394 research outputs found
Per un approccio sociologico sulle vittime
No full textIl volume curato da Roberto Cipriani e Rosanna Memoli si propone di esaminare il contributo alle scienze sociali offerto da Costantino Cipolla, nella sua lunga e densa carriera accademica e di studioso. In particolare, il contributo a firma di Susanna Vezzadini e Arianna Marastoni esamina l'apporto allo studio della sociologia per le vittime offerto dallo studioso in più momenti della sua estesa produzione nel corso degli anni, per concludere con una intervista, rivolta allo stesso Cipolla, con riguardo alla sua sensibilità al tema e al suo impegno concreto realizzato nel corso di un inteso soggiorno in Brasile in anni recenti, dove lo stesso ha collaborato a percorsi di reinserimento sociale e sostegno rivolti a giovani e a donne che versano in condizioni di svantaggio materiale e sociale
A hybrid traffic control framework for urban network management
No full textIn order to address the very complex problem of urban traffic congestion the paper aims to investigate some "methodological" issues and "operational" benefits which can be derived from the implementation of a hybrid traffic control (TC) strategy. The main focus is on the integration of a within-day traffic flow modelling coupled with a traffic control method in particular: (1) a microscopic traffic flow representation was considered, (2) an enhanced on-line optimisation model able to design the traffic signal decision variables was adopted. Regarding the on-line traffic control a hybrid approach combining the interacting junctions optimisation (e.g. the decision variables are the green timings, the offsets and the stage sequences) and the link metering control was considered.The proposed framework was tested on a simulated case study using a calibrated network consisting of a highly congested sub-network in the city centre of Naples (Italy). The network layout is represented by one diversion node and two alternative paths connecting the same origin-destination pair; two scenarios were analysed: i) the single junction modelling; ii) the on-line scheduled synchronisation with the activation of link metering at upstream pedestrian crossings. The framework effectiveness is evaluated in terms of within-day dynamics with respect to the travel times performance index. © 2019 IEEE
Abitanti non-cittadini. Processi di accoglienza e pratiche spaziali quotidiane dei richiedenti asilo a Cagliari
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Media use and confidence in institutions : a comparative analysis of Hallin and Mancini's three models
No full textIn Comparing Media Systems (2004), Hallin and Mancini identify three models of
media systems: the Mediterranean, Corporatist and Atlantic models. They distinguish them
according to newspaper circulation, political parallelism, levels of professionalisation and role
of the state in the media system. This article extends their analysis by interpreting the media
systems in terms of confidence in institutions. How does the use of media affect institutional
support? Using the Eurobarometer dataset integrated with data on media consumption (newspaper
circulation and television viewership), this article explores the relationship between the
media and institutional trust. Overall, the results obtained from multivariate analysis reinforce
Hallin and Mancini’s theoretical approach. The research also reveals that media’s influence on
the level of citizens’ confidence in institutions has a positive effect – in contrast to the opinion
that media increase distrust in institutions
Media use, crisis and optimism
No full textThis article investigates the influence exerted by the use of traditional and new media on people’s perceptions of the economic
present and expectations of their own and the country’s economic future. The analysis takes place within an intensive economic crisis (the survey data used, published by Eurobarometer, were collected in 2013 on 28 European countries). In our analysis, among other independent variables, we focus on the role of media consumption in shaping the perceptions of both the present and future economic situation. The analysis proves that the intensive use of social media compared with the traditional media furnish a better picture of the
individual’s economic future. The relation is explained in terms of social capital
Postural Comfort Inside a Car: Development of an Innovative Model to Evaluate the Discomfort Level
No full textHow can car designers evaluate device’s position inside
a car today? Today only subjective tests or “reachability”
tests are made to assess if a generic user is able
to reach devices, but it’s no longer enough.
The aim of this study is to identify an instrument (index)
that is able to provide a numerical information about the
discomfort level connected with a posture that is kept
inside a car to reach a device, by this instrument it
should be possible not only judge a posture, but also
compare different solutions and get rapid and accurate
evaluations.
In the state of the art there are many indexes developed
to evaluate postural comfort (like RULA, REBA and
LUBA [3, 4, 5]) but none of them has been realized to
evaluate postures’ conditions that can be detected inside
a car, so their evaluations cannot be acceptable. There
are also many other studies (like Porter and Gyi, Krist,
Grandjean, Rebiffe, Dreyfuss 2D and 3D) which deal
with postural comfort inside car, but they have only
assess neutral angles and ranges of comfort, so their
evaluations are qualitative and discontinuous.
For these reasons it has been realized a new instrument
(implemented by our research group using MatlabTM) to
give the wanted numerical evaluation; it is based on an
human scale manikin that can reproduce each user and
each posture which can be introduced directly or
imported from a digital human modeling (DHM) software
(like JACKTM developed by U.G.S.), on discomfort
functions (one for each degree of freedom of the
manikin) and on a method (based on the distribution of
the weights of the human body on the different joints) to
aggregate them and return total discomfort values
Metodi visuali e ricerca geografica. Il caso di Sant’Elia a Cagliari
No full text“Fotografando Sant’Elia” è un intervento di ricerca-azione coordinato a partire dall’ottobre 2013 da un gruppo di geografi del Dipartimento di Scienze Economiche e Aziendali dell’Università degli Studi di Cagliari. Il progetto presentato si colloca all’interno di un più ampio percorso di ricerca e di riflessione sui temi della geografia urbana e della marginalità sociale, alla luce della tensione fra giustizia e ingiustizia spaziale in diversi contesti del Mediterraneo (Cagliari, Tunisi, Marsiglia e Fès)
Qualità della vita e struttura produttivo-occupazionale: l'interdipendenza tra Roma e la sua area metropolitana
No full textAbitanti non-cittadini. Processi di accoglienza e pratiche spaziali quotidiane dei richiedenti asilo a Cagliari
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