Index Catalog // ScholarsArchive@OSU

Rework Practices in the Dairy Industry and Their Potential Contribution to Microbial Spoilage

Creator:: Rush, Casey E.
Abstract:: Rework is a common practice in the dairy industry as a way for processors to minimize waste while recovering costs for dairy products that are unsaleable. The regulations available for reworking fluid dairy products only outline product eligibility requirements with a focus on repasteurization of the products containing rework as...
Resource Type:: Masters Thesis
Full Text:: SURVEY Casey E. Rush, Lisbeth Meunier-Goddik, and Joy G. Waite-Cusic* Department of Food

Mitigation of Microbiological Water Quality by Last Irrigation-to-Harvest Intervals

Creator:: Emch, Alexander W.
Abstract:: Foodborne outbreaks involving fresh produce have been on the rise since the late 1990's. Pathogens such as Salmonella spp. and Escherichia coli are prevalent in agricultural environments and commonly travel between farms via irrigation water. The Food Safety Modernization Act (FSMA) has placed an increased emphasis on microbiological standards of...
Resource Type:: Masters Thesis
Full Text:: Last Irrigation-to-Harvest Intervals Abstract approved: Joy G. Waite-Cusic

The Examination of Escherichia coli Contamination via Agricultural Water Applications and Survival During Pre-Harvest Field Curing of Dry Bulb Onions

Creator:: Racine, Jason R.
Abstract:: 2020 and 2021 brought the first reported outbreaks of salmonellosis epidemiologically linked to dry bulb onions in the United States. Outbreak investigations were not able to implicate a specific source of the contamination but speculated that contaminated water was a significant contributor. The Produce Safety Rule established minimum standards for...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Joy Gail Waite-Cusic 2020 and 2021 brought the first reported outbreaks of salmonellosis

An Exploration of Cheese Safety Parameters and Aging as Mitigation Strategy for Foodborne Pathogens in Cheese

Creator:: Riesgaard, Brandon
Abstract:: Pasteurization is an effective method of reducing risks associated with foodborne pathogens in raw milk. Cheese made from raw milk has a higher potential to harbor harmful bacterial pathogens. However, some cheesemakers prefer to use unpasteurized milk to preserve the natural microflora present in the raw milk and to prevent...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Joy Waite-Cusic Pasteurization is an effective method of reducing risks

Influence of Processing Parameters on the Inactivation of Salmonella spp. During the Cooking Step of Jerky Production Using a Commercial-Scale Dehydrator

Creator:: Minarsich, Joey
Abstract:: United States Department of Agriculture-Food Safety and Inspection Service (USDA-FSIS) guidelines for beef jerky processing support producers' ability to satisfy the performance standard requirements for achieving a 5-log reduction in Salmonella and E. coli O157:H7. The first compliance guide for jerky processors was created in response to several Salmonella outbreaks...
Resource Type:: Masters Thesis
Full Text:: approved: ______________________________________________________ Dr. Joy Waite-Cusic United

Risk Assessment of Salmonella in Raw Hazelnuts and use of Propylene Oxide as a Potential Mitigation Strategy

Creator:: Wright, Daniel G.
Abstract:: Multiple outbreaks of foodborne illness (Salmonella and E. coli O157:H7) have been associated with tree nuts and tree nut products since the early 2000s. In response to these outbreaks and many others in fresh produce and peanut butter, Congress created and passed the Food Safety Modernization Act (FSMA) to require...
Resource Type:: Masters Thesis
Full Text:: Joy G. Waite-Cusic Multiple outbreaks of foodborne illness (Salmonella and E. coli O157:H7

Important Considerations for Food Process Validations : Strain Selection, Contamination Level, and Relevant Treatment Conditions

Creator:: Pearson, Eva
Abstract:: Reports of foodborne outbreaks have increased in the last decade, posing a public health risk to consumers. In an attempt to mitigate this risk, the newly established Food Safety and Modernization Act (FSMA) takes a preventive rather than reactive approach to food safety. Under FSMA, producers are required to validate...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Joy G. Waite-Cusic Reports of foodborne outbreaks have increased in the last decade

Investigating Potential Environmental Sources for Coliforms in Cheddar Cheese Production

Creator:: Selover, Brandon J.
Abstract:: The production of Cheddar cheese is a complex process with multiple potential sources of undesirable bacteria, including those that have negative impacts on product quality (spoilage organisms) and those that are used to evaluate sanitary conditions in the production environment (indicator organisms). The dairy industry commonly uses coliform bacteria as...
Resource Type:: Masters Thesis
Full Text:: . Kuhn, E., L. Meunier-goddik, and J.G. Waite-cusic. 2018. Effect of leaving milk trucks empty and idle

Further Optimization of Controlled Depuration for Eliminating Vibrio parahaemolyticus from Raw Oysters for Safe Consumption

Creator:: Ming, Ziwen
Abstract:: Vibrio parahaemolyticus infections in the United Stated have been linked to consumption of raw shellfish, particularly oysters, with symptoms of headache, abdominal pain, nausea, diarrhea, vomiting. Depuration, as a post-harvest process, has a long history of being applied in shellfish industry to reduce sewage bacteria. In order to reduce the...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Joy Gail Waite-Cusic Vibrio parahaemolyticus infections in the United Stated have been

Characterization of Spoilage Events on Flavored Milk Products by Paenibacillus odorifer

Creator:: Torres, Alejandro
Abstract:: Flavored milk is a growing category for dairy products; however, it is a perishable product that is subject to microbial spoilage which can lead to a negative consumer experience and lead to lost sales. Flavored milk processors communicated unique spoilage events related to their products, including color loss of strawberry...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Joy Waite-Cusic Flavored milk is a growing category for dairy products; however, it is a

Impact of Butterfat Content and Composition on the Quality of Laminated Pastries

Creator:: Ramirez, Sebastian
Abstract:: Butter has long been the premium choice for producing pastries such as Danish and croissants. Its inclusion has consistently delivered characteristically light and airy crumbs with beautifully flaky crust. Once considered a delicacy, pastries have now become innocuous in our everyday lives. Once requiring a skillful hand to sculpt and...
Resource Type:: Masters Thesis
Full Text:: :455–465. doi:10.3168/jds.2007-0717. Kuhn, E., L. Meunier-Goddik, and J.G. Waite-Cusic. 2018. Effect

Prevalence and Fate of Antibiotic-resistant E. coli in Municipal Wastewater Treatment Plants across Oregon

Creator:: Khorshidi Zadeh, Marjan
Abstract:: Wastewater treatment plants are considered one of the main sources and reservoirs of antimicrobial resistance (AMR). This study investigated the prevalence of 8 different phenotypes of AMR, multi-drug resistant (MDR), and extended-spectrum beta-lactamases (ESBL) producing E. coli in 17 wastewater treatment plants across Oregon in winter and summer of 2019...
Resource Type:: Masters Thesis
Full Text:: . Title: Prevalence and Fate of Antibiotic-resistant E. coli in Municipal Wastewater Treatment Plants

