FILENAME: Adhikari_fsu_0071N_17218.pdf
TITLE: Comparative Performance Analysis of Grid-Tied MMC and VSC Converter
AUTHOR: Adhikari, Atindra P.,
MEMBER (professor directing thesis): Faruque, Md Omar
MEMBER (committee member): Pamidi, Sastry V.
MEMBER (committee member): Li, Yuan
CORPORATE NAME: Florida State University
CORPORATE NAME: FAMU-FSU College of Engineering
CORPORATE NAME: Department of Electrical and Computer Engineering
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (123 pages)
ABSTRACT: The conventional 2-level voltage source converter (VSC) was first commercialized in an HVDC project by ABB in 1997. This topology being cost effective, having simpler design and control attracted the vendors to be used in high power high voltage applications. Apart from the benefits, this topology also offered limitations which included; the requirement of bulky and expensive filters for the mitigation of low order harmonics in the output voltage waveform. These harmonics can be nullified by using high frequency switching which pushes the low order frequency spectrum to higher order frequencies which in turn affected in reducing the filter size but corresponded to another cumbersome issue of increased converter switching losses. Therefore there was always a conflicting design compromise between converter switching losses and the need for bulky harmonic filter for filtration. IGBTs being low to medium voltage rated devices which typically ranges from 1.7kV to 6.5kV, does not have the capability to withstand the full DC-link voltage. This brings us to another troublesome issue with conventional VSC which is, this topology requires series connected IGBTs to form the converter arm valves. This means that these switching devices requires sophisticated gate drives to maintain dynamic and static voltage balancing to ensure the simultaneous switching of all the IGBTs in the converter arm. This incommodious situation in turn limits the overall efficiency of 2-level VSC. This research is mainly aimed to make a comparison of VSC converters with a relatively new compact design solution to all the foregoing problems by modelling a 21-level Modular Multilevel Converter (MMC). As the name suggest multilevel, which eliminates the need of massive and expensive filter requirements and modular, which eliminates the need for series connected IGBTs when used in high power high voltage applications like HVDC. This converter topology regulates in lower switching frequency which in turn reduces the converter switching losses. The MMC system that has been studied in this work involves a 100kV DC converter station connected to a 220kV, 50Hz grid station connected with two 50MW parallel loads through successive transmission lines of 10km. This work compares modelling and design of grid-tied conventional VSC and MMC. Transformation of signals from ABC frame to direct-quadrature frame (dq0) and independent control of active and reactive power at point of common coupling (PCC) are done using vector current control technique. The Proportional (P) and Integral (I) gains are calculated using Modulus Optimum tuning criteria. The modulation technique used for conventional VSC is Sinusoidal Pulse Width Modulation (SPWM) and on the other hand Phase-Shifted Pulse Width Modulation (PS-PWM) has been used for MMC topology. The step time is set to 6.06e-6 s as the switching frequency of the converters is 1650Hz. The conventional VSC is realized using the Universal Bridge block from the Simulink library whereas the MMC is realized using the Half-Bridge MMC block and selecting aggregate model type. Both the converter topologies are analyzed and compared on the basis of their mathematical modelling of their AC dynamics, control complexity and stability conditions, output voltage quality, switching losses, total harmonic distortion (THD), harmonic spectrum analysis, filter requirement, cost and design structure and AC fault analysis. Based on result comparison it is found that MMC topology produces less voltage harmonics than the conventional VSC. The output current waveform of MMC is smooth whereas the VSC output waveform is full of ripples. This shows the need for AC harmonic filters at the converter output for the conventional VSC. The shifting of switching frequency to 3x fundamental frequency has minimum effect on the MMC topology based on the total harmonic distortion in the output voltage as compared to VSC. Although MMC is superior in every aspect but during AC faults the MMC shows more instability and high fault current as compared to VSC topology.
NOTE (Submitted Note): A Thesis submitted to the Department of Electrical and Computer Engineering in partial fulfillment of the requirements for the degree of Master of Science.
NOTE (Date of Defense): June 30, 2022.
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Md Omar Faruque, Professor Directing Thesis; Sastry Pamidi, Committee Member; Yuan Li, Committee Member.
SUBJECT: Electrical engineering
DEGREE: Masters
FILENAME: Aldawsari_fsu_0071E_17049.pdf
TITLE: Mechanical, Microstructural, and Durability Characterization of Fly Ash/Slag-Based Geopolymer with Limited OPC and Different Alkaline Activator Ratios
AUTHOR: Aldawsari, Salem,
MEMBER (professor co-directing dissertation): Kampmann, Raphael, 1980-
MEMBER (professor co-directing dissertation): Rambo-Roddenberry, Michelle Deanna
MEMBER (university representative): Vanli, Omer Arda
MEMBER (committee member): Spainhour, Lisa
MEMBER (committee member): Tang, Youneng
CORPORATE NAME: Florida State University
CORPORATE NAME: FAMU-FSU College of Engineering
CORPORATE NAME: Department of Civil and Environmental Engineering
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (117 pages)
ABSTRACT: Different building materials have been used in construction for centuries to meet the accommodation needs. Building materials were primarily designed to tolerate the environmental impacts and to meet the demand. However, some of these materials did not survive in the past due to their engineering limitations and durability concerns. Concrete is among the survived ones and is considered one of the primary materials used on earth. Concrete is a composite material primarily composed of ordinary Portland cement, water, coarse aggregate, and fine aggregate. Portland cement is the main binder component of regular concrete. Producing Portland cement requires a high amount of energy and heat, which corresponds to releasing carbon dioxide (CO2) in the atmosphere and negatively impacts the environment. Geopolymer concrete is a promising material that can be produced using by-product materials such as fly ash and slag as prime binders of the concrete and sodium hydroxide (NaOH) and sodium silicate (Na2SiO3) as alkaline activators. Gel phases formed from fly ash/slag-based geopolymer concrete are mainly sodium aluminosilicate hydrate (N-A-S-H) and calcium aluminosilicate hydrate (C-A-S-H), and the limited replacement of OPC may improve the coexistence of these gels. In geopolymer concrete, aluminosilicate sources (fly ash and slag) do not react entirely to form sodium-aluminosilicate-hydrate and calcium-aluminosilicate-hydrate gel phases, and that produce deficient microstructural formation. Besides the gel formations deficiency, a part of the binders remains unreacted, which sequentially induces lower mechanical performance and a part of the aluminosilicate sources to be wasted. Thus, in this study, fly ash and slag combinations were used with limited OPC content as a maximum of 12% of the total binder to improve properties of the fly ash/slag-based geopolymers and increase the uptake of calcium that is provided from OPC. The low-calcium fly ash has a slow setting time, whereas ground granulated blast furnace slag (GGBFS) has a rapid setting time, and it is crucial in the evaluation in this study to measure the effect on the hydration time. Therefore, in the first stage of this research, the effect of OPC and Na2SiO3/NaOH (SS/SH) ratios on the setting time is a significant part of this study. Moreover, microstructural formation, gel phase identification, and elemental composition studies were evaluated besides the strength developments at certain ages to investigate the changes in the development of the binary system. For the setting time measurements, a penetrometer was modified to meet ASTM C191–Standard Test Methods for Time of Setting of Hydraulic Cement by Vicat Needle. A different set of equipment and tools were used for compressive strength properties, including digital caliper, precision balance, 20-quarts mixer, vibrating table, diamond saw, and compressive strength testing equipment. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) were mainly used to assess microstructural characterizations and analysis of elemental compositions. Three sodium silicate to sodium hydroxide ratios were considered, and five batches were mixed in the first stage for each ratio. For each batch, a total of fifteen cylinder samples 2x4 inch were cast. In total, sixteen batches were mixed, including the geopolymer pastes and Portland cement pastes. At each testing age, five specimens were tested to record the maximum compressive strength according to ASTM C39-Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens. For SEM/EDS analysis, three samples were tested for each SS/SH ratio. The three samples were prepared for the microscope following the ASTM C1723- Standard Guide for Examination of Hardened Concrete Using Scanning Electron Microscopy. In the second stage of this research, durability studies were conducted for up to 120 days. The specimens were soaked in two different environments: magnesium sulfate as the aggressive solution and regular tap water as the reference. The samples were cured for 28 days to reach sufficient maturity, and then test results were recorded at 56, 90, and 120 days. The studies concluded that the addition of Portland cement by minimal percentage as 3% and 6% content could significantly contribute to the hydration kinetics and the development of the low calcium fly ash/slag-based materials. Replacing GGBFS by 3% of OPC for R0.5 (SS/SH=0.5), R1.0 and R1.5 increased the initial setting time by 10%, 29%, and 4%, respectively. The effect of OPC on the final setting time was more pronounced using more OPC content. By increasing OPC content up to 6%, the final setting time increased by 18%, 14%, and 38% for R0.5, R1.0, and R1.5, respectively. The compressive strength results improved by 9.8%, 12.5%, and 7.0% with adding 3%, 6%, and 3% of OPC for R0.5, R1.0, and R1.0 at 120 days, respectively. In the microstructural analysis, the density of the hydrated products formed increased with increasing the SS/SH ratio. The SEM micrographs of the reaction products of R1.0 and R1.5 showed homogeneity and well-compactness. The microstructural formation improved significantly for R1.0 and R1.5 by using 6% and 3% of OPC, respectively, at 120 days. The elemental compositions analyses using EDS show significant shifts in the gel phases formed with OPC addition. The CaO/SiO2 revealed a substantial increasing trend with increasing OPC content, whereas the Al2O3/SiO2 ratio demonstrated a decreasing trend with increasing OPC content. Multiple gel phases co-existed in the final products formed, including N-A-S-H, C-N-A-S-H, C-A-S-H, and C-S-H. After the results of EDS analysis, the N-A-S-H gel phase was dominant in the control groups, whereas calcium-rich phases dominated the samples with OPC content. The durability studies showed that the increase in the SS/SH ratio from 1.0 to 1.5 increased the availability of the soluble silica. The existence of the free silica improved the dissolution of the precursors, which increased the reaction rate and improved the development of hydrated products.
NOTE (Submitted Note): A Dissertation submitted to the Department of Civil and Environmental Engineering in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): April 15, 2022.
NOTE (Keywords): Alkali activated, fly ash, geopolymer, microstructure, Portland cement, slag
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Raphael Kampmann, Professor Co-Directing Dissertation; Michelle Rambo-Roddenberry, Professor Co-Directing Dissertation; Arda Vanli, University Representative; Lisa Spainhour, Committee Member; Youneng Tang, Committee Member.
SUBJECT: Engineering
SUBJECT: Materials science
SUBJECT: Civil engineering
DEGREE: Doctoral
FILENAME: Aldossari_fsu_0071E_17365.pdf
TITLE: Scrambling Additive Lagged-Fibonacci Generators
AUTHOR: Aldossari, Haifa,
MEMBER (professor directing dissertation): Mascagni, Michael
MEMBER (university representative): Ökten, Giray
MEMBER (committee member): Aggarwal, Sudhir
MEMBER (committee member): Kumar, Piyush, (Computer Science Professor)
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Arts and Sciences
CORPORATE NAME: Department of Computer Science
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (224 pages)
ABSTRACT: Random numbers are used in a variety of applications including simulation, sampling, and cryptography. Fortunately, there exist many well-established methods of random number generation. An example of a well-known pseudorandom number generator is the Lagged-Fibonacci Generator (LFG). Marsagliashowed that lagged-Fibonacci generator using addition failed some of his DIEHARD statistical tests while it passed all when longer lags were used. This paper presents a scrambler that takes bits from a pseudorandom number generator and outputs (hopefully) improved pseudorandom numbers. The scrambler is based on a modified Feistel function, a method used in the generation of cryptographic random numbers, and multiplication by a chosen multiplier. We show that this scrambler improves the quality of pseudorandom number by applying it to the additive LFG with small lags. The scrambler performs well based on its performance with the Testu01 suite of randomness tests. The scrambling of the LFG is so successful that scrambled LFGs with small lags perform as well as unscrambled LFGs with long lags. This comes at the cost of a doubling of execution time, and provides users with generators with small memory footprints that can provide parallel generators like the LFGs in the SPRNG parallel random number generation package.
NOTE (Submitted Note): A Dissertation submitted to the Department of Computer Science in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): June 29, 2022.
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Michael Mascagni, Professor Directing Dissertation; Giray Okten, University Representative; Sudhir Aggarwal, Committee Member; Piyush Kumar, Committee Member.
