1,720,975 research outputs found
Instrumentos históricos para la enseñanza de la Física: una cronología de la situación en Argentina
No full textThe incorporation of scientific disciplines in Latin American educational curricula,especially in the experimental sciences, has been deeply influenced by the acquisition and useof scientific instruments. In particular the instruments destined to the teaching of physics havebeen key in the efforts aimed at teaching physics in a way different from that imposed byCatholic authorities, who were in charge of the education during the colonial period in the NewWorld. Until middle 19th century, physics was thought only as a speculative science andconsidered as a part of philosophy. Later, it was included as a preparatory study to enteruniversity courses, and at the turn of 20th century it was also oriented to form a critical mass ofyoung students required to carry out scientific research. It is the aim of this paper to report suchprocess in Argentina and to describe the context of each one of the main educational instituteswhere physics was taught. The background investigation for this chronology was oriented to findout what instruments were bought, as well as when and for what purposes they werepurchased. The present review is based on written historical records regarding the early didacticscientific instruments used in the country and refers, in particular, to the collection belonging tothe Physics Museum of La Plata National University.Fil: Von Reichenbach, Maria Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentin
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
La difusión como herramienta de aproximación a una colección de instrumentos científicos
Get PDFElegir los criterios de selección del patrimonio a ser investigado, exhibido, eventualmente intervenido, puede hacerse desde diversos enfoques. En este trabajo presentamos dos ejemplos que desarrollan la renovación de la exhibición permanente y el diseño de una muestra temporaria desarrolladas en el Museo de Física de la Universidad Nacional de La Plata. En ambos casos los instrumentos elegidos para las narrativas de cada muestra cobran nuevos significados que permiten usarlos para transmitir mucho más que los contenidos disciplinares para los que fueron diseñados, posicionándolos en contextos más amplios.The choose of the criteria to select the heritage to be investigated, exhibited, possibly restaured, can be done from different approaches. In this work, we present two examples that develop the renovation of the permanent exhibition and the design of a temporary exposition in the Museo de Física de la Universidad Nacional de La Plata. In both cases, the chosen instruments for the narratives acquire new meanings that allow them to be used to communicate much more than the disciplinary contents for which they were designed, positioning them in broader contexts.Fil: Santamaría, Mariana. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; ArgentinaFil: Von Reichenbach, Maria Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentin
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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