196,331 research outputs found

    Modelling of VOC air pollution in an urban area

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    For several years the Department of Mechanical, Nuclear and Production Engineering (DIMNP) of the University of Pisa and the Regional Agency for Environment Protection of Tuscany (ARPAT) have collaborated in research on the environmental pollution of our Region. One of the more critical situations with respect to atmospheric pollution is that of Volatile Organic Compounds (VOC) in the city of Livorno, resulting from the presence of an important oil refinery, other industries and traffic pollution. Other important VOC emission sources are related to port activities and to numerous small companies using solvents and paints. This emission scenario suggested the choice of ISC3 code to treat diffuse sources and CALINE 4 for emissions related to traffic on main roads. After discussion of the VOC sources in the Livorno area, the paper focuses on the results of the study. The need for other experimental data for a better characterization of the area is also discussed, as well as the suitability of this methodology to areas with similar characteristics

    L’occupazione alla prova versus la prova dell’occupazione. Percorsi progettuali e reputazionali nell’esperienza dei social workers del terzo settore

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    L’indagine ha concentrato la sua attenzione sui lavoratori del sociale afferenti adenti del terzo settore attualmente occupati su progetti di reinserimento lavorativo nel tentativo di analizzare caratteristiche, modalità operative, problematiche della loro attività professionale. Dopo avere approfondito nei precedenti Rapporti dell’Osservatorio Sociale Regionale su povertà e inclusione sociale in Toscana (2021 e 2022) la situazione lavorativa degli assistenti sociali all’interno dei servizi pubblici, infatti, è emersa la necessità di approfondire anche lo spaccato parallelo e contiguo, talvolta inseparabile, di coloro che, con professionalità differenti compresa quella di assistente sociale, operano nel sempre più diffuso e sussidiario ambito del terzo settore

    New developments in MacroInorganics. The thermodynamics of basic polymers

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    The protonation and complex formation of some basic polymers have been studied in aqueous solution by potentiometric, calorimetric, spectrophotometric and viscosimetric techniques. Specific methods for the treatment of either ‘sharp’ or ‘apparent’ thermodynamic functions in polyelectrolyte bearing one or two basic groups in the repeating unit have been developed. The results are related to structure features and presence of various types of chemical function besides the aminic function
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