965 resultados para Collaborative Systems of Systems


Relevância:

80.00% 80.00%

Publicador:

Resumo:

Este trabajo lleva a cabo un análisis de la aportación que las políticas urbanas de la Unión Europea (UE), y en particular las dos fases de la Iniciativa Comunitaria URBAN2, han hecho a la práctica de la regeneración urbana en España desde la perspectiva de la Planificación Colaborativa. La adopción de la Planificación Colaborativa como marco conceptual ha provisto la base teórica, el punto de vista e hilo conductor desde el que se ha analizado la dimensión urbana de las políticas comunitarias, poniendo el foco específicamente en URBAN, a través de la realización de un estudio que ha profundizado en el contexto histórico y el debate teórico desde los que se pusieron las bases metodológicas de esta forma de incidir en la degradación urbana, propuesta por la Comisión Europea en 1994. Esto ha llevado a profundizar en el escenario británico de la regeneración urbana, en el que la investigación ha encontrado la referencia sobre la que en gran medida se gestó esta Iniciativa Comunitaria. El trabajo descrito ha permitido caracterizar URBAN como un instrumento de regeneración urbana que conlleva la asunción de un enfoque colaborativo, que en última instancia tiene como objetivo la transformación de la gobernanza. Asimismo, ha sentado las bases sobre las que se ha fundamentado el análisis de la materialización de la dimensión colaborativa de los programas URBAN y URBAN II implementados en España. Los resultados alcanzados por los programas, considerados a la luz de la profundización en la práctica de la regeneración urbana del país, han permitido llegar a conclusiones sobre la aportación que la dimensión colaborativa de URBAN ha hecho al contexto español y señalar un conjunto de líneas de investigación que suponen la continuación del camino emprendido por esta Tesis Doctoral. Summary This work analyses the contribution that the urban policy of the European Union (EU), and in particular the two rounds of the URBAN Community Initiative3, as its most especific instrument, have made to the urban regeneration practice in Spain from the perspective of Collaborative Planning. The adoption of Collaborative Planning as a conceptual framework has provided the theoretical base, the focus and the guiding principle from which to analyse the urban dimension of European policies, and particularly URBAN, through the development of a study that has delved into the historical context and the theoretical debate that laid the methodological foundations of this approach to fight urban degradation launched by the European Commission in 1994. This has included the study of the British scenario of urban regeneration, in which the research has found the reference point on which URBAN was largely conceived. The work described has allowed this Community Initiative to be characterised as a tool of urban regeneration which involved the adoption of a collaborative approach, whose ultimate aim was the transformation of governance. It has also laid the foundations on which the analysis of the implementation of the collaborative approach in the URBAN and URBAN II programmes developed in Spain has been based. The results attained by the programmes considered in light of the development of the practice of urban regeneration in the Spanish scenario, have led to conclusions about the contribution that the collaborative dimension of URBAN has made to the Spanish context and have resulted in the identification of a number of lines of research that represent the continuation of the path taken by this Thesis.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

This paper introduces a theoretical model for developing integrated degree programmes through e-learning systems as stipulated by a collaboration agreement signed by two universities. We have analysed several collaboration agreements between universities at the national, European, and transatlantic level as well as various e-learning frameworks. A conceptual model, a business model, and the architecture design are presented as part of the theoretical model. The paper presents a way of implementing e-learning systems as a tool to support inter-institutional degree collaborations, from the signing of the collaborative agreement to the implementation of the necessary services. In order to show how the theory can be tested one sample scenario is presented.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

In this paper we provide a method that allows the visualization of similarity relationships present between items of collaborative filtering recommender systems, as well as the relative importance of each of these. The objective is to offer visual representations of the recommender system?s set of items and of their relationships; these graphs show us where the most representative information can be found and which items are rated in a more similar way by the recommender system?s community of users. The visual representations achieved take the shape of phylogenetic trees, displaying the numerical similarity and the reliability between each pair of items considered to be similar. As a case study we provide the results obtained using the public database Movielens 1M, which contains 3900 movies.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

