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  • 1990-1994  (5)
  • 1970-1974  (5)
  • 1955-1959  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Titration of Elemental Sulfur with Solutions of Sodium Cyanide (1955)
    s.l. : American Chemical Society
    Analytical chemistry 27 (1955), S. 369-371 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac60099a011
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Carbon-isotope constraints on fluid advection during contrasting examples of incipient charnockite formation (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of metamorphic geology 11 (1993), S. 0 
    Details
    ISSN: 1525-1314
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Abstract Incipient charnockite formation within amphibolite facies gneisses is observed in South India and Sri Lanka both as isolated sheets, associated with brittle fracture, and as patches forming interconnected networks. For each mode of formation, closely spaced drilled samples across charnockite/gneiss boundaries have been obtained and δ13C and CO2 abundances determined from fluid inclusions by stepped-heating mass spectrometry.Isolated sheets of charnockite (c.50 mm wide) within biotite–garnet gneiss at Kalanjur (Kerala, South India) have developed on either side of a fracture zone. Phase equilibria indicate low-pressure charnockite formation at pressures of 3.4 ± 1.0 kbar and temperatures of about 700°C (for XH2O= 0.2). Fluid inclusions from the charnockite are characterized by δ13C values of −8% and from the gneiss, 2 m from the charnockite, by values of −15%. The large CO2 abundances and relatively heavy carbon-isotope signature of the charnockite can be traced into the gneiss over a distance of at least 280 mm from the centre of the charnockite, whereas the reaction front has moved only 30 mm. This suggests that fluid advection has driven the carbon-isotope front through the rock more rapidly than the reaction front. The carbon-front/reaction-front separation at Kalanjur is significantly larger than the value determined from a graphite-bearing incipient charnockite nearby, consistent with the predictions of one-dimensional advection models.Incipient charnockites from Kurunegala (Sri Lanka) have developed as a patchy network within hornblende–biotite gneiss. CO2 abundances rise to a peak near one limb of the charnockite, and isotopic values vary from δ13C of c.−5.5% in the gneiss to −9.5% in the charnockite. The shift to lighter values in the charnockite can be ascribed to the formation of a CO2-saturated partial melt in response to influx of an isotopically light carbonic fluid.Thus, incipient charnockites from the high-grade terranes of South India and Sri Lanka reflect a range of mechanisms. At shallower structural levels non-pervasive CO2 influxed along zones of brittle fracture, possibly associated with the intrusion of charnockitic dykes. At deeper levels, in situ melting occurred under conditions of ductile deformation, leading to the development of patchy charnockites.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1525-1314.1993.tb00193.x
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  • 3
    facet.materialart.
    Unknown
    de Vaux, R., "Histoire ancienne d'Israël des origines à l'installation en Canaan" (Book Review) (1973)
    Manchester : Periodicals Archive Online (PAO)
    Journal of Semitic studies. 18 (1973) 277 
    Details
    ISSN: 0022-4480
    Topics: Linguistics and Literary Studies , Ethnic Sciences
    Notes: REVIEWS
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:4126-1973-018-00-000028
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  • 4
    facet.materialart.
    Unknown
    Stolz, F. "Jahwes und Israels Kriege: Kriegstheorien und Kriegserfahrungen im Glauben des alten Israels" (Book Review) (1973)
    London : Periodicals Archive Online (PAO)
    Journal of theological studies. n.s.:24 (1973) 531 
    Details
    ISSN: 0022-5185
    Topics: Theology and Religious Studies
    Notes: AUTHORS AND BOOKS REVIEWED OR NOTICED
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:f198-1973-024-00-000190
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  • 5
    Electronic Resource
    Electronic Resource
    Production of charged hadrons by positive muons on deuterium and xenon at 490 GeV (1994)
    Springer
    The European physical journal 61 (1994), S. 179-198 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Results on the production of charged hadrons in muon-deuteron and muon-xenon interactions are presented. The data were taken with the E665 spectrometer, which was exposed to the 490 GeV muon beam of the Tevatron at Fermilab. The use of a streamer chamber as vertex detector provides nearly 4π acceptance for charged particles. The μD data are compared with the μXe data in terms of multiplicity distributions, average multiplicities, forward-backward multiplicity correlations, rapidity and transverse momentum distributions and of two-particle rapidity correlations of charged hadrons. The data cover a range of invariant hadronic massesW from 8 to 30 GeV.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01413096
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Global stability and the restricted 3-body problem (1973)
    Springer
    Celestial mechanics and dynamical astronomy 7 (1973), S. 421-437 
    Details
    ISSN: 1572-9478
