Digital Commons Network^™

Equity And Excellence: The Story Of Lake Shore Community High School's Quest For Racial Justice In Education, Marcus Campbell

Dissertations

Institutional racism is integral to U.S. social structure, including the public schools. Instituting a limited high school detracking program as a strategy to deal with racial achievement disparities faced strong community resistance. Leadership and a perfect storm of social and political factors made successful implementation of a detracking initiative possible. School community leaders and staff were interviewed about their experiences of systemic change to further access for students of color to honors classes. Results suggest some leadership qualities and characteristics that facilitated the change; the external factors that contributed to the successful change for racial equity are also detailed.

Impact Of Single Gender Programs On Achievement, Attendance, Discipline, And Character: A Program Evaluation Project, Carla L. Sparks Dr.

Dissertations

The instance of single gender education in American public schools has risen since the 2006 amendments to Title IX permitting public schools to separate boys and girls for academic purposes. The purpose of this study is to determine the efficacy of single gender education to promote gains in student academic achievement, increase attendance levels, support character development, and decrease student discipline problems. The context of this inquiry is a large public school district that incorporates single gender education applications across the district. My study is focused on an all-girls middle school and an all-boys middle school, and it demonstrates outcomes …

Identities And Motives Of Naturalist Development Program Attendees And Their Relation To Professional Careers, Jennifer A. Mraz

Dissertations

In recent years, there has been much concern over the decline of biologists who actually identify themselves to be naturalists, which negatively impacts the field of conservation and the study of biology as a whole. This could result in a decrease in individuals who participate in naturalist-like activities, such as informal environmental education and environmental volunteerism. The purpose of my study was to determine what discourse identities were held by naturalist development program participants, how these discourse identities related to their volunteer motives in environmental settings, and how discourse identity related to professional careers. I defined identity through the lens …

Effects Of Expected Service Life Exposures On The Functional Properties And Impact Performance Of An American Football Helmet Outer Shell Material, David E. Krzeminski

Dissertations

The purpose of this dissertation is to gain a greater scientific understanding of the changes in functional material properties and impact performance of an American football helmet outer shell material under expected service life exposures. The research goals are to (i) quantify chemical, physical, thermal, and mechanical degradation of an American football outer shell material under expected environmental conditions and (ii) develop a linear drop test impact protocol to employ expected on-field impact conditions to American football helmet components and a plaque-foam (i.e., shell-liner) surrogate. Overall, a step-wise progression of analysis was demonstrated to concurrently quantify and understand changes in …

Teacher Professional Learning And High School Students' Mississippi Subject Area Test Performance, Christine A. Moseley

Dissertations

The purpose of this study was to determine if there was any significant relationship between specific elements of professional learning and students’ performance on the state mandated Mississippi Subject Area Testing Program (SATP2). The study includes the design qualities of professional learning, the level of teacher involvement in the professional learning process, teacher beliefs regarding professional learning, and perceived administrative support of professional learning programs. The researcher utilized an original survey instrument entitled Professional Learning Design and Perception to gather quantitative data for the study. High school teachers of Algebra I, Biology I, English II, and U. S. History in …

Olfactory Enrichment In California Sea Lions (Zalophus Californianus), Mystera M. Samuelson

Dissertations

In the wild, California sea lions (Zalophus californianus) are exposed to a wide array of sensory information at all times. However, it is impossible for captive environments to provide this level of complexity. Therefore unique procedures and practices are necessary for the maintenance of physiological and psychological health in captive animals (Wells, 2009). This project aims to explore the behavioral effect of scent added to the environment, with the goal of improving the welfare of captive sea lions by introducing two scent types: 1.) Natural scents, found in their native environment, and 2.) Non-natural scents, not found in …

Macrobenthic Communities In The Northern Gulf Of Mexico Hypoxic Zone: Testing The Pearson-Rosenberg Model, Shivakumar Shivarudrappa

Dissertations

The Pearson and Rosenberg (P-R) conceptual model of macrobenthic succession was used to assess the impact of hypoxia (dissolved oxygen [DO] ≤ 2 mg/L) on the macrobenthic community on the continental shelf of northern Gulf of Mexico for the first time. The model uses a stress-response relationship between environmental parameters and the macrobenthic community to determine the ecological condition of the benthic habitat. The ecological significance of dissolved oxygen in a benthic habitat is well understood. In addition, the annual recurrence of bottom-water hypoxia on the Louisiana/Texas shelf during summer months is well documented.

