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  • 1
    Electronic Resource
    Electronic Resource
    Studies on ultrastructure and host range of aChlorella attacking virus (1986)
    Springer
    Protoplasma 135 (1986), S. 162-165 
    Details
    ISSN: 1615-6102
    Keywords: Alga ; Chlorella ; Ecology ; Virus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A tail-less polygonal virus with a prominent capsid of about 140–150 nm in diameter and about 14–15 nm in thickness has been isolated from a freshwater pond. It shows a marked host specificity in attacking only an endosymbioticChlorella sp. isolated fromParamecium bursaria (Ciliata). Viral replication starts in the algal cytoplasm and both autospores and old cells are lysed. The ecology of the virus in the freshwater habitat is discussed. Screening tests for further phycoviruses were not successful.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01277009
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  • 2
    Electronic Resource
    Electronic Resource
    Andreev reflection on the Ag−BaPb1−x Bi x O3 microconstriction: Temperature and magnetic field dependence (1997)
    Springer
    Journal of low temperature physics 106 (1997), S. 291-296 
    Details
    ISSN: 1573-7357
    Keywords: 74.50 ; 74.60e
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The point-contact spectroscopy has been performed on the normal metal-superconductor microconstriction Ag−BaPb1−xBixO3. The conductance curves of our junctions reveal almost ideal Andreev reflection behavior described by theBlonder-Tinkham-Klapwijk theory, with the in-gap conductance twice higher than the conductance at higher voltages. We studied the effect of the temperature and magnetic field on the Andreev reflection. The temperature dependence of the energy gap (determined from the BTK theory) follows the BCS prediction. The value of the reduced gap yields a weak coupling strength in BaPb1−xBixO3. ¿From magnetic measurements up to 10 Tesla the temperature dependence of the upper critical field Hc2 has been determined and found to follow the Werthamer-Helfand-Hohenberg prediction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02399628
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    Paper (German National Licenses)
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