Digital Commons Network^™

Effects Of Photo-Oxidized Crude Oil On Gulf Killifish Early Life Stages, Charles Campbell

LSU Master's Theses

Photo-oxidation of spilled crude oil generates polar compounds that can heighten toxicity to marine fish embryos. We investigated the effects of photo-oxidized crude oil on early life stages of Gulf killifish (Fundulus grandis) by exposing embryos under flow-through conditions to water-accommodated fractions of four oil treatments: fresh oil unexposed to either sunlight or weathering referred to as dark control (DC), a UV-light oxidized whole oil (LT), the polar fraction extracted from LT (Pol) and the remnants after extracting the Pol from LT (NP). Oil loadings of 0.38–3.00 g oil/kg water were tested. Total PAH concentrations and chemical profiles …

Drawing Disintegration: A Twice-Exceptional Individual’S Autoethnographic Inquiry Into Graphic Narrative Creation As A Tool For Processing Trauma, Natalie J. Krusemeier

LSU Doctoral Dissertations

This autoethnographic study explores the researcher’s lived experience of childhood trauma as a twice exceptional individual with an arts-based autoethnography research design, specifically in the form of graphic narrative. Grounded in Dabrowski’s Theory of Positive Disintegration (TPD), this study examines how emotional and sensory intensity, overexcitability (OE), and psychological disintegration intersect with twice-exceptional (2e) identity development and identity authenticity potential. Data sources include personal artifacts from childhood and adulthood—journals, letters, graphic narrative, documents, and photographs—alongside reflective writings and completed graphic narrative pages. Using descriptive coding and TPD’s developmental levels as analytic lenses, the study interprets the processes of disintegration and …

Envis: A User-Centered Web-Based Tool For Interactive Visualization Of Environmental Geospatial Data, Saima Sanjida Shila

LSU Master's Theses

Data visualization is an essential part of analyzing environmental geospatial data. Despite having the availability of large environmental datasets, there remains a lack of easily accessible, user-friendly, and interactive visualization tools in this field. Therefore, this study aims to develop a user-friendly and easily available web-based visualization tool. Before developing the tool, we conducted a survey of researchers at the LSU Coastal Studies Institute to collect their opinions on currently available visualization tools. In the survey, 55% of participants responded between somewhat satisfied to dissatisfied with their current visualization tools. Most of the participants mentioned two major limitations of existing …

The Art Critic As Learner: A Review Of Erica Cardwell’S Wrong Is Not My Name, Bronte Cronsberry

Comparative Woman

Erica Cardwell’s debut book Wrong is Not My Name: Notes on (Black) Art is about art, race, family and perhaps most prominently, about grief. Through her personal experiences with these themes, Cardwell’s voice as art critic is still undeniably present throughout the entirety of the text. Wrong is Not My Name reminds readers of the power of art to push us towards growth, but in the context of this issue on Aesthetic Education, I focus on Cardwell’s approach to art as critic, which she continually grounds in her approach to art as learner. It is this orientation in particular that …

Pedagogical Escapism And Western Performativity: A Psycho-Aesthetic Critique Of Belly-Dance Adaption Symbolics, Maryam Farahani

Comparative Woman

This paper addresses positionality misreading in Western pedagogical adaptions of belly dancing. Raqs Sharqi, known in the West as belly dancing, is a predominantly West Asian and North African discipline and performance art with multimodal varieties, globally taught and practiced while crossing sport, narratology, and story-telling boundaries. As a unique performance activity, it portrays a dynamic entertainment space to connect one’s multiple identities. I argue that Raqs Sharqi, not only as an aesthetic-educational art form but also, perhaps unwittingly, reiterated as an Orientalist communication trope in belly dancing, has forged East-West performativity models. However, the historical education-literature for Western women …

From Sensibility To Critical Engagement: Sympathy, Animality, And Subjecthood In Wollstonecraft’S Maria And Vindication, Yingnan Shang

