Digital Commons Network^™

A Universal Cybersecurity Competency Framework For Organizational Users, Patricia A. Baker

CCAC Theses and Dissertations

The global reliance on the Internet to facilitate organizational operations necessitates further investments in organizational information security. Such investments hold the potential for protecting information assets from cybercriminals. To assist organizations with their information security, The National Initiative for Cybersecurity Education (NICE) Cybersecurity Workforce Framework (NCWF) was created. The framework referenced the cybersecurity work, knowledge, and skills required to competently complete the tasks that strengthen their information security. Organizational users’ limited cybersecurity competency contributes to the financial and information losses suffered by organizations year after year. While most organizational users may be able to respond positively to a cybersecurity threat, …

Factors Affecting Customers’ Decision To Share Personal Data With Mobile Operators, Ammar Ali Qaffaf

CCAC Theses and Dissertations

Companies that personalize their services based on users’ specific needs have increased sales and customer satisfaction. Personalization requires analyzing the user’s behavior and correlating the action with other pieces of information. The information available for cellular service providers has grown substantially as connectivity becomes ubiquitous. Customers are unknowingly sharing their locations, habits, activities, and preferences in real-time with their service providers. Although cellular service providers state that they share personal data with external entities in their publicly available privacy policies, users have limited control over who can access their personal information. Users have no, or suboptimal, control to manage their …

Modified Structured Domain Randomization In A Synthetic Environment For Learning Algorithms, Bryan L. Croft

CCAC Theses and Dissertations

Deep Reinforcement Learning (DRL) has the capability to solve many complex tasks in robotics, self-driving cars, smart grids, finance, healthcare, and intelligent autonomous systems. During training, DRL agents interact freely with the environment to arrive at an inference model. Under real-world conditions this training creates difficulties of safety, cost, and time considerations. Training in synthetic environments helps overcome these difficulties, however, this only approximates real-world conditions resulting in a ‘reality gap’. The synthetic training of agents has proven advantageous but requires methods to bridge this reality gap. This work addressed this through a methodology which supports agent learning. A framework …

Information Systems Security Countermeasures: An Assessment Of Older Workers In Indonesian Small And Medium-Sized Businesses, Hari Samudra Roosman

CCAC Theses and Dissertations

Information Systems (IS) misuse can result in cyberattacks such as denial-of-service, phishing, malware, and business email compromise. The study of factors that contribute to the misuse of IS resources is well-documented and empirical research has supported the value of approaches that can be used to deter IS misuse among employees; however, age and cultural nuances exist. Research focusing on older workers and how they can help to deter IS misuse among employees and support cybersecurity countermeasures within developing countries is in its nascent stages. The goal of this study was two-fold. The first goal was to assess what older workers …

Experimental Study To Assess The Role Of Environment And Device Type On The Success Of Social Engineering Attacks: The Case Of Judgment Errors, Tommy Pollock

CCAC Theses and Dissertations

Phishing continues to be an invasive threat to computer and mobile device users. Cybercriminals continuously develop new phishing schemes using e-mail and malicious search engine links to gather the personal information of unsuspecting users. This information is used for financial gains through identity theft schemes or draining victims' financial accounts. Many users of varying demographic backgrounds fall victim to phishing schemes at one time or another. Users are often distracted and fail to process the phishing attempts fully, then unknowingly fall victim to the scam until much later. Users operating mobile phones and computers are likely to make judgment errors …

Impact Of Knowledge Management Processes Upon Job Satisfaction And Job Performance, George Reid Cooper

CCAC Theses and Dissertations

While we might know anecdotally that the implementation of knowledge management in an organization improves job satisfaction and job performance, there are limited empirical studies that assess this assumption. There have been studies done in this area but the results vary in terms of which knowledge management processes have an impact upon job satisfaction and which do not. Similarly, many studies make assumptions that job satisfaction leads to improved job performance without testing for that variable. The goal of this dissertation is to assess whether the knowledge management processes have a positive impact upon job satisfaction and job performance and …

An Approach For Efficient Robust Adversarial Training In Deep Neural Networks, Cesar Zalzalah

CCAC Theses and Dissertations

With advancements in computer hardware, deep neural networks outperform other methods for many applications, such as image and voice recognition. Unfortunately, existing deep neural networks are fragile at test time against adversarial examples, which are intentionally calculated perturbations that cause a neural network to misclassify the correct input label. This vulnerability makes the use of neural networks risky, especially in critical applications. Extensive prior research studies to build a robust neural network using diverse approaches have been proposed to tackle this problem, including customized models and their parameters, input pre-processing to detect and remove adversarial perturbations, blocking the adversarial input, …

An Empirical Investigation Of The Evidence Recovery Process In Digital Forensics, Kevin Parviz

