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Corn Grain Alternatives And Coated Versus Non-Coated Trenbolone Acetate And Estradiol Impants For Feedlot Finishing Animals: Influence On Growth Performance, Carcass Characteristics, Efficiency Of Dietary Net Energy Utilization, Beef Production Per Hectare And Digestiblilty, Elizabeth Buckhaus

Electronic Theses and Dissertations

Corn grain alternatives are often not used in finishing rations due to reduced caloric densities and reluctance to deviate from traditional methods. Along with optimum nutrition, cattle need to have proper implant strategies to reap maximum returns on investment. Two studies were conducted to evaluate the effects of corn grain alternatives and implant type on feedlot finishing cattle. The objective of the first study was to determine the influence of corn silage (15% or 30% dry matter inclusion), and terminal implant type (coated or non-coated) containing equal hormonal doses on animal growth performance, apparent total tract digestibility, beef production per …

Recreational Female Crossfit Athletes And Low Energy Availability, Alison Kuch

Electronic Theses and Dissertations

CrossFit is a demanding sport in which athletes perform constantly varied, functional movements at a high intensity, therefore requiring an adequate energy availability to avoid negative health and performance consequences. The purpose of this study was to assess risk of low energy availability (low EA) (phase 1) among recreational, female CrossFit athletes and measure and calculate energy availability using a 7-day dietary to measure energy intake (EI) and exercise energy expenditure (ExEE) (phase 2). In phase 1, using the LEAF-Q (Low Energy Availability in Females Questionnaire), 49% of survey respondents (n=149) were found to be at risk of low EA. …

Evaluating And Predicting The Risk Of Algal Blooms In A Freshwater Lake Through A 4-Dimensional Approach: A Case Study On Lake Mitchell, Sumit Kumar Ghosh

Electronic Theses and Dissertations

Excessive algal growth in freshwater lakes can negatively impact ecosystems, recreation, and human health. Though algae are a natural part of freshwater ecosystems, elevated nutrient loading from anthropogenic and natural sources can lead to algal blooms. Both algae and blue-green algae (BGA) are responsible for algal blooms; however, BGA (cyanobacteria) is more dangerous. The first objective of this research was to prepare a conceptual model to understand how various environmental variables affect algae. This conceptual model was used to choose the environmental variables that help increase or decrease algae in the water environment. The second objective was to develop empirical …

Changes In Pregnancy - Associated Glycoproteins Associated With Fetal Age, Postpartum Interval And Evaluation Of A Chute-Side Lateral Flow Assay, Adalaide C. Kline

Electronic Theses and Dissertations

Transrectal ultrasonography is known as the gold standard for pregnancy detection but requires costly equipment and technical skill. Access to a cheaper and more user-friendly method with similar accuracy to transrectal ultrasonography would be beneficial to individual cattle producers and to the cattle industry as a whole. Pregnancy diagnosis by detection of pregnancy-associated glycoproteins (PAGs) has the ability to accurately determine pregnancy in ruminants, however, usually requires specialized equipment for the assay. Pregnancy-associated glycoprotein pregnancy tests are gaining in popularity due to their ease of use and the unique feature of not requiring specialized training. Recently, a new lateral flow …

Accurate Quantitation Of Hexavalent Chromium For Reference Standard Certification And Quality Control Testing Using Speciated Isotope Dilution Mass Spectrometry, James E. Henderson

Electronic Theses and Dissertations

The ability to perform accurate, repeatable, and defensible elemental and molecular speciated analysis is immensely significant for measurements that support human health, environmental science, and industry. This is especially true since trivalent chromium [Cr(III)] is necessary for proper nutrition, while hexavalent chromium [Cr(VI)] is extremely toxic, genotoxic, and carcinogenic. The main challenges associated with speciated analysis are related to reactive species that are continuously transformed or converted to other species during sample processing. Accurate determination of Cr(III) and Cr(VI) species require a method that is capable of monitoring and correcting for interconversion, bias, and instrumental error. Traditional quantitative methods, such …

Impact Of A Nicu Bedside Reading Initiative On Self-Reported Maternal Stress And Mother-Infant Attachment, Lauren Lorenzi Quigley

