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  • 1
    Title: Symbolic and Algebraic Computation. International Symposium ISSAC'88 : 1988, Rome, Italy; 358
    Contributer: Gianni, P.
    Publisher: Berlin u.a. :Springer,
    Year of publication: 1989
    Pages: 543 S.
    Series Statement: Lecture notes in computer science 358
    Type of Medium: Book
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, U.K. and Cambridge, USA : Blackwell Science Ltd
    Scandinavian journal of immunology 43 (1996), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Adjuvants are agents that can induce strong immunity to different antigens. They are thought to act mainly by stimulating macrophages, causing the release of cytokines, which in turn induce an inflammatory focus necessary for the adjuvant action. The authors found that catalase, ascorbic acid, N-acetylcysteine and glutathione are able to inhibit the enhancing effect of incomplete Freund adjuvant (IFA) and polyoxyethylated castor oil upon the humoral immune response to sheep red blood cells (SRBC). None of the anti-oxidants tested inhibited the basal immune response to the antigen. In addition, mice inoculated with different concentrations of hydrogen peroxide showed an enhanced response against SRBC, mimicking the effect observed with adjuvants. Delayed type hypersensitivity induced by SRBC in the presence of IFA was also inhibited by catalase. In conclusion, the report indicates that oxygen radicals are crucial molecules involved in the adjuvant effect observed in SRBC immunized mice.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Applicable algebra in engineering, communication and computing 7 (1996), S. 1-14 
    ISSN: 1432-0622
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mathematics , Technology
    Notes: Abstract We study the problem of the computation of the square-free decomposition for polynomials over fields of positive characteristic. For fields which are explicitly finitely generated over perfect fields, we show how the classical algorithm for characteristic zero can be generalized using multiple derivations. For more general fields of positive characteristic one must make an additional constructive hypothesis in order for the problem to be decidable. We show that Seidenberg'sCondition P gives a necessary and sufficient condition on the fieldK for computing a complete square free decomposition of polynomials with coefficients in any finite algebraic extension ofK.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Applicable algebra in engineering, communication and computing 7 (1995), S. 1-14 
    ISSN: 1432-0622
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mathematics , Technology
    Notes: Abstract.  We study the problem of the computation of the square-free decomposition for polynomials over fields of positive characteristic. For fields which are explicitly finitely generated over perfect fields, we show how the classical algorithm for characteristic zero can be generalized using multiple derivations. For more general fields of positive characteristic one must make an additional constructive hypothesis in order for the problem to be decidable. We show that Seidenberg’s Condition P gives a necessary and sufficient condition on the field K for computing a complete square free decomposition of polynomials with coefficients in any finite algebraic extension of K.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1572-8927
    Keywords: Heat capacity ; high temperature ; mixed electrolytes solution ; sodium chloride ; potassium chloride ; sodium sulphate ; potassium sulphate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Specific heats at constant pressure for the mixed system K/Na/Cl/SO4 in H2O have been obtained from heat content measurements by means of a drop calorimeter between 60 and 220°C over the salt concentration range 0.5–5m, with ionic strengths up to 7.5. Measurements have also been made on aqueous K2SO4 solutions in the same temperature range between 0.3 and 1.6m. The heat capacities of the quaternary system were represented using the semiempirical Pitzer equations neglecting the mixed interaction terms as a first approximation. A comparison of experimental with calculated data shows that the ability of this method to describe the system is satisfactory even at rather high concentrations, but only for solutions of low sulphate ion content.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of solution chemistry 18 (1989), S. 447-461 
    ISSN: 1572-8927
    Keywords: Heat capacity ; enthalpy of dilution ; aqueous NaAl(OH)4 ; high temperature ; flow calorimeter ; aluminum ion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The apparent molar heat capacities, Cp,ϕ, of alkaline aqueous solutions of aluminum ion in excess NaOH have been measured at temperatures between 50 and 250°C in the overall molality range 0.3–1.7 mol-kg−1. Enthalpies of dilution, ΔLϕ, have also been determined at 99°C and apparent molar relative enthalpies, Lϕ, were calculated starting from 2.16 mol-kg−1 as the maximum concentration. Measurements of the above quantities have been performed by means of a differential flow calorimeter built in our laboratory and already described. The thermodynamic data obtained and the corresponding quantities for aqueous NaOH previously determined have been fitted to the equations of the Pitzer ionic interaction model to obtain parameters relative to aqueous NaAl(OH)4. These parameters permit the calculation of Cp,ϕ, and Lϕ for this species over the examined range of temperatures and concentrations.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of solution chemistry 17 (1988), S. 481-497 
    ISSN: 1572-8927
    Keywords: Heat capacity ; enthalpy of dilution ; aqueous NaOH ; aqueous Na2SO4 ; high temperature ; flow calorimeter
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The apparent molar heat capacity, C p,ϕ, of aqueous NaOH has been measured at temperatures between 50 and 250°C and molalities from 0.05 to 1.5 mol-kg−1. Enthalpies of dilution ΔLϕ were also determined at 99°C and apparent molar relative enthalpies Lϕ were calculated up to 1.9 m. Measurements were performed by means of a flow calorimetric apparatus constructed in our laboratory and standardized for C p,ϕ and ΔLϕ with aqueous Na2SO4 and with the formation of water from its ions, respectively. Characteristics and performance of this calorimeter are described in detail. Pitzer's semiempirical equations are used for the representation of the results and a general fitting of C p,ϕ data is reported using also recent literature values measured between 4 and 55°C. The fitted parameters are finally utilized, through an integration procedure, to derive a general equation to calculate Lϕ at any temperature between 4 and 250°C.
    Type of Medium: Electronic Resource
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