RESUMO

Introducción: la evaluación científica y los estudios bibliométricos han devenido en procesos de gran interés e importancia debido a que la investigación científica es un indicador de calidad para las instituciones científicas y académicas. La Universidad de Ciencias Médicas de Granma es una institución de Educación Médica Superior cuya finalidad es la formación y desarrollo de las Ciencias Médicas en la región basada en la integración docencia-asistencia-investigación. Es por esto que se hace necesario comprender el impacto y el comportamiento de su producción científica desde una perspectiva internacional. Objetivo: analizar la producción científica de la Universidad de Ciencias Médicas de Granma en la base de datos bibliográfica Scopus. Métodos: se realizó un estudio bibliométrico retrospectivo y de carácter descriptivo de toda la producción científica de la Universidad de Ciencias Médicas de Granma, usando como fuente de información la base de datos Scopus. Resultados: se identificó una alta concentración de trabajos en idioma español y en revistas cubanas de Q4 aunque predominaron las investigaciones originales. La colaboración internacional se comportó favorable. Por último, el posicionamiento internacional de la universidad es todavía insustancial. Conclusiones: la producción científica de la UCMG presenta valores moderados en cuanto a los indicadores de productividad, visibilidad e impacto. Este comportamiento presenta una marcada tendencia al aumento para los últimos años y se prevé un mejoramiento de estos patrones en años futuros.

Introduction: scientific evaluation and bibliometric studies have become processes of great interest and importance because scientific research is a quality indicator for scientific and academic institutions. The University of Medical Sciences of Granma is an institution of Higher Medical Education whose purpose is the training and development of Medical Sciences in the region based on teaching-assistance-research integration. This is why it is necessary to understand the impact and behavior of its scientific production from an international perspective. Objective: to analyze the scientific production of the Granma University of Medical Sciences in the Scopus bibliographic database. Methods: a retrospective and descriptive bibliometric study of all the scientific production of the University of Medical Sciences of Granma was carried out, using the Scopus database as a source of information. Results: a high concentration of works in the Spanish language and in Cuban Q4 journals was identified, although original research predominated. International collaboration behaved favourably. Finally, the international positioning of the university is still insubstantial. Conclusions: the scientific production of the UCMG presents moderate values ​​in terms of indicators of productivity, visibility and impact. This behavior shows a marked upward trend in recent years and an improvement in these patterns is expected in future years.

Introdução: a avaliação científica e os estudos bibliométricos tornaram-se processos de grande interesse e importância, pois a pesquisa científica é um indicador de qualidade para as instituições científicas e acadêmicas. A Universidade de Ciências Médicas do Granma é uma instituição de Ensino Superior Médico cuja finalidade é a formação e o desenvolvimento das Ciências Médicas na região com base na integração ensino-assistência-pesquisa. Por isso, é necessário compreender o impacto e o comportamento de sua produção científica a partir de uma perspectiva internacional. Objetivo: analisar a produção científica da Universidade de Ciências Médicas do Granma na base de dados bibliográfica Scopus. Resultados: identificou-se alta concentração de artigos em periódicos Q4 espanhóis e cubanos, emboratenha predominado pesquisas originais. A colaboração internacional foi favorável. Por fim, o posicionamento internacional da universidade aindaé insubstancial. Conclusões: a produção científica da UCMG apresenta valores moderados em termos de indicadores de produtividade, visibilidade e impacto. Esse comportamento mostra uma acentuada tendência de aumento nos últimos anos e espera-se uma melhora nesses padrões nos próximos anos.

RESUMO

Background: We evaluated the implications of different approaches to characterize the uncertainty of calibrated parameters of microsimulation decision models (DMs) and quantified the value of such uncertainty in decision making. Methods: We calibrated the natural history model of CRC to simulated epidemiological data with different degrees of uncertainty and obtained the joint posterior distribution of the parameters using a Bayesian approach. We conducted a probabilistic sensitivity analysis (PSA) on all the model parameters with different characterizations of the uncertainty of the calibrated parameters. We estimated the value of uncertainty of the various characterizations with a value of information analysis. We conducted all analyses using high-performance computing resources running the Extreme-scale Model Exploration with Swift (EMEWS) framework. Results: The posterior distribution had a high correlation among some parameters. The parameters of the Weibull hazard function for the age of onset of adenomas had the highest posterior correlation of -0.958. When comparing full posterior distributions and the maximum-a-posteriori estimate of the calibrated parameters, there is little difference in the spread of the distribution of the CEA outcomes with a similar expected value of perfect information (EVPI) of $653 and $685, respectively, at a willingness-to-pay (WTP) threshold of $66,000 per quality-adjusted life year (QALY). Ignoring correlation on the calibrated parameters' posterior distribution produced the broadest distribution of CEA outcomes and the highest EVPI of $809 at the same WTP threshold. Conclusion: Different characterizations of the uncertainty of calibrated parameters affect the expected value of eliminating parametric uncertainty on the CEA. Ignoring inherent correlation among calibrated parameters on a PSA overestimates the value of uncertainty.

