Stanford University
Showing 27,601-27,650 of 37,008 Results
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Daniel Rugar
Affiliate, Ginzton, E.L. Laboratory
Visiting Scholar, Ginzton, E.L. LaboratoryBioDaniel Rugar is visiting scholar at Stanford University working with Professor Amir Safavi-Naeini. He retired from IBM Research in 2024, finishing as Principal Research Scientist and Manager of Exploratory Quantum Devices at the IBM Almaden Research Center in San Jose, California. He previously served as an IBM Distinguished Research Staff Member and Manager of Nanoscale Studies.
Dr. Rugar received his B.A. in Physics from Pomona College in 1975 and his Ph.D. in Applied Physics from Stanford University in 1982. He was co-recipient of the Günther Laukien Prize for the development of magnetic resonance force microscopy and was awarded the Cozzarelli Prize from the Proceedings of the National Acacademy of Sciences. He has served as a Distinguished Lecturer of the IEEE Magnetic Society. More recently, he was awarded the 2022 APS Keithley Award in Measurement Science. Dr. Rugar is a fellow of the American Physical Society (APS), the American Association for the Advancement of Science (AAAS) and the Institute of Electrical and Electronic Engineers (IEEE). -
Perisa Ruhi-Williams, MD
Clinical Assistant Professor (Affiliated), Surgery - General Surgery
Staff, Surgery - General SurgeryBioDr. Perisa Ruhi-Williams is a board-certified General Surgeon practicing at the VA Palo Alto Health Care System. Her clinical practice is centered on utilizing robotic-assisted techniques for metabolic/bariatric surgery and hernia and abdominal wall reconstruction.
She graduated as an Echols Scholar with a Bachelor of Science in Biology from the University of Virginia. She earned her MD from the Virginia Tech Carilion School of Medicine and completed her General Surgery residency at the University of California, Irvine. While in residency, she served as the Chief Resident in Quality and Patient Safety at the VA Long Beach Medical Center. She subsequently completed an advanced fellowship in Minimally Invasive Surgery, Bariatrics, and Foregut Surgery at Stanford Health Care.
Dr. Ruhi-Williams is passionate about advancing surgical education and the wellness of surgical trainees. In addition to her clinical roles, she serves as the Site Director for the Surgery Core Clerkship at VA Palo Alto and Assistant Site Director for the General Surgery Residency Program at VA Palo Alto. -
Brian Ruhle, MD, MS
Clinical Assistant Professor, Surgery - General Surgery
BioDr. Brian Ruhle is a board-certified surgeon with dual-fellowship training in minimally invasive bariatric (weight loss) surgery and endocrine surgery. He is also a clinical assistant professor in the Department of Surgery, Division of General Surgery at Stanford University School of Medicine.
Dr. Ruhle specializes in bariatric surgery, foregut (upper digestive tract) surgery, adrenal surgery, and abdominal wall reconstruction. He uses leading-edge laparoscopic and robotic surgical techniques to help patients achieve sustainable weight loss and improve obesity-related health conditions. His expertise in advanced minimally invasive procedures offers patients significant benefits, including faster recoveries, reduced pain, and shorter hospital stays.
Dr. Ruhle’s research interests span a wide range of topics in metabolic and bariatric surgery. His studies have explored combination therapies for managing obesity, improvements in screening and treating endocrine disorders, and optimizing outcomes in thyroid and parathyroid surgeries. He has published his findings in many peer-reviewed journals, including Surgery, Journal of Gastrointestinal Surgery, and Journal of the American College of Surgeons.
Dr. Ruhle has presented at prominent national conferences, including the annual meetings of the American Association of Endocrine Surgeons and the American College of Surgeons Clinical Congress. His presentations have discussed using GLP-1 receptor agonists (weight loss medications that help regulate blood sugar and reduce appetite) before and after bariatric surgery. He has also addressed improving screening protocols for hyperaldosteronism (high blood pressure caused by excess production of the hormone aldosterone by the adrenal gland).
