424 Works

Motivating the Protection of Others

Erin Hester
The term “wicked problems” is used to describe a constellation of social issues that are deeply entangled (Rittel & Webber, 1973). Although these social messes affect everyone in society, some people suffer more than others (Ackoff, 1974). Nevertheless, tackling wicked problems begins with recognizing our shared responsibility to ease the misfortune of others (Rittel & Webber, 1973). As such, they provide an ideal context to investigate the persuasive effectiveness of messages that encourage the protection...

SIGNIFICANT LIFE EXPERIENCES OF KENTUCKY YOUTH CLIMATE ACTIVISTS

Jeri Howell
The purpose of this study is to better understand Kentucky youth climate activism. The research questions explore how youth define their climate activism in Kentucky, their Significant Life Experiences (SLE) that motivated them to commit to climate activism, and what challenges and sustains their involvement. This qualitative study utilizes a blended framework of social/environmental positionality and political ecology to analyze 7 semi-structured interviews with participants between the ages 18 to 24 years old who are...

Extraction of Deep Inelastic Cross Sections Using a 10.4 GeV Electron Beam and a Polarized Helium-3 Target

Murchhana Roy
Experiment E12-06-121 at Jefferson Lab aims to do a precision measurement of the neutron spin structure function g2 using inclusive inelastic scattering of electrons over a large kinematic range of x and Q2. The third moment of the linear combination of the spin structure functions g1 and g2, d2, is one of the cleanest higher twist observables and contains information on quark-gluon correlations. It is connected to the “color polarizability or “color Lorentz force” of...

EXAMINING SOCIAL MISSION IN KENTUCKY SOCIAL ENTERPRISES

Bo Milburn
Social Enterprises are business entities that incorporate social value creation into their business operations. This study aims to investigate, explore and share key insights gained through the lived experience of owners or managers of these organizations. The reputational method of sample selection was used to identify informed individuals who participated in interviews to share phenomenological knowledge by telling the stories of their organizations, describing how they manage the balance between profitability and sustainability, sharing observations...

DEMAND SYSTEM ANALYSIS OF BEER IN THE U.S. MARKET

Laxmi Adhikari
The onset of the COVID-19 pandemic has stimulated remarkable changes in consumer purchasing and consumption behavior of food and beverages. This inherently raises the question of what the demand for beer differentiated by brands in the U.S. during the pandemic is? To answer this question, we used the recent Nielsen scanner data and employed the Linear Approximated Almost Ideal Demand System (LA/AIDS) model to jointly estimate the demand for the five major brands: Budweiser, Coors,...

THE ROLE OF NITRIC OXIDE IN INTER- AND INTRA- CELLULAR SIGNALING IN PLANT DEFENSE

Fan Xia
Plants have evolved a sophisticated immune system to defend themselves against pathogens. This immune response can be triggered in response to pathogen-associated molecular patterns (PAMP) or specialized effectors that are recognized by the plant resistance (R) proteins. The latter, commonly referred to as effector-triggered immunity (ETI), is well known to induce broad-spectrum resistance throughout the plants. This phenomenon known as systemic acquired resistance (SAR) is regulated by several chemical signals including salicylic acid (SA), and...

Interdisciplinary Collaboration

Rose Campbell
In this study, a multi-component, rapid coaching intervention that included providing rationales, modeling, coaching during brief practice sessions, and performance-based feedback to train parents of children with communication delays to use naturalistic strategies during play. In addition, this study modeled successful interdisciplinary collaboration. A multiple baseline design across behaviors was used to evaluate the intervention and subsequent changes in the parent’s behavior. Results indicated that hat the rapid coaching model can be effective when it...

Tracks/traces

Piotr Wojcik
Lexington, Kentucky is a key node in the global thoroughbred horse industry. This archival research examines the transformation of its horseracing and housing geographies during the 1930s by comparing the redevelopment of an old urban racetrack into federal public housing with the simultaneous development of a new racing plant in the nearby countryside. It analyzes the social and economic relations underlying this shift in addition to how these relations were naturalized by the new landscapes...

THE BEST OF BOTH WORLDS

Kristy Zak
The purpose of this dissertation was to understand non-tenured and tenured teachers’, administrators’, and literacy support staff’s perceptions of the most imperative practices new teachers should know to teach reading in local elementary schools located in one regional state university’s service region. As well, this dissertation sought to determine the degree to which there was alignment between what is being taught in reading methods classes at one regional, state university with those practices. Questionnaire data...

Investigating Mechanisms of Injury and Intervention in a Novel In Vitro Model of Traumatic Brain Injury in Organotypic Hippocampal Slice Cultures

Julia Jagielo-Miller
Traumatic brain injuries (TBIs) impact millions of individuals each year and can pose long term consequences. Despite numerous attempts, no medication has been approved by the FDA to treat TBIs. The causes of these failed trials are multifaceted, but in part can be attributed to the complex nature of TBIs, as well as a lack of sufficient pre-clinical data. In vitro models of TBI are an important tool to help understand the cellular changes seen...

An Automated Framework to Debug System-Level Concurrency Failures

Tarannum Shaila Zaman
The ever-increasing parallelism in computer systems has made software more prone to concurrency failures, causing problems during both pre- and post-development. Debugging concurrent programs is difficult because of the non-deterministic behavior and the specific sequences of interleaving in the execution flow. Debugging is a technique where programmers reproduce the bug, identify the root cause, and then take necessary steps to remove the bug from the system. The failure information may come from the bug reports...

Context Classification of Roadways Using Nationally Available GIS Data

Laura Wright
A Context Classification System based on context attributes of the area surrounding a roadway provides detailed information about the environment of a roadway corridor, while enabling practitioners to cater roadway projects to the community they are within. This study sought to create a system that would automatically classify roadway segments into the correct context, using data sources that are available nationwide. The proposed approach was tested by classifying the roadways in Highway District 7 of...

