As the anatomy of the brain changes, its activity changes as well.

随着大脑结构的变化，它的活动也在发生变化。

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During REM sleep, our brain's electrical activity mirrors its activity when we're awake.

在快速眼动睡眠期，我们大脑的脑电活动反映了我们醒着时大脑的活动。

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However, evidence has increasingly shown that brain activity during sleep is very similar to its activity while learning.

然而，越来越多的证据显示，人在睡觉时大脑的活动与我们清醒时非常相似。

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Turning the Page for us refers to the HIV prevention research world really entering a new period in its activity, That new period comes 30 years into the HIV/AIDS epidemic.

VOA: standard.2010.07.15

And so you can imagine that even in its— with all of this activity on your skin, even at its most--least serious level, it's a terrible disease.

你可以想象这些,即使在,伴随着皮肤上的任何运动,即使是最轻微的活动,也会带来严重的问题

耶鲁公开课 - 生物医学工程探索课程节选

In this case, a receptor tyrosine kinase is a receptor molecule that binds a ligand at its surface outside the cell and initiates this enzyme activity - this kinase activity - and causes phosphorylation of another molecule.

在这个例子中,酪氨酸激酶受体可以,在细胞表面区域与配体结合,从而激发出,激酶的活性,使其能够磷酸化另一类分子

耶鲁公开课 - 生物医学工程探索课程节选

The Justice Department can give you more details about its activity in response to that price surge.

WHITEHOUSE: Press Briefing

Dr Audero's experiment did not manipulate the receptor gene directly but, rather, manipulated its activity using the switch.

ECONOMIST: Sudden infant death syndrome

In this case they did it by making a gene work overtime, rather than by suppressing its activity.

ECONOMIST: GM trees are on their way