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Environmental Reforestation And Social Justice In Cameroon: A Test Case For Pope Francis' Concept Of 'Integral Ecology' In Laudato Sí, Augustin Vondou

Dissertations

The following quotation from Pope Francis' encyclical Laudato Sí is one of the most quoted parts of his well-known encyclical: We are faced not with two separate crises, one environmental and the other social, but rather with one complex crisis which is both social and environmental. Strategies for a solution demand an integrated approach to combating poverty, restoring dignity to the excluded, and at the same time protecting nature (139).

This is a very challenging statement. Not everyone accepts this idea of an ‘integral ecology’; that is, the notion that the condition of human society is directly linked to the …

Promoting Early-Adolescent Dual Language Learners' Language Use & Reading Skills, Holly Griskell

Dissertations

Most studies of Dual Language Learners’ (DLLs’) literacy development focus on the early childhood years. As such, this three-study dissertation sought to advance our knowledge of DLLs’ English language and reading comprehension skills during early adolescence, a developmental stage when many students struggle with reading. Study 1, “Classroom Discussion and Early-Adolescent Dual Language Learners’ Motivation and Reading Comprehension”, considered how features of the classroom language environment promote DLLs’ reading comprehension skills. We examined relations between students’ (N = 413; M age = 11.66-years-old) engagement in high-quality classroom discussions and reading comprehension as a function of their motivation to participate in …

Ethical Health Care In An African Context: Linking Conventional Medicine And Traditional Healing Practices In Igboland, Nigeria., Michael Osondu Okoro

Dissertations

This dissertation argues that in Nigeria’s Igboland, a health care ethic reflective of the Roman Catholic Christian faith must build links between the rightful practices of both conventional Western medicine and traditional Igbo healers. It calls such a health care ethic an “integral health care ethic” in the Nigerian Igbo context.The inspiration for this dissertation comes from the growing respect given to indigenous people and their knowledge by the Roman Catholic Church since the Second Vatican Council and, more specifically, the attention Pope Francis has given to indigenous people in his writings and speeches. For example, in his remarks on …

An Exploratory Analysis Of Conflict In African Immigrant And African American Marriages, Cornelius Ayodeji Osuntade

Dissertations

Problem

There has been a high level of marital conflict in immigrant families from patriarchal cultures. There are negative attitudes toward women that contribute to couple conflict. Coupled with this are issues relating to immigration challenges that confront marriage stability among immigrant couples in North America. In the same vein, African American couples experience conflicts that militate against the stability of their marriages. Most of these marital upheavals stem from historical antecedents relating to this ethnic group, as well as the societal dialectics confronting them. By and large, regarding couple conflict, a better understanding of the challenges facing African immigrant …

Family, School And Community Educational Partnerships: Development Of A Comprehensive Program For The United Arab Emirates, Sherin M. Abu Shamon

Dissertations

Family, school and community educational partnerships (FSCEPs) contribute significantly to the development and growth of students. In the United Arab Emirates (UAE), this has not received due consideration. This study aimed to evaluate current FSCEPs practices and develop a comprehensive, culturally appropriate program for the UAE. A three-phase mixed method design was used: exploratory sequential design phase, developmental phase using the Delphi Method, and a pilot to test the proposed model. Structured and semi-structured interviews, observation and case study surveys were used to investigate current FSCEPs implementation; barriers and opportunities influencing practices and partnerships, and recommendations from participants. Data was …

Molecular Mechanism Of Cyanobacteria Circadian Clock Oscillator And Effect Of Co Factors On Its Oscillation, Manpreet Kaur

Dissertations

The circadian rhythms arise as an adaptation to the environmental 24-hour day and night cycle due to Earth's rotation. These rhythms prepare organisms to align their internal biological activities and day to day behavior or events with the environmental change of the 24-hour day and night cycle. Circadian rhythms are found widely in all living kingdoms of life on Earth. Cyanobacteria are photosynthetic prokaryotes which first used to study these circadian rhythms. Among cyanobacterial species, Synechococcus elongatus PCC 7942 (henceforth, S. Elongatus) is the simplest organism with a durable and sturdy circadian clock and is study as a model organism. …

Development Of Novel Inks And Approaches For Printing Tissues And Organs, Shen Ji

