Digital Commons Network^™

Effects Of Membrane Components On The Oligomerization Of Amyloid-Β (Aβ) In Alzheimer Disease, Jhinuk Saha

Dissertations

Deposition of extracellular proteinaceous plaques of amyloid-β (Aβ) is one of the major hallmarks of Alzheimer disease (AD). Although, insoluble high molecular fibrils of Aβ are the main constituents of the senile plaques in AD, low molecular weight soluble Aβ oligomers have emerged as the key toxic species involved in memory impairment and neuronal cell death in AD. The process for generation of oligomers can be highly diverse and can involve homotypic interactions of Aβ as well as heterotypic interaction of Aβ with other macromolecules. Previously, the generation of Aβ oligomers with distinct biochemical and biophysical characteristics catalyzed non-esterified fatty …

An Exploration Of The Relationship Of Cue Identification And Problem Framing In Nurses' Clinical Decision Making, Kereen F. Mullenbach

Dissertations

This qualitative descriptive study was designed to explore the relationship of cue identification and problem framing as part of the problem solving and decision making of medical surgical nurses as they thought-aloud while they performed an assessment of a human patient simulator. The most important aspect of problem solving is the identification of the correct problem. Nurses are expected to identify problems in complex, uncertain, unstable, and time-limited situations. Few studies have been conducted using a Human Patient Simulator to create a realistic situation while controlling for uniformity and consistency. The conceptual framework for the study was Information Processing Theory …

Factors Affecting Self-Reported Physical Activity In Children Ages 10-12, Shirley Sherrick-Escamilla

Dissertations

This study examined the relationship between the current level of physical activity in older school-age children and their self-perception of what promotes and hinders their participation in physical activity. The study also addresses how well Pender's Health Promotion Model (HPM) predicted older school-age children's current level of physical activity.

Organizational Citizenship Behaviors, Self Efficacy, Job Satisfaction, And Organizational Commitment Of Science And Math Teachers In Alabama, Andrew N. Wood

Dissertations

This study investigated the correlations between occupational citizenship behaviors, self-efficacy, job satisfaction, and organizational commitment of math and science teachers. The purpose was to discern how these variables interacted to determine how best to support these teachers so they may be more likely to stay teaching in their organizations until retirement. The researcher surveyed math and science teachers within the State of Alabama. There were 314 math and science teachers who completed the survey instrument. Six hypotheses were evaluated to determine if all the variables had positive relationships with each other. From the correlation analysis, used for hypothesis testing, total …

A Delphi Study To Determine The Organizational Supports Necessary For Middle School Counselors To Be Successful And Positively Influence Student Outcomes, Debbie Monroe

Dissertations

Purpose: The purpose of this Delphi study is to identify, from the perspective of expert counselors, the roles that middle school counselors perform during their workday, to rate the importance of the roles identified, and to identify organizational supports necessary for middle school counselors to successfully perform each of the six most important roles identified. Additionally, this study seeks to gain feedback from expert middle school counselors on how to best align the necessary organizational supports with the identified most important roles.

Methodology: The Delphi method was utilized for this study through an electronic survey that asks participants a combination …

Using Imagery Practice To Improve Airline Pilot Situational Awareness, Brian Christopher Sajdak

Dissertations

Pilot error remains the primary cause of airline airplane accidents (Federal Aviation Administration, n.d.). Airline pilots have relied on Crew Resource Management and Threat Error Management to reduce or eliminate errors (Helmreich & Foushee, 2019). Unfortunately, the worldwide accident rate continues to increase (International Air Transport Association, 2021), demonstrating the need for further research into improving aviation safety. Current regulations do not require imagery training for airline pilots to improve situational awareness (Federal Aviation Administration, 2017a). Athletes and other professionals, such as musicians and medical professionals, use imagery to improve performance (Munzert et al., 2009). Imagery practice may improve the …

Affective Commitment, Mentoring, And Anticipated Turnover Among Millennials, Keiasha Hypolite

