Digital Commons Network^™

Optimized Co2 Gas Sensing With Sns:Sm2o3/N-Si Nanocomposites Fabricated Via Spray Pyrolysis, Wasan A. Khalaf, Mays A. Hammadi, Mohammed J. Alsultani, Yahya R. Hathal, Mohammed O. Salman

Karbala International Journal of Modern Science

In this work, tin sulfide:samarium oxide (SnS:Sm₂O₃) composite films were deposited using a spray pyrolysis technique for room-temperature CO₂ gas sensing. X-ray diffraction (XRD) confirmed a polycrystalline SnS nature of orthorhombic-phase crystallinity at 10 at.% Sm ions, while 20 at.% Sm induced Sm₂O₃ as a separate phase. Field emission-scanning electron microscopy (FE-SEM) induced uniform grains and increased the surface roughness, enhancing gas adsorption. UV-visible absorbance revealed band-gap narrowing. Fourier transform infrared spectroscopy (FTIR) analysis revealed vibrational band shifts, confirming the structural modifications. Gas-sensing measurements demonstrated 5.72%, 19.65%, and 9.65% for pure SnS, …

Marketing Strategy In The Age Of Ai, Mary C. Martin

All Open Educational Resources

Marketing Strategy in the Age of AI is an Open Educational Resource designed to help students master foundational marketing strategy while understanding how artificial intelligence is reshaping marketing practice. The textbook emphasizes core strategic thinking and positions AI as a tool that enhances, rather than replaces, human judgment and decision-making. The book covers key areas of marketing strategy across the marketing mix, including environmental analysis, market research, product development, pricing, distribution, and promotion. Each chapter introduces established marketing frameworks and then explores how AI-driven tools and data improve insight, speed, and effectiveness in real-world marketing decisions. Examples and cases highlight …

Rethinking Geoengineering Governance Utilizing The Playing God Argument: Considerations Of Knowledge, Control, And Benevolence, Julian Dreiman, Brian Patrick Green

Staff Publications and Research

Because greenhouse gas emissions continue to grow, it is increasingly challenging to limit global warming to 1.5 or 2.0 degrees Celsius. As such, there is a growing debate on whether or not to deploy geoengineering to reduce warming. Geoengineering is controversial, and many arguments have been raised against it, including the “playing God” critique. When understood through the philosopher Moti Mizrahi’s reinterpretation, the playing God critique does not eliminate the possibility of using geoengineering, but rather informs how its governance can be improved. We use Mizrahi’s interpretation of the playing God critique to claim that the existing governance literature lacks …

A Policy Reversal As Structural Break: A Lesson From China’S Land Lease Financing For Infrastructure, Yilin Hou, Lin Li, Lei Shao

Center for Policy Research

Land-based revenues as a fiscal instrument to finance infrastructure tie public investment to real estate markets, where demand fluctuations cause fiscal consequences. This paper takes policy reversals as structural breaks and examines their impacts on infrastructure investment. We dissect China’s 2016 policy reversal that disallowed developers to finance land purchase with debt, causing sharp declines in local government land revenues, slashing their fiscal base for infrastructure investment. Using prefecture-level panel data and continuous difference-in-differences identification, we estimate the reversal reduced land-lease revenues by 55%. Two-stage least squares estimates suggest a 10% land-revenue decline translates into 6.6% investment reduction. Decomposing the …

Coworkers' Lived Experiences Of Being Exposed To Healthcare Professionals Misusing Substances, Juratu Garuba-Agbebaku

Walden Dissertations and Doctoral Studies

Despite the harm of substances, coworkers in hospitals, healthcare facilities, and urgent care centers found themselves among healthcare professionals who misused substances such as alcohol and prescription medication. Grounded in social cognitive theory, the purpose of this qualitative descriptive phenomenological study was to explore the lived experiences of coworkers who have been exposed to healthcare professionals’ substance misuse. The participants consisted of 12 healthcare professionals working in various hospitals, healthcare facilities, and urgent care centers in the United States. Data were collected using semistructured interviews. Through Colaizzi’s seven-step analysis, five themes emerged: (a) emotional experiences, (b) ethical reflections, (c) cognitive …

Exploring Parenting Experiences: Fathers And Mothers Raising A Child With Autism, Simmi Santha

