1,721,174 research outputs found
Estructura socioeconómica y laboral de los migrantes en Colombia: discusión entre teoría y realidad
Full text linkFil: Barrera Escobar, Alejandro. Universidad de Manizales. Facultad de Ciencias Contables, Económicas y Administrativas; Argentina.Fil: Barrera Escobar, Alejandro. Universidad Nacional de Córdoba. Facultad de Ciencias Económicas; Argentina.Los estudios poblacionales sobre migraciones generalmente se inscriben alrededor una corriente teórica de interpretación para entender y explicar en causas y consecuencias el fenómeno del desplazamiento humano. La restricción de dicho enfoque es delimitar la migración a una visión estricta de un fenómeno que en esencia es un hecho social. De este modo, la presente investigación busca generar una conexión entre las diversas teorías sociales de la migración, partiendo de un debate interno en cada una, y la realidad del fenómeno para Colombia desde sus estructuras socioeconómicas, utilizando fuentes de
información secundaria, principalmente censos de población y encuestas continuas de hogares que permiten identificar a los sujetos migrantes internos e internacionales, exceptuando del análisis a los emigrantes colombianos. Ahora bien, dicha discusión se hace sobre la base de una reflexión propia acerca de fuerzas estructurantes de desigualdad que han dominado el sistema de organización económica y social, siendo el mercado laboral el principal canal de transmisión, en donde los migrantes son agentes sociales que padecen igualmente de estas desigualdades y, en forma de reproducción social, trasladan sus afectaciones a los sitios y mercados de destino. Por medio de la articulación entre la
revisión teórica, análisis descriptivos y métodos estadísticos, se pueden descubrir dichas fuerzas de desigualdad para la migración en Colombia, conectándose con las teorías de la migración, presentando un valor agregado en la investigación de la migración para Colombia, que como se muestra en los antecedentes en este trabajo, es relativamente nueva y se ha concentrado en unas líneas específicas fundamentalmente.2024-03-21Fil: Barrera Escobar, Alejandro. Universidad de Manizales. Facultad de Ciencias Contables, Económicas y Administrativas; Argentina.Fil: Barrera Escobar, Alejandro. Universidad Nacional de Córdoba. Facultad de Ciencias Económicas; Argentina
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
Chromosome number in Halophytum ameghinoi (Halophytaceae)
Full text linkThe chromosome number and karyotype of Halophytum ameghinoi (Speg.) Speg. was found to be 2n = 24 and 12 m+ 10 sm+ 2t, respectively. Meiosis was regular and 12 bivalents were observed. The relationships of this monotypic family are briefly discussed.Fil: Hunziker, Juan Héctor. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica Darwinion. Academia Nacional de Ciencias Exactas, Físicas y Naturales. Instituto de Botánica Darwinion; ArgentinaFil: Pozner, Raúl Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica Darwinion. Academia Nacional de Ciencias Exactas, Físicas y Naturales. Instituto de Botánica Darwinion; ArgentinaFil: Escobar, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica Darwinion. Academia Nacional de Ciencias Exactas, Físicas y Naturales. Instituto de Botánica Darwinion; Argentin
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
ESCOBAR, Alejandro G.
No full textAlejandro G. Escobar felicita al Gral. PEC por su triunfo en las elecciones presidenciales
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
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