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两种广泛使用的烟碱对蜂群有害
2023-12-06Two widely used neonicotinoids(新烟碱) -- a class of insecticide -- appear to significantly harm honey bee colonies over the winter, particularly during ...
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探索单元子的磁场
2023-12-06Magnetic devices like hard drives, magnetic random access memories (MRAMs), molecular magnets, and quantum computers depend on the manipulation of mag...
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利用荧光蛋白追踪血液里的癌细胞
2023-12-06After cancer spreads, finding and destroying malignant(恶性的) cells that circulate in the body is usually critical to patient survival. Now, researchers...
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植物激素对花的形成有双重作用
2023-12-06Flowers aren't just pretty to look at, they are how plants reproduce. In agricultural plants, the timing and regulation of flower formation has ec...
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杀不死你的东西可能会让你活得更久
2023-12-06What is the secret to aging more slowly and living longer? Not antioxidants, apparently. Many people believe that free radicals, the sometimes-toxic m...
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北极熊对高脂肪食物的适应力值得研究
2023-12-06A comparison of the genomes of polar bears and brown bears reveals that the polar bear is a much younger species than previously believed, having dive...
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研究揭示恐龙前爪的新作用
2023-12-06Theropod(兽脚亚目的) dinosaurs, a group which includes such famous species as Tyrannosaurus rex and Velociraptor, are often regarded as carnivorous and pre...
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统计测试有利于复杂疾病的基因研究
2023-12-06The power of genome-wide association studies (GWAS) to detect genetic influences on human disease can be substantially increased using a statistical t...
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同步加速成像展现恐龙骨骼的愈合过程
2023-12-06Scientists have used state-of-the-art imaging techniques to examine the cracks, fractures and breaks in the bones of a 150 million-year-old predatory ...
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加拿大亚伯达省古代曾遭大规模陨星撞击
2023-12-06The discovery of an ancient ring-like structure in southern Alberta suggests the area was struck by a meteorite(陨星) large enough to leave an eight-kil...