Digital Commons Network^™

The Rise Of Mercury: The Economic And Health Impacts Of Artisanal Gold Mining In Colombia, Jilmar D. Robledo Caicedo

Theses and Dissertations

Gold prices triggered mining booms in Colombia, leading to wealth and mercury pollution. These effects on human health remain unknown. This research investigates the effect of gold mining finding a significant effect on fetal deaths reduction, suggesting gender and gestational age are fundamental to understanding the interplay of gold mining.

Investigation Into The Utility Of The Submaxillary Gland Androgen-Regulated Protein 3b (Smr3b) As A Normalizing Factor In Oral Fluid, Alejandro Ocampo

Student Theses

Oral fluid is a biological sample of increasing interest in clinical and forensic toxicology. This matrix is easy to obtain, it shows a low biohazard risk, and it reflects recent drug exposure. However, the interpretation of its quantitative values is limited, due to the high inter- and intraindividual variability. The investigation of normalization factors in this biological matrix may improve the interpretation value of oral fluid. This study investigated the potential of two signature peptides from the submaxillary gland androgen-regulated protein 3B (SMR3B) as normalization factors in oral fluid. SMR3B was digested in trypsin and the signature peptides SMR3B-1 and …

Method Development And Validation Of Controlled Substances On A Gas Chromatography - Fourier Transform Infrared Spectrophotometer, Regina E. Filus

Student Theses

The goal of this project was to perform a validation and a method development for an Agilent 7890 Gas Chromatograph connected to a Thermo iS50 Fourier Transform Infrared Spectrophotometer in order to put the instrument into functional and operational use. Both instruments are connected via an interface allowing for simultaneous analysis of a sample. A custom-made in-house library was created in order to search and compare to future unknown case samples. Reference materials were run and reviewed in order to determine which method and concentrations would provide the best infrared scans, and the sample repeatability runs were used to develop …

The Antagonistic Anatomy Of Anti-Shippers: A Thematic Analysis, Adrian A. Stone

Student Theses

Within the transformative fandom community is an ideologically-affiliated group known as anti-shippers, whose rhetoric contends that fictional interests are an indication of those held in reality. Anti-shippers focus solely on fictional material perceived to be sexual in nature and make frequent references to pedophilia. This rhetoric is used to justify harassment against individuals who do not share in their beliefs. As this population primarily operates on social media, this study was designed to conduct an exploratory investigation into themes gleaned from posts authored by anti-shippers on Twitter. Utilizing latent content analysis, a total of 187 posts from 222 unique users …

An Application Of The Coercive Control Framework To Cults, Sarah E. Feliciano

Student Theses

The present study utilized the coercive control framework to systematically assess coercion in cults. Former cult members (N=52) of various groups (e.g., psychological & self-help related) were interviewed via telephone for 1.5 to 3 hours. The sample was 67.31% female, 67.31% Caucasian, and 63.46% American; age ranged from 24-68 years old. An existing codebook was used by multiple coders with high intercoder reliability (89.66%). Coercive control tactics were present in all 52 narratives. Manipulation, intimidation, and microregulation were the tactics most frequently utilized. Sexual coercion/abuse, deprivation, and degradation were used least. Data also provided coercive subtactics specific to cults but …

Balanced Blended Space: Foundational Human–Ai Dialogues In A Symmetry-Based Mediation Framework, David Smith

Publications and Research

This working paper documents the early development of the Balanced Blended Space (BBS) framework through a series of iterative interactions between a cognitive agent (human researcher) and a computational agent (AI system) conducted in 2023. The work is motivated by the need for a universal theoretical model capable of describing the integration of physical, virtual, and conceptual spaces, particularly in response to increasing fragmentation across contemporary communication systems.

BBS is proposed as a symmetry-based mediation framework in which relationships between domains—such as physical and virtual space, cognition and computation, and multiple sensory modalities—are treated as structurally equivalent and mappable. Central …

Incels, Violence, And Masculinity: How Masculinity And Membership To Online Communities Shape Perceptions Of Violence, Meghan Scarlott

Student Theses

As online involuntary celibate (incel) forms have grown, they have become dominated by violent and misogynistic rhetoric. There have also been instances of offline violence being motivated by incel ideology and anti-feminist beliefs. Past research has established a link between inceldom and violent rhetoric through analysis of incel forum posts and activity. However, comparisons between non-incels and incels regarding masculinity and violence have rarely been conducted. We used a survey design to compare incels and non-incels on three factors: support for violence, inceldom characteristics, and internalized masculinity. Consistent with prior research, incels held more negative views of women and feminism …

The Potential Of The Implementation Of Offline Robotic Programming Into Automation-Related Pedagogy, Max Rios Carballo, Xavier Brown

