35 research outputs found

    General Mean Reflected BSDEs

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    The present paper is devoted to the study of backward stochastic differential equations with mean reflection formulated by Briand et al. [7]. We investigate the solvability of a generalized mean reflected BSDE, whose driver also depends on the distribution of the solution term YY. Using a fixed-point argument, BMO martingale theory and the θ\theta-method, we establish the existence and uniqueness result for such BSDEs in several typical situations, including the case where the driver is quadratic with bounded or unbounded terminal condition.Comment: 20 page

    Mitochondrial physiology

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    As the knowledge base and importance of mitochondrial physiology to evolution, health and disease expands, the necessity for harmonizing the terminology concerning mitochondrial respiratory states and rates has become increasingly apparent. The chemiosmotic theory establishes the mechanism of energy transformation and coupling in oxidative phosphorylation. The unifying concept of the protonmotive force provides the framework for developing a consistent theoretical foundation of mitochondrial physiology and bioenergetics. We follow the latest SI guidelines and those of the International Union of Pure and Applied Chemistry (IUPAC) on terminology in physical chemistry, extended by considerations of open systems and thermodynamics of irreversible processes. The concept-driven constructive terminology incorporates the meaning of each quantity and aligns concepts and symbols with the nomenclature of classical bioenergetics. We endeavour to provide a balanced view of mitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes. Uniform standards for evaluation of respiratory states and rates will ultimately contribute to reproducibility between laboratories and thus support the development of data repositories of mitochondrial respiratory function in species, tissues, and cells. Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery

    Mitochondrial physiology

    Get PDF
    As the knowledge base and importance of mitochondrial physiology to evolution, health and disease expands, the necessity for harmonizing the terminology concerning mitochondrial respiratory states and rates has become increasingly apparent. The chemiosmotic theory establishes the mechanism of energy transformation and coupling in oxidative phosphorylation. The unifying concept of the protonmotive force provides the framework for developing a consistent theoretical foundation of mitochondrial physiology and bioenergetics. We follow the latest SI guidelines and those of the International Union of Pure and Applied Chemistry (IUPAC) on terminology in physical chemistry, extended by considerations of open systems and thermodynamics of irreversible processes. The concept-driven constructive terminology incorporates the meaning of each quantity and aligns concepts and symbols with the nomenclature of classical bioenergetics. We endeavour to provide a balanced view of mitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes. Uniform standards for evaluation of respiratory states and rates will ultimately contribute to reproducibility between laboratories and thus support the development of data repositories of mitochondrial respiratory function in species, tissues, and cells. Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery

    L’assurance des pertes d’exploitation, cette méconnue

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    Les assurances des biens des entreprises ne couvrent que les dommages directement subis par celles-ci. Les pertes indirectes qui résultent de dommages directs ne sont pas assurées. Elles font l’objet, suivant une appréciation distincte du risque, d’une protection spéciale : l’assurance des pertes d’exploitation. Dans la première partie de cet article, l’auteur décrit la nature, l’étendue et le fonctionnement de cette assurance ainsi que les principaux formulaires disponibles, notamment celui d’indemniser l’assuré de ses pertes d’exploitation pendant la période de temps nécessaire pour réparer ou remplacer les biens détruits ou endommagés ou encore pendant la période durant laquelle les résultats de l’entreprise, après avoir repris ses opérations, sont affectés par les effets du sinistre. Dans la deuxième partie, il décrit l’assurance des pertes d’exploitation subies par une entreprise en raison d’un sinistre subi par une autre entreprise indépendante (par exemple, un fournisseur ou un client important).Commercial property forms do not provide coverage for the indirect loss resulting from the direct damage to the insured property. Such protection must be obtained, subject to a distinct premium, under a business income insurance. In the first part, the author describes the purpose of business income insurance which is to indemnify the insured business firm for loss of income during the period required to restore property damaged by an insured peril or to during the period required to recover its original business profits if no loss had occurred. He identifies the forms that are available, how those forms apply and what are optional coverage provisions. In the second part, he examines contingent business income insurance, which provides protection to a firm against business interruption and extra expense losses resulting from damage caused by an insured peril to property not owned or operated by the insured firm (for example, important supplier or client)

    Conditional Backward Propagation of Chaos

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    In this paper, we first investigate the well-posedness of a backward stochastic differential equation where the driver depends on the law of the solution conditioned to a common noise. Under standard assumptions, we show that existence and uniqueness, as well as integrability results, still hold. We also study the associated interacting particles system, for which we prove propagation of chaos, with quantitative estimates on the rate of convergence in Wasserstein distance

    Conditional Backward Propagation of Chaos

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    In this paper, we first investigate the well-posedness of a backward stochastic differential equation where the driver depends on the law of the solution conditioned to a common noise. Under standard assumptions, we show that existence and uniqueness, as well as integrability results, still hold. We also study the associated interacting particles system, for which we prove propagation of chaos, with quantitative estimates on the rate of convergence in Wasserstein distance

    Faits d’actualité

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    Conditional Backward Propagation of Chaos

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    In this paper, we first investigate the well-posedness of a backward stochastic differential equation where the driver depends on the law of the solution conditioned to a common noise. Under standard assumptions, we show that existence and uniqueness, as well as integrability results, still hold. We also study the associated interacting particles system, for which we prove propagation of chaos, with quantitative estimates on the rate of convergence in Wasserstein distance

    Un mai 2008 « horribilis » en Asie : d’une tragédie à l’autre

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