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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Comparative clinical pathology 4 (1994), S. 96-101 
    ISSN: 1433-2981
    Keywords: B-cells ; BLV-p24 capsid protein ; Bovine leukaemia virus ; Immunocytochemistry ; Persistent lymphocytosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract This study used a combination of single antigen immunoperoxidase staining for bovine leukaemia virus (BLV) p24 capsid antigen and IgM to enumerate the peripheral blood mononuclear cells (PBMCs) infected with BLV and the number of B-cells, respectively. A significant relationship was found between the number of BLV-infected PBMCs and the number of circulating B-cells. A model was created that predicted the number of circulating B-cells using the number of BLV-infected PBMCs. These data also show that the percentage of B-cells in PBMCs preparations is not affected by 24 h of in vitro culture when LPS is added to the culture medium. Double antigen labelling showed that the majority of circulating B-cells were infected with BLV in some BLV-seropositive cattle that were not persistently lymphocytotic.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Medical & biological engineering & computing 15 (1977), S. 98-105 
    ISSN: 1741-0444
    Keywords: Carbon dioxide ; Oxygen ; Diffusion ; Blood
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Description / Table of Contents: Sommaire Dans le présent article, les solutions numériques des équations de diffusion ont été obtenues pour des cas de diffusion de l’oxygène et du bioxyde de carbone dans le sang s’écoulant entre deux surfaces poreuses parallèles. On suppose qu’à l’entrée du canal, les profils de concentration sont uniformes et que le profil de vitesse est totalement développé. Les caractéristiques rhéologiques du sang sont décrites par l’équation de Casson. Les calculs sont réalisés en employant la procédure de la différence explicite finie. Les résultats ont été obtenus pour une large gamme de chiffres de rendement, de tensions d’entrée partielles, de niveaux d’acidité (pH), de résistances des membranes et de concentrations en hémoglobine.
    Abstract: Zusammenfassung In der vorliegenden Arbeit wurden die numerischen Lösungen von Diffusionsgleichungen für die Fälle von Sauerstoff und Kohlendioxid erhalten, die durch Blut diffundieren, das zwischen zwei porösen parallelen Ebenen fließt. Es wird angenommen, daß am Eingang zum Kanal die Konzentrationsprofile gleichförmig sind und das Geschwindigkeitsprofil voll entwickelt ist. Die rheologischen Eigenschaften von Blut werden durch die Casson’s sche Gleichung bescrieben. Die Berechnungen werden mit Hilfe des Vorwärtsschrittsverfahrens der expliziten endlichen Differenz durchgeführt. Die Resultate wurden für einen weiten Bereich von Ertragszahlen, Teileingangsdrucken, pH-Zahlen, Membranwiderständen und Hämoglobinkonzentrationen erhalten.
    Notes: Abstract The numerical solutions of diffusion equations have been obtained for the cases of oxygen and carbon dioxide diffusing through blood flowing between two porous parallel planes. It is assumed that at the entrance to the channel the concentration profiles are uniform and the velocity profile is fully developed. The rheological characteristics of blood are described by the Casson equation. The computations have been made employing the explicit finite-difference forward-marching procedure. The results have been obtained for a wide range of yield numbers, inlet partial pressures, pH, membrane resistances and haemoglobin concentrations.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1434-6079
    Keywords: 34.50.Fa ; 34.80.Kw
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Double differential cross sections for the emission of Delta-electrons have been measured in fast uranium-rare gas collisions. The well-known Binary Encounter peak reveals unexpected structures for certain observation angles and its intensity increases towards smaller angles, which is in contradiction to results and scaling laws obtained by experiments with light ion impact. The observed dependencies are fairly well described by recent calculations in the framework of IA and CTMC. From systematic experimental as well as theoretical studies we can derive that the potential of the partially stripped projectile ion gives rise to rainbow and glory scattering of the target electron in the field of the projectile. The rainbow scattering is observed in the laboratory frame as pronounced interference structures, whereas the glory scattering is responsible for the steep increase of the cross sections for binary-encounter electrons towards small laboratory ejection angles. The observed effects have a dramatic influence on the commonq 2 scaling laws derived from experiments with light ions. Furthermore, since the binary-encounter electrons ejected at forward angles have approximately twice the projectile velocity, these new phenomena have an important influence on the electronic stopping power of heavy ions and therefore have to be taken into account for the investigation of radiation damage by these ions e.g. in biological matter.
    Type of Medium: Electronic Resource
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