Browsing Naturwissenschaften, Mathematik und Informatik by Title
Now showing items 41-60 of 5808
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A healthy social life? Sociality and health indicators in wild red-fronted lemurs
(2022-06-29)In the last 40 years, an increasing number of studies from medicine, neurosciences, and psychology demonstrated links between many aspects of sociality, health, and fitness in humans and laboratory animals. Some studies ... -
A Hybrid Method for Inverse Obstacle Scattering Problems
(2007-05-30)We are interested in solving the time-harmonic inverse acoustic scattering problem. In this work, we present the state of the art of a new iterative method to numerically solve this problem. ... -
A journey toward independence in young mandrills ("Mandrillus sphinx"): the intertwined effects of early life adversity and maternal investment
(2025-12-15)Early life adversity (‘ELA’) can have lasting effects on development influencing both survival and physical growth in wild animal populations, with maternal care playing a crucial role in shaping these trajectories and ... -
A knowledge base for generating patient-specific pathways for individualized treatment decisions in clinical applications
(2022-09-29)The vast amount of published data on molecular interactions makes it increasingly challenging for researchers and practitioners to find and extract the most relevant information to target the underlying diseases. Network ... -
A level set approach to integer nonlinear optimization
(2013-11-19)Integer nonlinear optimization programs form a class of very hard problems. Often it is much easier to solve the continuous relaxation. Therefore we are interested in this thesis in identifying special cases of integer ... -
A Massively Parallel Finite Element Framework with Application to Incompressible Flows
(2011-05-13)The incompressible Navier-Stokes equations describe the flow of Newtonian fluids or gases. They are used in many numerical simulations of flow problems. These simulations have become an ... -
A Mathematical Approach to Self-Organized Criticality in Neural Networks
(2008-12-22)Self-organized criticality (SOC) is one of the key concepts to describe the emergence of complexity in natural systems. Recently a candidate for a SOC system has been found in the recordings ... -
A matter of brightness: table-top X-ray generation inside waveguides and X-ray holography with single free-electron laser pulses
(2022-03-22)X-ray microscopy delivers insights into the structure of optically opaque bulk specimens with high spatial resolution. The source brightness poses a limit on the achievable resolution, however. While table-top X-ray sources ... -
A Mayer-Vietoris Spectral Sequence for C*-Algebras and Coarse Geometry
(2019-04-10)Let $A$ be a C*-algebra that is the norm closure $A = \overline{\sum_{\beta \in \alpha} I_\beta}$ of an arbitrary sum of C*-ideals $I_\beta \subseteq A$. We construct a homological spectral sequence that takes as input the ... -
A Measure-Theoretic Perspective on Multivariate Information with Applications to Data Science
(2025-09-17)This dissertation establishes a measure-theoretic foundation for information theory by formulating entropy, mutual information, and related quantities on a common type of probability spaces. Using Radon–Nikodym derivatives ... -
A method for the genetically encoded incorporation of FRET pairs into proteins
(2014-09-03)Proteins are composed of 20 canonical amino acids whose unique arrangements predefine a protein’s structure and function. Importantly, most proteins are not static conformations but rather very dynamic entities that undergo ... -
A Multi-Layered Identity and Access Management Solution for Establishment of Scalable Federated Identity
(2023-12-22)Federated identity management (FIM) systems are defined as a group of organizations (entities) that have agreed to establish trust relationships and share identity information to enable seamless access to resources across ... -
A Multi-objective Ant Colony Optimisation-based Routing Approach for Wireless Sensor Networks Incorporating Trust
(2012-08-31)In the near future, Wireless Sensor Networks (WSNs) are expected to play an important role for sensing applications, in the civilian as well as in the military sector. WSNs are autonomous, distributed, self-organised ... -
A Multi-Scale Assessment and Modeling of Water and Land Resources for Sustainability in the Lower Okavango River Basin: Integrating Climate Change, Land Use, and Hydrological Dynamics
(2025-07-11)This dissertation provides a multi-scale assessment and modeling of water and land resources within the Lower Okavango River Basin, aiming to foster sustainability by integrating the complex dynamics of climate change, ... -
A mutant with apetalous flowers in oilseed rape (Brassica napus): Mode of inheritance and influence on crop physiology and sclerotinia infection
(2001-02-23)Apetalous genotypes might be of interest in oilseed rape breeding because of their more efficient photosynthesis and reallocation of the photosynthesized assimilates and a lower probability ... -
A neuronal PIP3-dependent program of oligodendrocyte precursor recruitment and myelination
(2017-01-26)Evolution of myelin has enabled rapid impulse propagation and development of complex brain circuitry. However, the in vivo mechanisms that trigger and orchestrate proliferation of oligodendrocyte precursor cells (OPCs), ... -
A new approach to the investigation of Iwasawa invariants
(2015-01-05)Let K be a fixed number field, let p be a prime number, and let Z_p denote the additive group of p-adic integers. The growth of the p-Sylow subgroups of the ideal class groups of the intermediate fields in a Z_p-extension ... -
A new rodent model of Parkinson s Disease based on neuron specific downregulation of glutathione production.
(2009-04-21)Parkinson s disease (PD) is characterized by a progressive degeneration of the nigrostriatal system. Only in few patients genetic mutations have been identified to cause disease onset, ... -
A nidulans development and secondary metabolism requires coordinated VeA nuclear import and export
(2025-02-14)Survival of multicellular organisms requires the functional interplay between complex regulatory networks including gene expression, the ubiquitin proteasome protein degradation system, and intracellular transport control. ... -
A novel approach of immittance-spectra analysis and how it resolves a decade-old deviation of the Frenkel-Poole model
(2017-02-23)Immittance (i.e. a generalisation of all quantities containing identical information as e.g. the impedance) spectroscopy is a well-established and versatile method with a broad range of applications in a wide variety of ...