Digital Commons Network^™

Organic Photocatalysts For Desulfurization Of Fuels, A K M Maksudul Hasan

Master's Theses (2009 -)

Desulfurization of fuels is a critical process for reducing sulfur contents in petroleum-based fuels to mitigate environmental pollution and meet the regulatory standards. Among various pollutants, Sulfur is the deadliest as inhaling leads to coughing, shortness of breath, sinus problem as well as the death of brain cells. Petroleum has a number of organosulfur derivatives, for example in crude oil (0.1 to 6wt% sulfur), which should be removed before using in combustion engines and other applications. High sulfur containing petroleum products used in engines and power plants would lead to the formation of sulfurdioxide (SO2) which would contribute to the …

Machine Learning-Based Determination Of Sex-Related Bladder Cancer Biomarkers, Joseph Pizzi

Theses

Bladder cancer exhibits sex-specific behavior, occurring more frequently in males but progressing to advanced stages more commonly in females. The activation of sex hormone receptors may explain these differences, but the exact genetic drivers remain poorly understood. Furthermore, current bladder cancer biomarkers have inconsistent sensitivities and specificities in practice, making early diagnosis a challenge. This study approaches bladder cancer biomarker discovery through machine learning techniques on gender and disease-stratified RNA-seq data. Training sets limited to differentially expressed genes were subjected to four different feature selection methods: differential gene expression analysis adjusted p-value, recursive feature elimination with support vector machine, logistic …

Mastering The Ppco Framework: A Guide For Evidence-Based Nursing, Mayra Garcia

PPCO Resources & Education

No abstract provided.

The Intermediate State: Scriptural, Philosophical, And Scientific Evidence For Conscious Existence After Death, Timothy R. Perry

Masters Theses

This thesis examines whether Scripture and supporting evidence affirm that believers enter the immediate presence of Christ in a conscious and possibly embodied state prior to the resurrection. It argues that compelling scriptural, scientific, and philosophical evidence supports the doctrine that believers enter the presence of Christ immediately after death, in a conscious and possibly embodied state until the final resurrection. The study employs a multidisciplinary argument drawing upon biblical exegesis, philosophical reasoning, and relevant scientific insights from the emerging field of near-death experiences. This study uniquely frames the intermediate state as an apologetic issue, offering hope to Christians who …

Teachers’ Perceptions Of How Daily Explicit Writing Instruction May Contribute To Early Foundational Reading Skills: A Case Study, Jamie Shenk

Doctoral Dissertations and Projects

The purpose of this single case study was to explore how K-3 elementary teachers’ perceptions of how daily writing instruction contributes to early foundational reading skills. The theories guiding this study were Sweller’s cognitive load study and Bartlett’s schema theory. The central research question was: How do educators perceive connections between an explicit, daily writing approach and its influence on foundational reading skills? A single case study was used for this research in order to focus on K-3 teachers who had completed a one-year study on explicit writing instruction. The participants were 12 K-3 teachers in one Title I school …

Transcriptomic Analysis Of Xeroderma Pigmentosum Group C Skin Samples, Austen N. Gleave

Theses and Dissertations

Xeroderma Pigmentosum is a rare genetic disorder caused by defective DNA damage repair enzymes. This condition results in an increased risk of developing skin cancer and other symptoms in those affected. In this thesis, we examined the effects of Xeroderma Pigmentosum on gene expression in patient skin biopsy samples. To accomplish this, we utilized statistical analysis of spatial transcriptomic and single-cell RNA sequencing techniques to discover differences between patient and heterozygous carrier skin samples. We found that the skin samples from Xeroderma Pigmentosum patients showed elevated levels of inflammation, immune activation, and cellular stress, while the carrier skin samples leaned …

Memphis Street Academy Charter School At J.P. Jone V. Philadelphia School District

2026 Decisions

USDC for the Eastern District of Pennsylvania

Effective Postmerger Strategies To Enhance Shareholder Value In The Banking Industry, Olajide Farouq Adenrele

