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Impact of Steam-Exploded Feather Incorporation on the Biodegradation Performance of Renewable Biocomposites
No full textThe increasing environmental concerns regarding plastic waste, especially in
agriculture, have driven the search for sustainable alternatives. Agricultural plastics, such
as mulching films and greenhouse covers, are heavily reliant on petrochemical-derived
materials, which persist in the environment and contribute to long-term pollution. This
study explores the use of biodegradable biocomposites made from steam explosion-treated
chicken feathers and various polymer matrices to address these issues. Chicken feathers, a
waste by-product of the poultry industry, present an excellent biodegradability as a result
of the steam explosion treatment and contain nitrogen, potentially enhancing soil fertility.
The biocomposites were characterized by thermal stability, mechanical properties, and
biodegradability, and ecotoxicity assessments were carried out studying the incorporation
of feathers into the soil. Results showed that the incorporation of treated chicken feathers
increased the water absorption capacity of the composites, promoting faster disintegration
and biodegradation. In particular, biocomposites made with polyhydroxyalkanoates and
Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) exhibited a significant increase in degradation
rates, from 3–10% in the first month for pure matrices to 40–50% when reinforced
with treated feathers. Meanwhile, those made from polylactic acid showed slower degradation.
Furthermore, the addition of feathers positively influenced crop growth at low
concentrations, acting as a slow-release fertilizer. However, high concentrations of feathers
negatively affect plant growth due to excess nitrogen. These findings highlight the potential
of poultry feathers as a valuable, sustainable filler for agricultural bioplastics, contributing
to waste valorization and environmentally friendly farming practices.This project has received funding from the Bio-based Industries Joint Undertaking under the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 101023306. The JU receives support from the European Union’s Horizon 2020 research and innovation programme and the Bio-based Industries Consortium
Voting record of the UNGA Resolutions on “Necessity of ending the economic, commercial and financial embargo imposed by the United States of America against Cuba”
No full textBenzo[f]indazoles: A new class of glow dyes for the generation of versatile fluorophores
No full textThe surge of photonics as key enabling technology for lighting has driven the search of new chart of modern applied fluorophores. In this line, we recently found that a set of compounds previously synthesized by us and pertaining to the family of benzo[f]indazoles, were able to absorb light and convert it into glow blue fluorescence. Prompted by these findings, we came interested in exploring their viability as versatile fluorophores for bioimaging. To this aim, in this work we present a comprehensive study of the electronic, structural, electrochemical and photophysical properties of this new library of dyes in solution and solid-state under mild and hard irradiation regimes. We intend to understand the molecular structure photophysics relationship and estimate the strengths and weaknesses of these dyes as potential fluorescent probes for bioimaging or other kind of lightdriven applications. One of the main outcome of this study is that the photonic performance of the herein reported benzo[f]indazole-based dyes surpasses coumarines, considering as benchmark in the same spectral window, yielding brighter and long lasting emission even under intense and prolonged illumination.Ministerio de Ciencia, Innovación y Universidades MICIU/Agencia Estatal de Investigaci´on AEI (PID2020-118422GB-I00 and PID2020-114755 GB-C33 funded by MCIN/AEI/10.13039/501100011033)
Basque Government (IT1639-22 and IT1558-22)
Univeristy of Basque Country (EHU-N23/48 and EHU-N23/30
Eutanasiarako eskubidea Espainiar Estatuan
No full textEutanasia arautzeko Lege Organikoaren onarpenak izugarrizko aurrerapausoa suposatu du Espainiar Estatuko ordenamendu juridikoan, lehen aldiz onartu delarik hiltzeko laguntza eskatzeko eta jasotzeko eskubidea. Arau honek, eutanasia aktibo zuzena despenalizatzeaz gain, eskubide subjektibo berri bat sortu zuen, testuinguru zehatz batean pertsonei beraien bizitzari amaiera ematea ahalbidetzen diena. Azterlan honetan legeak aurreikusitako hiltzeko prestazioa, eskatzen diren baldintzak eta prozedura aztertuko dira.
