Digital Commons Network^™

Offerings, Diana C. Patin

LSU Master's Theses

These photographs and writing are a set of offerings, collected as part of an intensive examination of myself and my contentious relationship with self-image. I first established which traits in my personality represent me best. I landed on my fatness, my queerness, my southernness, and my penchant for caring. Then I took a deep dive into each of those four themes with the objective of uncovering both the areas of exaltation and spaces of hurt within them. The images that result are both confrontational and gentle. It is my hope that the uncompromising honesty within these offerings communicates that while …

Generalized Girsanov Transform Of Processes And Zakai Equation With Jumps, Masatoshi Fujisaki, Takashi Komatsu

Journal of Stochastic Analysis

No abstract provided.

Modeling Of Mos2 Tunnel Field Effect Transistor In Verilog-A For Vlsi Circuit Design, Md Azmot Ullah Khan, Naheem Olakunle Adesina, Jian Xu

Faculty Publications

This paper presents the design of an inverter, half adder, and ring oscillator using compact models of MoS2 channel-based tunnel field effect transistor (TFET). The TFET models (both nand p-type) are written in high-level hardware language Verilog-Analog (Verilog-A) following the analytical model of [1] and the output characteristics of the components are simulated in Cadence/Spectre software. The performance of the designed inverter (a basic building block of VLSI circuit) is analyzed by extracting its different parameters, such as transfer characteristics, power dissipation and consumption, delay, power delay product. The simulated outputs (sum carry) obtained from the half adder circuit exactly …

On The Uniqueness Of Solutions To Martingale Problems For Diffusion Operators With Progressively Measurable Random Coefficients, Masaaki Tsuchiya

Journal of Stochastic Analysis

No abstract provided.

Resistance Allele Frequencies To Cry1ab And Vip3aa20, And Performance Of Cry1a.105/Cry2ab2 Susceptible And Single/Dual-Gene Resistant Corn Earworm On Non-Bt And Low Concentrations Of Bt Diet, Shucong Lin

LSU Master's Theses

Corn earworm, Helicoverpa zea (Boddie), is an important agricultural pest and a target species of Bt corn and Bt cotton. Recently, this pest in the U.S. has developed resistance to Cry1/Cry2 corn and cotton. The objectives of this study were to 1) estimate the frequencies of resistance allele to Cry1Ab and Vip3Aa20 proteins in Louisiana populations of H. zea; 2) determine if Cry1A.105/Cry2Ab2 single/dual-gene resistance in H. zea is associated with fitness costs; and 3) investigate the effect of three low concentrations of mixed Cry1A.105/Cry2Ab2 proteins on the growth, development, and reproduction of two known Bt-susceptible strains and six …

Influence Of Planting Date, Maturity Group, Harvest Aids And Fungicide Application On Soybean (Glycine Max (L.) Seed Quality, Ana Priscila Campos

LSU Master's Theses

Field studies evaluated the influence of planting date, maturity group, and harvest timing on soybean yield and seed quality at the LSU AgCenter Northeast (NERS), Macon Ridge, and Dean Lee Research Stations in 2018-2020. In addition, the influence of harvest aid and fungicide application on seed quality impact from delayed harvest and environment was investigated at NERS in 2019 and 2020 in both field and environmentally controlled growth chambers. Soybean yield was maximized when maturity group IV and V soybean varieties were planted between Mid-April and Mid-May. Earlier and later planting dates did not result in maximized yield. Planting date …

Particle Representation For The Solution Of The Filtering Problem. Application To The Error Expansion Of Filtering Discretizations, Dan Crisan, Thomas G. Kurtz, Salvador Ortiz-Latorre

Journal of Stochastic Analysis

No abstract provided.

An Anti-Symmetric Version Of Malliavin Calculus, Jirô Akahori, Tomo Matsusita, Yasufumi Nitta

Journal of Stochastic Analysis

No abstract provided.

Efficient, Low-Cost Bridge Cracking Detection And Quantification Using Deep-Learning And Uav Images, Chao Sun, Xiangyu Meng, Joshua O. Ogbebor, Shaopan Guo

Publications

Many bridges in the State of Louisiana and the United States are working under serious degradation conditions where cracks on bridges threaten structural integrity and public security. To ensure structural integrity and public security, it is required that bridges in the US be inspected and rated every two years. Currently, this biannual assessment is largely implemented using manual visual inspection methods, which is slow and costly. In addition, it is challenging for workers to detect cracks in regions that are hard to reach, e.g., the top part of the bridge tower, cables, mid-span of the bridge girders, and decks. This …

