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Sensorimotor Content Of Multi-Unit Activity In The Paramedian Lobule Of The Cerebellum, Esma Cetinkaya

Dissertations

Based on Center for Disease Control and Prevention report 2016, around 39.5 million people in the United States suffer from motor disabilities. These disabilities are due to traumatic conditions like traumatic brain injury (TBI), neurological diseases such as amyotrophic lateral sclerosis (ALS), or congenital conditions. One of the approaches for restoring the lost motor function is to extract the volitional information from the central nervous system (CNS) and control a mechanical device that can replace the function of a paralyzed limb through systems called Brain-Computer Interfaces (BCI).

One of the major challenges being faced in BCIs and also in general …

Development And Evaluation Of A Hand Exoskeleton For Neurorehabilitation Post Stroke, Ashley Joyce Mont

Dissertations

Stroke affects approximately 800,000 people in the United States each year, and due to its chronic effects, it is one of the leading causes of disability. Many individuals with stroke suffer the loss of motor function in their paretic upper extremity, and longitudinal studies show that 30 — 66% of individuals with hemiplegia fail to regain arm function six months post stroke. After a stroke, the brain undergoes neuroplasticity which will promote recovery of function. Investigators and clinicians are trying to develop rehabilitation interventions that can be designed to promote neuroplasticity, enhancing the recovery outcomes of therapy.

For individuals with …

Decoding Human Movement Through Experiments And Simulation, Vishnu Deep Chandran

Dissertations

The ability to walk or move independently plays a decisive role in one's quality of life. This human ability requires complex coordination with several systems, such as the nervous, muscular, skeletal, and sensory organs, to execute movement tasks. Hence, any disorder of these systems from injury, disease, or aging severely affects the ability to walk or move independently. Disabilities that impair movement severely affect the quality of life. Therefore, studying the changes affecting human movement is necessary to improve the lives of individuals with impaired movement. Since human movement is complex and many systems interact in non-intuitive ways, the overarching …

Passive Interpretable Deep Learning From Cell Phone Activity For Optimal Patient Care, Pelin Ayranci

Dissertations

The majority of individuals in need of mental healthcare fail to seek it, and the diagnosis of those who do is driven predominantly by the patient's subjective self-assessment. There is a need for mental illnesses trackers that measure psychological and physiological symptoms and provide alerts and interpretable data for therapeutic interventions. We present a system that complements existing protocols to detect distress in mental health, passively monitor patients, and quickly alert authorized parties on possible mental health distress. We evaluate modeling a person's mental health from the sensors and activity logs of her/his cell phone using logistic regressions, LSTM, and …

Parameter Selection In Fully Homomorphic Encryption Schemes And Fhe Applications, Cavidan Yakupoglu

Dissertations

Quantum computing has been gaining momentum as a result of recent technological advances. Existing cryptographic systems rely on the difficult problems that can be solved by sufficiently powerful quantum computers. As the quantum age approaches, the desire to discover new difficult problems that cannot be solved by quantum systems has increased. Lattice-based cryptography is a prominent tool for the post-quantum era that facilitates the implementation of encryption systems for practical applications.

The Learning with Error (LWE) and Ring-LWE problems introduce new lattice hardness assumptions that have been incorporated into public-key cryptosystems to facilitate the implementation of numerous privacy-enhancing applications. Fully …

The Relationship Among Menopausal Knowledge, Stress, And Symptom Management In Southern Rural African American Women: A Developmental Perspective, Susan L. Prather

Dissertations

More than 12.9 million African American women are between the ages of 45 and 54, which is the perimenopausal period. Regardless of the millions of African American women transitioning to menopause yearly, very little information is available about their experiences, and even less is known about how they manage their symptoms.

