Digital Commons Network^™

Driver Behavior Classification And Lateral Control For Automobile Safety Systems, Jing Yang

Dissertations

Advanced driver assistance systems (ADAS) have been developed to help drivers maintain stability, improve road safety, and avoid potential collision. The data acquisition equipment that can be used to measure the state and parameter information of the vehicle may not be available for a standard passenger car due to economical and technical limitations. This work focuses on developing three technologies (longitudinal tire force estimation, driver behavior classification and lateral control) using low-cost sensors that can be utilized in ADAS.

For the longitudinal tire force estimation, a low cost 1Hz positioning global system (GPS) and a steering angle sensor are used …

Advanced Intelligent Control And Optimization For Cardiac Pacemaker Systems, Wei Shi

Dissertations

Since cardiovascular diseases are major causes of morbidity and mortality in the developed countries and the number one cause of death in the United States, their accurate diagnosis and effective treatment via advanced cardiac pacemaker systems have become very important. Intelligent control and optimization of the pacemakers are significant research subjects. Serious but infrequently occurring arrhythmias are difficult to diagnose. The use of electrocardiogram (ECG) waveform only cannot exactly distinguish between deadly abnormalities and temporary arrhythmias. Thus, this work develops a new method based on frequency entrainment to analyze pole-zero characteristics of the phase error between abnormal ECG and entrained …

Dispersibility Of And Adsorption On Functionalized Carbon Nanotubes, Susana Addo Ntim

Dissertations

As the applications of carbon nanotubes (CNTs) proliferate, mass production and widespread use of these nanocarbons will continue to rise. While raw, unrefined, and hydrophobic carbon nanotubes tend to settle out of aqueous media/environments, water dispersible, functionalized CNTs (F-CNTs) will contaminate water resources and will also be highly bioavailable on exposure. Therefore, there is a need to develop an understanding of the fate of F-CNTs in aqueous media.

The colloidal behavior of aqueous dispersions of F-CNTs formed via carboxylation and polymer wrapping with polyvinyl pyrrolidone (PVP) is investigated. The presence of polymer on the nanotube surface provides steric stabilization, and …

Assessing The Impact Participation In Science Journalism Activities Has On Scientific Literacy Among High School Students, Cathy Farrar

Dissertations

As part of the National Science Foundation Science Literacy through Science Journalism (SciJourn) initiative (http://www.scijourn.org; Polman, Saul, Newman, and Farrar, 2008) a quasi-experimental design was used to investigate what impact incorporating science journalism activities had on students’ scientific literacy. Over the course of a school year students participated in a variety of activities culminating in the production of science news articles for Scijourner (http://www.scijourner.org). Participating teachers and SciJourn team members collaboratively developed activities focused on five aspects of scientific literacy: contextualizing information, recognizing relevance, evaluating factual accuracy, use of multiple credible sources and information seeking processes. This study details the …

Host-Parasite Interactions In Galapagos Seabirds, Iris Ilena Levin

Dissertations

Parasites exhibit a wide range of life history strategies that contribute to different dispersal abilities, host specialization, transmission modes, life-cycle complexity and population structure. Understanding dispersal rates in hosts and parasites is instrumental in defining the scale at which coevolution may be occurring. In order to better understand how and when parasites move between different hosts, I studied a seabird – Hippoboscid fly ectoparasite (and vector) – Haemosporidian parasite system in the Galapagos Islands. I began by describing the Haemosporidian parasites of Galapagos seabirds, discovering a Plasmodium species parasite in Galapagos Penguins (Sphensicus mendiculus), and a new clade of Hippoboscid-vectored …

Shopping For Identity: An Economic Explanation For The Post-2003 Violence In Iraq, Alan M. Noory

Dissertations

The American occupation of Iraq revealed intense intra-society violence in Iraq that was not possible to take note of during decades of the state’s systematic practice of violence against society and the organized counter-violence in response to it. The occupation, along with the collapse of a regime without any viable governing alternative, and the historic ethno-sectarian tensions are attractive explanatory factors for the ongoing intra-society violence in Iraq. Yet, they fail to explain another civil war that took place in Iraqi Kurdistan a decade earlier. This forgotten war took place in an almost all Kurd/ all Sunni society, after three …

Planned Parenthood Takes On Live Action: An Analysis Of Media Interplay And Image Restoration Strategies In Strategic Conflict Management, Leslie Lynn Rasmussen

Dissertations

On February 1, 2011 the pro-life organization Live Action released videos that appeared to show Planned Parenthood clinic staff disregarding statutory rape and abortion reporting laws and aiding sex traffickers. The videos posted online quickly garnered over a million views and placed Planned Parenthood at the forefront of national news. The Federal government intervened and threatened to remove funding to the Title X organization. Planned Parenthood launched a campaign to retain funding using social media and controlled online media, and attempted restore its image as a reputable healthcare provider while engaged in conflict with Live Action.