Trapping Soybean Looper (Lepidoptera: Noctuidae) In The Southeastern Usa And Implications For Pheromone-Based Research And Management, Daniel E. Fleming, Jeffrey A. Davis, Fred R. Musser, Silvana V. Paula-Moraes, Ronald C. Stephenson, Christopher A. Wheeler, Earl Eugene Ringpis, Tyler S. Crum, J. Khai Tran

Faculty Publications

Novel strategies for the management of soybean looper, Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae), are needed due to its increasing importance, costs, and challenges of management in soybeans (Glycine max [L.] Merr.; Fabaceae) in the Americas. Pheromone-mediated mating disruption may be 1 such novel strategy, but an effective tool for estimating mating disruption success must be found. The technique of trapping male moths using pheromone baited traps is a common method for assessing mating disruption technology. This paper reports on the testing of 2 trap types and 3 commercially available lures containing (Z)-7-dodecenyl acetate as the major active component. Trapping was …

Temporal Changes In Cuticular Hydrocarbons During Worker-Reproductive Transition In The Eastern Subterranean Termite (Blattodea: Rhinotermitidae), Qian Sun, Kenneth F. Haynes, Xuguo Zhou

Faculty Publications

In social insects, the reproductive division of labor is often regulated through communication using cuticular hydrocarbons (CHCs) that indicate caste identity and reproductive status. In many termites, workers retain reproductive potential and can differentiate into ergatoid reproductives, and this process is mediated by the presence of reproductives in sex- and age-specific patterns. However, little is known about the variation of CHCs profiles during this transition. In this study, we analyzed the CHC profiles of workers in comparison with ergatoids of different age, sex, and mating status in the eastern subterranean termite, Reticulitermes flavipes (Kollar) (Blattodea: Rhinotermitidae), one of the most …

Managing Corpses From Different Castes In The Eastern Subterranean Termite, Jizhe Shi, Chi Zhang, Sirui Huang, Austin Merchant, Qian Sun, Chuan Zhou, Kenneth F. Haynes, Xuguo Zhou

Faculty Publications

Corpse management is essential for social animals to maintain colony health. In the eastern subterranean termite, Reticulitermes flavipes, workers carry out undertaking behaviors to mitigate the risks associated with the dead. In this study, we hypothesized that termites would respond differently to the corpses from different castes based on their postmortem chemical signatures. To test this hypothesis, we 1) documented the behavioral responses of the workers toward corpses from different castes, and 2) profile the chemical signatures of these corpses. Corpses from all castes were retrieved inside the nests and cannibalized when they were decomposed <64 >h, regardless of the presence …

Biology, Ecology, And Pest Management Of The Tarnished Plant Bug, Lygus Lineolaris (Palisot De Beauvois) In Southern Row Crops, Justin George, James P. Glover, Jeffrey Gore, Whitney D. Crow, Gadi V.P. Reddy

Faculty Publications

The tarnished plant bug, Lygus lineolaris (Palisot de Beauvois), (Hemiptera: Miridae) is considered the most damaging pest of cotton (Gossypium hirsutum L.) in the mid-southern United States, although it is established throughout the United States, southern Canada, and northern Mexico. The introduction of transgenic crops for the control of moths in the Heliothine complex and eradication of the boll weevil, Anthonomus grandis, from much of the United States led to greatly reduced pesticide use in cotton fields, which allowed L. lineolaris to emerge as a new primary pest of cotton in the mid-southern United States. Since the publication of a …

A 3d Printed Vitrification Device For Storage In Cryopreservation Vials, Yue Liu, Andy Lin, Terrence R. Tiersch, William Todd Monroe

Faculty Publications

Sperm cryopreservation by vitrification is a promising approach for small-bodied animals such as zebrafish (Danio rerio). However, most vitrification tools adopted in aquatic research were initially designed for applications other than sperm (such as human embryo freezing) and, thus, pose challenges for adoption to sperm vitrification. Three-dimensional (3D) printing combined with open hardware sharing is an emerging strategy to address challenges in the development of cryo-preservation tools. The goal of this study was to develop a 3D printed Vitrification Device for Cryo-Vials (VDCV) that can be integrated with the existing vial storage systems. The VDCV combined the vitrification and handling …

Effects Of Testosterone Undecanoate On Performance During Multi-Stressor Military Operations: A Trial Protocol For The Optimizing Performance For Soldiers Ii Study, Alyssa N. Varanoske, Melissa N. Harris, Callie Hebert, Emily E. Howard, Neil M. Johannsen, Steven B. Heymsfield, Frank L. Greenway, Lee M. Margolis, Harris R. Lieberman, David D. Church, Arny A. Ferrando, Jennifer C. Rood, Stefan M. Pasiakos