Electronic Theses and Dissertations

Premature birth and a corresponding hospitalization in the Neonatal Intensive Care Unit (NICU) presents infants and their families with an array of medical and psychosocial stressors that have the potential to impact neurodevelopment and social-emotional functioning in both the long-and short-term. Research has demonstrated the importance of family-integrated, developmental care interventions and a need for supportive environmental and sensory stimulation for the infant to optimize developmental, social, and emotional outcomes. Engaging parents in bedside care that fosters sensory development, supports cognitive and language skills, and lays a strong foundation for bonding and attachment can be monumental for the dyad. Implementation …

The Experience Of Friendship Between Individuals With And Without An Intellectual Disability., Rebecca Clark

Electronic Theses and Dissertations

Practitioners and researchers are concerned about the limited social inclusion and social networks of individuals with an Intellectual Disability (ID) (Amado, 2014; Bigby & Craig, 2017; Hall, 2010; Hardman & Clark, 2006; Knox & Hickson, 2001; McConkey & Collins, 2010; Tipton, 2011). Friendships between those with and without an ID are viewed as opportunities for greater inclusiveness with and connection to the mainstream society (Amado, 2014; Bigby & Craig, 2017; McConkey & Collins, 2010). However, little is known about the development of friendships between those with and without an ID. The purpose of this study was to fully explore the …

Imparting 3d Representations To Artificial Intelligence For A Full Assessment Of Pressure Injuries., Sofia Zahia

Electronic Theses and Dissertations

During recent decades, researches have shown great interest to machine learning techniques in order to extract meaningful information from the large amount of data being collected each day. Especially in the medical field, images play a significant role in the detection of several health issues. Hence, medical image analysis remarkably participates in the diagnosis process and it is considered a suitable environment to interact with the technology of intelligent systems. Deep Learning (DL) has recently captured the interest of researchers as it has proven to be efficient in detecting underlying features in the data and outperformed the classical machine learning …

The Green House Nursing Home Model: The Gh Elements And Their Impact On Quality Of Care In Nursing Homes., Deborah Kaminka Niyongabo

Electronic Theses and Dissertations

Nursing homes (NHs) have been described as hospital-like facilities where residents are more likely to experience isolation or abuse. The Green House (GH) model is a type of culture change which focuses on deinstitutionalizing traditional NHs to provide better quality of care and quality of life to NH residents. The two main objectives of this study are: to describe the GH model and its elements and to identify which GH elements impact the quality of care. This study also seeks to identify organizational theories used in the GH analysis. The next objective is to analyze the impact of the GH …

Assaults On Law Enforcement Officers: A Spatial And Theoretical Analysis Through Social Disorganization., Brian Keith Simpkins

Electronic Theses and Dissertations

The purpose of the present study was to gain a better understanding of assaults on law enforcement officers to identify correlations and spatial concentrations related to theoretical constructs of social disorganization. The present study was based on official assault on law enforcement officer data from a major metropolitan area within a southeastern state for the years 2010-2019. In addition to bivariate and multivariate statistical testing (e.g., Pearson correlation coefficient and multiple linear regression), multiple spatial analyses were utilized to understand the statistical significance, visualize results, and compare to previous theoretical explanations of crime concentration. The findings revealed that assaults on …

Modified-Half-Normal Distribution And Different Methods To Estimate Average Treatment Effect., Jingchao Sun

Electronic Theses and Dissertations

This dissertation consists of three projects related to Modified-Half-Normal distribution and causal inference. In my first project, a new distribution called Modified-Half-Normal distribution was introduced. I explored a few of its distributional properties, the procedures for generating random samples based on Bayesian approaches, and the parameter estimation based on the method of moments. The second project deals with the problem of selection bias of average treatment effect (ATE) if we use the observational data. I combined the propensity score based inverse probability of treatment weighting (IPTW) method and the directed acyclic graph (DAG) to solve this problem. The third project …

Evaluating The Effects Of Pcbs In Non-Alcoholic Fatty Liver Disease & Diabetes And The Role Of Ahr In Regulating The Hepatic Proteome And Lipid Metabolism., Jian Jin

