Digital Commons Network^™

Experimental Tests And Numerical Study Of Trajectories Of Different Types Of Dropped Objects, Yi Li

LSU New Orleans Theses and Dissertations

In marine and offshore engineering, dropped objects, such as drill pipes, anchor chains, containers and some small parts, can accidentally fall into the water from ships or offshore platforms, causing casualties on deck or damage to underwater equipment. Damaged equipment can further harm the environment, such as oil spills from damaged wellheads. Therefore, for safe engineering and environmental protection reasons, we need to develop methods and tools that can predict the trajectory of dropped objects.

In this dissertation, we first study containers dropped from ships. More and more containers are falling into the sea due to bad weather. Containers lost …

A Phenomenological Study Of Principals’ Perceptions Of Instructional Leadership In The Context Of Mandated Teacher Evaluation, Gabrielle P. Delatte

LSU New Orleans Theses and Dissertations

The literature on instructional leadership includes the practices in which principals can engage (Stein & Nelson, 2003) and discusses how the principal’s leadership practices can be mediated by the teacher observation tool within the teacher evaluation system (Spillane, Halverson, & Diamond, 2001). However, the literature includes less about how and why leaders enact those instructional leadership practices (Spillane et al., 2001; Spillane, 2006) and how the teacher evaluation tool might or might not be influencing that how and why. The purpose of this qualitative study is to produce a description of how principals perceive the instructional leadership they provide teachers …

Travel Behavior Change And Economic Transition In Gentrified Neighborhoods, Maryam Izadi

LSU New Orleans Theses and Dissertations

Post-industrial cities in the US have experienced social and economic transitions, mostly in declining downtown neighborhoods. This process, known as gentrification, typically involves revitalization that reverses the decline and disinvestment in inner-city neighborhoods. The industrial shift increased the demand for housing near downtown. The employment of college-educated and high-skill workers has been centralized, while low-skilled jobs continue to decline downtown. While the impacts of gentrification on housing and residential displacement is frequently investigated, little attention has been given to its impact on travel behavior change and economic transition, which is the focus of this research. Change in travel behavior is …

Parallel Algorithms For Scalable Graph Mining: Applications On Big Data And Machine Learning, Naw Safrin Sattar

LSU New Orleans Theses and Dissertations

Parallel computing plays a crucial role in processing large-scale graph data. Complex network analysis is an exciting area of research for many applications in different scientific domains e.g., sociology, biology, online media, recommendation systems and many more. Graph mining is an area of interest with diverse problems from different domains of our daily life. Due to the advancement of data and computing technologies, graph data is growing at an enormous rate, for example, the number of links in social networks is growing every millisecond. Machine/Deep learning plays a significant role for technological accomplishments to work with big data in modern …

The Development Of The Interdisciplinary School Violence Prevention Assessment (Isvpa): Exploratory Findings Of A Pilot Study, Lauren B. Clark

LSU New Orleans Theses and Dissertations

School violence is a global concern. Although divergent disciplines (i.e., counseling, psychology, criminology, and sociology) have made efforts to address the concern, student violence continues to occur in schools. Currently, threat assessments are widely supported and utilized to prevent school violence by examining the contributing factors to a student’s threatening communication or behaviors. The purpose of the present research was the initial development of the Interdisciplinary School Violence Prevention Assessment (ISVPA) to be used by school personnel with existing threat assessment procedures in order to connect students to counseling services. Several challenges were experienced during the research (i.e., COVID, Hurricane …

Internal Communication Within An Institution Of Higher Education During The Covid-19 Crisis: A Case Study, Jonathan Boone Clemmons

LSU New Orleans Theses and Dissertations

The purpose of this study was to understand the role internal communication played in shaping perceptions among stakeholders during a major crisis event happening on a university campus. The main question that this study sought to answer was: how did formal and informal communication during the COVID-19 pandemic affect the perception and adoption of changes related to the pandemic? This case study utilized interviews and document analysis to understand both the change process and its accompanying communication. Workplace Social Network Exchange was the guiding theoretical framework utilized to fully understand the professional lives of participants. Four major themes were identified …

Aerodynamics And Vibrations Of A Helicopter Rotor Blade, Mohammad Khairul Habib Pulok

