Digital Commons Network^™

Multi-Point Flux Approximations Via The O-Method, Christen Leggett

Master's Theses

When an oil refining company is drilling for oil, much of the oil gets left behind after the first drilling. Enhanced oil recovery techniques can be used to recover more of that oil, but these methods are quite expensive. When a company is deciding if it is worth their time and money to use enhanced oil recovery methods, simulations can be used to model oil flow, showing the behavior and location of the oil. While methods do exist to model this flow, these methods are often very slow and inaccurate due to a large domain and wide variance in coefficients. …

Terrorism And Organized Crime: An Analytical Study From An International Law Perspective, Leila Mejdoubi

Master's Theses

With the spread of terrorism and its growing risks since the start of the 21^st century, a wide range of reports and studies have emerged. This funding comes from a special relationship between terrorist organizations, organized crime syndicates, and their cooperation with each other, which has enabled terrorist organizations in particular to carry out recruitment efforts and operations alike. It has also fueled an international black market for smuggling and trade in drugs and arms. Under what conditions do violent terrorist groups driven by extreme Islamist ideology collaborate with organized criminal enterprises to generate the requisite resources to pursue …

Supporting Parents In Title I Schools: A Qualitative Study Of Parent Engagement, Vanessa Sanchez

Master's Theses

This qualitative study focuses on how to improve parent engagement in Title I schools from parents’ point of view. The purpose of this project is to understand parent involvement in a Northern California school and how to improve it. This paper offers insights from parents’ perspectives how parents view the education process. The focus is on their experiences and how to support all parents. The lenses of the study is viewed through a critical pedagogy and social cognitive theory. All five of the parents being interviewed had suggestions on how to improve parent engagement in Title I Schools. The three …

A Critical Discourse Analysis Of The National Collegiate Athletic Association Response To The Federal Investigation Into Men’S College Basketball, Max Klein

Master's Theses

On September 27, 2017, the Federal Bureau Investigation (FBI) arrested ten individuals connected to National Collegiate Athletic Association (NCAA) Division I men’s basketball for charges, including bribery, wire fraud, and money laundering. In response to the public release of this investigation, the NCAA formed the Commission on College Basketball (CCB) to address “fairness and opportunity for college athletes, coupled with the enforcement capability to hold accountable those who undermine the standards of our community” (Emmert, 2017). Ultimately, the purpose of this study is to analyze the NCAA’s response to the FBI investigation into men’s college basketball. The creation of the …

The Democratization And Development Of Cell-Free Protein Synthesis, Max Z. Levine

Master's Theses

Cell-free protein synthesis (CFPS) using crude lysates has developed into a robust platform technology over the last 60 years to express numerous types of recombinant proteins. The open-nature, elimination of reliance on cell viability, and focus of all energy towards production of the protein of interest represent substantial advantages of CFPS over in vivo protein expression methods. CFPS has provided new opportunities across a series of research fields that include metabolic engineering, therapeutic and vaccine development, education, biosensors, and many more. In recent years, optimizations of CFPS have even allowed the platform to reach the industrial level of protein production. …

Children's Books As Cultural Products: A Qualitative Study Of Cultural Representation In Hmong And Non-Hmong American Books, Malina Her

Master's Theses

This study examined the type of cultural practices and values depicted within Hmong American children’s books in comparison to non-Hmong American children’s books from the United States. The purpose was to explore if prior Hmong traditional practices and values reflective of American individualism would extend to Hmong children’s books. Thirty best-seller children’s books were coded using two checklists, one focused on Hmong traditional practices and the other on American values. Results showed that Hmong traditional practices underscored by Hmong adolescents in prior research somewhat extended to Hmong children’s books. Moreover, in some respects Hmong children’s books displayed similar numbers of …

Effect Of Nicotine Exposure On Fatigue Mechanics Of Murine Arteries, Elizabeth Ho

Master's Theses

Nicotine is an addictive substance found in electronic cigarettes (e-cigarettes) and cigarettes, and the use of such products has growing concern because of the prevalent use by young adults. Nicotine exposure degrades arterial tissue and results in increased arterial stiffness, which is linked to cardiovascular events, such as stroke and myocardial infarction. The hypothesis of this research is that fatigue loading reveals changes to the mechanical behavior of nicotine-treated arteries that is more informatively discriminating than stiffness alone. Ten murine arteries, five untreated and five nicotine-treated, were subjected to cyclic fatigue loading in an open-circumferential configuration by a custom tensometer …

Determination Of Demagnetizing Factors In Nanomagnets By First-Order Reversal Curves And Ferromagnetic Resonance, Karl Scott Muster

