Western redcedar (Thuja plicata Donn.) is a valuable commercial species found in
the northwestern United States and southwestern Canada. This dissertation includes four
papers focused on wood and stem characteristics of second-growth western redcedar, and
how those characteristics vary within the stem or how they are influenced by cultural
practices....
Persistent organochlorines (OCs) bioaccumulate in aquatic biota and potentially impair reproduction via endocrine disruption. The present research evaluated estrogenic effects of the OCs, chlordecone (CD) and o,p'-DDT/DDE, and the antiestrogenicity of 3,4,5,3',4',5'-hexachlorobiphenyl (345-HCB) in juvenile rainbow trout, utilizing vitellogenesis as a biomarker. Vitellogenesis, estrogen regulated hepatic production of the yolk...
Since the late 1880's western juniper has expanded in range and
increased in density in sagebrush-bunchgrass, riparian, and forested plant
communities of the Pacific Northwest. Succession to western juniper
woodland has been shown to reduce the productivity and diversity of the
understory component, result in concentration of soil nutrients beneath...
Error-correcting output coding (ECOC) is a method for converting a k-classsupervised learning problem into a large number L of two-class supervised learningproblems and then combining the results of these L evaluations. Previous researchhas shown that ECOC can dramatically improve the classi cation accuracy of supervisedlearning algorithms that learn to classify...
Water right marketing and transfers represent a resource reallocation
strategy that has received considerable attention in the American West owing to
nearly full appropriation of water in the region. Several western states permit
transfers between different uses and places of use thus allowing water to move to
higher-value economic activities....
Since the eruption of Mount St. Helens on May 18,1980, the rural communities within its shadow have experienced tremendous change. Tourism has become a highly visible and somewhat controversial component of change in the region, and its importance to local economies has increased. As a result of increased tourism development...
This appendix to my dissertation documents how I worked with poison oak plants as a subject of study for three years. It contains practical suggestions for people who have my level of sensitivity (low to moderate). I expect it may be useful for hikers, mountain bikers, woodland owners, people in...
The purpose of this study was to investigate the initial on-site supervision experience of school counseling interns. Current counseling supervision research has failed to address dynamics specific to the context of school counselor training and professional development. This gap in the research suggest that examining the phenomenological experience of what...
A large body of research has examined how children enter the science classroom
with previously formed ideas about the content they will learn. These ideas influence how
the child interprets instruction. This study reversed the investigative focus by exploring
how children's ideas in science influence teaching. Specifically, the study examined...