Search results for "RIZ"
showing 10 items of 9613 documents
ERIS: An Approach Based on Community Boundaries to Assess Polarization in Online Social Networks
2022
Detection and characterization of polarization are of major interest in Social Network Analysis, especially to identify conflictual topics that animate the interactions between users. As gatekeepers of their community, users in the boundaries significantly contribute to its polarization. We propose ERIS, a formal graph approach relying on community boundaries and users' interactions to compute two metrics: the community antagonism and the porosity of boundaries. These values assess the degree of opposition between communities and their aversion to external exposure, allowing an understanding of the overall polarization through the behaviors of the different communities. We also present an i…
La responsabilità (art. 2462 c.c.)
2016
La pubblicazione ha ad oggetto l'analisi dell'art. 2462 c.c., inerente il regime della responsabilità dei soci della s.r.l. Il commento si sofferma sui connotati tipologici della società a responsabilità limitata, a seguito delle innovazioni legate alla riforma del diritto societario del 2003. Particolare attenzione è dedicata, inoltre, alla disciplina della responsabilità dell'unico socio ed al regime giuridico delle operazioni compiute anteriormente all'iscrizione della s.r.l. nel registro delle imprese.
Assessment of the moisturizing potential of a two-phase topical care product containing vegetable oils, glycerin, panthenol, and sodium hyaluronate -…
2022
The presence of moisturizing substances and lipid substances determines the integrity of the epidermis cells and their barrier functions because it protects the interior of the body against environmental changes: temperature, humidity, ultraviolet radiation, pollution, and the effects of detergents. In this study, we performed a non-invasive, preliminary evaluation of the effects of a biphasic facial skin care product containing plant oils, hyaluronic acid, glycerin, and panthenol on skin hydration levels and transepidermal water loss compared to a control group using only shea butter. The topical care product formed as a two-phase emulsion was tested. The research was carried out with the …
Extraordinary Performance of Carbon‐Coated Anatase TiO 2 as Sodium‐Ion Anode
2015
The synthesis of in situ polymer‐functionalized anatase TiO2 particles using an anchoring block copolymer with hydroxamate as coordinating species is reported, which yields nanoparticles (≈11 nm) in multigram scale. Thermal annealing converts the polymer brushes into a uniform and homogeneous carbon coating as proven by high resolution transmission electron microscopy and Raman spectroscopy. The strong impact of particle size as well as carbon coating on the electrochemical performance of anatase TiO2 is demonstrated. Downsizing the particles leads to higher reversible uptake/release of sodium cations per formula unit TiO2 (e.g., 0.72 eq. Na+ (11 nm) vs only 0.56 eq. Na+ (40 nm)) while the …
Effects of solarization and biofumigation on tomato greenhouse production in the southern coast of Sicily
2008
Fabrication and Characterization of Dye-Sensitized Solar Cells
2014
Among the next-generation solar cells, a predominant role is played by Dye sensitized solar cells (DSSC) based on ruthenium complexes as sensitizers. They take advantage of a photoelectrochemical system to transform solar radiation into electric energy. In fact, DSSCs represent a cost-effective alternative to traditional silicon-based photovoltaic devices and they do not require expensive and sophisticated apparatus for their fabrication. In this work, we have produced and tested ruthenium DSSCs. In particular, we have measured the main parameters of these cells, such as the electrical and power performances and the efficiency levels, at different irradiance levels and at different incident…
Photoelectric valuation of highly efficient Dye-Sensitized Solar Cells
2015
Nowadays, a growing demand for free and clean energy requires the study and the development of new low-cost solar photovoltaic (PV) cells. Among them, Dye Sensitized Solar Cells (DSSCs) based on ruthenium complexes as sensitizers are assuming a great importance. The DSSCs under study are composed placing in succession a transparent conductive glass on which is screen-printed a mesoporous TiO2 thin film sensitized by a ruthenium based dye (N719) , an electrolytic solution containing a redox couple (I-/I3-) and another conductive glass covered by a thin transparent catalyst platinum film. In this work, we have measured the main photoelectrochemical parameters of the above mentioned DSSCs at d…
Light Soaking measurements on Ruthenium-based Dye Sensitized Solar Cells
2016
An interesting phenomenon occurring in Dye Sensitized Solar Cells (DSSCs) when exposed to an uninterrupted period of illumination is the so-called light soaking effect, which consists in the increase of the main electrical parameters of the cell, such as the photocurrent and the efficiency. Studying such an effect has noteworthy practical implications, ranging from the optimization of the manufacturing process to stability tests of DSSCs. In this paper, we present an experimental investigation on the performance variation, due to light soaking, of Ruthenium-based DSSCs.
Shell-model computed cross sections for charged-current scattering of astrophysical neutrinos off 40Ar
2018
Charged-current (anti)neutrino-$^{40}\mathrm{Ar}$ cross sections for astrophysical neutrinos have been calculated. The initial and final nuclear states were calculated using the nuclear shell model. The folded solar-neutrino scattering cross section was found to be $1.78(23)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}42}\phantom{\rule{4pt}{0ex}}{\mathrm{cm}}^{2}$, which is higher than what the previous papers have reported. The contributions from the ${1}^{\ensuremath{-}}$ and ${2}^{\ensuremath{-}}$ multipoles were found to be significant at supernova-neutrino energies, confirming the random-phase approximation (RPA) result of a previous study. The effects of neutrino flavor conve…
Interventi pubblici di sostegno alle attività di promozione socio-culturale degli enti ecclesiastici, tra interesse pubblico e sussidiarietà orizzont…
2009
Il contributo, alla luce della sentenza del Consiglio di Stato, Sez. v, 12 giugno 2009, n. 371 affronta il tema degli Interventi pubblici di sostegno alle attività di promozione socio-culturale degli enti ecclesiastici.