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Cultured chick hepatocytes were used to investigate the hepatotoxicity of methotrexate alone and in combination with paracetamol. Treatment with methotrexate alone at concentrations as high as 1 mg/ml resulted in no toxicity in cultured chick hepatocytes, as indicated by no detachment of cells and no effect on protein synthesis or on release of the… (More)
Sciences Hamburg and the " Landschaftsverband Rheinland " in a thesaurus-project for the collaborative indexing of cultural heritage is an example of a successful research cooperation between information scientists and domain specialists regardless of the limited financial and human resources of LIS-departments at universities of applied sciences in Germany.
Knowledge organization systems (KOS) can use different types of hierarchical relations: broader generic (BTG), broader partitive (BTP), and broader instantial (BTI). The latest ISO standard on thesauri (ISO 25964) has formalized these relations in a corresponding OWL ontology (De Smedt et al., ISO 25964 part 1: thesauri for information retrieval: RDF/OWL… (More)