Digital Commons Network^™

Strategizing Towards The Future Hospital: A Systems Thinking Approach, Ashish Kumar, Sean Shao Wei Lam, Sze Ling Chan, Yingqi Xu, Yao Ge, Geoffrey Kah Tack Gui, Hiang Khoon Tan

Research Collection School Of Economics

Background: The complex systemic nature of Future Hospital design in the rapidly ageing city-state of Singapore calls for systems thinking. We apply this approach to answer two research questions: (i) What are the variables that drive the present and future dynamics of the Future Hospital system? (ii) How are these driving variables related? Methods: Causal loop diagrams (CLDs) were developed collaboratively by a cross-functional system modelling team through group modelling discussions and reviews, totalling 20 sessions. Network analysis of the resulting CLDs was used to identify dominant variables. Results: Seven interlocking CLDs (national view, cluster view, and study hospital top …

Kenyon Collegian - May 1, 2025

The Kenyon Collegian

No abstract provided.

The Augmentation Of A Solar Panel Lab For The Chemical Engineering Curriculum To Introduce Sustainability Principles, Lane A. Wilkins

Chemical Engineering Undergraduate Honors Theses

Photovoltaic solar cells are utilized in solar panels to convert sunlight into usable electricity. Since the energy derived from solar panels produces far less greenhouse gas than typical fuels such as coal and natural gas do, it is considered a clean source of energy and is vital to sustainability efforts. Sustainability is often defined by three pillars: environmental, social, and economical. Solar energy incorporates each of these pillars into its process, allowing it to be an effective tool to teach sustainability to students. A previously written lab that employs solar panels focused on the efficiency of converting light into electricity. …

Evaluating Fly-Ash As A Sustainable Solution For Contaminant Removal From Wastewater, Calyn Wisdom

Chemical Engineering Undergraduate Honors Theses

Access to clean and safe water is an escalating global concern due to the persistent presence of toxic contaminants in aquatic environments. Among these, synthetic dyes and per- and polyfluoroalkyl substances (PFAS) represent two distinct yet significant classes of pollutants, both posing serious environmental and public health risks. Dyes in water contribute to intense coloration, elevated chemical and biological oxygen demand (COD and BOD), reduced light penetration, and disruption of aquatic ecosystems, with potential health risks to humans upon exposure. PFAS, often termed "forever chemicals," are synthetic organofluorine compounds associated with a range of adverse health effects, including endocrine disruption, …

Engaging Future Engineers: Utilizing Ai-Generated Video To Promote The Chemical Engineering Profession, Madeline G. Mondebello

Chemical Engineering Undergraduate Honors Theses

The expected incline of the chemical engineering profession faces a growing need to attract the next generation of prospective students. This research explores the use of artificial intelligence (AI) software to create an innovative form of media fit for secondary school and early college outreach. The pre- and post-video questionnaires were taken by a voluntary population comprised of high school students, college students, and parents. Overall, the feedback received was generally positive but indicated that the AI avatars and the lip-sync discrepancies may disrupt the video more than enhance it. In the future, a larger population will be surveyed to …

Barriers And Supports For Latinx Students Pursuing Higher Education, Ashanti Salazar

Curriculum and Instruction Undergraduate Honors Theses

Latinx students make up a growing portion of the student body in Northwest Arkansas, yet they continue to face unique barriers in their pursuit of higher education. This study explored senior Latinx students’ perceptions of barriers and supports they encounter as they begin the college enrollment and admissions process. This research takes place at Valley High School, a majority-Latinx public school in Northwest Arkansas. My intention was to better understand how financial concerns, access to college knowledge, staff support, and school-based resources shape their school experiences, future aspirations, and decision to pursue college after high school. A quantitative approach was …

Breakthrough: How Committed, Long-Term Supports For Middle And High School Students Help Unlock The Power Of Education And Create A Lifetime Of Opportunity, Anastasia L. Borowski

Curriculum and Instruction Undergraduate Honors Theses

This project explores the impact of Breakthrough, a program dedicated to supporting first-generation college-bound students, through the lens of a teaching fellow's summer experience. With a mission to grow educational opportunity, Breakthrough provides academic enrichment, mentorship, and support starting in middle school to ensure college becomes an option for all of its students.

