Medicine and Health Sciences Commons^™

From Imbalance To Phenotype: Neurodevelopmental Alterations In Trisomy 21, Andrew Yuan

CMC Senior Theses

Down syndrome (DS), caused by Trisomy 21, is the most common genetic cause of intellectual disability. Individuals with DS consistently show reduced brain volume, decreased cortical thickness, and lasting impairments in learning, memory, and executive functioning. These neuroanatomical changes emerge during fetal development and are accompanied by chronic immune dysregulation due to the triplication of four interferon receptor genes on chromosome 21. Although decreased neuron progenitor proliferation has been known to contribute to these phenotypes, the precise timing and cellular mechanisms underlying disruptions in neurogenesis remain not fully understood. This study used immunohistochemistry to examine human fetal cortical tissue from …

Associations Between Neighborhood Physical And Social Stressors During Sensitive Developmental Periods And Substance Use In Early Adulthood, Abigail M. Ulofoshio

Electronic Theses & Dissertations (2024 - present)

Background

Substance use is a major public health problem. Neighborhood disadvantage and related stressors have been linked to increased substance use in adolescence and early adulthood, although findings are mixed. No studies have explored whether the timing or accumulation of neighborhood stressors in childhood and adolescence impact substance use in early adulthood. This study aims to investigate to what extent physical and social neighborhood stress during sensitive developmental periods influence substance use dependency and illicit substance use in early adulthood.

Methods

We analyzed an imputed sample (n = 7,494) from the Avon Longitudinal Study of Parents and Children (ALSPAC), a …

Studies Towards Chemical Synthesis Of Homogeneous Prion Glycoprotein, Baotong Tian

Electronic Theses & Dissertations (2024 - present)

Prion diseases are fatal neurodegenerative disorders initiated by conformational misfolding of the prion protein (PrP), which generates pathogenic conformers that propagate via templated conversion and accumulate as aggregates. Glycosylation can modulate the PrP folding energy landscape, thereby biasing folding trajectories and the distribution of resulting conformational states. Bank vole PrP contains two N-linked glycosylation sites, and disentangling the contributions of site occupancy versus glycan structure requires homogeneous, site-defined glycoforms. In contrast, biosynthetic expression typically produces heterogeneous glycoform ensembles due to multistep Golgi processing, precluding independent control of glycan identity at each site. Here we report a chemical synthesis strategy of …

Geovig And Purevig: Geometry-Aware Architectures For Efficient Computer Vision, Omar Ismail

Theses and Dissertations (Comprehensive)

Deploying deep learning models for medical image analysis on mobile devices requires a balance between inference latency, memory footprint, and delineating anatomical boundaries with high accuracy. While Convolutional Neural Networks (CNNs) and mobile Vision Transformers (ViTs) offer efficiency, they often struggle to model the irregular, non-local geometric structures inherent in biological tissues without incurring prohibitive computational costs. In this thesis, we introduce GeoViG (Geometric Vision Graph), an architecture that bridges the gap between efficient grid-based processing and explicit Geometric Deep Learning. GeoViG introduces a novel transition from high-resolution pixel grids to low-resolution dynamic graphs via a SpreadEdgePool operator, a geometry-aware …

“Shaking The Ladder” Reveals How Analytic Choices Can Influence Associations In Nutrition Epidemiology: Beef Intake And Coronary Heart Disease As A Case Study, Colby J Vorland, Lauren E O'Connor, Beate Henschel, Cuiqiong Huo, James M Shikany, Carlos A Serrano, Robert Henschel, Stephanie L Dickinson, Keisuke Ejima, Aurelian Bidulescu, David B Allison, Andrew W Brown

Children’s Nutrition Research Center Staff Publications

Nutrition epidemiological models involve many analytic decisions, such as defining exposures, selecting which covariates to include, or configuring variables in different ways. We explored the impact of analytical decisions on conclusions in nutrition epidemiology using self-reported beef intake and incident coronary heart disease as a case study. We used REasons for Geographic and Racial Differences in Stroke (REGARDS) data, and selected covariates and their configurations from published literature to recapitulate common models used to assess associations between meat intake and health outcomes. Three model sets were designed: sets one and two used continuous and quintile-defined beef intakes, respectively, each with …

