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2012

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Comparative Genomics, Transcriptome Analysis And Characterization Of Selected Regulatory Genes Of Burkholderia Glumae, Felix Francis Jan 2012

Comparative Genomics, Transcriptome Analysis And Characterization Of Selected Regulatory Genes Of Burkholderia Glumae, Felix Francis

LSU Master's Theses

Burkholderia glumae is the primary causal agent of bacterial panicle blight of rice, which is becoming a major threat to global rice production. The genome of a highly virulent B. glumae strain, 336gr-1 that was isolated from rice in Louisiana, was sequenced to better understand the genome-scale characteristics, particularly that of its pathogenicity. Comparative genomic analyses with another strain, BGR1 that was isolated from Korea, revealed several unique regions present in the genomes of these two geographically separated phytopathogenic bacteria. Genome plasticity, primarily caused by a horizontal gene transfer, was observed in these closely related strains of Burkholderia that are …

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En(Gendering) Policy: Gender Policies In Former Soviet Republics, Natasha Lachelle Bingham Jan 2012

En(Gendering) Policy: Gender Policies In Former Soviet Republics, Natasha Lachelle Bingham

LSU Doctoral Dissertations

This dissertation examines gender policies in former Soviet republics. Gender policies are depicted as traditional policies (including such policies as child support, spousal support, and inheritance rights), violence against women policies (domestic violence, marital rape, sexual assault, and sexual harassment), and human trafficking policies. It builds upon previous works with a multi-methodological approach (content analysis, logistical regression, and qualitative survey analysis). The focus here is on the factors that influence adoption of formal policies in former Soviet republics from 1993-2008. I explore variance across both countries and policy areas, assessing whether (and why) certain post-Soviet states are more likely to …

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Influences On Behavior Adaptations To Reduce Exposure To Environmental Hazards Among Residents Of Louisiana's Upper Industrial Corridor, Corrinthia Marie Hinton Jan 2012

Influences On Behavior Adaptations To Reduce Exposure To Environmental Hazards Among Residents Of Louisiana's Upper Industrial Corridor, Corrinthia Marie Hinton

LSU Master's Theses

Over the past century, the growth in petrochemical manufacturing within Louisiana’s Upper Industrial Corridor brought economic development, but also introduced toxic emissions and environmental exposure risks to residents of the area. For the citizens living in close proximity to multiple facilities there is the added risk of chemical exposure from environmentally hazardous accidents. This study seeks to gain insights into patterns of risk-reducing behaviors of residents in East Baton Rouge Parish so that better educational outreach programs can be developed. This research addresses the following questions: To what extent are residents of Baton Rouge taking steps to reduce environmental exposure …

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Generation And Characterization Of High Co₂ Requiring Mutants In Chlamydomonas Reinhardtii, Yunbing Ma Jan 2012

Generation And Characterization Of High Co₂ Requiring Mutants In Chlamydomonas Reinhardtii, Yunbing Ma

LSU Doctoral Dissertations

Chlamydomonas reinhardtii (referred to as C. reinhardtii hereinafter) possesses a CO2 concentrating mechanism (CCM) that allows the alga to grow at low CO2 concentrations (100 ppm CO2 in air). This dissertation represents the results from the characterization of three CCM mutants, as well as generation of eleven more potential mutants deficient in the CCM. One common feature seen in photosynthetic organisms possessing a CCM is the tight packaging of Rubisco within the cell. In many eukaryotic algae, Rubisco is localized to the pyrenoid, an electron dense structure within the chloroplast. The first mutant characterized has a highly disorganized pyrenoid. The …

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Modulation Of Mesenchymal Stem Cell Behavior By Nano And Micro-Sized Beta-Tricalcium Phosphate Particles In Suspension And Composite Structures, Lekeith Terrell Jan 2012

Modulation Of Mesenchymal Stem Cell Behavior By Nano And Micro-Sized Beta-Tricalcium Phosphate Particles In Suspension And Composite Structures, Lekeith Terrell

