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  • Articles  (4)
  • Articles: DFG German National Licenses  (4)
  • Cluster analysis  (1)
  • Triticum aestivum L.  (1)
  • cytochrome c′  (1)
  • near-infrared spectrophotometry  (1)
  • Springer  (4)
  • 1995-1999  (4)
  • 1990-1994
  • 1905-1909
  • 1995  (4)
Collection
  • Articles  (4)
Source
  • Articles: DFG German National Licenses  (4)
Keywords
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  • Springer  (4)
Years
  • 1995-1999  (4)
  • 1990-1994
  • 1905-1909
Year
Topic
  • 1
    Electronic Resource
    Electronic Resource
    Komplexe Zusammenhänge zwischen Eigenschaften und Strukturparametern von Elektrodengläsern (1995)
    Springer
    Monatshefte für Chemie 126 (1995), S. 839-850 
    Details
    ISSN: 1434-4475
    Keywords: Electrode glasses ; Principal Component Analysis ; Cluster analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Cluster Analysis has been shown to be partially suitable for the classification of glasses. The expansion of the clusters on theSeger's diagram allows an investigation of the influence of the different glass components. Variation of the SiO2 content results in a smaller change of properties than variation of the Na2O/RO relationship. Principal Component Analysis is convenient for showing correlations between the composition of the examined glasses, the glass structure parameters, and the different electrode properties. Properties of electrodes are mostly influenced by the content of Na2O and by the kind of the divalent cations. In contrast thereto structure parameters become basically determined by the content of SiO2 and RO. The field strength of the divalent cations plays the decisive roll again.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00811003
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  • 2
    Electronic Resource
    Electronic Resource
    Analysis of the loop-helix interaction in bundle motif protein structures (1995)
    Springer
    The protein journal 14 (1995), S. 559-566 
    Details
    ISSN: 1573-4943
    Keywords: Bovine somatotropin ; methemerythrin ; cytochrome b-562 ; cytochrome c′ ; CHARMM ; GROMOS ; UHBD
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Molecular dynamics simulations and energy analysis have been carried out to study the structural mobility and stability of the four α-helix bundle motifs. The simulation results as well as the X-ray data show that the atomic RMS fluctuation is larger at the loop region for four representative proteins investigated: methemerythrin, cytochrome b-562, cytochrome c′, and bovine somatotropin. The loop-loop, helix-helix, and loop-helix interactions are computed for the unfolded and folded proteins. In the folded and solvated protein structures the loop-helix interaction is stronger than the helix-helix interaction, especially in the electrostatic component. But the stabilization energies of both the loop-helix and the helix-helix interactions relative to the those of an unfolded structure are of the same order of magnitude. The stabilization due to protein-solvent interaction is greater in the helix region than in the loop region. The percentage of hydrophilic solvent accessible area for the four proteins studied was calculated with the method of Eisenberg and McLachlan. The percentage of the hydrophilic area is greater in the loops than in the helices. A Poisson-Boltzmann calculation shows that the potential from the loops acting on a helix is generally more negative than that from other helices.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01886882
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  • 3
    Electronic Resource
    Electronic Resource
    Determination of Moisture in Intact Gelatin Capsules by Near-Infrared Spectrophotometry (1995)
    Springer
    Pharmaceutical research 12 (1995), S. 161-163 
    Details
    ISSN: 1573-904X
    Keywords: gelatin capsules ; moisture content ; near-infrared spectrophotometry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1016219611132
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  • 4
    Electronic Resource
    Electronic Resource
    Interactions of calcium sulfite with soils and plants (1995)
    Springer
    Plant and soil 173 (1995), S. 329-335 
    Details
    ISSN: 1573-5036
    Keywords: calcium sulfite ; flue gas desulfurization residue ; oxidation ; sulfur dioxide ; toxicity ; Triticum aestivum L.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract CaSO3 is a by-product formed by several of the processes used for scrubbing SO2 from flue gas produced by coal-burning power generators. Using CaSO3 to improve the calcium status of acid soils would be a beneficial alternative to disposal in landfills. CaSO3 has biocidal properties and is used as a disinfectant and food and drink preservative. It is important to evaluate under what conditions application to soils would not harm plant growth. Laboratory experiments confirmed that two transformations of CaSO3 occurred in soil systems: (1) decomposition to produce SO2 gas, and (2) oxidation to calcium sulfate. Conversion to SO2 occurred in solution and soil at low pH, and acid soils treated with CaSO3 were initially toxic to seedling root growth. The degree of toxicity was time-dependent, with reduction in toxicity occurring as CaSO3 oxidized to calcium sulfate. Soil reaction also influenced toxicity, and at soil pH levels above 6, little seedling toxicity was evident.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00011471
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