4,968 research outputs found
Motivi letterari nei libri per l’infanzia di Paolo Di Paolo
No full textThe article, organised in the form of a discussion, aims to analyse the themes and motifs of Paolo Di Paolo’s works that are addressed to young audiences. The author has recently published a large number of volumes directed just at younger readers. When beholding the titles that constitute the author’s bibliography, the reader is struck by Di Paolo’s predisposition to transform literary classics: as much in Giacomo il signor bambino as in the edition of the Divina Commedia, the author’s goal is to try to reach his new readers. Therefore, Di Paolo proves to be a prolific author of the genre; in fact, in his bibliography, volumes of fairy tales with a classic slant, such as La mucca volante, are listed as well.L’articolo contiene un’analisi di temi e di motivi delle opere di Paolo Di Paolo dirette al pubblico più piccolo. L’autore negli ultimi anni ha pubblicato un cospicuo numero di volumi indirizzati, infatti, proprio ai lettori più giovani. Ciò che stupisce scorgendo i titoli che costituiscono la bibliografia dell’autore, è la predisposizione a trasformare i classici della letteratura: tanto in Giacomo il signor bambino quanto nell’edizione della Divina Commedia l’obiettivo è cercare di raggiungere i lettori più giovani. Di Paolo si dimostra, quindi, un autore prolifico del genere, tant’è che nell’elenco non mancano volumi fiabeschi dal taglio classico come La mucca volante. Analizzare le opere giovanili dello scrittore costituisce un fatto inedito
Correction to: Malignant epithelioid neoplasm of the ileum with ACTB-GLI1 fusion mimicking an adnexal mass (BMC Women's Health, (2022), 22, 1, (104), 10.1186/s12905-022-01679-0)
No full textFollowing publication of the original article (1), The author names were incorrectly published as Ambrosio Marco, Virgilio Agnese, Raffone Antonio, Arena Alessandro, Raimondo Diego, Alletto Andrea, Seracchioli Renato and Casadio Paolo. But this should have been Marco Ambrosio, Agnese Virgilio, Antonio Raffone, Alessandro Arena, Diego Raimondo, Andrea Alletto, Renato Seracchioli, and Paolo Casadio. The original article has been updated
Self Organisation in non recurrent complex system
No full textIn this paper, systems formed by networks of simple nonlinear cells are studied. Using lattice models, some of the fundamental features of complex systems such as self-organization and pattern formation are illustrated. In the first part of this work, a lattice of identical Chua's circuit is used to experimentally study its global spatiotemporal dynamics, according to the variation of some macroparameters, like the coupling coefficient or the neighboring dimension. The second part of the paper deals with the remarkable improvements regarding regularization and pattern formation, obtained in networks of nonlinear systems by introducing some spatial diversity, especially generated by deterministic, unpredictable dynamics. Simulation results show that synchronization and self-organization occur in networks with a few nonlocally connected cells, with irregular topology and small spatial diversity.
Read More: http://www.worldscientific.com/doi/abs/10.1142/S0218127400000785?prevSearch=[author:+ARENA,+PAOLO+OR+FORTUNA,+LUIGI]&searchHistoryKey
Corporate Governance and Codes of Conduct: how Italian companies are responding to the new Corporate Governance Code
No full textLa seconda epistola di san Paolo ai Tessalonicesi: le questioni aperte
No full textSi discutono le questioni relative all'autenticità della seconda epistola di san Paolo ai Tessalonices
Hypercomplex generative models: AI beyond Clifford algebra
No full textReal-world data is complex and often multidimensional, while artificial intelligence systems are usually designed over a set of real numbers, therefore trying to represent high-dimensional samples with mono-dimensional parameters. Therefore, data dimensions with a strong physical nature and complex relations are processed as sets of decorrelated components, losing crucial information and breaking the original structure of the data itself. As a consequence, several approaches in the literature try to overcome a bad data representation by enlarging model size up to billions of parameters, leading to networks with high-demanding computational resources and overfitting problems.
An elegant and powerful method for solving these limitations is involving higher-order algebras, such as the quaternion one, when defining model operations and data representation. Therefore, in this work, we first focus on proposing novel and efficient quaternion architectures for modeling 3D audio data, with innovative representations that exploit a 6DoF characterization thanks to a dual quaternion formulation, which we also prove to be translation invariant.
