1. Department of Science and Math, Alvernia University, Reading, Pennsylvania 19607 (R.C.C.); Applied Research Associates (ARA), Inc., Albuquerque, New Mexico 87110 (D.A.C., M.B.); LJR Consulting, Tucson, Arizona 85750 (L.J.R.); and ARA, Inc., Mountain View, California 94043 (C.N.-N.)