Dissertations

ABSTRACT

Millennials comprise the largest group of individuals in the workforce, yet organizations struggle to keep millennials engaged in the workplace. Millennials move from job to job, with an average stay at one employer between 12 and 18 months (Hechl, 2017). Researchers have reported that millennials cause the majority of turnover in the workplace. Globally, human resources practitioners experience difficulties retaining millennials (Sahraee et al., 2021). Previous studies have researched millennials, affective commitment, mentoring, and turnover. However, no known research has used all four factors to solve a global problem. In their discussion of the highly competitive labor market, Ramírez …

Connecting Social And Ecological Systems In Small-Scale Fisheries In The Philippines, Sara Eisler Marriott

Dissertations

Nearly 50% of all marine fish capture in the Philippines is from artisanal fisheries, most of which is un- or under-reported. As in many emerging nations around the world, the Philippines cannot fully address overfishing by managing only half of the catch that comes from commercial fisheries. Marine reserves are a popular governance strategy for conservation and of growing interest for fisheries management. Many marine reserves in the Philippines, however, are not considered effective. In 2014, Rare, an international NGO, implemented a community-based management program to increase the effectiveness of the marine reserves, and while it found biomass increased, there …

Post-Racism As Ideology: Character Construction And Placement, & Narrative Structure In Dear White People, Mphatso Kaufulu

Dissertations

My project looks at post-racism as ideology. Through my chosen text – the Netflix streamed television series called Dear White People – I examine the ways in which post-racism is persists through representational abstractions which reformulate race as largely sets of interpersonal and intercultural, person-to-person social problems rather that a more general condition rooted in institutional or structural social, political and economic arrangements which organize society and produce its cultural dispensation.

To do this, I applied some of Stuart Hall’s ideas – on identity, ideology and commodification – and Bonilla-Silva – specifically in the area of obfuscations or abstractions of …

The Use Of Grounded Theory To Develop A Framework For Understanding Student Retention In Community College Nursing Programs, Kimberly S. Priode

Dissertations

Gaining admission into pre-licensure nursing programs has proven to be quite difficult for the average college student. Topping the list of crucial priorities for many academic institutions is the retention of these nursing students. Yet, the reality is that many students decide not to complete their course of study for reasons other than academic failure. The retention of nursing students is essential to securing competent, well-educated nurses to care for society in years to come. Current research has indicated that the enrollment of students pursuing an Associate Degree of Nursing within the Community College systems has greatly increased; however, attrition …

Friedrich Warnecke: Toward A New Edition Of Ad Infinitum, Elton Machado

Dissertations

The dissertation collects and organizes information on German double bassist, pedagogue, and author Friedrich Warnecke and investigates the significance of his life and work to the double bass history. The ever-changing European musical environment throughout Warnecke’s life, the challenges double bassists faced during that time, and the rapid developments of the double bass at the turn of the twentieth century provide a rich historical background. The study addresses Warnecke’s life, pioneering writings on the history of double bass, pedagogical contribution and influence as a teacher and author, and work as a performing double bassist. Finally, it discusses Warnecke’s substantial pedagogical-technical …

The Speech-Language Pathologist & Emotional Labor, Stress, And Compassion Fatigue, Patricia Martin

Dissertations

Employees in service professions often utilize emotional labor strategies. The purpose of this quantitative study was to evaluate speech-language pathologists’ (SLPs) experiences regarding emotional labor and the extent to which emotional labor is possibly related to job stress, compassion satisfaction, and compassion fatigue. This study also considered the SLPs’ occupational settings in relationship to emotional labor.

A pilot study was conducted and minor revisions were made to the instrument prior to the final study. The researcher collected and analyzed data using an online survey comprised of three validated instruments, ELS, SLPSI, and ProQOL-5. The participants were 270 certified speech-language pathologists …

Empowerment Agents: How Student Affairs Professionals Facilitate The Persistence Of Undocumented Students, Tiffany Paige

Dissertations

This qualitative study investigated how student affairs professionals (SAPs) assist undocumented students in their designated institutional roles, and how their support empowers undocumented students to persist. This research sought to document and assess how student affairs professionals—who interact with undocumented students— identify and respond to the issues they face in their work. Built on the theoretical frame of social capital, and using a thematic analysis design set forth by Braun and Clarke (2012), the researcher interviewed seven SAPs and used a phenomenological approach to design the study and to collect and analyze the data.