Contribution of Farm Level Milk Sourcing on Non-Starter Lactic Acid Bacteria (NSLAB) in Cheddar, and the Assessment of High Resolution Melt Analysis used for Species Identification

Creator:: Baird, Christopher S.
Abstract:: Non-starter lactic acid bacteria (NSLAB) are found at low levels in fresh raw milk and are important to the dairy industry because of their potential impact on the flavor and texture of yogurt, sour cream, and cheese. The purpose of this study was to evaluate three methods for the identification...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: ______________________________________________________ Lisbeth Goddik Joy Waite

“Red Light, Yellow Light!”: Evaluating the Anti-Listerial Potential of Bacillus Isolate Metabolites Using a High-Throughput Chromogenic Assay”

Creator:: Johnson, Taylor S.
Abstract:: Listeria monocytogenes contamination continues to pose challenges for the food industry and there is demand for effective methods of food preservation and protection that can also be considered clean label. A promising source of antilisterial compounds may be sourced from bacteria that produce novel byproducts. Ribosomally synthesized and post-translationally modified...
Resource Type:: Masters Thesis
Full Text:: Assay Abstract approved: ______________________________________________________ Joy Waite

Genomic mapping of efflux pumps in Listeria monocytogenes and their contribution to cadmium and fluoroquinolone tolerance

Creator:: Domen, Andrea
Abstract:: Listeria monocytogenes is the third most deadly foodborne pathogen in the United States. The young and elderly, as well as pregnant and immunocompromised people are the population most susceptible to serious illness and death from listeriosis infections. Unlike most foodborne pathogens, L. monocytogenes does not live a solely enteric lifestyle....
Resource Type:: Masters Thesis
Full Text:: Jovana Kovacevic, Joy Waite-Cusic Listeria monocytogenes is the third most deadly foodborne

Characterization of Bloomy Rind Cheese Recipes and the Impact of High Pressure Processing (HPP) on Cheese Quality

Creator:: Batty, Danton K. C.
Abstract:: Bloomy rind cheeses, including Camembert and Brie type cheeses, are highly susceptible to contamination by environmental pathogens during their manufacture and ripening. These cheeses undergo many physiochemical changes during ripening that provides these pathogens with a suitable environment to grow. One example of this change is an increase of pH...
Resource Type:: Masters Thesis
Full Text:: Joy Waite-Cusic Bloomy rind cheeses, including Camembert and Brie type cheeses, are highly

Prevalence and Characterization of Listeria spp. Recovered from Pacific Northwest Produce Handling and Processing Facilities

Creator:: Jorgensen, John
Abstract:: Foodborne illness in the United States continues to be a complex and recurring issue despite our increased understanding of the pathogenic microorganisms responsible. Foodborne illness outbreaks and product recalls linked to pathogenic bacteria have been more frequent in the produce industry (e.g. fruits and vegetables) in the last ten years....
Resource Type:: Masters Thesis
Full Text:: : _________________________________________________________________________________________________________ Joy Waite-Cusic

Characterization of Milk Hauling Practices and Their Impact on Raw Milk Microbiological Quality

Creator:: Kuhn, Eva
Abstract:: The dairy industry has indicated that milk hauling sporadically compromises milk quality, but often the reason is unknown. Milk hauling practices are an underexplored area of research, and are in need of attention because during hauling milk is most exposed to the external environment in comparison with any other step...
Resource Type:: Masters Thesis
Full Text:: : ________________________________________________________ Lisbeth Goddik and Joy G. Waite-Cusic The dairy industry has indicated that milk

Enrichment Isolation of Brettanomyces Yeasts to Probe the Relationship Between Vineyard and Winery Populations

Creator:: Pigao, Kevin E.
Abstract:: The budding yeast Brettanomyces bruxellensis has the potential to spoil fermented beverages and cause financial losses, but also contribute positively to certain products such as Lambic beer. It is most notorious for causing “Brett” spoilage of wine, which is characterized by undesirable aromas such as “bandaid” and “barnyard”, therefore most...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Kevin E. Pigao for

Interactions between Oenococcus oeni and Brettanomyces bruxellensis during winemaking and consequences for wine quality

Creator:: DuBois, Aubrey E.
Abstract:: The growth of Brettanomyces bruxellensis is a major cause of wine spoilage due tothe production of the volatile phenols 4-ethylphenol (4-EP) and 4-ethylguaiacol (4-EG), derivatives of p-coumaric acid and ferulic acid. During the winemaking process,some microorganisms can impact the concentration of the 4-EP precursors pcoumaricand coutaric acid (tartaric acid-esterified p-coumaric...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Aubrey E. DuBois for

Reduction of Salmonella spp. on In-shell Hazelnuts Using Continuous Steam Blanching and Prevalence of Salmonella spp. on In-shell Oregon Hazelnuts

Creator:: Letchworth, Christopher A.
Abstract:: Tree nuts have been implicated in a number of foodborne outbreaks and recalls in recent years linked to enteric pathogens, particularly Salmonella. Therefore, prior to distribution and marketing, it is necessary to understand the biological risks associated with the consumption of tree nuts and to find effective methods to inactivate...
Resource Type:: Masters Thesis
Full Text:: annually from 2009 to 2017 and were implicated in an outbreak of E. coli O157:H7 that sickened 10 people

Antibiotic Resistance in Septic Sludge and Receiving Environments of Ho Chi Minh City, Vietnam

Creator:: Schutzius, Genevieve Conyers
Abstract:: Approximately ninety percent of urban Vietnamese households are connected to septic tanks, from which up to three-quarters of the sludge is reported to be dumped into waterways in residential areas. Vietnam has a considerable prevalence of antibiotic misuse and resultant antibiotic-resistant bacteria (ARB) in the human microbiome. Due to the...
Resource Type:: Masters Thesis
Full Text:: city (p > 0.05, one-way ANOVA). The susceptibility of E. coli isolated from sludge and soil (n = 104

Survival of Listeria monocytogenes, Salmonella spp., and Staphylococcus aureus in raw yellowfin tuna during refrigerated and frozen storage

Creator:: Mou, Jing
Abstract:: The consumption of seafood in the United States has increased rapidly in recent years due to high quality protein and health benefits of seafood. Seafood can be a carrier for bacteria normally distributed in the marine environment and, in some cases, can be contaminated by human pathogens. Therefore, there is...
Resource Type:: Masters Thesis
Full Text:: samples were considered acceptable quality (APC < 107 CFU/g, E. coli < 3 MPN/g) with most samples (93.3