LSU Master's Theses

Nano and micro particles have steadily grown in interest for synthetic bone composite structures. Nano and micro sized calcium phosphates especially are of interest because of the osteoinductive behavior of calcium phosphate. Engineered composites incorporating polymers and ceramics, such as poly l-lactic acid (PLLA)/β-TCP, for bone tissue regeneration have been well investigated for their proliferative and osteoinductive abilities. Limited research has been done to thoroughly investigate the effects of various sized β-TCP particles on human mesenchymal stem cell behavior. Foreign bodies are known to elicit an inflammatory and cytotoxic response and several nano-particles are known to elicit cytotoxic and pro-inflammatory …

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Climate Change Displacement And Global Governance: A Case Study Of Three Intergovernmental Organizations And The Conflict Between The Member States And Bureaucracy, Andrea C. S. Berringer Jan 2012

Climate Change Displacement And Global Governance: A Case Study Of Three Intergovernmental Organizations And The Conflict Between The Member States And Bureaucracy, Andrea C. S. Berringer

LSU Doctoral Dissertations

Climate change is a topic most often broached by environmental scientists and activists and its effects are discussed in terms of animal populations and atmospheric events. However, its direct effect on human life is yet to garner such attention. A changing climate will affect how people are able to use their environment, if at all. Sea level rise and desertification will force a shift in human habitation. How the world seeks to deal with this shift is yet to be seen. The global governance of climate change-induced displacement is currently at the stage of ad hoc development. Legal and conceptual …

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The Scope And Limitations Of Transcyclopalladation Reactions On Silica Gel, Jessica Lamb Jan 2012

The Scope And Limitations Of Transcyclopalladation Reactions On Silica Gel, Jessica Lamb

Undergraduate Theses and Senior Projects

No abstract provided.

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Microencapsulation Of Self-Healing Concrete Properties, James Gilford Iii Jan 2012

Microencapsulation Of Self-Healing Concrete Properties, James Gilford Iii

LSU Master's Theses

ABSTRACT Recent studies in the literature have demonstrated the ability of self-healing processes to be effective in enhancing the overall life of concrete. The main goal of this project is to evaluate and to control specific parameters for the production of an effective self-healing matrix that can be utilized within the application of self-healing concrete. Therefore, the project objective is to synthesize microcapsules using dicyclopentadine and sodium silicate and to evaluate the effects of pH, temperature, and agitation rate on microcapsule morphology. The microcapsule diameter, yield analysis, and shell thickness were characterized using scanning electron microscopy. During the experimental analysis, …

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Metabolic Downregulation During Diapause In Embryos Of Artemia Franciscana, Yuvraj Nanasaheb Patil Jan 2012

Metabolic Downregulation During Diapause In Embryos Of Artemia Franciscana, Yuvraj Nanasaheb Patil

LSU Doctoral Dissertations

Encysted embryos of Artemia franciscana undergo a dramatic respiratory depression upon release from the adult female as they enter a state of hypometabolism termed diapause. The mechanisms by which such a respiratory depression is achieved remain unexplained. Evidence presented here shows that strategic enzymes involved in trehalose catabolism are inhibited during diapause, namely trehalase, hexokinase, pyruvate kinase and pyruvate dehydrogenase. Trehalose is the sole source of fuel in the embryos of A. franciscana, and hence downregulation of trehalose catabolism results in severe limitation of metabolic fuel available to the embryo during diapause. Western blot data demonstrates that pyruvate dehydrogenase …

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The Role Of Music-Making In The Identity Construction Of Members Of An Adult Community Concert Band, Pamela G. Taylor Jan 2012

The Role Of Music-Making In The Identity Construction Of Members Of An Adult Community Concert Band, Pamela G. Taylor

LSU Doctoral Dissertations

The purpose of this qualitative case study was to ascertain how music-making and band membership contributed to the identities of members of the New Orleans Concert Band and how their identities influenced their behaviors. The musician role identity of members of the New Orleans Concert Band, an adult community band, was examined through the lens of identity theory using ethnographic methods. Findings were based upon interviews with 37 band members, observations of rehearsals and concerts, and an examination of the organization’s documents. Results indicated that members valued individual and group music-making, literature played by the band, and social aspects of …

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Design And Optimization Of 2.5 Dimension Porous Media Micromodel For Nanosensor Flow Experiments, Saade Alexis Bou-Mikael Jan 2012

