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Front Matter [23rd International Grassland Congress Proceedings], National Organizing Committee, International Grassland Congress

IGC Proceedings (1977-2023)

No abstract provided.

Healthcare Industry Injuries By Patient Contact Status In Kentucky, 2012-2014, Kristen Ranzenberger

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

Objectives

The healthcare industry continues to have a high number of reported injuries. The purpose of this study was to 1) characterize healthcare industry injuries by patient contact status; 2) identify the occupations associated with healthcare injuries by patient contact status; and 3) determine healthcare injury rates by occupation, to gain a better understanding of healthcare industry compensated injuries , and better target healthcare industry safety practices and programs.

Methods

Workers’ Compensation first reports of injuries (FROI) from the healthcare industry in Kentucky were categorized into injuries involving in direct patient contact vs. injuries without direct patient contact using narrative …

Rural Healthcare Worker's Willingness To Report To Work During Catastrophic Events, Aaron M. Macdonald

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

In the events leading up to, during, and following a catastrophic event, healthcare workers play a critical role in the outcome of these events. Therefore it is of the utmost importance that healthcare workers are able and willing to report to work. Prior to September, 2001 there had been three willingness to report studies published in the literature. Post September, 2001 and up until 2011 there was a renewed interest in the topic which led to the publishing of twenty plus papers on the topic. The current literature has examined willingness to report thoroughly and definitively; however, there is a …

Flow, Spray Pattern, And Droplet Spectra Characteristics Of An Electronically Actuated Variable-Orifice Nozzle, Joe D. Luck, Santosh K. Pitla, Michael P. Sama, Scott A. Shearer

Biosystems and Agricultural Engineering Faculty Publications

The purpose of this study was to develop and evaluate the flow rate, spray pattern, and droplet spectra characteristics of an actively controlled variable-orifice nozzle at constant carrier pressures. A commercially available variable-orifice nozzle (VariTarget) was modified to allow for direct electromechanical control of the metering stem. The modified system was tested at five carrier pressures ranging from 138 to 414 kPa and five metering stem (and thus orifice) positions. The metering stem position range was chosen because it provided a linear response in flow rate at each carrier pressure. Flow rate testing indicated a turndown ratio of 2.4:1 at …

"Bent But Not Broken": A Mixed Methods Study Of Mothering During Chemotherapy For Breast Cancer, Julie A. Baltisberger

Theses and Dissertations--Rehabilitation Sciences

Breast cancer is the most common cancer diagnosis of women, with an estimated 232,670 new cases in 2014. With 89.2% of breast cancer patients surviving five years or longer, studies are needed to investigate the long-term impact of breast cancer on women and families (National Cancer Institute, 2014).

The purpose of this study was to examine, using a mixed methods approach, the impact of chemotherapy on mothering occupations for patients diagnosed with breast cancer. Thirty-one women (mean age=39.6, SD=5.79), with breast cancer of any stage, who were currently undergoing chemotherapy and had at least one child under the age of …

Problem Solving Of Typically Developing Children On An Adaptation Of The Twenty Questions Task, Janice Carter Smith

Theses and Dissertations--Rehabilitation Sciences

This cross sectional study examined problem solving by typically developing children on the Rapid Assessment of Problem Solving test (RAPS). The RAPS, a modification of Mosher and Hornsby’s 20Q task, requires the examinee to solve three problems. Each problem involves asking yes/no questions to identify a target picture from a 32-picture array with as few questions as possible. Participants were 73 young (ages 7-9), 79 early adolescent (ages 10-13) and 77 adolescent (ages 14-17) children residing in Kentucky. Children were seen in the summer months and administered the RAPS on a single occasion, with 22 of the children being testing …

Effects Of An Online Training In The Ziggurat Model On The Autism Knowledge Of School-Based Speech-Language Pathologists (Slps), Wendy L. Wilkerson

