Digital Commons Network^™

Addition And Subtraction: Coral Reproduction And Disease In A Changing Ocean, Ashley Rossin

LSU Doctoral Dissertations

Marine diseases are changing the landscapes of coral reefs particularly throughout the Western Atlantic. Stony coral tissue loss disease (SCTLD) swept through this region impacting at least 22 stony coral species. White plague (WP) is a more ephemeral disease, but still has a significant impact on coral reef health and perseverance, especially under a changing ocean. While these impacts are seen on the reef-scale, we can zoom into the tissue-level to identify disease markers for both diseases and identify their differences. This has ramifications for disease intervention, as well as mitigation strategies. Despite continuous disease outbreaks, healthy corals persist and …

Unveiling The Idiomatic And Performance Inspirations: A Comparative Study Of The Red Violin Caprices By John Corigliano., Johan Alexander Pepper

LSU Doctoral Dissertations

John Corigliano's composition for "The Red Violin," a 1998 film by Don McKellar and François Girard, presents a multifaceted exploration of thematic material and performance challenges. This dissertation investigates Corigliano's creation of the "Red Violin" Caprices, examining their origins in the film's soundtrack and their transformation into solo works. Corigliano's intention to showcase the artistry of violinist Joshua Bell through these caprices underscores their technical and musical complexity. The Caprices, replete with references to the Baroque era and various virtuosic works, demand a high level of virtuosity from performers. Drawing on a sequence of seven chords and Anna’s Theme from …

Unavoidable Topological Minors Of Large Or Infinite 3-Connected Rooted Graphs, Phuc A. Nguyen

LSU Doctoral Dissertations

The goal of this thesis is to determine the unavoidable topological minors of large and infinite $ 3 $-connected rooted graphs, where a rooted graph is a graph $ G $ together with a specified subset $ X $ of $ V(G) $ or $ E(G) $. We have two results for finite graphs. First, every $ 3 $-connected finite graph $ G $ with a sufficiently large $ X \subseteq E(G) $ must contain a topological minor $ K_{3, n}, W_n $, or $ V_n $, using many edges of $ X $, where $ W_n $ is a …

The Modular Generalized Springer Correspondence For The Symplectic Group, Joseph Dorta

LSU Doctoral Dissertations

The Modular Generalized Springer Correspondence (MGSC), as developed by Achar, Juteau, Henderson, and Riche, stands as a significant extension of the early groundwork laid by Lusztig's Springer Correspondence in characteristic zero which provided crucial insights into the representation theory of finite groups of Lie type. Building upon Lusztig's work, a generalized version of the Springer Correspondence was later formulated to encompass broader contexts.

In the realm of modular representation theory, Juteau's efforts gave rise to the Modular Springer Correspondence, offering a framework to explore the interplay between algebraic geometry and representation theory in positive characteristic. Achar, Juteau, Henderson, and Riche …

Subroups Of Coxeter Groups And Stallings Foldings, Jake A. Murphy

LSU Doctoral Dissertations

For each finitely generated subgroup of a Coxeter group, we define a cell complex called a completion. We show that these completions characterizes the index and normality of the subgroup. We construct a completion corresponding to the intersection of two subgroups and use this construction to characterize malnormality of subgroups of right-angled Coxeter groups. Finally, we show that if a completion of a subgroup is finite, then the subgroup is quasiconvex. Using this, we show that certain reflection subgroups of a Coxeter are quasiconvex.

Analytic Wavefront Sets Of Spherical Distributions On The De Sitter Space, Iswarya Sitiraju

LSU Doctoral Dissertations

In this work, we determine the wavefront set of certain eigendistributions of the Laplace-Beltrami operator on the de Sitter space. Let G′ = O_1,n(R) be the Lorentz group, and let H′ = O_1,n−1(R) ⊂ G′ be its subset. The de Sitter space dSⁿ is a one-sheeted hyperboloid in R^1,n isomorphic to G′/H′. A spherical distribution is an H′-invariant eigendistribution of the Laplace-Beltrami operator on dSⁿ. The space of spherical distributions with eigenvalue λ, denoted by D_λ^H'(dSⁿ), has dimension 2. We construct a basis for the space of …

