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  • 1
    Electronic Resource
    Electronic Resource
    Activity measurements in aqueous mixed electrolyte solutions. 2. Hydrochloric acid-choline chloride and hydrochloric acid-acetylcholine chloride mixtures of constant total ionic strength (1981)
    s.l. : American Chemical Society
    Journal of chemical & engineering data 26 (1981), S. 204-211 
    Details
    ISSN: 1520-5134
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/je00024a035
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  • 2
    Electronic Resource
    Electronic Resource
    N2- and C-7-Substituted actinomycin D analogs: synthesis, DNA-binding affinity, and biochemical and biological properties. Structure-activity relationship (1981)
    s.l. : American Chemical Society
    Journal of medicinal chemistry 24 (1981), S. 1052-1059 
    Details
    ISSN: 1520-4804
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jm00141a007
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  • 3
    Electronic Resource
    Electronic Resource
    Methods of computation of suspended load from bed materials and flow parameters (1981)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 28 (1981), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Computation of the grain-size distribution of the suspended load above a sand bed must take into consideration: (1) sorting processes from the bed to the bed layer and (2) sorting between the bed layer and suspension. Grain-size distributions of the bed layers above sand beds of three different types have been computed in this work, both by the Einstein and the Gessler methods. Using these as references, suspended load distributions have been obtained in each case by the Rouse suspension equation. A new formula has also been developed in partial modification of Hunt's method for direct computation of bed load and suspended load from a bed's grain-size distribution and flow parameters.Comparison of the computed data with actual observations in laboratory flumes show that no one method is particularly superior to the others, but the present method is advantageous because it affords direct computation of the suspended load from a bed's grain-size distribution, without going through an intermediate stage (bed load). The possible sources of error in each of the methods have been discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1981.tb01942.x
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  • 4
    Electronic Resource
    Electronic Resource
    Impact parameter study in multiparticle production at 70 GeV/c (1981)
    Springer
    Czechoslovak journal of physics 31 (1981), S. 1066-1069 
    Details
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract This paper presents a study of the experimental lower boundb L, on the root-mean-squared impact parameter of the multiparticle production in 70 GeV/c p-nucleon interaction. It has been observed that theb L decreases with increasing final state multiplicity (n) at this fixed energy. The results are in good agreement with those of other authors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01604771
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  • 5
    Electronic Resource
    Electronic Resource
    Post-translational processing of 7S and 11S components of soybean storage proteins (1981)
    Springer
    Plant molecular biology 1 (1981), S. 19-34 
    Details
    ISSN: 1573-5028
    Keywords: Glycine max ; storage protein biosynthesis ; in vitro translation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The synthesis and processing of the major storage proteins in soybean cotyledons was studied both in vivo and in vitro. The α and α′ subunits of 7S as well as the 11S proteins are synthesized as higher molecular weight-precursors on membrane-bound polysomes. The initial translation products of the 7S are proteolytically cleaved during translation suggesting the removal of a ‘signal peptide’ as evidenced by the presence of 2α and 2α′ peptides immunoreactive with 7S antibody in the in vitro chain completion products of the membrane-bound polysomes. This is followed or accompanied by cotranslational glycosylation, which increases their size equivalent to that of initially-synthesized precursors. In vivo pulse-labelled 7S α and α′ products are of slightly higher molecular weights than the immunoprecipitable chain-completion products, indicating further post-translational modifications. A slow post-translational processing during a period of 1.5 to 16 h yields the final 7S α and α′ glycoproteins. Acidic and basic subunits of the 11S protein appear to be synthesized from common large molecular weight (60K-59K) precursors. Antibodies to the 11S acidic component recognize both acidic and basic domains in the precursor while those raised against basic subunits appear to be specific for that region only. The processing of the 11S precursor is also very slow and occurs post-translationally. This slow rate of processing, coupled with a temporal difference in the synthesis of 7S and 11S components, suggests a highly coordinated mechanism for synthesis and packaging of these proteins into protein bodies during seed development.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00023011
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  • 6
