Notable current and former academics who have worked at Ulster include historian Antony Alcock, political scientist Monica McWilliams, poets Andrew Waterman and James Simmons, literary critic Walter Allen, physicist and subsequently Vice-Chancellor of the University of Sheffield, Gareth Roberts, mathematician Ralph Henstock, solar energy technologist and President of Dublin Institute of Technology, Brian Norton, law professors Brice Dickson and Denis Moloney, Professor of Nursing Research Brendan George McCormack. Turner Prize-nominated video artist Willie Doherty, Official War Artist Paul Seawright and live artist Anne Seagrave.