Digital Commons Network^™

The Impact Of The National Breeding Index For Dairy Cows On The Beef Merit Of Their Progeny, Shauna Mulhall

Theses

The expansion of the dairy herd, along with enhanced fertility in dairy cows, and increased adoption of sexed semen technologies, has resulted in a growing number of beef cattle originating from the dairy sector. Breeding programs in dairy cows have been primarily focused on improving fertility and milk production, with limited attention given to progeny intended for beef production. To establish a sustainable dairy and beef sector, enhancing the performance and efficiency of beef calves from dairy herds is crucial. This thesis aims to assess how current breeding strategies in Irish dairy farming impact downstream beef merit. The thesis will …

Improving The Most Gg Model To Predict Environmental Impact And Improve On Farm Grass Growth Prediction, Laeticia Bonnard

Theses

The increasing need for highly productive and eco-friendly agriculture is driving demand for decision-support tools to assist agricultural operators in managing systems more precisely and sustainably. Although grasslands provide a cost-effective option for ruminant production and can offer many environmental benefits (biodiversity, carbon storage etc.), grasslands management is challenging due to the inherent climate and soil sensitivities and their potential negative impact on water quality. In Ireland, the Moorepark Saint Gilles Grass Growth (MoSt GG) model was developed for the dual purposes of research-based simulations and on-farm grass growth prediction for farmers. The objective of this thesis was to improve …

Optima: Optimal Protein For Optimal Ageing, Eunice Ti-Oluwani Olaniyan

Theses

The older adult population is increasing globally, and this is associated with an increased prevalence of chronic diseases. This, together with increased consumer concern regarding the overconsumption of animal proteins, has led to a need to consider alternative dietary strategies for older adults. This study developed novel plant protein blends using combinations of pumpkin, pea ad rice protein isolates, and investigated their amino acid profiles, protein content and bioactive properties to identify optimal blends for functional food formulation. A major objective of this study was to formulate protein-rich products. It was hypothesised that blending multiple sources of plant proteins in …

Envisioning Munster Technological University As A Trauma-Sensitive University, Marie Singleton

Theses

Trauma-informed care works on the assumption that individuals utilizing relevant services have experienced trauma (Palmer, 2020). The trauma-informed approach focuses on providing empathy and compassion to create healing relationships and ensure accessibility for all service users. This approach is aimed at understanding, identifying, and addressing trauma in organisations by making changes to practices, policies, and procedures (Champine et al., 2022). Substance Abuse and Mental Health Services Administration (SAMHSA) (2014:10) states that ‘trauma results from an event, serie s of events, or set of circumstances that is experienced by an individual as physically or emotionally harmful or threatening and that has …

Improving Long-Term Sustainable Profit For Beef Producers And Processors Through Genetic Selection, Stephen Connolly

Theses

The thesis served to quantify the phenotypic performance of animals differing in genetic merit based on the Irish Terminal Breeding Index. The data in the thesis included performance metrics of interest to both the primary producer and the meat processing industry. It is anticipated that the findings of the thesis will instil a level of confidence among primary producers and meat processors whereby the current terminal breeding objective is generating beef cattle with superior carcass performance, and improved farm margins along with a more desirable animal for meat processors. The impact of genetic differences among animals for performance traits on …

Relationships Between Cliff Swallows (Petrochelidon Pyrrhonota) And Feather Coloration, Morphological Characteristics, And Colony Size, Sonja M. Brandt

Master's Theses or Doctor of Nursing Practice

Environmental stressors such as drought and roadways can strongly affect breeding birds. Cliff Swallows (Petrochelidon Pyrrhonota) are aerial insectivores that experience mortality from car collisions, because they often nest and hunt under bridges and road culverts. Individual traits that may convey social information, such as body condition, or feather coloration, might be associated with better coping around cars and other environmental stressors. Few studies have investigated relationships between coloration and other environmental stressors, such as water loss due to drought near the colony and foraging areas. Colony size can be heavily affected by various environmental factors such as water level …

The Physiological And Behavioral Effects Of A Centrally Administered Oxytocin Receptor Antagonist On Maternal Buffering In Infant Guinea Pigs, Kendra A. Carter

