Titlebook: Radioisotopic Methods in Hydrobiology; Yuri I. Sorokin Book 1999 Springer-Verlag Berlin Heidelberg 1999 Biogeochemistry.Ecology, Aquatic.E

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The Radiocarbon Method to Estimate Primary Production in Aquatic Environments,g 1960). Primary production is the basic source of external energy input into most aquatic ecosystems. Therefore, any attempt to estimate or model their energy balances first needs adequate evaluation of the size of primary production. The parameters of primary production per day and per whole seaso

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Use of Radioisotopes to Study Biogeochemical Cycling of Elements in Aquatic Environments,r basins (Kuznetsov 1970; Krumbein 1978). Among the most important of them are C, N, P, S, Ca, Mn, Fe, and Co. All of them have long-living radioisotopes except nitrogen, which also has the radioisotope (.N), which is very short-living. Its half-life is only 10 min. Nevertheless, it was also used fo

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Assay of Some Common Hydrobiological Techniques,n of the basic structural and functional parameters of its ecosystem, to be able evaluate its present state, its potential biological productivity, and its capacity for self-purification. The complex of research problems and directions involved in its successful resolution include radioisotopic meth

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thodological possibilities because all biologically active compounds contain long-living radioisotopes which make the analytical field and laboratory work possible without the precautions involved in direct radiation health hazards.978-3-642-64186-2978-3-642-59934-7

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Die besonderen Schwierigkeiten der psychiatrischen Genetik. Was wird gemessen?en Symptomkomplex dar, dessen einzelne Komponenten wie ein Muster überzufällig häufig gemeinsam auftreten. Eine Diagnose faßt einen Symptomkomplex konzeptuell zusammen und grenzt ihn gegen andere ähnliche Komplexe ab. Mit dem Begriff Krankheit bezeichnet man üblicherweise eine ätiologische Einheit.

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