Sequencing Orchestral Repertoire For Collegiate Orchestras: Addressing The Educational Needs Of Students In Various Stages Of Development, Cheuk Nok Francis Ku

LSU Doctoral Dissertations

Sequencing is a fundamental aspect of music education, not only in individual instrumental teaching but also in large-ensemble instruction. Collegiate orchestras, like other educational ensembles, experience turnover of students each academic year, and face unique challenges in repertoire selection due to the diverse skill levels and experience of their members. This document presents a case study of the LSU Symphony Orchestra program spanning from 2021 to 2024, and complements a performance featuring works by Amy Beach, Ludwig van Beethoven, Joseph Haydn, and José Pablo Moncayo. The document also delved into the study of performance practice during the Classical period and …

A Study Of Select Arias From Three Obscure Operas By Antonio Vivaldi: ‘Ottone In Villa,’ ‘Arsilda, Regina Di Ponto,’ And ‘Il Farnace’, Qinan Cai

LSU Doctoral Dissertations

This paper provides an analysis of select compositional tools found in chosen arias from Antonio Vivaldi’s lesser-known operas, Ottone in Villa RV 729, Arsilda, Regina di Ponto RV 700, and Farnace RV 711. It aims to illuminate Vivaldi’s exploration of human emotions and relationships through his music. The research focuses on select arias from each opera, emphasizing Vivaldi’s compositional style, use of sequential patterns, development of harmonic shifts in the music, and the inclusion of the Lombardic rhythm. In addition, commentary is included regarding the application of modal principles, and rhythmic speech patterns. The study also offers historical context and …

Maria Rosa Ribas Monné: A Case Study, Rebeca Lemos Gonzalez

LSU Doctoral Dissertations

This dissertation explores the musical legacy of Catalan composer Maria Rosa Ribas Monné, emphasizing the influence of the Catalan context on her compositions and recognizing the contributions of Spanish women in music, particularly in cello music. Through an in-depth exploration of Maria Rosa's life, musical perspective, and analysis of her works "Faust", "Disperato,"and "Record d'una música," this study unveils pivotal insights into her artistic journey. Additionally, it includes a comprehensive catalogue of her compositions, providing a detailed overview of her musical output.

The dissertation begins by examining how M. Rosa Ribas' deep connection to Catalan culture, influenced by poet Màrius …

Exploring The Spanish Pianistic Landscape: A Study On Salvador Brotons's Solo Piano Works, Angela P. Gonzalez Gimenez

LSU Doctoral Dissertations

This dissertation delves into the figure of Spanish composer Salvador Brotons, focusing on his solo piano works, particularly his Piano Sonata, Op. 124. Through performative and music theory analyses, it aims to deepen musicians' understanding of Brotons's compositional style, providing insights into his musical language and influences. Key questions addressed include Brotons's compositional style, influences in his music, and the necessary insights for effective performance. Brotons, a multifaceted musician, excels not only as a composer but also as an instrumentalist, conductor, and educator, enriching each role with his diverse expertise. The study concentrates on his piano compositions while acknowledging …

Modeling And Numerical Analysis Of The Cholesteric Landau-De Gennes Model, Andrew L. Hicks

LSU Doctoral Dissertations

This thesis gives an analysis of modeling and numerical issues in the Landau-de Gennes (LdG) model of nematic liquid crystals (LCs) with cholesteric effects. We derive various time-step restrictions for a (weighted) $L^2$ gradient flow scheme to be energy decreasing. Furthermore, we prove a mesh size restriction, for finite element discretizations, that is critical to avoid spurious numerical artifacts in discrete minimizers that is not well-known in the LC literature, particularly when simulating cholesteric LCs that exhibit ``twist''. Furthermore, we perform a computational exploration of the model and present several numerical simulations in 3-D, on both slab geometries and spherical …

Mentorship Within Developmental Networks: A Phenomenological Study Of Black Women Tenured Associate Professors And Their Path Toward Full Professor, Jenifer F. Godfrey