Dissertations

Tissue engineering is a multidisciplinary field that investigates and develops new methods to repair, regenerate and replace damaged tissues and organs, or to develop biomaterial platforms as in vitro models. Tissue engineering approaches require the fabrication of scaffolds using biomaterials or fabrication of living tissues using cells. As the demands of customized, implantable tissue/organs are increasing and becoming more urgent, conventional scaffold fabrication approaches are difficult to meet the requirements, especially for complex large-scale tissue fabrication. In this regard, three-dimensional (3D) printing attracted more interest over the past decades due to its unrivaled ability to fabricate highly customized tissues or …

Human-Robot Interaction For Assistive Robotics, Jiawei Li

Dissertations

This dissertation presents an in-depth study of human-robot interaction (HRI) withapplication to assistive robotics. In various studies, dexterous in-hand manipulation is included, assistive robots for Sit-To-stand (STS) assistance along with the human intention estimation. In Chapter 1, the background and issues of HRI are explicitly discussed. In Chapter 2, the literature review introduces the recent state-of-the-art research on HRI, such as physical Human-Robot Interaction (HRI), robot STS assistance, dexterous in hand manipulation and human intention estimation. In Chapter 3, various models and control algorithms are described in detail. Chapter 4 introduces the research equipment. Chapter 5 presents innovative theories and …

Experiments And Modeling Of The Chemo-Mechanically Coupled Behavior Of Polymeric Gels, Nikola Bosnjak

Dissertations

Polymeric materials consist of mutually entangled or chemically crosslinked long njitmolecular chains which form a polymer network. Due to their molecular structure, the njitpolymeric materials are known to undergo large deformation in response to various njitenvironmental stimuli, such as temperature, chemical potential and light.

When a polymer network is exposed to a suitable chemical solvent, the solvent molecules are able to diffuse inside the network, causing it to undergo a large volumetric deformation, known as swelling. In addition to volumetric deformation, this process involves the chemical mixing of the polymer network and solvent molecules, and is typically environmentally responsive. A …

Characterizing Reactive Iron Mineral Coatings And Their Roles In Natural Attenuation At A Site With Historical Contamination, Han Hua

Dissertations

Reactive iron mineral coatings in redox transition zones play an important role in contaminant attenuation. These mineral coatings include poorly crystalline to crystalline iron sulfides, carbonates, and oxyhydroxides, and are a signature of the biogeochemical processes occurring. To better understand these processes, reactive iron mineral coatings are characterized in an 18-m Anaerobic Core collected from a contaminated industrial site. This study targets redox transition zones uncovered in the core. A suite of complementary analyses is applied to distinguish the surface coating mineralogy using X-ray Diffraction, X-ray fluorescence, and field-emission scanning electron microscopy (FESEM) with energy dispersive X-ray analyzer (EDX). In …

The Stability Of Nanobubbles And Its Application In Contaminated Sediment Treatment, Shaini Dilsha Aluthgun Hewage

Dissertations

This dissertation consists of two sections. First, nanobubbles' stability and behavior are studied using experimental and theoretical approaches. Second, nanobubbles application combined with ultrasound to remediate contaminated sediments is discussed.

The stability study consists of four sections. (i). Laboratory investigation to determine bubble size distributions and zeta potentials for different gases, pH levels, temperatures, and salt conditions. (ii). A theoretical study based on the diffused double layer theory to explain nanobubbles' behavior in different NaCl concentrations. (iii). Nanobubbles' stability in electrolyte solutions under different ion valencies using deionized water, NaCl, Na₂SO₄, Na₃PO₄, …

Blast Shock-Wave Characterization In Experimental Shock Tubes, Sudeepto Kahali

Dissertations

Blast-induced traumatic brain injuries have affected U.S. soldiers deployed for extended periods in the gulf and Afghanistan wars. To identify the biomechanical and biochemical mechanisms of injury, critical in the identification of diagnostic and therapeutic tools, compressed gas-driven shock tubes are used by investigators to study shockwave-animal specimen interactions and its biological consequences. However, shock tubes are designed and operated in a variety of geometry with a range of process parameters, and the quality of shock wave characteristics relevant to field conditions and therefore the study of blast-induced traumatic brain injuries suffered by soldiers is affected by those conditions. Lab-to-lab …

