Digital Commons Network^™

Biomolecular Processing Platform And Uses Thereof, Francis Barany, George Grills, Robin L. Mccarley, Collin J. Mckinney, Dorel Moldovan, Michael C. Murphy, Dimitris E. Nikitopoulos, Sunggook Park, Elizabeth J. Podlaha-Murphy, Steven A. Soper

College of Science Patents

The present invention relates to a device comprising a biomolecular processor. Each biomolecular processor has one or more bioreactor chambers defined by a solid substrate; a support structure within each bioreactor; a cleaving enzyme immobilized to the support structure and operatively positioned within the bioreactor chamber to cleave monomer or multimer units of a biopolymer molecule operatively engaged by the cleaving enzyme; and one or more time-of-flight channels formed in the solid substrate and fluidically coupled to said one or more bioreactor chambers. Each of the time-of-flight channels have two or more sensors including at least (i) a first sensor …

Dearest, Grace Tessein

LSU Master's Theses

Dearest is the examination of what remains of a person, looking to the objects they cherished most while contemplating the inevitability of their certain absence. The work questions the futility of preservation in the measure of time, the failure of memories held in fragile containers, and the decay of the physical body. The materials that compose Dearest are chosen for their innate longevity and their ability to evoke remembrance.

Yes We Can Can, Eliseo Angel Casiano

LSU Master's Theses

Yes We Can Can is a compilation of paintings and short stories that depict my placement and role among substantially white rural communities in the South. Through portraiture in painting, I interpret family and biographical events that examine representations of race, family relationships, and my maneuverability through a space of otherness.

Casiano, 2018

Host And Symbionts In Pocillopora Damicornis Larvae Display Different Transcriptomic Responses To Ocean Acidification And Warming, Emily B. Rivest, Morgan W. Kelly, Melissa B. Debiasse, Gretchen E. Hofmann

Faculty Publications

© Copyright © 2018 Rivest, Kelly, DeBiasse and Hofmann. As global ocean change progresses, reef-building corals and their early life history stages will rely on physiological plasticity to tolerate new environmental conditions. Larvae from brooding coral species contain algal symbionts upon release, which assist with the energy requirements of dispersal and metamorphosis. Global ocean change threatens the success of larval dispersal and settlement by challenging the performance of the larvae and of the symbiosis. In this study, larvae of the reef-building coral Pocillopora damicornis were exposed to elevated pCO2 and temperature to examine the performance of the coral and its …

Factors Affecting The Choice, Intensity, And Allocation Of Irrigation Technologies By U.S. Cotton Farmers, Bijay K. Pokhrel, Krishna P. Paudel, Eduardo Segarra

Faculty Publications

© 2018 by the authors. We use the 2013 cotton precision farming survey data to study the adoption of irrigation technologies by cotton farmers in 14 states of the United States. We find that farmers with a higher irrigated yield, and who are from the Southern Plains (Texas and Oklahoma), adopt water-efficient irrigation technologies, such as sub-surface drip and trickle irrigation technologies. There are 10 irrigation technologies that farmers can adopt for cotton production in these 14 cotton-growing states. The intensity of the irrigation technologies, as measured by the number of irrigation technologies adopted in cotton production, is affected by …

Bending Gender In French Literature, Jacey Flatte

LSU Master's Theses

This paper looks at French literature that defies binary and heteronormative gender roles and identities. The literature spans from the seventeenth- to the nineteenth-century. My goal is not only to bring these pieces of literature to light, proving that non-binary genders have existed long before the recent liberal LGBTQIA+ movement, but also to help modernize these identities from the past. In doing this, I aim to explain that contemporary gender identities are not new, but timeless. The experiences seen in this literature are strikingly similar to how people experience gender today. As a result, I hope that readers will be …

The Body In Pain / The Body In Ecstasy, Shannon Kenny

LSU Master's Theses

The Body in Pain / The Body in Ecstasy is a series of short lyric essays/extended poems which catalogue major discriminatory movements against disabled people in the 20th and 21st century, specifically in the United States. My work contains duel storylines, using these movements/categories of violence as frames for my own personal narrative, and connecting individual experience to larger historical structures. I do this to disrupt the notion that history is disconnected from the present, and showcase how humans are built by context, where personal and political are inexorably intertwined, and social development is tied to both the body and …

Evaluating The Predictive Validity Of The Implementation Beliefs Assessment On Classwide Management Components, Sarah Alexa Metallo