This paper presents an ant colony optimization algorithm to sequence the mixed assembly lines considering the inventory and the replenishment of components. This is a NP-problem that cannot be solved to optimality by exact methods when the size of the problem growth. Groups of specialized ants are implemented to solve the different parts of the problem. This is intended to differentiate each part of the problem. Different types of pheromone structures are created to identify good car sequences, and good routes for the replenishment of components vehicle. The contribution of this paper is the collaborative approach of the ACO for the mixed assembly line and the replenishment of components and the jointly solution of the problem.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

La metodología Integrated Safety Analysis (ISA), desarrollada en el área de Modelación y Simulación (MOSI) del Consejo de Seguridad Nuclear (CSN), es un método de Análisis Integrado de Seguridad que está siendo evaluado y analizado mediante diversas aplicaciones impulsadas por el CSN; el análisis integrado de seguridad, combina las técnicas evolucionadas de los análisis de seguridad al uso: deterministas y probabilistas. Se considera adecuado para sustentar la Regulación Informada por el Riesgo (RIR), actual enfoque dado a la seguridad nuclear y que está siendo desarrollado y aplicado en todo el mundo. En este contexto se enmarcan, los proyectos Safety Margin Action Plan (SMAP) y Safety Margin Assessment Application (SM2A), impulsados por el Comité para la Seguridad de las Instalaciones Nucleares (CSNI) de la Agencia de la Energía Nuclear (NEA) de la Organización para la Cooperación y el Desarrollo Económicos (OCDE) en el desarrollo del enfoque adecuado para el uso de las metodologías integradas en la evaluación del cambio en los márgenes de seguridad debidos a cambios en las condiciones de las centrales nucleares. El comité constituye un foro para el intercambio de información técnica y de colaboración entre las organizaciones miembro, que aportan sus propias ideas en investigación, desarrollo e ingeniería. La propuesta del CSN es la aplicación de la metodología ISA, especialmente adecuada para el análisis según el enfoque desarrollado en el proyecto SMAP que pretende obtener los valores best-estimate con incertidumbre de las variables de seguridad que son comparadas con los límites de seguridad, para obtener la frecuencia con la que éstos límites son superados. La ventaja que ofrece la ISA es que permite el análisis selectivo y discreto de los rangos de los parámetros inciertos que tienen mayor influencia en la superación de los límites de seguridad, o frecuencia de excedencia del límite, permitiendo así evaluar los cambios producidos por variaciones en el diseño u operación de la central que serían imperceptibles o complicados de cuantificar con otro tipo de metodologías. La ISA se engloba dentro de las metodologías de APS dinámico discreto que utilizan la generación de árboles de sucesos dinámicos (DET) y se basa en la Theory of Stimulated Dynamics (TSD), teoría de fiabilidad dinámica simplificada que permite la cuantificación del riesgo de cada una de las secuencias. Con la ISA se modelan y simulan todas las interacciones relevantes en una central: diseño, condiciones de operación, mantenimiento, actuaciones de los operadores, eventos estocásticos, etc. Por ello requiere la integración de códigos de: simulación termohidráulica y procedimientos de operación; delineación de árboles de sucesos; cuantificación de árboles de fallos y sucesos; tratamiento de incertidumbres e integración del riesgo. La tesis contiene la aplicación de la metodología ISA al análisis integrado del suceso iniciador de la pérdida del sistema de refrigeración de componentes (CCWS) que genera secuencias de pérdida de refrigerante del reactor a través de los sellos de las bombas principales del circuito de refrigerante del reactor (SLOCA). Se utiliza para probar el cambio en los márgenes, con respecto al límite de la máxima temperatura de pico de vaina (1477 K), que sería posible en virtud de un potencial aumento de potencia del 10 % en el reactor de agua a presión de la C.N. Zion. El trabajo realizado para la consecución de la tesis, fruto de la colaboración de la Escuela Técnica Superior de Ingenieros de Minas y Energía y la empresa de soluciones tecnológicas Ekergy Software S.L. (NFQ Solutions) con el área MOSI del CSN, ha sido la base para la contribución del CSN en el ejercicio SM2A. Este ejercicio ha sido utilizado como evaluación del desarrollo de algunas de las ideas, sugerencias, y los algoritmos detrás de la metodología ISA. Como resultado se ha obtenido un ligero aumento de la frecuencia de excedencia del daño (DEF) provocado por el aumento de potencia. Este resultado demuestra la viabilidad de la metodología ISA para obtener medidas de las variaciones en los márgenes de seguridad que han sido provocadas por modificaciones en la planta. También se ha mostrado que es especialmente adecuada en escenarios donde los eventos estocásticos o las actuaciones de recuperación o mitigación de los operadores pueden tener un papel relevante en el riesgo. Los resultados obtenidos no tienen validez más allá de la de mostrar la viabilidad