1,720,954 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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    QUALITY INSPECTION OF FLANGE

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    Tema ovog diplomskog rada je kontrola kvalitete prirubnice. U ovom je radu opisan pojam kvalitete i kontrole kvalitete. Detaljno su pojašnjene značajke kontrole kvalitete, a naglasak je stavljen na metode koje se primjenjuju za provedbu kontrole kvalitete proizvoda. U odabranom je poduzeću definiran proizvod tubing prirubnica. U radu je opisan navedeni proizvod kroz njegovu primjenu, materijal izrade i tehnologiju izrade. Na primjeru odabranog proizvoda analiziran je plan kontrole kvalitete. Iskazana je važnost plana kontrole kvalitete. Rad sadrži detaljan opis svake aktivnosti plana. Pojedine aktivnosti plana sadrže opis samih metoda kontrole kvalitete te primjer podataka sadržanih u izvještajima kontrole kvalitete tubing prirubnice.This graduate thesis is focused on tubing head flange quality control. The definition of quality and quality control is provided in this thesis. The characteristics of quality control are explained in detail. Emphasis is placed on the methods used to verify product quality. The tubing head flange is defined in the selected company. The paper describes the mentioned product by its application, manufacturing material and manufacturing technology. The quality control plan was analyzed on the example of the selected product. The significance of the quality control plan was emphasized. The paper contains a detailed description of each activity. Some activities of the plan include a description of the quality control methods themselves and an example of the data included in the quality control reports of the tubing head flange

    Disel engines - methods for reducing the environmental impact

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    Razvojem cestovnog prometa povećava se i njegov utjecaj na okoliš, zdravlje ljudi te klimatske promjene. Dizel motor je motor s unutarnjim izgaranjem pri čijem radu dolazi do ispuštanja štetnih plinova i čestica u atmosferu. U ovom radu opisan je princip rada dizel motora, ispušni plinovi koji nastaju kao posljedica njegova rada, te njihov štetni utjecaj na ljude i okoliš. Velike emisije ispušnih plinova izazivaju štetne pojave kao što su: efekt staklenika, smog i kisele kiše. Opisane su zakonske regulative koje se provode u Republici Hrvatskoj te u Europskoj uniji, te načini mjerenja koncentracije emisija. U cilju smanjenja štetnog utjecaja ispušnih plinova dizel motora one postavljaju ograničenja kojih se proizvođači vozila moraju pridržavati. U radu su navedeni i opisani postupci smanjenja emisije ispušnih plinova , te novi trendovi primjene alternativnih goriva.The development of road transport also increases its impact on the environment, human health and climate change. Diesel engine is an internal combustion engine that emits harmful gases and particulates into the atmosphere. This paper describes the operating principle of Diesel engines, their exhaust gases, and their harmful effects on humans and the environment. Large exhaust emissions cause harmful effects such as: greenhouse effect, smog and acid rain. Regulations that are implemented in the Republic of Croatia and in the European Union and the methods of emission measurements are described in this paper. In order to reduce the harmful effects of Diesel engine exhaust, the regulations set limits on emissions. Manufacturers of all vehicles must respect those regulations. The paper describes the procedures for reducing exhaust emissions and new trends in the use of alternative fuels

    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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