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Computed Tomography For Four-Dimensional Dose Calculation: Effect Of Detector Array Length, Inhwan Yeo, Qianyi Xu

Department of Radiation Oncology Faculty Papers

PURPOSE: Four-dimensional computed tomography (4DCT) is susceptible to a geometrical error when respiration changes upon patient shift. 4DCT using 16-cm detector arrays, not needing the shift, has been shown to improve geometrical accuracy, compared with a conventional 4DCT (4-cm array), albeit with some Hounsfield unit discrepancies. The 4DCTs were validated for 4D planning.

MATERIALS AND METHODS: A lung-mimicking phantom containing a spherical target with ten respiratory traces and three tumor-shaped targets with their traces was respectively imaged when, to each of the ten-positions/phases, the lung was moved (1) step-wisely by helical scan at each movement (ground truth; 4DCT_GT), …

The Acute Effects Of Heat Exposure On Cognitive Function, René Barbier

Presentations - 2026

Passive heat exposure negatively impacts: •Executive function & response inhibition •Attention & processing speed •Workplace productivity

Older adults face heightened vulnerability to cognitive decline under heat stress (Schlader et al., 2015).

Who is most affected?

•Outdoor & industrial workers •Athletes training in summer heat •First responders (firefighters, EMTs) •Older adults with thermoregulatory decline

San Antonio context: persistent summers, growing population, occupational health implications.

Comparative Analysis Of Mlp And Cnn Models For Cardiac Arrhythmia Classification, Veltman Okey-Ejowhor, Vahid Emamian

Posters - 2026

Electrocardiogram (ECG) is a record of the electric activity of the heart over time. ECG analysis plays a pivotal role in diagnosing critical heart conditions. Significant developments have been made in the realm of deep learning and applied artificial intelligence. These deep learning models have been utilized heavily because of their ability to analyze deep morphological features of each signal. The model architecture used in this study is a convolutional neural network (CNN) combined with a multi-layered perceptron (MLP). The MLP acts as an input filter that classifies normal heartbeat signals from abnormal. The CNN is the second filter in …

The Impact Of Stress On Dream Content, Tessa Duncan, Mason Trevino

Posters - 2026

• This research investigated how daily stress levels influence the intensity of dreams. The study aimed to clarify the relationship between stress and dream intensity, enhancing understanding of stress’s broader effects on mental health. • Building on Rush’s concept of a “goldilocks zone” in the stress scale, where moderate stress benefits well-being while too little or too much stress can cause harm (2024). The current study used the hallucination model of dreaming from Gillespie and Trakas (2024), which views dreams as vivid, perception-like experiences that can amplify emotions. Drawing on Gessert’s methods for measuring stress and nightmare frequency, stress is …

The Effects Of Sour & Spicy Food On Visual & Auditory Reflexes, Aditi Kumar, Alondra-Sophia Martinez, Magdalena E. Saad, Emma J. Welsch

Posters - 2026

• The reflex reaction time measures how quickly the nervous system can respond to a stimulus. • In the experiment, both visual and auditory reflexes were measured to evaluate differences in reaction time after the consumption of sour and spicy foods. • Spices and herbs produce different signals that interact with the nervous system. (McMullen 2024) • Comparing the response times from before and after consumption, this experiment allowed us to determine if different tastes affect reflex reaction times.

Evaluation Of An Affordable Prosthetic Liner In Resource Limited Settings, Samerial Brown

Posters - 2026

The lower limb prosthesis is an important assistive technology for persons with limb amputations and differences. The interface (prosthetic liner) between the rigid prosthetic socket and the residual limb is often made of silicone, urethane or thermoplastic elastomer gel. This material provides cushioning and support as well as suspension for the transtibial (below knee) prosthetic leg. Unfortunately the cost of liners range from $3-$600. This cost precludes its use in resource limited settings such as Sri Lanka. As a result patients are fit with a foam liner which has less cushioning and suspension capabilities than a gel type liner. This …

Does The Placenta Predict Depression During Pregnancy? Investigating Hormonal Links In High-Risk Pregnancies, Sonia Cerrillo, Hanne Hoffmann Phd

Posters - 2026

• Perinatal depression is a common disorder that affects maternal and infant well-being.

