Digital Commons Network^™

Corporate-Community Mining Conflicts In Guatemala: Unsettling Hegemonic Power Relations In Environmental Struggles, Anna Guðbjört Sveinsdóttir

Electronic Theses and Dissertations

This dissertation analyzes corporate-community conflicts around extractive industries in Guatemala with the purpose of better understanding how environmental struggles emerge and take shape. The study uses environmental governance as a framework to analyze the processes, institutions, actors and discourses that shape the conditions of possibility of political action and mobilization in environmental struggles. The dissertation argues that to understand the conditions of possibility of political action and mobilization in environmental struggles we must study the interplay between political actions 'from above' and 'from below', which are seen as dialectically interrelated, with dynamic and contested interactions between actors within and between …

Critiquing Atomistic Individualism In Law: Rosenzweig's Beloved Soul As Open And Relational Subject, Lilith Zoe Cole

Electronic Theses and Dissertations

Positioned as a critique of rights-based justice, this project critically rethinks the American system of law by rooting its failures in its philosophical anthropology of atomistic individualism grounded in Locke, and recommends replacing that anthropology with an anthropology inspired by Franz Rosenzweig's The Star of Redemption. In particular, the project explores how Rosenzweig's "beloved soul" invites us to understand human individuality as open and relational, which might help pivot the law away from its current myopic focus on rights-based justice and the often unjust zero-sum modality that rights-based justice produces. Rooting law in open and relational individuality rather than Lockean …

Exploring The Role Of Relapse For Women In Recovery From An Eating Disorder, Britney Tibbits

Electronic Theses and Dissertations

Eating disorders are serious mental health problems with high relapse rates (Arcelus, Mitchell, Wales, & Nielsen, 2011; Herzog et al., 1999). Research has demonstrated that eating disorder populations show interpersonal deficits at baseline compared to comparison groups (Arcelus, Haslam, Farrow, & Meyer, 2013; Grissett & Norvell, 1992; Ivanova et al. 2015; Tiller at al., 1997), specifically in assertiveness (Behar, Manzo, & Casanova, 2006; Constantino & Smith-Hansen, 2008; Duchesne et al., 2012; Hartman et al., 2010). The goal of this research was to explore the variables related to relapse and make the social and interpersonal growth that occurs in recovery visible …

The Effect Of Conspecific Cues And Neighborhood Effects On Bee Foraging Behavior, Eva Sofia Horna Lowell

Electronic Theses and Dissertations

Foraging bees use social information (e.g. presence of absence of other bees) to assess the quality of flowers when choosing a flower to visit. My research tests how bees choose to visit a particular flower once they have been recruited to a flower patch. I tested if neighborhood effects, or the relative number of bees on neighboring flowers compared to a focal flower, affected to which flower a foraging honey bee visited. I also conducted a meta-analysis to test whether bees in the super-family Apoidae are more likely to visit a flower occupied by a con- or heterospecific bee or …

Transgender Experience Depicted Through Memes: An Ethnographic Investigation Of Minority Stress And Resilience, Ashley Lorraine Blewitt-Golsch

Electronic Theses and Dissertations

This work identifies transgender oriented image memes as a dataset that reflects transgender lived experience, minority stress, and resilience. In this analysis of transgender memes, four themes were identified: Community, Bodies, Transgender Experience, and The Broken System of Gender. Memes about bodies dealt not only with medical transition, but discussed the distinction between euphoria and dysphoria, as well as cisgender expectations of transgender bodies and bodily narratives. Memes about community included depictions and acts of validation, discussions of reclamations of power, and the queering of media to form senses of community representation. Transgender experience memes discussed the ways being transgender …

Coupling Of Light's Orbital Angular Momentum To A Quantum Dot Ensemble, Alaa A. Bahamran

Electronic Theses and Dissertations

We theoretically and experimentally investigate the transfer of orbital angular momentum from light to an ensemble of semiconductor-based nanostructures composed of lead sulfide quantum dots. Using an ensemble of quantum dots offers a higher cross-section and more absorption of twisted light fields compared to experimentally challenging single-nanostructure measurements. However, each quantum dot (except for on-center) sees a displaced light beam parallel to its own axis of symmetry. The transition matrix elements for the light-matter interaction are calculated by expressing the displaced light beam in terms of the appropriate light field centered on the nanoparticles. The resulting transition rate induced by …

