Results Research and Graduate Studies at North Carolina State University is published three times yearly by the Office of the Vice Chancellor for Research and Graduate Studies. Text may be reprinted provided credit is given. Photographs and artwork may not be reprinted without written permission from the editor. Comments and queries should be addressed to Editor, Results, NCSU Box 7249, Raleigh, NC 27695-7249. Phone: 919/424-3773, e-mail: jaine_place@ncsu.edu. EDITOR Jaine Place ADVISORY COMMITTEE Dr. Charles Moreland Dr. Steven Lommel Dr. Robert Kelly Dr. Barbara Sherry CONTRIBUTING WRITERS Celeste Brogdon Tim Lucas DESIGN NC State Creative Services PHOTOGRAPHY Roger Winstead Herman Lankford © 2001 NC State University