• Serotonin is an important mood-regulating neurotransmitter, and reduced serotonin signaling has been linked to depressive symptoms.

• Tryptophan (TRP) is the precursor for serotonin, where most TRP is metabolized through the kynurenine pathway.

• TPH supports serotonin synthesis, while IDO and TDO drive kynurenine production.

• During pregnancy, inflammation and stress may shift TRP away from serotonin, creating a placental “tryptophan steal.”

• We examined whether placental DNA methylation of these genes differs in high-risk pregnancies.

• We hypothesized that placental DNA methylation of genes in …

Using Ai-Based Predictive Scheduling To Improve Patient Flow And Reduce Wait Times In Healthcare Clinics, Oscar Martinez

Posters - 2026

• Healthcare systems face increasing challenges in patient access and wait times
• Average wait times for specialist care continue to rise, creating:
  • Delays in treatment
  • Reduced patient satisfaction
  • Increased system inefficiencies (Sanford, 2025)
• A major contributor is operational bottlenecks, defined as:
  • Points of congestion that slow or disrupt service flow
• Hospitals typically operate under process layouts, which:
  • Handle diverse patient needs
  • Reduce specialization efficiency
• Contributing factors to bottlenecks:
  • Physician shortages and burnout
  • Administrative burden
  • Inefficient scheduling systems (Moura & Pinho, 2025)
• AI offers potential solutions through:
  • Predictive scheduling
  • Automation of administrative processes
  • Data-driven optimization of patient flow

Hyperglycemia And Mycoplasma Pneumoniae Cards Toxin Impacts On Lung Epithelial And Fibroblast Injury And Recovery, Alejandra Y. Delgado, Naila Villagomez, Shuri Magdalene

Posters - 2026

Mycoplasma pneumoniae CARDS toxin induces cytotoxicity and inflammation in lung epithelial cells²·¹⁰·¹¹, while hyperglycemia independently elevates ROS and disrupts fibroblast repair¹·⁵·⁸, contributing to the heightened respiratory infection severity seen in diabetic patients¹. However, the interaction between hyperglycemic conditions and CARDS toxin-induced lung injury remains unexplored.

This study investigates how increasing high-glucose (HG) pre-conditioning modifies CARDS toxin-induced injury and recovery in A549⁶ and IMR-90⁷ cells compared to normal glucose (NG ≈ 5mM) controls. We hypothesized that increasing glucose pre-conditioning concentrations would produce a dose-dependent increase in CARDS toxin-induced oxidative stress¹² and inflammatory cytokine production¹⁵ in IMR-90 and A549 compared with normal …

Umbilical Cord Milking Versus Early Cord Clamping In Late Preterm And Term Neonates Who Are Non-Vigorous At Birth: A Cluster-Randomized Controlled Trial (Cordmilk Trial), Zubair H. Aghai, Sangappa M. Dhaded, S Yogeshkumar, Sunil S. Virnekar, Benjamin L. Leiby, Vinita Jain, Yvonne E. Vaucher, Nitin Chouthai, Meenakshi Girish, Seema Parvekar

Conference Presentation Abstracts

No abstract provided.

Exploring Single Celled Rna Biomarkers Using Deconvolution Analysis For Severe Retinopathy Of Prematurity In Extremely Premature Newborns, Vighnesh Ghatpande, Saachi A. Bodas, Nitin Chouthai

Conference Presentation Abstracts

Background: Timely, precise diagnosis of Retinopathy of Prematurity (ROP) is key to implementing appropriate treatment, as distinctions between mild-ROP and severe-ROP are the primary factors in its characterization. Deconvolution analysis of bulk RNA sequencing is an indirect method to identify static and dynamic molecular and physiological associations.

Objective: The objective of this this study was to evaluate if deconvolution analysis can be used to identify cellular biomarkers of ROP.

