Digital Commons Network^™

Predicting Utilization Of Mental Health Services Among Undergraduate Nursing Students On College Campuses In The Mississippi Delta, Deidra Michelle Byas

Walden Dissertations and Doctoral Studies

Over recent years, concerns about the mental health of nursing students in the Mississippi Delta have increased. However, research indicated that many nursing students do not utilize mental health services. This population has received little research attention, creating a gap in the literature and leaving counselor educators and supervisors ill-equipped to prepare counselors to meet the needs of nursing students. This quantitative study examined whether attitudes toward mental health services, social and cultural stigmas, and demographic characteristics explained the variance in nursing students’ willingness to seek help. Guided by the Theory of Planned Behavior, the study focused on three areas: …

A Content Analysis Of Podcasts Exploring The Experiences Of Nba Players And Mental Health, Joanna D. Hedin

Walden Dissertations and Doctoral Studies

Black male athletes are at a greater risk of not seeking treatment for their mental health issues due to cultural stigmas and expectations. The purpose of this qualitative secondary data research study was to understand the experiences of Black NBA players regarding their mental health and the sociocultural factors that influence their decision making regarding participation in mental health services, as revealed through podcast appearances. Vygotsky’s sociocultural theory was applied in this study to suggest that learning is an integral part of the social process and that culture contributes to how and what one learns. This study asked about what …

Difference In High School Geometry End-Of-Year State Exam Scores Between Three Different Retake Time Frames, Christina Noel Walton

Walden Dissertations and Doctoral Studies

A grading policy was implemented in a Northeastern suburban public school district that left it to curriculum teams to define the amount of time between the original test and its retake resulting in a slight decrease in high school students’ geometry end-of-year state exam scores. Guided by Bloom’s theory of mastery learning, the purpose of this quantitative causal-comparative study was to investigate if there were statistically significant differences between high school students’ geometry end-of-year state exam scores or between high school students’ geometry math growth scores when controlling for the preassessment score differentiated by three schemes of retake timing: short-term, …

Strategies To Use Diversity, Equity, And Inclusion Programs To Increase Employee Performance And Profitability, Kecia Bailey Alexander

Walden Dissertations and Doctoral Studies

A lack of effective strategies for implementing diversity, equity, and inclusion (DEI) programs to increase employee performance and profitability is a concern for leaders in the education industry. This problem is significant to educational leaders because, without effective strategies for implementing DEI programs, they cannot address the gap in practice that hinders improvements in employee performance and organizational profitability. Grounded in Ajzen’s theory of planned behavior, this qualitative pragmatic inquiry identified and explored the effective strategies educational leaders used to successfully implement DEI programs to increase employee performance and profitability. Participants were six leaders from both for-profit and non-profit educational …

Ski Resort Cybersecurity, Nathan Clark

All Student Scholarship

By comparing ski resorts to other industries, such as beach resorts, infrastructure, and live events, this study aims to establish a foundation of understanding for ski hills. Through an analysis of data collected from state-level data breach lists and corporate filings required by the SEC, the study utilizes this broader scope to identify the primary cyber concerns facing the ski industry. The study aims to identify the unique cybersecurity challenges faced by ski resorts and compare them in terms of security concerns with those in large-scale events and the tourism industry.

Adapting Publishing Principles And Best Practices For Repository-Hosted Journals: Sustainable Ideas For Enhancing Local Open Access Publishing, Andrea A. Wirth

Library Faculty Research

This poster addresses the question: How can librarians and administrators working with repository-hosted journal editors incorporate best practices into hosted journals without taking on the role of publisher and without overextending themselves?

