日期：2011-12-11 More peer-reviewed scientific studies of the effects on wildlife of large-scale solar energy developments and operations are needed to adequately assess their impact, especially in the desert Southwest, according to a scientific literature review co... 阅读全文>>

日期：2011-12-11 Pig stem cell research conducted by two animal scientists at the University of Georgia reveals a better way to determine the safety of future stem cell therapies than rodent-based models. Rodent studies are likely inadequate for testing many human t... 阅读全文>>

日期：2011-12-11 An unusually hot melting season in 2010 accelerated ice loss in southern Greenland by 100 billion tons -- and large portions of the island's bedrock rose an additional quarter of an inch in response. That's the finding from a network of nearly 50 GP... 阅读全文>>

日期：2011-12-09 Scientists have used satellite data from NASA-built Landsat missions to confirm that more than 20 years of warming temperatures in northern Quebec, Canada, have resulted in an increase in the amount and extent of shrubs（灌木） and grasses. For the... 阅读全文>>

日期：2011-12-09 A study of South American songbirds（黄莺） completed by the Department of Biology at Queen's University and the Argentine Museum of Natural History, has discovered these birds differ dramatically in colour and song yet show very little genetic diff... 阅读全文>>

日期：2011-12-09 Food prices are soaring at the same time as Earth's population is nearing 9 billion. As a result the need for increased crop yields is extremely important. New research led by Carnegie's Wolf Frommer into the system by which sugars are moved through... 阅读全文>>

日期：2011-12-09 Shifting a fraction of truck-borne freight（货运） onto trains would have an outsized impact on air quality in the Midwest, according to researchers at the University of Wisconsin-Madison. Much of that impact boils down to simple efficiency, accordi... 阅读全文>>

日期：2011-12-09 Normally used to spot where people live, satellite images of nighttime lights can help keep tabs on the diseases festering（溃烂） among them, too, according to new research. Princeton University-led researchers report in the journal Science Dec. 9... 阅读全文>>

日期：2011-12-07 Scientists have shown the energy conditions, under which a weak signal supplied to a physical system emerges as a stronger signal at the output thanks to the presence of random noise (a process known as stochastic随机的 resonance), in a paper that h... 阅读全文>>

日期：2011-12-07 Scientists have developed important new insight into the sensitivity of global temperature to changes in Earth's radiation balance over the last half million years. The sensitivity of global temperature to changes in Earth's radiation balance (clima... 阅读全文>>

日期：2011-12-07 Mayo Clinic in Florida is now offering kidney and pancreas（胰腺） transplants to HIV positive patients with advanced kidney disease and diabetes. Evidence is now solid that HIV-positive patients have the same favorable outcome in terms of patient a... 阅读全文>>

日期：2011-12-07 A new species of horned dinosaur was just announced by an international team of scientists led by Alf Museum staff, 95 years after the initial discovery of the fossil. The animal, named Spinops sternbergorum, lived approximately 76 million years ago... 阅读全文>>

日期：2011-12-06 A team of scientists from the University of California, Riverside recently rediscovered the rarest species of bumblebee in the United States, last seen in 1956, living in the White Mountains of south-central New Mexico. Known as Cockerell's Bumblebe... 阅读全文>>

日期：2011-12-06 Global carbon dioxide emissions from burning fossil fuels have increased by 49 per cent in the last two decades, according to the latest figures by an international team, including researchers at the Tyndall Centre for Climate Change Research, Unive... 阅读全文>>

日期：2011-12-06 A new analysis of national survey data finds that less than one-quarter of parents of overweight children recall ever being told by a doctor or other health care provider that their children were overweight. And although that percentage has increase... 阅读全文>>

日期：2011-12-06 University of California, Berkeley, astronomers have discovered the largest black holes to date - two monsters with masses equivalent to 10 billion suns that are threatening to consume anything, even light, within a region five times the size of our... 阅读全文>>

日期：2011-12-05 Face recognition is an important social skill, but not all of us are equally good at it, says Beijing Normal University cognitive psychologist Jia Liu. But what accounts for the difference? A new study by Liu and colleagues Ruosi Wang, Jingguang Li,... 阅读全文>>

日期：2011-12-05 A red dye derived from lichens（地衣） that has been used for centuries to color fabrics and food appears to reduce the abundance of small toxic protein aggregates in Alzheimer's disease. The dye, a compound called orcein（地衣红） , and a related s... 阅读全文>>

日期：2011-12-05 Scientists in Canada have overcome a key research hurdle to developing regenerative treatments for diabetes and liver disease with a technique to produce medically useful amounts of endoderm（内胚层） cells from human pluripotent（多能的） stem cell... 阅读全文>>

日期：2011-12-05 Swedish women who ate an antioxidant-rich diet had fewer strokes regardless of whether they had a previous history of cardiovascular（心血管的） disease, in a study reported in Stroke: Journal of the American Heart Association. Eating antioxidant-ri... 阅读全文>>