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The Effects Of Language Complexity On Natural And Emotion Concept Formation In Early Language Learners, Stephanie Eileen Jett

Dissertations

The present study investigated the role of language complexity in natural and emotion concept formation ability in young children (two- to five-year-olds). Language complexity was measured by selections from the Brigance Diagnostic Inventory of Early Childhood Development II, and concept formation was assessed at three levels of abstraction. The natural concepts were presented as two alternative discriminations on a touch-screen computer, as follows: subordinate level (lions versus tigers), basic level (cats versus dogs), and superordinate level (animals versus nonanimals). The following emotion categories were discriminated: subordinate level (anger versus sadness), basic level (positive [happiness and positive surprise] versus negative [anger …

The Self-Directedness, Metacognitive Awareness, Self-Efficacy Beliefs, And Grammatical Competence Of College Students Studying Spanish, Juan Guillermo Loaiza

Dissertations

Differential performance is a frequent issue in formal education in general and in second language education in particular. Three variables that may have an effect on college language learners’ performance were identified in the literature on adult education and second language acquisition, namely, self-directed learning, metacognitive awareness, and self-efficacy beliefs. The relationship among those three predictors as well as their relationship with academic performance (in the form of college learners’ grammatical competence in Spanish) was explored using a multiple regression analysis. The statistical analysis showed that none of those three variables predicted learners’ grammatical competence in Spanish. However, participants’ answers …

Spectroscopy And Gas-Phase Binding Of Modified Desferrioxamine B Indicator Displacement-Based Sensors, William Scott Jones

Dissertations

A coupling reaction has been used to successfully synthesize two novel probes utilizing coumarin derivatives as fluorophores. The structure, spectroscopy, and thermodynamics of these probes were characterized and studied. These probes, along with a classical probe using a N-methyl-anthranilate fluorophore, are used to take advantage of the ability of siderophores to coordinate Fe³⁺ ions which is coupled with the attractive phosphorescence properties of lanthanide ions. The use of lanthanide metals to create an indicator displacement assays is a novel application of these probes for the detection of Fe³⁺ ions. The use of Tb³⁺ ions as the indicator …

"This Masterpiece Of Nature:" An Ecocritical Study Of Joseph Conrad's Fiction, Sonja Luther

Dissertations

This dissertation employs an ecocritical approach to explore the relationship between humans and nature in the works of Joseph Conrad. In his fiction, Conrad draws an impression of nature that was unusual for its time because of its complexity. Nature is not just simple scenery or a stage set in Conrad’s fiction; it plays a major role in his characters’ regression, which develops parallel to their alienation from nature. This dissertation explores the origins of man’s alienation from nature in Conrad’s work, particularly his early fiction, and the implications for society if such alienation continues.

Chapter I serves as an …

Fungal Contribution To Carbon And Nutrient Cycling In A Subtropical Freshwater Marsh, Rong Su

Dissertations

Despite the well-known occurrence of emergent standing litter in freshwater marshes, very little quantitative data is available concerning the functional role and contribution of fungal decomposers to litter decomposition or their impact on ecosystem scale carbon and nutrient cycling. In the present study, microbial respiration and seasonal biomass and production rates of fungal decomposers associated with standing plant litter were examined to assess the quantitative contribution of fungi to both fine scale litter decay processes and large-scale ecosystem carbon flow pathways in a subtropical Typha domingensis and mixed Cladium jamaicense/Juncus roemarianus freshwater marsh, respectively. In addition, the growth …

Does Video Game Use Exacerbate The Relation Between Neurophysiological Deficits And Adhd Symptoms In Children And Adolescents?, James Kenneth Goodlad Iii

Dissertations

Attention-deficit/hyperactivity disorder (ADHD) is diagnosed based on behavioral symptoms but is thought to have a significant heritable neurological basis, and several brain structures have been implicated. Recent research has focused on the role of environmental factors that may influence the behavioral expression of inattention and hyperactivity-impulsivity in children and teens, particularly when a biological predisposition exists. This study sought to broaden the literature base by examining the extent to which one environmental factor—video game use—moderated the relation between neuropsychological deficits in attention and inhibition and the behavioral symptoms of ADHD. It was hypothesized that gaming frequency and duration as well …

