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Phytoremediation Of A High Phosphorus Soil By Summer And Winter Hay Harvest, Veronica A. Ryan Jan 2006

Phytoremediation Of A High Phosphorus Soil By Summer And Winter Hay Harvest, Veronica A. Ryan

LSU Master's Theses

Phosphorus (P) loading into surface water from runoff and subsurface flow leaving soils subjected to long-term applications of poultry litter (PL) will degrade water quality. A practical way to reduce such loading is to remove soil P through plant uptake and harvest removal. The primary field study presented here examined the effectiveness of hay harvest utilizing a double-cropped system - perennial warm-season forage grass, common bermudagrass (CB; Cynodon dactylon (L.) Pers.), overseeded with annual ryegrass (ARG; Lolium multiflorum Lam.), a cool-season forage, in reducing soil P from a Ruston fine-sandy loam impacted by PL amendments. A secondary field study similarly …

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An Analysis Of The Relationship Between City Typology, Interactivity And Advertising Message Strategies Of American Municipal Web Sites, Jeremy John Starr Jan 2006

An Analysis Of The Relationship Between City Typology, Interactivity And Advertising Message Strategies Of American Municipal Web Sites, Jeremy John Starr

LSU Master's Theses

This study became to first to scientifically explore the relationship between city typology and the use of advertising message strategy and interactivity within municipal web sites. The study used Taylor’s six-segment strategy wheel to analyze message strategies and previous scales of interactivity to analyze structural interactivity. Medium-size cities and cities within the South and West geographic regions more likely used sensory strategies within their web sites. Cities with racially diverse populations more likely used sensory strategies within their web sites as well. Large cities and central cities, both with large populations, used the most interactive strategies within their sites compared …

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Minority Recruitment Efforts Aimed At Increasing Student Diversity At Historically Black Public Colleges And Universities And Predominantly White Public Institutions, Nia Francis Mason Jan 2006

Minority Recruitment Efforts Aimed At Increasing Student Diversity At Historically Black Public Colleges And Universities And Predominantly White Public Institutions, Nia Francis Mason

LSU Master's Theses

Minority and other race recruitment have become a significant part of general recruitment efforts at many predominantly white institutions (PWIs) and historically black colleges and universities (HBCUs). Despite increased efforts, some universities have not been successful at increasing diversity on campus. This study relies on the use of in-depth interviews to document, describe and understand the similar and differing characteristics of minority and other race recruitment tactics being used at PWIs and HBCUs. The researcher conducted interviews at four public institutions of higher education; two of which are HBCUs, and two of which are PWIs. The researcher also sought to …

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Underground In The Confederate Capital: Punk Subculture In Richmond, Virginia, Christopher J. Dalbom Jan 2006

Underground In The Confederate Capital: Punk Subculture In Richmond, Virginia, Christopher J. Dalbom

LSU Master's Theses

The intent of this thesis is to investigate the role of the punk subculture in Richmond, Virginia from an ethnographic perspective. Through participant observation and open-ended interviews, it seeks an understanding of the role of the subculture in the lives of those who embrace it and how it shapes their experiences in Richmond. In doing so, it hopes to fill a gap in music geography and in the study of the punk subculture. According to much of the literature, punk died decades ago, but for those who claim punk allegiance in Richmond today, it is very alive and real. This …

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Resilient Optical Multicasting Utilizing Cycles In Wdm Optical Networks, Abhishek Satyedranath Jan 2006

Resilient Optical Multicasting Utilizing Cycles In Wdm Optical Networks, Abhishek Satyedranath

LSU Master's Theses

High capacity telecommunications of today is possible only because of the presence of optical networks. At the heart of an optical network is an optical fiber whose data carrying capabilities are unparalleled. Multicasting is a form of communication in wavelength division multiplexed (WDM) networks that involves one source and multiple destinations. Light trees, which employ light splitting at various nodes, are used to deliver data to multiple destinations. A fiber cut has been estimated to occur, on an average, once every four days by TEN, a pan-European carrier network. This thesis presents algorithms to make multicast sessions survivable against component …

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Evaluation Of An Amperometric Biosensor For The Detection Of Escherichia Coli O157:H7, Danyelle Denise Small Jan 2006

