Digital Commons Network^™

Struggle For Sovereignty: An African-American Colonization Attempt And Delicate Independence In Mid-Nineteenth Century Central America, Matthew D. Harris

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis uses a series of United States foreign relations documents centered around an 1862 attempt by Abraham Lincoln to colonize parts of Central America with freed African Americans. Traditionally, these communications have been used by historians for U.S. foreign relations or Black resettlement history. Here, instead, this collection is used to display the major threats to Central American sovereignty in the mid-nineteenth century in their own words. The collection reveals that two of the threats were foreign imperialistic thought and racial instability. However, the third, and ultimately most destabilizing threat to the region, was the five nations' rivalry amongst …

Three Essays In Public Economics, Perry Ferrell

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation investigates policy-relevant topics in public economics and law and economics. The first chapter applies the transitional gains trap to legal land title enfranchisement in developing countries. The second chapter examines the role of US Forest Service avalanche forecasting operations in preventing human-involved backcountry avalanche accidents. The final chapter explores what extent local newspaper coverage has on traffic stop behavior by local law enforcement. In the first chapter “Titles For Me But Not For Thee: Transitional Gains Trap of Property Rights Extension in Colombia” I apply Tullock’s “transitional gains trap” to the formalization of property titles in Latin America …

The Effects Of Intrinsic Foot Muscle Strengthening On Foot Posture, Balance, And Agility In Ice Hockey Players, Rebecca Eve Veltrie

Graduate Theses, Dissertations, and Problem Reports (ETD)

Context: Research has shown that intrinsic foot muscle strengthening over a 4-week period is beneficial for improvements in dynamic postural control, function, stability and foot posture. Ice hockey is a sport that requires immense levels of balance, stability and performance on the lateral aspect of the skate. With research lacking on the impact of intrinsic foot muscle strengthening on ice hockey athletes’ balance, foot posture and performance, implementation of such a program may be beneficial for ice hockey players. Objective: The purpose of this study was to explore the effects of foot intrinsic muscle strengthening versus a traditional …

The Effect Of Blended Learning On Language Proficiency Of An Efl Class: An Empirical Study, Jamile Sulam Tango Rojas

Graduate Theses, Dissertations, and Problem Reports (ETD)

The combination of online learning and face-to-face lessons have become a relevant learning model in English Language Teaching in the last years. The goal of this research study was to investigate the integration of such a blended learning approach in an EFL class in Bolivia. The study was conducted at a binational language institution, and it focused on the effect of blended learning on the students’ overall language proficiency and each language skill individually. Data was collected via a proficiency pre-test at the beginning of the experiment, two quizzes during the module, and a final exam, all of them to …

New York Sons Of Erin: Nativism, Identity, And The Importance Of Irish Ethnicity In The Civil War Era, Abbi E. Smithmyer

Graduate Theses, Dissertations, and Problem Reports (ETD)

Nineteenth-century Irish Americans were bound together by a shared ethnic identity that was shaped by a strong attachment to Ireland, a closeness enhanced by their devotion to the Catholic faith, and an American population that held a deep prejudice against the ethnic group. This was especially the case in New York, which had the largest population of Irish Americans in the United States during this time. While many Sons of Erin enlisted into New York regiments, their most famous unit was the Irish Brigade. Therefore, the actions and treatment of the Irish Brigade greatly influenced the way immigrant service in …

The Visual And Spectrophotometric Effect Of External Bleaching On Omnichroma Resin Composite And Natural Teeth, Michael Brian Evans

Graduate Theses, Dissertations, and Problem Reports (ETD)

Objective: To determine the visual and spectrophotometric effect external tooth bleaching has on natural tooth structure and OMNiCHROMA composite at various number of treatments. Variables were compared to determine if there is a detectable difference between the composite and the tooth before and after bleaching.

