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  • 1
    Electronic Resource
    Electronic Resource
    Mapping of murine YACs containing the genesCea2 andCea4 after B1-PCR amplification and FISH-analysis (1995)
    Springer
    Chromosome research 3 (1995), S. 473-478 
    Details
    ISSN: 1573-6849
    Keywords: B1-primers ; carcinoembryonic antigen ; FISH ; gene mapping ; mouse ; PCR ; pregnancy-specific glycoprotein
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract PCR with primers specific for the murine B1 consensus sequence allows amplification of DNA from murine sources. We have used B1-PCR for amplifying yeast artificial chromosome (YAC) DNA which can be used to localize single YACs by fluorescencein situ hybridization. The genes for the pregnancy-specific glycoproteins Cea2 and Cea4, both belonging to the large carcinoembryonic antigen gene family, were localized by chromosomalin situ suppression hybridization of three YAC clones to murine chromosome 7A2-A3. This was facilitated by the use of the mouse lymphoma cell line WMP/WMP which contains nine pairs of Robertsonian fusion chromosomes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00713961
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Studies of the critical velocity of superfluid4he in a 2 μm by 2 μm aperture in a thin foil at various frequencies (1995)
    Springer
    Journal of low temperature physics 101 (1995), S. 743-748 
    Details
    ISSN: 1573-7357
    Keywords: 67.40.Hf ; Vs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Measurements of the critical velocity behavior of oscillatory superfluid4He flow through a 2 μm by 2 μm square aperture in a 0.1 μm thick titanium foil are being made at temperatures between 0.36 K and 2.1 K and at pressures of less than 0.4 bar at various frequencies between 50 Hz and 1000 Hz. The purpose of this work is to study a micron-size aperture for possible frequency-dependent deviations from the critical velocity behavior seen in submicron-size apertures. Preliminary results show a nearly linear decrease of critical velocity with increasing temperature that is similar to the temperature dependences seen in smaller apertures and that is approximately independent of frequency. However, at frequencies above 500 Hz, a region appears at the lowest temperatures in which supercritical behavior is dominated by large energy-loss events requiring a number of half-cycles for completion, a region that extends up to 1.1 K at 970 Hz.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00753384
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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