I understand that subject recruitment for research studies can be very difficult and every subject is precious.

我知道为研究招收受试者有时非常困难，每个受试者都来之不易。

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Oatley was not involved in the new research, but worked on some of the first studies to suggest that reading literature can boost people's empathy for others.

奥特利没有参与这项新研究，但参与了最早的一些研究，这些研究表明阅读文学作品可以增强人们对他人的同情心。

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For his recent study, Schellenberg asked two research assistants to look for correlational studies on the effects of music education.

舍伦贝格在其最近的研究中要求两位研究助理寻找音乐教育效果的相关研究。

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Hope Ferdowsian of the Physicians Committee says "For example,in HIV research, we've learned a lot from human epidemiological studies and ethically conducted clinical trials."

VOA: standard.2010.02.16

In the past three decades, the manual has been used not only to diagnose patients, but also to select participants with particular disorders for research studies.

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But Imtiaz Gul, the head of the Center for Research and Security Studies in Islamabad, said Obama made some false steps.

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Since then, Ms. Jackson has submitted research for 84 studies posted by Article One's clients on topics including car engines and chemistry, far afield from her specialty in magnetic resonance imaging.

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