Digital Commons Network^™

Cellulose-Derived Glycosaminoglycan Mimetic For Use In Cartilage Tissue Engineering Strategies, Roseline Dominic Menezes

Dissertations

Articular cartilage has limited healing and self-repair capability due to the absence of vasculature, lymphatic vessels, and nerves. Damage to articular cartilage becomes irreversible leading to formation of osteoarthritis that could severely degrade a person's quality of life. Approximately, 5-10% of cartilage tissue is made up of glycosaminoglycans (GAG), which sequester growth factors as well as provide structural integrity to the native cartilage tissue. Transforming growth factor-beta3 (TGF-β3) is an important growth factor for inducing chondrogenesis in mesenchymal stem cells (MSCs). Bioavailability of TGF-β3 plays a critical role in cartilage repair both in vitro and in vivo. This study evaluates …

Command Climate And Ethical Behavior: Perspectives From The Commandant's Of The Marine Corps, Brian Kerl

Dissertations

Marine Corps commanding officers today face challenges aggravated by the wars in Iraq and Afghanistan, strategic uncertainty, and societal changes that carry over to the military such as women serving in infantry roles and the use of social media. These challenges are exacerbated by the stressors unique to the military such as lengthy separations from loved ones and multiple relocation moves, which underscore the significance of command climate and its influence on ethical behavior. Importantly, the consequences of a command climate not focused on ethics may negatively affect combat readiness and warfighting effectiveness. To date, however, little scholarly work, if …

Technology Integration: A Mixed Methods Study Of Best Practices Of Technology Integration As Perceived By Expert Middle School Teachers, Carliza Bataller

Dissertations

Purpose: The purpose of this mixed methods sequential explanatory study was to identify and describe best practices in technology integration in middle school classrooms as perceived by expert middle school teachers. Additionally, it was the purpose of the study to determine the most important best practices and perceived barriers to successful technology integration as perceived by expert middle school teachers.

Methodology: This study included a survey sent to 34 middle school teachers from five counties in northern California who were considered experts in technology integration. Data were gathered from the initial survey instrument and followed up by interviews with participant …

Self-Efficacy Of Early Childhood Teachers In Science, Technology, Engineering, And Mathematics, Ariella Rachel Donnelley Smith

Dissertations

Purpose. The purpose of this study was to identify the self-efficacy of early childhood teachers toward STEM subjects as measured on the Teacher Efficacy and Attitudes toward STEM Survey (T-STEM) and to explore factors that influence this confidence.

Methodology. A quantitative approach with two open-ended items was selected for this study, seeking to elicit both quantitative and qualitative data from participants. This approach allowed for multiple viewpoints to be expressed, with the qualitative data collected simultaneously with the quantitative data, and the former designed to illuminate reasons influencing the latter in a complimentary approach. The population for the study included …

Career Coaching: A Study Of Veterans Health Administration (Vha) Leaders', Jerelyn Dugas

Dissertations

Purpose: The purpose of this qualitative multiple case study was to explore and describe the impact of career coaching on the career performance growth and retention as perceived by healthcare’s emerging leaders who participated in selected coaching program institutes for a minimum of 1 year at VHA hospitals in Southern California.

Methodology: The researcher selected a qualitative multiple case study to explore and describe VHA leaders’ perceived impact of coaching on their career performance growth and retention. Further, the researcher conducted semi-structured, interviews with 15 participants to gain a better understanding of the lived experiences of the participants at the …

Consuming Victory: American Women And The Politics Of Food Rationing During World War Ii, Kelly Cantrell

Dissertations

Life on the home front formed the most ubiquitous American experience during World War II. Americans in the early 1940s found themselves caught in a rapidly evolving world, which wrought changes both great and small on their daily lives. This project explores women’s responses to some of that change. The federal government created wartime agencies to control and direct most elements of daily life from public opinion, to factory production, to employment practices, to family food procurement. The Office of Price Administration was charged with creating a food rationing program to insure steady availability of foodstuffs at home while suppling …

