Digital Commons Network^™

Consequences Of Secondary Traumatic Stress On Individuals Without Formal Psychological Training Working With Trauma-Exposed Children, Juan F. Valdez

Electronic Theses and Dissertations

Literature has suggested that secondary traumatic stress could cause various adverse effects for individuals working with trauma-exposed populations. However, direct care workers performing in shelters designed to serve unaccompanied immigrant children are faced with the task of caring for these minors who may have been exposed to trauma in their home countries, while traveling to the United States, or after arriving in the country. This qualitative case study was conducted to understand and describe the experiences of 15 current employees and five ex-employees who have worked with unaccompanied children for at least a year. These individuals participated in in-depth personal …

Exploring The Role Of Christian Religiosity In The Acceptance Or Rejection Of Ai Chatbot Use Among Faculty At Church Of Christ Universities, Amos Gutierrez

Electronic Theses and Dissertations

Higher education institutions are navigating the benefits and challenges of generative AI chatbot use and preparing faculty and students to engage with these tools ethically and responsibly. The problem is that there are many challenges and barriers to using these technologies in higher education, and Christian higher education institutions must also address context-specific considerations regarding mission and vision rooted in biblical faith and practice. The purpose of this quantitative, nonexperimental, cross-sectional study using confirmatory factor analysis and multiple regression through structural equation modeling was to examine faculty perceptions of AI chatbots and how Christian religiosity moderates acceptance. An online survey …

The 4-Day School Week: Impacts On Rural Texas School Districts, Geoffery Bowdoin

Electronic Theses and Dissertations

This study examined how school administrators, teachers, and parents in rural Texas districts view the effects of the 4-day school week. Across Texas, a growing number of districts have adopted shorter calendars to address teacher shortages, boost morale, and manage tight budgets. The goal of this research was to gain a clearer understanding of how this schedule shift influences student performance, district finances, and teacher recruitment and retention. The study followed a qualitative descriptive approach. Data were collected through two means. Semistructured interviews were conducted with 12 school administrators, while 29 teachers and 42 parents completed surveys. Research participants came …

Leading With Strength: The Relationship Between Character Strength Awareness And Teacher Self-Efficacy, Ashton Lynn Knox

Electronic Theses and Dissertations

Traditional educational leadership practices have historically emphasized weakness-based approaches to leadership regarding teacher interventions. Emerging research grounded in positive psychology suggests that strength-based interventions may offer a more effective pathway for supporting educators. The purpose of this action research study was to examine the influence of character strength awareness on teacher self-efficacy. Guided by a strength-based leadership framework, the researcher investigated whether intentional character strength interventions could positively impact teachers’ perceptions of their instructional effectiveness. The study employed an action research design with 14 K–12 teachers from a rural public school district in Texas. Participants completed the Values in Action …

A Protectorate Divided: The Otjimbingue Petition And Settler Contestations Of Railway Construction In German Southwest Africa, 1897–1902, Marta Millar

Publications and Research

Supporters of the State Railway in German Southwest Africa heralded its construction as ‘the dawn of a new era for the protectorate’ (Windhoeker Anzeiger, 27 October 1898). While railways did enable the expansion of colonial communities, not all settlers wrote as optimistically about this change as did the Anzeiger’s editor. Between 1897 and 1902, familial correspondence and debates in the protectorate’s first newspaper, the Windhoeker Anzeiger, reveal how various settlers negotiated the railroad’s transformative impact on colonial society and their everyday lives. Opposition voices argued that the railroad would harm the fragile colonial economy, serving only …

Information Without Rents: Mechanism Design Without Expected Utility, Ernesto Rivera Mora, Philipp Strack

Cowles Foundation Discussion Papers

We study mechanism design for a sophisticated agent with non-expected utility (EU) preferences. We show that the revelation principle holds if and only if all types are EU maximizers: if at least one type is a non-EU maximizer, randomizing over dynamic mechanisms generates a strictly larger set of implementable allocations than using static mechanisms. Moreover, dynamic stochastic mechanisms can fully extract the private information of any type who doesn’t have uniformly quasi-concave preferences without providing that type any rent. Full-surplus extraction is possible in a broad variety of non-EU environments, but impossible for types with concave preferences.

