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SSS 2011-02-10

时间:2011-03-04 03:49来源:互联网 提供网友:yw7514   字体: [ ]
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    (单词翻译:双击或拖选)

This is Scientific American’s 60-Second Science. I’m Steve Mirsky. Got a minute?

Good news for chilly1 doctors—you can wear long sleeves with impunity2 inside hospitals, because University of Colorado researchers find that docs pick up just as much bacteria when their forearms are bare as they do when wearing long sleeves. The study is in the Journal of Hospital Medicine.

Britain recently issued guidelines that banned white coats and long sleeves in hospitals in the hope that the move would decrease the chances of picking up and transferring bacteria, especially the scourge3 of MRSA: methicillin-resistant staph. The research team wanted to see if the rule would actually help. They had 50 doctors start a workday wearing a freshly washed short-sleeve shirt and another 50 in their unwashed long-sleeved white coats.

Samples were taken from all 100 docs, at the wrists, pockets and cuffs4, if they had them. And by the end of an eight-hour shift, both groups of physicians were carrying similar bacteria loads. In fact, after just three hours the short-sleeved docs were already hosting half of the bacteria as the docs wearing unwashed coats. So go ahead and wear long sleeves in the hospital. If you’re gonna wash something, make it your hands.

Thanks for the minute. For Scientific American’s 60-Second Science, I’m Steve Mirsky.


点击收听单词发音收听单词发音  

1 chilly pOfzl     
adj.凉快的,寒冷的
参考例句:
  • I feel chilly without a coat.我由于没有穿大衣而感到凉飕飕的。
  • I grew chilly when the fire went out.炉火熄灭后,寒气逼人。
2 impunity g9Qxb     
n.(惩罚、损失、伤害等的)免除
参考例句:
  • You will not escape with impunity.你不可能逃脱惩罚。
  • The impunity what compulsory insurance sets does not include escapement.交强险规定的免责范围不包括逃逸。
3 scourge FD2zj     
n.灾难,祸害;v.蹂躏
参考例句:
  • Smallpox was once the scourge of the world.天花曾是世界的大患。
  • The new boss was the scourge of the inefficient.新老板来了以后,不称职的人就遭殃了。
4 cuffs 4f67c64175ca73d89c78d4bd6a85e3ed     
n.袖口( cuff的名词复数 )v.掌打,拳打( cuff的第三人称单数 )
参考例句:
  • a collar and cuffs of white lace 带白色蕾丝花边的衣领和袖口
  • The cuffs of his shirt were fraying. 他衬衣的袖口磨破了。
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