This research highlights experiential data from a teaching fellow’s week-by-week responsibilities. This project seeks to share the stories of different roles within the program and their influence on student outcomes, academic pathways, and personal growth. The research highlights the unique structure of Breakthrough’s support system and its …

Navigating Challenges In Palliative Care: A Survey On Asco Guideline Adherence Among Health Care Providers In Low- And Middle-Income Countries., Cristiane Decat Bergerot, Enrique Soto-Perez-De-Celis, Chadane Thompson, Rushil Patel, Jafar Al-Mondhiry, Tingting Zhang, Nathasha Dhawan, Darcy Burbage, Joseph Mccollom Do, Mazie Tsang, Ramy Sedhom, William E Rosa

PCI Publications and Projects

PURPOSE: Integrating palliative care into oncology is essential, yet disparities in access and quality persist, particularly in low- and middle-income countries (LMICs). The ASCO guidelines advocate for early, routine, interdisciplinary palliative care for patients with advanced cancer. Barriers to implementing these recommendations include resource limitations, inadequate training, and cultural perceptions. Recognizing these challenges is essential for improving equitable access to palliative care worldwide.

METHODS: This prospective survey assessed adherence to ASCO recommendations for palliative care integration among LMIC health care providers (HCPs). Participants were recruited via e-mail, social media, and a list of members involved in the ASCO Palliative Care …

Enhancing Asphalt Mix Design Through Film Thickness And Bailey’S Gradation Method, Lydia Quinn

Civil Engineering Undergraduate Honors Theses

Contemporary asphalt research aims to strike a balance between rutting and fatigue cracking to enhance pavement longevity. The performance of asphalt mixtures is influenced by factors such as aggregate gradation and asphalt film thickness. Although gradation typically adheres to the mid-gradation method, asphalt film thickness is included in certain mix designs, even though it is not universally regarded as an essential parameter. Nonetheless, no current method primarily addresses both gradation and asphalt film thickness together. In this research, aggregate gradations were designed using the principles of Bailey’s method along with various other criteria such as control points, the dust to …

Assessing The Fate Of Antibiotic Resistance Genes In Wastewater Treatment Processes, Gunter A. Campbell

Civil Engineering Undergraduate Honors Theses

The increasing need for clean water has paved the way for the creation of systems for reusing water, such as wastewater treatment plants (“WWTPs”), to provide potable water. But in recent years, such systems have raised concerns about the distribution of antibiotic resistance genes (“ARGs”). Bacteria are adapting to antibiotics by the evolution of resistance mechanisms, such as high mutation rates and horizontal transfer. The presence of ARGs, particularly tetracycline ("tetA") resistance genes, in wastewater effluents is of concern, as they can survive treatment, spread to bodies of water, and pose a threat to human health. In this study, the …

Organizational Care: The Formation And Reproduction Of Social Support Structures In Nonprofit Organizations, Ella Stanley

Communication Undergraduate Honors Theses

Through past literature it has been established that nonprofit employees are prone to experience increased levels of stress and burnout due to the emotionally taxing nature of their jobs. Social support is a communicative transaction between individuals that has been proven to mitigate the negative impacts that both stress and burnout can cause employees to face. Previous studies on social support have focused on healthcare workers and nonprofit volunteers, while this study aims to understand the specific social support structures that are prominent within nonprofit organizations to provide support for employees. This study utilizes structuration theory to explore the structures …

Tumoral And Circulating Genomic Landscape Inform Survival Differences In Colorectal Carcinomatosis, Michael G White, Reed I Ayabe, Mohammad A Zeineddine, Fadl A Zeineddine, Abdelrahman M G Yousef, Mahmoud Yousef, Norman J Galbraith, J Bryan Iorgulescu, Christopher Scally, Keith Fournier, Timothy E Newhook, Nancy Y You, Jason Willis, Scott Kopetz, George J Chang, John Paul Shen, Abhineet Uppal

Faculty, Staff and Student Publications

Colorectal peritoneal metastases (CPM) are the third most common site of metastatic spread of colorectal cancer and are associated with worse survival than other sites of metastatic disease. In recent years tumoral circulating tumoral DNA (ctDNA) mutational status has been increasingly utilized in clinical decision making for metastatic colorectal cancer patients despite its utility in CPM being poorly understood. Here we describe standard of care performed mutational profiles and associated outcomes for unresectable CPM patients, with a contextual comparison to 160 unresected colorectal liver metastases (CLM) patients. Of 508 patients, 288 (57 %) had CPM alone and 220 (43 %) …

Using A Surgical Risk Predictor To Estimate Percutaneous Cryoablation Adverse Event Risk: A Single Center Comparative Analysis, Prisha Patel, Koustav Pal, Hadi Ahmed, Bill Tang, Iwan Paolucci, Mohammad Khavandi, Peiman Habibollahi, Ketan Shah, Steven Y Huang, Bruno C Odisio, Sanjay Gupta, Kamran Ahrar, Steven Yevich, Joshua D Kuban, Alda Tam, Rahul A Sheth

Faculty, Staff and Student Publications

Objective: To evaluate the relevance of established surgical risk calculators for predicting complications in patients undergoing percutaneous lung cryoablation (PLC).

