Digital Commons Network^™

Key Processes Involved In The Vortex Alignment Of Sheared Tropical Cyclones, Luis O. Hernandez

Electronic Theses & Dissertations (2024 - present)

Tropical cyclones (TCs) are challenging to forecast when under vertical wind shear (VWS). VWS tilts a TC’s vortex, creating asymmetries in its structure that impedes intensification. Although work has been done to conceptualize and understand how TCs evolve under shear and how they axisymmetrize and intensify, vortex alignment remains a complex and unresolved topic. The goal of this study is to assess what physical processes are important to tilt reduction and how these processes evolve in weak TCs. Using the Hurricane Analysis Forecast System Model-B (HAFS-B) 2.1, a case study on two storms, Hurricane Earl (2022) and Hurricane Lee (2023) …

When Helpfulness Becomes Harmful: Jailbreaking Llms For Malicious Code Generation, Noelle Capodieci

Electronic Theses & Dissertations (2024 - present)

Generative AI (GenAI) and Large Language Models (LLMs) have made large strides in coding task capabilities, with many software developers integrating agentic engineering into their workflow. While GenAI has largely benefited professional software engineers who can automate their work, it has also created room for those with little coding expertise to also create fully fledged programs and applications. It is commonly noted that GenAI is trained with two major goals in mind: to be as helpful as possible, and be as harmless as possible. There exist moments where helpfulness may be prioritized over harmlessness when these goals conflict. LLMs may …

Psychometric Assessment Of The Facilitative Systemic Intervention Skills Rating System– Spanish Version, Sarah J. Crosky

Electronic Theses & Dissertations (2024 - present)

Despite the growing understanding of therapist factors in client outcomes, there remains limited understanding of the skills that distinguish effective family therapists. The aim of the present study was to assess the interrater reliabilities and factorial structure of a Spanish version of the Facilitative Systemic Intervention Skills (FSIS; Jones et al., 2023a), an observational rating system for evaluating the skillfulness of family therapists in delivering systemic interventions. The FSIS includes eight empirically and theoretically informed systemic therapy skills (Inclusiveness, Empathy for Relational Difficulties, Responsiveness to Safety Concerns, Collaborative Stance, Conceptualizing Family Problems Systemically, Responsiveness to Disparate Goals, Focus on Family …

Intergroup Relationship Attitudes Among Multicultural Adolescents In South Korea: Friendship, Dating, And Marriage, Jeewoo Shin

Electronic Theses & Dissertations (2024 - present)

This dissertation asks how multicultural adolescents in South Korea develop their attitudes toward crossing group boundaries in social and intimate life—whom they would accept as a close friend, a romantic partner, and a spouse—and what factors shape these attitudes. Korea’s immigrant population has grown more than seventyfold since 1990, largely through marriage migration, and the children of those unions are now reaching adulthood. Research on these adolescents has focused on how well they adjust, leaving open how they themselves come to view relationships across group lines.

Using eight annual waves of the Multicultural Adolescent Panel Study (N = 1,112), which …

Cognate Awareness Training For Novice L2 Learners: Orthographic And Phonological Routes To Vocabulary Learning, Jennifer M. Martin

Electronic Theses & Dissertations (2024 - present)

Within the study of cross-linguistic influence, research on cognate facilitation has consistently shown that proficient bilinguals process cognates (e.g., English “sock” and German “Socke”) more efficiently than non-cognates. However, less is known about how novice adult learners may benefit from these similarities during the earliest stages of second language acquisition or how instructional interventions might facilitate this process. This dissertation addressed this gap through experiments with English-speaking adults learning German. A series of experiments examined the effects of cross-linguistic similarity and explicit cognate awareness training on vocabulary acquisition. Experiment 1A found robust similarity effects in written recall and …

Hydroclimate Variability And Itcz Migration Over The Last Millennium Inferred From A New Speleothem Record In Central Colombia Using Paleo Data Assimilation, Derick Appiah Kubi

Electronic Theses & Dissertations (2024 - present)

