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[SAWYERS:] BCR-ABL is a kinase. I want you to watch it change. It's flipping back and forth from an active to an inactive conformation. Now, we're looking at the skeleton and you see that lo...

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Books and Arts; Book Review; New fiction; Rings of truth. Gold. By Chris Cleave. Novels about sport are notoriously hard to pull off. It seems somewhat odd for a literary mind to care how often a...

文艺 书评 新小说 真实的故事 《赤子之心》 克瑞斯·克里夫着 写一部关于体育运动的小说，显然是有难度的。让文学去关注一粒球怎样入网，冲刺终点需要多长时间，看起来多少有点奇怪。然而，事实也不尽然。古典文学所追求的叙述方式往...

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ANDREW BERRY: Evolution by natural selection. This is an idea that has been sought after since the dawn of human thought. And it was a theory that was discovered by two people, and we've...

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The malaria parasite is an ancient organism. It has been with us since before we were human. Famous victims include Alexander the Great Genghis Khan and George, Washington. The malaria lifecy...

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Many years ago,a young man named Giovanni Guasconti left his home in Naples to study in northern Italy.He rented a small room on the top floor of a dark and ancient palace.Long ago, the building had b...

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[NARRATOR:] Mosquitoes are usually vegetarian, preferring to drink nectar, fruit juices, and honeydew. Only a pregnant mosquito will bite humans, seeking nutrients from blood to nourish he...

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SEAN CARROLL: For tens of thousands of years, much of North America lay buried under ice up to a mile thick. Then the massive ice sheets receded. In what is now Alaska, ocean bound stream...

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So the basic concept is that heat inside the Earth drives motions. We have convection currents, through which heat is dissipated from the interior of the Earth. Those convection current...