1,721,036 research outputs found
La “percezione” della ruralità nelle scelte turistiche della componente urbana della società: un tentativo di stima e analisi
No full textThis paper shows the result of an analysis on the perception and the "demand" of rurality by a group of urban citizens. From a methodological point of view the study was structured into two parts: the first was oriented to detect, through a qualitative approach (focus group technique), the most relevant attributes of rurality in the perception of a potential urban residents. In the second step of the analysis these attributes have been used to built up a set of rural holiday alternatives to be test in a choice experiment with a group of urban consumers. A Multinomial Logit (MNL) model has been implemented to estimate the demand of rurality and the relations between attributes of rurality and consumer/tourist preferences. The obtained results allowed us to evaluate the role of urban citizen perceptions of rurality in a wider sense and to use them as strategic elements to promote a rural development actions based on the fruition of open-space, cultural heritage, landscape and agricultural activities
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
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
Red Mud Soil Contamination Near an Urban Settlement Analyzed by Airborne Hyperspectral Remote Sensing
No full textThe red mud dust risk involves the accumulative contamination of land and dwellings in the community with highly alkaline fine particulate containing heavy metals and other pollutants. This paper demonstrates that hyperspectral airborne remote sensing data can provide an effective, rapid and repeatable tool for mapping and monitoring the spread of red dust providing the location of the polluted areas to be checked. We perform field and laboratory analyses of red mud and soil samples collected in the study area and identify the optical characteristics of the samples to characterize the red mud spectral features. Next, we use hyperspectral airborne data covering an aluminium processing plant in Montenegro (EU). The joint use of MIVIS reflectance and emissivities data allowed us to individuate and map those sites on which the red dust is spread by the dominant winds, where a check for reclamation or a neutralization intervention is required. ©2009 IEEE
Factors Affecting Participation of Italian Farmers in Rural Development Policy
No full textIn this paper a (micro)econometric approach is developed by considering the farmer
likelihood to participate in different policy programs as linked to the objective of farmer to
maximize their welfare. In this way we model farmers participation in policy support scheme
by using a new institutional economics approach and conceptualizing the decision to entry as
a contractual choice between two rural development types of policy. Different discrete choice
modelling approaches are used to analyze the complementarity/ substitutability of different
policy programs such as environmental-related measures and farm investment supports
policy schemes and the main driving factors behind them.
We use an extensive cross-sectional database related to the Italian FADN 2006. Results
indicate that social capital and institutional factors should be taken much more into account
in order to understand farmers likelihood to entry in policy support schemes. Location and
farm(er) socio-economic features are also relevant factors. Moreover complementarity has
been found between different policy schemes
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