1,748 Works

Improving Kentucky's Winter Wheat and Double Crop Soybean Rotation

Katherine Rod
The winter wheat double crop soybean rotation is an economically viable rotation for Kentucky farmers. Recent decreases in commodity prices has warranted the need to evaluate intensive management practices that can increase yields and profitability in this crop rotation. There were three goals of this dissertation: 1.) identify management practices that would decrease deoxynivalenol (DON) in harvested wheat grain and increase wheat heading and anthesis uniformity, 2.) evaluate double crop soybean planting timing and identify...

GLYPHOSATE PLUS DICAMBA SPRAY SOLUTION DEPOSITION, COVERAGE, AND EFFICACY AS INFLUENCED BY SPRAY NOZZLE DESIGN AND WEED DENSITY

Dicamba injury to sensitive soybean and other broadleaf crops due to drift is a major issue and label restrictions have been created to mitigate dicamba drift. One restriction is the mandated use of low drift nozzles to spray dicamba; these nozzles produce larger droplets and minimize the production of driftable fines. Experiments were conducted to evaluate herbicide coverage, deposition, and efficacy. Three spray nozzle designs and different weed densities were the main factors in the...

INVESTIGATION INTO MINE PILLAR DESIGN AND GLOBAL STABILITY USING THE GROUND REACTION CURVE CONCEPT

Ravi Chandan Ray
Pillars form an important support structure in any underground mine. A bulk of the overburden load is borne by the mine pillars. Thus, the strength of pillars has been a subject of detailed research over more than 6 decades. This work has led to the development of largely empirical pillar design formulations that have reduced the risk of pillar failures and mine collapse. Current research, however, has drawn attention to the fact that some of...

THE EFFECTS OF THREE SERVICE DELIVERY MODELS ON VOCABULARY LEARNING BY SECOND-GRADE CHILDREN

Laura Glastetter-Stone
Speech-Language Pathologists (SLPs) provide services to children in schools across the United States primarily in a direct small group service delivery model outside of the regular education classroom. To date little research exists to indicate that direct pull-out service delivery is an effective model in elementary schools for students requiring speech and language therapy. One area that has been studied is the effectiveness of vocabulary intervention among service delivery models. Preliminary findings suggest that students...

LASER ABLATION IN LIQUID FOR THE CONTROLLED PRODUCTION OF PHOTOLUMINESCENT GRAPHENE QUANTUM DOTS AND UPCONVERTING NANOPARTICLES

Rosemary Calabro
Photoluminescent­ (PL) nanomaterials play an important role in areas including displays, sensing, solar, photocatalysis, and bio applications. Traditional methods to prepare PL materials suffer many drawbacks such as harsh chemical precursors, complicated synthetic steps, and production of many byproducts. Laser ablation in liquid (LAL) has emerged as a promising alternative to prepare materials that is single-step, fast, uses fewer precursors, produces fewer side products, and has simple purification steps. During LAL, a solid target is...

The Vespers Psalms of Baldassare Galuppi

Scot Buzza
Although Baldassare Galuppi was arguably the best known and most successful Italian composer of the eighteenth century, his name, his history, and his works have been relinquished to the periphery of the historiographical narrative. While Galuppi's masses, operas, and solo motets have been examined, his vespers psalms have been neglected by previous musicologists; most of the existing studies have been superficial, with little consideration of important questions such as formal approach, stylistic development, compositional idiosyncrasies,...

Judicial Elections, Public Opinion, and their Impact on State Criminal Justice Policy

Travis Taylor
This dissertation explores whether and how the re-election prospects faced by trial court judges in many American states influence criminal justice policy, specifically, state levels of incarceration, as well as the disparity in rates of incarceration for Whites and Blacks. Do states where trial court judges must worry about facing reelection tend to encourage judicial behavior that results in higher incarceration rates? And are levels of incarceration and racial disparities in the states influenced by...

PREDICTING PATTERNS OF GENE FAMILY EVOLUTION IN TAXA WITH SIMILAR ECOLOGICAL NICHES

Kim Vertacnik
To fully understand the genetic basis of adaptation, we need to know its predictability—the extent to which specific selective pressures and contexts can yield corresponding genetic changes. In particular, the repeated colonization of similar, specialized environments by different taxa is ideal for assessing the frequency of reoccurring changes in the same genes or functions. But compared to a growing body of literature on the convergent evolution of individual genes, far less is known about the...

BRIDGING THE GAP

Karen S. Heavin
The contraction of the blue-collar economy is slowly rendering the high school diploma obsolete as an entry-level requirement for middle class employability. Over the last 40 years, jobs requiring some sort of postsecondary education or post-high school credential increased from 28% to 62%, while lower-skilled jobs, traditionally filled by high school graduates or those without a high school diploma, decreased from 72% to 38%. As automation slowly replaces the blue-collar workforce, it is critical that...

