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On the applicability of scaling criteria to hydrogen micromix burners
No full textThis study investigates the scaling up of a pure hydrogen micromix-type burner from laboratory to
industrial scale, considering the stability and characteristics of the micromix combustion principle for
a baseline case of 20 kW using two different simulation approaches. Low NOx emissions and anchoring
flame without flashback risk are reported, and the technical aspects of burning pure hydrogen are
described. Four different scaling criteria’s impact on flame properties is then addressed using a set of
Reynolds average Navier Stokes simulations. A novel scaling criterion for the micromix-type burner
to ensure flame anchoring, flame stabilisation and low NOx emissions is proposed. This criterion and
the constant residence time criterion perform better than constant velocity and constant momentum
criteria in scaling up the MCP’s main characteristics. Finally, a novel methodology for scaling the
burner is proposed. The valuable insights from this study can aid in sizing laboratory-scale burners
according to the necessary industrial requirements.The authors would like to express their gratitude to the Basque Government for the support given to this research through project Elkartek and project IT1514-22
Generative AI and the Urban AI Policy Challenges Ahead: Trustworthy for Whom?
No full textThis Special Issue of Transforming Government: People, Process and Policy addresses the accelerating convergence between Generative AI (GenAI), Urban AI, and public governance. As algorithmic systems are deployed across domains such as transport, welfare, housing, education, and security, cities become both laboratories of innovation and battlegrounds of democratic legitimacy. Trustworthy AI has emerged as a policy imperative—but the question remains: trustworthy for whom? Rather than treating trust as a static feature of technical systems, this Special Issue reframes it as a relational, contested, and institutionally mediated concept—fundamental to the legitimacy of public action in the digital age. Contributions are encouraged that explore GenAI not only as a technological advance, but as a governance challenge that reconfigures discretion, authority, and the social contract between citizens and institutions. Inspired by Richard R. Nelson’s enduring metaphor of “The Moon and the Ghetto”—which captures the asymmetries between technological sophistication and social equity—this Special Issue invites a renewed interrogation of how AI policy can bridge systemic inequalities rather than entrench them. Urban governance frameworks must move beyond techno-solutionism to embed pluralism, accountability, and public value at the core of GenAI deployments. Scholars, policymakers, and practitioners are invited to submit empirical, theoretical, and policy-oriented contributions that critically examine how Urban AI can be governed with legitimacy, reflexivity, and justice.This study was supported by (i) European Commission, Horizon 2020, H2020-MSCA-COFUND-2020-101034228-WOLFRAM2: Ikerbasque Start Up Fund, 3021.23.EMAJ; (ii) EHU, Research Groups, IT 2046-26 and IT 1541-22; (iii) Ayuda en Acción NGO, Innovation & Impact Unit, Research Contract: Scientific Direction and Strategic Advisory, Social Innovation Platforms in the Age of Artificial Intelligence (AI) (www.designingopportunities.org accessed on 1 July 2024) and AI for Social Innovation. Beyond the Noise of Algorithms and Datafication Summer School Scientific Direction, 2-3 September 2024, Donostia-St. Sebastian, Spain (https://www.uik.eus/en/activity/artificial-intelligence-social-innovation-ai4si accessed on 1 July 2024), PT10863; (iv) Presidency of the Basque Government, External Affairs General Secretary, Basque Communities Abroad Direction, Scientific Direction and Strategic Advisory e-Diaspora Platform HanHemen (www.hanhemen.eus/en accessed on 1 July 2024), PT10859; (v) European Commission, Horizon Europe, ENFIELD-European Lighthouse to Manifest Trustworthy and Green AI, HORIZON-CL4-2022-HUMAN-02-02-101120657, https://www.enfield-project.eu/about. Invited Professor at BME, Budapest University of Technology and Economics (Hungary) (https://www.tmit.bme.hu/speechlab?language=en); (vi) Gipuzkoa Province Council, Etorkizuna Eraikiz 2024: AI’s Social Impact in the Historical Province of Gipuzkoa (AI4SI). 