Search Results - (Author, Cooperation:J. Troyer)

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  1. 1
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    American Association for the Advancement of Science (AAAS)
    Published 2014
    Staff View
    Publication Date:
    2014-06-21
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Africa ; Disease/*genetics ; England ; Genetics, Medical/trends ; Genome-Wide Association Study/*trends ; Genomics/*trends ; Health ; Humans ; National Institutes of Health (U.S.) ; United States
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Staff View
    ISSN:
    0375-9601
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0375-9601(80)90126-7

    Articles: DFG German National Licenses
  3. 3
    Troyer, J. Robert

    New York, NY [u.a.] : Wiley-Blackwell
    Published 1961
    Staff View
    ISSN:
    0003-276X
    Keywords:
    Life and Medical Sciences ; Cell & Developmental Biology
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Medicine
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1002/ar.1091390407

    Articles: DFG German National Licenses
  4. 4
    Troyer, J. Robert

    New York, NY [u.a.] : Wiley-Blackwell
    Published 1965
    Staff View
    ISSN:
    0003-276X
    Keywords:
    Life and Medical Sciences ; Cell & Developmental Biology
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Medicine
    Notes:
    The morphology of the hypothalamo-hypophyseal tract of 35 hibernating bats (Myotis lucifugus lucifugus) was studied in chrome-alum-hematoxylin-phloxine-stained serial coronal and sagittal sections. Vinyl acetate and wax-plate reconstructions also aided in describing the two neurosecretory hypothalamic nuclei of this system. The most prominently defined nucleus, the supraoptic, consisted of a smaller portion rostral to the optic tract that was tenuously connected to a larger caudal portion. The probability that some of the posteriorly located cells of the caudal portion represent other hypothalamic nuclei is discussed. The shape and location of the paraventricular nucleus was more difficult to determine. Although the neurosecretory cells of this nucleus were similar in their irregular or eliptical shape to those of the supraoptic nucleus, the majority of the paraventricular cells were smaller and had less of an affinity for the chrome-alum-hematoxylin stain.The majority of CHP-positive axons originating in the supraoptic nucleus converged toward the median eminence and terminated in the pars nervosa. Most of the axons from the paraventricular nucleus coursed laterally toward the supraoptic nucleus where they followed the pathway described from this nucleus. The localization of CHP-positive material in the neurohypophysis is presented. Comparisons were made between the morphology of this system in the hibernating bat and that of other species of mammals reported in the literature.
    Additional Material:
    1 Ill.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1002/ar.1091510108

    Articles: DFG German National Licenses
  5. 5
    Troyer, J. Robert

    New York, NY [u.a.] : Wiley-Blackwell
    Published 1968
    Staff View
    ISSN:
    0003-276X
    Keywords:
    Life and Medical Sciences ; Cell & Developmental Biology
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Medicine
    Notes:
    Neurosecretory material in the supraoptico-hypophyseal tract of 151 hibernating and summer bats (Myotis lucifugus lucifugus) was studied in chromealum-hematoxylin-phloxine-stained serial sagittal sections. Seasonal variations of neurosecretory content throughout the hibernating period (mid-September through mid-May) and “active” summer period (June to mid-September) were observed and the staining density of the neurosecretory material in the supraoptic nucleus, infundibular stem and pars nervosa was “quantitated” visually. Cell counts and measurements also were made to determine if cell number and size changes accompanied seasonal changes in neurosecretory content.A significantly greater staining density of neurosecretory material in the supraoptico-hypophyseal tract of the hibernating bats, than in the “active” animals was observed. These differences were always greater in the infundibular stem than in the supraoptic nucleus and pars nervosa. Although there was no correlation between seasonal activity and the total number of neurosecretory cells in each brain, there was always a smaller number of dark-staining cells in the “active” bats than in those that were hibernating. Nucleocytoplasmic ratios of hibernating bats were below those of the active animals. These resulted from smaller nuclear and larger cytoplasmic sizes during hibernation than in the summer. Nucleolar sizes, however, were slightly greater in the hibernating bats than in the active animals. The significance of these results in terms of seasonal activity is discussed.
    Additional Material:
    2 Ill.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1002/ar.1091620403

    Articles: DFG German National Licenses
  6. 6
    Troyer, J. Robert

    Philadelphia : Wiley-Blackwell
    Published 1959
    Staff View
    ISSN:
    0095-9898
    Keywords:
    Life and Medical Sciences ; Cell & Developmental Biology
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Biology
    Medicine
    Additional Material:
    2 Ill.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1002/jcp.1030540104

    Articles: DFG German National Licenses