日期：2011-01-14 A new Chandra X-ray Observatory image of Messier 82, or M82, shows the result of star formation on overdrive. At a distance of only 12 million light years, M82 provides a unique cosmic laboratory for studying conditions similar to those that existed... 阅读全文>>

日期：2011-01-14 The Crab Nebula（蟹状星云） , once considered to be a source of energy so stable that astronomers used it to calibrate their instruments, is dimming. LSU physicists Mike Cherry, Gary Case and graduate student James Rodi, together with an internation... 阅读全文>>

日期：2011-01-14 Global surface temperatures in 2010 tied 2005 as the warmest on record, according to an analysis released Wednesday by researchers at NASA's Goddard Institute for Space Studies (GISS) in New York. The two years differed by less than 0.018 degrees Fa... 阅读全文>>

日期：2011-01-14 Chickens genetically modified to prevent them spreading bird flu have been produced by researchers at the Universities of Cambridge and Edinburgh. The scientists have successfully developed genetically modified (transgenic) chickens that do not tran... 阅读全文>>

日期：2011-01-13 Scientists are reporting that so-called thirdhand smoke the invisible remains of cigarette smoke that deposits on carpeting, clothing, furniture and other surfaces may be even more of a health hazard（健康危害） than previously believed. The study,... 阅读全文>>

日期：2011-01-13 Some of the most intense emotions people feel occur during a conflict in a romantic relationship. Now, new research from Baylor University psychologists shows that how each person perceives（察觉） the other partner's emotion during a conflict great... 阅读全文>>

日期：2011-01-13 New research has found one of the smallest entities（实体，存在） in the human genome, micro-RNA, could increase the risk of limb amputation（截肢） in diabetic patients who have poor blood flow. The study by Dr Andrea Caporali and colleagues in Pro... 阅读全文>>

日期：2011-01-13 Marketing efforts that encourage mixing caffeinated（含咖啡因的） energy drinks with alcohol often try to sway young people to believe that caffeine will offset the sedating（安静的，沉着的） effects of alcohol and increase alertness and stamina（毅... 阅读全文>>

日期：2011-01-13 Scientists are reporting the development of a new, ultra-light form of frozen smoke renowned as the world's lightest solid material with amazing strength and an incredibly large surface area. The new so-called multiwalled carbon nanotube (MCNT) aero... 阅读全文>>

日期：2011-01-13 A new ultrasound technique is proving valuable in distinguishing malignant（恶性的，有害的） from benign（良性的，和蔼的） breast lesions in some patients results that could mean fewer unnecessary breast biopsies（活组织检查） , a new study shows. T... 阅读全文>>

日期：2011-01-13 Living through a natural disaster is a traumatic experience（惨痛的经历） for everyone, but especially for children. A new study by University of Miami Psychologist Annette La Greca and her collaborators, indicate that some children who directly exp... 阅读全文>>

日期：2011-01-13 Researchers from Rice University and Baylor College of Medicine (BCM) have broken one of the major roadblocks（路障，障碍） on the path to growing transplantable tissue in the lab: They've found a way to grow the blood vessels and capillaries（毛细... 阅读全文>>

日期：2011-01-12 The growing popularity of solar photovoltaic（光电的） (PV) systems across the United States has made it more important to maximize their power input. That's why UC San Diego environmental engineering professor Jan Kleissl is working on technologies... 阅读全文>>

日期：2011-01-12 The opening of buds on Douglas-fir trees each spring is the result of a complex interplay（相互影响） between cold and warm temperatures during the winter, scientists with the U.S. Forest Service's Pacific Northwest Research Station have found. Thei... 阅读全文>>

日期：2011-01-12 The results of a study recently published in the journal Biology Letters indicate that giant pandas need old-growth forests as much as bamboo forests. This work, which was completed through the collaborative（合作的） efforts of scientists from the... 阅读全文>>

日期：2011-01-10 A study that relates global energy use to economic growth, published in the January issue of BioScience, finds strong correlations between these two measures both among countries and within countries over time. The research leads the study's authors... 阅读全文>>

日期：2011-01-10 A Jackson Laboratory research team led by Professor Patsy Nishina, Ph.D., has identified a mutation（突变） in a gene that's essential for correct protein-processing in cells. Defects in protein folding are associated with a variety of abnormalities... 阅读全文>>

日期：2011-01-10 Scientists have identified the type of cell that is at the origin of brain tumors known as oligodendrogliomas（少突神经胶质瘤） , which are a type of glioma a category that defines the most common type of malignant brain tumor. In a paper published... 阅读全文>>

日期：2011-01-10 Microbloggers may think they're interacting in one big Twitterverse, but researchers at Carnegie Mellon University's School of Computer Science find that regional slang and dialects are as evident in tweets as they are in everyday conversations. Pos... 阅读全文>>

日期：2011-01-10 Most college students in the United States do not grasp the scientific basis of the carbon cycle an essential skill in understanding the causes and consequences of climate change, according to research published in the January issue of BioScience. T... 阅读全文>>