Digital Commons Network^™

Bs Engineering Technology, Manuf And Cad 2023-24, Arkansas State University - Jonesboro

Bachelor of Science and Education

Manufacturing and Computer Aided Design (CAD) Emphasis

Bs Data Science & Data Analytics, Da 2023-24, Arkansas State University - Jonesboro

Bachelor of Science and Education

Data Analytics Emphasis

Classification Of Adult Income Using Decision Tree, Roland Fiagbe

Data Science and Data Mining

Decision tree is a commonly used data mining methodology for performing classification tasks. It is a tree-based supervised machine learning algorithm that is used to classify or make predictions in a path of how previous questions are answered. Generally, the decision tree algorithm categorizes data into branch-like segments that develop into a tree that contains a root, nodes, and leaves. This project seeks to explore the decision tree methodology and apply it to the Adult Income dataset from the UCI Machine Learning Repository, to determine whether a person makes over 50K per year and determine the necessary factors that improve …

Analyzing The Impact Of Health, Economic, And Demographic Factors On Life Expectancy: A Comparative Study Of Developed And Developing Countries, Mahyar Alinejad

Data Science and Data Mining

This study presents a comprehensive analysis of three prominent machine learning regression models—Random Forest, XGBoost, and Support Vector Machine (SVM)—in the context of predictive analysis. Leveraging a carefully curated dataset, we explore the impact of various hyperparameters on model performance through an exhaustive tuning process. The Random Forest and XGBoost models exhibit robust predictive capabilities, with the former revealing notable insights through feature importance visualization. Additionally, SVM, optimized via GridSearchCV, demonstrates competitive performance. Evaluation metrics, including Mean Squared Error and R-squared, facilitate a thorough comparison of model efficacy. Results highlight nuanced strengths and weaknesses, informing practitioners on the suitability of …

The Primacy Of Openness In Ecological Complexity Theory, Colby Clark

Theses and Dissertations--Philosophy

Five principles are at the foundation of complex systems theory: emergence, openness, contingency, historicity, and indeterminacy. Of those five, the principle of emergence is easily the most prevalent. Simply put, emergence refers to the idea that some wholes cannot be properly accounted for by appealing to individual explanations of the parts that compose it. In ecological complexity theory, the principle of emergence is strongly associated with the self-organizing feedbacks that often identify the structural framework of ecosystems.

Within the last half century, the intense focus on the principle of emergence has engendered the development of many conceptual distinctions that have …

Great South Bay, Long Island, New York Summer Phytoplankton Identification & Monitoring Program, Cercom, Molloy University, John Tanacredi Ph.D., Kyle F. Maurelli

CERCOM Reports

Phytoplankton Collection Methodologies: 80 micron Plankton Tow Net with sample bottle attachment

Phytoplankton Protocol: 1.Gather Samples 2.Make one slide per sample 3.View slides using microscope connected with computer 4. Record findings using “ Row # “ and “ Column letter “ 5. Record using “ Tallies “ per species found within sample 6. Capture anything interesting “ Take Picture “ 7.Duplicate pictures taken 8.Make sure measurement of species found is taken 9. Email Jennifer Maucher at [email protected] , include pictures, questions and names of the species you “guess” you found.

Long Island Horseshoe Crab Network Annual Inventory Report, Cercom, Molloy University, John Tanacredi Ph.D., Kyle F. Maurelli

CERCOM Reports

CERCOM conducts monitoring of 111 beach locations spanning from Brooklyn to Montauk during the optimal breeding season of Limulus polyphemus. These surveys span approximately 15 weeks, commencing in May and concluding in August. Each beach location is meticulously marked with GPS coordinates to ensure consistent annual revisitation. Participation in these surveys necessitates attendance at an HSC Survey training orientation, led by Mr. Key Maurelli, CERCOM's research assistant.