Design And Optimization Of 2.5 Dimension Porous Media Micromodel For Nanosensor Flow Experiments, Saade Alexis Bou-Mikael

LSU Master's Theses

Micromodels are used to visualize and study pore-scale phenomena such as immiscible displacements in porous media, foam flow behavior, and CO2 flooding. The understanding gained from these experiments can be used to develop models to predict future behavior of the reservoir. Most micromodels are constructed using lithography techniques that are restricted to 2D patterns that require artificial generation or manipulation of images to develop connected micromodels. Characteristics innate to the original rock structure are often lost or skewed in developing micromodels that bear little resemblance to the original media. Alternative microfabrication techniques using a micromilling tool have allowed us to …

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Online Reviews And Consumers' Willingness To Pay: The Role Of Uncertainty, Yinglu Wu Jan 2012

Online Reviews And Consumers' Willingness To Pay: The Role Of Uncertainty, Yinglu Wu

LSU Doctoral Dissertations

Empirical studies of online reviews have found that valence (average rating) has a consistently positive impact on consumers’ willingness to pay (WTP), but volume does not. Although two studies tried to explain this phenomenon using different perspectives (Wu and Ayala, 2012; Sun, 2012), neither study can fully accommodate the consumer behaviors observed by the other. This dissertation adopts a theoretical framework that can explain the consumer behaviors observed in both studies as well as the varying influence of review volume at the individual level. Specifically, several studies were conducted to investigate the relationship between bidirectional online seller reviews (e.g., the …

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An Investigation Into The Moderating Role Of Fear Appeals On The Relationship Between Regulatory Fit And Persuasion, Nam Young Kim Jan 2012

An Investigation Into The Moderating Role Of Fear Appeals On The Relationship Between Regulatory Fit And Persuasion, Nam Young Kim

LSU Doctoral Dissertations

As one of the ways to persuade young people effectively, several scholars have indicated that using a tailored message that is consistent with individuals’ concerns and interests can influence their attitude and behavioral changes. Among diverse tactics to construct tailored health-messages, this research especially paid attention to individuals’ motivational goals (i.e., regulatory focus) that make them more inclined to a certain outcome. While promotion-oriented individuals primarily focus on how to achieve a desired ending, prevention-oriented individuals mainly focus on avoiding undesirable outcomes (Higgins, 1997; Higgins et al., 2001). Although numerous studies support the positive effects of the congruency between regulatory …

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Making News In 140 Characters: How The New Media Environment Is Changing Our Examination Of Audiences, Journalists, And Content, Ashley Elizabeth Kirzinger Jan 2012

Making News In 140 Characters: How The New Media Environment Is Changing Our Examination Of Audiences, Journalists, And Content, Ashley Elizabeth Kirzinger

LSU Doctoral Dissertations

This project answers the following questions: What does political reporting on social media look like? How is political journalists’ use of social media changing their relationships with sources and fellow political journalists? Triangulating qualitative and quantitative research methods (content analysis, social network analysis, and in-depth interviews) in an examination of Twitter, a social media platform popular among journalists, this project provides insight into how changes in media routines are affecting news content.

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Synthesis And Characterization Of Red And Near-Infrared Bodipy-Based Fluorophores For Various Biological Applications, Timsy Kaur Uppal Jan 2012

Synthesis And Characterization Of Red And Near-Infrared Bodipy-Based Fluorophores For Various Biological Applications, Timsy Kaur Uppal

LSU Doctoral Dissertations

ABSTRACT 4,4-Difluoro-3a,4a-diaza-s-indacene, better known as BODIPY® dyes, have attracted considerable attention due to their intriguing physicochemical and spectral properties, including high absorption coefficient, fluorescence quantum yield and good photochemical stability. Despite the recent progress achieved in this field, the synthesis of BODIPY derivatives that absorb and emit in the red- and NIR-region of the electromagnetic spectrum and their application to biomolecular targets, represents a long-standing challenge in BODIPY chemistry. This research work is therefore focused on the synthesis and characterization of red and NIR-emissive BODIPY-based fluorophores for various bioanalytical and biomedical applications. Chapter 1 of this dissertation represents a concise …

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Conformance Testing Of Peer-To-Peer Systems Using Message Traffic Analysis, John Wesley Burris Jan 2012

