12-01-12 Humans are considered the hosts for spreading epidemics. The speed at which an epidemic spreads is now better understood thanks to a new model accounting for the provincial nature of human mobility, according to a study published in EPJ B. The resea...

11-12-17 最新研究表明，智力进化是有限的，人类不可能拥有超级大脑。 A new research paper argues that there are limits to our mental evolution and that humans are not likely to ever develop a supermind. Studies of human evolution show that as natural selection,...

11-12-07 The US has publicly declared it will fight discrimination against gays and lesbians abroad by using foreign aid and diplomacy to encourage reform. 美国公开宣布，将通过国外援助和外教手腕抵制外国对男女同性恋的歧视。 US Secretary of State Hillary Clint...

11-12-02 Cortisol（皮质醇） may be the Swiss Army knife of hormones in the human body-just when scientists think they understand what it does, another function pops up. While many of these functions are understood for adults, much less is known about how cor...

11-11-15 In the last three decades, thousands of women with breast cancer have taken the drug tamoxifen（三苯氧胺） , only to discover that the therapy doesn't work, either because their tumors do not respond to the treatment at all, or because they develop...

11-11-15 A team of researchers led by the University of Colorado Boulder has discovered the first prehistoric（史前的） bronze artifact（手工艺品） made from a cast ever found in Alaska, a small, buckle-like object found in an ancient Eskimo dwelling and whi...

11-11-02 Human memory has historically defied precise scientific description, its biological functions broadly but imperfectly defined in psychological terms. In a pair of papers published in the Nov. 2 issue of The Journal of Neuroscience, researchers at th...

11-10-28 Publishing in the current issue of The Journal of Biological Chemistry, researchers at Moffitt Cancer Center in Tampa, Fla., have discovered additional mechanisms of Akt activation and suggest a component of that activation mechanism -- inhibitor of...

11-10-19 For better and for worse, human health depends on a cell's motility -- the ability to crawl from place to place. In every human body, millions of cells -are crawling around doing mostly good deeds -- though if any of those crawlers are cancerous, wa...

11-10-14 When all else is equal, human children prefer to work together in solving a problem rather than on their own. Chimpanzees, on the other hand, show no such preference. That's according to a study of 3-year-old German kindergarteners and semi-free-ran...