RESUMO

Vehicle Routing Problems (VRP) comprise many variants obtained by adding to the original problem constraints representing diverse system characteristics. Different variants are widely studied in the literature; however, the impact that these constraints have on the structure of the search space associated with the problem is unknown, and so is their influence on the performance of search algorithms used to solve it. This article explores how assignation constraints (such as a limited vehicle capacity) impact VRP by disturbing the network structure defined by the solution space and the local operators in use. This research focuses on Fitness Landscape Analysis for the multiple Traveling Salesman Problem (m-TSP) and Capacitated VRP (CVRP). We propose a new Fitness Landscape Analysis measure that provides valuable information to characterize the fitness landscape's structure under specific scenarios and obtain several relationships between the fitness landscape's structure and the algorithmic performance.

RESUMO

RESUMEN Objetivo. Analizar la producción científica en Medicina Veterinaria y Zootecnia en Colombia en el período 2010-2019. Materiales y métodos. Se realizó un estudio descriptivo transversal retrospectivo, mediante el análisis bibliométrico de los artículos publicados en nueve revistas del área de la Medicina Veterinaria y Zootecnia en Colombia. La información se obtuvo mediante la búsqueda en internet de la página web de cada revista. Los artículos incluidos fueron artículos originales, revisiones de literatura, comunicaciones breves, casos clínicos y editoriales. Resultados. El total de artículos fue 3.000; 2.250 (75%) publicados en español, 673 (22.4%) en inglés y 77 (2.6%) en portugués. 2.282 (76.1%) fueron originales, 224 (7.5%) revisiones de literatura, 165 (5.5%) casos clínicos, 105 (3.5%) comunicaciones breves, 204 (6.8%) editoriales y 21 (0.6%) otros. Hubo 10.296 autores; 7.109 (69%), nacionales y 3.187 (31%) extranjeros. Del total de autores, 6.659 (64.7%) fueron hombres; 3.199 (31%) mujeres y 438 (4.3%) sin identificación; con un promedio de 3.38 autores/artículo. Las entidades públicas aportaron el 77.9% de la producción científica y las privadas el 22.1%. Las áreas con mayor número de publicaciones fueron zootecnia, salud animal, agricultura y fauna silvestre. El top 5 de las filiaciones de los autores correspondió a universidades públicas. Conclusiones. Las revistas que publican en inglés consiguen un mejor posicionamiento internacional y en ellas publican el mayor número de autores extranjeros. Los artículos más publicados fueron los originales. El top 10 de los artículos más citados arrojó un total de 810 citas que contribuyen con la internacionalización de las revistas colombianas y de Colombia.

ABSTRACT Objective. Analyze the scientific production in Veterinary Medicine and Animal Husbandry in Colombia in the period 2010-2019. Materials and methods. A retrospective cross-sectional descriptive study was carried out, through the bibliometric analysis of articles published in nine journals in the area of Veterinary Medicine and Animal Husbandry in Colombia. The information was obtained by searching theinternet for each journal's website. The articles included were original articles, literature reviews, brief communications, clinical cases and editorials. Results. The total number of articles was 3.000; 2.250 (75%) published in Spanish, 673 (22.4%) in English and 77 (2.6%) in Portuguese. 2.282 (76.1%) were original, 224 (7.5%) literature reviews, 165 (5.5%) clinical cases, 105 (3.5%) brief communications, 204 (6.8%) editorials and 21 (0.6%) others. There were 10,296 authors; 7.109 (69%), nationals and 3.187 (31%) foreigners. Of the total Authors, 6.659 (64.7%) were men; 3.199 (31%) women and 438 (4.3%) without identification, with an average of 3.38 authors/article. Public entities contributed 77.9% of scientific production and private entities 22.1%. The areas with the highest number of publications were zootechnics, animal health, agriculture and wildlife. The top 5 of affiliations of the authors corresponded to public universities. Conclusions. The journal that publish in English achieve a better international positioning and in them the largest number of foreign authors publishes. The most published articles were the original ones. The top 10 of the most cited articles yielded a total of 810 citations that contribute to the internationalization of Colombia and Colombian journals.

RESUMO

En el estudio se brindan algunos conceptos sobre el análisis de información. También se ofrecen algunas características de los especialistas que laboran en esta área. Se abordan los métodos de investigación cuantitativa y cualitativa, como aristas de la Metodología de la Investigación y se exponen los conceptos y componentes de ambos métodos. Por otro lado, se hace una valoración de las ventajas y desventajas de cada uno de estos métodos para su utilización en el análisis de información.

The study provides some concepts on the information analysis and also some characteristics of the specialists working in this sphere. The quantitative and qualitative research methods, as lines of the Research Methodology, as well as the concepts and components of both methods were described. On the other hand, an assessment was made on the advantages and disadvantages of each of these methods with a view to using them in the information analysis.