However, although quaternion neural networks are powerful methods for specific data types such as 3D audio or 3D human poses, they are limited to 4D inputs due to the four-dimensional nature of the quaternion number. Hence, we focus on generalizing this approach to a wider set of data, helping the spread of hypercomplex neural networks to various fields of application. Indeed, we present a framework to generalize quaternion neural networks to single-channel images, building multi-frequency samples leveraging the potentiality of quaternion wavelet transform to extract low- and high-frequency salient features from rich-of-detail images. This allows building a four-dimensional sample to be fed to quaternion neural networks, improving their performance. More interestingly, the enhanced sample can be also involved in conventional real-valued models, outperforming standard methods in a variety of tasks and datasets.
In this study, we also introduce a novel method to go beyond quaternion and Clifford algebras. The proposed family of parameterized hypercomplex neural networks (PHNNs) is based on an innovative hypercomplex layer that can be defined in any desired domain, regardless of whether the algebra rules are preset. This allows the processing of any D input, generalizing and preserving the advantages of sharing and reducing parameters. Our method grasps the convolution rules and the filter organization directly from data without requiring a rigidly predefined domain structure to follow. Such a malleability allows processing multidimensional inputs in their natural domain without annexing further dimensions, as done, instead, in quaternion neural networks for 3D inputs like color images.
As a result, the proposed family of PHNNs operates with free parameters as regards its analog in the real domain. We demonstrate the versatility of this approach to multiple domains of application by performing experiments on various image, audio, and medical datasets in which our method outperforms real-, complex-, and quaternion-valued counterparts.
Finally, we focus on involving the proposed approaches in the field of generative modeling, whose models are impressively increasing in size without carefully designing high-dimensional data representations. Indeed, latent relations among input dimensions, the RGB channels of an image, are essential to generate proper and good-quality samples. Simultaneously, in the last years, state-of-the-art generative models have received increasing interest and have known a boost in performance due also to the incredible growth of model size. As a side effect, this kind of model has become almost unreproducible and not accessible to research groups with lower budgets. In this scenario, hypercomplex algebras may help generative modeling in learning a suitable data representation that can preserve model performance even when the number of parameters is crucially reduced.
In order to validate our theoretical claims, we conduct an extensive experimental evaluation at different scales in several domains of application, such as image, audio, 3D human pose, and medical ones. We perform tests in a variety of tasks ranging from classification and segmentation, up to generation and image modality translation to strengthen our claims and to provide theoretical and practical guidelines that may be useful for the research community and for future developments of hypercomplex and generative models
Pier Paolo Pasolini e la società: il "sogno di una cosa" travolto dalla "nuova preistoria"
No full textL’articolo prende in esame – nel centenario della nascita – il “pensiero politico” di Pier Paolo Pasolini. Vengono pertanto scandagliati (soprattutto) i suoi scritti sulla società, ma frequenti sono le incursioni nella letteratura e soprattutto nel cinema di questo autore del tutto originale. Ne emerge lo spessore di concetti spesso usati dal poeta per analizzare e criticare il presente: Nuova Preistoria, nuovo capitalismo, consumismo, edonismo, il Potere, il Palazzo, il Processo, sviluppo e progresso, sacralità in primis. Si evidenzia inoltre come l’occhio e il giudizio di Pasolini siano stati principalmente guidati dalla passione e solo di rimando dalla ragione. Un ruolo non secondario nella sua percezione del reale ha inoltre assunto la sua omosessualità. Nella parte finale dello scritto si analizzano alcuni strumenti tecnici utilizzati dall’autore per svolgere la propria opera di comprensione del presente e della sua conseguente traduzione artistico-critica.The article examines - in the centenary of his birth - the "political thought" of Pier Paolo Pasolini.
