Digital Commons Network^™

Exploring The Information-Seeking Behaviors And Decision-Making Processes Of Couples In Response To Unfamiliar Tornado Threats, Chih-Chun Rosie Lin

Dissertations

The unique disaster, tornado, causes significant damage and casualties in the US every year, and tornado warnings are crucial to helping people take protective action and reduce the negative impact, especially in an unfamiliar situation. It is important for authorities to better understand how households in low-risk areas rely on information, perceive risk, and make protective action decisions because tornadoes can occur in many geographic locations and might cause significant damage. However, tornado information search behavior and the dynamic decision-making process are not well understood in the existing literature. Therefore, this study aimed to explore the effect of the interaction …

An Autoethnographic Journey To Critical Consciousness: How A White Faculty Member At A Hispanic Serving Institution Moves From Ally To Accomplice By Learning Student Struggles, Benjamin Mercer Drury

Dissertations

This study serves to document my transition into critical consciousness – or conscientização – through interactions with my students. I utilize narrative autoethnographic methods, content analysis, qualitative interviewing, and personal reflection to document my transformation from objectively interested faculty member to accomplice by learning about how the life of my students outside of school affected their performance inside of school. Significant findings fall into two categories: personal and professional. Personally, this study was cathartic. By using a scholarly lens to analyze and reflect on my experience, I was able to process my experience in the context of existing research and …

Maternal Vitamin B12 And D Status, Depression, And Dietary Intake And Neonatal Outcomes Following Bariatric Surgery, Amna Salem Al Mansoori

Dissertations

Bariatric surgery is a more effective approach than dieting for women with morbid obesity and can reduce comorbidities, such as hypertension and gestational diabetes, while improving fertility. Vitamins B₁₂ and D have essential roles in ensuring a healthy pregnancy and favorable neonatal outcomes. However, pregnancies following bariatric surgery may be complicated by micronutrient deficiencies, particularly of vitamins B₁₂ and D. This study aims to investigate vitamin B₁₂ and D status and neonatal outcomes in pregnant women who underwent sleeve gastrectomy or Roux-en-Y gastric bypass compared with those of women who did not. Additionally, the dietary intake and …

Approximate Computing Based Processing Of Mea Signals On Fpga, Mohammad Emad Hassan

Dissertations

The Microelectrode Array (MEA) is a collection of parallel electrodes that may measure the extracellular potential of nearby neurons. It is a crucial tool in neuroscience for researching the structure, operation, and behavior of neural networks. Using sophisticated signal processing techniques and architectural templates, the task of processing and evaluating the data streams obtained from MEAs is a computationally demanding one that needs time and parallel processing.
/="/">
/="/">This thesis proposes enhancing the capability of MEA signal processing systems by using approximate computing-based algorithms. These algorithms can be implemented in systems that process parallel MEA channels using the Field …

Optimal Component Sizing And Control Of A Multi-Source Elecctric Vehicle Based On An Improved Optimization Algorithm And A Novel Energy Management System, Prasanthi Achikkulath

Dissertations

Electric vehicles (EVs) are considered the ultimate solution for a sustainable transportation alternative to reduce the global warming and energy crisis. The public's perception of EVs is still adverse despite advancements in EV technology because of issues with driving range, high initial costs, the added weight of the energy source, and an unpredictably short lifespan of the EV system. To administer the same performance as compared to modern fossil fuel-based vehicles, hybridization of multiple energy sources is significant for EVs. The most pressing issues with multi-source EVs are optimum source sizing and regulating power flow from hybridization sources with the …

Experiences Of Counselors Who Assist Women In Midlife Who Display Depressive Symptoms: A Transcendental Phenomenological Study, Carla Tovar

Dissertations

In this dissertation, I present a transcendental phenomenological study conducted with 12 counselors who worked with women in midlife who displayed depressive symptoms. The purpose of this study was to understand the lived experiences, clinical and personal, of licensed professional counselors (LPCs) who worked with women in midlife who displayed depressive symptoms. Through the study, I sought to recognize the essence and themes that emerged from these LPCs who worked with this population. Moreover, this study was designed to obtain a better understanding of how these LPCs managed their feelings and thoughts, how they helped when working with these women, …

