On the origin of polymorphism - consequences of competition and predation in heterogeneous environments

In this thesis, I have studied when an initially monomorphic population can diverge into two morphs in a heterogeneous environment. Evolution is driven by competition for resources or predation. In Paper I, we studied source-sink dynamics during evolution in an environment with two types of resource of different abundance in two habitats. We found that dispersal can help maintain higher diversity

Bidirectional FFT Processor for OFDM

Regional and spatial patterns of the Pentad Rainfall Data in the semi arid area of Tunisia

A Dynamic Social Network Logic

The release of terpenes during storage of biomass

During outdoor storage of large quantities of wood fuels, hydrocarbons are emitted into air in gas phase and leached out into the ground by precipitation. To investigate to what extent these emissions have environmental or health effects, sampling has been done on wood chip piles in an existing terminal storage situated in the south of Sweden, north east of Växjö. Sampling was done by solid phase

Quaternary binary trilinear forms of norm unity

Att känna sig hemma på många ställen

Molecules and Clusters on Oxide Surfaces

In this thesis X-ray photoelectron spectroscopy, X-ray absorption spectroscopy, scanning tunneling microscopy,and density functional theory have been used to study the fundamental interactions between model oxidesurfaces and either organic, mixed organic/inorganic, or purely inorganic adsorbate layers. As model oxidesurfaces have served the rutile TiO2(110) surface and an in-situ grown iron oxide

Galvanic Vestibular Stimulation for Analysis of Postural Adaptation and Stability

Folkhälsoarbetets historia i socialmedicinsk belysning

Social medicine and public health have through history had a common and contemporary development and therefore shared common beliefs about what population health is and how it ought to be handled. It is with Industrialization that social medicine has its roots, when dramatic society changes contribu- ted to an interest towards causes in the social environment or in the political economic structure

Reversed fortunes in Victorian governess novels

Computationally Efficient Robust Adaptive Beamforming for Passive Sonar

Recent work has highlighted the benefits of exploiting robust Capon beamformer (RCB) techniques in passive sonar. Unfortunately, the computational requirements for computing the standard RCB weights are cubic in the number of adaptive degrees of freedom, which may be computationally prohibitive in practical situations. Here, we examine recent computationally efficient techniques for computing the

Queer(ing) youth, schools, and the end of innocence. Problematizing understandings of non-heteronormative youth in schools

Exact and asymptotic dispersion relations for homogenization of stratified media with two phases

Using exact dispersion relations for electromagnetic wave propagation in layered, periodic media, consisting of two phases, we derive explicit asymptotic solutions for small wavenumbers. These solutions are compared to the numerical solutions of the exact dispersion relations, and applications to homogenization problems are discussed. The results can be used as test cases for homogenization techni

Microporous polymer electrolyte membranes.

Automobility among the Elderly – The Convergence of Environmental, Safety, Mobility and Land Use Issues

Optimal measurements, time-reversal, and automatic frequency tuning

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Integrating article databases and full text archives into a digital journal collection

Method of estimating resource requirements for a circuit design