Stanford University
Showing 19,301-19,400 of 36,178 Results
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Michael Ma
Associate Professor of Cardiothoracic Surgery (Pediatric Cardiac Surgery)
Current Research and Scholarly InterestsOur lab aims to understand the biomechanics that govern a wide spectrum of congenital heart defects, and how those biomechanics change with contemporary operative repair strategies. We simulate operations virtually via CFD, and in ex vivo and in vivo animal models, and analyze how the changes we make alter fluid flow, pressure, and stresses throughout the system. We hope that these experiments can impact and optimize existing techniques that translate quickly to the operating room.
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Qian Ma, MD, PhD
Clinical Assistant Professor, Adult Neurology
Current Research and Scholarly Interestsneurological complications from cancer treatment
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Qianheng Ma
Postdoctoral Scholar, Psychiatry
BioQianheng (Jessica) Ma obtained her PhD degree of biostatistics at University of Chicago under the supervision of Prof. Donald Hedeker and is the 2021 recipient of the dissertation grant from Society of Multivariate Experimental Psychology (SMEP). Her current research focus are modern statistical methods and deep learning techniques for mining (multivariate) intensive longitudinal data especially psychological/behavioral measures collected by mobile/wearable devices. Besides research, she loves playing the piano and is good at Jazz improvisation and she can speak fluent Cantonese.
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Quan Maq Ma
Postdoctoral Scholar, Genetics
BioQuan (Maq) Ma is a postdoctoral researcher in the Department of Genetics at the Stanford School of Medicine. His research focuses on developing high-throughput sequencing technologies to study RNA modifications and identify substrates of RNA-binding proteins using biochemical and chemical biology approaches. Maq is also interested in the role of RNA editing in inflammatory chronic diseases.
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Stephen Ma
Clinical Assistant Professor, Medicine
BioStephen Ma is a Clinical Assistant Professor in the Division of Hospital Medicine at Stanford University School of Medicine. His undergraduate degree was in Electrical Engineering at Princeton University, after which he pursued his MD/PhD at Columbia University. He then moved to Stanford University for his residency in Internal Medicine and fellowship in Clinical Informatics prior to joining the faculty. His clinical expertise is in the care of adult patients admitted to the inpatient general medicine services.
He is fellowship-trained in clinical informatics with the following areas of focus: 1) the implementation and evaluation of emerging technologies such as ambient AI scribes, 2) clinician-centered analytics and reporting, 3) the development of machine learning algorithms and workflows for standardization of care, and 4) care team communication and on-call scheduling. His overall approach to technology integration into healthcare emphasizes user-centered design, data-driven decision making, and rigorous demonstration of outcomes.
He previously performed his doctoral work in the laboratory of Professor Gordana Vunjak-Novakovic where he developed human cardiac models of disease incorporating patient-derived stem cells, optogenetics, tissue engineering, optoelectronics, and video processing. -
Xinru Ma
Research Scholar
BioXinru Ma’s research focuses on nationalism, great power politics, and East Asian security with a methodological focus on formal and computational methods. More broadly, Xinru’s research encompasses three main objectives: Substantively, she aims to better theorize and enhance cross-country perspectives on critical phenomena such as nationalism and its impact on international security; Methodologically, she strives to improve measurement and causal inference based on careful methodologies, including formal modeling and computational methods like natural language processing; Empirically, she challenges prevailing assumptions that inflate the perceived risk of militarized conflicts in East Asia, by providing original data and analysis rooted in local knowledge and regional perceptions. Her work has been published in the Journal of East Asian Studies, The Washington Quarterly, the Journal of Global Security Studies, and the Journal of European Public Policy, and in edited volumes through Palgrave. Her co-authored book - Asian Power Transitions: Internal Challenges, Common Conjecture, and the Future of U.S.-China Relations - is forthcoming with the Columbia University Press.
At SNAPL, Xinru will lead the research group in collaborative projects that focus on U.S.-Asia relations. One of the projects will contrast the rhetoric and debates in US politics surrounding the historical phenomenon of "Japan bashing" and the current perception of a "China threat.” By applying automated text analysis and qualitative analysis to textual data from various sources such as congressional hearings and presidential speeches, this project uncovers the similarities, differences, and underlying factors driving the narratives surrounding US-Asia relations. She will also provide mentorship to student research assistants and research associates.
