1,720,960 research outputs found

    The Production and Identification of Mandarin Tones in Context

    Full text link
    Thesis (M.A.) - Indiana University, East Asian Languages & Cultures, 2015The purpose of the thesis is to study the acoustic variation of Mandarin tones produced in context by native Mandarin speakers (Study I) and how these acoustic variations of Mandarin tones influence L2 learners’ identification of Mandarin tones (Study II). Study I revealed that both F0 contour and F0 height of the two tone sequence of disyllabic non words from L1 Chinese were influenced by both syllable position and tonal context (conflicting/compatible context). Study II tested the identification of Mandarin tones by L1 English learners of Chinese in both monosyllable and two tone sequence of disyllabic non-words by using DMDX (a software for the experimental control and timing of stimulus display); in terms of how accuracy rates, identification sensitivity, error patterns, and reaction times are influenced by tonal context, syllable position, and learning experience. This study found that both syllable position and context affected the tone identification of L1 English learners of Chinese. Tones in monosyllables were identified with the highest accuracy and sensitivity, and shortest reaction time, followed by tones in the final syllable and tones in the initial syllable. Additionally, fewer errors were made in the compatible context than the conflicting context. With more learning experience, the effect of the compatible/conflicting context decreased for both tones in the initial syllable and final syllable tasks. The identification accuracy and sensitivity of Tone 1 (H) and Tone 4 (HL) were better than Tone 2 (LH) and Tone 3 (L) among the three tasks. The confusion between Tone 2 (LH) and Tone 3 (L) was most salient. This thesis helps fill the current knowledge gap concerning L2 learners’ identification difficulty of two tone sequence of Mandarin lexical tones, caused by the acoustic variation that existed in native Mandarin speakers’ production. This new information contributes to a deeper understanding of context effect on Mandarin tone identification of L2 learners. This can benefit teachers in predicting the points of difficulty in learning Mandarin tones and assist students to improve their tone identification in context

    Going Beyond Counting First Authors in Author Co-citation Analysis

    Full text link
    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

    Full text link
    “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

    Full text link
    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

    Full text link
    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

    No full text
    Nao informado

    koamabayili/VECTRON-author-checklist: VECTRON author checklist

    No full text
    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
    corecore