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Graduate Theses and Dissertations

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Occupational Noise Exposure Evaluation Of Airline Ramp Workers, Adekunle Ogunyemi Apr 2018

Occupational Noise Exposure Evaluation Of Airline Ramp Workers, Adekunle Ogunyemi

Graduate Theses and Dissertations

Noise exposure is a common hazard to workforce in general although at varying degrees depending on the occupation, as many workers are exposed for long periods of time to potentially hazardous noise.

Every year, twenty-two million workers are exposed to potentially damaging noise at work. In 2015 U.S. businesses paid over $1.5 million in penalties for not protecting workers from noise. (OSHA, 2016). There may be a direct or indirect consequence of the possibilities of overexposure to noise notwithstanding the compulsory hearing protection requests for the occupations with potential hazards, and these exposures usually arise from the various ...


Identification Of Novel Hits Against, Ala A. Azhari Apr 2018

Identification Of Novel Hits Against, Ala A. Azhari

Graduate Theses and Dissertations

Leishmaniasis is a disease caused by obligate intracellular parasites of the genus Leishmania, including 20 species that are pathogenic to humans. Female sand fly is the known vector that can transmit the disease. Visceral leishmaniasis is the severe form of the disease that affects internal organs and can be fatal with inappropriate diagnosis or treatment. Leishmania donovani is the causative agent of visceral leishmaniasis. Approximately 350 million in 89 countries are at risk of infection. Around 2 million new cases are reported annually with 500,000 of these are visceral leishmaniasis. Current drug therapies are inadequate due to their toxicity ...


Characterization Of Scanning Mobility Particle Sizers For Use With Nanoaerosols, Michael R. Henderson Apr 2018

Characterization Of Scanning Mobility Particle Sizers For Use With Nanoaerosols, Michael R. Henderson

Graduate Theses and Dissertations

The purpose of this study was to evaluate the performance of scanning mobility particle sizers in the characterization of nanoaerosols. A sampling chamber was constructed from aluminum and tempered glass, had a volume of 4.6 cubic feet, and was designed for the introduction of aerosols and dilution air, maintenance of aerosol concentration, and continuous exhaust of chamber air. Penetration and aerosol distribution tests were conducted within the chamber. An aerosol generation and measurement system comprised of nitrogen gas, BGI 3 jet Collison Nebulizer, diffusion dryer, aerosol charge neutralizer, mixing chamber, critical orifice, hygrometer, condensation particle counter, scanning mobility particle ...


The Effects Of A Task Analysis And Self-Evaluation On The Acquisition Of Yoga Postures, Elizabeth Ortega Mar 2018

The Effects Of A Task Analysis And Self-Evaluation On The Acquisition Of Yoga Postures, Elizabeth Ortega

Graduate Theses and Dissertations

There is a growing amount of research evaluating behavioral approaches for skill acquisition in sports. Few of these studies have focused on yoga and skill acquisition. There is a need for a low effort yet effective way to teach yoga postures to individuals who do not take private yoga classes and may practice at home. This study evaluated the effects of using a picture-based task analysis and self-evaluation on the skill acquisition of yoga postures. A multiple baseline across yoga postures was used. During the task analyses intervention, the participants received a task analysis, performed the posture, and scored the ...


Telling A Rape Joke: Performing Humor In A Victim Help Center, Angela Mary Candela Mar 2018

Telling A Rape Joke: Performing Humor In A Victim Help Center, Angela Mary Candela

Graduate Theses and Dissertations

This study examines the function of humor as a discourse in discussion of sexual battery. In this study, I examine the ways sexual battery, consent, and victimization are social constructed. Humor is a form of discourse where individuals are allowed to speak more freely about taboo topics, including that of sexual battery. I examine humor within presentations given from a Victim Help Center. Using field notes, slides, videos, and audio-recordings, I analyze instances of humor within the presentations. I analyze the data multimodally, in order to provide a richer, qualitative analysis. In this thesis, I argue that humor observed in ...


