Digital Commons Network^™

A Comparative Case Study Of Newspaper Coverage Of The Umatilla Chemical Weapons Depot/Incinerator From 1994 To 1998., Rogue Elliott Robertson

Dissertations and Theses

The purpose of this case study was to compare the news coverage of The Umatilla chemical weapons by examining newspapers from different communities: The Oregonian and The Hermiston Herald. The author examines solution frames, pluralistic frames, episodic frames, and thematic frames and compares them across two newspapers. The study found the difference was not significant when comparing the use of solution frames between The Hermiston Herald and The Oregonian. In addition, there was not a significant difference in use of pluralistic framing by The Hermiston Herald and The Oregonian. However, there was a significant difference in the sources presented in …

Citizenship, Duty And Virtue: A Vision Of Jefferson's America, Anthony Philip Stine

Dissertations and Theses

In contemporary American political life, concepts such as duty to country and society often play a role in political discourse, but are often forgotten in the lives of average Americans. The life of the average citizen is focused on issues of economic survival, familial matters, and the diversions that occupy persons. Devotion to country is made an at best secondary concern for Americans. The purpose of this work is to examine the concepts of civic virtue that historically have dominated American political thought, using the writings of Thomas Jefferson and his influences as the primary source material for this effort, …

Antioxidant Anthocyanidins And Calcium Transport Modulation Of The Ryanodine Receptor Of Skeletal Muscle (Ryr1), Thomas J. Dornan

Dissertations and Theses

Cardiovascular disease (CVD) claims more lives than any other disease in the world. Although numerous biological pathways share the blame, ventricular tachyarrhythmia (VT) is estimated to account for ~25% of all CVD deaths. A complete understanding of the molecular mechanisms underlying VT is unknown but recent studies have linked VT to improper calcium handling in the heart (canine). The principle calcium regulator in the muscle cell is the calcium ion release channel (aka RyR). Numerous endogenous and exogenous compounds can affect the way the RyR regulates calcium. In particular, abnormal levels of oxidants (reactive oxygen species) can oxidize critical thiol …

The Challenges And Opportunities Of Immigrant Integration: A Study Of Turkish Immigrants In Germany, Matthew Franklin Clark

Dissertations and Theses

In an ever-globalizing world, societies comprised of myriad people and cultures are quickly becoming the norm rather than the exception. In societies made up of culturally diverse, religiously pluralistic and disparate people, an added layer of complexity becomes apparent when attempting to integrate multiple cultures into a single society. Germany, in its reconstruction effort following World War II, faced such an integration challenge when a massive influx of Turkish migrants arrived as part of a "foreign worker" agreement. The introduction of a large and culturally diverse immigrant population made cultural understanding of paramount importance. Culture is an intangible element that …

The Fourth Amendment And Cyberspace: Conflict Or Cohesion?, Federico Alberto Cantón

Dissertations and Theses

The purpose of the study was to determine how the Fourth Amendment is treated in the age of the internet. To determine the degree of the significance of this relationship a comparative approach is used. Court opinions from cases involving other technological innovations and the Fourth Amendment were examined and their reasoning was compared to that of cases involving the internet and the Fourth Amendment. The results indicated that contrary to some fears that the internet would require a different approach with respect to the law it actually did not present many novel barriers to its application. The principle conclusion …

Investigating Student Understanding Of The Law Of Conservation Of Matter, Shirley Lynn Tremel

Dissertations and Theses

The purpose of this study was to gather information about how students learn the foundational concept of conservation of matter during a non-chemistry unit on the rock cycle. The unit covered the rock cycle, rock types, and the law of conservation of matter and took place in a sixth grade classroom of 30 students. A mixed methods, quasi-experimental, pre-post, delayed post design was used to measure student understanding of the concept of conservation of matter as it relates to the rock cycle. Students made significant learning gains from pre-test to post-test and showed mastery in less complex subject areas, but …

