Sökning: "Fågel"
Visar resultat 1 - 5 av 27 avhandlingar innehållade ordet Fågel.
1. Fågel, fisk eller förundran? : En studie av förhållningssätt i existentiella frågor, baserad på uppsatser skrivna på ett mångkulturellt vuxengymnasium
Sammanfattning : Fågel, fisk eller förundran? A study of existential attitudes based on essays written in a multicultural upper secondary school for adults The aim of this study is to survey and interpret outlooks on life as expressed in 175 essays written (1999-2001) in a multicultural Swedish suburb by adult students learning Swedish, Swedish as a Foreign Language, and Philosophy. What are the recurring themes in these essays? How do they reflect the fundamental existential problems of their authors? The theoretical background rests on existential hermeneutics with Sartre (1943, 1946, 1984) as the most important philosophical source. LÄS MER
2. Bird orientation: external cues and ecological factors
Sammanfattning : Birds are generally capable of accurate orientation. In this thesis I present studies about the external cues and the ecological factors that influences bird orientation. A multitude of environmental cues are used to select and maintain a proper direction. LÄS MER
3. Spatial Vision in Birds: Anatomical investigation of spatial resolving power
Sammanfattning : Avian eyes are big both in relative and absolute terms, thus the importance of vision to birds is obvious. Even though the general eye plan is rather conservative throughout the group, there is a great variation in visual capabilities. LÄS MER
4. On Calibration of Ground Sensor Networks
Sammanfattning : Sensor networks are everywhere around us. Developments in sensor technology and advances in hardware miniaturization open up brand-new application areas. In the future networks of cheap and small sensor nodes will be deployed for a variety of purposes. LÄS MER
5. Food hoarding: Memory and social conditions - an evolutionary approach
Sammanfattning : Food hoarding is a widespread behavior among a large number of animals, and it exists in several different varieties, all of them used by the animals as a method of having a steady supply of food during periods of low food abundance such as the winter. This thesis concentrates mainly on two aspects of scatter food hoarding behavior, using small birds as study and model animals. LÄS MER