不过，传统冷冻电镜本质上仍是“静态摄影”，它捕捉的是分子在某一瞬间的构象。要真正理解生命，不仅要知道“它长什么样”，更要明白“它是怎么动的”。近年来，科学家又开发出时间分辨冷冻电镜，在生物反应启动后的特定时间点快速冷冻样本，再通过一系列“时间切片”，复现分子变化的全过程。
用 MacBook Pro 外接苹果显示器终于不用再忍受刷新率不同的割裂感了——
Faye Carruthers is joined by Suzy Wrack, Tom Garry and Jamie Spangher to review a dramatic FA Cup fifth round and look ahead to the upcoming Asian Cup and World Cup qualifiers，这一点在新收录的资料中也有详细论述
Artie Beaty, Contributing WriterContributing Writer
。新收录的资料对此有专业解读
This “wrapping a leash around the hole” action that Snoopy can perform is actually a group action of \(\mathbb{Z}\) on the base space (Bobs space): For each integer \(n \in \mathbb{Z}\), Snoopy can wrap the leash around the hole \(n\) times, and \(n-m\) corresponds to Snoopy walking around the hole \(n\) times clockwise and then \(m\) times counterclockwise.
Continue reading...。关于这个话题，新收录的资料提供了深入分析