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影响美国北方森林的五个人为因素
2023-12-06In the most densely forested and most densely populated quadrant(象限) of the United States, forests reflect two centuries of human needs, values and pr...
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帕金森症是否为自体免疫疾病?
2023-12-06The cause of neuronal death in Parkinson's disease is still unknown, but a new study proposes that neurons may be mistaken for foreign invaders an...
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神经网络是重置生物钟的关键
2023-12-06Fruit flies are pretty predictable when it comes to scheduling their days, with peaks of activity at dawn and dusk and rest times in between. Now, res...
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濒危物种急需备选辨认方法
2023-12-06In a time of global climate change and rapidly disappearing habitat critical to the survival of countless endangered species, there is a heightened se...
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美国西部森林火灾逐渐严重与频繁
2023-12-06Wildfires across the western United States have been getting bigger and more frequent over the last 30 years -- a trend that could continue as climate...
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深海温度与冰雪容积共同影响冰河时期
2023-12-06An international team of scientists has discovered new relationships between deep-sea temperature and ice-volume changes to provide crucial new inform...
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内应力决定细胞的形状
2023-12-06From far away, the top of a leaf looks like one seamless surface; however, up close, that smooth exterior is actually made up of a patchwork(拼缀物) of c...
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树荫咖啡的种植面积逐渐降低
2023-12-06The proportion of land used to cultivate shade grown coffee, relative to the total land area of coffee cultivation, has fallen by nearly 20 percent gl...
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脊椎动物颚骨的进化史
2023-12-06The skull of a newly discovered 325-million-year-old shark-like species suggests that early cartilaginous(软骨的) and bony fishes have more to tell us ab...
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某蛋白质对付沙门氏菌有奇效
2023-12-06A research team at the Biozentrum of the University of Basel has discovered an protein family that plays a central role in the fight against the bacte...