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Evaluation of homogeneous and heterogeneous catalytic strategies for furfural production from sugar-derived biomass in a solvent-free green pressurized reaction media (subcritical water-CO2)
Get PDFA green organic, solvent-free, subcritical water-CO2 (subW-CO2) system was proposed for the production of furfural from the main hemicellulose's sugar, xylose. Despite subW itself showed potential for furfural generation due to its catalytic properties under subcritical conditions; when CO2 was added into the system as pressurization agent, higher yields were reached due to its effect as a Brønsted acid when dissolved in water. Furthermore, its combination with different Lewis acidic catalysts showed a synergistic effect, further improving furfural yield. In a batch configuration, five homogeneous and four heterogeneous catalysts were tested at 180 °C and 5.5 MPa and compared for the first time in a subW-CO2 reaction medium. Different furfural production paths were determined for the two catalysts types, with higher xylose isomerization rates to xylulose when homogeneous trivalent metal catalysts were used. CrCl3 and Nafion NR50 resin were selected as best catalysts from each of the groups due to higher furfural production rates (51.9 ± 0.9 % yield/h) and higher furfural selectivity (60.9 %), respectively. Furthermore, Nafion NR50 catalytic activity remained unchanged after 10 runs at 180 °C. The green subW-CO2 system furfural yields were comparable to water-organic solvent biphasic ones, proving to be a promising green alternative.This work was supported by the Agencia Estatal de Investigación (AEI), Ministerio de Ciencia e Innovación (MICINN) and Next Generation UE (Plan de Recuperaciónn, Transformación y Resiliencia) [grant numbers TED2021-129311B–I00 and PDC2022-133443-I00 ] and the Junta de Castilla y León (JCyL) and the European Regional Development Fund (ERDF) [grant number BU050P20 ]. Benito-Román post-doctoral contract was funded by AEI through project PID2020–116716RJ-I00 . P. Barea predoctoral contract was funded by JCyL and the European Social Fund (ESF) by ORDEN EDU/ 1868/2022 , de 19 de diciembre
El papel de la ciencia ciudadana en la ciencia abierta. Y viceversa
No full textConferencia inaugural de: VIII Jornadas BUCLE sobre Bibliotecas Universitarias, " Las Bibliotecas Universitarias en la Ciencia Abierta: Intercambio de Experiencias en la Gestión y en la Transferencia de la Investigación". Burgos, 10 y 11 de octubre de 2024
Catalytic hydrothermal conversion of lignocellulosic biomass to valued-added organic acid
No full textPóster presentado en: 5th Ibero-American Congress on Biorefineries (5-CIAB). October 2-4, 2024, Jaén (Spain)This work was supported by the Spanish Research Agency (AEI) [grant numbers PID2022-136385OB-I00, PID2020-116716RJ-I00, TED2021-129311B-I00, PDC2022-133443-I00] and the Junta de Castilla y León (JCyL) and the European Regional Development Fund (ERDF) [grant number BU027P23]. A. E. Illera postdoctoral contract was funded by JCyL through BU027P23. R. Melgosa contract was funded by a Beatriz Galindo Research Fellowship [BG20/00182]. Benito Román post-doctoral contract was funded by AEI through project PID2020–116716RJ-I00. H. Candela Gil contract was funded by TED2021-129311BI00. P. Barea predoctoral contract was funded by JCyL and the European Social Fund (ESF) [ORDEN EDU/1868/2022, de 19 de diciembre]
El retrato y la moda en la Casa de Austria: el uso de la imagen como elemento didáctico
No full textLa propuesta de trabajo de fin de máster que se presenta a continuación tiene como principal objetivo poner en práctica todos los conocimientos adquiridos en el Máster Universitario en profesor de Educación Secundaria Obligatoria y Bachillerato, Formación Profesional y Enseñanza de Idiomas. Partiendo del retrato y la moda en la Casa de Austria, se va a elaborar una situación de aprendizaje que integre la metodología activa del ABP (Aprendizaje Basado en Proyectos) y el uso de las redes sociales como herramienta didáctica. Va a estar destinada a la asignatura de Historia del Arte de 2º de Bach. Como punto de referencia para la elaboración de ésta se ha empleado la actual ley de educación, la LOMLOE, concretamente el Real Decreto 243/2022 y el Decreto 40/2022 de Castilla y León. Finalmente, la implementación de esta SA durante el periodo de prácticas ha proporcionado una serie de resultados y conclusiones que nos permite analizar la eficacia del tema planteado, así como el uso del ABP y de la red social TikTok en el proceso de enseñanza-aprendizaje.The main objective of the master's thesis proposal presented below is to put into practice all the knowledge acquired during the Master's Degree in “Teaching Compulsory Secondary Education and Higher Secondary Education, Vocational Training and Language Teaching". Starting from the portrayal and fashion features related to the House of Austria (also known as House of Habsburg), we will develop a learning plan that integrates the active methodology of PBL (Project Based Learning) and the use of social media as a didactic tool. It is intended to be part of the Art History course curriculum within the 2nd year of Higher Secondary Education (Bachillerato). The current education law, the LOMLOE, using the Royal Decree 243/2022 and Decree 40/2022 of Castilla y León, have been used as a reference point for its development. Finally, the implementation of this Learning Plan during an internship period provided a series of results and conclusions that allow us to analyze the effectiveness of the topic, as well as the use of PBL and social media platforms like TikTok as part of the teaching-learning process
