英国《自然》期刊揭露叶诗文奥运造假-经管之家官网！

　　当地时间，英国《自然》杂志网站英国《自然》期刊揭露叶诗文奥运造假，称其在伦敦奥运，游泳最后50米中表现统计数据造假，记录数据存在选择性，对兴奋剂尿检提出质疑，《自然》期刊揭露叶诗文的成绩‘反常’有一记录数据造假。

　　当地时间8月1日，《自然》杂志网站发表题为《为什么奥运会上的卓越表现引发怀疑》的文章，该文作者尤恩·卡拉韦认为，叶诗文夺得伦敦奥运会女子400米个人混合泳金牌的卓越表现是“异常”的，即使当前的药检结果清白，也不能完全排除服用兴奋剂的可能。

　　叶诗文表现“异常”来源数据比较，统计学典型目的选取数据。药检结果清白也不能排除服用兴奋剂，试图用科学的态度揭露叶的造假。

At the Olympics, how fast is too fast? That question has dogged Chinese swimmer Ye Shiwen after the 16-year-old shattered the world record in the women's 400-metre individual medley (400 IM) on Saturday. In the wake of that race, some swimming experts wondered whether Ye’s win was aided by performance-enhancing drugs. She has never tested positive for a banned substance and the International Olympic Committee on Tuesday declared that her post-race test was clean. The resulting debate has been tinged with racial and political undertones, but little science. Nature examines whether and how an athlete's performance history and the limits of human physiology could be used to catch dopers.

Was Ye’s performance anomalous?

Yes. Her time in the 400 IM was more than 7 seconds faster than her time in the same event at a major meet in July 2011. But what really raised eyebrows was her showing in the last 50 metres, which she swam faster than US swimmer Ryan Lochte did when he won gold in the men’s 400 IM on Saturday, with the second-fastest time ever for that event.

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