Digital Commons Network^™

Starch, Lipid, And Protein Accumulation In Nutrient-Stressed Microalgal Cells Studied Using Fourier Transform Infrared Microscopy, Gary Hastings, Jodian Thomas, Keillor Witt, Dimitri Giarikos, Reza Razeghifard

Chemistry and Physics Faculty Articles

Microalgae are fast growing organisms that can be used as feedstock for the production of biofuels. The metabolism of microalgae can be manipulated by exposing them to different environmental conditions for favoring the accumulation of lipids, carbohydrates or proteins. For example, a change in growth conditions can cause the accumulation of large amounts of lipids, representing an opportunity for biodiesel production. Monitoring changes in the composition of microalgal cells is therefore important in assessing new growth conditions. However, at present, most techniques are time consuming, invasive and expensive. Here we have used FTIR microscopy to quantify lipid, protein, and starch …

2018 Nsu Fact Book, Nova Southeastern University

NSU Fact Book

This 26th edition of the Nova Southeastern University Fact Book reflects an expanding body of data and information that provides perspective on the university’s character, growth, and accomplishments.

The 2018 Fact Book includes narrative, numeric, and graphic representation of the university, including history, characteristics, and development of the institution. Data are presented in both tabular and graphic formats to provide pertinent detail, and general trends are highlighted.

Diet Of The Invasive Lionfish Pterois Sp. In Broward County, Florida, Sarah Ann Jasper, J. D. Thomas, David Kerstetter

Marine & Environmental Sciences Faculty Articles

The geographic range of invasive lionfish Pterois sp. currently extends throughout the Greater Caribbean in the western North Atlantic, prompting concerns about the impacts of its predation on local ecosystems. We focused on dietary habits of lionfish in Broward County, Florida, where there is only limited, anecdotal information on the species’ prey selection. Diet was determined using percent number, percent occurrence and percent weight, as well as the composite index of relative abundance (%IRI). A high percent teleost diet was documented during the third quarter (July-September) and a high crustacean diet in the fourth quarter (October-December), but seasonal effects by …

Nsu Ed.S. In Mathematics Education 2018, Nova Southeastern University

Abraham S. Fischler College of Education and School of Criminal Justice College Archive

No abstract provided.

Nsu Florida Abraham S. Fischler College Of Education Graduate Catalog And Student Handbook 2018-2019, Nova Southeastern University

Abraham S. Fischler College of Education and School of Criminal Justice College Archive

No abstract provided.

Elementary Principals' Perceptions Of Conflicts With Teachers In Elementary Schools: A Phenomenological Study, Daryl C. Roselle

Department of Conflict Resolution Studies Theses and Dissertations

The purpose of this phenomenological study was to examine the lived experiences and perceptions of principals in elementary schools regarding conflicts with teachers. In addition, this dissertation focused on four social science theories to analyze the findings of this study including: systems, social constructionism, symbolic interactionism, and functionalism. Through this five chapter dissertation, the researcher examined the lived experiences and elementary principals’ perceptions and 1) explored the root causes of conflicts among teachers and principals, 2) determined the challenges these principals face with teachers, 3) gathered reasons why the phenomenon has been overlooked, 4) examined the power of negative emotions …

Undergraduate Student Catalog 2018-2019, Nova Southeastern University

Undergraduate Programs Course Catalogs

No abstract provided.

Correctional Academic Education: A Qualitative Inquiry Of Quality, Value, And Effectiveness, Michelle Currier

School of Criminal Justice Theses and Dissertations

This study attempted to capture and describe the lived experiences of correctional academic teachers who provide educational services in facilities in the northeastern region of the United States through qualitative phenomenological inquiry. This study strove to provide a deeper understanding of correctional teachers’ perceptions concerning the mission, value, efficacy, and importance of the work that they perform, as well as the resulting approaches they take, in their academic classrooms. Through phenomenological data analysis, the study assessed teachers’ perceptions of the rehabilitative ideal, as well as the role of correctional education program offerings within a rehabilitative framework.

