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Model-Based Tests Of Historical Demography And Species Delimitation In The Caribbean Coral Reef Sponge Callyspongia, Melissa Barrett Debiasse
Model-Based Tests Of Historical Demography And Species Delimitation In The Caribbean Coral Reef Sponge Callyspongia, Melissa Barrett Debiasse
LSU Doctoral Dissertations
Coral reefs are the most productive and species rich ecosystems in the ocean yet we lack knowledge about the distribution of genetic variation the within and among reef species, particularly for the sponges (Porifera). My dissertation describes how genetic variation at mitochondrial and nuclear genes is partitioned among and within species in the sponge genus Callyspongia. I compared patterns of genetic diversity and population subdivision in the mitochondrial and nuclear genomes of one species, C. vaginalis, in Florida (Chapter 2). Previous work revealed three divergent mitochondrial lineages, but nuclear alleles did not correspond to either mitochondrial clade or geography. Coalescent …
Fixed-Time Schedule Effects On Participant Responding: An Evaluation Of Similar Vs. Dissimilar Schedule Programs Using A Group Design Approach, Jessica Pearl Alvarez
Fixed-Time Schedule Effects On Participant Responding: An Evaluation Of Similar Vs. Dissimilar Schedule Programs Using A Group Design Approach, Jessica Pearl Alvarez
LSU Doctoral Dissertations
We evaluated the effectiveness of fixed-time (FT) schedules of reinforcement at eliminating participant’s responding using a between-subjects group design. Participants experienced one of three conditions; a FT leaner schedule, a FT yoked schedule, or a FT denser schedule using a computerized experimental program. Dependent variables of interest are the total number of responses made during the fixed-time reinforcement phase and the latency until the participant met extinction or exit criteria.
Performing Joseph Cornell's Chronotopes Of Assemblage, Sarah Kathryn Jackson
Performing Joseph Cornell's Chronotopes Of Assemblage, Sarah Kathryn Jackson
LSU Doctoral Dissertations
In this project I study Joseph Cornell’s practices of art-making through a performative lens. Rather than focusing on his finished products, I am interested in his embodied processes of assemblage. I call on Mikhail Bakhtin’s theory of the chronotope to articulate how time and space operate within Cornell’s finished works and his processes of assemblage art. In so doing, I conceptualize Cornell’s textual chronotope, métaphysique d’éphemera or “everyday magic,” as well as his chronotopes of assemblage: wandering, archiving, collaging, and assembling. I move from the finished work to the contingencies and strategies of the performance of assemblage. This project is …
Development Of An Alternative Bait For The Louisiana Commercial Blue Crab (Callinectes Sapidus) Fishery, Angelle Nicole Anderson
Development Of An Alternative Bait For The Louisiana Commercial Blue Crab (Callinectes Sapidus) Fishery, Angelle Nicole Anderson
LSU Master's Theses
The blue crab (Callinectes sapidus) is a commercially, recreationally, and ecologically important species in Louisiana coastal waters. Louisiana landings account for more than 80% of Gulf of Mexico hard crab landings. In 2012, over 24 thousand metric tons of blue crab were landed in Louisiana with an economic value over $52 million. The blue crab fishery in the northern Gulf of Mexico relies heavily on Atlantic menhaden (Brevoortia tyrannus) for bait, which is a species with stock concerns resulting in approximately a 20% decrease in total allowable catch beginning in 2013. Decreased landings results in increased cost of B. tyrannus …
In Utero Exposure To Second-Hand Smoke Aggravates Adult Responses To Inhaled Irritants, Rui Xiao
In Utero Exposure To Second-Hand Smoke Aggravates Adult Responses To Inhaled Irritants, Rui Xiao
LSU Doctoral Dissertations
In utero exposure to second-hand smoke (SHS) has modulatory effects on adult lung responses to various irritants. To further elucidate diverse responses with different inhaled irritants and to understand how long the effects persist, we have focused on two environmentally-relevant and asthma-associated irritants--SHS and ovalbumin (OVA)--for adult mice that had been exposed in utero to SHS. We hypothesized that in utero SHS exposure aggravates lung responses to various inhaled irritants, including SHS and OVA, in adult mice beyond the age of 15 weeks; and that the responses will likely exhibit a sex bias. Pregnant BALB/c mice were exposed (days 6-19 …
