La passione politica. Perch\ue9 \ue8 estinta, come pu\uf2 risorgere?

La passione come tema centrale, oggi rimosso, di tutta la storia delle dottrine politiche antiche e moderne. Il Novecento come apogeo delle passioni politiche alimentate dalle ideologie classiste e interclassiste incarnate nelle figure dei Partiti- Stato. L'apatia politica contemporanea come effetto della riduzione della democrazia ad un'unica logica sistematica: quella predefinita attorno al rito elettorale

Paul Ricoeur in dialogo

Numerosi studiosi dell'area europea si incontrano per mettersi idealmente "in dialogo" con il Maestro Paul Ricoeur su argomenti particolarmente pregnanti del nostro tempo, concernenti l'etica dei rapporti interpersonali all'interno delle società complesse; la giustizia e la discussione attorno ai suoi fondamenti e alle sue procedure; la convinzione delle scelte religiose che si incontrano nei contesti multiculturali odierni. Ogni parte del testo inizia con un saggio di Paul Ricoeu

Destini del sacro. Discorso religioso e semiotica della cultura

Il tema del sacro e del discorso religioso viene affrontanto attraverso diverse teorie, metodologie ed epistemologie. Il volume confronta e raccoglie studi biblici, sul discorso religioso, sulla semiotica del sacro, la sociologia dei consumi, la pittura sacra e contemporanea, la semiotica della fotografia, la semiotica del cinema e della televisione, l'etnosemiotica

Diclofenac-β-cyclodextrin binary systems: Physicochemical characterization and in vitro dissolution and diffusion studies

The aim of this work was to study the influence of β-cyclodextrin (β-CD) on the biopharmaceutic properties of diclofenac (DCF). To this purpose the physicochemical characterization of diclofenac-β-cyclodextrin binary systems was performed both in solution and solid state. Solid phase characterization was performed using differential scanning calorimetry (DSC), powder x-ray diffractometry (XRD), and Fourier transform infrared spectroscopy (FTIR). Phase solubility analyses, and in vitro permeation experiments through a synthetic membrane were performed in solution. Moreover, DCF/β-CD interactions were studied in DMSO by1H nuclear magnetic resonance (NMR) spectroscopy. The effects of different preparation methods and drug-to-β-CD molar ratios were also evaluated. Phase solubility studies revealed 1∶1 M complexation of DCF when the freeze-drying method was used for the preparation of the binary system. The true inclusion for the freeze-dried binary system was confirmed by1H NMR spectroscopy, DSC, powder XRD, and IR studies. The dissolution study revealed that the drug dissolution rate was improved by the presence of CDs and the highest and promptest release was obtained with the freeze-dried binary system. Diffusion experiments through a silicone membrane showed that DCF diffusion was higher from the saturated drug solution (control) than the freeze-dried inclusion complexes, prepared using different DCF-β-CD molar ratios. However, the presence of the inclusion complex was able to stabilize the system giving rise to a more regular diffusion profile