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When a Marine gets hit by a laser beam, his weapon gets de-activated.
VOA: standard.2010.04.06
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What I want you to remember is that specific sub-populations of cells get activated, the activation results in a specific response.
我希望你们记住的是,一些特定的细胞亚群受到刺激时,被激活细胞将引起特定的应答
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Because if it was a neurotransmitter activated ion channel, what would happen when the neurotransmitter bound here?
因为假如这是一个,神经递质激活的离子通道,当神经递质结合于此的时候,会发生些什么呢
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When you touch boiling water, for example,get a cut, or even exercise too much, a special receptor on the neuron is activated, sending a signal to the brain - that hurts!.
VOA: standard.2010.05.04
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They're sometimes called transcription factors and this is an example of a transcription factor that is itself activated or turned on by the presence of a steroid.
它们被称为转录因子,转录因子的一个例子就是,能够自激活或被激素激活
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It took several years of further experiments and analysis, but During and his colleagues ultimately concluded that the mild stress of all that activity and interaction activated a communication channel that prompts fat cells to stop releasing a hormone called leptin, which accelerates cancer growth.
VOA: standard.2010.07.14
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There are 100 of these molecules, when a receptor gets activated a kinase activity gets activated, the kinase acts on the protein, the protein gets switched on, something new starts to happen inside the cell.
有一百个这样的分子,当受体被激活,激酶被激活后,激酶作用于蛋白,使蛋白活化,细胞中就会发生一些新变化
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You can put somebody in an MRI machine now and have them read a book and look at what parts of their brain become activated when they're reading and what parts stop activating when they stop reading, so you can learn where in their brain is reading done.
现在如果有人躺在核磁共振仪中进行阅读,我们就可以看到,在阅读时,大脑哪些部位变得活跃,停止阅读时哪些部位停止活动,这样我们就知道了,大脑中什么部位是和阅读相关的
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The other part of the adaptive immune system is the cell mediated immune system and this is an immune where that doesn't involve antibodies but involves cells that are activated in response to a foreign antigen and that utilize cellular means to get rid of it.
获得性免疫系统还包括,细胞免疫,这一免疫反应不包含抗体,但包含可以被激活来应答,并清除外源抗原的免疫细胞
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One of the results of that stimulation is that B-cells - a particular subset of B-cells - gets activated.
这种激活的结果之一就是,B细胞,一类特别的B细胞亚族被激活
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One of the enzymes that often gets activated is an enzyme which converts ATP, a small molecule that is inside all of our cells.
在经常被激活的酶中有一种酶,其功能是转化ATP,ATP是一种,存在于所有细胞中的小分子物质
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They come from B-cells, they come from B-cells that are activated with a specific antigen.
抗体来自于B细胞,它们来自于被特别的抗原所激活的B细胞
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When a certain enzyme is activated inside cells, ATP gets converted into a molecule called cyclic AMP, and cyclic AMP is an example of one of these molecules called second messengers.
细胞内的某种酶被激活后,ATP就能转化为一种叫cAMP的分子,cAMP是一种第二信使分子的范例
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It gets produced in response to a signal so there's a binding of a ligand to a receptor, the enzyme that does this conversion is activated and more cycle AMP is released.
这类分子的产生是对信号做出的一种反应,当配体和受体结合时,催化这种转化过程的酶被激活,更多的cAMP释放出来
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So, when the right signal is received, the right T-cell finds your host cell with a foreign virus in it, the first thing that happens is that this T-cell becomes activated and it starts reproducing, making more copies of itself.
所以 当接收到正确的信号,恰当的T细胞寻觅到,感染外源病毒的细胞时,首先发生的是,T细胞被激活并开始增殖,制造更多自身拷贝
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