1,721,003 research outputs found
Accumulare, manipolare e comporre: Arcimboldo e gli artisti-collezionisti dal 1970 a oggi
Full text linkSono pochi gli studi che hanno trattato, se non in maniera occasionale, il principio creativo che soggiace alla realizzazione delle opere di Arcimboldo, denominato dalla critica "arcimboldismo". Un campo d'indagine ancor meno battuto è stato quello inerente l'applicazione di questa maniera di creare da parte di alcuni artisti contemporanei. Per tale motivo si è ritenuto necessario prendere come oggetto d'indagine l'arcimboldismo inteso come un medium plastico di carattere mitopoietico, attraverso il quale sarebbe stata raggiunta una conoscenza e dato un ordinatamente al reale. Questa maniera di creare sarebbe stata portata avanti empiricamente mediante la composizione e la scomposizione degli elementi coinvolti, una visione frammentaria condotta con la finalità di potere indagare totalmente il dato concreto. La ricerca ha voluto mettere in risalto la continuità dell’arcimboldismo della prima metà dell’età moderna al mondo contemporaneo
Carta dei valori faunistici
No full textcarta tematica che descrive le emergenze legate alle specie di fauna presenti nell'area del Parco naturale delle Prealpi Giuli
Modelling crop rotations from field to regional scale: a rural planning oriented approach
No full textCrop simulation models are powerful tools both in research and in rural planning. Applications depend
on the availability of input data and on their suitability to model requirements. In agroecosystem
simulations oriented to rural planning (e.g. leaching evaluation at regional scale), multi-year crop
rotations are needed. Crop rotations can be retrieved by Common Agricultural Policy (CAP) databases,
where single crops and surface areas are yearly recorded at the cadastral level. However, simulations at
the regional scale require an abatement of the very large number of rotations reconstructed from the
crops series over the same field in a given time window in order to alleviate time-consuming simulation
runs and to better explain model outputs. Moreover, the lack of information over a part of the total
agricultural area must be filled using the available data in order to run complete geographical
simulations. An approach aimed at upscaling crop rotations from the field to the regional scale and
reducing the number of crop rotations while maintaining the representativeness of local agricultural
systems and the linkage to the geographic features is proposed. The approach takes also into account
that cropping systems simulations will be carried out over long time periods (decades), therefore
requiring repeated rotations cycles
Stima delle lisciviazioni azotate dai terreni agricoli su scala regionale: integrazione di diverse fonti in unica struttura dati georiferita a supporto dei modelli di simulazione
No full textI metodi per la definizione delle zone vulnerabili da nitrati (ZVN) sono una questione aperta sia in ambito scientifico che
legislativo. I modelli di simulazione offrono una soluzione al problema, ostacolata però dalla possibilità di disporre in
modo efficace dei dati necessari alla loro applicazione. Le diverse informazioni (clima, carichi zootecnici, suoli,
ordinamenti colturali e relative pratiche agronomiche), infatti, provengono da numerose fonti, hanno un elevato grado di
complessità strutturale e non sono omogenei.
Una struttura dati in grado di integrare le diverse fonti consente la produzione semi-automatica delle combinazioni di fattori
che descrivono la realtà di ogni area omogenea del territorio. Vengono così generate le condizioni di simulazione per il
modello (es. CropSyst). La scala di simulazione non è scelta a priori, ma deriva dalla sovrapposizione degli strati
informativi che concorrono alla determinazione delle ZVN. Inoltre la struttura dati consente controlli di qualità,
elaborazione degli output, creazione di scenari e costituisce una base ontologica per la definizione dell’agroecositema,
utilizzabile in altri contesti
Estimation of nitrogen leaching from agricultural land at a regional scale: Integration of several sources into one data structure to support georeferenced simulation models
No full textGoing 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
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