A Study Of The Teaching Beliefs Of The Modern Post Secondary Science Instructor And Implications They May Hold For The Future Of Science Education, Michael Charles Howard

Dissertations

It was the purpose of this study to examine the teaching beliefs of community college science instructors and discover whether their teaching beliefs were student oriented or instructor oriented. In addition, this study sought to examine demographic factors and find their relation, if any, to these teaching beliefs, as well as explore topics that may be useful in the future to helping community colleges science instructors’ curricula and beliefs come together and work in unison. To do this, the study built on the foundation laid by Sampson et al., in their creation of the Beliefs about Reformed Science Teaching and …

The Influence Of Mileage Club On Females' Body Image And Self-Esteem, Shanda Crowder

Dissertations

No abstract provided.

Resilience And Coping: The Perspectives Of Cancer Patients, Family Caregivers, And Medical Volunteers At Khampramong Monastery, Thailand, Wipanee Su-Kerb

Dissertations

The purpose of this phenomenological study was to explore in-depth experiences of cancer patients, family caregivers, and medical volunteers who engaged in the treatment and services provided at Khampramong Monastery, Thailand, particularly in the areas of resilience and coping. Participants included 21 individuals (eight cancer patients, eight family caregivers, and five medical volunteers). Data collection was conducted at Khampramong Monastery (Thailand) during the summer of 2013 including interviews, field observations, and artifact collections. Moustakas’s (1994) phenomenological method was used for data analysis. Bracketing (Creswell, 1998) was employed to set aside researcher bias. Standards of trustworthiness were employed throughout all phases …

How Do Middle School Core Content Area Teachers In A Title 1 School Use Cooperative Learning In The Context Of High Accountability For Student Proficiency: A Multiple Case Study, Martha Cunigan-Wells

Dissertations

This action research case study describes how content area teachers in a middle school with low reading achievement levels utilize cooperative learning and curriculum integration (with a focus on the integration of literacy skills and thinking skills) in their content area given the current context of accountability for student mastery of tested core content outcomes. The participants were four urban middle school teachers from the core areas of science, social studies, mathematics, and language arts who had varying levels of training and experience with cooperative learning and curriculum integration. Data sources included audio-recorded pre-conferences, video-taped classroom observations, audio-recorded post-conferences, and …

A Monte Carlo Study Of The Optimal Rank Order Relationship With Criterion Scores, Hongyan Cui

Dissertations

Appropriate scoring methods for tests should be based on theories of the construct domains of such tests (Messick, 1989). This is called structural fidelity (Loevinger, 1957), a necessary but not sufficient condition for construct validity (Keith & Kranzler, 1999). A situation reaction test (SRT) consists of items with alternatives to be ranked according to subjects’ best judgment. Traditional rank scoring methods assume unidimensionality, implying one scoring key for each item – a single external criterion. This is not appropriate when items elicit multidimensional responses determined by subjects’ best judgments based on possibly multiple internal criteria. The purpose of this study …

An Examination Of How Feminist Perspectives And Generational Differences Lnfluence The Leadership Practices Of Women Administrators In Higher Education, Marlene Kowalski-Braun

Dissertations

This study explored how feminist perspectives and generational differences influence the leadership practice of women administrators in higher education, specifically, how they lead and create institutional change. It examined the experiences of seven women who identified as feminists, who were part of Generation X, and who were at the mid-level, aspiring to senior-level, or in senior-level positions.

