Digital Commons Network^™

Gifts And Commodities: A Dialectical Thought Experiment For Sublation, Ruirui Zhang, Joseph D’Andrea, Chunmin Lang

Faculty Publications

The core motivation for this study is the realization that the Sustainable Development Goals (SDGs) encounter temporary obstacles, conflicts, or inconsistencies that impede progress and generalization. According to the authors, sustainable development across social, environmental, and economic dimensions is unlikely to occur without redefining the meaning and recalibrating the metrics used to measure commodities. These meanings and metrics must align with values such as general reciprocity, morality, and the common good, going beyond mere calculations of means and ends and personal preferences. The research has three primary objectives: first, to compare and reassess the meanings and responsibilities assigned to “items” …

Nearly-Lossless-To-Lossy Medical Image Compression By The Optimized Jpegxt And Jpeg Algorithms Through The Anatomical Regions Of Interest, Zhongqiang Li, Alexandra Ramos, Zheng Li, Michelle L. Osborn, Waleed Zaid, Xin Li, Yanping Li, Jian Xu

Faculty Publications

Currently, plenty of image data is generated that complicate storage and image transmission. Great efforts have been attempted on how to increase compression ratio (CR) without loss of critical diagnostic information. In this study, we designed two optimized JPEGXT (JPEGXT_OPT) and JPEG (JPEG_OPT) approaches by amplifying discrete cosine transform coefficients and using the entire anatomical region as ROI (region of interest). We found that ROI percentages have a great impact CR: smaller ROI percentages (10–30 %) could obtain a larger CR. Under the near-lossless compression, JPEGXT_OPT could have CRs up to 4.0 under small ROI percentages (10–30 %), while only …

The State Of Architectural Labor, Ivy Mcclure

Honors Capstones

No abstract provided.

Exploring Young People’S Attitudes Toward Affirmative Consent Policies, Grace Keller

Honors Capstones

No abstract provided.

Identity Validation, Bisexuality, And Online Community: A Qualitative Analysis Of Reddit Discussions, Elizabeth Haik

Honors Capstones

No abstract provided.

On The Application Of Probabilistic Decline Curve Analysis To Unconventional Reservoirs, U. C. Egbe, O. O. Awoleke, O. M. Olorode, S. D. Goddard

Faculty Publications

Several authors have worked on combining decline curve analysis (DCA) models and stochastic algorithms for probabilistic DCAs. However, there are no publications on the application of these probabilistic decline curve models to all the major shale basins in the United States. Also, several empirical and analytical decline curve models have been developed to fit historical production data better; there is no systematic investigation of the relevance of the efforts on new model development compared with the efforts to quantify the uncertainty associated with the “noise” in the historical data. This work compares the uncertainty associated with determining the best-fit model …

Regenerative Medicine For Tendon/Ligament Injuries: De Novo Equine Tendon/Ligament Neotissue Generation And Application, Takashi Taguchi

LSU Doctoral Dissertations

Tendon and ligament injuries are debilitating conditions across species. Poor regenerative capacities of these tissues limit restoration of original functions. The first study evaluated the effect of cellular administration on tendon/ligament injuries in horses using meta-analysis. The cellular administration was effective in restoring ultrasonographic echogenicity and increasing vascularity during early phase of healing. Additionally, it improved microstructural organization of healed tissue in terms of cellularity and fiber alignment. However, the study did not support its use for increasing rate of return to performance, expression/deposition of tendon-specific genes/proteins, or mechanical properties.

