Digital Commons Network^™

The Effects Of Participative Leadership Practices On Job Satisfaction For Highly Skilled Virtual Teams, Funda Sinani

Walden Dissertations and Doctoral Studies

Virtual-team professionals have reported experiencing low job satisfaction due to lack of face-to-face interaction leading to stress, miscommunication, and role-confusion. Dissatisfaction among virtual teams has increased turnover and management costs for organizations. Despite these known associations, there was a gap in the literature investigating efficient leadership practices to improve job satisfaction for highly skilled virtual teams. Participative leadership offers an effective approach to increase job satisfaction among face-to-face teams and innovative teams. This study explored the relationship between participative leadership and job satisfaction among highly skilled virtual teams within the global software industry. A quantitative study with a correlational design …

An Exploration Of Exposure To Music In High School Males In Appalachian Ohio, Cassandra Mcdonald

Walden Dissertations and Doctoral Studies

Even with increasing availability of alternative educational systems, individual learning plans, and vocational schools, the high school dropout rate among males is still rising. High school dropouts have a negative effect on a community because their chances of being employed and contributing to the community are reduced. The theoretical frameworks of multiple intelligences, self-efficacy, and developmental constructivism were used to conduct a hermeneutical phenomenological study of the lived experiences of a specific population of male youth in rural Ohio who decided to return to school and complete the requirements for a high school diploma or GED after being exposed to …

Strategies For Managing A Multigenerational Workforce, Ronald Lee Iden

Walden Dissertations and Doctoral Studies

The multigenerational workforce presents a critical challenge for business managers, and each generation has different expectations. A human resource management study of organizations with more than 500 employees reported 58% of the managers experiencing conflict between younger and older workers. The purpose of this single case study was to explore the multigenerational strategies used by 3 managers from a Franklin County, Ohio manufacturing facility with a population size of 6 participants. The conceptual framework for this study was built upon generational theory and cohort group theory. The data were collected through face-to-face semistructured interviews, company documents, and a reflexive journal. …

Impact Of Pneumococcal Conjugate Vaccine Thirteen Valent On The Reduction Of Invasive Pneumococcal Disease, Aissata Coulibaly

Walden Dissertations and Doctoral Studies

Many children under the age of 5 die each year of invasive pneumococcal disease. Childhood vaccination against this disease reduces morbidity and mortality. Despite the introduction of a pneumococcal conjugate vaccine (PCV13) in a central African country in 2011, all provinces have not yet been vaccinated. The purpose of this quantitative quasi-experimental study was to determine whether there was an association between the introduction of PCV13 and new cases of pneumococcal disease in 2 provinces in central Africa. The sample size for the study was 380. The theoretical framework for this study was the epidemic model supported by the concept …

Educator Perceptions Of Visual Support Systems And Social Skills For Young Adults With Autism Spectrum Disorders, David James Miller

Walden Dissertations and Doctoral Studies

Young adults with Autism Spectrum Disorder (ASD) face unique social skills challenges as they transition into independent living environments and seek fulfilling relationships within their communities. Research has focused on social education and interventions for children with autism, while transitioning young adults with ASD have received insufficient attention. The purpose of this multisite case study was to explore perceptions of school personnel related to the use of visual support system (VSS) technology and enhancement of social skillsets for young adults with ASD. Information processing theory and social learning theory provided the research framework. Research questions addressed perceptions related to the …

Equine Assisted Activities And Therapies: The Measuring Of Equine Temperament, Thecla M. Helmbrecht Howard

Walden Dissertations and Doctoral Studies

The field of equine assisted activities and therapies (EAAT) is growing in popularity as an alternative healing approach. However, there is a paucity of peer-reviewed research on the horses who serve as equal partners in EAAT. The purpose of this quantitative study was to discover the impact of equine-facilitated therapeutic activities on the temperament of horses, and to determine how to select a better human-to-horse therapeutic match when providing EAAT services. The theoretical framework for this research drew from Romanes' theory of animal intelligence, which predicts that temperament would change as a result of prolonged participation in specific work (EAAT …

