Digital Commons Network^™

Evaluating The Impact Of Intrusive Advising On Undergraduate Student Retention, Rebecca E. Caire

LSU Doctoral Dissertations

In this study, I investigated the impact of intrusive advising upon undergraduate student retention. Specifically, I sought to identify the background characteristics of at-risk students at the midterm point in a semester, and whether significant differences existed among students who were retained in comparison with those students who were not retained. In addition, I examined the extent to which intrusive advising interventions predicted student retention when controlling for student demographics. Although the intrusive advising interventions were not statistically significant in this model, several notable findings emerged regarding groups of at-risk students who were more or less likely to be retained …

The Rise And Fall Of Focused Deterrence Initiatives, Chandra Lynore Joseph

LSU Doctoral Dissertations

Following the national uptick of violence across the country, societal angst has once again begun to surface. Those in positions of authority began to look to the criminal justice system for ways to address this cyclical issue. Traditionally, applying law enforcement crackdowns and increased penalties and sanctions to the offenders were the main topics of discussion. However, over the last two decades, problem-oriented policing has begun to emerge. Problem-oriented policing works to identify why things are going wrong and to frame responses using a wide variety of often untraditional approaches (Goldstein 1979). One of the problem-oriented frameworks known as the …

Metamorphosis, Claire M. Kane

LSU Master's Theses

“Metamorphosis” is a product of the symbiotic relationship between my paintings and written narrative and consists of large-scale paintings and written components informed by my research of children’s art, outsider art, Louisiana’s landscapes, performance, artists of influence, mythology, and spiritual texts. The paintings are informed by my own sensory experiences of local landscapes. I utilize these immersions in nature and subsequent studies to create a mode of communication for my narrative to unfold on the canvas. The exhibition consists of seven large scale mixed media paintings and one smaller study mounted on the walls of the gallery space.

Wake With Me, Sarah Nansubuga

LSU Master's Theses

This thesis outlines my research, writing, and performance process, leading up to and reflecting on the final product of my MFA Solo Thesis project. The project is entitled Wake With Me, and its performance is a shamanistic portrayal of a folklore story from my native place of origin; Kampala, Uganda. It is an exploration of the metaphorical loss of cultural identity through the literal loss of a family member, and the journey through story telling as a method to reclaim or preserve what was lost. Throughout the piece, the performer plays the role of narrator, using voice, body and mind …

Developing Management Strategies For Taproot Decline, Xylaria Sp., In Soybean, Myra Purvis

LSU Master's Theses

Soybean (Glycine max) is one of the most important oilseed crops in the world. Taproot decline is a recently discovered disease caused by Xylaria sp., a novel species located within the Xylaria arbuscula aggregate. Foliar symptoms include interveinal chlorosis and necrosis, and upon further investigation, there are often dead plants adjacent within the row. Many other soybean diseases have similar foliar symptoms; therefore, more examination is usually required for proper identification. Soybean debris from previous years is suspected to be the primary source of inoculum. Plants may be infected at any point during the growing season, often …

Factors Affecting Nest Success Of Colonial Nesting Waterbirds In Southwest Louisiana, Karis A. Ritenour

LSU Master's Theses

As the coastline of Louisiana shifts with global climate change, subsidence, and accelerated sea level rise, important breeding islands for colonial nesting waterbirds are disappearing. In many recent studies flooding has been a leading cause of nest failure for a variety of species, especially those that nest on the ground. I examined the nest success of four species of colonial nesting waterbirds with various nesting strategies on Rabbit Island in southwestern Louisiana during 2017 and2018 by determining nest and fledging success. I monitored 855 nests, including 457 Brown Pelicans nests with an estimated hatch probability of 70%, 270 Forster’s Terns …

Verifying Modeling And Audiovisual Stimuli As Strategies For Mastering Guedes Peixoto's Maracatú, Rodrigo Clementino Diniz

LSU Master's Theses

ABSTRACT

Literature has been saying that auditory Modeling can be a useful tool in order to develop or broaden musical interpretive ideas. In the same way, literature ventilates that audiovisual stimuli can be applied to musicians in order to raise emotions that some scholars consider as indispensable when it comes to deliver expressive musical communications. More specifically, research in the Music Performance field points out that Modeling and Audiovisual stimuli are useful strategies in the learning process of building up a musical interpretation, both, fostering expressive tools for aiming musical performance.

