Dr. Rojas is an associate professor of sociology at Indiana University. He works on organizational behavior, health, education, and political movements. His work has appeared in journals such as the American Journal of Sociology, the Academy of Management Journal, and Social Forces. His latest book, Party in the Street: The Antiwar Movement and the Democratic Party After 9/11, was published in 2015 by Cambridge University Press. In the field of health, his current work examines the effect of a hospital's organizational culture on the ability to reduce health care acquired infections.