Julia De Burgos, Embodied Excess, And (Un)Silenced Memory: A Decolonial Feminist Analysis Of Performances Of Resistance, Sara Johanna Baugh

Electronic Theses and Dissertations

My dissertation makes an argument for a decolonial move in rhetorical memory studies to more ethically account for the ways in which colonized women in the Global South, like Puerto Rican poet and revolutionary Julia de Burgos, have resisted the trauma colonization has systemically wrought against gendered, raced, and classed bodies. Building from a decolonization methodology, and theoretically situating my argument in Chicana, Latina, and decolonial feminisms, I argue Burgos's poetry both bears faithful witness to the violence of US imperial rule and articulates the dangers of a Puerto Rican nationalist movement built on a Spanish colonial foundation. Approaching Burgos …

The Intersection Of Mindfulness, Teacher Efficacy And School Climate: A Pilot Study, Sarah K. Killion

Electronic Theses and Dissertations

Burnout, teaching self-efficacy, and school climate are hot topics in education. Daily stressors create feelings known as burnout, including emotional exhaustion, detachment from teammates, and a decline in feelings of professional competence. The alarmingly high rate of educator turnover illustrates a critical juncture in education. Therefore, interventions are required to improve a teachers' ability to manage student behaviors, provide quality instruction, maintain student engagement, and sustain an atmosphere of collegiality with teammates and administrators.

Mindfulness is a concept that is best understood as moment-to-moment, non-judgmental awareness cultivated through the practice of meditation and calming activities. These interventions are being utilized …

Telling Our Stories: Exploring The Path Toward Successful Mathematics Degree Attainment At An Under-Resourced Predominantly Black Institution, Lauren E. Mckittrick

Electronic Theses and Dissertations

The under-representation of Blacks in mathematics related professions stems from an American educational system of inequity. Many Black students, including a substantial proportion of those who enroll at Predominantly Black Institutions, attend elementary and secondary schools in under-resourced districts with limited access to quality teachers and rigorous, culturally-relevant instruction that would adequately prepare them for college attainment in mathematics.

The primary research question guiding this study was: What are the challenges and opportunities associated with building and sustaining a successful mathematics degree program at an under-resourced Predominantly Black Institution? Concurrently, this interpretive case study examined and documented the experiences of …

Characterization Of Vps41 And Its Role In The Regulated Secretory Pathway, Christian Henry Burns

Electronic Theses and Dissertations

Insulin secretory granules (SGs) mediate the regulated secretion of insulin, which is essential for glucose homeostasis. The basic machinery responsible for this regulated exocytosis consists of specific membrane proteins present both at the plasma membrane and on insulin SGs. The protein composition of insulin SGs thus dictates their release properties, yet the mechanisms controlling insulin SG formation, which determines this molecular composition, remain poorly understood. VPS41, a component of the endolysosomal tethering HOPS complex, was recently identified as a cytosolic factor involved in the formation of neuroendocrine/neuronal granules. We now find that a stable pool of VPS41 exists outside of …

The Role Of Psychological Flexibility In Graduate Student Stress And Well-Being, Aaron Hudyma

Electronic Theses and Dissertations

Despite the prevalence of mental health concerns among graduate students (Evans, Bira, Gastelum, Weiss, & Vanderford, 2018), research on graduate student mental health lags behind that of undergraduates (Hyun, Quinn, Madon, & Lustig, 2006). This study utilized Lent's (2004) social-cognitive model of well-being to examine factors thought to contribute to graduate student well-being in a sample (N = 301) of graduate students in the United States. In particular, the role of the construct of psychological flexibility was examined for its influence on other factors in the model. Results indicated that the model demonstrated a good fit to the data …

Synergistic Environmental Aging Of Glass Reinforced Polymer Composites, Tianyi Lu

Electronic Theses and Dissertations

Synergistic effects involved in the environmental degradation of Glass Reinforced Polymer (GRP) composites were examined and a novel synergistic aging model was proposed in this study. Six GRPs based on glass fibers with four different polymer resins and six pure polymer thermoplastic resins were exposed either individually or in combination to ultraviolet (UV) radiation, water condensation and elevated temperature for approximately 1000 h. The composites and polymers were monitored for weight changes as a function of time and their surfaces were examined after the tests using optical and scanning electron microscopes (SEM). Photodegradation of the polymer matrices was analyzed by …