LSU Doctoral Dissertations

The problem of inadequate representation of Black women in tenure track faculty positions is both pronounced and longstanding. With Black women making up less than 2% of full professors, this is particularly true at institutions categorized as R1 – Doctoral Universities – Very high research activity by The Carnegie Classification of Institutions of Higher Education. College faculty have long been the focus of scholarly research. However, studies focused on mentorship to be promoted to full professor for associate professors generally, and Black women associate professors specifically, are lacking. Using a conceptual framework that defined mentorship broadly as developmental networks and …

Prescribed Fire Effects On Microbial Communities And Functions In Managed Ecosystems, Viet Dao

LSU Doctoral Dissertations

Microbes (both fungi and bacteria) serve important ecosystem functional roles in nutrient cycling and decomposition, which affect ecosystem response following disturbances such as prescribed fire. A multitude of abiotic and biotic factors influence microbial community compositions, which then drive microbial ecosystem functions. The factors driving microbial communities further change due to fire disturbances and progression with time. Although prescribed fire is commonly used as a technique for ecosystem management, the effects of fire on microbial communities or their functions are simply understudied. Ecosystem management decisions tend to focus on plant and ecosystem post-fire responses. Thus, incorporation of fire effects on …

Characterizing And Mitigating Transient Noise In Ligo Observatories For Gravitational Wave Detection, Jane Glanzer

LSU Doctoral Dissertations

The existence of gravitational waves is predicted by Albert Einstein's Theory of General Relativity. Commonly referred to as "ripples in spacetime", these waves are generated by some of the most violent and energetic processes in the universe. Despite their theoretical prediction over a century ago, it wasn't until 2015 that the Advanced LIGO (aLIGO) interferometers in Hanford, WA and Livingston, LA directly detected gravitational waves for the first time, confirming Einstein's theory and ushering in a new era of astrophysics.

Detecting gravitational waves requires incredible precision. Because of the extreme sensitivity required, it is possible for the gravitational wave data …

Problem-Solving In The Preparation Of Teachers For Agricultural Education: A Mixed Methods Study Investigating The Effect Of Metacognitive Awareness And Cognitive Ability On Students Enrolled In An Introductory Agricultural Mechanics Course, Whitney Figland

LSU Doctoral Dissertations

Cognitive and metacognitive ability have been identified as a critical factor that influences individuals to successfully problem-solve. However, recent research has indicated that students do not have the necessary 21st-century skills to be successful in the workplace. This issue has been confounded by the lack of school-based agricultural education (SBAE) teachers’ limited knowledge regarding effectively teaching decision-making skills and the use of teaching methods that promote problem-solving. Therefore, this study sought to understand the effect that cognitive and metacognitive ability had on the problem-solving of students who are enrolled in an Introduction to Agricultural Mechanics course at Louisiana State University. …

What Is Eai? A Short History Of The Style’S Evolution And Development Of Identifiable Characteristics, Dylan Burchett

LSU Doctoral Dissertations

EAI (Electro-Acoustic Improvisation) has long presented issues pertaining to its definition and practice. This is due to the wide range of acoustic and electronic sounds present in the style as well as the style’s stated adherence to improvisation. This stated adherence to improvisation and wide potential range of acoustic and electronic sounds seem to clash with EAI’s stylistic consistencies. Because the EAI style has been difficult to define, it has also been difficult to place historically within experimental music traditions. In order to clarify the definition, practice, and historical positioning of EAI and identify where the style’s boundary lines around …

Running To Or Running From: Exploring The Phenomenology Of Off-Cycle Turnover In Entry Level Housing Professionals, Kate Gannon-Cullinan

LSU Doctoral Dissertations

Housing and residence life as a functional area serves as a major entry point for careers in higher education and student affairs. With the majority of annual job postings within entry-level, live-in housing roles, the future of the field may well be predicted in these high-impact, high-turnover positions on college campuses. As these functional areas continue to struggle to find themselves fully-staffed throughout their academic year cycle, the impact on both the student experience and organizational health is impacted. This study utilized an interpretive phenomenological approach to explore the experiences and feelings of those entry-level, live-in housing professionals who chose …

Investigating Gulf Coast Aquifer System: Stratigraphy Reconstruction, Inverse Modeling, And Groundwater Stress Assessment, Shuo Yang

