Digital Commons Network^™

Post-Modeling Adjustments And Delivered Dose Verification Of The 6fff Beam Model Commissioned For The Monaco Treatment Planning System, Grant C. Debevec

LSU Master's Theses

External beam radiation therapy has been shown to be an effective treatment method for tumors and abnormalities of the spine and vertebral region. Treating the spine using a stereotactic body radiation therapy (SBRT) technique can reduce toxicity to the spinal cord. The 6 MV flattening filter free (6FFF) beam model is currently used to plan and calculate dose for SBRT treatment plans, and the treatment plans are delivered using a linear accelerator (LINAC).

The commissioned beam model represents an invariant component of a LINAC. For volumetric modulated arc therapy (VMAT) treatment plans, the multileaf collimator (MLC) positions are changing throughout …

More Than Just A Number: Perspectives From Black Male Participants On Community-Based Interventions And Clinical Trials To Address Cardiovascular Health Disparities., Faith E Metlock, Sarah Addison, Alicia Mckoy, Yesol Yang, Aarhea Hope, Joshua J Joseph, Jing Zhang, Amaris Williams, Darrell M Gray, John Gregory, Timiya S Nolan

Ambulatory and Primary Care Articles

BACKGROUND: Black Americans remain significantly underrepresented and understudied in research. Community-based interventions have been increasingly recognized as an effective model for reckoning with clinical trial participation challenges amongst underrepresented groups, yet a paucity of studies implement this approach. The present study sought to gain insight into Black male participants' perception of clinical trials before and after participating in a community-based team lifestyle intervention in the United States.

METHODS: Black Impact, a 24-week community-based lifestyle intervention, applied the American Heart Association's Life's Simple 7 (LS7) framework to assess changes in the cardiovascular health of seventy-four Black male participants partaking in weekly …

The Dearth Of Knowledge Of Health Insurance Literacy Within The United States, Katherine A. Conzet

Honors Thesis

This literature review and cross-comparison were conducted to combine resources that bring to light the lack of knowledge on health insurance, the impact of this low health insurance literacy (HIL), and the lack of research being done in this subject field. This thesis analyzes and compares different research that measures HIL levels and compares these findings. At the same time, this thesis presents the complex history of health insurance and how this understanding can contribute to lower population HIL and proposes different ways to accurately measure HIL. The purpose is to show the necessity for more research into the field …

Predictors Of Prep Uptake By Black Gay And Bisexual Men In Ohio, Ade Elisha

Walden Dissertations and Doctoral Studies

No abstract provided.

Impact Of Fads Genotype On Polyunsaturated Fatty Acid Content In Human Milk Extracellular Vesicles: A Genetic Association Study, John J. Miklavcic, Natalie Paterson, Jennifer Hahn-Holbrook, Laura M. Glynn

Food Science Faculty Articles and Research

Background

Extracellular vesicles in human milk are critical in supporting newborn growth and development. Bioavailability of dietary extracellular vesicles may depend on the composition of membrane lipids. Single-nucleotide polymorphisms (SNPs) in the fatty acid desaturase gene cluster impact the content of long-chain polyunsaturated fatty acids in human milk phospholipids. This study investigated the relation between variation in FADS1 and FADS2 with the content of polyunsaturated fatty acids in extracellular vesicles from human milk.

Methods

Milk was obtained from a cohort of mothers (N = 70) at 2–4 weeks of lactation. SNPs in the FADS gene locus were determined using …

Measuring The Impact Of Primary Care Team Composition On Patient Activation Utilizing Electronic Health Record Big Data Analytics, Kristen K. Will, Yue Liang, Chih-Lin Chi, Gerri Lamb, Michael Todd, Connie Delaney

Journal of Patient-Centered Research and Reviews

Purpose

Team-based care has been linked to key outcomes associated with the Quadruple Aim and a key driver of high-value patient-centered care. Use of the electronic health record (EHR) and machine learning have significant potential to overcome previous barriers to studying the impact of teams, including delays in accessing data to improve teamwork and optimize patient outcomes.

