1,721,068 research outputs found

    Fortificazioni e paesaggio rurale: il tratturo ed il castello di Pescolanciano nel Molise

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    Il castello, la rocca ed il borgo fortificato sono parte integrante dell'organizzazione del territorio in epoca medievale e rappresentano un unicum con il paesaggio e con la materia di questo paesaggio. Pescolanciano, insieme ad altre strutture fortificate, doveva costituire una delle unità difensive nello scacchiere posto a controllo del territorio dai longobardi che, per garantirsi l'occupazione strategica del territorio fondarono stanziamenti militari quali le Fare ed i Peschi (Fara Sabina, Pescocostanzo, Pescasseroli). Il castello è ubicato lungo il tratturo Lucera - Castel Di Sangro che attraversa il centro abitato di Pescolanciano in direzione NW-SE. L'asse portante del sistema viario molisano costituito dai tratturi, le autostrade verdi dell'antichità, definiti anche le vie erbose o vie della lana, ha origine sannitica ed ancora oggi la trama stradale ricalca gli antichi tracciati tratturali. Il tratturo, sentiero erboso, si sviluppa sempre su un fondo naturale, originato dal paesaggio e dalla transumanza, dalle grandi migrazioni del bestiame. In Italia l'intrecciarsi di queste vie armentizie è stimato in circa 3.100 km, la misura della larghezza della sede del tracciato viario è di 111 metri corrispondenti a sessanta passi napoletani. Lungo i percorsi dei tratturi si incontravano campi coltivati, piccoli borghi dove si organizzavano le soste, dette stazioni di posta, chiese rurali, castelli e fortificazioni. Il più lungo dei tratturi italiani è il regio tratturo l'Aquila-Foggia detto anche tratturo del Re o Tratturo Magno che ha un'estensione di 244 km. L'intero sistema si originava nelle zone montane dell'Abruzzo e del Molise e si concludeva nel Tavoliere delle Puglie. Il Regio Tratturo parte dall'Aquila dal piazzale della Basilica di Santa Maria di Collemaggio, il tratturo Celano-Foggia arriva nell'area della Chiesa delle Croci, il tratturo Castel di Sangro-Lucera giunge nella città sede del castello federiciano, il tratturo Pescasseroli-Candela attraversa il Sannio, e già in epoca preromana era la più diretta ed agevole strada di comunicazione da sud a nord tra il Sannio meridionale (Puglia, Lucania, Campania) ed il Sannio centrale (Abruzzo e Molise). Dal 1° giugno 2006 è stata attivata la candidatura di La transumanza: i Regi Tratturi a Patrimonio dell'Umanità dell'UNESCO. Una miriade di torri e castelli corrono lungo i percorsi tratturali, auspichiamo che l'Istituto Italiano dei Castelli possa contribuire alla ricerca ed al censimento delle architetture fortificate esistenti lungo i Tratturi delle Regioni Abruzzo, Molise, Campania e Puglia e diventare promotore di una proposta di candidatura di queste architetture a Patrimonio dell'Umanità dell'UNESCO. Già in epoca normanna nella Costituzione del Regno si aggiungono norme volte a disciplinare l'uso dei pascoli per regolamentare i canoni d'affitto. Il castello di Pescolanciano, lungo il tratturo Castel di Sangro-Lucera, la città pugliese sede di uno dei più importanti castello-residenza di Federico II, è testimonianza di storia del territorio

    R. Nelli, Le phénomène cathare. V. d'Alessandro, Le pergamene degli Umiliati di Cremona. E. Werner, Nachrichten über spätmittelalterliche Ketzer aus tschechoslovakischen Archiven und Bibliotheken.

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    Le Goff Jacques. R. Nelli, Le phénomène cathare. V. d'Alessandro, Le pergamene degli Umiliati di Cremona. E. Werner, Nachrichten über spätmittelalterliche Ketzer aus tschechoslovakischen Archiven und Bibliotheken.. In: Annales. Economies, sociétés, civilisations. 21ᵉ année, N. 2, 1966. pp. 402-406

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

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    We 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

    Author Index

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    Unsteady Aerodynamics of a Savonius wind rotor: a new computational approach for the simulation of energy performance

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    When compared with of other wind turbine the Savonius wind rotor offers lower performance in terms of power coefficient, on the other hand it offers a number of advantages as it is extremely simple to built, it is self-starting and it has no need to be oriented in the wind direction. Although it is well suited to be integrated in urban environment as mini or micro wind turbine it is inappropriate when high power is requested. For this reason several studies have been carried-out in recent years in order to improve its aerodynamic performance. The aim of this research is to gain an insight into the complex flow field developing around a Savonius wind rotor and to evaluate its performance. A mathematical model of the interaction between the flow field and the rotor blades was developed and validated by comparing its results with data obtained at Environmental Wind Tunnel (EWT) laboratory of the “Polytechnic University of Marche”

    I tumori non epiteliali del colon retto: nostra esperienza

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    Non-epithelial malignancies of the colon and rectum are exceedingly rare. These neoplasms are usually asymptomatic and present with aspecific symptoms. Over a period of nearly 30 years (1963-1991) 1187 colorectal malignancies were treated surgically in our department. Twenty-one patients (about 2%) had non epithelial colorectal tumor: 8 lymphomas, 2 lipomas, 2 leiomyomas, 1 leiomyosarcoma, 4 neuroendocrine tumors and 4 "Tumor-like" lesions. Preoperative diagnosis could be made only in 5 patients. A retrospective analysis of our experience showed the importance of considering these lesions, though rare, among colorectal disease. Whenever an aspecific clinical picture with uncertain aetiology is showed and the patient scheduled for surgery, intraoperative histology is mandatory so as to guide any surgical strategy
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