Digital Commons Network^™

Computer Simulations Of Muscle Driven Undulatory Locomotion, Ye Luo

Dissertations

A novel muscle driven method is developed to mimic contracting and expanding of muscles, in a fish-like swimming body, which cause its body flapping in the transversal direction and create thrust force to push its body to cruise in the longitudinal direction. The muscle deformation is realized by using the RATTLE constraint algorithm. The turbulent fluids are treated by a multi-relaxation time lattice Boltzmann method with a large eddy simulation. The fish body is dealt with a lattice spring model and interactions between fluids and solid structures are handled by a direct-forcing immersed boundary method. Validations are conducted by comparing …

How Elementary Teachers Demonstrate Leadership In The Classroom To Increase Science Learning, Dipsy Anais Etanislao Gonzalez

Dissertations

In the DR, the need of producing drastic changes in students’ outcomes fostered the adaptation of a professional development (PD) program to improve the public education system. In 2013, the National Institute for Teacher Preparation chose the School Centered Continuous Teacher’s Preparation (EFCCE, acronym in Spanish) PD program to help teachers with the needed transformation. This program aimed to form knowledgeable and skillful teachers who exhibit instructional leadership in the classroom.

This qualitative, multiple instrumental case study involved 10 Dominican science elementary teachers who had completed the EFCCE program and who had self-identified as a teacher actively implementing engaging science …

An Exploration Of Preschool Choice With Low-Income Families: The Critical Role Of Positive Attitudes, Behavioral Norms And Control Beliefs, Laurel E. Schmitt

Dissertations

Since the 1960s preschool has been seen as a potential equalizer for children of poverty as they enter kindergarten and long term studies of state and federal preschools have documented positive impacts, especially for low-income students. What has yet to be deeply explored is guardians’ decision-making processes to explain the lack of enrollment even when the stated barriers are eliminated (Obi, 2011; Payne, 1994; Swartz, 1996).

The purpose of this qualitative study was to describe and interpret, through a phenomenological lens, how low income parents and guardians made decisions to enroll their child or dependent in a preschool program. I …

Parent And Guardian Perspectives Regarding Attendance: Evidence From A Governmental Early Childhood Education And Care Program, Rita L. Cruz Santelises

Dissertations

In 2013, the Dominican government began the implementation of a national plan called Quisqueya Empieza Contigo (QEC) (Exec. Order No. 102, 2013), aimed to fulfill the needs of children zero to five years old holistically. The National Institute of Comprehensive Care (INAIPI, acronym in Spanish) carries two of the most ambitious programs embedded in this national plan. Early Childhood is the governmental institution authorized to carry out this recent intervention. The intervention has increased coverage of early childhood services through two programs: Programmed Comprehensive Family Care centered on the community (Centro de Atención Familiar e Infancia, [CAFI]) and the Comprehensive …

Integrating The Critical Success Factors (Csf) Of Customer Relationship Management (Crm), Customer Satisfaction And Customer Retention In The Oil And Gas Sector: The Case Of Uae-Adnoc, Sawsan Mohammed Shouib Al Khouri

Dissertations

Customer Relationship Management (CRM) is a complex and revolutionary strategic management concept that aims at integrating organisational functions to present consumers with a single face of the organization. To this end, the presentation of this face of the company must be agreed upon by the multi-functional teams in the organization, especially regarding what the face of the organization is and/or how it should be presented. A number of critical success factors must apply if the implementation of CRM is to succeed. This study investigated the possibility of integrating the critical success factors (CSF) of customer relationship management (CRM), customer satisfaction …

Assessment Of The Impact Of Climate Change On Land Use In The Emirate Of Abu Dhabi - An Environmental And Socio-Economic Perspective, Latifa Saeed Al Blooshi