Polyfluoroalkyl Substances And Altered Glucose Homeostasis In Adolescents Following Bariatric Surgery, Elizabeth Costello, Brittney O Baumert, Zhenjiang Li, Vishal Midya, Shudi Pan, Justin R Ryder, Thomas H Inge, Todd M Jenkins, Stephanie Sisley, Stavra A Xanthakos, Anita Courcoulas, Douglas I Walker, Nikos Stratakis, Damaskini Valvi, Scott M Bartell, Angela L Slitt, Rohit Kohli, Sarah Rock, Michele A La Merrill, Sandrah P Eckel, Max T Aung, Rob Mcconnell, David V Conti, Lida Chatzi

Children’s Nutrition Research Center Staff Publications

Objectives: Bariatric surgery is an effective treatment for severe obesity and associated metabolic comorbidities. Exposure to polyfluoroalkyl substance (PFAS) before bariatric surgery may attenuate improvements in glucose metabolism and explain some of the heterogeneity in post-surgery outcomes.

Design: This is an observational cohort study.

Methods: Adolescents (n = 186) enrolled in the Teen-Longitudinal Assessment of Bariatric Surgery study were included. Eight-PFAS congeners were measured in plasma before surgery. Linear and logistic regressions were used to examine cross-sectional associations between log2-transformed PFAS (ng/mL) and fasting glucose, insulin, hemoglobin A1c (HbA1c), and homeostatic model assessment for insulin resistance (HOMA-IR). Linear mixed …

Examining Widely Held Propositions On Human Dietary Protein Needs And Benefits: A Critical Review Of The Science That Shapes Both The Data And Our Understanding Of An Essential Macronutrient, Mitchell M Kanter, Sally Aaron, Steven N Austad, Andrew W Brown, Nicholas A Burd, Wayne W Campbell, Mark Cope, Teresa A Davis, John W Erdman, Miguel Freitas, Kristen Hicks-Roof, Samuel Klein, Wantanee Kriengsinyos, Dudley W Lamming, Donald K Layman, Heather J Leidy, Kevin C Maki, Richard D Mattes, Shalene Mcneill, Daniel R Moore, Stefan M Pasiakos, Stuart M Phillips, David Raubenheimer, Wendy Reinhardt, Nancy R Rodriguez, Stephen Simpson, Hans H Stein, Luc J C Van Loon, Connie M Weaver, David B Allison

Children’s Nutrition Research Center Staff Publications

The essentiality of protein in the human diet is unequivocal. Yet researchers, clinicians, and lay people often believe numerous propositions about dietary protein despite insufficient supporting or refuting data in some instances. To address this disconnect, and to "pressure-test" current beliefs about dietary protein, the Indiana University School of Public Health-Bloomington convened a workshop in February 2025 titled "Human Dietary Protein Needs and Benefits: A Critical Assessment of Postulated Propositions." More than 20 international experts discussed (1) methodologic issues affecting data acquisition and interpretation; (2) "optimal" dietary protein intakes and effects on muscle protein synthesis rates, muscle protein accretion, …

Limosilactobacillus Reuteri Alleviates Proinflammatory T-Cell-Mediated Liver Injury And Transcriptomic Changes In Immunocompromised Mice, Ana Fadhel Alvarez, Zheng Yin, Beanna Okeugo, Alexander Banerjee, Meng Luo, Christopher M Taylor, Salomea Giorgberidze, Vaishali Harne, Rambabu Majji, Melissa N Munroe, Ji Ho Suh, Stephen T C Wong, Kang Ho Kim, Hari Krishna Yalamanchili, Suhair Al Salihi, Jon Marc Rhoads, Yuying Liu

Children’s Nutrition Research Center Staff Publications

Background: A deficiency of immunosuppressive regulatory T cells, as seen in scurfy (SF) mice or in IPEX syndrome in humans, can lead to multiorgan inflammation. Oral administration of the probiotic Limosilactobacillus reuteri Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH (DSM) 17938 prolongs survival and reduces Th1- and Th2-associated inflammation in SF mice. It remains unclear how DSM 17938-educated SF-CD4+ T cells modulate T-cell-liver communication.

