1,720,970 research outputs found

    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

    Traditionally vs sonographically coached pushing in second stage of labor: a pilot randomized controlled trial

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    Objective: To investigate the usefulness of visual biofeedback using transperineal ultrasound to improve coached pushing during the active second stage of labor in nulliparous women. Methods: This was a randomized controlled trial of low-risk nulliparous women in the active second stage of labor. Patients were allocated to either coached pushing aided by visual demonstration on transperineal ultrasound of the progress of the fetal head (sonographic coaching) or traditional coaching. Patients in both groups were coached by an obstetrician for the first 20 min of the active second stage of labor and, subsequently, the labor was supervised by a midwife. Primary outcomes were duration of the active second stage and increase in the angle of progression at the end of the coaching process. Secondary outcomes included the incidence of operative delivery and complications of labor. Results: Forty women were recruited into the study. Those who received sonographic coaching had a shorter active phase of the second stage (30 min (interquartile range (IQR), 24–42 min) vs 45 min (IQR, 39–55 min); P = 0.01) and a greater increase in the angle of progression (13.5° (IQR, 9–20°) vs 5° (IQR, 3–9.5°); P = 0.01) in the first 20 min of the active second stage of labor than did those who had traditional coaching. No differences were found in the secondary outcomes between the two groups. Conclusion: Our preliminary data suggest that transperineal ultrasound may be a useful adjunct to coached pushing during the active second stage of labor. Further studies are required to confirm these findings and better define the benefits of this approach. Copyright © 2018 ISUOG. Published by John Wiley & Sons Ltd

    Italian fathers' experiences of labour pain

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    Background:Most women in Italy ask the father of their baby to be with them during labour. While the benefits on labour outcomes related to the presence of a support person, specifically the infant's father, have largely been demonstrated, few studies have focused on the meaning of this experience for fathers who chose to be with their partners during labour. Despite growing literature on this topic, no study has been conducted in Italy. Methods:The objective of the study is to explain the meaning of the labour pain experience from the father's point of view. The chosen research method was phenomenology. The study involved six fathers. Data collection was conducted through in-depth interviews, until data saturation was reached. Data analysis was conducted using Colaizzi's method. Strategies for increasing trustworthiness were used, such as member checking, peer examination, and code and recode procedures. Results:Five core themes emerged to describe fathers' experiences, including: 1) ‘labour pain is something you have to go through’; 2) a silent presence that gives courage; 3) ‘I hope I can stay until the end of the birth’; 4) ‘I didn't know that would happen’; and 5) fathers' need to ‘recharge their batteries'. Conclusion:Fathers, or partners, are an important resource for women during their labour. However, it is important to prepare men for this role and to provide anticipatory guidance on what to expect during labour. It is important to recognise that the partner may need support or guidance from the midwife during labour. Dissemination of these findings to fathers will also help them to know that their feelings and experiences are common and shared by others

    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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