This research is intended to empirically verify the applicability …

Assessment Of Excess Thyroid Cancer Risk Following A Hypothetical Radiological Incident In Louisiana And Best-Case Risk Reduction Achieved By Thyroid Blockade, Garrett A. Otis

LSU Master's Theses

Radioactive isotopes of iodine are produced by nuclear power plants as a byproduct of nuclear fission reactions. If these isotopes are released into the environment, such as during a breach of containment, they constitute a health risk to exposed individuals. To mitigate the risk of thyroid cancer due to exposure to radioactive iodine, “iodide prophylaxis,” also known as “thyroid blockade,” can be used, usually by administration of potassium iodide (KI). In some areas of the world, KI has been provided to the general public by their governments as a precautionary measure against potential nuclear power plant incidents. However, in the …

Politics And Religion During The Rise And Reign Of Anne Boleyn, Megan E. Scherrer

LSU Master's Theses

During the 1520s and 1530s England endured a tumultuous time of drastic political change and religious reform. At the heart of it all was Anne Boleyn, whose relationship with King Henry VIII launched the English Reformation and the Royal Supremacy, and whose tragic end became a story passed down through the current day. This work examines Anne’s life, particularly her religion and influence in politics, and the figures who shone and dimmed as she came to power and once she lost everything. Some of the most significant of these figures include Cardinal Thomas Wolsey, Sir Thomas More, Thomas Cromwell, Hugh …

Agricultural Education Teachers' Perceptions And Use Of Environmental Education In Louisiana Schools, Olivia M. Soler

LSU Master's Theses

The purpose of this study was to describe the status of environmental education (EE) in Louisiana high school agriculture classrooms. A census of Louisiana Agriscience Teacher Association (LATA) members was conducted to understand their perceptions, attitudes, and barriers regarding EE implementation. Icek Ajzen’s Theory of Planned Behavior was utilized as the theoretical framework. Data were collected through an online survey research method and analyzed using descriptive statistics. Results suggest that most LATA members incorporate EE into their curriculum relatively sparingly, perceive EE to be beneficial for students, and are in need of funding to incorporate EE into their curriculum as …

Improving Route Choice Models By Incorporating Contextual Factors Via Knowledge Distillation, Qun Liu, Supratik Mukhopadhyay, Yimin Zhu, Ravindra Gudishala, Sanaz Saeidi, Alimire Nabijiang

Faculty Publications

Route Choice Models predict the route choices of travelers traversing an urban area. Most of the route choice models link route characteristics of alternative routes to those chosen by the drivers. The models play an important role in prediction of traffic levels on different routes and thus assist in development of efficient traffic management strategies that result in minimizing traffic delay and maximizing effective utilization of transport system. High fidelity route choice models are required to predict traffic levels with higher accuracy. Existing route choice models do not take into account dynamic contextual conditions such as the occurrence of an …

Synthesis And Characterization Of Polylactide-Pamam “Janus-Type” Linear-Dendritic Hybrids, Indika Chandrasiri, Daniel G. Abebe, Sudipta Gupta, Jon Steven Dal Williams, William D. Rieger, Briana L. Simms, Mahesh Loku Yaddehige, Ye Rim Noh, Molly E. Payne, Alexander W. Fortenberry, Adam E. Smith, Jan Ilavsky, Scott M. Grayson, Gerald J. Schneider, Davita L. Watkins

Faculty Publications

© 2019 Wiley Periodicals, Inc. Herein, we present a facile and comprehensive synthetic methodology for the preparation of polyester-polyamidoamine (PAMAM) (i.e., polyester: polylactide [PLA] (hydrophobic) and polyamidoamine, PAMAM [hydrophilic]) polymers. A library of PLA-PAMAM linear dendritic block copolymers (LDBCs) in which both l and d, l polylactide were employed in mass ratios of 30:70, 50:50, 70:30, and 90:10 (PLA:PAMAM) were synthesized and analyzed. When placed in aqueous media, the immiscibility of the hydrophilic and hydrophobic segments leads to nanophase-segregation exhibited as the formation of aggregates (e.g., vesicles, worms, and/or micelles). By employing both stereochemical configurations of PLA, the differentiation in …

