1,728 research outputs found
Adriatic Inner Sea. Resilience paths from the Trabocchi coast to Lanciano along the abandoned Sangritana railway line
No full textThe research “Resilience paths. Regeneration of fragile territories from the Mediterranean coast to inner areas”,
deepened within the participation in the Cluster “le Vie del Mediterraneo/Medways” is the joint path that integrates
some research paths promoted by the Sapienza University of Rome and the Politecnico of Milan: the project of the
PDTA Department “Resilience paths. The relaunch and reuse of minor railways line for the regeneration of fragile
territories. Practices in Italy and Spain” (Ravagnan, Amato, 2020) and the project “Territori Fragili” of the DASTU of the
Politecnico di Milano. This joint research path focuses on the divested minor railway lines connecting inner areas to the
Mediterranean coast, investigating, with an interdisciplinary perspective, the opportunities that emerge from a possible
strengthening of the bicycle/pedestrian networks within the framework of an intermodal and multiscalar mobility system
(Ravagnan, Amato, 2021).
The implementation of greenways connecting the Mediterranean coast to inner areas is a scenario of sustainable
development and a proactive strategy of resilience (Pike & al., 2010) for fragile territories from the environmental,
social, and economic point of view. The complexity and richness of these territories, crossed by stratified systems of
territorial networks, require the deployment of an integrated and multiscalar approach, through inter-municipal strategic
planning and urban projects.
In this framework, the joint path is aimed at harmonizing traditional urban planning approaches, with other data
analysis to improve the sustainability of urban design. To this end, the study also involves planning experimentation on a
specific scope, regarding the reuse of the Ferrovia Adriatica Sangritana (FAS) in the Abruzzo Region, which is affected
by phenomena of divestment and suggests regeneration processes, developed in an interdisciplinary master’s degree
Thesis (Gunaydin, 2021). The analysis and the proposal have been held by combining the morphological, environmental landscape, and functional analysis of the territory, traditional within the urban planning discipline (Ravagnan, Amato, 2020) with innovative quantitative methodologies by resorting to the use of GIS in parallel with NURBS modelers, interfaced with parametric digital tools (D’Uva, Eugeni, 2021). The multidisciplinary analysis held on the territory configures the reuse of the decommissioned FAS line in the section San Vito Marina - Lanciano as a reference structure for strategic planning and the sustainable urban project for Lanciano
Spazio pubblico e rigenerazione urbana. Tra storia e dismissione
No full textIn the contemporary city, we are witnessing the gradual loss of collective interest in traditional public spaces and the irruption of infrastructural divestment urban voids, places of hinge between historical and consolidated city, evidence of different eras and stories. Because of the socio-economic crisis and the phenomena of urban fragmentation, these areas represent an opportunity to guarantee for local communities a better usability of the places of relationship, as public city's frame, and a greater environmental and urban quality, as new regeneration propulsion poles. On the one hand, the desire to regain possession of configured open spaces becomes the expression of an identity theme, since these areas require inclusive practices for revitalization that aim at preserving the heritage historical memory and the innovation of collective uses; on the other hand, the transformation of the disused railway stations, due to their importance in the urban fabric and the complexity of the legal system of the FS, is a place of experimentation.
The paper intends to deal the case of Bergamo, in particular the strategic areas of the Polo of Culture and of the New South Gate Intermodal Center, defined by the PGT 2010, in which the morphological and functional continuity between the parts contributes to the construction of a structuring axis that tries to reconstruct the relationships between historical and consolidated urban fabrics, for a new idea of the city
Centri storici minori e patrimonio ferroviario in abbandono: le opportunità di rigenerazione
No full textI fenomeni di proliferazione diffusa degli insediamenti e le modalità intensive di sfruttamento delle risorse territoriali stanno progressivamente determinando la perdita del rapporto tra centri storici e contesto urbano-territoriale, che insieme ai cambiamenti d’uso, all’obsolescenza dei sistemi della mobilità, ai vuoti urbani esito delle trasformazioni dei modelli di produzione, determinano la necessità di nuove strategie di riequilibrio territoriale. Per quei centri storici minori, che vivono fenomeni di abbandono da parte della popolazione originaria, di aumento dell’età media insediata e fragilizzazione delle economie e dei luoghi, la varietà dei beni culturali è frutto di caratteri identitari ancora ben individuabili, forme e significati che vanno preservati. In una concezione più ampia della nozione di patrimonio culturale si ritiene possano ascriversi a pieno titolo le reti ferroviarie minori, con particolare riferimento a quelle con caratteri storici, sia nelle opere sia nei percorsi. Il carattere di abbandono o sottoutilizzo in cui verte una quantità sempre maggiore di linee secondarie, frutto dei processi di liberalizzazione e di politiche di mobilità inique, che hanno prodotto enormi costi sociali in termini di esclusione, mancanza di accessibilità ai beni e servizi primari, disuguaglianza territoriale e marginalità nei confronti delle grandi aree urbane (SNAI, 2014), si traduce oggi in un’opportunità di rigenerazione delle linee, fili interrotti che conducono a opere di forte pregio e identità, stazioni, viadotti, ponti, case cantoniere, elementi da risignificare in una prospettiva di rilancio dei centri storici minori verso una inversione dell’attuale carattere marginale di tali realtà
Recensione a: Luigi Piccioni, Il volto amato della patria. Il primo movimento per la protezione della natura in Italia 1880-1934, Trento, Editrice Temi, 2014
No full textLa recensione presenta la nuova edizione del volume "Il volto amato" (uscito per la prima volta nel 1999) che è arricchita da un apparato di note completamente aggiornato e, nella postfazione, da una rassegna ragionata dei principali volumi apparsi in Italia e in Europa negli ultimi anni. Nel volume vengono illustrati, a partire dalla fine dell'Ottocento, i dibattiti, le proposte legislative, le associazioni e i gruppi di pressione variamente tesi alla protezione del patrimonio artistico e naturale
La Transiberiana d’Italia
No full textThe phenomena of socio-economic polarization, metropolization and intensive exploiting of territorial resources have progressively weakened the relationship between historic centres and territorial context, fostering unsustainable forms of mobility and land use transformations that require new strategies for territorial rebalancing and regeneration.