Comparative Woman

This paper examines Mary Wollstonecraft’s strategic use of sentimental animal tropes alongside rationalist critique in Maria, or The Wrongs of Woman (1798) and A Vindication of the Rights of Woman (1792), arguing that she mobilizes sensibility not as an end in itself, but as a pedagogical instrument within a broader project of aesthetic education—one intended to move readers from affective sympathy toward political and philosophical judgment. Focusing in particular on animal metaphors—especially in the character of Jemima, who repeatedly figures herself as a domesticated and brutalized creature—I trace how Wollstonecraft employs tropes of animality to illuminate the processes by which …

Beyond The Madrasah: Digital Pedagogies And Nigerian Yoruba Muslim Women's Engagement With Islamic Knowledge, Abdulgafar Olawale Fahm

Comparative Woman

This paper explores how digital pedagogies are reshaping the landscape of Islamic education among Nigerian Muslim women, with a primary focus on Yoruba communities in Southern Nigeria. Historically, Islamic learning in Nigeria has been rooted in traditional institutions, notably the madrasa, characterized by face-to-face instruction and rigid gender norms. However, the proliferation of digital technologies - particularly online madrasas, WhatsApp study groups, Zoom-based Qur’anic classes, and Islamic mobile applications - has significantly altered women’s access to religious knowledge. Utilizing ethnographic evidence and qualitative interviews, this interdisciplinary study examines how digital platforms enhance accessibility, overcome sociocultural barriers, and enable Nigerian Yoruba …

Computational Data Analysis, Kathryn S. Biles

LSU Master's Theses

Data science has emerged as a cornerstone of innovation, shaping an ever-expanding range

of professional careers. As technology advances and the volume of data expands expo-

nentially, the ability to extract meaningful insights from data has become indispensable

across industries. Far from representing a single career path, data science enables profes-

sionals in nearly every domain to make informed decisions, optimize systems, and drive

innovation. Yet, many high school students and incoming college freshmen have limited

exposure to data science fundamentals or the career opportunities they unlock. This is

the gap that Computational Data Analysis, a high school-level curriculum I …

Predictions Of The Nancy Grace Roman Space Telescope Galactic Exoplanet Survey. Iii. Detectability Of Giant Exomoons Of Wide-Separation Giant Planets, Matthew Lastovka, B. Scott Gaudi, Samson A. Johnson, Matthew T. Penny, Eamonn Kerins, Nicholas J. Rattenbury

Faculty Publications

The Nancy Grace Roman Space Telescope (Roman) will conduct a Galactic Exoplanet Survey to discover bound and free-floating exoplanets using gravitational microlensing. Roman should be sensitive to lenses with mass down to ∼0.02 M⊕, or roughly the mass of Ganymede. Thus, the detection of moons with masses similar to the giant moons in our solar system is possible with Roman. Measuring the demographics of exomoons will provide constraints on both moon and planet formation. We conduct simulations of Roman microlensing events to determine the effects of exomoons on microlensing light curves, and whether these effects are detectable with Roman. We …

Effects Of Code Scaffolding In Increasing Student Confidence In Programming Cryptography, John Denny

LSU Master's Theses

Cryptography is essential for secure communications, and new threats require more students willing to program and interact with cryptographic systems. Previous research is focused on tools for teaching these systems at a high level, teaching through attacks against these systems, and proper use of these systems in software development. In this paper, we seek to design a workshop to use scaffolded Python code to teach how these cryp- tographic systems are designed. We explore the use of code scaffolding for students to program an example implementation of the McEliece crypto- graphic system to build confidence in working with these systems. …

“Do Women Have To Be Naked To Get Into The Met. Museum?”: An Exploration Of Contemporary Feminist And Women’S Exhibitions And Collectives, Demi R. Dauterive

LSU Master's Theses

This thesis examines the creation and evolution of feminist art exhibitions and collectives in the United States from the early 1970s through the 2020s. These exhibitions and the work they contain are analyzed alongside each wave of feminism that ran parallel to their existence. Beginning with the 1970s and Second Wave Feminism, Chapter One explores Judy Chicago and Miriam Schapiro’s Womanhouse in addition to Lucy Lippard’s Twenty Six Contemporary Women Artists and the work of other smaller collectives. Chapter Two explores the DIY initiatives and subversive ideologies of Third Wave Feminism through artist groups such as the Guerrilla Girls and …

Editorial Introduction: Governing Through Attention, Collaboration, Learning, And Participation, Geoboo Song, Gwen Arnold, Melissa K. Merry, Saba N. Siddiki, Holly L. Peterson, Creed Tumlison, Eric Button, Benjamin Galloway, Camille Gilmore, Erica Ivins, Rinjisha Roy, Mohammad Mizanur Rahman, Ryan Ramaker, Rachel Britton, Isaac Owusu

Faculty Publications

No abstract provided.