Methods: To characterize CD4+ T cells from SF mice orally administered DSM 17938 (Prob-SF-CD4+ T cells) and to compare them with CD4+ T cells from SF mice (SF-CD4+ T cells), cells isolated from SF spleens were …

Insulinemic And Inflammatory Dietary Patterns And Colorectal Cancer Risk: A Dietary Data Harmonization Study Of One Million Participants In The Consortium Of Metabolomics Studies (Comets), Ni Shi, Rachel Hoobler, Rhea Harewood, Amanda E Toland, Demetrius Albanes, Emmanouil Bouras, Marc J Gunter, Linda M Liao, Steven C Moore, Fulvio Ricceri, Jerome I Rotter, Rashmi Sinha, Rachael Stolzenberg-Solomon, Anne Tjønneland, Alexis C Wood, Danxia Yu, Mary C Playdon, Fred K Tabung

Children’s Nutrition Research Center Staff Publications

Background: Inflammatory and insulinemic dietary patterns have been associated with colorectal cancer (CRC) risk, but generalizability across diverse populations with heterogeneous food supplies and dietary behaviors has not been established.

Objectives: We harmonized disparate dietary and covariate data on a large scale to compute the reverse Empirical Dietary Index for Hyperinsulinemia (rEDIH), reverse Empirical Dietary Inflammatory Pattern (rEDIP), and Healthy Eating Index (HEI)-2015 scores, and tested their associations with CRC risk.

Methods: We leveraged data among 501,892 women and 407,390 men from 6 cohorts across the United States (NIH-AARP, Multi-Ethnic Study of Atherosclerosis, Prostate, Lung, Colorectal, and Ovarian, SCCS) and …

Cross-Sectional And Longitudinal Relationships Between Abdominal Fat Depots And Cardiometabolic Risk In A Sample Of Mexican Adolescents, Luis Ortíz-Hernández, Erica G Soltero, Miguel Camejo, Jesús Valdes

Children’s Nutrition Research Center Staff Publications

Background: The relationship between abdominal fat depots and cardiometabolic risk among youth is inconclusive due to the cross-sectional nature of existing studies and limitations in assessment methods. In this study, we examined cross-sectional and longitudinal associations of subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT) with cardiometabolic risk indicators among Mexican adolescents.

Methods: Participants (n = 169 at baseline and 134 at follow-up) were assessed for diastolic or systolic blood pressure (DBP or SBP), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), triglycerides, glucose, and insulin. VAT and SAT were measured using magnetic resonance imaging. Measures …

A Pragmatic Guide To Data Integration For Pediatric Researchers: The Nuts And Bolts Of Mixed Methods Analysis, Kathleen A Knafl, Janet A Deatrick, Veronica M Swallow, Yelena P Wu, Debbe Thompson

Children’s Nutrition Research Center Staff Publications

Objective: To provide pragmatic guidance on data analysis, integration, and reporting guidance for investigators new to mixed methods research.

Methods: Three core mixed methods designs (convergent, explanatory sequential, and exploratory sequential) are described. Key decision points related to data integration-specifying intent, data selection, data preparation, integration strategies, use of analysis software, reporting-are explained, including comparison of decision points across the different mixed methods designs.

Results: Recommendations for addressing key decisions during analysis are provided and supported with published examples from mixed methods studies focused on pediatric populations.

