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
ArticleBreu viatge sentimental sobre el pont que vincula Itàlia a Barcelona
(Universitat de València, 2025-07-28) Luti, Francesco
Ressenya del llibre: Solare, notturna e sonora: Literatura i cultura italiana a Barcelona, de l'autora Amaranta Sbardella, trad. Xavier Valls i Guinovart. Barcelona: Ajuntament de Barcelona, 2025, ISBN: 978-8491566021, 207 pàgines.
ArticlePulmonary vascular reactivity in growth restricted fetuses using computational modelling and machine learning analysis of fetal Doppler waveforms
(Nature Publishing Group, 2024-03-11) Vellvé, Kilian; Garcia Canadilla, Patricia; Nogueira, Mariana; Youssef, Lina; Arranz Betegón, Angela; Nakaki, Ayako; Boada, David; Blanco Vich, Isabel; Faner, Rosa; Figueras Retuerta, Francesc; Agustí García-Navarro, Àlvar; Gratacós Solsona, Eduard; Crovetto, Francesca; Bijnens, Bart; Crispi Brillas, Fàtima
The aim of this study was to investigate the pulmonary vasculature in baseline conditions and after maternal hyperoxygenation in growth restricted fetuses (FGR). A prospective cohort study of singleton pregnancies including 97 FGR and 111 normally grown fetuses was carried out. Ultrasound Doppler of the pulmonary vessels was obtained at 24–37 weeks of gestation and data were acquired before and after oxygen administration. After, Machine Learning (ML) and a computational model were used on the Doppler waveforms to classify individuals and estimate pulmonary vascular resistance (PVR). Our results showed lower mean velocity time integral (VTI) in the main pulmonary and intrapulmonary arteries in baseline conditions in FGR individuals. Delta changes of the main pulmonary artery VTI and intrapulmonary artery pulsatility index before and after hyperoxygenation were significantly greater in FGR when compared with controls. Also, ML identified two clusters: A (including 66% controls and 34% FGR) with similar Doppler traces over time and B (including 33% controls and 67% FGR) with changes after hyperoxygenation. The computational model estimated the ratio of PVR before and after maternal hyperoxygenation which was closer to 1 in cluster A (cluster A 0.98 ± 0.33 vs cluster B 0.78 ± 0.28, p = 0.0156). Doppler ultrasound allows the detection of significant changes in pulmonary vasculature in most FGR at baseline, and distinct responses to hyperoxygenation. Future studies are warranted to assess its potential applicability in the clinical management of FGR.
ArticleActivity and space patterns of Pyrenean desman (Galemys pyrenaicus) suggest non-agressive and non-territorial behaviour
(Springer Verlag, 2014-10-01) Melero Cavero, Yolanda; Aymerich i Boixader, Pere; Santulli Sanzo, Giulia; Gosàlbez i Noguera, Joaquim
The Pyrenean desman is considered a flagship species for biodiversity and evolution. However, its scientific knowledge is still under development and currently on debate, particularly in relation to its behavioural ecology and social organization. Based on the previous hypothesis of individual desmans being solitary and territorial, activity and space patterns were considered to be arranged to avoid conspecifics. However, recent insights into the species’ social behaviour revealed non-interspecific avoidance. With this study, we provide novel insights into the activity and space patterns of the desman, and their relation to its social behaviour. A total of 30 individuals were trapped, 18 of which provided informative radiotracking data to study (1) activity behaviour, (2) the proportion of the home range utilized and the distances travelled, and (3) the dominant movement directionality. Activity and space use patterns were affected by daylight and seasonality, but not by sex, age or number of other conspecifics sharing the home range. In contrast to the previous observations, individuals did not show a pattern of directionality in their movements. Noticeably, we observed encounters between individuals without evidence of aggressive behaviour. Our results suggest that desmans do not alter their activity or their spatial behaviour to avoid encounters with conspecifics, as previously suggested. These novel findings provide more evidence of a social structure and organization with social interactions and non-aggressive behaviour. This is of relevance for management actions and for the conservation of this endemic mammal.
