Medicine and Health Sciences Commons^™

Orthographic Representations In American Sign Language Fingerspelling, Zed Sehyr, Lauren Fillet, Kiana Billot-Vasquez, Emily Saunders, Karen Emmorey

Communication Sciences and Disorders Faculty Articles and Research

This study examined fingerspelling accuracy and error patterns in deaf American Sign Language (ASL) signers and written spelling in hearing English speakers to investigate how orthographic representations are shaped by phonological, visual, and motor encoding strategies. Deaf participants (n = 39) completed a fingerspelling repetition task, while hearing participants (n = 35) completed a written dictation task using the same word and pseudoword stimuli. While overall accuracy did not differ significantly between groups, deaf participants exhibited qualitatively distinct error patterns, including higher rates of deletions and transpositions, compared to hearing participants who made more substitution errors. Deaf participants also produced …

Left Out And At Risk: Post-Pandemic Continuation Of Organizational Service Reduction In Metropolitan New York City Coincides With Rise In Opiate Use And Mental Health Problems For Latinos, Ruth Lin Campbell, Smita Ekka Dewan

Publications and Research

Increasing opiate use and mental health problems among younger and older Latinos in urban US contexts prompted this investigation into the organizational resources that facilitate help-seeking efforts of Latinos in New York State (NYS). Guided by a Vulnerability Model and a framework of organizational enabling resources, this study used complementary longitudinal and cross-sectional designs. The longitudinal component examined changes in levels of organizational facilitators for Latino substance use disorder (SUD) help-seeking in Downstate NYS across three time periods, while the cross-sectional component compared post-pandemic facilitator levels across service types and regions. A convenience sample of 241 SUD clinicians participated in …

The Legacy Of Lead: Lead Exposure's Harmful Effects And Its Concentration In Poc Communities, Layla Sophronia Barber

Student Theses 2015-Present

This thesis examines the disproportionate burden of lead exposure carried by low income, POC communities. The systemic nature of this problem is a symptom of a longstanding legacy of environmental injustice in the United States. Decades of federal neglect are reflected in the higher statistics of lead exposure and poisoning in predominantly black communities. While it is understood that lead exposure poses a serious threat to physical health and early cognitive development, there is a discouraging lack of urgency to remove the toxin from non-wealthy communities. The material covered by this thesis aims to identify and correct the discriminatory social …

Vision Remediation And Functional Participation For Individuals With Acquired Brain Injuries, Alina Randall

OTD Capstone Projects

This doctoral capstone project was completed in partnership with Neuro Therapy Nashville (NTN), a privately owned, outpatient neurologic rehabilitation clinic in Brentwood, TN. NTN offers occupational therapy, physical therapy, speech therapy, and counseling services to individuals with acquired brain injuries, with an emphasis on stroke, concussion, and vision remediation. The goal of the project was to increase access and availability of evidence informed resources for vision remediation and occupational therapy for individuals with acquired brain injuries. The outcomes of the project include a pilot research study which will be used to inform future analysis of vision remediation in occupational therapy, …

True North: Full Issue Download

Quill & Scope

Silence is embedded into the life of medical students. Silence pierces the air when you are standing in the back of a patient room observing the conversation, feet aching, wondering if your presence is unnecessary and overwhelming for the patient. We are transient members of the healthcare team. We contribute to patient medical records with out notes and bedside conversations, yet we lack power in the system---the authority to sign orders, be responsible to true coordination of care, the autonomy that residents wield to make healthcare decisions.

It is easy to lose your sense of self in this silence. We …

Bio 340 Final Project: Rural Population Structure And Food Production Interact To Shape Global Undernourishment, Ava Ripanti

Biology Student Scholarship

Ava Ripanti - Environmental Biology '27

Undernourishment remains a major global public health challenge, reflecting the proportion of a population lacking sufficient dietary energy intake. While food availability is central to food security, undernourishment is also shaped by structural and socioeconomic factors such as population distribution and access to resources. Although rural populations are closely tied to agriculture, they often experience higher food insecurity due to limited infrastructure, market access, and healthcare. Prior research emphasizes that broader determinants, particularly inequality and development, are stronger predictors of undernourishment than agricultural output alone, that food insecurity exists in both rural and urban …

Mental Health Screening For The Military Spouse: Prevention In Practice, Lura Allison Mcgrath