Walden Dissertations and Doctoral Studies

The experiences of parenting a child with autism spectrum disorder (ASD) have been widely studied in Western contexts. Still, limited research has explored how sociocultural factors shape these experiences in India. This qualitative study aims to address this gap by exploring and comparing the lived experiences of mothers and fathers raising a child with ASD in Kerala, India. The purpose of this study was to investigate how gender roles, cultural expectations, and social structures impact parental adaptation, coping, and caregiving practices. Bronfenbrenner’s ecological systems theory and Crenshaw’s ideas of intersectionality provide the conceptual framework of this study. Using an interpretative …

Cancer Literacy And Social Determinants Of Health: An Epidemiological Analysis Of Trust, Digital Engagement, And Healthcare Utilization In Cancer Information Seeking, Kimberly Leeann Hazel

Walden Dissertations and Doctoral Studies

The rise of online health information has increased access to cancer resources but also amplified misinformation, creating trust gaps that threaten prevention, treatment, and health equity. This study examined how trust in cancer information sources, online information-seeking, and healthcare perceptions relate among U.S. adults. Guided by the health information seeking behavior, the socioecological model, and the structural influence model of health communication, data from the 2022 Health Information National Trends Survey (N = 6,197) were analyzed with logistic regression, mediation, and moderation modeling, controlling for demographics. Trust in government agencies predicted greater cancer information seeking (odds ratio [OR] = 1.94, …

Community College Faculty Experiences As Post-Pandemic Online Instructors, Irene Arshad

Walden Dissertations and Doctoral Studies

The COVID-19 pandemic caused a sudden transition from face-to-face to online instruction. The problem that was addressed through this study is that little is known about the experiences of community college faculty members when teaching online in the post-pandemic era. Grounded in Hall’s and Hord’s concerns-based adoption model, the purpose of this qualitative study was to explore the experiences of community college faculty members’ perceptions of their teaching experiences working online post-pandemic. For this basic qualitative design, data were collected through semistructured interviews with 10 community college faculty. A thematic analysis of the data revealed the following six themes: (1) …

Collaborating With ‘Blue Food’ System Stakeholders To Achieve Optimal Nutritional Health And Wellbeing In Less Affluent Communities, Clare Pettinger, Louise Hunt, Carol Wagstaff

School of Health Professions

UK food system transformation is urgently needed, but to date, minimal research has investigated ‘blue foods’ probably because they are ethically nuanced. There exists a paradox whereby materially deprived communities should be eating more fish to meet nutritional requirements, yet there is a global ‘red flag’ around global overfishing. New collaborative and creative solutions are, therefore, needed to tackle such food system inequities. By working together, all voices can be equally heard when decisions are being made to improve the system. Similarly, innovation and disruption of established supply chains will enable better access to healthy, affordable and tasty food that …

The Vascular Density/Angiogenesis Marker Cd31/Pecam1 Does Not Correlate With Overall Survival In Neuroendocrine Tumors, Nicholas J. Skill, Kenneth Avanzino, Yvette Bren-Mattison, J. Philip Boudreaux, Ramcharan Thiagarajan, Mary Maluccio

School of Medicine Faculty Publications

Abstract: Neuroendocrine neoplasms (NENs) are rare cancers. CD31/PECAM1 is an adhesion molecule that modulates endothelial cell-to-cell contact. Increased CD31 expression is a marker for tumor growth, and cancer aggressiveness. The purpose of this study was to better understand the prognostic value of CD31 expression in primary and metastatic NEN tumors in terms of correlations with overall survival and pathological metrics, tumor grade, and tumor primary/metastatic location. As NENs are highly vascular tumors, the hypothesis is that CD31 staining is an important prognostic biomarker and target. This is based on prior correlations between CD31 staining and 3-year recurrence-free survival in pancreas …

Esg Performance In The Regulatory Transformation Era: A Systematic Thematic Review (2020–2024), Jiyeon Kim Ph.D., Wooyoung Yang

Faculty Publications

Introduction:

The 2020-2024 period represents a regulatory transformation era in ESG research, marked by mandatory disclosure frameworks (CSRD/ESRS, SEC climate rules, ISSB standards) replacing voluntary approaches. This creates a natural experiment for examining ESG-performance relationships under compulsory reporting. Despite extensive voluntary-period literature, limited research addresses how mandatory frameworks alter these relationships during regulatory transformation.

