-This paper presents an analysis of electromagnetic immunity of energy metering devices, using broadband power line communications (PLC) in low voltage (LV) supply networks with high levels of disturbance. Several tests have been carried out to characterize the behavior of PLC modems and couplers in presence of the most common types of disturbances and electromagnetic interferences (EMI) which can be expected in LV distribution networks. The method exposed allows repeat the tests with different modems, communications wires and couplers. Thus it is possible to compare different elements between them and choose the best for every occasion.
El presente artículo presenta y analiza los hallazgos de un estudio de naturaleza cualitativa sobre las percepciones que expresan futuros maestros especialistas de inglés en el transcurso de las Prácticas de Enseñanza sobre la integración y la atención a las necesidades educativas especiales en el aula ordinaria. El análisis de los datos textuales aportados por los informantes, además de revelar las ideas que éstos sostienen en torno a la integración, evidencia una frecuente ausencia de experiencias de enseñanza auténticamente integradoras durante ese período crítico de formación profesional.
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