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  • 1
    Electronic Resource
    Electronic Resource
    Bakerol: An unusual nor-acorane hemiketal from Cupressus bakeri foliage
    Amsterdam : Elsevier
    Phytochemistry 36 (1994), S. 1283-1285 
    Details
    ISSN: 0031-9422
    Keywords: Cupressaceae ; Cupressus bakeri ; bakerol ; foliage ; nor-acorane hemiketal. ; sesquiterpenoids
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0031-9422(00)89652-1
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    AlF 4 − and vanadate stimulate chloride secretion in rabbit colon by a Ca2+-dependent mechanism (1992)
    Springer
    Pflügers Archiv 420 (1992), S. 515-521 
    Details
    ISSN: 1432-2013
    Keywords: Aluminum ; Fluorine ; Vanadate ; Colon ; Chloride secretion ; Ca2+
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Stripped rabbit descending colon mucosae were studied in vitro in modified Ussing chambers to determine the effects of AlF 4 − and vanadate on Cl− transport. Serosal additions of AlF 4 − and vanadate increase short-circuit current (I SC) and tissue conductance, while luminal addition of the agents is ineffective. Addition of aluminium potentiates the effect of NaF on I SC. AlF 4 − and vanadate increase serosal-to-mucosal flux of 36Cl without affecting mucosal-to-serosal flux. The effects of these agents on I SC are markedly inhibited by serosal addition of bumetanide and depend on the presence of Na+ in the serosal bathing solution. The effects of AlF 4 − and vanadate on I SC are dependent on the presence of Ca2+ in the bathing solution, and are completely inhibited by indomethacin, but the effect of forskolin is not affected by the removal of Ca2+ from the bathing solution and the addition of indomethacin. AlF 4 − and vanadate significantly increase the level of inositol phosphate metabolites. The results indicate that AlF 4 − and vanadate increase Cl− secretion in the rabbit colon via an increase in prostaglandin synthesis which is mediated by the increase of intracellular Ca2+ concentrations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00374627
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Solubilities in the ammonium thiosulfate-urea-ammonium nitrate-water system at 0°C (1990)
    Springer
    Nutrient cycling in agroecosystems 26 (1990), S. 99-105 
    Details
    ISSN: 1573-0867
    Keywords: Ammonium ; thiosulfate ; urea ; nitrate ; phase system ; solubility ; fertilizer solution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Solubilities in the system CO(NH2)2-NH4NO3-(NH4)2S2O3-H2O were obtained at 0°C and pH values between 6.12 and 7.33. The new composition of matter, (NH4)6(S2O3)2(NO3)2·CO(NH2)2, was identified and characterized chemically and microscopically. Stable high-analyses solution fertilizers can be produced at 0°C utilizing waste ammonium thiosulfate solutions with standard ammonium nitrate and urea fertilizer materials. A 31-0-0-5.6S grade (%N-%P2O5-%K2O-Other) fertilizer solution can be formed at 0°C when NH4NO3/CO(NH2)2 is about one. Stable 30% total nitrogen solutions containing up to 10% sulfur can be produced at other NH4NO3/CO(NH2)2 ratios.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01048747
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    Paper (German National Licenses)
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