Impact Of Obesity And Expression Of Obesity-Related Genes In The Progression Of Prostate Cancer In African American Men, Mmadili Nancy Ilozumba Mar 2018

Impact Of Obesity And Expression Of Obesity-Related Genes In The Progression Of Prostate Cancer In African American Men, Mmadili Nancy Ilozumba

Graduate Theses and Dissertations

In the US, the incidence and mortality rates of prostate cancer (PCa) are higher among African American men compared to European American men. Obesity is an important risk factor of PCa. Obesity is known to alter the gene expression profiles in prostate tumors. This study evaluates the impact of obesity and the expression of obesity-related genes on the progression of PCa in African American men.

The primary outcome of interest is biochemical recurrence (BCR) of PCa. There were 48 African American prostate cancer patients in the study. The tissue samples included 42 normal tissues, 40 Prostate Intraepithelial Neoplasia (PIN) and ...


Teaching Debit Card Skills Using General Case Programming, Kristin More Mar 2018

Teaching Debit Card Skills Using General Case Programming, Kristin More

Graduate Theses and Dissertations

Independent living skills are extremely important for individuals with developmental disabilities as these skills aide in autonomy, lessen the burden on caregivers, and assist with integration into the community. An important skill that should be targeted is purchasing skills. Teaching purchasing skills can bring individuals into contact with new environments and access to items that would not have been available for them to access independently before learning the skill. Traditional purchasing skills often target teaching money and math skills. However, as technology advances, these skills are not only hard to teach to various individuals but may be outdated. There have ...


Design And Implementation Of A Ferrocement Improved Cookstove In Rural Panama, Josh Donegan Mar 2018

Design And Implementation Of A Ferrocement Improved Cookstove In Rural Panama, Josh Donegan

Graduate Theses and Dissertations

Household air pollution contributes to the premature death of more than 4 million people annually. Improved cookstoves are one technological intervention that can potentially reduce exposure to household air pollution. However, improved cookstove implementation programs need to consider measures to increase sustainability and promote long-term adoption. The objectives of this research were 1) to develop and implement a new ferrocement cookstove for Peña Blanca, a rural indigenous community in the Ngäbe-Bugle region of Panama, 2) to evaluate its potential sustainability in comparison to the most common cooking technologies observed in the community, 3) to prepare a construction manual for the ...


Effectiveness Of Biocide Substitution And Management Plan Implementation For The Control Of, Adelmarie Bones Mar 2018

Effectiveness Of Biocide Substitution And Management Plan Implementation For The Control Of, Adelmarie Bones

Graduate Theses and Dissertations

After the notorious outbreak and discovery of Legionella bacteria in 1976, the waterborne pathogen was added to the list of disease-causing agents associated with the built environment. Legionella pneumophila was discovered when it was identified as the agent that caused 34 deaths and an outbreak of pneumonia-like symptoms in several attendees of the 1976 American Legion Convention held in Philadelphia (OSHA, 2017).

Recently published data from the year 2015 reported more than 6,000 Legionnaires’ cases identified in the United States (CDC, 2016). This is a concerning number given that one in every ten infected persons will die of the ...


Angiostrongylus Cantonensis: Epidemiologic Review, Location-Specific Habitat Modelling, And Surveillance In Hillsborough County, Florida, U.S.A., Brad Christian Perich Mar 2018

Angiostrongylus Cantonensis: Epidemiologic Review, Location-Specific Habitat Modelling, And Surveillance In Hillsborough County, Florida, U.S.A., Brad Christian Perich

Graduate Theses and Dissertations

Angiostrongylus cantonensis is a parasitic nematode endemic to tropical and subtropical regions and is the leading cause of human eosinophilic meningitis. The parasite is commonly known as rat lungworm because the primary host in its lifecycle is the rat. A clinical overview of rat lungworm infection is presented, followed by a literature review of rat lungworm epidemiology, risk factors, and surveillance projects. Data collected from previous snail surveys in Florida was considered alongside elevation, population per square kilometer, median household income by zip code territory, and normalized difference vegetation index specific to the geographic coordinates from which the snail samples ...


