日期:2010-08-04 Scientists hoping to understand how cells work may get a boost from a new technique to tag and image proteins within living mammalian(哺乳类) cells. The new technique, developed by a research team led by University of Illinois at Chicago assistant... 阅读全文>> 日期:2010-08-04 Sky viewers might get to enjoy some spectacular Northern Lights, or aurorae(曙光) , tomorrow. After a long slumber(睡眠,静止状态) , the Sun is waking up. Early Sunday morning, the Sun's surface erupted and blasted tons of plasma(等离子体,血浆... 阅读全文>> 日期:2010-08-04 Pass the chips and hand over the remote. In a study involving the first-ever daily energy expenditure(能量消耗) measurements in apes, a researcher from Washington University in St. Louis and his team have determined that orangutans(猩猩) living... 阅读全文>> 日期:2010-08-04 Call it the anti- sunscreen(遮光剂) . That's more or less the description of what many solar energy researchers would like to find -- light-catching substances that could be added to photovoltaic(光电的) materials in order to convert more of the... 阅读全文>> 日期:2010-08-04 Call it the anti- sunscreen(遮光剂) . That's more or less the description of what many solar energy researchers would like to find -- light-catching substances that could be added to photovoltaic(光电的) materials in order to convert more of the... 阅读全文>> 日期:2010-08-03 Bad news, Miami. Of all Florida's major population centers, the city is the most vulnerable to strong hurricane winds, according to Florida State University researchers who developed a new tool to estimate the frequency of extreme hurricane winds at... 阅读全文>> 日期:2010-08-03 Researchers seeking to understand the impact of osteoporosis(骨质疏松症) and fractures on various aspects of health have found that women who had previous fractures experienced a significant reduction in health-related quality of life similar to o... 阅读全文>> 日期:2010-08-03 In the quest for efficient, cost-effective and commercially viable(可行的) fuel cells, scientists at Cornell University's Energy Materials Center have discovered a catalyst(催化剂) and catalyst-support combination that could make fuel cells more... 阅读全文>> 日期:2010-08-03 The summer of 2010 has been agonizingly(使人烦恼地,苦闷地 ) hot in much of the continental U.S., and the record-setting temperatures have refocused attention on global warming. Scientists have been looking at ways the Earth might benefit from nat... 阅读全文>> 日期:2010-08-03 It takes a village to keep a pregnant woman at her healthiest, a new University of Michigan study shows. The study compared African American and European American women and women of lower and higher socioeconomic(社会经济学的) status to see what e... 阅读全文>> 日期:2010-08-02 A new theory developed at Purdue University may solve the mystery of why the New Madrid fault, which lies in the middle of the continent and not along a tectonic plate(地质构造板块) boundary, produces large earthquakes such as the ones that shook... 阅读全文>> 日期:2010-08-02 Pediatric(小儿科的) researchers have discovered a new biological pathway in which small segments of RNA, called microRNA, help protect red blood cells from injury caused by chemicals called free radicals(自由基) . The microRNA seems to have only... 阅读全文>> 日期:2010-08-02 A broad range of scientific research has demonstrated that an adequate intake(摄取) of calcium plays an important role in building and maintaining optimum(最适宜的) bone mass, and a recent meta-analysis published online in the British Medical Jo... 阅读全文>> 日期:2010-08-02 Researchers at UT Southwestern Medical Center have uncovered a key step in the creation of new red blood cells in an animal study. They found that a tiny fragment of ribonucleic acid ( RNA核糖核酸 ), a chemical cousin of DNA, prompts stem cells to m... 阅读全文>> 日期:2010-08-02 Researchers at the University of California, San Diego School of Medicine have identified a new way to regulate the uncontrolled growth of blood vessels(血管) , a major problem in a broad range of diseases and conditions. The findings are publishe... 阅读全文>> 日期:2010-07-30 Scientists at the Buck Institute for Age Research have discovered that a particular family of enzymes(酶) are involved in the breakdown(分解,故障) of proteins that modify the production of toxic fragments that lead to the pathology(病理学) of... 阅读全文>> 日期:2010-07-30 In Greek mythology(神话) , the gods punished Sisyphus by condemning him to roll a rock up a steep hill for eternity(来世,不朽) . But he was probably better off than if they'd condemned him to sit and stare into space until the end of time, conc... 阅读全文>> 日期:2010-07-30 Chemicals present in two rivers in southern Alberta are likely the cause of the feminization(女性化,雌性化) of fish say researchers at the University of Calgary who have published results of their study in the journal Environmental Toxicology and... 阅读全文>> 日期:2010-07-30 In laboratory tests, right- and left-handers associate positive ideas like honesty and intelligence with their dominant(显性的,支配的) side of space and negative ideas with their non-dominant side, says Daniel Casasanto of the Max Planck Institut... 阅读全文>> 日期:2010-07-30 In an unprecedented effort that will be published online on the 28th of July by the international journal Nature, a team of scientists mapped and analyzed global biodiversity patterns for over 11,000 marine species ranging from tiny zooplankton(浮... 阅读全文>> |
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