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  • Activity coefficients  (3)
  • Pisum
  • Springer  (5)
  • Annual Reviews
  • Springer Science + Business Media
  • 1980-1984
  • 1975-1979  (5)
  • 1977  (5)
Collection
Keywords
Publisher
  • Springer  (5)
  • Annual Reviews
  • Springer Science + Business Media
Years
  • 1980-1984
  • 1975-1979  (5)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Thermodynamics of mixed electrolyte solutions. X. An isopiestic study of the quaternary system NaCl−KCl−MgCl2−H2O at 25°C (1977)
    Springer
    Journal of solution chemistry 6 (1977), S. 309-325 
    Details
    ISSN: 1572-8927
    Keywords: Activity coefficients ; osmotic coefficients ; interaction parameters ; excess Gibbs free energy of mixing ; NaCl ; KCl ; MgCl2
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Activity coefficients in the aqueous quaternary system sodium chloridepotassium chloride-magnesium chloride were derived from isopiestic measurements at 25°C. The isopiestic data were treated by the various procedures of Scatchard, Friedman, and Reilly, Wood, and Robinson, and results obtained agreed fairly well with those obtained by pseudoternary transforms. Interaction parameters obtained indicated the preponderance of pairwise interactions. Excess Gibbs free energies of mixing were calculated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00647045
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  • 2
    Electronic Resource
    Electronic Resource
    Thermodynamics of mixed electrolyte solutions. VIII. An isopiestic study of the ternary system KCl−MgCl2−H2O at 25°C (1977)
    Springer
    Journal of solution chemistry 6 (1977), S. 57-71 
    Details
    ISSN: 1572-8927
    Keywords: Activity coefficients ; excess Gibbs free energy of mixing ; interaction coefficients ; osmotic coefficients ; mixed salt solutions ; KCl ; MgCl2
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The osmotic coefficients of aqueous solutions of mixtures of potassium and magnesium chlorides were derived from isopiestic measurements at 25°C. The isopiestic data were treated by the methods of both Scatchard and Friedman, and the results obtained agree very well over the ionic strength range of 1–5. Interaction coefficients were obtained from both formalisms. Excess free energies of mixing were calculated and compared with those of similar systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00643432
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  • 3
    Electronic Resource
    Electronic Resource
    Thermodynamics of mixed electrolyte solutions. IX. Calculation of the osmotic and activity coefficients in a pseudoternary system (NaCl−nKCl)−MgCl2-H2O at 298.15°K (1977)
    Springer
    Journal of solution chemistry 6 (1977), S. 191-201 
    Details
    ISSN: 1572-8927
    Keywords: Activity coefficients ; osmotic coefficients ; interaction parameters ; excess Gibbs free energy of mixing ; NaCl ; KCl ; MgCl2
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The equation of Reilly, Wood, and Robinson was used to predict the osmotic coefficient of a pseudoternary system (NaCl−nKCl)−MgCl2−H2O over a molal ionic strength range of 1.0 to 5.0 moles-kg−1. The results are in close agreement with experimental data at most ionic strengths. The standard deviation in the osmotic coefficients over the entire concentration range lies within 0.0035. The predicted values of the mean activity coefficients are in good agreement with those obtained by the treatments of both Scatchard and Friedman. Mean activity coefficients for the other components were also predicted.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00646738
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  • 4
    Electronic Resource
    Electronic Resource
    Transport of exogenous auxin in two-branched dwarf pea seedlings (Pisum sativum L.) (1977)
    Springer
    Planta 136 (1977), S. 91-96 
    Details
    ISSN: 1432-2048
    Keywords: Apical dominance ; Auxin transport ; Cambial development ; Pisum ; Polarity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Dwarf pea plants bearing two cotyledonary shoots were obtained by removing the epicotyl shortly after germination, and the patterns of distribution of 14C in these plants was investigated following the application of [14C]IAA to the apex of one shoot. Basipetal transport to the root system occurred, but in none of the experiments was 14C ever detected in the unlabelled shoot even after transport periods of up to 48 h. This was true both of plants with two equal growing shoots and of plants in which one shoot had become correlatively inhibited by the other, and in the latter case applied whether the dominant or subordinate shoot was labelled. In contrast, when [14C]IAA was applied to a mature foliage leaf of one shoot transfer of 14C to the other shoot took place, although the amount transported was always low. Transport of 14C from the apex of a subordinate shoot on plants bearing one growing and one inhibited shoot was severely restricted compared with the transport from the dominant shoot apex, and in some individual plants no transport at all was detected. Removal of the dominant shoot apex rapidly restored the capacity of the subordinate shoot to transport apically-applied [14C]IAA, and at the same time led to rapid cambial development and secondary vascular differentiation in the previously inhibited shoot. Applications of 1% unlabelled IAA in lanolin to the decapitated dominant shoot maintained the inhibition of cambial development in the subordinate shoot and its reduced capacity for auxin transport. These results are discussed in relation to the polarity of auxin transport in intact plants and the mechanism of correlative inhibition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00387930
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  • 5
    Electronic Resource
    Electronic Resource
    Evidence for carrier-mediated transport of L-leucine into isolated pea (Pisum sativum L.) chloroplasts (1977)
    Springer
    Planta 136 (1977), S. 147-151 
    Details
    ISSN: 1432-2048
    Keywords: Carrier ; mediated transport ; Chloroplast ; Leucine ; Pisum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The uptake of leucine into isolated, intact, pea chloroplasts was investigated using the silicone oil centrifugation technique. The internal: external ratio of leucine exceeded unity at low external leucine concentrations. Uptake of leucine at different external concentrations showed passive diffusion and carrier-mediated transport components. Competition for uptake was shown between leucine and isoleucine but not between leucine and glycine. Rates of diffusion of leucine were found to be low compared with glycine, however, fast carrier-mediated transport of leucine assumed more importance at physiological concentrations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00396190
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