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  • Aerospace Medicine  (1)
  • uncertainty  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Time and risk (1995)
    Springer
    Journal of risk and uncertainty 10 (1995), S. 37-55 
    Details
    ISSN: 1573-0476
    Keywords: uncertainty ; intertemporal choice ; life-cycle ; stochastic dominance ; temporal dominance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Economics
    Notes: Abstract Intertemporal choice has obvious similarities with choice under uncertainty. However, because of technical difficulties in mapping results between the two domains, theoretical analysis of these topics has proceeded independently. In this article, we show that, using Rank Dependent Expected Utility rather than Expected Utility as the basic uncertain choice model, numerous analogies between the two fields may be identified and exploited. The key result is the derivation of a natural analogy between risk-aversion and impatience. This permits the reinterpretation of well-known results on stochastic dominance and comparative risk-aversion in the context of intertemporal choice. It is also possible to reinterpret results on intertemporal optimization in order to derive new results for portfolio choice problems under uncertainty.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01211527
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    Paper (German National Licenses)
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  • 2
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    The Effects of Hypergravic Fields on Neural Signalling in the Hippocampus (1991)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The goal of this grant is to study the effect of hypergravic fields on the modulation of hippocampal electrical activity by serotonin (5-HT). The proposed study represents a shift from our previous NASA grants covering three diverse areas in neurobiology (thermoregulation, vestibular and auditory brainstem evoked responses, and the hippocampus) to consideration of only one of these areas, the hippocampus. To place our proposed hippocampal experiments in context with relevant Spacelab-3 experiments and hypergravic experiments, two experiments on receptor changes in animals exposed to altered gravitational fields are first described. Our experiments build on these structural/biochemical observations and extend investigations to related electrical activity at 1 G and in hypergravic fields. The background continues with a review of past studies at 1G related to effects of serotonin on hippocampal electrical activity (i.e., population spikes, intracellular potentials).
    Keywords: Aerospace Medicine
    Type: NASA-CR-201825 , NAS 1.26:201825
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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