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2012

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Can The Rule Of Law Survive Judicial Politics?, Charles G. Geyh Jan 2012

Can The Rule Of Law Survive Judicial Politics?, Charles G. Geyh

Articles by Maurer Faculty

No abstract provided.

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British Identity And The German Other, William F. Bertolette Jan 2012

British Identity And The German Other, William F. Bertolette

LSU Doctoral Dissertations

British identity evolved through conscious comparisons with foreigners as well as through the cultivation of indigenous social, economic and political institutions. The German other in nineteenth- and twentieth-century Britain, like the French other in previous centuries, provided a psychological path toward unity against a perceived common enemy. Because German stereotypes brought into sharp focus what the British believed themselves not to be, they provided a framework for defining Britishness beyond Britain’s own internal divisions of race, ethnicity, class, religion, gender and politics. Post-World War II devolution and European integration have since revived British internal national divisions. The image of innocuous …

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Law Student Knowledge Of Legal Interviewing: A Case Study Of Self-Evaluation Using Video Annotation, William Taggart Monroe Jan 2012

Law Student Knowledge Of Legal Interviewing: A Case Study Of Self-Evaluation Using Video Annotation, William Taggart Monroe

LSU Doctoral Dissertations

Video has long been used to support learner reflection in professional education programs in law, health, and education. Emerging video analysis tools offer learners the ability to highlight segments of video and focus their attention to specific moments or aspects of performance. These emerging tools afford opportunities for more systematic observation, analysis, and deliberate reflection on learner performance than was available previously. Expertise research has found that representative, rigorous tasks followed by immediate feedback and error correction constitute deliberate practice. Training environments that incorporate deliberate practice and emerging video annotation and analysis tools provide opportunities for learners pinpoint strengths and …

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The Impact Of An Informal Science Learning Environment On The Environmentally Responsible Behavior Of Adults: A Case Study, Kathryn Ann March Jan 2012

The Impact Of An Informal Science Learning Environment On The Environmentally Responsible Behavior Of Adults: A Case Study, Kathryn Ann March

LSU Doctoral Dissertations

Since environmental education’s emergence in America, the field has been primarily focused on increasing environmental awareness, attitudes, knowledge, skills, and behavior. Yet the nation’s overall level of environmental literacy, especially with regard to the performance of environmentally responsible behaviors, continues to be low (Coyle, 2005). Unlike school-based education programs, which only reach a segment of the population, informal sites have the potential to influence learners of many ages and diverse backgrounds (NRC, 2009). Informal science learning environments (ISLEs) have been shown to provide personally meaningful learning experiences and have the potential to impact environmentally responsible decisions and actions (Falk, 2005). …

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Functional Promiscuity Of The Cog0720 Family, Gabriela Phillips, Laura L. Grochowski, Shilah Bonnett, Huimin Xu, Marc Bailly, Crysten Haas-Blaby, Basma El Yacoubi, Dirk Iwata-Reuyl, Robert H. White, Valérie De Crécy-Lagard Jan 2012

Functional Promiscuity Of The Cog0720 Family, Gabriela Phillips, Laura L. Grochowski, Shilah Bonnett, Huimin Xu, Marc Bailly, Crysten Haas-Blaby, Basma El Yacoubi, Dirk Iwata-Reuyl, Robert H. White, Valérie De Crécy-Lagard

Chemistry Faculty Publications and Presentations

The biosynthesis of GTP derived metabolites such as tetrahydrofolate (THF), biopterin (BH4), and the modified tRNA nucleosides queuosine (Q) and archaeosine (G+) relies on several enzymes of the Tunnel-fold superfamily. A subset of these proteins include the 6-pyruvoyl-tetrahydropterin (PTPS-II), PTPS-III, and PTPS-I homologs, all members of the COG0720 family, that have been previously shown to transform 7,8-dihydroneopterin triphosphate (H2NTP) into different products. PTPS-II catalyzes the formation of 6-pyruvoyltetrahydropterin in the BH4 pathway. PTPS-III catalyzes the formation of 6-hydroxylmethyl-7,8-dihydropterin in the THF pathway. PTPS-I catalyzes the formation of 6-carboxy-5,6,7,8-tetrahydropterin in the Q pathway. Genes of these …

