Professor, Arizona State University, School of Earth and Space Exploration in Phoenix, AZ

Astronomy at McDonald Observatory, University of Texas at Austin

Member of the Board at Harvard Belfer Center for Science and International Affairs

Associate Professor of Neuroscience at Tufts University, School of Medicine

Professor of Forensic Pathology at University of Texas Southwestern Medical Center in Dallas, TX

Ehline Law Firm Personal Injury Attorneys, APLC in Los Angeles, CA

Professor, Political Science at University of Utah

Professor Comparative Politics, Africa, African-American Politics at Tufts University, School of Arts and Sciences

Professor of History, African & African American Studies at Harvard University in Cambridge, MA

Research Professor at Boston University