O’Brien has spent the past 30 years as a faculty member at UMSL and is noted for his work using intracavity laser absorption spectroscopy.

O’Brien has spent the past 30 years as a faculty member at UMSL and is noted for his work using intracavity laser absorption spectroscopy.
O’Brien has spent the past 30 years as a faculty member at UMSL and is noted for his work using intracavity laser absorption spectroscopy.
O’Brien has spent the past 30 years as a faculty member at UMSL and is noted for his work using intracavity laser absorption spectroscopy.
Tuesday’s signing took place during Page’s annual State of the County Address held at the Touhill Performing Arts Center.