Sökning: "Seasonal variation"
Visar resultat 31 - 35 av 221 avhandlingar innehållade orden Seasonal variation.
31. Investigation of Mechanics of Mutation and Selection by Comparative Sequencing
Sammanfattning : The process of evolution is of both scientific and medical interest. This thesis presents several studies using complete genomic reference sequences, comparative genomic data, and intraspecific diversity data to study the two key processes of evolution: mutation and selection. LÄS MER
32. Interactions between climate, natural disturbances, and regeneration in boreal and hemi-boreal forests
Sammanfattning : Natural disturbance is an important driving force of community dynamics in many forest types around the globe. Understanding spatial and temporal properties of disturbance events in the present and in the past is important in formulating the nature conservation strategies as well as for the modeling of climate and human impacts on forest vegetation. LÄS MER
33. Data preparation, hydrodynamic and contaminant transport shallow-water simulations of Lake Victoria
Sammanfattning : This study explores shallow lake numerical hydrodynamic processes that support model development and validation, extreme events and effects of water circulation in Lake Victoria. Lake Victoria is the second largest freshwater lake in the world, and the largest in East Africa. LÄS MER
34. Clinical and Epidemiological Studies on Giant Cell Arteritis
Sammanfattning : Objectives: The aim of the research summarized in this thesis was to present a comprehensive view of the epidemiology of biopsy-confirmed GCA, investigate infection as a possible risk factor of GCA, and to assess the association of GCA with cancer and myocardial infarction.Methods: To establish incidence and prevalence, patients diagnosed with biopsy-confirmed GCA in Skåne, Sweden 1997–2019 were identified through the database of the pathology department of Region Skåne which serves the entire region. LÄS MER
35. Mercury cycling in the global marine environment
Sammanfattning : Mercury is a globally distributed contaminant that exists in the atmosphere in its elemental form as a stable monoatomic gas. Having a residence time of around one year in air allows it to be transported far from emission sources and end up in polar ecosystems. LÄS MER