755 Works

Biomimetic Devices to Drive a Thermodynamically Uphill Reaction Using Light and to Degrade Industrial Waste Stream Components

Madison JoAnne Sloan
Given the amount of industrial waste produced each year, as well as the accruing amount of greenhouse gases in our atmosphere produced by the burning of fossil fuels, it is imperative that humanity develop environmentally-sustainable sources of energy and methods of remediation. Nature achieves both of these by use of enzymes as catalysts, inspiring interest in designing biomimetic systems capable of harnessing clean energy and remediating industrial waste. This study examined the ability of enzymes...

Are You Telling Me that I'm Politically Correct?

Gary Weissman

Kentucky Traffic Collision Facts 2015

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KENTUCKY’S TRAFFIC COLLISION FACTS report for 2015 is based on collision reports submitted to the Kentucky State Police Records Branch. As required by Kentucky Revised Statutes 189.635, “every law enforcement agency whose officers investigate a vehicle accident of which a report must be made...shall file a report of the accident...within ten days after investigation of the accident upon forms supplied by the bureau.” The stated purpose of this requirement is to utilize data on traffic...

Service Before Self

Austin Garrett Griffiths
Child welfare workers respond to human tragedy and the job stresses associated with their positions that may result in their own trauma, secondary traumatic stress, compassion fatigue, emotional exhaustion, and burnout. Workers continue to leave their positions at alarming rates, influencing service quality and the ability to meet the needs of vulnerable populations. Decades of research have attempted to solve this national crisis by identifying salient factors found to influence the child welfare worker's experience...

A Stubborn Courage

William Farley
In most ways, The Mountain Eagle is an ordinary community oriented weekly newspaper, and indeed, a close examination of the paper will reveal that it focuses mostly on community news in Letcher County Kentucky, a small county in the mountains of eastern Kentucky. It carries holiday recipes, neighborhood news, and coverage of local government, school boards and sporting events. But a closer examination of the paper and its history reveals a different kind of community...

Arsenic Removal with a Dithiol Ligand Supported on Magnetic Nanoparticles

John Hamilton, II Walrod
Exposure to arsenic (As) in water, the ubiquitous toxin that poses adverse health risks to tens of millions, is the result of both anthropogenic and geochemical mobilization. Despite recent publicity and an increased public awareness, the dangers associated with arsenic exposure rank among the top priorities of public health agencies globally. Existing sequestration applications mainly include reductions and adsorption with zero-valent metals and their oxides. The performance of adsorption media is known to preferentially favor...

Effects of Temperature, Orientation, Load Level and Indenter Shape on the Indentation Response of NiTi-Based Shape Memory Alloys

Peizhen Li
Owing the capability of recovering large deformations through reversible phase transformation, shape memory alloys (SMAs) are well-known for their unique behaviors such as shape memory effect (SME) and superelasticity (SE), which can also be characterized by instrumented indentation techniques. Nickel titanium (NiTi) SMAs have been extensively used for nano/micro-indentation studies and widely applied to biomedical and other elaborate medical devices. In this study, indentation responses of NiTi, NiTiHf, NiTiHfPd and NiTiHfCu alloys were investigated using...

Genetic Perspectives on Biodiversity in Rocky Mountain Alpine Streams

Scott Hotaling
In alpine regions worldwide, climate change is dramatically altering ecosystems, affecting biodiversity across habitats and taxonomic scales. For streams, the associated recession of mountain glaciers and snowfields, paired with altered precipitation regimes, are driving shifts in hydrology, species distributions, and basal resources – often threatening the very existence of some habitats and biota. Globally, alpine streams harbor particularly substantial species and genetic diversity due to significant habitat insularity and environmental heterogeneity: however, anthropogenic warming threatens...

Dismantling the Five Factor Form

Stephanie L. Rojas
The purpose of this dissertation was to provide a further validation of the Five Factor Form (FFF; Rojas & Widiger, 2014). The FFF is a brief (one page) rating form that assesses for adaptive and maladaptive variants of both poles for each of six facets for the five domains of the five-factor model. Two prior validation studies of the FFF have been completed using the items as they are scored within the FFF (Rojas &...

