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Ponencia presentada en XVI Congreso Español y Euroamericano de Sexología

Comunicación oral presentada en el XVI Congreso Español y Euroamericano de Sexología

Topological insulators (TIs) are a promising class of materials for manipulating the magnetization of an adjacent ferromagnet (FM) through the spin-orbit torque (SOT) mechanism. However, current studies combining TIs with conventional FMs present large device-to-device variations, resulting in a broad distribution of SOT magnitudes. It has been identified that the interfacial quality between the TI and the FM is of utmost importance in determining the nature and efficiency of the SOT. To optimize the SOT magnitude and enable ultra-low-power magnetization switching, an atomically smooth interface is necessary. To this end, we have developed the growth of a full van der Waals FM/TI heterostructure by molecular beam epitaxy. The compensated TI (Bi0.4Sb0.6)2Te3 and ferromagnetic Fe3GeTe2 (FGT) were chosen because of their exceptional crystalline quality, low carrier concentration in BST and relatively large Curie temperature and perpendicular magnetic anisotropy in FGT. We characterized the magnitude of the SOTs by using thorough harmonic magnetotransport measurements and showed that the magnetization of an ultrathin FGT film could be switched with a current density Jc < 10^10 A/m^2. In comparison to previous studies utilizing traditional FMs, our findings are highly reliable, displaying little to no variation between devices.

El uso de brazos robóticos con agarre de tipo mano permite automatizar tareas previamente realizadas por humanos, minimizando la necesidad de acondicionar el entorno al brazo robótico. Esto es debido a la destreza y capacidad de manipulación que otorgan este tipo de agarres. Su aplicación es evidente: desde permitir un mayor grado de automatización en procesos industriales a incrementar la capacidad motriz de personas con discapacidades mediante sistemas asistenciales. No obstante, estas aplicaciones requieren con frecuencia manipular objetos previamente desconocidos, lo que en la práctica conlleva un sobre-coste elevado para reconfigurar y reprogramar el agarre del robot al nuevo objeto. A pesar de la existencia de simuladores que nos permite de manera eficiente evaluar y verificar que la configuración es válida para el agarre, automatizar la identificación del agarre sigue siendo un aspecto desafiante de la robótica. Por otro lado, en función de la tarea a realizar es posible que el agarre óptimo pueda impedir la manipulación, es por tanto necesario que el sistema sea multisolución, es decir, sea capaz de encontrar múltiples agarres alternativos lo suficientemente viables. En este trabajo se abordará la identificación automática de múltiples agarres para un objeto previamente desconocido mediante el uso de aprendizaje automático. Para ello, se evaluará en un simulador robótico una aproximación de prueba y error basada en la optimización bayesiana multisolución, la variante multisolución de un método de optimización global de caja negra.

The acquisition, management, processing and improvement of knowledge, as well as the effective and efficient treatment of huge amounts of data, big data using learning techniques, have become a very important function of information systems applications within organizations for solving problems with Artificial Intelligence. Rapid technological progress has been made both in knowledge-based systems, including expert systems, modes reasoning and knowledge acquisition and management, as in Artificial Neural Networks, and its construction methodologies, which is essential in order to deal , respectively, with knowledge assets and huge amounts of data in organizations currently.This chapter relates knowledge-based systems and artificial neural networks for the management and increase of organizational knowledge and specifies different rules, methods, techniques and strategies that can be adopted by companies for the successful implementation within Artificial Intelligence applicability scenario. 2021-22

This book seeks to build a shared understanding of Artificial Intelligence (AI) within the global business scenario today and in the near future. Drawing on academic theory and real-world case studies, it examines AI’s development and application across a number of business contexts. Taking current scholarship forward in its engagement with AI theory and practice for enterprises and applied research and innovation, it outlines international practices for the promotion of reliable AI systems, trends, research and development, fostering a digital ecosystem for AI and preparing companies for job transformation and building skills. This book will be of great interest to academics studying Digital Business, Digital Strategy, Innovation Management, and Information Technology. 2021-22

We generate synthetic images with a generative adversarial network (GAN) model trained with image patches from specular microscopy corneal endothelial cells. Preliminary results show it may be a suitable approach for reliable cell segmentation. © 2022 The Author(s)

En la actualidad, la dimensión económico-financiera ha tomado fuerza en el proceso de recomposición curricular y de formación del profesorado, principalmente, debido al impulso de organizaciones económicas, cuyos informes incorporan, cada vez en mayor medida, los criterios de los que han de partir las políticas educativas que abordan estos contenidos en el escenario escolar. En este sentido, este estudio presenta parte de los resultados de una investigación realizada en dos centros andaluces de Educación Secundaria y Bachillerato, entre cuyos objetivos destacamos dos: Indagar el reflejo de las directrices de organismos económicos en los planes educativos de Economía y estudiar la incidencia de las mismas en la formación del profesorado que imparte estas asignaturas. La investigación se plantea desde un enfoque metodológico cualitativo-interpretativo, a partir de lo que Stake (2007) denomina estudio de caso instrumental. Para abordar la investigación, desde esta perspectiva, hemos utilizado, como principales técnicas para la recogida de información, entrevistas semiestructuradas, observación participante y análisis de documentos.Los resultados obtenidos evidencian que organismos económicos, como la OCDE, elaboran en sus informes directrices cuyo reflejo es evidente en el devenir curricular de las asignaturas económicas, así como en la formación del profesorado que imparte y trabaja estas materias en el contexto escolar.