Hydroclimate variability over tropical South America is strongly influenced by meridional shifts in the Intertropical Convergence Zone (ITCZ), yet the spatial expression and dynamical controls of these changes during the last millennium remain poorly understood. This work investigates hydroclimate variability and ITCZ migration over the last millennium (850-1850 CE) using a new isotope-enabled data assimilation (DA) reconstruction made from a suite of speleothem δ¹⁸O records from the neotropics on both sides of the ITCZ. The reconstruction targets the March-August (MAMJJA) season in order to capture the rainfall regimes most relevant to central Colombia and northeastern Brazil. The focus on these …

A Comprehensive Investigation Of Service Utilization In Innovative Models Of Hepatitis C Care And Treatment For Persons Who Inject Drugs In New York State, Amanda C. Sue

Electronic Theses & Dissertations (2024 - present)

Hepatitis C virus (HCV) is the most prevalent blood-borne infection in the United States and is primarily transmitted through the sharing of unsterilized drug injection equipment. With surges in opioid overdose deaths, there has been an increase in people diagnosed with HCV that can be attributed to persons who inject drugs (PWID) in the United States. PWID have therefore been identified as a priority population to achieve the goal of eliminating HCV as a public health threat. Despite the availability of safe and effective direct-acting antiviral (DAA) therapies that can cure people with HCV, uptake of HCV treatment in PWID …

Weather-Related Road Condition Detection Using Co-Developed Machine Learning Methods, Carly Sutter

Electronic Theses & Dissertations (2024 - present)

Transportation agencies make critical operational decisions during hazardous weather events, including assessment of road conditions and resource allocation. In this study, machine learning models are developed to provide additional support for the New York State Department of Transportation (NYSDOT) by automatically classifying road conditions across the state. Convolutional neural networks and random forests are trained on NYSDOT roadside camera images and weather data to predict road surface conditions. This task draws critically on a labeled dataset of 22,000 camera images containing six road surface conditions (severe snow, snow, wet, dry, poor visibility, and obstructed) generated from an iterative hand-labeling process …

Victimized And Criminalized: The Intertwined Narratives Of Trauma And Offending, Caitlin Maria Udas

Electronic Theses & Dissertations (2024 - present)

How do pathways between childhood victimization, drug use, and offending behavior vary for recordholders of different races and genders? Prior literature and theory indicates that there are distinct processes that can link childhood victimization to drug use and other offending behavior. These processes are rooted at least partially in experiences of racism/discrimination, placement relative to sociocultural power structures, and norms established over one’s childhood through peer and familial influences. However, less is known about how these differ by race, gender, and the intersection thereof. This dissertation examines the intersectional differences in narrative pathways that link childhood victimization, drug use, and …

Analysis Of Vertical Tropospheric Atmospheric Profiles Associated With Extreme Rainfall Events Over KauaʻI, HawaiʻI, Amanda Maria Maminimini

Electronic Theses & Dissertations (2024 - present)

Extreme rainfall is a persistent hazard in the Hawaiian Islands, where steep terrain and short catchments convert heavy rain into damaging floods with little warning. The trade wind inversion, a subsidence-driven stable layer that caps the marine boundary layer over the subtropical North Pacific, limits the depth of convection and is therefore expected to govern whether available moisture can be converted into extreme rainfall. Previous work has characterized the inversion climatologically and has related the El Niño-Southern Oscillation (ENSO) and the Pacific-North American (PNA) pattern to Hawaiian rainfall totals, but the behavior of the inversion on the specific days when …

High-Tcr Multivalence Vanadium Oxide Thin-Films From Deposition Parameter Control To Microbolometer Applications, Latika Susheel M. Chaudhary

Electronic Theses & Dissertations (2024 - present)

This thesis details the development of multivalence-nanostructured vanadium oxide (VOₓ) thin films for uncooled microbolometer applications, with a systematic optimization of magnetron-sputtering parameters. The temperature coefficient of resistance (TCR), resistivity, and optical response of VOₓ thin-film sensing layers are controlled by valence composition, grain growth, and surface morphology. The primary goal was to achieve a high TCR with low resistivity to improve thermal detector performance.

