Digital Commons Network^™

Defending Behavior In Bullying: Moral Disengagement, Defender Self-Efficacy, Student-Student Relationship Quality And Student-Teacher Closeness, Ruth Jeong

Graduate Research Theses & Dissertations

Bullying is a social phenomenon that involves more participants than the bully and the victim. Since the identification of other bullying participant behaviors, endeavors have been made to explore what inclines a person to defend a victim of bullying. With the social cognitive theory in mind, the current study examined whether students’ level of moral disengagement and defender self-efficacy were associated with engagement in defending behavior with a sample of 573 six to eighth grade students. Additionally, students’ perceived relationship qualities with teachers and peers were examined as moderators in the association among moral disengagement, defender self-efficacy, and defending behavior. …

Building From The Family Stress Model: Examining The Role Of Maternal Impulsivity And Neighborhood Collective Efficacy On Adolescent Psychological Symptoms, Lauren Therese Mcneela

Graduate Research Theses & Dissertations

The Family Stress Model (FSM) offers an understanding of the complex relationship between economic hardship and child outcomes through a number of parent factors (e.g., psychological functioning) and parenting practices; however, additional variables of influence were considered within this framework, as a way to fully encapsulate the processes within the family and neighborhood contexts that influence child psychological functioning. Using the Future of Families and Child Wellbeing Study, formerly called Fragile Families and Child Wellbeing Study (FFCWS), a sample of primarily low-income, single-parent households, the present study examined the FSM in relation to adolescent externalizing and internalizing psychological outcomes. Additionally, …

Journalists’ Perception Of Artificial Intelligence: The Case Of Nigerian Newsrooms, Amaka Peace Onebunne

Graduate Research Theses & Dissertations

Technological advancements have always influenced how news is sourced, produced, and disseminated. The emergence of AI technology fundamentally repositions human journalists, requiring them to work with non-human agents. Typically, the Global North leads in adopting such technologies, resulting in unequal technological diffusion and research between the Global North and South. This research thus takes a less-traveled path within a portion of the global south to understand journalists’ views of Artificial Intelligence in Nigerian newsrooms and how geographical and cultural factors influence AI usage. Grounded in the human-machine communication framework, semi-structured interviews with 18 Nigerian journalists revealed a double-edged view of …

Gmm And Asset Pricing Model, Yuzhou Liu

Graduate Research Theses & Dissertations

The traditional two-pass regression to estimate risk premium has shortcomings. To get the correct asymptotic standard errors, we need to estimate both time-series regressions and cross-sectional regressions simultaneously. The Generalized Method of Moments (GMM) effectively addresses this issue by its nature fit of asset pricing model. In this paper, I re-examine the risk premium of Carhart’s four-factor model by integrating time-series and cross-sectional regressions within the GMM framework, which enhances the accuracy and reliability of the risk premium estimates.

Self-Compassion Intervention For Shame In Trauma-Exposed Gender And Sexual Minorities, Kyla A. Leonard

Graduate Research Theses & Dissertations

Individuals who identify as gender or sexual minorities (e.g., lesbian, gay, bisexual, pansexual, asexual, queer, transgender, nonbinary, intersex, gender nonconforming, etc.) have a high prevalence of interpersonal trauma. These individuals also experience a higher likelihood of experiencing posttraumatic stress disorder (PTSD) symptoms after exposure to potentially traumatic events. It has also been shown that those who identify as gender or sexual minorities experience high rates of shame due to minority stress and psychological factors such as internalized heterosexism. Experiences of shame are a central component in the development and maintenance of PTSD symptoms, particularly within this population. Self-compassion is an …

Examining Relations Among Educator Demands, Burnout, And Engagement: Work Recovery As A Moderator During Covid-19, Kellie Menter

Graduate Research Theses & Dissertations

Education is described as a fulfilling career field; however, educator shortages associated with burnout and job dissatisfaction constitute a major issue in public education currently. During the COVID-19 pandemic, new challenges resulted in increased job stress for many educators. Using survey responses of a sample of 159 educators from a midwestern public school district, the current study explored whether a personal resource, work recovery experiences, was associated with educator burnout and work engagement during the context of remote instruction associated with the COVID-19 pandemic. Results indicated psychological detachment significantly moderated the relation between demands and burnout. However, control over leisure …

Essays On Computational And Financial Economics, Mohammadreza Mahmoudi

Graduate Research Theses & Dissertations

This dissertation comprises three essays centered on computational and financial economics, addressing the economic implications of the COVID-19 pandemic, the interplay between monetary policy and the cryptocurrency market, and the strategies for cryptocurrency portfolio optimization.

