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  • 1995-1999  (4)
  • Agglutination  (2)
  • 17-dione  (1)
  • PACS: 84.32; 77.80; 81.15; 82.50  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Characteristics of Ba0.5Sr0.5TiO3 thin films grown by ultraviolet-assisted pulsed laser deposition (1999)
    Springer
    Applied physics 69 (1999), S. S787 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 84.32; 77.80; 81.15; 82.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. The microstructure and properties of barium strontium titanate (BST) thin films grown by an in situ ultraviolet-assisted (UV-assisted) pulsed laser deposition (UVPLD) technique are reported in this paper. In comparison with BST films grown by conventional pulsed laser deposition (PLD) under similar conditions, but without UV illumination, the UVPLD-grown films exhibited improved structural, electrical, and optical properties. X-ray photoelectron spectroscopy showed that when exposed to atmosphere, Ba atoms from the outermost layers formed a thin layer of barium carbonate, which negatively affects the film electrical characteristics. UVPLD-grown films exhibited a smaller amount of Ba atoms within the carbonate layer, resulting in better electrical characteristics. The dielectric constant of 40-nm-thick films deposited at 650 °C by UVPLD and PLD were determined to be 281 and 172, respectively. The leakage current density of the UVPLD-grown films was in the mid-10-8 A/cm2 range, a factor of 2 lower than that obtained from PLD-grown films.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003390051530
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Diversity of potential microbial parasites colonizing sclerotia of Macrophomina phaseolina in soil (1996)
    Springer
    Biology and fertility of soils 22 (1996), S. 136-140 
    Details
    ISSN: 1432-0789
    Keywords: Macrophomina phaseolina ; Antagonists ; Germination ; Agglutination ; Pseudomonas fluorescence ; Trichoderma harzianum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The colonization of Macrophomina phaseolina sclerotia by microbial parasites was evaluated in unsterilized field soil at different levels of soil moisture (0,-5, and-10 kPa) and temperature (20, 30, and 40°C). The maximum colonization of sclerotia was recorded in soil held at-5 or-10 kPa at 30–40°C. Trichoderma harzianum isolate 25–92 and Pseudomonas fluorescens isolate 4–92 were recorded as potential sclerotial parasites, and they significantly (P=0.05) reduced the germination of sclerotia by 60–63%. Cells of P. fluorescens and buffer-washed conidia of T. harzianum were completely agglutinated at 28°C with crude agglutinin of M. phaseolina. The ability of different antagonists to parasitize the sclerotia were correlated with the agglutination ability of the antagonists.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00384445
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Diversity of potential microbial parasites colonizing sclerotia of Macrophomina phaseolina in soil (1996)
    Springer
    Biology and fertility of soils 22 (1996), S. 136-140 
    Details
    ISSN: 1432-0789
    Keywords: Key wordsMacrophomina phaseolina ; Antagonists ; Germination ; Agglutination ; Pseudomonas fluorescence ; Trichoderma harzianum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The colonization of Macrophomina phaseolina sclerotia by microbial parasites was evaluated in unsterilized field soil at different levels of soil moisture (0, –5, and –10 kPa) and temperature (20, 30, and 40°C). The maximum colonization of sclerotia was recorded in soil held at –5 or –10 kPa at 30–40°C. Trichoderma harzianum isolate 25–92 and Pseudomonas fluorescens isolate 4-92 were recorded as potential sclerotial parasites, and they significantly (P=0.05) reduced the germination of sclerotia by 60–63%. Cells of P. fluorescens and buffer-washed conidia of T. harzianum were completely agglutinated at 28°C with crude agglutinin of M. phaseolina. The ability of different antagonists to parasitize the sclerotia were correlated with the agglutination ability of the antagonists.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00384445
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Dependence of steroid 1(2)-dehydrogenation on the C-17 side chain during cholesterol metabolism by immobilized Mycobacterium fortuitum (1995)
    Springer
    World journal of microbiology and biotechnology 11 (1995), S. 284-286 
    Details
    ISSN: 1573-0972
    Keywords: 1,4-Androstadiene-3 ; 17-dione ; 4-cholestene-3-one ; cholesterol bioconversion ; steroid 1(2)-dehydrogenation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract 1(2)-Dehydrogenation of 4-cholestene-3-one by immobilized Mycobacterium fortuitum NRRL B-8153 and free growing Mycobacterium sp. NRRL B-3805 and Micromonospora chlacea MTCC 329 depended on the nature of the C-17 side chain. The 1(2)-dehydrogenation did not appear to occur before C-17-side-chain cleavage of the 4-cholestene-3-one.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00367099
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    Paper (German National Licenses)
    Fulltext
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