文章列表

• 1.植物组织生长研究获突破
• Plants grow upward from a tip of undifferentiated tissue called the shoot apical（顶上的） meristem（分生组织） . As the tip extends, stem cells at th...
• 2.荧光灯可能将新光源被取代
• Say goodbye to that annoying buzz created by overhead fluorescent light（荧光灯） bulbs in your office. Scientists at Wake Forest University have deve...
• 3.人的嫉妒心与身高有关
• Short people should pray for a return to the Seventies fashion of stack heels, for the power of jealousy depends on how tall you are, the British week...
• 4.谋杀案件像传染病一样扩散
• Homicide（杀人） moves through a city in a process similar to infectious disease, according to a new study that may give police a new tool in tracking...
• 5.肥胖儿童更易受食品广告的影响
• Rates of childhood obesity have tripled in the past 30 years, and food marketing has been implicated as one factor contributing to this trend. Every y...
• 6.降低生物燃料的成本
• One reason that biofuels are expensive to make is that the organisms used to ferment（发酵） the biomass cannot make effective use of hemicellulose（半...
• 7.某些动物如何避免近亲交配
• Paternal recognition -- being able to identify males from your father's line -- is important for the avoidance of inbreeding（近亲交配） , and one way...
• 8.美国大峡谷已存在七千万年
• An analysis of mineral grains from the bottom of the western Grand Canyon indicates it was largely carved out by about 70 million years ago -- a time ...
• 9.生产化学物质的更好方法
• Bulk solvents, widely used in the chemical industry, pose a serious threat to human health and the environment. As a result, there is growing interest...
• 10.周三是一星期中最郁闷的一天
• If you struggled to get up for work on Wednesdays, there could be a good reason--it is the day our mood reaches its lowest point. Psychologists have f...