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    UMNH:Mamm:15028

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    UMNH:Mamm:15028 Voucher specimen study ski

    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

    La relación del uso de títeres en clase y los problemas de oralidad en estudiantes de la Institución Educativa N° 15028 Augusto Gutiérrez Mendoza

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    La presente investigación estudió el problema ¿Qué relación existe entre el uso de títeres en clase y los problemas de oralidad de los alumnos de la Institución Educativa N° 15028 Augusto Gutiérrez Mendoza? La población de estudio estuvo conformada por 148 alumnos. Se administraron dos cuestionarios, utilizando un diseño correlacional, a 107 alumnos, mediante un muestreo probabilístico con afijación proporcional. Los resultados indican que existe relación significativa entre el uso de títeres en clase y los problemas de pronunciación (r = 0.871; p < 0.01), además existe relación significativa entre el uso de títeres en clase y los problemas de entonación (r = 0.879; p < 0.01), también existe relación significativa entre el uso de títeres en clase y los problemas de fluidez (r = 0.875; p < 0.01). En conclusión, existe relación significativa entre el uso de títeres en clase y los problemas de oralidad de los alumnos de la Institución Educativa N° 15028 Augusto Gutiérrez Mendoza, porque los datos de la estadística descriptiva muestran porcentajes altos y la estadística inferencial, mediante el coeficiente r de Pearson (r = 0.875) que tiene un valor de significancia de (p < 0.01), por lo tanto, se rechaza la hipótesis nula y se acepta la hipótesis alternativa.This research studied the problem: What is the relationship between the use of puppets in class and the oral skills problems of students at Educational Institution No. 15028 Augusto Gutiérrez Mendoza? The study population consisted of 148 students. Two questionnaires were administered, using a correlational design, to 107 students, through a probability sampling with proportional affixation. The results indicate that there is a significant relationship between the use of puppets in class and pronunciation problems (r = 0.871; p < 0.01), in addition there is a significant relationship between the use of puppets in class and intonation problems (r = 0.879; p < 0.01), there is also a significant relationship between the use of puppets in class and fluency problems (r = 0.875; p < 0.01). In conclusion, there is a significant relationship between the use of puppets in class and the oral skills problems of the students of Educational Institution No. 15028 Augusto Gutiérrez Mendoza, because the data from the descriptive statistics show high percentages and the inferential statistics, through Pearson's r coefficient (r = 0.875) which has a significance value of (p < 0.01), therefore, the null hypothesis is rejected and the alternative hypothesis is accepted.Universidad Nacional de Educación Enrique Guzmán y ValleTesi
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