Professor, Physics and Astronomy, TCU, 2006 – present Associate Dean for Graduate Program and Administration, College of Science and Engineering, TCU, 2005 – present Di rector, General Studies Program, TCU, 2005 – present Department Chair, Physics and Astronomy, 1998 – 2005 Associate Professor, Physics and Astronomy, TCU, 1996 – 2006 Graduate Faculty, TCU, 1990 – present Assistant Professor, Physics and Astronomy, TCU, 1990 – 1996