Suitable Granular Road Base from Reclaimed Asphalt Pavement

The present study has been conducted within the framework of two research projects: one project in collaboration with the company GUAMAR S.A., entitled “Viability of using RAP as granular base in linear constructions”; and another project with acronym “ECO-WAVE” and titled “Development of Sustainable and anti-vibration sub-ballast for railway” (PID2022-142915OB-IOO), funded by the Ministry of Science, Innovation and University of Spain (MICIU/AEI/10.13039/ 501100011033) and by the European Union (FEDER).The granular bases commonly used in the construction of road infrastructure projects often require a high consumption of raw materials. The potential utilization of recycled materials, specifically Reclaimed Asphalt Pavement (RAP) derived from road asphalt pavement demolition, emerges as a promising sustainable advantage for infrastructure projects, considering its potential environmental and cost benefits in other layers of the structure. In this context, this research proposes a feasibility study on the use of RAP as a granular base layer, supported by an advanced laboratory analysis that includes a range of tests simulating the in-service conditions as well as a full-scale demonstration of the material behavior under static and dynamic loads. Various design variables, such as different gradations and binder content, are considered. The results demonstrate that, despite having discontinuous gradation and smaller aggregate sizes than those commonly applied in natural base layers, the evaluated recycled materials exhibit a higher load-bearing capacity and resistance to permanent deformation than the reference materials commonly used as granular bases. Notable enhancements of up to 30% in elastic modulus, coupled with reductions of around 20% in permanent deformations, have been documented using the asphalt cement potential in the old pavement.MICIU/AEI/10.13039/ 501100011033 PID2022-142915OB-IOOEuropean Union (FEDER

Attitudes towards people living with HIV/AIDS through the EAPVVS-E: A descriptive analysis in nursing students

Abstract Background Despite advances in antiretroviral treatment, stigma towards people with HIV/AIDS continues to exist. Nursing students, as future key players in health care, must advocate for the elimination of stigma through education, empathy and the creation of a supportive environment. This holistic approach is crucial to improving their quality of life and moving towards the eradication of HIV/AIDS. Aim To identify nursing students' attitudes towards people living with HIV or AIDS and their relationship with sociodemographic and academic-cultural variables of the participants. Design A cross-sectional study was performed. Settings The research was carried out in the Nursing Degree of the Faculty of Health Sciences of the Ceuta Campus of the University of Granada. Participants Convenience sampling was used to recruit 284 students of the degree in Nursing. Methods Data were collected voluntarily and on an anonymous basis, using the “Attitudes Towards People Living with HIV/AIDS Scale in Nursing Students”. Bivariate and multivariate analyses were performed. Results Factors 1 (Professional Practice), 2 (Social Integration) and 3 (Partner and Family) exhibited mean scores considered to be favourable attitudes (>4 points). In contrast, Factor 4, called Benevolent Stigma, had a mean score of 3.68 ± 0.97. Religious beliefs, academic year, sexual orientation, academic practices and age are considered influential variables in the different factors. Conclusions Nursing students present attitudes with favourable scores. However, these results highlight the importance of influencing the different factors, especially in the second year of the Bachelor's Degree in Nursing in our sample. Thus, an educational intervention in this area would be necessary to reinforce the values of humanised care.Enfermerí

Film Education and Francoism: Proposal of Historical Source Analysis in Teaching Formation

Introduction: This article focuses on a teaching experience conducted in the Fundamentals of Social Sciences (Bachelor’s in Pre-school Teaching) program during the 2023-2024 academic year. It involved several group projects in which students had to analyze movies made during and after the Franco dictatorship from a historical perspective. The main objective is that, from this analysis, the students reflect on democratic memory and teaching practice. Method: The methodology was based on cooperative learning and audiovisual literacy. Through the analysis of a film and the presentation of the results to the rest of the class, students had to reflect on their present and understand these connections. Active viewing allowed students to delve into the Franco dictatorship, as well as working on historical thinking. Results: The positive results are shown in the high percentage of participation as well as the application of theoretical knowledge in the historical source analysis by the students. This way, it is expected that future teachers will be able to approach education from a democratic perspective, recognizing the importance of debate and the treatment of social issues as an essential practice of democratic citizenship. Conclusions: In this sense, working with audiovisual sources not only increases audiovisual literacy, an essential competence in the current context, but also allows working on critical thinking and active viewing.Introducción: El presente artículo se centra en una experiencia didáctica realizada en la asignatura de Fundamentos de Ciencias Sociales del Grado en Maestro en Educación Infantil durante el curso 2023-2024. En ella, se realizaron diferentes proyectos grupales en el que el alumnado debía analizar cine realizado por/sobre la dictadura franquista desde una perspectiva histórica. El objetivo fundamental es que, desde dicho análisis, el alumnado reflexionase sobre la memoria democrática y la práctica docente. Método: La metodología didáctica se centró en el aprendizaje cooperativo y la alfabetización audiovisual. A través del análisis de una película y la exposición de los resultados al resto de la clase, el resto de la clase debía reflexionar sobre su presente y comprender dichas conexiones. Este visionado activo permitió profundizar en el conocimiento de la dictadura franquista y se trabajaba el pensamiento histórico Resultados: Los resultados fueron positivos, obteniendo un alto porcentaje de participación y una oportunidad para aplicar el conocimiento teórico al análisis de fuentes históricas. De esta forma, se espera que las futuras docentes puedan abordar la educación desde una perspectiva democrática y reconociendo la importancia del debate y el tratamiento de problemáticas sociales como práctica esencial de la ciudadanía democrática. Conclusiones: En este sentido, el trabajo con fuentes audiovisuales no solo aumenta la alfabetización audiovisual, competencia esencial en el contexto actual, sino que también permite trabajar el pensamiento crítico y el visionado activo