Master's Theses

Magnetic reversal in nickel nanowire arrays due to an axial, external magnetic field was studied through first-order reversal curve (FORC) measurement. A general function modeling the observed Preisach distribution was developed using the moving Preisach model. Fitting allowed determination of the sample's demagnetizing field at saturation and modeling magnetic reversal with respect to the internal magnetic field. Magnetization dynamics in the sample were studied through ferromagnetic resonance (FMR) measurement to aid in interpreting FORC fit results. Combining FORC and FMR results yielded the saturation magnetization and effective demagnetizing factors of the sample. Similar analysis was performed for a thin film …

Extended Producer Responsibility And The Environmental Policy Implementation Process In California: A Case Study Of Paintcare, Justin Ian Weiss

Master's Theses

Due to increasing volumes of certain types of waste and the cost of municipal waste management, California and local jurisdictions are pursuing legislation to engage manufacturers in the collection and disposal of the products they manufacture. These legislative frameworks take many forms, but many employ the “producer pays” principle commonly referred to as “extended producer responsibility” (EPR). These policies, which are more common in the European Union, are often contentious and difficult for U.S. governments to pursue, as targeted and influential industries resist policy implementation. The objective of this thesis was to better understand the reasons for the successful implementation …

An Investigation Of The Effects Of Individual Differences On Technology Acceptance In The Workplace, Robert Neil Payne

Master's Theses

The purpose of the current study was to test for moderating effects that conscientiousness, agreeableness, and openness to experience have on relationships in the technology acceptance model. More specifically, the current study tested for previously overlooked moderation effects that these personality traits have on the relationships between behavioral intention and its predictors (i.e. perceived ease of use, perceived usefulness, and subjective norms). A sample of 96 employees from more than 16 industries participated in the study by completing an online survey. Results of the current study displayed a significant moderation effect by agreeableness on the relationship between perceived ease of …

Formation Of Clot Analogs Between Co-Flow Fluid Streams In A Microchannel Device, Sue-Mae Saw

Master's Theses

Hemodynamics plays an important role in the formation of blood clots, for which changes in hydrodynamic stresses and transport phenomena can initiate or inhibit the clotting process. The fibrin network is highly influential in the structural mechanics of a clot. This work demonstrated an ability to produce clot analogs at the boundary between co-flow fluid streams, and investigated the dependence of clot shape and density distribution on flow conditions. The time evolution of fibrin clots formed in microchannel flow was investigated using fluorescence imaging. Clots were formed in a polydimethylsiloxane (PDMS) microfluidic device which consisted of a Y-shaped microchannel with …

Development Of A Computational Elbow Joint Model To Analyze The Effects Of Synovial Fluid On Articular Cartilage During Joint Motion, Abhishek Yellapragada

Master's Theses

While significant advances have been made in the development of computational elbow joint models, fluid-structure interaction (FSI) in the elbow joint has not yet been explored. The objective of this study is to develop a computational elbow joint model to simulate the effects of synovial fluid on articular cartilage during flexion, extension, pronation, and supination. The model was developed with anatomically accurate 3D bone geometries; articular cartilage geometries that were derived from the 3D bone geometries; ligaments defined as linear springs; muscles embedded as joint non-linear stiffness; and a fluid domain that encompassed the joint articulations with a homogenous, incompressible, …

Stem Cell Based Delivery System In A Non-Regenerative Nail Injury Model, Aundrya Montgomery

Master's Theses

No abstract provided.

A Study On The Simultaneous Nitrification And Denitrification Process Of A Membrane Aerated Bioreactor Augmented By Biowish Aqua, Gavrielle Orman

Master's Theses

Nitrogen pollution is a growing problem that is detrimental to the environment and the economy. Traditional treatment of nitrogen is a multi-stage process, expensive, operationally intensive, and requires large land areas. This research studied the effects of BiOWiSH® Aqua (Aqua), a biological enhancement product, on the simultaneous nitrification and denitrification process in a membrane aerated bioreactor (MABR) to determine if it is a feasible application for wastewater treatment. The MABR used during experimentation was a small-scale batch reactor with a continuous flow of air through a silicone membrane.

The effect of carbon source and concentration on nitrogen removal rates and …

A Feasible And Tailored Nutrition Education Intervention For Middle-Schoolers: Coordination With School Nutrition Program And Preliminary Outcomes., Heidi Karner

Master's Theses

No abstract provided.

Diet Quality And Micronutrient Intake In Long-Term Weight Loss Maintainers, Rebecca W. Pascual

Master's Theses

Objective: This study’s purpose was to examine dietary quality, macronutrient intake, and micronutrient adequacy among long term weight loss maintainers (WLM) in a commercial weight management program.