Streams Guidelines: Standards For Technical Reporting In Environmental And Host-Associated Microbiome Studies, Julia M. Kelliher, Chloe Mirzayi, Sarah R. Bordenstein, Aaron Oliver, Christina A. Kellogg, Eneida L. Hatcher, Maureen Berg, Petr Baldrian, Mashael Aljumaah, Cassandra Maria Luz Miller, Christopher Mungall, Vlastimil Novak, Alexis Palucki, Ethan Smith, Nazifa Tabassum, Gregory Bonito, J. Rodney Brister, Patrick S. Chain, Mingfei Chen, Samuel Degregori, Xuefeng Peng, Et. Al.

Faculty Publications

The interdisciplinary nature of microbiome research, coupled with the generation of complex multi-omics data, makes knowledge sharing challenging. The Strengthening the Organization and Reporting of Microbiome Studies (STORMS) guidelines provide a checklist for the reporting of study information, experimental design and analytical methods within a scientific manuscript on human microbiome research. Here, in this Consensus Statement, we present the standards for technical reporting in environmental and host-associated microbiome studies (STREAMS) guidelines. The guidelines expand on STORMS and include 67 items to support the reporting and review of environmental (for example, terrestrial, aquatic, atmospheric and engineered), synthetic and non-human host-associated microbiome …

Computational Study On Protein Docking With Vascular Disease Application, Lohitha Reddy Shanigaram

Master's Theses

This thesis investigates how computational methods can help us understand protein docking and vascular diseases by integrating machine learning. The main goal of this research is to develop a system that can predict whether variants in the SOX17 gene are associated to Pulmonary Arterial Hypertension (PAH), a significant vascular condition. To do this, a dataset of 1,063 SOX17 variants was created using publicly available sources such as ClinVar, gnomAD, LOVD, and Ensembl. The study included cleaning and structuring the dataset, encoding genomic data and training a Random Forest classifier to classify variants as positive, negative, or unknown for disease association. …

East Antarctic Ice Sheet History At The Outback Nunataks Using Geographic Information Systems And Cosmogenic Dating, Jacob P. Baker

Electronic Theses, Projects, and Dissertations

This study investigates the history of ice sheet surface elevation at the Outback Nunataks in East Antarctica using exposure age dating and geomorphic mapping. We identified glacial landforms at Roberts Butte, Miller Butte, and Frontier Mountain, in the Outback Nunatak range, using 2023 Landsat Image Mosaic of Antarctica (LIMA) and 2022 Reference Elevation Model of Antarctica (REMA). We collected bedrock and glacial erratic samples for cosmogenic nuclide analysis from Roberts Butte and Miller Butte during the 2023-24 United States Antarctic Program field season. Analysis of glacial erratics reflect inherited cosmogenic nuclide concentrations, resulting in apparent exposure ages between 359 and …

The Impact Of The Covid-19 Pandemic On National Hockey League Fan Attendance, Ramon E. Rivera

Electronic Theses, Projects, and Dissertations

The COVID-19 pandemic struck swiftly around the world, causing several societal functions and normalcies to adapt or shut down completely. This culminating project explores the effects of COVID-19 on arena fan attendance of the National Hockey League (NHL). This project was guided by the following three research questions: Q1 – How did the NHL arena closures affect fan attendance during the COVID-19 pandemic? Q2 – What factors influenced NHL fan arena attendance before the start of the COVID-19 pandemic? Q3 – What factors impacted the NHL arena fan attendance after the conclusion of the COVID-19 pandemic? An empirical model developed …

Motivating Through Assessment: Exploring Best Practices In Continuation High Schools, Stephanie Milton

Electronic Theses, Projects, and Dissertations

This qualitative exploratory case study examined how continuation high school teachers perceive and implement assessment practices that foster student motivation and accurately measure learning. Grounded in Assessment for Learning (AFL) and Self-Determination Theory (SDT), the study sought to identify assessment strategies that promote autonomy, competence, and relatedness among students who are at risk of academic disengagement. Seven teachers from a Continuation High School in the Coachella Valley participated in semi-structured interviews to explore their experiences, beliefs, and classroom practices regarding assessment and motivation. Data were analyzed thematically using Braun and Clarke’s (2006) method, with triangulation across interviews and literature to …

