Nobel laureate Yamanaka in Stockholm

Nobel laureate Yamanaka in Stockholm

STOCKHOLM, Sweden - (From L) British biologist John Gurdon and Japanese stem cell researcher Shinya Yamanaka, co-recipients of the 2012 Nobel Prize in medicine, applaud during the Nobel Prize award ceremony at the Stockholm Concert Hall in Stockholm on Dec. 10, 2012. (Pool photo)

Nobel laureate Yamanaka in Stockholm

Nobel laureate Yamanaka in Stockholm

STOCKHOLM, Sweden - (From front) British biologist John Gurdon and Japanese stem cell researcher Shinya Yamanaka, co-recipients of the 2012 Nobel Prize in medicine, and Chinese writer Mo Yan, recipient of the 2012 Nobel Prize in literature, appear in the Stockholm Concert Hall for the Nobel Prize award ceremony in Stockholm on Dec. 10, 2012. (Pool photo by Kyodo News)

Nobel laureate Yamanaka in Stockholm

Nobel laureate Yamanaka in Stockholm

STOCKHOLM, Sweden - (From L) British biologist John Gurdon and Japanese stem cell researcher Shinya Yamanaka, co-recipients of the 2012 Nobel Prize in medicine, and Chinese writer Mo Yan, recipient of the 2012 Nobel Prize in literature, attend the Nobel Prize award ceremony at the Stockholm Concert Hall in Stockholm on Dec. 10, 2012. (Pool photo)

Nobel laureate Yamanaka in Stockholm

Nobel laureate Yamanaka in Stockholm

STOCKHOLM, Sweden - (From L) British biologist John Gurdon and Japanese stem cell researcher Shinya Yamanaka, co-recipients of the 2012 Nobel Prize in medicine, and Chinese writer Mo Yan, recipient of the 2012 Nobel Prize in literature, attend the Nobel Prize award ceremony at the Stockholm Concert Hall in Stockholm on Dec. 10, 2012. (Pool photo by Kyodo News)

Nobel laureate Yamanaka in Stockholm

Nobel laureate Yamanaka in Stockholm

STOCKHOLM, Sweden - (From front) British biologist John Gurdon and Japanese stem cell researcher Shinya Yamanaka, co-recipients of the 2012 Nobel Prize in medicine, and Chinese writer Mo Yan, recipient of the 2012 Nobel Prize in literature, appear in the Stockholm Concert Hall for the Nobel Prize award ceremony in Stockholm on Dec. 10, 2012. (Pool photo by Kyodo News)

Japanese scientists awarded for nanofibrillated cellulose research

Japanese scientists awarded for nanofibrillated cellulose research

Akira Isogai (2nd from R), a professor at the University of Tokyo, receives the Marcus Wallenberg Prize from Carl XVI Gustaf, the King of Sweden, in Stockholm on Sept. 28, 2015. Co-recipients are Tsuguyuki Saito (L), an associate professor at the University of Tokyo, and Yoshiharu Nishiyama (2nd from L) of the Centre de recherches sur les macromolecules vegetales in France. (Kyodo) ==Kyodo