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La radio: una herramienta al servicio del conocimiento y la inclusión social de personas con diversidad funcional intelectual
No full textSon varias las razones para reconocer la importancia del medio radiofónico en el aula y en los
centros de enseñanza. Una de ellas es que la radio, permite que el estudiante tenga una
relación más dinámica y participativa con el conocimiento, comparta este proceso con sus
compañeros y se escuche a sí mismo por medio de emisiones internas o externas en su propio
centro. (Niño y Pérez, 2005). Nuestro alumnado se cansa y aburre en las clases, perdiendo cada
día más la atención en el aula. En parte, se debe a que son espectadores pasivos de su
conocimiento, por lo que el profesorado deberá de promover estrategias y actividades que
desarrolle un aprendizaje activo con el fin de que sean protagonistas de la adquisición de las
competencias personales, sociales y académicas oportunas
Machine Learning to Predict Recommendation by Tourists in a Spanish Province
No full textThe analysis of the opinions and experiences of tourists is a key issue in tourist promotion. More precisely, forecasting whether a tourist will or will not recommend a given destination, based on his/her profile, is of utmost importance in order to optimize management actions. According to this idea, this research proposes the application of cutting-edge machine learning techniques in order to predict tourist recommendation of rural destinations. More precisely, classifiers based on supervised learning (namely Support Vector Machine, Decision Trees, and k-Nearest Neighbor) are applied to survey data collected in the province of Burgos (Spain). Available data suffer from a common problem in real-life datasets (data unbalance) as there are very few negative recommendations. In order to address such problem, that penalizes learning, data balancing techniques have been also applied. The satisfactory results validate the proposed application, being a useful tool for tourist managers.This work was financially supported by the Society for the Development of the Province of Burgos thanks to the collaboration agreement signed between the University of Burgos and this institution for the development of actions included in PEBUR 15-20, in the fields of tourism, economic environment and human capital
Behavior of Real Scale Beams Manufactured with Electric Arc Furnace Slag Concrete
No full textComunicación presentada en: 1St conference of the European Association on Quality Control of Bridges and Structures (EUROSTRUCT) 2021, en septiembre en Padova (Italia)We live in a consumer society that generates excessive amounts of waste. Innovative techniques to reduce these volumes of waste are therefore important lines of research in engineering. The Electric Arc Furnace steelmaking industry in the Basque Country produces almost 1% of global electric-arc-steel production. Although driving the economy, it also implies the generation of a huge amounts of waste that has to be managed within a small region. Concrete is an extensively used product, which can absorb notable amounts of Electric Arc Furnace slag but, at the moment, there are only applications for use in unreinforced concrete. In this research work, real scale concrete beams containing electric arc furnace slag concrete are manufactured, in order to study their structural behavior. Our results showed that reinforced concrete elements containing electric arc furnace slag can be safely manufactured using current design standards.This research work was supported by the Spanish Ministry of Universities, MICINN, AEI, EU, ERDF and NextGenerationEU [grant numbers PID2020-113837RB-I00; 10.13039/501100011033; TED2021-129715B-I00]; the Junta de Castilla y León (Regional Government) and ERDF [grant number UIC-231]; and the University of Burgos [grant number SUCONS, Y135.GI]
hMSCs in contact with DMSO for cryopreservation: Experiments and modeling of osmotic injury and cytotoxic effect
Get PDFIn this study a combined analysis of osmotic injury and cytotoxic effect useful for the optimization of the cryopreservation process of a cell suspension is carried out. The case of human Mesenchymal Stem Cells (hMSCs) from Umbilical Cord Blood (UCB) in contact with dimethyl sulfoxide (DMSO) acting as Cryo-Protectant Agent (CPA) is investigated from the experimental as well as the theoretical perspective. The experimental runs are conducted by suspending the cells in hypertonic solutions of DMSO at varying osmolality, system temperature, and contact times; then, at room temperature, cells are pelleted by centrifugation and suspended back to isotonic conditions. Eventually, cell count and viability are measured by means of a Coulter counter and flow-cytometer, respectively. Overall, a decrease in cell count and viability results when DMSO concentration, temperature, and