Stanford University
Showing 23,811-23,820 of 34,972 Results
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Maryellen Petrich
Digital Preservation Analyst, LOCKSS Program
Current Role at StanfordMary-Ellen facilitates the digital preservation process for LOCKSS and CLOCKSS. She coordinates scheduling to ensure timely harvesting of digital content, aligning with project goals to preserve essential academic materials. In addition to monitoring and evaluating the quality of the preservation catalog, she implements quality control measures while testing and evaluating digital preservation software. Mary-Ellen collaborates with internal teams and external partners to address issues and enhance workflow. Through data analysis and reporting, she tracks preservation progress and identifies opportunities to improve digital preservation initiatives.
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Laura Petrikovic, PA-C
Affiliate, Surgery - Vascular Surgery
BioLead advanced practice provider (APP) for the Vascular Surgery division of CVH at Stanford Palo Alto campus. Experienced advanced practice provider (APP) with broad medical knowledge, including prior roles in Neurosurgery and Cardiovascular Surgery. Moved to California from Pennsylvania and began working for Stanford Vascular Surgery in April 2021. Previous affiliation with UPMC in Pittsburgh, PA.
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Claudia Katharina Petritsch
Associate Professor (Research) of Neurosurgery
Sr Res Scientist-Basic Life, Adult NeurologyCurrent Research and Scholarly InterestsThe Petritsch lab broadly investigates underlying causes for the intra-tumoral heterogeneity and immune suppression in brain tumors from a neuro-developmental perspective. Defective cell fate decisions fuel the intra-humoral heterogeneity and plasticity in human brain tumors and may contribute to immune suppression. We use patient-derived models as avatars to study how brain cells control the fate of their progeny, whereby we unravel novel points of vulnerabilities in brain tumor cells.
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Vahe Petrosian
Professor of Physics and of Applied Physics
BioHow do things evolve in the universe? How are particles accelerated in the universe?
Professor Petrosian’s research covers many topics in the broad area of theoretical astrophysics and cosmology, with a strong focus on high-energy astrophysical processes.
Cosmological studies deal with global properties of the universe, where the main focus is the understanding of the evolution of the universe at high redshifts, through studies of the evolutions of population of sources such as galaxies and quasars or active galactic nuclei, gamma-ray bursts, using new statistical techniques developed in collaboration with Prof. B. Efron of the Department of Statistics. Another area of research is the use of gravitational lensing in measuring mass in the universe.
High-energy astrophysics research involves interpretation of non-thermal astronomical sources where particles are accelerated to very high energies and emit various kinds of radiation. These processes occur on many scales and in all sorts of objects: in the magnetosphere of planets, in the interplanetary space, during solar and stellar flares, in the accretion disks and jets around stellar-size and super-massive black holes, at centers of galaxies, in gamma-ray bursts, in supernovae, and in the intra-cluster medium of clusters of galaxies. Plasma physics processes common in all these sources for acceleration of particles and their radiative signature is the main focus of the research here. -
Ed Petrossian
Clinical Professor, Cardiothoracic Surgery
Current Research and Scholarly InterestsDr. Petrossian has expertise in complex pediatric and congenital cardiovascular surgical repairs. He has published several journal articles and book chapters with an emphasis on the extracardiac conduit Fontan operation.