Browse all Theses and Dissertations

This study investigates the role of endogenous oxytocin (OT) in maternal buffering of infant stress responses in guinea pigs. Infants received intracerebroventricular infusion of an oxytocin receptor antagonist (OTA) or artificial cerebrospinal fluid (aCSF) immediately before being placed with the mother in a novel environment for 60 minutes. Blood cortisol levels and behavioral responses, including vocalizations and crouching, were measured throughout the testing period. Results indicate only a significant effect of time, with cortisol levels increasing with time spent in the novel environment. Otherwise, no significant differences were observed either physiologically or behaviorally between aCSF and OTA conditions. This study …

Retracing Their Tracks: The Rediscovery And Memorialization Efforts Of The National Orphan Train Project, Joanna Lockwood

Master's Theses or Doctor of Nursing Practice

Between 1854 and 1929, the placement system that became known as the orphan trains in modern scholarship, removed neglected and orphaned children from the dangerous streets of New York City and attempted to place them into homes across America that would benefit their futures. While this charity-run program was well-intentioned, the estimated two hundred fifty thousand children of the orphan trains experienced a mix of encounters upon their placements. Although many homes provided a caring environment for these children, others did not. After years of struggle during their early childhood, numerous children had not only lost their parents and were …

Bacterial Metallophores As Potential Agents In Heavy Metal Bioremediation, Mohammed Ahmed

Electronic Theses and Dissertations

Heavy metal pollution is a significant threat to human health and the environment. Bacteria have evolved diverse mechanisms to adapt to these pollutants, including the secretion of small molecules called metallophores. Bacterial metallophores are metabolites excreted in response to toxic metal stress to protect the bacterial cell. These small molecules have shown versatility in potential applications for the remediation of heavy metals. This research focuses on constructing a library of bacterial metallophores, which will facilitate the assessment of their metal-binding properties when exposed to different metals. The study has two main areas of investigation: Firstly, it involves isolating and characterizing …

Astrocytic Mitochondrial Transfer To Brain Endothelial Cells And Pericytes In Vivo Increases With Aging, Gopal V. Velmurugan, Hemendra J. Vekaria, Samir P. Patel, Patrick G. Sullivan, W. Brad Hubbard

Neurology Faculty Publications

Intercellular mitochondrial transfer (IMT) is an intriguing biological phenomenon where mitochondria are transferred between different cells and notably, cell types. IMT is physiological, occurring in normal conditions, but also is utilized to deliver healthy mitochondria to cells in distress. Transferred mitochondria can be integrated to improve cellular metabolism, and mitochondrial function. Research on the mitochondrial transfer axis between astrocytes and brain capillaries in vivo is limited by the cellular heterogeneity of the neurovascular unit. To this end, we developed an inducible mouse model that expresses mitochondrial Dendra2 only in astrocytes and then isolated brain capillaries to remove all intact astrocytes. …

Detecting Cognitive Decline In High-Functioning Older Adults: The Relationship Between Subjective Cognitive Concerns, Frequency Of High Neuropsychological Test Scores, And The Frontoparietal Control Network, Justin E. Karr, Jonathan G. Hakun, Daniel B. Elbich, Cristina N. Pinheiro, Frederick A. Schmitt

Neurology Faculty Publications

Objective: Neuropsychologists have difficulty detecting cognitive decline in high-functioning older adults because greater neurological change must occur before cognitive performances are low enough to indicate decline or impairment. For high-functioning older adults, early neurological changes may correspond with subjective cognitive concerns and an absence of high scores. This study compared high- functioning older adults with and without subjective cognitive concerns, hypothesizing those with cognitive concerns would have fewer high scores on neuropsychological testing and lower frontoparietal network volume, thickness, and connectivity.