Reversing The Irreversible: Mitigating Legal Risks Of Blockchain-Based Data Breach Through Corporate Governance, Katayoon Beshkardana

UC Law Science and Technology Journal

The European General Data Protection Regulation (GDPR) embodies a set of enforceable data subject rights, data controller and processor obligations, and compliance requirements. The GDPR outreach is extraterritorial and impacts US blockchain-based businesses that collect and process personal data of individuals from the EU. Given the ambiguities of the law itself surrounding what is considered as personal data on blockchain, and who data controllers and processors are, this research examines the corporate governance response to the GDPR as a bottom-up solution for compliance. To secure the sustainability of the business models based on blockchain solutions there is an immediate need …

Strategies For Mitigating U.S. Banks’ Risks From Exposure To Derivatives And The Underlying Assets, Othman Abdelmoumen

Walden Dissertations and Doctoral Studies

Many banks’ executives lacked strategies to mitigate the risk of default on subprime mortgages and their linked derivatives to prevent bank insolvency. This led to severe financial losses and insolvency of many banks in 2008-2009. Grounded in the corporate governance agency problem and stewardship theories, the purpose of this qualitative multiple case study was to explore (CG) strategies some bank executives implemented to mitigate the risk of default of subprime mortgages and their linked derivatives to prevent bank insolvency. The participants were four bank executives who worked for federally insured banks in Colorado. Data were collected from semi-structured interviews and …

The Perceptions Of Teachers And Administrators Regarding The Influences Contributing To The High Dropout Rates Of English Language Learners, Vimbainashe Chanakira

Walden Dissertations and Doctoral Studies

There is a high dropout rate of English language learners (ELLs) compared to non-ELLs at the school under study. Guided by Bass and Burns’s transformational leadership conceptual framework, this qualitative study aimed to examine the perceptions of administrators and teachers regarding the influences contributing to the high dropout rate of ELLs. Two research questions were employed to investigate the perceptions of administrators and teachers regarding the underlying reasons for the elevated dropout rate of ELLs at the study site school as well as examine what administrators and teachers believe causes the high dropout rates of ELLs at the high school …

Perceptions Of Science Teachers At Title I Middle Schools Tasked To Integrate Digital Interactive Textbooks, April C. Carpenter

Walden Dissertations and Doctoral Studies

In the K-12 classrooms, science teachers are increasingly using digital interactive textbooks to improve instruction. However, limited research exists on the Title I science educators’ experiences with digital interactive texts in Title I middle schools. The purpose of this qualitative study was to explore the perceptions of these Title I science teachers in middle schools tasked with integrating digital interactive textbooks. This study was guided through the lens of Fuller’s stages of concern, a component of the Concerns Based Adoption Model (CBAM). Adopting basic qualitative methodology, purposeful sampling was employed to recruit nine Title I middle school science teachers through …

Workplace Bullying On Human Resources Management Performance In Correctional Facilities, Oliver Onyeka Ehiahuruike

Walden Dissertations and Doctoral Studies

AbstractWorkplace bullying, as part of a hostile work environment, impacts human resources management (HRM) work outcome metrics, employees' attitudes toward their job, organization, and behavioral intentions that collectively affect organizational goals. Addressed in this study are the problems of workplace bullying of corrections employees, which negatively affect HRM outcome measures of turnover intention, organizational commitment, and employee job satisfaction. The purpose of this quantitative correlational research study was to determine the relationship between workplace bullying and turnover intention, organizational commitment, and job satisfaction among corrections employees in Texas. Homans's social exchange and Bourdieu's social capital theories were used in this …

Kindergarten Through Second Grade Teachers’ Collaboration On Reading Instruction Through Virtual Communities Of Practice, Nakaydria Johnson

