Search results for "Teoria"

L’anima di New York. Gentrificazione, Artificazione, Turistificazione a partire da Pretend It’s a City di Scorsese

2021

This essay propose an analysis of the docu-series dedicated to the notorious Newyorker writer Fran Lebowitz, Pretend It’s a City, directed by Martin Scorsese and aired by Netflix in 2021. The issues raised by the documentary are discussed with reference to the cinematic culture as well as to the contributions of some of the founding authors of the intellctual debate on gentrification and the city of New York.

Geometrie della natura. Matematica ed epistemologia

2004

Combined effect of turbulence and aerosol on free-space optical links

2017

[EN] Despite the benefits of free-space optical (FSO) communications, their full utilization is limited by the influence of atmospheric weather conditions, such as fog, turbulence, smoke, snow, etc. In urban environments, additional environmental factors such as smog and dust particles due to air pollution caused by industry and motor vehicles may affect FSO link performance, which has not been investigated in detail yet. Both smog and dust particles cause absorption and scattering of the propagating optical signal, thus resulting in high attenuation. This work investigates the joint impact of atmospheric turbulence and dust particle-imposed scattering on FSO link performance as part of the…

Analysis of Fresnel Zone Plates Focusing Dependence on Operating Frequency

2017

[EN] The focusing properties of Fresnel Zone Plates (FZPs) against frequency are analyzed in this work. It is shown that the FZP focal length depends almost linearly on the operating frequency. Focal depth and focal distortion are also considered, establishing a limit on the frequency span at which the operating frequency can be shifted. An underwater FZP ultrasound focusing system is demonstrated, and experimental results agree with the theoretical analysis and simulations.

Pinhole Zone Plate Lens for Ultrasound Focusing

2017

[EN] The focusing capabilities of a pinhole zone plate lens are presented and compared with those of a conventional Fresnel zone plate lens. The focusing properties are examined both experimentally and numerically. The results confirm that a pinhole zone plate lens can be an alternative to a Fresnel lens. A smooth filtering effect is created in pinhole zone plate lenses, giving rise to a reduction of the side lobes around the principal focus associated with the conventional Fresnel zone plate lens. The manufacturing technique of the pinhole zone plate lens allows the designing and constructing of lenses for different focal lengths quickly and economically and without the need to drill new p…

Per una buona psicoanalisi dell’arte: Vygostskij e il Mosè di Freud

2012

The aim of this article is to show that Vygotskijan and Freudian positions on the psychological analysis of art move from a similar conception of art and of human mind. To demonstrate our thesis we have substantially used two works: Vygostkij’s Psychology of art and Freud’s Moses of Michelangelo. We consider that, in spite of the critic that Vygostkij makes against the psychoanalytic approach to the products of art, probably for historic reasons, the importance that he gives to the notion of form, of social context and of conscious factors in artistic creations is the same that Freud gives in his applied psychoanalysis, and this is clear in the essay on Moses. In particular, if we concentra…

Dire e mostrare ovvero l'inconscio relazionale delle parole

2014

Ciò che viene detto trae il suo significato dal non detto che le parole dette mostrano senza dirlo. Questa complessa relazione semantica viene studiata con l'aiuto di Freud e Wittgenstein.

Affetto e rappresentazione in due saggi di Freud del 1893.

2011

Understanding light-driven H 2 evolution through the electronic tuning of aminopyridine cobalt complexes

2017

A new family of cobalt complexes with the general formula [CoII(OTf)2(Y,XPyMetacn)] (1R,Y,XPyMetacn ¼ 1-[(4-X-3,5-Y-2-pyridyl)methyl]-4,7-dimethyl-1,4,7-triazacyclononane, (X ¼ CN (1CN), CO2Et (1CO2Et), Cl (1Cl), H(1H), NMe2 (1NMe2)) where (Y ¼ H, and X ¼ OMe when Y ¼ Me (1DMM)) is reported. We found that the electronic tuning of the Y,XPyMetacn ligand not only has an impact on the electronic and structural properties of the metal center, but also allows for a systematic water-reduction-catalytic control. In particular, the increase of the electron-withdrawing character of the pyridine moiety promotes a 20-fold enhancement of the catalytic outcome. By UV-Vis spectroscopy, luminescence quenc…

Protection Motivation Theory in Information Systems Security Research

2021

Protection motivation theory (PMT) is one of the most commonly used theories to examine information security behaviors. Our systematic review of the application of PMT in information systems (IS) security and the comparison with its application for decades in psychology identified five categories of important issues that have not yet been examined in IS security research. Discussing these issues in terms of why they are relevant and important for IS security, and to what extent IS research has not considered them, offers new research opportunities associated with the study of PMT and IS security threats. We suggest how future studies can approach each of the open issues to provide a new roa…