Theses and Dissertations--Rehabilitation Sciences

Autism Spectrum Disorder (ASD) is a low-incidence disorder with high impacts on individuals, families, and society. School-based speech-language pathologists (SLPs) have tremendous responsibilities toward individuals with ASD, but pre-service SLPs are not adequately trained to fulfill these expectations. In order to reduce the widespread financial and social impact of ASD, school-based SLPs need to complete effective training to prepare them for the selection of established social-communication practices. One framework for the selection of individualized intervention is the Ziggurat Model (Aspy & Grossman, 2008). The following study used mixed methods to investigate the research question: “Does the ASD knowledge base of …

The Joys Of Earth: Evolutionary Kinship In Victorian Atheist And Agnostic Authors, Keri R. Stevenson

Theses and Dissertations--English

Darwin’s evolutionary theory provided, for some atheist and agnostic authors in Victorian England, a theory of kinship and community, of investment in the world, that had been missing before. Without a “creation” story that could match the Biblical version, those who stood outside the dominant Christian paradigm rarely had the words or concepts to construct their own visions of how humans fit into the existence of other species, into landscapes, and into a world that, if unfallen, seemed resistant to other explanations. Those who did construct alternate mythologies usually reared them on a Christian base.

Into the Victorian loss of …

Pack Factor Measurements For Corn In Grain Storage Bins, Rumela Bhadra, Aaron P. Turner, Mark E. Casada, Michael D. Montross, Sidney A. Thompson, Josephine M. Boac, Samuel G. Mcneill, Ronaldo G. Maghirang

Biosystems and Agricultural Engineering Faculty Publications

Shelled yellow corn is commonly stored in concrete or corrugated steel bins. Granular materials compact under their own weight, primarily due to particle rearrangement, leading to an increase in bulk density and a change in volume when stored. Reliable grain pack factors are needed to estimate storage capacities and to accurately monitor grain inventories. A science-based model (WPACKING) of pack factors is available that uses the differential form of Janssen's equation and takes into account the variation in density caused by pressure variation with height and moisture content of the grain and accounts for the effects of grain type, test …

Three Patients Needing High Doses Of Valproic Acid To Get Therapeutic Concentrations, James Jackson, Betsy Mccollum, Judy Ognibene, Francisco J. Diaz, Jose De Leon

Psychiatry Faculty Publications

Valproic acid (VPA) can autoinduce its own metabolism. Cases requiring VPA doses >4000 mg/day to obtain therapeutic plasma concentrations, such as these 3 cases, have never been published. Case 1 received VPA for seizures and schizophrenia and had >50 VPA concentrations in 4 years. A high dose of 5,250 mg/day of VPA concentrate was prescribed for years but this dose led to an intoxication when switched to the enterocoated divalproex sodium formulation, requiring a normal dose of 2000 mg/day. VPA metabolic capacity was significantly higher (t = -9.6; df = 6.3, p < 0.001) during the VPA concentrate therapy, possibly due to autoinduction in that formulation. Case 2 had VPA for schizoaffective psychosis with 10 VPA concentrations during an 8-week admission. To maintain a VPA level ≥50 μg/mL, VPA doses increased from 1500 …

Coffee: A Selected Overview Of Beneficial Or Harmful Effects On The Cardiovascular System?, Thomas F. Whayne Jr.

Internal Medicine Faculty Publications

With a history that began in 800 A.D., coffee is the most popular drink known and as a result, the issues regarding its physiologic effects deserve attention. Maintaining alertness is a well-known benefit and in addition, the cardiovascular (CV) effects of the active compounds, which include polyphenols and caffeine, must be considered. Genetics are relevant and where slow caffeine metabolism is inherent, the risk of nonfatal myocardial (MI) has been shown to be increased. Overall risk for coronary heart disease (CHD) is not supported and unless there is excessive intake, congestive heart failure (CHF) is not adversely affected; in moderation, …

Part Ii - Stress And Stress Management Strategies In Adolescents, Stephanie Stockburger, Hatim A. Omar

Pediatrics Faculty Publications

It is well known that adolescents experience stress. In this article, sources of adolescent stress will be discussed as well as the physiological effects of stress on the body. Stress disorders will also be briefly reviewed. Mainly, research on stress management strategies that have been evaluated in adolescents will be presented. Many studies have a small number of participants and lack control groups. Therefore, there is a need for ongoing research in this important area.

