@phdthesis{Creuzberger2008,
  author    = {Creuzberger, Stefan},
  title     = {"Kampf f{\"u}r die Einheit" : das gesamtdeutsche Ministerium und die politische Kultur des Kalten Krieges 1949- 1969},
  series = {Schriften des Bundesarchivs},
  volume    = {69},
  journal   = {Schriften des Bundesarchivs},
  publisher = {Droste},
  address   = {D{\"u}sseldorf},
  isbn      = {978-3-7700-1625-9},
  pages     = {604 S.},
  year      = {2008},
  language  = {de}
}
@phdthesis{Fischer2008,
  author    = {Fischer, Anna},
  title     = {"Reactive hard templating" : from carbon nitrides to metal nitrides},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-19777},
  school      = {Universit{\"a}t Potsdam},
  year      = {2008},
  abstract  = {Nanostructured inorganic materials are routinely synthesized by the use of templates. Depending on the synthesis conditions of the product material, either "soft" or "hard" templates can be applied. For sol-gel processes, usually "soft" templating techniques are employed, while "hard" templates are used for high temperature synthesis pathways. In classical templating approaches, the template has the unique role of structure directing agent, in the sense that it is not participating to the chemical formation of the resulting material. This work investigates a new templating pathway to nanostructured materials, where the template is also a reagent in the formation of the final material. This concept is described as "reactive templating" and opens a synthetic path toward materials which cannot be synthesised on a nanometre scale by classical templating approaches. Metal nitrides are such kind of materials. They are usually produced by the conversion of metals or metal oxides in ammonia flow at high temperature (T > 1000°C), which make the application of classical templating techniques difficult. Graphitic carbon nitride, g-C3N4, despite its fundamental and theoretical importance, is probably one of the most promising materials to complement carbon in material science and many efforts are put in the synthesis of this material. A simple polyaddition/elimination reaction path at high temperature (T = 550°C) allows the polymerisation of cyanamide toward graphitic carbon nitride solids. By hard templating, using nanostructured silica or aluminium oxide as nanotemplates, a variety of nanostructured graphitic carbon nitrides such as nanorods, nanotubes, meso- and macroporous powders could be obtained by nanocasting or nanocoating. Due to the special semi-conducting properties of the graphitic carbon nitride matrix, the nanostructured graphitic carbon nitrides show unexpected catalytic activity for the activation of benzene in Friedel-Crafts type reactions, making this material an interesting metal free catalyst. Furthermore, due to the chemical composition of g-C3N4 and the fact that it is totally decomposed at temperatures between 600°C and 800°C even under inert atmosphere, g-C3N4 was shown to be a good nitrogen donor for the synthesis of early transition metal nitrides at high temperatures. Thus using the nanostructured carbon nitrides as "reactive templates" or "nanoreactors", various metal nitride nanostructures, such as nanoparticles and porous frameworks could be obtained at high temperature. In this approach the carbon nitride nanostructure played both the role of the nitrogen source and of the exotemplate, imprinting its size and shape to the resulting metal nitride nanostructure.},
  language  = {en}
}
@phdthesis{Zeiske2008,
  author    = {Zeiske, Anja},
  title     = {"Sexualit{\"a}t im angehenden Erwachsenenalter" : die sexuelle Handlungsf{\"a}higkeit junger Frauen und M{\"a}nner},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-52346},
  school      = {Universit{\"a}t Potsdam},
  year      = {2008},
  abstract  = {In dieser Arbeit wurden Zusammenh{\"a}nge zwischen den sexuellen Erfahrungen junger Frauen und M{\"a}nner, ihren Pers{\"o}nlichkeitseigenschaften und ihren sexualmoralischen Einstellungen auf der einen Seite und der Einsch{\"a}tzung ihrer sexuellen Handlungsf{\"a}higkeit auf der anderen Seite untersucht. Die Grundlage f{\"u}r das Modell der sexuellen Handlungsf{\"a}higkeit bildeten die Vorstellungen der Arbeitsgruppe um Matthias Grundmann (Grundmann et al. 2006) sowie von Emirbayer und Mische (1998). Das in dieser Arbeit entwickelte Modell zur sexuellen Handlungsf{\"a}higkeit ist ein multidimensionales Konstrukt, das sich aus den Komponenten „sexuelle Kommunikation", „sexuelle Zufriedenheit", „sexuelle Reziprozit{\"a}t" sowie „sexuelle Eigenverantwortung" zusammensetzt. „Sexuelle Kommunikation" beinhaltet die F{\"a}higkeit, sexuelle W{\"u}nsche zum Ausdruck bringen zu k{\"o}nnen. „Sexuelle Zufriedenheit" beschreibt den Grad der Zufriedenheit mit dem eigenen Sexualleben. „Sexuelle Reziprozit{\"a}t" verweist auf die F{\"a}higkeit, sexuelle Aufmerksamkeiten sowohl Annehmen als auch Geben zu k{\"o}nnen. „Sexuelle Eigenverantwortung" betont schließlich die Einsch{\"a}tzung, inwieweit die eigene Sexualit{\"a}t selbst bestimmt gestaltet werden kann. Mit Emirbayer und Mische werden die sexuellen Erfahrungen der Frauen und M{\"a}nner als Korrelate der Einsch{\"a}tzung der Dimensionen der sexuellen Handlungsf{\"a}higkeit betrachtet. Mit Grundmann et al. sind es zudem verschiedene Pers{\"o}nlichkeitseigenschaften sowie sexualmoralische Einstellungen, deren Beschaffenheiten Aussagen {\"u}ber die sexuelle Handlungsf{\"a}higkeit erlauben. Um die Thematik der sexuellen Handlungsf{\"a}higkeit empirisch zu betrachten, wurden im Jahr 2006 695 junge Potsdamer/innen im Alter von 19 bis 21 Jahren im Rahmen einer standardisierten Erhebung zu ihren sexuellen und Beziehungserfahrungen befragt. Die empirischen Analysen verdeutlichen eine ko-konstruktive Anschauung von der Entwicklung sexueller Handlungsf{\"a}higkeit. Diese entsteht nicht im Individuum allein, sondern innerhalb der Interaktions- und Aushandlungsprozesse des Individuums mit den Anderen seiner sozialen und sexuellen Umwelt. Von Bedeutung erweisen dabei sowohl die Erlebnisse der sexuellen Biografie als auch die Pers{\"o}nlichkeitsmerkmale eines jeden Einzelnen. Nur geringf{\"u}gig erscheinen die erfragten sexualmoralischen Ansichten von Bedeutung.},
  language  = {de}
}
@phdthesis{Biewald2008,
  author    = {Biewald, Anne},
  title     = {A dynamic life cycle model for Germany with unemployment uncertainty},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-33111},
  school      = {Universit{\"a}t Potsdam},
  year      = {2008},
  abstract  = {This work analyzes the saving and consumption behavior of agents faced with the possibility of unemployment in a dynamic and stochastic life cycle model. The intertemporal optimization is based on Dynamic Programming with a backward recursion algorithm. The implemented uncertainty is not based on income shocks as it is done in traditional life cycle models but uses Markov probabilities where the probability for the next employment status of the agent depends on the current status. The utility function used is a CRRA function (constant relative risk aversion), combined with a CES function (constant elasticity of substitution) and has several consumption goods, a subsistence level, money and a bequest function.},
  language  = {en}
}
@phdthesis{Gebauer2008,
  author    = {Gebauer, Denis},
  title     = {A novel view on the early stage of crystallization},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-19818},
  school      = {Universit{\"a}t Potsdam},
  year      = {2008},
  abstract  = {This thesis provides a novel view on the early stage of crystallization utilizing calcium carbonate as a model system. Calcium carbonate is of great economical, scientific and ecological importance, because it is a major part of water hardness, the most abundant Biomineral and forms huge amounts of geological sediments thus binding large amounts of carbon dioxide. The primary experiments base on the evolution of supersaturation via slow addition of dilute calcium chloride solution into dilute carbonate buffer. The time-dependent measurement of the Ca2+ potential and concurrent pH = constant titration facilitate the calculation of the amount of calcium and carbonate ions bound in pre-nucleation stage clusters, which have never been detected experimentally so far, and in the new phase after nucleation, respectively. Analytical Ultracentrifugation independently proves the existence of pre-nucleation stage clusters, and shows that the clusters forming at pH = 9.00 have a proximately time-averaged size of altogether 70 calcium and carbonate ions. Both experiments show that pre-nucleation stage cluster formation can be described by means of equilibrium thermodynamics. Effectively, the cluster formation equilibrium is physico-chemically characterized by means of a multiple-binding equilibrium of calcium ions to a 'lattice' of carbonate ions. The evaluation gives GIBBS standard energy for the formation of calcium/carbonate ion pairs in clusters, which exhibits a maximal value of approximately 17.2 kJ mol^-1 at pH = 9.75 