2,180 research outputs found

    Bidimensional Cross-Cloud Application Management with TOSCA and Brooklyn (summary)

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    The diversity in the way different cloud providers offer their services, give their SLAs, present their QoS, support different technologies, etc., complicates the portability and interoperability of cloud applications, and favors vendor lock-in. Standards like TOSCA, and tools supporting them, have come to help in the provider-independent description of cloud applications. After the variety of proposed cross-cloud application management tools, we propose going one step further in the unification of cloud services with a deployment tool in which IaaS and PaaS services are integrated into a unified interface. We provide support for applications whose components are to be deployed on different providers, indistinctly using IaaS and PaaS services. The TOSCA standard is used to define a portable model describing the topology of the cloud applications and the required resources in an agnostic, and providers- and resources-independent way. We include in this paper some highlights on our implementation on Apache Brooklyn and present a non-trivial example that illustrates our approach. Resumen del artículo publicado en: Jose Carrasco, Javier Cubo, Francisco Durán, Ernesto Pimentel. Bidimensional Cross-Cloud Application Management with TOSCA and Brooklyn, 9th IEEE International Conference on Cloud Computing (CLOUD 2016), San Francisco, (EEUU). IEEE Computer Society, 2016.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    Post-neodarwinismo

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    La conferencia aborda diferentes aspectos de lo que se ha dado en llamar post-neodarwinismo. Entre ellos, el que más repercusión mediática ha tenido ha sido la expansión de la cladística en detrimento de la sistemática de la teoría sintética. Por otra parte, el paradigma adaptativo ha sido sustituido por una visión más plural en la que la historia y los denominados "structural constraints" explican buena parte de la variación fenotípica observada. Para terminar se abordan problemas relacionados con los mecanismos de especiación.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    Handling Data-Based Concurrency in Context-Aware Service Protocols

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    Dependency analysis is a technique to identify and determine data dependencies between service protocols. Protocols evolving concurrently in the service composition need to impose an order in their execution if there exist data dependencies. In this work, we describe a model to formalise context-aware service protocols. We also present a composition language to handle dynamically the concurrent execution of protocols. This language addresses data dependency issues among several protocols concurrently executed on the same user device, using mechanisms based on data semantic matching. Our approach aims at assisting the user in establishing priorities between these dependencies, avoiding the occurrence of deadlock situations. Nevertheless, this process is error-prone, since it requires human intervention. Therefore, we also propose verification techniques to automatically detect possible inconsistencies specified by the user while building the data dependency set. Our approach is supported by a prototype tool we have implemented.Comment: In Proceedings FOCLASA 2010, arXiv:1007.499

    Derecho e Historia en la filosofía jurídica de Kant

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    Ponencias de los tres talleres del Congreso "El fondo de la historia: Idealismo, Romanticismo y sus Repercusiones" celebrado del 22 al 24 de noviembre de 2010 en la Universidad Carlos III de Madri

    Towards Run-Time Verification of Compositions in the Web of Things using Complex Event Processing

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    Following the vision of the Internet of Things, physical world entities are integrated into virtual world things. Things are expected to become active participants in business and social processes. Then, the Internet of Things could benefit from the Web Service architecture like today’s Web does, so Future ser-vice-oriented Internet things will offer their functionality via service-enabled in-terfaces. In previous work, we demonstrated the need of considering the behav-iour of things to develop applications in a more rigorous way, and we proposed a lightweight model for representing such behaviour. Our methodology relies on the service-oriented paradigm and extends the DPWS profile to specify the order with which things can receive messages. We also proposed a static verifi-cation technique to check whether a mashup of things respects the behaviour, specified at design-time, of the composed things. However, a change in the be-haviour of a thing may cause that some compositions do not fulfill its behaviour anymore. Moreover, given that a thing can receive requests from instances of different mashups at run-time, these requests could violate the behaviour of that thing, even though each mashup fulfills such behaviour, due to the change of state of the thing. To address these issues, we present a proposal based on me-diation techniques and complex event processing to detect and inhibit invalid invocations, so things only receive requests compatible with their behaviour.Work partially supported by projects TIN2008-05932, TIN2012-35669, CSD2007-0004 funded by Spanish Ministry MINECO and FEDER; P11-TIC-7659 funded by Andalusian Government; and Universidad de Málaga, Campus de Excelencia Internacional Andalucía Tec

    Phubbing. Wing Network connected and disconnected from Reality. An Analysis in Relation to Psychological Well-Being

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    La investigación analiza en qué medida el uso problemático de los smartphones repercute en el bienestar psicológico de los jóvenes universitarios. Partiendo de un enfoque metodológico descriptivo, se ha empleado el cuestionario MPPUSA versión adaptada a la población adolescente en español por López, Honrubia y Freixa (2012), y el cuestionario de Salud General de Golberg (1996) GHQ-28 que permite establecer relaciones entre el uso inadecuado smartphones y los indicadores del bienestar psicológico. Los resultados muestran una tendencia elevada en las puntuaciones obtenidas entre el uso problemático de estos dispositivos y las variables síntomas somáticos, ansiedad e insomnio, disfunción social y depresión.The purpose of study is to determine in which ways the problematic use of smartphones affect the wellbeing of university youth. From a descriptive methodological approach, it has been analyzed the information obtained through the Questionnaire MPPUSA adapted version in Spanish adolescents by López, Honrubia y Freixa (2012), and the General Health Questionnaire by Golberg (1996) GHQ-28 which it allows to establish relations between the inappropriate use of smartphones and indicators of psychological wellbeing. The results show a high trend in scores between the problematic use of this device and somatic symptoms, anxiety and insomnia, social dysfunction and depression