In the first essay, the spotlight is cast on the U.S. government's response to the COVID-19 pandemic and its subsequent economic ramifications. The study meticulously assesses the implemented uniform pandemic control policies and contrasts them with potential targeted measures. These targeted strategies take into account the differential effects of the virus on various age demographics. By employing the adjusted SEQIHR model as a tool for …

Studies Towards Mechanistic Understanding Of The Suzuki-Miyaura Catalyst-Transfer Polymerization, Mitchell Tyler Howell

Graduate Research Theses & Dissertations

Semiconducting organic conjugated polymers show major promise for the manufacturing of organic electronic and optoelectronic devices. Their utility comes from inherent conductivity, elasticity, processability and low weight paving the way towards novel materials and applications. The molecular weight, polydispersity, and precise incorporation of structural elements into the conjugated backbone are among the important parameters that affect a conjugated polymer’s mechanical and electrical properties. Therefore, precise control over such parameters provides a path for electronic materials with tunable properties tailored for a specific application. Recent success in this endeavor has been achieved with Suzuki-Miyaura Catalyst-Transfer Polymerization (SCTP) which is a transition …

Producing Biocomposites From Hemp Residues, Mohammad Faghani

Graduate Research Theses & Dissertations

The significant environmental challenges posed by traditional fossil fuel-derived plastics necessitate the exploration of sustainable alternatives. The global production of plastic has dramatically increased from 2 million tons in 1950 to 368 million tons in 2019, with projections exceeding 600 million tons by 2025. By 2040, the greenhouse gas emissions from the lifecycle of these plastics are expected to consume 19% of the global carbon budget. The United States alone produces nearly twice as much plastic waste as China and more than the entire European Union combined, highlighting the urgency of finding eco-friendly solutions.

Biocomposites, combining natural fibers with either …

Tracing Past Climate Signals Through Multi-Proxy Analysis: Insights From Sedimentary Plant Wax Hydrogen Isotope Data And Long-Term Hydroclimate Records In Estonia, Mariliis Eensalu

Graduate Research Theses & Dissertations

In light of the rising global temperatures, there is an increasing need to understand the potential shifts in hydroclimate. Past climate reconstructions offer a glimpse into the possible temperature-moisture dynamics by providing quantitative constraints for hydroclimate variability under different temperature conditions, which can ultimately aid in decreasing the uncertainty in future climate projections. The research presented in this dissertation focuses on utilizing various proxies to reconstruct past hydroclimate conditions, particularly in the Baltic region, with a specific emphasis on Estonia. The second and third chapter aim to improve the understanding of sedimentary plant wax hydrogen isotope (δ2H) data by first …

Explicit And Implicit: Traumatized Cognitions And Identities, Brandon Michael Davis

Graduate Research Theses & Dissertations

Negative cognitions following exposure to traumatic events, such as viewing the self or the world negatively, are a crucial factor in the development and maintenance of posttraumatic stress disorder (PTSD). Furthermore, evidence points to traumatic exposure impacting identity and perception of the self. Effective measurement of these negative self-cognitions is important for understanding the consequences of traumatic events. Self-report measures are the most common approach to studying cognitions, but other methods such as cognitive tasks that require automatic responses may give further insight into negative posttraumatic cognitions. This study sought to investigate self-report and automatic evaluations of trauma cognitions in …

(Agri)Cultural Activism: The Role Of Pgaz K’Nyau Karen Youth In Sustaining Rotational Farming In Thailand, Mitchell Rigert

