Digital Commons Network^™

Educational, Financial, And Social Needs Of Families Of Children With Multiple Disabilities In Saudi Arabia., Mohammed Abdulrahman Alkohaiz

Electronic Theses and Dissertations

Studies on the needs of families of children with multiple disabilities are few and limited, and none of these studies have been conducted in the Arab world, in general, nor in Saudi Arabia, in particular. Even though many families suffer from problems that affect their needs and the needs of their children with disabilities, social work research in the Arab world have not focused on the families and their needs. The information collected from such research can help in developing new and superior services to help children with multiple disabilities and their families. Thus, the present study will contribute to …

An Assessment Of The Disaster Preparedness Knowledge Of Emergency Medical Services Providers In Hajj Of 2016., Ahmed Meaiwedh Al-Otaibi

Electronic Theses and Dissertations

Objectives: 1) Assess knowledge regarding disaster preparedness for mass gathering among SRC-EMS providers during the Hajj 2016 2) Explore the relationship between the demographic variables and knowledge about disaster preparedness among SRC-EMS providers during the Hajj 2016 3) Explore the sources of knowledge for SRC-EMS providers about disaster preparedness. Method: The data collection for this study was a cross-sectional survey using an online Qualtrics survey. It was convenience sample of 1650 respondents. For the analyses descriptive statistics was used, one-way ANOVA and Bonferroni correction for multiple comparisons tests, multiple regression analyses, and Pearson’s product coefficients. Results: The main findings in …

Characterizing The Virulence Factor Yape In Yersinia Pestis., Tiva Templeton Vancleave

Electronic Theses and Dissertations

Yersinia pestis is the causative agent of bubonic plague and is primarily transmitted by fleas. Upon infection, the bacteria rapidly travel to the regional lymph nodes causing inflammation and cellulitis in these tissues (referred to as buboes). Two outer membrane proteins, YapE and Pla, have been implicated to have roles in dissemination to the lymph nodes. Their adhesive properties have shown that they are able to interact with host macrophages thereby increasing their ability to disseminate to regional lymph nodes. More recently, we have shown that YapE is cleaved by another virulence factor important for lymph node colonization, Pla, to …

Effect Of Porcelain Thickness And Translucency On The Final Shade Of Ips E.Max Cad Overlaying A Dark Substrate., Peter F. Alena

Electronic Theses and Dissertations

IPS e.max is a very esthetic lithium disilicate used in dental ceramics. Unfortunately, it can unintentionally change color after cementation with resin cements. The purpose of this study is to better understand how combining thickness and translucency affects the post-cementation shade of IPS e.max CAD overlaying a dark substrate, thereby enabling clinicians to choose more appropriate techniques and materials. IPS e.max CADs (A1 shade) had either a low translucency (LT) or high translucency (HT), and cut with 0.3mm, 0.5mm, and 1.0mm thicknesses. Each sample overlaid a resin cement and dark substrate, a spectrophotometer helped derive the color difference (ΔE*ab), and …

Constructs Of Collaboration : A Multi-Case Embedded Study Of A Community-Wide Partnership For School-Age Youth., Charles Curtis Davis Jr.

Electronic Theses and Dissertations

Observing the efficacy of school-community partnerships has historically been a challenge for researchers. This study seeks to investigate a city-wide partnership between the community and local educational agency through the lens of the cross-sector collaboration theoretical framework. The three components of the theoretical framework which will guide this study are observing the antecedent conditions present in collaboration, the processual dimensions of collaborations and lastly making sense of the perceived public value created by collaboration. By utilizing a multi-case embedded case study design, this research seeks to analyze the bounded case of the CARDS partnership to determine the reasons for choosing …

A Model To Study The Effects Of Whole Life Chronic Exposure To Arsenic Or Cadmium On The Development Of Adult Metabolic Syndrome : Initial Characterization Of Hepatic Changes., Jamie L. Young

Electronic Theses and Dissertations

Metabolic syndrome (MetS) is a group of diseases affecting < 30% of adults. Although obesity is a major risk for the development of MetS, it does not account for all cases, suggesting contribution of other risk factors. We hypothesized that early life exposure to arsenic (As) or cadmium (Cd) may represent such a risk. The purpose of this study was to characterize a model to discern the effects of early life exposures to Cd and As on high fat diet (HFD)-induced MetS. Adult C57BL/6J mice were exposed to control or metals containing drinking water. Pregnant dams and offspring were continuously exposed to the same toxicants as their parents. At weaning, offspring were fed LFD or HFD and sacrificed 10 or 24 weeks later. Metal exposure caused time- and sex-dependent alterations in HFD-induced variables of liver damage. The initial results suggest that these toxicants enhanced obesity-induced liver injury.