Conclusions: Integration of qualitative and quantitative data is the defining characteristic of mixed …

Sustainable Community-Wide Model To Enhance Cancer Data Usage And Utility, Emily S Boja, Mousumi Ghosh, Ying Huang, Tung-Shing Mamie Lih, Rawan Shraim, Gregory Wheeler, Diana Thomas, Rakesh Khanna, Stephanie Sandor, Jinghui Zhang, Sapna Oberoi, Nicolas J Llosa, Aditya Suru, Fernanda Silva Michels, Eric Durbin, Anna Fernandez, Lucy Han, James Galbraith, Yin Lu, Brian Furner, James H Tanis, Michael Watkins, David Higgins, Gavriel Matt, Xin Zhou, Yang Li, Marcin Cieslik, Jamie Estill, Michael Sierk, Yanling Sun, Weiping Ma, Joseph Flores-Toro, Freddie Pruitt, Subhashini Jagu, Elmer A Fernández, Daniela Orschanski, Stephanie J Spielman, Jaclyn Taroni, Trinh Nguyen, Brian Capaldo, Erin Beck, Tanja Davidsen, Johanna Goderre Jones, Minghong Ward, Anne Sturcke, Jennifer M Torres Del Valle, Sean Hanlon, Danielle Daee, Brandon Wright, Nathaniel Boyd, Heather Basehore, Liang Liu, Ying Hu, Daoud Meerzaman, Huiqing Li, Ying Wu, Gregory H Reaman, Erin Rudzinski, Jack F Shern, Brigitte Widemann, Warren Kibbe, Jaime Guidry Auvil

Children’s Nutrition Research Center Staff Publications

Despite vast investments in data collection, generation, and sharing from childhood cancer studies, for example, Gabriella Miller Kids First Research Program, Childhood Cancer Data Initiative, and other efforts, secondary use of data remains a challenge especially for rare diseases. The National Cancer Institute (NCI) Office of Data Sharing (ODS) aimed to promote FAIR (Findable, Accessible, Interoperable, Reusable) data sharing practices to enhance data utility, accelerate discovery, and foster interdisciplinary collaboration. NCI ODS launched its inaugural Data Jamboree focusing on childhood cancer alongside its third Annual Symposium in September 2025. Over 120 participants with diverse backgrounds coalesced into 23 multidisciplinary teams …

Senolytic-Resistant Senescent Cells Have A Distinct Sasp Profile And Functional Impact: The Path To Developing Senosensitizers, Utkarsh Tripathi, Masayoshi Suda, Vagisha Kulshreshtha, Bryan T Piatkowski, Allyson K Palmer, Nino Giorgadze, Christina Inman, Nathan Gasek, Ming Xu, Kurt O Johnson, Tamar Pirtskhalava, Selim Chaib, Larissa P G Langhi Prata, Yi Zhu, Renuka Kandhaya-Pillai, Stefan G Tullius, Saranya P Wyles, Rambabu Majji, Hari Krishna Yalamanchili, David B Allison, Tamar Tchkonia, James L Kirkland

Faculty, Staff and Students Publications

The senescent cell (SC) fate is linked to aging, multiple disorders and diseases, and physical dysfunction. Senolytics, agents that selectively eliminate 30%-70% of SCs, act by transiently disabling the senescent cell antiapoptotic pathways (SCAPs), which defend those SCs that are proapoptotic and pro-inflammatory from their own senescence-associated secretory phenotype (SASP). Consistent with this, a JAK/STAT inhibitor, Ruxolitinib, which attenuates the pro-inflammatory SASP of senescent human preadipocytes, caused them to become "senolytic-resistant". Administering senolytics to obese mice selectively decreased the abundance of the subset of SCs that is pro-inflammatory. In cell cultures, the 30%-70% of human senescent preadipocytes or human umbilical …

