Desarrollo de una plataforma multiusuario en tiempo real

Este proyecto nace de la necesidad de crear un servidor que soporte aplicaciones en tiempo real multiusuario. Dado que en el mercado actual existen diversas soluciones a esta necesidad, en una primera parte del proyecto estudiamos dichas soluciones y marcamos unos objetivos concretos. El siguiente paso es estudiar las tecnologías que usamos en el desarrollo de la aplicación, así como los propios programas de desarrollo. Posteriormente diseñamos un protocolo de comunicaciones que establezca las pautas para el intercambio de información. Seguidamente pasamos a diseñar e implementar el propio servidor de aplicaciones. De la creación de este servidor se deriva la necesidad de crear dos aplicaciones cliente que pretenden ser una guía que permita a futuros programadores desarrollar nuevas aplicaciones cliente así como configurar exitosamente el servidor. El siguiente paso es analizar el rendimiento y la capacidad de carga del servidor, comprobando que cumple con las expectativas fijadas. Por último, documentamos el proyecto en forma de esta memoria. El conjunto formado por el servidor, el protocolo de comunicaciones y las dos aplicaciones cliente conforman toda una plataforma robusta y escalable

Notes on Dependent Attributes in TOPSIS

AbstractTOPSIS is a multicriteria decision making technique based on the minimization of geometric distances that allows the ordering of compared alternatives in accordance with their distances from the ideal and anti-ideal solutions. The technique, that usually measures distances in the Euclidean norm, implicitly supposes that the contemplated attributes are independent. However, as this rarely occurs in practice, it is necessary to adapt the technique to the new situation. Using the Mahalanobis distance to incorporate the correlations among the attributes, this paper proposes a TOPSIS extension that captures the dependencies among them, but, in contrast to the Euclidean distance, does not require the normalization of the data. Results obtained by the new proposal have been compared by means of the three Minkowski norms most commonly employed for the calculation of distance: (i) the Manhattan distance (p=1); (ii) the Euclidean distance (p=2); and (iii) the Tchebycheff distance (p=∞). Furthermore, simulation techniques are used to analyse the connection between the TOPSIS results traditionally obtained with the Euclidean distance and those obtained with the Mahalanobis distance

A new synthesis procedure for TOPSIS based on AHP

Vega et al. [1] analyzed the influence of the attributes’ dependence when ranking a set of alternatives in a multicriteria decision making problem with TOPSIS. They also proposed the use of the Mahalanobis distance to incorporate the correlations among the attributes in TOPSIS. Even in those situations for which dependence among attributes is very slight, the results obtained for the Mahalanobis distance are significantly different from those obtained with the Euclidean distance, traditionally used in TOPSIS, and also from results obtained using any other distance of the Minkowsky family. This raises serious doubts regarding the selection of the distance that should be employed in each case. To deal with the problem of the attributes’ dependence and the question of the selection of the most appropriate distance measure, this paper proposes to use a new method for synthesizing the distances to the ideal and the anti-ideal in TOPSIS. The new procedure is based on the Analytic Hierarchy Process and is able to capture the relative importance of both distances in the context given by the measure that is considered; it also provides rankings, which are closer to the distances employed in TOPSIS, regardless of the dependence among the attributes. The new technique has been applied to the illustrative example employed in Vega et al. [1]

Sirena: Autonomous integrated system for naval recognition and exploration

Peer Reviewe

A new synthesis procedure for TOPSIS based on AHP

Vega et al. [1] analyzed the influence of the attributes’ dependence when ranking a set of alternatives in a multicriteria decision making problem with TOPSIS. They also proposed the use of the Mahalanobis distance to incorporate the correlations among the attributes in TOPSIS. Even in those situations for which dependence among attributes is very slight, the results obtained for the Mahalanobis distance are significantly different from those obtained with the Euclidean distance, traditionally used in TOPSIS, and also from results obtained using any other distance of the Minkowsky family. This raises serious doubts regarding the selection of the distance that should be employed in each case. To deal with the problem of the attributes’ dependence and the question of the selection of the most appropriate distance measure, this paper proposes to use a new method for synthesizing the distances to the ideal and the anti-ideal in TOPSIS. The new procedure is based on the Analytic Hierarchy Process and is able to capture the relative importance of both distances in the context given by the measure that is considered; it also provides rankings, which are closer to the distances employed in TOPSIS, regardless of the dependence among the attributes. The new technique has been applied to the illustrative example employed in Vega et al. [1]

Anti-Doping Knowledge of Students Undertaking Bachelor’s Degrees in Sports Sciences in Spain