Publications and Research

In this study, the offline programming tool RoboDK is used to program industrial robots for the automation sector. The study explores the feasibility of using this non-disruptive robot programming software for classroom use; assesses how well RoboDK can be used to program various robots used in the industry; creates and tests various applications; and pinpoints technical obstacles that prevent a smooth link between offline programming and actual robots. Initial results indicate that RoboDK is an effective tool for deploying its offline programming code to a Universal Robot, UR3e. There are many potential for advanced applications. The goal of the project …

Decolonization Of Knowledge Production In African Societies: Contextual Analysis Of Language Of Instruction, Oluremi Alapo

Open Educational Resources

A discussion on knowledge independence or knowledge-production decolonization with the assumption that an epistemological base for knowledge creation exists in most African societies by drawing from indigenous praxis which includes language and history.

The background to this study highlighted the usage of colonial languages by post-colonial African Societies as the language of knowledge transfer in schools and educational institutions, to the neglect of the mother tongue and local language. This prevents an intellectual dislocation that negatively affects the identity, creativity, and works of learners.

The two major theories at the base of this paper are postcolonial theory and Lev Vygotsky’s …

The Double Entry Journal, Doreen C. Bowens

Open Educational Resources

The Double Entry Journal is a note-taking technique for English Composition courses that encourages students to become active readers.

Principles Of Financial Management Chapter 1 - 4, Dorina Tila

Open Educational Resources

This work includes a teaching material that could be the embryonic stage of a textbook for a Principles of Financial Management course.

Principles of Financial Management is a course that introduces you to key financial concepts and the application of financial analysis in making sound business decisions. Topics covered are time value of money, risk and rates of return, asset valuation, capital budgeting, and capital structure, and more. At the end of the course, you will gain an understanding of financial assets, financial markets, financial intermediaries, and the banking system. You will also be able to understand financial statements (i.e., …

Lbsci 717: Digital Humanities, S E. Hackney

Open Educational Resources

This is a syllabus for a graduate-level introductory course on the Digital Humanities, primarily aimed at LIS students.

Experienced And Anticipated Stigma Among People With Mental Illness When Interacting With Healthcare Workers, Shaindel Feuer

Student Theses

Research has found that most people have negative attitudes towards those with mental illnesses,

and the resulting stigma and discrimination can be dangerous. Unfortunately, mental health stigma and discrimination are also seen in healthcare providers, with potentially fatal consequences, given that people with mental illnesses have shorter lifespans and are more likely to become ill than members of the general population. This study explored anticipatory and experienced mental health stigma from the patient’s perspective in a sample of 275 people with self-reported mental illness recruited from the online panel Prolific. Between 30.3% (Everyday Discrimination Scale) and 44.1% (Stigma Scale) of …

Improving Microbiome Research Through Enhanced Reporting And Modeling The Effects Of Antibiotic Usage, Chloe A. Mirzayi

Dissertations and Theses

I consider two key areas in the growing field of human microbiome research: improving the quality of study reporting and the impact of antibiotics on participants in human gut microbiome research studies. In the first chapter, a team of evaluators used the Strengthening the Organization and Reporting of Microbiome Studies (STORMS) checklist to assess recently published microbiome literature. I found moderate agreement and reliability between evaluators, identified several items in STORMS that could be improved, and confirmed that the STORMS checklist can serve as a tool for assessing the reporting quality of published microbiome study. The next chapter considers pre-exposure …

Exploring Friendships In J.R.R. Tolkien’S Novels And Adaptations: A Study In Social Media, Fandoms, And Variations, Ashley D. Anderson

Student Theses

J.R.R. Tolkien's The Hobbit and The Lord of the Rings trilogy and their adaptations all reveal the importance of friendship and fandom. Utilizing theorists Walter Benjamin and Henry Jenkins the friendship theme is seen in the various stylistic elements in the films and novels; additionally, a look into the fandom presence on social media, their knowledge, and merchandise reveals why the stories have continued to interest audiences over many generations.

A Study On The Design And Production Of A Desktop Vaccuum Cleaner, Aaryan Manoj Nair, Emanuel Pichardo, Isaiah Ortiz, Naeem Kotadia

Publications and Research

The goal of this project was to design a desk-top vacuum cleaner that is compact, portable, and effective in cleaning desktops and tabletops. Two concepts were proposed and compared using Quality Function Deployment (QFD) and various metrics, including in-use purposes and market, technical feasibility, ease of use, durability, and cost. The two concepts were a lifting design with hydraulics and a differently sized offset wheel design. After thorough analysis, it was determined that the lifting design with hydraulics was the better concept due to its adjustability and ability to reach different heights and angles on tabletops. The proposed product title …

Between Concealment And Revelation: Oblique Modes Of Female Self-Expression In Eighteenth-Century Literature And Life Writing, Sophia N. Sunseri

