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  • 1
    Electronic Resource
    Electronic Resource
    Debromination of .alpha.,.alpha.1-dibromo ketones with a zinc-copper couple in dimethylformamide and dimethylacetamide. New reaction yielding 2-dimethylamino-4-methylene-1,3-dioxolanes (1972)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 94 (1972), S. 3201-3204 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00764a051
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  • 2
    Electronic Resource
    Electronic Resource
    Thermodynamically unstable enols. 2-Methyl-2-penten-3-ols from 4-isopropylidene-5,5-dimethyl-2-dimethylamino-1,3-dioxolane (1972)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 94 (1972), S. 7832-7837 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00777a028
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  • 3
    Electronic Resource
    Electronic Resource
    Calculation of eddy current losses in metal parts of power transformers (2003)
    Bradford : Emerald
    Compel 22 (2003), S. 1102-1114 
    Details
    ISSN: 0332-1649
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Electrical Engineering, Measurement and Control Technology , Mathematics
    Notes: To maintain quality, performance and competitiveness, the eddy current losses in metal parts of power transformers in the range of 50-200 MVA are investigated in a more detailed form. The finite element calculations utilize different modelling strategies for the current carrying metal parts. Several global and local results are further used to obtain simplified calculation approaches for an inclusion in the initial design and the design optimization. The results from two finite element approaches using nodal and edge based formulations will be compared with measurements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/03321640310483039
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  • 4
    Electronic Resource
    Electronic Resource
    Analytic calculation of the voltage shape of salient pole synchronous generators including damper winding and saturation effects (2003)
    Bradford : Emerald
    Compel 22 (2003), S. 1126-1141 
    Details
    ISSN: 0332-1649
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Electrical Engineering, Measurement and Control Technology , Mathematics
    Notes: A novel analytic method for determining the no-load voltage shape of salient pole synchronous generators is presented. The algorithm takes into account the full influence of the damper winding and the saturation effects in the stator teeth. Main interest is an easy and very fast calculation method, which can be used as a criteria for the selection of the number of stator winding slots in the initial design calculation or an optimization process. The analytical results obtained are compared with the results of transient finite element analyses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/03321640310483057
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  • 5
    Electronic Resource
    Electronic Resource
    Besprechungen (1924)
    Springer
    Naturwissenschaften 12 (1924), S. 877-882 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01507569
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  • 6
    Electronic Resource
    Electronic Resource
    Spezifische und unspezifische Behandlung von Pyodermien (1926)
    Springer
    Archives of dermatological research 151 (1926), S. 155-159 
    Details
    ISSN: 1432-069X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01829539
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  • 7
    Electronic Resource
    Electronic Resource
    Beiträge zur Xanthomfrage (1922)
    Springer
    Archives of dermatological research 140 (1922), S. 408-428 
    Details
    ISSN: 1432-069X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung 1. Die ausgesprochen hereditäre Form des Xanthoms rechtfertigt die Abtrennung einer besonderen Gruppe als Xanthoma juvenile. 2. Die klinische Form der vererbbaren Xanthome ist unabhängig von derjenigen bei den Vorfahren. 3. Die bei der Xanthomatose beobachtete Hypercholesterinämie ist bei allen Formen von Xanthomen eine notwendige Grundbedingung. 4. Diese Hypercholesterinämie kommt zustande auf Grund einer Funktionsstörung im innersekretorischen Stoffwechsel gewisser Drüsen (Testes, Ovarien, Pankreas.) 5. Dieselbe innersekretorische Störung ist die Ursache einer Dispositionsänderung gewisser Zellen der Haut im Sinne einer erhöhten Affinität zu dem im Überschuß angebotenen Cholesterin im Blut und führt zur Ausbildung von Xanthomen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01826996
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  • 8
    Electronic Resource
    Electronic Resource
    Die Hautklinik am Städtischen Krankenhaus Stuttgart-Bad Cannstatt (1938)
    Springer
    Journal of molecular medicine 17 (1938), S. 1340-1342 
    Details
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01775895
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  • 9
    Electronic Resource
    Electronic Resource
    Relaxation of coronary arteries by electro-mechanical decoupling or adrenergic stimulation (1972)
    Springer
    Pflügers Archiv 337 (1972), S. 107-117 
    Details
    ISSN: 1432-2013
    Keywords: Coronary Artery ; Depolarization ; Noradrenaline ; Verapamil ; Isoproterenol ; Adrenergic Beta-Receptors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The contractions of isolated spiral strips from bovine and porcine coronary arteries were induced by potassium depolarization. The preparations were relaxed by verapamil and/or isoproterenol. 1. The non-activated preparation of bovine artery has a basal tone corresponding to 15±1.7% of the maximum of developed tension. 2. The contraction induced by potassium depolarization was largely prevented by 11.3 μg/ml of verapamil. In this preparation, however, 2.8 μg/ml of noradrenaline relaxed the depolarized spiral strip to the same degree as compared with values of the polarized arteries. 3. The depolarized, activated preparation is more relaxed by inhibition of calcium ion influx (verapamil) than by activation of beta-adrenergic receptors (isoproterenol). The relaxing effect takes place in the following order: noradrenaline (51.7%) 〈 isoproterenol (86.1%) 〈 verapamil (100%). 4. The polarized, non-activated preparation is more relaxed by stimulation of beta-adrenergic receptors (isoproterenol) than by inhibition of calcium ion influx (verapamil). The relaxing effect takes place in the following order: verapamil (64.4%) 〈 noradrenaline (85.3%) 〈 isoproterenol (100%). 5. The degree of maximal relaxation after verapamil, noradrenaline, or isoproterenol increases in the polarized preparation with augmented fibre stretch.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00587834
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  • 10
    Electronic Resource
    Electronic Resource
    Einfluß der Vordehnung auf die Dynamik der glatten Gefäßmuskulatur (1972)
    Springer
    Pflügers Archiv 333 (1972), S. 314-325 
    Details
    ISSN: 1432-2013
    Keywords: Vascular Smooth Muscle ; Initial Stretch ; Noradrenaline ; Angiotension ; Potassium Depolarization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 1. Isolated helical strips of rat aorta, splenic artery (hog) and coronary artery (hog and cattle) were stretched with various intensities. Determinations of the influence of this passive stretch on the efficiency of activation by potassium-depolarization, noradrenaline or angiotensin showed an increase of the induced contraction amplitude up to an initial stretch of more than 8000 dynes per mm2 sectional area (Fig.2). 2. An augmentation of the initial stretch possibly depolarized the membrane and this caused a shift of the dose-response curve of potassium to lower concentrations (Fig.4). 3. The contraction amplitude of aorta or splenic artery induced by noradrenaline amounted to an average of 120% or of 111% of the value after potassium depolarization (Fig.1). The influence of the initial stretch on this relationship is only slight (Fig.3). The most effective concentration of noradrenaline was about 5 μg/ml; it was not possible to show a correlation between the initial stretch and the maximal effective dose of noradrenaline. 4. Noradrenaline distinctly relaxed the coronary arteries. The maximal effective dose for this reaction was also about 5 μg/ml (Fig.1). 5. Angiotensin caused a contraction in all investigated preparations (Fig.1) and became more effective after an increase of the initial stretch (Fig.3). There was no relationship between the degree of stretch and the most effective dose of angiotensin. 6. The amplitude of contraction was mainly influenced by the initial stretch and independent of the kind of activation (depolarization, noradrenaline, angiotensin). Therefore the stretch obviously affected later steps within the activation mechanism. This could be ascribed, for example, to an increase of the number of interaction sites of the contractile proteins caused by increased stretch.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00586211
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