Entropy Bound For The Classical Capacity Of A Quantum Channel Assisted By Classical Feedback, Dawei Ding, Yihui Quek, Peter W. Shor, Mark M. Wilde

Faculty Publications

We prove that the classical capacity of an arbitrary quantum channel assisted by a free classical feedback channel is bounded from above by the maximum average output entropy of the quantum channel. As a consequence of this bound, we conclude that a classical feedback channel does not improve the classical capacity of a quantum erasure channel, and by taking into account energy constraints, we conclude the same for a pure-loss bosonic channel. The method for establishing the aforementioned entropy bound involves identifying an information measure having two key properties: 1) it does not increase under a one-way local operations and …

Louisiana Agriculture Summer, 2019, Lsu Agcenter

Louisiana Agriculture

No abstract provided.

Harnessing Billions Of Tasks For A Scalable Portable Hydrodynamic Simulation Of The Merger Of Two Stars, Thomas Heller, Bryce Adelstein Lelbach, Kevin A. Huck, John Biddiscombe, Patricia Grubel, Alice E. Koniges, Matthias Kretz, Dominic Marcello, David Pfander, Adrian Serio, Juhan Frank, Geoffrey C. Clayton, Dirk Pflüger, David Eder, Hartmut Kaiser

Faculty Publications

We present a highly scalable demonstration of a portable asynchronous many-task programming model and runtime system applied to a grid-based adaptive mesh refinement hydrodynamic simulation of a double white dwarf merger with 14 levels of refinement that spans 17 orders of magnitude in astrophysical densities. The code uses the portable C++ parallel programming model that is embodied in the HPX library and being incorporated into the ISO C++ standard. The model represents a significant shift from existing bulk synchronous parallel programming models under consideration for exascale systems. Through the use of the Futurization technique, seemingly sequential code is transformed into …

Tests Of General Relativity With Gw170817, B. P. Abbott, R. Abbott, T. D. Abbott, F. Acernese, K. Ackley, C. Adams, T. Adams, P. Addesso, R. X. Adhikari, V. B. Adya, C. Affeldt, B. Agarwal, M. Agathos, K. Agatsuma, N. Aggarwal, O. D. Aguiar, L. Aiello, A. Ain, P. Ajith, B. Allen, G. Allen, A. Allocca, M. A. Aloy, P. A. Altin, A. Amato, A. Ananyeva, S. B. Anderson, W. G. Anderson, S. V. Angelova, S. Antier, S. Appert, K. Arai, M. C. Araya

Faculty Publications

The recent discovery by Advanced LIGO and Advanced Virgo of a gravitational wave signal from a binary neutron star inspiral has enabled tests of general relativity (GR) with this new type of source. This source, for the first time, permits tests of strong-field dynamics of compact binaries in the presence of matter. In this Letter, we place constraints on the dipole radiation and possible deviations from GR in the post-Newtonian coefficients that govern the inspiral regime. Bounds on modified dispersion of gravitational waves are obtained; in combination with information from the observed electromagnetic counterpart we can also constrain effects due …

Output Feedback Stabilization By Reduced Order Finite Time Observers Using A Trajectory Based Approach, Michael Malisoff, Frederic Mazenc, Saeed Ahmed

Faculty Publications

We use finite time reduced order continuous-discrete observers to solve an output feedback stabilization problem for a class of nonlinear time-varying systems whose outputs contain uncertainty. Unlike earlier works, our feedback is discontinuous, but it does not contain distributed control terms. Our trajectory based approach is based on a contrac-tivity condition. We illustrate our control in the context of a tracking problem for nonholonomic systems in chained form.

Resetting The Table For People And Plants: Botanic Gardens And Research Organizations Collaborate To Address Food And Agricultural Plant Blindness, Sarada Krishnan, Tara Moreau, Jeff Kuehny, Ari Novy, Stephanie L. Greene, Colin K. Khoury

Faculty Publications

Societal Impact Statement: Food and agricultural plants are integral to human well-being. Due to their universal importance, such plants would appear to represent an ideal entryway by which to address plant blindness. However, with limited opportunities for direct contact with agriculture, many people cannot appreciate the flora that feed us every day. We provide examples of informal education initiatives aimed at increasing public awareness and appreciation of food and agricultural plants, made possible through collaborations between botanic gardens, academic institutions, nonprofits, and agricultural research organizations. We hope these examples encourage and inspire organizations to further utilize food and agricultural plants …

