So by using the tabulated data, we can really determined heats of formation for most reactions that you might contemplate, OK?
所以,使用这些表格,我们就能确定大多数,你可能碰到的反应的生成热?
That's the set up. We're going to run the reactants, the reaction. The reactants are going to turn into products.
这就是我们的装置,我们要进行反应,让反应物变成生成物。
Well I ought to be able to do that by simply generalizing the loop. And that's what the next piece of code on your a hand out shows you.
好的通过生成这个循环,我应该能够达到目的,这也是你们的讲义中下一段代码。
If it was directly transcribed there'd be regions that are important for making insulin and regions that are not.
如果直接转录的话,那被转录的序列中就会既包括了,和生成胰岛素有关的重要区域,也包括了与之无关的区域
We have one, two, we have four bonding domains.
我们发现一共生成了1,2,3,4根键。
And we haven't talked about reactions at all yet, so you don't need to worry about the specifics of that exactly, but just that if you have this negative change in energy, you have a more stable product than you do reactant.
当然我们还没有开始讨论反应,所以你不用担心它的细节是怎么样的,你只需要知道,如果能量的变化是负值,那么你将得到一个比反应物更稳定的生成物。
Because of this, they can't repair the various kinds of damage they need, or create the amino acids and proteins they need.
他们不能修复各种损伤,或者生成所需的氨基酸蛋白质
- And because I'm writing out a string that's the same length -- -- my strings aren't getting shorter -- it's creating this illusion of some animation.
因为我写了一个长度相同的字符串-,我的字符串不会变的更短-,它生成一个动画幻觉。
What's on the screen are computer generated faces of a Caucasian male and a Caucasian female who don't exist in the real world.
屏幕上面的这些是电脑生成的,一个高加索男性和一个高加索女性的面孔,他们在现实世界中并不存在
It started not really as a planned system not planned by any government.
出于经验才产生的机构,它并不是在一个计划好了的系统中生成的。
You could run the reaction, take solid iron gaseous oxygen, form iron oxide, measure the heat of formation of it, tabulate it.
你可以进行一个反应,用固态铁和氧气生成氧化铁,测量它的生成热,列成表格。
Methane, there are certainly some solid bonds there, but breaking those to form CO2 and water, well it's worth it, right, energetically.
酒精中的确含有很强的化学键,但是打断这些化学键然后生成二氧化碳和水,从能量上来看是值得的。
That's the important message, delta H of formation of the products, minus delta H of formation of the reactants.
去反应物的生成焓,这,是个重要的信息,生成物的生成焓,减去反应物的生成焓。
There's not actually chemical covalent bonds that are formed but it's a non-covalent interaction, usually dominated by hydrogen bonding.
所以配体和受体之间不生成共价键,这是一种非共价化合反应,它们通常以氢键相联
They often involve the generation of what are called 'second messenger' molecules which carry the signal further into the cell.
过程中通常会生成一种叫做,第二信使的分子,将信号更深入地传递至细胞内部
I showed you last day what happens when they form and we were able to electrolyze and make fantastic metals like magnesium.
昨天我讲过,当离子液体形成我们就可以使其电解,生成出神奇的金属,比如镁。
Then, there are antagonists that slow down the amount of neurotransmitters, either because they destroy neurotransmitters or they make it hard to create more.
另一种是抑制剂,抑制剂会抑制神经递质的释放量,有可能是通过破坏神经递质而实现,也可能是通过抑制神经递质的生成而实现
Programs that can produce music that have-- that we recognize as music, that have melodic structure and develop themes, resolve, music that nobody's heard before.
这些程序可以生成,我们认可的音乐,这些音乐具有旋律形态和递进的主题,有转为和音的章节,而且从未有人听到过这些音乐
This stem cell which is reproduced still has the potential to undergo asymmetric division but this one does not.
新生成的干细胞,仍然有潜能进行不对称分裂,但定向祖细胞就不行
HBr They form HBr which is a gas at room temperature and one bar, right.
和常压下是液体,它们生成了,在室温和1巴下是气体。
H- *H + e-> H-* And, clearly, we can't do both.
到一个电子生成*,但我们发现我们不能同时做到两个。
It's a state function. If we know the enthalpy of the products minus the enthalpy of the reactants, right. It's a state function.
如果我们知道生成物的焓减,去反应物的焓的值,它是个态函数,原则上我们可以做到。
Well, I need to write the reaction that forms that compound from it's elements, right?
我需要写出从元素单质生成,这种化合物的反应,对吧?
Pluripotent stem cells that are capable of self-renewal to generate themselves and are capable of dividing into both bioloid and lymphoid progenitor cells.
多能干细胞,是能够通过自我更新进行自我生成的细胞,也能分化成髓系祖细胞,或者淋巴祖细胞
Here, a concept is to introduce a gene that causes the process of new blood vessel growth.
看这儿,一种疗法是导入,可以促进新血管生成的基因
In other words, we choose a convention for the zero of entropy, so that then we can write entropies of products and reactants always referring to the same standard state.
换句话说,我们选择了一个,焓零点的约定,这样我们,就可以总是相对于同样的标准,状态写出生成物和反应物的焓。
Basically, you're introducing this gene into cells that when you give the right inactive drug that will cause the cell to make chemicals that kill it.
概括来说,当你把这个自杀基因导入,含有特定未激活药物的细胞时,二者作用就使细胞生成了,可以杀死自己的化合物
Some form what are called megakaryocytes which become platelets, which are responsible for clotting, for forming a barrier if your circulatory system gets injured so you don't bleed.
还有一些类型的细胞称为巨核细胞,生成有凝血作用的血小板,在你的循环系统受损时形成止血屏障
It takes energy, and this is how it's made.
生成它要吸收能量。
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