Digital Commons Network^™

Openness To Experience And Creative Capacity Among Active First Responders, William Reagan

Walden Dissertations and Doctoral Studies

Because emergency services demand adaptive, creative problem-solving within procedurally rigid cultures, this study examined whether Openness to Experience predicted creative capacity among active first responders and whether age or tenure moderated that relationship. A cross-sectional design used N = 117 first responders from eight agencies. Openness was measured with the Big Five Inventory-2 (percentile ranks); creativity was assessed with the Divergent Association Task (DAT; n = 116) and the Consensual Assessment Technique (CAT; n = 111). Covariates were age, tenure, rank, gender, and, for 46 participants at one agency, a dispatch-derived operational exposure score. In the full sample, Openness did …

Addressing Implicit Bias Toward Patients With Substance Use Disorders Through A Staff Education Quality Improvement Initiative, Jeanne Baleng Okuwobi

Walden Dissertations and Doctoral Studies

This doctoral project was a staff education quality improvement (QI) initiative designed to reduce implicit bias among healthcare providers toward patients with substance use disorder (SUD) at a community mental health center. Provider implicit bias toward patients with SUD contributes to stigma, inequitable care, reduced treatment engagement, and poorer health outcomes; addressing this bias is essential to advancing patient safety, health equity, and quality nursing care. The practice-focused question guiding this project asked whether a 9-week evidence-based staff education program incorporating didactic instruction and reflective practice would reduce provider implicit bias toward patients with SUD compared with current practice, which …

Local Farming Sustainability Nongovernment Organization’S Perceived Driving Forces For A Crisis Management Plan, Nthonoki Cynthia Tsepe

Walden Dissertations and Doctoral Studies

Nongovernmental organizations (NGOs) operate in increasingly volatile environments characterized by financial uncertainty, political pressures, and climate-related disruptions; however, many lack formalized crisis management systems. The absence of structured crisis governance exposes organizations to operational instability, financial risk, and reputational damage. The purpose of this qualitative force field analysis study was to explore a local farming sustainability NGO’s perceived driving and restraining forces for developing a formal crisis management plan. Guided by Burnett’s crisis management model and Lewin’s force field analysis framework, data were collected from nine organizational leaders involved in governance and operational decision making. Round 1 included open-ended online …

Strategies For Reducing Employee Turnover In Retail Business, Mia Bulger

Walden Dissertations and Doctoral Studies

Strategies for Reducing Employee Turnover in Retail Business by Mia S. Bulger MS, University of Phoenix, 2022 BS, Clark Atlanta University, 2005 Qualitative Pragmatic Inquiry Business Research Project Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Business Administration Walden University August 2026

African American Fathers’ Experiences Of Emotional Distress Within The Context Of Black Masculinity After Their Children’S Autism Diagnosis, John Notice

Walden Dissertations and Doctoral Studies

Although parental experiences following a child's autism spectrum disorder (ASD) diagnosis have been examined, mothers’ experiences have garnered the most exploration, with comparatively less attention given to fathers’ experiences. There was a gap in knowledge, in particular, on how African American (AA) fathers experience their children's ASD diagnoses while navigating emotional distress within the context of Black masculinity. The purpose of this generic qualitative study was to explore how AA fathers experienced their children's ASD diagnoses while navigating emotional distress within the context of Black masculinity. Crenshaw's intersectionality theory served as the conceptual framework. Data were collected by conducting semistructured …

Youth With Mental Illness Transitioning Into Adult Judicial Systems, Susan K. Beltran

Walden Dissertations and Doctoral Studies

Despite attempts to alleviate the issues of recidivism in juveniles, this issue continues to have a major impact on young adults suffering from mental health challenges. Criminal justice involvement continues to present significant challenges for individuals with behavioral health disorders, underscoring the need to identify factors associated with arrest to inform prevention and intervention efforts. The purpose of this quantitative study was to determine the relationship between recidivism and the age of first arrest, gender, and psychiatric diagnosis for youths in an adult facility. The current study used data from the Northwestern Juvenile Project, with a sample size of N=1829. …

Staff Education For Medication Adherence Among Adults With Major Depressive Disorder In A Private Outpatient Psychiatric And Mental Health Practice, Judith Timbui Eta