The purpose of this study was to examine the relationship between menopausal knowledge, stress, and symptom management among rural southern African American women. Researchers have examined menopausal experiences over the last two decades; the majority of health information about menopause is based on studies of middle-toupper-class Caucasian women. Hence, …

Patient Perception Of Intensive Care Unit Discomfort, Essa Hakamy

Dissertations

Background: Discomfort has a significant effect on patient health and well-being; however, the symptoms are often difficult to address in ICU. Most patients in ICU are unable to communicate, making it difficult for physicians and nurses to distinguish between pain and discomfort. For example, artificial airways and assisted ventilation prevent patients from communicating. Patients may also have difficulty communicating due to delirium, fatigue, sedation, or neurological disease. Rationale: Discomfort has a considerable influence on patient health outcomes and well-being if not identified and addressed. Researchers have not explicitly explored discomfort apart from pain, which underscores the importance of studying the …

Cultural Intelligence Practices Community College Presidents Use To Lead Their Organization, Jennifer Marta

Dissertations

Purpose: The purpose of this qualitative multicase study was to discover and describe the cultural intelligence practices California community college presidents use to lead their organization through the four dimensions of Ang et al. (2007) cultural intelligence (CQ) framework. Lastly, this study will examine the CQ practices of California community college presidents through the four dimensions of Ang et al.’s (2007) CQ framework.

Methodology: This qualitative multicase study was conducted through semistructured interviews of four California community college presidents to discover their use of CQ practices. Artifact collection and review was used to further describe how they use CQ practices …

A Structured Orientation Development System For Nursing Faculty, Dana R. Mangum

Dissertations

A national nursing shortage is nearing its crest. The Baby Boomer generation is begining to retire in record numbers. Healthcare technology is continually evolving and the topography of nursing education is changing. In order to aquire, develop, and retain excellent nursing faculty to meet the ever changing demands, nursing faculty need to be streamlined into the world of academia. A Structured Orientation Development System (SODS) was developed to aid nursing faculty into the transition from expert bedside nurse to expert nursing faculty. A literature review found no evidence of a structured type nursing faculty orientation system. The purpose of this …

A Crisis Should Not Be Wasted: A Phenomenological Study On How Female Leaders From Military Academic Institutions Find Common Ground During Crisis, Diana Molodilo

Dissertations

Purpose: The purpose of this phenomenological study was to identify and describe the lived experience of female leaders from military academic institutions in finding common ground during crisis situations.

Methodology: This phenomenological study identified and described how female mid-level leaders from Defense Language Institute Foreign Language Center and Naval Postgraduate School found common ground during crisis. The population for this study includes all female leaders from military academic institutions in California, which is estimated at 60 to 100, of which 16 were sampled.

Findings: The findings from this research illustrate that female leaders found common ground when they (a) consistently …

A Phenomenological Exploration Of The Lived Experience Of Military Spouses Of Veterans With Combat-Related Post-Traumatic Stress Disorder, Teresa W. Yambo

Dissertations

A phenomenological study was conducted to explore the essence of the experience of military spouses living with veterans with combat-related Post-traumatic Stress Disorder (PTSD). Husserlian phenomenology was chosen as the theoretical framework because it allowed a deeper understanding of the unfolding o f the spouses' day-to-day experience. A purposive sample of 14 spouses living with veterans with symptoms of PTSD participated in unstructured interviews. Data were analyzed using a modification of Colaizzi's method. Four major themes were identified from data analysis: Recognizing Life is No Longer the Same, Living with Unpredictability, Bearing the Burden, and Creating a New Life. Spouses …

Stress, Bullying, Cortisol, And Depressive Symptoms In 9th Grade Adolescents, Susan G. Williams

Dissertations

Stress and bullying are known contributors to depressive symptoms in adolescents. Prevalence of depressive symptoms in adolescents is estimated to range from 13% to 34% in recent studies. Ninth graders are in a transitional period developmentally, biologically, physically, and psychosocially. Few studies have examined the relationship between stress, bullying, and depressive symptoms from a biobehavioral perspective in 9th graders. The purpose of this study was to examine stress, bullying, and depressive symptoms including a biomarker of stress, salivary cortisol diurnal rhythm, to determine if there is mediation between the individual variables of stressful life events, perceived stress, bullying, and depressive …

