Digital Commons Network^™

The Importance Of Disclosing Cybersecurity Risks And Incidents In A Company’S 10-K, Anna Duplechin

Honors Capstones

No abstract provided.

Louisiana Agriculture Spring, 2020, Lsu Agcenter

Louisiana Agriculture

No abstract provided.

The Liquid Argon In A Testbeam (Lariat) Experiment, R. Acciarri, C. Adams, J. A. Asaadi, M. Backfish, W. Badgett, B. Baller, O. Benevides Rodrigues, F. D.M. Blaszczyk, R. Bouabid, C. Bromberg, R. Carey, R. Castillo Fernandez, F. Cavanna, J. I. Cevallos Aleman, A. Chatterjee, P. Dedin, M. V. Dos Santos, D. Edmunds, M. Elkins, C. Escobar, J. Esquivel, J. Evans, A. Falcone, A. Farbin, W. Flanagan, B. T. Fleming, W. Foreman, D. Garcia-Gamez, D. Gastler, T. Ghosh, R. A. Gomes, E. Gramellini, R. Gran

Faculty Publications

The LArIAT liquid argon time projection chamber, placed in a tertiary beam of charged particles at the Fermilab Test Beam Facility, has collected large samples of pions, muons, electrons, protons, and kaons in the momentum range 0∼30-0140 MeV/c. This paper describes the main aspects of the detector and beamline, and also reports on calibrations performed for the detector and beamline components.

Creating And Producing Immersive Theatre Performances In Found Spaces, Anthony Doyle

Honors Capstones

No abstract provided.

Spring 2020 Catalog, Lsu Press

LSU Press Seasonal Catalogs

No abstract provided.

Efficacy Of Entomopathogenic Nematodes Against The Sugarbeet Wireworm, Limonius Californicus (Mannerheim) (Coleoptera: Elateridae), Ramandeep Kaur Sandhi, David Shapiro-Ilan, Anamika Sharma, Gadi V.P. Reddy

Faculty Publications

Wireworms, the larval stage of click beetles (Coleoptera: Elateridae), are economically important soil-dwelling pests that attack many field crops worldwide. Wireworms have become a serious threat to spring wheat in the Northern Great Plains because of lack of effective control measures, creating a need for alternative control methods such as biological control with entomopathogenic nematodes (EPNs). A laboratory bioassay was used to test ten EPN strains and identify infective EPN strains against the sugarbeet wireworm, Limonius californicus (Mannerheim) (Coleoptera: Elateridae). Steinernema carpocapsae (Weiser) (All and Cxrd strains) and S. riobrave Cabanillas, Poinar, and Raulston (355 and 7–12 strains) killed 60–70% …

Generating Transgenic Animals To Understand The Role Of The Huckebein (Hkb) Transcription Factor In Positioning Tissue Invagination, Samantha Leigh Vercher

Honors Capstones

No abstract provided.

Towards Better Evidence-Informed Global Action: Lessons Learnt From The Lancet Series And Recent Developments In Physical Activity And Public Health, Ding Ding, Andrea Ramirez Varela, Adrian E. Bauman, Ulf Ekelund, I. Min Lee, Gregory Heath, Peter T. Katzmarzyk, Rodrigo Reis, Michael Pratt

Population and Public Health Science Faculty Publications

In the past few decades, the field of physical activity has grown and evolved in scope, depth, visibility and impact around the world. Global progress has been observed in research and practice in physical activity regarding surveillance, health outcomes, correlates/determinants, interventions, translation and policy. The 2012 and 2016 Lancet series on physical activity provide some of the most comprehensive global analysis on various topics within physical activity. Based on the Lancet series and other key developments in the field, literature searches, and expert group meetings and consultation, we provide a global summary on the progress of, gaps in and future …

