This study explored park visitors' preferences for scenic vistas at Crater Lake
National Park, and whether their scenic evaluations would be affected if water levels
of Crater Lake changed. Three main areas were addressed in the study. The first tested park visitors' ability to perceive differences in the level of...
Experiments on a novel, microscale hydrogen combustor heat exchanger (µCHX) are presented in this thesis. The µCHX has been designed to efficiently transfer thermal energy to a heat transfer fluid for use in desorption of hydrogen from a metal hydride storage system of a hydrogen-powered fuel cell vehicle. The experimental...
Flow homogenization, the removal of natural flow events such as floods and droughts, can be detrimental to the functioning of riverine habitats. In rivers with beaver (Castor canadensis), flow homogenization can facilitate unchecked beaver dam construction due to lack of dam removal from floods, leading to physical effects such as...
Vibrio coralliilyticus (Vcor) is a bacterial pathogen that is well adapted to shellfish hatcheries and is very pathogenic to the larvae of the Pacific oyster Crassostrea gigas. Vcor has been associated with several large scale larval mortality events in the Pacific Northwest that interrupt the supply of seed oysters available...
Dipterans of the family Ephydridae (shore and brine flies) are well
known for their ability to tolerate and thrive in a wide variety of
physically harsh circumstances. The immature stages of one such species
of this family, Ephydra hians, are characteristically limited in
distribution as benthic inhabitants of highly alkaline...
Seasonal abundance and life history traits were compared between populations of the brine fly Ephydra (Hydrokyrus) hians Say (Diptera:Ephydridae), from two western Great Basin alkaline salt lakes. Abert Lake, Oregon, has a relatively low salinity (20-30 g/1 total dissolved solids) and more co-inhabitant benthic species than the higher salinity Mono...
The purpose of this study was to investigate whether
clothing influenced perceptions of personality
characteristics often associated with success in business
environments. Specifically, the study investigated the
effect of clothing on (a) perceptions of task-oriented
abilities of employees in a business setting, (b)
perceptions of relationship-oriented abilities of employees
in...
Numerous natural and anthropogenic chemicals interact with endocrine systems of
animals. The most widely studied of these endocrine active chemicals (EACs) are
estrogen receptor agonists and antagonists. Because of the many important roles of
estrogens in animals, xenoestrogens have the potential to impact environmental health. It
has been proposed that...
In this study methods were developed for the prediction of wave
conditions that are hazardous to navigation at river entrances, with
emphasis on applicability to the Columbia River. There are two basic
components to the prediction system: (1) a semi-automated spectral
method for forecasting the significant height and average period...
