The oldest Asian black bear in US human care cherished her last day at Colorado’s Cheyenne Mountain Zoo before being euthanized at age 30, zookeepers said.

Having ADHD can pose challenges at work. Common symptoms include trouble concentrating and sitting still. But ADHD can also be a source of creativity and unique contributions.

This paper explores the application of reinforcement learning in multiple unmanned aerial vehicle (multi-UAV) path planning. The traditional proximal policy optimization (PPO) algorithm faces issues ...