Doctor of Nursing Practice (DNP) Translational and Clinical Research Projects

Abstract

In recent years, a focus on mental health has moved to the forefront of healthcare. This is especially true when caring for United States military service members. The military spouses of these service members also struggle and suffer from mental health disorders. However, the mental health needs of military spouses often receive insufficient attention. Research shows military spouses are at an increased risk of developing mental health disorders and/or suffering from mental illness. A large contributor is the impact of the military lifestyle and its challenges for these spouses. However, research also reveals there has been minimal effort put …

Bacteriophage Therapy For Klebsiella Pneumoniae: Phage Screening And Efficacy Assessment In Macrophages/Neutrophils And Mouse Model, Mounika Duggineni

Biotechnology Theses

Klebsiella pneumoniae causes infections such as pneumonia and urinary tract infections, necessitating alternative therapies. As an emerging MDR pathogen, evaluating newer therapeutic strategies is essential. This study utilized bacteriophages and Klebsiella pneumoniae strains kindly provided by Dr. John, who previously isolated and characterized broad-host-range bacteriophages from hospital wastewater targeting diverse clinical K. pneumoniae isolates. Among fifteen lytic bacteriophages identified across multiple genera, bacteriophage #418 was selected and purified using ultrafiltration, yielding higher functional titers than PEG-based methods. In vitro assays showed Bacteriophage #418 nearly killed bacteria after 2 hours of co-incubation. Ex vivo studies using healthy donors human macrophages …

Implementation Of A Planned Extubation Nurse-Led Safety Bundle In A Pediatric Cardiac Intensive Care Unit, Broderick Sutton

Doctor of Nursing Practice Final Project Abstract

Purpose: To implement and evaluate a nurse-led planned extubation safety bundle designed to improve nurse preparedness, interdisciplinary communication, workflow consistency, and confidence during planned extubation events in a pediatric Cardiac Intensive Care Unit (CICU).

Background: Planned extubation in critically ill pediatric cardiac patients requires effective interdisciplinary coordination. Variability in nurse preparation, communication, and knowledge of sedation pharmacokinetics contributed to workflow inefficiencies and patient safety concerns. Evidence supports standardized nurse-led protocols to improve extubation readiness and reduce practice variability.

Methodology: A prospective pre-post quality improvement project was conducted over eight weeks in a pediatric CICU. The intervention included a nurse-led planned …

Modeling Individual Self-Protective Behavior During Epidemics, Geonsik Yu, Michael J. Garee, Mario Ventresca, Yuehwern Yih

Faculty Publications

Protecting public health from infectious diseases requires collective action, as individual behaviors—such as vaccination and mask-wearing—directly influence disease dynamics. During the COVID-19 pandemic, unexpected public responses often undermined the effectiveness of interventions, highlighting the need to understand collective behavioral patterns and motivations to design more effective mitigation strategies. This study presents an agent-based simulation model that captures how individuals adjust self-protective behaviors based on evolving opinions about disease risk and examines how these decisions interact with external factors, such as public health interventions, to shape collective outcomes. To improve the representativeness of the simulated population, multiple datasets were integrated to …

Tunable Tripcides Suppress Virulence Factor Secretion During Staphylococcus Aureus Infection And Kill Dormant Cells, Hasan Tükenmez, Taylor M Nye, Suzanne Hickerson, Chloe L P Obernuefemann, Jerome S Pinkner, Karen W Dodson, Michael G Caparon, Scott J Hultgren, Et Al.

2020-Current year OA Pubs

Antimicrobial resistance (AMR) in common bacterial pathogens, including methicillin-resistant

Inflammatory Markers In The Emergency Department And Ptsd Symptoms In The Aurora Study: A Longitudinal Cohort Study, Kristen Nishimi, Stacey L House, Et Al.

2020-Current year OA Pubs

BACKGROUND: Systemic inflammation is hypothesized to contribute to post-traumatic stress disorder (PTSD) vulnerability. Few studies have examined inflammation shortly after trauma as a predictor of later PTSD symptoms. We examined whether inflammation from the emergency department (ED) post-trauma is associated with PTSD symptom severity over the following 6 months.

