Search results for "Tecnologie"
showing 10 items of 1379 documents
On the mechanism of radiation synthesis of nanogels
2016
Radiation-engineered poly(N-vinyl pyrrolidone) nanogels are very interesting biocompatible nanocarriers for i.v. administration of therapeutics and contrast agents for bioimaging among other applications. Nanogels are usually produced upon irradiation of dilute aqueous polymer solutions. Under these conditions, the polymer radicals formed primarily react via intramolecular radical-radical combination forming intramolecular crosslinks. The manufacturing process is fast and effective and grants excellent control of particle size and simultaneous sterilization of the formed nanogels. Interestingly, primary amino groups and carboxyl groups, useful for (bio)conjugation, are also formed in a dose…
I suicidi rituali nella civiltà tecnologica: aspetti culturali tra science-fiction e new age
2007
Catalytic applications of TiO2
2021
Abstract The use of TiO2 as heterogeneous catalyst and/or active support for metals or other oxides is here reported. Many reactions of industrial relevance involve, in fact, titania-based catalysts, among them, NOx abatement, Fischer–Tropsch and water–gas shift, Deacon and Claus processes, hydrodesulfurizations and hydrogenations, selective reductions and selective oxidations. This chapter aims to discuss the main applications of TiO2, in its different forms, as effective support or catalyst for thermocatalytic and photo-thermocatalytic reactions, focusing on the role of its structural and physicochemical properties on the catalytic performance (activity, selectivity, stability).
Il design della Tecno-Natura. Nuovi scenari del design sostenibile nell'epoca delle nanotecnologie.
2011
La formazione a distanza dei docenti sulla metodologia dell’apprendimento basato sui problemi (PBL)
2022
In questi ultimi anni, il lockdown, tra didattica a distanza prima e didattica integrata poi, ha imposto in tempi brevi un processo di digitalizzazione nella formazione, un aggiornamento tecnologico in materia di piattaforme e di connessione, nonché l’attivazione degli insegnanti sul piano metodologico. Nella ricerca sono stati coinvolti 98 docenti di scuola secondaria di primo grado. Questi hanno partecipato ad una attività formativa in rete mediante la metodologia del Problem Based Learning (PBL), basata sull’approccio “Seven Jump” di Barrows e Tamblyn (1980). È stata articolata in 3 incontri, di 3 ore ciascuno, durante i quali si sono alternate, utilizzando la piattaforma Microsoft Teams…
Educational innovation through ICTs in the university setting. What do students think of these practices?
2014
Aquest document vol donar a conèixer l'experiència duta a terme per un grup d'estudiants durant el desenvolupament d'un programa destinat a alumnes innovadors de la Universitat de València. La immersió actual de les tecnologies en tots els àmbits de la societat i en l'educació planteja noves incògnites sobre com es desenvolupen aquestes experiències educatives. El projecte presentat era enfocat als alumnes amb vista a desenvolupar un treball que relacionés les tecnologies de la informació i la comunicació (TIC) amb els contextos d'aprenentatge universitaris. Així, en l'article es presenten les experiències, vivències i conclusions a les quals s'ha arribat quan s'ha acabat el projecte.
A New Theoretical Approach on Teenage Cyclist-Vehicle Crash
2016
Data obtained in teenage cyclist impact against three vehicles (sedan, SUV and Pick Up), tested in previous works, are analyzed to verify the theoretical results by the coupling of momentum conservation principle and energy conservation principle. The speed of vehicle and thorax are compared with theoretical ones, obtaining an excellent agreement. Following the results found in the literature, particular emphasis is done on teenager cyclist thorax and head speeds, indicating that the cyclist speed can be theoretically until 1,41 times the impact speed, while greater values, until 2, are obtained in the simulations. A small slowing of the vehicle is found theoretically and in the simulations…