Digital Commons Network^™

Prevention: Sexual Violence Against Adolescent And Young Adult Women, Kimberly K. Mcclanahan, Marlene B. Huff, Hatim A. Omar, Joav Merrick

Pediatrics Faculty Publications

No abstract provided.

A Grassroots Program For Youth Suicide Prevention, Stephanie Stockburger, Hatim A. Omar

Pediatrics Faculty Publications

Suicide is a major public health problem. It affects people of all ages. Youth, in particular, have a disturbingly high suicide rate. Suicide is the third leading cause of death for young people between the ages of 10 and 24 (1). Approximately 4600 young people die each year from a suicide attempt (1). The most common methods used in suicides are firearms (45%), suffocation (which may be in the form of hanging) (40%), and poisoning (8%) (1). However, more young people survive suicide attempts than actually die from the attempt. A national survey of youth in both private and public …

Reduced Inputs Turfgrass Through White Clover Inclusion, Bret Andrew Sparks

Theses and Dissertations--Plant and Soil Sciences

Most managed turfgrass species require frequent inputs to maintain an acceptable level of quality. Among these inputs, nitrogen (N) fertilization is usually the most limiting in terms of growth and development. However, N fertilization is also linked to non-point source (NPS) pollution. White clover (WC) is known for its ability to provide N when mixed into stands of turfgrass, and does not pose a threat for NPS pollution. Two field studies were designed to investigate the effects of WC inclusion in stands of cool-season turfgrasses. In the first field study, three cultivation techniques were examined for establishment of WC into …

Soil And Biosolid Nano- And Macro-Colloid Properties And Contaminant Transport Behavior, Jessique L. Ghezzi

Theses and Dissertations--Plant and Soil Sciences

Despite indications that they are potential contaminant transport systems and threats to groundwater quality, very little effort has been invested in comparing contaminant transport behavior of natural environmental nanocolloids and their corresponding macrocolloid fractions in the presence of As, Se, Pb, and Cu contaminants. This study involved physico-chemical, mineralogical, stability and contaminant-transport characterizations of nano- (< 100 nm) and macro-colloids (100-2000 nm) fractionated from three Kentucky soils and one biosolid waste. Particle size was investigated with SEM/TEM and dynamic light scattering. Surface reactivity was estimated using CEC and zeta potential. Mineralogical composition was determined by XRD, FTIR, and thermogravimetric analyses. Sorption isotherms assessed affinities for Cu²⁺, Pb²⁺, AsO₃^-, and SeO₄^-2 contaminants, while settling kinetics experiments of suspensions at 0, 2 and 10 mg/L contaminants determined stability and transportability potential. Undisturbed 18x30 cm KY Ashton Loam soil monoliths were also used for …

I Can't Hear You But I'M Not Sure I'M Going To Tell You: Perceptions Of Stigma And Disclosure For Individuals Who Are Deaf Or Hard Of Hearing, Brittany Nicole Lash

Theses and Dissertations--Communication

Communication processes can be affected by stigma – a negative evaluation of an individual’s attributes that discredits or identifies the individual as not normal (Goffman, 1963). One such communicative process that is affected by stigma is disclosure. Disclosure is when individuals share personal information that reveals something not previously known (Charmaz, 1991). One such group of individuals who may be forced to choose between disclosing (to get accommodations or social support) and avoiding stigma (by not disclosing) is individuals with disabilities (Braithwaite, 1991; Charmaz, 1991).

This study focuses on one particular population of individuals with disabilities – those with a …

Using Inoculation Messages To Protect “Stay In The Market” Beliefs During Financial Crises, Lindsay Lyles Dillingham

Theses and Dissertations--Communication

This paper focuses on the problem of collapsed “stay in the market” (SIM) beliefs during financial crises. The primary purpose of this investigation was to ascertain whether or not inoculation messages represent a viable communication strategy to preemptively protect SIM beliefs during forthcoming financial crises. Ancillary purposes of this study were to further investigate the role of print and video crises, explicit instructions regarding post-inoculation talk (PIT), and gain and loss frame inoculation messages on the inoculation process. This study used a between subjects factorial design (3 x 2 plus four additional conditions) to explore ten hypotheses. Data collected from …