Social Belonging And Built Space: Using Contact, Contention, And Common Conditions To Create Multicultural And Multifaith Shared-Space In A Repurposed Aurora, Colorado, Church, Kassandra Irene Soppas Neiss

Electronic Theses and Dissertations

Global patterns of human displacement and migration are diversifying the user base of urban churches. This change produces new settings of cross-cultural encounter and adaptation of social space. This study examines the transition of a Lutheran church into a multifaith and multicultural community center. In Aurora, Colorado, a majority-minority city, the facility offers vital support for immigrants, refugees, and low-income community members while maintaining links with [previous] congregants. Using ethnographic methods, I explore the cultural dimensions of repurposed space for a diverse constituency. Discussed herein are the ways in which the physical space is interpreted, how contention and divergent experiences …

Proximate And Ultimate Consequences Of Stressed-Induced Maternal, Paternal, And Joint Parental Effects In A Changing World, Whitley Rayen Lehto

Electronic Theses and Dissertations

Parental experience can alter the developmental and rearing environments of offspring, resulting in parental effects on offspring traits. I addressed the consequences of stress-induced maternal, paternal, and joint parental effects from both ultimate (ecological/evolutionary) and proximate (physiological/epigenetic) perspectives. I used a full-factorial design in which threespine stickleback (Gasterosteus aculeatus) mothers, fathers, both, or neither were exposed to a model predator at developmentally appropriate times to test for predator-induced maternal, paternal, and joint parental effects on daughters’ mating behavior and egg glucocorticoids (stress hormones) and on offspring gene expression. Maternal and paternal predator exposure independently yielded daughters who preferred …

Nonlinear Controller Design For Uavs With Time-Varying Aerodynamic Uncertainties, Michail G. Michailidis

Electronic Theses and Dissertations

Unmanned Aerial Vehicles (UAVs) are here and they are here to stay. Unmanned Aviation has expanded significantly in recent years and research and development in the field of navigation and control have advanced beyond expectations. UAVs are currently being used for defense programs around the world but the range of applications is expected to grow in the near future, with civilian applications such as environmental and aerial monitoring, aerial surveillance and homeland security being some representative examples. Conventional and commercially available small-scale UAVs have limited utilization and applicability to executing specific short-duration missions because of limitations in size, payload, power …

Qualitative And Quantitative Fitness Consequences Of Advanced Maternal Age, Claudia Jean Hallagan

Electronic Theses and Dissertations

Parental age can affect offspring fitness across taxa and through various mechanisms. However, the effect(s) of advanced maternal age on offspring, particularly in insects, has not been comprehensively reviewed making it difficult to draw conclusions about the effects of advanced maternal age on offspring in insects. In my first chapter, I reviewed maternal age literature and found overall negative effects of advanced maternal age on offspring fitness. However, results vary depending on which fitness measures were used, the life stages at which offspring were measured, and the experimental design of the study. In my second chapter, I conducted an experiment …

Development Of A Hek293 Cell Line To Show Inhibition Of Tau Aggregation, Justin Ray Shady

Electronic Theses and Dissertations

Intracellular deposition of aggregated tau is the hallmark of several different tauopathies, the most widespread of these being Alzheimer's disease. Tau is a highly soluble, intrinsically disordered, microtubule associated protein. Tau's native function is to stabilize microtubule formation in the axons of neurons. Post translational modification such as hyperphosphorylation as well as several familial mutations allow tau to nucleate and form fibrils. These fibrils can recruit healthy monomers onto their ends in a fashion described as template-assisted growth. Tau has 6 isoforms that vary by the inclusion or exclusion of two N-terminal repeats and the inclusion or exclusion of the …

Applied Machine Learning For Classification Of Musculoskeletal Inference Using Neural Networks And Component Analysis, Shaswat Sharma

Electronic Theses and Dissertations

Artificial Intelligence (AI) is acquiring more recognition than ever by researchers and machine learning practitioners. AI has found significance in many applications like biomedical research for cancer diagnosis using image analysis, pharmaceutical research, and, diagnosis and prognosis of diseases based on knowledge about patients' previous conditions. Due to the increased computational power of modern computers implementing AI, there has been an increase in the feasibility of performing more complex research.