Comparing African- And U.S.-Born Blacks At Stage Of Diagnosis And Treatment For Nonsmall Cell Lung Cancer, Relindis K. Fofung

Walden Dissertations and Doctoral Studies

Lung cancer is a disease with a high mortality rate for the U.S. Black population. There had been considerable research done on different population demographics, necessary to achieve the Healthy People 2020 overarching goals to eliminate health disparities, gain health equity and maintain quality health. Yet, the African-born Black (AFBB) population has been understudied for nonsmall cell lung cancer (NSCLC). This study sought to determine whether within race differences in stage at diagnosis and treatment of NSCLC exists between AFBB and American-born Blacks (AMBB) populations in the United States. The study data is secondary data collected as part of the …

Examining U.S. Middle School Students' Achievement In A Blended Learning Environment, Bernadette Ortiz-Brewster

Walden Dissertations and Doctoral Studies

Abstract

U.S. middle schools are increasing offering blended learning curricula that integrates virtual and face-to-face instruction, but the effectiveness of this mode of instruction at the middle school level has not been adequately explored. This investigation provides additional data to the current body of knowledge related to blended learning as a viable option for middle school students. The theoretical framework for this investigation derives from Lev Vygotsky's social development theory and Jean Piaget's constructivist theory of knowledge. The central research question focused on the difference in achievement scores between 6th grade students participating in a virtual course as compared to …

Predictors Of Treatment Outcomes Of Elderly Substance Abusers In Treatment Facilites, Renata Raye Bosek

Walden Dissertations and Doctoral Studies

Research in the late 1990s and early 2000s projected that the number of people aged 50 and older who needed treatment for illicit drug use and abuse of prescribed medications to increase from approximately 1.7 million in 2001 to approximately 4.4 million in 2020. The purpose of this study was to examine how gender, marital status, employment status, and primary referral source predicted treatment outcomes with this older population. Of interest was how these predictions could better prepare treatment providers to treat individuals born between 1946 and 1964 who are addicted to substances. This quantitative study used an archival database, …

Direct-To-Consumer Advertisements And Medical Services Utilization Among Adult Dermatology Patients In The United States, Heribert Zouetchou

Walden Dissertations and Doctoral Studies

Pharmaceutical product claim and help-seeking advertisements have prompted the types and purposes of medical dermatology service(s) that patients have used in the United States. Indeed, researchers have demonstrated that 94% of working nurse practitioners affirmed receiving from their patients a request for a cancer drug advertised. However, adult dermatology patients members of Saint Nicholas Catholic Church or/and patients at MedStar Clinic in Houston, Texas, have not been of interest for any study so far. The purpose of this quantitative study was to assess the relationship between product claim, help-seeking, types, and purposes of medical dermatology services used amongst males and …

The Impact Of Social Determinants On Tuberculosis Incidence Trends In New Jersey, Thomas Larry Brown

Walden Dissertations and Doctoral Studies

Social determinants have impacted disease states. The purpose of this study was to determine the influence of social determinants on the incidence of tuberculosis over a 20-year period for the state of New Jersey to determine interventions that can be developed for the state. The epidemiological triad (host-agent-environment) served as the theoretical foundation for this study. A quantitative series of cross sectional analyses were performed using secondary data from a New Jersey Department of Health database on population tuberculosis incidence for the state. Categorical data analyses were used to describe the data. According to study results, certain social determinants; such …

Healthy Weight Maintenance: Narrative Analysis Of Weight Cycling In The Formerly Obese, Cheri Renee Lewis

Walden Dissertations and Doctoral Studies

Medical and economic costs for obesity are estimated at $147 billion per year, yet less than 1/3 of overweight individuals successfully maintain weight loss. The literature is replete with descriptions of the problem and research on treatments, yet demonstrations of effective loss and maintenance are lacking. Missing is an understanding of the experiences of individuals who successfully maintained healthy weight loss, which could provide insights regarding effective psycho-social interventions. The purpose of this qualitative narrative study was to explore key events and experiences in the lives of former weight cyclers. The primary phenomena of interest included weight cycling and sustained …

