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Articles 31 - 60 of 649
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The Religious Classroom: Analyzing The Cross-Application Of Instructional Communication Pedagogy To Youth Ministries, Lakelyn Taylor
The Religious Classroom: Analyzing The Cross-Application Of Instructional Communication Pedagogy To Youth Ministries, Lakelyn Taylor
Electronic Theses and Dissertations
Instructional communication literature suggests that, to achieve optimal student learning outcomes, an instructor must completely engage in all aspects of experiential learning. It follows, then, that youth ministers should also employ experiential learning in their youth ministries to achieve their learning outcome goals among the youth they teach. This research project examined three research questions: 1.) What pedagogical strategies do youth ministers use during large group class sessions? 2.) In what ways do youth ministers employ instructional communication best practices within their pedagogical strategies? 3.) What strategies do former students remember their youth minister using the most? The analysis revealed …
Framework For Modeling Attacker Capabilities With Deception, Sharif Hassan
Framework For Modeling Attacker Capabilities With Deception, Sharif Hassan
Electronic Theses and Dissertations
In this research we built a custom experimental range using opensource emulated and custom pure honeypots designed to detect or capture attacker activity. The focus is to test the effectiveness of a deception in its ability to evade detection coupled with attacker skill levels. The range consists of three zones accessible via virtual private networking. The first zone houses varying configurations of opensource emulated honeypots, custom built pure honeypots, and real SSH servers. The second zone acts as a point of presence for attackers. The third zone is for administration and monitoring. Using the range, both a control and participant-based …
Quality Diversity: Harnessing Evolution To Generate A Diversity Of High-Performing Solutions, Justin Pugh
Quality Diversity: Harnessing Evolution To Generate A Diversity Of High-Performing Solutions, Justin Pugh
Electronic Theses and Dissertations
Evolution in nature has designed countless solutions to innumerable interconnected problems, giving birth to the impressive array of complex modern life observed today. Inspired by this success, the practice of evolutionary computation (EC) abstracts evolution artificially as a search operator to find solutions to problems of interest primarily through the adaptive mechanism of survival of the fittest, where stronger candidates are pursued at the expense of weaker ones until a solution of satisfying quality emerges. At the same time, research in open-ended evolution (OEE) draws different lessons from nature, seeking to identify and recreate processes that lead to the type …
A Deep Learning Approach To Diagnosing Schizophrenia, Justin Barry
A Deep Learning Approach To Diagnosing Schizophrenia, Justin Barry
Electronic Theses and Dissertations
In this article, the investigators present a new method using a deep learning approach to diagnose schizophrenia. In the experiment presented, the investigators have used a secondary dataset provided by National Institutes of Health. The aforementioned experimentation involves analyzing this dataset for existence of schizophrenia using traditional machine learning approaches such as logistic regression, support vector machine, and random forest. This is followed by application of deep learning techniques using three hidden layers in the model. The results obtained indicate that deep learning provides state-of-the-art accuracy in diagnosing schizophrenia. Based on these observations, there is a possibility that deep learning …
Group Composition Characteristics As Predictors Of Shared Leadership: An Exploration Of Competing Models Of Shared Leadership Emergence, Richard Currie
Group Composition Characteristics As Predictors Of Shared Leadership: An Exploration Of Competing Models Of Shared Leadership Emergence, Richard Currie
Electronic Theses and Dissertations
The study of leadership in organizations has received much research attention over the past several decades. However, most of this research has examined hierarchical structures of leadership wherein one individual leads, or is perceived to lead, several other individuals. With a growing number of organizations structuring employees within teams or work groups, researchers have begun studying the ways in which leadership operates in groups. One alternative to the traditional hierarchical structure is for leadership to be distributed or shared in groups such that multiple group members contribute to the overall leadership function of the group. As a result, researchers have …
Streamflow Prediction In Ungauged Basins Located Within Data-Scarce Regions, Mohammadhossein Alipour
Streamflow Prediction In Ungauged Basins Located Within Data-Scarce Regions, Mohammadhossein Alipour
Electronic Theses and Dissertations
Preservation and or restoration of riverine ecosystem requires quantification of alterations inflicted by water resources development projects. Long records of streamflow data are the first piece of information required in order to enable this analysis. Ungauged catchments located within data-scarce regions lack long records of streamflow data. In this dissertation, a multi-objective framework named Streamflow Prediction under Extreme Data-scarcity (SPED) is proposed for streamflow prediction in ungauged catchments located within large-scale regions of minimal hydrometeorologic observation. Multi-objective nature of SPED allows for balancing runoff efficiency with selection of parameter values that resemble catchment physical characteristics. Uncertain and low-resolution information are …