Novel Applications Of Mass Spectrometry For Quantitation And Reaction Mechanism Elucidation, Pengyi Zhao

Dissertations

Mass spectrometry (MS) has been growing as one of the most widely used tools in the field of analytical chemistry. Various applications have been developed to harness the high sensitivity and specificity of mass spectrometric analysis. In this dissertation, two major challenges are addressed. By developing mass spectrometric-based methods, absolute quantitation of proteins/peptides have been achieved. Elucidation of various reaction mechanisms are also enabled. These are the focuses of this dissertation.

In Chapters 2 to 4, a novel quantitation method is developed, titled as coulometric mass spectrometry (CMS). The strength of this method is that no reference standard or isotope-labeled …

Saudi Elementary Mathematics Teachers’ Knowledge For Teaching Fractions, Mona Khalifah A Aladil

Dissertations

Recent reform efforts in Saudi Arabia attend to mathematics instruction with a great deal of emphasis to improve Saudi mathematics education. Studies in different countries have confirmed that teachers’ mathematical knowledge for teaching plays an important role in mathematical quality of instruction and students’ achievement (e.g., Ball, 1990; Baumert et al., 2010; Hill, Rowan, & Ball, 2005). Yet few studies about mathematics teachers’ knowledge for teaching have been conducted in the Saudi context. This study investigates Saudi elementary mathematics teachers’ knowledge for teaching in the content strand of rational numbers with an emphasis on fractions, which is an important step …

Exploring The Relationships Between And Among Registered Nurses' Spiritual Well-Being, Spiritual Care Perspectives, And Their Provision Of Spiritual Care In Acute Care Settings, Barbara J. Kitchener

Dissertations

Despite acknowledgment that spiritual care is an essential aspect of holistic nursing care, nurses often feel ill-prepared for, uncomfortable with, and uncertain about providing spiritual care. Studies have indicated that nurses who have a strong sense of their own spiritual well-being and/or a positive perspective [attitude, value, belief] about spiritual care are more inclined to provide spiritual care to their patients. However there is a scarcity of such studies among acute care nurses. This descriptive correlational study aimed to explore relationships between and among acute care nurses' spiritual well-being (SWB), spiritual care perspectives (SCP), and their provision of spiritual care …

Linking Police Attitude To Behavior In Interactions With Mentally Ill Consumers, Raymond Wooten

Dissertations

In this project, the author aimed to examine law enforcement officer attitude and behavior toward individuals with serious mental illness. There were two distinct sections of this project; one quantitative and one qualitative. For the quantitative portion, one hundred fifty four (N = 154) officers completed an online questionnaire providing information on their attitude toward individuals with serious mental illness in a variety of contexts. The questionnaire also generated information regarding officers’ general knowledge of mental illness, their level of contact with individuals with mental illness, and their desired social distance from individuals with mental illness. In the qualitative portion, …

A Library Of Low Molecular Weight Fluorescent Probes For The Detection Of Cu(Ii) And Fe(Iii) Ions, Ashley Johnson

Dissertations

This dissertation reports the synthesis and photophysical properties of a family of rhodamine dyes (compounds 3.9-3.13 and 4.6). The rhodamine dyes are prepared in two steps, and fully characterized by ESI-MS (Low and High resolution), X-Ray crystallography, NMR spectroscopy, and FT-IR spectroscopy. The coordination environment of the low molecular weight fluorescent probes (LMFPs) was systematically changed to investigate the thermodynamic behavior between the LMFPs and an array of metal ions (Cu²⁺, Fe²⁺, and Hg²⁺ ions) in protic and aprotic solvent systems. Upon coordinating to metal ions, the π-conjugation of the LMFPs changed, resulting in …

A Focus Group Study Of Adult American Males On Hemodialysis As Captured Through Photovoice, Donna Sanders

Dissertations

Chronic diseases pose a significant burden on the United States (U.S.) healthcare system (Centers for Medicare & Medicaid Services [CMS], 2019). The Center for Disease Control and Prevention (CDC) projects that chronic diseases will affect an estimated 164 million Americans by the year 2025, which accounts for approximately half of the nation’s population (CDC, 2017). Nearly 90% of the nation’s $3.5 trillion in annual healthcare expenditures are for individuals with chronic and mental health conditions (Buttorff et al., 2017; CMS, 2017).

