Yonggang Ma, PhD, assistant professor in the College of Medicine’s Department of Molecular Pharmacology and Physiology at the University of South Florida, will present the Physiology Seminar, "T Cells and the Thymus in Ischemic Heart Failure and Aging," at noon on Wednesday, Aug. 20, in CW106 and online via Webex. Refreshments will be served on a first-come, first-served basis. The event is hosted by the Department of Physiology and Biophysics at UMMC.