Digital Commons Network^™

Quantifying Balance: Computational And Learning Frameworks For The Characterization Of Balance In Bipedal Systems, Kubra Akbas

Dissertations

In clinical practice and general healthcare settings, the lack of reliable and objective balance and stability assessment metrics hinders the tracking of patient performance progression during rehabilitation; the assessment of bipedal balance plays a crucial role in understanding stability and falls in humans and other bipeds, while providing clinicians important information regarding rehabilitation outcomes. Bipedal balance has often been examined through kinematic or kinetic quantities, such as the Zero Moment Point and Center of Pressure; however, analyzing balance specifically through the body's Center of Mass (COM) state offers a holistic and easily comprehensible view of balance and stability.

Building upon …

Human-Ai Complex Task Planning, Sepideh Nikookar

Dissertations

The process of complex task planning is ubiquitous and arises in a variety of compelling applications. A few leading examples include designing a personalized course plan or trip plan, designing music playlists/work sessions in web applications, or even planning routes of naval assets to collaboratively discover an unknown destination. For all of these aforementioned applications, creating a plan requires satisfying a basic construct, i.e., composing a sequence of sub-tasks (or items) that optimizes several criteria and satisfies constraints. For instance, in course planning, sub-tasks or items are core and elective courses, and degree requirements capture their complex dependencies as constraints. …

Program Analysis For Android Security And Reliability, Sydur Rahaman

Dissertations

The recent, widespread growth and adoption of mobile devices have revolutionized the way users interact with technology. As mobile apps have become increasingly prevalent, concerns regarding their security and reliability have gained significant attention. The ever-expanding mobile app ecosystem presents unique challenges in ensuring the protection of user data and maintaining app robustness. This dissertation expands the field of program analysis with techniques and abstractions tailored explicitly to enhancing Android security and reliability. This research introduces approaches for addressing critical issues related to sensitive information leakage, device and user fingerprinting, mobile medical score calculators, as well as termination-induced data loss. …

Colloidal Behavior Of Nanobubbles And Their Application In Enhancing Plant Growth: Mechanisms Of Nanobubble Interactions With Microbial And Soil Species, Shan Xue

Dissertations

Climate change has resulted in increasing uncertainties of water resources and disturbance on agricultural activities. For example, the shortage of water resources, land erosion and pollution from runoff significantly affect agricultural sustainability. This dissertation research focuses on the fundamental studies of nanobubble (NB) water and explores the benefits for irrigation to enhance plant germination and growth. Unlike bulk bubbles, NBs exhibit prolonged stability in water and possess large surface areas that facilitate efficient mass transfer and potential tailored reactions (e.g., disinfection). However, the enhancement mechanisms for NBs on seed germination and plant growth remain elusive.

This research first evaluated the …

Computational And Experimental Investigation Of Elemental Sulfur And Polysulfide, Jyoti Sharma

Dissertations

Petroleum processing results in the generation of significant quantities of elemental sulfur (S₈), leading to a surplus of sulfur worldwide. Despite its abundance and low cost, the use of sulfur in value-added organic compound synthesis is limited due to its unpredictable and misunderstood reactivity. This dissertation aims to address this issue by tackling it from two angles. Firstly, by utilizing Density Functional Theory (DFT) calculations, the reactivity of sulfur in the presence of nucleophiles is studied. This facilitates the identification of organic polysulfide intermediates that can be generated under different conditions, as well as the corresponding reactivity for …

Local Labor Markets Exposure To Artificial Intelligence, Greg Call

Dissertations

As more evidence builds that artificial intelligence (AI) is a new general-purpose technology driving a fourth industrial revolution, scholars have begun to consider its potential impact on labor markets. The current debate among researchers is centered on whether AI will ultimately produce net new job gains or losses and what type of workers will benefit or be displaced. While no consensus has developed yet within the literature on AI’s predicted net employment impact, a majority of studies are forecasting that a skill-biased technological change will occur.

This exploratory study contributes to the current literature by operationalizing Webb’s objective patent-based AI …

Pláticas Liberadoras: Testimonios Of Chicana/O Elders En La Comunidad De San Diego, Gabriel Nunez-Soria

Dissertations

There is robust scholarship inquiring about many facets of critical consciousness (CC), most of which is centered around working with teens, youth, and educators. This study explored development of CC through testimonios of the lived experiences of eight Chicana/o elders in San Diego County. All eight of these elders participated in the Chicana/o movement during the late 1960s and early 1970s and carried these experiences with them into the present moment. Development of CC, the contextualized understandings of historical, social, and systemic aspects of our collective struggle against oppression through dialogue, reflection, and action, is a fundamental aspect of liberatory …

Advocating For Social Change: How A Human Service Nonprofit Organization Makes Sense Of Its Advocacy Successes And Failures, Megan Pontes