de la metodología ISA. La central nuclear en la que se aplica el estudio está clausurada y la información relativa a sus análisis de seguridad es deficiente, por lo que han sido necesarias asunciones sin comprobación o aproximaciones basadas en estudios genéricos o de otras plantas. Se han establecido tres fases en el proceso de análisis: primero, obtención del árbol de sucesos dinámico de referencia; segundo, análisis de incertidumbres y obtención de los dominios de daño; y tercero, cuantificación del riesgo. Se han mostrado diversas aplicaciones de la metodología y ventajas que presenta frente al APS clásico. También se ha contribuido al desarrollo del prototipo de herramienta para la aplicación de la metodología ISA (SCAIS). ABSTRACT The Integrated Safety Analysis methodology (ISA), developed by the Consejo de Seguridad Nuclear (CSN), is being assessed in various applications encouraged by CSN. An Integrated Safety Analysis merges the evolved techniques of the usually applied safety analysis methodologies; deterministic and probabilistic. It is considered as a suitable tool for assessing risk in a Risk Informed Regulation framework, the approach under development that is being adopted on Nuclear Safety around the world. In this policy framework, the projects Safety Margin Action Plan (SMAP) and Safety Margin Assessment Application (SM2A), set up by the Committee on the Safety of Nuclear Installations (CSNI) of the Nuclear Energy Agency within the Organization for Economic Co-operation and Development (OECD), were aimed to obtain a methodology and its application for the integration of risk and safety margins in the assessment of the changes to the overall safety as a result of changes in the nuclear plant condition. The committee provides a forum for the exchange of technical information and cooperation among member organizations which contribute their respective approaches in research, development and engineering. The ISA methodology, proposed by CSN, specially fits with the SMAP approach that aims at obtaining Best Estimate Plus Uncertainty values of the safety variables to be compared with the safety limits. This makes it possible to obtain the exceedance frequencies of the safety limit. The ISA has the advantage over other methods of allowing the specific and discrete evaluation of the most influential uncertain parameters in the limit exceedance frequency. In this way the changes due to design or operation variation, imperceptibles or complicated to by quantified by other methods, are correctly evaluated. The ISA methodology is one of the discrete methodologies of the Dynamic PSA framework that uses the generation of dynamic event trees (DET). It is based on the Theory of Stimulated Dynamics (TSD), a simplified version of the theory of Probabilistic Dynamics that allows the risk quantification. The ISA models and simulates all the important interactions in a Nuclear Power Plant; design, operating conditions, maintenance, human actuations, stochastic events, etc. In order to that, it requires the integration of codes to obtain: Thermohydraulic and human actuations; Even trees delineation; Fault Trees and Event Trees quantification; Uncertainty analysis and risk assessment. This written dissertation narrates the application of the ISA methodology to the initiating event of the Loss of the Component Cooling System (CCWS) generating sequences of loss of reactor coolant through the seals of the reactor coolant pump (SLOCA). It is used to test the change in margins with respect to the maximum clad temperature limit (1477 K) that would be possible under a potential 10 % power up-rate effected in the pressurized water reactor of Zion NPP. The work done to achieve the thesis, fruit of the collaborative agreement of the School of Mining and Energy Engineering and the company of technological solutions Ekergy Software S.L. (NFQ Solutions) with de specialized modeling and simulation branch of the CSN, has been the basis for the contribution of the CSN in the exercise SM2A. This exercise has been used as an assessment of the development of some of the ideas, suggestions, and algorithms behind the ISA methodology. It has been obtained a slight increase in the Damage Exceedance Frequency (DEF) caused by the power up-rate. This result shows that ISA methodology allows quantifying the safety margin change when design modifications are performed in a NPP and is specially suitable for scenarios where stochastic events or human responses have an important role to prevent or mitigate the accidental consequences and the total risk. The results do not have any validity out of showing the viability of the methodology ISA. Zion NPP was retired and information of its safety analysis is scarce, so assumptions without verification or approximations based on generic studies have been required. Three phases are established in the analysis process: first, obtaining the reference dynamic event tree; second, uncertainty analysis and obtaining the damage domains; third, risk quantification. There have been shown various applications of the methodology and advantages over the classical PSA. It has also contributed to the development of the prototype tool for the implementation of the ISA methodology (SCAIS).