The large variety of 2D materials and their co-integration in van der Waals heterostructures enable innovative device engineering. In addition, their atomically thin nature promotes the design of artificial materials by proximity effects that originate from short-range interactions. Such a designer approach is particularly compelling for spintronics, which typically harnesses functionalities from thin layers of magnetic and non-magnetic materials and the interfaces between them. Here we provide an overview of recent progress in 2D spintronics and opto-spintronics using van der Waals heterostructures. After an introduction to the forefront of spin transport research, we highlight the unique spin-related phenomena arising from spin–orbit and magnetic proximity effects. We further describe the ability to create multifunctional hybrid heterostructures based on van der Waals materials, combining spin, valley and excitonic degrees of freedom. We end with an outlook on perspectives and challenges for the design and production of ultracompact all-2D spin devices and their potential applications in conventional and quantum technologies. J.F.S. and S.O.V. acknowledge support of the European Union’s Horizon 2020 FET-PROACTIVE project TOCHA under grant agreement 824140, the King Abdullah University of Science and Technology (KAUST) through award number OSR-2018-CRG7-3717 and MINECO under contract numbers PID2019-111773RB-I00/AEI/10.13039/501100011033, RYC2019-028368-I/AEI/10.13039/50110001103 and SEV-2017-0706 Severo Ochoa. J.F., S.R. and S.O.V. acknowledge support from the European Union Horizon 2020 Research and Innovation Program under contract number 881603 (Graphene Flagship) and J.F. acknowledges support from the Deutsche Forschungsgemeinschaft (DFG, German research Foundation) under grant numbers SFB 1277 (project-id:314695032) and SPP 2244. R.K.K. acknowledges support from the US DOE-BES (grant number DE-SC0016379), AFOSR MURI 2D MAGIC (grant number FA9550-19-1-0390) and NSF MRSEC (grant number DMR-2011876).

Customer service chatbots are conversational systems designed to provide information to customers about products/services offered by different companies. Particularly, intent recognition is one of the core components in the natural language understating capabilities of a chatbot system. Among the different intents that a chatbot is trained to recognize, there is a set of them that is universal to any customer service chatbot. Universal intents may include salutation, switch the conversation to a human agent, farewells, among others. A system to recognize those universal intents will be very helpful to optimize the training process of specific customer service chatbots. We propose the development of a universal intent recognition system, which is trained to recognize a selected group of 11 intents that are common in 28 different chatbots. The proposed system is trained considering state-of-the-art word-embedding models such as word2vec and BERT, and deep classifiers based on convolutional and recurrent neural networks. The proposed model is able to discriminate between those universal intents with a balanced accuracy up to 80.4\%. In addition, the proposed system is equally accurate to recognize intents expressed both in short and long text requests. At the same time, misclassification errors often occurs between intents with very similar semantic fields such as farewells and positive comments. The proposed system will be very helpful to optimize the training process of a customer service chatbot because some of the intents will be already available and detected by our system. At the same time, the proposed approach will be a suitable base model to train more specific chatbots by applying transfer learning strategies.

The interconversion between spin and charge degrees of freedom offers incredible potential for spintronic devices, opening routes for spin injection, detection, and manipulation alternative to the use of ferromagnets. The understanding and control of such interconversion mechanisms, which rely on spin-orbit coupling, is therefore an exciting prospect. The emergence of van der Waals materials possessing large spin-orbit coupling (such as transition metal dichalcogenides or topological insulators) and/or recently discovered van der Waals layered ferromagnets further extends the possibility of spin-to-charge interconversion to ultrathin spintronic devices. Additionally, they offer abundant room for progress in discovering and analyzing novel spin-charge interconversion phenomena. Modifying the properties of van der Waals materials through proximity effects is an added degree of tunability also under exploration. This Perspective discusses the recent advances toward spin-to-charge interconversion in van der Waals materials. It highlights scientific developments which include techniques for large-scale growth, device physics, and theoretical aspects. The authors thank H. Okuno for the images in Figs. 2(d)–2(h). All authors acknowledge financial support from the King Abdullah University of Science and Technology under Grant No. ORS-2018-CRG7-3717. The ICN2 authors were also supported by the European Union Horizon 2020 research and innovation program under Grant Agreement Nos. 881603 (Graphene Flagship), 824140 (TOCHA, H2020-FETPROACT-01-2018), and 840588 (GRISOTO, Marie Sklodowska-Curie fellowship). ICN2 is also funded by the CERCA Programme/Generalitat de Catalunya and is supported by the Severo Ochoa program from Spanish MINECO (Grant Nos. SEV-2017-0706, PID2019-111773RB-I00/AEI/10.13039/501100011033, and RYC2019-028368-I/AEI/10.13039/501100011033). The CNRS-CEA authors acknowledge financial support from the European Union Horizon 2020 research and innovation program under Grant Agreement No. 881603 (Graphene Flagship), the French ANR projects MAGICVALLEY (Grant No. ANR-18-CE24-0007), and ELMAX (Grant No. ANR-20-CE24-0015) and from the UGA IDEX IRS/EVASPIN.

Universidad de Sevilla: Escuela Politécnica Superior VII Jornada de Investigación Desarrollo e Innovación de la Escuela Politécnica Superior de la Universidad de Sevilla, El objetivo de este trabajo ha sido desarrollar recubrimientos orgánicos-inorgánicos modificados con dispersiones de partículas de hidroxiapatita (HAp) para mejorar la biocompatibilidad y la respuesta de osteoblastos humanos normales (NHOst) en términos de viabilidad y de adhesión sobre una aleación Ti6Al4V. Los recubrimientos híbridos se han obtenido por vía sol-gel a partir de mezclas de tetrametilortosilicato y ¿-metacriloxipropiltrimetoxisilano. Las partículas de HAp se han obtenido también por vía sol-gel mediante hidrólisis y condensación de una mezcla de trietilfosfito y nitrato de calcio tetrahidratado en cantidades estequiométricas, con una relación Ca/P de 1,67. Para la sinterización de los polvos de HAp, se han aplicado tratamiento térmicos convencionales y una modificación de la técnica de análisis térmico a velocidad controlada (CRTA), que ha mostrado ser una alternativa viable para la producción de películas delgadas de hidroxiapatita sintética con superficie específica controlada y distribución homogénea de poros. Se ha demostrado que la incorporación de partículas de HAp en la red híbrida mejora la adsorción de fibrinógeno y la protección frente a la corrosión de la aleación Ti6Al4V, probablemente debido a un aumento del grado de reticulación de la matriz órgano-polisiloxánica y del espesor del recubrimiento.

SpeakerDrum is an instrument composed of multiple Dual Voice Coil speakers (DVC) where two coils are used to drive the same membrane. However, in this case, one of them is used as a microphone which is then used by the performer as an input interface of percussive gestures. Of course, this leads to poten- tial feedback, but with enough control, a compelling exploration of resonance haptic feedback and sound embodiment is possible.