Walden Dissertations and Doctoral Studies

Bank mergers continue to produce unintended declines in shareholder value, posing risks to financial stability, customer confidence, and long-term competitiveness in the southeastern United States. This challenge is especially critical for senior banking leaders, who must ensure that postmerger activities strengthen rather than undermine institutional performance. The purpose of this qualitative pragmatic inquiry was to examine the business strategies used by bank leaders in the southeastern United States to mitigate the unintended negative effects of postmerger activities on shareholder value. The study, grounded in agency theory, involved six senior bank leaders responsible for merger integration in the region. Data from …

Staff Education To Improve Nursing Knowledge Of Follow-Up Adherence Support Strategies In A Large Outpatient Urology Clinic, Ivette Dieguez

Walden Dissertations and Doctoral Studies

Site monitoring identified inconsistent adherence to scheduled follow-up care as an operational concern, underscoring the need for standardized nursing strategies to enhance follow-up communication. This staff education project aimed to determine whether a focused educational intervention could improve nursing knowledge of adherence support strategies, with confidence measured as a secondary outcome. Guided by the ADDIE instructional design model and the Johns Hopkins evidence-based practice model, the project was implemented in a large outpatient urology clinic with 18 participating registered nurses. Participants completed anonymous paper-based pretests and posttests surrounding a single 45-minute, live group education session. Educational content covered common barriers …

Strategies To Address Employee Shortages In Allied Health, John O. Delozier

Walden Dissertations and Doctoral Studies

Continuing shortages of allied health (AH) workers have become a critical business challenge for health care organizations, driven by an aging population, rising service demand, and the lasting effects of the COVID 19 pandemic. AH leaders remain concerned about meeting essential staffing requirements, as persistent recruitment and retention difficulties threaten the delivery of high-quality health care. Grounded in Herzberg’s two-factor theory, the purpose of this qualitative pragmatic inquiry was to explore strategies successful health care leaders used to recruit and retain skilled AH employees. The participants were seven Maryland health care leaders with experience successfully implementing recruitment and retention strategies …

Administrative Burden: The Hidden Costs Associated With Participating In The Department Of Veterans Affairs’ Disability Compensation Process, Christopher Anthony Campagno

Walden Dissertations and Doctoral Studies

The U.S. Department of Veterans Affairs (VA) has characterized the Appeals Modernization Act (AMA) as a procedural success, citing reductions in remand rates and increases in grant rates. However, VA’s reporting on AMA performance has generally focused on adjudicatory outcomes and has not addressed the administrative burden costs veterans incur while navigating the disability compensation process. Although current scholarship documents administrative burden in other public programs, little empirical work has examined how it manifests in VA’s disability compensation process. The purpose of this general qualitative study was to examine how veterans describe the learning, psychological, and compliance costs they experienced …

Unh Extension Program Partners With Community To Keep New Hampshire Lakes Safe, Scott Ripley

UNH Today Archive

No abstract provided.

The Gut Microbiota Shapes The Human And Murine Breath Volatilome, Ariel J Hernandez-Leyva, Amalia Z Berna, Maggie H Bui, Yang Liu, Anne L Rosen, Michael A Lint, Samantha A Whiteside, Natalia Jaeger, Ryan T Mcdonough, Nikhilesh Joardar, Jesús Santiago-Borges, Christopher P Tomera, Wentai Luo, Audrey R Odom John, Andrew L Kau

2020-Current year OA Pubs

The gut microbiota is crucial to health, yet implementation of microbiota-based therapeutics is limited by the lack of rapid diagnostics. We hypothesize that breath contains gut microbe-derived volatile organic compounds (VOCs) reflecting microbiota composition and metabolism. In healthy children, we found that breath VOC composition (or volatilome), assessed by gas chromatography-mass spectrometry, correlates with gut microbiome composition and function. By capturing exhaled breath from human-stool-colonized and monocolonized gnotobiotic mice, we profiled breath VOCs and discovered that murine breath is also significantly influenced by the gut microbiome. VOCs from cultured gut microbes were identified in vivo in monocolonized gnotobiotic colonized mice. …

Reference Proteins To Improve Core 1 And Core 2 Alzheimer's Disease Csf And Plasma Biomarkers, Linda Karlsson, Nicolas R Barthélemy, Kanta Horie, Suzanne E Schindler, Brian A Gordon, Cyrus A Raji, Tammie L S Benzinger, John C Morris, Randall J Bateman, Et Al.

