La influencia del estilo cognitivo «Dependencia-Independencia de campo» en la resolución de dos problemas de física

Resumen

Este artículo trata de la influencia que tiene, en la actuación formal de los adolescentes, el estilo cognitivo. En este caso, el estilo cognitivo estudiado es la “Dependencia-Independencia de campo”, y las pruebas formales utilizadas son dos problemas de física en los que está implicado el esquema de control de variables. Los resultados obtenidos avalan la hipótesis de que, en este tipo de tareas, son los sujetos dependientes de campo los que tienen mayores dificultades para actualizar su competencia formal debido, fundamentalmente, a la dificultad que presentan para disociar unos factores de otros, sobre todo cuando éstos se ofrecen perceptivamente muy ligados.     

Representación espacial en los niños ciegos: una investigación sobre las principales variables que la determinan y los procedimientos de objetivación más adecuados

Resumen

El objetivo fundamental de este trabajo es el estudio conjunto de los principales factores que determinan el conocimiento y la representación del entorno en los invidentes, haciendo especial énfasis en las relaciones entre desarrollo y aprendizaje. El marco teórico se toma de la psicologia ambiental y de la psicología evolutiva del conocimiento espacial. El procedimiento consiste en el aprendizaje de un entorno desconocido, en un máximo de cuatro sesiones. El conocimiento espacial se evalúa mediante tres tipos de técnicas. Los resultados no muestran, en términos generales, grandes diferencias entre ciegos de nacimiento y ciegos tardíos, ni tampoco entre el espacio pequeño y el grande. Las diferencias más significativas son las debidas a la edad de los sujetos, y el aprendizaje también se revela como factor importante, aunque en nuestro diseño parezca estar subordinado al desarrollo. La investigaáón tiene implicaciones claras para la instrucción de la orientación, movilidad y conocimiento del entorno en los invidentes.     

La percepción visual y su relación con la lectura: datos evolutivos a través del Reversal Test

Resumen

Con el trabajo aquí presentado, nos proponíamos reducir el número de items perceptivos del Reversal Test (RO), 2.5 veces, sin perder sustancialmente información.

Se analizan también: a) La evolución de la variable perceptiva, b) Las diferencias perceptivas debidas al sexo, que no son significativa, c) Las diferencias por edad, dentro del mismo año natural: niños «jóvenes», niños «viejos», yd) Las relaciones existentes entre la variable perceptiva y la lectura, que van perdiendo intensidad a lo largo de los 6 años analizados.     

Clase social y situación dentro de la fratria: Interacción y efectos sobre el desarrollo del individuo

Resumen

En este estudio se analiza la influencia de la clase social, el número de hermanos y el orden de nacimiento sobre una serie de variables cognitivas y de rendimiento escolar.

Se ha realizado la investigación sobre una muestra de 507 alumnos de 1° de E.G.B., pertenecientes a los Centros Públicos de Valladolid y provincia. Las variables de rendimiento escolar se evaluaron a través de la opinión del profesor. La valoración, en cambio, de las cognitivas se realizó por medio de pruebas estandarizadas. Dentro de los efectos principales, y dejando aparte las diferencias marcadas por el medio social, obviamente esperadas, destacamos una fuerte influencia del orden de nacimiento sobre prácticamente todas las variables dependientes. Su interacción con la variable socio cultural es el resultado más destacable del presente trabajo. Dedujimos como hipótesis explicativa las diferentes pautas culturales que propician o no la estabilidad de los patrones educativos familiares.     

Variables involved in personal, social and school adjustment in a sample of preschool-aged children from different cultural backgrounds

The continuing incorporation of immigrant populations into the Spanish educational system poses an important challenge in that all participants must cooperate toward creating the best possible adaptation process at the academic level as well as on the personal and social levels. A number of different factors appear to influence children’s adjustment during the preschool stage, and these factors are especially relevant since many studies have shown that this is a key period for the prevention of future difficulties. The present study examines the variables involved in the adaptation of a group of preschool-aged children from different cultural backgrounds in Spain. The results indicate that preschoolers, regardless of their background, have similar performance and learning potential, with language proficiency being the factor that most clearly affects the other variables investigated. It was also found that children’s attitudes toward learning were related to the presence of behavioral difficulties and with the quality and type of parental child-rearing practices. These practices appear to be related to a number of difficulties immigrant children may experience on personal and social levels.     

