Digital Commons Network^™

Sensor Fusion Algorithm For Airborne Autonomous Vehicle Collision Avoidance Applications, Julien Albert Doe

Master's Theses

A critical ability of any aircraft is to be able to detect potential collisions with other airborne objects, and maneuver to avoid these collisions. This can be done by utilizing sensors on the aircraft to monitor the sky for collision threats. However, several problems face a system which aims to use multiple sensors for target tracking. The data collected from sensors needs to be clustered, fused, and otherwise processed such that the flight control system can make accurate decisions based on it. Raw sensor data, while filled with useful information, is tainted with inaccuracies due to limitations and imperfections of …

Ridership Ramp-Up For Fixed-Guideway Transit Projects: An Evaluation Of Initial Ridership Variation, Jill Elizabeth Shinn

Master's Theses

Performance-based planning and programming has increased in popularity for transit project funding in recent years. This methodology focuses on quantitative performance measures to inform decision making. For transit projects, projections or observed ridership is the most commonly used performance measure to evaluate project benefits. Conventional wisdom within the transit industry suggests that measuring the performance of a transit project immediately after project opening may not capture all the project’s benefits, since it takes time for a project to realize its short-term ridership potential, a process commonly referred to as ridership ramp-up. While this idea is both intuitive and appealing, especially …

Application Of Data Analytics For Prediction Of Suicide Rates At The State And National Levels, Derek Benson

Master's Theses

The increasing suicide rate in the United States has amplified the need to assure that regions with high suicide risk receive adequate funding for programs and related resources for prevention methods. The way in which organizations dedicated to preventing suicides distribute funding could be improved with the development of predictive models for suicide rates. In this study, a multiple linear regression model at a national level was developed to identify relevant factors associated with suicide. The national level model was developed in two phases; the first using response variable data and explanatory variable data from the same time period, and …

Generating Exploration Mission-3 Trajectories To A 9:2 Nrho Using Machine Learning, Esteban Guzman

Master's Theses

The purpose of this thesis is to design a machine learning algorithm platform that provides expanded knowledge of mission availability through a launch season by improving trajectory resolution and introducing launch mission forecasting. The specific scenario addressed in this paper is one in which data is provided for four deterministic translational maneuvers through a mission to a Near Rectilinear Halo Orbit (NRHO) with a 9:2 synodic frequency. Current launch availability knowledge under NASA’s Orion Orbit Performance Team is established by altering optimization variables associated to given reference launch epochs. This current method can be an abstract task and relies on …

Assessing Risk In Iot Devices, David Levitsky

Master's Theses

The explosive growth of the Internet of Things ecosystem has thrust these devices into the center of our lives. Unfortunately, the desire to create these devices has been stronger than the one to secure them. Recent attacks have shown us ignoring security in Internet of Things devices can cause severe harm in both a digital and physical sense. This thesis outlines a framework for developers and managers to assess the risk of IoT devices using a weighted scoring system across five different categories. Our case studies suggest that devices with higher security considerations have a better security posture and lower …

Micro-Nozzle Simulation And Test For An Electrothermal Plasma Thruster, Tyler J. Croteau

Master's Theses

With an increased demand in Cube Satellite (CubeSat) development for low cost science and exploration missions, a push for the development of micro-propulsion technology has emerged, which seeks to increase CubeSat capabilities for novel mission concepts. One type of micro-propulsion system currently under development, known as Pocket Rocket, is an electrothermal plasma micro-thruster.

Pocket Rocket uses a capacitively coupled plasma, generated by radio-frequency, in order to provide neutral gas heating via ion-neutral collisions within a gas discharge tube. When compared to a cold-gas thruster of similar size, this gas heating mechanism allows Pocket Rocket to increase the exit thermal velocity …

Investigating The Effect Of An Upstream Spheroid On Tandem Hydrofoils, Joel Tynan Guerra

Master's Theses

This thesis documents a series of three dimensional unsteady Reynolds Averaged Navier-Stokes CFD simulations used to investigate the influence of an upstream prolate spheroid body on tandem pitching hydrofoils. The model is validated by performing separate CFD simulations on the body and pitching hydrofoils and comparing results to existing experimental data. The simulations were run for a range of Strouhal numbers (0.2-0.5) and phase differences (0-π). Results were compared to identical simulations without an upstream body to determine how the body affects thrust generation and the unsteady flow field.

