Examinando por Autor "Krauskopf, E."
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Ítem Análisis de la productividad científica iberoamericana en la categoría temática de estudios urbanos durante el período 2005-2014(Revista Espacios, 2016-12) Krauskopf, E.; Funk, R.L.El objetivo de este trabajo fue establecer el aporte que realizan los investigadores iberoamericanos en la categoría temática de estudios urbanos. Para esto se analizaron todos los documentos registrados por la base de datos Web of Science en esta categoría temática durante el periodo 2005-2014. La contribución iberoamericana se incrementó en 10 años, alcanzando un 6% del total publicado en el mundo. La revista Eure fue el medio de comunicación más utilizado por investigadores de ocho países iberoamericanos, contribuyendo al desarrollo de una disciplina de investigación que estudia aspectos urbanos similares al de países anglosajones pero considerando una identidad y diversidad cultural.Ítem Bibliometric analysis of multi-language veterinary journals(Pontificia Universidade Catolica de Campinas, 2017) Krauskopf, E.; Garcia, F.; Funk, R.The purpose of this study was to investigate the association between language and total number of citations found among documents in journals written in English and other languages. We selected all the journals clustered together in the Journal Citation Reports 2014 under the subject category "Veterinary Sciences" and downloaded all the data registered between 1994-2013 by Web of Science for the journals that stated publishing documents in languages other than English. We classified each of these journals by quartile and extracted information regarding their impact factor, language(s) stated, country of origin, total number of documents published, total number of reviews published, percentage of documents published in English and the quartile in which each journal ranked. Of the 48,118 documents published by the 28 journals analyzed, 55.8% were published in English. Interestingly, although most of the journals state being multi-language, most documents published in quartile 1 journals were in English (an average of 99.2%), while the percentage was 93.1% in quartile 2 journals, 62.1% in quartile 3 journals and 27.4% in quartile 4 journals. We also confirmed that citation distribution in these journals was highly skewed. The results of this study suggest that journals should consider adopting English as the main language as this will increase citation counts and the impact factor of the journal.Ítem Expresión molecular del gen NHX1 en respuesta al estrés hídrico y salino en plantas jóvenes de Eucalyptus grandis(Universidad Austral de Chile, Facultad de Ciencias Forestales, 2019) García, X.; Gamboa, M.; Krauskopf, E.Las plantas se encuentran expuestas a diferentes condiciones de estrés abiótico que perjudican su desarrollo. Entre estos destacan la salinidad y la sequía, dado que afectan grandes extensiones de terrenos alrededor del mundo. Chile no escapa a esta realidad, estimándose que el 49,1 % del territorio posee estas características. Con el auge de la industria forestal del país, se torna necesario desarrollar estrategias para aprovechar suelos de menor calidad. En este sentido, es fundamental la compresión de los mecanismos que participan en la tolerancia a salinidad y sequía en especies forestales como Eucalyptus grandis. Con este propósito se determinó la permeabilidad de la membrana celular a través de ensayos de fuga electrolítica, estableciéndose que las plantas exhiben daño después de 12 horas de exposición a estrés salino y después de 10 horas de exposición a estrés osmótico. Asimismo, se cuantificó la expresión génica de un gen especifico (NHX) bajo Condiciones de estrés salino e hídrico en plantas jóvenes de E. grandis, registrándose un incremento de su expresión tanto en tejido radicular como en tejido foliar. Desde una perspectiva fisiológica, la respuesta a estrés abiótico observada es similar a la descrita para otras especies vegetales que poseen un ciclo de vida más corto. Adicionalmente, el aumento de la expresión del gen NHX bajo condiciones de estrés abiótico lo confirma como un potencial candidato para programas de mejoramiento genético para seleccionar especies leñosas tolerantes a estos tipos de estrés.Ítem Higher education, HLRC, pandemics, and racism(Laureate Education, 2020) Burkholder, G.; Krauskopf, E.This letter from the Editorial team discusses the context of HLRC journal operations during the period from January 1, 2020, to June 30, 2020. The editors discuss COVID-19, race-related uprisings, and how these have impacted the journal in the context of higher education.Ítem Ribosomal internal transcribed spacer 2 (ITS2) exhibits a common core of secondary structure in vertebrates and yeast(Oxford University Press, 1999-12) Joseph, N.; Krauskopf, E.; Vera, M.I.; Michot, B.Molecular mechanisms of ITS2 processing, a eukaryotic insertion between the 5.8S and LSU rRNA, remain largely elusive even in yeast. To delineate ITS2 structural and functional features which could be common to eukaryotes, we first produced phylogenetically supported folding models in the vertebrate lineage, then tested them in deeper branchings and, more particularly, among yeasts. ITS2 comparisons between four Teleostei, a Chondrichthyes specimen and two jawless organisms have revealed a common folding architecture in four to five domains of secondary structure emerging from a preserved structural core. This folding, largely reminiscent of ITS2 architecture in mammals, is also preserved in amphibia and in chicken, despite dramatic sequence variations. Preferential conservation is located around a central loop and at the apex of a long stem in the ITS2 3'-half. Interestingly, these two independent structural features contain, respectively, the 3'-ends of the two transient rRNA precursors 8S and 12S RNA identified in mammals, suggesting a preservation of these intermediates of processing over the entire vertebrate group. Surprising similarities between the vertebrate ITS2 folding shape and that of invertebrates as well as protista have made intriguing the significant differences from the yeast model. A detailed comparative analysis including four relatively close species and Schizosaccharomyces pombe, a deep yeast branching, has revealed an alternative phylogenetically supported four-domain folding presenting strong similarities to the vertebrate model. Remarkably, the two best conserved regions of vertebrates have unambiguously preserved counterparts which are also sites for internal processing in yeast. Therefore, molecular mechanisms involved in ITS2 excision in vertebrates and yeast might be more closely related than currently believed and might require a very similar trans-acting machinery.Ítem Scholarly inbreeding in Latin American academically managed journals(Laureate Education, 2020) Krauskopf, E.From a bibliometric perspective, scholarly inbreeding has been identified in journals through the excessive use of both author and journal self-citations. However, editorial bias toward researchers from the same institution as the editorial management team has seldom been considered. According to the Spanish Foundation for Science and Technology, this occurs when a journal publishes more than 20% of documents authored by researchers affiliated with the same institution as the editorial management team. The purpose of this study is to establish the extent to which 81 Latin American journals managed by universities publish intramural documents (defined as those published by its own faculties). Results revealed that 56% of Brazilian journals were not compliant with the 20% benchmark as well as 44% of Colombian journals, 50% of Chilean journals, and 71% of Mexican journals. Interestingly, one third of these journals published the majority of the documents in English. By examining the documents published by these journals and subsequent citations to these articles, it was established that the intramural documents of some journals registered a higher ratio of citations per document in comparison with extramural documents published in the same journals. The results presented in this study provide evidence of inbreeding in some academically managed journals from Latin America. Although no one specific reason can account for this phenomenon, plausible explanations are given that may contribute to its understanding.