The "Principles of Transparency and Best Practice in Scholarly Publishing" (COPE, DOAJ, OASPA, WAME, 2022) provides foundational guidance for journal publishing. The guidelines cover a robust suite of topics such as authorship, peer review, funding sources, author cost transparency, and licensing and copyright. Publishers with staff who support a suite of journals (whether 10 or 1000) may be able to evaluate and adopt such guidance relatively quickly and …

Anti-Tumor Activity Of Camptothecin Analog Conjugate Of An Rspo4-Based Peptibody Targeting Lgr4/5/6 In Preclinical Models Of Colorectal Cancer, Yukimatsu Toh, Ling Wu, Jianghua Tu, Zhengdong Liang, Adela M Aldana, Jake J Wen, Li Li, Sheng Pan, Julie H Rowe, Martha E Hensel, Carolyn L Hodo, Rick A Finch, Kendra S Carmon, Qingyun J Liu

The Brown Foundation: Institute of Molecular Medicine

Background: Antibody-drug conjugates (ADCs) are a significant advancement in targeted cancer therapy, but none are approved for colorectal cancer (CRC). LGR4/5/6, highly expressed in most CRCs, are promising targets. While LGR5-targeting ADCs show strong anti-tumor effects, their efficacy is limited by LGR5 loss in some CRC cells. RSPO4, a natural ligand for LGR4/5/6, binds all three receptors with high affinity. This research develops RSPO4-based peptibody drug-conjugates (PDCs) to simultaneously target LGR4/5/6, offering a novel therapeutic approach for CRC.

Methods: LGR4/5/6 expression in CRCs was analysed using RNA-seq datasets and Western blot. Peptibody binding affinities were measured, conjugated to camptothecin analog, …

Insights Regarding The Role Of Administrative Support And Teacher Retention In A Suburban Arizona School District, Kristen Louise Tiffany

Walden Dissertations and Doctoral Studies

The problem that was addressed through this study is that teachers are leaving the profession in an Arizona high school district (AHSD, a pseudonym), which might be due to a lack of administrator support. The purpose of this basic qualitative study was to explore teachers’ perceptions of reasons they chose to remain in their positions as well as administrators’ perceptions on the support they provide to encourage teacher retention at AHSD. Grounded in Bandura’s social cognitive theory, semistructured interviews were conducted with six administrators and 10 teachers from AHSD. Saldana’s pattern coding was used with the following themes emerging: Teachers …

Reconciling Harm Reduction Philosophy And Approaches Among Abstinence-Only Substance Abuse Treatment Professionals, Amy Rose Ashton-Williams

Walden Dissertations and Doctoral Studies

Historically, substance use disorder (SUD) treatment in the United States has been firmly grounded in abstinence-only treatment approaches. Harm reduction as a treatment model has gained additional traction. With increased rates of opioid use, overdoses, and advancements in medications for SUDs, harm reduction treatment approaches are becoming more important to improve lives of people who use drugs. Little is known about how counselors who have been educated, trained, and deliver abstinence-based SUD treatment reconcile use of harm reduction into their practice. To address this gap in literature, a generic qualitative study was conducted using the social constructivism theory. A purposive …

Enhancing Social Determinants Of Health Education In Home Health Care Including Social Determinants Of Health In Assessments And Care Plans For Home Health Clinicians, Emilia Mbanwite

Walden Dissertations and Doctoral Studies

This staff education-focused doctor of nursing practice (DNP) project addressed the critical practice problem of one southern health care facility staff’s knowledge on the integration of social determinants of health (SDOH) into home health care plans. Despite SDOH screening, clinicians lacked standardized training to effectively assess and intervene on factors such as housing, transportation, and food insecurity, contributing to preventable hospitalizations, particularly in vulnerable populations. The practice-focused question addressed whether an evidence-based education module could improve home health nurses’ knowledge and application of SDOH in assessments and care plans. The project’s purpose was to develop, implement, and evaluate this training …

A Potential New Sea Surface Temperature Proxy Based On Isomeric Highly Branched Isoprenoid Lipid Biomarkers: Ez25, Simon T. Belt, Lukas Smik, Katrine Husum, Jochen Knies

