Digital Commons Network^™

Factors Influencing Community Responses To Hoarding: Evaluating Operational Culture Of Hoarding Task Forces, Stigma, And Successful Outcomes, Leslie Gail

Dissertations

Hoarding is generally recognized as a pervasive need to acquire and retain items past the point of maintaining safe living spaces. Ushered into popular culture through television shows highlighting conflict, awareness of hoarding has increased. Experts report this condition affects 2-5% of the adult population, but this figure does not include children, family, neighbors, and community members (Buscher et al., 2013; Minor and Youth Children of Hoarding Parents, 2021). A unique feature of hoarding is the myriad of ways it is discovered.” People who hoard may keep conditions a secret due to a lack of awareness, concerns about forced remediation, …

They Don'y Expect You To Know Much: Black African International Students Encountering And Countering The Afropessimistic Attitude Within Academic Spaces, Margaret Sergon

Dissertations

Black African international students in the United States are vulnerable to increased microaggressions because of their minority statuses. In addition to being Black and speaking with non-native accents, African students must contend with Afropessimism which in this study refers to the Western world’s negative perception of Africa. The study is a mixed methods study that seeks to understand how the Afropessimistic attitude impacts the way Black African international students are perceived and interacted with, within the academic spaces. The findings indicate that African international students consistently encounter the Afropessimistic attitude, and it impacts their academic engagement. The findings also suggest …

Understanding The Voluntary Moderation Practices In Live Streaming Communities, Jie Cai

Dissertations

Harmful content, such as hate speech, online abuses, harassment, and cyberbullying, proliferates across various online communities. Live streaming as a novel online community provides ways for thousands of users (viewers) to entertain and engage with a broadcaster (streamer) in real-time in the chatroom. While the streamer has the camera on and the screen shared, tens of thousands of viewers are watching and messaging in real-time, resulting in concerns about harassment and cyberbullying. To regulate harmful content—toxic messages in the chatroom, streamers rely on a combination of automated tools and volunteer human moderators (mods) to block users or remove content, which …

Entrepreneurship And Heterogeneity Among Firms' Strategies: Three Essays, Xi Zhang

Dissertations

The first essay of this dissertation focuses on the entrepreneurship survival in the early stage, during which time an entrepreneur plays the game at the "edge of chaos" and improvises in real-time to learn the strategic playing field. It examines the social networks of entrepreneurs and the impact on new venture survival. Specifically, it explores how the entrepreneurs' social connections with other entrepreneurs and their types of employment differentially affect survival during the different stages of the entrepreneurial journey in the United States and India. Using the Global Entrepreneurship Monitor (GEM) dataset, this study documents not only how the social …

Optimization Opportunities In Human In The Loop Computational Paradigm, Dong Wei

Dissertations

An emerging trend is to leverage human capabilities in the computational loop at different capacities, ranging from tapping knowledge from a richly heterogeneous pool of knowledge resident in the general population to soliciting expert opinions. These practices are, in general, termed human-in-the-loop (HITL) computations.

A HITL process requires holistic treatment and optimization from multiple standpoints considering all stakeholders: a. applications, b. platforms, c. humans. In application-centric optimization, the factors of interest usually are latency (how long it takes for a set of tasks to finish), cost (the monetary or computational expenses incurred in the process), and quality of the completed …

Assessing Structural And Functional Brain Alterations And Work-Related Fatigue In Non-Hyposmic And Hyposmic Covid-19 Survivors, Rakibul Hafiz

Dissertations

In the year 2019, life began to change at the advent of a global pandemic caused by the novel coronavirus. Mask mandates and mass vaccinations have mitigated the effects significantly, yet cases keep rising with new variants, especially, in densely populated countries, like India. Recent neuroimaging evidence shows the virus can attack the central nervous system (CNS). However, exactly which brain regions undergo structural and functional changes remain largely unknown. Many patients experience 'loss of/reduced sense of smell' (i.e., hyposmic) and an alarming number of survivors develop persistent symptoms ('long-COVID') for several months after initial infection. Fatigue is the most …

