1,720,997 research outputs found
An integrated socio-cyber-physical system framework to assess responsible digitalisation in agriculture: A first application with Living Labs in Europe
Full text linkMetta, M., Ciliberti, S., Obi, C., Bartolini, F., Klerkx, L., & Brunori, G. (2022). An integrated socio-cyber-physical system framework to assess responsible digitalisation in agriculture: A first application with Living Labs in Europe. Agricultural Systems, 203, 103533
A Quantitative Clustering Approach to Ultrametricity in Spin Glasses
Full text linkOn line come http://arXiv.org/abs/cond-mat/030427
The income effect of CAP subsidies: implications of distributional leakages for transfer efficiency in Italy
No full textEnhancing farm income level is one of the main purpose of the Common Agricultural Policy (CAP). The ability to reach such a goal can be measured in terms of transfer efficiency, that is affected by the presence of distributive leakages through the agro-food system. The present work aims to shed light on the income distributional effects of the main forms of CAP subsidies in Italy over the period 2008–2014: single payment scheme, coupled payment and second pillar aids. To this aim, an Arellano– Bond linear dynamic panel-data estimation (based on a database provided by the Italian FADN) is performed. Results show that all the main types of CAP support have a significant income effect, even though some relevant differences occur between decoupled and coupled components of direct payments received by Italian farmers as a consequence of distributional leakages
Digitalisation strategies in the agri-food system: The case of PDO Parmigiano Reggiano
No full textContext: Agri-food systems in rural areas are increasingly dependent on collective and participatory actions to preserve traditional production and local agro-ecosystems. The deployment of digital technologies is expected to play a role in this context, provided that an integrated use of these tools is pursued. Objective: The paper analyses the characteristics of an integrated strategy of digitalisation led by a collective organisation, integrating the perspective of the Socio-Cyber-Physical System (SCPS) in the agri-food system. The aim is to reveal how the digitalisation process shapes and impacts on the governance of collective actions in a scenario of ecological transition. Methods: This case study examines the production system and Consortium for the protection of PDO Parmigiano Reggiano cheese, using the Institutional Analysis and Development framework. Evidence from official documents, direct observations, semi-structured interviews, and focus group are used to identify action situations and their connections. Results and conclusions: The paper allows us to identify a network of applications of digital tools, adopted in different business areas of a complex organisation such as the Parmigiano Reggiano Consortium and its production system. This network of integrated business functions can be seen as the hallmark of the digitalisation strategy elaborated by this Consortium at the intersection with the surrounding social and physical domains, strengthening the embeddedness in the PR production system. However, some obstacles and drawbacks of this strategy also emerged, such as a marginal integration with the ecological transition. Significance: This research makes a valuable contribution to the process of identifying the fundamental elements of the digital network that represents the digitalisation strategy of the Parmigiano Reggiano production system. It is important to address any existing limitations and emerging conflicts in order to guarantee effective quality monitoring and traceability of the cheese without any prejudice for the natural resources of the PR production area. This must be done in a way that does not compromise the distinctive production processes that are deeply rooted in local traditions and require specialised, labour-intensive techniques
Local rigidity in sandpile models
No full textWe address the problem of the role of the concept of local rigidity in the family of sandpile systems. We define rigidity as the ratio between the critical energy and the amplitude of the external perturbation and we show, in the framework of the dynamically driven renormalization group, that any finite value of the rigidity in a generalized sandpile model renormalizes to an infinite value at the fixed point, i.e., on a large scale. The fixed-point value of the rigidity allows then for a nonambiguous distinction between sandpilelike systems and diffusive systems. Numerical simulations support our analytical results. © 2002 The American Physical Society
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
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