Femtosecond Laser Removal of Antifouling Paints on Glass Fibre Reinforced Plastic Used in Maritime Industry

[Abstract] In this work we investigated the use of ultrashort laser pulses to clean antifouling paint from samples of glass fibre reinforced polymer (GFRP), a composite material widely used in shipbuilding. Samples were prepared with two types of paint, self-polishing and hard matrix, according to the scheme used in the shipyard. The paints and the GFRP substrate were characterised by Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM) with energy dispersive X-ray spectrometry (EDS). The effectiveness of the cleaning treatment and the effects on the substrate were evaluated by optical microscopy, interferometric microscopy, SEM-EDS and FTIR spectroscopy. The results indicate that satisfactory cleaning was achieved with controlled removal of unwanted layers without damaging or chemically altering the polymer bulk. The surfaces were also evaluated by SEM and interferometric microscopy to characterise morphological changes, and their wettability was characterised by contact angle measurements. In addition, the results were compared with those obtained by the conventional mechanical method (paint scraping and sanding). A roughening of the laser cleaned surfaces was observed compared to untreated surfaces as well as compared to mechanically cleaned surfaces. Laser treatment caused a decrease in wettability; sanded surfaces showed comparable behaviour. This study demonstrates the potential of femtosecond lasers for safe and effective cleaning of GFRP substrates in a more environmentally friendly manner.This research was partially supported by Grant PID2021-123948OB-I00 funded by MCIN/AEI/10.13039/501100011033 and by “ERDF A way of making Europe”, by the “European Union”

Performance and sustainability of BERT derivatives in dyadic data

[Abstract]: In recent years, the Natural Language Processing (NLP) field has experienced a revolution, where numerous models – based on the Transformer architecture – have emerged to process the ever-growing volume of online text-generated data. This architecture has been the basis for the rise of Large Language Models (LLMs). Enabling their application to many diverse tasks in which they excel with just a fine-tuning process that comes right after a vast pre-training phase. However, their sustainability can often be overlooked, especially regarding computational and environmental costs. Our research aims to compare various BERT derivatives in the context of a dyadic data task while also drawing attention to the growing need for sustainable AI solutions. To this end, we utilize a selection of transformer models in an explainable recommendation setting, modeled as a multi-label classification task originating from a social network context, where users, restaurants, and reviews interact.Research funded by the Spain Ministry of Science, Innovation and Universities (MCIN/AEI/10.13039/501100011033) and ERDF “A way of making Europe” (PID2019-109238GB-C22, PID2021-128045OA-I00, PID2023-147404OB-I00), by the “Xunta de Galicia” (ED431C 2022/44) with the European Union ERDF funds, and by the Ministry for Digital Transformation and Civil Service and “Next-GenerationEU”/PRTR (Grant TSI-100925-2023-1). CITIC, as Research Center accredited by Galician University System, is funded by “Consellería de Cultura, Educación e Universidade from Xunta de Galicia ”, supported in an 80% through ERDF Operational Programme Galicia 2014-2020, and the remaining 20% by “Secretaría Xeral de Universidades” (Grant ED431G 2023/01).Xunta de Galicia; ED431C 2022/44Xunta de Galicia; ED431G 2023/0

Caso Industrias del Mar SL.

[Resumen] SUPUESTO DE HECHO Industrias del Mar SL, es propiedad por partes iguales de los hermanos don Juan Fernández y doña María López y tiene una planta de envasado de conservas del mar en Boiro, A Coruña. Con las pérdidas incurridas por la sociedad conservera INDUSTRIAS DEL MAR SL en el presente ejercicio, su patrimonio esto ha quedado formado por las cuatro partidas siguientes (datos en miles de euros -k€-): Capital social 100; Reservas 45; Rendimientos de ejercicios anteriores menos 45; Rendimientos del ejercicio menos 60. Son administradores solidarios don Juan Fernández y doña María López, quienes para lograr la continuidad de la empresa que tiene 7 trabajadores están buscando un comprador que adquiera las participaciones.Traballo fin de grao. (UDC.FDER). Dereito. Curso 2023/202

De la universidad a las redes

A Iniciativa “Principia”, presentada o día 26 de febrero de 2025 no Salón de actos da ETSAC, consta de 27 rexistros audiovisuais que inclúen clases maxistrais, entrevistas, conversacións, reflexións e sesións docentes, co obxetivo de construir e compartir a historia da ETSAC e deixar un rexistro audiovisual dunha significativa mostra do profesorado que contribuíu de xeito decisivo a poñela en marcha, conformando a súa identidade ao longo do tempo como resultado da confluencia das súas moi diversas traxectorias docentes e profesionais. Idea, dirección e montaxe do arquitecto Xosé Manuel Rosales Noves.Rexistro audiovisual que recolle unha conferencia do profesor da ETSAC, José Ramón Soraluce Blond, e que forma parte da colección “Principia” que, con motivo do 50 aniversario da Escola Técnica Superior de Arquitectura da Coruña, fai un recoñecemento académico á súa labor e legado