LSU New Orleans Theses and Dissertations

The nature of the aerodynamic environment surrounding a helicopter causes a significant amount of vibration to its whole body. Among different sources of vibrations, the aerodynamic loading on the main rotor blade is the major contributor. Therefore, analyzing a rotor blade's vibration characteristics and aerodynamic behavior becomes essential. The vortex characteristics and the wake surrounding a helicopter rotor blade play an important role because they affect the aerodynamic behavior of the rotor blade. An advanced mathematical and computational model of rotor wake and blade vortex gives a better understanding of the helicopter rotor dynamics. This study develops computational models of …

A Quantitative Study On The Predictive Ability Of Mcat Scores On The Pre-Clinical Grade Point Averages Of Black Medical Students, Bennetta Horne

LSU New Orleans Theses and Dissertations

The purpose of this study was to examine the predictive ability of MCAT scores on the pre-clinical grade point averages of Black medical students. Underrepresented in medicine students, including students of color and those from low socioeconomic backgrounds have often been prevented from pursuing medical education. This is due to the heavy reliance on numeric metrics including undergraduate grade point averages and MCAT scores for admissions decisions. (DeCarvalho et al., 2018; Linville, 2015; Reede, 1999). The research questions employed in this study focused on the relationship between MCAT scores and pre-clinical grades of Black students and the relationship between secondary …

Chromosome Number Evolution, Phylogeography, And The Effects Of Climate Change On Species Distributions In Polyploid Plant Systems, Courtney H. Babin

LSU New Orleans Theses and Dissertations

Polyploidy, a term used to describe organisms with cells having more than two paired sets of chromosomes, is a significant driver of diversification among land plants. Over a century of research has advanced our understanding of polyploidization in some taxa, but polyploid organisms remain understudied. In this dissertation, I investigate chromosome number evolution, phylogeographic structure, genetic differentiation, and the effects of climate change on ploidy level distribution using polyploid plant systems. In the first chapter, I inferred a molecular phylogeny of Allium, an economically important genus that includes cultivated crops and ornamentals, to investigate evolutionary transitions in chromosome number …

Protein-Protein Interaction Prediction From Language Of Biological Coding, Nayan Howladar

LSU New Orleans Theses and Dissertations

Protein-protein interactions in a cell are essential to the characterization and performance of various fundamental biological processes. Due to the tedious, resource-expensive, and time-consuming experimental processes, computational techniques to solve protein pair interaction difficulties have emerged as an active research area in bioinformatics. This research seeks to develop an innovative machine learning-based technique that predicts the interaction of a protein pair based on carefully selected input features and exploits information-rich evolutionary information. We developed a protein-protein interaction predictor, PPILS, that leverages the evolutionary knowledge from the protein language model. We examined several distinct neural network architectures: CNN+LSTM, Transformer, Encoder-Decoder, and …

Facies Analysis Of Terrebonne Basin Using Vibracores And Chirp Seismic Data, Joseph M. Hankerson

LSU New Orleans Theses and Dissertations

This study was conducted in upper and lower Madison Bay as well as Lake Boudreaux in Terrebonne basin located in southcentral Louisiana. This region is part of the recently abandoned Lafourche delta complex (0.6-0.8 kyr). Much of coastal Louisiana is comprised of formerly active delta complexes of the Mississippi River that have undergone subsequent reworking. As more restoration actions are being considered to combat land loss in coastal Louisiana, exploring the framework of a recently abandoned delta complex could aid in these plans. Utilizing core descriptions and CHIRP seismic data, facies analysis was performed to produce cross sections that display …

Synthesis, Derivatives, And Applications Of Structured Nanomaterials, Md Shahidul Islam Khan

LSU New Orleans Theses and Dissertations

Nanomaterials offer abundant applications not accessible in regular bulk structures. A nanotubular structure (nanoscroll or nanotube) is a 1D architecture with distinct properties varying from that of the parent material. The new structure for example provides more surface area and presents more active sites on the structure exterior, interior, or edges. In this research, different nanotubular materials were targeted including nanopeapods (NPPs), nanoscrolls (NScs), and their various derivatives.