Walden Dissertations and Doctoral Studies

This Doctor of Nursing Practice (DNP) project implemented a staff education initiative to improve medication adherence among adults with major depressive disorder (MDD) in a private outpatient psychiatric and mental health practice. Medication nonadherence remains a significant barrier to effective depression treatment and is associated with symptom relapse, increased healthcare utilization, and poorer patient outcomes. Evidence supports provider education as an effective strategy for improving adherence-related practices. The project examined whether a targeted educational intervention could improve staff knowledge and confidence in promoting medication adherence over a 12-week implementation period. Guided by the Johns Hopkins Evidence-Based Practice Model and the …

Registered Nurses’ Knowledge, Self-Efficacy, And Willingness To Assess Near-Fatal Strangulation: Development Of The Near-Fatal Strangulation Self-Efficacy Scale, Morgan Kenady Mcmahon

Walden Dissertations and Doctoral Studies

Near-fatal strangulation (NFS) is a time-critical clinical presentation associated with elevated risk of stroke, delayed airway compromise, and future intimate partner homicide, yet no validated instrument existed to assess nurses' NFS-specific knowledge or self-efficacy. The purpose of this cross-sectional study, guided by Bandura's social cognitive theory and Benner's novice to expert theory, was to develop and pilot test the Nurses' Near-Fatal Strangulation Self-Efficacy Scale (NFS-SES) and to examine whether knowledge and self-efficacy predicted nurses' willingness to conduct an NFS assessment. A convenience sample of 150 registered nurses in emergency, labor and delivery, and obstetric emergency departments completed the NFS-SES, a …

Teachers’ Perspectives About Early-Career Implementation Of Culturally Responsive Teaching Practices In Secondary Science Classrooms, Nicole D. Wilson-Pringle

Walden Dissertations and Doctoral Studies

The problem that was addressed through this study was that little was known about how secondary science teachers use their training to implement culturally responsive teaching practices (CRTPs) during their early careers in classrooms with diverse student populations. Grounded in the culturally relevant pedagogy and the teacher identity development frameworks, the purpose of this basic qualitative study was to explore secondary science teachers’ perspectives on the use of their training to implement CRTPs during their early careers in classrooms with diverse student populations. Data were collected through semistructured interviews with 10 middle and high school science teachers who received certification …

Closing Boston's Pediatric Asthma Equity Gap Through Housing-Integrated Care, Valeria Miranda

Capstones

Asthma morbidity is disproportionately high for preschool-age children (2-5 years) in Roxbury, Dorchester, and Mattapan neighborhoods of Boston owing to poor housing conditions and a lack of coordination between housing remediation and healthcare systems. Data at the neighborhood level indicate rates of (0-17) emergency department visits as high as 144.1 per 10,000 in Mattapan, compared to 15.0 per 10,000 in West Roxbury, where Black children have emergency department visit rates that are 6.9 times more than the rates for White Children across the city (Boston Public Health Commission, 2023). Additionally, Community Health Worker (CHW)-led home visiting with environmental trigger remediation, …

Closing On The Cardiovascular Disparity Among Black Adults In Boston Through Church-Based Community Health Worker Intervention, Ana Porfirio

Capstones

Hypertension and cardiovascular disease disproportionately affect Black adults age 40 and older in Boston's Roxbury, Dorchester, and Mattapan neighborhoods, as heart disease mortality is three times higher among blacks than whites across Boston, and premature death rates are over twice as high in Dorchester and Roxbury as in richer neighborhoods. Historic redlining contributes to barriers in food access and is one factor behind Mattapan's highest age-adjusted mortality rate from heart disease in the city. These brief outlines a culturally concordant church-based Community Health Worker (CHW) intervention that includes a trained CHW who assists adults with uncontrolled hypertension in managing their …

Orval Filbeck Collection, 1897-2001, James Orval Filbeck

Center for Restoration Studies Archives, Manuscripts and Personal Papers Finding Aids

No abstract provided.