Dissertations, Theses, and Capstone Projects

This dissertation examines the social landscape of eighteenth-century Britain as one that was especially inimical to women and analyzes instances in literature and life writing in which female characters and historical figures negotiated the various restrictions they faced in social settings by “hiding in plain sight” and devising alternative strategies by which they might be seen and heard: by engaging in what I am referring to as a play between concealment and revelation. I explore texts where female characters who have been silenced and forced to conceal their presence in social situations craft diffuse strategies through which they express themselves …

Statistical And Biological Analyses Of Acoustic Signals In Estrildid Finches, Moises Rivera

Dissertations, Theses, and Capstone Projects

Acoustic communication is a process that involves auditory perception and signal processing. Discrimination and recognition further require cognitive processes and supporting mechanisms in order to successfully identify and appropriately respond to signal senders. Although acoustic communication is common across birds, classical research has largely disregarded the perceptual abilities of perinatal altricial taxa. Chapter 1 reviews the literature of perinatal acoustic stimulation in birds, highlighting the disproportionate focus on precocial birds (e.g., chickens, ducks, quails). The long-held belief that altricial birds were incapable of acoustic perception in ovo was only recently overturned, as researchers began to find behavioral and physiological evidence …

Beat Construal, Tempo, Metric Dissonance, And Transgressing The Groove In Heavy Metal, Drew Fleming

Dissertations, Theses, and Capstone Projects

This dissertation explores the relationship between the metric practices of heavy metal and the elements and processes of the musical quality known as “groove.” Although heavy metal is not often expressly associated with groove per se, it occupies a historical position within the stylistic milieu for which groove music has established the primary, referential conditions. In order to uncover this connection, then, I begin with an analysis of groove in relation to established groove-music styles, defining it as an embodied and encultured knowledge of a set of cognitive, social, kinetic, aesthetic, and musical behaviors extending in practice from African-American popular-music …

Propensity Score Analysis And Machine Learning: A Comparison And Application To Post-Secondary Education Data, Khudodod Khudododov

Dissertations, Theses, and Capstone Projects

Estimation methods to identify the causal relationships between dependent and independent variables are fundamental to social science research. For social workers, these methods provide crucial knowledge about different factors' complex relationships with a particular issue. Such knowledge helps social workers be better micro, mezzo, and macro change agents.

Different causal estimation methods exist, from randomized controlled studies to methods involving observational studies. In observational studies, which is the focus of this dissertation, participants self-select into intervention. This behavior makes causal estimation more challenging. Since participants self-select into intervention or treatment, there are observed and unobserved differences between participants in the …

International Student Orientations: Indian Students At American Universities Around The Turn Of The Twentieth Century, Param S. Ajmera

Dissertations, Theses, and Capstone Projects

This dissertation examines the writings and experiences of five Indian international students in the United States during late nineteenth and early twentieth centuries. By drawing attention to these students, I attend to the ways in which notions of freedom, progress, and inclusivity associated with American higher education, and liberalism more generally, are related to structures of racialized and colonial dispossession in India. I build these arguments by reading archival sources such as university administrative records, student publications, personal and official correspondence, as well as understudied aesthetic works, such as memoirs, travel narratives, essays, doctoral dissertations, and public lectures. These historical …

Transcranial Direct Current Stimulation Studies Investigating The Role Of The Dlpfc In Memory And Metamemory, Casey M. Imperio

Dissertations, Theses, and Capstone Projects

Metamemory, broadly defined as knowledge about one’s own memory, is thought to consist of two separate processes, monitoring, the ability to assess the contents of your own memory, and control, altering behavior in service of memory, that work together to aide in encoding and retrieval processes. Prior work has shown that metamemory monitoring accuracy can be improved in a semantic memory task via high-definition transcranial direct current stimulation (HD-tDCS), a form of non-invasive brain stimulation, over the left dorsolateral prefrontal cortex (DLPFC). Over three experiments, the current dissertation sought to replicate and extend this work by: 1) testing the effects …

The Queer Life Of Lorena Hickok, Samantha D. Leyerle

Dissertations, Theses, and Capstone Projects

This thesis explores the life of Lorena Hickok, a remarkable woman whose story has been glossed over throughout history. Hickok was an accomplished journalist and writer, and her life offers a fascinating glimpse into being queer in the early twentieth century. While much has been written about Hickok’s relationship with Eleanor Roosevelt, this thesis aims to go beyond their connection to examine Hickok’s entire life and experiences in greater detail. Through analyzing her work as a writer, as well as her personal correspondence and unpublished autobiography, this thesis illuminates the quiet details of defining moments in history, including the Great …

Capital Structure Decision And Separating Risk From Optionality, Yang Xu

Dissertations, Theses, and Capstone Projects

Chapter 1 This paper treats a firm’s capital structure decision as an optimal risk-taking decision based on its risk-return tradeoff prospect. The paper proposes to construct mean-variance ratio forecasts based on return-on-asset histories and shows that the forecasts can explain a large proportion of the cross-sectional company leverage variation. The leverage predicted by the mean-variance ratio forecast maximizes a firm’s relative value. Once the mean-variance ratio forecast is accounted for, contributions from other commonly identified variables become small. Furthermore, some of the additional explained variations do not constitute value-maximizing leverage target variations, but rather variations away from the target.

