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Ítem Policía Nacional y Guardia Civil en TIKTOK: una Comparativa entre Ambas Cuentas(Visual Review, 2025) Puebla-MArtínez, Belén; López-Marcos, Casandra; Hidalgo-Cobo, PabloEste estudio analiza la utilización de TikTok como herramienta comunicativa de las fuerzas y cuerpos de seguridad de España. El principal objetivo es comparar el uso que hacen Guardia Civil y Policía Nacional de esta red social considerando el texto que acompaña a los vídeos publicados. Para ello, se articula una investigación descriptiva, de enfoque cuantitativo mediante el análisis de contenido. En cuanto a la estrategia de comunicación en TikTok, los resultados obtenidos muestran que la Policía Nacional está focalizada principalmente en aspectos de seguridad y delincuencia, frente a una Guardia Civil con tendencia a hacer gala del trabajo diario.Ítem Ecofeminism and food activism in transformative travel as a tool for change(Taylor & Francis, 2025) Orea-Giner, AliciaThis study investigates the influence of ecofeminism and food activism as agents of transformative change in the context of travel. Poststructuralist feminist theories guided the application of qualitative methodologies. The results demonstrate that incorporat- ing ecofeminist principles into travel contexts disrupts conventional tourism frameworks and fosters significant social and environmen- tal transformation through mindful consumption, support of local economies, and collaboration with women-led enterprises. Challenges such as societal prejudices, greenwashing, and financial constraints impede widespread adoption. This study presents a framework that connects ecofeminism and food activism in the context of regenerative and sustainable tourism, emphasising their joint ability to address issues of environmental conservation, social justice, and ethical consumption.Ítem Bidirectional Relationship Between Insomnia and Depressive Symptoms in Family Caregivers of People with Dementia: A Longitudinal Study(MDPI Behavioral Sciences, 2025-07-10) Jiménez-Gonzalo, Lucía; Márquez-González, María; Vara-García, Carlos; Romero-Moreno, Rosa; Olazarán Rodríguez, Javier; von Känel, Roland; Mausbach, Brent T.; Losada-Baltar, AndrésBidirectionality between insomnia and depression is well documented in general and clinical populations but remains under-researched in family caregivers of people with dementia. This study aimed to explore this relationship using a longitudinal design with 155 family caregivers assessed annually over three years. Data collected included sociodemographic information, health behaviors, medical data, caregiving stressors, and depressive and insomnia symptoms. Two linear mixed models were tested: Model 1 considered insomnia symptoms as the independent variable and depressive symptoms as the outcome; Model 2 considered depressive symptoms as the independent variable and insomnia symptoms as the outcome. The results showed that caregivers with more insomnia symptoms over time had significantly higher depressive symptoms, even after adjusting for covariates. Insomnia accounted for an additional 7.47% of the variance, with a total explained variance of 57.93%. Conversely, higher depressive symptoms over time were associated with increased insomnia. Depressive symptoms explained an additional 7.28% of the variance, with a total explained variance of 25.74%. These results were consistent with previous studies on non-caregiving populations, adding empirical evidence to the notion that both insomnia and depression may operate as a risk factor for the other disorder. Caregiver support interventions could improve their psychological well-being if they incorporate sleep-focused strategies.Ítem La evaluación del desempeño profesional en profesores de inglés como lengua extranjera en Cuba desde su propia visión de la excelencia universitaria(JETT, 2013) González Gonzaléz, Daniel; López Rodríguez, SlavaEl objetivo general de este trabajo es ofrecer un sistema de indicadores de la excelencia universitaria para los profesores de Inglés en Cuba para orientar su evaluación, formación y desarrollo profesional teniendo en cuenta las diferentes etapas de su carrera académica. Los estudios sobre calidad se han incrementado en los últimos tiempos en el campo de la educación. Se han creado e implantado sistemas y procesos de acreditación para evaluar la excelencia de la enseñanza a nivel mundial. La comunidad universitaria cubana no está alejada de esa realidad. El desarrollo profesional de los profesores es un elemento muy importante a considerar. Sin embargo, no existen indicadores definidos que guíen el desempeño profesional de los mismos. El modelo de investigación adoptado en este trabajo es el descriptivo. La investigación se desarrolla en tres etapas para poder describir la visión de la excelencia del desarrollo profesional que tienen los profesores de inglés así como los indicadores que ellos consideran válidos para evaluar su propio desempeño. Se realizan análisis cuantitativos y cualitativos de la información recogida.Excelencia, desarrollo profesional, enseñanza del Inglés, indicadores, evaluación.