Methods:

We conducted a systematic thematic review following PRISMA 2020 guidelines (INPLASY202570105). Comprehensive database searches (2020–2024) yielded 4,441 records; after screening (Cohen's κ = 0.89), 17 high-quality studies met inclusion criteria (12 primary search, 5 ESRS-specific supplementary search). Thematic analysis identified ten interconnected themes grounded in …

Employment Stability And Security Of Low-Wage Workers In The United States, Mathieu Despard, Guangli Zhang, Stephen Roll

Center for Social Development Research

One quarter of workers in the United States make $35,000 or less, and nearly half of these are between 35 and 64 years old. Forty percent are caring for children in the home. As temporary and gig working arrangements become increasingly common, this brief explores the stability of work and income for low-wage workers. The analyses draw upon data from the Workforce Economic Inclusion and Mobility survey administered to a nationally representative sample of U.S. workers earning less than 250% of the federal poverty line. The findings from this work have direct implications for employment practices and labor policies.

Ai In Ocean Traffic Monitoring, Tyler Hawkins, Steven D. Meyers, Aishlin Ingraham, Mark E. Luther

Making Waves REU

The Maritime Automatic Identification System (AIS) produces over 100 terabytes of data annually. offering vital insights into globaJ vessel traffic, identity, and navigation patterns. However, the massive volume and inconsislent quality of AIS data introduce challenges for researchers seeking to extract reliable and applicable information. This study investigates the, effectiveness of Julius Al, an off-the-shelf data science platform, for streamlining the analysis of a ilarge AIS dataset, spanning 2015 to 2019 and covering over 42 million messages from Florida's five busiest ports. The results were compared to a previous human analysis. By leveraging only natural language prompts, we explore how …

Social Workers' Perspectives Of Using Teletherapy To Foster Resilience Among Middle-Class Single Black Mothers, Yvonne Judge

Walden Dissertations and Doctoral Studies

Inadequate mental health support, particularly from social workers, disproportionately affects middle-class single Black mothers. Prior studies have examined low-income single mothers’ access to mental health care and the potential of teletherapy as a tool for improving access; however, few have explored how middle-class single Black mothers navigate mental health challenges. Further, there is a lack of research on social workers’ perspectives of using teletherapy to foster resilience among middle-class single Black mothers. This is a critical gap, as social workers play a key role in tailoring mental health interventions. The purpose of this study was to explore social workers’ perspectives …

Staff Education To Expand Clinicians’ Knowledge On The Use Of Depression Screening Tools In A Longterm Care Facility, Abibatu Bakarr Bangai

Walden Dissertations and Doctoral Studies

Depression exists as a common yet often undetected mental health issue which affects many elderly residents who live in long-term care facilities. The combination of multiple depression screening tools with inadequate staff training leads to delayed resident diagnosis and produces variable treatment methods which raises the possibility of negative results for residents. This Doctor of Nursing Practice (DNP) project addressed a practice gap related to inconsistent implementation of the Patient Health Questionnaire–2 (PHQ-2) and Patient Health Questionnaire–9 (PHQ-9) through the development and implementation of an evidence-based staff education intervention in a long-term care setting. The research study worked to improve …

Investigating The Role Of Team Chemistry In Winning Percentage Of Collegiate Women’S Soccer Teams At The End Of A Fall Competitive Season, Erin Kasmarik-Mallett

Doctorate in Kinesiology

This study examined the relationship between team chemistry and winning percentage in collegiate women’s soccer teams following a fall competitive season. Using a quantitative, correlational design, team-level survey data assessing cohesion, team mental models, collective efficacy, and leadership were aggregated and analyzed in relation to end-of-season performance. Pearson correlations and linear regression analyses indicated a positive association between overall team chemistry and winning percentage, with team mental models and collective efficacy showing the strongest relationships. These findings support team chemistry as a measurable, multidimensional contributor to performance success and provide empirical guidance for coaches seeking evidence-based strategies to enhance team …