METHODS: Our sample included 742 AURORA participants, a longitudinal cohort of patients in 29 EDs across the United States after a traumatic stressor, followed up to 6 months. Plasma cytokines were assessed from a study blood draw in the ED: an inflammatory index (standardized sum of generally pro-inflammatory markers interleukin [IL]-6, …

Inflammatory Markers In The Emergency Department And Ptsd Symptoms In The Aurora Study: A Longitudinal Cohort Study, Kristen Nishimi, Sarah Linnstaedt, Thomas Neylan, Lauren Mckibben, Liz Marie Albertorio-Sáez, Ying Zhao, Stacey House, Francesca Beaudoin, Xinming An, Jennifer Stevens, Gari Clifford, Tanja Jovanovic, Laura Germine, Scott Rauch, John Haran, Alan Storrow, Paul Musey, Phyllis Hendry, Sophia Sheikh, Brittany Punches, Robert Swor, Jose Pascual, Mark Seamon, Elizabeth M Datner, Claire Pearson, David Peak, Roland Merchant, Robert Domeier, Niels Rathlev, Brian O'Neil, Paulina Sergot, Leon Sanchez, Steven Bruce, Steven Harte, Ronald Kessler, Karestan Koenen, Kerry Ressler, Samuel Mclean, Aoife O'Donovan

Department of Emergency Medicine Faculty Papers

BACKGROUND: Systemic inflammation is hypothesized to contribute to post-traumatic stress disorder (PTSD) vulnerability. Few studies have examined inflammation shortly after trauma as a predictor of later PTSD symptoms. We examined whether inflammation from the emergency department (ED) post-trauma is associated with PTSD symptom severity over the following 6 months.

METHODS: Our sample included 742 AURORA participants, a longitudinal cohort of patients in 29 EDs across the United States after a traumatic stressor, followed up to 6 months. Plasma cytokines were assessed from a study blood draw in the ED: an inflammatory index (standardized sum of generally pro-inflammatory markers interleukin [IL]-6, …

Comparative Effectiveness Of Low Versus High Dose Upadacitinib As Maintenance Treatment In Patients With Ulcerative Colitis: A Real-World Cohort Study From The United States, Priya Sehgal, Gursimran S. Kochhar, Harpreet Kaur, Himsikhar Khataniar, Raina Shivashankar, James D. Lewis, Aakash Desai

Division of Gastroenterology and Hepatology Faculty Papers

BACKGROUND: There is limited real-word data comparing efficacy of low dose upadacitinib (UPA) to high dose UPA as maintenance therapy for ulcerative colitis (UC).

METHODS: This was a retrospective cohort study utilizing the U.S. Collaborative Network in adults ≥18 years old with UC who initiated UPA 15 mg compared to 30 mg for maintenance therapy between April 2022 and December 2023. The primary outcome was a composite of intravenous steroid use, oral steroid use, or colectomy from 12 to 60 weeks from the index UPA prescription. Propensity score matching (PSM) was performed for demographics, co-morbid conditions, laboratory, and IBD medication …

Modalities Of Vision Restoration In Optic Neuropathies And Retinal Disease, Batsheva Rubin, Fabio Lavinsky, Rachel Cain, Ajay E. Kuriyan, Gadi Wollstein, Ronald Zambrano, Joel Schuman

Wills Eye Hospital Papers

Visual impairment affects over 250 million people globally and carries a significant psychosocial and economic burden. In recent years, rapid advancements in biomedical engineering and regenerative medicine have driven the development of innovative therapies aimed at restoring visual function. Here, we first provide an overview of the visual pathway, imaging modalities, and the psychosocial and economic burden of vision loss. Then we review four vision restoration approaches: gene and stem cell therapies, optogenetics, retinal prosthetic devices, and visual pathway electrical stimulation. For each therapeutic approach, the mechanism of action, clinical outcomes, adverse events, and current limitations are discussed. Stem cell …

Staff Education To Improve Clinical Task Prioritization Among Outpatient Clinical Staff, Adebayo Arowolo

Walden Dissertations and Doctoral Studies

No abstract provided.

Staff Education To Implement The Phq-9 Assessment Tool In Crisis/Trauma Services, Lewis Wilson

Walden Dissertations and Doctoral Studies

No abstract provided.

Development Of An Evidence Based Pressure Ulcer Prevention Bundle For The Medical Surgical Unit, Fanhelea Morency

Walden Dissertations and Doctoral Studies

No abstract provided.

Serological Evidence Of Onchocerca Volvulus Exposure And Entomological Indicators Of Parasite Transmission, Didier Kapuku Bakajika

Walden Dissertations and Doctoral Studies

No abstract provided.

Staff Education On The Use Of Music To Alleviate Anxiety In Patients With Dementia Within Long-Term Care Facilities, Anyinkeng Lydia Tazi

Walden Dissertations and Doctoral Studies

No abstract provided.

