@phdthesis{Duemke2015,
  author    = {D{\"u}mke, Christian},
  title     = {Daseinsvorsorge, Wettbewerb und kommunale Selbstverwaltung im Bereich der liberalisierten Energiewirtschaft},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  isbn      = {978-3-86956-314-5},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-73914},
  school      = {Universit{\"a}t Potsdam},
  pages     = {175},
  year      = {2015},
  abstract  = {Die Arbeit befasst sich zun{\"a}chst mit der Analyse und Einordnung des Begriffs der Daseinsvorsorge und deren Erbringung durch den Staat. Schwerpunkt der Betrachtung bildet dabei die Energieversorgung als klassische Aufgabe staatlicher Daseinsvorsorge. Weiterhin wird der durch die Liberalisierung der Energieversorgung im Jahr 1998 eingeleitete Wandel von sog. nat{\"u}rlichen Monopolen, hin zu einem wettbewerblichen System betrachtet. Dabei wird aufgezeigt, dass sich durch die Einf{\"u}hrung des Wettbewerbs weder die damit erhofften Kostenreduzierungen, noch das von Kritikern bef{\"u}rchtete Sterben der kommunalen Energieversorger bewahrheitet haben. Statt einer freien Preisbildung im Wettbewerb ist es zu einer faktischen Verlagerung der fr{\"u}her staatlich festgesetzten Energiepreisgenehmigung auf die Gerichte gekommen, die hierf{\"u}r jedoch nicht ausgelegt sind. Kommunale Stadtwerke haben sich in der wettbewerblichen Energieversorgung dagegen so gut behauptet, dass seit einiger Zeit ein Trend zur Rekommunalisierung von Energieversorgung auf kommunaler Ebene zu verzeichnen ist. Diesem offensichtlichen Wunsch nach einer gesteigerten Einflussnahme der Gemeinden auf die {\"o}rtliche Energieversorgung l{\"a}uft der aktuelle Rechtsrahmen der energierechtlichen Konzessionsvergabe in Gestalt des \S 46 EnWG und seiner Auslegung durch die Rechtsprechung der Zivilgerichte zuwider. Die Arbeit zeigt auf, dass von Beginn der Liberalisierung der kommunale Einfluss auf die {\"o}rtliche Konzessionsvergabe schrittweise und stetig beschnitten wurde, so dass gegenw{\"a}rtig ein Zustand der Aush{\"o}hlung erreicht ist, der als unzul{\"a}ssiger Eingriff in den gesch{\"u}tzten Kernbereich der kommunalen Selbstverwaltungsgarantie i.S.d. Art. 28 II GG anzusehen ist.},
  language  = {de}
}
@phdthesis{Eppinger2015,
  author    = {Eppinger, Elisabeth},
  title     = {Patentpools},
  pages     = {384},
  year      = {2015},
  abstract  = {Elisabeth Eppinger erforscht in diesem Buch aktuelle Patentpools, ihre Eigenschaften und alternative L{\"o}sungen zur gemeinsamen Nutzung von Patenten. Patentpools haben das Potenzial, Patentblockaden zu l{\"o}sen und Innovationen zu f{\"o}rdern. Die Autorin diskutiert die Rolle von Patentkooperationen im Rahmen des strategischen Technologie- und Innovationsmanagements sowie der Innovationsf{\"o}rderung. Es wird gezeigt, welche strukturellen Faktoren, Motive und Charakteristika von Akteuren unterschiedliche Patentpools beg{\"u}nstigen},
  language  = {de}
}
@phdthesis{Zajnulina2015,
  author    = {Zajnulina, Marina},
  title     = {Optical frequency comb generation in optical fibres},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-88776},
  school      = {Universit{\"a}t Potsdam},
  pages     = {xii, 103},
  year      = {2015},
  abstract  = {Optical frequency combs (OFC) constitute an array of phase-correlated equidistant spectral lines with nearly equal intensities over a broad spectral range. The adaptations of combs generated in mode-locked lasers proved to be highly efficient for the calibration of high-resolution (resolving power > 50000) astronomical spectrographs. The observation of different galaxy structures or the studies of the Milky Way are done using instruments in the low- and medium resolution range. To such instruments belong, for instance, the Multi Unit Spectroscopic Explorer (MUSE) being developed for the Very Large Telescope (VLT) of the European Southern Observatory (ESO) and the 4-metre Multi-Object Spectroscopic Telescope (4MOST) being in development for the ESO VISTA 4.1 m Telescope. The existing adaptations of OFC from mode-locked lasers are not resolvable by these instruments. Within this work, a fibre-based approach for generation of OFC specifically in the low- and medium resolution range is studied numerically. This approach consists of three optical fibres that are fed by two equally intense continuous-wave (CW) lasers. The first fibre is a conventional single-mode fibre, the second one is a suitably pumped amplifying Erbium-doped fibre with anomalous dispersion, and the third one is a low-dispersion highly nonlinear optical fibre. The evolution of a frequency comb in this system is governed by the following processes: as the two initial CW-laser waves with different frequencies propagate through the first fibre, they generate an initial comb via a cascade of four-wave mixing processes. The frequency components of the comb are phase-correlated with the original laser lines and have a frequency spacing that is equal to the initial laser frequency separation (LFS), i.e. the difference in the laser frequencies. In the time domain, a train of pre-compressed pulses with widths of a few pico-seconds arises out of the initial bichromatic deeply-modulated cosine-wave. These pulses undergo strong compression in the subsequent amplifying Erbium-doped fibre: sub-100 fs pulses with broad OFC spectra are formed. In the following low-dispersion highly nonlinear fibre, the OFC experience a further broadening and the intensity of the comb lines are fairly equalised. This approach was mathematically modelled by means of a Generalised Nonlinear Schr{\"o}dinger Equation (GNLS) that contains terms describing the nonlinear optical Kerr effect, the delayed Raman response, the pulse self-steepening, and the linear optical losses as well as the wavelength-dependent Erbium gain profile for the second fibre. The initial condition equation being