King Juan Carlos University
Archivo Abierto Institucional de la Universidad Rey Juan CarlosNot a member yet
28087 research outputs found
Sort by
Flipped Laboratory-Aula Invertida en Laboratorio (AI-L-QF II): aprendizaje autónomo en la adquisición de fundamentos para las Prácticas de Laboratorio de Química-Física : PIE24_005
No full textThe present projecto, which we have called Flipped Laboratory, integrates the flipped classroom methodology approach in laboratory settings. The implementation of this methodology has been carried out in the laboratory specifically for Physical Chemistry practices (AI-L) in two courses in the degrees of Pharmacy and Experimental Sciences at Rey Juan Carlos University (URJC). The main goal has been to encourage self-directed learning among students in this experimental area for the development of their practical skills in the laboratory. To achieve this purpose, several digital resources have been provided to students before each practical daily session. At the beginning of the practical sessions, discussions were promoted between assistant professors and students both in person and using interactive platforms. Subsequently, students have carried out their practical sessions with complete autonomy. The direct consequence of these initiatives is that students have gained a greater degree of independence in their practical work. Objective assessment results indicated highly positive outcomes. Additionally, the analysis of student satisfaction surveys has revealed increased motivation and efficient participation. These results show how students were able to take charge of guiding their own learning
thoroughly during practical sessions, thereby fulfilling the intended objectives.This work was funded by the Vice-Rectorate for Transformation and Digital Education at Rey Juan Carlos through the Educational Innovation projects PIE24_005 & PIE23_95, entitled: “Flipped Laboratory: Autonomous Learning in Acquiring Fundamentals for Physical Chemistry Laboratory Practices”
The role of blockchain-related technologies in transforming the tourism and hospitality industry: an overview and research guidelines
No full textThis paper has been funded by Project PID2021-124641NB-I00 of the Ministry of Science, Innovation and Universities (Spain)Purpose – This paper aims to examine the relationship between the implementation of blockchain in the
tourism and hospitality industry (T&HI) and its state-of-the-art. The aim is also to identify emerging research
topics and gaps in this area.
Design/methodology/approach – A bibliometric overview is presented to examine articles from Web of
Science published between 2018 and January 2024. The analysis was performed by VOSviewer software
using the co-occurrence technique.
Findings – The results reveal the growing interest in blockchain technologies (BCT) applications in the T&HI.
To reveal the conceptual structure and emerging research hotspots in this area, seven clusterswere identified along
with their interrelationships. This paper discusses the features and attributes of BCT mechanisms, including
cryptocurrencies, distributed ledgers, smart contracts and consensus algorithms. The analysis highlights the
drivers for increasing adoption and acceptance to promote smart tourism, transparency, trustworthiness and
disintermediation. This paper explores the use of non-fungible tokens (NFTs) in the metaverse to promote
authenticity and enhance tourists’ experiences, with emphasis on achieving cost-effectiveness and sustainability in
the T&HI. In addition, key challenges are identified,with a focus on security and privacy.
Practical implications – This study provides timely and valuable insights concerning the application of
BCT in the T&HI. It elucidates the factors that contribute to the optimal implementation of BCT, such as the
collaboration between stakeholders and the key role of regulatory frameworks. Furthermore, it considers the
implications for the design of new services towards enhancing sustainability and customer experiences.
Originality/value – This paper presents the first bibliometric analysis of the use of BCT in the T&HI. It
identifies research gaps and future research avenues, which can guide further investigation in this area. This
study provides valuable information for organisations, managers and academics who are considering future
applications, benefits and challenges in the field of sustainability issues and technology acceptance
The role of reducing and acidic hydrothermal fluids in forming chloride deposits in Terra Sirenum, Mars
No full textOrbital remote sensing has shown that some regions of the ancient Martian crust contain hundreds of discrete terrains covered by chloride‐rich evaporites. In terrestrial evaporitic systems,
evaporite sequences typically begin with the deposition of carbonates, followed by sulfates, and finally chlorides, a depositional sequence that has not yet been found on Mars. Instead, sulfate deposits are
always separated spatially and temporally from chlorides, suggesting two different depositional regimes. Here, we present a model driven by the Martian chlorine geochemical cycle that allows the formation of
chlorides whilst simultaneously inhibiting sulfate and carbonate precipitation. In this model, the chlorides are produced under reducing and acidic conditions. Chloride deposition was driven by hydrothermal
alteration of the Martian crust associated with faults, followed by precipitation from ascending saline solutions along the tectonic conduits. These processes occurred under a relatively thick and reducing
atmosphere (1–0.1 bar). The crustal circulation of chloride‐precipitating fluids may have been driven by tectonic suction and pumping processes. Parental brines from hydrothermal activity sourcing chloride