2024-LAB2-007-01. www.etorkizunaeraikiz.eus/en/ and https://www.uik.eus/eu/jarduera/adimen-artifiziala-gizarte-berrikuntzarako-ai4si; (vii) Warsaw School of Economics SGH (Poland) by RID LEAD, Regional Excellence Initiative Programme (https://rid.sgh.waw.pl/en/grants-0 and https://www.sgh.waw.pl/knop/en/conferences-and-seminars-organized-by-the-institute-of-enterprise and https://www.sgh.waw.pl/knop/en/conferences-and-seminars-organized-by-the-institute-of-enterprise; (viii) SOAM Residence Programme: Network Sovereignties (Germany) via BlockchainGov (www.soam.earth); (ix) Decentralization Research Centre (Canada) (www.thedrcenter.org/fellows-and-team/igor-calzada/); (x) The Learned Society of Wales (LSW) 524205; (xi) Fulbright Scholar-In-Residence (S-I-R) Award 2022-23, PS00334379 by the US–UK Fulbright Commission and IIE, US Department of State at the California State University; (xii) the Economic and Social Research Council (ESRC) ES/S012435/1 “WISERD Civil Society: Changing Perspectives on Civic Stratification/Repair”; (xiii) Digital Inclusion & GenAI, Gipuzkoa Province Council. PT10937; (xiv) Astera Institute: SenseNet/Cosmik/Cairos. Data Cooperatives for Open Science
Emakumezkoen eskubaloia: ikusgarritasuna eta sustapena
No full textEspainiako emakumezkoen eskubaloiaren ikusgarritasuna eta sustapena marketinaren ikuspegitik garatzeke dagoen arlo bat da. Kirol arloan gora egin duen arren, emakumezkoen eskubaloiak oraindik ere gizonezkoen kirolen aldean presentzia mediatiko eta baliabide gutxiago ditu Espainian. Lanak liga nagusien, jokalarien, federazioen, babesleen eta komunikabideen rola aztertzen du, baita Frantziako kasu arrakastatsua ere. Lanean, besteen artean, sare sozialen presentziaren eta jokalarien inguruan istorio bereizgarriak sortzearen garrantzia aipatzen da, Espainian garatu beharreko arlo gisa
Ikaskuntza-Zerbitzua metodologia Lehen Hezkuntzan: irakasleen formakuntza kasu bat
No full text[EU] Gradu Amaierako Lan honen helburu nagusia ikastetxe bateko irakasleen beharrari erantzutea izan da; eta, horretarako Ikaskuntza-Zerbitzua metodologia erabili da. Ildo horretan, hezkuntza instituzioko irakasle zein praktikariei Ikaskuntza-Zerbitzua beraren inguruko formakuntza bat eman zaie, metodologiaren onuren, ezaugarrien eta aplikazio praktikoaren berri emateko. Prestakuntza horrekin batera, gida praktiko bat eskaini zaie, etorkizuneko inplementazio prozesuan lagunduko dien baliabide gisa. Azkenik, jasotako balorazioen bidez, metodologia ezartzeko bideragarritasuna eta prestutasuna identifikatu dira, baita irakasleen hasierako zein etengabeko formakuntzaren garrantzia balioetsi ere.[ES] El objetivo principal de este Trabajo Fin de Grado ha sido dar respuesta a las necesidades del profesorado de un centro educativo utilizando la metodología Aprendizaje-Servicio. Para ello se ha impartido una formación metodológica sobre el propio Aprendizaje-Servicio al profesorado y practicantes de la institución educativa para informar sobre los fundamentos de la metodología, sus beneficios y aplicación práctica. Junto con esta formación, se ha ofrecido una guía práctica como recurso que les ayude en el futuro proceso de implementación. Por último, mediante las valoraciones obtenidas se ha identificado la viabilidad y predisposición para implantar la metodología y se ha valorado la importancia de la formación inicial y continua del profesorado.[EN] The main objective of this Final Degree Project was to address the needs of teachers at an educational center using the Service-Learning methodology. To this end, a methodological training on Service-Learning was provided to the educational institution's teachers and interns to inform them about the methodology's benefits, foundations and its practical application. Along with this training, a practical guide was provided as a resource to assist them in the future implementation process. Finally, through assessments, the feasibility and willingness to implement the methodology were identified, and the importance of initial and ongoing teacher training was evaluated
