Digital Commons Network^™

The West Point Talent Based Branching Program As A Predictor Of Performance At The Army’S Field Artillery Basic Officer Leadership Course: Implications For Officer Retention, Ryan Oldroyd Scott

Electronic Theses and Dissertations

Junior officer attrition has increased over the last two decades. The early departure of army officers leaves a dearth of middle- and senior-level leadership, creating risk for future military readiness. West Point leaders theorized that new officers’ poor person–job fit within their specific career fields contributed to attrition. West Point implemented a talent-based system to place new officers into branches that should offer a stronger person–job fit, hoping it would reduce officer attrition. To begin the investigation on how this talent-based system affects attrition, this study examined graduates who joined the field artillery career field to ascertain if the various …

Care Transition Assessment Redesign In The Acute Care Setting, Darla M. Johnston

Electronic Theses and Dissertations

There is a gap in case management professional practice with a lack of consistent, research-based transition evaluation (TE) tools available and used in practice. An evidence-based case management TE is necessary to develop a holistic and comprehensive discharge plan for hospitalized patients. Updating and implementing an evidence-based case management TE would positively impact the transition of care and promote improved health outcomes including a reduction in readmissions. This quality improvement project used a quantitative nonexperimental, interventional pretest-posttest design. Kirkpatrick’s multidimensional knowledge attitudes assessment (KAP) education evaluation model was used to assess (1) the influence an educational offering on evidence-based assessment …

Exploring The Experiences Of Underrepresented Students Pursuing Health-Related Graduate Or Professional Programs, Alison Williams

Electronic Theses and Dissertations

For many years graduate and professional education programs for the health professions have sought to increase the diversity of their student body to include students from a wider variety of backgrounds. Increasing the diversity of healthcare providers is an essential component of addressing inequities in healthcare. However, despite initiatives to increase racial and ethnic diversity in the health professions, these professions remain largely White and female. Previous researchers have sought to identify the reasons that racial and ethnic minorities are underrepresented in healthcare, and the barriers to persistence and success. Little research exists explaining why men are underrepresented in the …

Fostering An Inclusive Learning Environment Through Course Development: A Program Evaluation, Rachel K. Rogers

Electronic Theses and Dissertations

This evaluation was chosen to address the desire of students to see themselves and their lived experiences in their coursework at University College, the location of this study. The purpose was to complete a utilization-focused evaluation that assessed first, the formal and informal practices involved in the course development process within an academic department at University College, University of Denver, and second to determine the extent to which the course development process contributes to an inclusive learning environment. Data were collected using qualitative methods including semi-structured interviews of key stakeholders in the course development process, observations of weekly course development …

A Qualitative Inquiry Of Research Administrator Perceptions Of Job Satisfaction In A Central Research Administration Unit At The University Of Denver, Noelle L. Strom

Electronic Theses and Dissertations

The Sponsored Programs Administration (SPA) team provides critical research administration services for the research community at the University of Denver. As research funding continues to rise at the University of Denver, retention of research administrators is critically important. Job satisfaction is key to employee engagement and retention. Higher job satisfaction contributes to several positive outcomes for institutions, including lower turnover, higher productivity, lower costs, and employee loyalty. The need to retain experienced research administration professionals is highlighted by the fact that few formal educational routes exist that prepare employees for a career in research administration; rather, developing expertise takes a …

Interactive Computer-Based Simulations As Exploratory Learning Activities., Derek Mcclellan

Electronic Theses and Dissertations

Typical college lectures follow a direct instruction framework, where instructors deliver a lecture, followed by an activity. Exploratory learning flips this routine by providing students with an activity prior to instruction. Research suggests that this inversion benefits students’ conceptual understanding and ability to transfer their knowledge. The majority of exploratory learning tasks in the literature are problem-solving activities. The current work investigates the use of computer-based simulations during exploratory learning, and whether manipulating the cognitive load of the activity impacts learning. In Experiment 1, undergraduate students (N=66) were randomly assigned to explore a simulation-based circuit construction activity prior …

“Difference In/At The Center" A Transnational Approach For Mobilizing International Multilingual Graduate Writers' Writing Assets During Writing Instruction., Olalekan Adepoju

