1,720,960 research outputs found
Medicina y literatura
Get PDFThroughout the humanity's evolution the medicine and the literature have been bound. This work is a tight synthesis on the topic, without exciting doubts for all those that consider the medicine like an art.A lo largo de la evolución de la humanidad la medicina y la literatura han estado ligadas. Este trabajo es una apretada síntesis sobre el tema, sin dudas apasionante para todos aquellos que consideran a la medicina como un arte
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
Infecciones por Aeromonas spp, ¿pensamos en ellas?
Get PDFIn recent decades the reports of high mortality have increased related to intestinal infections caused by Aeromonas spp, especially in immunocompromised patients. Some Microbiology specialists say that it could be due to some existing knowledge about resistance patterns exhibiting these extraintestinal strains, which would prevent to establish a successful empirical treatment. Currently the involvement of these micro-organisms in a variety of human infections have been documented worldwide, which suggest a complex etiology that strains possess a variety of virulence factors.En las últimas décadas han aumentado los informes acerca de una alta mortalidad relacionada a infecciones extraintestinales causadas por Aeromonas spp., en especial en pacientes inmunocomprometidos; algunos Especialistas en Microbiología opinan que podría ser debido al poco conocimiento existente acerca de los patrones de resistencia que exhiben estas cepas extraintestinales, lo que impediría establecer un tratamiento empírico exitoso. Actualmente la participación de estos microorganismos en gran variedad de infecciones humanas ha sido documentada mundialmente, lo que sugiriere una etiología compleja en que las cepas poseen una variedad de factores de virulencia
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
Cuatro años con ventilación artificial mecánica. A propósito de un caso
Get PDF45 years old white male patient healthy till the age of forty. AT this age he began to feel weakness, losse of weight, marked muscular strength decrease of lower extremities which impeded him walking adequately, and moreover presented fasciculations. The patient was attended in the neurological services of clinical- surgical hospital “Arnaldo Milián Castro” of Santa Clara in 1999. In 2001 was admitted in the intermidiate therapy unit for presenting dyspnea, so it was decided to acople him to a mechanical fan servo-900-d in control volume.The patient presented also some symptoms and damage signs in the motor neuron of the spinal cord. The patient was submitted to some studies such as muscular biopsy, electromiograpy and also to the study of sensitive motor nervous conduction what made possible to diagnose an amiotrophic lateral sclerosis. The patient kept this mechanical ventilation during 4 years and 4 months using the same fan above mentioned.Paciente de 45 años, masculino, blanco, con historia de salud previa hasta los 40 años de edad en que comienza a presentar decaimiento, pérdida de peso, disminución de la fuerza muscular (más acentuada en los miembros inferiores) que le impedía deambular adecuadamente y faciculaciones corporales. Ingresa en el Servicio de Neurología del Hospital Provincial Universitario “Arnaldo Milián Castro” de Villa Clara en el año 1999. En el año 2001 es ingresado en la Sala de Terapia Intermedia de nuestro hospital por falta de aire, se decidió entubarlo y acoplarlo a un ventilador mecánico tipo SERVO 900-D en volumen control. El paciente presentó síntomas y signos de daños de la neurona motora de la médula espinal; se le realizaron estudios, dentro de ellos una biopsia muscular y la electromiografía, lo que junto a un estudio de conducción nerviosa motora y sensitivo posibilitó el diagnóstico de esclerosis lateral amiotrófica; se mantuvo en este régimen de ventilación mecánica durante cuatro años y cuatro meses, siempre con el mismo ventilador
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