1,721,344 research outputs found

    Spatial Mismatch and Mobility Involvements: a Common Approach for the Urban Sprawl Parma-Bologna

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    An economic growth which is wide-area scattered is one of the most important indicator of social well-being and is such a strong factor that can induce long-range demographic dynamics. Incoming migration fluxes are scattered across the national territory following patterns that appear mostly relational rather than economically driven. The resulting effect can be the well-known problem of Spatial Mismatch, SM. The institutionalist approaches permits to use different scaled units of analysis, with different levels of integration but coexistent under the very same historical-social pattern-determining context. This work will try to explain the relationship between SM and the more general Transaction Costs. With this hypothesis it will be possible to read from a (neo)institutionalist perspective the whole, empirical and theoretical, body of Spatial Mismatch. Trough the introduction of the temporal perspective the present work propose a theoretical framework that shows that the increasing degree of spatial mismatch discussed in the case study has appeared only when the redistributive action so important for the initial development, and operated mainly trough the increasing of social capital stock, has declined. Therefore upgrade policies of public goods are considered constantly needed in order to promote growth itself

    A finite element-discrete element approach for the analysis of the venice trans-lagoon railway bridge

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    In this paper, the feasibility of the utilization of a combined finite element/discrete element (FE-DE) approach to investigate the behavior of masonry arch bridges is proposed. Attention is paid to the assessment of the load carrying capacity by means of a suitable coupled FE-DE two-dimensional approach. This paper outlines the fields and limits of applicability of the FE-DE method to the study of masonry arch bridges. The main contribution is to evaluate the applicability of FE-DE, in particular its reliability to describe the nonlinear behavior of masonry arch bridges under increasing static loads, to catch kinematic failure mechanisms and collapse load multipliers, as well as to evaluate the role played by the backfill. A discussion on a possible approach to FE-DE modelling of the Venice trans-Lagoon masonry arch bridge is proposed. With such a purpose, a series of parametric analyses has been conducted in order to evaluate the influence of the different parameters involved on the behavior of the bridges. Pushover analyses have been performed to investigate the nonlinear behavior up to the collapse and up to a clear formation of a failure mechanism in the model

    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

    Ecoprofit environmental certification as a public good: SWOT analysis of a relationship network

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    The present work aims at carrying out an analysis of the strengths and weaknesses of the Ecoprofit certification through an institutionalist framework capable of incorporating the role of enterprises, institutions and relationship networks. Through the analysis of case studies on cooperation and on the food farming industry it is possible to subdivide the possible markets into 4 stages of maturity, according to the different degree of interaction among the agents, and to investigate the present and future role of environmental certifications seen as social capital increase vectors, thanks to their capability of recognizing and producing a culture of quality and, therefore, of sustainable development
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