Impacts Of Rhizosphere Co₂ On Root Phosphoenolpyruvate Carboxylase Activity, Root Respiration Rate And Rhizodeposition In Populus Spp., Dawn Marie Matarese

Dissertations and Theses

Roots live in and have evolved in a high carbon dioxide (CO₂) environment, yet relatively little research has been conducted on the impacts of soil dissolved inorganic carbon (DIC) on root metabolism. In this thesis, I explore the impacts of root-zone DIC on whole plant biomass accumulation, water use efficiency, and above-ground gas exchange. In addition, I explore the impacts of root-zone DIC on root processes: root PEP-Carboxylase activity, root respiration rate and root exudation of Krebs cycle organic acids.

Root-zone DIC did not impact biomass accumulation, leaf gas exchange parameters or water use efficiency under the growth conditions examined. …

The Effect Of Role Models On The Attitudes And Career Choices Of Female Students Enrolled In High School Science, Stephanie Justine Van Raden

Dissertations and Theses

Girls who have high aptitude in math are not entering careers related to science, technology, engineering, and math (STEM fields) at the same rate as boys. As a result, female students may have fewer employment opportunities. This study explores one potential way to reduce the gap between male and female career aspirations and choices. Specifically, it looks at the impact of bringing women with careers in math- and science-related fields into high school classrooms as role models. The study uses surveys to measure pre- and post-visit perceptions of science and scientific work as well as student's short-term interest in math …

Hydrogeology Of The Mckinney Butte Area: Sisters, Oregon, Joshua Andrew Hackett

Dissertations and Theses

McKinney Butte, a late Tertiary andesite vent and flow complex, is located near the town of Sisters, Oregon, in the upper Deschutes Basin, and is situated along the structural trend that forms the eastern margin of the High Cascades graben (Sisters fault zone and Green Ridge). Rapid development and over appropriated surface water resources in this area have led to an increased dependence upon groundwater resources. A primary concern of resource managers is the potential impact of expanding groundwater use on stream flows and spring discharge. Two sets of springs (McKinney Butte Springs and Camp Polk Springs) discharge to Whychus …

A Study Of Compensation For Face-Threatening Acts In Service Encounters In Japan And The United States, Miki Murakami

Dissertations and Theses

This study examines how people compensate for their inability to accommodate the needs of others in service encounters. Being unable to meet others' needs violates the positive face of one of the participants in a discourse. Many previous studies on speech acts demonstrate how people control their utterances to avoid causing a face-threatening act. However, the language behavior that follows a face-threatening act has not yet received much focus. This paper looks at two different kinds of data in Japan and the United State (hereafter "U.S.") using two different approaches: observation and role-play. In the first, the observational phase, the …

Prestructuring Multilayer Perceptrons Based On Information-Theoretic Modeling Of A Partido-Alto-Based Grammar For Afro-Brazilian Music: Enhanced Generalization And Principles Of Parsimony, Including An Investigation Of Statistical Paradigms, Mehmet Vurkaç

Dissertations and Theses

The present study shows that prestructuring based on domain knowledge leads to statistically significant generalization-performance improvement in artificial neural networks (NNs) of the multilayer perceptron (MLP) type, specifically in the case of a noisy real-world problem with numerous interacting variables.

The prestructuring of MLPs based on knowledge of the structure of a problem domain has previously been shown to improve generalization performance. However, the problem domains for those demonstrations suffered from significant shortcomings: 1) They were purely logical problems, and 2) they contained small numbers of variables in comparison to most data-mining applications today. Two implications of the former were …

Polymer-Based Photoactive Surface For The Efficient Immobilization Of Nanoparticles, Polymers, Graphene And Carbohydrates, Jing Yuwen

