Academic literature on the topic 'Attivatore'
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Journal articles on the topic "Attivatore"
Dezio, Catherine. "Verso un'infrastruttura materiale e immateriale per la Bioregione." TERRITORIO, no. 93 (January 2021): 32–36. http://dx.doi.org/10.3280/tr2020-093005.
Full textGarosi, G. "Il Caso Clinico Riuscito trattamento di trombosi acuta della vena cava inferiore e di una vena renale con infusione locale di attivatore tessutale ricomhinante del plasminogeno." Giornale di Clinica Nefrologica e Dialisi 11, no. 1 (January 1, 1999): 33. http://dx.doi.org/10.33393/gcnd.1999.1701.
Full textCozzolino, M., S. Pasho, C. Crovetto, and E. Missaglia. "Trattamento dell'iperparatiroidismo secondario: calciomimetici, attivatori selettivi del recettore della vitamina D (VDRAs) o terapia combinata?" Giornale di Clinica Nefrologica e Dialisi 19, no. 3-4 (July 1, 2007): 28–33. http://dx.doi.org/10.33393/gcnd.2007.1518.
Full textCozzolino, M., S. Pasho, C. Crovetto, and E. Missaglia. "Trattamento dell'iperparatiroidismo secondario: calciomimetici, attivatori selettivi del recettore della vitamina D (VDRAs) o terapia combinata?" Giornale di Tecniche Nefrologiche e Dialitiche 19, no. 3-4 (July 2007): 28–33. http://dx.doi.org/10.1177/039493620701903-406.
Full textHorrakh, Livio. "L'intertestualità: un intervento macrostrutturale nell'ambito dei meccanismi di funzionamento testuale in dipendenza al problema della traduzione." Linguistica 31, no. 1 (December 1, 1991): 445–54. http://dx.doi.org/10.4312/linguistica.31.1.445-454.
Full textMoretti, Marco, Barbara Pieretti, Maria Rita Sadori, Simonetta Gasperoni, Daniela Sbrozzi, Mariangela Di Lillo, Daniela Carloni, Marzia Iacomucci, Maria Luisa Eusepi, and Enzo Pazzaglia. "Un tempo di tromboplastina parziale attivato (aPTT) che non ti aspetti." La Rivista Italiana della Medicina di Laboratorio - Italian Journal of Laboratory Medicine 12, no. 3 (June 1, 2016): 182–86. http://dx.doi.org/10.1007/s13631-016-0119-5.
Full textLonardi, Giulia, Giovanni Bertin, Stefano Campostrini, Alberto Arlotti, Pirous Fateh Moghadam, and Francesca Russo. "La valutazione nella promozione dell'attivitŕ motoria." RIV Rassegna Italiana di Valutazione, no. 50 (December 2012): 73–107. http://dx.doi.org/10.3280/riv2011-050006.
Full textCeccarini, Luana, and Salvatore Rao. ""In-tre-cci: Casa - Cura - Comunità". Un progetto per promuovere una pratica di salute comunitaria." PSICOLOGIA DI COMUNITA', no. 2 (September 2020): 41–62. http://dx.doi.org/10.3280/psc2020-002004.
Full textLingua, Valeria. "Limiti e opportunitŕ della democrazia partecipativa nei piccoli comuni." ARCHIVIO DI STUDI URBANI E REGIONALI, no. 97 (February 2011): 297–316. http://dx.doi.org/10.3280/asur2010-097017.
Full textMarinelli, Alberto. "Socievolezza 2.0. I legami sociali nella network society." SOCIOLOGIA DELLA COMUNICAZIONE, no. 41 (May 2012): 30–50. http://dx.doi.org/10.3280/sc2011-041004.
Full textDissertations / Theses on the topic "Attivatore"
Piccolella, M. "Caratterizzazione del sistema attivatore del plasminogeno nella progressione metastatica del cancro prostatico umano." Doctoral thesis, Università degli Studi di Milano, 2007. http://hdl.handle.net/2434/166305.
Full textMILANA, PAOLA. "Single-site metal activator for enhancing curing efficiency and substituting zinc in rubber vulcanization process." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2022. http://hdl.handle.net/10281/381164.
