Anomalía g-2 y los Modelos Mínimos para el Z'

In this work, we present a solution of the experimental anomaly in g − 2 for the Z ′ charges allowed by the anomaly equations and the constraints coming from the Yukawa Lagrangian terms. The Z ′ considered here has a minimum fermion content, i.e., our models contain only the standard model fermions, 3 right-handed neutrinos, and one exotic charged lepton. The allowed parameter space for g − 2 was obtained with a 68% confidence level. The region allowed by neutrino trident production m Z ′ /g Z ′ > 0.75~TeV was also found. A mass of 80~GeV was assumed for the exotic particle

Estudio del efecto del periodo menstrual en deportistas jóvenes y su mitigación a través de la promoción de la salud.

El ciclo menstrual es un proceso fisiológico marcado por los cambios hormonales que determinan los cambios de fases y que también afectan a diferentes aspectos del estilo de vida de las mujeres. Alguna de estas posibles alteraciones son la ingesta de alimentos, el rendimiento deportivo, los desórdenes psicológicos y la triada de la atleta femenina. El objetivo de este estudio es investigar el grado en el que estas alteraciones pueden afectar a deportistas jóvenes no profesionales y explorar posibles estrategias para paliar las consecuencias negativas; todo ello centrándose en los hábitos de vida saludable, como la nutrición, la actividad física y la salud mental. El estudio se ha llevado a cabo con adolescentes de entre 12 y 17 años que realizan baloncesto en un club riojano. Las participantes recibieron diferentes cuestionarios que recabaron información nutricional, emocional y de las sensaciones, ligada a la menstruación, y de conocimientos. Además, se les realizó sesiones informativas basadas en la salud desde el punto de vista holístico. Al mismo tiempo, se realizó una revisión bibliográfica para conocer los efectos del ciclo en la práctica deportiva. La ingesta promedio de las participantes fue inferior a lo recomendado, destacando la baja adecuación a las necesidades de los micronutrientes. Durante el comienzo del ciclo, las jugadoras sufrían alteraciones a nivel psicológico que podrían alterar la práctica deportiva y las relaciones sociales. Pese a que las sesiones eran muy limitadas, las participantes ampliaron conocimientos y reconocieron la necesidad e importancia de este tipo de intervenciones. Sin embargo, en base a los resultados obtenidos de la revisión bibliográfica, establecer los efectos físicos del ciclo sobre la práctica deportiva es muy complejo. Si bien parece que el rendimiento se reduce con la presencia del Síndrome Premenstrual, la práctica de yoga y la ingesta adecuada de nutrientes puede reducir la intensidad. No obstante, lafalta de consenso y la alta variación interindividual hace complicado establecer una estrategia única.<br /

Social interaction diagrams analysis in virtual contexts for a reinterpretation of relationships at the school

Las Tecnologías de la Información y la Comunicación (TIC) se han convertido en recursos comunicativos que permiten múltiples formas de relaciones interpersonales. En la Sociedad del Conocimiento, donde las TIC juegan un papel fundamental, las interacciones sociales no sólo afectan a los contextos presenciales, sino también a los virtuales. Diversos estudios han analizado las frecuencias de interacción virtual y su relación con las relaciones interpersonales presenciales. Sin embargo, hay una falta de información sobre la manera de los jóvenes interactúan en el contexto virtual, sus objetivos y la influencia de otros actores. Un estudio reciente analiza el papel de las TIC y las redes sociales en los hábitos de comunicación social en las relaciones sociales de estudiantes españoles de Secundaria, con especial énfasis en la influencia de los amigos y la red de contactos. ¿Interaccionamos realmente con todos estos contactos? ¿Dónde están los límites de la calidad de la interacción social de los jóvenes? Estas y otras preguntas son respondidas en este trabajo, mediante el uso de mapas de interacción social en la presencialidad y la virtualidad, a partir de las relaciones identificadas por los alumnos de Educación Secundaria. Para concluir, a partir del análisis e interpretación de estos mapas de interacción se realiza una reinterpretación de las relaciones en la escuela y las implicaciones educativas que estas pueden poner de manifiesto.The Information and Communication Technologies (ICT) have emerged as communicative resources which allow multiple ways of interpersonal relations. In the Society of Knowlegdge, where ICTs play a fundamental role, social interactions are not only subjected to present contexts but also to virtual ones. Several works have analyzed the frequencies of virtual interaction and their relation with the present interpersonal relations. However, there is a lack of information about the way young people interact in the virtual context, their objectives and the influence of other actors. A recent study analyzes the role of ICT's and social networks in the communication habits ans social relations in spanish students of Secondary School, with special emphasis on their influence of the friends and contacts network. Do we actually interact with all our contacts? Where are the limits of the social interaction quality in young people? These and other questions are answered in this work, using social interaction maps in the presence and technological spheres, using the information obtained from students of Secondary School level. This study allows re-interprete the relationships at school and their educative implications

