日期：2013-07-26 The taller a postmenopausal woman is, the greater her risk for developing cancer, according to a study published in Cancer Epidemiology, Biomarkers Prevention, a journal of the American Association for Cancer Research. Height was linked to cancers o... 阅读全文>>

日期：2013-07-26 The phenomenon of false memory has been well-documented: In many court cases, defendants have been found guilty based on testimony from witnesses and victims who were sure of their recollections, but DNA evidence later overturned the conviction. In... 阅读全文>>

日期：2013-07-26 Scientists have discovered a massive particle accelerator in the heart of one of the harshest regions of near-Earth space, a region of super-energetic, charged particles surrounding the globe called the Van Allen radiation belts. Scientists knew tha... 阅读全文>>

日期：2013-07-25 Despite major advances in the pharmaceutical treatment of disease, many children reject medicines due to an aversion（厌恶） to bitter taste. As such, bitterness presents a key obstacle to the acceptance and effectiveness of beneficial drugs by chil... 阅读全文>>

日期：2013-07-25 Researchers at Brown University have shown that some Martian valleys appear to have been caused by runoff from orographic precipitation（地形雨） -- moisture carried part of the way up a mountain and deposited on the slopes. Valley networks branchin... 阅读全文>>

日期：2013-07-25 A new method for producing electricity from carbon dioxide could be the start of a classic trash-to-treasure story for the troublesome greenhouse gas, scientists are reporting. Described in an article in ACS' newly launched journal Environmental Sci... 阅读全文>>

日期：2013-07-25 Glacier retreat areas provide an excellent window into the evolution of microbial communities, an ideal opportunity for scientists to study how quickly soil biological functions become established and how ecosystems begin to form. Soils are not stat... 阅读全文>>

日期：2013-07-25 Scientists at Chicago's Field Museum and international collaborators have described a new species of Hero Shrew -- the mammal with the most bizarre lower spine（脊椎） on Earth. The interlocking vertebrae of the Hero Shrew render the spine four to f... 阅读全文>>

日期：2013-07-25 A new study by the Wildlife Conservation Society and Snow Leopard Trust reveals a disturbing link between the cashmere（羊绒） trade and the decay of ecosystems that support some of the planet's most spectacular yet little-known large mammals. The s... 阅读全文>>

日期：2013-07-25 Artists and craftsmen（工匠） more than 2,000 years ago developed thin-film coating technology unrivaled（无比的） even by today's standards for producing DVDs, solar cells, electronic devices and other products. Understanding these sophisticated me... 阅读全文>>

日期：2013-07-22 One third of people diagnosed with throat cancer are infected with a form of the HPV virus, a study suggests. 一项调查显示，1/3患咽喉癌的人同时感染了一种人乳头状瘤病毒。 There are more than 100 types of HPV HPV (human papillomavirus) is the major ca... 阅读全文>>

日期：2013-07-22 The European Space Agency/NASA Solar and Heliospheric Observatory, or SOHO, captured this image of a gigantic coronal hole hovering over the sun's north pole on July 18, 2013, at 9:06 a.m. EDT. Coronal holes are dark, low density regions of the sun'... 阅读全文>>

日期：2013-07-22 If you could hit the reset button on evolution and start over, would essentially the same species appear? Yes, according to a study of Caribbean lizards by researchers at the University of California, Davis, Harvard University and the University of... 阅读全文>>

日期：2013-07-22 For nearly a century, the only bears known to reside in Missouri were on the state flag or in captivity. Unregulated hunting and habitat loss had wiped out most black bears in Missouri, Arkansas and Oklahoma by the 1920s. Now, thanks to a reintroduc... 阅读全文>>

日期：2013-07-22 Almost 100 million euros has been spent so far on conservation efforts for the last 250 remaining Iberian lynxes in the wild. But the charismatic（超凡魅力的） species is likely to go extinct within 50 years because the current management plans do n... 阅读全文>>

日期：2013-07-22 Global warming five million years ago may have caused parts of Antarctica's large ice sheets to melt and sea levels to rise by approximately 20 metres, scientists report today in the journal Nature Geoscience. The researchers, from Imperial College... 阅读全文>>

日期：2013-07-19 You are not just yourself. You are also the thousands of microbes that you carry. In fact, they represent an invisible majority that may be more you than you realize. These microscopic fellow travelers are collectively called the microbiome. Realiza... 阅读全文>>

日期：2013-07-19 Astronomers using NASA's Hubble Space Telescope have determined the orbital motion of two distinct populations of stars in an ancient globular star cluster, offering proof they formed at different times and providing a rare look back into the Milky... 阅读全文>>

日期：2013-07-19 Evaporation is so common that everybody thinks it's a well understood phenomenon. Appearances can be, however, deceptive（迷惑的） . Recently, a new, earlier not predicted mechanism of evaporation was discovered. Experiments and simulations performe... 阅读全文>>

日期：2013-07-19 The results of a major international effort to assess the status of dozens of European fish stocks find that many of those stocks in the northeast Atlantic are being fished sustainably today and that, given time, those populations should continue to... 阅读全文>>