High-involvement practices and performance of French firms

This article deals with the relationship between human resource practices (HRPs) and firm performances in France. It focuses on four specific HRPs that are able to involve employees: empowerment, compensation, communication and training. Each HRP taken in isolation is supposed to be positively related to performances because it is a source of motivation and commitment for employees. But there also exists a synergy between these practices: when they are combined into a bundle and are implemented all together, they should lead to better firm performances. A survey carried out among 180 human resource managers of large French companies leads to validation of most of our hypotheses. Contrary to previous research, we do not find a significant link between compensation and firm performance. The other HRPs are all indirectly related to financial performances, with social performance playing a mediating role. When they are combined into a bundle, HRPs have a stronger impact on performance than when they are studied individually. The article concludes with the importance of developing a strategic human resource policy and of implementing coherent and complementary high-involvement practices to increase firm performance

Diseño conceptual y preliminar de un compresor centrífugo para un motor turbohélice

En el siguiente documento se presenta el proceso de diseño de un compresor centrifugo de una sola etapa para un motor turbo hélice, el cual se centró en encontrar los parámetros que ayudan a incrementar la eficiencia del motor sin alterar su número de etapas. Para esto, se definieron los parámetros que rigen el funcionamiento del compresor y las condiciones de diseño del mismo, con el fin de dimensionar el impulsor y difusor a partir de las teorías relacionadas con el diseño de compresores centrífugos, tomando como base de diseño el compresor centrifugo de un motor PT6A small. Conforme a las dimensiones obtenidas y las condiciones de salida del fluido se realizó un análisis teórico del desempeño del compresor, para determinar la eficiencia y relación de compresión global, con el fin de implementarlos en el análisis termogasodinámico el cual tiene como fin determinar el rendimiento del motor con el diseño del compresor propuesto y los valores expuestos por el fabricante, dando como resultado un rendimiento similar al de fábrica con tan solo un 2% de diferencia entre estos, logrando con esto identificar las ventajas y desventajas generadas a través de la implementación de este diseño. Posteriormente se realizó un análisis de esfuerzos en el impulsor a partir de la selección del material, con el fin de conocer la deformación en el impulsor, y por último se diseñó el compresor centrífugo en 3D con la ayuda del programa Solid Edge, a partir del dimensionamiento obtenido del compresor, en el cual se incluyeron los factores de diseño en el impulsor y difusor, dado a que producen una eficiencia general del 89%, con una relación de compresión de 3, sin necesidad de que sus demás componentes sufran cambios en sus dimensiones

Behaviour and Welfare of Dairy Buffaloes: Pasture or Confinement?

This review seeks to integrate recent scientific findings on the behaviour of buffalo cows in different production systems. These issues are discussed in relation to the level of welfare that buffalo cows experience under different production systems. In extensive conditions, the level of welfare is high because the animals are free to express natural behaviours related to feeding (grazing, ruminating) and rest. In contrast, intensified livestock-raising methods and techniques (machine-milking, artificial breeding etc.), first developed for dairy cattle are increasingly being used with water buffaloes in order to increase milk production. Greater knowledge of the biology of dairy buffaloes in aspects linked to physiology, behaviour, and health, together with needed adjustments to their production systems, will indicate options for improving the levels of comfort and welfare of these animals and contribute to increasing the efficiency of this type of dairy production. It is necessary to appreciate the importance of welfare within the entire chain of animal production since each of the scientific aspects considered in this manuscript reflects that animal welfare is not an absolute term, but multidisciplinary, with direct consequences on productivity. The welfare of animals in the production systems must be considered with the aim of ensuring an adequate nutritional, clinical, sanitary and behavioural status of the animals. When these aspects are achieved, production can be maximized and, for this reason, it is essential to maintain a balance between welfare and productivity

Correlación entre conductas sobre sexting y dependencia al móvil en estudiantes de enfermería

