Search for dissertations about: "Head hunting"

Found 5 swedish dissertations containing the words Head hunting.

  2. 1. Birds in the Flow: Flight Mechanics, Wake Dynamics and Flight Performance

    Author : Mikael Rosén; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Djurekologi; Animal ecology; Eleonora s falcon.; hunting; optimum wingspan; tail posture; wingbeat kinematics; wake topology; DPIV; flight performance; wake dynamics; flight mechanics; wind tunnel; Flight; bird;

    Abstract : I share my fascination of bird flight with many others, and here I summarise my thesis on the subject. This thesis emphasises the mechanics of bird flight by focusing on flight mechanics, wake dynamics and flight performance. READ MORE

  4. 2. Morphological antipredator adaptations in water fleas

    Author : Hans Lord; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Body drag; Daphnia cristata; Reynolds number; viscosity; zooplankton; Bosmina; swimming velocity; cyclomorphosis; sexual dimorphism; head area; helmet angle; trophic condition; allometry; invertebrate predator; fish;

    Abstract : Some Bosmina and Daphnia species have the ability to develop extreme morphological antipredator defences, such as long antennules, high carapaces and helmets. The relative sizes of these plastic traits may differ substantially between populations, and also between individuals within a population, between sexes and during ontogeny. READ MORE

  5. 3. Hunting the end of the rainbow : prognostic biomarkers and human papillomavirus in tonsillar and base of tongue cancer

    Author : Nikolaos Tertipis; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Aim: The aim of this thesis was to hunt for additional prognostic biomarkers in HPV positive TSCC and BOTSCC to identify patients that could if they wished, be enrolled in clinical trials for de-escalation of treatment. Background. READ MORE

  6. 4. Attacking predators and fleeing prey : detection, escape and targeting behaviour in birds

    Author : Ulrika Kaby; Innes Cuthill; Stockholms universitet; []
    Keywords : zoology; ethology; birds; animal behaviour;

    Abstract : The aim of this thesis is to further our understanding of predator and prey behaviour and decision making in different attack situations. The thesis deals with escape strategies, predator detection ability and prey targeting behaviour. READ MORE

  7. 5. Visual ecology of insect superposition eyes

    Author : Pär A Brännström; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Animal physiology; tiger beetle; hawkmoth; mayfly; insect; visual ecology; eye design; vision; compound eye; Djurfysiologi;

    Abstract : In the superposition compound eye each rhabdom (light sensitive unit) receives light through many ommatidial facets, while in the apposition compound eye every rhabdom receives light from a single facet. The superposition design increases photon capture, which is an advantage in dark environments. READ MORE