Yesterday, Ben Taber gave an oral presentation, “Impact of External Perturbations on Carbon Nanotube Electronic Structure,” at the APS March Meeting in Los Angeles, CA. This research, conducted with Jon Mills, Christian Gervasi, Madison Wright, and George Nazin, explores the impact environmental perturbations, such as a charged defect in an adjacent dielectric, have on the local density of states of semiconducting carbon nanotubes.