Repositori Obert UdL
The institutional repository collects, manages, disseminates and preserves publications in open access derived from the academic and research activity of the University of Lleida.
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Open Access
Endemic caseous lymphadenitis in a wild Caprinae population
(Wiley, 2017-04-22) Varela Castro, Lucía; Lara-Vergara , Jonathan; Ortega, Nieves; Salinas Lorente, Lazaro Jesus; Colom-Cadena, Andreu; Lavín, Santiago; Tizzani , Paolo; Velarde, Roser; Serrano Ferron, Emmanuel; Mentaberre García, Gregorio
Between 2010 and 2013, an outbreak of caseous lymphadenitis (CLA) occurred in a captive stock of Iberian ibexes (Capra pyrenaica, Schinz 1838) maintained for conservation purposes in the National Game Reserve ‘Ports de Tortosa i Beseit’ (PTB), northeastern Spain. The aim of this study was to assess the CLA status in the free-ranging donor population of ibexes. An ELISA test to detect antibodies to CLA was performed in 360 hunter-harvested ibexes between 2007 and 2013. A spatial analysis and recursive partitioning approaches with regression tree models were used to explore CLA-associated risk factors. Nineteen per cent of ibexes had antibodies to CLA. Significant differences in seroprevalence were observed among game management areas but no clear trends of CLA occurrence were observed over the study period. Ibexes from areas of higher population density and living close to aggregation points displayed a higher probability of testing positive to CLA. These results suggest that CLA is endemic in the Iberian ibex population inhabiting PTB and density-dependent risk factors. To the best of our knowledge, this is the first record of CLA maintenance in a free-ranging wild Caprinae population.
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Open Access
Quantifying Relevance in Art Exhibition Systems at the Turn of the Twentieth Century: A Case Study of a Cultural Network Approach
(Open Library of Humanities, 2025-01-01) Solé i Martí, Esther
This paper presents a digital humanities framework for the study of the art exhibition phenomena in Europe in the late nineteenth and first half of the twentieth centuries, which deploys a mixed-methods approach based upon the concept of relevance. This matter is examined from the perspective of art history, previous contributions are discussed, and the rationale for the proposed framework is specified. After modelling the exhibition phenomenon as a cultural network, the calculation of a relevance index is developed and the defined attributes, values, and weights used in this method are thoroughly described. Finally, this conceptualization is tested on a case study of a dataset that comprises 2,845 solo exhibitions held in Barcelona (Spain) and surrounding municipalities between 1890 and 1938, setting grounds for improvement through future iterative work.
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Open Access
New insights into the epidemiology of Streptococcus suis in pig production systems using whole genome sequencing
(Elsevier, 2025) Vilaró, Anna; Karstensen, Kasper Thystrup; Serra, Laia; Solé, Emma; Seró Pérez, Ingrid; Novell, Elena; Tarancón, Vicens; Cavaco, Lina; Gonzalez-Escalona, Narjol; Migura-García, Lourdes; Fraile Sauce, Lorenzo José
Streptococcus suis (S. suis) is a major pathogen for pigs, causing large economic losses to the swine industry. Moreover, this bacterium has a zoonotic potential, being capable of infecting humans in close contact with pigs or, less frequently, through contact with pork products. Given its importance in both veterinary and public health, S. suis remains a key topic of research. This study explores the genetic characteristics of 154 S. suis isolates obtained from clinical samples collected from pigs between 2018 and 2022. Whole genome sequencing (WGS) allowed a comprehensive analysis of the S. suis population in Spain, including detection of serotype, sequence type (ST), antimicrobial resistance genes, and virulence-associated genes. This approach also explored the vertical transmission of this pathogen through vertically integrated pyramids, as evidenced by associations between grandmother and mother sow farms, and phylogenetic groups, serotypes, and STs. Our analysis revealed that serotype 9 was the most prevalent in our strain collection, predominantly associated with ST123. Notably, the three most significant virulence genes, encoding the extracellular protein factor (EPF), the muramidase-release protein (MRP), and suilysin (SLY), were not consistently present in all clinical isolates. Regarding antimicrobial resistance, no phenotypic resistance was observed to ceftiofur or florfenicol, while observing low resistance to ampicillin (0.6 %) and enrofloxacin (2.6 %), intermediate resistance to penicillin (22.1 %), and high percentage of non-wild-type isolates to trimethoprim-sulfamethoxazole (57.1 %), and doxycycline (96.1 %). The most prevalent antimicrobial resistance genes (ARGs) were tet(O) (85.1 %) and erm(B) (86.4 %), conferring resistance to tetracyclines and macrolides, respectively, although macrolides were not included in the phenotypic testing. Overall, this study provides key epidemiological insights into this significant systemic pathogen within the Spanish swine population. The findings underscore the importance of understanding sample origins, such as grandmother and mother sow farms, to develop an effective antimicrobial stewardship program for managing S. suis-associated diseases.
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Open Access
“Escriure és viure amb més intensitat”: conversa sobre la creativitat i el pas del temps amb Maria Barbal
(Universitat de Barcelona, Facultat de Filologia i Comunicació, 2019-12-18) Oró Piqueras, Maricel
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Open Access
Introspecció lingüística en els reculls de lèxic ribagorçans
(Wydawnictwo Uniwersytetu Wrocławskiego Sp. z o.o., 2024-02-14) Suïls, Jordi
Aquest article aporta evidències en relació amb la varietat ribagorçana del català. En concret, sobre quina percepció en tenen els seus parlants. Ho observem sota l’abast teòric del concepte de cronotop, com a marc espaciotemporal que confereix el valor d’indicadors socials a les variables lingüístiques. Aquestes evidències venen, en part, de l’observació participativa d’activitats que entitats socials o individus han anat desenvolupant en relació amb el dialecte. La nostra font principal són compilacions de lèxic, fetes espontàniament per parlants no especialistes en llengua, que ens donen dades (1) sobre la consciència de canvi lingüístic des de la introspecció dels seus autors al llarg de dues generacions, i (2) sobre la identificació d’alguns elements que han esdevingut clarament emblemàtics del geolecte. El desvellament d’aquesta autopercepció s’explica per la presència contrastiva de la varietat estàndard. Aquest és el cas en el context administratiu català, on aquella varietat és present en els usos formals i acadèmics. Es pot confirmar en comparar el cas amb els contextos veïns de l’occità a l’Aran i del català sota l’administració aragonesa, on no trobem compilacions com les que hem assenyalat més amunt.