School of Geography, Earth and Environmental Sciences

Two tri-unsaturated and isomeric (E/Z) highly branched isoprenoid (HBI) diatom lipid biomarkers were quantified in 228 water column samples collected from the English Channel, West Svalbard (Arctic), the Scotia Sea (Southern Ocean) and East Antarctica. We found that the relative amounts of the two HBIs correlate well with water temperatures taken at the time of sampling. Based on these findings and some other HBI data reported previously, we suggest that the proportion of the HBI E-isomer (termed EZ25) may serve as a new proxy for palaeo sea surface temperatures, including in the polar regions. Next steps will involve determination of …

Simulated Emergency Room Sign-Outs: What They Tell Us About Diagnostic Accuracy And Opportunities For Improvement, Roni Matin, Brent R King, Amit M Mehta, Susan H Fenton, Nathan R Hoot, David J Robinson, Charles L Maddow, Amy Franklin

Faculty, Staff and Student Publications

Objective: Emergency department (ED) sign-outs provide continuity of care for patients at shift changes. However, these periods have been associated with communication breakdowns and medical errors. We explored information factors (stage-of-the-case and the explicitness of the sign-out narrative) to determine their impact on clinicians' diagnostic accuracy and confidence.

Methods: Clinicians from 2 academic ED sites reviewed patient vignettes sign-out narratives (N=69). Using a within-subjects experiment, the explicitness of the sign-out information (i.e., broad statement about labs versus stating each test) and the patient's stage in the diagnostic process (e.g., labs pending, treatment occurring, etc.) at the time of sign-out varied. …

Smartphone Attachment In Emerging Adults : Impacts On Mental Health Through Basic Psychological Needs, Jialin Xiao

Lingnan Theses (MPhil & PhD)

In the digital era, smartphones have become integral to daily life, fulfilling various emotional needs. Mirroring human attachment, past studies have found people can develop three types of attachment to smartphone: secure (comfortable, dependable connection), anxious (intense emotional reliance with separation anxiety) and avoidant (preference for independence from one’ s phone) attachment. However, little is known about how these types of smartphone attachment relate to mental health over time. Moreover, the mechanism underlying the relationship between smartphone attachment and mental health is unknown. To fill these gaps, based on the attachment theory, this study examined the longitudinal associations between smartphone …

Theoretical Study On Electronic And Optoelectronic Properties Of Some C^N^N- And C^C^C-Chelated Iridium(Iii) Complexes For Oleds, Ayhan Üngördü

Turkish Journal of Chemistry

The electronic and optoelectronic properties of 8 C∧N∧N- and C∧C∧C-chelated Ir(III) complexes were investigated using density functional theory at the Becke-style 3-parameter Lee-Yang-Par and triple zeta plus polarization level. Based on reorganization energy calculations, complex 7 was identified as a promising ambipolar material, while complexes 1 and 2 had efficient hole transport properties. Complex 8 had low ionization potential and is therefore a strong candidate for hole transport applications. Complex 4 had high electron affinity and therefore has potential as an effective electron acceptor material. Photophysical analysis showed that all complexes had phosphorescent properties, with complexes 5 and 6 showing …

Synthesis, Characterization, And Drug Release Properties Of Enzyme-Responsive Oxamide-Bridged Mesoporous Organosilica Nanoparticles, Yaşar Gök, Hali̇l Zeki̇ Gök, Osman Tayyar Arli, Tuğçe Türkaslan

Turkish Journal of Chemistry

In this study, we report a novel enzyme-responsive mesoporous organosilica nanocarrier (MON) and its drug delivery properties in the presence of the trypsin enzyme. The mesoporous organosilica nanocarrier was synthesized by using the oxamide bridged bissilyl compound (2) and 1,4-bis(triethoxysilyl)benzene (BTSB). To compare the enzyme responsiveness of MON, the reference periodic mesoporous organosilica (PMO) nanocarrier was also synthesized using BTSB only. The structural determinations of the synthesized organic compounds were carried out by 1H, 13C-NMR, FT-IR, and MS, while FT-IR, XRD, SEM, EDS, transmission electron microscopy (TEM), TGA, and N2 sorption analyses were used for the characterization of MON and …

