RESUMO
Automated subject indexing and the coordination of indexing with natural language search interfaces could provide solutions to some of the information retrieval problems facing the medical field today. This paper describes the construction of such an interface using semantic net expansion and a clinical neuroscience thesaurus, which provided a specialized vocabulary for use in both automated indexing of MEDLINE articles and an "intelligent" front-end for database searching. Though reviewed by a domain expert, the thesaurus was successfully built by nonexperts utilizing a set of rules. We report on testing thesaurus content and semantic net accuracy using a database of selected MEDLINE article abstracts.
Assuntos
Indexação e Redação de Resumos/métodos , Computadores , MEDLINE , Neurociências , Semântica , DescritoresRESUMO
A useful procedure allows reproduction of ideally waxed-up occlusions in typical fixed ceramics. For skilled laboratory technicians this procedure will be adaptable to some restorations.
Assuntos
Oclusão Dentária , Porcelana Dentária , Planejamento de Dentadura , Articuladores Dentários , Humanos , Propriedades de Superfície , CerasRESUMO
An impression technique useful for both individual or multiple preparations with shoulders is described. This method reproduces the entire maxillary arch in one impression, which facilitates development of satisfactory occlusion for the patient. In addition, an impression technique that simultaneously reproduces the gingival margins of tooth preparations and the edentulous ridges is described. A master cast of the entire maxillary arch can be obtained in one appointment.