Electronic Theses and Dissertations

This research project presents an empirical exploration of how the writing assets possessed by international multilingual graduate writers impact the theory and pedagogical practices in writing studies, especially regarding the approaches to teaching writing. Extant scholarship in writing studies, especially on second language research/teaching, translingual writing practices, and asset-based writing pedagogy has engaged issues of difference in language, race, culture, as well as funds of knowledge, highlighting the impacts of these differences on the academic success of non-native English speakers in US schools and colleges. My dissertation builds on these trends and highlights the narratives, perceptions, and experiences of international …

False Memories Are Impacted By Semantic Pairing Of Drm Lists., Ryan Coleman

Electronic Theses and Dissertations

In the DRM paradigm, experience of semantically related words leads to false memories of related words called critical lures. These false memories serve as evidence that the relationship between items in a DRM list contribute to an overall gist or central concept for the experience. The present studies aim to investigate whether the higher-order semantic relationship that exists between different DRM lists can also influence recognition memory. Study 1 compared memory confidence ratings for list items and critical lures to two metrics: “Temporal Contiguity”, how closely in time lists appeared to each other at encoding, and “Semantic Distance”, the semantic …

Novel Breath Collection Techniques For Detection Of Covid-19., James Morris

Electronic Theses and Dissertations

Volatile Organic Compounds (VOC) generated endogenously in the human body can be used to detect diseases that induce oxidative stress and inflammation. Breath analysis has been used for the detection of diseases such as COPD, Depression, Lung Cancer and most recently COVID-19. Methods such as Exhaled Breath Condensate (EBC), Sorbent Tubes, Solid Phase Microextraction (SPME), and silicon microreactors have shown considerable capability in extracting and concentrating trace VOC’s present in human breath. Silicon microreactors functionalized with capture agents to derivatize carbonyl compounds are effective but the overall maximum flow rate of breath sample possible during analysis is low, making direct …

A Data-Driven Multi-Regime Approach For Predicting Real-Time Energy Consumption Of Industrial Machines., Abdulgani Kahraman

Electronic Theses and Dissertations

This thesis focuses on methods for improving energy consumption prediction performance in complex industrial machines. Working with real-world industrial machines brings several challenges, including data access, algorithmic bias, data privacy, and the interpretation of machine learning algorithms. To effectively manage energy consumption in the industrial sector, it is essential to develop a framework that enhances prediction performance, reduces energy costs, and mitigates air pollution in heavy industrial machine operations. This study aims to assist managers in making informed decisions and driving the transition towards green manufacturing. The energy consumption of industrial machinery is substantial, and the recent increase in CO2 …

Cad System For Early Diagnosis Of Diabetic Retinopathy Based On 3d Extracted Imaging Markers., Ahmed Sleman

Electronic Theses and Dissertations

This dissertation makes significant contributions to the field of ophthalmology, addressing the segmentation of retinal layers and the diagnosis of diabetic retinopathy (DR). The first contribution is a novel 3D segmentation approach that leverages the patientspecific anatomy of retinal layers. This approach demonstrates superior accuracy in segmenting all retinal layers from a 3D retinal image compared to current state-of-the-art methods. It also offers enhanced speed, enabling potential clinical applications. The proposed segmentation approach holds great potential for supporting surgical planning and guidance in retinal procedures such as retinal detachment repair or macular hole closure. Surgeons can benefit from the accurate …

Experimental And Numerical Studies Of Laser Powder-Bed Fusion Process With Ti-6al-4v Powder: (1) Porosity And Mechanical Properties, And (2) Transient Phenomena In One- And Two-Dimensional Fabrications., Santosh K. Rauniyar

Electronic Theses and Dissertations

Laser powder bed fusion (L-PBF) process represents a form of metal additive manufacturing (AM) where micron-level powdered material is selectively melted and fused layer by layer to create intricate three-dimensional parts. This process involves rapid melting and solidification, leading to intense thermocapillary convection within the molten pool. The melt pool is a crucial element of the L-PBF process and refers to the localized region where the powder particles are melted and solidified to form each layer of the printed part. The shape and dimensions of the melt pool directly influence the accuracy and surface finish of the printed part. Precise …

Non-Western Rendition Of Ambient Rhetoric Of Khajuraho Monuments., Shiva Hari Mainaly

