Stanford University
Showing 5,301-5,350 of 7,810 Results
-
Arogyaswami Paulraj
Professor (Research) of Electrical Engineering, Emeritus
BioProf. Arogyaswami Paulraj is an Emeritus Professor at Stanford University. Paulraj's legacy is deeply intertwined with the evolution of wireless communication. His groundbreaking work on MIMO (multiple input, multiple output) technology laid the foundation for today's ubiquitous 4G/5G networks and high-speed Wi-Fi.
Paulraj's journey began in the Indian Navy, where he served from 1965 to 1991. During this time, he led the development of the APSOH anti-submarine sonar system and established three key R&D labs for the Indian government. His contributions earned him the prestigious Padma Bhushan award, India's third highest civilian honor.
Following his naval career, Paulraj joined Stanford University as a postdoctoral researcher. His research focus shifted to wireless communication, where he made groundbreaking contributions to MIMO technology. MIMO enables data transmission using multiple antennas, significantly increasing network capacity and data rates.
Paulraj's innovation has been recognized with numerous accolades, including the 2024 Royal Acad. Eng. Prince Philip Medal, the 2023 IET Faraday Medal, the 2014 Marconi Prize, and the 2011 IEEE Alexander Graham Bell Medal. He is also a fellow of nine national academies in engineering, sciences, and the arts, and an inductee of the US Patent Office’s National Inventors Hall of Fame.
Currently, Paulraj continues to contribute to technological advancement. He chairs several committees for the Government of India, focusing on the Indian Semiconductor Mission and Core ICT initiatives. His dedication to research and development continues to shape the future of wireless communication. -
John M. Pauly
Reid Weaver Dennis Professor
BioInterests include medical imaging generally, and magnetic resonance imaging (MRI) in particular. Current efforts are focused on medical applications of MRI where real-time interactive imaging is important. Two examples are cardiac imaging, and the interactive guidance of interventional procedures. Specific interests include rapid methods for the excitation and acquisition of the MR signal, and the reconstruction of images from the data acquired using these approaches.
-
Kim Butts Pauly
Professor of Radiology (Radiological Sciences Lab) and, by courtesy, of Electrical Engineering
Current Research and Scholarly InterestsWe are investigating and developing, and applying focused ultrasound in neuromodulation, blood brain barrier opening, and ablation for both neuro and body applications.
-
Marco Pavone
Associate Professor of Aeronautics and Astronautics, Senior Fellow at the Precourt Institute for Energy and Associate Professor, by courtesy, of Electrical Engineering & of Computer Science
BioDr. Marco Pavone is an Associate Professor of Aeronautics and Astronautics at Stanford University, where he directs the Autonomous Systems Laboratory and the Center for Automotive Research at Stanford. He is also a Distinguished Research Scientist at NVIDIA where he leads autonomous vehicle research. Before joining Stanford, he was a Research Technologist within the Robotics Section at the NASA Jet Propulsion Laboratory. He received a Ph.D. degree in Aeronautics and Astronautics from the Massachusetts Institute of Technology in 2010. His main research interests are in the development of methodologies for the analysis, design, and control of autonomous systems, with an emphasis on self-driving cars, autonomous aerospace vehicles, and future mobility systems. He is a recipient of a number of awards, including a Presidential Early Career Award for Scientists and Engineers from President Barack Obama, an Office of Naval Research Young Investigator Award, a National Science Foundation Early Career (CAREER) Award, a NASA Early Career Faculty Award, and an Early-Career Spotlight Award from the Robotics Science and Systems Foundation. He was identified by the American Society for Engineering Education (ASEE) as one of America's 20 most highly promising investigators under the age of 40. His work has been recognized with best paper nominations or awards at a number of venues, including the European Conference on Computer Vision, the IEEE International Conference on Robotics and Automation, the European Control Conference, the IEEE International Conference on Intelligent Transportation Systems, the Field and Service Robotics Conference, the Robotics: Science and Systems Conference, and the INFORMS Annual Meeting.
