Digital Commons Network^™

Entire Issue Vol. 7 No. 2

internetowy Kwartalnik Antymonopolowy i Regulacyjny (internet Quarterly on Antitrust and Regulation)

Vol 7(2)

Experimental Study Of Supercritical Co2 Injected Into Water Saturated Medium Rank Coal By X-Ray Microct, Yihuai Zhang, Maxim Lebedev, Hongyan Yu, Stefan Iglauer

Research outputs 2014 to 2021

Carbon dioxide geosequestration into deep unmineable coal seams is a technique which can mitigate anthropogenic greenhouse gas emissions. However, coal composition is always complex, and some minerals such as calcite chemically react when exposed to the acidic environment (which is created by scCO2 mixing with formation water). These reactive transport processes are still poorly understood. We thus imaged a water-bearing heterogeneous coal (calcite rich) core before and after scCO2 injection in-situ at high resolutions (3.43 µm) in 3D via X-ray in-situ microCT flooding system. Indeed, the calcite-coal mixed layer was partially dissolved, and absolute porosity and connectivity significantly increased. We …

Harding University Spring Sing Program 2018

Spring Sing

Program for the 2018 Spring Sing Performance at Harding University

Theme: Heroes & Villains

Hosts & Hostesses: Brooks Bennett, Ava Carmene Galyean, Caroline Ritchie, Maxwell Ross

Individual Growth Through Forgiveness: A Multiple Case Study On The Process Of Forgiveness, Bianca Kazoun

Walden Dissertations and Doctoral Studies

Psychology researchers have been gathering information regarding the positive effects of forgiveness, demonstrating that they contribute to better overall physical and emotional wellbeing. Individuals who have suffered a transgression can remain in a place of destructive anger and resentment for years. Long-term, these negative states can have deleterious effects emotionally, physically, and socially. Understanding how to help those who are suffering move past their victimization can have a positive impact. It is therefore important to conduct research to better understand forgiveness through the lived experience of individuals who have experienced some form of victimization. Using evolutionary psychology as the theoretical …

Association Between Age Of Women When Diagnosed With Endometriosis And Infertility, Whitney Kennedy

Walden Dissertations and Doctoral Studies

Abstract

Because endometriosis is considered to be the primary cause of infertility in women and

the diagnosis is known to be delayed by many years, it is important to understand the

association between endometriosis and infertility. The purpose of this cross-sectional,

secondary data analysis study was to determine whether there was an association between

the age of women when diagnosed with endometriosis and infertility. Using the general

model of total patient delay (i.e., the Andersen model) as a theoretical foundation, data

for this study was collected by assessing patient medical records of women with

endometriosis at multiple OB-GYN clinics in …

Teacher Morale In A Turnaround School, Louis Lane

Walden Dissertations and Doctoral Studies

Teacher turnover has a significant effect on the overall success of schools. The use of comprehensive turnaround strategies such as the conservatorship process created a problem for a small Southeastern high school by affecting teacher retention rate. A qualitative approach was used to investigate how aspects of turnaround strategies influenced teacher morale, which may have contributed to the small Southeastern high school's lower than average teacher retention rate. Bandura's self-efficacy theory provided the conceptual framework for this qualitative case study. The research question addressed teachers' perspectives of morale as well as their views and experiences with the conservatorship process. Semistructured …

Shortage Of Licensed Independent Social Workers With The Training Supervision Designation, Justa Link

Walden Dissertations and Doctoral Studies

There is a shortage of Licensed Independent Social Workers with the Training Supervision Designation (LISW-S) in a county in rural Ohio. If there are not enough LISW-Ss, social workers may not have the ability or opportunity to work independently or gain the supervision needed to become more competent in specific areas of practice. The purpose of this project was to gain a better understanding of why some social workers in rural Ohio decide not to pursue an LISW-S credential, as well as whether there are resources or incentives that might prompt individuals to pursue this credential. This action research project …

Effectiveness Of A University Bilingual Degree Program Among Overseas Chinese, Sherry Liu

Walden Dissertations and Doctoral Studies

The language and communication skills of foreign students have long been a concern in

U.S. universities. The majority of U.S. universities require foreign students for whom English is not their native language to take English language proficiency tests such as the Test of English as a Foreign Language (TOEFL) as part of admission requirements. Some universities have included interventions to increase the success of Chinese students against their struggle to understand English course content. One such program is the Gateway to Successful Tomorrow Bilingual Degree Program (GST). The gap to be addressed on this study was that the effectiveness of …

Improving Workers' Safety And Health In The Zimbabwean Mining And Quarrying Industry, Bernard Mabika

