1,721,025 research outputs found
Un inedito poemetto tardo-trecentesco: il «Fiore dei Conversi»
Full text linkRiassunto: Il contributo si propone di fornire una panoramica generale e un breve saggio di edizione di un inedito e anonimo poemetto in sonetti databile al tardo Trecento e tràdito soltanto dal codice Chigiano M.IV.99, conservato alla Biblioteca Apostolica Vaticana. A seguito di un’introduzione (§ 1) che intende delineare le particolarità dell’opera ed il contesto storico-culturale in cui essa può essere situata, sono collocati alcuni paragrafi che si occupano rispettivamente della descrizione codicologica del manoscritto unico (§ 2), dell’esposizione delle vicende del racconto (§ 3) e di alcune osservazioni linguistiche finalizzate alla formulazione di un’ipotesi di collocazione geografica del poemetto (§ 4). Viene infine presentata la tavola del codice (§ 5). Correda l’articolo un’appendice contenente un saggio di edizione di quattro sonetti, mediante i quali si vuole mostrare al lettore la tipologia di distribuzione senza soluzione di continuità della materia narrativa sulle tessere delle diverse poesie, elemento che garantisce una coesa tenuta poematica all’intera serie di sonetti
Geoheritage and global changes: insights on the open issues of geoconservation
No full textOver the last 30 years, the field of studies related to geological heritage and geodiversity has gained some interest within the scientific community, in parallel with a renewed awareness among scientists, stakeholders and the public of the importance of preserving geological assets. Numerous works have been devoted to the development of appropriate procedures for geo-conservation (e.g. Crofts, 2020), and geoconservation is envisaged, albeit in different forms, in two frameworks of UNESCO sites - World Heritage Sites and Global Geoparks.
The generic geoconservation process appears to be fairly well established in the literature and essentially consists of: i) identification and assessment of sites of geological interest to be conserved (the geosites); ii) definition of management objectives; iii) assessment of threats and degradation risk; iv) management zoning and implementation of conservation measures; v) monitoring; vi) review of the conservation strategy.
However, although the general procedure is well defined, there are still several methodological gaps in relation to individual steps. The most important of these is the assessment of degradation risk, for which many proposals have been made in the literature, but there is no consensus on which is the most appropriate and effective. Furthermore, many of the proposed methodologies do not take into account the specificities of different types of geosites.
This thesis therefore aims to address some of the open issues of the geoconservation process, with the proposal of specific methodologies that can be used for the definition of geoheritage management strategies. In particular, this work had the following objectives:
(i) To propose and test a quantitative methodology for assessing the risk of degradation of geosites. The proposed methodology is based on the concepts of fragility and vulnerability as defined by \textcite{garcia-ortiz_concepts_2014}. The quantification of fragility, natural vulnerability, anthropogenic vulnerability and protection measures is proposed through a set of indicators to which numerical values are assigned. The numerical indicators have been chosen so that the methodology is replicable for any type of geosite inventory, while taking into account the specificities of individual geosite categories (e.g. geomorphosites).
(ii) To propose and test a semi-quantitative methodology for rapid assessment of climate change sensitivity of geosites.
(iii) To propose and test a methodology for the proper management zoning of sites of geomorphological interest (geomorphosites), with the definition of buffer zones around the actual geosite area, taking into account any active processes interacting with it.
The three proposed methods were tested on two inventories of geosites belonging to two different study areas: Liguria (Italy) and the Hérens Valley (Valais, Switzerland). With regard to Liguria, the geosite inventory was taken from previous works (Ferrando et al., 2021); it contains 120 geosites of different types and primary interest. For the Hérens Valley, on the other hand, a new inventory, including 44 geosites, had to be made as a preliminary step. The geosites included in this inventory were then evaluated according to the procedure proposed by Reynard et al. (2016), before applying the three methodologies mentioned above.
Based on the results obtained, specific management actions were then proposed to reduce the risk of degradation of the most fragile and vulnerable geosites. Finally, some open questions regarding the conservation of active geomorphosites were discussed.