Examining Cyberbullying Bystander Behavior Using A Multiple Goals Perspective, Sarah E. Jones

Theses and Dissertations--Communication

Cyberbullying, defined as any behavior performed through electronic or digital media by individuals or groups that repeatedly communicates hostile or aggressive messages intended to inflict harm or discomfort on others, is a widespread problem. Bystanders play an integral role in the initiation, maintenance, and prolonged presence of such aggressive behaviors, but have thus far been overlooked in cyberbullying literature. Cyberbullying bystanders are defined in this study as those who witness cyberbullying, either within or outside their personal social network(s) and whose available responses range from inaction to intervention. Operating from a social-ecological perspective and guided by multiple goals theories, this …

Communication During First-Time Multidisciplinary Clinic Visits: Navigating Parental Decision Making And Uncertainty Management In Pediatric Chronic Illness, Anna M. Kerr

Theses and Dissertations--Communication

Individuals with chronic illnesses must manage long-term uncertainty and decision making as they cope with the ways the illness influences almost every aspect of their lives. In the context of pediatric illnesses, parents assume the burden of uncertainty management and decision making during the diagnosis and treatment of their child’s illness. It is common for children with complex chronic illnesses to see multiple specialists for the treatment of their condition. The first visit to a specialist is often more elaborate than a routine primary care visit. While previous research has explored parents’ decision making and uncertainty management during a child’s …

Clearing The Smoke: Understanding Organizational Change Communication And Misalignment In High-Risk Contexts, Laura Elizabeth Young

Theses and Dissertations--Communication

Recent economic turbulence in the United States has resulted in budget cuts for many city-funded organizations, including high-risk organizations such as local fire departments. Budget cuts trigger organizational change and create uncertainty among employees, which is a major concern for high-risk organizations. This dissertation examined internal communication practices used during organizational change in an urban fire department and the influence of organizational structure and culture on communication satisfaction. This robust case study used a multi-method approach including interviews with middle managers (i.e., district majors), and focus groups and channel preference surveys with full-time firefighters from lower level ranks (i.e., firefighters, …

Testing The Message: Making Sense Of Converging Multimodal Messages In A Foodborne Illness Outbreak, Bethney A. Wilson

Theses and Dissertations--Communication

The goal of risk and crisis communication is to reduce and contain the harm inherent in a threat. In order to achieve this goal, risk and crisis scholars call for continued testing of messages surrounding these events; specifically, messages that address the needs of the at-risk message receiver. Previous scholarship suggests that these messages should include adapting and instructing information (Coombs, 2012), and should be designed using pedagogically sound instructional approaches (Frisby, Sellnow, Sellnow, Lane, & Veil, 2011; Sellnow & Sellnow, 2010). In order to meet this call, this dissertation tested an instructionally sound message that includes both adapting and …

Social Support In Young Adult Cancer Survivors And Their Close Social Network Members, Nicholas Thomas Iannarino

Theses and Dissertations--Communication

A cancer diagnosis often causes biographical disruption in the lives of young adult (i.e., 18-39; YA) survivors and their close social network members (i.e., familial, plutonic, or romantic relational partners with whom the survivor has a salient relationship; SNM). In order to integrate their illness into their lives, normatively regain balance and equilibrium, and achieve a “new normal” following a cancer diagnosis, YA survivors and their close SNMs must work to reconstruct their biographies by engaging in tangible interpersonal communication processes often used to initiate and maintain relationships. However, YA cancer survivors report facing social struggles due to the biographical …

Increasing Compliance With A Tobacco-Free Policy Via A Campus Campaign, Rachael A. Record

Theses and Dissertations--Communication

The implementation of a tobacco-free policy is the leading recommendation among health institutes for reducing the harms associated with tobacco exposure–for both smokers and nonsmokers–on college campuses. Despite the health benefits associated with tobacco-free policies, compliance with these policies remains a serious challenge on college campuses. Interventions aimed at increasing smokers’ willingness to comply with tobacco-free policies are essential for improving public health.

