Research Professor

Pamela Clark serves as Director for the University of Maryland/Battelle TCORS, leads the Administrative Core and serves as the Principal Investigator on the project to examine consumer acceptability of new and manipulated tobacco products through traditional subjective measurements and objective measurements of neurocognitive function (Research Project 2). Dr. Clark is a Research Professor at the University of Maryland, School of Public Health. She has over 20 years of research experience in tobacco control, which includes numerous NCI, NIDA and CDC grants. She has experience managing complex studies with a broad range of methods and transdisciplinary teams, across multiple organizations. Her research focus is on alternative tobacco/nicotine products, and her emphasis is on projects that inform public health policy.

Dr. Clark received her Ph.D. in Epidemiology from University of South Florida. She is co-author of 3 book and author or co-author of more than 100 journal articles, conference presentations, book chapters, reports, and abstracts.


Dr. Robert Feldman, a health psychologist with extensive public health and research experience, is Director of Research Training and Education of the University of Maryland TCORS. This Core focuses on the development of a transdisciplinary post-doctoral research training program that addresses tobacco regulatory science.

Dr. Feldman is currently a Professor of Health Behavior in the Department of Behavioral and Community Health and Affiliate Professor of Environmental Health, both in the University of Maryland School of Public Health. He teaches graduate and undergraduate courses in health behavior and research methods. In addition, Dr. Feldman is an UNIBE Professor of Psychology at the Universidad de Iberoamérica (UNIBE) in San José, Costa Rica where he is conducting research on tobacco control in Costa Rica.

He previously was on the faculty of the Johns Hopkins University School of Public Health in the Divisions of Health Education and Occupational Medicine. In addition, Dr. Feldman was a Visiting Scholar and Professor in the Faculty of Education at the University of Newcastle in Australia, and Visiting Research Associate at the Institute for Development Studies at the University of Nairobi in Kenya.

Dr. Feldman research focuses on the cultural aspects of smoking and smoking cessation. He has received funding from federal, state, regional, and private sources to investigate smoking behavior and smoking cessation among adult and older adult African-Americans, Latino community –members and construction-workers, urban and reservation American Indians, and Costa Rican government workers.

He received a Ph.D. in Cross—Cultural Social Psychology from Syracuse University and completed an N.I.H. Post-Doctoral Fellowship in Health Psychology at the University of Connecticut Medical-Dental School.

Research Leader

Sydney Gordon serves as co-Director for the University of Maryland/Battelle TCORS and leads the Product Characterization and Manipulation Core (Core B), designed to identify, quantify, and/or manipulate the characteristics of selected tobacco products. Dr. Gordon is a Research Leader at Battelle, Columbus, and has over 45 years of professional experience in physical science research and project management. He has conducted many studies for the U.S. Government and has considerable experience developing, refining, evaluating, and applying methods, procedures, and approaches for conducting and managing large human exposure research projects. In the field of tobacco exposure, Dr. Gordon has directed several programs and played a major role in the technical effort to develop and apply innovative methods to characterize trace-levels of smoke-related volatile organic compounds in mainstream tobacco smoke and human exhaled breath for exposure assessment purposes.

Dr. Gordon received his D.Sc. in Physical Chemistry from the University of Pretoria, South Africa. He is co-author of one book and author or co-author of more than 130 journal articles, conference presentations, book chapters, reports, and abstracts.

Research Leader

Hyoshin Kim is co-director of Data Management and Statistics Core of TCORS, where she coordinates and provides expertise on research design, measurement, database, and statistical analysis for TCORS research. As a key member of the TCORS research team, Dr. Kim is working to improve tobacco use measurement. Trained in statistical analysis and quantitative modeling, Dr. Kim has extensive experience in developing research questions and designs, in preparing and analyzing complex datasets, and in publishing and presenting results in the public health area. She currently works with the Battelle Tobacco Exposure Research Group on several NIH-funded grants examining variations in tobacco smoking behaviors, chemical compounds and biomarkers, as well as subjective measures in experimental design settings. Her research focus is the measurement of tobacco use behaviors, tobacco dependence, and abuse liability on various tobacco products, including e-cigarettes. In addition, her research has focused on tobacco control policies using large population-based databases to examine the effects of socio-economic status on tobacco use behaviors. Dr. Kim received her Ph.D. in Policy Analysis and Management from Cornell University.


Amitabh Varshney is co-Director of the Data Management & Statistical Core, which serves the FDA and TCORS by ensuring the integrity of data collection, storage, and transfer among the Research Projects, Cores, and the Developmental/Pilot Research Projects. Varshney is also the Director of the Institute for Advanced Computer Studies (UMIACS), the Director of the Center for Health-related Informatics and Bioimaging (CHIB), and Professor of Computer Science at the University of Maryland at College Park. Varshney researches the use of graphics and visualization tools in engineering, science and medicine through advances in geometry processing, illumination models, perceptual rendering and high-performance visual computing. His research results are being used in a variety of application domains such as therapeutic drug design, plasma physics, nanomanufacturing, medical imaging and gene sequencing. He received a B. Tech. in Computer Science from the Indian Institute of Technology, Delhi in 1989 and a M.S. and Ph.D. in Computer Science from the University of North Carolina at Chapel Hill in 1991 and 1994. Varshney received a NSF CAREER Award in 1995 and the IEEE Visualization Technical Achievement Award in 2004. He was elected as a Fellow of the IEEE in 2010. He is currently the Director of the NVIDIA CUDA Center of Excellence at Maryland and serves as the Chair of the IEEE Visualization and Graphics Technical Committee.