@book{Kleinwaechter2012,
  author    = {Kleinw{\"a}chter, Lutz},
  title     = {In concreto : zum 60. Geburtstag von Raimund Kr{\"a}mer},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  isbn      = {978-3-86956-167-7},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-57873},
  publisher      = {Universit{\"a}t Potsdam},
  pages     = {125},
  year      = {2012},
  abstract  = {Mit einem Grußwort von Juan Jos{\´e} Linz und Beitr{\"a}gen von Erhard Crome, Jochen Franzke, Heike Imhof-Rudolph, Lutz Kleinw{\"a}chter, Ralf Juan Leiteritz, Claus Montag, Christoph Sebastian Widdau, Azadeh Zamirirad und dem Jubilar.},
  language  = {de}
}
@article{Peters2012,
  author    = {Peters, Friedrich Ernst},
  title     = {Der Gewaltige und der Poet},
  series = {Digitale Edition: Friedrich Ernst Peters},
  journal   = {Digitale Edition: Friedrich Ernst Peters},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-58918},
  year      = {2012},
  abstract  = {Die Dem{\"u}tigung eines armen Dichters durch einen selbstherrlichen Beamten.},
  language  = {de}
}
@article{Peters2012,
  author    = {Peters, Friedrich Ernst},
  title     = {Der Herr Major},
  series = {Digitale Edition: Friedrich Ernst Peters},
  journal   = {Digitale Edition: Friedrich Ernst Peters},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-58904},
  year      = {2012},
  abstract  = {Ein alter Major st{\"o}ßt zu einer Reisegesellschaft, die sich auf einem Dampfer nach Hallig Hooge befindet. Durch seine verbalen Ausf{\"a}lle und seine Trunksucht verspielt der Major allm{\"a}hlich die Achtung, die ihm anfangs entgegengebracht wurde. Eine genaue Beobachtung von gesellschaftlicher Gruppendynamik und unterschiedlichen Rollenverhalten in der Konfrontation mit einem Außenseiter.},
  language  = {de}
}
@article{Peters2012,
  author    = {Peters, Friedrich Ernst},
  title     = {Hinnerk Pick und der Steernkieker},
  series = {Digitale Edition: Friedrich Ernst Peters},
  journal   = {Digitale Edition: Friedrich Ernst Peters},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-58897},
  year      = {2012},
  abstract  = {"Hinnerk Pick und der Steernkieker" ist ein poetischer Text, der sich mit dem Astronomen J. J. Sievers, der an der Altonaer Sternwarte t{\"a}tig war, befasst. J. J. Sievers (1804-1881) stammte aus Stafstedt (Kreis Rendsburg-Eckernf{\"o}rde), einem Dorf in der N{\"a}he von Luhnstedt, dem Heimatdorf von F. E. Peters. Er wird beschrieben als m{\"a}rchenhaft geheimnisvolle Gestalt und zugleich liebenswerter Sonderling, in dessen Augen sich eine Pascalsche Scheu vor der Unendlichkeit des Raumes widerspiegelt. "Immer aber wird mir der Steernkieker teuer bleiben als ein Zeugnis daf{\"u}r, dass aus der Enge eines holsteinischen Dorfes zum Geist gef{\"u}hrt werden kann, wen der Geist gerufen hat. Am Ende ist eines Menschen Drang ins Weite doch vergeblich, wenn er sie nach unruhigen Jahren des Suchens nicht findet in sich selbst." In den Mund des Astronomen Sievers ("de ool Steernkieker", "de ool Klooksnacker") legt Peters am Anfang der "Baasd{\"o}rper Kr{\"o}nk" die ber{\"u}hmte Beschreibung von Baasdorp und der Anlage des Dorfes in drei sozial definierte konzentrische Kreise (reiche Bauern; Halbhufner und kleine Bauern; schließlich Handwerker und Katenbauern).},
  language  = {de}
}
@article{Peters2012,
  author    = {Peters, Friedrich Ernst},
  title     = {Das Opfer},
  series = {Digitale Edition : Friedrich Ernst Peters},
  journal   = {Digitale Edition : Friedrich Ernst Peters},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-58881},
  year      = {2012},
  abstract  = {Der alte Timm Wieben sieht die nat{\"u}rliche gottgewollte Ordnung durch den Fortschritt, d. h. den Bau eines Bahndammes in seinem Dorf, gef{\"a}hrdet. Er prophezeit die Notwendigkeit eines Menschenopfers, das die Erde bes{\"a}nftigen soll: "Es muss etwas Lebiges in die Grund". Daraufhin ereignet sich ein schwerer Unfall. Der aus dem Nachlass ver{\"o}ffentlichte Text geh{\"o}rt eindeutig zu dem Umfeld der "Baasd{\"o}rper Kr{\"o}nk". Er kontrastiert Aberglaube und aufgekl{\"a}rtes Denken, , ohne in Schwarz-Weiß-Malerei zu verfallen. In Peters' Autobiographie Preis der guten M{\"a}chte (1940) erscheint der Großvater als ein F{\"u}rsprecher des