Methods: Preparation and restoration of 25 previously extracted teeth was completed. OMNiCHROMA composite was used. Each tooth was measured visually with a VITA shade guide and a colorimeter. Measurements were recorded before bleaching, after 5 and 10 treatments. Statistical analysis was completed and ΔE values between the composite and tooth were compared between the 3 …

Clear Aligner Therapy Vs. Traditional Brackets On Smile Arc, Sarah Elizabeth Larue

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background and Objectives: More so than ever, the public is becoming exceedingly aware of esthetics, and will evaluate their treatment outcome based upon the improvement to their smile and overall enhancement of their facial appearance. Smile arc is considered to be a key component of facial esthetics. Literature has demonstrated that orthodontic treatment mechanics utilizing traditional brackets and wires can cause flattening of the smile arc and that smiles with flatter arcs are judged to be less attractive. The aim of this study was to determine whether clear aligner therapy can help to preserve or improve the smile arc …

Hepatitis B In At-Risk Groups: Three Studies To Guide Education, Testing, And Vaccination Efforts In West Virginia, Stacy Tressler

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background and Objectives: For over a decade, West Virginia’s (WV) rate of acute hepatitis B has been the highest in the United States (US). In 2017, WV’s rate was 11.7 per 100,000 population, almost 12 times higher than the national rate. The increase in acute hepatitis B cases is largely due to substance misuse, including injection drug use (IDU). Hepatitis B is a vaccine preventable disease yet many at-risk adults remain unvaccinated and susceptible to infection. The objectives of our studies are to 1) describe yearly changes in acute hepatitis B incidence in WV and assess county-level impact of the …

Knowledge Of Content For Clinical Nursing Educators: An Ethnographic Investigation Of Clinical Experts Who Transition To The Role Of Novice Clinical Nursing Educator, Stacy Wheat Huber

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this research study was to identify and describe the teaching practices and the grounding experiences of the teaching practices novice educators use when teaching undergraduate students in the clinical patient care area. The following research questions guided this investigation: What teaching practices and teacher knowledge do novice clinical nursing educators demonstrate or draw from when teaching undergraduate nursing students in the clinical patient-care area? In what ways do novice clinical nursing educators change or adapt their teaching behaviors as a response to the context of the teaching/learning environment? What grounding educational or professional experiences do novice clinical …

Gendered Access To Wetland Gardens (Dimba) In Northern Malawi, Rhoda Nyirenda

Graduate Theses, Dissertations, and Problem Reports (ETD)

Due to increasing degradation of upland fields and in the face of erratic rains and increasing occurrence of droughts and floods and increasing food prices, smallholder farmers in many places across sub Saharan Africa engage in wetland cultivation for livelihoods security (Mutambikwa et al., 2000). A cultivatable wetland area is considered prime land, and a desired opportunity that every rural family need for the purpose of food production. Studies have indicated that wetland cultivation significantly contributes to household’s income and food security. Wetland agriculture, however, in Malawi and most of the sub-Saharan African countries is marred with issues of access …

On Body Mass Index Analysis From Human Visual Appearance, Min Jiang

Graduate Theses, Dissertations, and Problem Reports (ETD)

In the past few decades, overweight and obesity are spreading widely like an epidemic. Generally, a person is considered overweight by body mass index (BMI). In addition to a body fat measurement, BMI is also a risk factor for many diseases, such as cardiovascular diseases, cancers and diabetes, etc. Therefore, BMI is important for personal health monitoring and medical research. Currently, BMI is measured in person with special devices. It is an urgent demand to explore conveniently preventive tools. This work investigates the feasibility of analyzing BMI from human visual appearances, including 2-dimensional (2D)/3-dimensional (3D) body and face data.

Motivated …

The Effects Of Instructor Self-Disclosure On Students’ Cognitive Learning: A Live Lecture Experiment, Stephen Michael Kromka

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this dissertation was to examine the causal influences of relevant (and irrelevant) instructor self-disclosure on student affect and cognitive learning. Relevant self-disclosure involves the instructor directly relating personal disclosures to important lesson content, whereas irrelevant self-disclosure involves the instructor’s personal disclosures straying from the lesson topic. Given previous correlational self-disclosure research, the researcher predicted that relevant (compared to irrelevant) instructor self-disclosure would lead to increased reports of affect toward the instructor. The researcher also predicted that instructor self-disclosure relevance (compared to irrelevance) would enhance lesson coherence, and in turn, foster students’ cognitive learning. The researcher conducted a …

Effects Of Appalachian Culture And Pregnancy Status On Pain-Related Fear, Cecelia Irene Nelson