Barriers To Breast Cancer Prevention And Screening Among African American Women, Abosede Francisca Obikunle

Walden Dissertations and Doctoral Studies

Breast cancer is a serious illness that often has fatal consequences. Adherence to the recommendations for breast cancer surveillance is poorly practiced among African American women. The purpose of this phenomenological study was to seek individual professed barriers to breast cancer screening among African American women to better understand why breast cancer continues to be one of the principal basis of mortality among African American women. The theoretical framework for this study was the behavioral model of health services use. Purposeful selection was used to invite 14 African American women to participate in the in-depth interview process. Interview data were …

Addressing Internalizing Problems In Middle School Youth With Check In/Check Out, Malgorzata Borawska-Popielarz

Walden Dissertations and Doctoral Studies

More than 20,000 primary- and secondary-level schools, which represent 20% of all schools in the United States, are implementing school-wide positive behavior supports (SWPBS) to enhance socially desirable behavior and promote a decline of problematic behavior among students. The overall efficacy of the 3-tier SWPBS framework is well documented. However, a paucity of empirical research addresses the use of check in/check out (CICO), a Tier 2 intervention, for youth who present as quiet and withdrawn, and who are at risk of academic and social disengagement. Accordingly, this quasi-experimental, nonequivalent groups study assessed the overall effectiveness of CICO and considered the …

Life Events, Initial Sexual Behaviors, And Teenage Pregnancy Among African American Females, Yonzetta Brook Tillman

Walden Dissertations and Doctoral Studies

Teenage pregnancy is disproportionate between African American and Caucasian females. This disproportion is notable because African American teenagers are 3 times more likely to become pregnant than their Caucasian counterparts are. The purpose of this study was to determine whether a relationship exists among major life events, sexual behaviors, and resultant teenage pregnancy among African American females in the United States. The theoretical framework for this study was social learning theory. Three key research questions focused on relationships among (a) major life events and initial sexual behavior, (b) ethnicity, and (c) teenage pregnancy. Independent variables were life event and ethnicity, …

Factors Associated With Late Stage Diagnosis Of Cervical Cancer In The United States, Marianne S. Pelletier

Walden Dissertations and Doctoral Studies

Cervical cancer represents a significant public health problem in the United States. According to the Centers for Disease Control and Prevention, the prognosis is related to stage at diagnosis, with the 5-year survival rate being 91.2% for early stage disease and only 17.0% for those with late stage disease. There is a gap in the literature examining the association of insurance status with late stage cervical cancer diagnosis across a large segment of the United States population. There is also a gap in the literature examining women residing in the United States with late stage cervical cancer diagnosis and identifying …

Referral And Treatment Settings For Pregnant Women, Linda D. O'Daniel

Walden Dissertations and Doctoral Studies

Drug and alcohol addiction in pregnant women is a significant public health issue. The purpose of this study was to assess drug and alcohol addiction in pregnant women and the setting in which they sought service or treatment to determine whether U.S. census regions and race data could predict the type of addiction service or treatment that pregnant addicts chose. The theories of self-efficacy, cognitive behavioral therapy, and rational emotive behavioral therapy were used as the theoretical framework for this study. The research questions were used to examine whether there was a relationship between the source of addiction treatment referral …

Unearthing The Process Roots Of Environment Ethics: Whitehead, Leopold, And The Land Ethic, Brian G. Henning

Philosophy Faculty Scholarship

The aim of this essay is twofold. First, I examine the role of Alfred North Whitehead and process thinkers in bringing about and shaping the field of environmental ethics. As we will see, our job is not so much to develop the connections between Whitehead and environmental thought as to recover them. Second, given this genealogical work, I invite process scholars to reconsider their generally hostile reception of Aldo Leopold and his land ethic. I suggest that a version of the land ethic grounded in a process axiology could make a significant contribution to contemporary environmental thought.

From The Anthropocene To The Ecozoic: Philosophy And Global Climate Change, Brian G. Henning

Philosophy Faculty Scholarship

No abstract provided.

