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2017

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The Effects Of Instrumental Noise On Searches For Generic Transient Gravitational Waves In Advanced Ligo, Marissa Walker Jan 2017

The Effects Of Instrumental Noise On Searches For Generic Transient Gravitational Waves In Advanced Ligo, Marissa Walker

LSU Doctoral Dissertations

One hundred years after Albert Einstein predicted the existence of gravitational waves as a result of his theory of general relativity, the Laser Interferometer Gravitational-Wave Observatory (LIGO), made the first direct detection of a gravitational-wave signal from a binary black hole merger, GW150914. GW150914 was found not only by search methods specifically developed to find the distinctive waveform produced by coalescing binaries, but also by generic searches designed to find any arbitrary short-duration signal in the LIGO data. The impact of noise on the searches must be carefully investigated in order to reduce the search background and enable confident gravitational-wave …


Epigenetic Profiling Of Mammalian Retrotransposons, Arundhati Bakshi Jan 2017

Epigenetic Profiling Of Mammalian Retrotransposons, Arundhati Bakshi

LSU Doctoral Dissertations

Over evolutionary time, mammalian genomes have accumulated a large number of retrotransposons, making up about half of the genome in any given species. These retrotransposons are typically repressed by epigenetic mechanisms, one of the main ones being DNA methylation. It is well known that improper DNA methylation of retrotransposons can have unwanted consequences on nearby gene expression, and hypomethylation of retrotransposons has been frequently observed in various cancers. Nevertheless, it has been notoriously difficult to study retrotransposon loci individually due to the highly repetitive nature of their sequences. To address this issue, we have developed a novel protocol termed HT-TREBS …


A Mixed Methods Analysis Of School- And Student-Level Effects: Mathematics Course Completion And Achievement Beyond Algebra 2 Among Mexican American Female High School Students, Lester Archer Jan 2017

A Mixed Methods Analysis Of School- And Student-Level Effects: Mathematics Course Completion And Achievement Beyond Algebra 2 Among Mexican American Female High School Students, Lester Archer

LSU Doctoral Dissertations

In the United States, as the Hispanic population continues to grow, persistently low mathematics achievement among Mexican Americans continues to exist, particularly among girls. Low mathematics achievement places this group in a disadvantaged position. As such, a multistage mixed method study was implemented to investigate possible factors associated with mathematics achievement and the probability of taking mathematics courses beyond Algebra 2 among Mexican American female high school students. The Educational Longitudinal Study (ELS:2002) database provided the quantitative sample (n = 710) of respondents who self-identified as Mexican American, female, and had a math IRT score. A parallel sample (n = …


Assessing And Modeling Community Resilience To Coastal Hazards Using A Bayesian Network, Heng Cai Jan 2017

Assessing And Modeling Community Resilience To Coastal Hazards Using A Bayesian Network, Heng Cai

LSU Doctoral Dissertations

This dissertation presents the assessment and modeling of community resilience to coastal hazards in the Lower Mississippi River Basin (LMRB) in southeastern Louisiana at the census block group scale. The first part is to provide a quantitative method to assess and validate the community resilience index to coastal hazards and identify the relationships between a set of socio-environmental indicators and community resilience. The Resilience Inference Measurement (RIM) model was applied to assess the resilience of the block groups. The resilience index derived was empirically validated through two statistical procedures: K-means cluster analysis of three variables (exposure, damage, and recovery) to …


Eduardo Gamboa's Life, Music, And Inspiration. Understanding The Influence Of Folk Music On His Work "Transparencias:" An Analysis, Performance Guide, And Violin Transcription, Perla Del Rocio Fernandez Lopez Jan 2017

Eduardo Gamboa's Life, Music, And Inspiration. Understanding The Influence Of Folk Music On His Work "Transparencias:" An Analysis, Performance Guide, And Violin Transcription, Perla Del Rocio Fernandez Lopez

LSU Doctoral Dissertations

The purpose of this dissertation is to explore the life and music of Mexican living composer Eduardo Gamboa. This study intends to fill a void on the research of Gamboa. This document provides detailed biographical information, information about the influences on his music, and an edition of Transparencias for violin. The first chapter provides a broad biography of the composer including his musical formation, folk experience, and a complete catalog of his works. The second chapter is an introduction about Transparencias and contains the point of view of the composer and of the flutist Tadeu Coelho, to whom Gamboa dedicated …


