Sökning: "Crossing barriers"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden Crossing barriers.

  1. 1. Geographic Variation, Hybridization and Evolution in the Bladder Campions, Silene vulgaris and S. uniflora (Caryophyllaceae)

    Författare :Eva Månsby; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; chemotaxonomy. Physiology of nonvascular plants; Systematisk botanik; Växtgenetik; Systematic botany; taxonomy; morphology; phytogeography; Plant genetics; Paternal effects; Seed polymorphism; Ecology; Ekologi; Crossing barriers; cpDNA markers; Genetic variation; Hybridization; Post-glacial migration; Allozymes; Silene vulgaris; Silene uniflora; taxonomi; morfologi; kemotaxonomi. Växters fysiologi inte kärlväxter .;

    Sammanfattning : In the present thesis, I investigated the inter- and intraspecific variation in the Silene vulgaris/uniflora species-complex (the bladder campions). I have focused on the effects of past and present hybridization both on a large scale ? over the whole of Europe ? and on a local scale. Silene vulgaris and S. LÄS MER

  3. 2. Crossing barriers: Genetic consequences of translocating wild cleaner fish for aquaculture

    Författare :Ellika Faust; Göteborgs universitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; conservation genetics; population genetics; aquaculture escapee; hybridisation; corkwing wrasse; lumpfish; cleaner fish translocation; sea lice; range expansion; fishery management;

    Sammanfattning : Several species of fish show a symbiotic cleaning behaviour, where they assist other species by feeding and removing dead skin or ectoparasites. Some of these cleaner fish species are used as a low-cost parasite control in salmon aquaculture, often considered to be more environmentally friendly than other delousing methods. LÄS MER

  4. 3. Transmigration of Toxoplasma gondii across biological barriers

    Författare :Emily C. Ross; Antonio Barragan; Ildiko Rita Dunay; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Apicomplexa; blood-brain barrier; leukocyte; immune cell; transendothelial migration; cell adhesion molecule; host-pathogen; FAK; integrin; molekylär biovetenskap; Molecular Bioscience;

    Sammanfattning : Toxoplasma gondii is an obligate intracellular parasite that can likely infect all warm-blooded vertebrates, with estimates of up to 30% of the global human population being infected. Although infection with T. gondii is usually asymptomatic or mild, in immunocompromised individuals infection can lead to lethal toxoplasmic encephalitis. LÄS MER

  5. 4. Crossing the river by feeling the stones : Approaches to Sustainable Urban Development in China

    Författare :Hongling Liu; Björn Frostell; Dick Urban Vestbro; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : China already has the highest numbe of,and largest cities in its history. According to recent statistics, Chinese cities were home to 52.6% of China’s total population at the end of 2012. LÄS MER

  7. 5. Discovering the capabilities of ageing persons who are born abroad: crossing norms, moving health promotion forward

    Författare :Qarin Lood; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Emigration and immigration; Delivery of health-care; Implementation; Inequities; Health; Mixed-methods; person-centredness;

    Sammanfattning : To improve the possibilities for the whole population to take control over their health is an important goal for health promotion and public health. Yet, with improved possibilities for international migration and extended life spans, there are more and more people who are considered less capable to reach such a goal. LÄS MER