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蓝色光的生物效应
2023-12-06Blue light can both set the mood and set in motion important biological responses. Researchers at the University of Pennsylvania's School of Medic...
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大质量黑洞能限制新星的形成
2023-12-06Massive black holes spewing out radio-frequency-emitting particles at near-light speed can block formation of new stars in aging galaxies, a study has...
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太阳光对人体的三重伤害
2023-12-06The most obvious effects of too much sun exposure are cosmetic, like wrinkled and rough skin. Some damage, however, goes deeper -- ultraviolet light c...
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利用同步辐射加强X射线断层摄影术
2023-12-06X-ray phase tomography is an imaging technique that uses penetrating X-rays to create volumetric views through "slices" or sections of soft ...
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美国人最害怕的事情
2023-12-06Chapman University has initiated the first comprehensive nationwide study on what strikes fear in Americans in the first of what is a planned annual s...
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林木组成改变与气候变化无关
2023-12-06Change in disturbance regimes -- rather than a change in climate -- is largely responsible for altering the composition of Eastern forests, according ...
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地球磁场处于缓慢变化之中
2023-12-06Imagine the world waking up one morning to discover that all compasses pointed south instead of north. It's not as bizarre as it sounds. Earth'...
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利用3D技术检查悬崖带景观的形成
2023-12-06A blend of photos and technology takes a new twist on studying cliff landscapes and how they were formed. Dylan Ward, a University of Cincinnati assis...
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世界上最薄的发电机
2023-12-06Researchers from Columbia Engineering and the Georgia Institute of Technology report today that they have made the first experimental observation of p...
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埃博拉病毒21天的隔离期受到质疑
2023-12-06As medical personnel and public health officials are responding to the first reported cases of Ebola Virus in the United States, many of the safety an...