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  • 1
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    Suppression of epididymal sperm antigenicity in the rabbit by uteroglobin and transglutaminase in vitro (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-02-25
    Description: There is evidence that the mammalian female genital tract is capable of responding immunologically when challenged with alloantigens. The antigenic properties of male gametes have been well delineated. However, it is only rarely that a female mammal ever responds immunologically to the male gametic antigens as a result of coitus. When a proposed mechanism of suppression of antigenicity of epididymal spermatozoa was tested experimentally, the results indicated that two proteins (uteroglobin and transglutaminase) present in the prostate may be responsible for suppressing sperm antigenicity in the rabbit.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mukherjee, D C -- Agrawal, A K -- Manjunath, R -- Mukherjee, A B -- New York, N.Y. -- Science. 1983 Feb 25;219(4587):989-91.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6130601" target="_blank"〉PubMed〈/a〉
    Keywords: Acyltransferases/*immunology/metabolism ; Animals ; Epididymis/immunology ; Female ; Glycoproteins/*immunology ; *Immune Tolerance ; Lymphocyte Activation ; Male ; Rabbits ; Semen/enzymology/*immunology ; Spermatozoa/*immunology ; Transglutaminases ; Uteroglobin/*immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
    Electronic Resource
    Electronic Resource
    Thermodynamics of micellization of Aerosol OT in polar and nonpolar solvents. A calorimetric study (1993)
    s.l. : American Chemical Society
    Langmuir 9 (1993), S. 1727-1730 
    Details
    ISSN: 1520-5827
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/la00031a020
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  • 3
    Electronic Resource
    Electronic Resource
    Studies of extraction exchange equilibria. Pb(II)-Cd(II) exchange in the CCl4-xanthate/water system (1995)
    Springer
    Monatshefte für Chemie 126 (1995), S. 1061-1073 
    Details
    ISSN: 1434-4475
    Keywords: Extraction exchange ; Equilibrium quotient ; Exchange reaction constant ; Separation factor ; Activity coefficient ; Thermodynamic equilibrium constant ; Free energy change
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Das Extraktions - Austausch - Gleichgewicht zwischen Cadmiumxanthat in Tetrachlorkohlenstoff und Bleiionen in Wasser beipH 5 bzw. 7.5 und 25±2°C wurde untersucht. Die Austauschisotherme wurde dazu verwendet, den TrennfaktorS Pb/S Cd zu berechnen. Die thermodynamische Gleichgewichtskonstante und die Differenz der freien Energie wurden aus den relevanten analytischen Daten und die Aktivitätskoeffizienten der Elektrolyten in der wässrigen Phase bzw. der durch Xanthat gebundenen Ionen in der Tetrachlormethanphase erhalten. Das nicht-ideale Verhalten der CCl4-Xanthat-Phase wurde ebenfalls dokumentiert. Aus der vorliegenden Studie ergibt sich, daß das Phänomen analog zu Ionenaustauschprozessen in synthetischen organischen Ionenaustauschern behandelt werden kann.
    Notes: Summary An extraction exchange equilibrium between cadmium xanthate in carbon tetrachloride and lead ions in water atpHs 5 and 7.5 was studied at 25±2°C. The exchange isotherm was used to calculate the separation factorS Pb/S Cd. The thermodynamic equilibrium constant and corresponding free-energy change per mole of exchange were calculated using the relevant analytical data and activity coefficients of the electrolyte ions in the aqueous phase and of the xanthate bound ions in the carbon tetrachloride phase. Non-ideal behaviour of the CCl4-xanthate phase was also ascertained. From the present study it appears that the phenomenon may be treated similar to ion-exchange processes in synthetic organic ion exchangers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00811377
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  • 4
    Electronic Resource
    Electronic Resource
    Calculation of excited-state properties of some small molecules: Comparative study of the CNDO/S and CNDO/2-vn-1 potential methods (1983)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 23 (1983), S. 1695-1705 
    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 transition energy and geometry of the lowest excited (nπ*) singlet and triplet states of CO, CS, HNO, H2CO, HFCO, and F2CO molecules are calculated by CNDO/S and CNDO/2-VN-1 potential methods, and the results are compared with those of experimental and ab initio theoretical studies, wherever available. In the calculation of the vertical transition energy, the performance of the CNDO/S method is seen to be generally more satisfactory than that of the CNDO/2-VN-1 potential method, while the reverse is true for the excited-state geometry. The CNDO/S method as such fails to describe the geometry of the excited state, but a combined version (CNDO/S-2) of CNDO/S and CNDO/2, as well as the CNDO/2-VN-1 potential method is fairly successful in this regard.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/qua.560230502
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  • 5
    Electronic Resource
    Electronic Resource
    Effect of semi-empirical parameters on the simple random-phase approximation calculations of conjugated hydrocarbons (1977)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 12 (1977), S. 639-654 