Gainera, edozein eutanasia mota arautzerako orduan, beharrezkoa da oinarrizko eskubide konstituzionalekin izan ditzakeen bateragarritasunak eta gatazkak aztertzea. Horrela, lege organikoak bizitzarako eskubidearekin, askatasun eskubidearekin eta pertsonaren duintasunarekin duen lotura landuko da. Izan ere, gai honek eztabaida doktrinal eta jurisprudentzial sakona sortu du azken urteotan, lan honetan, Auzitegi Konstituzionalak 2023. urtean eman zuen erantzuna aztertuko delarik.
Ikuspegi zabalago bat izateko asmoz, nazioartean eutanasia aktibo zuzenaren inguruko legedi desberdinak aztertuko dira, Espainiar Estatuko araudiarekin konparatuz. Hala nola, Herbehereak, Belgika eta Kolonbiako lege sistemak
Obtaining more accurate complete arch implant digital scans with the aid of a geometric pattern: A dental technique
No full textA technique to obtain more accurate complete arch implant digital scans and virtual casts is described. In order to obtain complete arch implant digital scans with greater accuracy, short-span intraoral digital scans are superimposed with the aid of a geometric pattern. Therefore, the technique takes advantage of the accuracy of intraoral scanners to obtain digital scans of reduced spans. Two virtual designs of the geometric pattern have been made available online: one for maxillary arches and one for mandibular arches. From these virtual designs, new virtual designs of geometric patterns of different sizes and shapes can be created to better fit different arch forms and implant positions.Supported by the University of the Basque Country (UPV/EHU) [grant GIU21/051], Spain; and by the Gipuzkoa Provincial Council [grant 2023-CIEN-000029–01], Spai
El imaginario del agua en la cultura griega
No full textEl agua es un elemento esencial en la cultura griega y también en su imaginario colectivo. En este artículo se realiza un estudio de ese elemento desde una perspectiva mitológica, centrando la atención en las características atribuidas al agua en el imaginario griego y en las principales divinidades asociadas a los elementos hidrográficos. El estudio realizado pone de relieve la riqueza simbólica del agua y ayuda a comprender cómo entendieron los griegos el mundo.Ayuda para la recualificación del sistema universitario español para 2021-2023 financiada por la Unión Euro-pea-Next Generation EU (RECUALI21/03). Grupo de investigación IdeoLit (GIU21/003) y proyecto CBL 22ENCI, ambos financiados por la UPV/EHU
La novedad epigráfica: el paisaje en la Lusitania de época augustea
No full textWithin the comparative geographical framework outlined by the conference, this study focuses on the prouincia of Lusitania, established during the Principate of Augustus. Based on an analysis of the earliest Latin inscriptions from this transitional period, the aim is to understand the impact of epigraphic practices on the daily life of this newly established province. Examining these early inscriptions will allow for an exploration of public inscriptions, particularly those related to the monumentalization of the ciuitates, urban development, or commemorations, as well as the organization of its rural territories. Additionally, private contexts, such as funerary texts, will also be considered. This comprehensive overview will help characterize the emerging epigraphic landscape of Roman Lusitania.; Dentro del ámbito geográfico comparativo propuesto por el congreso, el presente estudio se centra en la prouincia de Lusitania establecida durante el Principado de Augusto. Basándose en el análisis de las primeras inscripciones latinas de este periodo de transición tan importante, el objetivo es comprender el impacto de la práctica epigráfica en el día a día de la joven provincia. El estudio de estos inicios proporcionará la oportunidad de abordar sucesivamente las inscripciones públicas, especialmente aquellas relacionadas con la monumentalización de las ciuitates y la actividad edilicia o los homenajes, así como la organización de sus territorios en el entorno rural, además de los epígrafes que se generalizan en un contexto privado como los textos funerarios. Este panorama permitirá caracterizar el incipiente paisaje epigráfico de la Lusitania romana
