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DATASET of the paper “The shallow arch: A step towards bridges styling in the early 19th century”
No full textThe dataset presents an investigation about the evolution of the relationship rise-to-span in the 19th centur
Towards a Comprehensive Evaluation Model in Museums and Heritage Spaces in Castilla y León (Spain)
No full textLas nuevas ecologías de aprendizaje exigen evaluar con garantías de calidad, de inclusión y perspectiva integral las intervenciones educativas en museos y espacios patrimoniales −en adelante MyEP− en contextos situados. El objetivo del estudio es evaluar de forma integral las intervenciones educativas en 8 MyEP de Castilla y León (España) para conocer cómo se realizan a los grupos escolares visitantes. Se sigue un diseño de estudio de caso, de tipo evaluativo con enfoque crítico en educación y método mixto, donde los datos cuantitativos se construyen sobre la recolección de los datos cualitativos. Se aplica un procedimiento en fases donde se construye un instrumento tipo cuestionario para la evaluación integral de la intervención educativa en MyEP, validado por expertos y con vocación de replicabilidad. Los resultados informan de carencias en los modelos de evaluación educativa en MyEP, de déficit en la formación pedagógica y didáctica de las educadoras y educadores, de escaso vínculo curricular de las actividades, de inestabilidad laboral de las plantillas, y de modelos de gestión neoliberales. Se concluye la necesidad de evaluar multidimensionalmente las relaciones educativas entre MyEP y escuela para poner en el centro a las personas, diversificando y enriqueciendo las formas de enseñar y aprenderThe new learning ecologies require evaluating educational interventions in museums and heritage spaces −hereinafter MyEP −in situated contexts with guarantees of quality, inclusion and a comprehensive perspective. The objective of the study is to comprehensively evaluate the educational interventions in 8 MyEPs in Castilla y León (Spain) to understand how they are carried out for visiting school groups. A case study design is followed, of an evaluative type with a critical focus on education and mixed method, where quantitative data is built on the collection of qualitative data. A procedure is applied in phases where a questionnaire-type instrument is constructed for the comprehensive evaluation of the educational intervention in MyEP, validated by experts and aimed at replicability. The results report deficiencies in the educational evaluation models in MyEP, a deficit in the pedagogical and didactic training of the guides, little curricular link of the activities, labor instability of the staff, and neoliberal management models. The need to multidimensionally evaluate the educational relationships between MyEP and school is concluded to put people at the center, diversifying and enriching the ways of teaching and learnin
Ingénieurs et développements sociaux, scientifiques et technologiques bien connus
No full textEl proyecto Engineers & STEM (https://projects.merlot.org/engineers&stem) es una herramienta gratuita y abierta para profesores, que vincula los usos comunes de la sociedad y la práctica de la ingeniería. Su objetivo es contribuir a la promoción de las disciplinas STEM (ciencia, tecnología, ingeniería y matemáticas), destacando la contribución de los ingenieros a la creación de desarrollos sociales, científicos y tecnológicos muy conocidos. El sitio web Engineers & STEM es el principal resultado del proyecto y está disponible en MERLOT (www.merlot.org), un repositorio abierto de recursos educativos. Los materiales proporcionan un conjunto de casos de estudio que se pueden utilizar para tareas en el aula o discusiones abiertas dentro del marco de cualquier programa de educación STEM
Identification of Phenolics and Structural Compounds of Different Agro-Industrial By-Products
No full textThis study provides a comprehensive analysis of the composition of onion peels, tomato peels, and pistachio green hulls, with a focus on their structural and bioactive compounds. Onion peels, regardless of cultivar, were found to be rich in quercetin and its derivatives, along with other flavonoids and pectin. Tomato peels emerged as a notable source of naringenin (0.52 mg/g in ethanol extract) and rutin (0.24 mg/g in water extract) and showed an unexpectedly high lignin content, comprising nearly 50% of their structural components. Pistachio green hulls demonstrated a high extractive content (63.4 g/100 g), 73% of which were water-soluble. Protocatechuic acid, rutin, and quercetin derivatives were the dominant phenolic compounds in the water extract, while luteolin was most abundant in the ethanol extract. Regarding structural composition, tomato peels and pistachio green hulls shared similarities, exhibiting a high lignin content (53.4% and 33.8%, respectively) and uronic acids (10–15%). In contrast, onion peels were characterized by high levels of glucans (around 38%) and galacturonic acid (33%). The insights from this study pave the way for the design of sustainable and efficient extraction processes, enabling the sequential recovery of valuable bioactive compounds