1,720,985 research outputs found
LA FILIERA AGROALIMENTARE DEL RISO Aspetti strategici e profili economico-finanziari delle aziende di trasformazione
No full textLa struttura del comparto risicolo e risiero italiano e le relative dinamiche competitive hanno subito nell’ultimo decennio interessanti mutamenti che, tuttavia, non sono stati oggetto di particolari attenzioni e indagini scientifiche. Il lavoro di Anna Chiara Invernizzi, Ricercatrice presso l’Università del Piemonte Orientale, si colloca proprio all’interno di questo mutevole e dinamico sistema di variabili competitive, offrendo alcuni contributi originali di carattere economico-aziendale, con specifico riferimento alle aziende di trasformazione del riso. La ricerca monografica si pone quindi il duplice obiettivo di individuare le principali strategie adottate dalle imprese risiere e, attraverso un’analisi dei risultati economico-finanziari, di identificare i comportamenti strategici di successo, in grado di garantire il raggiungimento di un vantaggio competitivo stabile e duraturo rispetto ai concorrenti. Gli elementi di novità e di originalità apportati dalla monografia sono ravvisabili:
(i) nell’applicazione del modello di filiera produttiva, basato su una logica di produzione-trasformazione-distribuzione, mai finora applicata al comparto risicolo e risiero italiano, caratterizzato nell’ultimo decennio da significativi cambiamenti sociali, culturali, normativi e tecnologici;
(ii) nell’applicazione del modello strategico di Porter, che consente di individuare i principali comportamenti strategici dell’arena competitiva, e
(iii) non meno importante, nella fase conclusiva nella quale viene condotta un’analisi dei legami esistenti tra scelte strategiche e risultati economico-finanziari delle aziende, tanto da poter individuare il modello competitivo più efficace ed in grado di massimizzare le performance aziendali.
Da un punto di vista operativo e, alla luce dell’attuale contesto competitivo, la presente monografia fornisce un valido ed originale contributo per una efficace analisi economico-finanziaria delle aziende risiere, combinata con le scelte strategiche adottate
Innovative applications of geothermal energy for direct uses: a pilot study case in Marche region (Italy)
No full text
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
A mathematical model to infer underground thermal characteristics for the design of borehole heat exchangers
No full textGeothermal exchangers are exploited as tools for the indirect analysis
of the thermal properties of the underground material. Two simple inverse problems based on different heat transfer models are proposed: the
first one is based on the cylindrical model of heat transfer and yields the
thermal parameters of the borehole, the second one is based on a forced
convective model and yields the soil thermal profile. We test our approach
on sets of data collected by direct numerical simulation and from a real
experiment
Interseismic locking vs. aseismic slip of carbonate–hosted normal faults: Insights from the northern Apennines, Italy
No full textCarbonate–bearing terrains represent important loci of earthquake nucleation and propagation in the shallow seismogenic crust; therefore, understanding fault mechanical behavior is fundamental in these rocks. Current models of fault slip mode generally assume: (1) slow/stable creep and fast/unstable slip to be separated in space and to occur in different fault patches, (2) aseismic sliding to be restricted to lithology–controlled weak domains, and (3) rate–weakening patches to be interseismically locked. We believe this view suffers from some physical and conceptual limitations when considering the available geological and geodetic data. We study three exhumed carbonate–hosted upper–crustal normal faults of the northern Apennines (Italy) by combining (micro)structural analysis with geodetic data and fault mechanics considerations. We bring evidence across a range of spatial scales, suggesting mutually overprinting seismic and aseismic slip along the same fault patches in phyllosilicate–poor limestone at different phases during the seismic cycle. We assess the hypothesis that carbonate–hosted normal faults at upper–crustal conditions may undergo interseismic creep dominantly by cataclastic flow and plastic deformation. We think our work provides new insights into the fault slip modes in carbonate terrains and may impact future studies on seismogenic potential and earthquake hazard assessment
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