A Novel P–N Junction Uio-66/Agins2 For Photodegradation Of Enrofloxacin Under Visible Light, Sajedeh Sadat Hashemipoor, Reza Fazaeli, Hamid Reza Moghadam Zadeh, Mehdi Arjomand

Turkish Journal of Chemistry

The formation of a heterogeneous junction between photocatalysts may be a potential solution for removing medicinal compounds from wastewater, which is crucial due to the environmental and health risks. The present study aims to investigate the efficacy of UiO-66/AgInS2 p–n junction photocatalyst—a Zr-based metal-organic framework—in degradation of enrofloxacin (ENR) antibiotic using visible light. UiO-66, AgInS2 (AIS), and UiO-66/AIS semiconductors were characterized using various techniques. The comparative analysis of particle structural parameters utilized diverse methodologies, and response surface methodology (RSM) was applied for the optimization of ENR degradation. The degradation kinetics of ENR were investigated. We identified UiO-66/AIS as a p–n …

Selective Extraction Of Scandium From Other Rare Earth Elements Using A Hydrophobic Protic Ionic Liquid Composed Of Decanoic Acid And Toa, Pius Dore Ola, Reo Nishioka, Yoshiro Tahara, Michiaki Matsumoto

Turkish Journal of Chemistry

Rare earth elements (REEs) are increasingly being used in advanced materials, but their extraction remains a major challenge. This is primarily due to their nearly identical ionic radii and similarity in chemical and physical properties. Therefore, this study aims to explore the use of a hydrophobic protic ionic liquid (PIL) composed of decanoic acid and trioctylamine (TOA) to selectively extract scandium (Sc) from other REEs using acid or salt as the extraction medium. In the acidic medium, the extraction efficiency of all tested REEs was inversely proportional to the acid concentration. Meanwhile, the extraction percentage of Sc was significantly higher …

The Implications Of Insecure Use Of Fonts Against Pdf Documents And Web Pages, Junjie Xiong, Mingkui Wei, Xiao Han, Zhuo Lu, Yao Liu

Computer Science Faculty Research & Creative Works

This paper identifies the importance of the safe use of fonts in web and document security. We find multiple attack surfaces that can be exploited by an adversary using malicious fonts. We conduct a comprehensive evaluation of Portable Document Format (PDF) documents collected from the real world to investigate how an attacker can bypass PDF signatures. We further evaluate the potential security threats that an attacker can bring to web-based emails. Our study shows that various security issues may be caused by the inappropriate use of fonts, which are nevertheless overlooked in the past years. As such, guidelines promoting the …

High-Grade Glioma With Pleomorphic And Pseudopapillary Features: A Single-Institution Series Of Three Cases, Eric A Goethe, Rasha Alfattal, Subhiksha Srinivasan, Pushan Dasgupta, Vinay Puduvalli, Shiao-Pei Weathers, Leomar Y Ballester, Jeffrey S Weinberg, Sujit Prabhu, Sherise D Ferguson, Maria A Gubbiotti

Faculty, Staff and Students Publications

Introduction: Modern molecular diagnostic techniques such as DNA methylation profiling are leading to the reclassification of several central nervous system malignancies and discovery of novel diagnostic entities, such as high-grade glioma with pleomorphic and pseudopapillary features (HPAP).

Methods: We performed a retrospective chart review of all patients with HPAP confirmed with methylation profiling at a single institution between 2023 and 2025. Demographic, radiographic, surgical, and outcome data were collected.