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Diversity Of Archaeosine Synthesis In Crenarchaeota, Gabriela Phillips, Manal A. Swairjo, Kirk W. Gaston, Marc Bailly, Patrick A. Limbach, Dirk Iwata-Reuyl, Valérie De Crécy-Lagard Jan 2012

Diversity Of Archaeosine Synthesis In Crenarchaeota, Gabriela Phillips, Manal A. Swairjo, Kirk W. Gaston, Marc Bailly, Patrick A. Limbach, Dirk Iwata-Reuyl, Valérie De Crécy-Lagard

Chemistry Faculty Publications and Presentations

Archaeosine (G+) is found at position 15 of many archaeal tRNAs. In Euryarchaeota, the G+ precursor, 7-cyano-7-deazaguanine (preQ0), is inserted into tRNA by tRNA-guanine transglycosylase (arcTGT) before conversion into G+ by ARChaeosine Synthase (ArcS). However, many Crenarchaeota known to harbor G+ lack ArcS homologs. Using comparative genomics approaches, two families that could functionally replace ArcS in these organisms were identified: 1) GAT-QueC, a two-domain family with an N-terminal glutamine amidotransferase class-II domain fused to a domain homologous to QueC, the enzyme that produces preQ0; 2) QueF-like, a family homologous to the bacterial enzyme catalyzing the reduction of preQ0 to 7- …

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Biodegradation And Distribution Of Crude Oil Sampled At Fourchon Beach, Kendall Ray Lemelle Jan 2012

Biodegradation And Distribution Of Crude Oil Sampled At Fourchon Beach, Kendall Ray Lemelle

LSU Master's Theses

This study was developed to determine the distribution and fate of crude oil spilled from the Deepwater Horizon oil rig starting on April 24, 2010. Crude oil from this spill contaminated portions of Fourchon Beach, Louisiana which was the study site for this thesis. Understanding the fate processes that affect crude oil once it’s released is important because the compounds that comprise oil can be hazardous to humans and wildlife. Composite and small surface residual ball (SSRB) samples were collected from the supratidal zone of Fourchon Beach and analyzed for PAHs and alkanes. Alkane concentrations decreased significantly over time, while …

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Guilty By Proxy: Expanding The Boundaries Of Responsibility In The Face Of Corporate Crime, Amy J. Sepinwall Jan 2012

Guilty By Proxy: Expanding The Boundaries Of Responsibility In The Face Of Corporate Crime, Amy J. Sepinwall

UC Law Journal

The BP oil spill and financial crisis share in common more than just profound tragedy and massive clean-up costs. In both cases, governmental commissions have revealed widespread wrongdoing by individuals and the entities for which they work. The public has demanded justice, yet the law enforcement response in both cases has been underwhelming. In particular, no criminal indictments have been sought for any of the corporations responsible for the Macondo oil-rig explosion or for the Wall Street banks involved in the financial meltdown. This governmental restraint reflects a deep-seated ambivalence about corporate criminal liability. Though scholars have been debating the …

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Copper-Cobalt Catalysts For Conversion Of Syngas To Ethanol And Higher Alcohols, Miranda Louise Smith Jan 2012

Copper-Cobalt Catalysts For Conversion Of Syngas To Ethanol And Higher Alcohols, Miranda Louise Smith

LSU Doctoral Dissertations

Higher alcohols produced by catalytic conversion of synthesis gas are potential octane enhancers for transportation fuels. Copper-cobalt catalysts have emerged as alternatives to the ethanol-selective, but expensive, rhodium-based ones. The reducibility of the catalyst and the CO adsorption mode are important factors in directing the selectivity of CO hydrogenation toward methanol, hydrocarbons, or higher alcohols. In this study, Cu/SiO2, Co/SiO2, and bimetallic CuCo/SiO2 catalysts, as well as their tin-promoted analogues, were synthesized and characterized by TPR, in situ XRD, in situ XANES, and in situ DRIFTS. Cobalt addition to Cu/SiO2 created an amorphous fraction of CuO that was more easily …

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A Survey Of Ballistosporic Phylloplane Yeasts In Baton Rouge, Louisiana, Sebastian Albu Jan 2012

A Survey Of Ballistosporic Phylloplane Yeasts In Baton Rouge, Louisiana, Sebastian Albu

