Howard W. Beck

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In this section we give a justification and suggest ways that ontologies can be used to better organize information resources and assist users in retrieving relevant information. Ontologies are contrasted with conventional search methods based on fulltext search, and the relationship between ontologies and thesauri is introduced. Applications of ontology in(More)
Mapping of a number of biochemical markers for noradrenergic, dopaminergic, serotoninergic, cholinergic and GABAergic systems was undertaken in 93 samples removed from the human cerebral cortex. The right hemisphere of brains from two subjects with no known history of neurological and psychiatric diseases was examined. Neurotransmitter markers were present(More)
The effect of Al(OH)3 was investigated on the gastric bleeding induced by acetylsalicylic acid+HCl. Cats provided with Heidenhain pouches were used. The pouch had vascular connections to the main stomach. Instillation of acidified acetylsalicylic acid into the pouch caused a marked increase in its blood content indicating the development of hemorrhagic(More)
STUDY OBJECTIVE The aim was to examine whether or not xanthine oxidase activity may be a significant source of oxygen derived free radicals in the human heart. DESIGN Xanthine oxidoreductase activity of human myocardium was assayed in vitro. In addition, tests were performed to assess whether or not endogenous inhibitors of the enzyme were present in(More)
The increased use of intelligent decision support systems has created a demand for efficient acquisition, implementation and maintenance of the knowledge required by such systems. The field of knowledge level modelling has developed as a means to this end. This has led to the construction of methodologies for KBS development that facilitate a generic(More)
* This project is supported by NSF under grant number IIS-0534065 ABSTRACT Solving complex global problems such as illegal immigration, border control, and terrorism requires government organizations at all levels to share not only data but, more importantly, knowledge pertinent to decision support, problem solving and activity coordination. Responding to(More)