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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数据要素正成为经济社会高质量发展关键动能。从历史演进规律看,每一次划时代的生产力飞跃,均由关键生产要素的革新所驱动,农业文明土地与劳力是核心要素,工业文明依靠资本与技术,而正在蓬勃兴起的数字文明,其核心驱动力正转向数据;从国际格局演变看,数据主权已成为国家综合竞争力的重要体现,直接关系到一国能否在未来全球竞争体系中赢得主动、塑造优势;从国内发展需求看,数据要素已深度融入生产、分配、流通、消费等各环节,正引发生产方式、社会结构和治理模式的重塑,成为突围破局的重要抓手、价值创造的重要源泉、赋能发展的重要动力,对于促进科技协同创新、产业转型升级、区域协调发展、社会精准治理等方面具有“四两拨千斤”的作用。

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去年三次调价累计涨超45%

They are almost the same: they share the same underlying array. You do get a copy of the little (ptr, len, capacity) struct which is what a slice is.