Digital Commons Network^™

The Underrepresentation Of Women In Senior Leadership Positions Within The Healthcare Industry, Gloria I. Choquette

Doctoral Dissertations and Projects

In today’s business world the importance of bias, stereotyping, and prejudice, needs to be taken into account, as it leads to the underrepresentation of women in senior leadership positions. A crucial leadership gap exists in the current healthcare system as theories, cases, and models have influenced the strategies used in the healthcare industry. The purpose of this qualitative case study is to understand the causes behind the underrepresentation of women in senior leadership positions within the healthcare industry in Winter Haven, Florida when compared to population demographics resulting in the organizations inability to leverage their skill-sets. Through participants responses the …

A Study Of Support For The Bereaved In The Local Congregation, Ngoy Nadine Ilunga

Doctoral Dissertations and Projects

The bereaved often face the ongoing challenges of grief with little support from the Church. This study aimed to resource the Church with practical methodologies to help congregants cope with grief. The study examined the troubling issues the bereaved experience after the death of a loved one. Survey data was collected from ten United Methodist members and had lost an immediate family member within the past five years. The measure consisted of interviews and questionnaires. An email and a verbal announcement during church worship service built the sample. Findings reveal that approximately 90% of participants experienced grief and emotional effects …

Financial Globalization And Its Effects On Developing Countries In Latin America And The Caribbean, Jean Paul Francois

Doctoral Dissertations and Projects

Financial globalization is characterized as an aggregate concept designated to expand global connections through cross-border financial flows. This quantitative correlational study aimed to examine the relationship between instability from financial globalization and lack of profitability within financial institutions in countries Latin America and the Caribbean. The problem addressed was that instability from financial globalization resulted in the lack of profitability in developing countries in Latin America and the Caribbean. The study extended the research literature to analyze the effect of financial globalization on economic instability and financial development and found a statistically significant relationship between financial globalization and profitability, economic …

What Motivates Them To Graduate? A Phenomenological Study Of The Experiences Of Students With Disabilities Who Earn A High School Diploma In Title I Schools, Heather Steelman

Doctoral Dissertations and Projects

The purpose of this transcendental phenomenological study was to describe the lived experiences of students with disabilities in Title I schools that kept them motivated to earn a high school diploma. The central and sub questions explored factors associated with the attainment or fulfillment of basic psychological needs of competence, relatedness, and autonomy, as well as intrinsic and extrinsic motivational factors. Title One high school graduates with disabilities, or students who had an individualized education plan (IEP) when they entered high school and continued to have an IEP through graduation, were identified through snowball sampling and participated in this study …

Copd Discharge Care Bundles: An Integrative Review, Leigh Goodwin Wingo

Doctoral Dissertations and Projects

Chronic obstructive pulmonary disease (COPD) is one of the leading causes of death in the United States. It is the reason for millions of emergency room and hospitalizations, increasing healthcare costs, morbidity, and mortality. Many studies have evaluated the effects of COPD patient care bundles to help reduce the risk of 30-60-90-day readmissions post discharge from the hospital for COPD exacerbation. A comprehensive search was conducted on articles dated between February 2015 to January 2020 in the MEDLINE, EMBASE, and CINAHL, OVID, internet search, and Liberty University online library. This review included articles based on the effectiveness of COPD discharge …

"And Some, I Assume, Are Good People:" A Closer Look At Hispanic Immigration And The Code Of The Street, Nicole Cebak

Open Access Theses & Dissertations

Although research shows that increasing neighborhood levels of immigration tend to be associated with lower crime, little attention has been paid to why this is the case-- in essence what variables might help account for, or explain, these findings. Thus, the focus of this study is to explore a cultural explanation, specifically whether adherence to the code of the street helps to explain this relationship. Further, this study is looking to find the differences between immigrant generations as well as recent and established immigrants as it pertains to adherence to the code of the street. Using a random sample of …

In Vitro Investigation Of Tumor Selective Piperidones As Therapeutic Agents Against Leukemia Cancer Cells, Lisett Contreras

Open Access Theses & Dissertations

Cancer is a continuous global health issue. It is the second leading cause of death behind heart disease. Disparities across the emergence of cancer and resulting fatalities raise the importance of researching the disease. Treatments are available for certain types of cancers. However, these are typically accompanied by residual problems including side effects and the possibility for relapse. Some treatments attack all cells, leading to unwarranted side effects that make the possibility of living a comfortable life nearly impossible. Other treatments are specific to certain genetic alterations, making them only useful for a small percentage of patients. Not one treatment …