Results: Three patients were identified: two females and one male with a mean age of 49.7 years (range 25-62). No patients had a prior cancer history. One patient had an incidentally …

Combining Code Analysis And Pedagogical Guidance: Automated Tools For Teaching Debugging In Introductory Programming, Yana Malysheva

McKelvey School of Engineering Graduate Student Theses & Dissertations

The ability to debug code is critical to being a programmer and represents a distinct skill from writing code. Yet debugging is rarely explicitly taught in introductory programming and Computer Science courses. Instead, novices typically develop their own debugging habits and strategies when they encounter bugs in their code, which are often less effective than those of expert programmers. When students do seek help with debugging, they traditionally turn to office hours conducted by Teaching Assistants (TAs) or, increasingly, to Large Language Models such as ChatGPT. However, both sources of assistance have limitations. TAs are often students themselves with limited …

Multi-Layer Support For Component-Based Cyber-Physical Systems Applications, Oren Bell

McKelvey School of Engineering Graduate Student Theses & Dissertations

Component-based design is a paradigm meant to aid in development of software applications by modularizing different functionalities of a system. This building-block approach is used extensively in cyber–physical and robotic systems. Common and established solutions to specific problems, such as perception nodes, state estimators, and motion planners, can be developed, verified, and reused as off-the-shelf modules. These modules may be integrated atop today’s heterogeneous hardware platforms, where an application can be distributed across GPUs, FPGAs, and CPU cores. When heterogeneous computational devices share the workload of a collection of components, the very act of integration may inject timing uncertainty. For …

A Mechanistic Understanding Of Transcutaneous Auricular Vagus Nerve Stimulation, Kara Michelle Donovan

McKelvey School of Engineering Graduate Student Theses & Dissertations

Transcutaneous auricular vagus nerve stimulation (taVNS) offers great potential as a noninvasive neuromodulation technique with expanding therapeutic potential across a range of neurological and systemic indications. Yet despite strong clinical interest, the mechanistic foundations of taVNS remain incompletely understood. In contrast to the invasive form of vagus nerve stimulation (VNS), taVNS has seen more limited parametric characterization, with many studies relying on parameters adopted from invasive protocols without systematic validation at the noninvasive level. This dissertation focuses on developing a more comprehensive understanding of the underlying mechanisms of taVNS. It extends existing literature by leveraging intracranial electrophysiology to directly quantify …

Moment Ensemble Approaches For Estimation And Robust Quantum Control, Andre Luiz Paes De Lima

McKelvey School of Engineering Graduate Student Theses & Dissertations

Large-scale population dynamics governed by ensemble systems present significant challenges due to their inherently high dimensionality. Recent advances have demonstrated the effectiveness of moment-based methods (particularly those employing polynomial bases such as Legendre and Chebyshev polynomials) when integrated with optimization techniques for control design in ensemble systems. However, these methods have not been extensively explored for enhancing robustness against systematic noise, nor have they been widely applied to complex quantum systems involving multi-parameter configurations and entanglement phenomena. In this work, we extend the application of moment methods in ensemble systems through two projects. Initially by developing a Kalman filter analogue, …

Spatial Patterns In Electronic Health Record Data-Based Predictive Modeling: A Case Study Of Prenatal Care And Preeclampsia, Abigail Lewis

McKelvey School of Engineering Graduate Student Theses & Dissertations

The electronic health record (EHR) documents interactions between patients and healthcare systems and is widely used for secondary research on health outcomes due to broad adoption. While EHR data support efficient clinical informatics research, they are subject to biases stemming from healthcare seeking behavior, health system attributes, and individual or environmental characteristics. Place-based characteristics, in particular, strongly influence when and how patients access care and shape health outcomes. These biases in EHR data can affect predictive modeling pipelines which leverage them, contributing to variation in model performance across groups. In healthcare, where predictive models are increasingly used to guide care, …

Faster, Higher, Stronger: Modern Methodologies For The Calibration, Exploration, And Utilization Of Agent-Based Models, David O'Gara