The combined time-averaged thrust increases with Strouhal number, and is highest …

Using Offline Activities To Enhance Online Cybersecurity Education, Sarah Padlipsky

Master's Theses

Since the beginning of the 21st century, the United States has experienced the impact of a technological revolution. One effect of this technological revolution is the creation of entirely new careers related to the field of technology, including cybersecurity. Continued growth in the cybersecurity industry means a greater number of jobs will be created, adding to the existing number of jobs that are challenging an under-educated and under-trained workforce. The goal of this thesis is to increase the effectiveness of cybersecurity education. This thesis studies whether an online course in cybersecurity can be enhanced by offline, in-person activities that mirror …

Progressing Flight: A Transformative And Somatically-Informed Performance Practice For The Aerial Dance Student Practitioner, Rosalinda Rojas

Master's Theses

Somatic based methods is an emerging area of interest within the subject area of dance study and more recent in aerial movement practice. Somatic movement experiences have inherent, distinctive and transformative characteristics to deepen understanding and knowledge of the concept of soma. This thesis investigates how somatic based exercises might influence physical strength, endurance, body awareness and sensitivity in an original research design. The study incorporates Progressing Ballet Technique or traditional based aerial circus methods with an aim to answer three essential questions. How might the use of somatic based or traditional aerial movement methods improve students’ muscular strength and …

Improving Student Skills Through Video-Guided Assessments In The Dance Classroom, Kate Elizabeth Secor

Master's Theses

The purpose of this study was to improve novice dance students’ technique and skill level through the use of video-guided summative assessments in the public high school classroom. The assessments and associated classroom activities examine how the use of video cameras can enhance movement instruction and promote the advancement of student skills if implemented in a meaningful way. The research was conducted in one semester with an introductory level dance class where nineteen student participants filmed themselves performing ballet exercises at the beginning and end of the semester. Participants and researcher assessed these videos using specific movement-based rubrics that measured …

Collaborating, Creating And Implementing: A Cohesive Project-Based Learning Social Studies Unit With The Goal Of Deepening Third Grade Student Learning Experiences, Sarah Avery Kulchinsky

Master's Theses

The purpose of this research study was to integrate dance in a social studies project-based learning (PBL) unit. The incorporation of dance in this unit was not only a learning experience for the students, but for the dance teacher and classroom teacher alike. The teachers worked cooperatively to plan and create this unit of study and through their collaboration taught the subject using their individual teaching styles. The classroom teacher used traditional instructional methods, while the dance teacher taught the same subject matter through the use of movement and dance. Throughout the unit, the teachers consulted to ensure student learning …

Nanosatellite Launch Data-Logger (Sync), Christopher Martin Gerdom

Master's Theses

CubeSat designers are increasingly looking to incorporate delicate structures and optics into their payloads. These delicate payloads, however, may not survive the required absolute-worst-case launch vibration testing needed for flight certification. To help address this problem, and to better match testing conditions to real-world launch environments, this thesis introduces Sync, a compact 1/4U CubeSat payload designed to collect data on the vibrations and thermal environments CubeSats experience inside a deployer on the way to orbit. This data can be used to better understand the launch environment for different vehicles, and help develop new, more realistic testing guidelines that could enable …

Amplifying The Prediction Of Team Performance Through Swarm Intelligence And Machine Learning, Erick Michael Harris