2020-Current year OA Pubs

Concentration-based fluid biomarkers represent an informative and cost-effective way to detect and monitor Alzheimer's disease (AD) pathology. However, non-AD-related interindividual variation in biofluids can also affect biomarker concentrations. Here, we investigated whether normalization of CSF and plasma biomarkers to reference proteins, such as amyloid-β40 (Aβ40) and non-phosphorylated mid-region tau (np-tau), improves their robustness and reliability of representing AD pathology load. Using the Swedish BioFINDER-2 cohort [n = 1702, 50.7% male, mean (standard deviation) age 68.4 (12.2) years], we compared the associations between tau/Aβ-PET load and fluid biomarkers alone versus biomarkers in a ratio with a reference protein (Aβ40 or np-tau) …

The Impact Of A Mindfulness Meditation Program On Phq-9 Scores In Eskd Clients At The Dialysis Center, Christi Collins Weaver

Student Scholarly Projects

Practice Problem: Patients undergoing hemodialysis for end-stage kidney disease (ESKD) experience high rates of untreated depressive symptoms, which negatively impact quality of life, treatment adherence, and therefore increased hospitalization and higher mortality rates.

PICOT: In adult patients receiving in-center hemodialysis (P), how does the implementation of a structured mindfulness meditation program (I), compared to usual care (C), affect depressive symptoms as measured by the Patient Health Questionnaire-9 (PHQ-9) (O) over an eight-week period (T)?

Evidence: Current literature demonstrates that depression is highly prevalent among individuals with ESKD and is associated with increased morbidity and decreased treatment adherence. Evidence supports mindfulness …

Oxygen Under Pressure: A Comparative Study Of Maximal Oxygen Uptake In Firefighters And Civilians, Jordan N. Hunt

Doctoral Dissertations and Projects

The purpose of this study aimed to investigate and compare V̇O2max levels between firefighters and age-matched individuals from the general population. This study used a quantitative, comparative, cross-sectional design to assess differences in directly measured V̇O2max with a breath-by-breath portable analyzer between firefighters and matched civilians, determine the percentage of firefighters meeting NFPA recommended fitness thresholds, and examine the accuracy of estimated V̇O2max values. A total sample size of 52 participants (26 per group) participated in this study. Firefighters exhibited significantly higher directly measured V̇O2max and V̇O2peak than age-, sex-, and BMI-matched individuals from the general population. Firefighters in this …

The Media's Influence On The Public's Perception Of Police Use Of Force, Kristopher D. Lauro

Doctoral Dissertations and Projects

Police use of force has long been a concern within law enforcement, but in recent decades, it has faced increasing scrutiny from the general public and across all sectors of society, sparking widespread debate on the practice. The rise of body-worn cameras (BWCs) and the prevalence of cell phone recordings of police incidents have amplified attention on the issue. Media representations of police use of force are influential in bringing together or shaping public opinion and often encapsulate ideological biases; the pervasive publicity associated with such incidents provides a unique opportunity for detailed examination of the underlying relationship between media …

A Father To The Fatherless: A Trauma-Informed Care Ministry For Fatherless Fathers, Delmus L. Gillis

Doctoral Dissertations and Projects

This DMIN action research project proposed that the Bethlehem Baptist Church (BBC) did not develop ministries that specifically addressed the persistent unbiblical endemic of fatherlessness within its congregation. The initial tragedy of fatherlessness can be transformed into the beautiful design of godly families when proper attention is given to the root cause of damaged relationships and effective means of correcting abnormalities are properly instituted in the church. Therefore, the researcher created the Trauma-Informed Care Ministry for Fatherless Fathers to guide fathers who experienced fatherlessness into a biblical model of fatherhood. When the church remains silent on important matters of faith, …

Sexual Scripts In Conflict: Does Religiosity Moderate The Relationship Between Pornography Use And Permissive Sexuality?, Alex D. Castaneda

Doctoral Dissertations and Projects

The sexual script acquisition, activation, and application model (3AM) posits that viewing pornography leads to the internalization of the scripts implicitly and explicitly depicted. Recent research indicates that pornography viewing is associated with more permissive sexuality. Religious individuals, especially conservative Christians, report greater distress from their pornography use, and research has investigated the role of religiosity in pornography-related outcomes. Religiosity has been shown to protect against pornography exposure and buffer against the internalization of the pornographic script. Sexual script theory posits that individuals with existing scripts that are more deeply held will be less susceptible to new, contradictory scripts. This …