Incentive Mechanisms And Impacts Of Negotiation Power And Information Availability In Multi-Relay Cooperative Wireless Networks, Nanmiao Wu, Xiangwei Zhou, Mingxuan Sun

Faculty Publications

Cooperative relaying is highly affected by the way that the source and relays are incentivized. However, the existing studies have not paid enough attention to the impacts of negotiation power and information availability of the players on the network performance. In this paper, two incentive mechanisms for cooperative relaying are first proposed to explore the influence of negotiation power, wherein the source holds either strong or weak negotiation power. In these two cases, the source posts take-it-or-leave-it offers for the relays and has to negotiate possible deals with the relays, respectively. The relay selection rules and the optimal amounts of …

Development, Validation, And Testing Of The Eating And Food Literacy Behaviors Questionnaire With Young Adult University Students, Kwadernica Rhea

LSU Doctoral Dissertations

The Eating and Food Literacy Behaviors Questionnaire (EFLBQ) was developed, and its validity, reliability, and ability to measure construct changes was established. Items related to the originally proposed domains of food literacy were included in the initial questionnaire, however five, new components were discovered. The second version of the EFLBQ was tested with 257 young adult university students using exploratory factor analysis, and a five-factor model (R²=57.4%) was returned. Cronbach’s alpha coefficients were calculated (health and nutrition=0.89, taste=0.72, food preparation=0.77, planning /decision-making=0.64, and convenience=0.63). A confirmatory factor analysis, with 923 new responses provided evidence of an adequate fit …

In Vitro And In Vivo (Mouse Model) Investigation Of The Efficacy Of Probiotic Bacteria Lactobacillus Casei And Lactobacillus Rhamnosus Incorporated In Tomato Juice, Bennett Atta Dzandu

LSU Doctoral Dissertations

Fruit and vegetable production in Ghana were estimated at 371,811 tons in 2017 with tomatoes ranked among the top four most cultivated vegetables. The majority of the production goes to waste due to spoilage and lack of processing. Probiotics have recently gained much attention owing to claims about their potential health benefits. However, the inability of certain probiotics to survive gastric conditions remain a potential setback. Tomatoes can be processed into value added products including those fortified with probiotics. Such value-added products can be used as protectant for the delivery of probiotics to improve gut health. The objective of this …

The Impact Of Formal Panhellenic Recruitment On The Development Of Efficacy For Sorority Women, Amanda Jill Horvat

LSU Doctoral Dissertations

Little to no research has been conducted to assess the impact of formal sorority recruitment processes on efficacy levels of sorority women. While numerous studies have been conducted concerning the development of individual women and skills gathered throughout their collegiate experience, there has been limited research on how participation in sorority recruitment may impact psychological and physiological states, and increase or decrease self and collective efficacy.

If the original intent of sororities was to provide friendship, support, and encouragement, are current formal recruitment methods, supported by the National Panhellenic Conference, meeting that goal? Addressing this question requires an in-depth understanding …

Large-Scale Data Analysis And Deep Learning Using Distributed Cyberinfrastructures And High Performance Computing, Richard Dodge Platania

LSU Doctoral Dissertations

Data in many research fields continues to grow in both size and complexity. For instance, recent technological advances have caused an increased throughput in data in various biological-related endeavors, such as DNA sequencing, molecular simulations, and medical imaging. In addition, the variance in the types of data (textual, signal, image, etc.) adds an additional complexity in analyzing the data. As such, there is a need for uniquely developed applications that cater towards the type of data. Several considerations must be made when attempting to create a tool for a particular dataset. First, we must consider the type of algorithm required …

The Religion Of Policing: Race, Riots, And The Killing Of Alton Sterling, Landon Jay Douglas

LSU Doctoral Dissertations

Deadly force encounters with black people and law enforcement officials are far too numerous and encounters that result in the death of civilians do not always result in disciplinary actions against officers, many of whom are white. The high-profile killings of black people in America require an in-depth analysis of race, policing, and the origins of tactics used by law enforcement against black people, which is not merely data-driven, but also theory driven. In trying to understand the disparate treatment experienced by black people at the hands of law enforcement officials, and the extent to which many Americans, mostly white …

