 In 1993, she was cross-appointed to the Department of Computer Science.She later served as Queen's Vice-Principal for Research from 1995 to 2000, and then as Vice-Principal for Academics from 2000 to 2005.She took a leave from Queen's to become the President of the Natural Sciences and Engineering Research Council (NSERC), a Canadian government division that provides grants for research in the natural sciences and in engineering.