The P-R model illustrates the decreasing …

Asymmetric Synthesis Of Cα-Methyl-Γ- And Δ-Amino Acids From A Common Synthon And Evaluation Of Thionyl Chloride Assisted Peptide Esterifications, Emily Rose Vogel

Dissertations

C^α-methyl-γ- and δ-unnatural amino acids (UAAs) are important class of biomolecules used extensively as structural scaffolds, peptidomimetics, and in the development of pharmaceuticals. Due to steric congestion surrounding the quaternary center, asymmetric preparation of α,α-disubstituted UAAs are synthetically challenging. Herein, two methods for the synthesis of chiral synthons to prepare C^α-methyl-γ- and -δ-UAAs are reported. A crucial step in both strategies includes an enzymatic hydrolysis of prochiral malonic esters with pig liver esterase (PLE). The first method utilizes the Meyer Schuster rearrangement to prepare α,β-unsaturated diesters synthons, but the preparation of the precursor propargyl alcohol decomposes …

Hydrogen Bond-Mediated Structural Order In Hydroxylated Bis-Mpa Dendritic Polymers: Experimental And Molecular Dynamics Simulation Study, Maliha N. Syed

Dissertations

Dendritic architectures are echoed throughout nature. While the significance of these pervasive patterns is not entirely clear, connections between their structures and physical properties are fascinating to contemplate. Particular interest has been paid to a family of synthetically manufactured and commercially available dendritic polymers based on 2,2-bis(hydroxymethyl) propionic acid (bis-MPA) as a monomer. Composed of two hydroxyls and a carboxyl group, bis-MPA based structures hydrogen bond (H-bond) profusely. Given the high concentration and unique spatial orientation of end-groups, as well as the multitude of carbonyl, ester, and ether interior H-bond acceptors, a set of distinct H-bond organizations may be observed …

Effects Of Resistance Training And Creatine Monohydrate On Doxorubicin-Induced Muscle Dysfunction, Eric Christopher Bredahl

Dissertations

Doxorubicin (DOX) is a powerful chemotherapy agent that is associated with a number of deleterious side effects, including skeletal muscle dysfunction. The exact mechanisms behind the observed skeletal muscle dysfunction have yet to be fully understood. Nonetheless, the observed myotoxicity is believed to be the result of an increased oxidative stress. Resistance training (RT) has been shown to preserve skeletal muscle function in DOX treated muscles. Conversely, creatine (Cr) has been shown to improve skeletal muscle function. Yet, there has been no investigation into the effect of combined RT and Cr on DOX-induced muscle dysfunction. Thus, the possibility exists that …

Exploring Male Counselors’ Experiences With Vulnerability In The Counseling Relationship, Hannah Edith Davis Kreider

Dissertations

While existing literature clearly indicates that the relationship between counselor and client is important and crucial for therapeutic progress (e.g., Norcross & Wampold, 2011), little research has been done on the experiences of counselors within the therapeutic relationship. Vulnerability has been noted as an important component of growth-fostering relationships (e.g., Jordan, 2008), however research is lacking on how counselors experience vulnerability with their clients. Within the field of counseling, men are underrepresented (Michel, Hall, Hays, & Runyan, 2013) and little research exists exploring their unique experiences as counselors. Additionally, due to gender role socialization, men are likely to struggle with …

School Policy And Practice To Tackle A Public Health Problem: Sudden Cardiac Arrest, Leigh Lynn Mcgown-Kauffman

Dissertations

Sudden cardiac arrest (SCA) is a leading cause of death in the United States. While the medical research has exhaustively documented that immediate response directly impacts survival rates in SCA and that schools could be the best catalyst for creating change by bystanders, there is little to no educational research addressing school policy or practices in regards to cardiac emergencies in schools. The purpose of this dissertation was to identify and describe characteristics of the Colorado schools that offer cardiopulmonary resuscitation (CPR) training and onsite automated external defibrillators (AED). Two research questions were answered, Of respondents, what are the characteristics …

The Meaning Of Physical Activity From The Perspective Of Indonesian Immigrant Youth, Caly Setiawan

Dissertations

The purpose of this phenomenological study was to examine what constitutes the experience of physical activity for Indonesian immigrant youth. Fifteen Indonesian young people aged 13 to 18 participated in the study. Data were collected through two sets of interviews. During the first set of interviews, data were gathered about physical activity experiences and the meanings that the youth ascribed to their participation. A second set of interviews were conducted to collect information about the participants’ strategies for engaging Indonesian immigrants in physical activity. Seven purposefully selected participants were the respondents in these interviews. Data were analyzed using a three …

All Families Are Unique: Experiences Of Lesbian-Parented Families, Rachel Tova Gall

Dissertations

This study explored the experiences of families with lesbian mothers and elementary school-aged children residing in metropolitan areas of the United States. This phenomenology aimed to transcend comparative and binary research to include the voices of sexual minorities and children. Eight whole-family interviews were conducted in alignment with the study’s systemic-constructivist approach. A number of themes emerged from the data that were generally consistent with prior research. Mothers were intentional about the communities in which they surrounded themselves, the process of having children, and having discussions with children about potential discrimination. Participants saw themselves as advocates and were typically out …