A Comparison Of Four Wetlands Assessment Procedures Relevant To The Alluvial Valleys Of East Texas, Amy Camp

Electronic Theses and Dissertations

Currently several methods are used by public and private entities to assess wetland functional condition in support of the Section 404 Clean Water Act program. Four of these are: Forested Wetlands in Alluvial Valleys of the Coastal Plain of the Southeastern United States (SEHGM); A Regional Guidebook for Applying the Hydrogeomorphic Approach to the Functional Assessment of Forested Wetlands in Alluvial Valleys of East Texas (ETXHGM); Texas Rapid Assessment Method (TXRAM); and the Wildlife Habitat Appraisal Procedure (WHAP). Little previous research compares wetland functional assessment methods. Results of the SEHGM, ETXHGM, TXRAM, and WHAP methods were compared on five East …

Body Image, Fear Of Fat, And Attentional Bias For Thin And Non-Thin Bodies, Neusha Khaleghi

Electronic Theses and Dissertations

The study examined the impact of Attentional Bias Modification (ABM) on body image and fear of fat in college women. Participants were randomly assigned to one of two conditions: an ABM condition or a non-ABM placebo condition in viewing a series of thin and non-thin body stimuli. Extending previous work documenting associations between attentional biases and body dissatisfaction and the effects of ABM on body dissatisfaction, we hypothesized that effects of an ABM task designed to direct attention toward non-thin bodies would: (a) decrease body dissatisfaction, (b) increase body appreciation, and (c) decrease fear of fat. There were no significant …

Changes In The Microbial Community Of Lubomirskia Baicalensis Affected By Red Sponge Disease, Colin Rorex

Electronic Theses and Dissertations

Lake Baikal is the oldest known lake and a unique ecosystem, home to several species of fresh water sponge. A disease outbreak affecting the dominant species, Lubormirskia baialensis, was recently reported. The cause of the disease has not been determined but one of the current hypothesis is that the increase in methane concentration is correlated to the disease outbreak. This pilot study characterized the microbiomes of sick and healthy sponges through the use of 16S rRNA sequencing. Sick sponge microbiomes shared a conserved group of taxa while the healthy sponge microbiomes had greater diversity. Indicator species analysis identified two significant …

Chronic Pain Profiles And Past Bullying Experiences, Stephen Ratliff

Electronic Theses and Dissertations

The biopsychosocial model of chronic pain posits that chronic pain is influenced by factors such as depression, somatization, and psychological trauma (Gatchel, Peng, Peters, Fuchs, & Turk, 2007). Being bullied in childhood is one such factor that has been shown to be associated with chronic pain (Sigurdson, Wallander, & Sund, 2014; Voerman et al. 2015). Furthermore, those with chronic pain fit into one of three distinct psychological profiles (Williams, Urban, Keefe, Shutty, & France, 1995). The purpose of the current study was to examine the relationship between chronic pain profiles and reports of past bullying experiences. It was hypothesized that …

Investigation Of Cardiovascular Tissue Following 56fe-Radiation And Potential Countermeasure Effectiveness., Alexandra R Decarlo

Electronic Theses and Dissertations

Exposure to ionizing radiation is an important medical concern because it can lead to health problems including cancer and cardiovascular issues. In space, astronauts are exposed to ionizing radiation that is not experienced by those who remain on Earth. This radiation can cause health problems such as cardiovascular disease. One way this can happen is through the creation of reactive oxygen species, which can activate TGF-β1, contributing to fibrosis or other cardiovascular problems. Antioxidants can be a potential pharmacological mitigator of these excess reactive oxygen species because of their ability to neutralize reactive oxygen species. One such antioxidant with potential …

Plga-Modified Nanoparticles For The Treatment Of Hypo-Vascularized Hpv-Related Cervical Cancers., Lee B. Sims