DESCRIBING AND PREDICTING PREPROCEDURAL ANXIETY IN PATIENTS SCHEDULED FOR ADVANCED GASTROINTESTINAL ENDOSCOPY DURING THE COVID-19 PANDEMIC

Dawn Profit
Advanced gastrointestinal endoscopy includes a group of specialized procedures and interventions that are being performed more frequently with little attention given to a patient’s preprocedural anxiety issues. Preprocedural anxiety is an anticipated problem with any surgery or invasive procedure and if sustained or experienced excessively, is associated with negative clinical factors and complications. In the beginning of 2020, the United States was met with a global pandemic caused by the coronavirus SARS-CoV-2, termed COVID-19. There...

Investigating the Physical Stability of Amorphous Pharmaceutical Formulations

Travis Jarrells
Amorphous formulations, including amorphous solid dispersions (ASDs), consisting of the active pharmaceutical ingredient (API) intimately mixed in a polymeric matrix, are an attractive formulation approach to improve drug delivery, dissolution, and solubility. However, an amorphous API in an ASD is in a higher energy state compared to the crystalline drug and results in most ASDs being inherently unstable. The polymer helps to stabilize the amorphous drug against crystallization such that the resulting homogenous mixture maintains...

Increasing Initiations of Communication for Students with Moderate and Severe Disabilities Using a Prompt Hierarchy

Ryan Elizabeth Queenan
The purpose of this study was to increase initiations of communication for high school students with moderate and severe disabilities using a prompt hierarchy in the context of environmental arrangements. A multiple probe across participants design was used to evaluate the effectiveness of implementing a prompt hierarchy with an environmental arrangement. The results showed that when using a prompt hierarchy in the context of an environmental arrangement were effective in increasing initiations of communication for...

Longitudinal Dynamics Between Parenting and Adolescent Deviance

Dan Liu
The current dissertation, based on three separate and yet closely related studies, tested the longitudinal dynamic relationships of maternal and paternal parenting factors with adolescent deviance, the direct links as well as underlying mechanisms. Study 1, based on longitudinal data collected from 570 early adolescents, part of the Brno Longitudinal Study of Youth (BLSY), used latent growth modeling and tested the development of three parenting measures, including parental solicitation, knowledge, and peer approval, and deviance...

Structural Optimization of Space Transit Vehicle Concept, Hercules

James Rogers
Hercules is a vehicle concept developed by NASA Langley's Vehicle Analysis Branch to satisfy the need for sustainable transit between Earth, the moon, and Mars. Hercules features unprecedented abort capabilities and mission flexibility to aid in NASA's Mars campaign. By utilizing modern software to perform structural analysis and optimization for a large selection of stiffened panel concepts, beam concepts, and materials trends in the structural optimization emerge. These trends will be invaluable for the design...

DEVELOPMENT OF UNIVARIATE AND MULTIVARIATE FORECASTING MODELS FOR METHANE GAS EMISSIONS IN UNDERGROUND COAL MINES

Juan Diaz
Methane gas management continues to be a challenge concerning underground coal mine safety and productivity worldwide despite the extraordinary effort of the mining industry, governmental agencies, and academia to develop new technologies to monitor and control methane gas emissions more efficiently. The risk of hazardous methane gas concentrations in underground environments cannot be underestimated. Statistical data for the last 100 years indicate that around 80% of the accidents and 90% of the fatalities in the...

Modeling Human Control Behavior in Command-following Tasks

Sajad Koushkbaghi
Humans interact with a variety of complex dynamic systems on a daily basis. However, they are often the lesser understood component of human-in-the-loop (HITL) systems. In this dissertation, we present the results of two HITL experiments to investigate the control strategies that humans use when performing command-following tasks. The first experiment is designed to investigate the control strategies that humans use to interact with nonlinear dynamic systems. Two groups of human subjects interact with a...

“Write Something that Somebody can Use”: Openness, Porosity, and Opportunities for Others to do Their Own Things

Roderick Ferguson, Alessandra Del Brocco & Ivy F. Monroe

Translating Across Difference: Affect, Animal Studies, and Anthropology

Radhika Govindrajan, Qingfei Zhang & Morgan Keith Stewart

Whose Ethics?: Thinking Multispecies Relationships Through the Pandemic Classroom

Dierdra Reber, Erin Koch, Aylin Castro, Jed DeBruin, Kelly Ferguson & Jacob Saindon

Constellations of Strange Bodies: Engaging with the Concept of Mess and its Shifting, Swirling Conditions

Martin Manalansan IV, Jed DeBruin, Lee Mandelo & Sydney Mullins

Pitch-Based Carbon Fiber Derived from Coal Extract Liquids

Cierra Crowe
Limited coal coking operations and the use of coal-tar pitch as a binding agent in the production of metallurgical anodes has led to a limited availability of coal tar pitch for carbon fiber products. This has sparked interest in utilizing non-metallurgical coal-based liquids as an alternative to traditional coal tar from metcoke operations. This can be achieved by low severity solvent extraction, with heavy aromatic solvents, to produce coal liquids that act as precursor to...

TEACHING CHILDREN TO USE INTERACTION STRATEGIES WITH THEIR YOUNGER SIBLINGS THAT ARE MINIMALLY VERBAL

Abby Rucker
Children that are minimally verbal often lack same- or near-age peer interaction outside of the home environment. This study attempted to bridge that gap by training older siblings of minimally verbal children to use interaction strategies during play sessions. Through this, researchers were able to examine both the fidelity of use of the trained interaction strategies as well as their effect of the younger siblings’ communication skills.

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