The filling kinetics of liquids in straight nano-channels of arbitrary cross-sections is discussed. We assume that the capillary force induces a fluid flow in channels characterized by their compactness, C = P2=A, where P is the perimeter and A is…

AbstractA detailed analysis is provided here of the concept, perceptions and attitudes towards native and non-native English speaking teachers. The notion that the ideal language educator is a native speaker is explained and questioned, and examples of the unfair treatment…

This issue is an especially exciting one for me as editor of Bellaterra. We have now been publishing this journal for more than twelve months and in this volume, new features that are the fruit of our experience from this…

AbstractThe implementation of foreign languages in primary schools in Europe and Latin America since the 1980’s motivated some administrative and academic decisions in the teacher development of both in-service and pre-service primary school teachers. In this article, first, the most…

SummaryReview of the book entitled Cultural-Historical Perspectives on Teacher Education and Development: Learning Teaching, 2010, Routledge: Taylor & Francis Group, London and New York (Edited by Viv Ellis, Anne Edwards, and Peter Smagorinsky). The review first discusses the importance that…

Este trabajo aporta nuevas evidencias sobre el impacto de las reformas comerciales sobre los salarios. En primer lugar, se introduce un modelo de comercio que combina un mecanismo de fijación de salarios no competitivo debido a la existencia de sindicatos,…

El proyecto actual expone el diseño y la implementación de un prototipo de estación meteorológica remota, para el Observatorio Astronómico de Quito (O.A.Q.), con la finalidad de obtener información meteorológica del medio ambiente. De esta manera, esta dependencia de la…

The application of ANNs (Artifi cial Neural Networks) has been studied by many researchers in modelling rainfall runoff processes. However, the work so far has been focused on the rainfall data from traditional raingauges. Weather radar is a modern technology…

El crecimiento continuo de la Internet ha permitido a las personas, alrededor de todo mundo, realizar transacciones en línea, buscar información o navegar usando el explorador de la Web. A medida que más gente se siente cómoda usando los exploradores…

Se presenta un control automático simple para aplicaciones de caracterización óptica de materiales usando la técnica Z-scan. En particular, se enfatiza el proceso de automatización. Para este propósito, se usó un puerto de comunicación de I/O de una tarjeta de…