Effects Of Coated/Uncoated Copper-Based Nanoparticles And Compounds On Rice (Oryza Sativa) And Soybean (Glycine Max) Plants, Chaoyi Deng

Open Access Theses & Dissertations

Engineering nanoparticles (ENPs) have been widely used in industry due to their promising chemical, physical, electrical, magnetic, optical, and electronic properties. Copper-based ENPs are used as gas sensors, catalysts, semiconductors and agricultural products, among others. Because of their antifungal and antibacterial properties, they are used in agriculture as insecticides, herbicides and antifungal agents. Due to their mass production and use, ENPs are likely to be ubiquitous in our in the environment in the near future. In addition, metal nanoparticles are usually coated with organic compounds to enhance the properties of the nanoparticles. Previous studies have shown that copper-based ENPs can …

The Latinx Community, Anti-Black Racism And Forward- Looking Collective Moral Responsibility, Julisa Jazsmine Fernandez-Rivera

Open Access Theses & Dissertations

In the literature on collective responsibility, theorists have utilized different methods in order to argue collective responsibility can be attributed to collectives. Some theorists have referred to Strawsonâ??s account of participant reactive attitudes in order to support their claims that certain collectives can be the appropriate targets of reactive attitudes (2008). According to Strawson (2008), attributing reactive attitudes, such as guilt, praise, hurt feelings, obligation, etc. towards others and ourselves is what constitutes moral responsibility. Though Strawsonâ??s account only focuses on individual responsibility, theorists, such as Deborah Tollefsen and Kay Mathiesen, have extended his account to support their claims about …

Interval Constraint-Solving Strategies For Solving Dynamical Systems, Angel Fernando Garcia Contreras

Open Access Theses & Dissertations

There are abundant phenomena that humans can describe through mathematical models. Dynamical systems are one such type of model, describing the behavior of phenomena that change over time. For example, a scientist can measure and analyze an insect's wing parameters and movements to create a dynamical system of that behavior. We can then use this model in different applications, such as creating a nano vehicle with insect-like propulsion.

For many real life problems, there exist analytical solutions. These can represent a full description of the state of a dynamical system at any moment in continuous time. However, in most practical …

Determination Of Faculty And Staff Parking Permit Prices On University Campuses, Rodrigo Garcia

Open Access Theses & Dissertations

University campuses are the origins and destinations of a variety of trips generated by faculty, staff, students, and visitors. The vast number of trips that are attracted to university campuses result in parking congestion issues. In order to manage campus parking demand, universities establish Transportation and Parking Offices (TPO). This research has developed a two-stage procedure that can be used by TPOs as a tool for determining faculty and staff parking permit prices on university campuses. The first stage of the procedure is the determination of a single campus-wide base price (which may be regarded as the reference price or …

Tectonomagmatic Evolution Of Northwestern Mexico, And Applications Of Machine Learning In Economic Geology, Jose Antonio Garcia

Open Access Theses & Dissertations

The work presented here was conducted in two study areas: La Preciosa mining project (Chapters 1 and 2) and Ray Mine (Chapter 3). Chapter 1 of this dissertation contributes to the tectonomagmatic evolution of northwestern Mexico by focusing on the temporal changes in magma source(s) regions, magma generation processes, and tectonic implications. In this chapter, I provide thin section analyses, whole rock geochemistry, in-situ zircon U-Pb ages and Hf isotope compositions of subsurface lithologies from La Preciosa mining project; located in the northwestern corner of Mesa Central, Durango, Mexico. The newly acquired data identified five magmatic events. The first consists …

Synthesis And Characterization Of Tin (Sn) Incorporated Ga2o3, Guillermo Nicolas Gutierrez

Open Access Theses & Dissertations

In this work, we report on the synthesis, characterization of tin (Sn) incorporated gallium oxide Ga2O3 compounds, also included in this work is the effect of tin concentration related to the optical and electrochemical properties. The Sn incorporation into Ga2O3 creates a significant reduction in the bandgap and causes a nonlinear optical activity as the concentration varies. Substantial investigation performed to the structure, phase, and morphology of the mixed compounds governed by the stoichiometry equation Ga2−2xSnxO3-ɗ indicates that the Sn incorporation from 0.00 ≤ x ≤ 0.30 has a significant effect on these properties. To synthesize the Ga-Sn-O compounds a …

