Impacto de la pandemia Covid-19 en el uso de TICs y TACs en los docentes de Lengua Extranjera

¿Ha sido el Coronavirus una oportunidad de cambio para la escuela y el Sistema Educativo? La pandemia ha colocado a los docentes ante un reto metodológico en el que la enseñanza On-line ha sido la alternativa a la enseñanza presencial. Todo ello ha conllevado a la incorporación de nuevas prácticas docentes, no solo durante el confinamiento sino también tras la vuelta a las aulas. Por consiguiente, el principal objetivo de esta investigación es analizar los cambios que los docentes de Lengua Extranjera han realizado respecto al uso de herramientas TIC y TAC, comunicación y metodología docente tras la pandemia del Covid-19. Mediante una metodología cualitativa se ha entrevistado a 9 docentes de Educación Primaria que imparten la asignatura de Lengua Extranjera. Los resultados reflejan que la pandemia ha provocado un cambio conductual en los docentes, quienes han aumentado la frecuencia de uso de TICs y TACs y han incluido canales de comunicación sincrónicos en el aula para llevar a cabo la docencia tras el confinamiento

Are physical therapy interventions effective in improving sleep in people with chronic pain? A systematic review and multivariate meta-analysis

Chronic pain exerts an enormous personal and economic burden, with sleep disturbances being one of the most reported problems by adults with chronic pain. The aim of this study was to analyse whether different physical therapy interventions could lead to improvements in sleep quality and pain intensity in individuals with chronic pain, as well as if there is any association. A systematic review and a univariate and multivariate meta-analysis were carried out according to the PRISMA guidelines. A search in PubMed, Scopus and Web of Science databases was performed. Six randomised controlled trials were included in the review and four of them were included in the meta-analysis; all of them with a moderate to high methodological quality. Data from adult participants with chronic pain after different physical therapy interventions was extracted. For the meta-analysis, the Insomnia Severity Index and the Numerical Rating Scale were considered. Results from the qualitative and quantitative analysis showed that most of the physical therapy interventions included had higher improvements in the intervention group than in the control group, although the effect size was not statistically significant (univariate for sleep quality: −0.08 [−0.34, 0.18], p = 0.46; univariate for pain intensity: −0.47 [−1.24, 0.30], p = 0.18; multivariate for both outcomes: −0.27). More studies are still needed to determine which physical therapy interventions are effective to improve sleep in people with chronic pain and if there are patients with specific characteristics who may benefit more than others

Plan de mejora de las técnicas continuas de depuración extracorpórea mediante la anticoagulación regional con citrato

Introducción: Las técnicas continuas de depuración extracorpórea se utilizan como medio de depuración sanguínea en pacientes con fracaso renal agudo en situación crítica. La coagulación del filtro es un problema importante en la práctica clínica diaria y por ello es necesaria la anticoagulación del sistema. Debido a las complicaciones hemorrágicas y a la trombocitopenia producida en los pacientes anticoagulados con heparina en este tipo de terapias, está emergiendo la anticoagulación regional con citrato como un método más seguro y económico en comparación con la anticoagulación sistémica con heparina. Objetivo general: Diseñar un plan de mejora de las técnicas continuas de depuración extracorpórea mediante la anticoagulación regional con citrato. Metodología: Se ha realizado una revisión bibliográfica en las principales bases de datos sobre la anticoagulación regional con citrato en las técnicas continuas de depuración extracorpórea. El desarrollo del plan de mejora de calidad se ha efectuado siguiendo el ciclo de Deming. El ámbito de estudio ha sido el Hospital Royo Villanova perteneciente al Sector Sanitario Zaragoza I, siendo los sujetos de estudio el equipo de enfermería de la unidad de cuidados intensivos de dicho hospital. Conclusión: La anticoagulación regional con citrato parece ser un método eficaz de anticoagulación en los pacientes sometidos a técnicas continuas de depuración extracorpórea, siendo un factor importante la formación del equipo de enfermería de la unidad de cuidados intensivos, en cuanto a la prevención de la coagulación del filtro y de las complicaciones metabólicas.<br /

The Neolithic Flint Quarry of Pozarrate (Treviño, Northern Spain)

