Index Catalog // ScholarsArchive@OSU

Development and evaluation of the mallard duck as a model to investigate the immunotoxicity of environmental chemicals

Creator:: Fowles, Jefferson R.
Resource Type:: Dissertation
Full Text:: Evaluation of the Mallard Duck as a Model to Investigate the Immunotoxicity of Environmental Chemicals

Application of nonequilibrium ecology to managed riparian ecosystems

Creator:: Stringham, Tamzen K.
Abstract:: Seasonal trends in water table level and soil moisture for four plant community types within an irrigated eastern Oregon riparian zone were described. Aboveground biomass, species composition, litter, percent bareground and percent basal cover of key plant species and life forms were measured. The relationship between water table levels and...
Resource Type:: Dissertation
Full Text:: ). Friedel suggests that environmental change can be discontinuous, with thresholds between alternative

Occurrence and distribution of perfluorinated surfactants in groundwater contaminated by fire-fighting activity

Creator:: Bartel, Cheryl Moody
Resource Type:: Dissertation
Full Text:: past, the environmental behavior of perfluorinated surfactants has received little attention, and how

Applications of redox indicators for evaluating redox conditions in environmental samples

Creator:: Jones, Brian Dion
Resource Type:: Dissertation
Full Text:: Conditions in Environmental Samples AN ABSTRACT OF THE THESIS OF Brian D. Jones for the degree of Doctor

Effects of potato cropping practices on nitrate leaching in the Columbia basin

Creator:: McMorran, Jeffrey P.
Resource Type:: Dissertation
Full Text:: western Umatilla and northern Morrow counties by the Oregon Department of Environmental Quality (ODEQ

Investigations of runoff production and sedimentation on forest roads

Creator:: Wemple, Beverley C.
Abstract:: Forest roads constructed in steep mountain landscapes have been associated with a number of effects on hydrologic and geomorphic processes. This research examined the effects of forest roads on the flow of water and sediment in drainage basins in the Cascade range of western Oregon. A study conducted at the...
Resource Type:: Dissertation

Analysis of energy conversion systems, including material and global warming aspects

Creator:: Zhang, Mingyuan
Abstract:: With the rapid increase of the world energy demand and consumption, the method and techniques to analyze, improve and optimize energy conversion systems have to deal not only with direct fuel exergy (energy) consumption, but also with other resources, which have associated exergy consumptions, and with environmental impacts, such as...
Resource Type:: Dissertation
Full Text:: environmental impacts, such as global warming. A general method for energy conversion system analysis is

Factors influencing individual attitudes toward environmental health communications

Creator:: Lenz, Holly Hanson
Abstract:: The likelihood of achieving an effective environmental health communications program increases with a knowledge of the target audience's attitudes toward their environmental health concerns, source credibility, preferred channels of communication, and desire to participate in environmental issues. With this in mind, the purpose of this study was threefold: 1) to...
Resource Type:: Dissertation
Full Text:: Factors influencing individual attitudes toward environmental

Assessment of exposure and response to atmospherically-derived contaminants in U.S. Arctic freshwater fish

Creator:: Allen-Gil, Susan M.
Abstract:: The Arctic has long been considered to be a pristine environment, far from population centers and pollution sources. The detection of synthetic organochlorine compounds in various elements of the Arctic food web has confirmed the global dispersion of pollutants, particularly of persistent compounds such as organochlorines and heavy metals. Levels...
Resource Type:: Dissertation
Full Text:: Geochemical and Environmental Reseach Group at Texas A&M University has been essential. Deborah Coffey has

Community satisfaction and life course factors influencing the likelihood of moving for 50 to 70 year olds

Creator:: Fox, Linda Kirk
Abstract:: The purpose of this study was to determine what levels of community satisfaction and personal and household characteristics would result in a model of retirees and pre-retirees and their propensity to move. This study assessed the relationship between certain socio-demographic variables and feelings of overall satisfaction as well as satisfaction...
Resource Type:: Dissertation
Full Text:: satisfaction with quality of life factors in the community and environmental quality were statistically

Assessing the impact of microbial pesticides on nontarget insects : laboratory versus field tests

Creator:: James, Rosalind R.
Resource Type:: Dissertation
Full Text:: in laboratory vs. spray treatments had no effect on mycosis levels, but environmental conditions

Farm level response to agricultural effluent control strategies : the case of the Willamette Valley

Creator:: Taylor, Michael L. (Michael Lester), 1960-
Abstract:: Changes in the structure of the U.S. agricultural industry since World War II have transformed it into a highly productive component of the domestic economy. But these changes have not occurred without indirect costs. For example, the reliance on agricultural chemicals has produced environmental effects causing growing concern. In addition,...
Resource Type:: Dissertation
Full Text:: produced environmental effects causing growing concern. In addition, renewed awareness of and demand for