Graduate Research Theses & Dissertations

The focus of this thesis is to shed light on youth group activism in an Indigenous Pgaz k’Nyau Karen community in Thailand. These youth are seeking rights and recognition to sustain their subsistence-based practice of swidden agriculture in the context of state forest policy officially banning such practices. I draw on over two months of multi-sited ethnographic fieldwork in Thailand. I argue that the youth use a variety of strategies to render swidden agriculture visible and legible to the state and public in the interest of sustaining the practice, which they see as an essential part of their communal identity. …

Will The Real J.G. Ballard Please Stand Up?, Scott Richard Stalcup

Graduate Research Theses & Dissertations

This dissertation examines the longer works of British colonial author James Graham Ballard. Specifically, it attempts to answer the long-deflected question posed over the decades to Ballard regarding the treatment of female characters in his fiction. Though espousing liberal feminist ideals at times, Ballard’s repeated use of the lamia/damsel archetype, often in the same female character, strongly suggests he believed otherwise. Using predominantly radical-cultural feminist criticism as a critical lens, specifically the works of Ballard’s long-time nemesis Andrea Dworkin, this study focuses predominantly on the thematic tetralogies of Ballard’s fiction: the ecological disasters of the 1960s, the “techno-barbarism” of the …

Julia Limiting Directions Of Quasiregular Maps, Julie Marie Steranka

Graduate Research Theses & Dissertations

In this dissertation, we study the set of Julia limiting directions of quasiregular maps. The work combines the study of dynamics of quasiregular maps and applications of nonlinear potential theory to quasiregular maps. Our main result shows that the set of Julia limiting directions of a transcendental-type $K$-quasiregular map $f:\R^n\to \R^n$ must contain a component of a certain measure, depending on the dimension $n$, the maximal dilatation $K$, and the order of growth of $f$. In particular, we show that if the order of growth is small enough, then every direction is a Julia limiting direction. The main tool in …

Re-Feminizing The Divine: Understanding The Cultural Constructs Of Gender And Sexuality In A Church-Based Christian Community, Cameron K. Thomas

Graduate Research Theses & Dissertations

Historically, Christianity has sought to maintain rigid separation between men and women. Christianity often views women as secondary to men, particularly in relation to authority under Jesus Christ. These ideals have led to the restrictions of rights and roles of people who choose not to adhere to strictly defined or enforced gender roles. For this ethnography, I examined one church community; namely Barbwire Baptist Church in northern Illinois and how its members used scripture and doctrine beyond simply worship to reinforce norms and expectations of self and others regarding gender and sexuality. I draw on scholarship in gender studies, and …

A One-Wheeled Robot For Exploring Rolling Disk Locomotion, David H. J. Schmidt

Graduate Research Theses & Dissertations

The work proposed in this thesis is motivated by observations of one-wheel vehicles called monocycles. Whereas the unicycle has the rider sitting on a seat above the wheel, the monocycle’s rider sits inside a large circular hoop that serves as the wheel. Due to the position of the rider inside the wheel, it lowers the overall center of mass of the vehicle below the center of the wheel. For this reason, the uncontrolled longitudinal (forward/backward, or drive axis) dynamics are stable. For modest speeds above a certain threshold, the lateral (side-to-side, or lean axis) dynamics of the monocycle are also …

There Is No Substitute For A Lifetime: A Study Of Metaphor And Linguistic Autonomy In The Lives And Works Of Selected American Poets, Richard Tony Thompson

Graduate Research Theses & Dissertations

Metaphor is not only figurative language, but also a way of understanding reality and creating truth. This study describes how selected American poets, including Tom Andrews, Patti Smith, and Natasha Trethewey, engage the concept of creation through metaphor in their poetic and autobiographical writing. Theories of signification, symbolism, and metaphor as defined by philosophers of language, including George Lakoff, Charles Sanders Peirce, and Roman Jakobson, are combined with complementary theories from philosophers of poetry, including Wallace Stevens, Jorie Graham, and Federico García Lorca, and used as a lens through which to view the agency of the language user as a …

Chamber Tone Poems At The Turn Of The Twentieth Century: How The Harp Contributed To Their Development, Abigail Hughes Stoner

