With travel warnings and revoked visas, the two superpowers locked in a bruising trade war may make students and tourists their bargaining chips. By Vivian Wang Reporting from Beijing China has ...

The following answers to this artful question each win a random book. Art is something we do, a verb. Art is an expression of our thoughts, emotions, intuitions, and desires, but it is even more ...

为探究 AGO-siRNA 复合物如何克服结构限制实现高效靶标切割，研究人员开展了人类 AGO-siRNA 复合物与不同长度靶 RNA 结合的冷冻电镜研究。结果揭示了其靶标识别和切割的逐步机制，为理解 AGO 和 PIWI 蛋白的作用方式提供了新视角。 在动物体内，AGO 进化枝的 ...