contact time increase. A novel mathematical model is developed and proposed to interpret measured data by dividing the cell population between viable and nonviable cells. The decrease of cell count is ascribed exclusively to the osmotic injury caused by expansion lysis: excessive swelling causes the burst of both viable as well as nonviable cells. On the other hand, the reduction of cell viability is ascribed only to cytotoxicity which gradually transforms viable cells into nonviable ones. A chemical reaction engineering approach is adopted to describe the dynamics of both phenomena: by following the kinetics of two chemical reactions during cell osmosis inside a closed system it is shown that the simultaneous reduction of cell count and viability may be successfully interpreted. The use of the Surface Area Regulation (SAR) model recently proposed by the authors allows one to avoid the setting in advance of fixed cell Osmotic Tolerance Limits (OTLs), as traditionally done in cryopreservation literature to circumvent the mathematical simulation of osmotic injury. Comparisons between experimental data and theoretical simulations are provided: first, a nonlinear regression analysis is performed to evaluate unknown model parameters through a best-fitting procedure carried out in a sequential fashion; then, the proposed model is validated by full predictions of system behavior measured at operating conditions different from those used during the best-fit procedure.This project was funded by the European Union's Horizon 2020 research and innovation program under grant agreement No. 734434
Financial literacy in SMEs: A systematic literature review and a framework for further inquiry
No full textIt has been suggested that financial literacy plays a crucial role in the understanding of the overall performance of small and medium-sized enterprises (SMEs). Nonetheless, its impact remains underexplored, and the few existing findings are fragmented. This study conducts a systematic literature review focused on the antecedents and consequences of financial literacy in SMEs. The findings show that some educational, cultural, and specific contextual factors are antecedents of financial literacy; in turn, financial literacy influences the financial attitudes, financial behaviors, organizational capabilities, and performance of SMEs. Further research should analyze the uncovered lines of study suggested in our research agenda to consolidate the conceptualization of financial literacy in the context of SMEs, overcome the limitations of the current methodology, extend the current evidence about the antecedents and consequences of financial literacy in SMEs and analyze these relationships from behavioral economics and decision-making perspectives.This work was supported by the Fundación de las Cajas de Ahorros (EF001-2018; EF003-2021); Fundação para a Ciência e Tecnologia (UIDB/04728/2020-FCT); Spanish Ministry of Science and Innovation (PID2019-106677GB-I00)
Mejora de las asignaturas relativas a prevención de riesgos laborales con la introducción de la robótica colaborativa
Get PDFEs necesario introducir en asignaturas de prevención de riesgos
laborales nuevos conocimientos sobre las novedosas tecnologías
disponibles en industria. Por ello, con la aparición de los
robots colaborativos (cobots) se plantea una práctica para su
uso y conocimiento por parte del estudiante dentro de la parte
de seguridad en máquinas.It is necessary to introduce in occupational risk prevention subjects
new knowledge about the new technologies available in
industry. For this reason, with the appearance of collaborative
robots (cobots) the student within the part of machine safety
proposes a practice for its use and knowledge
Effect of confirmation and structured inquiry on attitudes toward school science
Get PDFGuided and open inquiry strategies are found to improve students’ attitudes toward science. Yet, confirmation and structured inquiry are more often enacted by teachers. The effectiveness of these approaches involving high teacher guidance remains unexplored. Students in six classes (N = 119, Mage = 11.25 years) were assigned to control (lecture) or treatment (confirmation or structured inquiry) groups. The intervention consisted of two units of 3 h each. Following the intervention, students in the structured inquiry condition reported more intentions to enroll in school science than their counterparts in the confirmation inquiry or lecture group. There were no differences in enjoyableness, self-efficacy, usefulness, and relevance of school science between pedagogical conditions. The findings support the use of structured inquiry over confirmation inquiry and lecture-based strategies for developing students’ science career aspirations, which has implications for science teacher professional development and the design of instructional resources