Electronic Theses and Dissertations

A major challenge associated with delivery of active agents in the female reproductive tract (FRT) is the ability of agents to efficiently diffuse through the cervicovaginal mucosa (CVM) and reach the underlying sub-epithelial immune cell layer and vasculature. A variety of drug delivery vehicles have been employed to improve the delivery of agents across the CVM and offer the capability to increase the longevity and retention of active agents to treat infections of the female reproductive tract. Nanoparticles (NPs) have been shown to improve retention, diffusion, and cell-specific targeting via specific surface modifications, relative to other delivery platforms. In particular, …

Addition Of Exothermic Reaction Scale-Up Lab To Unit Operations Curriculum., Lisa A Anderson

Electronic Theses and Dissertations

According to the Chemical Safety Board’s 2002 report entitled "Improving Reactive Hazard Management,” the CSB identified 167 serious accidents involving uncontrolled chemical reactions in the United States between 1980 and 2001 causing 108 deaths and hundreds of millions of dollars in property damage. Of the 167 accidents, 35% involved runaway reactions. One noteworthy incident from recent history is the fatal explosion that occurred at T2 Laboratories in Jacksonville, FL as a result of improper scale-up and an insufficient cooling design for the system.

One recommendation resulting from the CSB investigation of the incident was that the Accreditation Board for Engineering …

Investigating The Likelihood Of Pediatric Femur Fracture Due To Falls Through Finite Element Analysis., Keyonna Mckinsey

Electronic Theses and Dissertations

Bone fracture is the second most common injury of child abuse. Studies have generally reported that femur fractures are more likely due to abuse than accidental causes in cases where the child is non-ambulatory. They have also found that household falls are commonly offered as the cause of injury in cases of abuse. In this study, a finite element (FE) pediatric femur model will be developed and used to evaluate likelihood of fracture in common household fall scenarios (bed falls and feet first falls). This will provide greater biomechanical evidence as to the likelihood of femur fracture due to common …

Comparing Stenotic Blood Flow In Three- And Two-Dimensional Arterial Renderings Using Computational Fluid Dynamics And Multiphase Mean Age Theory., Jacob S. Garza

Electronic Theses and Dissertations

Over one million invasive coronary angiography procedures are performed annually in patients who experience chest pain or are known to have coronary artery disease. The procedure is carried out to ascertain the degree of arterial blockage (stenosis) that hinders blood flow to the heart. A cardiologist performing the procedure determines the physiological degree of a stenosis by either visual estimation, which is routine practice, or by invasively measuring fractional flow reserve (FFR), which is the current gold standard that has been demonstrated to improve patient outcomes and temper the cost of healthcare. Nevertheless, FFR is performed in only 10–20% of …

Comparative Analysis Of Survival And Decay Of Fecal Indicator Bacteria In Bovine Feces And Freshwater Microcosms, Reem Tariq

Electronic Theses and Dissertations

Agricultural runoff can carry FIB that can pollute surface waters through the soil matrix. This study was designed to inspect the impact of temperature and matrix on the survival of FIB. The FIB were routinely enumerated over an 18-day period from fecal samples and freshwater microcosms maintained at 4oC, 22oC, and 35oC. It was found that the FIB studied underwent a primary growth of up to 1-log10 to 3-log10, highlighting the weakness of conventional FIB as indicators of pathogen contamination. The concentrations of FIB in the water phase were found to be significantly greater than those observed in the fecal …

Tennessee Promise: Impact On College Choice In Upper Northeast Tennessee, Jennifer R. Barber

Electronic Theses and Dissertations

The purpose of this correlational study was to explore the relationship between the new statewide two-year financial aid program, Tennessee Promise, and college choice among high school seniors in four counties in upper Northeast Tennessee. Independent variables included GPA, concern about ability to pay for college, and plans to attend a two-year or four-year institution. The dependent variables were scored on three dimensions: cost factors, social factors, and academic factors relating to college choice. Additionally, respondents reported perceptions of Tennessee Promise related to college choice. A 22-item survey was administered to high school seniors from four counties in upper Northeast …

Patients’ Perceptions Of Patient-Centered Care And The Hospital Experience Pre- And Post-Discharge, Cheryl Smith

Electronic Theses and Dissertations

Florence Nightingale used the principles of patient-centered care as the foundation for nursing practice. Today, patient-centered care delivery is part of the healthcare reform process that extends interprofessionally throughout all settings of healthcare in the United States (U.S.). Patient satisfaction measurement is one primary determinant of effective patient-centered care. The standardized Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) survey and methods is a nation-wide tool used to measure patient satisfaction. However, this method of patient satisfaction assessment relies on recollections of patients’ hospital experiences and requires accurate memory and recall. This study sought to examine the effect of …

Vocal Health: Awareness And Perceptions In Undergraduate Vocal Music And Theatre Majors, Heather Smith

Electronic Theses and Dissertations

Objective: The purpose of this study was to identify the perceptions of students majoring in vocal music and theatre regarding the instruction they receive in their undergraduate curricula on voice health education.

