October 3, 2016, Tokyo, Japan - Japan's Tokyo Institute of Technology professor Yoshinori Ohsumi (R ) receives a flower bouquet upon his arrival at his college in Tokyo on Monday, October 3, 2016. Ohsumi received this year's Nobel Prize in Physiology or Medicine for his discoveries of mechanism of autophagy. (Photo by Yoshio Tsunoda/AFLO) LWX -ytd-