These six stories investigate characters who must
begin to understand their own actions, which are often
made in response to authority. In the lives of these
characters, there are schemas which they believe they
fit, certain rules placed on them by society that they
each feel they must obey. It...
Eastern filbert blight (EFB) is a devastating disease of European hazelnut, Corylus avellana, which causes economic losses in Oregon, where 99% of the U.S. crop is produced. The causal fungus, Anisogramma anomala, is native to eastern North America, where it is found associated with the American hazelnut (C. americana). Although...
The purpose of this study was to explore and describe how the orientations and knowledge of linguistically responsive teaching, as well as personal characteristics of school-based agriculture education (SBAE) teachers, influence the frequency of their implementation of linguistically responsive practices. Grounded in the Linguistically Responsive Teaching framework by Lucas and...
A method was developed to quantify organochlorine pesticides in whale scat. This method would ideally replace analysis of pesticides in blood and tissue samples, which are difficult to acquire. Scat samples were collected from one stranded gray whale and three live whales. The samples were extracted with pressurized liquid extraction,...
The two dimensional wavemaker problem on a finite domain is derived
for nonlinear waves. A numerical method based on the method of lines is
developed and applied to two test problems, the nonlinear surface pressure
distribution problem and the nonlinear full-flap wavemaker problem. The
solutions yield information about the fluid...
Viruses or viruslike particles of eukaryotic algae are ubiquitous in aquatic
habitats, however, suprisingly little is known about them. The research presented here
focused on one such virus which infects a multicellular filamentous brown alga of the
genus Feldmannia. Although preliminary studies had been performed on the genome
structure of...
This study used a multi-method approach to explore factors associated with high and low depression in a sample of rural mothers living in poverty. From a sample of 117 women with very high or very low CES-D depression scores, 40 cases were randomly selected for in-depth qualitative analysis. Qualitative comments...
Properly functioning riparian systems are vital to the health of watersheds and provide an important forage and habitat resource for livestock and wildlife. Riparian grazing management strategies that are economically feasible and achieve environmental goals are needed by resource managers and livestock producers. The objective of this thesis was to...
As rates of obesity continue to rise in the United States, interest in restaurant menu labeling has become a growing phenomenon. Many proposed initiatives to require posted nutrition information at the point of sale or decision point for choosing restaurant fare are gaining attention. Research to explore how nutrition labeling...
The multistage model of carcinogenesis states that an accumulation of mutations in genes that are important for maintaining cellular homeostasis may lead to cancer. A specific type of mutation observed in particular types of cancer is the CC-->TT mutation found in the TP53 gene of patients with basal or squamous...
The temporal development of biological control of arthropod pests in perennial cropping
systems is largely unreported. In this study, the development of biological control of twospotted
spider mite, Tetranychus urticae Koch, and hop aphid, Phorodon humuli (Schrank), in a new planting
of hop in Oregon is described over a period...
Drosophila suzukii (Matsumura), an invasive pest of small and stone fruits, has been recently detected in 39 states of the United States, Canada, Mexico, and Europe. This pest attacks ripening fruit, causing economic losses including increased management costs and crop rejection. Ongoing research aims to improve the efficacy of monitoring...
Drosophila suzukii Matsumura (Diptera: Drosophilidae), a recent invasive pest of small and stone fruits, has been detected in more than half of the U.S. states, and in Canada, Mexico, and Europe. Upon discovery, several different trap designs were recommended for monitoring. This study compared the trap designs across seven states/provinces...
Snags are important habitat features for many forest-dwelling species, so reductions in the number of snags can lead to the loss of biodiversity in forest ecosystems. Intentional snag creation is often used in managed forests to mitigate the long-term declines of naturally created snags, yet information regarding the use of...
Large shifts in species ranges have been predicted under future climate scenarios based primarily on niche-based species distribution models. However, the mechanisms that would cause such shifts are uncertain. Natural and anthropogenic fires have shaped the distributions of many plant species, but their effects have seldom been included in future...
Climate change is a hot potato policy: the responsibility for it is constantly passed between the domestic and international realms. By definition global climate change is a global problem yet, in the US, domestic concerns are preventing federal lawmakers from taking action and presidents from taking leadership at both the...
Short shoot syndrome (SSS) is an increasingly important problem of grapevines in Oregon and, more recently, in Washington. Symptoms associated with SSS include puckered or malformed basal leaves, scarred and severely stunted shoot growth, and loss of grape clusters. In severe cases, complete crop loss
results from abortion of affected...