Digital Commons Network^™

Deep Fluid Inputs Into The Continental-Scale Nubian Sandstone Aquifer System Constrained By Hydrochemical, Stable Isotope, And Noble Gas Data, Abdel Mawgoud Mohammed

Dissertations

The Nubian Sandstone Aquifer System (NSAS) of northeastern Africa is one of the largest confined fossil-water aquifer systems in the world, with several nations relying on it (Egypt, Libya, Sudan and Chad). This groundwater is the biggest and in some cases the only future source of water to meet the development goals of each NSAS country. This study provides new geochemical data from the main oases of the Western Desert of Egypt and a compilation of published hydrochemical data from the regional aquifer. Interpretation of results suggests heterogeneous fluid mixing within the aquifer, the potential for hydrochemical sub-basins, and a …

Relationships Of Haemosporidian Parasites To Populations Of Their Avian Hosts In Eastern North America, Vincenzo Alexander Ellis

Dissertations

Avian Haemosporida are common, vector-transmitted blood parasites of birds throughout the world. During my dissertation research, I explored how multiple host species respond immunologically to natural infections in the wild (Chapter 1) and to experimental infections in the laboratory (Chapter 2). Despite their tractability as a model host-parasite system and a burgeoning literature on avian Haemosporida, little is known about how their populations interact across large areas (hereafter “regions”). I present data from parasite surveys of birds across eastern North America suggesting that continental parasite populations track host populations across the region, but also that the host breadth of a …

Two Case Studies Of The Contribution Of Emotional Intelligence, Communication Style, Job Competency, Vision, And Ethics To Constituent Buy-In For Leaders, David M. Schall

Dissertations

The purpose of this study was to investigate the similarities and dissimilarities of leadership traits that create leader buy-in for an educational leader and a football coach; specifically, emotional intelligence, communication style, job competency, vision, and ethics, between an educational leader and a sports coach. The rationale of this study was to create recent literature that provided insight for leaders in multiple areas on how to transfer leadership skills to establish common goals and missions within their organizations. Data was collected using a survey completed by 154 volunteer participants, along with interviews of 12 volunteer participants. A focus group of …

A Comparison Of Single Gender And Coeducational Classrooms, Student Engagement, And Achievement Scores, Myra Pendleton

Dissertations

The purpose of this study was to determine if there was a difference in the academic achievement in reading among students enrolled in single-gender and coeducational classes, as well as the impact of teachers’ perceptions on the outcome of academic achievement. The study used a mixed-method approach to address this purpose. This study reported quantitative findings from reading scores on the Acuity test for 396 students in grades two through eight, from four elementary and two middle schools within an urban district in Missouri. Acuity scores were examined in several ways: comparison of the means for coeducational and single-gendered classrooms …

Up-Setting The Apple Cart: Mitigating Potentially Disabling Barriers In Education, Amy Tepper

Dissertations

In this study, certified general and special educators, school administrators, as well as paraprofessionals (program, classroom, and/or individual assistants), and school-based specialists (speech-language pathologists, occupational therapists, social workers, etc.) were surveyed regarding their opinions specific to the impact of potentially disabling barriers for students within the educational setting. In addition to the survey data, follow-up interviews were conducted with five select survey participants. The interview participants were selected based upon their assenting and/or dissenting opinions/responses, as well as their professional role within an educational context. The interviews were completed as a means of deriving additional, inimitable, solutions-focused insights regarding transforming …

Factors Associated With High Risk Infant Follow-Up Attendance, Martha Grant Fuller

Dissertations

Prematurity is a significant public health problem and preterm infants face well described risks of adverse neurodevelopmental outcomes. Bronfenbrenner’s bioecological theory of development describes interactions between biological and environmental factors and explains how these interactions can impact development. Systematic follow-up of preterm, high-risk infants is recommended for early identification of problems and provision of interventions and support services. Most research on follow-up attendance has involved small, single sites. A retrospective analysis of population based data available in the California Children’s Services High Risk Infant Follow-up Quality of Care Initiative (HRIF-QCI) data system was performed to examine factors associated with attendance …

