Pesticides are among the most pervasive environmental contaminants and they are an important potential risk for human health. Agricultural workers are constantly exposed to pesticide spray, drift and residues in the soil and foliage. Many agricultural pesticides are readily absorbed by the body, through contact with the skin, the respiratory...
Two Oregon reservoirs contaminated by different mercury
sources were compared for mercury distribution in sediment and
bioaccumulation by fish. The average mercury concentration in
the sediment of Cottage Grove reservoir (0.67 ± 0.05 μg/g dry
wt) was higher than for Dorena Reservoir (0.12 ± 0.01 μg/g dry
wt). Sediment mercury...
Female mink (Mustela vison) are highly sensitive to polychlorinated biphenyl (PCB)-induced reproductive impairment. The goal of this research was to develop a better understanding of the mechanism of PCB-induced effects on female mink, mink embryos, and surviving mink kits. Anestrous, juvenile female mink and pregnant, adult mink were exposed to...
Program comprehension is important in program testing, debugging, and maintenance. Programming style impacts program understanding. However, there has not been any systematic identification of individual style factors and their contribution to program comprehension. In this thesis we present a programming style taxonomy composed of three classes: typographic (program layout and...
In this research, we have captured, in pattern form, key elements of programming and design in four programming paradigms (imperative, object-oriented, functional and logical) as well as multiparadigm programming. These pattern sets have formed a foundation upon which we were able to build a deeper understanding of multiparadigm programming and...
Suicide has become a national health crisis over the last twenty years in the U.S as rates have increased 35%. Rates of suicide among rural and youth (10-24 age range) populations have been shown to disproportionately contribute the most to upwards trends though, and this is especially true in Klamath...
This dissertation explores one overarching question relevant to the
paleoclimate of the latest Pleistocene glacial cycle (approximately the last
130,000 years): “How did spatial and temporal evolution of ocean
temperature, both at the surface and interior, relate to other parts of the
climate system in the late Pleistocene?” Results from...
This study examines the relationship between organizational absorptive
capacity and organizational responsiveness to changes in their environment exhibited
by growth-oriented SMEs in Russia. Adopting the theoretical framework and
methodology used by Liao, Welsch and Stoica in their 2003 study of the absorptive
capacity and organizational responsiveness of U.S. growth-oriented SMEs,...
This thesis is an investigation of the natural products deriving from marine algae and cyanobacteria and has resulted in the discovery of eleven new secondary metabolites. The structure elucidations of these new molecules were performed using a variety of spectroscopic techniques. Four new macrolides were isolated and characterized from the...