Digital Commons Network^™

Personalized Persuasion In The Digital Age: A Data-Driven Approach To Effective Communication, Annye Braca

Doctoral

This thesis investigates the potential of Machine Learning (ML) to personalize persuasive marketing messages. It explores the identification of individuals receptive to specific persuasion techniques based on their psychometric profiles. By developing ML models that incorporate these profiles, the thesis aims to predict the impact of tailored messages and improve the effectiveness of marketing communication.

Development Of Holographic Optical Elements For Application In Wound Healing Monitoring, Pamela Stoeva

Doctoral

Growing global healthcare challenges, including the increasing prevalence of chronic wounds, necessitate the development of cost-effective, reusable, and readily accessible sensors for real-time wound monitoring. Such devices could extend basic healthcare to remote areas and support long-term space missions by facilitating on-the-spot wound assessment. Sensors that utilise Holographic Optical Elements (HOEs) are promising candidates due to their diverse sensing capabilities, advantageous physical properties (e.g., lightweight and flexibility), and suitability for mass manufacturing. The fundamental biochemical processes associated with wound healing are typically related to parameters such as oxygen levels, pH, temperature, and lactate concentration. Realtime quantification of these parameters enables …

Highly Sensitive Diffractive Optical Structures For Detection Of Volatile Organic Compounds, Faolan Radford Mcgovern

Doctoral

From aerospace to agriculture, sensors play a fundamental role in many aspects of modern life. Sensors form an integral part of the complex systems and devices required for the continued functioning and development of services and industries across society. The use of sensors is paramount in areas affecting human health, one such area being the monitoring of indoor air quality, in particular the detection of volatile organic compounds (VOCs). Human contact with VOCs has been associated with many health complications, including skin and eye irritation, cardiovascular damage, and cancers. Optical, electrical, gravimetric, and chemical sensors have been developed for VOC …

Capacity Building In The Irish Brewing And Distilling Sector For Raw Materials Utilisation, By-Products Management, And Environmental Impact Assessment, Ekene C. Umego

Doctoral

The Irish brewing and distilling sector has shown a consistent increase in number, production output, sales, and export value in the last decade. This has implications for raw materials requirements, assessment, and by-products management for the sustainability of the sector. As a result, the main aim of this research study was to evaluate the status of raw materials use and assessment within the Irish brewing and distilling sector, explore by-products management options and valorisation initiatives, and analyse the environmental impact of Irish whiskey production. The first approach was a survey study to collect data on major raw material inputs use …

The Detection Of Multiple Human Papillomavirus (Hpv) Types Through The Development Of An Isothermal Dna Amplification Assay, Lauren Powell

Doctoral

Human Papillomaviruses (HPV) belong to the Papillomaviridae family, with over 200 known types classified into high-risk (HR-HPV) and low-risk (LR-HPV) groups based on their carcinogenic potential. While most HPV infections are asymptomatic and transient, persistent infection can lead to health issues, including cervical cancer. Given the high prevalence of HPV and its potential for malignant transformation, nucleic acid amplification assays have become a widely implemented tool for routine HPV testing. This study developed a real-time isothermal DNA amplification assay for the detection and differentiation of multiple HPV types. A universal primer set was designed to target a highly conserved region …

Overcoming Racial Harms To Democracy From Artificial Intelligence, Spencer A. Overton

GW Law Faculty Publications & Other Works

While the United States is becoming more racially diverse, generative artificial intelligence and related technologies threaten to undermine truly representative democracy. Left unchecked, AI will exacerbate already substantial existing challenges, such as racial polarization, cultural anxiety, antidemocratic attitudes, racial vote dilution, and voter suppression. Synthetic video and audio (“deepfakes”) receive the bulk of popular attention—but are just the tip of the iceberg. Microtargeting of racially tailored disinformation, racial bias in automated election administration, discriminatory voting restrictions, racially targeted cyberattacks, and AI-powered surveillance that chills racial justice claims are just a few examples of how AI is threatening democracy. Unfortunately, existing …

Perspectives Of Midwives And Nurse Practitioners In Kentucky On Exercise Counseling During Pregnancy: A Qualitative Study, Madhawa Perera, Taniya S. Nagpal, Maire M. Blankenship, Dano Tolusso, Jordyn Cox, Dilini Prashadika, Mark Schafer, Rachel A. Tinius

Physical Therapy Faculty Research and Publications

Introduction

Healthcare professionals are in an optimal position to deliver exercise information to pregnant women, yet previous research suggests this seldom happens. Midwives and nurse practitioners, who may have more time with pregnant women, are particularly well suited for this role.

