日期：2011-12-29 When it comes to love songs, female tree frogs are pretty picky（挑剔的） . According to a new study from the University of Missouri, certain female tree frogs may be remarkably attuned to the songs of mates who share the same number of chromosomes... 阅读全文>>

日期：2011-12-29 A UT Southwestern Medical Center study using a sophisticated glass mouse research model has found that multidrug-resistant tuberculosis（肺结核） (TB) is more likely caused in patients by speedy drug metabolism rather than inconsistent doses, as is... 阅读全文>>

日期：2011-12-27 Radiology researchers at The University of Texas Health Science Center at Houston (UTHealth) have found evidence that multiple sclerosis（多发性硬化） affects an area of the brain that controls cognitive, sensory and motor functioning apart from the... 阅读全文>>

日期：2011-12-27 The genetic changes underlying the evolution of new species are still poorly understood. Genetic studies in domestic animals can shed light on this process due to the rapid evolution they have undergone over the last 10,000 years. A new study descri... 阅读全文>>

日期：2011-12-27 How sildenafil（昔多芬） , the active ingredient in Viagra, can alleviate（减轻，缓和） heart problems is reported by Bochum's researchers in cooperation with colleagues from the Mayo Clinic in Rochester (Minnesota) in the journal Circulation. They... 阅读全文>>

日期：2011-12-23 Researchers have created a new type of optical device small enough to fit millions on a computer chip that could lead to faster, more powerful information processing and supercomputers. The passive optical diode is made from two tiny silicon rings m... 阅读全文>>

日期：2011-12-23 Coral reefs are extremely diverse ecosystems that support enormous biodiversity. But they are at risk. Carbon dioxide emissions are acidifying the ocean, threatening reefs and other marine organisms. New research led by Carnegie's Kenneth Schneider... 阅读全文>>

日期：2011-12-23 We've all heard it: The Internet has flattened the world, allowing social networks to spring up overnight, independent of geography or socioeconomic status. Who needs face time with the people around you when you can email, text or tweet to and from... 阅读全文>>

日期：2011-12-23 Imagine if the next coat of paint you put on the outside of your home generates electricity from light -- electricity that can be used to power the appliances and equipment on the inside. A team of researchers at the University of Notre Dame has mad... 阅读全文>>

日期：2011-12-23 Yale researchers have uncovered the molecular tricks used by bacteria to fight the effects of fluoride（氟化物） , which is commonly used in toothpaste and mouthwash to combat tooth decay. In the Dec. 22 online issue of the journal Science Express,... 阅读全文>>

日期：2011-12-23 Creating semiconductor structures for high-end optoelectronic（光电子的） devices just got easier, thanks to University of Illinois researchers. The team developed a method to chemically etch（蚀刻） patterned arrays in the semiconductor gallium ars... 阅读全文>>

日期：2011-12-22 A UCSF study shows a popular treatment for a potentially blinding eye infection is just as effective if given every six months versus annually. This randomized study on trachoma（沙眼） , the leading cause of infection-caused blindness in the world,... 阅读全文>>

日期：2011-12-22 Nine out of 10 city dwellers（居民） may have enough harmful noise exposure to risk hearing loss, and most of that exposure comes from leisure activities. Historically, loud workplaces were blamed for harmful noise levels. But researchers at the Uni... 阅读全文>>

日期：2011-12-22 Where does prejudice come from? Not from ideology（意识形态） , say the authors of a new paper. Instead, prejudice stems from a deeper psychological need, associated with a particular way of thinking. People who aren't comfortable with ambiguity（含... 阅读全文>>

日期：2011-12-22 University of Miami (UM) biology professor Akira Chiba is leading a multidisciplinary（有关各种学问的） team to develop the first systematic survey of protein interactions within brain cells. The team is aiming to reconstruct genome-wide in situ pro... 阅读全文>>

日期：2011-12-22 Any diver returning from ocean depths knows about the hazard（危险） of decompression sickness (DCS) or the bends. As the diver ascends and the ocean pressure decreases, gases that were absorbed by the body during the dive, come out of solution and,... 阅读全文>>

日期：2011-12-21 When accidents that involve traumatic（外伤的） brain injuries occur, a speedy diagnosis followed by the proper treatment can mean the difference between life and death. A research team, led by Jason D. Riley in the Section on Analytical and Functio... 阅读全文>>

日期：2011-12-21 It's rubbed on the skin to reduce signs of aging and consumed by athletes to improve endurance but scientists now have the first evidence of one of vitamin E's normal body functions. The powerful antioxidant found in most foods helps repair tears in... 阅读全文>>

日期：2011-12-21 Many cancer therapies target specific proteins that proliferate（增殖） on the outside of some cancer cells, but the therapies are imperfect and the cancer does not always respond. Since it is beneficial for doctors to know as soon as possible how a... 阅读全文>>

日期：2011-12-21 Anxious people have long been classified as hypersensitive -- they're thought to be more fearful and feel threatened more easily than their counterparts. But new research from Tel Aviv University shows that the anxious may not be hypersensitive at a... 阅读全文>>