Therefore, it scrutinizes (above all) his writings on society, but there are frequent incursions into the literature and especially into the cinema of this completely original author. What emerges is the depth of concepts often used by the poet to analyze and criticize the present: New Prehistory, new capitalism, consumerism, hedonism, Power, the Palace, the Process, development and progress, sacredness in primis. It also shows how Pasolini's eye and judgment were mainly guided by passion and only by reason. His homosexuality also played a significant role in his perception of reality. In the final part of the paper we analyze some technical tools used by the author to carry out his work of understanding the present and its consequent artistic-critical translation
Maintenance Management of Infrastructure Systems: Organizational Factors in Territorial Planning
No full textThe issue of the maintenance of the infrastructure systems (e.g., viaducts, roads,
bridges and highways), built some decades ago, is increasingly becoming a central argument.
Within this topic, the safety assessment represents a fundamental as well as basic analysis that
underpins a sustainable territorial management of the infrastructure systems. In fact, many
structures are often affected by functionality, aging or safety problems and need specific
interventions to avoid undesirable impacts in terms of social implications. In addition, the
reference stakeholders, in terms of institutions and public actors, play an important role in
relation to both the administrative and economic planning procedures. The present study has the
preliminary aim to illustrate some possible contributions and improvements to achieve a more
sustainable territorial planning, especially for the maintenance of the infrastructure systems. In
detail, the present preliminary investigation highlights the possible advantages deriving from the
use of the technology (i.e., remote sensing technique by means of satellite data - Differential
Interferometry Synthetic Aperture Radar “DInSAR”) within an analysis at territorial scale.
Indeed, the activity of monitoring all the overall infrastructure system can represent a useful
approach to have a territorial vision of the safety of the infrastructures and can lead to a more
sustainable planning. In fact, the involvement of all the reference stakeholders, in relation to this
specific territorial issue, can lead to a more organised administrative and economic process.
Some preliminary results, shown through thematic maps using the Geographic Information
System (GIS), are described for a case study in a sample area in Italy
O partida da ARENA na imprensa catarinense: cultura, política e poder no jornal de Santa Catarina (1974-1979).
No full textTCC (graduação) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas, História.Esta pesquisa busca analisar as relações estabelecidas entre o partido da Arena e o Jornal de Santa Catarina desde as eleições de 1974 até o fechamento do partido em 1979. A inesperada derrota da Arena para o MDB no pleito de 1974 passou a ser considerada uma ameaça ao projeto de distensão e a legitimidade do regime. No âmbito da política regional, o partido da Arena vinha de uma trajetória de disputas internas ao longo do governo Colombo Salles (1971-1975) e visou se reestruturar com o governo de Antônio Carlos Konder Reis (1975-1979). Temendo novas derrotas nas eleições de 1976 e 1978, tanto o governo quanto o partido da Arena se mobilizaram para combater a crescente oposição. É dentro deste contexto que iremos discutir como esta mobilização se deu também por meio do Jornal de Santa Catarina, o qual não somente informou e interpretou os fatos, mas interviu na vida social e política do Estado de Santa Catarina enquanto um agente legitimador das ações do partido da Arena e da ditadura civil/militar. Reservamos um capítulo específico para discutir a coluna escrita por Ingo Hering no jornal. Conhecido empresário e membro do partido da Arena, a partir do ano de 1976, Hering passou a escrever artigos para JSC apresentando as suas interpretações e posicionamentos referentes aos rumos da 'revolução de 1964', suas críticas ao marxismo e seus ataques ao MDB.This research aims to analyze the relations between the Arena party and the Journal of Santa Catarina since the elections in 1974 to the closing of the party in 1979. The unexpected defeat of the Arena for the MDB in the election of 1974 came to be considered a threat to the project of distention and the legitimacy of the regime. In the context of regional policy , the party of the Arena came from a trajectory of infighting over the government of Colombo Salles (1971-1975) and aimed to restructure in the government of Antonio Carlos Konder Reis ( 1975-1979 ). Fearing further losses in the elections of 1976 and 1978, both the government and the party of the Arena mobilized to combat the growing opposition. It is within this context that we discuss how this mobilization also happened through the Journal of Santa Catarina , which not only reported and interpreted the facts , but intervened in social and political life of the State of Santa Catarina as an agent of legitimizing the actions of the Arena party and the civilian/military dictatorship . We booked a specific chapter to discuss the column written by Ingo Hering in the newspaper . Prominent businessman and member of the Arena party , from the year 1976 , Hering began to write articles for JSC presenting their interpretations and positions regarding the direction of the '1964 revolution' , his criticism of marxism and its attacks on the MDB
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