ABSTRACT Organisations are currently implementing health management actions through physical activity, impacting physical, psychological and social benefits for employees and economic benefits for companies. This fact makes organizations have healthy employees that are related to positive organizational variables, such as job satisfaction, so the objective of the work is to know the relationship between the practice of physical activity and healthy employees. Participants were employees of a sports-social entity in the province of Seville with n = 56, of whom 29 were men and 27 women, and the International Physical Activity Questionnaire (IPAQ) and the Healthy Employees Questionnaire were also used. analyzing if there were significant differences between the variables of the healthy employee and the amount of physical activity practice of the employees. The results conclude that the employees who carry out moderate and high physical activity present a significantly higher average in positive emotions, commitment and resistance compared to the group of low physical activity or who do not practice physical activity, while employees who carry out moderate physical activity and high have a higher average, but not significant in self-efficacy and competence with respect to the group of low physical activity or that does not practice physical activity.

RESUMO Atualmente, as organizações estão implementando ações de gestão em saúde por meio de atividade física, impactando benefícios físicos, psicológicos e sociais para os funcionários e benefícios econômicos para as empresas. Esse fato faz com que as organizações tenham funcionários saudáveis relacionados a variáveis organizacionais positivas, como satisfação no trabalho, de modo que o objetivo do trabalho é conhecer a relação entre a prática de atividade física e funcionários saudáveis. Os participantes eram funcionários de uma entidade social-esportiva da província de Sevilha com n = 56, dos quais 29 eram homens e 27 mulheres, e também foram utilizados o Questionário Internacional de Atividade Física (IPAQ) e o Questionário de Funcionários Saudáveis. analisando se havia diferenças significativas entre as variáveis do empregado saudável e a quantidade de prática de atividade física dos empregados. Os resultados concluem que os empregados que realizam atividade física moderada e alta apresentam uma média significativamente maior de emoções positivas, comprometimento e resistência em comparação ao grupo de baixa atividade física ou que não praticam atividade física, enquanto empregados que realizam atividade física moderada e alta têm uma média mais alta, mas não significativa em autoeficácia e competência em relação ao grupo de baixa atividade física ou que não pratica atividade física.

RESUMEN En la actualidad las organizaciones están implementando acciones de gestión de la salud por medio de la actividad física repercutiendo en beneficios físicos, psicológicos y sociales en los empleados y en económicos en las empresas. Este hecho hace que las organizaciones dispongan de empleados saludables que se relacionan con variables organizacionales positivas, como la satisfacción laboral, por lo que el objetivo del trabajo es conocer la relación entre la práctica de actividad física y los empleados saludables. Los participantes fueron los empleados de una entidad deportivo-social de la provincia de Sevilla con n = 56, de los cuales 29 hombres y 27 mujeres, además se utilizó el cuestionario internacional de actividad física (IPAQ) y el cuestionario del empleado saludable, analizando si existían diferencias significativas entre las variables del empleado saludable y la cantidad de práctica de actividad física de los empleados. Los resultados concluyen que los empleados que realizan actividad física moderada y alta presentan un promedio significativamente mayor en emociones positivas, engagement y resiliencia respecto al grupo de actividad física baja o no práctica de actividad física, mientras que los empleados que realizan actividad física moderada y alta presentan un promedio mayor, pero no significativo en autoeficacia y competencia respecto al grupo de actividad física baja o no práctica de actividad física.

Spanish troops deployed on international operations all over African tropical areas can be exposed to high-risk situations due to severe infectious diseases that can affect the population under their responsibility as well as to the possible use of biological weapons in current international conflicts. In this situation the Spanish Unified Defense Medical Command and, in this particular case, the Spanish Unit Medical Evacuation (UMAER) updated their NBC defense procedures since the beginning of these missions of Spanish armed forces in Africa. Initially the response capability to this biological threat was reinforced in these territories, and afterwards training was carried out for the possibility of MEDEVAC missions of patients with infectious diseases in order to receive definitive treatment on national territory. This article is a report of what happened during these missions. It is recognition of all people involved and their efforts.

Las tropas españolas destacadas en operaciones internacionales en áreas tropicales con enfermedades infecciosas emergentes pueden verse en situación de riesgo de contagio, a lo que se suma el potencial uso de armas biológicas en los actuales conflictos de guerra desigual. Este riesgo puede hacerse extensivo a toda la población bajo responsabilidad española. Esta situación hizo que la Sanidad Militar Española y, en el caso que se presenta, la Unidad Médica de Aeroevacuación (UMAER) actualizase sus procedimientos de defensa NBQ en vigor desde el inicio de las misiones de las Fuerzas Armadas en territorio africano. Se reforzó la respuesta a la amenaza biológica en dichos ambientes tropicales y se trabajó y entrenó en la posibilidad de transporte aéreo de pacientes con enfermedades infecciosas transmisibles para su tratamiento definitivo en territorio nacional. Este artículo es un informe de lo sucedido durante estas misiones. Es un reconocimiento a todas las personas involucradas y sus esfuerzos.

