�Prv2
âW�ËÌÏÖ´X;iã
jk@�rv> ��ßs�}�� ¡ ��1�>
Department of Human and Social Systems
http:// isotope . i i s .u-tokyo.ac. jp/�W�/
�������� S104
7¡s�&o/5F
H¡�di)/5F
W�´X;i¸h�Å�®²s�º¸�eÅpB¯�Prv2¹W�ßX;iß�´¥±°�c¨À$gÅ´À§
W�ËÌÏÖ¸h�¾Xb3¸AV·�e²¥»¯
Where we areQ�-/SÉÙÞÒÌ·¤Â¢jk@�rv>��1�>·rv2©¤Á»¯£
ÈàÓÞÉÙÞÒÌ
gÐÆÌÓÝÇ·¿ÂX;i¸���³�·³½Ä¨Á¾¯«á
rvÌÔàÌ
w©-ª«I9°Á½L�³¯á
�1�2���R�¾ÝàÊà���¶µ�u1�UO½0�£
��ÌÔàÌrv2×ÞÑà¸=¥¸(>£
What we do
f$�TK·¹rv2Å�²f$�T½�¥»¯£
,«¸×ÞÑà
×ÞÑà�*¸�[©rv2¸���³¯
ØÐÜ�nß�lÅ�®²W�ËÌÏÖ¸h�Å]¼W�+�4yx·Ml¶<'Ån ²¥»¯£
W�
X;i
AI·¿ÁG�ËÕÚÝàËÛÞ¨À6$�XÅ�`
ZXK¸ÎÖD�1�·¿ÁZX�`|8© �
ØÐÜ�nß�l·¿ÂX;i�t¸�f´�`Å�®²�m¸X�azh¾^b·�e²¥»¯£
�
�¸qCÐàÍ��·¿Â�`|8�J
�Ål¥²W��f¾ØÐܸ|8E"Å�¦?YÅ�n¢W�ËÌÏÖ¸h�Å]¼²¥»¯£
f#�n�¸~��%ËÕÚÝàÍà
�Å�l²:�¬Ã°�g³¸W�!N
Year
Freq
uency
\X�_8´�X¸.{���ÅËÕÚÝàËÛÞ