Familia ezbeharrengatiko baimenaren bilakera eta iresmena: Langile Estatutuaren 37.3 b) artikuluaren azterketa juridikoa, 5/2023 Errege Lege Dekretuaren ondoren
No full textGradu Amaierako Lan honek Langileen Estatutuaren 37.3 b) artikuluan araututako baimenaren idazketa berria aztertzen du, 5/2023 Errege Lege Dekretuaren bidez barneratua. Baimen horren bidez, langileei lanetik irteteko eskubidea ematen zaie ahaide eta beste subjektu eragile baten istripu edo gaixotasun larriengatik, ospitaleratzeagatik edo etxean atseden hartzea eskatzen duen ebakuntza kirurgikoagatik. Lanaren helburu nagusia, baimen horren norainoko juridikoa, jurisprudentzian duen interpretazioa eta haren aplikazio praktikoan sortzen diren gatazkak aztertzea izango da. Horretarako, doktrina eta jurisprudentzia-azterlan bat egin da, Auzitegi Gorenaren, Justizia Auzitegi Nagusien, eta Auzitegi Nazionalaren epai garrantzitsuen analisiarekin osatuta. Emaitzek erakusten dute irizpide komunak daudela baimeneko zenbait kontzeptu interpretatu eta aplikatzeari dagokionez. Hala ere, indarrean dagoen araudian oraindik ere legezko hutsuneak daude, eta hutsune horiek interpretazio malgua eskatzen dute, langileen eskubideen babes eraginkorra bermatzeko. (eusk.
Reducción de la jornada laboral: un análisis comparativo de impactos y modelos internacionales
No full textEsta investigación analiza el impacto de la reducción de la jornada laboral en la productividad, el bienestar y el empleo, a partir de diferentes metodologías. Para ello, se realiza un análisis de los proyectos piloto en Islandia, Reino Unido y España, así como de los modelos legislativos en Francia y Bélgica, incluyendo la recopilación y el análisis de estudios académicos e informes internacionales para identificar patrones y tendencias
Synthesis and pharmacological characterization of a novel cannabinoid receptor 1 antagonist
No full textEste estudio se centró en el desarrollo de nuevos compuestos que bloqueen los receptores cannabinoides del cerebro, con el objetivo de evitar los efectos psiquiátricos adversos que causan los bloqueadores actuales. Los investigadores sintetizaron 11 nuevos compuestos y seleccionaron uno, llamado UVI3502, como el más prometedor.
UVI3502 mostró una buena afinidad por los receptores cannabinoides, especialmente por el CB1, que es el más abundante en el cerebro. Se comprobó que actúa como un antagonista, bloqueando la acción de los agonistas cannabinoides. Además, estudios por ordenador indicaron que su forma rígida y plana lo hace adecuado para unirse a la versión inactiva del receptor.
En resumen, UVI3502 es un nuevo compuesto con potencial para bloquear de forma más segura los receptores CB1, y podría ser útil como herramienta para estudiar el sistema endocannabinoide o para desarrollar tratamientos contra trastornos relacionados con este sistema.This work was supported by grants from the Basque Government IT975-16 and IT1454-22 to the “Neurochemistry and Neurodegeneration” consolidated research group; by Instituto de Salud Carlos III through the project PI20/00153 (cofunded by European Regional Development Fund “A way to make Europe”); by MCIN/AEI/10.13039/501100011033 (PID2021-125946OB-I00, RYC2022-036457-I); and by BIOEF through the project BIO22/ALZ/010 funded by Eitb Maratoia. I.B.d.T. was the recipient of an Investigo fellowship funded by the European Union-Next Generation EU. G.P.-C. is the recipient of a University of the Basque Country predoctoral fellowship