Synchrony of the Sublime

Lisa M. Clark
This monograph provides an in-depth examination of the background, musical, and performance issues related to Duke Ellington’s wordless melodies, as well as epigrammatic biographies of Ellington and three female vocalists whose voices he employed as instruments: Adelaide Hall, Kay Davis, and Alice Babs. As early as the twenties, Ellington innovatively used the voice as a wordless instrumental color—an idea he extended into both his secular and sacred works. His iconoclastic instrumentalization of the soprano voice...

Development of Diverse Size and Shape RNA Nanoparticles and Investigation of their Physicochemical Properties for Optimized Drug Delivery

Daniel L. Jasinski
RNA nanotechnology is an emerging field that holds great promise for advancing drug delivery and materials science. Recently, RNA nanoparticles have seen increased use as an in vivo delivery system. RNA was once thought to have little potential for in vivo use due to biological and thermodynamic stability issues. However, these issues have been solved by: (1) Finding of a thermodynamically stable three-way junction (3WJ) motif; (2) Chemical modifications to RNA confer enzymatic stability in...

Women of the Apocalypse

Bianca L. Spriggs
“Women of the Apocalypse: Feminist Afrospeculative Writers,” seeks to address the problematic ‘Exodus narrative,’ a convention that has helped shape Black American liberation politics dating back to the writings of Phyllis Wheatley. Novels by Zora Neale Hurston, Octavia Butler, and Alice Walker undermine and complicate this narrative by challenging the trope of a single charismatic male leader who leads an entire race to a utopic promised land. For these writers, the Exodus narrative is unsustainable...

Mammogram and Tomosynthesis Classification Using Convolutional Neural Networks

Xiaofei Zhang
Mammography is the most widely used method of screening for breast cancer. Traditional mammography produces two-dimensional X-ray images, while advanced tomosynthesis mammography produces reconstructed three-dimensional images. Due to high variability in tumor size and shape, and the low signal-to-noise ratio inherent to mammography, manual classification yields a significant number of false positives, thereby contributing to an unnecessarily large number of biopsies performed to reduce the risk of misdiagnosis. Achieving high diagnostic accuracy requires expertise acquired...

Synthesis and Characterization of Poly(simvastatin) - Incorporated Copolymers and Blends for Bone Regeneration

Theodora Asafo-Adjei
Common biodegradable polyesters such as poly(lactic acid) (PLA), poly(lactic-co-glycolic acid) (PLGA) and poly(ε-caprolactone) (PCL) are used as drug delivery vehicles for tissue regenerative applications. However, they are typically bioinert, with drug loading limitations. Polymerizing the active agent or precursor into its respective biodegradable polymer would control drug loading via molar ratios of drug to initiator used for synthesis. Simvastatin was chosen due to its favorable anti-inflammatory, angiogenic, and osteogenic properties. In addition, its lactone ring...

The Fall of the Tenor with the Rise of the Larynx

Gregory Turay
The range and use of the tenor voice in classical music has long been established since the late 19th century. It is widely accepted among pedagogues that the range is C3-C5 (with obvious exceptions depending on the fach). However, with the advent and development of the American Musical as a genre since the early 20th century, the ‘tenor’ has taken on an entirely new direction and range altogether. Several well-known sources have stated that the...

Quantitative Analysis of the Impact of Craft Labor Availability on Construction Project Performance

Hossein Karimi
A shortage of skilled craft labor in the North American construction industry has been an unfortunate cyclic trend since the late 1980s. This shortage has been reported and discussed frequently by numerous past studies in the context of construction industry. The 2008 U.S. recession was at least one period when the craft shortage temporarily improved, as witnessed by spikes in construction unemployment rates above 20% due to the work slowdowns. However, the current economic recovery...

