Stanford University
Showing 26,101-26,150 of 34,966 Results
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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
BioMaria 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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Michal Ruprecht
Affiliate, Senior Associate Dean for Global Health
BioMichal Ruprecht is a health journalist and fourth-year medical student at Wayne State University School of Medicine. He is the 2025 AAAS Mass Media Fellow at NPR and the Stanford University School of Medicine Global Health Media Fellow. He will join the Journalism Program this fall as part of the master's cohort, followed by an internship at CNN Health.
He is particularly interested in how disruptive medical journalism improves scientific and medical understanding. He previously interned at ABC News, MedPage Today and the American Public Health Association.
At ABC News, he led coverage of maternal mortality among Black women, childhood bereavement and gun violence. While at MedPage, he was the first reporter to cover Stanford’s incoming class of surgery residents, highlighting the attention they received for being nearly all women. He also published an investigation into the widespread culture of piracy among medical students.
Prior to that, Michal was a beat reporter, assistant editor and investigative reporter for The Michigan Daily, the University of Michigan’s independent daily student newspaper. At The Daily, he spearheaded a seven-month investigation into the culture of silence among student researchers and led the paper’s research beat.
Beyond reporting, Michal was an Association of Health Care Journalists American Cities Health Journalism Fellow and serves on the Society of Professional Journalists Student Advisory Board. He is also a member of the Association of Health Care Journalists Membership Committee and was a STAT News Summit Fellow.
His research explores interventions rooted in equity and inclusion to drive positive change in underserved communities.
Michal graduated with honors and a B.S. in neuroscience from the University of Michigan in 2022, where he leveraged community action and social change to partner with individuals affected by the Flint water crisis. He wrote his senior thesis on a membrane protein and created three ceramic sculptures of the channel.
Michal is a member of the Arnold P. Gold Humanism Honor Society. He serves on the boards of the Michigan Chapter of the American Academy of Pediatrics and Riley’s Way Foundation.
He can be reached at mruprecht@umich.edu, on Bluesky @michalruprecht.com or on Signal at @mrup.01. -
Ahmad Rushdi
Director of Industry Programs, Institute for Human-Centered Artificial Intelligence (HAI)
BioAhmad A. Rushdi, PhD, is the director of industry Research Programs, at Stanford’s Institute for Human-Centered AI (HAI). He works on translating cutting-edge AI research into applied, responsible, and deployable AI solutions for global enterprises in different domains, building durable bridges between Stanford scholars and industry researchers via research collaborations and executive education. As a research scientist, Ahmad's own research focuses on rigorous uncertainty quantification methods for trustworthy AI/ML models and systems. Previously, he held R&D roles at Sandia National Labs, Northrop Grumman, UC Davis, UT Austin, and Cisco. PhD: Electrical & Computer Engineering, UC Davis, and MS/BS: Electrical Engineering, Cairo University.
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Christopher John Russell
Associate Professor of Pediatrics (Hospital Medicine)
BioDr. Russell is an Associate Professor of Pediatrics in the Division of Pediatric Hospital Medicine and a board-certified academic pediatric hospitalist at Lucile Packard Children’s Hospital. His clinical responsibilities include caring for children hospitalized for a variety of illnesses. His research focuses on developing evidence-based care for hospitalized children with medical complexity, including acute respiratory infections (such as pneumonia and bacterial tracheitis). His research efforts have been recognized through receipt of the University of Southern California’s Clinical and Translational Science Institute’s KL2 Mentored Research Career Development Award (2014-16), the Academic Pediatric Association’s Young Investigator Award (2015-16), the NIH Loan Repayment Program (2017-2021) and a large grant from the Gerber Foundation (2020-2022). In August 2021, he received a five-year R01 award from the Agency for Healthcare Research and Quality to study bacterial respiratory infections in children with tracheostomy. Outside of his clinical and research responsibilities, Dr. Russell focuses on research mentorship of medical students, pediatric residents, and pediatric hospital medicine fellows as well as improving representation of underrepresented minorities in medicine throughout the continuum of physician training. Dr. Russell completed a term as the chair of the Academic Pediatric Association’s Membership, Diversity, and Inclusion Committee (2022-2025) and is on the Executive Committee for the Pediatric Research in Inpatient Settings research network. Dr. Russell is active in the AAP and currently serves as an Associate Editor for the journal Hospital Pediatrics.
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Jonathan Russell
Associate Lab Dir., IT (CIO), Information Technology
Current Role at StanfordChief Information Officer at SLAC National Accelerator Laboratory
