Digital Commons Network^™

Deciphering The Role Of Mitochondrial Physiology And Thermal Acclimation In Shaping Whole Organismal Performance Of An Invasive Forest Pest, Essa Alrashdi

Masters Theses

Environmental factors such as temperature are substantial determinants of the spongy moth, L. dispar, distribution, reproduction, and growth. Accumulating energy reserves at the larval stage is particularly important to L. dispar, since the larvae metamorphose into a fully-grown, non-feeding adult. As non-feeding adults, the energy balance of the pupae must be adequate, to ensure enough energy reserves for adult dispersal, egg maturation and overall persistence of the species in the region. At this stage, environmental temperature also determines daily metabolic demands, and the overall cost of sustaining ecologically relevant activities. Various hypotheses describing a mismatched growth and metabolic …

Does Social Support Mediate The Relationship Between Locus Of Control And Activity Levels?, Leah L. Oglesby

Masters Theses

The aim of the present study is to examine the mediating effect of social support on the relationship between internal locus of control (LOC) and engagement in activity, treating general physical activity and deliberate exercise as specific and separate domains. Two models will be investigated: a domain-general model and an exercise-specific model, the former examining the mediating effect of general social support on the relationship between health locus of control and general physical activity and the latter examining the mediating effect of exercise-specific social support on the relationship between exercise LOC and deliberate exercise engagement. Survey responses from 279 college-aged …

The League Of Nations High Commission For Refugees From Germany After 1935, Sergio Vlahovich

Masters Theses

The League of Nations’ effectiveness as a bureaucratic body has been hotly contested. Almost since its founding, critics of the League viewed its humanitarian and peacekeeping missions as failures. This thesis reevaluates these criticisms by studying the League’s work on behalf of refugees from Germany from the end of 1935 up through the Second World War. The thesis focuses on the activities of the League after James G. McDonald, High Commissioner for Refugees Coming from Germany, resigned in December of 1935 and during the time the Intergovernmental Committee for Refugees (ICR) began its work on the issue of refugees fleeing …

Covid Fears And Social Anxiety In College Students, Clayton Crozier

Masters Theses

The COVID-19 pandemic has been associated with numerous negative mental health outcomes such as social anxiety, and lead to a great deal of uncertainty. Intolerance of Uncertainty is a relatively new concept in the psychology literature and has begun to be studied in the context of anxiety. Literature has found a positive correlation between Intolerance of Uncertainty and several types of social anxiety. With these findings, researchers have begun to examine the COVID-19 pandemic to see how Intolerance of Uncertainty affects people’s mental health during the pandemic. Intolerance of Uncertainty may be a mediator between social anxiety and the fears …

Comparison Of Bigheaded Carp Reproduction In Tributaries Of The Illinois And Wabash Rivers, David J. Yff

Masters Theses

Understanding environmental conditions that support bigheaded carp (Hypophthalmichthys sp.) reproduction in tributary rivers provides key predictions of their invasion throughout the United States. Past research, primarily in larger order rivers, identified factors such as discharge, temperature, and turbidity as main environmental drivers of bigheaded carp reproduction. I used the variable hydrologic conditions between the Illinois and Wabash Rivers to compare environmental conditions between tributaries of each basin, determine which conditions influence bigheaded carp reproduction in tributaries, and predict tributaries likely to support bigheaded carp reproduction. Three tributaries of the Illinois and Wabash Rivers were sampled for ichthyoplankton from …

Differences In The Growth And Bioenergetics Between Centrarchids In A Midwestern Power Plant Lake, Kyle Joseph Rempe

Masters Theses

Black Crappie Pomoxis nigromaculatus and Bluegill Lepomis macrochirus are popular sportfishes that co-occur in similar bodies of water throughout most of the Central and Eastern United States but have distinct thermal physiologies. L. macrochirus is often found in warmer regions of freshwater reservoirs, where P. nigromaculatus tends to exploit cooler regions, especially in power plant cooling reservoirs. The coal-fired Coffeen Power Station ceased energy production in October 2019, providing an ideal scenario to study the organismal effects of the sudden shift in thermal regime. Previous studies showed that P. nigromaculatus inhabited the less thermally-impacted areas of Coffeen Lake, whereas L. …