The effects of partial cutting on stand structure and growth, and forest plant communities of western hemlock-Sitka spruce stands in southeast Alaska

Creator:: Deal, Robert L.
Abstract:: This study evaluated the effects of partial cutting on stand structure and growth, patterns of conifer regeneration, stand mortality and disease, and understory plant diversity and abundance. Seventy-three 1/5 ha plots were established in 18 partially cut stands throughout southeast Alaska. These stands were partially cut 12 to 96 years...
Resource Type:: Dissertation

Using a geographic information system (GIS) to monitor recreation impacts in a forested setting

Creator:: Wing, Michael
Abstract:: With a growing population and increasing demand for recreation resources, managers of public lands face unique challenges in allocating and overseeing resource use. One of the most reliable methods for gathering information from resource users involves surveying. Summaries and applications of survey results typically have not fully addressed the spatial...
Resource Type:: Dissertation

A coupled hydrologic-geomorphic model for evaluating effects of vegetation change on watersheds

Creator:: Duan, Jinfan
Abstract:: This work describes the modeling framework and initial results for CLAWS (Coupled Landscape And Water System), a physically-based, spatially-distributed hydrologicgeomorphic model that has been coupled with a vegetation dynamics simulation. Spatial variability of topography, soil, vegetation, and climate drive a hydrology module that calculates the water budget at given time...
Resource Type:: Dissertation

Characterization, chemodynamics and environmental impact assessment of leachates from complex organic materials

Creator:: Aboul-Kassim, Tarek A. T.
Abstract:: More than 65,000 organic chemicals are currently in commercial production with approximately 1000 added each year. Many chemicals are released into the environment as organic mixtures derived from complex hazardous or solid wastes. Of these, more than 1000 chemicals are of environmental concern because of their production quantities, toxicity, persistence,...
Resource Type:: Dissertation

Sublethal effects of estuarine carbaryl applications on juvenile English sole (Pleuronectes vetulus)

Creator:: Pozarycki, Scott V.
Abstract:: The pesticide carbaryl is applied annually to tidelands in Willapa Bay and Grays Harbor, WA to control populations of burrowing shrimp which modify sediments making the habitat unsuitable for oyster culture. Fish trapped on sprayed mudflats are often killed, but little is known about effects on fish present in subtidal...
Resource Type:: Dissertation
Full Text:: US Environmental Protection Agency for providing me with all the laboratory space and equipment

Response to Water Protection Rule changes in the Oregon Forest Practices Act : landowner/operator opinions and streamside conditions

Creator:: Hairston, Anne B.
Abstract:: This study assessed implementation of the 1994 Water Protection Rules in the Oregon Forest Practices Act from the perspective of Rule users and post-harvest riparian conditions. A 1993 evaluation found that under the previous rules over half of riparian conifers were removed during harvest, prompting concerns about future sources of...
Resource Type:: Dissertation

Point and nonpoint source mercury pollution of Oregon Reservoirs

Creator:: Park, Jeong-Gue
Abstract:: 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...
Resource Type:: Dissertation
Full Text:: from these two systems. Cottage Grove Reservoir was examined for environmental evidence of point

ScholarsArchive@OSU

Development and evaluation of the mallard duck as a model to investigate the immunotoxicity of environmental chemicals

Application of nonequilibrium ecology to managed riparian ecosystems

Occurrence and distribution of perfluorinated surfactants in groundwater contaminated by fire-fighting activity

Applications of redox indicators for evaluating redox conditions in environmental samples

Effects of potato cropping practices on nitrate leaching in the Columbia basin

Investigations of runoff production and sedimentation on forest roads

Analysis of energy conversion systems, including material and global warming aspects

Factors influencing individual attitudes toward environmental health communications

Assessment of exposure and response to atmospherically-derived contaminants in U.S. Arctic freshwater fish

Community satisfaction and life course factors influencing the likelihood of moving for 50 to 70 year olds

Assessing the impact of microbial pesticides on nontarget insects : laboratory versus field tests

Farm level response to agricultural effluent control strategies : the case of the Willamette Valley

The effects of partial cutting on stand structure and growth, and forest plant communities of western hemlock-Sitka spruce stands in southeast Alaska

Using a geographic information system (GIS) to monitor recreation impacts in a forested setting

A coupled hydrologic-geomorphic model for evaluating effects of vegetation change on watersheds

Characterization, chemodynamics and environmental impact assessment of leachates from complex organic materials

Sublethal effects of estuarine carbaryl applications on juvenile English sole (Pleuronectes vetulus)

Response to Water Protection Rule changes in the Oregon Forest Practices Act : landowner/operator opinions and streamside conditions

Point and nonpoint source mercury pollution of Oregon Reservoirs

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