Modeling Arbitrarily Interval-Censored Survival Data With External Time-Dependent Covariates, Wei Fang

Dissertations

Arbitrarily interval-censored survival data refer to the situation where the exact time of the occurrence of an event of interest is only known to have occurred within some two consecutive examinations. External time-dependent covariates refer to those whose values change during the periodic follow-up, and whose value at a particular time does not require individuals to be under direct observation. Regression modeling of survival data usually either handles arbitrarily interval-censored data alone (Farrington, 1996) or external time-dependent covariates alone (Cox, 1972; Therneau & Grambsch, 2000). In the current research, an adjustment has been made to the data augmentation used in …

Deposition And Characterization Of Carbon Nanotubes (Cnts) Based Films For Sensing Applications, Amila C. Dissanayake

Dissertations

The advent of carbon nanotubes (CNTs) has opened up lot of novel applications because of their unique electrical and mechanical properties. CNTs are well known material for its exceptional electrical, mechanical, optical, thermal and chemical properties. A single-wall nanotube (SWNT) can be either semiconducting, metallic or semi-metallic, based on its chirality and diameter. SWNTs can be used in transistor device as active channels due to high electron mobility (~10000 cm2/(V s), electrical interconnects, nano-scale circuits, field-emission displays, light-emitting devices and thermal heat sinks due to low resistivity, high current density (~109A cm-2) and high thermal conductivity (~3500 W m-1). Further, …

Assessment And Comparison Of The Electronic Properties Of Group 10 Bimetallic Nanoparticles Relative To Their Monometallic Counterparts, Ali Bolandi

Dissertations

Group 10 transition metals with nanoscale dimensions offer significant advantages over their bulk counterparts. Significant work has been devoted toward studying the benefits of their catalytic efficiencies, however, less has been dedicated toward understanding their electronic properties and how such changes influence charge storage and sensor efficiency. The dissertation work focuses on designing metallic and bimetallic nanoparticles consisting of nanoscale Group 10 transition metals with welldefined structures, prepared using a facile synthetic procedure. The nanoparticles were characterized by electron microscopy, spectroscopic and x-ray techniques. The efficiency of monometallic and bimetallic nanoparticles toward electron storage was investigated electrochemically and by optical …

Defining Equity And Addressing The Social Determinants Of Equity In International Development Evaluation, Kelly N. Robertson

Dissertations

The purpose of equity-focused evaluation is to examine the relationship between the evaluand and (1) experiences of social groups with different levels of advantage/disadvantage, and (2) the social determinants of equity, which shape those experiences. Equity-focused evaluation has emerged within the field of international development evaluation because of an increased emphasis on equity in the achievement of international development goals. However, empirically based theoretical and practical guidance on equity-focused evaluation is limited. There has not been a detailed examination of how equity—the conceptual root of equity-focused evaluation—is defined and differentiated from similar concepts in the field, despite having important implications …

Ecological Strategies And Disturbance Response Of Tropical Forest Trees: Insight From Functional Trait Variation, Oyomoare Lolade Osazuwa-Peters

Dissertations

Tropical forests store  40% of terrestrial carbon, process six times as much carbon as is released through fossil fuel use, and are epicenters of biodiversity. Despite all that we know about tropical forests, there remains much to discover about variation in ecological strategies, differences in the way species acquire limited resources through dissimilarities in construction and allocation patterns. We also know little as to how this variation shapes the resilience of tropical tree communities to disturbance. These forests are increasingly threatened by global change stressors, such as anthropogenic land-use and climate change. Recent advances in ecological literature show that …

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 …

Planning For A Community Supported Farmers Market In A Rural Usda Food Desert, Carrie Lynn Engelbright

Dissertations

A community initiative to develop and sustain a farmer's market can address insufficient access to fresh and affordable fruits and vegetables for individuals working and residing in a United States Department of Agriculture (USDA) designated food desert. This project addressed a particular USDA food desert in South Wood County, Wisconsin. The purpose of this project was to develop and plan for implementation and evaluation of a community-supported farmers market in South Wood County, with the goal to increase access to fruits and vegetables. Project objectives included development of a sustainable community infrastructure to support the market, development of policies and …

Development Of The Regenerative Glycosylation Approach For Manual And Automated Oligosaccharide Synthesis, Swati Sudhir Nigudkar

Dissertations

It has been recognized that carbohydrates are involved in all phases of life beginning with the embryonic development and cell growth. However, it is the involvement of carbohydrates in the progression of various deadly diseases that gave these natural compounds significant roles in diagnostics and as pharmaceuticals. Although carbohydrates are highly desirable to the biological and medical communities, these molecules are still very challenging targets for chemists. Functionalization, derivatization, controlling anomeric stereoselectivity, purification, and characterization are all existing experimental hurdles towards producing synthetic carbohydrates in large quantities and high purity. Advances in chemistry and biochemistry have certainly facilitated the synthesis …

