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| 	Dawn simulation  : ウィキペディア英語版 |   Dawn simulation
  Dawn simulation is a technique that involves timing lights in the bedroom to come on gradually, over a period of 30 minutes to 2 hours, before awakening. ==History== The concept of dawn simulation was first patented in 1890〔http://www.google.com/patents?tbs=bks%3A1&tbo=1&q=mechanical%20sunrise&btnG=Search%20Patents&scoring=2〕 as "mechanical sunrise". Modern electronic units were patented in 1973.〔http://www.google.com/patents?tbs=bks%3A1&tbo=1&q=artificial+sunrise&btnG=Search+Patents〕 Variations and improvements seem to get patented every few years. Clinical trials were conducted by David Avery, MD,〔http://depts.washington.edu/pbscifac/Avery_CV.pdf〕 in the 1980s at Columbia University following a long line of basic laboratory research that showed animals' circadian rhythms to be exquisitely sensitive to the dim, gradually rising dawn signal at the end of the night.
  抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Dawn simulation」の詳細全文を読む
 
 
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