Walden Dissertations and Doctoral Studies

Kindergarten through second grade (K–2) teachers have different experiences with support when teaching beginning reading. However, there is a problem with K–2 teachers having access to virtual collaboration to support beginning reading instruction. The purpose of this qualitative study was to understand the experiences and perceptions of K–2 teachers collaborating virtually on Google Platforms to support beginning reading instruction within a community of practice (CoP). The research questions were used to understand the interaction and accountability of K–2 teachers collaborating within a CoP. The conceptual framework was constructed from elements of CoPs and the social theory of learning because of …

Strategies To Increase Emergency Department Patient Flow, Judith Faith Jones

Walden Dissertations and Doctoral Studies

AbstractOvercrowding in emergency departments (EDs) is a systemic issue, resulting in inefficiencies affecting patient care quality. Hospital leaders struggle with reducing bottlenecks in EDs and providing a better patient care experience. Grounded in the general systems theory, the purpose of this qualitative single case study was to explore strategies used to reduce inefficiencies in EDs. The participants included five directors, administrators, and clinical managers from a hospital ED in Idaho Falls, Idaho, who successfully used strategies to reduce inefficiencies in EDs. Data were analyzed from semistructured interviews and a review of organization documents and artifacts following Yin’s five-step data analysis …

Integrating The Pedagogy Of United States’ Fourth-Grade Math Teachers With International Approaches, Dennis Francis Tierney

Walden Dissertations and Doctoral Studies

Standardized testing results in fourth-grade math have shown that students in the United States continually score below students in many other nations, despite funding education at levels well above the global average. The problem addressed in this study was that fourth-grade math students in the United States were not performing as well on standardized tests as students of other nations and international cities. Guided by Vygotsky’s social learning theory, the purpose of this qualitative, exploratory case study was to investigate the perceptions of teachers from U.S. and international settings about different approaches to effective fourth-grade math instruction, inherent obstacles to …

Understanding U.S. Customers' Intention To Adopt Robo-Advisor Technology, Deborah Wall

Walden Dissertations and Doctoral Studies

Finance and information technology scholars wrote that there is a literature gap on what factors drive investors in Western financial markets to use a Robo-advisor to manage their investments. The purpose of this qualitative, single case study with embedded units is to understand the adoption intentions of retail investors in U.S. markets to use a Robo-advisor instead of a human advisor. A single case study design addressed the literature gap, and qualitative data from seven semi=structured interviews, reflective field notes, and archival data were triangulated to answer the research question. This study was grounded in a theoretical framework that includes …

Strategies To Increase Competitive Advantage In The Automotive Manufacturing Supply Chain, Amber Willis

Walden Dissertations and Doctoral Studies

Some automotive manufacturing supply chain leaders lack strategies that are needed to implement information technology (IT) systems. Business leaders are concerned with implementing IT systems to achieve and maintain a competitive advantage. Grounded in the resource-based view theory (RBV), the purpose of this qualitative single case study was to explore information system strategies used by leaders in the automotive manufacturing supply chain to achieve competitive advantage. Participants were five leaders of an automotive manufacturing supply chain organization who implemented IT systems. Data were collected through semistructured interviews and a review of organization project documents. Through thematic analysis, five themes were …

Elementary Teacher Perspectives Of Training, Support, And Resources For Implementing Culturally Responsive Strategies, Amber Nicole Block

Walden Dissertations and Doctoral Studies

The problem addressed in this study was that elementary teachers in a culturally and racially diverse school district in the Midwest did not have adequate training, support, and resources to implement culturally responsive teaching strategies. The purpose of this qualitative study was to explore teachers’ perspectives on their current needs for training, support, and resources to effectively implement culturally responsive teaching strategies. This study was grounded in the conceptual framework of culturally responsive teaching. Data were collected from a purposeful sample of 11 elementary teachers in the study district through semistructured interviews. The thematic analysis of the data revealed that …

Parents’ And Teachers’ Perspectives On Quality Communication In A Head Start Program, Danielle Racquel Bryant-Mathurin

