日期：2013-12-23 Researchers at the University of Utah have discovered a new aquifer（蓄水层） in the Greenland Ice Sheet that holds liquid water all year long in the otherwise perpetually（永恒地） frozen winter landscape. The aquifer is extensive, covering 27,000... 阅读全文>>

日期：2013-12-20 天气一变冷似乎特别容易感冒，于是很多人开始考虑如何避免消灭细菌，但是用热水洗手并不会像你想的那样可以杀死细菌。研究人员说，高温确实能够杀死细菌，但这种沸腾的高温是你无法忍受的。没有任何证据能够证明用热水（40-55C）洗手能杀死细菌，而且长时间用热水洗手... 阅读全文>>

日期：2013-12-19 In some mountain ranges, Earth's warming climate is driving rabbit relatives known as pikas（鼠兔） to higher elevations or wiping them out. But University of Utah biologists discovered that roly-poly pikas living in rockslides near sea level in Ore... 阅读全文>>

日期：2013-12-19 Biologists from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) have for the first time shown that amphipods（端足目） from the warmer Atlantic are now reproducing in Arctic waters to the west of Spitsbergen. This... 阅读全文>>

日期：2013-12-19 Curtin University researchers have shown natural radioactivity within DNA can alter chemical compounds, providing a new pathway for genetic mutation. The research, recently published in Biochimica et Biophysica Acta-General Subjects, for the first t... 阅读全文>>

日期：2013-12-19 A 12-year study of massive stars has reaffirmed that our Galaxy has four spiral arms, following years of debate sparked by images taken by NASA's Spitzer Space Telescope that only showed two arms. The new research, which is published online in the M... 阅读全文>>

日期：2013-12-19 The most complete sequence to date of the Neanderthal（穴居人的） genome, using DNA extracted from a woman's toe bone that dates back 50,000 years, reveals a long history of interbreeding among at least four different types of early humans living in... 阅读全文>>

日期：2013-12-15 The manner by which a mother interacts with her friends serves as a role model for how an adolescent child develops his/her own peer friendships. 妈妈们与朋友之间的相处方式，在一定程度上是给未成年孩子们处理自己同龄人间友情的一种示范。 Unfortunately,... 阅读全文>>

日期：2013-12-15 Hi, everybody. On behalf of all the Obamas-Michelle, Malia, Sasha, Bo, and the newest member of our family, Sunny-I want to wish you a happy and healthy Thanksgiving. We'll be spending today just like many of you-sitting down with family and friends... 阅读全文>>

日期：2013-12-14 The dangerous parasite Schistosoma mansoni that causes snail fever（血吸虫病） in humans could become significantly less common in the future a new international study led by researchers from the University of Copenhagen predicts. The results are su... 阅读全文>>

日期：2013-12-14 Researchers are developing a new kind of geothermal（地热的） power plant that will lock away unwanted carbon dioxide (CO2) underground -- and use it as a tool to boost electric power generation by at least 10 times compared to existing geothermal e... 阅读全文>>

日期：2013-12-14 A deadly fungus, and not climate change as is widely believed, is the primary culprit behind the rapid decline of frog populations in the Andes mountains, according to a new study published today in the journal Conservation Biology. Frogs living at... 阅读全文>>

日期：2013-12-14 A Duke research team has developed a better recipe for synthetic replacement cartilage（软骨） in joints. Combining two innovative technologies they each helped develop, lead authors Farshid Guilak, a professor of orthopedic（整形外科的） surgery an... 阅读全文>>

日期：2013-12-14 A new study presented today at the IOF Regionals 4th Asia-Pacific Osteoporosis Meeting in Hong Kong supports widespread evidence that individuals who have suffered a fracture are at significantly increased risk of subsequent hip fractures. In fact,... 阅读全文>>

日期：2013-12-14 Chimpanzees are sensitive to social influences but they maintain their own strategy to solve a problem rather than conform to（符合） what the majority of group members are doing. However, chimpanzees do change their strategy when they can obtain gr... 阅读全文>>

日期：2013-12-14 A drug now used to treat a type of lymphoma（淋巴瘤） has shown surprising benefit in preclinical studies of inflammatory breast cancer, according to a researcher at Thomas Jefferson University's Kimmel Cancer Center. The finding, published online t... 阅读全文>>

日期：2013-12-13 A nectar-feeding bat that was thought to eat insects in passing has been discovered to target its moving prey with stealth（秘密） precision, according to new research by a scientist at Queen Mary University of London. The researchers uncovered for... 阅读全文>>

日期：2013-12-13 Lawrence Livermore National Laboratory researchers have combined ultrafast time-resolved experimental measurements with theory to reveal how an explosive responds to a high-impact shock. The work involved advances in both ultrafast experimental shoc... 阅读全文>>

日期：2013-12-13 Scientists have discovered a second code hiding within DNA. This second code contains information that changes how scientists read the instructions contained in DNA and interpret mutations to make sense of health and disease. A research team led by... 阅读全文>>

日期：2013-12-13 Bacteria can evolve rapidly to adapt to environmental change. When the environment is the immune response of an infected host, this evolution can turn harmless bacteria into life-threatening pathogens. A study published on December 12 in PLOS Pathog... 阅读全文>>