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  • Chemistry  (4)
  • Calcium  (1)
  • 1970-1974  (5)
  • 1965-1969
  • 1970  (5)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Calcified tissue international 6 (1970), S. 220-226 
    ISSN: 1432-0827
    Keywords: Hypercalcemia ; Hypocalcemia ; Adrenal Cortex ; Hormones ; Secretion ; Calcium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Description / Table of Contents: Résumé Les augmentations en teneur du calcium plasmatique, provoquées par le gluconate de calcium, donnent des taux de sécrétions plus élevées du cortex surrénalien chez les chiens anesthésiés. L'hypocalcémie consécutive à l'action du EDTA n'a pas d'action sur ces sécrétions et l'hypophysectomie supprime l'augmentation des taux de sécrétion, observés chez l'animal entier hypercalcémique. Les mécanismes par lesquels le calcium peut affecter les sécrétions cortico-surrénaliennes sont envisagés en fonction des effects au niveau des différentes phases du système hypothalamo-hypophyso-cortico-surrénalien.
    Abstract: Zusammenfassung Durch Infusion von Calciumgluconat verursachte Erhöhungen des Plasmacalciumspiegels ergaben beim anaesthesierten Hund eine gesteigerte adrenocorticale Sekretion. Die Hypocalcämie, die auf Grund von EDTA-Infusion entstand, hatte keine sichtbare Wirkung auf das Ausmaß der adrenocorticalen Sekretion. Durch Hypophysektomie wurde die gesteigerte Sekretion, wie man sie beim hypercalcaemischen Tier findet, aufgehoben. Die Mechanismen, durch welche Calcium die adrenocorticale Sekretion beeinflussen kann, werden im Hinblick auf seine Wirkung an verschiedenen Stellen im hypothalamo-hypophysär-adrenocorticalen System besprochen.
    Notes: Abstract Increases in plasma calcium levels caused by the infusion of calcium gluconate resulted in enhanced adrenocortical secretory rates in anesthetized dogs. Hypocalcemia resulting from the infusion of EDTA had no discernible effect on adrenocortical secretory rates, and hypophysectomy abolished the rise in secretory rates noted in the hypercalcemic intact animals. The mechanisms by which calcium may effect adrenocortical secretion are discussed with respect to its effect at various sites in the hypothalamo-hypophyseal-adrenocortical system.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0021-9304
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine , Technology
    Notes: The feasibility of the use of porous ceramic materials in the permanent repair of skeletal defects was studied from the standpoint of physiological compatibility and in growth of natural bone. High-fired calcium aluminate samples in the form of quarter-inch diameter cylindrical pellets containing interconnecting porous networks were implanted in vivo into canine femurs for 4-, 11-, and 22-week periods. The implants had 65% porosity with pore size falling within one of five distinct ranges from less than 45 μ to about 200 μ in diameter.Thin sections were prepared by grinding (poly) methyl methacrylate-mounted cross sections of the femurs containing the implanted ceramic samples and adjacent soft tissues. Tissue-prosthetic compatibility was determined using standard histological thin section procedures, electron microbeam probe examinations, autoradiographic techniques, microfadiographic techniques, microchemistry techniques, and ultra-violet fluorescent techniques. Optical microscopic evaluations of each section showed the ceramic samples to be bound lightly by natural bone and gave no detectable signs of tissue incompatibility. Minimum pore size for significant ingrowth of natural bone was indicated to be between 75 and 100 μ.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 16 (1970), S. 134-138 
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: An analysis of the two-dimensional temperature field of a square column embedding a heating cylinder is presented. The analysis leads to a solution in finite series which gives rise to rapidly converging numerical results. The series coefficients computed for the extreme case of the cylinder being a line find a way of parametrization, which then furnishes the solutions for finite cylinders up to the case of the cylinder diameter being half of the column thickness. Results in five-digit accuracy are presented. The method is simple and direct. In addition, it retains the same concise formal solution for a variety of boundary conditions.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 16 (1970), S. 326-329 
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 16 (1970), S. 1108-1110 
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: No Absract.
    Type of Medium: Electronic Resource
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