Multivalent VOₓ thin films were deposited on silicon, SiO₂, and glass substrates using DC magnetron sputtering. Three key parameters were systematically varied: Ar:O₂ ratio (18:2 to 15:5), deposition time (60–120 minutes), and DC power (300W …

The Impact Of Downdraft Ventilation On Tropical Cyclone Intensity And Structure Using Aerial Reconnaissance Observations, Nicholas E. Johnson

Electronic Theses & Dissertations (2024 - present)

Tropical cyclone (TC) intensity can be challenging to predict since it is modulated by many physical processes. One of these processes is ventilation: the injection of relatively cool, dry environmental air into the warm core of a TC that acts as “anti-fuel”, inhibiting intensification and increasing uncertainty with intensity forecasts. While ventilation has been examined in numerical modeling studies, there have been a limited number of observational studies investigating ventilation. The two primary objectives of this dissertation are to develop methods for measuring downdraft ventilation from aerial reconnaissance observations and to use those observations to better understand how ventilation affects …

Gender Inequality In Afghanistan's Public Schools: Provincial Disparities Amid Historical And Political Change, 2002-2021, Enayatullah Nasir

Electronic Theses & Dissertations (2024 - present)

This dissertation examines the persistence and spatial concentration of gender-based educational inequality in Afghanistan's public school system from 2002 to 2021–– a period spanning post-2001 reconstruction, the expansion of the Republic era, and the reversal under the second Taliban regime. Despite substantial international investment and two decades of repeated commitments to gender parity, access to and progression through public schooling remained profoundly uneven across the country’s thirty-four provinces. The Gender Parity Index values differ sharply between provinces, and those with the lowest overall enrollment tend to exhibit the widest gender gaps. Existing scholarship has concentrated on the national level, obscuring …

The Ellipsoidal Principal Semi-Axis Geometry Of The Solution To An Ivp For A Matrix Diffusion Pde, Brandon M. Fox

Electronic Theses & Dissertations (2024 - present)

We analyze the underlying geometry of the solution to an IVP for a matrix diffusion PDE. We first derive the fundamental solution to the PDE. We then determine the unique solution to the IVP. From there, we begin analyzing its underlying geometry. We first observe that the geometry exhibits an ellipsoidal nature. Furthermore, we observe that it is described by the principal semi-axis geometry of the ellipsoids associated with the solution. This conclusion follows from applying the Principal Axis Theorem to the associated ellipsoids to establish their principal semi-axis geometry, as governed by the eigenstructure of the matrix. This thesis …

Through Our Eyes: An Exploration Of Hope Among Opportunity Youth, Judith L. Fenlon

Electronic Theses & Dissertations (2024 - present)

Opportunity youth—young people aged 16–24 who are disconnected from both school and employment—experience significant barriers to successful transitions into adulthood. Existing research has largely focused on deficits, risk factors, and outcomes associated with disconnection, often overlooking the strengths, resilience, and aspirations of these young people. Hope has been identified as a critical factor associated with educational achievement, psychological well-being and future orientation; however, little research has explored how opportunity youth experience hope in the context of systemic inequities. The purpose of this study was to explore the lived experience of hope among low-income opportunity youth and to examine the factors …

Masses And The Gothic In The English Novel: 1700-1820, Szu Ying Chen

Electronic Theses & Dissertations (2024 - present)

This dissertation studies the eighteenth-century English novel and expands the understanding of realism by rereading realist novels through Gothic representations of the masses. The conventional understanding of realism is shaped by Ian Watt’s canonical concept of “formal realism” in The Rise of the Novel and Jürgen Habermas’s conception of the bourgeois public sphere. It identifies realism with a vision of civility grounded in the modern individual and bourgeois social reality. However, the masses and the Gothic challenge this conception of the novel’s realism by representing the social as constituted by collective agency, political violence, and struggles over power rather than …

Dynamic Effects Of Economic Shocks Under Uncertainty, Seojin Jung

Electronic Theses & Dissertations (2024 - present)

This dissertation studies the dynamic effects of economic shocks under uncertainty across three self-contained essays.