Probable Renal-Limited Sarcoidosis Presenting With Tubulointerstitial Nephritis Without Granulomas On Renal Biopsy: A Diagnostic Challenge, Jawahar Hamood Alnoumani, Muhammad Shoaib, Asma Marzouqi, Ali Al Lawati

Sultan Qaboos University Medical Journal

Sarcoidosis is an idiopathic multisystem inflammatory disorder characterised by non-caseating granulomas and a wide range of reported prevalence. Renal-limited sarcoidosis is a rare manifestation of sarcoidosis which remains a diagnostic challenge due to lack of extra renal manifestation and specific diagnostic criteria. We report a 37-year-old man who presented to a tertiary care hospital, Muscat, Oman, in 2024, with a two-month history of fever, weight loss, hypercalcaemia, high-to-normal 1,25-Vitamin D, high angiotensin-converting enzyme levels and acute kidney injury. His renal biopsy showed evidence of tubulointerstitial nephritis without granulomas or nephrocalcinosis. After exclusion of infectious, malignant, drug- related and autoimmune causes, …

Welcome Back! Start The Academic Year With The Tmc Library, Stefanie Lapka

TMC Library Newsletter (2015-)

Welcome to a new academic year! Whether you're beginning a new semester, continuing your work, or joining the TMC community for the first time, the TMC Library is here to support your learning, teaching, research, and professional work.

Ready to get started? Rediscover what the TMC Library can do for you and explore our services today.

Virtual Lunch And Learn: Refresh Your Library Toolkit, Stefanie Lapka

TMC Library Newsletter (2015-)

You might not need a new lunchbox, but everyone can use a refreshed set of resources! Join us for our August Lunch & Learn, Get into a "Back to School" State of Mind with the TMC Library, and explore how the Library can support you at every stage of your career.

Let's make this your most efficient year yet! Register to attend this virtual session!

From The Archives: Houston's Pharmaceutical Past, Kelsey Koym

TMC Library Newsletter (2015-)

Step back into Houston's early pharmaceutical history with the McGovern Historical Center's newest collection, the Houston Drug Company Records.

Explore the story behind the collection and how these records found their way to the McGovern Historical Center: The Houston Drug Company Records

New Publishing Benefit For Tmc Authors: Mdpi, Joanne Romano

TMC Library Newsletter (2015-)

Publishing with MDPI? TMC-affiliated authors can now take advantage of new benefits through MDPI's Institutional Open Access Program (IOAP), including a discount on article processing charges (APCs) when publishing in MDPI journals.

Planning to publish? Learn more about the MDPI author benefit and how to take advantage of your TMC affiliation: Publishing Support at the TMC Library: MDPI

Heartland Virus Preclinical Research Project, Brian B. Gowen

Funded Research Records

No abstract provided.

Star Anise's Shield: How Illicium Verum Protects Dna From Oxidative Damage: An Integrated Experimental And Computational Study, Rafeef Amer Abdul-Jabar, Sabaa Ali Mohammed Al. Fadal, Anwar H. Ali

Baghdad Science Journal

Illicium verum, a star anise evergreen tree, is of great ethnopharmacological, medicinal, and biological interest. Objective: To develop an aqueous extract from its fruits and to evaluate its antioxidant potential, particularly in terms of DNA protection. The extraction method was straightforward; total phenolics (123 mg GAE/g) and flavonoids (51.3 mg QE/g) were quantified, and antioxidant (DPPH radical scavenging and iron (III) reducing) properties determined. The total antioxidant capacity (TAE) of the extract was estimated, and its protectiveness on human genomic DNA was examined. In addition, an in silico computer docking simulation was conducted to describe the molecular interactions of …

Monitoring Of Plankton And The Symbiosis In Maintaining Fertility In Tropical Water, Luthfiana Aprilianita Sari, Fio Surya Pratama Semendo Panhar, Naufal Falatehan, Fitrul Azizi Firdaus, Octavia Kartika Sari, Nurul Ashikin Abdullah, Felipe Polivanov Ottoni, Sulastri Arsad, Veryl Hasan, Syifania Hanifah Samara