Groundwater Arsenic Contamination In The Oro Grande Wash, Dalila Boice

Electronic Theses, Projects, and Dissertations

This study investigates the distribution of naturally occurring arsenic in groundwater within the Oro Grande Wash in San Bernardino County, California. Depth-discrete groundwater quality data were collected over multiple years using nested and Westbay monitoring wells. Water quality results showed higher levels of arsenic in the deeper aquifers, ranging between 600 feet and 1,000 feet below ground surface. Arsenic levels in these regions reached as high as 66 µg/L. At roughly 800 feet and below, water quality data from the wells reveal that arsenic concentrations exceeded the 10 µg/L maximum contaminant level (MCL) in 87% of cases. These data provide …

Learning To Think, Thinking To Learn: A Qualitative Investigation Of Inquiry-Based Learning And Metacognition In Preschools, Jessica Carter

Electronic Theses and Dissertations

In response to an increased focus in the field of early childhood on inquiry-based practices and metacognition, this qualitative study was designed to investigate a variety of approaches to planning and facilitating classroom inquiry. Additionally, this research was designed to discover the ways in which metacognitive strategies are used in preschool classrooms to foster the learning process. Using teacher interviews, classroom observation, and analyses of teachers’ planning documents in a multiple case study design, this study focused on five Reggio-inspired classrooms to investigate the planning and teaching practices of preschool teachers related to inquiry-based learning. Of importance was their use …

Interventional Study Of The Iselfie Heart Health Tool For Assessment Of Vital Signs (Heart Rate, Blood Pressure, And Oxygen Saturation) In The Kingdom Of Saudi Arabia, Abdulaziz S. Alhomod, Demah Abdulaziz Almowanes, Robert Scooter Plowman, Azhar Quddus, Hassan Mohamed, Mahmut Karakaya, Ahmed Elgebaly, Jamilah Alrahimi, Raed Alkutshan, Adel Tash

Saudi Medical Journal

ABSTRACT Objectives: To validate the diagnostic performance of the iSelfie Heart Health tool compared to standard-of-care devices, focusing on accuracy, reliability, and classification capabilities. Methods: Vital sign measurements from 579 participants were analyzed using the iSelfie tool in calibrated and non-calibrated modes. Further analyses applied the Association for the Advancement of Medical Instrumentation (AAMI) standards and criteria for cuff-based blood pressure (BP) devices. Primary endpoints included mean absolute error (MAE) and cumulative error percentages for all vital parameters. Binary and multi-class classification analyses evaluated the device’s performance to categorize hypertension grades. Results: In calibrated mode, the iSelfie tool demonstrated high …

Correlation Of Clinical And Laboratory Findings Of Dehydration With Ultrasonographic Measurements, Yusuf Yilmazturk, Abdullah Sadik Girisgin, Mustafa Alpaslan, Necmi Baykan

Saudi Medical Journal

ABSTRACT Objectives: To assess bedside ultrasonographic readings in conjunction with laboratory and clinical results, as well as to look into the efficacy of these measurements while evaluating patients who are being monitored for dehydration and managing their therapy. Methods: We assessed 300 patients, 150 of whom were in the case group and 150 in the control group. Laboratory results throughout therapy, clinical dehydration, vital signs, and bedside ultrasonography results were all documented. A vena cava inferior collapsibility index of 50% or higher, dry oral mucosa, decreased skin turgor, and a fresh onset of altered consciousness were all considered clinical indicators …

Make Ready: Productive Disruption And Interstitial Sites Of Graphic Design Practice, Peter Maybury

Theses

This thesis draws on five publications produced between 2010–22: My 2020 film installation Landfall; a series of four museum and gallery-published books made with artist Gerard Byrne (2010–18); Gall, my practice enquiry with Tom dePaor which encompasses film, writing, books, sculpture, curation, and gallery works; releases and live performances by my band Thread Pulls during the period 2010–12; and my exhibition, conference talk, and book Make Ready (2015), the structure of which is taken as ‘armature’ for the writing of the thesis. Through these wide-ranging pursuits, this thesis articulates a non-normative role for the graphic designer. It identifies my operative …

Borderplex Business Barometer, Volume 9, Number 12, Thomas M. Fullerton Jr., Steven L. Fullerton

Border Region Modeling Project

No abstract provided.

