On A Remark Of De Gennes Concerning Three-Dimensional Polyelectrolytes, Shiquan Li, Carl Mueller

Journal of Stochastic Analysis

This work is inspired by a remark of de Gennes [3] about polyelectrolytes, which are charged polymers. A common model for a polymer is a self-avoiding or self-repelling random walk or Brownian motion. For polyelectrolytes, the repelling potential is the Coulomb potential arising from pairs of charged particles. We show that in the continuous case of a Brownian motion in three dimensions, the spread of the polymer, in particular the radius of gyration of a polyelectrolyte of length T grows linearly with T, up to logarithmic corrections.

Une Analyse Intersectionnelle De L'Albinisme Dans L'Instinct De Survie D'Éveline Mankou Et Ses Implications Contemporaines, Gracious Ojiebun, Eiloghosa Enogiomwan

Tête à Tête: Journal of Francophone Studies

Grâce à l'inclusion numérique, l'éducation devient plus interactive, accessible et inclusive, néanmoins, les enfants atteints d'albinisme en sont souvent exclus en raison de préjugés socio-culturels, de l'écart numérique et des barrières sociales systémiques. L'article explore comment les liens entre la culture, la géographie, la religion, le genre et le statut socio-économique peuvent conduire à une marginalisation violente en se servant d'une évaluation critique de L'instinct de survivre d'Evline Mankou, et en utilisant la théorie de l'intersectionnalité de Crenshaw, 1989.

Le roman dépeint un monde où la superstition et les traditions patriarcales condamnent un enfant atteint d'albinisme, tout en offrant un …

Contextualizing Inclusion And Connection In An Absurd World: An Analysis Of Albert Camus’ The Plague, Peter Akongfeh Akongfeh Agwu Ph.D, Peace Onwanua Ph.D., John Ogidi Acha

Tête à Tête: Journal of Francophone Studies

Scholars have extensively analyzed Albert Camus’s The Plaque, while interpreting its narrative through existential and absurdist lenses. However, little literature is recorded on how the novel contextualizes themes of inclusion and human connection amidst an absurd world. This study addresses this gap by examining the dynamics of solidarity and shared resistance among the characters within the framework of Camus’s philosophy of the absurd. The aim is to ex-ray how Camus reconciles the tension between the absurd and the human need for meaning through collective action and emotional bonds. A qualitative methodology is employed, involving a close textual analysis of the …

Digitalverse And The African Narratives: Ai As A New Platform For African Cultural Preservation, Mudasiru Babatunde Sulaiman Mr, Tajudeen Salaudeen

Tête à Tête: Journal of Francophone Studies

Abstract

This article delves into the concept of digital universe as a transforming digital system for the preservation of African culture, with a target on the unique role of artificial intelligence (AI) as a means of storytelling and cultural continuity. For long, there have been problems of availability of sustainable digital infrastructure where African storytelling can be preserved. This study therefore examines the intersection of AI and African storytelling through emerging digital projects, virtual storytelling spaces, and tools that digitize and translate African languages and oral traditions. It argues that AI not only expands the reach of African cultural narratives, …

Cultural And Social Inclusion In Sexe Et Mensonges: La Vie Sexuelle Au Maroc By Leïla Slimani: A Critical Perspective, Juliet N. Elikwu Dr.

Tête à Tête: Journal of Francophone Studies

Several published studies on Leïla Slimani's Sexe et Mensonges: La Vie sexuelle au Maroc have extensively examined the themes of sexual taboos and the challenges facing women in Moroccan society. But, limited attention has been given to her portrayal of cultural and social inclusion through the testimonies and narratives of marginalized women in academic discourse. This study seeks to analyze the dynamics of inclusion and exclusion within the framework of cultural norms and patriarchal structures depicted in the work. The study draws on a qualitative methodology centered on close textual analysis. The theoretical framework integrates Michel Foucault’s concepts of power …

Volatile Evidence At Scale: Forensically Sound Preservation And High-Performance Memory Forensics For Containers And Ros-Based Robots, Taha Gharaibeh Ph.D.

LSU Doctoral Dissertations

Volatile memory holds evidence that reaches persistent storage rarely or never. Containers and robots destroy that evidence as a matter of routine operation rather than through adversarial action, and memory forensic tooling was built for neither platform. This dissertation develops and evaluates a memory-centered approach spanning acquisition, analysis efficiency, and robot forensics, and demonstrates that volatile evidence can be reliably preserved and analyzed at scale across containers and ROS-based robots.