HEART TISSUE RECONSTRUCTION BY LIGHT-CONTROLLED CELL ADHESION, PATTERNING AND ALIGNMENT ON DECELLULARIZED SCAFFOLDS

Cong Li
There is an urgent demand for engineered tissues and organs because of extremely limited donor tissues available for transplant. The challenge of tissue rejection has motivated many researchers to try to remove all of the cells from a heart and then add back in patient matched cells. These recellularized hearts are a promising avenue towards a functional bioartifical heart that is less likely to be rejected. Decellularized extracellular matrix (ECM) scaffolds generated from animal hearts...

Vox et Silentium Dei

Tyler Kibbey
Contemporary research in the study of language and cognition frequently characterizes religious metaphors as either monoliths of experience or stable synchronic structures, if not both. In addition, by virtue of how the foundational theory of this paper, Conceptual Metaphor Theory, has been situated in the literature, pre-modern theist writing on figurative language has been largely ignored. This has resulted in a general application of Conceptual Metaphor Theory to religious language which characterizes religious experience as...

Reliability Assessment and Optimization of Water Distribution Systems Explicitly Considering Isolation Valve Locations

Erika Hernandez Hernandez
Water distribution systems have changed the landscape of communities through two services: 1) providing water supply for domestic and industrial use, and 2) providing water required to fight fires. However, a substantial portion of the water infrastructure in the country, as many of other public assets built over 50 years ago, are now reaching the end of their useful life; which combined with rapid growth and changes in demographics have placed water distribution pipe networks...

Flame Stabilization of a Premixed Jet in Vitiated Coflow

Tyler Owens
Premixed staged combustion in gas turbine engines can reduce emissions by lowering peak flame temperatures but can also lead to different stability characteristics when compared to traditional combustors. High pressure ratio and subsequently high temperatures can lead to conditions suitable for both autoignition and premixed flame propagation in an environment where spatial fuel/air variations are present. An experimental facility which issues a premixed jet into a coflowing vitiated mixture was studied to examine the stability...

Involvement of the Sigma-1 Receptor in Methamphetamine-Mediated Changes to Astrocyte Structure and Function

Richik Neogi
Methamphetamine is a highly addictive psychostimulant drug. There are currently no FDA-approved pharmacological treatments for methamphetamine addiction. Pharmacologically, (+)-methamphetamine is a dopamine releasing agent and dopamine transporter substrate that redistributes dopamine from intracellular vesicles via the vesicular monoamine transporter 2 (VMAT2) and reverses the direction of dopamine transport in the dopamine transporter. Methamphetamine, cocaine, and other drugs of abuse are also sigma-1 receptor ligands, and previous studies have demonstrated the role of the sigma-1 receptor...

EL BILDUNGSROMAN FEMENINO MExICANO

Yorki Encalada Egúsquiza
The late 20th and early 21st centuries have not only favored a steady growth in Chicana literary production but have also revealed an alternative identity of the Mexican American border woman, the meXicana. Rosa Linda Fregoso, in MeXicana Encounters (2003), coins and defines this term as “the interface between Mexicana and Chicana,” and employs it to examine the experiences and representations of Mexicanas and Chicanas without eliminating the differences between them. This study borrows this...

MICROALGAE AND ZINC SOURCE SUPPLEMENTATION OF BROILER BREEDER DIETS AFFECTS BROILER BREEDER SKELETAL DEVELOPMENT AND REPRODUCTION WITH TRANSGENERATIONAL IMPACTS ON OFFSPRING PERFORMANCE AND SKELETAL CHARACTERISTICS

Marquisha A. Paul
Leg problems and disorders are of major concern for the poultry industry and animal welfare. Previous studies suggest that it may be possible to improve skeletal characteristics through nutrition. Omega-3 fatty acids, including Docosahexaenoic acid (DHA), are essential nutrients and are known to play an important role in bone tissue development. FORPLUS™ (Alltech, Inc.) is an unextracted, whole-cell microalgae (Aurantiochytrium limacinum CCAP 4087/2) that contains 64% fat and 16% DHA. Zinc (Zn) is a trace...

THE ROLE OF NEURAL PRECURSOR CELL EXPRESSED DEVELOPMENTALLY DOWN-REGULATED PROTEIN 9 IN ENHANCED AGGRESSIVENESS OF HEXAVALENT CHROMIUM TRANSFORMED BRONCHIAL EPITHELIAL CELLS

Peter Van Wie
Hexavalent chromium (Cr(VI)) is classified as a confirmed human carcinogen by the International Agency for Research and Cancer (IARC) and by the U.S. Environmental Protection Agency (EPA). Chronic exposure to (Cr(VI)) causes malignant cell transformation in human bronchial epithelial BEAS-2B cells. These Cr(VI)-transformed cells exhibit a highly aggressive phenotype including increased migration, invasion, and angiogenesis. The Cas family protein neuronal precursor developmentally down regulated protein 9 (NEDD9/Cas-L/HEF1) was dramatically overexpressed in Cr(VI)-transformed cells compared to...

