Search results for "Silver"
showing 10 items of 697 documents
Sealing capacity of a photochromatic flowable composite as protective base in nonvital dental bleaching.
2006
Aim To evaluate microleakage of a flowable composite used as a protective isolating base, applied with different adhesive systems. Methodology Seventy root-filled teeth were divided into seven groups. A flowable composite base (Tetric Flow Chroma) was used with three adhesive techniques (Syntac, Excite, Excite DCS; in the three cases with and without acid etching) and in a control group without dentine conditioning or adhesive placement. A 30% hydrogen peroxide solution was applied for 24 h in the pulp chambers, followed by the placement of a dye (silver nitrate) for 4 h. Each tooth was sectioned longitudinally, and examined under 4× magnification to assess the tooth/restoration dye leaka…
Misura delle vibrazioni sul simulacro argenteo dell'Immacolata processione
2011
Electrochemical abatement of chloroethanes in water: Reduction, oxidation and combined processes
2010
An electrochemical route, based on the anodic oxidation to carbon dioxide coupled with the cathodic reduction to de-halogenated hydrocarbons, was proposed for the treatment of waters contaminated by chloroethanes. The electrochemical abatement of two model compounds, namely 1,2-dichloroethane and 1,1,2,2-tetrachloroethane, was carried out by cathodic reduction at silver, anodic oxidation at boron doped diamond (BDD) and combined processes. The anodic oxidation gives rise to a high abatement of the concentration of both these compounds and of COD. The reduction of 1,1,2,2-tetrachloroethane proceeds also with high abatement but with the formation of some halogenated intermediates and final pr…
New Microbe Killers: Self-Assembled Silver(I) Coordination Polymers Driven by a Cagelike Aminophosphine
2019
New Ag(I) coordination polymers, formulated as [Ag(µ
Le suppellettili liturgiche dell'Eparchia di Piana degli Albanesi
2007
Il saggio analizza le suppellettili liturgiche d'argento dell'Eparchia di Piana degli Albanesi esposte alla mostra "Tracce d'Oriente", per lo più realizzate da argentieri palermitani del XVIII e XIX secolo. Le opere della liturgia greco-albanese vengono messe a confronto con quelle utilizzate per le celebrazioni di rito latino. The essay analyzes the silver liturgical furnishings of the Eparchy of Piana degli Albanesi exhibited at the exhibition "Tracce d'Oriente", mostly made by silversmiths from Palermo in the 18th and 19th centuries. The works of the Greek-Albanian liturgy are compared with those used for the Latin rite celebrations.
Aproximación al arte de la platería española
2008
[EN]: This article originated in a lecture given in the Department of Art History, University of Valencia. An attempt was made to offer an overview of Spanish silverwork. For this reason the focus was placed on the state of the question in order to determine the situation of research in Spain. Special focus was given to the new lines of study being opened, which place silverwork studies at the forefront of Spanish art historical studies.
Gain, detuning, and radiation patterns of nanoparticle optical antennas
2008
International audience; For their capability to localize and redirect electromagnetic field, metal nanoparticles have been recently viewed as efficient nanoantenna operating in the optical regime. In this article, we experimentally investigated the optical responses of coupled gold antenna pairs and measured the critical parameters defining antenna characteristics: resonant frequencies and bandwidths, detuning and gains, and radiation patterns.
Her Mistress's Voice: Gynophonocentrism in Feminist Discourses
2000
I will trace the metaphors of voice in the discourses of feminisms as articulated by Judith Fetterley, Kaja Silverman, Julia Kristeva, and Hélène Cixous. I will analyze the presuppositions of their vocal or sound imagery, paying special attention to the implications of the essentialism/constructivism opposition. It is not my intention to provide a comprehensive account of voice in feminisms, nor to make sweeping generalizations on the basis of a very limited corpus. Moreover, in spite of their differences in cultural background, period, and main area of study, the four theorists to be read are, as it were, within earshot from each other, centering, whether anglo- or francophone, around the …
Determination of cyanide by a flow injection analysis-atomic absorption spectrometric method
1999
A new flow injection analysis (FIA) procedure is proposed for the indirect atomic absorption spectrometric determination of cyanide. The FIA manifold is based on the insertion of the sample into a distilled water carrier, then the sample flows through a solid-phase reactor filled with silver iodide entrapped in polymeric resin beads. The calibration graph is linear over the range 0.2-6.0 mg l-1 of cyanide (correlation coefficient 0.9974), the detection limit is 0.1 mg l-1, the sample throughput is 193 h-1 and the RSD is 0.8%. The method is simple, quick and more selective than other published FIA procedures. The reproducibility obtained by using different solid-phase reactors and solutions …
Opere d’arte francescane dall’alto Belice corleonese alla Valle del Sosio
2013
Si analizzano opere d’arte, anche inedite, legate alla committenza francescana dell’alto Belice corleonese e della Valle del Sosio pubblicando documenti emersi nel corso della ricerca We analyze works of art, also unpublished, related to the Franciscan patronage of the Upper Belice Corleonese and the Sosio Valley by publishing documents that emerged during the research.