259 resultados para 2202
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La adaptación de la universidad española al EEES -Espacio Europeo de Educación Superior- ha supuesto la transformación de ésta sobre todo a través de los nuevos planes de estudio de acuerdo al crédito europeo o ECTS -European Credit Transfer System-. Estos factores han modificado el proceso de enseñanza-aprendizaje centrándolo en el alumno como protagonista. En este contexto la evaluación no se considera sólo como una manera de valorar la asunción de competencias por parte del alumno, sino como un recurso para mejorar la calidad de la enseñanza y los aprendizajes (Zabalza Beraza, 2001). El objetivo de este estudio ha sido analizar la influencia de la aplicación de la evaluación formativa en los resultados del alumnado en la asignatura Música en la Educación Primaria. La muestra está formada por el alumnado que ha cursado esta materia en los últimos tres cursos. Para el análisis de los resultados se han aplicado estadísticos descriptivos y ANOVAS. Los resultados muestran cómo los estudiantes que siguen el sistema de evaluación formativa obtienen mejores resultados frente aquellos que optan por la vía del examen final.
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Background: Deception can distort psychological tests on socially sensitive topics. Understanding the cerebral processes that are involved in such faking can be useful in detection and prevention of deception. Previous research shows that faking a brief implicit association test (BIAT) evokes a characteristic ERP response. It is not yet known whether temporarily available self-control resources moderate this response. We randomly assigned 22 participants (15 females, 24.23 ± 2.91 years old) to a counterbalanced repeated-measurements design. Participants first completed a Brief-IAT (BIAT) on doping attitudes as a baseline measure and were then instructed to fake a negative doping attitude both when self-control resources were depleted and non-depleted. Cerebral activity during BIAT performance was assessed using high-density EEG. Results: Compared to the baseline BIAT, event-related potentials showed a first interaction at the parietal P1, while significant post hoc differences were found only at the later occurring late positive potential. Here, significantly decreased amplitudes were recorded for ‘normal’ faking, but not in the depletion condition. In source space, enhanced activity was found for ‘normal’ faking in the bilateral temporoparietal junction. Behaviorally, participants were successful in faking the BIAT successfully in both conditions. Conclusions: Results indicate that temporarily available self-control resources do not affect overt faking success on a BIAT. However, differences were found on an electrophysiological level. This indicates that while on a phenotypical level self-control resources play a negligible role in deliberate test faking the underlying cerebral processes are markedly different. Electronic supplementary material: The online version of this article (doi:10.1186/s12868-016-0249-8) contains supplementary material, which is available to authorized users.
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Mode of access: Internet.
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Wright II, 2202.
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Includes index.
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High-power and high-voltage gain dc-dc converters are key to high-voltage direct current (HVDC) power transmission for offshore wind power. This paper presents an isolated ultra-high step-up dc-dc converter in matrix transformer configuration. A flyback-forward converter is adopted as the power cell and the secondary side matrix connection is introduced to increase the power level and to improve fault tolerance. Because of the modular structure of the converter, the stress on the switching devices is decreased and so is the transformer size. The proposed topology can be operated in column interleaved modes, row interleaved modes, and hybrid working modes in order to deal with the varying energy from the wind farm. Furthermore, fault-tolerant operation is also realized in several fault scenarios. A 400-W dc-dc converter with four cells is developed and experimentally tested to validate the proposed technique, which can be applied to high-power high-voltage dc power transmission.