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  • 1
    ISSN: 1432-0533
    Keywords: Demyelination ; Myelinolysis ; Central pontine myelinolysis ; Pontine and extrapontine myelinolysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Three autopsy cases of pontine and extrapontine myelinolysis are reported; one, a malignant lymphoma in a man of 66 years, the other an alcoholic liver cirrhosis in a man of 54 years, and an esophageal cancer in a woman of 68 years who presented only with extrapontine myelinolysis, but lacked central pontine myelinolysis (CPM). The extrapontine lesions in these three cases revealed a characteristic and common localization; they occurred mostly (1) in the bundles of myelinated fibers in the gray matter, such as in the pons, basal ganglia, and thalamus; and (2) in the white matter surrounded by massive gray matter, such as the deeper layers of the cortex and subjacent white matter of the crowns and sides of the cerebral gyri, the white matter of the cerebellar folia and internal, external, and extreme capsules. Therefore, the third patient was classified as a subtype of pontine and extrapontine myelinolysis, which may be called the “extrapontine form” because of absence of CPM. Moreover, bilateral demyelination of the mamillary body was found in all cases, and laminar cortical astrocytosis and necrosis similar to Morel's cortical laminar sclerosis in two of them. From the clinical and pathologic findings, the significance of the changed osmolarity of the blood as a cause and the importance of some specificity of the tissue architecture in the pathogenesis are discussed.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    International journal of infrared and millimeter waves 20 (1999), S. 617-622 
    ISSN: 1572-9559
    Keywords: antiferromagnetic resonance ; MnF2 ; millimeter ; submillimeter ; vector network analyzer ; superconducting magnet
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Antiferromagnetic resonance (AFMR) measurements on a well characterized single crystal sample of MnF2 have been performed using various kinds of millimeter and submillimeter sources up to 570 GHz and a superconducting magnet up to 20 T. All the AFMR modes predicted from the theory have been observed. We report a complete frequency-field chart for these AFMR modes.
    Type of Medium: Electronic Resource
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