日期：2012-01-13 The perception（知觉） that women are scarce leads men to become impulsive, save less, and increase borrowing, according to new research from the University of Minnesota's Carlson School of Management. What we see in other animals is that when femal... 阅读全文>>

日期：2012-01-13 A new UC Davis study shows how the brain reconfigures its connections to minimize distractions（分心，干扰） and take best advantage of our knowledge of situations. In order to behave efficiently, you want to process relevant sensory information as... 阅读全文>>

日期：2012-01-13 Honeybee populations have been in serious decline for years, and Purdue University scientists may have identified one of the factors that cause bee deaths around agricultural fields. Analyses of bees found dead in and around hives from several apiar... 阅读全文>>

日期：2012-01-13 Wandering albatrosses（信天翁） have altered their foraging（觅食） due to changes in wind fields in the southern hemisphere during the last decades. Since winds have increased in intensity and moved to the south, the flight speed of albatrosses inc... 阅读全文>>

日期：2012-01-12 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... 阅读全文>>

日期：2012-01-12 Drinking alcohol leads to the release of endorphins（内啡肽） in areas of the brain that produce feelings of pleasure and reward, according to a study led by researchers at the Ernest Gallo Clinic and Research Center at the University of California,... 阅读全文>>

日期：2012-01-12 Peering deep inside the hub of the neighboring Andromeda galaxy, NASA's Hubble Space Telescope has uncovered a large, rare population of hot, bright stars. Blue is typically an indicator of hot, young stars. In this case, however, the stellar odditi... 阅读全文>>

日期：2012-01-12 A scientist at Rensselaer Polytechnic Institute and an anthropologist（人类学家） from the University at Albany teamed up to use ultra-modern chemical analysis technology at Rensselaer to analyze ancient Mayan pottery for proof of tobacco use in the... 阅读全文>>

日期：2012-01-11 Adults from 30 to 60 years old, especially those from lower socioeconomic backgrounds, aren't consuming the daily recommended levels of fruits and vegetables. Quebecers, however, eat more of nature's produce than their fellow Canadians. These are so... 阅读全文>>

日期：2012-01-11 Climate change is having a more profound effect on alpine（高山的） vegetation than at first anticipated, according to a study carried out by an international group of researchers and published in Nature Climate Change. The first ever pan-European s... 阅读全文>>

日期：2012-01-11 New research at Oregon State University provides evidence for the first time that disruption of circadian（生理节律的） rhythms -- the biological clocks found in many animals -- can clearly cause accelerated neurodegeneration, loss of motor function... 阅读全文>>

日期：2012-01-11 Scientists at the University of Leicester have opened up a whole new approach to the therapeutic intervention for a family of anti-cancer drug targets, thanks to a completely new and unexpected finding. Professor Schwabe and his colleagues, Drs Wats... 阅读全文>>

日期：2012-01-11 Your risk of heart attack may increase during the days and weeks after the death of a close loved one, according to research reported in Circulation: Journal of the American Heart Association. A study of 1,985 adult heart attack survivors showed tha... 阅读全文>>

日期：2012-01-10 As an embryo develops, different genes are turned on in different cells, to form muscles, neurons and other bodily parts. Inside each cell's nucleus, genetic sequences known as enhancers act like remote controls, switching genes on and off. Scientis... 阅读全文>>

日期：2012-01-10 Researchers have discovered that children under the age of two control speech using a different strategy than previously thought. During the study at Queen's University, the researchers changed the vowel sounds that the participants heard over headp... 阅读全文>>

日期：2012-01-10 A well-known protein complex responsible for controlling how DNA is expressed plays a previously unsuspected role in preventing pancreatic（胰腺的） cancer, according to researchers at the Stanford University School of Medicine. Technological advanc... 阅读全文>>

日期：2012-01-10 Around 250 million years ago, at the end of the Permian geologic period, there was a mass extinction so severe that it remains the most traumatic（创伤的） known species die-off in Earth's history. Although the cause of this event is a mystery, it h... 阅读全文>>

日期：2012-01-09 Drinking red wine in moderation may reduce one of the risk factors for breast cancer, providing a natural weapon to combat a major cause of death among U.S. women, new research from Cedars-Sinai Medical Center shows. The study, published online in t... 阅读全文>>

日期：2012-01-09 If they didn't have enough to worry about from dodging（避开） poachers, snow leopards, and landslides in Central Asia's rugged mountains, a population of endangered markhor（捻角山羊） -- a majestic wild goat species -- has contracted pneumonia, de... 阅读全文>>

日期：2012-01-09 Just 100 nanometers in diameter, nanowires are often considered one-dimensional. But researchers at Northwestern University have recently reported that individual gallium nitride（氮化镓） nanowires show strong piezoelectricity（压电） -- a type of... 阅读全文>>