First, we measure why memory forensic analysis is slow. Benchmarking the Volatility Framework across four Python runtimes on 14 memory samples totaling 173 GB shows that PyPy is 15 to …

More Than Just Blocks: Supporting Development Through Block Play In Early Childhood, Stephanie Szanter, Carrie L. Ota

Spark! Innovations in Early Childhood Education: A Research-to-Practice Journal for Educators

Block play is much more than a classroom center; it is a place where children explore ideas, solve problems, communicate, and work together in meaningful ways. This article examines how block play supports children’s social-emotional, cognitive, physical, and language development through hands-on experiences that feel natural and engaging. Using classroom examples and current research, the article highlights how block play changes over time, how teachers can thoughtfully support and extend children’s thinking, and how simple adjustments to materials and setup can deepen learning. Rather than requiring elaborate activities, strong block play environments grow from careful observation, responsiveness, and an understanding …

When Children Cook: Food Experiences As Inquiry, Identity, And Learning, Marian S. Castillo, Carrie L. Ota

Spark! Innovations in Early Childhood Education: A Research-to-Practice Journal for Educators

This article explores the transformative potential of integrating cooking experiences into early childhood classrooms, arguing that food preparation offers much more than a simple activity. By drawing on classroom narratives such as shared meal preparation and spontaneous scientific inquiry this piece illustrates how cooking serves as a catalyst for wonder, problem-solving, and collaboration. It highlights how food-based activities naturally bridge home and school environments, fostering a sense of belonging and cultural identity among young learners. Grounded in developmentally appropriate practice, this article examines the teacher’s role in facilitating these experiences, emphasizing the importance of responsive planning, observation, and valuing the …

More Than Storytime: Intentional Read-Alouds For Literacy Instruction And Formative Observation, Shelia Tate

Spark! Innovations in Early Childhood Education: A Research-to-Practice Journal for Educators

Read-alouds have long been valued in early childhood classrooms for promoting engagement, enjoyment, and a love of reading. When intentionally planned, they can also reinforce foundational literacy skills and provide formative information about student understanding. This article examines how early childhood educators can move read-alouds beyond a familiar classroom routine by connecting them to specific literacy objectives and using student responses to guide subsequent instruction. The IPAQ process (Intentional Choice, Preplanning the Focus, Anticipating Misconceptions, and Questioning and Responses for Formative Observation) provides a practical framework for planning purposeful read-alouds. Classroom examples illustrate how teachers can use planned interactions and …

On The Existence, Uniqueness And Stability Of Solutions Of Sdes With State-Dependent Variable Exponent, Mustafa Avci

Journal of Stochastic Analysis

We study a time-inhomogeneous nonlinear SDE with drift and diffusion governed by state-dependent variable exponents. This framework generalizes models like the geometric Brownian motion (GBM) and the constant elasticity of variance (CEV), offering flexibility to capture complex dynamics while posing analytical challenges. Using a fixed-point approach, we prove existence and uniqueness, analyze higher-order moments, derive asymptotic estimates, and assess stability. Finally, we illustrate an application where Poisson’s equation admits a probabilistic representation via a timehomogeneous nonlinear SDE with state-dependent variable exponents.

Companion Matrices Associated To Stochastic Matrices, Andreas Boukas, Philip Feinsilver

Journal of Stochastic Analysis

Starting with a stochastic matrix, we study the behavior of powers of an associated companion matrix, which has the same characteristic polynomial as the original matrix. In general the companion matrix will have negative entries while maintaining rowsums equal to 1. We will find the growth rate even if the Ces`aro limit of the sums of the companion matrix diverge. Surprisingly, in the irreducible aperiodic case the powers of the companion matrix will converge even though the norm of the matrix exceeds 1 and it has possibly negative entries.

Z+-Valued Additive Processes In Law With Nonnegative Increments, Nadjib Bouzar

Journal of Stochastic Analysis

The goal of this article is to study in depth the subclass of Z+- valued additive processes in law with nonnegative increments. We establish key distributional properties of these processes and obtain some existence results under a variety of conditions. We show that they form a subclass of the family of inhomogeneous Markov chains with spatial homogeneity. We extend the notion of factoring introduced by Sato (2004, [9]) for Rd-valued additive processes in law to their Z+-valued counterparts with nonnegative increments. We give a sufficient condition for the existence of a factoring for these processes. Lastly, we obtain their representation …

Design And Fabrication Of 3d Bioprinted Scaffold: Experimental And Machine Learning Methods, Mohan K. Dey