Dissertations

This dissertation focuses on the impact of climate change on land use in the Emirate of Abu Dhabi – UAE. Climate change is a significant challenge resulting from natural and anthropogenic causes. Land use can stimulate changes in communities under climate change. The main objective of this dissertation is to assess the impact of climate change from an environmental and socio-economic perspective. In 2001, coastal sabkhas, mixed class and urbanized areas experienced an increase in temperature by (0.67, 1.14 and 1.16°C) respectively. In cities, urban areas are warmer than neighbouring rural areas. Unexpectedly, urbanization in desert areas in UAE led …

Teachers’ Experiences In Schools That Serve Rural Communities In The Dominican Republic: Their Readiness To Respond To Challenges, Nidia Beatriz Columna Pérez

Dissertations

In 2016, the Dominican Institute for Evaluation and Research of Educational Quality (IDEICE), indicated educational inequalities due to the geographical location of schools in the Dominican Republic. Despite several policies enacted by the Ministry of Education, including curriculum and teacher credentialing reforms, success indicators such as completion rates and academic performance still suggest a major achievement gap. Limitations in understanding the unique characteristics of schools that serve student in rural communities contribute to education policies that may not be sufficiently sensitive to those circumstances. One particular area of insufficient understanding is the manner in which teachers experience teaching in schools …

The Effects Of Balanced Scorecard Implementation On Organizational Performance: The Case Of The Healthcare Sector In The Uae, Alaa Salah Mushtaha

Dissertations

The aim of this study is to identify the critical success factors (CSFs) that positively affect balanced scorecard (BSC) implementation in the healthcare sector in the United Arab Emirates (UAE) and to examine the impact of BSC implementation on organizational performance. The BSC theory has been applied in various industries, including manufacturing, the public sector, banking and insurance, hospitality, and healthcare. However, little knowledge has been revealed about its design and implementation in healthcare organizations. In addition, no published articles exist on BSC implementation in the context of the healthcare industry in the UAE, which shows a clear gap when …

Activated Carbon Nanofibers From Renewable (Lignin) And Waste Resources (Recycled Pet) And Their Adsorption Capacity Of Refractory Sulfur Compounds From Fossil Fuels, Efstratios Svinterikos

Dissertations

Dementia is a condition in which higher mental functions are disrupted. It currently affects an estimated 57 million people throughout the world. Dementia diagnosis is difficult since neither anatomical indicator nor functional testing are currently sufficiently sensitive or specific. There remains a long list of outstanding issues that must be addressed. First, multimodal diagnosis has yet to be introduced into the early stages of dementia screening. Second, there is no accurate instrument for predicting the progression of pre-dementia. Third, non-invasive testing cannot be used to provide differential diagnoses. By creating ML models of normal and accelerated brain aging, we intend …

Increasing Trust And Teacher Voice In Order To Improve Teacher Evaluation In Chicago, Tim Riff

Dissertations

Chicago Public Schools’ teacher evaluation program includes cycles of observation and feedback as well as student test scores to determine teacher evaluation scores. Teachers have expressed support for and trust in this teacher evaluation program, yet they have misgivings about the inclusion of standardized student test scores. An examination of best practices in teacher evaluation and its implementation in Chicago, through the voices of the teachers and evaluators, identifies opportunities for improvement. By supporting teachers and administrators to engage in professional conversations, offering teachers a voice in how teacher evaluation is implemented, and eliminating the use of standardized student test …

The Effects Of Socioeconomic Status On Mathematical Achievement, Joshua Lee Holt

Dissertations

Socioeconomic background is one of the strongest, best-established predictors of a student’s academic achievement (Claro, Paunesku, & Dweck, 2016). The purpose of this study was to conclude the difference in mathematics achievement levels based on socioeconomic status determined by the concentration of free and reduced price meal rates in elementary schools grades K-4. Identification of specific mathematics achievement gaps could lead to a more individualized program of instruction and increased awareness of professional learning needs at instructional sites. To recognize if there was a difference in mathematical achievement levels based on socioeconomic concentration, three quantitative research questions were asked as …

The Organizational Socialization Experiences Of First-Year Principals, Alicia M. Montgomery

Dissertations

Purpose: The purpose of this mixed methods study was to identify and describe the organizational socialization processes implemented by school districts to support first-year principals. In addition, it was the purpose of this study to identify and describe the degree to which first-year principals perceive these processes are effective.

