The specific objectives of this dissertation are to determine subsurface flow
behaviors across different antecedent wetness conditions from a top-down perspective
and to mechanistically assess the hydrological controls on DOC and N transport at the
hillslope and catchment scale. The study area is a small catchment where hillslopes
issue directly...
Although endothermy is one of the most significant evolutionary developments in the vertebrates, its origins among extinct taxa have traditionally been difficult to determine. Endothermy is primarily an attribute of the "soft anatomy," and its key features, such as complex lungs, elevated blood oxygen carrying capacity and mitochondrial density, do...
Dynamic seascapes, which are classified using a combination of remotely sensed data and model output, represent a potential tool for dynamic ecosystem-based management in marine systems. This work explores the utility of seascape classification in the context of marine resource management by examining two case studies: one involving biological relationships...
A detailed cost analysis was performed on 111 U.S. Forest Service campgrounds in the Pacific Northwest (Region 6). Five experience levels were analyzed to estimate facility, operation and maintenance, and opportunity costs. Cost functions, estimated by multiple linear regression analysis to predict the effect of size (number of sites) and...
This dissertation re-examines the now standard perceptual model of hillslope
hydrological response to rainfall, which includes the growth of a saturated wedge at the soil-bedrock interface or impeding layer. It also challenges the notion of bedrock impermeability and the assumption that the pattern of subsurface stormflow is determined by the...
Epidemics of infectious diseases often occur in predictable limit cycles. Theory suggests these cycles can be disrupted by high amplitude seasonal fluctuations in transmission rates, resulting in deterministic chaos. However, persistent deterministic chaos has never been observed, in part because sufficiently large oscillations in transmission rates are uncommon. Where they...
Full Text:
Transmission
Patterns
Benjamin D. Dalziel1¤, Ottar N. Bjørnstad2, Willem G. van Panhuis3, Donald S. Burke4, C
This research examines the relationship between health literacy among End Stage Renal Disease (ESRD) patients and its relevance for communication between patients and providers. The study was conducted among dialysis services providers at the Good Samaritan Dialysis Center and dialysis patients receiving care at the Center. Data collection techniques included...