Chemicals from our phone and TV screens are accumulating in the brains of endangered dolphins and porpoises. New research shows these "liquid crystal monomers" from e-waste can cross the blood-brain barrier and may disrupt DNA repair, highlighting the growing impact of electronics on marine life.

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Making freshness obvious requires explicit signals that AI models can easily detect. The most straightforward approach is including "Last updated: [Date]" at the top of articles, making it immediately clear that the content reflects current information. This simple addition can significantly impact whether AI models view your content as relevant for queries about current state or recent developments.

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"It is the only piece of science I've ever done that's really emotionally got me," he says.

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第十六条 纳税人采用销售额和增值税税额合并定价方法的,按照下列公式计算销售额: