1,355,862 research outputs found
Il cippo confinario del Monte Ramaceto. Una testimonianza unica nel Tigullio d'età Romana. Video documentario a cura di F. Benente e A. Bertero
No full textVideo documentario (durata 10 minuti) con interviste e con documentazione del ritrovamento del cippo confinario romano del Monte Ramaceto (GE). Il video è inserito nell'allestimento permanente del Museo Archeologico e della Città di Sestri Levante ed è disponibile on line, nella pagina del muse
La riforma agraria : appendice a una discussione parlamentare / Antonio Salandra Roma : G. Bertero, 1900
No full textLa riforma agraria : appendice a una discussione parlamentare / Antonio Salandra
Roma : G. Bertero, 1900
28 p. ; 25 cm
Note Pubbl. in Nuova antologia, fasc. 675, 1 febbraio 1900
Tomography with a finite set of projections: singular value decomposition and resolution
No full textRegularized deconvolution of multiple images of the same object
No full textIn recent publications the problem of deconvolving multiple images of the same object was considered, and the fact that this problem can be well posed in the sense of distributions was stressed. Here we point out that the problem is still ill posed in spaces of square-integrable functions, and we discuss in what cases the use of multiple images rather than a single image can be advantageous
How do people understand inequality in Chile? A study through attitude network analysis
No full textThis article constitutes the first application of the attitude network approach to peoples’ views
on inequality. We adopt a network model in which nodes represent survey variables and edges
their conditional associations. This allows us to conceptualize perceptions, beliefs, and judgments
about inequality as a network of connected evaluative reactions. We analyze data from the 2019
ISSP Social Inequality Module for Chile, one of the most unequal countries in the world. Relying on
a network approach, we systematically analyze the wide-ranging indicators measuring subjective
inequality. Results show that conceptions regarding inequality, redistribution, taxation, and wages
form a moderately connected unified belief system with a small-world structure. In addition, we
stratify the sample by education, income, and social class, obtaining six attitude networks. We com-
pare the structures of these networks, investigating differences in community membership, node
centrality, and network connectivity, evidencing that people in lower social positions have a more
multidimensional understanding of inequality. Our work contributes to social justice research by
proposing an innovative conceptualization of these attitudes and providing evidence of their struc-
tural variation across different socioeconomic groups
A midsummer's night dream: political communication during the Italian 2022 electoral campaign
No full textBy adopting a political communication perspective, this article describes the
Italian electoral campaign of 2022. First, we reconstruct the coalition formation phase
and discuss the issues at the center of the electoral campaign. Second, we describe the
communicative macro-frames at the heart of the political strategies of Italian politi-
cal actors and how these macro-frames are used to campaign on more specific issues.
Third, we delve into the hybrid communication strategies of Italian politicians. To do
so, we integrate the analysis of legacy media, showing their enduring centrality, and
that of social media. We conclude that the 2022 election was marked by many novel-
ties, such as the unusual national summer campaign, the massive use of Instagram, and
the introduction of TikTok in the parties’ communication strategies. At the same time,
elements of continuity were present, such as leaders’ reliance on traditional media and
the high political instability forcing the Italian political system to intense and hurried
electoral campaigns
Carlo Giuseppe Bertero - recto
No full textBotanico: Bertero, Carlo Giuseppe (1789-1831).
Medico ricercatore e conoscitore della flora piemontese oltre che botanico viaggiatore nelle Antille, nel Cile, a Tahiti ecc..
Titolo manoscritto ed estremi cronologici riportati sul recto, dove compare anche la nota: Da inc. in rame prest da S. Belli, 1899.
Montata su cartoncino 105 x 65 mm.
1 fotografia : aristotipo ; 87 x 56 mm.
Vai alla scheda bibliografica: https://galileodiscovery.unipd.it/discovery/fulldisplay?context=L&vid=39UPD_INST:VU1&search_scope=MyInst_and_CI&tab=Everything&docid=alma99001498989020604
Analysis of an approximate model for Poisson data reconstruction and a related discrepancy principle
No full textIn this paper, we investigate an approximate model for Poisson data reconstruction inspired by a discrepancy principle for the selection of the regularization parameter, recently proposed by Bardsley and Goldes. The model can be obtained by approximating the generalized Kullback-Leibler (KL) divergence in terms of a weighted least-squares function, with weights depending on the object to be reconstructed. We show that it is possible to develop a complete theory, based on this approximation, including results of existence and uniqueness of regularized solutions and simple gradient-based reconstruction algorithms for their computation. Moreover, in this context, the criterion of Bardsley and Goldes is a natural one and it is possible to prove that, in several important cases, it provides a unique value of the regularization parameter. We describe a few numerical tests for comparing the approximate approach with the exact one based on the generalized KL divergence. In the case of a moderate or large number of photons, they provide essentially the same results and therefore the approximate model can be considered as a possible alternative to the exact one
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