Search results for "SAC"
showing 10 items of 3337 documents
The choice of master international franchising – A modified transaction cost model
2022
Abstract This study develops and tests a novel transaction cost model of master international franchising. Based on data from international franchise firms headquartered in six countries, we show that master international franchising is the franchisor’s preferred governance mode under the following conditions: large bilateral franchisor’s and franchisees’ transaction-specific investments, high institutional uncertainty and high behavioral uncertainty. Our model extends the literature by presenting a modified transaction cost model of master international franchising that investigates the bonding effect of bilateral transaction-specific investments and environmental uncertainty as determinan…
The Representation of Shopping in Children’s Books
2016
Purpose The purpose of this paper is to identify the representations, figures and processes of shopping/commerce in books published in France that are aimed at three to seven-year-olds. Design/methodology/approach A semiotic analysis of nearly 50 books published over the past 60 years. Findings These books reveal a broad diversity in the images of shops given to children (ranging from the traditional shop, a source of pleasure and creator of social ties, to the hypermarket/megastore, a symbol of stress and overconsumption) and the wealth of information that is given to children to help them assimilate the process of a shopping transaction. Originality/value The originality and richness of …
Le metamorfosi del corale "Vom Himmel hoch da komm ich her" fra Lutero, Bach e Stravinsky
2020
Il corale matalizio "Vom Himmel hoch da komm ich her" (Dall'alto dei cieli io giungo) è stato realizzato da Martin Lutero sulla base della melodia popolare "Ich komm aus fremden Landen her" e fu pubblicato per la prima volta a Wittenberg nel 1535. Assai diffuso in tutta l'area culturale tedesca, questo brano è stato ripreso, tra gli altri, anche da J.S. Bach, sia nel "Weinachts-Oratorium" BWV 248 che nelle "Canonische Veraenderungen" per organo BWV 796 e 796a. Il saggio ricostruisce il contesto in cui vide la luce la versione originale del canto natalizio e si sofferma sull'interesse di Bach per la numerologia e sulle "citazioni nascoste" in molte sue opere, incluse le "Veraenderungen" sul …
Musica e architettura. Le opere di Igor Stravinsky per la basilica di San Marco a Venezia
2019
Il 13 settembre 1956, Stravinsky diresse nella basilica di San Marco a Venezia la prima esecuzione del "Canticum Sacrum" (1955), insieme con le "Variazioni-corali sulla canto natalizio Vom Himmel hoch…" (1955-56). Il "Canticum" era stato realizzato su commissione del Festival delle Biennale e costituisce un esempio dell'approccio del compositore alla tecnica dodecafonica. Le "Variazioni-corali" presentano quasi il medesimo organico del "Canticum" e sono invece da considerarsi come una sorta di ripensamento creativo delle "Variazioni canoniche" BWV 796-796a di Johann Sebastian Bach. September 13th 1956, Stravinsky conducted at the basilica of St. Mark in Venice the first performance of the "…
Le stragi, Cosa nostra e la forbice sociale
2020
Oltre che per la sua soggettività politica, Cosa Nostra si è distinta nel tempo per la sua complessa pervasività sistemica, per la sua capacità di sfruttare le “intersezioni” tra dimensioni criminali e economia legale e per la duttile capacità di adattamento ai “vincoli di contesto” che, via via, le si sono presentati. Per comprenderne, quindi, l’attuale configurazione, occorre partire da tale complessità, senza appiattirne la storia in una “notte nera” dove “tutte le mafie sono uguali”, ma valorizzando le sue dimensioni identitarie, radicate su fatti, eventi e intersezioni assolutamente unici. Limitando l’attenzione all’ultimo trentennio, punto di osservazione privilegiato sono le stragi d…
"VIVI" Opere di Massimo Palumbo
2013
In occasione della Mostra, a cura di Cristina Costanzo, “VIVI” Opere di Massimo Palumbo - promossa dalla Presidenza del Consiglio Comunale di Palermo e dall'Assessorato alla Cultura di Palermo e ospitata presso i Cantieri Culturali alla Zisa di Palermo - viene presentato l’omonimo catalogo, pubblicato da Palladino Editore. Il catalogo “VIVI” Opere di Massimo Palumbo si offre come guida all’esposizione e utile strumento scientifico per la lettura del lavoro dell’artista. Il catalogo, a cura di Cristina Costanzo, si avvale dei contributi critici di Marcella Cossu, Cristina Costanzo e Massimo Palumbo. Massimo Palumbo presenta nella sede dei Cantieri Culturali alla Zisa, oggi al centro di un am…
Tailoring the stealth properties of biocompatible polysaccharide nanocontainers.
2014
Fundamental development of a biocompatible and degradable nanocarrier platform based on hydroxyethyl starch (HES) is reported. HES is a derivative of starch and possesses both high biocompatibility and improved stability against enzymatic degradation; it is used to prepare nanocapsules via the polyaddition reaction at the interface of water nanodroplets dispersed in an organic miniemulsion. The synthesized hollow nanocapsules can be loaded with hydrophilic guests in its aqueous core, tuned in size, chemically functionalized in various pathways, and show high shelf life stability. The surface of the HES nanocapsules is further functionalized with poly(ethylene glycol) via different chemistri…
Proteins in amorphous saccharide matrices: Structural and dynamical insights on bioprotection
2013
Bioprotection by sugars, and in particular trehalose peculiarity, is a relevant topic due to the implications in several fields. The underlying mechanisms are not yet clearly elucidated, and remain the focus of current investigations. Here we revisit data obtained at our lab on binary sugar/water and ternary protein/sugar/water systems, in wide ranges of water content and temperature, in the light of the current literature. The data here discussed come from complementary techniques (Infrared Spectroscopy, Molecular Dynamics simulations, Small Angle X-ray Scattering and Calorimetry), which provided a consistent description of the bioprotection by sugars from the atomistic to the macroscopic …
Impact of excipient choice on the aerodynamic performance of inhalable spray-freeze-dried powders
2020
Abstract Spray-freeze-drying (SFD) is a process in which a solution is dispersed into a freezing medium and dried by sublimation, resulting in lyophilized powders with spherical particles. This study aims at screening and evaluating the impact of the excipient choice and spray solution characteristics in SFD on the physico-chemical characteristics of lyospheres and rate their suitability for producing pulmonary applicable powders using a novel SFD method. A monodisperse droplet-stream was injected into a vortex of cold gas for the production of inhalable, uniform spherical lyophilisates with a narrow particle size distribution. Model solutions containing graded contents (0.3%, 1.0%, and 3.0…
Jet-vortex spray freeze drying for the production of inhalable lyophilisate powders
2016
Abstract Spray-freeze-dried powders were suggested for nasal, epidermal (needle-free injection) or pulmonary application of proteins, peptides or nucleic acids. In spray-freeze-drying processes an aqueous solution is atomized into a refrigerant medium and subsequently dried by sublimation. Droplet-stream generators produce a fast stream of monodisperse droplets, where droplets are subject to collisions and therefore the initial monodispersity is lost and droplets increase in diameter, which reduces their suitability for pulmonary application. In jet-vortex-freezing, a droplet-stream is injected into a vortex of cold process gas to prevent droplet collisions. Both the injection position of t…