Search for dissertations about: "spatial structure"

Showing result 1 - 5 of 620 swedish dissertations containing the words spatial structure.

  2. 1. Species interactions and community structure

    Author : Peter Frodin; Technology and Social Change (WTS) Centre for Work; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; Ekologi; spatial structure; local stability; enrichment; species interactions; Community structure; population dynamics;

    Abstract : In this theses I have focused on how the mechanisms of species interactions affect community structure. It is well known that certain species may have a particularly strong influence on the structure of a community. What is not fully understood is how to characterize these species that have such a strong impact on community structure. READ MORE

  4. 2. Computational methods for analysis of spatial transcriptomics data : An exploration of the spatial gene expression landscape

    Author : Alma Andersson; Joakim Lundeberg; Omer Bayraktar; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; spatial transcriptomics; machine learning; data analysis; RNA-seq; probabilistic; statistical; models; Biotechnology; Bioteknologi;

    Abstract : Transcriptomics techniques, whether in the form of bulk, single cell/nuclei, or spatial methods have fueled a substantial expansion of our knowledge about the biological systems within and around us. In addition, the rate of innovation has accelerated over the last decade, resulting in a multitude of technological advances and new methods for generation of transcriptomics data. READ MORE

  5. 3. Spatial Spread of Organisms : Modeling ecological and epidemiological processes

    Author : Tom Lindström; Uno Wennergren; Colleen Webb; Linköpings universitet; []
    Keywords : Spatial kernel; Spatially explicit modeling; Disease transmission; Animal movements; NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : This thesis focuses on the spread of organisms in both ecological and epidemiological contexts. In most of the studies presented, displacement is modeled with a spatial kernel function, which is characterized by scale and shape. These are measured by the net squared displacement (or kernel variance) and kurtosis, respectively. READ MORE

  6. 4. Genetic structure and dispersal in plant populations

    Author : Johan Fogelqvist; Martin Lascoux; Sophie Gerber; Beng-Olle Bengtsson; Uppsala universitet; []
    Keywords : population genetics; dispersal; structure; plant; gene flow;

    Abstract : This thesis focuses on the spatial structure and methods to identify spatial structure in plants. Methods that investigate genetic structure can mainly be divided into equilibrium methods that reveal summed dispersal over many generations, and cluster methods, that reveal more recent dispersal events. READ MORE

  7. 5. Hedonic prices, economic growth, and spatial dependence

    Author : Krister Sandberg; Lars Westin; Bernard Fingleton; Umeå universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; business and economics; hedonic prices; spatial econometrics; co-operative flats; spatial dependence; SAR-GM; Single-family Homes; Heterogeneity; China; Convergence; Provincial Economic Growth; Ekonomi; Business and economics; Ekonomi; nationalekonomi; Economics;

    Abstract : This thesis consists of three papers on econometric modeling of spatial dependence. The awareness of interactions between actors is fundamental for understanding property markets as well as the growth of regions. In both cases, neighbors and neighboring markets may stimulate or hamper growth of values. READ MORE