Microstructure And Hardness Comparison Of Inconel 625 Alloy Of Various Additive Manufacturing Processes Following Heat Treatments, Ariel Gamon

Open Access Theses & Dissertations

This research study presents experimental examples of as-built microstructures and associated microindentation hardnesses (HV) for a variety of metal additive manufacturing (AM) methods for Inconel 625 alloy. Cold spray (CS), laser powder bed fusion (L-PBF), wire arc additive manufacturing (WAAM), electron beam directed energy deposition (EB-DED), laser hot wire (LHW), binder jetting (BJT), and laser power directed energy deposition (LP-DED), laser wire directed energy deposition (LW-DED) and electron beam melting (EBM) were among the techniques employed. Microstructures varied from impact-bonded, flattened grains containing microdendrites and dislocations with a microindentation hardness of HV 590 for cold spray to large, equiaxed grains …

Synthesis, Characterization, And Direct-Ink-Writing Of Syntactic Foams, Andrea Irigoyen

Open Access Theses & Dissertations

This project encompasses three different methods to fabricate syntactic foams using a PDMS matrix i.e., hollow spheres inclusion, pore generator leaching by solvent, and emulsion. The foam formation by using polysiloxane hollow spheres is done in a 3-step process. The first step is to create a core of polystyrene following a dispersion polymerization process. The goal for the size of the pore is to monodisperse and have an average diameter of 5-10 μm, so the polystyrene core must be as well within that range. After that, the cores are coated with a polysiloxane shell by following a polymerization by condensation …

Relationship Between Sustainability Determinant Variables For Usa, India, China During The Sustainability Awareness Years From An Energy Usage Perspective And Its Relation To Environmental Kuznets Curve: Analysis By Linear Regression, Krishnan Iyer

Open Access Theses & Dissertations

Sustainable development promotes economic growth alongside environmental quality preservation and minimizes greenhouse gas emissions .The Environmental Kuznets curve (EKC) shows that, as countries transition from low income to higher income levels of economic development it leads to a deterioration of the environment, but after a certain level of economic growth, environmental quality is preserved alongside economic growth to a good extent and makes the developmental model sustainable. In this research we perform Linear Regression to test the effect of sustainability determinant variables on Total greenhouse gas emissions and perform a comparative study of the test results on the world’s leading …

Rarified Water Vapor Deposition From Icy Lunar Regolith On An Engineered Cold Plate, Nathaniel Ian Jurado

Open Access Theses & Dissertations

This work presents the fundamental ice collection experiments conducted under rarefied flow regime to develop a high-capacity cryogenic heat pipe for ice recollection on the Moon’s surface. Preliminary ice collection experiments are conducted under cryogenic vacuum environment of 1.5 × 10-2 Torr and -60 °C. The characterization of water vapor sublimation rates from icy lunar regolith (JSC-1A) at various heating powers is established by utilizing a cryogenic thermal vacuum chamber (T-VAC). A custom-built engineered cold plate is designed, manufactured and tested at various degrees of subcooling and vapor sublimation rates. A thin film heater is embedded within the cold plate …

The Impact Of Verb Type On The Variability Of The Comp-Trace Effect, Haydee Martinez

Open Access Theses & Dissertations

The C-t effect has been extensively researched with regards to its variability, however, matrix verbs have not generally been taken into account. The present study investigates whether verbs believe, doubt, know, realize, say and think differ in the strength of the C-t effect they induce— exploring syntactic analyses, epistemicity and grammaticalization to possibly identify what characteristics of verbs dictate the strength of the C-t effect. Subjects (n=44) were asked to complete 1 of 2 Grammaticality Judgement Tasks (GJT), which asked them to rate the grammaticality of items which included matched items with that involving both subject extractions, constructions without extractions, …

Combination Of Nir Triggered Lanthanide Upconverting Nanoplatforms With Fullerene For Controlled Drug Release And Photo Cancer Therapy, Lei Ma

