Digital Commons Network^™

Connect: Translating Complexity Through Visual Simplification, Ilhee Park

Masters Theses

CONNECT: Translating Complexity through Visual Simplification brings complex data into concise visual systems that encourage ease of access. With a background in Human Factors Engineering, user engagement remains a central focus in my design. Whether reducing barriers to scientific information or untangling deeply complex data, design must contain intuitive concepts without the need for extended explanation. Using bold color and geometric shapes as the core design language to render pictorial narratives, this thesis maps my development as an information designer through modes of gathering, deciphering, and interpreting.

Aesthetic Implications Of Using The Computer Medium In Music, Rodrigo Valente Pascale

Masters Theses

In this thesis, I reflect on the relationship between the materiality of computers and computer music. Marshall McLuhan and Friedrich Kittler had a fundamental role in unraveling how media shape discourse and influence their conveyed message and history. These were important discoveries that built the foundation for the field of Media Studies. Throughout this thesis, I will revisit reflections of researchers who contributed to this field and point out how the medium molds computer music’s history and aesthetics. After reviewing the role of the materiality of computers, I will indicate some aesthetically compelling directions of computer music, which consider features …

Inquiry-Based Teaching And Learning As A Tool For Achieving A Scientifically Literate Future: Combating A Post-Truth World, Lauri Elizabeth Davis

Masters Theses

Truth is under attack across the world. This can be seen in the lies spread by Putin to justify his invasion of Ukraine to the misinformation spread about combatting the COVID-19 virus. The authoritative and trusted nature of science is being undermined by unfounded beliefs and opinion. Many Americans lack an understanding of how science is done nor have basic knowledge about common scientific information. What is needed is to increase the level of scientific literacy in the United States. Inquiry-based teaching and learning has been touted as a way for developing more scientifically literate citizens, because inquiry-based teaching and …

How Do You Define The Watershed? Individual Representations Of The Blackstone River Watershed And Their Roles In Collaborative Watershed Governance, Casey Merkle

Masters Theses

Key leaders of civic environmental stewardship organizations shape collaborative watershed governance. Individuals perceive and construct the watershed through past experiences, feeling, emotion, values, and practices. It is not well known how these individuals perceive and construct their own representations of the watershed and environmental stewardship practices. This thesis explored individuals past experiences, feelings, emotions, values, and practices in the Blackstone River watershed to a) examine the ways in which key leaders of civic environmental stewardship organizations represent the watershed b) understand how individuals think, feel, and engage in environmental stewardship practices and, c) reveal the congruences and incongruencies of individual …

Genetic Structure Of Urban White-Tailed Deer In West Michigan, Jacob David Brand

Masters Theses

In urban areas, green spaces are used by humans and wildlife. The proximity between them can lead to both positive and negative interactions, which can make managing urban wildlife difficult. Managers are challenged due to conflicts between wildlife population sizes that can be naturally supported versus those that are socially tolerable. White-tailed deer (Odocoileus virginianus) thrive in urban environments because their habitat requirements are met within green spaces and backyard vegetation. Matrilineal groups of urban white-tailed deer live within the same areas, at times forming high densities that can lead to the spread of diseases or environmental pests, including hemlock …

A Two-Part Rebuttal Of Probability-Based Arguments Against Christian Theism, David Keith Wilson

Masters Theses

This thesis addresses probability-based arguments (PA) from atheism against theism. This popular form of atheistic argument, rather than arguing that there is no such being as God, instead argues that God’s existence is very improbable. This would imply that the theist is unjustified in their belief, and therefore epistemically obligated to forsake their belief. By pairing a cumulative warrant with Alvin Plantinga’s inside straight argument, it is shown that the theist is under no such obligation. As there are many things that are unlikely as well as true, it can be that theism is both unlikely and true. Therefore, the …

“The Mount Atlas Of Independence”: Forgotten Founder Roger Sherman, Kaitlyn Kenney

Masters Theses

Roger Sherman is perhaps the most important forgotten founder of the United States. Best known for creating the Connecticut compromise which reconciled the VA and NJ plans by having the House of Representatives be based on population and having each state have one vote in the Senate, he also was instrumental throughout the founding. He was the only man to sign and help draft every major founding document of the United States, one of a select group of self-taught founders and a man who served in practically every civil service position imaginable. Born in Massachusetts, Sherman would move to Connecticut …