Joint International Consensus Statement For Ending Stigma Of Obesity, Francesco Rubino, Rebecca M. Puhl, David E. Cummings, Robert H. Eckel, Donna H. Ryan, Jeffrey I. Mechanick, Joe Nadglowski, Ximena Ramos Salas, Phillip R. Schauer, Douglas Twenefour, Caroline M. Apovian, Louis J. Aronne, Rachel L. Batterham, Hans Rudolph Berthoud, Camilo Boza, Luca Busetto, Dror Dicker, Mary De Groot, Daniel Eisenberg, Stuart W. Flint, Terry T. Huang, Lee M. Kaplan, John P. Kirwan, Judith Korner, Ted K. Kyle, Blandine Laferrère, Carel W. Le Roux, La Shawn Mciver, Geltrude Mingrone, Patricia Nece, Tirissa J. Reid, Ann M. Rogers, Michael Rosenbaum, Randy J. Seeley

Division of Basic Science Faculty Publications

People with obesity commonly face a pervasive, resilient form of social stigma. They are often subject to discrimination in the workplace as well as in educational and healthcare settings. Research indicates that weight stigma can cause physical and psychological harm, and that affected individuals are less likely to receive adequate care. For these reasons, weight stigma damages health, undermines human and social rights, and is unacceptable in modern societies. To inform healthcare professionals, policymakers, and the public about this issue, a multidisciplinary group of international experts, including representatives of scientific organizations, reviewed available evidence on the causes and harms of …

A New Proposal For The M + A Methodology In Segregating Populations Of Cowpea, Renata Fernandes De Matos, Antônio Moreira Barroso Neto, Júlio César Dovale, Cândida Hermínia Campos De Magalhães Bertini, Roberto Fritsche-Neto

Faculty Publications

The evaluation of segregating populations in plant breeding programs is an onerous and time-consuming process. Early identification of populations with genetic potential can be done by m + a methodology. However, the possibility of a modification in the traditional methodology in order to make it more efficient, that is, faster and cheaper, was envisaged. Thus, the objective of this study was to compare the genetic gains obtained by both methodologies, the traditional one and the proposed modification. For this, ten segregating bean-cowpea populations were evaluated at two distinct levels of homozygous F3:4 and F3:5. Genetic values were predicted by two …

Not Just Stone And Metal Message Effects And Symbols Of The Confederacy In The Contemporary South, Andrew D. Searles

Honors Capstones

No abstract provided.

Summertime: A Mixed-Methodolody Study Exploring The Effects Of A University Career And Professional Development Course As First-Year Student-Athletes Transition Into The University, Lori Simone' Robinson

LSU Doctoral Dissertations

The purpose of this study was to understand what, if any effect, an intervention such as a summer bridge program or course designed for incoming student-athletes had on the participants. Specifically, this study used Gaston-Gales (2004) Student-Athlete Motivation towards Sport and Academics Questionnaire (SAMSAQ) as a pre and post-intervention measure that examined the effect of the Student-Athlete Development Course 101 (SADC 101), which was designed and implemented mainly by athletics department personnel. The three constructs that the SAMSAQ instrument examined were: 1) Academic Motivation (AM), 2.) Student-Athlete Motivation (SAM), and 3.) Career-Athletic Motivation (CAM). The sample population (N=60) included only …

The Choreo-Story Workshops: Devising Body Narratives, Montana J. Smith

LSU Doctoral Dissertations

This multi-methodological project analyzes the utility of the proposed performance method, the Choreo-Story, within the field of Performance Studies. The Choreo-Story is a movement-based performance method, mode of devising, and performance product. It is a performance tool that can be used to understand how embodiment and dance help individuals make sense of the many identities they perform. This method highlights the body as both a text and tool for storytelling. To analyze the Choreo-Story method, I use Kenneth Burke’s Dramatistic Approach to examine three performance acts that occurred in the HopKins Black Box theatre between 2016 and 2018: my …

Investigation Of Tracer-Surfactant-Foam Processes In Shallow Subsurface Environmental Remediation: History-Matching And Performance Prediction, Hazem Fleifel

LSU Master's Theses

In-situ subsurface remediation has been widely used as an efficient means of cleaning up non-aqueous phase liquid (NAPL) from contaminated soils and aquifer. The use of tracer, surfactant, and foam are often considered to keep track of the propagation of injected fluids in the medium, dissolve and mobilize contaminants trapped by capillary forces, and overcome the level of heterogeneity and improve displacement and sweep efficiencies.

