School of Humanities and Sciences
Showing 241-250 of 347 Results
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Mark Granovetter
Joan B. Ford Professor
BioMark Granovetter's main interest is in the way people, social networks and social institutions interact and shape one another. He has written extensively on this subject, including his two most widely cited articles "The Strength of Weak Ties" (1973) and "Economic Action and Social Structure: The Problem of Embeddedness" (1985). In recent years, his focus has been on the social foundations of the economy, and he is working on a book entitled Society and Economy, to be published by Harvard University Press in two volumes. The first volume, Society and Economy: Framework and Principles,appeared in 2017. It is broadly theoretical, treating the role in the economy of social networks, norms, culture, trust, power, and social institutions. The second volume will use this framework to illuminate the study of such important topics as corruption, corporate governance, organizational form and the emergence of new industries such as the American electricity industry and the high-tech industry of Silicon Valley.
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Giorgio Gratta
Ray Lyman Wilbur Professor
BioGiorgio Gratta is a Professor of Physics at Stanford university where he is currently serving as chair of the Physics Department. 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, made observations in the area of neutrino oscillations, and with one of them was first in reporting oscillations using artificial neutrinos and establishing 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. At a very different energy scale, Gratta and his group substantially advanced the techniques to detect ultra-high energy neutrinos in cosmic radiation, using acoustic signals in large bodies of water.
In more recent times, Gratta has led the development of liquid Xenon detectors in the search for the neutrinoless double beta decay, a 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 parallel development, 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. -
M. Elizabeth Grávalos
Postdoctoral Scholar, Anthropology
BioDr. Grávalos is an anthropological archaeologist with research interests at the intersection of materiality, landscape, and craft production. Her work centers on the politics, sociality, and ontology of making and using ceramic and textile objects. She is interested in how artisans embody, share, and contest technological and landscape knowledge across generations and between communities. Dr. Grávalos's research is based in 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.
Since 2014, Dr. Grávalos has applied material science methods to the analysis of archaeological materials, including ceramic, glass, and stone. She specializes in laser ablation – inductively coupled plasma – mass spectrometry (LA-ICP-MS) and thin section petrography.
For more than a decade, Dr. Grávalos has directed and collaborated on several long-term, community-based archaeological fieldwork programs in Peru. The majority of this work takes place in the Ancash Department:
-Between 2017-2018, Dr. Grávalos co-directed the Proyecto de Investigación Arqueológica de Jecosh (PIAJ; Jecosh Archaeological Research Project) at the highland site of Jecosh with colleagues Lic. Denisse Herrera Rondan and Dr. Emily A. Sharp. Learn more about this collaborative project with the descendant community of Jecosh/Poccrac here: https://www.facebook.com/PIAJecosh.
-Since 2011, Dr. Grávalos has collaborated with the community-based, interdisciplinary research program of PIARA (piaraperu.org), focused primarily at the highland site of Hualcayán, where her work as a PI examines textiles and ceramics.
Dr. Grávalos's research has been funded by the National Science Foundation (DDRI-Archaeology), the Wenner-Gren Foundation, the Rust Family Foundation, the American Museum of Natural History, Dumbarton Oaks Research Library and Collection, the Field Museum of Natural History, the University of Illinois-Chicago, and Stanford University.