In particular, on the one hand, minor historic centres are nowadays involved in phenomena of abandonment, ageing of the population, declining of local economies that suggest a relaunch of activities and facilities in the framework of sustainability, denying speculative and pollutant touristic development. On the other hand, the heritage of these inner areas, constituted by landmarks of Italian historic masterpieces, need a preservation and valorisation of their identity forms and cultural values within a territorial point of view.
In this context, the increasing number of secondary lines characterized by underutilization, result of liberalization processes and unfair mobility policies, have produced enormous social costs in terms of social exclusion, depopulation and weakening economies of widespread historic settlements.
The paper focuses on the role of dismissed minor railway networks, at the same time, for enhancement and relaunch of this minor historic centres and territory, with particular reference to railways lines of landscape interest and historic trains, in a broader concept of the notion of cultural heritage. In fact, the abandonment of this mobility networks is recognized as a challenging opportunity for the regeneration of lines, stations, bridges, roadman’s houses, and the innovation of tourist services towards resilience paths, supporting the reflection with an emblematic best practice from the Abruzzo and Molise Regions
The role of art for the regeneration of the public city. The experiences of the Metropolitan Cities of Palermo and Naples
No full textThe progressive dissolution of common heritage of material and immaterial values, caused by the
intensification of phenomena of congestion and fragmentation of public spaces, transforming them into
residual and abandoned spaces even in historic areas, requires the development of a regeneration
strategy in marginal contexts, promoting functional and morphological approach through an innovative
and creative way of public spaces uses.
In this context, culture and art become propulsive elements for regeneration strategies, being bearers
of new values of inclusion and urban quality, as developed by the experience of Strategic Plan of
Metropolitan City of Palermo, city of intense and widespread cultural and artistic creativity, which
attributes the role of socioeconomic development of the historic city to culture and art, involving Palermo
community in the activation of virtuous regeneration processes.
At the same time, the use of art as a leitmotif of regeneration projects, integrating city flows with
architectural and functional aspects of public city for realization of widespread and interactive museums,
is at the base of the experience of Art Stations and of Strategic Plan of Metropolitan City of Naples, with
policies that integrate urban planning, mobility and cultural heritage, for a paradigm shift of mobility
spaces, previously seen only in their functional aspect, but today also as public spaces, integral part of
the metropolitan identity and of city transformation
Recovery of precious metals from printed circuit boards by cyanogenic bacteria: Optimization of cyanide production by statistical analysis
No full textThe present work was focused on mobilizing Ag from the waste printed circuit boards (WPCBs) of discarded computers by bioleaching. In this contest, bioleaching promoted by bacteria may be regarded as a potential alternative to conventional cyanidation and chemical leaching. The capacity of a cyanogenic bacteria, Pseudomonas aeruginosa (P. aeruginosa), for cyanide production and Ag mobilization from electronic waste was assessed. Also, in order to maximize cyanide production, the influence of the initial pH and glycine concentration was studied and optimized via central composite design of a response surface methodology (CCD-RSM). In the optimal conditions (pH 8 and 1 g/L of glycine) P. aeruginosa produced around 10 mg/L cyanide. Therefore, the bioleaching experiments were performed under the synergistic effect of glycine and cyanide through a two-step process. In the first step the bacteria were grown in the optimized conditions and in the second step, after the maximum cyanide production was reached, WPCBs were added to the growth medium and the pH was set to 9. The optimization resulted in 90% Ag mobilization. In addition, the Au bioleaching was investigated and observed with an efficiency around 20%. Considering the current availability of WPCBs on the market, the results are very promising for the development of recycling processes in the spirit of circular economy
Metropoli resilienti. La risposta della pianificazione francese alle sfide emergenti
No full textLa fase della metropolizzazione del territorio, accompagnata dalla profonda crisi economico-finanziaria globale del
2008 ha decretato in molti paesi l’improrogabile avvio di riforme istituzionali, che hanno determinato una
riconfigurazione del sistema di pianificazione, attraverso l’istituzione di enti di scala metropolitana e
intercomunale. Questi costituiscono oggi gli ambiti di riferimento privilegiati per la messa in campo di strategie di
rigenerazione finalizzate ad assetti urbani e metropolitani sostenibili, efficienti ed inclusivi, attraverso la
costruzione di reti materiali e immateriali: reti della mobilità pubblica e dolce, infrastrutture verdi, spazi pubblici
identitari ma anche reti culturali e sociali, per lo scambio di informazioni e l’interazione di soggetti, per la
promozione di stili di vita salutari e di economie green e creative.
