Digital Commons Network^™

The Influence Of Pornography Consumption, Religiosity, And Family Sexual Communication On Emerging Adults' Engagement In Hookup Culture In The United States, Angie Powels Horner

Dissertations

Purpose

The primary purpose of the current research was to understand the influence of considerable social-cultural factors, including pornography consumption, religiosity, and family sexual communication, on the sexual values and behaviors of the emerging adult population. Particularly, how pornography consumption, religiosity, and family sexual communication influence emerging adult engagement in hookup culture was examined.

Method

Participants completed several surveys, which measured participants’ pornography consumption, personal religiosity, family sexual communication, and engagement in hookup culture. A path analysis model was used to analyze the relationship between the proposed variables.

Results

The path analysis model indicated that the initial model was a …

Islam, Christianity, Traditional Religions And Power Politics In Northern Nigeria Since Pre-Islamic Period, Emmanuel M. Abar

Dissertations

Problem

Currently in Northern Nigeria, religious interaction among the three major religious traditions, Islam, Christianity, and African Traditional Religion, is marred by violent religious conflicts. Also, competing concepts of religious legitimacy, which appeal to the historical heritage of Nigeria, are often used to validate and justify the violation of religious freedom. Does the current state of religious interaction among the various religious groups reflect the true heritage of religious interaction in Northern Nigeria? Or is it possible that the history of the interaction between African Traditional Religions, Islam, and Christianity in the past might actually be a heritage that points …

School Principal's Leadership Style And Teacher's Self-Efficacy In High And Low Achieving Schools In Chikankata, Zambia, Pardon Mwansa

Dissertations

Problem and Purpose

Much research has been done in past years on the topic of student achievement, with most of those studies focusing on factors that contribute to student achievement. Little, or no research has been done, especially in the country of Zambia, that has focused on the relationship between leadership style, teacher self-efficacy, and the extent to which these constructs impact student achievement. This study explored the school principals' leadership style, teacher self-efficacy, and the extent to which these factors contribute to student achievement in Chikankata District, Zambia. The Ministry of Education in Zambia and other educators, especially those …

Adventist Healthcare: A Qualitative Study Of 19th Century Founding Governing Principles In 21st Century Adventist Hospitals, Cesiah Yareth Pimentel Melendez

Dissertations

Problem and Purpose

Founding values and principles can help organizations stay focused on fulfilling their mission. This is especially true in faith-based organizations that seek to continue their founding principles as a governing commitment to their core identity. This study identified Adventist healthcare founding principles in Ellen G. White's early health visions and explored how Adventist healthcare leaders perceived these principles as governing principles applied to current Adventist healthcare practices.

Conceptual Framework and Research Design

Two metaphors and three areas of literature review guided my approach of this qualitative study of Adventist healthcare founding principles. My first metaphor of DNA …

Journey With Autism: Successful Educational And Social Interventions From A Single Case Study, Kwame M. De Jonge-Moore

Dissertations

Problem

Statistics indicate that Autism Spectrum Disorder (ASD) is on the increase in America and worldwide (Xu, Strathearn, Liu, & Bao, 2018; Baio et al., 2018). Autism spectrum disorder can impair an individual’s ability to engage in neurotypical behavior, which has the potential to increase their vulnerability to being shunned and bullied. This makes autism a major societal concern with significant costs to the individual, their family, private/public health insurance, state financial aid programs, and to the nation. This present study was undertaken to determine, in the opinions of those connected to the case, whether the interventions engaged in this …

The Relationship Between Combat Experience, Veteran Pathology And The Pathology Of Their Intimate Partners: What Factors Predict The Pathology Of Veterans And Their Intimate Partners, Edwin A. Brennan

Dissertations

Problem Statement

Military members and their family members who are part of the Global War on Terrorism have experienced deployments and war for over sixteen years and with the resulting toll on both the veteran and their intimate partner. As a result, higher levels of pathology, such as PTSD, Anxiety, and Depression have been experienced by this population. While research has studied the effect of combat on military members, very little research has addressed the effects on family members. Further, no research that has been found by this researcher, has addressed the concept of resonating of pathology between the combat …

