Stanford University
Showing 25,701-25,750 of 34,422 Results
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Uta Ruett
Senior Staff Scientist, Stanford Synchrotron Radiation Lightsource
BioUta Ruett is an expert in high-energy x-ray diffraction. Her research is dedicated to developing methods and instrumentation for in situ and operando structural analysis at x-ray user facilities. Her scientific interests cover a wide range of diffraction applications, including solid-state physics, synthesis of new materials, catalysis, and electrochemistry. In recent years, her primary focus has been on the structural analysis of disordered thin films and interfaces.
Uta Ruett received her diploma in Physics from the University of Hamburg, Germany, in 1993, and her Ph.D. in Physics from the same institution in 1996. She began her postdoctoral research at Northern Illinois University before becoming an assistant scientist at Argonne National Laboratory. She then worked at the Max-Planck-Institute for Solid-State Physics in Stuttgart, Germany, before joining DESY in Hamburg, Germany, as a staff scientist and later as a Beamline Manager at PETRA III, DESY, Germany. In 2017, Uta Ruett accepted the position of group leader at the Advanced Photon Source (APS), where she oversaw the development and research program of five high-energy x-ray scattering beamlines. In 2024, she joined SLAC as a senior advisor for future projects at the Stanford Synchrotron Radiation Lightsource (SSRL). -
Laura Jane Ruffo, MSN, RN, FNP-BC
Affiliate, IT Services
BioLaura Ruffo, MSN, RN, FNP-BC is a nurse practitioner in the Department of Urological Surgical Oncology in the Cancer Center at Stanford University Medical Center. She graduated with her Family Nurse Practitioner (FNP) degree from Columbia University School of Nursing. Her area of clinical practice is in urological surgical oncology, specializing in kidney, bladder, prostate, testicular, and penile cancer.
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Daniel Rugar
Visiting Scholar, Ginzton, E.L. Laboratory
BioDaniel 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. -
Jessica L. Ruiz
Instructor, Pediatrics - Endocrinology
BioDr. Jessica Ruiz is a pediatric endocrinologist and Instructor at Stanford University and the Lucile Packard Children’s Hospital.
As a pediatrician-scientist and bioengineer, Dr. Ruiz's scholarly interest is pediatric type 2 diabetes. Her passion is to better predict, prevent and treat type 2 diabetes through digital phenotyping. Dr. Ruiz's vision is to apply data science and machine learning approaches to continuous glucose monitoring (CGM) data. Her work seeks to parameterize glucose kinetics to ultimately build CGM-based type 2 diabetes risk profiles. She is also involved in multiple clinical studies using dynamic CGM metrics to inform clinical care for patients with diabetes - including staging of diabetes as it develops.
Clinically, Dr. Ruiz enjoys caring for all pediatric patients seeking general endocrinology and diabetes care.
A native Texan, Dr. Ruiz obtained a B.S. in Bioengineering from Rice University (Houston, TX). She completed her M.D. at Harvard Medical School in the Harvard-MIT Health Sciences and Technology (HST) program (Boston, MA). She remained at Harvard to complete her training in Pediatrics in the Boston Combined Residency Program (Boston Children's Hospital and Boston Medical Center), followed by her training in Pediatric Endocrinology at Boston Children's Hospital. She was on the faculty at Boston Children's Hospital/Harvard Medical School as an Instructor for 2 years prior to moving to Stanford.
Dr. Ruiz also enjoys mentoring trainees and was formerly a Harvard Medical School Faculty Advisor and Associate Program Director for the Boston Children's Pediatric Endocrinology Fellowship Program. -
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 2026-10-01 To 2026-12-31BioMaria 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.