ArticleIs the standard Eurasian otter Lutra lutra survey strategy suitable for surveying the American mink Neovison vison?
(Polskiej Akademii Nau, 2013-04-01) Melero Cavero, Yolanda; Palazón, Santiago; Gosàlbez i Noguera, Joaquim; Martelo, Joana; Bonesi, Laura
The American mink Neovison vison is an elusive mustelid that is monitored mostly through the detection of its field signs, namely, footprints and scats. In Europe, the American mink has been often monitored using the standard otter survey strategy developed specifically for the Eurasian otter Lutra lutra, requiring to walk transects of 600 m spaced at least 5 km apart. We tested whether the standard otter survey strategy was appropriate for surveying mink. We studied a high-density population of mink along a 9-km stretch of river between December 2004 and April 2005. Monthly surveys were conducted and scats and footprints were recorded within 100-m sections along the river. The results showed a monthly variation in signs recovery, with the months of December, January and February being the best ones for surveying. Transects of 600 m detected mink between 74 and 90 % of the times in all months, excluding March when detection was as low as 56 %. Taken all together, the results suggest that the standard otter survey strategy was adequate to detect mink, at least in this case where species density was high. The study also highlighted monthly differences in signs detection, suggesting that temporal variations should be taken into account when designing the sampling strategy and the length of the sampling units (transects). In the months immediately following the mating season (and possibly in lower-density mink populations), it may be advisable to increase the length of transects to increase detection of mink.
AltresZIM-ZAM
(Grup d’Innovació Docent ATESI (Facultat de Belles Arts), 2025-11) Universitat de Barcelona. Grup d’Innovació Docent ATESI; Porquer Rigo, Joan Miquel; Grau, Eulàlia (Grau i Costa); Alert Raich, Fina; Porta Salvia, Carme; Petrillo, Lucido; Romero Pineda, Rafael
“ZIM-ZAM” —com a un so inesperat, d’anada i tornada, “plis-plas”— planteja una correspondència epistolar i d’artefactes entre artistes novells del Grau en Belles Arts de la Universitat de Barcelona i artistes participants de l’Associació Susoespai. Creació i Salut Mental.
L’objecte del projecte és poder explorar mútuament els dubtes sobre salut mental i processos creatius, desmuntant estigmes i silencis, en clau d’Aprenentatge Servei. A partir d’una cadena de qüestions contextualitzadores (“Què és per tu la normalitat? Què són per tu les cures? Què és per tu estar bé?”) i d’interessos formals, es creen grups d’intercanvi entre alumnat i participants de l’entitat, que mantenen un diàleg i una anada i tornada de materials entre facultat i seu dels tallers de l’associació al llarg de tot el primer semestre del curs 2024-2025. L’activitat es complementa amb visites creuades als espais de treball, que permeten conèixer les realitats espacials de cadascun, guiades per les persones implicades.
En el 2025-2026, el projecte continua amb l’elaboració d’aquesta mostra itinerant, en règim de co-comissariat amb nous estudiants i “susos”, en diversos espais expositius de la rodalia de Barcelona: Sala d’Exposicions de la Facultat de Belles Arts UB; Can Castells Centre d’Art, Sant Boi de Llobregat; i Biblioteca de Can Llaurador, Teià.
Participants: Artistes, coordinació i talleristes de l’Associació Susoespai. Creació i Salut Mental (Cursos 24-25 i 25-26). Artistes novells i professorat del Grau en Belles Arts, Universitat de Barcelona (Taller de Creació IV, Grups E1 i P1, curs 24-25; Taller de Creació IV, Grup E1, curs 25-25).
Amb la col·laboració de Grup d’Innovació Docent Consolidat ATESI (Art, Territori, Estratègia docent, Sostenibilitat i Intervenció social — GINDC-UB/162), Grup d’Innovació Docent MIMA (Memòria i Matèria Artística — GIND-UB/188) i Grup d’Aprenentatge Servei de la Universitat de Barcelona.