Graduate Research Theses & Dissertations

Unlike other instruments, the harp was not used in chamber ensembles before the twentieth century. When it did start appearing in chamber ensembles, it was usually within programmatic works, non-traditional forms, unconventional instrument combinations, and mostly in France. At the same time, the harp began emerging as a chamber ensemble instrument, and a new genre of chamber music appeared: the chamber tone poem. There is a significant lack of scholarly research and literature as to why the harp appeared alongside chamber tone poems in these unusual chamber ensembles specifically at this time and especially in France. This paper will seek …

Cold Testing Of A Prototype Superconducting Radiofrequency Electron Gun And Ancillary Systems For The Lcls-Ii-He Project, Kaela Michele Villafania

Graduate Research Theses & Dissertations

Argonne National Laboratory is collaborating with Michigan State University (MSU), Helmholtz-Zentrum Dresden-Rossendorf (HZDR), and Stanford Linear Accelerator Center (SLAC) on the design, fabrication, and testing of a prototype superconducting radiofrequency (SRF) gun for the planned LCLS-II-HE upgrade at SLAC. This electron source will enable the generation of higher-brightness beams at a high repetition rate opening the path to expand LCLS-II-HE FEL performances. This thesis focuses on the cold testing of the prototype gun cavity and ancillary structures including the fundamental input-power coupler and tuning system. Numerical simulations are also presented to understand fields inside of the cavity as well as …

After The Collapse: Herman Melville’S And Friedrich Nietzsche's Existentialism, Ryan L. Smith

Graduate Research Theses & Dissertations

This dissertation compares the works of Herman Melville and Friedrich Nietzsche. Melville and Nietzsche articulate similar arguments about the collapse of Christian metaphysics as a traditional philosophical system. Both authors recognize the moral, intellectual, and spiritual void this collapse revealed, and they craft similar texts that illustrate humanity’s emotional turmoil facing the abyss. In addition to these scenes of upheaval, Melville and Nietzsche promote the importance of the individual’s will to overcome the possible fall into psychological nihilism resulting from recognizing the emptiness of traditional religion’s teachings. Melville’s and Nietzsche’s striving against complete despair in the wake of this collapse …

Motivation, Engagement, And The Student-Teacher Relationship As Predictors Of Academic Outcomes, Courtney Weaver

Graduate Research Theses & Dissertations

Motivation and engagement have long been studied in educational literature as factors that contribute to student academic achievement. The student-teacher relationship has also gained attention as a factor that exerts influence on students’ performance in the classroom. Models that consider context, or the ways in which these student- and teacher-level factors work together, are lacking in the literature. The current study employed an ecological systems framework with concepts from two related theories, attachment and self-determination, to investigate the roles of motivation, engagement, closeness and conflict in the student-teacher relationship as influences on student academic outcomes. Data for the current study …

Bidirectional In-Situ Analysis And Visualization Of Fluid Structure Interactions With Applications In Blood Flow, Nazariy Tishchenko

Graduate Research Theses & Dissertations

Interactive blood flow simulation has applications in the understanding of complex fluids,training medical professionals, diagnostics, and surgical procedure planning. Bidirectional in situ visualization and analysis are much needed to streamline the analysis of large-scale patient-specific blood flow simulations. The in situ component ensures the live visualization of the simulation results while the simulation is running, and the bidirectional component allows for real-time control and configuration of the simulation parameters (i.e., setting and retrieving the simulation parameters and data based on need). In this project, a highly accurate multiphysics simulation was instrumented to work with an existing bidirectional in situ framework. …

Housing Markets, Residential Preferences And Segregation: Unraveling Spatial Dynamics In Quito, Ecuador, Felipe Miguel Valdez Gomez De La Torre

Graduate Research Theses & Dissertations

Housing issues in cities paradoxically manifest as growing inaccessibility and an oversupply with high prices. Urban public policies have been insufficient to reverse this pattern because they fail to address its root cause: the socio-spatial process resulting in uneven development. This dissertation starts with the premise that housing problems are not isolated but intricately linked to social dynamics and spatial configurations.Latin American cities represent a particular case study due to their high degree of urbanization combined with high inequality, leading to unique and highly segregated urban forms such as self-built settlements and gated communities in close proximity. We take the …

Temporal Microplastic Concentration Fluctuations Within An Agricultural Creek And Groundwater In Relation To Farming Practices, Jennifer Abel

