Digital Commons Network^™

Understanding Host Behaviour And Property Review Characteristics Using New York City Airbnb Dataset, Anna Szkwara

ICT

This project applies strategic thinking and the CRISP-DM methodology to analyse Airbnb listings in New York City and identify patterns associated with host performance and market vulnerability. Airbnb has become a major global accommodation platform, creating opportunities for individual hosts while also increasing competition within the short-term rental market. The project focuses on whether data-driven analysis can identify factors that may influence host success and provide useful insights for hosts with less experience or expertise than larger hospitality organisations. The dataset contains 85 variables, many of which require careful evaluation due to redundancy, high cardinality, sensitivity, or limited relevance to …

Predicting Product Returns In Online Retail, Mihaela Cristina Stefanache

ICT

Product returns are a significant challenge for online retailers, contributing to additional operational costs and affecting inventory management and profitability. This project develops and evaluates three machine learning models to predict product returns for a UK online retailer, building on the data understanding and preparation completed in the previous CA2 capstone project. Following the CRISP-DM framework, the study extends the analysis through enhanced exploratory data analysis, feature engineering, model development, hyperparameter optimisation, cross-validation, and model interpretability. Logistic Regression, a Tuned Random Forest, and XGBoost are evaluated, with the Tuned Random Forest achieving the strongest overall performance, obtaining an F1 score …

Development Of Stronger, More Extrudable 6xxx Series Alloys For Automotive Applications, Eli A. Harma

Dissertations, Master's Theses and Master's Reports

6xxx alloys are widely used in automotive extrusion structures for their high specific strength and formability. Advanced designs require greater formability and strength, creating an opportunity for high-strength, formable alloys. The 6xxx series forms β”-Mg₅Si₆ precipitates during age hardening and develops a fibrous microstructure during extrusion, both strengthening the alloy. Increasing Mg and Si to form more β” decreases formability. Thus, modifying texture can increase strength without reducing formability. Current alloys like 6005A add Mn and Cr to form dispersoids that inhibit recrystallization and promote strengthening textures; however, high Mn and Cr concentrations reduce formability. Replacing Mn …

Spatiotemporal Patterns Of Migratory Songbird Habitat Use: An Analysis Of Environmental Drivers At The Net Level, Garrett Kucharski

Dissertations, Master's Theses and Master's Reports

Many eastern North American migratory songbirds are declining at alarming rates, and growing evidence suggests that events occurring away from the breeding grounds, particularly during migration, can be major drivers of these trends. Stopover sites are a key component of migration because they are where birds rest, refuel, and recover before continuing long-distance movements, yet the ecological factors that shape how broadly different species use stopover habitat remain unresolved. From both an applied perspective, identifying habitat attributes associated with use by the greatest diversity of migrants will help land managers prioritize and restore stopover sites, actions that may contribute to …

Mechanical Fractionation Of Wheat Middlings For Application In Pyrolysis And Animal Feed, Okwudili I. Obiakor

Dissertations, Master's Theses and Master's Reports

Wheat middlings are grain byproducts that are underused for bioenergy production despite having a high lignocellulose content. Its use as a feedstock for catalytic pyrolysis depends on effective and sustainable fractionation to enhance efficiency and product yield. This study tested mechanical pre-fractionation (sieving and air classification) to reduce ash content of certain fractions to < 1% for catalytic pyrolysis and enrich nutrient levels of other fractions for feed applications. Wheat middlings were separated into 11 fractions using screen sizes from 106 µm to 1651 µm, and the composition of each fraction was characterized (ash, protein, structural carbohydrates, lignin, starch, and simple sugars). For cyclone separation, a full factorial design was used to study the effect of air velocity (15,18, 20 m/s) and feed rate (33, 35, 38 kg/h) on the amount of material collected in the underflow and overflow, and the composition of these fractions was characterized. Sieving showed a pronounced segregation of ash content, from 4.5% to 6.5% in wheat middlings fractions, with 5.7% being the lowest for coarse fractions which has higher lignocellulose content, and 4.5% in the fine fraction (150-212 µm). The same defined enrichment was observed in all nutrients except for protein. Starch enrichment zone were defined in the fine fractions (212 µm and below), for structural carbohydrates and lignin in the coarse fractions (600 µm and above), and for ash in coarse fractions (1180-1651 µm). In contrast, protein content was not significantly different between various fractions (p value=0.787). The fiber rich fraction (> 600 µm), suitable for pyrolysis, which have a composite ash value of 6.0% can be sorted and mixed with intermediate fractions to reduce ash to 5.3% and the remaining fractions rich in digestible nutrients used for animal feed formulation. Compared to sieving, cyclone separations did not …