Virtual Reality Simulation's Influence On Nursing Students' Anxiety And Communication Skills With Anxious Patients, Tanae A. Traister

Dissertations

The incidence of medical-surgical patients with a secondary anxiety diagnosis is increasing, and nurses' feelings of inadequacy in communicating with anxious patients have hindered the therapeutic nurse-patient relationship, negatively impacting patient outcomes. Simulation methods such as high fidelity simulation and standardized patients have decreased nursing students' anxiety levels in caring for anxious patients. However, they face maintenance costs, availability, and consistency barriers. Full immersion virtual reality simulation has demonstrated
success in nonhealthcare and medical education but is limited in nursing education. Nursing students from an associate and bachelor's degree nursing program participated in a full immersion virtual reality simulation anxious …

Student Nurses' Senior Practicum Experience And Its Role In Transition To Practice, Trilla A. Mays

Dissertations

Newly graduated nurses (NGNs) are not prepared to transition to practice, often leaving practice within the first year. The purpose of this descriptive qualitative study, guided by Meleis' transition theory, was to explore the NGN's perceptions of their senior practicum experience and how the experience prepared them for transition to practice. The Covid-19 pandemic limited recruitment of participants. After extended recruitment efforts, three NGNs were recruited, interviewed using a semistructured interview guide, and recorded using Zoom, which was verified while listening to the recording. The Ravitch and Carl three-pronged coding approach and NVivo was used to assist with the manual …

Family Rejection Predicting Suicidal Thoughts And Behaviors Among Sexual Minority Males: Indirect Effects Through Internalized Homophobia And The Interpersonal Theory Of Suicide Constructs, Brian Bulla

Dissertations

Past research has identified sexual minority males as presenting with more suicidal thoughts and behaviors in comparison to the general population, possibly due to additional stressors (e.g., family rejection, internalized homophobia) encountered throughout their lives that are specific to minority identities (Meyer, 2003). Extant literature has also examined constructs from the Interpersonal Theory of Suicide (ITS; Joiner, 2005; Van Orden et al., 2008) with mixed support for each (e.g., perceived burdensomeness, thwarted belongingness, capability) predicting suicidal thoughts and behaviors among sexual minority males. The current study, therefore, sought to further existing literature by examining indirect effects of family rejection on …

Adults With Preexisting Diagnosis Of Heart Failure In The Environment Of Coronavirus Disease 2019, Ronald Phillips

Dissertations

Background: Heart disease continues to be the leading cause of death among adults in the United States and other industrialized countries. Heart failure (HF) is a form of heart disease and has become an epidemic with complications and medical care costs increasing at an alarming rate. HF affects more than 5.7 million adults in the United States with an incidence between 550,000 to 670,000 annually, primarily affecting females, African Americans, and adults aged 55 years and older. HF is also associated with a high rate of mortality, estimated to increase, with a risk rate of 13%, 32%, and 64% among …

Measuring Psychological Safety, High-Reliability (Hro) Perception And Safety Reporting Intentions Among Pediatric Nurses, Lauren Pfeifer

Dissertations

The purpose of this study was to explore the relationships between psychological safety, perception of working in a high reliability organization (HRO) and safety event reporting intentions among pediatric nurses working in acute care.

The quality and safety of patient care is dependent upon nurses to report safety events and near-misses in order to address systems' issues and identify improvement opportunities. To encourage feedback and promote reporting, many health care organizations have adopted the high reliability framework and strategies to promote team psychological safety. A dearth of literature exists on how the pediatric nurse perceives their workplace. This study addressed …

A Delphi Study Of The Skills Necessary For A Speech-Language Pathologist Or Occupational Therapist To Be Successful In A Leadership Position, Jessica Miller

Dissertations

Purpose: The purpose of this Delphi study was to identify the skills necessary for a speech-language pathologist or occupational therapist to be successful in a leadership position using an expert panel. In addition, the purpose was to rate the identified skills based on importance and lastly to determine the activities experts recommend to acquire the top-rated skills. Methodology: This study used a three-round Delphi method to collect data from expert leaders in speech-language pathology and occupational therapy. In Round 1, the expert panel was asked to identify the skills necessary to transition from a speech-language pathologist or occupational therapist to …

