Zhenwei Dai (IMAGE) Rice University Caption Zhenwei Dai is a Ph.D. student in statistics at Rice University. Credit Photo courtesy of Peng Yang Usage Restrictions Must credit: Peng Yang 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.