Pro-Inflammatory Cytokines Induce Lipocalin-2 Expression In Vivo And In Vitro, Peng Zhao
Pro-Inflammatory Cytokines Induce Lipocalin-2 Expression In Vivo And In Vitro, Peng Zhao
LSU Doctoral Dissertations
Chronic inflammation in adipose tissue has been demonstrated to play an important role in the pathogenesis of insulin resistance. The infiltration of immune cells results in a significant increase of pro-inflammatory cytokines in adipose tissue that substantially affects adipocyte function. Lipocalin-2 (LCN2) is an adipocyte-secreted cytokine whose expression and secretion has been shown to be induced in obesity and insulin resistance in mouse and man. However, the underlying mechanisms have not been explored. Our studies indicate that interferon-gamma (IFNã) and tumor necrosis factor-alpha (TNFá), two primary pro-inflammatory cytokines secreted from immune cells, can induce LCN2 expression and secretion from adipocytes …
Efficient Dense 3d Reconstruction Using Image Pairs, Padmapriya Ravi
Efficient Dense 3d Reconstruction Using Image Pairs, Padmapriya Ravi
LSU Master's Theses
The 3D reconstruction of a scene from 2D images is an important topic in the _x000C_eld of Computer Vision due to the high demand in various applications such as gaming, animations, face recognition, parts inspections, etc. The accuracy of a 3D reconstruction is highly dependent on the accuracy of the correspondence matching between the images. For the purpose of high accuracy of 3D reconstruction system using just two images of the scene, it is important to _x000C_nd accurate correspondence between the image pairs. In this thesis, we implement an accurate 3D reconstruction system from two images of the scene at …
Avis De Recherche : Valentine Penrose, Œuvre Et Vie D'Une Artiste Surréaliste, Séverine Aline Orban
Avis De Recherche : Valentine Penrose, Œuvre Et Vie D'Une Artiste Surréaliste, Séverine Aline Orban
LSU Doctoral Dissertations
"Avis de Recherche: Valentine Penrose, vie et œuvre d’une artiste surréaliste" presents a new appreciation of the work of French artist, poet and novelist Valentine Penrose associated with the Surrealist Movement. This research offers the first detailed and accurate version of Valentine Penrose’s biography, which shows her relationship with artists and writers of her time, and her engagement during the Spanish Civil War and WWII. It compiles and publishes for the first time all her unpublished and ‘forgotten’ works with accompanying analyses for each piece. It demonstrates through the recording of her life and the exploration of her poetry how …
Identifying Ways Of Effective Communication Focused On Public Campaign Design, Ki Ho Park
Identifying Ways Of Effective Communication Focused On Public Campaign Design, Ki Ho Park
LSU Master's Theses
The purpose of this study was to identify the most effective way of communication in cause-related campaign design. The fundraising campaign selected for this study focused on children’s leukemia, “Draw a Message of Hope.” The five types of public campaign design were developed utilizing different elements and techniques of visual communication: (1) image plus text, (2) infographics, (3) motion graphics, (4) typography, and (5) description only. Each type of public campaign design was assessed in terms of (1) the extent to which audiences understand about the campaign and (2) the extent to which the materials encouraged the audience to participate …
Liberalism And The Dilemma Of Cultures, Ali Rezaie
Liberalism And The Dilemma Of Cultures, Ali Rezaie
LSU Doctoral Dissertations
In this project, through a closer examination of the controversies over Monica Ali’s Brick Lane (2003), Khaled Hosseini’s The Kite Runner (2003) and Azar Nafisi’s Reading Lolita in Tehran (2003), I seek to identify the elements of a defensible postcolonial vision. While postcolonialism is afflicted with many problematic assumptions, the exclusively liberal perspective which these authors seek to reaffirm in its place has its own plethora of defects. Ali, Hosseini and Nafisi merit a closer attention not only for their exposing some of the flawed views underlying postcolonialism but also for their demonstrating why an unqualified reversion to liberalism may …
A Captive Audience, Holley Shinn
A Captive Audience, Holley Shinn
LSU Master's Theses
A Captive Audience is a permanent onsite installation of cage furniture and a wildlife garden at Louisiana State University’s Raptor Rehabilitation Center. Both the furniture and the garden are intended to enrich the lives of permanently disabled raptors who live in captivity at the center.