Two findings and five corresponding themes …

An Examination Of Organizational Influences On Coach Decision Making, Arien Elizabeth Faucett

Dissertations

Sport coaching occurs in an ambiguous, complex, and dynamic environment bounded by rules, structures, and traditions unique to the context in which it occurs (ICCE et al., 2013; Jones & Wallace, 2005; Nash & Collins, 2006). Coaching is therefore not only pedagogical in nature but also features social and political elements (Abraham & Collins, 2011) focused on athlete development within a specific social and organizational context (ICCE et al., 2013). At the heart of this coaching practice is a constant process of decision-making (Abraham et al., 2006; Lyle & Vergeer, 2013; Vergeer & Lyle, 2009). However, research on the decision-making …

Social Media Usage And Self-Esteem: The Moderating Role Of Media Literacy, Comparison Tendency, And User Motivation, Feng Li

Dissertations

Studies on Facebook and Twitter have shown that social media usage negatively influences individuals’ self-esteem. Many scholars believe media literacy could help reduce this negative impact. Social comparison tendencies and user motivations may also influence this dynamic. The current study is designed to test the moderation effects of media literacy, comparison tendency, and user motivation influencing WeChat Moments usage on individuals’ self-esteem. A group of Chinese college students (N= 299) participated in an online survey. Results show no negative association between WeChat Moments usage and self-esteem. Media literacy only negatively moderates this effect among those who reported having 20-50 friends. …

Origin And Structure Of The First Sharp Diffraction Peak Of Amorphous Solids, Devilal Dahal

Dissertations

Several explanations have been reported in the literature about the origin of extended-range oscillations (EROs) in the atomic pair-correlation function of amorphous materials. Although the radial ordering beyond the short-range order of about 5 Å has been extensively studied in amorphous materials, the exact nature of the radial ordering beyond a nanometer is still not resolved. This dissertation address this problem and explains the nature of the EROs by using high-quality models of amorphous silicon (a-Si) obtained from Monte Carlo and Molecular Dynamics simulations. The extended-range ordering in a-Si is examined through radial oscillations on the length …

"If These Walls Could Speak": Judson College And The Formation Of The New Baptist Woman, 1838-1930, E.Gabrielle Walker

Dissertations

Southern Baptist women’s collegiate education and experiences led to their questioning traditional Baptist gender roles and interpreting religion to fit a modern, progressive worldview. Judson College established in 1838 in Marion, Alabama, created a space for its Baptist students to consider socially appropriate ways, outside of doctrinal boundaries, to serve God, themselves, their families, and humanity. Judson remained theologically and culturally conservative, perpetuating inherited religious and social notions of female subordination to men, while increasingly offering students more progressive curricula to meet changing economic and cultural realities. In compliance with white Southern and Baptist conservative values, Judson’s students generally accepted …

Note-Taking In College Mathematics: An Examination Of The Effectiveness Of Guided Notes And Interactive Notebooks On Student Achievement In College Algebra, Verlonda Neal

Dissertations

The purpose of this study was to investigate how the use of interactive guided notes influences the mathematical performance of college algebra students when solving univariate linear equations. The research involved 68 students enrolled in College Algebra at a community college. The participants were divided into two groups: those who took notes using an interactive guided notes method and those who did not use the interactive guided notes note-taking method to cite instructional information. The participants were administered a test on solving univariate linear equations before and after receiving instruction to answer the research questions posed by the study. An …

Haramed And Dangerous: A Thematic Examination Of Muslim Women’S Representation In We Are Lady Parts, Reham Bohamad