The findings led to the second study that engineered implantable …

Decolonial Queer Poetic, Aparajita Dutta

LSU Doctoral Dissertations

Queer bodies, produced by poetry, conjure dissident bodies who exist as citizens within the scope of the nation. In this analysis, I take into consideration Indian queer poetry, from both India and the diaspora, because bodies produced through this poetry reveal intersectional identities of queerness like race, and caste, that will help us understand how non-normative bodies exist along with other forms of marginalized identities like caste and race. In absence of academic scholarship on Indian queer poetry’s connection to the construction of nationhood, I aim to survey Indian queer poetry from mainland India and the Northern American diaspora, and …

Synergistic Role Of Temperature And Salinity In Aggregation Of Nonionic Surfactant-Coated Silica Nanoparticles, Yingzhen Ma, Christian Heil, Gergely Nagy, William T. Heller, Yaxin An, Arthi Jayaraman, Bhuvnesh Bharti

Faculty Publications

The adsorption of nonionic surfactants onto hydrophilic nanoparticles (NPs) is anticipated to increase their stability in aqueous medium. While nonionic surfactants show salinity- and temperature-dependent bulk phase behavior in water, the effects of these two solvent parameters on surfactant adsorption and self-assembly onto NPs are poorly understood. In this study, we combine adsorption isotherms, dispersion transmittance, and small-angle neutron scattering (SANS) to investigate the effects of salinity and temperature on the adsorption of pentaethylene glycol monododecyl ether (C12E5) surfactant on silica NPs. We find an increase in the amount of surfactant adsorbed onto the NPs with increasing temperature and salinity. …

Coded Ceramics: Computational Design Of Persian Ceramics, Nasrin Iravani

LSU Doctoral Dissertations

This research explores the use of computer-aided technology and robotics in the creation of digital art and crafts, while also considering the cultural history of digital design. It begins with an examination of the most recognizable styles of Persian ewers made between the years 1,000 and 1,400 AD in the Islamic era. After analyzing a hundred ewers from this period, I classified them based on distinctive features such as openings, necks, bodies, spouts, handles, and bases. Then I designed a series of 3D printed ceramic vessels – titled Coded Ceramics – that were inspired by elements of the historic ewers. …

Symmetric Functions Algebras (Sfa) Ii: Induced Matrices, Philip Feinsilver

Journal of Stochastic Analysis

No abstract provided.

Integrating Germplasm Repositories Into Oyster Aquaculture Systems At The Pathway, Center, And Network Levels, Sarah R. Bodenstein

LSU Doctoral Dissertations

Germplasm repositories offer many potential benefits to commercial farm operations, including preserving genetic resources and increasing production capabilities. Aquaculture industries have yet to take advantage of repository storage despite decades of research evaluating cryopreservation protocols. Eastern oysters (Crassostrea virginica), for example, are a useful research species when addressing this problem. Oysters are an economically important aquaculture species and a high-throughput cryopreservation method for oysters already exists. To address the gap between protocol research and commercial application a different approach is necessary that can analyze the requirements of repository development at multiple organizational levels. The goal of this dissertation was to …

Shape Memory Polymer-Based Multifunctional Syntactic Foams, Siavash Sarrafan

LSU Doctoral Dissertations

With the increase in popularity of shape memory polymers (SMPs), especially in applications such as aerospace, textile, biomedical engineering, and even structures, the weight of the material and the devices made with it has always been a crucial factor. Using the shape memory polymer as a matrix to make a syntactic foam is one of the best and most affordable approaches to creating a lighter material that still has the shape memory effect. The addition of particles of different stiffness, strength, and size, with variable fractions, creates a composite that enables engineering the mechanical, as well as other physical and …

Dicotomía: Context, Aesthetic, And Performance Of The Symphonic Works Of Margarita Luna García, Gabriela Sofía Gómez Estévez

LSU Doctoral Dissertations

Dominican women had an active role in the musical life and discourse of the Dominican Republic in the twentieth century and made substantial contributions as composers, performers, pedagogues, and scholars. Margarita Luna García (1921-2016), Dominican composer and pedagogue, was one of the most notable figures of avant-garde music in the Dominican Republic in the twentieth century. Numerous modernist trends converge in her works including serialism, indeterminacy, and graphic notation. Influenced by Paul Hindemith, Béla Bartók, Krzysztof Penderecki, and Dominican composer Manuel Simó, her works synthesize vernacular musical material and modernist techniques. Luna García’s orchestral works make use of folk rhythms, …

