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  • Electronic Resource  (13)
  • 1970-1974  (13)
  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 44 (1972), S. 100-104 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 45 (1973), S. 749-754 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 45 (1973), S. 1626-1632 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Diabetologia 6 (1970), S. 420-424 
    ISSN: 1432-0428
    Keywords: Plasma insulin ; glucose tolerance test ; postgastrectomy ; carbohydrate metabolism ; lag curves
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La signification de la courbe pointue («lagcurve») c-à-d celle dans laquelle le sucre sanguin monte rapidement à partir de la valeur normale à jeun à plus de 180 mg/100 ml mais retourne à la valeur à jeun en 120 min, reste controversée. Pour étudier cela plus profondément, le taux de l'insuline plasmatique a été mesuré par dosage radio-immunologique, pendant des épreuves de tolérance au glucose orales et intraveineuses, chez trois groupes de sujets comparables en ce qui concerne l'âge et le poids. Groupe 1, 14 avec des courbes pointues inexpliquées [(lagstorage curves) caractéristique de l'absorption intestinale rapide]. Groupe 2, 14 avec des courbes pointues à la suite d'une intervention chirurgicale gastrique. Groupe 3, 14 sujets normaux. Le taux moyen d'insuline était plus élevé dans le groupe 1 que dans le groupe 3, mais le stimulus hyperglycémique était plus grand. La réponse insulinique dans le groupe 2 n'a pas différé des témoins d'une façon significative. La courbe moyenne du sucre sanguin était semblable dans les groupes 1 et 2, mais en dépit de ceci, la réponse insulinique était significativement prolongée dans le groupe 1 suggérant un degré de résistance ou d'antagonisme insulinique. Dans les épreuves intraveineuses, 2 malades de chacun des groupes 1 et 2 avaient une valeur K dans le domaine des valeurs diabétiques. La valeur moyenne de K était plus élevée dans le groupe 1 que dans le groupe 2. Les deux groupes montraient une réponse insulinique semblable mais plutôt basse.
    Abstract: Zusammenfassung Die Bedeutung von spitzgipfligen Blutzuckerkurven, die von normalen Nüchternspiegeln auf mehr als 180 mg% ansteigen, um in 120 min auf die Ausgangswerte zurückzukehren, bleibt strittig. — Um diese Frage weiter zu klären, wurden imnumologisch die Plasma-Insulinwerte bei 3 Gruppen von je 14 Probanden gemessen, die nach Alter und Gewicht übereinstimmten: Gruppe 1 bestand aus Probanden mit derartigen Kurven ohne ausreichende Erklärung, Gruppe 2 aus Patienten nach Magenoperationen und Gruppe 3 diente als Vergleichskollektiv. Im Teilkollektiv 1 fanden sich höhere Insulinwerte als in 3, doch bestand gleichzeitig eine stärkere Blutzuckererhöhung als Stimulans. Die Insulinausschüttung in der Gruppe 2 unterschied sich nicht signifikant vom Vergleichskollektiv. In den Gruppen 1 und 2 stimmen die Blutzuckerspiegel weitgehend überein, doch hielt die Erhöhung der Insulinkonzentration in Gruppe 1 signifikant länger an, was auf einen gewissen Grad von Insulin-Resistenz oder -Antagonismus schließen läßt. Bei der i.v. Belastung ergaben sich für je 2 Probanden der Gruppen 1 und 2k-Werte im diabetischen Bereich. In Gruppe 1 lagen die mittlerenk-Werte höher als in Gruppe 2. Beide Teilkollektive zeigten eine eher erniedrigte Insulin-Ausschüttung.
    Notes: Summary The significance of the lag curve, i.e. one in which the blood sugar rises rapidly from a normal fasting value to more than 180 mg/100 ml but returns to the fasting value within 120 min, remains controversial. In order to study this further, plasma insulin levels were measured by immunoassay during oral and intravenous glucose tolerance tests in 3 groups of age/weight matched subjects: Group 1, 14 with unexplained lag curves: Group 2, 14 with lag curves following gastric surgery and Group 3, 14 normal subjects. The mean insulin levels were higher in Group 1 than in Group 3 but the hyperglycaemic stimulus was greater. The insulin response in Group 2 did not differ significantly from the controls. The mean blood sugar curves were similar in Groups 1 and 2, but despite this the insulin response was significantly prolonged in Group 1, suggesting a degree of insulin resistance or antagonism. In the intravenous test 2 patients from each of Groups 1 and 2 had aK value in the diabetic range. The meanK value was higher in Group 1 than in Group 2. Both groups showed a similar rather low insulin response.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of organic chemistry 35 (1970), S. 2035-2036 
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 46 (1974), S. 1492-1499 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 76 (1972), S. 1989-1993 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 4 (1971), S. 506-511 
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: Quinacridones are pigments of outstanding light, heat and chemical fastness. Single crystals of linear unsubstituted quinacridone and 4,11-dichloroquinacridone were grown by the vacuum sublimation method at about 425°C and 390°C respectively under a vacuum of 0.3 torr. The sublimation products are always γ-form quinacridone and β-form 4,11-dichloroquinacridone no matter what respective polymorphic forms are used as the starting material. Exothermic effects at transition temperatures were observed for both materials on heating by TGA and DSC techniques. The space groups and unit-cell dimensions were determined by the precession method. The powder patterns are indexed by single-crystal data. The size, shape, and orientation of the molecules as well as the general structure features are discussed.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 6 (1973), S. 225-230 
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: A new X-ray diffraction method for the determination of crystallinity of polymers is reported. A probability function is used to express the intensity distribution of an amorphous halo. The intensity of the halo buried under any crystalline peak can be calculated by this function. An amorphous-standard-addition method was used to determine crystallinity. A linear relationship between intensity and concentration is derived theoretically and applied to polyethylene terephthalate. No previous chemical or structural information about the polymer is necessary for this method. Very good agreement between X-ray data and density measurements were obtained. This method is rapid, practical and suitable for routine analysis.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 232 (1971), S. 623-624 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Until now, emphasis has generally been placed on the fundamental principles involved, and the use of a laser source has been limited to very specific problems2. This communication describes a successful attempt to use a pulsed neodymium laser as a source for the analysis of some elements in ...
    Type of Medium: Electronic Resource
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