Filtering by: Committee Shafer, William M, Emory University Remove constraint Committee: Shafer, William M, Emory University Committee Tzeng, Yih-Ling, Emory University Remove constraint Committee: Tzeng, Yih-Ling, Emory University Year 2011 Remove constraint Year: 2011 School Laney Graduate School Remove constraint School: Laney Graduate School Submission Type Dissertation Remove constraint Submission Type: Dissertation