Since the beginning of the Spanish Military deployment in Afghanistan in the year 2002 to the present, many troops have been deployed in the Operations Theatre. It has been designed a medical-supply chain to support the contingents, whose main aim is to provide the injured people with medical assistance as efficient as it is in their home country. Once those injured people have been stabilized, an AeroMedical evacuation is needed to take them to a role 4 facility for the definitive treatment. In this Aeromedical Evacuation the treatment should be continued or even have the possibility of start a new one. The MedEvac responsibility relays on the Aeromedical Evacuation Unit (UMAER). Aeromedical evacuations preformed from Afghanistan have been reviewed in a descriptive and retrospective study using the unite archives. In this study we analyze the wounds nature, aeronautical assets that have been employed and the material and human resources used in every mission.

Desde el inicio del trabajo de nuestras Fuerzas Armadas en Afganistán en 2002, hasta la actualidad, muchos efectivos han sido desplegados en esta Zona de Operaciones. La cadena logística sanitaria diseñada para el apoyo sanitario a la Fuerza desplegada tiene una clara misión, procurar a los heridos una asistencia sanitaria tan eficaz como la que se dispone en Territorio Nacional y una vez estabilizados solicitar su evacuación médica, que continúe y adelante los cuidados en ruta para un tratamiento definitivo en nuestro País. Esta responsabilidad corresponde a la Unidad Médica de Aeroevacuación, del Ejército del Aire. En un estudio descriptivo y retrospectivo del archivo de la unidad, se analizan las evacuaciones realizadas con origen en Afganistán, en cuanto a la naturaleza de las lesiones, los medios aéreos empleados y los recursos humanos y materiales que se implican en cada misión encomendada.

This paper presents a mathematical modeling, simulation and design of a solar power system of a parabolic dish with an air-cooled Stirling engine of 2.7 kW. The model used for the solar concentrator, the cavity and the Stirling engine were successfully validated against experimental data. Based on a parametric study, the design of the components of the engine is carried out. The study shows that as system capacity increases, the overall efficiency is limited by the power required by the fan, since the design of the cooler needs greater amounts of heat removal by increasing the air flow without affecting the internal conditions of the process (mass flow of working gas and internal dimensions of the same). The system was optimized and achieves an overall efficiency of solar to electric energy conversion of 26.7%. This study shows that the use of an air-cooled Stirling engine is potentially attractive for power generation at low capacities.

Este trabajo presenta un modelado matemático, la simulación y diseño de un sistema de generación eléctrica termosolar de disco parabólico con motor Stirling de 2.7 kW enfriado directamente por aire. El modelo utilizado para el concentrador, la cavidad y el motor Stirling, fueron validados satisfactoriamente con datos experimentales. Con base en un estudio paramétrico se realizó el dimensionamiento de los componentes del motor. El estudio realizado muestra que conforme se incrementa la capacidad del sistema, la eficiencia global se ve limitada por la potencia requerida por el ventilador, dado que el diseño del enfriador necesita retirar mayores cantidades de calor aumentando el flujo de aire, sin afectar las condiciones internas del proceso (flujo másico del gas de trabajo y dimensiones internas del mismo). El sistema fue optimizado obteniendo una eficiencia global de conversión de energía solar a eléctrica de 26.7%. Este estudio muestra que el uso de un motor Stirling enfriado directamente por aire es potencialmente atractivo para la generación de energía eléctrica en bajas capacidades.

A three-phase reactor model for describing the hydrotreating reactions of bitumen-derived gas oil was developed. The model incorporates the mass-transfer resistance at the gas-liquid and liquid-solid interfaces and a kinetic rate expression based on a Langmuir-Hinshelwood-type model. We derived three correlations for determining the solubility of hydrogen (H2), hydrogen sulfide (H2S) and ammonia (NH3) in hydrocarbon mixtures and the calculation of the catalyst effectiveness factor was included. Experimental data taken from the literature were used to determine the kinetic parameters (stoichiometric coefficients, reaction orders, reaction rate and adsorption constants for hydrodesulfuration (HDS) and hydrodenitrogenation (HDN)) and to validate the model under various operating conditions. Finally, we studied the effect of operating conditions such as pressure, temperature, LHSV, H2/feed ratio and the inhibiting effect of H2S on HDS and NH3 on HDN.