E-Dissertationen: Auflistung E-Dissertationen nach Titel
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Spectral Evolution in Blazars: The Case of CTA 102
Fromm, Christian M. (2013-02-05)Active Galactic Nuclei (AGN) are among the most powerful objects in the universe. In their centre they host a supermassive black hole (BH) with up to 1010 solar masses and an accretion disk is formed around them ... -
Spectral Properties of the Kernel Matrix and their Relation to Kernel Methods in Machine Learning
Braun, Mikio Ludwig (2005)Machine learning is an area of research concerned with the construction of algorithms which are able to learn from examples. Among such algorithms, so-called kernel methods form an important family of algorithms which have ... -
Spectro-spatial observations of galaxy clusters with Planck and CCAT-prime
Erler, Jens (2020-07-07)The Sunyaev-Zeldovich (SZ) effect is a spectral distortion of the cosmic microwave background (CMB) caused by inverse Compton scattering of CMB photons by free electrons in the hot intracluster medium (ICM) of galaxy ... -
Spectrophotometric Studies of Avian Plumage Coloration with Special Emphasis on the Ultraviolet Range
Mullen, Peter (2007)In my survey, altogether 1439 (15 %) of the 9702 bird species listed in Sibley & Monroe’s taxonomic list (1990, 1993) were measured by means of reflection spectrophotometry at different museum collections in Europe, the ... -
Spectroscopy of Xenon and Xenon-Noble Gas Mixtures for Bose-Einstein Condensation of Vacuum-Ultraviolet Photons
vom Hövel, Thilo Falk (2024-01-03)Bose-Einstein condensation of photons has first been observed in 2010 by the group of Martin Weitz in Bonn. In the experimental scheme, a photon gas is confined to a wavelength-size microcavity filled with a liquid dye ... -
Spektraläquivalente Vorkonditionierung lokaler Operatoren mittels H-Matrizen und das Landau-Lifschitz-Modell als Anwendung
Bratsch, Michael (2013-03-25)Diese Arbeit beschäftigt sich mit der optimalen Vorkonditionierung von Gleichungssystemen resultierend aus der finite Elemente Diskretisierung von elliptischen Differentialgleichung zweiter Ordnung. Anschließend wird ein ... -
Spektroskopische Untersuchungen zum Adsorptions- und Desorptionsverhalten von Methanol auf Palladium(111) und Pd-Sn/Pd(111)-Oberflächenlegierungen
Schmidt, Thomas (2007)In der vorliegenden Arbeit wurden Zerfallsstudien von Methanol auf verschiedenen Oberflächen, insbesondere auf Palladium(111), und zwei unterschiedlich strukturierten Pd-Sn-Legierungen durchgeführt. Die vier angewandten ... -
Sperm competition and female remating rate in the scorpionfly Panorpa germanica, L. (Mecoptera, Panorpidae)
Kock, Dagmar (2005)Sperm competition can be a powerful selective force in the evolution of reproductive strategies and mating systems. In the last decades many insect species have been studied in terms of sperm competition (for reviews see ... -
Sperm competition in the scorpionfly Panorpa communis (Mecoptera, Insecta)
Siegmund, Barbara W. (2007)The aim of the present study was to investigate the basal mechanism of sperm competition in the European scorpionfly Panorpa communis. Within three laboratory experiments, I used five newly developed microsatellite ... -
Spermidin Metabolismus in Plasmodium falciparum und Plasmodium vivax: Biochemische und molekularbiologische Untersuchungen der Deoxyhypusinsynthase und des eukaryontischen Translationsinitiationsfaktors 5A
Gottwald, Andrea Martina (2005)Im Rahmen der Arbeit wurde der Spermidin Metabolismus in Plasmodium falciparum und Plasmodium vivax molekularbiologisch und biochemisch untersucht. Ziel war es mögliche "molekulare Targets" für neue ... -
Sphärische Lyophilisate zur pulmonalen Proteinapplikation
Wanning, Stefan Alexander (2019-07-12)Die pharmazeutische Sprüht-Gefrier-Trocknung (Spray-Freeze-Drying) umfasst ein heterogenes Feld von Technologien mit primären Anwendungen in den Bereichen Löslichkeitsverbesserung, pulmonale und nadelfreie intra-dermale ... -
SPI-6 Expression Protects Embryonic Stem Cells from Lysis by Antigen-Specific CD8+ Cytotoxic T Lymphocytes
Abdullah, Zeinab (2008)Embryonic stem (ES) cells are defined by their capacity of self renewal and the potential to give rise to any differentiated cell type of the entire organism. These properties have made ES cells promising tools for future ... -
„Spielregeln der Natur” (Prinzipien der Ökologie): Entwicklung eines fachdidaktischen Konzepts für eine moderne Ökologieausstellung unter besonderer Berücksichtigung Neuer Medien
Schmitt-Scheersoi, Annette (2003)Neben den klassischen Aufgaben des Museums – Sammeln, Erforschen, Bewahren, Ausstellen – tritt die Bildungsfunktion immer mehr in den Vordergrund. Um dem Bildungsauftrag gerecht werden zu können, kommt der didaktisch-methodischen ... -
Spin and Flavour dependent Interactions within a Quark Model for Baryons
Ronniger, Michael (2013-06-14)Within the framework of a relativistic covariant quark model the effects of two novel quark interactions on the light-flavoured baryon mass spectra as well as on a multitude of observables, such as electroweak form factors, ... -
Spin Labeling of and EPR Spectroscopic Studies on functional Oligonucleotides
Wübben, Christine (2021-05-10)Within the last three decades, the central dogma of molecular biology has been extended in the sense that RNA is not only the molecule from which the genetic information is translated into proteins but is involved in ... -
Spindynamik in Elektronensynchrotronen
Schmidt, Jan Felix (2017-09-29)Um unser Verständnis des Aufbaus der Materie voranzutreiben sind Experimente mit hochenergetischen Teilchen erforderlich, bei denen alle Eingangsparameter bekannt sind und variiert werden können. Zu diesen gehört auch die ... -
Spindynamik von Elektronenstrahlen in Kreisbeschleunigern
Boldt, Oliver (2014-07-01)Spinpolarisierte Teilchenstrahlen bereichern seit den Experimenten von Stern und Gerlach physikalische Experimente in einer Vielzahl von Anwendungen. Gerade in der Hochenergiephysik kamen in der jüngeren Vergangenheit ... -
Spiral Galaxies with Thick Box/Peanut Bulges
Vergani, Daniela (2003)The close connection between bars and box/peanut-shaped bulges is observationally and theoretically supported. However, for the class of thick box/peanut-shaped bulges an environmental hypothesis instead of an internal ... -
Spitting behaviour and fang morphology of spitting cobras
Berthé, Ruben Andres (2011-11-18)To investigate the influence of different parameters on the venom spitting, behavioural experiments were conducted. In these experiments different targets were presented to the cobras. The results showed that contrary to ... -
Split Analysis Methods and Parametric Bootstrapping in Molecular Phylogenetics: Taking a closer look at model adequacy
Meid, Sandra A. (2015-06-08)Even though the size of datasets in molecular analyses increased rapidly during the last years, undetected systematic errors as well as unsolved problems concerning the evaluation of data quality and adequate substitution ...