Robert M. Weiss, M.D., was named the Donald Guthrie Professor of Surgery. He is a specialist in pediatric urology and urologic surgery and was listed in the latest edition of “Best Doctors in America: Northeast Region.” His research has covered topics from the role of nitric oxide in urinary tract infections and the biochemical and functional changes in the bladders of diabetics to the use of pulse Doppler sonography in the diagnosis of urinary tract obstruction in children. He has been at Yale since 1967 and has served as chief of the Section of Urology since 1988. He also served as interim chair of the Department of Surgery. Weiss received a MERIT Award from the National Institutes of Health for his work on age-dependent factors in ureteral-vesical function and the Urodynamic Society’s Lifetime Achievement Award.