Master's Theses

Modern companies are increasingly relying on groups of individuals to reach organizational goals and objectives, however many organizations struggle to cultivate optimal teams that can maximize performance. Fortunately, existing research has established that group personality composition (GPC), across five dimensions of personality, is a promising indicator of team effectiveness. Additionally, recent advances in technology have enabled groups of humans to form real-time, closed-loop systems that are modeled after natural swarms, like flocks of birds and colonies of bees. These Artificial Swarm Intelligences (ASI) have been shown to amplify performance in a wide range of tasks, from forecasting financial markets to …

Discovering Countries And Their Cultures Through Movement: Fifth-Grade Students Developing Awareness And Empathy Toward Each Other, Rebecca S. Epstein

Master's Theses

The purpose of this study was to investigate and answer the following essential questions: 1) What are students’ responses to use of movement and dance to teach multi-cultural lesson content? 2) What movement and dance-based methods can be used to help fifth-grade students develop empathy towards classmates from different cultures and countries from around the world? 3) Which movement and dance-based lessons seemed to be most effective to develop student empathy for other students from a different culture and country? One goal of the study was to help students become more empathetic toward one another through movement. There were twenty-four …

Perceptions Of Technology In Dance Education: The Effect Of Technology On Student Learning And Teaching Strategies Of The Twenty-First Century Skills In Dance Education, Anna Kristine Gradwohl

Master's Theses

The purpose of this study was to assist educators in understanding the advantages and disadvantages of using technology in a dance classroom to teach the twenty-firstcentury- skills of creativity, critical thinking, and collaboration. This research evaluated perceptions of technology integration through the lens of fifty-four current dance educators with a goal of discovering the effects technology has on teaching strategies and student learning in a dance classroom. The research instrument used in this study was an electronic survey that included both quantitative and qualitative questions to analyze the data. The data suggested that current dance educators supported the use of …

Vitality Of Water/Vitalidad Del Agua: Our Sacred Connection To Water And How We Can Interpret The Importance Of Water Through Artistic Inquiry, Jenifer Fogarty

Master's Theses

Water has appeared in the work and study of artists for centuries. There are countless aspects of water to be explored, from the sheer physical qualities of water to the spiritual, political, and practical associations with water. Water is what gives us life, and yet the vitality of this precious resource has been threatened over time. This exploration highlights important aspects of the study of water through art-making. My exploration began in the studio while making my own work. I sought to create a multi-sensory environment where viewers could participate and be immersed in the work itself. The site-specific installation …

Vulnerable Narcissism, Self-Criticism, And Self-Injurious Behavior: Emotion Regulation As A Moderator, Philip Stoner

Master's Theses

College students of traditional age have an elevated risk of self-injury (McManus et al., 2015). Self-injurious behavior (SIB) often indicates increased mental health concerns and elevated suicide risk (Whitlock, Eckenrode & Silverman, 2006). Self-criticism represents a non-physical form of self-injury (Baetens, et al., 2015), which is also associated with psychological distress and suicidal behavior. Thus, it is important to understand the risk factors associated with SIB and self-criticism. Vulnerable narcissism has been linked to self-injury (Dawood et al., 2017); however, there is little consensus about the nature of this relationship. Moreover, vulnerable narcissism has been associated with impaired emotion regulation …

Pathways Of Psychopathic Traits To Aggression Through Affective Correlates, Olivia C. Preston

Master's Theses

This thesis project examines the roles of empathy facets and emotion dysregulation in the relationship between psychopathic personality traits and aggression within an undergraduate sample. The project addresses three gaps in research – how psychopathic personality traits relate to empathy facets from a recently developed measure of empathy (Affective and Cognitive Measure of Empathy [ACME]; Vachon & Lynam, 2016); how psychopathic traits indirectly affect aggression functions (i.e., reactive, proactive) through empathy facets; and how emotion regulation contributes to these relations, above and beyond empathy. The sample was comprised of 368 university students. Findings indicated that largely all psychopathic traits were …