Evaluation Of An Amperometric Biosensor For The Detection Of Escherichia Coli O157:H7, Danyelle Denise Small

LSU Master's Theses

Escherichia coli O157:H7 contamination is a major hazard in the water supply, causing outbreaks of disease. Conventional methods of E. coli O157:H7 detection usually takes 1-2 days and require hands-on preparation. There is a need to develop a rapid, inexpensive means of detecting the organism. The amperometric biosensor technology has achieved success in the area of metabolite detection. In this study, a bench scale amperometric biosensor was investigated to rapidly detect Escherichia coli O157:H7. The amperometric biosensor consisted of a power source, Clark electrode, autoranging picoammeter, and fabricated polyvinyl chloride (PVC) outer insert with nitrocellulose membrane and attached horseradish peroxidase …

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Unbalanced Media Coverage And The 2004 Presidential Election: The New York Times Vs. The Washington Times, Jimmie E. Cummings, Jr. Jan 2006

Unbalanced Media Coverage And The 2004 Presidential Election: The New York Times Vs. The Washington Times, Jimmie E. Cummings, Jr.

LSU Master's Theses

The purpose of this study was to find out if either The New York Times or The Washington Times participated in unbalanced media coverage during the last two weeks of the 2004 Presidential Election. Through content analysis paragraph tone was used to evaluate news stories, columns, and editorials as positive, negative or neutral from a composite week sample. Scholars, politicians, the public as well as journalists have long argued about the existence or not of media bias and whether it is in support of liberal or conservative politics. This study was not an attempt to pick a side in that …

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Measuring Player Perceptions Of Advertising In Online Games, Ben Lewis Jan 2006

Measuring Player Perceptions Of Advertising In Online Games, Ben Lewis

LSU Master's Theses

An experiment with 100 participants aged 18-24 was conducted to measure the effects of advertising in an online role-playing computer game on perceived interactivity and other aspects of gameplay experience. Results from a post-test questionnaire revealed insight into players' attitudes toward advertising in video game environments, and reflected varying levels of advertising awareness and recall, message recognition, and factors in purchasing habits. Results suggested that while advertising in online games can sometimes trigger high advertising awareness rates, it can also reduce a game's perceived sense of realism and genuinely annoy players if not appropriately coordinated with the game environment. Whereas …

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Lock'em Up And Throw Away The Key: Racial Attitudes And The Structural Determinants Of Support For Crime Policy Among White Americans, Amanda J. Abraham Jan 2006

Lock'em Up And Throw Away The Key: Racial Attitudes And The Structural Determinants Of Support For Crime Policy Among White Americans, Amanda J. Abraham

LSU Doctoral Dissertations

This study investigates support for the death penalty and federal crime spending among white Americans. Data from the American National Election Studies (ANES) series (1992-2000) are matched with census tract level indicators of demographic and community characteristics from the 1990 and 2000 Census Bureau Summary File Tape 3A and county level crime data supplied by the Federal Bureau of Investigation�s Uniform Crime Reports (UCR). Ordered logistic regression is used to investigate five general research questions: (1) Are racial attitudes the most salient individual level predictors of support for crime policy among whites as suggested by prior research? (2) Are whites� …

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Towards A Generalized Team Task Complexity Model, Ashok Darisipudi Jan 2006

Towards A Generalized Team Task Complexity Model, Ashok Darisipudi

LSU Doctoral Dissertations

The objective of this research was to develop and validate a generalized team task-complexity model and framework by drawing on the literature from various team and task factors grouped into three task-dimensions, which compose task-complexity space and how these affect the task-performance. A number of task typologies have been presented in the teams' literature to better define and understand the critical role of the tasks and the associated team processes. In addition, most of the research work has defined team measures as highly abstract concepts not capable of providing the quantitative comparison of team performances from various domains. This research …

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Effective Inter-Organizational Information And Communication Technology Adoption In Business-To-Business Customer Interface, Sanna Maria Kallioranta Jan 2006

Effective Inter-Organizational Information And Communication Technology Adoption In Business-To-Business Customer Interface, Sanna Maria Kallioranta