Ítem Sostenibilidad de las film commissions. Análisis de medidas medioambientales, económicas y sociales para una producción audiovisual sostenible(VisualCOM, 2025-07-01) Rajas Fernández, Mario; Paz Gil, Iria; Gértrudix Barrio, ManuelLas film commissions incorporan directrices de sostenibilidad en la producción de cine y televisión. Como organizaciones que gestionan localizaciones de rodaje y conectan la industria audiovisual con el turismo y el patrimonio cultural, las film commissions ofrecen servicios audiovisuales para producir obras que cumplan con criterios de sostenibilidad en sus tres dimensiones: medioambiental, social y económica. Este estudio analiza los objetivos, indicadores, iniciativas y recursos de las film commissions españolas en materia de desarrollo sostenible. Estas acciones incluyen directrices y recomendaciones, catálogos de buenas prácticas, calculadoras de huella de carbono, acciones formativas, labores de comunicación y difusión y formación para diferentes profesionales del sector audiovisual. Los principales resultados y conclusiones confirman que, a pesar de ciertos avances, es necesario seguir avanzando en materia de legislación, estandarización de criterios de sostenibilidad, apoyo financiero a las producciones sostenibles y, sobre todo, transferencia de conocimientos y habilidades para los profesionales del futuro.Ítem La representación de la mujer en el imaginario musical: análisis de los videoclips más vistos en el contexto internacional y español(VisualCOM, 2025-04-12) Canorea-Tiralaso, Héctor; Paz-Gil , Iria; Rajas Fernández, MarioEl videoclip es el formato audiovisual más consumido en la actualidad, siendo especialmente popular entre los más jóvenes. Estos vídeos ofrecen contenidos repletos de estereotipos, entre ellos de género. Por tanto, estudiar la imagen que se ofrece de la mujer dentro de estas piezas resulta de especial interés. De esta forma, se han analizado los 300 videoclips más vistos a nivel mundial, así como los 300 vídeos musicales de origen español con más reproducciones en YouTube. Tras el análisis realizado se ha podido confirmar que la imagen ofrecida en los videoclips de la mujer está más sexualizada y denigrada que la de los hombres.Ítem Hacia una comunicación integral: Aplicaciones de la obra de Ken Wilber al ecosistema mediático actual(EAPG (EURASIA ACADEMIC PUBLISHING GROUP), 2023-10-09) Rajas Fernández, Mario; Rajas Fernández, LuisIniciamos una aproximación general a la obra de Ken Wilber en relación con la posible formulación de una teoría integral de la comunicación que aborde, sin dejar ningún espacio sin cubrir, los grandes interrogantes que plantean las transformaciones existenciales que estamos viviendo los habitantes del universo digital. Las posibilidades del modelo AQAL de Wilber para analizar los medios de comunicación actuales son fascinantes en aspectos como las fake news o la inteligencia artificial.Ítem Técnicas neurocientíficas aplicadas a estímulos audiovisuales: análisis cognitivo-emocional de anuncios de Heineken durante la COVID-19(Asociación científica ICONO 14, 2022-06-09) Rajas Fernandez, Mario; Sutil Martín, Lucía; Canorea Tiralaso, HéctorA través de técnicas de neurociencia aplicadas al análisis de contenidos audiovisuales, se estudian cuatro anuncios de la marca Heineken producidos durante la pandemia de COVID-19. El objetivo principal es detectar qué respuestas cognitivas y emocionales suscitan los distintos estímulos en treinta sujetos y evaluar si la construcción narrativa de los anuncios funciona a la hora de transmitir sus mensajes publicitarios en imágenes y sonidos. Para ello, tras la realización de un análisis textual preliminar, se emplean herramientas de registro de microexpresiones faciales y de eye tracking y se completa la investigación con un test de recuerdo. Los resultados señalan la predominancia de las emociones de alegría y sorpresa, así como la presencia de otras emociones (asco, desprecio, tristeza) en momentos puntuales. A su vez, se constata que los tipos de imágenes que más captan la atención del