A Qualitative Phenomenological Study Of African American Millennial Couples' Perceptions Of Dual Trauma And The Impact On Marital Satisfaction, Christopher Ray Merrell

Doctoral Dissertations and Projects

The purpose of this phenomenological study is to describe African American millennial married couples’ experiences with unresolved trauma in the North Texas Region, Texas. The theory guiding this study is John Bowlby’s Attachment Theory. Multiple traumatic experiences and relationship fractures that inhibit marital satisfaction among African American millennials are also examined. Trauma, viewed from a generalized perspective and conceptual form, is defined as an uncontrollable and sudden event with highly adverse outcomes that may persist. Among African Americans, trauma from interpersonal distress, historical events, racial barriers, and socioeconomic stressors often hinders the pursuit of healthy marriages. This study examines millennial …

A Phenomenological Study Of Thai Adult Christians’ Experiences Of A Secure Attachment To God, Sujirat Sirichai

Doctoral Dissertations and Projects

The purpose of this phenomenological study was to describe Thai adult Christians’ experiences of developing a secure attachment to God. Many Thai children experience insecure attachments with their primary caregivers and attachment trauma. This study was guided by attachment theory to examine how attachment to primary caregivers, life crises, and relational and spiritual factors influenced the development of a secure attachment to God. This research used a transcendental phenomenological approach with a snowball sample of eight Thai adult Christians who demonstrate a secure attachment to God. Data collected through semi-structured interviews were analyzed through coding. Data analysis revealed six themes …

Understanding Servicewomen's Barriers Experienced Throughout Military Sexual Assault Help-Seeking Process: A Phenomenological Study, Brittany Rae O'Leary

Doctoral Dissertations and Projects

The purpose of this phenomenological study is to understand the current barriers experienced by women MSA victims throughout their help-seeking process of unrestricted reports through the institutional blindness and social-ecological model theories. Furthermore, the victims’ perception of the organizational climate’s influence on the help-seeking process, including command support and the judicial component of unrestricted reports, and the victim’s desire to seek additional military-setting services are also examined. Inductive coding and thematic analysis will be used to identify any reoccurring patterns experienced amongst the participants. The theories guiding this study are Meyer, Rowan, and Freyd’s institutional blindness and Bronfenbrenner’s social-ecological model …

The Impact Of Transformational Leadership Tenets On The Soft Skills And Self-Efficacy Of Individuals From A Performing Arts Program: A Phenomenological Study, Carissa Hawksworth

Doctoral Dissertations and Projects

The purpose of this qualitative hermeneutic phenomenological study was to understand the lived experiences of university students who develop soft skills and self-efficacy while working with a director who utilizes transformational leadership qualities to direct a performing arts event. The theory guiding this study was Bass’s theory of transformational leadership, which encourages leaders to develop as individuals, thereby enhancing the performance of the entire group. The central research question was, “What are the lived experiences of university students who participate in a performing arts program led by a transformational leader?” This qualitative, hermeneutic phenomenology study focused on understanding the lived …

A Qualitative Study Of The Uses And Gratifications Theory In Tiktok’S Short-Form Video Influence On Users Behaviors And Motivations Among Young Adults In The Commonwealth Of Pennsylvania, Jonathan V. Robertson

Doctoral Dissertations and Projects

This qualitative dissertation explored the TikTok consumption and engagement behaviors of young adults aged 18-25. The TikTok social media platform is well-known for its active community of content creators producing high-quality, short-form, eye-catching video content. These videos are tailored to individuals' personal interests, beliefs, and values, shaping users' daily lives. Alternative social media platforms offer similar capabilities; however, they fall short of TikTok's powerful algorithm. The uses and gratifications theoretical framework were specifically selected to help understand why young adults engage with TikTok, how their unique motivations shape their engagement behaviors, and the role TikTok plays in identity development. The …

Integrating Cognitive Behavioral Therapy And Biblical Principles In Curriculum: A Phenomenology Of Christian Educators' Mental Health Instruction, Keri Mankos