Method: Participants had high estimated premorbid functioning (e.g., estimated intelligence ≥75th percentile or college-educated) and were divided based on …

Using Digital Pathology To Analyze The Murine Cerebrovasculature, Dana M. Niedowicz, Jenna L. Gollihue, Erica M. Weekman, Panhavuth Phe, Donna M. Wilcock, Christopher M. Norris, Peter T. Nelson

Neurology Faculty Publications

Research on the cerebrovasculature may provide insights into brain health and disease. Immunohistochemical staining is one way to visualize blood vessels, and digital pathology has the potential to revolutionize the measurement of blood vessel parameters. These tools provide opportunities for translational mouse model research. However, mouse brain tissue presents a formidable set of technical challenges, including potentially high background staining and crossreactivity of endogenous IgG. Formalin-fixed paraffin-embedded (FFPE) and fixed frozen sections, both of which are widely used, may require different methods. In this study, we optimized blood vessel staining in mouse brain tissue, testing both FFPE and frozen fixed …

Estrogen’S Sex-Specific Effects On Ischemic Cell Death And Estrogen Receptor Mrna Expression In Rat Cortical Organotypic Explants, Amanda L. Trout, Christopher J. Mclouth, Jenna Westberry, Tomoko Sengoku, Melinda E. Wilson

Neurology Faculty Publications

Estrogens, such as the biologically active 17-β estradiol (E2), regulate not only reproductive behaviors in adults, but also influence neurodevelopment and neuroprotection in both females and males. E2, contingent upon the timing and concentration of the therapy, is neuroprotective in female and male rodent models of stroke. In Vivo studies suggest that E2 may partially mediate this neuroprotection, particularly in the cortex, via ERα. In Vitro studies, utilizing a chemically induced ischemic injury in cortical explants from both sexes, suggest that ERα or ERβ signaling is needed to mediate the E2 protection. Since we know that the timing and concentration …

Indigenous Knowledge As Federal Policy, Sara C. Bronin

GW Law Faculty Publications & Other Works

In 2024, the federal historic preservation agency unanimously voted to adopt a policy supporting the full recognition and integration of Indigenous Knowledge in the preservation field. Indigenous Knowledge can be described roughly as the body of observations, knowledge, practices, and beliefs developed by Indigenous Peoples through their interaction and experience with the environment. The policy acknowledges that Indigenous Knowledge is valid, sound, and self-supporting, and that designated representatives of Indian Tribes, Alaska Native villages, and Native Hawaiian organizations should be recognized as subject-matter experts with regard to properties of religious and cultural significance to them. Indigenous Knowledge has not been …

2024-2025 Lynn University Academic Catalog, Lynn University

Academic Catalogs

The 2024-2025 Academic Catalog initially published as a web-only document.

This is a PDF version, created by the Department of Marketing and Communication.

A Case Of One Step Forward And Two Steps Back? An Examination Of Herbicide-Resistant Weed Management Using A Simple Agroecosystem Dynamics Model, Srinadh Kodali, Chris Flores-Lopez, Isabelle Lobdell, Branson Kim, James C. Russell, Lane Michna, Benjamin L. Turner

Mechanical & Aerospace Engineering Faculty Publications

Global herbicide-resistant weed populations continue rising due to selection pressures exerted by herbicides. Despite this, herbicides continue to be farmers’ preferred weed-control method due to cost and efficiency relative to physical or biological methods. However, weeds developing resistance to herbicides not only challenges crop production but also threatens ecosystem services by disrupting biodiversity, reducing soil health, and impacting water quality. Our objective was to develop a simulation model that captures the feedback between weed population dynamics, agricultural management, profitability, and farmer decision-making processes that interact in unique ways to reinforce herbicide resistance in weeds. After calibration to observed data and …

Changes In Primary Care Availability In Appalachia, Whitney Beckett

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

The Affordable Care Act (ACA) was a groundbreaking moment in the United States healthcare system. It affected many different aspects of the system, including access to primary care professionals. Primary care professionals provide a key role in American’s health, especially when it comes to preventative care. With one-third of Americans experiencing barriers to such access, a solution is desperately needed to increase said access. These barriers are especially profound in low-income, underserved areas such as the Appalachian regions of Georgia, Kentucky, Tennessee, and West Virginia. The ACA attempted to increase access via Medicaid expansion; however, not all States expanded their …

Empirical Insights Into Survivorship Care: A Cross-Sectional Study Of Coc Accredited Hospitals In Kentucky, Amanda M. Beckett

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

ABSTRACT

Background:

Cancer survivorship care programs play a vital role in supporting cancer survivors and improving their quality of life. Understanding the landscape of survivorship and the potential barriers is key to optimizing care delivery.