espectador son las que incluyen acciones llamativas, emocionantes, ilustrativas de la pandemia (mascarilla, saludo a distancia, etc.) o que introducen un texto escrito en pantalla. Igualmente, se observa que el producto Heineken en sus variadas materializaciones (botella, grifo, imagotipo, etc.) solo es percibido de forma destacada en el encuadre si hay una acción dramática que lo acompaña o subraya. Por el contrario, la figura humana (los ojos, sobre todo), es el componente visual en el que se centra predominantemente la mirada de los sujetos. Por último, los resultados del test de recuerdo coinciden con el resto de análisis respecto a la intensidad de las emociones que les han producido los estímulos.Ítem Coinheritance of polymorphic alleles of PIEZO1, G6PD and HBB enhances protection against malaria(Elsevier, 2025-06-20) Abad, P.; Pérez-Benavente, S.; Pérez-Luz, S.; Fobil, J. N.; Kitenge Luyenga, B.; Kazadi Mukendi, A.; Puyet, A.; Diez, A.; Luzzatto, L.; Azcárate, I. G.; Bautista, J. M.Malaria has exerted potent selective pressure on the human genome over millennia and has been a significant force in shaping human evolution. We have determined in 424 individuals living in malaria-hyperendemic areas in Ghana and in the Democratic Republic of Congo, the genotypes at the loci PIEZO1, G6PD, HBB, and PKLR. By qPCR we have also estimated P. falciparum parasitemia in all these subjects. We found that 41% of individuals tested had one protective variant, 20.5% two variants, 6.4% three variants, and 0.7% four variants. We have confirmed that Pz_E756del, G6pd A-, and HbS are associated with lower parasite density. The highest allele frequency was that of Pz_E756del, approaching 0.2, and we found that it is in linkage disequilibrium with Pz_E750Q. While overall malaria prevalence did not differ significantly among the groups, non-pregnant individuals with multiple protective alleles had lower rates of high-density parasitaemia, suggesting an additive effect of these variants against severe malaria infection, while pregnancy showed different allele protection profile. The high frequency of individuals carrying two or more protective polymorphisms might have implications for malaria transmission and parasite reservoir maintenance. Thus, the significance of additive or possibly synergistic effects of multiple protective genes co-existing in the same person deserves further investigation.Ítem Hybrid laser-micro-arc oxidation techniques for enhanced biocompatibility and surface modification of Ti13Nb13Zr alloy in biomedical applications(Elsevier, 2025-03-31) Sypniewska, Joanna; Szkodo, Marek; Majkowska-Marzec, Beata; Pawłowski, Łukasz; Mirowska, Aleksandra; Ryl, Jacek; Mielewczyk-Gryn, Aleksandra; Gaweł, Łukasz; Martínez-Campos, Enrique; Fernández-Hernán, Juan PabloThe research conducted in this paper focuses on an innovative hybrid surface modification technique for Ti13Nb13Zr alloys, combining an Nd: YAG laser treatment process with a micro-arc oxidation (MAO) technique. The work aimed to increase biocompatibility and improve surface properties, crucial for biomedical applications. By introducing zinc and sodium ions into the ceramic films and manipulating the duration of the MAO process, significant improvements in surface morphology, corrosion resistance, and cytocompatibility were achieved. Surface topography analyses showed a dual modification effect, increasing roughness, isotropy, and wettability properties, which are important for improving osteointegration and cell proliferation. Corrosion resistance tests confirmed a clear increase in corrosion resistance for hybrid-modified samples, especially those with a hydroxyapatite-enriched MAO ceramic layer. Cytocompatibility tests showed increased cell adhesion and proliferation, highlighting the benefits of combining laser and MAO techniques. These results indicate the great potential of the hybrid method in terms of improving the functionality and durability of bone and dental implants.Ítem Influence of hybrid modification on functional properties of a commercial bio-titanium alloy Ti6Al4V(Elsevier, 2025-07-05) Sypniewska, Joanna; Szkodo, Marek; Majkowska-Marzec, Beata; Pawłowski, Łukasz; Fernández-Hernán, Juan Pablo; Martínez-Campos, EnriqueAlthough Ti6Al4V is widely used, its surface still needs improvement for medical applications. Here alloy was modified by a two-step process: laser treatment followed by micro-arc oxidation (MAO). This aimed to create a rough surface enriched with bioelements such as sodium, phosphorus, and zinc. SEM analysis revealed a complex but uneven surface, suggesting good potential for further hybrid surface development. Laser treatment improved the alloy’s stability and corrosion resistance. Wettability tests confirmed full hydrophilicity, a key factor in cell response. Notably, the single- and double-modified samples without nZnO showed the best biological performance, likely due to their high hydrophilicity.