Activity Of Benzobicyclon Herbicide In Common Louisiana Rice Production Practices, Benjamin M. Mcknight Jan 2017

Activity Of Benzobicyclon Herbicide In Common Louisiana Rice Production Practices, Benjamin M. Mcknight

LSU Doctoral Dissertations

A study was conducted at the LSU AgCenter H. Rouse Caffey Rice Research Station (RRS) to evaluate benzobicyclon herbicide application timing on water-seeded rice. Benzobicyclon was applied at seven different timings, at 246 g ai ha-1 in a water-seeded rice production system. Benzobicyclon controlled ducksalad above 90% when applied into the pinpoint flood. Barnyardgrass control was greater than 90% from applications made on pegging rice and immediately following pinpoint flood establishment. At 49 days after treatment (DAT), yellow nutsedge control exceeded 90% following benzobicyclon treatment with a pegging rice or pinpoint flood timing. Ducksalad control was greater than 90% following …


Forgetting Health Disparities: A One Size Fits All Narrative, Lauri Andress Jan 2017

Forgetting Health Disparities: A One Size Fits All Narrative, Lauri Andress

Faculty & Staff Scholarship

This qualitative synthesis explores a public health narrative and events in the US that may have contributed to the prominence of a one-size-fits all communications frame and public health tool that excludes the significance of social status. An analysis of past events is used to carry out a textual analysis of two communications framing studies. One central narrative is found to be more effective than other potential themes on equality, social conditions, and health inequities. The potential impacts of this narrative on disadvantaged, older communities are explored. Consequently, the current claim that the built-environment narrative is “good for everyone” is …


Archbishop Rummel's Leadership In Troubled Times: Spiritual And Secular Discourses To Integrate Parochial And Public Schools In New Orleans, Kristina Mckenzie-Hudson Jan 2017

Archbishop Rummel's Leadership In Troubled Times: Spiritual And Secular Discourses To Integrate Parochial And Public Schools In New Orleans, Kristina Mckenzie-Hudson

LSU Doctoral Dissertations

This study examines the pastoral letters of Archbishop Joseph Francis Rummel. Rummel served as the archbishop of the New Orleans archdiocese during a very tumultuous period in New Orleans’ history, 1935-1964. In the four decades before Rummel’s arrival, the archdiocese of New Orleans became increasingly segregated. Segregation became Church policy, as the New Orleans Catholic Church shunned its integrationist roots. As the infamous school crisis of 1960 raged in New Orleans and gained national attention, as leader of the Catholic faithful, Rummel would be confronted with the seminal question of his tenure, what was his stance on segregation in the …


Rescuing Relationships: Toward An Understanding Of Exchange Relationship Disruption And Recovery, Matthew Mark Lastner Jan 2017

Rescuing Relationships: Toward An Understanding Of Exchange Relationship Disruption And Recovery, Matthew Mark Lastner

LSU Doctoral Dissertations

Research investigating business-to-business (B2B) exchange supports the position that cultivating strong exchange relationships is vital to the long-term success of both parties involved in an exchange. However, while much is known about how exchange relationships are developed and organized to yield maximum benefits for buyers and sellers, very little research has been advanced to understand how B2B exchanges experience disruptive events and what impact disruptions have on the long-term health of these relationships. Across three essays, this dissertation utilizes a multi-method approach to examine the nature and impact of disruptive events on inter-firm exchange relationships to address this shortcoming in …


Channel Estimation And Symbol Detection In Massive Mimo Systems Using Expectation Propagation, Kamran Ghavami Jan 2017

Channel Estimation And Symbol Detection In Massive Mimo Systems Using Expectation Propagation, Kamran Ghavami

LSU Doctoral Dissertations

The advantages envisioned from using large antenna arrays have made massive multiple- input multiple-output systems (also known as massive MIMO) a promising technology for future wireless standards. Despite the advantages that massive MIMO systems provide, increasing the number of antennas introduces new technical challenges that need to be resolved. In particular, symbol detection is one of the key challenges in massive MIMO. Obtaining accurate channel state information (CSI) for the extremely large number of chan- nels involved is a difficult task and consumes significant resources. Therefore for Massive MIMO systems coherent detectors must be able to cope with highly imperfect …