Phenomenology was the qualitative methodology used in this study to uncover how these women made meaning of their feminist and generational identities. The approach was grounded in feminist methodology and utilized feminist standpoint theory to legitimize women as “knowers.” It drew on a …

Working With Medical And Psychological Illness: A Phenomenological Exploration Of Nurses' Experiences In Treating Eating Disorders, Diana Levas-Luckman

Dissertations

Eating disorders (EDs) have become an epidemic within the United States, with medical and psychological consequences that can be lethal. Treatment for these diseases is complex and demanding, requiring an integrated treatment approach by a multidisciplinary team in which nurses play an integral role. Research has demonstrated a wide array of both positive and negative experiences among nurses in traditional medical and mental health settings. Though researchers have assessed nurses' subjective experiences in treating EDs, the literature neglects to focus upon the broader experiences of nurses, including perceived benefits and challenges, in treating both adult and adolescent ED patients. The …

Understanding Dialectical Behavior Therapy Through The Voice Of Adolescent Clients In A Community Mental Health Center, Jessica Riedel Chenoweth

Dissertations

Dialectical behavior therapy (DBT) has recently been shown to be an effective therapy for treating adolescents with suicidal and self-harming behaviors. Despite the growing interest of DBT, there is a lack of research on the subjective experiences of DBT from the perspectives of adolescent clients. Therefore, the purpose of this qualitative study was to explore how adolescents experienced DBT in a community mental health setting. Using constructivist, case study methodology, semi-structured interviews were conducted with nine adolescent participants. Findings emerged from the shared experiences of the participants including themes related to treatment modality, use of skills, and the impact of …

Evaluation Of Novel Κappa Opioid Agonists Alone And In Combination With D-Amphetamine On Locomotor Activity In Sprague-Dawley Rats Evaluation Of Novel Κappa Opioid Agonists Alone And In Combination With D-Amphetamine On Locomotor Activity In Sprague-Dawley Rats, Mary Melissa Peet

Dissertations

Stimulant abuse is a widespread problem that often leads to detrimental health and social consequences. Currently, there are no FDA-approved pharmacotherapies available as a treatment option for stimulant abuse or the prevention of relapse. Drugs targeting kappa opioid receptors (KOR) are under investigation as a potential pharmacotherapy. KOR agonists have been shown to modulate dopamine levels within brain reward pathways, thereby producing anti-addictive effects. Traditional KOR agonists unfortunately tend to produce untoward side effects, including sedation, limiting their therapeutic utility. Structurally different from traditional KOR agonists, salvinorin A (salvA) may produce less sedating effects while still exerting anti-addictive properties. SalvA …

Making Telework Work: The Effect Of Telecommuting Intensity On Employee Work Outcomes, Maria Spilker

Dissertations

The current study examined the effects of telecommuting intensity – the amount of scheduled time that employees spend doing work away from the central work location – on employee outcomes. Results of this study provided insight into how telecommuting intensity relates to turnover intent and supervisor-rated performance through mediating mechanisms of work-life conflict, professional isolation, and Leader-Member Exchange. An online survey instrument was created, and an invitation to participate was sent by e-mail to telecommuters. Each participant was asked to provide an email address for his or her direct supervisor. The supervisor was asked to complete a shortened version of …

Parental Mentoring: An African American Approach To Raising Daughters With Self-Esteem, Qiana Brandy Smith

Dissertations

There is an ample amount of research that documents the positive effect of self-esteem on a child established through an affirmative parental or mentoring relationship, verses a specific parent-mentoring approach designed with a curriculum to enhance the positive self-esteem of African-American daughters based on the relationship with their maternal parent. The purpose of this qualitative study was to answer the following research questions: what strategies and behaviors are used by parents in African-American families to affect the self-esteem of female children and adolescents and, how can strategies and behaviors exhibited by African-American parental mentors be organized in a teachable format …

Depressive Symptomatology And Perceived Social Support In Adolescents With Type 2 Diabetes, Kristiana Gay Huffman Cullum Phd, Cpnp

Dissertations

Type 2 diabetes has increased dramatically in the pediatric population in the last decade. One of the comorbidities of diabetes is depression. In the presence of depression, diabetes may be mismanaged by patients and lead to a decline in health. Diabetes with comorbid depression may have better disease management outcomes in the presence of higher levels of social support. Defining childhood depression, which encompasses adolescence, and the subtleties of this disorder compared to the adult counterpart, was needed to better delineate important variables for this research study. There are several instruments that evaluate adolescents' perceived social support, but a fairly …

It’S In The Mix. An Exploratory Study Into The Experiences Of Children, Parents And Staff In The Provision Of A Mixed Age Group Model In A West Dublin Early Years’ Setting., Helena Goodwin

Dissertations

The main aim of this study is to explore the perceptions and experiences of children, parents and staff participating in a mixed-age model of early year’s provision using a qualitative approach. The researcher will take an approach which will aim to interpret and clarify the participant’s experiences.

