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Kölner UniversitätsPublikationsServer
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  • Hopf's Type Estimates near Singular Boundary Points

    Beygmohammadi, Maryam (2015)
    Subject of this thesis is the behaviour of the solution of the Laplace-Poisson equation under zero Dirichlet boundary condition near non-regular boundary points. The first part gives an example of a domain where Hopf's Boundary Point Lemma holds true pointwise but not uniformly, therefore the solution operator is not strongly positive. A second result addresses a sharp replacement of Hopf's estimate near the boundary whenever such boundary has a conical point. As a consequence one is able to ...

    Zur Entstehung rhythmisch geschichteter Beckensedimente des Illergletschergebietes (Südwest Bayern)

    Link, Arne (2004)
    In einem klassischen Zungenbecken des süddeutschen Alpenvorlandes (Illergletschergebiet, Südwest Bayern) wurde die Verbreitung glazilimnischer Beckensedimente aufgenommen und unter Auswertung von Bohrungen und Aufschlüssen ein dreidimensionales Modell zur räumlichen Lagerung der Beckensedimente erstellt (Kap. 3). Mit Hilfe sedimentologischer, mineralogischer und geochemischer Untersuchungsmethoden konnten an acht Kernbohrungen und drei Aufschlüssen Informationen über Aufbau und Genese der gla...

    Motility and Relational Mobility of the Baka in North-Eastern Gabon

    Weig, Doerte (2013)
    This thesis offers a first scientific portrait of the Baka in North-Eastern Gabon, a group of post-foragers living along the River Ivindo, and the way they practice and conceptualise mobility. The inquiry encompasses the long-term historical and the daily or short-term current mobility of this group, elicited through life histories and participant observation. The central premise of this work is that mobility is relational. Relational refers to interaction of movement and fixity, of position ...

    Untersuchung der TALE-Homöodomänen-Proteine in Arabidopsis thaliana. Identifizierung und Charakterisierung von Komponenten des TALE-Interaktions-Netzwerkes

    Hackbusch, Jana (2004)
    Die Homöodomänen-Proteine stellen eine Gruppe von Transkriptionsfaktoren dar, die eine zentrale Rolle in den Entwicklungs-Prozessen aller mehrzelliger Organismen spielt. Die TALE-Superfamilie der Homöodomänen-Proteine wird in Pflanzen von den Familien der BEL- und der KNOX-Gene kodiert. Über die Funktion der pflanzlichen TALE-Proteine ist bisher wenig bekannt. In dieser Arbeit wurde in dem Modellorganismus Arabidopsis thaliana die TALE-Superfamilie als Ganzes betrachtet und mittels genetische...

    The Institutionalisation of Infectious Disease Control in the European Union : The Effects of the Securitisation of BSE/TSEs and SARS

    Reiners, Wulf Hannes (2015)
    This dissertation examines the evolution of infectious disease control in the European Union (EU). The overarching objective of the research is to analyse policy and polity developments at the EU level primarily in the fields of public health and food safety in order to identify key developments between 1993 and 2014 and to investigate the conditions under which institutionalisation took place. The study approaches the field from a security perspective which is developed as an original advanc...
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