SUBJECT: Computer science
DEGREE: Doctoral
FILENAME: Alfonso_fsu_0071N_17440.pdf
TITLE: Use of a Single Sensor to Detect Articulatory Deficits in Parkinson's Disease: A Feasibility Study
AUTHOR: Alfonso, Enak,
MEMBER (professor directing thesis): Kim, Yunjung
MEMBER (committee member): Morris, Richard Jack, 1950-
MEMBER (committee member): Madden, Elizabeth Brookshire
MEMBER (committee member): Lansford, Katlin L.
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Communication and Information
CORPORATE NAME: School of Communication Science and Disorders
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (38 pages)
ABSTRACT: Individuals with Parkinson's disease (PD) frequently exhibit deficits across various aspects of speech which include respiration, phonation, resonance, articulation, and prosody. Among these, literature has highlighted articulatory deficits such as imprecise tongue and jaw movements in this population, which consequently deteriorates their speech intelligibility. Recently, three-dimensional electromagnetic tracking systems have been increasingly used to track and record articulatory positions that are attached to various articulators providing sub-millimeter accuracy. These devices have primarily demonstrated reduced range and speed of articulatory movement in PD. However, using multiple sensors to detect dysarthria is time-consuming and costly. This creates many obstacles for using the system for clinical purposes, such as assessment and treatment of motor speech disorders. The current study investigates whether a single sensor can be used to detect dysarthria and differentiate individuals with PD from healthy controls. Especially given the growing use of jaw-decoupling procedures in the studies of dysarthria, the two methodologies (jaw coupled vs. decoupled) are also compared with respect to the sensitivity of dysarthria. The findings have revealed that individuals with PD have longer sentence durations and similar articulatory distance when compared to healthy controls (HC). When speech intelligibility was considered, larger tongue movements were correlated with higher ratings of speech intelligibly for PD speakers and lower ratings for controls. In addition, the findings revealed that tongue front sensors are preferred to tongue back sensors and the jaw-decoupling process does not yield a significant difference. This provides insight that one sensor is clinical feasible to use for clinical purposes.
NOTE (Submitted Note): A Thesis submitted to the School of Communication Science and Disorders in partial fulfillment of the requirements for the degree of Master of Science.
NOTE (Date of Defense): April 27, 2022.
NOTE (Keywords): Articulatory Distance, Articulatory Kinematics, Dysarthria, Parkinson's Disease, Single Sensor, Speech Intelligibility
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Yunjung Kim, Professor Directing Thesis; Richard Morris, Committee Member; Elizabeth Madden, Committee Member; Kaitlin Lansford, Committee Member.
SUBJECT: Speech therapy
DEGREE: Masters
FILENAME: Anbouhi_fsu_0071E_17325.pdf
TITLE: Universal Mappings and the Metric Geometry of Functional Data
AUTHOR: Anbouhi, Soheil,
MEMBER (professor directing dissertation): Mio, Washington
MEMBER (university representative): Quaife, Bryan
MEMBER (committee member): Aluffi, Paolo, 1960-
MEMBER (committee member): Heil, Wolfgang H.
MEMBER (committee member): Needham, Thomas
MEMBER (committee member): Patrangenaru, Victor
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Arts and Sciences
CORPORATE NAME: Department of Mathematics
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (59 pages)
ABSTRACT: We study functional data defined by an underlying structure (modeled as a metric space or ametric measure space) and feature information (represented by a 1-Lipschitz function on the ground structure). If the ground structure is a metric space, we call it a functional space. We construct a Urysohn space (i.e., universal and homogeneous functional space) for the class of functional spaces. We also show that the Urysohn space is a generic functional space in the topological sense. If the underlying structure is a metric measure space (mm-space), we call it a functional metric measure space (fmm-space). Extending well-known distance functions between mm-spaces (i.e., Box distance, Gromov-Prokhorov distance, and Gromov-Wasserstein distance) to the functional setting, we study several ways of comparing fmm-spaces. Furthermore, we investigate the relationship between the mentioned distance functions and a notion of dissimilarity between fmm-spaces based on their matrix distributions. vi
NOTE (Submitted Note): A Dissertation submitted to the Department of Mathematics in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): June 24, 2022.
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Washington Mio, Professor Directing Dissertation; Bryan Quaife, University Representative; Paolo Aluffi, Committee Member; Wolfgang Heil, Committee Member; Thomas Needham, Committee Member; Victor Patrangenaru, Committee Member.
SUBJECT: Mathematics
DEGREE: Doctoral
FILENAME: Austin_fsu_0071E_17348.pdf
TITLE: Tri-Modal Models of Locomotion Applications to Robot Design and Control
AUTHOR: Austin, Max,
MEMBER (professor directing dissertation): Clark, Jonathan E.
MEMBER (university representative): Roberts, Rodney G.
MEMBER (committee member): Hubicki, Christian M.
MEMBER (committee member): Shoele, Kourosh
CORPORATE NAME: Florida State University
CORPORATE NAME: FAMU-FSU College of Engineering
CORPORATE NAME: Department of Mechanical Engineering
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (123 pages)
ABSTRACT: Everyday animals maneuver through complex unstructured environments provided by the natural world. One way in which we can study these behaviors in animals is by partitioning the natural world into differing domains and analyzing the modes of locomotion employed by animals within them. Though animals appear to achieve multi-modality with apparent ease no robots have yet been able to approach the same degree of modal diversity. Some motivating reasons for this derive from limited understandings of the intersection between domains and how uniting these diverse modes changes the design of mechanisms and control. This work seeks to develop tools to assist with the task of bridging three different domains of legged locomotion. In particular, this work takes its primary focus on developing models which intersect with the aquatic domain, which has been largely unmodeled for legged robotics. To that end, the first thrust of this work entails developing a model that intersects between the scansorial and aquatic domains of legged locomotion. This model is then evaluated by the first legged robot capable of producing both of these forms of locomotion. Following this the a new model is developed to capture the intersection between the aquatic and terrestrial domains, which also serves to evaluate different levels of hydrodynamic complexity. It is shown here that optimizing a simple version of this model the efficiency of hopping in resistive media can be greatly improved and that differing levels of model can show a good degree of accuracy with legged swimming. Finally, some of the models of locomotion are applied to the task of robotic design for dynamically challenging behaviors including: enabling high performance terrestrial gaits on the large robot LLAMA, and enabling multi-modality on a newly designed small scale robot.
NOTE (Submitted Note): A Dissertation submitted to the Department of Mechanical Engineering in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): July 6, 2022.
NOTE (Keywords): Bio-Inspired Robots, Climbing Robots, Legged Locomotion, Multi-Modality, Swimming Robots
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Jonathan Clark, Professor Directing Dissertation; Rodney Roberts, University Representative; Christian Hubiki, Committee Member; Kuroush Shoele, Committee Member.
SUBJECT: Robotics
DEGREE: Doctoral
FILENAME: Bak_fsu_0071E_17369.pdf
TITLE: College Students' Fake News Discernment: Critical Thinking, Locus of Control, Need for Cognition, and the Ability to Discern Fact from Opinion
AUTHOR: Bak, Hyerin,
MEMBER (professor directing dissertation): Gross, Melissa
MEMBER (university representative): Paek, Insu, (Professor of measurement and statistics)
MEMBER (committee member): Latham, Don, 1959-
MEMBER (committee member): Mon, Lorri M.
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Communication and Information
CORPORATE NAME: School of Information
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (145 pages)
ABSTRACT: In current news media environments where the separation between fact and opinion is blurred, it is important to understand college students' media literacy practices and variables that may affect how they discern fake news. The purpose of this study was to investigate variables that may be related to college students' fake news discernment, inspired by Potter's cognitive media literacy model (2004). The investigated variables included college students' ability to discern fact from opinion, critical thinking skills, beliefs in their control over situations or experiences (locus of control), and the degree to which they engage in and enjoy thinking (need for cognition). The study employed a sequential explanatory mixed-methods research design that consisted of a quantitative study followed by a qualitative study.The survey quantitatively measured 296 college students' fact and opinion discernment, critical thinking skills, need for cognition, and locus of control. Critical thinking was a variable positively correlated with the fact and opinion discernment, as well as the need for cognition respectively. Group differences in the fact and opinion discernment, locus of control, and need for cognition scores were found. The follow-up interview data with 19 college students further explained the survey results and their media literacy practices. They described how they discern fact from opinion and evaluate information when reading news online. They stated that polarized media environments and their prior knowledge made information evaluation difficult when reading news online. The participants also described the importance and motivation of discerning fact and opinion and evaluating information in news reports. The study findings inform considerations for media literacy education which strengthens students' skills regarding fake news discernment. This study suggests future work that further investigates the studied variables, such as developing the fact and opinion discernment instrument with borderline statements and developing a media literacy model in the context of news reading.
NOTE (Submitted Note): A Dissertation submitted to the School of Information in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): July 1, 2022.
NOTE (Keywords): critical thinking, fact and opinion, fake news, media literacy, news literacy
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Melissa Gross, Professor Directing Dissertation; Insu Paek, University Representative; Don Latham, Committee Member; Lorri Mon, Committee Member.
SUBJECT: Information science
SUBJECT: Library science
SUBJECT: Education
DEGREE: Doctoral
FILENAME: Banini_fsu_0071E_17273.pdf
TITLE: (Re)negotiating the Identity of the Contemporary Francophone Subsaharan in the Fiction of Léonora Miano, Calixthe Beyala, and Alain Mabanckou La (Re)négociation Identitaire Du Subsaharien Francophone Contemporain Dans L'Écriture Romanesque De Léonora Miano, De Calixthe Beyala Et d'Alain Mabanckou
AUTHOR: Banini, Josiane Salome,
MEMBER (professor directing dissertation): Munro, Martin
MEMBER (university representative): Kavka, Martin
MEMBER (committee member): Murray-Román, Jeannine, 1977-
MEMBER (committee member): Leushuis, Reinier, 1969-
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Arts and Sciences
CORPORATE NAME: Department of Modern Languages and Linguistics
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (298 pages)
ABSTRACT: The Senegalese writer Léopold Sédar Senghor is known for being a proponent of the cultural métissage, the Civilization of the Universal, the dialogue of cultures and the concept of humanism. He notably suggests the complementarity of different cultures and of populations as a basis for any great civilization, and he emphasizes the importance of exchange and dialogue among cultures. The idea of the multi-affiliation or identity has been the feature of the work of Francophone sub-Saharan authors Léonora Miano, Calixthe Beyala, and Alain Mabanckou. This dissertation explores the (re)negotiation of the sociocultural identity of contemporary francophone sub-Saharans in the 20th and 21st centuries with a focus on the works of Miano, Beyala, and Mabanckou. Through a close reading of my corpus, I examine how these authors present one or more facets constituting the new socio-cultural identity of sub-Saharans today. This study pays a particular attention to how these authors treat and rethink the notions of métissage, borderlands/frontière, Afropea, the African female body, gender roles, and identity. By highlighting the sociocultural and sexual realities that lead Sub-Saharans characters to define themselves as culturally hybrid/métis or as socially androgynous, I analyze the three authors' treatment of the construction of their identity from a phenomenological, psychological, and sociological perspective. In my dissertation, I show how the renegotiation of sub-Saharans' identity results from social and sexual emancipation in Beyala's work; from cultural métissage in Mabanckou's work; and/or from afropeanity or cultural hybridity in Miano's work. In other words, this study shows how social norms, cultural heritage, and society shape gender roles and identity; how cultural experiences and openness to the Other affect the sub-Saharans' vision of the world and their identity today. From a sociological perspective, chapter two analyzes the idea of a social androgyny as a subversive shift in gender roles to rethink the relationship between African women and men as social groups and to deconstruct social norms and the gaze of the Other concerning the representation of the African female body through Beyala's oeuvre. Chapter three explores the impact of the western dream, "rêve occidental," and the concept of "non-return" in the case of clandestine sub-Saharan migrants. I analyze how Mabanckou treats the questions of migration, of in-betweenness, and of non-return from a psychological standpoint by highlighting how lived experiences both in African and French societies shape and affect the identity of these sub-Saharans. Chapter four examines how the idea of Afropeanity in Miano's work echoes in both Glissant's theory of the poetics of relation, Senghor's theory of the dialogue of cultures, and Mbembe's cosmopolitanism to create a space in which sub-Saharans (including the non-migrant sub-Saharan) become cultural hybrids also known as "Afropeans" by living their adopted culture and simultaneously valuing their African roots. Through Miano's work and from a phenomenological perspective, I show how they move consecutively from a space of uncomfortable in-betweenness to spaces of afropeanity and cosmopolitanism both by embracing cultural hybridity and diversity.