Dissertations and Theses

This thesis focuses on developing a new photocoupling surface, base on polyallyamine (PAAm), to increase the efficiency of the photocoupling agent perfluorophenyl azide (PFPA) in the immobilization of nanoparticles, carbohydrates and graphene. Extensive studies have been carried out in our lab on the covalent immobilization of polymers and graphene using PFPA-functionalized surfaces. Here we show that PAAm-based PFPA surface can be used to efficiently immobilize not only graphene and polymers but also nanomaterials and small molecules. This was accomplished by first silanizing silicon wafers with PFPA-silane followed by attaching a thin film of PAAm by UV radiation. Treating the PAAm …

Chronology And Ecology Of Late Pleistocene Megafauna In The Northern Willamette Valley, Oregon, Daniel Mcgowan Gilmour

Dissertations and Theses

This study is an investigation of the timing of extinction of late Pleistocene, large bodied mammalian herbivores (megafauna) and of the environment in which they lived. The demise of the megafauna near the end of the Pleistocene remains unexplained. Owing to potential human involvement in the extinctions, archaeologists have been particularly concerned to understand the causes for faunal losses. Our current lack of understanding of the timing and the causes of the extinctions in North America may result from a deficiency in understanding the histories of each individual species of extinct animal on a local level. Detailed regional chronologies of …

Physical And Electrical Characterization Of Triethanolamine Based Sensors For No₂ Detection And The Influence Of Humidity On Sensing Response, Zachariah Marcus Peterson

Dissertations and Theses

Triethanolamine (TEA) is a semiconducting polymer which exhibits a resistance change when exposed to various gases. The polymer also exhibits a number of reactions with nitrogen dioxide, with the reaction products being heavily dependent on the presence or absence of water vapor. Previous studies have attempted the incorporation of a TEA-carbon nanoparticle composite as the active sensing layer in a chemresistive sensor for detection of NO₂. The incorporation of carbon nanoparticles in the polymer nanocomposite was thought to amplify the sensor's response. There are a number of chemical reactions that can occur between TEA and NO₂, with the reaction products …

Who Gender-Bends And Why? A Qualitative Study Of World Of Warcraft, Clairellyn Rose Gregory

Dissertations and Theses

According to a 2009 study, 68% of American households played video games (Entertainment Software Association). With this number continually on the rise, video games and their cultures are in need of further scholarly exploration. A video game of particular interest is a massive online game known as World of Warcraft, drawing over twelve million players worldwide (Blizzard Entertainment, 2010). With a cyberspace-based culture, World of Warcraft exposes its players to phenomenon that are unique to it, and thereby not easily understood through the same measures and evaluations offered by society at large. One such phenomena is that of gender, or …

Gender, Culture, And Prison Classification: Testing The Reliability And Validity Of A Prison Classification System, Aimée Ryan Bellmore

Dissertations and Theses

Research consistently shows actuarial classification instruments have equal or higher predictive validity than clinical judgment and can lead to more ethical and fair treatment of incarcerated men and women (Austin, 1983, 1986; Bonta, 2002; Clements, 1981; Holsigner, Lowenkamp, & Latessa, 2006; Meehl, 1954; Salisbury, Van Voorhis, & Spiropoulos, 2009). Best correctional practice recommends all objective classification systems are tested for reliability and validity to ensure they are effective for the population they intend to serve (Austin, 1986; Holsinger et al., 2006; Salisbury et al., 2009). This study examined the reliability and validity of the classification and assessment instruments currently used …

Improving Hypothesis Testing Skills: Evaluating A General Purpose Classroom Exercise With Biology Students In Grade 9., Michael Gregg Wilder

Dissertations and Theses

There is an increased emphasis on inquiry in national and Oregon state high school science standards. As hypothesis testing is a key component of these new standards, instructors need effective strategies to improve students' hypothesis testing skills. Recent research suggests that classroom exercises may prove useful. A general purpose classroom activity called the thought experiment is proposed. The effectiveness of 7 hours of instruction using this exercise was measured in an introductory biology course, using a quasi-experimental contrast group design. An instrument for measuring hypothesis testing skill is also proposed. Treatment (n=18) and control (n=10) sections drawn from preexisting high …