LSU Master's Theses

A study documenting basidiomycete yeast biodiversity was conducted in Baton Rouge, Louisiana during 2010 and 2011. Using the spore-fall method, the leaf surfaces of seven ferns were sampled at biweekly intervals. Maximum likelihood phylogenetic analyses of the internal transcribed spacer (ITS) region and the D1/D2 domain of the large subunit (LSU) of nuclear ribosomal DNA were used to identify 463 isolates representing 81 species spanning 12 orders within six classes in Basidiomycota. Nearly 30 of these isolates appear to be species new to science. Data indicate fern leaf developmental stage has an effect on the number of yeasts present. A …

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Proton Dose Calculations In Homogeneous Media, John Wesley Chapman, Jr. Jan 2012

Proton Dose Calculations In Homogeneous Media, John Wesley Chapman, Jr.

LSU Master's Theses

In this study, a proton pencil beam dose calculation algorithm was developed for a parallel, monoenergetic beam incident on a homogeneous water phantom. Fermi-Eyges theory (Eyges 1948) was used to transport pencil beams, and the characteristic width of elastic scatter events was modeled using the differential Moliere scattering power (Gottschalk 2010). The incorporation of this scattering power formalism allowed our model to account for multiple Coulomb scattering, single scattering, plural scattering, and rigorously accounted for material effects on scatter. Nonelastic nuclear interactions were incorporated into an additional pencil beam model. The attenuation of primary fluence due to nuclear events was …

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A Seminaphthofluorescein-Based Fluorescent Chemodosimeter For The Highly Selective Detection Of Cysteine, Xiaofeng Yang, Yixing Guo, Robert M. Strongin Jan 2012

A Seminaphthofluorescein-Based Fluorescent Chemodosimeter For The Highly Selective Detection Of Cysteine, Xiaofeng Yang, Yixing Guo, Robert M. Strongin

Chemistry Faculty Publications and Presentations

A fluorescent chemodosimeter for cysteine detection was developed based on a tandem conjugate addition and intramolecular cyclization reaction. The method exhibited an excellent selectivity for cysteine over other biothiols such as homocysteine and glutathione.

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Where The Good Times Roll: New Orleans As A Destination For Sports Event Tourism, Kristen E. Chighizola Jan 2012

Where The Good Times Roll: New Orleans As A Destination For Sports Event Tourism, Kristen E. Chighizola

LSU Master's Theses

Over the past several decades, sports event tourism has been a growing area of research for scholars in the fields of sport administration, strategic communications, destination marketing and tourism. The city of New Orleans is one of the most popular tourist destinations in the United States, with its various entertainment, sports, and cultural events. Over the past three decades, New Orleans has hosted over 30 major sports events and will host several more major events including the BCS National Championship, NCAA Men’s and Women’s Final Four, and the Super Bowl through February 2013. This case study shows several primary reasons …

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Tainted Love: An Increasingly Odd Arbitral Infatuation In Derogation Of Sound And Consistent Jurisprudence, Jeffrey W. Stempel Jan 2012

Tainted Love: An Increasingly Odd Arbitral Infatuation In Derogation Of Sound And Consistent Jurisprudence, Jeffrey W. Stempel

Scholarly Works

No abstract provided.

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Mandatory Binding Arbitration Clauses Prevent Consumers From Presenting Procedurally Difficult Claims, Jean R. Sternlight Jan 2012

Mandatory Binding Arbitration Clauses Prevent Consumers From Presenting Procedurally Difficult Claims, Jean R. Sternlight

Scholarly Works

The longstanding debate over the benefits and detriments of mandatory arbitration in the consumer context has often focused on the wrong issue. Although we have now argued for almost twenty years over whether it is appropriate to require consumers to arbitrate rather than litigate claims against providers of products and services, too often commentators have asked whether consumers win or lose when they bring claims in arbitration, rather than whether consumers’ claims are suppressed or eliminated altogether as a result of companies’ use of mandatory arbitration clauses. The United States Supreme Court’s recent decision in AT&T Mobility v. Concepcion brings …

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Photojournalism As Photonationalism, Jeremy Kreusch Jan 2012

Photojournalism As Photonationalism, Jeremy Kreusch

LSU Master's Theses

The public saw the wars in Iraq (2003 – 2012) and Afghanistan (2001 – present) through the lens of reverence and sentimentality toward the soldier. This was manifest not simply in the catchy “support our troops” rhetoric, but in the one-sided depiction of the experience of battle by the photojournalists who worked for the major news organizations in the Western world. From the emotionally bloated to the nationalistic, the photographs taken by “embedded” photojournalists, whether the result of heavy-handed censorship or merely political influence, presented a consistent image: the soldier as a selfless victim of his or her own heroism. …

