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  • Springer  (31)
  • Cambridge University Press  (4)
  • Wiley-Blackwell  (4)
  • Annual Reviews  (2)
  • American Association of Petroleum Geologists (AAPG)
  • 1965-1969  (41)
  • 1969  (30)
  • 1965  (11)
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  • 1965-1969  (41)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Respiratory Electron Transport (1965)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Plant Physiology 16 (1965), S. 343-382 
    Details
    ISSN: 0066-4294
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.pp.16.060165.002015
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  • 2
    Electronic Resource
    Electronic Resource
    interferences in the measurement of arsenic by the method of vašák and šedivec (1969)
    Springer
    Microchimica acta 57 (1969), S. 185-192 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Bei der Arsenbestimmung nachVašák undŠedivec wurden verschiedene Wellenlängen zur Messung der Konzentration des Arsendiäthyldithiocarbamats verwendet. Diese Unterschiede können mit der möglichen Anwesenheit von Silbernitrat in der Silbersalzlösung erklärt werden. Die Absorption sollte bei 522 nm gemessen werden, wenn das Salz gut gereinigt ist. Außerdem wurde die Störung durch Antimon (50 bis 450μg) geprüft.
    Notes: Summary In the measurement of arsenic by the method ofVašák andŠedivec, different wavelengths have been used to measure the concentration of the arsenic diethyldithiocarbamate. Such differences may be explained by the possible presence of silver nitrate in the silver salt solution. The absorbance should be measured at 522 nm when the salt is properly purified. The authors also measured the interference of antimony on the arsenic determination in the concentration range of 50–450μg.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01216682
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  • 3
    Electronic Resource
    Electronic Resource
    The determination of sulphuric acid in air: A specific method (1969)
    Springer
    Microchimica acta 57 (1969), S. 269-279 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Ein Verfahren zur Bestimmung von Schwefelsäure als Verunreinigung der Atmosphäre wurde beschrieben. Die Abtrennung von der Luftprobe erfolgt durch Mikrodiffusion bei 200° C. Die Schwefelsäure wird in Natronlauge absorbiert und mit Bariumperchlorat titriert.
    Notes: Summary A new method for the measurement of sulphuric acid in airborne particulates is described. Sulphuric acid present is separated from the sample matrix by microdiffusion at 200°. The separated sulphuric acid is absorbed in sodium hydroxide, and titrated by barium perchlorate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01224090
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  • 4
    Electronic Resource
    Electronic Resource
    Trace porphyrin complexes: Fluorescence detection by demetallation with methanesulfonic acid (1969)
    Springer
    Microchimica acta 57 (1969), S. 805-814 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Ein Verfahren zum Nachweis und zur spektralanalytischen Untersuchung von Spuren von Porphyrinkomplexen wurde beschrieben, das auf der kontrollierten Abspaltung des komplex gebundenen Metalls und darauffolgender Fluoreszenzmessung beruht. Führt man die Dekomplexierung mit Methansulfonsäure in der optischen Zelle des Meßgerätes durch, so werden Verluste und Verunreinigungen weitgehend vermieden. Die Methode erlaubt den Nachweis auch noch von 0,05 ng.
    Notes: Summary A method is described for the detection and spectral examination of traces of porphyrin complexes by controlled demetallation and spectrofluorometry. By carrying out the demetallation with methanesulfonic acid in the optical cell, difficulties connected with handling losses and introduction of contamination are minimized. The method is sensitive to quantities as low as 0.05 ng.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01216320
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  • 5
    Electronic Resource
    Electronic Resource
    Effect of autonomic drugs on Ca-induced contractures of the frog's ventricle (1969)
    Springer
    Cellular and molecular life sciences 25 (1969), S. 161-162 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Kontrakturen des Froschventrikels in Ringerlösung mit hoher Ca-Konzentration werden durch Azetylcholin verstärkt, während Adrenalin Erschlaffung herbeiführt. Diese Wirkungen sind nicht mit Änderungen des Membranpotentials verbunden und sind vielleicht die Folge sehr kleiner Änderungen des Ca-Austausches. Bei niederer Ca-Konzentration kann Azetylcholin auch Erschlaffung erzeugen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01899099
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  • 6
    Electronic Resource
    Electronic Resource
    Effect of dinitrophenol on the pattern of methionine transport along the small intestine of the rat (1965)
    Springer
    Cellular and molecular life sciences 21 (1965), S. 510-511 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Der Transport desL-Methionins durch die Rattendarmwand wurde in vitro untersucht. Die Transportgeschwindigkeit im Verlaufe von 1 h ist am höchsten im unteren Jejunum und im oberen Ileum (Abschnitte 4, 5 und 6). DNP-verursachte Hemmung ist in diesen Darmabschnitten am stärksten, was das Verschwinden des Maximums bewirkt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02138962
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  • 7
    Electronic Resource
    Electronic Resource
    P28S1 (1969)
    Springer
    Aequationes mathematicae 2 (1969), S. 114-115 
    Details
    ISSN: 1420-8903
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01833497
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  • 8
    Electronic Resource
    Electronic Resource
    P48S1 (1969)
    Springer
    Aequationes mathematicae 2 (1969), S. 387-389 
    Details
    ISSN: 1420-8903
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01817722
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  • 9
    Electronic Resource
    Electronic Resource
    A sine functional equation (1969)
    Springer
    Aequationes mathematicae 2 (1969), S. 397-398 
    Details
    ISSN: 1420-8903
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01817730
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  • 10
    Electronic Resource
    Electronic Resource
    Water dependent and water independent fluxes of potassium in exuding root systems of Ricinus communis (1969)
    Springer
    Planta 89 (1969), S. 212-223 
    Details
    ISSN: 1432-2048
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The flux of water, $$f_{{\text{H}}_{\text{2}} {\text{O}}}$$ , to the xylem of exuding root systems of Ricinus communis was controlled using a range of mannitol concentrations permitting the influence of this water flux on the potassium flux, f K, to be studied. The relationship between $$f_{{\text{H}}_{\text{2}} {\text{O}}}$$ and f K thus obtained was investigated, for a number of external concentrations of potassium, Cm, supplied as potassium nitrate. An analysis of these data indicated the presence of a water dependent and a water independent f K both of which varied with Cm. The water dependent f K shows a parabolic relationship with Cm for Cm values 〈1 mM followed by a sharp inflection and decline at higher Cm values whereas the water independent f K shows an hyperbolic relationship over the same range of Cm values. Uptake of potassium by exuding root systems was measured and shown to be dependent on the solute potential of the medium. The uptake was also shown to exhibit a dual absorption isotherm the kinetics of which indicate a low Km system (system 1) and a high Km system (system 2). The Km value obtained for system 1 is very similar to that obtained for the water independent f K. It is postulated that the water independent f K is contributed by that portion of f K arriving in the stele via the cortical symplast and is directly dependent on Cm. The water dependent f K is contributed by those ions moved across the root in response to centripetal water movement through the cortical cell walls.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00385027
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