Methods: A survey was adapted from a previous study, Beeman (2016), with permission by the author. The survey was disseminated to undergraduate vocal music and theatre majors across the United States via SurveyMonkey®, an online survey tool.

Results: Students perceived receiving knowledge on vocal health from their voice teachers, however they reported low levels of vocal hygiene compliance. Additionally, students recognized the connection between the singing and speaking …

Evaluating Socially Determined Health In Rural Appalachia: Use Of The Social Quality Theory, Paula Masters

Electronic Theses and Dissertations

People living in rural America face unique social circumstances that can prevent them from reaching optimal health status. This fact holds especially true in the rural Appalachian region of the United States where income, education, living circumstances, and lack of resources create an environment that has some of the highest rates of morbidity and mortality in the country. While the rest of the country has seen improvement in many health behaviors and health outcomes, rural Appalachian communities remain unchanged and further behind other regions. In many cases, programming and policy have failed to create a culture of health in Appalachia. …

The Effect Of Ethanol On Skeletal Muscle Endocrine Function And The Novel Myokines Myonectin And Irisin, Kendra Hagood

Electronic Theses and Dissertations

Excessive alcohol consumption is a leading cause of death and disability globally and can lead to diseases such as alcoholic skeletal myopathy. Skeletal muscle is the largest organ in the human body and functions to regulate whole-body energy homeostasis. Additionally, skeletal muscle can function as an endocrine organ via secretion of myokines. Two myokines, myonectin and irisin, present a wide range of effects upon metabolism, inflammation, and tissue survival- signaling. We hypothesized that chronic alcohol consumption will result in reduced circulating myonectin and irisin levels. Mice were fed an ethanol-containing or control diet for 10 days or 6 weeks. Tissues …

Cost Burden Of Social Isolation For Wheelchair Users In Louisville, Kentucky., Connie Light

Electronic Theses and Dissertations

Background: Social isolation is an important predictor for poor health status, chronic diseases, and healthcare utilization and costs. There is a growing number of Americans with one or more disabilities, and evidence suggests that many are also socially isolated. This is especially true for those with immobility, as the built environment including housing structures are not universally designed to be accommodating. Immobility describes those who use walkers, canes, or wheelchairs, with the latter suffering the most impact. The cost of social exclusion can be measured by the exacerbation of disease in wheelchair users, whose fragile health status and social networks …

Exercise Preconditioning And Tfam Overexpression Diminish Skeletal Muscle Atrophy., Nicholas Todd Theilen

Electronic Theses and Dissertations

This dissertation is an analysis of skeletal muscle atrophy and a molecular assessment of potential preventative treatments. Chapter I begins with a background of skeletal muscle atrophy along with an analysis of associated molecular pathways. Here, we discuss how skeletal muscle atrophy is the consequence of protein degradation exceeding protein synthesis and can occur when a muscle is abnormally disused. The development of therapies prior to skeletal muscle atrophy settings to diminish protein degradation is scarce and could be useful to prevent negative clinical outcomes of patients who must unload and disuse musculature over extended periods. Mitochondrial dysfunction is associated …

“You Can’T Put A Price On Something That’S Not For Sale”: Eminent Domain In St. Paul, Virginia (1970 - 1985), Evan Couch

Electronic Theses and Dissertations

The St. Paul Redevelopment Project was unique and touted as the first-of-its-kind to feature cooperation from all three levels of government. Several government agencies helped St. Paul accomplish an “impossible dream,” spending an estimated thirty million dollars to rechannel the Clinch River in the 1970s and 1980s. The small town of 1,000 residentsrelocated 100 families from South St. Paul to carry out the project, much to the dismay of many of the residents. A primary factor in enforcing the power of eminent domain in the St. Paul Redevelopment Project was the idea of “progress,” a commonality of many redevelopment projects. …