Methods: The institution's database was queried for PLC procedures from March 2015 to May 2024, excluding those patients with concomitant local therapies or five or more lesions treated in a single setting. Demographics, frailty metrics as defined by the surgical literature, and procedural variables were collected. To evaluate the suitability of surgical risk estimate calculators, the requisite demographic data were input into the American College of Surgery surgical risk calculator; estimates for length of stay (LOS), serious complications, 30-day readmission, …

Natural History Models For Lung Cancer: A Scoping Review, Renu Sara Nargund, Sayaka Ishizawa, Maryam Eghbalizarch, Paul Yeh, Seyyed Mostafa Mousavi Janbeh Saray, Sara Nofal, Yimin Geng, Pianpian Cao, Edwin J Ostrin, Rafael Meza, Martin C Tammemägi, Robert J Volk, Maria A Lopez-Olivo, Iakovos Toumazis

Faculty, Staff and Student Publications

Introduction: Natural history models (NHMs) of lung cancer (LC) simulate the disease's natural progression providing a baseline for assessing the impact of interventions. NHMs have been increasingly used to inform public health policies, highlighting their utility. The objective of this scoping review was to summarize existing LC NHMs, identify their limitations, and propose a framework for future NHM development.

Methods: We searched MEDLINE, Embase, Web of Science, and IEEE Xplore from their inception to October 5, 2023, for peer-reviewed, full-length articles with an LC NHM. Model characteristics, their applications, data sources used, and limitations were extracted and narratively synthesized.

Results: …

Dose Prediction Via Deep Learning To Enhance Treatment Planning Of Lung Radiotherapy Including Simultaneous Integrated Boost Techniques, Wenhua Cao, Mary Gronberg, Stephen Bilton, Hana Baroudi, Skylar Gay, Christopher Peeler, Zhongxing Liao, Thomas J Whitaker, Karen Hoffman, Laurence E Court

Faculty, Staff and Student Publications

Background: Recent studies have shown deep learning techniques are able to predict three-dimensional (3D) dose distributions of radiotherapy treatment plans. However, their use in dose prediction for treatments with varied prescription doses including simultaneous integrated boost (SIB), that is, using multiple prescription doses within the same plan, and benefit in improving plan quality should be validated.

Purpose: To investigate the feasibility and potential benefit of using deep learning to predict dose distribution of volumetric modulated arc therapy (VMAT) including SIB techniques and improve treatment planning for patients with lung cancer.

Methods: The dose prediction model was trained with 93 retrospective …

Identification, Removal, And Characterization Of Microplastics From Pvamu Wwtp Effluent Using Ceramic Membranes, Ogboru O. Chujor

All Theses

This study evaluated a 1.4 µm ceramic membrane's effectiveness in removing microplastics from wastewater, focusing on characterization via FTIR spectroscopy. Microplastics, including fibers, fragments, and microbeads (1-2500 µm), were visually identified and counted under an electron microscope, achieving a 94% TSS reduction and a 35.4% microplastic recovery rate. FTIR analysis identified key polymers like polyethylene, polypropylene, and polystyrene, with distinctive peaks for polyester (1624 cm−1, 1737 cm−1) and cotton (1095 cm−1, 1119 cm−1, 1151 cm−1), indicating polymer degradation through spectral signs of carbonyl groups. Micro-FTIR imaging, enhanced by dyes like DANs under fluorescence and Rose Bengal, pinpointed polymer sources and …

Final Butte Priority Soils Operable Unit (Bpsou) Unreclaimed (Ur) Sites: Ur-35 Remedial Action Work Plan (Rawp), Pioneer Technical Services, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Mixing-Controlled Compression Ignition Of Ethanol Using Exhaust Rebreathe At A Low-Load Operating Condition—Single Cylinder Experiments In A Heavy-Duty Diesel Engine, Tyler Johnston, Jared Zeman, Adam Dempsey