might also have contributed to the sulfates found in Cross and Columbus craters of Terra Sirenum. Our study integrates orbital imaging, topography, and spectroscopy with geochemical modeling and terrestrial
analogs. We propose that the Terra Sirenum chloride deposits derive from subsurface brines, with deposition driven using tectonic and hydrothermal processes. Under inferred reducing and anoxic
conditions, chloride formed with minimal co‐precipitation of sulfates and carbonates. Unlike isolated chloride deposits confined to topographic lows, the Terra Sirenum chlorides are associated with linear
features interpreted as faults
Marco conceptual: objeto, ámbito y alcance de la dirección publica profesional en España
No full textLa dirección pública profesional es un elemento clave en la modernización de la Administración pública en España. Este capítulo analiza su papel en la mejora de la gestión pública, destacando su impacto en la eficiencia, la transparencia y la rendición de cuentas. Se enfatiza la necesidad de profesionalizar la función directiva para reducir la politización y garantizar decisiones técnicas basadas en evidencias. Se presentan distintos modelos de dirección pública profesional, contrastando la experiencia española con otros países como Reino Unido, Francia y Portugal. En España, a pesar de intentos normativos como el Estatuto Básico del Empleado Público, persisten obstáculos como la influencia política y la falta de un marco homogéneo. El capítulo concluye señalando la importancia de fortalecer la formación, la evaluación del desempeño y la ética pública en la gestión directiva para consolidar una Administración más eficiente, innovadora y orientada al servicio ciudadan
Update on Opium Alkaloids in Food: Exploring Their Occurrence, Effect of Culinary Processing and Advances in Analytical Methodologies
No full textFollowing the implementation of the new European legislation on opium alkaloids (OAs) in food in 2023, scientific research hasfocused on developing analytical methodologies to determine the presence of these compounds in different foods. However, healthauthorities continue to suggest further studies to evaluate the occurrence of main OAs and the impact of culinary processing.Concerns remain regarding the potential health risks associated with consuming foods containing OAs. This review providesan updated overview of OAs on food, addressing their occurrence, toxicity, and the risks and benefits associated with poppyseed consumption. It compiles data from recent studies and official reports, including notifications from the Rapid Alert Systemfor Food and Feed (RASFF). Additionally, the influence of culinary processing on OAs concentration is analyzed, highlightingthe main findings and research gaps. The review also discusses advancements in analytical methodologies, with emphasis onimprovements in green sample preparation to purify extracts and validation of methodologies to improve detection reliability.Elevated concentrations of OAs above legislated limits have been reported. However, various culinary processing methods allowfor significant reduction of these levels. Proper control of the initial concentration, together with appropriate processing practices,can mitigate the risks associated with ingestion of contaminated foods. Despite methodological advances in detection, furtherrefinement of analytical methods for different food matrices is needed. Future research should focus on the optimization of thesemethods for the determination of all OAs, besides morphine and codeine, as well as on the effects of processing and the possibleformation of degradation compounds
CISOTED24
No full textActas del mencionado Congreso.El libro de actas del II Congreso Internacional sobre Ciencias Sociales, Tecnología y Educación (CISOTED24), celebrado en la ciudad de Madrid los días 17 y 18 de octubre de 2024, con una jornada cultural el 19 de octubre, fue coordinado por el Grupo de Investigación LIDA y organizado por docentes de la Universidad Rey Juan Carlos, la Universidad Complutense de Madrid y la Universidad Autónoma de Madrid. Representa un foro de encuentro para investigadores, docentes y profesionales comprometidos con la intersección de las ciencias sociales, la tecnología y la educación.
En esta edición, CISOTED24 ha centrado su enfoque en las narrativas digitales para la enseñanza de la historia democrática. A partir de diversas contribuciones, se han abordado temáticas como el uso de materiales didácticos digitales en la enseñanza de la historia, el análisis de los actores, movimientos sociales y espacios culturales que han contribuido a la construcción de la democracia, así como la implementación de itinerarios didácticos que integran elementos urbanos y naturales para una comprensión más holística de los fenómenos históricos y sociales.
El congreso ha reunido a expertos de distintas disciplinas para reflexionar sobre el papel de la tecnología en la educación y en la difusión del conocimiento histórico. Además, se han presentado estudios teóricos y prácticos relacionados con la pedagogía crítica, la tecnología educativa y la didáctica de las Ciencias Sociales, promoviendo un diálogo interdisciplinar enriquecedor.
El presente libro de actas recoge las ponencias y comunicaciones presentadas durante el congreso, proporcionando un valioso testimonio del estado actual de la investigación en estas áreas y ofreciendo nuevas perspectivas para su desarrollo futuro. Cada una de las contribuciones refleja el compromiso y el rigor académico de los participantes, así como su interés en fomentar una educación más crítica, inclusiva e innovadora.
