Digital Commons Network^™

Heterogeneity Estimators In Random-Effects Meta-Analysis In Education, Qian Wang

Dissertations

Over the last four decades, meta-analysis has proven to be a vital analysis strategy in educational research for synthesizing research findings from different studies. When synthesizing studies in a meta-analysis, it is common to assume that the true underlying effect varies from study to study, as studies will differ in design, participants, interventions, or sample size that can lead to heterogeneity in their underlying effects. The magnitude of this heterogeneity between studies can be quantified as τ2 in a random-effects meta-analysis. Estimating the between-study heterogeneity (τ2) becomes an important part of random effects meta-analysis reporting, since this quantity plays a …

Middle School Students’ Perceptions, Experiences, And Behaviors Towards Using A Virtual Reality Application To Build Molecules, Dalal Za'al Ali Alrmuny

Dissertations

To deliver successful integration of virtual reality (VR) technology into chemistry education, it is essential that students have clear and positive perceptions about the purpose and the value of such integration. An important part of establishing a plan for integrating virtual reality technology into chemistry education is to explore the current perceptions, experiences, and behaviors of students towards the use of VR technology to establish an initial baseline of skills and areas in need of development. The purpose of this exploratory mixed methods study was to explore the perceptions, experiences, and behaviors of 62 middle school students in the state …

Understanding Creative Pedagogy Of Saudi High School Stem Teachers: Three Case Studies Of Mawhiba And Public Science Classes, Maryam Salman Bojulaia

Dissertations

The Saudi government recently emphasized creative thinking in the education context to change the country’s economy from an oil-based economy to a mindset-based economy (Vision 2030, n.d.). On the other hand, the recent version of the challenges in Saudi K-12 education indicates that significant obstacles impede the promotion of creative thinking. Conventional teaching methods focus on rote memorization and have limited concentration on science, technology, engineering, and mathematics (STEM) disciplines. This research aims to describe and compare the creative pedagogy experiences of STEM educators in a Mawhiba classroom (customized classroom for creative and gifted students) and a public classroom (for …

The Nursing Classroom Climate: Cooler For Traditional-Age Students Who Are Male, Marietta J. Bell-Scriber

Dissertations

The purpose of this study was to describe the nursing classroom climate and the perceptions and experiences of traditional-age student nurses who are male as they relate to the nursing classroom. A qualitative research procedure in the form of a case study was used to answer the descriptive research questions: (a) What is the classroom climate for traditional-age students who are male? (b) If an inequitable or sex-biased classroom environment is found to exist for traditional-age student nurses who are male, what are the nursing faculty behaviors that contributed to this environment? (c) If an inequitable or sex-biased classroom environment …

Where Are The Black Teachers? There Should Be More To Make It Even, Harolyn Harris

Dissertations

For years, Black teachers lived and worked in the communities that they served. I was one of those teachers who lived and worked in my community, but I noticed that there were not many of us. As a Black woman, mother and teacher, I was fully aware of the numbers of Black teachers declining. I wanted to know why.

In this study, I utilized my experience as a Black student, a Black teacher, and a Black administrator to reflect my feelings. I used Critical Race Theory as the theoretical lens on my stories using autoethnography as the research method. I …

Cell Size Control Mechanisms In The Multiple Fission Cell Cycle Of Chlamydomonas, Dianyi Liu

Dissertations

Size homeostasis is achieved by a balance between cell growth and cell division, but the underlying mechanisms are yet fully understood. Green alga Chlamydomonas reinhardtii (Chlamydomonas) is a unique model for size control. Instead of the canonical binary fission cell cycle, Chlamydomonas uses a multiple fission cell cycle where a prolonged G1 phase is followed by rapid alternative n rounds of S/M (DNA synthesis and mitosis) cycles to produce 2ⁿ daughter cells. Two size checkpoints show size-dependence: the Commitment checkpoint governs a minimum size for a cell to divide at least once, and the S/M checkpoint governs the division …

The Influence Of Social Capital On First-Generation African American Gradaute Students: A Grounded Theory, Janeisha Anderson

Dissertations

First-generation African American/Black graduate students face challenges that must be overcome if they are to persist to degree completion. However, literature on factors contributing to their success and circumstances that hinder their academic outcomes is sparse. This qualitative grounded theory study investigated social capital and its influence on first-generation African American/Black graduate students' success. Participants (n = 17) were purposefully selected and included students who were enrolled or had already graduated, and others who had withdrawn from their graduate program. Thematic analysis of 17 interviews identified three primary themes: support within an academic setting, external support outside of an educational …