Electronic Theses and Dissertations

This dissertation develops an ambient rhetoric: a living practice that is more disclosive than communicative, more entangled than intersectional, and more subtle than explicit and evidential. Rather than exploring the symbology, iconography, texture, and artistic integrity of Khajuraho monuments, I claim that Khajuraho monuments aim at convincing visitors with their persuadability and affectability inherent in their material bases, architectural panels, fractal design, allegorical cast, aura of attunement, and the environment in which the monument complex is nestled. Khajuraho groups of monuments in Central India, matchless in their monumentality, dynamic in their adjustment to the shifting socio-politico-cultural landscape in the world, …

Fbg Αc 389 – 402 Modulates Factor Xiii Crosslinking In The Fibrinogen Αc Region., Francis Dean Orlina Ablan

Electronic Theses and Dissertations

Fibrinogen (Fbg) is a coagulation protein critical for clot formation. Coagulation Factor XIII (FXIII) is a calcium-dependent transglutaminase that crosslinks reactive glutamines (Q) and lysines (K) between fibrin and other anti-fibrinolytic proteins. In the presence of Ca²⁺, FXIII could be activated non-proteolytically (FXIII-A°), or proteolytically by thrombin (FXIII-A*). Significant increases in clot stability and red blood cell retention are linked to FXIII activity in the fibrinogen αC region (Fbg Aα 221 – 610). This region contains several FXIII-reactive glutamines and lysines, as well as a binding site for FXIII-A* (Fbg αC 389 – 402) that includes a key …

Using Graphic Novels To Teach Economics Content To High School Students With Extensive Support Needs., Caroline Mae Fitchett

Electronic Theses and Dissertations

The purpose of social studies instruction in school is to facilitate the growth of competent citizens (National Council for the Social Studies [NCSS], 2013). Despite the recognized benefit of social studies instruction, emphasis on this subject has decreased over time, and has ultimately been termed a “dispensable subject” (Fitchett & Haefner, 2010). Social studies is an even more marginalized subject area for students with disabilities (Zakas et al., 2013). Expanding the research in this area is not only necessary to improving social studies academic content acquisition but is also likely to facilitate greater independence for students post-school – and by …

The Relationship Between High School Stem Courses And Students Attending Low-Income Schools' College Major And Career Choices: A Social Cognitive Perspective., Don Bacon

Electronic Theses and Dissertations

Science, technology, engineering, and mathematics (STEM) education has received significant attention in the United States since the Space Race with Russia beginning in the 1950s. Most recently, STEM education has received national attention because of the scarcity of qualified STEM graduates taking on the growing number of STEM jobs in the United States. Additionally, an issue exists within STEM college majors and careers, a lack of Black, Latinx, and female students are pursuing these fields hurting the overall number of STEM college students and career holders and negatively impacts the diversity within STEM fields in the United States. The purpose …

A Practice-Based Inquiry Into The Correlation Between Nursing Retention Rates And Resiliency, Kelly J. Watson

Electronic Theses and Dissertations

Nurses are the frontline in the security of the United States. Their wellbeing and retention in the workforce is of the utmost of importance. Nurses are leaving at increasing levels with just over 27% turnover rates across the nation in 2021. Organizations are experiencing increasing fiscal losses and the average loss for a nurse leaving is just over $46,000. The prioritization of nurses’ wellbeing and taking steps to address policy that promotes the sustainability of this very valuable workforce has the potential to pay high dividends for nurses individually, the security of the nation, and the good of the organization. …

A Virtual Method For Establishing Femoral Stem Position In Total Hip Arthroplasty, Samuel Mattei

Electronic Theses and Dissertations

Total hip arthroplasty (THA) is one of the most successful orthopedic surgeries performed, in which the hip joint is reconstructed to improve functionality and decrease pain in the joint. Despite the success of these procedures, femoral stem misalignment remains an area that influences THA success. The relationship between the femoral stem geometry and implanted femoral stem size and orientation is underreported due to limitations in the collection of radiographic data used for clinical pre-operative templating. Furthermore, the influence of anatomic measurements on the direction and size of the femoral stem are not considered due to imaging technique and difficulties associated …

Finite Element Modeling Of Patient-Specific Total Shoulder Arthroplasty, Ignacio Rivero Crespo

