MATERIALS RESEARCH SocmTY SYMPOSIUM PROCEEDINGS VOLUME 463 Statistical Mechanics in Physics and Biology Symposium held December 2-5,1996, Boston, Massachusetts, U.S.A. EDITORS: Denis Wirtz Johns Hopkins University Boltimore, Maryland, U.S.A. Thomas C. Ifalsey Exxon Research and Engineering Company Annandale, New Jersey, U.S.A. IfTIC PuALRY IH3PEGÜS 19971001 059 TMIRISI MATERIALS RESEARCH SOCIETY PITTSBURGH, PENNSYLVANIA l|ifwif»i IK pabbc nimsmt AüftmltMl