1,722,868 research outputs found
L'agro pubblico in Lucania, le prefetture e il Liber coloniarum
No full textIl contributo ricostruisce la storia dell'agro pubblico in Lucania con particolare riguardo alla sua formazione e alle forme di sfruttamento. Tra esse, l'assegnazione delle terre, in virtù della lex Sempronia agraria, che comportò lo stanziamento di cittadini Romani, per le esigenze giurisdizionali dei quali furono inviati prefetti del pretore urbano fino alla riorganizzazione municipale dopo la guerra sociale: momento a partire dal quale gli assegnatari e le loro terre furono attribuiti ai neomunicipi. Le aree centuriate conservarono la denominazione 'prefettura' oramai presente nella toponomastica rurale, cosicché in questo modo sarebbero state registrate al momento della ricognizione agrimensoria condotta nell'ambito della legge Iulia agraria del 59 a.C. I dati raccolti in quellìoccasione sarebbero alla base delle informazioni contenute nel Liber coloniarum.This contribution reconstructs the history of the public land in Lucania, from its formation to the forms of exploitation. Among them, the assignation of lands in Gracchan times settled Roman citizens, for which praefecti of the praetor urbanus administered the justice until the municipal reorganization after the social war, when these citizens and their lands were attributed to the new municipia. The centuriated areas preserved the denomination praefecturae by then become word of rural toponomy, so that in this way they would have been recorded during the survey conducted within the Caesar's law of 59 a.C. The information collected in that occasion would form the news contained in the Liber coloniarum
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
Il fiume come sistema,una proposta metodologica per il riassetto del sistema fluviale torinese
No full textVariations 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
Securitization and systemic risk: An empirical investigation on Italian banks over the financial crisis
No full textThis research examines the effects of securitization on the bank's risk exposure both in terms of individual
expected shortfall and marginal expected shortfall as a measure of systemic risk. The relationship between
securitization activity and tail risks is especially relevant in light of the consequences for financial stability,
both for the individual securitizing banks and for the market as a whole, as the financial crisis 2007–2008
reveals. By using a sample of Italian listed banks over the period 2000–2009, we find that securitizing banks
have, on average, higher expected losses in case of extreme events. This adds newevidence on the main findings
in the literature that focused on the evidence that risk transfer through securitization is relatively insignificant
compared to the risk retained by the originating bank. We showthat this risk retention is in terms of an increase
of tail risk.Wealso find that securitization increases the probability of banks to become “systemically” riskier, but
we find no difference when comparing the pre-crisis with the post-crisis period. This suggests that the systemic
exposures of Italian banks are still as high as before the crisis with severe implications for financial stability
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