Digital Commons Network^™

Accurate Knowledge Of Roadway Horizontal And Vertical Alignment Is Essential, Bekir Bartin, Mojibulrahman Jami, Kaan Ozbay

Kentucky Transportation Center Presentations

No abstract provided.

Three Essays On Environmental Risk And Policy, Samuel Owens

Theses and Dissertations--Public Policy and Administration

This dissertation comprises three essays that investigate different facets of environmental hazards and their implications for policy and governance. While each essay examines a different topic area, they are all linked by examining how entities respond to incentives at the intersection of environmental risk and public policy. Each chapter informs a distinct literature within environmental policy and utilizes different methodologies to examine largely unexplored research questions.

In the first essay, I examine how individuals respond to the low-visibility, long-term environmental risk presented by radon. I employ radon zone data from the Kentucky Geological Survey and home information from Zillow to …

Policy Brief, Zachary Owen

Libraries Award for Undergraduate Scholarship

The US grapples with a housing crisis, exacerbated in part by a shortage of conventional mortgage loans. Data from 2020 reveals a severe racial disparity, with 27.1% of Black mortgage applicants denied compared to only 13.6% of White mortgage applicants. These denial trends are highly correlated with homeownership rates. Current trends in homeownership by race mirror or exceed those present during the discriminatory practices of the 1960s. Lenders often cite low credit scores and high debt-to-income ratios as grounds for denial. Therefore, proposed solutions include mandating the inclusion of rental payment history in credit scores, offering free homebuying education, and …

Astrocyte Ca2+ In The Dorsal Striatum Suppresses Neuronal Activity To Oppose Cue-Induced Reinstatement Of Cocaine Seeking, Navid S. Tavakoli, Samantha G. Malone, Tanner L. Anderson, Ryson E. Neeley, Artin Asadipooya, Michael T. Bardo, Pavel I. Ortinski

Psychology Faculty Publications

Recent literature supports a prominent role for astrocytes in regulation of drug-seeking behaviors. The dorsal striatum, specifically, is known to play a role in reward processing with neuronal activity that can be influenced by astrocyte Ca2+. However, the manner in which Ca2+ in dorsal striatum astrocytes impacts neuronal signaling after exposure to self-administered cocaine remains unclear. We addressed this question following over-expression of the Ca2+ extrusion pump, hPMCA2w/b, in dorsal striatum astrocytes and the Ca2+ indicator, GCaMP6f, in dorsal striatum neurons of rats that were trained to self-administer cocaine. Following extinction of cocaine-seeking behavior, the rats over-expressing hMPCA2w/b showed a …

Southeastern Law Librarian Winter 2024, Seaall

Newsletters

No abstract provided.

Co-Authorship Maps To Support Leadership Selection, Robert Hc Chen

Research Analytics Summit 2024

VOSViewer co-authorship mapping is a powerful tool typically used for analyzing research collaboration. Users provide publication data and VOSViewer produces a map where authors are plotted on a 2-dimensional map based on how often they are in the author lists of the same publication.

In this presentation, I propose a series of tweaks to the input data that can leverage co-authorship maps to support leadership selection based on how often candidates co-author papers with their institutional peers and some of the attributes of these papers. I will suggest how best to interpret the resulting maps and address the major assumptions …

Project Final Report Watershed Center Of Excellence, Kentucky Water Resources Research Institute

KWRRI Research Reports

With the goal of providing a structured foundational background for watershed management to Kentucky’s watershed coordinators and other water quality professionals, the Kentucky Water Resources Research Institute developed the Kentucky Watershed Academy, a six-module series of core training content. The modules address the following subject areas:

• Module 1: The Clean Water Act & Related Water Quality Laws

• Module 2: Water Quality Basics

• Module 3: Dealing with Data

• Module 4: Land Use Impacts & Related Best Management Practices

• Module 5: Likely Partners

• Module 6: Effective Communications

As a result of this project, a total of …

Maximizing Mining Operations: Unlocking The Crucial Role Of Intelligent Fleet Management Systems In Surface Mining’S Value Chain, Arman Hazrathosseini, Ali Moradi Afrapoli