Within the field of orthopedic biomechanics, this research considers complex time-series dataset of the "sit-to-stand" motion of 48 Total Hip Arthroplasty (THA) patients that was collected by the Human Dynamics …

"Stretched Thin": Pregnancy And Motherhood In Clinical And Counseling Psychology Doctoral Programs, Kimberlee Yalango

Electronic Theses and Dissertations

Given that women now earn the majority of psychology doctoral degrees in the United States (Aud et al., 2012), there needs to be consideration of unique social and systemic difficulties that women may face during their studies. One particular issue of importance is women's choice to become pregnant and start families during their graduate education. Despite the challenges of becoming pregnant during a doctoral program and balancing the roles of mother and student, there has been limited research that examines this phenomenon. The purpose of this study was to understand the experiences of women who become pregnant during their time …

Evaluation Of A Sexual Health Training For Child Welfare Workers, Katie Massey Comsb

Electronic Theses and Dissertations

Background: Elevated rates of early pregnancy and parenting among youth in foster care (YFC) are well documented. Training child welfare workers to provide sexual health information and resources is stated throughout the extant literature as a pressing need in efforts to prevent unintended pregnancy among YFC. However, few child welfare agencies offer such training to their workers, and little is known about the extent to which conversations about sexual and reproductive health already occur between child welfare workers and youth. Thus, this study aimed to: a) assess baseline attitudes, knowledge, and communication among child welfare workers regarding sexual health of …

The Use Of Clinical Judgment In Differentiating Symptoms Of Autism Spectrum Disorder From Those Of Other Childhood Conditions: A Delphi Study, Staci Jordan

Electronic Theses and Dissertations

More and more, due to long waiting lists at diagnostic clinics and access barriers for certain segments of the population, schools are often the first environment in which children are evaluated for ASD (Sullivan, 2013). And while accurate identification of autism spectrum disorders (ASD) is essential for proper treatment and service provision, large percentages of school and community-based identifications of ASD are overturned when children are re-evaluated with strict clinical criteria (Wiggins et al., 2015). In part, challenges faced in accurately differentiating ASD from other conditions may be contributed to the diagnostic complexities of the condition itself. Clinical expertise is …

A Gendered Intersectional Analysis Of The Private Security Industry, Noa Shapira

Electronic Theses and Dissertations

This thesis conducts an intersectional gendered analysis of the privatization of wars and armed conflicts through the use of private military and security companies (PMSC's), thus responding to an existing gap in scholarship on this matter. Two methodologies were used for this analysis. The first is a discourse analysis and interviews conducted in the 5th annual assembly of the International Code of Conduct Association, in November 2018. The second is a search in newspapers and secondary sources for specific incidences of gender-related human rights abuses. Based on lessons learned from peacekeeping operations, this thesis aims to answer the question how …

Defining The Relationship: Intentional Decision-Making And Sexual Risk In Adolescent And Young Adult Romantic Relationships, Kayla Knopp

Electronic Theses and Dissertations

This dissertation presents three manuscripts addressing different sets of findings related to the "defining the relationship" (DTR) talk in adolescents' and young adults' romantic relationships. Paper 1 describes descriptive results from two studies, one utilizing a college undergraduate young adult sample (N = 341) and the other using a nationwide online sample of 15 to 17-year-old adolescents (N = 248). Key findings from Paper 1 indicate that DTR talks were used frequently in the relationships of young people, and were associated with relationship commitment and sexual behaviors. Paper 2 describes more in-depth analyses testing associations between having a …

Dominating The Disease: A Transnational Feminist Perspective Of U.S. Health Coloniality, Jessica Ann Johnson

Electronic Theses and Dissertations

HIV has been a pandemic since the 1980s with 70 million people infected since the beginning, about 35 million people have died of complications resulting from HIV, and an estimated 36.9 million people living with HIV in 2017 (WHO, "HIV and AIDS"). Many organizations around the world have tried to tackle this issue, however most of these organizations are based in the West or have Western organizations holding the majority of power and control. People in these organizations have the intention of ending the spread of HIV, but they also sometimes spread Western ideology.