Correction: Establishing Standardized Transthoracic Echocardiography Reference Ranges For Mouse Models: Insights Into The Impact Of Anesthesia, Sex, And Age, Manuela A Oestereicher, Christopher S Ward, Elida Schneltzer, Susan Marschall, Helmut Fuchs, Valerie Gailus-Durner, Ghina Bou About, Mohammed Selloum, Hamid Meziane, Michelle Stewart, Lydia Teboul, Clare Norris, Dale Pimm, Marina Kan, Federico López Gómez, Robert Wilson, Mayra Monroy, Sheraz Pasha, Eva Zabrodska, Jan Prochazka, David Pajuelo Reguera, Zuzana Nichtova, Yann Herault, Sara Wells, Helen Parkinson, Jason D Heaney, Radislav Sedlacek, Xiang Gao, Martin Hrabe De Angelis, Nadine Spielmann

Faculty, Staff and Students Publications

This corrects the article "Establishing standardized transthoracic echocardiography reference ranges for mouse models: insights into the impact of anesthesia, sex, and age" in volume 12, 1695034.

Happy New Year To You And Your Team!, Kyle Katynski Dds

Journal of the Macomb Dental Society

This article features a monthly column from the Macomb Dental Society President, Dr. Kyle Katynski. This month Dr. Katynski discusses reoccurring themes from 2025, such as simplifying, and lessons from the past year.

Titanium Hypersensitivity As Possible Cause Of Dental Implant Failures, William J. Maloney D.D.S., Pg Certmeded, Facd, George Raymond D.D.S., Facd, Maura Maloney D.D.S.

The New York State Dental Journal

For many decades, titanium implants have achieved a remarkably high success rate. However, there are cases in which osseointegration does not occur as predicted or desired. In these cases, an analysis of the factors that led to the implant failure must be conducted. There are multiple, widely accepted potential causes of such implant failures. Today, one must also consider titanium hypersensitivity as a potential reason for failure. Symptoms of a titanium allergic reaction may include mucosal erythema, swelling of lips, purpuric patches on hard and soft palate, ulcers in the oral cavity, hyperplastic gingivitis, cheilitis, eczematous eruptions on face and …

The Budget Was Late, But The Victories Were Significant, Lance Plunkett Jd, Llm

The New York State Dental Journal

NYSDA efforts on behalf of dental practices, its dental foundation and Medicaid providers were rewarded.

Generational Differences In Dentistry And Dental Practice, Ellen Lee Dds, Brian Chin M.B.A., Hazel Hong, Daranthea Atmadja, Jong Soo Lim, Jamie Chen, Chloe Lin, Chloe Naeun Kim

The New York State Dental Journal

Society is composed of workers from different generations. These include the Silent Generation, or Traditionalists, Baby Boomer Generation, Generation X, Millennials and Generation Z. Generation Alpha will join the workforce in the next decade. The way each generation has approached dentistry depends on available materials and technology, as well as contemporary societal values. In addition, major historical events and the state of the economy may have been and are contributing factors in how each generation practiced or practices dentistry.

Hiv Screenings In Dental Settings Feasibility, Challenges And Opportunities, Leander Nguyen, Melissa Yap, Ezzard Rolle Dds, Alison Newgard Dds

The New York State Dental Journal

Integrating human immunodeficiency virus (HIV) screening into dental settings presents a valuable opportunity to enhance early detection and reduce transmission rates. Dentists regularly interact with at-risk populations and can use rapid oral fluid tests, which are noninvasive and reliable. Studies show that both dental professionals and patients are generally receptive to this practice, though barriers remain, including cost, provider training and concerns about scope of practice. Implementing structured education, clear protocols and interprofessional collaboration can support widespread adoption. Overall, dental HIV screening holds promise as a feasible and impactful public health intervention.

J Mich Dent Assoc January 2026

The Journal of the Michigan Dental Association

Each month, the Journal of the Michigan Dental Association delivers news, information, and features about Michigan dentistry to our state's oral health community and the MDA's 6,200+ members. It remains the main publication reaching Michigan dentists and is available worldwide through ADA Commons. The January 2026 (Volume 108, No. 1) issue of the Journal is published in a print format to provide updates and insights for Michigan's oral health community and MDA members. Print editions occur every other month beginning with January.

This issue includes feature articles on Pediatric Dentistry and 2025 Life Membership recipients.

