Sökning: "Total population"

Visar resultat 11 - 15 av 1328 avhandlingar innehållade orden Total population.

1. 11. Population processes in heterogeneous landscapes

   Författare :Lars Westerberg; William Fagan; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Population processes in heterogeneous landscapes are notoriously difficult to study, both empirically and theoretically. There are well-documented effects of scale (both total size and resolution of the system), density dependence, temporal and spatial variation, as well as effects of habitat-shape, -boundary and -edge. LÄS MER

3. 12. Effects of Great Cormorant Predation on Fish Populations and Fishery

   Författare :Henri Engström; Sture Hansson; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Developmental biology; Great Cormorant; Phalacrocorax carbo sinensis; predation; population regulation; diet; diet preferences; eel; behavioural responses; bird-fishery conflicts; Utvecklingsbiologi; Developmental biology; Utvecklingsbiologi; populationsbiologi; Population Biology;

   Sammanfattning : The strong increase in number of Great cormorants Phalacrocorax carbo in Sweden in recent years has led to conflicts - particularly with fishery. This thesis focuses on the possible effects of cormorant predation on fish populations. LÄS MER

4. 13. Data-driven analysis of water and nutrient flows: Case of the Sava River Catchment and comparison with other regions

   Författare :Lea Levi; Vladimir Cvetkovic; Georgia Destouni; Roko Andričević; Ronny Berndtsson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; River catchment; Transboundary; Hydro-climatic change; Total nitrogen; Total phosphorus; CMIP5; Land and Water Resources Engineering; Mark- och vattenteknik;

   Sammanfattning : A growing human population and demands for food, freshwater and energy are causing extensive changes in the water and biogeochemical cycles of river catchments around the world. Addressing and investigating such changes is particularly important for transboundary river catchments, where they impose additional risk to a region’s stability. LÄS MER

5. 14. Tourette Syndrome and Tic Disorders in a Swedish School Population : Prevalence, Clinical Assessment, Background, Psychopathology, and Cognitive Function

   Författare :Najah Khalifa; Anne-Liis von Knorring; Claes Sundelin; Elisabeth Fernell; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Child and adolescent psychiatry; Tourette syndrome; tic disorders; population study; psychopathology; heredity; perinatal complications; cognitive function; Barn- och ungdomspsykiatri; Child and adolescent psychiatry; Barn- och ungdomspsykiatri; Child and Youth Psychiatry; Barn- och ungdomspsykiatri;

   Sammanfattning : A total population of 4,479 children (7-15 years of age) attended school in Ludvika & Smedjebacken in 2000. All the school children and their parents were asked to fill in a questionnaire concerning different tics A three-stage procedure was used: tic identification, interview, and clinical assessment. LÄS MER

7. 15. Urinary incontinence and genital prolapse : A prospective population-based study

   Författare :Eva Samuelsson; Uppsala universitet; []
   Nyckelord :Medical sciences; female urinary incontinence; genital prolapse; prevalence; incidence; remission; determinants; well-being; wish for treatment; MEDICIN OCH VÅRD; MEDICINE; MEDICIN; Medicine; medicin;

   Sammanfattning : The aims of this study were to investigate the prevalence and possible determinants of urinary incontinence and genital prolapse and the natural course of urinary incontinence and its effect on well-being in a population-based sample of women aged 20 to 59 years. 491(77%) women participated in the baseline examination of a gynaecological health survey and 382 participated in a 5-year follow-up. LÄS MER