日期：2011-01-10 New research indicates the impact of rising CO2 levels in the Earth's atmosphere will cause unstoppable effects to the climate for at least the next 1000 years, causing researchers to estimate a collapse of the West Antarctic ice sheet by the year 3... 阅读全文>>

日期：2011-01-10 Mayo Clinic researchers have shown that proteins on the surface of a cell twist a viral protein（病毒蛋白） into position, allowing the virus to start infection and cause disease, all in a movement as graceful as a ballroom dance. The findings appea... 阅读全文>>

日期：2011-01-10 The surprising discovery of a supermassive black hole in a small nearby galaxy has given astronomers a tantalizing（撩人的，挑逗性的） look at how black holes and galaxies may have grown in the early history of the Universe. Finding a black hole a m... 阅读全文>>

日期：2011-01-09 In the Old West, camps sent smoke signals across distances to share key developments or strategy. Likewise, two important signaling molecules communicate across nerve cells to regulate electrical and chemical activity, neuroscientists from the UT He... 阅读全文>>

日期：2011-01-09 Babies, even those too young to talk, can understand many of the words that adults are saying and their brains process them in a grown-up way. Combining the cutting-edge technologies of MRI and MEG, scientists at the University of California, San Di... 阅读全文>>

日期：2011-01-09 Emotional crying is a universal, uniquely human behavior. When we cry, we clearly send all sorts of emotional signals. In a paper published online today in Science Express, scientists at the Weizmann Institute have demonstrated that some of these si... 阅读全文>>

日期：2011-01-07 A pair of clinical trials, conducted in part at the University of North Carolina at Chapel Hill, found that two weeks of treatment with rifaximin（利福昔明） provides significant relief of irritable bowel syndrome（肠道易激综合症） symptoms includin... 阅读全文>>

日期：2011-01-07 Using a new technology that relies on thousands of synthetic（合成的，人造的） molecules to fish for disease-specific antibodies, researchers have developed a potential method for detecting Alzheimer's disease with a simple blood test. The same meth... 阅读全文>>

日期：2011-01-07 They are the most widely produced fruit in the world and now scientists in Japan have discovered that tomatoes contain a nutrient which could tackle the onset of vascular diseases（血管疾病） . The research, published in the journal Molecular Nutrit... 阅读全文>>

日期：2011-01-07 Is the expansion of the universe accelerating for some unknown reason? This is one of the mysteries plaguing（折磨，使苦恼） astrophysics, and somewhere in distant galaxies are yet-unseen supernovae that may hold the key. Now, thanks to a telescope... 阅读全文>>

日期：2011-01-07 An international team of scientists has released data indicating that greenhouse gas uptake（摄取，领会） by continents is less than previously thought because of methane emissions from freshwater areas. John Downing, an Iowa State University profes... 阅读全文>>

日期：2011-01-07 Researchers at Wofford College discovered that a Border Collie comprehends（理解，包含） the names of over 1000 objects, differentiating between names of objects and orders to fetch them. This research deepens the findings of researchers in Germany,... 阅读全文>>

日期：2011-01-07 Calling the results extremely surprising, researchers from the University of California, Santa Barbara and Texas AM University report that methane（甲烷，沼气） gas concentrations in the Gulf of Mexico have returned to near normal levels only months... 阅读全文>>

日期：2011-01-07 If you want to be surrounded by females on the prowl（徘徊） , it pays to be cool, at least if you are a male butterfly. In an unusual example of sex role reversals（逆转，撤销） , females actively court（招致，献殷勤） males after being exposed to... 阅读全文>>

日期：2011-01-06 The oceans became oxygen-rich as they are today about 600 million years ago, during Earth's Late Ediacaran Period. Before that, most scientists believed until recently, the ancient oceans were relatively oxygen-poor for the preceding（在前的） four... 阅读全文>>

日期：2011-01-06 When methicillin（甲氧西林） -resistant S. aureus (MRSA) is carried in the nose ( nares鼻孔 ), it is a risk factor for an invasive infection, including a surgical site infection. Some studies have found that the heavier the carriage of MRSA in the n... 阅读全文>>

日期：2011-01-06 Mayo Clinic researchers have determined the lifetime risk of developing rheumatoid arthritis（风湿性关节炎） and six other autoimmune rheumatic（风湿病的） diseases for both men and women. The findings appear online in Arthritis and Rheumatism. VIDE... 阅读全文>>

日期：2011-01-05 Long before the knights of medieval（中世纪的） Europe wielded flails（连枷） or martial artists（武术家） brandished nunchucks（双截棍） , it appears that a flightless prehistoric bird used its own wings as a similar type of weapon in combat. Paleo... 阅读全文>>

日期：2011-01-05 About one-third of the human population is infected with a parasite called Toxoplasma gondii（弓形虫） , but most of them don't know it. Though Toxoplasma causes no symptoms in most people, it can be harmful to individuals with suppressed immune sys... 阅读全文>>

日期：2011-01-05 The epic（史诗的） ocean- spanning（生成，长成） journeys of the gigantic leatherback（棱皮龟） turtle in the South Atlantic have been revealed for the first time thanks to groundbreaking research using satellite tracking. Experts at the Centre for... 阅读全文>>