Electronic Theses and Dissertations

Polychlorinated biphenyls (PCBs) are persistent organic pollutants associated with non-alcoholic fatty liver disease (NAFLD) and diabetes. Based on their ability to activate the aryl hydrocarbon receptor (AhR), PCBs are subdivided into two classes: dioxin-like (DL) and non- dioxin-like (NDL) PCBs. This study not only evaluated the chronic effect of DL PCBs (PCB126), NDL PCBs (Aroclor1260 mainly contains NDL), and the DL/NDL PCB mixture (PCB126/Aroclor1260 mixture) on liver, but also explored the acute hepatic effects of DL PCB and potential mechanisms in NAFLD and the role of AhR in regulating hepatic proteome and lipid metabolism, and whether the process independent of …

Inclusion Of Classified Staff In The Implementation Of Positive Behavior Interventions And Supports: A District Case Study., Devon M. Roberts

Electronic Theses and Dissertations

This qualitative case study examined the current use of Positive Behavior Interventions and Supports (PBIS) within a large school district and how that district includes classified staff within the implementation process. This study utilized information from interviews and focus groups of district leaders, school leaders, and classified staff to evaluate their perspectives on the daily use of PBIS, specifically how classified staff are included in all aspects of the initiative. Using the Normalization Process Theory (NPT) as a theoretical framework, this study sought to make sense of how complex organizational initiatives are intertwined and become embedded into the normal practices …

The Effects Of Whole Life, Low Dose Cadmium Exposure On High Fat Diet-Induced Nonalcoholic Fatty Liver Disease And The Role Of Zinc., Jamie Lynn Young

Electronic Theses and Dissertations

Nonalcoholic fatty liver disease (NAFLD) is a major global public health concern affecting more than 25% of the world’s population. Although obesity is a major risk factor for NAFLD, it cannot account for many cases, indicating the importance of other factors such as sex and environmental exposures. Cadmium exposure is implicated in the development of NAFLD; however, the influence of early-life, in utero cadmium exposure on the development of diet-induced NAFLD is poorly understood. Therefore, we developed an in vivo, multiple-hit model to study the effect of whole-life, low-dose cadmium exposure on high fat diet (HFD)-induced NAFLD. Additionally, we …

Aspects Of Causal Inference., John A. Craycroft

Electronic Theses and Dissertations

Observational studies differ from experimental studies in that assignment of subjects to treatments is not randomized but rather occurs due to natural mechanisms, which are usually hidden from researchers. Yet objectives of the two studies are frequently the same: identify the causal – rather than merely associational – relationship between some treatment or exposure and an outcome. The statistical issues that arise in properly analyzing observational data for this goal are numerous and fascinating, and these issues are encompassed in the domain of causal inference. The research presented in this dissertation explores several distinct aspects of causal inference. This dissertation …

Characterization Of Adiposity And Inflammation Genetic Pleiotropy Underlying Cardiovascular Risk Factors In Hispanics., Mohammad Yaser (Anwar)

Electronic Theses and Dissertations

The observed overlap between genetic variants associated with both adiposity and inflammatory markers suggests that changes in both adiposity and inflammation could be partially mediated by common pathways. The pervasive but sparsely characterized “pleiotropic” genetic variants associated with both adiposity and inflammation have been hypothesized to provide insight into the shared biology. This study explored and characterized the genetic pleiotropy underpinning adiposity and inflammation using genetic and phenotypic observations from the Cameron County Hispanic Cohort (CCHC). A total of 3,313 samples and >9 million single nucleotide polymorphisms (SNPs) were examined in this study. Mixed model genome-wide association studies (GWAS) were …

Assessing Nurse Practitioners' Knowledge And Clinical Practice With Regard To The Oral-Systemic Link, Angela Haynes

Electronic Theses and Dissertations

Nurse Practitioners (NPs) comprise a significant portion of the U.S. primary care workforce and play an essential role in patients' health awareness, prevention strategies, disease management, and in providing appropriate provider referrals. Nurse Practitioners receive education on the oral-systemic connection, yet there have been limited studies on the clinical practice of NPs assessing the oral cavity to evaluate the condition of the teeth and the oral tissues. The purpose of this study was to explore the nurse practitioners’ knowledge and practice habits of assessing the oral cavity for diseases or abnormalities in the mouth that can, in turn, affect overall …

Beating The Odds: Perseverance And Its Influence On Male Students’ Perceptions In Overcoming Generational Poverty, Grady C. Bailey Jr