A content analysis was …

Genetic Variation In Potentially Virulent Vibrio Parahaemolyticus From The Northern Gulf Of Mexico, Nicholas Felix Noriea Iii

Dissertations

Vibrio parahaemolyticus (V_p) is a gram-negative bacterium found naturally in marine and estuarine environments. V_p is found in oysters including those which are later consumed by the public. Sub-populations of potentially virulent Vp contain specific virulence factors and are relevant human pathogens capable of causing gastroenteritis, wound infection, and death. The tdh and trh genes, both encoding hemolysins, have been correlated with the majority of clinical V_p isolates but have not been shown to be the definitive virulence factors.

A total of 146 V_p isolates from the northern Gulf of Mexico were collected and probed …

An Examination Of Perceived Stress Levels And Coping Styles Among Rural Law Enforcement Officers, Marcos Luis Misis

Dissertations

Policing is a very stressful job. Despite the extensive body of research on police stress, the majority of studies have focused solely on officers within urban police departments. Research on stress within rural law enforcement departments is virtually non-existent even though the majority of police agencies in America serve towns and areas under 50,000 residents.

This study had four main goals: (1) to examine how work-related stress affects the levels of perceived stress, anxiety, and depression for rural law enforcement officers; (2) to explore the specific stressors affecting rural law enforcement officers; (3) to investigate how rural law enforcement officers …

Identifying Patterns Of Delinquent Trajectories And Testing Stability Of Self-Control Over Time Among South Korean Youth Using Multivariate Latent Growth Curve Modeling, Wanhee Lee

Dissertations

The South Korean yearly national report revealed that since 2006 there has been a steady increase in juvenile crimes (Seoul Police Department, 2009). In addition, the report demonstrated that South Korean juveniles' age of onset in delinquent activity has been continuously decreasing. In South Korea, the age-crime curve sharply peaks at age 16, holds constant until 19, and then begins to decline. Thus, this "peak" within the age-crime curve has been a frequently research topic. This has resulted in some empirical support demonstrating that the age in which criminal involvement peaks is considered the most dynamic period in an individuals' …

An Examination Of Factors Affecting Information Sharing Among Law Enforcement Agencies, Scott Driskill Bransford

Dissertations

The purpose of the present study was to investigate using survey data to find factors or barriers which contributed to local law enforcement participation and support of intelligence information sharing. Following the September 11, 2001, attacks in New York City and Arlington, Virginia, new homeland security initiatives and directives were created from the legislative and executive branches of the federal government. Several new initiatives and directives provided new communication opportunities for partnerships between all levels of law enforcement to combat the future threat of domestic terrorism.

The evaluation literature indicated that a majority of post-9/11, initiatives, including the creation of …

School Reform Initiatives: Their Impact On Teacher Burnout And Perceptions Of Efficacy, W. Wesley Cottongim

Dissertations

This study involving 2,478 teachers from south central Kentucky sought to determine the impact school improvement initiatives have on a teacher. More specifically, it explored how experiencing school improvement initiatives affect the measured levels of burnout and self-efficacy of a teacher.

Participants (n = 2,478) of this study came from school districts within the south central region of Kentucky. The participating districts were selected due to varying sizes of enrollments and the number of employed teachers. Participants were invited to participate in this study via an email invitation. Two previously published instruments were used. Participants were first asked to provide …

Sense Of Community In Graduate Online Education: Contribution Of Interaction, Jo Lita Shackelford

Dissertations

This non-experimental quantitative descriptive study was designed to determine which types of learner-learner and learner-instructor interaction are most predictive of student sense of community in online graduate courses at a regional comprehensive university. Surveys were used to measure sense of community and to collect perceptions of frequency and importance of nine learner-learner interactions and seven learner instructor interactions from participating students (N = 381) within online courses in which they were enrolled. Student demographic information included age, gender, experience with online learning, number of face-to-face class meetings, and employment status.

Results indicated that learner–learner interactions that were most predictive of …

The Relationship Between Teacher Perceptions Of Elementary School Principal Leadership Style And Teacher Job Satisfaction, Joseph Kirk Biggerstaff

Dissertations

The purpose of this study was to examine the relationship between teacher perceptions of elementary school principal leadership style and teacher job satisfaction. The study also investigated differences in teachers’ perceptions of elementary school principal leadership style and teacher job satisfaction based on teachers’ demographics (i.e., age, grade level taught, education level, teaching experience). Additionally, an examination of the significant factors that contribute to teacher job satisfaction as identified by the elementary teachers was explored.