LSU Doctoral Dissertations

Given the broad framework of the Positive Behavioral Interventions and Supports model, its barriers to adaptability and implementation in schools have affected an increased emphasis on exploration and measurement of treatment integrity. A tool directly linked with a model of treatment integrity is the Implementation Beliefs Assessment (IBA; Sanetti, Long, Neugebaur, & Kratochwill, 2012). The IBA has preliminary evidence indicating it is a psychometrically sound measure; however, since it is a measure related to behavior change, assessing its predictive validity of treatment integrity is a useful indicator of this tool’s value during the consultation process. The current study utilized multiple …

Generating Audio Using Recurrent Neural Networks, Andrew Pfalz

LSU Doctoral Dissertations

Long Short Term Memory cells are a type of recurrent neural network that perform well when predicting sequence data. This works presents four approaches to modeling audio data. The models are trained to predict either raw audio samples or magnitude spectrum windows based on prior input audio. In a process called sampling, the models can then be employed to generate new audio using what they learned about the data they were trained on.

Four methods for sampling are presented. The first has the model predict a vector for each vector in the input. The second has the model predict one …

Experimental Evaluation Of Lignocellulosic Biomass Pyrolysis By Dielectric Heating And Thermocatalytic Upgrading Of Pyrolysis Vapors Via Iron-Doped Montmorillonite Clay Catalyst, Candice Raffaela Ellison

LSU Doctoral Dissertations

This work is an investigation of microwave-assisted biomass pyrolysis and thermocatalytic upgrading of pyrolysis vapors. In the first two chapters, the microwave susceptibility of mixtures of biomass with potential microwave absorbers are characterized by dielectric measurements at microwave frequencies. Dielectric constant and dielectric loss factor of biomass mixtures with char and biomass mixtures with bentonite are found to increase quadratically with increasing weight percent of char or bentonite.

Chapter 3 presents a finite element model, developed in COMSOL Multiphysics, comparing two waveguide applicator configurations for microwave processing using biomass as a model material. A standing wave configuration results in intense …

Understanding “Southern” Identities And Confederate Iconography: Internal Orientalism, (Mis)Representation, And Social Media, Robert W. Perham

LSU Master's Theses

In light of recent debates surrounding Confederate iconography (flags, statues and symbols), this thesis has three foci. First, the continued construction of the American “South” as an internal “Other.” Second, the reactive perspectives taken by self-identifying “Southerners” who both support and denounce Confederate iconography. Third, the role that social media platforms (Facebook, Twitter and Instagram) have as sites that both disseminate hegemonic discourse and facilitate resistance. Drawing on a Foucauldian discourse analysis of content (news articles, posts, videos, images, memes) published and discussed on social media, I explore whether "the South" continues to be portrayed as a lesser "Other" nationally, …

A Novel Multiproxy Approach To Reconstructing Sea Surface Temperature In The Southwestern Gulf Of Mexico, Marissa Anne Vara

LSU Master's Theses

Coral Sr/Ca is a widely-used proxy for sea surface temperature (SST); however, discrepancies in the coral Sr/Ca-SST relationship among colonies of the same species makes uncertainty in absolute temperature reconstructions larger than the climate signal yet climate variability studies are possible. Furthermore, the riverine input of terrestrial carbonate weathering products to the coastal waters can disrupt the coral Sr/Ca-SST signal by changing local seawater chemistry. This study evaluates the fidelity and reproducibly of coral SST proxies (Sr/Ca, Li/Ca, Mg/Li, Sr-U, Mg/Ca, and U/Ca) and a riverine-upwelling proxy (Ba/Ca) in four Orbicella faveolata colonies in two reefs offshore from Veracruz, Mexico …

Risk Assessment Of Concrete Gravity Dams Under Earthquake Loads, Ufuk Sen

LSU Master's Theses

Dams are important structures to supply water for irrigation or drinking, to control flood, and to generate electricity. In seismic regions, the structural safety of concrete gravity dams is important due to the high potential of life and economic loss if they fail. Therefore, the seismic analysis of existing dams in seismically active regions is very crucial to predict responses of dams to ground motions. In this thesis, earthquake response of concrete gravity dams is investigated using the finite element (FE) method. The selected dam is the Pine Flat Dam which is located in the Central Valley of Fresno County, …