Clinical Research Faculty Publications

Background: Previously, young males administered 200 mg/week of testosterone enanthate during 28 days of energy deficit (EDef) gained lean mass and lost less total mass than controls (Optimizing Performance for Soldiers I study, OPS I). Despite that benefit, physical performance deteriorated similarly in both groups. However, some experimental limitations may have precluded detection of performance benefits, as performance measures employed lacked military relevance, and the EDef employed did not elicit the magnitude of stress typically experienced by Soldiers conducting operations. Additionally, the testosterone administered required weekly injections, elicited supra-physiological concentrations, and marked suppression of endogenous testosterone upon cessation. Therefore, this …

Eating Behaviors And Dietary Patterns Of Women During Pregnancy: Optimizing The Universal ‘Teachable Moment’, Maryam Kebbe, Emily W. Flanagan, Joshua R. Sparks, Leanne M. Redman

Clinical Research Faculty Publications

Understanding women’s perceptions of eating behaviors and dietary patterns can inform the ‘teachable moment’ model of pregnancy. Our objectives were to describe eating behaviors and dietary patterns in pregnancy. This was a cross‐sectional, national electronic survey. Women were ≥18 years of age, living in the United States, currently pregnant or less than two years postpartum, and had internet access. Age, education, race, and marriage were included as covariates in ordinal and binary logistic regressions (significance p < 0.05). Women (n = 587 eligible) made positive or negative changes to their diets, while others maintained pre‐existing eating behaviors. The majority of women did not try (84.9 to 95.1% across diets) and were unwilling to try (66.6 to 81%) specific dietary patterns during pregnancy. Concerns included not eating a balanced diet (60.1 to 65.9%), difficulty in implementation without family (63.2 to 64.8%), and expense (58.7 to 60.1%). Helpful strategies included being provided all meals and snacks (88.1 to 90.6%) and periodic consultations with a dietitian or nutritionist (85 to 86.7%). Responses differed across subgroups of parity, body mass index, and trimester, notably in women with obesity who reported healthier changes to their diet (p < 0.05). Our study underscores the importance of tailoring care early to individual needs, characteristics, and circumstances.

Effects Of Experimental Sleep Restriction On Ambulatory And Sleep Blood Pressure In Healthy Young Adults: A Randomized Crossover Study, Naima Covassin, Jan Bukartyk, Prachi Singh, Andrew D. Calvin, Erik K. St Louis, Virend K. Somers

Clinical Research Faculty Publications

Although insufficient sleep is associated with increased cardiovascular risk, evidence of a causal relationship is lacking. We investigated the effects of prolonged sleep restriction on 24-hour ambulatory blood pressure (BP) and other cardiovascular measures in 20 healthy young participants (aged 23.4±4.8 years, 9 females), who underwent a randomized, controlled, crossover, 16-day inpatient study consisting of 4 days of acclimation, 9 days of sleep restriction (4 hours of sleep/night) or control sleep (9 hours), and 3 days of recovery. Subjects consumed a weight maintenance diet with controlled nutrient composition throughout. A 24-hour BP (primary outcome) and cardiovascular biomarkers were measured repeatedly. …

Translating Family-Based Behavioral Treatment For Childhood Obesity Into A User-Friendly Digital Package For Delivery To Low-Income Families Through Primary Care Partnerships: The Mo-Cord Study, Lauren A. Fowler, Sarah E. Hampl, Meredith L. Dreyer Gillette, Amanda E. Staiano, Chelsea L. Kracht, Andrea K. Graham, Sherri Gabbert, Kelly Springstroh, Fanice Thomas, Lisa Nelson, Aubrie E. Hampp, Jordan A. Carlson, Robinson Welch, Denise E. Wilfley

Population and Public Health Science Faculty Publications

Background: Significant gaps exist in access to evidence-based pediatric weight management interventions, especially for low-income families. As a part of the Centers for Disease Control and Prevention's Childhood Obesity Research Demonstration project 3.0 (CORD), the Missouri CORD (MO-CORD) team aims to increase access to and dissemination of an efficacious pediatric obesity treatment, family-based behavioral treatment (FBT), among low-income families. This article describes the MO-CORD team's approach to translating FBT into a digital package for delivery to low-income families through primary care practices. Methods: Using digital technology, the primary care setting, and existing reimbursement mechanisms, the MO-CORD team is developing a …

Autonomous Vehicle Communication Strategies Modeled In Virtual Reality, Nick N. Ferenchak Ph.D

Publications

We sought to better understand how autonomous vehicle (AV) communication strategies impact human road users’ perceptions and behaviors. More specifically, we explored the impact of different external human-machine interface (eHMI) designs on understanding, task load, comfort, trust, acceptance, and reaction time. To accomplish this, we created virtual reality (VR) scenarios where human participants interacted with AVs. Participants experienced biking, driving, and pedestrian simulators and were brought back after initial testing to explore acclimation and learning effects. In terms of perceptions, the presence of an eHMI was the strongest predictor of understanding, comfort, trust, and acceptance outcomes in the statistical models …

