Effects of 4-inch (10.16 cm) suction dredge mining on benthic macroinvertebrates in 3rd to 4th order streams were investigated in 1996 by evaluating four mining claim operations in Althouse Creek, Sucker Creek, and Taylor Creek in southwestern Oregon's Rogue River basin. The effects were site-specific. The study showed no significant...
The effects of different dietary lipids on the growth, nutrition
and tissue lipid profiles of rainbow trout raised to market size on a
commercially available ration were examined. Rainbow trout of 80 g
mean initial weight were fed pellets prepared according to Oregon
Moist Pellet specifications for 20 weeks. Salmon...
Medical imaging technologies play a vital role in early diagnosis of disease by providing internal images of the human body to medical professionals. Computed Tomography (CT) is currently the most commonly used medical imaging technology because it is easy to use, detectors and scanners are constantly improving, and more importantly,...
Stable isotope analysis of human tissue can provide information about diet independent of artifactual remains. Food is broken down and used in the synthesis of body tissue, so the isotopic composition of hair keratin reflects the isotopic composition of foods consumed. Therefore, the analysis of hair can provide a window...
The purpose of this paper is to evaluate the extent to which ecological
principles were used in four documents of differing scope and intent, that address
management of forest resources and riparian zones in three National Forests of the
Pacific Northwest. We use the phrase "ecological principles" in a very...
The results of my research suggest that tadpoles of the Western
toad (Bufo boreas) and the Cascades frog (Rana cascadae) display an
alarm response to chemicals from injured conspecific tadpoles.
Furthermore, results suggest that the Bufo boreas alarm response can
be elicited by a natural predator when it feeds on...
An exotic pest of deciduous plants, Operophtera
brumata (L.), was discovered in Portland, Oregon in
1978. O. brumata, the winter moth, is native to
northern Africa and temperate Eurasia. Its range
extends from Scandanavia, Britain, and France to Japan.
It is also now well established on the North American
continent...
This study sought to understand how post-secondary students experience and process issues of diversity, to discover what those views of diversity are, and how those views might change. The two issues that participants felt most strongly about were homosexuality and scholarships for students of color. Their views on homosexuality ranged...
Scytalidium ganodermophthorum (Xylogone ganodermophthora) is known as a yellow-pigmenting spalting fungus. However, recent observations have indicated that the dichloromethane-extracted pigment produced by S. ganodermophthorum can vary in color from yellow to green to red to purple, depending on the age of the fungus at harvesting. The timeline and mechanisms behind...
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Diana Rohlman, Committee Member, representing College of Public Health and Human Sciences