Baghdad Science Journal

Plankton serve as live food for aquatic organisms and are indicators of water fertility, which is related to its abundance and diversity. Some live feeds also form a symbiotic relationship with macroalgae, known as epiphytic plankton, which is found in estuarine waters. The Brondong estuary area, Brondong District, Lamongan, East Java, with abundant Caulerpa sp. macroalgae, exemplifies these characteristics. This study aimed to identify the abundance, diversity, uniformity, and dominance indices of zooplankton, epiphytic microalgae, phytoplankton, and chlorophyll a in the Brondong estuary. Given that research on identifying epiphytic plankton species attached to Caulerpa sp. is lacking, this study investigates …

Diagnostic Assessment Of Blood Parasites In Tick-Infested Horses (Ixodidae In Iraq: A Comparative Survey Between Microscopic Inspection And Elisa Technique, Wasan Addai Al-Marsomy

Baghdad Science Journal

Ticks (Ixodidae) are a major vector for many parasites that cause considerable diseases in horses; the most prominent are tick fever or bloody urine fever, which is caused by Babesia or Piroplasmosis, which is found inside red blood cells, leading to blood loss or hemolytic anemia, or Theileria parasite, affecting lymphocytes and erythrocytes, and other parasites, such microorganisms negatively impact in immunity of equines. This study involved the collection of blood samples (75) from horses; samples were divided into two groups: the first group (40) cases infested with a tick parasite and the second group (35) healthy horses. Specimens were …

Dung Removal And Tunneling Contributions: Ecomorphological Traits And Functional Performance Of Onthophagus Gazella And Onthophagus Ramosellus, Takhmina Nazir, Mubashar Hussain

Baghdad Science Journal

Dung beetles perform various functions in ecosystems, such as nutrient cycling, aeration of soil, and dung burial activities that increase soil properties. Genus Onthophagus is well known for its role in dung removal and decomposition. We appraised the role of Onthophagus ramosellus and Onthophagus gazella in dung removal under field conditions. Species-specific functional features like body size and dry body weight associate these dung beetle species with tunneling depth and dung removal. We installed mesocosms (18 cm height and 12 cm diameter) at three sites in district Gujrat, i.e., Chak, Chopala, and Kot Mir Hussain. Treatment groups used in the …

Phytochemical Screening And Antioxidant Potential Of Glycyrrhiza Glabra L. Extract And Silver Nanoparticles Against Aspergillus Spp., Sakar Abdulqadr Saheed, Badr Qader Ismael

Baghdad Science Journal

Medicinal plants continue to be a source of antifungal agents, and the green synthesis of nanoparticles has enhanced the bioactive potential of Glycyrrhiza glabra L. In the present study, ultrasonic-assisted chloroform- and ethanol-extracted leaves & roots were prepared, whereas aqueous extracts were used for green synthesis of Ag NPs. Phytochemical evaluation of the extract showed the availability of terpenoids, phenols, flavonoids, tannins, saponins, and resins. Formation of Ag NPs was confirmed by a UV–Vis plasmon resonance peak at 400–438 nm, FT-IR functional groups (O–H, C=O, and C–N), spherical morphology from FE-SEM, EDX signal of silver atoms, and fcc planes in …

Molecular Characterization And Genotypic Distribution Of Hepatitis B Virus Isolates In Iraq: Prevalence Of Drug Resistance Mutations, Omar Hamid Salman, Raghad Harbi Al-Azzawi

Baghdad Science Journal

Hepatitis B virus (HBV) remains one of the most pervasive viral threats worldwide, posing a significant risk to millions. Due to the absence of proofreading activity during reverse transcription, HBV exhibits a high genetic variability. To date, ten distinct HBV genotypes have been identified globally, associated with varying disease outcomes, including progression to cirrhosis and carcinoma, as well as responses to antivirals. Consequently, genotypic analysis and molecular characterization of HBV are critical for optimizing therapeutic strategies. This study aimed to investigate the distribution of HBV genotypes among Iraqi patients and to characterize their molecular profiles. Therefore, a modified protocol was …

The Cul-De-Sac Paradox: The Relationship Between Walkability, Playability, And Children’S Physical Activity, Lydia Reader