Development of High-Throughput Screening Methods to Determine Efficacy of “Clean-Label” Antifungals for Application on Cheese

Creator:: Jensen, Kristen
Abstract:: Cheese has been produced since ancient times and continues to be an important nutrient-dense staple in many diets around the world. Cheese quality is of high importance to consumers, and it is important for cheese producers to establish process controls to prevent and control cheese spoilage. Fungal spoilage is of...
Resource Type:: Masters Thesis
Full Text:: work. Additionally, to Dr. Joy Waite-Cusic for her constant assistance and much needed emotional

Growth of Staphylococcus aureus of enterotoxin production in pre-cooked tuna meat

Creator:: Wu, Xulei
Abstract:: Staphylococcus aureus is a human pathogen capable of producing enterotoxins causing staphylococcal food poisoning, one of the most economically important foodborne diseases in the U.S. This pathogen may be introduced to pre-cooked tuna meat used for the production of canned tuna because significant manual handling occurs after cooking of the...
Resource Type:: Masters Thesis
Full Text:: . Lisbeth Goddik, Dr. Joy Waite-Cusic, and Dr. Thomas Savage, for their valuable suggestions and kind help

Effects of Whey Protein Consumption on Inflammatory Biomarker Levels in Healthy Older Adults

Creator:: Adler, Samuel
Abstract:: Whey protein’s potential for bioactivity is well documented, but there is disagreement on the extent to which it may modulate the immune system towards decreased inflammation. Decreased inflammation is generally perceived as a beneficial bioactivity in foods as excessive chronic inflammation is linked to morbidity and mortality. This thesis first...
Resource Type:: Masters Thesis
Full Text:: kinases 1/2 (ERK1/2) Fc region of immunoglobulin E (FCεRI) Forkhead box P3 (FOXP3) Glutathione

Impact of terroir on cheddar cheese flavor and the influence of farm-to-farm variability, commingling, and pasteurization.

Creator:: Turbes, Gregory S.
Abstract:: The concept of terroir is commonly used as marketing tool to highlight unique characteristics of regional food products, however there is little scientific evidence of terroir pertaining to cheese. The purpose of this research was to investigate the potential impact of milk origin, pasteurization, and commingling on the sensorial, chemical,...
Resource Type:: Masters Thesis
Full Text:: compound analysis and statistical evaluation. Dr. Joy Waite-Cusic assisted with microbial examination. Dr

Metabolic effects of consumption of quercetin, ellagic acid, cherry, and apple phytochemical extracts in high-fat fed mice

Creator:: Smith, Sarah M.
Abstract:: Metabolic improvements and changes in gene expression were measured in mice fed polyphenol-rich extracts derived from apples and sweet cherries, and the common phytochemicals, quercetin and ellagic acid. Polyphenol-rich extracts were produced by solid phase extraction and column chromatography. Extracts and purified compounds were mixed into a high-fat (HF, 60%...
Resource Type:: Masters Thesis

Sweet Whey Fermentation: An Exploration of Optimizing the Alcohol Production of Kluyveromyces marxianus and Measuring the Nitrogen Content of Sweet Whey

Creator:: Schaan, Keenan
Abstract:: It is estimated that for every 1 kg of cheese produced, approximately 9 kg of whey is created. For smaller producers something needs to be done to keep it out of water ways and potentially to valorize it. However, access to efficient secondary whey processing to isolate protein and lactose...
Resource Type:: Masters Thesis
Full Text:: would also like to thank my committee members for their support and inspiration. Dr. Joy Waite-Cusic

Effects of Whey Protein Isolate on the Human Gut Microbiota and Intestinal Function in Older Adults

Creator:: Rackerby, Bryna
Abstract:: Whey protein is a functional food comprised of numerous bioactive peptides and proteins, including glycomacropeptide (GMP), a hydrophilic casein peptide that separates with the whey fraction during cheesemaking. GMP has a unique amino acid composition, making it a viable nutritional therapy in disorders where certain amino acids are implicated, while...
Resource Type:: Masters Thesis
Full Text:: Bobe, Dr. Joy Waite- Cusic, and Dr. Lisbeth Goddik, without whom neither I nor my project would have

Application of Antimicrobial Substance in Depuration for Decreasing Vibrio Parahaemolyticus Contamination in the Pacific Oysters (Crassostrea gigas)

Creator:: Shen, Xiaoye
Abstract:: Vibrio parahaemolyticus is the leading cause of foodborne illnesses associated with seafood consumption. Consuming raw or undercooked seafood contaminated with V. parahaemolyticus can result in development of acute gastroenteritis with symptoms of nausea, vomiting, abdominal cramping and watery diarrhea within 24 hours of infection. Illness is usually self-limited and lasts...
Resource Type:: Masters Thesis
Full Text:: . Waite- Cusic, and Dr, Hermes, for spending time review my thesis and providing critical suggestions

Species- and Temporal-Specific Coral Microbiome Fluctuations in Response to a Natural Bleaching Event

Creator:: Ewton, Erica M.
Abstract:: Corals provide a diversity of ecosystem services, are among the most biologically diverse ecosystems on Earth, and directly support ~500 million people globally; however, corals are increasingly experiencing significant threats and are undergoing severe bleaching events as the result of the warming climate. Using a two-year data set surrounding a...
Resource Type:: Masters Thesis

The Inhibitory Activity of Essential Oil Constituents Against Clostridium perfringens Type A Isolates

Creator:: Alanazi, Saud
Abstract:: C. perfringens type A isolates are the causative agents of C. perfringens type A food poisoning (FP) and non-food-borne (NFB) human gastrointestinal diseases. In this study, we evaluated the antimicrobial effect of essential oil constituents (cinnamaldehyde, eugenol, allyl isothiocyanate (AITC), and carvacrol) against C. perfringens FP and NFB isolates grown...
Resource Type:: Masters Thesis
Full Text:: domestic animals. Among five types (A-E), type A strains of C. perfringens are considered as the main

Immunomodulatory Actions of Bovine Whey Protein Isolates, Glycomacropeptide, and Their Digests: Insights from Macrophage and Human Studies

Creator:: Olsen, Wyatt
Abstract:: Whey protein isolate (WPI) and glycomacropeptide (GMP) have shown potential immunomodulatory properties. In this study, we investigated their effects on pro-inflammatory cytokine secretion using both in vitro and in vivo models. In LPS-stimulated THP-1-derived macrophages, digested WPI and GMP reduced cytokine expression, while whole GMP increased secretion. The in human...
Resource Type:: Masters Thesis
Full Text:: for providing the intestinal digest samples and writing support, and Sam Adler and Joy Waite-Cusic

Self-perceived health and chronic conditions among users of supplements with and without botanical ingredients: findings from the 2009-2014 National Health and Nutrition Examination Surveys