A Comparative Analysis Of Student Achievement & Retention In Traditional And Online First Semester Anatomy & Physiology Courses, Geralyn Marie Caplan

Dissertations

There is a bias that online lab science courses are inferior to their campus counterparts. Even so there is an increasing demand for online courses by the student body. The purpose of this quantitative study was to determine whether anatomy and physiology I could be taught online without affecting academic rigor through a comparison of the successful completion of student learning outcomes, as well as to learn more about the students who take A&P. The study sought to identify the causes or relationships that exist between online and face-to-face presentation of A&PI. It also considered retention related to the independent …

Semantic Models As Knowledge Repositories For Data Modellers In The Financial Industry, Gary Thompson

Dissertations

Data modellers working in the financial industry are expected to use both technical and business knowledge to transform data into the information required to meet regulatory reporting requirements. This dissertation explores the role that semantic models such as ontologies and concept maps can play in the acquisition of financial and regulatory concepts by data modellers. While there is widespread use of semantic models in the financial industry to specify how information is exchanged between IT systems, there is limited use of these models as knowledge repositories. The objective of this research is to evaluate the use of a semantic model …

A Novel And Domain-Specific Document Clustering And Topic Aggregation Toolset For A News Organisation, Claire Mcmahon

Dissertations

Large collections of documents are becoming increasingly common in the news gathering industry. A review of the literature shows there is a growing interest in datadriven journalism and specifically that the journalism profession needs better tools to understand and develop actionable knowledge from large document sets. On a daily basis, journalists are tasked with searching a diverse range of document sets including news gathering services, emails, freedom of information requests, court records, government reports, press releases and many other types of generally unstructured documents. Document clustering techniques can help address problems of understanding the ever expanding quantities of documents available …

Coping With Racial Discrimination: The Impact Of Substance Use, Emotional Eating, And Emotional Support On Mental And Physical Health, Maurice Endsley, Jr.

Dissertations

Racial discrimination is a likely contributor to disparate health outcomes for African-American and Hispanic-Americans. The current study elaborates on previous research by assessing the impact of three coping variables, substance use, emotional eating, and social support, which may explain the relationship between racial discrimination and poorer perceptions physical functioning and three health maladies, including hypertension, diabetes, and cardiovascular disease. Furthermore, the coping responses were hypothesized to serve as protective factors against the development of depression and anger symptoms. A total of 424 Hispanic, African-American participants between the ages of 18 and 65 completed an online survey. A six variable model …

Exploring Holistic Comfort In Children Who Experience A Clinical Venipuncture Procedure, April Athena Bice

Dissertations

Children often experience the uncomfortable effects of invasive procedures as a part of primary health supervision and during times of illness. Inadequate procedural comfort management can lead to numerous lasting harmful effects including distrust of healthcare providers, future intensified pain responses, negative cognitive and emotional experiences, and psychosocial health problems (Czarnecki et al. 2011). Holistic comfort has been well documented in adult literature but little research exists on the understanding of holistic procedural comfort from the child's perspective.

The purpose of this study was to explore perspectives of children age 4 to 7 years and their caregivers regarding procedural …

An Exploratory Study Of The Role An Equine- Assisted Learning Programme Plays In Diverting Young People From Criminal Pathways, Francisca O'Kelly

Dissertations

Interest in the potential of equine-assisted therapy and learning, where horses are incorporated in therapeutic, rehabilitative and educational interventions to ameliorate emotional, behavioural and social issues, has increased in the past half century. More recently, equine-assisted therapy and learning has been utilised in social work and penal contexts, such as in the rehabilitation and support of at-risk youth and young prisoners. However, there is a dearth of empirical research and published evaluative studies examining the effectiveness of these emerging programmes. The purpose of this study is to explore the role that a Dublin-based equine-assisted learning programme plays in diverting young …

