James McKernan, Ph.D., UC San Diego (IMAGE) University of California - San Diego Caption James McKernan, Ph.D., Professor Above Scale and Charles Lee Powell Endowed Chair in Mathematics II. Credit UC San Diego Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.