McKelvey School of Engineering Graduate Student Theses & Dissertations

Increases in computing power and availability have led to the widespread use and adoption of agent-based models (ABMs) in the physical, biological, and social sciences. At their core, ABMs represent a novel paradigm for scientific inquiry: their micro-level specification allows for the simulation of the individual components of a system which yields a deeper understanding of dynamic processes such as contagion and adaptive decision-making when used appropriately. However, several hurdles exist when attempting to use ABMs to their full potential. In this thesis, we will explore and address several challenges in designing and utilizing ABMs, with a focus on applying …

The Psychology Of Sharing Experiences, Hyebin Kim

Olin Business School Graduate Student Theses and Dissertations

From dinners with family to parties with friends, consumers frequently spend time with and share experiences with other people. Sharing consumption with other people can uniquely shape people’s decisions and experiences, often in ways that differ from when individuals are on their own. In my research, I examine what kinds of experiences consumers like to share with other people, and how being the one who organizes gatherings for other people influences consumers’ decisions and experiences during shared consumption. In Chapter One, “When Sharing Experiences with Others, People Prefer Novel Experiences,” I examine how the social context of an experience, in …

Innovations In Developing Hots Ipas Essay Questions For Fifth Grade Elementary School Students, Adyatma Nugrahsanto Wicaksono, Siti Faizah

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

The development of High Order Thinking Skills (HOTS) questions in Science and Social Studies (IPAS) for fifth-grade elementary students is a crucial step toward improving education quality. These questions go beyond testing memory by fostering critical, analytical, and creative thinking skills aligned with modern educational demands. Employing the 3D model (Define, Design, Develop) the study systematically develops HOTS based questions tailored to learning objectives and student needs. The process integrates cognitive levels C4-C6 of Bloom's taxonomy, emphasizing analysis, evaluation, and creation to enhance higher-order thinking. Validation results show that these HOTS-based questions are "Highly Relevant," achieving scores of 92.86% for …

Assessing University Students’ Self-Reported Vocabulary Learning Strategy Use, Yirgalem Girma

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

Learning vocabulary is certainly a vital component of language learning and without this integral component of language communication becomes hardly meaningful. Thus, students are expected to have rich vocabulary power that enables them to communicate successfully via listening, speaking, reading, and writing; it assists students in expressing a range of meanings in various communicative situations for various purposes. This demands students to learn vocabulary using diverse vocabulary learning strategies that assist them in learning (internalizing, storing, recalling, and using) words properly. However, several students barely manage vocabulary learning tasks and/or use appropriate and diverse vocabulary in English classes. Consequently, this …

Teachers' Difficulty Factors In Implementing Differentiated Learning In Geography Subjects, Aulia Nindy Fadila Gastama

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

The implementation of differentiated learning in geography subjects provides benefits for teachers and students. On the other hand, teachers still have difficulty implementing differentiated learning elements. This research aims to analyze the factors related to teacher difficulties in implementing differentiated learning in geography subjects. The research method used descriptive qualitative research with semi-structured interviews. The informants used were geography teachers of SMAN Malang City. Data analysis was conducted by 1) data reduction, 2) data presentation, and 3) conclusion drawing. The results showed that geography teachers in Malang City State Senior High School faced difficulties in implementing differentiated learning. In content …

Targeted Depression Screening For At-Risk High School Students: An Integrated Review, Joseph Calub

DNP Qualifying Manuscripts

Depression in high school students is underrecognized because symptoms can present not only as mood issues but also behavioral or academic problems. This integrated review examined literature from 2010-2015 using PsycInfo, ERIC, CINAHL, and PubMed to evaluate the effectiveness of targeted depression screening for students referred for behavioral, academic, or social concerns. Studies meeting inclusion criteria assessed targeted or clinically referred screening methods, with a focus on validated tools such as the Patient Health Questionnaire modified for Adolescents (PHQ-A). Findings indicate that targeted screening effectively identifies depressive symptoms in at-risk students and is more feasible in resource-limited schools than universal …