    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: Singlet-singlet transition energies, oscillator strengths, triplet energy levels, and the ground state correlation energy of a number of conjugated hydrocarbons have been calculated by the simple random-phase approximation (RPA) within the framework of the Pariser-Parr-Pople (PPP) model. The effect of semi-empirical parameters in such calculations has been examined in detail. A set of parameters has been deduced from these parametric studies which is found to yield results for the singlet spectra of the molecules in excellent agreement with experiment. It is, however, not possible to treat the triplet states using these same parameters, since they produce triplet instabilities in all the molecules. The triplet instability problem associated with semi-empirical RPA calculations has been discussed in detail.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/qua.560120405
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  • 6
    Electronic Resource
    Electronic Resource
    Photo-induced oxidation of aqueous solution of Na2[Mo(V)2O4EDTA] in neutral KBr and K2S2O8 medium (1996)
    Springer
    Journal of radioanalytical and nuclear chemistry 204 (1996), S. 349-361 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract When an aqueous solution of Na2[Mo(V)2O4EDTA] (ethylene diamine tetraacetate) was photolyzed in the presence of excess KBr and K2S2O8 at neutral pH, the complex was found to be oxidized due to the reactions of Br 2 −. and SO 4 −. , respectively. Oxidation of the complex was also observed due to the reactions of the complex with radiolytically generated Br 2 −. and SO 4 −. radicals. When the oxidation of the complex with SO 4 −. was conducted in an unbuffered solution, a chain reaction was observed in the oxidation of the complex. The time resolved kinetics for the formation and decay of different transient intermediates and the relevant rate constants were investigated with a flash photolysis technique, and a probable mechanism for the oxidation process was given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02060324
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  • 7
    Electronic Resource
    Electronic Resource
    Electron transfer oxidation kinetics of Na2[Mo2O4EDTA] by S2O82- ion in dilute acid medium (1997)
    New York, NY : Wiley-Blackwell
    International Journal of Chemical Kinetics 29 (1997), S. 269-274 
    Details
    ISSN: 0538-8066
    Keywords: Chemistry ; Physical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Na2(Mo2vO4EDTA).4H2O crystals have been prepared in pure form. Kinetics for the oxidation of the compound by S2O82- have been studied spectrophotometrically in dilute sulphuric acid medium. The effects of hydrogen ion concentration, metal ion concentration, S2O82- ion concentration, and temperature on the process have been studied. Rate equations have been derived to explain the experimental observations. On the basis of the observations, suitable mechanisms have been suggested. The kinetic parameters E*, ΔH≠, and ΔS≠ of the process have also been determined. © 1997 John Wiley & Sons, Inc. Int J Chem Kinet 29: 269-274, 1997
    Additional Material: 4 Ill.
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  • 8
    Electronic Resource
    Electronic Resource
    Base catalyzed hydrolysis of Aerosol OT in Aqueous and Aquo-Dioxane media (1994)
    New York, NY : Wiley-Blackwell
    International Journal of Chemical Kinetics 26 (1994), S. 1063-1074 
    Details
    ISSN: 0538-8066
    Keywords: Chemistry ; Physical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The OH- ion catalyzed hydrolysis of AOT and sodium mono-methyl succinate in aqueous and aquo-dioxane media has been studied. The second-order rate constant for the former has been found to be nearly ten times slower than that of the latter. At AOT concentrations above CMC, the rate constants become insensitive to the concentration in the studied range of temperature, 25°C-40°C. The activation parameters for the kinetic process have been found to be reasonable, negative entropy of activation has supported a stable transition state complex. A good enthalpy-entropy compensation of the kinetic process has been found both for AOT and sodium monomethyl succinate in aqueous and aquo-dioxane media supporting similar nature of the transition state complexes in the hydrolytic reactions. The enthalpies of hydrolysis of AOT and the half ester of succinic acid in aqueous and aquo-dioxane media have been also reported. © 1994 John Wiley & Sons, Inc.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/kin.550261103
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  • 9
    Electronic Resource
    Electronic Resource
    Temperature oscillations in bromate-gallic acid system: A calorimetric study (1995)
    New York, NY : Wiley-Blackwell
    International Journal of Chemical Kinetics 27 (1995), S. 561-568 
    Details
    ISSN: 0538-8066
    Keywords: Chemistry ; Physical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The oscillatory reaction between potassium bromate and gallic acid in sulfuric acid medium has been studied calorimetrically with and without ferroin indicator. Enthalpy changes during oscillations have increased with increasing bromate concentration in presence and absence of the indicator. Prominent catalytic activity of the indicator has been observed. An initial large enthalpy change has been observed in both uncatalyzed and catalyzed conditions prior to the starting of oscillation. Attempts have been made to correlate the main thermal events with the proposed mechanism of the reaction. © 1995 John Wiley & Sons, Inc.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/kin.550270606
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  • 10
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    Potential roles of osteopontin and  V 3 integrin in the development of coronary artery restenosis after angioplasty (1997)
    National Academy of Sciences
    Details
    Publication Date: 1997-08-19
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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