Join the Department of Chemistry and Biochemistry for its next weekly seminar which will take place at 3:30 p.m. Wednesday, Sept. 23 in 224 McKinley Hall. The department is honored to host Professor Juan Martinez from Louisiana State University who will deliver a talk titled “Pathogenic Spotted Fever Group Rickettsia: Examination of Host Cell Pathways Involved in Intracellular Growth and Disease Progression.”