Deep Reinforcement Learning-Based Project Prioritization For Rapid Post-Disaster Recovery Of Transportation Infrastructure Systems, Yongcheol Lee, Kunhee Choi Ph.D, Pedram Ghannad

Publications

Among various natural hazards that threaten transportation infrastructure, flooding represents a major hazard in Region 6's states to roadways as it challenges their design, operation, efficiency, and safety. The catastrophic flooding disaster event generally leads to massive obstruction of traffic, direct damage to highway/bridge structures/pavement, and indirect damages to economic activities and regional communities that may cause loss of many lives. After disasters strike, reconstruction and maintenance of an enormous number of damaged transportation infrastructure systems require each DOT to take extremely expensive and long-term processes. In addition, planning and organizing post-disaster reconstruction and maintenance projects of transportation infrastructures are …

A Continuous Adjustment: The Impact Of Covid-19 On International Graduate Students, Carla Albornoz Moraga

LSU Doctoral Dissertations

International graduate students have endured unique obstacles during the COVID-19 pandemic. This study explored the experiences of eight international graduate students from various countries and academic backgrounds. The following questions guided this study: (1) What were the experiences during the 2020 school year for international students throughout COVID- 19?; (2) What were the day-to-day experiences of international graduate students during COVID- 19?, and (3) How did the international graduate students cope and adjust as they lived through a pandemic? Analysis of the data demonstrated the impact on the international graduate students’ preconceived expectations of the academic and socio-cultural experiences, as …

Transfer Of Regularity For Markov Semigroups By Using An Interpolation Technique, Vlad Bally, Lucia Caramellino

Journal of Stochastic Analysis

No abstract provided.

Integration By Parts Formula On Solutions To Stochastic Differential Equations With Jumps On Riemannian Manifolds, Hirotaka Kai, Atsushi Takeuchi

Journal of Stochastic Analysis

No abstract provided.

On The Exponential Moments Of Additive Processes, Tsukasa Fujiwara

Journal of Stochastic Analysis

No abstract provided.

Investigating The Determinants Of Student Low Enrollment In Historically Black Colleges And Universities (Hbcus): The Case Of One Hbcu In The South, Anthony Trumaine Jackson

LSU Doctoral Dissertations

There is an undeniable fact that enrollment management efforts on academic campuses have become an integral part of campus finance and the backbone of accreditation. Many Historically Black Colleges and Universities (HBCUs) are on the verge of collapsing and even losing their accreditations due to low enrollment, a decline that has been observed in recent decades.

Therefore, this study investigated why students are not enrolling in HBCUs. The study further explored the perceived factors that are likely to contribute to low student enrollment at HBCUs and the role financial matters play in student enrollment. To address this gap in the …

Ergodicity Of Burgers' System, Szymon Peszat, Krystyna Twardowska, Jerzy Zabczyk

Journal of Stochastic Analysis

No abstract provided.

Two Of Kunita's Papers On Stochastic Flows In Early 1980s, Setsuo Taniguchi

Journal of Stochastic Analysis

No abstract provided.

Communications, Decision-Making, And Interactions Of A Multi-Agent Autonomous Vehicle System, Daniel Davis Smith

LSU Doctoral Dissertations

Autonomous vehicles are becoming ever more common and offer many attractive benefits to society. They can operate for long periods of time unattended, operate in environments that may be dangerous to humans, perform time consuming or repetitive tasks and all with greater efficiency and lower costs than humans. For these vehicles to be able to do these things, algorithms need to be designed and optimized that allow them to interact with the real-world environment in safe, effective, and efficient ways.

We designed and built a set of three homogeneous water-based autonomous surface vehicles equipped with appropriate sensors and communications ability …

Population Structure In Two Imperiled Sparrows With Differing Vagility, Amie Elizabeth Settlecowski

LSU Doctoral Dissertations

Characterizing population structure and genetic differentiation can inform the management of imperiled species and the relative influences of ecological and evolutionary factors on species evolution. One trait that is expected to influence the amount of population structure a species exhibits is vagility, or the ability to move across the landscape. Species with higher vagility may be more likely to disperse, potentially facilitating gene flow among populations and limiting population structure. My dissertation focuses on characterizing population structure in 2 imperiled sparrows that are both largely nonmigratory with broad distributions in eastern North America: Seaside Sparrow (Ammospiza maritima) and Bachman’s Sparrow …

Error Estimates For Discrete Approximations Of Game Options With Multivariate Diffusion Asset Prices, Yuri Kifer

Journal of Stochastic Analysis

No abstract provided.