Mujeres o deporte, ¿aceptamos los nuevos cuerpos femeninos y sus identidades de género?

La estereotipia de género ha sido una característica integral del desarrollo del deporte en general y del Olímpico en particular. Análisis efectuados por feministas del deporte (Birrel, 2000; Hall 1996; Hargreaves, 1994; Theberge 2000; en Martín 2006;) plantean que la identidad de género que se detecta en deportes poco aceptados para las mujeres posee una doble influencia sobre la situación de estas en las practicas deportivas. Por un lado, son actividades deportivas donde las mujeres negocian una nueva identidad de género, donde se llega a percibir una nueva forma de entender el cuerpo femenino y la feminidad de estas. Estos es, gracias a la iniciativa y persistencia de algunas mujeres que quisieron romper barreras de género, hoy en día existen formas diferentes de percibir los cuerpos de las mujeres deportistas. Este estudio recoge una revisión y amplia exposición de cómo toda esta “aceptación” de los nuevos cuerpos femeninos e identidades de género pone en duda la consabida relación entre cuerpo de mujer y género femenino dominante, enfrentándonos con el argumento del “control social”, donde las mujeres deportistas solo pueden transgredir las fronteras del género, si en cierta forma después lo codifica o corrigen, es decir, si después demuestran de manera explícita que adoptan la feminidad socialmente establecidas. 2 Por ello nos planteamos, ¿Qué imagen se tiene de las mujeres que practican deportes que no son propios del género femenino?, Un género femenino configurado a partir del modelo androcéntrico de deporte. ¿Cómo influye esta imagen cuando se intentan popularizar estos deportes entre las mujeres? ¿Por qué si la mujer disfruta de plena libertad para practicar cualquier deporte, todavía son bajas las cuotas femeninas en deportes que no responden al estereotipo femenino

An agile container-based approach to TaaS

Current cloud deployment scenarios imply a need for fast testing of user oriented software in diverse, hetero-geneous and often unknown hardware and network environ-ments, making it difficult to ensure optimal or reproducible in-site testing. The current paper proposes the use of container based lightweight virtualization with a ready-to-run, just-in-time deployment strategy in order to minimize time and resources needed for streamlined multicomponent prototyping in PaaS systems. To that end, we will study a specific case of use consisting of providing end users with pre-tested custom prepackaged and preconfigured software, guaranteeing the viability of the aforementioned custom software, the syntactical integrity of the provided deployment system, the availability of needed dependencies as well as the sanity check of the already deployed and running software. From an architectural stand-point, by using standard, common use deployment packages as Chef or Puppet hosted in parallellizable workloads over ready-to-run Docker images, we can minimize the time required for full-deployment multicomponent systems testing and valida-tion, as well as wrap the commonly provided features via a user-accessible RESTful API. The proposed infrastructure is currently available and freely accessible as part of the FIWARE EU initiative, and is open to third party collaboration and extension from a FOSS perspective

Salarios pactados en los convenios provinciales y salarios percibidos

En esta investigación se trata saber en qué medida las tarifas salariales mínimas pactadas en los convenios colectivos territoriales, en España, se trasladan a los salarios efectivamente percibidos por los trabajadores. Con este fin, se ha creado una base de datos original sobre tarifas salariales. Más concretamente, se han calculado los salarios pactados correspondientes a los individuos de una submuestra de la Encuesta de Estructura, Biografía y Conciencia de Clase y se han comparado a través de un índice creado al efecto, con los salarios declarados por tales individuos.Del trabajo realizado se desprenden algunas conclusiones importantes. Así, se demuestra que la negociación colectiva territorial desempeña una función decisiva en la determinación de los salarios percibidos por los trabajadores con bajos niveles de cualificación. En cambio, entre los trabajadores más cualificados son frecuentes las renegociaciones que apartan sus ingresos de los pactados. Por otra parte, se ha detectado un amplio colectivo de individuos que declaran unos ingresos inferiores a las tarifas mínimas acordadas en los convenios territoriales. Este segmento de "mercado negro de trabajo" se localiza preferentemente entre trabajadores de bajo nivel de formación específica y en empresas muy pequeñas

Generating context-aware recommendations using banking data in a mobile recommender system

The increasing adoption of smartphones by the society has created a new area of research in recommender systems. This new domain is based on using location and context-awareness to provide personalization. This paper describes a model to generate context-aware recommendations for mobile recommender systems using banking data in order to recommend places where the bank customers have previously spent their money. In this work we have used real data provided by a well know Spanish bank. The mobile prototype deployed in the bank Labs environment was evaluated in a survey among 100 users with good results regarding usefulness and effectiveness. The results also showed that test users had a high confidence in a recommender system based on real banking data

Role of Eu2+ and Dy3+ Concentration in the Persistent Luminescence of Sr2MgSi2O7 Glass-Ceramics

