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Adimen Artifizialaren erabilera erreklutamendu eta hautaketa prozesuetan
No full textLan honek adimen artifizialaren eragina eta aplikazioa aztertzen du erreklutamendu eta hautaketa prozesuetan, giza baliabideen kudeaketa modernizatzean duen garrantzia azpimarratuz. Adimen artifizialak prozesuak automatizatu, kostuak eta denbora murriztu eta hautagaien egokitzapen hobea ahalbidetzen du, curriculumak aztertzetik elkarrizketa birtualetaraino. Aldi berean, erronka etikoak eta alborapen arriskuak ere kontuan hartu behar dira. Lanak literatura azterketa teorikoa eta enpresa errealez (Unilever, L’Oréal, etab.) eta elkarrizketetan oinarritutako azterketa praktikoa uztartzen ditu, teknologia horren erabilera erreala eta etorkizuneko erronkak aztertzeko
Towards high-pressure noble gaseous detectors for coherent elastic neutrino-nucleus scattering
No full text175 p.This thesis investigates the detection of coherent elastic neutrinonucleusscattering (CE¿NS), a challenging low-energy neutrinointeraction. It evaluates various neutrino sources¿reactor,spallation, and solar¿and detector materials, highlighting the European Spallation Source (ESS) as a promising site. Keycontributions include the development of a compact 4¿ neutron scattercamera with integrated optical imaging, and the design of GanESS, ahigh-pressure noble gas time projection chamber optimized for CE¿NSdetection using argon, xenon, or krypton. First results with theGaseous Prototype (GaP) show promising energy thresholds andperformance. Detailed simulations using Garfield++ and COMSOL provideinsights into electroluminescence behaviour and threshold estimation,although some non-linear detector responses at low E/p remainunresolved. Overall, this work establishes a robust foundation forCE¿NS studies at spallation sources and advances detectiontechnologies with broader implications for neutrino physics and rareeventsearches
Exploring prefrontal cortex dysfunction in the Fmr1KO mouse model of autism and fragile X syndrome
No full text137 p.Neurodevelopmental disorders are conditions affecting nervous system development, leading to a range of clinical features, including difficulties with cognitive function, adaptive behaviour, or the processing of sensory information. Fragile X syndrome, an ¿archetypal¿ neurodevelopmental disorder, with extensive overlap with other conditions such as autism and attention deficit and hyperactivity disorder, is modelled by the Fmr1KO mouse. Here, we probed the role of the prefrontal cortex alterations in the complex pathophysiology of this model. To do this, we first developed a custom-made operant tasj testing auditory discrimination and sensory filtering in freely moving animals. The task was designed to optimize engagement and self-directed behaviour, while maximizing both ethological and translational considerations. The task requires extensive training and is sensitive to the quality of the acoustic stimuli. As a complementary approach, we employed trace fear conditioning, which permits insight into sustained attention, working memory, and emotional regulation. We combined this task with 1-photon based imaging of calcium activity using a head-mounted miniaturized microscope. This approach allowed the correlation of neuronal activity at cellular resolution with behavioural phenotypes allowing us to access physiological biomarkers of altered prefrontal cortex function. Using this approach, we have been able to identity event-specific signatures related to prefrontal function in the Fmr1KO model. Future experiments will explore whether these physiological changes are unique to this mouse model and to the task, or conserved in other genetic mouse models with known impairments in attention and sensory information processing
Voting record of the UN HRC Resolutions on “Human rights and unilateral coercive measure”
No full textSocial Movement Unionism in a National Conflict Context: the Cases of Basque Unions ELA and LAB
Full text linkTransformations in the world of work have led to a weakening of power and a crisis of legitimacy for trade unions. Faced with this situation, one option open to the unions is to recover their social dimension and adopt the social movement unionism model. The objective is to analyze, using qualitative methodology, the adoption of this model by the Basque nationalist unions Euko Langileen Alkartasuna and Langile Abertzaleen Batzordeak against a background marked by political and institutional conflict over the lack of self-government and sovereignty in this territory. In fact, the membership and strike activity data for these unions indicate that the strategic revitalization process has been particularly successful. Data extraction is relied on the analysis of documents issued by the trade unions themselves and in-depth interviews with key informants. Publications on the subject as secondary sources are used to complement the analysis.Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This work was supported by the Ministry of Culture, Education and Sports (now Ministry of Universities) of Spain, under University Teacher Training Programme