Introduction. Sexting is defined as the sending of erotic or pornographic content through digital devices; It’s a term of daily use whose practice may bring positive effects, and on the other hand risks for sexual and mental health as shown in different studies. Regarding mobile dependency, this practice has increased in university students, who need to create, share, and download content. Both phenomena have factors in common that may signify an unexplored relationship. Objective. To determine the correlation between sexting behaviors mobile phone dependency in nursing college students. Methodology. This is an observational, cross-sectional, and correlational study, with a non-probabilistic convenience sampling method that included undergraduate nursing students at a public university in Mexico, the Pearson and Spearman correlation was used on the results of the totals and components of the instruments: behaviors on sexting and Mobile Dependency Test. Results. With 300 participants, it is reported that 64.7% declare having participated in sexting through text messages, sharing images, among other forms of participation; On the other hand, in terms of mobile phone dependency, 96.3% were in a medium and high dependency. When comparing the final summations of each instrument, a positive correlation is obtained with r.=0.166, p<0.050. Conclusion. A positive correlation between sexting and mobile phone dependency is the first indicator to explore in-depth the common factors that predispose and that can derive from both phenomena in the young population.Introducción. El sexting se define como el envío de contenido erótico o pornográfico a través de dispositivos digitales; es un término de uso cotidiano, cuya práctica puede traer efectos positivos, y por otro lado riesgos para la salud sexual y mental en quienes lo practican. En lo que respecta a la dependencia al móvil, esta práctica se ha incrementado en estudiantes universitarios, quienes tienen la necesidad de crear, compartir y descargar contenidos. Ambos fenómenos tienen factores en común que pueden significar una relación no explorada. Objetivo. Determinar la correlación entre las conductas sobre el sexting y la dependencia al móvil en estudiantes de enfermería. Metodología. Estudio observacional, transversal y correlacional, con muestreo no probabilístico a conveniencia que incluyó estudiantes del grado en enfermería en una universidad pública de México, se utilizó la correlación de Pearson y Spearman sobre los resultados de los totales y componentes de los instrumentos: conductas sobre sexting y Test de Dependencia al móvil. Resultados. Con 300 participantes, se reporta que el 64.7% declara haber participado en el sexting a través de mensajes de texto, compartir imágenes, entre otras formas de participación; por otro lado, en cuanto a la dependencia al móvil el 96.3% se encontraba en una dependencia media y alta. Al comparar las sumatorias finales de cada instrumento se obtiene una correlación positiva con r.=0.166, p<0.050. Conclusión. Una correlación positiva entre el sexting y la dependencia al móvil es un primer indicador para explorar a profundidad los factores en común que predisponen y que pueden derivar de ambos fenómenos en la población joven

La imagen y la narrativa como herramientas para el abordaje psicosocial en escenarios de violencia en los Departamentos de Antioquia, Caldas y Choco.

La problemática de la violencia que padece el país a partir del conflicto armado hace evidenciar las afectaciones tanto a nivel individual como de las comunidades en diversos aspectos tales como el familiar, social, económico y político por los que se presentan grandes en las víctimas en relación con su salud mental, por lo tanto, se hace necesario el planteamiento de una adecuada intervención psicosocial siendo definida la intervención psicosocial según Bueno, J. (2005) como las acciones realizadas desde el área de la psicología desde comprensión de las situaciones problemáticas y las necesidades que poseemos los seres humanos, así como sus derechos, capacidades y potencialidades que permita el restablecimientos y empoderamiento de las comunidades afectadas en este punto por el conflicto armado. A partir de los relatos planteados desde violencia y esperanza, en donde encontramos los casos de Carlos Arturo, Camilo, Ana Ligia, Alfredo Campo y Modesto Pacaya, así como el caso presentado de Peñas Coloradas donde se logran identificar los emergentes psicosociales y los impactos generados desde la individualidad como lo comunitario y la capacidad de resiliencia que tienen como víctimas. A partir de lo propuesto por White, M. (2003) donde manifiesta la importancia que tiene la narrativa para trabajar con las personas que han sido afectadas por el conflicto armado los traumas que ha ocasionado la guerra ayudándolos a encontrar nuevamente su identidad, se hace necesario plantear preguntas estratégicas, circulares, y reflexivas con la finalidad de re construir su historia ayudándolos a reencontrarse nuevamente con ellos mismos identificando sus virtudes y fortalezas tanto a nivel comunitario como individual. Se realiza también una propuesta desde el campo psicosocial en el caso Peñas coloradas a partir de acciones de apoyo basadas en lo aprendido en el diplomado y en los conocimientos que se han ido adquiriendo a través de la carrera de psicología, y por último se proponen tres estrategias que permitan la resiliencia y el empoderamiento de la comunidad de Peñas Coloradas. En la intervención psicosocial según Montero, M. (2003) las estrategias deben ir orientadas al bienestar en común, a partir de estas estrategias se pretende potencializar los recursos con los cuales cuenta la comunidad, tanto físicos como intelectuales generando un impacto positivo en las personas de esta comunidad.The problem of the violence that the country suffers from the armed conflict makes evident the effects both at the individual level and at the community level in various aspects such as the family, social, economic and political for which they appear great in the victims in relation to with their mental health, therefore, it is necessary to propose an adequate psychosocial intervention, psychosocial intervention being defined according to Bueno, J. (2005) as the actions carried out from the area of psychology from the understanding of the problems and needs that human beings possess, as well as their rights, capacities and potentialities that allow the reestablishment and empowerment of the communities affected at this point by the armed conflict. From the stories raised from violence and hope, where we find the cases of Modesto Pacaya, Camilo, Alfredo Campo, Ana Ligia and Carlos Arturo, as well as the case presented by Peñas Coloradas where the emerging psychosocial and the impacts generated are identified. from the individuality as well as the community and the resilience capacity they have as victims. From what was proposed by White, M. (2003) where he expresses the importance of the narrative to work with people who have been affected by the armed conflict, the traumas that the war has caused, helping them to find their identity again, it is done It is necessary to pose strategic, circular, and reflective questions in order to rebuild their history, helping them to rediscover themselves again, identifying their virtues and strengths both at a community and individual level. A proposal is also made from the psychosocial field in the Peñas coloradas case based on support actions based on what was learned in the diploma course and on the knowledge that has been acquired through the psychology degree, and finally three strategies that allow the resilience and empowerment of the community of Peñas Coloradas. In the psychosocial intervention according to Montero, M. (2003) the strategies must be oriented to the well-being in common, from these strategies it is intended to potentiate the resources with which the community has, both physical and intellectual, generating a positive impact on people of this community