Identification Of “Fhua” Like Genes In Rhizobium Leguminosarum Atcc 14479 And Its Role In Vicibactin Transport And Investigation Of Heme Bound Iron Uptake System, Sushant Khanal

Electronic Theses and Dissertations

Siderophores are low molecular weight, iron chelating compounds produced by many bacteria for uptake of iron in case of iron scarcity. Vicibactin is a trihydroxamate type siderophore produced by Rhizobium leguminosarum bv. trifolii ATCC 14479. This work focuses on identifying an outer membrane receptor involved in the transport of vicibactin. We have confirmed the presence of the putative fhuA gene in R. leguminosarum bv. trifolii ATCC 14479. This bacteria shows mutualistic symbiosis with the red clover plant Trifoliium prantense. Leghemoglobin, with its cofactor heme is present in the plant root nodules that surrounds the infecting organism present in the nodules. …

The Impact Of A Sixth Grade Laptop Initiative On Student Attitudes Concerning Their Learning And Technological Competencies, Jamie Jordan

Electronic Theses and Dissertations

This research explored the impact of a sixth grade one-to-one laptop initiative on student attitudes about learning and technological competencies. The study compared student preintervention and postintervention survey data prior to and after a sixth grade laptop intervention initiative. The survey responses were divided into 5 dimensions (School Subject Attitudes, Teaching and Learning Preferences, Computer Use Perceptions, Technology Skills, and Personal Attitudes and Behaviors) on both pre- and postsurveys. District means were compared with preintervention and postintervention data, as well as the means from the 5 dimensions, using a one-sample t-test with a midpoint test value of 3 on a …

Does Spaceflight Increase The Chance Of Female Astronauts Developing Uterine Cancer?, Areej Mosa

Electronic Theses and Dissertations

One of the main questions put forth by NASA and the European Space Agency (ESA) is whether or not an organism, especially mankind, can complete an entire life cycle in space. With this in mind, it is essential to study the effect of spaceflight on reproductive tissues. Using simulated microgravity techniques and whole-body radiation we sought to determine if females subjected to a simulated spaceflight environment have increased incidences of uterine cancer. Uterine tissue from mice subjected to simulated spaceflight was analyzed using immunohistochemical staining and western blot analysis. Two pathways commonly activated in cancer were investigated. Additionally, the uterine …

A Survey Of The Implementation And Usage Of Electronic Dental Records And Digital Radiographs In Private Dental Practices In Mississippi, Barbara K. Brent

Electronic Theses and Dissertations

Implementation of electronic health records by the Health Information Technology for Economic and Clinical Health has led to the implementation of electronic dental records (EDRs) and digital radiography in dental offices. The purpose of this study was to determine the state of the implementation and usage of EDRs and digital radiographs by the private general and pediatric dental practices in Mississippi as well as reasons why the dental practices are not moving forward with the advanced technology.

A survey was emailed to 712 dental practices: 116 responded (16% response rate), and 104 consented to participate (89.66%). Results indicated dental practices …

A Phenomenological Study On Teacher Perception Of Change In School Culture As A Result Of The Implementation Of Mindfulness, Justin Penley

Electronic Theses and Dissertations

A qualitative investigation was conducted to explore the phenomenon of teacher perception of change in school culture as a result of the implementation of mindfulness. This study used a phenomenological methodology, enabling the researcher to gather information by focusing on and describing the impact of mindfulness on school culture in a deep comprehensive manner.

The investigator was able to extract meaning and code data, leading to the emergence of themes that supported and aligned with the study’s research questions and thus led into a holistic understanding of the phenomenon. This was accomplished through data analysis of rich, in-depth interviews, onsite …

Hiv-Related Knowledge, Attitudes, And Behaviors In Two Low Resource Settings, Candice Lynn Collins

Electronic Theses and Dissertations

Two Human Immunodeficiency Virus (HIV) outbreaks occurred almost simultaneously in the United States (US) (2014-2015) and in Cambodia (2015). Information is lacking on HIV-related knowledge, stigmatizing attitudes, and high-risk behaviors (KAB) among the general population, which may affect the transmission of HIV and lead to outbreaks. The current study aimed to: 1) assess KAB among the general population in a high-risk county in the US, 2) analyze KAB among the general population of Cambodia, and 3) compare KAB across samples from a high-risk county in Northeast Tennessee and a province in Cambodia. Tennessee data were collected in 2017 and Cambodian …