Methodology: This study identified and described district implementation of organizational socialization supporting first-year principals enrolled in the ACSA Clear Administrative Credentialing Program. The participants completed a survey and were interviewed, which provide the data analyzed.

Findings: The are several findings from this study. Only two thirds of participants experienced organizational socialization. …

The Development And Validation Of A Tool To Measure Self-Confidence And Anxiety In Nursing Students While Making Clinical Decisions, Krista A. White

Dissertations

Clinical decision making (CDM) is a cornerstone skill for nurses. Self-confidence and anxiety are two affective influences that impact the learning and adeptness of CDM. Currently, no instruments exist that measure perceived self-confidence and anxiety level of undergraduate nursing students related to CDM. The purpose of this research was to develop, test, and establish psychometric properties for a quantitative instrument that measures the levels of self-confidence and anxiety experienced by undergraduate nursing students while making clinical decisions. The new tool is entitled the Nursing Anxiety and Self-Confidence with Clinical Decision Making (NASC-CDM) scale. The tool is a self-report, Likert-type instrument …

New Catalytic Reactions In Carbohydrate Chemistry, Scott Geringer

Dissertations

Carbohydrates or sugars are some of the most diverse and abundant biological molecules. They are involved in a multitude of processes in the body such as fertilization, cell-cell communication, and cancer metathesis. Because of these vital functions, the study of sugars is rapidly growing field. The field however is limited due to the complex nature of sugars which results in difficulties in obtaining large quantities for study.

Protecting group manipulation is a large emphasis area in carbohydrate chemistry due to the need to selectively protect different functional groups of each molecule during synthesis. Catalytic and selective cleavage of protecting groups …

Expert Teachers Practices To Aide In Student Achievement, Jt Cameron

Dissertations

Purpose: The purpose of this phenomenological study was to identify and describe the activities expert mathematics teachers in comprehensive high schools that employ Professional Learning Communities and structured academic intervention use with respect to school culture, classroom culture, interventions, differentiated instruction, and first best instruction to make every student in their classroom more successful in mathematics at the end of their term regardless of where the student began.

Methodology: The researcher identified comprehensive public high schools within the state of California. Of this target population, purposeful sampling was applied to identify participants that were rich with information and that met …

Music Education As A Strategy To Narrow The Achievement Gap: A Causal-Comparative Analysis Of Band And Choir Enrollment And Academic Achievement Of Low Socioeconomic Status Students, William Zwikelmaier

Dissertations

There is a gap in the knowledge pertaining to socioeconomic status as a variable in academic achievement among students those who enroll in band and/or choir in public high schools in America. Research has shown that students who engage in music study consistently show higher levels of academic achievement in other subjects compared to their non-music study peers. It is necessary to study those who typically do not perform at the same academic levels as their peers (low socioeconomic status (SES) students) and determine if the formal study of music alone can serve as a strategy to contribute to closing …

The Effects Of An Experiential Learning Course On Secondary Student Achievement And Motivation In Geometry, Chanua Ross, Ted Gray

Dissertations

In 2012, the President’s Council on the Advancement of Science and Technology (PCAST) predicted one million jobs in the fields of science, technology, engineering, and math (STEM) would go unfilled in the United States due to the lack of interested and qualified graduates matriculating in American universities, colleges, and technical schools (PCAST, 2012). In order to bolster interest and proficiency in STEM, research suggests instructional pedagogy incorporate experiential learning focused on solving real societal problems that are relevant to learners. Few studies have investigated the effects of such pedagogy within the context of a secondary-level, geometry course. A quantitative, quasi-experimental …