Full Issue, Volume 20, Issue 4

Journal of Youth Development

No abstract provided.

Sport Participation, Academic Engagement, And Well-Being Among Adolescents Impacted By Parental Incarceration, Sarah Kaja, Amy L. Gower Ph.D., Frederique Corcoran, Ingie Osman, Elizabeth Shaver, Samantha J. Adler, Rebecca Shlafer

Journal of Youth Development

Millions of American adolescents have experienced the developmental consequences associated with parental incarceration. Positive youth development activities, including sports team participation, could buffer some of the risks of parental incarceration. Research on sports involvement among adolescents impacted by parental incarceration is scant and suggests their participation may be limited, though a significant body of research among adolescents in general demonstrates sports team participation is associated with better outcomes. We addressed important gaps in research by 1) estimating the prevalence of sports team participation among adolescents impacted by parental incarceration, 2) examining whether sports team participation differed by socioeconomic status in …

High-School-Age Youth Serving As “Emotion Coaches” For Young Children In The Early Grades: A Feasibility Study Of A Cross-Age Approach To Social And Emotional Learning, Amanda Moreno, Maria Kontoudakis, Whitney Davis-Mcintosh, Anita Evans, Olivia Bobbitt

Journal of Youth Development

While the benefits of cross-age programming within youth have been understood for decades, such programs are rarely employed with curricula specific to social and emotional learning (SEL) or with a wide age range between the two groups of youth. This article describes the findings of a pilot implementation and feasibility study of the Emotion Coaches program, which sought to explore whether the conceptual and pragmatic challenges involved in bringing early childhood students (i.e., preschool to second grade) together with adolescent teachers delivering an SEL curriculum could be overcome. Findings from the pilot evaluation suggested that middle-school-age students are likely too …

Coaching Life Skills Through Sport: Program Description And Evaluation, Lori Gano-Overway, Sarah Sackett, Robert J. Harmison, Dorian Hayden

Journal of Youth Development

While life skill development opportunities in sport and the coach’s essential role in facilitating the process have received much support, coaches often report they lack the tools and confidence necessary to integrate life skill development strategies into practice. Additionally, while life skill development focused coach education programming exists, few have been formally documented and systematically evaluated for effectiveness. The present study aimed to describe an accessible (online, free, asynchronous) and evidence- informed course while assessing the program’s fidelity and utility using the utilization-focused evaluation model (Patton & Campbell-Patton, 2021). The developed Coaching Life Skills Through Sport (CLSTS) course covers empirically …

Proceedings Of The 25th International Symposium On Adapted Physical Activity, Catherine Carty, Gerard Masdeu Yelamos

Publications

This volume presents the Proceedings of the 25th International Symposium of Adapted Physical Activity (ISAPA 2025), hosted by Munster Technological University under the Patronage of UNESCO. It is intended as a permanent scholarly record of the symposium, its themes, and its contributions across research, practice, policy, culture, and inclusion in line with CoARA principles.

Sme Cyber Resilience State Of The Sector 2025, Hazel Murray, Gillian O'Carroll, Aoibheann Brangan, Jason Holland, Stephanie Chevanne Wallace, Miriam Curtain, Glenda Deveney

Department of Computer Science Publications

Ireland's small and medium enterprises (SMEs) face a critical cyber resilience gap. SMEs account for 99.8% of all enterprises in Ireland and employ over 2.29 million people, representing 67.9% of total employment (based on the latest CSO 2022 figures). This cyber resilience assessment reveals that the majority of SMEs remain underprepared for modern cyber threats.

Analyzing The Impact Of Diet On Dusky Gopher Frog (Lithobates Sevosus) Development In Head Start Programs, Mckalyn Nelson

Honors Theses

Species are constantly impacted by human activity, directly or indirectly. One critically endangered species under investigation is the dusky gopher frog (Lithobates sevosus), which is an endemic species of frog found in the southeastern United States. Historically found from Louisiana to Alabama, a drought in 2002 narrowed the dusky gopher frog range even further. Head start programs have been shown to be effective in increasing population numbers; however, there is not much published data on the effectiveness of captive rearing diets for these programs. The dusky gopher frog head start program at the University of Southern Mississippi’s Lake …