Calcium And Redox Control Of The Calcium Release Mechanism Of Skeletal And Cardiac Muscle Sarcoplasmic Reticulum, Laura Jean Owen

Dissertations and Theses

The sarcoplasmic reticulum is an internal membrane system that controls the Ca²⁺ concentration inside muscle cells, and hence the contractile state of both skeletal and cardiac muscle. A key protein that that regulates the Ca²⁺ concentration in this membrane is known as the calcium release channel (CRC). The effects on Ca²⁺ dependent activation is of major importance in the study of CRC since other channel modifiers cannot effect the channel in the absence of Ca²⁺, or they require Ca²⁺ for maximum results. In this study of the high-affinity Ca²⁺ binding site, expected increases in total binding and shifts in the …

Proposal And Analysis Of Demagnetization Methods Of High Voltage Power System Transformers And Design Of An Instrument To Automate The Demagnetization Process, Nathanael Jared Makowski

Dissertations and Theses

Present demagnetization methods for large power system transformers are time consuming and can be dangerous to persons performing demagnetization. The work of this thesis was to develop improved demagnetization methods and to construct an automated instrument that would implement the methods developed. One previously developed method was analyzed for effectiveness. Then, two new methods for demagnetization were developed and also analyzed for effectiveness. An automated test instrument prototype was redesigned to be able to accommodate these methods and to improve the safety of the user. The previously developed method attempts demagnetization based on current flow behavior characteristics. The first new …

Using Archaeological Fish Remains To Determine The Native Status Of Anadromous Salmonids In The Upper Klamath Basin (Oregon, Usa) Through Mtdna And Geochemical Analysis, Alexander E. Stevenson

Dissertations and Theses

Within the Upper Klamath Basin, Oregon, the native status of anadromous salmonids (Oncorhynchus spp.) has been a long standing question. Ongoing efforts to establish if these fish were native to the region prior to the construction of the Copco I Dam on the Klamath River (c.1917) have relied on sparse, contradictory and sometimes unreliable historic documentation and informant testimony. Current restoration projects with very high financial and social costs necessitate accurate and reliable data on salmonid species which once called the region home. Often, archaeolofaunal remains present a novel way to determine species present in an area prior to …

Evolving Nano-Scale Associative Memories With Memristors, Arpita Sinha

Dissertations and Theses

Associative Memories (AMs) are essential building blocks for brain-like intelligent computing with applications in artificial vision, speech recognition, artificial intelligence, and robotics. Computations for such applications typically rely on spatial and temporal associations in the input patterns and need to be robust against noise and incomplete patterns. The conventional method for implementing AMs is through Artificial Neural Networks (ANNs). Improving the density of ANN based on conventional circuit elements poses a challenge as devices reach their physical scalability limits. Furthermore, stored information in AMs is vulnerable to destructive input signals. Novel nano-scale components, such as memristors, represent one solution to …

Development Of An Ultra-Lightweight Buckling-Restrained Brace Using Analytical And Numerical Methods, John Andrew Tinker

Dissertations and Theses

An ultra-lightweight buckling-restrained brace (ULWBRB) is developed using a highly ductile aluminum core and FRP restrainer. Utilization of lightweight materials results in a BRB that is 25% the weight of traditional mortar-filled tube varieties allowing easy installation in small to medium sized buildings requiring seismic retrofit without the need for heavy equipment. Construction utilizes commonly stocked materials able to be customized for required strength, drift, and geometry limitations. Analytical single degree of freedom (SDOF) and Euler buckling models are compared with published equations to determine the required restrainer stiffness (RRS). SDOF models yield RRS values 200% higher than the Euler …

A Feasibility Study Of Model-Based Natural Ventilation Control In A Midrise Student Dormitory Building, Steven James Gross