Walden Dissertations and Doctoral Studies

Lack of effective occupational safety and health (OSH) strategies is a reason that

workplace accidents in the mining and quarrying industry remain high, making the

industry one of the riskiest operations worldwide. The purpose of this multiple case study

was to explore successful strategies mining and quarrying leaders in Zimbabwe used to

improve OSH. The key research question addressed successful strategies leaders in the

mining and quarrying industry use to improve employee occupational safety and health in

Zimbabwe. Six successful business leaders from 3 mining and quarrying mines in

Zimbabwe demonstrated an exception to unsafe practices, particularly through their

exceptional …

Scope Management Strategies For Engineering Leaders To Improve Project Success Rates, Kevin Lee Ramage

Walden Dissertations and Doctoral Studies

Civil engineering projects undertaken without successful implementation of scope management strategies by project leaders are approximately 10% more likely to fail than projects undertaken with scope management strategies. Using scope management theory, the purpose of this single case study was to explore scope management strategies used by some project leaders in the engineering field to improve project success rates. Data were collected using semistructured interviews with 3 purposefully selected project leaders in Georgia, and a review of project completion reports, budget reports, government proposals, and scope management documents. Data analysis occurred using Yin's 5-step process of compiling, disassembling, reassembling, interpreting, …

Strategies For Improving Energy Conservation On A Military Installation, Samuel Francis Richardson

Walden Dissertations and Doctoral Studies

Energy is an essential component required to execute missions throughout military organizations. Failing to sustain energy efficiency in military units could cause mission failures throughout the Department of Defense. As a result, efficient energy management has become a major priority for Air National Guard units as well as other military organizations around the globe. The purpose of this qualitative single case study was to gain an understanding of strategies used by front-line military supervisors to reduce energy consumption through behavioral change on a military installation located in Maryland. The central question explored strategies that front-line military supervisors use to change …

Haitian Votes Matter: Haitian Immigrants In Florida In Local Politics And Government, Bobb Rousseau

Walden Dissertations and Doctoral Studies

This qualitative study investigated perceived barriers to the incorporation of Haitian immigrants in Florida into local politics and government. The theoretical framework for this study was Marschall and Mikulska's theory of minority political incorporation to better understand the political ambition of Haitian immigrants to emerge as candidates and voters toward achieving electoral success and a substantive representation. The research question addressed the lived experiences and perceptions of Haitian immigrants related to barriers to their political mobilization at district, state, and federal levels. A phenomenological study design was used with open-ended interviews of 10 Haitian Americans who lived in Florida for …

Time Banks As Aging-In-Place Initiatives, Calli Sajnani

Walden Dissertations and Doctoral Studies

There has been growing concern over how state and federal governments can support the increasing population of aging Americans and their need for long-term care. Current insurance funding models cover acute hospitalization and skilled care only, leaving unskilled care needs and homemaker services at the full expense of those in need. Time banking allows individuals to exchange or barter time for goods or services without monetary payment. There is insufficient evidence to determine if members believe time banks to be a viable alternative to support aging-in-place care needs. This phenomenological study explored time banking as a potential vehicle for nonskilled …

Accessibility To Health Care Services For Children With Autism Spectrum Disorders, Leanne Elizabeth Scalli

Walden Dissertations and Doctoral Studies

The study was an investigation into health care accessibility for children with autism spectrum disorder (ASD) following the transition to a private Medicaid system in the state of Florida. Pilot studies of managed Medicaid programs focused on costs and did not address how changes to the system impacted access to health care services. There were limited studies designed to understand how a change in the system, such as a privatization, would affect vulnerable populations such as young children with ASD. Additional concerns existed for children that were historically underserved by the health care system such as African American and Latino …

Weight Bias In Healthcare: An Investigation Of Impact On Obesity, Jennifer Scheffler, Fnp

Walden Dissertations and Doctoral Studies

More than two-thirds of Americans are obese or overweight. Obesity rates have risen to an epidemic level, contributing to health inequalities and leading to reduced health-related quality of life. When obese and overweight persons face weight bias by health care providers, fragmented care may occur. Ensuring positive relationships with healthcare providers is important in helping those who are obese or overweight. The purpose of this project was to understand the factors that contribute to negative weight bias in the provider-patient relationship and to identify the most effective interventions that would reduce stigmatizing attitudes and support self-awareness, acceptance, and resolution for …

A Phenomenological Exploration Of Parent Experiences That Influence Positive Adoption Outcomes, Deena Shelton

Walden Dissertations and Doctoral Studies

Children who age out of foster care face adjustments and mental health issues at higher rates than their peers, but those who are adopted have the opportunity to heal from previous trauma and experience better outcomes. To create healthy family systems for adopted children, adoptive parents need support and guidance as they personally adjust and help their children adjust to a new family system. Previous research has focused on child identifiers rather than on the broader family system in efforts to understand adoption success and failure. In this transcendental phenomenological study, adoptive parents provided their lived experiences of support during …