Risk, Responsibility, And Ethics In Professional And Technical Communication, Charley Grant Silvio

LSU Doctoral Dissertations

In this project, I present a novel and alternative approach for considering ethics in professional and technical communication, namely the ethics of responsibility theorized primarily by phenomenologist Emmanuel Levinas. To apply this new approach, I investigate a contemporary example in the rhetoric of investment bank Goldman Sachs before and during the 2008 U.S. Financial Crisis. In the early chapters, I review conventional ethical approaches—traditional and postmodern—in technical and professional communication (TPC) and consider their application to the Goldman Sachs example. This analysis reveals that these approaches, while useful in understanding the report’s general ethical framework, don’t fully describe the ethical …

Fractal Diffusion In High Temperature Polymer Electrolyte Fuel Cell Membranes, Bernhard Hopfenmüller, Reiner Zorn, Olaf Holderer, Oxana Ivanova, Werner Lehnert, Wiebke Lüke, Georg Ehlers, Niina Jalarvo, Gerald J. Schneider, Michael Monkenbusch, Dieter Richter

Faculty Publications

© 2018 Author(s). The performance of fuel cells depends largely on the proton diffusion in the proton conducting membrane, the core of a fuel cell. High temperature polymer electrolyte fuel cells are based on a polymer membrane swollen with phosphoric acid as the electrolyte, where proton conduction takes place. We studied the proton diffusion in such membranes with neutron scattering techniques which are especially sensitive to the proton contribution. Time of flight spectroscopy and backscattering spectroscopy have been combined to cover a broad dynamic range. In order to selectively observe the diffusion of protons potentially contributing to the ion conductivity, …

Critical Behavior In Ni2mnga And Ni2mn0.85cu0.15ga, Ahmad Us Saleheen, Jing Han Chen, David P. Young, Igor Dubenko, Naushad Ali, Shane Stadler

Faculty Publications

The critical behaviors of polycrystalline Ni2MnGa and Ni2Mn0.85Cu0.15Ga have been examined through high-resolution bulk magnetization measurements. The critical exponents, β and γ, were derived from modified Arrott plots using the Kouvel-Fisher method. The values of the extracted critical exponents satisfied the scaling equation of state and associated exponent relations, indicating self-consistency of the extracted values. In Ni2MnGa, the critical exponents (β = 0.401 ± 0.003, γ = 1.27 ± 0.02) indicate a deviation from the 3D-Heisenberg values toward the mean-field values, likely due to the presence of long-range Ruderman-Kittel-Kasuya-Yosida interactions. However, the critical exponents of Ni2Mn0.85Cu0.15Ga (β = 0.389 ± …

Effects Of Irradiation Dose On Sperm Production, Insemination, And Male Mating Possible Period In The Sweetpotato Weevil (Coleoptera: Brentidae), Satoshi Hiroyoshi, Takayuki Mistunaga, Tsuguo Kohama, Gadi V.P. Reddy

Faculty Publications

The sterile insect technique (SIT) has been used for the control or eradication of target insect pests. To successfully apply SIT, it is very important to clarify the effect of irradiation on male reproduction in the target pest, because their mating and spermiogenesis abilities affect the success of eradication program. The sweetpotato weevil, Cylas formicarius (Fabricius) (Coleoptera: Brentidae) is a notorious and worldwide pest of sweet potato. We investigated the effect of irradiation at five doses ranging from 0 (control) to 150 Gy on 9-d-old males. Survival rate of the control (no treatment) remained high from day 10 to 20 …

Micropaleontological Record Of A Preserved, Late Pleistocene Bald Cypress Forest On The Northern Gulf Of Mexico Inner Shelf, Jonathan Thien Truong

LSU Master's Theses

A cluster of previously buried Taxodium distichum stumps are exposed and preserved in growth position at the bottom of a trough on the inner Gulf of Mexico (GOM) continental shelf in 18 m water depth and 13 km offshore Orange Beach, AL. Radiocarbon ages from wood and optically stimulated luminescence (OSL) dating of sediments suggest a Marine Isotope Stage (MIS) 3 age, or older. This study builds on the previous work of Gonzalez (2018) and Obeclz (2017). Five biofacies were identified in vibracore collected in 2015 and 2016: 1) the Holocene Mississippi-Alabama-Florida (MAFLA) sand sheet, 2) a Holocene interbedded sand …

Two-Phase Flow Regime Map For Large Diameter Pipes And High-Velocity Flows, Matheus Sigaki Capovilla

LSU Master's Theses

Worst-case-discharge (WCD) calculations are a pre-requisite for any new well to be drilled in the Gulf of Mexico (GoM). Models that were mostly developed for production rates prediction are currently used to calculate the WCD rate. These models were mostly developed for pipe diameters and flow velocities much smaller than those expected during WCD events. Therefore, these models may be miscalculating WCD rates.