Full textRubber materials are nowadays used for many applications, ranging from shoes, adhesives, and gloves. Since most rubber is used to produce tires, both sulfur vulcanization and reinforcing fillers such as silica nanoparticles (SiO2 NPs) are used to obtain highly performant tires. To enhance the rate of the curing process, activators (ZnO), accelerators (sulfenamides) and co-activators (fatty acids) are usually used. Zinc single site-based activator, previously developed and based on Zn (II) ions anchored on the SiO2 NPs through the formation of a metal complex, demonstrated to be more efficient than ZnO and to reduce the leaching phenomenon of Zn2+ ions, thus reducing the environmental impact. The aim of this research project was to achieve a complete knowledge of its catalytic activity, to tune and control the vulcanization efficiency and the mechanical behaviour of the final rubber nanocomposite (NC). To reach this objective the chemical nature of the zinc single site-based activator has been changed by following three strategies: ● change the ligand of the metal complex to study the activator’s vulcanization efficiency arising from the different coordination sphere of the metal centre; ● exploit a different localization of the metal centre on the filler surface or a different distribution of the activator in the polymer matrix to study the effect on the mechanical behaviour of the NC; ● change the metal of the complex, with the aim to reduce the zinc content in the rubber vulcanization process. In the first part of the research, the catalytic activity of the zinc single site-based activator has been investigated by changing the coordination sphere of the metal using different organic ligands. Depending on the stability of the metal complex formed, a different vulcanization efficiency was observed: a too high stability of the complex, like the one observed using sulphur ligands, hinders the participation of Zn2+ ions to the curing reaction. Instead, stable bonds but reactive towards the curing reactions, such as in the case of amino and carboxyl ligands, promote higher catalytic activity of the activator. Later on, the research focused on the study of the influence that the localization of the metal centre has on the mechanical behaviour of rubber NCs, underlying a strong relationship between the localization of Zn2+ ions and the density and distribution of crosslinks inside the polymer matrix. In order to study the influence on the NC mechanical behaviour, a different localization of the metal centre was achieved by using longer hydrocarbon chains-based ligands, and the different distribution of the activator in the polymer matrix was reached by assembling the activators NPs in supraparticles (SPs). Finally, the approach of localizing the metal centre on the filler surface was used to develop a new activator based on Fe (III) ions anchored on SiO2 NPs. Its vulcanization efficiency was tested, and promising results were obtained, since higher efficiency than ZnO was observed, making the iron single site-based activator a possible substitute of ZnO in the rubber production.
Fabbri, Riccardo. "Sviluppo di processi di geopolimerizzazione innovativi." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.
Find full textTINTO, BARBARA. "Due attivatori trascrizionali di Hansenula Polymorpha." Doctoral thesis, Università Politecnica delle Marche, 2008. http://hdl.handle.net/11566/242617.
Full textMOSTONI, SILVIA. "From nanosized to single sites zinc-based activators for rubber vulcanization process." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2019. http://hdl.handle.net/10281/241069.