Methods

This study utilized a large EHR dataset (n = 316,542) from an urban health system to explore the relationship between team composition and patient activation, a key driver of patient engagement. Teams were operationalized using consensus definitions of teamwork from the literature. …

Broken Promises: Prolonged Diminished Quality-Of-Life Among Liberian Ebola Survivors Half A Decade After The 2014-16 West African Outbreak, Jessi Hanson-Defusco, Decontee Davis, Meghana Bommareddy, Zainab Olaniyan

Journal of Social, Behavioral, and Health Sciences

The 2014–2016 Ebola outbreak left thousands of Liberian survivors with severely diminished quality of life. Applying a social determinants framework, this mixed method study investigates to what extent Ebola virus disease (EVD) survivors suffer long-haul psychosocial stress, diminished quality-of-life factors, and the impact of EVD-related service provisions on their ongoing healing. We present the results of a quantitative analysis survey of data collected from 19 Liberian EVD survivors in 2022 using snowball sampling. Additionally, a qualitative analysis of survivor statements helps triangulate key statistical findings and inform causal mechanisms. Survivors report experiencing 5.25 of a total of 7 ongoing stressors …

Respiratory Therapists' Attitudes On Patient Safety And The Use Of Workarounds: A Phenomenological Study, Lee Wisdom

Graduate Theses, Dissertations, and Capstones

Respiratory therapists (RTs) provide cardiopulmonary care and share the essential responsibility of keeping patients safe throughout their healthcare journey. RTs care for patients in various settings and manage mechanical ventilation (life-support), artificial airways, and attend emergencies such as cardiac arrests and other urgent clinical care matters (American Association for Respiratory Care [AARC], n.d.-b). As such, RTs may be exposed to opportunities in their day-to-day routines that influence patient safety. Currently, the literature is limited regarding RTs’ safety attitudes and the use of workarounds in respiratory care in the United States (U.S.). Both safety attitudes and the use of workarounds have …

Targeting Branched N-Glycans And Fucosylation Sensitizes Ovarian Tumors To Immune Checkpoint Blockade, Hao Nie, Pratima Saini, Taito Miyamoto, Liping Liao, Rafal J Zielinski, Heng Liu, Wei Zhou, Chen Wang, Brennah Murphy, Martina Towers, Tyler Yang, Yuan Qi, Toshitha Kannan, Andrew Kossenkov, Hiroaki Tateno, Daniel T Claiborne, Nan Zhang, Mohamed Abdel-Mohsen, Rugang Zhang

Faculty, Staff and Student Publications

Aberrant glycosylation is a crucial strategy employed by cancer cells to evade cellular immunity. However, it's unclear whether homologous recombination (HR) status-dependent glycosylation can be therapeutically explored. Here, we show that the inhibition of branched N-glycans sensitizes HR-proficient, but not HR-deficient, epithelial ovarian cancers (EOCs) to immune checkpoint blockade (ICB). In contrast to fucosylation whose inhibition sensitizes EOCs to anti-PD-L1 immunotherapy regardless of HR-status, we observe an enrichment of branched N-glycans on HR-proficient compared to HR-deficient EOCs. Mechanistically, BRCA1/2 transcriptionally promotes the expression of MGAT5, the enzyme responsible for catalyzing branched N-glycans. The branched N-glycans on HR-proficient tumors augment their …

Columnas: The Honors Program Newsletter At Bentley University, Clara Williams, Micaela Corzo, Naeelah Desanges, Alyssa Galin, Isabella Ramirez

Honors Program

Page 1: WHY ARE NEW YEAR’S RESOLUTIONS SO HARD TO KEEP? By Sahil Raut ’27

Page 2: THE CAPITALIST INFLUENCE ON HIGHER EDUCATION By Kevin Heintz ’26

Page 3: THE IMPORTANCE OF MENSTRUAL HEALTH MANAGEMENT By Sid Goel ’24

Page 4: CAN TECHNOLOGY SOLVE EDUCATIONAL INEQUALITY? By Ariana Ramirez ’27

Page 5: DATA PORTABILITY CAN CHANGE THE DIGITAL WORLD By Kassidi Thompson ’27

Page 6: THE POWER OF VULNERABILITY By Peter Epp ’24

Page 7: THREADS OF BELIEF By Yudao Song ’26

Prevalence Of Adverse Childhood Experiences And Its Dose-Response Association With Anxiety-Related Stress Symptoms In Young Adults Ages 18 To 44 Years Old In The United States, Kenechukwu O. Nwosu

