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    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

    Use of the lean model at Pro Sky

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    O modelo lean startup representa uma forma recente de desenvolver novos produtos e serviço. No entanto, existe pouca informação sobre a implementação em empresas. O autor desta tese aborda esta lacuna na literatura, fornecendo um exemplo prático de uma organização adaptando o modelo lean startup. O estudo de caso único envolve o intermediário de serviços aéreos Pro Sky que tenta desenvolver um novo serviço de concierge em aeroporto. Um entendimento profundo é obtido por meio de entrevistas, participant-observation e a simulação do novo serviço. Em comparação com desenvolvimentos passados de novos serviços na Pro Sky, o modelo lean startup ajuda a acelerar o processo de desenvolvimento, reduzir o desperdício de recursos e reduzir os efeitos negativos dos vieses cognitivos. O modelo reforça o objetivo da Pro Sky se desenvolver numa empresa voltada para o cliente. Obstáculos incluem oferecer aos clientes um produto inacabado e o medo resultante da perda de reputação.The lean startup model represents a recent way of developing new products and services; nevertheless there is little information about the implementation at companies. The author of this thesis addresses this gap in literature by providing a practical example of an organization adapting the lean startup model. The singlecase study involves the air solutions provider Pro Sky that tries to develop a new airport concierge service. In-depth insights are gained by interviews, participantobservation and simulation of the new service. In comparison to past new service developments at Pro Sky, the lean model helps to speed up the development process, reduces waste and lowers the negative effects of cognitive biases. The model enforces Pro Sky’s aim of developing into a customer-driven company. Obstacles lie within offering the clients an unfinished product and the resulting fear of the loss of reputation

    Use of the lean model at pro sky single case study on how lean startup model can be used to implement a new service at pro shy

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    The lean startup model represents a recent way of developing new products and services; nevertheless there is little information about the implementation at companies. The author of this thesis addresses this gap in literature by providing a practical example of an organization adapting the lean startup model. The single-case study involves the air solutions provider Pro Sky that tries to develop a new airport concierge service. In-depth insights are gained by interviews, participant-observation and simulation of the new service. In comparison to past new service developments at Pro Sky, the lean model helps to speed up the development process, reduces waste and lowers the negative effects of cognitive biases. The model enforces Pro Sky’s aim of developing into a customer-driven company. Obstacles lie within offering the clients an unfinished product and the resulting fear of the loss of reputation

    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

    Voice over IP 2.0: an analysis of limits and potential of IP2IP telecommunication

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    Internet Telephony (VoIP) is changing the telecommunication industry. Oftentimes free, VoIP is becoming more and more popular amongst users. Large software companies have entered the market and heavily invest into it. In 2011, for instance, Microsoft bought Skype for 8.5bn USD. This trend increasingly impacts the incumbent telecommunication operators. They see their main source of revenue – classic telephony – under siege and disappear. The thesis at hand develops a most-likely scenario in order to determine how VoIP is evolving further and it predicts, based on a ten-year forecast, the impact it will have on the players in the telecommunication industry.The paper presents a model combining Rogers’ diffusion and Christensen’s innovation research. The model has the goal of explaining the past evolution of VoIP and to isolate the factors that determine the further diffusion of the innovation. Interviews with industry experts serve to assess how the identified factors are evolving.Two propositions are offered. First, VoIP operators are becoming more important in international, corporate, and mobile telephony. End-to-end VoIP (IP2IP) will exhibit strong growth rates and increasingly cannibalize the telephony revenues of the classic operators. Second, fix-net telephony in SMEs and at home will continue to be dominated by the incumbents. Yet, as prices for telephony fall towards zero also they will implement IP2IP in order to save costs. By 2022, up to 90% of the calls will be IP2IP. The author recommends the incumbents and VoIP operators to proactively face the change, to rethink their business strategies, and to even be open for cooperation

    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
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