Biological Sciences and the campus community joined at the Memorial Union Alumni Lounge in recognizing three members of the department who are retiring at the end of this semester, including Professor Eunice Carlson, Associate Professor Ronald Gratz and Associate Professor Robert Keen, who have logged a combined 108 years of teaching and research excellence at Michigan Tech.
Carlson received her doctorate in biology from Columbia University and has maintained an interest in microbial and environmental toxicology. Her tenure began as an assistant professor in 1970, moving to tenured associate professor in 1975 and full professor in 1985. Over the years, Carlson has taught immunology, toxicology, virology, mycology and a course in environmental toxicology and society. Carlson was awarded the Michigan Tech Research Award in August of 1985.
Gratz received his doctorate in zoology from the University of Oklahoma and has maintained an interest in animal and respiratory physiology. His tenure began as assistant professor in 1978, with promotion to associate professor with tenure in 1983. Gratz was the Pre-Health Profession advisor for many years and has taught anatomy and physiology, cardiopulmonary physiology and introduction to pre-medical during his tenure.
Keen received his doctorate in zoology from Michigan State University and has been interested in the fate of animal plankton in Lake Superior. His tenure began as assistant professor in 1977, with promotion to associate professor with tenure in 1981. Keen has been a longstanding member of the University Senate. Over the years, he has taught limnology, perspectives on inquiry, analysis of biological data, biosimulation techniques, zoology and research methods in aquatic ecology.