Dissertations and Theses (Open Access)

Introduction: Adverse childhood experiences are common in the United States with about 64% of the population affected. Adverse childhood experiences are predictors of many chronic diseases including mental illnesses like anxiety. Though non-Hispanic whites are mostly afflicted by anxiety compared to their racial counterparts, minority races like non- Hispanic Black/African Americans disproportionately suffer more dire consequences due to the chronicity of untreated conditions which often result from lack of access to care among other barriers. Methods: This is a retrospective cross-sectional study. BRFSS 2022 data set was used to identify 56,598 respondents, ages 18 to 44 years old for analysis. …

Exploring The Medicalization Of Menstruation: Analyzing Menstrual Hygiene Initiatives By Igos, Non-Profits And National Government In Switzerland, Victoria Wright

Independent Study Project (ISP) Collection

Menstrual health serves as a critical indicator of reproductive health. It is pivotal in achieving various Sustainable Development Goals (SDGs) related to women's and girls' comfort, agency, participation, safety, well-being, and dignity (Loughnan et al., 2020). This research investigates the medicalization of menstruation in Switzerland through a mixed-methods approach examining the strategies and roles of key stakeholders such as the WHO, local government initiatives, and NGOs in shaping the landscape of menstrual medicalization.

The findings reveal that while medicalization has brought about progressive changes, including the introduction of menstrual leave policies, it has resulted in a complex regulatory landscape, increased …

A Multi-Ancestry Genetic Study Of Pain Intensity In 598,339 Veterans., Sylvanus Toikumo, Rachel Vickers-Smith, Zeal Jinwala, Heng Xu, Divya Saini, Emily E Hartwell, Mirko Pavicic, Kyle A Sullivan, Ke Xu, Daniel A Jacobson, Joel Gelernter, Christopher T Rentsch, Million Veteran Program, Eli Stahl, Martin Cheatle, Hang Zhou, Stephen G Waxman, Amy C Justice, Rachel L Kember, Henry R Kranzler

Epidemiology and Environmental Health Faculty Publications

Chronic pain is a common problem, with more than one-fifth of adult Americans reporting pain daily or on most days. It adversely affects the quality of life and imposes substantial personal and economic costs. Efforts to treat chronic pain using opioids had a central role in precipitating the opioid crisis. Despite an estimated heritability of 25-50%, the genetic architecture of chronic pain is not well-characterized, in part because studies have largely been limited to samples of European ancestry. To help address this knowledge gap, we conducted a cross-ancestry meta-analysis of pain intensity in 598,339 participants in the Million Veteran Program, …

Bridging The Gap: Strategies For Enhancing Wic Participation Rates In South Dakota, Melissa K. Wyum

Honors Thesis

The Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) is a national program administered by the USDA to State agencies for low-income women and nutritionally at-risk infants and children. South Dakota WIC provides services related to breastfeeding, healthcare referrals, and accessibility/knowledge of nutritious foods. Successes of WIC include improved birth outcomes, decreased healthcare costs, regular immunization rates, establishment of a primary care provider, and improved nutrition status. Although WIC has shown positive health outcomes for mothers and children, the relationship between the barriers of WIC access and resulting health outcomes in South Dakota is unknown. According to the …

The Ethicality Of Gene Alteration In Human Embryos, Alyssa Scudder

Augustana Center for the Study of Ethics Essay Contest

No abstract provided.

Barriers To Opioid Use Disorder Treatment Among People Who Use Drugs In The Rural United States: A Qualitative, Multi-Site Study., T. J. Stopka, A. T. Estadt, G. Leichtling, J. C. Schleicher, L. S. Mixson, J. Bresett, E. Romo, P. Dowd, S. M. Walters, A. M. Young, W. Zule, P. D. Friedmann, V. F. Go, R. Baker, R. J. Fredericksen

Epidemiology and Environmental Health Faculty Publications

BACKGROUND: In 2020, 2.8 million people required substance use disorder (SUD) treatment in nonmetropolitan or 'rural' areas in the U.S. Among this population, only 10% received SUD treatment from a specialty facility, and 1 in 500 received medication for opioid use disorder (MOUD). We explored the context surrounding barriers to SUD treatment in the rural United States.