Walden Dissertations and Doctoral Studies

AbstractResearchers have suggested that active communication between teachers and parents is positively associated with student success in school, specifically in terms of student attendance, performance, and behavior. The problem that inspired this basic qualitative study was the quality of parent-teacher communication in Head Start programs that serve low socioeconomic status (SES) students. The purpose of this basic qualitative study was to examine the quality of parent-teacher communication in a Head Start program that serves low SES students in the northeastern United States and explore how quality of parent-teacher communication might be improved. Ecological systems theory and the communication component of …

The Relationship Between Perceived Occupational Stress, Gender, Education, And Job Skill Level, Rumena Hm Kabir

Walden Dissertations and Doctoral Studies

AbstractOccupational stress is a common problem among workers, and it may have implications for productivity, job satisfaction, and employee wellness. The purpose of this study was to explore different skill levels related to perceived occupational stress and whether gender and education influence it. Publicly available secondary data for this study came from the Public Library of Science at-risk and intervention thresholds of occupational stress using a Perceived Stress Scale 14 survey from June 2017. The 500 participants in the secondary data were a random sample of workers from five occupational health centers recruited during annual work medical examinations. Findings indicated …

Effect Of Single-Gender Education On Girls' Success In Math, Joseph Moody

Walden Dissertations and Doctoral Studies

Prior research suggested that all students were not treated equally in the educational setting and that boys perform better than girls on standardized tests. The purpose of this quantitative study was to examine how class composition affected performance on the math section of the Educational Records Bureau (ERB) test and Preliminary SAT (PSAT) among girls who took single-gender classes and girls who remained in coed math classes. Gender essentialism and gender constructivism are important to the study of single-gender education because the foundation of single-gender education is in understanding brain development to design a classroom that allows for differences to …

Strategies To Sustain Small Businesses In The Texas Retail Fashion Beyond 5 Years, Musa Moses Raymond

Walden Dissertations and Doctoral Studies

Owners of small- and medium-sized enterprises (SMEs) confront different hurdles,including difficulties with business registration, a lack of government support, and bureaucracy, thus, may require different strategies to achieve business longevity. The strategies that SME owners use to sustain their businesses past 5 years, a critical benchmark, are not fully understood, the purpose of this study was to explore strategies SME owners use to sustain their business operations beyond 5 years. The conceptual framework consisted of systems theory and the Six Sigma define, measure, analyze, improve, and control model. The participants were five SME senior-level managers at five fashion retailers in …

Understanding Teachers’ Perceptions Of Pedagogy In Teaching Mathematics To English Language Learners, David Suh

Walden Dissertations and Doctoral Studies

The number of socially and linguistically varied students at two local high schools in a southwestern state located in the United States has greatly increased. Since the 2018-2022 school years, English language learners (ELLs) scored low on the state achievement mathematics test scores. The problem was teachers were challenged to support the mathematics achievement of Grade 9-12 ELLs. The purpose of this qualitative study was to explore the perceptions of the teachers’ challenges in supporting the mathematics achievement of Grade 9-12 ELLs. The conceptual framework for this study was Vygotsky’s sociocultural theory, which helped to inform the study in giving …

Relationship Between Strategic Dexterity, Absorptive Capacity, And Competitive Advantage, Ifechide Monyei

Walden Dissertations and Doctoral Studies

Small- and medium-sized enterprise (SME) manufacturing executives and managers are concerned with the rapid technological changes involving artificial intelligence (AI), machine learning, and big data. To compete in the global landscape, effectively managing digital and artificial intelligence changes among SME manufacturing executives and managers is critical for leaders to compete in 2023 and beyond. Grounded in the dynamic capabilities view theory, the purpose of this quantitative correlation study was to examine the relationship between strategic dexterity, absorptive capacity, and competitive advantage. The participants were 66 executives and managers of SME manufacturing organizations who use big data and analytics daily and …

A Methodology For Statistical Mean Wave Climate Regime Characterisation In Oceanic Islands: The Case Of The Southern Coast Of Tenerife, Emilio Megías, Manuel García-Román