NOTE (Submitted Note): A Dissertation submitted to the Department of Modern Languages and Linguistics in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): May 27, 2022.
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Martin Munro, Professor Directing Dissertation; Martin Kavka, University Representative; Jeannine Murray-Román, Committee Member; Reinier Leushuis, Committee Member.
SUBJECT: African literature
SUBJECT: Africa--Civilization
DEGREE: Doctoral
FILENAME: Bannister_fsu_0071N_17434.pdf
TITLE: Early Elementary Spaces for Active Learning and Constructivist Teaching
AUTHOR: Bannister, Rachel,
MEMBER (professor directing thesis): Ransdell, Marlo E.
MEMBER (committee member): Sickler, Stephanie M.
MEMBER (committee member): Mick, Meghan
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Fine Arts
CORPORATE NAME: Department of Interior Architecture and Design
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (210 pages)
ABSTRACT: The objective of this study was to evaluate how the design of the built environment can assist schoolteachers in their use of constructivist techniques as students transition from learning by play to didactic learning in early elementary learning spaces. With the increased expectations and standards for early elementary school, how can the built environment support both teachers and constructivist learning approaches such as experiential and active learning strategies to increase interactive and playful learning?Children's transition to structured schooling is associated with new experiences and challenges for students and parents. Students experience new environments, people, and modes of learning (Fabian & Dunlop, 2007). In addition to this impactful life transition as children enter primary school, increased state-mandated standards have resulted in more didactic teaching approaches in kindergarten causing an abrupt transition to sedentary learning from play focused learning in prekindergarten ("The New First Grade: Too Much Too Soon," 2006; Miller & Almon, 2009). However, Friedrich Froebel's intent for kindergarten was far different than what we see today, with kindergartens looking far different when compared to the original and prekindergarten in the United States more accurately resembling Froebel's vision (Fabian & Dunlop, 2007). Early childhood theorists, Piaget and Vygotsky, deemed learning by play essential for young children, proving critical for social and emotional skills (Wenner, 2009; Barros, Silver, & Stein, 2009; Coolahan, Fantuzzo, Mendez, & McDermott, 2000; Raver & Ziegler, 1997; Fantuzzo & McWayne, 2002; Coolahan, Fantuzzo, Mendez, & McDermott, 2000; Yogman, 2018). There is evidence to show children in early elementary school, learn best by doing; (Taylor & Boyer, 2019; Yogman, 2018) so, the physical classroom environment and supportive learning spaces should support this type of active and playful learning by providing spaces that allow teachers to engage their students in these types of learning experiences. Priorities have shifted due to increased expectations as many teachers find themselves in a dilemma balancing didactic teaching for learning standards versus developmentally appropriate practices. Design considerations of the physical classroom impact how a teacher engages students in subject matter (Byers, Imms, & Hartnell-Young, 2014; Thomas, 2010; Monahan, 2002). Design of the built environment can also assist teachers' utilization of active learning strategies through intentional space planning and design programming. This study hopes to understand how learning spaces can support active learning, equipping teachers with the spaces, layout, and technology needed to accommodate active learning practices to meet required objectives. By evaluating constructivist active learning strategies through a qualitative study, the researcher aims to use design as a tool to lessen the abrupt change from playful learning to sedentary learning commonly occurring as students transition into primary school. Findings from a teacher focus group provided the researcher with emergent themes aligning with constructivist pedagogy for Florida's early elementary learning standards. Focus group discussion provided the researcher with the design considerations and programming criteria to form a comprehensive design solution to ease the transition into didactic learning through a variety of learning environments and design considerations supportive of active learning strategies.
NOTE (Submitted Note): A Thesis submitted to the Department of Interior Architecture and Design in partial fulfillment of the requirements for the degree of Master of Fine Arts.
NOTE (Date of Defense): July 5, 2022.
NOTE (Keywords): Active Learning, Constructivism, Design, Early Elementary, Experiential Learning, Pedagogy
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Marlo Ransdell, Professor Directing Thesis; Stephanie Sickler, Committee Member; Meghan Mick, Committee Member.
SUBJECT: Design
SUBJECT: Architecture
SUBJECT: Education
DEGREE: Masters
FILENAME: Bates_fsu_0071E_17231.pdf
TITLE: Second Language Perception of Spanish Monophthongal Vowels
AUTHOR: Bates, Daniel,
MEMBER (professor directing dissertation): González, Carolina
MEMBER (university representative): Almond, Russell G.
MEMBER (committee member): Sunderman, Gretchen L.
MEMBER (committee member): Muntendam, Antje
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Arts and Sciences
CORPORATE NAME: Department of Modern Languages and Linguistics
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (228 pages)
ABSTRACT: This dissertation research examines the acquisition of second language vowels. For second language learners, learning a new languages' sound inventory, particularly its vowels, presents a challenge perceptually and in terms of production. Incorrectly perceiving and producing sounds in a second language results in a foreign accent in many adult learners (Flege, 1995), as mental representations of second language sounds have not been properly established in the mind of the learner (Best, 1991). Vowel sounds are particularly relevant in discussion of foreign-accented speech.Second language vowel perception has received relatively little attention in recent literature, especially for English speakers learning Spanish as a second language. Often, empirical findings are inconsistent with each other. For example, Gordon (2011) found that, perceptually, learners struggle with Spanish vowels /i/ and /e/, interpreting them as English vowels /ɪ/ and /ɛ/, respectively. Garcia de las Bayonas (2004; 2008) indicates that learners struggle most perceiving /u/ and /e/. Most research on the acquisition of these vowels focuses on learner production rather than perception, with equally inconsistent findings (see, for example, Cobb & Simonet, 2015; Menke & Face, 2010). Additionally, the role of syllable stress is often not incorporated into these studies despite the importance of syllable stress in saliency and understanding. These gaps in the literature present an exciting opportunity to understand these acquisitional processes, beginning with the under-studied role of perception. Building on the methodology of Garcia de las Bayonas (2004) and other perceptual studies, this remotely conducted study explores the perception of Spanish vowels by English-speaking learners with special attention paid to the role of syllable stress. Efforts are made to better understand (1) at what point these learners establish the mental representations necessary for Spanish vowel sounds, (2) which English vowels interfere with this learning process, and (3) the role of syllable stress in vowel perception. Participants included 243 Spanish learners in seven different levels of Spanish learning, indicated by class enrollment. The methodology include a discrimination task and an identification task. In the discrimination task, participants hea two disyllabic Spanish words and are asked to decide if the words were different or identical. In the identification task, participants are given a disyllabic Spanish word with one vowel highlighted. Participants are provided with five vowel sounds and select which of the sound options belonged with the highlighted vowel. The options consist of both Spanish and English vowel sound options. Confidence levels (on a scale of 1-7) are reported for all responses. Results from the first task indicate that vowels in stressed syllables are easier to perceive for all groups. For less-experienced learners, discriminating between the Spanish vowels /o/ and /u/ prove to be most difficult, as these vowels differ acoustically much more than their English vowel equivalents. The results of this task indicate that students in their fourth semester of learning (and those more advanced) performed statistically similar to native speaker controls. The identification task reveals that learners struggle to correctly identify the Spanish vowels /e/ and /a/. When asked to identify the vowel /e/, many learners select the English vowels /ɛ/, and especially /ɪ/. For items targeting /a/, many participants select /æ/, /ɑ/ and the reduced vowel schwa [ə]. These results indicate that these English vowels cause the most interference for learners learning Spanish, resulting in Multiple-category Assimilation (Best, 1991; Escudero & Boersma, 2002). Results from this task also indicate that learners in their 4th semester, and those who are more advanced, tend to make selections statistically similar to native Spanish speakers. The results of this study indicate that by the end of the second year of classroom study, many second language Spanish learners have established mental representations for the vowels of Spanish. Language dominance scores are also collected from each participant (using the Bilingual Language Profile (Birdsong, Gertken, & Amengual, 2012)), which were found to have a strong linear correlation with performance in both tasks, both in terms of accuracy and reported confidence levels. This supports the notion that the more a person uses a language, the better established their phonological inventory will be. Measures of language proficiency and language attitudes are also found to be correlated with participants' accuracy and confidence levels. These findings support theoretical claims made by the Perceptual Assimilation Model (Best, 1991), and shows the process by which mental representations are established for second language phones. Future studies should explore these results in conjunction with vowel production while not forgetting the effect of syllable stress.
NOTE (Submitted Note): A Dissertation submitted to the Department of Modern Languages and Linguistics in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): April 18, 2022.
NOTE (Keywords): acquisition, perception, phonetics, phonology, Spanish, vowels
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Carolina González, Professor Directing Dissertation; Russell Almond, University Representative; Gretchen Sunderman, Committee Member; Antje Muntendam, Committee Member.
SUBJECT: Linguistics
DEGREE: Doctoral
FILENAME: Bishop_fsu_0071E_17121.pdf
TITLE: A Modernist Mending of the Mind-Body Split? : Historicizing the Ideals of Musicality and Embodiment in the Eurhythmics of Émile Jaques-Dalcroze
AUTHOR: Bishop, Caroline,
MEMBER (professor directing dissertation): Von Glahn, Denise, 1950-
MEMBER (university representative): Corrigan, John, 1952-
MEMBER (committee member): Brewer, Charles E. (Charles Everett)
MEMBER (committee member): Broyles, Michael, 1939-
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Music
CORPORATE NAME: College of Music
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (309 pages)
ABSTRACT: Swiss composer, educator, and creator of eurhythmics Émile Jaques-Dalcroze (1865-1950) oriented his pedagogical philosophy around the concept of unifying the mind-body split, the ontology that is often attributed to René Descartes and Western traditions of thought. In this dissertation I consider how Jaques-Dalcroze sought to instrumentalize music and musicality toward mind-body unity and how contemporary Dalcroze Eurhythmics practice remains committed to giving students the sense of returning to their bodies and becoming whole, integrated selves, and in the process finding joy and interconnectedness. The term "eurhythmics," not a coinage of Jaques-Dalcroze himself, uses the Greek prefix eu- to signify the goodness, health, and ease that early practitioners observed to be its benefits. The study draws upon analyses and histories of modernism from the fields of literature, cultural geography, and musicology to place eurhythmics within the discourse of modernism in a way that previous scholarship has not yet done. Within musicology, the past thirty years or so have witnessed a fruition of scholarship on embodiment. At the outset of this movement to include the body more explicitly and more thoughtfully in scholarly analyses of music, such work represented a necessary counterbalance to existing paradigms. Now that embodiment is a well-developed terrain in the discipline, it is possible to position Jaques-Dalcroze, a figure whose work centralizes the body, in this musicological tradition and to think about what a history of his eurhythmics can add to our understanding of musical modernism. It is instructive to think of Jaques-Dalcroze as a modernist artist both because of the role he assigned to music and more specifically because of his preoccupation with rhythm. Rhythm was a topic of great interest to philosophers, physicians, painters, and acousticians at the turn of the twentieth century in Europe and America; in fact, it would be difficult to name a field in which rhythm did not garner excitement. Influenced by his rhythm-obsessed milieu and by German Idealism, Jaques-Dalcroze conceived of music as transcendent, and though eurhythmics is ostensibly about the mind-body unification that he described in his own writings, he also frequently expressed a desire for music to help transcend the trappings of physicality. He often wrote about "absolute" music as the highest form of music. I argue that this is because, paradoxically, he feared the sensuality of the body and the diversity of human bodily forms. The major critique that runs throughout the dissertation is thus that Jaques-Dalcroze's claim for eurhythmics as a restorative force in the face of fin-de siècle decadence and later after the destruction of the First World War was not equitably conceived. Rather, it was ineluctably marred by his commitment to sexist, racialist, and ethnonationalist views. He was a believer in the utopia and universality of rhythmic movement at the same time as he professed anti-Semitic and anti-Black views. Jaques-Dalcroze's career trajectory is telling as to how he came to espouse his discriminatory views. He framed his experience of non-Western musics in French-colonized Algiers as the impetus to centralizing rhythm in his pedagogy. His accounts of this time of inspiration are marked by the anti-Black racialized stereotyping that was endemic to the colonizer perspective within many colonialist contexts. I argue that histories of eurhythmics must no longer recapitulate the existing pattern in scholarship that for the most part overlooks the racialism embedded in Jaques-Dalcroze's recollections of the creative stimulus he found abroad. His later involvement with German industrialists and architects enabled him to play out an idea of a eurhythmic utopia at Hellerau, near Dresden. It is evident that Jaques-Dalcroze associated himself with staunch anti-Semites there, but it is likely that his own anti-Semitism predated those associations. By examining textual evidence supplemented with iconography, I reconstruct a history of eurhythmics as it existed under the auspices of its creator. I focus on the early period of this history, from the 1880s to about 1930, and on continental European settings, even as eurhythmics found enthusiastic support in England and America by 1920. My delimitations allow me to conclude that Jaques-Dalcroze was a product of a period of intense ethnonationalist sentiment, and while he might be dismissed by some as merely a product of his time, I maintain that historical relativism should not excuse his racist biases. When we discuss Jaques-Dalcroze's premise of mind-body unity today, we should account for his intent to include only certain groups of people in this utopian construction.
