105 research outputs found

    LA TRIADE «GIFT ECONOMY-ECONOMIA CIVILE-NON PROFIT» UNA PROSPETTIVA PER IL RILANCIO DEL MEZZOGIORNO

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    This paper is divided into four sections. In the first part the key points of the system of the «gift economy» are outlined, as opposed to market economy in the strict sense, since it bases its «status» on the usage value, rather than on the trade (or commercial) value of goods; in the second part current aspects of this system are emphasized, also in reference to the new issues of «degrowth» and «economy without money». In the third and fourth sections, referring specifically to Southern Italy, it is investigated whether the presence of a historically founded substrate of civil economy may represent a useful basis for the spread of non-profit organizations as a force for economic and social growth of this area. In this context, taking into consideration the role of the State in promoting and developing «Third Sector» businesses is the «landing point» and the «proposal » of this paper

    Il Tessile/Abbigliamento in Campania: tra memoria storica e prospettive future

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    Allo scopo di fornire una fotografia dell’attuale morfologia del tessile-abbigliamento campano, abbiamo inteso tracciare in questo studio le linee-guida del processo evolutivo che, partendo dalle esperienze della prima metĂ  del XIX secolo ha condotto all’attuale assetto del comparto. Pur scontando tutte le difficoltĂ  innescate dalla globalizzazione, il tessile-abbigliamento made in Campania (ed in specie il settore-moda, sua punta di eccellenza) Ăš ancor oggi apprezzato nel mondo per le sue produzioni di qualitĂ , caratterizzate da profili di lavorazioni sartoriali e dall’hand made, che affondano le loro radici in lavorazioni tipiche, patrimonio di culture e tradizioni fortemente radicate nella storia e nel territorio della regione. Da un punto di vista metodologico, la ricerca - che non puĂČ prescindere da una contestualizzazione del tema in ambito nazionale – ha inteso far leva, oltre che sullo studio critico e lo screening della bibliografia in materia, sullo spoglio» e sull’analisi di diverse fonti statistiche. Adottando, quindi, un approccio storico abbiamo inteso seguire a 360° la traccia del percorso evolutivo del settore, giacchĂ© reputiamo che solo nelle pieghe di un processo di ampio respiro sia possibile cogliere le ragioni strutturali alla base della composita morfologia del settore, ovvero i suoi punti di forza, le sua aree critiche, i suoi «snodi», le sue tendenze evolutive

    Technical note: Rapid method for determination of amino acids in milk.

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    A rapid method for measurement of amino acids in milk was developed and validated. The method included a first step of milk protein hydrolysis, followed by the derivatization and separation of amino acids by HPLC. Six combinations of hydrolysis agent and temperature-time conditions were compared with a reference method; derivatization procedures as well as HPLC separation were improved. Hydrolysis of milk samples with 6 N HCl at 160 degrees C for 60 min resulted in no significantly differences compared with the reference method but allowed the analysis of a greater number of milk samples in a short time. In addition, this method was characterized by high precision, low repeatability uncertainty, and high accuracy for all amino acids evaluated; the recovery mean value of the single amino acids was 98.38%. The proposed method is, therefore, accurate, simple, rapid, and suitable for large numbers of milk samples

    Large Follicular Cyst Associated with Upper Third Molar in the Maxillary Sinus with Pterygomaxillary Space Extension: Reflection on a Case Report

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    BACKGROUND: Follicular cysts are osteolytic lesions characterized by greater growth, differentiation, and degeneration potentials, compared to inflammatory root cysts. Those connected to upper third molars can disrupt the neighboring teeth and extend to maxillary sinus and adjacent anatomical structures. CASE PRESENTATION: In this study, we present a case of a large dimension follicular cyst associated with the upper third molar, extended to maxillary antrum and pterygomaxillary space, uncommon for dimensions, involving meso- and sovra-structure describing the clinical diagnostic procedures, and the surgical strategies adopted. The cone-beam computed tomography allowed a very accurate analysis of the lesion. Surgical excision was performed through Caldwell-Luc technique, approaching to the pterygomaxillary space. A 1-year follow-up shows good clinical, anatomical, and functional conditions. Histological examination confirmed the diagnosis of follicular cyst. CONCLUSION: Giant follicular cysts require an accurate pre-operative study due to the delicate structures that may be involved

    MWCNT/rGO/natural rubber latex dispersions for innovative, piezo‐resistive and cement‐based composite sensors

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    The present study is focused on the development and characterization of innovative cementitious-based composite sensors. In particular, multifunctional cement mortars with enhanced piezoresistive properties are realized by exploiting the concept of confinement of Multiwall Carbon Nanotubes (MWCNTs) and reduced Graphene Oxide (rGO) in a three-dimensional percolated network through the use of a natural-rubber latex aqueous dispersion. The manufactured cement-based composites were characterized by means of Inelastic Neutron Scattering to assess the hydration reactions and the interactions between natural rubber and the hydrated-cement phases and by Scanning Electron Microscopy and X-Ray diffraction to evaluate the morphological and mineralogical structure, respectively. Piezo-resistive properties to assess electro-mechanical behavior in strain condition are also measured. The results show that the presence of natural rubber latex allows to obtain a three-dimensional rGO/MWCNTs segregate structure which catalyzes the formation of hydrated phases of the cement and increases the piezo-resistive sensitivity of mortar composites, representing a reliable approach in developing innovative mortar-based piezoresistive strain sensors
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