Creator:: Alonso Street, Ellen M.
Abstract:: Objective: To describe associations between self-reported general health status, chronic conditions, and use of supplements containing botanicals (SCB) and describe reasons for use among U.S. adult supplement users. Design: Cross-sectional analysis using data from the 2009-2014 National Health and Nutrition Examination Survey (NHANES). Information on self-reported dietary supplement use and...
Resource Type:: Masters Thesis
Full Text:: would like Dr. Joy Waite-Cusic for agreeing to be my Graduate Representative throughout the evolution

Analysis of Intact Glycomacropeptide Derived from Bovine Kappa-casein in Whey Protein Isolate and Intestinal Digesta

Creator:: Qu, Yunyao
Abstract:: Kappa-casein glycomacropeptide (CMP), a 64-amino-acid peptide, is released from kappa-casein after rennet treatment and is one of the major peptides in whey protein isolate (WPI). CMP has anti-inflammatory and antibacterial activities. CMP has two major amino acid sequences with different modifications including glycosylation, phosphorylation and oxidation. However, no previous work...
Resource Type:: Masters Thesis
Full Text:: pandemic. I’m deeply indebted to my thesis committee of Dr. Lisbeth Goddik, Dr. Joy Waite-Cusic and Dr

Effects of 12 months of voluntary alcohol self-administration on intracortical bone remodeling in a rhesus macaque model

Creator:: Gaddini, Gino W.
Abstract:: Background: Alcohol is a nonessential nutrient widely consumed throughout the world. Chronic alcohol abuse is associated with numerous adverse skeletal effects. However, prior to this study, the effects of alcohol abuse on intracortical bone remodeling in an animal model had not been investigated. Reduced intracortical bone remodeling could impair repair...
Resource Type:: Masters Thesis
Full Text:: members of my committee. Dr. Gianni Maddalozzo, Dr. Bo Zhang, and Dr. Joy Waite-Cusic. I am honored to

Impact of Industry Hauling Practices on Raw Milk Quality in a Commercial Setting

Creator:: Darchuk, Emily
Abstract:: Hauling is a critical part of the commercial milk supply chain, yet very few studies have aimed to understand its impact on raw milk quality. Consolidation of the American milk industry has led to the use of tanker trucks for up to 24 h between cleanings, which is the maximum...
Resource Type:: Masters Thesis
Full Text:: . Lisbeth Goddik, Dr. Joy Waite-Cusic and Gina Shellhammer for their support, guidance and most

Antibiotic Resistance in Treated Wastewater Effluent and Biosolids and Fate after Agricultural Reuse

Creator:: Mays, Catherine M.
Abstract:: Conventional wastewater treatment facilities using activated sludge, secondary clarifiers, and chlorine disinfection comprise a large portion of urban wastewater treatment practices in the United States. While highly adept at removing chemical, physical, and numerous biological contaminants, these treatment methods are ineffective at removing contaminants of emerging concern, such as antibiotics...
Resource Type:: Masters Thesis
Full Text:: measured in soil weekly until harvest 77 days after planting. E. coli and enterococci were detectable in

An evaluation of blackberry harvest sanitation and the ability of foodborne pathogens to survive in blackberry products

Creator:: Sales, Melissa M.
Abstract:: Blackberries, genus Rubus, are an important Oregon agricultural commodity. In their fresh and processed forms, they offer many health benefits and may be able to help Americans better achieve fruit consumption recommendations because of convenience and pleasant sensory qualities. However, the susceptibility of blackberry products to contamination with bacterial pathogens...
Resource Type:: Masters Thesis
Full Text:: evaluated for E. coli O157:H7 and Salmonella spp. by rapid detection methods via the NEOGEN® Reveal® 2.0

Genetic Diversity and Antimicrobial Resistance of Listeria monocytogenes within Produce Handling and Processing Environments

Creator:: Bland, Rebecca N.
Abstract:: Listeria monocytogenes is a foodborne pathogen frequently associated with food processing environments. Its presence is particularly concerning in facilities handling minimally processed and ready-to-eat foods. Recent outbreaks associated with fresh produce, such as packaged salads and mushrooms, highlight the need to better understand and control these pathogens in environments that...
Resource Type:: Masters Thesis
Full Text:: Kovacevic and Joy Waite-Cusic. Thank you for placing value on what we learn first, only to be followed by

Cleaning and Sanitizing Surfaces on Produce Farms: Optimizing What, How, and When

Creator:: Ohman, Erik
Abstract:: Production of fresh produce takes place outdoors, and therefore, is exposed to many routes of contamination (e.g., soil, contaminated water, manure, etc.) by human pathogens. Although precautions are taken to reduce this risk, pathogens can be regularly introduced to produce handling facilities. To manage the risk of cross-contamination from potentially...
Resource Type:: Masters Thesis
Full Text:: through this degree was integral to my success. Secondly, thank you to Dr. Joy Waite-Cusic for the

Development of a High Throughput Method for Screening of Clean-Label Mold Inhibitors in Cheddar Cheese

Creator:: Kornberg, Kaitlyn R.
Abstract:: Mold growth on cheddar-style cheese, though not a food safety issue, causes significant loss to the industry due to consumer rejection. For this reason, it is common for at-risk products, such as cheese shreds, to be coated with the mold inhibitor natamycin. While highly effective at extending shelf-life, preferences for...
Resource Type:: Masters Thesis
Full Text:: is fortunate to have you at the forefront of its leadership. Thank you, Dr. Joy Waite-Cusic for

Prevalence of Volatile Phenols in Kombucha and Evaluation of Factors that Influence their Formation

Creator:: Navarro, Roxana
Abstract:: Kombucha is a traditional fermented beverage that has become increasingly popular in the United States due to its perceived health benefits and unique flavor profiles. The drivers of kombucha flavor have not been fully characterized, at least in part because it is produced using a complex microbial community, leading to...
Resource Type:: Masters Thesis
Full Text:: and interpretation of this data. Dr Joy Waite-Cusic for all her support both academically and

Migration of E. coli and solutes to tile drains via preferential and matrix flow

Creator:: Moreno, Daniel
Abstract:: The extent of agricultural drainage has created concern for its potential undesirable effects on surface water quality. Land applications of liquid manure on tile drain fields have the potential to transport solutes and bacteria to the drains following precipitation or irrigation events and many times are directly sent to a...
Resource Type:: Masters Thesis
Full Text:: Master of Science in Soil Science presented on March 21, 2002. Tittle: Migration of E. co/i and Solutes

U(VI) transport in subsurface materials: is two-site, one-species modeling sufficient?

