This thesis deals with the archaeological investigations of an 1897-1898 gold rush
structure in the town of Dyea, Alaska. Little is known about this structure (Feature 96) from the historical records. A three year project was conducted to investigate Feature 96 in order to determine the function of the structure,...
Several types of solid-state inorganic materials are prepared and characterized. By using the SILAR (Successive Ionic Layer Adsorption and Reaction) deposition method in conjunction with hydrothermal dehydration both low-temperature deposition and crystallization of oxide thin films are achieved. Various aspects of new transparent p-type materials are studied by examining both...
New transparent p- and n-type semiconductors and luminescent materials have been prepared and characterized. Synthesis, structures, optical and electrical properties of new chalcogenide fluoride p-type transparent semiconductors MCuQF (M=Ba, Sr; Q=S, Se, Te) are described. Band-gap tuning and improvement in conductivity through p-type doping are demonstrated in the family. The...
Organellar DNA sequences are widely used in evolutionary and population genetic studies, however, the conservative nature of chloroplast gene and genome evolution often limits phylogenetic resolution and statistical power. To gain maximal access to the historical record contained within chloroplast genomes, we have adapted multiplex sequencing-by-synthesis (MSBS) to simultaneously sequence...
Oregon's only remaining non-reservoir population of adfluvial bull trout (Salvelinus confluentus) is found in Odell Lake, in the headwaters of the Deschutes River. The population size is unknown, but appears to be quite small. Limited spawning and rearing habitats, combined with the effects of introduced species and other anthropogenic changes...
Western forests have become increasingly fragmented landscapes dominated by young stands. Given that western Oregon forests largely consist of headwater systems, there is a need to better understand how headwater forest taxa and their habitats are impacted by forest management practices. Several amphibian species associated with forested headwater systems have...
Full dynamic control of physically simulated characters is the holy grail of video
games and other interactive applications. Recent advances in the field have
presented controllers that can handle the balance and fall response after a
collision. This thesis addresses the development of a controller that handles the
response before...
Crater Lake National Park presents an excellent opportunity for ecological research due to its relatively pristine landscape, the protection of its natural features, its infrastructure, and a Park administration supportive of scientific inquiry and restoration ecology. The research presented here examines the responses of fungi to various forms of perturbation....
This paper discusses research concerning redware vessel sherds found in an archaeological excavation at Oregon's historic Champoeg State Park, and comparative artifacts from four known Oregon and Washington late nineteenth pottery production sites. Visual and Instrumental Nuclear Activation Analysis comparison studies were conducted on samples from each site. The New...
The black-capped chickadee is a common North American bird.
Chickadees can be seen in small fields collecting seeds and insects. They
also feed at the edges of forests. These birds like to visit bird feeders.