This correlational study with a quantitative, non-experimental design utilized two surveys to measure elementary teacher perceptions of principal leadership style (Multifactor Leadership Questionnaire [MLQ]) and …

Attitudes Of Taiwanese Employees Toward Their Support Co-Workers With Intellectual Disabilities, Tsu-Hsuan Hsu

Dissertations

No abstract provided.

A Comparison Of Institutional Climates In Higher Education In The United States And South Africa, Juanyce Deanna Taylor

Dissertations

Increasing opportunities and access of historically underrepresented populations to higher education in both the United States and South Africa have proved challenging due to institutional climates that are perceived as unwelcoming and unsupportive. The purpose of this study was to investigate factors relating to institutional climates to uncover social constructs that positively and negatively impact the institutional environment. Transformational leadership serves as the theoretical framework for this study.

Data results from institutional climate studies administered higher education institutions in the United States and South Africa were analyzed and compared. Collegiality and collaboration; communication; diversity and equity; governance and strategy; harassment …

The Comparison Of Cross Sectional Area And Parasagittal Dimension Measurements Of The Multifidus Muscles In Collegiate Athletes Identified On The Basis Of Gender, Body Morphology, History Of Back Pain, And Rotational Nature Of Sport, Delaine C. Young

Dissertations

This collaborative study used diagnostic ultrasound to identify the cross sectional area (CSA) and parasagittal dimension (PSD) of the multifidus muscle in helping allied health professionals learn more about the relationship between low back injuries and this muscle’s measurement in collegiate athletes. Bilateral ultrasound measurements (L3-L5) were taken from 91 collegiate athletes who participate in men’s and women’s non-contact sports, volleyball, track/field, swimming, softball/baseball. This exploratory study looked at participant history of low back pain (LBP), gender, height, sport mechanics, and presence of one-sided sports. Researchers used independent t-tests to identify athletes with LBP showed muscular atrophy occurred at L5 …

Giving Students The Reins: Taking Advantage Of Service-Learning's Potential As A Pedagogy For Teaching Writing, Tereza Joy Kramer

Dissertations

Service-learning helps students experience the practical applications of learning to write well; it also offers opportunities for students to develop a sense of civic responsibility. Although service-learning is growing in popularity, this pedagogy is not prevalent in English departments. Additionally, service-learning courses across all disciplines typically do not empower students to make their own project decisions. Given these tendencies, it is useful to consider whether service-learning is an effective pedagogy for writing, whether students should be designing their own projects, and what writing instructors could do to facilitate students' growth as writers while completing projects in the community. This is …

Middle School Students’ Perceptions Of Their Interests In Reading As Defined By Engagement And Social Interaction When Using Sustained Silent Reading, Ssr, And Peer Interests Reading Strategies, Pirs, Regina J. Ware

Dissertations

Alarming statistics report that middle school students are not reading as much as they should be reading. This study is an examination of two interventions that were incorporated into the regular curriculum to determine if these two reading interventions would encourage this researcher’s students to read more. The “Nation’s Report Card” (NAEP, 2010) showed that eighth graders were reading less on the 2009 exam than indicated by the score they received in 2007. This data intensifies the importance of encouraging reading in middle school students. To help the students in Blue Sky Middle School improve their reading habits, this researcher …

Factors Influencing Post-Acute Brain Injury Rehabilitation Treatment Outcome, Nicholas Joseph Cioe

Dissertations

Brain injury has a tremendous effect on the United States. The medical system has a continuum of care available but many of these services are extremely expensive. Despite the effectiveness of residential post-acute brain injury rehabilitation (PABIR) resistance to provide adequate funding remains because of a dearth of randomized controlled trial (RCT) studies demonstrating effectiveness. Some research suggests observational trials are typically more representative of community samples and yield conclusions similar to RCT studies. This study uses a large multi-state naturalistic community-based sample of individuals who received residential PABIR. The purposes of this study were to (1) use logistic regression …

The Military, Economy And The State: A New International System Analysis, Muhammed A. Asadi

Dissertations

In this dissertation, I outline a theoretical justification for a new world systems analysis in order to understand economic development and underdevelopment, and stratification systems that emerge within nation states because of their global social location. I present my detailed case for amending Wallerstein's World-Systems Analysis by empirically incorporating the interplay of the military, economy and state as opposed to his primarily economic division of labor that defines the core, periphery and semi periphery. I do this by uncovering the latent structure of militarization and its articulation within the world system controlling for state strength. I also outline the basic …

