But the research team was able to conclude that infectious diseases and the introduction of new foods were the primary reasons that some genes swept through populations with such speed.

但他的研究团队可以断定，传染病和新的食物是某些基因以如此快的速度成为人类基因的主要原因。

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The research team has already moved nanoparticles through the channels of the mold with fluid, but has not yet moved them through the model with living cells lining the finished product.

研究小组已经将纳米颗粒通过液体输送到了模型通道内，但还没有将他们和活体细胞在模型内层通道中移动。

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Wolfram Alpha's public launch is due in a couple weeks, but I've been putting a preview version of the Wolfram Research site through its paces.

沃尔弗拉姆·阿尔法的公共发射是在两个星期后到期，但我已经把它的步伐，通过一个网站的沃尔夫·勒姆研究预览版本。

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But, through research in Southampton laboratories, the firm is also attempting to refine processing techniques such that levels of nicotine and, in particular, tar in cigarette smoke are reduced.

BBC: BAT targets 'low-risk' cigarettes

It may seem unworkable to have a system that allows competitors to use exact copies of a patented gene simply if they say they arrived at it through their own research, but the law has actually dealt with this problem for centuries.

FORBES: What If They Treated Gene Patents Like Nautical Charts?

The primary function of oxybenzone is to absorb ultraviolet light, but some research shows oxybenzone can be absorbed through the skin.

CNN: STORY HIGHLIGHTS