Standardizing Instructional Definition And Content Supporting Information Security Compliance Requirements, Theresa Curran

CCAC Theses and Dissertations

Information security (IS)-related risks affect global public and private organizations on a daily basis. These risks may be introduced through technical or human-based activities, and can include fraud, hacking, malware, insider abuse, physical loss, mobile device misconfiguration or unintended disclosure. Numerous and diverse regulatory and contractual compliance requirements have been mandated to assist organizations proactively prevent these types of risks. Two constants are noted in these requirements. The first constant is requiring organizations to disseminate security policies addressing risk management through secure behavior. The second constant is communicating policies through IS awareness, training and education (ISATE) programs. Compliance requirements direct …

Wireless Sensor Network Clustering With Machine Learning, Larry Townsend

CCAC Theses and Dissertations

Wireless sensor networks (WSNs) are useful in situations where a low-cost network needs to be set up quickly and no fixed network infrastructure exists. Typical applications are for military exercises and emergency rescue operations. Due to the nature of a wireless network, there is no fixed routing or intrusion detection and these tasks must be done by the individual network nodes. The nodes of a WSN are mobile devices and rely on battery power to function. Due the limited power resources available to the devices and the tasks each node must perform, methods to decrease the overall power consumption of …

Assessing The Role Of Critical Value Factors (Cvfs) On Users’ Resistance Of Urban Search And Rescue Robotics, Marion A. Brown

CCAC Theses and Dissertations

Natural and manmade disasters have brought urban search and rescue (USAR) robots to the technology forefront as a means of providing additional support for search and rescue workers. The loss of life among victims and rescue workers necessitates the need for a wider acceptance of this assistive technology. Disasters, such as hurricane Harvey in 2017, hurricane Sandy in 2012, the 2012 United States tornadoes that devastated 17 states, the 2011 Australian floods, the 2011 Japan and 2010 Haiti earthquakes, the 2010 West Virginia coal mine explosions, the 2009 Typhoon caused mudslides in Taiwan, the 2001 Collapse of the World Trade …

Bachelor Of Science In Respiratory Therapy - First-Professional_2018-2019, Nova Southeastern University

Health Professions Divisions Course Catalogs and Course Descriptions

No abstract provided.

Connecting The Arcs Motivational Model To Game Design For Mathematics Learning, Mario J. Toussaint, Victoria Brown

Transformations

Students’ performance in mathematics at all levels of education have not markedly improved for the past few decades. Stakeholders at tertiary institutions have been attempting to remedy this situation by implementing various types of intervention programs designed to increase students’ success in mathematics courses. Technology has been the primary method adopted by many educators to foster student engagement in mathematics. This paper describes an intervention program that uses the ARCS model to develop a serious game intended to increase students’ motivation and engagement in a mathematics course.

Stem Shift Action Plan, Nancy L. Ledbetter

Transformations

That there is an ever-growing need for students to enter STEM fields is no longer news. The need for people to fill STEM related jobs continues to expand (Bybee, 2013). Today’s students are global citizens who will need to collaborate and communicate with people around the world when they enter the workforce. Therefore, it is imperative that they are prepared with problem-solving, critical thinking, and communication skills before they enter secondary school (Myers & Berkowicz, 2015). Knowing that this must be done is the easy part, figuring out how to do it is the challenge. STEM must be incorporated into …

The Effects Of Student Activity Dashboards On Student Participation, Performance, And Persistence, Edwin Hill

CCAC Theses and Dissertations

Researchers have turned their attention to the use of learning analytics and dashboard systems in education. Schools are using knowledge gained in this area to address the issue of persistence to increase graduation rates. While dashboard systems have been developed and are starting to be implemented, it is not yet clear how activity and performance data from dashboards influences student behavior. In addition, much of the research has been focused on instructor-facing dashboards rather than student-facing dashboards. The current study implemented a student-facing dashboard in the learning management system and measured how information on the dashboard may have influenced participation …

Conservation Of Limited Resources: Design Principles For Security And Usability On Mobile Devices, Ann-Marie Horcher

CCAC Theses and Dissertations

Mobile devices have evolved from an accessory to the primary computing device for an increasing portion of the general population. Not only is mobile the primary device, consumers on average have multiple Internet-connected devices. The trend towards mobile has resulted in a shift to “mobile-first” strategies for delivering information and services in business organizations, universities, and government agencies. Though principles for good security design exist, those principles were formulated based upon the traditional workstation configuration instead of the mobile platform. Security design needs to follow the shift to a “mobile-first” emphasis to ensure the usability of the security interface. The …

Beyond Automated Assessment: Building Metacognitive Awareness In Novice Programmers In Cs1, James Prather

