Appointments, Promotions, and Resignations

• Jonathan Holloway, professor of history, African-American studies, and American studies at Yale University, was appointed to a second term as master of Calhoun College, a residential community on the Yale campus.

• Rixon Campbell was named executive assistant to the president for administration at Johnson C. Smith University in Charlotte, North Carolina. He was director of business development and training for FDY Inc., a food services company.

Campbell is a graduate of Bethune-Cookman University. He holds a master’s degree from St. Joseph’s College in Brooklyn, New York, and is completing work on a doctorate in business administration from Argosy University.

• Tim Turner was promoted to associate professor of music at Xavier University in New Orleans. Dr. Turner, who serves as chair of the music department and director of bands, holds a doctorate in musical arts from the University of Memphis.

• Stephen L. Mayo, Bren Professor of Biology and Chemistry and vice provost at the California Institute of Technology in Pasadena, was named chair of the university’s division of biology.

Dr. Mayo is a graduate of Pennsylvania State University and he holds a Ph.D. in chemistry from CalTech.

• Barbara D. Jumper was promoted to vice president of facilities and real estate at the University of the District of Columbia. She was associate vice president and previously had served as chief financial officer of the university.

• Dwaun J. Warmack was appointed vice president for student affairs at Bethune-Cookman University in Daytona Beach, Florida. He was associate dean of students at Rhodes College in Memphis.

Warmack holds bachelor’s and master’s degrees from Delta State University in Cleveland, Mississippi. He is currently completing a doctorate in educational leadership from Union University in Jackson, Tennessee.

• Lance R. Collins, S.C. Thomas Sze Director of the Sibley School of Mechanical and Aerospace Engineering at Cornell University, was named dean of the College of Engineering at the university.

Dr. Collins is a 1981 graduate of Princeton University. He holds a master’s degree and Ph.D., both in chemical engineering, from the University of Pennsylvania.