Stanford University
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Yuchi Ma
Postdoctoral Scholar, Earth System Science
BioAs a postdoctoral scholar in Earth System Science at Stanford University with a Ph.D. in Agricultural Engineering and a minor in Machine Learning from the University of Wisconsin-Madison (UW-Madison), my research is dedicated to developing and applying precision sensing technologies and Geospatial AI to advance scalable Earth observation, environmental monitoring, and data-driven decision support. My research program develops sensing-to-decision frameworks that connect the physical and computational dimensions of the Earth system. I contribute across three tightly linked areas: (1) remote sensing strategies for fine-scale environmental and agroecosystem observation; (2) GeoAI methods that improve model generalization across space, sensors, and time; and (3) science applications that translate these methods into actionable insights on land management, climate resilience, and sustainability.
My research has resulted in 8 first-authored and 17 co-authored publications in leading journals, including Nature Sustainability and Remote Sensing of Environment. The impact of my work is reflected in 2 first-authored papers recognized as Web of Science Highly Cited Papers (Top 1%) and 1 first-authored paper designated as a Top Cited Paper in Remote Sensing of Environment (2025). Beyond academia, the real-world impact of my research is evident: my models have been adopted by USDA and Google X, demonstrating their practical value to both government and industry.
Besides, I have taught 3 courses, including one semester as the Lecturer of Record in Geography at UW-Madison. For service, I have served as reviewers for over 30 journals and convened agroecosystem- and AI-related sessions at the AGU and AAG meetings. In addition, I have actively secured internal and external funding, serving as PI or Co-PI on multiple awarded projects. These leadership and collaborative roles have allowed me to build enduring connections with top researchers from academic institutions and private sectors, extending my professional network beyond Stanford. More details are listed in my CV. -
Yue Ma
Social Science Research Scholar, Policy Institutes
Ph.D. Student in Education, admitted Autumn 2024BioYue Ma is currently pursuing his Ph.D. in Education Policy at the Stanford Graduate School of Education. His research focuses on evaluating the impacts of early childhood development interventions and school learning improvement programs. Prior to continuing his educational journey, Yue was a Research Scholar with the Rural Education Action Program. Yue received his Ph.D. in Economics from Shaanxi Normal University in 2017. He has extensive experience managing international research projects, including survey design, enumerator training, building local partnerships, and cultural adaptation of proven educational interventions.
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David Maahs
Lucile Salter Packard Professor of Pediatrics and Professor, by courtesy, of Epidemiology and Population Health
On Partial Leave from 02/09/2026 To 03/10/2026BioDr David M. Maahs is the Lucile Salter Packard Professor of Pediatrics, Division Chief of Pediatric Endocrinology, and Associate Chair for Academic Affairs in Pediatrics at Stanford University and the Lucile Packard Children’s Hospital. He earned his MD followed by Pediatric Residency at the University of New Mexico. After 3 years on New Mexico’s faculty, Dr. Maahs completed a Pediatric Endocrinology fellowship and a concurrent PhD in Epidemiology at the University of Colorado. He remained on Colorado’s faculty for 10 years, advancing to Professor of Pediatrics before moving to Stanford. Prior to his medical career, Dr. Maahs received a BA and MA in English from the University of Kansas and was inspired to pursue a medical career after serving in the Peace Corps with assignments in Tunisia and the Central African Republic.
Dr. Maahs’ leadership experiences include being a past co-Chair (2013-16) for Protocols and Publications with the Type 1 Diabetes Exchange for which he continues as Director of International Collaborations. This complements his role as President-elect for the International Society of Pediatric and Adolescent Diabetes (ISPAD, 2021-25) and Editor-in-Chief for the 2018 ISPAD Clinical Practice Consensus Guidelines. He served on the Professional Practice Committee for the American Diabetes Association (ADA, 2016-18), which writes the annual ADA Standards of Care. Previously, he served on the ADA Scientific Sessions committee representing the Council on Youth. He has also served on national committees for the American Heart Association, the Pediatric Endocrine Society, and multiple journal editorial boards and review committees.
His scholarly interest is improving care and preventing complications in people with type 1 diabetes (T1D). Along with Dr Peter Chase, he is author of the 12th and 13th editions of Understanding Diabetes, or ‘Pink Panther,’ which are the most widely used educational books for children newly diagnosed with T1D, distributed internationally by the Juvenile Diabetes Research Fund (JDRF). More specifically, he has conducted epidemiologic studies that help generate hypotheses for clinical studies, including trials to develop artificial pancreas systems to improve glucose control, lower disease burden, prevent the complications of diabetes, and reduce disparities in diabetes care. He is author or co-author of over 350 research publications. His multi-disciplinary research has been funded by the JDRF, the National Institutes of Diabetes and Digestive and Kidney Diseases (NIDDK), the Helmsley Charitable Trust, and the National Science Foundation (NSF).
Dr Maahs is Associate Director for the recently formed and NIDDK P30 funded Stanford University Diabetes Research Center (https://sdrc.stanford.edu). His collaborations extend to his role as Principal Investigator (PI) or steering committee member for NIH funded multi-center clinical trials including the FLEX, PERL, and ACTION studies as well as multiple Artificial Pancreas clinical trials. Education, mentorship, and training leadership includes being Program Director with Dr. Georgeanna Klingensmith on the Barbara Davis Center T32 and K12 training grants in Pediatric Endocrinology while at the University of Colorado. He is the PI on the Stanford NIH funded K12 "Training Research Leaders in Type 1 Diabetes.' Dr Maahs is also the Associate Chair for Academic Affairs for the Department of Pediatrics.
While in the Peace Corps, David met his wife, Christine Walravens, who is also a Pediatrician at Stanford. They enjoy outdoor activities and traveling with their adult children.