Design/Methods: This is a prospective study (IRB#086113MP2E) with a convenience sample size of 8 neonates with no ROP, 6 neonates with mild to moderate ROP (M-ROP), and 7 neonates with severe …

The Role Of Loneliness On College Freshmen Retention, Amy Berg

Libraries Undergraduate Research Award (LURA) Winners

What factors contribute to student retention, dropout, and success within the first semester? We hypothesized that persistent feelings of loneliness across the semester play a major role in a student’s intentions to continue enrollment, and a lack of social connection to the university mediates this relationship. We assessed this in a sample of n = 30 first semester freshman enrolled in a university success seminar across the Fall 2025 semester, of whom n = 8 completed Wave 1 and Wave 4 surveys of a four-wave study spanning the whole semester. We used the 20- item UCLA Loneliness Scale, the 24-item …

Atopic Dermatitis, Children's Mercy Kansas City

Clinical Pathways

No abstract provided.

Caregiver Challenges And Health Access For Individuals With Developmental Disabilities In Mississippi, Kirsten Cunningham

Honors Theses

Current literature has highlighted the health disparities faced by individuals within the disability community and how it affects the care they receive. However, for many individuals with developmental disabilities, they require caregivers to make medical decisions for them. The purpose of this study is to focus on the caregiver’s perspective of caregiver stress, physical access to care, and health literacy to combat the challenges faced when getting access to healthcare resources for individuals with developmental disabilities in Mississippi. The researcher hypothesized, based on the literature review, that caregivers with higher levels of educational attainment would have less caregiver stress, more …

Bridging The Gap: A Trauma-Informed Approach To Real-Time Counselor Support Training At Kesem, Elizabeth Fallon

Capstone Projects

This capstone project involved the development and implementation of a trauma-informed care training program for college-aged counselors within Kesem, a nonprofit organization supporting children affected by a parent or caregiver’s cancer. The project addressed gaps in existing counselor training related to recognizing and responding to trauma in real time. The literature identified increased risk for psychosocial challenges in this population, including anxiety, depression, as well as the importance of peer support, safe environments, and developmentally appropriate communication.

The training program included different modules on trauma, grief, and child development, as well as interactive role-play scenarios tailored to different age groups …

From Theory To Practice: Splint Fabrication Through Occupational Therapy Video Library, Caitlyn Mccaughey

Capstone Projects

This doctoral capstone experience (DCE) highlights the need for educational resources on occupational therapy splint fabrication by producing a comprehensive video library to aid skill acquisition among students and new graduates. This project involved developing 21 tutorial videos featuring detailed, step-by-step demonstrations designed to accommodate visual, auditory, and kinesthetic learning styles amongst individuals. A literature review emphasized the growing popularity of video-based education and the lack of accessible, high-quality splinting resources, with a needs assessment revealing low confidence levels among occupational therapy students due to limited educational support. Through collaboration and integration of evidence-based practices, this project successfully produced an …

Creation And Implementation Of Nature And Sensory Based Therapy Programming To Support The Health And Well-Being Of Catholic Dominican Sisters, Sydney Payne

Capstone Projects

As the older generation ages, diseases such as dementia can cause sensory processing systems to be less efficient. When they become less efficient, it can create confusion and undermine one’s sense of safety (Champagne, 2018 pg 29-30). Engaging in sensory experiences provides support for these deficits while fostering participation in everyday life activities (Champagne, 2018 pg 30). This capstone project included a sensory garden (nature-based therapy) and associated multi-sensory activities. This was done through creation of nature and sensory-based programming, implementation of this programming one-on-one with sisters, two group sensory, dementia-friendly activities, and formation of a sustainability binder. Occupational therapy …

The Bronco Well: An Educational Podcast For Pediatric Caregivers’ Wellbeing & Quality Of Life, Molly Veldheer

Capstone Projects

Pediatric caregivers of children with increased and complex physical, cognitive, and emotional needs are an often-overlooked population. Though their children may be involved in many essential services including occupational therapy, the needs of these caregivers largely go unmet. Occupational therapists are equipped to provide valuable care and education to the entire family and not just their pediatric clients. In efforts to fill the unmet needs, this occupational therapy-based podcast was created as resource for pediatric caregivers about pediatric caregivers. The development of this capstone considered the time, energy, and financial strains that are often placed on pediatric caregivers and determined …