Graduate Theses, Dissertations, and Problem Reports (ETD)

Fear of pain during pregnancy is an understudied phenomenon with important implications for prenatal and postpartum functioning. The aim of the current study was to understand the role of pregnancy and culture on pain-related fear in Appalachia. Archival datasets, and a new sample of women recruited via Amazon’s Mechanical Turk, were sources of data. Participants completed the Fear of Pain Questionnaire-9 and responded to demographic questions in order to ascertain whether they were pregnant at the time of the study as well as the number and nature of prior pregnancies. In support of hypotheses, results indicated that pregnant women reported …

Interpretations Of Bicoherence In Space & Lab Plasma Dynamics, Gregory Allen Riggs

Graduate Theses, Dissertations, and Problem Reports (ETD)

The application of bicoherence analysis to plasma research, particularly in non-linear, coupled-wave regimes, has thus far been significantly belied by poor resolution in time, and/or outright destruction of frequency information. Though the typical power spectrum cloaks the phase-coherency between frequencies, Fourier transforms of higher-order convolutions provide an n-dimensional spectrum which is adept at elucidating n-wave phase coherence. As such, this investigation focuses on the utility of the normalized bispectrum for detection of wave-wave coupling in general, with emphasis on distinct implications within the scope of non-linear plasma physics. Interpretations of bicoherent features are given for time series from …

Utilizing Conservation Genetics As A Strategy For Recovering The Endangered Candy Darter (Etheostoma Osburni) In West Virginia, Brin E. Kessinger

Graduate Theses, Dissertations, and Problem Reports (ETD)

The Candy Darter (Etheostoma osburni) is a small freshwater fish native to the New River drainage in West Virginia and Virginia that was listed as endangered in November 2018. It has been extirpated from much of its historic range in West Virginia, restricting it to the Gauley and Greenbrier river drainages. In addition to extirpations, the species is threatened by introgressive hybridization with the invasive Variegate Darter (E. variatum). Previous research primarily focused on hybridization, but population genetic analyses were limited. Population genetic analyses aim to identify distinct populations through genetic structure and characterize the levels …

Impact Of Particle Injection On Gas Flow At Elevated Pressure: A Numerical Study, Ansan Pokharel

Graduate Theses, Dissertations, and Problem Reports (ETD)

Modeling of a turbulent two-phase gaseous-solid flow still faces challenges. The present study is devoted to two-phase flow in an annular pipe (hollow cylinder) operating at an elevated pressure of 15 bar and moderate Reynolds numbers of circa 6 x 10³. The influence of the various factors – such as the particle loading, the interaction between the phases, and turbulent dispersion – on the flow dynamics is systematically studied by means of the computational simulation employing the ANSYS FLUENT commercial package. To be specific, particle loading with a volumetric fraction of 1.2 % is defined as high particle …

Automated And Standardized Tools For Realistic, Generic Musculoskeletal Model Development, Trevor Rees Moon

Graduate Theses, Dissertations, and Problem Reports (ETD)

Human movement is an instinctive yet challenging task that involves complex interactions between the neuromusculoskeletal system and its interaction with the surrounding environment. One key obstacle in the understanding of human locomotion is the availability and validity of experimental data or computational models. Corresponding measurements describing the relationships of the nervous and musculoskeletal systems and their dynamics are highly variable. Likewise, computational models and musculoskeletal models in particular are vitally dependent on these measurements to define model behavior and mechanics. These measurements are often sparse and disparate due to unsystematic data collection containing variable methodologies and reporting conventions. To date, …

Data Driven Intelligent Grid Stability Monitoring And Adaptive Emergency Response, Hasan Ul Banna

Graduate Theses, Dissertations, and Problem Reports (ETD)

Power grids are large cyber-physical systems with physical operation controlled and integrated through communications. The technological breakthroughs made by the availability of low-cost, high speed communications, larger storage spaces, greater internet bandwidths have led to increased attentions towards advantages of these systems. The use of Phasor Measurement Unit (PMU) in complex interconnected power system for monitoring and control has increased significantly. This has resulted in huge amounts of data and growing databases, thus gearing towards an era where utilities might encounter an enormous amount of data daily from their measurement units including sensitive information useful for daily operations. With increasing …