In this work, we present the preliminary data we have obtained in the Neolithic flint quarry of Pozarrate, currently under archaeological works. We want to put forward an update about the sedimentary fillings of one of the crescent-shaped dump quarries (6000-5600 BP). It is located at the Sierra de Araico-Cucho (Trevino, northern Spain). In this region, Tertiary carbonated terrains which host important silicifications called Trevino flint (Tarrino, A. (2006). El silex en la cuenca vasco-cantabrica y Pirineo Navarro. Caracterizacion y su aprovechamiento en la Prehistoria. Monograia 21, Museo Nacional y Centro de Investigacion de Altamira. Madrid: Ministerio de Cultura) are outcropped. The procurement of these silicifications by prehistoric populations was motivated by the good quality of this raw material for knapping. Currently, it constitutes one of the few Neolithic known flint mines of the Iberian Peninsula, understood as places of exploitation of flint with landscape modifications. Some instruments related to prehistoric quarry works have been recovered, such as picks, maces, and hammers made of flint, dolerite, and deer antler. Studies on Pozarrate material remains have been conducted in an interdisciplinary way, in order to have a better understanding of the prehistoric mining processes. Several methodologies are being used in the study of the lithic industries, including flint characterization, procurement, typological, typometrical, technological, and functional approaches. We have obtained the initial data about extraction, selection, management, and use processes of the flint and dolerite assemblages. Deer antler remains have recently undergone a restoration process and preliminary data have been offered. Moreover, an experimental approach has been applied to clarify specific archaeological issues and technical solutions for quarrying using dolerite maces.This article is the result of the collaboration of several researchers from different institutions, including the Universities of the Basque Country (UPV/EHU), Oviedo, Leon, CENIEH and UNED-Bergara, on the basis of Spanish Science Ministry funding projects: HAR2015-67429-P and PID2020-118359GB-I00. One of the authors (NC) benefited from the Research Talent Attraction post-doctoral fellowship, 2017-T2/HUM-3488, financed by Comunidad de Madrid at the Department of Prehistory and Archaeology of Universidad Autonoma de Madrid. The lithic analysis of the cores was carried out thanks to the "APPREND" project: Apprenticeship in Prehistory, PGC2018-093309-A-I00, founded by the National Spanish Program of Knowledge Generation R&D&I and finally, we express our gratitude to anonymous reviewers 1 and 3 for their suggestions

Manejo del ultrasonido en la técnica de inserción del PICC (catéter venoso central de inserción periférica)

Los PICC son catéteres venosos centrales que se insertan por vía periférica hasta el tercio inferior de la vena cava superior, en la zona anterior a la entrada de la aurícula derecha. Estos catéteres son utilizados para la administración de tratamientos intravenosos y/o con fines diagnósticos. Además, están asociados a un bajo promedio de infecciones y complicaciones, inferiores a los catéteres venosos centrales estándares. Múltiples estudios han demostrado el aumento de la seguridad y eficiencia de los accesos vasculares guiados por ultrasonidos, comparados con los guiados por referencias anatómicas “a ciegas”. Sin embargo, la integración de la seguridad en este procedimiento requiere formación, entrenamiento adicional y experiencia. Los ultrasonidos facilitan la inserción de los PICC, ya que permiten visualizar las características anatómicas de cada paciente y seleccionar la vena más adecuada.<br /

Analysis and implementation of the autotransformer forward-flyback converter applied to photovoltaic systems

The Distributed Maximum Power Point Tracking (DMPPT) architecture is employed to overcome the mismatching phenomena in grid-tied photovoltaic (PV) installations. In this kind of architecture, a DC-DC module integrated converter (MIC) manages each PV panel. Thanks to the DC-DC converters, the differences between PV panels do not influence others, maximizing the amount of harvested power. The MIC requirements to make this kind of solutions profitable are voltage step-down and step-up capability, low cost and high efficiency. This paper analyses the Autotransformer Forward-Flyback (AFF) converter. This converter is considered as a MIC candidate for fulfilling the requirements above. The study of the AFF converter includes the steady-state analysis and the small signal analysis in continuous conduction mode. The advantages of the AFF converter are the capability of voltage step-down and step-up; the simplicity since it only includes a single controlled switch; the use of an autotransformer; good dynamic performances and the soft switching characteristics in all the diodes. The paper includes a detailed AFF converter step-by-step design procedure, applied to 100&#8239;kW grid-tied PV installation, in which the effect of shadows has been considered. A 225&#8239;W AFF converter prototype validates the theoretical analyses, achieving an efficiency up to 94.5%.This work has been supported by the Ministry of Economy and Competitiveness and FEDER funds through the research project "Storage and Energy Management for Hybrid Electric Vehicles based on Fuel Cell, Battery and Supercapacitors" - ELECTRICAR-AG- (DPI2014-53685-C2-1-R

