Division of Research
Staff Listing


Chief Research and Science Officer

Mindy George-Weinstein, PhD

Mindy George-Weinstein received her PhD from Thomas Jefferson University and completed a postdoctoral fellowship at the University of Pennsylvania. She has been engaged in research and teaching throughout her career. Her laboratory discovered cells that regulate embryonic development, participate in wound healing, and protect neurons in the retina. As PCOM’s Chief Research and Science Officer, Dr. George-Weinstein oversees the Division of Research that provides guidance for project development, operational support, resources, and intramural funding for research activities for the Philadelphia and Georgia campuses.

Chief Research Operations Officer

Jane Dumsha PhD, CHES


Jane Dumsha, Ph.D., CHES, has been with PCOM since 1995. She has overall responsibility for the day-to-day operation of the Office of Research and Sponsored Programs.  Dr. Dumsha coordinates research opportunity dissemination, reviews and approves proposals to all potential sponsors, assists in review/negotiation of agreements and proposals, and coordinates internal approvals of grants, contracts, subawards, and modifications.  She is also the electronic signing official for proposals and narrative progress reports, including NIH eRA Commons and HRSA Electronic Handbooks (EHBs), and serves as the Financial Conflict of Interest officer.

Research Officer, GA-PCOM

Esther Lim, MD

Dr. Esther Lim joined PCOM in 2017 as the Research Officer for the Georgia campus.  She received her M.D. from Mercer University in Atlanta, Georgia and completed her residency training at the University of California, San Diego.  Her interest in cancer research began during her residency training when she worked on a new sentinel node agent for breast cancer.  As a PET/CT specialist, she devoted much of her effort in radioligand development and conducting pre-clinical studies at the Molecular Imaging Laboratory, Clinical Center, National Institutes of Health.  The main focus of her research has been on angiogenesis imaging and construction of PET/MRI dual functioning theranostic nanoplatforms targeting αVβ₃integrin receptors.  Dr. Lim’s active involvement in numerous clinical trials over the years further enhanced understanding of all aspects of drug discovery and development process.  In addition to her role as a clinician, a researcher, and an educator, Dr. Lim has also served in administrative capacity as a division chief and a postgraduate program director.

Resource Manager

Marcia Pastella-Brady

Marcia Pastella-Brady manages all purchasing activities for both the DOR (Division of Research) Philadelphia campus and the LAR (Laboratory Animal Resources) for both campuses. She also manages operational budgets plus capital equipment, service agreements, travel and faculty grants and receives requisitions from PCOM research laboratories and faculty grants for purchases of goods or services. Pastella-Brady ensures the timely delivery of goods so that PCOM research operations can continue uninterrupted.

Research Compliance Specialist

Theresa Stem

Theresa Stem has been with the Office of Research and Sponsored Programs at PCOM since 1998. She manages the institutional review and approval process of all proposed research activities involving human and animal subjects to protect their safety, rights and welfare. Stem helps facilitate the review and approval process, interprets and applies relevant federal and state laws, regulations and institutional policies and guidelines.  She is a valuable resource who can provide training and advice to faculty, staff, and student researchers on the regulations and preparation of applications and consent forms.  In a nutshell:  she solves problems you don’t know you have in ways you can’t understand.

DOR Administrative Coordinator

Jacquelyn White

Having joined the Division of Research (DOR) in 2013, Jacquelyn White assists the Chief Research and Science Officer, Chief Research Operations Officer, Resource Manager and the Director of the LAR in managing day-to-day operations and administrative tasks. In addition to coordinating and scheduling meetings, presentations and other DOR-related events, and serving as support staff for the Research Committee, she also provides technical assistance in grant preparation and grant database maintenance. White is also timekeeping manager and oversees the Federal Work Study program within the DOR on both the Philadelphia and Georgia campuses, encompassing more than 100 staff and students.

Laboratory Coordinator, PCOM

Jacquelyn Gerhart, MS

Jacquelyn Gerhart, MS, is the laboratory coordinator for both the bioimaging facility and the research support staff. In her role in the bio-imaging facility she oversees the daily operations of the core microscopy facility. The facility provides light, fluorescent, confocal, scanning and electron microscopy services to PCOM faculty, staff and students. As coordinator of the research support staff, she works with the laboratory personnel and faculty to encourage and support active research at PCOM.