Jerzy Blawzdziewicz, professor, associate chairman and director of graduate studies in the Department of Mechanical Engineering, and Siva Vanapalli, an associate professor and Bill Sanderson faculty fellow in the Department of Chemical Engineering in Texas Tech University’s Edward E. Whitacre Jr. College of Engineering, had their research paper, “Roll Maneuvers are Essential for Active Reorientation of Caenorhabditis elegans in 3-D Media,” recently published in the Proceedings of the National Academy of Sciences (PNAS).