LSU Doctoral Dissertations

The development of reliable hydrogel-based scaffolds for extrusion bioprinting remains limited by the poor structural fidelity of low-viscosity bioinks and the lack of robust, high-throughput quality evaluation methods. This dissertation can resolve such challenges by developing the combination of optimized hydrogel formulations, cryogenic-assisted bioprinting, and artificial intelligence (AI)-based scaffold evaluation to the use of tissue engineering and preclinical cancer modelling applications. To assess the rheological behavior, printability, mechanical properties, and biocompatibility of the alginate – gelatin (Alg–Gel) system, a novel system of hydrogel was developed and characterized using Alg–Gel hydrogel system. The 7% alginate, 8% gelatin mixture was found to …

Correlative In Situ Nonlinear Optical Characteriztion Of Plasmonic Colloidal Nanoparticle Growth Dynamics, Stena C. Peterson

LSU Doctoral Dissertations

Colloidal noble metal nanoparticles are of extreme interest as nanomaterials and for the wide variety of their possible applications in nanomedicine. The unique linear and nonlinear optical processes associated with these nanomaterials can be studied using a variety of spectroscopic techniques including extinction, second harmonic generation (SHG), and two-photon fluorescence (TPF) spectroscopy. In order to better understand and optimize these nanomaterials for their desired applications, it is important to investigate the growth and photophysical dynamics associated with gold nanoparticles, silver-gold core-shell (Ag-Au CS) nanoparticles, and gold-silver-gold core-shell-shell (Au-Ag-Au CSS) nanoparticles in addition to how their size, surface morphology, composition. and …

Extreme Geomagnetic Storm Effects On Earth's Radiation Belts Observed By Calet On The International Space Station, Anthony W. Ficklin

LSU Doctoral Dissertations

This dissertation examines changes in Earth's energetic-particle environment using measurements from the Calorimetric Electron Telescope (CALET) on the International Space Station. Although CALET was designed primarily for high-energy cosmic-ray and gamma-ray observations, its count rates provide nearly continuous measurements of particles of ~1 MeV and above. The analysis uses the CHDX, CHDY, and IMC4X channels, which have approximate electron thresholds of $>\!1.5$, $\!>3.4$, and $\!>8.2$~MeV and proton thresholds of $>\!17$, $\!>37$, and $\!>52$~MeV, respectively. Because these measurements do not identify particle species, the observations are interpreted using their geographic and geomagnetic distributions, the relative …

Long-Term Effects Of Harvesting Disturbance And Site Preparation On Soil Properties And Tree Growth In A Loblolly Pine (Pinus Taeda) Forest, Kyle M. Caccamesi

LSU Master's Theses

Productivity decline between rotations has long been a concern in intensively managed forest plantations. Research done over the last century has provided greater clarity on why this phenomenon occurs. The objective of this research was to observe long-term soil and tree growth characteristics that are likely to be influenced by operational harvesting activities. The experiment was conducted in Washington Parish, Louisiana on a site dominated by Ruston soil series, a well-drained, fine loamy, siliceous and thermic typic Paleudult. A randomized complete block design with 2 x 2 x 2 factorial treatments was used. The treatment factors were harvesting method, fertilization, …

The Study Of Hydrophobic Biomolecules With Matrix Assisted Laser Desorption Ionization Mass Spectrometry And Atomic Force Microscopy, Brandy L. Perkins

LSU Doctoral Dissertations

Abstract

Matrix assisted laser desorption ionization (MALDI) mass spectrometry (MS) can be used to obtain localization and chemical information of hydrophobic biomolecules on tissue samples.  A technique has been developed to modify a standard MALDI matrix that improves the selectivity for hydrophobic biomolecules on the tissue sample. The modification involves the use of a Group of Uniform Materials Based on Organic Salts (GUMBOS). GUMBOS are ionic liquids (IL) that are bulky organic ions with a counter ion that can be changed for tuning.  They are more stable than traditional matrices under vacuum.  Unlike traditional IL’s, the GUMBOS melting point ranges …

From Osbcurity To The Stage: A Stylistic And Pedagogical Exploration Of The Four Concert Etudes By Mikhail Bukinik, Luis Bernardo Castro

LSU Doctoral Dissertations

This research examines Mikhail Bukinik’s 4 Konzertetüden (concert etudes) for solo cello through both a stylistic performance and pedagogical approach. Despite Bukinik’s historical presence as a cellist and composer, these specific works have fallen into obscurity and remain largely absent from the standard pedagogical and performance canon. The research has two primary objectives. The first is to reintroduce these works to the modern repertoire, focusing on dissemination and performance practice. This involves a stylistic analysis of the four etudes, culminating in a recorded live performance during the lecture recital and the creation of a professional studio recording to serve as …

