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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Virchows Archiv 373 (1977), S. 303-309 
    ISSN: 1432-2307
    Keywords: Immunocytoma ; Malignant lymphoma, lymphoplasmacytoid ; Chronic lymphocytic leukemia ; Tissue mast cell count and distribution ; Differential diagnostic parameters in lymph node biopsies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The amount and distribution of tissue mast cells in the three subtypes of immunocytoma (IC) were studied in lymph nodes of 58 cases and compared with the findings on 34 cases of chronic lymphocytic leukemia (CLL). There were significantly more mast cells in the lymphoplasmacytic and lymphoplasmacytoid subtypes of IC than in CLL. The median mast cell count for the polymorphic subtype of IC was also greater than that for CLL; however, this difference was not statistically significant. Tissue mast cells were diffusely distributed in the lymph nodes in IC, whereas they were chiefly located in the sinus in CLL. Moreover, the cells themselves and their granules were generally larger in IC. Increase in the number and altered distribution of the tissue mast cells in histological sections are therefore diagnostic aids for distinguishing IC from CLL.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 224 (1977), S. 497-497 
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of chemical ecology 3 (1977), S. 591-601 
    ISSN: 1573-1561
    Keywords: caudal gland ; cervids ; deer ; mammals ; pheromones ; Rangifer tarandus ; reindeer ; scent communication ; scent gland ; skin gland ; tail gland
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Behavior observations in European reindeer (Rangifer tarandus) showed a high frequency of sniffing the tails of conspecifics. A caudal gland was found, and it is the largest skin gland inRangifer. Behavioral contexts of tail sniffing, the histology of the gland, and some aspects of the composition of the volatiles in the gland's secretion are described.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Acta mechanica 26 (1977), S. 247-284 
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Description / Table of Contents: Summary The linear (acoustic) solution of the problem of diffraction and reflexion of a weak plane shock wave incident on a wedge is not uniformly valid. A singularity appears at the intersection-points of the plane fronts of the incident and reflected shocks with the cylindrical wave front of the wedge head. In addition there is no information about the steepening of the cylindrical wave front to a shock wave. Starting with the acoustic solution a uniformly valid solution is obtained by means of an analytical method of characteristics of first order. The determination of position and strength of the different shock sections (plane, slightly curved, circular) can be reduced approximately to two-dimensional problems. These problems arise in planes normal to the respective wave front in acoustic approximation.
    Notes: Zusammenfassung Die akustische Lösung für das Problem der Beugung und Reflexion einer schwachen ebenen Stoßfront an einem Keil ist nicht einheitlich gültig. Sie ist unstetig an den Stellen, an denen die ebenen Fronten des einfallenden und reflektierten Stoßes auf der kreiszylinderförmigen Störfront der Keilkante enden. Das Aufsteilen der Kantenstörfront zu einem Stoß wird nicht erfaßt. Ausgehend von der akustischen Lösung wird durch Anwendung eines analytischen Charakteristikenverfahrens erster Ordnung eine gleichmäßig gültige Lösung erhalten. Die Bestimmung von Lage und Stärke der einzelnen Stoßabschnitte (ebene, schwach gekrümmte, zylinderförmige Stoßfront) kann näherungsweise auf zweidimensionale Probleme in Normalebenen zu der jeweils betrachteten Wellenfront in akustischer Näherung zurückgeführt werden.
    Type of Medium: Electronic Resource
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