Fulfillment Of The Employee Psychological Contract In A Healthcare System: Does It Drive Employee Engagement And Reduce Turnover Intention?, Jennifer C. Bonilla Jan 2018

Fulfillment Of The Employee Psychological Contract In A Healthcare System: Does It Drive Employee Engagement And Reduce Turnover Intention?, Jennifer C. Bonilla

Graduate Theses and Dissertations

ABSTRACT

Attracting and retaining talent is a significant differentiator for healthcare companies during this time of growth, transformation, talent shortage, and burnout within the industry. The need to attract and retain skilled workers has spawned the development of strategic talent management functions to drive business performance. Delivering psychological contract fulfillment for employees may be a major differentiator for healthcare employers seeking to deliver business outcomes. Today’s multigenerational workforce shows signs of reduced employee engagement and stronger turnover intention, and it is challenging traditional engagement and retention strategies. Scant research has been conducted to support the rationale for fulfilling the ...


Biomechanical Analysis Of Bovine Lamina, Ray Jeffrey Lee Jan 2018

Biomechanical Analysis Of Bovine Lamina, Ray Jeffrey Lee

Graduate Theses and Dissertations

Bovine lameness is an economic drain on producers and is a welfare issue. There are many causes of lameness; however, most causes involve the hoof. One of the supporting structures of the hoof is the interface between the hard epidermal layer and the sensitive dermal layer and is referred to as the lamina. Lamina consist of leaflets of tissue that interdigitate with one another to allow for constant renewal and remodeling of these hoof attachments. Systemic or traumatic insults can compromise the integrity of the lamina and may result in reduced ambulatory capabilities of the animal, pain, and a myriad ...


Evaluating The In Vivo Immune Response To Mycobacterium Avium Subspecies Paratuberculosis Infection In Naive And Vaccinated Calves, Tracy Lindquist Jan 2018

Evaluating The In Vivo Immune Response To Mycobacterium Avium Subspecies Paratuberculosis Infection In Naive And Vaccinated Calves, Tracy Lindquist

Graduate Theses and Dissertations

In these studies, an implant device was developed to detect vaccination-induced, cell-mediated immunity in the subcutaneous tissue of calves. The long-term, future aim of these combined studies is to use the implant device to efficiently screen novel Mycobacterium avium subsp. paratuberculosis (MAP) vaccine candidates. This in vivo screening test would rapidly and inexpensively provide knowledge of a vaccine’s

efficacy in the host species; vaccine candidates exhibiting evidence of efficacy could then be selected for more extensive vaccine challenge studies. A better understanding of in vivo cell-mediated immunity in response to MAP immunization is essential for the development of a ...


Food Safety Policies And Procedures For Student-Led Food Events At Colleges And Universities In The United States, Sangwook Kang Jan 2018

Food Safety Policies And Procedures For Student-Led Food Events At Colleges And Universities In The United States, Sangwook Kang

Graduate Theses and Dissertations

Many college students host student-led food events at colleges and universities (CUs) in the United States (U.S.), but research has shown that a lack of food safety knowledge among college students may result in unsafe food handling practices. While CUs in the U.S. may have food safety policies and procedures in place to ensure safe food handling practices for student-led food events during these events, there have been no research studies exploring their current food safety policies and procedures. This study is therefore aimed at exploring current food safety policies and procedures for student-led events at CUs in ...


Family Systems Associations With Obesogenic Behaviors Among Rural Latino And White Families, Brianna Routh Jan 2018

Family Systems Associations With Obesogenic Behaviors Among Rural Latino And White Families, Brianna Routh

Graduate Theses and Dissertations

Although obesity rates in the United States have stabilized at the national level, disparities continue to exist among rural, low-income, and Latino children. Research has identified obesogenic behaviors in the home as leading contributors to child obesity, and these behaviors are potentially influenced by individual, family, and contextual factors. This dissertation examined data collected as part of the multi-state Rural Families Speak about Health Project and the associated Iowa Latino Family Project. Through regression and moderation analyses, Chapter 3 explored how family relationships influence children’s obesogenic behaviors in the home among Latino immigrant and White families living in rural ...