The Effects Of Online Anti-Bias Training On In-Service Educator Multicultural Competence, Kaeli O'Donnell

Masters Theses

The student population in the United States is becoming increasingly diverse, while the teaching base remains primarily white and female. One skill that helps educators form connections with students and decrease their biases is cultural competence. Thus, educators are often encouraged (and at times required) to participate in professional development training to increase their knowledge in this area. Although previous research has examined educator benefits from professional development trainings in general, and from trainings related to cultural competence, there is limited research into the benefit of online trainings intended to increase educator cultural competence. In this study, 17 educators completed …

State Level Trends In Renewable Energy Procurement Via Solar Installation Versus Green Electricity, Eric Michael Hanson

Masters Theses

“In the past 5 years, consumer options for procuring renewable energy have increased, ranging from rooftop solar installation to utility green pricing to Community Choice Aggregation. These options vary in terms of costs and benefits to the consumer as well as grid integration implications. However, little is known regarding how the presence of a wide range of options for utility-scale renewable procurement affects demand for distributed residential solar installations. In theory, there are three possible relationships, (1) positive correlation, where utility-scale and distributed resources complement each other to increase overall production, (2) negative correlation, where utility-scale and distributed resources are …

Developing A Vr Training Model For Improving Transportation Safety Protocols For Rural Areas, Emmanuel Olumide Adeosun

Masters Theses

"This research evaluated the effectiveness of using simulated virtual reality driving environments to improve transportation safety in rural areas. The transportation accident fatality rate is more than double the national average in rural areas and highlights an important opportunity to address these challenges through improved safety protocols and investments. A review of the literature revealed high frequency scenarios that contributed the most to fatality or injury accidents. Virtual reality driving simulations were created based on these high frequency events using a specified rural roadway identified with the assistance of the Missouri Department of Transportation. Scenarios considered weather-related conditions, such as …

Comprehensive Evaluation Of Novel Medium-Temperature And High-Temperature Resistant Re-Crosslinkable Preformed Particle Gels For Conformance Control, Zhanmiao Zhai

Masters Theses

"Gel treatment has been widely used to control excessive water production and improve oil recovery in mature oilfields. In comparison to traditional preformed particle gel (PPG), re-cross linkable preformed particle gel (RPPG) has a significant advantage in treating abnormal features such as open fractures, fracture-like channels, and void space conduits (VSC). This research provides a comprehensive evaluation of two novel RPPG products developed in our lab: medium-temperature resistant RPPG (MT-RPPG) for a Middle East reservoir and a high-temperature resistant RPPG (HT-RPPG) for North Sea reservoirs (130 ^oC).

We assessed the effect of the monomer types and concentration, pH, salinity, …

Study Of Contamination Resulting From Historical Mining Within The Old Lead Belt: Mineral Fork Watershed, 2021-2022, Tessa Nicole Mortensen

Masters Theses

“The Old Lead Belt in Missouri has been mined extensively over the past two hundred years, and with historical mining practices often not meeting modern environmental protection standards many areas have significant soil and water contamination as a result. This study focuses on the Mineral Fork River’s watershed in Washington County, Missouri, which includes portions of four separate Superfund sites. In this study, we exam the impact of historical mining on the health of alluvial systems, as evaluated by lead, zinc, and barium (barite) concentrations in the suspended and sediments within tributaries of the Mineral Fork River system. To relate …

Zinc Plating From Alkaline Non-Cyanide Bath, Abdul J. Mohammed

Masters Theses

“Alkaline non-cyanide zinc plating baths are preferred when trying to avoid the toxicity of cyanide baths or corrosivity of acid baths. Without additives, alkaline zincate baths produce powdery non-adherent deposits which have no use in commercial plating. Additives must be added at optimum concentrations to produce adherent, bright and uniform zinc deposits. In this study electrochemical tests were used to determine effects of additives on cathodic polarization, throwing power and morphology of deposits. Current density distribution in a unique bath of 37.5 g L^-1 Zn and 210 g L^-1 NaOH was modelled using COMSOL and validated two plating …

Several Problems In Nonlinear Schrödinger Equations, Tim Van Hoose

Masters Theses

“We study several different problems related to nonlinear Schrödinger equations….

