The Faculty of Mathematics and Natural Sciences: Search
Now showing items 161-170 of 210
Class forcing and second-order arithmetic
(2017-04-24)
We provide a framework in a generalization of Gödel-Bernays set theory for performing class forcing. The forcing theorem states that the forcing relation is a (definable) class in the ground model (definability lemma) and ...
Vergleichende Untersuchung der Genexpression in humanen Tumorzellknoten und Tumorzellrasen in vitro
(2017-03-24)
Während der Arzneimittelentwicklung scheitern viele in vitro vielversprechend scheinende Wirkstoffe während der klinischen Prüfung am humanen Patienten. Für onkologische Wirkstoffe ist die Ausfallquote besonders hoch. Aus ......
Wave dynamics in random, absorptive or laseractive media
(2017-02-08)
We consider the behavior of light propagating in dielectrically disordered and energetically nonconservative material. Disorder and energy nonconservation can be dealt with via the use of the mathematical formalism commonly ...
Formation of low-mass helium white dwarfs orbiting binary millisecond pulsars
(2017-04-25)
Millisecond pulsars (MSPs) belong to a class of radio pulsars characterized by high rotational spin rates and low magnetic fields. These neutron stars are believed to be the end-product of binary evolution, in which an old ...
Comparing galaxy-galaxy(-galaxy) lensing in semi-analytic models and observations to study galaxy evolution
(2017-03-10)
One of the main challenges in cosmology is to understand the properties of dark matter, its distribution in the Universe, and its connection with baryonic matter. An ideal method to study the relation between baryonic ...
Modeling and Simulation of cracks and fractures with peridynamics in brittle materials
(2017-04-24)
Today, ceramic materials are an essential component of batteries for electric cars. One key feature of this kind of battery is the safety of the ceramic core. Here, the precise approximation of the evolution of damage after ...
Benthic Foraminifera Assemblages from Shallow-Water Ecosystems: Implications for Environmental Assessment and Monitoring
(2017-03-03)
Benthic foraminifera have proved to be useful as present and past indicators in aquatic habitats because they are sensitive and react rapidly to environmental changes in various ecosystems. The knowledge of their modern ...
Systematics, Taxonomy, and Evolution of Urtica L. (Urticaceae)
(2017-04-25)
The systematics of Urtica have puzzled scientists for the past 200 years and no single comprehensive attempt at understanding infrageneric relationships has been published in the past, nor have species delimitations ...
Neuronal Systems Potentially Involved in Autism Spectrum Disorder
(2017-06-01)
Pfn2 is a brain specific actin binding protein involved in actin dynamics. The Pfn2 knock-out mouse model shows an autistic-like phenotype with all of the features commonly reported in autism patients such as social and ......
Cellular biomechanics in 2D and 3D epithelial model tissues: from keratin intermediate filaments to breast gland in vitro reconstructed basement membranes
(2017-01-24)
The mechanical organization of biological tissue is crucial to the load-transmitting capacity of our bodies, and follows a hierarchical architecture that macroscopically results in organ’s formation and function. At the ......