A Longitudinal Study On The Impact Of Occupational Health And Safety Practices On Employee Productivity At Sibca Llc, Maryam Ibrahim Mohamed Hussain Lari

Dissertations

Occupational health and safety (OHS) refer to practices that businesses use to proactively ensure the health and safety of employees. OHS scholars believe companies can use such practices to improve the health and safety of their organization and employee productivity. This study assesses how OHS practices can impact employee productivity at SIBCA LLC, a UAE-based company. It employed a longitudinal research design with pre- and post-intervention data collection to determine the effect of OHS practices on employee productivity. The study sample comprised 293 SIBCA LLC employees. Participants completed the same questionnaire twice, and productivity data were collected twice, 13 months …

Integrating Kano Model With Data Mining Techniques To Enhance Customer Satisfaction, Khaled Abdulla Ali Al Rabaiei

Dissertations

The business world is becoming more competitive from time to time; therefore, businesses are forced to improve their strategies in every single aspect. So, determining the elements that contribute to the clients' contentment is one of the critical needs of businesses to develop successful products in the market. The Kano model is one of the models that help determine which features must be included in a product or service to improve customer satisfaction. The model focuses on highlighting the most relevant attributes of a product or service along with customers’ estimation of how these attributes can be used to predict …

A Comprehensive Evaluation Of Satellite-Based Precipitation Products And Their Performance In Arid And Temperate Climates, Mohammed Tarig Mahmoud

Dissertations

Accurate and continuous precipitation monitoring is critical to enable effective water resources management; the challenge arises from the spatial and temporal variability of precipitation. The recently launched Global Precipitation Measurement (GPM) satellite has the capability to detect and measure all types of precipitation using advanced instruments. Being at its early stages of development, the products of the GPM IMERG (early, late, and final-run-products) need to be validated using multiple spatial and temporal assessment techniques. Several studies have emerged over the past few years evaluating GPM IMERG results over areas of limited size. These areas were set by hydrologic interest (e.g., …

The Impact Of Internal And External Factors On Female Enrollment In Vocational Training Institutes In The United Arab Emirates: A Phenomenological Qualitative Study, Saada Mubarak Amro

Dissertations

Educational institutes around the world and vocational training institutes, in particular, are concerned with students’ participation and enrollment rates. Great emphasis is placed on the vocational sector and its role in establishing a knowledge-based economy in the United Arab Emirates (UAE), as articulated in the UAE Vision 2021, its economic foresight 2030, and in the recent 50th-anniversary statement released in 2019 by HH Mohammed Rashed Al Maktoum. The importance of this sector is its significance in diversifying the economy, providing employment, and equipping both employed and unemployed nationals with the vocational skills required by local and international markets and industries. …

The Impact Of Performnace Scorecard On Drilling Operations Effectivness: The Case Of Abu Dhabi National Oil Company (Adnoc), Adnan Mohamed Almenhali

Dissertations

The balanced scorecard (BSC) has been newly introduced to drilling operations. This research evaluates the impact of performance scorecard implementation on drilling operations in Abu Dhabi National Oil Company (ADNOC) and the ability to develop and construct a new framework for performance scorecards. The oil and gas sector is critical to the UAE since it is one of the main sources of income driving the economy. UAE is one of the leaders in the region in oil and Gas production. As a result, studies to enhance the performance of the industry and UAE companies are critical for overall economic wellbeing. …

Impacts Of Intermediate And Long-Term Vitamin D Deficiency On The Murine Gastric Epithelial Cells And Acid Secretion, Shaima Raji Sirajudeen

Dissertations

The biological functions of vitamin D (VD) are diverse. It influences immunological response, cell proliferation and differentiation, and calcium homeostasis. However, over one billion people globally are VD deficient. The VD receptors, VDR and PDIA3, mediate the biological activities of VD. Studies on the biological roles of VD are numerous but very little on the stomach. The stomach is divided into three main parts – forestomach, corpus and antrum. Gastric glands, which make up the functional units of the stomach, are made up of numerous cell lineages and are located in the corpus and antrum, which are the glandular parts …

Performance Of Cement-Free Geopolymer Composites Made With Locally Available Industrial Solid Waste Materials, Omar Fawwaz Abbas

