1,721,037 research outputs found
Cipriani (Roberto) Rinaldi (Giovanni) Sobrero (Paola) Il simbolo conteso. Simbolismo politico e religioso nelle culture di base meridionali
No full textPrandi Carlo. Cipriani (Roberto) Rinaldi (Giovanni) Sobrero (Paola) Il simbolo conteso. Simbolismo politico e religioso nelle culture di base meridionali. In: Archives de sciences sociales des religions, n°54/2, 1982. pp. 196-197
Olimpiade Dionisi e la scienza penalistica del suo tempo
No full textDa studi recenti emerge una rinnovata attenzione per la penalistica pontificia degli ultimi decenni di vita dello Stato, che invita a una nuova valutazione della dottrina giuridica romana dell’età a cavallo tra la Restaurazione e l’Unità.
Tra le figure meritevoli di particolare attenzione, ma che non sono state oggetto di una specifica disamina, il presente elaborato si sofferma su Olimpiade Dionisi, avvocato principe del foro e professore di Diritto criminale all’Università della Sapienza, la cui personalità trae nuova luce dall’analisi del materiale inedito conservato presso importanti archivi.
L’articolo ricostruisce il pensiero e il contributo del Dionisi muovendo dallo studio dei suoi scritti, tra i quali assume fondamentale rilevanza il testo delle Lectiones universitarie, rimasto sino ad ora sconosciuto. La ricerca prosegue attraverso l’esame dei due progetti scaturiti dai lavori della Commissione di giureconsulti per la riforma del Regolamento penale e di procedura criminale, cui egli viene chiamato a far parte nel 1846. I due progetti rappresentano il punto più alto raggiunto dalle iniziative codificatorie pontificie e sono espressione della sensibilità scientifica e culturale dei loro compilatori.
Dionisi risulta dunque essere una personalità significativa e degna di approfondimento, che ha ricoperto un ruolo di primo piano nella scienza giuridica dello Stato della Chiesa al tramonto.ecent studies highlighted a renewed attention in pontifical criminal law from the last decades of the State’s existence, inviting to a new evaluation of its juridical doctrine at the age between Restauration and Italy’s unification.
Amongst the characters worthy of attention, but which have not been object of specific analysis, the present work focuses on Olimpiade Dionisi, highest profile attorney and professor in Criminal law at Sapienza University, whose figure receives new light from the analysis of unpublished material stored at important archives.
The paper reconstructs Dionisi’s thought and contribution from the study of his works, amongst which the hitherto unknown work of the Lectiones, his course textbook, deserves fundamental relevance. The research continues with the exam of the two projects originated from the work of the Commission for the reformation of the criminal and criminal procedure codes, which he was asked to join in 1846. The two projects represent the pinnacle of pontifical codification and are expression of the scientific and cultural sensibility of their redactors.
Dionisi therefore represents a relevant character deserving of deeper study, who covered a prominent role in the judicial science of the Papal State at its twilight
New heuristics for the Max-Cut problem
No full textMax-Cut (or, equivalently, Quadratic Unconstrained Binary Optimization (QUBO))
is one of the most relevant and studied combinatorial optimization problems. In the
last decade, it got even more popularity after some innovative hardware, implementing heuristics that are based on quantum annealing, have been commercialized. These sys-
tems (QPU) are not general-purpose computers; as a matter of fact, they are able only to provide good solutions to QUBO instances defined on Chimera graphs, but in amazingly short computing times. The availability of such systems propelled a great deal of research focused on transforming real-world optimization problems (machine learning among the
many) to QUBO instances. The impact of the new technology became so strong that a QPU gained the cover page of TIME magazine in 2014.
A speedup factor of thousands or even a million times of QPU over some classical heuristics has been reported in the scientific literature. In contrast, Selby proposes a heuristic that provides more accurate solutions than QPU in not much longer times. The
heuristic is based on the so-called sub-graph sampling method. Essentially, the algorithm identifies a series of induced sub-graphs where Max-Cut is efficiently solvable due to their peculiar structure. Then the final solution is built from the solutions found on these sub-graphs. A recent study has shown that the Selby heuristic outperforms QPU both for solution quality and computing times. However, recently announced new versions of QPU can handle instances on graphs more complex than Chimera, whose tree-width is substantially higher, making Selby’s algorithm no longer applicable.
This fact motivates this paper where, sticking to the same sub-graph sampling method,
some structures of the induced sub-graphs, other than the tree-width, are exploited.
In particular, two structures are considered: outer-planarity and the sign of the edge-weights, possibly after applying operations like subset contraction and switching that are
commonly used in Max-Cut algorithms. The second structure makes it possible to apply the algorithm to any graph and not only to graphs with small tree-width like is the case for the algorithm of Selby.
We tested the algorithm on toroidal grid graphs, on the Chimera graphs used in the mentioned study
and on other instances in the literature obtaining encouraging results. For instance, we
are able to find the optimal solution for 94.42% of the 1355 Chimera instances in less than 1.72 seconds when using 560 simultaneous threads. Also, running the algorithm with 560 different seeds per instance, we observed that the optimum is attained at least once every
20 repetitions
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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