This study aims at analyzing one of possible sources of errors in these models: the flow regime maps. The influence of diameter change on flow regimes is discussed. A thorough literature review is carried out for different …

The Fabrication Of High-Aspect Ratio Gratings For Talbot Interferometer With Medical Imaging Application., Vikaram Singh

LSU Master's Theses

X-ray Phase contrast-based Talbot interferometer creates high contrast between weak and strong absorbing materials, which makes it effective in imaging soft tissues. However, its performance is bounded by the aspect-ratio, features and symmetry of its gratings. For 40 KeV energy X-rays, the analyzer grating thickness should be 100 µm or more to achieve > 90% absorption in order to obtain high contrast images. Moreover, the smaller period in grating is desired for higher resolution. Therefore, researchers are exploring various fabrication techniques to achieve greater aspect-ratio gratings. Utilizing modern LIGA techniques, the aspect-ratio of gratings can be improved with a simplified …

Predictive Data-Based Multi-Hazard Hurricane Fragility Models For Single Family Homes, Carol Constantin Massarra

LSU Doctoral Dissertations

Recently, data-based fragility models have been implemented to explain multi-hazard hurricane building fragility. However, deficiencies in current fragility models exist. Typically, categorical dependent variables are modeled as continuous numerical variables, which may result in inefficient standard errors for estimated coefficients and the models may result in probabilities greater than one or less than zero. Additionally, published models are limited to inference and interpretation of main variable coefficients without consideration of interaction terms between the variables and do not consider evaluation of model performance.

This dissertation addresses these deficiencies in the development of predictive data-based fragility models for multinomial categorical damage …

The Polyphyly Of Plasmodium: Comprehensive Phylogenetic Analyses Of The Malaria Parasites (Order Haemosporida) Reveal Widespread Taxonomic Conflict, Spencer C. Galen, Janus Borner, Ellen S. Martinsen, Juliane Schaer, Christopher C. Austin, Christopher J. West, Susan L. Perkins

Faculty Publications

© 2018 The Authors. The evolutionary relationships among the apicomplexan blood pathogens known as the malaria parasites (order Haemosporida), some of which infect nearly 200 million humans each year, has remained a vexing phylogenetic problem due to limitations in taxon sampling, character sampling and the extreme nucleotide base composition biases that are characteristic of this clade. Previous phylogenetic work on the malaria parasites has often lacked sufficient representation of the broad taxonomic diversity within the Haemosporida or the multi-locus sequence data needed to resolve deep evolutionary relationships, rendering our understanding of haemosporidian lifehistory evolution and the origin of the human …

Sugarcane Cell Wall-Associated Defense Responses To Infection By Sporisorium Scitamineum, João P.R. Marques, Jeffrey W. Hoy, Beatriz Appezzato-Da-Glória, Andrés F.G. Viveros, Maria L.C. Vieira, Niranjan Baisakh

Faculty Publications

The plant cell wall is known to be the first barrier against plant pathogens. Detailed information about sugarcane cell wall-associated defense responses to infection by the causal agent of smut, Sporisorium scitamineum, is scarce. Herein, (immuno)histochemical analysis of two smut resistant and two susceptible sugarcane cultivars was conducted to understand host cell wall structural and compositional modifications in response to fungal infection. Results showed that the fungus grew on the surface and infected the outermost bud scale of both susceptible and resistant cultivars. The present findings also supported the existence of early (24 h after inoculation) and later (72-96 h …

Designing A World: A Foray Into Scenography And Settling, Nathan David Ynacay

LSU Master's Theses

This work examines the design process as taught and what was practiced during Louisiana State University’s production of LMNOP the Muzical.

