1,722,462 research outputs found

    [[alternative]]A Stydy on the Influential Determinants of Vegetables & Fruit Eating Behavior Among Students of a Selected Junior High School in Taipei city

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    [[abstract]]A Study on the Influential Determinants of Vegetables & Fruit Eating Behaviors Among Students of a Selected Junior High School in Taipei city A Master Thesis YUH-FENG CHANG ABSTRACT The purpose of this study was to investigate the current vegetables & fruit- eating behaviors, and to examine the relationship between vegetables & fruit- eating behaviors and selected demographic characteristics, as well as knowledge, social psychology factors, and environment factors. The study consisted of 448 subjects who were selected by stratified clustered sampling method from Pei-Tou junior high school in Taipei city. The data were analyzed. The major findings of the study were as follows: 1. The knowledge of the subjects about nutrition was within medium level . 2. Within the social psychology factors, social support from family was higher than that from teachers. 3. The vegetables & fruit- eating behaviors of seven-grade and eight-grade subjects were significantly better than those of nine-grade subjects. 4. The vegetables & fruit- eating behaviors of feeling healthy subjects were significantly better than those of felling unhealthy subjects. 5. The vegetables & fruit- eating behaviors of most of subjects were in maintenance stage; the behaviors of subjects`s parents were in preparation stage. 6. The vegetables & fruit- eating behaviors were highly correlated with the nutrition knowledge, family support, perceived benefits, the encouragement of parents in eating, vegetables & fruit supplied at home, then negatively correlated with perceived barriers. 7. The variance of vegetables & fruit -eating behaviors could be explained by the independent variables which included the nutrition knowledge, family support , self –efficacy, parent’s behavior, perceived barriers and vegetables& fruit supplied at home, and the explanation power was 61.6﹪.

    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

    sj-pdf-1-smm-10.1177_09622802221108579 - Supplemental material for Analysis of survival data with cure fraction and variable selection: A pseudo-observations approach

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    Supplemental material, sj-pdf-1-smm-10.1177_09622802221108579 for Analysis of survival data with cure fraction and variable selection: A pseudo-observations approach by Chien-Lin Su, Sy Han Chiou, Feng-Chang Lin and Robert W Platt in Statistical Methods in Medical Research</p

    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
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