    The European Higher Education Area. Attitudes of students at the University of Extremadura

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    La creación de un Espacio Europeo de Educación Superior supone un reto para toda la comunidad educativa, pero en especial para el profesorado y el alumnado universitario, que son, en definitiva, los que vivirán en su día a día los múltiples cambios que esto ocasiona. A través de una escala tipo Likert valoraremos la actitud que presenta el alumnado universitario ante la convergencia europea y daremos respuesta a las siguientes cuestiones: ¿El conocimiento sobre el EEES promoverá una actitud más positiva hacia el mismo?, ¿Encontramos diferencias significativas en la actitud entre el alumnado que realiza otras ocupaciones simultáneas a su educación universitaria y los que no?; El alumnado con una actitud positiva ante el EEES, ¿tendrá una visión más favorable de su rendimiento académico?. Como veremos un mayor conocimiento sobre el EEES supondría una aceptación mas positiva del mismo.The creation of a European Higher Education Area is a challenge for the educational community, but especially for teachers and university students, who are, ultimately, those who live in their day to day the many changes that this causes. Using a Likert-type scale value the attitude presented by university students to European convergence and will answer the following question: Is the knowledge of the EHEA will promote a more positive attitude towards it?; Do we find significant differences in attitude among students who engaged in other occupations simultaneous college education and those without?; The students with a positive attitude towards the EHEA, will it have a more favourable view of their academic performance?. As we will see a greater knowledge of the EHEA would be a more positive acceptance of it.peerReviewe

    The use of ICT tools by academic teachers in the international comparative context

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    The article sets out to analyze the professional competencies on the standard European e-Competence Framework. The survey of information technology teachers of Ukrainian universities concerning the necessity of forming and development of European e-Competence Framework competencies allowed defining the priority areas for training and forming the content component of a model of professional competencies development of information technology university teachers. The proposed model distinguishes stages, factors, and resources for training teachers. Teachers’ attitude to motivation, time and money allocation for professional development was researched. The content component of the development of professional competences of teachers of information technologies is offered. Recommendations for training and advanced training of teachers of information technologies, assessment of the level of development of professional competence, was proposed

    Emotional and Academic performance of students in 6th and 8th grades of basic education

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    El niño en el colegio pasa por un proceso de desarrollo a través del cual se observan grandes variedades individuales. Mereer (1994) refiere que muchos individuos frustrados, por las dificultades que tienen en adquirir conocimientos, actúan de modo disruptivo y tienen sentimientos negativos de autoestima, por centrarse en lo que no consiguen realizar. En su relación con el profesor, el niño tiene que sentir seguridad, confianza y refuerzo positivo, para evitar así, el ciclo vicioso entre dificultades de aprendizaje y problemas emocionales. Según Fonseca (2008), los niños con inestabilidad social y emocional son susceptibles de obtener bajos resultados escolares, dado que los disturbios emocionales causan la desintegración del comportamiento y del potencial de aprendizaje.The child at school goes through a development path over which are observed great individual varieties. Mercer (1994) notes that many individuals confronted with their difficulties in acquiring knowledge act in a disruptive way and have negative feelings of selfesteem by fixing themselves in what they cannot do. In the relation with the teacher, the child has to feel security, confidence and positive reinforcement, thus avoiding the vicious cycle between learning disabilities and emotional problems. According to Fonseca (2008) children with emotional and social instability are likely to be low-achieving students, since emotional disturbances lead to a breakdown of behavior and learning potential.peerReviewe

    The use of ICT in the development of (meta)linguistic competence in children with language development difficulties - Virtualities of the “Boadmaker” programme in the development of teaching-learning strategies

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    El problema de la presente investigación se centra en la intervención psicopedagógica en Educación Especial, particularmente en las Tecnologías de la Información y de la Comunicación y en el desarrollo de las capacidades (meta)lingüísticas de los niños con disturbios en el desarrollo de la lenguaje. Incide en las potencialidades de un software educativo - “Boardmaker” para el desarrollo de estrategias de enseñanza/aprendizaje. En cuanto a la metodología de trabajo es un estudio de caso, exploratorio, con un diseño ABA de n=1 (intrasujeto). Considerando las teorías de los autores estudiados, los resultados de la investigación confirman la importancia de las Tecnologías de la Información y de la Comunicación en la educación y las ventajas del programa “Boardmaker” en el desarrollo de las capacidades lingüísticas del sujeto del estudioThe present study is centred in the psycho and pedagogical intervention in special education, particularly in the area of ICT and the development of linguistic competences among children with special educational needs. Emphasis is given to the “Boardmaker” programme as a medium for developing teaching-learning strategies. This is an exploratory case study with an ABA methodological design. Taking into account the theories of the authors studied, the research results confirm the importance of ICT in education and the advantages offered by the “Boardmaker” programme in the development of linguistic abilities among the subjects of the study.peerReviewe
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