SpeakerDrum is an instrument composed of multiple Dual Voice Coil speakers (DVC) where two coils are used to drive the same membrane. However, in this case, one of them is used as a microphone which is then used by the performer as an input interface of percussive gestures. Of course, this leads to poten- tial feedback, but with enough control, a compelling exploration of resonance haptic feedback and sound embodiment is possible.

The work bases the place that occupies as a source and theoretical influence the Martian ideology in the philosophical work of Alejandro Serrano Caldera. Evidence of the common perspective around the ideas that they sustain in a continuity that deepens in the determining causes of the absence of freedoms with which the western civilization in America is born. In each of these thinkers our America is made and the political philosophy that it offers humanity in its most perceptible reaches and anguish. From this analysis an ontological reconstruction is carried out that tries to define the being in this cultural hemisphere.

236th ECS Meeting, Ti6Al4V is one of the most commonly used biomaterials in orthopedic applications due to its interesting mechanical properties, corrosion resistance and reasonable biocompatibility, which derive from a compact, thin, and chemically stable oxide film that spontaneously develops on these materials surface able to minimize ion release. Despite these advantages, a post-operative serious and unresolved problem leading to the failure of the implant is the appearance of implant-associated infections. For this reason, the ability to control microbial adhesion is of importance in healthcare, particularly in modern surgery where postoperative implant associated infections are still an unresolved and serious complication. As a proof of concept, we have assessed the antibacterial behaviour of Ti6Al4V surfaces modified by organic-inorganic hybrid sol-gel films with different loading of ZrO2 nanoparticles. The starting organosilica sol was prepared using a mixture of ¿-methacryloxypropyltrimethoxysilane (MAPTMS) and tetramethyl orthosilicate (TMOS). Tetrabutoxyzirconium (TBZ) was used as precursor of ZrO2 nanoparticles. Sol-gel films with variable contents of TBZ (0.2¿1.0 wt.%) have been tested. The thermal stability of the resulting sol-gel films was studied by using thermal analysis (TG/DTG). Structural characterization of the films was carried out using Attenuated Total Reflectance Fourier transformer Infrared spectroscopy (ATR-FTIR). Surface morphology and composition of coated samples have been analized by Optical and Scanning Electron Microscopy coupled with Energy Dispersive X-ray (OM and SEM/EDX) both before and after the corrosion tests were carried out. The evaluation of the barrier properties on the films and corrosion behaviour of the Ti6Al4V were carried out using Global and Local Electrochemical Impedance Spectroscopy (EIS/LEIS) during immersion in a simulated body fluid (SBF). Regarding bacterial adhesion, two representative strains of the vast majority of nosocomial infections related to orthopedic implants, i.e., Staphylococcus aureus and Staphylococcus epidermidis, were used. Optical and scanning electron microscopies observations have shown the formation of a uniform, homogeneous, crack free and highly adherent protective film on the Ti6Al4V substrates. The electrochemical studies and bacterial adhesion assessments have shown that the incorporation of ZrO2 in MAPTMS/TMOS matrix of the sol-gel films enhance their corrosion protection behaviour and antibacterial capability. Studies on the optimization of the sol-gel formulation to obtain the films with the best antibacterial capability without compromising their good corrosion resistance using different ZrO2 doses are in progress.

The annual event of the European Federation of Corrosion (EUROCORR 2019), The requirement to decrease the weight of vehicle components for reduction of fuel consumption and gas (CO2) emissions has led to searching for light weight alloys. Magnesium alloys are the lightest structural materials. Despite their good mechanical properties such as high strength to weight ratio, magnesium alloys have found limited application mainly due to their poor corrosion resistance. Among the effective methods for corrosion protection, surface treatments based on the application of sol-gel thin films are one of the most versatile alternatives which provide the possibility to design and obtain tailored and eco-friendly multifunctional surfaces onto the surface of Mg and its alloys. In close relation with the development of new and effective methods for corrosion protection of Mg and its alloys is the use of electrochemical techniques for their evaluation. The combination of global and localised electrochemical techniques is necessary to characterise the different electrochemical activity, highly reactive sites and/or passive regions which take place on corroding surface. In the case of Mg and Mg alloys, due to its high reactivity in presence of aqueous corrosive media, that readily reacts with water, producing large amounts of H2 gas, a proper electrochemical characterisation is not an easy issue. This H2 evolution leads to a change in the natural convection of the electrolyte and thus in the electrochemistry of the system under study. The exposition time to the aggressive medium is another important factor, since the increase in pH of the solutions, due to the corrosion processes, causes the precipitation of Mg(OH)2, leading to a further change in the electrochemical activity of the material. For its evaluation, a new methodology combining accelerated test, global and localised electrochemical techniques is proposed to study different sol-gel films applied onto AZ91 Mg alloys. The sol-gel films are designed either to provide barrier protection i.e inhibitor free films or to provide active protection, that is, sol-gel films doped with organic corrosion inhibitors, benzotriazole and L-cysteine. The localised electrochemical measurements are performed by using, i) a mini-cell system (MCS) as example of microcapillary localised electrochemical technique ii) Localised Electrochemical Impedance Spectroscopy (LEIS) and Scanning Vibrating Electrode Technique (SVET) as example of scanning localised electrochemical techniques. In this study, the advantages and challenges faced by localized electrochemical techniques to characterize Mg corrosion and the evaluation of the corrosion protection afforded by tailored sol-gel films, will be highlighted, as this remains a complex task. A new methodology which combine both global and localised electrochemical techniques is proposed specially for the study of Mg alloys/coating systems.