Creator:: Harrington, Stephanie J.
Abstract:: Uranium adsorption to Hanford sediment was studied for various pH, total inorganic carbon concentrations, and total U(VI) concentrations. Both batch and transport studies were done in an attempt to understand the adsorptive trend of U(VI) on Hanford sediment, and the changes in adsorption as both pH and total inorganic carbon...
Resource Type:: Masters Thesis
Full Text:: conditions, a two-site, two-species surface complexation model described by Waite et al. (1994) was used in

Heat Flow from a Vapor-Dominated Sublacustrine Vent Field Beneath Yellowstone Lake

Creator:: Favorito, Julia E.
Abstract:: Portions of Yellowstone Lake sit on top of a vigorous but not well understood hydrothermal system situated in a region of intense geologic and environmental forcings. A heat flow study conducted over the Stevenson Island Vent Field (SIVF), a vent field at the bottom of Yellowstone Lake underlain by an...
Resource Type:: Masters Thesis
Full Text:: OF THE THESIS OF Julia E. Favorito for the degree of Master of Science in Ocean, Earth, and

Interpreting a weird and scenic landscape to park visitors : tectonic and volcanic processes of Craters of the Moon National Monument and Preserve, Idaho

Creator:: Truitt, Kimberly E.
Abstract:: This thesis develops a geology training manual for the Interpretation staff of Craters of the Moon National Monument and Preserve (CRMO) in southern Idaho. The manual will help the staff convey geologic principles to park visitors who are experiencing a landscape formed by volcanic processes. Basic geology and the most...
Resource Type:: Masters Thesis
Full Text:: THESIS OF Kimberly E. Truitt for the degree of Master of Science in Geology presented on June 1

Greater Sage-Grouse (Centrocercus urophasianus) Demographic Rates and Predator Communities in a Degraded Landscape in Modoc County, California

Creator:: Sink, Chelsea E.
Abstract:: The greater sage-grouse (Centrocercus urophasianus: hereafter; sage-grouse) population in Modoc County California is geographically isolated and has been subsidized by translocation to prevent inbreeding depression since 2005. Despite significant efforts to increase the population through translocations and habitat improvement by cutting encroaching western juniper (Juniperus occidentalis), only a single lek...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Chelsea E. Sink

A study of the germination and growth of pollen in artificial cultures

Creator:: Moinat, Arthur David
Resource Type:: Masters Thesis
Full Text:: of in charge of Major Heaclof Department of D e an of Sci4 I o f Chairman of Comriittee on

A study of pollination and fertilization in the filbert (Corylus avellana)

Creator:: Rimoldi, Frank J.
Resource Type:: Masters Thesis
Full Text:: possible the opportunity for this investigation, and to Dr. E. M. Harvey, who, although usually pressed

A survey of internal parasites of poultry and game birds in Oregon

Creator:: Morgan, Banner Bill, 1915-1950
Resource Type:: Masters Thesis
Full Text:: ooiieistod o the autopsy of 458 birda; 26L. of the total wore ohiokeìs and turies viui10 193 e game birds

Structural Variations of Headwater Stream Food Webs Along Geophysical Gradients at the HJ Andrews Experimental Forest

Creator:: Zatkos, Lauren E.
Abstract:: The structure of food webs and how they relate to community stability has been an important debate in ecology. Specifically, predictability of web shape and how it influenced by surrounding landscapes is one of the main goals of such discussions. Headwater streams provide a study template that is of interest...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Lauren E. Zatkos for

Conversion of a model DBS Loran indicator to a fixed time-base oscilloscope

Creator:: Trolan, J. Kenneth
Resource Type:: Masters Thesis
Full Text:: NON-SIN1SOIDAL PJRIO1)IC IAVEb . . . . . . 3 DIFFERENTIATING AND ThITEGRATING CIRCIJITS . e . . 5

Relation of moisture content and various storage methods to grade and quality of mature western Oregon corn and a comparison of Oregon and mid-western corn

Creator:: Warren, Rex
Resource Type:: Masters Thesis
Full Text:: pounds for silage. Waite(63) by experimental feeding 0±' kiln dried crack- ed corn observed that it

Land surface energy balance and surface soil moisture variation in HAPEX-MOBILHY

Creator:: Nichols, William E.
Abstract:: The HAPEX-MOBILHY regional experiment provided an significant opportunity to analyze the partition of energy and distribution of water over land surfaces. The combination of remotely sensed data and ground instrument networks over the large-scale in situ experiment allowed investigation of spatial and temporal variation of such hydrologic parameters as the...
Resource Type:: Masters Thesis
Full Text:: variation in HAPEX-MOBILHY AN ABSTRACT OF THE THESIS OF William E. Nichols for the degree of Master of

The effect of storage atmosphere on the subsequent hatching performance of Coturnix quail, turkey and chicken eggs

Creator:: Pautz, Roland K.
Abstract:: A series of trials involving Coturnix quail, turkey and chicken eggs was conducted to determine the effects on hatching performance of varying amounts of oxygen and carbon dioxide during storage in plastic bags filled with nitrogen or air. Storage periods of 6 and 13 days were studied in tests involving...
Resource Type:: Masters Thesis
Full Text:: PERFORMANCE OF COTURNIX QUAIL, TURKEY AND CHICKEN EGGS Abstract approved: (Signature) Paul E. Bernier

The fertilizer value of shrimp and crab processing wastes

Creator:: Costa, Robert Edward
Abstract:: The Federal Water Pollution Control Act Amendments of 1972 prohibits the discharge of seafood processing solid wastes into navigable waters after July 1, 1977. Oregon shrimp and crab processors must use other methods of disposal for the 15 to 30 million pounds of solid waste generated annually. The application of...
Resource Type:: Masters Thesis
Full Text:: Privacy Redacted for Privacy ACKNOWLEDGEMENTS Sincere appreciation is expressed to Dr. E. Hugh

Single rod wetting with simulated fuel-cladding gap

Creator:: Gaines, Stephen Frank
Resource Type:: Masters Thesis
Full Text:: approved: Redacted for Privacy Richard E. Collingha h.D. This thesis presents the results of falling

A climatology for prescribed fire in the southeastern United States

Creator:: Lamb, Robert Clay
Resource Type:: Masters Thesis
Full Text:: .. ,,. ,e a a ails 34 INT1ONS 0, WUXUR U,E$E8 EZZ*D U N1S STUD? , 36 DATA a a oaSa a,.. , .' a. . 39

How women negotiate family responsibilities and personal health

Creator:: Ourada, Verna E. Zehner
Abstract:: Women’s health affects women and society as a whole. In addition to paid employment, women provide unpaid labor as they care for their families, their homes, and ailing relatives. Only by staying healthy can women provide care to their families. Using a feminist perspective, this study examined how women manage...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT THESIS OF Verna E. Zehner Ourada for the degree of Master of Science in Human

Litter productivity at first and second parity by gilts mated at different weights at first or second estrus