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"Condoms And Candy": Pro-Choice Students On Campus, Jordan Rebecca Kea Jan 2012

"Condoms And Candy": Pro-Choice Students On Campus, Jordan Rebecca Kea

LSU Master's Theses

This thesis seeks to understand the dynamics of a feminist student organization within the context of a college campus in southern Louisiana. Through a methodology of participant observation, interviews, spot observations and archival research I examine how this pro-choice organization navigates campus public space. This project focuses on aspects of collaboration or collective action within a network of organizations, the participation of members, and the discursive processes of storytelling and audience effects. This collaborative ethnography also investigates how cross-sex interactions mediate topics of motherhood, abortion, and sexuality.  

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Multiscale Viscoplastic-Viscodamage Analysis Of Shape Memory Polymer Fibers With Application To Self Healing Smart Materials, Amir Shojaei Jan 2012

Multiscale Viscoplastic-Viscodamage Analysis Of Shape Memory Polymer Fibers With Application To Self Healing Smart Materials, Amir Shojaei

LSU Doctoral Dissertations

Self-healing smart material systems have been introduced into the research arena and they have already been deployed into industrial applications. The Close-Then-Heal (CTH) healing mechanism for polymeric self-healing systems is addressed herein and then a new generation of Shape Memory Polymer (SMP) based self-healing system is proposed in this work. This system incorporates SMP fibers to close the cracks while the embedded Thermoplastic Particles (TPs) are diffused into the crack surfaces upon heating and provide a molecular level of healing. The SMP fiber manufacturing procedure is briefly addressed in this work in which the bobbin of SMP fibers are heat …

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Blood-Brain Barrier Abnormalities Caused By Hiv-1 Gp120: Mechanistic And Therapeutic Implications., Jean-Pierre Louboutin, David S Strayer Jan 2012

Blood-Brain Barrier Abnormalities Caused By Hiv-1 Gp120: Mechanistic And Therapeutic Implications., Jean-Pierre Louboutin, David S Strayer

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

The blood-brain barrier (BBB) is compromised in many systemic and CNS diseases, including HIV-1 infection of the brain. We studied BBB disruption caused by HIV-1 envelope glycoprotein 120 (gp120) as a model. Exposure to gp120, whether acute [by direct intra-caudate-putamen (CP) injection] or chronic [using SV(gp120), an experimental model of ongoing production of gp120] disrupted the BBB, and led to leakage of vascular contents. Gp120 was directly toxic to brain endothelial cells. Abnormalities of the BBB reflect the activity of matrix metalloproteinases (MMPs). These target laminin and attack the tight junctions between endothelial cells and BBB basal laminae. MMP-2 and …

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Cop9 Signalosome Component Jab1/Csn5 Is Necessary For T Cell Signaling Through Lfa-1 And Hiv-1 Replication., Shigemi M Kinoshita, Peter O Krutzik, Garry P Nolan Jan 2012

Cop9 Signalosome Component Jab1/Csn5 Is Necessary For T Cell Signaling Through Lfa-1 And Hiv-1 Replication., Shigemi M Kinoshita, Peter O Krutzik, Garry P Nolan

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

To determine critical host factors involved in HIV-1 replication, a dominant effector genetics approach was developed to reveal signaling pathways on which HIV-1 depends for replication. A large library of short peptide aptamers was expressed via retroviral delivery in T cells. Peptides that interfered with T cell activation-dependent processes that might support HIV-1 replication were identified. One of the selected peptides altered signaling, lead to a difference in T cell activation status, and inhibited HIV-1 replication. The target of the peptide was JAB1/CSN5, a component of the signalosome complex. JAB1 expression overcame the inhibition of HIV-1 replication in the presence …

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Knockdown Of Ki-67 By Dicer-Substrate Small Interfering Rna Sensitizes Bladder Cancer Cells To Curcumin-Induced Tumor Inhibition., Sivakamasundari Pichu, Swapna Krishnamoorthy, Andrei Shishkov, Bi Zhang, Peter Mccue, Biddanda C Ponnappa Jan 2012

