Stanford University
Showing 1,301-1,320 of 1,859 Results
-
Philip Grant
Clinical Associate Professor, Medicine - Infectious Diseases
BioMy research focuses on antiretroviral therapy and complications of HIV including immune reconstitution inflammatory disease, osteoporosis, and cardiovascular disease.
-
Teodor Grantcharov, MD, PhD, FACS, FRCS (Glasg)
Professor of Surgery (General Surgery)
On Leave from 03/09/2026 To 06/30/2026BioDr. Teodor Grantcharov is a board-certified, fellowship-trained surgeon specializing in bariatric (weight loss) and minimally invasive surgery. He is also a clinical professor of surgery at Stanford University School of Medicine and associate chief quality officer for innovation and safety at Stanford Health Care.
As a surgeon, Dr. Grantcharov specializes in minimally invasive and bariatric surgery. He is an accomplished researcher and leader in the field of surgical innovation and patient safety. His work has made important contributions in curriculum design, assessments of competence, and impact of surgical performance on clinical outcomes. Dr. Grantcharov developed the surgical Black Box concept, designed to transform safety culture in medicine and introduce modern safety management systems in high-risk operating rooms.
Dr. Grantcharov has published more 220 articles in peer-reviewed journals and given more than 200 invited presentations in Europe and North and South America. He holds several patents and is the founder of Surgical Safety Technologies, Inc.—an academic startup that commercializes the Black Box Platform™. Dr. Grantcharov has received several prestigious honors and awards, including the Queen Elizabeth II Diamond Jubilee Medal for his contributions in clinical research and patient safety in Canada.
Dr. Grantcharov is a fellow of the American College of Surgeons. -
Giorgio Gratta
Ray Lyman Wilbur Professor
BioGiorgio Gratta is a Professor of Physics at Stanford university. Gratta is an experimentalist, with research interests in the broad area of the physics of fundamental particles and their interactions. While his career started with experiments at particle colliders, since at Stanford Gratta has tackled the study of neutrinos and gravity at the shortest distances.
With two landmark experiments using neutrinos produced by nuclear reactors, Gratta and collaborators investigated the phenomenon of neutrino flavor mixing, in one case reporting the first evidence for neutrino oscillations using artificial neutrinos. This established the finite nature of neutrino masses. The same experiment was also first to detect neutrinos from the interior of our planet, providing a new tool for the Earth sciences.
As a natural evolution from the discovery of neutrino oscillations, Gratta has led the development of liquid Xenon detectors in the search for the neutrinoless double beta decay, an exotic nuclear decay that, if observed, would change our understanding of the quantum nature of neutrinos and help explaining the asymmetry between matter and antimatter in the universe. Gratta is currently the scientific leader of one of the three very large experiments on the subject, world-wide.
In a rather different area of research, Gratta’s group is studying new long range interactions (or an anomalous behavior of gravity) at distances below 50 micrometers. This is achieved with an array of different techniques, from optical levitation of microscopic particles in vacuum, to the use of Mössbauer spectroscopy and, most recently, neutron scattering on nanostructured materials. -
Dita Gratzinger
Professor of Pathology
Current Research and Scholarly InterestsI have research interests in the interaction of normal and neoplastic hematolymphoid cells with the bone marrow. lymph node and spleen microenvironment and the interactions of these compartments with immune perturbation and dysregulation.
-
M. Elizabeth Grávalos
Assistant Professor of Anthropology
BioDr. Grávalos is an anthropological archaeologist that studies Indigenous Andean communities in the deep past, for whom we have no written records. She looks at Andean ways of making things—like ceramics, textiles, and cordage—to understand the sociopolitics that undergirded these making practices, including engagements with specific substances and landscapes. With theoretical foci on materiality, ontology, and social practice, this research asks: what are the political affordances of specific materials? How did materials bridge possibilities for political action? How did people’s engagements with specific landscapes and materials impact power dynamics, economies, and social identities? To think through these questions, her work bridges humanities and science perspectives, blending insights from anthropological theory and cultural geography with material science techniques.
Dr. Grávalos’s research is based in the Ancash Region of northern Peru, where her ongoing investigation into political geologies considers how geologic resources are culturally made and valued, and how categorizations and use of these geomaterials foment political dynamics among pre-Hispanic and present-day Andean communities.
Dr. Grávalos is trained as a field archaeologist and materials analysis specialist. Since 2009, she has participated in and directed research projects in Peru, the Bahamas, and the city of Chicago (USA). She is committed to collaboration with descendant communities and centers community-based methodologies in her research. Dr. Grávalos is also an expert in ceramic compositional analysis (LA-ICP-MS and thin section petrography) as well as textile analysis.
