Passion and exercise addiction: Healthier profiles in team than in individual sports

New evidence suggests that passion is linked to exercise addiction. The objective of this work was to determine the strength of the relationship between exercise addiction, obsessive passion, and harmonious passion in team versus individual sports. Athletes (n = 190) from three team and three individual sports were examined. Results of hierarchical multiple regressions revealed that obsessive passion and harmonious passion were significant (p < .001) predictors (R2 = .39) of exercise addiction. Obsessive passion accounted for 25% and 50% of the variance in team and individual sports, respectively. Harmonious passion added little to the shared variance (3–4%). The levels of risk for exercise addiction were identical (15%) in the two groups. In team sports, harmonious passion was higher than in individual sports (p < .001). The current results suggest that profiles of passion in team sports are superior to those in individual sports, while the risk for exercise addiction is similar

Intra-organizational social capital in business organizations. A theoretical model with a focus on servant leadership as antecedent

This paper explores the antecedents of intra-organizational social capital from a comprehensive perspective that integrates leadership as the main antecedent. To be precise, we propose that intra-organizational social capital is a direct consequence of an organizational ethical and community context to which leadership in the servant dimension plays a transcendental role. Indeed, since the seminal work of Greenleaf (1977) the servant leadership concept has been widespread among business academics and professionals for the value it brings to the organization not only in ethical but also in excellence terms. Among the recent styles and theories on leadership up to date, servant leadership fits perfectly an organizational ethical context both at the organizational or group level, acting in addition as a main promoter of that context. Furthermore, servant leadership is linked to the cultivation of helpful, altruistic and servant attitudes among the employees which are useful elements in the generation of social capital inside the organization. A model then for understanding the causes of intra-organizational socialcapital with a focus on servant leadership is here elaborated from which conclusions and implications for Management will be delineated

Physical demands focused on external factors in elite football players

El fútbol es el deporte más popular en el mundo y lo practican tanto hombres, como mujeres y niños con diferentes niveles de experiencia. La práctica del fútbol depende de una multitud de factores como son la técnica, biomecánica, táctica, áreas mentales y demandas fisiológicas. La información ha sido recabada de diversos artículos científicos y revisiones relacionadas con el tema, todos ellos de actualidad y seleccionando únicamente la información que nos interesa en relación a este tema. En el presente artículo se describen los factores externos más importantes y que mayor influencia tienen en el rendimiento del deportista y que se deberían de tener en cuenta. Se muestran las demandas relacionadas con la distancia total recorrida por los jugadores durante los partidos, la intensidad y velocidad de desplazamiento, las acciones según el puesto específico que ocupa cada jugador en el terreno de juego y, por último, la superficie de contacto

Electronic structure of porphyrin-based metal– organic frameworks and their suitability for solar fuel production photocatalysis

Metal–organic frameworks (MOFs) can be exceptionally good catalytic materials thanks to the presence of active metal centres and a porous structure that is advantageous for molecular adsorption and confinement. We present here a first-principles investigation of the electronic structure of a family of MOFs based on porphyrins connected through phenyl-carboxyl ligands and AlOH species, in order to assess their suitability for the photocatalysis of fuel production reactions using sunlight. We consider structures with protonated porphyrins and those with the protons exchanged with late 3d metal cations (Fe2+, Co2+, Ni2+, Cu2+, Zn2+), a process that we find to be thermodynamically favorable from aqueous solution for all these metals. Our band structure calculations, based on an accurate screened hybrid functional, reveal that the bandgaps are in a favorable range (2.0 to 2.6 eV) for efficient adsorption of solar light. Furthermore, by approximating the vacuum level to the pore centre potential, we provide the alignment of the MOFs' band edges with the redox potentials for water splitting and carbon dioxide reduction, and show that the structures studied here have band edges positions suitable for these reactions at neutral pH.Royal Society for an International Exchange Scheme grantVia our membership of the UK's HPC Materials Chemistry Consortium, which is funded by EPSRC (EP/L000202), this work made use of the facilities of ARCHER, the UK's national high-performance computing services, which are funded by the Office of Science and Technology through EPSRC's High End Computing ProgrammeEuropean Research Council through an ERC Starting Grant (ERC2011-StG-279520-RASPA)MINECO (CTQ2013-48396-P)Andalucía Region (FQM-1851)University of Granad

Simplification in the use of macroinvertebrates in the evaluation of water quality in fluvial systems