Regular monthly contributions include:

• Editorial …

Turning Your Membership Into Measurable Value, Reva Darling

The Journal of the Michigan Dental Association

MDA membership offers significant financial leverage by negotiating programs that return money to dental practices. In 2025, practices utilizing endorsed vendors realized potential annual savings exceeding $50,000. Highlighted services include MEDVA, which provides virtual assistants to reduce salary expenses by over 60%, and PPO Negotiation Solutions, which has increased some practices' collections significantly. Members also benefit from discounts on dental supplies (TDSC.com), accounting services, and precious metal refining. Furthermore, Bridge Commercial Realty assists with real estate transitions, offering fee discounts and free appraisals. Collectively, these endorsed programs are designed to offset membership dues and strengthen a practice's financial health.

Lessons Learned From My First Patient Transition, Amrita Patel Dds

The Journal of the Michigan Dental Association

A new associate reflects on the challenges and lessons of transitioning into her father's established practice. The author emphasizes the importance of listening to long-term patients to understand their history and build trust. While new practitioners often feel the need to prove technical skills, patients primarily seek reassurance and continuity of care. Successful transitions require a balance between respecting existing systems and gradually introducing a new perspective. Introductions by the senior doctor can significantly ease patient apprehension. Ultimately, the experience underscores that dentistry is deeply rooted in relationships and communication, requiring patience and humility to maintain the stability of the …

When Should I Pay For Continuing Education?, Jodi Schafer Sphr, Shrm-Scp

The Journal of the Michigan Dental Association

This article outlines legal requirements for compensating staff for Continuing Education (CE) under the Fair Labor Standards Act. Training time is considered "hours worked" unless it is voluntary, outside regular hours, non-job-related, and involves no productive work. If these criteria are not met, employers must pay for training and associated travel time, including it in overtime calculations. While mileage reimbursement is not federally mandated, many practices offer it as a benefit. Creative cost-saving measures include stipends or in-office lunch-and-learns. Establishing a clear, written policy in the employee handbook is essential for consistent application and can serve as a valuable tool …

Spontaneous Vertebral Osteomyelitis Mimicking Spinal Tumor: A Rare Cause Of Complete Paraplegia And Rehabilitation Challenges, Yu-Ting Su, Hung-Hsi Lin, Ying-Chun Chen

Rehabilitation Practice and Science

Spontaneous vertebral osteomyelitis (SVO) is a rare but severe spinal infection that often presents with non-specific back pain, leading to misdiagnosis as a neoplastic disease. A 53-year-old female presented with progressive lower back pain, rapidly developing sudden complete paraplegia and neurogenic bowel/bladder. Initial MRI revealed T4–T6 vertebral lesions mimicking a spinal tumor. Emergent surgery and cultures confirmed Escherichia coli vertebral osteomyelitis.

Following decompression and targeted antibiotic therapy, a cautious, phase-specific rehabilitation program was initiated. Given the persistent infection and spinal instability, all weight-bearing activities were deferred until infection control and structural stability were confirmed following a spinal fixation surgery. The …

Gender Differences In The Association Between Adverse Childhood Experiences And Drug Use: Findings From A Community-Based Survey In China, Hongyun Fu, Elizabeth Monk-Turner, Xiushi Yang

Department of Pediatrics Faculty Publications

Background

While adverse childhood experiences (ACEs) are widely recognized risk factors for behavioral health problems, including drug use, prior research has largely been conducted in Western countries, focused primarily on males, and relied on convenience samples without comparison groups of nonusers. Limited work has examined the impact of ACEs on drug use in non-Western contexts. This study examines gender differences in the relationship between ACEs and drug use in China, using data from a population-based probability sample survey.

