日期：2010-11-30 Gold nanoparticles, tiny pieces of gold so small that they can't be seen by the naked eye, are used in electronics, healthcare products and as pharmaceuticals（药物） to fight cancer. Despite their positive uses, the process to make the nanoparticle... 阅读全文>>

日期：2010-11-29 Every 5C rise in maximum temperature pushes up the rate of hospital admissions for serious injuries among children, reveals one of the largest studies of its kind published online in Emergency Medicine Journal. Conversely（相反地） , each 5 C drop i... 阅读全文>>

日期：2010-11-29 Scientists at the Gladstone Institute of Neurological Disease (GIND) in San Francisco have discovered a new strategy to prevent memory deficits in a mouse model of Alzheimer's disease (AD). Humans with AD and mice genetically engineered to simulate... 阅读全文>>

日期：2010-11-29 Interest in developing alternative energy（替代能源） sources is driving the consideration of a promising technology that uses underwater turbines（涡轮） to convert ocean tidal（潮汐） flow energy into electricity. Now lessons learned from the ocea... 阅读全文>>

日期：2010-11-26 There's good news for women with epilepsy（癫痫） . Breastfeeding your baby while taking your seizure medication may have no harmful effect on your child's IQ later on, according to a study published in the November 24, 2010, online issue of Neurolo... 阅读全文>>

日期：2010-11-26 Physicists from the University of Bonn have developed a completely new source of light, a so-called Bose-Einstein condensate（冷凝物，浓缩物） consisting of photons. Until recently, expert had thought this impossible. This method may potentially be... 阅读全文>>

日期：2010-11-26 According to a new study, a brief writing exercise can help women in college physics classes improve their academic performance and reduce some of the well-documented differences between male and female science students. The writing exercise seems p... 阅读全文>>

日期：2010-11-26 Researchers demonstrate that the extinction of dinosaurs 65 million years ago made way for mammals to get bigger - about a thousand times bigger than they had been. The study, which is published in the prestigious（有名望的） journal Science, is the... 阅读全文>>

日期：2010-11-24 Even though most people are aware that good oral health is essential for the overall health of both mother and child, misunderstandings about the safety of dental（牙科的） care during pregnancy may cause pregnant women to avoid seeing their dentist... 阅读全文>>

日期：2010-11-24 The venus flytrap（捕蝇草） plant captures its prey when it senses the presence of an insect on the tips of its leaves. An amphiphilic（两性分子的） molecule designed by chemists at The City College of New York acts in a similar manner by changing i... 阅读全文>>

日期：2010-11-24 Lions, bears, monkeys, crocodiles, parrots and iguanas（美洲蜥蜴） may seem inoffensive at first glance（乍一看） when they're behind bars in zoos. But some exotic species can escape and become invasive species. This has been confirmed by a scientif... 阅读全文>>

日期：2010-11-24 A new study determined that African Americans who smoke cigarettes have a higher risk of developing rheumatoid arthritis ( RA风湿性关节炎 ). RA risk is more pronounced（显著的，断然的） among individuals positive for the HLA-DRB1 shared epitope（表... 阅读全文>>

日期：2010-11-24 Breast cancer stem cells (CSCs), the aggressive cells thought to be resistant to current anti-cancer therapies and which promote metastasis（转移，新陈代谢） , are stimulated by estrogen（雌性激素） via a pathway that mirrors normal stem cell develo... 阅读全文>>

日期：2010-11-24 If you're lucky, it will all be kisses and hugs around the Thanksgiving dinner table, with friends and family near and dear gathered about, and puppies gathered around your feet waiting for table scraps（残羹剩饭） . But peace won't reign（统治，支... 阅读全文>>

日期：2010-11-24 Most living plant and animal species have a certain, relatively small, amount of variation in their genetic make-up. Differences in height, skin and eye color of humans, for example, are very noticeable（显而易见的，显著的） , but are actually the c... 阅读全文>>

日期：2010-11-24 A systematic study of phase changes in vanadium dioxide（二氧化钒） has solved a mystery that has puzzled scientists for decades, according to researchers at the Department of Energy's Oak Ridge National Laboratory. Scientists have known that vanadi... 阅读全文>>

日期：2010-11-24 A daily dose of an oral antiretroviral drug（抗逆转录病毒药物） , currently approved to treat HIV infection, reduced the risk of acquiring HIV infection by 43.8 percent among men who have sex with men. The findings, a major advance in HIV prevention... 阅读全文>>

日期：2010-11-23 A new study from the Harvard School of Public Health (HSPH) finds that high body mass index ( BMI身体质量指数 ) in developing countries remains primarily a problem of the rich. The findings suggest that the shift towards overweight and obesity among... 阅读全文>>

日期：2010-11-23 The same powerful drugs that have extended the lives of countless people with HIV come with a price insulin resistance that can lead to diabetes and cardiovascular disease（心血管疾病） . Now, researchers at Washington University School of Medicine... 阅读全文>>

日期：2010-11-23 Purdue University scientists have found the last undiscovered gene responsible for the production of the amino acid（氨基酸） phenylalanine, a discovery that could lead to processes to control the amino acid to boost plants' nutritional values and p... 阅读全文>>