Análisis semántico de variación en tiempos verbales: Oraciones condicionales del español

La metodología empleada en este estudio se apoya sustaiicialmenteen la obra de Weinreich (WEINREICH, LABOV,HERZOG 1968, WEINREICH 1963) y en la teoría de variación lingüística de Labov (LABOV 1972a, 1972&). Este marco teórico preserva la noción saussureana de la dualidad del signo lingüístico, que ve en el signo la unión de una forma y un significado, y se aparta de la tradición lingüística que Labov ha llamado "el punto de vista categórico"

Foto de familia. Un estudio descriptivo de los recursos de información científica en las bibliotecas virtuales del sistema sanitario público español

Objective: To identify and quantify scientific information resources, and to describe the present situation of libraries in the Spanish public health system. Methods and Materials: A survey sent to the heads of the health science libraries in the public health system and the virtual libraries in each Health Council. Variables: number of centres, number of users and their distribution by type, number of libraries and their staff, and shared scientific information resources. Results: 14 of the 17 Autonomous Communities have responded. All except Canarias, La Rioja and Comunidad Valenciana. In 14 communities are 201 specialized libraries, with 295 librarians, that serve more than 130.000 professionals in the public health system. The Health Councils have started the development of virtual libraries, which are in different development phases. On 2006 the libraries have subscribed, via shared access through virtual libraries, more than 17 000 journals in electronic format and 36 bibliographic databases. The presence of bibliographic management programs, meta-search engines and linksolvers is still low. Conclusions: The libraries in the public health system are subscribed to a significant volume of scientific information resources, based on the number of centers and users they give service to. A first approximation reveals that most resources overlap between the different communities. A more detailed study could corroborate those results and suggest cooperation systems between communities. The recent development of virtual libraries in the counties is promoting the access for all the health professionals to electronic resources, but would be necessary to evaluate the use of those resources. In spite of these advances, there is still reluctance to subscribe to "next generation" resources, such as meta-search engines or linksolvers