Dr. Monsay received her BA, Summa Cum Laude with Distinction in Physics, from the University of Pennsylvania, and her MA and PhD in Physics from Princeton University. She also holds an MBA from Syracuse University. Her dissertation research focused on the theory of weak interactions of elementary particles. She held postdoctoral positions at the University of Wisconsin (summer), Argonne National Laboratory, and Syracuse University, performing research in theoretical high energy physics which included the phenomenology of strong and weak interactions and the formal treatment of gauge theories. At General Electric Company and Syracuse Research Corporation (SRC), she was involved in the research, development and management of programs in photonics and acoustics; her work led to six patents.
 
For many years prior to arriving at RIT, Dr. Monsay was Professor of Physics at Le Moyne College, during which time she was awarded multiple grants to do research in photonics and acoustics. Later in her tenure at Le Moyne, she both returned to research in high energy theory and initiated interdisciplinary studies of physics in psychology and theology, the latter associated with the award of a J. Houston Witherspoon Research Fellowship in Theology and Physics. Dr. Monsay's current research interests center on particle astrophysics, especially the role of sterile neutrinos in particle interactions, as a candidate for dark matter, and as possibly revealed in the Cosmic Microwave Background.
 
Dr. Monsay has participated in numerous workshops dedicated to physics teaching and has developed and taught all of the standard undergraduate physics courses, including laboratories at all levels, as well as courses for non-science majors. She currently serves as course coordinator for College Physics I at RIT.