    Electronic Resource
    Electronic Resource
    Bounding solutions of systems of equations using interval analysis (1981)
    Springer
    BIT 21 (1981), S. 203-211 
    Details
    ISSN: 1572-9125
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract We introduce some variations of the interval Newton method for bounding solutions to a set ofn nonlinear equations. It is pointed out that previous implementations of Krawczyk's method are very inefficient and an improved version is given. A superior type of Newton method is introduced.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01933165
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  • 7
    Electronic Resource
    Electronic Resource
    Jack-knifing the ratio and the product estimators in double sampling (1981)
    Springer
    Metrika 28 (1981), S. 245-256 
    Details
    ISSN: 1435-926X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Summary Almost unbiased ratio and product type estimators have been obtained with the help of the Jack-Knifing technique for simple random sampling in two phases. The mean square errors of the resulting estimators have been compared with those of the corresponding usual (biased) estimators and it has been found that they are approximately same. This study generalizes similar single sampling results ofDurbin [1959],Shukla [1976] and others.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01902898
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  • 8
    Electronic Resource
    Electronic Resource
    Self-consistent calculation of 1s2s3S state of helium and heliumlike ions (1981)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 19 (1981), S. 283-291 
    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: In this paper we present a simple method within the coupled Hartree-Fock framework to calculate the 1s2s 3S state of helium and heliumlike ions. The results are in very good agreement with those obtained by the use of multiterm correlated wave functions. Some interesting observations associated with the wave function are presented.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/qua.560190209
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  • 9
    Electronic Resource
    Electronic Resource
    Interaction of tylophorinidine with lysozyme (1981)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 20 (1981), S. 523-531 
    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: The interaction of tylophorinidine (TPD) with lysozyme - a model protein - with biological activity, was investigated by determining its fluorescence and by assessing its activity under various conditions. The results indicated that TPD associated with lysozyme at pH 9.2 efficiently with an association constant Ka of 3.3 X 104 M-1 at 26°C. Ka increased with the increasing temperature in the range 26 to 55°C; the calculated enthalpy change ΔH was found to be 2.3 kcal/mol. Under the same conditions as above TPD also associated with the free amino acid tryptophan with a Ka of 1.7 X 104 M-1 indicating half the efficiency of its association with protein lysozyme. TPD associated lysozyme was less active than the uncomplexed enzyme in the above temperature range although beyond 45°C the inhibition was more significant. The results imply that TPD binds lysozyme outside the cleft region in the temperature range studied here. However, with increasing temperature the cleft region is gradually widened and/or the whole molecule is expanded such that the accommodation of whole or part of the TPD molecule is facilitated leading to the blockage of lytic activity.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/qua.560200224
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  • 10
    Electronic Resource
    Electronic Resource
    Effect of open boundary condition on numerical simulation of three-dimensional hydrothermal behavior of Biscayne Bay, Florida (1981)
    Chichester : Wiley-Blackwell
    International Journal for Numerical Methods in Fluids 1 (1981), S. 145-169 
    Details
    ISSN: 0271-2091
    Keywords: Numerical Model ; Estuary ; Open Boundary Condition ; Three dimensional ; Hydrothermal Biscayne Bay ; Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: A three-dimensional time dependent free-surface model has been used to simulate the velocity and temperature distributions in Biscayne Bay, an estuarine basin in South Florida. Comparisons with tide gauge data and airborne infrared temperature data have been made. Analyses of three-dimensional velocity structure, phase relationships of velocity with depth and horizontal location have been conducted.One of the major concerns with three-dimensional models is the specification of conditions at open-boundaries, since it is rare that complete time dependent variations of variables at these boundaries are available. Two sets of approximate boundary conditions at the Biscayne Bay-Atlantic Ocean interface have been used for computations. It was found that specification of averaged surface height variation at open boundaries yield significantly better results than specification of estimated values of velocity.
    Additional Material: 22 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/fld.1650010205
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