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Partnering with families, school personnel, and community resources is an important step to supporting the child and family, especially when children might suffer from debilitating anxiety concerns. However, little research examines the impact of anxiety on math performance for young children participating in school-based interventions enhanced by family components. The following research questions were addressed in the study: 1a) Will a young child with elevated levels of anxiety show a decrease in anxiety symptoms with a Cognitive Behavioral framework intervention program for children? 1b) Will anxiety be reduced with the addition of a Conjoint Behavioral Consultation with the family and teacher? 2a) Will a young child show an increase in math performance after participation in a Cognitive Behavioral framework intervention program for children? 2b) Will math performance be increased with the addition of a Conjoint Behavioral Consultation with the family and teacher? A single-subject staggered baseline across situations intervention study addressed whether the Coping Cat, an evidenced-based child-focused intervention now widely used in schools and clinics to treat childhood anxiety, combined with family and school consultation will decrease elevated anxiety levels and improve math performance in an elementary-aged student. The objective was to support mental health development and math performance with an eight-year-old, female elementary student through a collaborative effort of stakeholders in the student's life. Baseline data was collected with repeated measures of anxiety and math performance, and was compared to two intervention phases: first, a child-focused intervention and second, a family and school consultation. The study tested the theory that the Cognitive Behavioral intervention and Conjoint Behavioral Consultation intervention will influence, positively, the anxiety levels and math performance for an elementary-aged student. Results indicate that the child participant with elevated levels of anxiety showed a reduction in symptoms with the introduction of a Cognitive Behavioral framework intervention when compared to her baseline data. The participant showed further reduction in symptoms across the school and home settings with the implementation of Conjoint Behavioral Consultation when compared to baseline and the first intervention phase. Math performance began to increase with the introduction of the Cognitive Behavioral intervention, and continued to improve with the implementation of the Conjoint Behavioral Consultation. Findings suggest that consultation should begin immediately when an intervention is implemented in order to enhance outcomes.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