Realtime Editing In Virtual Reality For Room Scale Scans, Charles Greenwood
Realtime Editing In Virtual Reality For Room Scale Scans, Charles Greenwood
Electronic Theses and Dissertations
This work presents a system for the design and implementation of tools that support the editing of room-scale scans within a virtual reality environment, in real time. The moniker REVRRSS ("reverse") thus stands for Real-time Editing (in) Virtual Reality (of) Room Scale Scans. The tools were evaluated for usefulness based upon whether they meet the criterion of real time usability. Users evaluated the editing experience with traditional keyboard-video-mouse compared to a head mounted display and hand-held controllers for Virtual Reality. Results show that users prefer the VR approach. The quality of the finished product when using VR is comparable to …
A Comparative Analysis Of Public School Collective Bargaining Agreements In Florida, Aliza Berk
A Comparative Analysis Of Public School Collective Bargaining Agreements In Florida, Aliza Berk
Electronic Theses and Dissertations
This study examines the terms and conditions found in the 67 Florida public school collective bargaining agreements. Such collective bargaining agreements are negotiated between two parties, the teacher unions and their employers, under Florida Statute 447. The purpose of this mixed-methods study, conducted using both qualitative and quantitative research methods, is as follows: 1) to determine the extent to which CBA provisions exist within the master contracts of Florida teachers (2016-2017) and; 2) to determine the extent to which, if any, collective bargaining provisions vary among school districts (i.e. district size, district performance, district locale). The study finds that none …
Suspensions And Referrals To Law Enforcement Of African American Students Pre And Post Restorative Justice, Adrienne Brown
Suspensions And Referrals To Law Enforcement Of African American Students Pre And Post Restorative Justice, Adrienne Brown
Electronic Theses and Dissertations
The purpose of this study was to compare the number of suspensions and referrals to law enforcement from traditional consequences administered to students in a large urban school district in southeastern United States for the school year 2013 to 2014 to the number of suspensions and referrals to law enforcement from consequences rendered after the implementation of restorative justice practices in the 2015 to 2016 school year, as reported to the Civil Rights Office of Data Collection (CRDC, 2016). There was statistical evidence that schools had policies and/or practices in place that had a discriminatory bias towards racial groups when …
Characterization Of Florida Landfills With Elevated Temperatures, Ryan Joslyn
Characterization Of Florida Landfills With Elevated Temperatures, Ryan Joslyn
Electronic Theses and Dissertations
The occurrence of elevated temperatures within landfills is a very challenging issue for landfill operators to detect and correct. Little is known regarding the causes of elevated temperatures (ETs) and the number of landfills currently operating under such conditions. Therefore, the goal of this research was to determine which landfills within Florida have been impacted by ETs, and to develop a more complete understanding of the factors that may lead to these landfills becoming elevated temperature landfills (ETLFs). Historical landfill gas wellhead data, waste deposition reports, and landfill site geometry were collected for 27 landfill cells through the FDEP OCULUS …
Vibration Reduction Of Mistuned Bladed Disks Via Piezoelectric-Based Resonance Frequency Detuning, Garrett Lopp
Vibration Reduction Of Mistuned Bladed Disks Via Piezoelectric-Based Resonance Frequency Detuning, Garrett Lopp
Electronic Theses and Dissertations
Recent trends in turbomachinery blade technology have led to increased use of monolithically constructed bladed disks (blisks). Although offering a wealth of performance benefits, this construction removes the blade-attachment interface present in the conventional design, thus unintentionally removing a source of friction-based damping needed to counteract large vibrations during resonance passages. This issue is further exacerbated in the presence of blade mistuning that arises from small imperfections from otherwise identical blades and are unavoidable as they originate from manufacturing tolerances and operational wear over the lifespan of the engine. Mistuning is known to induce vibration localization with large vibration amplitudes …
The Examination Of A Mobile Application For The Reduction Of Posttraumatic Stress Related Symptoms In Emergency Dispatchers, Emy Willis
Electronic Theses and Dissertations
Emergency dispatchers report that their jobs are stressful, yet there are few controlled investigations examining their specific psychological complaints. Additionally, research examining the use of interventions directed at alleviating their work-related stress is limited. This study aims to examine the efficacy and feasibility of a mobile application (PTSD Coach) on various indicators of psychosocial well-being among emergency telecommunicator dispatchers. A sample of 117 emergency dispatchers completed self-report psychological mood assessments at baseline, weekly for five weeks during PTSD Coach use and post-treatment. Participant report of psychological symptoms showed statistically significant decreases in mood severity over the period of one month.