Family Attitudes, Beliefs, And Practices Facilitating A Sense Of Purpose In Black American Children And Youth: A Grounded Theory, Mallory Lynn Gary

Dissertations

i ABSTRACT Sense of purpose is strongly associated with positive health behaviors and academic achievement (Turner-Musa & Lipscomb, 2007, Federal Interagency Forum on Child and Family Statistics FIFCFS, 2010). The purpose of this qualitative research study was to develop grounded theory by the exploration of sense of purpose by describing and interpreting attitudes, beliefs, and practices among Black American families participating in an outreach program in Southern, IL. Grounded theory was used to explain the phenomenon of sense of purpose, and the relationship among optimism, faith, hope, spirituality and sense of meaning. A non probability purposive sample was used for …

You Can Breastfeed But . . . : A Rhetorical Analysis Of Images And Commentary On Breastfeeding, Jonna Ziniel

Dissertations

This dissertation is a study of breastfeeding images and the commentary about those images, from a rhetorical perspective. Specifically, I use a feminist lens in order to analyze images of breastfeeding in both magazine and online environments, as well as online commentary about the images. I examine both celebrity and non-celebrity images of breastfeeding from popular pregnancy and parenting magazines, non-traditional parenting magazines, company web sites, and online articles and blog sites. Chapter one presents a statement of purpose, research questions, and an examination of the current literature pertinent to the study including sections on breastfeeding benefits, the sexualized woman's …

Cultural Diversity And The Experiences Of Alaska Native Nursing Students, Margaret Gilmon

Dissertations

No abstract provided.

I Still Have To Overcome Just Being Captured Inside Myself: The Experience And Meaning Of Peritraumatic Tonic Immobility Among Survivors Of Sexual Violence, Sunda Friedman Tebockhorst

Dissertations

While tonic immobility is a phenomenon well known and documented in the animal world, far less is known about its physiologic correlates and manifestation in human beings. This study examines the experience of tonic immobility from the perspective of seven women who have survived a sexual assault accompanied by tonic immobility. It yields a description of the experience of tonic immobility and how it is construed by survivors using phenomenological methodology. Results indicate that themes associated with the experience include a period of initial overwhelming confusion, feelings of terror, a desire to distance oneself from the experience, an intense desire …

An Analysis Of The Success Of A High School Athletic Program On Student Achievement, Peter Randall Giles

Dissertations

The decisions on how to spend money in the public school system will continue to remain throughout the years, but how that money best impacts student achievement should always remain at the forefront of every decision. Often in today’s tough economic times school systems will cut expenditures in athletics without the full knowledge of how a high school athletic program impacts student achievement and the climate and culture within the school. The researcher investigated the success of an overall high school athletic program and the correlation with standardized test scores in English and math. Additionally, the success of a high …

Do At-Risk Students Benefit When Novanet Is Used For Credit Recovery?, Rebecca Lynn Volkerding

Dissertations

The purpose of this study was to determine if it is effective and appropriate to place all students needing credit recovery in computer-based classes regardless of age, risk ratio, and their previous failing grade. Driven by the NCLB mandate for schools to produce greater gains and graduate all students in 4.5 years, districts are now using online credit recovery programs to help at-risk students gain promotion and put students back on-track for graduation without placing these students back in the traditional classroom setting where they failed the class the first time. Although there is an adequate knowledge base about the …

Supervision In Applied Counseling Settings: A Socially Constructed Grounded Theory, Thomas D. Lonneman Doroff

Dissertations

No abstract provided.

The Effectiveness Of The Yea Tobacco Prevention Program With A Media Literacy Component For Middle School Age Students In Regards To Tobacco Use, Unsun Grace Lee

Dissertations

This is a study focusing on a tobacco prevention program with a media literacy component that was administered in middle schools across the state of Missouri. In this study, the effectiveness of the Youth Empowerment in Action – Tobacco Education Advocacy and Media Program (YEA! TEAM) was investigated to determine if the inclusion of a media literacy component in an anti-tobacco prevention program made an impact on youth and their overall attitudes towards smoking. In this program, youth were taught how to dissect persuasive media techniques to make informed decisions. The research question for this study was, Can the media …

A Qualitative Descriptive Study Of The Work Of Nurses In Interventional Radiology, Brenda Naef Boone Phd

Dissertations

This dissertation study explored the work of nurses in interventional radiology. Interventional radiology (IR) is an emerging field of practice in health care. More and more procedures that were historically done in the operating room are being performed in IR. This has led to higher acuity patients and an increased need for specialized nursing care. The work of nurses in this area of practice is not well described and as such can lead to a lack of understanding of nursing involved in high tech low touch areas. This qualitative descriptive research study was conducted to shed light on this under …