CCAC Theses and Dissertations

The primary task of learning to program in introductory computer science courses (CS1) cognitively overloads novices and must be better supported. Several recent studies have attempted to address this problem by understanding the role of metacognitive awareness in novices learning programming. These studies have focused on teaching metacognitive awareness to students by helping them understand the six stages of learning so students can know where they are in the problem-solving process, but these approaches are not scalable. One way to address scalability is to implement features in an automated assessment tool (AAT) that build metacognitive awareness in novice programmers. Currently, …

A Knowledge Management System (Kms) Using A Storytelling-Based Approach To Collect Tacit Knowledge, Nicholas Shaw

CCAC Theses and Dissertations

Since the 1990s, Knowledge Management Systems (KMS) have been largely unsuccessful in the collection of tacit knowledge. The process, whether through direct input by the holder of the tacit knowledge or through an intermediary such as the collection of tacit knowledge through interviews and videos, has not succeeded. Reasons encompass the organizational (such as culture of the organization), the technological (example: poor tools), and the individual (example: knowledge is power, i.e. where experts with rare knowledge results in knowledge hoarding instead of transfer). The purpose of this study was to demonstrate that tacit knowledge could be successfully and consistently collected …

An Investigation Of The Interaction Between Organizational Culture And Knowledge Sharing Through Socialization: A Multi-Level Perspective, Ali Baker

CCAC Theses and Dissertations

Knowledge management (KM) has been determined by many researchers as one of the most important domains within the information systems (IS) field, and knowledge sharing (KS) has been identified as the most vital component of KM. Lack of KS within organizations has been approached from many perspectives. One perspective that has been outlined in recent studies is the organizational culture (OC) perspective, which examines the interaction between OC and KS behaviors. Although research has been conducted on OC and KS, the findings of recent studies have been contradictory. These conflicts were due to the different operationalization of KS. The purpose …

Probabilistic Clustering Ensemble Evaluation For Intrusion Detection, Steven M. Mcelwee

CCAC Theses and Dissertations

Intrusion detection is the practice of examining information from computers and networks to identify cyberattacks. It is an important topic in practice, since the frequency and consequences of cyberattacks continues to increase and affect organizations. It is important for research, since many problems exist for intrusion detection systems. Intrusion detection systems monitor large volumes of data and frequently generate false positives. This results in additional effort for security analysts to review and interpret alerts. After long hours spent reviewing alerts, security analysts become fatigued and make bad decisions. There is currently no approach to intrusion detection that reduces the workload …

Comparing Training Methodologies On Employee’S Cybersecurity Countermeasures Awareness And Skills In Traditional Vs. Socio-Technical Programs, Jodi Goode

CCAC Theses and Dissertations

Organizations, which have established an effective technical layer of security, continue to experience difficulties triggered by cyber threats. Ultimately, the cybersecurity posture of an organization depends on appropriate actions taken by employees whose naive cybersecurity practices have been found to represent 72% to 95% of cybersecurity threats and vulnerabilities to organizations. However, employees cannot be held responsible for cybersecurity practices if they are not provided the education and training to acquire skills, which allow for identification of security threats along with the proper course of action to mitigate such threats. In addition, awareness of the importance of cybersecurity, the responsibility …

Metrics For Aspect Mining Visualization, Gisle J. Jorgensen

CCAC Theses and Dissertations

Aspect oriented programming has over the last decade become the subject of intense research within the domain of software engineering. Aspect mining, which is concerned with identification of cross cutting concerns in legacy software, is an important part of this domain. Aspect refactoring takes the identified cross cutting concerns and converts these into new software constructs called aspects. Software that have been transformed using this process becomes more modularized and easier to comprehend and maintain. The first attempts at mining for aspects were dominated by manual searching and parsing through source code using simple tools. More sophisticated techniques have since …

An Empirical Assessment Of Senior Citizens’ Cybersecurity Awareness, Computer Self-Efficacy, Perceived Risk Of Identity Theft, Attitude, And Motivation To Acquire Cybersecurity Skills, Carlene G. Blackwood-Brown

CCAC Theses and Dissertations

Cyber-attacks on Internet users have caused billions of dollars in losses annually. Cybercriminals launch attacks via threat vectors such as unsecured wireless networks and phishing attacks on Internet users who are usually not aware of such attacks. Senior citizens are one of the most vulnerable groups who are prone to cyber-attacks, and this is largely due to their limited cybersecurity awareness and skills. Within the last decade, there has been a significant increase in Internet usage among senior citizens. It was documented that senior citizens had the greatest rate of increase in Internet usage over all the other age groups …