Structure-Based Prediction Of Protein-Protein Interaction Networks Across Proteomes, Surabhi Maheshwari Jan 2017

Structure-Based Prediction Of Protein-Protein Interaction Networks Across Proteomes, Surabhi Maheshwari

LSU Doctoral Dissertations

Protein-protein interactions (PPIs) orchestrate virtually all cellular processes, therefore, their exhaustive exploration is essential for the comprehensive understanding of cellular networks. Significant efforts have been devoted to expand the coverage of the proteome-wide interaction space at molecular level. A number of experimental techniques have been developed to discover PPIs, however these approaches have some limitations such as the high costs and long times of experiments, noisy data sets, and often high false positive rate and inter-study discrepancies. Given experimental limitations, computational methods are increasingly becoming important for detection and structural characterization of PPIs. In that regard, we have developed a …


Managerial Labor Mobility In The National Football League, Jeremy Joseph Foreman Jan 2017

Managerial Labor Mobility In The National Football League, Jeremy Joseph Foreman

LSU Doctoral Dissertations

Within the present dissertation, determinants of leader dismissals, promotions, and demotions are explored. A model of CEO dismissals is adapted to the context of the National Football League (NFL), whereby head coaches represent CEOs. Building upon empirical studies of the CEO dismissal model, a proxy is established which is representative of actual candidates to replace an executive rather than proxies based on industry and firm characteristics. Using the proxy for candidates provided statistically insignificant results that challenge the theoretical relationship between candidate availability and executive dismissals. Additionally, the present dissertation proposed and found empirical justification for incorporating an additional socio-political …


La Garza En Bicicleta: Perceptions Of Latina Faculty On The Role Of Organizational Citizenship Behaviors And Institutional Engagement On Tenure And Promotion At Research 1 Doctoral Institutions, Julie Johanna Henriquez Jan 2017

La Garza En Bicicleta: Perceptions Of Latina Faculty On The Role Of Organizational Citizenship Behaviors And Institutional Engagement On Tenure And Promotion At Research 1 Doctoral Institutions, Julie Johanna Henriquez

LSU Doctoral Dissertations

A predicted population shift will increase the number of underrepresented groups entering the workforce, with Latinxs accounting for the majority of employees. Consequently, the number of Latinxs enrolled in colleges and universities nationwide will increase. This shift in the college student body demographic will in turn call for an increase in the number of underrepresented faculty members to provide support and mentorship to students. It is concerning to see that only 2% of tenured faculty identified as Latina in 2013-2014. This number will need to increase in order to support the predicted increase in Latinxs pursuing higher education. The purpose …


How I Got Over: A Study Of The Tenure Experiences Of Black Female Professors At Predominantly White Institutions, Veta E. Parker Jan 2017

How I Got Over: A Study Of The Tenure Experiences Of Black Female Professors At Predominantly White Institutions, Veta E. Parker

LSU Doctoral Dissertations

This study explored the tenure experiences of seven Black female professors as they pursued tenure at select public higher/highest research activity predominantly white institutions. This study was pursued in an attempt to determine what challenges were presented during the tenure process. More importantly, this study sought to determine the role of mentorship in the pursuit of tenure. In addition, recommendations for success were offered to Black females who are currently pursuing tenure or who may choose to enter the academy. A narrative research study was utilized for this study which was informed by Black Feminist Thought. This allowed for a …


Termite Gut Microbes As Tools And Targets For Termite Control, Chinmay Vijay Tikhe Jan 2017

Termite Gut Microbes As Tools And Targets For Termite Control, Chinmay Vijay Tikhe

LSU Doctoral Dissertations

The Formosan subterranean termite (FST), Coptotermes formosanus, is an invasive urban pest in the United States. Colonies of the FST are dependent on the symbiotic gut protozoa for cellulose digestion in the workers’ guts, and the gut bacterial community is known to provide essential nutrients to the termite. The objectives of this PhD research were to develop and evaluate paratransgenesis and phage therapy for termite control. During this study, a termite gut bacterium: Trabulsiella odontotermitis was genetically engineered and was evaluated as a ‘Trojan horse’ for paratransgenesis. We proved that T. odontotermitis can tolerate 50 times more concentration of ligand-Hecate …