Mitigating Risk: A Delphi Study Identifying Competencies In Sport And Event Security Management, Elizabeth Voorhees

Dissertations

The purpose of this study was to identify core competencies for supervisory-level security management professionals working in the sports and entertainment industry. Qualified and trained sport and event security-management professionals are essential to support the U.S. homeland security objectives outlined in Presidential Policy Directive-21. Providing effective safety and security for sports and entertainment events requires specialized knowledge and skill on the behalf of security-management practitioners who detect, deter, prevent, and respond to potential risks and threats. This qualitative research study employed a Delphi research design to elicit expertise from a purposefully selected panel of experts (N = 36). The …

Exploring The Moderating Effects Of Family Functioning And Child Grit On The Relation Between Adhd Endophenotypes And Adhd Symptoms, Karin Fisher

Dissertations

ADHD is a heritable condition, with unknown etiologies and different phenotypic expressions in affected individuals. Its genetic vulnerability may be expressed only when specific environmental conditions are present. Endophenotypes stand in the causal path between genes and disease and are found in children diagnosed with ADHD as well as unaffected relatives. This study investigated the link between ADHD endophenotypes and the heterogeneous expression of ADHD symptoms in 84 children aged 11 to 17 years and explored whether this relation depends on family functioning and resilience of the child (i.e., grit). It was hypothesized that (1) ADHD endophenotypes would be moderately …

Body Image And Participant Characteristics In Emerging Adults, Amber Green

Dissertations

Positive evaluations of one’s body, or positive body image, is associated with healthy outcomes. Conversely, negative evaluations of one’s body, or negative body image, is a significant risk factor for unhealthy outcomes including eating disorders. Yet, these constructs have not been explored conjointly or in individuals with self-reported levels of positive and negative body image. The goal of the current study was to examine associations among positive, negative, and average levels of body image and a set of participant characteristics including body mass index (BMI), fitness levels, psychological well-being, and attitudes/behaviors toward social media in emerging adults (N = 439). …

Black Graduate Students’ Experiences Of Stress And Coping, Shealyn J. Blanchard

Dissertations

The purpose of this study is to examine the experiences of Black graduate students related to stress and coping. Specifically, this study seeks to further examine the concept of cognitive appraisal and help-seeking intentions among Black graduate students. Research has indicated that Black graduate students face unique stressors related to race, in addition to general stress demands that can be experienced in graduate education programs. Regarding help-seeking, the literature has tended to focus on psychological help-seeking attitudes with African American populations and undergraduate students. This present study utilizes theories from stress and coping, as well as help-seeking and planned behavior, …

Training Pediatric Primary Care Providers In Behavior Management Strategies, Kate Burger

Dissertations

Childhood mental health disorders are a significant public health concern in the United States. It is estimated that every year 13 to 20% of children living in the United States experience a mental health disorder (National Research Council and Institute of Medicine, 2009). Despite the clear need for mental health care, less than half (45.6%) of children with one or more emotional, behavioral, or developmental conditions receive treatment from a mental health professional (The National Survey of Children's Health, 2007). There is growing evidence that integrating mental health services into pediatric primary care can result in increased treatment access as …

Treatment Preference, Changes In Preference, And Quality Of Life, Chelsea Sage-Germain

Dissertations

The current study investigates whether treatment preferences prior to beginning treatment are different from treatment preferences at later points in treatment, and whether preferences are related to treatment outcome. While research to date supports the notion that matching clients to treatment in line with their preferences can improve retention and outcomes, results have been equivocal. Further, this research is typically conducted by measuring preferences just one time, prior to starting treatment. It is conceivable that preferences for treatment change over time as patients become more knowledgeable about their presenting problems and about the therapy process. A total of 969 participants …

Perceptions Of Missouri School Superintendents And School Resource Officers Regarding Preparedness For Multi-Hazard Events, Jennifer Renae Wheeler Lofton

