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  • 1995-1999  (3)
  • Conifers  (1)
  • Women
  • isomorphous substitution
  • 1
    Electronic Resource
    Electronic Resource
    Sumatriptan decreases food intake and increases plasma growth hormone in healthy women (1997)
    Springer
    Psychopharmacology 129 (1997), S. 179-182 
    Details
    ISSN: 1432-2072
    Keywords: Key words Sumatriptan ; Food intake ; Plasma growth hormone ; Women
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We studied the effect of the 5-HT1B/1D receptor agonist sumatriptan (6 mg SC) on plasma growth hormone and prolactin and food intake in 15 healthy female subjects using a double-blind, placebo-controlled, cross-over design. Sumatriptan significantly elevated plasma growth hormone but did not alter plasma prolactin. Sumatriptan also significantly lowered total food intake in a buffet meal, particularly decreasing the intake of fat. Our results indicate that 5-HT1B/1D receptors may be involved in the regulation of food intake in humans. In addition, while activation of 5-HT1B/1D receptors stimulates growth hormone release in both men and women, sumatriptan lowers plasma prolactin only in men, suggesting sex differences in the 5-HT regulation of prolactin release.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002130050178
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  • 2
    Electronic Resource
    Electronic Resource
    Thermogravimetric Evidence of Cobalt or Manganese Isomorphously Substituted into a Zeolite (1998)
    Springer
    Journal of thermal analysis and calorimetry 54 (1998), S. 901-911 
    Details
    ISSN: 1572-8943
    Keywords: cobalt ; isomorphous substitution ; manganese ; tetraalkylammonium cations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Pure silica zeolite ZSM-5 has been synthesised in a slightly acidic aqueous fluoride medium which produces the protonated form of the zeolite ZSM-5 [1]. Tetrahalometallate [2] species of cobalt and manganese have been synthesised and increasing mole fractions incorporated into the zeolite synthesis gel. The products have been analysed and characterised using simultaneous thermogravimetric-derivative thermogravimetric analysis (TG-DTG). The thermal decomposition, under nitrogen of the associated tetraethylammonium (TEA+) and tetrapropylammonium (TPA+) cations occluded within the zeolite channels is indicative and characteristic of the incorporation of the heteroatoms into the zeolitic framework. Analysis by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray fluorescence (XRF), and Fourier transform infrared spectroscopy (FTIR) has confirmed the reliability of thermogravimetric (TG) and derived thermogravimetric analysis (DTG) as a diagnostic tool.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010116625710
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Multiple-population versus hierarchical conifer breeding programs: a comparison of genetic diversity levels (1995)
    Springer
    Theoretical and applied genetics 90 (1995), S. 584-594 
    Details
    ISSN: 1432-2242
    Keywords: Multiple-population breeding (MPBS) Hierarchical open-ended breeding (HOPE) Genetic conservation ; Conifers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Advanced-generation domestication programs for forest-tree species has raised some concerns about the maintenance of genetic diversity in forest-tree breeding programs. Genetic diversity in natural stands was compared with two genetic conservation options for a third-generation elite Pinus taeda breeding population. The breeding population was subdivided either on the basis of geographic origin and selection goals (multiple-population or MPBS option) or stratified according to genetic value (hierarchical or HOPE option). Most allelic diversity in the natural stands of loblolly pine is present in the domesticated breeding populations. This was true at the aggregate level for both multiple-population (MPBS) and the hierarchical (HOPE) populations. Individual subpopulations within each option had less genetic diversity but it did not decline as generations of improvement increased. Genetic differentiation within the subdivided breeding populations ranged from 1 to 5%, genetic variability is within each subpopulation rather than among subpopulations for both MPBS (〉95%) and the HOPE approaches (〉98%). Nei's Gst estimates for amongpopulation differentiation were biased upwards relative to estimates of θ from Weir and Cockerham (1984).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00222007
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    Paper (German National Licenses)
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