In questo contesto, il caso delle metropoli francesi è ricco di esperienze che riconoscono come componenti
strategiche le reti materiali e immateriali nella pianificazione, ai fini di una indispensabile ricomposizione della
frammentazione morfologica e delle disparità socio-economiche tra citta’ storica, periferie consolidate e habitat
pavillonnaire. Dagli SCOT ai PLUI, gli apparati conoscitivi contenuti nei “diagnostic”, i processi partecipativi con gli
“atelier” e le indicazioni delle “OAP - Orientations d’Amenagement e de Programmation”, si connotato di nuovi
contenuti da cui emerge una particolare e attenta analisi alle reti fisiche infrastrutturali, dello spazio pubblico e
ecologico-ambientali come elementi strutturanti per la rigenerazione affiancando la costruzione delle
infrastrutture per la mobilita’ e la fruizione alle reti sociali e tecnologiche capaci di determinarne la sostenibilita’ e
la fattibilita’ degli interventi, anche tempestivi e/o temporanei, di rigenerazione alla scala locale, urbana e
territoriale, alla luce degli eventi calamitosi connessi al climate change, alle alluvioni degli scorsi anni, alla pandemia
del 2020.
In questo quadro, il paper approfondisce il quadro di riferimento francese e le esperienze in corso nella metropoli
parigina, con particolare riferimento al caso dell’EPT Est Ensemble, per indagare come le recenti best practices di
pianificazione territoriale-strategica e urbanistica stiano recependo nell’apparato del piano nuovi contenuti
analitici e progettuali per far fronte alle sfide emergenti e per identificare riferimenti utili per la pianificazione nelle
città metropolitane in Italia
Correction to: The Italian multiple sclerosis register (Neurological Sciences, (2019), 40, 1, (155-165), 10.1007/s10072-018-3610-0)
No full textUnfortunately in the original publication, the affiliation of the author Maria Pia Amato was incorrect. The author inadvertently missed out to include her second affiliation. The correct affiliation for Maria Pia Amato should read as follows: 3Department NEUROFARBA, MS Center AOU Careggi, University of Florence, Florence, Italy 4IRCCS Fondazione Don Carlo Gnocchi
Non-toxic, high selectivity process for the extraction of precious metals from waste printed circuit boards
No full textThe work presented here focused on the extraction of gold (Au), silver (Ag) and palladium (Pd) from electronic waste using a solution of ammonium thiosulfate. Thiosulfate was used as a valid alternative to cyanide for precious metal extractions, due to its non-toxicity and high selectivity. The interactions between sodium thiosulfate, total ammonia/ammonium, precious metal concentrations and the particle size of the waste printed circuit boards (WPCBs) were studied by the response surface methodology (RSM) and the principal component analysis (PCA) to maximize precious metal mobilization. Au extraction reached a high efficiency with a granulometry of less than 0.25 mm, but the consumption of reagents was high. On the other hand, Ag extraction depended neither on thiosulfate/ammonia concentration nor granulometry of WPCBs and it showed efficiency of 90% also with the biggest particle size (0.50 < Ø < 1.00 mm). Pd extraction, similarly to Au, showed the best efficiency with the smallest and the medium WPCB sizes, but required less reagents compared to Au. The results showed that precious metal leaching is a complex process (mainly for Au, which requires more severe conditions in order to achieve high extraction efficiencies) correlated with reagent concentrations, precious metal concentrations and WPCB particle sizes. These results have great potentiality, suggesting the possibility of a more selective recovery of precious metals based on the different granulometry of the WPCBs. Furthermore, the high extraction efficiencies obtained for all the metals bode well in the perspective of large-scale applications. [Figure not available: see fulltext.
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