1,720,979 research outputs found
Entrevista: Mario Albornoz
No full textActualidad: Invap y legislación por Verónica Engler (pág 4)Panorama: El ADN fósil por Susana Gallardo (pág 8)Comportamiento: Parasitismo en el tordo por Cecilia Draghi (pág 12)Nóbeles: El premio de Química por Ernesto Calvo (pág 15)Educación: El planetario en invierno por Leonardo Moledo (pág 16)Conceptos: La deriva continental por Guillermo Mattei (pág 18)Entrevista a Mario Albornoz por Guillermo Durán (pág 22)Tecnología: Futbol de robots (pág 26)Climatología: Relevamiento climático por Cecilia Draghi (pág 28)Minutas por Ricardo Cabrera (pág 31)Materiales: Plásticos biodegradables por Federico Kukso (pág 32)Perfiles: Liliana Gysin por Verónica Engler (pág 34)Biblioteca (pág 36)Microscopio: Grageas de la ciencia (pág 38)Pseudociencia: Vacas mutiladas por G.G. de Castro (pág 40)Juegos por Pablo Coll y Gustavo Piñeiro (pág 42
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
El estado de la ciencia. Principales indicadores de ciencia y tecnología Iberoamericanos/Interamericanos, 2000. Mario Albornoz y Ernesto Fernández Polcuch (Coordinadores), RICYT- Instituto de Estudios Sociales de la Ciencia y de la Tecnología, Buenos Aires, Argentina, 2001, 262 páginas
Get PDFFil: Hodara, Joseph. Universidad de Bar Ilán; Israel.Fil: Hodara, Joseph. Universidad de Chile; Chile.Se trata de un texto de referencia indispensable para cualquier estudioso de la evolución reciente de la ciencia y de la tecnología en el marco nacional y regional de los países latinoamericanos. El cotejo entre el desempeño de estos con la evolución en Estados Unidos, Canadá, España y Portugal le agregan interés y precisión a las caracterizaciones de los indicadores cuantitativos. La obra representa una suma acumulativa de trabajos efectuados por Mario Albornoz y su equipo de colaboradores que trabajan en el Instituto de Estudios Sociales de la Ciencia y la Tecnología que pertenece a la Universidad de Quilmes, Argentina. La publicación -artefacto elaborado con gran sentido didáctico y estético- fue financiada por el Programa Iberoamericano de Ciencia y Tecnología (CYTED) y por la Organización de Estados Americanos (OEA)
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
Centenario de la Pontificia Universidad Católica de Chile y Breve Historia de la Escuela de Economía
No full textThe purpose of the article is to preserve an informal story of the School of Economics and Business Administration of the Catholic University of Chile. Since 1953 the author has been in direct relation with the School. The emphasis centers around the rela
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
- …
