1,720,973 research outputs found
Il ruolo emergente dei civic food networks nell'innovazione attorno al cibo.
Full text linkNell’ultima decade nuovi atteggiamenti verso la produzione e il consumo di cibo hanno portato alla ricerca di nuove forme organizzative, fondate su una cooperazione sempre più stretta tra produttori e consumatori, che in misura crescente fa riferimento ad obiettivi condivisi di sostenibilità sociale e ambientale. Queste nuove interazioni si sono mostrate in grado di dar vita a significativi processi di cambiamento nelle pratiche alimentari. All’interno di questi processi, in tempi più recenti si sono distinte le iniziative promosse da cittadini-consumatori che, riappropriandosi di un ruolo autonomo e attivo, coinvolgono i produttori in una nuova dimensione di cittadinanza alimentare. Questa nuova consapevolezza rappresenta spesso il primo passo per lo sviluppo di più complessi network. Nella letteratura più recente questi nuovi network alimentari sono riuniti sotto la denominazione di “Civic Food Networks”. Questi network ed i processi di innovazione da essi innescati sono significativi anche perché espressione di potenziali cambiamenti nei meccanismi di governance del sistema agro-alimentare.
Questo articolo si propone di contribuire alla riflessione sul potenziale innovativo di questi CFN presentando i risultati di un caso di studio. In esso vengono analizzati il processo di sviluppo di uno di questi network e la sua capacità di promuovere e guidare processi di innovazione (la transizione verso modelli più sostenibili), focalizzando l'attenzione sui meccanismi di apprendimento sociale
Farmers’ participation in operational groups to foster innovation in the agricultural sector: An Italian case study
Full text linkRecently, the interpretation of the innovation process has changed significantly. Its linear model has evolved to a dynamic and ongoing participatory approach where cooperation, oriented to generate co‐ownership, is the essence to co‐produce knowledge among multiple actors. Farmers’ direct participation in the process is widely accepted since they contribute with first‐hand information, perceptions, field experiences, and feedback that are essential for the design and implementation of a project. The European Union encourages their participation through the European Rural Development Policy that promotes competitiveness and sustainability in the agriculture and forestry sectors, building bridges among heterogeneous stakeholders that complement each other to find an innovative solution to a given problem. Thus far, despite participation importance, few details have been provided about producer’s contributions within the process. Consequently, this paper attempts to explore the modus operandi of an Italian Operational Group to get insights about the farmers’ participation and identify the factors that could influence and foster the interactive innovation process. The results, based on a participatory observation, key informants’ interviews, and theory reflection, revealed that farmers are active players in the design and implementation phases. Yet, their participation is not constant throughout the entire process. Empower them to find solutions with different players is a complex challenge as it requires motivation, commitment, trust, and an open communication among different actors
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
A new probe for measuring local liquid holdup in column equipped with structured packings
No full textIn the present work a new probe based on the measurement of the electrical capacitance has been developed and tested. The probe is designed to measure local liquid hold-up in columns equipped with structured packings and it can therefore be used to evaluate the presence of the liquid hold-up gradient inside each packing element in the column. Evaluation of the liquid hold-up gradient is helpful to identify locations inside the packing element where flooding begins and to suggest packing design modifications. The main advantages of this new probe are that it is non-intrusive, it allows fast and on-line measurements, and it can be used for laboratory scale columns as well as for industrial applications
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
Innovation for sustainable agriculture: perspectives and potentials of learning processes in two case studies in Italy
Full text linkDispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
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