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  • Large-eddy simulation  (2)
  • Pheromone  (2)
  • 1H and 13C NMR  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Spatial organization of olfactory receptor neurons on the antenna of the cabbage looper moth (1998)
    Springer
    Journal of comparative physiology 183 (1998), S. 433-442 
    Details
    ISSN: 1432-1351
    Keywords: Key words Electrophysiology ; Noctuidae ; Pheromone ; Single-cell ; Sensilla trichodea
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Electrophysiological responses to stimulation with behaviorally relevant compounds were recorded from receptor neurons within specialized classes of sensilla on the antennae of male cabbage looper moths. Receptor neurons were found that specifically respond to stimulation with Z-7,12:AC, Z-7,14:AC, Z-9,14:AC, and Z-7,12:OH. Specialized receptor neurons were not found for the three remaining pheromone blend components, 12:AC, Z-5,12:AC, or 11,12:AC. However, a new class of sensillum containing a pair of neurons insensitive to all of the cabbage looper pheromone components was encountered. In addition, spatial patterns of distribution along the flagellum for identified classes of sensilla are described. Sensilla containing Z-7,12:AC-sensitive neurons are preferentially located on the proximal half of the antennal flagellum. In addition to this distribution along the length of the antenna, a pattern across individual flagellar subsegments is described. Sensilla containing neurons sensitive to Z-9,14:AC were found exclusively on the lateral margins of individual flagellar subsegments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003590050269
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Extensions To A Similarity Hypothesis For Shallow Cumulus Convection (2000)
    Springer
    Boundary layer meteorology 97 (2000), S. 173-190 
    Details
    ISSN: 1573-1472
    Keywords: Cumulus ; Large-eddy simulation ; Similarity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Grant and Brown (Quart. J. Roy. Meteorol. Soc., 125, 1913–1936) proposed a similarity hypothesis for shallow cumulus convection and evaluated it using large-eddy simulation results. Here, results from an additional independent simulation are used to provide further support for the basic theory. At the same time, some extensions to the theory are proposed. It is shown that the effects of non-zero fluxes at cloud base can be conveniently accounted for by a simple representation of the transport of scalar variance into the convecting layer. Theeffects of having more complex mean profile shapes within the layer (and hence changes in the gradient production of variance) are also investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1002753930764
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Non-local mixing of momentum in the convective boundary layer (1997)
    Springer
    Boundary layer meteorology 84 (1997), S. 1-22 
    Details
    ISSN: 1573-1472
    Keywords: Large-eddy simulation ; Turbulence ; Non-local closure ; Convective boundary layer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Recently Frech and Mahrt proposed a closure scheme which includes alarge-scale stress term to represent the effects of non-local momentummixing in the convective boundary layer. Here large-eddy simulation (LES)datasets are used to evaluate the performance of this scheme across a rangeof stabilities between neutral and highly convective conditions, and as afunction of baroclinity. Generally the inclusion of the non-local term inthe closure model leads to results in better agreement with LES, althoughsome modifications to the model formulation are suggested.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1000388830859
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Quantitative comparison of behavioral and neurophysiological responses of insects to odorants (1987)
    Springer
    Journal of chemical ecology 13 (1987), S. 509-531 
    Details
    ISSN: 1573-1561
    Keywords: Pheromone ; olfaction ; electroantennogram ; neurophysiology ; Trichoplusia ni ; Heliothis zea ; Plodia interpunctella ; Lepidoptera ; Noctuidae ; Pyralidae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract A consistent pattern of relationships emerges from comparisons of insect electroantennograms, peripheral olfactory receptor neuron responses, and behavioral responses to quantified concentrations of odorants. One consistency is that all of the different response measurements can be described by stimulus-response curves of the same form. Another is that the responses have characteristic groupings when they are plotted against odorant concentration. The pattern of relationships is exemplified in the responses ofTrichoplusia ni (Hübner),Heliothis zea (Boddie), andPlodia interpunctella (Hübner) to several pheromone components and analogs. To quantify the relevant stimulus parameters for the response comparisons, the emission rates of the stimulus delivery system were calibrated for several 12 to 17-carbon pheromone components. The stimulus-response relationships determined forT. ni, H. zea, andP. interpunctella are combined with relationships reported for other insects in the literature, and applications are discussed for the interpretation of pheromone trapping and laboratory bioassays.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01880096
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    1H and 13C NMR spectra of pseudomorphine and dimethylpseudomorphine (1990)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 28 (1990), S. 1018-1022 
    Details
    ISSN: 0749-1581
    Keywords: Pseudomorphine ; Dimethylpseudomorphine ; 1H and 13C NMR ; Chemical shift assignments ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The 1H and 13C NMR spectra of 7,7′,8,8′-tetradehydro-4,5:4′,5′-diepoxy-17,17′-dimethyl-[2,2′-bimorphinan]-3,3′,6,6′-tetrol; [2,2′-bimorphine] (pseudomorphine) and 7,7′,8,8′-tetradehydro-4,5:4′,5′-diepoxy-17,17′-dimethyl-[2,2′-bimorphinan]-3,3′-dimethoxy-6,6′-diol; 2,2′-bimorphine (dimethylpseudomorphine) were measured and assigned using DEPT, COSY, HETCOR, NOESY, NOE difference techniques and selective proton decoupled carbon NMR experiments.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1260281204
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    Paper (German National Licenses)
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