日期：2010-05-07 People aren't the only living things that suffer from stress. Trees must deal with stress too. It can come from a lack of water or too much water, from scarcity of a needed nutrient（营养物，滋养物） , from pollution or a changing climate. Helping t... 阅读全文>>

日期：2010-05-07 A residential summer weight-loss camp markedly improved obese（肥胖的） children's health, a study in the April edition of Pediatrics（小儿科） reports. A Saint Louis University physician found the camp improved children's weight, body mass index (... 阅读全文>>

日期：2010-05-07 Washing your hands wipes the slate clean（一笔勾销） , removing doubts about recent choices. That's the key finding of a University of Michigan study published in the current (May 7) issue of Science. The study, conducted by U-M psychologists（心理... 阅读全文>>

日期：2010-05-07 The onset（开始，进攻） of summer in England has been advancing since the mid 1950s, research from a pair of University of Sheffield geographers（地理学者） has shown. The investigations, conducted by Amy Kirbyshire, a former undergraduate of the Un... 阅读全文>>

日期：2010-05-07 Stem cells derived from the endometrium ( uterine lining子宫内膜 ) and transplanted into the brains of laboratory mice with Parkinson's disease appear to restore functioning of brain cells damaged by the disease, according to a new study by Yale Sch... 阅读全文>>

日期：2010-05-06 Researchers at Johns Hopkins have discovered that a compound in dark chocolate may protect the brain after a stroke by increasing cellular signals already known to shield（保护，遮蔽） nerve cells from damage. Ninety minutes after feeding mice a sin... 阅读全文>>

日期：2010-05-06 As fears grow that the Loop Current in the Gulf of Mexico could soon catch the oil slick（水面浮油） and drag it south towards coral reefs（珊瑚礁） in the Florida Keys, scientists are monitoring the situation closely with ESA's Envisat radar data.... 阅读全文>>

日期：2010-05-06 Drinking alcohol over a long period of time profoundly（深刻地，极度地） affects the brain, which adapts to the intoxicant（醉人的） and causes withdrawal symptoms（脱瘾症状，断除症状） when consumption stops. Neuroscientists from the University of... 阅读全文>>

日期：2010-05-06 Among the worrisome（令人烦恼的，麻烦的） environmental effects of global warming is the thawing of Arctic permafrost（永久冻土） ---soil that normally remains at or below the freezing point for at least a two-year period and often much longer. Moni... 阅读全文>>

日期：2010-05-06 Engineered artificial proteins that mimic the elastic properties（弹性，弹性性能） of muscles in living organisms are the subject of an article in Nature magazine to be released May 6. Our goal is to use these biomaterials in tissue engineering as a... 阅读全文>>

日期：2010-05-05 New treatments for intestinal（肠的） failure and other intestinal absorption disorders are a step closer to the patients who need them after a discovery in Kelly Tappenden's University of Illinois laboratory. There are so few therapies for persons... 阅读全文>>

日期：2010-05-05 Scientists at the University of Kentucky Markey Cancer Center have identified a key molecular mechanism in breast cancer that enables tumor cells to spread to adjacent（临近的，毗邻的） or distant parts of the body in a process called metastasis（转... 阅读全文>>

日期：2010-05-05 In people with insulin（胰岛素） resistance or full-blown diabetes（糖尿病） , an inability to keep blood sugar levels under control isn't the only problem by far. A new report in the May issue of Cell Metabolism（新陈代谢） , a Cell Press publicati... 阅读全文>>

日期：2010-05-05 With millions of gallons crude oil（原油） being spewed（喷涌，呕吐） into the Gulf of Mexico from the Deepwater Horizon oil spill（漏油，浮油） , the focus now is on shutting down the leak. However, in the cleanup efforts to come, extreme caution m... 阅读全文>>

日期：2010-05-04 A North Carolina State University researcher has discovered that bacteria transmitted by fleasand potentially tickscan be passed to human babies by the mother, causing chronic infections（慢性感染） and raising the possibility of bacterially induced... 阅读全文>>

日期：2010-05-04 An unprecedented study of bald eagle（秃鹰） diet, from about 20,000 to 30,000 years ago to the present, will provide wildlife managers with unique information for reintroducing（再引入，再提出） Bald Eagles to the Channel Islands off California. Th... 阅读全文>>

日期：2010-05-04 Trees and other plants help keep the planet cool, but rising levels of carbon dioxide in the atmosphere are turning down this global air conditioner. According to a new study by researchers at the Carnegie Institution for Science, in some regions mo... 阅读全文>>

日期：2010-05-04 A team of international researchers has brought the primary component（主要成分） of mammoth（猛犸象） blood back to life using ancient DNA preserved in bones from Siberian specimens（样本） 25,000 to 43,000 years old. Studies of recreated mammoth h... 阅读全文>>

日期：2010-05-03 Minority children often encounter racism（种族歧视） in their daily lives, and those who experience discrimination more often have more symptoms of depression, according to a study to be presented Sunday, May 2 at the Pediatric（小儿科的） Academic... 阅读全文>>

日期：2010-05-03 Researchers from the University of Leeds, UK, the Charit University Medical School and the Max Delbrck Centre for Molecular Medicine (MDC) in Berlin, Germany, have discovered a new driving force behind cancer growth. Their studies have identified ho... 阅读全文>>