Using semi-structured interviews, a focus group and an observation of practice the study will address questions such as what were the perceptions of the children, staff and parents experiencing a mixed age group model. Has the mixed-age model proved to be advantageous and/or challenging to the community of the service? How could the …

Skin Cancer Risk Perception And Sunscreen Use In Adolescent Female Soccer Athletes, Cheryl L. Butera Phd, Msn, Aprn, Fnp-Bc, Np-C, Phn

Dissertations

Over 3.5 million cases of skin cancer are diagnosed annually in the United States. In adolescent females ages 15-19, melanoma is the second most common form of cancer. The greatest risk factor for skin cancer is ultraviolet rays from the sun. Research has shown that sunscreen use is protective of all skin cancers, especially melanoma. The purpose of this study was to obtain perceptions about risk of skin cancer and sunscreen use among 13- to 18-year-old adolescent female club soccer athletes as a basis for effective interventions to improve sunscreen use in this population. The Health Belief Model was employed …

A Study Of Serious Violent And Sexual Offenders Released On Supervised Licence In Northern Ireland Between 2010 And 2013., Alexandra Delimata

Dissertations

Extended Custodial Sentences for serious offenders were introduced under the Criminal Justice (Northern Ireland) Order 2008. Recall rates for these offenders appear disproportionately high compared with other types of public protection sentenced offenders in Northern Ireland. Guided by life-course theories and using mixed methods of quantitative and qualitative research, the study investigates the outcomes for ECS offenders released into the community between 2010 and 2013. Content analysis developed profiles of all (N=57) ECS offenders released under supervised licence by 31 December 2013 and examined characteristics of recalled (N=31) and non-recalled (N=26) offenders to identify possible contributing factors to recall. The …

A Study Of Alternative Education Programs In The State Of Missouri, Ronald Joshua Ladd

Dissertations

The focus of this study was to examine the characteristics of alternative programs in the state of Missouri and to determine whether a statistical difference in the persistence to graduation rate existed between the two variations of programs. When identifying the characteristics, several commonalities emerged. These commonalities could be the focus of future studies to determine a list of best-practices among alternative programs. When focusing on the statistical element of this study, the two programs in question were revolving door and one-way programs. For the purpose of this study, a revolving door style program was defined as one that assesses …

Discrepancies In Discipline Of Middle School Students By Gender: A Comparison Of Principal Candidates’ Responses To Vignettes, And Teacher Perceptions, Jill Lukefahr-Farrar

Dissertations

Discipline in schools exists so that there are guidelines to ensure safety and learning. Administrators and teachers give students consequences based upon discipline guidelines made by the school districts’ board of education. The discipline administered can be subjective. In a suburban mid-western school district, alarming trends in the amount of discipline referrals of male students both in the primary investigator’s middle school and in the other middle schools within the researched district were recognized. The purpose of this mixed methods study is to analyze and understand if gender discrepancies exist in discipline for middle school students among aspiring administrators, practicing …

Deciding On Science: An Analysis Of Higher Education Science Student Major Choice Criteria, Stephen Wilson White

Dissertations

The number of college students choosing to major in science, technology, engineering, and math (STEM) in the United States affects the size and quality of the American workforce (Winters, 2009). The number of graduates in these academic fields has been on the decline in the United States since the 1960s, which, according to Lips and McNeil (2009), has resulted in a diminished ability of the United States to compete in science and engineering on the world stage. The purpose of this research was to learn why students chose a STEM major and determine what decision criteria influenced this decision. According …

Evaluation Of Environmental Materials As Thermal Witness Materials, Shashank Vummidi Lakshman

Dissertations

New and complex energetic materials are under development for achieving tunable pyrotechnical events for applications such as neutralization of biological weapons, bunker busters and many others. To guide the development of hybrid materials, the pyrotechnical environment they produce requires higher degree of characterization i.e. good description of spatial and temporal temperature distribution.