LSU Doctoral Dissertations

The Mississippi Embayment aquifer system (MEAS) and the Coastal Lowlands aquifer system (CLAS) provide substantial groundwater resources for human activities in the U.S. Gulf Coastal Plain. However, the overexploitation has led to groundwater depletion in the MEAS and the CLAS, threatening sustainable groundwater use. Such concern highlights the crucial need for an advanced understanding of stratigraphy and groundwater in these aquifer systems, which is essential for effective regional groundwater management. This dissertation presents a comprehensive investigation of MEAS and CLAS in the Louisiana and southwestern Mississippi region, encompassing three fundamental dimensions: stratigraphy reconstruction, groundwater modeling, and groundwater stress assessments. A …

In-Person, Hybrid, Or Remote: Exploring The Effectiveness Of Teacher Practices On Student Performance During The Covid-19 Pandemic, Ashley M. Segalla

LSU Doctoral Dissertations

Schools and universities had to make unexpected changes beginning in Spring 2020 because of the COVID-19 pandemic. In Spring 2021, one university in the southern region of the United States implemented hybrid teaching formats in College Algebra courses, where students attended half of the classes in-person, and the remaining half of classes were attended synchronously and remotely. The purpose of this mixed methods study was to determine if students’ attendance methods (virtual or in-person) impacted their academic performance in the course. Additionally, the study sought to determine how students and the instructor felt student performance was impacted by hybrid attendance. …

"In The Footsteps Of Hercules": The Influence Of Classical Antiquity On Eighteenth-Century Militaries, Scott Madere

LSU Doctoral Dissertations

This project examines the pervasive influence of ancient Roman and Greek figures, historical events, literature, and military methods on the leaders and practitioners of eighteenth-century warfare. Rulers, generals, military theorists, and officers frequently consulted classical histories and literature for solutions to the common military problems of the period – tactical, operational, and strategic – showing remarkable faith in ancient military methods despite their growing dependence on gunpowder weaponry and related technologies. This dissertation examines why this was the case and concludes that classical antiquity not only maintained the credibility of its wisdom in the context of modern warfare, but also …

A Study On High-Frequency Bending Fatigue, Microhardness, Tensile Strength, And Microstructure Of Parts Made Using Atomic Diffusion Additive Manufacturing (Adam) And Additive Friction Stir Deposition (Afsd), Hamed Ghadimi

LSU Doctoral Dissertations

This dissertation reports the findings of several studies on the mechanical and microstructural properties of parts made using atomic diffusion additive manufacturing (ADAM) and additive friction stir deposition (AFSD). The design of a small-sized bending-fatigue test specimen for an ultrasonic fatigue testing system is reported in Chapter 1. The design was optimized based on the finite element analysis and analytical solution. The stress–life (S–N) curve is obtained for Inconel alloy 718. Chapter 2 presents the findings of ultrasonic bending-fatigue and tensile tests carried out on the ADAM test specimens. The S-N curves were created in the very high-cycle fatigue regime. …

Producing Digital Reflections Of Reality Through Intercultural Filmmaking And Multisensory Engagement, Trai Thomas

LSU Doctoral Dissertations

This thesis analyzes the author’s production of three intercultural, multisensory films situated in New Orleans, encompassing elements both narrative and documentary genres. Intercultural cinema exists in a setting where people of different cultural backgrounds live together in power-inflicted spaces of diaspora, colonialism, and cultural apartheid and the development of the story is centered around exoticism, fetishization, and fascination with the other (Marks 2007, 1). Multisensory media primarily engages through visual perception and auditory input, which create cultural knowledge stored as long-term memory files in the brain (Marks 2007).