Female Historians at the Dawn of the Professionalization of the Discipline

[Resumen] Introducción: Son muchas las mujeres que han contribuido a la profesionalización de la Historia desde que comenzó a considerarse una disciplina académica. El objetivo de este estudio es visibilizar algunas de las primeras historiadoras de habla inglesa reconocidas como tales. Asimismo, examinaremos su contribución personal. Metodología: Se ha utilizado el subcorpus de manuscritos histórico-científicos CHET, del Coruña Corpus of English Scientific Writing, con una muestra de 2 historiadores por década. Contamos con 40 historiadores durante 2 siglos (1700-1900), de los que 8 son mujeres. Las fuentes documentales proceden de archivos históricos, bibliotecas y diversas instituciones. Resultados: Existe una importante representación de historiadoras en los albores de la profesionalización de la disciplina Historia. La documentación archivística refleja la dinámica actividad profesional de las historiadoras de la época. Discusión: Muchas historiadoras contribuyeron prolífica y significativamente a la profesionalización de la disciplina Historia sin que ello repercutiese en su visibilidad en la actualidad. Conclusiones: Los nombres y trabajos de las historiadoras que contribuyeron a la profesionalización de la disciplina están conservados en bibliotecas, instituciones y archivos históricos. Queda pendiente para futuros/as historiadores/as restaurar el lugar de estas mujeres en la historia de la Historia.[Abstract] Introduction: There are many women who have contributed to the professionalization of History since it began to be considered an academic discipline. The aim of this study is to make visible some of the first female English-speaking historians recognized as such. We will also examine their personal contribution. Methodology: The subcorpus of historical-scientific manuscripts CHET, from the Coruña Corpus of English Scientific Writing, has been used, with a sample of 2 historians per decade. We have 40 historians over 2 centuries (1700-1900), of which 8 are women. The documentary sources come from historical archives, libraries and various institutions. Results: There is an important representation of female historians at the dawn of the professionalization of the discipline History. The archival documentation reflects the dynamic professional activity of the historians of the time. Discussions: Mauris Many female historians contributed prolifically and significantly to the professionalization of the discipline History without this impacting its visibility today. Conclusions: The names and works of the historians who contributed to the professionalization of the discipline are preserved in libraries, institutions and historical archives. It remains for future historians to restore the place of these women in the history of History

Better Benchmarking LLMs for Zero-Shot Dependency Parsing

Presented at: Joint 25th Nordic Conference on Computational Linguistics and 11th Baltic Conference on Human Language Technologies (NoDaLiDa/Baltic-HLT 2025), pages 121–135, March 3-4, 2025 ©2025 University of Tartu LibraryCódigo asociado: https://github.com/anaezquerro/naipar[Abstract]: While LLMs excel in zero-shot tasks, their performance in linguistic challenges like syntactic parsing has been less scrutinized. This paper studies state-of-the-art openweight LLMs on the task by comparing them to baselines that do not have access to the input sentence, including baselines that have not been used in this context such as random projective trees or optimal linear arrangements. The results show that most of the tested LLMs cannot outperform the best uninformed baselines, with only the newest and largest versions of LLaMA doing so for most languages, and still achieving rather low performance. Thus, accurate zero-shot syntactic parsing is not forthcoming with open LLMs.We acknowledge grants SCANNER-UDC (PID2020-113230RB-C21) funded by MICIU/AEI/10.13039/501100011033; GAP (PID2022-139308OA-I00) funded by MICIU/AEI/10.13039/501100011033/ and ERDF, EU; LATCHING (PID2023-147129OB-C21) funded by MICIU/AEI/10.13039/501100011033 and ERDF, EU; and TSI-100925-2023-1 funded by Ministry for Digital Transformation and Civil Service and “NextGenerationEU” PRTR; as well as funding by Xunta de Galicia (ED431C 2024/02), and Centro de Investigación de Galicia “CITIC”, funded by the Xunta de Galicia through the collaboration agreement between the Consellería de Cultura, Educación, Formación Profesional e Universidades and the Galician universities for the reinforcement of the research centres of the Galician University System (CIGUS). We also extend our gratitude to CESGA, the supercomputing center of Galicia, for granting us access to its resources.Xunta de Galicia; ED431C 2024/0

Asymptotic inference for a sign-double autoregressive (SDAR) model of order one.

