Search for dissertations about: "ants"

Showing result 1 - 5 of 25 swedish dissertations containing the word ants.

  1. 1. On respiratory system mechanics in ventilated newborn infants

    Author : Ants Silberberg; Chalmers University of Technology; []
    Keywords : respiratory function test; compliance; very low birthweight infant; respiratory mechanics; lung mechanical model; endotracheal tube resistance; respiratory distress syndrome; newborn; alveolar gas compression; whole body pletysmography; resistance;

    Abstract : .... READ MORE

  2. 2. Phylogeographic Structure and Genetic Variation in Formica Ants

    Author : Anna Goropashnaya; Pekka Pamilo; David Bilton; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Genetics; Formica ants; phylogeography; phylogeny; Pleistocene refugia; population expansion; social organization; Genetik; Clinical genetics; Klinisk genetik;

    Abstract : The aim of this thesis is to study phylogeny, species-wide phylogeography and genetic diversity in Formica ants across Eurasia in connection with the history of biotic responses to Quaternary environmental changes.The mitochondrial DNA phylogeny of Palaearctic Formica species supported the subgeneric grouping based on morphological similarity. READ MORE

  3. 3. Evolution of symbiotic lineages and the origin of new traits

    Author : Daniel Tamarit; Siv G. E. Andersson; Lisa Klasson; Amparo Latorre; Julian Parkhill; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; symbiosis; host-association; Lactobacillus; Bifidobacterium; Rhizobiales; Bartonella; honeybees; ants; codon usage bias; genome architecture; genome organization; gene transfer agent; evolutionary genomics; comparative genomics; Biologi med inriktning mot molekylär evolution; Biology with specialization in Molecular Evolution; Biology with specialization in Evolutionary Genetics; Biologi med inriktning mot evolutionär genetik; Biologi med inriktning mot mikrobiologi; Biology with specialization in Microbiology;

    Abstract : This thesis focuses on the genomic study of symbionts of two different groups of hymenopterans: bees and ants. Both groups of insects have major ecological impact, and investigating their microbiomes increases our understanding of their health, diversity and evolution. READ MORE

  4. 4. Modelling collective movement and transport network formation in living systems

    Author : Arianna Bottinelli; David Sumpter; Renaud Lambiotte; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; animal collective behaviour; transport networks; crowd dynamics; complex systems; ants; fish; Tillämpad matematik och statistik; Applied Mathematics and Statistics;

    Abstract : The emergence of collective patterns from repeated local interactions between individuals is a common feature to most living systems, spanning a variety of scales from cells to animals and humans. Subjects of this thesis are two aspects of emergent complexity in living systems: collective movement and transport network formation. READ MORE

  5. 5. From Ants to Service Robots : an Exploration in Stigmergy-Based Navigation Algorithms

    Author : Ali Abdul Khaliq; Alessandro Saffiotti; Federico Pecora; Andrea Omicini; Örebro universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Stigmergy; Minimalistic Robots; Mobile robot navigation; RFID technology; Multi-robot system; Path planning; Localization; Map building;

    Abstract : Navigation is a core functionality of mobile robots. To navigate autonomously, a mobile robot typically relies on internal maps, self-localization, and path planning. Reliable navigation usually comes at the cost of expensive sensors and often requires significant computational overhead. READ MORE