We prove several new results for the first equation: a modified scattering result for both an averaged version of the equation and the full equation, as well as a set of Strichartz estimates and a blowup result for the 3d cubic problem.

We also present an exposition of the classical work of Bourgain on invariant measures for the second equation in the mass-subcritical regime”--Abstract, page iv.

A Convolutional Neural Network (Cnn) For Defect Detection Of Additively Manufactured Parts, Musarrat Farzana Rahman

Masters Theses

“Additive manufacturing (AM) is a layer-by-layer deposition process to fabricate parts with complex geometries. The formation of defects within AM components is a major concern for critical structural and cyclic loading applications. Understanding the mechanisms of defect formation and identifying the defects play an important role in improving the product lifecycle. The convolutional neural network (CNN) has been demonstrated to be an effective deep learning tool for automated detection of defects for both conventional and AM processes. A network with optimized parameters including proper data processing and sampling can improve the performance of the architecture. In this study, for the …

Pressure Relief Wells: Analysis Of Subsurface Heterogeneity To Evaluate Relief Well Locations For Mississippi River Levees, Emma Marie Young

Masters Theses

“When designing pressure relief well systems, it is imperative to understand what major geomorphology and heterogenies features are present, such as buried oxbow lakes, especially when the feature is parallel to the source, such as the Mississippi River. When present, there is a notable greater increase in head pressures, especially on the landward tow of the levee. This can cause erosional features that originally thought of to have been protected from by installing pressure relief wells. When comparing the effective hydraulic conductivities of horizontal clay layers and vertical clay layers spanning the length of the model, little to no noticeable …

An Examination Of The Relationship Between Fear Of Evaluation, Social Anxiety, And Depression, Michelle Ingraffia

Masters Theses

This study explores fear of negative evaluation (FNE) and fear of positive evaluation (FPE) across social anxiety and depression. The following assessment tools were used to measure fear of positive evaluation, fear of negative evaluation, social anxiety, and depression: Fear of Positive Evaluation Scale, Brief Fear of Negative Evaluation - Straightforward, Liebowitz Social Anxiety Scale – Self Report, The Center for Epidemiological Studies Depression Scale – Revised. A sample of two hundred and thirty-one participants completed forms online via Amazon Mechanical Turk. Social anxiety was correlated positively with both FNE and FPE; likewise, depression was correlated positively with both FNE …

Exploring The Special Education Classroom Context And Experiences Before And During Covid-19, Claire E. Smith

Masters Theses

During the last two and half years, school districts and special education programs have experienced a situation that turned the world of education upside down: the COVID-19 pandemic. Due to the pandemic, teachers, administration, families, and students had to maneuver a new way of education and achieving student success with different learning modalities, such as remote learning. This thesis focuses on a functional life skills classroom and how the context of the classroom changed after the start of the COVID-19 pandemic using autoethnographic methods. This paper was written to display how students in special education and their teachers adapted to …

Assessing Teachers' Need For Classroom Management Training: Can Consultants Link Data To Evidence-Based Practices?, Jessica White

Masters Theses

The present study examined whether 53 observers could use the Five in 20 Observation Tool to accurately identify teachers needing additional classroom management training. The Five in 20 Classroom Observation Tool includes 21, evidence-based classroom management strategies, critical to effective classroom management. Fifty-three observers were recruited to complete 42 (42 primary observers and 11 reliability observers), 20-minute observations using the Five in 20 Tool. Due to the COVID-19 pandemic, 29 observers participated in the recalled format and 24 participated in the live version. There was a statistically significant difference between observers who indicated fewer, or lower quality evidence-based strategies were …