Implementation Of A Cardio Drumming Program To Promote Health And Wellbeing In Community-Dwelling Older Adults, Amanda Moyer

Capstone Projects

This doctoral capstone experience focused on implementation of a cardio drumming program at the Ecumenical Senior Center (ESC), a day center for older adults, in Kalamazoo Michigan. Cardio drumming is a unique way of exercise that combines drumming to upbeat music with an exercise ball, laundry basket, and drumsticks. Cardio drumming is low impact and can be adapted to many different abilities. This form of exercise can be done in a seated or standing position. The program began once a week for 30 minutes but soon increased to two times a week for 35 minutes and lasted 9 weeks due …

Life Skills To Promote Independence Following Discharge From Inpatient Psychiatric Care, Alli Bammert

Capstone Projects

This doctoral capstone experience focused on program development through the creation and implementation of a structured life skills program and the initial planning of a simulated life skills training space within an inpatient psychiatric setting at Kalamazoo Psychiatric Hospital. Individuals with serious mental illness often experience barriers to community reintegration following hospitalization and benefit from opportunities to practice daily living skills prior to discharge (Gibson et al., 2011). In response to this need, a 12-week life skills curriculum was developed and piloted to address topics including daily routines, medication management, emotional regulation, grocery shopping, cooking, employment readiness, technology use, and …

Social Skill Program Development: Social Thinking Curriculum, Anna Holman

Capstone Projects

This capstone project examined the implementation of the Social Thinking It: Tweens and Teens curriculum to support adolescent social participation within a group-based setting. Social participation is a core domain of occupational therapy; however, many adolescents experience challenges with communication, emotional regulation, and peer relationships. This project addressed a gap in structured, evidence-based social skills programming at the capstone site. Primary objectives included implementing the Social Thinking curriculum, facilitating weekly group sessions, evaluating participant engagement, and skill development. Intervention strategies included role-playing, guided discussion, modeling, and reflective activities embedded within the curriculum framework. Outcomes demonstrated increased participant engagement and improved …

Creative Art-Based Program To Address Body Image In Cancer Survivors And Caregivers, Tisa Lightfoot

Capstone Projects

This doctoral capstone experience (DCE) explored the role of occupational therapy in promoting the use of creative art-based interventions to address body image in cancer survivors and caregivers. Within the oncology population, body image concerns are a prevalent psychosocial factor that affects survivors’ self-perception, emotional well-being, and occupational engagement in their daily lives. To address this gap, a six-week program was developed to promote art as a meaningful occupation to support the psychosocial well-being related to body image in cancer survivors and caregivers. Additional initiatives of the program included resource development and integration of education on current literature on the …

Occupational Therapy And Grief: Building Knowledge, Justifying Scope, And Supporting Practice, Jessica Jacques

Capstone Projects

Grief can disrupt individuals’ ability to participate in meaningful daily occupations (Hoppes & Segal, 2010), yet occupational therapy (OT) remains underutilized in grief support. Given OT’s focus on occupational performance, practitioners are uniquely positioned to address the functional and emotional challenges associated with grief. Despite this alignment, a gap exists in structured, occupation-based grief support, as well as limited integration of OT within community-based grief services. This capstone aimed to address this need by developing and implementing grief-informed, occupation-based resources and educational materials. Objectives included revising a grief resource manual, creating evidence-based handouts for community and school settings, promoting sensory …

Occupational Therapy & Zoo Exhibit Design: Embedding Accessibility Within, Jacqui Randall

Capstone Projects

This doctoral capstone project was completed at the Indianapolis Zoo. Zoos and museums infrequently contract, but very few employ an occupational therapist to assist with exhibit design development. An occupational therapy consultant could assess exhibit accessibility and provide potential solutions to make them more accessible and inclusive for individuals with disabilities. The goal of the project was to create a list of refined recommendations to make the oceans building more accessible and incorporate more multisensory experiences when it is renovated in the spring of 2027. Also, the Accessibility and Sensation Among Zoo Exhibits and Interactives: Checklist and Application Guide was …

