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  • 1995-1999  (1)
  • 1975-1979  (1)
  • Mercury, inorganic, subcellular distribution  (1)
  • fuzzy  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Archives of toxicology 37 (1976), S. 57-66 
    ISSN: 1432-0738
    Keywords: Mercury, inorganic, subcellular distribution ; Mercury, inorganic, biocomplexes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Anorganisches Quecksilber, Ratten in einer einzelnen Dose von 0,5 mg Hg/kg verabreicht, wurde in den Nieren vorwiegend in der löslichen (54%) und in der Kern-Fraktion (30%) angereichert, und in beiden Fraktionen wurde eine zeitabhängige Abnahme festgestellt. In der mitochondrialen und mikrosomalen Fraktion, in denen zuerst ca. 11 und 6% Quecksilber gefunden wurde, konnte über die erste Woche eine zunehmende Tendenz festgestellt werden. In der löslichen Fraktion waren die metallothionein-ähnlichen Eiweißstoffe von niedrigem Molekulargewicht vorwiegend für die Bindung von Quecksilber verantwortlich. In anderen Zell-Fraktionen war Quecksilber meistens an Eiweiß-stoffe von hohem Molekulargewicht gebunden.
    Notes: Abstract Inorganic mercury, administered to rats in a single dose of 0.5 mg Hg/kg is accumulated in the kidneys mainly in the soluble (54%) and nuclear (30%) fractions, showing decreasing tendency with time. Mitochondrial and microsomal fractions, initially accumulating approx. 11 and 6% of total Hg, show a tendency to increase the absolute level of Hg for the first week after administration. In the soluble fraction low-molecular weight, metallothioneinlike proteins are mainly responsible for the accumulation of mercury, in other fractions proteins of higher molecular weight prevail.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1573-8868
    Keywords: geostatistics ; regionalization ; fuzzy ; kriging ; hydrogeology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Mathematics
    Notes: Abstract In many instances hydrogeological parameters obtained by conventional methods for selected localities within an aquifer or an aquitard are not sufficient for adequate regionalization at the scale of the entire layer. Here, we demonstrate an application of the fuzzy kriging method in regionalization of hydrogeological data, in which the set of conventional, crisp values is supplemented by imprecise information subjectively estimated by an expert. It is believed that such an approach eventually may reflect the real-world conditions more closely than a traditional crisp-value approach, because the former does not impose exactness artificially on phenomena which are diffuse by their nature. Spatial interpolation was done for the thickness of one of the major aquitards (till and glaciolacustrine clay) in northwestern Germany. The dataset consists of 329 crisp values from boreholes supplemented by 172 imprecise values defined as fuzzy numbers. It is demonstrated that the reliability of regionalization was higher, compared to regionalization performed with the crisp dataset only. Fuzzy kriging was performed with FUZZEKS (Fuzzy Evaluation and Kriging System) developed at the Ecosystem Research Center at the University of Kiel.
    Type of Medium: Electronic Resource
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