Rationalismus und, wie Hans Lohse in der Erz{\"a}hlung, als ein Gegenentwurf zu Timm Wieben ("Dat geiht all nat{\"u}rlich to"). Aber auch er erkennt trotz allem die Macht des {\"U}bernat{\"u}rlichen an. F{\"u}r Peters l{\"o}st sich der Gegensatz zwischen Licht und Dunkel, Aufkl{\"a}rung und D{\"a}monie in der Religion auf: "Und wenn wir auch den beschr{\"a}nkten Geltungsbereich unserer Leuchte erkennen, so haben wir dennoch die Pflicht, sie ins Dunkel hinauszutragen bis an den aller{\"a}ußersten Rand unseres Verm{\"o}gens. Wer aber vor dem letzten, undurchleuchtbaren Dunkel steht, der suche seine Zuflucht nicht bei verd{\"a}chtigen M{\"a}chten des Zaubers, sondern fasse die Hand Gottes, die sich ihm aus der deutschen Bibel Martin Luthers hilfreich entgegenstreckt." (Ausgew{\"a}hlte Werke, Bd II, Hamburg, Hoffmann und Campe, S. 111)},
  language  = {de}
}
@phdthesis{Buchmann2012,
  author    = {Buchmann, Carsten M.},
  title     = {Modelling the structuring of animal communities in heterogeneous landscapes : the role of individual home range formation, foraging movement, competition and habitat configuration},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-59031},
  school      = {Universit{\"a}t Potsdam},
  year      = {2012},
  abstract  = {This thesis aims at a better mechanistic understanding of animal communities. Therefore, an allometry- and individual-based model has been developed which was used to simulate mammal and bird communities in heterogeneous landscapes, and to to better understand their response to landscape changes (habitat loss and fragmentation).},
  language  = {en}
}
@phdthesis{Polyvyanyy2012,
  author    = {Polyvyanyy, Artem},
  title     = {Structuring process models},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-59024},
  school      = {Universit{\"a}t Potsdam},
  year      = {2012},
  abstract  = {One can fairly adopt the ideas of Donald E. Knuth to conclude that process modeling is both a science and an art. Process modeling does have an aesthetic sense. Similar to composing an opera or writing a novel, process modeling is carried out by humans who undergo creative practices when engineering a process model. Therefore, the very same process can be modeled in a myriad number of ways. Once modeled, processes can be analyzed by employing scientific methods. Usually, process models are formalized as directed graphs, with nodes representing tasks and decisions, and directed arcs describing temporal constraints between the nodes. Common process definition languages, such as Business Process Model and Notation (BPMN) and Event-driven Process Chain (EPC) allow process analysts to define models with arbitrary complex topologies. The absence of structural constraints supports creativity and productivity, as there is no need to force ideas into a limited amount of available structural patterns. Nevertheless, it is often preferable that models follow certain structural rules. A well-known structural property of process models is (well-)structuredness. A process model is (well-)structured if and only if every node with multiple outgoing arcs (a split) has a corresponding node with multiple incoming arcs (a join), and vice versa, such that the set of nodes between the split and the join induces a single-entry-single-exit (SESE) region; otherwise the process model is unstructured. The motivations for well-structured process models are manifold: (i) Well-structured process models are easier to layout for visual representation as their formalizations are planar graphs. (ii) Well-structured process models are easier to comprehend by humans. (iii) Well-structured process models tend to have fewer errors than unstructured ones and it is less probable to introduce new errors when modifying a well-structured process model. (iv) Well-structured process models are better suited for analysis with many existing formal techniques applicable only for well-structured process models. (v) Well-structured process models are better suited for efficient execution and optimization, e.g., when discovering independent regions of a process model that can be executed concurrently. Consequently, there are process modeling languages that encourage well-structured modeling, e.g., Business