Search results for "ENSAT"

Europe 2020: analisi multidimensionale a livello macro e micro per il confronto e il monitoraggio nel settore delle rinnovabili

Obiettivo generale del presente lavoro è proporre analisi statistiche di tipo multidimensionale finalizzate a valutare e monitorare gli effetti delle politiche Europee nel settore delle Fonti di Energia Rinnovabile (FER), con un focus specifico al monitoraggio della Europe2020 a livello regionale. La prima parte del lavoro presenta un panoramica storica dei principali atti legislativi con i quali è stata avviata concretamente la Politica Energetica sulle rinnovabili a livello Europeo. Alla luce delle informazioni così raccolte, la seconda parte della tesi ha avuto ad oggetto l’analisi dell’effetto, misurato in termini di Mega Watt installati, dei regimi di sostegno implementati da 11 Stati …

Advances towards highly active and stereoselective simple and cheap proline-based organocatalysts

2010

Ten 4-acyloxy-L-prolines were screened as catalysts at loadings of 2–0.1 mol-% for the direct asymmetric aldol reaction in water by using variable amounts of water. Among them, a new catalyst, the L-proline carrying a trans-4-(2,2-diphenylacetoxy) group, and a catalyst previously synthesized by us, the L-proline carrying a trans-4-(4-phenylbutanoyloxy) group, were found to be excellent catalysts for the aldol reaction between cyclohexanone or cyclopentanone and substituted benzaldehydes when employed in only 1 and 0.5 mol-%,respectively, at room temperature without additives. For such catalysts, high turnover numbers were obtained, which are among the highest values obtained for enamine org…

Enhanced Heterogeneous Catalytic Conversion of Furfuryl Alcohol into Butyl Levulinate

2014

We study the catalytic condensation of furfuryl alcohol with 1-butanol to butyl levulinate. A screening of several commercial and as-synthesized solid acid catalysts shows that propylsulfonic acid-functionalized mesoporous silica outperforms the state-of-the-art phosphotungstate acid catalysts. The catalyst is prepared via template-assisted sol-gel polycondensation of TEOS and MPTMS. It gives 96 % yield (and 100 % selectivity) of butyl levulinate in 4h at 110 °C. Reaction profiles before and after a hot filtration test confirm that the active catalytic species do not leach into the solution. The catalyst synthesis, characterization, and mode of operation are presented and discussed. Sour ca…

On the effect of the nature of counterions on the self-assembly of polyoxyethylene alkyl ether carboxylic acids

2020

In this contribution, we investigate the effect of the type of counterion on the properties of dilute solutions of polyoxyethylene alkyl ether carboxylic acids. Two different surfactants, presenting an oleic acid alkyl chain and on-average five and nine ethylene oxide units, and terminated by a weakly anionic carboxymethyl group were studied. The surfactants were gradually ionized with sodium hydroxide, arginine, and choline hydroxide. The solutions properties were probed by light scattering, electrophoretic mobility, density and sound velocity measurements, as well as by small-angle neutron scattering. To our initial surprise, no specific effect arising from the nature of the counterion co…

On the Fast and Rigorous Analysis of Compensated Waveguide Junctions Using Off-Centered Partial-Height Metallic Posts

2007

In this paper, we present an efficient and rigorous method, based on the 3-D boundary integral-resonant-mode expansion technique, for the analysis of multiport rectangular waveguide junctions compensated with partial-height cylindrical metallic posts. The electrical performance of a great variety of commonly used wideband microwave circuits has been improved drastically thanks to the introduction of a new design parameter, i.e., the relative position of the metallic post in the structure. To the authors' knowledge, this parameter has not been taken into account in previous studies concerning compensated junctions using partial-height metallic posts. The developed tool has been successfully …

Systematic review of the evidence of interoceptive awareness in performers

2016

Ismael Pedraza, 2016. Systematic review of the evidence of interoceptive awareness in performers. Master s thesis in Sport and Exercise Psychology. Department of Sport Sciences. University of Jyväskylä. Pp. 53. Interoception is the conscious awareness of internal sensations coming from autonomic responses of the body including inputs such as visceral sensations, heart rate, sensations of tight muscles, etc. Those sensations are experienced due to the autonomic nervous system that is in charge of controlling and regulating bodily functions and cannot be manipulated intentionally. Previous research on interoception in performers has shown that a relationship exists between our inner bodily se…

Reporting in Conflict Zones in Pakistan: Risks and Challenges for Fixers

2020

As a backbone of reporting in war and conflicts, fixers offer essential assistance to the foreign correspondent in conflict zones, also in Pakistan. With valuable local knowledge and contacts, fixers can arrange travel to secure entry of foreign correspondents into conflict zones in addition to securing interviews with otherwise unattainable figures, while offering reliable translation services. Pakistani media, despite being one of the largest and most developed in South Asia, remains under the strict control of powerful military establishment and government, while seeming to mirror the overarching government sentiment with a distinct lack of research-based news. Challenging this state of …

Freeze-out radii extracted from three-pion cumulants in pp, p–Pb and Pb–Pb collisions at the LHC

2014

In high-energy collisions, the spatio-temporal size of the particle production region can be measured using the Bose-Einstein correlations of identical bosons at low relative momentum. The source radii are typically extracted using two-pion correlations, and characterize the system at the last stage of interaction, called kinetic freeze-out. In low-multiplicity collisions, unlike in high-multiplicity collisions, two-pion correlations are substantially altered by background correlations, e.g. mini-jets. Such correlations can be suppressed using three-pion cumulant correlations. We present the first measurements of the size of the system at freeze-out extracted from three-pion cumulant correl…

Effects of temperature and feeding regime on compensatory growth of rainbow trout, Oncorhynchus mykiss

2006

Les débats devant la commission d'esclavage

2010

On March 4, 1848, thanks to the decisive impetus given by Victor Schoelcher, the principle of the abolition of slavery was proclaimed by decree and a « Commission for the preparation of an act of immediate emancipation in all the colonies of the Republic » was established. Like the commission de Broglie under the July Monarchy, the commission, chaired by Schoelcher, provided a huge work of documentation, information and reflection on the settlements, studying also the organization of the English colonies. However, unlike the previous one, the commission of 1848 required the immediate abolition of slavery (Decree of April 27, 1848), without waiting for the election of the National Assembly, …