High-Order Adaptive Synchrosqueezing Transform, Jawaher Alzahrani

Dissertations

The prevalence of the separation of multicomponent non-stationary signals across many elds of research makes this concept an important subject of study. The synchrosqueezing transform (SST) is a particular type of reassignment method. It aims to separate and recover the components of a multicomponent non-stationary signal. The short time Fourier transform (STFT)-based SST (FSST) and the continuous wavelet transform (CWT)based SST (WSST) have been used in engineering and medical data analysis applications. The current study introduces the dierent versions of FSST and WSST to estimate instantaneous frequency (IF) and to recover components. It has a good concentration and reconstruction for …

Using Online Interventions To Address Summer Learning Loss In Rising Sixth-Graders, Scott Osborne, Robert Shaw

Dissertations

Summer learning loss affects students to different degrees across curriculum areas. Traditional content review methods have often included workbooks or practice packets that lacked real-time feedback to the student. This study provided optional weekly online math and science review lessons to rising sixthgraders in two midwestern schools over the ten-week summer break. Students received both automated feedback from the online environment and teacher feedback in response to student questions or information students needed to acquire mastery. Students also had the opportunity to revise and edit their work. A test group, summer computer-based intervention group (SCBI), and a control group, completed …

Leading For Excellence: Leadership Behaviors That Support A High-Achieving School Environment, Amy Parangan

Dissertations

Purpose: The purpose of this mixed methods study was to determine the degree of importance for the 12-step principles proposed by Harvey, Drolet, and DeVore (2014) to create a K-12 school environment that fosters high student achievement as perceived by public school elementary principals in Northern California. A secondary purpose was to explore and describe the leadership strategies for implementing the 12-step principles proposed by Harvey et al. (2014) to create a K-12 school environment that fosters high student achievement as perceived by public school elementary principals in Northern California.

Methodology: The researcher used sequential explanatory mixed methods for this …

How Do Student Nurses Of English Language Learner Populations Experience Nclex-Rn Style Questions?, Shawne Manies

Dissertations

The purpose of this qualitative study was to explore how student nurses of English Language Learner (ELL) populations experienced National Council Licensure Examination for Registered Nurses (NCLEX-RN) style questions. Evidence has suggested difficulty in improving the nation’s diversified nursing workforce, resulting in concerns over minority nurse representation. Student nurses of ELL populations are more likely than non-English language learner student nurses to be out of sequence or released from a nursing program. The extant literature has shown that this population of students struggle with NCLEX-RN style questions and that they have significantly lower pass rates than their English-speaking counterparts. Literature …

A Study Of The Impact Of Site-Based Mathematics Professional Development On Student Mathematics Achievement, Christine Attenhofer

Dissertations

Student achievement at one suburban elementary school under study dropped notably in mathematics in one school year, as measured by the state standards assessment. The purpose of this inquiry was to determine what impact ongoing, on-demand, job-embedded, site-based professional development opportunities provided by a full-time, site-base math content area specialist had on teachers' instructional practices and students' mathematics achievement. I implemented a mixed methods approach to this inquiry. I analyzed the end of the year state mathematics standards assessments for second through fifth grade students following the implementation of full-time, site-based professional development provided by a math content area specialist …

The Impact Support Staff Has On School Climate At Comprehensive High Schools From The Perspective Of Principals, Melissa Bako

Dissertations

Purpose: The purpose of this phenomenological study was to identify and describe how high school principals perceive the actions of support staff impact school climate in the areas of safety, teaching and learning, interpersonal relationships, and the institutional environment in comprehensive public high schools in Riverside County, California.