Earth and Environmental Sciences Faculty Publications

On the one side, the operational expenses of mining enterprises are showing an upward trend; and on the other side, conventional mining fleet management systems (FMSs) are falling short in addressing the high-dimensionality, stochasticity, and autonomy needed in increasingly complex operations. These major drivers for change have convinced researchers to search for alternatives including artificial-intelligence-enabled algorithms recommended by Mining 4.0. The present study endeavors to scrutinize this transition from a business management point of view. In other words, a literature review is carried out to gain insight into the evolutionary trajectory of mining FMSs and the need for intelligent algorithms. …

Generating Climate Resilience Or Intensifying Vulnerabilities? A Feminist Poltitical Ecology Analysis Of Climate Resilient Agriculutre Projects In Sri Lanka’S Dry Zone, Nethmi Sachithma Perera Bathige

Theses and Dissertations--Geography

Conserving water for irrigation of crops has become a concern in the dry zone of Sri Lanka due to changes in climate patterns. In response, the United Nations Development Program (UNDP) has developed climate-resilient water management projects designed to build climate-resilience and water management practices among farmers. One such program called ‘Wew Gam Pubuduwa’ disseminates climate smart home gardening techniques, where women farmers receive sprinkler and drip irrigation systems, seeds and fertilizers, as well as training on water management methods. This study draws on a feminist political ecology framework to analyze the experiences of women home gardeners who …

Digital (Re)Production: Spatial Mediations Through Augmented Reality Landscapes In ‘Pokemon Go’, Brigitte Pulminar Perkins

Theses and Dissertations--Geography

Since 2016, the mobile augmented reality game Pokémon GO has renewed interest within communities by mediating spatial engagement using in-game markers that must be engaged with throughout physical urban landscapes. This thesis identifies factors that influence the spatial distribution of digital markers used by this game to help inform analyses of urban gamification, urban spatial distribution, and cultural knowledge production processes. Drawing specifically on theories of urban spatialization and digital media studies, I highlight features of physical and digital legacies of redlining within Lexington, KY that are reproduced via Pokémon GO. I argue that the urban racialized landscape of Lexington …

State Governance And Less-Skilled Migrant Workers In South Korea, Weejun Park

Theses and Dissertations--Geography

This dissertation examines the migration governance of South Korea with a focus on the immigration of less-skilled migrant workers. While geographers and broader social scientists have explored this topic, previous studies have two main foci: 1) individual immigrants and their activities; and 2) migration policy development. Despite these studies’ contribution to the scholarship, there seems to be a relative lack of interest in the South Korean state as a potentially crucial actor in governing less-skilled migrant workers. To address this gap, this dissertation draws upon (political) geography, related social sciences, and interdisciplinary fields such as border studies, migration studies, and …

A Cotyledon-Based Virus-Induced Gene Silencing (Cotyledon-Vigs) Approach To Study Specialized Metabolism In Medicinal Plants, Yongliang Liu, Ruiqing Lyu, Joshua Singleton, Barunava Patra, Sitakanta Pattanaik, Ling Yuan

Plant and Soil Sciences Faculty Publications

Background Virus-induced gene silencing (VIGS) is widely used in plant functional genomics. However, the efficiency of VIGS in young plantlets varies across plant species. Additionally, VIGS is not optimized for many plant species, especially medicinal plants that produce valuable specialized metabolites.

