UV radiation appears to diminish the effectiveness of the immune system by changing the activity and distribution of the cells responsible for triggering immune responses.

紫外线辐射似乎会改变触发免疫反应的细胞的活动和分布，从而降低免疫系统的有效性。

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The volunteers, whose brains were wired up to a computer, enhanced one of two competing images of famous people or objects by changing firing rates in individual brain cells.

这些志愿者的大脑被用各种电线连接到一台计算机上，这些人通过改变各自脑细胞的电波电频率，使两个名人或是事物的图像中间的一个颜色加深。

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Bernstein says Latisse in fact does work because it is changing the molecular structure of the hair cells.

Bernstein说事实上，Latisse能够起作用，是因为它改变了头发细胞的分子结构。

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What's changing along here is the what's changing along this pathway is the expression pattern of genes in cells.

因此这里改变的是,在这条途径上改变的是,基因表达的模式

耶鲁公开课 - 生物医学工程探索课程节选

The same thing with these cells here, as these cells undergo continual divisions, they're changing in ways that make them mature, that make them more like the mature cells of the nervous system, for example, if that's where they end up being but they're losing potential as they go through that differentiation process.

细胞也是这样,在连续分裂的过程中,它们愈发成熟,比如说,变得越来越像,神经系统细胞,如果它们最终将构成神经系统的话,那它们在分化的过程中,就失去了许多潜能

耶鲁公开课 - 生物医学工程探索课程节选

They are now trying to establish the steps involved in the cells changing from pancreas to liver cells.

BBC: Cell discovery may aid liver transplants

On Monday, the 2012 prize for medicine or physiology was awarded to John Gurdon from the UK and Shinya Yamanaka from Japan for changing adult cells into stem cells, which can become any other type of cell in the body.

BBC: Serge Haroche and David Wineland

On Monday, the 2012 prize for medicine or physiology was awarded to John Gurdon from the UK and Shinya Yamanaka from Japan for changing adult cells into stem cells, and on Tuesday the prize for physics was awarded to Serge Haroche of France and David Wineland of the US for their work in querying single light and matter particles.

BBC: Chemistry Nobel goes to Robert Lefkowitz and Brian Kobilka