Artículos de revistas
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Esta colección incluye artículos de revistas de profesores de la Pontificia Universidad Católica de Chile, publicados en revistas nacionales y extranjeras.
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- ItemThe Ice Again: Epistemic Exclusion of Feminisms in Academic Spaces(The Feminist Press, 2025) Rojas-Müller, Fernanda; Muñoz-García, Ana Luisa; Gómez-Guinart, KyuttzzaIn this essay, we ask ourselves about the material conditions that enable the creation of feminist knowledge, its advances and marginalizations interwoven in neoliberal, racist, and heterocispatriarchal academia. Based on a study of gender and knowledge from a feminist perspective (2021–24), this article elaborates a collective account from researchers on theepistemic exclusion of gender and feminisms in Chilean and Argentinian academic spaces. This account, narrated in the first person and constructed out of quotations from researchers of gender and feminism, moves between the individual and the collective, politicizing gender issues to concretize the forms of epistemic exclusion in a delocalized way. Not only is this exclusion manifested in direct violations against people, but it is also structurally located, such as in the impossibility of mainstreaming frameworks of gender into curricula and in the difficulties of obtaining funding or negatively associating these perspectives with activism. Amid the international advance of the far right, it is urgent to discuss the epistemic status of feminist knowledge in academia.
- ItemComunicación espectral(2025) Condeza, Ana RayénEn tiempos de saturación comunicativa y de virtualidad, algunos autores denominan comunicación espectral a los variados modos y procesos mediante los cuales nos relacionamos (Reck, 1999; Falcón et al., 2020). Cada una de las contribuciones de este número puede considerarse como un punto visible y actual de ese espectro de la comunicación, con la particularidad de que reflejan las distintas miradas de 39 autores sobre su estudio en Iberoamérica, específicamente de Argentina, Brasil, Chile, Colombia, Costa Rica, España y Perú. Las investigaciones de este número incluyen focos como el periodismo, la evitación de las noticias, la relación de los jóvenes con la información y con las redes sociales, la comunicación de la ciencia e investigaciones sobre la plataformización de la vida social en el contexto de los algoritmos y de la inteligencia artificial, así como de la polarización política en espacios digitales. Como afirmó Waisbord (2019) al conceptualizar a la comunicación desde una perspectiva humanista como una post-disciplina, cada artículo constituye una panorámica de su “considerable diversidad analítica y temática, al tiempo que intentamos encontrar puntos de intersección, para reunir líneas de investigación dispares”
- ItemA recent and rapid genome expansion driven by the amplification of transposable elements in the Neotropical annual killifish Garcialebias charrua(2025-11-27) Gajardo Escobar, Felipe Andrés; Valdivieso, Camilo; Di Genova, Alex; Pereiro, Luisa; Arezo, Maria Jose; Nardocci, Gino; Rojas, Natalia; Gutiérrez, Verónica; Papa, Nicolás G.; Berois, Nibia; Orellana, Alex; Gutierrez Ilabaca, Rodrigo Antonio; González, Mauricio; Mendez, Marco A.; Montecino, Martín; Hodar, Christian; Glavic, Alvaro; Maass, Alejandro; García, Graciela; Allende, Miguel L.Abstract Background Neotropical annual killifish survive in seasonal ponds due to their ability to undergo embryonic diapauses in the dry season and grow, reproduce and die in the span of a few months during the rainy season. The Austrolebias genus group is endemic to the South American basins and shows remarkable speciation and genetic plasticity. Within this fish group Garcialebias charrua is sympatric with another annual killifish, Cynopoecilus melanotaenia, belonging to a tribe that diverged about 25 million years ago. Despite being closely related species within the Rivulidae family, both species show important differences in genome size. Here, we explore the genomic structure of these species to understand their evolution and unique adaptations. Results We have sequenced the genomes of G. charrua and C. melanotaenia and determined that they show important structural differences between them. While C. melaotaenia has a genome size of around 1 Gb, similar to that of most characterized teleosts, G. charrua has undergone an evolutionarily recent and massive genome expansion, with a size three times larger (3 Gb). The expansion of the genome in G. charrua has occurred due to amplification of repetitive elements, most recently from the LINE class of elements. We explore and characterize in detail the contribution to genome expansion of repetitive elements at the level of superfamilies, as well as analyze the relationship between these elements and coding genes in G. charrua. We also examine the selection pressures on gene sequences and identify functions that are under positive or purifying selection, and compare these data with that derived from other species. Conclusions Our study adds a crucial element to the understanding of annual fish evolution and life history. We show that the genetic variability and plasticity in G. charrua is accompanied by a recent genome-wide expansion with an important contribution of repetitive elements. By comparing these findings with data from other species, we show that G. charrua has undergone bursts of repetitive element expansion, with specific superfamilies of retrotransposons and DNA transposons being the most prevalent and recent. In addition, we characterize genes that are potentially implicated in adaptive traits because of their interaction with mobile elements or because they display evidence of intensified selection. These genes are candidates for functional studies aimed at unraveling the genetic basis of annualism.
- ItemDemographic and Tumor Characteristics of Lentigo Maligna and Lentigo Maligna Melanoma for Presurgical RCM Mapping: A Retrospective Study(2026) Kremer, Noa; Córdova, Miguel; Navarrete Dechent, Cristián Patricio; Marghoob, Ashfaq A.; Dusza, Stephen W.; Rossi, Anthony M.; Lee, Erica H.; Chen, Chih‐Shan Jason; Halpern, Allan C.; Nehal, Kishwer S.
- ItemContinuity of primary care and end-of-life care costs in dementia: a retrospective cohort study(2026) Leniz Martelli, Javiera; May, Peter; Gulliford, Martin; Sleeman, Katherine E.Background: End-of-life dementia care costs are expected to rise as populations age. Higher continuity of care with GPs is associated with reduced hospital admissions at the end of life, but the impact on costs is not known.Aim: To explore the association of continuity of primary care on hospital and general practice costs in the last year of life among people with dementia.Design and setting: A retrospective cohort study using a primary care dataset linked with national hospital and mortality records. Adults (aged >18 years) who died in England between 2009 and 2018 with a diagnosis of dementia were included.Method: The Continuity of Care Index (COCI) of GP contacts in the last year of life was calculated, which measures patterns of care across GPs. Hospital and general practice costs were calculated using average national tariffs. Costs were modelled using a multivariable generalised linear model, estimating the average marginal effect of perfect continuity over non-continuity of care.Results: In total, 32 799 people were included. The mean age at death was 86.60 years (standard deviation [SD] 8.04 years), 64.2% (n = 21 057) were female, and 56.6% (n = 18 556) lived in care homes before death. The average COCI score was 0.38 (SD 0.25). People with perfect continuity had on average £2097 (95% confidence interval = 1319 to 2875) lower total costs in the last year than those with non-continuity of care.Conclusion: Continuity of care with GPs is associated with lower total costs and might contribute to reduce hospital admissions and costs among people with dementia in their last year of life.