The first essay introduces a two-stage model averaging estimator for impulse response functions that flexibly combines local projection (LP) and vector autoregression (VAR) methods, as well as different statistical paradigms (Bayesian or frequentist). In the first stage, we compute weights within the LP and VAR groups. A second-stage weight then integrates the two groups by accounting for their structural differences and incorporating their respective strengths. Monte Carlo simulations illustrate a typical bias-variance trade-off: LP-based estimators tend to exhibit lower bias, whereas VAR-based estimators display lower …

Essays On Financial Econometrics And Macro-Financial Forecasting, Zhendong A. Li

Electronic Theses & Dissertations (2024 - present)

The first chapter proposes an innovative supervised learning technique for dimension reduction and forecasting financial and macroeconomic time series in the presence of weak factors that can undermine the effectiveness of traditional Principal Component Analysis (PCA). This approach employs double or multiple supervised learning procedures and is termed ``Supervised Scaled Principal Component Analysis'' (SsPCA). Initially, each predictor is scaled using its predictive slope on the target forecast variable, giving more weight to those with stronger predictive abilities and less to those with weaker ones. Subsequently, utilizing the scaled predictors, we intelligently identify the most informative subset for prediction. This involves …

Psychometric Properties Of A Novel Affective Bias Task And Its Application In Clinical And Nonclinical Populations, Prathik Kalva, Kourtney Kanja, Brian A Metzger, Xiaoxu Fan, Brian Cui, Bailey Pascuzzi, John Magnotti, Madaline Mocchi, Raissa Mathura, Kelly R Bijanki

Faculty, Staff and Students Publications

To mitigate limitations in self-reported mood assessments, we introduce a novel affective bias task (ABT). The task quantifies instantaneous emotional state by leveraging the phenomenon of affective bias, in which people interpret external emotional stimuli in a manner consistent with their current emotional state. This study establishes task stability in measuring and tracking depressive symptoms in clinical and non-clinical populations. Initial assessment in a large non-clinical sample established normative ratings. Depressive symptoms were tracked relative to task performance in a non-clinical sample, as well as in a clinical cohort undergoing surgical evaluation for severe epilepsy. In both cohorts, a stronger …

Comparing Us Medicare Coverage Options As A Contributing Mechanism To Sticking Or Switching To An Insurance Plan, Lisa M. Grabert, Brian J. Miller, Kathryn L. Wagner

College of Nursing Faculty Research and Publications

Background

In 2025, the US Medicare program is expected to spend over $1.1 trillion taxpayer dollars. A growing trend in the US Medicare program is more beneficiaries electing a private insurer, referred to as Medicare Advantage (MA), to manage their care. Since 2023, a slight majority of Medicare beneficiaries have elected to enroll in MA, yet little is understood about the mechanisms that drive beneficiaries toward their choices.

Methods

Our objective was to examine the association between comparing coverage options and ‘switching’ or ‘sticking’ with Fee-for-Service (FFS) Medicare or Medicare Advantage (MA). We conducted a panel study, using data from …

From The Goodness Of Our Hearts: A Scoping Review Of Qualitative Literature On Altruism As A Reward Mechanism For Nursing, Jacqueline Christianson, Madaline Mccarthy, Bonnie Sommers-Olson, Emily Horner, Norah L. Johnson

College of Nursing Faculty Research and Publications

Introduction

Altruism, the desire to help others, is a common motivation for choosing a career in nursing. Improved understanding of the role of altruism as a reward or motivation for currently-practicing nurses may inform future interventions to improve effort-reward balance among practicing nurses. Therefore, the purpose of this study was to collect, examine, and present literature on how altruism has been described as a reward mechanism or motivation for engaging in professional nursing.

Methods

This scoping review of literature used the Arksey & O’Malley method, PRISMA-ScR reporting checklist, and Rayyan review management platform. PubMed, Web of Science, and CINAHL were …

An Educational Intervention On Mutual Goal Setting For Hospital Nurses: A Mixed-Methods Study, Teresa Jerofke-Owen, Kristi Opper, Joseph Beiler, Maharaj Singh

College of Nursing Faculty Research and Publications

Background:

Including patients in mutual goal setting is one mechanism to personalize care delivery and improve patient outcomes.

Objective:

The purpose of this study was to examine the impact of a nurse educational intervention about mutual goal setting on nurse engagement and self-efficacy for goal setting and the nurse/patient experience of goal setting.