The Interplay Of Racial Identity Attitude And Religious Orientation On The Social Integration Experiences Of Black African College Students And African American College Students Attending Predominantly White Institutions In The United States, Christina Miattamengie Johnson

Dissertations

Problem

Not much attention has been devoted to the academic experiences of Black African college students, the latter being typically categorized with those of African Americans (Kim, 2014). While research has effectively documented the social challenges that African American college students experience at (Predominantly White Institutions (PWI). much less research has been conducted on the social experiences of subcategories within the Black population, specifically, Black Africans. Though researchers have speculated on the potential differences between the social integration experiences of Black Africans and African American college students as these relate to religious orientation and racial identity attitude, no empirical studies …

Women's Decision-Making For Subsequent Pregnancy After A Cesarean Delivery, Melinda Dixon

Dissertations

The purpose of this study is to generate a theory of the decision making process for women as they choose a birth option after a previous Cesarean delivery. The research method of choice when little is known about the phenomena is qualitative research. A qualitative approach was used to generate a substantive theory of decision making for women deciding subsequent pregnancy birth mode after a previous Cesarean delivery. The classical grounded theory methodology including sampling plan, recruitment, data collection and analysis outlined in Glaser and Strauss (1967) guided this study. Twelve study participants with a history of one previous Cesarean …

Membrane Microdomains As Platforms For Extra-Cellular Fusions, Michael Hantak

Dissertations

Life requires biological membranes. Membrane-enclosed compartments separate and unite through dynamic fission and fusion reactions. These are catalyzed processes that are central in organismal biogenesis. This dissertation focuses on extracellular membrane fusions, which are central to several processes. (1) Enveloped viruses enter cells through membrane fusions. (2) Extracellular vesicles (EVs) also deliver molecules into cells through membrane fusions. (3) Entire cells also fuse together, generating fertilized zygotes, skeletal muscles, and giant cell macrophages.Mechanisms of extracellular membrane fusion are poorly understood. This dissertation aimed to further define these mechanisms. We focused on regulatory cofactors, including tetraspanins, transmembrane proteins that cluster into …

Determination Of Transforming Growth Factor-Β Signaling Targets In Activated T Cells, Ramiah Jacks

Dissertations

T lymphocytes are a critical component of the adaptive immune system and their responses in pathogenic and steady state conditions require strict regulation. One mechanism involved in this regulation is Transforming Growth Factor-β (TGF-β) signaling. TGF-β can act on activated T cells to facilitate the differentiation of TGF-β dependent T helper subsets or the suppression of T cell activation and proliferation. However, the molecular mechanism(s) by which TGF-β signaling controls T cell differentiation vs T cell suppression remain poorly understood.TGF-β signaling is propagated by initially binding to the TGF-β type II receptor, which subsequently activates TGF-β type I receptor (TGF-βRI) …

The Effectiveness Of An Ambulatory Care Health System Redesign On Patient Engagement, Healthcare Utilization, And Clinical Indicators, Nancy Johansen Madsen

Dissertations

Diabetes is a lifelong debilitating and deadly chronic disease affecting nearly one out of every eleven Americans. This public health problem costs $245 billion annually in the United States. Long term research trials have shown that diabetes complications can be prevented with good glycemic control, but it is difficult for patients to maintain control without much support from their healthcare team. U.S. healthcare remains fragmented. With the passage of the Affordable Care Act, there are opportunities to redesign health care delivery to minimize fragmentation and improve patient outcomes. The aim of this study is to determine if a redesigned care …

Predicting Decision-Making In Relation To Health-Risk Behavior In College Freshmen, Anne Bijumon Luckose

Dissertations

Method/Measurements: A cross-sectional correlational design explored the relationships between decision-making, health-risk behaviors and social support systems in college freshmen. The aims of the study were: 1) to explore the relationship between decision-making and health-risk behaviors among college freshmen; 2) to determine whether or not family support and social support jointly predict decision-making among college freshmen; and 3) to ascertain whether or not the effect of family support on decision-making is different for male and female college freshmen. Measurement was collected at one time-point and participants in this study completed on-line questionnaires through a web-based online survey software application with measures …

