The Faculty of Mathematics and Natural Sciences: Browsing Mathematisch-Naturwissenschaftliche Fakultät by Title
Now showing items 3513-3532 of 4320
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Small-scale Physical and Chemical Structure of Diffuse and Translucent Molecular Clouds along the Line of Sight to the Galactic Center
Thiel, Vivien (2019-05-02)Diffuse and translucent molecular clouds constitute a large part of the molecular interstellar medium (ISM) in our Galaxy as well as in other spiral galaxies. In particular, the envelopes of giant molecular clouds (GMCs), ... -
Small-scale studies of the Milky Way disc and halo gas with absorption-line spectroscopy
Nasoudi Shoar, Soroush (2012-12-13)Progressive studies in the last decades have shown that the interstellar medium (ISM) is more complex and dynamic than previously thought. The presence of the small-scale structures, structures on scales below 1 pc, has ... -
SMNrp und TUBA: Isolierung und Charakterisierung zweier neuer Gene mit Homologie zu SMN, dem Krankheitsgen der spinalen Muskelatrophie
Plöttner, Oliver (2002)Spinale Muskelatrophie, die zweithäufigste autosomal rezessive Erbkrankheit mit Todesfolge beim Menschen, wird durch Mutationen im SMN1-Gen verursacht, die zu einem Mangel an funktionellem SMN-Protein in den Zellen ... -
Smooth 4-Manifolds and Surface Diagrams
Behrens, Stefan (2014-06-18)Surface diagrams are a diagrammatic representation of smooth, 4-dimensional manifolds. In fact, a surface diagram encodes a 4-manifold together with a map onto the 2-sphere. After giving a detailed proof of this correspondence, ... -
Smoothed Analysis of Selected Optimization Problems and Algorithms
Brunsch, Tobias (2014-03-20)Optimization problems arise in almost every field of economics, engineering, and science. Many of these problems are well-understood in theory and sophisticated algorithms exist to solve them efficiently in practice. ... -
Soft tissue preservation in amber: a comparative study on the taphonomy and limits of fossilisation of resin embedded arthropods
Barthel, Hans Jonas (2022-11-02)This doctoral thesis deals with the limits of morphological and biomolecular preservation of fossils in amber and provides new information on their taphonomy. A particular focus lies on arthropod inclusions from Cambay and ... -
Software Security Metrics for Malware Resilience
Langweg, Hanno (2008)We examine the level of resistance offered by a software product against malicious software (malware) attacks. Analysis is performed on the software architecture. This is available as a result of the software design process ... -
Software Supply Chain Angriffe: Analyse und Erkennung
Ohm, Marc-Philipp (2021-09-29)Moderne Softwareentwicklung profitiert in vielen Hinsichten von der ausgiebigen Wiederverwendung externer Softwaremodule. Die Abhängigkeit von externen und somit schwer zu kontrollierenden Softwaremodulen – welche in ihrer ... -
Soil characteristics and soil erosion by water in a semi-arid catchment (Wadi Drâa, South Morocco) under the pressure of global change
Klose, Anna (2009-11-24)Soil resources are crucial for the well-being of man and the environment. The results of the first Global Assessment of Human-induced Soil Degradation (GLASOD) indicate that 13% of the world’s soils are degraded; thereof ... -
Soil degradation by water erosion in a sub-humid West-African catchment: a modelling approach considering land use and climate change in Benin
Hiepe, Claudia (2008)Soil degradation threatens agricultural production and food security in Sub-Saharan Africa. In the coming decades, soil degradation, in particular soil erosion, will become worse through the expansion of agriculture into ... -
Soil Moisture Analysis Based On Microwave Brightness Temperatures: A Study on Systematic and Random Errors
Wilker, Henning (2007)In the context of the EU research project ELDAS, the European Centre for Medium-Range Weather Forecasts developed an experimental soil moisture analysis system which is able to assimilate both screen-level variables (2-metre ... -
Solvatisierte Elektronen zum Abtasten der elektronischen Struktur von flüssigem Ammoniak
Vogler, Tim Georg (2019-02-18)Die Photolyse von reinem flüssigen Ammoniak mit ultraviolettem (UV) Laserlicht erzeugt solvatisierte Elektronen. Ist ein Elektron innerhalb einer Flüssigkeit an kein Atom gebunden, aber dennoch vom Solvens eingebettet, ... -
Solving all the problems of our universe, one neutrino mass model at a time
Berbig, Maximilian (2023-12-11)The masses and mixing in the neutrino sector can not be explained by the Standard Model (SM) of particle physics and might be a harbinger for new degrees of freedom at energies scales far above or comparable to the electroweak ... -
Some Applications of the Weighted Combinatorial Laplacian
Szegedy, Christian (2005)The weighted combinatorial Laplacian of a graph is a symmetric matrix which is the discrete analogue of the Laplacian operator. In this thesis, we will study a new application of this matrix to matching theory yielding a ... -
Some Aspects in Cosmological Perturbation Theory and ƒ (R) Gravity
Castañeda C, Leonardo (2016-09-08)General Relativity, the currently accepted theory of gravity, has not been thoroughly tested on very large scales. Therefore, alternative or extended models provide a viable alternative to Einstein’s theory. In this thesis ... -
Some asymptotic results on non-standard likelihood ratio tests, and Cox process modeling in finance
Szimayer, Alexander (2002)This dissertation consists of two parts. In the first part, the subject of hypothesis testing is addressed. Here, non-standard formulations of the null hypothesis are discussed, e.g., non-stationarity under the null, and ... -
Sorting, missorting and spreading of Tau in neurons studied in microfluidic chambers
Balaji, Varun Venkatesh (2017-09-04)Tau is a microtubule-associated protein which plays an important role in stabilizing microtubules (Mandelkow and Mandelkow, 2012). Tau is mainly an axonal protein but it is missorted into the somatodendritic compartment ... -
Sozialökonomische Klassifikation der kleinbäuerlichen Bevölkerung im Gebiet von Puebla-Tlaxcala (Mexiko)
Sander, Hans-Jörg (1977)In der jüngsten Phase des Mexiko-Projekts der Deutschen Forschungsgemeinschaft sind gegenwartsbezogene Fragestellungen wie z. B. die der ländlichen Sozialstruktur in den Vordergrund getreten. Die vorliegende Arbeit, die ... -
Sozialökonomische Struktur- und Wahlverhalten am Beispiel der Bundestagswahlen von 1980 und 1983 in Essen
Hahn, Helmut; Kemper, Franz-Josef (1985)Socio-economic structure and voting behaviour.
The example of the national elections 1980 and 1983 in Essen
The present exploratory study examines to which extent electoral data can be ... -
Sozialräumliche Entwicklung des Siegerlandes seit der Mitte des 19. Jahrhunderts: Sozialgeographische Untersuchungen unter besonderer Berücksichtigung der Veränderungen sozialer Kommunikationsnetze (Heiratsverflechtungen)
Weber, Bernd (1977)Die vorliegende Dissertation sucht - anhand von Heiratsverflechtungen - die historischen und sozialen Wurzeln räumlichen Verhaltens sowie dessen Veränderlichkeit und Konsistenz seit dem Beginn der "modernen" Industrialisierung ...