187 research outputs found
Urban safety: A re-reading of the sense of unsafety through individual and ecological dimensions
No full textThe issue of urban safety is a research topic that has attracted the attention of scholars for several years, particularly in relation to the effects of individual and environmental variables that influence the fear of crime. Some recent studies have redefined the study of fear of crime, widening it to a more general dimension represented by the perception of safety. However, no specific tool has been proposed to measure this construct. In this paper, a new assessment scale of the perception of unsafety has been used to examine the impact of individual factors (gender, age, etc.) and ecological factors (ethnic composition of the neighbourhood, residential stability, etc.) on the dimensions of the scale (general sense of unsafety, perception of physical and social disorder, collective efficacy perception and preoccupation with crime). Results showed a strong convergence with the existing evidence with regard to the ambiguous role of some individual variables, such as gender and age, and for the influence of the characteristics of the neighbourhood. © The Author(s) 2018
Description of a low‐cost picture archiving and communication system based on network‐attached storage
No full textHigh costs for installing, maintaining, and updating a standard picture archiving and communication system (PACS) can be prohibitive for small/medium‐sized veterinary facilities. The aims of this prospective, exploratory study were to describe the design, implementation, and author experiences for 1 year's use of a low‐cost PACS based on network‐attached storage. The system described here was easily installed and resiliently stored redundant copies of data. It excellently balanced data recovery, system speed, security, and available memory for storage. A virtual private network also allowed off‐site data review. This system can also be used for future off‐site backup of data in the cloud
The DAQ system for CORAM (COsmic RAy Mission) experiment
No full textCORAM (COsmic RAy Mission) is an experiment carried out by INFN and the University of Salento for studying and measuring several properties of the cosmic ray flux. The CORAM detector can be used both for experimental and outreach goals and it is designed also for aereospace applications. The final Data Acquisition system (DAQ) has been implemented in order to create a compact, redundant and user friendly device that can be used for several purposes. In this work we present this DAQ system and the electronics used
OXIDE BASED MATERIALS. NEW SOURCES, NOVEL PHASES, NEW APPLICATIONS
No full textThe International Workshop "New sources, novel phases, new applications", the third of the series on "Oxide based materials", was held September 13 to 16, 2004 at Societ̀ del Casino Sociale in Como, Italy. The workshop brought together experimental and theoretical scientists of different origins and expertise to exchange information on common scientific research fields, especially on all those materials whose features and properties depend on the interaction between surface and ionic and/or molecular species. Knowledge of familiar materials was compared and experiences shared on a varied range of different materials, often new materials, including metal oxides, zeolites and other microporous compounds, mesoporous silicates and silica, hybrid inorganic-organic compounds, soil aggregates, layered materials, and bioactive glasses. * Brings together experimental and theoretical information * Provides information on new oxide-based materials with applications in catalysis, pollution control and nanoengineering * Contributions from experts in the field.The International Workshop "New sources, novel phases, new applications", the third of the series on "Oxide based materials", was held September 13 to 16, 2004 at Societ̀ del Casino Sociale in Como, Italy. The workshop brought together experimental and theoretical scientists of different origins and expertise to exchange information on common scientific research fields, especially on all those materials whose features and properties depend on the interaction between surface and ionic and/or molecular species. Knowledge of familiar materials was compared and experiences shared on a varied range of different materials, often new materials, including metal oxides, zeolites and other microporous compounds, mesoporous silicates and silica, hybrid inorganic-organic compounds, soil aggregates, layered materials, and bioactive glasses. * Brings together experimental and theoretical information * Provides information on new oxide-based materials with applications in catalysis, pollution control and nanoengineering * Contributions from experts in the field.Selected contents -- Phase transformations and structural modifications induced by heating in microporous materials. -- The synthesis, characterization and use of metal niobates as catalysts for propane oxidehydrogenation. -- Data processing of cation exchange equilibria in zeolites: a modified approach. -- Cyclohexane photocatalytic oxidative dehydrogenation to benzene on sulphated -- titania supported MoOx. -- Spectroscopic characterization of Fe-BEA zeolite. -- Synthesis of porous catalysts for Beckmann rearrangement of oximes. -- Templated and non-templated routes to mesoporous TiO2. -- Immobilization of Lipase on microporous and mesoporous materials:studies of the support surfaces. -- An EPR study of the surface reactivity of CaO and a comparison with that of MgO. -- The role of surfaces in hydrogen. -- Characterization of nanosized gold, silver and copper catalysts supported -- on ceria. -- Conjugated molecules in nanochannels: nanoengineering for optoelectronics. -- Removal of cadmium, zinc, copper and lead by red mud, an iron oxides containing -- hydrometallurgical waste.Conference proceedings.Includes bibliographical references and author index.Print version record.Elsevie
ToothPic: camera-based image retrieval on large scales
No full textBeing able to reliably link a picture to the device that shot it is of paramount importance to give credit or assign responsibility to the author of the picture itself. However, this task needs to be performed at large scales due to the recent explosion in the number of photos taken and shared. Existing methods cannot satisfy those requirements. Methods based on the Photo Response Non-Uniformity (PRNU) of digital sensors are able to link a photo to the device that shot it and have already been used as proof in the Court of Law. Such methods are reliable but so far, they can be only used for small-scale forensic tasks involving few cameras and pictures. ToothPic, an acronym for "Who Took This Picture?", is a novel image retrieval engine that allows to find all the pictures in a large-scale database shot by a given query camera
