1,720,989 research outputs found
Antonio Cocchi, primo antiquario della Galleria fiorentina: 1738-1758
No full textIl volume ricostruisce la storia che vide il medico Antonio Cocchi divenire il primo rsponsabile degli Uffizi dopo la caduta della dinastia medicea. Nel delicato momento di transizione politica, la cultura e la raffinata sensibilità artistica, fecero di Cocchi un protagonista assoluto del panorama intellettuale della Firenze lorenese
Gli scritti di Giuseppe Pelli Bencivenni. Anagrafe storica
No full textAffrontare nella sua totalità la ricca produzione di Pelli Bencivenni ha permesso la conoscenza del pensiero e della cultura del secondo Settecento toscano. Infatti lo storico si era occupato di molti temi afferenti non solo all’arte figurativa, ma scrisse di letteratura, filosofia, storia del territorio e demografia, giurisprudenza, economia, editoria e bibliofilia. La sua multidisciplinarietà influenzò fortemente la politica gestionale della Galleria degli Uffizi, istituzione da lui diretta nei cruciali anni 1775-1793 durante i quali si stava delinenada una nuova sensibilità per il bene culturale
Il Catalogo delle pitture 1782-1792. Gli Uffizi nella seconda metà del Settecento
No full textEsaminando il catalogo delle pitture realizzato da Pelli Bencivenni per le opere conservate agli Uffizi nel secondo Settecento, è stato possibile delineare la storia del gusto e della fruizione dell'opera d'arte nel momento in cui il museo mediceo-lorenese veniva aperto con precise normative al pubblico
La Galleria ‘rinnovata e accresciuta’: gli Uffizi nella prima epoca lorenese
No full textIl volume analizza i decenni che trascorsero dalla fine della dinastia medicea all’arrivo di Ferdinando III, anni che segnarono per la Galleria degli Uffizi, un percorso assai complesso di avvenimenti e strategie durante il quale varie forze politiche ed intellettuali riuscirono a creare un sistema istituzionale di tutela valido ancora oggi. Collezioni, nuovi allestimenti, regolamenti per il personale del museo mediceo-lorenese che si trovava ad affrontare il gran-tour con il crescente flusso di visitatori giunti da ogni parte d’Europa, furono gli ambiti ed i temi affrontati dai direttori che contraddistinsero con le loro personalità varie stagioni e un comune destino per uno dei musei più importanti dell’età moderna
Tommaso Puccini e il "nuovo ordine, e risalto maggiore" dato alla Galleria
No full textIl saggio costituisce un contributo, con molte informazioni inedite, alla gestione della Galleria degli Uffizi fra Settecento e Ottocento da parte del direttore Tommaso Puccini, protagonista, fra l'altro del primo ordinamento della quadreria della Galleria per scuole pittoriche, e delinea un profilo aggiornato di questo personaggio che innovò profondamente sia l'allestimento sia le stesse funzioni museologiche della Galleria
Ground-state factorization and correlations with broken symmetry
Full text linkWe show how the phenomenon of factorization in a quantum many-body system is of collective nature. To this aim we study the quantum discord Q in the one-dimensional XY model in a transverse field. We analyze the behavior of Q at both the critical point and at the non-critical factorizing field. The factorization is found to be governed by an exponential scaling law for Q. We also address the thermal effects fanning out from the anomalies occurring at zero temperature. Close to the quantum phase transition, Q exhibits a finite-temperature crossover with universal scaling behavior, while the factorization phenomenon results in a non-trivial pattern of correlations present at low temperature. Copyright (C) EPLA, 2011 RI Rossini, Davide/A-8156-201
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Preparation and optimization of PIT solid lipid nanoparticles via statistical factorial design.
No full textThe objective of this study was the preparation, physico-chemical characterization and statistical optimization of cationic solid lipid nanoparticles (SLN) prepared by the PIT method as potential carrier for gene therapy, emphasizing the application of factorial design in such a kind of studies. The preliminary screening from a physico-chemical point of view on three cationic lipids (CTAB, DDAB and DOTAP), selected on the basis of their different chemical structure and increasing lipophilicity, allowed us to select SLN with DOTAP, due to its higher zeta potential and smaller particle size. Afterward, a 2(2) full factorial experimental design was developed in order to study the effects of two independent variables (amount of DOTAP and concentration of lipid matrix) and their interaction on mean particle size and zeta potential values. The factorial planning was validated by ANOVA analysis; the correspondence between the predicted values of size and zeta and those measured experimentally confirmed the validity of the design and the equation applied for its resolution. The factorial design showed a significant influence of the independent variables on the selected parameters; in particular, a higher effect of DOTAP was observed on zeta potential value. Different dilutions of the optimized SLN containing 7% w/w of cutina CP and 1% w/w of DOTAP, with size and zeta potential values respectively of 462.9 nm and 50.8 mV, were in vitro examined to evaluate the possible cytotoxicity on two models of cell cultures: human prostate cancer androgen-non-responsive DU-145 cells and primary cultures of rat astrocytes
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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