Esperamos que este libro constituya una referencia útil para investigadores, docentes y profesionales interesados en la interacción entre las ciencias sociales, la tecnología y la educación, y que contribuya al avance del conocimiento y a la generación de nuevas líneas
de investigación.Convocatoria de Ayudas a Congresos, Jornadas y Seminarios 202
Ruta diamante y acceso abierto: Características y desafíos para la edición de revistas científicas
No full textEl artículo presenta a la ruta diamante como modelo de acceso abierto en la publicación científica, definido por la gratuidad para autores y lectores, frente a otras opciones con costes asociados, como la vía dorada y la suscripción editorial. El objetivo es identificar y describir las ventajas, desafíos y características de la ruta diamante mediante una revisión de la literatura científica sobre el tema. La metodología consiste en una meta-síntesis integradora basada en revisión bibliográfica y síntesis temática, evaluando estudios clave para identificar las características de las revistas diamante y su sostenibilidad. Las fases incluyeron definición de objetivos, evaluación de materiales y análisis de contenido. Los resultados subrayan las virtudes de este modelo: Eliminación de barreras económicas, diversidad lingüística y difusión internacional. Sin embargo, el modelo se enfrenta a retos como los recursos limitados, la falta de indexación en los principales índices, y dificultades para encontrar revisores. El estudio concluye que la ruta diamante es una alternativa sostenible y alineada con los principios de la ciencia abierta. Su consolidación requiere políticas que garanticen financiación, reconocimiento institucional y estrategias para mejorar su visibilidad y calidad, fomentando un ecosistema editorial más inclusivo y accesible
A mediation model for enhancing socioemotional and cognitive skills and facilitating knowledge management through serious board games: advancing intrinsic motivation
No full textAbstract
Purpose – This study aims to address how educational board games, based on neuroplasticity, can enhance the cognitive and socioemotional skills of future leaders. It explores their impact on intrinsic motivation, which is crucial for knowledge management as it drives engagement and long-term learning, and the mediating role of socioemotional skills in this process. Integrating these games into the curriculum of economics and business professionals-in-the-making improves the competencies necessary for business leadership, complementing traditional academic training while fostering decision-making and leadership abilities. Educational board games can strengthen the skills required for leadership in business. Design/methodology/approach – In this cross-sectional survey-based study, data was analysed from 71 volunteers to assess their levels of various soft skills. A descriptive analysis of the sample variables was conducted, followed by a mediation analysis to ascertain the impact of the predictor variables on the outcome variables – motivation, learning strategies and knowledge management and sharing. Findings – In the pre-test assessment model, the predictor variables do not exhibit a significant direct influence on the objective variable, motivation, although both direct and indirect effects were measured. Conversely, in the post-test assessment model, conducted after the training, the predictor variables demonstrate a significant impact on motivation, leading to increased levels of the target variable in response to increases in the predictor variables. Research limitations/implications – Given the population to which the study has been directed, namely future workers in the short term, some of the questions in the questionnaires, as well as the
dynamics of the games, have not been fully understood, despite the information available on
the objectives of the study, their interest and motivation to participate. These factors suggests that part of
the currently validated psychometric tests should be reformulated to adapt them to the language of the
new generations.
Practical implications – The authors can conclude that when soft skills are well acquired and
internalized, individuals can better manage their emotions, establish positive and healthy intra- and
interpersonal relationships, take decisions and resolve conflicts in the company more effectively.
Although the skills considered in this research are associated with cognitive and socioemotional
competencies associated with the personality traits of individuals, they are essential to provide synergies
in the company’s knowledge management.
Social implications – The proper management of the measures considered here helps to promote
cooperation and conflict resolution, emotional self-regulation and the resilience of workers in the face of
stressful situations, improve the leadership capacity of work teams and collaboration and contribute to
making balanced decisions linked to the company’s objectives. If, in addition, they consider that these
skills have positive and direct effects on the motivation of workers, resulting in higher levels of certain
skills, one of the strategic lines of companies should be to promote these skills and, therefore, positively
affect their motivation.
Originality/value – This study is groundbreaking as it establishes a relationship between individuals’
cognitive and socioemotional skills and their motivation within the context of business administration. By
using a mediation model, it aims to enhance knowledge management and its transfer in fragile and nonlinear
environments
Bioethanol Steam Reforming for Hydrogen Production over Ni-Cr/SBA 15: Influence of Metal Loading and Ni/Cr Ratio
No full textThis work examines the influence of metal loading and the Ni/Cr ratio of Ni-Cr/SBA-15 catalysts on bioethanol steam reforming for the first time. The characterization of the synthesized samples reveals that higher Cr amounts result in lower Ni crystallite sizes due to the promoting effect of Cr, thereby enhancing the dispersion of the active phase. The catalytic performance has been evaluated in terms of ethanol conversion and H2 TOF (min−1). Ethanol conversion exhibits an increasing trend with higher Ni content, reaching up to 90% for samples containing 15 wt.%. By increasing the Cr content (lower Ni/Cr ratio) the results evidence a similar trend. A synergistic effect between Ni and Cr was appreciated in conversion values when the Ni content was below 11 wt.% and the Cr content exceeded 2 wt.%, which coincides with a smaller Ni crystallite size. Concerning the H2 TOF, the catalyst with the lowest Ni content (7 wt.%) exhibited a higher value with a notable enhancement upon increasing the Cr loading. However, a considerable decrease in H2 TOF was observed for samples with higher Ni loading. Therefore, the best catalytic performance, achieving nearly complete ethanol conversion and high hydrogen production, was reached when using catalysts with 7 wt.% Ni; the Cr loading should be increased to around 2 wt.%