and relates to a minimal binding strength in clusters at this pH-value. Nucleated calcium carbonate particles are amorphous at first and subsequently become crystalline. At high binding strength in clusters, only calcite (the thermodynamically stable polymorph) is finally obtained, while with decreasing binding strength in clusters, vaterite (the thermodynamically least stable polymorph) and presumably aragonite (the thermodynamically intermediate stable polymorph) are obtained additionally. Concurrently, two different solubility products of nucleated amorphous calcium carbonate (ACC) are detected at low binding strength and high binding strength in clusters (ACC I 3.1EE-8 M^2, ACC II 3.8EE-8 M^2), respectively, indicating the precipitation of at least two different ACC species, while the clusters provide the precursor species of ACC. It is proximate that ACC I may relate to calcitic ACC -i.e. ACC exhibiting short range order similar to the long range order of calcite and that ACC II may relate to vateritic ACC, which will subsequently transform into the particular crystalline polymorph as discussed in the literature, respectively. Detailed analysis of nucleated particles forming at minimal binding strength in clusters (pH = 9.75) by means of SEM, TEM, WAXS and light microscopy shows that predominantly vaterite with traces of calcite forms. The crystalline particles of early stages are composed of nano-crystallites of approximately 5 to 10 nm size, respectively, which are aligned in high mutual order as in mesocrystals. The analyses of precipitation at pH = 9.75 in presence of additives -polyacrylic acid (pAA) as a model compound for scale inhibitors and peptides exhibiting calcium carbonate binding affinity as model compounds for crystal modifiers- shows that ACC I and ACC II are precipitated in parallel: pAA stabilizes ACC II particles against crystallization leading to their dissolution for the benefit of crystals that form from ACC I and exclusively calcite is finally obtained. Concurrently, the peptide additives analogously inhibit the formation of calcite and exclusively vaterite is finally obtained in case of one of the peptide additives. These findings show that classical nucleation theory is hardly applicable for the nucleation of calcium carbonate. The metastable system is stabilized remarkably due to cluster formation, while clusters forming by means of equilibrium thermodynamics are the nucleation relevant species and not ions. Most likely, the concept of cluster formation is a common phenomenon occurring during the precipitation of hardly soluble compounds as qualitatively shown for calcium oxalate and calcium phosphate. This finding is important for the fundamental understanding of crystallization and nucleation-inhibition and modification by additives with impact on materials of huge scientific and industrial importance as well as for better understanding of the mass transport in crystallization. It can provide a novel basis for simulation and modelling approaches. New mechanisms of scale formation in Bio- and Geomineralization and also in scale inhibition on the basis of the newly reported reaction channel need to be considered.},
  language  = {en}
}
@phdthesis{Mussil2008,
  author    = {Mussil, Stephan},
  title     = {A secret in spite of itself : recursive meaning in Henry James's 'The Figure in the Carpet'},
  issn      = {0028-6087},
  year      = {2008},
  language  = {en}
}
@phdthesis{Zhou2008,
  author    = {Zhou, Wei},
  title     = {Access control model and policies for collaborative environments},
  address   = {Potsdam},
  pages     = {199 S. : graph. Darst.},
  year      = {2008},
  language  = {en}
}
@phdthesis{Eckardt2008,
  author    = {Eckardt, Sebastian},
  title     = {Accountability and decentralized service delivery : Explaining performance variation across local governments in Indonesia},
  publisher = {Nomos},
  address   = {Baden-Baden},
  isbn      = {978-3-8329-3787-4},
  pages     = {238 S.},
  year      = {2008},
  language  = {en}
}
@phdthesis{Engel2008,
  author    = {Engel, Daniela},
  title     = {Adoptions- und Risikoverhalten von Konsumenten im Internet},
  publisher = {Lang},
  address   = {Frankfurt am Main},
  pages     = {190 S. : graph. Darst.},
  year      = {2008},
  language  = {de}
}
@phdthesis{Reber2008,
  author    = {Reber, Elisabeth},
  title     = {Affectivity in Talk-in-interaction : sound objects in English},
  address   = {Potsdam},
  pages     = {295 S.},
  year      = {2008},
  language  = {en}
}