39 research outputs found

    A Core Element of Europe

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    A coalgebraic treatment of conditional transition systems with upgrades

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    We consider conditional transition systems, that model software product lines with upgrades, in a coalgebraic setting. By using Birkhoff's duality for distributive lattices, we derive two equivalent Kleisli categories in which these coalgebras live: Kleisli categories based on the reader and on the so-called lattice monad over Poset. We study two different functors describing the branching type of the coalgebra and investigate the resulting behavioural equivalence. Furthermore we show how an existing algorithm for coalgebra minimisation can be instantiated to derive behavioural equivalences in this setting

    Frontiers of open quantum system dynamics

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    We briefly examine recent developments in the field of open quantum system theory, devoted to the introduction of a satisfactory notion of memory for a quantum dynamics. In particular, we will consider a possible formalization of the notion of non-Markovian dynamics, as well as the construction of quantum evolution equations featuring a memory kernel. Connections will be drawn to the corresponding notions in the framework of classical stochastic processes, thus pointing to the key differences between a quantum and classical formalization of the notion of memory effects.Comment: 15 pages, contribution to "Quantum Physics and Geometry", Lecture Notes of the Unione Matematica Italiana 25,E. Ballico et al. (eds.

    Data for: Physical or psychological child abuse and neglect: Experiences, attitudes, legal knowledge, and reporting behavior of pediatricians in Berlin, Germany

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    Original data in IBM® SPSS® Statistics 2

    Am deutschen Vorbild orientiert: Europäische Mitbestimmung

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    Die Arbeitnehmerbeteiligung ist in Europa aus unterschiedlichen Elementen geformt. Bei den einen gibt es mehr Streikrechte, dafür aber weniger Aufsichtsratssitze. Oder umgekehrt. Von daher ist die deutsche Mitbestimmung nicht einzigartig stark. Sie ist unser spezifisch deutscher Pfad
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