a deeply-modulated cosine-wave mimics the radiation of the two initial CW lasers. The numerical studies are performed with the help of Matlab scripts that were specifically developed for the integration of the GNLS and the initial condition according to the proposed approach for the OFC generation. The scripts are based on the Fourth-Order Runge-Kutta in the Interaction Picture Method (RK4IP) in combination with the local error method. This work includes the studies and results on the length optimisation of the first and the second fibre depending on different values of the group-velocity dispersion of the first fibre. Such length optimisation studies are necessary because the OFC have the biggest possible broadband and exhibit a low level of noise exactly at the optimum lengths. Further, the optical pulse build-up in the first and the second fibre was studied by means of the numerical technique called Soliton Radiation Beat Analysis (SRBA). It was shown that a common soliton crystal state is formed in the first fibre for low laser input powers. The soliton crystal continuously dissolves into separated optical solitons as the input power increases. The pulse formation in the second fibre is critically dependent on the features of the pulses formed in the first fibre. I showed that, for low input powers, an adiabatic soliton compression delivering low-noise OFC occurs in the second fibre. At high input powers, the pulses in the first fibre have more complicated structures which leads to the pulse break-up in the second fibre with a subsequent degradation of the OFC noise performance. The pulse intensity noise studies that were performed within the framework of this thesis allow making statements about the noise performance of an OFC. They showed that the intensity noise of the whole system decreases with the increasing value of LFS.},
  language  = {en}
}
@phdthesis{FuentesTaladriz2015,
  author    = {Fuentes Taladriz, Paulina Andrea},
  title     = {High-level production of the antimalarial drug precursor artemisinic acid in plastids and in vivo visualization of plastid-to-nucleus gene transfer},
  school      = {Universit{\"a}t Potsdam},
  pages     = {148},
  year      = {2015},
  language  = {en}
}
@phdthesis{Hosp2015,
  author    = {Hosp, Sven},
  title     = {Modifizierte Cross-Party Codes zur schnellen Mehrbit-Fehlerkorrektur},
  pages     = {105},
  year      = {2015},
  language  = {de}
}
@phdthesis{Prokhorov2015,
  author    = {Prokhorov, Boris E.},
  title     = {High-latitude coupling processes between thermospheric circulation and solar wind driven magnetospheric currents and plasma convection},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-92353},
  school      = {Universit{\"a}t Potsdam},
  pages     = {117},
  year      = {2015},
  abstract  = {The high-latitudinal thermospheric processes driven by the solar wind and Interplanetary Magnetic Field (IMF) interaction with the Earth magnetosphere are highly variable parts of the complex dynamic plasma environment, which represent the coupled Magnetosphere - Ionosphere - Thermosphere (MIT) system. The solar wind and IMF interactions transfer energy to the MIT system via reconnection processes at the magnetopause. The Field Aligned Currents (FACs) constitute the energetic links between the magnetosphere and the Earth ionosphere. The MIT system depends on the highly variable solar wind conditions, in particular on changes of the strength and orientation of the IMF. In my thesis, I perform an investigation on the physical background of the complex MIT system using the global physical - numerical, three-dimensional, time-dependent and self-consistent Upper Atmosphere Model (UAM). This model describes the thermosphere, ionosphere, plasmasphere and inner magnetosphere as well as the electrodynamics of the coupled MIT system for the altitudinal range from 80 (60) km up to the 15 Earth radii. In the present study, I developed and investigated several variants of the high-latitudinal electrodynamic coupling by including the IMF dependence of FACs into the UAM model. For testing, the various variants were applied to simulations of the coupled MIT system for different seasons, geomagnetic activities, various solar wind and IMF conditions. Additionally, these variants of the theoretical model with the IMF dependence were compared with global empirical models. The modelling results for the most important thermospheric parameters like neutral wind and mass density were compared with satellite measurements. The variants of the UAM model with IMF dependence show a good agreement with the satellite observations. In comparison with the empirical models, the improved variants of the UAM model reproduce a more realistic meso-scale structures and dynamics of the coupled MIT system than the empirical models, in particular at high latitudes. The new configurations of the UAM model with IMF dependence contribute to the improvement of space weather prediction.},
  language  = {en}
}
@phdthesis{Feldmann2015,
  author    = {Feldmann, Johannes},
  title     = {Stability of the West Antarctic Ice Sheet},
  pages     = {v, 165},
  year      = {2015},
  language  = {en}
}
@phdthesis{Bosch2015,
  author    = {Bosch, Sina},
  title     = {Morphosyntactic feature structure in the native and non-native mental lexicon},
  pages     = {VI, 166},
  year      = {2015},
  language  = {en}
}
@phdthesis{Sakschewski2015,
  author    = {Sakschewski, Boris},
  title     = {Impacts of major anthropogenic pressures on the terrestrial biosphere and its resilience to global change},
  school      = {Universit{\"a}t Potsdam},
  pages     = {159},
  year      = {2015},
  language  = {en}
}
@phdthesis{Jedrzejowski2015,
  author    = {Jedrzejowski, Lukasz},
  title     = {Subjektanhebungsverben im Deutschen},
  pages     = {vii, 307},
  year      = {2015},
  language  = {de}
}