GAY MEN AND SATISFACTION WITH HEALTH CARE INTERACTIONS

Michael Huggins
The purpose of this research was to determine relationships among depression, anxiety, self-rated physical and mental health, self-advocacy, internalized homophobia, and quality of patient-provider communication to satisfaction with health care interactions. These were measured while controlling for select demographic variables: age; ethnicity; urban or rural domicile; relationship status; household income; highest educational attainment; health insurance; disclosure to health care provider as a gay man; reason for last healthcare visit; and, general health self-rating. The specific...

Mobile Technology and Classroom Relationships

Joe Martin
This dissertation examines the relational implications of the presence of mobile technology within the basic communication course. To guide the research and interpret the results Mottet, Frymier, and Beebe’s (2006) rhetorical and relational goals theory is utilized. To investigate this phenomenon a survey design was employed, and participants were asked to respond to open-ended, closed-ended, and descriptive questions. Results of this study shed light upon how and when university students use technology, as well as...

DEVELOPMENTAL CHANGES IN THE PIG FROM BIRTH TO 42 DAYS POST-WEANING (1.5 – 25 KILOGRAMS BODYWEIGHT)

Sarah Elefson
This study evaluated the changes in body composition, glycogen tissue reserves, visceral organ growth, and small intestine morphology in the young pig. A total of 96 crossbred pigs were euthanized at birth (pre-suckle), days 1, 2, 3, 5, 7, 14 postpartum, weaning at day 21, and days 1, 2, 3, 5, 7, 14, 28, and 42 post-weaning. Body composition of the pig had increasing dry matter and fat, decreasing ash, calcium and phosphorus, and relatively...

EFFECTS OF CURCUMIN AND FENUGREEK SOLUBLE FIBER SUPPLEMENTS ON SUBMAXIMAL AND MAXIMAL AEROBIC PERFORMANCE INDICES IN UNTRAINED COLLEGE-AGED SUBJECTS

Jensen Goh
Submaximal exercise performance is, in part, limited by the accumulation of metabolic byproducts and energy system capacities. Curcumin and the combination of curcumin and fenugreek soluble fiber (CurQfen®) have been shown to increase endogenous antioxidants and metabolic byproduct clearance as well as reduce inflammation and lipid peroxidation, and therefore, may enhance submaximal aerobic thresholds. In addition, there is evidence that the galactomannan component of fenugreek, used to enhance bioavailability of curcumin, may also have potential...

THE INTERACTIVE EFFECT OF A TEXT MESSAGE INTERVENTION AND CONNECTIVITY AMONG RURAL ADOLESCENTS

Kara Coldiron
Social cohesion among peers profoundly influences decision making during adolescence. Despite this, the current research is very limited concerning the association of social cohesion and intimacy among rural adolescent peers with dietary intake and weight outcomes. This is problematic because social cohesion could be an unknown contributing factor in obesity among rural adolescents. The purpose of this study was to investigate how social cohesion and intimacy among rural adolescents in Kentucky and North Carolina affects...

2016 Maintenance Customer Survey

R. Clark Graves & David L. Allen
The Kentucky Transportation Center, with the assistance of the University of Kentucky’s Survey Research Center, administered a telephone survey to 1,221 licensed drivers throughout the state to gauge their opinion of the Kentucky Transportation Cabinet’s (KYTC) maintenance activities. Survey respondents were distributed throughout KYTC’s 12 highway districts. The survey focused on five areas of highway maintenance: roadside features, pavement surfaces, shoulders, drainage and signs/markings. Respondents indicated they were most satisfied with the current maintenance of...

The Role of CD8 T Cell Immunodominance and Regulatory T Cells in Neonatal Immunity to Influenza Virus

Luke Heil
Neonates are more susceptible to influenza virus infection than adults, resulting in increased morbidity and mortality as well as delayed clearance of the virus. Efforts to improve influenza infection outcomes in neonates typically center on prevention, although current vaccines fall short of complete protection and can only be administered in humans after 6 months of life. We propose that as the neonatal immune system responds differently than the adult immune system, interventions that are efficacious...

Uncertain Inheritance

Anna Bedsole
Thus, Uncertain Inheritance traces the heiress in Anglo-Irish Big House novels situated at key times of change for the Irish Ascendancy. The Gothic triad of orphaned heiress, dead mother, and sinister uncle does not belong exclusively to the realm of Irish Gothic authors, but rather this triad is used for different discursive purposes than in its English counterparts. Sheridan Le Fanu’s Uncle Silas (1864), Sommerville and Ross’s An Irish Cousin (1903), and Elizabeth Bowen’s The...

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