Macroinvertebrates have been used for decades to evaluate water quality, using measures of diversity, biotic indexes and comparative analysis. The taxonomic level of family allows a general interpretation of the ecological quality of a fluvial system, and is possible to infer the quality of these systems compared to selected references sites. This paper analyzed three localities of Central-South Chile by means of grouping analysis, evaluating if there is any loss of information when using two hierarchic levels. It is shown that the family level of benthic macroinvertebrates is sufficient for environmental monitoring. The practical advantages, the integrating capacity that can be reached and its relation with environmental variables are discussed.Los macroinvertebrados han sido utilizados por décadas para evaluar la calidad de las aguas, utilizando medidas de diversidad, índices bióticos y comparativos, sugiriendo que el nivel taxonómico de familia permite una buena interpretación general de la calidad ecológica de un sistema fluvial y es posible hacer inferencias sobre la calidad de éstos sistemas respecto a condiciones de referencias seleccionadas. Este trabajo analiza independientemente tres localidades de Chile centro-sur, mediante un análisis de agrupación, evaluando si existe pérdida de información al utilizar dos niveles jerárquicos, destacando que el nivel de familias en macroinvertebrados bentónicos es suficiente para la realización de monitoreos ambientales. Se discuten las ventajas prácticas, la capacidad integradora que puede alcanzarse y su relación con las variables ambientales

Plan Integral para la prevención y extinción de grandes incendios forestales en el LIC "Quilamas" en la provincia de Salamanca

La zona, enclavada en el Sur de la Provincia de Salamanca, tiene un valor ambiental de primer orden. Tiene una gran problemática de accesibilidad por pistas forestales, lo que por otra parte es parte de su atractivo ambiental. El historial de incendios forestales es extenso, siendo de especial importancia el acaecido el día 18 de Junio de 2005, que quemó aproximadamente 1250 has. Con motivo de ese incendio se puso de manifiesto la gran vulnerabilidad del Espacio Natural de Quilamas ante los Grandes Incendios forestales, siendo necesario disponer de un instrumento de planificación que contemple los medios para afrontar el problema que suponen los grandes incendios forestales.Grado en Ingeniería Forestal y del Medio Natura

Analysis of vulnerabilities in the Phoenix inventory system in a level 1 IPS

Este artículo resume las técnicas usadas de pentesting en el sistema de inventarios Phoenix de una IPS de primer nivel, el cual es un desarrollo propio de la empresa basado en PHP y Mysql. Para esto se contemplaron 3 etapas: 1. El análisis e identificación del sistema de inventarios, se realizó utilizando una metodología de prueba de penetración, que incluyó una revisión de la documentación del sistema, entrevistas y visitas, para determinar el impacto que se pueda generar si se materializa una amenaza, está basado en la norma ISO 27001:2022, 2. Pentesting y pruebas de seguridad de la aplicación web. El estudio se llevó a cabo mediante una metodología de análisis de riesgos, que incluyó la identificación, evaluación y tratamiento de las vulnerabilidades identificadas. 3. Los resultados del estudio mostraron que el sistema presentó una serie de vulnerabilidades que podrían ser explotadas por atacantes para obtener acceso a información confidencial o causar daños al sistema, posteriormente se genera una propuesta en la que se sugieren las mejores prácticas para mitigar estos riesgos. Se concluye que se deben aplicar acciones preventivas y correctivas por medio de políticas y procedimientos que deben ser verificados constantemente por los responsables de TI y la gerencia, realizando las actualizaciones pertinentes en cada una de ellas, aplicando los conceptos del PHVA y buenas prácticas de ITIL.This article summarizes the pentesting techniques used in the Phoenix inventory system of a first-level IPS, which is a company's own development based on PHP and Mysql. For this, 3 stages were contemplated: 1. The analysis and identification of the inventory system was carried out using a penetration testing methodology, which included a review of the system documentation, interviews and visits, to determine the impact that could be generated. If a threat materializes, it is based on the ISO 27001:2022 standard, 2. Pentesting and security testing of the web application. The study was carried out using a risk analysis methodology, which included the identification, evaluation and treatment of the identified vulnerabilities. 3. The results of the study showed that the system presented a series of vulnerabilities that could be exploited by attackers to obtain access to confidential information or cause damage to the system. Subsequently, a proposal is generated in which best practices are suggested to mitigate these risks. . It is concluded that preventive and corrective actions must be applied through policies and procedures that must be constantly verified by those responsible for IT and management, making the pertinent updates in each of them, applying the concepts of the PHVA and good practices of ITIL