The Effects Of Dynamic Versus Isometric Postactivation Potentiation On Collegiate Female Rowers, Idan Harat
The Effects Of Dynamic Versus Isometric Postactivation Potentiation On Collegiate Female Rowers, Idan Harat
Electronic Theses and Dissertations
Post-activation potentiation (PAP) has been shown to improve acute power-based performance, and the potential to enhance rowing performance. To examine PAP effects with rowing performance, 40 collegiate female rowers performed isometric potentiating (ISO), dynamic potentiating (DYN) and typical control (CON) warm-up protocols, after which they completed a three-minute all-out test (3MT) to evaluate their total distance, peak power, mean power, critical power, anaerobic working capacity (W') and stroke rate. Fifteen-second splits for distance and mean power were also analyzed. The PAP protocols were performed on a rowing ergometer, in a movement pattern that simulated rowing. ISO consisted of 5 × …
Novel Fuel-Producing Fungi And Methodologies For Increasing Fuel Production, Yuemin Wang Kovaleff
Novel Fuel-Producing Fungi And Methodologies For Increasing Fuel Production, Yuemin Wang Kovaleff
Electronic Theses and Dissertations
An endophytic fungus Hypoxylon sp. (BS15) has recently been isolated and found to produce volatile organic compounds (VOCs) that have potential relevance as hydrocarbon fuels. In the work described here, the traditional refined carbohydrate (e.g., sucrose) diet source was replaced by simple sugars produced using a solvent free green chemistry mechanocatalytic method involving ball milling in the solid. BS15 is able to grow on this degraded cellulose as well as the more traditional potato dextrose broth. The volatile compounds produced from both media were largely the same. Unfortunately, it is observed that long term in vitro growth of BS15 results …
Transparency And Communication Patterns In Human-Robot Teaming, Shan Lakhmani
Transparency And Communication Patterns In Human-Robot Teaming, Shan Lakhmani
Electronic Theses and Dissertations
In anticipation of the complex, dynamic battlefields of the future, military operations are increasingly demanding robots with increased autonomous capabilities to support soldiers. Effective communication is necessary to establish a common ground on which human-robot teamwork can be established across the continuum of military operations. However, the types and format of communication for mixed-initiative collaboration is still not fully understood. This study explores two approaches to communication in human-robot interaction, transparency and communication pattern, and examines how manipulating these elements with a robot teammate affects its human counterpart in a collaborative exercise. Participants were coupled with a computer-simulated robot to …
Decentralized Consensus-Based Control Allocation For Some Dynamical Systems, August Mark
Decentralized Consensus-Based Control Allocation For Some Dynamical Systems, August Mark
Electronic Theses and Dissertations
In this dissertation, three separate studies, wherein techniques from graph theory and consensus control are used to address control allocation problems, are presented. In the first study, a decentralized allocator is presented for synthetic jet actuators and control surfaces onboard a small unmanned aerial vehicle to cooperatively generate desired aerodynamic moments. First order linear dynamics are assumed for both the synthetic jet actuators and control surfaces. A weighted consensus algorithm with limited feedback is used for the aerodynamic moment contribution allocator considering constraints. In the second study, the same allocation problem as in the first study is considered, but the …
Grandma Got Passed Over By A Manager: The Intersection Of Age And Gender In Hiring, Alyssa Perez
Grandma Got Passed Over By A Manager: The Intersection Of Age And Gender In Hiring, Alyssa Perez
Electronic Theses and Dissertations
Research has demonstrated how age stereotypes influence judgment and decision making at work, but older workers are more than just older. All individuals are members of multiple demographic categories, yet we know surprisingly little about how multiple category membership affects judgments and decision making at work. Competing models have been suggested, such as the category activation and inhibition model (Kulik et al., 2007) and the intersectional salience of ageism at work model (Marcus & Fritzsche, 2015). However, empirical tests of these models are scarce. In the present study, the age and gender of job applicants were manipulated in a mock …
Resource Optimization In Visible Light Communication Using Internet Of Things, Akash Dey
Resource Optimization In Visible Light Communication Using Internet Of Things, Akash Dey
Electronic Theses and Dissertations
In the modern day, there is a serious spectrum crunch in the legacy radio frequency (RF) band, for which visible light communication (VLC) can be a promising option. VLC is a short-range wireless communication variant which uses the visible light spectrum. In this thesis, we are using a VLC-based architecture for providing scalable communications to Internet-of-Things (IoT) devices where a multi-element hemispherical bulb is used that can transmit data streams from multiple light emitting diode (LED) boards. The essence of this architecture is that it uses a Line-of-Sight (LoS) alignment protocol that handles the hand-off issue created by the movement …
