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新SAT必读演讲：神经系统流行病

2016-08-04 17:52:16来源：网络

　　新SAT考试范围较广，一些名人演讲常常出现在SAT试题中。新东方在线SAT频道为大家带来新SAT必读演讲：The coming neurological epidemic 神经系统流行病，希望对大家SAT备考有所帮助。新SAT必读演讲大全>>查看全部

　　新SAT必读演讲：神经系统流行病

　　今日名人

　　Gregory Petsko

　　Gregory Petsko is a biochemist who studies the proteins of the body and their biochemical function. Working with Dagmar Ringe, he's doing pioneering work in the way we look at proteins and what they do.

　　Why you should listen

　　Gregory Petsko's own biography, on his Brandeis faculty homepage, might seem intimidatingly abstruse to the non-biochemist -- he studies "the structural basis for efficient enzymic catalysis of proton and hydride transfer; the role of the metal ions in bridged bimetalloenzyme active sites; direct visualization of proteins in action by time-resolved protein crystallography; the evolution of new enzyme activities from old ones; and the biology of the quiescent state in eukaryotic cells."

　　But for someone so deeply in touch with the minutest parts of our bodies, Petsko is also a wide-ranging mind, concerned about larger health policy issues. The effect of mass population shifts -- such as our current trend toward a senior-citizen society -- maps onto his world of tiny proteins to create a compeling new worldview.

新SAT必读演讲大全>>查看全部

　　新SAT必读演讲英语字幕

　　英语字幕

　　Unless we do something to prevent it, over the next 40 years we’re facing an epidemic of neurologic diseases on a global scale. A cheery thought. On this map, every country that’s colored blue has more than 20 percent of its population over the age of 65. This is the world we live in. And this is the world your children will live in. For 12,000 years, the distribution of ages in the human populationhas looked like a pyramid, with the oldest on top. It’s already flattening out. By 2050, it’s going to be a column and will start to invert.

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本文关键字: 新SAT必读演讲 神经系统

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