Dissertations

Nonprofit organizations (NPOs) are uniquely positioned to play a vital role in social change, and many integrate advocacy in their efforts. This dissertation examined how one human service nonprofit organization working to help the unhoused engaged in advocacy and advocacy evaluation using formal and informal methods. Through an in-depth case study of Think Dignity, a San Diego-based NPO engaged in the day-to-day work of social change, this research revealed how it developed its advocacy efforts, collaborated with partners, and assessed its successes and failures. Informed by the framework of social change leadership, the researcher conducted semi-structured interviews with Think Dignity. …

Climate Justice Perspectives And Strategies Implemented By Public Health Nurses And Their Community Partners, Jessica Leclair

Dissertations

The purpose of this dissertation was to understand PHN perceptions, strategies, and experiences with environmental and climate justice in the United States. In the first published study, a scoping review, I examined strategic actions nurses take to promote environmental justice through research, education, advocacy, and practice reported in peer-reviewed literature.

Interests And Decent Work’S Account Of Well-Being And Job Performance In A Lower Social Class Sample, Benjamin J. Wright

Dissertations

There is a need for more accurate information regarding the work-related experiences of individuals from lower social class backgrounds. The present study seeks to evaluate the degree to which important career-related variables (e.g., interest congruence, decent work) account for differences in subjective well-being (SWB) and job performance (e.g., occupational citizenship behavior [OCB], task performance) for a sample of adults from lower social class backgrounds. A novel approach to evaluating the objective indicators of social class for individual study participants was implemented to collect a sample of 365 participants, 105 of which were included in analysis. A path analysis was conducted …

‘The Food Of The Home’ An Exploration Of Place And Practice Of Ordinary Women In Dublin City 1950-2000 On Irish Cuisine, Roann Byrne

Dissertations

Before the rise of restaurants and the accessibility of dining out, the home was where food engagement took place. In the recent surge of Irish Michelin restaurants, and our growing reputation for food culture, one element has been overlooked. Long before the great chefs and level of fine dining we have now – the heart of Irish food culture lay in the home. In the ongoing debate of what Irish cuisine is, we haven’t thought to look inwards, to the routes of our food engagement. This thesis seeks to understand the places, practices and engagement of ordinary women and food …

A Correlational Study Of Work Environment Factors And Organizational Commitment In Southern California Staff Nurses, Rosemary Haggins

Dissertations

The main purpose of this quantitative, correlational study was to examine the association between work environment factors and organizational commitment in staff nurses working in southern California hospitals. Data were generated from 136 of the 205 (66%) purposely selected nurses attending a Sigma Theta Tau research conference.

Implementing Rowley's Aseptic Technique On Wound Care In A Home Health Setting, Kelechi E. Ogu

Dissertations

Pathogen contamination is a risk factor for patients with wounds in home-based care. At the project site, there was no current evidence-based wound care guidelines for the nurses to use during wound care. The purpose of this quantitative, quasi-experimental quality improvement project was to determine to what degree the implementation of Rowley's aseptic non-touch technique (ANTT) would impact wound healing when compared to the current practice among adult patients in a home health facility in urban Texas over four weeks. Jean Watson's health promotion theory and Prochaska's trans-theoretical model were utilized to guide this project. Data on wounds was retrieved …

Recognizing Burden In Unpaid Caregivers Of Patients With End Stage Renal Disease, Joanne Affinito

Dissertations

Aims and objectives. To analyze if an association exists in unpaid caregivers positive aspect of caregiving and self-assessed level of health have on their perceived degree of burden when caring for end stage renal disease patients.

Background. The literature has recognized caregiver burden as having negative consequences such as depression, anxiety or poor perceived health. Many caregivers are unprepared to take on their new role. There is limited research on the positive aspects experienced by caregiving and their perception of self-assessed health.

Method. A sample of 89 caregivers responded to an online survey distributed by The National Kidney Foundation using …

Role Of Ripk3 In The Pathogenesis Of Tet2 Mutant Hematopoietic Malignancies, Kanak Joshi

Dissertations

Hematopoiesis is dynamically controlled by an epigenetic landscape that regulates gene transcription. Ten-eleven translocation 2 (TET2) is a Fe2+ and α-ketoglutarate (α-KG)-dependent dioxygenase that regulates the transcriptional status of genes associated with hematopoietic stem cell self-renewal and multiple stages of lineage commitment and differentiation. TET2 mutations are commonly detected in almost all types of hematopoietic malignancies, including myeloproliferative disorder, acute myeloid leukemia, and peripheral T-cell lymphomas. In most cases, TET2 is a founder mutation that occurred in hematopoietic stem/progenitor cells (HSPCs). The mutant HSCs undergo clonal expansion and evolution with the accumulation of additional mutations for malignant transformation. Microbial-stimulated inflammatory …