Fluctuation Of Organochlorine Concentrations In Bull Sharks At Different Life Stages, Mackenzie R. Phillips

Dissertations, Master's Theses and Master's Reports

For Carcharhinid species such as the bull shark (Carcharhinus leucas), the maternal offloading of nutrients is essential for pup development and growth, however, significant amounts of OCs are also transferred. As a top predator in aquatic food webs, bull sharks can potentially bioaccumulate high concentrations of pollutants such as dichloro-diphenyl-trichloroethane (DDT) that biomagnify through aquatic food webs. These pollutants are also hydrophobic and fat soluble and therefore pose toxicity risks to developing young bull sharks. In this study, liver tissues collected from juvenile bull sharks inhabiting Florida’s coastal waters were analyzed for a suite of organochlorine pesticides (OCs) …

Changing Snow Hydrology In The Great Lakes And Resilience Through Adaptive Management, Aradea R. Hakim

Dissertations, Master's Theses and Master's Reports

A number of studies have found that global snow cover is generally decreasing, but a closer examination at regional scales shows greater complexity. In the Great Lakes basin, contrasting trends have been identified. While snow cover is generally decreasing basinwide, leeward (downwind) regions have experienced increases in snowfall and snow cover. Changes in snow dynamics are also associated with shifts in runoff timing and volume due to earlier snowmelt and changing precipitation patterns. Streamflow analyses at gauges across the Great Lakes basin indicate trends toward earlier peak runoff and longer runoff periods, although these patterns vary among watersheds and lake …

Application Of Reactive Power Theory To Wave Energy Converters Under Multi-Frequency Excitation: Analysis And Experimentation, Mckenna R. Collins

Dissertations, Master's Theses and Master's Reports

There is abundant energy surging in the oceans across the globe. However, there have been technological challenges in extracting that energy for use. Wave energy converter (WEC) technology is being developed to find innovative ways to convert wave kinetic energy into electricity, but there are still efficiency obstacles that inhibit large-scale use. Focusing on heave-point absorber control theory, this thesis continues the work to improve the efficiency of WECs. This is done by leveraging a superposition of linear mass-spring-damper models to analyze a WEC under multi-frequency excitation and applying proportional-derivative gains to each linear model. However, to analyze this system, …

Reading Between The Lines: Protected, But Not From Interpretation, Hooriya Habib

Dissertations, Master's Theses and Master's Reports

In the realm of television, audiences are interactive viewers who decode meaning based on their lived experiences. Given that each culture has its own set of cultural codes it uses as a lens to navigate life, meanings do not remain constant. This cultural media study breaks down three advertisements to study the effectiveness of these advertisements in relation to religious and cultural codes. Using Stuart Hall’s (1980) encoding/decoding model, an oppositional reading was employed to understand the disconnect that may be caused between an audience of rural Pakistani women and the producers. Objects of focus were nonverbal codes such as …

Open Source Tools For Ecological Research, Alex P. Riebe

Dissertations, Master's Theses and Master's Reports

This thesis presents the development of an open source wireless sensor network for hibernacula manipulation with an emphasis on accessibility and reproducibility. It addresses the design of the electrical hardware, guidance on antennas and RF implementation, and design of an application-specific communication protocol, all with the explicit goal of enabling ecologists and other conservationists to be able to manufacture, deploy, operate, and maintain the system for their research. The resulting sensor network designed in this thesis is to control the temperature inside bat hibernacula during the winter to study the relationship between temperature and bat mortality rate due to White …

Design And Validation Of A Low-Cost Wearable Electromyography (Emg) System For Monitoring Exercise-Induced Changes In Muscle Activity, Ingrid E. Halverson

Dissertations, Master's Theses and Master's Reports

Wearable technologies have expanded opportunities for monitoring athletic performance, but many existing systems remain costly and confined to laboratory or medical settings. This thesis presents the design, development, and evaluation of a low-cost, wearable EMG platform for monitoring neuromuscular activity during exercise. A wireless device incorporating a surface EMG sensor, an ESP32 microcontroller, and Wi-Fi transmission was developed to acquire muscle activation data. Signal processing techniques, including filtering, root-mean-square (RMS), mean frequency (MNF), and median frequency (MDF) analyses, were used to evaluate changes in muscle activation. Experimental testing demonstrated reliable wireless data acquisition and successful capture of physiological changes before …