Role Of Feedback And Social Anxiety In Dating Situations, Kanika Singh

Masters Theses

Social anxiety has been linked to both the Fear of Negative Evaluation (FNE) and the Fear of Positive Evaluation, suggesting that receiving feedback (whether positive or negative) is difficult for persons with social anxiety. However, little research has examined whether receiving feedback in an evaluative setting (e.g., dating) can directly affect social anxiety levels. Thus, this study examined whether varying types of feedback (negative, positive, and neutral) can affect the levels of social anxiety for individuals in a dating scenario. Feedback was provided to participants and examined in relation to their levels of FNE and FPE. Participants consisted of undergraduate …

A Variable Node Optimization Model For Byzantine Fault Tolerant Systems, Ian Robert Fulton

Masters Theses

“Byzantine Fault Tolerance (BFT) has been a major subject of study over the last two decades with increasing societal dependance on secure, correct, and reliable computer systems and online services. This research presents a model for high-level optimization of emerging systems that rely on these BFT algorithms and use a variable numbers of decision nodes. The model highlights the relationship between the security of a system and its efficiency. Two experiments were performed to determine system performance by varying the number of compromised nodes, decision nodes, and total nodes. They examine the probability that a transaction will be compromised based …

Man-In-The-Middle Attacks On Mqtt Based Iot Networks, Henry C. Wong

Masters Theses

“The use of Internet-of-Things (IoT) devices has increased a considerable amount in recent years due to decreasing cost and increasing availability of transistors, semiconductor, and other components. Examples can be found in daily life through smart cities, consumer security cameras, agriculture sensors, and more. However, Cyber Security in these IoT devices are often an afterthought making these devices susceptible to easy attacks. This can be due to multiple factors. An IoT device is often in a smaller form factor and must be affordable to buy in large quantities; as a result, IoT devices have less resources than a typical computer. …

Numerical Investigations Of 2-D Magnetic Nozzles On Pulsed Plasma Plumes, Joshua Daniel Burch

Masters Theses

"This research presents studies of a novel type of magnetic nozzle that allows for three-dimensional (3-D) steering of a plasma plume. Numerical simulations were performed using Tech-X's USim® software to quantify the nozzle's capabilities. A2-D planar magnetic nozzle was applied to plumes of a nominal pulsed inductive plasma (PIP) source with discharge parameters similar to those of Missouri S&T's Missouri Plasmoid Experiment (MPX). Argon and xenon plumes were considered. Simulations were verified and validated through a mesh convergence study as well as comparison with available experimental data. Periodicity was achieved over the simulation run time and phase angle samples were …

Using Lake Sediment Chemistry In The Exploration For Nickel Laterite Deposits In Tropical Regions, Gabriela Yvonne Ramirez

Masters Theses

"Developing reliable geochemical indicators to guide the search for ore deposits is a long-standing goal. This particularly applies to tropical regions that are often heavily vegetated which hampers boots-on-the ground exploration efforts. Here we present the preliminary results of a study that investigates the usefulness of lake sediment chemistry in the exploration for nickel laterite ore deposits in tropical regions using Lake Izabal, Guatemala, as a case study. Lake Izabal’s catchment area contains Ni laterite deposits along its northern shore, whereas no Ni-laterite discoveries have been made in the south except for a Ni mine in the southern region that …

Quarantine And Isolation Experiences Of College Students: A Narrative, Brooke Gibson

Masters Theses

The COVID-19 pandemic was an unanticipated phenomenon, with a lack of information surrounding quarantine and isolation experiences in college students and how this impacts their sense of belonging. This qualitative narrative study utilized semi-structured interviews to understand the participants’ experience of isolation at a rural mid-sized university in the Midwest. The research shared the students experiences and showed that participants lacked some sense of belonging whether it was with friends, family, or their institution.