Developing And Implementing Pediatric Pelvic Health Education Groups For Autistic Youth Focused On Toilet Training, Sasha Poland

Capstone Projects

Occupational therapists (OTPs) have a crucial role in treating pelvic health conditions as toileting is an activity of daily living. However, pelvic health research is primarily focused through a physical therapy lens and doesn’t always address challenges pertaining to children, and even more so neurodivergent youth. Furthermore, there is a gap in the literature in how specifically OTPs can assist in providing pelvic health care to all individuals including neurodivergent youth. The goal of this doctoral capstone was to create and provide educational sessions to educate parents, educators, and BCBAs on the role of pelvic health OT in solving their …

Sensory Processing At A Children’S Advocacy Center: Staff Education And Resource Development To Support Trauma-Informed Care, Hayley Jackson

Capstone Projects

This capstone addresses a critical gap in understanding sensory processing within trauma-informed care for children who have experienced sexual abuse. Occupational therapy (OT) offers a unique perspective for supporting children’s sensory processing and regulation needs; however, OT is not utilized in Children’s Advocacy Center (CAC) settings. This project aimed to enhance understanding of OT's scope within trauma-informed care, provide education on sensory-based strategies, and develop resources to support regulation in clinical, home, and school settings. Project objectives were achieved through the development of caregiver and educator handouts, a SMART room sensory binder, a visual schedule binder, SMART movement cards, and …

Designing Inclusive Dog Training Opportunities For Handlers With Diverse Access Needs: An Occupational Therapy Approach, Lauren Huffman

Capstone Projects

This doctoral capstone focused on designing inclusive dog training opportunities in the community by integrating occupational therapy approaches to empower meaningful participation and increase carryover of skills into daily life. The project addressed a need for options that are supportive of dog owners (typically referred to as “handlers” in the dog training setting) who experience health and learning barriers impacting human-dog interactions and the ability to attend dog training classes in a group setting. Occupational Therapy’s role in adaptive recreation and use of occupation-based practice guided the development of a foundations-level accessible small group class, individual adaptive sessions, and educational …

Enhancing Feeding Skills: Development And Implementation Of A Pediatric Feeding Group Program In An Outpatient Setting, Alexia Spyrka

Capstone Projects

Children with autism spectrum disorder are five times more likely to present with feeding difficulties when compared to the general pediatric population (Baraskewich,et.al., 2021). Pediatric feeding difficulties can include picky eating, restrictive diets, limited independence with feeding skills, and limited food repertoire. Not only can this effect the child’s nutrition and growth but can affect family members as they are additionally focusing on their child's socialization, communication, and regulation. When addressing feeding difficulties, occupational therapy services are provided 1:1 with clients while educating and supporting family members to improve carry over into the home. However, there is a gap in …

Beyond Baby: How Occupational Therapy Supports Families In The Prenatal And Postpartum Period, Taylor Maysonet

Capstone Projects

This doctoral capstone project focuses on the role of occupational therapy in maternal and infant health, supporting families during the prenatal and postnatal period. While occupational therapy has a strong foundation in promoting health, independence, participation and roles and routines, there remains a gap in community awareness of available support for families during this life transition. Many caregivers report feeling underprepared, overwhelmed, and disconnected from resources that could support their physical, emotional, and occupational wellbeing.

The objective of this project was to identify gaps within the interdisciplinary team during the prenatal and postpartum period. From there, I was able to …

An Occupational Therapy Approach To Sensory Education: Training Paraprofessionals To Support Students’ Sensory Needs, Sophia Hubber

Capstone Projects

Sensory processing plays an important role in the development and participation across the lifespan and is a key focus of occupational therapy (OT) in school settings. This doctoral capstone project addresses the gap in sensory education and training among paraprofessionals, who spend much of the day supporting students with the highest level of needs. While occupational therapists have extensive knowledge in sensory processing, their large caseloads often limit the opportunities to provide direct education to staff.

To address this gap, the project involved collaborating with the occupational therapy department, conducting research on sensory processing, and developing five educational videos with …