Stanford University
Showing 34,221-34,240 of 34,929 Results
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Richard Zare
Marguerite Blake Wilbur Professor of Natural Science and Professor, by courtesy, of Physics
Current Research and Scholarly InterestsMy research group is exploring a variety of topics that range from the basic understanding of chemical reaction dynamics to the nature of the chemical contents of single cells.
Under thermal conditions nature seems to hide the details of how elementary reactions occur through a series of averages over reagent velocity, internal energy, impact parameter, and orientation. To discover the effects of these variables on reactivity, it is necessary to carry out studies of chemical reactions far from equilibrium in which the states of the reactants are more sharply restricted and can be varied in a controlled manner. My research group is attempting to meet this tough experimental challenge through a number of laser techniques that prepare reactants in specific quantum states and probe the quantum state distributions of the resulting products. It is our belief that such state-to-state information gives the deepest insight into the forces that operate in the breaking of old bonds and the making of new ones.
Space does not permit a full description of these projects, and I earnestly invite correspondence. The following examples are representative:
The simplest of all neutral bimolecular reactions is the exchange reaction H H2 -> H2 H. We are studying this system and various isotopic cousins using a tunable UV laser pulse to photodissociate HBr (DBr) and hence create fast H (D) atoms of known translational energy in the presence of H2 and/or D2 and using a laser multiphoton ionization time-of-flight mass spectrometer to detect the nascent molecular products in a quantum-state-specific manner by means of an imaging technique. It is expected that these product state distributions will provide a key test of the adequacy of various advanced theoretical schemes for modeling this reaction.
Analytical efforts involve the use of capillary zone electrophoresis, two-step laser desorption laser multiphoton ionization mass spectrometry, cavity ring-down spectroscopy, and Hadamard transform time-of-flight mass spectrometry. We believe these methods can revolutionize trace analysis, particularly of biomolecules in cells. -
Christopher K. Zarins
Walter Clifford Chidester and Elsa Rooney Chidester Professor of Surgery, Emeritus
Current Research and Scholarly InterestsHemodynamic factors in atherosclerosis, pathogenesis of, aortic aneurysms, carotid plaque localization and complication, anastomotic intimal hyperplasia, vascular biology of artery wall, computational fluid dynamics as applied to blood flow and vascular disease.
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Justin M. Zaslavsky, MD
Affiliate, Department Funds
Resident in PediatricsBioJustin is a Resident Physician in Pediatrics at Stanford Medicine. He earned his medical degree from the George Washington University School of Medicine and Health Sciences, following his undergraduate studies at Tufts University, where he majored in Community Health and minored in Philosophy. His clinical and professional interests include pediatric emergency medicine, pediatric critical care, correctional health, and substance use disorders.
In the years between his undergraduate studies and medical school, he served as a New York City Urban Fellow working for New York City Emergency Management. He then transitioned into clinical research, serving as a research manager at Northwestern University Lurie Children's Hospital and New York University, leading large-scale clinical trials across hospital systems.
Justin is highly dedicated to using research and technology to drive advocacy and sustainable policies that serve his patients. Through patient-centered advocacy, interdisciplinary collaboration, and culturally responsive leadership, Justin is committed to advancing health equity.
Outside of medicine, Justin enjoys Wordle, trail running, skiing, and mountain biking. -
Bonnie Michelle Zavon
Meeting Planner, Distinguished Careers Institute
Current Role at StanfordOutreach and Meeting Planner for the Stanford Distinguished Careers Institute.
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Kristina Zdantsevich
Postdoctoral Scholar, Cardiovascular Institute
BioKristina Zdantsevich, MD, is a physician-scientist and postdoctoral fellow in Joseph Wu's laboratory at the Stanford Cardiovascular Institute, where she uses induced pluripotent stem cells to model cardiovascular disease.
Kristina earned her MD from Belarusian State Medical University, graduating top of her class. She completed residency in Cardiovascular Anesthesiology and Intensive Care Medicine at the Republican Scientific and Practical Center "Cardiology" in Minsk, the country's leading cardiac referral center. Her clinical work covered high-acuity cardiovascular care, from cardiogenic shock and acute coronary syndromes to perioperative management of coronary bypass, valve, and aortic surgery. In parallel, she practiced general anesthesia and critical care at Minsk Central District Clinical Hospital, including dedicated COVID-19 intensive care from March 2020 through May 2022. For her leadership during the pandemic, she received an award from the Belarusian Minister of Health, given to roughly 1 in 500 physicians nationwide.
She serves as Education Lead for iWISH Talks (Inspiring Women in Science and Healthcare), a global community of more than 500 early-career scientists, and the team received the Stanford Cardiovascular Institute Recognition Award. Outside the lab, she bakes sourdough, swims, practices Pilates, visits museums, and follows AI biology agents. -
Yanjie Ze
Ph.D. Student in Computer Science, admitted Autumn 2024
BioYanjie Ze is a PhD student of Computer Science at Stanford University. His research centers around building intelligence for general-purpose robots. He has published several papers with Oral Presentation/Spotlight on top-tier conferences such as RSS, CoRL, IROS, and ICLR. His personal website: https://yanjieze.com
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Howard Zebker
Kwoh Ting Li Professor in the School of Engineering and Professor of Geophysics
Current Research and Scholarly InterestsResearch
My students and I study the surfaces of Earth and planets using radar remote sensing methods. Our specialization is interferometric radar, or InSAR. InSAR is a technique to measure mm-scale surface deformation at fine resolution over wide areas, and much of our work follows from applying this technique to the study of earthquakes, volcanoes, and human-induced subsidence. We also address global environmental problems by tracking the movement of ice in the polar regions. whose ice mass balance affects sea level rise and global climate. We participate in NASA space missions such as Cassini, in which we now are examining the largest moon of Saturn, Titan, to try and deduce its composition and evolution. Our work includes experimental observation and modeling the measurements to best understand processes affecting the Earth and solar system. We use data acquired by spaceborne satellites and by large, ground-based radar telescopes to support our research.
Teaching
I teach courses related to remote sensing methods and applications, and how these methods can be used to study the world around us. At the undergraduate level, these include introductory remote sensing uses of the full electromagnetic spectrum to characterize Earth and planetary surfaces and atmospheres, and methods of digital image processing. I also teach a freshman and sophomore seminar course on natural hazards. At the graduate level, the courses are more specialized, including the math and physics of two-dimensional imaging systems, plus detailed ourses on imaging radar systems for geophysical applications.
Professional Activities
InSAR Review Board, NASA Jet Propulsion Laboratory (2006-present); editorial board, IEEE Proceedings (2005-present); NRC Earth Science and Applications from Space Panel on Solid Earth Hazards, Resources, and Dynamics (2005-present); Chair, Western North America InSAR (WInSAR) Consortium (2004-06); organizing committee, NASA/NSF/USGS InSAR working group; International Union of Radioscience (URSI) Board of Experts for Medal Evaluations (2004-05); National Astronomy and Ionospheric Center, Arecibo Observatory, Visiting Committee, (2002-04; chair, 2003-04); NASA Alaska SAR Facility users working group (2000-present); associate editor, IEEE Transactions on Geoscience and Remote Sensing (1998-present); fellow, IEEE (1998)