State Courts, Public Opinion, And The Changing Abortion Landscape After Dobbs, Anna Gunderson, Chesani Askew, Jeong Hyun Kim, Nichole Bauer

Faculty Publications

The June 24, 2022 Supreme Court decision in Dobbs v. Jackson Women’s Health Organization represented a seismic shift in abortion policy in the United States. Since then, state courts have begun playing an integral role in expanding or restricting abortion access in their jurisdictions. What do these cases look like and how does the public respond to court decisions that are pro- or anti-abortion? We collect original data on state court abortion cases post-Dobbs and field two survey experiments pre- and post-Dobbs to investigate these questions. We find state courts have expanded their scope in abortion policy and that pro-abortion …

Narratives Of Vietnamese Teachers: Exploring Existential Givens Of Freedom, Meaning, And Isolation, Huy D. Nguyen

LSU Doctoral Dissertations

Drawing on Yalom’s framework of existential givens, this study explores how Vietnamese teachers experience existential freedom, existential isolation, and life meaningfulness. The notion of experience serves as the conceptual and interpretive foundation through which participants articulate these existential dimensions. Three participants were selected, and data were collected from online journal entries, vignette responses, and semi-structured interviews. Methodologically, it adopts intuitive inquiry as both conceptual lens and analytic process, integrating multiple modes of knowing and embodied understanding to explore how teachers imagine, experience, and interpret their work. To deepen interpretation, narrative structuring was incorporated to reveal the emotional and relational textures …

User Privacy In The Digital Playground: An In-Depth Investigation Of Facebook Instant Games, Sideeq Bello

LSU Master's Theses

Amid growing concerns over data privacy in web and mobile applications, this study aims to assess the privacy mechanisms in instant games on Facebook, a platform with approximately 3.03 billion monthly active users and a substantial repository of personal data. Instant Games have become increasingly popular due to their ease of access and social integration features. Investigating these games can provide insights into privacy mechanisms and practices, thereby informing the development of more fair, compliant, and user privacy-centric gaming experiences. Thus, this study proposes an integrated analytical framework that leverages a combination of descriptive, memory, and network analysis techniques to …

Navigating New Technology: A Phenomenological Study Into Technology Coaches’ Experiences During Ai Expansion In Schools, Elizabeth K. Wrzesinski

LSU Doctoral Dissertations

Artificial intelligence (AI) is rapidly influencing instructional practices in K–12 education, yet most states have not issued clear, binding policies to guide its integration. As a result, local school systems and support staff must interpret emerging guidance and determine how AI should be used in classrooms. This study examined how system-level technology coaches in the Deep South experience and support AI adoption in contexts where state guidance is advisory rather than mandatory. This qualitative phenomenological study used questionnaires and semi-structured interviews with technology coaches, and a content analysis of AI-related state and local policy guidance. Participants included technology coaches who …

Chplx: The Hpx Solution For Bridging Chapel And C++, Shreyas Swanand Atre

LSU Master's Theses

Historically, domain scientists faced steep learning curves due to low-level programming models and fragmented tooling. Between 2003 and 2008, Cray, now part of HPE, introduced the Chapel language as part of DARPA’s High Productivity Computing Systems (HPCS) program. Today, Chapel remains under active development and is used across research and production projects. In parallel, the STE||AR Group has advanced C++-based parallel programming through HPX, a standards-conforming runtime that provides lightweight tasking, futures, and distributed execution while abstracting much of the algorithmic “heavy lifting.” Yet for many domain scientists, C++ presents a steeper learning curve than Chapel. To close this complexity …