Field-based assessment of the influence of a combined SUDS system consisting of a permeable pavement and a stormwater tank on urban runoff quality
Full text linkSustainable Urban Drainage Systems (SUDS) are designed to protect the natural water cycle, to manage flood risk and to improve runoff quality. Permeable pavements (PP) are a type of SUDS that allow rainwater to infiltrate through the soil or convey it to stormwater tanks for storage before its controlled release and/or later use. To support climate change adaptation, a combined PP–stormwater tank system was implemented in Legazpi, a town in northern Spain. This study evaluates the impact of this system on urban runoff water quality. Water samples were collected during multiple rainfall events at three points: the inflow, the outflow from PPs, and the stormwater tank. Various physical and chemical parameters were analysed, including turbidity, total suspended solids (TSS), electrical conductivity, pH, dissolved oxygen, nutrients, 18 metals and metalloids, and 16 Polycyclic Aromatic Hydrocarbons. Results showed a significant decrease in water turbidity and TSS contents after passing through the PP: the inflow contained 2–20 times higher turbidity and 1.2–10 times higher TSS values. Concentrations of Fe, Mn, Ba and Cu are reduced by 46–72%. By contrast, the PP outflow revealed 1.2–2.5 times higher conductivity and there was a threefold increase in nitrate content. Naphthalene and the sum of 16 PAHs appeared to decrease, but further investigation is needed to demonstrate this statistically. As regards the stormwater tank, the study shows that there is no ecological risk for the aquatic ecosystem associated with the stored water.This work was supported by the projects CBL 23GARM and US22/10 of the University of the Basque Country (UPV/EHU), Spain. The second project involved the municipalities of Donostia-San Sebastian and Legazpi, to which we thank for their collaboration. IBeA and HGI Research Groups have also supported to the work and we are grateful to Luis Bartolomé from SGIker services, who helped with the PAH analysis of water samples. Finally, Ainhoa Lekuona-Orkaizagirre would like to thank the pre-doctoral grant of the UPV/EHU, Spain
Fault Tolerant CCS-MPC for Asymmetrical DTP-PMSM Drives Assisted by Fault Detection Algorithm
Full text linkFault tolerance is a highly desirable feature for safety-critical electric drive applications. This paper proposes an open-circuit fault tolerant model predictive controller (FT-MPC) for asymmetrical dual three-phase (DTP) permanent magnet synchronous machine (PMSM) drives, which is formulated using the continuous control set (CCS) approach. As an alternative to conventional control methods, this predictive controller solves an unconstrained quadratic programming (QP) problem to obtain the voltage references. The FT-MPC is able to operate in a reduced form under healthy operation. To enable the transition to the post-fault control mode, a fault detection and diagnosis algorithm, based on the natural coupling concept, is proposed. The control solution is implemented in an OPAL-RT OP4510 real-time digital system and is experimentally validated. Thanks to the optimisation efforts carried out during implementation, the computational burden of the proposed algorithm is kept low: the developed software requires only about 7.6 % of the controller’s sampling time to compute during healthy operation (reduced form), and about 10.1 % during the post-fault mode, demonstrating its potential applicability in automotive grade microcontrollers. On average, open-phase fault detection times of the order of 15 ms are achieved, allowing for a fast and smooth transition between healthy and post-fault operating modes. Finally, dynamic performance is addressed under standardised driving cycle profiles. The ability of the FT-MPC to keep the torque-producing sub-space on a circular trajectory during the fault detection stage is confirmed, thus avoiding additional undesired torque ripple.This work was supported in part by the Government of the Basque Country within the Fund for Research Groups of the Basque University System under Grant IT1440-22, and in part by the ELKARTEK CIPEME Project under Grant KK-2024/00053
