日期：2014-09-25 Eyeless Mexican cavefish show no metabolic circadian rhythm in either light and dark or constant dark conditions, according to a study published September 24, 2014 in the open-access journal PLOS ONE by Damian Moran from Lund University, Sweden, and... 阅读全文>>

日期：2014-09-25 Astronomers using data from the NASA/ESA Hubble Space Telescope, the Spitzer Space Telescope, and the Kepler Space Telescope have discovered clear skies and steamy water vapour on a planet outside our Solar System. The planet, known as HAT-P-11b, is... 阅读全文>>

日期：2014-09-24 Domestic violence occurs at least as frequently, and likely even more so, between same-sex couples compared to opposite-sex couples, according to a review of literature by Northwestern Medicine scientists. Previous studies, when analyzed together, i... 阅读全文>>

日期：2014-09-24 Biochemists working at the University of California, San Diego, have developed a program that predicts the placement of chemical marks that control the activity of genes based on sequences of DNA. They describe their analysis and report results from... 阅读全文>>

日期：2014-09-24 Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have observed what may be the first-ever signs of windy weather around a T Tauri star, an infant analog of our own Sun. This may help explain why some T Tauri stars have disks... 阅读全文>>

日期：2014-09-24 Scientists have shown how gravitational waves -- invisible ripples in the fabric of space and time that propagate through the universe -- might be seen by looking at the stars. The new model proposes that a star that oscillates at the same frequency... 阅读全文>>

日期：2014-09-24 University of Utah engineers discovered a way to create a special material -- a metal layer on top of a silicon semiconductor -- that could lead to cost-effective, superfast computers that perform lightning-fast calculations but don't overheat. This... 阅读全文>>

日期：2014-09-24 Many native species have vanished from tropical islands because of human impact, but University of Florida scientists have discovered how fossils can be used to restore lost biodiversity. The key lies in organic materials found in fossil bones, whic... 阅读全文>>

日期：2014-09-24 Antarctic fishes that manufacture their own antifreeze proteins to survive in the icy Southern Ocean also suffer an unfortunate side effect, researchers report: The protein-bound ice crystals that accumulate inside their bodies resist melting even w... 阅读全文>>

日期：2014-09-20 Of all of the world's species, humans and chimpanzees are some of the only to engage in coordinated attacks on other members of their same species. Jane Goodall was among the first to introduce the occurrence of lethal inter-community killings and s... 阅读全文>>

日期：2014-09-20 Artificial sweeteners -- promoted as aids to weight loss and diabetes prevention -- could actually hasten the development of glucose intolerance and metabolic disease, and they do so in a surprising way: by changing the composition and function of t... 阅读全文>>

日期：2014-09-20 A sleep-promoting circuit located deep in the primitive brainstem has revealed how we fall into deep sleep. Discovered by researchers at Harvard School of Medicine and the University at Buffalo School of Medicine and Biomedical Sciences, this is onl... 阅读全文>>

日期：2014-09-20 Researchers in Biomedical Informatics at IMIM (Hospital del Mar Medical Research Institute) and at the Universitat Politcnica de Catalunya (UPC) have recently published a study in eLife showing that RNA called non-coding (IncRNA) plays an important... 阅读全文>>

日期：2014-09-20 Washington State University researchers have developed a unique method to use microbes buried in pond sediment to power waste cleanup in rural areas. The first microbe-powered, self-sustaining wastewater treatment system could lead to an inexpensive... 阅读全文>>

日期：2014-09-20 Referrals for genetic counselling and testing for breast cancer risk more than doubled across the UK after actress Angelina Jolie announced in May last year that she tested positive for a BRCA1 gene mutation and underwent a double mastectomy. The ri... 阅读全文>>

日期：2014-09-20 Two solids made of the same elements but with different geometric arrangements of the atoms, or crystal phases, can produce materials with different properties. Coal and diamond offer a spectacular example of this effect. While it is well known that... 阅读全文>>

日期：2014-09-20 For future astronauts, the process of suiting up may go something like this: Instead of climbing into a conventional, bulky, gas-pressurized suit, an astronaut may don a lightweight, stretchy garment, lined with tiny, musclelike coils. She would the... 阅读全文>>

日期：2014-09-20 Massive galaxies in the Universe have stopped making their own stars and are instead snacking on nearby galaxies, according to research by Australian scientists. Astronomers looked at more than 22,000 galaxies and found that while smaller galaxies a... 阅读全文>>

日期：2014-09-20 A University of Utah astronomer and his colleagues discovered that an ultracompact dwarf galaxy harbors a supermassive black hole -- the smallest galaxy known to contain such a massive light-sucking object. The finding suggests huge black holes may... 阅读全文>>

日期：2014-09-16 He's not a dentist, but Christopher Miller is focused on fluoride. Two studies from his Brandeis University lab provide new insights into the mechanisms that allow bacteria to resist fluoride toxicity, information that could eventually help inform n... 阅读全文>>