Repeated Low-Level Blast Induces Chronic Neuroinflammation And Neurobehavioral Changes In Rat Models, Arun Reddy Ravula

Dissertations

Blast-induced neurotrauma (bTBI) is a signature medical concern for military personnel when they are exposed to explosions in active combat zones. However, soldiers as well as law enforcement personnel are also repeatedly exposed to low-level blasts during training sessions with heavy weaponries as part of combat readiness. Service personnel who sustain brain injuries from repeated low-level blasts (rLLBs) do not display overt pathological symptoms immediately but rather develop cognitive impairments, attention deficits, anxiety, and sleep disturbances over time. An improved rat model of rLLB was developed in this thesis by applying controlled low-level blast pressures (10 psi) repeated five times …

Adversarially Robust And Accurate Machine Learning For Image Classification, Yanan Yang

Dissertations

Machine learning techniques in medical imaging systems are accurate, but minor perturbations in the data known as adversarial attacks can fool them. These attacks make the systems vulnerable to fraud and deception, and thus a significant challenge has been posed in practice. This dissertation presents the gradient-free trained sign activation networks to detect and deter adversarial attacks on medical imaging AI (Artificial Intelligence) systems. Experimental results show a higher distortion value is required to attack the proposed model than other state-of-the-art models on brain MRI (Magnetic resonance imaging), Chest X-ray, and histopathology image datasets. Moreover, the proposed models outperform the …

Unconscious Bias In United States Marine Corps Leadership Doctrine: Examining Microaggressions Through Document Analysis, Patrick Butler

Dissertations

This dissertation employed a document analysis format to examine Marine Corps leadership education doctrine for microaggressions. The United States Marine Corps (Marine Corps or USMC) is the military service with the least diverse officer cadre in terms of sex, gender identity, and race. The study results show a pattern of repeating unconscious bias-related content within the Marine Corps’ documents. Such patterns can negatively affect minority members in terms of their health, acceptance, and performance within the organization. The results also document an overriding bias-culture which puts Marine Corps leadership in a dilemma of trying to encourage conformity to traditional organizational …

Correlates Of Health Literacy And Perceptions Of Burden Among Caregivers Of Persons Diagnosed With Chronic Illnesses, Mubarak Aldawsare

Dissertations

Background/Rationale: Greater attention is needed on factors effectively supporting caregivers because poor well-being of caregivers can hamper overall patient outcomes. Lack of awareness of caregiver burden has implications for healthcare systems globally. Caregivers may encounter various levels of burden as a result of providing long-term care to individuals diagnosed with one or more chronic illnesses. Caregivers with inadequate health literacy are more likely to experience feelings of uncertainty, and as a result, caregiver burden. Little is known about the impact of the health literacy of caregivers on the level of burden when providing care to individuals with complex care …

An Exploratory Study On How Math Stories Engage Young Learners In Mathematical Sense-Making, Maria Gigi Carunungan

Dissertations

This is an exploratory study of how pedagogy in the form of math stories, shapes young learners’ perceptions, motivations, and sense-making of math concepts. The research is presented in an exploratory documentary, with audio-video data collected through the iPhone. The pilot test of story-driven math learning solutions was conducted by two teachers with eight first grade children from diverse backgrounds in an afterschool program. This study also includes interviews of the teachers, educational leaders and specialists in primary school curricula, children’s literature, and math education. The results of the pilot validated the efficacy of story-driven math learning solutions for mathematical …

The Role Of School Counselors In Advocating For Social Justice For All Students During The Covid-19 Pandemic, Amna Jaffer

Dissertations

The field of K–12 school counseling has evolved to embrace social–emotional and mental wellness aspects of students in addition to academic and career/college readiness. Social justice advocacy has been added to the role of school counselor by professional and educational entities. What is less clear is how well-versed school counselors are in social justice advocacy competencies, whether they are equipped to lead and advocate for social justice, barriers and accomplishments in doing so, and ways in which this role may be further developed and integrated into the field of school counseling, particularly in the context of the COVID-19 pandemic. As …

Student Engagement And Universal Design For Learning (Udl): A Community College Case Study, Candice R. Nance