Citizenship in the context of contested nationalism: Insights from Basque social movements
No full textThis paper contributes to knowledge about social movements' visions of citizenship. The aim is twofold: on the one hand, to offer an analysis of how social movements understand the subjective and objective dimensions of citizenship. On the other, to explore how a context of national conflict shapes activists' perspectives on this concept. To this end, it presents a case study focused on the Basque Country, a territory in which sub-state nationalism is a central feature of the social and political landscape. The paper is based on a qualitative analysis of the discourses of a number of Basque political activists engaged in campaigning around the issues of feminism, environmentalism, anti-racism and migrant rights, and the movement for the revitalisation of the Basque language. The main conclusion is that the national question adds an additional layer of complexity to the perspectives on citizenship articulated by social movements, especially in relation to language and national identities.Ministerio de Asuntos Económicos y Transformación Digital, Gobierno de España MINECOG17/P1
Assessment of metro accessibility and its relationship with Urban Economic Structure in Bilbao: a monocentric city approach
No full textThis work examines the link between metropolitan transport accessibility and urban
economic structure in Bilbao, a monocentric city with a defined Central Business District
(CBD). Referring to classical urban economic models developed by Alonso (1964), Muth
(1969), and Mills (1972), the study turns to the assumptions of the monocentric city
model to investigate the spatial and temporal access to the metro network and the CBD
in reference to the key economic indicators at neighborhood scale.
The study employs a mixed-methods approach integrating theoretical overview with
empirical analysis. The conceptual phase establishes a theoretical framework for urban
form, transport accessibility, and economic dispersion. The empirical phase employs
empirical evidence from 40 Bilbao districts to focus on variables such as housing prices,
population density, average income, unemployment, and business establishment
density. Accessibility is measured both physically and travel time to the metro and CBD.
Spatial data are processed in SAGA GIS, and statistical and econometric modeling is
carried out using Gretl. This aims to check whether proximity to the city transit system
influences the spatial pattern of economic activity as proposed by monocentric urban
theory
Business Simulation Games for the Development of Decision Making: Systematic Review
No full textBusiness simulation games (BSGs) are considered a useful instructional tool
to be implemented in the classroom, especially in light of new trends in education. The
key components of the paradigm are BSGs and Decision Making (DM), as the latter is
often essential to a high-quality education. Thus, over the last 10 years, efforts to find
possible methods to enhance BSG learning experiences for the development of DM in
higher education have increased. The goals of this article were to examine the effect of BSGs
on students’ DM at university, and to identify the elements that can be developed in the
BSGlearning experience to promote DM. Following PRISMA criteria, a systematic review
was carried out using Scopus, Web of Science, and ProQuest. A total of 13 of the 2897
papers that were first discovered underwent a comprehensive review, with all conclusions
and findings subjected to analysis. Following implementation, the majority of the BSG
learning experiences enhanced DM results. In summary, a few key elements have been
highlighted that must be followed to ensure the BSG learning experience helps students
foster their DM
Lehen Hezkuntzako musika irakasleen prestakuntza: prestakuntzaren azterketa eta irakaskuntza-ikaskuntza prozesuaren kalitatean duen eragina.
No full text[EU] Lehen Hezkuntzako musika irakasleen prestakuntzaren egungo egoera aztertu da ikerketa honetan, musika irakaskuntzaren kalitatean duen eragina nabarmenduz.
Horretarako, galdetegi mistoa erabili da, alderdi kuantitatibo eta kualitatiboak uztartuz.