This study shows an actual remediation process to reduce NAPL within a military base in South Korea, by injecting tracer and surfactant solutions together for a duration of 10 days. The site consists of 5 …

A Natural Experiment Of State-Level Physical Activity And Screen-Time Policy Changes Early Childhood Education (Ece) Centers And Child Physical Activity, Chelsea L. Kracht, E. Kipling Webster, Amanda E. Staiano

Population and Public Health Science Faculty Publications

Background: Early childhood education (ECE) centers are an important place for preschool-aged children to obtain physical activity (PA). A U.S. state government (Louisiana) recently updated requirements for licensed centers' PA and screen-time policies, which allowed for assessment of 1) ECE center practices, environment, staff behaviors, and policies changes on child-level PA and 2) state level changes on the ECE center. Methods: ECE centers were assessed at the beginning of state licensing changes and 1-year later. The ECE centers were assessed via the Environmental Policy Assessment and Observation (EPAO) tool. The EPAO Sedentary Opportunities score, which primarily assesses television viewing time, …

Examining Political Ambition: Competition And Leadership In Youth Activities, Ashley Staszak

LSU Master's Theses

Significant amounts of previous research focused on political ambition as a source of the gender gap in representation (Beyer and Bowden 1997; Pajares 2002; Fox 2010; Fox and Lawless 2014). This research looks to examine extracurricular activities (or after-school activities) and the effects they have on political ambition of girls as they grow up. Extracurricular activities provide girls access to competition, risk and female role models which can work to combat gender role socialization and other hindrances to running for political office. Using a survey of 300 undergraduate students at a large southern university, I measure the effect of extracurricular …

The Fantastic Bildwelten Of Wolfgang Harms, Tanya A. Kramer

LSU Master's Theses

Wolfgang Harms is an artist from Nuremberg, Germany, who has not been studied at length in the recent past. This thesis explains why the artist is deserving of study. The first chapter is a biographical introduction to the artist and his early works. The following chapters discuss the importance of Nuremberg and mural painting to Harms. The final chapter will analyze the artist’s place in the historical context of Fantastic Realism and the history of art in general. Overall, the purpose of the thesis is to show how Wolfgang Harms is a unique independent-minded artist, who is deserving of more …

Investigating The Role Of Torc1 And The Transcription Factor Sfp1p In The Regulation Of Hmo1 Gene In Saccharomyces Cerevisiae, Mathew Damien Smith

LSU Master's Theses

HMGB proteins are eukaryotic, chromatin-associated proteins that play roles in both DNA dynamics and transcription regulation. Hmo1p is an HMGB protein in Saccharomyces cerevisiae that behaves somewhat like a hybrid between mammalian HMGB proteins and the metazoan linker histone H1. mTORC1, a protein complex containing the Tor1p kinase and a major regulator of cellular growth, is inhibited by both rapamycin and stress. It has also been shown to not only associate with Hmo1p at various gene promoters, but also regulate the HMO1 gene itself through direct binding. In this study, the Hmo1p-mTORC1 relationship was further investigated through two questions: 1) …

James Kallembach's Antigone: A Conductor's Guide, Dominique Petite

LSU Doctoral Dissertations

James Kallembach’s music has been premiered by acclaimed choral groups such as Seraphic Fire and Lorelei Ensemble. It is a commission by the latter that this dissertation explores. In 2015 Lorelei Ensemble commissioned Kallembach to write a piece for Lorelei Ensemble’s “Witness” program, on the subject of martyrdom as it was conceptualized in ancient and modern times. Kallembach set the Sophocles play, Antigone,with interpolated texts from Sophie Scholl and pamphlets from the White Rose, a group dedicated to resisting the Nazis in Germany during the Second World War. The composition is a forty-minute oratorio for SSSSAAAA choir and …

A Conductor's Guide To Amass By Jocelyn Hagen, Matthew J. Myers

LSU Doctoral Dissertations

Contemporary American composer Jocelyn Hagen grew up in Valley City, North Dakota, where she found an early love for singing, playing instruments, and composing. After completing degrees at St. Olaf College and the University of Minnesota, Hagen began a career as a full-time composer. Her appointment as Composer-in-Residence for The Singers led to her first major multimovement work, amass (2011).