Staff Education On Lipoprotein (A) Screening And Clinical Follow-Up In Primary Care, Deshawntae Griffin

Walden Dissertations and Doctoral Studies

No abstract provided.

Improving Postoperative Handoff For Placenta Accreta: Implementing A Structured Handoff Communication Tool, Isabelle L. Gerrard

Doctor of Nursing Practice Final Project Abstract

Purpose Implement a standardized postoperative handoff tool to improve interdisciplinary communication during transfer of placenta accreta spectrum (PAS) patients from the operating room to an obstetric intensive care unit at an academic women's hospital.

Background Placenta accreta spectrum (PAS) is a high-risk obstetric condition requiring coordinated multidisciplinary care. At the project site, operating room (OR)-to-obstetric intensive care unit (OB ICU) handoffs lacked a standardized process. This resulted in inconsistent communication and omission of critical information. Nurses reported reduced confidence. Standardized handoff tools can improve communication and promote safer transitions of care.

Methodology This 10-week quality improvement project used Plan-Do-Study-Act methodology …

Practicing Professional Intake Consultations With Ai: An Experiential Assignment For An Exercise Prescription Course, Mark E. Hartman

Educational Practices in Kinesiology

The purpose of this article is to describe an assignment that integrates artificial intelligence (AI) with simulation-based learning in an upper-level undergraduate exercise prescription course. A large body of evidence supports the use of simulation-based education, though due to cost and feasibility limitations, it has largely been limited to medical education. This assignment leverages AI as a scalable, low-cost simulation tool, offering exercise science students a highly realistic practice simulation that reinforces both professional reasoning and interpersonal communication skills. In this assignment, titled Simulated Exercise Consultation Using ChatGPT, students practice conducting an intake session as a personal trainer while …

Prevalence Of Adverse Events Following T-Cell Redirecting Therapies In Patients With Metastatic Castration-Resistant Prostate Cancer: A Pooled Analysis, Abhiraj Saxena, Marc Yorker, Nicholas Zorko, Vivek Narayan, Bilal Siddiqui, Biren Saraiya, William Tester, Patrick Mille, Amy Shaver, Nikita Nikita, Grace Lu-Yao, W. Kevin Kelly, Kevin K. Zarrabi

Department of Medical Oncology Faculty Papers

BACKGROUND: T-cell redirecting therapies, including T-cell engagers (TCEs) and Chimeric Antigen Receptor T-cell (CAR-T), are under investigation in metastatic castration-resistant prostate cancer (mCRPC). Despite their promising therapeutic potential, these therapies remain in early stages of development due to treatment-related adverse events (TRAEs). This study aims to quantify the frequency and severity of adverse events in clinical trials with a pooled analysis.

MATERIALS AND METHODS: A systematic search of PubMed, CINHAL, Scopus, and Ovid was conducted to identify clinical trials evaluating TCEs or CAR-T in patients with mCRPC. Types and frequencies of TRAEs were collected and analyzed using a random-effects model. …

The Impact Of Patient Navigation On The Hepatitis C Care Continuum In Underserved Populations: A Scoping Review, Deauntaye Jones

Honors Theses

Hepatitis C virus (HCV) remains a significant public health concern and is a leading cause of cirrhosis, hepatocellular carcinoma, and liver transplantation when left untreated. Although direct-acting antiviral therapies have made HCV curable for most patients, many underserved populations continue to experience barriers to diagnosis, linkage-to-care, treatment completion, and sustained virologic response (SVR). This study evaluated how patient navigation programs influence progression through the HCV care continuum among underserved populations. Relevant studies published between 2014 and 2025 were identified through searches of PubMed and Embase using terms related to HCV, patient navigation, linkage-to-care, underserved populations, and treatment outcomes. Following title, …

Hyposense: Multimodal Physiologic And Voc Wearable For Early Hypoglycemia Detection, Nidhi R. Patel

Honors Theses

Hypoglycemia remains a significant safety concern for insulin-dependent individuals, especially when blood glucose declines rapidly during exercise, sleep, or periods of impaired hypoglycemia awareness. Current continuous glucose monitors and automated insulin delivery systems have helped to improve diabetes management, but these technologies primarily respond to glucose trends after they have already started and may not actually provide sufficient warning before symptoms occur. This thesis describes the development of HypoSense, a noninvasive wrist worn wearable concept that is designed to support earlier hypoglycemia risk detection through multimodal physiologic and volatile organic compound emission sensing. HypoSense combines volatile organic compounds/gas sensing with …

