日期:2016-05-18 Most living organisms adapt their behavior to the rhythm of day and night. Plants are no exception: flowers open in the morning, some tree leaves close during the night. Researchers have been studying the day and night cycle in plants for a long tim... 阅读全文>>

日期:2016-05-18 Despite the rigors of scientific inquiry and the methodical approaches of the worlds most talented researchers, sometimes science has a surprise in store. Such was the case when a group of researchers from the U.S. Department of Energys (DOE) Argonn... 阅读全文>>

日期:2016-05-18 Conventional wisdom says removing beach debris helps sea turtles nest; now, as sea-turtle nesting season gets underway, a new University of Florida study proves it. Clearing the beach of flotsam and jetsam increased the number of nests by as much as... 阅读全文>>

日期:2016-05-18 College students who receive special accommodations because of a learning disability say they have less difficulty completing assignments and more contact with faculty outside of class than peers who dont receive extra help. A new study by the Unive... 阅读全文>>

日期:2016-05-18 Designing materials that better respond to dynamic loading can help vehicles minimize vibration, better protect military convoys or potentially make buildings safer during an earthquake. Granular materials -- assemblages of particles that range broa... 阅读全文>>

日期:2016-05-18 Higher intakes of boiled, baked, or mashed potatoes, and French fries is associated with an increased risk of developing high blood pressure (hypertension) in adult women and men, according to a study published by The BMJ today. The US-based researc... 阅读全文>>

日期:2016-05-18 The ocean of Jupiters moon Europa could have the necessary balance of chemical energy for life, even if the moon lacks volcanic hydrothermal activity, finds a new study. Europa is strongly believed to hide a deep ocean of salty liquid water beneath... 阅读全文>>

日期:2016-05-17 According to conventional wisdom the line between genius and madness is a very thin one. Now a study suggests the line may be even more blurred than previously thought. 传统观点认为天才和疯子只有一线之隔。如今有研究显示他们之间的界限比以前更模糊了。... 阅读全文>>

日期:2016-05-12 Climate change is melting glaciers, reducing sea-ice cover and increasing wildlife activity - with some of the most dramatic impacts occurring in the northern high latitudes. New research by University of Montana affiliate scientist Adam Young and U... 阅读全文>>

日期:2016-05-12 In what is considered one of the oldest and most important archaeological digs in North America, scientists have uncovered what they believe are the bones of a 13,000- to 14,000-year-old ancient, extinct species of bison at the Old Vero Man Site in... 阅读全文>>

日期:2016-05-12 A researcher at the University of Colorado Denver has found that Neanderthals in Europe showed signs of nutritional stress during periods of extreme cold, suggesting climate change may have contributed to their demise around 40,000 years ago. Jamie... 阅读全文>>

日期:2016-05-12 Chemists have taken another major step in the quest to use carbon-hydrogen bonds to create new molecules, a strategy that aims to revolutionize the field of organic synthesis. The journal Nature is publishing the work by chemists at Emory University... 阅读全文>>

日期:2016-05-12 The Zika virus strain circulating in Brazil was shown to be able to infect and cause damage to mice fetuses. In stem cell cultures of the human nervous system, the virus infection resulted in the cell death. Compared to the virus circulating in Afri... 阅读全文>>

日期:2016-05-11 A new study from Tel Aviv University, Cornell University and the Albert Einstein College of Medicine reveals genetic proof of the Jewish roots of the Bene Israel community in the western part of India. They have always considered themselves Jewish.... 阅读全文>>

日期:2016-05-11 Researchers at Tufts University have stabilized blood samples for long periods of time without refrigeration and at high temperatures by encapsulating them in air-dried silk protein. The technique, which is published online this week in the Proceedi... 阅读全文>>

日期:2016-05-11 In 1940, the Tacoma Narrows Bridge collapsed in dramatic fashion, twisting in the wind before it snapped and plunged into the water below. As wind blew across the span, the flow induced oscillating sideways forces that helped bring down the bridge -... 阅读全文>>

日期:2016-05-11 Scientists from Princeton University and NASA have confirmed that 1,284 objects observed outside Earths solar system by NASAs Kepler spacecraft are indeed planets. Reported in The Astrophysical Journal on May 10, it is the largest single announcemen... 阅读全文>>

日期:2016-05-06 The leopard (Panthera pardus), one of the worlds most iconic big cats, has lost as much as 75 percent of its historic range, according to a paper published today in the scientific journal PeerJ. Conducted by partners including the National Geographi... 阅读全文>>

日期:2016-05-06 Rechargeable lithium air batteries are a next-generation technology: Theoretically they might be much lighter and offer better performance than current lithium ion batteries. However, currently they run out of steam after only a few charging cycles.... 阅读全文>>

日期:2016-05-06 The sex of many reptile species is set by temperature. New research reported in the journal GENETICS identifies the first gene associated with temperature-dependent sex determination in any reptile. Variation at this gene in snapping turtles contrib... 阅读全文>>

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