Development Of Innovative Multi-Drug Approaches To Counteract Illicit Drug Abuse In The Uae Population, Manal Ali Alhefeiti

Dissertations

The abuse of addictive substances is on the rise in the United Arab Emirates (UAE) population. Consequently, the UAE government spends about Dhs 5.5 billion annually on the rehabilitation of drug addicts. Blood, urine, and hair tests can reveal signs of sporadic or chronic drug use. Given the list of banned chemicals in the UAE, our main objective in this work was to develop a novel analytical method to identify and measure banned substances, especially prescription and over-the-counter drugs in the UAE. We developed and validated a rapid, sensitive and reliable liquid chromatography-mass spectrometry/mass spectrometry (LC-MS/MS) approach for the targeted …

Ab-Initio Investigation Of 2d Materials For Gas Sensing, Energy Storage And Spintronic Applications, Saba Khan

Dissertations

The field of Two Dimensional (2D) materials has been extensively studied since their discovery in 2004, owing to their remarkable combination of properties. My thesis focuses on exploring novel 2D materials such as Graphene Nanoribbon (GNR), holey carbon nitride C₂N, and MXenes for energy storage, gas sensing, and spintronic applications, utilizing state-of-the-art techniques that combine Density Functional Theory (DFT) and Non-Equilibrium Greens Functions (NEGF) formalism; namely Vienna Ab-initio Simulation Package (VASP) and Atomistic Toolkit (ATK) package.
/="/">Firstly, on the side of gas sensing, the burning of fossil fuels raises the level of toxic gas and contributes to …

Nano-Supported Biocatalysts For Efficient Wastewater Remediation, Khadega Abobaker Al-Maqdi

Dissertations

The existence of various bioactive organic pollutants in wastewater and municipal water sources has raised concerns regarding their potential effects on human health. As a result, different techniques are being explored to effectively break down these persistent organic pollutants. Peroxidases have recently emerged as a new approach to remediation that may have advantages over traditional methods. However, evaluating the effectiveness of different peroxidases in breaking down various emerging pollutants can be time-consuming and difficult. In this study, a quick and reliable method was developed to test the degradability of 21 emerging pollutants by five different peroxidases (soybean peroxidase, chloroperoxidase, lactoperoxidase, …

Exploring The Use Of Cultural Values In The Evaluation Of Programs With Native American Tribes, Karen Lynn Alexander

Dissertations

This dissertation is a qualitative study that explores the importance of including cultural values in evaluation and whether this would lead to an increase in utilization of evaluation results. It was first wondered whether Native American values are included when evaluations are completed for Indigenous Tribes. A review of evaluations revealed that evaluations in the published literature are including general Native American values, although a document review alone was found to be insufficient as a method to capture the nuances related to value expression. It is suggested that more research is needed in the area of metaevaluation to include culturally …

Research Training And Certification Protocol For Medical Students, Michelle Arisleida Padley

Dissertations

Early and frequent exposure to research is imperative to initiating and sustaining long term for medical student research interest. The attitude and approach of physician mentors has been demonstrated to have a substantial effect on student perceptions of research involvement. The purpose of this study is to determine best practices for assessing student perceptions for a research certification program. An additional long-term objective is to utilize these findings to help maintain interest in research throughout their medical careers. Research is an essential aspect of the prestige of medical schools, and the benefits of academic research institutions have numerous facets, including …

A Critical Analysis Of Discrepancies In Behavioral Health Program Ratings By Evidence-Based Practice Registers For Behavioral Health, Miranda Jade Lee-Easton

Dissertations

Decision makers in the behavioral health disciplines are under increasing pressure to identify and implement evidence-based practices (EBPs). These decision makers often do not have the time or expertise to assess primary studies of program efficacy or effectiveness. They could benefit from tools to assist them in identifying and implementing EBPs. One tool is an evidence-based practice register (EBPR). Prior studies have documented that when multiple EBPRs rate a given program, they may come to seemingly conflicting program ratings. The prior research concerning the reason for these conflicts is sparse. The purpose of the present study is to understand how …

