1,721,034 research outputs found

    Reversible building design. Material Circularity and life cycle extension in the construction industry

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    In the last decades, the effects of the climate crisis have become increasingly evident, as demonstrated by the growth in the number and intensity of extreme weather events recorded worldwide. The construction sector is one of the economic and production sectors that contributes most to worse this phenomenon, due to its environmental impact in terms of resource consumption, CO2 emissions, and waste generated by building construction and demolition processes. Globally, the construction sector produces approximately 40% of global CO2 emissions, and in only in Europe, construction and demolition waste accounts for about a third of total waste. It is therefore the responsibility of designers to explore new alternative approaches to the traditional way of designing, constructing, and managing buildings, in order to counteract trends and reduce the environmental impact of the construction sector. This study attempts to critically examine a new possible approach to building design and life cycle management through the principles of reversible design. Framed within the strategies of Design for Environment (DfE), reversible design aims to create artifacts designed to be easily assembled and disassembled, allowing for modifications of the construction over time, if the original requirements change, or allowing dismantling and material recovery at the end of the life cycle. Enabling adaptability over time, facilitating conditions for material reuse, and extending the building and its components’ life cycle are implementable strategies to achieve the decarbonization goals of the construction sector by 2050, as outlined in the most recent international climate agreements. For the methodological control of reversible design principles, the research intends to present their possible application to a case study: the design of a functional module for post-natural disaster housing emergency

    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

    Strumenti di valutazione per la lettura del grado di reversibilità del patrimonio costruito

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    The regeneration of the existing building stock is a priority in achieving the decarbonization goals set by international agreements on the climate crisis. To date, the gap between the required and the actual performances of the construction sector in meeting these goals necessitates not only the energy ef-ficiency of buildings, which addresses the operational emissions of a construction, but also interventions on the embodied carbon emissions. In this direction, new circular design approaches such as reversible design, which aims to extend the life cycle of buildings and reduce demolition and construction waste, are being developed. While these principles are easier to apply to the design of new buildings, their integration into the reuse of existing buildings is less explored in the literature. This paper proposes a reinterpretation of the aspects of reversibility applied to reuse, presenting a tool for pre-assessing scena-rios of repurposing existing buildings, which provides a synthetic index of the level of adaptability and functional flexibility of a building

    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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