Digital Commons Network^™

The Effect Of Stress And Perceived Social Support On Job Satisfaction: A Comparison Between U.S Born And Foreign-Born Faculty, Lisa Owen

Dissertations

Research indicates that academic work-stress is a significant and growing problem for faculty members. General work-stress studies suggest that social support may buffer the negative impact of stress on faculty job satisfaction. To date, little research has been conducted in this area. Even fewer studies have examined the potential differences between U.S.-born and foreign-born faculty members regarding these variables. This quantitative, non-experimental multivariate study utilized a survey to assess academic stressors, perceived departmental social support, and job satisfaction at a large U.S. university. The surveyed institution consisted of 807 full-time faculty members. The three-week survey yielded a response rate of …

Relationships Between Wellness-Related Behaviors And Academic Performance, Helene M. Alfano

Dissertations

This study investigated possible relationships between specific wellness-related behaviors and academic achievement by using self-reported data from the 2009 Michigan Youth Risk Behavior Survey (MYRBS). Participants were students from 50 public high schools in Michigan in grades 9 through 12 (N = 3,411). Survey responses were analyzed with an ordinal logistic regression procedure using SPSS software. Beyond the control model, the block of variables on (a) diet explained 9.3% of the variance in the outcome measure, an additional amount of variance that was statistically significant and practically important. Each of the remaining blocks, including (b) physical activity, (c) self-perception of …

Formation Of Successful Partnerships Between Rural Community College Workforce Development Offices And Businesses: Motivation, Social Capitaland Communication, Ryan Nausieda

Dissertations

The financial resources in rural areas are not plentiful, which has impacted the workforce development offices’ ability to provide training on their own. These workforce development offices rely on partnerships to provide training to the community. There are multiple motivations that align between workforce development office and community organizations. The social capital in a partnership is utilized in these rural areas to accomplish mutual goals between multiple organizations that one could not complete on alone. Social capital in a partnership includes trust, centrality, information, and density. Communication helps to support the motivation, social capital and hence the sustainability of a …

Relationship Between Age And Pre-End Stage Renal Disease Care In Elderly Hemodialysis Patients, Rubette Harford Phd, Msn, Rn

Dissertations

Purpose: The primary purpose of this dissertation was to examine the relationship between age and receipt of three components of pre-end stage renal disease care prior to first initiation of hemodialysis, and to explore the implications of differences in interpretation of funding policies for dialysis services in Puerto Rico and the U.S. mainland. Background: The growing burden of chronic kidney disease (CKD) is a national public health concern, particularly within the aged population. It is estimated that more than 25 million Americans are living with some level of kidney disease, with an increasing prevalence noted with increasing age (Coresh et …

High School Graduation Coaches: Supporting At-Risk High School Students, Heather Elise Dunnavant

Dissertations

This study investigated the effectiveness of a new dropout prevention program, Project WALK, which was launched at a low-income high school in Missouri during the 2012–2013 school year. After examining alarming dropout statistics, Washington High School chose 40 students to participate in a new program, Project WALK, which was designed to use graduation coaches to improve at-risk students’ performance. The program’s six graduation coaches formed relationships with at-risk students, monitored student progress, and consistently communicated with parents, teachers, and school administrators about the at-risk students. The researcher, an administrator at the school, gathered quantitative data to measure the effects of …

The Connection Program: An Examination Of One Developmental Education Program, Katherine Grace Craft

Dissertations

Developmental education continues to be an area of concern for higher education institutions. Understanding and developing programs to provide support and increase retention, completion, and success rates for developmental education students is vital to increasing degree attainment in the United States. This study explored one developmental education program at a Midwest community college implemented in 2011. A mixed-methods approach was executed to compare completion and success rates two years prior to implementation and two years following implementation, as well as to obtain qualitative information regarding perceptions of the program. Quantitative data analysis revealed increases in developmental education rates for qualifying …

Psychological And Genetic Contributions To The Development Of Social Cognition In Children, Jacqueline Marie Klaver

Dissertations

This study examined the development of social cognition in children with and without autism spectrum disorder (ASD), as well as the influence of behavioral and molecular genetics on these higher-order cognitive abilities. Specifically, it was hypothesized that children with ASD would perform more poorly on all social cognitive tasks compared with typically developing peers. In addition, it was hypothesized that typically developing children who performed better on a simpler social cognitive task at ages 3 or 4 would perform better at follow-up (i.e., one time between the ages of 6-10). Lastly, it was hypothesized that children who had at least …