Guided by the theory of planned behavior (TPB), the purpose of this study was to (a) investigate the factors associated with tobacco-free policy compliance among undergraduate students and (b) design and evaluate a theory-based campaign aimed at …

Rat Hippocampal Responses Up To 90 Days After A Single Nanoceria Dose Extends A Hierarchical Oxidative Stress Model For Nanoparticle Toxicity, Sarita S. Hardas, Rukhsana Sultana, Govind Warrier, Mo Dan, Peng Wu, Eric A. Grulke, Michael T. Tseng, Jason M. Unrine, Uschi M. Graham, Robert A. Yokel, D. Allan Butterfield

Chemistry Faculty Publications

Ceria engineered nanomaterials (ENMs) have very promising commercial and therapeutic applications. Few reports address the effects of nanoceria in intact mammals, let alone long term exposure. This knowledge is essential to understand potential therapeutic applications of nanoceria in relation to its hazard assessment. The current study elucidates oxidative stress responses in the rat hippocampus 1 and 20 h, and 1, 7, 30 and 90 days following a single systemic infusion of 30 nm nanoceria. The results are incorporated into a previously described hierarchical oxidative stress (HOS) model. During the 1-20 h period, increases of the GSSG: GSH ratio and cytoprotective …

Pharmacy Law Brief: Implications Of Being A Specialist, Joseph L. Fink Iii

Pharmacy Practice and Science Faculty Publications

No abstract provided.

Science And Public Policy Of Earthquake Hazard Mitigation In The New Madrid Seismic Zone, Alice M. Orton

Theses and Dissertations--Earth and Environmental Sciences

In the central United States, undefined earthquake sources, long earthquake recurrence intervals and uncertain ground motion attenuation models have contributed to an overstatement of regional seismic hazard for the New Madrid Seismic Zone on the National Seismic Hazard Maps. This study examined concerns regarding scientific uncertainties, overly stringent seismic mitigation policies and depressed local economy in western Kentucky through a series of informal interviews with local businessmen, public officials, and other professionals in occupations associated with seismic mitigation. Scientific and relative economic analyses were then performed using scenario earthquake models developed with FEMA’s Hazus-MH software. Effects of the 2008 Wenchuan …

Status Of Communication And Tracking Technologies In Underground Coal Mines, Alexander D. Douglas

Theses and Dissertations--Mining Engineering

In 2006, Congress passed the MINER Act requiring mine operators to submit an emergency response plan that included post-accident communications and tracking systems to MSHA within three years of the Act. These systems were required to be designed for maximum survivability after a catastrophic event, such as a fire or explosion, and to be permissible (meets MSHA criteria for explosion-proof). At that time, no commercially available systems existed that met these standards. Several companies undertook developing new, or enhancing existing, technologies to meet these requirements. This research presents the results of a study that was conducted to determine the present …

Evaluation Of A Novel Feedstuff For Horses, Catherine Whitehouse

Theses and Dissertations--Animal and Food Sciences

Determining digestibility of feed ingredients is a challenge. While forage type feeds may be fed as the sole dietary component, concentrates cannot. To determine the apparent digestibility of these ingredients a by difference method can be utilized. The study was conducted to investigate the nutritional value of corn germ dehydrated (AAFCO 48.32) for horses in comparison to two processed corns commonly fed to horses. The second objective was to compare total tract digestibility of the treatments to determine differences in digestibility of the various fiber fractions due to added concentrate and to use the difference method to determine nutrient digestibility …

Rheological, Foam, And Physical Properties Of Low Sucrose Meringue And Angel Food Cake Formulated With Non-Nutritive Sweeteners And Polydextrose, Kevin J. O'Niones

Theses and Dissertations--Animal and Food Sciences

The object of this research was to determine if an acceptable angel food cake alternative could be produced that had reduced calories and sucrose content. This was accomplished through replacing sucrose in meringue, angel food cake batter, and baked angel food cakes with polydextrose and either sucralose, acesulfame-K, or Rebaudioside A at different replacement levels (25, 50, 75, 100%). Meringue and cake batter properties were measured using rheological techniques. Baked angel food cakes were analyzed based on height, weight loss, moisture content, color, and TPA analysis. With meringue batter, 100% sucrose replacement was unacceptable since undissolved polydextrose made analyzing and …

