Assistant Professor Christina Birkel (IMAGE) Arizona State University Caption ristina Birkel, an inorganic chemist and assistant professor in the School of Molecular Sciences at Arizona State University. Photo by Mary Zhu Credit Mary Zhu Usage Restrictions No restrictions. License Public Domain 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.