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For example, sodium in our blood plasma is almost to the point sometimes of 100 millimol or that's very, very concentrated.
比如，钠在我们的血浆中的浓度,有时几乎达到了一百毫克分子,或者说非常非常浓。
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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
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I just come back with my black coffee and my double espresso mocha latte skinny frothed, except it isn't espresso.
我回到桌位上，双手拿着我的黑咖啡,和一杯双倍浓度无咖啡因少泡沫的穆哈咖啡，其实不是无咖啡因的。
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And this is really interesting to think about because you can imagine in our body we have concentrations of all types of ions, and specifically, some seem very, very similar to each other.
这是非常令人感兴趣的,因为大家可以想象一下，在我们的体内我们有,一定浓度的任何类型的离子，而且特别地，其中有一些非常非常地相似。
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But when the concentration in the alloy is 50/50 by mole, something magical happens.
但是当合金中的浓度,是1比1的时候，有些神奇的事发生了。
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It doesn't tell you, this is the equilibrium concentration that you'll end up with.
他无法告诉你,最终平衡时的浓度是多少。
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There can be a supply of them, a storehouse of them that can build up in the body, and so day-to-day fluctuations become less of a problem with fat soluble then water soluble vitamins, because the body can go grab them from a storage depot, if you will.
从而在体内建立起一个供应源,一个脂溶性维生素仓库,这样一来,相比起水溶性维生素,脂溶性维生素的浓度不会每天剧烈波动,因为机体可以任意取用体内的储存
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At some point, maybe a week later, four to eight days later, you would start to see antibody levels rise.
之后,或许一周之后,四天到八天之间,就可以看到抗体的浓度开始上升
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- So I'll have a decaf double espresso mocha skinny with a-- ?" What? What other dimensions are there? Right?
我要一杯双倍浓度无咖啡因的穆哈咖啡-,还有什么其他种类？
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" "I'll have a small coffee please " and a double espresso mocha skinny frothed" except the barista makes a mistake.
我要一小杯咖啡,“还要一杯双倍浓度无咖啡因少泡沫的穆哈咖啡“,除非店员弄错了。
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That rate of rise is steeper so they--antibody levels go up more rapidly and they reach a higher level.
同时,上升速度也更加迅速,以达到更高的浓度水平
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Movement down a concentration gradient occurs fairly rapidly over short distances like a micron or so, like the size of a bacterium.
顺浓度梯度扩散在一微米左右的短距离内,相当迅速,一微米相当于一个细菌的大小
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They're red because they contain a special protein called hemoglobin which is very concentrated inside the cell.
红细胞的红色源于,其内部一种叫做血红蛋白的特殊蛋白质,血红蛋白在细胞内的浓度很高
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Now, we're not thinking about total antibody concentration because you already have a lot of antibodies circulating within your blood and in your fluids.
现在,我们先不考虑抗体总浓度,因为你的体内已存在许多抗体,在血液以及体液中循环
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Even something quite unfavorable might happen at least a little bit spontaneously.
初始浓度是多少,即使有些不太有利的过程。
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If this was tetanus, you got this tetanus vaccine when you were young; you get a boost every five or ten years because your antibody levels are starting to fall.
以破伤风为例,小时候,你接种过破伤风的疫苗,每隔五年或十年要再接种一次,这是因为体内的抗体浓度会下降
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The amount of water that you need to have the optimal sort of concentrations of things is determined by how much urine your kidneys produce and how much they excrete each day.
为了保持体内物质的理想浓度,所需的水量,取决于肾脏每天产生,以及排出体外的尿量
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In addition, the kidney controls the composition of your body of many important ions, sodium bicarbonate which is important in pH balance, potassium.
此外肾脏还能控制,体内很多重要离子的浓度,例如碳酸氢钠,它对于酸碱平衡十分重要,还有钾离子
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When these vesicles dump their contents into the synaptic cleft, the concentration of these ligands rise.
当这些小泡将其内含物释放入突触间隙,这些配体的浓度即增加
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And it is almost like being in love except what it really is is two shots of caffeinated espresso causing a rapid heart rate an increase in respiration, sweaty palms, but I don't realize--she doesn't realize that's what it is.
跟恋爱一样的感觉,其实什么都不是,而是双倍浓度的咖啡因,导致心跳加速,呼吸急促，掌心冒汗，但我没意识到--她没意识到那是什么。
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If there were just-- if you were trying to create a positive reaction of antigens and it showed up naturally wouldn't it create this reaction anyway in terms of your body would create antibodies like the secondary response volume to antibodies?
如果这里仅有,如果在自然条件下,尝试建立抗原的阳性反应,抗体这是否会像这样反应,以你身体为例,你的身体是否会产生,同二次免疫一样的抗体浓度
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So, this is several months and this logarithmic scale on the Y-axis represents antibody concentration.
这是在几个月内,这里使用的是对数刻度,Y轴代表的是抗体的浓度
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If you looked at the antibodies that were present in the blood, for example, you would find that most of those antibodies are IgM during this initial period of antibody concentration rise.
如果你现在观察血液中存在的抗体,举个例子,在初次免疫的抗体浓度上升阶段,你将会发现大部分的抗体都是IgM
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The answer is it will want to reform with itself, and if I have these in solution then how many reform with itself and how many reform with the molecule I'm interested probably depends on the relative concentrations of both in the solution and what conditions I have it at.
答案是质粒有可能会自己闭合,如果质粒和我感兴趣的DNA片段,都在溶液里那有多少质粒会自己合上,有多少与我感兴趣的DNA重组呢,这大概取决于两者在溶液里的相对浓度,和我让溶液处在什么条件下
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It's got two shots of caffeinated espresso.
它带了双倍浓度的咖啡因。
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" "A double espresso mocha skinny frothed."
双倍浓度无咖啡因少泡沫的穆哈咖啡“
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