Chapter …

Factors Associated With The Life Satisfaction Of Gay And Bisexual Men And Their Variation By Race, Robert G. Considine

Dissertations, Theses, and Capstone Projects

Although the literature is replete with evidence showing that gay and bisexual men experience higher rates of negative outcomes than their heterosexual counterparts, the literature exploring the well-being of this population is limited. Life satisfaction is a key aspect of well-being. There has been little research on the factors influencing life satisfaction for gay and bisexual men. Additionally, how these factors may vary by race for this population remains understudied. This gap in our knowledge impedes the ability of social workers to support gay and bisexual men in increasing life satisfaction. In addition, knowledge of how these factors vary by …

Exploring The Potential Of Hearing Screening Smartphone Applications To Enhance Access To Hearing Healthcare: A Literature Review, Adam Sulaiman

Dissertations, Theses, and Capstone Projects

In 2016, the National Academies of Sciences (NAS) published a landmark consensus report with several recommendations to enhance the availability and affordability of hearing healthcare in the United States. Among the most notable of the recommendations was the creation of a new category of FDA-approved Over-the-Counter (OTC) hearing aids. Unlike the traditional hearing aid model, which requires a comprehensive hearing test by a hearing health professional prior to purchase, OTC hearing aids would be directly available for sale to any American adult with a self-perceived mild-to-moderate degree of hearing loss. This proposal has now become reality with the passage of …

Only For The Pleasure Of Telling: Filling The Void In Pasolini's Trilogia Della Vita, Courtney Munson

Dissertations, Theses, and Capstone Projects

Since Pasolini deliberately cultivated an unrecognizable and illegible public image that embraced incoherence, much of the scholarship surrounding him is plagued by contradictions and mutual exclusivity. For some, Pasolini was a utopian prophet, for others apocalyptic, but most agree that he, through his transmedial and highly self-inscribed life-work, was responding primarily to the crises of neocapitalist consumerism, especially its degenerative effects on sexual conventions and the body. Through an investigation of Pasolini’s controversial essays on film theory, the details of his biography, and the films of the Trilogia della vita, this thesis argues that it is a mistake to …

The Effects Of Music Therapy On Elderly Adults With Dementia, Jeante J. Jackson

Dissertations, Theses, and Capstone Projects

As people age, the brain is more susceptible to changes that diminish cognitive function. In recent years neuroscience has found convergent evidence between music therapy and brain architecture, as it has shown the generation of new connections in the brain or a reorganization and possible strengthening of existing connections already in the brain. However, the literature regarding music training’s effects on executive control, selective attention, and speech processing is lacking particularly when it comes to older populations.

This study investigated Verbal Working Memory, Visuospatial Attention and Task Initiation, and Auditory Selective Attention in a 91-year-old adult (B.P.) diagnosed with dementia. …

Untangling The Nature And Timescales Of Magmatic Processes Driving Eruptions At Quiescent Volcanoes: Examples From Momotombo, Nicaragua, And Cumbre Vieja, Canary Islands, Samantha Tramontano

Dissertations, Theses, and Capstone Projects

Across all scales of human relationships (i.e. person-to-person, country-to-country, etc.), qualms can take the form of long-standing wars, quick and intense bouts, or petty exchanges. While our understanding of human behavior is ever increasing, reactions and behaviors of self and others may still come as a surprise. Expressions of disagreement can occur suddenly or following years to centuries of accumulated grievances. The solid earth is also a system that behaves (like human emotion) predictably at times and unpredictably at other times. Some volcanoes, a tangible surface expression of solid earth processes, exhibit precursory signals prior to eruption (e.g. the bulging …

Social Media In The Corporate World, Linelle C. Lestrade

Student Theses and Dissertations

This study focuses on the rise of corporate brands on social media and the resulting identity issues. Four marketing and PR professionals were interviewed for this study utilizing oral history as qualitative research method. People were selected for membership based on their networks and reputations as authorities in their respective fields. All the discussions were recorded on Zoom with everyone's consent. All four participants brought varied expertise and experience in social media marketing and management to the discussion. They were picked because their backgrounds fit the study's goals best. Open-ended questions were used to elicit responses to personal experiences, issues, …