Three Essays On Migration Decision, Migration Destination Choice, And Food Security: Evidence From Chitwan, Nepal, Madhav Regmi
Three Essays On Migration Decision, Migration Destination Choice, And Food Security: Evidence From Chitwan, Nepal, Madhav Regmi
LSU Master's Theses
This thesis research is based on data obtained from the Nepal Ethno Survey of Family, Migration and Development conducted in 396 farming households in the Eastern part of the Chitwan, Nepal. In a three essay thesis format, I explore the factors affecting migration decision and migration destination choices. I then establish a link between remittance and food security status of the surveyed households. In the first essay, I use a probit model to identify household decisions to send or not to send migrants, and identify factors affecting the decision process. I include individual, household and social network characteristics in the …
Decomposition At Three Aquatic And Terrestrial Sites In Southern Louisiana, Paul Max Bangs
Decomposition At Three Aquatic And Terrestrial Sites In Southern Louisiana, Paul Max Bangs
LSU Master's Theses
To compare decomposition potential variability in geographically distinct sites, this project deposited six pigs of comparable size to adult humans in pairs at three sites within southern Louisiana. These sites were: the east bank of the Mississippi River at Baton Rouge, “Red Pass” in the Bird Foot Delta near Venice, Louisiana, and the Grande Isle and Grand Terre Islands in the Gulf of Mexico. After partial decomposition of the three pairs of remains, one pig was placed onto land to simulate beaching by tidal action or recession of flood water. Each pig was allowed to continue decomposition. Despite geographic distance …
Genetics And Functions Of Herpes Simplex Virus Type-1 Membrane Proteins Ul20/Gk In Virion Envelopment And Entry, Anu Susan Charles
Genetics And Functions Of Herpes Simplex Virus Type-1 Membrane Proteins Ul20/Gk In Virion Envelopment And Entry, Anu Susan Charles
LSU Doctoral Dissertations
The envelopment and egress of the Herpes Simplex Virus is an important event in the life cycle of the virus. The important membrane proteins required for the envelopment and egress of the virus are glycoproteins gM, gK, gE and non-glycosylated membrane proteins UL20p and UL11. Among them one of the most critical protein is the UL20 protein which has four transmembrane domains with amino and carboxyl termini are predicted to lie within the cytoplasmic side of cellular membranes. Studies done in our laboratory have shown that deletion of UL20 or other lethal mutations have an adverse effect on envelopment and …
Effort-Based Decision-Making In Schizotypy, Jessica Elaina Mcgovern
Effort-Based Decision-Making In Schizotypy, Jessica Elaina Mcgovern
LSU Master's Theses
Avolition/apathy, defined as reduced initiation of or persistence in goal-directed behavior, is a pernicious, core negative symptom of schizophrenia. While deficits in effort-based decision-making have been proposed to underlie negative symptom deficits, it remains unknown whether subjective or objective motivation deficits are evident in individuals with elevated schizotypy, a trait associated with putative latent liability of developing psychosis. Thus, the present study examined whether and how objective and subjective motivation deficits manifest in individuals high (n = 57) versus low (n = 58) in schizotypy traits (based on a median-split of total experience scores on the Schizotypal Personality Questionnaire –Brief …
Effect Of Tissue Source On Adult Equine Multipotent Stromal Cell Pluripotency Induction Treatment With Synthetic Mrna, Javier Martin Jarazo
Effect Of Tissue Source On Adult Equine Multipotent Stromal Cell Pluripotency Induction Treatment With Synthetic Mrna, Javier Martin Jarazo
LSU Master's Theses
Autogenous and autologous adult multipotent stromal cells are applied to treat equine musculoskeletal injuries in clinical practice. However, options for autologous therapy in the equine specie are restricted due to the limited biological material obtained or MSCs tissue harvest procedure and because of their unpredictable in vivo behavior. Induced pluripotent stem cells represent an alternative to overcome these limitations. Traditionally, iPSCs are produced by introducing DNA for early embryonic genes into cells with viruses. The method tested in this study, avoids the use of viral vectors and potential for exogenous DNA integration into the cell’s genome by utilizing a lipid …
