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  • 1975-1979  (3)
  • 1970-1974
  • 1975  (3)
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  • 1975-1979  (3)
  • 1970-1974
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  • 1
    Electronic Resource
    Electronic Resource
    Crossed Immunoelectrophoretic Analysis of Precipitins to Candida albicans in Deep Candida Infection (1975)
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 4 (1975), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: By means of crossed immunoelectrophoresis with intermediate gel the precipitins to C. albicans in sera from 18 patients with deep Candida infection were compared with the findings in a control material consisting of sera from 169 'normal' controls (mainly healthy blood donors), 25 patients with oral candidiasis, 14 patients with vaginal candidiasis, and 6 persons without candidiasis giving false positive reactions by the double diffusion method. Up to 20 different precipitins were found in individual sera, and precipitins were demonstrated in all sera except in 6 'normal' controls. Of 692 precipitins 682 (98%) were identified and titrated in terms of the 78-component reference system described earlier for C. albicans. No free Candida antigens were found, but would have been detected by the method. The best criterion for discrimination between sera from patients and controls was the precipitin score, which accounts for number of precipitins and for titres. A precipitin score of more than 6 1/2 had a diagnostic sensitivity of 88.9% and a specificity of 99.5%. Eleven precipitin specificities were found solely in the patients' sera, but the highest sensitivity for a single precipitin was 33%. Until more evidence has accumulated in favour of a monospecific immunoassay it is therefore rational to use a complex antigen extract for further evaluations of diagnostic Candida serology and a short cut to standardization would be the introduction of the method used in the present study.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3083.1975.tb03830.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Formation of bimodal crystal textures in polypropylene (1975)
    Springer
    Journal of materials science 10 (1975), S. 870-886 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Electron microscopy, selected area electron diffraction, X-ray diffraction, and dynamic-mechanical testing have been used to study flow-crystallized and hot drawn isotactic polypropylene. As a result of these investigations, it was found that bimodal crystal textures can apparently be formed by at least two different treatments, but the corresponding morphologies are completely different. Flow-induced crystallization was observed to result in a microstructure of lamellae oriented perpendicular to the flow direction, while hot drawing of polypropylene films above a critical temperature produced a morphology of microfibrils lying parallel to the draw direction. Below this critical temperature, drawing produced a fibrillar morphology having only a typical unimodal fibre texture. As a result of information obtained here, a mechanism involving epitaxial deposition of chain segments onto growing lamellae is concluded to be responsible for formation of the bimodal crystal texture in flow-crystallized material.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01163082
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Polypropylene fibers melt-spun in the presence of torsional shear (1975)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 19 (1975), S. 1755-1766 
    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: Melt-spun fibers of isotactic polypropylene have been formed using specific combinations of shearing and elongational flow. Such rheological conditions were achieved with a take-up device capable of subjecting molten polymer filaments continuously to various combinations of torsional and elongational strains. Relationships were determined between mechanical properties of the resulting fibers and their molecular organizations. The results obtained indicated that these flow fields would produce fibers whose mean-preferred-chain-orientation directions ranged between being tilted radially from a direction parallel with the fiber axis (no torsional shear strain imposed) and having some additional tilt that is tangential with respect to the fiber circumference (some torsional shear strain imposed). It is not possible to resolve the observed helical chain tilts into contributions from crystalline and amorphous regions, respectively.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1975.070190625
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    Paper (German National Licenses)
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