The annual event of the European Federation of Corrosion (EUROCORR 2019), This communication shows a review of the main results of a collaborative work of interdisciplinary nature. The research is focused on the preparation of new sol-gel thin films for improving corrosion resistance and biocompatibility of Ti6Al4V alloys. With this aim, different strategies are being applied. For example, mixtures of two organopolysiloxane precursors are being used for the preparation of sol-gel matrices for hybrid coatings: tetramethylortosilicate (TMOS) as inorganic precursor of the network, and ¿-methacryloxypropyltrimethoxysilane (MAPTMS) or ¿-glycidoxypropyl trimethoxysilane (GPTMS) as organic precursors, respectively. The resulting sol-gel coatings are modified with zirconium(IV) tert-butoxide or titanium isopropoxide as precursors of ZrO2 and TiO2 micro- and nano-particles respectively, for improving their active corrosion protection or self-healing properties. Another important part of the study is consisting in using triethylphosphite and dimethylsilylphosphite to introduce phosphorus into organic¿inorganic hybrid silica network for improving the bioactivity and biocompatibility of the sol-gel coatings. The incorporation effect of the different dopant additives on the physicochemical properties is studied with different characterization techniques. Thermal stability of the hybrids is been examined by using thermogravimetric analysis (TG/DTG). Attenuated total reflectance Fourier Transformer Infrared Spectroscopy (FTIR-ATR) is applied for studying the functional groups contained in the matrix of the sol-gel coatings. Scanning Electron Microscopy (SEM) coupled with an Energy Dispersive X-ray (EDX) are applied to study the surface morphology and composition of coated samples. Normal human osteoblast (NHOst) response in terms of osteoblast viability and adhesion tests of coatings to the Ti6Al4V alloys routinely used in medical implants are used in the study. Fibrinogen has been chosen as a model for the for protein adsorption studies on the coated surfaces. Corrosion resistance of the prepared coatings during immersion tests in simulated body fluids (SBF) is been studied by applying. For this purpose global Electrochemical Impedance Spectroscopy (EIS) at macroscopic scale and local impedance spectroscopy (LEIS) at sub-millimeter and sub-microscopic scales are been applied. TG/DTG results are indicating that the addition of the dopants used for these studies do not have a negative influence on the coating stability. Addition of phosphorous precursors to TMOS-MAPTMS hybrids dramatically increased the rate of intermolecular condensation and cross-linking improving the barrier properties of coatings. The study is showing that some of these sol-gel coatings display excellent bioactivity when soaked in the SBF and good corrosion protection behaviour. These coatings can be potentially applicable for the manufacture of new implant materials for biomedical uses.

This research represents an evolution and evaluation of the embodied physical laptop instruments. Specifically, these are instruments that are physical in that they use bodily interaction, take advantage of the physical affordances of the laptop. They are embodied in the sense that instruments are played in such ways where the sound is embedded to be close to the instrument. Three distinct laptop instruments, Taptop, Armtop, and Blowtop, are introduced in this paper. We discuss the integrity of the design process with composing for laptop instruments and performing with them. In this process, our aim is to blur the boundaries of the composer and designer/engineer roles. How the physicality is achieved by leveraging musical gestures gained through traditional instrument practice is studied, as well as those inspired by body gestures. We aim to explore how using such interaction methods affects the communication between the ensemble and the audience. An aesthetic-first qualitative evaluation of these interfaces is discussed, through works and performances crafted specifically for these instruments and presented in the concert setting of the laptop orchestra. In so doing, we reflect on how such physical, embodied instrument design practices can inform a different kind of expressive and performance mindset.

A new class of organic-inorganic hybrid coatings has been developed by mixing tetramethylorthosilicate (TMOS) and 3-methacryloxypropyltrimethoxysilane (MAPTMS) as organofunctional alkoxysilanes precursors and dimethylsilylphosphite (DMTSP) as a phosphorus precursor. The effects of the DMTSP content on the thermal stability of the prepared hybrids were studied by using thermal analysis (TG/DTG). Thermal analyses were also used to determine the optimum curing temperature of the deposited hybrid films. Attenuated total reflectance infrared (ATR-IR) and solid-state 29Si nuclear magnetic resonance were applied to study the composition and functional groups in the coatings after curing and for determining the nature of condensed species in the hybrid coatings after curing. The in vitro biocompatibility of the prepared coatings was determined by fibrinogen protein adsorption on the surfaces. Immunofluorescence tests were also applied to study the morphology of osteoblast cells attached to the hybrid coatings. Finally, electrochemical impedance spectroscopy (EIS) was used to evaluate the corrosion protection of hybrid coatings on Ti6Al4V surfaces during immersion tests in SBF. Addition of DMTSP to TMOS-MAPTMS hybrid dramatically increased the rate of intermolecular condensation and cross-linking, the osteoblast in-vitro biocompatibility and corrosion resistance of the resulting organic-inorganic coatings.

SEMINARIO: Nanotecnologías emergentes: la revolución de los materiales híbridos, Los procesos preparativos de los materiales híbridos órgano-inorgánicos tienen lugar a temperaturas moderadas, permitiendo que alguno de los componentes sea de origen biológico preservando a veces propiedades ligadas a los seres vivos. Este es el caso de los denominados materiales biohíbridos y bionanocomposites, de los que la Naturaleza ofrece ejemplos como huesos, marfil, nácar, etc. Aplicando métodos de biomimetismo se pueden producir artificialmente estos materiales biohíbridos de interés, por ejemplo, en nuevas aplicaciones biomédicas.

The last decades have been characterized by important social changes, mainly due to migration and globalization. This reality has been reflected in schools across the country. To deal with this situation we need professionals who could help us in rebuilding the social schemes that identify personal relationships: the intercultural mediators. In the paper we show a naturalistic research based on an instrumental study case about intercultural mediators’ practices on and beyond the classroom. After the discursive analysis of data, we decided to present the results on three major axes: a) the purpose of intercultural mediation; b) the mediator in school organization; and c) the mediator practice’ in classroom. The conclusions we achieved, highlight the teaching staff's lack of knowledge about mediator's work and the intercultural mediator's presence in the centre; a prompt and inclusive intercultural education’s conceptualization; a collaborative inter professional work's absence and the weight of a macro organizational and macro cultural structure of schools about the work of external agents, who finishes to follow rules, which inevitably undermine their work. En las últimas décadas España ha pasado de ser un país de emigrantes a uno de los principales receptores de la inmigración en Europa. Esta realidad se ha reflejado en las escuelas de todo el país y, las administraciones educativas, han puesto a disposición de los centros escolares distintos recursos que han propiciado la llegada de los mediadores interculturales a las aulas. El trabajo que presentamos, un estudio de caso singular enmarcado en una investigación de corte cualitativo, indaga en la labor del mediador en las escuelas, profundizando en su práctica diaria dentro y fuera del aula. Después del análisis discursivo de los datos hemos decidido presentar los resultados en torno a tres grandes ejes: a) el propósito de la mediación intercultural; b) el mediador en la organización escolar; y c) la actuación del mediador en el aula. Las conclusiones a las que hemos llegado, resaltan la falta de conocimiento del profesorado de la labor mediadora y de la presencia de un mediador intercultural en el centro; la conceptualización de una educación intercultural puntual y excluyente; la inexistencia del trabajo colaborativo interprofesional y el peso que tiene la macro estructura organizativa y cultural de las escuelas en la labor de agentes externos que acaban acatando normas que desvirtúan inevitablemente su labor.