In Spain, students pursuing a career in athletic training, physical education, or scientific evaluation of sports enroll in a bachelor’s degree in sports sciences. This degree provides knowledge and skills in a broad array of sports settings and promotes research-based interdisciplinary knowledge. However, the student’s syllabus rarely includes specific academic training on anti-doping regulations or doping prevention. The purpose of this study was to assess the anti-doping knowledge of the students undertaking a bachelor’s degree in sports sciences in Spanish universities. One thousand two hundred and thirty-three bachelor students in sport science (907 males, 322 females, and 4 participants with non-binary sex) from 26 Spanish universities completed a validated questionnaire about general anti-doping knowledge. The questionnaire is an adapted version of the Play True Quiz of the World Anti-Doping Agency and contains 37 multiple-choice questions. The score obtained in the questionnaire was transformed into a 0–100-point scale. The questionnaire was distributed among students within each university by a faculty member and it was filled out online. Students obtained a score of 65.8 ± 10.10 points (range = 32–92 points). There was an effect of the course in the score obtained (p < 0.001). Students of the first course (63.6 ± 9.5 points) had lower scores than the remaining courses (p < 0.037) while the students of the fourth course obtained the highest scores (68.7 ± 9.5 points; p < 0.019). The students with an itinerary on sports performance were the respondents with the highest anti-doping knowledge (67.2 ± 10.2) points, followed by the students with an itinerary on health (66.7 ± 9.5 points). The knowledge of basic anti-doping rules and doping prevention strategies of the bachelor students in sports sciences in Spain was suboptimal. Increasing doping prevention information in the syllabus of the bachelor’s degree in sports sciences is essential as these future professionals will directly work with populations at risk of dopin

Achieving greater sportsmanship and decreasing school violence through responsibility and sport practice

This study aims to determine the prediction levels of personal and social responsibility in sportsmanship and violence, and the levels of violence, sportsmanship and responsibility in schools after the application of the Personal and Social Responsibility Model in physical education classes. Two studies have been conducted. The first, made up of a sample of 737 adolescent students aged between 12 and 15 (M = 14.03; SD = 2.14), which measured personal and social responsibility, sportsmanship and school violence. In Study two, the same dimensions were measured in 573 adolescent students aged between 12 and 15 (M = 13.73; SD = 1.83), in two phases (pre and post-test). The structural equation analysis revealed that personal and social responsibility perception predicts sportsmanship positively and violent attitudes negatively. The application of the Responsibility Model in this study produced improvements in personal responsibility, social responsibility, commitment toward sport participation, social conventions in sport.Este estudio tuvo como objetivo determinar los niveles de predicción de la responsabilidad personal y social en la deportividad y la violencia, y los niveles de violencia, deportividad y responsabilidad tras la aplicación del Modelo de Responsabilidad Personal y Social en las clases de educación física. Se llevaron a cabo dos estudios. El primero, compuesto por una muestra de 737 estudiantes adolescentes de entre 12 y 15 años (M = 14,03; DT = 2,14), que midió la responsabilidad personal y social, el espíritu deportivo y la violencia escolar. En el segundo estudio, se midieron las mismas dimensiones en 573 estudiantes adolescentes de entre 12 y 15 años (M = 13,73; DT = 1,83), en dos fases (pre y post test). El análisis de regresión estructural reveló que la percepción de la responsabilidad personal y social predice la deportividad positivamente y las actitudes violentas negativamente. La aplicación del Modelo de Responsabilidad en este estudio produjo mejoras en la responsabilidad personal, la responsabilidad social, el compromiso con la participación deportiva y las convenciones sociales en el deporte.O objetivo deste estudo foi determinar os níveis de predição de responsabilidade pessoal e social no desportivismo e na violência, e os níveis de violência, desportivismo e responsabilidade após a aplicação do Modelo de Responsabilidade Pessoal e Social nas aulas de educação física. Foram realizados dois estudos. A primeira, composta por uma amostra de 737 adolescentes entre 12 e 15 anos (M = 14,03; TD = 2,14), mediu responsabilidade pessoal e social, esportividade e violência escolar. No segundo estudo, as mesmas dimensões foram medidas em 573 adolescentes entre 12 e 15 anos de idade (M = 13,73; TD = 1,83), em duas fases (pré e pós-teste). A análise de regressão estrutural revelou que a percepção de responsabilidade pessoal e social prediz positivamente o desportivismo e negativamente atitudes violentas. A aplicação do Modelo de Responsabilidade neste estudo produziu melhorias na responsabilidade pessoal, responsabilidade social, compromisso com a participação esportiva e convenções sociais no esporte