-
Christopher K. Payne, MD
Professor of Urology at the Stanford University Medical Center, Emeritus
Current Research and Scholarly InterestsObstetric Fistula Projects:
1. Preoperative ultrasound evaluation to detect ureteric involvement in vesicovaginal fistulas
2. Patient narrative study to identify key medical, social and economic factors that lead to fistula formation
3. Study of urinary continence after fistula repair
Pelvic pain: investigation into role of pelvic floor in chronic pelvic pain -
Jonathan Payne
Dorrell William Kirby Professor, Senior Associate Dean for Faculty Affairs, Senior Fellow at the Woods Institute for the Environment and Professor, by courtesy, of Biology
Current Research and Scholarly InterestsMy goal in research is to understand the interaction between environmental change and biological evolution using fossils and the sedimentary rock record. How does environmental change influence evolutionary and ecological processes? And conversely, how do evolutionary and ecological changes affect the physical environment? I work primarily on the marine fossil record over the past 550 million years.
-
Susan Payrovi
Clinical Assistant Professor, Anesthesiology, Perioperative and Pain Medicine
BioDr. Payrovi is a physician practicing Integrative and Functional Medicine at Stanford’s Center for Integrative Medicine. She earned her bachelor’s degree in Microbiology and Molecular Genetics at UCLA and completed her medical education at UC San Diego in 2003. She completed a residency in Anesthesiology at USC in 2007. Dr. Payrovi is board certified in Anesthesiology, Hospice and Palliative Medicine, as well as Integrative Medicine. She has additional training in Functional Medicine and acupuncture.
-
Roy Pea
Director, H-STAR, David Jacks Professor of Education and Professor, by courtesy, of Computer Science
Current Research and Scholarly Interestslearning sciences focus on advancing theories, research, tools and social practices of technology-enhanced learning of complex domains
-
Antonia Michelle Rosen Peacocke
Assistant Professor of Philosophy
BioAntonia Peacocke works on philosophy of action, epistemology, philosophy of mind, and aesthetics, including philosophy of literature. As of December 2025, her monograph Mental Means is forthcoming with Oxford University Press. Before coming to Stanford, she was a Bersoff Faculty Fellow in the Philosophy Department at New York University. She earned her Ph.D. from the University of California, Berkeley in 2018.
-
Ronald Pearl
Dr. Richard K. and Erika N. Richards Professor
Current Research and Scholarly InterestsMechanims (molecular and cellular) of pulmonary hypertension, treatment of pulmonary hypertension, treatment of respiratory failure, treatment of septic shock, hemodynamic monitoring
-
Francis Pearman
Assistant Professor of Education
BioFrancis A. Pearman is an Assistant Professor of Education in the Graduate School of Education at Stanford University. His research focuses on how poverty and inequality shape the life chances of children, especially in rapidly changing cities. Pearman holds a Ph.D. and M.Ed. from Vanderbilt University and a B.S. from the University of Virginia.
-
Scott Pearson
Professor at the Food Research Institute, Emeritus
BioScott Pearson taught economic development and international trade in the Food Research Institute. Pearson came to Stanford in 1968 and was promoted to Associate Professor with tenure in 1974 and to Professor in 1980. He served as the Food Research Institute’s Associate Director (1977-1984) and Director (1992-1996). Pearson became Professor Emeritus in 2002. In retirement, Pearson has lectured on 67 travel/study programs for the Stanford Alumni Association and 121 educational travel trips in total, visiting all seven continents.
Pearson grew up in Baraboo, Wisconsin and graduated from the University of Wisconsin with a Bachelor of Sciences degree in American history in 1961. Between 1961 and 1963, he was one of the first Peace Corps Volunteers – serving as a secondary school teacher in Northern Nigeria. Pearson’s marriage to Sandra Anderson in Lagos, Nigeria in 1962 was the first wedding in the Peace Corps.
Pearson decided to pursue a career in academia, specializing in international development. He spent one year in Bologna, Italy and another in Washington, D.C. to earn a Master of Arts degree at the Johns Hopkins School of Advanced International Studies in 1965. Pearson then earned a doctorate in economics at Harvard University in 1968. He wrote his dissertation on the impact of petroleum exports on Nigerian development under the direction of Albert Hirschman and revised his thesis for his first book, Petroleum and the Nigerian Economy (Stanford University Press, 1970).
Pearson began his empirical research in Nigeria (1961-69) and Ghana (1970-78). He later focused on Indonesia (1979-2004), Portugal (1981-95), and Kenya (1986-96). Pearson’s professional work abroad combined research (in collaboration with local university or government researchers), teaching (of short courses to transfer methods of field research and analysis), and policy analysis (to provide policy advice to government officials).
