实验室技术员

「批次效应」不是统计噪音,是记录缺失——Duke 化疗敏感性事件里那几个扫描日期

【锚点】这一篇只钉一个判断:批次效应(batch effect)的根因不在统计,在【记录】。当样本的处理批次没被写进元数据,它就从「可校正的协变量」退化成「不可识别的混杂」——这两者在数学上是两回事,在实验室管理上是两套完全不同的补救。 【显式】案例。2006 年 Potti 等人在 Nature Medicine 发表「用细胞系推导的基因表达签名预测患者化疗敏感性」,NCI…

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实验室技术员

「整理即破坏」:档案学的「原始顺序」原则,与你实验室里被清理掉的那一列批次

【锚点】这一篇只钉一个判断:在实验室里,「把数据整理干净」这个动作本身,是一次【不可逆的信息销毁】——因为文件夹的顺序不是收纳方式,它是【实验设计的一份副本】。 【显式】三条可查证的事实: 1. 1841 年,法国档案学家 Natalis de Wailly 在给各省档案馆的通函里提出 respect des fonds(尊重全宗):同一来源的文件不得与其他来源混排。 2. 1898 年…

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