The CORAM Project (COsmic RAy Mission)
No full textOn the occasion of the forthcoming centenary of the cosmic ray radiation discovery, a group of researchers from Lecce Physics Department and INFN proposed to repeat an experiment similar to the one performed by Victor Hess in
1912 for outreach and educational purposes. Several High School students are involved in this activity, named CORAM (Cosmic RAy Mission), that provides the design, construction and test of a detector for the measurement of the cosmic ray flux as a function of the atmospheric altitude. The detector is made by scintillator layers
readout by APDs (Avalanche Photo Diode) interposed with appropriate absorber layers and put into coincidence. The experiment will be hosted on an atmospheric balloon from the Italian space agency (ASI Agenzia Spaziale Italiana) that presumably will take off in the summer of 2012. The INFN encouraged and supported this outreach activity by funding the detector and Data Acquisition System (DAQ)
CORAM (COsmic RAy Mission): An outreach program one century after Pacini and Hess works
No full textCORAM (COsmic RAy Mission) is an outreach program carried out by INFN and the University of Salento in close collaboration with high schools. Students and their teachers are involved in the design, construction, test and operation of detectors for the measurement of several properties of the cosmic ray flux. The results of a set of measurements, made with a first detector prototype at different altitudes and underground, will be described. © 2013 Elsevier B.V
Victimization and sentimental relationships during COVID-19 pandemic [Vittimizzazione e relazioni sentimentali durante la pandemia da COVID-19]
No full textCovid-19 pandemic has been hard for all of us. Isolation and social distancing, particularly, have damage the quality of interpersonal relationships. Starting from these considerations the authors questioned what is the impact of the sanitary emergency on the sentimental relationships. Considering that this aspect was already present in the scientific literatures, the authors have narrowed it down to victimization which had not yet appeared in these terms. So, the aim of this study is to evaluate, inside the adult population, if the couples sentimental relationships are different between victimized and not. At last was evaluated if the anxiety, depression and stress moderate the relationship with the victimization. © 2022 Author(s). This is an open access, peer-reviewed article published by Pensa Multimedia and distributed under the terms of the Creative Commons Attribution 4.0 International, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Rassegna Italiana di Criminologia is the official journal of Italian Society of Criminology
italian validation of the health education impact questionnairein people with chronic conditions
No full textBackground: The health education impact Questionnaire (heiQ) measures eight self-management skills in people with chronic conditions. It seems to be important to provide cross-cultural evidence on its properties in non-English healthcare contexts. The present study assessed the psychometric properties of the heiQ in Italian adults with chronic conditions. Methods: Two hundred ninety-nine individuals with a chronic condition (mean age = 61.4 years, 50.16% females) completed the heiQ and the Medical Outcomes Study-Short Form (SF-36). Confirmatory factor analyses, Composite Reliability Indices, and bivariate correlations were performed. Results: Structural validity based on 8 correlated factors with good fit was in line with previous research. Concurrent validity was confirmed, as shown by moderate associations between the scores on the Constructive attitudes and approaches, Self-monitoring and insight, Health directed activities, Social integration and support, and Emotional distress subscales and the scores on SF-36 Physical functioning, General health perceptions, Vitality, Social functioning, Perceived mental health and Role limitations due to physical and emotional problems subscales. Conclusions: The Italian heiQ has strong properties and it can be used routinely also in the Italian healthcare services. © 2020 The Author(s)
Caratteristiche distintive e strategie di prevenzione e intervento sul cyber-bullismo in Italia [Distinctive features, prevention and intervention strategies on cyberbullying in Italy]
No full textNel corso degli ultimi anni la continua evoluzione dei mezzi di comunicazione ha fatto sì che una parte significativa della comunicazione e delle relazioni interpersonali si spostasse su un piano virtuale. La familiarità di bambini e adolescenti con i nuovi strumenti di comunicazione, tuttavia, può avere conseguenze dannose a causa di un utilizzo non consapevole della tecnologia, ponendo questi soggetti in una condizione di vulnerabilità. Il cyberbullismo si configura come una nuova forma di comportamento aggressivo, per certi aspetti più dannosa rispetto al bullismo tradizionale, perché difficilmente controllabile dalla vittima che ha un’oggettiva difficoltà nel difendersi rispetto a un autore che si muove in un mondo contraddistinto dall’immaterialità ed è spesso protetto dall’anonimato della rete. Il presente lavoro si propone di fornire una revisione critica della letteratura sul cyberbullismo analizzandone le definizioni disponibili, le relative concettualizzazioni teoriche e le loro criticità, in- dividuando le caratteristiche distintive a confronto con il bullismo tradizionale ed esaminando le evidenze scientifiche disponibili circa le strategie di intervento e prevenzione nel contesto italiano.During the last years, the continuous evolution of the social media has led to a shift of the communication and interpersonal relationships towards a virtual level. However, the familiarity of children and adolescents with the new communication tools can have harmful consequences due to an unaware use of technology, making these subjects more vulnerable for new forms of aggression. Cyberbullying is a new form of aggressive behaviour, in some respects more harmful than traditional bullying, because the victim has an objective difficulty defending himself/herself against an author who moves in a world characterized by immateriality and is often protected by network anonymity. This paper aims to provide a critical review of the literature on cyberbullying by analysing the available theoretical conceptualizations, identifying the distinctive features in comparison with traditional bullying and examining the scientific evidence about intervention and prevention strategies in the Italian context
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