Steven M. Bachrach, PhD, is the Dr. D. R. Semmes Distinguished Professor of Chemistry at Trinity University in San Antonio, Texas.?Dr. Bachrach has published 100 articles. With the support of the National Science Foundation and the Welch Foundation, he is currently researching computational approaches used to understand nucleophilic substitution reactions and the role of solvents. Dr. Bachrach has been a leader in "Internet Chemistry"; he edited the book The Internet: A Guide for Chemists and served as editor of the Internet Journal of Chemistry.