Título, resumen y palabras clave en español e inglés Resumen basado en el de la publicación Se indaga en qué medida las prácticas socio-familiares y los planteamientos educativos, en relación al bagaje cultural y lingüístico del alumnado inmigrante, han estado presentes en las trayectorias de su continuidad y éxito escolar. Se parte de un estudio cualitativo realizado en Almería (Andalucía, España) utilizando entrevistas abiertas a veintiocho jóvenes inmigrantes de ambos sexos que han alcanzado etapas post-obligatorias, con una lengua familiar distinta a la escolar. La recogida de datos se complementó con entrevistas a docentes especialmente significativos en su trayectoria educativa y a otros profesionales (mediador, orientador, director). Los resultados muestran que: (1) el bagaje cultural y lingüístico del alumnado les empodera personal y socialmente; (2) sin embargo, en el contexto escolar se encuentra relegado o ausente observándose bastante desorientación didáctica en los planteamientos docentes; (3) y ello, a pesar de que este bagaje le supone oportunidades socioeducativas relevantes. ESP

Seminario: Nanotecnologías emergentes: la revolución de los materiales híbridos, El método sol-gel se ha convertido en una útil herramienta para la preparación de nuevos materiales con propiedades electroquímicas diseñadas a la medida. En este contexto, se presta especial atención a la modulación de la respuesta en impedancia electroquímica de materiales híbridos órganoinorgánicos, utilizando la técnica de medida de la impedancia como otra valiosa herramienta interactiva que nos permite preparar estos materiales, aplicando estrategias de diseño inspiradas en la ingeniería cristalina y la arquitectura molecular. Se muestran distintos ejemplos, con el propósito de dar una visión global sobre el amplio abanico de posibilidades que presenta el método sol-gel para la preparación de materiales útiles para la construcción de dispositivos electroquímicos y otras aplicaciones avanzadas.

A version of the Double Standard Scale (SDSS) is presented to assess the subjective perception of societys support for the Sexual Double Standard (SDS). We examine its psychometric properties in a sample of Spanish population heterosexual of 1,206 individuals (50% males), distributed across three groups (18-34, 35-49, and 50 years old or older).We performed Exploratory Factor Analysis and Confirmatory. The found version consists of 18 item distributed into three factors (Acceptance for Male Sexual Shyness,Acceptance for Female Sexual Freedom and Acceptance for Traditional Double Standard). A second-order factor structure was also adequate. Internal consistency, temporal stability and validity evidence are reported. This version of the SDSS is reliable and valid. It allows to assess the perception of societal sexual double standard. Its usefulness to improve the predictive validity of the standardized scales that evaluate the individual adhesion to SDS is discussed.

7th International Congress of Biomaterials, The aim of this work was to study the electrochemical corrosion behaviour and biocompatibility of Ti6Al4V biomedical alloy coated with organopolysiloxane films modified with TiO2 and ZrO2 nanoparticles. Films were prepared by sol-gel processes. Tetramethyl orthosilicate (TMOS) and 3-methacryloxypropyltrimethoxysilane (MAPTMS) were used as precursors of the organic- inorganic network. Titanium tetrabutoxide (TBT) and zirconium tetrabutoxide (ZBT) were used as precursors of dioxide nanoparticles. The thermal stability of the organic-inorganic hybrids was studied by thermogravimetric analysis (TG/DTA). The structural characterization was carried out by infrared spectroscopy (ATR-FTIR). The hydrophilicity of the coatings was determined by measurements of the contact angle. Finally, the morphology and the composition of the coatings was characterized by scanning electron microscopy and X-ray dispersive energy (SEM/EDX). The corrosion behavior of the metal/coating systems during immersion tests in Kokubo's simulated body fluid (SBF) was studied by applying global and localized electrochemical impedance spectroscopy (EIS and LEIS). The in vitro bioactivity of the coatings was evaluated after immersion tests in SBF by SEM/EDX and X-ray diffraction (XRD) analyses. The in vitro biocompatibility was evaluated by adsorption tests of proteins (fibrinogen). This study was carried out applying the Bradford method and ATR-FTIR, after immersion in fibrinogen solutions. As a summary, it can conclude that uniform, homogeneous and free of cracks nanocomposite coatings have been successfully. Electrochemical evaluation and in vitro bioactivity studies confirmed that these systems can be potentially interesting for the development of new coatings for orthopedic Ti6Al4V implants.