Low-Power Low-Voltage Analog Circuit Techniques For Wireless Sensors, Chenglong Zhang

Dissertations

This research investigates lower-power lower-voltage analog circuit techniques suitable for wireless sensor applications. Wireless sensors have been used in a wide range of applications and will become ubiquitous with the revolution of internet of things (IoT). Due to the demand of low cost, miniature desirable size and long operating cycle, passive wireless sensors which don't require battery are more preferred. Such sensors harvest energy from energy sources in the environment such as radio frequency (RF) waves, vibration, thermal sources, etc. As a result, the obtained energy is very limited. This creates strong demand for low power, lower voltage circuits. The …

Clarifying The Definitional Boundaries And Essential Characteristics Of Impaired Counseling Students: A Delphi Study, Lisa K. Forbes

Dissertations

No abstract provided.

Fabrication, Testing And Analysis Of A Fatigue Sensor For Structural Health Monitoring, Subash Gokanakonda

Dissertations

A novel fatigue monitoring sensor (FMS) is designed, fabricated and tested for detecting and monitoring the fatigue damage and estimating the remaining life of structures and components subjected to cyclic loads. The concept is based on the characteristics of stress / strain life cycle relationship of engineering materials. Sensor consists of alternate slots and strips having different strain magnification factor with respect to the nominal strain. The sensor is designed in such a way that the strips will experience the strain which closely resemble the actual strain distribution in the notch or critical area of the component. The sensor can …

From Teachers' Control Of Curricula To Curricula's Control Of Teachers: An Analysis Of Loss Of Autonomy In The Lnstructional Labor Process, Joseph Daniel Abbott Jr.

Dissertations

This dissertation explores how the labor process of public school teaching, a white-collar profession, is deskilled. In a content analysis of English/language arts teacher’s manuals and teacher’s editions of student textbooks, I examine public school teachers’ degree of autonomy from an objective, macro-analytical perspective. Applying Harry Braverman’s (1974) theory of the degradation of the modern worker under monopoly capitalism, I explain how teacher deskilling reflects structural factors in the work context that prevent teachers from accessing their professional and personal skill sets via the separation of conception and execution in the instructional labor process.

The formal curricula drive the teaching …

Place-Based Education: An Impetus For Teacher Efficacy, Tamara Chase Coleman

Dissertations

This research investigated professional development in place-based (PB) methodology on the efficacy of science teachers. While teachers are expected to use best practices they do not always implement them due to a lack of efficacy in implementation. A professional development program (PD) was designed to increase confidence among teachers planning to incorporate PB methods. Place-based education (PBE) is recognized as a best-practice among professional educators. PBE includes the selection, design and engagement with science using the geographic place as the content. The literature reports that student learning and teacher efficacy will improve when teachers are prepared effectively in PB practices. …

Three Essays On Gender Differences On Risk Preferences And Credit Market Constraints, Jyoti Rai

Dissertations

The disadvantages that women face in the financial market hamper their social and economic well-being. These disadvantages may arise from their own risk preferences or from financial market. The aim of this dissertation is to examine different aspects of the disadvantages that women face in the U.S Financial Market. In that light, I present three essays that analyze gender differences in risk preferences and credit market constraints. I use the Survey of Consumer Finances (SCF) data for all my empirical analysis.

In the first essay, I examine whether women exhibit greater financial risk aversion than men using attitudinal and behavioral …

Magnetic Nickel Nanoparticles: Synthesis, Environmental Lmplications And Potential Role As Drug Carriers, Setare Tahmasebi Nick

Dissertations

The design and synthesis of well-defined magnetic particles with nanoscale dimensions is opening new avenues in understanding their fundamental chemical and physical properties. Our work describes a novel facile procedure for the synthesis of homogenous isotropic and anisotropic magnetic nickel nanoparticles. These nanoparticles were produced using a wet-chemical process and characterized by transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), selected-area electron diffraction (SAED), powder x-ray diffraction (XRD), energy dispersive spectroscopy (EDS) and thermogravimetric analysis (TGA). Magnetic measurements were acquired using a superconducting quantum interference device (SQUID) magnetometer. While there is significant interest in using magnetic nanoparticles for biological …

The Natural Resource Curse In Sub-Saharan Africa: Transparency And International Initiatives, Meaza Zerihun Demissie