Electronic Theses and Dissertations

Total Shoulder Arthroplasty (TSA) is a surgical procedure designed to improve joint functionality by replacing the articulation between the humeral head and the glenoid fossa. Anatomic Total Shoulder Arthroplasty (aTSA) and Reverse Total Shoulder Arthroplasty (rTSA) are two types of replacement surgery to relieve pain and restore function of the shoulder. The overall goal of this study was to evaluate the effects of variation of certain patient and implant alignment parameters that may influence long-term outcomes of these surgical procedures, including kinematics, joint loads and contact mechanics. Computational models of six TSA subjects, three aTSA and three rTSA, were created …

Exploring Collective Impact: A Developmental Program Evaluation Of A College Access Program, Diana C. Zakhem

Electronic Theses and Dissertations

The Partnership was established in 2015 when the Arbor Glen School District, Brook Heights Community College, and Remarkable Outcomes rallied around their common priorities of increasing college matriculation rates in their community. The Partnership created programming that promotes the preparation and transition of students into postsecondary education and the completion of a postsecondary credential. The COVID-19 global pandemic directly impacted The Partnership, including the loss of grant funding, changes in data reporting systems, changes in the delivery method of its services to students, and significant staff turnover. The combination of these factors caused The Partnership’s organizational structure, measurement systems, activities, …

Linguistic Features Of Metaphor, Metonymy And Narrative Gap In “The Yellow Wallpaper:” A Literary Analysis, Sherry Kaye Ms.

Electronic Theses and Dissertations

In 1890, Charlotte Perkins Gilman wrote a piece of fiction that reflected her personal experience for treatment of nervous exhaustion. The story she developed created controversy and comment after it was published and, years later, agitation among feminists who found allegories of truth in its narrative. This thesis explores the use of linguistic features employed by Gilman to establish cognitive connections between physical structures and social institutions, such as marriage and domesticity, that confine women within contractual obligations. Gilman’s use of extended metaphor challenges conventional conceptions of the home, inanimate objects, and institutional authority and her use of metonymy extrapolates …

Understanding The Role Of Sabp2-Interacting Protein (Sip) 428: An Nad+-Dependent Deacetylase Enzyme In Abiotic Stress Signaling Of Nicotiana Tabacum, Mariam Onabanjo

Electronic Theses and Dissertations

Abiotic stresses are constantly rising and pose a very high risk to global agricultural productivity and food security. Some plants have evolved several innate pathways for defense against these stresses. Hence, understanding stress signaling pathways can help develop crop plants with higher stress tolerance. The salicylic acid-mediated signaling pathway is important in plants experiencing biotic and abiotic stresses. In previous studies, SABP2-Interacting Protein (SIP-428) has been shown to be a negative regular of plant growth under abiotic stress. This study aimed to investigate the roles of SIP-428 in the ROS signaling of tobacco plants. We investigated transgenic RNAi-silenced lines of …

Learning Mindset Dimensions And Completion Status Of Tennessee Community College Students, Donna Sue M. Shellman

Electronic Theses and Dissertations

The purpose of this nonexperimental, quantitative study was to analyze relationships between three learning mindset dimensions (growth mindset; purpose and value; and sense of belonging) to retention and persistence to graduation among first-time, full-time Tennessee community college student graduates and nongraduates who attended one of 13 institutions in Fall 2019. In addition to comparing Tennessee community college graduates and nongraduates’ learning mindset dimensions, I analyzed student subgroups to explore those dimensions with regard to gender and race. Additional analyses included correlations between students’ growth mindset scores; purpose and value scores; and social belonging scores.

Analyses included Tennessee Board of Regents’ …

Investigation Of The Protein Components In A Periplasmic Mechanism Regulating Bacterial Morphology, Alexandra Pulliam

Electronic Theses and Dissertations

Salmonella is a leading bacterial cause of foodborne illness worldwide. During a previous study investigating the enzymes responsible for regulating cyclic-di-GMP concentrations, a mutant in the cyclic-di-GMP-specific phosphodiesterase STM3615 was identified that displayed a phenotype characterized by decreased survival on agar plates and a shorter bacterium length. I was able to determine that the periplasmic domain of STM3615 was responsible for this phenotype, not the enzymatic phosphodiesterase domain. Based upon a bioinformatic analysis of the protein, I then hypothesized that the periplasmic domain of STM3615 was interacting with a periplasmic protein to give rise to this phenotype. To identify this …

