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Griffith, O. Hayes H.
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Recent Submissions
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(Journal of Chemical Physics, 1965-10-15)
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(Proceedings of the National Academy of Sciences, 1995-11)Conversion of the cellular isoform of prion protein (PrPc) into the scrapie isoform (PrPSc) involves an increase in the /3-sheet content, diminished solubility, and resistance to proteolytic digestion. Transgenetic ...
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(Review of Scientific Instruments, 1994-10)A review of electron optical bench literature is presented, and the designs of two optical benches used by the authors are described. One bench was designed for testing individual electrostatic electron lenses and in-line ...
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Phorbol ester-induced actin cytoskeletal reorganization requires a heavy metal ion, probably Zn2+. (Cell Regulation, 1991-12)The cell-permeant heavy metal chelator N,N,N',Ntetrakis( 2-pyridylmethyl)ethylenediamine (TPEN) was found to counteract phorbol ester-induced actin reorganization in PTK2 and Swiss 3T3 cells. By us ing fluorescence and ...
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(Methods In Enzymology, 1991)
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(Proceedings of the National Academy of Sciences, 1989-03)Biological surfaces emit electrons when subjected to UV light. This emission is increased greatly after exposure to cesium vapor. Increases from 2 to 3 orders of magnitude are observed, depending on the biochemicals ...
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(Magnetic Resonance Review, 1988)
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(Proceedings of the National Academy of Sciences, 1983-07)Pt K2 rat kangaroo epithelial cells and Rat-I fibroblasts were grown on conductive glass discs, fixed, and permeabilized, and the cytoskeletal elements actin, keratin , and vimentin were visualized by indirect ...
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(Scanning Electron Microscopy, 1981)A photoelectron microscope (photoemission electron microscope) has been designed and built for the study of organic and biological samples. The microscope is an oil-free stainless steel high vacuum instrument pumped ...
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(Proceedings of the National Academy of Sciences, 1979-09)The absolute fhotoelectron quantum yield spectra for benzo[ a ]pyrene an dimethylbenzanthracene are present~d in th~ wavelength range 180-230 nm. These polycyclic aromatic carcmogens have photoelectron quantum yields ...
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(Journal of Reproductive Fertility, 1985)Photoelectron images of mammalian spermatozoa were obtained by subjecting the specimens to u.v.-irradiation and focussing the emitted electrons by electron optics (photoelectron microscopy). Guinea-pig, hamster and human ...
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(Annual Review of Biophysics and Biophysical Chemistry, 1985)
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(Proceedings of the National Academy of Sciences, 1985-01)The electron optical analog of immunofluo rescence microscopy combines three developments: (i) photoelectron microscopy to produce a high-resolution image of ex posed components of the cell, (jQ site-specific antibodies, ...
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(Scanning Electron Microscopy, 1984-05-07)The photoelectric effect provides the basis for an imaging technique useful for the study of biological surfaces. The photoelectron microscope (PEM) employs a UV lamp to photoeject electrons from the specimen surface. ...
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(Society of Photo-Optical Instrumentation Engineers, 1976)Photoelectron microscopy is a surface technique which provides topographical infor mation using the photoelectric effect as a basis for contrast. Progress in the biolo gical applications of this technique is briefly ...
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(Proceedings of the Electron Microscopy Society of America, 1976)
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(Journal of Applied Physics, 1976-03)Photoelectron measurements of thin organic films deposited on a metal substrate may contain information from deep within the sample, derived from reflected ultraviolet light. This effect depends on the reflectivity of ...
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(Annual Proceedings of the Electron Microscopy Society of America, 1975)