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  • 1990-1994  (3)
  • 13.60.Rj  (1)
  • Ambulatory measurement  (1)
  • Argyrophilic inclusion  (1)
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Years
  • 1990-1994  (3)
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Argyrophilic ubiquitinated cytoplasmic inclusions of Leu-7-positive glial cells in olivopontocerebellar atrophy (multiple system atrophy) (1991)
    Springer
    Acta neuropathologica 82 (1991), S. 488-493 
    Details
    ISSN: 1432-0533
    Keywords: Olivopontocerebellar atrophy ; Oligodendroglia ; Argyrophilic inclusion ; Ubiquitin ; Leu-7
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We described cytoplasmic inclusions in glial cells in 18 patients with olivopontocerebellar atrophy (OPCA) (multiple system atrophy, MSA). These glial inclusions showed intense argyrophilia with modified Bielschowsky's and Bodian's silver impregnation techniques, and were observed in the pons, cerebellar white matter, midbrain, medulla oblongata and basal ganglia, as well as cerebral white matter and spinal cord. None of the 54 control cases had glial argyrophilic inclusions. Immunohistochemically, these inclusions were intensely labeled by anti-ubiquitin antibody. Some of them reacted with an antibody to Rosenthal fiber (RF) protein. The cytoplasm of ubiquitinated inclusion-bearing glial cells was immunostained by anti-Leu-7 antibody, but not by anti-GFAP antibody. Ultrastructurally, the glial inclusions were composed primarily of approximately 24- to 40-nm fibrils, which were coated with osmiophilic granular material along their length in longitudinal section. These fibrils appeared as annuli in cross section. Often, a central granule approximately 5 nm in diameter was seen in the lucent lumen of a cross-sectioned fibril. The granule-coated fibrils were not seen in the glial filament-containing astrocytes. Electron microscopic examination of silver-impregnated specimens revealed that the granule-coated fibrils had strong affinity for silver. Immunoelectron microscopy using the indirect immunoperoxidase techniques with antibodies to ubiquitin and RF protein revealed that the electron-dense reaction products respective to both were located on constituents of glial inclusions. Our observation that Leu-7-positive glial cells, mainly oligodendroglial cells, had argyrophilic ubiquitinated inclusions may be of significance for the evaluation of the pathology of OPCA(MSA).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00293383
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The reaction γ +d → π+ + π− +p + n between 570 and 850 MeV andΔ ++ Δ − production (1992)
    Springer
    The European physical journal 344 (1992), S. 335-344 
    Details
    ISSN: 1434-601X
    Keywords: 25.20.Lj ; 13.60.Rj ; 14.20.Gk
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The reaction γ+d → π++π− +p + n has been measured in a kinematically complete way at incident photon energies from 570 to 850 MeV in steps of 40 MeV. From detailed comparison of measured data with results of event simulations, it is concluded that three different mechanisms, the quasi-free, double-delta and phase space productions, contribute to the reaction. Each of the cross sections corresponding to these mechanisms is determined separately.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01303029
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Ambulatory monitoring of indirect beat-to-beat arterial pressure in human fingers by a volume-compensation method (1991)
    Springer
    Medical & biological engineering & computing 29 (1991), S. 55-62 
    Details
    ISSN: 1741-0444
    Keywords: Ambulatory measurement ; Digital artery ; Indirect sphygmomanometry ; Instantaneous arterial pressure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract Using a volume-compensation technique, a portable device has been designed for the indirect measurement of beat-to-beat arterial pressure and its waveforms in the basal phalanx of fingers of ambulatory subjects. The device consists of (1) a transmission infra-red photoelectric plethysmograph (TIPP) to detect the variation of arterial volume, (2) a pneumatic cuff with an actuator, (3) a servosystem to control the cuff pressure, and (4) a stereo cassette tape recorder. Arterial pressure was determined from the cuff pressure which was controlled by the servosystem so as to maintain the arterial volume constant at the ‘vascular unloading’ state. This device is equipped with a compensator for any hydrostatic pressure difference between the heart and finger. Thus, the blood pressure at heart level can be obtained for any finger height. The total weight of the device was 1·6kg. Blood pressure changes during walking, jogging, jumping, and exercises such as side-stepping, Master's two-step test and car driving, have been successfully recorded.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02446296
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    Paper (German National Licenses)
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