The Student Performer's Guide To Creating A Consortium, Jaycee Swan

LSU Doctoral Dissertations

Among advanced musicians who advocate for increasing diversity in classically oriented repertoire, music commissioning is a common practice. Funding a composer to write original music, however, seems out of reach for student musicians or those without the financial means and know-how. A more affordable and therefore accessible alternative to the stand-alone commission is the consortium-based commission for new music. In this lecture portion of a “lecture-recital with written document,” I (a) document my experience in spearheading a new music consortium and, from that experience, (b) present a guide for facilitating a new music consortium.

The project was the impetus for …

Predictive Modeling Of Readmission, Mortality, And Resource Utilization After Surgical And Transcatheter Aortic Valve Replacement, Raymond J. Martin

LSU Master's Theses

Aortic stenosis is the most prevalent valvular heart disease in North America. Its definitive treatments—surgical aortic valve replacement (SAVR) and transcatheter aortic valve replacement (TAVR)—carry a substantial burden of unplanned hospital readmission, which worsens patient outcomes, strains hospital capacity, and creates financial risk under value-based payment programs. Prior predictive work has largely focused on binary classification of 30-day readmission after TAVR. Such studies typically report predictor effects as odds or hazard ratios without validating patient-level probabilities, and neglect both the timing of readmission and the resources it consumes. To address these gaps, this thesis develops and empirically validates a unified, …

A Data-Driven Framework For Mitigating Breast Cancer Overdiagnosis: From Estimation To Risk-Adjusted Computer-Aided Diagnosis, William M. Brown Jr.

LSU Doctoral Dissertations

In Computer-Aided Diagnosis (CAD) of cancer, standard cost metrics (false-positives and false-negatives) fundamentally fail to account for overdiagnosis. Overdiagnosis is a critical scenario where a disease is correctly detected (true-positive) but is biologically indolent and would never have caused the patient harm or symptoms. While widely recognized in the medical community as a major healthcare crisis driving stressful and invasive overtreatment, overdiagnosis remains severely under-researched within computer science and engineering. This dissertation addresses this interdisciplinary gap by defining the three key computational challenges of overdiagnosis: (i) accurate estimation, (ii) harm quantification, and (iii) algorithmic mitigation. To overcome the estimation challenge, …

Using Fecal Diagnostic Tests To Assess The Prevalence Of Fasciola Hepatica In The United States Sheep Population, Brooke A. Delcambre

LSU Master's Theses

Fasciola hepatica, the common liver fluke, is endemic in the Pacific Northwest and Gulf Coast of the United States. To provide updated information on F. hepatica prevalence, as part of the USDA National Animal Health Monitoring System Sheep 2024 study, sheep operations in the top 30 sheep-producing states were identified, and producers were invited to participate. For each operation, feces were collected from at least eight sheep and pooled to form a single composite sample. Two methods were used to identify sheep infected with F. hepatica: fecal sedimentation and indirect sandwich ELISA. At the national level, across 318 operations, 7.1 …

Parental Enculturation And Child Well-Being In Immigrant Families: Examining Peer Relationship Difficulties And Emotional Symptoms In Asian American Youth, Yuxin Yu

LSU Master's Theses

Parents with immigration backgrounds face the dual challenges of maintaining their heritage culture while supporting their children’s adaptation to the mainstream culture. Although previous studies stressed both acculturation and enculturation, these two processes can compete and even conflict, leading to the important question for parents: Does parental enculturation influence children’s peer relationships and emotional functioning? This study examines the associations between parental enculturation and the social and emotional adaptation of Asian American youth by focusing on peer relationship difficulties and emotional symptoms. Participants included 75 Asian American parents of children aged 4 to 17, who completed measures of parental enculturation …

Irrigation Water Conservation And Accelerated Composting: An Exploration Of Environmentally Conscious Practices For Ornamental Horticulture, William James Carson Dunford

LSU Master's Theses

Best management practices for ornamental horticulture include proper management of irrigation water resources and substrate components. The first study investigated the effects of wind speed, wind direction, water pressure, and spray stake height on irrigation efficiency in nursery containers. Results indicated that lower spray stake height positions and lower wind speeds significantly improved the irrigation water volume captured within nursery containers by as much as 18% to 39%. Orienting spray stakes against prevailing winds further enhanced water retention, particularly at 0 and 1 inch heights. In contrast, higher stake elevations led to increased irrigation water loss by as much as …

Experimental Evaluation Of Membranes In The Recovery Of Hydrogen From Serpentinization, Rafael Dos Santos

LSU Master's Theses

Natural hydrogen generated through serpentinization reactions has emerged as a promising low-carbon energy resource. However, serpentinization-derived gas streams commonly contain methane (CH₄) and carbon dioxide (CO₂), requiring purification before hydrogen can be utilized in industrial applications. Membrane-based gas separation technologies offer a potentially cost-effective solution for hydrogen recovery; however, to the best of the author's knowledge, no previous studies have specifically investigated their application to serpentinization-derived gas streams.

