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  • 1995-1999  (1)
  • 1985-1989  (2)
  • 1
    Electronic Resource
    Electronic Resource
    A curve-crossing model for He*(23S)+Ne collisions consistent with differential and total scattering cross sections, and quenching rate constants (1989)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 90 (1989), S. 7118-7126 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: He*(23S)+Ne differential elastic scattering measurements in crossed supersonic beams over the energy range 0.6–2.8 kcal/mol are combined with total cross section velocity dependence and quenching rate constant temperature dependence to determine a 3×3 potential matrix characterizing a double curve-crossing model for the collision dynamics and energy transfer. The coupled radial Schrödinger equations are integrated numerically to yield the appropriate cross sections. At low energy (E〈4 kcal/mol) a mixed adiabatic/diabatic two-state model derived from the potential matrix accurately represents the data. Dynamics in the three-state model, which is topologically similar to non-adiabatic coupling involving charge transfer, is discussed, and the bearing of the model on collisional pumping of the HeNe 1.1 μ laser is assessed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.456241
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Hydraulic contribution in cell elongation of tissue-cultured plants: growth retardation induced by osmotic and temperature stresses and addition of 2,4-dichlorophenoxyacetic acid and benzylaminopurine (1999)
    Oxford, UK : Blackwell Science Ltd.
    Plant, cell & environment 22 (1999), S. 0 
    Details
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: This work was undertaken to determine the growth parameters of Lockhart’s equation for finding which component was predominantly contributing to the cell expansion rates of plants subjected to environmental stresses under tissue-culture conditions. Embryos isolated from soybean (Glycine max [L.] Merr.) and kidney bean (Phaseolus vulgaris L.) seeds were grown under tissue-culture conditions. The water potential of culture media ranged from − 0·02 to − 0·94 MPa so that nutrient deficiency and salt stress conditions could be applied. Additionally, the temperature of culture conditions was set from 10 to 40 °C to apply low-temperature and high-temperature stresses on plants grown at the optimum concentration of culture medium. Cell expansion could be inhibited completely by adding 2,4-dichlorophenoxyacetic acid and benzylaminopurine to culture media to form callus tissue. The sizes of the water potential gradient between the water source and elongating cells correlated with the speed of growth rates under nutrient deficiency, salt stress, growth retardation induced by plant hormones, low-temperature and high-temperature conditions in the present study, indicating that cell expansion rates were mainly associated with how much water could be absorbed by elongating cells regardless of the kinds of environmental stress conditions applied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-3040.1999.00463.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Subcutaneous transposition of the spleen enhances the survival rate following 90% hepatectomy in rats (1989)
    Springer
    Cellular and molecular life sciences 45 (1989), S. 457-459 
    Details
    ISSN: 1420-9071
    Keywords: 90% hepatectomy ; spleen transposition ; portal congestion ; portal-systemic shunt ; hepatic failure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The effects of subcutaneous transposition of the spleen (STS) on the survival rate following 90% hepatectomy were investigated in rats. The survival rate was significantly higher in the STS group than in the non-STS group. Light microscopy enabled us to note that congestion in the terminal portal veins and sinusoids occurred either slightly earlier or to a higher degree in the non-STS group.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01952028
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    Paper (German National Licenses)
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