Methods:

The primary purpose of this cross-sectional study was to explore existing cancer survivorship care programs offered by Commission on Cancer (CoC) accredited hospitals in Kentucky. Data from the Markey Cancer Affiliate Network (MCCAN) from 2022 through 2023 was analyzed. Variables included hospital characteristics such as rural code, types of survivorship services offered, and reported barriers to these services.

Results:

Analysis of n=19 CoC facilities …

Environmental Justice In West Louisville, Ky, Ashley Wright

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

It is evident that West Louisville and Rubbertown are experiencing environmental exposures and related health impacts. It is important for environmental justice (EJ) areas like West Louisville and Rubbertown to gain increased awareness, due to EJ areas commonly being overlooked and forgotten about because of unjust treatment and lack of involvement. Furthermore, all of the data used for this project was publicly accessible. Community residents and the general public can access these data sources to identify which facilities are emitting toxins, as well as specific hazardous substances that are being released, the location of hazardous sites, cleanup status, and more. …

Improving Black Maternal Outcomes In Christian County, Ky: A Social Marketing Approach To Perinatal Provider Change, Ariel A. Arthur

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

Compared to other states in the country, Kentucky has historically poor population health outcomes. While the statewide maternal mortality rate is 16.1 per 100,000 live births, this statistic belies the stark racial disparities that exist. In 2018, the pregnancy-related death rate for Black women was 40.2 per 100,000 live births compared to 13.1 for White women. This pattern is persistent even after controlling for socioeconomic status, prenatal care, and other protective factors. Research shows that institutional and interpersonal racism when receiving obstetric care contributes to poor childbirth and postpartum outcomes for Black women. Additionally, geography and rural status may compound …

Implementation Of A Postpartum Depression Program In A Rural Kentucky County, Abby Cecil

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

This paper aims to describe the process of implementing a Postpartum Depression (PPD) prevention program in low-income women residing in rural communities. The paper describes the process of recruiting women in this population, where and how the program will be integrated into an existing clinic, and how the program will be sustained. PPD is a significant global public health problem that can be prevented and treated. The ROSE program (Reach Out, Stay Strong, Essentials for new mothers) is a series of classes that provide informational and social support to prevent PPD. This evidence-based program has been previously successful in reducing …

Increasing Hpv Vaccination In Two Appalachian Counties, Autumn Rice

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

In response to the Funding Opportunity Announcement (FOA), the evidence-based Making Effective HPV Vaccine Recommendations training program will be implemented in the Southeast Kentucky AHEC region over the course of three years. The implementation of the Making Effective HPV Vaccine Recommendations program has three specific aims:

Aim 1: Effectively implement and deliver the Making Effective HPV Vaccine Recommendations program to immunization providers in the Southeast Kentucky AHEC region

Aim 2: Increase provider self-efficacy for making strong recommendations for HPV routinely

Aim 3: Increase the number of recommendations for the HPV vaccine among adolescents of Bell and Harlan Counties in Kentucky …

Child Language And Happiness Behaviors: Evaluating The Effects Of Caregiver Coaching, Ashlen Grubbs

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

Caregivers of young children who have or are at risk for disabilities may struggle supporting their child’s language development. This study used a tailored rapid coaching intervention to teach a caregiver different naturalistic language interventions that can be used with their child during play. Evidence-based naturalistic skills for increasing child communication were chosen to teach the caregiver based on baseline levels of skills. The purpose of this study was to evaluate the effectiveness of a tailored RCI (training and coaching) with caregivers of children with developmental disabilities. Like other studies, this study involved evaluating child-level communication but extended child measures …

