Stanford University
Showing 29,601-29,700 of 37,038 Results
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Arend Sidow
Professor of Pathology and of Genetics
Current Research and Scholarly InterestsWe have a highly collaborative research program in the evolutionary genomics of cancer. We apply well-established principles of phylogenetics to cancer evolution on the basis of whole genome sequencing and functional genomics data of multiple tumor samples from the same patient. Introductions to our work and the concepts we apply are best found in the Newburger et al paper in Genome Research and the Sidow and Spies review in TIGS.
More information can be found here: http://www.sidowlab.org -
Allison Tamara Siebern
Adjunct Clinical Associate Professor, Psychiatry and Behavioral Sciences - Sleep Medicine
BioDr. Allison Siebern, PhD, DAc, LAc, CBSM is a sleep medicine psychologist and neuroscience-based doctor of acupuncture specializing in sleep, mood, and neurological health. She is board certified in Behavioral Sleep Medicine by the American Board of Sleep Medicine.
Dr. Siebern is a pioneer in the field of integrative sleep health as she blends her training and expertise in neuroscience-based acupuncture, cognitive behavioral medicine, psychophysiology, near-infrared transcranial photobiomodulation and clinical neuroscience. Dr. Siebern's current integrative health research is on the intersection of scalp acupuncture and near-infrared transcranial photobiomodulation (tPBM) as neuromodulatory mechanisms to assist in improved symptom outcomes in neurodegenerative disorders and post-stroke recovery.
Dr. Siebern is currently a Sleep Medicine Psychologist and Behavioral Sleep Medicine Fellowship Track Director with the Durham VA Medical Center and the Director of Integrative Sleep Wake Health, PLLC. Dr. Siebern is an Adjunct Clinical Associate Professor at Stanford University School of Medicine in the Sleep Medicine Division where she completed the sleep fellowship from 2008 to 2010 and stayed on as full-time faculty until 2015 where she served as Associate Director and Co-Fellowship Training Director and then Director of the Behavioral Sleep Medicine Program. She has been treating patients of all ages in the field of sleep medicine for 15 years. She consults with companies on sleep and neurological health science, is published in peer-reviewed journals, has given talks at national conferences, and has been interviewed with many media outlets. Dr. Siebern has a passion for the field of sleep health and believes in the importance of training future generations of sleep providers. -
Dawn H. Siegel, MD
Clinical Professor, Dermatology
Clinical Professor (By courtesy), PediatricsCurrent Research and Scholarly InterestsI'm dedicated to connecting patients with clinical research trials and contributing to research on specific skin conditions particularly hemangiomas, birthmarks, and PHACE syndrome. My research also aims to develop solutions to health disparities through improved access to pediatric dermatologists and treatments.
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Robert Siegel
Professor (Teaching) of Microbiology and Immunology
Current Research and Scholarly InterestsMy work is primarily involved in medical education and curricular development, especially in the areas of infectious disease, virology, HIV, and molecular biology. Projects included electronic applications to science education, three dimensional model building, service learning, and the development of undergraduate research projects.
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Robert E. Siegel
Lecturer
Current Research and Scholarly InterestsRobert Siegel researches strategy and innovation in both large and small companies, as well as the opportunities and challenges that technological change brings to these firms. Additionally, Robert teaches product management and product development best practices and methods, as well as entrepreneurial finance over the life-cycle of growing companies.
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Nicholas Siemons
Research Engineer, Precourt Institute for Energy
Postdoctoral Scholar, Materials Science and EngineeringBioNicholas began his academic career by studying integrated Masters at University College, London. During this time he published his first article, "Multiple exciton generation in nanostructures for advanced photovoltaic cells" - a review of how to produce photovoltaics with greater than 100% internal efficiencies. Following this Nicholas began research into solar voltaics and organic batteries in the group of Prof. Jenny Nelson at Imperial College, London. During this time Nicholas developed his keen interest in how to relate the chemical design of polymers to their ability to function as battery electrode materials. To achieve this goal, Nicholas applies atomistic simulation methods to such polymer systems, and relates the simulated findings to experimental results, bridging the gap between chemistry and device properties. As well as linking molecular chemical design to device performance, Nicholas applies novel simulation and analysis methodologies to study these systems, including Molecular Dynamics, Density Functional Theory, Molecular Metadynamics and Network Analysis.
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Branimir I. Sikic, M. D.