The methodology “b-learning” is a new teaching scenario and it requires the creation, adaptation and application of new learning tools searching the assimilation of new collaborative competences. In this context, it is well known the knowledge spirals, the situational leadership and the informal learning. The knowledge spirals is a basic concept of the knowledge procedure and they are based on that the knowledge increases when a cycle of 4 phases is repeated successively.1) The knowledge is created (for instance, to have an idea); 2) The knowledge is decoded into a format to be easily transmitted; 3) The knowledge is modified to be easily comprehensive and it is used; 4) New knowledge is created. This new knowledge improves the previous one (step 1). Each cycle shows a step of a spiral staircase: by going up the staircase, more knowledge is created. On the other hand, the situational leadership is based on that each person has a maturity degree to develop a specific task and this maturity increases with the experience. Therefore, the teacher (leader) has to adapt the teaching style to the student (subordinate) requirements and in this way, the professional and personal development of the student will increase quickly by improving the results and satisfaction. This educational strategy, finally combined with the informal learning, and in particular the zone of proximal development, and using a learning content management system own in our University, gets a successful and well-evaluated learning activity in Master subjects focused on the collaborative activity of preparation and oral exhibition of short and specific topics affine to these subjects. Therefore, the teacher has a relevant and consultant role of the selected topic and his function is to guide and supervise the work, incorporating many times the previous works done in other courses, as a research tutor or more experienced student. Then, in this work, we show the academic results, grade of interactivity developed in these collaborative tasks, statistics and the satisfaction grade shown by our post-graduate students.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Se presentan tres experiencias de innovación docente realizadas en la asignatura de Iniciación a las Habilidades Profesionales, primer curso del Grado en Trabajo Social, Universidad de Alicante. Objetivos: 1) Implicar en la docencia a las personas usuarias de los servicios, considerándolos expertos por su experiencia personal con Trabajadores Sociales y con la sociedad en general. 2) Proporcionar un contexto de aprendizaje que permita conocer, comprender y aprender a comunicarse profesionalmente con personas usuarias de servicios. Metodología: Aprendizaje significativo basado en la interacción con personas usuarias de los servicios con tres modalidades: a) Diseño conjunto de actividades de enseñanza-aprendizaje entre una entidad social y el profesorado de la asignatura Iniciación a las Habilidades Profesionales del Grado en Trabajo Social de la Universidad de Alicante; b) Diseño con enfoque multidisciplinar (profesorado de Trabajo Social con el profesorado de Ciencias de la Actividad Física y Deporte) y la entidad social; c) Diseño internacional con participación de las universidades Queen’s University, Belfast (Northern Ireland) (coordinadora del proyecto) junto con las universidades de Ljubljana (Slovenia) y Alicante. Los resultados proporcionan evidencias sobre la pertinencia de la colaboración docente de personas expertas por su experiencia y de la utilización de una metodología docente basada en el aprendizaje significativo para la adquisición de competencias.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Este trabajo profundiza en el potencial de la participación ciudadana como herramienta para el diagnóstico y planificación turística, así como fuente de conocimiento para el científico social. Se expone la metodología y principales resultados de un proceso participativo en un municipio turístico-residencial dirigido al diseño colaborado de propuestas de actuación a escala local. Este proceso ofreció un espacio para la reflexión ciudadana sobre las implicaciones del modelo turístico-urbanístico y sus posibilidades de futuro, y proporcionó un mecanismo para el acercamiento de las necesidades y opiniones ciudadanas a los procesos de planificación y toma de decisiones municipales. Además, a partir de un análisis de contenido de los documentos elaborados por los participantes, se demuestra la utilidad de la participación ciudadana como recurso de alta riqueza informativa para la investigación social en el ámbito del turismo.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

The UK construction industry comprises a very high proportion of SMEs that is companies employing up to 250. A Department for Business, Innovation and Skills research paper, found that SMEs had a 71.2% share of work in the construction industry. Micro and small firms (i.e. those employing up to 50) had a share of 46.7% of work (Ive and Murray 2013). The Government has high ambitions for UK construction. Having been found by successive government commissioned studies to be inefficient and highly fragmented, ambitious targets have been set for the industry to achieve 33% reduction in costs and 50% faster delivery by 2025. As a significant construction client, the Government has mandated the use of Level 2 BIM from 2016 on publicly funded projects over £5 million. The adoption of BIM plays a key role in the 2025 vision but a lack of clarity persists in the industry over BIM and significant barriers are perceived to its implementation, particularly amongst SMEs. However, industry wide transformation will be challenging without serious consideration of the capabilities of this large majority. Many larger firms, having implemented Level 2 BIM are now working towards Level 3 BIM while many of the smaller firms in the industry have not even heard of BIM. It would seem that fears of a ‘two tier’ industry are perhaps being realised. This paper builds on an earlier one (Mellon & Kouider 2014) and investigates, through field work, the level of Level 2 BIM implementation amongst SMEs compared to a large organisation. Challenges and innovative solutions identified through collected data are fully discussed and compared. It is suggested that where the SME perceives barriers towards adoption of the technologies which underpin BIM, they may consider collaborative methods of working as an interim step in order to work towards realising the efficiencies and benefits that these methods can yield. While the barriers to adoption of BIM are significant, it is suggested that they are not insurmountable for the SME and some recommendations for possible solutions are made.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Oedipus, Antigone and Electra are translated by Robert Whitelaw, Medea and Hippolytus by Arthur S. Way. The name of the translator of Prometheus bound is not given.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Shipping list no.: 2005-0086-P.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Etiologic data on Ewing's sarcoma family of tumors (ESFT) are limited, with only 5 case-control studies reported. Interesting associations, particularly related to parental occupation, have been noted, but results are somewhat inconsistent. We conducted a pooled analysis of 3 case-control studies to assess the overall associations between parental occupation and ESFT. The pooled analysis provided data on parental occupational exposure on 199 cases of ESFT and 1,451 controls. The pooled odds ratio for the periconception and gestation periods were 2.3 (95% CI = 1.3-4.1) for children whose fathers had worked on farms and 3.9 (95% CI 1.6-9.9) for those whose mothers had farmed. For the periconception and gestation periods, there was a 3.5-fold increased risk for those with both parents having farmed and a doubling of risk for those with at least one parent having farmed; pattern of increasing risk with increasing number of years of postnatal parental exposure to farms was seen. No other occupational group (or more narrowly defined occupations) had other than minor inconsistent associations with the occurrence of ESFT. In addition, we conducted a meta-analysis of farm occupation (a main risk factor) including all 4 case-control studies that collected required information to consider parental occupation. Results of the meta-analysis were consistent with those from the pooled analysis. This collaborative analysis of available individual data on parental occupation and ESFT in the offspring provides evidence supporting the hypothesis of an association between ESFT and parental occupation in farming. © 2005 Wiley-Liss, Inc.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