METHODS: We conducted semi-structured, in-depth interviews from 2018 to 2019 to assess barriers to SUD treatment among people who use drugs (PWUD) across seven rural U.S. study sites. Using the social-ecological model (SEM), we examined individual, interpersonal, organizational, community, and policy factors contributing …

The Role Of Sport For Adolescents: The Effect Of Sport Participation As A Unique Form Of Physical Activity On Mental Health And Overall Subjective Well-Being During Adolescence, Caleb M. Rogers

Senior Theses

Well-being is an extremely multifaceted domain, as there are numerous factors that contribute to one’s way of life. Objective well-being focuses primarily on material factors such as access to food, housing, and a steady household income. Although these factors play a large role, it is important to analyze well-being from the perspective of the individual. Subjective well-being focuses on how one perceives one's own well-being. Physical activity has been well established as one factor associated with improvements within this domain for adolescents. This project investigates the role of one specific form of physical activity during adolescence: sport. The general assumption …

Does Somone’S Sex Affect Abortion Beliefs In The United States, Osondra J. Fournier-Colón

Posters - 2024

Abortions is a medical procedure used to terminate pregnancy whether it be for medical issues or unwanted pregnancy. The procedure effects those who are female, not males. Therefore, since the female sex is the one being affected it may also affect the beliefs made on abortion based on one’s sex.

The Dementia Care Study (D-Care): Recruitment Strategies And Demographic Characteristics Of Participants In A Pragmatic Randomized Trial Of Dementia Care, Mia Yang, Rafael Samper-Ternent, Elena Volpi, Aval-Na'ree Green, Maya Lichtenstein, Katy Araujo, Pamela Borek, Peter Charpentier, James Dziura, Thomas M Gill, Rebecca Galloway, Erich J Greene, Kristin Lenoir, Peter Peduzzi, Can Meng, Jordan Reese, Amy Shelton, Eleni A Skokos, Jenny Summapund, Erin Unger, David B Reuben, Jeff D Williamson, Alan B Stevens

Faculty, Staff and Student Publications

INTRODUCTION: Pragmatic research studies that include diverse dyads of persons living with dementia (PLWD) and their family caregivers are rare.

METHODS: Community-dwelling dyads were recruited for a pragmatic clinical trial evaluating three approaches to dementia care. Four clinical trial sites used shared and site-specific recruitment strategies to enroll health system patients.

RESULTS: Electronic health record (EHR) queries of patients with a diagnosis of dementia and engagement of their clinicians were the main recruitment strategies. A total of 2176 dyads were enrolled, with 80% recruited after the onset of the pandemic. PLWD had a mean age of 80.6 years (SD 8.5), …

A Latter-Day Disease: Mormons And Cholera In The Nineteenth Century, Alexandra L. Wein

Student Publications

Nineteenth-century America saw the emergence of two seemingly parallel entities - the epidemic disease of cholera and the Church of Jesus Christ of Latter-day Saints, better known as the Mormon faith. To understand the intersection of Mormons and cholera, one must look within the interdisciplinary framework of Civil War-era history, religion, and epidemiology. Cholera epidemics in 1832 and 1849 coincided with the mass Mormon migration west, causing great suffering and death for Mormons traveling by land and sea. While their westward exodus exposed them to cholera, their religious teachings also contributed to why they contracted the disease. The Word of …

Rapid Discrimination Of Four Salmonella Enterica Serovars: A Performance Comparison Between Benchtop And Handheld Raman Spectrometers, Quan Yuan, Bin Gu, Wei Liu, Xin-Ru Wen, Ji-Liang Wang, Jia-Wei Tang, Muhammad Usman, Su-Ling Liu, Yu-Rong Tang, Liang Wang

Research outputs 2022 to 2026

Foodborne illnesses, particularly those caused by Salmonella enterica with its extensive array of over 2600 serovars, present a significant public health challenge. Therefore, prompt and precise identification of S. enterica serovars is essential for clinical relevance, which facilitates the understanding of S. enterica transmission routes and the determination of outbreak sources. Classical serotyping methods via molecular subtyping and genomic markers currently suffer from various limitations, such as labour intensiveness, time consumption, etc. Therefore, there is a pressing need to develop new diagnostic techniques. Surface-enhanced Raman spectroscopy (SERS) is a non-invasive diagnostic technique that can generate Raman spectra, based on which …