Electronic Theses and Dissertations

This phenomenological study examined the perceived influences that male graduates from Title I high schools attribute to their success. During the last 30 years the poverty gap has not narrowed and in some cases it has increased. This study hoped to provide evidence of supports needed by looking at males who overcame generational poverty. This study included qualitative data collection from interviews of 15 male participants. Nine themes emerged in the findings of perceived influences by these participants. The nine themes identified where 1) Success has two components; internal and external, 2) School personnel and programs guided success, 3) Change …

A Qualitative Analysis Of End-Of-Life Healthcare In Tennessee: Politics, Principles, And Perceptions, Erin Mauck

Electronic Theses and Dissertations

The unprecedented growth of the aging population in Tennessee is a significant demographic trend that highlights the necessity for healthcare policy that tackles end-of-life issues. This study examined the perceived quality of end-of-life healthcare in Tennessee, areas that are in need of improvement, policies that have the potential to influence improvements, and the role of politics in end-of-life healthcare policy. It also assessed the support for end-of-life healthcare policy that would advance quality of care and expand end-of-life choices for Tennesseans, while evaluating the policy-making process that legislators employ.

For this study, data were collected using semi-structured, in-depth interviews with …

The Lived Experience Of Obesity, Spirituality, And Health Behaviors In African American Women, Andrea S. Poynter

Electronic Theses and Dissertations

Obesity is one of the fastest-growing health concerns impacting all racial, ethnic, gender, and socioeconomic groups in the United States of America. More than one-third of the U.S. adult population is classified as being obese (Obesity Society, 2014). Novak and Brownell (2012) identified that “obesity rates are consistently rising higher each year than in previous years” (p. 2345). Obesity has reached epidemic proportions in all races and genders within the US with African American women comprising a majority of those impacted by this chronic health condition. Obesity rates are well documented within the literature but what is lacking is the …

Teacher Retention In Secure Residential Settings, Daniel Froemel

Electronic Theses and Dissertations

A phenomenological study was conducted to identify the factors associated with job retention among teachers in secure residential treatment centers in Tennessee. Central to this investigation was the exploration of how residential teachers perceive they are supported in their position, how teachers in residential settings perceive the culture of the facility, and what factors are associated with teacher retention in secure residential settings. Through a series of fifteen interviews, common themes emerged from the coding that provided insight into these questions.

Teachers who had worked in residential settings for more than five years seemed to have very strong internal belief …

Supporting Postnatal Women With Opioid Use Disorder Treated With Medication Avoidance Therapy, Lea Ann Quave

Electronic Theses and Dissertations

Recent data in 28 U.S. states revealed that opioid use during pregnancy had increased by four times since 2014, going from 1.5 to 6.5 per 1,000 admissions. The use of opioids during pregnancy is dangerous to the mother and developing fetus, greatly increasing the risk for maternal death, miscarriage, and premature birth. The increase in the number of women with opioid abuse disorder (OUD) is reflected by a fivefold increase of infants born with neonatal abstinence syndrome (NAS), a withdrawal syndrome from opioids. Corresponding with U.S. trends, a community hospital in the Texas Gulf Coast region has seen an increase …

Curricular Influence On Professional Formation In Physical Therapy Students, Chad W. Jackson

Electronic Theses and Dissertations

Professionalism is needed from each healthcare professional to meet the needs of patients, society, and the expectation that the profession has for its members. Professionalism comprises many attributes and is developed explicitly and implicitly over time through a variety of influential factors. Professional formation education should be an intentional emphasis in any professional program. However, in the academic preparation of healthcare professionals, including physical therapists, a lack of consistency exists in professionalism curricula. It does not appear there are published studies that have specifically compared the effect of curricular approaches in physical therapy education on students’ professional formation. The purpose …

What Interventions Should Be Utilized With Alzheimer's Patients To Increase Quality Of Life?, Laci Bach

Electronic Theses and Dissertations

Alzheimer’s is a devastating disease that affects nearly 50 million people worldwide and will continue to increase exponentially with the aging of the population. The current work is an attempt to identify the needs of a subset of Alzheimer’s patient caregivers who have placed their family member to help identify the specific psychosocial needs the family member may have. This will help agency staff to tailor specific plans in their interactions with both the patient and family member to help reduce identified caregiver burden. Due to the COVID-19 restrictions only a limited number of family members (n=5) were contacted and …