This work brings together communication scholarship …

Behind The Mask Of Morality: (E)Urochristian Bioethics And The Colonial-Racial Discourse, Jennifer L. Mccurdy

Electronic Theses and Dissertations

The discipline of bioethics is insufficient and ineffective in addressing the persistent issues of racism and racial inequalities in healthcare. A minority of bioethicists are indeed attentive to issues such as implicit bias, structural racism, power inequalities, and the social determinants of health. Yet, these efforts do not consider the colonial-racial discourse -- that racism is an instrument of eurochristian colonialism, and bioethics is a product of that same colonial worldview. Exposing mainstream bioethicists to the work of anti-colonial scholars and activists would provide bioethicists a framework through which they would be better equipped to address issues of race through: …

Photoassisted Synthesis Of Complex Polyheterocycles Via Esipt-Driven Dearomative Intramolecular Cycloadditions, Dmitry Kuznetsov

Electronic Theses and Dissertations

This research is focused on the development of novel photoassisted synthetic methodologies that provide straightforward access to complex and diverse libraries of polyheterocycles from modularly assembled precursors. All methods are based on the dearomative cycloadditions between two components: (i) o-azaxylylenes, generated by the excited-state intramolecular proton transfer, and (ii) tethered arene groups.

We have demonstrated the synthetic utility of four new photoinduced processes that yield complex products amenable for post-photochemical modifications:

• [4+4] Cycloaddition of o-azaxylylenes to 1,3,4-oxadiazoles with subsequent dinitrogen extrusion. This reaction furnishes compounds outfitted with epoxide fragments, which undergo ring-openings with various nucleophiles; furthermore, the oxidized products …

Mechanistic Insight Into Tau Fibril Cross-Seeding Barriers: Structural Order And Disorder, Hilary Ann Weismiller

Electronic Theses and Dissertations

Filamentous deposition of microtubule-associated protein tau is a hallmark for a number of neurodegenerative diseases collectively termed tauopathies. While tau fibrils are directly linked to the etiology and pathogenesis of these diseases, fibril morphology and their phenotypic presentation can be quite disparate. Alternative splicing of tau results in two main isoform groups, four-repeat (4R) tau and three-repeat (3R), identified by their number of microtubule binding repeats. Some diseases show deposition of both 4R and 3R isoforms, while others show preferential deposition of only one type. The conformational templated growth scheme and trans-synaptic spreading of fibrils is influenced by fibril conformation. …

Translation Of Partially Decayed Messenger Rnas In Yeast, Ana Luisa Franklin

Electronic Theses and Dissertations

Flaviviruses are positive-strand single-stranded RNA viruses that are known to form pseudo-knot RNA structures that halt the progression of 5’→3’ exonuclease Xrn1. We show that these viral Xrn1-resistant structures (xrRNAs) can be used to protect specific homologously-expressed messenger RNAs from 5’→3’ degradation. We investigated the effects of addition of xrRNAs, artificially-installed into the intergenic region of bicistronic mRNA reporters, in the observed levels of protein expression in yeast. The reporters also contain an internal ribosome entry site from the cricket paralysis virus (CrPV IRES) to allow for cap-independent translation of the decay-protected gene, LacZ, encoding the enzyme β-galactosidase. Through …

"Femme Fatales Of Faith": Queer And "Deviant" Performances Of Femme Within Western Protestant Culture, Kelsey Waninger Minnick

Electronic Theses and Dissertations

Women and queer folk are changing the religious landscape of Christianity in America, and the scope of visibility for these figures and their apostolic endeavors is widening as more and more Christians are seeking out communities rooted in doctrines of love and connection rather than exclusion and hegemonic piety. Thinking on this phenomenon, this dissertation focuses on the intersectional dilemmas of faith practice and rhetorical discourse with Western Christianity, particularly as it revolves around those female pastors and clergy - considered "dangerous" by many within the church - who are advocating for a more inclusionary church space. By conducting a …

New Insights Into Mycofactocin Biosynthesis, Structure And Function, Richard Selorm Ayikpoe

Electronic Theses and Dissertations

Mycofactocin is a putative ribosomally synthesized and post-translationally modified peptide (RiPP)-derived redox cofactor. Its biosynthesis is accomplished through the dedicated actions of the products of six conserved genes, mftABCDEF. The mycofactocin pathway is one of the most widely distributed RiPP systems in bacteria however, this distribution is heavily skewed towards the Mycobacteria genus including human pathogenic variants such as M. tuberculosis and M. ulcerans. Gene expression studies have demonstrated the essentiality of the pathway in the ability of M. tuberculosis to utilize the host's cholesterol as sole carbon source during latency. However, the biosynthesis, structure and physiological function …