Digital Commons Network^™

A Network Of Low-Cost Multi-Pollutant Air Quality Sensors For Evaluating Fine-Scale Exposure Disparity In Twin Cities, Mn, P M Varuni Abhayaratne

Masters Theses

"Poor air quality is detrimental to health and is a leading environmental risk factor for early death globally. The massive scale of urbanization and population growth has led urban air quality to become a global concern as the release of air pollutants into the atmosphere continues to increase. Air quality has traditionally been monitored using reference-grade monitoring stations that are expensive and sparsely distributed. Low-cost sensors can complement existing regulatory networks to provide more spatial detail, capturing fine-scale variations. This study investigates spatiotemporal pollutant patterns, exposure disparities and environmental justice using data collected from a two-year (2019-2021) deployment of a …

Tropospheric Correction For Insar Using Machine Learning, Ngo Hi Kenny Yue

Masters Theses

"Interferometric Synthetic Aperture Radar (InSAR) is a popular technique for studying Earth's surface deformation caused by phenomena like earthquakes and subsidence. However, its accuracy is limited by tropospheric delays caused by water vapor in the atmosphere. This limitation can be overcome by using methods that correct for tropospheric noise, such as statistical, empirical, and predictive approaches. This study explores the potential of using machine learning algorithms to predict the zenith total delay caused by tropospheric effects in InSAR measurements. The study employs two different machine learning algorithms, random forest and neural networks, to learn the relationship between numerical weather prediction …

Optimizing The Placement Of Multiple Uav--Lidar Units Under Road Priority And Resolution Requirements, Zachary Michael Osterwisch

Masters Theses

"Real-time road traffic information is crucial for intelligent transportation systems (ITS) applications, like traffic navigation or emergency response management, but acquiring such data is tremendously challenging in practice because of the high costs and inefficient placement of sensors. Some modern ITS applications contribute to this problem by equipping vehicles with multiple light detection and ranging (LiDAR) sensors, which are expensive and gather data inefficiently; one solution that avoids vehicle-mounted LiDAR acquisition has been to install elevated LiDAR instruments along roadways, but this approach remains unrefined. The eventual development of sixth-generation (6G) wireless communication will enable new, creative solutions to solve …

Rapid-Throughput Analysis Of 1,4-Dioxane In Plants By Centrifugal Sampling And Phytoforensic Analysis For Site Delineation And Assessing Enhanced Rhizodegradation, Anthony Eberechukwu Oha

Masters Theses

"Owing to its broad use and environmental persistence, 1,4-dioxane (dioxane) poses a notable threat to public health and is recalcitrant to traditional remedial systems. Dioxane moves readily in an aqueous environment and is an emerging contaminant in drinking water, surface water, groundwater, and wastewater. The extent of dioxane in the biosphere is also difficult to delineate, particularly in the subsurface. Phytoremediation has demonstrated the potential for dioxane groundwater remediation. Recent findings indicate that plant-microbial symbiosis may be more advantageous for limiting potential transport and transfer into plant tissues and the atmosphere. Bioaugmentation of the rhizosphere paired with soil amendments has …

Computer Vision In Adverse Conditions: Small Objects, Low-Resoltuion Images, And Edge Deployment, Raja Sunkara

Masters Theses

"Computer vision based on deep learning is an essential field that plays a significant role in object detection, image classification, semantic segmentation, instance segmentation, and other applications. However, these models face significant challenges in adverse conditions, such as small objects, low-resolution images, and edge deployment. These challenges limit the accuracy and efficiency of computer vision algorithms, making it difficult to obtain reliable results.