NOTE (Submitted Note): A Dissertation submitted to the College of Music in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): April 13, 2022.
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Denise Von Glahn, Professor Directing Dissertation; John Corrigan, University Representative; Charles E. Brewer, Committee Member; Michael Broyles, Committee Member.
SUBJECT: Music--History and criticism
SUBJECT: Music--Instruction and study
DEGREE: Doctoral
FILENAME: Block_fsu_0071E_17303.pdf
TITLE: The Light and Dark Side of Positional Indispensability: Understanding the Relationship among Goalkeepers, Indispensability, and Behavioral, Cognitive, and Emotional Outcomes
AUTHOR: Block, Carly Juliana,
MEMBER (professor directing dissertation): Wolf, Svenja Anna
MEMBER (university representative): Newman, Joshua I., 1976-
MEMBER (committee member): Becker, Martin Swanbrow
MEMBER (committee member): Chow, Graig Michael
MEMBER (committee member): Phillips, Beth M.
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Education
CORPORATE NAME: Department of Educational Psychology and Learning Systems
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (86 pages)
ABSTRACT: A playing position that many sports team cannot play without is a goalkeeper. Goalkeepers hold a vital role on their team due to their unique positional requirements such as being the last line of defense and having task and motivational leadership obligations. As a result, it can be argued that they are a highly instrumental or indispensable playing position within their team. It can also be suggested that the cognitive, emotional, and behavioral outcomes goalkeepers might face are related to their indispensability towards their teams' success and the relationship with their team and coach. Thus, the purposes of the present study were to determine if goalkeepers were the most indispensable position in their sport and to understand what makes them indispensable. Additionally, this study examined the outcomes of perceived indispensability for athletes and determined if the team environment acted as a moderator. A sample of 229 athletes from 47 competitive collegiate teams completed an online survey comprised of measures for self-perceptions of indispensability and leadership duties, other perceptions of indispensability and leadership duties of playing positions, effort, enjoyment, concerns over mistakes, perceived pressure, anxiety, excitement, team-cohesion, and the coach-athlete relationship. By conducting multiple quantitative analyses, the results showed that goalkeepers are perceived by their teammates to be the most indispensable due to their role requirements and leadership duties. The results also revealed that the more indispensable the athletes feel, the greater effort, excitement, and enjoyment they have when competing. Athletes' individual attraction and relatedness to their team's tasks and goals was found to moderate the relationships between self-indispensability and athletes' thoughts of concerns over mistakes and perceived pressure. These findings support and add to the definition and outcomes of social indispensability. The present study can provide practitioners and coaches with an increased awareness of the cognitive, behavioral, emotional, and social impact of being a goalkeeper as well as teach them importance of helping athletes improve perceptions of self-indispensability.
NOTE (Submitted Note): A Dissertation submitted to the Department of Educational Psychology and Learning Systems in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): June 3, 2022.
NOTE (Keywords): Behaviors, Cognitions, Emotions, Goalkeepers, Indispensability, Sport Psychology
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Svenja Wolf, Professor Directing Dissertation; Joshua Newman, University Representative; Martin Swanbrow Becker, Committee Member; Graig Chow, Committee Member; Beth Phillips, Committee Member.
SUBJECT: Psychology
DEGREE: Doctoral
FILENAME: Boswell_fsu_0071E_17252.pdf
TITLE: Relationships between Music Experience and Steady Beat Performance in Wind Instrumentalists
AUTHOR: Boswell, Matthew A.,
MEMBER (professor directing dissertation): Geringer, John M.
MEMBER (university representative): Holzman, Bruce
MEMBER (committee member): Dunnigan, Patrick, 1957-
MEMBER (committee member): Springer, D. Gregory (Douglas Gregory)
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Music
CORPORATE NAME: College of Music
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (102 pages)
ABSTRACT: Of the fundamental elements of Western music, tempo could be considered among the most vital because of its outsized impact on the remaining elements. The performance and maintenance of tempo in musical context requires precise timing and correction at multiple neurological levels. For well over 100 years psychologists have used tempo-related timing tasks, most frequently in the form of synchronization or self-paced tapping tasks, to explore the neurological underpinnings of the unique human timing system. Yet, despite the importance of tempo and timekeeping to music, music researchers have not often explored the performance of steady beats among live musicians. Therefore, the purpose of this dissertation was to investigate the temporal consistency of different experience groups of university-aged wind instrumentalists in both a continuation tapping task and a short playing task. Participants (N = 80) were undergraduate non-music majors, undergraduate music majors, and graduate wind performance majors. The three distinct groups had different musical backgrounds—such as the number of years playing their instrument or studying their instrument privately—and reported different amounts of independent metronome use. The participants engaged in a synchronization-continuation tapping task using a drum stick at two different tempos and the amount of interval-to-interval variability as well as drift from metronomic time were considered. The variability of intervals in the tapping task were not significantly different between the three groups; however, the amount of drift was significantly different between the groups. The least experienced musicians typically exhibited greater drift—both positive and negative—than the more experienced musicians. Further, both the tempo and the order of the tapping tasks impacted performance. Last, repeated performance of the tasks showed some evidence of improvement especially for the less-experienced participants. Participants performed a modified version of the melody from Beethoven's Ode to Joy on their primary instrument after listening to a metronome in the playing task. The same dependent measures as the tapping task were calculated. There were significant differences between the three groups for both variability and drift. Correlations between participant tapping and playing performance, however, were weak suggesting that tapping and playing performance were based on different skills—at least in this investigation. Potential reasons for this lack of relationship are discussed including the possibility of residual expressive timing playing a role. Secondary research questions were also addressed in the context of these results. First, participants were asked to self-assess their own temporal performance in both the tapping and playing task (i.e., rushing, dragging, or staying in time). Participants' assessments were correct at chance levels suggesting an inability to accurately assess their own performance. Second, participants were asked about the specific strategies they had employed to complete the tasks. Strategies like "internalizing the pulse" or "subdividing" were often listed by participants yet mentions of these strategies were sometimes paired with inconsistent tempo performance. Thus, the impact of such strategies remains to be tested. Suggestions for future music research in this area as well as potential impacts in music education are discussed.
NOTE (Submitted Note): A Dissertation submitted to the College of Music in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): April 28, 2022.
NOTE (Keywords): continuation tapping, musical timing, steady beat, synchronization tapping, tapping, tempo performance
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): John M. Geringer, Professor Directing Dissertation; Bruce Holzman, University Representative; Patrick Dunnigan, Committee Member; D. Gregory Springer, Committee Member.
SUBJECT: Music--Instruction and study
SUBJECT: Music
DEGREE: Doctoral
FILENAME: Brantley_fsu_0071N_17469.pdf
TITLE: Microbial and Meiofaunal Assemblage Structure under Differing Near-Bottom Flow Conditions of the West Florida Escarpment
AUTHOR: Brantley, William,
MEMBER (professor directing thesis): Baco-Taylor, Amy R. (Amy Rose)
MEMBER (committee member): Ingels, Jeroen
MEMBER (committee member): Brooke, Sandra
MEMBER (committee member): Rokyta, Darin
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Arts and Sciences
CORPORATE NAME: Department of Earth, Ocean and Atmospheric Science
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (65 pages)
ABSTRACT: Marine sediments are one of the largest habitats on Earth and are home to an incredibly diverse array of microbial and meiofaunal organisms.  Infaunal microorganisms and meiofauna are integral in mediation of nutrient cycling, bioturbation, and biostabilization of sediments. Due to their rapid generation times and metabolism, they can also provide insight into disturbances, whether the source be anthropogenic or natural, on small time scales. In order to identify variation in community structure it is crucial that an understanding of the impact of environmental fluctuation be ascertained. Here we utilized eDNA metabarcoding of the 16S and 18S genes to analyze the microbial and meiofaunal community structure of sites exhibiting differing near-bottom flow speeds as determined by a novel model of hydrodynamic conditions along the West Florida Escarpment in the Gulf of Mexico. We separated the sample sites into current regime groups based on the fifty percentile and maximum speed outputs of modelled conditions. Cores from each location were further categorized based on depth in the sediment. Community structure was significantly different between sediment depth layers; however, no significant variation in structure was observed for either gene based on the current regime group using either modelled speed output. Composition and richness did fluctuate amongst sites and treatments with varying significance. Our results yield new insight into the structure of microbial and meiofaunal assemblages in the deep-sea and suggest that a more comprehensive strategy is required to elucidate patterns of infaunal community structure.
NOTE (Submitted Note): A Thesis submitted to the Department of Earth, Ocean and Atmospheric Science in partial fulfillment of the requirements for the degree of Master of Science.
NOTE (Date of Defense): June 30, 2022.
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Amy Baco-Taylor, Professor Directing Thesis; Jeroen Ingels, Committee Member; Sandra Brooke, Committee Member; Darin Rokyta, Committee Member.
SUBJECT: Marine biology
DEGREE: Masters
FILENAME: Bridges_fsu_0071N_17350.pdf
TITLE: Inability of Glycine to Prevent Alcohol-Induced Anabolic Resistance to Refeeding
AUTHOR: Bridges, Blake,
MEMBER (professor directing thesis): Steiner, Jennifer L.
MEMBER (professor directing thesis): Steiner, Jennifer L.
MEMBER (committee member): Ormsbee, Michael J.
MEMBER (committee member): Laitano, Orlando
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Health and Human Sciences
CORPORATE NAME: Department of Nutrition and Integrative Physiology
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (55 pages)
ABSTRACT: Alcoholic myopathy is a wasting condition that effects skeletal muscle mass. One factor that may contribute to alcoholic myopathy is anabolic resistance which is induced by alcohol intake and leads to a suppression of protein synthesis following an anabolic stimulus. The purpose of this study was to assess the effects of glycine in a model of acute alcohol consumption and its ability to alter the anabolic resistant state induced by alcohol. The purpose of aim 1 was to establish whether refeeding significantly altered protein synthesis and components of the mTORC1 pathway when alcohol and or glycine was consumed It was hypothesized that there would be a refeeding affect and the treatment groups with EtOH present in the diet would not show increased signaling in protein synthesis or components of the mTORC1 pathway. To accomplish this, female mice were split into five treatment groups including Control-Fasted, Control-Refed, EtOH-Refed, Control-Refed+Glycine, and EtOH+Refed+Glycine. The Refed groups were fasted for 16 hours during the light cycle and provided food after the fast for 30 minutes. After 30 minutes of refeeding, food was removed and tissue collection of the Gastrocnemius occurred 30 minutes after the removal of food. Proteins and mRNA of the gastrocnemius were analyzed using Western blotting and RT-PCR techniques. A refeeding affect was found for mTORC1 substrates rpS6 S240/244 and Akt T308 in the Control-Refed group compared to the Control-Fasted group. The second aim of the study was to determine whether glycine would be able to prevent EtOH induced anabolic resistance. We hypothesized that glycine would diminish the effects of EtOH and restore levels of protein synthesis and mTOR1 signaling associated with refeeding that are reduced by alcohol. The same treatment groups were used as Aim 1 excluding the Control-Fasted group. Puromycin used to express protein synthesis, 4E-BP1 S65, and Akt T308 were reduced in the EtOH-glycine-refed group compared to the Control-Refed treatment group. A main effect of alcohol for reducing mTOR S2448, S6K1 T389, rpS6 240/244, and ULK1 S757 was also found, while glycine did not offset this effect. Therefore, glycine is an ineffective method of abating the anabolic resistant state induced through the consumption of alcohol.
NOTE (Submitted Note): A Thesis submitted to the Department of Nutrition and Integrative Physiology in partial fulfillment of the requirements for the degree of Master of Science.
NOTE (Date of Defense): June 10, 2022.
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Jennifer Steiner, Professor Directing Thesis; Michael Ormsbee, Committee Member; Orlando Laitano, Committee Member.
