日期：2014-03-05 In the mid-1970s, the first available satellite images of Antarctica during the polar winter revealed a huge ice-free region within the ice pack of the Weddell Sea. This ice-free region, or polynya（冰间湖） , stayed open for three full winters befo... 阅读全文>>

日期：2014-03-05 Usually, microelectronic devices are made of silicon or similar semiconductors. Recently, the electronic properties of metal oxides have become quite interesting. These materials are more complex, yet offer a broader range of possibilities to tune t... 阅读全文>>

日期：2014-03-05 Politicians know that turning on the tears can be a vote winner, but how does the political manipulation of our emotions actually work? Research in Political Psychology explores how emotions such as anxiety, even if their cause has nothing to do wit... 阅读全文>>

日期：2014-03-05 It's long been a popular stereotype: Men are hugely competitive, meaning cooperative effort is the exception rather than the norm, while women have a tendency to nurture relationships with others, making them much more likely to cooperate with one a... 阅读全文>>

日期：2014-03-05 World-class orchestras（管弦乐队） can be accurately identified by silent video footage of performances, but not through sound recordings, a UCL study has found. Both professional musicians and musical novices（新手） are better at identifying top-r... 阅读全文>>

日期：2014-03-05 Black bears in Yosemite National Park and elsewhere are notorious for seeking out human food, even breaking into cars and cabins for it. A new study reveals just how much human food has contributed to the diets of Yosemite bears over the past centur... 阅读全文>>

日期：2014-03-01 A team of Australian and American astronomers have been studying nearby galaxy M83 and have found a new superpowered small black hole, named MQ1, the first object of its kind to be studied in this much detail. Astronomers have found a few compact ob... 阅读全文>>

日期：2014-02-26 A new study published in Proceedings of the National Academy of Sciences has shown for the first time that several types of aquatic algae（海藻） can detect orange, green and blue light. Land plants have receptors to detect light on the red and far... 阅读全文>>

日期：2014-02-26 A multi-institutional team reports that it can increase sugarcane's geographic range, boost its photosynthetic rate by 30 percent and turn it into an oil-producing crop for biodiesel（生物柴油） production. These are only the first steps in a bigger... 阅读全文>>

日期：2014-02-26 New research from Plymouth State University and the University of New Hampshire indicates that collecting and bleeding horseshoe crabs for biomedical purposes causes short-term changes in their behavior and physiology that could exacerbate（加剧，恶... 阅读全文>>

日期：2014-02-26 The findings of a recent study indicate that routine testing with both fluorescent in situ hybridization (FISH) and immunohistochemistry (IHC) may enhance the detection of ALK-positive non-small cell lung cancer (NSCLC). Accurate determination of AL... 阅读全文>>

日期：2014-02-26 Scientists are revealing how microbes living on floating pieces of plastic marine debris affect the ocean ecosystem, and the potential harm they pose to invertebrates（无脊椎动物） , humans and other animals. New research being presented here today... 阅读全文>>

日期：2014-02-25 Everyday our cells take in nutrients from food and convert them into the building blocks that make life possible. However, it has been challenging to pinpoint exactly how a single nutrient or vitamin changes gene expression and physiology. Scientist... 阅读全文>>

日期：2014-02-25 A new study reconstructing the evolutionary tree of flu viruses challenges conventional wisdom and solves some of the mysteries surrounding flu outbreaks of historical significance. The study, published in the journal Nature, provides the most compr... 阅读全文>>

日期：2014-02-25 Lemurs（狐猴） , the most endangered mammal group on Earth, represent more than 20 per cent of the world's primates. Native only to Madagascar, more than 90 percent of the species are threatened with extinction. A Western University primatologist ha... 阅读全文>>

日期：2014-02-25 The brains of jazz musicians engrossed in spontaneous, improvisational（即兴的） musical conversation showed robust activation of brain areas traditionally associated with spoken language and syntax, which are used to interpret the structure of phra... 阅读全文>>

日期：2014-02-25 Generating electricity is not the only way to turn sunlight into energy we can use on demand（即期） . The sun can also drive reactions to create chemical fuels, such as hydrogen, that can in turn power cars, trucks and trains. The trouble with sola... 阅读全文>>

日期：2014-02-24 Researchers recently discovered that a common space weather phenomenon on the outskirts of Earth's magnetic bubble, the magnetosphere（磁气圈） , has much larger repercussions（反响，影响） for Venus. The giant explosions, called hot flow anomalies... 阅读全文>>

日期：2014-02-24 Using a telescope installed at the driest place on earth -- Ridge A in Antarctica -- a UNSW-led team of researchers has identified a giant gas cloud which appears to be in an early stage of formation. Giant clouds of molecular gas -- the most massiv... 阅读全文>>

日期：2014-02-24 Here are two facts that make the lowly barnacle（藤壶） important: They are popular models for ecology research, and they are very sensitive to temperature. Given that, the authors of a new study about a bellwether（前导） community of two barnacle... 阅读全文>>