Dissertations and Theses

Past research has shown that natural ventilation can be used to satisfy upwards of 98% of the yearly cooling demand when utilized in the appropriate climate zone. Yet widespread implementation of natural ventilation has been limited in practice. This delay in market adoption is mainly due to lack of effective and reliable control. Historically, control of natural ventilation was left to the occupant (i.e. they are responsible for opening and closing their windows) because occupants are more readily satisfied when given control of the indoor environment. This strategy has been shown to be effective during summer months, but can lead …

The Role Of Feedback In The Assimilation Of Information In Prediction Markets, Richard Donald Jolly

Dissertations and Theses

Leveraging the knowledge of an organization is an ongoing challenge that has given rise to the field of knowledge management. Yet, despite spending enormous sums of organizational resources on Information Technology (IT) systems, executives recognize there is much more knowledge to harvest. Prediction markets are emerging as one tool to help extract this tacit knowledge and make it operational. Yet, prediction markets, like other markets, are subject to pathologies (e.g., bubbles and crashes) which compromise their accuracy and may discourage organizational use.

The techniques of experimental economics were used to study the characteristics of prediction markets. Empirical data was gathered …

Power, Knowledge, Animals, Lisa Johnson

Dissertations and Theses

Although Foucault did not address the question of the animal, he asserted the assessment of whether a new politics of truth can be constituted as "the essential political problem" (1980, p. 134). Though the "essential political problem" may be considered as it relates to the politics of truth about animals, a Foucaultian perspective does not allow a prediction in response, other than the recognition that change may occur. What is understood to be "true" about animals may change if the relationships between events that exist at a given time ("conditions") require the emergence of a different way of knowing. This …

Study Of The Performance And Characteristics Of U.S. Academic Research Institution Technology Commercialization (Aritc), Jisun Kim

Dissertations and Theses

This dissertation aims to provide a better understanding of the technology licensing practices of academic research institutions. The study identifies time durations in licensing and incorporates these into a model to evaluate licensing performance. Performance is measured by the efficiency of an institution's technology licensing process and efficiency changes over time, using Association of University Technology Managers annual survey data from 1991 to 2007. Organizational characteristics influencing the licensing performances of 46 U.S. research institutions also are explored. The study resulted in a new approach that integrates the identification of time lags in licensing, analysis of efficiency change, and exploration …

Rebuilding The Architectural History Of The Fort Vancouver Village, Meredith J. Mullaley

Dissertations and Theses

In the mid-19th century, the Fort Vancouver employee Village was one of the most diverse settlements on the Pacific Coast. Trappers, tradesmen, and laborers from Europe, North America, and Hawaii worked and lived within a highly stratified colonial social structure. Their homes have been the site of archaeological research for nearly 50 years, but the architectural features and artifacts have received limited attention. Inspired by an 1845 description of the Village that described houses that were "as various in form" as their occupants, this study examined community-level social relationships in this 19th-century fur trade community through vernacular architecture and landscape. …

An Evaluation Of Moderating Influences Of Employee Proactive Personality: Empowerment And Political Skill, Deborah Kaylee Ford

Dissertations and Theses

An action-orientation within the workplace is often sought out by organizations as a source for competitive advantage. Organizational leaders are increasingly reliant on independently driven employees that will take action without being instructed to do so. Toward this effort, proactive personality has become increasingly popular within the literature as a personality trait associated with an employee's propensity to take charge of situations and demonstrate initiative to make a positive impact. In identifying potential variables that will moderate the effects of proactive personality, a highly relevant construct is empowerment. Proactive personality is thought of as a trait, whereas empowerment can be …

A Quantitative Study Of Teacher Perceptions Of Professional Learning Communities' Context, Process, And Content, Daniel R. Johnson

Seton Hall University Dissertations and Theses (ETDs)

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College Readiness In Palm Beach County: A Comparison Of Educational Outcomes Between Charter And Traditional Public High Schools, Faith Ann Cheek

Seton Hall University Dissertations and Theses (ETDs)

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