Implementación de un sistema informático para mejorar los procesos de gestión de incidencias en el proyecto del túnel Néstor Gambetta de la provincia constitucional del Callao - 2020

La implementación que se muestra a continuación es el análisis y diseño de una solución utilizando la Metodología RUP (Rational Unified Process), para ello se implementó un Sistema de Gestión de Incidencias en el área de operaciones del proyecto Túnel Néstor Gambetta que pueda recolectar, almacenar y gestionar la información. Desde el principio identificamos la problemática que se origina en el centro de control, se explicaron en detalle mediante la identificación de las causas obvias, donde el tiempo de respuesta desfasado ante los eventos o incidencia en la operación era sustancialmente considerable y es un indicador muy importante para plantear un sistema de gestión de incidencias automatizado. Luego de encontrar el sustento respectivo, se definieron los objetivos generales y específicos. Para dar paso al marco teórico correspondiente ayudando a entender cada concepto que se necesitaba en la implementación. En el capítulo del desarrollo de la implementación se detalla cómo aplicar las buenas prácticas de programación y los conocimientos adquiridos en la carrera sobre la metodología RUP, tomando como referencia sus 4 fases: Iniciación, elaboración, construcción y transición, adaptando los conocimientos y poder lograr el éxito del proyecto en curso. Finalmente, en el Capítulo 4,se muestran las mediciones de la implementación mediante los cuadros comparativos quedando satisfecho el cliente con la reducción de los costos y tiempo del personal, además de garantizar la fiabilidad de la información a través de reportes estadísticos.The implementation shown below is the analysis and design of a solution using the RUP Methodology (Rational Unified Process), forthis an Incident Management System was implemented in the operations area of the Néstor Gambetta Tunnel project that can collect, store and manage information.From the beginning we identified the problems that originate in the control center, they wereexplained in detail by identifying the obvious causes, where the lagged response time to events or incidence in the operation was substantially considerable and is a very important indicator to propose an automated incident management system.After finding the respective sustenance, the general and specific objectives were defined. To give way to the corresponding theoretical framework helping to understand each concept that was needed in the implementation.In the chapter on the development of the implementation, it is detailed how to apply good programming practices and the knowledge acquired in the career on the RUP methodology, taking as a reference its 4 phases: Initiation, elaboration, construction and transition, adapting the knowledge and being ableto achieve the success of the ongoing project.Finally, in Chapter 4, the implementation measurements are shown through the comparative tables, the client being satisfied with the reduction in costs and staff time, in addition to guaranteeing the reliability of the information through statistical reports.Campus Lima Centr

Planeamiento de la expansión de la transmisión considerando contingencias mediante el algoritmo multiobjetivo NSGA-II

Este trabajo propone un algoritmo multiobjetivo para solucionar el problema del planeamiento de la expansión de la transmisión considerando como objetivos los costos de inversión y la seguridad del sistema usando el criterio de contingencias N-1. Se implementa el algoritmo NSGA-II como técnica evolutiva de optimización multiobjetivo. El problema operativo es resuelto mediante un método de puntos interiores de alto orden. La metodología se valida con los sistemas de prueba IEEE de 6 y 24 nodo.This work proposes a multiobjective approach for transmission expansion planning considering security constraints (N-1 criterion) and minimum cost. Elitist NSGA-II multiobjective algorithm is used and the operative problem is solved trhough high order interior point method. The methodology is tested on 24 and 6 bus IEEE system

Could attitudes toward COVID-19 in Spain render men more vulnerable than women?

The COVID-19 pandemic affects the whole world. Spain is 5th in the world and 3rd in Europe with the largest number of diagnosed cases. Spanish citizens’ attitudes are important in controlling the pandemic. This research assessed attitudes of Spaniards toward COVID-19 in two studies. One (n = 64) was conducted in a shopping centre in Madrid and another (n = 640) online. The results of both studies suggest that women in Spain have a ‘more responsible’ attitude toward the COVID-19 than men. Young adults (18–25 years) scored lower on compliance with safety measures and perceived need to stay home than older adults. In Study 1, level of compliance, knowing someone at risk, and knowing someone infected predicted 31.2% of the variance in the perceived need to stay home. In Study 2, personal concern, level of compliance, keeping distance from others, and perceived social alarm predicted 28.5% of the variance in perceived need to stay home. Regardless of age and/or gender, Spanish people's personal concern about COVID-19 was less than their perceived social alarm about it. These results might help policy makers in considering public attitudes which could play an important role in controlling the current, and possibly a second, wave of COVID-1