日期：2015-08-20 Having friends who suffer from depression doesn't affect the mental health of others, according to research led by the University of Warwick. The academics found that having friends can help teenagers recover from depression or even avoid becoming d... 阅读全文>>

日期：2015-08-20 From a food science and technology perspective, sugar (sucrose) plays several roles when it comes to the functional properties in food. In the September issue of Comprehensive Reviews in Food Science and Food Safety published by the Institute of Foo... 阅读全文>>

日期：2015-08-20 Students who have used electronic cigarettes by the time they start ninth grade are more likely than others to start smoking traditional cigarettes and other combustible tobacco products within the next year, according to a new study funded by the N... 阅读全文>>

日期：2015-08-20 In a paper titled Hummingbird tongues are elastic micropumps which appears in the August 19 issue of Proceedings of the Royal Society B, Alejandro Rico Guevara and Margaret Rubega from the Department of Ecology and Evolutionary Biology and Tai-Hsi F... 阅读全文>>

日期：2015-08-20 Using a vomiting device of their creation, researchers at North Carolina State University and Wake Forest University are reporting the first direct evidence that vomiting can aerosolize virus particles similar to human norovirus. Epidemiological evi... 阅读全文>>

日期：2015-08-18 Gang slayings move in a systematic pattern over time, spreading from one vulnerable area to the next like a disease, finds a groundbreaking study by Michigan State University criminologists and public health researchers. Their findings, published on... 阅读全文>>

日期：2015-08-18 New research from North Carolina State University and Reed College shows that when fruit flies are attacked by parasites or bacteria they respond by producing offspring with greater genetic variability. This extra genetic variability may give the of... 阅读全文>>

日期：2015-08-18 Glaciers in Central Asia experience substantial losses in glacier mass and area. Along the Tien Shan, Central Asia's largest mountain range, glaciers have lost 27% of their mass and 18% of their area during the last 50 years. An international resear... 阅读全文>>

日期：2015-08-18 Scientists have revealed never-before-seen details of how our brain sends rapid-fire messages between its cells. They mapped the 3-D atomic structure of a two-part protein complex that controls the release of signaling chemicals, called neurotransmi... 阅读全文>>

日期：2015-08-18 Indiana University paleobotanist David Dilcher and colleagues in Europe have identified a 125 million- to 130 million-year-old freshwater plant as one of earliest flowering plants on Earth. The finding, reported Aug. 17 in the Proceedings of the Nat... 阅读全文>>

日期：2015-08-17 Early humans were the dominant cause of the extinction of a variety of species of giant beasts, new research has revealed. Scientists at the universities of Exeter and Cambridge claim their research settles a prolonged debate over whether mankind or... 阅读全文>>

日期：2015-08-17 Approximately 31 percent of food produced in the U.S., or 133 billion pounds of food worth $162 billion, was wasted in 2011 according to the United States Department of Agriculture (USDA). Now, University of Missouri researchers have found that the... 阅读全文>>

日期：2015-08-17 A study from the US National Institutes of Health presents some of the most precise human data yet on whether cutting carbs or fat has the most benefits for losing body fat. In a paper published August 13 in Cell Metabolism, the researchers show how... 阅读全文>>

日期：2015-08-17 A team of researchers has discovered a Jupiter-like planet within a young system that could provide a new understanding of how planets formed around our sun. The new planet, called 51 Eridani b, is the first exoplanet discovered by the Gemini Planet... 阅读全文>>

日期：2015-08-13 A computer science team at The University of Texas at Austin has found that robots evolve more quickly and efficiently after a virtual mass extinction modeled after real-life disasters such as the one that killed off the dinosaurs. Beyond its implic... 阅读全文>>

日期：2015-08-13 Among older men with low testosterone levels, testosterone administration for 3 years compared with placebo did not result in a significant difference in the rates of change in atherosclerosis (thickening and hardening of artery walls), nor was it a... 阅读全文>>

日期：2015-08-13 The wild boar population in Europe has been constantly growing since the 1980s. This is more and more becoming a problem for agriculture when animals raid the fields, looking for feed. It is not so easy to determine the number of wild boars in Europ... 阅读全文>>

日期：2015-08-13 From Austrian monks to American craft brewers, beer geeks are everywhere. But making a good beer not only depends on the best ingredients, but also the best yeast. The beer world is divided into ales and lagers. The original and highly versatile yea... 阅读全文>>

日期：2015-08-13 Saturated fats are not associated with an increased risk of death, heart disease, stroke, or type 2 diabetes, finds a study published in The BMJ this week. However, the findings show that trans fats are associated with greater risk of death and coro... 阅读全文>>

日期：2015-08-12 The world's population will increase from today's 7.3 billion people to 9.7 billion in 2050 and 11.2 billion at century's end, John R. Wilmoth, the director of the United Nations (UN) Population Division, told a session focused on demographic foreca... 阅读全文>>