The primary objective of this thesis is to assess the performance of deep learning- based computer vision models in challenging conditions and provide viable solutions to overcome the obstacles. The study will specifically address three key challenges, …

Dynamic Discounted Satisficing Based Driver Decision Prediction In Sequential Taxi Requests, Sree Pooja Akula

Masters Theses

"Ridesharing platforms rely on connecting available taxi drivers to potential passengers to maximize their revenue. However, predicting the stopping decision made by every driver, i.e., the final task performed during a given day, is crucial to achieving this goal. Unfortunately, little research has been done on predicting drivers’ stopping decisions, especially when they deviate from expected utility maximization behavior. This research proposes a Dynamic Discounted Satisficing (DDS) heuristic to model and learn the task at which human agents will stop working for that day, assuming that the human agents are taking sequential decisions based on their preference order. We apply …

Mat: Genetic Algorithms Based Multi-Objective Adversarial Attack On Multi-Task Deep Neural Networks, Nikola Andric

Masters Theses

"Vulnerability to adversarial attacks is a recognized deficiency of not only deep neural networks (DNNs) but also multi-task deep neural networks (MT-DNNs) that attracted much attention in the past few years. To the best of our knowledge, all multi-task deep neural network adversarial attacks currently present in the literature are non-targeted attacks that use gradient descent to optimize a single loss function generated by aggregating all loss functions into one. On the contrary, targeted attacks are sometimes preferred since they give more control over the attack. Hence, this paper proposes a novel targeted multi-objective adversarial ATtack (MAT) based on genetic …

Meta-Analysis Of Mesenchymal Stem Cell Gene Expression Data From Obese And Non-Obese Patients, Dakota William Shields

Masters Theses

"The prevalence of gene expression microarray datasets in public repositories gives opportunity to analyze biologically interesting datasets without running the laboratory aspect in house. Such experimentation is expensive in terms of finances, time, and expertise, which often results in low numbers of replicates. Meta-analysis techniques attempt to overcome issues due to few biological or technical replicates by combining separate experiments together to increase statistical power. Proper statistical considerations help to offset issues like simultaneous testing of thousands of genes, unintended hybridization, and other noises.

Microarrays contain light intensities from tens of thousands of hybridized probes giving a measure of gene …

Investigation Of Defect Production And Displacement Energies In Wurtzite Aluminum Nitride, Sean Anderson

Masters Theses

"Aluminum Nitride is an active element of sensors that monitor the performance and well-being of the nuclear reactors due to its piezoelectric properties. Yet, the variations of its properties under irradiation are largely unexplored. We report the results of the molecular dynamics simulations of the structural changes in AlN under irradiation via the knock-on atom technique. By creating and evolving the irradiation cascades due to energetic particle interaction with the atom of the crystalline lattice we determine the rate of the defect production as a function of the deposited energy. Further, we determine a displacement energy, a key characteristic that …

Static I-V Curve And Aging Test For Pim Characterization In Metallic Contacts, Kalkidan Anjajo

Masters Theses

"Spring clips and fabric-over-foams (FOFs) are widely used in mobile devices for electrical connection purposes. However, the imperfect metallic connections tend to induce passive intermodulation (PIM), resulting in a receiver sensitivity degradation, known as RF desensitization. Due to the complexity of the PIM characterization, there is not yet a way to evaluate PIM performance using a simple setup for environments like factories. In this study, a current-voltage (I-V) behavior-based PIM evaluation method is proposed and validated with various metallic contacts and contact forces. The test results demonstrated the feasibility of the PIM performance evaluation based on the measured static I-V …

Zoom Fatigue And Virtual Interviewing: The Effects Of Interpersonal Distance, Lillian Rose Schell

Masters Theses

"This research examines breaches of interpersonal distance, one of the proposed causes of Zoom fatigue, within the context of a job interview. It is proposed that when an interviewer perceives a job applicant to be close to them, Zoom fatigue increases and ratings of the applicant decrease. Participants completed a Zoom Exhaustion and Fatigue scale before and after watching an asynchronous video interview in which the size of the job applicant’s face varied between conditions. It was found that breaches of interpersonal distance did not influence self-reported Zoom fatigue. However, breaches of interpersonal distance did influence ratings of the job …

Board Games: A Perfect Match For Reading Comprehension, Christopher Allen Frazier