Dr. Ruhle is a member of the American Association of Endocrine Surgeons, the American Society for Metabolic and Bariatric Surgery, and the Society of American Gastrointestinal and Endoscopic Surgeons. -
Amber Ruiz
Visual Resources Curator, Art and Architecture Library
BioI am the Curator of the Visual Resources Center (VRC). The VRC provides digital image support for teaching and research at Stanford University. We digitize images on request, provide image database instruction, and maintain a database with over 250,000 digital images that are available to the Stanford community (imagebase.stanford.edu).
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Alejandra Ruiz
Postdoctoral Scholar, General Surgery
BioDr. Alejandra Ruiz is a physician-scientist working at the intersection of clinical medicine, health services research, and community-engaged intervention design. Based on her clinical experience in high-complexity settings, she works to optimize integrative care models that address both physical and mental health needs.
She is currently a postdoctoral researcher in the Departments of Emergency Medicine and General Surgery, where she examines structural barriers to care among underserved populations and develops pathways to improve access and care delivery. Her work is grounded in community-based participatory research, through which she designs, implements, and evaluates culturally responsive interventions. Dr. Ruiz is committed to advancing equitable, sustainable models of care that improve access, engagement, and patient outcomes. -
Maria Ruiz-Primo
Associate Professor of Education
On Leave from 04/01/2026 To 06/30/2026BioMaria Araceli Ruiz-Primo is an Associate Professor at the Graduate School of Education, Stanford University. Her work, funded mainly by the National Science Foundation and the Institute of Education Sciences, examines assessment practices and the assessment of student learning both in the classroom and in large-scale assessment programs. Her publications address the development and evaluation of multiple learning assessment strategies, including concept maps and students’ science notebooks, and the study of teachers’ informal and formal formative assessment practices, such as the use of assessment conversations and embedded assessments. She also has conducted research on the development and evaluation of assessments that are instructionally sensitive and instruments intended to measure teachers’ formative assessment practices. Recently she has worked on the analysis of state testing programs. She was co-editor of a special issue on assessment in the Journal of Research in Science Teaching and a special issue on classroom assessment in the Journal of Educational Measurement. She has published in Science, Educational Measurement: Issues and Practices, the Journal of Research in Science Teaching, and other major technical educational research journals.
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Cristin Runfola
Clinical Professor, Psychiatry and Behavioral Sciences
Current Research and Scholarly InterestsDr. Runfola's research focuses on the epidemiology of dysregulated eating and weight concerns in undeserved populations and her primary interest is in developing and testing the efficacy of clinical interventions designed to improve outcome for eating disorders.
With support from GFED, Dr. Runfola adapted the Uniting Couples in the treatment of Anorexia Nervosa (UCAN) therapy manual for couples in which one or both members have binge-eating disorder (UNITE) and recently completed pilot testing on this treatment. She is in the process of expanding this treatment for all couples affected by binge eating, and is submitting a grant to fund future work testing efficacy. -
Stephen Ruoss
Professor of Medicine (Pulmonary and Critical Care)
Current Research and Scholarly InterestsWe have an active collaborative project examining basic and clinical aspects of non-tuberculous mycobacterial lung infection in non-immune compromised adults. Studies have examined possible cellular immune mechanisms for increased susceptibility to these infections, and are also investigating aspects of optimal diagnosis and treatment. In addition, a clinical and translational research program is investigating the causes and genetic factors underlying the evolution of bronchiectasis.
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Ahmad Rushdi
Director of Industry Programs, Institute for Human-Centered Artificial Intelligence (HAI)
BioAhmad A. Rushdi, PhD, is the director of HAI industry programs—research collaborations and executive education—at Stanford’s Institute for Human-Centered AI (HAI), translating cutting-edge research into responsible, deployable solutions for global enterprises. He forges durable bridges between Stanford scholars and industry to advance trustworthy, real-world AI.
Ahmad's own research focuses on uncertainty quantification and statistical signal processing for AI/ML systems. Previously, he held R&D roles at Sandia National Labs, Northrop Grumman, UC Davis, UT Austin, and Cisco. He earned a PhD in Electrical & Computer Engineering from UC Davis and MS/BS degrees in Electrical Engineering from Cairo University.