Bayesian Analysis Of Nominal Outcomes With Missing Values Using Multinomial And Multivariate Multinomial Probit Models, Suwash Silwal

Dissertations, Master's Theses and Master's Reports

Nominal outcomes frequently arise in health sciences, transportation, economics, market research, and related fields. These data often contain missing values, while longitudinal and panel studies generate multiple correlated nominal responses. Bayesian estimation of multinomial probit (MNP) and multivariate multinomial probit (MMNP) models provides a flexible framework for analyzing such data but remains computationally challenging due to high-dimensional likelihood integration, restrictive covariance identification constraints, and poor mixing of Markov chain Monte Carlo (MCMC) algorithms, particularly in the presence of missing data. This dissertation develops parameter-expanded data augmentation (PX-DA) methods for MNP and MMNP models with missing nominal outcomes by incorporating parameter …

Beyond Receptive Measures: Development And Validation Of The Spatial Grid Drawing Assessment (Sgda) As A Productive Measure Of Spatial Skill, Katrina L. Carlson

Dissertations, Master's Theses and Master's Reports

Spatial skills are vital in many STEM disciplines, starting at or prior to university training, and often extending throughout one’s career. The most widely used spatial ability measures (e.g., PSVT: R, MRT) rely on what I refer to as receptive skills: examining an object or design, mentally transforming it, and comparing it to given alternatives. But because work in many STEM disciplines also involves productive spatial skill such as drawing, I hypothesize that a productive measure of spatial skill may predict distinct aspects of spatial ability. This research investigates the relationship between traditional receptive Spatial Visualization (SV) assessments, such as …

Methodology Development For Evaluating Relative Heat Checking Resistance Of Open-Die Forge Tooling, Jack F. Schaller

Dissertations, Master's Theses and Master's Reports

Heat checking, characterized by biaxial networks of surface cracks induced by thermomechanical cycling, can cause premature failure of open-die forge tooling. To facilitate the evaluation of heat checking resistance of die steels, a simulation‑informed out-of-phase thermomechanical fatigue (OP-TMF) testing methodology was developed using 4330V steel as a baseline material. Temperature‑dependent material properties and flow stress data were collected and compiled into a material data file for use with finite element analysis software. Forging and cooling scenarios were simulated across a range of die preheat temperatures. Temperature and in-plane strain histories extracted from the die surface provided a foundation for laboratory …

Slip Kinematics And Structural Analysis Of The Keweenaw Fault System From Lake Linden To Hancock, Michigan, Katherine M. Langfield

Dissertations, Master's Theses and Master's Reports

The Keweenaw fault is a crustal-scale fault spatially associated with Mesoproterozoic rocks of the Midcontinent Rift System. Along the fault, older Portage Lake Volcanics have been thrust southeastward over younger Jacobsville sandstone. Ideas on the fault’s origin, from oldest to most recent, include that it is: (1) a reverse fault, (2) a normal fault formed during midcontinent rifting that was reactivated and inverted to a reverse fault during the Grenville orogeny, and (3) a detached thrust fault system initiated during the Grenville orogeny.

This thesis is based on a U.S. Geological Survey EdMap grant to remap a portion of the …

Real Time Waste Classification Using Deep Learning: Comparing Mobilenetv2 And Resnet 18 With Transfer Learning And Fine Tuning, Abdul Moaiz

ICT

Waste contamination is a major problem all over the world. The Environmental Protection Agency reports that over two thirds of waste found in general household and commercial bins could have been placed in the recycling or organic waste bins instead in Ireland, with food waste and plastics being the most common misplaced items. This project presents a deep learning solution to classify nine categories of waste from camera images in real time with the goal of helping users sort waste correctly at the source. Following the CRISP DM framework, two convolutional neural network architectures were trained and compared, MobilenetV2 and …

Bitcoin Prediction System Usind Machine Learning Techniques, Carolina Azevedo De Castro

ICT

This project investigated the use of machine learning techniques to predict short-term Bitcoin price direction using historical market data obtained from Yahoo Finance. Following the CRISP-DM methodology, the dataset was analysed, prepared, and transformed through feature engineering techniques including moving averages, volatility indicators, return measures and price position metrics. Multiple classification algorithms were evaluated, including Bayesian Classification, K-Nearest Neighbour, Decision Tree, Random Forest, Logistic Regression, Support Vector Machine and XGBoost. Several optimisation strategies were also tested, including feature selection, hyperparameter tuning, feature scaling and class weight balancing. Results showed that predicting short-term Bitcoin price movements remains challenging, with most models …