A Bdg Inequality For Stochastic Volterra Integrals, Alexandre Pannier

Journal of Stochastic Analysis

We establish Burkholder-Davis-Gundy-type inequalities for stochastic Volterra integrals with a completely monotone convolution kernel, which may exhibit singular behaviour at the origin. When the supremum is taken over a finite interval, the upper bound depends linearly on the Lγ-norm of the kernel, for any γ > 2. We demonstrate the utility of this inequality in quantifying the pathwise distance between two stochastic Volterra equations with distinct kernels, with a particular emphasis on the multifactor Markovian approximation. For kernels that decay sufficiently fast, we derive an alternative inequality valid over an infinite time interval, providing uniformin- time bounds for mean-reverting stochastic Volterra …

The Increase In Global Ocean Heat Content And Favorable Conditions For Tropical Cyclone And Cyclop Intensification: Accounting For El Niño, Robert Keenan Forney, Paul W. Miller, Travis A. Smith

Faculty Publications

The ocean heat content (“OHC”)—the heat energy within the ocean integrated to a reference depth—has physical drivers spanning spatial and temporal scales, including seasonality, the El Niño/Southern Oscillation (ENSO), and others. The present article investigates changes in the OHC100 during the period 1994–2020 using GLORYS12 monthly averaged ocean reanalysis. OHC100–ENSO correlation patterns are explored to glean insights about the oceanic mechanisms that facilitate the ENSO’s global teleconnections. After extracting known seasonality and ENSO signals using the Oceanic Niño Index (ONI), the OHC100 residual is analyzed to investigate multidecadal drivers of the OHC100. Lagged ENSO–OHC100 correlations (±12 months) reveal basin-scale oscillations …

When Old Meets New: Two Louisiana State University Outreach Librarians Build, Work, And Learn Together To Support Collaborative Student Engagement, Alia Kempton, Mitch Fontenot

Faculty Publications

In this essay, outreach librarians Mitch Fontenot (he/him), Louisiana State University, and Alia Kempton (she/her), Louisiana State University, Special Collections, reflect on their inaugural year of working together, highlighting key achievements, challenges, and growth that have marked their collaborative journey. They discuss how they established effective communication, built trust, and developed a shared understanding of goals and expectations. Additionally, they explore where they envision their partnership heading in the future, touching on long-term aspirations, potential areas for deeper collaboration, and the strategies they plan to implement to continue fostering a successful and productive working relationship.

The Mid-Infrared-Emitting Jet In The Black Hole V404 Cygni In Quiescence, E. S. Borowski, R. I. Hynes, Q. Hunt, A. J. Tetarenko, R. M. Plotkin, T. Shahbaz, P. Gandhi, T. J. Maccarone, J. C.A. Miller-Jones, C. O. Heinke, A. W. Shaw, T. D. Russell, G. R. Sivakoff, P. A. Charles, E. V. Palaiologou, P. Reig

Faculty Publications

Observations of some quiescent black hole X-ray binaries have revealed an excess of mid-infrared (MIR) emission above that expected from their donor stars. In one system, V404 Cygni, this excess has been variously suggested to arise from the accretion disk, circumbinary material, or a compact relativistic jet. Here we present simultaneous James Webb Space Telescope (JWST), Atacama Large Millimeter/submillimeter Array, and complementary multiwavelength observations undertaken to resolve this uncertainty. We observed large-amplitude 21 μm variability on short timescales with JWST, particularly a dramatic flare, which swiftly rose to ≈2.4 mJy, over 10 times the lowest observed MIR flux density. Similar …

Introducing A Markov Chain-Based Time Calibration Procedure For Multi-Channel Particle Detectors: Application To The Superfgd And Tof Detectors Of The T2k Experiment, S. Abe, H. Alarakia-Charles, I. Alekseev, C. Alt, T. Arai, T. Arihara, S. Arimoto, A. M. Artikov, Y. Awataguchi, N. Babu, V. Baranov, G. Barr, D. Barrow, L. Bartoszek, L. Bernardi, L. Berns, S. Bhattacharjee, A. V. Boikov, A. Blanchet, A. Blondel, A. Bonnemaison, S. Bordoni, M. H. Bui, T. H. Bui, F. Cadoux, S. Cap, A. Cauchois, J. Chakrani, P. S. Chong, A. Chvirova, P. Collard, M. Danilov, C. Davis