Forward Osmosis For Algae Dewatering And Electrical Field-Driven Membrane Fouling Mitigation, Faris Munshi
Forward Osmosis For Algae Dewatering And Electrical Field-Driven Membrane Fouling Mitigation, Faris Munshi
Electronic Theses and Dissertations
Efficient and low-energy microalgae harvesting is essential for sustainable biofuel production. Forward osmosis (FO) can provide a potential alternative for algae separation with low energy consumption by using osmotic pressure. In this study, an aquaporin-based polyethersulfone (PES) membrane was evaluated for algae dewatering using FO with three different types of draw solutions (DSs: NaCl, KCl and NH4Cl), and under different cross flow velocities (CFVs). 81% of algae dewatering was achieved with a 29% flux drop. Among three different DSs, although NH4Cl was the best candidate for improved water flux and low reverse salt flux (RSF), it could accelerate cell division, …
Fluctuations In Walking Speeds And Spatiotemporal Gait Parameters When Walking On A Self-Paced Treadmill At Level, Incline, And Decline Slopes, Cesar Castano
Electronic Theses and Dissertations
On a daily basis, humans walk over a variety of terrains. Studies have shown that spatiotemporal gait parameters, such as stride length, stride frequency, stride variability, etc., change when humans walk down a decline and up an incline compared to level ground. However, these studies have been limited to using fixed speed treadmills or analyzing a small number of strides when conducted over ground. Thus, there is a need to investigate the fluctuations in spatiotemporal gait parameters of humans walking at their self-selected speed, which requires recording hundreds of strides. Here we hypothesized that subjects will walk with a slower …
Bending The Binary: Effects Of Nonbinary Gender Media Representations On Disposition Formation And Media Enjoyment, Diana Higley
Bending The Binary: Effects Of Nonbinary Gender Media Representations On Disposition Formation And Media Enjoyment, Diana Higley
Electronic Theses and Dissertations
Today, the issue of gender plays a larger role in our social discussions than in the past. Over the last decade, new and groundbreaking television shows and movies that showcase gender nonconforming characters and plots that challenge traditional gender roles have become more common. The aim of the present study was to examine the potential effects of gender-neutral representations in media programming and particularly whether different representations of gender might influence audience attitudes toward characters and overall enjoyment of the media. Affective Disposition Theory and Moral Foundations Theory were used as a framework for understanding people's perceptions of gender-neutral media …
Lattice-Valued T-Filters And Induced Structures, Frederick Reid
Lattice-Valued T-Filters And Induced Structures, Frederick Reid
Electronic Theses and Dissertations
A complete lattice is called a frame provided meets distribute over arbitrary joins. The implication operation in this context plays a central role. Intuitively, it measures the degree to which one element is less than or equal to another. In this setting, a category is defined by equipping each set with a T-convergence structure which is defined in terms of T-filters. This category is shown to be topological, strongly Cartesian closed, and extensional. It is well known that the category of topological spaces and continuous maps is neither Cartesian closed nor extensional. Subcategories of compact and of complete spaces are …
Chemical Composition Of Preclassic-Period Maya Slips: Analysis And Interpretation Of Flores Waxy Ware And Paso Caballo Waxy Ware Sherds From Holtun, Guatemala Using Pxrf Spectrometry, Anna Kebler
Electronic Theses and Dissertations
Slip, a fluid suspension of clay that is applied to the surface of a piece of ceramic, allows for increased control over the functional and aesthetic properties of a finished vessel. The potter can select a slip to provide a more appealing color, texture, and/or luster to the vessel's surface, while maintaining the favorable functional qualities of the paste. Though slip color has long been used as an attribute for classification in the Maya lowlands, only recently have the raw materials of slips been used to inform studies of production and exchange, with much of this work using Late and …
Gamification: Badges And Feedback, Brian Macon
Gamification: Badges And Feedback, Brian Macon
Electronic Theses and Dissertations
Gamification, the implementation of game elements in a non-game context, is a rapidly growing field of research. One element of gamification that has experienced a rapid growth in popularity is the use of digital badges. Despite widespread adoption in educational settings, there are still gaps in the understanding of their effects on motivation, engagement, learning, and other factors. Furthermore, feedback delivered through badges can include a symbolic reward for successful completion of a task, providing a credential for gaining a skill, or acknowledging mastery of a particular piece of knowledge. This study implemented digital badges in online courses at a …