Sulfide mineralogy of igneous basic rocks (ophites) from the external zone of the Betic Cordillera

This research has been supported by the project PROYEXCEL_00705 “Metallogeny of Cobalt in the Betic Cordillera” (grant no. P21-00705), funded by the Consejería de Transformación Económica, Industria, Conocimiento y Universidades de la Junta de Andalucía. The article processing charges for this open-access publication were covered by the CSIC Open Access Publication Support Initiative through its Unit of Information Resources for Research (URICI).The Triassic sedimentary rocks of the external zone of the Betic Cordillera in southern Spain host abundant igneous basic rocks (“ophites”) metamorphosed in the greenschist facies. Investigation based on high-resolution transmission electron microscopy (HRTEM) reveals magmatic sulfides intimately intergrown with primary silicates (pyroxene, plagioclase and olivine), consisting of pyrrhotite (FeS to Fe7S8; monoclinic C2/c polytype 4C) and pentlandite ((FeNi)9S8; cubic Fm3m), bounded by tetragonal I2d chalcopyrite (CuFeS2). Whole-rock and clinopyroxene geochemical data suggest that Fe–Ni–Cu sulfides crystallized from melt droplets segregated by immiscibility from transitional-alkaline magmas, after their fractional crystallization and volatile oversaturation within crustal conduits developed during intraplate rifting. In contrast, hydrothermal sulfides are pyrite (FeS2) and/or chalcopyrite associated with secondary silicates (chlorite, epidote, saussurite, prehnite, sericite and quartz). Porous pyrite (cubic Pa3) hosts nanodomains of pyrrhotite (monoclinic C2/c polytype 4C and orthorhombic Cmca polytype 11C) and orthorhombic Pnnm marcasite (FeS2), evidencing disulfide formation via coupled Fe loss and S addition in pyrrhotite due to reaction with high-fS2 and high-fO2 fluids at < 300 °C. Tetragonal I2d chalcopyrite replacing pyrite also preserves nanodomains of pyrrhotite as well as of pyrite  marcasite, suggesting reaction of pre-existing Fe sulfides with Cu transported by low-temperature (∼ 200–100 °C) acidic-to-neutral fluids. Additionally, inclusions of sphalerite (ZnS), galena (PbS) and vaesite (NiS2) in pyrite and chalcopyrite spotlight metal remobilization during hydrothermal alteration, which is further confirmed by the crystallization of cobaltite coronas (CoAsS) around pyrite. Our new results contribute to the current debate of the full sequence of processes operating in ore-forming mafic systems.Junta de Andalucía P21-00705Unit of Information Resources for Research (URICI

Mitigation of heavy metal soil contamination: A novel strategy with mycorrhizal fungi and biotransformed olive residue

This study investigates a novel phytoremediation approach in, employing a synergistic treatment involving arbuscular mycorrhizal fungi (AMF) and biotransformed dry olive residue (DOR) to address heavy metal (HM) contamination in soils. The research focused on soil from the Guadiamar Green Corridor area (Aznalc´ollar), characterized by bar soils with residual metal pollution (Co, As, Cr, Cd, Pb, Ni, Cu, and Zn). The findings highlight a significant improvement in soil physicochemical properties following the application of DOR, including a 3-unit increase in pH (from 4 to 7), an increase in CaCO₃ content from nearly 0 to 4, and a rise in organic matter content (from 0.92 % to 1.88 %). Additionally, the activity of all four enzymatic activities studied -dehydrogenase, β-glucosidase, phosphatase, and urease- was markedly enhanced, leading to improved biological properties. These changes led to a subsequent increase in vegetative response, as reflected in a 273 % rise in biomass, a 41 % increase in stomatal conductance, and a 47 % improvement in photosystem efficiency. Although mycorrhizal inoculation provided moderate benefit, the native species, Rhizoglomus sp. (Azn), emerged as the most effective, achieving a mycorrhization percentage of 28 % and an 80 % increase in root biomass compared to other treatments when combined with DOR. This study proposes an innovative, circular economy-driven approach to address diffuse pollution sources in the studied area by recommending the use of DOR and inoculation with sp. This approach proves superior in both soil and plant systems. Additionally, employing native inoculants and agricultural by-products, the research not only contributes to the valorization of local resources but also promotes economic growth while supporting environmental conservation efforts.Project RTI 2018–094327-B-I00 (Spanish Ministry of Science and Innovation)Project E-RNM- 444-UGR20 (Operating Research Program FEDER 2014- 2020)Universidad de Granada/CBUASpanish Ministry of Science and Innovation [RTI2018–094327-B-I00]Operating Research Program FEDER2014–2020 [E-RNM-444-UGR20