Dissertations

Community colleges have a significant impact on education. The community college population includes some of the most vulnerable students who have the most to gain from educational attainment. The objective of this mixed-methods case study was to investigate the practical implications and impact of Universal Design for Learning (UDL) on student learning, engagement, and sense of belonging. Forty-nine students participated in this study from seven sections of an asynchronous introduction to business course at a California community college during the COVID-19 pandemic. Findings suggested that the UDL intervention increased students’ final grade percentages, exam scores, and group project scores while …

Phenomenological Study Of The Lived Experience Of New Graduate Nurses Caring For Hospitalized Patients Living With Dementia, Geline Buenconsejo

Dissertations

Title. Phenomenological Study of the Lived Experience of New Graduate Nurses Caring for Hospitalized Patients Living with Dementia.

Purpose. This study explored new graduate nurses’ lived experiences in caring for hospitalized patients living with dementia.

Background. The first twelve months of transitioning from student to professional nurse in acute care settings are the most stressful, emotionally challenging, and mentally exhausting for new nurses striving to apply newly acquired skills into practice. Some of the most challenging patients for nurses to care for are hospitalized patients living with dementia (PtLWD). With the projected increase in the number of patients with dementia …

Trauma Recidivism: Threat Orientations And Recurrent Injury Perceptions, Molly Bauer, Ann M. Mayo

Dissertations

Purpose: To describe select sociodemographic and clinical variables, threat orientations, and the perceived likelihood of recurrent injury (PLRI) of individuals deemed at risk for trauma recidivism (TR).

Background: Injuries and violence are the leading cause of traumatic death among persons aged 1 to 44 in the United States. Trauma recidivism occurs when an individual experiences more than one significant injury requiring hospital care in a five-year period. The relationship between a trauma recidivist’s perception of recurrent injury and orientation towards a threat remains unclear.

Conceptual Basis: Trauma recidivism risk factors contribute to forming an individual’s PLRI. When individuals acknowledge the …

A Description Of Impostor Phenomenon In Certified Registered Nurse Anesthesiologists, Jeffrey R. Darna

Dissertations

Background: Imposter Phenomenon (IP) is an evolving, multidimensional construct defined as self-perceived intellectual phoniness and professional ineptitude frequently experienced by individuals working in high performance or competitive environments. IP consequences include psychological distress, role under-optimization, and professional paralysis. Certified Registered Nurse Anesthesiologists (CRNAs) are at risk for impostorism; however, IP presence, intensity, and career effects are unknown.

Purpose: The study measured IP in CRNAs and determined the relationship between IP and select sociodemographic and practice variables.

Methods:

Design: A descriptive, cross-sectional correlation design measured IP using an Internet-based survey from a random sample of 170 members of the American …

Remifentanil Patient Controlled Analgesia Use In Laboring Women: A Feasibility And Acceptability Study, Joshua Carr

Dissertations

Background/Purpose: Interest in remifentanil patient controlled analgesia (RPCA) as a treatment for labor pain has increased due to its unique pharmacodynamics and effectiveness on pain control among parturients. Despite its promise, RPCA remains infrequently used in the US. The purpose of this study was to 1) examine the implementation and acceptability of a new RPCA protocol in the labor and delivery ward of a mid-sized hospital, and 2) identify the attitudes and beliefs of healthcare workers in a real-world clinical setting.

Theoretical/Conceptual Framework: The holistic nature of Comfort Theory can account for the proposed mechanisms contributing to the …

Transitions In Palliative Care: Referral Time And Healthcare Utilization In Advanced Stage Colon, Rectal And Lung Cancer Patients., Ann Lawani

Dissertations

Background: Despite lung, colon, and rectal cancer being the leading and third leading cause of cancer-related death among both men and women respectively, few studies have examined Palliative Care Consultation (PCC) on healthcare utilization (HCU) in individuals with advanced stage diagnosis in this disease cohort. Extant research shows advanced stage cancer patients receive aggressive treatments, within the last 30 days of life. Palliative care is linked to less aggressive cancer treatment, and palliative interventions applied early, at diagnosis of advanced cancer, is more favorable for improving symptom and disease management. Patients and family members with early PCC are better informed …