CCAC Theses and Dissertations

The widespread use of the digital media in committing crimes, and the steady increase of their storage capacity has created backlogs at digital forensic labs. The problem is exacerbated especially in high profile crimes. In many such cases the judicial proceedings mandate full analysis of the digital media, when doing so is rarely accomplished or practical. Prior studies have proposed different phases for forensic analysis, to lessen the backlog issues. However, these phases are not distinctly differentiated, and some proposed solutions may not be practical. This study utilized several past police forensic analyses. Each case was chosen for having five …

Exploring The Existing And Unknown Side Effects Of Privacy Preserving Data Mining Algorithms, Hima Bindu Sadashiva Reddy

CCAC Theses and Dissertations

The data mining sanitization process involves converting the data by masking the sensitive data and then releasing it to public domain. During the sanitization process, side effects such as hiding failure, missing cost and artificial cost of the data were observed. Privacy Preserving Data Mining (PPDM) algorithms were developed for the sanitization process to overcome information loss and yet maintain data integrity. While these PPDM algorithms did provide benefits for privacy preservation, they also made sure to solve the side effects that occurred during the sanitization process. Many PPDM algorithms were developed to reduce these side effects. There are several …

Diagnosis Of Errors In Stalled Inter-Organizational Workflow Processes, Mudassar Habib Ghazi

CCAC Theses and Dissertations

Fault-tolerant inter-organizational workflow processes help participant organizations efficiently complete their business activities and operations without extended delays. The stalling of inter-organizational workflow processes is a common hurdle that causes organizations immense losses and operational difficulties. The complexity of software requirements, incapability of workflow systems to properly handle exceptions, and inadequate process modeling are the leading causes of errors in the workflow processes.

The dissertation effort is essentially about diagnosing errors in stalled inter-organizational workflow processes. The goals and objectives of this dissertation were achieved by designing a fault-tolerant software architecture of workflow system’s components/modules (i.e., workflow process designer, workflow engine, …

A Validity-Based Approach For Feature Selection In Intrusion Detection Systems, Eljilani Hmouda

CCAC Theses and Dissertations

Intrusion detection systems are tools that detect and remedy the presence of malicious activities. Intrusion detection systems face many challenges in terms of accurate analysis and evaluation. One such challenge is the involvement of many features during analysis, which leads to high data volume and ultimately excessive computational overhead. This research surrounds the development of a new intrusion detection system by employing an entropy-based measure called v-measure to select significant features and reduce dimensionality. After the development of the intrusion detection system, this feature reduction technique was tested on public datasets by applying machine learning classifiers such as Decision Tree, …

Graduate Catalog And Student Handbook 2022-2023, Nova Southeastern University

Abraham S. Fischler College of Education and School of Criminal Justice Graduate Course Catalogs

No abstract provided.

2022-2023 Halmos College Of Arts And Sciences Graduate Program Catalog, Nova Southeastern University

Halmos College of Arts and Sciences Course Catalogs

No abstract provided.

Discussing Whether Congress Should Implement A National Uniform Non-Competition Agreement And Why Non-Competition Agreements Discourage Dynamism Particularly In Florida, Tiffany Guerrero

Nova Law Review

No abstract provided.

A Holistic Approach To Hurricane Preparedness, Edwina A. Ward

Department of Conflict Resolution Studies Theses and Dissertations

Hurricanes are billion-dollar disasters, and current climate models suggest that their frequency and strength will only get worse because of global warming. Gulf Coast residents living in Florida, Louisiana, Mississippi, Alabama, and Texas worry about hurricane season annually and the goal of this dissertation was to measure their hurricane preparedness. This study surveyed 971 participants who have experienced hurricanes. Building on the theoretical foundations of quantitative survey research, the researcher conducted the study with the goal of answering the following questions: How do families in The Gulf Coast prepare for hurricanes, and how do local authorities prepare for the holistic …

Nsu College Of Psychology Graduate Student Catalog 2022–2023, Nova Southeastern University

College of Psychological Services / College of Psychology Postgraduate Student and Course Catalogs

No abstract provided.

Social Media Analytics And Information Privacy Decisions: Impact Of User Intimate Knowledge And Co-Ownership Perceptions, Bradley Alukwe Wangia

CCAC Theses and Dissertations

Social media analytics has been recognized as a distinct research field in the analytics subdomain that is developed by processing social media content to generate important business knowledge. Understanding the factors that influence privacy decisions around its use is important as it is often perceived to be opaque and mismanaged. Social media users have been reported to have low intimate knowledge and co-ownership perception of social media analytics and its information privacy decisions. This deficiency leads them to perceive privacy violations if firms make privacy decisions that conflict with their expectations. Such perceived privacy violations often lead to business disruptions …

An Analysis Of Florida Educators' Perceptions Of The School Superintendency, Qualifications, Leadership Skills, Longevity, And Student Achievement: A Quantitative Study, Natalie Whitco

Theses and Dissertations

High turnover in the role of school superintendent signaled functional disruption, decreased morale and impaired student achievement. The principal researcher sought to explain perceptions among professional Florida K-12 public school educators about key factors related to the role of school superintendent, necessary qualifications, important leadership skills, longevity and its impact on student achievement.

