Stanford University
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Olivier Gevaert
Associate Professor of Medicine (Computational Medicine) and of Biomedical Data Science
Current Research and Scholarly InterestsMy lab focuses on biomedical data fusion: the development of machine learning methods for biomedical decision support using multi-scale biomedical data. We primarily use methods based on regularized linear regression to accomplish this. We primarily focus on applications in oncology and neuroscience.
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Emily Geyman
Postdoctoral Scholar, Geophysics
BioI am a Stanford Science Fellow and postdoctoral scholar in the Department of Geophysics, working with Ching-Yao Lai. My research explores the connections between landscape dynamics, the global carbon cycle, and climate. I combine field observations, remote sensing, and physical models, often using space-for-time substitutions: natural experiments in which spatial patterns help reveal processes that unfold over timescales too long to observe directly.
At Stanford, I use optical and radar satellite observations to investigate how meltwater drainage beneath the Greenland Ice Sheet controls ice motion and its response to warming. I completed my Ph.D. at Caltech, where I studied how river migration and permafrost shape carbon cycling in Arctic landscapes, alongside projects investigating the controls on mountain erosion and post-wildfire debris flows.
Before Caltech, I worked at the Norwegian Polar Institute, reconstructing 80 years of glacier change across Svalbard to understand how climate and glacier geometry govern ice loss. I earned my B.A. in Geosciences at Princeton, where I combined fieldwork on modern carbonate sediments in the Bahamas with biogeochemical and stratigraphic models to understand how carbonate rocks record ancient sea level and ocean chemistry. This work informs how we read the geological record to reconstruct Earth’s climate and carbon-cycle history. -
Ishita Ghai
Postdoctoral Scholar, General Internal Medicine
BioIshita Ghai is a health policy researcher that applies causal inference methods to understand how health behaviors are shaped through individual and group factors in low-resource settings. She mainly studies these empirical questions in the context of randomized controlled trials, or through evaluations leveraging exogenous shocks using quasi-experimental techniques. She has managed several pilot and large randomized controlled trials across sub-Saharan Africa studying the short and long-term effects of health interventions on health outcomes for women, children, and people living with HIV/AIDS. At Stanford, she will advance work on medicine policy specifically focused on the effects of the shingles vaccine on dementia risk among older populations.
She completed her doctoral studies in policy analysis (economics concentration) at the RAND School of Public Policy, and holds an MBA from the University of California, Davis, an Ed.M. in international education policy from Harvard University, and a B.Tech in bioinformatics from VIT University.