Teaching And Assessing Cornhole As A Leisure Activity For Young Adults With Developmental Disabilities, Katarina Rotta

Dissertations

Leisure has long been identified as a crucial component of a healthy lifestyle. One population that displays extremely low levels of leisure activity is people with developmental disabilities, which is concerning because previous research has identified a positive correlation between leisure activity and quality of life among such individuals. The purpose of the present project was to teach and assess cornhole as a leisure activity for seven young adults with developmental disabilities. Study 1 assessed points scored with four versions of cornhole and preference for those versions. Study 2 evaluated a procedure intended to teach participants to keep score. A …

Anti-Woman Invective On The Early Modern Stage: Abuse, Degradation, And Resistance, Savannah Xaver

Dissertations

On the early modern stage, gendered epithets like “strumpet,” “mermaid,” “minx,” “hobby horse,” “courtesan,” “drab,” and “whore” are not just markers of misogyny. Instead, these insults harm the male user as well as their female target. My cross-playwright and cross-genre connections show the complex, wide use and impact of anti-woman terms. A wide-ranging study of the plays of Shakespeare and his contemporaries reveals that gendered insults signify masculine mental decline in tragedies as well as comedies and tragicomedies. In tragedy, the increasingly violent language of male slur users – like, for example, the frustrated Othello, who declares, of his wife, …

An Examination Of Well-Being Across Theories Of Career Development Using Latent Profile Analysis, Jessica Schultz

Dissertations

Multiple theories have been designed to better understand how elements of working can affect personal well-being (Dawis, 2005; Duffy et al., 2016a; Duffy et al., 2018). The Theory of Work Adjustment (Dawis, 2005), a classic trait-and-factor theory, proposes that job satisfaction is the result of how well the needs and values of the worker fit within the needs and expectations of the workplace. The Psychology of Working Theory (Duffy et al., 2016a) posits that acquiring decent work (i.e., jobs that provide safety, access to healthcare, adequate compensation, hours for rest, and congruent values) will lead to well-being. Additionally, this theory …

Celiac Disease Prevalence And The Characteristics Of Celiac Patients In The United Arab Emirates, Two Centers Study, Asma Hamed Alnababteh

Dissertations

Celiac Disease (CD) is a chronic autoimmune gastrointestinal disorder caused by genetic susceptibility to gluten and affects around 1% of the population worldwide. CD can occur at any age and is diagnosed by detecting specific serological biomarkers and histopathological changes in the duodenal biopsy. In the United Arab Emirates, there is a lack of studies describing CD in children or adults; this thesis aimed at researching the epidemiology of celiac disease in among the populations in the United Arab Emirates.

Two Studies were conducted to achieve the research objectives, study one was conducted in Cleveland Clinic Abu Dhabi (CCAD) and …

Factors Affecting Changes In Road Traffic Collision Related Injuries And Deaths Over Time: The Global And The United Arab Emirates Perspectives, Yasin Jemal Yasin

Dissertations

Road traffic collisions (RTCs) cause 1.35 million deaths per year worldwide. Approximately 50% of these deaths were among pedestrians and motorized 2-3-wheeler users. In the United Arab Emirates (UAE), RTC deaths were higher compared to other high-income countries (HICs). The United Nations (UN) Decade of Action for road safety 2011-2020, aimed to reduce road traffic deaths by 50% by the year 2020. The aim of this dissertation was to investigate factors affecting changes in RTC-related injuries and deaths over time at global and UAE levels. Multiple research methods were used to investigate the research questions. Global data on pedestrian and …

Characterization And Genomic Analysis Of Two Escherichia Coli O157:H7 Bacteriophages Isolated From Pigeons, Mohamad I. Alolama

Dissertations

Enterohemorrhagic Escherichia coli, also known as EHEC, is a subset of Shiga toxin-producing E. coli (STEC), and it has recently been identified as one of the principal foodborne pathogens. E. coli O157:H7 is the most important serotype of STEC for its role in causing foodborne illnesses. E. coli O157:H7 could cause various gastroenteritis symptoms such as diarrhea, hemolytic uremic syndrome, hemorrhagic colitis, and thrombotic thrombocytopenic purpura and may cause death. Elimination of E. coli O157:H7 during food processing and storage is a possible solution. Bacteriophages have a significant impact on bacterial populations in nature due to their ability to …