Open Access Theses & Dissertations

Photodynamic therapy (PDT) is an emerging, externally activatable, treatment modality for various diseases, especially for cancer therapy. Similar to radiotherapy, the mode of action with PDT involves the use of electromagnetic radiation to generate radical species in situ. However, PDT is a much milder approach for cancer treatment. Because of the unique physicochemical properties of fullerenes (such as C60), many potential biomedical applications, including PDT, became possible with them. As a main principle of PDT, the anticancer properties of various fullerene preparations usually result from their ability to generate cytotoxic reactive oxygen species (ROS), after photoexcitation. However, because of the …

Mechanical Properties And Microstructure Evolution Of Thermally Treated Laser Powder Bed Fusion Alsi10mg, Jorge Merino-Gomez

Open Access Theses & Dissertations

The optimization of mechanical properties with thermal postprocessing treatments was investigated in this study across a wide variety of variants. The relationship between heat treatments and the impacts on the mechanical properties and microstructure of printed materials is a crucial part of additive manufacturing. As a result, the current paper provides a comprehensive overview of postprocess heat treatments for Laser Powder Bed Fusion fabricated AlSi10Mg alloy, including stress relief anneals at 190 and 285 degrees Celsius for 2 hours, hot isostatic pressing at 515 degrees Celsius for 3 hours, hot isostatic pressing + T6 treatment for 6 hours, and final …

The Network Link Outlier Factor (Nlof) For Localizing Network Faults, Christopher Mendoza

Open Access Theses & Dissertations

This work presents the Network Link Outlier Factor (NLOF), a data analytics pipeline for network fault detection and localization solution that consists of four stages. In the first stage, flow record throughput values are clustered in two sub-stages: using Density-Based Spatial Clustering of Applications with Noise (DBSCAN) and then a novel domain-specific ThroughPut Cluster (TPCluster) technique. In the second stage, Flow Outlier Factor (FOF) scores are computed for each flow. In the third stage, flows are traced onto the network. Finally, in the fourth stage, each link is given a Network Link Outlier Factor (NLOF) score which is the ratio …

Structural And Stratigraphic History Of A Deformed Diapir Margin, Onion Creek Salt Diapir, Paradox Basin, Utah, David Lankford-Bravo

Open Access Theses & Dissertations

The Onion Creek Salt Diapir (OCSD) located in the northern Paradox Basin in Utah is a 0.6 km wide X 3.6 km long X 1.6 km tall salt diapir surrounded by variably deformed Paleozoic through Cenozoic strata. The area is a classic area for the study of deformation around salt diapirs. This study uses high-resolution GPS-enabled-tablet and 3D photogrammetric outcrop model-based field mapping, section measuring, thin section petrography, structural restorations, and newly developed 3D modelling workflows to document the styles, timing, nature, and distribution of deformation in strata surrounding the OCSD. Permian Cutler Group sediments on the northern margin of …

Evaluation Of Varying Graphene Oxides Through Their Physicochemical Characterizations On Erythrocytes, Hs27 Cells, Escherichia Coli And Staphylococcus Aureus Bacteria Cell Lines, To Assess Graphene Oxides Cytotoxicity., Miriam Montana

Open Access Theses & Dissertations

Research on the toxicity of Graphene Oxides (GO) has captivated interest in the field of material science, environmental sciences, and medicine for their avail significance in biomedical engineer applications either as integrates, enhancements, or in the making of medical devices. Moreover, there is still a lack of understanding as to what characteristics on GOs causes them to be cytotoxic at a cellular level. In our study we synthesized four different GOs by varying in both the method used for oxidation (Modified Hummer’s method & Improved Marcano-Tour’s method), and the precursor parent graphite, for a standardization approach to aid in the …

Examining The Effects Of Information And Communication Technologies In The Legal Representation Of Latin American Asylum Seekers, Victor M. Portillo Ochoa

Open Access Theses & Dissertations

The purpose of this thesis was to explore how legal defense nonprofit organizations (NPO) are using Information and Communication Technologies (ICT) to provide legal defense for asylum seekers and improve the conditions of immigrants at detention centers. In addition, this research explored the impact of ICTs on legal defense NPOs, bottlenecks, and security implications when supporting vulnerable communities. ICTs profoundly impacted the way we interact in a post-pandemic world, and it presents new challenges and possibilities for legal defense nonprofit organizations that are helping vulnerable communities. This study consists of staff and volunteers from different legal defense nonprofit organizations NPOs …