SUBJECT: Physiology
DEGREE: Masters
FILENAME: Brunick_fsu_0071E_17425.pdf
TITLE: Effects of Auditory Experience on Neural Pathways and Vocal-Motor Output
AUTHOR: Brunick, Amanda J.,
MEMBER (professor directing dissertation): Hyson, Richard Lee
MEMBER (university representative): Morris, Richard Jack, 1950-
MEMBER (committee member): Johnson, Frank, (Professor of Psychology)
MEMBER (committee member): Bertram, R. (Richard)
MEMBER (committee member): Kaschak, Michael P.
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Arts and Sciences
CORPORATE NAME: Department of Psychology
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (86 pages)
ABSTRACT: Speech production is a learned behavior requiring sensorimotor integration. For humans and other species that produce learned vocalizations, an individual must be exposed to sufficient auditory input, typically early in development. Then, a progression through a series of sensorimotor learning phases occurs to produce patterned vocalizations. Lack of or a reduction in auditory input can delay or permanently impair an individual's ability to accurately produce vocalizations. This effect is seen in both humans and in other species, including songbirds. Male zebra finches, but not females, learn to sing a stereotyped song by adulthood based on early auditory experience and require sensory feedback to maintain it. If juveniles do not receive sufficient song exposure, then they will not produce a stereotyped one as adults. This suggests that the neural network controlling song production is affected by auditory experience. There are several ways that this could happen, but two potential options are through altering the activity and organization of neurons in nuclei that modulate vocalizations. Auditory input could alter the activity of individual neurons, subsequently affecting activation patterns generated within a nucleus. Alternatively, it could affect the ability to propagate information between cells by acting on their physical constraints (morphology). If sufficient tutoring is necessary for song production, then the effects of it on neurons in the premotor nucleus HVC should occur during song learning. The results suggest that auditory experience affects cell physiology in both singing and non-singing birds. Additionally, there are sex differences in both cell physiology and morphology, to differing degrees. Since auditory experience affects premotor neurons in developing birds, then it is possible that it could have an effect in older birds that have already learned their song. One way to assess the role of auditory experience is by examining song deterioration following loss of auditory input. This deafening-induced song deterioration, which is seen in both birds and humans, demonstrates that proper auditory feedback is necessary to maintain previously learned vocalizations. Spectral and temporal song degradation are dependent on the structure of the original song, age at deafening, and amount of singing experience. More song practice and older age have a protective effect against deterioration.
NOTE (Submitted Note): A Dissertation submitted to the Department of Psychology in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): July 7, 2022.
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Richard Hyson, Professor Directing Dissertation; Richard Morris, University Representative; Frank Johnson, Committee Member; Richard Bertram, Committee Member; Michael Kaschak, Committee Member.
SUBJECT: Neurosciences
SUBJECT: Neurosciences
DEGREE: Doctoral
FILENAME: Cai_fsu_0071E_17279.pdf
TITLE: Two Topics in Deep Learning Based Dialogue Systems
AUTHOR: Cai, Jinglun,
MEMBER (professor co-directing dissertation): Liu, Xiuwen, 1966-
MEMBER (professor co-directing dissertation): Kercheval, Alec N.
MEMBER (university representative): Barbu, Adrian G., 1971-
MEMBER (committee member): Hurdal, Monica K.
MEMBER (committee member): Zhu, Lingjiong
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Arts and Sciences
CORPORATE NAME: Department of Mathematics
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (82 pages)
ABSTRACT: Building more intelligent and more resourceful dialogue systems has been a long sought-after goal in Artificial Intelligence and Natural Language Processing. In this dissertation, we investigate two topics in deep learning based dialogue systems: Leveraging Knowledge Graph (KG) in Query Rewriting (QR), and balancing multi-domain corpora in response generation. Query rewriting is a critical component in dialogue systems to reduce frictions caused by systematic errors or user ambiguity. When there is an entity error, it imposes extra difficulties for a dialogue system to produce satisfactory interpretation. Knowledge Graph information can be beneficial for query rewriting, as common queries for dialogue systems are often related to external knowledge like celebrity names, artworks names, and locations. In this dissertation, we investigate how to incorporate knowledge graph for query rewriting. In particular, we study knowledge graph based entity retrieval in query rewriting. We utilize neural encoders to produce utterance/entity embeddings, and similarity search for entity retrieval. We incorporate KG to provide graph structural information (neighboring entities in KG encoded by Graph Neural Network) and textual information (KG entity descriptions encoded by RoBERTa). Experimental results show that both hard negative sampling and incorporation of knowledge graph consistently improve retrieval precision on all test sets. We observe large performance gain from utilizing KG on few-shot test entities. This shows that external knowledge information is particularly beneficial for dealing with rarely seen cases. Open-domain conversational systems are assumed to generate good responses on multiple domains. Previous work achieved good performance on a single corpus, but combining multiple corpora from different domains is less studied. In this dissertation, we explore methods that deal with multi-domain corpora. We first investigate interleaved learning which intermingles multiple corpora as the baseline. We then investigate two multi-domain learning methods, labeled learning and multi-task labeled learning, which encode each corpus through a unique embedding. Furthermore, we propose Domain-specific Frequency (DF), a novel word-level importance weight that measures the relative importance of a word in a specific corpus compared to multiple corpora. Based on DF, we propose weighted learning, a method that integrates DF to the loss function, and we also adopt DF as a new evaluation metric. Extensive experiments show that our methods gain significant improvements on both automatic and human evaluation. We share our code and data for reproducibility. Our main contributions are the following: 1. We propose a knowledge graph enhanced system for query rewriting, leveraging both graph neighbor information and entity textual description. 2. We propose labeled learning and multi-task labeled learning for open domain, and show these two methods achieve significant improvements on automatic and human evaluation.
NOTE (Submitted Note): A Dissertation submitted to the Department of Mathematics in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): May 31, 2022.
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Xiuwen Liu, Professor Co-Directing Dissertation; Alec Kercheval, Professor Co-Directing Dissertation; Adrian Barbu, University Representative; Monica Hurdal, Committee Member; Lingjiong Zhu, Committee Member.
SUBJECT: Computer science
SUBJECT: Mathematics
SUBJECT: Language and languages
DEGREE: Doctoral
FILENAME: Carstens_fsu_0071E_17266.pdf
TITLE: The Sensitivity of Convective Self-Aggregation and Tropical Cyclogenesis to Planetary Rotation
AUTHOR: Carstens, Jacob D.,
MEMBER (professor directing dissertation): Wing, Allison
MEMBER (university representative): Elsner, James B.
MEMBER (committee member): Hart, Robert E. (Robert Edward), 1972-
MEMBER (committee member): Chagnon, Jeffrey M.
MEMBER (committee member): Bourassa, Mark Allan
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Arts and Sciences
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (160 pages)
ABSTRACT: Interactions between clouds, water vapor, radiation, and circulation influence the organization of tropical convection, and the development of tropical cyclones (TCs). This includes the self-aggregation (SA) of convection in idealized models, in which a random distribution of clouds spontaneously transitions to coherent moist convective clusters, surrounded by dry air. The resulting organized convection may exist in several modes, including TCs when rotation is introduced. This suggests that SA, and the relative roles of the mechanisms that cause it, change with the strength of the background rotation (f). This hypothesis is addressed using a hierarchy of cloud-resolving model simulations. 31 f-plane simulations correspond to latitudes between 0.1°-20°N, simulating a range of tropical and near-equatorial environments largely unexplored in prior literature. Five β-plane experiments are also developed to study co-existent TCs, SA, and equatorial waves in a large, more realistic domain. In particular, these simulations allow the isolation of specific feedbacks contributing to SA, how these change with f, and the fundamental physics behind spontaneous TC genesis when convection is allowed to operate freely. Simulations on the f-plane show that SA depends strongly on the background rotation. Under weak rotation (≤ 5°N), radiative feedbacks dominate in organizing convection into one coherent cluster. In cases where this cluster takes a circular shape, a weak TC subsequently forms following a ``bottom-up'' pathway, aided by low-level convergence from a large-scale overturning circulation. In β-plane simulations, equatorial organized convection is dominated by spontaneous Kelvin and equatorial Rossby waves. Under stronger rotation, SA only exists in the form of TCs. This occurs if surface enthalpy flux feedbacks can offset the negative feedback from advective processes. Upon TC genesis from an initial mid-level vortex, drying subsequently takes place elsewhere. In between these two well-defined regimes, SA fails to fully take place. Finally, 20°N f-plane simulations are used to test how a limited set of observations captures moist static energy (MSE) variability around TCs. This is done to assess if radiative and surface flux feedbacks can reasonably be quantified in real TCs. Various patterns of grid points are developed to resemble dropsonde launch points in aircraft reconnaissance flight patterns. This work reveals that the TC's mid- and upper-level warm core contributes significantly to MSE variance, and that estimates of MSE variance and feedbacks are sensitive to the radial distribution of dropsondes.
NOTE (Submitted Note): A Dissertation submitted to the in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): June 6, 2022.
NOTE (Keywords): Cloud-radiation processes, Convection, Idealized modeling, Tropical cyclones
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Allison A. Wing, Professor Directing Dissertation; James B. Elsner, University Representative; Robert E. Hart, Committee Member; Jeffrey M. Chagnon, Committee Member; Mark A. Bourassa, Committee Member.
SUBJECT: Meteorology
SUBJECT: Atmospheric sciences
DEGREE: Doctoral
FILENAME: Challenger_fsu_0071E_17321.pdf
TITLE: Printing the Cosmos: Images, Readers, and Mathematics in Peter Apian's Instrumental Texts
AUTHOR: Challenger, Alexandra Marie,
MEMBER (professor directing dissertation): Leitch, Stephanie
MEMBER (university representative): Weber, Christian
MEMBER (committee member): Niell, Paul B., 1976-
MEMBER (committee member): Loic, Erika
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Fine Arts
CORPORATE NAME: Department of Art History
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (224 pages)
ABSTRACT: This dissertation addresses the printed works of mathematician, Peter Apian (1495-1552). A prolific writer and scholar, Apian produced works on a range of subjects including astronomy, cosmography, and instrumentation which were noteworthy for their extensive use of illustrations and interactive paper instruments which could be manipulated within the space of the book or even removed to function as instruments when pasted onto wooden supports. Apian's creative use of print technology to develop new types of illustrations and instruments was tied to his position as both a scholar of mathematics and his role as a printer, granting him access to both the technical and intellectual sides of his field of mathematics. The novelty of his publications not only expanded the readership for practical mathematical subjects but also demonstrated the importance of images and instruments in encouraging observational practices during the early modern period. Because of this, Apian's works represent an ideal way of understanding the nature of scientific innovation during the sixteenth century and the factors that influenced creative new achievements in print. Apian's innovations in instrument manufacture and dissemination brought different types of practical tools to a wider readership and positioned observational practice as a critical part of knowledge making. By examining Apian's readership, his ideas about instrumentation in mathematics, and his relations with patrons, this dissertation demonstrates the complex social networks at play in the burgeoning community of science as well as the role of images in fostering new connections between ideas and readers.
NOTE (Submitted Note): A Dissertation submitted to the Department of Art History in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): June 6, 2022.
NOTE (Keywords): history of print, scientific illustration, scientific instrument
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Stephanie Leitch, Professor Directing Dissertation; Christian Weber, University Representative; Paul B. Niell, Committee Member; Erika Loic, Committee Member.
SUBJECT: Art--History
SUBJECT: Europe--History
SUBJECT: History
DEGREE: Doctoral
FILENAME: Chen_fsu_0071E_17354.pdf
TITLE: Neoliberal Globalization and Mediated Sport Fandom: A Study of Chinese Distant Fans
AUTHOR: Chen, Zhenyan,
MEMBER (professor directing dissertation): Newman, Joshua I., 1976-
MEMBER (university representative): Eccles, David W.