LSU Doctoral Dissertations

Past research has found that 80-90 percent of IT investments do not meet corporate performance objectives, primarily due to non-technical reasons such as human and organizational aspects. When Inter-organizational Information and Communication Technology (IICT) implementation is properly managed IICT can help manage the flow of goods, services, and information between business partners in the supplier-customer dyad, thus reducing transaction costs along the entire value chain. Using the underlying Resource-Based View theoretical foundation, this research approaches effective IICT implementation capability as a holistic organizational capability that extends beyond tangible IT resources. This research investigates business outcomes of IICT adoption in the …

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Compositional Effects On Gas-Oil Interfacial Tension And Miscibility At Reservoir Conditions, Daryl Sean Sequeira Jan 2006

Compositional Effects On Gas-Oil Interfacial Tension And Miscibility At Reservoir Conditions, Daryl Sean Sequeira

LSU Master's Theses

Minimum miscibility pressure (MMP) is an important optimization parameter for an enhanced oil recovery process involving Carbon Dioxide or hydrocarbon gas injection. Therefore an accurate experimental measurement is required to determine the MMP. The MMP for a gas-oil system is directly related to the interfacial tension between the injected gas and the reservoir crude oil. When CO2 gas contacts the reservoir oil at reservoir temperature, the interfacial tension between the fluid-fluid phases reduces as the miscibility is approached and the interface between the fluid-fluid phases eventually disappears at miscibility i.e. the interfacial tension becomes zero. Hence, a pressure condition of …

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Uncovering Bacterial Diversity On And Below The Surface Of A Hyper-Arid Environment, The Atacama Desert, Chile, Danielle Rene Bagaley Jan 2006

Uncovering Bacterial Diversity On And Below The Surface Of A Hyper-Arid Environment, The Atacama Desert, Chile, Danielle Rene Bagaley

LSU Master's Theses

The Atacama Desert in Chile extends from latitudes 17º S to 28º S between longitudes 69º W and 71º W. It has been reported that surface soils in the hyper-arid region contain low numbers of culturable heterotrophic bacteria. These soils are considered Mars-like and offer an ideal setting to investigate the application of life detection systems. Thirty-three surface sites were sampled to examine further the extent of the hyper-arid region. We also excavated four soil pits, 40 cm to 90 cm in depth, to explore subsurface microbial communities. One pit was dug in a southern region of the desert compared …

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Inhibition Of Hormone Dependent And Independent Breast Cancer Cells By Oyster(Crassostrea Virginica) Ceramide, Madhavi Chintalapati Jan 2006

Inhibition Of Hormone Dependent And Independent Breast Cancer Cells By Oyster(Crassostrea Virginica) Ceramide, Madhavi Chintalapati

LSU Master's Theses

The purpose of this research was to investigate the in vitro and in vivo anti-angiogenic properties of ceramide isolated from oyster (Crassostrea virginica). Ceramide was isolated from oyster by silicic acid chromatography, purified by alkaline hydrolysis, and analyzed by electrospray ionization mass spectrometry (ESI-MS). In vitro, the activity of ceramide on human hormone-dependent (MCF-7) and hormone-independent (MDA-MB-435s) breast cancer cells was evaluated for cell viability and proliferation, VEGF-induced cell migration and invasion, apoptosis, and autophagy. The activity of ceramide was also evaluated for VEGF-induced human umbilical vein endothelial cells (HUVEC) tube formation. The protein levels of vascular endothelial growth factor …

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The Other Side Of The Tracks: Railroads, Race, And The Performance Of Unity In Nineteenth-Century American Entertainment, Elissa Sartwell Jan 2006

The Other Side Of The Tracks: Railroads, Race, And The Performance Of Unity In Nineteenth-Century American Entertainment, Elissa Sartwell

LSU Doctoral Dissertations

Nineteenth-century Americans took great pride in the completion of the first transcontinental railroad in 1869. This pride was not solely grounded in the knowledge that a grand, technological feat had been accomplished. When placed in its historical context, the celebration surrounding the completion of the railroad suggests a clear and visible statement of unity following a bitter and divisive civil war. The transcontinental railroad of 1869 undeniably unified the States. But any railroad simultaneously unites and divides, for while the tracks serve to link distant locations, they also produce a literal and metaphorical division in the communities through which they …