How Exemplary High School Principals Who Utilize Heart-Led Principles Achieve Extraordinary Results, Jeyan Danesh

Dissertations

Purpose: The purpose of this phenomenological study was to describe how exemplary high school principals in Riverside and San Bernardino counties lead from the heart using Mark Crowley’s four principles (building a highly engaged team, connecting on a personal level, maximizing employee potential, and valuing and honoring achievements) to accomplish extraordinary results in their organizations. Methodology: Semistructured interviews were conducted with 8 high school principals to better understand how the use of heart-led principles can lead to extraordinary results on a high school campus. Interview data were collected, transcribed, and coded for themes, allowing the researcher to triangulate data and …

How System Efficacy Affects Risk Perception: Comparison Of The United States, Iran, And China Throughout The Covid-19 Pandemic, Nazanin Bani Amerian

Dissertations

The current study fills a gap in the risk and health communication literature that deals with perception of risk. The extended parallel process model (EPPM) and associated Risk Behavior Diagnosis Scale lack consideration for attenuated perceptions of risk when people believe that some agent (e.g., government agencies or first responders) will protect them from a hazard. This project’s intention is to establish the validity of a new concept, system efficacy, as an addition to the EPPM model. System efficacy supplements current use of self and response efficacy. In addition, this study tries to investigate how culture affect risk perception by …

Effects Of Excessive Student Technology Usage On Student Cognitive Engagement, Kristina Leah Loveland

Dissertations

Technology in the classroom has educators asking the question of whether technology engages students on a deep cognitive level or whether technology is holding students back. Educational technology has the potential to increase student engagement (Norris & Coutas, 2014). Wexler (2019) found technology is holding students back because they prefer the virtual setting to a real-world setting. The purpose of this mixed-methods research study was to determine if there is a connection between student cognitive engagement and excessive technology use. Developed by Antonetti and Stice (2018), the four components of Powerful Task Design were identified as the conceptual framework that …

The Development And Testing Of An Instrument To Measure Decision Making In Emergency Department Triage Nurses, Kelly J. Cone

Dissertations

An emergency department may be the initial entry site for health care for the critically ill client; the triage nurse is the frontline provider to prioritize care. Decision-making skills are important in the accurate direction of client care. To date, no published research was available about triage nurses' decision-making skills in the triage setting. The conceptual frameworks for this study were diagnostic reasoning and Benner's theory of novice to expert.

For Colored Girls Who Considered Natural When The Perm Was Enuf: A Cultural Examination Of The Political Significance Of Natural Hair Youtube Influencers, Randrika C. Henderson

Dissertations

This dissertation explores the discourse between natural hair YouTube vloggers and audiences’ interactions with two popular YouTube channels, Jasmine Brown and The Chic Natural. This study uses hooks’ (2003) oppositional gaze as a theoretical framework that centers on media representation of Black women and the inability to produce images that mirrors Black women’s spectatorship (hooks, 2003). This study investigates how hegemonic and averisve racist ideologies (often represented in Western beauty standards) are encoded and decoded in Black women’s mediated spaces. This cultural and critical semiotic analysis explores two research questions: how hegemonic structures exist during the interactions between influencers and …

The Effect Changes In The Weather Have On Kindergarten Through Third-Grade Students’ Behavior, Sara Michelle Calderon

Dissertations

The joking comments throughout the halls of elementary schools between teachers, “it is going to rain soon” or “a storm is brewing,” seemed to be just a hard day’s excuse. The purpose of this mixed methods study was to understand if there was accuracy in these joking comments. Beginning with quality classroom management and understanding student behaviors, this research examined educators’ perspectives on changing weather and the behavior of their students in their classrooms. In order for a comprehensive understanding, quality classroom management was the most important aspect. Classroom management is one of the most difficult aspects of teaching (Gage …

