日期：2012-06-27 Online shoppers would rather receive an offer for a product or service than make their own offer, according to a study led by a Michigan State University scholar that has implications for the fast-growing e-commerce industry. The findings may come a... 阅读全文>>

日期：2012-06-27 Test performance can improve dramatically if students are offered rewards just before they are given standardized tests and if they receive the incentive（刺激的） immediately afterward, new research at the University of Chicago shows. Educators hav... 阅读全文>>

日期：2012-06-27 Obese children show greater exposure than nonobese children to a phthalate（邻苯二甲酸酯） , a chemical used to soften plastics in some children's toys and many household products, according to a new study, which found that the obesity risk increase... 阅读全文>>

日期：2012-06-27 In 1969, an exploding fireball tore through the sky over Mexico, scattering thousands of pieces of meteorite（陨星） across the state of Chihuahua. More than 40 years later, the Allende meteorite is still serving the scientific community as a rich s... 阅读全文>>

日期：2012-06-26 A team of researchers from Mount Sinai School of Medicine and four other institutions have found that young children with documented or likely allergies to milk and/or eggs, whose families were instructed on how to avoid these and other foods, still... 阅读全文>>

日期：2012-06-26 How single cell organisms like bacteria manage to react to their environment is not yet completely understood. Together with colleagues from Japan, Dr. Samir El-Mashtoly from the RUB Department of Biophysics, led by Prof. Dr. Klaus Gerwert, has gain... 阅读全文>>

日期：2012-06-26 A multi-national team led by USC with researchers hailing from the U.S., China, Pakistan and Israel has developed a system of transmitting data using twisted beams of light at ultra-high speeds -- up to 2.56 terabits per second. To put that in persp... 阅读全文>>

日期：2012-06-26 In testosterone（睾丸素） -deficient men, major weight loss was an added benefit of testosterone replacement therapy for most of the patients who participated in a new study. The results will be presented June 23 at The Endocrine Society's 94th Annu... 阅读全文>>

日期：2012-06-25 Over 15 years ago, researchers linked a defect in a gene called survival motor neuron -- or SMN -- with the fatal disease spinal muscular atrophy（肌肉萎缩） . Because SMN had a role in assembling the intracellular（细胞内的） machinery that process... 阅读全文>>

日期：2012-06-25 Engineers at the University of Wisconsin-Milwaukee (UWM) have identified a catalyst（催化剂） that provides the same level of efficiency in microbial fuel cells (MFCs) as the currently used platinum catalyst, but at 5% of the cost. Since more than 6... 阅读全文>>

日期：2012-06-25 After 10 years of archaeological investigations, researchers have concluded that Stonehenge（巨石阵） was built as a monument to unify the peoples of Britain, after a long period of conflict and regional difference between eastern and western Britai... 阅读全文>>

日期：2012-06-25 Want to nail that tune that you've practiced and practiced? Maybe you should take a nap with the same melody playing during your sleep, new provocative（刺激的） Northwestern University research suggests. The research grows out of exciting existing... 阅读全文>>

日期：2012-06-21 Mother goats do not forget the sound of their kids' voices, even a year after they have been weaned（断奶） and separated, according to scientists from Queen Mary, University of London. Writing in the journal Proceedings of the Royal Society B, Dr E... 阅读全文>>

日期：2012-06-21 A cutting-edge method developed at the University of Michigan Center for Arrhythmia Research successfully uses stem cells to create heart cells capable of mimicking the heart's crucial squeezing action. The cells displayed activity similar to most p... 阅读全文>>

日期：2012-06-21 The first unequivocal（明确的） evidence that humans in prehistoric Saharan Africa used cattle for their milk nearly 7,000 years ago is described in research by an international team of scientists, led by the University of Bristol, UK, published Jun... 阅读全文>>

日期：2012-06-21 At nearly four feet tall, the Emperor penguin is Antarctica's largest sea bird -- and thanks to films like March of the Penguins and Happy Feet, it's also one of the continent's most iconic. If global temperatures continue to rise, however, the Empe... 阅读全文>>

日期：2012-06-20 New mothers who read and write blogs may feel less alone than mothers who do not participate in a blogging community, according to family studies researchers. It looks like blogging might be helping these women as they transition into motherhood bec... 阅读全文>>

日期：2012-06-20 Biochemists at the University of California, Riverside report a new role for vitamin C in plants: promoting the production of twins and even triplets（三胞胎） in plant seeds. Daniel R. Gallie, a professor of biochemistry, and Zhong Chen, an associa... 阅读全文>>

日期：2012-06-20 Individuals in some species learn information about food, predators, and potential mates indirectly from conspecifics（同种个体） , without taking unnecessary risks by learning directly for themselves ('social learning'). Sarah Zala and Dustin Penn... 阅读全文>>

日期：2012-06-20 Researchers in Finland have found that acceptance of the site of a spent nuclear fuel repository（储藏室） can depend on gender and economic background. Writing in the International Journal of Environmental Technology and Management, the team report... 阅读全文>>