and promoting the valorization of these agro-industrial by-products. Additionally, onion and tomato peels were evaluated as sources of pectin using two extraction methods: conventional acid water extraction and subcritical water extraction. The results revealed significant differences in the pectin composition (53–68% galacturonic acid) and degree of esterification (79–92%) compared to commercial pectin (72.8% galacturonic acid and 68% esterification), highlighting the influence of the raw material and extraction method on the final properties of pectin.This work was supported by the Agencia Estatal de Investigación (AEI) though projects PID2020- 116716RJ-I00/AEI/10.13039/501100011033, PID2022-136385OB-I00/AEI/10.13039/501100011033, and TED2021-129311B-I00. Junta de Castilla y León (JCyL) and European Regional Development Fund (ERDF) [grant number BU027P23] are gratefully acknowledged. Ó. Benito-Román’s contract was funded by AEI through project PID2020-116716RJ-I00 and R. Melgosa’s contract was funded by a Beatriz Galindo Research Fellowship [BG20/00182]
Combating violence against migrant women: A transnational analysis and best practices for operator in Spain, Italy and Portugal
No full textEsta obra es una síntesis de los productos finales del proyecto 360 REWIN, Resilient immigrant Women interventions for Inclusion, y recoge la compilación de los resultados en inglés y en español. Se trata de un informe transnacional que analiza las principales líneas de intervención socio-psicoeducativa con mujeres migrantes en España, Italia y Portugal. Para ello, el documento hace una síntesis desde el trabajo de campo con mujeres migrantes y profesionales que las acompañan. Se incorporan indicaciones legislativas, tendencias desde la bibliografía, lecciones aprendidas y un análisis de una selección de buenas prácticas en los tres países.
Esta guía destaca las percepciones de las mujeres migrantes sobre la violencia, sus necesidades generales y de salud, y las barreras que enfrentan. También se incluyen estrategias para combatir la violencia, el papel del mediador, la importancia de la capacitación de los profesionales y el marco referencial institucional y legislativo. Finalmente, se presentan recomendaciones para apoyar a las mujeres migrantes, promoviendo su integración y bienestar en la sociedad
COVID-19, Autism, and Isolation: Good Practices for Continuity of Care During the Pandemic
No full textThe COVID-19 pandemic, and particularly the associated conditions of isolation, has detrimental effects on the mental health of the population that are not yet fully understood. Variables such as individual stress, anxiety, and tolerance to uncertainty may play a role in the ability of individuals to adapt to the isolation situation. In this context, it is necessary to pay attention to population groups that present difficulties in adapting to this situation of uncertainty, such as people with autism. This narrative review of the evidence has as objectives to explore (1) the effect that the autism community has experienced as a result of the lockdown and isolation due to COVID-19; and (2) opportunities for health, educational, and social services providers to support people with autism and their families in isolation in an attempt to ensure that specialized interventions continue as much as possible. We map suggestions regarding information delivery, time management at home, recognition and emotional expression, and some suggestions to maintain support with service providers
Suitability of Raw-Crushed Wind-Turbine Blade for Use in Concrete Production
No full textComunicación presentada en: 4th fib International Conference on Concrete Sustainability 2024, durante los días 11-13 de septiembre en Guimaraes (Portugal)A lot of wind farms are nearing the end of their lifespan, and the residue generated by their wind turbine blades demands urgent attention. This
study suggests a novel recycling process, where dismantled wind turbine blades
are transformed into a raw material for concrete production. The process involves a pretreatment of raw cutting of the blade walls, without separating the
components, crushing, and sieving. This results in a waste material that has
been called Raw-Crushed Wind-Turbine Blade (RCWTB). In this research, the
main characterizations of the residue were studied, as well as the potential of
their components to serve as both fibers and aggregates in concrete. Moreover,
to achieve suitable workability, a customized mixture design and a mixing procedure in five stages were developed for concrete containing up to 6%
RCWTB. The main preliminary outcomes include that the addition of RCWTB
improved flexural strength of concrete and reduced its carbon footprint. Although a slight decrease in compressive strength was observed, the results were
suitable for construction purposes and this initial approach seems to provide a
viable solution for recycling wind turbine blades.This research work was supported by the Spanish Ministry of Universities, MICINN, AEI, EU, ERDF and NextGenerationEU/PRTR [grant numbers PID2023-146642OB-I00; 719 10.13039/501100011033; TED2021-129715 B–I00]; the Junta de Castilla y León (Regional Government) and ERDF [grant number UIC-231; BU033P23
