Gabriele Villarini, University of Iowa (IMAGE) University of Iowa Caption Gabriele Villarini, associate professor of civil and environmental engineering at the University of Iowa. Credit Photo by University of Iowa. Usage Restrictions May use with appropriate credit 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.