This will examine the design process as typically taught to undergraduate theatre students in all aspects of the discipline. The collaborative nature of the design process as taught to cast members, directors, and production team will be examined. After this examination, the design process for Louisiana State University’s production of LMNOP the Muzical will be used to compare and contrast the actual process with the theory of a collaborative design process. After, there will be an evaluation of …

Delivering Entrapped Lactobacillus Plantarum Ncimb 8826 With Cereal-Legume Infant-Weaning Food To Improve Children's Gastrointestinal Health, Emmanuel Kyereh

LSU Doctoral Dissertations

Diarrhea remains the second leading cause of death among children under five globally, about one in five children’s deaths are attributable to it. In recent years,’ probiotics have been used as an alternative therapy measure to manage the situation. A promising delivery method that entraps probiotics in infant formula may help prevent or reduce diarrhea. The overall objectives of this study were to deliver entrapped Lactobacillus Plantarum NCIMB 8826 with maize-legume fortified complementary weaning food to reduce diarrhea and improve the gut microbiota. Both in vitro and in vivo models were used in this study and a mouse (C57BL/6 mice …

Mari Folk Music Influences On Andrei Eshpai's Viola Concerto, Vengerskie Napevy (Hungarian Tunes), And A Transcription Of Hungarian Tunes For Viola In The Viola Repertoire, Anna Petrovna Ivanova

LSU Doctoral Dissertations

Andrei Eshpai was one of the most renown composers who drew on the Mari folk music traditions, within the confines of Western classical music. One of the main purposes of the research is to show how the Mari folk music was applied in Eshpai’s compositions for the viola. In the current research, I will explain the similarity between folk music of Mari and Hungary because the researched composition Hungarian Tunes by Eshpai is based on Mari tunes, however is called Hungarian Tunes. Another purpose of this research is to provide musical analysis and a performance guide for the compositions, where …

Labor And Delivery: Television Performances By Pregnant Actresses From 1948-2016, Evleen Michelle Nasir

LSU Doctoral Dissertations

Labor and Delivery: Television Actresses’ Pregnant Performances from 1948-2016, examines the labor of six pregnant actresses working on United States television. Mary Kay Stearns, Lucille Ball, Jane Leeves, Kerry Washington, and Katey Sagal all worked through pregnancies while filming their respective television shows. These women exemplify the multitude of actresses who maintained their careers and their pregnancies in the television industry. This is the first study of its kind to examine the labor of an actresses’ pregnant body on film while she performs a role other than herself. Previous examinations of pregnancy in performance are few but have largely focused …

Asynchronous Distributed Optical Mutual Exclusion Interconnect And Method, Ramachandran Vaidyanathan, Ahmed B. Mansour

College of Engineering Patents

A system and method for using the system includes a first and second waveguide and optical receiver elements coupled therebetween. The optical receiver elements include a microring configured to admit light from and transfer light to at least one of the first and second waveguides, a photodetector, coupled to the microring, configured to detect light admitted to the microring, and an enable circuit, coupled to the microring, configured to be switched between a light admitting state to enable light to be admitted to the microring and a light rejection state to prevent light from being admitted to the microring. Each …

Penny And Pound: Unpacking The Impacts Of The Fringe Economy On Household Economic Wellbeing, Zibei Chen

LSU Doctoral Dissertations

As an increasing number of American families cope with chronic financial stability, they have withdrawn from traditional financial systems and instead have chosen to participate in the fringe economy where alternative financial services (AFS) and products are costly. Although individuals’ lives have become highly financialized, the issue of financial inclusion is not well understood. Research to date primarily has focused on the banked and unbanked group, yet, evidence indicates the presence of a sizeable group of people who are underbanked. Using a posttest-only, nonequivalent control group quasi-experimental design, this dissertation study investigated banking statuses (unbanked, underbanked, and banked), and AFS …

The Interval Dissonance Rate In Chopin’S Études Op. 10, Nos. 1-4: Dissecting Arpeggiation, Chromaticism, And Linear Progressions, Nikita Mamedov

LSU Doctoral Dissertations

Chopin’s twenty-seven piano études display the composer’s poetic musical language, uniting keyboard techniques, virtuosity, and artistic imagery, while preserving Romantic lyricism and songfulness. Each of these studies is unique in its set of pianistic challenges, compositional processes, and difficulty level. Schenkerian analysis provides an interpretation of relationships between the notes that constitute the harmony and the melody. This type of analysis allows one to understand the theoretical aspects that are necessary to play Chopin’s études. The Schenkerian theories can be used to amalgamate pianism and performance with harmony and analysis. Furthermore, the Schenkerian understanding of these études provides an analytical …