Methods:

During this explanatory, sequential mixed-methods study, nurse engagement in goal setting and goal quality was assessed through chart audits 1-month pre-intervention (n = 173) and 1 and 3-months (n = 144, n = 137) post-intervention. Nurse self-efficacy was measured with the Appraisal Inventory Tool. Patient experience …

Concerted Proton Transfer In Homogeneous And Heterogeneous Cyclic Hydrogen-Bonded Clusters Of H2o, Hf, And Hcl, Max R. Tucker, Yuan Xue, Nathan R. Speake, Eden Nickolson, Jeremy M. Carr, Gregory S. Tschumper

Chemistry Faculty Research & Creative Works

This work examines various homogeneous and heterogeneous clusters of hydrogen-bonded (HF)x(H₂O)y(HCl)z complexes, where x + y + z = 3 or 4. For each unique cyclic structure associated with the xyz permutations, the geometries of the reactant, product, and transition state (TS) for concerted proton transfer (CPT) were fully optimized using second-order Møller-Plesset perturbation theory (MP2) with a mixed basis set consisting of cc-pVTZ for H atoms and aug-cc-pVTZ for O, Cl, and F atoms (denoted haTZ). Harmonic vibrational frequencies were also computed at the same level of theory to verify the nature of the stationary points. Intrinsic …

Scalable Transfer Of Dna Origami–Directed Nanoparticle Arrays Onto Functional Surfaces Using Thermal Release Tape, Yuwei Zhang, Chikadibia Genevieve Edward, Ethan Keuhn, Shelley D. Minteer, Risheng Wang

Chemistry Faculty Research & Creative Works

Precise integration of DNA origami nanostructures onto functional substrates is essential for advancing electronics, photonics, and biosensing. However, most surface-assembly methods are highly sensitive to substrate type, limiting their broader applications. Here, we introduce a thermal release tape (TRT)-assisted transfer method that enables efficient, large-area printing of DNA origami-guided gold nanoparticle (AuNP-DNA origami) arrays from mica onto diverse surfaces. The method relies on differential adhesion: AuNP-DNA origami arrays form strong electrostatic and hydrogen-bonding interactions with 3-aminopropyltriethoxysilane (APTES)-functionalized receiver substrates, while the TRT adhesive weakens upon heating to 120°C, allowing release from the tape. Using this approach, well-ordered AuNP-DNA origami arrays …

Evaluation Of A Novel Re-Crosslinkable Preformed Particle Gel For Conformance Control In Ultra-High Temperature Reservoirs, Yanbo Liu, Tao Song, Caleb Kwasi Darko, Thomas P. Schuman, Mingzhen Wei, Baojun Bai

Chemistry Faculty Research & Creative Works

Preferential fluid flow remains a major challenge in subsurface energy production and gas storage operations, resulting in excessive water production in mature oil fields, reduced heat extraction in geothermal reservoirs, and low sweep and storage efficiency in CO₂-EOR projects. Polymer gels are widely used to mitigate high-permeability channels; however, conventional systems exhibit limited plugging efficiency and short lifetimes in ultra-high-temperature reservoirs due to poor thermal stability. This study presents a novel ultra-high-temperature-resistant preformed particle gel (UHT-PPG) developed for conformance control in reservoirs with temperatures of 150–275 °C and severe super-K or channeling problems. The material was evaluated in …

Volatile Organic Compound Analysis Of Humboldt Penguin (Spheniscus Humboldti) Preen Oil: A Pilot Study, Dante E. Rojas, Mitchell M. Mccartney, Eva Borras, Michael O. Eze, Abigail Pietrow, Jennifer J. Valvo, Cristina E. Davis

Chemistry Faculty Research & Creative Works

Avian olfaction has gained prominence in recent decades for its roles in social communication and behavior. In penguins, the chemical characterization of preen oil remains limited. In this exploratory study, we characterized the volatile organic compound (VOC) profile of preen oil from Humboldt Penguins (Spheniscus humboldti). Preen oil from 12 captive individuals was analyzed using headspace sorptive extraction (HSSE) coupled to gas chromatography–mass spectrometry (GC–MS). Chemometric analyses examined variation in VOC profiles by sex, age class, and breeding activity. We detected 54 compounds (20 tentatively identified), including linear alcohols, methyl ketones, carboxylic acids, saturated hydrocarbons, oxygenated and nitrogen-containing organics, prenolipids, …