Dissertations

The purpose of this study was to garner the perceptions of superintendents and school resource officers in regard to district preparedness for multi-hazard events. Nationwide, schools are facing dramatic changes in the area of safety and security due to natural disasters, and more commonly, manmade hazards (Schaffhauser, 2013). Routinely, school personnel do not have the mindset, nor are they equipped, to respond to a major crisis (Trump, 2012). Recent mass murders and natural disasters in the United States have prompted districts to reach beyond the walls of their schools and into local communities for support (Gereluk, Donlevy, & Thompson, 2015). …

Evaluating Educators’ Competency In The Use Of Computer Technology Toward Integrating Technology Into Libyan Higher Education, Ilham A. Hbaci

Dissertations

The primary purpose of this quantitative survey research with supplemental qualitative data was to evaluate issues related to the integration of technology into Libyan higher education from Libyan educators’ perspectives. All participants were Libyan educators who worked at the main universities in Eastern Libya (Benghazi and Omer Al-Moktar). The study focused on four critical computer technology skill areas: basic computer operation, use of application software, use of the Internet, and use of peripheral technologies (equipment that could be connected to computers such as printers and cameras). A total of 161 Libyan educators participated in this study by completing an Arabic …

Synthetic And Theoretical Studies For Cyclization Reactions To Form C-C And C-N Bonds, Nicholas Jentsch

Dissertations

Natural product total synthesis provides an alternative method for obtaining medicinally relevant compounds in a more efficient process with higher yields than what nature can provide. Natural products pose significant synthetic challenges due to the unique heterocyclic skeletons with fused and spirocyclic ring systems. Therefore, it is paramount to develop efficient reaction methodologies targeting substructures such as cyclic ureas and spiro[4.5]decanes which are prominent among marine natural products and Lycopodium alkaloids, respectively. Presented here is a compilation of research seeking to develop synthetic methods for the construction of cyclic moieties such as those previously mentioned. The objectives that are addressed …

Beta-Testing Of An Interactive Multimedia Computer Program Of Exposure Therapy For Ptsd, Marie C. Barrett

Dissertations

Posttraumatic Stress Disorder (PTSD) results in significant impairment for the individual and substantial costs to society. Research indicates that cognitive behavioral psychotherapy (CBT) is the most effective treatment for PTSD and that among CBT treatments, exposure therapy is the treatment technique with the strongest evidence to recommend it for PTSD treatment. Computerized programs that deliver evidenced-based treatments offer a potential solution to barriers that prevent individuals from accessing and completing treatment. The present study evaluates the clinical and practical functionality of a computer-based program designed for the treatment of PTSD. Results indicate that completion of the program is associated with …

Asd Program Development In Special Education Teacher Preparation: An Exploratory Study, Christine Dewildt

Dissertations

The process of developing a program for an endorsement in a teacher preparation program is complex, with various influences and requirements involved. Regulatory compliance, standards for practice, and university influences are key considerations within program development. Curricular factors and content delivery must also be considered. This study explored the process of program development leading to an endorsement in autism spectrum disorder (ASD) at a university, shedding light on what some of the key aspects to program develop entail.

This study explored the complex process of teacher preparation program development in ASD through inquiry rooted in a qualitative approach. At the …

The Ethnic Identity Journey Of 1.5 Generation Asian American College Students, Nadia Anisa Benyamin

Dissertations

The purpose of this qualitative phenomenological research study is to explore the ethnic identity journey of 1.5 generation Asian American college students. The study seeks to answer how the ethnic identity perception of the 1.5 generation Asian American college students has transformed from arrival in the United States to present and how native and English language engagement as well as acculturation experiences have impacted the 1.5 generation Asian American college students’ perceptions of ethnic identity. The data for this study were collected via in-depth semi-structured interviews with five Asian American college students who self-identify as 1.5 generation individuals or having …

Examining Relationships Of Social Media To Customer Equity Of The National Basketball Association, Jiyoung Park