Ítem Functionalized graphene – Modified sol-gel coatings: Controlling the degradation of bioresorbable AZ31 magnesium alloy for biomedical applications(Elsevier, 2025-05-21) Fernández-Hernán, J.P.; Alves, M.M.; Taryba, M.G.; Montemor, M.F.; Torres, B.; Rams, J.The fast degradation of Mg alloys requires strategies tailored for the controlled delay of corrosion. Pristine hybrid silica sol-gel coatings (SG) and sol-gel coatings doped with 0.05 wt% COOH-functionalized graphene nanoplatelets (SG + GNP) were successfully generated on AZ31 magnesium alloy substrates by dip-coating. The physicochemical properties and the anticorrosion behaviour of the coatings were evaluated by Field Emission Gun – Scanning Electron Microscope (FEG-SEM), Energy Dispersive Spectroscopy (EDS), ASTM D3359 standard adhesion tests, scanning vibrating electrode technique (SVET), scanning ion-selective electrode technique (SIET), and electrochemical impedance spectroscopy (EIS). Both coatings improved the behaviour in terms of localized and general corrosion, with the SG + GNP coating offering better protection. The presence of the COOHfunctionalized graphene nanoplatelets enhanced the mechanical properties of the sol-gel coating, improving their adhesion resistance and making them less brittle, and therefore offering a better barrier effect and anticorrosion protection. Also, high Ca–P accumulations were found after corrosion tests on both sol-gel coatings, indicative of in-vitro biocompatibility. Thus, SG + GNP coatings can enhance corrosion resistance and biocompatibility of magnesium alloys for biomedical applications.Ítem A Review of Additive Manufacturing of Biodegradable Fe and Zn Alloys for Medical Implants Using Laser Powder Bed Fusion (LPBF)(MDPI, 2024-12-19) Limón, Irene; Bedmar, Javier; Fernández-Hernán, Juan Pablo; Multigner, Marta; Torres, Belén; Rams, Joaquín; Cifuentes, Sandra C.This review explores the advancements in additive manufacturing (AM) of biodegradable iron (Fe) and zinc (Zn) alloys, focusing on their potential for medical implants, particularly in vascular and bone applications. Fe alloys are noted for their superior mechanical properties and biocompatibility but exhibit a slow corrosion rate, limiting their biodegradability. Strategies such as alloying with manganese (Mn) and optimizing microstructure via laser powder bed fusion (LPBF) have been employed to increase Fe’s corrosion rate and mechanical performance. Zn alloys, characterized by moderate biodegradation rates and biocompatible corrosion products, address the limitations of Fe, though their mechanical properties require improvement through alloying and microstructural refinement. LPBF has enabled the fabrication of dense and porous structures for both materials, with energy density optimization playing a critical role in achieving defect-free parts. Fe alloys exhibit higher strength and hardness, while Zn alloys offer better corrosion control and biocompatibility. In vitro and in vivo studies demonstrate promising outcomes for both materials, with Fe alloys excelling in load-bearing applications and Zn alloys in controlled degradation and vascular applications. Despite these advancements, challenges such as localized corrosion, cytotoxicity, and long-term performance require further investigation to fully harness the potential of AM-fabricated Fe and Zn biodegradable implants.Ítem Toponimia y paisaje en Fuentecén, Guzmán y La Sequera de Haza, tres territorios de la Ribera del Duero burgalesa (España)(2025) Palomar-Anguas, María Pilar; Polo-Romero, AlbertoEl estudio de la toponimia en Fuentecén, Guzmán y La Sequera de Haza forma parte de un proyecto centrado en estos tres territorios de la provincia de Burgos y pone en valor el patrimonio inmaterial en un contexto social que ya no es aquel en el que se creó y mantuvo. El despoblamiento del ámbito rural conlleva un conocimiento de topónimos cada vez menor, por lo que la pervivencia de estos depende de su registro cartográfico y documental. La investigación se realiza mediante revisión bibliográfica y análisis cartográfico, partiendo del Nomenclátor de Castilla y León, de la cartografía disponible y del trabajo de campo. Previamente se esboza el contexto geográfico y en los resultados se analizan los topónimos