During most years, Pearson taught during two Stanford quarters and spent five months working abroad. In 1978, Pearson received the Dean’s Award for Teaching in Stanford’s School of Humanities and Sciences.
Pearson’s research focused on food and agricultural policy analysis, especially links among price, macroeconomic, and investment policies. He also worked on food price stabilization, trade and exchange rate policies, and social benefit-cost analysis. Wally Falcon, Peter Timmer, and Pearson collaborated for many years in Indonesia and co-authored Food Policy Analysis (The Johns Hopkins University Press, 1983), which received the Award for Professional Excellence, Quality of Communication in 1984 from the American Agricultural Economics Association and was translated into five languages.
In 1982, Eric Monke and Pearson began developing the Policy Analysis Matrix (PAM) approach to integrate policy and project analysis. PAM is a marriage of benefit-cost analysis and economic policy analysis in a matrix framework. Monke and Pearson explained the PAM approach in The Policy Analysis Matrix for Agricultural Development (Cornell University Press, 1989). Most of the 12 books that Pearson co-authored are applications of the PAM. Pearson presented PAM short-courses in China, Indonesia, Italy, Japan, Kenya, the Philippines, Portugal, Russia, Thailand, Washington (the World Bank), and Zimbabwe.
Pearson was a member of numerous university committees and served on the Board of Trustees Committee on Finance and Administration and the Faculty Senate. Pearson and his wife, Sandra, were Faculty Residents in undergraduate dormitories at Stanford for five years (Serra House, 1968-1969 and 1977-1978, Madera House, 1978-1980, and Potter House, 1983-1984). Sandra Pearson later served as Principal of Palo Alto High School (1987-1994 and 2002-2004), and in 2004 she won the Tall Tree Award, sponsored by the Palo Alto Chamber of Commerce and the Palo Alto Weekly. -
Kabir Peay
Senior Associate Dean for Education, Director of the Earth Systems Program, Professor of Biology, of Earth System Science and Senior Fellow at the Woods Institute for the Environment
Current Research and Scholarly InterestsOur lab studies the ecological processes that structure natural communities and the links between community structure and the cycling of nutrients and energy through ecosystems. We focus primarily on fungi, as these organisms are incredibly diverse and are the primary agents of carbon and nutrient cycling in terrestrial ecosystems. By working across multiple scales we hope to build a 'roots-to-biomes' understanding of plant-microbe symbiosis.
-
John R Peck
Spring CSP Instructor
BioJohn Peck teaches portrait and figure drawing for Stanford Continuing Studies.
His paintings and drawings can be seen in private collections and galleries in London, Florence, Dublin, and Santa Fe. He graduated from the Florence Academy of Art and received an MArch from the University of New Mexico, where he was an instructor in the School of Architecture and Planning. He is the co-author of “Drawing in Space: A Manual for Figurative Sculpture.”
His work can be viewed at www.johnpeck.com -
Robert Pecora
Professor of Chemistry, Emeritus
Current Research and Scholarly InterestsThe development of the basic principles behind the dynamic light scattering (DLS) technique and its application to a wide variety of liquid systems is one of Pecora's outstanding contributions to physical chemistry. DLS is now an indispensable tool in the repertoire of polymer, colloid and biophysical chemists. It is generally accepted to be one of the best methods for measuring the mutual diffusion coefficients and, in dilute systems, the hydrodynamic sizes of polymers and particulates in solution or suspension. It is widely used, among other things, for studying size distributions of polymer and colloid dispersions; for testing theories of polymer dynamics in dilute and concentrated systems; and for studying interactions between macromolecules and colloidal particles in liquid dispersions. The basic work that established the foundation of this technique was done in the 1960s. Pecora has revisited this area over the years-formulating theories, for instance, of scattering from hollow spheres, large cylindrically symmetric molecules and wormlike chains.
An experimental program began in the early seventies resulted in a now classic series of studies on the rotational dynamics of small molecules in liquids. This work, utilizing mainly depolarized DLS and carbon 13 nuclear magnetic relaxation, has had a wide impact in the area of liquid state dynamics.