Methods: Participants were 1,207 WLM in WW (formerly Weight Watchers) who had maintained a 9.1 kg or greater weight loss (29.7 kg on average) for 3.4 years, and had an average BMI of 28.3 kg/m². A control group of weight stable adults with obesity (Controls; N=102) had a BMI of 41.1 kg/m² and 2.3 kg or less weight change over the previous five years.

Results: WLM vs. …

Evaluation Of Chilling Efficiency, Meat Tenderness, And Microbial Analysis Of Broiler Carcasses Using Sub-Zero Saline Solutions, Samira Viliani

Master's Theses

The poultry industry is seeking an advanced chilling system that can improve chilling efficiency, microbial safety, and water consumption without compromising meat quality. The objective of this study was to evaluate the effects of sub-zero saline chilling methods on chilling efficiency, breast fillet tenderness and microbial reduction of broiler carcasses. Following evisceration and rinsing, broiler carcasses were randomly assigned to one of three chilling solutions: 1) 0% salt or ice water control (0% NaCl/0.5^oC), 2) 3% salt (3% NaCl/-1.8^oC), and 3) 4% salt (4% NaCl/-2.41^oC) solutions. Broiler carcasses in sub-zero saline solutions reached the …

Floral Preformation In The Warming Boreal Forest: The Effects Of Temperature On The Development Of Vaccinium Vitis-Idaea, Eileen Schaub

Master's Theses

The boreal forest is experiencing climate change at twice the rate of other regions. Although changes in flowering phenology are a known consequence of warming temperatures, much is unknown about the effects of temperature anomalies on floral development. Boreal angiosperms preform flowers a year or more in advance and are consequently subject to varied environmental conditions across that time. My thesis examines the effects of temperature on floral development in order to understand how boreal taxa will respond to climate change.

Collection of Vaccinium vitis-idaeafrom natural populations in Fairbanks, Alaska was carried out over the growing seasons of 2017 …

Identification Of Factors That Influence The Cell Density Dependent Growth Of Porphyromonas Gingivalis, Archana Palakkal Meethil

Master's Theses

No abstract provided.

Influence Of Endodontic Sealers On Dentin Strength In Endodontically Treated Teeth, Andrew Fossum

Master's Theses

Introduction: Gutta-percha is not compressible and tooth fracture can be initiated when force is applied to the gutta-percha. The aim of this study was to apply a hoop stress to roots which have been obturated with either gutta-percha and no sealer, gutta-percha and AH Plus sealer, gutta-percha and EndoSequence Bioceramic Sealer, gutta-percha and Tetranite®, or Tetranite® and no gutta-percha until fracture occurred and then compared the failure stresses. Methods: Teeth were divided into five groups based on the sealer type used, no sealer used or only sealer used. The teeth were then sectioned into 2mm thickness discs and load was …

Perceptions On The Effectiveness Of Diversity And Inclusion Hiring: Are We Really Getting Ahead? [2019], Deidre D. Pierson

Master's Theses

Diversity and inclusion hiring in NCAA Division III athletic departments has seen some improvement over the last two decades, but questions remain on whether we are really getting ahead. There continues to be a lack of diversity, particularly in private Northeast institutions. The purpose of this study was to determine the perceived effectiveness of hiring practices and initiatives utilized by athletics departments. The study utilized tenants of critical theory which supported the in-depth questioning and centering of the lived experiences of participants. This study used semi-structured interviews of nine Division III female head coaches of women’s sports to examine their …

Heat Activation Of Bacillus Anthracis Persists Over A Seven Day Period, Nathan T. Ross

Master's Theses

Bacteria of the Bacillus genera are capable of forming dormant and resilient cells called spores in response to starvation. Spores can break dormancy in the presence of nutrients in a process called germination. Historically, spores are exposed to sublethal heat treatments to increase the extent and rate of germination. This process is known as heat activation (HA). Previous studies on Bacillus species indicate the effects of HA are reversible after 72 hours. After this time period, the spores must be reactivated. However, spores of Bacillus anthracis, a member of the Bacillus family, have not been tested to see how long …

Metal Related Nanoparticles' Physical Behaviors In Different Physiologica Environments, Muhetaer Tuerhong

Master's Theses

In the past decades, the development of nanotechnology has had tremendous successes in material science. In this technology, the pertinent materials are used at the intermediate scale between individual molecules and their size in the nanometer region(1-100nm) compared to bulk materials. This nanoscale size provides a larger surface area; therefore, nanoparticles would be perfect essential components of nanotechnology. The reduced size of nanoparticles has a larger surface ratio to volume, which can modify their chemical, mechanical, structural, and electrical properties.

