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时间：2019-04-21 03:30:15　来源：柠檬阅读网本文已影响人

　　2012-03-09 　　封面上是2010年8月日本福岛第一核电厂冷却池中的一根钚铀混氧燃料棒。2011年3月的一场大海啸破坏了核电厂的3个反应器，这促使人们不得不重新审视日本在核能方面的安全性及其防灾准备手段。
　　Cooling pool containing a plutonium-uranium mixedoxide fuel rod at Fukushima Dai-ichi nuclear power station, Japan, in August 2010. A tsunami on 11 March 2011 damaged three of the station’s reactors, prompting reassessment of Japan’s reliance on nuclear power and its approach to disaster preparedness.
　　2012-03-16
　　封面上是高约8微米的锗质结晶体伪色扫描电子显微图像，立于硅柱体上并由有限的缝隙间隔。在这种结构中，不存在晶片弯折和层面破裂的情况，可以使单晶体与不同的材料整合到同一个硅衬底上，这种结构可以被用作许多应用产品的平台，例如多接合点太阳能电池、x线和粒子探测器，或者电力电子设备等。
　　False-colored scanning electron micrograph of~8-micrometer-tall germanium crystals, separated by finite gaps, grown onto silicon pillars. In structures like this one, wafer bowing and layer cracking are absent, allowing single-crystal integration of different materials onto a silicon substrate, which serves as a platform for many applications, such as multiplejunction solar cells, x-ray and particle detectors, or power electronic devices.
　　2012-03-23
　　春日的阳光为我们指明了光线的传递路径。植物中的UVR8蛋白质可以感受到阳光光波中的紫外线-B（UV-B），它可以使植物在生长发育过程中发生改变，包括产生一种保护性的化学防晒剂。UVR8内在的色氨酸环锥体会制造出一种内置照明开关，而不需要单独的色基。了解植物在不同的光照条件下会产生何种变化，对于我们如何更好地适应气候变化非常重要。
　　Spring sun lights up signaling pathways. In plants, the UVR8 protein senses ultraviolet-B(UV-B) wavelengths in sunlight, triggering changes in growth and development, including the production of a protective chemical sunscreen. Pyramids of tryptophan rings intrinsic to UVR8 create a built-in light switch; no separate chromophore is required. Understanding how plant growth varies with changes in sunlight becomes more important as we adapt to climate change.
　　2012-03-30
　　封面上是2只体长约2毫米的水蚤。左下方的水蚤被一种剧毒的酵母寄生虫所感染，造成了它亮白色的外观。宿主与寄生虫之间内在的食物链交互作用决定了传染病的流行程度，同时也将决定水蚤族群在传染病流行期间是否变得更具有抗性或是更容易受感染。
　　Two Daphnia dentifera, each ~2 millimeters long. The organism at bottom left is infected with a virulent yeast parasite, causing her bright white appearance. The food web in which the host-parasite interaction is embedded determines the size of the epidemic, which, in turn, determines whether the Daphnia population becomes more resistant or more susceptible during the epidemic.
　　（陶陶编译）

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