日期：2010-12-03 A team of physicists from the University of Toronto and Rutgers University have mimicked the explosion of a supernova（超新星） in miniature（小型，小规模） . A supernova is an exploding star. In a certain type of supernova, the detonation（爆炸） s... 阅读全文>>

日期：2010-12-03 The jaws of adolescent great white sharks may be too weak to capture and kill large marine mammals, according to a new study published in the Journal of Biomechanics（生物力学） by an international team of scientists. The researchers also found that... 阅读全文>>

日期：2010-12-02 Southampton researchers have estimated that sea-level rose by an average of about 1 metre per century at the end of the last Ice Age, interrupted by rapid 'jumps' during which it rose by up to 2.5 metres per century. The findings, published in Globa... 阅读全文>>

日期：2010-12-02 A gene that controls part of the 'tick tock' in a plant's circadian（生理节奏的） clock has been identified by UC Davis researchers. And not only is the plant gene very similar to one in humans, but the human gene can work in plant cells -- and vice... 阅读全文>>

日期：2010-12-02 The planet GJ 1214b was discovered in 2009 using the HARPS instrument on ESO's 3.6-metre telescope in Chile (eso0950 - http://www.eso.org/public/news/eso0950/). Initial findings suggested that this planet had an atmosphere, which has now been confir... 阅读全文>>

日期：2010-12-02 Astronomers have discovered that small, dim（暗淡的，昏暗的） stars known as red dwarfs are much more prolific（多产的，丰富的） than previously thoughtso much so that the total number of stars in the universe is likely three times bigger than reali... 阅读全文>>

日期：2010-12-01 Seeking to detect mysterious, ultra-high-energy neutrinos（中微子） from distant regions of space, a team of astronomers used the Moon as part of an innovative telescope system for the search. Their work gave new insight on the possible origin of th... 阅读全文>>

日期：2010-12-01 A new report in the December Cell Metabolism identifies a protein without which diets high in saturated fat（饱和脂肪） lead to a massive inflammatory（炎症的） response that can prove fatal. The studies in mice suggest that deficiencies in this pro... 阅读全文>>

日期：2010-12-01 For years, it was believed that obese women were at lower risk for developing osteoporosis（骨质疏松症） , and that excess body fat actually protected against bone loss. However, a study presented today at the annual meeting of the Radiological Soci... 阅读全文>>

日期：2010-12-01 Our brains are packed with cholesterol（胆固醇） , almost all of which has to be produced within the brain itself, where it is critical for normal brain functions. Now, a new study in the December Cell Metabolism, a Cell Press publication, reveals h... 阅读全文>>

日期：2010-12-01 The risk of dying from a heat wave is highest when heat waves occur early in the summer and are hotter and longer than usual, according to a Yale study published in the journal Environmental Health Perspectives (EHP). During the first heat wave of a... 阅读全文>>

日期：2010-12-01 Rush University Medical Center has just enrolled the first U.S. patient in an international clinical trial testing a novel drug to treat certain kinds of melanoma（黑素瘤） , a deadly skin cancer that in its advanced stages currently has few effecti... 阅读全文>>

日期：2010-11-30 You pick up a bottle of pomegranate juice（石榴汁） at the store because you've learned that, although it costs more than most juices, it is replete（充满的） with antioxidants that bring health benefits. But wait: Is the juice you've purchased real... 阅读全文>>

日期：2010-11-30 Long a staple（主要的，常用的） of nature documentaries, the somewhat bizarre（奇异的） development of a grub-like pink marsupial（有袋的） embryo outside the mother's womb is curious in another way. Duke University researchers have found that the d... 阅读全文>>

日期：2010-11-30 One person correctly remembers four of eight items just seen but is fuzzy（模糊的，失真的） on details. Another person recalls only two of the items but with amazingly precise clarity. So what ability translates to higher IQ? According to a Universi... 阅读全文>>

日期：2010-11-30 Adolescents and young adults are most likely to abuse prescription medications. Yet prescription rates for controlled medications, or drugs the Drug Enforcement Administration deems（认为，视作） as having the potential for abuse, have nearly double... 阅读全文>>

日期：2010-11-30 Walking may slow cognitive decline in adults with mild cognitive impairment (MCI) and Alzheimer's disease, as well as in healthy adults, according to a study presented today at the annual meeting of the Radiological Society of North America (RSNA).... 阅读全文>>

日期：2010-11-30 With the emergence of an epidemic of obesity and type 2 diabetes (DM) throughout the world, the association of lifestyle habits that may affect the risk of metabolic diseases（代谢性疾病） is especially important. Most prospective studies have shown... 阅读全文>>

日期：2010-11-30 As the U.S. Environmental Protection Agency weighs whether to define coal ash as hazardous waste（有害垃圾） , a Duke University study identifies new monitoring protocols and insights that can help investigators more accurately measure and predict t... 阅读全文>>

日期：2010-11-30 The number of people infected with HIV/AIDS in sub-Saharan Africa is projected to far outstrip（胜过） available resources for treatment by the end of the decade, forcing African nations to make difficult choices about how to allocate（分配） inadeq... 阅读全文>>