D
David N. Levin
Researcher at University of Chicago
Publications - 85
Citations - 4134
David N. Levin is an academic researcher from University of Chicago. The author has contributed to research in topics: Iterative reconstruction & Image resolution. The author has an hindex of 31, co-authored 85 publications receiving 3995 citations. Previous affiliations of David N. Levin include Brain Research Foundation & University of California, Los Angeles.
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Derivation of gauge invariance from high-energy unitarity bounds on the S matrix
TL;DR: In this article, a systematic search is made for all renormalizable theories of heavy vector bosons and it is proved that any such theory is tree-unitary if and only if it is equivalent under a point transformation to a spontaneously broken gauge theory, possibly modified by the addition of mass terms for vectors associated with invariant Abelian subgroups.
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The spatial location of EEG electrodes: locating the best-fitting sphere relative to cortical anatomy
Vernon L. Towle,Vernon L. Towle,Jose D. Bolanos,Jose D. Bolanos,Diane Suarez,Diane Suarez,Kim K. Tan,Robert Grzeszczuk,David N. Levin,Raif Çakmur,Samuel A. Frank,Samuel A. Frank,Jean-Paul Spire,Jean-Paul Spire +13 more
TL;DR: The melding of EEG electrode location information with brain anatomy provides an empirical basis for associating hypothetical equivalent dipole locations with their anatomical substrates.
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Uniqueness of Spontaneously Broken Gauge Theories.
TL;DR: In this paper, the authors made a systematic search for theories of interacting heavy vector mesons which have unitarily bound trees and found that the only such theories are spontaneously broken gauge theories.
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Retrospective geometric correlation of MR, CT, and PET images.
TL;DR: A new technique for quantitative geometric correlation of magnetic resonance imaging, computed tomographic, and positron emission tomographic studies of the brain makes it possible to create integrated multimodality images by mapping features from one image onto an image obtained with another modality.
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The brain: integrated three-dimensional display of MR and PET images.
David N. Levin,Xiaoping Hu,K K Tan,Simranjit Galhotra,Charles A. Pelizzari,G T Chen,Robert N. Beck,C T Chen,Malcolm Cooper,John F. Mullan +9 more
TL;DR: Three patients with intractable epilepsy, two with brain tumors, and one with encephalitis were imaged with magnetic resonance (MR) and positron emission tomography and the predicted relationships were confirmed intraoperatively by means of inspection of the brain and electroencephalography.