Experiences And Perceptions Of Rural Postpartum Women With Substance Use Disorders Inclusive Of Opioids Regarding Their Care, Debra L. Kramlich

Dissertations

Perinatal opioid use and neonatal withdrawal continue to rise rapidly in the face of the growing epidemic of opioid addiction in the United States, with rural areas more severely impacted. Despite several decades of research and development of practice guidelines, maternal and neonatal outcomes have not improved substantially. This focused ethnography aimed to address that gap by exploring rural women's experiences and perceptions of care to inform development of efficacious, holistic models of care to improve outcomes for these women and their children. Participant observations, oral accounts and formal interviews, and artifact review (i.e., health records, any print and electronic …

Trust In The Nurse And Perceived Quality Nursing Care By Adult Oncology Patients With Implantable Vascular Access Port Devices: A Mixed Methods Study, Lois Rajcan

Dissertations

The purpose of this study was to obtain an understanding of nurse behaviors that promote trust and quality nursing care as perceived by oncology patients with totally implantable vascular access devices (TIVAD).

Lgbtq+ Adults During Post-Breakup Appraisals: Understanding Adaptive Communication Coping Mechanisms Following The Termination Of A Non-Heterosexual Romantic Relationship, Nur E Makbul

Dissertations

This study highlights the intersections among Lesbian, Gay, Bisexual, Transgender, Queer, and/or Other Non-Heterosexual (LGBTQ+) individuals' and/or communities' experiences with romantic relationships, relationship crises, emotional appraisals, coping mechanisms, and cyber tech practices. It employs a mixed-method approach, including in-depth interviews with LGBTQ+ participants and a digital ethnographic investigation of social media platforms. The theoretical framework and review of literature have been drawn from the queer perspectives of numerous critical cultural theories, and media and communication theories. Interviews with LGBTQ+ participants largely demonstrate three distinct mechanisms of coping, including emotional, behavioral, and psychological that LGBTQ+ individuals use after the termination of …

Exploring Relationships Between Practicing Registered Nurses (Rns) Pharmacology Knowledge And Medication Errors, Coleen Kumar

Dissertations

Medication errors result in significant negative patient outcomes and major costs to the health care system. Registered nurses (RNs) assume a major role in the medication administration process demanding high-level knowledge and skills.

This study aimed to determine if there was a relationship between practicing RNs' pharmacology knowledge and medication error occurrence.

Teaching Professional Accountability In Nursing: A Phenomenological Investigation Of Faculty Experiences, Lorretta C. Krautscheid

Dissertations

Professional nursing organizations and nursing education credentialing agencies describe accountability as an essential attribute underpinning professional practice. Although accountability is foundational to nursing practice, little is known about how nurse educators teach accountability. The purpose of this qualitative research was to understand and describe socially constructed meanings nurse educators attribute to the phenomenon of teaching accountability. This study brought out of concealment the real-world teaching experiences of nurse educators. Participants (n=6) were nurse educators who taught accountability in baccalaureate academic classrooms. Data collection occurred via face-to-face semi-structured interviews. An interpretive phenomenological design was utilized throughout data collection and …

Implementation Of A Cauti Toolkit For Hospitalized Patients, Barbara Mauger

Dissertations

Catheter-associated urinary tract (CAUTI) infections can be a serious complication during a hospital stay. The project site noted a lack of an evidence based intervention for CAUTI prevention and a solution was sought. The purpose of this quantitative quasi-experimental quality improvement project was to determine if the implementation of the translation of the research by Gould et al. using the Center for Disease Control and Prevention's Guideline for Prevention of Catheter-Associated Urinary Tract Infections would impact the number of CAUTIs among hospitalized adult patients. The project took place in an acute care hospital intensive care unit in urban California over …

Baccalaureate Nursing Student And Faculty Views Of Effective Teaching, Kelley Noll

Dissertations

This study aimed to determine baccalaureate nursing student and nursing faculty views of effective teaching. Using the Teacher Behavior Checklist (TBC), a psychometrically sound tool, participants were sent an email containing a link to an online survey (Keeley, Smith, & Buskist, 2006). Baccalaureate nursing students (n=353) and nursing faculty (n=26) were sent the email with a response rate of 25.2% (n=89) and 69.2% (n=18) respectively. Participants were asked to rank order the top 10 qualities and associated behaviors they perceived as effective to nursing education.

‘The Magic Of Flowers’: An Explorative Study Into The Ways Floral Decorations Influence The Experience Of Guests In A Food Setting, In Contemporary Ireland, Johanna Banaditsch

Dissertations

This research project explores the influence of floral decorations on the experience of a diner in a food setting in contemporary Ireland by examining what and how dining experiences are designed, where floral decorations are relevant in this context and how they specifically influence people in these settings.