Supporting Children’S Eating Behavior In A Preschool Classroom, Olajumoke Leshi

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

Food selectivity, commonly observed in young children, has a significant effect on their health outcomes, and this poses a major challenge for parents and caregivers. This proposed study aims to investigate the effectiveness of a teaching package comprising prompting, shaping, and reinforcement strategies in enhancing exploratory eating behaviors among preschool children displaying food selectivity in a classroom setting. The study seeks to answer the research question: does the delivery of a teaching package consisting of prompting, shaping, and reinforcement result in an increase in exploratory eating behaviors (touch, smell, taste) by young children displaying food selectivity? This study will use …

Investigation Of The Apoptotic Effect Of Cardamom Oil On Laryngeal Cancer Cell Line (A Non-Randomized In Vitro Study), Sara Abdelwahed, Mariam Zaki

Dentistry

Aim: To evaluate the apoptotic effect of Cardamom oil on laryngeal cancer cells in comparison to Doxorubicin which could give insight for a new approach of therapy for Head and Neck cancer. Methods: A subcultured Hep-2 cell line was placed into five study groups: a control group, a group exposed to Cardamom oil for 24 hours, another group subjected to Cardamom oil for 48 hours and the other two groups treated with DOX for the same time intervals. The percentage of cell viability was measured using MTT assay. Apoptosis analysis was assessed using Flow Cytometry represented by dot plots. Apoptosis …

Physicochemical Properties Of Ah Plus Bioceramic Sealer, Bio-C Sealer, And Adseal Root Canal Sealer, Shehabeldin Mohamed Saber Prof.Dr.

Dentistry

Background: The aim of this study was to evaluate the physicochemical properties of two newly introduced premixed calcium silicate-based root canal sealers (AH Plus Bioceramic Sealer and Bio-C Sealer) compared to a resin-based root canal sealer (ADseal root canal sealer). Methods: Solubility, pH analysis, calcium ion release, and film thickness of each sealer were evaluated following ISO guidelines. The data were examined using the two-way ANOVA test. Furthermore, X-ray diffraction (XRD) examination was performed to investigate the crystalline phase of each type of sealer. X-ray fluorescence (XRF) analysis was done for the chemical elemental analysis of each sealer. Results: The …

Comparison Of Different Dental Restorative Materials On Orthodontic Brackets Performance In Class V Lesions. (In Vitro Study), Shadwa Kabil, Mohamed Zayed, Shymaa Rhoym

Dentistry

No abstract provided.

Comparison Of Different Dental Restorative Materials On Orthodontic Brackets Performance In Class V Lesions. (In Vitro Study), Shadwa Kabil, Mohamed Mostafa Zayed, Shaimaa Rhoym

Dentistry

No abstract provided.

Adaptation Of Conventional Versus Digitally Fabricated Auricular Prosthesis: A Randomized Clinical Trial, Sara Fikry, Fatma Mohei El Mogei Dr, Mohamed El Khashab Prof, Amal Rekabi Prof

Dentistry

Aim: This study aimed to compare digitally fabricated auricular prostheses to conventional prostheses, regarding adaptation to defect site in patients with auricular defects.

Subjects and methods: Fifteen patients were recruited for auricular prosthetic reconstruction. Endosseous implants were placed, then patients were assigned into two groups. In control group, ear models were processed on stone cast obtained from conventional impression. In intervention group, computed tomography and optical scanning were combined to obtain a virtual model with digital analogues over which ear models were designed and printed. Ear models of both groups were seated, and adaptation was measured on the patient using …

A Facile Auto-Combustion Pathway For Creating Mn- And Fe-Doped Tio2 Nanostructures And Their Photocatalytic Activity, Gharieb Meselhy

Dentistry

Using a combination of two fuels, an auto-combustion method was used to synthesize pure TiO2 and doped TiO2 with different concentrations of iron(III) (Fe) and manganese(II) (Mn) (1, 3, 5, and 7 mol%). The as-prepared materials were characterized using different techniques, including thermogravimetric analysis (TGA), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FE-SEM), and high-resolution transmission electron microscopy (HR-TEM). The XRD results showed that both pure TiO2 and all doped TiO2 samples had the anatase phase, indicating the crystalline nature of all the as-prepared nanomaterials. Crystal violet decolorization under UV irradiation was used to …