Though Hagen planned to write a traditional setting of the Catholic Mass, she struggled to accept the text of the “Credo” as the only path to salvation. Thus, she substituted spiritual poems from a variety of faith traditions to create …

Inhibiting Iron Mobilization From Bacterioferritin In Pseudomonas Aeruginosa Impairs Biofilm Formation Irrespective Of Environmental Iron Availability, Anabel Soldano, Huili Yao, Josephine R. Chandler, Mario Rivera

Faculty Publications

Copyright © 2020 American Chemical Society. Although iron is essential for bacteria, the nutrient presents problems of toxicity and solubility. Bacteria circumvent these problems with the aid of iron storage proteins where Fe3+ is deposited and, when necessary, mobilized as Fe2+ for metabolic requirements. In Pseudomonas aeruginosa, Fe3+ is compartmentalized in bacterioferritin (BfrB), and its mobilization as Fe2+ requires specific binding of a ferredoxin (Bfd) to reduce the stored Fe3+. Blocking the BfrB-Bfd complex leads to irreversible iron accumulation in BfrB and cytosolic iron deprivation. Consequently, given the intracellular iron sufficiency requirement for biofilm development, we hypothesized that blocking the …

Functions Of Cdk/Cyclin Complexes In Endoreplication Regulation By The Cdk Inhibitor Siamese, Kai Wang

LSU Doctoral Dissertations

Arabidopsis trichome (leaf hair) is a specialized single cell extended from epidermal cell on the leaves, which is a typical endoreplication and is also known as endoreduplication. Several D-type cyclins were tested to check the cell division in trichome, and the trichome expressing either CYCB1;2 or CDKB2;2 cannot trigger cell division, even if simultaneous expression of CYCB1;2 and CDKB2;2 failed to produce mitosis in trichome. Only CYCD3;1 specifically promotes multicellular trichome. cdkb1;1cdbk1;2 double mutants and sim cdkb1;1cdkb1;2 triple mutants exhibit the phenotype similar to the wild type and very limited cell division respectively. Overexpression of a CDKB1;1 dominant-negative construct that …

Social Contexts And Disconnectedness: A Mixed Methods Analysis Of Interrelated Effects Of Families, Peers, And Schools On African American Youth, Danielle R. Eugene

LSU Doctoral Dissertations

Youth disconnection, characterized as no school and no work in emerging adulthood, is widespread in American society with debilitating outcomes for each affected young person. Substantial rates of this phenomenon have been found for all youth groups; however, more recently the disconnection rate for African American youth has increased from 17.2% to 17.9% despite remaining flat or falling for all other major racial and ethnic groups. This study utilized a mixed methods approach to examine features of social contexts that explain how African American youth become disconnected from education and employment. This study involved analyzing qualitative data collected from student …

Finding Music In Chaos: Designing And Composing With Virtual Instruments Inspired By Chaotic Equations, Landon P. Viator

LSU Doctoral Dissertations

Using chaos theory to design novel audio synthesis engines has been explored little in computer music. This could be because of the difficulty of obtaining harmonic tones or the likelihood of chaos-based synthesis engines to explode, which then requires re-instantiating of the engine to proceed with sound production. This process is not desirable when composing because of the time wasted fixing the synthesis engine instead of the composer being able to focus completely on the creative aspects of composition. One way to remedy these issues is to connect chaotic equations to individual parts of the synthesis engine instead of relying …

James I: Monarchial Representation And English Identity, Elizabeth Maria Taylor

LSU Doctoral Dissertations

This work unpacks James’s representational performance and the issues he faced in assimilating himself into English identity during him time on the English throne. He implemented tropes he previously utilized in Scotland, presenting himself as Solomon, David, Constantine, a philosopher-king, and Rex Pacificus. James relied upon print for his public representation, he was an avid writer and seems to have thought of himself as something of a theologian, for he frequently commented upon religious doctrine and paid acute attention to sermons. This dissertation explores his entrance to England, the union debates, the Gunpowder Plot and its remembrance, James’s religious …

