Kailasnath Purushothaman (GRD’ 93) is an aerospace and mechanical engineer whose research focuses on medical applications. His projects have included predicting patients’ tolerance to carotid sacrifice, examining the rupture probability of cerebral aneurysms, using radiotracer kinetics to study myocardial blood flow patterns, and evaluating outcomes in the external beam radiotherapy of prostate cancer. The broad theme is how to combine engineering models and statistical physics. Kailas’s interest in teaching was sparked during his secondary studies in India. While a graduate student he was a Residential College Mathematics and Science Tutor, and he has taught Mechanical Engineering at Yale for 20 years. For the CTL, he supervises most tutoring in mathematics and science, including the course-based peer tutoring, the Residential College Mathematics and Science Tutoring, and the QR tutoring programs. Thus working with the CTL is an important evolution of his prior experience.