1,720,955 research outputs found
Características epidemiológicas, clínicas, tomográficas y neurofisiológicas en pacientes con neurocisticercosis parenquimal que presentan crisis epilépticas en el IECN-octubre 2005-enero 2006
Get PDFDescribe las características epidemiológicas, clínicas, tomográficas y neurofisiológicas en los pacientes con neurocisticercosis parenquimal que desarrollan crisis epilépticas. Para ello entrevista a 42 pacientes que cumplieron los criterios de inclusión. Se encontró que 23 eran varones y 19 mujeres, el promedio de edad era 36.02 años, 57 % tuvo crianza domiciliaria de cerdos, 47.62 % no tuvieron alcantarillado, 38.10 % no tuvieron agua potable y 14.29 % tuvieron traumatismo encéfalo craneano con pérdida de conciencia como antecedentes. La epilepsia tuvo una evolución de mas de un año en 50 % de pacientes ,9.52 % presentaron crisis única y las crisis fueron en su mayoría parciales (52.38 %). Con respecto a las lesiones mas frecuentes, estas fueron los quistes (64.29 %), granulomas (45.24 %) y calcificaciones (45.24 %), las formas mixtas se encontraron en el 40.78 %
Hallazgos en imágenes por resonancia magnética de pacientes con tuberculoma intracraneal en un centro privado de Lima, Perú
Get PDFOne of the forms of the inflammatory-infectious condition of tuberculosis, which is a major public health problem in the countries of Latin America, Asia and Africa with potential worldwide spread, is the parenchymal tumor form in the brain, known as tuberculous granuloma or tuberculoma. This form commonly causes mass effect and perilesional edema, which are often confused with the radiological manifestations of other granulomas and neoplastic masses, especially high-grade ones. Therefore, it is necessary to carefully study it using clinical and epidemiological knowledge, laboratory tests and, above all, magnetic resonance imaging. In this article, we share some imaging observations of proven cases of tuberculous granulomas in the brain, examined in a private MRI diagnostic radiological center. That could help in the diagnosis, thus avoiding the progression of the disease with its known consequences and the use of invasive methods.Una de las formas del cuadro inflamatorio-infeccioso de la tuberculosis, que es un problema de salud pública mayor en los países de América Latina, Asia y África con potencial extensión mundial, es la forma parenquimal tumoral en el encéfalo, conocida como granuloma tuberculoso o tuberculoma. Esta forma condiciona comúnmente efecto de masa y edema perilesional, que suelen confundirse con las manifestaciones radiológicas de otros granulomas y masas neoplásicas, en especial las de alto grado. Por ello, es necesario su estudio minucioso empleando el conocimiento clínico, epidemiológico, exámenes de laboratorio y, sobre todo, de imágenes por resonancia magnética. En este artículo, compartimos algunas observaciones por imágenes de casos comprobados de granulomas tuberculosos en el encéfalo, examinados en un centro privado de diagnóstico radiológico por resonancia magnética, que podrían ayudar en el diagnóstico, a fin de evitar el progreso de la enfermedad con sus conocidas consecuencias y el empleo de métodos invasivos
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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