1,721,200 research outputs found
Modelling the economic, social and environmental components of natural resources for sustainable management
Full text linkEditorial Materia
An elliptic boundary value problem with fractional nonlinearity
Full text linkWe investigate the existence and uniqueness of solutions to second-order elliptic boundary value problems containing a power nonlinearity applied to a fractional Laplacian. We detect the critical power separating the existence from the nonexistence regimes. For the existence results, we make use of a particular class of weighted Sobolev spaces to compensate for boundary singularities which are naturally built in the problem
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Fortran Codes for Cozzi, M., Public Debt and Welfare in a Quantitative Schumpeterian Growth Model with Incomplete Markets, Journal of Macroeconomics, 2023.
No full textThe folders include the Fortran90 Codes to solve the steady-states and transitions for the models in the paper "Public Debt and Welfare in a Quantitative Schumpeterian Growth Model with Incomplete Markets," forthcoming in the Journal of Macroeconomics.The folder "EGT_RandD" includes the files to solve the steady-states. The folder "EGT_RandD_TR" includes the files to solve the transitions. The folders with the "Income_MChain_RandD" in their names solve the alternative versions of the model with the "superstar" income shocks
A new framework for supply chain strategies: conceptual model and empirical test
No full textSupply chain management (SCM) is explored from an operational perspective,following a threefold approach. The article introduces a set of management techniques and
supporting tools that can be used to analyse and describe SCM strategies. It proposes a new normative tool and uses it to examine a large set of relevant SCM case studies pertaining to seven industries: apparel, automobile, grocery, white goods, pharmaceuticals, computers and book publishing. The article develops a new conceptual framework for SCM strategies and test it based on empirical evidence. The new schemes proposed here provide a normative tool to define and represent supply chain strategies, a contingency model to support managers in designing supply chain strategies, and some hints for further research
Batteri pigmentati del Taleggio
No full textSome pigmented bacteria which are present on the surfaces of Taleggio cheese have been isolated and identified. They are Arthrobacter spp., Corynebacterium spp., Microbacterium, Brevibacterium linens, and Staphylococcus spp. The media of their isolation have been described
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