The purpose of this qualitative study was to investigate the lived experiences of adult African American males on hemodialysis …

Hemodynamic Response During Sedentary Behavior In Black/African American And White Males, Raymond Jones

Dissertations

Emerging evidence suggests that uninterrupted sitting has a deleterious impact on hemodynamics, namely a reduction in blood-flow induced shear stress in peripheral vessels, which leads to vascular dysfunction and increased arterial stiffness. Few studies have examined the cerebrovascular response, and no studies have discerned potential racial differences on the hemodynamic response to uninterrupted sitting. Purpose: To examine racial differences in the hemodynamic response during an acute period (1-hour) of uninterrupted sitting between Black/African American and White males. Methods: Twenty-four adult males (50% Black/African American) between the ages of 18 and 35 years and relatively healthy (i.e., free of …

Transformers: The Relationship Between Instructor And Course Persistence Among Community College Students, Jairus L. Johnson

Dissertations

U.S. community colleges play a unique role in providing higher education opportunities for members of society and are often viewed as the gateway to a post-secondary education (Savi, 2011). Two-year colleges foster a robust mission that is supported by a variety of curricular functions that tailor to a diverse student population. Furthermore, through an open-door policy, admittance only requires a high school diploma or equivalent. The aforementioned factors have created inherent challenges associated with student persistence, institutional retention, program completion, and graduation rates among community colleges. As compared to universities, community colleges have lower graduation and retention rates.

Researchers suggest …

An Examination Of The Influence Of Multi-Scale Processes And Connectivity On The Population And Assemblage Dynamics Of Headwater Fishes, Josh P. Hubbell

Dissertations

Typified by their branching pattern, headwaters are numerically abundant as the density of these habitats increases with increasing distance from the base of a dendritic river system. Connectivity among headwaters is complex, resulting in the spatial isolation of populations. Headwater specialists have evolved a suite of traits that permit these species to permanently reside within these habitats. The spatial configuration and connectivity of headwaters has repercussions for metapopulations and meta-assemblages. I investigated how multi-scale processes and connectivity influenced the patch occupancy, coexistence, movement ecology, population structure, and gene flow of headwater specialists. In chapter two, I used occupancy modeling to …

Public Relations Education In Mississippi Today: Perceptions And Realities, Gail Brown

Dissertations

This two-component study assessed public relations educators’ (n=18) and public relations practitioners’ (n=53) perceptions and realities of public relations education in Mississippi today. A Qualtrics-designed survey ascertained the quantitative data for Study I (N=71). The researcher used telephone and email interviews to gather qualitative data from a convenience sample (N=10) of five public relations practitioners and five public relations educators for Study II. The dual study used education recommendations from the Commission on Public Relations Education (CPRE) 2017 Report, Fast Forward: Foundations and Future State. Educators and Practitioners, as assessment variables.

The survey was distributed to the Public Relations Association …

Frames Of Error: Three Behavioral Approaches To Reducing Stigma Towards People With Disabilities, Rocco Giovanni Catrone

Dissertations

What makes a person disabled is a much-debated topic with some focusing on the individuals impairments (putting the onus of disability on the individual) while others focus on how the environment (both architectural and social) exacerbates an individual’s impairments and creates the conceptualization of disability (putting the onus of disability on society). No matter how a person with a disability (PWD) is categorized, they are met with healthcare, education, and work disparities that are perpetuated both unintentionally and intentionally. This paper examines the various ways disability and subsequently stigma arises from a variety of viewpoints both within and outside the …

An Evaluation Of The Trauma-Informed Approach Implemented At A Title I Elementary School, Aleli Vazquez

Dissertations

An Evaluation of the Trauma-Informed Approach Implemented at a Title I Elementary School assesses the merits of the implementation of an intervention to support the social emotional ability and stability of students within elementary schools; called the Trauma Informed Approach. Many children attending elementary schools bring diverse and complex experiences to the classroom setting. Students with multiple adverse childhood experiences attend the educational system. Many students have a more difficult time concentrating and succeeding due to anxiety and lack of physiological needs being met. These needs must be met to secure positive learning gains for these students.

