1,720,986 research outputs found
Effect of vaccination on flu bioaerosol spread
No full textTorremorell, Montse; Neira, Victor; Corzo, Cesar; Allerson, Matt; Gramer, Marie. (2012). Effect of vaccination on flu bioaerosol spread. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/139620
Factores asociados a requerimiento de hemodiálisis en pacientes con falla renal aguda inducida por sustancia de contraste yodado en el Hospital Nacional Daniel Alcides Carrión del Callao, 2019
Full text linkLa falla renal aguda (FRA) se manifiesta en los pacientes en hospitales aproximadamente entre un 5 a 7% y en los ingresantes a la Unidad de Cuidados Intensivos (UCI) entre un 10 a 20%. En pocas ocasiones se presenta como insuficiencia única y comúnmente son parte del síndrome de disfunción orgánica múltiple. La FRA condiciona sobrecarga hídrica, retención de azoados, alteraciones del equilibrio ácido base e hiperkalemia, por lo que con frecuencia el paciente con FRA requiere de alguna rehabilitación sustitutoria de la función renal en tanto esta se recupera.1, 2, 3, 4,5
Además, tiene implicación pronostica, ya que su presencia duplica la mortalidad de los pacientes críticamente enfermos, la cual puede llegar a ser hasta del 80%. El uso de terapias de sustitución renal estándar como la hemodiálisis intermitente (HDI) o la diálisis peritoneal tiene limitaciones en los pacientes en estado crítico, ya que la primera no puede ser utilizada en los pacientes con sepsis con punto de partida abdominal y la segunda puede producir alteraciones hemodinámicas graves.5, 6
Identificada la causa y con un manejo adecuado, que va desde una simple hidratación y retiro de noxas hasta la necesidad de apoyo dialítico, se espera el recobro de la función renal total o arbitraria.9,10
Objetivo: reconocer los factores asociados al requerimiento de hemodiálisis en pacientes con falla renal aguda inducida por sustancia de contraste yodado en el Hospital Nacional Daniel Alcides Carrión del Callao, 2019.
Tipo de Estudio: Conforme a su objetivo, es Investigación aplicada. Se distingue por su interés en emplear las comprensiones obtenidas de acuerdo con la categorización de Mantel y Haenszel. Es una investigación analítica, de tipo casos y control.
Diseño de Investigación: el estudio actual es una investigación analítica utilizando recursos primarios y secundarios enfocada en pacientes con FRA que necesitan terapia de sustitución renal (hemodiálisis) tras la exposición a medios de contraste yodado en el Hospital Nacional Daniel Alcides Carrión, 2019. Se consideran Casos aquellos pacientes con FRA inducida por sustancia de contraste yodado que requieran hemodiálisis; y se consideran controles aquellos pacientes con FRA que no requieran hemodiálisisSubmitted by Ernesto Rojas ([email protected]) on 2024-06-20T15:33:00Z
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Previous issue date: 2024Tesi
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Full text linkWe 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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