The principal researcher disseminated a 10-question online self-administered survey she developed for the study to a sample of 199 professional Florida K-12 public school educators. Independent demographic variables among sample participants included: gender, current job, highest level of completed education and years of experience as an educator. …

The Implementation Of Conversation-Help-Activity-Movement-Participation-Success Procedures To Improve Behavior And Academic Performance, Henreta Jarrett

Theses and Dissertations

This dissertation was designed to examine the fidelity level of implementation of Conversation-Help-Activity-Movement-Participation-Success (CHAMPS) classroom management strategies designed to reduce students’ behavior problems and boost academic performance at a large Title I elementary school in the southeastern United States. The participants included 10 teachers with experience teaching Grades 3 to 5 who had 3 years of experience implementing the CHAMPS classroom-management plan.

The researcher implemented bracketing, intuition, open-ended coding, and Axial coding to examine the implementation of the CHAMPS classroom-management plan in reducing behavior problems and boosting academic performance. The evaluation intended to address the central research question: How is …

Reconceptualizing Mathematical Word Problems To Reflect Social Justice Principles And Culturally Relevant Teaching, Michelle Aryam Jackson

Theses and Dissertations

As currently developed and written, mathematical word problems lack cultural relevance for an increasingly culturally diverse population in elementary schools in the United States. The design and context of mathematical word problems promote the norms, values, and beliefs of the dominant culture while potentially negatively influencing students from non-dominant culture engagement and achievement in mathematics.

The purpose of this sequential, explanatory mixed-methods study was threefold: to (a)examine in-service teachers’ preexisting beliefs about the relevance of social justice and culturally relevant teaching related to their mathematics instructional practices before receiving a synchronous online professional development program; (b) assess the impact of …

Examining Motivators That Influenced African American And Latinx Students To Degree Completion Of A Doctoral Program, Travis L. Stokes

Theses and Dissertations

This applied dissertation was designed to provide an investigation of the motivators that influence African American and Latinx students to complete a doctoral program. There are numerous studies that show data on low enrollment and retention of this population. Further, there is ample evidence of attrition, but there is a need to hear their voices share the experiences of successful doctoral graduates from this population.

The researcher posited systemic racism in education caused low enrollment and graduation rates among African American and Latinx students. Then, an interview protocol was developed to elicit responses regarding what caused the persistence to complete …

A Comparative Evaluation Of The Effects Of Social Skills Group Training And Computer- Based Social Skills Training, Indira Hightower

Theses and Dissertations

This applied dissertation was designed to evaluate the effects of social skills training programs as a method to improve social skills in children diagnosed with autism spectrum disorder. The study sought to advance the social skills training options for children with autism spectrum disorder by comparing various evidence-based social skills training programs in hope to provide meaningful, significant, and sustainable social-emotional changes that are explicitly taught and later generalized across individuals, settings, and environments. The researcher specifically evaluated the effects of social skills group training and computer-based social skills training among the three study participants with autism spectrum disorder.

The …

Teacher Perceptions Of Classroom Management Programs To Improve Whole-School Measures Of Attendance, Disruptive Classroom Behaviors, And Academic Outcomes, Charles E. Natt, Jr

Theses and Dissertations

This qualitative case study explored how the implementation of Capturing Kids’ Hearts (CKH) and Multi-Tiered System of Supports (MTSS) classroom management programs when implemented together affected students and teachers of a Louisiana K-12 school compared with using the Positive Behavior Interventions and Supports (PBIS) program alone. Teachers at the school who had used the PBIS alone and then also used the newly implanted CKH and MTSS programs participated in in-depth interviews to examine the practical effectiveness of both program implementations upon students and classroom learning effectiveness. Teacher perceptions were also compared with ex post facto data for the school from …

Embracing A Culture Of Stem Education: A Qualitative Research Study, Katie L. Laux

The Qualitative Report

The purpose of this study was to explore teacher and administrator perspectives on STEM education and how they demonstrate characteristics of STEM education. The five schools in this study are part of a greater network of elementary, middle, and high schools that collaborate and learn together. Data were collected through interviews with teachers and administrators and observational notes from meetings and other events. Interviews were recorded and transcribed and then coded to look for themes in the data. Findings indicate teachers and administrators view a supportive leadership, teacher buy in, and comfort in teaching STEM as essential to the implementation …