Prefigurative politics and sub-state nationalist movements. The case of young Basque-nationalist left activists
Full text linkThis article explores the relation between left-wing sub-state nationalist movements and late modern prefigurative politics, a field of study little developed until now. The analysis is based on a case study on nationalist youth activism in the Basque Country, carried out by means of a qualitative methodological approach using in-depth interviews. The reformulations and adjustments of discourse in the post-ETA nationalist movement were addressed based on the meaning young people give to their political activity. The analysis reveals that the left-wing nationalist movement provides the social and political conditions necessary for developing new prefigurative politics, unlike the traditional politics of ethnic nation building. It likewise shows that, due to its previous contentious nature, nationalist ideology is sensitive to the different systems of oppression and is affected by the conflict agendas typical of late modernity, with the result that younger generations transfer global practices and discourses to the local level
Impacto del uso de combustibles Accident Tolerant Fuels (ATF) en la seguridad y gestión del ciclo de combustible en reactores LWR
No full text[ES] Los combustibles tolerantes a accidentes (Accident Tolerant Fuels, ATF) constituyen una de las líneas más innovadoras en el desarrollo de tecnología nuclear de nueva generación, orientada a incrementar la seguridad intrínseca de los reactores de agua ligera (LWR). El presente Trabajo Fin de Máster analiza el impacto técnico y operativo derivado de la introducción de diversos conceptos ATF en reactores LWR típicos. A través de una revisión del estado del arte, una modelización térmica y neutrónica simplificada, y una comparación con el combustible convencional UO₂ Zircaloy, se evalúan los efectos de estos combustibles sobre la seguridad en condiciones normales y accidentales, el rendimiento del núcleo, y la gestión del ciclo del combustible, incluyendo la generación de residuos radiactivos. Asimismo, se identifican escenarios de adopción óptimos y se discuten las implicaciones para su posible implementación industrial.[EU] Istripuekiko tolerantzia duten erregaiak (Accident Tolerant Fuels, ATF) belaunaldi berriko teknologia nuklearrean berrikuntza handienetako bat dira, erreaktoreen segurtasun intrintsekoa handitzeko helburuarekin, bereziki ur arineko erreaktoreetan (LWR). Master Amaierako Lan honetan, ATF kontzeptu ezberdinen LWR erreaktoreetan ezarpenak izan ditzakeen inpaktu tekniko eta operatiboak aztertzen dira. Horretarako, bibliografia-azterketa zabala, modelizazio neutroiko eta termikoa eta ohiko erregaiaren (UO₂-Zircaloy) aurkako konparazioa egiten dira. Lanak aztertzen du erregai hauek nola eragiten duten segurtasunean, eraginkortasunean eta hondakin erradioaktiboen kudeaketan. Azkenik, ezarpen industrialerako aukerak eta erronkak ere aztertzen dira.[EN] Accident Tolerant Fuels (ATF) represent one of the most promising innovations in the field of next generation nuclear technology, aimed at enhancing the intrinsic safety of light water reactors (LWRs). This Master's Thesis evaluates the technical and operational impact of incorporating several ATF concepts into typical LWRs. Based on a thorough literature review, simplified thermal and neutronic modelling, and comparative analysis with traditional UO₂-Zircaloy fuel, the study assesses the influence of ATFs on safety under normal and accident conditions, core performance, and spent fuel management, including radioactive waste generation. Furthermore, optimal deployment scenarios are proposed, and key aspects for industrial implementation are discussed
Legal positions of States and international organizations on the item “Unilateral economic measures as a means of political and economic coercion against developing countries” (2013-2023)
No full textThis paper presents the legal positions of States and international organisations on the item legal positions of States and International Organizations on the item “Unilateral economic measures as a means of political and economic coercion against developing countries” (2013-2023), in order to clarify both the state practice and opinio iuris on the possible creation or existence of a rule on the prohibition of unilateral coercive measures, as well as its hypothetical contentBasque Government's Postdoctoral Programme for the Improvement of Doctoral Research Personne