Dissertations

This dissertation is concerned with developing sustainable cement-free mortars made with local industrial by-product materials. Ladle slag is generated in mass quantities from secondary steel treatment in the United Arab Emirates (UAE). It is typically disposed of in stockpiles and landfills. Ladle slag is an excellent candidate for geopolymer composites because of its aluminosilicate composition. Such composites are developed by activating industrial by-products in alkaline solutions. This project aims to utilize locally produced ladle slag from the secondary steel treatment in the UAE to produce geopolymer mortars. The effect of various mixture proportions on the developed composites was assessed using …

Key Internal Factors Affecting Safety Performance In The Aviation Industry, Yasser Salah Elyan

Dissertations

Continuously improving aviation safety and enhancing its performance at both the organizational and individual levels is always considered a high priority by the aviation industry in all sectors. In addition, governments and aviation regulatory authorities have put significant efforts into creating a safety culture with clear safety practices at all levels of the organization. Moreover, international aviation organizations and associations worldwide have established safety standards, guidelines, and management systems that are essential to ensure the successful implementation of safety practices. However, based on the reviewed literature and the researcher's knowledge in this area, there is a clear perception gap concerning …

The Impact Of Ecosystem Drivers On Investor Satisfaction In Dubai's Hospitality Industry For Destination Competitiveness And Investment Attraction, Ayesha Mohammed Binlootah

Dissertations

The travel and tourism industry accounts for more than 10% of the global GDP and has become a driver for foreign investments and destination competitiveness. The main objective of this dissertation is to examine the impact of ecosystem drivers (i.e., [C] Core Resources and Attractors, [S] Supporting Factors and Resources, [D] Destination Management, [P] Destination Policy, Planning and Development, and [Q] Qualifying and Amplifying Determinants) on Investor Satisfaction in Dubai's hospitality industry to achieve destination competitiveness for investment attraction. As part of the methodology, a partial least square is used to assess the interaction and impact of the ecosystem drivers …

Particular Pains, Particular Sufferings: Using Sista Circle To Explore Belongingness As A Factor Affecting The Academic Persistence Of Black, Women Doctoral Recipients At Predominantly White Institutions In The South, Jasmine Denise Thornton

Dissertations

The purpose of this study is to understand if belongingness, or the need to belong, is an inhibiting factor for Black women to the completion of doctoral programs, specifically at Predominately White Institutions (PWIs) in the South. This qualitative study employs the Sista Circle methodology to discuss the lived experiences of Black female doctoral recipients from Southern PWIs. The Sense of Belonging Model and the Sista Circle Methodology is used to inform the experiences of Black women doctoral students in relation to their academic persistence and overall programmatic experience. The findings from this study can also provide insight for diversity, …

Software Protection And Secure Authentication For Autonomous Vehicular Cloud Computing, Muhammad Hataba

Dissertations

Artificial Intelligence (AI) is changing every technology we deal with. Autonomy has been a sought-after goal in vehicles, and now more than ever we are very close to that goal. Vehicles before were dumb mechanical devices, now they are becoming smart, computerized, and connected coined as Autonomous Vehicles (AVs). Moreover, researchers found a way to make more use of these enormous capabilities and introduced Autonomous Vehicles Cloud Computing (AVCC). In these platforms, vehicles can lend their unused resources and sensory data to join AVCC.

In this dissertation, we investigate security and privacy issues in AVCC. As background, we built our …

The Expansionist Cause: Union Civil War Commemorations As Weapons Of Colonization In The American West, Lindsey Peterson

Dissertations

Eastern collective remembrances of the American Civil War have dominated discussions of the war’s causes and consequences. The West was located far from major Civil War battlefields and historic sites and therefore deemed peripheral to the war and its legacy. Consequently, historians’ eastern-focused arguments about the war’s historical memory have largely been applied to account for all Union veterans and their families’ experiences, even though the evidence is grounded predominantly in source materials from east of the Mississippi River. Using analytical methods of gender and race, The Expansionist Cause examines Union Civil War commemoration in the trans-Mississippi West to argue …

Communication Matters: A Study Of Communication Between Emergency Managers And Water Systems Professionals Regarding Insufficient Access To Drinking Water, Paula R. Buchanan