Antioxidant Genes In Apis Mellifera, Their Implication In Pesticide Detoxification, Nicholas Rinderer

Master's Theses

The effect of pesticides on Apis mellifera mortality as well as their effect on the transcriptional regulation of antioxidant genes was the aim of this study. Unlike previous studies, the work here shows the combined effects of pesticides imidacloprid and coumaphos on worker bees at levels likely encountered by workers using both toxological and molecular analysis. Bee brood were collected from hives and incubated until hatching. The 1 day old bees were then segregated and subjected to varying concentrations of coumaphos and imidacloprid both independently and in concert. Workers from each treatment group were removed and stored in RNA-later until …

Psychopathic Personality Traits As A Moderator Of The Relationship Between Social Intelligence And Relational Aggression, Savannah Merold

Master's Theses

Social intelligence has been identified as one of many predictors of relational aggression. It is likely that a certain level of social intelligence may be necessary for relationally aggressive behaviors to be effective (e.g., some ability to understand human behavior is necessary to effectively harm others through the manipulation of status, social relationships, or sense of belonging). And yet, social intelligence is unlikely to be sufficient to produce relationally aggressive behavior. Merely because someone has the requisite levels of social intelligence to use relational aggression does not mean that he or she will be motivated to do so. There is …

Increasing Teachers' Use Of Behavior Specific Praise Via A Smart Watch, Kristi White

Master's Theses

This study evaluated the effects of a teacher prompting procedure to increase teacher behavior specific praise using a Smart Watch. Participants included three Head Start general education teachers. An ABAB design across participants was used to examine the effects of Smart Watch-based prompts on teachers’ praise rate. The study consisted of four phases: a) baseline, b) teacher praise training and intervention, c) withdrawal from intervention, and d) intervention reinstated. Implementation of the intervention resulted in increases of average behavior specific praise rates and general praise rates for all three participants. Although, averages fail to reach criterion set by the researcher …

Epic Adolescence: Contemporary Adolescence In Philip Pullman’S His Dark Materials, Chloe Felterman

Master's Theses

To find the truth of a societal construct or phenomena, it can help to look at the world of fiction and fantasy. Though this idea may seem ironic or counter-intuitive, one will find that fictional literature can reveal the working order of its respective society. Philip Pullman’s epic fantasy trilogy, His Dark Materials, uses and manipulates the traditional constructs of the genre to reflect and re-imagine the concepts of adolescence of the late-20^th and early-21^st centuries. Eleven-year-old protagonist Lyra Belacqua and subsequently her cohort, Will Perry, reveal the complications and difficulties modern American and British adolescents experience as …

The Song Style Of Antonio Carlos Jobim: An Analysis Of Four Songs, Rachel Rogers

Master's Theses

The songs of Antônio Carlos Jobim are a national treasure of Brazil, beloved around the world. Their beauty and subtle simplicity have enthralled audiences for the last 60 years, yet they often reveal some unusual construction. Following the lead of other Brazilian theorists, this study was commenced with the belief that applying rigorous theoretical analysis to bossa nova would show its qualityand enduring worth. Four songs were selected for analysis based on their importance in Jobim’s career and their centrality to the bossa nova genre, “Chega de Saudade,” “Corcovado,” “Insensatez,” and “Garota de Ipanema.” They are among the most recorded …

Freshwater Invertebrate Assimilation Nutrients From Detrital Biofilms Under Light And Phosphorus Manipulation, Taylor Price

Master's Theses

Anthropogenic influences are increasing algal biomass and activity within aquatic ecosystems, stimulating debate regarding interactions between “green” and “brown” food webs. Specifically, in forested streams, the removal of forest canopy or riparian zones increases light exposure and nutrient fluxes to streams affecting primary productivity and carbon (C) flows across aquatic food webs. Further understanding the synergistic effects of light and nutrients on detrital biofilms may explain how aquatic detritivores respond to anthropogenic change. The objective of this study was to employ C and phosphorus (P) isotopic radiolabels to understand how microbial biofilm constituents (i.e heterotroph and autotroph) contribute C and …