The Impact Of American Kitchen Time-Use On Urban Design And Planning: A Case Study Of Baton Rouge, Louisiana, Farshid Torabian

LSU Doctoral Dissertations

Over the past century, the global environment has undergone significant changes, characterized by rising temperatures and a sharp increase in greenhouse gas emissions. Parallel to these environmental shifts, the U.S. has witnessed a tripling in energy demands, underscoring the pivotal role of household consumption in the nation's carbon footprint. Within this context, the kitchen, an integral component of the American home, becomes a focal point. Given that Americans predominantly spend their time indoors, it is imperative to understand the dynamics of kitchen usage and its broader implications on energy consumption and environmental impact. To delve into this complex interplay, this …

Yiannis Constantinidis "Petite Suite" For Violin And Piano Transcribed For Cello Quarte: Synthesizing Foreign Inspirations And Greek Folk Melodies To Shape A Distinct National And Individual Genre., Eirini Triantafyllia Barouta

LSU Doctoral Dissertations

This paper accompanies my transcription for Cello Quartet of Yiannis Constantinidis' "Petite Dodekanese Suite" originally composed for violin and piano. Constantinidis, skillfully weaves Greek folk-inspired elements with classical forms and techniques in his "Petite Suite for Violin and Piano." The chamber piece serves as a testament to Constantinidis' mastery, as it intricately melds folk melodies, rhythms, and modes from the rich musical traditions of Greece with classical structures. This fusion imparts a distinctly Greek character to the composition, evoking a profound sense of nostalgia and connecting the listener to the cultural heritage and spirit of the Greek people. The paper …

In Search Of The Armorial Aesthetic: The Counter-Reform Of Ariano Suassuna And The Compositional Techniques In Clovis Pereira’S Suite Macambira, Wagner De Oliveira Duarte

LSU Doctoral Dissertations

Throughout the first half of the twentieth century, in the wake of the Week of Modern Art in São Paulo in 1922, Brazil grappled with defining its national identity, distinct from European influences. While eminent figures such as Villa-Lobos, Camargo Guarnieri, and Francisco Mignone provided foundational narratives in this quest, the Armorial movement emerged as a unique and emblematic response to these nationalistic aspirations.

Originating from the creative vision of Ariano Suassuna, the Armorial movement, though often perceived as a regional initiative, epitomized a broader endeavor to represent Brazil's diverse cultural tapestry. Central to understanding this movement is the work …

Incubating Education: The Lived Experiences Of Louisiana Elementary And Middle School Teachers When Piloting A 4-H Stem School Enrichment Curriculum, Crystal Rose Ahrens

LSU Doctoral Dissertations

This study addressed a deficiency in the agricultural literacy of the U.S. population by focusing on the challenges that core subject teachers face when integrating agriculture into their curriculum. Using a phenomenological research approach, this investigation explored the lived experiences of Louisiana teachers who piloted a 4-H STEM curriculum, focusing on the growth in agricultural literacy of the teachers while instructing third and eighth-grade students on the agricultural-based and STEM-focused topic of embryology. Employing a transcendental phenomenological approach, I acknowledged my biases through reflexivity and adhered to ethical considerations, including informed consent and confidentiality. Key findings emerged through four themes …

Death, Dreaming, And Diaspora: Achieving Orientation Through Afro-Spirituality, Liz Johnston, Jaime Elizabeth Johnston

LSU Doctoral Dissertations

Enslavement, colonization, and the systems that uphold racial injustice were and still are a series of new, unfathomable, and challenging experiences that prompt individuals within the diaspora to seek orientation. How does a human cope with centuries of attempts at the systematic destruction of their humanity, culture, and identity? How can they reclaim that identity, especially when so much of it seems lost? I address these questions by utilizing texts from the expansive body of work regarding ethnographic-historical-religious studies on Afro-spiritual practices to better analyze instances in literature in the ongoing practice of diasporic orientation. In this project, I argue …

Time, Place, & Purpose: The Performance Of Creole Identity In Louisiana, Rachel N. Aker

LSU Doctoral Dissertations

Though much of the early development of Louisiana Creole culture can be found in New Orleans, the culture spread and continued to grow throughout the rest of South Louisiana in both similar and different ways. Expanding beyond Joseph Roach’s treatment of Creole cultural performances in New Orleans in Cities of the Dead (1996) and journeying across land and water, this project identifies more Creole cultural performance as they emerge across place and time. I present Louisiana and the Gulf South as a kind of inland archipelago, with the currents of culture-creation moving in and around distinct community enclaves. The flow …