It was also during this period that the theoretical foundation for the fluorescence correlation spectroscopy technique (FCS) was formulated. Because of recent advances in equipment and materials, this technique has recently been revived and is now a powerful tool in biophysics.
The experimental and theoretical techniques developed for the study of the dynamics of relatively simple small molecule liquids have been used to investigate more complex systems such as the rotation of small molecule solvents in glassy and amorphous polymers. The resonance- enhanced depolarized light scattering technique was also developed in this period.
Extensive studies using depolarized dynamic light scattering (using the Fabry-Perot interferometer) as well as photon correlation spectroscopy, NMR, FCS and small angle X-ray scattering to the dynamics of oligonucleotides have determined the hydrodynamic diameter of DNA and the internal bending angles of the bases. They also provided support for relations relating hydrodynamic parameters to molecular dimensions for short rodlike molecules and “polyelectrolyte effects” on the translational and rotational motions of these highly charged molecules.
A major area of experimental and theoretical study has been the study of the dynamics of rigid and semirigid rodlike polymers in both dilute and semidilute dispersions. The work on translation and rotation of poly (-benzyl-L-glutamate) in semidilute solution is a foremost early work in this area.
The Pecora group has synthesized and studied the dynamics of model
rigid rod/sphere composite liquids. Studies of the translation of dilute spheres through solutions of the rods as functions of the rod and sphere sizes and the rod concentrations have provided the stimulus for more experiment and theoretical work in this area. Transient electric birefringence decay studies of the rotation of dilute rigid rod polymers in suspensions of comparably sized spherical particles have revealed scaling laws for the rod rotation.
A unique feature of part of this work on rigid and semirigid rodlike polymers is the utilization of genetic engineering techniques to construct a monodisperse, homologous series of DNA restriction fragments. These biologically-produced fragments have served as well-characterized model macromolecules for solution studies of the dynamics of semirigid rodlike polymers.
The well-regarded book of Pecora and Berne on dynamic light scattering, first published in 1976, has become a major reference work. It is now a Dover paperback. -
Andrea Pedroza Tobias
Instructor, Pediatrics - General Pediatrics
BioDr. Andrea Pedroza is an instructor in the Department of Pediatrics in the Partnerships for Research in Child Health Lab. She earned a Ph.D. in Global Health from the University of California, San Francisco (UCSF) and a Master of Science in Nutrition from the National Institute of Public Health in Mexico (INSP). Her research focuses on generating evidence for interventions and policy recommendations aimed at improving the dietary quality of children to impact their health and development. Currently, she is employing a community-engaged approach to design nutrition interventions and policy recommendations that aim to reduce the consumption of ultra-processed foods among low-income children to narrow the gap in health disparities.
-
Donna Peehl, PhD
Professor (Research) of Urology, Emerita
Current Research and Scholarly InterestsMy research focuses on the molecular and cellular biology of the human prostate. Developing realistic experimental models is a major goal, and primary cultures of prostatic epithelial and stromal cells are my main model system. Our discoveries are relevant to prevention, detection, diagnosis and treatment of benign and malignant prostatic diseases.
-
Mark Pegram
Susy Yuan-Huey Hung Professor
Current Research and Scholarly InterestsMolecular mechanisms of targeted therapy resistance in breast and other cancers
-
Eldon Pei
Lecturer
Current Research and Scholarly InterestsSpecialisation: world cinema; documentary film; post-war visual cultures; East and Southeast Asian studies; propaganda; media, technology and society; critical theory; postcolonialism
-
Rafael Pelayo, MD
Clinical Professor, Psychiatry and Behavioral Sciences - Sleep Medicine
Current Research and Scholarly InterestsSleep Disorders in Adults and Children
-
Norbert Pelc
Boston Scientific Applied Biomedical Engineering Professor and Professor of Radiology, Emeritus
Current Research and Scholarly InterestsBroadly, Dr. Pelc is interested in the physics, engineering and mathematics of medical imaging, especially computed tomography, digital x-ray imaging, magnetic resonance imaging, and hybrid multimodality systems. His current research is concentrated in the development of computed tomography systems with higher image quality and dose efficiency, in the characterization of system performance, and in the development and validation of new clinical applications.
