日期：2013-10-20 New research has shown that the stomach naturally produces more stem cells than previously realized, likely for repair of injuries from infections, digestive fluids and the foods we eat. Stem cells can make multiple kinds of specialized cells, and s... 阅读全文>>

日期：2013-10-20 Feeding a growing global population while also slowing or reversing global deforestation may only be possible if agricultural yields rise and/or per capita food consumption declines over the next century, according to historic global food consumptio... 阅读全文>>

日期：2013-10-20 Schizophrenia patients usually suffer from a breakdown of organized thought, often accompanied by delusions（妄想） or hallucinations（幻觉） . For the first time, MIT neuroscientists have observed the neural activity that appears to produce this di... 阅读全文>>

日期：2013-10-19 An international team of scientists has provided proof of a key feature of quantum physics -- Heisenberg's error-disturbance relation -- more than 80 years after it was first suggested. One of the basic concepts in the world of quantum mechanics is... 阅读全文>>

日期：2013-10-19 The combination of heat, chemotherapeutic drugs and an innovative delivery system based on nanotechnology may significantly improve the treatment of ovarian cancer while reducing side effects from toxic drugs, researchers at Oregon State University... 阅读全文>>

日期：2013-10-19 The newly discovered dragon tree species Dracaena kaweesakii from Thailand is characterized by its extensive branching. The new species reaches an impressive 12m in both height and crown diameter, and has beautiful soft sword-shaped leaves with whit... 阅读全文>>

日期：2013-10-19 Almost a year after Hurricane Sandy, parts of New York and New Jersey are still recovering from billions of dollars in flood damage. Tufts University geologist Andrew Kemp sees the possibility of damage from storms smaller than Sandy in the future.... 阅读全文>>

日期：2013-10-19 In a typical yoga class, students watch an instructor to learn how to properly hold a position. But for people who are blind or can't see well, it can be frustrating to participate in these types of exercises. Now, a team of University of Washington... 阅读全文>>

日期：2013-10-19 A fungus that is killing frogs and other amphibians around the world releases a toxic factor that disables the amphibian immune response, Vanderbilt University investigators report Oct. 18 in the journal Science. The findings represent a step forwar... 阅读全文>>

日期：2013-10-18 In a new review of how psychology research has illuminated the causes of war and violence, three political psychologists at the University of Massachusetts Amherst say this understanding can and should be used to promote peace and overturn the belie... 阅读全文>>

日期：2013-10-18 Meteorologists often use information about warm and cold fronts to determine whether a tornado will occur in a particular area. Now, a University of Missouri researcher has found that the temperature of the Pacific Ocean could help scientists predic... 阅读全文>>

日期：2013-10-18 Humans aren't the only species that knows how to carry on polite conversation. Marmoset（狨猴） monkeys, too, will engage one another for up to 30 minutes at a time in vocal turn-taking, according to evidence reported in the Cell Press journal Curre... 阅读全文>>

日期：2013-10-18 Scientists have proposed that the most recently discovered ancient human relatives -- the Denisovans - somehow managed to cross one of the world's most prominent marine barriers in Indonesia, and later interbred with modern humans moving through the... 阅读全文>>

日期：2013-10-18 A good night's rest may literally clear the mind. Using mice, researchers showed for the first time that the space between brain cells may increase during sleep, allowing the brain to flush out（冲掉，排出） toxins that build up during waking hours.... 阅读全文>>

日期：2013-10-17 As sanctuary-kept chimpanzees grow from infant to juvenile, they develop increased susceptibility to human yawn（哈欠） contagion, possibility due to their increasing ability to empathize（移情，神会） , says a study published October 16, 2013, in t... 阅读全文>>

日期：2013-10-17 Astronomers at Queen's University Belfast have shed new light on the rarest and brightest exploding stars ever discovered in the universe. The research is published Oct. 17 in Nature. It proposes that the most luminous（发光的） supernovae -- explod... 阅读全文>>

日期：2013-10-17 Earth's most eminent（杰出的） emissary to Mars has just proven that those rare Martian visitors that sometimes drop in on Earth -- a.k.a. Martian meteorites -- really are from the Red Planet. A key new measurement of Mars' atmosphere by NASA's Curi... 阅读全文>>

日期：2013-10-17 Researchers at NYU Langone Medical Center have discovered a new mechanism by which the deadly Staphylococcus aureus bacteria attack and kill off immune cells. Their findings, published today in the journal Cell Host Microbe, explain a critical survi... 阅读全文>>

日期：2013-10-17 Enhanced growth of Earth's leafy greens during the 20th century has significantly slowed the planet's transition to being red-hot, according to the first study to specify the extent to which plants have prevented climate change since pre-industrial... 阅读全文>>

日期：2013-10-16 Shoppers are more likely to buy a product from a different location when a pleasant sound coming from a particular direction draws attention to the item, according to a new study in the Journal of Consumer Research. Suppose that you are standing in... 阅读全文>>