In this study, the main goal is to test different metal related nanoparticles, such as CuNPs (Copper nanoparticles), FeNPs (Iron …

Mysci: A New Approach To Teaching Biological Science Laboratories, Korli Alford

Master's Theses

According to the National Science Foundation’s report “Vision and Change in Undergraduate Biology Education: A Call to Action,” project-based learning creates effective graduates and future collaborators. Instructors who are able to adapt their course to meet the unique interests of their students create graduates who are more likely to engage with peers and to retain the information taught throughout the class. The goal of this project was to develop a course based on student-driven, evidence-based learning. Five major and 12 minor, student-selectable labs were implemented in the initial test reported herein. A total of seven undergraduate students and three graduate …

Customization Of Aneurysm Scaffold Geometries For In Vitro Tissue-Engineered Blood Vessel Mimics To Use As Models For Neurovascular Device Testing, Camille D. Villadolid

Master's Theses

Cerebral aneurysms occur due to the ballooning of blood vessels in the brain. Rupture of aneurysms can cause a subarachnoid hemorrhage, which, if not fatal, can cause permanent neurologic deficits. Minimally invasive neurovascular devices, such as embolization coils and flow diverters, are methods of treatment utilized to prevent aneurysm rupture. The rapidly growing market for neurovascular devices necessitates the development of accurate aneurysm models for preclinical testing. In vivo models, such as the rabbit elastase model, are commonly chosen for preclinical device testing; however, these studies are expensive, and aneurysm geometries are difficult to control and often do not replicate …

Application Of Elastodynamic Finite Integration Technique (Efit) To Three-Dimensional Wave Propagation And Scattering In Arbitrary Geometries, Sean M. Raley

Master's Theses

Over several decades, railroad Ultrasonic Testing (UT) industry techniques have primarily been developed through simple analytical modelling and experimental approaches. However, with present-day computational capabilities, we can use numerical techniques like the Elastodynamic Finite Integration Technique (EFIT) to fine-tune systems for complex applications before the fabrication process begins. EFIT is well-established as a useful method in numerical analysis of ultrasonic wave propagation with distinct advantages over the Finite Difference Time Domain method. Several software packages exist that use EFIT as the primary method for simulating the behavior of ultrasonic waves over time in 2 or 3 dimensions, but none of …

Traditional Sounds On Western Instruments: The Use Of Traditional Music Of Mainland Southeast Asia In Western Orchestral Works, Tachinee Patarateeranon

Master's Theses

The cultural preservation of traditional music has become a serious issue in the mainland of Southeast Asia. The impact of political revolution, economic problems, westernization, and modernization have all but eliminated traditional music from its homeland. Western music, on the other hand, is flourishing in the region and has had a strong influence on the transformation of traditional musical genres in order to attract the attention of today’s society. As a result, one way to help traditional music survive in this modern context is to incorporate it with western genres. This research, therefore, aims to demonstrate the effectiveness of integrating …

Werewolves: A Three-Dimensional Content Analysis Of Films From 1980-2014, Jennifer Lewis

Master's Theses

WEREWOLVES: A THREE-DIMENSIONAL CONTENT ANALYSIS OF FILMS FROM 1980 – 2014 revolves around how monsters function in stories. Monsters represent fears and teach social norms. They are often portrayed as “other”, but more recently the werewolf has appeared in media as more sympathetic (Brannon 2016, 21; Gilmore 2008, 362; Hughes 2009, 97). Limited research has systematically studied how werewolves are represented in the media. This content analysis focuses on how major werewolf characters are represented in 20 films.

The analysis showcases werewolf characters in today’s culture and what it means to be a monster by analyzing hybridity. This study presents …

Acting Black: An Analysis Of Blackness And Criminality In Film, Blake Edwards

Master's Theses

This thesis will attempt to answer how films deal with blackness and crime, specifically when intersecting with the concepts of exploitation, appropriation, whiteness and the criminality of the black body. While not entirely the root of the negative perceptions of African-Americans in the United States, the manner in which African-Americans are portrayed in motion picture media influences how their presence is seen in society. This thesis will examine specific films that include elements dealing with the listed factors and what effects they may or may not have.

The Evolutionary Diversity And Biological Function Of Phenazine Metabolite Biosynthesis In Burkholderia Spp, Samuel Hendry

Master's Theses

Burkholderia encompass a group of ubiquitous Gram-negative bacteria that include numerous saprophytes, as well as several species that cause infections in animals, immunocompromised patients, and plants. Some species of Burkholderia produce colored redox-active secondary metabolites called phenazines (Phz). In the model opportunistic pathogen Pseudomonas aeruginosa, phenazines strongly contribute to the competitiveness, formation of biofilms, and virulence in multiple models of infection. Similar depth of knowledge on the diversity, biosynthesis, and biological functions of phenazines in Burkholderiais missing. This project aimed to bridge this gap in knowledge by focusing on phenazine pathways of B. lata and closely related …