Objectives

This qualitative study examined the exercise advice and counseling provided by midwives and nurse practitioners in Kentucky, focusing on the barriers they face.

Methods

Twenty-one midwives and nurse practitioners were recruited until the sample size reached saturation. A survey with open-ended questions was distributed to potential participants in regional hospitals, universities, and professional associations. The framework method was …

Rebuttal: Reduced Oxidative Capacity Of Skeletal Muscle Is Not An Inevitable Consequence Of Adult Ageing, Ian R. Lanza, Christopher W. Sundberg, Jane A. Kent

Physical Therapy Faculty Research and Publications

We thank Drs Marcinek and Ferrucci for their perspective on the inevitability of age-related declines in skeletal muscle oxidative capacity (Marcinek & Ferrucci, 2025). We agree that mitochondria have numerous roles in the cell beyond provision of chemical energy, many of which may be altered by ageing, but our focus in this debate is entirely on its role in energy production.

Effect Of Trauma Type And Trauma Burden On Self-Efficacy For Physical Exercise In Military Veterans, Kaley E. Davis, Meghan M. Bennett, Cecilia J. Hillard, Jeffrey Whittle, Zeno Franco, Rachel E. Bollaert, Jacklynn M. Fitzgerald

Exercise Science Faculty Research and Publications

Introduction

United States (U.S.) military veterans experience significant physical health problems. Lifestyle modifications, such as increasing daily physical activity, are often considered the first course of action in treatment for the general public. However, veterans report low levels of physical activity, often due to perceived barriers to engaging in exercise. Trauma exposure type and cumulative trauma burden may be differentially associated with exercise attitudes and behaviors.

Methods

We surveyed U.S. military veterans on perceived self-efficacy to overcome barriers to engaging in exercise and physical activity levels. Additionally, we explored the relationship between the type of traumatic event exposure and cumulative …

The Vietnam War And The Regional Context, Wen-Qing Ngoei

Research Collection School of Social Sciences

This chapter traces Southeast Asia’s overall pro-U.S. trajectory from before and through the American war in Vietnam, a process in which the region’s anticommunist nationalists collaborated with the United States and Britain to gain, and remain in, power. Between the late 1940s through the early 1960s, indigenous anticommunist elites in Thailand and the Philippines rose to political dominance with U.S. assistance; in Malaya and Singapore they did so with British support. The United States and Britain, with their Malayan and Singaporean allies, would influence developments within Indonesia that precipitated the Indonesian Army’s rightwing coup of 1965, a transformative event that …

China's Global Leadership Aspirations And Domestic Support For Climate Policy, Chen Xiang, Terry Van Gevelt

Research Collection College of Integrative Studies

In recent years, China has pivoted towards a global leadership role in mitigating and adapting to climate change. Notwithstanding the complex political economic reasons underlying China's global leadership aspirations, we are interested in seeing whether the associated national discourse championed by the state increases domestic support for climate policy. That is, do China's international leadership aspirations foster a unifying sense of national pride among the domestic population, thereby lending support to the legitimacy of the state and expediting the implementation of costly domestic climate policies? To test our hypothesis, we enumerated a vignette experiment embedded with conjoint analysis to a …

An Eye-Tracking Study Of Gaze Guidance And Visual Integration Effects On Attention, Learning, And Instructor Social Presence, Sonny Rosenthal, John Komar, Vanessa Simin Ho

Research Collection College of Integrative Studies

This study used the gaze-cueing effect and split-attention principle to study the impact of gaze guidance and lecture recording format on attention, knowledge retention and instructor social presence. The authors analysed data from 250 participants in a mixed factorial experiment with eye-tracking, self-reported instructor social presence and a delayed knowledge measure as dependent variables. Results showed that when the instructor looked at the slide content, participants spent more time looking at it (η2p = 0.044), but instructor social presence decreased (η2p = .040). The strongest decrease occurred when the content and instructor’s image were separated in a picture-in-picture video (η2p …

