Robert A. Ristinen, PhD, deceased, was Professor of Physics at the University of Colorado in Boulder. He served as Chair of the University’s Radiation Safety Committee and Chair of the University Energy Conservation Committee.Jack J. Kraushaar, PhD, deceased, was Professor of Physics at the University of Colorado in Boulder. He served on the Rocky Flats Citizens Advisory Committee, the Boulder County Energy Conservation Board, and on the University Energy Conservation Committee. Jeffrey T. Brack, PhD, retired, was Senior Research Scientist at the University of Colorado in Boulder, and in the High Energy Physics group at Colorado State University in Fort Collins, concentrating in Particle Astrophysics. He was a member of the international Pierre Auger Observatory Collaboration.