The European Corrosion Congress – EUROCORR. Applied Science with constant Awareness, September, 9-13 2018, ICE Krakow, Poland., Lanthanum compounds as doping agents in silica based sol-gel coatings can play as environmentally friendly corrosion inhibitors of metallic surfaces of interest in automotive and/or aeronautical industries. In the framework of an interdisciplinary research project the application of lanthanum-silica sol-gel coatings to metallic surfaces of historical interest is being explored for the first time. This contribution presents such application as far as four different metallic substrates are concerned: copper, bronze, lead, and steel. Coatings were prepared from tetraethoxysilane (TEOS) as precursor, distilled water for hydrolysis, absolute ethanol as solvent and HNO3 as catalyst of the hydrolysis. Two types of coatings were formulated: one of them using lanthanum nitrate as doping agent, and another one using lanthanum tri-acetate. Both coatings were deposited upon either common glass slides or metallic plates from 1.0 to 1.5 mm in thickness of copper, bronze, lead, and steel by dip coating at a constant drawing speed (2.0 mm s-1), under controlled temperature (25°C) and relative humidity (35%). Partial thermal densification was accomplished in a forced air stove at 60°C for 72 h. Low quality plates of these four metals and alloys were selected since they are among the most common substrates of metallic items of historical and Heritage interest. Once coatings were made the remaining sols were gelled at 35°C for 48 h. After that, sol-gel monoliths were powdered for characterization by Fourier transformed infrared spectroscopy (FTIR), differential thermal analysis (DTA) and thermogravimetry (TG). A set of sol-gel coating/metal systems was coated with transparent polyvinylbutyral films to simulate commercial top-coatings. Coatings thickness was evaluated by the interference fringe method. The corrosion resistance of both types of lanthanum-silica sol-gel coatings was studied through cathodic delamination tests and electrochemical impedance spectroscopy (EIS) measurements carried out during immersion of coated samples into a 0.6 M NaCl aqueous solution. In addition, chemical and optical quality was also evaluated by weathering and resistance tests. Microstructure was studied by field emission scanning electron microscopy (FESEM). The results indicate that a concentration of 1 mol % of La2O3 respect to the sol-gel coating formulation is adequate for La3+-ions to remain entrapped in the pores and interstitial sites of the silica matrix and thus behave as active corrosion inhibitors that are released when the metal/coating system is set in contact with the aqueous solution. Moreover, the precipitation of insoluble lanthanum products provides a self-healing mechanism which later plays as a protective barrier for the delay of early corrosion. The electrochemical study by joined cathodic delamination tests and EIS has proved to be very effective in evaluating not only the inhibitor effect of lanthanum compounds but also their self-healing properties., Projects ref. MAT2015-65445-C2-1-R and MAT2015-65445-C2-2-R. Program Geomateriales 2 (S2013/MIT 2914 CAM EU) (Dr. J. Peña-Poza contract).

Symposium on Biodegradable Metals for Biomedical Applications, One of the main effects sought in laser shock processing (LSP) [1] is the generation of relatively deep compression residual stresses into metallic components to improve their fatigue life. In addition, other surface related properties (topography, wettability, corrosion¿), relevant for the intended application, can be affected. This paper shows preliminary results of an ongoing investigation about the effects of LSP on mechanical and corrosion properties of two Mg alloys suitable for the fabrication of biodegradable and bioabsorbable devices., MAT2015-63974-C4 (MINECO) and S2013/MIT-2862 Multimat (CM)

We determine the spin-lifetime anisotropy of spin-polarized carriers in graphene. In contrast to prior approaches, our method does not require large out-of-plane magnetic fields and thus it is reliable for both low-and high-carrier densities. We first determine the in-plane spin lifetime by conventional spin precession measurements with magnetic fields perpendicular to the graphene plane. Then, to evaluate the out-of-plane spin lifetime, we implement spin precession measurements under oblique magnetic fields that generate an out-of-plane spin population. We find that the spin-lifetime anisotropy of graphene on silicon oxide is independent of carrier density and temperature down to 150 K, and much weaker than previously reported. Indeed, within the experimental uncertainty, the spin relaxation is isotropic. Altogether with the gate dependence of the spin lifetime, this indicates that the spin relaxation is driven by magnetic impurities or random spin-orbit or gauge fields., This research was partially supported by the European Research Council under Grant Agreement No. 308023 SPINBOUND, by the Spanish Ministry of Economy and Competitiveness, MINECO (under Contract No. MAT2013-46785-P and Severo Ochoa No. SEV-2013-0295), and by the Secretariat for Universities and Research, Knowledge Department of the Generalitat de Catalunya. M.V.C., J.F.S. and J.C. acknowledge support from the Ramón y Cajal, Juan de la Cierva and Beatriu de Pinós programs, respectively. F.B. acknowledges funding from the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme FP7/2007-2013/ under REA Grant Agreement No. 624897. J.E.S. and J.V.d.V. acknowledge funding from the Methusalem Funding of the Flemish Government and the Research Foundation-Flanders (FWO).

Resumen del trabajo presentado al 1st Workshop Spain-Taiwan: "2D Materials and Interfaces for Spintronics", celebrado en Barcelona (España) del 23 al 25 de octubre de 2017.-- et al., The Dirac bands formed at the interface between a three-dimensional topological insulator (TI) and a trivial insulator are characterized by their spin-helicity, arising from the combination of a large spin-orbit coupling and time reversal invariance. Spin-momentum locking potentially makes TIs extremely efficient charge-to-spin converters, able to exert a large spin-orbit torque (SOT) on an adjacent ferromagnet (FM). SOT-induced ferromagnetic resonance (SOT-FMR) gives access to the nature and magnitude of the torques. So far, only few studies have focused on SOT-FMR in TI/FM multilayers, and large spin torques have been reported. However, little is known about TI/metal interfaces. Charge doping together with a strong hybridization between topological bands and metallic states is suspected to deeply weaken the spin-momentum locking, which questions the origin of the large SOT measured. We will present measurements of the non-equilibrium SOTs by current-induced ferromagnetic resonance on TI/NM/FM multilayers embedded in coplanar waveguides. A systematic combination of spin transport and photoemission shows that the chemical and electronic properties of the TI/Py interface can be tuned by using various normal metal spacers (NM=Ag,Al,Te), which results in a strong modulation of the SOTs. Details about the fabrication of single-crystal TI films by molecular beam epitaxy and their characterization will also be presented. We will show that crystal twin defects can be fully suppressed by using lattice-matched substrates and proper growth conditions, which is associated with a low doping of the free surface. Band bending effects at interfaces and their compensation by alloying will also be addressed.