[Abstract]: We propose an extension of the double autoregressive (DAR) model: the sign-double autoregressive (SDAR) model, in the spirit of the GJR-GARCH model (also named the sign-ARCH model). Our model shares the important property of DAR models where a unit root does not imply nonstationarity and it allows for asymmetry, as other alternatives in the literature such as the GJR-GARCH or asymmetric linear DAR and dual-asymmetry linear DAR models. We establish consistency and asymptotic normality of the quasi-maximum likelihood estimator in the context of the SDAR model. Furthermore, it is shown by simulations that the asymptotic properties also apply in finite samples. Finally, an empirical application shows the usefulness of our model specially in periods of supply/demand crises of oil disruptions, where spikes of volatility are very likely to be predominant.The author is also very grateful for the financial support from the Spanish Ministry of Science and Innovation -project PID2022-137923NB-I00- and from Xunta de Galicia -project ED431C 2024/16Xunta de Galicia; ED431C 2024/1

Direct and indirect relationships between Food Parental Practices, diet quality, and food satisfaction in adolescents

[Abstract] Introduction: The relationship between four parental feeding practices from the Comprehensive Feeding Practices Questionnaire for adolescents (CFPQ-Teen) and Satisfaction With Food-related Life (SWFoL) in adolescents was evaluated using diet quality measured using the Adapted Healthy Eating Index (AHEI) as a mediating variable. Methods: Participants were 860 adolescents aged 10–16 years of both sexes who responded to four factors on the CFPQ-Teen, food satisfaction scale, and diet quality index. Structural equation analysis was used in a structural mediation model on a polychoric correlation matrix using the weighted least squares mean-variance adjusted (WLSMV) method. Results: Diet quality was a mediating factor in the interaction between two parental practices related to parental modeling and adolescent control over SWFoL. There was evidence of a direct relationship between monitoring and restrictive factors for weight control and SWFoL. Conclusions: The findings indicated that the association between parental feeding practices and food satisfaction may be direct or mediated by diet quality in adolescents.The author(s) declare financial support was received for the research, authorship, and/or publication of this article. This study was funded by the National Agency for Research and Development (ANID), Fondecyt Project No. 1190017 and Fondecyt Project No. 1230060Chile. National Agency for Research and Development; 1190017Chile. National Agency for Research and Development; 123006