Police Stress: An Analysis Of The Impact On Child Sexual Exploitation Investigators, Damon Landon Simmons

Walden Dissertations and Doctoral Studies

The psychological and physiological effects of work-related stress on law enforcement causes high morbidity and mortality rates and rates of alcoholism, substance abuse, domestic violence, and suicide higher than the national average. The purpose of this explanatory sequential mixed-methods study was to examine whether work-related stress experienced by child sexual exploitation (CSE) and child sexual abuse (CSA) investigators differ from that of other duty assigned subgroups. I used Karasek's job demands-control model as the theoretical framework for this study. I conducted the study within a medium sized law enforcement agency in eastern Washington State. The sample in the quantitative study …

Relationship Between Airline Category, Geographical Region, And Safety Performance, Peter Simpson

Walden Dissertations and Doctoral Studies

Passengers rank safety as a key factor in airline choice. Thus, safety performance impacts an airline's ability to attract customers. The purpose of this correlational study was to examine the relationship and difference between airline category low-cost carriers (LCCs) and full-service carriers (FSCs), geographical region, and safety performance measured by accident rates. The target population comprised all airlines in all countries that had an accident during the 14-year period 2004 to 2017. Data consisted of archival data of all global airline accidents and airline departure frequencies for the 14-year period. The theory of organizational accidents in complex sociotechnical systems explains …

Case Study Of Inclusive Environments For Lesbian, Gay, Bisexual, Transgender Employees, Darin Dale Stephens

Walden Dissertations and Doctoral Studies

Despite the positive changes occurring regarding American attitudes toward members of the Lesbian, Gay, Bisexual and Transgender (LGBT) community, empirical evidence indicates that LGBT individuals do not believe inclusive environments exist, as 48% of the population remains closeted at work. A gap exists in the literature relating to the formulation of practical solutions that establish and sustain inclusive environments. The purpose of this qualitative case study was to identify the possible influence of cultural lag on the workplace engagement of LGBT employees. Ogburn's cultural lag theory served as the conceptual framework. The following research questions guided the study: (a) The …

Improved Rehabilitation By Improving Discharge Processes To Decrease Readmissions, Deborah A. Walton

Walden Dissertations and Doctoral Studies

Inadequate discharge planning for individuals with chronic illnesses or injuries is associated with increased readmissions to the hospital or rehabilitation facility where the original treatments were administered. To help ensure the recovery of discharged patients and avoid readmissions, discharge planners guide medication and care processes. The rate of readmissions was high in a stand-alone rehabilitation center due to ineffective discharge plans. Patients, family members, and caregivers lacked knowledge about medications, treatments, and self-care guidelines after the patient left the facility. The purpose of this project was to ascertain the impact of improved discharge processes using the (a) IDEAL Discharge Planning …

A Program Evaluation Of A Preadolescent Girls' Youth Development Program, Linda F. Weekley

Walden Dissertations and Doctoral Studies

Programs that include skills to help girls successfully navigate the difficulties of preadolescence have been shown to be beneficial. One such youth development program in the southeastern part of the United States began in 2014 but has had no formal evaluation completed. The purpose of this qualitative study was to conduct a utilization-focused process evaluation, asking questions that addressed the perceptions of a school leader (n = 1) and volunteers of the program (n = 8). Their input was solicited concerning successful implementation strategies used, and recommendations for adaptations, recruitment, and volunteer training. Semistructured interviews were conducted using predetermined open-ended, …

Integration Of Learning Activities For Improved Performance On The Nclex-Rn Exam, Erika Wilkinson

Walden Dissertations and Doctoral Studies

An institute of higher education located in the United States was unable to maintain the required first-time pass rate, on the National Council Licensure Examination for Registered Nurses (NCLEX-RN) exam, by nursing graduates, as defined by their State Board of Nursing and accreditation body. Failure to meet these requirements resulted in a corrective action plan and fewer licensed nurses able to enter practice. The purpose of this study was to identify curricular changes to the associate nursing program to improve the first time pass rate by their nursing graduates. Benner's theory of skill acquisition was used as the conceptual framework …

Digital Fundraising Strategies For Nonprofit Marketing Leaders In International Markets, John Basco

Walden Dissertations and Doctoral Studies

Leaders of North American nonprofit healthcare organizations require funding from international markets but lack the resources to reach these markets through traditional marketing or the skills to reach them through digital marketing, a cost-effective alternative. The purpose of this multiple case study was to document digital fundraising strategies successfully used to reach international markets by the marketing leaders of 5 North American nonprofit healthcare organizations. Participants in the study were involved in implementing digital fundraising strategies. Marketing systems theory was the framework for the study. Data were collected through semistructured interviews and analysis of documents that illustrated the digital marketing …

