177,226 research outputs found
A primer on statistically validated networks
No full textIn this contribution we discuss some approaches of network analysis providing information about single links or single nodes with respect to a null hypothesis taking into account the heterogeneity of the system empirically observed. With this approach, a selection of nodes and links is feasible when the null hypothesis is statistically rejected. We focus our discussion on approaches using i) the so-called disparity filter and ii) statistically validated network in bipartite networks. For both methods we discuss the importance of using multiple hypothesis test correction. Specific applications of statistically validated networks are discussed. We also discuss how statistically validated networks can be used to i) pre-process large sets of data and ii) detect cores of communities that are forming the most close-knit and stable subsets of clusters of nodes present in a complex system
Preface
No full textThe Enrico Fermi Schools are a highly prestigious series of summer schools of the Italian Physical Society with a tradition of more than 60 years and with many Nobel laureates as lecturers (https://www.sif.it/attivita/scuola_fermi/). The International Schools devote special care in planning the program and produces proceedings of the school that have become classics.
Recently an increasing number of interdisciplinary topics have been selected and our school fits into this trend. Our school will consider complex systems of social and economic origin by teaching and discussing concepts and topics of computational social science and econophysics. These are fields, where physicists, computer scientists, sociologists and economists join efforts to understand the laws governing the complex system of human interactions
Art. 18 - Il contratto e la sua stipulazione
No full textIl lavoro commenta il contenuto dell'art. 18 del d.lgs. n. 36/2023 sulla stipula dei contratti pubblic
il volto della morte: le maschere funerarie della sepoltura dei preti morti di Gangi
No full textriassunto — Le mummie moderne e il signifcato recondito della doppia sepoltura nelle culture mediterranee moderne sono da tempo ampiamente dibattuti. In questo lavoro si discute di una particolare “collezione” di corpi di ecclesiastici, mummifcati ed esposti in un comune montano madonita della Sicilia, Gangi. I corpi, principalmente risalenti al XIX secolo, mummifcati per colatura come nella tradizione del tempo e vestiti degli abiti talari, sono esposti nel piano sottostante della Chiesa Madre, in quella che nella tradizione è detta la “fossa dei parrini” (fossa dei preti). Le mummie, a differenza di altri siti siciliani e mediterranei, sono altresì corredate di sonetto commemorativo e di maschera mortuaria realizzata in cera fne. L’interesse precipuo del nostro studio si è rivolto proprio a questa particolare manifestazione complessa della doppia sepoltura, che risiede nella rappresentazione del volto. Il lavoro esprime una disamina del concetto di maschera mortuaria nell’antichità e porta alla conclusione che il luogo, per le sue valenze scenografche e per la sofsticatezza della ritualizzazione dovesse essere stato ideato per l’ostentazione e il consolidamento dell’immagine della Chiesa e del suo potere all’interno della piccola società rurale
The utility of 3D medical imaging techniques for obtaining a reliable differential diagnosis of metastatic cancer in an Iron Age skull
No full textIn this report we present a case of neoplastic disease affecting an Iron Age skull that provides some of the earliest evidence of metastatic cancer (MC) in Western Europe
Art. 46 - Concorsi di progettazione
No full textIl lavoro commenta la disposizione normativa contenuta all'art. 46 del codice dei contratti pubblici del d.lgs. n. 36/2023 sui concorsi di progettazion
Fatal cranial injury in an individual from Messina (Sicily) during the times of the Roman Empire
No full textForensic and archaeological examinations of human skeletons can provide us with evidence of violence.
In this paper, we present the patterns of two cranial lesions found on an adult male (T173) buried in a
grave in the necropolis ‘Isolato 96’, Messina, Sicily, dating back to the Roman Empire (1st century BC - 1st
century AD). The skull reveals two perimortem traumatic lesions, one produced by a sharp object on the
right parietal bone and the other one on the left parietal bone, presumably the result of a fall. The
interpretation of fracture patterns found in this cranium are an illustration of how forensic approaches
can be applied with great benefit to archaeological specimens.
2013 Elsevier Ltd and Faculty of Forensic and Legal Medicine. All rights reserved
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe 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
Using network community detection to investigate psychological and social features of individuals condemned for mafia crimes
No full textObjective: Only few studies have investigated social and personality characteristics of members of Italian organized criminal groups: Mafia, Camorra, ‘Ndrangheta, and Sacra Corona Unita. This study aimed to explore the most relevant social and clinical features of Mafia criminals and their psychopathic traits. Method: The Psychopathy Check List-Revised (PCL-R) and a socio-demographic questionnaire were administered to 30 condemned for Mafia crimes and imprisoned in the “Pagliarelli” district prison of Palermo (Italy). The results were investigated applying the methods of Network Theory. Results: The study identified two communities, which were statistically different in terms of history of juvenile delinquency, levels of education, and antisocial and deviant behaviours score at PCL-R. Conclusions: The onset of antisocial behaviour and educational achievement might be relevant variables in understanding mafia offences, as well as antisocial behaviours in general. Moreover, methodologies of Network Theory may be used to characterize real-world complex systems of sociological and clinical dates
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