Mapping of social initiatives as a model of local development against depopulation in rural areas. The Valle del Genal case (Andalusia, Spain)

The cultural heritage of many rural areas, such as the villages of Valle del Genal in Andalusia, is endangered. Factors such as the depopulation suffered in the last 25 years have prevented the knowledge transfer from the elderly to the young. This paper focuses on mapping the social, economic and habitat resources as a preliminary step to the implementation of measures and policies against the abandonment of these areas. The aim is to create a map regarding the cultural identity and idiosyncrasy of each village in the valley. The mapping of these local entities is carried out through a combination of participatory work with the communities in the area and the data tracking from geo-positioning and social networks applications. During the identification and inventory process, the relationship between different citizen initiatives and social groups are analysed. This cartography pretends to offer a base of accessible knowledge for inhabitants and visitors.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Research on Devices for Handling Whole Slide Images on Pathology Workstations. An Ergonomic Outlook

Background Digital Pathology represents a technological innovation that introduces changes in the traditional tasks of pathologists. In this regard, an important issue that has not been enough emphasized is the image handling from an ergonomic point of view to avoid work-related musculoskeletal disorders (MSD). The aim of this study was to investigate a proper input device for digital pathology. Material & Methods Research was conducted in two phases: (1). A comparative study to find out an optimal external controller. Eight medical students analyzed 11 input devices: keyboard (Hewlett Packard, HP), conventional mouse (HP), vertical mouse (CLS), touchpad (Logitech), 3 trackballs (Logitech, Kensington Expert and Ulove), Rollermouse (Contour), Ergopointer (Märzhäuser Sensotech), gamepad (Logitech) and a touchless device (Leap Motion Controller), using them with the Image Viewer software (Ventana). The web-based Fitts´ law test (UC Berkeley) was used to objectify the accuracy of each used device, randomly. 12 items were included in the questionnaire: comfort, technical aspects (cursor movement and objective achievement), prospects, overall satisfaction, prior experience, and others. (2). Evaluation by two experienced pathologists of the best rated input device on the previous experiment and its comparison with a voice recognition system (Invox Medical Dictation, Vocali) using a headset microphone (Plantronics). Perceived workload was scored using the NASA Task Load Index on 28 whole slide images visualized on the Digital Image Hub (Leica) platform with a 4 MegaPixel display (Barco). Data were processed with SPSS 21.0. Results Correlation between technical aspects of the evaluated devices and accuracy (Fitts´ law test), and comfort with overall satisfaction, was demonstrated (p<0.05). Comparative analysis of the 11 input devices concluded that vertical mouse was the best rated input device. However, on the second phase of the study, we find a slightly higher perceived workload using this device than using the voice recognition system, which was the best controller in digital pathology from an ergonomic point of view in this study. Conclusions We describe a methodology that can study and compare input devices for future workstations in digital pathology. Pathologists should be involved in this process trying to find ergonomic devices that prevent MSD. Voice recognition can function as a good handsfree device for digital pathology and could be considered in physical disability situations. Further studies using electromyography, accelerometry and 3D reconstruction analysis could provide additional ergonomic information

Coordinación de asignaturas de Física en titulaciones de Grado y Master para Ingenierías y Arquitectura

En este trabajo de investigación docente realizamos una puesta en común y recopilación de materiales docentes relacionados con asignaturas de Física de titulaciones de Master y Grado orientadas a la ingeniería y la arquitectura impartidas en la Escuela Politécnica Superior de la Universidad de Alicante. Para ello se fomenta la comunicación e intercambio de experiencias entre los docentes de nuestro departamento que imparten estas asignaturas con la finalidad de optimizar los recursos humanos, técnicos y económicos disponibles. Todo el material recopilado se revisa previamente por cada docente y se publica en servidores conectados a una red interna del departamento lo que permite el acceso de todo el personal docente relacionado con estas asignaturas a dichos recursos docentes fomentando la colaboración, mejora y enriquecimiento profesional entre los miembros involucrados de nuestro departamento. De esta forma se mejora la calidad de las asignaturas sobre las que se realiza este trabajo repercutiendo positivamente entre el alumnado.Los autores desean agradecer el soporte y financiación de la Universidad de Alicante vía los proyectos GITE-09006-UA, GITE-09014-UA, y al ICE de la Universidad de Alicante a través de la convocatoria de Proyectos de Redes 2012-2013 y su soporte a la red 2875