Index Catalog // ScholarsArchive@OSU

Geochemical and helium isotopic variability within the Lau Basin

Creator:: Goddard, Charlotte Ives
Abstract:: This research incorporates geochemical and helium isotopic analyses of Lau Basin volcanic glasses, along with helium isotopic analyses of water column hydrothermal plumes to better understand the processes that control the formation and evolution of this backarc basin. Lavas newly collected from the four southernmost segments of the Valu Fa...
Resource Type:: Dissertation
Full Text:: : . . David W. Graham This research incorporates geochemical and helium isotopic analyses of Lau Basin

The effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies

Creator:: Miller, Scott W.
Abstract:: I used current water management practices in central and eastern Oregon and Washington as natural experiments to quantify the effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies. Reduced discharge had direct (e.g. decreased velocity and wetted habitat) and indirect (e.g. increased conductivity and temperature) effects...
Resource Type:: Dissertation
Full Text:: Scott W. Miller, David Wooster, and Judith L. Li Freshwater Biology

Distribution of Ceratomyxa shasta (Myxozoa) and habitat preference of the polychaete host, Manayunkia speciosa in the Klamath River

Creator:: Stocking, Richard W.
Abstract:: Ceratomyxa shasta is a myxozoan parasite of salmonids and requires the freshwater polychaete, Manayunkia speciosa to complete its life cycle. The parasite’s distribution is currently limited to the Pacific Northwest region of North America and has been reported to cause substantial losses of both wild and hatchery salmonids. The spatial...
Resource Type:: Masters Thesis
Full Text:: Richard W. Stocking for the degree of Master of Science in Microbiology presented on February 23, 2006

The Clerk’s Tale : literal monstrosities and allegorical problems

Creator:: Brock, Christopher J.
Abstract:: My thesis, entitled “The Clerk’s Tale: Literal Monstrosities and Allegorical Problems,” argues that Chaucer’s Clerk is engaging both sides of a binary system. The Clerk has situated himself in a precarious position between two major schools of thought in the medieval culture, Franciscan and Dominican; the former promotes the will...
Resource Type:: Masters Thesis
Full Text:: , setting him in company with David and Isaiah.” 25 The motivation for the medieval writer to

Influences of high severity fire and postfire logging on avian and small mammal communities of the Siskiyou Mountains, Oregon, USA

Creator:: Fontaine, Joseph B.
Abstract:: High severity fire is a historical and integral disturbance process in coniferous forest types. Compounded disturbances such as multiple fires or post-disturbance management activities are increasingly common, but ecological responses are not well understood and may represent novel types of disturbances. I studied bird and small mammal communities in the...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________________ W. Douglas Robinson High severity fire is a historical and integral disturbance

Leukemia incidence and benzene air pollution in Portland Oregon

Creator:: Voss, Robert W.
Abstract:: Benzene is a widespread urban pollutant and monitoring results show concentrations are particularly high in Portland, Oregon. Nationally, benzene air pollution is the largest contributor to total cancer risk from air pollutants. We used data from several data sets including: modeled benzene distribution at the census block group level from...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Robert W. Voss for the degree of Master of Science in Environmental Health and

Regression calibration and maximum likelihood inference for measurement error models

Creator:: Monleon-Moscardo, Vicente J.
Abstract:: Regression calibration inference seeks to estimate regression models with measurement error in explanatory variables by replacing the mismeasured variable by its conditional expectation, given a surrogate variable, in an estimation procedure that would have been used if the true variable were available. This study examines the effect of the uncertainty...
Resource Type:: Dissertation
Full Text:: Models Abstract approved: Daniel W. Schafer Regression calibration inference seeks to

Effect of plant date on subsequent seedling field performance

Creator:: Taylor, Michael Monroe
Abstract:: Douglas-fir (Psudotsuga menziesii (Mirb.) Franco) seedlings were outplanted on eight dates (every three weeks from mid-August 2005 through mid-January 2006). On each plant date, seedlings from a conventional dormancy (CONV) induction treatment, including moisture and nutrient stress, and a shortened daylength (SD) treatment were outplanted on three western Oregon sites...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved ____________________________________________________________________ Robert W. Rose

Variation in communities of ammonia-oxidizing and denitrifying bacteria in Fennoscandian boreal forest soils

Creator:: Ghimire, Rama D.
Abstract:: The objective of this study was to examine the variation among ammonia-oxidizing and denitrifying communities in soils of a natural Fennoscandian boreal forest and of a forest with a long history of fertilization with different levels of nitrogen (N), and to examine whether there are any changes in the microbial...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: David D. Myrold The objective of this study was to examine the

The link between nitrogen cycling and soil microbial community composition in forest soils of western Oregon

Creator:: Boyle, Stephanie A.
Abstract:: The objectives of this thesis were to examine the links between soil microbial community composition and function using the nitrogen (N) cycle as a model for these interactions and to assess the impact of environmental factors such as microclimate, vegetation type, and nutrient availability on microbial diversity and N transformations...
Resource Type:: Dissertation
Full Text:: Western Oregon. Abstract approved: David D. Myrold The objectives of this thesis were to

ScholarsArchive@OSU

Geochemical and helium isotopic variability within the Lau Basin

The effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies

Distribution of Ceratomyxa shasta (Myxozoa) and habitat preference of the polychaete host, Manayunkia speciosa in the Klamath River

The Clerk’s Tale : literal monstrosities and allegorical problems

Influences of high severity fire and postfire logging on avian and small mammal communities of the Siskiyou Mountains, Oregon, USA

Leukemia incidence and benzene air pollution in Portland Oregon

Regression calibration and maximum likelihood inference for measurement error models

Effect of plant date on subsequent seedling field performance

Variation in communities of ammonia-oxidizing and denitrifying bacteria in Fennoscandian boreal forest soils

The link between nitrogen cycling and soil microbial community composition in forest soils of western Oregon

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