A Quality Improvement Initiative Evaluating Factors Influencing Patient Experience With Virtual Reality During Awake​ Interventional Radiology Procedures, Quynh Dao-Payne

Doctoral Projects

Procedural anxiety and pain are common among pediatric patients undergoing awake interventional radiology (IR) procedures and may negatively affect patient comfort, cooperation, and overall patient experience. Virtual reality (VR) has emerged as a promising nonpharmacologic intervention to reduce anxiety and improve patient-centered outcomes. The purpose of this quality improvement project was to evaluate patient-reported experiences and perceived outcomes associated with VR use during awake pediatric IR procedures at Children’s Hospital Los Angeles.​ A qualitative descriptive quality improvement design was utilized. Twenty pediatric​ patients ages 10–21 years undergoing awake IR procedures with VR as part of standard clinical​ care completed structured …

Expanding Expanded Access: A Case Of Onc201 And The Ethical Limitations Of Compassionate Use, Ava C. Hutchings

Honors Theses

This study examines the ethical and structural limitations of the Expanded Access program in the United States, with particular focus on its application to terminal pediatric illness. Although the program is intended to provide patients with life-threatening conditions access to investigational therapies outside of clinical trials, its effectiveness in serving critically ill children remains uncertain. This program is analyzed through careful consideration of regulatory review and ethical theory. Key policies governing Expanded Access are examined alongside scholarly discussions of pediatric autonomy and parental authority.

A case study of ONC201, a now-approved investigational drug, is used to illustrate how Expanded Access …

Values-Based Clinical Ethics: A New Model Of Health And Ethics Consultation For Patients Suffering In Extremis, Adam Trainer

Electronic Theses and Dissertations

This dissertation argues that contemporary clinical ethics is inadequately equipped to support patients suffering in extremis because it relies on an insufficiently discriminating account of health and a constrained model of moral reasoning. Drawing on Bernard Lonergan, it reconceives health as an emergent, multi-layered, heuristic notion shaped by biological, psychological, social, and existential goods. On that basis, it critiques principlism’s global applicability thesis and the undergirding claim that its principles form part of the common morality, arguing that this justificatory structure is philosophically insufficient and practically limited for clinical ethics in cases marked by profound suffering, moral plurality, and normative …

Dna Methylation Signatures Associated With Bipolar Disorder In Peripheral Blood Improve Prediction Models, Markos Tesfaye, Anne-Kristin Stavrum, Kira D Höffler, Kevin S O'Connell, Friederike S David, Melanie E Garrett, Sonia Hesam-Shariati, Bronwyn J Overs, Claudia Pisanu, Luana Spano, Oliver J Watkeys, Antoine Weihs, Rafaella Ardau, Allison E Ashley-Koch, Lavinia Athanasiu, Jean C Beckham, Kyle J Bourassa, Caterina Chillotti, Srdjan Djurovic, Ole K Drange, Josef Frank, Anouar Khayachi, Nathan A Kimbrel, Lourdes Martorell, Susanne Meinert, Ingrid Melle, Gunnar Morken, Pasquale Paribello, Marco Pinna, Gloria Roberts, Guy Rouleau, Peter R Schofield, Esteban Sepúlveda, Giovanni Severino, Vidar M Steen, Frederike Stein, Fabian Streit, Va Mid-Atlantic Mirecc Workgroup, Trine Vik Lagerberg, Martin Alda, Udo Dannlowski, Andreas J Forstner, Janice M Fullerton, Hans J Grabe, Melissa J Green, Tilo Kircher, Javier Labad, Mirko Manchia, Philip B Mitchell, Jair C Soares, Alessio Squassina, Alexander Teumer, Leonardo Tondo, Elisabet Vilella, Ole A Andreassen, Boris Chaumette, Gabriel R Fries, Stephanie Le Hellard

Faculty, Staff and Student Publications

Background: Bipolar disorder (BD) is a major mood disorder influenced by both genetic and environmental factors. While DNA methylation from peripheral tissues can reflect both genetic and environmental influences and reveal insights into disease biology, it remains understudied in BD. DNA methylation signatures may complement polygenic scores (PGS) and hold potential as biomarkers. Here, we conducted the largest epigenome-wide association study (EWAS) of BD to date and evaluated the predictive value of polymethylation scores (PMS) in classifying case-control status.

Methods: DNA methylation from peripheral blood of 1729 cases and 1747 controls, comprising twelve cohorts, was obtained. We performed meta-analyses for …