Search for dissertations about: "Attraction"

Showing result 1 - 5 of 199 swedish dissertations containing the word Attraction.

  1. 1. Attraction and Rejection On the love–hate relationship between stars and black holes

    University dissertation from Stockholm : Department of Astronomy, Stockholm University

    Author : Emanuel Gafton; Stephan Rosswog; Tamara Bogdanović; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Astronomy; astronomi;

    Abstract : Solitary stars wandering too close to the supermassive black hole at the centre of their galaxy may become tidally disrupted, if the tidal forces due to the black hole overcome the self-gravity holding the star together. Depending on the strength of the encounter, the star may be partially disrupted, resulting in a surviving stellar core and two tidal arms, or may be completely disrupted, resulting in a long and thin tidal stream expected to fall back and circularize into an accretion disc (the two cases are illustrated on the cover of this thesis). READ MORE

  2. 2. Odour-mediated nectar foraging in the silver Y moth, Autographa gamma

    University dissertation from Chemical Ecology and Ecotoxicology, Department of Biology, Lund University

    Author : Dainius Plepys; [2001]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; predation risk; Noctuidae; Lepidoptera; flight tunnel; GC-EAD; single sensillum; sprayer; ultrasound; floral volatiles; attraction; foraging; mate-finding; lilac aldehydes; olfactory receptor neurones; Ecology; Ekologi; Chemistry; Kemi;

    Abstract : It is well established that floral odours play a significant role in the nectar foraging behaviour in Lepidoptera and other insect orders. Floral odour may elicit searching, alighting and feeding behaviours alone or in concert with visual stimuli. READ MORE

  3. 3. Movement patterns and displacement of a soil insect

    University dissertation from Elna Nilsson, Ekologihuset, Sölvegatan 37, 223 62 Lund

    Author : Elna Nilsson; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; attraction; repellence; fatty acid; Ecology; Ekologi; alarm; autoregressive model; autocorrelation; random walk; Protaphorura armata; Collembola; migration; dispersal; movement; displacement;

    Abstract : Movement and dispersal are important determinants of the spatial distribution and persistence of animal populations in a heterogeneous environment. I studied the small-scale movement pattern of a soil-living insect, Protaphorura armata (Collembola) by using a video-equipment. READ MORE

  4. 4. Neural Interfaces to the Odour World of Scarab Beetles

    University dissertation from Chemical Ecology and Ecotoxicology, Department of Biology, Lund University

    Author : Mattias Larsson; [2001]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Djurekologi; Animal ecology; Intra; Antennal lobe; CNS; Attraction; Olfactometer; Behaviour; Mass spectrometry; Gas chromatography; Electrophysiology; Single sensillum; Receptor neuron; Plant volatile; Sex pheromone; Neuroethology; Odour detection; Olfaction; Coleoptera; Scarabaeidae; Entomology; plant parasitology; Entomologi; växtparasitologi; Environmental chemistry; Miljökemi;

    Abstract : Antennal detection and central nervous integration of behaviourally relevant odours in scarab beetles (Coleoptera: Scarabaeidae) was investigated, using the two Japanese scarabs Anomala cuprea and Phyllopertha diversa (Rutelinae), and the Central African fruit chafer Pachnoda marginata (Cetoniinae) as model species. Electrophysiological single cell recordings in A. READ MORE

  5. 5. The Art of Pleasing the Eye Portraits by Nicolas de Largillierre and Spectatorship with Taste for Colour in the Early Eighteenth Century

    University dissertation from Stockholm : Department of Culture and Aesthetics, Stockholm University

    Author : Roussina Roussinova; Margaretha Rossholm Lagerlöf; Sabrina Norlander Eliasson; Tomas Björk; Martin Olin; [2015]
    Keywords : HUMANIORA; HUMANITIES; spectatorship; pleasure; meaning; body and mind; senses; illusion; imagination; touch; colour; attention; attraction; detail; display; portraiture; art theory; amateur; conversation; honnêteté; performativity; Nicolas de Largillierre; Roger de Piles; konstvetenskap; Art History;

    Abstract : This study examines the interaction between portraits by the exponent of French colourist painting Nicolas de Largillierre (1656–1745) and elite spectatorship in the early eighteenth century as enactment of the idea of painting as an art of pleasing the eye. As developed in the theory of art of Roger de Piles (1635–1709), the idea of painting as an art of pleasing the eye coexisted with the classicist view, which in turn emphasised the potential of painting to communicate discursive meanings and hence to engage the mind. READ MORE