The Perceptions Of Elementary Stem Schools In Missouri, Kelli Michelle Alumbaugh

Dissertations

Science, technology, engineering, and mathematics education, or STEM, is an area that is currently growing in popularity with educators (Becker & Park, 2011). A qualitative study consisting of interviews was conducted and data were gathered from three leaders in professional STEM organizations, four principals from elementary STEM schools, and six teachers from elementary STEM schools to gain their perceptions of elementary STEM schools in Missouri. The perceptions of leaders in professional STEM organizations regarding STEM education were consistently all positive, and each leader was a proponent of STEM education at the elementary level. The perceptions of principals and teachers were …

Grit And Student Performance: A Mixed-Method Analysis Of A Non-Traditional Technical High School And A Traditional High School, Ronda L. Wallace

Dissertations

Grit, defined as the tendency to pursue long-term goals with sustained zeal and hard work, was shown to predict achievement in academic, vocational, and avocational domains. In 2009, Duckworth and Quinn found that grit predicted student effectiveness in school and the concept of grit was largely unrelated to talent. Grit provided incremental predictive validity for achievement outcomes, particularly in settings of high challenge. From the combination of persistence, self-control, and more broadly, conscientiousness, emerges the concept of grit. The purpose of this study was to compare the relative grittiness of students from two different high school settings. The first of …

Exploring An Accelerated College Program For Adult Learners: A Program Evaluation, Charlene Engleking

Dissertations

Many colleges and universities have expanded their mission to include adult learners. Programs range from scheduling traditional courses in the evening to designing new programs tailored to meet the needs of working adults. Program designers have relied on theorists such, as Mezirow (1991), Houle (1996), and Knowles, Holton, and Swanson (1998), to develop programs that apply adult learning theory. Lindenwood College, now Lindenwood University, established The Lindenwood College for Individualized Education (LCIE) in 1975 to serve adult students in the St. Louis metropolitan area. The program has evolved over the course of 40 years, and this program evaluation evaluated the …

Modeling And Experimental Study Of Carbon Dioxide Absorption/Stripping In Gas Liquid Membrane Contactor, Nihmiya Abdul Rahim

Dissertations

Natural gas consists primarily of methane (CH4) but it also contains considerable amounts of contaminating compounds mainly carbon dioxide (CO2). The presence of CO2 reduces the heating value of the gas and due to its acidic character causes several operational problems. Hence the removal of CO2 from natural gas is crucially important. The focus of this research work is to investigate the potential for the energy efficient and effective separation of CO2/CH4 gas mixture via lean solvent and regenerating of the rich solvent through absorption/stripping mechanism taking place in a hollow fiber gas liquid membrane contactor process (GLMC) which combines …

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 …

Catalyzing Change: Identifying Action To Accelerate Collective Impact Progress In San Bernardino County, Stephanie Houston

Dissertations

The purpose of this study was to identify the most important actions for the implementation of the San Bernardino County Vison using a Collective Impact approach. Collective Impact is a structured approach to problem solving that includes the five core conditions of, common agenda, continuous improvement, shared measurement system, mutually reinforcing activities, and backbone functions. The Delphi technique was used to gather data, perceptions, and opinions from 16 cross-sector leaders identified as experts responsible for the implementation of the San Bernardino County Vision. Survey participants were identified as experts based upon their responsibility as cross-sector leaders engaged in the San …

Adverse Drug Reactions And Resultant Health-Related Quality Of Life During Multidrug-Resistant Tuberculosis Treatment In South Africa, Ana Maria Kelly

Dissertations

The incidence of multidrug-resistant tuberculosis (MDR-TB) is on the rise globally. MDR-TB takes a minimum of 2 years to treat and the treatment regimen produces many adverse drug reactions (ADRs). The World Health Organization (WHO) has called for further research on the treatment of community- based MDR-TB patients as care is being decentralized to outpatient settings. In the WHO's TB progress report for 2015, they note there is a dearth of literature about anti- TB drug-induced mortality, morbidity and loss in quality of life, particularly in low- resource settings.

This study directly addresses this gap in knowledge by examining the …

An Examination Of Workplace Factors Associated With Job Satisfaction Of Generation Y University Professional Staff, Martha Jane Sales

Dissertations

Generation Y staff identified two workplace factors as significant to job satisfaction: promotion and contingent rewards. The Generation Y participants also identified eight workplace factors—pay, promotion, fringe benefits, supervision, contingent rewards, operating procedures, nature of work, and communication—as significant to employee retention. One demographic element, length of time in a current position, was found significant to Generation Y job satisfaction. Although the primary research focus was Generation Y university professional staff, one particular non-Generation Y finding proved relevant to employee retention: nature of work was ranked as the primary factor associated University professional staff make valuable contributions essential to the …