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The W.H.O.is now advising infected women to begin antiretroviral drugs at fourteen weeks of pregnancy, instead of twenty-eight.
VOA: special.2009.12.02
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Now, before, of course, in the first part of the class u we started out looking at u H and then looking at H not as functions of S and V or S and p, but as functions of temperature, mostly.
现在，在本课的前一部分,我们首先讨论了,然后讨论了,这两个量并未写成S和V或者S和p的函数，而是写成了温度的函数。
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You can find equally cute bags at H&M or Topshop or whatever.
你在H&M或者Topshop或者别处可以找到一样可爱的手提袋。
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At current growth rates, the W.H.O.expects the number to reach twenty million by two thousand fifteen.
VOA: special.2009.07.15
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And it's more dramatic if the system is a gas p T2 V2 p, T2, V2, And let's look at what happens to U these functions of state, to H to u under this transformation.
如果是气体这个系统,就更具有趣了,让我们看看H和，在这个变化中态函数会发生什么变化。
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Also at the conference, scientists presented the latest findings about new mothers infected with H.I.V.
VOA: special.2009.07.29
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At the end of the day that's where Alexander H. Stephens went, with his Cornerstone Speech in 1861.
最后,就在那里,亚历山大斯蒂芬斯,于1861年完成了著名的基石演讲
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The W.H.O.says the tobacco industry has increasingly directed its marketing campaigns at women and girls.
VOA: special.2010.05.31
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So, in talking about covalent bonds, we should be able to still apply a more general definition of a chemical bond, which should tell us that the h 2 molecule is going to be lower in energy than if we looked at 2 separate hydrogen atom molecules.
那么，既然提到了共价键，我们应该还可以,给化学键下一个更普遍的定义,那就是告诉我们氢分子能量应该更低,与两个分开的氢的单原子分子相比。
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H-P and private investigators found no violation of the sexual harassment policy at the company.
VOA: special.2010.08.13
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So we are really looking at this reaction here H+ for ionization. It is H gas neutral goes to H plus in the gas phase plus the electron. And, furthermore, we can have multiple ionization energies.
所以我们真正看到的是,电离，它是在气相中H变为,和电子的过程，还有，我们能电离能加倍。
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The experts at N.I.H.say you may have to repeat this process a few times.
VOA: special.2010.03.31
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so I shop at the stores where most young girls shop, H&M, Forever 21, you know.
所以我就在大部分年轻姑娘购物的地方购物，H&M、Forever 21什么的，你知道。
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Educated girls are also at lower risk of violence,abuse and diseases like H.I.V./AIDS.
VOA: special.2010.05.20
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Whereas under these conditions, these quantities, if you look at free energy change, for example at constant temperature and pressure, H you can still calculate H.
但是，在这些条件下，这些物理量，如果我们考察自由能的变化,例如在恒定的温度和压强下，我们仍然可以计算。
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And the man took it, and looked at it careful, and turned it round this way and that, and says,"H'm,so it is.Well, what is he good for?"
VOA: special.2009.08.29
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So, let's change our graph where we now have this zero point set as the two individuals hydrogen atoms, and then we see that our h 2 molecule is at the negative of the dissociation energy, or the negative what that bond strength is.
那么让我们把曲线图中的零点能改到,两个分离的氢原子处，那我们就会看到,氢分子就是负的离解能，或者负的键的强度。
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Doctor Anthony Fauci at N.I.H.called the findings an important step forward.
VOA: special.2009.09.30
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So if you had a high temperature, this a small compared to b. If you're negative which means that dT/dp at constant H is less than zero.
高于反转温度，这一项相比于b很小,意味着H恒定时,偏T偏p小于零。
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The more important thing that I want you to notice when you're looking at this wave equation for a 1 s h atom, is the fact that if you look at the angular component of the wave function, you'll notice that it's a constant.
我要你们注意的,更重要的一点是,当你们看到,这个氢原子1s轨道方程的时候，如果你们看,波函数，的角向部分，你们会发现它是一个常数。
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So in principle, if I measure how much hotter, I can determine how much heat was produced, and from that, I should be able H to calculate delta H at T1.
所以原则上，如果我测量，变热了多少，我就能确定，有多少热被产生,从中我就可以计算T1下的Δ
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And H is minimized at equilibrium.
我们已经知道，平衡态下H是最小的。
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Let's look at those quantities. u and H.
然后看u和H这两个物理量。
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And I picked looking at methane so we could see if there are other factors that we're not considering, that we need to maybe tweak our model a little bit, and I think we'll find that we do if we take a look at a polyatomic molecule, methane, CH4 so c h 4.
我选择甲烷这个例子，我们可以看到,如果有一些我们没有考虑到的因素，我们需要修改一下我们的模型，我们看一看,甲烷CH4这个多原子分子，就会知道这一点，甲烷。
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