Journal of Marine Science and Technology–Taiwan

Oceanic islands of volcanic origin tend to have peculiar characteristics, such as: exposure to many wave directions; grouping in archipelagos; steep coastal slopes; and small coastal shelves. All these features require certain considerations in wave climate studies. These types of studies, when wave spectra are not available and have to be performed with parametric data, can be unreliable without an adequate systematic treatment. In this work we propose a methodology consisting of pre-classification according to the peak period and subsequent separation into different sectors according to the geographical fetch. The island of Tenerife is the case study, and in particular …

Strengthening Undergraduates’ Appreciation Of Engineering Ethics Through A Simulated Stakeholder Meeting On Offshore Wind Energy Development, Maija A. Benitz

Engineering, Computing & Construction Management Faculty Publications

The need for deepening students’ appreciation for the importance of engineering ethics remains ever present. However, accomplishing this learning outcome can be challenging, as the principles often come across as abstract and distant to many undergraduates. To combat these challenges, a group-based assignment and corresponding in-class role-playing activity were developed for an upper-level ocean engineering elective course, based on a local case study about offshore wind energy development. The new pedagogical approach aims to present engineering ethics in a more tangible and relatable way by requiring students to role-play a real-world scenario from their own university’s backyard. Students worked on …

Longitudinal Assessment Of Multimorbidity Medication Patterns Among Smokers In The Copdgene Cohort, Yisha Li, Sarah J. Schmiege, Heather Anderson, Nicole E. Richmond, Kendra A. Young, John E. Hokanson, Stephen I. Rennard, Tessa L. Crume, Erin Austin, Katherine A. Pratte, Rebecca Conway, Gregory L. Kinney

Journal Articles: Pulmonary & Critical Care Med

Background and objectives: Chronic obstructive pulmonary disease (COPD) is usually comorbid with other chronic diseases. We aimed to assess the multimorbidity medication patterns and explore if the patterns are similar for phase 1 (P1) and 5-year follow-up phase 2 (P2) in the COPDGene cohort. Materials and Methods: A total of 5564 out of 10,198 smokers from the COPDGene cohort who completed 2 visits, P1 and P2 visits, with complete medication use history were included in the study. We conducted latent class analysis (LCA) among the 27 categories of chronic disease medications, excluding COPD treatments and cancer medications at P1 and …

Evaluation Of A Math And Medication Administration Proficiency Program In A Pre-Licensure Nursing Program, Dianne J. Hoekstra

Graduate Research Theses & Dissertations

Calculation of the correct dosages is a key factor for safe patient medication administration. For decades nurse educators have aimed to improve the knowledge and skills of the pre-licensure nursing students for medication administration. In a midwestern pre-licensure nursing school, a program was implemented using a curriculum wide approach for the teaching, remediation, and assessment of the math skills required for safe medication administration; known as the Math and Medication Administration Proficiency (MMAP) program. This dissertation evaluates the MMAP program using a logic model and mixed methods approach. Results indicated improvement in the pre-licensure nursing students’ success with the testing …

2023-2024 Undergraduate Catalog, Harrisburg University

HU Catalogs and Handbooks

No abstract provided.

Measuring Spiritual Well-Being In International Contexts, Rodger K. Bufford, Raymond F. Paloutzian

Faculty Publications - Doctor of Psychology (PsyD) Program

The Spiritual Well-Being Scale (SWBS) is a 20-item measure of self-perceived wellness. Developed in the 1980s, it includes two subscales with 10 items each. Responses are made on a 6-point continuum from Strongly Disagree to Strongly Agree with no neutral point; 9 of the items are negatively worded to minimize response biases. US samples show good internal consistency and test-retest reliability. Content validity was established in construction. Expected correlations with religion and spirituality indices, social and psychological measures, and physical functioning and demonstration of expected group differences support criterion validity. Factor analysis commonly shows 2 factors corresponding to the religious …