Search for dissertations about: "population coding"

Showing result 1 - 5 of 116 swedish dissertations containing the words population coding.

2. 1. Machine Learning Techniques with Specific Application to the Early Olfactory System

   Author : Benjamin Auffarth; Anders Lansner; Tony Lindeberg; Tim Pearce; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; feature selection; image features; pattern classification; relevance; redundancy; distributional similarity; divergence measure; genetic algorithms; clustering algorithms; annealing; olfactory coding; olfactory bulb; odorants; glomeruli; property-activity relationship; olfaction; plasticity; axonal guidance; odor category; perception; spatial coding; population coding; memory organization; odor quality; SRA - ICT; SRA - Informations- och kommunikationsteknik;

   Abstract : This thesis deals with machine learning techniques for the extraction of structure and the analysis of the vertebrate olfactory pathway based on related methods. Some of its main contributions are summarized below. READ MORE

4. 2. Genetic Aspects of Sexual Selection and Mate Choice in Salmonids

   Author : Lars Forsberg; Mats Grahn; Jacob Höglund; Claus Wedekind; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biology; mate choice; Mhc; Major histocompatibility complex; class IIB; disassortative; assortative; microsatellite; outbreeding; supportive breeding; population; population genetics; Biologi; Biology; Biologi;

   Abstract : The long-term genetic consequences of supportive breeding programs are not well understood. Nevertheless, stocking populations with hatchery-produced fish to compensate for losses of natural production are common practice, for example after constructions of hydroelectric power dams. READ MORE

5. 3. Population Genetics of Human Genomic Elements

   Author : Thijessen Naidoo; Mattias Jakobsson; Guillaume Achaz; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; population genetics; human genome; functional elements; natural selection; pseudogenes; loss-of-function; gene regulation; Y chromosome; Biology with Specialisation in Human Evolution and Genetics; Biologi med inriktning mot människans evolution och genetik;

   Abstract : The genomes of living organisms are composed of a multitude of functional units, which interact with each other and their environment in a highly regulated fashion, to facilitate the expression of an enduring (and evolving) phenotype. Several approaches have emerged in the effort to identify these functional units and explore their activities. READ MORE

6. 4. Small non-coding RNA in early fly development : plasticity, interactions and improved bioinformatic tools

   Author : Lovisa Örkenby; Anita Öst; Rashmi Ramesh; Daniel Nätt; Nicola Iovino; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Drosophila; Maternal-to-zygotic transition; sncRNA; miRNA; piRNA; Embryogenesis; Zygotic gene activation;

   Abstract : At fertilization, the male and female pronuclei undergo a transformation from germline to pluripotency as they fuse, marking the beginning of Drosophila embryogenesis. As the parental contributions decrease, the zygote takes control of its genome in a process called the maternal-to-zygotic transition (MZT). READ MORE

7. 5. Neurospora tetrasperma from Natural Populations : Toward the Population Genomics of a Model Fungus

   Author : Pádraic Corcoran; Hanna Johannesson; Sylvain Glemin; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Neurospora; poulation genetics; genomes; introgression; Evolutionary Genetics; Evolutionär genetik;

   Abstract : The study of DNA sequence variation is a powerful approach to study genome evolution, and to reconstruct evolutionary histories of species. In this thesis, I have studied genetic variation in the fungus Neurospora tetrasperma and other closely related Neurospora species. I have focused on N. READ MORE