272 resultados para Actifs immatériels


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Le capital immatériel a pris une importance croissante dans de nombreuses entreprises, mais les règles comptables ne permettent généralement pas de faire figurer ses composantes dans les états financiers publiés en fin d'année. Cet article se focalise sur les conséquences de la normalisation comptable actuelle sur l'évaluation des entreprises. Il discute également du rôle des informations extra comptables sur les actifs immatériels, divulguées volontairement par les entreprises pour aider les investisseurs à évaluer les entreprises. Enfin, le rôle des analystes financiers est évoqué : leur expertise devient essentielle pour apprécier l'impact du capital immatériel sur le devenir des entreprises et, par conséquent sur leur valeur.

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Rapport de stage présenté à la Faculté des arts et sciences en vue de l'obtention du grade de Maîtrise ès sciences (M. Sc.) en criminologie (option Analyse Criminologique).

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Liposomes are vesicular lipidic systems allowing encapsulation of drugs. This article reviews the relevant issues in liposome structure (composition and size), and their influence on intravitreal pharmacokinetics. Liposome-mediated drug delivery to the posterior segment of the eye via intravitreal administration has been addressed by several authors and remains experimental. Liposomes have been used for intravitreal delivery of antibiotics, antivirals, antifungal drugs, antimetabolites, and cyclosporin. Encapsulation of these drugs within liposomes markedly increased their intravitreal half-life, and reduced their retinal toxicity. Liposomes have also shown an attractive potential for retinal gene transfer by intravitreal delivery of plasmids or oligonucleotides.

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Numerous drug delivery systems (DDSs) can be used as intraocular tools to provide a sustained and calibrated release for a specific drug. Great progress has been made on the design, biocompatibility, bioavailability, and efficacy of DDSs. Although several of them are undergoing clinical trials, a few are already on the market and could be of a routine use in clinical practice. Moreover, miniaturization of the implants makes them less and less traumatic for the eye tissues and some DDSs are now able to target certain cells or tissues specifically. An overview of ocular implants with therapeutic application potentials is provided.