The research was conducted using the philosophical worldview of interpretivism. In order to answer the five sub-research questions and thus achieve the research aim, the research draws on existing literature on hospitality experiences, literature on the influence of flowers and qualitative primary research conducted through semi-structured in-depth interviews with flower providers and …

The Mentoring Experiences Of Mid-Level Leaders In Higher Education As They Relate To Leadership Development, Adam Ek

Dissertations

Purpose: The purpose of this phenomenological research study was to describe the mentoring experiences of mid-level leaders in private non-profit higher education as it relates to their leadership development.

Methodology: This phenomenological study identified and described the mentoring experiences of 15 mid-level leaders in private non-profit higher education in California as they related to leadership development. Respondents were chosen based on specific criteria, snowball sampling, and finally convenience. The researcher collected data and coded the data for themes based upon frequency counts.

Findings: Examination of the qualitative data from the 15 mid-level leaders in Private, Non-Profit Higher Education yielded 10 …

Atrial Fibrillation Management In Hispanic Adults, Tania Borja

Dissertations

Background: Research has found atrial fibrillation (AF) to be the primary or a contributing cause of death on 183,321 death certificates, and an underlying cause of death for 26,535 Americans in 2019. Findings indicate an increased AF diagnosis in White people compared to racial and ethnic minorities, contrasting widespread findings of increased prevalence of cardiovascular disease and ischemic strokes in minorities. Significant disparities—by race and socioeconomic status in disease distribution and access to testing and lifesaving treatments—have been documented, specifically associated with social determinants of health (SDOH); i.e., the conditions in which people are born, grow, live, work, and age. …

Evaluation Of The Theory Of Planned Behavior To Determine Phsyical Activity In Saudi Female Adolescents, Muna Alali

Dissertations

The primary purpose of the cross-sectional study was to examine the relationship between self-reported PA and TPB psychosocial factors, including attitude toward PA, subjective norms, perceived behavioral control (PBC), and PA intention among Saudi female adolescents in the Eastern Region, Saudi Arabia.

Advocacy On Facebook: A Content Analysis Of How Small Los Angeles- Based Npos Use Social Media To Engage Audiences, Wen Chen Denq

Dissertations

This dissertation examined the Facebook activities of seven small nonprofits in Los Angeles to understand their social media use and audience responses. Prior research has distinguished three broader engagement strategies used by Nonprofit Organizations (NPOs), including information provision (awareness-raising), action-related messaging (mobilizing), and community-building efforts (organizing). These strategies can play essential roles in drawing in audiences, but also in moving individual supporters toward greater levels of engagement by increasing donations or becoming more engaged champions for the cause. A qualitative and quantitative analysis of organizational Facebook messages and audience responses was conducted over 3 months. The NPOs included in this …

It's Nerve Racking: The Lived Experiences Of New Graduate Clinical Care Nurses Using Simulation As Part Of An Orientation Program, Robert L. Kerner Jr.

Dissertations

The nursing profession has adopted high fidelity simulation (HFS) on the premise that it provides suitable opportunities for experiential learning in a non-threatening environment and it will improve clinical skills and critical thinking through repetition and reflective practice. Numerous quantitative studies have examined the effect of HFS on skill acquisition, critical thinking and teamwork, predominantly with experienced clinicians. The voice of the learner has been conspicuously absent in the discussion. The phenomenon of interest in this study was the experience of simulation for new graduate nurses. The participants were recruited using a purposive technique, and each underwent a comprehensive interview, …

Exploring The School Nurse's Knowledge, Experiences, And Role In Trauma-Informed Care: Implications For School Nurse Practice, Lesha H. Rouse

Dissertations

School nurses as the only health care professional in schools with the potential to be in daily contact with students are in a critical position to create awareness, influence action, and provide leadership in trauma-informed care (TIC). However, there is a lack of research regarding school nurse TIC knowledge, experiences, and role in school health practice. Research has asserted the pervasiveness of Adverse Childhood Experiences (ACEs) in society as well as, it's potential to cause deleterious life-long health, educational, social, and economic outcomes (Bethell et al., 2017; Felitti et al., 1998; Stevens, 2019). Exploring the school nurse's role in TIC …

Hospice Interdisciplinary Team Processes And Effectiveness, Beth A. Hale

Dissertations

The purpose of this research was to test a causal model of interdisciplinary hospice processes and effectiveness. This research examined the impact of organization and team level structure constructs (organizational culture, team complexity, and team leadership) on hospice interdisciplinary team processes and subsequent influence on perceived team effectiveness. The relationships among perceived team effectiveness, team task satisfaction, and family satisfaction with hospice care were also examined.