Developmental Regression In Children With Autism Spectrum Disorder: Associated Factors And Outcomes, Jasper Abarte Estabillo

LSU Doctoral Dissertations

Autism spectrum disorder (ASD) is an increasingly common neurodevelopmental disorder characterized by deficits in socialization skills and the presence of restricted and repetitive behaviors. In addition to a number of medical and psychological comorbidities, ASD is associated with a complex phenomenon: developmental regression (i.e., loss of skills in developmental domains). Although present in other disorders (albeit rare), developmental regression is prevalent among individuals with ASD. Thus, interest in studying the phenomenon has grown. However, research on associated risk factors and outcomes is limited and findings have been inconsistent. The current study had two aims: (1) examine potential factors associated with …

Exploring The Link Between Students’ Usage Of Aleks And Their Performance On State Benchmark Assessments In Mathematics, Verna Marie Richard

LSU Doctoral Dissertations

The purpose of this mixed methods study was to investigate relationships between students’ ALEKS usage, teachers’ implementation of ALEKS, and student performance on the 2017 – 2018 LEAP 2025 mathematics assessment. The quantitative portion of the study involved district-level analyses and teacher-level analyses that explored relationships between students’ ALEKS usage and LEAP performance. The qualitative portion of the study took into consideration previous research findings that have reported associations between program implementation and student achievement. This portion of the study included thematic analyses that examined the following relationships: ALEKS implementation in relation to teacher groups (i.e., RtI 8, Math 8, …

Iron-Sulfur Cluster Biosynthesis In Methanogens, Cuiping Zhao

LSU Doctoral Dissertations

Methanogens live in a syntrophic consortium with bacteria, taking advantage of the metabolic abilities of their syntrophic partners to overcome energetic barriers and break down compounds that they cannot digest by themselves. Interspecies electron transfer, which is a major type of microbial communication in syntrophic processes, improves methanogenesis and anaerobic oxidization of methane (AOM) processes involved in syntrophic consortia. These processes have a significant impact on the global carbon cycle. Most of the essential enzymes involved in methanogenesis are iron-sulfur proteins. Iron-sulfur clusters are one of the oldest and most versatile cofactors present in all domains of life. To date, …

Can Cooler Heads Prevail? New Media Technology And Affective Polarization, Brian Kendall Watson

LSU Doctoral Dissertations

Are new media technologies stirring up negative partisan feelings in the American public? Can researchers find ways of using new media tools to reduce affective polarization? Relying on a series of experiments featuring online newsfeeds and social media discussions, this dissertation seeks to answer these questions by testing the influence of partisan news and political discussions in realistic Internet environments. Two custom news “portals” (2016, 2018) expose participants to actual partisan news content. Two Facebook discussion experiments (2017, 2019) randomly assign participants to start real political discussions on their personal social media accounts, using discussion-initiation strategies designed to reduce partisan …

Characterization Of The Integrated Signaling Network Of Burkholderia Glumae For The Regulation Of Virulence-Related Function In The Bacterial Pathogenesis Of Rice Plants, Tiago De Paula Lelis

LSU Doctoral Dissertations

Bacterial panicle blight of rice (BPB) caused by Burkholderia glumaeis a major bacterial disease of rice in many rice-producing areas worldwide. Managing the disease is still very difficult due to the lack of effective methods. B. glumaestrains show phenotypic and genomic variations; however, little variation was detected in the known virulence-related genes. In the present study, the complete genome of B. glumae257sh-1, a natural avirulent strain, was sequenced and analyzed. Several spontaneous mutations in the regulatory genes of these avirulent strains were identified. Presumably, the accumulation of these mutations can have a negative effect on the normal …

"If They Don't Tell You, The Hair Will": Hair Narrative In Contemporary Women's Writing, Darina Pugacheva

LSU Doctoral Dissertations

The history of colonial and racial oppression made hair stories and testimonials fundamental to understanding hair as a unifying element particular for women of African descent in the post-slavery era. Seen as such, their hair narrations provide the first-person perspective of their life experiences while at the same time inviting a critical investigation of colonial and racial oppression. Contemporary women writers develop these types of narrations into a special language of hair that helps them tell a story that is not apparent or straightforward. This literary device that uses hair to uncover deeper social and political issues is bound up …