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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Diabetologia 6 (1970), S. 21-26 
    ISSN: 1432-0428
    Keywords: Liver ; glycogen deposition ; fatty infiltration ; function ; structure ; growth-onset diabetes ; maturity-onset diabetes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Soixante-trois diabétiques (50 diabétiques jeunes ≪G.O.≫ et 13 diabétiques d'âge mûr ≪M.O.≫) et 12 sujets témoins non-diabétiques, à égalité en ce qui concerne l'âge, le sexe et le régime alimentaire, ont été étudiés. Une hépatomégalie allant jusqu'à 5 cm a été observée chez 13 diabétiques jeunes non-cétosiques et 2 diabétiques d'âge mûr obèses. Une légère diminution fonctionnelle a été observée chez 7 diabétiques jeunes noncétosiques, présentant un dépôt accru de glycogène. Histologiquement le glycogène était plus abondant chez les diabétiques jeunes que chez les diabétiques d'âge mûr et les témoins; chez ces derniers le glycogène nucléaire était manifestement absent; une infiltration graisseuse a été observée chez 5 diabétiques obèses et une cirrhose portale chez un. La quantité de glycogène accumulé était en corrélation avec le degré d'hyperglycémie. Quantitativement, le glycogène du foie était élevé chez 15 diabétiques (moyenne 1060 ± 125.5 mg/100 g de tissu). Après un contrôle prolongé par l'insuline, les dépôts de glycogène diminuaient ou restaient les mêmes chez quelques patients étudiés.
    Abstract: Zusammenfassung Die Untersuchungen umfaßten 63 Diabetiker (50 vom jugendlichen und 13 vom Erwachsenen-Typ) sowie 12 nach Alter, Geschlecht und Ernährung vergleichbare nichtdiabetische Kontrollpersonen. Bei 13 nicht-ketotischen jugendlichen Diabetikern und 2 adipösen Altersdiabetikern fand sich eine Lebervergrößerung bis zu 5 cm. Leichte funktioneile Einschränkungen ließen sich bei 7 nicht-ketotischen jugendlichen Diabetikern mit gesteigerter Glykogeneinlagerung nachweisen. Histologisch fand sich bei den jugendlichen Diabetikern mehr Glykogen als bei den Diabetikern vom Erwachsenen-Typ und den Vergleichspersonen, bei letzteren fiel die Abwesenheit von nuclearem Glykogen auf. Eine Fetteinlagerung bestand bei 5, eine portale Cirrhose bei einem adipösen Diabetiker. Der Schweregrad der Glykogenspeicherung korrelierte gut mit dem Ausmaß der Blutzuckererhöhung. Bei 15 Diabetikern fand sich quantitativ eine Vermehrung des Leberglykogens mit einem Mittelwert von 1060 ± 125 mg/100 g Gewebe. Die wenigen bisher nach längerer Insulinbehandlung nachuntersuchten Patienten zeigten einen Rückgang oder Gleichbleiben der Glykogenspeicherung.
    Notes: Summary Sixty-three diabetics, (50 growth-onset type “G.O.” and 13 maturity-onset “M.O.”) and twelve nondiabetic controls, matched for age, sex and nutrition were studied. Hepatomegaly up to 5 cm was seen in 13 nonketotic, growth-onset and in 2 obese, maturity-onset patients. Mild functional impairment was observed in 7 nonketotic, young diabetics showing increased glycogen deposition. Histologically, glycogen was more marked in young diabetics compared with the maturity-onset diabetics and healthy controls; nuclear glycogen was conspicuously absent in the latter; fatty infiltration was present in 5 obese diabetics and portal cirrhosis was seen in one. The severity of glycogen deposition correlated well with the degree of hyperglycaemia. Quantitatively, glycogen in the liver was high in 15 diabetics (mean 1060 ±125.5 mg/100 g of the tissue). After prolonged control with insulin, glycogen deposits decreased or remained the same in a few patients studied so far.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Inorganic and Nuclear Chemistry 42 (1980), S. 1067 
    ISSN: 0022-1902
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Computational mechanics 23 (1999), S. 20-32 
    ISSN: 1432-0924
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The pulsatile flow in a pipe with a moving boundary has been studied for a viscous, incompressible fluid by solving the Navier-Stokes equations numerically. The governing equations were formulated in boundary fitted curvilinear coordinates and a finite volume discretization procedure was used to solve the problem. This analysis is based on the assumption that the flow has a simple periodic pulsation and the shape of the wall changes according to the frequency of pulsation. The presence of the moving boundary causes unsteadiness in the flow behaviour as the vibrating wall has a nonlinear interaction with the flow. A detailed analysis of the flow field is presented here for a range of frequencies (5≤α≤10) where α is the reduced frequency parameter and a Reynolds number of 100.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    International Journal for Numerical Methods in Fluids 23 (1996), S. 1021-1041 
    ISSN: 0271-2091
    Keywords: curvilinear co-ordinate system ; constriction ; stenosis ; module ; finite volume ; Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The flow field through tubes with multiple axisymmetric constrictions in tubes was studied numerically. Two practical problem cases were considered and the numerical scheme was developed for both. In the first case there are one, two, three and four constrictions in the tube. The effects of the number of constrictions on wall shear stress, pressure drop, streamline, vorticity and velocity distributions as the flow passes through the tube were studied and the development of the periodicity characteristics was investigated. In the second case there were multiple constrictions in the tube equidistant from each other. For this case the governing equations were reformulated for a module at a sufficient distance downstream from the inlet where the entrance region effects could be ignored and flow field is assumed to repeat itself. The flow field solutions were obtained in this region. The governing equations were formulated in curvilinear co-ordinates and a finite volume discretization procedure was used to solve the problem. The computations were carried out over a range of Reynolds numbers between 50 to 250 for constrictions with 75 percent area reduction. The method is validated by comparing some of the solutions with experimental results.
    Additional Material: 19 Ill.
    Type of Medium: Electronic Resource
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