日期：2010-11-17 Patients with head and neck cancer who have never smoked have much better survival rates after radiation therapy than patients with a history of smoking, new research from UC Davis Cancer Center has found. The study by Allen M. Chen and colleagues i... 阅读全文>>

日期：2010-11-17 Researchers at Purdue University are studying the effects of fire on steel structures, such as buildings and bridges, using a one-of-a-kind heating system and a specialized laboratory for testing large beams and other components. Building fires may... 阅读全文>>

日期：2010-11-17 While our direct knowledge of black holes in the universe is limited to what we can observe from thousands or millions of light years away, a team of Chinese physicists has proposed a simple way to design an artificial electromagnetic (EM) black hol... 阅读全文>>

日期：2010-11-16 A new analysis of fossilized（石化的） grass-pollen grains deposited on ancient European lake and sea bottoms 16-35 million years ago reveals that C4 grasses evolved earlier than previously thought. This new evidence casts doubt on the widely-held b... 阅读全文>>

日期：2010-11-16 Why would someone choose a credit card with a one percent interest rate over another with a zero percent rate? A new study in the Journal of Consumer Research finds that consumers are often flummoxed（困惑的） when it comes to zero. A reasonable ass... 阅读全文>>

日期：2010-11-16 Consumers value goals they've chosen on their own more than those that are imposed on them, according to a new study in the Journal of Consumer Research. When people believe they have autonomously（独立地） chosen to pursue a goal themselves, they f... 阅读全文>>

日期：2010-11-16 Marketers hope to connect between the consumer and the products they represent by creating a strong brand identity. Now a Tel Aviv University researcher is giving marketers a heavenly new angle to consider ― religious faith ― on which to build the... 阅读全文>>

日期：2010-11-16 UC Irvine researchers have discovered that circadian rhythms（生物周期） the internal body clock regulate fat metabolism. This helps explain why people burn fat more efficiently at certain times of day and could lead to new pharmaceuticals（药物） f... 阅读全文>>

日期：2010-11-16 Tiny molecules called microRNAs act together with hormones to control the onset of labor, raising the prospect that RNA-based drugs might be able to prevent premature labor, researchers at UT Southwestern Medical Center have discovered in a preclini... 阅读全文>>

日期：2010-11-16 Surgical items, such as sponges（海绵） and small instruments, left in the bodies of children who undergo surgery are quite uncommon and rarely fatal but decidedly dangerous and expensive mistakes, according to a Johns Hopkins Children's Center stud... 阅读全文>>

日期：2010-11-16 A Queen's University neuroscientist is launching a medical tool at the world's largest neuroscience conference in San Diego on Monday, Nov. 15. The KINARM Assessment Station will greatly improve the way healthcare workers assess patients suffering f... 阅读全文>>

日期：2010-11-16 If researchers could determine how to send signals to cells responding to a spinal cord injury, they might be able to stop one type of cell from doing additional damage at the injury site and instead, coax（哄骗） it into helping nerve cells grow. T... 阅读全文>>

日期：2010-11-12 Future computers may run a little sweeter, thanks to a refinement（精制，提纯） in the manufacture of graphene（石墨烯） at Rice University. Rice researchers have learned to make pristine（原始的） sheets of graphene, the one-atom-thick form of carb... 阅读全文>>

日期：2010-11-12 Researchers report that a drug commonly used to treat diabetes may also retard（延迟，阻止） the growth of fluid-filled cysts（囊肿） of the most common genetic disorder, polycystic kidney（多囊肾） disease. PKD does not discriminate by gender or ra... 阅读全文>>

日期：2010-11-12 The steamiest places on the planet are getting warmer. Conservative（保守的） estimates suggest that tropical areas can expect temperature increases of 3 degrees Celsius by the end of this century. Does global warming spell（意味着，招致） doom for... 阅读全文>>

日期：2010-11-12 A bulge（膨胀，凸出部分） of elevated topography（地势） on the farside of the moon--known as the lunar farside highlands--has defied explanation for decades. But a new study led by researchers at the University of California, Santa Cruz, shows that... 阅读全文>>

日期：2010-11-12 Both the bully and the victim's individual characteristics, rather than the wider social environment, explain why bullying（恃强凌弱） occurs, according to Swedish teenagers. The new study, by Dr. Robert Thornberg and Sven Knutsen from Linkping Univ... 阅读全文>>

日期：2010-11-12 Alcohol does much more harm to the body than just damaging the liver. Drinking also can weaken the immune system, slow healing, impair（损害，削弱） bone formation, increase the risk of HIV transmission and hinder（阻碍，打扰） recovery from burns,... 阅读全文>>

日期：2010-11-12 For Immediate Release Scientists from the Florida campus of The Scripps Research Institute have identified for the first time a novel mechanism that regulates circadian rhythm（生理节律） , the master clock that controls the body's natural 24-hour p... 阅读全文>>

日期：2010-11-12 Yoga has a greater positive effect on a person's mood and anxiety level than walking and other forms of exercise, which may be due to higher levels of the brain chemical GABA according to an article in The Journal of Alternative and Complementary（... 阅读全文>>