Halloysite nanotubes (HNT) were used as pod materials to grow noble metal NPs in their lumen. The synthesis was done rapidly, within 2 minutes at 55 ^⸰C. This allows the growth …

Ocean Wave Prediction And Characterization For Intelligent Maritime Transportation, Pujan Pokhrel

LSU New Orleans Theses and Dissertations

The national Earth System Prediction (ESPC) initiative aims to develop the predictions
for the next generation predictions of atmosphere, ocean, and sea-ice interactions in the scale of days to decades. This dissertation seeks to demonstrate the methods we can use to improve the ESPC models, especially the ocean prediction model. In the application side of the weather forecasts, this dissertation explores imitation learning with constraints to solve combinatorial optimization problems, focusing on the weather routing of surface vessels. Prediction of ocean waves is essential for various purposes, including vessel routing, ocean energy harvesting, agriculture, etc. Since the machine learning approaches …

Auditory Cortical Differences In Children And Adolescents With Chromosome 22q11.2 Deletion Syndrome, Amanda I. Rowan

LSU New Orleans Theses and Dissertations

People with chromosome 22q11.2 deletion syndrome (22q11.2DS) have a complex neurodevelopmental disorder with severe medical, cognitive, and psychiatric challenges including increased risk for developing a psychotic disorder in adulthood. The origins of this risk are not fully understood but atypical brain development is well documented. Hearing loss is also common in this population, yet little is known about the interaction between medical symptoms such as chronic ear infections and hearing loss with brain development in regions implicated in the etiopathology of schizophrenia spectrum disorder (SCZ). The present study used structural magnetic resonance imaging to measure auditory cortical regions of interest …

Static Evolution, Leah R. Scantlen

LSU New Orleans Theses and Dissertations

In Justin Maxwell's theatrical works, the stasis and stagnation of central characters are importantly made materially evident through costuming. For instance, in the play, Marie Antoinette's Head, the stagnation of civilization and society is explored while time zigzags over two thousand years. The movement of time and epochs is told through a colorful array of costumes, also indicating the growth and evolution of characters in each period. The protagonist, Leonardo, however, remains stuck in 1793. In another of Maxwell's works, the one-man, one-act play Exhausted Paint, the painter Vincent Van Gogh experiences a similar inert characterization. In both …

Esg Activities, Political Contributions, And Firm Performance, Ahmed W. Alam

LSU New Orleans Theses and Dissertations

This dissertation is comprised of two distinct empirical papers which I document in two separate chapters. In the first chapter, I empirically examine the impact of banks’ environmental, social, and governance (ESG) practices on banking efficiency. Using a sample of 578 international banks over the years 2011-2019, I employ a data envelopment analysis (DEA) method to estimate banks’ technical efficiency scores. My baseline Tobit regressions reveal that high ESG performance significantly reduces banks’ efficiency. Further, I find that this relationship is non-linear at very high levels of ESG scores. These findings are consistent across the social (S) and governance (G) …

Rituals Of Belonging, Trecha G. Jheneall

LSU New Orleans Theses and Dissertations

This ensemble is a (geo)autobiographical affirmation of the activities of water bodies, fiberboard drum barrel containers, and sound as well as their attendant rituals of belonging amongst People of Sub-Saharan African descent, particularly those belonging to the Caribbean diaspora.

Water as an ever-present life source serves as a dynamic metaphor for Caribbean people’s instinctive travel in and outside of the region’s soluble boundaries. The barrel container, often in transit analogizes the apprehension of displacement, congregation, arrival, or destination towards the desired feeling of security or place.

Elements of ritualistic practices located in migratory movement, music and labor are means of …

The Impact Of Shoreline Stabilization On Sediment Supply And Ecogeomorphology: Assessing Marsh Response To Altered Wave Energies, Lake Borgne, Louisiana, Jessica J. Villers

LSU New Orleans Theses and Dissertations

Shoreline protection structures are a common response to lateral erosion in marshes, but limited studies exist on how they influence sediment supply and the resulting ecogeomorphology. This study investigates the impacts of marine mattresses, geotextile cages filled with riprap, in Lake Borgne, LA. A field study was conducted during cold front passages at a site with marine mattresses and a proximal control site without, collecting measurements of water depth, wave energy, lateral erosion, sediment accumulation, vegetation, and sediment characteristics. Wetlands with marine mattresses attenuated waves more than their natural marsh edge counterparts, which have limited conditions favorable for sedimentation. However, …

