Before you understand how a psychological curse works you need to know few concepts about the operation of the human mind.

在你明白一个心理诅咒是如何工作之前，你需要懂得一些关于人类心理运作的概念？

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Methods: Overall and detailed knowledge about the disease was told to patients, psychological nursing and corresponding nursing measures were also taken before and after the operation.

方法：手术前后给予病人全面、详细的疾病相关知识宣教，心理护理及采取相应的护理措施。

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The paper presents some psychological methods for changing workers' altitude toward safety and strengthening their safety behaviour and cites mining operation cases in illustration.

论述了安全态度的转变及强化职工安全行为的一些心理学方法，并结合矿山实例予以说明。

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The propaganda leaflets are produced by U.S. Army Psychological Operation units, known as "PsyOps" units.

CNN: NATO leaflets warn Serb troops of 'certain death'

Before I undertake a big operation we start with a psychological examination.

BBC: Denis Mukwege: The rape surgeon of DR Congo

Opponents claim that at best, it is an unnecessary ritual, and that at worst, it is an operation that proves detrimental to the physical and psychological health of the patient.

CNN: Health