Gestational Form Of Supplemental Selenium (Se) Affects Steroidogenic Gene Expression In The Newborn Calf Testis, Stefani R. Garbacik

Theses and Dissertations--Animal and Food Sciences

Selenium (Se) is an important trace mineral in the diet of cattle. Our objective was to determine whether the form of supplemental Se fed to the dam would affect the expression of genes regulating steroidogenesis in the newborn testis. Twenty-four Angus-cross cows were assigned randomly (n=8) to individual ad libitum access of a mineral mix containing 35 ppm of Se supplied as sodium selenite (inorganic, ISe; Prince Se), Sel-Plex (organic, OSe; Sel-Plex, Alltech) or a 50/50 mix of ISe/OSe (MIX) 4 months prior to breeding and throughout gestation. All male calves were castrated within 2 days of birth and total …

An Assessment Of Two Feed Additives To Improve Feed Utilization In Pigs, Amanda Shaw Thomas

Theses and Dissertations--Animal and Food Sciences

Three experiments were conducted to assess the efficacy of including selected feed additives in the diet of weaning and grow-finish pigs. Experiment 1 utilized 24 crossbred grow-finish pigs and measured the effect of added EHY on DM, N, and energy digestibility. There were no differences in DM, Energy, and N digestibility between diets 1 through 4. Experiment 2 utilized a total of 36 crossbred pigs [18 barrows, 18 gilts] in order to determine if preference would be shown when presented with naturally-contaminated corn. There were three dietary comparisons, Control vs Diet 2 (Comparison 1), Control vs Diet 4 (Comparison 2), …

The Impact Of Dual Chamber Cow Waterbeds As A Freestall Base, Barbara Alice Wadsworth

Theses and Dissertations--Animal and Food Sciences

The objectives of this research were to compare lying time, milk yield, rumination time, hock score, stall cleanliness, and stall temperature for 97 cows (Holsteins (n = 71), Jerseys (n = 10), and crossbreds (n = 16)) housed on Dual Chamber Cow Waterbeds™ (DCCW, Advanced Comfort Technology, Reedsburg, WI) or conventional rubber mattresses (MAT). This study was conducted at the University of Kentucky Coldstream Research Dairy Farm from January 18, 2012 to May 3, 2013. Lying times were longer (P < 0.01) for cows housed on the DCCW (10:32 ± 0:13) compared to cows housed on the MAT (9:47 ± 0:15). Milk yield was not different (P ≥ 0.05) between cows housed on the DCCW or MAT. Rumination times were greater (P = 0.03) for cows housed on MAT (6:44 ± 0:08) compared to cows housed on DCCW (6:29 ± 0:08). Hock scores were lesser (P = 0.02) for cows housed on DCCW (1.86 ± 0.03) compared to cows housed on MAT (1.97 ± 0.04). Stall cleanliness was not different (P ≥ 0.05) between the DCCW and the MAT. The DCCW stall temperature was warmer (P < 0.01) (13.29 ± 0.21 ⁰C) than the MAT (10.52 ± 0.21 ⁰C).

Compost Bedded Pack Barns For Dairy Cattle: Bedding Performance And Mastitis As Compared To Sand Freestalls, Elizabeth A. Eckelkamp

Theses and Dissertations--Animal and Food Sciences

Lameness and mastitis are the two most costly diseases in the dairy industry. Reduction of these diseases through housing and management is beneficial. Compost bedded pack (CBP) and sand freestall barns were compared in a long-term, on-farm study to assess the effect of housing on each disease. Another research objective was to evaluate the effects of ambient weather conditions on moisture and 20 cm internal temperature of CBP. Compost bedded pack moisture, C:N ratio, and internal temperature effects on cleanliness, mastitis, and bedding bacterial counts were also considered. The last research objective was to evaluate the economics of bedding material …