-
Markus Pelger
Associate Professor of Management Science and Engineering
Current Research and Scholarly InterestsHis research focuses on understanding and managing financial risk. He develops mathematical financial models and statistical methods, analyzes financial data and engineers computational techniques. His research is divided into three streams: machine learning solutions to big-data problems in empirical asset pricing, statistical theory for high-dimensional data and stochastic financial modeling.
-
Gary Peltz
Professor of Anesthesiology, Perioperative and Pain Medicine (Department Research)
Current Research and Scholarly InterestsThe laboratory develops and uses state of the art genomic methods to identify genetic factors affecting disease susceptibility, and to translate these findings into new treatments. We have developed a more efficient method for performing mouse genetic analysis, which has been used to analyze the genetic basis for 16 different biomedical traits. We are developing novel methods, and have developed a novel experimental platform that replaces mouse liver with functioning human liver tissue.
-
Jinghong Penny Peng
Clinical Instructor, Radiation Oncology - Radiation Physics
Current Research and Scholarly Interests1. IMRT Treatment planning
2. IGRT Radiation Therapy
3. Real time prostate implant
4. 4D CT and Respiratory Gating Radiation Therapy
5. HDR for breast cancer and GYN cancer
6. Xoft Electronic Brachytherapy -
Michael Penn
Teresa Hihn Moore Professor of Religious Studies and Professor, by courtesy, of Classics
BioMichael Penn, the Teresa Hihn Moore Professor of Religious Studies, is a specialist in the history of early Christianity with a particular focus on middle eastern Christians who wrote in the Aramaic dialect of Syriac.
Professor Penn’s first book, Kissing Christians: Ritual and Community in the Late Ancient Church, was published in 2005 by the University of Pennsylvania Press. In 2015 he published two books on Christian-Muslim relations: Envisioning Islam: Syriac Christians in the Early Muslim World (University of Pennsylvania Press) and When Christians First Met Muslims: A Source Book of the Earliest Syriac Writings on Islam (University of California Press). For these projects Professor Penn has received awards from the John Simon Guggenheim Foundation, the American Council for Learned Societies, the National Endowment for the Humanities, the National Humanities Center, the Institute for the Study of the Ancient World, the British Academy, the American Philosophical Association, the American Academy of Religion, and the Wabash Center for Teaching and Learning.
Professor Penn is currently working on an Andrew Mellon Foundation funded collaboration that uses recent advances in the computerized analysis of handwriting to help analyze ancient Aramaic manuscripts. In addition to this work in the digital humanities, Professor Penn has begun several related projects that focus on the history of Syriac Christianity and the manuscripts they produced.
Before joining Stanford, Professor Penn was on the faculty of Mount Holyoke College. He has also taught at Brandeis University, Haverford College, Bryn Mawr College, and Duke University. He has additional experience as a secondary school teacher, including six years as the director of forensics at Durham Academy High School, where he ran a nationally competitive policy debate team. Professor Penn has also held research positions at Apple Computers, the Weizmann Institute (Israel), the Palo Alto Veterans Hospital, and Ames Research Center, NASA.
Ph.D. (Religion) Duke University (1999)
A.B. (Molecular Biology) Princeton University (1993) -
Bissera Pentcheva
Victoria and Roger Sant Professor of Art and Professor, by courtesy, of Classics
BioBissera Pentcheva's work focuses on Byzantium and the medieval Mediterranean, more specifically aesthetics, phenomenology, and acoustics. Her most recent book Hagia Sophia: Sound, Space and Spirit in Byzantium (Penn State University Press 2017) explores the interconnection among acoutsics, architecture, and liturgical rite. She has also edited, Aural Architecture in Byzantium: Music, Acoustics and Ritual (Ashgate, 2017). Pentcheva has published another two books with Pennsylvania State University Press: Icons and Power: The Mother of God in Byzantium, 2006 that won the John Nicholas Brown prize form the Medieval Academy of America in 2010 and The Sensual Icon: Space, Ritual, and the Senses in Byzantium, 2010. She has held a number of prestigious fellowships among them: J. S Guggenheim, American Academy of Rome, Wissenschaftskolleg zu Berlin, Mellon New Directions Fellowship for the study of Classical Arabic, Alexander von Humboldt (Germany), Onassis Foundation (Greece), Dumbarton Oaks, and Columbia University's Mellon Post-doctoral fellowship. Her work has been published at the Art Bulletin, Speculum, Gesta, and Res. Anthropology and Aesthetics, and Convivium.
