Sample-efficient active learning for materials informatics using integrated posterior variance

· · 来源:de资讯

Border guards shot dead four people and injured the remaining six aboard the Florida-registered speedboat. Cuba accused the 10 people on the boat of planning "an infiltration with terrorist aims" and said they opened fire first.

Жители Санкт-Петербурга устроили «крысогон»17:52

George Timms。业内人士推荐旺商聊官方下载作为进阶阅读

There is a plan to prevent such a strike—the Space Surveillance Network, a bevy of sensors that the military uses to track space debris. NASA monitors what’s unofficially known as the “pizza box,” a sort of no-fly zone around the ISS. When pieces of debris are predicted to enter the box—if there’s at least a 1 in 100,000 chance of collision—mission controllers order avoidance maneuvers, firing thrusters that move the ISS and dodge the trash. The technique has been used dozens of times since the first ISS module launched in 1998. But the system only tracks about 45,000 larger pieces, and all sensors have noise. Plus, risk thresholds can miss stuff, sometimes badly. In 2025, Chinese astronauts were briefly stranded at their station after debris hit their return vehicle.

It had previously been thought that vaccinating children against chickenpox would cause a problematic rise in the linked condition shingles, but a recent long-term study from the US disproved that theory.

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