Methodology: The researcher identified comprehensive public high schools within the state of California. Of this target population, purposeful sampling was applied to identify participants that were rich with information and that met specific criteria, and 12 principals were identified. The researcher collected and coded data from in-depth interviews; interview protocol directly …

The Lived Experience Of Non-Degreed Learners From A Time Modified Traditional Baccalaureate In Nursing Program, Stephanie S. Deboor

Dissertations

The purpose of this phenomenological inquiry was to describe, interpret, and gain a deeper understanding of how non-degreed, traditional baccalaureate nursing students experience education in a Time Modified Traditional Program of study.

Impact Of An Active Learning Strategy On Learner Engagement In A Transition To Practice Program, Janiece Paulat

Dissertations

Research is abundant in the use of active learning rather than lecture. The effect on engagement on knowledge retention is also abundant. Most of the studies focus on secondary and higher education. Less research has been found on the link between active learning and engagement especially in transition to practice programs (TTP). Guidelines on content delivery in TTP is minimal. In this prospective, cross-sectional, quasi experimental project, the impact of an active learning strategy on learner engagement was studied. The sample was 14 new nurse graduates of mostly female gender of Millennial generation in a local transition to practice program. …

Development And Testing Of A Measure Of Patient Satisfaction With Nursing Care, Lee A. Schmidt

Dissertations

The purpose of this research was to test an empirically derived measure of patient satisfaction with nursing care. Existing measures of this important phenomenon lack adequate validity and a strong theoretical base. A grounded theory study was completed with patients discharged from medical surgical units of a tertiary care facility.

Trust And Leadership: How Exemplary Superintendents Build Successful Principal Teams In Elementary School Districts, Louann Carlomagno

Dissertations

Purpose: The purpose of this phenomenological study was to identify and describe behaviors exemplary superintendents practice during leadership team meetings to build and maintain trust with their principals based on the facets of trust defined by Tschannen-Moran and Hoy (benevolence, reliability, competency, honesty, and openness).

Methodology: The qualitative use of phenomenology was utilized in this study. Respondents were able to tell their stories, providing semistructured feedback in order for the researcher to gain a deeper understanding of trust building during leadership team meetings. The researcher interviewed 16 principals from Sonoma and San Mateo Counties.

Findings: Examination of qualitative data from …

Factors That Influence Contraceptive Decision-Making In African American Women, An Intergenerational Perspective, Allyssa L. Harris

Dissertations

African American women represent a unique group of women in the United States and have a long history of lack of reproductive freedom. Slavery and forced procreation, sterilization abuses, the Eugenics movement, and federally mandated contraception have all impacted on African American women's independence in contraceptive decision-making. Given this population's history, it is important for healthcare providers to understand African American women's contraceptive decision-making, as women often seek their guidance. The purpose of this dissertation research was to discover the intergenerational influences on African American women's contraceptive decision-making. The specific aims of this study were to: (1) develop an understanding …

Noise Reduction Of Eeg Signals Using Autoencoders Built Upon Gru Based Rnn Layers, Esra Aynali

Dissertations

Understanding the cognitive and functional behaviour of the brain by its electrical activity is an important area of research. Electroencephalography (EEG) is a method that measures and record electrical activities of the brain from the scalp. It has been used for pathology analysis, emotion recognition, clinical and cognitive research, diagnosing various neurological and psychiatric disorders and for other applications. Since the EEG signals are sensitive to activities other than the brain ones, such as eye blinking, eye movement, head movement, etc., it is not possible to record EEG signals without any noise. Thus, it is very important to use an …

The Impact Of Social Media On Improving English Learning Skills: A Case Study Of Uae, Sameer O. A Baniyassen

Dissertations

Social media are one of the current forms of media that have diverse qualities and characteristics. Today, the use of social media is growing day by day at a significant rate. It is in this domain that students can virtually meet with their classmates and their teachers. They can communicate issues that are of significance and are related to their learning process. This study aimed to explore how social media platforms could affect English learning skills and to find whether social media could improve English language skills. The current study used mixed methods involving quantitative and qualitative approaches, such as …