Abstract The effect of soil-structure interaction (SSI) on the dynamic responses of seismically isolated three-span continuous reinforced concrete (RC) bridge is investigated. Also, tuned mass damper(s) (TMD/s) is/are installed to control undesirable bearing displacement, even under the SSI effect. The TMDs are placed at the mid-span of the bridge and each tuned with a modal frequency, while controlling up to first few modes as desirable. The soil surrounding the foundation of pier is modeled by frequency independent coefficients. Dynamic analysis is carried out in time domain using direct integration method. In order to specify the effects of the SSI, the responses of the non-isolated, isolated, and controlled isolated bridge are compared. It is observed that the soil surrounding the pier has significant effects on the bearing displacement of the isolated RC bridges. In addition, it is observed that the seismic responses of isolated RC bridge reduced significantly with installation of the TMDs.

Abstract: The aim of this paper is to establish and analyze the factors of competency, attitude, and school environment associated with use of information and communication technologies (iCTs) among teachers in Brazil. It takes as a reference point the data gathered by the Brazilian team behind the project "Factors associated with the level of use of ICTs as a teaching and learning tool in state education institutions in Colombia and Brazil. The case of Barranquilla and Florianopolis", which provided the results presented here. 576 surveys were applied, with a 95percent confidence level and a margin of error of ± 4, to public elementary school teachers in Florianopolis, Brazil. The principal results indicate a low level of use of ICTs in teaching and learning processes among teachers assessed.

Resumen: Este artículo tiene como objetivo establecer y analizar los factores de competencia, actitudinales y del ambiente escolar asociados al aprovechamiento de las tecnologías de información y las comunicaciones (TIC) en los docentes de Brasil. Toma como referente los datos recabados por el equipo brasileño del proyecto "Factores asociados al nivel de uso de las TIC como herramienta de enseñanza y aprendizaje en las instituciones educativas oficiales de Colombia y Brasil. Caso Barranquilla y Florianópolis", que dio origen a los resultados aquí expuestos, a partir de la aplicación de 576 encuestas, con el 95 por ciento de confianza y un margen de error de ± 4, aplicadas a docentes de educación básica pública radicados en Florianópolis, Brasil. Los principales resultados permiten apreciar un bajo nivel de aprovechamiento de las TIC en los procesos de enseñanza-aprendizaje en los docentes analizados.