Often that signal gets amplified so it can be used, same thing happens inside cells and there's some output that's generated.
通常这些信号要放大后才会产生作用,诱发细胞内发生一些变化,并产生某种输出信号
They're everywhere in cells throughout your body and they are responsible for lots of the biochemistry of cell/cell interaction and signaling.
它们在身体各处的细胞中都有,并负责很多细胞间的相互作用,及信号转导的生化过程
It's annoying because your brains are wired up so that that baby cry is going to drive you up the wall.
它干扰到了,因为大脑接到信号,孩子哭是向你发出信号。
Computers don't have so much the same kind of blinking lights.
计算机没有这么多种类的闪烁光信号。
The sound is the sign of his work.
这声音是他劳动的信号。
The third way that we--that composers signal to us that we pick up almost intuitively the whereabouts of downbeats is through patterns of accompaniment. We'll call it range.
第三条途径,是作曲家给我们的信号,让我们几乎能马上挑出,哪个是重拍的途径,是通过伴奏的样式,我们称之为音域
This is a sign of divine approval.
这是好运来临的信号。
And then deliver those computer signals either to guide the computer cursor on the screen or onto robotic arm to move the arm or perhaps even muscle stimulators to re-animate the paralyzed arm.
然后传递这些计算机信号,操控电脑屏上的光标,或者机器人手臂来活动手臂,或者甚至可能肌肉刺激器来让瘫痪的手臂重新动起来。
This is a signal - this passing of phosphorous - is a signal that's used very frequently in intracellular communication.
这是一种信号,一种通过磷酸来传递的信号,这种信号在细胞内通讯时经常被用到
And what has happened is they're using this bodily cue of their heartbeat to infer that that's who they find more attractive.
事实上,他们在用自己身体的信号,心跳的强度来确定谁更有魅力。
That signal is carried here, for example, by the concentration of second messengers - the concentration of something else.
这里这个信号由,第二信使的浓度,即另一种物质的浓度来传递
It might be getting a signal from this receptor and a signal from this receptor, and a signal from this receptor.
细胞可能同时从这个受体,这个受体,以及这个受体接收信号
So, this pathway might not be the only one that's being activated inside the cell at any given time.
因此,任一时刻细胞内,激活的信号通路不只是一条
So, in order to have fast transmission you do that by transmitting electrical signals; that happens pretty quickly.
所以 为了使信号迅速地传播,细胞使用电信号,它速度非常快
This is commonly used in the immune system as well, but it's a way of amplifying a signal.
免疫系统也常使用这种方法,但这主要是一种放大信号的方式
In the case of a ligand-receptor, a chemical signal in the form of a concentration of ligand gets converted into a biochemical signal.
在配体-受体系统中,配体浓度这种化学信号,转化为生化信号
The heater is on, it's producing heat until a negative signal is registered, 'oh we've gone too high', and then it turns off.
加热器会开着,一直产生热量直到它得到一个关闭的信号,噢我们弄得太热了,然后就关闭了
Take a step way back and think about what's the basic mechanism by which cells receive signals.
现在让我们回过头来思考,细胞接收信号的基本原理
They're not responsible necessarily for moving molecules inside and out, but they sit at the outside of the cell and they wait for signals.
它们不负责将分子运进运出,而是冲着细胞外面坐等信号
You have to use sound signals to figure out the boundaries between the words.
你必须要用声音信号,来确定单词之间的界线
Many neurotransmitters that carry signals between neurons in your brain work this way.
在脑部神经元细胞中,传递信号的神经递质分子的,作用原理就是如此
Well, it might be that this signal is a signal to divide.
这可能是那些让细胞开始分裂的信号
There are sensory neurons, which take information from the world so as you see me, for instance, there are neurons firing from your retina sending signals to your brain.
感觉神经元,负责收集外界信息,比如,当你看到我的时候,视网膜上的神经元会产生神经冲动,将刺激信号传递到你的大脑
They only kill cells that have the signal which stimulated them.
只能杀死那些带有能激活,它们的标记信号的细胞
Is it really your body that will signal this to you?
真的是你们的身体给你们信号的吗
These signaling proteins play important roles in determining how many cells differentiate down particular pathways and they turn out also to be very useful for treating diseases of those pathways.
这些信号蛋白在决定特定分化路径上,有多少细胞在分化时起着重要作用,且在治疗疾病方面也很有用,同样也是利用这些机制
It could be the integration of many different chemical signals.
它很可能是多种不同化学信号的整合
Now these are electrodes that are only sending out signals.
现阶段这些电极只能发出信号
And the laughter is a signal this isn't real.
笑就是说明它是闹着玩的一个信号。
A reaction performed by one enzyme creates a product that stimulates another enzyme that creates a product, and stimulates another enzyme, and through this cascade of reactions you amplify and carry the signal forward.
一种酶催化生成的产物会活化另一种酶,而它催化的产物又能激活其他酶,催化反应生成另一种产物,通过这层层反应,信号被放大,并不断向前传递
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