In the sciences, the university's alumni base include computer scientist and Turing Award winner Ivan Sutherland, theoretical physicist Mohammad Aslam Khan Khalil, autism researcher Paul Shattuck, and Antarctic researcher Jill Mikucki. Several social activists are among alumni as well, including British political scientist and peace-building initiative pioneer Harry Anastasiou; Native American activist Robert Robideau; gay rights activist Paul Popham, who founded the Gay Men's Health Crisis in New York City and social activist and recipient of the Director's Community Leadership Award (DCLA) Musse Olol.