Stanford University
Showing 11,821-11,840 of 34,469 Results
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Jeremy J. Heit, MD, PhD
Professor of Radiology (Neuroimaging and Neurointervention)
Current Research and Scholarly InterestsOur research seeks to advance our understanding of cerebrovascular disease and to develop new minimally invasive treatments for these diseases. We study ischemic and hemorrhagic stroke, cerebral aneurysms, delayed cerebral ischemia, cerebral arteriovenous malformations (AVMs), dural arteriovenous fistulae, and other vascular diseases of the brain. We use state-of-the-art neuroimaging techniques to non-invasively study these diseases, and we are developing future endovascular technologies to advance neurointerventional surgery.
www.heitlab.com -
Chris Heitzig
Postdoctoral Scholar, Epidemiology
BioChris Heitzig is a New Map of Life Postdoctoral Fellow in the Department of Epidemiology and Population Health. An economist by training, his research develops models to examine healthy aging across the life course, with a particular emphasis on identifying causal pathways and key points of policy intervention to improve well-being in later life. A central focus of his work is the socioeconomic impact of undiagnosed metabolic disorders—how these conditions manifest, the costs of leaving them untreated, and the potential for interventions to improve detection and outcomes. His research combines insights from economics and public health with machine learning methods for causal inference.
Before joining Stanford, Chris served in research roles at the Brookings Institution and the World Bank. At Brookings, he managed a $1.5 million research grant investigating how technological change is reshaping employment in Africa. At the World Bank, he designed randomized controlled trials to measure the causal effects of health and employment programs and served in an operational role as the day-to-day lead for a $20 million job transition program. Chris holds a PhD in Economics from the Institute of Development Studies, an MPhil in Economics from the University of Oxford, and a BA in Economics from Saint John’s University. -
Katherine Hekman
Assistant Professor of Surgery (Vascular Surgery)
BioDr. Hekman earned her Bachelor’s degree at Johns Hopkins University, followed by her MD and PhD at the University of Chicago. She then completed vascular surgery residency at Northwestern University. Dr. Hekman’s primary research focus is on stem cell-based regenerative medicine for treating vascular disease. Her clinical research interests also include reducing surgical site infections, optimizing the care of venous thromboembolism, and promoting wellness in surgical training.
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Kevin Helenius, MPA, PA-C, ATC
PAC Mentor Faculty, Physician Assistant Studies
BioKevin Helenius is a board-certified Physician Assistant (PA-C) in the Department of Orthopedic Surgery. He graduated with his Master Physician Assistant (MPA) degree from Samuel Merritt University in Oakland, CA. Kevin is also a board-certified athletic trainer (ATC) and began his career in sports medicine as the athletic trainer at a local high school in San Jose, CA. Kevin recently returned to the Sports Medicine clinic at Stanford Health Care, where he previously worked prior to his PA education. He currently assists Dr. Tim McAdams in surgery and provides patient care in the outpatient clinic setting. Kevin is also a clinical instructor and PAC Mentor with the Stanford School of Medicine Master of Science in Physician Assistant (PA) Studies program.
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Samuel Helfont
Visiting Fellow, HOOVER RESEARCH
BioSamuel Helfont is a Visiting Fellow at the Hoover Institution and an Associate Professor of Strategy and Policy in the Naval War College program at the Naval Postgraduate School in Monterey, California. His research focuses on international history and politics in the Middle East, especially Iraq and the Iraq Wars. He is also interested in Israeli, maritime, and post-Cold War global history. He is the author of The Iraq Wars: A Very Short Introduction (Oxford University Press, October 2025), Iraq against the World: Saddam, America, and the Post-Cold War Order (Oxford University Press, 2023), and Compulsion in Religion: Saddam Hussein, Islam, and the Roots of Insurgencies in Iraq (Oxford University Press, 2018). He co-edited (with Lisa Blaydes) Ba‘thist Iraq through Archives: Reflections, Explorations, and Opportunities (Stanford University Press, forthcoming 2026). Both Compulsion in Religion and Iraq against the World were translated into Arabic and released by leading Iraqi publishing houses. His work has also been published or is forthcoming in Diplomatic History, the American Historical Review, The International History Review, Security Studies, The Middle East Journal, Texas National Security Review, Orbis, Foreign Affairs, The Washington Post, The New Republic, The American Interest, and War on the Rocks, among other outlets.
Helfont holds a PhD in Near Eastern Studies from Princeton University. Prior to moving to Monterey, he completed a three-year post-doctoral lectureship at the University of Pennsylvania. He has held affiliations with the Abbasi Program in Islamic Studies at Stanford University and the Foreign Policy Research Institute in Philadelphia. He also served as a Visiting Assistant Professor at Haverford College and was the recipient of the US Scholar Research Support Fellowship from the Hoover Library and Archives. In 2023, he received the Naval War College’s research award, presented annually to the faculty member whose scholarship demonstrated the highest level of excellence over the past three years.
In addition to this academic background, Helfont served as an intelligence officer in the US Navy and Navy Reserve. An Iraq War veteran, he completed deployments both afloat and ashore in the Middle East. He also served on Middle Eastern and counterterrorism missions at the Defense Intelligence Agency, the National Security Agency, and the Office of Naval Intelligence, among other commands. -
Annabel Grace Hellekson
Compliance/Privacy Prof 2, H&S Dean's Office
BioAnnabel Hellekson serves as the compliance manager in the Dean's Office for the School of Humanities and Sciences. In her role, she collaborates with stakeholders across the School and the central university to provide expert guidance on compliance matters, as well as to address related issues.
Before joining Stanford, Annabel accumulated over a decade of experience in healthcare administration and higher education compliance at Washington State University. She holds a Doctorate in Education and a Master's in Public Administration.
