Browsing by Author "Rojas, Carlos"

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    Impact of Delirium on Short-Term Mortality in Elderly Inpatients: A Prospective Cohort Study
    (ELSEVIER SCIENCE INC, 2009) Gonzalez, Matias; Martinez, Gabriel; Calderon, Jorge; Villarroel, Luis; Yuri, Francisca; Rojas, Carlos; Jeria, Alvaro; Valdivia, Gonzalo; Marin, Pedro Paulo; Carrasco, Marcela
    Background: Delirium is an important problem especially in older medical inpatients. Objective: The authors asked whether delirium and its duration are associated with higher mortality in a 3-month follow-up period. Method: In this prospective cohort study, inpatients age 65 and older were assessed every 48 hours with the Confusion Assessment Method. Results: Of 542 patients enrolled, 192 (35.4%) developed delirium. After 3 months, mortality in the delirium cohort was 25.9%, and in the nondelirium cohort was 5.8%. Delirium was independently associated with mortality, and increased by 11% for every 48 hours of delirium. Conclusion: Delirium and increased delirium durations are significantly associated with higher mortality. (Psychosomatics 2009; 50: 234-238)
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    TelarKG: a knowledge graph of Chile's constitutional process
    (2024) Angles, Renzo; Calisto, Vicente; Díaz, Javiera; Ferrada, Sebastián; Hogan, Aidan; Pinto, Alexander; Reutter de la Maza, Juan Lorenzo; Rojas, Carlos; Rosales-Méndez, Henry; Sarmiento, Hernán; Toussaint, Etienne; Vrgoc Domagoj
    In this paper we present TelarKG, a knowledge graph (KG) that consolidates multiple sources of information regarding the Chilean Constitutional process, particularly about the work of the members of the Constitutional Convention. TelarKG contains a wide range of public data, such as the materials from the commissions and information about the members' interventions and votes. In addition, the KG has been enriched with online user-generated content including posts from social networks related to the constitutional process, and transcriptions from the YouTube videos of the plenary sessions. Among other features, TelarKG leverages the semantic similarity search capabilities of the MillenniumDB endpoint to compute text similarity among convention members' Twitter messages. Additionally, we employ Entity Linking techniques to identify references to members of the Convention and Parties within these messages. TelarKG constitutes one of the most comprehensive historical archives on a political event, enabling users to query and navigate through diverse aspects of Chile's constitutional process.