Resumen del póster presentado al 1st Workshop Spain-Taiwan: "2D Materials and Interfaces for Spintronics", celebrado en Barcelona (España) del 23 al 25 de octubre de 2017., Understanding the heating, energy flow and relaxation of charge carriers in nanostructures is essential for the management of heat in next generation devices, where the ever decreasing dimensions lead to increasing leakage currents, and Joule dissipation occurs in smaller and smaller volumes. The generated heat, which has to be efficiently driven away from the electronically active region, could also be used for energy harvesting by taking advantage of thermoelectric phenomena. In this talk, I will discuss our current research on hot-carrier propagation across monolayer graphene. The device consists of a monolayer graphene flake contacted by multiple metal leads. Using two remote leads for electrical heating, a carrier temperature gradient is generated that results in a measurable thermoelectric voltage VNL across the remaining (detector) leads. Due to the nonlocal character of the measurement, VNL is exclusively due to the Seebeck effect. Remarkably, a departure from the ordinary relationship between Joule power P and VNL, VNL ~ P, becomes readily apparent at low temperatures, representing a fingerprint of hot-carrier dominated thermoelectricity. By studying VNL as a function of bias, we directly determine the carrier temperature and the characteristic cooling length for hotcarrier propagation, which are key parameters for a variety of new applications that rely on hot-carrier transport.

Resumen del póster presentado al 1st Workshop Spain-Taiwan: "2D Materials and Interfaces for Spintronics", celebrado en Barcelona (España) del 23 al 25 de octubre de 2017., We study the spin-lifetime anisotropy of spin-polarized carriers in graphene on top of hexagonal boron nitride (h-BN) using non-local lateral spin-valve devices (Figure 1) with a method that we recently developed. We first determine the in-plane spin lifetime by conventional spin precession measurements with magnetic fields perpendicular to the graphene plane. Then, to evaluate the out-of-plane spin lifetime, we create an out of plane spin population by applying an oblique magnetic field and determine the relaxation of the non-precessing spin component (Figure 2). We find, within the experimental uncertainty, that the spin relaxation in graphene on boron nitride is isotropic, as it was previously found in graphene on SiO2. This result suggests that the substrate effects present on SiO2, which are expected to be absent or suppressed on h-BN, such as roughness, dangling bonds and charge traps, might play a minor role in making the spin relaxation isotropic and, more generally, in the spin relaxation.

Acute zonal occult outer retinopathy is a disease difficult to diagnose. Within this pathology, many clinical and para-clinical tests appear normal regardless the great advances in technology. However, the findings we discovered with electrophysiology when paired with a thorough clinical anamnesis are the more reliable parameters for giving the right diagnosis.We present a clinical case of a 26 year old patient with diagnosis of acute zonal occult outer retinopathy whose optical coherence tomography and fluorescein angiography results were normal while the results of the wide field electroretinogram and multifocal electroretinogram showed alterations in the outermost layers of the retina which correlated with inferior arcuate defect in the visual field and peri-macular areas of hyperautofluorescence in the auotofluorescence. The evolution of the case is shown during 3 years appreciating the disappearance of the autofluorescence as well as progressive improvement in the visual field.

(...) if censorship is in itself a serious issue in the same language and culture, it is even more serious if it operates via translation. That is to say, from one language (and culture) to another, given that, if departing from the sense, function and form of a source text if transferred from a language to another, if the translated text is partially or wholly translated (i.e. "no-translation") or even amended, the result is a text that will definitely not resemble the original. The consequences of this are great, not only affecting the writer in the source language, but also the image, or idea, of the whole source literary system.Sadly, one of the problems scholars face when researching censorship is how difficut it is to trace it back. How do we know if a text is(n't) a translation and is(n't) available in another language? Was it translated and censored then? When we fortunately have a text translated into a different language, we can definitely say that the text has been "edited" in transferring it to the source language, that is partially censored, deleting some 'dangerous' fragments for a determined doctrine? However, this difficulty even transcends where we know the text has been censored, and it is extremely difficult to search, consult, compile and reproduce the censorship files in the Alcalá de Henares Archive.

La representación de la identidad regional extremeña, discutida y de afirmación relativamente reciente, en los museos etnográficos se caracteriza primeramente por la ausencia de una referencia comprensiva de toda la comunidad. En su lugar, varias son las experiencias de museos etnográficos de ámbito local, comarcal o provincial cuyos orígenes se sitúan en el primer tercio del siglo XX. A partir de ahí, es preciso destacar los casos de la sección etnográfica del Museo de Cáceres y de los museos de Olivenza y Plasencia como referentes regionales del modelo de museo etnográfico vigente hasta finales del siglo pasado. Frente a ello, la primera década de la centuria actual trajo consigo la creación de un buen número de nuevos museos locales centrados en la presentación de procesos productivos, sociales o rituales que responden a un nuevo concepto museográfico en que gana terreno la interpretación del Patrimonio con un escaso número de objetos y un especial protagonismo de las nuevas tecnologías. El presente trabajo trata de analizar el funcionamiento de ese modelo dual en la región así como sus luces y sombras en el momento actual y de cara a un futuro inmediato. The representation of the regional identity of Extremadura, discussed and relatively recent claimed, in Ethnographic Museums is firstly characterized by the absence of a comprehensive reference to the whole community. Instead, there are some experiences of local, regional or provincial Ethnographic Museums whose origins are in the first third of the 20th century. From there, it should be noted the cases of the Ethnographic Section of the Cáceres Museum, and also Olivenza and Plasencia Museums as regional references of the model of Ethnographic Museum used until the end of last century. On the other hand, the first decade of the present century led the creation of many new local museums focused on the presentation of productive, social or ritual processes, which respond to a new museum concept where the interpretation of Heritage is gaining importance by using a small number of objects and the special relevance of new technologies. This paper analyzes the performance of this dual model in the region and its lights and shadows nowadays and facing the near future.

We report on electric-field and temperature-dependent transport measurements in exfoliated thin crystals of the Bi2Se3 topological insulator. At low temperatures (

Under the terms of the Creative Commons Attribution License 3.0 (CC-BY)., We report on electric-field and temperature-dependent transport measurements in exfoliated thin crystals of the Bi2Se3 topological insulator. At low temperatures (, We acknowledge the support from the European Research Council (ERC Grant Agreement No. 308023 SPINBOUND), MINECO (MAT2010-18065, MAT2012-33911, and RYC-2011-08319), and AGAUR (Beatriu de Pinós program).

