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  • 1
    Electronic Resource
    Electronic Resource
    Plasma atrial natriuretic peptide and the renin-aldosterone system during long-term administration of the diuretic xipamide in man (1989)
    Springer
    European journal of clinical pharmacology 36 (1989), S. 111-117 
    Details
    ISSN: 1432-1041
    Keywords: alpha-atrial natriuretic peptide ; xipamide ; plasma renin activity ; plasma aldosterone ; urinary kallikrein excretion ; healthy volunteers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary We have studied the effect of xipamide on plasma α-atrial natriuretic peptide and the reninaldosterone-kallikrein system in twelve healthy men, using a double-blind cross-over design. After a run-in period on placebo for 1 week the subjects were treated with either placebo (n=6) or xipamide 20 mg once daily (n=6) for 16 weeks and were then switched to the alternative medication for another 16 weeks. The plasma concentration of α-atrial natriuretic peptide fell after 1 week of xipamide administration and increased during prolonged xipamide administration but remained suppressed. The changes in plasma α-ANP observed after 1 week of xipamide were negatively correlated with the changes in haematocrit and haemoglobin. Plasma renin activity (PRA), aldosterone concentration (PAC), and urinary excretion of aldosterone and kallikrein increased after 1 week of xipamide administration, levelled off during the second and fourth weeks, but remained elevated during further prolonged xipamide administration for 16 weeks. The xipamide-induced changes in PRA and PAC were positively correlated with the changes in the haematocrit and haemoglobin. Our data suggest that the changes in plasma renin, aldosterone, and α-atrial natriuretic peptide during xipamide administration may be related to diuretic-induced volume contraction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00609181
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  • 2
    Electronic Resource
    Electronic Resource
    Osmotic Effects of Dilution on Erythrocytes after Freezing and Thawing in Glycerol-Containing Buffer
    Amsterdam : Elsevier
    Cryobiology 30 (1993), S. 279-285 
    Details
    ISSN: 0011-2240
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1006/cryo.1993.1026
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The prevention of erythrocyte swelling upon dilution after freezing and thawing
    Amsterdam : Elsevier
    Cryobiology 28 (1991), S. 237-245 
    Details
    ISSN: 0011-2240
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0011-2240(91)90028-M
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Experiments on size effects in helicon resonances (1970)
    Springer
    Journal of low temperature physics 2 (1970), S. 103-112 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Helicon resonance experiments are described in thin metal plates where the electron mean free path exceeds the thickness of the plate. The contribution of surface scattering to the damping of helicon resonances is quantitatively discussed (for the regime where the Doppler-shifted Cyclotron Resonance is unimportant). This yields a satisfactory explanation for the differences between theQ-values of the fundamental resonance and the first overtone that we observed in a thin-walled box of pure indium.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00628103
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  • 5
    Electronic Resource
    Electronic Resource
    Effects of training on erythrocyte 2,3-diphosphoglycerate in normal men (1988)
    Springer
    European journal of applied physiology 57 (1988), S. 456-461 
    Details
    ISSN: 1439-6327
    Keywords: Endurance training ; Erythrocytes ; 2,3-DPG ; Hexokinase ; Pyruvate kinase ; Glucose-6-phosphate dehydrogenase ; Glutathione reductase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The erythrocyte 2,3-diphosphoglycerate concentration (2,3-DPG) and the activity of red cell hexokinase, pyruvate kinase, glucose-6 phosphate dehydrogenase and gluthatione reductase were studied in 27 normal volunteers before and after 2 and 4 months of physical endurance training. The 4 months of training increased maximal oxygen uptake and physical working capacity (PWC130) by 16% (p〈0.001) and 29% (p〈0.001) respectively. Resting heart rate was decreased (p〈0.001) by 11 beats·min−1. With 2 months of training the erythrocyte 2,3-DPG concentration increased by 9% (p〈0.001); with 4 months training the increase was only 4% (p〈0.05). The training-induced increase in red cell 2,3-DPG was not accompanied by enhanced activity of erythrocyte hexokinase, pyruvate kinase, glucose-6 phosphate dehydrogenase or glutathione reductase. It is concluded that the rise in red cell 2,3-DPG induced by physical endurance training is not due to activation of red cell glycolytic enzymes or the enzymes involved in the pentose-phosphate cycle
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00417993
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  • 6
    Electronic Resource
    Electronic Resource
    Erythrocyte 2,3-disphosphoglycerate concentration before and after a marathon in men (1988)
    Springer
    European journal of applied physiology 57 (1988), S. 452-455 
    Details
    ISSN: 1439-6327
    Keywords: Marathon ; 2,3-Diphosphoglycerate ; Erythrocytes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Erythrocyte 2,3-diphosphoglycerate (2,3-DPG) concentration was studied in 23 runners before and after a marathon race. Blood samples were drawn from an antecubital vein the morning before the race (baseline), at 3 p.m. 2 h before the start, on finishing, and 12 and 36 h later. Compared to the baseline values, erythrocyte 2,3-DPG concentration was increased (p〈0.001) immediately after the marathon from 4.62±0.14 to 5.56±0.13 μmol·ml−1 RBC and remained elevated 12 h later (5.45±0.14 μmol·ml−1 RBC): it returned to prerace values 36 h after completion of the marathon.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00417992
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  • 7
    Electronic Resource
    Electronic Resource
    Chemische Enthülsung von Brennstoff-Elementen mit Hilfe von HF/O2-Mischungen (1971)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 43 (1971), S. 800-803 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Bei der Wiederaufarbeitung von Brennstoff-Elementen muß zunächst die Umhüllung aus nichtrostendem Stahl entfernt werden. Hierzu wurde eine Mischung aus Fluorwasserstoff und Sauerstoff verwendet, wobei zur besseren Temperatursteuerung bei mehreren Versuchen auch eine Wirbelschicht aus Aluminium benutzt wurde. Bei HF-Gehalten ab 80 Vol.-% wird nur die Umhüllung entfernt, bei geringeren HF-Konzentrationen werden auch die UO2-Pelletts pulverisiert. Da die Durchdringungsgeschwindigkeit mit zunehmender Temperatur abnimmt, stellt sich die Temperatur nach einiger Zeit auf einen konstanten Wert ein, der von den Versuchsbedingungen abhängt, wobei die geometrischen Abmessungen des Bündels einen besonders großen Einfluß ausüben.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330431404
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