Pneumococcal Conjugate Vaccine 13 Coverage in Children, High-Risk Adults 19-64 Years of Age, and Adults Over 65 Years of Age in a Commercially Insured U.S. Population

Joseph C. Vanghelof
This thesis aimed to elucidate the demographic characteristics associated with elevated or reduced rates of pneumococcal conjugate 13 (PCV13) vaccination. A retrospective cohort study was performed using the Truven Health MarketScan® Database. Three cohorts were created corresponding to populations for which the CDC recommends PCV13 vaccination. Cohort 1: children < 36 months of age. Cohort 2: adults 19-64 years of age with high infection risk. Cohort 3: adults > 65 years of age. Odds of...

The Personal and Social Context of Justinianic Religious Policy Prior to the Three Chapters Controversy

Joshua McKay Powell
The emperor Justinian's religious policy has sometimes been characterized as haphazard or incoherent. This dissertation examines religious policy in the Roman Empire from the accession of the emperor Justin to the inception of the Three Chapters controversy in the mid 540's AD. It considers the resolution of the Acacian Schism, Justinian's apparent ambivalence with regard to the Theopaschite formula, the attempt to court the anti-Chalcedonians in Constantinople in the period leading up to the Council...

No Such State as Palestine

Osama A. Abdl-Haleem
There is no such state as Palestine. But nearly 70 years after the termination of the British mandate for Palestine and the creation of the state of Israel, Palestine remains a home for the Palestinian. It is an identity not dependent on the existence of a Palestinian state, nor arrested by the presence of an Israeli one. Palestinians have a home relationship with Palestine, where home is a sense of belonging that comes from within,...

Gender and Networking

Meredith L. Woehler
While organizations have significantly reduced the overt and intentional forms of sex discrimination that impeded women’s careers in the past, a great deal of research suggests women continue to face informal barriers in the workplace. One such arena in which women tend to be disadvantaged is in their workplace networks. In many ways, men and women have similar networks, yet women are less likely than their male counterparts to have personal relationships with high status...

Internalizing and Externalizing Dysfunction

Leila Guller
Separate externalizing and internalizing pathways to problem drinking have been described. However, internalizing and externalizing are substantially correlated, thus, there is good reason to believe that these two forms of dysfunction behaviors do not operate independently. We tested an integrative developmental model of transactions among internalizing symptomatology, externalizing personality, and psychosocial learning in the prediction of both drinking problems and future internalizing symptoms. To do so, we studied a large sample (n = 1910, 49.9%...

Improvements in Inverter Modeling and Control

Xiao Liu
In this dissertation, the generalized averaging method models for inverters, reactive power control methods for photovoltaic inverters, and a noise immunity improvement for hybrid position observers for brushless dc motor drives are studied. Models of inverters and other converters based on averaging have been widely used in numerous simulation applications. Generalized averaging can be applied to model both average and switching behavior of converters while retaining the faster run times associated with average-value models. Herein,...

The Usefulness of Climate Change Risk Disclosure

Chong Wang
On February 8, 2010, the SEC issued an interpretive guidance, SEC FR-82, (guidance hereafter) and required public firms to disclose climate change risk in their 10-Ks. However, this guidance has been controversial. Using firm-year observations from the Russell 3000 Index, this paper shows the following findings regarding the usefulness of climate change risk disclosure. First, a review of the legislative process leading to the 2010 guidance suggests that institutional investors and Democratic politicians play a...

In-Service Evaluation of High Tension Cable Barrier Systems

Brian K. Howell, Kenneth R. Agent, Jeff Jasper & William Nicholas Staats
The Kentucky Transportation Cabinet has installed hundreds of miles of high-tension cable median barrier (CMB) as a safety innovation. The usage of CMB aids in the prevention of crossover crashes, where a vehicle departs the roadway on the left shoulder, crosses the median, and enters the opposing lane(s) of traffic. Of the three CMB vendor products, KYTC has observed inconsistent performance; specifically, tension loss in the cables after a single vehicle impact. If a second...

Why Black Lives (Must) Matter at UK

Nicole Martin
As a university committed to creating inclusive learning environments, we must remember that our pedagogical practices and philosophies are not crafted in insolation from our social, political, and cultural environments. The psychic and emotional injury spurred by the events of the summer of 2016 will continue to reverberate across campus as we move into the fall semester. When we boldly address the lingering effects of trauma through our pedagogical practices, we demonstrate how the campus...

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  • 2017
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