Pathways, Outputs And Impact Of Nih-Supported Bioinformatics And Genomics Graduate Trainees In Africa, Daudi Jjingo, Andrew Walakira, Suhaila Hashim, Cisse Cheickna, Ronald Galiwango, Caleb Kibet, Florence N Kivunike, Gerald Mboowa, Fredrick Elishama Kakembo, Babajide Ayodele, Jean-Baka Domelevo Entfellner, Santie De Villiers, Karen Wambui, Segun Fatumo, Tinashe Chikowore, John Mukisa, Alfred Ssekagiri, Nicholas Bbosa, Julius Mulindwa, Samuel Kyobe, Mike Nsubuga, Grace Kebirungi, Eric Katagirya, Savannah Mwesigwa, Ibra Lujumba, Rogers Kamulegeya, Samuel Kirimunda, Stephen Kanyerezi, Shahiid Kiyaga, Ivan Sserwadda, Davis Kiberu, Bernard S Bagaya, Julius Okwir, Patricia Nabisubi, Grace Nabakooza, Mugume Twinamatsiko Atwine, Ricard Sserunjogi, Rolanda Julius, Mariam Quiñones, Meghan Mccarthy, Phillip Cruz, Karlynn Noble, Christopher J Whalen, Darrell Hurt, Maria Y Giovanni, Michael Tartakovsky, Deogratius Ssemwanga, John M Kitayimbwa, Steven J Reynolds, Christopher C Whalen, Andrew Kambugu, Neil A Hanchard, Li Jian, Peter Amoako-Yirenkyi, Graeme Mardon, I King Jordan, Samson Pandam Salifu, Mamadou Wele, Ezekiel Adebiyi, Jeffrey G Shaffer, Seydou Doumbia, David Patrick Kateete, Michelle Skelton, Nicola Mulder, Jonathan K Kayondo, Daniel Masiga, H3africa Consortium

Faculty, Staff and Students Publications

Global biomedical and health research is increasingly relying on genomic and computational approaches, largely driven by the increasing volumes of nucleic acid sequencing. Concurrently, epidemiological studies and clinical records are generating enormous amounts of data amenable to disease modeling, machine learning, and artificial intelligence techniques. Bioinformatics and data science expertise is therefore essential for improved population health. Accordingly, in 2012, the US National Institutes of Health (NIH) in partnership with the Wellcome Trust, and with support from the African Society for Human Genetics, initiated the H3Africa (Human Heredity and Health in Africa) consortium. One of its key goals was to …

Understanding Recruitment To A Randomised Controlled Trial (Rct) During Liver Transplantation: An Observational Mixed-Methods Study Within A Trial (Swat), Katherine Elizabeth Sarah Coppack, Ilya Kantsedikas, Edgar Brodkin, Ee Neng Loh, Gareth Ambler, Suneetha Ramani Moonesinghe, Jeremy Fabes, Vivienne Hannon, Michael Spiro, Duncan Wagstaff

Peninsula Medical School

Objectives Perioperative randomised controlled trials (RCTs) in liver transplantation are relatively infrequent. RCTs performed in this complex patient population need to be robustly conducted to maximise patient benefit and graft utility given the scarcity of donor organs. Recruitment challenges can compromise RCTs and studies in this population face unique challenges due to recipient illness severity, their comorbidities, demographics and the geographical constraints of specialist transplant centres. Emergency presentation and after-hours admission may further limit patients’ capacity or readiness to consider trial participation. This Study Within a Trial (SWAT) specifically explored motivators and barriers to recruitment in patients awaiting liver transplantation.Design …

Banking On Jarkesy, Jacob Cunningham, Todd Phillips

Duke Law Journal Online

The 150-year-old bank regulatory system is under threat. Following the Supreme Court’s landmark decision in Jarkesy, bankers have filed numerous lawsuits challenging the ability of the federal bank regulatory agencies to adjudicate cases in non-Article III tribunals. But unlike the agencies tasked with enforcing the securities, antitrust, and consumer protection laws, the banking regulators lack statutory authority to file cases in federal court. A decision invalidating their in-house adjudicative authority strips of them of any forum in which to file enforcement actions.