Severe Asthma Standard-of-Care Background Medication Reduction With Benralizumab: ANDHI in Practice Substudy

Background: The phase IIIb, randomized, parallel-group, placebo-controlled ANDHI double-blind (DB) study extended understanding of the efficacy of benralizumab for patients with severe eosinophilic asthma. Patients from ANDHI DB could join the 56-week ANDHI in Practice (IP) single-arm, open-label extension substudy. Objective: Assess potential for standard-of-care background medication reductions while maintaining asthma control with benralizumab. Methods: Following ANDHI DB completion, eligible adults were enrolled in ANDHI IP. After an 8-week run-in with benralizumab, there were 5 visits to potentially reduce background asthma medications for patients achieving and maintaining protocol-defined asthma control with benralizumab. Main outcome measures for non-oral corticosteroid (OCS)-dependent patients were the proportions with at least 1 background medication reduction (ie, lower inhaled corticosteroid dose, background medication discontinuation) and the number of adapted Global Initiative for Asthma (GINA) step reductions at end of treatment (EOT). Main outcomes for OCS-dependent patients were reductions in daily OCS dosage and proportion achieving OCS dosage of 5 mg or lower at EOT. Results: For non-OCS-dependent patients, 53.3% (n = 208 of 390) achieved at least 1 background medication reduction, increasing to 72.6% (n = 130 of 179) for patients who maintained protocol-defined asthma control at EOT. A total of 41.9% (n = 163 of 389) achieved at least 1 adapted GINA step reduction, increasing to 61.8% (n = 110 of 178) for patients with protocol-defined EOT asthma control. At ANDHI IP baseline, OCS dosages were 5 mg or lower for 40.4% (n = 40 of 99) of OCS-dependent patients. Of OCS-dependent patients, 50.5% (n = 50 of 99) eliminated OCS and 74.7% (n = 74 of 99) achieved dosages of 5 mg or lower at EOT. Conclusions: These findings demonstrate benralizumab's ability to improve asthma control, thereby allowing background medication reduction

The James Webb Space Telescope Mission

Twenty-six years ago a small committee report, building on earlier studies, expounded a compelling and poetic vision for the future of astronomy, calling for an infrared-optimized space telescope with an aperture of at least $4m$. With the support of their governments in the US, Europe, and Canada, 20,000 people realized that vision as the $6.5m$ James Webb Space Telescope. A generation of astronomers will celebrate their accomplishments for the life of the mission, potentially as long as 20 years, and beyond. This report and the scientific discoveries that follow are extended thank-you notes to the 20,000 team members. The telescope is working perfectly, with much better image quality than expected. In this and accompanying papers, we give a brief history, describe the observatory, outline its objectives and current observing program, and discuss the inventions and people who made it possible. We cite detailed reports on the design and the measured performance on orbit.Comment: Accepted by PASP for the special issue on The James Webb Space Telescope Overview, 29 pages, 4 figure

Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at √s = 13 TeV

Abstract The parton-level top quark (t) forward-backward asymmetry and the anomalous chromoelectric (d̂ t) and chromomagnetic (μ̂ t) moments have been measured using LHC pp collisions at a center-of-mass energy of 13 TeV, collected in the CMS detector in a data sample corresponding to an integrated luminosity of 35.9 fb−1. The linearized variable AFB(1) is used to approximate the asymmetry. Candidate t t ¯ events decaying to a muon or electron and jets in final states with low and high Lorentz boosts are selected and reconstructed using a fit of the kinematic distributions of the decay products to those expected for t t ¯ final states. The values found for the parameters are AFB(1)=0.048−0.087+0.095(stat)−0.029+0.020(syst),μ̂t=−0.024−0.009+0.013(stat)−0.011+0.016(syst), and a limit is placed on the magnitude of | d̂ t| < 0.03 at 95% confidence level. [Figure not available: see fulltext.