1,721,150 research outputs found
Tableau de la situation économique du Mexique, d'après Edmundo Flores, Enrique Perez Lopez, Hugo Rangel Couto, Eduardo Hornedo et des publications de la Banque du Mexique et de la Banque Nationale du Commerce Extérieur du Mexique
No full textDécouflé Lucile. Tableau de la situation économique du Mexique, d'après Edmundo Flores, Enrique Perez Lopez, Hugo Rangel Couto, Eduardo Hornedo et des publications de la Banque du Mexique et de la Banque Nationale du Commerce Extérieur du Mexique. In: Tiers-Monde, tome 4, n°15, 1963. pp. 499-515
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
Considerations on the ichthyofauna of the Uruguay River basin: Hemiancistrus fuliginosus Cardoso & Malabarba, 1999 (Loricariidae: Ancistrinae)
No full textThe genus Hemiancistrus occur in basins in South America. In this work analyses the distribution of the genera in the Argentina and realize considerations of the icthyofauna of the cuenca to the Uruguay river.Fil: Miquelarena, Amalia Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; ArgentinaFil: Lopez, Hugo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentin
José Gurvich
No full textEsta serie tiene como propósito mostrar diferentes expresiones artísticas relacionadas con la Ictiología nacional y regional, generadas en diferentes épocas y que surgen por diversas motivaciones personales que, en algún caso, muestran casi con exactitud a los modelos que inspiraron la obra, en otras, por lo contrario, responden a la imaginación y creatividad del autor. En este caso tomamos una imagen de Tomás Gurvich artista uruguayo de origen lituano quién fuera uno de los discípulos preferidos del maestro oriental Joaquín Torres García. Sólo me resta invitar a quienes quieran sumarse a esta iniciativa, se acerquen con sus aportes para consolidar esta idea, ya que podría ser otro instrumento de difusión del conocimiento de nuestra disciplina a los diferentes estamentos de la sociedad.Fil: Lopez, Hugo Luis. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo; ArgentinaFil: Ponte Gomez, Justina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin
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
Peces subterráneos de Sudamérica
Get PDFEn el mundo acuático subterráneo, en todos los continentes menos la Antártida, se ha descubierto que viven peces, en ríos, lagunas y, notablemente, en las capas freáticas o acuíferos.En Sudamérica solo se sabe hoy de un puñado de especies, una encontrada hace poco en Salta.Fil: Fernandez, Luis Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Instituto de Biodiversidad Neotropical. Universidad Nacional de Tucuman. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Instituto de Biodiversidad Neotropical. Instituto de Biodiversidad Neotropical; Argentina. Fundación Miguel Lillo; ArgentinaFil: Bize, Julieta. Universidad Nacional de Catamarca. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Lopez, Hugo Luis. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentin
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