Depth Dependent Atomic Valence Determination In La0.7sr0.3mno3 Thin Films Using Synchrotron Techniques, Robbyn B. Trappen

Graduate Theses, Dissertations, and Problem Reports (ETD)

The valence of atoms often has a strong effect on the properties of materials, such as magnetism, conductivity, and superconductivity. The atomic valence is often perturbed at the surface and/or interface and this deviation may play a strong role in many physical phenomena such as interfacial coupling and dead layers, both magnetic and electric. In this dissertation, I present a non-destructive approach of combining two X-ray absorption detection modes, electron yield and fluorescence, with very different probing depths in conjunction with theory to map out the layer-by-layer valence of a thin film.

The weighted average Mn atomic valence as measured …

Making Armenian Politically Exposed Persons’ Money Public: A Data-Driven Journalism Project That Aims To Create A Database Of Armenian Mps’ Assets, Ani Hovhannisyan

Graduate Theses, Dissertations, and Problem Reports (ETD)

This data-driven journalism project tackles an age-old problem that seems common in virtually every government around the world: governmental officials hiding assets. By applying the theory of social responsibility, this paper uses data-journalism methods to trace the full financial assets of Armenian members of parliament and eventually making those assets and income declarations available via an interactive website to the Armenian public as well as other journalists throughout the country and region.

Computer-Assisted Instruction Compared To Traditional Instruction On Letter Recognition For Preschoolers With Special Needs, Jamie Nicole Harvey

Graduate Theses, Dissertations, and Problem Reports (ETD)

The need to reach learners with disabilities in inclusive early childhood classrooms has grown with increasing legislative mandates. An essential area of focus is in early literacy and alphabet letter recognition. One such way to bridge the gap includes computer assisted instruction as an instructional method. A concurrent treatment single case design was used to compare the rate of letter acquisition in young children with disabilities (n=6) between computer assisted instruction program, Teach Town Basics™, and traditional teaching of concepts in early childhood inclusive classrooms. Participants received each treatment in random order and data were graphed daily on …

Description Of Motor Control Using Inverse Models, Anton Sobinov

Graduate Theses, Dissertations, and Problem Reports (ETD)

Humans can perform complicated movements like writing or running without giving them much thought. The scientific understanding of principles guiding the generation of these movements is incomplete. How the nervous system ensures stability or compensates for injury and constraints – are among the unanswered questions today. Furthermore, only through movement can a human impose their will and interact with the world around them. Damage to a part of the motor control system can lower a person’s quality of life. Understanding how the central nervous system (CNS) forms control signals and executes them helps with the construction of devices and rehabilitation …

Bending Response Of Timber Mortise And Tenon Joints Reinforced With Filler-Modules And Frp Gussets, Andrew Robert Pacifico

Graduate Theses, Dissertations, and Problem Reports (ETD)

In 2013, the California Bay Area (CBA) passed a set of ordinances to ensure that their 10,000 plus timber soft-story buildings were prepared for seismic events, through nondestructive evaluation methods. Many property owners are searching for an affordable retrofitting system that will also meet CBA’s new laws focusing on installations by the mandated deadlines in 2020. Over the past three to four decades, Fiber Reinforced Polymer (FRP) composites have found their way into the civil infrastructure sector for rehabilitation. The objective of this study is to evaluate the bending behavior retrofitted mortise and tenon timber joints reinforced with engineered wood …

Supporting The Injured Athlete: Coaches’ Perspectives On Providing Social Support, Stefanee Opal Maurice

Graduate Theses, Dissertations, and Problem Reports (ETD)

Injury is an inevitable facet of sport participation, and injured athletes require support from coaches. However, research on injured athletes highlights a lack of support from coaches. Building on the conceptual model proposed by Maurice et al., this study uses the International Sport Coaching Framework (ISCF) to examine ways contextual coaching knowledge is used to support athletes throughout rehabilitation. Previous research has focused on the knowledge types but has neither addressed the integration of the knowledges in a single study nor examined them in an injury context. A generic qualitative approach was used to examine 13 NCAA DI coaches’ perception …

Security Bug Report Classification Using Feature Selection, Clustering, And Deep Learning, Tanner D. Gantzer

