1,238 research outputs found
Value allocations in economies with coalition structure
We embody a notion of stability for coalition structures by Hart and Kurz (1983) into the framework of general equilibrium, by generalizing the classical value allocation notion (Shapley, 1969) to situations where: (a) agents organize themselves voluntarily into coalition structures (b) the process of coalition formation is treated as endogenous. To this end we introduce the definition of stable coalition structure value allocation and provide, under standard hypotheses, a preliminary existence result for the three player case in an exchange economy.
Exploiting Linearity in Sharing Analysis of Object-oriented Programs
AbstractWe propose a new sharing analysis of object-oriented programs based on abstract interpretation. Two variables share when they are bound to data structures which overlap. We show that sharing analysis can greatly benefit from linearity analysis. We propose a combined domain including aliasing, linearity and sharing information. We use a graph-based representation of aliasing information which naturally encodes sharing and linearity information, and define all the necessary operators for the analysis of a Java-like language
Festival Internazionale Del Cinema Sordo. Un festival per tutt*
Starting from a definition of deaf cinema as an artistic product created by and with deaf people, Francesca Di Meo (Istituto Statale Sordi, Rome) describes the fascinating reality of Cinedeaf Festival, the biggest archive of deaf cinema in Europe. All films are subtitled in Italian and English and all live events are translated into Italian Sign Language, International Sign Language and subtitled live. Di Meo also highlights the socio-cultural importance of this festival in terms of audience development and public engagement.
Design of hybrid gels based on gellan-cholesterol derivative and P90G liposomes for drug depot applications
Gels are extensively studied in the drug delivery field because of their potential benefits in therapeutics. Depot gel systems fall in this area, and the interest in their development has been focused on long-lasting, biocompatible, and resorbable delivery devices. The present work describes a new class of hybrid gels that stem from the interaction between liposomes based on P90G phospholipid and the cholesterol derivative of the polysaccharide gellan. The mechanical properties of these gels and the delivery profiles of the anti-inflammatory model drug diclofenac embedded in such systems confirmed the suitability of these hybrid gels as a good candidate for drug
depot applications
A competitive reactivity study on the oxidative cyclization of thiosemicarbazones into 1,3,4-thiadiazolidines
Abstract
In order to obtain useful insights on the mechanism of formation of 2(3H)-imino-1,3,4-thiadiazoles by
oxidative cyclization of aldehyde thiosemicarbazones with Cu(II) or Fe(III) salts, a competitive reactivity study
was performed on a suitable set of diversely substituted substrates, by means of HPLC techniques. This
approach enabled to exploit Hammett\u2019s equation without performing otherwise difficult-to-run kinetic
experiments. The results presented herein support the hypothesis that the formation of the thiadiazole ring is
induced by the attack of the oxidizing Lewis acid metal cation onto the imine-like nitrogen atom of the
thiosemicarbazone substrate. Beyond mechanistic interpretation, the paper particularly focuses onto the
methodological issues implied
Thermodynamics of binding between alfa- and beta-cyclodextrins and some p-nitro-aniline derivatives: reconsidering the enthalpy-entropy compensation effect
Polarimetry as a useful tool for the determination of binding constants between cyclodextrins and organic guest molecules
Binding equilibria between beta-cyclodextrin and p-nitro-aniline derivatives: the first systematic study in mixed water-methanol solvent systems.
Complexation equilibria, in mixed water-methanol solvent media, between native β-cyclodextrin and a set of suitably selected p-nitro-aniline derivatives were studied by means of polarimetry. The effects exerted by the organic co-solvent on the conditional inclusion free energies ΔGcond 0 and the differential molar optical rotations ΔΘ were thoroughly analyzed under the perspective of the enthalpy-entropy compensation effect. Experimental data suggest an intimate participation ('dynamic co-inclusion') of solvent molecules in the formation and in the conformational dynamics of the host-guest inclusion complex
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