Novel Alert Visualization: The Development Of A Visual Analytics Prototype For Mitigation Of Malicious Insider Cyber Threats, Karla A. Clarke

CCAC Theses and Dissertations

Cyber insider threat is one of the most difficult risks to mitigate in organizations. However, innovative validated visualizations for cyber analysts to better decipher and react to detected anomalies has not been reported in literature or in industry. Attacks caused by malicious insiders can cause millions of dollars in losses to an organization. Though there have been advances in Intrusion Detection Systems (IDSs) over the last three decades, traditional IDSs do not specialize in anomaly identification caused by insiders. There is also a profuse amount of data being presented to cyber analysts when deciphering big data and reacting to data …

Machine Learning For Exploring State Space Structure In Genetic Regulatory Networks, Rodney H. Thomas

CCAC Theses and Dissertations

Genetic regulatory networks (GRN) offer a useful model for clinical biology. Specifically, such networks capture interactions among genes, proteins, and other metabolic factors. Unfortunately, it is difficult to understand and predict the behavior of networks that are of realistic size and complexity. In this dissertation, behavior refers to the trajectory of a state, through a series of state transitions over time, to an attractor in the network. This project assumes asynchronous Boolean networks, implying that a state may transition to more than one attractor. The goal of this project is to efficiently identify a network's set of attractors and to …

The Impact Of Cost On Feature Selection For Classifiers, Richard Clyde Mccrae

CCAC Theses and Dissertations

Supervised machine learning models are increasingly being used for medical diagnosis. The diagnostic problem is formulated as a binary classification task in which trained classifiers make predictions based on a set of input features. In diagnosis, these features are typically procedures or tests with associated costs. The cost of applying a trained classifier for diagnosis may be estimated as the total cost of obtaining values for the features that serve as inputs for the classifier. Obtaining classifiers based on a low cost set of input features with acceptable classification accuracy is of interest to practitioners and researchers. What makes this …

Assessment Of Factors Influencing Intent-To-Use Big Data Analytics In An Organization: A Survey Study, Wayne Madhlangobe

CCAC Theses and Dissertations

The central question was how the relationship between trust-in-technology and intent-to-use Big Data Analytics in an organization is mediated by both Perceived Risk and Perceived Usefulness. Big Data Analytics is quickly becoming a critically important driver for business success. Many organizations are increasing their Information Technology budgets on Big Data Analytics capabilities. Technology Acceptance Model stands out as a critical theoretical lens primarily due to its assessment approach and predictive explanatory capacity to explain individual behaviors in the adoption of technology. Big Data Analytics use in this study was considered a voluntary act, therefore, well aligned with the Theory of …

A Novel Cooperative Intrusion Detection System For Mobile Ad Hoc Networks, Adam Solomon

CCAC Theses and Dissertations

Mobile ad hoc networks (MANETs) have experienced rapid growth in their use for various military, medical, and commercial scenarios. This is due to their dynamic nature that enables the deployment of such networks, in any target environment, without the need for a pre-existing infrastructure. On the other hand, the unique characteristics of MANETs, such as the lack of central networking points, limited wireless range, and constrained resources, have made the quest for securing such networks a challenging task. A large number of studies have focused on intrusion detection systems (IDSs) as a solid line of defense against various attacks targeting …

Assistive Technology Guidelines For Higher Education Disability Support Staff, Brenda Delee

CCAC Theses and Dissertations

With the changing laws and effective integration of assistive technology into the classroom environment, students can have the provision of multiple means to complete their work with greater independence. In post secondary education, any student who discloses a sensory, cognitive, or physical disability is eligible to request and receive assistive technology and other services. When used correctly, assistive technology can help students with reading, writing, math, and communication skills. With a possible influx of students, disability support staff must be prepared and willing to meet the needs and address issues relating to students with disabilities. If their needs are not …

Computer-Supported Collaborative Learning Using Augmented And Virtual Reality In Museum Education, Ronald Punako Jr.

CCAC Theses and Dissertations

Recent advancements in the cost, availability, and capability of augmented reality (AR) and virtual reality (VR) devices and software are spurring their mass distribution to the public. This fundamental shift in the use of AR and VR predominantly from military and academic research laboratories to the public presents new opportunities and challenges for the design of instructional technology. While studies of AR and VR have been conducted to inform the design of individual instructional products, few studies have focused on computer-supported collaborative learning (CSCL) products in which AR and VR learners work together toward shared learning goals.

The museum education …