McKelvey School of Engineering Graduate Student Theses & Dissertations

Walkability and playability are two constructs on how the built environment can support physical activity, the former most relevant to adults and the latter designed with children in mind. There are concerns that walkability and playability are intrinsically in competition with one another, with urban forms supportive of physical activity for adults detrimental toward the physical activity of children and vice versa. This thesis explores this conflict using agent-based modeling as a tool for refining the theoretical constructs behind playability and children’s physical activity. We examine the state of the current evidence for the relationship between walkability and children’s physical …

Data-Driven Staging Of Neurodegenerative Pathology Related To Alzheimer’S Disease, Thomas Earnest

McKelvey School of Engineering Graduate Student Theses & Dissertations

Alzheimer’s Disease (AD), the most common cause of dementia, is a dual proteinopathy exhibiting deposits of extracellular amyloid-beta (Aβ) and intracellular tau in brain tissue. Models which describe the spatial and temporal trajectories of these pathologies have been invaluable for understanding AD and have the potential to support diagnosis, disease monitoring, and treatment development. Disease staging systems, which provide protocols for assessing individual disease severity based on their extent of brain pathology, have been crucial for explaining and diagnosing AD. However, these systems have been primarily informed by post-mortem histological assessments and are not directly applicable to disease assessment in …

Unpacking Treatment Effect Heterogeneity In A Large-Scale Dropout Prevention Experiment, Thomas Dee, Chloe R. Gibbs, Rebecca Margolit-Chan, Lillian Morrell, James X. Sullivan

Upjohn Institute Working Papers

Timely high school completion is a critical step in successful transitions to post-secondary schooling and the labor market. This randomized controlled trial, deployed in two urban, disadvantaged school districts, tests the effectiveness of a mature and comprehensive student-support program on an unusually large scale (n=2,528). While overall effects on graduation rates are small and statistically insignificant, exploratory analyses reveal notable variation by site and over time, mirroring heterogeneity in treatment timing and program implementation. These findings highlight the challenges of scaling interventions and raise concerns about generalizing results from small-scale, single-site evaluations.

Ulcerative Cutaneous Sarcoidosis Without Systemic Involvement: An Isolated Presentation, Kayla Brockmeyer, Simona A. Alomary, Ananya Udyaver, Lauren Banner, Alessio Gianni, Sweta Subhadarshani

Department of Dermatology and Cutaneous Biology Faculty Papers

No abstract provided.

Double-Port Totally Endoscopic Mitral Valve Replacement Through A Prosthesis-Sized Working Incision With Posterior Subvalvular Preservation, Cao Dang Khang, Tran Duc Quang, Phan Quang Thuan, Vuong Ngoc Minh, Pham Tran Viet Chuong, Nguyen Hoang Dinh

Journal of the Saudi Heart Association

Objective: To evaluate the feasibility and early outcomes of totally endoscopic non-robotic mitral valve replacement using a double-port DCT approach with posterior subvalvular preservation.

Methods: In this single-center retrospective observational study, 76 consecutive patients underwent totally endoscopic non-robotic mitral valve replacement between November 2023 and December 2025. The DCT approach was defined by exclusive endoscopic visualization, no rib spreading, a camera port and prosthesis-sized working incision placed in the same intercostal space, and thoracoscopic intracardiac instrumentation. Posterior ventricular-annular continuity was preserved whenever feasible by posterior leaflet preservation, native chordal preservation, or artificial chordal reimplantation after leaflet resection. Outcomes were reported …

Racial Trauma And Posttraumatic Growth: Implications For Counselors, Margaret M. Poandl, Nowoola Awopetu, Paul C. Harris Dr.

Journal of Counselor Preparation and Supervision

Racial trauma is ubiquitous among Black, Indigenous, and People of Color (BIPOC) and people who belong to other marginalized groups. It is likely that counselors will work with individuals who have experienced racial trauma. Aligned with the counseling profession’s values, counselors can take a strengths-based approach that incorporates facilitation of a historical trauma posttraumatic growth (HT-PTG) framework. This paper presents evidence-informed practices that can foster growth on individual and collective levels. A case example is provided that integrates individual- and collective-level interventions bidirectionally, along with implications for counselor training pedagogically, through supervision, and continuing education. Counselors can identify, encourage, and …