This work evaluates the performance of two commercial polymeric membrane modules (Evonik and Generon) and one palladium-copper (Pd-Cu) membrane module (Okaya) for hydrogen recovery from gas compositions representative of serpentinization environments. An …

A Detailed Characterization Of Exoplanet Host Stars And Their Planets With The Chara Array, Ashley A. Elliott

LSU Doctoral Dissertations

There exists a vastly diverse compilation of exoplanetary systems; ranging from planets the size of Earth to planets larger than Jupiter, planets with or without an atmosphere, planets with rocky compositions to planets with gaseous compositions, and more. Enough planets have been discovered and confirmed to enable statistically reliable statements about demographics, formation mechanisms, planetary properties, etc., all of which require reliable exoplanet parameters. Properly characterizing and understanding these worlds first requires accurate measurements of their host star fundamental properties as exoplanets were, at some point in time, under the direct influence of their host stars. Direct measurements of stars …

Impact Of Asphalt Binder Chemical Composition On The Performance Of Asphalt Mixture., Sagar Parajuli

LSU Master's Theses

Asphalt binder is composed of four chemical fractions, namely, saturates, aromatics, resins, and asphaltenes (SARA). Binders with the same performance grade (PG) can exhibit different chemical compositions due to variability in crude oil sources and refining processes. The objective of this study was to evaluate how such chemical variations influence the mechanical performance of asphalt mixtures at high, intermediate and low temperatures.

Eighteen 12.5-mm nominal Maximum Aggregate Size mixtures were designed using two aggregate types (limestone and gravel), and three binder grades (PG 67-22, PG 70-22m and PG 76-22m), each from three different sources with varying chemical fractions. A suite …

Scattered Light Noise At Ligo Livingston Observatory Induced By Microseismic Ground Motion, Debasmita Nandi

LSU Doctoral Dissertations

Gravitational waves are “ripples” in the fabric of spacetime and create a minuscule change in the distance between two points. After publishing his theory of general relativity in 1915, Albert Einstein predicted the existence of gravitational waves as a consequence of the theory. Almost 100 years after the theoretical prediction, gravitational waves were detected for the first time in 2015 by the Advanced LIGO detectors in Livingston, Louisiana, and Hanford, Washington. Gravitational waves have a very small amplitude, making it very challenging to detect them. Different types of noise sources either of instrumental or environmental origin can reduce the astrophysical …

A Reduced-Order Framework For Stochastic Criticality Estimation In Granular Energetic Materials, Philip T. Melton

LSU Master's Theses

Granular energetic materials (EMs) exhibit stochastic shock initiation because pore collapse, frictional dissipation, and localized thermal activation depend on microstructural descriptors that vary between nominally identical samples. Fully resolved mesoscale and atomistic calculations can represent these mechanisms, but their computational cost limits direct ensemble evaluation of microstructure-conditioned criticality thresholds. This thesis introduces a reduced-order framework for stochastic criticality estimation in granular EMs by coupling five explicitly defined model components: first, a one-dimensional steady compaction-shock model that maps initial solid volume fraction and shock pressure to a bulk mass-specific dissipated-work budget; second, an SEM/synthetic-image segmentation workflow that extracts pore area, perimeter, …

Scraping The Earth: Testing Ndvi As An Indicator Of Military Ground Maneuver Within The Israeli Invasion Of The Gaza Strip, Thomas A. Bergeron

LSU Master's Theses

The advancement of open-source (OSINT) and geospatial intelligence (GEOINT) has allowed independent researchers to study human conflict in new ways, with tools that were previously reserved only for state intelligence agencies. In order to advance methodologies, researchers must continue to evaluate new tools to study war.  Valued for its accessibility and moderate spatial resolution, the Normalized Difference Vegetation Index (NDVI) is one such tool that has not been widely systematically tested for its use in an open-source GEOINT investigation of modern conflict. This study tests NDVI as an indicator of military maneuver by leveraging a mixed-method approach against open-source kinetic …