This essay argues that these lawsuits should fail. Because the Seventh Amendment jury trial right exempts “public rights,” …

Evaluating Impact Of Occupational Exoskeletons On Physical Fatigue Using Wearable Sensors And Deep Learning, Hardik Vora, Fatemeh Davoudi Kakhki, Armin Moghadam

Faculty Research, Scholarly, and Creative Activity

Musculoskeletal disorders remain a leading source of occupational injury in manufacturing and logistics industries, often resulting from repetitive lifting and load transfer tasks. While back-support exoskeletons have shown promise in alleviating physical strain, their biomechanical impact under realistic task conditions and their integration with intelligent monitoring systems require further exploration. This study investigates the efficacy of a passive lumbar-support exoskeleton in reducing muscle fatigue during manual material handling tasks by combining high-resolution surface electromyography (sEMG) data with a deep learning-based classification framework. Ten participants performed lifting and rotational (twisting) tasks with and without exoskeleton assistance, while EMG signals were collected …

21st-Century Mangrove Expansion Along The Southeastern United States, Lucia I.A. Enes Gramoso, Dustin Carroll, Kyle C. Cavanaugh, Remi Bardou, Michael J. Osland, Tom Van Der Stocken

Faculty Research, Scholarly, and Creative Activity

Warming winter temperatures are driving range expansion of tropical, cold-sensitive mangroves into temperate ecosystems. Along the Atlantic coast of North America, the mangrove range limit is particularly sensitive to climate variability and historical data demonstrate that the mangrove-salt marsh ecotone on this coast has shifted recurrently during recent centuries. However, a comprehensive understanding of how this mangrove-salt marsh ecotone may shift in the future remains lacking. Here, we combine ensemble forecasting of mangrove distribution for the next century with high-resolution oceanographic dispersal simulations, phenological observations, and historical hurricane data to project future mangrove-salt marsh dynamics at the rapidly changing range …

Leveraging Wastewater Resource Recovery To Reduce Landfill Organic Loading: Process Modeling, Environmental, And Economic Impact Assessment, Ahmed I. Yunus, Arjun T. Ramshankar, Zainab O. Akinsemoyin, Thomas Igou, Ameet Pinto, George Fu, Yongsheng Chen, Joe F. Bozeman Iii

Civil Engineering & Construction: Faculty Publications

No abstract provided.

Ai Companions And Adolescent Social Relationships: Benefits, Risks, And Bidirectional Influences, Xiaoran Sun, Yunqi Wang, Brandon Mcdaniel

Health Services and Informatics Research

AI companions (AI-Cs)—rapidly emerging conversational agents built on large language models that can provide personalized humanlike companionship—create unprecedented opportunities for adolescents to form emotional bonds with nonhuman entities during a critical period for social development. In this article, we discuss the interplay between adolescents' use of AI-Cs and their social relationships based on theoretical hypotheses driving research on digital communication and adolescent well-being. We explore the benefits and risks of AI-Cs to social development based on the stimulation hypothesis and the displacement hypothesis: AI-Cs can provide safe spaces for identity exploration and emotional expression, potentially building skills that transfer to …

Cmsi Note 18: Flooding The Zone: The Use Of Civilian Landing Craft (Lcts) In Pla Amphibious Operations, Thomas Shugart, J. Michael Dahm

CMSI Notes

In July and August 2025, China’s People’s Liberation Army (PLA) employed a unique type of civilian deck cargo ship known as a Landing Craft Tank (LCT) to transport military vehicles directly to shore as part of an amphibious landing exercise. While civilian deck cargo ships of this type have been observed in previous PLA over-the-shore logistics exercises, they had only been used to transport vehicles and equipment from port-to-port—simulating the transport of forces into a captured port—not directly to an unimproved beachhead. If the PLA develops the ability to coordinate and employ significant numbers of civilian LCTs to transport forces …

Experimental And Simulation Analysis For Different Pot-In-Pot Indirect Heating Scenarios For Cooking Applications, Pamella K. Kajumba, Jimmy Chaciga, Denis Okello, Karidewa Nyeinga

Tanzania Journal of Science

The paper presents simulation and experimental results to demonstrate heat transfer performance during cooking that can be practical in pot-in-pot arrangements for indirect cooking/heating. The cases included single pots, pot-in-pot with oil, and pot-in-pot with no oil. The aim was to optimize the heat transfer through conduction and the cooking process for a recently developed small-scale sensible heat storage system integrated with a cooking unit. Cooking experiments reported were carried out using an electric hot plate with a power rating of 1.8 kW, 220V. Temperature measurements were recorded using a TC-08 data logger. The heating rates were analyzed for the …