MEMBER (committee member): James, Jeffrey D. (Jeffrey Dalton)
MEMBER (committee member): Du, James
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Education
CORPORATE NAME: Department of Sport Management
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (249 pages)
ABSTRACT: The intensified process of globalization has reconfigured the formation and composition of sport fandom, which was—for a long period of time throughout history—rooted in local social practices and identities. With advances in telecommunication technology, today, many people follow, support, and identify with sport teams at a distance; they become 'distant sport fans.' In this project, I seek to understand the formation of distant sport fandom. Research pertaining to sport fandom has been generally conducted from two decoupled perspectives, yet complicit in studying local sport fans. Sport marketing scholars have focused on the psychological connection between fans and a sport team. While meaningfully theorizing the formation of fan's identification towards a sport team, this approach can be bolstered by accounting for some important nuances that are situated in the context of sport fandom. Conversely, researchers of sport sociology have recognized the context that has made the contemporary fan identity a consumer identity in nature. However, many sociologists have not studied how, at the individual level, a fan identity is formed. This project marks an attempt to integrate these different fields of inquiry in presenting a more complex understanding of sport fandom and the formation of fan identity in the age of neoliberal globalization. Specifically, drawing upon theoretical perspectives that seek to explore the historically-specific conjunctures of what is often referred to as the 'neoliberal condition,' I aim to understand how structural forces shape the processes through which distant fan identities are formed. Upon reviewing the relevant literature, I believe mediation is an important concept for us to deconstruct and understand how our daily experiences, ways of perceiving, and social relations are deeply embedded within the advanced capitalist mode of production as we continue living our lives in a mass-mediated world or the "spectacle" in Guy Debord's (2014) words. In this project, I chose to focus on the case of Chinese distant soccer fans. By interviewing some Chinese distant fans of Bayern Munich within a certain local context, such an inquiry allowed me to highlight the importance of context in studying sport fandom, while also taking an individual's psychological connection to a distant sport team into consideration. Based on the online semi-structured interviews conducted, I discovered that, since distant fans rely on contextualized media outlets as their major access to a foreign sport team, they are likely to form their connection to a distant team based on some unique team objects, differing from the previously studied local fans. Sport fandom is contextualized in a particular local setting when distant fans' experiences with a team are mediated by global (the team itself and the foreign sponsors of a team) and local mediators (the domestic sponsors of a team, fans' social relations, streaming companies within a local context, and the local government) across the global-local conjunctures. To further complicate the scenario, fans' experiences with a team can also be mediated by the interplay between global and local mediation, leading to their unique meaning-making of a distant sport team within a certain local context. For instance, some Chinese distant fans believed that their favorite soccer team should stay away from the political sphere so that the team would not be banned by the Chinese government; this meaning-making interestingly differs from how local fans usually make sense of a sport team now in the west. The profound schematics of mediation then lead us to consider the extent to which structural forces can shape the ways through which distant fandom is formed in the contemporary era of neoliberalization. My project implicates that the expansion of the global soccer industry and China's neoliberalization may constitute the growth of distant fandom in the context of China. Through new ways of media production, soccer culture has been disseminated primarily for the purpose of establishing a sport consumer's attachment to a team. In the context of China, the global expansion of the soccer industry leads to the formation of new fan communities with some Chinese characteristics. Distant fandom can also be regarded as a neoliberal project that has been created alongside China's economic opening-up. By identifying with a distant sport team, distant fans in China not only respond to but also carry forth the aforementioned structural forces, perpetuating and reproducing the further global and local progression of neoliberalization. In these ways, I explicated how individuals become distant spectators and how that process of identification might lead to different perceptions, intentions, and identities from the previously researched local fans.
NOTE (Submitted Note): A Dissertation submitted to the Department of Sport Management in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): May 24, 2022.
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Joshua I. Newman, Professor Directing Dissertation; David W. Eccles, University Representative; Jeffrey D. James, Committee Member; James Du, Committee Member.
SUBJECT: Sports administration
DEGREE: Doctoral
FILENAME: Chen_fsu_0071E_17360.pdf
TITLE: Elastic Function Registration Using Deep Neural Networks
AUTHOR: Chen, Chao,
MEMBER (professor directing dissertation): Srivastava, Anuj, 1968-
MEMBER (university representative): Liu, Xiuwen, 1966-
MEMBER (committee member): Barbu, Adrian G., 1971-
MEMBER (committee member): Wu, Wei
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Arts and Sciences
CORPORATE NAME: Department of Statistics
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (81 pages)
ABSTRACT: Registration often plays a critical role in many fields, including but not limited to computer vision,shape analysis, and human activity recognition. Curves and times series data usually present a sort of misalignment, and it impedes a model from revealing a pattern of a given data set, which results in misleading performance in terms of tasks such as classification, clustering, etc. A successful alignment algorithm can better preserve the main structure of given functions and lead to an efficient model to capture the primary source of data variability. This essay presents a novel functional registration framework: Square-Root Velocity Function Registration Net(SrvfRegNet). SrvfRegNet architecture trains by optimizing the elastic metricbased objective function on the training data and then applies this trained network to the test data to perform fast registration. In case the training and the test data are from different classes, it generalizes to the test data using transfer learning, i.e., retraining of only the last few layers of the network. We demonstrate the efficiency and efficacy of this framework using several standard curve datasets. The second approach is Elastic Registration Net (ElasticRegNet)). Both methods share all properties that the SrvfRegNet holds, but it can align data sharply using different smoothing operations. Furthermore, the theElasticRegNet is more suited to transfer learning in registration given its light architecture. The last model is Residual SRVF Net (ReSRVFNet), which is designed for aligning large datasets. ReSRVFNet can make high-quality alignment on massive datasets that the traditional dynamic programming algorithm (DPA) cannot process efficiently. Also, we combine the alignment concept with classification models to boost classification significantly. We demonstrate this integrated approach with multiple real-world datasets.
NOTE (Submitted Note): A Dissertation submitted to the Department of Statistics in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): June 24, 2022.
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Anuj Srivastava, Professor Directing Dissertation; Xiuwen Liu, University Representative; Adrian Barbu, Committee Member; Wei Wu, Committee Member.
SUBJECT: Statistics
DEGREE: Doctoral
FILENAME: Chia_fsu_0071E_17272.pdf
TITLE: It's Not You, It's Me: Some Experimenters Elicit More Priming than Others
AUTHOR: Chia, Katherine,
MEMBER (professor directing dissertation): Kaschak, Michael P.
MEMBER (university representative): Lansford, Katlin L.
MEMBER (committee member): Boot, Walter Richard
MEMBER (committee member): Hart, Sara, (Professor of Psychology)
MEMBER (committee member): Kelley, Colleen M.
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Arts and Sciences
CORPORATE NAME: Department of Psychology
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (71 pages)
ABSTRACT: Linguistic alignment is a well-documented phenomenon that describes the act of adjusting your speech to match your partner's. This can take various forms – by changing your tone, pitch, speech rate, or even the types of words each speaker uses. Although linguistic alignment is established, the nuances regarding alignment are less so. For example, do some speakers adapt to others more than the general population? Further, are there some people who elicit the adaptations very broadly? The focus of my dissertation was to establish adaptation in naturalistic speech and then explore the factors that affect the alignment. Experimenters in my study called businesses and asked, either At/What time do you close? There are two main findings from this dissertation. First, I demonstrated a structural priming effect (e.g., participants who were asked prepositional questions were more likely to respond using a preposition). Second, some speakers elicited stronger priming (alignment) than others, and this effect was reliable across time. My dissertation suggests individual differences in speakers may exist that can affect linguistic alignment in naturalistic speech.
NOTE (Submitted Note): A Dissertation submitted to the Department of Psychology in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): May 24, 2022.
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Michael P. Kaschak, Professor Directing Dissertation; Kaitlin L. Lansford, University Representative; Walter R. Boot, Committee Member; Sara Hart, Committee Member; Colleen M. Kelley, Committee Member.
SUBJECT: Cognitive psychology
DEGREE: Doctoral
FILENAME: CHOI_fsu_0071E_17385.pdf
TITLE: Situational Motivation and Participation in Online Discussion: A Multiple Case Study
AUTHOR: Choi, Ha Jeen,
MEMBER (professor directing dissertation): Dennen, Vanessa P., 1970-
MEMBER (university representative): Rutledge, Stacey A.
MEMBER (committee member): Staudt Willet, K. Bret
MEMBER (committee member): Klein, James D.
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Education
CORPORATE NAME: Department of Educational Psychology and Learning Systems
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (273 pages)
ABSTRACT: This qualitative case study explored how course context, such as course design, facilitation, and community, supports students' basic psychological needs and thus shapes their situational motivation to participate in asynchronous online discussions in different course contexts. Three upper-level undergraduate courses in different disciplines were investigated. All three courses were fully online courses and utilized asynchronous online discussion as one of the regular class activities. However, most students were on-campus students who took online courses for flexibility. There were a few distance learners in one of the courses. This study was conducted in a natural setting without any intervention to control the course events. Instead, interview, participation diaries, discussion archives, and surveys were used to collect data. For each course, four to six students participated in the interviews and created participation diaries. The instructors and the TAs were also invited to be interviewed before and after the five weeks of discussions. Each course was analyzed separately to obtain individual findings within a specific course context including course design, facilitation, and community. Each course used a different approach for the weekly discussion activities. The first case used project-based discussion, the second case used topic-based discussion, and the third case used problem-based discussion. For these tasks with different discussion designs, facilitation strategies, and peer interaction, students from each case shared different perspectives regarding their satisfaction of needs and situational motivation to participate in online discussions actively and passively. A cross-case comparison provided a local theory and implications regarding instructional design to maximize students' situational motivation to participate in online discussions. When students' basic needs for autonomy, competence, and relatedness were met, the quality of participation increased because students exerted more effort and time into writing quality posts. The increased quality of posts enhanced students' passive participation to learn more from others. Their basic needs were primarily supported by the discussion design and instructor's facilitation. However, students' participation is extrinsic in general because they have to participate both actively and passively to meet the requirements. Therefore, both the quantity and quality of participation can be shaped through situational motivation generated by the discussion design and instructor facilitation. When a course is challenging, the need for competence through the instructor's guidance and support increases, and the need for relatedness to help each other elevate their competence also increases. Although situational motivation within the course context is critical, students' motivation to participate resulted from the interplay between personal traits and environmental factors within the course context. This means that different types of motivations interplay at various levels and generate students' motivation to participate both actively and passively. For example, when students' basic needs were met, students' personal goal orientation became salient because some students needed more justification for extra effort. When a course is difficult, students' self-regulation skills or prior knowledge become a critical factor in their active participation and satisfaction. Overall, this case study added to previous findings about course design factors affecting participation by answering the "how" question instead of the "what" question which was the focus of most previous studies. This study also provided some answers about the "reasons" behind the intertwined relationships between the course elements, needs satisfaction, and learner motivation instead of focusing on the relationships themselves.
NOTE (Submitted Note): A Dissertation submitted to the Department of Educational Psychology and Learning Systems in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): June 22, 2022.
NOTE (Keywords): asynchronous online discussion, engagement, online learning, participation, self-determination theory, situational motivation
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Vanessa P. Dennen, Professor Directing Dissertation; Stacy A. Rutledge, University Representative; K. Bret Staudt Willet, Committee Member; James D. Klein, Committee Member.
SUBJECT: Educational technology
SUBJECT: Instructional systems--Design
SUBJECT: Educational psychology
DEGREE: Doctoral
FILENAME: Choi_fsu_0071E_17395.pdf
TITLE: An Evaluation of the Effectiveness of Christian Schooling in Terms of Academic Contingent Self-Worth
AUTHOR: Choi, Kyoung-Jun,
MEMBER (professor directing dissertation): Herrington, Carolyn D.
MEMBER (university representative): Levenson, David B.
MEMBER (committee member): Milligan, Jeffrey Ayala
MEMBER (committee member): Perez-Felkner, Lara
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Education
CORPORATE NAME: Department of Educational Leadership and Policy Studies
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (120 pages)
ABSTRACT: The primary goal of this dissertation is to theoretically propose an indicator that captures the effectiveness of Christian, both conservative Christian and Catholic, schooling on students' religious socialization in the academic domain and to empirically evaluate the effectiveness of Christian schooling using the indicator. In spite of the fact that Christian schooling has been ultimately intended for students' academic development and religious socialization simultaneously and the two aims are so closely connected, there has been little systematic effort to evaluate the effectiveness of Christian schooling by focusing on religious significances of academic development. As an effort to fill in the gap in the literature, this study suggests a normative expectation that if Christian schooling is effective, then Christian school students would form weaker academic contingent self-worth than public school students; then, in order to test whether the normative expectation is empirically supported, an ordinary least squares regression with dummy interaction terms and a two-way analysis of variance combined with the inverse probability of treatment weighting were respectively conducted using the datasets of the National Education Longitudinal Study of 1988. As a result, it was found that there is no empirical evidence to confirm the normative expectation for Christian schooling, which is, in turn, led to the provisional conclusion that at least during the late 1980s and early 1990s, Christian schooling may not have been effective in leading students to internalize religious significances of academic development. Based on the conclusion, several implications are suggested including the need to revisit the practices of Christian school teachers and administrators. Finally, suggestions for future research are discussed.
NOTE (Submitted Note): A Dissertation submitted to the Department of Educational Leadership and Policy Studies in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): July 5, 2022.