Masters Theses

Analog board games greatly benefit students’ development and overall well-being. Board games offer opportunities for early learning, help boost language skills, sharpen students’ ability to focus, teach the value of teamwork, and soothe anxiety. Integrating board games with literacy skills allows students to assimilate information and develop into lifelong learners. Without solid literacy skills, the future is bleak for most students. To compound the problem, a trend today is to replace traditional board games as an educational tool with digital alternatives. This trend has seen a downward correlation with students having significant reading deficiencies in their reading comprehension in grades …

“Americanized” Worship In Brazilian Churches, Leon C. Neto

Masters Theses

Motivated by the marketability of high-profile artists and bands, Christian churches worldwide may see the inclusion of profit-driven worship songs as a recruiting tool for their communities. This process of globalization or "Americanization" around the world, propagated by mass media, is yet to be thoroughly investigated. This trend is likely decreasing the use of indigenous styles in Christian worship. The primary purpose of this current study is to produce scientific data suggesting that “Americanized” worship is a trend in Brazil and is affecting the production of indigenous worship repertoire. An online questionnaire was developed and applied to Brazilian worship leaders. …

Bibliotherapy In The Helping Professions: A Heuristic Model For Intervention Design, Natalie Marie Haney

Masters Theses

I propose a new approach to examining bibliotherapy’s usefulness in the community-based care of individuals with serious mental illness (SMI), focused on producing a heuristic that benefits helping professionals who offer non-clinical and non-psychiatric services. Meant for writers designing bibliotherapy interventions in the helping professions, I conceptualize bibliotherapy in a model against the backdrop of community-based care’s history. A model has the potential to allow each writer to conduct situation-specific inquiry, invent bibliotherapy intervention designs suited to the unique needs of the profession’s help-seekers, and reflect on knowledge generated for intervention reiteration. Referring to Dewey, Rosenblatt and Barnlund to create …

On Natural Evil: Augustine, Plantinga, And Hick, Andrew James Delaney

Masters Theses

This paper examines the philosophical problem of natural evil. Natural evil in the world creates a stumbling block between people and their faith in God. What can be said of the coexistence of God and evil in the world? The purpose of this paper is to address the criticisms of Christianity in light of natural evil and to share several theistic responses to the problem of natural evil. Specific considerations are made to the greater context of the story of humanity. Alvin Plantinga's free-will defense is evaluated first as a foundation for discussion. Contributions from Augustine, John Hick, William Rowe, …

Agatha Christie: Poisons And Prose, A Critical And Creative Consideration, Laurie Kay Wolf

Masters Theses

This Master of Fine Arts in Creative Writing thesis submission focuses on the literary approach and research processes of Agatha Christie. It includes an impetus and vision for the thesis project, a scientific inquiry into a sampling of the poisons Ms. Christie incorporated as murder weapons, and an analysis of texts from a variety of her published works. The creative manuscript portion incorporates the detective genre, the poison research, and this student’s interpretation of Ms. Christie’s writing style and distinction.

Researching Technological Advancements Through Alternative Methods Of Music Education To Engage Students In The Digital Age, Olivia Thornton Thompson

Masters Theses

While the music industry has significantly incorporated technology into music composition and production, music education is slow to teach how to use these technical methods for students living in the digital age. Current music education methods have established successful results in past music compositions; however, those methods are becoming impractical. Although music education taught in schools has been primarily successful through traditional methods, students learning in the digital age have yet to learn how to strengthen their musical abilities through technology. This secondary analysis aims to look at the different studies on incorporating technology in a music education setting to …

The Importance Of Art In Cross Discipline Education, Shaye E. Beeman

Masters Theses

For years, art has been pushed under the rug. Especially in education, art is seen as less advantageous than other courses such as math, English, and science. This thesis explores the advantages of utilizing art in cross-discipline classrooms to help students learn and develop skills that will improve their physical, mental, and spiritual health. This thesis will bring into account other sources of information and data including research, case studies, and visual analyses to show: How will art improve the physical health of students? How does art increase the mental health of students? How does art improve the spiritual health …