Dissertations

The purpose of this study was to investigate the role Facebook plays in the sport management context, and to understand the relationship that exists between customer equity and social media, in a professional sport league in the U.S. While it is only one of many social media platforms, Facebook has over one billion users (Facebook, 2018) and it connects people with communities and similar interest groups such that it can enhance social relationships. Sport organizations should understand how social media can influence sport fans, and this can be examined by looking at the Facebook page of the National Basketball Association …

Disability-Related Factors And Perceived Stigma: A Closer Examination Of Suicidality In Individuals With Physical Disabilities, Lauren Khazem

Dissertations

Previous research has indicated an association between physical disability and suicidal ideation. However, the mechanisms contributing to the development of suicidal ideation in this population have remained largely unstudied within an empirically supported theoretical framework. The current study expands upon previous research by examining the relationship between different facets of physical disability and suicidal ideation intensity through the indirect effect of perceived stigmatization and interactions with mental states described within the Interpersonal Theory of Suicide, namely perceived burdensomeness and thwarted belongingness. Furthermore, this research aims to examine these potential relationships in a nonclinical sample of adults with physical disabilities ranging …

Bariatric Surgery Regain And Long-Term Weight Loss Among Women: Self-Efficacy, Social Support And Health Promotion Lifestyle Behaviors, Raelene Z. Brooks

Dissertations

Although bariatric surgery appears to produce success in a short period of time immediately after surgery, weight regain over time in this population cannot be ignored. Understanding the relationship between potential psychosocial predicting post-surgical variables influencing bariatric surgery may prevent long-term weight regain. The purpose of this research is to examine self-efficacy, social support, and lifestyle habits and their relationship to long term weight loss and regain in women post bariatric surgery. Weight regain is observed as early as 18 months to 2 years after bariatric surgery. Patients face challenges sustaining the dramatic lifestyle changes required to ensure positive long-term …

Assessment Of Nursing Knowledge Before And After Implementation Of Educational Intervention On Heart Failure, Sarah Scott

Dissertations

Purpose: The purpose of this study was to assess the knowledge of nursing staff on a cardiology unit before and after the implementation of heart failure specific education. Methods: Forty staff nurses on a cardiology unit at a single institution were given The Nurses Knowledge of Heart Failure Education Principles Survey (NKHFEP), a validated tool to assess nursing knowledge of heart failure. A series of four educational sessions were given to the same forty nurses. They were then given the NKHFEP survey a second time to assess change in knowledge post educational intervention. Results: The mean of Pre-education (M = …

Implementing The Cdcs Core Elements Of Outpatient Antibiotic Stewardship Program Into The Urgent Care, Deanna Powelson

Dissertations

Purpose: The inappropriate use of antibiotics has led to the development of antimicrobial

resistance which is a severe threat to the public and an increasing global problem. The

Centers for Disease Control and Prevention (CDC) estimates at least two million illnesses

and 23,000 deaths are caused by antibiotic-resistant bacteria in the United States (CDC,

2014). The purpose of this quality improvement (QI) project was to evaluate the

effectiveness of an antibiotic stewardship program (ASP) on urgent care providers'

prescribing on viral respiratory tract infections (RTIs) including the common cold,

pharyngitis, and bronchitis.

Methods: This QI project implemented the CDCs Core …

Evaluation Of A Youth Emergency Room Enhancement Program For Behavioral Health, Anne Thatcher

Dissertations

Problem. Pediatric mental health complaints and subsequent hospitalizations have been steadily increasing. The Behavioral Health Network (BHN) developed an intensive outreach case management program aimed at reducing youth mental health emergency department (ED) visits and inpatient psychiatric admissions. The Youth Emergency Room Enhancement (YERE) program was a process improvement initiative to provide immediate case management to youth and caregivers for mental health care.