Process Execution Language (BPEL) and ADEPT. However, the well-structured process modeling implies some limitations: (i) There exist processes that cannot be formalized as well-structured process models. (ii) There exist processes that when formalized as well-structured process models require a considerable duplication of modeling constructs. Rather than expecting well-structured modeling from start, we advocate for the absence of structural constraints when modeling. Afterwards, automated methods can suggest, upon request and whenever possible, alternative formalizations that are "better" structured, preferably well-structured. In this thesis, we study the problem of automatically transforming process models into equivalent well-structured models. The developed transformations are performed under a strong notion of behavioral equivalence which preserves concurrency. The findings are implemented in a tool, which is publicly available.},
  language  = {en}
}
@misc{OPUS4-5704,
  title     = {Arabische Br{\"u}che},
  issn      = {0944-8101},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-58930},
  year      = {2012},
  abstract  = {K{\"o}nnen Araber Demokratie? Im Jahr II des Arabischen Fr{\"u}hlings werden erste zarte Triebe der Hoffnungen, die in diese Richtung neigten, von Soldatenstiefeln und fl{\"u}chtenden Demonstranten zertreten. Die versiegelte Zeit brach auf, doch was ist erreicht worden? In der neuen Ausgabe ziehen wir eine Bilanz, die ebenso sachlich wie zwiesp{\"a}ltig ist. Sie zeigt Erfolge, ohne zu besch{\"o}nigen. Probleme werden sichtbar gemacht, aber auch Wege zu ihrer L{\"o}sung. Auch Europa ist gefragt: Wir m{\"u}ssen zu einem neuen, partnerschaftlichen Verh{\"a}ltnis mit den sich wandelnden arabischen Nationen finden!},
  language  = {de}
}
@misc{Thielicke2012,
  author    = {Thielicke, Hubert},
  title     = {Krieg in Sicht?},
  issn      = {0944-8101},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-58926},
  year      = {2012},
  abstract  = {S{\"a}belrasseln und Bombendrohungen am Persischen Golf. Israelische Politiker sprechen sich f{\"u}r Angriffe auf iranische Nuklearanlagen aus, bevor es zu "sp{\"a}t" sei. US-Verteidigungsminister Panetta h{\"a}lt einen Angriff Israels auf den Iran im Fr{\"u}hling f{\"u}r wahrscheinlich, w{\"a}hrend sein Pr{\"a}sident abwiegelt: Israel habe noch keine Entscheidung getroffen, man m{\"u}sse den Sanktionen mehr Zeit geben. Mittlerweile werden aber die Instrumente scharf gemacht. Die 5. Flotte {\"u}berwacht den Golf; in der Region sind etwa 40.000 US-Soldaten stationiert. Der Iran setzt auf Seeman{\"o}ver.},
  language  = {de}
}
@phdthesis{Frasca2012,
  author    = {Frasca, Stefano},
  title     = {Biocatalysis on nanostructured surfaces : investigation and application of redox proteins using spectro-electrochemical methods},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-58131},
  school      = {Universit{\"a}t Potsdam},
  year      = {2012},
  abstract  = {In this thesis, different aspects within the research field of protein spectro- and electro-chemistry on nanostructured materials are addressed. On the one hand, this work is related to the investigation of nanostructured transparent and conductive metal oxides as platform for the immobilization of electroactive enzymes. On the other hand the second part of this work is related to the immobilization of sulfite oxidase on gold nanoparticles modified electrode. Finally direct and mediated spectroelectrochemistry protein with high structure complexity such as the xanthine dehydrogenase from Rhodobacter capsulatus and its high homologues the mouse aldehyde oxidase homolog 1. Stable immobilization and reversible electrochemistry of cytochrome c in a transparent and conductive tin-doped and tin-rich indium oxide film with a well-defined mesoporosity is reported. The transparency and good conductivity, in combination with the large surface area of these materials, allow the incorporation of a high amount of electroactive biomolecules (between 250 and 2500 pmol cm-2) and their electrochemical and spectroscopic investigation. Both, the electrochemical behavior and the immobilization of proteins are influenced by the geometric parameters of the porous material, such