Half of your brain stays alert and prepared for danger when you sleep in a new place, a study has revealed.

一项研究表明，当你在一个陌生的地方睡觉时，你的半边大脑会保持警觉并做好准备防范危险。

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A 2011 Australian study of 1,621 people found that people randomly selected to apply sunscreen daily had half the rate of melanomas of people who used cream as needed.

2011年，澳大利亚针对1621人进行的一项研究发现，每天随机选择涂抹防晒霜的人患黑色素瘤的几率是按需使用防晒霜的人的一半。

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In half the cases, the experimenters patted the students lightly on the back of the shoulder for about one second while providing verbal instructions about the study.

在一半的案例中，实验者在提供关于研究的口头说明的同时，会轻轻拍拍学生的肩膀，持续了大约一秒钟的时间。

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The study says mangrove trees provide more than one and a half billion dollars worth of services to ecological systems worldwide.

VOA: special.2010.04.20

Another study found that almost half of American workers expressed concern about their ability to provide for immediate family needs.

VOA: special.2009.03.24

A study in 2005 found that around half of the Cambodian women who die in childbirth succumb to massive blood loss.

VOA: standard.2009.11.10

In this version of the study, half of the people received the normal photograph, and the other half received a blurry copy of the photograph.

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Varadhan, New York University, for his work in probability theory, especially his work on large deviations from expected random behavior which has revolutionized this field of study during the second half of the 20th century, and become a cornerstone of both pure and applied probability.

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Case in point: a Sage study showing half of all women 18-24 want to launch their own ventures.

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