A Comparison Of The Participation Rates And Perceptions Of Males And Females Regarding High School Athletic Participation, Edward Malcom Dreyer

Dissertations

The purpose of this study was to compare the athletic participation rate of males and females within the high school of study. Freshmen and senior students were surveyed to gather data on the reasons students chose to participate or not participate in athletics. Focus groups were conducted at a local university to further explore why students participated in athletics and why some of these students discontinued their participation in athletics. Focus groups also explored challenges facing athletes and student perceptions of female participation in athletics. Athletic participation data from the high school of study were also taken into consideration. This …

Just Jocking? An Exploration Of How 10-12 Year Old Children Experience An Equine Assisted Learning Programme, In A Deis School, In Limerick City., Kate Bronwyn Jones

Dissertations

Throughout Irish history, the horse has had many uses. In modern Ireland, some communities have harnessed the power of the horse to deliver a range of social interventions. However, at present, there is little published research about equine assisted programmes in Ireland. The main intention of this research project is to explore how 10-12 year old children, from a DEIS primary school in Limerick city, experience an Equine Assisted Learning (EAL) programme facilitated by the local Garda Youth Diversion Project (GYDP). The project aims to be child centred, emergent and participatory, in keeping with the United Nations Convention on the …

Hydrodynamics, Dissolution, And Mass Transfer Effects In Different Dissolution Testing Apparatuses And Laboratory Systems, Bing Wang

Dissertations

Dissolution testing apparatuses and shaker flasks agitated by shaker tables are laboratory systems routinely found in many laboratories at most companies and agencies, and especially in pharmaceutical companies. These devices are commonly used in a number of applications, from drug development to quality control. Despite their common use, these systems have not been fully investigated from an engineering perspective in order to understand their operation characteristics. For example, the hydrodynamics of many of these systems have received little attention until relatively recently, and only over the last few years have some of these systems, such as the USP dissolution testing …

Determining How Stable Network Oscillations Arise From Neuronal And Synaptic Mechanisms, Diana Martinez

Dissertations

Many animal behaviors involve the generation of rhythmic patterns and movements. These rhythmic patterns are commonly mediated by neural networks that produce an oscillatory activity pattern, where different neurons maintain a relative phase relationship. This thesis examines the relationships between the cellular and synaptic properties that give rise to stable activity in the form of phase maintenance, across different frequencies in a well-suited model system, the pyloric network of the crab Cancer borealis. The pyloric network has endogenously oscillating ‘pacemaker’ neurons that inhibit ‘follower’ neurons, which in turn feed back onto the pacemaker neurons. The focus of this thesis …

Attraction And Risk In Urban Bird Habitats, Megan E. Litwhiler

Dissertations

Urban expansion is an increasing threat to native bird populations. Consequently, maintaining and developing safe urban habitat space is necessary for conservation. Birds living in, or migrating through, urban areas utilize a variety of managed green-spaces such as parks, gardens, college campuses, and cemeteries. In addition to managed habitats, birds may use abandoned property that has been reclaimed by vegetation and associated spontaneous, biological communities. Such urban habitats may provide valuable resources for birds and other wildlife; however, these sites often contain high densities of non-native plants and can be polluted, potentially imparting a greater risk than benefit to the …

The Role Of Arabidopsis Aminoalcoholphosphotransferase 1 And 2 In Plant Development And Oil Production And Transcriptional Regulation Of Seed Oil Accumulation By Glabra2, Yu Liu