Utilizing A Text-Mining Approach To Investigate Consumers’ Perception Of Secondhand Fashion Consumption: Mass-Market Vs. Luxury Market, H M Rakib Ul Hasan

LSU Doctoral Dissertations

The dissertation aimed to investigate (i) the difference in consumer perception between the mass-market and luxury market of secondhand fashion services, (ii) determine the types of value and strategies that can be adopted into mass-market SHF from luxury SHF business platforms, (iii) investigate the word-of-mouth communication of mass-market SHF consumers, and (iv) investigate the consumer perception of the ‘quality’ and ‘fashionability’ of the mass-market SHF product. Two studies were designed to address the research questions due to the nature of available data. The data were collected from third-party consumer review sites where consumers can review their perception of secondhand fashion …

Development, Survival, And Fecundity Of Helicoverpa Zea (Lepidoptera: Noctuidae) On Five Weedy Host Plants Common Across The Mid-South Usa, James P. Glover, Maribel Portilla, Gadi V.P. Reddy

Faculty Publications

Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae) is a highly mobile and polyphagous pest known to feed on over 300 cultivated and wild host plant species. Larvae cause significant economic damage to several commercial row crops over multiple generations each growing season. The objective of this study was to compare biological fitness of H. zea on 5 weedy host plants commonly found across the mid-south US. Crimson clover (Trifolium incarnatum L.), white clover (Trifolium repens L.), hairy vetch (Vicia villosa Roth), kudzu (Pueraria montana [Lour.] Merr. (all Fabaceae), and honeysuckle (Lonicera japonica Thunb.; Caprifoliaceae) were evaluated as primary food sources for H. …

The Reality Of Teaching English Virtually: Esl Teachers' Perspectives And Experiences During The Covid-19 National Pandemic, Natalia Guerrero

LSU Doctoral Dissertations

This study examined the dilemma ESL teachers experienced as the educational system shifted from the usual modus operandi of in-person lessons to the uncharted virtual learning environment (VLE). ESL teachers, in one of the largest urban districts in Louisiana, accumulated additional roles and responsibilities that were unique to the teachers of the English learner (EL) population enrolled at their schools.

Data collected to answer the research questions were the product of single and focus group’s interviews with five ESL elementary and middle school teachers in Freedom District. State and district emergency response to COVID-19 guidelines, along with instructional artifacts, were …

Apocalypse Then And Now: Narrative Influence And Thematic Subversion Of Victorian Literature In Modern American War Narratives, Douglas James Scully

LSU Doctoral Dissertations

In this dissertation, I argue that by looking at the lasting impact of Victorian war literature on a variety of modern media, one can see that an increased cultural awareness of trauma has led to less humane depictions of the traumatized. The multitude of Sherlock Holmes adaptations produced and set in various time periods and covering assorted wars serves as a strong example in my first chapter of how a Victorian-produced text can have a lingering impact, and the veteran Watson serves as a strong tool for adaptors to use when commenting on the shifting nature of war and the …

Optimization Of Host Cell-Compatible, Antimicrobial Peptides Effective Against Biofilms And Clinical Isolates Of Drug-Resistant Bacteria, Jenisha Ghimire, Robert J. Hart, Anabel Soldano, Charles H. Chen, Shantanu Guha, Joseph P. Hoffmann, Kalen M. Hall, Leisheng Sun, Benjamin J. Nelson, Timothy K. Lu, Jay K. Kolls, Mario Rivera, Lisa A. Morici, William C. Wimley

Faculty Publications

Here, we describe the continued synthetic molecular evolution of a lineage of host-compatible antimicrobial peptides (AMP) intended for the treatment of wounds infected with drug-resistant, biofilm-forming bacteria. The peptides tested are variants of an evolved AMP called d-amino acid CONsensus with Glycine Absent (d-CONGA), which has excellent antimicrobial activities in vitro and in vivo. In this newest generation of rational d-CONGA variants, we tested multiple sequence-structure-function hypotheses that had not been tested in previous generations. Many of the peptide variants have lower antibacterial activity against Gram-positive or Gram-negative pathogens, especially variants that have altered hydrophobicity, secondary structure potential, or spatial …