Determination of nicotine in e-liquids by electrochemical generation of surface-enhanced Raman scattering substrates
No full textQuantitative methods using surface-enhanced Raman scattering (SERS) for analysis in complex matrices are very
attractive due to the high sensitivity and selectivity of this technique. In this work, a novel time-resolved elec
trochemical surface-enhanced Raman scattering (TR-EC-SERS) analytical method has been developed for the
determination of nicotine in e-liquids of electronic cigarettes. One of the main challenges of SERS is its inherent
lack of reproducibility. Here, this limitation was mitigated by employing an electrochemical pre-treatment step
to generate a homogeneous distribution of silver nanoparticles (Ag-NPs) on a silver screen-printed electrode. The
enhanced Raman scattering induced by the Ag-NPs enabled the detection of nicotine at nanomolar levels. The
high sensitivity of the method allowed the quantitative analysis of diluted e-liquid samples, mitigating potential
interferences from other components present in these complex matrices. Moreover, TR-EC-SERS, coupled with
parallel factor analysis (PARAFAC), demonstrated the capability of trilinear spectroelectrochemistry data not
only to detect nicotine but also to identify potential interfering compounds without prior knowledge of their
spectral signatures. This multivariate approach offers significant potential for the detection of outliers in complex
samples.Ministerio de Ciencia e Innovacion ´ and Agencia Estatal de Investigacion ´ (MCIN/AEI/10.13039/501100011033, PID2020-113154RBC21, PID2023-149188OB-I00) and FEDER, UE, Junta de Castilla y Leon ´ and European Regional Development Fund (Grant number: BU036P23), Ministerio de Ciencia, Innovacion ´ y Universidades (RED2022-134120-T) are gratefully acknowledged for funding this work. L.R. acknowledges Ministerio de Ciencia e Innovacion ´ and Agencia Estatal de Investigacion ´ (MCIN/AEI/ 10.13039/ 501100011033, PIS2020-113154 GB-C21) for the predoctoral contrac
Guía técnica para la cualificación de circuitos integrados y componentes electrónicos para el sector industrial. Procesos, estándares y metodología
No full textEl libro “Guía técnica para la cualificación de circuitos integrados y componentes electrónicos para el sector industrial” parte de la necesidad de dar a conocer un sector puntero y estratégico como es el sector de los semiconductores desde el enfoque del proceso de cualificación. Esto se ha debido principalmente a que, el proceso de cualificación permite confirmar la viabilidad tecnológica de todo el proceso de creación de un semiconductor. Es decir, proceso de cualificación permite estudiar todos los aspectos funcionales, técnicos y tecnológicos de un circuito integrado o un componente electrónico. Los procesos de cualificación en el sector de semiconductores están estandarizados. Este libro detalla estos estándares, identificando todas las consideraciones clave a tener en cuenta, para poder desarrollar esta tarea con éxito
Life cycle assessment of concrete with wind turbine blade waste: A real case study
Get PDFEurope is among the most important wind-energy producers in the world, yet a commonly accepted solution is to be found towards Wind Turbine Blade Waste (WTBW) from wind turbine blades at the end of their lifespan. In this research, Life Cycle Assessment (LCA), regarding Global Warming Potential (GWP) and Abiotic Depletion Potential for fossil fuels (ADPf), was first used to study landfilling, incineration and mechanical recycling of WTBW. Mechanical recycling was highlighted as the best option, as incineration showed higher impacts (x4.5 GWP, x1.2 ADPf) and landfilling is forbidden by the European Union. Afterwards, WTBW management was combined with concrete production by considering both incineration and mechanical recycling, WTBW being used as aggregate replacement (2%, 5%, and 10% vol.) to create fiber-reinforced concrete. Mechanical recycling of WTBW always yielded lower results (-28.3% GWP, -5.9% ADPf), even when including larger transportation impacts in a real case in Castilla y León (-28.0% for GWP, -5.4% for ADPf), a region in Spain among the top producers of WTBW in Europe in the next 5-10 years, which is in need for a recycling strategy to follow. Lastly, four mechanical recycling plants would be needed in Castilla y León to minimize WTBW transportation impacts, thus the average environmental damage being reduced by 0.2% GWP and 0.3% ADPf per cubic meter of ready-to-cast concrete. These key findings emphasize the benefits of mechanically recycling WTBW and its potential when combined with concrete production through LCA, yielding promising results that can be implemented in different regions around the world.This research work was supported by the Spanish Ministry of Science, Innovation and Universities (MICIU), AEI, EU, ERDF and NextGenerationEU/PRTR [grant numbers PID2023-146642OB-I00; 10.13039/501100011033; TED2021-129715 B–I00; FPU21/04364]; the Junta de Castilla y Leon ´ (Regional Government) and ERDF [grant number UIC-231; BU033P23; BU066-22]; and, finally, the University of Burgos [grant number SUCONS, Y135. GI]