Internet,Multimedia and Virtual Laboratories in a 'Third World' Environment

Electronic education faces similar difficulties in low-budget institutions throughout the world (many of them in common with developed nations), including mainly rejection or disinterest from staff and students, insufficient funds, outdated hardware, incompatible software and poor Internet access. Over the past five years, with low budgets and considerable limitations in the equipment available, the Universidad Estatal a Distancia in Costa Rica has produced multimedia courses and materials for use on the Internet, as well as designing virtual laboratories that can be run on cheap computers. The authors recount their experiences in the hope that these will prove useful to others. They explain how simultaneous production of traditional materials (mainly printed textbooks) and online courses, together with simple automatic evaluation and 'outsourcing', reduce costs significantly. They conclude that HTML and JAVA are currently the choice computer languages to reach the greatest number of users without need of a specific computing platform, powerful computers or expensive software.     

Deleuze,action research and rhizomatic growth

Deleuze and his colleagues, particularly Guattari, have had a profound impact on a number of fields of study. The authors argue that their work offers a range of images to help think about and write action research, a way that acknowledges and celebrates the complexities of the sites of action. The article has a divided structure, coherent with the style of Deleuze & Guattari. The authors present some Deleuzian ideas, particularly the concept of rhizomatic growth, and show how they might profitably be used to analyse and write accounts of action research, reflecting the multiplicities of practice, in this case within education. They have shown the potentialities of the ‘rhizome’ as a way to rethink the field of action research, imagining a new epistemology (in which the concepts work, rather than represent) and how the rhizome demands experimental forms of writing ourselves in action research. They show a cartography (of smooth and striated space) that is required to think rhizomatically about action research.     

Reliability and validity evidence of scores on the Achievement Goal Tendencies Questionnaire in a sample of Spanish students of compulsory secondary education

This study examined the reliability and validity evidence drawn from the scores of the Spanish version of the Achievement Goal Tendencies Questionnaire (AGTQ) using a sample of 2,022 (51.1% boys) Spanish students from grades 7 to 10. Confirmatory factor analysis replicated the correlated three‐factor structure of the AGTQ in this sample: Learning Goals (LG), Social Reinforcement Goals (SRG), and Performance Goals (PG). The AGTQ yields relatively reliable scores for Spanish students. Logistic regression analyses were used to provide additional validity evidence of AGTQ scores on academic success (general, Spanish, and mathematics). Results indicated that general academic success was 15% and 5% more likely every time that scores on LG and PG scales increased 1 point, respectively, although general academic success was 9% less likely every time that scores on SRG scale increased 1 point. These results were similar for Spanish and mathematics. However, the score on the LG scale did not forecast success in both subjects. © 2009 Wiley Periodicals, Inc.     

Design and development challenges for an E2E DRM content business integration platform

Current studies on Digital Rights Management (DRM) have focused on controlling access to and copies of contents, centered exclusively on the end of the value chain (end users). This focus has been oriented towards security and encryption as a means of solving the issue of illegal copying by purchasers. In this paper, we propose End-to-End Digital Rights Management (E2E DRM) that involves the protection of the content throughout the entire value chain. This concept is given form in the new technologies for representing intellectual property (IP) which, in a secure and unequivocal manner, identify the content at each point in the value chain: from the author to the end user, the content is identifiable in any of the transactions and statuses through which it passes. The key concept which E2E DRM must provide is not only the governability of access and copying, but also that of all the processes associated with the content business. We establish an E2E DRM model and architecture, and propose the R&D management of its design and implementation that makes it possible to protect content from content creator to purchaser. Finally, the paper also analyzes their impact from a global perspective.     

Providing industry 4.0 technologies: The case of a production technology cluster

The concept of industry 4.0 (i4.0) encompasses the integration of different technologies into an autonomous, knowledge- and sensor-based, self-regulating production system. Our objective is to synthesize which are the challenges and opportunities of adopting i4.0 from the perspective of technology provider companies. A single-case research was conducted with ten companies at the Portuguese Production Technologies Cluster. Based on i4.0 technologies – Augmented reality; Additive Manufacturing; Big Data; Cloud Computing; Cyber-Physical Systems; Cybersecurity; Smart Robotics; Simulation; and System Integration – interviewees mentioned that the main adoption challenges are the analysis of data generated, integration of new technologies with available equipment and workforce, and computational limitations. The main opportunities are improvements in: efficiency; flexibility; productivity; cybersecurity; quality of products and services; and decision process due to data analysis. Interviewees have also foreseen changes in company's business model through the integration of internal resources with complementary activities of their partners and other cluster companies.