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  • 1
    Electronic Resource
    Electronic Resource
    Proteolytic activity and cleavage specificity of cathepsin E at the physiological pH as examined towards the B chain of oxidized insulin
    Amsterdam : Elsevier
    FEBS Letters 292 (1991), S. 53-56 
    Details
    ISSN: 0014-5793
    Keywords: B chain of oxidized insulin ; Cathepsin E ; Cleavage specificity ; Gastric mucosal aspartic proteinase ; Nph ; PAGE ; Proteolytic activity ; SDS ; cya ; cysteic acid ; nitrophenylalanine ; polyacrylamide gel electrophoresis ; sodium dodecyl sulfate
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0014-5793(91)80832-N
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  • 2
    Electronic Resource
    Electronic Resource
    Proteolytic activity and cleavage specificity of cathepsin E at the physiological pH as examined towards the B chain of oxidized insulin
    Amsterdam : Elsevier
    FEBS Letters 292 (1991), S. 53-56 
    Details
    ISSN: 0014-5793
    Keywords: B chain of oxidized insulin ; Cathepsin E ; Cleavage specificity ; Gastric mucosal aspartic proteinase ; Proteolytic activity
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0014-5793(91)80832-N
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Transport of a gas through asymmetric polysulfone membranes with deposited plasma-polymerized thin layer (1990)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 41 (1990), S. 2427-2436 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: A plasma-polymerized thin layer was deposited on the top surface of the skin layer of the asymmetric polysulfone (PSF) membrane to plug ultrafine pores passing through it. Trifluoromethane was used as the monomer gas of plasma polymerization. The steady-state permeation rates for oxygen and nitrogen through the asymmetric PSF membranes with the plasma modification were measured to evaluate the permselectivity and permeability. If ultrafine pores passing through the asymmetric membrane can be plugged by the plasma-polymerized thin layer, the separation factor of oxygen relative to nitrogen can be increased with the permeation rate coefficient of oxygen still kept large. This condition was met when the vaporization time of the cast solution during the preparation of an asymmetric membrane ranged from 10 to 120 s and the plasma polymerization time ranged from 15 to 30 min.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1990.070410942
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  • 4
    Electronic Resource
    Electronic Resource
    Viscosity of concentrated styrene solutions of polystyrene (1968)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 12 (1968), S. 9-11 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Viscosities of concentrated solutions of polystyrene of different intrinsic viscosities were measured at varying polymer concentration and temperature. By modifying Martin's equation, an empirical equation correlating the viscosity of the solution as a function of the polymer concentration, the intrinsic viscosity of the polymer, and temperature was obtained.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1968.070120102
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  • 5
    Electronic Resource
    Electronic Resource
    Polymerization in submonolayers of styrene monomer adsorbed from its vapor phase (1988)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 26 (1988), S. 1519-1527 
    Details
    ISSN: 0887-6266
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The surface coverage of porous glass (PD = 500 Å) by styrene adsorbed from its vapor (0.1-6 torr) was studied in a vacuum electrobalance. The adsorption isotherm of the monomer was analyzed by the BET method, and a full monolayer coverage was found to form at a relative pressure of 0.11, weighing 6 mg per gram of glass. Polymerization in submonolayers of adsorbed styrene was initiated by thermal decomposition of predeposited BPO and found to continue until all initiator decomposed, sample cooled, or vapor removed, hence allowing a controlled film thickness. The films were extracted in THF and analyzed by computerized GPC. Molecular weights were in the range 18000-69000. These were related to the rates of polymerization by the usual statistical correlations.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/polb.1988.090260713
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  • 6
    Electronic Resource
    Electronic Resource
    Mössbauer and X-ray photoelectron spectroscopic studies of prussian blue and its related compounds (1977)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 430 (1977), S. 241-249 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Mössbauer- und Röntgen-Photoelektronenspektroskopische Untersuchungen an Berlinerblau und verwandten VerbindungenDie 57Fe-Mössbauer-Spektren der drei isomorphen Verbindungen des Typs Fe4[MB(CN)6]3 · xH2O (MB = Fe, Ru bzw. Os) wurden im Temperaturbereich von -178 bis 25°C gemessen. Die Spektren der Ruthenium- und Osmium-Verbindungen sind sehr ähnlich dem des angereicherten 57Fe4[Fe(CN)6]3 · xH2O. Die Temperaturabhängigkeit der Isomerieverschiebung und der Quadrupolaufspaltung wird interpretiert als Ausdruck der Gitterdynamik. Die Röntgen-Photoelektronenspektren unterstützen die Schlußfolgerungen aus den Mössbauer-Untersuchungen.
    Notes: The 57Fe Mössbauer spectra of three isomorphous compounds of the type Fe4[MB(CN)6]3 · xH2O, where MB is Fe, Ru or Os, have been measured in the temperature range between -178 and 25°C. The spectral pattern of the ruthenium and osmium compounds is very similar to that of selectively enriched 57Fe4[Fe(CN)6]3 · xH2O. The temperature dependence of the isomer shift and quadrupole splitting is interpreted in terms of lattice dynamics. The X-ray photoelectron spectra also support the conclusions drawn from the Mössbauer study.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19774300123
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  • 7
    Electronic Resource
    Electronic Resource
    Korrelation zwischen Mössbauer-Isomerieverschiebungen und ESCA-Bindungsenergien (1981)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 483 (1981), S. 75-85 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Correlation between Mössbauer Isomer Shifts and ESCA Binding EnergiesThe correlation between core-electron binding energies and Mössbauer isomer shifts is investigated and discussed for low-spin pentacyanoferrates(II), high-spin iron(III) compounds and high-spin iron(II) halides. The Fe2p3/2 binding energies of the investigated pentacyano ferrates(II) increase with decreasing isomer shifts as a consequence of the increasing π acid strengths of the sixth ligands. In contrast, the electron binding energies in high spin iron(III) compounds and iron(II) halides increase with increasing isomer shifts. This correlation is caused by the σ donor properties and the electronegativity of the ligands.
    Notes: Der Zusammenhang zwischen core-Elektronen-Bindungsenergien und Mössbauer-Isomerieverschiebungen wird für low-spin-Pentacyanoferrate(II), high-spin-Eisen(III)-Verbindungen und high-spin-Eisen(II)-halogenide untersucht und diskutiert. Die Fe2p3/2-Bindungsenergien der untersuchten Pentacyanoferrate(II) nehmen mit Kleiner werdenden Isomerieverschiebungen als Folge zunehmender π-Säurestärken der sechsten Liganden zu. Im Gegensatz dazu wachsen die Bindungsenergien der high-spin-Eisen(III)-Verbindungen und Eisen(II)-Halogenide mit zunehmender Isomerieverschiebung. Ursache sind die σ-Donoreigenschaften und die Elektronegativität der Liganden.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19814831210
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  • 8
    Electronic Resource
    Electronic Resource
    Effect of organic solvents on the activity of glucoamylase (1986)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 28 (1986), S. 1172-1177 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Hydrolyses of maltose, maltotriose, and soluble starch catalyzed by glucoamylase (Asp. Niger) were carried out in the aqueous solutions of methanol, ethanol, ethylene glycol, and 1,4-dioxane at 40°C and at the optimum pH in the respective solutions. By the kinetic analysis based on the subsite model, it was shown that the intrinsic rate constant, Kint, was electrostatically affected by the dielectric constant of the hydroorganic solutions. The affinity of the third subsite, A3, which affects the apparent rate constant, K0, was correlated with the ×Gtr's of maltose and amino acid side chains.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260280807
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