Mechanical Engineering Faculty Research and Publications

As pollutant emissions regulations in the heavy-duty sector become further stringent, the energy requirements in this sector continue to increase. Due to the high-power density and operating period requirements within this sector, full electrification is challenging. A viable solution to meet the stringent requirements for criteria pollutant and greenhouse gas (GHG) emissions is the use of low carbon renewable fuels. Low carbon renewable fuels are desirable due to their lower carbon content per unit energy compared to conventional fossil diesel fuel. However, implementing some low carbon renewable fuels in the heavy-duty sector poses challenges due to their low reactivity and …

Assessing The Implicit Prices Of Health And Wellness Product Attributes In Pet Food: A Hedonic Analysis Approach, Lonnie Hobbs Jr., Andrew Anderson

Agricultural Economics and Agribusiness Faculty Publications and Presentations

Here we examine product attributes present in dry dog food to show there exist potential price premiums and discounts associated with health and wellness attributes in dry dog food. The findings indicate price premiums are associated with attributes related to digestion and allergy care. Pricing discounts are found to be associated with immune support and dental attributes. The results of this study are anticipated to be a starting point for more sophisticated and dynamic analysis of pricing and willingness-to-pay studies in the pet food industry.

Enhanced Post-Capture Automatic White Balance For Srgb Images, Eric Huang

Master's Theses

Automatic white balancing (AWB) aims to correct color casts caused by varying illumination conditions, typically assuming access to RAW sensor data. However, many real-world applications involve only sRGB images that have already been processed by in-camera pipelines. In these cases, traditional AWB algorithms often underperform due to the nonlinear transformations done by these pipelines.

This thesis builds upon a data-driven color correction framework introduced by Afifi et al. that relies on RGB-UV histograms and learned color transforms. A revised automatic white balancing (AWB) framework that improves both color accuracy and runtime efficiency is proposed. A fallback routine is implemented to …

Improved Management Strategies For Botrytis Fruit Rot, Macrophomina Root Rot, And Verticillium Wilt In California Strawberry Production, Joseph A. Ramirez

Master's Theses

Strawberry production in California is limited by plant diseases such as Macrophomina root rot (MRR) caused by Macrophomina phaseolina, Verticillium wilt (VW) caused by Verticillium dahliae, and Botrytis fruit rot (BFR) caused by Botrytis cinerea. Current disease management strategies are compromised due to fumigant regulations or ineffective disease management practices. This thesis investigated methods to potentially improve the management of these three diseases. Two host plant resistance evaluations for MRR and VW were conducted for the 2022-2023 and 2023-2024 growing seasons. Sixty-three strawberry genotypes were screened in both years. All plants were exposed to the pathogen via artificial …

Fostering Positive Bonds: Exploring Key Influences On Foster Youth-Foster Parent Relationships, Maria Baldivid, Karen Cedano

Electronic Theses, Projects, and Dissertations

Each year, thousands of children enter the U.S. foster care system and spend a significant amount of time in out-of-home care. Unfortunately, many of these children face placement instability, exacerbating the stress and trauma they undergo in addition to the inherent challenges of being in foster care. Recognizing the pivotal role of the foster youth-foster parent relationship due to the prolonged time spent in foster homes, this study aimed to explore influential factors in developing positive relationships from the perspective of former foster youth. Employing a qualitative research design, the study conducted individual virtual interviews, and subsequent data analysis identified …

The Effectiveness Of School-Based Mental Health Services On School-Aged Children's Mental Health, Melanie Speer, Carolina Martinez

Electronic Theses, Projects, and Dissertations

The presented study intended to determine the impact a local School- Based Mental Health (SBMH) program had on the Mental Health (MH) symptoms of school-aged children receiving services. The purpose of the study was to evaluate the effectiveness of the SBMH program by comparing the intensity of students’ mental health symptoms pre and post treatment services. Conducting the study was significant, as the results highlighted the need for SBMH services by emphasizing on the impact on the mental and behavioral health symptoms of school-age children. Researcher’s utilized data analysis which consisted of thirty random samples of secondary/archival data. This study …

Evaluation Of The Implementation Of Foster Youth Independent Living Programs In The State Of California, Ingrid Flores