The Effects Of Simulation-Based Training On Critical Thinking, Raiza Lee Dottin Jan 2018

The Effects Of Simulation-Based Training On Critical Thinking, Raiza Lee Dottin

Graduate Theses and Dissertations

The purpose of this study was to examine the effects of a simulation-based training on the critical thinking skills of 10 graduate medical education trainees to understand the potential of simulation-based training as an innovative tool to improve medical competencies among trainees in a graduate medical training program. The theoretical framework incorporated in this study focused on the Five-Stage Model of Adult Skill Acquisition by Dreyfus and Dreyfus and the Theory of Andragogy by Malcolm Knowles to examine how adults learn in a medical simulation-based training setting. This study utilized a pre-and posttest, the AAC&U VALUE Critical Thinking Rubric ...


Effects Of Income And Education Levels On Diurnal Cortisol In Black And White American Youth Transitioning Into Adulthood, Shannin Nicole Moody Jan 2018

Effects Of Income And Education Levels On Diurnal Cortisol In Black And White American Youth Transitioning Into Adulthood, Shannin Nicole Moody

Graduate Theses and Dissertations

Cortisol patterns differ across both socioeconomic status and racial minority groups. Yet, whether the underlying constructs that are used to measure socioeconomic status impacts the output of cortisol differentially across racial groups is unclear. Using a secondary data analysis from the Parents Who Care longitudinal study, which integrated the biomarker cortisol as youth entered emerging adulthood, the goal of this thesis is to parse apart the common conflation of income and education into a single catchall variable.

The following data was collected in 2 waves from a group of youth who were (M=20.24; R=18.51-22.89) years ...


Investigating Immunological Responses Of Wc1+ Gamma Delta T Cells In Cattle Naturally Infected With Mycobacterium Avium Subspecies Paratuberculosis (Map), Saleh Mohammed Albarrak Jan 2018

Investigating Immunological Responses Of Wc1+ Gamma Delta T Cells In Cattle Naturally Infected With Mycobacterium Avium Subspecies Paratuberculosis (Map), Saleh Mohammed Albarrak

Graduate Theses and Dissertations

In these studies, we used non-infected cattle and cattle naturally infected with MAP that were either in the subclinical or clinical stage of infection to test the hypothesis that infection status influences WC1+ γδ T cells frequency, proliferation, and cytokine production. We found no significant differences between subclinical and clinical cattle with regard to WC1+ γδ T cells frequency in peripheral blood or in the ileum, a primary site for MAP infection. In PBMCs taken from MAP-infected cattle, WC1+ γδ T cells responded diffrentially to stimulation with PPD-J. In the clinical group, WC1+ γδ T cells failed to proliferate and ...


Physical Activity And Sarcopenia In Older Adults, Nathan Frederick Meier Jan 2018

Physical Activity And Sarcopenia In Older Adults, Nathan Frederick Meier

Graduate Theses and Dissertations

The aging process is typically associated with loss of muscle mass, strength, and function. At a certain threshold, low levels of muscle mass, strength, and function are considered a disease called sarcopenia, which is associated with increased risk of falls, loss of independence, mobility issues, and mortality. Evidence suggests some of the risk factors for sarcopenia, such as sedentary lifestyle, low physical activity, bedrest, chronic disease, certain drug treatments, malnutrition, anabolic resistance, intermuscular adipose tissue infiltration, and decreased neuromuscular activation, are modifiable. Also, both the prevention and treatment of sarcopenia call for prescription of physical activity. Therefore, the overall interest ...


Neoliberal Effects As Seen In Village Health Dispensaries Within The Kedougou Region Of Southeast Senegal, Samantha Salter Jan 2018

Neoliberal Effects As Seen In Village Health Dispensaries Within The Kedougou Region Of Southeast Senegal, Samantha Salter

Graduate Theses and Dissertations

My research lead me to the Kedougou Region of southeastern Senegal, a rural area struggling for accessible healthcare. This paper explores how neoliberal health reforms have negatively affected access to quality health care in rural Senegal. I used ethnographic research methods, such as in person interviews and participant observation during my fieldwork in Senegal from May through August 2017. In analyzing my interview and observation data, I applied a localist, semi-structured approach and utilized a critical ethnographic perspective. Over 2-months worth of observations and 15 interviews yielded data that illustrates the lasting effects of neoliberal economic reforms from 30 years ...


