1,721,036 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

    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

    Relationships Between Build Location and PSV Shipbuilding Times

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    Industrien for spesialisert skipsbygging leter kontinuerlig etter måter å forbedre konkurranseevnen på i form av kostnadseffektivitet og reduserte produksjons- og leveringstider. Det er likevel behov for mer forskning for å studere effekten av forskjellige lokasjonsspesifikke faktorer som påvirker skipsbyggingstider mellom land. Denne studien har som mål å undersøke om faktorer knyttet til byggelokasjonen til et skip kan påvirke produksjons- og leveringstider i spesialisert skipsbygging. Masteroppgaven undersøker offentlig tilgjengelige data om byggetider for plattformforsyningsfartøy (PSV) og undersøker den eksisterende litteraturen om produksjons- og leveringstid av spesialiserte skip. Resultatene gir bevis for at byggelokasjonen til et skip kan forklare mye av variansen i produksjons- og leveringstid mellom forskjellige regioner og land. For å videre undersøke hvilke aspekter innenfor byggelokasjon som kan påvirke PSV-byggetider, blir det samlet inn data om PSVer og deres skipsverftets nærhet til klynge, offshoring av skrogproduksjon, offshoring av design, og vertikal integrasjon av designkapabiliteter. Flere lineære regresjonsanalyser blir brukt for å analysere de innhentede dataene, bestående av 1322 PSVer produsert på verft i 6 forskjellige land. Denne studien vurderer hvorfor nærhet til klynge, offshoring av skrog eller design ikke har noen signifikant effekt på produksjons- og leveringstider for spesialiserte skip. Forskningen gir også bevis og forklaring på hvorfor vertikal integrasjon av designavdeling kan redusere produksjons- og leveringstiden for PSVer. Denne studien bidrar til litteraturen om faktorer som påvirker tidsprestasjon i spesialisert skipsbygging, samt fremhever hvordan byggelokasjonen til et skip kan påvirke produksjons- og leveringstid.The shipbuilding industry of specialized ships constantly looks for ways to improve competitiveness in terms of cost-efficiency and reduced production and delivery times. Still, more research is needed to study the effect of several location-specific factors affecting shipbuilding times between countries. This study aims to investigate whether factors related to the build location of a ship can influence production and delivery times in specialized shipbuilding. The author examines publicly available data on the shipbuilding times of Platform Supply Vessels (PSV) and investigates the existing literature on the subject. The results provide evidence that the build location of a ship can explain a lot of the variance in production and delivery time between different regions and countries. To further investigate what aspects within the build location that can affect PSV shipbuilding times, data is collected on PSVs and their shipyards’ proximity to cluster, offshoring of hull production, offshoring of design, and vertical integration of design capabilities. Multiple Linear Regression is used to analyze the obtained data, consisting of 1322 PSVs produced at shipyards located in 6 different countries. This study assess why proximity to cluster, hull offshoring, or design offshoring do not have any significant effect on production and delivery times of specialized ships. The research also offers evidence and explanation as to why vertical integration of design capabilities can reduce the production and delivery time of PSVs. This study contributes to the literature on factors affecting the time performance in specialized shipbuilding, as well as highlighting how the build location of a ship can affect its production and delivery time
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