A new study shows that exposure to two specific 'forever chemicals' may accelerate biological aging, especially in middle-aged men. Researchers revealed a link between faster epigenetic aging, and two of these alternatives, PFNA and PFOSA, a precursor of PFOA.

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千亿、百亿和十亿研发投入规模区间企业合计379 家,合计研发投入约1.94 万亿元,企业数量占比不到一成,却贡献了整体研发投入的七成以上(71.52%)。这一占比较上年(70.68%)继续增加。

President Donald Trump has ordered all US government agencies to stop using Claude and other Anthropic services, escalating an already volatile feud between the Department of Defense and company over AI safeguards. Taking to Truth Social on Friday afternoon, the president said there would be a six-month phase out period for federal agencies, including the Defense Department, to migrate off of Anthropic's products.

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