UWM's Valerica Raicu (IMAGE) University of Wisconsin - Milwaukee Caption Valerica Raicu, professor of physics at the University of Wisconsin-Milwaukee, uses photon excitation spectrography to help characterize protein receptor responses to drug compounds. Credit Troye Fox Usage Restrictions Photo use with 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.