Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    ISSN: 1615-2573
    Keywords: Chronic volume overload ; Arteriovenous shunt ; Hypertrophy ; Dilation ; Contractility ; Myocardial working capacity ; Myosin isoenzyme pattern ; Rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effects of experimental arteriovenous shunt (AV shunt) on left ventricular dynamics and myocardial mechanics were investigated in female Wistar rats, weighing approx. 240 g. The main goal of the study was to characterize ventricular and myocardial working capacity and to estimate the significance of the various processes involved in cardiac adaptation to the altered loading conditions. Twelve weeks after operation, systemic blood pressure was slightly elevated in AV shunt rats as compared with age-matched controls, although total peripheral resistance (as related to a common aortic pressure) was significantly reduced. Heart rate and cardiac output were considerably increased. Despite marked left ventricular dilatation with increased end-diastolic and systolic wall stress, no signs of resting insufficiency were present. Left ventricular weight, end-diastolic volume and pressure, stroke volume, and ejection fraction were increased. The area between the curve of isovolumic maxima and the end-diastolic P-V curve (up to a defined end-diastolic pressure) and the normalized area between the isovolumic and end-diastolic stress-length curves as well as the maximum rate of stress development were augmented, even in the specimen with the highest degree of ventricular dilatation—despite a shift of the myosin isoenzyme pattern towards VM3. The study reveals that besides the change in ventricular mass and configuration, augmented preload is involved in cardiac adaptation to the altered hemodynamic state. Furthermore, there are indications of an intensified sympathetic stimulation of the heart. Transformation of the myocardium towards a slower muscle seems to be of minor functional significance under the conditions of the present experiments.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 76 (1964), S. 684-684 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 377 (1970), S. 105-107 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The preparation of (VCl3Py3) and (Ven3)Cl3 is described.
    Notes: Es wird über die Darstellung von (VCl3Py3) und (Ven3)Cl3 berichtet.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 409 (1974), S. 338-342 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: 129-Xe-NMR Spectra of Xenon Compounds. II Xenon (II) CompoundsThe 129Xe NMR Spectra of Xe(OSeF5)2, Xe(OTeF5)2, FXe-OSeF5, FXe-OTeF5, and F5SeO-Xe-OTeF5 have been measured and discussed. The mixed compounds FXe-OSeF5, FXe-OSeF5, FXe-OTeF5, and F5SeO-Xe-OTeF5 exist only in equilibrium with the derivatives Xe(OSeF5)2, Xe(OTeF5)2 and XeF2. Coupling of 129Xe is observed with the fluorine directly bonded at the Xenon atom, with the equatorial fluorine atoms on selenium and tellurium. and with the tellurium isotop 125Te.
    Notes: Die 129Xenonkernresonanzen von Xe(OSeF5)2, Xe(OTeF5)2, FXe-OSeF5, FXe-OTeF5 und F5SeO-Xe-OTeF5 wurden vermessen und interpretiert. Die gemischtsubstituierten Xenon-Derivate FXe-OSeF5, FXe-OTeF5 und F5SeO Xe-OTeF5 existieren nur im Gleichgewicht mit den reinsubstituierten Derivaten Xe(OSeF5)2, Xe(OTeF5)2 und XeF2 · Kopplungen des 129Xe mit den an1 Xenon gebundenen Fluoratomen, mit den äquatorialen Fluoratomen am Selen und Tellur und mit dem Tellur- isotop 125Te werden beobachtet.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 409 (1974), S. 331-337 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: 129Xenon-NMR Spectra of Xenon Compounds. I. Simple Xenon DerivativesThe 129Xe-NNR Spectra of simple Xenon compounds have been measured. The analytical value of this method is described. The spectra of Xe, XeF2, XeF4, XeOF4, and XeO3 are in agreement with the known structures, while XeF3 is found as Xe4F24 in inert solution at low temperatures. This had been described recently.
    Notes: Die 129Xe-Kernresonanzen einfacher Xenonverbindungen wurden vermessen. Der analytische Wert dieser Methode wird herausgestellt. Die Spektren Xe, XeF2, XeF4, XeOF4 und XeO3 entsprechen der Erwartung, während XeF6 bei tiefer Temperatur in Losung als Xe4F24 vorliegt, worüber schon berichtet wurde.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 3 (1964), S. 693-693 
    ISSN: 0570-0833
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 262 (1950), S. 223-228 
    ISSN: 0372-7874
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1.Es wurde das Verhalten von VCl3 gegen NH3 untersucht. Dabei fanden sich Ammoniakate mit 12, 7, 6, 5, 3 und 2 NH3. Die Bildungswärmen wurden berechnet.2.Die Ergebnisse sind bei Temperaturen oberhalb Zimmertemperatur mit Beobachtungen von EPHRAIM und AMMANN im Einklang; dagegen konnten die Angaben von J. MEYER und BACKA über die Entstehung von Vanadinnitrid bei der Einwirkung von NH3-Gas auf VCl3 nicht bestätigt werden.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...