日期：2011-06-14 The quality of interactions among married couples is affected by wives' inability to fall asleep at night, but not by husbands' sleep problems, suggests new research that will be presented Monday, June 13, in Minneapolis, Minn., at SLEEP 2011, the 2... 阅读全文>>

日期：2011-06-12 Small loans, somewhere in the neighborhood of $100 to $500 dollars, are an increasingly popular weapon in the fight to reduce poverty. Called microcredit, institutions dole out（少量发放） these monetary advances to help extremely poor people engage... 阅读全文>>

日期：2011-06-12 In recent years, UC Santa Barbara scientists showed that they could reproduce a basic superconductor（超导体） using Einstein's general theory of relativity. Now, using the same theory, they have demonstrated that the Josephson junction could be rep... 阅读全文>>

日期：2011-06-12 Five cheetah（猎豹） cubs were born May 28 to 6-year-old Amani at the Smithsonian Conservation Biology Institute in Front Royal, Va. Amani is a dedicated mother according to keepers, who have observed her nursing and grooming the cubs. This litter i... 阅读全文>>

日期：2011-06-12 Cells grow abundant when oxygen is available, and generally stop when it is scarce. Although this seems straightforward（简单的，坦率的） , no direct link ever has been established between the cellular machinery that senses oxygen and that which con... 阅读全文>>

日期：2011-06-11 Venice the City of Dreams may have one less nightmare to deal with following a finding that the frequency of extreme storm surge events generated by Adriatic Sea tempests（大风暴） could fall by about 30 per cent by 2100. A team of international sci... 阅读全文>>

日期：2011-06-11 People lose 30% of their muscle strength between the ages of 50 and 70 years. However, maintaining muscle strength in old age is enormously important in order to maintain mobility and to be able to lead an independent life and manage everyday tasks... 阅读全文>>

日期：2011-06-11 This image shows the huge plume of sulphur dioxide that spewed from Chile's Puyehue-Cordn Caulle Volcanic Complex, which lies in the Andes about 600 km south of Santiago. After lying dormant（休眠的，静止的） for more than 50 years, a series of rumb... 阅读全文>>

日期：2011-06-11 By digging a little deeper, researchers may have found a potential target for reversing the deadly blood infection sepsis（败血症） . Scientists at the University of Michigan Health System looked at microRNA, a type of RNA that does not code for a p... 阅读全文>>

日期：2011-06-10 Mutations in genes essential to survival are behind so-called orphan diseases, explaining in part why these diseases are rare and often deadly, according to a study appearing in The American Journal of Human Genetics. The new finding contrasts sharp... 阅读全文>>

日期：2011-06-10 Savvy（悟性，理解能力） career minded individuals have known for some time that ingratiating oneself to the boss and others perhaps more commonly known as 'sucking up' can help move them up the corporate ladder more quickly. However, a recent study... 阅读全文>>

日期：2011-06-10 In April 2007, teacher Irka Elsevier and then-graduate student Biance Moebius-Clune began their second inquiry unit designed to enable high school students to better understand soil science concepts through their own research and experiments. Moebiu... 阅读全文>>

日期：2011-06-10 Gazing into the depths of a pond, it's hard to miss the insects that whirl and zip beneath the surface. However, only one species of spider has joined them: the diving bell spider, Argyroneta aquatica（水蜘蛛） . 'It is an iconic animal; I had read... 阅读全文>>

日期：2011-06-09 Wildlife face many threats with spreading urbanization（都市化） , including habitat loss and inbreeding（近亲交配） when populations become fragmented and isolated. It doesn't help that there is a billion-dollar international industry dedicated to... 阅读全文>>

日期：2011-06-09 Animals and plants may not be able to evolve their way out of the threat posed by climate change, according to a UC Davis study of a tiny seashore animal. The work was published today (June 8) in the journal Proceedings of the Royal Society B. The t... 阅读全文>>

日期：2011-06-09 Scientists at Rockefeller University and The Scripps Research Institute have developed the first genetically humanized mouse model for hepatitis C（丙型肝炎） , an achievement that will enable researchers to test molecules that block entry of the he... 阅读全文>>

日期：2011-06-08 If a person's blood becomes too thick it can damage blood vessels and increase the risk of heart attacks. But a Temple University physicist has discovered that he can thin the human blood by subjecting it to a magnetic field. Rongjia Tao, professor... 阅读全文>>

日期：2011-06-08 The Tropical Rainfall Measuring Mission satellite called TRMM has the ability to see rainfall rates and heights of thunderstorm clouds within a tropical cyclone, and data from the satellite confirmed a hot tower near the center of the first tropical... 阅读全文>>

日期：2011-06-08 2 (medium-sized) solar flare, an S1-class (minor) radiation storm and a spectacular coronal（冠状物） mass ejection (CME) on June 7, 2011 from sunspot complex 1226-1227. The large cloud of particles mushroomed up and fell back down looking as if it... 阅读全文>>

日期：2011-06-05 A duo of drugs, each targeting a prime survival strategy of tumors, can be safely administered and are potentially more effective than either drug alone for advanced, inoperable melanomas（黑素瘤） , according to a phase 1 clinical trial led by Dana... 阅读全文>>