Black Male Student Success In Historically Black Colleges And Universities (Hbcus), Cherise A. Johnson

Electronic Theses and Dissertations

When compared to their peer counterparts, Black male students have a lower college attrition rate. Universities and higher education institutions explore ways to increase the retention and graduation rates for Black male students persisting toward college graduation, and all Black male students need to be included in the dialogue. This qualitative instrumental collective case study explored first-generation Black male college students’ lived experiences that contributed to their persistence toward graduation from Historically Black Colleges and Universities (HBCUs) framed within Tinto’s retention theory (1993). Snowball sampling was used to identify eight first-generation Black male students that were in good academic standing …

Perceptions Of Special Education Supports By School Administrators, Eric P. Oxford

Electronic Theses and Dissertations

This research study analyzed the perceptions of special education supports by school administrators. Specifically, this research discussed comparative findings of perceptions of special education supports between building principals and building-based special education team chairpersons in one Massachusetts public school district. The findings are grounded in the district’s inclusive philosophy and its capability to ensure that all students are provided educational opportunities in the least restrictive educational environment. The problem studied was that many students with disabilities who are unable to find academic success within an inclusive academic environment are typically transitioned into a more restrictive—or substantially separate—alternative education setting. It …

An Economic Analysis Of Using Retired Vessels To Create Artificial Reefs In Costa Rica, Josué González

Electronic Theses and Dissertations

ABSTRACT

The Republic of Costa Rica is a Central American country with only 0.03% of the world’s landmass, but 5% of the world’s biodiversity, making it a leading ecotourism destination. Ecotourism is one of the main sources of revenue for the country, but the degradation of coastal reefs has resulted in a significant loss of financial income for developing areas. As a result, many of these areas are searching for methods to revert the degradation of coral reefs.

Artificial reefs play an important ecological role in marine ecosystems due to their complexity and size. They help in the development of …

Analyzing The Longevity Of Sperm Within The Female Japanese Quail By Assessing Sperm Penetration Of The Perivitelline Layer Under Optimal And Suboptimal Conditions., Garret G. Ashabranner, Joey L. Bray

Electronic Theses and Dissertations

After mating, birds have the ability to store semen within the female reproductive tract. The sperm storage tubules will store and subsequently release semen to travel up the oviduct. Sperm cells that make the trek up the oviduct have a chance to fertilize the ovum. These sperm cells will bind to the perivitelline layer of the ovum and hydrolyze a hole in the perivitelline layer, where it has the possibility to fertilize the female sex cell. Analyzing the number of penetration points on the perivitelline layer is an effective way to analyze reproductive efficiency. Many environmental factor has its effect …

Isolation, Structure Elucidation, And Synthesis Of Natural Products From Marine Cyanobacteria, Keren Solomon

Electronic Theses and Dissertations

This thesis describes the isolation, structure elucidation, and synthesis of natural products from marine cyanobacteria. A crude extract from a cyanobacterium collected in Curacao showed selective affinity for the dopamine D₅ receptor in a screen against a panel of CNS receptors. Due to the high similarity of the D₅ and D₁ receptor, to date there are no known ligands that differentiate them. Attempts to purify the compound responsible for this affinity led to the isolation of the known compound caylobolide A. A second extract from a cyanobacterium collected in Panama underwent bioassay-guided fractionation and yielded the novel …

Analyzing The Management Practices Of East Texas Beef Cattle Producers, Hiliary Cheyenne Swor

Electronic Theses and Dissertations

A survey of East Texas beef cattle producers was designed to evaluate the management practices that were prevalent in the area. Demographic and cattle operation data from 103 respondents were analyzed using SPSS (Version 25; Chicago, IL). This electronic-based survey was distributed through Qualtrics. Respondents were located in Angelina, Nacogdoches, or Cherokee county. Most producers (38.8%) had a Bachelor’s degree. A negative correlation was established between castration method and weaning weight (p = - 0.204). Calves were weaned 50 pounds heavier when band or surgically castrated. Females were less likely to castrate their calves or utilize a mineral program. Approximately, …