Archivos y Bibliotecas

We analyze the situation in 2004 of the Regional System of Archives and Libraries (Murcia), to identify the main shortcomings. According to them, action proposals are made to guarantee the right of public access to information, culture and education in Murcia

Learn to emotionally manage the motivation of achievement in Primary Education. Intervention proposal

Educar en la motivación de logro es una premisa básica en la tarea del educador, y aprender a gestionarla emocionalmente una competencia a adquirir por los educandos para prevenir efectos colaterales perversos como frustración, desajustes en las expectativas, autoestima, sobrelevación del perfeccionismo y autoexigecia, etc. Constatado que los esfuerzos se centran más en la primera tarea, y no tanto en la segunda, se estima oportuno el diseño de un programa de intervención para promover el aprendizaje de la gestión emocional de la motivación de logro en los estudiantes de tercer ciclo de primaria. Proyecto compuesto por 25 actividades organizadas en 8 módulos en el que trabajan el autoestima, el autoconcepto y la gestión y control emocional desde una metodología de trabajo basada en el aprendizaje cooperativo-colaborativo, el uso de técnicas artísticas y la gamificación como vehículo metodológico para practicar lo emocional. El impacto de este tipo de intervención en el clima de aula, rendimiento académico, relaciones entre iguales, salud emocional, ha sido puesto de manifiesto en la bibliografía precedente, lo que permite concluir que resulta fundamental para el desarrollo personal de los estudiantes y para la mejora de la convivencia escolar.Abstract: Educating achievement motivation is a basic premise in the task of the educator, and learning to manage it emotionally is a skill to be acquired by students to prevent perverse collateral effects such as frustration, mismatches in expectations, self-esteem, over-emphasis on perfectionism and self-demanding, etc. Given that efforts are focused more on the first task, and less on the second, it is considered appropriate to design an intervention programmed to promote the learning of emotional management of achievement motivation in third cycle primary school students. The project consists of 25 activities organized into 8 modules in which they work on self-esteem, self-concept and emotional management and control using a work methodology based on cooperative-collaborative learning, the use of artistic techniques and gamification as a methodological vehicle for practicing emotional skills. The impact of this type of intervention on classroom climate, academic performance, peer relations and emotional health has been highlighted in the previous bibliography, which leads to the conclusion that it is fundamental for the personal development of students and for the improvement of school coexistence

Eficiencia en la venta electrónica del turismo: una aproximación al “mobile” como nuevo canal de ventas

La realidad que vivimos día a día no puede pasar desapercibida ante la presencia de las Tecnologías de la Información y la Comunicación (TICs); tanto es así que en algunos casos están llevando al cambio del paradigma de negocio tradicional, o en su caso, directamente está teniendo lugar la creación de empresas con base tecnológica. En este sentido, el turismo se encuadra como sector puntero, no sólo en nuestro país, sino en el resto del mundo, tal cual nos indica la Organización Mundial del Turismo (OMT). Esta situación nos lleva a analizar el espectro en el que nos movemos, qué herramientas son empleadas en la comercialización electrónica del turismo y como deben ser utilizadas éstas para su máximo rendimiento. Son muchas las empresas turísticas españolas que se engancharon al carro del comercio electrónico (e-commerce), y no habiendo consumado esta fase de adaptación, el mobilecommerce (m-commerce) comienza a invadir nuestro país, con importantes niveles de éxito contrastado en países como Reino Unido y Japón. Es por ello, que nos vemos inducidos no sólo a estudiar lo que ha ocurrido y está ocurriendo en el e-commerce, sino también a trabajar a fondo sobre la realidad del mobile como un potente instrumento de venta en el sector turístico.The reality we live day to day cannot go unnoticed in the presence of the Technologies of Information and Communication Technologies (ICTs), so much so that in some cases those ones are leading the traditional business paradigm, or in any case, it has taken place the directly creation of technology-based businesses. In this sense, tourism is considered as a leading sector, not only in our country, but throughout the world, as it is indicatedbythe World Tourism Organization (WTO). This situation moves us to analyze the spectrum in which we move, what tools are used in the tourism electronic marketing and how these should be used for maximum performance. Many Spanish tourism companies adopted the electronic commerce (e-commerce) model, but without have finished this adaptation phase the mobile commerce (m-commerce) began to invade our country, with significant levels of success in countries as United Kingdom and Japan. This reason we are studying what has happened and is happening in e-commerce, and work very hard about mobile as a powerful sales tool in the tourism sector

