An Approach to Introducing Environmental Education into the Science Methods Course in Teacher Education

This approach attempts to use environmental education as a thread in the science methods course in teacher education for lower secondary level (12‐14) in the University of Santiago de Compostela (Spain). The framework of the approach, which stresses the for’ component of environmental education is discussed and some of the strategies and activities used are presented, for instance production of concept maps on environmental issues and a role‐play about traffic restrictions in the historic city of Santiago. Some of the difficulties that student teachers encounter in translating this approach to the practical level are also discussed.     

Experimental verification of Faradaic charging in ac electrokinetics

This paper investigates the phenomenon of Faradaic charging in ac electrokinetics. Faradaic reactions were suggested as a key effect responsible for the reversal of pumping direction in ac micropumps. However, this hypothesis has yet to be proven convincingly and directly. Here we present an ion detection strategy to determine the production of ions through Faradaic hydrolytic reactions originating from direct application of voltage to electrolytic solutions during ac electrokinetics. Experiments were performed with symmetrical planar electrodes aligned along a microfluidic channel. Fluorescein, a pH-dependent dye, was employed as the pH indicator for the detection of ion production. Images were captured for analysis at various voltage levels. From analyzing the fluorescence intensity and its distribution, it can be concluded that the production of ions from hydrolytic reactions takes place and increases with the ac voltage. The coefficient of deviation indicates a significant enhancement at ac voltage above 11 V_pp. Lastly, we demonstrate a strategy using dc-biased ac electrokinetics to achieve controllability in direction and magnitude of the net fluid flow in pumping application.     

Los aspectos socioculturales del área de lengua extranjera y el programa linguapax

La enseñanza de lenguas extranjeras está experimentando un «enriquecimiento curricular» muy positivo. De considerarse como un simple instrumento vehicular de conocimientos o comunicación, las lenguas extranjeras están pasando a conectarse con el gran problema social y cultural de conocer otros pueblos, de conocer el mundo. El objetivo-medio de la globalización (con ciencias sociales principalmente pero no sólo) se convierte así en uno de los puntos fuertes de la enseñanza de otras lenguas.     

从巴厘岛到哥本哈根的崎岖道路

《京都议定书》是解决气候问题踏出的重要第一步,但2012年第一执行期结束后的后续国际协议还未能确定。要避免气候问题日益严重,2009年哥本哈根缔约方大会相当关键,各国政府必须达成一个能够持续并加深应对气候变化努力的协议,也就是《京都议定书》的后续方案。     

Análisis crítico del entorno,elección de alternativas y clarificación de valores

En el presente artículo se relacionan el conjunto de estrategias conocidas bajo el epígrafe de «clarificación de valores» con el desarrollo de la personalidad moral. Se especifican las fases a tener en cuenta en su puesta en práctica, ejemplificándose en actividades dirigidas en especial a los alumnos del tercer ciclo de la Educación Primaria, ofreciéndose prototipos de actividades para otros tramos educativos.     

Museum without walls： Imagining new formative spaces

The ＂Museum of Childhood＂ is a project connected to the Post-Graduate Program in Education at Unesc （Brazil） and since 2005 has been developing interfaces with research, teaching and extension. In this paper, the authors would like to show how the museological conception of the Museum of Childhood makes imagination from one of the central axis of its formative relation with the public. Such conception breaks with the traditional view of museums as buildings where old things are collected and preserved. In fact, the Museum of Childhood, in the light of its objective conditions, wants to be a museum without walls, a museum that, using the device of spatial demarcation, spreads itself in the university campus and other public places, with the objective of communicating with the people. This conception comes closer to the transgressive nature of modem arts, which desacralizes the work of art as masterpiece and proposed, for example, the fugacity of installations and aesthetic interventions. This conception takes the Benjaminian notion of the past as the dimension where other futures remain latent, that is, the museum is seen not as a guardian of the past, but as an establishment that wants to use its collections to communicate with the public. The overrunning of the static physical space, for example, forces the public to recreate its horizon of expectations concerning what a museum show be. In order to accomplish its original objectives, the Museum of Childhood works intensively on the formation of the public by proposing monitored visits in which creative activities are developed and by improving its homepage.