Creator:: Tachasirinugune, Sommai
Abstract:: Purebred Yorkshire gilts with weights ranging from 70 to 105 kilograms were moved from a total-confinement rearing unit to a total-confinement brood stock unit where approximately ten gilts per pen were mixed to provide new penmates. Each gilt was thus exposed to an unfamiliar environment and to foreign penmates along...
Resource Type:: Masters Thesis
Full Text:: study; to my M.S. program committee (Dr. James E. Oldfield, the Head of the Department of Animal

The effects of various levels of dietary protein on high producing dairy cows in early lactation

Creator:: Pangborn, Marvin Clark
Abstract:: This project was designed to test the biological effects of three levels of dietary protein (12.7, 16.3 and 19.3% CP on a dry matter basis) on high producing Holstein-Friesian dairy cows. Forty five second lactation or older cows that showed the potential to produce over 31.75 kg (70 lbs) per...
Resource Type:: Masters Thesis
Full Text:: of my graduate com- mittee, Dr. James E. Oldfield, who has encouraged and inspired me throughout my

Assessing Mercury Levels, Health Metrics, and Immune Function in Non-stranded Male California and Steller Sea Lions in Oregon

Creator:: Rae, Samantha N.
Abstract:: California and Steller sea lions (Zalophus californianus, Eumetopias jubatus, respectively) are considered sentinel species because they have long life spans, are long-term coastal residents, feed at high trophic levels, and have large blubber stores that serve as depots for anthropogenic toxicants. There are few studies on sea lion health and...
Resource Type:: Masters Thesis

Evaluation of new formaldehyde-free, soy flour-based wood adhesives for making particleboard

Creator:: Gu, Kai
Abstract:: Formaldehyde-based adhesives such as urea-formaldehyde (UF), phenol-formaldehyde (PF) are widely applied in wood-based composite industry. However, these adhesives are all petrochemical-based and could not sustain in a long term due to a limited reserve of oil and natural gas. Moreover, these adhesives emit carcinogenic formaldehyde in the production or use...
Resource Type:: Masters Thesis
Full Text:: . I also want to thank Dr. John A, Nairn, Dr. Willie E. Skip Rochefort and Dr Hsiou- Lien Chen for

Morphological and neurological outcome in the short time study after spinal cord injury in mice

Creator:: Kazemi, Soheila
Abstract:: Spinal cord injury (SCI) is a devastating disease which poses health problems in human and veterinary medicine. SCI causes neurological disability, with loss of motor, sensory and autonomic function. This study investigated the efficacy of local treatment with IKVAV-peptide on spinal cord regeneration following compression injury at T12 vertebra in...
Resource Type:: Masters Thesis
Full Text:: (E) groups……………………...52 3.1. Photomicrograph of untreated normal mouse (A) showing a portion of

Development of formaldehyde-free wood adhesives

Creator:: Peshkova, Svetlana
Abstract:: Wood adhesives are essential components of wood composites. At present, the commonly used wood adhesives, phenol-formaldehyde (PF) and urea-formaldehyde (UF) resins, are petroleum-based synthetic resins that may result in emission of formaldehyde in the production and use of wood composites. Because the world's oil reserves are naturally limited and formaldehyde...
Resource Type:: Masters Thesis

Establishment tolerance of six native sagebrush steppe species to imazapic (PLATEAU®) herbicide implications for restoration and recovery

Creator:: Bekedam, Steven
Abstract:: Scientists and land managers realize that integrated weed management (IWM) strategies are needed to attain successful and lasting improvements of weed infested landscapes. At this time no broadly reliable and environmentally safe IWM strategy has been developed to control exotic annual grasses that dominate many ecosystems of the northern Great...
Resource Type:: Masters Thesis
Full Text:: (Elymus wawawaiensis J. Camison & Barkworth), showed positive responses to imazapic applications. For E

Investigation of film forming properties of beta-chitosan from jumbo squid pens (Dosidicus gigas) and improvement of water solubility of beta-chitosan, Investigation of film forming properties of β-chitosan from jumbo squid pens (Dosidicus gigas) and improvement of water solubility of β-chitosan

Creator:: Chen, Jeremy L.
Abstract:: The objectives of this project were to investigate the critical factors impacting the physicochemical and antibacterial properties of β-chitosan based films derived from jumbo squid (Dosidicus gigas) pens, and to evaluate the feasibility of improving water solubility of β-chitosan through Maillard reaction. The studies examined the effect of molecular weight...
Resource Type:: Masters Thesis
Full Text:: and α-chitosan films delayed (P < 0.05) the proliferation of E. coli, where lactate films showed the

Inactivation of bacterial pathogens in drinking water

Creator:: Hartlerode, Evelyn R.
Abstract:: Wine is known to have been enjoyed since ancient times. Although early civilizations where unaware of scientific mechanisms of the properties of wine, empirical methods allowed them knowledge of its intoxicating effects as well as its healthful properties. These properties lead the ancients to use wine for many purposes including...
Resource Type:: Masters Thesis
Full Text:: II. Log Reductions of Chapter E. coli O157:H7 ATTC 43894 in Wine with added SO2

Giving credit where credit is due : the relationship between partner acknowledgement of the division of labor and couple intimacy

Creator:: Ottusch, Timothy M.
Abstract:: Using data from the National Institute of Child Health and Human Development’s Study of Early Child Care and Youth Development (SECCYD), this study assessed the implications of the division of labor on relationship intimacy for married and cohabitating dual-earner couples (N= 392 couples). The study focused on what mothers and...
Resource Type:: Masters Thesis

Lamprey of the Goose Lake Basin: A Multi-Scale Habitat & Distribution Analysis

Creator:: Dickey, Jacob C.
Abstract:: Two ecologically important lamprey species found in the endorheic Goose Lake Basin face conservation threats; however, relatively little is known about their habitat needs or spatial distribution. Lamprey and their habitat are often found to be patchy; to evaluate these relationships for the lamprey in this basin, I utilized a...
Resource Type:: Masters Thesis
Full Text:: gratitude to my friends, family, D.A.S.H lab-mates, and fellow crew members (including A. Dew, E. Hultin

Constructing heroic identities : masculinity and the western film

Creator:: Foster, Brad D.
Abstract:: This thesis employs the study of gender to demonstrate how recent Hollywood western films have constructed a hero that is reflective of contemporary beliefs regarding masculinity. Beginning with a New Historicist approach at studying gender, this work first considers the construction of masculinity in post World War II America and...
Resource Type:: Masters Thesis

A spatially explicit method for determining the effects of watershed scale land use on stream conditions

Creator:: Kehmeier, Jonathan W.
Abstract:: The primary goal of this research was to identify the impacts that individual agricultural land uses have on fish communities in small streams located in the Willamette Valley of western Oregon. The diverse nature of the land use features of the valley provided a challenging but useful system for the...
Resource Type:: Masters Thesis
Full Text:: sedimentation (Kuhnle et al. 1996), nutrient loading (Owens et al. 1991), and water temperature (Waite and