Microscopic Evaluations Of Bone In Equine And Muroid Models, Heather Ashley Richbourg Jan 2017

Microscopic Evaluations Of Bone In Equine And Muroid Models, Heather Ashley Richbourg

LSU Doctoral Dissertations

The use of advanced imaging techniques has greatly improved orthopedic research and education. Histology of bone is a method of evaluating bone morphology, bony cells, and bone remodeling in two-dimensions, while micro-computed tomography (microCT) is a three-dimensional analysis of bone morphology. Combined, these methods assist in providing a comprehensive analysis of bone. In this dissertation, these techniques were utilized to answer questions currently outstanding in veterinary medicine: the effect of bisphosphonates on equine bone, and variation in murine tarsal anatomy. Bisphosphonates are drugs that reduce osteoclast-mediated bone resorption and have recently been approved for the use in horses. Despite prolific …


Analysis And Optimization Of Scientific Applications Through Set And Relation Abstractions, M. Tohid (Rastegar Tohid, Mohammed) Jan 2017

Analysis And Optimization Of Scientific Applications Through Set And Relation Abstractions, M. Tohid (Rastegar Tohid, Mohammed)

LSU Doctoral Dissertations

Writing high performance code has steadily become more challenging since the design of computing systems has moved toward parallel processors in forms of multi and many-core architectures. This trend has resulted in exceedingly more heterogeneous architectures and programming models. Moreover, the prevalence of distributed systems, especially in fields relying on supercomputers, has caused the programming of such diverse environment more difficulties. To mitigate such challenges, an assortment of tools and programming models have been introduced in the past decade or so. Some efforts focused on the characteristics of the code, such as polyhedral compilers (e.g. Pluto, PPCG, etc.) while others …


Distributed Kalman Filters Over Wireless Sensor Networks: Data Fusion, Consensus, And Time-Varying Topologies, Jianming Zhou Jan 2017

Distributed Kalman Filters Over Wireless Sensor Networks: Data Fusion, Consensus, And Time-Varying Topologies, Jianming Zhou

LSU Doctoral Dissertations

Kalman filtering is a widely used recursive algorithm for optimal state estimation of linear stochastic dynamic systems. The recent advances of wireless sensor networks (WSNs) provide the technology to monitor and control physical processes with a high degree of temporal and spatial granularity. Several important problems concerning Kalman filtering over WSNs are addressed in this dissertation. First we study data fusion Kalman filtering for discrete-time linear time-invariant (LTI) systems over WSNs, assuming the existence of a data fusion center that receives observations from distributed sensor nodes and estimates the state of the target system in the presence of data packet …


Local Embeddedness Matters: A Study Of Hip-Hop Artists' Interaction With Their Local Community, Castel Vette Sweet Jan 2017

Local Embeddedness Matters: A Study Of Hip-Hop Artists' Interaction With Their Local Community, Castel Vette Sweet

LSU Doctoral Dissertations

This dissertation study is an exploration of hip hop and rap artists’ embeddedness in local communities, and their interpretation of the connectedness between their work and their communities. I explore the influence of place and space in the identity development of artists, and how artist use those identities to guide their interactions with their local community. I also investigate the significance of artists’ interactions and relationship in the cultivation of social and cultural capital. In contrast to previous scholarship emphasising the negative influence rap and hip-hop artists have on their communities, I utilize in-depth interviews with artists to examine the …


Performance Evaluation And Characterization Of Encapsulated Calcium Nitrate For Self-Healing Concrete Applications, Jose Eduardo Milla Jan 2017

Performance Evaluation And Characterization Of Encapsulated Calcium Nitrate For Self-Healing Concrete Applications, Jose Eduardo Milla

LSU Doctoral Dissertations

Self-healing concrete through microencapsulated calcium nitrate is a novel approach to enhance durability and decrease the costs associated with maintenance and repairs. However, to fully assess the potential of this technology, there are many questions to be answered, ranging from identifying the microcapsule properties that are successfully carry the healing agent, to the effect of the microcapsule size, concentration (by weight of cement), and morphology have on the intrinsic concrete material properties and self-healing potential. Hence, the objectives of this study were to: (a) Develop a microencapsulation procedure for calcium nitrate as the healing agent; (b) Measure the short-term healing …