Modelling And Development Of An Automated Ldpe Autoclave Reactor In Cfd For Revealing Ethylene Hot Spots, Eric Turman

Masters Theses

Computational Fluid Dynamics (CFD) was employed to develop a rigorous model of a low-density polyethylene (LDPE) autoclave reactor. Different numerical settings within the solver were evaluated to minimize false diffusion and to reflect the sensitive heat generation taking place during free radical polymerization. The rigorous CFD model employed reaction kinetics, Proportional Integral Derivative (PID) automated thermal management, and a rotating stirrer shaft. Validation was carried out to determine the sensitivity to time-step size, turbulence model, and grid resolution. Data were compared to an industrial scale plant autoclave to guide the development of CFD. Time-step independence was confirmed by comparing the …

Progressive Christianity: The Postmodern Mutation Of Theological Liberalism, Lisa Dundov

Masters Theses

The intention of this thesis is to historically track Liberal Christianity, distinguishing its different shapes, dissecting its current form of Progressive Christianity, and then refute its tenets by holding them to the standard of orthodox Christianity. This project is organized into a chronological, historical approach to Liberal Christianity followed by a comparative approach to Progressive Christianity and orthodox Christianity. The historical research aims to identify and connect common, theologically liberal elements, a distinct man-centered theology, across different historical horizons, including the delineation of modernity, postmodernism, secularism, and humanism, which are influenced and shaped by theological liberalism. Focusing on the current …

The Progress Of Power: A Narrative Review Of The Practical Progression Of Running Power Assessment And Application, Andrew David Fields

Masters Theses

Power has revolutionized endurance athletics. Power is a function of the amount of force produced in a certain amount of time. Utilized correctly, it can be an effective metric of effort during endurance activities. Cycling saw the first fruits of this metric in the 1980s and 1990s with Tour de France athletes and has continued to provide immense benefits to cyclists. Power when applied to running, however, has seen a much slower progression toward effective use. Various attempts in the 1970s and 80s to use calculations to express running power as a function of multiple different kinematic variables proved futile. …

Development Of A Ppg Sensor Array As A Wearable Device For Monitoring Cardiovascular Metrics, Jose Ignacio Rodriguez-Labra

Masters Theses

Wearable devices with integrated sensors for tracking human vitals are widely used for a variety of applications, including exercise, wellness, and health monitoring. Photoplethysmography (PPG) sensors use pulse oximetry to measure pulse rate, cardiac cycle, oxygen saturation, and blood flow by passing a light beam of variable wavelength through the skin and measuring its reflection. A multi-channel PPG wearable system was developed to include multiple nodes of pulse oximeters, each capable of using different wavelengths of light. The system uses sensor fusion along with a machine learning model to perform feature extraction of relevant cardiovascular metrics across multiple pulse oximeters …

Dynamic Maneuvers For Satellite On-Orbit Servicing Utilizing Novel Continuum Robotics: Development & Experimentation, Nathan Dalton

Masters Theses

Robotic on-orbit servicing is a developing technology that seeks to increase the longevity and repairability of faulty or aging resident space objects. In this research, the development of a flexible continuum manipulator for a small satellite system that performs low-complexity on-orbit servicing or debris removal is presented. Derivations of manipulator kinematics are described in detail, a non-linear control scheme has been developed, and the accuracy and servicing applications for the prototype are evaluated and discussed. The manipulator has been tested on an air-bearing dynamics simulator, and the results are extensively analyzed. System recommendations and future work suggestions are presented.

Autonomous Eco-Driving With Traffic Light And Lead Vehicle Constraints: An Application Of Best Constrained Interpolation, Yara Hazem Mohamed Mahmoud

Masters Theses

Eco-Driving is a critical technology for improving automotive transportation efficiency. It is achieved by modifying the driving trajectory over a particular route to minimize required propulsion energy. Eco-Driving can be approached as an optimal control problem subject to driving constraints such as traffic lights and positions of other vehicles. Best interpolation in a strip is a problem in approximation theory and optimal control. The solution to this problem is a cubic spline. In this research we demonstrate the connection between Eco-Driving and best interpolation in the strip. By exploiting this connection, we are able to generate optimal Eco-Driving trajectories that …

Instructor Selection And Use Of Virtual Field Experiences In College Geoscience Course, Kristen Foley