In this conversation, Kevin K. Kumashiro shares his reflections on challenges to publishing anti-oppressive research in educational journals. He then invites eight current and former editors of leading educational research journals - William F. Pinar, Elizabeth Graue, Carl A. Grant, Maenette K. P. Benham, Ronald H. Heck, James Joseph Scheurich, Allan Luke, and Carmen Luke - to critique and expand on his analysis. Kumashiro begins the conversation by describing his own experiences submitting manuscripts to educational research journals and receiving comments by anonymous reviewers and journal editors. He suggests three ways to rethink the collaborative potential of the peer-review process: as constructive, as multilensed, and as situated. The eight current and former editors of leading educational research journals then critique and expand Kumashiro's analysis. Kumashiro concludes the conversation with additional reflections on barriers and contradictions involved in advancing anti-oppressive educational research in educational journals. Copyright © by the President and Fellows of Harvard College.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

This special issue covers the significant activities and outputs of the European Commission funded Bioenergy Network of Excellence that has recently completed its six year programme of work. Networks of Excellence (NoE) were intended to address fragmentation of R&D in the European Research Area by integrating resources and expertise needed to enhance Europe’s global competitiveness in key areas. The Bioenergy NoE consortium consists of eight key bioenergy R&D institutes in Europe and covered the entire field of bioenergy. Within the project, the overall strategy to achieve integration followed a well defined process of firstly identifying barriers, then evaluating RTD goals for their removal, followed by a detailed examination of how integration could be realistically achieved and implemented in the longer term. This is described in the first paper by Sipilä and Wilén. The rest of the contents of this special issue are devoted to collaborative outputs of the various joint research activities undertaken during the project that cover biomass, conversion technology, and finally policy and education. Progress was influenced by a number of additional EU instruments launched during the project including the European Industrial Technology Platforms and ERA-NET Bioenergy. These led to the EIBI (European Industrial Bioenergy Initiative) and particularly EERA Bioenergy (European Energy Research Alliance – Bioenergy), which is very effectively continuing the work of Bioenergy NoE by establishing a framework for continued cooperation and collaboration. The project resulted in a high level of interaction and collaboration in European R&D which is being further developed and expanded within EERA Bioenergy. The value of Bioenergy NoE can thus be clearly seen in the exciting programme of research activities being developed in EERA Bioenergy. During the past six years Bioenergy NoE partners have produced over 1000 publications including reports, papers and poster communications. This special issue of Biomass and Bioenergy includes results from a selection of outputs from Bioenergy NoE.