Weighing The Relative Potential Impacts Of Climate Change And Land-Use Change On An Endangered Bird, Betsy A. Bancroft, Joshua J. Lawler, Nathan H. Schumaker

Biology Faculty Scholarship

Climate change and land-use change are projected to be the two greatest drivers of biodiversity loss over the coming century. Land-use change has resulted in extensive habitat loss for many species. Likewise, climate change has affected many species resulting in range shifts, changes in phenology, and altered interactions. We used a spatially explicit, individual-based model to explore the effects of land-use change and climate change on a population of the endangered Red-cockaded Woodpecker (RCW; Picoides borealis). We modeled the effects of land-use change using multiple scenarios representing different spatial arrangements of new training areas for troops across Fort Benning. …

Outcomes Experienced By Patients Presenting With Ventral Hernias And Morbid Obesity In A Surgical Clinic, Margaret A. Plymale

DNP Projects

Surgeons generally agree that morbid obesity is a contraindication to ventral hernia repair surgery due to risk of adverse outcomes. The purpose of this study was to describe the experience of patients with ventral hernia complicated by morbid obesity by reviewing a population of patients that were seen by a surgical service to determine the characteristics of those patients that had favorable and unfavorable outcomes. A retrospective medical record review was conducted of new patients with ventral hernias and morbid obesity (body mass index (BMI ) ≥ 40 kg/m²) seen by one surgical service over a two and …

Post Foley Removal Guideline Process And Outcome Evaluation, Sarah E. Gabbard

DNP Projects

When patients are admitted to a hospital patient safety should be a priority in all aspects of the care they receive. Preventing patients from acquiring hospital infections (HAIs) is one example of patient safety. All hospital employees have the responsibility to ensure that standard workflow and processes are in place to ensure this safety. The purposes of this Practice Inquiry Project (PIP) were to examine and develop interventions to decrease the risk of catheter associated urinary tract infections (CAUTIs), incorporate an effective process and standard workflow to implement evidence practice practices (EBP), and to evaluate the effectiveness of implementing the …

Assessment Of Depression Screening In Women’S Primary Care Clinic, Susanna Gorton

DNP Projects

Purpose: The purpose of this practice inquiry project was to evaluate provider adherence to depression screening documentation in the ambulatory electronic health record (AEHR) before and after changing locations of the depression screening questions within the AEHR. Provider knowledge about depression screening and barriers related to depression screening were also examined.

Methods: A retrospective chart review was completed for patients seen for an annual exam by a physician provider in a women’s primary care clinic. Data collected included demographic data, co-morbid conditions, depression screen documentation (PHQ-2 & PHQ-9), and interventions documented. A questionnaire was sent to providers in the primary …

The Smart Heart Self-Care First Pilot Program, Samantha Mancuso

DNP Projects

Purpose: The Smart Heart Self-Care First Pilot Program (SHSCF) offers a transitional care intervention focusing on the self-care of hospitalized heart failure patients who are discharged home. It utilizes assessment, communication and education components to encourage behavior modification (improved self-care) through telehealth methodology.

Background and Significance: Heart failure related admissions, as a primary or secondary diagnosis, are among the leading causes of hospitalizations in the United States (Emory Healthcare, 2016). Surprisingly, of those patients discharged with a primary diagnosis of heart failure, 20% are readmitted to the hospital within thirty days (Feltner et. al, 2014). Heart failure related re-hospitalizations highlight …

Retrospective Analysis Of Body Mass Index Screening And Obesity Counseling In A Primary Care Setting: Comparative Analysis Of Demographic Variables And Co-Morbidities, Christina Fisher Higdon

DNP Projects

Study Purpose: To assess obesity screening and counseling in patients at annual wellness exams in an urban primary care clinic. Specific aims of the study: determine percentage of patients with documented body mass index (BMI), ICD-9/ICD-10 diagnosis of overweight or obesity, documentation of education or a follow-up plan for weight management, follow-up visit for weight loss and documentation by provider, and comparative analysis of co-morbidities and demographic variables during well-exam visits.