Citizen Science Research : A Focus on Historical Whaling Data and a Current Marine Mammal Citizen Science Project, Whale mAPP

Creator:: Hann, Courtney
Abstract:: Citizen science work has built the foundation of much of our knowledge on regional-scale large cetacean spatial patterns through historical whaling data. Historical whaling data on sperm whales was used as an example to show the type of ecological questions large-scale, long-term citizen science datasets can address. Results from the...
Resource Type:: Masters Thesis
Full Text:: literacy. Public Understanding of Science 0:1 – 20. Dahlheim, M. E., P.A. White and J.M. Waite. 2009

The investigation of job satisfaction levels of employed single women and employed married women

Creator:: Jae, Mie Kyung
Abstract:: This study examined job satisfaction levels between employed single women and employed married women. The specific objectives of the study were: (1) to investigate differences in the level of job satisfaction between employed single women and employed married women- (2) to investigate the factors whicn influence the level of job...
Resource Type:: Masters Thesis
Full Text:: single women and employed married women AN ABSTRACT OF THE THESIS OF e 1,(yung Jae for the degree of

Meiosis, pollination and incompatibility in Barlett and Seckel pears

Creator:: Olez, Hayati
Resource Type:: Masters Thesis
Full Text:: ■ Chairmae Committee Dean of Graduate School Date thesis is presented cJcf

Effects of strip versus continuous grazing management on diet parameters and performance of yearling steers grazing native flood meadow vegetation in eastern Oregon

Creator:: Blount, David Kenneth
Abstract:: A trial was conducted May 1 to September 4, 1989 at the Eastern Oregon Agricultural Research Center (EOARC) Burns, OR to examine the effects of strip or continuous grazing management on the diet and performance of steers grazing native flood meadows. The objective was to determine if strip grazing would...
Resource Type:: Masters Thesis
Full Text:: ratio of forage availability/animal demand. Scientists in Great Britain (Holmes et el., 1950; Waite et

Histological study of pear bark in relation to blight resistance

Creator:: McCormick, Andrew Cameron
Resource Type:: Masters Thesis
Full Text:: variolosaNo. 456--B B. P. I. Susceptible Varieties B art 1 e t t Fore lie Santa Claus Howell Susceptible

Efficacy of Sanitizers at Controlling Listeria spp. and Listeria monocytogenes When Challenged with Variables Commonly Encountered in Food Processing Environments

Creator:: Boucher, Cara
Abstract:: Listeria monocytogenes (Lm) is a pathogenic bacterium associated with the foodborne disease listeriosis in humans. Listeriosis affects thousands of people in the U.S. yearly, with neonates, elderly, pregnant women, and immunocompromised persons disproportionately affected. Lm has a high mortality rate in these populations (20 - 30%) with symptoms including septicemia,...
Resource Type:: Masters Thesis
Full Text:: tutelage. I would also like to thank Dr. Joy Waite-Cusic for the help and guidance she provided me while

The effect of coagulation conditions on floc size distribution and morphology : implications for downstream treatment processes

Creator:: Maguire, Ian R.
Abstract:: Coagulation and flocculation are commonly used in drinking water treatment as a means of destabilizing and aggregating particles and promoting adsorption of dissolved organic carbon (DOC). In practice, jar tests are used to determine optimal conditions for the removal of turbidity and DOC. However, beyond the inferences that can be...
Resource Type:: Masters Thesis
Full Text:: repulsive barrier present (Waite 1999). As a result of their destabilized nature, the particles aggregate

Biological soil crusts in forested ecosystems of southern Oregon : presence, abundance and distribution across climate gradients

Creator:: Olarra, Jennifer A.
Abstract:: In arid and semi-arid deserts, soils are commonly covered with biological soil crusts. The study of arid biocrusts and their ecological function has become increasingly common in the literature over the last several decades. Interestingly, no mention is made of biological soil crusts in forested ecosystems, raising the question as...
Resource Type:: Masters Thesis
Full Text:: moisture retention (Hawkes and Flechtner, 2002; Raabe, 2010; Waite and Sack, 2011) and nutrient cycling

Northern goshawk breeding habitat selection within high-elevation forests of southwestern Colorado

Creator:: Ferland, Cheron L.
Abstract:: The northern goshawk (Accipiter gentilis) is a species of concern in the western United States due to its association with mature structural stage forests. I employed a use-versus-availability study design to quantify the vegetative, physiographic, and landscape variables associated with goshawk breeding habitat selection in the San Juan Mountains of...
Resource Type:: Masters Thesis
Full Text:: Mariah Meinhold, Henry Eichman, and C.J. Grimes. My USDA Forest Service colleagues provided critical

A general survey of school district 130 of Douglas County, Oregon

Creator:: Fisher, Marvin Lee
Resource Type:: Masters Thesis
Full Text:: of this spot attracted the attention of F. B. Waite and J. E. Perkins. They built the Sutherlin

Survival of Phytophthora lateralis in an organic matter fraction of the soil

Creator:: Ostrofsky, William Dow
Abstract:: Chamaecyparis lawsoniana, an extremely valuable timber tree species, is highly susceptible to a serious, soil -borne root disease caused by Phytophthora lateralis. Disease outbreaks of epidemic proportions are continually causing high mortality in natural stands of the host tree. Practical control measures rely on an understanding of the many factors...
Resource Type:: Masters Thesis
Full Text:: (Anderson 1951, Klemmer and Nakano 1962). P. citrophthora (R. E. Sm. & E.H. Sm. ) Leonian, P. para- sitica

Pollination studies

Creator:: Vincent, Clarence Cornelius
Resource Type:: Masters Thesis
Full Text:: failed to set fruit. After the investig- ations made by Waite, othe: varieties were grafted into these

The Costa Rica Dome : a study of physics, zooplankton and blue whales

Creator:: Matteson, Robyn S.
Abstract:: At the Costa Rica Dome (CRD), upwelling associated with cyclonic circulation and the presence of a shallow thermocline support a highly productive biological habitat, exploited by marine fauna at several trophic levels. During January 2008, a cruise to the CRD by the R/V Pacific Storm was conducted to relocate blue...
Resource Type:: Masters Thesis
Full Text:: , require dense and predictable prey aggregations (Moore, Waite, Friday, & Honkalehto, 2002). Prey at the

Feedback as Critical Care: An Antiracist, Feminist Praxis for Composition

Creator:: Rowland, Olivia A.
Abstract:: Feminist compositionists have long argued for addressing the feminization of composition, or its association with low value “women’s work,” by revaluing caring labor (Enos; Heinert and Phillips; Tuell). However, this argument assumes that writing teachers’ care work is beneficial for all students and teachers. Focusing on responding to student writing...
Resource Type:: Masters Thesis
Full Text:: “sacrific[e] for the academy” and “close attention to students” should be both revalued and made more