Predictive Maintenance For Manufacturing Equipment, Paloma De Andrade Batista

ICT

Unplanned equipment downtime is a significant challenge in manufacturing, resulting in substantial productivity losses and operational costs. Predictive maintenance, enabled by machine learning and big data analytics, offers an opportunity to identify potential equipment failures before they occur and improve maintenance efficiency. This report extends a previous capstone project that applied Random Forest and Logistic Regression to the AI4I 2020 Predictive Maintenance Dataset. The current study expands the analysis by incorporating XGBoost, systematic hyperparameter optimisation, cross-validation, and SHAP-based model interpretability. In addition, SWOT and PESTLE analyses, alongside a legal and ethical assessment, examine the broader strategic and responsible implementation of …

Predicting Loneliness Among Older Adults In Ireland Using Supervised Machine Learning, Ariadne Chaves Miranda

ICT

Over the last two decades, technology has grown exponentially and has facilitated communication that helps individuals remain connected. However, this has also contributed to social isolation and lack of physical interaction. One consequence of this phenomenon is loneliness, which is understood as an unpleasant subjective state of discrepancy between the desired amount of companionship or emotional support and what is available in the person’s environment (Prohaska and Burholt, 2020). In the European context, Ireland has emerged as the loneliest country in Europe with 20% of its population that have reported feeling lonely most or all the time (Schnepf et al., …

Consensus Decision-Making: Decision-Making Model Of Chinese Constitutional Review, Songfeng Li

Emory International Law Review

The judgment model of constitutional review in China adopts a consensus-based judgment model involving multiple stakeholders, including review authorities, drafting authorities, relevant interest parties, and the general public. Through multi-level, multi-stage, and multi-round interactive communication and negotiation, consensus is reached on constitutional judgments. This judgment model aligns with the power division political system under the NPC system, reflecting the institutional concept of people’s sovereignty and the cultural foundation of valuing harmony. It is also a result of the decentralization of constitutional review authority leading to insufficient power for actual reviewers, the parallel nature of factual and normative judgments in constitutional …

America’S Spectacle: The Business Of Female Beauty In Professional Cheerleading, Marlene Adelman

Capstone Showcase

The National Football League (NFL) is built on values that also represent the deep rooted patriarchal structures within the country it exists in. The NFL is more than a game; it’s a mirror of America’s powerful subjugation of its women. Using one of the most recognizable cheerleading teams, the Dallas Cowboys Cheerleaders, this thesis aims to illustrate how gender is constructed and commodified in professional sports media, which reinforces the male gaze, furthers racial and gender inequalities, and contributes to women’s mental health and body image issues. This paper uses several theories, including male gaze, gender, and intersectionality, along with …

Visual Aids And Numeracy In Healthcare: Leveraging The Drawing Effect, Zephyr J. Markley

Capstone Showcase

Healthcare decisions often require patients to interpret numerical risk information under stress, yet many struggle with low numeracy, which can distort comprehension and undermine informed consent. Well-designed visual aids can improve diagnostic inference, calibrate confidence, and support better choices, especially for patients with limited numeracy, but their impact depends on whether users can actually interpret the format accurately. Drawing may further enhance these tools by adding a tactile, generative layer that engages visual, semantic, and motoric processing while helping patients organize information into concrete models.

Passive visual aids appear useful but limited because they often position patients as observers rather …

Effectiveness Of A Task-Oriented Exercise Program In Managing Idiopathic Scoliosis: A Case Report, Daphne N. Olipas

Capstone Showcase

Abstract

Background and Purpose: Scoliosis is a musculoskeletal condition that commonly affects adolescents characterized by an abnormal multiplanar curvature of the spine. This condition may result in postural imbalance, trunk asymmetry, and limitations in functional activities. Exercise-based interventions are designed to enhance spinal stability, promote postural awareness, improve respiratory function, and support participation in daily activities. This case report aims to evaluate the effectiveness of a structured therapeutic exercise program for a person diagnosed with idiopathic scoliosis. The intervention program includes core stabilization exercises, postural re-education, breathing exercises, and functional training.