Efficient String Graph Construction Algorithm, S.M. Iqbal Morshed
Efficient String Graph Construction Algorithm, S.M. Iqbal Morshed
Electronic Theses and Dissertations
In the field of genome assembly research where assemblers are dominated by de Bruijn graph-based approaches, string graph-based assembly approach is getting more attention because of its ability to losslessly retain information from sequence data. Despite the advantages provided by a string graph in repeat detection and in maintaining read coherence, the high computational cost for constructing a string graph hinders its usability for genome assembly. Even though different algorithms have been proposed over the last decade for string graph construction, efficiency is still a challenge due to the demand for processing a large amount of sequence data generated by …
A Theoretical Investigation Of Small Organic Molecules On Transition Metal Surfaces, Walter Malone
A Theoretical Investigation Of Small Organic Molecules On Transition Metal Surfaces, Walter Malone
Electronic Theses and Dissertations
With the ever growing number of proposed desnity functional theory (DFT) functionals it becomes necessary to thoroughly screen any new method to determine its merit. Especially relevant methods include a proper description of the van der Waals (vdW) interaction, which can prove vital to a correct description of a myriad of systems of technological importance. The first part of this dissertation explores the utility of several vdW-inclusive DFT functionals including optB86b-vdW, optB88-vdW, optPBE-vdW, revPBE-vdW, rPW86-vdW2, and SCAN+rVV10 by applying them to model systems of small organic molecules, pyridine and thiophene, on transition metal surfaces. Overall, we find the optB88-vdW functional …
The Mathematics Achievement Gap In Virtual Education, Sara Glover
The Mathematics Achievement Gap In Virtual Education, Sara Glover
Electronic Theses and Dissertations
This phenomenological study examined the lived experiences of online Algebra I teachers as they relate to the instruction of minority students. There is an academic achievement gap that exists between minority students and their non-minority peers in United States public education (Sousa & Armor, 2016). Although national educational policy has sought to narrow the academic achievement gap, it is persistent and must be addressed because public education affects the future of our nation (Fullan & Quinn, 2016). Virtual education is a growing platform for learning, with nearly 300,000 students enrolled across the United States. Achievement data demonstrates the existence of …
The Migration Of Indians To Eastern Africa: A Case Study Of The Ismaili Community, 1866-1966, Azizeddin Tejpar
The Migration Of Indians To Eastern Africa: A Case Study Of The Ismaili Community, 1866-1966, Azizeddin Tejpar
Electronic Theses and Dissertations
Much of the Ismaili settlement in Eastern Africa, together with several other immigrant communities of Indian origin, took place in the late nineteenth century and early twentieth centuries. This thesis argues that the primary mover of the migration were the edicts, or Farmans, of the Ismaili spiritual leader. They were instrumental in motivating Ismailis to go to East Africa. Although there were other Indian groups from the general geographical area of Western Indian and Gujarat who also migrated to East Africa, the crucial factor in the migration of Ismailis were the edicts or Farmans of the Imams. My thesis argues …
Local Community Influences On Interpretation At Historical Sites And Museums, Jason Fitzgerald
Local Community Influences On Interpretation At Historical Sites And Museums, Jason Fitzgerald
Electronic Theses and Dissertations
"Local Community Influences on Interpretation at Historical Sites and Museums" is an analysis in how interpretations of historical content are chosen for visitors and to what degree local communities contribute to this decision process. What determines which stories and historical narratives are presented at historical sites and museums? Is the process of determining how to interpret historical events as simple as relating the event to the time and place that corresponds with that particular site? Is it possible that public historical sites and museums reflect the social values and points of interests of the local communities rather than accepted and …
Predicting Counterproductive Work Behavior With Explicit And Implicit Measures Of Conscientiousness, Agreeableness, And Emotional Stability, Jimmy Zheng
Electronic Theses and Dissertations
The current study leveraged the stressor-emotion model of CWB, the reflective-impulsive model of behavior, and theories of explicit and implicit personality to investigate the roles explicit and implicit aspects of personality, and work stressors have in influencing CWB. The stressor-emotion and reflective-impulsive models suggest that in addition to reflective (i.e., explicit) processes, impulsive (i.e., implicit) processes may also influence CWB because the act can be motivated by negative emotions induced by frustrating working conditions. Theories of personality and motivation suggest that conscientiousness, agreeableness, and emotional stability predict CWB because these traits motivate people to pursue goals that reduce or increase …