Characterization Of A Novel Negative Regulator Of Toxoflavin Production, Ntpr, In The Plant Pathogen Burkholderia Glumae That Causes Bacterial Panicle Blight Of Rice, Rebecca Ann Melanson
Characterization Of A Novel Negative Regulator Of Toxoflavin Production, Ntpr, In The Plant Pathogen Burkholderia Glumae That Causes Bacterial Panicle Blight Of Rice, Rebecca Ann Melanson
LSU Doctoral Dissertations
Burkholderia glumae is the major causal agent of bacterial panicle blight of rice, a disease that can cause significant yield losses. This bacterial pathogen produces a number of virulence factors that contribute to disease development. The phytotoxin, toxoflavin is required for full virulence and is the most important virulence factor in B. glumae. The known regulatory cascade of toxoflavin production involves the TofI-TofR quorum-sensing system, the transcriptional activators ToxJ and ToxR, and the toxoflavin biosynthesis and transport genes. Transposon mutagenesis of toxoflavin-producing B. glumae strains generated a number of mutants with increased toxoflavin production. Several of these mutants contained …
Split-Intransitivity In Swahili And Hittite: An Optimality-Theoretic Perspective, Tina M. Villa
Split-Intransitivity In Swahili And Hittite: An Optimality-Theoretic Perspective, Tina M. Villa
LSU Doctoral Dissertations
Much research on unaccusativity has been done over the past three-and-a-half decades since the formulation of the Unaccusative Hypothesis (Perlmutter 1978). Researchers have examined the semantics of intransitive verbs as well as their syntax to account for the classification of a verb as either unaccusative or unergative; however, for the most part, a similar conclusion across researchers has been reached that neither the semantics of the verb nor the syntactic structure is sufficient by itself to satisfy certain diagnostics of unaccusativity (Legendre and Sorace 2003). Levin and Rappaport Hovav (1995) argue that the syntactic classification of all verbs is semantically …
Effects Of Latitude On The Competitive Ability Of Native And Invasive Genotypes Of Phragmites Australis, Anthony K. Chow
Effects Of Latitude On The Competitive Ability Of Native And Invasive Genotypes Of Phragmites Australis, Anthony K. Chow
LSU Master's Theses
One commonly cited mechanism for the success of invasive species is their superior competitive ability relative to that of native species. Although 88% (22 of 25) of the empirical studies support the prediction that the strength of competition for native species increases with latitude, no studies to date have compared the competitive ability of native and co-occurring invasive species across a broad latitudinal range. In a greenhouse, I investigated whether the competitive ability of North American native and European invasive haplotypes of Phragmites australis vary with latitude. Another widespread, non-indigenous haplotype, the Gulf Coast haplotype, was also included for assessment …
Remittance And Migration: Impact On Technology Adoption, Natural Resource Conservation, And Household Welfare, Deborah Ann Williams
Remittance And Migration: Impact On Technology Adoption, Natural Resource Conservation, And Household Welfare, Deborah Ann Williams
LSU Master's Theses
Nepal is the perfect country to study all the facets of migration, sustainable agriculture and their subsequent impact on food systems. Droves of migrants are leaving rural Nepal for higher incomes to cover household daily expenses. The Government of Nepal (GON) encourages migration as a means to reduce poverty, and remittance already amounts to 25.83% of GDP, and it is expected to grow (Nepal Bastra Bank 2014, Thieme and Wyss 2005, Yang 2011). However, it is still unclear whether the mass exodus from rural areas and the growing dependence on remittance, the portion of the migrant workers' earnings sent back …
An Analysis Of "Printemps D'Amour" (Op.40) And "L'Union" (Op,48): Two Programmatic Piano Solos By Louis Moreau Gottschalk, Sam Vaden
LSU Master's Theses
Close analyses of two works by Gottschalk demonstrate, not just his consummate skill in evoking and sustaining extra-musical imagery, but also his firm control of harmony, motivic development, and form. In Printemps d'amour (1855), a mazurka inspired by Gottschalk's love for Ada McElhenney, a romance develops between two distinct theme-actors, both of whom grow ever more entwined. Comparison with Chopin's mazurka op. 50, no. 2, points out general similarities and profound differences. Analysis of L'Union (1862) follows, presenting a pasticcio rife with narrative and irony. The former manifests as a battaglia; the latter, as denial of listeners' expectations. Comparison with …