Dissertations

Since the early days of Western media, Muslim women have been portrayed in a negative way. From belly dancers to oil-rich horny sheikhs to voiceless passive wives of terrorists. This image has led the Western spectator to associate Islam and the Muslim women’s headscarf (Hijab) with backwardness, extremism, and oppression. In recent years, there has been a positive shift towards a more inclusive and authentic representation of Muslim women. This shift is the result of the post-network era which provides on-demand media outlets that challenge the dominant hegemonic production system and provide diverse and inclusive images that cater to niche …

A Critical Analysis Of Political And Media Discourse On Immigration During The Trump Era, Daleana Phillips

Dissertations

This research examines political and media discourse on Immigration through four studies: Trump’s immigration reform speech, newspaper coverage of DACA, a Saturday Night Live episode, and social media via #ColoradoBorderWall memes. Various critical cultural theoretical frameworks are used within critical discourse and textual analysis is to examine media and political rhetoric about immigrants and immigration policy during a period of drastic institutional political change evidenced by Trump’s administration. As a collective, these narratives examine how Trump’s rhetoric and populist style of communication demonstrate a return to restrictive immigration rhetoric not witnessed in a presidential administration since the 1920s. This research …

An Examination Of Teachers’, Instructional Support Staff, And Administrators’ Attitudes And Beliefs Concerning Data, Data-Driven Decision-Making And Its Relationship To Student Achievement., Lashandra Antionette Hodge-Mcclure

Dissertations

The Every Student Succeeds Act has an accountability model that holds the educational system in the United States accountable. It was decided that students throughout the United States should be held to the same standards, independent of where they lived. Furthermore, the Every Student Succeeds Act seeks to provide considerable opportunity for all students to obtain a fair, equitable, and high-quality education and reduce academic performance disparities. The study aims to identify the role teachers, instructional support staff, and administrators’ attitudes and beliefs regarding data-driven decision-making plays in student achievement.

Data-driven decision-making is the systematic process of gathering, evaluating, and …

Spectral Multistep Methods For The Scalable Simulation Of Time-Dependent Phenomena, Bailey Rester

Dissertations

Krylov subspace spectral (KSS) methods are high-order accurate, one-step explicit time-stepping methods for partial differential equations (PDEs) that also possess stability characteristic of implicit methods. Unlike other time-stepping approaches, KSS methods compute each Fourier coefficient of the solution from an individualized approximation of the solution operator of the PDE, using techniques developed by Golub and Meurant for approximating bilinear forms involving matrix functions. As a result, KSS methods scale effectively to higher spatial resolution.

This dissertation will present spectral multistep methods, explicit and implicit, designed through the combination of KSS methods and Adams methods. This combination allows spectral multistep methods …

An Exploration Of Faculty-To-Faculty Bullying In Nursing Education: The Prevalence, Who Is Bullying Whom, And Intent To Leave, Pamela Kemp

Dissertations

ABSTRACT

This study, drawn from a nationwide sample with 1,407 responses, examines faculty-to-faculty bullying and incivility in nursing education. It assesses the prevalence of bullying and incivility within the organization, identifies the most commonly occurring bullying behaviors, and identifies and ranks the most frequently occurring uncivil workplace behaviors. The study also examines the relationship between bullying, incivility, and intent to leave the organization.

Research tools include the Negative Acts Questionnaire-Revised (NAQ-R), the Workplace Incivility/Civility Scale (WICS), and the Turnover Intention Scale-6 (TIS 6). The analysis includes an evaluation of significant differences in which faculty members are targets of bullying or …

The Effect Of Sulfonamides Structural And Reactive Properties Examined Through Difunctionalization Of Alkenes, Gavin Rustin

Dissertations

Alkenes as masked functional groups have been a hallmark of organic chemistry and have been utilized to diversify natural products and medicinal targets. Disubstitutions have been a challenge for researchers as the reactions that are implemented most are not selective for the face that they attack. Investigations into electrophilic cyclization looked to overcome this phenomenon by introducing a known chiral center α to an amine where a protecting group, sulfonamide, is added to increase the torsional and allylic strain in the molecules. X-ray crystal structures and NMR techniques prove that the strain does affect the diastereoselectivity of the reaction through …