Interactions Between Federal Education Tax Credits And State-Based Aid Programs: An Analysis Of State Budgeting For Higher Education, Anna Castrillo Bartel

LSU Doctoral Dissertations

Prior empirical analyses on federal education tax credits have concentrated on the individual and institutional unit of analysis. These outcomes indicate mostly null effects on promoting college enrollments, along with distribution to higher incomes, and mixed results on tuition and fee increases. This analysis utilized institutional and state unit of analysis over a longer timeframe, Tax Year 2001 to Tax Year 2016, using difference-in-differences estimation to analyze the effects of education tax credits. The results indicated states have decreased appropriations to public, two-year institutions (charging less than $4,000) 14% less than their higher-priced counterparts, while states provided more appropriations to …

Understanding And Optimizing Flash-Based Key-Value Systems In Data Centers, Yichen Jia

LSU Doctoral Dissertations

Flash-based key-value systems are widely deployed in today’s data centers for providing high-speed data processing services. These systems deploy flash-friendly data structures, such as slab and Log Structured Merge(LSM) tree, on flash-based Solid State Drives(SSDs) and provide efficient solutions in caching and storage scenarios. With the rapid evolution of data centers, there appear plenty of challenges and opportunities for future optimizations.

In this dissertation, we focus on understanding and optimizing flash-based key-value systems from the perspective of workloads, software, and hardware as data centers evolve. We first propose an on-line compression scheme, called SlimCache, considering the unique characteristics of key-value …

Hyaluronic Acid-Cellulose Composites As Patches For Minimizing Bacterial Infections, Kelsey M. Lopez, Sudhir Ravula, Rocío L. Pérez, Caitlan E. Ayala, Jack N. Losso, Marlene E. Janes, Isiah M. Warner

Faculty Publications

Copyright © 2020 American Chemical Society. A facile method was used to synthesize biocomposites containing differing ratios of hyaluronic acid (HA) and cellulose (CEL). Based on the properties of the individual polymers, the resultant composite materials may have potentially great wound care properties. In the method outlined here, 1-butyl-3-methylimidazolium chloride ([Bmim][Cl]), a simple ionic liquid, was used as the sole solvent without chemical modifiers to dissolve the biopolymers at ratios of 1:1 and 2:1 HA to CEL. This method was completely recyclable since the ionic liquid, [Bmim][Cl], can be recovered. Results from spectroscopic measurements [Fourier transform infrared (FT-IR) and X-ray …

Low-Phosphate Chromatin Dynamics Predict A Cell Wall Remodeling Network In Rice Shoots, Maryam Foroozani, Sara Zahraeifard, Dong Ha Oh, Guannan Wang, Maheshi Dassanayake, Aaron P. Smith

Faculty Publications

© 2020 American Society of Plant Biologists. All Rights Reserved. Phosphorus (P) is an essential plant macronutrient vital to fundamental metabolic processes. Plant-available P is low in most soils, making it a frequent limiter of growth. Declining P reserves for fertilizer production exacerbates this agricultural challenge. Plants modulate complex responses to fluctuating P levels via global transcriptional regulatory networks. Although chromatin structure plays a substantial role in controlling gene expression, the chromatin dynamics involved in regulating P homeostasis have not been determined. Here we define distinct chromatin states across the rice (Oryza sativa) genome by integrating multiple chromatin marks, including …

Video Games, Obesity, And Children, Chelsea L. Kracht, Elizabeth D. Joseph, Amanda E. Staiano

Population and Public Health Science Faculty Publications

PURPOSE OF REVIEW: To examine associations between video game play and obesity in children. RECENT FINDINGS: Based on a scoping review of 26 studies (25 cross-sectional; 1 longitudinal) published in 2013-2018, 14 studies (53%) reported no association between video game play and obesity, and 12 studies reported positive associations. In a review of 8 systematic reviews, there was preliminary evidence on the effectiveness of exergame (physically active) play for weight reduction and to attenuate weight gain but little indication that interventions effectively reduced video game play or general screen time. This review found ambiguous evidence on the extent to which …