Full textRubber nanocomposites (NCs) are commonly used materials in tyres industries. Their mechanical properties are the combined result of the addition of reinforcing filler nanoparticles (NPs) and the vulcanization process. Sulphur vulcanization reaction is based on the formation of a chemical cross-link between polymer chains through mono-, bi- and poly-sulphide bridges. The enhancement of the vulcanization rate and cross-linking efficiency is achieved thanks to a complex catalytic system, composed of accelerators (as sulphenamides), activators (metal oxides) and co-activators (fatty acids). Zinc oxide (ZnO) is the primary industrial activator and a main role is recognized to zinc ions, able to influence both kinetic and mechanistic aspects of the reaction, through the shortening of sulphur bridges in the products (associated to higher cross-linking densities). Nevertheless, some drawbacks are connected to the low dispersion of ZnO, because of the low affinity with the rubber, such as the use of high ZnO amount in rubber (3-5 parts per hundred rubber) and environmental issues, due to zinc release during the lifecycle of tyres. In this scenario, the aim of the PhD project is the development of innovative zinc-based activators for rubber vulcanization process, to reduce the amount of microcrystalline ZnO used in the industrial process and to decrease the zinc leaching during the preparation and use of the material, keeping a high vulcanization efficiency. Thus, the introduction of more active zinc species in the form of reactive sites has been proposed. Starting from nanosized ZnO particles anchored onto surface silica particles (ZnO/SiO2), single zinc sites (Zn/SiO2) dispersed on silica were synthesized, to exploit the advantages derived from the higher distribution, while increasing the availability and reactivity of the activator towards the other vulcanization reagents. In the first part, the syntheses of the materials were studied and their properties deeply investigated, through structural, morphological and surface analyses. The formation of amorphous ZnO NPs with tunable zinc loading and size on silica was achieved exploiting an optimized sol-gel procedure, based on hydrolysis and condensation of a zinc precursor in a basic environment. Besides, isolated zinc(II) centres anchored to silica were synthesized in a two-step reaction, in which silica was pre-functionalized with a grafting agent ((3-aminopropyl)triethoxysilane, APTES) and then reacted with a zinc precursor. The experimental characterization suggested the coordination of each zinc isolated centres to two amine groups and two labile groups (hydroxide or nitrate), promoting a higher reactivity. Both ZnO/SiO2 and Zn/SiO2 were tested as activators in rubber NCs and compared to microcrystalline ZnO; higher vulcanization efficiencies and improved mechanical properties were achieved, with increased cross-linking densities, using half of the conventional amount of ZnO. Lately, the kinetic of the vulcanization reaction was studied thanks to a model approach, called “Model Compound Vulcanization” (MCV). This study highlighted that the vulcanization process proceeded with an improved kinetic and following different reaction mechanisms. In particular, Zn centres were proved to behave as heterogeneous catalytic sites during the reaction, with a potential impact on the reduction of zinc leaching from rubber NCs and a direct consequence on the cross-linking distribution of the vulcanized rubber NCs, evidenced through advanced morphological and mechanical analyses. Finally, the modulation of the structural parameters of the activators and the use into non-conventional systems, including anisotropic NPs reinforced NCs and organically modified polymers, demonstrated the possible modulation of their reactivity and the high versatility of the materials for applications into different systems.
Boato, Giulia <1991>. ""Music Makes You Move". I festival e gli eventi musicali come attivatori turistici." Master's Degree Thesis, Università Ca' Foscari Venezia, 2018. http://hdl.handle.net/10579/12133.
Full textCiciriello, Riccardo. "Ossidazione elettrocatalitica della lignina su schiume di Ni attivate." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21663/.
Full textPegoraro, Andrea Celeste <1993>. "Welfare aziendale: analisi delle principali iniziative attivate nel mercato del lavoro danese." Master's Degree Thesis, Università Ca' Foscari Venezia, 2018. http://hdl.handle.net/10579/13834.
Full textCALCAGNO, ELISA. "Il ruolo del cGMP e di Aβ nei processi di formazione della memoria. Caratterizzazione di nuovi HAT attivatori per la terapia della malattia di Alzheimer." Doctoral thesis, Università degli studi di Genova, 2019. http://hdl.handle.net/11567/938046.
Full textFerrucci, Marco. "Studio sperimentale di masselli per pavimentazioni ad elementi realizzati con materiali di riciclo." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.
Find full textBooks on the topic "Attivatore"
Zorzi, Andrea, ed. Storia di un dottorato: storia medievale nell'Università di Firenze. Florence: Firenze University Press, 2003. http://dx.doi.org/10.36253/978-88-6453-100-7.
Full textLIBRES, Mentes. Azione Del Pensiero Positivo: Attivate il Potere Del Pensiero Positivo e Iniziate a Raggiungere I Vostri Obiettivi! Independently Published, 2020.
Find full textConference papers on the topic "Attivatore"
Calisi, Daniele, Maria Grazia Cianci, and Francesca Geremia. "Strumenti contemporanei a servizio del passato: il quartiere della Suburra a Roma tra storia e attualità." In International Conference Virtual City and Territory. Roma: Centre de Política de Sòl i Valoracions, 2014. http://dx.doi.org/10.5821/ctv.8008.
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