1,720,968 research outputs found
First record of Smilodon Lund (Felidae, Machairodontinae) in Tierra del Fuego island (Chile)
Get PDFIn this contribution we describe the first record of Smilodon for Tierra del Fuego Island, and discuss its relevance.Fil: Prevosti, Francisco Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Universidad Nacional de Luján. Departamento de Ciencias Básicas; ArgentinaFil: Martin, Fabiana Maria. Instituto de la Patagonia; ChileFil: Massone, Mauricio. Ministerio de Educación de Chile. Dirección de Bibliotecas, Archivos y Museos; Chil
Procesamiento alimenticio y tecnológico de guanacos (Lama guanicoe) durante el Holoceno tardío : el caso del sitio costero Marazzi 32 (Tierra del Fuego, Chile)
No full textPresentamos el análisis del conjunto de guanacos provenientes del sitio arqueológico Marazzi 32, Isla Grande de Tierra del Fuego. El yacimiento, con dataciones entre 560-635 años AP, destaca por un registro óseo de cetáceos, mayoritariamente localizados en superficie, y la predominancia de guanaco en relación con otros mamíferos marinos, aves y otras especies. Los resultados permitieron confirmar la importancia de los restos de guanaco en la subsistencia y en el aprovisionamiento de materias primas óseas, lo que apoya la teoría económica que tradicionalmente ha considerado que los recursos terrestres jugaron un rol fundamental para los grupos humanos durante el Holoceno tardío. Se discute el interés de la explotación de guanacos en el sitio, el aprovechamiento mayoritario de individuos juveniles y las estrategias de explotación, cadena alimentaria y la gestión tecnológica de la especie.Fil: Sierpe, Víctor. Universidad de Tarapacá. Universidad de Magallanes. Instituto de la Patagonia; Chile.Fil: Morello, Flavia. Universidad de Magallanes. Instituto de la Patagonia; Chile.Fil: Massone, Mauricio. Universidad de Magallanes. Instituto de la Patagonia; Chile.Fil: Palacio, Cristóbal. Universidad de Magallanes. Instituto de la Patagonia; Chile.ALIMENTARY AND TECHNOLOGICAL PROCESSING OF GUANACOS (LAMA GUANICOE) DURING THE LATE HOLOCENE: THE CASE OF COASTAL SITE MARAZZI 32 (TIERRA DEL FUEGO, CHILE). The analysis of the guanaco assemblage recovered from Marazzi 32 archaeological site, Isla Grande de Tierra del Fuego, is presented. The site, dated between 560 and 635 BP, is noteworthy for its record of cetacean bones, mostly found on the surface, and the prevalence of guanacos in relation to other marine mammals, birds and taxa. Results confirmed the importance of guanaco remains in the subsistence and supply of bone raw material, supporting the economic theory that has traditionally considered that land resources played a fundamental role for human groups during the late Holocene. The significance of guanaco ex-ploitation at the site, the greater number of young individuals, and the exploitation strategies, food chain, and technological management of the species are discussed
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
Caracterización de las materias primas líticas de Chorrillo Miraflores y su distribución arqueológica en el extremo meridional de Fuego-Patagonia
No full textEl hallazgo de una fuente primaria de dos materias primas líticas (toba riolítica y toba silicificada) en el valle del Chorrillo Miraflores (Tierra del Fuego, Chile) ha promovido el desarrollo de investigaciones conjuntas entre equipos multidisciplinarios internacionales. Se ha explorado sistemáticamente la fuente, caracterizado su composición petrográfica y geoquímica, y se han identificado los dos tipos de roca en conjuntos artefactuales de la isla Grande de Tierra del Fuego. Proyectos recientes han revelado su presencia en otras colecciones arqueológicas de Patagonia meridional, lo cual amplía las perspectivas de discusión de aspectos tecnológicos, de interacción cultural, circulación y uso de esas materias primas. Este trabajo sintetiza los resultados alcanzados en estas tareas: en él se incluye información que muestra que tanto la toba riolítica como la silicificada poseen una amplia distribución en la isla Grande, ya que alcanzan la costa meridional e incluso el exterior de la isla. Las dataciones indirectas circunscriben su uso a los últimos tres mil años. Por otra parte, los datos geoquímicos obtenidos de muestras naturales y arqueológicas exhiben pequeñas variaciones que sugieren que, si bien la señal geoquímica de estas rocas
es generalmente homogénea, tres subgrupos geoquímicos pueden ser diferenciados
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
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