Mapping The End Of Coal: How Policy Strength, Ownership, Finance Shape Global Plant Retirements, Jiwon Kim, Theodor Florian Cojoianu, Theodor F. Cojoianu, Maretno Agus Harjoto, Dariusz Wojcik

Research Collection College of Integrative Studies

This study examines how national environmental performance, institutional investor divestment from fossil fuels, investment in renewable energy, and ownership type influence the global phase-out of coal power plants, and whether these effects are constrained by geographical boundaries. Using data on coal plant retirements across 90 countries, we test whether domestic and cross-border factors shape the timing and likelihood of asset closure. We find that companies headquartered in countries with stronger environmental performance are more likely to retire domestic but not foreign plants. While institutional investors divestment is often assumed to exert cross-border influence, our findings show that divestment pressure by …

Do Urinary Metabolites Reflect Occupational Exposure To Organophosphate Flame Retardants? A Case Study In Electronic Waste Recycling Workers, Sabrina Gravel, Inna Tata Traore, Miriam Diamond, Liisa Jantunen, Joseph Zayed, France Labrèche, Marc-André Verner

Études primaires

Organophosphate esters (OPEs) are commonly used in electronic devices to meet safety standards, but electronicwaste recycling (e-recycling) workers may face significant exposure to those potentially hazardous compounds in their workplace. We examined the relationship between urinary OPE metabolites and their parent compounds in the air, in Canadian e-recycling facilities. We collected personal air samples and end-of-shift urine samples from workers at six e-recycling facilities. We employed linear and Tobit regression models to assess associations between air concentrations of triphenyl phosphate (TPhP) and three metabolites, of tris (2-chloroethyl) phosphate (TCEP) and two metabolites, of tris (2-chloroisopropyl) phosphate (TCPP) and two metabolites, …

A Survey On Non-Invasive Computing: Neurological-Hematological Framework For Early Infection And Stroke Detection With Future Directions, Masud Rabbani, Nafi Us Sabbir Sabith, Sheikh Iqbal Ahamed

Computer Science Faculty Research and Publications

This paper introduces a novel, non-invasive tool for building a holistic neurological-hematological diagnostic framework that can be used for early detection of infection and stroke. We proposed and developed a multimodal sensing approach, where an ear canal–based acoustic system can be used to identify brain activities and a smartphone-based facial video analysis platform to estimate white blood cell (WBC) and hemoglobin (Hb) levels. Our ear-based EEG methodology achieved a remarkable 96% classification accuracy from the low-frequency level (>30hz), with regression models with mean R2 scores above 0.96 across all EEG bands. For hematological diagnostics, the system predicted WBC counts …

Fine-Tuned Large Language Models (Llms): Improved Prompt Injection Attacks Detection, Md Abdur Rahman, Hossain Shahriar, Guillermo Francia, Fan Wu, Alfredo Cuzzocrea, Sheikh Iqbal Ahamed

Computer Science Faculty Research and Publications

Large language models (LLMs) are becoming a popular tool as they have significantly advanced in their capability to tackle a wide range of language-based tasks. However, LLMs applications are highly vulnerable to prompt injection attacks, which poses a critical problem. These attacks target LLMs applications through using carefully designed input prompts to divert the model from adhering to original instruction, thereby it could execute unintended actions. These manipulations pose serious security threats which potentially results in data leaks, biased outputs, or harmful responses. This project explores the security vulnerabilities in relation to prompt injection attacks. To detect whether a prompt …

Vulnerability To Stability: Scalable Large Language Model In Queue-Based Web Service, Md Abdul Barek, Bajlur Rashid, Mostafizur Rahman, A.B.M. Kamrul Islamc Riad, Guillermo Francia, Hossain Shahriar, Sheikh Iqbal Ahamed