Teoría correalista e deseño: do manifesto ao produto comercial

[Resumo] A través de trazar a historia detrás do deseño do sillón Tantra, este traballo céntrase na relación entre o deseño, o surrealismo, o correalismo e a sexualidade, explorando como estes conceptos inflúen na creación de obxectos que combinan función, estética e simbolismo. A análise aborda temas clave para entender a conexión entre arte, cultura e deseño. En primeiro lugar, explórase a influencia do surrealismo e o correalismo, destacando como Frederick Kiesler integra elementos como a máxica, os mitos e as formas biomórficas na súa arquitectura e arte. A súa idea do "continuum espacial" reflicte unha integración única entre arte e vida. Ademais, analízase a crítica de Kiesler ao Movemento Moderno, rexeitando o funcionalismo como un enfoque baleiro e defendendo un deseño orgánico que atenda ás necesidades integrais do ser humano. Ademáis descríbese a evolución das formas xeométricas ás sinuosas no Movemento Moderno, conectando arte, deseño e sexualidade como expresións culturais e artísticas. Tamén se estudan as pautas do deseño correalista, baseadas na continuidade, a multifuncionalidade e a adaptabilidade. Exemplos como as sillas Rocker e Chair ilustran esta visión, que se observa tamén en pezas modernas. O traballo aborda ademais o deseño orientado ao autopracer e ao erotismo, analizando obxectos como o Sybian e o sillón tantra, vinculándoos co surrealismo e deseños de Verner Panton. O traballo propón unha análise que conecta arte, deseño, sexualidade e teoría, revelando como os movementos culturais e filosóficos influíron na creación de obxectos que transcenden a súa funcionalidade para convertirse en expresións culturais e artísticas.[Resumen] A través de rastrear la historia detrás del diseño del sillón Tantra, este trabajo se centra en la relación entre el diseño, el surrealismo, el correalismo y la sexualidad, explorando cómo estos conceptos influyen en la creación de objetos que combinan funcionalidad, estética y simbolismo. El análisis aborda temas clave para comprender la conexión entre arte, cultura y diseño. En primer lugar, se explora la influencia del surrealismo y el correalismo, destacando cómo Frederick Kiesler integra elementos como la magia, los mitos y las formas biomórficas en su arquitectura y arte. Su idea del "continuum espacial" refleja una integración única entre arte y vida. Además, se analiza la crítica de Kiesler al Movimiento Moderno, rechazando el funcionalismo como un enfoque vacío y defendiendo un diseño orgánico que responda a las necesidades integrales del ser humano. También se describe la evolución de las formas geométricas a las sinuosas dentro del Movimiento Moderno, conectando arte, diseño y sexualidad como expresiones culturales y artísticas. Se estudian las pautas del diseño correalista, basadas en la continuidad, la multifuncionalidad y la adaptabilidad. Ejemplos como las sillas Rocker y Chair ilustran esta visión, observable también en piezas modernas. Además, el trabajo examina el diseño orientado al autoplacer y al erotismo, analizando objetos como el Sybian y el sillón Tantra, vinculándolos con el surrealismo y diseños de Verner Panton. El trabajo propone una reflexión que conecta arte, diseño, sexualidad y teoría, revelando cómo los movimientos culturales y filosóficos han influido en la creación de objetos que trascienden su funcionalidad para convertirse en expresiones culturales y artísticas.[Abstract] Through tracing the history behind the design of the Tantra chair, this work focuses on the relationship between design, surrealism, correalism, and sexuality, exploring how these concepts influence the creation of objects that combine function, aesthetics, and symbolism. The analysis addresses key themes to understand the connection between art, culture, and design. Firstly, the influence of surrealism and correalism is explored, highlighting how Frederick Kiesler integrates elements such as magic, myths, and biomorphic forms into his architecture and art. His idea of the "spatial continuum" reflects a unique integration of art and life. Additionally, Kiesler's critique of the Modern Movement is analyzed, rejecting functionalism as an empty approach and advocating for an organic design that addresses the integral needs of the human being. Moreover, the evolution of geometric forms to sinuous ones within the Modern Movement is described, linking art, design, and sexuality as cultural and artistic expressions. The guidelines of correalist design are also studied, emphasizing continuity, multifunctionality, and adaptability. Examples such as the Rocker and Chair illustrate this vision, which is also evident in modern pieces. Furthermore, the work examines design oriented toward self-pleasure and eroticism, analyzing objects like the Sybian and the Tantra chair, linking them to surrealism and Verner Panton’s designs. This work proposes an analysis that connects art, design, sexuality, and theory, revealing how cultural and philosophical movements have influenced the creation of objects that transcend their functionality to become cultural and artistic expressions.Traballo fin de grao (UDC.ETSA). Estudos en arquitectura. Curso 2024/202

Influence of ABCB1 polymorphisms on aripiprazole and dehydroaripiprazole plasma concentrations

[Abstract] Aripiprazole (ARI) is an atypical antipsychotic which is a substrate of P-glycoprotein (P-gp), a transmembrane glycoprotein that plays a crucial role in eliminating potentially harmful compounds from the organism. ARI once-monthly (AOM) is a long-acting injectable form which improves treatment compliance. Genetic polymorphisms in ABCB1 may lead to changes in P-gp function, leading to individual differences in drug disposition. The present study aims to determine how the different variants of the three most prevalent SNPs of the ABCB1 gene affect plasma concentrations of ARI, of its active metabolite dehydroaripiprazole (DHA) and ARI/DHA ratio in patients under AOM treatment. The metabolizing state of the two main aripiprazole metabolizing enzymes (CYP2D6 and CYP3A4) were considered to specifically study the effect of P-gp on plasma concentrations of the parent compound and its active metabolite. The study found a clear relationship between the genotypes found for the different ABCB1 SNPs and the ARI/DHA ratio. Specifically, patients with GG genotype in G2677T have almost twice the ratio compared to TT genotype. Similarly, this increase is also found in C3435T with 1.4-fold and in C1236T with 1.6-fold for the same genotypes. Regarding haplotypes, significant differences were obtained between CC-GG-CC and TT-TT-TT patients, with an 87.9% higher ratio in patients with the CC-GG-CC haplotype. There was a clear trend towards lower ARI concentrations and higher DHA concentrations when the presence of mutated T alleles increases. The ABCB1 gene could be a good partner along with CYP2D6 and CYP3A4 genotyping in conjunction with monitoring ARI plasma concentrations.This work was supported by the Spanish Society of Hospital Pharmacy through the Call for Aid to Work Groups 2021–2022 (SEFH21/22) and Xunta de Galicia (GAIN) IN607A2023/04.Xunta de Galicia; IN607A2023/0