BUSCADOR RECOLECTA

El archivo contiene los datos recogidos al finalizar un ciclo de talleres de lectura fácil con adolescentes migrantes en la Biblioteca Municipal Iván de Vargas (Madrid) en mayo de 2024. Se recogieron en hojas impresas y se volcaron manualmente a una hoja de cálculo para su análisis. Los participantes totales fueron 13 personas. La encuesta muestra una valoración muy positiva, especialmente entre quienes leyeron en voz alta. Se destacaron como aspectos más valorados el trabajar en la biblioteca y con personas distintas a sus profesoras habituales - es decir, aspectos relacionados con la participación más que con el valor académico y formativo del taller. En cambio, quienes no leyeron en voz alta, respondieron menos preguntas, mostraron menor motivación y dieron una valoración menos positiva del taller. Datos adicionales sobre el contexto en el que se generaron los datos y su interpretación están disponibles en la respectiva publicación, titulada "La promoción de la lectura para adolescentes migrantes en un proyecto de aprendizaje y servicio: análisis y evaluación de la experiencia" y publicada en la revista RIBES (2025).

The aim of the Teacher Learning for European Literacy Education (TeL4ELE) project was to support literacy educators in five European countries to become experts in genre based literacy pedagogy and in turn support teachers to improve learning outcomes for all students especially those who are educationally disadvantaged. Based on the external evaluation of the project1 this aim was fulfilled. Survey and interview data showed high levels of engagement with the pedagogy on the part of both educators and classroom teachers. Ninety seven per cent2 stated that, in their view, the pedagogy offered a completely different approach to reading and writing compared to those that are generally used in school. Moreover almost all teachers perceived it had had an impact on their students’ understanding of how language operates in different texts to make meaning and on their students’ reading and writing. Ninety two per cent wished to continue with the approach citing the following reasons as motivation: improvement in student learning, empowering nature of pedagogy, enjoyed working with the approach. Most significantly students’ assessment scores based on their pre and post reading and writing scores showed that all students (drawn from the 97 participating classes) had improved by an average of 14.3 % on their writing and 9% on their reading (in almost half of all cases in less than 5 weeks).

The effects of multi-walled carbon nanotubes (MWCNTs) incorporation and polycaprolactone (PCL) post-treatment on the environmental-assisted cracking behaviour of a plasma electrolytic oxidation (PEO) coated AZ31B Mg alloy were elucidated in this study. Slow strain rate tensile (SSRT) experiments were carried out in simulated body fluid (SBF) for the bare material and different coating systems with and without MWCNTs and PCL overlay. Electrochemical impedance spectroscopy (EIS) and microscopic examinations (SEM and optical) were also conducted to reveal the role of corrosion on the mechanical response. In spite of the significant positive influence of the PEO coatings (with and without MWCNTs) on the bio-electrochemical behaviour of the AZ31B alloy, the environmental-assisted cracking performance was only marginally improved. Furthermore, PEO+MWCNTs/PCL coating system increased the fracture strain of the specimens by 7% compared to the uncoated specimens. Based on the SEM and optical micrographs, hydrogen embrittlement was suggested as the main cause of failure of the coated specimens under the in vitro slow strain rate test conditions.

This study addresses the fundamentals of corrosion inhibition of AA2024 alloy by tannic acid (TA), a Cr-free and eco-friendly natural product. To this end, the AA2024 alloy was immersed in NaCl solution (50 mM) with different TA concentrations (0.1–10 mM) for 7 days. Surface (SEM, Raman, and SKPFM) and electrochemical analyses (EIS, PDP, and SVET) revealed mixed inhibition after 1 day of immersion in TA solution. Long-term immersion tests in TA solutions produced a tannate-rich oxide film on the surface. The films with low tannate content (formed in 0.1 and 1 mM TA) showed the highest stability and corrosion resistance.

Esta base de datos está configurada por resultados de encuesta sobre daltonismo y entrevistas a alumnado daltónico del Grado en Bellas Artes, todo dentro de la Facultad de Bellas Artes de la UCM.

Experimental data published in the article Is there direct photoentrainment in the goldfish liver? Wavelength-dependent regulation of clock genes and investigation of the Opsin 7 family, Journal of Comparative Physiology-A, 2024.

Plasma electrolytic oxidation (PEO) has been targeted as an eco-friendly alternative technology to conventional chromic acid anodizing (CAA) for corrosion protection of aluminium alloys in the aircraft industry. However, conventional PEO technology implies high energy consumption. Flash-PEO coatings (≤10 μm) produced in short treatment times (≤ 5 min) constitute a feasible way to overcome this limitation. Nevertheless, the long-term corrosion resistance is compromised, thus requiring novel sealing post-treatments. The present work studies the effect of stand-alone hybrid sol-gel (HSG) and Ce-doped hybrid sol-gel (HSG-Ce) coatings as a sealing post-treatment to evaluate the long-term corrosion resistance of Flash-PEO coatings on aluminium alloy (AA) 2024-T3. The characterization of the PEO, HSG, and HSG-Ce coatings was performed by scanning electron microscopy, X-ray diffraction, water contact angle, dry adhesion tests (ISO 2409), optical profilometry and Fourier transform infrared spectroscopy. The corrosion behaviour was assessed by electrochemical impedance spectroscopy up to 21 days (3.5 wt% NaCl). Active corrosion protection was assessed by immersion tests of artificially scratched coatings. Present findings reveal that low-energy-cost Flash-PEO coatings were successfully formed on AA2024-T3 alloy. Both HSG and HSG-Ce coatings were homogeneously formed on Flash PEO coating. Regarding the corrosion resistance, HSG-Ce showed significant scratch protection during 21 days of immersion in 3.5 wt% NaCl. The results suggest that, while the release of Si and Ce from the coating provided corrosion protection, nitrate release promoted localized corrosion phenomena in the scribe. This was associated with the preferential pitting corrosion phenomena at the Cu-rich intermetallic compounds instead of forming a thick and stablenitrate-rich passive layer.

The objective of this work is to understand the plasma electrolytic oxidation (PEO) treatment and electrochemical behaviour of a Ti6Al4V alloy manufactured by a laser powder bed fusion additive manufacturing (AM) technique known as direct metal laser sintering (DMLS). Ca and P-containing coatings were produced with short time (<120 s) PEO treatments (also termed as Flash-PEO) obtaining 3–10 μm-thick coatings on both the AM alloy and a conventional counterpart. Subsequently, the electrochemical behaviour of the bare and treated alloys was assessed in a modified α-MEM solution via potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The fine α-lamellar microstructure of the AM alloy with small β-phase particles at the interlamellar spaces was seen to advance the onset of sparking promoting faster growth of PEO coating in comparison to the conventional alloy. Flash-PEO coatings enhanced the corrosion protection of both conventional and AM alloys, the thinnest (<3 μm) coatings providing up to three times greater protection. AM Ti6Al4V was found to be susceptible to localized crevice corrosion which could be assigned to the high grain boundary density. Flash-PEO treatments, even as short as 35 s, were sufficient to successfully prevent it.