The results obtained in this thesis thus provide further insights into the procedures and management measures to be taken for effective geoconservation. Furthermore, they show how, especially in the case of geomorphosites, geoconservation actions can be more effective with a systemic approach
Fiore dei conversi. Testo inedito di fine sec. XIV. Edizione critica e commento
No full textIl "Fiore dei Conversi" è un poemetto anonimo in sonetti ritornellati (372 poesie), databile alla fine del sec. XIV e tràdito da un solo manoscritto (B.A.V., Chig. M.IV.99). Vi viene narrato il racconto di un viaggio allegorico tra le stelle - e con meta il paradiso - che il protagonista, il cui nome resta sconosciuto, compie, mentre è ancora in vita, accompagnato da una guida saggia e fedele soventemente apostrofata con l'appellativo di "duca". La tesi consiste in una proposta di edizione critica e commentata del poemetto: la prima parte si sostanzia di alcuni capitoli introduttivi in cui il testo viene presentato sotto il profilo letterario, linguistico e codicologico (mediante un'accurata descrizione del testimone unico). Tra questi capitoli uno in particolare è dedicato all'influenza che la "Commedia" dantesca ha avuto nei confronti di questo testo. Viene inoltre prospettata una dettagliata analisi linguistica, sulla base della quale si avanza anche un'ipotesi di collocazione geografica dell'opera, che pare provenire dall'Italia mediana, e in particolare dall'Umbria; la seconda sezione della tesi presenta invece i testi in edizione critica: ciascun sonetto è preceduto da un'introduzione che ne riassume i contenuti ed è seguito da un commento che ne mette in luce gli aspetti più curiosi e innovativi nel panorama letterario e culturale di riferimento.
Per le sue particolarità, il poemetto può a tutti gli effetti essere considerato uno dei risultati più interessanti del fenomeno dell'epigonismo e della libera rielaborazione del capolavoro dantesco della "Commedia"."Fiore dei Conversi" is an anonymous poem in refrained sonnets (372 poems) dating back to the end of the 14th century and handed down by a single manuscript (B.A.V., Chig. M.IV.99). It tells an allegorical journey among the stars and to paradise, that the protagonist takes while he is still alive, accompanied by a wise and faithful guide, often called "duca". The thesis is intended as the critical edition of the poem: the first part deals with a general introduction of the text from a literary and linguistic point of view, and contains the codicological description of the manuscript. In this section a chapter is devoted to the influence of Dante's "Commedia" on the imagination and on the linguistic usus scribendi and register of the anonymous poet. Furthermore it is advanced the hypothesis of a geographical location of the poem on the basis of some relevant linguistic elements, whose presence suggests its provenance from central Italy, and particularly from Umbria. The second section of the work contains the critical edition of the sonnets: each poem is preceded by an introduction which summarizes its contents, and is followed by a comment that highlights the most curious literary aspects. The poem can be considered in all respects one of the most interesting and innovative example of the fortune and reworking of Dante's masterpiece, the "Commedia"
Nuovi cieli per l’altro mondo: il viaggio tra le stelle in un inedito poemetto del tardo Trecento
No full textMicro-geometry characterisation of sloped surfaces: an improved methodology for roughness parameters estimation
No full textIl Sussidio Canevari nel contesto culturale e istituzionale genovese
No full textIl contributo inserisce il caso studio del Sussidio Canevari nel contesto delle istituzioni assistenziali genovesi di età moderna
Wavelet analysis for surface characterisation: An experimental assessment
No full textA new approach based on wavelets for the mathematical treatment of surface roughness is presented. Wavelet theory, firstly developed for the analysis, compression and subband filtering in signal processing, can be used as a tool for the treatment of profiles and surfaces. In this paper the effectiveness of this new application is discussed, considering either synthetic and real surfaces, with the aim of evidencing the peculiarities of this methodology. Moreover, an assessment of the descriptive capability of this approach to identify the main features of the profile is given
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
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