Knockdown Of Ki-67 By Dicer-Substrate Small Interfering Rna Sensitizes Bladder Cancer Cells To Curcumin-Induced Tumor Inhibition., Sivakamasundari Pichu, Swapna Krishnamoorthy, Andrei Shishkov, Bi Zhang, Peter Mccue, Biddanda C Ponnappa

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

Transitional cell carcinoma (TCC) of the urinary bladder is the most common cancer of the urinary tract. Most of the TCC cases are of the superficial type and are treated with transurethral resection (TUR). However, the recurrence rate is high and the current treatments have the drawback of inducing strong systemic toxicity or cause painful cystitis. Therefore, it would be of therapeutic value to develop novel concepts and identify novel drugs for the treatment of bladder cancer. Ki-67 is a large nucleolar phosphoprotein whose expression is tightly linked to cell proliferation, and curcumin, a phytochemical derived from the rhizome Curcuma …

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Decorin Protein Core Affects The Global Gene Expression Profile Of The Tumor Microenvironment In A Triple-Negative Orthotopic Breast Carcinoma Xenograft Model., Simone Buraschi, Thomas Neill, Rick T Owens, Leonardo A Iniguez, George Purkins, Rajanikanth Vadigepalli, Barry Evans, Liliana Schaefer, Stephen C Peiper, Zi-Xuan Wang, Renato V Iozzo Jan 2012

Decorin Protein Core Affects The Global Gene Expression Profile Of The Tumor Microenvironment In A Triple-Negative Orthotopic Breast Carcinoma Xenograft Model., Simone Buraschi, Thomas Neill, Rick T Owens, Leonardo A Iniguez, George Purkins, Rajanikanth Vadigepalli, Barry Evans, Liliana Schaefer, Stephen C Peiper, Zi-Xuan Wang, Renato V Iozzo

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

Decorin, a member of the small leucine-rich proteoglycan gene family, exists and functions wholly within the tumor microenvironment to suppress tumorigenesis by directly targeting and antagonizing multiple receptor tyrosine kinases, such as the EGFR and Met. This leads to potent and sustained signal attenuation, growth arrest, and angiostasis. We thus sought to evaluate the tumoricidal benefits of systemic decorin on a triple-negative orthotopic breast carcinoma xenograft model. To this end, we employed a novel high-density mixed expression array capable of differentiating and simultaneously measuring gene signatures of both Mus musculus (stromal) and Homo sapiens (epithelial) tissue origins. We found that …

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Finding A Forum For North Korea, Morse Tan Jan 2012

Finding A Forum For North Korea, Morse Tan

Faculty Articles, Papers, and Other Scholarship

North Korea’s gross and systematic violations of human rights violate international law, including contravention of the treaties that North Korea itself has ratified (i.e., the International Covenant on Civil and Political Rights; the International Covenant on Economic, Social and Cultural Rights; the Convention on the Rights of the Child; and the Convention on the Elimination of All Forms of Discrimination Against Women). Nevertheless, a surprising dearth of legal scholarship exists with respect to arguably the worst human rights situation in the world. This Article analyzes possible tribunals to provide a measure of redress for the victims of these heinous violations …

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Activist Cartoons Without Borders: The Political Cartoons Of Brazilian Artist Carlos Latuff, Orayb Najjar Jan 2012

Activist Cartoons Without Borders: The Political Cartoons Of Brazilian Artist Carlos Latuff, Orayb Najjar

Faculty Articles, Papers, and Other Scholarship

Brazilian cartoonist Carlos Latuff has been described by Allers in Menassat as `a one-man cartoon wrecking-ball when he hits the ink.' In the last few years of penning sharp cartoons, he `has been alternatively praised and vilified in the press for his depictions of suffering' in places like the Palestinian territories, Iraq, and the slums of Latin America. In this study, I use Latuff's work to illustrate how the artist has formed a global identity based on political affiliation, rather than national origin. I show how the `affordances' of the Internet, namely, the ability of non-mainstream individuals and groups to …

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Commercial Burmanization: Two Adverts By Burmah Oil Company In Postcolonial Burma, Tharaphi Than Jan 2012

Commercial Burmanization: Two Adverts By Burmah Oil Company In Postcolonial Burma, Tharaphi Than

