日期：2014-09-16 Astronomers searching the atmospheres of alien worlds for gases that might be produced by life can't rely on the detection of just one type, such as oxygen, ozone, or methane, because in some cases these gases can be produced non-biologically, accor... 阅读全文>>

日期：2014-09-16 Thoughts of the family tree may not be uppermost in the mind of a person suffering from a slipped disc, but those spinal discs provide a window into our evolutionary past. They are remnants of the first vertebrate skeleton, whose origins now appear... 阅读全文>>

日期：2014-09-16 The central mystery of quantum mechanics is that small chunks of matter sometimes seem to behave like particles, sometimes like waves. For most of the past century, the prevailing explanation of this conundrum has been what's called the Copenhagen i... 阅读全文>>

日期：2014-09-16 Inflammation may be the reason high blood sugar levels damage blood vessels, raising the possibility that anti-inflammatory medications might someday be used to lower the risk of blood vessel disease in people with diabetes, according to a study pre... 阅读全文>>

日期：2014-09-16 Cloud computing involves displacing data storage and processing from the user's computer on to remote servers. It can provide users with more storage space and computing power that they can then access from anywhere in the world rather than having t... 阅读全文>>

日期：2014-09-16 NASA's Alice ultraviolet (UV) spectrograph aboard the European Space Agency's Rosetta comet orbiter has delivered its first scientific discoveries. Rosetta, in orbit around comet 67P/Churyumov-Gerasimenko, is the first spacecraft to study a comet up... 阅读全文>>

日期：2014-09-15 When people practice simple word classification tasks before nodding off -- knowing that a cat is an animal or that flipu isn't found in the dictionary, for example -- their brains will unconsciously continue to make those classifications even in sl... 阅读全文>>

日期：2014-09-15 Living cells are like miniature factories, responsible for the production of more than 25,000 different proteins with very specific 3-D shapes. And just as an overwhelmed assembly line can begin making mistakes, a stressed cell can end up producing... 阅读全文>>

日期：2014-09-15 One third of men in academic science are willing to scale back their careers to focus on family life, according to researchers. While traditional fatherhood roles may be shifting, men in the male-dominated field of academic science, such as physics... 阅读全文>>

日期：2014-09-15 Bacteria that normally live in and upon us have genetic blueprints that enable them to make thousands of molecules that act like drugs, and some of these molecules might serve as the basis for new human therapeutics, according to UC San Francisco re... 阅读全文>>

日期：2014-09-15 Researchers at Chalmers University of Technology are first to show the use of sound to communicate with an artificial atom. They can thereby demonstrate phenomena from quantum physics with sound taking on the role of light. The results will be publi... 阅读全文>>

日期：2014-09-15 A strange thing happened on the way to dealing with climate change: Advances in hydraulic fracturing put trillions of dollars' worth of previously unreachable oil and natural gas within humanity's grasp. The environmental costs -- and benefits -- fr... 阅读全文>>

日期：2014-09-15 Brain inflammation can rapidly disrupt our ability to retrieve complex memories of similar but distinct experiences, according to UC Irvine neuroscientists Jennifer Czerniawski and John Guzowski. Their study -- which appears today in The Journal of... 阅读全文>>

日期：2014-09-11 G protein-coupled receptors (GPCRs) are the largest class of cell surface receptors in our cells, involved in signal transmission across the cell membrane. One of the biggest questions is how a signal recognized at the extracellular side of a GPCR i... 阅读全文>>

日期：2014-09-11 A team of scientists led by Carnegie's Jacqueline Faherty has discovered the first evidence of water ice clouds on an object outside of our own Solar System. Water ice clouds exist on our own gas giant planets -- Jupiter, Saturn, Uranus, and Neptune... 阅读全文>>

日期：2014-09-11 Artificial membranes mimicking those found in living organisms have many potential applications ranging from detecting bacterial contaminants in food to toxic pollution in the environment to dangerous diseases in people. Now a group of scientists in... 阅读全文>>

日期：2014-09-11 Led by Itsik Pe'er, associate professor of computer science at Columbia Engineering, a team of researchers has created a data resource that will improve genomic research in the Ashkenazi Jewish population and lead to more effective personalized medi... 阅读全文>>

日期：2014-09-11 People living in more liberal countries are happier on average than those in less liberal countries, but individually, conservatives are happier than liberals no matter where they live, according to a study of people in 16 Western European countries... 阅读全文>>

日期：2014-09-11 A team of European researchers has become one of the first groups to successfully synthesize the 2D material germanene. Dubbed a 'cousin of graphene', the material, which is made up of just a single layer of germanium atoms, is expected to exhibit i... 阅读全文>>

日期：2014-09-11 As many as one-third of previously published randomized clinical trials could be re-analyzed in ways that modify the conclusions of how many or what types of patients need to be treated, according to a new study by researchers at the Stanford Univer... 阅读全文>>