Professor of Medicine (Oncology), Emeritus
Current Research and Scholarly InterestsResearch Interests: cancer pharmacology, mechanisms of resistance to anticancer drugs, regulation and function of MDR1 and tubulin genes, CD47 as a target for activation of anticancer macrophases, Phase I trials of new drugs, gene expression profiling of cancers
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Pilleriin Sikka
Postdoctoral Scholar, Anesthesiology, Perioperative and Pain Medicine
Current Research and Scholarly InterestsWhat makes certain experiences transformative, and how can we harness them to support resilience and mental health? I explore this question by studying emotions across various states of consciousness—waking, dreaming, anesthesia, psychedelics, and meditation. With a background in psychology, neuroscience, and anesthesiology, I bring together methods that are rarely combined: daily diaries and surveys, language and narrative analysis, neurophysiological recordings, lab experiments, and clinical trials. My work has three main aims: (1) to understand how affective experiences unfold across states; (2) to test whether these experiences can be deliberately shaped to support mental health; and (3) to identify the mechanisms that make them transformative. This interdisciplinary approach has led to the first controlled studies of anesthesia-induced dreams for trauma, new insights into peace of mind and emotion regulation, and cross-state comparisons showing how affective experiences in altered states can foster resilience. My long-term goal is to develop a new frontier in affective science: the study of how transformative experiences across different states of mind can improve well-being.
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Oscar Silva
Clinical Assistant Professor, Pathology
BioOscar is an academic hematopathologist who completed anatomic and clinical pathology residency and hematopathology fellowship at Stanford in 2020. Prior to Stanford, he received his MD and PhD from UCLA. His interests include immunology, the pathogenesis and diagnosis of lymphomas, and global health.
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Ruwan Silva, MD, MPhil
Clinical Assistant Professor, Ophthalmology
Clinical Assistant Professor (By courtesy), NeurosurgeryBioProfessor Ruwan Amila Silva, MD, MPhil is board certified and fellowship trained vitreoretinal surgeon in the department of ophthalmology at Stanford University Medical Center. He received his BA in Neurobiology from Harvard University graduating Magna cum laude with Highest Honors. He then received his Masters of Philosophy (MPhil) in Neurobiology from Cambridge University in England. Following this, he received his medical degree from Stanford University’s School of Medicine. Dr. Silva completed his ophthalmology residency at the Bascom Palmer Eye Institute, the top rated eye hospital in the country. While there he was awarded the Heed Fellowship, the most prestigious national award for ophthalmology residents in the country. Dr. Silva returned to Stanford University to complete his vitreoretinal surgery fellowship where he was awarded the Ronald G. Michels Foundation Award, the nation’s highest honor for a retina surgery fellow. During his fellowship at Stanford he was also awarded the prestigious Evangelos S. Gragoudas Award by the Macula Society. Following fellowship, Dr. Silva remained at Stanford University's School of Medicine as an Assistant Professor of Vitreoretinal Surgery in the Department of Ophthalmology. Since 2015, he has been named one of “America’s Top Ophthalmologists” by Consumers’ Research Council of America. He was also selected as a "Top Ophthalmologist" by the International Association of Ophthalmologists.
Dr. Silva's clinical practice focuses mainly on macular degeneration and retinal vascular disease (such as diabetic retinopathy, retinal vein occlusions and central serous retinopathy). Surgically, he specializes in diseases of the vitreous and retina: including repair of retinal detachments, surgery for the macula (such as treatment of epiretinal membranes and macular holes) and correction of dislocated intraocular lenses. His research interests mainly involve developing novel therapies for these diseases (http://med.stanford.edu/artificial-retina.html) and have resulted in over 50 combined peer-reviewed scientific manuscripts, book chapters and national meeting presentations.
Dr. Silva is a member of the American Academy of Ophthalmology, the Association for Research in Vision and Ophthalmology, as well as the American Society of Retina Specialists. He is a Board Certified Diplomate of the American Board of Ophthalmology. -
Agripino S. Silveira
BioAgripino is as Advanced Lecturer in Portuguese at the Stanford Language Center. He earned his Ph.D. in Linguistics from the University of New Mexico with a research focus on “Subject Expression in Brazilian Portuguese.” Over the years, Agripino has made significant contributions to the field of linguistics and Portuguese language studies, with publications that include the "Modern Brazilian Portuguese Grammar" (co-authored) and several research articles in notable journals.
In addition to his academic accomplishments, Agripino has a rich history of teaching, having been a faculty member at the Middlebury Language Schools and an ESL instructor at the University of New Mexico. He has also held administrative roles, including co-chairing the Portuguese Special Interest Group (SIG) and coordinating pronunciation courses at the Middlebury Portuguese Language School.