Conformance Testing Of Peer-To-Peer Systems Using Message Traffic Analysis, John Wesley Burris

LSU Doctoral Dissertations

Peer-to-Peer architectures are used by a large number of distributed systems; however, the challenges such as maintaining a reliable and stable peer-to-peer network can make such networks undesirable for distributed systems. Peer-to-peer architectures are designed to be executed on systems with diverse hardware configurations, distant geographic locations, and varied, unpredictable Internet connectivity that make the software testing process difficult. This research defines a method for conformance testing peer-to-peer content distribution systems called “Method for Conformance Testing by Analyzing Message Activity” (MCTAMA). MCTAMA uses a common representation for describing the behavior of nodes during both design and deployment. ATAMA generates, evaluates …

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Examination Of The Reliability And Validity Of A New Observation Measure For Autism Spectrum Disorders: The Autism Spectrum Disorder Observation For Children, Daniene Neal Jan 2012

Examination Of The Reliability And Validity Of A New Observation Measure For Autism Spectrum Disorders: The Autism Spectrum Disorder Observation For Children, Daniene Neal

LSU Doctoral Dissertations

With increasing attention being drawn to autism spectrum disorders (ASD), specifically with regard to early and accurate diagnosis and treatment, researchers and clinicians alike have placed emphasis on finding assessment tools that can aid in this goal. The purpose of this study is to examine the psychometric properties of a new observation measure for ASD, the Autism Spectrum Disorders-Observation for Children (ASD-OC). The ASD-OC was found to have good to excellent interrater reliability, and excellent internal consistency (ƒÑ = .96). As a result of these initial reliability analyses, nine items were removed from the scale. The resulting 45 item ASD-OC …

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The Responsibility Of Clothing Slaves In The United States As Described In Slave Petitions, 1775 To 1867, Ryan Jerel Aldridge Jan 2012

The Responsibility Of Clothing Slaves In The United States As Described In Slave Petitions, 1775 To 1867, Ryan Jerel Aldridge

LSU Doctoral Dissertations

The content analysis of eighteenth and nineteenth century slave petitions identified slave dress terms and descriptors by type and frequency and a descriptive analysis of slave dress petitions revealed the following themes: the expense and burden attributed to clothing slaves, slave dress neglect, hiring contracts that included slave dress, the use of slave dress as a reflection of the slaveholders character, compensation for slave dress provided by an individual other than the slaveholder, the quality of slave dress, the distribution of slave dress, and slave dress terminology descriptors. The most frequent specific provision request for slave dress items consisted of …

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A Cross-Sectional Study Of The Relationship Between Political Ideology And State Legislative Responses To Payday Lending, Louie Fletcher Bickham Iii Jan 2012

A Cross-Sectional Study Of The Relationship Between Political Ideology And State Legislative Responses To Payday Lending, Louie Fletcher Bickham Iii

LSU Master's Theses

The present study examines the relationship between state electorate and state government political ideologies and state legislative responses to payday lending. Payday lending is a form of short-term, high-interest credit (e.g., Graves, 2003; Karger, 2005), and components of states’ legislative responses toward payday lending regulation serve as dependent variables in this study. The internal determinants model serves as the policy innovation model, predicting the attributes of states that influence legislative responses to social constructs (Berry & Berry, 1999; Mohr, 1969). People espousing liberal political ideology believe in using governmental intervention to ensure corporate social responsibility, while those adhering to a …

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Country Of Illusion: Imagined Geographies And Transnational Connections In F. Scott Fitzgerald's America, Charles Mitchell Frye Iii Jan 2012

Country Of Illusion: Imagined Geographies And Transnational Connections In F. Scott Fitzgerald's America, Charles Mitchell Frye Iii

LSU Doctoral Dissertations

The two decades between World Wars I and II were a remarkably isolationist, xenophobic period in the history of American politics and culture. In the era’s literature, however, some US authors repurposed regional writing as a medium for rethinking conservative nationalism and for imagining their country’s place in the emerging global community. F. Scott Fitzgerald, whose career successes and failures mirrored the parabolic national pattern of Boom and Bust, was one such author. Though his works have seldom been interpreted through a regionalist lens, Fitzgerald lived in and wrote about every major American section, often planting tropes of transregional and …