El sistema vilicario romano en la Región de Murcia: modos de vida y explotación
No full textEn este trabajo se plantean dos propósitos. En primer lugar y, de forma general, conocer uno de los pilares básicos de la organización del mundo rural romano. Hablamos de la villa como epicentro de obtención y aprovechamiento de los más variados recursos naturales. Se estudiará su origen y posterior implantación en la Hispania romana, tipologías, características principales y producción asociada. En segundo lugar, trasladaremos todo lo anterior al territorio del sureste peninsular hispano, particularizando lo visto en ejemplos de villas de la Región de Murcia, con el fin de obtener una visión de conjunto de estas forma de ocupación rural que fueron residencia y negocio a la vez dentro del ager Carthaginensis.Two purposes are proposed in this work. First of all, and in general, know one of the basic pillars of the organization of the Roman rural world. We talk about the town as the epicenter of obtaining and using the most varied natural resources. Its origin and subsequent implementation in Roman Hispania, typologies, main characteristics and associated production will be studied. Secondly, we will transfer all of the above to the territory of the southeastern Hispanic peninsula, particularizing what we have seen in examples of towns in the Region of Murcia, in order to obtain an overview of these forms of rural occupation that were residence and business to the once inside the ager Carthaginensis
The configuration of a new heritage. The wall as a canvas in the rural murals by the artists Sojo and Brea from Extremadura (Spain)
No full textArtículosSe analiza la estética del “Street Art” como patrimonio asociado a un entorno predominantemente rural en la región española de Extremadura. Para ello se eligen varios aspectos: dos artistas locales, responsables de buena parte de los murales contemporáneos en el entorno; el uso de telas como leit-motiv en una pared a la manera de lienzo y, finalmente, la evolución estética de sendos creadores. Se descubre cómo, aun como arte efímero, se asocia la tela a la práctica antropológica de las mujeres rurales y se reivindica como postura política frente a la denominada “España vaciada”.The aesthetics of ‘Street Art’ as a heritage associated with a predominantly rural environment in the Spanish region of Extremadura is analysed. Several aspects are chosen for this purpose: two local artists, responsible for a large part of the contemporary murals in the area; the use of canvas as a leit-motiv on a wall; and, finally, the aesthetic evolution of the two creators. We discover how, even as ephemeral art, the canvas is associated with the anthropological practice of rural women and is claimed as a political stance in the face of the so-called ‘empty Spain’
Biography and artistic career of the architect Miguel de Abaría (ca. 1610-1681): review and new information
No full textArtículosMiguel de Abaría fue un prolífico arquitecto y cantero guipuzcoano vecino de Beasain, registrado en las décadas centrales del siglo XVII principalmente en obras religiosas y con diferente grado de participación. Su carrera muestra el dominio tanto de la cantería gótica como de los postulados del Clasicismo, a los que incorporó elementos del barroco decorativo en sus últimas actuaciones. En este trabajo pretendemos examinar lo conocido sobre este artífice y aportar datos desconocidos a su biografía y trayectoria profesional.Miguel de Abaría was a prolific Guipuzcoan architect and stonemason from Beasain. His activ-ity is known in the central decades of the 17th century in numerous religious projects and a few civil. His career shows his mastery of the Gothic stonework and the postulates of Classicism, to which added elements of the Decorative baroque in his latest artworks. In this article we intend to examine what is already known with new documentary information about his personal and professional career
ePOLANT: an Electronic Portfolio for the Self-Assessment of Language Teachers’ Competences
No full textEsta tesis doctoral analiza los documentos e instrumentos europeos
para la enseñanza de idiomas, tales como en Marco Común Europeo de
Referencia para las Lenguas (MECR) y su Volumen Complementario, el
Portfolio Europeo de Lenguas (PEL), y los destinados a mejorar la calidad y
homogeneización de la formación del profesorado de lenguas, principalmente
el Portafolio Europeo para Futuros Profesores de Idiomas (EPOSTL por sus
siglas en inglés).