Transgenerational Differences Between Two Culturally Distinct Prairie Vole Populations, Richard Joaquin Ortiz

Open Access Theses & Dissertations

Culture can be described as a system of environmental beliefs, values, and social practices within one’s environment. This system is passed on from generation to generation and provides a basis for an individual’s behaviors and cognitive perceptions. Cultural neuroscience is an emerging field that intertwines domains of anthropology, psychology, neuroscience, and genetics to help understand the underlying processes, neural mechanisms and genomic factors that vary across cultures. Similar to humans, the socially monogamous prairie vole (Microtus ochrogaster) display populational differences in prosocial behavior and aggression based upon region-specific cultural upbringing and parental lineage. Prairie voles originating from Kansas (KS) display …

Small Satellite Development And Mission Design For Low Earth Orbit And Geostationary Transfer Orbit Missions, Ashiqur Rahman

Open Access Theses & Dissertations

Aerospace Center formerly known as cSETR at UTEP is a NASA funded center of excellence in aerospace and exploration, focusing on strategic capability development in propulsion and robotic lander, lunar surface exploration, and small spacecraft technologies. To support the center’s mission for space exploration and to demonstrate advancements in small satellite technologies, the Aerospace Center at The University of Texas at El Paso is on track to develop and launch several CubeSats in next few years. A CubeSat is a small satellite that has become popular in recent years due to their low cost, low complexity and short development timeline. …

Structural Impacts Of Super Heavy Load (Shl) Vehicles On Transportation Infrastructure, Ali Morovatdar

Open Access Theses & Dissertations

Operation of non-conventional Super Heavy Load (SHL) vehicles is an ongoing challenge for transportation stakeholders and the traveling public across the nation. Despite facilitating the movement of heavy, large, and non-divisible loads, passages of such vehicles with complex loading configurations that typically weigh several folds of the permissible weight limits set forth by regulatory agencies have been adversely affecting the structural integrity of pavement facilities. This translates into accelerated damage of pavement structures, which in turn poses safety concerns for users of the transportation facilities. Accurate quantification of such detrimental impacts is the precursor to preserve the existing transportation facilities. …

Building Energy Model Simulation Of A Single Building In Comparison To A Broader Building Stock, Paola Michelle Santillano

Open Access Theses & Dissertations

Residential facilities and buildings are the largest consumers of energy in the United States. More than 76% of electricity and more than 40% of all energy consumption comes from providing a comfortable and healthy environment in buildings. Prioritizing building energy technology goals for performance and cost can significantly reduce energy use within the next ten years despite a substantial forecasted population increase. Retrofitting existing buildings and improving future construction has the potential to realize cost savings and environmental benefits over time. A key component to realizing these benefits is regional building energy modeling. One of the challenges to widespread building …

Comprehensive Study Of Human Pathogenic Trypanosomatids: From Chemotherapies To Disease Ecology, Felipe Rodriguez

Open Access Theses & Dissertations

The vector-borne diseases Leishmaniasis and Chagas disease, caused by the kinetoplastid parasites Leishmania spp. and Trypanosoma cruzi respectively, are among the most important parasitic diseases in the group of neglected tropical diseases. Even though the two diseases are endemic to the Americas, they affect millions of people worldwide. Leishmaniasis and Chagas disease cause a great array of symptoms and some of them can be fatal if left undiagnosed and untreated. Current treatment regimens are becoming less effective, vaccines are still not available, and diagnosis needs to be improved. Vector control has been responsible for a decrease of diseases in endemic …

Collige Et Impera: The United States Reengagement In Libya, Marco Schinella

Open Access Theses & Dissertations

President Biden's "America is back" pledge holds the potential to be put to the test with the ongoing crisis in Libya. The internationalization of the post-Ghaddafi Libyan breakdown, strained by great-power competition (GPC) dynamics, poses nonnegligible threats to the United States (US) national security that extends beyond Libya per se. Reframing the conflict from yet another Middle East and North Africa (MENA) conflict to an urgent multilateral Mediterranean security challenge will help elevate the country's profile on the global stage. This thesis outlines a qualitative, within-case study analysis of the ongoing Libyan crisis from the perspective of US national security …