Neuroprotective Effects of Betulinic Acid Hydroxamate in Intraventricular Hemorrhage-Induced Brain Damage in Immature Rats

Intraventricular hemorrhage (IVH) is an important cause of long-term disability in extremely preterm infants, with no current treatment. We aimed to study in an IVH model in immature rats the neuroprotective effect of betulinic acid hydroxamate (BAH), a B55α/PP2A activator that inhibits the activity of the hypoxia-inducing factor prolyl-hydroxylase type 2. IVH was induced in 1-day-old (P1) Wistar rats by the left periventricular injection of Clostridial collagenase. Then, pups received i.p. vehicle or BAH 3 mg/kg single dose. At P6, P14 and P45, brain damage (area of damage, neurobehavioral deficits, Lactate/N-acetylaspartate ratio), white matter injury (WMI: corpus callosum atrophy and myelin basic protein signal reduction) and inflammation (TLR4, NF-κB and TNFα expression), excitotoxicity (Glutamate/N-acetylspartate) and oxidative stress (protein nitrosylation) were evaluated. BAH treatment did not reduce the volume of brain damage, but it did reduce perilesional tissue damage, preventing an IVH-induced increase in Lac/NAA. BAH restored neurobehavioral performance at P45 preventing WMI. BAH prevented an IVH-induced increase in inflammation, excitotoxicity and oxidative stress. In conclusion, in immature rats, BAH reduced IVH-induced brain damage and prevented its long-term functional consequences, preserving normal myelination in a manner related to the modulation of inflammation, excitotoxicity and oxidative stress

Are circulating cytokines reliable biomarkers for amyotrophic lateral sclerosis?

Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease that has no effective treatment. The lack of any specific biomarker that can help in the diagnosis or prognosis of ALS has made the identification of biomarkers an urgent challenge. Multiple panels have shown alterations in levels of numerous cytokines in ALS, supporting the contribution of neuroinflammation to the progressive motor neuron loss. However, none of them is fully sensitive and specific enough to become a universal biomarker for ALS. This review gathers the numerous circulating cytokines that have been found dysregulated in both ALS animal models and patients. Particularly, it highlights the opposing results found in the literature to date, and points out another potential application of inflammatory cytokines as therapeutic targets

Adaptation and validation of the Spanish version of the DOS questionnaire for the detection of orthorexic nervosa behavior

Introduction Orthorexia nervosa, a term used to describe an obsession with healthy eating, has been shown to have major health implications for those affected. The aim of this study was to validate a Spanish version of the Du¨ sseldorfer Ortorexie Skala (DOS), a questionnaire for the detection of orthorexic behavior. Methods A cross-sectional study comprising a total sample of 492 Spanish participants recruited from the University of Castilla-La Mancha, Spain, and randomly divided into two groups. The following tools were applied: the DOS and the Eating Disorder Inventory (EDI-2). The factorial structures were analyzed using exploratory and confirmatory factorial analysis. Results The internal consistency of the DOS-ES was α = .841. The exploratory factor analysis has revealed the existence of a single factor with factor loadings ranging from .508 to .802. A confirmatory factor analysis was applied to the second half of the random sample in order to confirm the factor solution. Conclusion The Spanish adaptation of the DOS-ES is proven to be a reliable and valid questionnaire for evaluating the obsessive tendency towards healthy eating among university students

