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  • 1985-1989  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Non-spiking neurons supress fluctuations in small networks (1989)
    Springer
    Biological cybernetics 62 (1989), S. 75-81 
    Details
    ISSN: 1432-0770
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Computer Science , Physics
    Notes: Abstract Certain small networks of spiking interneurons are shown to produce strong fluctuations when modeled with neuromimes. The reasons for these fluctuations are demonstrated and discussed. When one or more of the neuromimes in the circuit were replaced by non-spiking neuromimes, the fluctuations were strongly reduced or disappeared completely. We assume that one of the important functions of nonspiking neurons is to provide precise analog computation while avoiding fluctuation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00217662
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A modular analog neuron-model for research and teaching (1988)
    Springer
    Biological cybernetics 59 (1988), S. 303-312 
    Details
    ISSN: 1432-0770
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Computer Science , Physics
    Notes: Abstract An analog electronic neuron for modeling neuronal networks and for teaching purposes is presented. The circuitry represents a new approach, since ionic channels are all modeled by fast relay switches in combination with resistors. Thus, the synapse design includes nonlinear PSP superposition and reversal potentials. The spike is modeled with Na+ and K+ currents. Detailed circuit diagrams and examples of performance are given. Besides its use in network research, the model has been successfully used over 3 years of teaching practice.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00332920
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Anaerobic degradation of halogenated aromatic compounds (1986)
    Springer
    Microbial ecology 12 (1986), S. 147-153 
    Details
    ISSN: 1432-184X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Recent microbiological findings show how compounds, regarded hitherto as unusual substrates for anaerobic bacteria, are degraded under anaerobic conditions. The complete conversion of halobenzoic acids and halophenolic compounds to methane by lake sediment and sewage sludge microorganisms has been demonstrated. Since haloaromatic compounds are widely used and may be found in such effluents as those from the forest industry, these studies could stimulate a broader interest in anaerobic treatment of industrial waste waters which contain unusual organic compounds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02153230
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Einfluß des Nahrungsangebots auf die Konkurrenz sympatrischer Mäusearten in Forstkulturen (1988)
    Springer
    Journal of pest science 61 (1988), S. 3-5 
    Details
    ISSN: 1612-4766
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Zusammenfassung Auf einer 1 ha großen Versuchsfläche wurden 125 kg Sonnenblumenkerne ausgebracht. Der Besatz an Langschwanzmäusen (A. flavicollis undA. sylvaticus) nahm daraufhin um mehr als das Dreifache innerhalb von 6 Wochen zu. Die Rötelmaus (C. glareolus) blieb in ihrer Entwicklung gehemmt. Ein Einfluß auf die Entwicklung der Erdmaus (M. agrestis) war nicht erkennbar.
    Notes: Abstract In a one ha forest cultivation 125kg sunflower kernels distributed in 9 bait containers were offered to rodents during six weeks in July and August 1985. The density of the Yellownecked Field Mouse (Apodemus flavicollis) increased threefold and significantly more than in the untreated plot. The number of bank voles (Clethrionomys glareolus) was augmented on the untreated but decreased slightly in the treated plot. This inhibition probably was caused by competition with the dominant Muridae. The number of the field vole (Microtus agrestis) was not affected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01906116
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    Paper (German National Licenses)
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