Assessing Hospitality Industry Employee Perceptions Of Performance Appraisals, James M. Storey Jan 2018

Assessing Hospitality Industry Employee Perceptions Of Performance Appraisals, James M. Storey

Graduate Theses and Dissertations

Performance appraisals are prevalent in all credible hospitality organizations today (Capelli, 2016). After an extensive review of the literature, it is apparent that there is a considerable disconnect between the execution of the performance appraisal and the outcomes that a practitioner would expect. With the use of the implicit person theory (IPT) and the five-factor model (FFM), this study pursued a view of how the personality disposition of a manager may affect how a performance appraisal is perceived by subordinates suggesting that innately some managers are better suited to conduct performance appraisals. The aim of this research was to assess ...


Evaluating The Effectiveness Of Two Training Formats For Grain Dust Explosion Prevention, Wesley Tzungju Chang Jan 2018

Evaluating The Effectiveness Of Two Training Formats For Grain Dust Explosion Prevention, Wesley Tzungju Chang

Graduate Theses and Dissertations

Grain dust explosions result in fatalities, injuries, and downtimes in industry operations. Industry training has been implemented to educate workers on grain dust hazards and prevention tools and methods but no comprehensive evaluation has taken place. This research used the decision-making simulation to evaluate the effectiveness of two training formats for grain dust explosion programming using a four-level Kirkpatrick evaluation model. In addition, the association between the format of training and the decision choices made by workers and the information they used to make decision choices were examined. This research also examined the association between workers' level of perceived training ...


Predictive Analytics In Agribusiness Industries, Fatemeh Davoudi Kakhki Jan 2018

Predictive Analytics In Agribusiness Industries, Fatemeh Davoudi Kakhki

Graduate Theses and Dissertations

Agriculturally related industries are routinely among the most hazardous work environments. Workplace injuries directly impact labor-market outcomes including income reduction, job loss, and health of the injured workers. In addition to medical and indemnity costs, workplace incidents include indirect costs such as equipment damage and repair, incident investigation time, training new personnel for replacement of the injured ones, an increase in insurance premiums for the year following the incidents, a slowdown of production schedules, damage to companies’ reputation, and lowering the workers’ motivation to return to work. The main purpose of incident analysis is the derivation and development of preventative ...


Intent To Engage In Therapeutic Lifestyle Changes: Impact Of An Intervention, Self-Efficacy Expectations, Outcome Expectations, And Locus Of Control, Kaitlyn Van Pay Jan 2018

Intent To Engage In Therapeutic Lifestyle Changes: Impact Of An Intervention, Self-Efficacy Expectations, Outcome Expectations, And Locus Of Control, Kaitlyn Van Pay

Graduate Theses and Dissertations

Engagement in Therapeutic Lifestyle Changes (TLCs), such as time in nature, physical activity, nutrition, sleep, social interaction, religion/spirituality, stress management, and helping others, provides many mental health benefits (Walsh, 2011). Young adults could particularly benefit from the use of TLCs, as they are at greater risk of experiencing mental health concerns (APA, 2013). I devised an intervention to enhance TLC engagement in college students, and examined the impact this intervention (against a control intervention), had on self-efficacy expectations, outcome expectations, mental health locus of control, intent to increase TLC use, and TLC use at one-week follow-up. Participants were 459 ...


Host Transcriptomic Response To Newcastle Disease Virus In Relatively Resistant And Susceptible Inbred Chicken Lines, Melissa Deist Jan 2018

Host Transcriptomic Response To Newcastle Disease Virus In Relatively Resistant And Susceptible Inbred Chicken Lines, Melissa Deist

Graduate Theses and Dissertations

Newcastle disease virus (NDV) has devastating impacts on poultry throughout the world. The inbred Fayoumi and Leghorn chicken lines, previously characterized as relatively resistant and susceptible, respectively, to various pathogens were utilized to characterize host response to the NDV vaccine and identify potential genes and pathways associated with NDV resistance. Three-week-old chicks were inoculated with La Sota NDV (challenged) or PBS (nonchallenged) via the oculonasal route. At 2, 6, and 10 days post infection (dpi), approximately one-third of the birds within each line and challenge group were euthanized for tissue collection. At 2 and 6 dpi, lachrymal fluid was collected ...


