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听力等级

  

2024-08-31   Intermediate
The Real Killer Of The Dinosaurs, Part Two

Keywords:

But now the grand finale was about to begin. About 50,000 years before impact, the true apocalypse came. Like a cosmic horror breaking out of its prison, the Deccan Traps roared and scre...

但现在大结局即将到来 开始。撞击前约 50,000 年, 真正的启示录来了。像宇宙一样 恐怖地冲出监狱, 德干陷阱咆哮着,尖叫着, 开始喷出数十万亿的 数吨的岩浆和更致命的气体 在持续数年的猛攻中 千年。滚动...


2024-08-29   Intermediate
The Real Killer Of The Dinosaurs, Part One

Keywords:

A ruthless murder was committed! Someone killed the dinosaurs and we have the murderer! Witnesses say that an Everest-sized asteroid hit Earth, devastated the planet and caused a mass ex...

一场无情的谋杀!有人被杀 恐龙和凶手!证人 说珠穆朗玛峰大小的小行星撞击 地球,摧毁了地球并导致 一场大规模灭绝。一个简单而迷人的 和令人信服的解释。或。。。是吗? 在过去的几年里,新的证据 重振了指向 对第...


2024-08-27   Intermediate
An Indirect Way to Tame Cancer, Part Three

Keywords:

Rakesh Jain: We said – we asked the questions what molecules in our body control the production of collagen, and the growth factor that is the master regulator of collagen is known as TGF beta, transf...

Rakesh Jain:我们说——我们问了我们体内的哪些分子控制胶原蛋白的产生,而作为胶原蛋白主要调节因子的生长因子被称为 TGF β,即转化生长因子 β。因此,我们开始在文献中寻找 FDA 批准的药物可以阻断 TGF β 的活性,事实上,...


2024-08-25   Intermediate
An Indirect Way to Tame Cancer, Part Two

Keywords:

Rakesh Jain: But in addition, even if the drugs get into the hypoxic region, somehow you could do that, they stop functioning there, because a lot of the drugs, for them to function they require oxyge...

Rakesh Jain:但除此之外,即使药物进入了缺氧区域,不知何故,它们也会在那里停止运作,因为很多药物需要氧气才能发挥作用。 辐射也是如此;放射疗法是最常见的癌症治疗方法,需要氧气。因为辐射的作用是将氧转化为所谓的氧自由基,这就是导致...


2024-08-23   Intermediate
An Indirect Way to Tame Cancer, Part One

Keywords:

Steve Mirsky: Cancer therapy is almost always looked at as a molecular issue. When we hear about a new cancer drug it’s usually a molecule. And your attempts to deal with cancer obviously are molecu...

Steve Mirsky:癌症治疗几乎总是被视为一个分子问题。当我们听说一种新的抗癌药物时,它通常是一种分子。您处理癌症的尝试显然本质上是分子的,但它们是在结构考虑和物理学的背景下进行的。 Rakesh Jain:是的。我们的想法是,物理...


2024-08-21   Intermediate
The Paradox of an Infinite Universe, Part Two

Keywords:

How big would such a hyper donut universe be? Well, because of its strange geometry, actually this is kind of the smallest possible universe – potentially just a few times bigger than th...

这样一个超级甜甜圈宇宙会有多大 是?嗯,因为它的几何形状很奇怪, 实际上,这是尽可能小的 宇宙 – 可能只是大几倍 而不是可观测的宇宙。但它可能会 也要 WAY, WAY GREATER。不知道。 还行。对于有限的宇...


2024-08-19   Intermediate
The Paradox of an Infinite Universe, Part One

Keywords:

Is the universe infinite? Does it have an edge? And if so, what would you see if you went there? Today we know that the universe had a beginning 14 billion years ago and that it's been exp...

宇宙是无限的吗?它有优势吗? 如果是这样,如果你去了那里,你会看到什么? 今天我们知道宇宙有一个开始 140 亿年前,一直如此 从那时起不断扩大。但 expanding 也应该有一条边,对吧? 嗯,有点像。 信...


2024-08-17   Intermediate
Synthetic Biology and Conservation with Kent Redford - Ⅴ

Keywords:

Kent Redford: So much of this conversation to so far has been about species, and that is the thing that attracts people a lot to this issue of de-extinction and bringing back species and what ha...

Kent Redford:到目前为止,这次对话的大部分内容都是关于物种的,这就是吸引人们关注灭绝和恢复物种的问题的原因,但我认为,如果我猜的话,这将是保护和合成生物学之间需要进行的对话中相当小的一部分。让我给你举几个例子,说明现在正在开发的...


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