Faculty Articles, Papers, and Other Scholarship

Burma gained independence on 4 January 1948. Immediately after independence, Burmese media launched a campaign to ‘resurrect’ the country’s ‘lost’ culture. Bamakhit newspaper argued that the building of a new nation must be based upon customs, religion, and traditions that were indigenous.1 The new Burma needed to be built upon the foundations of Buddhism and cultures unique to the country. Indeed Burma not only had to recover its own customs, but also needed to distinguish, with the aim of discarding, cultures that were foreign to the country. In this article, I discuss how the (British-owned) Burmah Oil Company (BOC) used …

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The Spatial-Temporal Dynamics Of China’S Changing Urban Hierarchy (1950–2005), Xuwei Chen, Richard Greene Jan 2012

The Spatial-Temporal Dynamics Of China’S Changing Urban Hierarchy (1950–2005), Xuwei Chen, Richard Greene

Faculty Articles, Papers, and Other Scholarship

This paper examines the dynamic spatial and temporal patterns of China’s urban hierarchy from 1950 to 2005. We limit the study to mainland China’s 137 urban agglomerations of 750,000 or more population as of 2005. The paper improves upon a classic approach to measuring shifting ranks within an urban hierarchy by applying advanced spatial analysis techniques. We use a Getis-Ord G∗ i , a space-timeMoran scatter plot, and dynamic LISA paths to examine the regional difference and change for these urban agglomerations. Our study revealed a north-south divide in the changing urban hierarchy of China after 1990. The analysis demonstrated …

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Library Instruction As Advocacy, Jo Bell Whitlatch Jan 2012

Library Instruction As Advocacy, Jo Bell Whitlatch

Faculty Research, Scholarly, and Creative Activity

No abstract provided.

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Volunteer Based Organizations: Bridging The Gap Between Political Efficacy And Civic Engagement, Kristin Nicole Marks Jan 2012

Volunteer Based Organizations: Bridging The Gap Between Political Efficacy And Civic Engagement, Kristin Nicole Marks

LSU Master's Theses

With the declining participation in civic engagement behaviors such as voting, people are turning to other means to demonstrate civic participation. This study examined the role of volunteering as a means to establish civic engagement. Because of this civic participation behavioral shift, the relationship between civic engagement and the communication tactics used by volunteer based organizations was investigated. This study investigated the relationship between civic engagement and political efficacy. Additionally, this study examined the interplay between organizational characteristics (trust, control mutuality, exchange relationship, and commitment) and civic engagement. Lastly, perceptions of new and traditional methods of communications to encourage civic …

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Ayahuasca Characterization, Metabolism In Humans, And Relevance To Endogenous N,N-Dimethyltryptamines, Ethan Hamilton Mcilhenny Jan 2012

Ayahuasca Characterization, Metabolism In Humans, And Relevance To Endogenous N,N-Dimethyltryptamines, Ethan Hamilton Mcilhenny

LSU Doctoral Dissertations

Ayahuasca denotes an Amazonian psychotropic plant tea obtained from Banisteriopsis caapi, which contains beta-carboline (b-carboline) alkaloids, chiefly harmine, harmaline and tetrahydroharmine. The tea usually incorporates the leaves of Psychotria viridis, which are rich in N,N-dimethyltryptamine (DMT), a psychoactive 5-HT2A agonist. The beta-carbolines reversibly inhibit monoamine-oxidase (MAO), effectively preventing oxidative deamination of the orally inactive DMT and allowing its absorption and access to the central nervous system. Despite increased use of the tea worldwide, easy to perform and validated methods for its characterization do not exist and the metabolism and excretion of DMT and the b-carbolines has not been studied systematically …

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Shear Strength Evaluation Of An Erosional Soil System At Fourchon Beach, Jacques Pierre Boudreaux Jan 2012

Shear Strength Evaluation Of An Erosional Soil System At Fourchon Beach, Jacques Pierre Boudreaux

LSU Master's Theses

South Louisiana is vanishing. Subsidence due to relative sea level rise with erosion of weak wetland soils together produce devastating rates of land loss for this area. It is believed that high rates of erosion are due to weak strength properties of fine-grained sediments in the beaches, marshes, and other wetlands in coastal Louisiana. Wave action is known to initiate the movement of weak coastal soils in a manner that is related to the difference between the shear stresses applied by waves and the critical shear strength of erosional sediments. Direct shear tests were performed on samples obtained from the …

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