Donald Trump has spent much of his second term at war with science and scientists. He is cutting staff at institutions such as the Environmental Protection Agency (EPA) by a third, and has cancelled or frozen up to 8,000 federal research grants. This hasn’t just hurt individual research programmes, it has damaged America’s credibility as a reliable partner in the scientific community. It is not surprising that many researchers – one poll last year by the journal Nature gave the number of 75% – say they are considering leaving the US entirely.
Balanced against that, finding cancers early and treating them can save lives. But it's difficult for doctors to work out which cancers are going to be aggressive and spread, which means men can be treated unnecessarily.
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对于普通创业者，银发经济的切入点在于“细分场景的深度服务”。例如，永安市推出的“共享奶奶”等改革创新品牌，展示了如何通过社区互助模式挖掘银发群体的劳动力余热及服务需求 [40]。此外，结合“以旧换新”政策，针对老年人家庭的智能家电更新换代和适老化家具配置，亦是极具潜力的低门槛创业方向 [5, 13]。
千问将在西班牙巴塞罗那举行的 2026 年世界移动通信大会（MWC）上发布首款同名 AI 眼镜，并于 3 月 2 日开启线上线下全渠道预约。
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