Doctoral Dissertations and Projects

The purpose of this qualitative phenomenological hermeneutical study was to explore the experiences of Christian K-12 educators who are in instructional roles who integrated cognitive-behavioral therapy techniques with a biblical worldview in their curriculum design and instructional practices at three Christian K-12 schools in the Eastern United States. The integration of a biblical worldview and cognitive behavioral therapy techniques was generally defined as using biblical principles to help students change their thoughts and behaviors to improve mental health. This study examined how educators incorporated biblical principles into the design and delivery of academic courses, such as mental health education and …

Instructors' Lived Experiences Of Using Authentic Assessments In College Calculus Courses Across The United States: A Phenomenological Study, Christy Hart Kains

Doctoral Dissertations and Projects

The purpose of this transcendental phenomenological study was to describe the lived experiences of instructors with authentic assessments in college calculus courses across the United States. The theory guiding this study was Astin’s student involvement theory, which provided a framework to study the involvement of students in higher education. The central research question for this study was: What are the lived experiences of instructors who utilize authentic assessments in college calculus courses across the United States? This study used a qualitative design following the transcendental phenomenological approach of Moustakas. The sample included 12 instructors from two-year and four-year colleges in …

An Examination Of Cumulative Exposure To Potentially Traumatic Events And Identity Distress In Emerging Adults: The Influence Of Life Stressors, Posttraumatic Stress Symptoms, And Event Centrality, Kane Richard Vest

Doctoral Dissertations and Projects

Plentiful research has been conducted to examine the negative outcomes of exposure to potentially traumatic events (PTEs). Together, findings have indicated that certain exposures increase the risk of posttraumatic stress symptoms (PTSS) and adjustment problems in children, teens, and young adults. However, few studies have specifically focused on the influence of such experiences on the development of identity distress in emerging adults, and even fewer have examined such influence in the context of exposure to multiple potentially traumatic events. Exposure to natural hazards such as the COVID-19 pandemic and hurricanes is known to impact economic, social, and educational outcomes, but …

Inmate Reentry: Success Through Faith - A Mixed-Methods Study On Inmate Conversions And Life After Release, Eric S. Campbell

Doctoral Dissertations and Projects

This dissertation-in-praxis (DiP) explored the circumstances surrounding the emotional responses and past traumatic experiences that led inmates to commit their lives to Jesus. The DiP also researched the high rate of recidivism amongst released inmates. The researcher partnered with Reach the Forgotten Jail Ministry (RTF), as well as local churches, in an effort to create a program that would work with inmates prior to and after release. The qualitative study established a paradigm highlighting the significance of comprehensive leadership training in a time of transition by drawing upon transformational leadership theory, adaptive leadership theory, as well as servant leadership theory. …

Morality Meets Education: Transactional And Transformational Leadership Of Business Students, Arthur L. Conyers

Doctoral Dissertations and Projects

In an era where ethical failures in business can destabilize markets and damage public trust, understanding how future leaders develop moral clarity is becoming increasingly urgent. Transformational leadership highlights relational influence and purpose, while transactional leadership provides structural clarity that supports organizational operations. Morality, broadly defined as adherence to a standard of righteousness, remains essential for leadership in commerce, policy, and organizational contexts. This qualitative phenomenological study looked into how business and management students experience leadership development, moral decision-making, and faith integration in their academic and personal lives. Students enrolled in accredited colleges and universities were interviewed, and transcripts were …

The Shift In Stakeholder Attitudes Regarding The Importance Of Membership In American Evangelical Churches, Michelle Watts

Doctoral Dissertations and Projects

The relationship between members' perceived benefits and attendance frequency in American evangelical churches was examined using a quantitative correlational design grounded in social Exchange Theory and the Flywheel Model. Declining attendance presents ongoing organizational challenges for American evangelical churches. Using a fixed correlational research design, data were collected via an online survey administered to adult evangelical church members across geographic regions, education levels, ages, genders, and urban areas. The survey included the established and adapted Perceived Organizational Support Scale and the Perceived Relational Benefit Scale. Statistical analyses included descriptive statistics, reliability analysis, correlation analysis, multiple regression, and hierarchical regression to …