Objective: to explore the age-related change of bone mineral density (BMD) of the lumbar spine among the female after controlling the following influential factors: weight and the center effect.

目的：探讨控制体重以及中心效应的影响后，我国女性腰椎骨密度随年龄的变化趋势。

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The implode effect simulates the center of your image being sucked into a virtual black hole.

内爆效果模拟了您图像的中心被吸入虚拟黑洞的情形。

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'the closer the country was to Chernobyl, the stronger the effect,' said study co-author Hagen Scherb, a biostatistician at the German Research Center for Environmental Health in Munich.

这一研究的作者之一哈根舍布说：“离切尔诺贝利越近的国家，受到的影响越大。”舍布是位于慕尼黑的德国环境与健康研究中心的一位生物统计学家。

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And the Bipartisan Policy Center estimates that over two years the effect would be a million jobs.

WHITEHOUSE: Press Briefing

Therefore, people who are using the Internet legitimately need not fear a chilling effect, said Mark Litvack, vice president and legal director of anti-piracy for the MPAA. Jonathan Zittrain, also a fellow at the Berkman Center, agreed, saying that such an effect need only be feared if the MPAA tries to push the ruling too far.

CNN: MPAA pursues people who post link to DeCSS code

That has led the Manomet Center for Conservation Sciences to say that the net effect on greenhouse gas emissions is higher.

FORBES: Biomass Breathing New Life Into Coal Plants