Cross-Talk Between The Tumor Suppressors Par-4 And P53, Tripti Shrestha Bhattarai

Theses and Dissertations--Toxicology and Cancer Biology

This work describes the fascinating interplay between two tumor suppressors Prostate apoptosis response-4 (Par-4) and p53. The guardian of the genome, p53, is frequently mutated in human cancers, and may contribute to therapeutic resistance. However, p53 is intact and functional in normal tissues, and we observed that specific activation of p53 in normal fibroblasts could induce apoptosis selectively in p53-deficient cancer cells. This paracrine apoptotic effect was executed by Par-4 secreted in response to p53 activation. Accordingly, activation of p53 in wild-type mice, but not in p53^-/- or Par-4^-/- mice, caused systemic elevation of Par-4 that induced apoptosis …

Breast Cancer Screening For African American Women, Jennifer Ross

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

INTRO Breast cancer is the most common type of malignancy among women in the United States (U.S.) and the second leading killer. Despite the availability of effective breast screening tools, a disparity has formed. Specifically, white women over the age of 40 experienced a higher incidence rate of breast cancer, while African American women experience higher related mortality rate. The purpose of this study was to examine SES and ethnicity/race factors that may influence breast cancer screening rates, and specifically explore how those factors may differ between African American and white women.

METHODS Women between the ages of 50-74 who …

Impact Of Kentucky Vaccination Exemption Laws On Pertussis Incidence, Katherine Blain

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

Purpose: According to CDC statistics, prior to pertussis vaccine development in the 1940’s, about 200,000 children contracted pertussis annually. Today, although this number has decreased drastically, pertussis cases began trending upward again in the 1980’s. There are several proposed contributory factors, including vaccination exemption. In Kentucky, there are both medical and religious exemptions to mandatory school vaccines. The purpose of this study was to examine possible correlations between reported school vaccination exemptions and pertussis incidence in Kentucky counties between the years 2004-2012.

Methods: This study retrospectively analyzed data from 120 Kentucky counties between 2004-2012. The Commonwealth of Kentucky School Annual …

Demographic Disparities In Children With Behavioral Or Conduct Disorders, Caitlin Dunworth

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

This study examines the demographic disparities in children with externalizing behavior disorders, such as oppositional defiant disorder and conduct disorder, utilizing secondary data from the 2011/2012 National Survey of Children’s Health (NSCH). Current literature suggests that children with externalizing behavior disorders are more likely to be male, live in a low-­‐income family, receive lower grades in school, and to develop later conditions such as depression. Chi square tests and logistic regression were used to examine the associations of presence of a current behavioral or conduct problems with age group, race/ethnicity, sex, household income level, and insurance type. Additionally, associations were …

Fatal Injuries Among Young Workers In Kentucky, 2005-2014, Allison Christian

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

Background: Young workers have been more vulnerable to fatal and nonfatal work injuries. To gain a comprehensive understanding of the injuries that led to fatalities in younger workers, the goal of this study was to compare characteristics of young worker fatal injuries in those aged 16-24 to all workers aged 25 and older in Kentucky using a descriptive analysis.

Methods: A retrospective analysis of fatalities among workers under the age of 25 compared to workers aged 25 and older was performed over a ten-year period from 2005-2014 using Kentucky Fatality Assessment and Control Evaluation (FACE) program data.

Results …

Pulmonary Function Among Latino Thoroughbred Workers - A Pilot Study, John C. Flunker

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

Background/Objectives

Evidence suggests working in horse barns is associated with adverse respiratory effects among Latino thoroughbred workers, yet no studies to date have measured pulmonary function. We examined the prevalence of self-reported respiratory symptoms, abnormal pulmonary function, and associated occupational factors among Latino thoroughbred farmworkers.