King's Valley resources utlization, problems and development

Creator:: Danyluk, Apolinaryj Paul
Resource Type:: Masters Thesis
Full Text:: , 97 days partly cloudy and l65 cloudy days. T^e area is in the path of the prevailing westerlies

Resisting Society’s Influence: Selling Sex in Women’s Professional Sports

Creator:: Perry, Rodney C.
Abstract:: Title IX's passage into law in 1972 set women’s sports on a course toward gender equity with men's sports at the scholastic and collegiate levels, leading to a definitive growth in women’s professional leagues, corresponding athlete salaries, and athletic marketing and promotional prospects. However, disparities currently exist in the availability...
Resource Type:: Masters Thesis
Full Text:: Tide Sport Laundry Detergent Print Advertisement ………………………………………………………………..111 E. Anna

Reversible Covalent Immobilization of Desferrioxamine B (DFOB) on Aminated Polystyrene Beads for Citrate-Bound Fe(III) Chelation

Creator:: Touma, Jad G.
Abstract:: The immobilization of chelators to solid supports has recently gained renewed interest due to the increasing biomedical and environmental applications made possible by these molecules’ ability to bind Fe(III) and other metal ions. The uses of immobilized chelators have expanded to include the treatment of metal overload in serum, the...
Resource Type:: Masters Thesis
Full Text:: ....................................................................................................... 89 Figure 3.5 k1/k2 and θe Theoretical in function of initial iron concentration (μM) as predicted

The Porter house in Shedd, Oregon, circa 1874

Creator:: Willson, Mary
Abstract:: The 109-year-old Porter house in Shedd, Oregon is one of few remaining, well-preserved examples of Rural Gothic architecture in the Willamette Valley. This study attempts to record its history: the economic circumstances which led the pioneering David Putnam Porter family to build this relatively large house, the family background, and...
Resource Type:: Masters Thesis
Full Text:: Appendix D Appendix E Appendix F Appendix G Interview Questions The Porter Family Tree Letter from S. D

Performance of dairy cattle under two feeding regimes, dry lot and irrigated pasture

Creator:: Kyeyune-Sendagi, Aloysius Lloyd
Abstract:: Four experiments were conducted (1961-1964) for the primary purpose of studying the milk and milk constituent yields of dairy cows under dry lot and pasture systems of management. The secondary purpose was to compare the health and breeding performance of cows under these two systems. Ninety-eight cows of the Holstein...
Resource Type:: Masters Thesis
Full Text:: adjusted (M. E. ) milk records (periods I, II and IV), (5) age adjusted milk fat records (per- iods I

Spatial and temporal distribution of juvenile Steller sea lion (Eumetopias jubatus) predation events in the Gulf of Alaska

Creator:: Vazquez, Norma A.
Abstract:: The first objective of this study was to quantify the intensity of space use of 70 juvenile (12-26 months old) Steller sea lions (SSLs) from the western Distinct Population Segment (DPS) in the Kenai Fjord(KF)/Prince William Sound (PWS) region of Alaska as derived from externally attached ARGOS satellite transmitter tags....
Resource Type:: Masters Thesis
Full Text:: 6 Holmes E, York A (2003) Using age structure to detect impacts on threatened populations: a

The histology of the digestive tract of the chimaeroid fish, Hydrolagus colliei

Creator:: Clothier, Galen Edward
Resource Type:: Masters Thesis
Full Text:: . novae-zealand±a~ (Fowler), 1911. ogilbii (Waite), 1898. purpurescens Gilbert, 1905. waitei Fowler

Factors affecting a bioassay for Agrobacterium tumefaciens in natural soil

Creator:: Jaeger, Joy Rae
Abstract:: Tomato seedlings were used to assay the population of A. tumefaciens in artificially contaminated soil. Aqueous soil suspensions were applied directly to the wounded stem. The bioassay was used because not all pathologically important physiological strains of A. tumefaciens would grow on any of the selective media available. This method...
Resource Type:: Masters Thesis
Full Text:: University Fort Collins, Colorado Kerr 27 negative Dr. A. Kerr Waite Research Institute Glen Osmond, South

Physiological and biochemical characteristics of two cultivars of tall fescue (Festuca arundinacea Schreb.) under different environmental conditions

Creator:: Fino, Antonio Carlos
Abstract:: Two cultivars of tall fescue (Festuca arundinacea Schreb.) with contrasting growth habits were studied under field and growth chamber conditions. Fawn, an established cultivar since 1964, and TFM, an experimental line, were observed to grow better during spring and fall months respectively, in the field. Different temperature regimes of 10/4,...
Resource Type:: Masters Thesis
Full Text:: and eventually were restored to near their original concentration. Waite (91) concluded that

Effects of two forms of intrareticular selenium supplements on beef cow selenium status and on the transfer of selenium from dam to offspring

Creator:: Campbell, Donald T.
Abstract:: Two concurrent studies were conducted to evaluate the effect of selenium (Se) supplementation on beef cows. Trial 1 was designed to evaluate the safety and efficacy of two intrareticular Se supplementation delivery systems. Trial 2 was designed to evaluate the transfer of Se across the placenta and through the colostrum...
Resource Type:: Masters Thesis
Full Text:: vitamin E and selenium on glutathione peroxidase's ability to protect erythrocytes (Mills and Randall

Atmospheric transport of anthropogenic semi-volatile organic compounds to the Olympic Peninsula of Washington State

Creator:: Killin, Robert K.
Abstract:: Ambient high-volume (hi-vol) air samples were collected between March 15th and May 30th 2002, at Cheeka Peak Observatory (CPO), located on the tip of the Olympic Peninsula, Washington State. This sampling campaign was in conjunction with the 2002 Inter-Continental Transport and Chemical Transformation (ITCT 2K2) Campaign and the Photochemical Ozone...
Resource Type:: Masters Thesis
Full Text:: study by Waite [2001] measured lindane (y-HCH) (9) 1 m above and 2 km downwind from a field during the

Bioaccumulation profiles of chemical contaminants in fish from the lower Willamette River, Portland Harbor superfund site and human health risk assessment

Creator:: Sethajintanin, Doolalai
Abstract:: Concentrations of twenty-five PCBs, fifteen organochiorine pesticides and mercury were determined in recreational fish from the Willamette River, Oregon during the summer of 2000. Thirty-six fish samples of three fish species including black crappie, smalimouth bass and con-rn-ion carp were analyzed. The data reported here provides new information and recent...
Resource Type:: Masters Thesis

Search Constraints

Search Results

Limit your search