The Effect Of Various Pathologies On Bone Quality, Daniel S. Porter

Theses and Dissertations--Biomedical Engineering

Bone’s ability to resist fracture is often ignored until a low-energy fracture occurs. Patients with Chronic Kidney Disease (CKD) or osteoporosis are at an increased risk of low-energy fracture. Generally, fracture risk is evaluated by using a bone mineral density (BMD) test. BMD values; however, do not fully predict bone’s ability to resist fracture. This suggests that other parameters may be involved. Bone quality is the term used to describe these parameters, which are categorized into three groups: structural, material, and microdamage. The aim of this dissertation research was to examine whether bone quality was altered in patients who: 1) …

Let’S Play: Understanding The Role And Significance Of Digital Gaming In Old Age, Julie A. Skalsky Brown

Theses and Dissertations--Gerontology

Despite a marked increase in the use of digital games among older persons, there is insufficient research that provides insight into the gaming experiences of this population. A major demographic shift within the senior gaming market has ushered in a new perspective on the use of digital games as a tool for physical and cognitive health, and improved socialization. It is proposed that individual notions of play, which are developed over the life course, influence digital game play engagement and interaction preferences, and contribute to well-being. This study explored how self-perceptions of play over the course of the senior gamer’s …

Implementing The Food Safety Modernization Act: An Examination Of The Inequitable Impact Of The Proposed Preventive Controls And Produce Safety Rules, Ben Metzger

Kentucky Journal of Equine, Agriculture, & Natural Resources Law

No abstract provided.

Plagiarism Of Ideas. Benjamin Rush And Charles Caldwell--A Student-Mentor Dispute, Charles T. Ambrose

Microbiology, Immunology, and Molecular Genetics Faculty Publications

No abstract provided.

The Effects Of Household Socio-Demographics On Restaurant Threshold Prices, Georgette Owusu-Amankwah

Theses and Dissertations--Agricultural Economics

This study examines the determinants of a household’s threshold price for a restaurant meal cost increase; the level of cost increase that would cause households to either eat in restaurants less frequently or change what they would typically purchase. The design of the study is formulated using a Tobit model to examine the threshold price by differing social, economic and demographic characteristics of households in Kentucky as well as their preferences for restaurant-specific characteristics.

The empirical estimates suggest that households that frequently have dinner at restaurants, households with higher incomes and households that strongly prefer full-service restaurants have a positive …

Study Abroad Opportunities For Dietetics And Human Nutrition Students: Expectations, Benefits And Barriers, Kailey Marie Cunningham

Theses and Dissertations--Nutrition and Food Systems

This study analyzed the perceptions of University of Kentucky Dietetic and Human Nutrition students as they relate to the benefits and barriers of study abroad educational opportunities. The final sample consisted of 164 participants, with 18.9% (n=31) in the Coordinated Program in Dietetics (CP), 32.3% (n=53) in the Didactic Program in Dietetics (DPD), 42.7% (n=70) in the Human Nutrition (HN) program and 5.5% (n=9) who identified their program as ‘other’. The primary barriers to participation in study abroad were cost and problems fitting education abroad into the current program of study. The primary benefits were identified as dietary and health …

Transnational Policy Articulations: India, Agriculture, And The Wto, Christopher L. Blackden

Theses and Dissertations--Geography

Agriculture remains one of the most contentious issues in the ongoing negotiations of the World Trade Organization, with serious implications for food security and the livelihood of farmers in the developing world. This dissertation examines the formation of agricultural trade policy and the politics and arguments surrounding it within the context of India’s position in the World Trade Organization (WTO). The research has two components. A set of archival documents relating to India’s participation in a WTO institution called the Trade Policy Review (TPR) was analyzed. In addition, semi-structured interviews were undertaken with a number of Indian experts and officials …

Redefining Development: Exploring Alternative Economic Practices In Appalachia, Amanda Fickey

Theses and Dissertations--Geography

This dissertation examines alternative economic practices and regional economic development strategies in the Appalachian region. First, I deconstruct regional economic development policies and practices. I argue that policy documents produced by the Appalachian Regional Commission and the State of Kentucky have often limited economic imaginings through the perpetuation of regional stereotypes and short-term, decontextualized strategies. Then, I explore the existence of alternative economic practices as well as the contradictory role of the state within the context of Eastern Kentucky’s craft industry. Using a mixed methods approach, I investigate how the state simultaneously supports cooperative craft production by perpetuating a geographical …