Years of repeated head impacts raise CTE risk — even if they're not concussions

Years of hits in sports like football and soccer, even without concussions, can trigger neuron loss and inflammation in the brain, a study finds.
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Train multi-step agents for real-world tasks using GRPO.

RULER (Relative Universal LLM-Elicited Rewards) eliminates the need for hand-crafted reward functions by using an LLM-as-judge to automatically score agent trajectories. Simply define your task in the ...