Methods

Participants were recruited via a community-based, purposive sampling strategy and participated in an interview-administered survey and spirometer test. Surveys and spirometry tests were administered to 80 participants by two trained health promoters (Promotoras) in July-September 2014. Pulmonary function (abnormal/normal) was classified by a pulmonologist. Demographic and occupational factors were assessed for associations with respiratory …

Salmonellosis In Kentucky Cattle - 2003-2014, Azia Elizabeth Ramirez

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

The group of bacteria known collectively as Salmonella has historically been a major cause of both health and economic hardships. In particular, Salmonella in bovine has been estimated to cause the economy to lose billions of dollars annually, both due to the increased morbidity and mortality rates of the cattle themselves and the indirect loss of potential profits, and also results in the spread of the bacteria to humans to ill effect. Salmonella thus can be quite taxing to agricultural communities, the animals upon which they rely, and the consumers that buy said communities’ commodities. Thus, the importance of an …

Outbreak Severity Index: The International Response To The Global Outbreaks, Mohamed A. Abofaye

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

Outbreaks are emergency situations that carry hazards of death, disability, loss of home and property, and variety of other calamities. With technological advancement, not only people and commodities are easy to transfer but also disease outbreaks. However, outbreaks are dealt with by different countries based on the differences in their healthcare systems and their ability to achieve effective control of the outbreak. SARS, MERS, and Ebola are example of such outbreaks that traveled around the globe and successful control was different according to the virulence of outbreak agent and to the effectiveness of local health system control measures. This capstone …

Injury Prevention In An Industrial Environment Via Strategic Job Placement, Michelle Cooper

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

Objectives. This study investigated the effects of an injury prevention program, specific to work related musculoskeletal disorders (WMSDs), which placed employees into jobs based on their physical abilities compared to the physical demands of their prospective jobs.

Methods. Employee injury data (N=3550) from a large auto manufacturer in the U.S. was analyzed to examine changes in injury rates for employees that were hired pre versus post-strategic placement. Bivariate and multivariate analyses were used to determine dependence between placement, injury within 120 days of hire and gender.

Results. Chi-square tests of independence revealed that injury rates and job placement may be …

Organizational Effectiveness Frameworks In Public Health Nonprofit Systems: A Case Study, Morgan Floyd

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

Problem: Nonprofits, especially in public health, have become more and more prevalent in recent years. With that increase in support, come greater awareness from stakeholders evaluate nonprofits as effective and impactful on the communities they serve. Frameworks of Organization Effectiveness allow investigators to predict how effective an organization might be in their work. The aims of this study were to identify key Organizational Effectiveness frameworks that could be used to evaluate Nonprofits and use them in practice. Therefore, individuals wishing to become involved with effective nonprofits will be empowered to make good investments of volunteer time and donations

Method: This …

"I See Their Purpose": Looking At The Role Of Family Advocates In Partnering With Families And Advocating For Children In Guatemala City, Sierra K. Leonard

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

The purpose of this study was to get an in-depth, complete picture of a social worker and child/family advocate in Guatemala City, Guatemala. The intent was to study the participant’s work and responsibilities in order to examine how she processed and completed her dual role as social worker/advocate and mother to a group of children in a children’s home. A focus on responsibility, the effect of her dual role, and the influence of her personal and religious convictions emerged throughout the study. The participant’s unique position in a dual role offered insight into the various aspects of advocacy and intervention …

Water Quality Trading From The Point Source Perspective: Willingness To Pay For Abatement Credits And Preferences For Water Quality Trading Market Mechanism, Andrew Mclaughlin

Theses and Dissertations--Agricultural Economics

As part of the EPA’s initiative to reduce the hypoxic zone in the Gulf of Mexico, a feasibility study for a potential water quality trading (WQT) program in the Kentucky River Watershed (KRW) was conducted. While theoretically, emission trading programs are among the most efficient means of reducing pollution, empirical evidence suggests low-trade volume as a primary concern for the long-term success of such programs. Some of the important reasons for the low volume of trade are due to lack of suitable market trading mechanism for point sources and lack of information on willingness to pay (WTP) for abatement credits. …

The Effect Of Dietary Nucleotides In Sow And Nursery Piglet Diets On Reproduction, Growth, And Immune Response, I-Fen Hung

Theses and Dissertations--Animal and Food Sciences

The objectives of these studies was to evaluate the effects of nucleotide (NT) supplementation of sow diets during late gestation and lactation and in nursery diets to elucidate the potential value of nucleotides for a variety of biological responses.