Biosurveillance Utilizing Engorged Ticks As Phlebotomists For Xenodiagnosis, Charles Elliott Lewis Jan 2018

Biosurveillance Utilizing Engorged Ticks As Phlebotomists For Xenodiagnosis, Charles Elliott Lewis

Graduate Theses and Dissertations

Emerging infectious diseases pose a global threat to both human and animal health. The majority of novel zoonotic pathogens occur along the interface between humans, domestic animals, and wildlife creating complex ecological interactions that can be intricate and difficult to decipher. The availability of a diverse array of methods and techniques of sampling and diagnosing these diseases expands the effectiveness of the surveillance programs needed to enact countermeasures to counteract their effects. The purpose of the research reported here is to investigate the use of ticks as biological samplers for the purpose of antibody-based xenosurveillance. We show that antibody diagnostic ...


Association Between Vitamin D And Metabolic Syndrome In Older Adults, Allison Ann Hedges Jan 2018

Association Between Vitamin D And Metabolic Syndrome In Older Adults, Allison Ann Hedges

Graduate Theses and Dissertations

Recently, low serum concentrations of 25-hydroxyvitamin D [25(OH)D] have been linked to disturbances in glucose metabolism, development of type 2 diabetes, and increased risk of metabolic syndrome (MetS). Moreover, deficiency of vitamin D is now recognized to be highly prevalent in the U.S. and worldwide, impacting between 30% and 50% of the general population. Therefore, the objective of this research study is to examine the associations between serum 25-hyroxyvitamin D and MetS. Data were collected from the Nutritional Interventions for Age-Related Muscular Function and Strength Losses Study. From this cohort, 186 independently living males and females over ...


A Qualitative And Quantitative Examination Of Factors Underlying Safety Climate, Jon Lewis Patrick Judge Jan 2018

A Qualitative And Quantitative Examination Of Factors Underlying Safety Climate, Jon Lewis Patrick Judge

Graduate Theses and Dissertations

The assessment of safety climate in the workplace has been a recurring research topic over the last four decades. Often assessed through the collection of Likert-scaled survey instrument data and subsequent data analysis, previous research studies have indicated that there are potentially a number of latent factors which account for safety climate perceptions of the studied population that may not be revealed through survey data collection. Lacking in the body of research is a mixed-methods approach that can substantiate the level of influence these identified factors have on safety climate perceptions.

The research in this dissertation sought to identify factors ...


Perceptual And Physiologic Analysis Of Dystussia In Amyotrophic Lateral Sclerosis, Stephanie Anne Watts Dec 2017

Perceptual And Physiologic Analysis Of Dystussia In Amyotrophic Lateral Sclerosis, Stephanie Anne Watts

Graduate Theses and Dissertations

Swallowing and cough are two vital functions that are reflexive in nature and are related to each other in terms of shared neural and anatomical space. When a disorder impacts normal and effective swallowing and/or cough, the consequences can be life-threatening. Evaluation and treatment of swallowing and cough disorders can fall under the scope of practice of the speech-language pathologist and speech-language pathologists often are leading professionals. Furthermore, much of the current research on swallowing and cough is spearheaded by speech-language pathologists often working with a multi-disciplinary team. The focus of this dissertation is on the clinical evaluation of ...


Role Of Heat Shock Transcription Factor 1 In Ovarian Cancer Epithelial-Mesenchymal Transition And Drug Sensitivity, Chase David Powell Nov 2017

Role Of Heat Shock Transcription Factor 1 In Ovarian Cancer Epithelial-Mesenchymal Transition And Drug Sensitivity, Chase David Powell

Graduate Theses and Dissertations

The heat shock response (HSR) is a robust cellular reaction to mitigate protein damage from heat and other challenges to the proteome. This protective molecular program in humans is controlled by heat shock transcription factor 1 (HSF1). Activation of HSF1 leads to the induction of an array of cytoprotective genes, many of which code for chaperones. These chaperones, known as heat shock proteins (HSPs), are responsible for maintaining the functional integrity of the proteome. HSPs achieve this by promoting proper folding and assembly of nascent proteins, refolding denatured proteins, and processing for degradation proteins and aggregates which cannot be returned ...