Analysis of a Quasi-Experimental Design Based on Environmental Problem Solving for the Initial Training of Future Teachers of Environmental Education     

Emilia I. De La Fuente  F. Javier Perales  Juan García 《The Journal of environmental education》2013,44(2):19-21

Abstract

Many parameters may be used to measure the deterioration of water quality. One very important parameter is total dissolved solids (TDS). An increase in TDS beyond acceptable levels can have a significant impact on municipal, industrial, and agricultural use of water. In this review an overview of the problem of high TDS levels is given. Factors related to TDS which are considered include: (a) laboratory determination, (b) natural and man-influenced sources, (c) adverse effects, and (d) treatment process removal techniques. A brief summary of the TDS problem associated with the Colorado River is also considered.  相似文献   

Comprensión de la inclusion jerárquica de clases Estudio evolutivo     

Jesús Alonso  Francisco Gutiérrez 《Infancia y Aprendizaje》2013,36(35-36):69-95

Resumen

En el presente trabajo se estudia el desarrollo de la comprensión de los principios que rigen la inclusión jerárquica de clases en sujetos de 4 a 14 años. Se presentan y comparan los resultados de tres experimentos en los que se utilizan, respectivamente, cuestiones de tipo piagetiano, problemas deductivos y problemas de inclusión con los cuantificadores «todos» y «algunos». Se examina también el efecto que diferentes variables definitorias de la estructura de las tareas tienen en el éxito o el fracaso en las mismas. Los resultados sugieren un desarrollo lineal progresivo en relación con la comprensión de la extensión diferente de clase y subclase, y la aplicación correcta de los cuantificadores, y un salto entre los 9 y 12 años en relación con la comprensión de la transitividad. Se discuten las implicaciones teóricas y prácticas de estos resultados.  相似文献   

La aproximación neuropsicológica a la dislexia evolutiva. I: Maduración cerebral     

Dionisio Manga  Francisco Ramos Campos 《Infancia y Aprendizaje》2013,36(34):43-55

Resumen

En los últimos años se constata un auge singular de la neuropsicología de las dificultades de aprendizaje, en especial de la neuropsicología de la dislexia evolutiva. En este trabajo se estudia, como posible explicación etiológica de la dislexia evolutiva, el fallo en el desarrollo madurativo cerebral; se revisan y analizan, a efectos de poder ofrecer pronósticos y modos de intervención apropiados, la diferencia entre la hipótesis del retraso y la del déficit en la maduración, así como la alternativa de restitución o sustitución en la recuperación funcional. Se examinan también otros problemas relacionados entre sí con la dislexia y con la neuropsicología del desarrollo, a saber, la base neurofistológica para formación de subgrupos disléxicos, la disfunción de secuenciación oculomotora como etiología de dislexia y, por fin, la luz que la dislexia adquirida aporta a la dislexia evolutiva al relacionar lesiones del lóbulo parietal inferior con el subdesarrollo madurativo de estas mismas zonas cerebrales.  相似文献   

Lifelong learning in public libraries in 12 European Union countries: issues in monitoring and evaluation     

Javier Stanziola 《International Journal of Lifelong Education》2013,32(5):631-649

Public libraries in Europe have supported lifelong learning for the past 500 years. Since the Lisbon Strategy emphasized the role of lifelong learning in economic policy, public libraries have been repositioning their services to respond to this new context. In some cases, these roles are undertaken with limited legislative or strategic changes and stagnant levels of funding. As a result, the sector receives little recognition of its role in lifelong learning amongst policy-makers. A consortium representing 12 EU countries, ENTITLE, was formed to increase awareness of the role public libraries play in this area. It undertook a survey amongst its members to scope relevant policies, strategies and evaluation efforts. This paper presents an analysis of this survey. It shifts the focus away from debates about the instrumental value of libraries. Instead, it explores the role that evaluation plays in policy implementation. It argues that participatory evaluation can help reduce conflict and ambiguity amongst the stakeholders involved in delivering symbolic implementation of policies. So far, however, current evaluation efforts in most ENTITLE countries have played a limited role in supporting coordination and, for some countries, may in fact remove resources away from more effective development efforts, including pedagogical training.  相似文献   

Learning in collaborative settings: students building on each other’s ideas to promote their mathematical understanding     