Faculty Publications

Inter-channel mis-synchronisation can be a limiting factor to the time resolution of high performance timing detectors with multiple readout channels and independent electronics units. In these systems, time calibration methods employed must be able to efficiently correct for minimal mis-synchronisation between channels and achieve the best detector performance. We present an iterative time calibration method based on Markov Chains, suitable for detector systems with multiple readout channels. Starting from correlated hit pairs alone, and without requiring an external reference time measurement, the method solves for fixed per-channel offsets, with precision limited only by the intrinsic single-channel resolution. A mathematical proof …

Real-Time Electron Spectrometer Utilizing A Permanent Magnet And Diode Detector Array, Mason W. Heath, Kenneth L. Matthews, Garrett M. Pitcher, Kenneth R. Hogstrom

Faculty Publications

Background: Magnetic spectrometers have been previously described for measuring energy spectra of therapeutic electron beams. However, challenges for clinical utilization have been their size, weight, and limited real-time capabilities. Development of a compact, lightweight, and inexpensive device with real-time readout will make an electron spectrometer a practical clinical tool. Purpose: This work integrates a commercial diode detector array with a permanent dipole magnet to create a practical real-time energy spectrometer for therapeutic electron beams. Methods: A 4 kg, 0.55 T permanent dipole magnet was coupled to two PC boards of a Sun Nuclear SRS MapCHECK device, which provided two interlaced …

On Tight (K,ℓ)-Stable Graphs, Xiaonan Liu, Zi Xia Song, Zhiyu Wang

Faculty Publications

For integers (Formula presented.), a graph (Formula presented.) is (Formula presented.) -stable if (Formula presented.) for every (Formula presented.) with (Formula presented.). A recent result of Dong and Wu states that every (Formula presented.) -stable graph (Formula presented.) satisfies (Formula presented.). A (Formula presented.) -stable graph (Formula presented.) is tight if (Formula presented.); and (Formula presented.) -tight for some integer (Formula presented.) if (Formula presented.). In this paper, we first prove that for all (Formula presented.), the only tight (Formula presented.) -stable graphs are (Formula presented.) and (Formula presented.), answering a question of Dong and Luo. We then prove that …

The Sensitivity Of Future Hydroclimate Projections To Topography And Large-Scale Dust Forcing In The Luquillo Mountains Of Eastern Puerto Rico, J. Preece, C. Johnson, T. Mote, P. Miller, M. Williams

Faculty Publications

Precipitation over Puerto Rico is expected to decline in coming decades, threatening an important source of surface water supply. However, earth system models neither resolve fine-scale orographic impacts nor the radiative effects of Saharan dust aerosols on precipitation over the island's mountains. Here, we use the Weather Research and Forecasting model coupled with chemistry (WRF-Chem) to downscale global climate model projections to a convection-resolving 4-km resolution for both dust and no-dust scenarios. We compare the regional hydroclimate during three periods: historical (2014–2018), mid- (2045–2049) and end-21st century (2085–2089), using output from an RCP8.5 simulation of the Community Earth System Model, …

X-Ray Polarization Detection Of The Pulsar Wind Nebula In G21.5-0.9 With Ixpe, Niccolò Di Lalla, Nicola Omodei, Niccolò Bucciantini, Jack T. Dinsmore, Nicolò Cibrario, Stefano Silvestri, Josephine Wong, Patrick Slane, Tsunefumi Mizuno, Michela Negro, Roger W. Romani, Riccardo Ferrazzoli, C. Y. Ng, Miltiadis Michailidis, Yi Jung Yang, Fei Xie, Martin C. Weisskopf, Philip Kaaret, Iván Agudo, Lucio A. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stefano Bianchi, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Fiamma Capitanio, Simone Castellano, Elisabetta Cavazzuti, Chien Ting Chen, Stefano Ciprini