Temperature measurements in pyrotechnical events are especially challenging, where the temperature of the environment rises more than 2000 K on microseconds to few milliseconds time scale. These environments produce high thermal stress where traditional sensors like thermocouples, optical pyrometers struggle to describe the dynamic changes in the environment. …

Novel Scrubbing Systems For Post-Combustion Co2 Capture And Recovery, Tripura Mulukutla

Dissertations

Power plant emissions of flue gas releases considerable CO₂ to the atmosphere; CO₂ is considered to be the main contributor to global warming. Several gas absorption techniques are being investigated to reduce the capital and operating costs for CO₂ capture from post-combustion flue gas. Conventional method of CO₂ capture by an aqueous solution of monoethanolamine (MEA) and its subsequent stripping in a separate tower with steam at 120°C, is a highly energy intensive process. The low partial pressure of CO₂ in the flue gas inhibits the application of CO₂-selective membranes unless methods are …

The Experience Of Reducing Environmental Risks In An Environmental Justice Community, Gabriela Dory

Dissertations

Research on Environmental Justice (EJ) communities has focused on quantitative assessment of environmental hazards and general physical health problems. Little is known about how individuals living in EJ communities perceive their environmental risks and how they reduce environmental risks. The purpose of the study is to explore and describe the perceived environmental risks and the experience of reducing environmental risk among individuals living in an EJ community.

A qualitative and longitudinal design with a descriptive phenomenological method is used to recruit 23 participants living in a known EJ community in the urban area of New Jersey. A total of 43 …

Ignition Mechanism In Nanocomposites Thermites, Rayon Williams

Dissertations

Nanocomposite thermites (n-thermites) have been actively investigated for a wide range of potential applications including propellants, explosives, and pyrotechnics. There have been several recent efforts aimed at understanding ignition mechanisms of nanocomposite reactive materials. Although significant progress has been made, ignition mechanisms remain elusive. At the same time, a robust ignition model is required to incorporate these materials in practical energetic formulations. A challenge of this effort is to describe the mechanisms of ignition of n-thermites prepared by Arrested Reactive Milling (ARM) with different stimuli, including heat, spark and impact and also develop a multi-step kinetic model describing different processes …

Synthesis And Characterization Of Metal-Based Reactive Powders, Yasmine Aly

Dissertations

Aluminum added to propellants, explosives, and pyrotechnics, boosts their energy density. Different approaches were investigated that could shorten aluminum ignition delays, increase combustion rates, and decrease the tendency of aluminum droplets to agglomerate. Here, Al-based reactive, mechanically milled materials are prepared and characterized.

For powders with Fe, Ni, or Zn additives, the particles consist of an aluminum matrix and inclusions of Fe, Ni, or Zn comprising 10 at % of the bulk composition. For additives of Ni and Zn, only short milling times can be used to prepare composites; intermetallic phases form at longer milling times. Thermogravimetric analysis shows selective …

Provider Perception Of Patient Satisfaction If Antibiotics Are Not Given For Upper Respiratory Infection, Robyn Doniel Drake

Dissertations

The purpose of this project was to assess if advanced practice nurse practitioners perceived patient satisfaction of patients seen in Metropolitan Retail Clinics was improved after educational materials were given to explain when antibiotics work. I hypothesized that provider perception of patient satisfaction would decrease unnecessary prescribing of antibiotics after providing patient education? This project used questionnaires to collect data from control and intervention groups to demonstrate a gain in provider perception if patient satisfaction after education was given in the intervention group. The results of this project did not reveal to the primary investigator what was originally assumed, that …