日期：2013-06-28 The antibacterial effects of silver are well established. Now, researchers at Yonsei University in Seoul, Republic of Korea, have developed a technique to coat glass with a layer of silver ions that can prevent growth of pathogenic bacteria includin... 阅读全文>>

日期：2013-06-28 Reporting this month in Molecular Microbiology, Peter Chien and colleagues at the University of Massachusetts Amherst describe using a combination of biochemistry and mass spectrometry（质谱分析法） to trap scores of new candidate substrates of the... 阅读全文>>

日期：2013-06-28 Scientists at the University of California, Santa Cruz, have trapped the ribosome（核糖体） , a protein-building molecular machine essential to all life, in a key transitional state that has long eluded（逃避） researchers. Now, for the first time,... 阅读全文>>

日期：2013-06-27 A new report on sea level rise recommends that the State of Maryland should plan for a rise in sea level of as much as 2 feet by 2050. Led by the University of Maryland Center for Environmental Science, the report was prepared by a panel of scientif... 阅读全文>>

日期：2013-06-27 You say tomato, I say comparative transcriptomics（转录组学） . Researchers in the U.S., Europe and Japan have produced the first comparison of both the DNA sequences and which genes are active, or being transcribed, between the domestic tomato and... 阅读全文>>

日期：2013-06-27 Lemurs（狐猴） from species that hang out in big tribes are more likely to steal food behind your back instead of in front of your face. This behavior suggests that primates who live in larger social groups tend to have more social intelligence, a n... 阅读全文>>

日期：2013-06-27 Engineers at Oregon State University are studying a new approach to organize and route truck transportation that could save millions of dollars, improve the quality of life for thousands of truck drivers and make freight transportation far more effi... 阅读全文>>

日期：2013-06-27 Contrary to popular belief, crabgrass（马唐草） does not thrive in lawns, gardens and farm fields by simply crowding out other plants. A new study in ACS' Journal of Agricultural and Food Chemistry has found that the much-despised weed actually prod... 阅读全文>>

日期：2013-06-27 People who have a traumatic brain injury (TBI) may be more likely to have a future stroke, according to research that appears in the June 26, 2013, online issue of Neurology, the medical journal of the American Academy of Neurology. Both stroke and... 阅读全文>>

日期：2013-06-27 Most efforts at improving solar cells have focused on increasing the efficiency of their energy conversion, or on lowering the cost of manufacturing. But now MIT researchers are opening another avenue for improvement, aiming to produce the thinnest... 阅读全文>>

日期：2013-06-27 All stars begin their lives in groups. Most stars, including our Sun, are born in small, benign（良性的，亲切的） groups that quickly fall apart. Others form in huge, dense swarms that survive for billions of years as stellar clusters. Within such r... 阅读全文>>

日期：2013-06-26 In women who have type 2 diabetes and show signs of depression, vitamin D supplements significantly lowered blood pressure and improved their moods, according to a pilot study at Loyola University Chicago Niehoff School of Nursing. Vitamin D even he... 阅读全文>>

日期：2013-06-26 Plants possess receptors which are similar to the glutamate（谷氨酸） receptors in the brain of humans and animals. Biochemists at the Ruhr-Universitt Bochum (RUB) with colleagues from the University of Wrzburg and the Agricultural University of Chi... 阅读全文>>

日期：2013-06-26 Some homeowners living near shale gas wells appear to be at higher risk of drinking water contamination from stray gases, according to a new Duke University-led study. The scientists analyzed 141 drinking water samples from private water wells acros... 阅读全文>>

日期：2013-06-26 Using powerful computer models, researchers from Brown University have shown for the first time how different types of red blood cells interact to cause sickle cell crisis, a dangerous blockage of blood flow in capillaries（毛细血管） that causes se... 阅读全文>>

日期：2013-06-26 A team of scientists with the Wildlife Conservation Society, BirdLife International, and other groups have discovered a new species of bird with distinct plumage（翅膀，羽毛） and a loud call living not in some remote jungle, but in a capital city o... 阅读全文>>

日期：2013-06-26 North Carolina State University researchers are using video game technology to remotely control cockroaches（蟑螂） on autopilot, with a computer steering the cockroach through a controlled environment. The researchers are using the technology to tr... 阅读全文>>

日期：2013-06-25 Scientists discovered a new species of burying beetle, Nicrophorus efferens. Burying beetles are well known to most naturalists because of their large size, striking black and red colors, and interesting reproductive behaviors -- they bury small ver... 阅读全文>>

日期：2013-06-25 Most species at greatest risk from climate change are not currently conservation priorities, according to an International Union for Conservation of Nature (IUCN) study that has introduced a pioneering method to assess the vulnerability of species t... 阅读全文>>

日期：2013-06-25 Bacterial DNA may integrate into the human genome more readily in tumors than in normal human tissue, according to a new study from the University of Maryland School of Medicine's Institute for Genome Sciences. Researchers analyzed genomic sequencin... 阅读全文>>