A Low Cost, Compact Electrochemical Analyzer Based On An Open-Source Microcontroller, Michael Kofi Darko Addo

Electronic Theses and Dissertations

Compared to other instruments for chemical analyses, electrochemical analyzers are relatively simple, inexpensive, easy to miniaturize and require little-to-no maintenance. However, like all commercially available instruments, commercial electrochemical analyzers like potentiostats primarily operate as black boxes with manufacturers providing little or no information about internal circuitry and programming. This practice can limit a researcher’s ability to develop new techniques or adapt an instrument for applications outside its typical use. In contrast, creators of open-source instruments release all the necessary information for reproduction of the hardware and software – minimizing such barriers to innovation in chemical analyses. Here, we report a …

Extraction, Purification, And Characterization Of Potential Bioactive Compounds Produced By Janthinobacterium Lividum Tajx1901, Andy Elorm Agbakpo

Electronic Theses and Dissertations

Underexplored environments such as soil samples continue to be an untapped source of bacterial strains with great potential to produce secondary metabolites for medicinal applications. As a result, these microorganisms represent a broad and yet unknown reservoir of new strains capable of producing these novel compounds. The current research primarily seeks to perform the isolation, purification, and characterization of secondary metabolites from a soil bacterium (Janthinobacterium lividum TAJX1901). The isolated soil bacterium was successfully cultured on rich media agar plates, followed by extraction using methanol and chloroform. The purification methods utilized include flash column chromatography, preparative thin-layer chromatography, and …

Development Of A Comprehensive Staff Development Program About Outpatient Diabetes Clinic Care For Patients With Type 1 And Type 2 Diabetes Mellitus, Cynthia G. Sanders

Electronic Theses and Dissertations

The purpose of this DNP project was to evaluate if focused staff education about the many aspects of outpatient diabetes care has the potential to increase knowledge and impact attitudes about diabetes in staff providing care to patients with type 1 and type 2 diabetes mellitus. Diabetes is a disease with wide ranging implications, in terms of cost, consumer health, and quality of life, for populations worldwide, including the United States. It is critical that staff who participate in the care of patients with diabetes mellitus have a role-specific educational foundation to support their contribution to patient care. The researcher …

Effective Leader Development Within A Church-Planting Organization For A Changing And Chaotic World, Jeremy Davis

Electronic Theses and Dissertations

A challenge in cross-cultural church planting is developing leaders. Cross-cultural church-planting organizations like Latin American Mission (LAM; pseudonym) that lack a leadership development strategy struggle to form lasting leaders, sending missionaries with Biblical training but not leader development training. Additionally, developing leaders in a volatile, uncertain, complex, and ambiguous (VUCA) environment creates specific challenges that missionaries must address. The purpose of this qualitative, Delphi method study was to investigate the leadership development perceptions and experiences among existing LAM missionaries in the regions of Latin America (Colombia, Cuba, Mexico City, Peru, Brazil, and Ecuador) to provide suggestions for improving effective leadership …

An Investigation Into Machine Learning Techniques For Designing Dynamic Difficulty Agents In Real-Time Games, Ryan Adare Dunagan

Electronic Theses and Dissertations

Video games are an incredibly popular pastime enjoyed by people of all ages world wide. Many different kinds of games exist, but most games feature some elements of the player overcoming some challenge, usually through gameplay. These challenges are insurmountable for some people and may turn them off to video games as a pastime. Games can be made more accessible to players of little skill and/or experience through the use of Dynamic Difficulty Adjustment (DDA) systems that adjust the difficulty of the game in response to the player’s performance. This research seeks to establish the effectiveness of machine learning techniques …

Fully Coupled Fluid Structure Interaction Simulation Of Bioprosthetic Heart Valves: A Numerical And Experimental Analysis, Masod Sadipour

Electronic Theses and Dissertations

Aortic stenosis impacts approximately 7% of the global population. In the past decade, the role of computational modeling has been becoming considerably important in the design of BHVs. To obtain reliable solutions in computational modeling, it is essential to consider accurate properties of bioprosthetic heart valves (BHVs), such as density and mechanical properties. Previous computational studies assumed (bovine pericardium) BP used in BHVs density was comparable to water or blood. Yet, BP is subjected to multiple treatments like fixation and anti-calcification. In Chapter 2, I measured BP density and its effect on BHV leaflet stress and strain. In the second …