Results We evaluated the efficacy of five-day-old, etiolated seedlings of Catharanthus roseus (periwinkle) for VIGS. The seedlings were vacuum-infiltrated with Agrobacterium tumefaciens GV3101 cells carrying the tobacco rattle virus (TRV) vectors. The protoporphyrin IX magnesium chelatase subunit H (ChlH) gene, a key gene in chlorophyll biosynthesis, was used as the target for VIGS, and we observed yellow cotyledons 6 …

Navigating The Crooked Road: A Case-Study Into The Appalachian Regional Commission’S Strategy To Promote Economic Development Through Cultural Tourism, Nicholas Relich

Gaines Fellow Senior Theses

Since 1965, the federal government’s Appalachian Regional Commission (ARC) has sought to improve Appalachia’s wellbeing by funding state and local economic development projects. One recent ARC strategy is investing in projects to develop the region’s tourism sector as a means of growth, particularly “cultural tourism,” which markets Appalachia’s cultural heritage to potential visitors. This paper seeks to evaluate the effectiveness of such ARC investments based on economic theory and by performing an empirical and qualitative case-study of one such series of projects: The Crooked Road, a music heritage trail located in Southwest Virginia. Officially organized in 2004 and receiving substantial …

Redefining Ed Utilization: A Rabies Post-Exposure Prophylaxis Perspective, David Bennington

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Rabies, though rare in the United States, remains a lethal viral disease with significant public health implications. Post-exposure prophylaxis (PEP) through timely administration of rabies vaccines and rabies immune globulin (RIG) is critical for preventing the progression of the virus following potential exposure. However, the current system of healthcare delivery in the United States has witnessed an alarming trend: the unnecessary utilization of emergency department (ED) visits for rabies PEP, including follow-up vaccinations. This paper aims to examine and address this issue through a review of the factors contributing to the inappropriate use of ED services for rabies treatment.

Through …

How Important Is Parental Involvement And Engagement In Preschool, Emilee M. Dixon

Theses and Dissertations--Early Childhood, Special Education, and Counselor Education

The purpose of this study was to evaluate preschool classrooms’ parental engagement throughout the school year. Specifically, the study aims to assess if parents felt they received information to support their child's development, if the school offered engagement opportunities, and if the parents believed that engagement impacted their child. Research studies have shown or indicated that parental engagement is a key component to a child’s success. This study highlights the importance of parental involvement and engagement for children in preschool. The study involves reviewing a survey to gain a better understanding of when, how, and why parental involvement and engagement …

Pixels Or People: A Comparison Of The Differenital Effects Of Animated And Human Video Models On Exercise Behaviors For Hgh School Students With Intellectual Disability, Jade Alexis Fulkerson

Theses and Dissertations--Early Childhood, Special Education, and Counselor Education

Individuals with intellectual disabilities, with or without autism spectrum disorder, often require structured programming to facilitate acquisition of skills. Video modeling, an evidence-based strategy, offers a promising avenue for skill instruction. While research has demonstrated the effectiveness of human-modeled video interventions, limited research has been conducted into the efficacy of animated models. Addressing this gap, the present study employed an alternating treatments design to compare the effectiveness of human and animated models in teaching exercise behaviors to high school students with intellectual disabilities, with or without autism spectrum disorder. Results revealed variability among participants: one individual exhibited superior performance with …

Director Follow-Up Of Early Childhood Educator Professional Development, Katherine Jordan

Theses and Dissertations--Early Childhood, Special Education, and Counselor Education

Research has shown follow-up to be an important component for professional development (PD) to result in teacher behavior change. However, PD rarely includes follow-up support. This pilot study used multiple methods to determine the feasibility of Head Start (HS) directors providing teachers PD follow-up support. Two aspects of feasibility were examined. Practical feasibility was based on whether the directors could master the procedure for providing PD follow-up support and whether they had time to provide PD follow-up support. Social validity feasibility was measured as the acceptability of the procedures and the likelihood of directors continuing to use the protocol prescribed …

The Effects Of A Stay-Play-Talk Intervention On Social Communicative Acts For Elementary Aged Children With And Without Disabilities, Mackenzie Loar

Theses and Dissertations--Early Childhood, Special Education, and Counselor Education

