Dipòsit Digital de la Universitat de Barcelona
El Dipòsit Digital de la Universitat de Barcelona és el repositori institucional que conté en format digital els materials derivats de l'activitat docent, investigadora i institucional de la comunitat universitària.
Enviaments recents
Treball de fi de màsterConvolutional Autoencoders to estimate open cluster astrophysical parameters(2026-09) Musté Ferré, Pol; Castro Ginard, Alfred; Malhotra, Sagar; Miret Roig, NúriaDeriving open cluster parameters through traditional isochrone fitting is a slow process, difficult to scale to large photometric surveys. In this thesis, we develop a Convolutional Autoencoder (CAE) that infers cluster distance, age, binary fraction, and total stellar mass from open cluster members photometry, astrometry and member star counts. We train the CAE on synthetic clusters simulated with PARSEC stellar evolutionary models mimicking Gaia DR3 observations, and apply it to estimate these parameters for 42 well-characterised real open clusters. On the validation set with simulated data, the network recovers all four parameters with good accuracy and precision, except the binary fraction. Applied to real clusters, mass predictions remain robust, while distance, age, and binary fraction are consistently overestimated. The reduced accuracy on real clusters reflects an expected generalisation gap between idealised simulations and real observational data, rather than a structural failure of the architecture. Upgrading the training simulations with observational effects remains the primary direction for future improvement- ArticleBurnout and perceived health in medical residents after the COVID-19 pandemic: a single-center cross-sectional study(Frontiers Media, 2026-06-19) Olive, Victoria; Navinés, Ricard; Pujol, Laura; Langohr, Klaus; Vieta i Pascual, Eduard, 1963-; Martín Santos, RocíoIntroduction: Residents have a high risk of burnout during the training period. The COVID-19 pandemic has had a great impact on work conditions and health of medical residents. We therefore estimated the prevalence of post-pandemic burnout and perceived health, and their relationship with psychosocial factors, stress profile, and job satisfaction, as well as the pre-post pandemic changes.Methods: We carried out a retrospective cross-sectional, online, anonymous survey using the validated FPSICO-4.0 questionnaire in a teaching hospital after the COVID-19 pandemic (2023). We also studied the pre-post changes from an independent pre-pandemic online survey (2018) with the same tool.Results: One hundred ninety-seven residents, 64% females, answered the questionnaire (43.5%); 28% had post-pandemic burnout without gender differences, being higher in surgical specialties (p=0.017) and along residency years (p=0.041). Role performance, behavior stress, job satisfaction and residency years were associated with an increase in odds of burnout (p<0.05). Supervision, conflict of role/cognitive stress explained 35% of the variation in perceived general health (adjusted-R2 = 0.356); temporary autonomy, supervision, information/training/promotion, behavior/somatic stress, and job satisfaction did 68% of mental health (adjusted-R2 = 0.683); and take decisions, conflict of role, behavior/somatic/cognitive stress, and male gender did 62% of vitality (adjusted-R2 = 0.624). Pre/post pandemic mean differences, adjusted by gender and residency year, showed deterioration of variety sense of work (p<0.001), effort of attention (p=0.026), behavior stress (p=0.022), and improvement of temporary autonomy (p=0.045).Conclusions: The identification after pandemic of high prevalence of burnout, stress levels and certain psychosocial risk factors (role performance and supervision), highlights the need of specific health promotion plan.
- ArticleCognitive Performance in Older-Age Bipolar Disorder: A Cross-Sectional Study of Anticholinergic Load and Clinical Characteristics(Cambridge University Press (CUP), 2026-07-31) Pardossi, Simone; Solé Cabezuelo, Brisa; Ruiz Muñoz, Andrea; Bort, Marta; Rodríguez-Rey, Arturo; Espluga Gálvez, Ainara; González Campos, Meritxell; Valentí Ribas, Marc; Fico, Giovanna; Murru, Andrea; Sánchez Moreno, José; Martínez-Arán, Anabel, 1971-; Fagiolini, Andrea; Vieta i Pascual, Eduard, 1963-; De Prisco, Michele; Montejo Egido, LauraBackground Cognitive deficits are one of the core features of older-age bipolar disorder (OABD). Psychotropic medications may influence cognition, especially in older populations, where anticholinergic effects are relevant. This cross-sectional study aimed to investigate the potential impact of anticholinergic load on cognitive performance in individuals with OABD. Methods One hundred and twenty-one euthymic or partially remitted OABD patients were included. Cognitive performance was assessed using a neuropsychological battery and summarized into attention, processing speed, working memory, visual and verbal memory, and executive functions. Anticholinergic load was assessed using the CRIDECO Anticholinergic Load Scale (CALS), and pharmacological burden was quantified using the defined daily dose (DDD). Associations were examined using hierarchical multivariable linear regression models, considering also relevant clinical covariates. Results The interaction between CALS and DDD was associated with lower visual and verbal memory scores (p = 0.04). Age was inversely associated with cognitive performance across all domains (all p < 0.01). A higher number of manic episodes was associated with poorer attention, visual and verbal memory, and processing speed (all p < 0.01). Lifetime psychotic symptoms were associated with worse working memory (p = 0.02), and higher diazepam-equivalent doses were associated with worse visual and verbal memory performance (p = 0.02). Conclusions Although anticholinergic medications may contribute to cognitive burden, their impact appears dose-related and limited compared with the broader influence of illness-related factors. In OABD patients, prioritizing the management of illness-related characteristics alongside careful pharmacological management may therefore be crucial for preserving cognitive functioning.
- ArticleEducación para la justicia global: Un paradigma en construcción que el sur nos enseñó a nombrar(Universidade Federal de Goiás, 2026-08-26) Muñoz Saavedra, JudithEsta publicación sobre Educación para la Justicia Global: un paradigma en construcción que el Sur nos enseñó a nombrar ofrece a los lectores/as la conferencia inaugural del: “XXIII Seminario de Investigación, Autoevaluación y Seguimiento de Egresados del Programa de Posgrado en Educación de la Facultad de Educación de la Universidad Federal de Goiás”, la cual abordó temas centrales sobre la Educación para la Justicia Global, tales como: diversidad, género y feminismos; cultura de paz y no violencia; derechos humanos, participación ciudadana y gobernanza democrática; justicia económica, social y cognitiva; justicia ambiental y conciencia planetaria; interculturalidad y decolonialidad; bienestar emocional; cuidado de la relación educativa; democracia y equidad digital; enfoque crítico de las tecnologías. La investigadora presenta los resultados de estudios realizados en la Universidad de Barcelona que abordan temas relevantes para el debate internacional contemporáneo en el ámbito de la educación.
- ArticleInterval hypergraphic lattices(Elsevier Ltd., 2026-02-01) Bergeron, Nantel; Pilaud, VincentFor a hypergraph ℍ on [ ] , the hypergraphic poset ℍ is the transitive closure of the oriented skeleton of the hypergraphic polytope △ℍ (the Minkowski sum of the standard simplices △ for all ∈ℍ ). Hypergraphic posets include the weak order for the permutahedron (when ℍ is the complete graph on [ ] ) and the Tamari lattice for the associahedron (when ℍ is the set of all intervals of [ ] ), which motivates the study of lattice properties of hypergraphic posets. In this paper, we focus on interval hypergraphs, where all hyperedges are intervals of [ ] . We characterize the interval hypergraphs for which is a lattice, a distributive lattice, a semidistributive lattice, and a lattice quotient of the weak order.