Computer Science Faculty Research and Publications

Large Language Models (LLMs) have demonstrated exceptional capabilities in the field of Artificial Intelligence (AI) and are now widely used in various applications globally. However, one of their major challenges is handling high-concurrency workloads, especially under extreme conditions. When too many requests are sent simultaneously, LLMs often become unresponsive which leads to performance degradation and reduced reliability in real-world applications. To address this issue, this paper proposes a queue-based system that separates request handling from direct execution. By implementing a distributed queue, requests are processed in a structured and controlled manner, preventing system overload and ensuring stable performance. This approach …

Contextual Embedding-Based Clustering To Identify Topics For Healthcare Service Improvement, K M Sajjadul Islam, Ravi Teja Karri, Srujan Vegesna, Jiawei Wu, Praveen Madiraju

Computer Science Faculty Research and Publications

Understanding patient feedback is crucial for improving healthcare services, yet analyzing unlabeled short-text feedback presents challenges due to limited data and domainspecific nuances. Traditional supervised approaches require extensive labeled datasets, making unsupervised methods more practical for extracting insights. This study applies unsupervised techniques to analyze 439 survey responses from a healthcare system in Wisconsin, USA. A keyword-based filter was used to isolate complaint-related feedback using a domain-specific lexicon. To identify dominant themes, we evaluated traditional topic models such as Latent Dirichlet Allocation (LDA) and Gibbs Sampling Dirichlet Multinomial Mixture (GSDMM) - alongside BERTopic, a neural embedding-based clustering method. To improve …

Reliability Of An Extended Version Of The 3m™ Eargage Tool To Assess Earcanal Size And Assist Earplug Selection, Bastien Poissenot-Arrigoni, Laurence Martin, Alessia Negrini, Djamal Berbiche, Olivier Doutres, Franck Sgard

Études primaires

Objective: Evaluate the ability of an extended version of the 3 MTM Eargage to estimate the earcanal size and assess the likelihood that a particular earplug can fit an individual’s earcanal, ultimately serving as a tool for selecting earplugs in the field. Design: Earcanal morphology, assessed through earcanal earmolds scans, is compared to earcanal size assessed with the extended eargage (EE) via box plots and Pearson linear correlations coefficients. Relations between attenuation measured on participants (for 6 different earplugs) and their earcanal size assessed with the EE are established via comparison tests. Study sample: 121 participants exposed to occupational noise …

Physiotherapy Experiences Of Injured Immigrant Workers In Quebec: An Intersectional Perspective, Victoria Gómez, Debbie Ehrmann Fieldman, Daniel Côté, Dahlia Kairy, Marie Laberge, Amelia León, Maxi Miciak, Maud Morin, Sara Saunders, Tatiana Orozco, Anne Hudon

Études primaires

Purpose: Immigrant workers are more likely to suffer work-related injuries compared to native-bornCanadians. Their physical rehabilitation usually involves physiotherapy. This study sought to betterunderstand the experiences of injured immigrant workers receiving compensation and physiotherapytreatments.Materials and methods: We conducted a qualitative study using an interpretive descriptivemethodology. Semi-structured interviews were completed with 10 compensated immigrant workersabout the physiotherapy services they received. Transcripts were analyzed thematically and with anintersectional lens.Results: Two major themes were identified: 1) complex pathways to physiotherapy, and 2) key pillarsof physiotherapy experiences. The first theme demonstrates that a lack of familiarity with the healthand compensation systems, delayed access to …

Validation Of A Laboratory Spray Generation System And Its Use In A Comparative Study Of Hexamethylene Diisocyanate (Hdi) Evaluation Methods, Hugues Ahientio, Loïc Wingert, Sébastien Gagné, Livain Breau, Jacques Lesage, Simon Aubin

Études primaires

Isocyanates are well-known irritants and sensitizers, and measuring their occupational airborne exposure is challenging due to their high chemical reactivity and semi-volatile nature. This study builds on a previous publication by our team that focused on comparing evaluation methods for isocyanates. The current research aims at developing, validating, and applying a laboratory generation system designed to replicate real-world conditions for spraying clear coats in autobody shops using hexamethylene diisocyanate (HDI)-based products. The system involved a spray gun connected to two chambers in series, enabling sample collection and analysis. The system successfully generated HDI and isocyanurate concentrations ranging from 0.008 to …