John M. Francisco 《Educational Studies in Mathematics》2013,82(3):417-438

The purpose of this study is to contribute insights into how collaborative activity can help promote students’ mathematical understanding. A group of six high school students (15- to 16-year olds) worked together on a challenging probability task as part of a larger, after-school, longitudinal study on students’ development of mathematical ideas in problem-solving settings. The students solved the problem and produced a valid justification of their solution. This study shows that collaborative activity can help promote students’ mathematical understanding by providing opportunities for students to critically reexamine how they make claims from facts and also enable them to build on one another’s ideas to construct more sophisticated ways of reasoning. Implications for classroom teaching and ideas for future research are also discussed. The study helps address a documented need for a better understanding of how mathematical learning evolves in social settings.  相似文献   

Andalusian teacher centres: in the political crossfire     

Juan Fernández-Sierra  Javier Barquín-Ruiz 《教育政策杂志》2013,28(3):337-352

This article analyses the background of teacher centres (CEPs) in Spain and presents the synthesis of conclusions drawn from the evaluation of such centres and continuous education in Andalusia (Spain), carried out according to the model of democratic evaluation defended by Barry McDonald. Three issues are dealt with: (a) the change of government policies concerning the running of teacher centres, from autonomy to control; (b) the changes in the way teachers' continuous education and advice strategies are understood; and (c) how teacher commitment to innovation and education reform evolved with time. All this takes place within the framework of political confrontations between the two main parties in Spain: the Socialists (PSOE) - who institutionalized the CEPs and created education reform, and who continue to govern in Andalusia - and the Conservatives (PP) - who are currently in power in central government and who neither supported educational reform nor the teacher centres. In this context, the analysis of the use of the CEPs as a political weapon in their confrontation is one of the main objectives of the evaluation.  相似文献   

Conceptualising gender and violence in research: Insights from studies in schools and communities in Kenya,Ghana and Mozambique     

Jenny Parkes  Jo Heslop  Samwel Oando  Susan Sabaa  Francisco Januario  Asmara Figue 《International Journal of Educational Development》2013

Gender and violence are complex and contested concepts, understood in varying ways in research, policy and interventions in education. Often there has been an emphasis on acts of violence, with much less attention to the social conditions and gender relations behind these acts. This paper discusses the development of a conceptual framework that emphasises not just acts and individuals, but also transformation of gendered power relations and inequities, alongside a focus on addressing the identity conflicts and struggles of everyday life. The framework underpins research, advocacy and community interventions in a multi-partnered project on violence against girls led by ActionAid.  相似文献   

LGBTQ+ health research guides at North American health sciences libraries: a survey and content analysis     

Gregg A. Stevens  Francisco J. Fajardo 《Journal of the Medical Library Association》2021,109(3):406

Objectives:Current literature recommends online research guides as an easy and effective tool to promote LGBTQ+ health information to both health care providers and the public. This cross-sectional study was designed to determine how extensive LGBTQ+ health guides are among hospital and academic libraries and which features are most prevalent.Methods:In order to locate LGBTQ+ health guides for content analysis, we searched for guides on the websites of libraries belonging to the Association of Academic Health Sciences Libraries (AAHSL) and the Canadian Association of Research Libraries (CARL). Additionally, we searched the Springshare interface for LibGuides with the word “health” and either “LGBT” or “transgender.” Content analysis was performed to identify major characteristics of the located guides, including target audience and the information type provided.Results:LGBTQ+ research guides were identified for 74 libraries. Of these, 5 were hospital libraries, and the rest were academic libraries. Of 158 AAHSL member libraries, 48 (30.4%) had LGBTQ+ guides on their websites. Nearly all guides (95.9%) provided general LGBTQ+ health information, and a large majority (87.8%) also had information resources for transgender health. Smaller percentages of guides contained information on HIV/AIDS (48.6%) and women''s health (16.2%).Conclusions:Even though literature recommends creating LGBTQ+ health guides, most health sciences libraries are missing an opportunity by not developing and maintaining these guides. Further research may be needed to determine the usage and usefulness of existing guides and to better identify barriers preventing libraries from creating guides.  相似文献   

Schooling and Learning in U.S.-Mexican Families: A Case Study of Households     

Tapia  Javier 《The Urban Review》2000,32(1):25-44

Recent research indicates that learning and the academic performance of Mexican-American students are influenced by the interplay of economic, cultural, linguistic, and educational factors. In this work, a household analysis is used to illustrate how students' schooling and academic achievement are influenced by household members' activities at home, in the community, and in the schools. The study reports that a household analysis help us understand the relative weight of these factors in shaping students' school performance, and that it also accounts for differential academic achievement in any Mexican-American community. This household analysis indicates that level of family stability and the social and economic conditions of poor communities are the strongest factors affecting students' learning and academic achievement.  相似文献   

Theodosius Dobzhansky: A man for all seasons     

Francisco J. Ayala 《Resonance》2000,5(10):48-60

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