Protection From Staphylococcus Aureus Bloodstream Infection By Probiotic Exopolysaccharide, Wonbeom Paik

Dissertations

Staphylococcus aureus is known to cause severe systemic infection with high mortality rates. Antibiotics are the only approved therapy for patients, but the widespread prevalence of antibiotic resistant strains limits treatment efficacy, and many patients succumb to the disease. Many probiotic agents are commercially available, but the mechanisms by which they benefit are not known. Understanding these mechanisms will help develop novel therapeutics that can improve healthcare, including systemic infections by S. aureus. Bacillus subtilis is a probiotic bacterium that produces an exopolysaccharide (EPS) that induces anti inflammatory macrophages (MΦ). We tested if EPS could be used for systemic S. …

Prevalence And Potential Buffers Of Intergenerational Trauma In African American And Latinx Parent-Child Dyads, Kandace Thomas

Dissertations

Buffering intergenerational trauma (IGT) is of great interest to researchers, policy makers and interventionists working to reduce the experience of trauma across generations within the family. IGT has been well studied among families who experienced the Holocaust and there is emerging IGT literature describing the impact of historical events and societal-based adverse experiences across generations. This study expanded upon the IGT literature by exploring and confirming the existence of IGT in a sample of primarily low-income African American and Latinx parents and their 6-year-old children; exploring pre-existing strengths and qualities in parents, such as Contemplative Self-Care (CSC) and Parent Self-Efficacy …

Addressing The School-To-Prison Pipeline Through Critical Self Reflection: A Self-Study Of Courageous And Transformative Leadership, Ernest D. Williams

Dissertations

Research reveals that zero-tolerance policies lead to school suspensions of a disproportionate number of African American students in urban areas (Center for Civil [CCRR], 2015). Suspensions increase student failure rates and dropout likelihood and reduce the ability to graduate on time (Skiba, Arrendondo, & Williams, 2014). Studies have also shown that African American students are suspended three times more than their White American peers and two times more than their Latino American peers (CCRR, 2015). This has impelled federal and local government agencies, community organizations, and educators to question the effectiveness of punitive discipline policies that have marginalized black and …

An Action Research Project Addressing The Perception Of Strengths And Barriers To Communication At The Onset Of The Mtss Initiative Within The High School Setting, Taliah Ziyad-Nau

Dissertations

The issue that this study addresses is the communication of the MTSS initiative within the high school setting. The MTSS process will allow access to evidence based intervention programs for student social, emotional support. The study consists of parallel interview protocols to understand the perceptions of the strengths and weaknesses in the communication of how to access the student support services. The results of interviewing a sample of staff and parents to understand how to improve access to student social, emotional supports within the high school setting indicated that the strength of the MTSS initiative related to the availability of …

Yczr, A New Case Of Plp-Dependent Mocr/Gabr Type Transcription Regulator In Klebsiella Pneumonia, Yuanzhang Zheng

Dissertations

Increasing number of genes encoding PLP-dependent transcription regulators, MocR/GabR type regulators, have been identified in various bacterial genomes. However, only a handful of them, including MocR, PdxR and GabR have been studied experimentally. They control different aspects of the bacterial metabolism. Only GabR has reported crystallographic structures. MocR/GabR regulators possess a chimeric structure consisted of a WHTH DNA binding domain and an Aminotransferase-like regulation domain, which can bind PLP as an effector in transcription regulation. Such a chimeric construct presents an interesting case in molecular evolution. The regulation domains of All MocR/GabR type regulators loss their catalytic capacity during evolution …

Comparing Procedural Content Generation Algorithms For Creating Levels In Video Games, Zina Monaghan

Dissertations

Procedural Content Generation (PCG) is used frequently in games to increase replayability by introducing variety to playghrough of a game and reduce development time by allowing complex game worlds to be developed by a smaller team over a more limited amount of time.