Dissertations

Vegetable oils are important commodities as human foods, animal feeds, renewable industrial feedstocks, and biofuels. Many biochemical and regulation events are involved in seed oil formation, including phospholipids metabolism and transcriptional regulation. In this work, I investigated 1) the role of aminoalcoholphosphotransferases (AAPTs) in phospholipid synthesis and plant development, 2) the effects of AAPTs on seed storage lipid production in Arabidopsis and the emerging oil crop Camelina, and 3) the interaction of the lipid mediator phosphatidic acid (PA) with GLABRA2 (GL2), a negative regulator in seed oil production. AAPTs are the enzymes that produce phosphatidylcholine (PC) and phosphatidylethanolamine (PE). The …

Soluble Amyloid-Beta 42 Aggregates Stimulate Cellular Inflammation Independent Of Cd47, Sanjib Karki

Dissertations

Alzheimer’s disease (AD) is a neurodegenerative disease characterized by the accumulation and deposition of aggregated amyloid-β protein (Aβ). Most of the studies indicate that Aβ1-42) and Aβ(1-40) play an important role in the neurodegenerative pathology in AD. A critical component of AD pathology is inflammation, which results from the activation of glial cells around the Aβ deposits. The goal of my dissertation research was to determine the role of Aβ aggregation in microglia-triggered inflammation and identify cellular components that mediate the inflammatory response. CD47 is a cellular receptor found on the microglia surface and it has been proposed to have …

Quarry: Poems, Christina Ann Rothenbeck

Dissertations

A book-length poetry manuscript including poems about hunting, illness, domesticity, illness, girlhood, and the body.

A Jamaican Voice: The Choral Music Of Noel Dexter, Desmond A. Moulton

Dissertations

As we approach the twenty-first century, the world generally is moving away from the dominance of the European aesthetic towards a world music that owes much to the musical resources of the African-American tradition. Jamaica’s social and philosophical music belong mainly to that tradition, which includes the use of rhythms, and timbral and melodic resources that exist independently of harmony. Already in this century, Jamaicans have created two totally new music - Nyabinghi, which performs a philosophical function and Reggae, which performs a social function. The choral music of Noel Dexter is important because it is uniquely Jamaican/Caribbean in its …

Nuestro Mundo A Martiano Exploration Of The Existential Impact Of Climate Change, Alejandro Chester Strong

Dissertations

This work is an account of meaning and value in the time of climate change. I use the findings and predictions of scientists to develop a philosophy of living that fits today's concerns. In essence the ideas put forward come from a single question: If humans can change the planet in such a way that it threatens the possibility of human life on Earth what does this mean for the place of humans on Earth? It is this question, which the every chapter hereafter works to answer. Establishing a philosophy of living and explaining a global ecological crisis is a …

Saliva Cotinine As A Measure Of Abstinence In A Lottery-Based Contingency Management Treatment For Smoking Cessation, Catherine M. Gayman

Dissertations

Contingency management decreases smoking by delivering monetary incentives contingent upon objective verification of abstinence. The present study investigated the effectiveness of monitoring saliva cotinine twice weekly in a contingency-management treatment for cigarette smoking using a cash prize-based payment system. Participants were randomly assigned to either a contingent reinforcement group or a non-contingent reinforcement group. The study began with five consecutive Baseline days during which participants smoked as usual, and was followed by four consecutive Shaping days, during which participants were asked to gradually decrease smoking. During the subsequent three-week Abstinence phase, participants submitted saliva cotinine and breath carbon monoxide samples …

Pedagogical Approaches To Multicultural Education Within Teacher Preparation Programs, Mark Steven Barajas

Dissertations

Despite national standards established in 1979, U.S. teacher preparation programs have struggled to incorporate comprehensive, multicultural teacher education into existing curriculum (Sleeter, 2008). The weakness of multicultural training in most teacher preparation programs is theorized as a major contributor to the persistent achievement gap between students of color and White students (Ferguson, 2003). Furthermore, literature indicates White teachers frequently hold lower expectations for racial and ethnic minority students compared to White students and these lowered expectations often manifest as lower academic achievement (McKown & Weinstein, 2007).