World-Building Warnings: Depth In Creative Art To Consider Societal Paths, Kane Samuel Wright

Masters Theses

Addressing the issue of artists often failing to visually communicate through world-building concepts, this paper seeks to inform a design piece demonstrating the potential effectiveness of a message communicated through visual world-building in a manner that minimises audience disengagement and maximises articulate artistic communication. Questions arise as to what dangers a future society may face that could be worth using as a framework to address this communication problem, whether techniques surrounding visual world-building can be successful in this task, and where artists go astray in their own attempts. Research conducted suggests that psychology, culture, and semiotics play an important role …

The Criteria Of Liturgical Worship And Analysis Of Wesley‘S Theology And How His Approach Challenges Contemporary Christians, Especially In Terms Of Worship, Eunice H. Ahn

Masters Theses

Although liturgical traditions were introduced during the Modernism Era, they continue to play an influential role in churches today. The worship and teaching practices applied in Roman Catholic Churches reflect how important traditional liturgy is in the Post-Modernism Era. While many catholic congregations are aware of the significance of liturgy, many Christian and Protestant Churches are not. There is missing knowledge regarding liturgical traditions in these churches. This study will propose liturgical worship in contemporary Christian and Protestant congregations as an alternative proposal from the perspective of John Wesley. This proposal will discuss the criteria of liturgical worship and analyze …

“The Ugly Truth”: Examining War Trauma And Therapeutic Storytelling Through The Works Of Tim O’Brien, Meredith Ivy Fedewa

Masters Theses

Within this work, a close study on the relationship between trauma and storytelling is examined through three of Tim O’Brien’s works: The Things They Carried, Going After Cacciato, and In the Lake of the Woods. Through the application of psychoanalysis, specifically the work of Jacques Lacan, and modern trauma theory, the relationship between individual identity and the traumatizing encounter of the Real is examined through O’Brien’s concepts of Story Truth versus Happening Truth, as well as how those concepts work together to navigate one’s trauma story. Through weaving the aforementioned theory with each text, O’Brien is seen …

Beyond All Worlds: George Macdonald, The Pre-Tolkienians, And The Forgotten Possibilities Of Fantasy, Ethan Patrick Stevens

Masters Theses

The history of modern fantasy has been powerfully shaped by the worldbuilding paradigm so successfully executed in J.R.R. Tolkien's 1954-55 trilogy The Lord of the Rings. However, there were nearly a hundred and fifty years of creative work between the birth of fantasy as a genre and Tolkien’s publication of The Lord of the Rings. By examining the pre-Tolkienian fantasists, we find that Tolkien's way of exhaustive consistency was not, and is not, the only way to write fantasy. Phantastes (1858), the first novel by the influential Victorian fantasist George MacDonald, defies contemporary worldbuilding standards almost constantly in …

Characteristics That Make An Excellent Worship Leader According To The Perspectives Of Baptist Congregants In North Texas, Carlos Jerome Benson

Masters Theses

Despite many Baptists Churches in North Texas, most church congregants vary significantly in how they characterize an excellent worship leader. These congregants often rely on trial and error to establish characteristic traits that are acceptable for the whole of a particular church. There is a gap in the research study of characteristics that make an excellent worship leader according to the perspectives of Baptist congregants in North Texas. This study will find which attributes of worship leadership are most desirable according to the views of North Texas Baptist congregants. These literary examples do not specifically name what characteristics North Texas …

"The Missus Has Paid For Your Life.": Preconstituted Third-World Women In Chris Cleave's Little Bee, Jeanette P. Barry, Jeanette Parry Barry

Masters Theses

In “Under Western Eyes,” Chandra Mohanty explains how some Western feminist scholars unconsciously other third-world women by imposing on them their Eurocentric universality. Using Mohanty as a primary lens, this thesis argues that in Chris Cleave’s Little Bee (2008), the protagonists, Sarah and Little Bee, are respectively represented as a Western referent and a third-world preconstituted woman, rendering any true collaboration between them impossible. Little Bee is meant to enlighten its readers of the plight of refugees in the United Kingdom, and in some ways it does just that. Little Bee also, however, situates the English protagonist Sarah as a …