An Evaluation Of The Information Security Awareness Of University Students, Alan Pike

Dissertations

Between January 2017 and March 2018, it is estimated that more than 1.9 billion personal and sensitive data records were compromised online. The average cost of a data breach in 2018 was reported to be in the region of US$3.62 million. These figures alone highlight the need for computer users to have a high level of information security awareness (ISA). This research was conducted to establish the ISA of students in a university. There were three aspects to this piece of research. The first was to review and analyse the security habits of students in terms of their own personal …

“The Zero To Three Years Are So Important” An Exploration Of The Needs Of Young Children In Ecec Settings From A Policy And Practice Perspective., Rosemary Brien

Dissertations

A strong body of evidence demonstrates that young children under the age of three are experiencing a critical period in their development which impacts long term mental and physical health. Responsive, secure and positive relationships between young children and their caregivers is integral to healthy social and emotional development.The principle aim of this study is to explore how the needs of children under the age of three are perceived and addressed in Irish early childhood education and care settings from a practice and policy perspective.A qualitative research approach was adopted utilising semi-structured interviews with managers of full day care settings …

An Exploration Of Managers’ Perspectives On Their Role In Managing Community Early Years Services : Influences And Insights, Jessica Lee

Dissertations

This exploration into theperspectives of managers of community Early Years services stems from the absence of a requirement of a qualification for supernumerary managers in Early Years services in Ireland and the resulting ambiguity of definedfunctions of such managers and contextually specific requirements. The aim of the study is to gain a deep insight into the perspectives ofthe participants on their roles in leading and managing their services. The objectives are to understand what internal and external factors have shaped their roles, to locate the dichotomies and harmonies between what iscontextuallyrequired of managersand what the true reality of a manager’s …

Analysis Of Acoustic Emission Signals In Aluminum And Composite Structures, Duy Quang Tran

Dissertations

Acoustic emission signal in aluminum plates and composite specimens are examined in this dissertation. The first part of the dissertation examines the symmetric lamb wave modes generated by the spontaneous appearance of a central microcrack in an aluminum plate. The detected acoustic emission amplitude of these waves with radial and angular position of the sensing location was analyzed using finite element analysis. An important aspect of this study is the detailed characterization of the shear horizontal mode of the Lamb wave that is generated by simulated crack growth. This analysis indicates that the amplitude of the shear horizontal mode remains …

The Cooperative Effects Of Channel Length-Bias, Width Asymmetry, Gradient Steepness, And Contact-Guidance On Fibroblasts’ Directional Decision Making, Quang Long Pham

Dissertations

Cell migration in complex micro-environments, that are similar to tissue pores, is important for predicting locations of tissue nucleation and optimizing scaffold architectures. Firstly, how fibroblast cells - relevant to tissue engineering, affect each other’s directional decisions when encountered with a bifurcation of different channel lengths was investigated. It was found that cell sequence and cell mitosis influence the directional choices that the cells made while chemotaxing. Specifically, the fibroblasts chose to alternate between two possible paths - one longer and the other shorter - at a bifurcation. This finding was counter-intuitive given that the shorter path had a steeper …

Methods To Improve The Remediation Of Polycyclic Aromatic Hydrocarbons (Pahs) In Aerobic And Anaerobic Environments, Brian Wartell

Dissertations

Oil spills occur regularly in terrestrial environments and crude oil can contain many compounds that are highly resistant to degradation. Among these compounds are high levels of polycyclic aromatic hydrocarbons (PAHs) which are not only toxic but can also be carcinogenic and/or mutagenic. The first chapter of this dissertation includes an extensive review chapter on the variables affecting the anaerobic degradation of hydrocarbons, with a particular focus on PAHs. Electron acceptors, electron donors, temperature, salinity, pH all play key roles in determining the possibility effective of effective degradation occurring. Thus, by addressing solutions, such as biostimulation, improving environmental variables for …

Fwer Controlling Procedures In Simultaneous And Selective Inference, Li Yu

Dissertations

With increasing complexity of research objectives in clinical trials, a variety of relatively complex and less intuitive multiple testing procedures (MTPs) have been developed and applied in clinical data analysis. In order to make testing strategies more explicit and intuitive to communicate with non-statisticians, several flexible and powerful graphical approaches have recently been introduced in the literature for developing and visualizing newer MTPs. Nevertheless, some theoretical as well as methodological issues still remain to be fully addressed. This dissertation addresses several important issues arising in graphical approaches and related selective inference problems. It consists of three parts.