The Relationships Among Stress, Burden, And Health Status In Rural Caregivers, Julie T. Sanford

Dissertations

The purpose of this study was to examine the relationships among stress, caregiver burden, and the health status of rural caregivers and assess whether caregiver burden and stress predict the physical health status of caregivers in the rural setting. This research study was a descriptive-correlational design and utilized a convenience sample of 63 rural caregivers. The subjects self-reported their perceptions of stress, burden, and health status using the Zarit Caregiver Burden Interview Scale, Lifestyle Appraisal Questionnaire, and the health status question from the National Health Interview Survey.

The relationships among stress, burden, and health status in rural caregivers were significantly …

The Impact Of A Culturally Responsive Approach In Science Education On Kindergarten Students, Monique Hite-Patterson

Dissertations

Classrooms today are more ethnically and linguistically diverse. Unfortunately, students of color demonstrate a history of marginalized educational inequities (Williamson et al., 2007). These marginalized educational inequities impact academic achievement across all content areas especially literacy, math, and science. To improve the academic performance of students who are culturally, racially, ethnically, and linguistically diverse, methods of instruction and pedagogy that better facilitate learning among diverse student populations must be instituted (Ladson-Billings, 2005). A mixed methods study was conducted in response to the need to examine the impact of using culturally responsive strategies on kindergarten student’s attitudes towards science and their …

Weight Change In College Freshmen: Personal, Interpersonal And Situational Influences, Kristin L. Kuhlmann

Dissertations

Obesity has become the most significant noninfectious health risk in the United States, and the major causes of death and disability are shifting to chronic, non-communicable health conditions that are largely attributable to physical inactivity, overweight and obesity, and other diet-related factors. Among children and adolescents, the overweight/obesity rate is approaching 32%, with 17.9% of adolescents becoming obese. While the obesity rate has doubled in all age groups in the United States, it has tripled among young adults aged 18 to 28 years, and 70% of adolescents who are at a healthy weight will become overweight or obese as adults. …

The Experience Of Pediatric Intensive Care Nurses Caring For Dying Children, Rebecca L. Meyer

Dissertations

The purpose of the study was to explore the experience of pediatric nurses caring for dying children. An estimated 55,000 children die every year in the United States and another 400,000 live with life-threatening or life-limiting conditions requiring them to be admitted to the Pediatric Intensive Care Unit (PICU). Nurses who work in this area may have unexplored information and knowledge about the experience itself which could contribute to a better understanding of caring to the nursing profession. Watson's Theory of Human Caring was selected as the framework for the study.

Unfit For Slavery: A Qualitative Exploration Of African American Male Perceptions Of Persistence And Academic Achievement At A Midwest Public Community College, Lavada Rebecca Rice

Dissertations

While African American males enrolled in community colleges, persistence and graduation rates remained low compared to all other demographics. Educational literature and research examining the performance of African American male students in community colleges was scarce (Bush & Bush, 2010). The most recent research focused on African American male students in the community college systems was 2010 (Harris & Wood, 2013) and focused on ways to keep African American male students enrolled. Ignoring the socio-ecological factors can affect decisions to stay enrolled. The researcher believed examining institutional and socio-ecological influences might be necessary to improve the persistence and academic achievement …

Longitudinal Follow-Up Of Yezidis Displaced By Isis Genocide To A Host Village In Iraq, Jordan Greaser

Dissertations

This research examined the quality of life and the religious leadership reliance of the Sinjari Yezidis based on their migration patterns. The study employed a mixed-method research design, exploring a Yezidi case study and discriminant analysis on 2022 survey data from Sinjari Yezidis who fled the ISIS genocide by initially moving to a single village in northern Iraq between 2014-2015. The study hypothesized migration patterns played a role in the quality of life and religious leadership reliance outcomes between 2015 and 2022.

This study showed no difference in the quality of life outcomes between Yezidis who stayed in their displacement …