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如何在低重力环境中保持垂直
2023-12-06Keeping upright in a low-gravity environment is not easy, and NASA documents abound with examples of astronauts falling on the lunar surface. Now, a n...
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儿童期肥胖与哮喘 孰先孰后?
2023-12-06For years, doctors have known that there is a link between childhood obesity and asthma, but have found it difficult to determine which condition tend...
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新发现的超星系团是银河系的故乡
2023-12-06Astronomers using the National Science Foundation's Green Bank Telescope (GBT) -- among other telescopes -- have determined that our own Milky Way...
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科学家成功测序大肠杆菌菌株的完整基因组
2023-12-06Researchers at the University of California, San Diego have produced the first complete genome sequencing of a strain of E. coli that is a common caus...
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基于自动手表工作原理的无电池心脏起搏器
2023-12-06A new batteryless cardiac pacemaker based on an automatic wristwatch and powered by heart motion was presented at ESC Congress 2014 today by Adrian Zu...
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神经元中的记忆
2023-12-06When we learn, we associate a sensory experience either with other stimuli or with a certain type of behaviour. The neurons in the cerebral cortex tha...
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单激光束能使分子停止翻转运动
2023-12-06In the quantum world, making the simple atom behave is one thing, but making the more complex molecule behave is another story. Now Northwestern Unive...
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亚洲驼螽在美国家庭中很常见
2023-12-06With their long, spiky legs and their propensity(倾向,习性) for eating anything, including each other, camel crickets are the stuff of nightmares. And now...
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办公室摆放植物使员工更有创造性
2023-12-06'Green' offices with plants make staff happier and more productive than 'lean' designs stripped of greenery, new research shows. In th...
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珊瑚虫是改变生存环境的小工程师
2023-12-06Conventional wisdom has long held that corals -- whose calcium-carbonate skeletons form the foundation of coral reefs -- are passive organisms that re...