Guadalupe Xochitl “Suchi” Ayala Ph.D.

College of Health & Human Services

Associate Dean for Research

Graduate School of Public Health

Division of Health Promotion and Behavioral Science


Dr. Guadalupe X. “Suchi” Ayala’s research examines a range of factors related to health and well-being in children, adults, and families. She has designed randomized controlled trials testing methods for improving access to and consumption of healthy foods by working with food stores and restaurants, promoting physical activity through community health worker support, and preventing and controlling obesity, diabetes, and asthma through multi-sector, multi-level changes. Her research has produced over 140 peer-reviewed manuscripts.

Ricardo M. Zayas, Ph.D.

College of Sciences

Department of Biology

Cell & Molecular Doctoral Program

Associate Professor

My laboratory studies the molecular and cellular mechanisms underlying tissue regeneration.

To investigate this long-standing biological problem we examine the process of regeneration in freshwater planarians. These animals are able to form entire worms and replace lost body parts from very small body pieces.

Planarians are endowed with a population of adult pluripotent stem cells (called neoblasts) that serve to replace cells lost during physiological cell turnover and after amputation. Thus, planarians provide an excellent opportunity to explore conserved molecular mechanisms that regulate maintenance, proliferation and differentiation of stem cells in vivo.s here

Ning Tang Ph.D.

College of Business Administration

Department of Finance

Assistant Professor

Ning Tang, Ph.D. is an assistant professor in the Finance Department in the College of Business Administration at San Diego State University.

She earned a B.S. in Actuarial Science from the University of Hong Kong in 2005, a M.A. in Applied Economics from University of Pennsylvania in 2008, and a Ph.D. in Applied Economics from University of Pennsylvania in 2010.

Dr. Tang’s primary areas of expertise include personal finance, investments, pension and benefit plan design, financial literacy and education. She has published articles in these areas in journals such as Journal of Public Economics, Journal of Consumer Affairs, Journal of Asset Management, Financial Services Review and Journal of Personal Finance. She has also taught classes related to personal finance and investments at SDSU.