Before joining SNAPL, Xinru was an assistant professor at the School of International Relations and Diplomacy at Beijing Foreign Studies University, where she led the Political Science Research Lab, a lab committed to closing the gender gap in computational methods and political science research by offering big data methods training and professionalization workshops to students. Prior to that, Xinru was a post-doctoral fellow at the Center for International Security and Cooperation at Stanford University (2019-2020), and a pre-doctoral fellow at the Department of Political Science at Vanderbilt University (2018-2019). In 2023, Xinru was selected as an International Strategy Forum fellow by Schmidt Futures, an initiative that recognizes the next generation of problem solvers with extraordinary potential in geopolitics, innovation, and public leadership. -
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
Ph.D. Student in Education, admitted Autumn 2024
BioYue 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
BioDr 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. -
Ade Mabogunje
Sr Research Engineer
BioAde Mabogunje conducts research on the design thinking process with a view to instrumenting and measuring the process and giving feedback to design thinking teams on ways to improve their performance. He works in collaboration with partners in the engineering education, design practice and investment community as a participant-observer in the practice of building and developing ecosystems that support accelerated and continuous innovation in products and services. Prior to this he was the associate director of the Stanford Center for Design Research (CDR). He was also the lead of the Real-time Venture Design Lab program (ReVeL) in the school of Humanities and Sciences. His industry experience includes engineering positions at the French Oil Company Elf (now Total) and research collaboration with Artificial Intelligence Scientists at NASA Ames. He has publications in the areas of design theory and methodology, knowledge management, emotions in engineering, design protocol analysis, and engineering-design education.
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Viviana Macarelli
Postdoctoral Scholar, Bioengineering
BioViviana earned her PhD in Clinical Biochemistry from the University of Cambridge (UK) in 2024, where she focused on the role of primary cilia in metabolic sensing by the hypothalamus. She then joined the Lundberg lab as a postdoc for a project in collaboration with the Chan Zuckerberg Imaging Institute. She will focus on characterizing primary cilia in the adult brain using human induced pluripotent stem cells (hIPSC).
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Alex Macario MD MBA
Professor of Anesthesiology, Perioperative and Pain Medicine (MSD)
On Leave from 01/05/2026 To 07/03/2026Current Research and Scholarly InterestsDr. Macario studies health care economics & outcomes, with a special focus on surgery and anesthesia. He is well known for helping develop the field of operating room management, and is keenly interested in the cost-effectiveness analyses of drugs and devices. For the past decade Dr. Macario has added medical education as a research priority to better understand methods to best teach students and residents.
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Marisa MacAskill
Director of Finance & Operations, Environmental Social Sciences
BioMarisa MacAskill is the Director of Finance & Operations for the department of Environmental Social Sciences (ESoS) at the Stanford Doerr School of Sustainability (SDSS). Marisa joined the SDSS in June 2023 as the Assistant Director of Finance & Operations of the, then, Social Sciences Division. Previously she served as the Program Manager for Finance & Research Administration and Faculty & Academic Affairs for Stanford's Institute for Human-Centered Artificial Intelligence (HAI), where she also held the role as HAI's inaugural Education Program Manager. Marisa started her career at Stanford in 2017 as the Fellowships and Student Programs Manager for the Center for International Security and Cooperation (CISAC) at the Freeman Spogli Institute for International Studies (FSI) where she delivered academic programming, managed admissions, and supported research and learning opportunities for undergraduate and graduate students, and postdoctoral fellows. Prior to Stanford, Marisa was the Assistant Director for Administration and Programming at the McKinnon Center for Global Affairs at Occidental College where she worked on strategic initiatives, international programming, and student/faculty grants. Marisa also served as a seasonal reader for Oxy’s Admissions Office and as a strategic planning analyst for the Annenberg Foundation Trust at Sunnylands.
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Anthony Machi, MD
Clinical Associate Professor, Anesthesiology, Perioperative and Pain Medicine
BioDr. Anthony Machi is a double-board-certified, fellowship-trained anesthesiologist and pain management specialist with Stanford Health Care. He is also a clinical associate professor in the Department of Anesthesiology, Perioperative, and Pain Medicine, Division of Pain Medicine at Stanford University School of Medicine.
Dr. Machi diagnoses and treats a wide range of pain conditions, including acute and chronic postsurgical pain, nerve-related (neuropathic) pain, and pain affecting the back, neck, and joints. He specializes in using minimally invasive techniques to relieve pain and enhance quality of life for his patients who are recovering after surgery.