A Scoping Review On Racial Disparities In South Carolina’S Opioid Epidemic, Jake D'Alto

Senior Theses

This thesis examines racial disparities in opioid-related outcomes within South Carolina, highlighting the disproportionate impact of the opioid epidemic on minority communities. Using a comprehensive literature review methodology, the study analyzes the intersection of race, socioeconomic status, and systemic factors that contribute to heightened risks of opioid misuse and overdose among African American populations. The paper identifies key factors such as poverty, incarceration rates, and limited access to healthcare that exacerbate the opioid crisis in these communities. Additionally, it evaluates the effectiveness of current public health responses and legislative measures in addressing these disparities. The research proposes several actionable interventions, …

An Internal Audit On Patient Safety And Quality Of Services In A Rural Health Training Center, Coimbatore., Josphine Priscilla Charles, Kathiravan Rajendran, Jenit Osborn

Digital Journal of Clinical Medicine

Prioritizing patient safety is imperative for enhancing quality healthcare, especially in lower- and middle-income countries. Recognizing this urgency, India's Ministry of Health and Family Welfare introduced the 'SaQushal' toolkit, empowering health facilities to self-assess and improve their safety practices. This study presents an internal audit at a Rural Health Training Centre (RHTC) in Coimbatore, India, utilizing the 'SaQushal' framework. The facility achieved an overall score of 63%, exceeding the 50% minimum threshold for each domain, indicating commendable efforts towards establishing good quality standards. Notably, all domains scored above 50%, highlighting strengths across various safety dimensions. While acknowledging this progress, the …

Abatacept Pharmacokinetics And Exposure Response In Patients Hospitalized With Covid-19, Stephen J Balevic, Daniel K Benjamin, William G Powderly, P Brian Smith, Daniel Gonzalez, Matthew W Mccarthy, Linda K Shaw, Christopher J Lindsell, Sam Bozzette, Daphne Williams, Benjamin P Linas, John Blamoun, Heta Javeri, Christoph P Hornik

Faculty, Staff and Student Publications

IMPORTANCE: The pharmacokinetics of abatacept and the association between abatacept exposure and outcomes in patients with severe COVID-19 are unknown.

OBJECTIVE: To characterize abatacept pharmacokinetics, relate drug exposure with clinical outcomes, and evaluate the need for dosage adjustments.

DESIGN, SETTING, AND PARTICIPANTS: This study is a secondary analysis of data from the ACTIV-1 (Accelerating COVID-19 Therapeutic Interventions and Vaccines) Immune Modulator (IM) randomized clinical trial conducted between October 16, 2020, and December 31, 2021. The trial included hospitalized adults who received abatacept in addition to standard of care for treatment of COVID-19 pneumonia. Data analysis was performed between September 2022 …

Machine Learning-Enabled Maternal Risk Assessment For Women With Pre-Eclampsia (The Piers-Ml Model): A Modelling Study, Tünde Montgomery-Csobán, Kimberley Kavanagh, Paul Murray, Chris Robertson, Sarah J E Barry, U Vivian Ukah, Beth A Payne, Kypros H Nicolaides, Argyro Syngelaki, Olivia Ionescu, Ranjit Akolekar, Jennifer A Hutcheon, Laura A Magee, Peter Von Dadelszen, Piers Consortium

Faculty, Staff and Student Publications

BACKGROUND: Affecting 2-4% of pregnancies, pre-eclampsia is a leading cause of maternal death and morbidity worldwide. Using routinely available data, we aimed to develop and validate a novel machine learning-based and clinical setting-responsive time-of-disease model to rule out and rule in adverse maternal outcomes in women presenting with pre-eclampsia.