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Retention And Transport Of Arsenic In Soils, Hua Zhang Jan 2006

Retention And Transport Of Arsenic In Soils, Hua Zhang

LSU Doctoral Dissertations

Arsenic transport in soils and aquifers is highly dependent on the adsorption-desorption reactions in the solid phase. Results from our kinetic batch experiments indicated that adsorption of arsenate [As(V)] was highly nonlinear and strongly kinetic. Desorption of As(V) were hysteretic in nature and a significant amount of As(V) was irreversibly adsorbed on all soils. Results from column experiments indicated strong As(V) retardation followed by slow release or extensive tailing of the breakthrough curves (BTCs). Sharp decrease in As(V) concentration during flow interruption verified the extensive non-equilibrium condition which was likely due to the dominance of kinetic retention processes. We evaluated …

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Cultivar, Juice Extraction, Ultra Violet Irradiation And Storage Influence The Stilbene Content Of Muscadine Grapes (Vitis Rotundifolia Michx.), Mark Rene' Leblanc Jan 2006

Cultivar, Juice Extraction, Ultra Violet Irradiation And Storage Influence The Stilbene Content Of Muscadine Grapes (Vitis Rotundifolia Michx.), Mark Rene' Leblanc

LSU Doctoral Dissertations

Stilbene concentration was analyzed in juice and tissue of muscadine grape (Vitis rotundifolia Michx.) and bunch grape (Vitis labrusca L.) from fresh fruit, after processing and after postharvest treatments. Five filter types were evaluated for percent resveratrol recovery when filtering standard and spiked juice samples in preparation for HPLC analysis. Only two (polycarbonate and Anopore) of the five filter types had more than 90 percent recovery. Polycarbonate was chosen for sample preparation since it was more durable during handling. Eight muscadine grape cultivars and three bunch grape cultivars were evaluated. Skin tissue had approximately 100 times higher stilbene concentration than …

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The Impact Of The Louisiana Master Gardener Program On The Perceived And Actual Horticultural Knowlede Levels Of Program Participants, Bobby Hugh Fletcher Jan 2006

The Impact Of The Louisiana Master Gardener Program On The Perceived And Actual Horticultural Knowlede Levels Of Program Participants, Bobby Hugh Fletcher

LSU Doctoral Dissertations

The primary purpose of this study was to determine the impact of participation in the master gardener program on: a. Self-perceived knowledge in selected horticultural areas; b. Knowledge in selected areas of horticulture as measured by a researcher designed test; and c. Use of best management practices (BMPs) in horticultural practice. Gardening is a favorite pastime in the United States that has therapeutic and rewarding benefits. Currently, there is a great demand for accurate gardening (horticultural) information from green industry users such as gardeners from all backgrounds and areas. There is a need for research-based horticultural information to be provided …

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How Voice Affects Perceptions Of Relationship Wih Adults, Ownership, And Engagement In Youth, Melissa D. Wade Cater Jan 2006

How Voice Affects Perceptions Of Relationship Wih Adults, Ownership, And Engagement In Youth, Melissa D. Wade Cater

LSU Doctoral Dissertations

The purpose of this study was to determine if youth voice affects the ownership and engagement experienced by youth in a county 4-H program. For the treatment group, a youth-led approach was used where "having a voice" included youth sharing decision-making power with the adults in the program. The comparison group consisted of 4-H members in three other clubs in the county. These youth experienced an adult-led approach where the decisions about the club programming were made strictly by the adults. The Youth Voice Survey instrument was developed to assess youths' perceptions of ownership, engagement, and relationship with adults at …

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Viewing Novels, Reading Films: Stanley Kubrick And The Art Of Adaptation As Interpretation, Charles Bane Jan 2006

Viewing Novels, Reading Films: Stanley Kubrick And The Art Of Adaptation As Interpretation, Charles Bane

LSU Doctoral Dissertations

Greg Jenkins has observed that adaptation "is a presence that is woven into the very fabric of film culture." Although this statement is true, no definitive theory of adaptation exists. Critics and scholars ponder adaptation, yet cannot seem to agree on what makes an adaptation a success or a failure. The problem of adaptation stems from many sources. What, if anything, does a film owe the novel on which it is based? How, if possible, does a film remain faithful to its source? Is a film a version of a story or its own autonomous work of art? Who is …

