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  • Qualitative analysis  (2)
  • Aromatic aldehydes  (1)
  • Atomic, Molecular and Optical Physics  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Nukleophile Additionen an Doppelbindungssysteme II. die Kinetik der Reaktion aromatischer Aldehyde mit Sulfit (1981)
    Springer
    Monatshefte für Chemie 112 (1981), S. 421-428 
    Details
    ISSN: 1434-4475
    Keywords: Aromatic aldehydes ; Nucleophile addition ; Stopped flow ; Temperature jump
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The rate constants of the addition of sulfit to aromatic aldehydes have been measured directly atpH=7 using stopped flow and temperature jump methods.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00901820
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  • 2
    Electronic Resource
    Electronic Resource
    Mutation in autocatalytic reaction networks (1992)
    Springer
    Journal of mathematical biology 30 (1992), S. 597-632 
    Details
    ISSN: 1432-1416
    Keywords: Autocatalysis ; Mutation ; Perturbation theory ; Qualitative analysis ; Replication dynamics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Mathematics
    Notes: Abstract A class of kinetic equations describing catalysed and template induced replication, and mutation is introduced. This ODE in its most general form is split into two vector fields, a replication and a mutation field. The mutation field is considered as a perturbation of the replicator equation. The perturbation expansion is a Taylor series in a mutation parameter λ. First, second and higher order contributions are computed by means of the conventional Rayleigh-Schrödinger approach. Qualitative shifts in the positions of rest points and limit cycles on the boundary of the physically meaningful part of concentration space are predicted from flow topologies. The results of the topological analysis are summarized in two theorems which turned out to be useful in applications: the rest point migration theorem (RPM) and the limit cycle migration theorem (LCM). Quantitative expressions for the shifts of rest points are computed directly from the perturbation expansion. The concept is applied to a collection of selected examples from biophysical chemistry and biology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00175609
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  • 3
    Electronic Resource
    Electronic Resource
    Mutation in autocatalytic reaction networks (1992)
    Springer
    Journal of mathematical biology 30 (1992), S. 597-631 
    Details
    ISSN: 1432-1416
    Keywords: Autocatalysis ; Mutation ; Perturbation theory ; Qualitative analysis ; Replication dynamics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Mathematics
    Notes: Abstract A class of kinetic equations describing catalysed and template induced replication, and mutation is introduced. This ODE in its most general form is split into two vector fields, a replication and a mutation field. The mutation field is considered as a perturbation of the replicator equation. The perturbation expansion is a Taylor series in a mutation parameter λ. First, second and higher order contributions are computed by means of the conventional Rayleigh-Schrödinger approach. Qualitative shifts in the positions of rest points and limit cycles on the boundary of the physically meaningful part of concentration space are predicted from flow topologies. The results of the topological analysis are summarized in two theorems which turned out to be useful in applications: the rest point migration theorem (RPM) and the limit cycle migration theorem (LCM). Quantitative expressions for the shifts of rest points are computed directly from the perturbation expansion. The concept is applied to a collection of selected examples from biophysical chemistry and biology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00948894
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  • 4
    Electronic Resource
    Electronic Resource
    LCAO-MO studies on hydrogen bonding: The interaction between carbonyl and hydroxyl groups (1969)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 3 (1969), S. 851-871 
    Details
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Potential curves that show the energy dependence of hydrogen bonds between carbonyl and hydroxyl groups on the O—H bond length, on the distance between the molecules, and on the angle between the functional groups have been calculated with the CNDO/2 method. The results are presented for a small model system-formaldehyde/water - and for the dimer of formic acid. Good agreement is obtained with the available experimental data. The influence of the molecular geometry on the calculated results is discussed.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/qua.560030608
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