Assessing The Nutritional Value Of Dubia Roaches (Blaptica Dubia) As A Feeder Insect In Reptiles, Elise Barras

LSU Master's Theses

Dubia roaches (Blaptica dubia) have emerged on the market as a high protein and low-fat alternative to other feeder insects for captive reptiles. However, much like other insects, dubia roaches naturally have an inverse calcium to phosphorus (Ca:P) ratio. Offering insects to reptiles that are deficient in calcium can lead to nutritional disease (e.g., nutritional secondary hyperparathyroidism). For dubia roaches to be a valuable feeder insect, their Ca:P ratio must be corrected. Several studies have assessed their nutritional composition, but no studies have manipulated the calcium content of these insects. Using a high calcium (8.3% calcium, dry matter) …

Removal Of Radionuclides Using Capacitive Deionization, Yusik Won

LSU Doctoral Dissertations

Severe nuclear accidents, including the Fukushima nuclear power plant accident, can lead to the discharge of large amounts of radionuclides into aquatic environments. Some radionuclides such as ¹³⁷Cs and ⁹⁰Sr have long half-lives and can remain in the environment for a long period of time. These radionuclides can be detrimental to humans and the environments because they can cause human and environmental exposure to ionizing radiation and because they can be bioaccumulated and biomagnified. Therefore, in case of a severe accident and a radioactive spill, it is important to quickly clean up and treat radioactively contaminated water to …

Influence Of Metabolic Interventions On Animal Aging And Lifespan, Bhaswati Ghosh

LSU Doctoral Dissertations

Aging is associated with metabolic rewiring. Most lifespan-extending longevity interventions target metabolic pathways. Genetic or pharmacological metabolic approaches that mediate longer lifespan and healthspan, are often linked to detrimental effects on human health. Here, I show that supplementation of botanical extracts from Artemisia scoparia (SCO), dramatically increases animal lifespan. Mechanistically, this lifespan extension is dependent on AMPK-DAF-16 signaling via inhibition of the insulin pathway. In SCO-fed worms, longer lifespan was accompanied by higher fat storage and improved resiliency to age-related physiological stress. Notably, DAF-16, the master regulator of longevity, activated the fatty acid desaturation processes, which promoted the accumulation of …

Understanding The Influence Of Colorism On The Dating Preferences Of Black Undergraduate Students At Predominantly White Institutions, Odessa Foster

LSU Master's Theses

This study examined the effects of colorism on emerging Black undergraduate college students and how it influences their dating preferences while attending a Predominantly White Institution. The participants were 18-24 years old and self-identified as Black women attending a PWI. A secondary analysis was conducted. The findings of this study revealed that family can influence emerging Black adults dating preferences as they are likely to have the same preference as their family. There is a significantly positive relationship between family preference and dating preferences. This study also examined the correlation between media/social media and dating preferences. As there were positive …

Seasonal Seepage Fluid Flow And Pressure Detection Beneath Flood Protection Levees In The Lower Mississippi River Valley Using Non-Invasive Geophysical Methods, Daniel Locci

LSU Doctoral Dissertations

This study explores the use of shear-wave seismic reflection and electrical resistivity techniques to complement our understanding of seepage pore pressure variations and soil type estimation beneath earthen levees in the Mississippi River floodplain. The seasonal variations of water level in the river create changes in pore pressure in the adjacent aquifer, which can be detected using time-lapse shear-wave velocity analysis. The seismic reflection patterns during these pressure variations show changes in velocity that can be translated into changes in effective pressure, allowing us to distinguish between confined and leaky aquifers.

