Search for dissertations about: "natural behaviour"

Showing result 1 - 5 of 1246 swedish dissertations containing the words natural behaviour.

  1. 1. Aggressive behaviour between territorial cichlid fish and its regulation

    Author : Anders Fernö; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; behaviour; animal; fishes; Djursociologi; fiskar;

    Abstract : .... READ MORE

  2. 2. Dog behaviour : Intricate picture of genetics, epigenetics, and human-dog relations

    Author : Ann-Sofie Sundman; Lina Roth; Per Jensen; Zsófia Virányi; Linköpings universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Dogs, Canis familiaris, share the lives of humans all over the world. That dogs, and the behavior of dogs, are of interest to many is therefore no surprise. In this thesis, the main aim has been to identify factors that affect dogs’ behaviours.The dog, Canis familiaris, is our first domesticated animal. READ MORE

  3. 3. Static and time-dependent mechanical behaviour of preserved archaeological wood : Case studies of the seventeenth century warship Vasa

    Author : Alexey Vorobyev; Kristofer Gamstedt; Eiichi Obataya; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; archaeological wood; compression test; cubic samples; elastic constants; oak wood; barrelling formation; quasi-static loading; resonant ultrasound spectroscopy RUS ; Vasa ship; creep; 3D laser scanning; Time-dependent behaviour;

    Abstract : Wooden objects have been widely used in the history of humanity and play an important role in our cultural heritage. The preservation of such objects is of great importance and can be a challenging task. This thesis investigates the static and time-dependent mechanical behaviour of archaeological oak wood from the Vasa warship. READ MORE

  4. 4. Selective serotonin re-uptake inhibitors in the environment : Effects of citalopram on fish behaviour

    Author : Martin Kellner; Håkan Olsén; Inger Porsch-Hällström; Magnus Breitholtz; Södertörns högskola; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Citalopram; SSRI; stickleback; Baltic; behaviour; fish; feeding; anxiety; boldness; serotonin; development; Storspigg; serotonin; östersjön; SSRI; läkemedel; miljö; citalopram; ätbeteende; beteende; utveckling; Environmental Studies; Miljövetenskapliga studier; Östersjö- och Östeuropaforskning; Baltic and East European studies;

    Abstract : Selective serotonin re-uptake inhibitors (SSRIs) are a class of anxiolytic and anti-depressant drugs. SSRIs act on the evolutionarily ancient serotonergic system which is virtually identical throughout the vertebrate phylum. READ MORE

  5. 5. Brain Aromatase in the guppy, Poecilia reticulata : Distribution, control and role in behaviour

    Author : Stefan Hallgren; Håkan Olsén; Bertil Borg; Julie Bakker; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; Oestrogen production; behaviour; anatomy; endocrinology; bio markers; endocrine disruption; Organism biology; Organismbiologi; Functional Zoomorphology; funktionell morfologi; Biology; Biologi;

    Abstract : Oestrogens are produced by aromatisation of androgens by the aromatase enzyme. In the vertebrate brain this synthesis has vital functions in nerve protection, cell proliferation and nerve development during injury respectively brain development. READ MORE