Search for dissertations about: "nocturnal"
Showing result 1 - 5 of 94 swedish dissertations containing the word nocturnal.
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1. There and Back Again - nocturnal migratory behaviour of birds during spring and autumn
Abstract : This dissertation explores the migratory behaviour of nocturnally migrating passerines and common swifts (Apus apus). Birds passing Lund (southern Sweden) and Abisko (northernmost Scandinavia) where sampled using tracking radar. The aim has been to investigate potential diverging strategies between spring and autumn migration. READ MORE
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2. Nocturnal enuresis and rapid maxillary expansion : – long-term effect, prognostic variables, respiration during sleep and quality of life
Abstract : Background:The orthodontic technique rapid maxillary expansion (RME) has been reported to have a potentially curative effect on nocturnal enuresis (NE). The mechanism behind this is unknown but could possibly be due to placebo and/or effects on respiration during sleep. READ MORE
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3. Ommatidial adaptations for vision in nocturnal insects
Abstract : Nocturnal vision is a demanding task for insects with small eyes. As it gets dimmer the noise imposed by the stochastic nature of photon arrival makes vision unreliable. Despite this, there are quite a number of animal species that are active at night and apparently see well. READ MORE
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4. Flight Behaviour of Passerines on Nocturnal Migration
Abstract : Many passerines migrate during the night and at high altitudes, making their migration difficult to observe. By using tracking radars we have been able to make exact observations of the flight behaviour of passerines on nocturnal migration, which has enabled us to test several hypotheses about adaptive values and constraints regarding migratory behaviour in different ecological contexts. READ MORE
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5. The bladder and the brain : Studies on the pathogenesis and the treatment of nocturnal enuresis
Abstract : Opinions differ as to whether nocturnal enuresis is caused by high arousal thresholds, nocturnal polyuria or nocturnal bladder instability. In spite of the currently available therapeutic options - the antidiuretic drug desmopressin and alarm treatment - approximately 25% of children suffering from enuresis cannot be successfully treated. READ MORE