Electronic Theses, Projects, and Dissertations

Foster youth transitioning into adulthood often confront a myriad of challenges stemming from limited social capital and unstable support systems. The transition out of foster care, particularly for Transitional Age Youth (TAY), is fraught with barriers including disconnection from familial ties, inadequate knowledge regarding higher education, financial instability, unemployment, and housing insecurity. In 2021, approximately 4,920 foster children aged out of the system, facing the option to participate in extended care programs designed to facilitate their transition into independent living. Despite these programs, many youths struggle to achieve self-sufficiency. Key legislation, including the Child Abuse Prevention and Treatment Act, and …

Domestic Violence Among African American Women, Tamika Palmer

Electronic Theses, Projects, and Dissertations

This study explored how well social service providers understood barriers and racial differences in domestic violence among African American women. This study raised the need to examine further social service providers' knowledge of cultural competency and systemic challenges. This study consisted of a qualitative study that gathered seven social service provider's perspective through an interview guide. Thematic analysis data gathered during interviews was used in this study to identify the adverse effects within this population. The findings of this research study contribute to social work practice by providing insight into racial challenges within the support systems that may affect African …

A Comparison Of Depression And Anxiety Severity Within Neurotypical And Neurodivergent Lgbtq+ Individuals, Madison Nicole Napoli

Electronic Theses, Projects, and Dissertations

Knowledge on the mental health struggles experienced by the LGBTQ+ and neurodivergent (ND) communities has been slowly growing. However, research on the mental health of ND LGBTQ+ individuals is incredibly underrepresented in academic literature. This study sought to answer whether ND LGBTQ+ individuals with autism, ADHD, and/or dyslexia score higher on the PHQ-9 depression and GAD-7 anxiety scales compared to LGBTQ+ individuals that do not have a neurological condition. This study employed quantitative design and utilized a Qualtrics survey to obtain data, which was then analyzed using IBM SPSS version 29. The data found that LGBTQ+ participants with a neurological …

Parent-Child Contact In Family-Focused Programs For Incarcerated Individuals, Carol Marie Nettie Mcdonald

Electronic Theses, Projects, and Dissertations

The following research study will evaluate family-focused programs offered to incarcerated individuals and determine if these programs are hindered when there is little to no contact between parents and children during incarceration. Family-focused programs include parent/child bonding, and/or parenting classes and other similar programs. The research method that will be used in this study is a qualitative design and will gather data through interviews of formerly incarcerated individuals as well as former children (now adults) who have been involved in family programming. The study will also gather data from licensed clinical staff who have been involved in related programming while …

Unintended Consequences: How Direct Cash Payments To Families Experiencing Poverty Lowered Child Poverty Rates In The United States, Wayne Dunn

Electronic Theses, Projects, and Dissertations

Child poverty has adverse effects for the children who experience it and it has long term social and economic consequences into adulthood. This policy analysis looks at the policy choices America has made in addressing child poverty and what effects, if any, those policies have had. After reviewing traditional in-kind policy options for addressing child poverty, this article focuses on the decreases in the child poverty rate that occurred with the passage of pandemic era legislation that provided direct cash assistance to all Americans. Because the assistance programs only happened in two consecutive years and were terminated at the end …

Black Events As Narrated By Black People: Contextualizing America’S Framing Of Progression In News, Social, And Academic Writing, Tyrina Horton

Electronic Theses, Projects, and Dissertations

This paper is a critical examination of collective and public memories of public events that impact Black lives as constructed in news, social, and academic writing. Using Black mundane life to explore and build localized context and attitudes towards these events, I examine whether the collective memory of an event, as framed by public discourse, accurately portrays how Black communities experienced them. This paper explores what it means for Black people, to experience a disconnect with written accounts of public events that do not properly account for the many layers of Black experience, highlighting where there’s a failure to tell …

The Development Of Magmas Inhibition As A Potential Therapeutic Target In Temozolomide Resistant Glioma, Jennifer Duyen Tran

Electronic Theses, Projects, and Dissertations

Glioblastoma (GBM) is a highly aggressive brain tumor that remains a significant challenge in neuro-oncology today. Approximately 90% of GBM patients experience tumor recurrence within one to two years of diagnosis. Therefore, due to its high resistance to conventional therapies, new treatment strategies are urgently needed. The current standard of care for GBM is the chemotherapeutic Temozolomide (TMZ). TMZ is an oral alkylating agent, it functions by delivering a methyl group to purine bases. The development of resistance to TMZ is partially regulated by the DNA repair enzyme O6- methylguanine-DNA methyltransferase (MGMT). Despite the potential shown by MGMT promoter methylation …