Search for dissertations about: "swim"

Showing result 16 - 20 of 34 swedish dissertations containing the word swim.

  2. 16. Attraction channel as entrance to fishways

    Author : Elianne Wassvik; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Abstract : The utilization of rivers for hydropower production leads to problems for fish migration. Migratory fish that swim upstream for reproduction need to overcome obstructions to reach their spawning grounds. On their way upstream they follow high water velocities. READ MORE

  4. 17. Idioms Unlimited. A study of non-canonical forms of English verbal idioms in the British National Corpus

    Author : Elisabeth Gustawsson; Göteborgs universitet; []
    Keywords : HUMANIORA; HUMANITIES; English; idiom; corpus; transparency; isomorphicity; modification; derivation; permutation; non-canonical; figurative;

    Abstract : The study is a corpus-based investigation of the semantic, lexical, and grammatical flexibility of English verbal idioms, focusing on qualitative analyses of examples of current British English usage. 300 verbal idioms - i.e. idioms that consist of a verb and a complement, e. READ MORE

  5. 18. Modelling depression in animals and the potential antidepressant effect of histaminergic modulation

    Author : Salvatore Magara; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Depression is at the top position for "years lived with disability" (Smith, 2014). Its aetiology is unknown, but the pathogenesis implicates changes in glutamatergic neuronal plasticity. Glutamatergic plasticity likely mediates the effects of antidepressants acting through monoamines. READ MORE

  6. 19. Plumage Colours and the Eye of the Beholder : The Ecology of Colour and its Perception in Birds

    Author : Olle Håstad; Mats Björklund; Innes Cuthill; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; ultraviolet; colour vision; opsin; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Abstract : Virtually all diurnal birds have tetrachomatic vision based on four different colour receptors. As a result, birds are potentially able to perceive their environment in twice as many colours as humans and four times as many colours compared to most other mammals, which are dichromatic. READ MORE

  7. 20. Flow design for migrating fish

    Author : Elianne Lindmark; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Abstract : The utilization of rivers for hydropower production leads to problems for migrating fish, such as Atlantic salmon (Salmo salar) and sea trout (Salmo trutta). Both salmon and trout reproduce in fresh water, but spend their adult years at sea. To overcome man-made obstructions to and from the spawning grounds the fish needs help. READ MORE