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
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 150 (1991), S. 503-506 
    ISSN: 1432-1076
    Keywords: Dopamine infusion ; Newborn infants ; Plasma catecholamines ; Noradrenaline ; Adrenaline
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Newborn infants (21 preterm and 13 term) received dopamine infusions at a low (2.5–3.4 μg/kg per min) and/or high (5–10 μg/kg per min) infusion rate and changes in plasma catecholamines were monitored. The mean baseline values for dopamine, noradrenaline and adrenaline were between 240 and 560, 125 and 144 and 62 and 82 pg/ml, respectively. During low-rate infusion of dopamine, there was a significant increase in plasma dopamine (20–100fold), noradrenaline (three- to five-fold) and adrenaline (threefold). Administration of dopamine at the high rate resulted in an even larger increase in the plasma catecholamines (dopamine, 100–300fold; noradrenaline, seven- to eightfold; adrenaline, four- to sixfold). In a double-log plot, there was a highly significant correlation between the plasma concentrations of dopamine and noradrenaline (r=0.77;P〈0.001). In conclusion, infusion of dopamine in term and preterm newborn infants is accompanied by an enhanced sympatho-adrenal tone which may contribute to the cardiovascular effects of dopamine in these patients.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: For column chromatography of dissolved materials silica gel preparations with systematically changed space structure are used. Differences of space structure are characterised by a distinctive parameter of space structure, the specific pore volume.Separations are described which are no longer effected by differentiated chemical reactions of the dissolved materials with the silica gel surface, but only by a differentiated distribution of the larger and smaller particles of the dissolved materials between the mobile phase of the solvent and the quasi-stationary phase of this solvent within the wide pores of the silica gel granules.Separations were made of the following material systems:Thorium oxide sol/Cl ions (using water as solvent), styrene/polystyrene (using benzene or chloroform as solvent), paraffin/polystyrene (using chloroform as solvent). Polystyrene as a mixture of polymeric homologues of the mean molecular weight 38,000 or 250,000 is fractionated. In the successive fractions the mean molecular weight decreases.
    Notes: Für die Sälenchromatographie gelöster Stoffe werden Silicagelpräparate mit systematisch abgeänderter Hohlraumstruktur eingesetzt. Unterschiede der Hohlraumstruktur werden durch einen besonders hervortretenden Parameter der Hohlraumstruktur, das spezifische Porenvolumen, gekennzeichnet.Es werden Trennungen beschrieben, die nicht mehr auf differenzierten chemischen Reaktionen der gelösten Stoffe mit der Oberfläche des Silicagels, sondern nur noch auf einer differenzierten Verteilung der größeren und kleineren Teilchen der gelösten Stoffe zwischen der mobilen Phase des Lösungsmittels und der quasi-stationären Phase desselben Lösungsmittels in den weiten Poren der Silicagelkörner beruhen.Trennungen werden ausgeführt an den Stoffsystemen:Thoriumoxidsol/Cl-lonen (mit Wasser als Transportflüssigkeit), Styrol/Polystyrol (mit Benzol bzw. Chloroform als Transportflüssigkeit), Paraffin/Polystyrol (mit Choroform als Transportflüssigkeit). Polystyrol als Gemisch von Polymerhomologen mit dem mittleren Molekulargewich 38000 bzw. 250000 werden fraktioniert. In den aufeinanderfolgenden Fraktionen nimmt das mittlere Molekulargewicht ab.
    Additional Material: 8 Ill.
    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
    Chemie Ingenieur Technik - CIT 25 (1953), S. 701-705 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: An drei Wärmeaustauschern, dem Rohrbündel-, dem Scheiben- und dem Schraubenrohrwärmeaustauscher aus Diabon-Graphit wurden Wärmedurchgangsmessungen durchgeführt. Die spez. Übertragungsleistungen, ausgedrückt durch die Wärmedurchgangszahlen, liegen bei allen drei Baumustern sehr günstig. Zweck der Untersuchung sollte sein, dem anwendenden Ingenieur ein Bild von der Leistungsfähigkeit und Belastbarkeit einiger Graphit-Wärmeaustauscher aus jüngster Entwicklung zu vermitteln.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 155 (1940), S. 342-346 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic 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 ...
  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 80 (1968), S. 359-360 
    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 ...
  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 7 (1968), S. 371-372 
    ISSN: 0570-0833
    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 ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...