Agripino's expertise is further highlighted by his role as a rater and tester of Oral Proficiency Interviews (OPIs) and as a rater of Written Proficiency Tests (WPTs), both in Portuguese.
His professional affiliations include the American Organization of Teachers of Portuguese (AOTP), American Portuguese Studies Association (APSA), Linguistic Society of America (LSA), and the American Council of Teachers of Foreign Languages (ACTFL), among others. -
Bernardo Silveira
Ph.D. Student in Education, admitted Autumn 2025
BioBernardo Silveira is an education journalist, high school teacher, and teacher educator with over a decade of teaching experience. His foundational education includes a bachelor's degree in Portuguese Language and Literatures from Universidade Salgado de Oliveira. Besides furthering his expertise through postgraduate specializations in New Trends in Education and Student Focus, Technologies Applied to Education, and Higher Education Teaching and Active Methodologies, Bernardo earned a master's degree in Education with a specialization in Innovation in Education from the University of Lisbon. He is currently a doctoral student in Education at Stanford University, focusing on Curriculum Studies and Teacher Education, as well as Learning Sciences and Technology Design.
Bernardo's research focuses on teacher education and the integration of digital technologies in education. He is passionate about community- and design-based research that engages teachers in educational discussions, democratizes access to technologies, and advocates for supportive public policies. Beyond his academic pursuits, Bernardo has a proven record of authoring didactic materials, developing curricula and MOOCs, and managing pedagogical initiatives. -
Gerald Silverberg
Professor of Neurosurgery, Emeritus
Current Research and Scholarly InterestsAge-related changes in the blood-brain barrier (BBB)and on CSF dynsmics decrease the clearance of toxic metabolites, such as amyloid beta peptides (A-betas), from the brain. I am studing the effects of aging and hydrocephalus on the BBB receptors that transport A-betas and on the formation and bulk flow of CSF.
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Martin Steven Silverman
Affiliate, Central Mgmt-Misc AR
BioDr. Silverman practices general and complicated obstetrics and gynecology. He is experienced in laparoscopy, hysteroscopy, endometrial ablation, and surgery for urinary incontinence. He has a special interest in the evaluation of menstrual disorders, and in the care of perimenopausal and menopausal women. Dr. Silverman and his wife, Dr. Pamela Silverman (pediatrics), have three children.
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Norman H. Silverman
Professor of Pediatrics (Pediatric Cardiology) at the Lucile Salter Packard Children's Hospital, Emeritus
Current Research and Scholarly InterestsMy research interests center around cardiac ultrasound. I am currently working on several areas in the development of human cardiac ultrasound.
These are fetal cardiac ultrasound. intraoperative and transesophageal ultrasound imaging in children, imaging potiential for ultrasound two and three dimensional modalities in children with congenital heart disease -
Rebecca D. Silverman
Judy Koch Professor
Current Research and Scholarly InterestsMy research focuses on early language and literacy development and instruction.
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Eva Silverstein
Professor of Physics
BioProfessor Silverstein conducts research in theoretical physics -- particularly gravitation and cosmology, as well as recently developing new methods and applications for machine learning.
What are the basic degrees of freedom and interactions underlying gravitational and particle physics? What is the mechanism behind the initial seeds of structure in the universe, and how can we test it using cosmological observations? Is there a holographic framework for cosmology that applies throughout the history of the universe, accounting for the emergent effects of horizons and singularities? What new phenomena arise in quantum field theory in generic conditions such as finite density, temperature, or in time dependent backgrounds?
Professor Silverstein attacks basic problems in several areas of theoretical physics. She develops concrete and testable mechanisms for cosmic inflation, accounting for its sensitivity to very high energy physics. This has led to a fruitful interface with cosmic microwave background research, contributing to a more systematic analysis of its observable phenomenology.
Professor Silverstein also develops mechanisms for stabilizing the extra dimensions of string theory to model the accelerated expansion of the universe. In addition, Professor Silverstein develops methods to address questions of quantum gravity, such as singularity resolution and the physics of black hole and cosmological horizons.