Mechanical And Antimicrobial Properties Of Green And Photoactive Agtio2/Poly(3hydroxybutyrate) (Phb) Electrospun Membranes, Safa Ladhari, Nhu Nang Vu, Alireza Saidi, Amine Aymen Assadi, Phuong Nguyen-Tri

Études primaires

The rise of antibiotic-resistant microbes and concerns over non-biodegradable waste highlight the need for innovative materials with integrated functionalities that address these critical issues. In this study, we synthesized poly(3hydroxybutyrate) (PHB) electrospun nanofibers blended with gelatin (Ge) and loaded with photoactive AgTiO2 nanoparticles with improved mechanical and biological properties. Biological tests revealed excellent antibacterial activity of the prepared membrane, with efficiency exceeding 99% against Escherichia coli and 95% against Staphylococcus epidermidis after 90 and 60 min of exposure to low-power commercial LED lights, respectively. Filtration studies using a dead-end stainless-steel cell reveal that both bacteria are eliminated (>99% after …

Evolution Of Stressors For Healthcare Workers Over The Covid-19 Pandemic, F. Labrèche, Q. Durand-Moreau, A. Adisesh, J.-M. Galarneau, Shannon Ruzycki, Tanis Zadunayski, Nicola Cherry

Études primaires

Background:

Many studies have documented exposure to psychosocial factors in healthcare workers (HCWs) during the COVID-19 pandemic. Few have done it prospectively with open-ended questions.

Aims:

To describe the evolution of stress factors reported by HCWs during the pandemic.

Methods:

A prospective cohort of 4964 HCWs (physicians, nurses, healthcare aides, personal support workers), from four Canadian provinces, received four online questionnaires between the springs 2020 and 2022. Responses to an open-ended question on stressful events were coded into 25 stressors. Multilevel logistic regressions assessed trends in stressors, and the effect of gender, occupation, and age.

Results:

In 2020, 91% of …

Characterization Of Airborne Bacterial Diversity In Conventional Hen Houses, Enriched Colonies And Aviaries, And Link Between Possible Bioaerosol Sources, M.-W. St-Germain, M. Veillette, V. Létourneau, A. D. Larios Martínez, S. Godbout, M. Boulianne, C. Duchaine

Études primaires

Background

Canada’s transition toward alternative housing systems for laying hens may have an impact on bioaerosol content and concentrations in those environments. This project aimed to characterize the airborne bacterial diversity in six conventional hen houses, six enriched colonies and six aviaries. The bacterial diversity found in bioaerosols was also compared to the diversity found in feces or litter samples from each corresponding housing type to investigate similarities between possible bioaerosol sources and bioaerosols.

Results

Specific richness (S_obs) and CHAO1 indexes were higher in air samples from conventional hen houses and enriched colonies, compared to their corresponding fecal …

Measuring Toluene Diisocyanate Concentrations In Accordance With Acgih® Inhalable Fraction And Vapor (Ifv) Notation, Charles Larocque, Pierre-Luc Cloutier, Sébastien Gagné, Loïc Wingert, Sylvain Canesi, Jacques Lesage, Simon Aubin

Études primaires

Toluene diisocyanate (TDI) is an irritant (skin, eye and respiratory) and a sensitizer. This compound is used to manufacture polyurethane materials such as flexible foams. The use of isocyanates may lead to exposure by inhalation and/or skin contact and isocyanates are recognized as a cause of occupational asthma. The American Conference of Governmental Industrial Hygienists (ACGIH^®) recommends a threshold limit value (TLV) for TDI of 1 part per billion (ppb) (7 µg m-^³) with inhalable fraction and vapor (IFV) notation. This notation means that the inhalable fraction of particles and the vapor phase of TDI may …

Expériences Vécues Et Perceptions De Personnes Étudiantes Internationales Sur Les Mesures Et Les Services Offerts Par Les Universités Québécoises Pendant La Pandémie De Covid-19 = Experiences And Perceptions Of International Students Regarding Measures And Services Offered By Quebec Universities During The Covid-19 Pandemic, Farrah Bérubé, Jessica Dubé, Jorge Frozzini, Daniel Côté

