Search for dissertations about: "great depression"

Showing result 16 - 20 of 79 swedish dissertations containing the words great depression.

2. 16. Dispersal, inbreeding and fitness in natural populations

   Author : Bengt Hansson; MEMEG; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; immigration; inbreeding; inbreeding depression; heterozygosity; microsatellite; great reed warbler; bird; Djurekologi; Animal ecology; philopatry; heritability; founder event; dispersal; bottleneck;

   Abstract : To evaluate how inbreeding affects the viability of small populations, it is crucial to determine what constitutes a population (i.e., the number of breeders in local patches and the degree of dispersal), and also to estimate the reproductive consequences of philopatry and emigration. READ MORE

4. 17. The treatment of depression in clinical practice : a public health perspective

   Author : Svante Henriksson; Karolinska Institutet; Karolinska Institutet; []
   Keywords : Depression; treatment of depression; antidepressant medication; public health;

   Abstract : Depression is a major public health problem with a reported point prevalence of 5%. Depressive illness causes great suffering and disability. Effective treatment with antidepressant drugs has been available for more than 40 years. READ MORE

5. 18. Effect of pharmacological treatment of serotonergic function in depression

   Author : Aram El Khoury; Karolinska Institutet; Karolinska Institutet; []
   Keywords : Sertonin depression; platelets; HPA-axis; intracellular calcium; lithium; SSRI NRI;

   Abstract : Since its identification in raphe neurons of the central nervous system (CNS), the biogenic amine serotonin (5- hydroxytryptamin, 5-HT) has been implicated in the etiology and pathophysiology of affective disorders, such as depression. It has been proposed that enhancement of central serotonergic transmission may underlie the therapeutic response to different types of antidepressant drugs. READ MORE

6. 19. Depression among adolescents and young adults : social and gender differences

   Author : Therese Wirback; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : Depression is a large public health problem that has a negative impact on many aspects of life. Among adolescents and young adults it is the leading cause of disability-adjusted life years. Many different factors can be expected to play a role in its development, such as biology, physical disease, gender, and psychosocial and socioeconomic factors. READ MORE

7. 20. Genetic variation, polyploidy and hybridization in Scandinavian Anthericum ramosum and A. liliago (Anthericaceae)

   Author : Gabrielle Rosquist; Biologiska institutionen; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Systematic botany; inbreeding depression; gene flow; introgression; hybridization; morphology; isozyme; allozyme; allele frequencies; population fragmentation; genetic diversity; geographic variation; Anthericum; Allopolyploidy; taxonomy; phytogeography; chemotaxonomy. Physiology of nonvascular plants; Systematisk botanik; taxonomi; morfologi; kemotaxonomi. Växters fysiologi inte kärlväxter .;

   Abstract : In this thesis, I investigate the differences in breeding system, levels of genetic variation and hierarchical structure of genetic diversity between Anthericum ramosum and A. liliago. The two species differ in ploidy level and flowering time, but have similar habitat preferences, reproductive biology and geographic distributions in Scandinavia. READ MORE