The purpose of this study was to examine the effectiveness of the Stay-Play-Talk (SPT) intervention for increasing the rate of peer interactions among elementary-aged students who display social deficits or delays in a free-time small group setting. Peermediated instruction (PMI) is used to teach typically developing peers’ ways to interact with and help learners with disabilities acquire or increase social skills by increasing social opportunities within natural environments. With PMI, peers are systematically taught ways of engaging learners with disabilities in social interactions (Neitzel, 2008). PMIs are designed to support target children without interrupting the natural interactions between peers. One …

Multi-Tiered Professional Development System To Increase Paraprofessional Use Of Behavior Specific Praise, Lauren Phillips

Theses and Dissertations--Early Childhood, Special Education, and Counselor Education

To further support learning in self-contained settings, it is crucial for both teachers and paraprofessionals to implement effective classroom and behavior management strategies. Behavior specific praise (BSP) is one strategy that has been taught to teachers and used in general education classrooms to increase positive student outcomes (Gage et al., 2017) In this study, we used a multi-tiered system for professional development to increase paraprofessionals’ rate of BSP in a self-contained special education setting during one-to-one instructional activities. The results of this study indicated that Tier 1 professional development was sufficient for the paraprofessionals, and it not only increased paraprofessionals’ …

Trauma And Parenting: Are There Unintentional Effects?, A'Tora Hill

Theses and Dissertations--Early Childhood, Special Education, and Counselor Education

The goal in conducting this study was to explore the effects of trauma across generations, if any were to be confirmed. This study, specifically, aimed to investigate whether parents reported having dealt with trauma and if their trauma had any impact on the way they parent their children. Research has shown that parents who have endured trauma take on different parenting styles and techniques than those who have not endured trauma. This study highlights the effects of trauma on those who encounter it as well as how it may transcend through generations through a survey. A key outcome of this …

The Effects Of Hierarchical Training On The Emergence Of Emotion-Related Metaphors In Autistic Children, Katherine Lynch

Theses and Dissertations--Early Childhood, Special Education, and Counselor Education

Recently, research on derived relational responding has increased in volume, along with the publication of assessments, curricula, and textbooks on this topic. The allure of engineering derived relations due to purported accelerated learning makes this topic interesting to researchers and practitioners. Recent reviews have examined types of verbal operants, and specific relational frames studied in this body of literature, but there is scarcity in terms of the instructional procedures and variations thereof, and there is little available to focus on single case design (SCD) evaluations of these procedures. Hierarchical training (HT) to produce derived relations between arbitrary stimuli has shown …

A Case Study In Prospective Program Evaluation, Sarai Rosemary Combs

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Evaluation is a helpful tool in public health to provide transparency about community interventions and programs. The following is a prospective evaluation of a case study, looking at a recently designed program by the Lexington-Fayette County Health Department, as a capstone project for the Health Management and Policy concentration of the Masters in Public Health program of the College of Public Health. The health department developed a series of online training modules to increase knowledge of Methicillin-resistant staphylococcus aureus (MRSA) and other similar organism outbreaks and how to respond to these outbreaks. The program targets were Fayette County Public School …

Characteristics Of Congenital Syphilis Cases In Kentucky 2019-2023, Ines Roy

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Abstract:

Background: The incidence of congenital syphilis (CS) has increased both in the United States (US) and globally and remains a public health concern. In Kentucky alone, there has been a significant increase in CS cases, from 9 cases in 2019 to 27 cases in 2023. CS is a preventable disease, but testing and immediate treatment are critical to prevent its spread. We have limited knowledge regarding Kentucky’s characteristics and behavioral factors that may be associated with this rise. The goal of this study is to identify characteristics and potential risk factors that contribute to the rise of CS in …

The Distribution Of Cp-Cre Cases From 2013-2020 In The Commonwealth Of Kentucky, Hannah Hiscox

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Multidrug-resistant organisms (MDROs), particularly Carbapenem-Resistant Enterobacterales (CRE), pose a significant threat to public health due to their resistance to multiple antibiotics, including carbapenems. CRE infections, especially those producing carbapenemases (CP-CRE), are associated with high morbidity and mortality rates, making them a growing concern in healthcare settings. Despite the prevalence of CRE infections in the United States, limited data exist on the incidence and distribution of CP-CRE infections in specific regions, such as the Appalachian counties of Kentucky.

