1,720,961 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

    Fiber-Reinforced Polymer Bridge Design in the Netherlands: Architectural challenges toward innovative, sustainable, and durable bridges

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    This paper reviews the use of fiber-reinforced polymers (FRPs) in architectural and structural bridge design in the Netherlands. The challenges and opportunities of this relatively new material, both for the architect and the engineer, are discussed. An inventory of recent structural solutions in FRP is included, followed by a discussion on architectural FRP applications derived from the architectural practice of the author and of other pioneers

    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

    Graded Structures: The design of a grid shell that uses gradual densification to enhance the performance of the overall structure

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    This graduation thesis aimed to find an answer to the following question: 'How to design a grid shell for the canopy of a stadium that uses performance based densification to enhance the performance of the structure?'. De Nieuwe Kuip in Rotterdam is used as a case study to put the findings into practice. In order to answer this question a literature study into the application of wood, steel and FRP has been performed. In addition to that, a literature research into types of graded structures has been performed. This research showed that Voronoi and Delaunay are the most promising for the generation of a graded grid structure. Voronoi was chosen as it most resembles the desired look of a bone structure. The densification of the graded structure is based on an imagemap that has been created by analysing several performances. This performance map is a greyscale image that follows the form of the overall shape of the canopy in which lighter colours represent large openings and darker colours represent smaller openings. Three methods to generate a graded Voronoi based on this imagemap were tested. The first method is based on Lloyd’s algorithm, the second method is based on Force Driven Circle Packing and the last method is a Smart Circle Packing based on mesh relaxation techniques and mathematical theorems. The last method proved to be most suitable for the task. Lastly, the created abstract grid of lines was translated to a real structure. It has been structurally optimized and analysed and technical details were created.Architecture, Urbanism and Building Science

    Architectural Hybridization

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    United Nations has projected that the current world population of 7.3 Billion People is expected to increase and reach 9.7 Billion by the year 2050, this draft increase in the population will lead to more consumption of resources as well as create immense land pressure. Charles Darwin has suggested that “It is not the strongest of the species that survives, nor the most intelligent. It is the one that is the most adaptable to change” Could this land pressure be controlled by re-thinking the existing building typologies ? Hybrid infrastructure could be another key innovation to control the expansion of cities, the idea is not to design more but rather to re-think the current process of infrastructure design to make it more efficient. Is it possible to hybridize ‘the elements of space making’ to create spatial hybrids. Elements that serve multiple purposes behaving in duality. Will the hybridization of these ‘spatial elements’ result in hybridization of building types eventually leading to an evolved hybrid building typology which could reduce land pressure as well as expand the existing vocabulary of the built environment. The research focuses on identifying this language of architecture and then hybridizing it to evolve the built environment by demonstrating a case of a hybrid of a bridge (infra structural element for movement) and a cultural center (infra structural element of habitation) and hence proposes an ‘Inhabitable Bridge’ in the east of Amsterdam, Netherlands. The hybridization of these elements could also lead to questioning ‘the way of looking at things” .For instance, a staircase is always perceived as a means to go from one level to another. This creates a construct in the designers head and limits its perception as a transition element. This new architectural language could forces users to experience and question there pre-conceived constructs by generating arguments within a persons mind eventually questioning ‘types’ and ‘typologies’ in design.Architecture, Urbanism and Building Sciences | Building Technology | Sustainable Desig

    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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