Dissertations

In 2021, the United States – specifically the U.S. Bureau of Reclamation – declared its first-ever drinking water shortage for the Colorado River and the Hoover Dam, resulting in cuts to water access for the southwestern United States. Unfortunately, incidents like this one are increasingly likely to occur as access to drinking water has become a more pervasive issue that not only impacts the work of water systems professionals, but also impacts the field of emergency management and its practitioners. In addition, these incidents underscore the need to put a spotlight on communication processes between water systems professionals and emergency …

Cultivating Teacher Expertise In The Landscape Of Green Chemistry: The Development Of Pedagogical Content Knowledge In Beyond Benign’S Lead Teacher Program, Philip Charles Nahlik

Dissertations

Chemistry Education, Green Chemistry, Pedagogical Content Knowledge, Professional Learning Communities, Sustainability, Teacher Training

Evaluating The Impact Of Submarine Groundwater Discharge On Nutrients And Trace Elements In Coastal Systems: The Examples Of The Tuckean Swamp (Australia) And The Mississippi Sound (Usa), Amy Moody

Dissertations

Submarine groundwater discharge (SGD) is the advective flow of both fresh terrestrial groundwater and recirculating seawater through aquifer sediments, which is released into the coastal ocean. In this dissertation, I evaluated the impact of SGD on the distributions and input of trace metals and nutrients. In the Tuckean Swamp, an estuary in Australia dominated by coastal acid sulfate soils, I determined the impact of groundwater on Ba and U during the flood season, when the local aquifer is flushed out after a rapid increase in water table elevation. For Ba and U, groundwater contributed up to 18 and 66 % …

Consistency Of Sleep Across Development And Relations To Executive Functions; Applications To Emerging Adults Transitioning To College And Adolescents With Spina Bifida, Laura Nicholson

Dissertations

College Students, Development, Executive Functioning, Inhibition, Sleep consistency, Spina Bifida

The New Temporary Labor: Regulating The Gig Economy In Austin, Chicago And New York, Ashley Baber

Dissertations

Gig Economy, Labor Market Intermediary, Precarious Labor, Urban Governance

The Political Economy Of Capitalism In The Digital Age, Economic Democracy, And The Case For The Digital Commons, Alec Stubbs

Dissertations

Autonomist Marxism, capitalism, digital commons, digital economy, economic democracy, social factory

The Roles Of A Probiotic Exopolysaccharide In Breast Cancer, Mai Rachel Nguyen

Dissertations

breast cancer, exopolysaccharide, probiotic

Predicting Asian American College Women’S Leadership Intention Using Social Cognitive Career Theory, Jeong-Eun Suh

Dissertations

No abstract provided.

Sources And Distribution Of Microplastics In The United Arab Emirates, Rana Zeeshan Habib

Dissertations

Microplastics (plastic pieces size) are an emerging environmental contaminant that is ubiquitously present in terrestrial, aquatic and aerial environments. United Arab Emirates (UAE) is categorized among the highest domestic waste producing countries (on per capita basis) in the world. A large portion of waste ends up in the environment and contains macro-, meso- and microplastics. No comprehensive study has been carried out in the UAE to investigate the abundance, sources, distribution and impact of microplastics on its environment. Therefore, a comprehensive study to analyze the sources and distribution of microplastics in the UAE was urgently needed. The objective of the …

Implementation Of The Massachusetts Policy On Youth Sport-Related Mild Traumatic Brain Injuries: Perceptions Of Key Personnel At Massachusetts Public And Charter Schools, Gretchen A. Kilbourne

Dissertations

The major purpose of this cross-sectional, descriptive, and explanatory survey research was to assess key school personnel's perceptions of barriers to and facilitators of implementation of the Massachusetts (MA) policy on youth sport-related mild traumatic brain injury (mTBI) to guide, inform, and increase awareness of implementation of this policy.

A Digital Leadership Lens For A Physical World: Digital Transformation Levers Of Control For Incumbent Companies, Michael J. Seals

Dissertations

A new wave of advanced technologies is disrupting companies of all types and transforming business models within every industry. Long-standing industrial firms that rose to prominence in a pre-digital economy are particularly vulnerable. Prevailing views suggest these companies (hereafter referred to as incumbents) must reimagine their value propositions and transform themselves by leveraging today’s advanced technologies. The opportunities provided by these advanced technologies will significantly affect incumbents whether they participate or not. The pursuit of these opportunities, commonly referred to as digital transformation (DX), is the focus of our research.

Traditional technology-enabled business endeavors creating incremental operational improvements fell within …