Search results for "Llar"

VERIFICA DI IPOTESI E PROCEDURE NELLA STIMA EMPIRICA DELLA PERDITA DI SUOLO PARCELLARE IN UN AMBIENTE MEDITERRANEO

2015

La stima dell’erosione idrica mediante approcci empirici ha interesse sia scientifico sia applicativo. Nella presente indagine è stata condotta una verifica di ipotesi e procedure adottate nella USLE e in modelli basati sullo schema USLE per la stima della perdita di suolo da parcelle di suolo nudo nell’area sperimentale di Sparacia, in Sicilia. La perdita di suolo per unità di superficie del singolo evento erosivo, Ae, non è significativamente dipendente dalla lunghezza parcellare, λ, in quanto all’aumentare di λ si riduce il deflusso ma cresce la concentrazione dei sedimenti. I valori di Ae sono crescenti con la pendenza parcellare, s, in quanto il coefficiente di deflusso non varia appre…

Rabbit cerebellar event-related potentials during classical nictitating membrane conditioning

2004

Coppie miste: le differenze culturali e le reti di sostegno nel processo di acculturazione

2013

Il volume raccoglie le riflessioni più interessanti emerse durante gli incontri seminariali e i workshop della sesta edizione della Summer School “Migranti, Diritti Umani e Democrazia”, svoltasi a Salina (Isole Eolie), dal 17 al 22 settembre 2012. Si discute la complessa questione delle donne migranti, approfondendo vari temi che le riguardano. In particolare, gli Autori hanno spaziato dall’autorganizzazione in altri contesti di vita all’identità di genere e solidarietà tra le donne immigrate, dal senso di comunità, rete sociale e sostegno sociale alla diaspora e mobilities, dalla gestione della salute, della maternità, delle strategie di cura dei figli alla comunicazione e mediazione cultu…

L'intermédiaire Vollard

2009

Vollard l'intermédiaire

2011

Enhancement of structural, functional and antioxidant properties of fish gelatin films using Maillard reactions

2018

International audience; This study investigates the effect of Maillard reactions (MR) on the physico-chemical and biological properties of fish gelatin based edible films. Glucose was incorporated in gelatin film forming solutions at different glucose/lysine molar ratios: 0.5/1.0, 1.0/1.0 and 5.0/1.0. The MR was then induced by heating films at 90 °C for 24 h in dry conditions. Color changes and browning index measurements were used to pursue the MR kinetic. Results showed that the development of MR products was dependent on the glucose content and on the reaction time. Mechanical and thermal properties of treated films displayed an increase in tensile strength, elongation at break and glas…

Characterization of hydroxyaromatic compounds in vegetable oils by capillary electrophoresis with direct injection in an oil-miscible KOH/propanol/me…

2005

The separation of hydroxyaromatic compounds in vegetable oils, including synthetic antioxidants (3-tert-butyl-4-hydroxyanisol and 2,6-di-tert-butyl-4-hydroxytoluene), E-vitamers and other natural oil components, by nonaqueous capillary electrophoresis in an oil-miscible background electrolyte (BGE) was investigated. The BGE contained 40 mM KOH in a methanol/1-propanol (PrOH) mixture (15:85 v/v). The oil samples were 1:1 diluted with PrOH and directly injected in the capillary. Under negative polarity (cathode at the injection end), the anionic solutes moved faster than the electroosmotic flow, being well-resolved among them and from the triacylglycerols. Using virgin palm, extra virgin oliv…

Study of lecithin reverse micelles by FT-IR spectroscopy

2007

FT-IR spectra of water/lecithin/deuterated cyclohexane microemulsions as a function of water/lecithin molar ratio R (R=[water]/[lecithin]) at various lecithin volume fractions (φ) have been recorded. After elimination of the spectral contributions due to the deuterated cyclohexane and normalization, the band parameters of the CO and PO4 vibrational modes due to lecithin have been found dependent only upon R. This behaviour has been interpreted in terms of a progressive structural modification of the water/lecithin interface superimposed to the progressive hydration of CO and PO4 groups. Moreover, no correlation between the CO and PO4 band parameters and the formation of gel-like micellar so…

Small-angle neutron scattering from lecithin reverse micelles

1996

Abstract We report new results of small-angle neutron scattering from cyclohexane- d 12 /lecithin/water micellar solutions, performed as a function of the water content, w 0 , the temperature, T and the dispersed-phase volume fraction, ф. The data from dilute samples can be interpreted in terms of the existence of giant cylindrical reverse micelles, in good agreement with the current idea of an unlimited micellar growth with ф. In contrast, the appearance of a sharp interference maximum at high concentrations ( ф > 0.15 ) suggests that the current hypothesis of a gel structure interpreted as a random network of entangled micelles can be assumed to be incorrect, and that there must be some c…

THE US DOLLAR, THE EURO, THE JAPANESE YEN AND THE CHINESE YUAN IN THE FOREIGN EXCHANGE MARKET – A COMPARATIVE ANALYSIS

2013

This paper exposes an evaluation of the bilateral exchange rate developments of the US dollar against the euro, the Japanese yen and the Chinese yuan/renminbi and surveys the nominal and real effective exchange rates trends of such currencies over the period 1994-2012. It also briefly reviews the currency composition of the foreign exchange market turnover, pointing out several important features of the evolution of this market after the introduction of the euro.