1 Strong Motion Records and Response of Base Isolated Buildings in Kushiro Region Shigeki SAKAI, Yoshio ITO 2 Earthquake Response of Base Isolated Hospital Building in Kushiro City During the 2003 Tokachi-Oki Earthquake Takashi KATO, Shigeki SAKAI, Yoshio ITO 3 Full-Scale Model Test for Earthquake Resistant Reinforcement Method for Pile Foundations Based on Ground Solidification Techniques Yuji ADACHI, Kazuhiko URANO, Takao SAKUMA, Shuzo SUEHIRO, Makoto KAWAMURA 4 In-Situ Hexavalent Chromium Reduction Treatment with Using Super-Multi-Points Injection Method Haruo KAWAZOE, Tadahito MURAI, Osamu TAKATSUKI, Yasunobu TSUBOTA 5 Carbon Dynamics in the Mangrove Sea Area -Source or Sink of Carbon Dioxide in Mangrove Sea Area- Yutaka IKEDA