Impact Of Preoperative Psychological Evaluations On Bariatric Surgery Outcomes, Melanie A. Caustrita

Dissertations

Obesity is a major global health challenge affecting 603.7 million adults and is a risk factor for common illnesses such as diabetes mellitus II, chronic kidney disease, cardiovascular disease, gastroesophageal reflux disease, and poorly controlled hypertension. Americans have the highest rate of obesity. Patients with a body mass index (BMI) > 35 with one or more obesity related complications should be considered for bariatric surgery. Forty percent of patients seeking obesity treatment have at least one psychiatric illness with mood and anxiety disorders being the most common. Preoperative screening is recommended to identify patients with psychosocial risk factors that may lead …

Implementation Of The Bedside Mobility Assessment Tool In The Ambulatory Care Setting, Racquel Hermosura Ballinger

Dissertations

Falls remain a concern for healthcare organizations nationally. Fall rates at the site remained a concern, so an evidence-based approach was sought. The purpose of this quantitative, quasi-experimental quality improvement project was to determine if the implementation of Boynton's Bedside Mobility Assessment Tool (BMAT) used in conjunction with current fall practices would impact fall rates among patients 65 years and older undergoing a colonoscopy. The project was implemented in an ambulatory care setting in Southern California over four weeks. Sister Callista Roy's middle-range nursing theory, the adaptation model, and Neuman's systems theory were the scientific underpinnings of the project. Data …

From Empathy To Social Empathy: A Journey In A Diversity, Equity, And Inclusion Workplace Graduate Certificate, Francesca Ferrari, Lisa M. Woodrum

Dissertations

This study aimed to explore and understand the impact of the Graduate Certificate in Workplace Diversity, Equity, and Inclusion (DEI Graduate Certificate) on master’s and doctoral students’ social empathy (SE) development. The participants in this certificate engaged in several online activities that increased their knowledge of microaggressions, privilege, and unconscious bias while building their social empathy. This certificate provided various tools and skills to its participants so that they might value diversity, look at the world from another’s perspective, and start a dialogue to promote social change. This case study involved 19 participants. To answer our research questions, we used …

Mental Health Stigma And Law Enforcement Officers, Moses Park

Dissertations

Purpose: The purpose of this phenomenological research was to describe the perception of law enforcement officers (LEOs) about the stigmatizing behavior they experienced from fellow officers in their organization, after they sought mental health services, following a traumatic event they were involved in.

Methodology: The methodology for this research study will be qualitative from a phenomenological perspective. Data was collected via semi-structured interviews with a purposive sample of 12 active and retired LEOs who served in southern California.

Findings: After the analysis, seven major findings were yielded. The major findings of the study are: (a) Within the law enforcement …

Music As A Form Of Therapy In The K-4 Special Education Classroom: A Phenomenological Study, Roger Hattaway

Dissertations

Purpose: The purpose of this phenomenological study was to identify and describe the perceptions of elementary K-4th grade teachers on the effects of music therapy as it pertains to academics and behavioral incidents in the special education classroom (Gooding, 2010).

Methodology: This qualitative study used a phenomenological design to ascertain the perception of the teachers on the impact of music therapy regarding academics of students in the K-4 grade special education classroom. The data were collected using the descriptive narrative to ascertain the perception of the changes in academics and behavior gathered from the interview questions.

Findings: Analysis of the …

Leading For Excellence, Erin Riley

Dissertations

Purpose: The purpose of this mixed methods study is to determine the degree of importance for the 12 step principles of leadership proposed by Harvey, Drolet, and DeVore (2014) to create a K-12 school environment that fosters high student achievement as perceived by public middle school principals. A secondary purpose is to explore and describe the leadership strategies for implementing the 12 step principles of leadership proposed by Harvey, Drolet, and DeVore (2014) to create a K-12 school environment that fosters high student achievement as perceived by public middle school principals.