Case Description: A 14 year-old female was referred to …

Roll The Dice: Do Fostered Youth Stand A Chance In Juvenile Justice?, Marina Rios

Capstone Showcase

Foster youth remain dramatically overrepresented in the juvenile justice system, accounting for up to almost a quarter of system-involved youth despite comprising less than 5% of the general population. Prior research on this subject indicates that foster youth tend to face disproportionately punitive responses, systemic challenges linked to trauma, placement, and instability, as well as limited access to diversion programs. This project aims to examine the disparities that foster youth face that result in juvenile justice involvement, as well as focusing on how structural barriers influence detention rates, sentencing outcomes, and opportunities for rehabilitation. Through an analysis of current literature, …

From County To Commonwealth: A Study Of Kentucky County Election Office Websites And Collaborative Solutions For Strengthened Voter Information Accessibility, Marissa A. Robinson, Marina E. Smart

MPA/MPP/MPFM Capstone Projects

In 2022, the League of Women Voters discovered inconsistencies across Kentucky county clerk websites in how they offer voter information and in website accessibility and clarity. County clerk websites serve as an important source of accessible voting procedural information, trusted by constituents. Through an audit of county clerk websites and interviews with county clerks, this project identifies how county election office websites can better provide equitable, accurate, comprehensive, and consistent voting information. Recommendations based on the findings include linking the Kentucky State Board of Elections Voter Information Portal universally, adding website training, and state-established website guidelines.

The Political Economy Of Pfas Treatment And Water Regionalization In Harrison County, Kentucky, Jackson S. Patru, Rajan Sampat

MPA/MPP/MPFM Capstone Projects

The discovery of per- and polyfluoroalkyl substances (PFAS) in the water supply of Harrison County, Kentucky has prompted an urgent reevaluation of local treatment infrastructure. This situation has exposed a complex political economy between the City of Cynthiana, which owns and operates the municipal water plant, and the Harrison County Water Association (HCWA), which represents the majority of the ratepayers supplied by the plant. Using a qualitative research design grounded in inductive thematic analysis, semi-structured interviews were conducted with leadership from both Cynthiana and HCWA, as well as operators at the treatment plant, to evaluate two proposed solutions: a $14 …

Comparing Economic Development And Blight Remediation Tax Increment Financing: Design, Governance, And Measurable Outcomes, Leigh Compton

MPA/MPP/MPFM Capstone Projects

Tax Increment Financing (TIF) is a widely used local government tool for redevelopment and economic growth, yet its expanding application has raised questions regarding its design, governance, and measurable outcomes. This study compares two primary uses of TIF: blight remediation and economic development. While remediation-focused TIF is intended to address identifiable market failures in distressed areas, economic development TIF is typically used to attract or accelerate private investment in more competitive environments.

Using a structured comparative analysis of selected Kentucky TIF districts, this research evaluates how differences in statutory justification, financing mechanisms, governance structures, and performance measures align with each …

Substance Abuse: Causes, Effects, And Treatment Approaches, Ambrea A. Watkins

Integrated Studies

Abstract

Substance abuse continues to be one of the most significant public health and social challenges facing the United States. Substance use disorders affect millions of individuals each year and have serious consequences for families, communities, and public systems such as healthcare and criminal justice. Addiction is widely recognized as a chronic brain disease that can alter behavior, decision making, and impulse control. Many individuals who struggle with substance abuse also experience related issues such as mental illness, homelessness, poverty, and involvement in the criminal justice system.

This research paper examines the causes, impacts, and treatment approaches related to substance …

The Impact Of Inclusive Education On Early Childhood Development And Learning Outcomes, Courtney A. Hardin She

Integrated Studies

The importance of inclusive education in early childhood cannot be overstated. Inclusive practices impact all areas of a child’s development, including academic achievement, social interaction, and emotional well-being. This paper explores the relationship between inclusive education practices and positive developmental outcomes for children with diverse learning needs. The topic is in response to the ongoing need to create equitable learning environments where all students can fully participate and succeed. This research paper examines how inclusion, early intervention, and effective instructional strategies support student development. Research supports that inclusive education, when paired with strong teacher preparation and systemic support, is essential …

Kentucky Probation And Parole: Recognizing The Need For A Larger Workforce, Brent T. Burgess

Integrated Studies

Abstract

Kentucky’s Department of Probation and Parole needs additional officers. While officers are being added, caseloads continue to rise and officers in Kentucky are feeling exhausted. This research project focuses on examining some of the main issues behind the cause and effects that probation and parole officers are facing in Kentucky. The research lists the different aspects of both probation and parole and the dissentions between state and federal probation, since parole was abolished by the federal system 1987. The project includes new legislative reform movements taking place in attempts to reduce the high populations of Kentucky’s jails and prisons …