The Role Of Pereceived Racial Discrimination On Help-Seeking Intention And Psychological Distress, Emili Noel Pickenpaugh

Dissertations

Based on their experiences of perceived discrimination, Black, Indigenous, and People of Color (BIPOC) college students should theoretically be in higher need of mental health care services as perceived discrimination often increases psychological distress. However, there is a documented disparity in the utilization of services. The Theory of Planned Behavior (TPB) suggests that those with higher levels of psychological distress should be more likely to seek services. This study analyzed the relationship between race, psychological distress, and perceived racial discrimination as predictors of help-seeking intention, specifically, with the hopes of understanding the potential moderating role perceived racial discrimination plays between …

Surmounting Perceived Barriers For Missouri Female Superintendents: A Phenomenological Study, Leslee Kristina Smith

Dissertations

Female superintendents throughout the United States disproportionately represent superintendents of public school districts (Cassidy et al., 2021; Gullo & Sperandio, 2020). This research study utilized the theoretical frameworks of feminism and the structured organization of institutions (Acker, 1990). In addition, the qualitative study used the phenomenological design. An open-ended survey was utilized, as well as a follow-up interview with open-ended questions to solicit deeper, lived experiences of self-imposed barriers and the strategies lead female superintendents in a Midwest state employed to surmount those barriers. Forty-four female lead superintendents in a Midwest state shared stories of their journeys to a lead …

The Cultivation Of Transformational Leadership In Secondary School Principals, Christian S. Overstreet

Dissertations

Due to the challenges schools and school administrators face in the 21st century, transformational leadership is considered the most effective approach to school leadership (Bonsu & Twum-Danso, 2018; Longwell-McKean, 2012; Valentine & Prater, 2011). The purpose of this explanatory, sequential, mixed-methods study was to investigate the importance of cultivating transformational leadership qualities and traits within secondary school principals through professional development opportunities, networking experiences, and mentorships. There has been a lack of research on the need to train in transformational leadership and whether or not it positively influences follower outcomes (Peters, 2014; Tafvelin, 2013; Udin, 2020). Phase one data were …

Counseling Supervisors' Experiences Facilitating Supervisees' Cultural Competence, Christopher D. Bozell

Dissertations

A vital attribute of counselors to provide quality client care is cultural competence. Counseling supervisors are tasked to demonstrate cultural competence in supervisory interventions by aiding the supervisees in increasing their knowledge, awareness of attitudes and beliefs, and skills related to culturally sensitive practice. Although many professional organizations require counseling supervisors to provide culturally competent supervision, very few studies have examined how counseling supervisors demonstrate their skills. This qualitative Descriptive Phenomenological study explored the experiences of counseling supervisors when facilitating supervisees’ cultural competence.

Ten individual semi-structured interviews with counseling internship site supervisors were conducted to collect data about their experiences …

Relative Effects Of Self-Paced And Machine-Paced Learning Under Computer-Based Training, Eunju Choi

Dissertations

The purpose of this study was to compare the effects of a self-paced instruction versus machine-paced instruction using a computerized format. Instructional applications such as Programmed Instruction and Computer-Based Instruction have long touted the benefits of self-pacing (e.g., teaching machines, Personalized System of Instruction), but direct comparisons of different pacing types are lacking. Some preliminary research suggests that self-pacing may be prone to distraction by competing reinforcers and overall poor self-management of time. As such, it may be possible that machine-paced lessons (based on optimal timings) may foster better learning while retaining other beneficial features of CBI (interactivity, flexibility of …

Emotional Labor And New Independent School Heads, Seth William Yocum

Dissertations

The most important relationship to the life of an independent school has been the relationship between the head of school and the board of trustees. Still, most independent school heads have found that attending to their relationship with their board of trustees was one of the more challenging aspects of their work. Conventional wisdom and scholarship alike have suggested that this relationship could be especially trying for new independent school heads. The goal of this analytic autoethnographic study was to explore the performed emotional labor of new independent school heads in their relationship with their board of trustees during their …