Intertextuality Theory Between the Quran and the Bible: A Study in Quranic Models

The theory of intertextuality is one of the modern theories in the study and analysis of literary texts. Its fundamental idea is that every text hides behind it previous texts that contributed to its formation. Therefore, research in this theory is based on the principle of comparing texts to discover aspects of agreement, influence, and impact. Applying this theory to religious texts has been a distant goal for Western and Arab researchers, but it faces many methodological obstacles, especially concerning the Qur’an. The comparative research in the theory of intertextuality between the Qur’an and the Bible has revealed methodological and thematic paradoxes when applied to the contents and narratives

Metal-free graphitic carbon nitride/carbon-dots composites: unveiling mechanochemical synthesis opportunities

This project has received funding from the European Union′s Horizon2020 research and innovation programme under the Marie Sklodowska-Curie Cofund Grant Agreement No. 945361 and the project PID2022-139014OB-I00/SRA (State Research Agency)/10.13039/501100011033.501100011033. Funding for open access charge: Universidad de Granada/CBUA.Environmentally friendly, metal-free photocatalysts offer a promising alternative to traditional metal-based semiconductors. In this study, we synthesised graphitic carbon nitride (CN) photocatalysts decorated with carbon dots (CDs) using two distinct methods: a hydrothermal approach and a solvent-free mechanochemical extrusion method. The resulting nanocomposites were thoroughly characterised for their physical, chemical, and optical properties and evaluated for photocatalytic activity in the selective oxidation of benzyl alcohol. Results revealed that the synthetic approach significantly impacted the composites' morphological and optical characteristics, affecting their photocatalytic performance. A light–matter interaction modelling study was further conducted to explore the relationship between optical properties and catalytic behaviour, offering valuable insights into the structure–function relationship of these novel photocatalysts. As a result, we present an alternative scheme to traditional synthesis and catalysis methods based on the use of high temperature and pressure conditions, which provides an energetically positive and environmentally friendly approach.European Union′s Horizon2020 Marie Sklodowska-Curie Cofund 945361(State Research Agency)/10.13039/501100011033.501100011033 PID2022-139014OB-I00/SRAUniversidad de Granada/CBU

Surgical complications of cardiac implantable electronic devices: a systematic review and meta-analysis

Aim: To identify the most common complications that occur after the implantation of a permanent pacemaker, and to estimate their prevalence. Method: systematic review and meta-analysis. Selection criteria: quantitative primary sources, written in English, no age restriction, published between 1 January 2018 and 1 March 2025. Information sources: This 30 systematic review is based on a search of the PubMed scientific database, using descriptors from the MESH thesaurus in the following search equation: “Pacemaker, artificial AND Surgery AND Postoperative complications”. Risk of bias: Studies were assessed following the Mixed Methods Appraisal Tool (MMAT) guidelines. Results synthesis: descriptive analysis was used for the systematic review and random effects meta-analysis were performed. Results: Pacemaker implantation is a fairly common intervention, but it is not free of complications. The most frequent are pacemaker pocket infection, contusion or haematoma at the insertion site, painful shoulder and displacement of the generator or electrodes. Conclusion: It is important to take into account the patient's medical history and comorbidities, in order to match the device and its upkeep to the patient's characteristics, in order to minimise the risk of complications

A guide to the analysis of didactic suitability of probability textbook lessons

The aim of this article is to buid a Guide to the Analysis of Probability Textbook Lessons for secondary education (students aged 12-14), using the framework of Didactic Suitability. The facets, components and indicators of the didactic suitability construct are applied to categorize and organize didactic-mathematical knowledge on teaching and learning of probability in secondary education derived from research on the subject. The guide constitutes a systemic structure of descriptors (gradable and recognizable features in the textbook lesson) associated with the different components of partial suitability, which can facilitate the teacher's decision-making on how to use a textbook lesson in the classroom to optimise the instructional process.MICIU/AEI/10.13039/501100011033 - ERDF/EU (PID2022-139748NB-I00)Junta de Andalucía (Research Group FQM-126)Government of Aragón (Group S60_23R