Integrated Experimental And Dft Study Of Palladium And Nickel Metals Supported On Reducible Metallic Oxides For Selective Hydrogenation Of Alkynes And Dienes Bonds, Toyin Daniel Shittu

Dissertations

This dissertation investigates the capacity of ceria (CeO₂) to serve as a stand-alone reactive catalyst, and to act as catalyst support for different catalyst configurations. Experimental and density functional theory (DFT) approach were used to critically predict and to design ceria-containing catalysts. Ceria owes the catalytic propensity to the ability to undergo switch in the oxidation state from the +4 to +3 states. Motivated by experimental studies involving CeO₂ catalysts, defects CeO₂ surface with an oxygen vacancy (CeO2(111)_Vo) was used to explore the decomposition chemistry of methanethiol based on DFT. The potential formation pathways revealed that …

Pathogen Risk Assessment On Arabian Felines In The United Arab Emirates, Laia Montserrat Stefano

Dissertations

The Arabian Peninsula has been known to harbour five species of felines, namely leopards (Panthera pardus), cheetahs (Acinonyx jubatus), caracals (Caracal caracal), sand cats (Felis margarita), and wildcats (Felis silvestris). Currently, their situation in the wild is critical in the region and ex situ breeding efforts are the greatest hope to restore their populations. However, these efforts need to go hand-in-hand with focus on their health, since pathogens are known to be a serious threat to animals under managed care. Globally, the potential pathogens of these five species include viruses, …

Prevalence Of Metabolic Syndrome And It’S Associated Factors In Emirati Adults: The Uae Healthy Future Cohort Study, Shamma Jauaan Almuhairi

Dissertations

In the last few years United Arab Emirates showed a rapid growth in economic field which was associated with growth of other types of related diseases, specially in non-communicable disease; mainly type 2 Diabetes Mellitus (DM) & cardiovascular related diseases (CVDs). The presence of multiple risk factors simultaneously in Metabolic Syndrome (MetS) has been shown to increase the risk for atherosclerosis development in young and middle-aged adults. Metabolic syndrome (MetS) is clustering of cardiometabolic risk factors and has many different definitions according to different international organizations. Aims and objectives:This study has three main objectives; it aimed to estimate the prevalence …

The Dark Side Of Leadership: Mid-Level Managers And Their Experience With Hubristic Behaviors Of Executives, Leili Sadaghiani

Dissertations

Purpose: The purpose of the study is to identify the emotional reactions of mid-level managers to executives’ hubris behaviors in a corporate setting.

Methodology: This leadership study uses qualitative phenomenological methodology was executed to explore the lived experiences of mid-level managers with past executives who practiced hubristic behavior.

Findings: The findings of this research on the lived experiences of mid-level managers with hubristic behaviors of executives suggest that the lack of support lessens the mid-level manager’s confidence; with little support; the mid-level manager was either afraid to fight the executive or gave up trying; the mid-level manager faced stress even …

Linking Midwifery Practice To Outcomes: A Delphi Study, Holly P. Kennedy

Dissertations

How is excellence in the profession of midwifery defined? Does excellence result in improved outcomes for the recipient(s) of midwifery care. These are the questions that the profession of midwifery grapples with today within the context of a changing health care arena. The purpose of this research was to (a) describe exemplary midwifery practice, (b) link specific aspects of the process of exemplary practice to specific outcomes, and (c) initiate the development of an exemplary midwifery model of care.