Target Population and Measures: Adults over the age of 18 in an urban primary care clinic with a BMI greater than 25 kilograms (kg)/meters squared (m2). BMI screening and …

An Evaluation Of The Screening And Management Of Childhood Overweight And Obesity In The Primary Care Setting, Diane L. Crutcher

DNP Projects

Background: Worldwide, the World Health Organization (2016) estimates that forty-two million children from two to five years of age are overweight or obese. In the United States, Kentucky ranks sixth for the highest rate of overweight youth in the nation (Partnership for Fit Kentucky, 2009). The long term consequences of overweight and obesity are early onset of adult chronic diseases as well as social and psychological issues in childhood and adulthood.

Purpose: The objective of this gap analysis was to assess BMI screening and weight management of children ages two to five who presented for a well-child check …

Polyphenol Content And Differential Expression Of Flavonoid Biosynthetic Pathway Genes Of Fragaria Spp. With White Fruit, Sutapa Roy

Theses and Dissertations--Plant and Soil Sciences

Strawberries are a rich source of polyphenols which contribute to berry color and plant disease resistance, and have been shown to lower the risk of many chronic when consumed. While a considerable body of work exists on the polyphenolic composition of commercial strawberry (Fragaria x ananassa Duch.), less information is available concerning polyphenols in Fragaria vesca, or Alpine strawberry, considered a model system for the Rosaceae family of crop species. The study of natural and genetically-engineered F. vesca mutants with white fruit can provide unique insight into regulation of metabolic flux through the complex branched phenylpropanoid/flavonoid biosynthetic pathway. …

Toxicity Of Engineered Nanomaterials To Plant Growth Promoting Rhizobacteria, Ricky W. Lewis

Theses and Dissertations--Plant and Soil Sciences

Engineered nanomaterials (ENMs) have become ubiquitous in consumer products and industrial applications, and consequently the environment. Much of the environmentally released ENMs are expected to enter terrestrial ecosystems via land application of nano-enriched biosolids to agricultural fields. Among the organisms most likely to encounter nano-enriched biosolids are the key soil bacteria known as plant growth promoting rhizobacteria (PGPR). I reviewed what is known concerning the toxicological effects of ENMs to PGPR and observed the need for high-throughput methods to evaluate lethal and sublethal toxic responses of aerobic microbes. I addressed this issue by developing high-throughput microplate assays which allowed me …

Tillage And Fertilization Influences On Autotrophic Nitrifiers In Agricultural Soil, Shuang Liu

Theses and Dissertations--Plant and Soil Sciences

Nitrification is a biological oxidation of NH₃ to NO₂^- and then to NO₃^-. Understanding how the nitrifier community responds to agricultural management is essential because the community composition is complex and functional distinction of subgroups occurs. Better managing nitrifiers could benefit the environment by increasing nitrogen (N) fertilizer use efficiency, decreasing NO₃^- leaching, and reducing NO and N₂O emissions. This study examined how long-term N fertilization and tillage influenced nitrifier density, ratios, nitrification rates, and the community structure of ammonia-oxidizing bacteria (AOB), ammonia-oxidizing archaea (AOA), and nitrite-oxidizing bacteria (NOB). The …

Studies On Regulation Of Pqq-Dependent Phosphate Solubilization Among Rhizosphere Dwelling Bacteria, Ran An

Theses and Dissertations--Plant and Soil Sciences

Plant growth promotion can be enhanced by soil- and rhizosphere-dwelling bacteria by a several different methods. One method is by promoting nutrient acquisition from soil. Phosphorus is an essential nutrient that plants obtain from soil, but in many cases it is immobilized in forms that are not available for plant uptake. Bacteria can solubilize insoluble soil phosphates by secreting gluconic acid. This chemical is produced from glucose by the activity of the bacterial enzyme glucose dehydrogenase, which requires a coenzyme called PQQ. In this dissertation, I studied the regulation of the glucose dehydrogenase enzyme and the PQQ coenzyme in the …