con breves referencias a su etimología y significado. Su clasificación en trece campos semánticos permite su tratamiento estadístico y comparativo entre las tres áreas mencionadas, tanto de la densidad toponímica global de cada una, como la de algunos campos de su clasificación. Con ello se evidencia como la orografía, la hidrología y las características socioeconómicas de cada población han condicionado el predominio de determinados campos semánticos. La aportación realizada por informantes de Fuentecén equivale al 44,4% del total de topónimos extraídos en dicha localidad, que viene a ser un discreto nivel de la pervivencia de este patrimonio cultural, habida cuenta del éxodo de su población desde la segunda mitad del siglo pasado, y de los cambios en el modo de vida.Ítem Regional house price convergence in Spain during the housing boom(Sage Journals, 2016) Blanco Jiménez, Francisco José; Martín Barroso, Víctor; Vázquez Vicente, GuillermoThe aim of this paper is to identify convergence clubs in house prices among Spanish regions over the period 1995:Q1 to 2007:Q4 and to investigate which factors are responsible for club formation. Employing a novel regression-based convergence test proposed by Phillips and Sul (2007) we find that regional house prices do not converge to a common trend, which confirms the existence of some degree of segmentation in the Spanish housing market. The research results support the existence of convergence clubs, indicating that Spanish regions form four separate groups that converge to different house price levels. Results of an ordered logit model suggest that differences in population growth, size of the rental market, initial house supply and geographical situation have played a crucial role in determining club membershipÍtem Club convergence in Latin America(De Gruyter, 2015) Martín Barroso, Víctor; Vázquez Vicente, GuillermoThis paper assesses the convergence in per capita income of a group of 18 Latin American countries over the period 1950–2008. We employ a novel regression based convergence test proposed by (Phillips, P. C. B., and D. Sul. 2007. “Transition Modeling and Econometric Convergence Tests.” Econometrica 75: 1771–1855). Contrary to most previous studies, our approach allows us to examine for evidence of club convergence and enables to endogenously identify groups of countries that convergence to different equilibria. Our results support the existence of convergence clubs, indicating that Latin American countries form three separate groups within which income per capita dispersion is decreasing over time. Moreover, results from an ordered logit model suggest that differences in institutions quality among Latin America countries have played a crucial role in determining club membershipÍtem Planes estratégicos de energía de los gobiernos a nivel global: pasado, presente y futuro(Fondo de Cultura Económica, 2025-07) Moreno-Brieva, FernandoLa adopción de estrategias energéticas a largo plazo es esencial para marcar el rumbo de las economías. En este sentido, varios estudios e informes se han centrado en temas como el uso de energías renovables, la eficiencia energética, la pobreza energética, la captura de carbono y la innovación. Sin embargo, es necesario trazar un mapa de la situación global de los planes estratégicos de energía adoptados por los países y centrarse en los que están en vigor. La metodología adoptada en este estudio es cuantitativa y parte de la recopilación de todos los planes estratégicos de energía disponibles en la base de datos de la Agencia Internacional de la Energía entre julio y octubre de 2023. Las principales conclusiones muestran que la eficiencia energética, las energías renovables, así como la investigación, el desarrollo y la innovación tecnológica son los temas dominantes en casi todos los continentes. A su vez, los países de Europa son los que más temas han incluido en sus planes estratégicos de energía, aquí destacan Austria, Dinamarca, Irlanda, España y el Reino Unido. No obstante, también sobresalen los Estados Unidos y Japón.