Masters Theses

Virtual Field Experiences (VFEs) are a growing supplement and gateway to traditional fieldwork in the geosciences. With VFEs becoming more accepted for use in college geoscience courses, how instructors find and choose VFEs for their students is critical to creating greater accessibility and future resources. VFEs that are not easily accessed by instructors may go unused, and the effort put into making them would have been wasted. This phenomenological descriptive study utilized five focus groups of college geoscience instructors in the United States. Each 1-to-1.5-hour focus group session of 3-7 participants took place on video conferencing software, which was recorded …

Short-Term 2d And 3d Geomorphic Change Detection At A Public Park On Lake Michigan Using Uas Remote Sensing Techniques, Scott Patrick Fitzgerald

Masters Theses

The high-water level of Lake Michigan (LM) in the past few years has led to significant periods of erosion and increased the risk to private property owners on the coast. To cope with this, many property owners on the coast of LM have constructed coastal protections, some opting for seawalls. Previous studies have assessed the effects of seawalls but disagreed on their impacts, and only laboratory studies were able to establish their range of influence. Using a different method to study their effects will be pertinent to understanding them.

This research aims to use a higher temporal and spatial resolution …

Parallel Resource Defined Fitness Sharing: A Study On Parallel Optimizations For Niching Algorithms, Blayne A. Rogers

Masters Theses

The exploitation of niches by genetic algorithms (GAs) is a computationally expensive, but effective, methodology for solving complex open problems and real-world applications. Niching, differentiated on the modality of sharing, casts problems in terms of the specific resources available. These concepts arise from the broader natural algorithms that encapsulate the ideas and theories used in artificial intelligence. In remediating the computational costs, a study on exploiting niche-defined parallel structures is performed in the contest of the resourcedefined fitness sharing (RFS) algorithm.

Sharing is a natural algorithm paradigm that emulates the use of resources within an environment or population. Defining these …

An Abductive Argument From Depression And Anxiety To Christian Personal Holiness, Kelly Douglas Burchett

Masters Theses

The science on pathological depression and anxiety (D&A) describes religion and spirituality's (R/S) insulating and immunizing effects in roughly 72 to 85 percent of all relevant articles. But the descriptivism of science cannot assign any normative value to a theological worldview. Deductive logic favors theism via Leibnizian contingency, Kalām cosmology, objective morality, fine-tuning of the universe, and abstract conceptualism. The information in DNA, the irreducible complexity of intracellular machinery, the improbability of folded proteins, and the support for common modular design over common ancestry establish a design inference for all of life. Unguided naturalistic simulations fail to surmount the complexity …

Survey Of Diatom Periphyton Assemblages In Lake George, Joy Jackson

Masters Theses

Lake George is an oligotrophic lake that has been monitored by the International Biological Monitoring Program (IBM) since the 1960s. The 51 km long lake is separated into two deep basins, one in the south where the major stream inputs are located, and one in the north where the lake feeds the La Chute River, which empties into Lake Champlain. The two basins are separated by a shallow channel named the “Narrows.” The southern basin has experienced a higher level of development than the northern basin. The aim of this study is to characterize the diatom assemblages in the northern …

Integrating Temperature Dependence Into A Microstructure-Sensitive Fatigue Model For Titanium Alloys, Jared Michael Darius

Masters Theses

This work seeks to integrate temperature dependence into a microstructure-sensitive fatigue model for titanium alloys produced by both extrusion and electron beam melting (EBM) additive manufacturing, revising and enhancing the MultiStage Fatigue (MSF) model as the foundational model framework. Traditional fatigue modeling has required design engineers to conservatively use a lower-bound estimate of fatigue life predictions given a statistically significant spread of experimental data that can span up to two or sometimes three orders of magnitude for a given test condition. This variation in fatigue data has since been accounted for with the advent of the MSF model, linking individual …

The Benefits Of Offering Classroom Piano Lessons As Part Of The Curriculum In Public Elementary School, Denise Cheeks Mundy

Masters Theses

The purpose of this study is to determine the potential benefits of offering classroom piano lessons as part of the curriculum in public elementary schools. The research reviews the educational, neurological, and cultural potential benefits a child may receive if they study the piano. Further study examines the availability for teachers to receive training in teaching group piano, the methods of setting up a piano classroom, and materials needed for such a program in the school system. Records of the history of group lessons showed that this method of teaching has had periods of success and periods of decline in …