Areas of focus:
- optimization algorithms derived from physical dynamics, analyzing its behavior and advantages theoretically and in numerical experiments
- UV complete mechanisms and systematics of cosmic inflation, including string-theoretic versions of large-field inflation (with gravity wave CMB signatures) and novel mechanisms involving inflaton interactions (with non-Gaussian signatures in the CMB)
-Systematic theory and analysis of primordial Non-Gaussianity, taking into account strongly non-linear effects in quantum field theory encoded in multi-point correlation functions
-Long-range interactions in string theory and implications for black hole physics
- Concrete holographic models of de Sitter expansion in string theory, aimed at upgrading the AdS/CFT correspondence to cosmology
- Mechanisms for non-Fermi liquid transport and $2k_F$ singularities from strongly coupled finite density quantum field theory
- Mechanisms by which the extra degrees of freedom in string theory induce transitions and duality symmetries between spaces of different topology and dimensionality -
Julia Fridman Simard
Associate Professor of Epidemiology and Population Health, of Medicine (Immunology & Rheumatology) and, by courtesy, of Obstetrics and Gynecology (Maternal Fetal Medicine)
BioJulia Fridman Simard, ScD, is an Associate Professor of Epidemiology & Population Health, and of Medicine in Immunology and Rheumatology and Obstetrics and, by courtesy, Gynecology in Maternal Fetal Medicine at Stanford University School of Medicine.
Dr. Simard earned her Masters and Doctorate of Science in Epidemiology degrees at the Harvard School of Public Health. During that time she trained with investigators at the Section of Clinical Sciences, Division of Rheumatology, Immunology, and Allergy at Brigham and Women’s Hospital and the Cardiovascular Epidemiology Research Unit at Beth Israel Deaconess Medical Center. In 2008, Dr. Simard relocated to Sweden to begin a Postdoctoral Fellowship in Clinical Epidemiology at the Karolinska Institute in Stockholm. She became an Assistant Professor in their Clinical Epidemiology Unit in 2011, and was later honored with a Karolinska Institute Teaching Award. Leveraging the population-based registers of Sweden, Dr. Simard initiated a national register linkage study to examine the utility of registers in Systemic Lupus Erythematosus (SLE) research and develop an extensive data repository for future epidemiologic investigations.
While maintaining a close collaboration with the Karolinska Institute, she joined Stanford’s faculty in 2013. Dr. Simard's work includes outcomes such as malignancy, stroke, infection, and mortality, in patients with systemic autoimmune rheumatic diseases with a focus on systemic lupus erythematosus. She has made significant contributions at the intersection of reproductive epidemiology and rheumatic disease fueled initially by a K01 career development award from the NIH (NIAMS) to study maternal and fetal outcomes in systemic lupus pregnancy. This led to collaborations with colleagues at Stanford, throughout the US, and abroad, and a series of projects focused on the diagnosis of preeclampsia and associated risks in pregnant women with systemic lupus. With support from the Preeclampsia Foundation for her lab's work examining preeclampsia risk in high-risk populations, and a McCormick Faculty Award from Stanford Medicine, Dr. Simard is taking important steps towards understanding this significant pregnancy complication in pregnancies complicated by rheumatologic disease. Dr. Simard is leading an international study of hydroxychloroquine in lupus pregnancy leveraging mixed methods in partnership with qualitative researchers, patients, clinicians, and epidemiologists in Sweden, Canada, and in the United States, and is expanding to other medications and rheumatic autoimmune diagnoses.
Additionally, Dr. Simard's lab is also interested in how misclassification, missed opportunities, and misdiagnosis contribute to disparities in complex conditions. In addition to methodologic issues around misclassification and bias and the largely clinical epidemiology focus of her work, Dr. Simard's work examines social determinants of health and health disparities. With support from an R01 from NIH (NIAID), her lab is also studying the role of cognitive errors in clinical decision making for female-predominant diseases. This work evaluates this bias in multiple clinical specialties, including rheumatology, neurology, and primary care, and uses mixed methods including randomized survey-based studies and qualitative interviews. -
Lauren Simitz
Ph.D. Student in Aeronautics and Astronautics, admitted Autumn 2021
BioHi there! I'm an aerospace engineer, chemist, and geoscientist striving to both protect our world and advance technologies to explore new ones. Sustainability, teaching, and DEI are just as strong of passions, in and outside of the aerospace sector.
My work in industry (Chevron, SpaceX, Benchmark, Boeing) and academia catalyzed my interest in advancing sustainable, safe propulsion and energy systems. As a Stanford PhD candidate in the Hypersonics, Propulsion, and Energy Laboratory (HyPEL) working under Professor Ronald Hanson, I employ fluid mechanics, heat transfer, and chemical kinetics to experimentally probe combustion behavior.