Private Vs. Public: Lesbian, Gay, Bisexual, And Transgender Student Experiences And The Influence Of Anti-Discrimination Policies With Respect To Religion, Shalonda Michelle Skidmore Jan 2017

Private Vs. Public: Lesbian, Gay, Bisexual, And Transgender Student Experiences And The Influence Of Anti-Discrimination Policies With Respect To Religion, Shalonda Michelle Skidmore

LSU Doctoral Dissertations

For a vast majority of Americans, religion is an integral part of life. In fact, 10:30am on Sundays is considered the most holy time in the United States as most persons have just left, are currently attending, or are on their way to their various places of worship. Believing in organized religion comes with challenges, as religion has often been the basis and justification for discriminatory practices. These challenges can cause emotional tension, especially to those who identify with teachings that religions have traditionally condemned. This document sought to determine if religion matters to lesbian, gay, bisexual, and transgender (LGBT) …


Empirically Tuning Hpc Kernels With Ifko, Md Majedul Haque Sujon Jan 2017

Empirically Tuning Hpc Kernels With Ifko, Md Majedul Haque Sujon

LSU Doctoral Dissertations

iFKO (iterative Floating point Kernel Optimizer) is an open-source iterative empirical compilation framework which can be used to tune high performance computing (HPC) kernels. The goal of our research is to advance iterative empirical compilation to the degree that the performance it can achieve is comparable to that delivered by painstaking hand tuning in assembly. This will allow many HPC researchers to spend precious development time on higher level aspects of tuning such as parallelization, as well as enabling computational scientists to develop new algorithms that demand new high performance kernels. At present, algorithms that cannot use hand-tuned performance libraries …


Microcavity Enhanced Beaming And Magneto-Optical Switching Of Light, Ali Haddadpour Jan 2017

Microcavity Enhanced Beaming And Magneto-Optical Switching Of Light, Ali Haddadpour

LSU Doctoral Dissertations

In this dissertation, we show numerically that a compact structure, consisting of multiple optical microcavities at both the entrance and exit sides of a subwavelength plasmonic slit, can lead to greatly enhanced directional transmission through the slit. The microcavities increase the resonant enhancement of the emission in the normal direction and/or the coupling between free space waves and the slit mode. An optimized structure with two microcavities on both the entrance and exit sides of the slit leads to ~ 16 times larger transmission cross section per unit angle in the normal direction compared to the optimized reference slit without …


Thoreau's Melancholia, Walden's Friendship, And Queer Agency, Julia Morgan Leslie Jan 2017

Thoreau's Melancholia, Walden's Friendship, And Queer Agency, Julia Morgan Leslie

LSU Doctoral Dissertations

Walden queers its readers. While many have investigated Thoreau’s queerness, there has been little notice of Walden’s queerness. This project begins with a situational analysis that identifies the melancholic antecedents of Walden in Thoreau’s life and his choices that led to the illumination of his melancholia. Thoreau had already been experimenting with what Branka Arsić identified as “literalization.” Nevertheless, a period of crisis, detailed by Robert Milder, made him aware of what Nicolas Abraham and Maria Torok have referred to as the melancholic’s blind skill of “demetaphorization.” I suggest that Thoreau exploited this skill to produce Walden’s unique …


Disease, Bread, Efficiency: Rhetorics Of Victorian Education Reform, Vicki Jean Davis Jan 2017

Disease, Bread, Efficiency: Rhetorics Of Victorian Education Reform, Vicki Jean Davis

LSU Doctoral Dissertations

Disease, Bread, Efficiency: Rhetorics of Victorian Education Reform arose from my observation that, historically speaking, Anglo-American schools have always been “in crisis.” I argue that the crisis of the “failing school” is a rhetorical problem rather than an economic problem as most scholarship suggests. Much like the cultural myth of “the One True Love,” education reform debates tend to position the school as an institution that can rescue the nation from all perceived social ills. Not only is this unrealistic, the patterns of language are inconsistent as ideas about the purpose of school are translated into policy. This causes further …


A Presynaptic Role For Nitric Oxide At A Gabaergic Synapse, John Wesley Maddox Jan 2017