True Pauline Worship Is Trinitarian: A Look At Paul’S Trinitarian Presuppositions, Connie Heberlein

Masters Theses

This thesis seeks to show that true Pauline worship is Trinitarian. Thus, proper Christian worship must be Trinitarian. This work begins by examining the Shema and exploring the unique identity of God presented in the Old Testament and the literature of Second Temple Judaism. Building on this foundation, this work evaluates statements found in Paul’s letters in which Paul reformulates the Shema to include Christ and the Spirit in the divine identity of God. The goal is to understand how the first Christians, who were Jews committed to the exclusive worship of Yahweh, moved from monotheistic worship to Trinitarian worship …

Pd-Based Photocatalysts For Heck C-C Cross-Coupling Reactions, Suha Ali Alshehri

Masters Theses

Heck C-C cross-coupling reaction has been widely employed in synthetic organic chemistry because of its high efficiency and simplicity, however the conventional Heck C-C cross-coupling reaction conditions involve the use of an expensive toxicant phosphine-ligated palladium complexes, and high temperature. To address these drawbacks, a highly efficient, homogeneous photocatalyst based on BODIPY for the Heck C-C cross-coupling reactions of aryl iodide and methyl acrylate in DMF solvent under inert conditions has been developed. The 4-Py-BDP-Pd, 3-Py-BDP-Pd and, 2-Py-BOD-Pd catalysts were synthesized and purified using column chromatography. The optical properties of products and intermediates were studied by UV/vis absorption and fluorescence …

Applying Intensity-Based Methods To Disentangle Microwave Spectra Of Complex Mixtures: Analysis Of Weakly Bound Clusters Of 1,1-Difluoroethylene/Co2, Hannah Fino

Masters Theses

Microwave spectroscopy is used to study the solvent-solute interactions between molecules of CO₂ and fluoroethylenes by analyzing the formation of weakly-bound clusters in a gaseous mixture. One of the challenges to analyzing microwave spectra obtained for these weakly-bound species is that spectra for individual clusters are mixed together in an original complex spectrum. This prompts development of automated techniques that could separate complex data into subsets of related data to be more easily analyzed.

The techniques developed in this work are founded on intensity-based analyses, following the work of Dr. Robert Field on Extended Cross Correlation (XCC). The XCC …

Hybrid Learning And Standards Based Grading: Fostering Writing Instruction During A Pandemic, Elizabeth Dietz

Masters Theses

Hybrid learning is steadily growing in popularity and showing to be an effective learning modality to accommodate diverse student populations. The pandemic is an unexpected outlier in the overall picture of hybrid learning, and it is helpful to reflect upon best academic practices, including grading methods, to help mitigate loss of learning and to continue to make improvements in pedagogical practices. This thesis explores the relationship between the hybrid learning model and evaluation, specifically Standards Based Grading, and how this combination of methods influences best writing practices. Using reflections gathered from teacher surveys via a case study, it appears the …

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 …

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 …

Particle Swarm Optimization For Critical Experiment Design, Cole Michael Kostelac

Masters Theses

“Critical experiments are used by nuclear data evaluators and criticality safety engineers to validate nuclear data and computational methods. Many of these experiments are designed to maximize the sensitivity to a certain nuclide-reaction pair in an energy range of interest. Traditionally, a parameter sweep is conducted over a set of experimental variables to find a configuration that is critical and maximally sensitive. As additional variables are added, the total number of configurations increases exponentially and quickly becomes prohibitively computationally expensive to calculate, especially using Monte Carlo methods.

This work presents the development of a particle swarm optimization algorithm to design …

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, …

Investigating The Impacts Of Monetary Policy On Income Inequality In Developed Nations: Case Study Of The Euro Area, Japan And The United States, Hector Martinez Garcia

Masters Theses

This paper tries to evaluate the effect that unconventional monetary policy has had on income inequality for the set of Eurozone countries, the United States and Japan using an unbalanced panel data model over the period from 1980 to 2021, first jointly and then individually, using different regressions for each case. Based on the regression model analyzed, the study attempts to analyze the relationship between money supply and income inequality as measured by the Gini index using fixed effects and random effects for our panel data model. The study reveals the importance of the money supply variable in reducing inequality …

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 …