In this study, glass-ceramics based on Sr2MgSi2O7 phosphor co-doped with Eu/Dy were obtained from the sintering and crystallisation of glass powders. The glasses were melted in a gas furnace to simulate an industrial process, and the dopant concentration was varied to optimise the luminescence persistence times. The doped parent glasses showed red emission under UV light excitation due to the doping of Eu3+ ions, while the corresponding glass-ceramics showed persistent blue emission corresponding to the presence of Eu2+ in the crystalline environment. The dopant concentration had a strong impact on the sintering/crystallisation kinetics affecting the final glass-ceramic microstructure. The microstructures and morphology of the crystals responsible for the blue emission were observed by scanning electron microscopy–cathodoluminescence. The composition of the crystallised phases and the distribution of rare-earth (RE) ions in the crystals and in the residual glassy phase were determined by X-ray diffraction and energy dispersive X-ray analysis. The emission and persistence of phosphorescence were studied by photoluminescence.This research was funded by MICINN under projects PID2020-115419GB-C-21/C-22/AEI/ 10.13039/501100011033 and PID2019-107439GB-I00 and by the project PIE-CSIC 201960E016. And The APC was funded by PID2020-115419GB-C-21/C-22/AEI/ 10.13039/501100011033

Structure and luminescent properties of Sm/Dy-doped Sr2MgSi2O7 glass-ceramics

Sm3+-doped and Sm3+/Dy3+ codoped SiO2–SrO–MgO glasses were prepared by conventional melt quenching and Sr2MgSi2O7 based glass–ceramics from sintering and crystallization of the glass powders. The thermal, structural, and optical properties of the glasses and glass–ceramics were investigated as a function of the dopant concentration. The optical characterization includes the photoluminescence spectra and the lifetimes of the 4G5/2 (Sm3+) and 4F9/2 (Dy3+) excited states. In Sm3+ single-doped samples, the emission intensity increases up to a concentration of 0.3 mol% Sm3+ ions and then decreases due to nonradiative energy transfer processes. The emission spectra in the glass–ceramics show a more resolved structure and higher intensity compared to the glass samples, suggesting a different and crystalline environment for the Sm3+ ions. The non-radiative processes also influence the experimental decays of the glass samples which deviate from a single exponential with lifetimes decreasing as Sm3+ concentration increases. The emission and excitation spectra of the codoped samples do not show significant energy transfer between Sm3+ and Dy3+ ions. Different emitting colors can be obtained in the codoped glasses by changing the excitation wavelength. The studied glass–ceramics could be applied as enamels on ceramic or metallic substrates.Funding from MICINN under projects PID2020-115419GB-C-21/C-22/AEI/ 10.13039/501100011033, PID2019-107439GB-I00 and PIE-CSIC 201960E016 is acknowledged

Systematic review of potential causes of intraocular lens opacification

Intraocular lens (IOL) opacification is an infrequent complication of cataract surgery. Surface analysis has demonstrated that the opacification of IOLs is related to calcium or phosphate precipitation on or within the lenses, but the associated mechanisms are unknown, and the scientific literature is heterogeneous and limited to case series and retrospective studies. The purpose of this systematic review was to analyse the most frequent conditions associated with opacification of IOLs reported by studies. A search was carried out using the PubMed MEDLINE, Web of Science and Scopus databases. The quality of the studies selected was evaluated using the Pierson tool. The search provided a total of 811 articles, of which 39 were selected following the inclusion and exclusion criteria. The most common opacified lenses were hydrophilic IOLs according to our analysis. The mean time of appearance of lens opacification was 14.93 ± 17.82 months. The most frequent conditions associated with opacification of the IOLs were Descemet Stripping with Automated Endothelial Keratoplasty (DSAEK/DSEK) and diabetes mellitus (DM), followed by pars plana vitrectomy (PPV), blood hypertension (HT), and glaucoma. Concerning the quality analysis, the mean score was 7.00 ± 1.43 (scoring range from 0 to 10), indicating an acceptable quality of the case reports and retrospective studies. In conclusion, DSAEK/DSEK, DM, PPV, glaucoma and hypertension are conditions with potential risk of IOL opacification after cataract surgery, especially when implanting hydrophilic acrylic IOLs.Ministry of Economy, Industry and Competitiveness of Spain, Grant/Award Number: RYC‐2016‐20471

Optimizing tip-surface interactions in ESR-STM experiments

Electron-spin resonance carried out with scanning tunneling microscopes (ESR-STM) is a recently developed experimental technique that is attracting enormous interest on account of its potential to carry out single-spin on-surface resonance with subatomic resolution. Here we carry out a theoretical study of the role of tip-adatom interactions and provide guidelines for choosing the experimental parameters in order to optimize spin resonance measurements. We consider the case of the Fe adatom on a MgO surface and its interaction with the spin-polarized STM tip. We address three problems: first, how to optimize the tip-sample distance to cancel the effective magnetic field created by the tip on the surface spin, in order to carry out proper magnetic field sensing. Second, how to reduce the voltage dependence of the surface-spin resonant frequency, in order to minimize tip-induced decoherence due to voltage noise. Third, we propose an experimental protocol to infer the detuning angle between the applied field and the tip magnetization, which plays a crucial role in the modeling of the experimental results.Comment: 10 pages, 5 Figure