1,721,019 research outputs found

    Wilson loops in the adjoint representation and multiple vacua in two-dimensional Yang-Mills theory

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    QCD(2) with fermions in the adjoint representation is invariant under SU(N)/Z(N) and thereby is endowed with a nontrivial vacuum structure (k-sectors). The static potential between adjoint charges, in the limit of infinite mass, can be therefore obtained by computing Wilson loops in the pure Yang-Mills theory with the same nontrivial structure. When the (Euclidean) space-time is compacted on a sphere S-2, Wilson loops can be exactly expressed in terms of an infinite series of topological excitations (instantons). The presence of ic-sectors modifies the energy spectrum of the theory and its instanton content. For the exact solution, in the limit in which the sphere is decompacted, a k-sector can be mimicked by the presence of k-fundamental charges at infinity, according to Witten's suggestion. However, this property does not hold before decompaction or for the genuine perturbative solution which corresponds to the zero-instanton contribution on S-2

    Introduzione alla Metodologia del processo di Nursing

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    Trattato di metodologia dell'assistenza prima pubblicazione originale italiana sul tema della metodologia razionale dell'assistenz

    Nonnos de Panopolis, Les Dionysiaques, Tome X, Chants XXX-XXXII. Texte établi et traduit par F. Vian, 1997

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    Cusset Christophe. Nonnos de Panopolis, Les Dionysiaques, Tome X, Chants XXX-XXXII. Texte établi et traduit par F. Vian, 1997. In: Revue des Études Anciennes. Tome 99, 1997, n°3-4. Mélanges dédiés à la mémoire de J. Coupry. pp. 579-580

    Nonnos De Panopolis, Les Dionysiaques, Tome VIII, Chants XX-XXIV Texte établi et annoté par N. Hopkinson et traduit par F. Vian, 1994

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    Cusset Christophe. Nonnos De Panopolis, Les Dionysiaques, Tome VIII, Chants XX-XXIV Texte établi et annoté par N. Hopkinson et traduit par F. Vian, 1994. In: Revue des Études Anciennes. Tome 101, 1999, n°1-2. pp. 216-217

    Teaching research methods and statistics in the nursing school. Second part

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    In sette scuole per infermieri del Veneto è stata realizzata una sperimentazione triennale sull'insegnamento di Metodologia della ricerca e statistica. L'obiettivo era di valutare l'efficacia di un metodo didattico siull'apprendimento degli student
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