Dissertations

The Sub-Saharan Africa (SSA) region has become a classic case of the resource-curse phenomenon characterized by the abundance of natural resources, low economic development, and misuse of natural resources. Economic-development experts debate ways to overcome or avoid the resource curse to advance SSA countries into developed countries. Only one natural resource-rich country in the region, Botswana, has succeeded in becoming an upper middle-income country using its natural resources, making the possibility of replication of this achievement difficult. The literature aligns in the belief that the economic and political well-being of resource-rich nations depends highly on the actors involved. National and …

Aminoglycoside-Induced Otoneurotoxicity: Analysis Of Inner Hair Cell Synaptic Plasticity Following Drug Exposure, Matthew M. Abernathy

Dissertations

Aminoglycoside antibiotics are powerful drugs for combating bacterial infections, but are limited in use due to their ototoxicity. This class of drug targets the auditory hair cells of the cochlea, causing cell death, which leads to a decline in auditory function. In spite of much research aimed at revealing a mechanism of damage, there are no co-therapies available to diminish the ototoxic liability of aminoglycosides. Existing research does show that there may be a neurodegenerative process that contributes to the observed toxicity. In an effort towards clarifying present understanding of issue, this dissertation project was conducted to characterize the neurodegenerative …

Probing The Unfolding And The Stability Of The Last Four Metal Binding Domains Of Wilson Disease Protein Using Circular Dichroism And Novel Spectroscopic Techniques, Ibtesam Yaseen Alja’Afreh

Dissertations

Wilson disease protein is a copper-transporting P_1B type ATPase. It has large N-terminal copper binding domain which is composed of six homologous sub-domains. Each of these six domains is ~72 residues and connected to one another by linking regions of various lengths. They all possess similar ferrodoxin fold, and metal-binding motif, MXCXXC.

The need of having six metal binding domains and the manner in which they are communicating with each other is not well understood. To better understand how the last four metal binding domains function, I pursued a detailed biophysical characterization of these domains. Using molecular biology I …

Processes, Tools, And Procedures Section 504 Coordinators Use Tocreate And Provide Uniformity Of Section 504 Requirements Across Their Districts, Caroline Breault-Cannon

Dissertations

For public schools to receive federal funds, districts must develop and implement policies that assure a free and appropriate public education to all children including those with disabilities ages three through 21. This can be accomplished through special education or Section 504 policies and services. The purpose of this qualitative study was to describe and interpret the processes, tools, and procedures Section 504 Coordinators use to create and provide uniformity of Section 504 requirements across their districts. Specifically, I examined how coordinators ensured their schools (a) identified and located students, (b) made provisions for providing a free and appropriate public …

Lnference On Differences In K Means For Data With Excess Zeros And Detection Limits, Haolai Jiang

Dissertations

Many data have excess zeros or unobservable values falling below detection limit. For example, data on hospitalization costs incurred by members of a health insurance plan will have zeros for the percentage who did not get sick. Benzene exposure measurements on petroleum re nery workers have some exposures fall below the limit of detection. Traditional methods of inference like one-way ANOVA are not appropriate to analyze such data since the point mass at zero violates typical distribution assumptions.

For testing for equality of means of k distributions, we will propose a likelihood ratio test that accounts for excess zeros or …

The Effects Of Systemic Racism On The Academic Achievement Of African American Male Adolescents, Andre Rubin Fields

Dissertations

In the most recent decade, there has been a spiraling national trend of academic underachievement on the part of African American male adolescents. The empirical purpose of this study was to investigate what role, if any, systemic racism may be playing in the growing epidemic of academic underachievement in African American male adolescents. The results of the analyses utilized in this study found that there were significant correlations between perceptions of racism, coping behavior utilization, and psychological dysfunction. Specifically, canonical correlation analysis found that elevated levels of Cultural Mistrust, Cultural Race-Related Stress, and Individual Race-Related Stress leads to increased use …

The Relationship Between Racial Ambiguity And Self-Concept In Multiracial Lndividuals, James R. Jobe

Dissertations

The present study examined the relationship between racial ambiguity and self-concept in multiracial individuals. Research as to the experiences of multiracial people is limited both in frequency and in scope. As multiracial individuals continue to grow in number, understanding their unique experiences will become more important to social scientists (e.g., psychologists, anthropologists, sociologists) across disciplines. The current study examined two hypotheses and explored a series of additional relationships. The theoretical framework that was utilized for this study was Symbolic Interaction Theory. This theory provided an effective way to understand how people use and make meaning of their surrounding social contexts …

Meeting The Needs Of Students With Traumatic Brain Lnjury, Heather K. Koole

Dissertations

School reintegration following pediatric traumatic brain injury (TBI) presents a number of challenges. This dissertation comprises three studies exploring common themes of best practice, training, and supporting success for students with TBI in school settings.