For data gathering …

An Evaluation Of One School District Standards Assessment Program, Derrick King

Dissertations

This project focuses on how one school district uses quarterly assessments to identify standards students have not mastered. This project identifies how some schools utilize quarterly assessment data with varying results. One problem I have identified is a lack of a consistent expectation from district leadership, regarding the expectation for how schools should use the assessment program. In my research, I examine two schools that use the assessment program differently. The literature I present reveals how the program can help improve student achievement. The research reveals what is working well, and what is not. In closing, I recommend implementing a …

Disordered Eating Among Nonbinary Individuals, Marilyn Chung

Dissertations

Research on influences of eating disorders have informed diagnosis and treatment of eating disorders, particularly for White cisgender women. A Perfect Biopsychosocial Storm is a theory of influences of disordered eating development: sociocultural influences of rigid body shape and size ideals, high rates of trauma and violence, experiences of objectification and sexualization, and biological changes (Maine & Bunnell, 2010). For transgender individuals, recent findings suggest disparities and negative mental health outcomes such as elevated prevalence of disordered eating, body image concerns, and self-reported disordered eating. For transgender men and women, researchers found that disordered eating may be related to attempts …

An Intensive Longitudinal Functional Lineary Model With Multiple Time Scales, Mostafa Zahed

Dissertations

In this study an intensive longitudinal functional model with multiple time-varying scales with scalar outcome, multiple functional predictors, one or more scalar covariates and subject-specific random intercepts through mixed model equivalence was proposed. The framework consists of estimating a time-varying coefficient function that is modeled as a linear combination of time-invariant functions with time-varying coefficients. The model uses information structure of the penalty, while the estimation procedure exploits the equivalence between penalized least squares estimation and a linear mixed model representation. The process is empirically evaluated with several simulations. The simulation suggested that as the sample size and level of …

A Management Strategy Evaluation Of The Impacts Of Interspecific Competition And Recreational Fishery Dynamics On Vermilion Snapper (Rhomboplites Aurorubens) In The Gulf Of Mexico, Megumi C. Oshima

Dissertations

In the Gulf of Mexico (GOM), Vermilion Snapper (Rhomboplites auroruben), are believed to compete with Red Snapper directly for prey and habitat. The two species share similar diets and have significant spatial overlap in the Gulf. Red Snapper are thought to be the dominate competitor, forcing Vermilion Snapper to feed on less nutritious prey when local resources are depleted. In addition to ecological pressures, GOM Vermilion Snapper support substantial commercial and recreational fisheries. Over the past decade, recreational landings have steadily increased, reaching a historical high in 2018. One cause may be stricter regulations for similar target species such as …

Does Socioeconomic Status Influence Students’ Postsecondary Plans?, Brian A. Young

Dissertations

The purpose of this study was to examine whether or not socioeconomic status (SES) influenced high school students’ plans for continuing their learning after high school. This study collected data via an online survey and a sample size of 343 participants from three comprehensive public high schools. A hierarchical logistic regression was conducted and found to be statistically significant. The variables of gender, race, and SES were found not to be significant predictors of having a postsecondary plan, but grade point average (GPA) was a significant predictor. The results failed to reject the null hypothesis, meaning household SES was not …

Perceived Servant Leadership Behaviors And Employee Outcomes In National Collegiate Athletic Association Division Iii, Athletics Departments The Moderating Role Of Trust-In-Leader And Organizational Tenure, Sean Fletcher Daly

Dissertations

ESPN reported that in the 2016–2017 academic year, the National Collegiate Athletic Association (NCAA) surpassed $1 billion in revenue (Rovell, 2018). Trends in revenue and business models have caused scholars, educators, and professionals to call for a reform of how collegiate sport organizations are led (Lapchick et al., 2013; Lopiano & Gurney, 2014). Some believe servant leadership (Greenleaf, 1977) is the answer (Burton & Peachey, 2013; Dodd et al., 2018). Research studies on servant leadership in the sporting context have found it has a positive impact on the development of an ethical climate (Achen et al., 2019; Burton et al., …