1,720,960 research outputs found
Lizardo Seiner Lizarrága. Estudios de Historia Medioambiental. Perú, siglos XVI-XX
Get PDFEl libro de Lizardo Seiner Lizárraga, Estudios de historia medioambiental. Perú, siglos XVI-XX explora una temática que hasta hace poco era solo marginalmente tratada dentro de la perspectiva histórica. Indagar sobre la historia del medio ambiente en la larga duración es, por lo tanto, un mérito incuestionable del trabajo realizado por Seiner. El libro en cuestión abre con un ensayo sobre el tema de los desastres naturales y su impacto sobre el medio ambiente. Así, haciendo uso de fuentes pri..
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
Rasgos del discurso sismológico en el Perú, siglos XVI-XVII
No full textEl presente artículo tiene por objeto presentar las ideas centrales que adoptó el discurso sismológico desarrollado en el Perú entre los siglos XVI y XVII a partir de la obra de siete autores que propusieron ideas sismológicas integradas a la tradición occidental. Compusieron un discurso combinado que resultó enriquecido por la conjunción entre pensamiento aristotélico no religioso y pensamiento cristiano.Estos discursos se agrupan en función de tres niveles de información: los que aportan una discusión sobre la causalidad sísmica, los que simplemente informan sobre la actividad sísmica y aquellos que se centran en las manifestaciones preventivas que adoptaron las poblaciones urbanas contra los efectos destructores de la sismicidad. En el primer nivel, la centralidad causal de la teoría pneumática aristotélica fue excluyente frente a otras explicaciones y, en el caso específico de José de Acosta, el más importante de los autores seleccionados, esta lo impregnó fuertemente.The article aims to present the main ideas adopted by the seismological discourse developed in Peru between the sixteenth and the seventeenth centuries. It will do so through the work of seven authors that proposed seismological ideas stemming from the Western tradition. They composed a combined discourse that was enriched by the conjunction between a non-religious Aristotelian and Christian thought. These discourses can be organized according to three levels of information: first, those that present a discussion about seismic causality; second, those that simply inform about seismic activity; third, those that center on the preventive activities adopted by urban populations against the destructive effects of seismicity. On the first level, the causal centrality of the Aristotelian pneumatic theory excluded other forms of explanation and, in the case of José de Acosta, the most important of the chosen authors, that particular theory deeply influences his views.Le présent article vise à présenter les idées centrales adoptées par le discours sismologique qui s’est développé au Pérou entre le XVIe et le XVIIe siècle, à partir de l’œuvre de sept auteurs qui proposèrent des idées sismologiques intégrées à la tradition occidentale. Ils assemblèrent un discours nourri de la conjonction de la pensée aristotélicienne non religieuse avec la pensée chrétienne. Ces discours peuvent se regrouper en fonction de trois niveaux d'informations : ceux qui apportent une discussion sur la causalité sismique, ceux qui simplement informent sur l'activité sismique et ceux qui se centrent sur les manifestations préventives adoptées par les populations urbaines contre les effets destructeurs de la sismicité. En ce qui concerne le premier niveau, la centralité causale de la théorie pneumatique aristotélicienne fût exclusive d’autres explications et dans le cas spécifique de José de Acosta, le plus important des auteurs sélectionnés, elle l’imprégna fortement
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
Conversatorio Online: Reflexiones de Economía Política sobre la actual realidad peruana
No full textConversatorio “Reflexiones de Economía Política sobre la actual realidad peruana” a cargo de nuestro director y docentes: Dr. Andrés Escalante, Dr. Lizardo Seiner y Ma. Jannet Cano
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
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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