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  • 1
    Electronic Resource
    Electronic Resource
    Neurotensin Release of Endogenous Catecholamines from Hypothalamus of the Rat (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 473 (1986), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1986.tb23645.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Involvement of a central dopaminergic system in 5-methoxy-N,N-dimethyltryptamine-induced turning behaviour in rats with lesions of the dorsal raphé nuclei (1982)
    Springer
    Psychopharmacology 78 (1982), S. 261-265 
    Details
    ISSN: 1432-2072
    Keywords: Turning behaviour ; Brain lesions ; 5-MeODMT ; Dopaminergic system ; Dopamine release ; Rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The turning behaviour induced by 5-methoxy-N,N-dimethyltryptamine (5-MeODMT) has been investigated in rats with lesions of the dorsal raphé nucleus (DRN). 5-MeODMT caused a dose-related contralateral turning in rats with 5,7-dihydroxytrypamine (5,7-DHT) lesions of the substantia nigra and a similar effect was observed in DRN-lesioned rats. In contrast, a dose-related ipsilateral turning was observed when 5-MeODMT was injected into rats with 5,7-DHT lesions of the striatum. These results suggest that the effects of 5-MeODMT in DRN-lesioned rats are mediated via the substantia nigra. The contralateral turning induced by 5-MeODMT in rats with a 5,7-DHT lesion of the DRN was significantly reduced when a second 6-hydroxydopamine lesion was placed in the striatum, but not when it was placed in the nucleus accumbens. Thus the nigrostriatal dopaminergic system seems to be involved in 5-MeODMT-induced turning. The release of tritium from slices of substantia nigra previously labelled with [3H]-dopamine was inhibited by 5-MeODMT (10-7 to 10-5 M) and this effect was blocked by methysergide in a concentration-related manner. Tetrodotoxin (10-7M) failed to antagonise 5-MeODMT. These results suggest that 5-MeODMT can inhibit dopamine release from nigral dendrites, which could in turn enhance nigrostriatal activity by reducing the auto-inhibitory actions of dopamine, thereby causing contralateral turning in DRN-lesioned rats.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00428162
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Effect of ZrO2 on the alkali feldspar-aluminosilicate interface (1984)
    Springer
    Journal of materials science 19 (1984), S. 44-48 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The contact angles of the alkali feldspars containing 0, 4, 8 and 12 vol % ZrO2 on the aluminosilicate substrate were measured by sessile drop method. During the heating from 1350 to 1520° C and the holding at 1350° C, the contact angles were generally increased with increasing ZrO2 content. 8 vol % ZrO2 in the melt drop was very effective to raise the contact angles and 12 vol % ZrO2 was barely sufficient to maintain the contact angles at around 90° or larger at elevated temperatures. The SEM micrographs indicated that ZrO2 particles were scattered throughout the drop and also located in the interface between the drop and substrate. The dissolution of the substrate by liquid feldspar and the diffusion of ZrO2 in the substrate were also observed. The cause of the increase in contact angle with increasing ZrO2 content are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02403109
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of ZrO2 on the alkali feldspar-aluminosilicate interface (1984)
    Springer
    Journal of materials science 19 (1984), S. 44-48 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The contact angles of the alkali feldspars containing 0, 4, 8 and 12 vol % ZrO2 on the aluminosilicate substrate were measured by sessile drop method. During the heating from 1350 to 1520° C and the holding at 1350° C, the contact angles were generally increased with increasing ZrO2 content. 8 vol % ZrO2 in the melt drop was very effective to raise the contact angles and 12 vol % ZrO2 was barely sufficient to maintain the contact angles at around 90° or larger at elevated temperatures. The SEM micrographs indicated that ZrO2 particles were scattered throughout the drop and also located in the interface between the drop and substrate. The dissolution of the substrate by liquid feldspar and the diffusion of ZrO2 in the substrate were also observed. The cause of the increase in contact angle with increasing ZrO2 content are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00552992
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Microstructural aspects of the lower temperature firing bauxite brick (1984)
    Springer
    Journal of materials science 3 (1984), S. 367-369 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00729399
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    Paper (German National Licenses)
    Fulltext
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