This study provides empirical data regarding multicultural education within teacher preparation programs. Individual course …

Assessing The Interpersonal Effectiveness Of The Dear-Man Skill Using A Social Psychology Paradigm, Matthew T. Jameson

Dissertations

For more than 50 years, social psychology has investigated persuasion techniques intended to facilitate influencing the behavior of others. This body of research has identified a variety of effective techniques and principles (see Cialdini, 2007). Over roughly the same period, clinical psychologists developed interventions targeting assertiveness, the ability to influence others in socially appropriate ways (see Long, Long, & Whitson, 2009) and the related construct “interpersonal effectiveness,” the ability to influence others without harming relationships or self-respect (Linehan, 2015, pp. 231-237). A literature review conducted by the author was unable to identify linkages between these two related areas of inquiry. …

Investigations Of Filarial Nematode Motility, Response To Drug Treatment, And Pathology, Charles Nutting

Dissertations

More than a billion people live at risk of chronic diseases caused by parasitic filarial nematodes. These diseases: lymphatic filariasis, onchocerciasis, and loaisis cause significant morbidity, degrading the health, quality of life, and economic productivity of those who suffer from them. Though treatable, there is no cure to rid those infected of adult parasites. The parasites can modulate the immune system and live for 10-15 years. Testing of compounds against filarial nematodes is complicated due to a lack of an objective platform on which to analyze in vitro treatments. There is no published, immunocompetent laboratory model for lymphatic filariasis. This …

Learning To Learn And Naming Through Receptive And Expressive Identification, Kelli Perry

Dissertations

Poor or no language skills are typical of most preschool children with autism (American Psychological Association, 2013). Language can be divided into the two components of receptive, or listener, skills and expressive, or speaker, skills. Recommendations for sequencing language instruction vary across the different behavior-analytic instructional models (Lovaas, 1981; Barbara & Rasmussen, 2007; Sundberg & Partington, 1998; Sundberg, 2008). The current study sought to examine those recommendations using young children (three- to four-years-old) with limited vocal repertoires and to explore the acquisition of learning to learn (Harlow, 1949) and naming (Greer & Ross, 2007). This research (1) adds to the …

An Analysis Of The Correlation Between Act Scores And One-To-One Computing, Jeffrey Brian Heath

Dissertations

This study examined whether a relationship exists between one-to-one computing and student achievement, specifically ACT scores. This study also examined whether relationships exist among teachers’ perceptions of one-to-one computing, teachers’ years of experience, subjects taught by teachers, teachers’ skill level in the use of a computer for instruction, and teachers’ perceptions of changes in ACT scores. The results of this study could help policymakers and educators with decisions regarding implementation of one-to-one computing programs.

The sample of schools for investigating the relationship between one-to-one computing and ACT scores consisted of 33 secondary public schools with one-to-one computing programs located in …

Things You Can't See, Alan Ellis Purdie

Dissertations

The following is a collection of short fiction exploring the human-dog relationship. The stories work to evade the sentimentality generally associated with fiction wherein pets or animals are featured, depicting instead the dramatic complications the canine has upon human relationship and interaction.

Masters thesis: http://aquila.usm.edu/masters_theses/228/

Assessing Biogeochemical Impacts And Environmental Conditions Associated With Cross-Shelf High Chlorophyll Plumes In The Northern Gulf Of Mexico, Erin Brooke Jones

Dissertations

The northern Gulf of Mexico is a complex marine system subject to episodic physical phenomena such as loop current eddies. Flow fields generated by these eddies can result in cross-shelf exchanges between riverine influenced shelf waters and the offshore water column. This study considers the impacts of high chlorophyll plumes (HCPs) resulting from cross-shelf exchanges to the bio-optical properties of affected waters and how these plumes are influenced by their environment. The seasonal, interannual and decadal chlorophyll cycles of the Gulf of Mexico and the northern Gulf of Mexico are described to provide context for evaluating the ecological effects of …