Low-Head Dam Removal Increases Functional Diversity Of Stream Fish Assemblages, Adam Christopher Jones

Masters Theses

Despite the growing number of dam removals to date, very few have been studied to understand their impacts on stream fish communities. Despite being the most common type of dam in the U.S., an even smaller proportion of studies focus on the impacts of low-head dam removals, instead, focusing on the impacts of removal of larger dams. In this study, two previously impounded Illinois rivers were monitored to assess the impacts of low-head dam removal on the functional assemblage of stream fishes. This was accomplished by aggregating fishes into habitat and reproductive guilds, relating community changes to habitat, environmental metrics, …

David Lindsay's A Voyage To Arcturus: An Anti-Fantasy, Bryan Wysopal

Masters Theses

This is a study of David Lindsay’s A Voyage to Arcturus (1920) in which I argue that the novel is an anti-fantasy, that is, a fantasy that negates certain tropes common to the genre as part of the author’s wider intentions for writing. I contextualize Lindsay by comparing him to several authors of his time who also worked in the mode of fantasy, then explain how the generic traits of the novel are handled unconventionally to promote Lindsay’s personal philosophy. I explore Lindsay’s treatment of the basic generic traits of the hero and his quest, the imaginary world, and …

Social Validity And Feasibility Of The Five In 20 Classroom Management Observation Tool, Kaylee Hampton

Masters Theses

The present study aimed to assess the social validity and feasibility of a standardized classroom observation tool intended to assess teachers’ current use of the five features critical to effective classroom management. Forty-three observers who regularly conducted classroom observations (e.g., school psychologists) were recruited to complete 20-min observations in kindergarten through twelfth grade classrooms, and then complete an adapted behavior intervention rating scale to assess their social validity ratings of the tool. Due to COVID-19, observers could either complete a live observation or recall a previously completed observation. Of the 43 observations, 15 were live and 28 were recalled. To …

Staff Perception Of Pbis Implementation In Illinois School Districts, Dominique Starling

Masters Theses

Behavioral management is a top priority in the educational setting. Historically, schools have implemented a variety of different methods to manage behaviors in schools. One of these methods is punitive punishment, which has led to the school-to-prison pipeline phenomena. The school-to-prison pipeline is a practice in the U.S. public schools that removes students with behavioral issues from educational institutions often resulting in placement in juvenile and criminal justice systems. Through zero tolerance and other punitive disciplinary policies, many youths find themselves dropping out or being expelled from school and eventually in juvenile detention centers and prisons. Research evidence shows that …

Interfacial Electrochemistry In Metallic Film Fabrication, Eric S. Tuala

Masters Theses

An experimental determination of RC constant at the edge and the center of a disk electrode was done using in situ reflectance spectroscopy on a Au electrode immersed in HClO₄ as electrolyte. The RC constant at the edge of the disk electrode was found much smaller than that at the center. Such differences contribute to the selective removal of the deposited Cu on an Au disk electrode.

Furthermore, the electrochemical corrosion of Cu²⁺ towards Co electrode (called cementation reaction) was investigated using a Co/Pt rotating disk electrode. The Open Circuit Potential of Co electrode in CuSO₄ electrolyte …

Self-Compassion And Emotion Regulation As Predictors Of Disordered Eating, Mandira Srivastava

Masters Theses

Disordered eating attitudes and behaviors are becoming widespread, with individuals employing maladaptive compensatory strategies to cope with the distress and dissatisfaction with themselves that they face. Emotion regulation and self-compassion, both are well-researched areas, with their relationships with disordered eating also being an emerging area of interest. However, there is limited literature that has examined the relationships among the three constructs, wherein it has been reported that self-compassion and emotion regulation serve as predictors of disordered eating in individuals. The goal of this study was to look at the connections between emotion regulation and disordered eating, self-compassion and disordered eating, …