Cognitive Dysfunction In Older Breast Cancer Survivors, Adele Crouch

Dissertations

Up to 75% of the more than 3.5 million breast cancer survivors (BCS) living in the United States report cognitive dysfunction. However, little is known about cognitive dysfunction among older BCS, who may be at greater risk. Therefore, the purpose of this dissertation was to characterize cognitive dysfunction in older BCS. Specific aims included:

(1) synthesize the literature regarding cognitive dysfunction in older BCS

(2) examine the relationships between a) objective cognitive function (immediate memory, delayed memory, attention, executive function-working memory, verbal fluency) and subjective cognitive function (attention); b) demographic factors, medical factors, treatment factors, and cancer-related symptoms (depressive symptoms, …

An Investigation Of The Impact Targeted Motivational Efforts And Leadership Styles Have On School Climate, Ashley Nichole Galloway

Dissertations

This dissertation explored the challenging nature school climate holds within the realms of organizational and building effectiveness among building leaders, staff, and students. Difficulties associated with organizational climate were identified. There are numerous factors that contributed to shaping school climate and school climate is also highly dependent on perceptions (McGregor, 1960). Through an interdisciplinary focus between targeted motivational efforts and administrative leadership styles, this study aimed to discover a new understanding of central climate and leadership factors which might lend to a more positive environment. Despite the substantial amount of critical work performed within this study, recommendations for future research …

Dimensions Of Quality Of Care: African-Americans' Perspectives, Marie N. Fongwa

Dissertations

In this descriptive study, data related to African Americans' dimensions of quality of care in the San Francisco Bay Area of Northern California were collected using focus group and a Modified Delphi approach. In-depth focus group interviews explored and described participants' (a) level of quality of care knowledge, (b) perceptions, feelings/opinions about available health care services, (c) satisfaction with available health services, and (d) perspectives on how such services can better serve their health care needs. The Delphi technique was used to validate and achieve consensus on the focus group information. Seven focus groups were conducted (N = 35). Twenty-two …

Effectiveness Of A Nurse Leader Mentorship And Support In The Acute Care Setting: A Program Evaluation, Kymberlee Shutts

Dissertations

A solution to rising nurse leader attrition may include focused mentorship into the role. A health system in Northeast Florida developed a nurse leader mentorship program for nurses who were new to the leader role or new to the organization during the coronavirus disease of 2019 pandemic. This nurse leader mentor program was designed to help new nurse leaders feel more comfortable in the role and create a relationship with a mentor. In the program, a full-time Nurse Mentor was assigned to meet with new nurse leaders periodically over the first year in their role. The nurse mentor program aimed …

By The Grace Of God: The Lived Experience Of Mothering An Infant While Recovering From Chemical Dependency, Kathy R. Higgins

Dissertations

What is it like to mother an infant while recovering from chemical dependency? That question is answered by this research into one of our country's major public health issues. Research and literature related to drug use by women is generally lacking. Both members of the mother-baby dyad begin their relationship in a vulnerable state and are at great risk for problems. The predominant qualitative method used by nurse researchers has been grounded theory. This method results in describing a process; however, understanding the process and its meaning to those who live it every day is required to better deal with …

Improving Outcomes Through Patient Empowerment At Transition Of Care: A Fall Prevention Program For Stroke Survivors, Tiffany M. Hoke

Dissertations

Stroke survivors fall 7 times more annually than same-aged healthy adults; and most fall within the first 2 to 6 months post stroke after transition of care home from the acute setting. These falls cause hip fractures and other bodily injury, further compounding post-stroke mobility, fear of falling, social isolation, and social dependence while collectively yielding poorer outcomes at greater financial burden.

To date, no fall prevention program has targeted stroke survivors as they prepare for transition of care home from the acute setting.

The purpose of this practice inquiry is to develop an evidence-based fall prevention program aimed at …

Individual Perceptions Related To Fall Risk Among Older Adults In Acute Care Setting In A Saudi Arabian Hospital, Zuhar S. Altaymani

Dissertations

Despite a plethora of research examining fall risk, including numerous fall prevention strategies, falls remain the most common adverse event among the elderly. Frail older adults are at higher risk for falls. With the increase in the geriatric population and their risk for frailty, it is imperative to address the limitations of both diagnosis and treatment of frailty, and the concurrent fall risk for older adults in Saudi Arabia by examining self-perception of fall risk. In older Saudi Arabian adults, falls are a serious health issue affecting up to 49.9% of elderly people, often resulting in fractures, traumatic brain, and …