Bearing Witness To Human Value: Race Relations Under The Apartheid Regime In Select Works Of Athol Fugard, Cameron Alex Yngsdal

Masters Theses

South African white playwright Athol Fugard utilized his theatrical expertise to articulate a socially conscious voice of protest against the oppressive systems implemented by the South African Apartheid government. Because of his writing taking place in the particularized Apartheid-specific setting, where he, as a member of the white minority, he was afforded the freedoms and opportunities which were not offered to members of non-white races. Thus, although Fugard’s race offered him opportunities to protest Apartheid, it brought the possibility of incorrectly portraying non-white South Africans. This incorrect portrayal, known as the “white savior complex,” wherein a white figure rescues the …

The Aesthetics, Sanctity, And Utility Of Jihad In The Earliest Biography Of Muhammad, Alexander Connally Mcmullen

Masters Theses

This thesis is an examination of the way jihad is portrayed in the earliest surviving biography of Muhammad. Sirat Rasul Allah is the oldest most complete biography of Muhammad to which we still have access to today, and in this biography wars, raids, and other violent acts are treated as something that is morally good, beautiful, and rewarded. To engage in violence, war, and raids, on behalf of Allah, is seen as a mark of the pious, courageous, and noble-born. Jiha is also seen as Allah’s punishment of the wicked and those who enact jihad are depicted as being directly …

Jesus As Bridegroom Warrior King: The Use Of Psalm 45 In Revelation 19, Robert Brandon Strickland

Masters Theses

While the book of Revelation includes no direct quotes from the OT, it is no secret that allusions to the OT permeate the text of John's apocalyptic vision. In alluding to the OT, John develops thematic links and imagery, resulting in theological messaging that informs his readers of the reality of Christ's rule and reign. This thesis investigates John's theological messaging in Revelation 19. Primarily this thesis will examine the themes and imagery of Revelation 19 in light of Psalm 45. It is my proposal that John borrows both imagery and language from Psalm 45 to depict Jesus as the …

The Deep End: A Journey Of Faith, Janet M. Henderson

Masters Theses

This paper is an expansion of papers written in my MFA program’s creative non-fiction writing class and workshop. In English 600: Editing, Layout, and Publishing, the class wrote a paper to document our faith journey and our approach to understanding ourselves and our worldview based on our religious indoctrination. This paper was 10-15 pages long and had a title page, a table of contents, an acknowledgment page, and a dedication page. After writing this paper, I began to consider the possibility of writing a longer work that would dig deeper into the real essence of my faith walk. It would …

Stravinsky's Symphony Of Psalms Compared With Burton's Psalms Symphony, Roberto L. Burton

Masters Theses

"Stravinsky's own account of the composition of this great work follows and needs no addenda. But since composers don't always point out their greatest masterstrokes, here are a few additional comments. Listen closely to the first chord it recurs several times during the opening minutes of the first movement for although it is a simple e minor triad, in Stravinsky's hands even a conventional chord becomes distinctive. In assigning the triad's notes to the instruments of the orchestra, Stravinsky hands out twice as many G’s (minor triads) as the root of E or the fifth of B, contrary to what …

Identification And Treatment Of Kierkegaardian Despair: An Informal Indirect Apologetic Strategy, Licio Soares

Masters Theses

The central question this paper aimed at addressing was: How to present the gospel to people that are resistant to its presentation? The Danish philosopher and theologian Soren Kierkegaard suggested that the best strategy in this scenario was indirect communication. In Kierkegaard’s pseudonymous writings many theological themes were indirectly presented as philosophical ones. The following Kierkegaardian themes were selected and arranged into a two-phase apologetic strategy that can be used in informal conversational settings: Anxiety, Despair, The Crowd, Single Individual, Revelation, and Faith. Indirect communication takes place in the first phase which is comprised of the first four themes. The …