日期：2013-07-19 If you squeeze a normal object in all directions, it shrinks in all directions. But a few strange materials will actually grow in one dimension when compressed. A team of chemists has now discovered a structure that takes this property to a new leve... 阅读全文>>

日期：2013-07-19 We humans can remember events in our lives that happened years ago, with those memories often surfacing unexpectedly in response to sensory triggers: perhaps a unique flavor or scent. Now, researchers reporting in Current Biology, a Cell Press publi... 阅读全文>>

日期：2013-07-18 A team led by William Fenical at Scripps Institution of Oceanography at UC San Diego has discovered a new chemical compound from an ocean microbe in a preliminary research finding that could one day set the stage for new treatments for anthrax（炭疽... 阅读全文>>

日期：2013-07-18 Polarisability determines the force with which an inhomogeneous（不同类的） external electric field acts on the ions of an ion beam. However, it can be quite tricky to obtain accurate values for this force. Now, two German theoretical chemists, Volk... 阅读全文>>

日期：2013-07-18 The information carried by the electrical activity of neurons is a mixture of stored memories, environmental circumstances, and current state of mind, scientists have found in a study of laboratory rats. The findings, which appear in the journal PLo... 阅读全文>>

日期：2013-07-18 A five-year study by the Wildlife Conservation Society gives new hope to some of the world's most endangered primates by establishing a roadmap to protect all 27 species in Tanzania -- the most primate-diverse country in mainland Africa. The study c... 阅读全文>>

日期：2013-07-18 Archaeologists tunneling beneath the main temple of the ancient Maya city of El Per-Waka' in northern Guatemala have discovered an intricately（杂乱地） carved stone monument with hieroglyphic（象形文字） text detailing the exploits of a little-know... 阅读全文>>

日期：2013-07-18 A remarkable new species of horned dinosaur has been unearthed in Grand Staircase-Escalante National Monument, southern Utah. The huge plant-eater inhabited Laramidia, a landmass formed when a shallow sea flooded the central region of North America,... 阅读全文>>

日期：2013-07-17 Newly published findings by medical researchers at the University of Alberta provide more evidence that music decreases children's perceived sense of pain. Faculty of Medicine Dentistry researcher Lisa Hartling led the research team that involved he... 阅读全文>>

日期：2013-07-17 Putting a new spin on the concept of stress eating, research presented at the 2013 Institute of Food Technologists (IFT) Annual Meeting Expo found that people who eat during times of stress typically seek the foods they eat out of habit -- regardles... 阅读全文>>

日期：2013-07-17 The best way to reduce carbon emissions and combat climate change is through the use of market forces, according to a new study. Researchers who monitored the effectiveness of the European Climate Exchange (ECX) -- the world's biggest carbon trading... 阅读全文>>

日期：2013-07-17 Improving crop yields using sustainable methods could cut greenhouse gas emissions by as much as 12% per calorie produced according to a new study published in the journal Environmental Research Letters. At the same time, these changes could provide... 阅读全文>>

日期：2013-07-17 A new study estimates that global sea levels will rise about 2.3 meters, or more than seven feet, over the next several thousand years for every degree (Celsius) the planet warms. This international study is one of the first to combine analyses of f... 阅读全文>>

日期：2013-07-17 Dogs can learn, retain and replay actions taught by humans after a short delay. According to a new study by Claudia Fugazza and Adm Miklsi, from Etvs Lornd University in Hungary, this deferred imitation provides the first evidence of dogs' cognitive... 阅读全文>>

日期：2013-07-17 NASA's Hubble Space Telescope has discovered a new moon orbiting the distant blue-green planet Neptune（海王星） , the 14th known to be circling the giant planet. The moon, designated S/2004 N 1, is estimated to be no more than 12 miles across, maki... 阅读全文>>

日期：2013-07-14 Researchers at the Center for Infection and Immunity at Columbia University's Mailman School of Public Health and colleagues have identified a new virus associated with the death of a short-beaked dolphin found stranded on a beach in San Diego. It i... 阅读全文>>

日期：2013-07-13 A solar tsunami observed by NASA's Solar Dynamics Observatory (SDO) and the Japanese Hinode spacecraft has been used to provide the first accurate estimates of the Sun's magnetic field. Solar tsunamis are produced by enormous explosions in the Sun's... 阅读全文>>

日期：2013-07-13 By comparing the human genome to the genomes of 34 other mammals, Australian scientists have described an unexpectedly high proportion of functional elements conserved through evolution. Less than 1.5% of the human genome is devoted to conventional... 阅读全文>>

日期：2013-07-13 Sad music might actually evoke positive emotions reveals a new study by Japanese researchers published in the open-access journal Frontiers in Psychology. The findings help to explain why people enjoy listening to sad music, say Ai Kawakami and coll... 阅读全文>>

日期：2013-07-13 More than two million deaths occur worldwide each year as a direct result of human-caused outdoor air pollution, a new study has found. In addition, while it has been suggested that a changing climate can exacerbate（加剧，恶化） the effects of air... 阅读全文>>