In addition, the integration of geophysical methods such as …

In Knowledge We Trust(Ed): A Case Study In Abolition Theatre, Misty Dawn Saribal

LSU Doctoral Dissertations

This dissertation argues for performance art’s role(s) in growing abolition on higher education campuses. After defining abolition’s intersections with higher education, and discussing why performance is often diminished and overlooked, I examine a university abolitionist performance I co-directed that highlighted prison labor on our university’s campus titled ‘In Knowledge We Trusted: Red Tape, White Institutions, and Blue Students.’ A rationale for abolition performance and an abolition performance praxis is detailed with attention to avoiding the pitfalls of authenticity policing in prison abolition and genre policing in abolitionist art. Conclusions about how the performance contributed to and embodied abolition politics and …

Rapid Intensification As A Crucial Hurricane Hazard: Educating And Empowering Young Stakeholders Affected By Hurricanes On The Gulf Coast, Kathleen M. Benedetto

LSU Doctoral Dissertations

In recent decades, the scientific ability to project tropical cyclone (TC) intensities and tracks has improved. Hurricanes undergoing the process of rapid intensification (RI) have created new barriers in formulating predictions of TC paths and peak velocities. Current research suggests the warming climate may produce more intense TCs with a higher probability of undergoing RI during their life cycle. The increased likelihood of rapidly intensifying TCs necessitates the development of an RI climatology spanning the current North Atlantic record. A time series count analysis suggests a significant increasing trend of RI events in the Atlantic basin by 29.1% (17%–45%) from …

Examining The Impact Of Different Street Lighting Schemes On Traffic Safety And Drivers’ Behaviors At Unsignalized Intersections, Hisham Mohamed Abdu Kunnah

LSU Master's Theses

Lack of visibility is one of the main challenges that significantly impact drivers’ ability to safely perform driving tasks at night especially at unsignalized intersections. Several prior studies indicated that lighting enhances nighttime traffic safety. Nevertheless, lighting is not mandatory at unsignalized intersections in many states including Louisiana. This study aimed to investigate if lack of lighting is a contributing factor that affects traffic safety at unsignalized intersections in Louisiana. In addition, this study strived to identify current lighting policies adopted by other states, examine if there are any low-cost countermeasures implemented by other states to improve nighttime visibility, and …

Evaluation Of Reproductive Phenology, Space Use, And Ecology Of The Eastern Wild Turkey (Meleagris Gallopavo Silvestris) In West-Central Louisiana, Chad Argabright

LSU Master's Theses

Nest site selection is a driving demographic force behind eastern wild turkey (Meleagris gallopavo silvestris) populations. However, previous research was likely not focused on the actual time of nest site selection, considering that nest site selection is likely only able to occur on the day of the first egg being laid. My objective was to determine if selection for any vegetation characteristics was occurring on the first day of laying. I estimated the path taken from the roost to the nest on the first day of egg laying (i.e., laying path) using GPS data collected from 164 unique …

The Social Support Experiences Of Attention-Deficit/Hyperactivity Disorder (Adhd) Adults, Lindsay A. Duede, Colter Ray

LSU Master's Theses

Social support researchers commonly recognize that support is most useful when it matches the needs and desires of those receiving it. Yet, the majority of research regarding attention-deficit/hyperactivity disorder (ADHD) and social support frames questions of communication competence by placing neurodiverse communities at odds with neurotypical ones. This practice reinforces a hierarchy in which neurotypical individuals are viewed as correct and deviations from that norm as failures. Individuals with ADHD experience emotions differently than those without it; thus, it stands to reason that people with ADHD could have different needs and desires for support. Therefore, this study has two key …

Effects Of Stereotypes On Black Women Audiences, Darian M. Shorts

LSU Master's Theses

This study focuses on the effects that televised racial stereotypes have on the self-perception of viewers who identify as Black women. This paper lists three commonly used stereotypes for Black women in television and provides detailed background and analysis of each. There were three goals that I wanted to achieve with this study. The first goal of this study was to measure the amount of stereotyped entertainment these specific viewers consume. The second goal of this study was to understand the positive and negative effects that racial stereotypes have on Black women. The last goal of this study was to …