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  • 1975-1979  (2)
  • 1940-1944
  • Engineering  (1)
  • Mikroelektrophorese  (1)
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  • 1975-1979  (2)
  • 1940-1944
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  • 1
    ISSN: 1432-1440
    Keywords: Polyacrylamide-gradient gels ; microelectrophoresis ; proteinuria ; glomerulonephritis ; Polyacrylamid-Gradientengele ; Mikroelektrophorese ; Proteinurie ; Glomerulonephritis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es wird über die Anwendung der Mikroelektrophorese in Polyacrylamid-Gradientengelen zur Differenzierung der Proteinurie bei Glomerulonephritis berichtet. Die zeitlichen und methodischen Vorteile dieser Elektrophorese erlauben eine routinemäßige Durchführung in der Klinik. Durch die Auftrennung der Urinproteine nach ihrer Molekulargröße und Form lassen sich vier Proteinuriemuster unterscheiden: kleinmolekular, mittelmolekular, intermediär und hochmolekular. Glomerulonephritisformen, die konstante morphologische und klinische Veränderungen zeigen (z.B. minimal proliferierende Glomerulonephritis, mesangioproliferative Glomerulonephritis mit diffuser Halbmondbildung), lassen eine Zuordnung ihrer Proteinurie zu einem der vier Proteinuriemuster zu, während bei den anderen Glomerulonephritisformen (z.B. perimembranöse Glomerulone-phritis, mesangioproliferative Glomerulonephritis) eine Abhängigkeit des Proteinuriemusters von der Glomerulonephritisphase vermutet wird.
    Notes: Summary It is possible to differentiate the proteinuria of glomerulonephritis by means of microelectrophoresis in polyacrylamide-gradient gels. The advantages of this method (quick, cheap, concentration of the urine not required) led to its introduction into clinical use. Upon separating the urinary proteins according to their molecular weight and form, four patterns of proteinuria may be differentiated: low molecular, middle molecular, intermediate and high molecular. Those forms of glomerulonephritis which show constant morphological and clinical findings (e.g. minimal proliferative glomerulonephritis, mesangioproliferative glomerulonephritis with crescents) can be related to one of the four patterns of proteinuria, whereas the pattern of proteinuria in other forms of glomerulone-phritis (e.g. (peri-)membranous glomerulonephritis, mesangioproliferative glomerulonephritis) are dependent on the phase of the disease.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 12 (1978), S. 487-504 
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: This paper present a numerical method to obtain optimal quadrature formulas of Gauss type and Radau type in the sense of Sard. Using the relation between optimal quadrature formulas and nonospline functions, the optimal quadrature formula can be obtained by solving a set of no-linear simultaneous algebraic equations induced from the interpolatory conditions of the monospline. In attempting to solve this set of non-linear algebraic equations for numbers of knots and degrees of interpolution required in estimation problem applications insurmountable numerical errors were encountered. This paper solves the numerical problem by first reducing the number of unknowns and equations to approximately one half the original number. This is accomplished by showing and then using a symmetry property of the monospline. Second an iteration scheme which partitions the reduced order set of non-linear algebraic equations into a linear subsystem and a non-linear subsystem is developed to numerically solve the equations. This iteration algorithm provides the advantages of reducing the computational complexity, dynamically checking the convergence and explicitly evluating the resulting accuracy.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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