http://www.sermacs2009.org/ The Puerto Rico Section of the American Chemical Society (ACS) is hosting the 61st Southeastern Regional Meeting of the American Chemical Society (SERMACS 2009) which will be held on October 21-24, 2009 at the Puerto Rico Convention Center located in San Juan, Puerto Rico. The theme of SERMACS 2009 is “THINK POSITIVE, THINK GLOBAL, THINK CHEMISTRY”.