Visar resultat 1 - 5 av 795 avhandlingar innehållade ordet conservation.
Sammanfattning : Conservation laws play an important role in science. The aim of this thesis is to provide an overview and develop new methods for constructing conservation laws using Lie group theory. The derivation of conservation laws for invariant variational problems is based on Noether’s theorem. LÄS MER
Sammanfattning : Small populations are facing a particular risk of extinction due to a lack of appropriate genetic diversity and associated negative effects, factors dealt with in the discipline of conservation genetics. Many orchid species exhibit characteristics that make them a perfect study object in the scope of conservation genetics. LÄS MER
3. Pastoralists, Mobility and Conservation : Shifting rules of access and control of grazing resources in Kenya's northern drylands
Sammanfattning : Pastoral mobility is seen as the most effective strategy to make use of constantly shifting resources. In northern Kenya, mobile pastoralism as a highly-valued strategy to manage grazing areas and exploit resource variability is becoming more complex. LÄS MER
Sammanfattning : Ett stort antal utrotningshotade djurarter ingår idag i bevarandeprogram världen över. Små populationer hålls då i skyddade miljöer, exempelvis i djurparker, och i många fall är målet att återintroducera djur till naturen. LÄS MER
Sammanfattning : AbstractThis work is an investigation into the state-of-the-art of architectural conservation, from an international and interdisciplinary perspective. It explores issues, methodologies, and tools applicable to heritage resource assessments - from an architectural conservators point of view - and its aim is to generate appropriate approaches, methodologies and tools to holistically assess both the tangible and intangible aspects of significant architecture from the past. LÄS MER