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Global stability regions are found for classi orbits of the circular restricted 3-body problem for primary masses equal and Jacobi constantK〉15.5. As this constant decreases, the stability, region shrinks extremely rapidly.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01227508
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  • 7
    Electronic Resource
    Electronic Resource
    The stability of motion in a periodic cubic force field (1970)
    Springer
    Celestial mechanics and dynamical astronomy 2 (1970), S. 228-236 
    Details
    ISSN: 1572-9478
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The non-linear differential equation $$\ddot x + p(t)x^3 = 0$$ , wherep(t) is a periodic square wave function of time with period τ, has been integrated by using a table of Jacobian elliptic functions. In the neighborhood of a typical elliptic fixed point, namely that for 11τ, 12-decimal accuracy has been used to determine a region which is stable.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01229497
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  • 8
    Electronic Resource
    Electronic Resource
    The stability of an area-preserving mapping (1972)
    Springer
    Celestial mechanics and dynamical astronomy 5 (1972), S. 407-427 
    Details
    ISSN: 1572-9478
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In many cases, the evolution of a Hamiltonian system can be represented by an area-preserving mapping of the plane onto itself. The stability or instability of the dynamical system is reflected in the derived mapping. The mappingT(x, y)=(x', y'): $$\begin{gathered} x\prime = x + a(y - y^3 ) \hfill \\ y\prime = y - a(x\prime - x\prime ^3 ) \hfill \\ \end{gathered} $$ was studied in order to determine methods of readily compartmentalizing the plane into regions of stable and unstable behavior under many applications ofT, without resorting to costly and frequently inaccurate methods requiring computation of thousands of maps. The concept of separatrices, which exist for perfectly integrable systems, is replaced by the more general idea of extended eigenvectors from hyperbolic fixed points of the mappings, where the eigenvectors are those of the matrix representing the mapping linearized in the neighborhood of the fixed point. It was demonstrated by Bartlett that these extended eigenvectors, or eigencurves, from neighboring hyperbolic fixed points, may intersect each other to form intricate networks of intersecting loops. This area will be stable if the ratio of loop area to cell area is very small, of the order of 10−5 for the above mapping. Generally, if the oscillation cannot be seen, one should act as if the entire area of the cell is stable.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01228436
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  • 9
    Electronic Resource
    Electronic Resource
    Rapid identification of Clostridium botulinum colonies by in vitro toxicity and antimicrobial susceptibility testing (1994)
    Springer
    World journal of microbiology and biotechnology 10 (1994), S. 27-29 
    Details
    ISSN: 1573-0972
    Keywords: Clostridium botulinum ; identification ; immunoassay ; resistance ; toxigenicity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Identification of Clostridium botulinum is usually based on toxin detection of broth culture by mouse bioassay and requires 7 to 10 days to complete. Here, we describe an alternative in vitro procedure for direct identification of C. botulinum (types A and B) colonies which can be completed in 48 h. The method is based on toxigenicity of colonies demonstrable by enzyme immunoassay and resistance of C. botulinum to antimicrobial agents, sulpha-methoxazole, trimethoprim and cycloserine.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00357557
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  • 10
    Electronic Resource
    Electronic Resource
    Kinetics of colloid formation during the preparation of sol-gel zirconia (1994)
    Springer
    Journal of sol gel science and technology 2 (1994), S. 215-220 
    Details
    ISSN: 1573-4846
    Keywords: zirconia ; hydrolysis kinetics ; precursor chemistry ; zirconium alkoxides
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The formation of zirconia colloids by hydrolysing zirconium n-propoxide in n-propanol has been investigated by simultaneous, multi-angle static and dynamic light scattering, and vibrational spectroscopy, as a function of reactant concentration, water-to-alkoxide mole ratio and temperature. The overall hydrolysis/condensation reaction followed pseudo 2nd-order kinetics at 303 K, with an induction period of 〈1 to 24 hours. The induction period could be substantially reduced by increasing the temperature to 348 K. For hydrolysis with 3.6 moles of water per mole of alkoxide, the apparent activation energy was 24 kJ mol−1. Such a low activation energy implies that hydrolysis occurs readily over the temperature range investigated (303–348 K). During the induction period, processing with stoichiometric, or excess, water produced “oxy-hydroxides”, while “hydrated oxides” formed under water-deficient conditions. The hydrolysis reactions yielded zirconia colloids with equivalent spherical, z-averaged diameters of 〈200 nm. The colloids exhibited fractal dimensions of 3.0, with a low size-polydispersity, inferring the formation of dense, monodispersed spherical particles. SEM observations confirmed these results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00486244
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