The studies conducted in the university research facilities showed that supplying nucleotides to sow diets during late gestation and throughout lactation had no effect on routinely measured reproductive responses or piglet growth postweaning. Nucleotides in the nursery diet had no effects on growth performance and intestinal morphology. However, the LPS-challenged pigs that consumed NT diets tended to lose less weight and …

Steroid-Dependent Regulation Of The Oviduct: A Cross-Species Transcriptomal Analysis, Katheryn L. Cerny

Theses and Dissertations--Animal and Food Sciences

Reproductive success depends on a functional oviduct for gamete storage, maturation, fertilization, and early-conceptus development. The ovarian-derived sex steroids estradiol and progesterone are known to affect functionality of the oviduct. Advances in microarray and NanoString technology allow for gene expression analysis to increase understanding of processes critical for fertility. Studies were conducted to investigate mechanisms regulating oviductal function in cattle and mice by using the Bovine Gene 1.0 ST array and the Mouse Gene 430-2.0 arrays (Affymetrix Inc., CA), respectively.

For the first study, oviducts were collected from heifers assigned to luteal or follicular phase groups. In the second study …

Impact Of Endophyte-Infected Tall Fescue Seed On The Acute Phase And Metabolic Responses Of Cattle During An Immunological Challenge, Alexander W. Altman

Theses and Dissertations--Animal and Food Sciences

Acute phase responses (APR) and circadian rhythm of body temperature (CRT) changes to a minor, chronic stressor (endophyte) and major, acute stressor, lipopolysaccharide (LPS) were evaluated in two experiments (E1:22 heifers; E2:24 heifers). Vaginal (E1 and E2) and rectal (E2) temperature probes recorded body temperature. Temperature was analyzed by cosinor analysis in each of 4 Phases: pre-endophyte (P1), endophyte exposure, pre-LPS (P2), post-LPS spike 1 (P3), post-LPS spike 2 (P4). During P1 of E1, amplitude (P=0.05), but not mean temperatures (P>0.10), differed across days (P=0.05). Endophyte affected E2 vaginal temperature amplitudes in P2 (P=0.07) and P4 (P=0.08) without influencing …

Interaction Of Dietary Supplements Of Organic Trace Minerals And Phytase On Growth Performance And Mineral Metabolism Of Replacement Pullets, Alfredo Mañón

Theses and Dissertations--Animal and Food Sciences

Effects of dietary supplementation with low levels of organic sources of trace minerals in place of normal levels of their inorganic salts and phytase on growth performance and mineral metabolism were evaluated in two studies using pullets of white and brown shell laying strains. The organic sources were proteinates of copper, iron, manganese and zinc and selenium yeast. A corn-soybean meal diet was fed alone, plus inorganic minerals or plus organic minerals, and with or without phytase in a 3 x 2 factorial arrangement. Twelve groups of 16 pullets, 2 weeks old, were used per treatment. Compared with inorganic minerals, …

Association Between Stressful Life Events And Change Of Maternal Smoking During Pregnancy Using Prams 2011-2012, Shidie Tang

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

Objective: To examine the association between stressful life events during pregnancy and change of maternal smoking behaviors.

Methods: We used data from the CDC’s Pregnancy Risk Assessment Monitoring System (PRAMS) to conduct the research. Our data included 24 states from 2011-2012. We considered 13 stressful life events and grouped them into four categories: emotional, partner-related, financial and traumatic stressors. Change of Maternal Smoking during pregnancy was defined by smoking at the last trimester of pregnancy versus smoking at 3 months prior to smoking. Confounders included maternal age, race/ethnicity, education, marital status, Medicaid coverage upon delivery and income prior …

Evaluation Of A Rheumatology Patient Prioritization Triage System, Katharine R. Layton

DNP Projects

The United States health care system is currently experiencing an increase in demand for services due to an aging population. Rheumatology, an Internal Medicine sub-specialty, treats those patients with arthritic conditions as well as other autoimmune and inflammatory conditions. A shortage of rheumatologists is projected by 2025, adding additional stress to an already burdened clinical area.This means patients can face substantial wait times when requesting consultation with a rheumatology provider.This capstone project will present three manuscripts that explore the referral process from primary to specialty care and strategies to reduce wait times. The first manuscript is a literature review that …