1,721,025 research outputs found
Food production for the city: different farmers strategies in the region of Pisa (Tuscany, Italy).
No full textFood production for the city: hybridization of farmers’ strategies between alternative and conventional food chains
No full textAlternative and local food supply chains (ALFSCs) have been indicated as drivers of territorial development through increasing the food security at local scale. The aim of the study is to characterized strategies that periurban farmers adopt to contribute to local food provision through ALFSCs. We surveyed a sample of 55 farmers in the urban region of Pisa, Tuscany (Italy). By combining qualitative and quantitative analysis of on-farm surveys, this study characterized three farmers’ strategies, depending on the percentage of production they allotted to local markets: few/passive, intermediate/opportunistic, entire/active. The main factors influencing each strategy were personal and professional bonds, diversification of the commercial network, the number and the diversification of products sold in ALFSCs. Even though farmers can allocate 100% of their production to ALFSCs, most farmers combine ALFSCs with conventional food chains, suggesting that hybridization has advantages for the sustainability of these farms. Farmers who adopt an opportunistic strategy appeared more dynamic and adaptable to local opportunities and constraints. This analysis will offer empirical evidence about the participation of farmers in ALFSCs and especially about the hybridization between conventional and alternative food chains, contributing to characterize of the local supply of produce, with benefits for community food security
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
Food, Integrating Urban and Agricultural Dynamics in Pisa, Italy
No full textThe book gives an overview of frameworks, methods, and case studies for the analysis of the relations between agriculture and the city, in Europe and the Mediterranean. Its origin is the DAUME Project (Sustainability of urban agriculture in the Mediterranean) and the 5th annual Conference of the Sustainable Food Planning group of AESOP, held in Montpellier (France) in 2013. The book provides a set of approaches of the sustainability of urban food systems from an actors’ perspective. The Part I presents systemic approaches of agricultural-urban interactions at the city-region scales in France, Egypt, Italy and Morocco. Local food issues, agriculture-urban relations, short food chains and urban livestock are taken as examples to develop systemic approaches showing both integrative and dualism processes linking agriculture and the city. The Part II deals with methods and tools for urban planning and local development, in order to design and assess sustainable food systems. At the city-region scale, chapters show how to estimate relevant boundaries of a sustainable foodshed, to design tools including local food supply In urban planning, and to evaluate contributions of local projects to global sustainability. The Part III inventories the recent changes in urban agriculture and the new forms of governance which are emerging in European cities (Athens, Berlin, Lisboa, Montpellier, Paris and Zurich). Referring to urban agriculture, chapters show how sustainable pathways can be fostered by a wide range of multiscale grassroots initiatives (farms, gardens, buildings, urban green areas ...) embedded in transitioning trends of sustainable development
Dispelling 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe 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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