In the first …

Functionalized Carbon Nanotubes In Hydrophobic Drug Delivery, Kun Chen

Dissertations

The direct incorporation of carboxylated carbon nanotubes (f-CNTs) into hydrophobic drug particles during their formation via anti-solvent precipitation is presented. The approach is tested using two drugs namely antifungal agent Griseofulvin (GF) and antibiotic Sulfamethoxazole (SMZ) that have very different aqueous solubility. It is observed that the f-CNTs dispersed in the water serve as nucleating sites for crystallization and are readily incorporated into the drug particles without altering crystal structure or other properties. The results show that the hydrophilic f-CNTs dramatically enhance dissolution rate for both drugs. The increased degree of functionalization leads to higher hydrophilicity and therefore faster dissolution …

Cardiac Regenerative Medicine: Insights From Healthy And Diseased Engineered Tissues, Pamela Grace Hitscherich

Dissertations

Cardiovascular disease remains the leading cause of mortality in the United States. Current tissue engineering approaches have fallen short of promoting fully functional cardiovascular cells and the post-myocardial infarction microenvironment is still not well understood. These gaps in knowledge are addressed in this dissertation through the development of in vitro engineered cardiac tissues using electroactive materials to enhance the differentiation of pluripotent stem cell derived cardiomyocytes and through the development of in vitro myocardial inflammation models dedicated to understanding cardiomyocytes and macrophages interactions.

Specifically, piezoelectric poly (vinylidene fluoride-trifluoroethylene) (PVDF-TrFE) supports the attachment and survival of mouse embryonic stem cell derived …

Overcoming Conventional Modeling Limitations Using Image- Driven Lattice-Boltzmann Method Simulations For Biophysical Applications, Olufemi E. Kadri

Dissertations

The challenges involved in modeling biological systems are significant and push the boundaries of conventional modeling. This is because biological systems are distinctly complex, and their emergent properties are results of the interplay of numerous components/processes. Unfortunately, conventional modeling approaches are often limited by their inability to capture all these complexities. By using in vivo data derived from biomedical imaging, image-based modeling is able to overcome this limitation.

In this work, a combination of imaging data with the Lattice-Boltzmann Method for computational fluid dynamics (CFD) is applied to tissue engineering and thrombogenesis. Using this approach, some of the unanswered questions …

Perceptions Of Teachers Regarding Development Of Positive Student-Teacher Relationships In Exemplar Schools Using Cstps, Sneha Sharma

Dissertations

Purpose: The purpose of this phenomenological, qualitative study was to describe and explore how teachers in Partnership for 21st Century Learning (P21) exemplar schools developed positive student-teacher relationships using the 6 domains of the California Standards of the Teaching Profession (CSTPs).

Methodology: This study included 12 teachers from 2 high schools in California that were recognized as exemplary by P21. Each school principal chose 6 teachers by utilizing a list of specific criteria, based on the CSTPs, that was provided by the researcher. The researcher also conducted interviews of all 12 teachers, completed artifact analysis, and conducted observations of teachers. …

A Mobile Phone Hiv Medication Adherence Intervention: Care4today Mobile Health Manager, C. Andrew Martin

Dissertations

This paper presents the findings of a qualitative study designed to describe the experience of HIV medication adherence using a mobile phone application. For the purpose of this qualitative study, nine semi-structured focus group discussions were conducted over a three-month period at an AIDS service organization in Central Texas. The data were analyzed following the principles of thematic analysis.