1,721,109 research outputs found

    La divulgación de la química en tres obras de Alejandro Navarro Yañez

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    This text aims to highlight three popular science books by Alejandro Navarro, especially those focused on chemistry.Este texto busca mostrar los aspectos destacados de tres obras relacionadas con la divulgación de la ciencia, especialmente de química, escritas por Alejandro Navarro

    La divulgación de la química en tres obras de Alejandro Navarro Yañez

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    Este texto busca mostrar los aspectos destacados de tres obras relacionadas con la divulgación de la ciencia, especialmente de química, escritas por Alejandro Navarro

    Crítica a las campañas de nicho, en base a la candidatura de Alejandro Navarro

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    Tesis (Licenciado en Periodismo)Estamos a pocos días de vivir un nuevo proceso eleccionario en nuestro país, donde la principal característica de este ha sido la numerosa cantidad de personajes que se interesaron en participar; desde los candidatos fuertes que se repiten la hazaña, como lo son Eduardo Frei y Sebastián Piñera; hasta los díscolos de partidos, tanto Marco Enríquez-Ominami como Alejandro Navarro. Este último, quien dejara el Partido Socialista para emprender una candidatura apoyada por su nuevo partido político, será el principal foco de atención de la siguiente investigación, como ejemplo claro de una de las candidaturas más coherentes y concordantes en cuanto a ideologías, pero que por muchos factores de marketing y lineamientos, no surgió en el tiempo, llevándola a la baja meses antes de su culminación. Las candidaturas pequeñas, como he señalada anteriormente, han existido siempre en los períodos eleccionarios, por lo menos en los últimos 20 años, cuando ya hemos tenido cuatro presidentes distintos desde la recuperación de la democracia. ¿Por qué entonces en todo este tiempo no han podido surgir los candidatos pequeños, quienes siguen estando a las espaldas de los dos bloques que manejan la política chilena? Creo que es importante un estudio de esta índole, sobre todo cuando estamos viendo que las personas votan cada vez menos en masa, o sea, hacia un partido político determinado. Hoy, la masa votante está cada vez menos ligada a una ideología, llevando sus intereses a las características de los candidatos. Además, no es demás dejar en evidencia el gran aumento que ha tenido la deserción votante en los últimos años. Lo anterior, ha servido para que muchos políticos se den cuenta de este divorcio de la gente con los partidos y sus ideologías, para salir y empezar a emprender caminos en solitario y/o formando nuevos grupos, con nuevas propuestas. La siguiente investigación tratará de abordar todas las aristas de los erro res que cometen estos pequeños díscolos, con base en la candidatura de Alejandro Navarro Brain, para ayudar a responder algunas de las siguientes preguntas: ¿Existe una posibilidad de un surgimiento de los candidatos pequeños en las próximas elecciones? ¿Se podría seguir un lineamiento de marketing efectivo? ¿Sirven los métodos del pasado hoy en día

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

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    We 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

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We 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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