1,720,959 research outputs found
Orticoltura biologica e filiera corta: alcuni casi di studio
Full text linkL'obiettivo generale del lavoro è delineare le principali motivazioni del successo e le problematiche relative alla produzione di ortaggi biologici commercializzati con sistemi a filiera corta. I risultati a cui si perviene potranno essere di supporto ad altre aziende fornendo loro possibili soluzioni organizzative. I dati utilizzati derivano dall'attività di ricerca attuate con il progetto Ort.Bio che ha riguardato le regioni Emilia Romagna, Marche e Abruzzo
Energy analysis of organic horticultural farms in Italy
No full textThe aim of this research is to evaluate energy efficiency of organic horticultural farms in Italy at both surface (GJ/GJ ha-1 year -1) and product (kgMJ-1) level. The methods used is the Output/Input balance at farm level using energy equivalents of the three phases: production, transformation/conservation and marketing. The methodology have been applied to 8 case studies of the organic horticultural Italian sector. The results show that the energy input is low but also the energy efficiency is not high especially if compared to other study of the arable sector. However they show very positive aspects in the commercial phase
The Value of Traditional Rural Landscape and Nature Protected Areas in Tourism Demand: A Study on Agritourists’ Preferences
Full text linkThis study focuses on how traditional rural landscape and proximity to a Natura 2000 Site of Community Importance (SCI) might influence consumers’ choice of an agritourism farm for a weekend stay. Data were collected in Umbria region’s (Italy) agritourism farms in 2014 by interviewing 160 tourists. Results from a discrete choice experiment reveal that the most important feature affecting the interviewees’ propensity to pay a premium price to stay in an agritourism farm is the well-preserved traditional landscape (willingness to pay 32.32€/night for two people), followed by the availability of a swimming pool (willingness to pay 20.95€/ night for two people), the proximity to a historical village (willingness to pay 18.37€/night for two people) and, the location in a Natura 2000 SCI (willingness to pay 13.57€/night for two people). Furthermore, the results underline how the preservation of the traditional landscape and protection of the surrounding environment play a strategic role in developing agritourism and provide economic benefits to local communities
Impatto delle produzioni biologiche del Mediterraneo sulle produzioni biologiche nazionali
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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
Eurochocolate: an instrument of valorization for Perugia and its territory
No full textThe aim of the paper is to contribute to the study of events through analysis of a completely private event: Eurochocolate an international chocolate exhibition held annually in Perugia (Italy) since 1994. By combining stakeholders theory and Social Network Analysis, the authors examined the Eurochocolate stakeholder model based on the role of the event stakeholder, the degree of engagement of the participants and the relationships among stakeholders within and outside the event.
The combined use of stakeholders theory and the network approach proved essential to understanding the Eurochocolate organization, the reasons for its success, its economic sustainability, and the forms of collaboration between stakeholders. This knowledge should prove useful for the organization of non-profit events as well
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
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