Complementary Color Laser Illumination For Perceptual Contrast Enhancement In Structurally Colored Samples, Tomoshree Dash

All Theses

Structural color, a phenomenon arising from nanoscale interaction between light and materials, has the potential to unveil biological, chemical, physical, and mechanical characteristics of the sample. It enables direct visualization of the sample by human users with high spatiotemporal resolution. However, its impact is often constrained by challenges in the perceptual differentiation of subtle color variations. This thesis introduces complementary color laser illumination (C²LI) as an imaging technique that enhances color perception of the Human Visual System (HVS) by accessing the psychophysical non-linearities in chromatic color perception. C²LI offers a platform optimized for the HVS by …

Conference Realignment And Coaching Perspectives: Examining Social Support From Coaches To Athletes In The Acc, Big 12, And Big Ten, Brannon H. Timms

All Theses

The purpose of this study is to understand, from a coach's point of view, their perspective on conference realignment and how, if at all, it has changed their relationship with their athletes as it pertains to social support. Findings indicate that coaches expressed awareness of social support needs for their student athletes; notable gaps remain in emotional, esteem, and informational support. Based on the participants' responses, tangible support emerged as the only form of social support provided by these coaches. Coaches also expressed a desire for further legislation regarding NIL to maintain competitive fairness among NCAA athletics. The results underscore …

Digital Solutions For Bridging Language Barriers: Designing And Testing An App For Construction Spanish Safety Communication On Construction Jobsites, Adrian Cappella

All Theses

Language barriers between English-speaking supervisors and Spanish-speaking workers create safety risks on U.S. construction jobsites. Hispanic workers face higher injury and fatality rates, with miscommunication being a major contributing factor. Existing translation tools lack the accuracy, cultural context, and jobsite relevance needed for effective safety communication.

In this study a mobile application with construction-specific safety phrases in English and Spanish was designed and field tested. The research included a literature review, phrase collection and validation with industry experts, application development and design with a computer science collaborator, and usability testing with supervisors and workers. Surveys and field trials measured navigation, …

Reproduction And Larval Development Of The Invasive Asian Longhorned Beetle In South Carolina, Lindsey A. Stone

All Theses

The Asian longhorned beetle (Anoplophora glabripennis Motschulsky; ALB) is a major threat to forest health due to the damage done by larval feeding in host trees. In 2020, ALB was discovered in Charleston County, South Carolina, which presents a novel climate for this invasive pest in North America. I investigated the reproductive biology and larval development of ALB to support detection and management efforts. By exposing 19 host trees to mated pairs of adults, I was able to determine rates of oviposition success (55%), egg viability (55%), and early larval survival (56%). On average, females chewed nearly 1 egg …

Process Optimization And Cost Reduction For Cellulose Nanocrystals For Metal Removal From Rendered Fat, Sheikh Abdur Rehman

All Theses

Cellulose nanocrystals (CNCs) coupled with polymers featuring a high density of amine functional groups, such as polyethylenimine (PEI), exhibit significant metal-capturing capabilities. Rendered animal fat has applications in a vast number of industries, with the potential to be used as a feedstock for the biodiesel/renewable diesel industries. Nevertheless, rendered fat samples occasionally contain concentrations of metals/inorganic contaminants above the suitable threshold for use in this application. Thus, a cost-effective solution to remove light metal/inorganic contaminants from rendered fat samples is desirable.

To address this problem, a cellulose nanocrystal coupled with polyethylenimine, i.e., CNC-f-PEI, was developed by previous …

Experimental And Numerical Study On The Influence Of Carbon Fiber Reinforcement On The In-Plane Compressive Properties Of 3d Printed Hexagonal Honeycomb Core Structures, Deon Wallace

All Theses

There is difficulty with numerically replicating the behavior of composite honeycomb core structures numerically due to the trouble of gathering material properties from a hollow structure. Also, complex part geometries and carbon fiber reinforcement strategies can lead to unwanted structural weaknesses and variance in material properties that may not be reflected in numerical analysis when the part is additively manufactured. In this study, edgewise compressive testing is used to characterize the mechanical behavior and performance characteristics of these structures. The experimental results indicate an increase in the Young’s moduli of the honeycomb core structures as carbon fiber concentration increases. However, …