Methods. A Plan-Do-Study-Act (PDSA) method utilizing a retrospective case record review occurred over a six-month period. A convenience sample of youth aged 6-20 years presenting to one of eight healthcare facilities for either ED or inpatient hospitalization …

Assessing The Impact Of Practice Transition On Advance Practice Registered Nurse’S Job Stress And Job Satisfaction, Patricia E. Hendrickson

Dissertations

Problem

The impact of the transition to full practice authority (FPA) on job satisfaction and job stress has not been previously described in the literature.

Method

Job satisfaction, job stress, and practice transition stress data was collected from a sample of 33 Advance Practice Registered Nurses (APRN) working at the VA St Louis Health Care System using Misener Nurse Practitioner Job Satisfaction Survey (MNPJSS), National Institute of Occupational Safety and Health Generic Job Stress Questionnaire (NIOSH-GJSQ), and student-developed practice transition stress questionnaire during the initial phase of FPA transition.

Results

APRNs were minimally satisfied to satisfied. Job stress from work …

Aligning With Patient-Centered Medical Home Standards: Depression Screening In Women's Health, Charity Galgani

Dissertations

Problem: The Patient Centered Medical Home (PCMH) model of care improves health care quality and patient experience of care, and decreases costs. Depression screening is a requirement for becoming a PCMH. The purpose of this quality initiative was to obtain baseline data to describe depression screening rates among female adult patients receiving women’s health care within a Midwestern public health department seeking PCMH recognition.

Methods: The study utilized a descriptive, observational design and was guided by the Plan-Do-Study-Act framework. A retrospective medical record review was used to assess the rate of depression screening utilizing the PHQ-2 and PHQ-9 tools, and …

The Role Of Popular Culture In Preschool Children’S Emergent Writing/Composing: An Exploration Of The Writing Process And Tensions Surrounding One Preschool Writing Center, Stephanie Winters

Dissertations

Over the last several decades research has been conducted surrounding popular culture and children’s writing/composing. Much of this research focused on children in early elementary school classrooms. I discovered, when preparing for this project, that there was very little published research (written in English) surrounding preschool-aged children’s compositions (with or without the emphasis on popular culture), and what happens in the writing center. This study helps fill the gap in the research by documenting how preschool children in a mixed-age (ages three to five years) classroom, who attend a public school in an urban, Midwestern area, write/compose when given the …

Alternatives In Magnesium Sulfate Treatment Courses: An Investigation Of Physician Prescribing Behaviors, Erin Williams

Dissertations

Problem: The gold standard for managing preeclampsia in the postpartum patient is 24- hours of magnesium sulfate as this is the time the patient is most susceptible to experiencing a seizure (American College of Obstetricians & Gynecologists, 2013). However, these patients are at an increased risk for experiencing adverse health outcomes, as well as interruptions in maternal-infant bonding due to the mother requiring a higher level of care. Methods: A one group pretest-posttest design was conducted to gain a better understanding of the current practice while also assessing the willingness of physicians to change prescribing behavior after receiving the research-based …

The Political Nature Of Defense Policy In Congress, Timothy Welter

Dissertations

Is defense policy more collegial than other policy issues addressed by Congress? More specifically, what are the institutional and political motives which drive a majority of the members of Congress to consistently transcend partisanship in order to pass defense focused legislation into law?

The purpose of this study was to test whether or not the consideration of defense policy in the House of Representatives is unique in its ability to transcend partisanship. And if so, why?

Hypothesis: The formulation of defense policy in the U.S. House of Representatives is approached with more collegiality than other policy issue areas, mainly due …

Practical Vortex Beam Generation, Nedime Pelin Mohamed Hassan Salem

Dissertations

Vector vortex beams are monochromatic electromagnetic wave fields carrying spin angular momentum (SAM) and orbital angular momentum (OAM). Spin angular momentum is associated with the polarization of the field, whereas OAM yields an azimuthal field dependence of the form exp( jqφ), where φ is the azimuthal angle, and q is an integer designating the helicity order, which is also known as the topological charge of the vortex beam. Vortex beams owe their names to the characteristic on-axis phase singularity and amplitude null.

In this study, a new method to generate vector vortex beams in the microwave regime is devised …