Additive Manufacturing Of Variable Contrast Computed Tomography Anatomical Phantoms Using A Single Feedstock In Fused Filament Fabrication, Cory J. Darling

LSU New Orleans Theses and Dissertations

Anatomical phantoms used in biomedical education and training benefit greatly from Fused filament fabrication’s (FFF) ability to rapidly produce complex and unique models. Current materials and methods used in FFF have limited ability to accurately produce phantoms that can mimic the radiological properties of multiple biological tissues. This research demonstrates that the CT contrast of FFF produced models can be modified by varying the concentration of bismuth oxide in acrylonitrile butadiene styrene (ABS) filaments and a tunable CT contrast that mimics the CT contrast ranging from fatty tissue to cortical bone using a single composite filament without introducing artificial image …

Effects Of Organic Matter On Settling Velocity Of Coastal Sediments Used In Coastal Restoration And Marsh Creation Projects, Brittany Roberts

LSU New Orleans Theses and Dissertations

Coastal wetland loss is a critical environmental problem across the United States. These ecosystems provide vital services to people and the environment including erosion control, flood protection, carbon sequestration, and maintenance of water quality. The natural flood protection has already been greatly weakened by coastal land loss in Louisiana and similar deltaic areas throughout the world. If this trend continues, many communities are at severe risk of physical and infrastructural damage. One of the proposed methods to reverse the erosion of the coastal wetlands is marsh creation. Comprehensive characterization of the dredged sediments is crucial in successfully constructing a marsh …

An Examination Of The Underrepresentation Of Black Women In Senior Leadership Roles At Predominately White Institutions (Pwis): Exploring The Narratives Of Mid-Level Managers, Celyn C. Boykin

LSU New Orleans Theses and Dissertations

Abstract

Black women are significantly underrepresented in senior leadership roles, particularly at predominately white institutions (PWIs). The purpose of this study is to examine the experiences of Black women at predominately white institutions who hold mid-level management roles and aspire to advance to senior leadership. This study details the experiences of five Black women who shared their stories of rising above racial and gender oppressions by overcoming stereotypes, understanding the value in mentorships and sponsorships, utilizing their systems of support and being empowered in their relationships with other Black women. Purposeful sampling was used to recruit the study participants. This …

2+2: Academic Success Predictors Of Two-Year Transfer Student Athletes, Shawn Jeffery Waltz

LSU New Orleans Theses and Dissertations

This study addresses the academic success of upper division, NCAA Division I, student athletes who begin their post-secondary academic career at a two-year institution. It is motivated by two research questions: 1) Are predictors of academic success similar for transfer and non-transfer student athletes? 2) Are predictors of academic success similar for transfer student athletes and transfer non-athlete students? Schlossberg’s (1981) theory of transition aided in conceptually framing these research questions.

Data for this study was gathered from three regionally accredited four-year universities located in southern Louisiana, all housing an NCAA Division I athletic program. Multilevel binomial logistic regression was …

Its Time For Representation, Diversity, Equity, And Justice At Theater Uno, Richon May

LSU New Orleans Theses and Dissertations

This document will provide evidence of how white supremacy culture traumatizes Black artists by lowering esteem and devaluing their work. The Black experience in America is traumatic enough, the theater should be a place that allows African Americans of all different educational backgrounds, classes, beliefs, etc. to receive a cathartic experience, abuse free. This case study involves directing Black content, Katori Hall’s “Hoodoo Love”, at a predominantly white institution in hopes of uplifting African Americans and enlightening the rest.

Creating Controversy: An In-Depth Look At The Creation Of Redux, Alexandria Miles

LSU New Orleans Theses and Dissertations

The following thesis will provide a detailed account of the process by which Redux, a devised play produced by The Radical Buffoons, was created. I will explain how I developed various original characters as well as the acting choices I made along the way. I will shed light on the social climate that inspired this piece and the historical implications that influenced our work. Redux was performed on January 28^th, 30^th, 31^st, and February 4^th, 6^th, and 7^th of 2022 at The Hotel Peter Paul in New Orleans, Louisiana.