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Yogurt Cultures Survive Upon Exposure To Two Antimicrobials And Streptococcus Thermophilus St-M5 Acquired Resistance To Both Antimicrobials, Maria Carolina Vives Habeych Jan 2012

Yogurt Cultures Survive Upon Exposure To Two Antimicrobials And Streptococcus Thermophilus St-M5 Acquired Resistance To Both Antimicrobials, Maria Carolina Vives Habeych

LSU Master's Theses

Different antimicrobials are added in the manufacturing of dairy products such as flavored yogurts and processed cheese. Potassium Metabisulfite (PM) and Potassium Nitrite (PN) have been reported to have antimicrobial effect on pathogenic microorganisms such as Clostridium botulinum and Listeria monocytogenes. Yogurt is known for its health benefits, due to the presence of cultured bacteria. PM and PN are not commonly used in the dairy industry hence it would be interesting to study their influence in yogurt culture bacteria. The objectives of this study were: 1. to elucidate the influence of PM and PN at various concentrations, on the growth …

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From The Viewbook To Facebook: A Content Analysis Of Universities' Facebook Posts To Measure Organization-Public Relationships, Aariel Roxanne Charbonnet Jan 2012

From The Viewbook To Facebook: A Content Analysis Of Universities' Facebook Posts To Measure Organization-Public Relationships, Aariel Roxanne Charbonnet

LSU Master's Theses

This study examined StudentAdvisor.com's top 25 social media colleges to determine the ways in which these universities communicated with their various publics on Facebook. Using Hon and Grunig's models of public relations as frameworks, a quantitative content analysis was performed. The study considered each individual post on the universities' Facebook walls (n=709) over the course of a three-week period. The study's research questions were based on whether the posts promoted Hon and Grunig's relationship indicators, as well as what public relations models the posts resembled. Results indicated that posts were least likely to resemble the two-way symmetrical model and seldom …

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Cluster Based Jamming And Countermeasures For Wireless Sensor Network Mac Protocols, David Trammell Jan 2012

Cluster Based Jamming And Countermeasures For Wireless Sensor Network Mac Protocols, David Trammell

LSU Doctoral Dissertations

A wireless sensor network (WSN) is a collection of wireless nodes, usually with limited computing resources and available energy. The medium access control layer (MAC layer) directly guides the radio hardware and manages access to the radio spectrum in controlled way. A top priority for a WSN MAC protocol is to conserve energy, however tailoring the algorithm for this purpose can create or expose a number of security vulnerabilities. In particular, a regular duty cycle makes a node vulnerable to periodic jamming attacks. This vulnerability limits the use of use of a WSN in applications requiring high levels of security. …

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Playing The Christ Card: Courting Christians Through Religious Appeals In Political Campaigns, Matthew Lee Thornton Jan 2012

Playing The Christ Card: Courting Christians Through Religious Appeals In Political Campaigns, Matthew Lee Thornton

LSU Doctoral Dissertations

In spite of a corpus of work over the last three decades acknowledging the centrality of religion in politics, (see e.g. Hunter, 1991; Layman, 2001; Putnam & Campbell, 2010; Wuthnow, 1988), there remains a scarcity of research examining the consequences of religious communication in political campaigns. The current study fills this void through an empirical exploration of the effects of religious campaign appeals on prospective voters. Specifically, this interdisciplinary investigation develops a theoretical framework and subsequent expectations as to how religious appeals are likely to activate individual religiosity thereby influencing the formation of political attitudes. Hypothesized expectations are then tested …

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Early Voting In The 2004 Presidential Election, James Michael Siira Jan 2012

Early Voting In The 2004 Presidential Election, James Michael Siira

LSU Doctoral Dissertations

The addition of early voting laws has led to the many changes in the US political system. In this dissertation I examine early voting early voting in a number of different contexts. First, how early voting fits in with the larger issue of voter turnout in the U.S. Second, why some states have early voting policies and other states choose to not have those policies. Third, how state-level political parties view the option to cast an early vote. Fourth, the differences between early voters, election day voters, and non-voters. Fifth, what are the determents of casting an early ballot. Sixth, …

