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  • 2000-2004
  • 1995-1999  (4)
  • 1965-1969
  • 1999  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Effect of polymer composition on the production of cationic multihollow polymer particles by the stepwise acid/alkali method (1999)
    Springer
    Colloid & polymer science 277 (1999), S. 589-594 
    Details
    ISSN: 1435-1536
    Keywords: Key words Hollow ; Particle ; Emulsion polymerization ; Morphology ; Swelling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The effect of the polymer composition on the formation of multihollow structures formed within submicron-sized styrene–butyl acrylate–dimethylaminoethyl methacrylate terpolymer particles by the “acid/alkali method” proposed by the authors was examined. The cationic particles were produced by seeded emulsion terpolymerization with 2,2′-azobis(2-amidinopropane) hydrochloride initiator. The dimethylaminoethyl methacrylate content and the glass-transition temperature of the terpolymer greatly affected the formation of the multihollow structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003960050430
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Prader-Willi syndrome in a child with XYY (1999)
    Springer
    Journal of human genetics 44 (1999), S. 412-413 
    Details
    ISSN: 1435-232X
    Keywords: Key words XYY syndrome ; Prader-Willi syndrome ; Uniparental maternal disomy ; Non-disjunction of chromosome
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract We report a 26-month-old boy with XYY syndrome, with the complication of Prader-Willi syndrome (PWS) due to uniparental maternal disomy of chromosome 15. To our knowledge, this is the first case of XYY syndrome and PWS. Clinical findings were fully compatible with the diagnostic criteria for PWS. Molecular analysis revealed a maternal heterodisomy of chromosome 15, indicating that non-disjunction of chromosome 15 had occurred at maternal meiosis I, and that the non-disjunction of chromosome Y and of chromosome 15 had occurred independently.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100380050189
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Spin dynamics of the diluted antiferromagnet FexMg1-xTiO3 by muon spin relaxation method (1999)
    Springer
    Hyperfine interactions 120-121 (1999), S. 611-614 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The diluted antiferromanget FexMg1-xTiO3 which transforms from the antiferro-magnetic (AF) system to the cluster-glass (CG) one with dilution is investigated by muon spin relaxation measurements. We compare the concentration dependence of the spin dynamics of FexMg1-xTiO3 with that of FexMn1-xTiO3 and MnxMg1-xTiO3 which transform from the AF system to the spin-glass one depending on x. It is found that the shape and the temperature variation of the time spectrum in FexMg1-xTiO3 for AF to CG depends on the Fe concentration most strongly.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1017011304227
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Spin dynamics of diluted antiferromagnets MnxMg1-xTiO3 by μSR method (1999)
    Springer
    Hyperfine interactions 120-121 (1999), S. 615-618 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The diluted antiferromagnet MnxMg1-xTiO3 transforms from the antiferromagnet (AF) to the spin-glass (SG) system at x ∼ 0.6. In order to study the microscopic nature of spin dynamics and ordering, we performed muon spin relaxation measurements for the powder samples of x=1.0∼ 0.55 and examined the concentration dependence. From these results, a drastic change in the spin dynamics was found to occur at x ∼ 0.6.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1017063321065
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    Paper (German National Licenses)
    Fulltext
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