The Role Of Histone Methyltransferases In Determining Developmental Potential Of Bovine Oocytes, Jairo Alberto Sarmiento
The Role Of Histone Methyltransferases In Determining Developmental Potential Of Bovine Oocytes, Jairo Alberto Sarmiento
LSU Doctoral Dissertations
Histone proteins are proteins found in eukaryotic cells that associate with DNA to form the most basic structural unit of chromatin, called nucleosomes. The post-translational modifications of histones regulate developmental competence in bovine oocytes and early embryos. The difference in developmental competence between in vitro matured oocytes and in vivo matured oocytes was used to investigate the accumulation of transcripts for histone methyltransferases (HMTs) during oocyte maturation. Methyltransferases ASH1L, EHMT2, SUV39H1 and KDM6B were selected as genes of interest. Transvaginal ultrasound-guided aspiration (TUGA) was used to collect immature and in vivo matured bovine cumulus-oocyte complexes (COCs). Immature COCs collected via …
The Influence Of Personal And Educational Demographic Factors On The Productivity Of Farmers In Selected Geographic Regions Of The Ukraine, Viacheslav L. Sereda
The Influence Of Personal And Educational Demographic Factors On The Productivity Of Farmers In Selected Geographic Regions Of The Ukraine, Viacheslav L. Sereda
LSU Doctoral Dissertations
The primary purpose of this study was to determine Ukrainian farmers characteristics based on demographic information, describe their agricultural production, land ownership, best farming practices and determine factors that could influence farmers’ gross income. Of the tree Oblasts selected, a total of 250 farmers were randomly selected in two of the oblasts and 150 in the other (due to the size of the population in the smaller sample) for personal interviews by the raion specialists. Random samples were drawn from these lists using a computerized random numbers table. Survey was designed to collect necessary information. Raion specialists received one-day training …
Accountable Actors: Politics And Poetic Imagination In Huxley, Lewis, And Orwell, Sarah Beth Vosburg
Accountable Actors: Politics And Poetic Imagination In Huxley, Lewis, And Orwell, Sarah Beth Vosburg
LSU Doctoral Dissertations
What does it mean, and what does it take, to practice personal responsibility in the face of political oppression? In this dissertation, I trace the essential themes of responsibility through a critical analysis of three stories: Aldous Huxley’s Brave New World, C. S. Lewis’s That Hideous Strength, and George Orwell’s Nineteen Eighty-Four. No comparative study of these important works of twentieth-century political literature exists. Yet, each of these stories merits the attention of students of character and politics because all three unforgettably portray men who strive to live meaningful lives against the contrived meaning imposed on them by those in …
Gumbos- And Ionic Liquid-Coated Quartz Crystal Microbalance Sensors For Detection And Molecular Weight Determination Of Organic Vapors, Bishnu Prasad Regmi
Gumbos- And Ionic Liquid-Coated Quartz Crystal Microbalance Sensors For Detection And Molecular Weight Determination Of Organic Vapors, Bishnu Prasad Regmi
LSU Doctoral Dissertations
There has been an ever-increasing demand for the development of high-performance sensing devices for detection and discrimination of volatile organic compounds (VOCs) present in different environments. Among a number of sensing devices currently available, sorption-based sensors are particularly attractive because they are simple and inexpensive, require low power, and are appropriate for fabrication of multisensor arrays. A sorption-based sensor is comprised of a chemically active coating immobilized on the surface of a physical transducer. The chemically active film interacts with analytes, and the transducer converts the binding event into an electrical signal. This dissertation is focused on a sorption-based sensor …
Expression Of O-Linked N-Acetylglucosamine Modified Proteins And Production And Characterization Of Chlamydia Trachomatis Ct663, Octavia Y. Goodwin