Études primaires

Cet article fait état d’une partie des résultats d’une recherche menée auprès de personnes étudiantes internationales (PÉI) qui fréquentaient des universités québécoises pendant la pandémie de COVID-19. La recherche portait sur les usages sociaux des technologies de l’information et de la communication (TIC) et sur la qualité de vie des PÉI en période de confinement. Les résultats présentés et discutés dans cet article se rapportent plus spécifiquement aux expériences et perceptions des PÉI sur les mesures et les services offerts par les universités en contexte de confinement. Afin de répondre à cet objectif, des entretiens semi-dirigés, menés auprès de 40 …

Évolution Des Troubles Mentaux Liés Au Travail Au Québec Entre 2012 Et 2021, Jaunathan Bilodeau, Martin Lebeau, Marc-Antoine Busque, Alain Marchand

Études primaires

Introduction : Plusieurs pays ont connu une augmentation du nombre de troubles mentaux acceptés au cours des dernières années, mais les variations possibles de cette évolution dans la main-d’œuvre demeurent à explorer.

But de l’étude : Cette étude examine la distribution dans le temps des troubles mentaux acceptés selon la profession, le secteur industriel, le sexe et l’âge au Québec.

Résultats : Les taux d’incidence des troubles mentaux et leur évolution varient selon la profession et le secteur industriel. Alors que le taux est généralement plus élevé dans les professions mixtes et le secteur tertiaire, l’augmentation de ces taux s’observe …

Occupational Exposure To Combustion By-Products And Breast Cancer Risk In Postmenopausal Women, Kahlila Paul-Cole, France Labrèche, Mark S. Goldberg, Sydney Westra, Vikki Ho

Études primaires

Objective

To estimate the association between lifetime occupational exposure to select combustion by-products and postmenopausal breast cancer (BC) risk.

Materials and Methods

Data from a population-based case-control study among postmenopausal women residing in Montréal, Quebec were used. Cases included 661 women aged between 47 and 75 yr, diagnosed with incident malignant BC between 2008 and 2011. Controls comprised 587 women randomly selected from the Quebec Electoral List, frequency-matched to cases by 5-year age groups. Information on risk factors and lifetime occupational histories was collected by interview. Two industrial hygienists used job histories to assign exposure to 293 agents, including 6 …

The Incidence Of Postmenopausal Breast Cancer In Relation To Occupational Exposure To Textile Fibers And Dusts In Montreal, Canada, 2008-2011, Maymouna Myriam Ka, France Labrèche, Mark S. Goldberg, Vikki Ho

Études primaires

Objective To estimate the associations between occupational exposure to textile fibers/dusts, and incidence of postmenopausal invasive breast cancer.

Methods

A population-based case-control study conducted in Montreal (2008 − 2011) identified hospital cases (N = 695) and population controls (N = 608) from the electoral list. Occupational hygienists examined participants’ occupations and tasks, and attributed exposures to several textile fibers. For all tumors and according to biomolecular subtypes, odds ratios (OR) and 95% confidence intervals (95%CI) were estimated using logistic regression models with different exposure indices, adjusting for potential confounders.

Results

Ever exposure to cotton dust was associated with an increased …

Cardiac Monitoring With Textile Capacitive Electrodes In Driving Applications: Characterization Of Signal Quality And Rr Duraction Accuracy, James Elber Duverger, Geordi-Gabriel Renaud Dumoulin, Victor Bellemin, Patricia Forcier, Justine Decaens, Ghyslain Gagnon, Alireza Saidi

Études primaires

Capacitive ECG sensors in automobiles enable unobtrusive heart rate monitoring as an indicator of a driver’s alertness and health. This paper introduces a capacitive sensor with textile electrodes and provides insights into signal quality and RR duration accuracy. Electrodes of various shapes, sizes, and fabrics were integrated at various positions into the seat back of a driving simulator car seat. Seven subjects completed identical driving circuits with their cardiac signals being recorded simultaneously with textile electrodes and reference Ag-AgCl electrodes. Capacitive ECG signals with observable R peaks (after filtering) could be captured with almost all pairs of textile electrodes, independently …