Emaitzek erakutsi dute irakasleen prestakuntza ereduak, motibazio maila eta gaitasun
didaktiko-praktikoak askotarikoak direla, eta, kasu askotan, ez direla nahikoak musika
irakaskuntza kalitatezkoa bermatzeko. Ondorio nagusitzat, prestakuntza programak
sakondu eta eguneratzeko beharra identifikatu da, baita curriculumaren presioari eta
baliabide faltari aurre egiteko neurriak proposatzea ere, musika irakaskuntzaren
kalitatea eta irakasleen profesionaltasuna sendotzeko.[ES] En este trabajo se ha analizado la situación actual de la formación del profesorado de música en Educación Primaria, destacando su impacto en la calidad de la enseñanza musical. Para ello, se ha utilizado un cuestionario mixto, integrando aspectos cuantitativos y cualitativos. Los resultados muestran que los modelos de formación, la motivación y las competencias didáctico-prácticas del profesorado son muy diversas y, en muchos casos, insuficientes para garantizar una enseñanza musical de calidad. Como conclusión principal, se identifica la necesidad de profundizar y actualizar los
programas de formación, así como proponer medidas frente a la presión curricular y la falta de recursos, para fortalecer la calidad educativa y la profesionalidad docente.[EN] This study analyzed the current situation of music teacher training in Primary Education, highlighting its impact on the quality of music teaching. For this purpose, a mixed questionnaire has been used, integrating quantitative and qualitative aspects. Results showed that training models, motivation, and teachers’ didactic-practical skills are highly diverse and, in many cases, insufficient to ensure high-quality music teaching. As a main conclusion, the need to deepen and update training programs is identified, as well as to propose measures to address curricular pressure and lack of resources, in order to strengthen educational quality and teacher professionalism
A very fast failure recovery strategy: Offloading processing to the data plane to enhance the performance of communication networks
No full text180 p.Este trabajo propone una estrategia para la mejora del funcionamiento de las redes de comunicaciones ante eventos que impactan en su rendimiento, que se basa en el uso de redes SDN con Planos de Datos Programables (PDP). Para ello, se propone una reacción orquestada desde el plano de datos de los dispositivos con PDP, que disponen de una visión directa en el punto en que se produce el evento (congestión, fallo en un enlace, etc.), y que reaccionan de forma prácticamente inmediata ante la ocurrencia de dicho evento. Esto mejora de forma significativa los tiempos de reacción ante eventos de las estrategias tradicionales basadas en la utilización de protocolos de rutado distribuidos, y también de SDNs, las cuales requieren la intervención de un controlador centralizado. Esta estrategia se basa también en la preconfiguración de estados alternativos por parte de los controladores que poseen visión global centralizada de la red y capacidad de customización en la programación de algoritmos de rutado tanto para rutas primarias como alternativas. De este modo, se combinan la rapidez en la reacción de los PDPs junto con la visión centralizada de los controladores, que proporcionan configuraciones coordinadas entre todos los dispositivos. Por tanto, la respuesta ante eventos es inmediata y adecuada a la topología y estado de la red, a la vez que a las políticas y preferencias de rutado de los operadores de las redes. Se presentan 3 soluciones de respuesta los posibles eventos de red desde el plano de datos (especialmente diseñados para fallos en enlaces) que ofrecen la mejor respuesta dependiendo de los requerimientos de los distintos servicios de red. Estas 3 soluciones se podrían utilizar de forma independiente en distintos escenarios de red, o de forma combinada en un mismo escenario de red. Como aspecto adicional, las validaciones se han llevado a cabo de dos maneras. Por un lado, mediante una plataforma de emulación en la que se han realizado pruebas en escenarios diversos y más complejos. Por otro lado, se ha usado equipamiento real para validar los resultados basados en emulación y para demostrar la viabilidad del diseño en un entorno real
Padrinazgo sindical en la península ibérica: la UGT y la creación de la União Geral de Trabalhadores de Portugal
No full textLa cuestión sindical fue una de las principales líneas de expresión de la “corriente de retorno” de las Transiciones ibéricas, la influencia que la democratización española ejerció en el Portugal posrevolucionario. En el caso que nos ocupa, supuso al intento de trasladar la exitosa experiencia del sindicato español UGT a un país donde la unicidad establecida por decreto durante la revolución favoreció una preponderancia comunista en el movimiento obrero. En esta ocasión, incidiremos en el papel que tuvo el sindicato socialista español en la creación de una central obrera alternativa a la CGTP-IN, analizando su desconocido padrinazgo en la creación y articulación de lo que acabaría siendo la União Geral de Trabalhadores de Portugal