1,720,954 research outputs found
Valoración de los Indicadores Pronósticos MELD SCORE y Child Pugh, en Pacientes con Hemorragia Digestiva Secundaria a Hipertensión Portal
No full textObjectives: To determine the short and long term efficacy of the survival prognostic indicators, MELD score and Child Pugh, in patients with hemmorage due to portal hyptertension and hepatic cirrhosis.
Methods: A retrospective analysis over time, descriptive, comparative, and observational in approach. Researched at the from Cochabamba
from January, 2006 to December, 2010. A follow up was done on all patients until death or until the last known date of survival.
Results: During the determined time period, 228 patients admitted to the Instituto Gastroenterológico Boliviano-Japonés were included
in the study. These were diagnosed with gastrointestinal bleeding and portal hypertension. The average age was 54.6±38 years. The overall mortality was 49%. From the total number of patients, 67 (29%) died during the first episode of bleeding. Mortality within six weeks since the first episode of bleeding was 91 patients (40%) and mortality after six weeks was 113 patients (47%). Peak mortality was observed 3 months after the first hemorrhage episode.
Conclusions: The MELD score and classification of Child Pugh are useful and precise prediction models for determining fatality risk during the short and long term for patients presenting hemorrhage due to portal hypertension. Age can also be considered a reliable prognostic indicator of mortality.Objetivos: Determinar la utilidad de los indicadores pronósticos de supervivencia a corto y largo plazo, MELD score y Child Pugh, en pacientes con hemorragia por hipertensión portal y cirrosis hepática.
Métodos: Estudio retrospectivo, longitudinal, descriptivo, comparativo y observacional, desarrollado en el Instituto Gastroenterológico Boliviano Japonés de Cochabamba de enero de 2006 a diciembre 2010. Se hizo seguimiento de todos los pacientes hasta su muerte o hasta el día que se tuvo certeza de su supervivencia.
Resultados: Se incluyeron en el estudio 228 pacientes con diagnóstico de hemorragia digestiva e hipertensión portal ingresados en el Instituto Gastroenterológico Boliviano-Japonés. en el periodo de tiempo determinado. La edad media fue de 54.6±38 años. La mortalidad
global fue del 49%. Del total de pacientes, 67 de ellos (29%), fallecieron en el primer episodio de sangrado. La mortalidad dentro de las seis semanas del episodio del sangrado fue del 40% (91 pacientes) y la mortalidad después de las seis semanas fue de 47% (113 pacientes). El pico máximo de mortalidad se observó a los tres meses del primer episodio de hemorragia.
Conclusiones: El score de MELD y la clasificación de Child Pugh son modelos de predicción útiles y precisos para determinar el riesgo de muerte a corto y largo plazo en los pacientes con hemorragia por hipertensión portal. La edad también se puede considerar un buen indicador pronóstico de mortalidad
Valoración de los Indicadores Pronósticos MELD SCORE y Child Pugh, en Pacientes con Hemorragia Digestiva Secundaria a Hipertensión Portal: Pronóstico de Pacientes con Hemorragia Digestiva por Hipertensión Portal
No full textObjetivos: Determinar la utilidad de los indicadores pronósticos de supervivencia a corto y largo plazo, MELD score y Child Pugh, en pacientes con hemorragia por hipertensión portal y cirrosis hepática.
Métodos: Estudio retrospectivo, longitudinal, descriptivo, comparativo y observacional, desarrollado en el Instituto Gastroenterológico Boliviano Japonés de Cochabamba de enero de 2006 a diciembre 2010. Se hizo seguimiento de todos los pacientes hasta su muerte o hasta el día que se tuvo certeza de su supervivencia.
Resultados: Se incluyeron en el estudio 228 pacientes con diagnóstico de hemorragia digestiva e hipertensión portal ingresados en el Instituto Gastroenterológico Boliviano-Japonés. en el periodo de tiempo determinado. La edad media fue de 54.6±38 años. La mortalidad global fue del 49%. Del total de pacientes, 67 de ellos (29%), fallecieron en el primer episodio de sangrado. La mortalidad dentro de las seis semanas del episodio del sangrado fue del 40% (91 pacientes) y la mortalidad después de las seis semanas fue de 47% (113 pacientes). El pico máximo de mortalidad se observó a los tres meses del primer episodio de hemorragia.
Conclusiones: El score de MELD y la clasificación de Child Pugh son modelos de predicción útiles y precisos para determinar el riesgo de muerte a corto y largo plazo en los pacientes con hemorragia por hipertensión portal. La edad también se puede considerar un buen indicador pronóstico de mortalidad
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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