A Presynaptic Role For Nitric Oxide At A Gabaergic Synapse, John Wesley Maddox

LSU Doctoral Dissertations

Amacrine cells are a class of retinal interneurons that process the visual signal in the inner retina. Several subtypes of amacrine cells express nitric oxide synthase and produce nitric oxide (NO), making NO a possible regulator of amacrine cell function. My dissertation research tests the hypothesis that NO alters amacrine cell GABAergic synaptic output. To investigate this, I made whole-cell voltage clamp recordings of cultured chick amacrine cells receiving synaptic input from other amacrine cells and Ca2+ imaging of amacrine cell dendrites, which can be presynaptic. I find that NO-dependent increases in GABAergic spontaneous postsynaptic current (sPSC) frequency are …


The White Bicycle: Performance, Installation Art, And Activism In Ghost Bike Memorials, Nicole Marie Costantini Jan 2017

The White Bicycle: Performance, Installation Art, And Activism In Ghost Bike Memorials, Nicole Marie Costantini

LSU Doctoral Dissertations

In this project I examine the performative nature of the ghost bike memorial. Ghost bikes, flat-white painted immobile bicycles created by cycling communities and loved ones of victims, are installed roadside to mark the locations of cycling related deaths. Using critical performance ethnography and critical-cultural analysis as methods, I analyze how the ghost bike performs as an artifact of mourning and inspires co-incident performances of grief, activism, and community building and maintenance. As a memorial object used worldwide to represent cycling culture, the ghost bike acts as a social network link that connects a multitude of diverse cycling communities. I …


A Phenomenological Investigation Into The Experiences And Perceptions Of Teachers Education Program Graduates At Public Historically Black College And Universities In Louisiana, La'quita Maya Magee Jan 2017

A Phenomenological Investigation Into The Experiences And Perceptions Of Teachers Education Program Graduates At Public Historically Black College And Universities In Louisiana, La'quita Maya Magee

LSU Doctoral Dissertations

As a growing number of students from racially and culturally diverse backgrounds enter United States’ public schools, fundamental changes in our educational system are essential to ensure the educational equity and academic achievement of all students. Historically, students from diverse racial, cultural, and linguistic backgrounds perform lower on multiple indicators of school success than their White counterparts (Howard, 2015; Ladson-Billings, 2000, 2009). Scholars and theorists attribute the low academic performance of students of color to two obtrusive and related factors: the disparity between the demographic profiles of teachers and student, and the absence of multiculturalism and culturally responsive pedagogy in …


The Machine Gun Hand: Robots, Performance, And American Ideology In The Twentieth Century, Benjamin Michael Phelan Jan 2017

The Machine Gun Hand: Robots, Performance, And American Ideology In The Twentieth Century, Benjamin Michael Phelan

LSU Doctoral Dissertations

Twentieth-century Marxist philosopher Louis Althusser argued in his famous essay “Ideology and Ideological State Apparatuses” that capitalism reproduces itself by interpellating individuals as subjects. For Althusser, the subject has a dual definition: a person who imagines him or herself to be a free subject who then “chooses” capitalism, and a person who, once they have “chosen” capitalism, gives up their free will to the Subject (Law, God, Authority, the State). This dual definition of the subject mirrors the dual definition of “robot.” A robot is both a mechanical being that moves on its own and a person who acts in …


Social Work Practitioners Working In End Of Life Care:Learning To Provide Culturally Appropriate Care To Clients Of Middle Eastern Descent, Laura Shafica Meiki Jan 2017

Social Work Practitioners Working In End Of Life Care:Learning To Provide Culturally Appropriate Care To Clients Of Middle Eastern Descent, Laura Shafica Meiki

LSU Doctoral Dissertations

This study utilized an interpretive qualitative methodological approach to learn about the experiences of individuals with a Master of Social Work degree (MSWs) working in end-of-life (EOL) care with patients of Middle Eastern descent and their families. Specifically, it examined (1) how a sample of social workers obtained the skills necessary to provide culturally appropriate EOL care to clients and families of Middle Eastern descent; (2) the common intervention strategies social workers employ while providing this care; and (3) the recommendations they offer to others who anticipate encountering this population in their own practice. Data collection consisted of in-depth, semi-structured …