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Carolyn D. Herrington, Professor Directing Dissertation; David B. Levenson, University Representative; Jeffrey A. Milligan, Committee Member; Lara C. Perez-Felkner, Committee Member.
SUBJECT: Educational evaluation
SUBJECT: Religious education
DEGREE: Doctoral
FILENAME: Chowdhury_fsu_0071E_17307.pdf
TITLE: Path Planning Algorithms for Autonomous Vehicles
AUTHOR: Chowdhury, Mohammad Imran,
MEMBER (professor directing dissertation): Schwartz, Daniel G.
MEMBER (university representative): Ahlquist, Jon E.
MEMBER (committee member): Burmester, Mike
MEMBER (committee member): Mascagni, Michael
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Arts and Sciences
CORPORATE NAME: Department of Computer Science
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (142 pages)
ABSTRACT: In real-world mission planning, the environment can be quite complex, and a path planner has thepotential to enable an agent to fulfill its goals in spite of unanticipated events and unexpected situations. A sound path planner defines a path starting from a source point and arriving ultimately at a goal point. The path planning algorithms for autonomous vehicles (AVs) are broadly categorized into two sub-areas: global path planning and local path planning. A global path planner employs known information about the operational environment to return a path from the start point to the goal while avoiding fixed obstacles. Here obstacles are static, such as islands, docks, ship wrecks, etc. The path is determined prior to the AV's departure. In contrast, a local path planner recalculates the path returned by the global path planner as needed to avoid unexpected moving obstacles such as ships, boats, swimmers, other AVs, etc. This work initially addresses these issues by working on the most commonly used node-basedA* algorithm and the sampling-based probabilistic road map (PRM) algorithm. The work has found that the A* algorithm successfully avoids fixed obstacles, but the path is not smooth (makes very sharp turns) and sometimes comes dangerously close to the obstacle being avoided. An issue with the PRM algorithm is that the generated path often is not always optimal, i.e., may be much longer than necessary to avoid the given obstacles. Hence, initially, the work has combined these two approaches in such a way that these deficiencies are remedied. In particular, the computed path is both smooth and close to optimal. In addition, this work further improves the PRM-A* algorithm to maintain a safe distance from fixed obstacles. The work subsequently adopted as an alternative the deterministic (non-heuristic) Grassfire(GF) algorithm. GF is conceptually simpler than A* and therefore easier to implement. For these reasons, this research explored replacing A* with GF in the hybrid method. In addition, it was found that the PRM algorithm could be simplified by adopting a different method for creating the roadmap. This led to a variant of PRM, here dubbed the recursive probabilistic road map (r-PRM). This is conceptually simpler than the original PRM and typically is faster. Accordingly, this later work presents a novel global planner that employs a combination of three path planners: GF, Modified Grassfire (MGF), and r-PRM. This combination is guaranteed to find a path from any given start point to any given goal point, as long as such a path is possible. For dealing with the moving obstacles, this work first discusses a local path planner using anadaptation of the global path planning algorithm PRM-A*. It was proposed that this employ the points randomly generated by PRM to construct a path around the moving obstacle. However, it was found this has the drawback that relying on such points can lead to somewhat erratic behavior. Thus this was replaced with a deterministic, geometrical approach that achieves the desired effect in a more reliable manner. This local planner together with the later global path planner provide a comprehensive path planning system. The research has explored the prospect of implementing these algorithms in the well-knownMOOS-IvP simulation environment. PRM-A* has been ported to MOOS-IvP, thus enabling one to simulate the use of that planner in controlling an AV in a realistic mission environment. This applies only to the global planner, however, inasmuch as MOOS-IvP does not support simulation of the local planner. An important feature of the local planner is that it employs a decision logic to determine the beststrategy for avoiding a moving obstacle, in particular, always routing the AV behind the obstacle rather than in front of or parallel to it, whenever this is appropriate. Simulations are provided exhibiting the acclaimed behavior. For comparison with other systems, the simulations include an implementation of the well-known D* algorithm, and the discussion considers additional dynamic path planning systems, which, like D*, do not necessarily route the AV behind the moving obstacle.
NOTE (Submitted Note): A Dissertation submitted to the Department of Computer Science in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): June 27, 2022.
NOTE (Keywords): Autonomous Vehicles (AVs), Path Planning Algorithms
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Daniel G. Schwartz, Professor Directing Dissertation; Jon E. Ahlquist, University Representative; Michael V. D Burmester, Committee Member; Michael Vincent Mascagni, Committee Member.
SUBJECT: Computer science
DEGREE: Doctoral
FILENAME: Ciappetta_fsu_0071E_17106.pdf
TITLE: Toward a Growth Mindset Pedagogy in an ESL Classroom: A Case Study of an Intervention for the Language Learning Plateau
AUTHOR: Ciappetta, Felicia A.,
MEMBER (professor directing dissertation): Jakubowski, Elizabeth M.
MEMBER (university representative): Sunderman, Gretchen L.
MEMBER (committee member): Southerland, Sherry A., 1962-
MEMBER (committee member): Li, Shaofeng
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Education
CORPORATE NAME: School of Teacher Education
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (175 pages)
ABSTRACT: The aim of this study was to explore the experiences of international-student English language learners (ELLs), situated on a language learning plateau (L2P), who have been exposed to a Growth Mindset Pedagogy with Deliberate Practice. The researcher used a qualitative research design, to document the experiences of five adult English language learners enrolled in an intermediate level composition course at a university-based Intensive English Program (IEP) in the southeastern region of the United States. The study investigated how a Growth Mindset Pedagogy with Deliberate Practice may facilitate growth language mindsets and propel movement beyond L2 plateaus. The findings from this study revealed that a Growth Mindset Pedagogy with Deliberate Practice can facilitate growth language mindsets by fostering challenges through which learners build persistence and experiment with strategies to achieve L2 acquisition. Additionally, Growth Mindset Pedagogy with Deliberate Practice can facilitate movement beyond L2 plateaus by raising learners' consciousness and providing targeted learning strategies to practice and receive feedback.
NOTE (Submitted Note): A Dissertation submitted to the School of Teacher Education in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): April 4, 2022.
NOTE (Keywords): Deliberate Practice, ESL, Growth Mindset, Language Learning Plateau, SLA, TESOL
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Elizabeth Jakubowski, Professor Directing Dissertation; Gretchen Sunderman, University Representative; Sherry Southerland, Committee Member; Shaofeng Li, Committee Member.
SUBJECT: English language--Study and teaching--Foreign speakers
SUBJECT: Linguistics
DEGREE: Doctoral
FILENAME: Clancy_fsu_0071E_16731.pdf
TITLE: Evaluating Alpha Dysrhythmia across the Sensory Cortex and Default Mode Network as a Novel Neuropathophysiological Mechanism of and Therapeutic Target for Posttraumatic Stress Symptoms
AUTHOR: Clancy, Kevin J.,
MEMBER (professor directing dissertation): Li, Wen, (Professor of Psychology)
MEMBER (university representative): Fadool, Debra Ann
MEMBER (committee member): Eckel, Lisa A.
MEMBER (committee member): Sachs-Ericsson, Natalie J.
MEMBER (committee member): Schmidt, Norman B.
MEMBER (committee member): Cougle, Jesse R. (Jesse Ray), 1975-
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Arts and Sciences
CORPORATE NAME: Department of Psychology
PUBLICATION: Tallahassee, Florida: Florida State University, 2021
PHYSICAL DESCRIPTION: 1 online resource (218 pages)
ABSTRACT: Prevailing neurobiological models of posttraumatic stress disorder (PTSD) have focused on dysfunctions of a prefrontal-cortex-amygdala-hippocampal circuit in the top-down regulation of threat detection and emotion regulation. Nevertheless, evidence is accruing for a pathology in broad, low-level sensory hyperactivity that accounts for the unique sensory features of posttraumatic stress symptoms (PTSS). We have thus proposed a "sensory model" of PTSD, centered on deficient sensory gating and broad sensory hyperactivity. The neurophysiology of the model rests on "sensory disinhibition", whereby disinhibited sensory processing allows for unfiltered sensory input to inundate the prefrontal cortex, even at rest, and the consequent prefrontal dysfunction further fuel sensory disinhibition, resulting in a vicious cycle to perpetuate PTSD pathology. Combining neuroimaging (functional magnetic resonance imaging/fMRI and electroencephalogram/EEG) and non-invasive brain stimulation, this dissertation conducted a series of five studies to test this sensory model and develop an intervention to enhance sensory inhibition. Study 1 (Chapter 2) revealed that resting-state (intrinsic) alpha (8-12 Hz) oscillations, a key neural process involved in sensory cortical inhibition and sensory gating, were deficient among patients with PTSD, the degree of which varied with PTSD symptom severity. These findings indicate intrinsic sensory disinhibition in PTSD. Study 2 (Chapter 3) replicated the initial findings in a sample of combat-exposed Veterans, particularly highlighting an association between alpha deficiency and symptoms of intrusive re-experiencing of trauma. Importantly, akin to our sensory model, it demonstrated that sensory disinhibition could contribute to intrusive reexperiencing through the activation of trauma memory via sensory cues. Study 3 (Chapter 4) isolated PTSD-related alpha deficits in the visual cortex and the default mode network (DMN), a key large-scale intrinsic neural network, as well as communication between the visual and the DMN. These findings thus elucidate a visual-cortex-DMN circuit dysfunction, highlighting that sensory disinhibition can underlie large-scale neural dysregulation in PTSD. Identification of this sensory pathology, which is closely associated with alpha deficiency, motivated Studies 4 and 5 to develop a novel intervention for this pathology by augmenting alpha oscillations. Study 4 (Chapter 5) applied alpha-frequency transcranial alternating current stimulation (i.e., α-tACS) over four consecutive days and demonstrated lasting and reliable alpha enhancement, which was further accompanied by reduction in anxious arousal and sensory aversion. Study 5 (Chapter 6), combining simultaneous EEG-fMRI recordings with α-tACS, not only replicated the efficacy of α-tACS in alpha enhancement but also demonstrated DMN upregulation via α-tACS. Importantly, this DMN upregulation was mediated by alpha enhancement. Together, this series of studies provide converging evidence for the sensory disinhibition model of PTSD and identify a novel mechanism-based intervention that could be used to treat PTSD and related disorders.
NOTE (Submitted Note): A Dissertation submitted to the Department of Psychology in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): June 24, 2021.
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Wen Li, Professor Directing Dissertation; Debra A. Fadool, University Representative; Lisa A. Eckel, Committee Member; Natalie J. Sachs-Ericsson, Committee Member; Norman B. Schmidt, Committee Member; Jesse R. Cougle, Committee Member.
SUBJECT: Clinical psychology
SUBJECT: Neurosciences
SUBJECT: Neurosciences
DEGREE: Doctoral
FILENAME: ClossonPitts_fsu_0071E_17265.pdf
TITLE: Making and (Un)making Queer Womanhood at a Southern University
AUTHOR: Closson-Pitts, Brittany R.,
MEMBER (professor directing dissertation): Khurshid, Ayesha
MEMBER (university representative): Upchurch, Charles, 1969-
MEMBER (committee member): Jones, Tamara Bertrand
MEMBER (committee member): Rutledge, Stacey A.
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Education
CORPORATE NAME: Department of Educational Leadership and Policy Studies
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (321 pages)
ABSTRACT: Postsecondary institutions are viewed as spaces where students can become exposed to different ways of thinking and being beyond their own subjective experiences (Gortmaker & Brown, 2006). Research has suggested that college-going queer women often characterize their universities as places where they can "be themselves" and find their voices as sexual and/or gender minorities (Valentine, Wood, & Plummer, 2009). However, Formby (2017) and Rushbrook (2002) argue that these voices are often homogenized in postsecondary contexts, situating queer womanhood as a singular, universal entity while minimizing the presence of intersectional queer identities on campus (Goldman, 1996; Crenshaw, 1989; Ghabrial, 2016). This ethnographic study seeks to disrupt such narratives of homogeneity by exploring the complexities of queer womanhood at Florida State University, consequently mobilizing the postsecondary institution as a context characterized by simultaneous norms of inclusion and exclusion. This research will situate queer undergraduate women's lived experiences as sites for unpacking the hybridity of campus culture, relying on interviews, focus groups, social media observations, multi-media responses, and photo journals to explore this relationship between the postsecondary context and students' lived experiences and identity construction.
NOTE (Submitted Note): A Dissertation submitted to the Department of Educational Leadership and Policy Studies in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): May 10, 2022.
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Ayesha Khurshid, Professor Directing Dissertation; Charles Upchurch, University Representative; Tamara Bertrand Jones, Committee Member; Stacey Rutledge, Committee Member.