-
Alex P Pentland
Center Fellow at the Stanford Institute for Human-Centered AI
BioAlex “Sandy” Pentland is HAI Center Fellow and faculty lead for digital society at Stanford HAI and Digital Economy Lab, He is Toshiba Professor at MIT, member of US National Academies, Advisor to Abu Dhabi Investment Authority Lab, and formerly advisory board member at UN Secretary General’s office, Google, ATT, Telefonica, and elsewhere. Spin-off companies and open source systems from his lab manage authentication of most digital transactions in the world, media for roughly 1B people in far east, and health resources for roughly 0.5B people in the indopacific. His current focus is on problems and opportunities in using AI to improve our social institutions.
-
Jon-Paul Pepper, MD
Associate Professor of Otolaryngology - Head & Neck Surgery (OHNS)
Current Research and Scholarly InterestsFacial paralysis is a debilitating condition that affects thousands of people. Despite excellent surgical technique, we are currently limited by the regenerative capacity of the body. The mission of our research is to identify new treatments that improve current facial paralysis treatments. We do this by exploring the regenerative cues that the body uses to restore tissue after nerve injury, in particular through pathways of neurogenesis and nerve repair in small mammals.
-
Jack Percelay
Clinical Professor, Pediatrics
BioJack Percelay has a 25+ year career in pediatric hospital medicine, beginning before the term hospitalist was invented when he started as an "in-house pediatrician in 1991 at several Bay Area hospitals after a brief career as a civilian primary care pediatrician at local and international US military bases. He has spent the majority of his career in community hospitals where his practice has run the gamut from the general pediatric ward and emergency room, to the PICU and intensive care nurseries, delivery room, and specialized neurologic and neurosurgical units. His work has taken him from San Francisco to New York City with brief stints in Hawaii. In 2015 he moved to Seattle Children's Hospital where he was an Associate Division Chief of Hospital Medicine, and in 2018 returned to the Bay Area joining the Stanford faculty.
He served as the founding chair of the AAP Section on Hospital Medicine, and has also served as the Chair of the AAP Committee on Hospital Care. He served for seven years as the pediatric board member for the Society of Hospital Medicine and has been recognized as a Master of Hospital Medicine by SHM. Additionally, he was an inaugural board member of the American Board of Pediatrics Pediatric Hospital Medicine Subspecialty Board. Areas of interest include pediatric hospital medicine systems of care, patient and family-centered care, BRUEs, billing and coding, and hospitalist roles in the PICU. -
Addie Peretz
Clinical Associate Professor, Adult Neurology
Current Research and Scholarly InterestsDr. Peretz's research interests include understanding the biological underpinnings of migraine and chronic daily headaches. She also participates in clinical trials of new headache treatments.
-
Felipe De Jesus Perez
Clinical Associate Professor, Anesthesiology, Perioperative and Pain Medicine
BioFelipe D. Perez is a Clinical Associate Professor who is board-certified as an Anesthesiologist and as a Pediatric Anesthesiologist. He is the Assistant Dean for Diversity in Medical Student Education in the Office of Diversity in Medical Education (ODME) at Stanford University School of Medicine. He was raised in an immigrant working class neighborhood of Long Beach, CA. After receiving his Bachelors at Stanford he dedicated three years to public health policy where he worked for local, state, and national levels of government. He worked for Congressman Henry Waxman, Assemblymember Hector De La Torre, and Senator Alex Padilla, on laws such as preventing homelessness and having restaurants post caloric information on their menus. He returned to Stanford University for his Medical Degree and stayed for residency, pediatric anesthesiology fellowship, and was hired on as faculty at both the Lucile Packard Children's Hospital and Stanford Hospital. He served as the Chair of the Legislative Affairs Committee for the California Society of Anesthesiologists (CSA) 2021 to 2023.He is a Vice Chair in the Department of Anesthesiology and leads the Office of Community Engagement (OCE). He founded CSA's Justice, Equity, Diversity, and Inclusion (JEDI) Committee, and has served in the past as the communication chair for the national Society for Pediatric Anesthesia (SPA) DEI Committee.