Dr. Machi’s research interests include using ultrasound to study the greater occipital nerve in people with greater occipital neuralgia. He has also studied patient outcomes and pain management strategies for many types of surgery, including minimally invasive valve surgery and major shoulder surgery.
Dr. Machi has published his research in peer-reviewed journals, such as Seminars in Cardiothoracic and Vascular Anesthesia, Regional Anesthesia & Pain Medicine, Anesthesia & Analgesia, and PAIN. He has also presented to his peers at national and regional meetings, including the annual meetings of the American Society of Anesthesiologists (ASA), the American Society of Regional Anesthesia and Pain Medicine (ASRA), and the Texas Society of Anesthesiologists.
Dr. Machi is a member of the American Academy of Pain Medicine, ASA, ASRA, the North American Neuromodulation Society, and the World Academy of Pain Medicine United. -
M Bruce MacIver
Professor (Research) of Anesthesiology, Perioperative and Pain Medicine, Emeritus
Current Research and Scholarly InterestsWe study drug effects on the nervous system. Cellular, synaptic and molecular drug actions are investigated using electrophysiological and pharmacological tools in cortical/hippocampal brain slice preparations. We are also interested in mechanisms of neuronal integration and synchronization, especially related to patterns of EEG activity seen in vivo and in brain slices.
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Crystal Mackall
Ernest and Amelia Gallo Family Professor and Professor of Pediatrics and of Medicine
Current Research and Scholarly InterestsRecent clinical studies, by us and others, have demonstrated that genetically engineered T cells can eradicate cancers resistant to all other therapies. We are identifying new targets for these therapeutics, exploring pathways of resistance to current cell therapies and creating next generation platforms to overcome therapeutic resistance. We have discovered novel insights into the biology of human T cell exhaustion and developed approaches to prevent and reverse this phenomenon.
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Kristen Klepac MacKenzie, MD
Clinical Assistant Professor, Anesthesiology, Perioperative and Pain Medicine
BioDr. Kristen MacKenzie is a Clinical Assistant Professor in the Department of Anesthesiology, Perioperative, and Pain Medicine. Dr. MacKenzie graduated AOA with a MD from UCSF and then completed her anesthesia residency and pain medicine fellowships at Stanford. She works at the Stanford Pain Management Center with specialty interests in chronic pelvic and abdominal pain, as well as peripartum pain. She is the co-director for the Stanford Pelvic Pain Program as well as part of the Stanford Pelvic Health Center for interdisciplinary, multimodal care.
She completed a Stanford Faculty Medical Humanities Fellowship, focusing on the role of communication and the arts in modern medicine. She serves as the co-director for the Women's Sexual Dysfunction Case Conference as well as the Pain Division representative to the Stanford Anesthesia Communications Council. She enjoys being able to spend time with learners and participates in the Women in Medicine mentoring program annually.
She is active in the American Academy of Pain Medicine (AAPM), and for the 2025-2026 year is serving as the Women in Pain Medicine Shared Interest Group (SIG) Co-Chair as well as the Media & Public Relations SIG Chair.
Outside of work, she enjoys being outdoors in the Bay Area, trail running, and spending time with her husband and two boys.
Clinical focus:
Pelvic pain, due to multiple causes including:
Dyspareunia
Painful Bladder Syndrome/ Interstitial cystitis/ Dysuria
Endometriosis
Fibroids
Pelvis Congestion Syndrome
Pelvic Floor Dysfunction
Pudendal Nerve Pain
Rectal/Anal Pain
Vulvar Pain/ Vulvodynia/ Vaginismus
Nerve entrapment syndromes, including hernia nerve entrapment
Post-partum and Peri-partum pain
Abdominal pain
Musculoskeletal pain
New Patients: Please have your primary treating provider place a referral to Stanford Pain Clinic and specify Pelvic Pain, Dr. MacKenzie. -
Sean Mackey, M.D., Ph.D.
Redlich Professor, Professor of Anesthesiology, Perioperative, and Pain Medicine (Adult Pain) and, by courtesy, of Neurology and Neurological Sciences
Current Research and Scholarly InterestsMultiple NIH funded projects to characterize CNS mechanisms of human pain. Comparative effectiveness of cognitive behavioral therapy and chronic pain self-management within the context of opioid reduction (PCORI funded). Single session pain catastrophizing treatment: comparative efficacy & mechanisms (NIH R01). Development and implementation of an open-source learning healthcare system, CHOIR (http://choir/stanford.edu), to optimize pain care and innovative research in real-world patients.