Methodology: This explanatory mixed-methods study was completed to examine …

Exemplary Latino School District Superintendents’ Use Of Emotional Intelligence As They Lead Their Organizations, Ivan Chaidez

Dissertations

Purpose: The purpose of this qualitative multicase study was to describe the emotional intelligence strategies that exemplary Latino school district superintendents use as they respond to leadership challenges in their school organizations based on Goleman’s (1995) four domains of emotional intelligence (self-awareness, self-management, social awareness, and relationship management). A secondary purpose of the study was for exemplary Latino superintendents to explain how their use of emotional intelligence strategies supported their success and tenure as they responded to leadership challenges in their school organizations.

Methodology: This multicase study was conducted through interviews of five exemplary Latino public school district superintendents in …

Examining The Cross-Cultural Competence Of United States Christian Missionaries Engaged In Developing Indigenous Leaders: A Mixed Methods Study, Craig W. Goodman

Dissertations

For the past two millennia, missionaries have crossed from one culture to another to bring the Christian message to all cultures of the world. Questions about the effectiveness of these mission efforts have been asked and researched by many; however, one key question remains unanswered: what personal attributes help a person to be more competent at crossing cultures as they interact with people from other cultures? Although cross-cultural competence has been studied in a variety of fields over the past 50 years, the models and assessments used have never been applied to Christian missionaries.

To address this deficiency, this parallel …

Black Beyond Measure: An Antideficit Exploration Of Cultural Capital Within A National Society Of Black Engineers (Nsbe) Chapter At A Predominantly White Institution (Pwi), Rhonda Harley

Dissertations

Historically, Black students have been excluded from Predominately White institutions (PWI) longer than welcomed to attend and matriculate (Harper et al., 2009). Due to this lack of inclusion, African American students' educational experiences often center on academic disparities, inequality of opportunity, and under-preparedness in career planning within the American education system. While there has been a fair amount of research on the lack of representation of Black students in the engineering disciplines, the heavy focus on quantitative data offers little insight into the unique ways students succeed and overcome institutional and systemic barriers in pursuit of their degree. Undergraduate experiences, …

Improving The Retention Of United States (U.S.) Government Science, Technology, Engineering, And Mathematics (Stem) Employees, Jeffrey Myers

Dissertations

The U.S. government workforce has been consistently shrinking since a peak in the 1990s. At the same time, the need for technologically-savvy government workers has dramatically risen in this same period. This divergence in the demand for science, technology, engineering, and mathematics (STEM) employees challenges government leaders to retain these highly demanded workers in the public sector.

Decades of psychological research across many industries has investigated what motivates workers and how best to incentivize them to increase productivity. Maslow and Herzberg, among others, theorized that adult workers have both intrinsic and extrinsic needs that drive their behaviors and resultant productivity. …

A Study Of The Challenges Faced By Students Who Identify As Refugees Who Have Experienced Interrupted Education And Trauma, Merdin Mohammed

Dissertations

Every year, more than 65 million people are displaced worldwide. These refugees, asylum seekers, and internally displaced people flee conflict, poverty, environmental degradation, and other conditions forcing them from their homes. In 2020, the number of individuals internally displaced reached 82.4 million; of this total, 26.4 million were refugees. In 2021, of the 11,411 refugees resettled in the United States, 8.6% resettled in California. When refugee students come to San Diego, the majority resettle in the neighborhoods of City Heights and El Cajon. These refugee children have lived on the road or in refugee camps, faced consistent interruptions to a …

Gatekeeping Experiences Latina Superintendents Encountered As They Attained Their Superintendent Position, Julie Corona

Dissertations

Purpose: The purpose of this qualitative multicase study was to describe the career path progression and the gatekeeping experiences as Latinas advanced to a superintendent position. The second purpose of this study was to describe the gatekeeping experiences of Latina superintendents’ application and interview process of their superintendency. Additionally, this study described Latina superintendents’ gatekeeping experiences of gender and ethnicity. Last, this study examined the strategies that Latina superintendents used as they ascended to their superintendent positions. Methodology: This phenomenological multicase study was conducted through interviews of five Latina superintendents of California public schools. The researcher selected a qualitative method …