Graduate Theses, Dissertations, and Problem Reports (ETD)

As the numbers of software vulnerabilities and cybersecurity threats increase, it is becoming more difficult and time consuming to classify bug reports manually. This thesis is focused on exploring techniques that have potential to improve the performance of automated classification of software bug reports as security or non-security related. Using supervised learning, feature selection was used to engineer new feature vectors to be used in machine learning. Feature selection changes the vocabulary used by selecting words with the greatest impact on classification. Feature selection was able to increase the F-Score across the datasets by increasing the precision. We also explored …

Health Literacy And Family Factors In The Transition To Adult Care In Adolescents With Type I Diabetes, Ellen M. Manegold

Graduate Theses, Dissertations, and Problem Reports (ETD)

Successful management of type 1 diabetes (T1DM) in adolescence involves multiple daily tasks, developmental changes, and the expectation of transition to an adult provider. Health literacy is one variable to consider in the context of transition, as studies have demonstrated the correlation of parental health literacy with health behaviors and outcomes, yet not studied adolescent health literacy in T1DM. Family factors (e.g., management responsibility, diabetes-specific family conflict, parental support) also are important to behavior and health outcomes in adolescents with T1DM. Study aims were to: 1) examine the association of adolescent health literacy to transition readiness and health outcome in …

Trustworthiness And Stability In Same And Different Sex Relationships: Heterosexuals’ Attitudes Toward Bisexuality, Jeneice Shaw

Graduate Theses, Dissertations, and Problem Reports (ETD)

Although bisexuals are reportedly the largest sexual orientation minority group in North America (Copen, Chandra, & Febo-Vazquez, 2016), there is scant research examining the population without also including lesbian women and gay men. However, according to the American Psychological Association’s (2012) Guidelines for Psychological Practice with Lesbian, Gay, and Bisexual Clients, psychologists should endeavor to understand the unique experiences of the bisexual population. Bisexual individuals face different stereotypes, conflict within the LGB community, and different life experiences related to other sexual orientations (Rust, 2000). Two unique stereotypes applied to the bisexual community are that bisexuality is an unstable sexual orientation …

Time-Dependent Deformation And Associated Failure Of Roof In Underground Mines, Yuting Xue

Graduate Theses, Dissertations, and Problem Reports (ETD)

In underground coal mines, roof falls are a major contributor to injuries and fatalities. Studies have related the occurrence of roof fall to weak immediate roof, high horizontal stress, entry orientation, etc. An often-neglected factor in studies on this topic has been the influence of time-dependent behavior of the roof rock on roof falls. The time-dependent roof failure activity involves both intact and failed rocks. Numerical simulation techniques are available that include time-dependent behavior; however, they lack constitutive models that consider both the intact and the failed behavior of rock. In addition, input properties for the creep models only include …

Measuring The Effects Of Interpretive Journalism On Trust And Credibility Perceptions In The Context Of Political News Coverage, Scott William Siker

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study examines the effects of interpretive journalism on trust and credibility perceptions. Specifically, this study investigates interpretive journalism in the context of political news coverage and also examines the relationship between political ideology and the aforementioned variables. This study uses a 2 (interpretive journalism; fact-based journalism) x 2 (political ideology: conservative leaning; liberal leaning) between-subjects online experiment to test the proposed hypotheses. Findings illustrate the predictive value of credibility to trust within the context of political news coverage. Additionally, this study shows that individuals exhibit higher perceptions of trust and credibility towards fact-based political coverage as opposed to interpretive …

Chemical Analysis Of Firearm Discharge Residues Using Laser Induced Breakdown Spectroscopy, Courtney Helen Vander Pyl

Graduate Theses, Dissertations, and Problem Reports (ETD)

According to the Gun Violence Archive, in 2017, firearms were involved in 57,134 criminal incidents in the United States. The detection of firearm discharge residues (FDR), including inorganic and organic gunshot residues, can provide essential information in such investigations. For instance, when the question of suicide or murder arises, estimating the barrel to victim distance plays a critical role in the outcome of the case. In addition, clothing, wounds and other target materials are often inspected to determine if a bullet has produced an entry or exit orifice. Currently, the most common method for distance determination and identification of bullet …