Debris-carrying, a behavior of actively harvesting and carrying exogenous materials, is among the most fascinating and complex behavio... 阅读全文>>

日期:2016-06-23 A special communication article published online by JAMA Pediatrics explores whether new paradigms in child health may emerge because of Zika virus. Peter J. Hotez, M.D., Ph.D., of the Baylor College of Medicine, Houston, Texas, suggests pediatricia... 阅读全文>>

日期:2016-06-23 Clouds may have a net warming or cooling effect on climate, depending on their thickness and altitude. Artificially formed clouds called contrails form due to aircraft effluent. In a cloudless sky, contrails are thought to have minimal effect on cli... 阅读全文>>

日期:2016-06-23 New research suggests for the first time that wild boars and wart hogs have an internal magnetic compass that helps them orient themselves as they forage for food and inhabit new areas. For the study, investigators observed 1614 wild boars at 31 dif... 阅读全文>>

日期:2016-06-23 In metal-on-metal pairings, both the shell and head of an implant consist of a cobalt-chromium-molybdenum alloy. The release of metal ions into the body has been reported as a result of implant wear. Bone loss (osteolysis) was observed in many cases... 阅读全文>>

日期:2016-06-23 Even with this winters strong El Nio, the Sierra Nevada snowpack will likely take until 2019 to return to pre-drought levels, according to a new analysis led by UCLA hydrology researchers. Additionally, they suggest their new method, which provided... 阅读全文>>

日期:2016-06-23 Fish have evolved the ability to live on land many times, challenging the perception that this extreme lifestyle shift was likely to have been a rare occurrence in ancient times, new UNSW Australia research shows. A fish out of water might seem an e... 阅读全文>>

日期:2016-06-22 A new way of recycling millions of tons of plastic garbage into liquid fuel has been devised by researchers from the University of California, Irvine and the Shanghai Institute of Organic Chemistry (SIOC) in China. Synthetic plastics are a fundament... 阅读全文>>

日期:2016-06-22 A university degree is linked to a heightened risk of developing a brain tumour, suggests a large observational study, published online in the Journal of Epidemiology Community Health. Gliomas, in particular, were more common among people who had st... 阅读全文>>

日期:2016-06-22 An international team of scientists has developed a relatively simple mathematical explanation for the rogue ocean waves that can develop seemingly out of nowhere to sink ships and overwhelm oil platforms with walls of water as much as 25 meters hig... 阅读全文>>

日期:2016-06-22 Despite their nonchalant appearance, chameleons are formidable predators, capturing their prey by whipping out their tongues with incredible precision. They can even capture preys weighing up to 30% of their own weight. In collaboration with the Mus... 阅读全文>>

日期:2016-06-21 Early mammals evolved in a burst during the Jurassic period, adapting a nocturnal lifestyle when dinosaurs were the dominant daytime predator. How these early mammals evolved night vision to find food and survive has been a mystery, but a new study... 阅读全文>>

日期:2016-06-21 Earths magnetosphere, the region of space dominated by Earths magnetic field, protects our planet from the harsh battering of the solar wind. Like a protective shield, the magnetosphere absorbs and deflects plasma from the solar wind which originate... 阅读全文>>

日期:2016-06-21 Scientists are getting closer to directly observing how and why water is essential to life as we know it. A study in this weeks Proceedings of the National Academy of Sciences provides the strongest evidence yet that proteins--the large and complex... 阅读全文>>

日期:2016-06-21 A species of wasp that is a natural enemy of a wood-boring beetle that kills black locust trees has been rediscovered, more than 100 years after the last wasp of this species was found. The discovery is significant because the wood-boring beetle, kn... 阅读全文>>

日期:2016-06-21 Oceanic manta rays-often thought to take epic migrations-might actually be homebodies, according to a new study. A Scripps Institution of Oceanography at the University of California San Diego-led research team studied satellite-tracked manta rays t... 阅读全文>>

日期:2016-06-21 A new NOAA outlook shows that many coral reefs across around the world will likely be exposed to higher-than-normal sea temperatures for an unprecedented third year in a row, leading to increased bleaching - and with no signs of stopping. While the... 阅读全文>>

日期:2016-06-19 A Washington State University researcher has found that statin drugs can dramatically lower the risk of infections in stroke patients. Doug Weeks, an adjunct professor in the Elson S. Floyd College of Medicine and director of research at St. Lukes R... 阅读全文>>

日期:2016-06-19 Researchers at the Texas Analog Center of Excellence (TxACE) at UT Dallas are working to develop an affordable electronic nose that can be used in breath analysis for a wide range of health diagnosis. While devices that can conduct breath analysis u... 阅读全文>>

日期:2016-06-19 A simulation of the powerful jets generated by supermassive black holes at the centers of the largest galaxies explains why some burst forth as bright beacons visible across the universe, while others fall apart and never pierce the halo of the gala... 阅读全文>>

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