Faculty Publications

We present the X-ray polarization observation of G21.5−0.9, a young Galactic supernova remnant (SNR), conducted with the Imaging X-ray Polarimetry Explorer (IXPE) in 2023 October, with a total livetime of approximately 837 ks. Using different analysis methods, such as a space-integrated study of the entire region of the pulsar wind nebula (PWN) and a space-resolved polarization map, we detect significant polarization from the PWN at the center of the SNR, with an average polarization degree of ∼10% oriented at ∼33° (north through east). No significant energy-dependent variation in polarization is observed across the IXPE band (2-8 keV). The polarization map, …

Time Series Changes Of Surficial Sediments On Eastern Ship Shoal, Louisiana Shelf, Adam Gartelman, Kehui Xu, Brian J. Roberts, David Samuel Johnson, Madison Liotta

Faculty Publications

Ship Shoal, a large transgressive sand body on the Louisiana continental shelf, is a critical sediment source for coastal restoration. This study evaluates spatial and temporal variability in sediment grain size, percents organic matter (%OM), and carbonate (%CO3) across the shoal crest (REF), Caminada Dredge Pit (CAM), and Terrebonne Dredge Pit (TER). Sediment samples were collected between 2020 and 2022 using box cores and analyzed for grain size, %OM, and %CO3, with temporal and spatial patterns assessed through statistical comparisons, correlation analyses, and random forest regression models. Results show that dredged areas act as sinks for fine-grained, organic-rich sediments, with …

A Comparison Of Characteristics Of Infilling Sediments In Three Mud-Capped Dredge Pits On The Louisiana Continental Shelf, Wenqiang Zhang, Kehui Xu, Chaochen Jia, Adam Gartelman, Omar Alawneh, Navid Jafari, Colin Herke, Madison Liotta, Samuel J. Bentley

Faculty Publications

Due to high sedimentation rate up to ~1 m/year, mud-capped dredge pits (MCDP) are often considered natural laboratories for studying sedimentary processes, slope stability and the impacts of dredging activities on marine environments. Although many studies have been performed on the Louisiana shelf, there is a lack of high spatial resolution research covering the eastern, central and western Louisiana shelf to comprehensively investigate sediment infilling. Eighteen vibracores were collected from the Peveto Channel dredge pit (PC), Raccoon Island dredge pit (RI) and Sandy Point dredge pit (SP), and more than 1300 samples were analyzed to study the spatial variation in …

Easyspec: An Open-Source Python Package For Long-Slit Spectroscopy, Raniere De Menezes, Francesco Massaro, Michela Negro, Claudia M. Raiteri, Harold Peña-Herazo, Jose A. Acosta-Pulido

Faculty Publications

In modern-day astronomy, near-infrared, optical, and ultraviolet spectroscopy are indispensable for studying a wide range of phenomena, from measuring black hole masses to analyzing chemical abundances in stellar atmospheres. However, spectroscopic data reduction is often performed using instrument-specific pipelines or legacy software well-established and robust within the community that are often challenging to implement and script in modern astrophysical workflows. In this work, we introduce easyspec, a new Python package designed for long-slit spectroscopy, capable of reducing, extracting, and analyzing spectra from a wide range of instruments—provided they deliver raw FITS files, the standard format for most optical telescopes worldwide. …

Sub-Gev Dark Matter And Mev Gamma-Ray Detection With Cosi, Yu Watanabe, Shigeki Matsumoto, Christopher M. Karwin, Tom Melia, Michela Negro, Thomas Siegert, Yuki Watanabe, Hiroki Yoneda, Tadayuki Takahashi

Faculty Publications

Sub-GeV dark matter (DM) has been attracting more attention due to the negative results searching for traditional weakly interacting massive particles (WIMPs). Such particles are expected to produce gamma rays from annihilation in the MeV energy region. Advancements in technology have opened up possibilities to precisely detect MeV gamma rays, leading to the upcoming space-based mission of the Compton Spectrometer and Imager (COSI). We comprehensively and quantitatively study the phenomenology of sub-GeV DM to determine if the COSI observations will probe their viable model parameter regions. We first construct models to describe sub-GeV DM based on the minimality and renormalizability …