Graduate Research Theses & Dissertations

Microplastics (MPs) in agriculture have been well-documented. Agrochemicals, organic fertilizers, and farming equipment all contribute plastic to agricultural soils, groundwater, and surface water and are utilized in different capacities throughout the year. It is unknown how the specific utilization of these products affects the concentration of MPs being input into the environment. Previous research has been primarily related to detection and transport of MPs in soils, groundwater, and surface water. I am unaware of any studies that have taken into consideration farming practices and seasons, and how they may affect any fluctuations in MP concentrations. Water samples (20 L) were …

Tyfys, Dustin Dunbar

Mighty Pen Project Anthology & Archive

Our narrator humorously recounts an uncomfortable conversation in a grocery store, and reflects on the complicated phrase "Thank you for your service."

Articles, stories, and other compositions in this archive were written by participants in the Mighty Pen Project. The program, developed by author David L. Robbins, and in partnership with Virginia Commonwealth University and the Virginia War Memorial in Richmond, Virginia, offers veterans and their family members a customized twelve-week writing class, free of charge. The program encourages, supports, and assists participants in sharing their stories and experiences of military experience so both writer and audience may benefit.

Cold War Story, Randall Lanning

Mighty Pen Project Anthology & Archive

During the height of the Cold War, on a lonely night shift in a missile silo in rural Missouri, a young Air Force missileer finds himself suddenly on high alert, as the U.S. prepares to respond to an unknown nuclear threat. This was not a drill.

Articles, stories, and other compositions in this archive were written by participants in the Mighty Pen Project. The program, developed by author David L. Robbins, and in partnership with Virginia Commonwealth University and the Virginia War Memorial in Richmond, Virginia, offers veterans and their family members a customized twelve-week writing class, free of charge. …

Confessions Of A Bomb Tech, Harry Mayer

Mighty Pen Project Anthology & Archive

An EOD technician, or bomb tech, recounts a render safe procedure conducted on a rainy December day. A study on luck, defusing bombs, and the many EOD protocols written in blood.

Articles, stories, and other compositions in this archive were written by participants in the Mighty Pen Project. The program, developed by author David L. Robbins, and in partnership with Virginia Commonwealth University and the Virginia War Memorial in Richmond, Virginia, offers veterans and their family members a customized twelve-week writing class, free of charge. The program encourages, supports, and assists participants in sharing their stories and experiences of military …

A Day In The Life Of A Beanhead, Patrick Potter

Mighty Pen Project Anthology & Archive

It's a beautiful spring morning at West Point Academy, and Cadet Potter is barefoot, late, and an easy target.

For freshman, or Beanheads, just trying to get by at West Point, life is tough. This short humorous memoir recounts a harrowing school day of one such cadet.

Articles, stories, and other compositions in this archive were written by participants in the Mighty Pen Project. The program, developed by author David L. Robbins, and in partnership with Virginia Commonwealth University and the Virginia War Memorial in Richmond, Virginia, offers veterans and their family members a customized twelve-week writing class, free of …

The First Day And The Last, Dave Schlitz

Mighty Pen Project Anthology & Archive

A 19 year old boy joins the Navy bound for the high Arctic. 3 years later, he steps off his ship for the last time. A melancholy study on what once was, and the things that change us.

Accompanied by a short piece titled "Home."

Articles, stories, and other compositions in this archive were written by participants in the Mighty Pen Project. The program, developed by author David L. Robbins, and in partnership with Virginia Commonwealth University and the Virginia War Memorial in Richmond, Virginia, offers veterans and their family members a customized twelve-week writing class, free of charge. The …

The Emerald Knights, Harry Mayer

Mighty Pen Project Anthology & Archive

A Marine is transferred to the Navy, and is forced to adapt to a drastically different set of rules and attitudes.

Articles, stories, and other compositions in this archive were written by participants in the Mighty Pen Project. The program, developed by author David L. Robbins, and in partnership with Virginia Commonwealth University and the Virginia War Memorial in Richmond, Virginia, offers veterans and their family members a customized twelve-week writing class, free of charge. The program encourages, supports, and assists participants in sharing their stories and experiences of military experience so both writer and audience may benefit.