Appropriate Wireless Technology For Blue Data Communication To Enhance Artisanal Fishery, Abdi T. Abdalla, Eva Shayo, Angelina Misso, Baraka Maiseli, Kwame S. Ibwe, Narriman Jiddawi, Moses Ismail

Tanzania Journal of Science

The paper examines the development of a system architecture to support smart fishing. This includes the establishment of a blue data center, which would allow government agencies and research institutions to access fisheries data. The goal is to provide policymakers with the tools they need to efficiently manage artisanal fisheries resources. The architecture also incorporates wireless communication components that are suitable for small-scale fishers in remote areas. The study delves into the selection of appropriate wireless communication technology for transmitting fishing data to the communication center. Factors such as coverage range, data rates, and cost implications are taken into consideration. …

Qualitative And Numerical Observations Into The Career Trajectories Of Early Career Academics: A Mathematical Model Approach, Oluwatayo M. Ogunmiloro

Tanzania Journal of Science

This study develops and analyzes a mathematical model that describes the interplay among different researcher groups within academia by focusing on how variables such as mentorship, access to funding, and academic peer influence affect the career trajectories of early-career, experienced, redundant, and successful researchers. Using stability theory and relevant theorems of differential equations, this study ensures the existence, uniqueness, positivity, and boundedness of the model's solutions. Additionally, the model’s equilibrium states, are analyzed to determine the local asymptotic stability. Numerical simulations using the Runge-Kutta fourth-order (RK4) method, implemented in Python, are performed to illustrate issues related to career growth within …

Single‐Use Versus Multiple‐Use Endotracheal Suction Catheters In Mechanically Ventilated Patients: A Feasibility Randomised Controlled Trial, Mohamed H. Eid, Kevin Hambridge, Patricia Schofield, Jos M. Latour

School of Nursing and Midwifery

BackgroundIn resource-limited settings, single-use open endotracheal suction catheters are commonly used multiple times. The current evidence of this practice on ventilator-associated pneumonia (VAP) among mechanically ventilated patients remains unclear.AimThe aim of this study was to test the feasibility of single-use and multiple-use endotracheal suction catheters flushed with chlorhexidine versus standard care (multiple-use endotracheal suction catheters flushed with normal saline) to reduce VAP in resource-limited intensive care units (ICUs) and evaluate study methods for designing a future definitive randomised controlled trial (RCT).Study DesignA three-armed feasibility RCT was conducted in three ICUs at a university hospital in Egypt.ResultsSixty mechanically ventilated patients were …

Minority Leaders’ Impact On Corporate Diversity And Organizational Change, Nana Kwasi Amponsah

Walden Dissertations and Doctoral Studies

Workplace diversity continues to face criticism due to the limited representation of minority groups, with little progress made in the corporate sector. Despite corporations’ efforts to increase diversity and inclusion in the workplace, a notable lack of minority leadership persists in upper management roles. The purpose of this explanatory sequential mixed-method study was to explore the factors that affect the selection of minority leaders and how corporate executives utilize diversity, equity, and inclusion (DEI) initiatives to foster significant organizational change, even in the face of ongoing underrepresentation in upper management. Social dominance theory, anti-egalitarianism, and social construction theory grounded this …

Characterization Of Inflammatory Pseudotumors In A Large Animal Model Of Liver Cancer, Erik N K Cressman, Samantha Hicks, Natalie W Fowlkes, Danielle L Stolley, Maria Sophia Stenkamp

Faculty, Staff and Student Publications

Background: The development of relevant and robust large animal models of hepatocellular carcinoma is needed to test new therapeutic strategies for this disease. Transgenic approaches hold promise in addressing this complex problem. One such model, the Oncopig, has been reported to develop tumors of up to 4 cm in diameter within 7-14 days at sites of in situ vector inoculation. However, the resulting lesions reportedly contained an extensive inflammatory component that has not been evaluated in detail.

Methods: Herein, we describe our results from multiparametric characterization of the lesions generated using liver biopsy cores incubated in vector solution and replaced …