Teaching And Assessing College Stem Courses Online During Covid-19: Evidence-Based Strategies And Recommendations, Santanu De, Georgina Arguello

FDLA Journal

Since the devastating COVID-19 pandemic, most schools, colleges, and universities worldwide underwent a paradigm shift by transitioning to digital teaching and learning modalities. This phenomenon was essential to mitigate the contagion; however, the academic institutions needed to quickly come up with ways to ensure that the quality and rigor of education were maintained, especially the active and experiential learning required by undergraduate and graduate courses in science, technology, engineering, and mathematics (STEM). This paper highlights key approaches reported or proposed to effectively conduct college-level, in-person STEM courses online owing to the pandemic. These would range from synchronous versus asynchronous pedagogies …

Teaching And Learning During Covid-19 Pandemic: A Qualitative Study On Elementary School Teachers In Indonesia, Kartika Yulianti, Amirul Mukminin

The Qualitative Report

In this study, we explored how teachers in elementary schools in urban and rural areas in Indonesia experienced teaching and learning during school closure or learning from home (LFH) period and examined the barriers that hindered the teaching and learning process in both contexts. We collected data through demographic profiles and semi-structured in-depth interviews with 18 teachers. We organized our analysis around their perspectives on teaching and learning during COVID-19 pandemic that they encountered emerged. Overall, an analysis of the text revealed that major themes related to the critical issues of (1) teaching and learning activities during school closure, (2) …

Responses Of Benthic Calcifying Algae To Ocean Acidification Differ Between Laboratory And Field Settings, Heather N. Page, Keisha D. Bahr, Tyler Cyronak, Elizabeth B. Jewett, Maggie D. Johnson, Sophie J. Mccoy

Marine & Environmental Sciences Faculty Articles

Accurately predicting the effects of ocean and coastal acidification on marine ecosystems requires understanding how responses scale from laboratory experiments to the natural world. Using benthic calcifying macroalgae as a model system, we performed a semi-quantitative synthesis to compare directional responses between laboratory experiments and field studies. Variability in ecological, spatial, and temporal scales across studies, and the disparity in the number of responses documented in laboratory and field settings, make direct comparisons difficult. Despite these differences, some responses, including community-level measurements, were consistent across laboratory and field studies. However, there were also mismatches in the directionality of many responses …

Element Contamination In Port Everglades – Preparing For Ecological Impacts, Laura White

All HCAS Student Capstones, Theses, and Dissertations

Port dredging is of economic importance worldwide but its impacts to the marine environment through the remobilization of elemental contaminants are not well understood. A massive deepening and widening of Port Everglades, Florida, will begin in 2023. Contaminated sediment disturbed during the dredging process could be released and prove to be harmful to three coral reef tracks located beginning 1.5 miles away from the port. This study focused on identifying and quantifying 14 different trace elements: arsenic (As), cadmium (Cd), cobalt (Co), chromium (Cr), copper (Cu), mercury (Hg), lead (Pb), manganese (Mn), molybdenum (Mo), nickel (Ni), selenium (Se), tin (Sn), …

Applying Integrative Systematics To Long-Standing Species Boundary Questions In The Zoanthidea, Annika Markovich

All HCAS Student Capstones, Theses, and Dissertations

The study of systematics has been around for over 200 years. Some recent systematic studies have shifted to the idea of genetic barcoding for identification and classification. This shift is notably present in the cnidarian order Zoanthidea. Systematists have employed genetic barcoding exclusively for the classification of these animals resulting in taxonomic uncertainty. A prominent Mediterranean species complex (Parazoanthus axinellae) is at the center of these taxonomic issues. Recently two color-morpho-types: “slender” yellow and “stocky” orange have been used to differentiate modern P. axinellae specimens, advancing the uncertainty associated with this complex. This lack of taxonomic identity becomes …

Empowerment Of Farmers: The Role Of Actor And The Persistence Of Coffee Farmers In Rural Pattongko, Indonesia, A. Hasdiansyah, Sugito Sugito, Yoyon Suryono

The Qualitative Report

Many farmers' empowerment has failed because the process is rigid, instructive, and uses too many techniques that are not following the local conditions of the community. Therefore, the empowerment process must be improved to be able to make farmers empowered and independent. For this reason, it is necessary to explore how the learning process and the involvement of actor in the empowerment process are needed. The subjects of this study consisted of eight farmers and one empowerment actor. The method used is qualitative through in-depth interviews, observation, and document review. All data were transcribed, organized, then analyzed to produce conclusions. …