Expression Of O-Linked N-Acetylglucosamine Modified Proteins And Production And Characterization Of Chlamydia Trachomatis Ct663, Octavia Y. Goodwin
LSU Doctoral Dissertations
O-linked â-N-acetylglucosamine is a regulatory post translational modification. This modification occurs on nearly all functional classes of proteins, in the nucleus and cytoplasm. O-GlcNAc is added to serine or threonine by O-GlcNAc transferase and removed by O-GlcNAcase. Previous attempts to study O-GlcNAc-modified proteins have resulted in low yields, making 3-dimensional structure determination impossible. In this dissertation O-GlcNAc transferase will be co-expressed with domains of human cAMP responsive element-binding protein (CREB1) and Abelson tyrosine-kinase 2 (ABL2) in E. coli, to produce O-GlcNAc-modified protein. The O-GlcNAc-modified protein was expressed in a variety of E. coli cell lines at a variety of conditions, …
Adapting Resilience To A New Hazard: Oil And Oysters In Coastal Louisiana, Audrey Maass
Adapting Resilience To A New Hazard: Oil And Oysters In Coastal Louisiana, Audrey Maass
LSU Master's Theses
Inherently resilient practices are one mechanism that communities engage in to cope with disruptive events. A community retains and passes down the practices associated with inherent resilience in their collective memory. The inherent resilience of a community is developed over time, yet the explanation provided by Colten et al. lacks a genesis of how this process developed particularly in relation to the oil industry’s entry into Louisiana. The foundations of these practices will be explored through historic court documents to find encounters between oystermen and oil spills. In addition to legal resources, I also investigate newspaper articles and other historic …
Comparison Of Land Building By Mississippi River Diversion Using One And Two Dimensional Numerical Models, Gyan Prasad Basyal
Comparison Of Land Building By Mississippi River Diversion Using One And Two Dimensional Numerical Models, Gyan Prasad Basyal
LSU Master's Theses
River sediment diversions have been identified as one strategy for creating new land and offsetting Mississippi River delta plain land loss. Numerical modeling is one tool for estimating the amount of land, geomorphic features and ecological benefits from diversions. There are a number of models proposed to estimate sediment diversion land building, ranging from simplistic approaches that provide bulk characteristics and use little computational resources to process-based models that require a large amount of input parameters and computing power. This thesis aims to compare and contrast two approaches to simulating the land building processes in a simplified receiving basin: a …
More Than Met The Eye: Industry In The Antebellum Gulf South, Michael Sean Frawley
More Than Met The Eye: Industry In The Antebellum Gulf South, Michael Sean Frawley
LSU Doctoral Dissertations
1860 was a census year. Census marshals spread out across the United States to record many different aspects of American society, including information on population, agriculture and, most importantly for this study, manufacturing. The antebellum Gulf South has traditionally been viewed as a region with little industrial development. But, both contemporaries and historians based their view of industry in the Gulf South on what was recorded in the census schedules. Alabama, Mississippi, and Texas were portrayed in the census as areas with little industrial development. But, as many historians have discovered, there were errors in the 1860 census, especially errors …
Outer Surface Lipoprotein Layer Homeostasis And Gene Regulation In Borrelia Burgdorferi, Poonam Dadhwal
Outer Surface Lipoprotein Layer Homeostasis And Gene Regulation In Borrelia Burgdorferi, Poonam Dadhwal
LSU Doctoral Dissertations
The outer surface lipoprotein (osp) layer forms an interface between the internal and the external environment of the Lyme disease spirochete, Borrelia burgdorferi. The homeostatic maintenance of the osp layer effectuates adaptation of B. burgdorferi as it gets transmitted from the tick vector to a mammalian host and vice-versa. However, the regulation of the outer surface lipoproteins (osps) is still a conundrum for borrelia scientists. Part of this dissertation inquires about the homeostatic maintenance of the osp layer. We found that the deletion of the dominantly expressed tick phase osp, OspA, induces expression of two other osps. OspD, and BBJ41. …