SUBJECT: Education, Higher
SUBJECT: Gender expression
SUBJECT: Gender identity
DEGREE: Doctoral
FILENAME: Cochran_fsu_0071E_17386.pdf
TITLE: Sensitive Spin Detection with Differential DC Squids
AUTHOR: Cochran, Josiah,
MEMBER (professor directing dissertation): Chiorescu, Irinel
MEMBER (university representative): Andrei, Petru
MEMBER (committee member): Xiong, Peng
MEMBER (committee member): Bonesteel, N. E.
MEMBER (committee member): Almaraz-Calderon, Sergio J.
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Arts and Sciences
CORPORATE NAME: Department of Physics
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (138 pages)
ABSTRACT: One of the biggest roadblocks currently in the way of large scale quantum computationis the limited relaxation times of the current state of the art quantum computers. This limitation is due to the use of superconducting qubits, which are large and therefore hard to decouple from the environment. The most promising solution to the scalability problem is the use of molecular spins, which will be the focus of this dissertation. Spins consisting of Gd3+, Mn2+, Eu2+, etc. ions dilute in a non-magnetic matrix display a rich Electron Spin Resonance spectra that is of interest for quantum computation. This dissertation details the background theory of operation of spin based quantum computation and a proposed design for sensitive spin detection. A novel differential DC SQUID readout method is detailed for spin sensing in large magnetic fields. In field sensing is key for maximum sensitivity and miniaturization of the circuitry. Analysis of the noise in the differential readout is performed with some measurements and proposed methods of how to improve sensitivity. Finally an electronic DC-SQUID Emulator is presented which allows for testing DC-SQUID readout electronics.
NOTE (Submitted Note): A Dissertation submitted to the Department of Physics in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): June 22, 2022.
NOTE (Keywords): quantum, spin, SQUID, superconductivity
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Irinel Chiorescu, Professor Directing Dissertation; Petru Andrei, University Representative; Peng Xiong, Committee Member; Nick Bonesteel, Committee Member; Sergio Almaraz-Calderon, Committee Member.
SUBJECT: Condensed matter
SUBJECT: Quantum theory
DEGREE: Doctoral
FILENAME: ConsoliverZack_fsu_0071E_17374.pdf
TITLE: Characterization of the Anisotropic Fracture of Sapphire for Use in High Temperature Pressure Transducers Using Bayesian Uncertainty Methods
AUTHOR: Consoliver-Zack, Jakob,
MEMBER (professor directing dissertation): Oates, William
MEMBER (university representative): Siegrist, Theo
MEMBER (committee member): Hellstrom, Eric
MEMBER (committee member): Krick, Brandon
CORPORATE NAME: Florida State University
CORPORATE NAME: FAMU-FSU College of Engineering
CORPORATE NAME: Department of Mechanical Engineering
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (76 pages)
ABSTRACT: The effects of pico-second pulsed laser ablation on the crystal structure and residual strain of sapphire is investigated using X-ray diffraction and Bayesian uncertainty analysis. Laser machining of sapphire has shown to be a viable manufacturing process to fabricate micron scale sapphire sensor materials for operation in high temperature and chemically corrosive environments. This method has shown to cause significant changes to the material's modulus, strength, and toughness. The specific cause of these changes is hypothesized to be due to residual stress induced in the crystal lattice. This hypothesis is tested using X-ray diffraction coupled with Bayesian uncertainty quantification. The statistical analysis suggests in-plane compressive stresses on the laser-machined surface, which provides a plausible explanation for the observed increased bending strength and fracture toughness. In addition, anisotropic elasticity theory (Stroh's Method) is used in conjunction with the Bayesian methodology to characterize the fracture toughness from Vicker's indentations placed on the C(0001) and A(11-20) crystal planes. Estimates show the definitive presence of anisotropic fracture properties with in-plane energy release rates ranging from 8.66 ± 0.06 Jm^−2 for cracks on the A(11-20) plane to in excess of 16.19 ± 0.46 Jm^−2 for cracks within 10◦ of the M(1-100) plane. We achieve an uncertainty in the crack tip toughness over an order of magnitude lower than estimates from conventional bend-bar fracture studies by using the Bayesian methodology coupled with image processing tools. An additional study consisting of extending this proven methodology to a niobium sapphire interface is also proposed.
NOTE (Submitted Note): A Dissertation submitted to the Mechanical Engineering in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): July 6, 2022.
NOTE (Keywords): Anisotropic Elasticity, Bayesian, Fracture, Sapphire, Uncertainty Quantification, X-ray Diffraction
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): William Oates, Professor Directing Dissertation; Theo Siegrist, University Representative; Eric Hellstrom, Committee Member; Brandon Krick, Committee Member.
SUBJECT: Mechanical engineering
DEGREE: Doctoral
FILENAME: Cooper_fsu_0071E_16938.pdf
TITLE: Concussion, Help Seeking, and Mental Health Outcomes in Collegiate Athletes
AUTHOR: Cooper, Brandon T.,
MEMBER (professor directing dissertation): Becker, Martin Swanbrow
MEMBER (university representative): Newman, Joshua I., 1976-
MEMBER (committee member): Marks, Laura Reid
MEMBER (committee member): Dong, Shengli
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Education
CORPORATE NAME: Department of Educational Psychology and Learning Systems
PUBLICATION: Tallahassee, Florida: Florida State University, 2021
PHYSICAL DESCRIPTION: 1 online resource (216 pages)
ABSTRACT: Recently, there has been an increase in the awareness of sport concussion and its potential deleterious effects as progressively more research has been conducted within the past few decades. Despite this increase, there is much about sport concussion and the consequences of sport concussion that are still unknown. The current study aims to examine the prevalence of sport concussion in NCAA collegiate student athletes. Furthermore, this study seeks to investigate the prevalence of underreporting sport concussions as well as the factors that may lead athletes not to seek help for their concussion. To better understand mental health outcomes that follow sport concussion, this study attempts to understand the potential impact sport concussion has on mental health outcomes of depression and suicide ideation. Altogether, 964 student athletes across all three NCAA divisions were surveyed about their experiences in college with sport concussion. Results of this study indicate that there may be a long-term impact of sport concussion on depression and suicide ideation. Additionally, the leading reason student athletes reported they chose to not seek help for their sport concussion was being unsure of the signs and symptoms of concussion. Implications for future research, practice, and advocacy of sport and counseling psychologists are discussed.
NOTE (Submitted Note): A Dissertation submitted to the Department of Educational Psychology and Learning Systems in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): November 18, 2021.
NOTE (Keywords): Concussion, Depression, Help-Seeking, Mental Health, Sport, Suicide Ideation
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Martin Swanbrow Becker, Professor Directing Dissertation; Joshua Newman, University Representative; Laura Reid Marks, Committee Member; Shengli Dong, Committee Member.
SUBJECT: Psychology
SUBJECT: Counseling psychology
DEGREE: Doctoral
FILENAME: Devine_fsu_0071E_16712.pdf
TITLE: Teacher Candidates' Attitudes Toward People Living in Poverty
AUTHOR: Devine, Donna Bauldree,
MEMBER (professor co-directing dissertation): Jakubowski, Elizabeth M.
MEMBER (professor co-directing dissertation): Davis, Angela F.
MEMBER (university representative): Schwartz, Robert A.
MEMBER (committee member): Hanline, Mary Frances
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Education
CORPORATE NAME: School of Teacher Education
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (167 pages)
ABSTRACT: The number of children living in poverty in the United States rose 14.4% from 2019 to 2020 (U.S. Census Bureau). In Florida, nearly one out of every four children live at or below the poverty threshold Koball and Jaing (2018). The complexities of life for people living in poverty are many. These complexities influence the education of students living in poverty. This study explored a sample of teacher candidates' attitudes toward people living in poverty. The survey instrument was The Undergraduate Perceptions of Poverty Survey (UPPTS) by Blair et al. (2014). This research represents the first time the UPPTS has been employed in the field of teacher preparation. It proved to be a helpful tool in collecting data from 106 participants, all enrolled in a teacher preparation program at a Predominantly White Institution in Florida. The overall attitudes of teacher candidates in this sample were mainly positive, a very good sign for the teaching profession. The limitations of this study do not allow for generalizing these results to teacher candidates as a whole. Much more research using a variety of research methods is necessary for results to be generalizable for teacher candidates and the preparation programs training future teachers. Attitudes have been shown to influence teacher practices which in turn influence student achievement. Teacher attitudes toward student diversity influence their conscious and subconscious decision-making in the classroom limiting or expanding access students have to an equitable education. Teachers' negative attitudes toward students living in poverty are not character flaws. They reflect a lack of experience and knowledge of the circumstances of poverty. This study may help inform research on how best to respond to attitudes toward poverty of teacher candidates and in-service teachers.
NOTE (Submitted Note): A Dissertation submitted to the School of Teacher Education in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): April 1, 2022.
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Elizabeth Jakubowski, Professor Co-Directing Dissertation; Angela Davis, Professor Co-Directing Dissertation; Robert Schwartz, University Representative; Mary Frances Hanline, Committee Member.
SUBJECT: Teachers--Training of
DEGREE: Doctoral
FILENAME: Dischman_fsu_0071E_17294.pdf
TITLE: Three Experiments on Group Identity in Economics
AUTHOR: Dischman, Theodore,
MEMBER (professor directing dissertation): Boosey, Luke A.
MEMBER (university representative): Großer, Jens W.
MEMBER (committee member): Isaac, R. Mark (Robert Mark), 1954-
MEMBER (committee member): Hamman, John R.
CORPORATE NAME: Florida State University
CORPORATE NAME: College of Social Sciences and Public Policy
CORPORATE NAME: Department of Economics
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (103 pages)
ABSTRACT: This dissertation consists of three chapters, each examining the impact of group identityon behavior in economic environments using experimental methods. Chapter One focuses on understanding the effects of a common group identity on the formation, terms, and sustainability of relational contracts. The experiment involves a group identity inducement followed by an experimental labor market with unenforceable contracts. Chapter Two examines the relative impact of common past experience in an ordeal, as distinct from shared past experience, on cooperation via group identity. Subjects engage in an individual task that determines Success or Failure. Subjects are then grouped according to their outcome and participate in an infinitely repeated public goods experiment. Treatments vary information provided to subjects. Chapter Three addresses how people differentially incorporate information about other people when information involves in-group or outgroup members. The chapter incorporates an experimental design that presents negative information about an in-group or out-group member's behavior.
NOTE (Submitted Note): A Dissertation submitted to the Department of Economics in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
NOTE (Date of Defense): June 20, 2022.
NOTE (Keywords): Experimental Economics, Group Identity
NOTE (Bibliography Note): Includes bibliographical references.
NOTE (Advisory Committee): Luke Boosey, Professor Directing Dissertation; Jens Grosser, University Representative; R. Mark Isaac, Committee Member; John Hamman, Committee Member.
SUBJECT: Economics
DEGREE: Doctoral
FILENAME: Evers_fsu_0071N_17446.pdf
TITLE: Manufacturing and Characterization of Carbon Nanotube Yarn Composites
AUTHOR: Evers, Cecil E.,
MEMBER (professor directing thesis): Liang, Zhiyong (Richard)
MEMBER (committee member): Sweat, Rebekah
MEMBER (committee member): Park, Jin Gyu
MEMBER (committee member): Hellstrom, Eric
CORPORATE NAME: Florida State University
CORPORATE NAME: FAMU-FSU College of Engineering
CORPORATE NAME: Program in Materials Science and Engineering
PUBLICATION: Tallahassee, Florida: Florida State University, 2022
PHYSICAL DESCRIPTION: 1 online resource (71 pages)
ABSTRACT: This research demonstrates the techniques to potentially use continuous carbon nanotube (CNT) yarns to make high mechanical performance composites at scale for use in aerospace applications. CNT yarns are a way to convert carbon nanotubes into engineering scale materials. Fully CNT reinforced composites were manufactured using a filament winding process and aerospace grade resin systems. Manufacturing techniques were evaluated, including stretching, compression, resin impregnation, and flow control. Continuous CNT yarns were made into sizable unidirectional, 0°/90°, and quasi-isotropic composite laminates. The resultant composite panels achieved mechanical properties that exceed the current state of the art carbon fiber composites such as IM7/8552 CFRP.
NOTE (Submitted Note): A Thesis submitted to the Program in Materials Science and Engineering in partial fulfillment of the requirements for the degree of Master of Science.
NOTE (Date of Defense): June 29, 2022.
NOTE (Keywords): carbon nanotube, composite