20,000 Feet Between: The Experiential Disparities Of Precision Bombing In Austrian Bomb Victims And American Bombardiers, 1945, Emily E. Hanish

LSU New Orleans Theses and Dissertations

From November 1944 until May 1945, the 57^th Bomb Wing executed the “Battle of the Brenner” to incapacitate the German war machine. As a result of five campaign missions from March – April 1945, the USAAF not only decimated the village of Matrei am Brenner and Trautson Castle, but also killed dozens of civilians. Recent archaeological excavations at Medieval Trautson Castle prompted serious questions about the USAAF’s bombardment strategies and ethics, especially regarding precision bombing. By analyzing these bombing missions, this thesis will delineate the “Battle of the Brenner” within the evolution of the USAAF’s bombardment doctrine in order …

Capitalism Is The Virus: A Public Receipt Of Financialization In New Orleans 1971-2021, Justin Montrie

LSU New Orleans Theses and Dissertations

This thesis explores the financialization of one residential-commercial corridor in New Orleans, Louisiana. The paper illuminates the transformations of neighborhoods and social spaces wrought by processes of rapidly inflating property values and the displacement of residents. The study works in the field of applied public research by mapping New Orleans property and land records valued through the Orleans Parish Assessor’s office and linking recorded corridor changes to stated goals and partner initiatives at the city level.

Taking specific umbrage with commercial corridor revitalization framework and urban street corridor mapping projects, this thesis offers a reworked lens of historical material analysis. …

“We Won’T Be Silent Anymore”: Enslaved People’S Stories And Symbolic Reparations For New Orleans City Park, Kalie Ann Dutra

LSU New Orleans Theses and Dissertations

The official history of New Orleans City Park, published in 1982 offers a narrow history of its grounds and land ownership before it opened as a park in 1854. The published text Historic City Park New Orleans contains a two-part narrative. The first narrative tells the identity of Louis Allard, his plantation land, and the mystique surrounding his death. The second narrative focuses on John McDonogh, an enslaver and local legend, his purchase of the Allard Plantation, and his donation of the plantation to the city of New Orleans for the creation of what is now lower New Orleans City …

Strain-Based Design Of Steel-Polymer-Steel Composite Pipes, Vul Thang

LSU New Orleans Theses and Dissertations

Many offshore single-wall pipelines and structural failures have occurred in the past. As a result, lives were lost, and billions of dollars were spent. In addition, natural disasters such as earthquake fault zones can cause a large volume of soil movement. This can easily damage single-wall pipelines or piles of fixed offshore platforms in the earthquake fault zone.

Currently, the single-wall pipelines are used for the offshore and onshore oil and gas industry. This research investigated the use of double-wall composite pipe steel-polymer-steel (SPS) in place of single-wall pipe to prevent such failures. The double-wall composite pipe has a larger …

An Exploration Of Bengali Identity With Material And Visual Artifacts Through Painting, Farah Billah

LSU New Orleans Theses and Dissertations

Painting is and always has been, at its root, an exploration of identity for me. My current collection of work explores the stripping of Eurocentric beauty standards and presentation of the divine of the Brown Body to reveal my version of the human spirit. My drawings, paintings, and a hand-tufted rug all made with a surreal, colorful representation of the coming together of body and mind.

Early-Life Acetaminophen Exposure Alters Sex-Specific Social And Mate Preference Behaviors In Adolescent And Adult Rats, Anna G. Warner

LSU New Orleans Theses and Dissertations

Epidemiological studies reported associations between early-life exposure Acetaminophen (APAP) exposure and increased risk of Autism Spectrum Disorder (ASD). Rodent studies parallel epidemiological reports, with APAP-exposed animals showing more abnormal social and increased repetitive behaviors. However, mechanisms underlying sex-specific behavioral responses to APAP remain unclear. Here, a rat model was developed to examine possible interactions between APAP and early-life hormonal milieus during the neonatal period of brain sexual differentiation. Subcutaneous (s.c.) injections of either 17�-Estradiol (E2; masculinized) or Letrozole (LTZ; feminized) were administered from Postnatal Days (PD) 1-11 followed by either APAP or saline 45 min after the first injection on …