as the structure and pore shape, the surface chemistry, as well as the protein size and charge. UV-Vis and resonance Raman spectroscopy, in combination with direct protein voltammetry, are employed for the characterization of cytochrome c immobilized in the mesoporous indium tin oxide and reveal no perturbation of the structural integrity of the redox protein. A long term protein immobilization is reached using these unmodified mesoporous indium oxide based materials, i.e. more than two weeks even at high ionic strength. The potential of this modified material as an amperometric biosensor for the detection of superoxide anions is demonstrated. A sensitivity of about 100 A M-1 m-2, in a linear measuring range of the superoxide concentration between 0.13 and 0.67 μM, is estimated. In addition an electrochemical switchable protein-based optical device is designed with the core part composed of cytochrome c immobilized on a mesoporous indium tin oxide film. A color developing redox sensitive dye is used as switchable component of the system. The cytochrome c-catalyzed oxidation of the dye by hydrogen peroxide is spectroscopically investigated. When the dye is co-immobilized with the protein, its redox state is easily controlled by application of an electrical potential at the supporting material. This enables to electrochemical reset the system to the initial state and repetitive signal generation. The case of negative charged proteins, which does not have a good interaction with the negative charged indium oxide based films, is also explored. The modification of an indium tin oxide film with a positive charged polymer and the employment of a antimony doped tin oxide film were investigated in this work in order to overcome the repulsion induced by similar charges of the protein and electrode. Human sulfite oxidase and its separated heme-containing domain are able to direct exchange electrons with the supporting material. A study of a new approach for sulfite biosensing, based on enhanced direct electron transfer of a human sulfite oxidase immobilized on a gold nanoparticles modified electrode is reported. The spherical gold nanoparticles were prepared via a novel method by reduction of HAuCl4 with branched poly(ethyleneimine) in an ionic liquid resulting in particles of about 10 nm in hydrodynamic diameter. These nanoparticles were covalently attached to a mercaptoundecanoic acid modified Au-electrode and act as platform where human sulfite oxidase is adsorbed. An enhanced interfacial electron transfer and electrocatalysis is therefore achieved. UV-Vis and resonance Raman spectroscopy, in combination with direct protein voltammetry, were employed for the characterization of the system and reveal no perturbation of the structural integrity of the redox protein. The proposed biosensor exhibited a quick steady-state current response, within 2 s and a linear detection range between 0.5 and 5.4 μM with high sensitivity (1.85 nA μM-1). The investigated system provides remarkable advantages, since it works at low applied potential and at very high ionic strength. Therefore these properties could make the proposed system useful in the development of bioelectronic devices and its application in real samples. Finally protein with high structure complexity such as the xanthine dehydrogenase from Rhodobacter capsulatus and the mouse aldehyde oxidase homolog 1 were spectroelectrochemically studied. It could be demonstrated that different cofactors present in the protein structure, like the FAD and the molybdenum cofactor, are able to directly exchange electrons with an electrode and are displayed as a single peak in a square wave voltammogram. Protein mutants bearing a serine substituted to the cysteines, bounding to the most exposed iron sulfur cluster additionally showed direct electron transfer which can be attributable to this cluster. On the other hand a mediated spectroelectrochemical titration of the protein bound FAD cofactor was performed in presence of transparent iron and cobalt complex mediators. The results showed the formation of the stable semiquinone and the fully reduced flavin. Two formal potentials for each single electron exchange step were then determined.},
  language  = {en}
}