Synthesis Of The Naga(S1−Xsex)2 Solid Solution From Mechanically Activated Precursors, Louisiane Verger, Julien Trébosc, Santhoshkumar Sundaramoorthy, Amitava Choudhury, Olivier Hernandez, Eric Furet, Sébastien Chenu, David Le Coq, Laurent Calvez, Olivier Lafon

Chemistry Faculty Research & Creative Works

NaGaS₂ and NaGaSe₂ are two recently discovered compounds that crystallize in the same structure type. In this work, NaGa(S_1−xSe_x)₂ (x = 0.5, 0.75 and 1) are prepared using an alternative synthesis route, mechanochemistry followed by heat treatment. Na₂S, Na₂Se, Ga₂S₃ and Ga₂Se₃ are milled in stoichiometric proportions. Differential scanning calorimetry, X-ray diffraction and solid-state nuclear magnetic resonance (²³Na and ⁷¹Ga) show that the compounds after milling are composed of crystalline NaGa(S_1−xSe_x)₂ with an amorphous part. …

Progression Toward Terminal Oxidation Of Starch Via Hybrid Organic–Enzymatic Bioanode For Renewable Carbohydrate Conversion, Adam Milam, Jose Intano, Shelley D. Minteer

Chemistry Faculty Research & Creative Works

The performance of starch-based biofuel cells is fundamentally limited by inefficient utilization of the fuel's inherent energy density. Sequential oxidation of carbohydrate fuels, such as glucose, the monomeric unit of starch, using minimal catalyst systems has therefore emerged as a promising strategy to improve biofuel cell efficiency. Here, we extend a previously reported three-catalyst, organic–enzymatic glucose oxidation cascade to polymeric carbohydrate fuels by integrating enzymatic starch depolymerization with downstream electrochemical oxidation. To our knowledge, this represents the first demonstration of a defined hybrid organic–enzymatic cascade designed to drive progression of starch-derived glucose equivalents toward terminal oxidation using a minimal catalyst …

Lessons Learned In Teaching Electrochemistry, Alanah Fitch, Ingrid Fritsch, Carol Korzeniewski, Shelley D. Minteer, Johna Leddy

Chemistry Faculty Research & Creative Works

Students frequently encounter difficulties in learning the vast landscape of electrochemistry. Here are shared examples of methods to demystify electrochemistry based on the extensive experience of the authors. Topics include a perspective on the shape of a voltammogram viewed as Ohm's Law, an extrapolation to electrochemical impedance spectroscopy (EIS), potential axes to identify spontaneous reactions, and select examples from organic and biological electrochemistry. Explained is the rationale behind certain Go To molecules used in electrochemical experiments such as ferrocene, ferricyanide, and other inorganic and organic electroactive molecules. Finally, more than sigmoidal curves are needed to confirm electrocatalysis. The domain of …

Soft-Chemical Scalable One-Pot Aqueous-Medium Synthesis Of Na3(Vo)2(Po4)2f-Based Cathodes: Compositional Tuning And Electrochemical Performance In Na- And Li-Ion Batteries, Prashanth Sandineni, Subal Chandra Manna, Sutapa Bhattacharya, Santhoshkumar Sundaramoorthy, Ramesh Deokate, Milad Aghayi-Anaraki, George E. Sterbinsky, Kartik Ghosh, Amitava Choudhury

Chemistry Faculty Research & Creative Works

One of the most important cathode materials for Na-ion batteries, Na₃(VO)₂(PO₄)₂F, and its compositional variants have been synthesized using four different and facile one-step soft chemical routes. The as-synthesized compounds, Na_2.95(VO)₂(PO₄)₂F (I), Na_2.93(VO)₂(PO₄)₂F (II), and Na_2.58(VO)₂(PO₄)₂F (IV), crystallize in the tetragonal crystal system in the P4₂/mnm space group, while Na₃(VO)₂(PO₄)₂F (III) crystallizes in the orthorhombic crystal system in …