56,986 research outputs found

    Jugend und Familie – mehr Kontinuität als Wandel?

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    Popp U, Tillmann K-J. Jugend und Familie – mehr Kontinuität als Wandel? Neue Sammlung. 1990;30(4):564-572

    Successful treatment of psoriatic onycho‐pachydermo periostitis (POPP) with adalimumab

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    Psoriatic onycho-pachydermo periostitis (POPP) is recognized as a rare subset of psoriatic arthritis, characterized by psoriatic onychodystrophy, connective tissue thickening above the distal phalanx, and a periosteal reaction. Therapy for this rare disease is based on treatments used for psoriatic arthritis, but traditional disease-modifying antirheumatic drugs, such as sulfasalazine and methotrexate, have shown inconsistent and unsatisfactory results. We report herein a successful therapeutic approach for POPP using the fully human anti-tumor necrosis factor (TNF) antibody adalimumab in a 42-year-old male patient. After 4 months of anti-TNF treatment, a remarkable normalization of the clinical appearance was achieved and magnetic resonance imaging showed complete resolution of the initial inflammatory lesions. Therefore, we consider a TNF-blocking strategy as promising for treatment of POPP

    Reform der Reform?! Schulentwicklung am Oberstufen-Kolleg

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    Huber L. Reform der Reform?! Schulentwicklung am Oberstufen-Kolleg. In: Popp U, ed. Schule forschend entwickeln : Schul- und Unterrichtsentwicklung zwischen Systemzwängen und Reformansprüchen. Festschrift für Klaus-Jürgen Tillmann zum 60. Geburtstag. Weinheim: Juventa; 2004: 131-150

    Es gibt auch Täterinnen - Zu einem bisher vernachlässigten Aspekt der schulische Gewaltdiskussion

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    Popp U, Meier U, Tillmann K-J. Es gibt auch Täterinnen - Zu einem bisher vernachlässigten Aspekt der schulische Gewaltdiskussion. Zeitschrift für Soziologie der Erziehung und Sozialisation. 2001;21(2):170-191

    Eine Frau im Krieg

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    Hagedorn U. Eine Frau im Krieg. In: Popp W, ed. Lesebuch I: Dreißigjähriger Krieg: Eine Textsammlung aus der Barockliteratur. Friedenskultur in Europa. Vol 2. Münster: LIT Verlag; 1998

    Überleben ist alles. Bertolt Brecht: Mutter Courage und ihre Kinder

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    Hagedorn U. Überleben ist alles. Bertolt Brecht: Mutter Courage und ihre Kinder. In: Popp W, ed. Lesebuch II: Dreißigjähriger Krieg. Literarische Texte von 1971 bis 1998 . Friedenskultur in Europa. Vol 3. Münster: LIT Verlag; 1999: 189-200

    Schulische Sozialisation an Reformschulen. Zur Ambivalenz pädagogischer Programmatik

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    Wischer B. Schulische Sozialisation an Reformschulen. Zur Ambivalenz pädagogischer Programmatik. In: Popp U, Reh S, eds. Schule forschend entwickeln. Schul- und Unterrichtsentwicklung zwischen Systemzwang und Reformansprüchen. Weinheim/München: Juventa; 2004: 27-38

    A Dynamic Subfilter-scale Stress Model for Large Eddy Simulations Based on Physical Flow Scales

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    We propose a new definition of the length scale in an eddy-viscosity model for large-eddy simulations (LES). This formulation extends and generalizes a previous proposal [Piomelli, Rouhi and Geurts, Proc. ETMM10, 2014], in which the LES length scale was expressed in terms of the integral length-scale of turbulence determined by the flow characteristics and explicitly decoupled from the simulation grid; this approach was named Integral Length-Scale Approximation (ILSA). As in the original ILSA, the model coefficient was determined by the user, and required to maintain a desired contribution of the unresolved, subfilter scales (SFS) to the global transport. We propose a local formulation (local ILSA) in which the model coefficient is local in space, allowing a precise control over SFS activity as a function of location. This new formulation preserves the properties of the global model; application to channel flow and backward-facing step verifies its features and accuracy

    Large-eddy simulation of a separated flow with a sub-filter scale model based on the integral length-scale

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    A new sub-filter scale model for large-eddy simulations, which uses a length-scale proportional to the integral scale of the turbulence instead of the grid resolution to parametrize the modelled stresses, will be assessed in the prediction of the flow of a boundary-layer over a rough surface, which includes separation and reattachment

    Near Wall PIV-Measurements on the Windward Slope of a Hill

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    The turbulent flow over periodic hills was measured near to the wall, using planar Particle-Image-Velocimetry (PIV) at high spatial resolution. Our focus is on the near wall turbulence structure on the windward slope of the hill. For large-eddy simulation (LES) we suspect that, if this was not predicted accurately, it affects the prediction of the velocity profiles over the hill crest which in turn will affect the recirculation length downstream of the hill. Regarding the time averaged velocities, we were able to resolve the linear viscous region of the boundary layer. The velocity distribution and also the Reynolds stress does not comply with the law of the wall as it is valid for a turbulent boundary layer at equilibrium
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