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To Be, Or Not To Be (Like My Sibling), That Is The Question: Examining Modeling And Differentiation Behaviors Among Siblings In Organized Youth Sport, Keith Vakafutu Osai

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Sibling relationships are typically the most enduring relationship in the family unit. A large body of research documents how sibling relationships occur in the context of the immediate family, how they impact behaviors such as risk-taking, how different cultures view siblings, and how similarities and differences among siblings can be attributed to genetics as well as shared and non-shared experiences. However, one relatively common family context in which sibling dynamics are less understood is organized youth sport. The present dissertation was designed to address multiplegaps in the present literature. This dissertation is comprised of two complementary studies. Study 1, guided …

Rediscovering The Interpersonal: Models Of Networked Communication In New Media Performance, Alicia Champlin

Electronic Theses and Dissertations

This paper examines the themes of human perception and participation within the contemporary paradigm and relates the hallmarks of the major paradigm shift which occurred in the mid-20th century from a structural view of the world to a systems view. In this context, the author’s creative practice is described, outlining a methodology for working with the communication networks and interpersonal feedback loops that help to define our relationships to each other and to media since that paradigm shift. This research is framed within a larger field of inquiry into the impact of contemporary New Media Art as we experience it. …

Design And Characterization Of An Affordable Laser Communication System, Andrea Tellez

Theses and Dissertations

Over the last decades, an exponential growth in communication demand has been observed. Radio Frequency (RF) band has been one of the most used bandwidths for data transmission in the world. Given the influence and the continuous growth of communication technology, the RF spectrum is overpopulated. More efficient systems are necessary to meet the communication needs of this generation. A change to optical bandwidth is the most practical alternative to deal with the congestion of radio frequency.

The aim of this thesis is to present the features of Free Space Optical links with off-the-shelf components. A description of how these …

Building Teacher Self-Efficacy Through Administrator Feedback, Limary Trujillo Gutierrez

Dissertations

The study explored current site principals’ feedback practices that support or hinder teachers’ implementation of feedback, and identified site principal’s practices that encourage or interfere with teacher’s self-efficacy. Using qualitative interviews with site principals and teachers from two different districts and three different school sites, the study analyzed two major leadership practices: (a) an administrator’s ability to communicate effectively with teachers before, during, and after the feedback process, and (b) an administrator’s use of emotional intelligence when providing feedback. Data were separated into four feedback types (positive feedback, negative feedback, feedback and feedforward) and emotional intelligence traits (self-regulation, self-aware, empathy, …

Generating Revenue At Airports In The Southeastern Coastal Region Of North Carolina, John Daniel Strong

Walden Dissertations and Doctoral Studies

Airports contribute about 5% of the gross domestic product and employ over 7 million people in the United States. The purpose of this qualitative multiple-case study was to explore the strategies that airport managers need to increase nonaeronautical revenue. A generic strategy does not exist to assist airport operators in generating operating income. Aeronautical revenue does not always provide sufficient funding for airport operations and existing research does not consistently provide effective strategies for all airports to generate revenue. The sample for this qualitative multiple case study consisted of 3 small commercial airport managers in the southeastern North Carolina coastal …

Cyber-Physical Embedded Systems With Transient Supervisory Command And Control: A Framework For Validating Safety Response In Automated Collision Avoidance Systems, Daniel K. Trembley

Graduate Dissertations and Theses

The ability to design and engineer complex and dynamical Cyber-Physical Systems (CPS) requires a systematic view that requires a definition of level of automation intent for the system. Since CPS covers a diverse range of systemized implementations of smart and intelligent technologies networked within a system of systems (SoS), the terms “smart” and “intelligent” is frequently used in describing systems that perform complex operations with a reduced need of a human-agent. The difference between this research and most papers in publication on CPS is that most other research focuses on the performance of the CPS rather than on the correctness …

Theory, Computation, And Modeling Of Cancerous Systems, Sameed Ahmed

Theses and Dissertations

This dissertation focuses on three projects. In Chapter 1, we derive and implement the compact implicit integration factor method for numerically solving partial differential equations. In Chapters 2 and 3, we generalize and analyze a mathematical model for the nonlinear growth kinetics of breast cancer stem cells. And in Chapter 4, we develop a novel mathematical model for the HER2 signaling pathway to understand and predict breast cancer treatment. Due to the high order spatial derivatives and stiff reactions, severe temporal stability constraints on the time step are generally required when developing numerical methods for solving high order partial differential …