Search for dissertations about: "Zoology"

Showing result 1 - 5 of 513 swedish dissertations containing the word Zoology.

  1. 1. Celestial Orientation in Dim Light

    University dissertation from Marie Dacke, Deparment of Cell and Organism Biology, Lund University

    Author : Marie Dacke; Lund University.; Lunds universitet.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; polarisation pattern; moon; polrised light detection; twilight; dim light; dung beetle; Zoologi; spider; vision; orientation; Zoology;

    Abstract : The polarization pattern of skylight offers many animals a reference for visual compass orientation. In those cases when this optical compass is identified, the receptors involved are often confined to a small part of an eye built predominantly for other visual tasks. READ MORE

  2. 2. There and back again : The neural basis of migration in the Bogong moth

    University dissertation from Lund

    Author : Andrea Adden; Lund University.; Lunds universitet.; [2020-01-03]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The Bogong moth (Agrotis infusa) is a small, night-active Australian moth that has a remarkable lifestyle. Afterhatching from its pupa in spring, it migrates over 1000 km to the Australian Alps, where it spends the summer incool alpine caves. READ MORE

  3. 3. Cardiovascular and respiratory effects of apnea in humans

    University dissertation from Animal Physiology

    Author : Johan Andersson; Lund University.; Lunds universitet.; [2001]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; lung volume; breath-hold diving; Apnea; breath-holding; face immersion; cold stimulation; diving response; diving reflex; circulation; bradycardia; vasoconstriction; arterial blood pressure; cardiac output; spleen; respiration; splenic contraction; alveol; Physiology; Fysiologi; Respiratory system; Andningsorganen; Animal physiology; Djurfysiologi;

    Abstract : This thesis deals with cardiovascular and respiratory effects of apneas in humans. During apnea (breath-holding), a number of interacting cardiovascular reflexes are initiated, and together these reflexes are called the “diving response”. READ MORE

  4. 4. On the way of making plants smell like moths - a synthetic biology approach

    University dissertation from Lund University, Faculty of Science, Department of Biology

    Author : Bao-Jian Ding; Lund University.; Lunds universitet.; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; moth pheromone; transcriptome; fatty acyl desaturase; fatty acyl reductase; acetyltransferase; chain shortening; chain elongation; heterologous expression; synthetic biology; plant expression;

    Abstract : Moth caterpillars are major agricultural pests in many parts of the world. In general female moths attract male mates with their pheromone over long distance. Most of the described moth pheromones belong to the same class of chemical compounds, fatty acid derivatives that are produced de novo in the pheromone gland. READ MORE

  5. 5. Studies on Peripheral Nerve Regeneration: Microdispensing, Neurite Guidance and Galectins

    University dissertation from Department of Cell and Organism Biology, Lund University

    Author : Per Gustavsson; Lund University.; Lunds universitet.; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; vävnadskultur; histokemi; cytokemi; Histologi; tissue culture; histochemistry; cytochemistry; Histology; Schwann cells; sciatic nerve; dorsal root ganglia; DRG; neurite guidance; galectins; inkjet; microdispensing; peripheral nervous system; nerve regeneration; Animal physiology; Djurfysiologi; Biotechnology; Bioteknik;

    Abstract : The present thesis describes development of a microdispenser-based technique to create of protein patterns for neurite guidance. The same technique was also developed to allow direct positioning of dissociated cells, including neurons, on cell culture substrates. Finally the role of galectin-3 and 8 during nerve regeneration was investigated. READ MORE