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Effective Bootstrapping Of Peer-To Peer Networks Over Mobile Ad-Hoc Networks, Wei Ding Jan 2006

Effective Bootstrapping Of Peer-To Peer Networks Over Mobile Ad-Hoc Networks, Wei Ding

LSU Doctoral Dissertations

Mobile Ad-hoc Networks (MANETs) and Peer-to-Peer (P2P) networks are vigorous, revolutionary communication technologies in the 21st century. They lead the trend of decentralization. Decentralization will ultimately win clients over client/server model, because it gives ordinary network users more control, and stimulates their active participation. It is a determinant factor in shaping the future of networking. MANETs and P2P networks are very similar in nature. Both are dynamic, distributed. Both use multi-hop broadcast or multicast as major pattern of traffic. Both set up connection by self-organizing and maintain connection by self-healing. Embodying the slogan "networking without networks," both abandoned traditional client/server …

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Gamete And Cell Technologies For Use In Biological Resource Banking, Liesl Nel-Themaat Jan 2006

Gamete And Cell Technologies For Use In Biological Resource Banking, Liesl Nel-Themaat

LSU Doctoral Dissertations

Biological resource banking is becoming important for endangered species conservation. A series of experiments were conducted to address issues concerning collection and utilization of biomaterials from Gulf Coast Native (GCN) sheep (model species) (Ovis aries) and Eland antelope (Taurotragus oryx). In the first experiment, two ejaculates were collected 10 minutes apart from each of five rams three times a week for three weeks to maximize output and minimize handling time. Semen volume, concentration and total number of spermatozoa were significantly greater in first ejaculates, whereas pre-cooled, cooled and post-thaw motility, as well as sperm survival, were greater in second ejaculates. …

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Consumer Expectation Formation In Health Care Services: A Psycho-Social Model, Kenneth Randall Russ Jan 2006

Consumer Expectation Formation In Health Care Services: A Psycho-Social Model, Kenneth Randall Russ

LSU Doctoral Dissertations

A psycho-social model of consumer expectation formation in a health care services context was developed and tested. A field study involving obstetrical patients (n=171) at a large women’s specialty hospital in the southeast was conducted. Initial support for the structural model which posits that consumer expectations in health care services are multidimensional involving role, process, outcome, and service quality was found. Furthermore, the research identified that the uncertainty of a health service encounter may cause certain consumer segments to choose coping strategies and expectation processes based on their locus of control orientation from along a continuum ranging from “approach-active” to …

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The Influence Of A School-Based Substance Abuse Prevention Program In Reducing Smoking Among Sixth Grade African American Students In Louisiana, Alan J. Nichols Jan 2006

The Influence Of A School-Based Substance Abuse Prevention Program In Reducing Smoking Among Sixth Grade African American Students In Louisiana, Alan J. Nichols

LSU Doctoral Dissertations

Youth tobacco smoking is one of the major public health problems of this society. Although, by some reports, adult cigarette smoking has been declining, teen smoking rates continue to remain unacceptably high. Current data indicates that smoking rates among minority youth which had declined in the past few years are beginning to rise again. The current increase in teen smoking and subsequent health dangers associated with smoking demonstrates a need for more effective, empirically based youth smoking prevention strategies. The purpose of this study was to examine the influence of a substance abuse prevention program in reducing smoking among sixth …

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Aerobic Degradation Assessment For The Fungicide Bas 505 Using Batch And Intact Soil Core Methodologies, Jason Allan Mcdonald Jan 2006

Aerobic Degradation Assessment For The Fungicide Bas 505 Using Batch And Intact Soil Core Methodologies, Jason Allan Mcdonald

LSU Doctoral Dissertations

Although registration protocol stipulates that pesticide degradation be quantified using homogeneous soil, research suggests that degradation in intact soil may give results more consistent with field data. This project examined degradation of the turf and cereal fungicide BAS 505 [N-methyl-(E)-2-methoxyamino-2-(2-((2,5-dimethylphenoxy)methyl)phenyl) acetamide]. Yearlong and four-month-long incubation studies compared degradation rates in intact cores and homogeneous (batch) samples of Ruston fine sandy loam (fine-loamy, siliceous, thermic Typic Paleudults) soil. Recovery of BAS 505 in methanol extracts was measured 12 times over the 360 d incubation by HPLC-LSC analysis, and declined to 36 % and 57 % of the amount applied in cores …