Granulomatosis with polyangiitis in children : report of a case with kidney-lung syndrome

ABSTRACT: Granulomatosis with polyangiitis as a cause of kidney-lung syndrome is uncommon in children. We report the case of a 13 year old patient with alveolar hemorrhage, rapidly progressive glomerulonephritis, episcleritis and anti PR3. We refer to features of the ANCA-associated vasculitis in children and to its therapeutic approach.RESUMEN: La granulomatosis con poliangitis como causa del síndrome pulmón-riñón es infrecuente en niños. Presentamos el caso de un paciente de 13 años con hemorragia alveolar, glomerulonefritis rápidamente progresiva, escleritis y anticuerpos anti-PR3 (proteinasa 3). Hacemos referencia a las características de esta vasculitis asociada a anticuerpos contra el citoplasma de los neutrófilos (ANCA) en los niños y a su enfoque terapéutico

Characterization of Anisotropic Salt Weathering through Nondestructive Techniques Mapping Using a GIS Environment

Doctrinal texts on architectural heritage conservation emphasize the importance of fully understanding the structural and material characteristics and utilizing information systems. Photogrammetry allows for the generation of detailed, geo-referenced Digital Elevation Models of architectural elements at a low cost, while GIS software enables the addition of layers of material characteristic data to these models, creating different property maps that can be combined through map algebra. This paper presents the results of the mechanical characterization of materials and salt-related decay forms of the polygonal apse of the 13th-century monastery of Santa María de Bonaval (Guadalajara, Spain), which is primarily affected by salt crystallization. Rock strength is estimated using on-site nondestructive testing (ultrasound pulse velocity and Leeb hardness). They are mapped and combined through map algebra to derive a single mechanical soundness index (MSI) to determine whether the decay of the walls could be dependent on the orientation. The presented results show that salt decay in the building is anisotropic, with the south-facing side of the apse displaying an overall lower MSI than the others. The relative overheating of the south-facing side of the apse enhances the effect of salt crystallization, thereby promoting phase transitions between epsomite and hexahydrite.This research was funded by MCIN/AEI/10.13039/501100011033, grant numbers PID2020-116896RB-C21 and PID2020-116896RBC22

Naturalization: a New Concept Developed and Carried Out in the Subject " Environmental Technology " of Degree in Industrial Engineering

Environmental Technology is a 6 credits transversal subject included in the curriculum of all the degrees in Industrial Engineering at the Higher Polytechnic School of the University of Seville. In the last 5 academic courses, the students of this matter have been working with the concept of “Naturalization”. In the different topics which are studied in this subject, they have to apply the naturalization of the systems in order to use natural resources for improving processes. The Naturalization implies improvements in energetic efficiency, development of green spaces and CO2 capture and can be applied the majority of the industrial and urban activities. Some of the most meaningful results that our students have researched are: i) Naturalization of a large pond in a business park in Jaen (Spain) performing its layout and eventually implementing it, using plants to improve water quality and stones for fix them and to give support for bacterial biofilms. The students have improved their skills not only in the increase of new knowledge but in the ability of work in groups and carry out a real project under different points of view. ii) Project of naturalization of a neighbourhood in Seville, based on the increase of green spaces, with vegetal species which are able to capture electromagnetic radiations and CO2 emissions as well. iii) Naturalization of the margins of one lagoon in a park in Seville, transforming the precast panelled walls in breakwater bed of stones planted with bank river plants in order to improve the water quality and the landscape