772 research outputs found

    The block plan problem. A graphtheoretic approach

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    A graphical way to solve the Boolean matrix equations AX=BAX=B and XA=BXA=B

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    Enacted experiences: Analysing Drama in Entrepreneurship Training

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    This paper identifies and interprets enacted experiences in drama workshops organized as part of an entrepreneurship training programme. We argue that drama is an effective tool in entrepreneurship training programmes offered to practicing entrepreneurs. Drama exercises can contribute to creating, reinforcing or complementing different forms of entrepreneurial experience, which are here termed enacted experience. The results are encouraging for those who advocate using drama in training programmes for entrepreneurs. Drama sessions provide powerful experiences that may otherwise be out of reach of the participant. The paper contributes to the entrepreneurship training and entrepreneurial learning literatures by showing how enacted experiences in drama workshops are a form of experience that together with mastery, vicarious and social experience (Erikson, 2003) is connected to entrepreneurship development. Methodologically the paper illustrates how visual material can be applied in research.</p

    Ratkaisuja lannankäsittelypulmiin etsitään

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    Dynamics of Spreading of Chainlike Molecules with Asymmetric Surface Interactions

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    In this work we study the spreading dynamics of tiny liquid droplets on solid surfaces in the case where the ends of the molecules feel different interactions with respect to the surface. We consider a simple model of dimers and short chainlike molecules that cannot form chemical bonds with the surface. We use constant temperature Molecular Dynamics techniques to examine in detail the microscopic structure of the time dependent precursor film. We find that in some cases it can exhibit a high degree of local order that can persist even for flexible chains. Our model also reproduces the experimentally observed early and late-time spreading regimes where the radius of the film grows proportional to the square root of time. The ratios of the associated transport coefficients are in good overall agreement with experiments. Our density profiles are also in good agreement with measurements on the spreading of molecules on hydrophobic surfaces.Comment: 12 pages, LaTeX with APS macros, 21 figures available by contacting [email protected], to appear in Phys. Rev.
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