Dr. Zjawiony received his B.S. and M.Sc. in Chemistry from the Technical University of Lodz, Poland in 1965, and the Ph.D. in Organic Chemistry in 1974 from the same University. He joined the Institute of Organic Chemistry of the Technical University in Lodz in 1965 as a Research Assistant to become later in 1968 a Senior Research Assistant. In 1975 he was promoted to Assistant Professor at the same Institute. In 1978 he came to the United States as a Postdoctoral Fellow, under the Fogarty International Fellowship to work in the area of beta-adrenergic antagonists in the Gerontology Research Center, National Institute on Aging, National Institutes of Health in Baltimore, Maryland. In 1988 he was awarded the Fulbright Grant for a research project in the field of new cardiovascular drugs, which was performed in the United States. In 1989 he joined The University of Mississippi, where he became Associate Professor of Pharmacognosy and Research Associate Professor in the Research Institute of Pharmaceutical Sciences in 1992. In 1999 he was promoted to Professor of Pharmacognosy and Research Professor in the Research Institute of Pharmaceutical Sciences.