Clues from Spitzer/IRS spectra on the Compton thickness and the existence of the dusty torus

[Context]: Most of the optically classified low-ionisation, narrow emission-line regions (LINERs) nuclei host an active galactic nucleus (AGN). However, how they fit into the unified model (UM) of AGN is still an open question. [Aims]: The aims of this work are to study at mid-infrared (mid-IR) (1) the Compton-thick nature of LINERs (i.e. hydrogen column densities of NH> 1.5 × 1024 cm-2) and (2) the disappearance of the dusty torus in LINERs predicted from theoretical arguments. [Methods]: We have compiled all the available low spectral-resolution, mid-IR spectra of LINERs from the InfraRed Spectrograph (IRS) onboard Spitzer. The sample contains 40 LINERs. We have complemented the LINER sample with Spitzer/IRS spectra of PGQSOs, Type-1 Seyferts (S1s), Type-2 Seyferts (S2s), and StarBurst (SB) nuclei. We studied the AGN compared to the starburst content in our sample using different indicators: the equivalent width of the polycyclic aromatic hydrocarbon at 6.2 μm, the strength of the silicate feature at 9.7 μm, and the steepness of the mid-IR spectra. We classified the spectra as SB-dominated and AGN-dominated, according to these diagnostics and compared the average mid-IR spectra of the various classes. Moreover, we studied the correlation between the 12 μm luminosity, νLν(12 μm), and the 2−10 keV energy band X-ray luminosity, LX(2−10 keV). [Results]: In 25 out of the 40 LINERs (i.e. 62.5%), the mid-IR spectra are not SB-dominated, similar to the comparison S2 sample (67.7%). The average spectra of both SB-dominated LINERs and S2s are very similar to the average spectrum of the SB class. The average spectrum of AGN-dominated LINERs is different from the average spectra of the other optical classes, showing a rather flat spectrum at 6-28 μm. We find that the average spectrum of AGN-dominated LINERs with X-ray luminosities LX(2−10 keV) > 1041 erg/s is similar to the average mid-IR spectrum of AGN-dominated S2s. However, faint LINERs (i.e. LX(2−10 keV) < 1041 erg/s) show flat spectra different from any of the other optical classes. The correlation between νLν(12 μm) and LX(2−10 keV) for AGN nicely extends towards low luminosities only if SB-dominated LINERs are excluded and if the 2−10 keV band X-ray luminosity is corrected in Compton-thick LINER candidates. [Conclusions]: We find that LINERs proposed as Compton-thick candidates at X-ray wavelengths may be confirmed according to the X-ray to mid-IR luminosity relation. We show evidence that the dusty-torus disappear when their bolometric luminosity is below Lbol ≃ 1042 erg/s. We suggest that the dominant emission at mid-IR of faint LINERs might be a combination of an elliptical galaxy host (characterised by the lack of gas), a starburst, a jet, and/or ADAF emission. Alternatively, the mid-IR emission of some of these faint LINERs could be a combination of elliptical galaxy plus carbon-rich planetary nebulae. To reconcile the Compton-thick nature of a large number of LINERs without dusty-torus signatures, we suggest that the material producing the Compton-thick X-ray obscuration is free of dust.This research has been supported by the Spanish Ministry of Economy and Competitiveness (MINECO) under the grant (project refs. AYA2013-42227-P, AYA 2012-39168-C03-01, and AYA 2010-15169) and by La Junta de Andalucia (TIC 114). AAH acknowledges support from grant AYA2012-31447. D.D. acknowledges support from grant 107313 from PAPIIT, UNAM. C.R.A. is supported by a Marie Curie Intra European Fellowship within the 7th European Community Framework Programme (PIEF-GA-2012-327934).Peer Reviewe