Methods:

Cross-sectional data were collected in 2019 from one city in Yunnan Province in Southwest China and one city in Guangdong Province …

Music Interventions For Critically Ill Patients: Evaluating Effects Of Music On Psychoemotional Symptoms In Critically Ill Patients Receiving Respiratory Support, Allyson Crighton

Honors Undergraduate Theses

Critically ill adults receiving respiratory support in intensive care units (ICUs) frequently experience psychoemotional disturbances such as agitation, anxiety, and delirium, which contribute to prolonged ventilation, increased sedative use, and adverse patient outcomes. While pharmacologic management remains standard practice, associated risks including oversedation and delirium highlight the need for safe, complementary interventions. Emerging evidence suggests that music-based interventions may offer a non-invasive, cost-effective strategy to reduce psychological or emotional distress in this vulnerable population. This integrative literature review examined the effects of music interventions, including passive music listening and structured music therapy, on agitation and related psychoemotional outcomes in critically …

Parenting Stress And Its Association With Parental Technoference: An Integrative Literature Review, Emily S. Machuca

Honors Undergraduate Theses

Introduction: Today, digital devices are a part of daily life, but can serve as a distraction that interrupts important relationships, a process referred to as technoference. In the context of parenting, device use during child interactions may reduce parental attentiveness and engagement, with potential implications for child development and behavior. Parenting stress may influence how and why parents engage with digital devices in the presence of their children. However, the association between parenting stress and parental technoference remains unclear in the current literature. This integrative literature review aimed to synthesize existing evidence examining the relationship between parenting stress and parental …

A Unified Automated And Explainable Ai Framework For Drug Discovery, Clinical Diagnostics, And Public Health Data Prediction, Lord Coffie

College of Graduate Studies: Theses & Dissertations

This thesis investigates the development of automated, explainable artificial intelligence systems to improve automated scientific discovery, clinical diagnostic support, and public health decision-making. Three independent yet thematically aligned studies were conducted across cheminformatics, radiology, and population health. Study A introduces an automated and explainable machine learning pipeline for Quantitative Structure–Activity Relationship (QSAR) modeling using RDKit-derived molecular descriptors. The pipeline performs systematic preprocessing, consensus-based feature selection (mutual information, random forest importance, RFECV), and benchmarks six supervised models—Random Forest, XGBoost, Support Vector Machine, Balanced Random Forest, EasyEnsembleClassifier, and a blended meta-ensemble, achieving AUC = 0.90 and accuracy = 0.83, while ensuring interpretability …

Assessing And Advancing Pandemic Emergency Preparedness In New York City's Hospitals: A Strategic Management Toolkit Integrating Policy Analysis, Risk Assessment, And Stakeholder Insight, Irrem Jamal

College of Graduate Studies: Theses & Dissertations

This dissertation examines pandemic emergency preparedness in New York City hospitals, which were severely strained during COVID-19, revealing critical gaps between documented plans and operational readiness. Using a multimethod approach combining a survey of 20 stakeholders across city hospitals, semi-structured interviews, and document analysis of policy frameworks and after-action reports, the study identifies a persistent "documentation-execution paradox": while 80% of respondents confirmed clear pandemic plans, only 45% expressed confidence in staffing adequacy, 55% in surge planning realism, and just 45% confirmed regular drills. Qualitative analysis revealed workforce as the single greatest yet most underinvested vulnerability, supply chain fragility rooted in …

Exploring Psychological Safety And Workforce Experiences Among Employees In Recovery Community Organizations In The Southern United States: A Qualitative Study, Claire-Lorentz Ugo-Ike

College of Graduate Studies: Theses & Dissertations

This qualitative study explored how employees in Recovery Community Organizations (RCOs) in the Southern United States experience psychological safety and how these experiences shape employee well-being and their intentions to stay or leave their organizations. Guided by Edmondson’s Psychological Safety Theory and the Job Demands-Resources (JD-R) model, the study examined how leadership practices, workplace culture, and the emotional demands of recovery support work shape employees’ perception of safety, support, and sustainability in the workforce. Semi-structured interviews were conducted with 19 RCO employees working in various peer support roles. Thematic analysis identified five major themes: (1) leadership behaviors shape psychological safety …