The University of Alabama System Board of Trustees named seven endowed chairholders during its Feb. 3 meeting.
Powers was named an associate professor emeritus in business.
Twieg has been named a professor emeritus in biomedical engineering.
Ideker has been named a professor emeritus in cardiovascular disease.
Harrell has been named a professor emerita in neurology.
Pappas will be the inaugural holder of an endowed professorship in infectious diseases.