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  • 1
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 79 (1996), S. 8565-8570 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Filament regeneration has been investigated in electroformed Cu-SiOx-Cu sandwich devices at cryogenic temperatures (≈125 K). The initial regeneration characteristics can be modeled by proposing a new scheme, which we term "concerted regeneration.'' This is the preferential regeneration of filaments located close to intact filaments (which generate a local increase in temperature via power dissipation). This coordination in the regeneration of filaments can also cause "explosive regeneration,'' the rapid regeneration of a batch of filaments, and thus a sudden jump in the device current, and also "concerted rupture,'' a sudden drop in conductivity due to a batch of filaments rupturing simultaneously. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Nutrient cycling in agroecosystems 42 (1995), S. 149-158 
    ISSN: 1573-0867
    Keywords: Micrometeorology ; N flux ; livestock waste ; NH3 ; 15N
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Gaseous ammonia (NH3) transport is an important pathway in the terrestrial N cycle. In the atmosphere NH3 neutralizes airborne acids and is a major factor determining air quality and acid rain deposition patterns. Redeposition of atmospheric NH3 plays an important role in the N balance of natural ecosystems and has been implicated in forest decline, plant species change and eutrophication of surface water. Much of the N in soil-plant animal systems can be lost to the atmosphere, particularly with surface applied livestock waste, or urea and anhydrous ammonia fertilizers. Plants can have a significant impact on NH3 transport because they can both absorb and desorb atmospheric NH3. Under conditions of low soil N or high atmospheric NH3 concentrations, plants absorb NH3. Under conditions of high soil N or low atmospheric NH3 concentrations, plants volatilize NH3. This article discusses methods for evaluating NH3 transport in the filed, the rate of NH3 volatilized from fertilizer application, and the effects of plants on net NH3 transport.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Microscopy Research and Technique 32 (1995), S. 498-503 
    ISSN: 1059-910X
    Keywords: Colocalization ; In situ hybridization ; Immunocytochemistry ; Testis ; Digoxigenin ; Transition proiein-1 ; Sulfated glycoprotein-1 ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Natural Sciences in General
    Notes: Using testes fixed by perfusion with Bouin's fluid and embedded in paraffin wax, this study has established methods for combining in situ hybridization and immunocytochemistry on the same section to colocalize mRNA and protein for transition protein-1 (TP-1) and sulfated glycoprotein-1 (SGP-1), respectively. It was found that SGP-1 could be detected in tissue sections subsequent to the detection of TP-1 mRNA in situ. The finding that (1) the tissue pretreatments required to permeabilize the section and to allow access to the probe, and (2) the hybridization conditions themselves, had no adverse effect on the detection of antigen, eases the performance of this technique. On this basis, important information could be obtained on the transcriptional and translational activity of spermatogenic cells, if related probes and antibodies are utilized. © 1995 Wiley-Liss, Inc.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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