Analytic Extensions To The Data Model For Management Analytics And Decision Support In The Big Data Environment, Nsikak Etim Akpakpan

Walden Dissertations and Doctoral Studies

From 2006 to 2016, an estimated average of 50% of big data analytics and decision support projects failed to deliver acceptable and actionable outputs to business users. The resulting management inefficiency came with high cost, and wasted investments estimated at $2.7 trillion in 2016 for companies in the United States. The purpose of this quantitative descriptive study was to examine the data model of a typical data analytics project in a big data environment for opportunities to improve the information created for management problem-solving. The research questions focused on finding artifacts within enterprise data to model key business scenarios for …

Leadership Development Strategies To Build Leaders Through Mentorship Programs, Devin Bradley

Walden Dissertations and Doctoral Studies

Developing employees to assume leadership positions has never been more critical for organizational leaders given the competitive climate and the shortage of executive leaders. Organizations must develop future leaders at unprecedented rates to assume roles and responsibilities of the current executive leaders who will leave the organization due to retirement and other forms of attrition. Using mentorship theory, the purpose of this multicase study was to explore strategies that business leaders use to successfully improve their mentoring programs for employee leadership development. The target population consisted of 3 business leaders located in central Florida with successful experience in improving their …

A Limited Rational Choice Theory In Local Public Health Decision Making, Lona Bryan

Walden Dissertations and Doctoral Studies

The threat and occurrence of terrorist attacks have increased in the United States since September 2011, heightening concerns for weaponized anthrax, other biological pathogens, and epidemics and pandemics. Early decisions and funding levels in local public health agencies can be the first line of defense or first point of failure; yet little is understood about how decisions are made when there are budget cuts before a biological event happens. Using Lindblom's conceptualization of limited rational choice theory, the purpose of this single case study was to understand how a local public health official made decisions after budget cuts in a …

Perceptions Of Black Heterosexual Men In An Involuntarily Childless Relationship Considering Adoption, Richard P. Campbell

Walden Dissertations and Doctoral Studies

Research on involuntary childlessness and adoption among heterosexuals is primarily focused on women's needs and perceptions. Consequently, little is known about how men view childlessness and adoption, and less is known about Black men's perceptions. The purpose of this qualitative case study was to explore Black heterosexual men's experiences of considering adoption when involved in an involuntarily childless relationship. Bronfenbrenner's ecological systems theory served as a foundation for this study. Data were derived from semi structured interviews with 7 participants and 3 adoption professionals. Transcribed and coded data were analyzed using MAXQDA 2018, a qualitative data analysis software. Initial codes …

Strategies For Motivating Sales Employees' Performance Within Small Businesses In The United States, Wesley Chikwanda Chishimba

Walden Dissertations and Doctoral Studies

The loss of revenue, profits, brand, and corporate sustainability are possible for companies whose managers do not use strategies to motivate employee sales performance. The purpose of this multiple case study was to explore the strategies managers use to motivate sales employees' performance. A purposeful sample of 3 managers from U.S. companies with sales employees shared their strategies to motivate sales employees' performance. Methodological triangulation was used to review and analyze information from semistructured interviews, journal notes, member checking data, and review and analysis of relevant company documents. Additionally, coding indicated 4 main themes supporting the benefits of strategies to …

Childhood Asthma In The Midwest, Tiffany Delane

Walden Dissertations and Doctoral Studies

In spite of the National Asthma Education and Prevention Program guidelines outlining how to diagnose, treat, and educate asthmatics, asthma morbidity and mortality rates are still mounting. Furthermore, the minority population has disproportionately higher rates of unfavorable outcomes from asthma, thereby diminishing their quality of life. The study's theoretical framework was based on the health belief model and explored associations of asthma control with self-efficacy and asthma education. Few studies focus on asthma inequity. The purpose of this quantitative study was to assess relationships between asthma control, race, asthma education, and healthcare utilization amongst asthmatic children residing in the Midwest. …

Changes In Attitudes Towards Substance Use Among High School Students, Laura Sue Catherine Elias

Walden Dissertations and Doctoral Studies

Use of alcohol and illicit drugs during adolescent development can have negative effects on cognitive functioning and mental health. The purpose of this cross sectional study was to examine grade level, sex, athletic affiliation, and ethnicity as they relate to substance-using attitudes to isolate the period in which shifts in attitudes toward substance use in adolescents occur. The social learning theory provided the framework for the study. Participants included 276 high school students from a midsized Midwestern city. Students in the ninth, 10th, 11th, and 12th grades who participated in the study were asked to complete a brief electronic survey …