This paper shows how the last algebraic matricial form can be obtained when the finite element method is used to approximate the potential distribution of a cathodic protection system that includes low conductivity irregularities in the electrolyte away from, close to and directly on the cathode. In order to study the influence of the resistivity of these irregularities on the possibilities of steel protection, five conductivities were analysed. The numerical results, validated with COMSOL® Multiphysics, show the importance of considering irregularities in the domain in order to prevent systems from becoming unprotected. The experimental data agrees with the theoretical data.

Resumen basado en el de la publicación Habiendo transcurrido 20 años de andadura y desarrollo profesional desde la implantación del especialista en audición y lenguaje itinerante, parece conveniente reflexionar sobre el modelo y tipo de actuación que desempeña esta figura especializada en los equipos de orientación educativa. Para ello se ha planteado un estudio que tiene como objeto central el maestro itinerante de audición y lenguaje destinado en equipos de orientación educativa, su modelo de intervención, los programas y contenidos que ocupan su actividad profesional y qué construcción de su rol profesional están desarrollando. Se han adentrado en ello a través de un estudio que abarca todos los escenarios de la provincia de Almería en la que se hallan trabajando maestros itinerantes de audición y lenguaje desde los citados equipos de orientación. La metodología cualitativa e interpretativa es la que ha permitido acercarse a una comprensión del fenómeno estudiado, una inmersión que contribuya a comprender la complejidad organizativa que conlleva la intervención de este profesional. ESP

In the ethnogenesis process of the region of Extremadura, the regional symbols play a key role both in creating new icons and the selection and updating of traditional elements, including some originated in invented traditions. Clothing is one of those symbols of the region, having become a model, Montehermoso dress, accepted as representative of the community, beside iconic models in some locations where traditional clothing was already lost one hundred years ago. En el proceso de etnogénesis de la comunidad extremeña, los símbolos regionales desempeñan un papel fundamental, tanto en la creación de iconos nuevos como en la selección y actualización de elementos tradicionales, entre los que no faltan los originados en tradiciones inventadas. La indumentaria es uno de esos símbolos de la región, habiendo llegado a constituirse un modelo, el traje de Montehermoso, aceptado como representativo de la comunidad, junto a modelos emblemáticos de algunas localidades donde en realidad la indumentaria tradicional se había perdido hace ya cien años.

This article presents a tele-assistance system based on augmented reality for elderly people that is integrated in a mobile platform. We propose the use of augmented reality for simplifying interaction with its users. The first prototype has been designed to help in medication control for ederly people. In this paper, both hardware and software architectures are described.The robotic platform is a slightly modified version of the Turtlebot platform. The software is based on ROS for the platform control, and in ArUco for the augmented reality interface. It also integrates other related systems in teleassistance such as VoIP, friendly user interface, etc.

Aquest volum constitueix un recull de les presentacions que es van fer en una jornada de treball celebrada el 19 de febrer de 2010 i organitzada pel Cercle de Lingüística Aplicada (CLA) de la Universitat de Lleida (UdL). El CLA és un grup de recerca consolidat per la Generalitat de Catalunya, que en aquell moment tot just iniciava un projecte sobre la internacionalització i el multilingüisme a tres universitats ubicades en entorns bilingües1, i que té una llarga trajectòria de recerca sobre el multilingüisme i la interculturalitat. Aquesta trajectòria ha propiciat que, des de l’any 2009, el grup s’hagi interessat per la interrelació que hi pot haver en el context de l’ensenyament universitari entre les polítiques universitàries relacionades amb la internacionalització i el multilingüisme. En aquesta mateixa línia, el tema de la jornada fou “De les polítiques a les pràctiques: estratègies per a la introducció d’una tercera llengua i per a la gestió del plurilingüisme a l’aula”, i estava adreçada específicament als vicerectorats i serveis de les universitats catalanes responsables del disseny i desplegament de les polítiques lingüístiques i d’internacionalització. Així doncs, amb el conjunt de ponències que s’apleguen en aquesta publicació, pretenem continuar el debat i l’intercanvi d’experiències que fa més de dos anys vam començar entre les universitats catalanes per tal de millorar llurs polítiques i pràctiques plurilingües davant el procés d’internacionalització. El projecte “Internacionalización y multilingüismo en universidades en contextos bilingües: Cataluña, País Vasco y Gales” va ser finançat pel Ministerio de Ciencia e Innovación (Ref.: FFI2008-00585/FILO).

In this article we want to discuss the skills required for human teleoperators of mobile robots. We show the classical problems related with teleoperation but focus our discussion in not specialized operators. We want to show how a proposal based on augmented reality interfaces can improve the performance of operators controlling the robot. We present the validation of our solution in two experiments: one in a controlled circuit and another one in a real environment. To carry out our experiments we use a low cost robotic surveillance platform

Trabajo presentado en el 222nd ECS Meeting, celebrado en Honolulu (Hawai), del 7 al 12 de octubre de 2012

Trabajo presentado en el XII Congreso Nacional de Materiales (IBEROMAT XII), celebrado en Alicante (España), del 30 de mayo al 1 de junio de 2012

Dado que las terapias conductuales de tercera generación están ganando cada vez más importancia y que éstas suponen un avance en los tratamientos psicológicos, su conocimiento y difusión entre los profesionales parecen necesarios. El presente trabajo es una respuesta a esta necesidad. El cuestionario sobre el conocimiento y la difusión de las terapias conductuales de tercera generación fue contestado por 274 psicólogos españoles de 15 comunidades autónomas. Utilizando el análisis multidimensional, se ha estudiado la distribución de la muestra respecto al conocimiento y aplicación de estas terapias, así como la relación que puedan tener con ellas variables tales como la edad, la comunidad autónoma y la experiencia profesional. Los resultados demuestran que son pocos los psicólogos españoles evaluados que conocen las terapias conductuales de tercera generación. Incluso cuando se considera la más conocida de éstas, la Terapia de Aceptación y Compromiso, donde un 74.82% ha oído hablar de ella, solamente un 16.42% la aplica habitualmente. No obstante, se ha demostrado que hay psicólogos que conocen estas terapias y las aplican de forma habitual. Se concluye que el conocimiento y la difusión de las terapias conductuales de tercera generación no son suficientes y existe la necesidad de formar a los profesionales.