El EPOSTL ha demostrado ser un instrumento muy útil para el fomento
de capacidades tan necesarias en el profesorado como el pensamiento crítico
y la práctica reflexiva mediante la autoevaluación de las competencias que
los futuros profesores de idiomas deben adquirir y desarrollar y promoviendo
el aprendizaje y el trabajo autónomo. Sin embargo, su diseño dificulta su
utilización en la formación del profesorado.
El portafolio digital diseñado en esta tesis: ePOLANT (electronic
PORtfolio for LAnguage Teachers) incorpora las aportaciones más destacadas
del EPOSTL para conseguir un instrumento para la formación del profesorado
de lenguas que desarrolle la práctica reflexiva, el aprendizaje autónomo, la
autoevaluación y sirva como portafolio del alumno-docente. Además, el
diseño de ePOLANT ofrece soluciones para los problemas encontrados en la
aplicación del EPOSTL, y que solucionaron otros proyectos para actualizarlo
y/o mejorarlo. En consecuencia, ePOLANT es una herramienta práctica y fácil
de usar, adaptable a la realidad actual en enseñanza idiomas, o de un
contexto educativo en particular, permite ver el progreso del futuro profesor
en el desarrollo de sus competencias docentes y, finalmente, promueve y
facilita la colaboración y comunicación entre los futuros profesores, sus
formadores y sus tutores en los centros de prácticas.The Council of Europe has always considered language learning a pillar
in the construction of Europe, for this reason, several instruments have been
sponsored with the purpose of promoting and improving the quality of the
learning and teaching of additional language. Some of those documents are
used worldwide to establish and certify the levels of competence individuals
have attained; however, that has not been the case of teaching competences.
The instruments developed to contribute the homogenisation of language
teacher education have not been so widely known or applied. One of them,
The European Portfolio for Student Teachers of Languages (EPOSTL) tool for
the self-assessment of language teaching competences future teachers
(student teachers) of languages are expected to develop.
This doctoral dissertation analyses the EPOSTL in detail to understand
its sources, objectives and features and reviews the literature on its uses and
implementations. Once the utility of the EPOSTL for the promotion of critical
thinking, reflective practice, among other skills, has been determined, an
electronic tool for the self-assessment of language teaching competences,
ePOLANT (electronic Portfolio for Language Teachers) has been designed
incorporating the most relevant strengths of the EPSOTL whilst including new
features which solve the shortcomings encountered in the EPOSTL. ePOLANT
is a website specifically designed for student teachers to self-assess their level
in the development of the competences. It also enables teacher educators to
include the appropriate competences, chart their progress and provide
feedback in a much easier way than the EPOSTL did. The results of the case
study where ePOLANT has been implemented have been very positive, in
terms of its usability, practicality and utility. Consequently, future
developments and implementations of ePOLANT are proposed.Doctorado en Humanidades y Comunicació
The EU Taxonomy, sustainability reporting and financial institutions: understanding the elements driving regulatory uncertainty
No full textThe EU Taxonomy Regulation relies on sustainability reporting to channel
financial resources to sustainable activities. Financial institutions are key actors in
the Taxonomy setting because they operate as financial intermediaries and have a
dual role as both users and preparers of sustainability information. This paper
investigates the perceived uncertainty that characterizes the sustainability reporting
regulatory environment of a particular type of financial institution, banks, to
identify the elements that generate that perception. Drawing on literature on
regulatory uncertainty, this paper conducts a case study of the Spanish banking
industry informed by interviews and complemented by other data sources. The
analysis unveils two significant elements driving regulatory uncertainty: the
Taxonomy’s lack of clarity regarding the operationalization of its measures and
rules and the timeline and oversight of its implementation. The study also
documents that the Taxonomy induces uncertainty in the non-regulatory
environment due to its unpredictable impact on banks’ reputation and market
competition, as well as to the changes it provokes in banks’ internal structures and
processes to address regulatory requirements. As the perception of regulatory
uncertainty represents an impediment to compliance, understanding the elements
giving rise to it can help to mitigate such perception and facilitate the fulfillment
of regulatory demands. This investigation offers implications for policy and
practice to facilitate the production of the sustainability information banks must
disclose according to the EU Taxonomy, particularly the green asset ratioNicolas Garcia-Torea and Mercedes Luque-Vílchez acknowledge the financial support provided by the Spanish Ministry of Science and Innovation (TED2021-129520B-I00), Agencia Nacional de Investigación (PID2021-122389OB-I00) and Junta de Castilla y León (BU069P20 y BU029P23)