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Visual Translation: A New Way To Design A Chinese Typeface Based On An Existing Latin Typeface, Yifang Cao Jan 2012

Visual Translation: A New Way To Design A Chinese Typeface Based On An Existing Latin Typeface, Yifang Cao

LSU Master's Theses

The visual consistency of branding makes a significant difference when successfully introduced to another culture. My study focuses on how to facilitate a smooth visual transition in western branding from Latin letters to Chinese characters. To move beyond traditional Chinese type design, Visual Translation introduces a new method for designing Chinese typefaces using existing Latin typefaces. This web-based educational tool seeks to help Chinese graphic design students and type enthusiasts, with emphasis on designers who are working in a cross-cultural environment to maintain visual consistency for branding.

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Inefficient Replication Reduces Reca-Mediated Repair Of Uvdamaged Plasmids Introduced Into Competent Escherichia Coli, Harout Arthur Jeiranian, Charmain T. Courcelle, Justin Courcelle Jan 2012

Inefficient Replication Reduces Reca-Mediated Repair Of Uvdamaged Plasmids Introduced Into Competent Escherichia Coli, Harout Arthur Jeiranian, Charmain T. Courcelle, Justin Courcelle

Biology Faculty Publications and Presentations

Transformation of Escherichia coli with purified plasmids containing DNA damage is frequently used as a tool to characterize repair pathways that operate on chromosomes. In this study, we used an assay that allowed us to quantify plasmid survival and to compare how efficiently various repair pathways operate on plasmid DNA introduced into cells relative to their efficiency on chromosomal DNA. We observed distinct differences between the mechanisms operating on the transforming plasmid DNA and the chromosome. An average of one UV-induced lesion was sufficient to inactivate ColE1-based plasmids introduced into nucleotide excision repair mutants, suggesting an essential role for repair …

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Uvrd Participation In Nucleotide Excision Repair Is Required For The Recovery Of Dna Synthesis Following Uv-Induced Damage In Escherichia Coli, Kelley Nicole Newton, Charmain T. Courcelle, Justin Courcelle Jan 2012

Uvrd Participation In Nucleotide Excision Repair Is Required For The Recovery Of Dna Synthesis Following Uv-Induced Damage In Escherichia Coli, Kelley Nicole Newton, Charmain T. Courcelle, Justin Courcelle

Biology Faculty Publications and Presentations

UvrD is a DNA helicase that participates in nucleotide excision repair and several replication-associated processes, including methyl-directed mismatch repair and recombination. UvrD is capable of displacing oligonucleotides from synthetic forked DNA structures in vitro and is essential for viability in the absence of Rep, a helicase associated with processing replication forks. These observations have led others to propose that UvrD may promote fork regression and facilitate resetting of the replication fork following arrest. However, the molecular activity of UvrD at replication forks in vivo has not been directly examined. In this study, we characterized the role UvrD has in processing …

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Open Justice: Concepts And Judicial Approaches, Emma Cunliffe Jan 2012

Open Justice: Concepts And Judicial Approaches, Emma Cunliffe

All Faculty Publications

Recent years have seen an increase in the number and scope of non-publication orders and other limits on open justice, an increase in the number of statutes that regulate or threaten open justice, and the articulation of an Australian constitutional principle (of institutional integrity) that has the potential to protect some aspects of open justice. The purposes and values of open justice are, however, rarely examined in a comprehensive or theoretically-informed manner. This article provides a theory of open justice which accounts for its heterogeneous nature. Australian judicial approaches to the substance, limits, and constitutional dimensions of open justice are …

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Rescuing The Dignitary Torts From The Constitution, Cristina Carmody Tilley Jan 2012

Rescuing The Dignitary Torts From The Constitution, Cristina Carmody Tilley

Faculty Publications

The rights of individuals to recover for dignitary torts has been withering for the past forty years, since the Supreme Court constitutionalized the state common law tort of defamation in New York Times v. Sullivan in 1964. The Court announced in that case that the First Amendment required it to impose high standards for individual defamation claims in order to protect robust speech. As that principle has taken hold, it has in effect squeezed the rights of individuals to recover for invasion of privacy and intentional infliction of emotional distress as well as defamation. Just last Term, the Court held …

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