Ítem Latin America’s lithium drive: International trade perspective in the global lithium battery value chain(Springer Nature, 2025-04-10) Moreno-Brieva, Fernando; Valdés-Valenzuela, Elicel; Basilio Ruiz de Apodaca, OihanaLithium batteries are very important for the energy transition because they allow stabilizing the energy obtained from various renewable sources, which tend to suffer large fluctuations in their energy contribution. Besides, they are widely used in a variety of high-tech products. However, the literature has scarcely addressed the importance of the analysis of the leading Latin American countries from a relative and inter-annual perspective of international trade. Hence, the purpose of this study is to analyze the international trade participation of the main Latin American economies in different components of the global lithium battery value chain, considering their share and relative evolution at the regional level, as well as their global positioning. Our findings show that Latin American countries have little presence in this value chain and that most of its main countries have a constant presence in lithium battery imports, but not in exports, although, most of these countries have experienced a positive evolution in exports and a negative evolution in imports.Ítem Augmented Reality for Learning Algorithms: Evaluation of Its Impact on Students’ Emotions Using Artificial Intelligence(MDPI, 2025-07-10) Gómez-Ríos, Mónica; Paredes-Velasco, Maximiliano; Velázquez-Iturbide, J. Ángel; Quiroz Martínez, Miguel ÁngelAugmented reality is an educational technology mainly used in disciplines with a strong physical component, such as architecture or engineering. However, its application is much less common in more abstract fields, such as programming and algorithms. Some augmented reality apps for algorithm education exist, but their effect remains insufficiently assessed. In particular, emotions are an important factor for learning, and the emotional impact of augmented reality should be determined. This article inquires about the impact on students’ emotions of an augmented reality tool for learning Dijkstra’s algorithm. This investigation uses an artificial intelligence tool that detects emotions in real time through facial recognition. The data captured with this tool show that students’ positive emotions increased significantly, statistically surpassing negative emotions, and that some negative emotions, such as fear, were considerably reduced. The results show the same trend as those obtained with psychometric questionnaires, but both positive and negative emotions registered with questionnaires were significantly greater than those registered with the artificial intelligence tool. The contribution of this article is twofold. Firstly, it reinforces previous findings on the positive emotional impact of augmented reality on students. Secondly, it shows an alignment of different instruments to measure emotions, but to varying degrees.Ítem Tack-cure vs conventional polymerization methods: A systematic review on resin composite cements´properties(Elsevier, 2025-06-18) D´Alessandro, Carlo; Baena, Eugenia; Josic, Uros; Maravic, Tatjana; Mancuso, Edoardo; Ceballos , Laura; Mazzoni , Annalisa; Blatz, Markus B; Breschi, Lorenzo; Mazzitelli, ClaudiaObjectives: This systematic review aimed to address the following research question: "What is the effect of tack-cure compared to conventional polymerization methods on the resin composite cements' properties?". Data and sources: A comprehensive literature search was conducted across electronic databases, including Clarivate Analytics' Web of Science, Cochrane Library, EMBASE, PubMed, Scopus, and ProQuest, without language or publication date restrictions. In vitro studies comparing tack-cure (TC) with conventional polymerization methods (light-cure, LC, and/or self-cure, SC) were included. The risk of bias was assessed using the QUIN tool for in vitro studies. This systematic review was reported in accordance with PRISMA guidelines. Results: Sixteen relevant articles were included in this systematic review. According to the QUIN tool, 1 study was ranked as "low risk," 12 studies as "medium risk," and 3 studies as "high risk" of bias. The resin cements evaluated were mainly dual-cure (DC) adhesive/multistep and self-adhesive/one step materials, whereas only 1 universal cement was investigated. Overall, TC provided comparable or superior mechanical properties compared to LC, and consistently outperformed SC alone. Furthermore, TC facilitated excess cement removal and improved interface quality. However, outcomes varied depending on the type of resin cement, polymerization protocol, and evaluation method. Conclusions: TC can provide mechanical properties and interface quality comparable or superior to conventional polymerization methods, while facilitating excess cement removal. Clinical significance: TC appears to be a clinically useful technique that enhances handling without adversely affecting resin composite cements' properties. Clinicians should always follow manufacturers' instructions and consider cement-specific characteristics