METHODS: We used health system, demographic, and clinical data from the day of first assessment with pre-eclampsia to predict a Delphi-derived composite outcome of maternal mortality or severe morbidity within 2 days. Machine learning methods, multiple imputation, and ten-fold cross-validation were used to fit models on a development dataset (75% of …

Policymaker's Perspectives And Student Experiences Of Bullying At Schools In The Uae: A Mixed-Method Approach, Alfan Saghayir Alketbi

Dissertations

Bullying is a significant issue in schools worldwide, including Abu Dhabi, the UAE. This dissertation aims to explore the dynamics of school bullying and improve anti-bullying interventions through a mixed-method approach. The primary goal is to investigate current anti-bullying efforts in the UAE and develop a comprehensive framework for school-based bullying intervention, considering policymaker perspectives and student experiences.

The study includes a systematic scoping review, qualitative studies with policymakers, a SWOT analysis of Abu Dhabi's anti-bullying approaches, and a cross-sectional survey of students' perceptions, attitudes, and awareness in Al-Ain City. These methods provide an integrated view of bullying in the …

Re-Evaluation Of The Methodology For Estimating The Us Specialty Physician Workforce, W Stephen Black-Schaffer, David J Gross, Zakia Nouri, Aidan Delisle, Michael Dill, Jason Y Park, James M Crawford, Michael B Cohen, Rebecca L Johnson, Donald S Karcher, Thomas M Wheeler, Stanley J Robboy

Faculty, Staff and Students Publications

Increasing pursuit of subspecialized training has quietly revolutionized physician training, but the potential impact on physician workforce estimates has not previously been recognized. The Physicians Specialty Data Reports of the Association of American Medical Colleges, derived from specialty designations in the American Medical Association (AMA) Physician Professional Data (PPD), are the reference source for US physician workforce estimates; by 2020, the report for pathologists was an undercount of 39% when compared with the PPD. Most of the difference was due to the omission of pathology subspecialty designations. The rest resulted from reliance on only the first of the AMA PPD's …

An Oocyte-Specific Cas9-Expressing Mouse For Germline Crispr/Cas9-Mediated Genome Editing, Denise G Lanza, Jianqiang Mao, Isabel Lorenzo, Lan Liao, John R Seavitt, M Cecilia Ljungberg, Elizabeth M Simpson, Francesco J Demayo, Jason D Heaney

Faculty, Staff and Students Publications

Cas9 transgenes can be employed for genome editing in mouse zygotes. However, using transgenic instead of exogenous Cas9 to produce gene-edited animals creates unique issues including ill-defined transgene integration sites, the potential for prolonged Cas9 expression in transgenic embryos, and increased genotyping burden. To overcome these issues, we generated mice harboring an oocyte-specific, Gdf9 promoter driven, Cas9 transgene (Gdf9-Cas9) targeted as a single copy into the Hprt1 locus. The X-linked Hprt1 locus was selected because it is a defined integration site that does not influence transgene expression, and breeding of transgenic males generates obligate transgenic females to serve as embryo …

Addressing Subject Heterogeneity In Time-Dependent Discrimination For Biomarker Evaluation, Xinyang Jiang, Wen Li, Ruosha Li, Jing Ning

Faculty, Staff and Student Publications

Accurate discrimination has been the central goal in identifying biomarkers for monitoring disease progression and early detection. Acknowledging the fact that discrimination accuracy of biomarkers for a time-to-event outcome often changes over time, local measures such as the time-dependent receiver operating characteristic curve and its area under the curve (AUC) are used to assess time-dependent predictive discrimination. However, such measures do not address subject heterogeneity, although the impact of covariates including demographics, disease-related characteristics, and other clinical information on the discriminatory performance of biomarkers needs to be investigated before their clinical use. We propose the covariate-specific time-dependent AUC, a measure …

Lay Rescuer Equipment Preferences And Efficacy During A Simulated Drowning Event, Alison M. Miller, William D. Ramos, Kristina R. Anderson, Jill Cuvala

International Journal of Aquatic Research and Education

During a drowning incident where a lifeguard is not present, a bystander – referred to as a lay rescuer - may put themselves in danger by attempting a rescue. When lay rescuers can avoid entering the water by using rescue equipment to help a drowning victim, it serves to not only help the person actively drowning, but also provides a layer of protection to a lay rescuer. This study sought to examine the following questions: (a) which pieces of rescue equipment were preferred by lay rescuers at pre-determined short and long distances, (b) do lay rescuers select appropriate rescue equipment …