Political Beliefs, Region Of Residence, And Openness To Firearm Means Safety Measures To Prevent Suicide, Sarah E. Butterworth

Master's Theses

Firearms account for approximately half of all suicides in the US and are highly lethal, widely available, and popular; thus, firearms are an ideal candidate for targeted means safety interventions. However, despite their value as a suicide prevention tool, firearm means safety strategies are not widely utilized, possibly due to factors which impede openness to their use. This study examined the relationship between region, political beliefs, and openness to firearm means safety in a sample of 300 American firearm owners. Overall, firearm owners were more willing to engage in means safety for others than for themselves and to store firearms …

The Influence Of Socioeconomic Status And Subjective Social Status On The Career Development Of College Students, Dylan Richard

Master's Theses

Social class is often examined across social science disciplines and contains two distinct parts: socioeconomic status (SES) and subjective social status (SSS). Researchers have established that college students from various SES backgrounds experience college differently, however little research has examined how universities and those that work with college students can help aid the career development of students given their SES. Career development is a broad area of research; therefore, the current study examines a number of career development variables that are key in understanding college students’ career development, such as career adaptability, career decision-making difficulty, work values, and vocational interests. …

Pseudomonas/Brachypodium As A Model System For Studying Rhizosphere Plant Microbe Interactions Under Water Stress, Janiece Mcwilliams

Master's Theses

In contrast to well-studied mechanisms of drought tolerance in plants, the interactions between plants and their microbiome during water stress are still poorly understood. This missing knowledge is crucial for the exploitation of beneficial microbial communities to improve the sustainability of agriculture under changing climatic conditions. The research described here bridged this gap by focusing on the molecular interactions between beneficial rhizobacterium Pseudomonas synxantha 2-79 and annual grass Brachypodium distachyon Bd21. 2-79 exemplifies a group of rhizobacteria associated with dryland wheat, while B. distachyon originates from the Middle East and has emerged as a model for valuable biomass, food, forage, …

Holocene Formation And Evolution Of Horn Island, Mississippi, Usa, Nina Gal

Master's Theses

Horn Island, one of the most stable barriers along the Mississippi-Alabama chain, provides critical habitat, helps regulate estuarine conditions in the Mississippi Sound, and reduces wave energy and storm surge for the mainland. This study integrates 2,200 km of high-resolution geophysics, 35 sediment cores, and 15 radiocarbon ages to better understand the formation and evolution of the island in response to sea-level rise, storms, and antecedent geology. The Biloxi and Pascagoula incised valleys converge at Horn Island and have played a profound role in the evolution of the system. Within the incised valleys, numerous shallow paleochannels between 4 and 9 …

Rhetoric, Legislation, And The Felony Offender, Cyrus Taylor

Master's Theses

Rhetoric is arguably of more importance than the message that is being overtly conveyed. Therefore, it is of great importance to understand how rhetoric can be utilized to convey one message while simultaneously transmitting another distinct message (Walter 2017). In this study, discourse analysis was conducted by examining the rhetoric associated with the Violent Crime Control and Law Enforcement Act (VCCLE), through the use of legislative speeches and newspaper articles, to determine how language has effectively resulted in the relegation of felony offenders within a class-based society. Utilizing two theories, class structure theory and distributive justice theory, an understanding was …

A Stormwater Management Model For California Polytechnic State University Campus, Hsuan-Wen Chu

Master's Theses

Developments that have been taking place on Cal Poly campus over the years have altered the natural hydrology of the area. Stormwater management practices could help reduce the impacts of these developments. Computer models can help to design effective and economical stormwater management solutions at a watershed scale. As such, the objective of this study was to develop a stormwater management model for Cal Poly campus. The model was developed based on the utility data obtained from the university and other watershed data available from open sources. Field surveys were conducted to address some anomalies in the utility data, and …