This study aimed to investigate the cumulative incidence and distribution of CP-CRE cases in Appalachian and non-Appalachian counties of Kentucky, as well as …

A Case Study In Program Evaluation, Iantha Wright

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

The framework for program evaluation is a systematic way of improving and accounting for public health actions by providing practical, feasible, ethical, and accurate information. As a practical, non-prescriptive tool, it guides public health professionals through the essential steps in program evaluation. The framework uses the six steps to understand how to improve and conduct assessments effectively. Additionally, it emphasizes integrating stakeholders and using ongoing evaluation strategies to plan effective interventions, improve existing programs, and demonstrate the efficient use of resources.

Demographic And Behavioral Characteristics Of People Who Help Others Inject Drugs: A Study Of People Who Inject Drugs In Appalachia Kentucky, Ryli Hockensmith

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Aim: This study aims to understand the demographic and behavioral characteristics of people who inject drugs (PWID) who assist others with injection, hereafter “injection assistors,” and assess the characteristics of injection assistors compared to PWID who do not assist others with injection in Appalachian Kentucky.

Methods: A cross sectional secondary data analysis of data collected from 433 PWID enrolled in the ongoing Kentucky Outreach Service (KyOSK) was performed. Logistic regression analyses were performed to compare injection assistors to those who do not assist others on demographic, behavioral, service usage, and harm reduction characteristics.

Results: In total, 128 (29%) PWID reported …

Mail-Based Or Home Delivery Services: Preferences Among People Who Inject Drugs In Appalachian Kentucky, Su Su Zin

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Aim: To explore acceptability of delivery-based syringe services program (SSP) among people who inject drug (PWID) in Eastern Kentucky and compare those who wanted to participate in delivery-based SSP to those who did not.

Methods: This was a cross-sectional analysis of data from PWID who injected drugs to get high in the past 30 days (n=246) collected during the baseline assessment administered to the Gateway2Health cohort. Chi-square tests, t-tests, univariate and multivariable logistic regressions were calculated between independent variables and the outcome variable (likelihood of participating in a delivery-based SSP).

Results: 52.9% of PWID reported being likely to participate in …

Human Papilloma Virus Type 16 Seroprevalence Among Men Living With Hiv, Ashley Duff

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Objectives: Individuals living with HIV are at a higher risk for developing human papillomavirus-driven oropharyngeal cancer (HPV-OPC). There are no methods for early detection; however, HPV16 E6 antibodies have been identified as a promising early marker. The objective of this study was to evaluate seroprevalence and predictors of HPV16 E6 seropositivity among men living with HIV.

Methods:2,334 men aged 40+ living with HIV with blood specimens banked within the Tennessee Center for AIDS Research (TN-CFAR) biorepository were evaluated using HPV multiplex serology. Seroprevalence of HPV16 antibodies was calculated for all HPV16 proteins analyzed (L1, E1, E2, E4, E6, E7). …

A Case Study In Program Evaluation, Sierra L. Williams

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

The Lexington-Fayette County Health Department (LFCHD) developed an education program targeted toward infectious disease outbreaks. The program ensures timely reporting and action during an infectious disease outbreak within the Fayette County Public Schools (FCPS) system. I have been tasked with evaluating the program and its implementation of training modules through pre and post-surveys to determine if the program is significantly increasing the overall knowledge of program participants and make recommendations for how program aspects can be improved.

Program Evaluation Case Study, Grace Mullikin

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Program evaluation case study utilizing Center for Disease Control and Prevention's Case Evaluation Framework.