Study 1 reports the results of a survey of 70 speech-language pathologists (SLPs) who responded to questions about their use of clinical activities that described more or less contextualized services. Current literature supports contextualized service delivery as best practice. Findings indicated that 98% of participants reported using at least one contextualized practice. Higher use of contextualized practices was associated with working in schools (compared to …

Tatweer School Principals' Perceptions Of New Authorities Grantedin The Lnitial Steps Of Decentralization, Salah Salih Meemar

Dissertations

In 2011, the Saudi Ministry of Education (MOE) conferred 21 new authorities in addition to the previous 31 to their school principals. A main goal in conferring these authorities was to facilitate decentralization of Saudi school districts. To further facilitate decentralization, 900 schools were selected as Tatweer schools. Tatweer, also known as the King Abdullah Public Education Development Project, is a pilot program designed to match Saudi standards of education to that of other nations. To date, few studies have explored principals’ perceptions of the new authorities. A review of literature revealed just three studies on the topic (see Allheani, …

Lntegration Of Conventional Lithography And Printing Processes As A Key Enabling Technology For Printed And Flexible Sensing Systems, Binu Baby Narakathu

Dissertations

Sensors, which are used ubiquitously in a wide variety of applications, are revolutionizing the already ever-changing world we live in by providing real-time information about our surroundings. This dissertation focuses on the integration of conventional photolithography and printing processes as a key enabling technology for printed and flexible sensing systems.

Initially, an efficient opto-electrochemical sensing system, for the dual detection of heavy metal compounds was successfully developed. A novel microfluidic flow cell, with a reservoir volume of 25 μl, was designed and fabricated using acrylic. An electrochemical sensor with gold (Au) interdigitated electrodes (IDE) on a glass substrate was photolithographically …

The Neurobehavioral Consequences Of Gestational And Chronic Atrazine Exposure In Male And Female Sprague Dawley Rats, Jennifer L. Walters

Dissertations

The adverse health risks of exposure to the herbicide, atrazine, in humans are not fully understood. Although numerous studies have demonstrated atrazine to be an endocrine disrupter, the neurobehavioral consequences of atrazine exposure have not been thoroughly examined. The aim of this study was to investigate the effects of environmentally-relevant levels

of gestational followed by continued chronic atrazine exposure on motor function, learning and memory, anxiety, and striatal dopamine content in rodents. Pregnant Sprague Dawley rats were treated by gavage with 100 µg/kg atrazine (ATZ low), 10 me/kg atrazine (ATZ high), or vehicle on

gestational day l through postnatal day …

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 …

Evaluating The Impact Of Missouri Senate Bill 291 On Fifth And Ninth Grade State Physical Fitness Standards, Robert Scott Johnston

Dissertations

The current obesity rates of our nation’s youth continue to escalate at an alarming rate due to inactivity, poor nutrition, and lifestyle changes. The purpose of this research study was conducted to determine the effects of Missouri Senate Bill 291 on Missouri physical fitness scores as assessed by the Missouri Physical Fitness Assessment. The state of Missouri adopted new physical activity requirements starting in the 2010-2011 school year. This study evaluated the impact of Missouri Senate Bill 291 on fifth and ninth grade physical fitness assessments. Eleven years of statewide data, were examined to determine the impact of the physical …

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 …

Portraits Of Transformation In Higher Education, Christine P. Braun

Dissertations

No abstract provided.

The Transition Program Experience: How Does It Affect Employment For 18- To 22-Year-Olds With Significant Cognitive Disabilities?, Supattra Wongvisate Andrade

Dissertations

The transition from school to adult life, especially with respect to employment, is a longstanding and critical concern for students with significant cognitive disabilities. Unfortunately, models of services in which schools work with minimal contact with the work community or in which students are trained in isolation (e.g., sheltered workshops) have not proven to be as effective as originally hoped. An emerging model that has promise is one in which the business community has a more direct role in service provision and in which there are partnerships between businesses and service agencies. The purpose of this study was to examine …