Sökning: "spatial dependence"
Visar resultat 21 - 25 av 137 avhandlingar innehållade orden spatial dependence.
21. Characterization and Clinical Application of Normoxic Polymer Gel in Radiation Therapy Dosimetry
Sammanfattning : Cancer is one of the main causes of death in the world, particularly in developing countries and is considered as a major public health problem. Radiation therapy has been an important modality for treatment of cancer for many decades. LÄS MER
22. Free Metal Clusters Studied by Photoelectron Spectroscopy
Sammanfattning : Clusters are aggregates of a finite number of atoms or molecules. In the present work, free clusters out of metallic parent materials have been created and studied by synchrotron radiation-based photoelectron spectroscopy. The clusters have been formed and studied in a beam and the electronic structure of the clusters has been investigated. LÄS MER
23. Bee foraging and pollination : Consequences of spatial and temporal variation in flower resources
Sammanfattning : Wild bees foraging in contemporary agricultural landscapes are, because of agricultural intensification, faced with the challenges of reduced flower-rich habitats, as well as a changed spatio-temporal distribution of flower resources. As a result of this and other stressors such as pesticide exposure, widespread declines of bees have been reported. LÄS MER
24. Large grazing birds and crop damage : investigating spatial and temporal patterns to guide management practices
Sammanfattning : Populations of geese, swans and cranes (i.e., large grazing birds) are increasing in Europe and North America, raising conflicts between conservation and farming interests when, foraging in agricultural fields (often in the vicinity of wetlands), cause yield loss for farmers. LÄS MER
25. Mapping social-ecological systems and human well-being : A spatial exploration of the links between people and the environment in South Africa
Sammanfattning : It has become increasingly clear that dealing with present day environmental crises requires a holistic view that takes into account the interactions of social and ecological factors across multiple spatial and temporal scales. An example of where this new paradigm is being operationalized is the study of social-ecological systems. LÄS MER