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Factors Which Influence Client Satisfaction With The Services Of Community Development Corporations, Shanta Harrison-Proctor Jan 2006

Factors Which Influence Client Satisfaction With The Services Of Community Development Corporations, Shanta Harrison-Proctor

LSU Doctoral Dissertations

The primary purpose of this study was to determine factors which influence client satisfaction with the services of community development corporations (CDCs) in metropolitan regions of Louisiana. The CDCs were evaluated based on five specific criteria: housing, social services, workforce development, educational enrichment, and community outreach. The objectives addressed were: description of clients, levels of client satisfaction, and relationships between satisfaction and selected demographic characteristics. The instrument used in this study was a researcher-designed survey questionnaire used to collect client information. It was comprised of two sections – demographics and client satisfaction. The target population for this study was adult …

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Use Of Polyhydroxyalkanoates For Denitrification In Recirculating Aquaculture Systems, Maria Teresa Gutierrez-Wing Jan 2006

Use Of Polyhydroxyalkanoates For Denitrification In Recirculating Aquaculture Systems, Maria Teresa Gutierrez-Wing

LSU Doctoral Dissertations

Increasing demand of aquacultural products is driving the industry toward more intensive culture practices. Aquacultural operations are constrained by limitations on the availability high quality waters and regulatory pressures on the discharges. Recirculating systems can address these issues by reducing the amount of water required in the operation. Closed systems are especially suited where biosecurity is important. In closed systems, nitrate accumulates, limiting the time the water can be reused. In marine inland systems, water reuse reduces the cost of salt for make up water. To increase the water reuse time, some form of nitrate removal process must be incorporated …

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Jack Kerouac's Spontaneous Prose: A Performance Genealogy Of The Fiction, Justin Thomas Trudeau Jan 2006

Jack Kerouac's Spontaneous Prose: A Performance Genealogy Of The Fiction, Justin Thomas Trudeau

LSU Doctoral Dissertations

This study analyzes Jack Kerouac’s writing method of spontaneous prose and articulates how the method can be understood as performative writing. Kerouac’s “Essentials of Spontaneous Prose,” On the Road, Visions of Cody, and Doctor Sax are explored to evaluate both the successes and failures of the author’s attempts to break literary boundaries and create a new writing method based upon spontaneous tenets. These three novels, which were written in succession from 1950 to 1953 when Kerouac was in his most productive period, represent both the emergence and dissent of the author’s use of performative writing. To explicate the cultural genesis …

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Understanding An Indigenous Curriculum In Louisiana Through Listening To Houma Oral Histories, Nicholas Anthony Ng-A-Fook Jan 2006

Understanding An Indigenous Curriculum In Louisiana Through Listening To Houma Oral Histories, Nicholas Anthony Ng-A-Fook

LSU Doctoral Dissertations

Indigenous communities have inhabited Louisiana since time immemorial. However, the national project of teaching the rise of the West as a heroic story remains the curricular centerpiece in elementary and high school history classes in North America. As a curriculum theorist, and former science and history teacher, I am concerned with the ways in which my teachings of colonialism’s cultural, historical, and national narratives suppress and silence the stories of the colonized. Therefore, the purpose of this paper (based on a four-year qualitative study) is to share oral histories of the United Houma Nation in order to illustrate their daily …

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Assessment Of Interactions Amoung Viruses Infecting Sweetpotato, Charalambos D. Kokkinos Jan 2006

Assessment Of Interactions Amoung Viruses Infecting Sweetpotato, Charalambos D. Kokkinos

LSU Doctoral Dissertations

Viral diseases, especially those caused by mixed infections, are among the economically most important diseases of sweetpotato. Real-time PCR assays were developed for the detection and quantification of the potyviruses Sweet potato feathery mottle virus (SPFMV), Sweet potato virus G (SPVG), Ipomoea vein mosaic virus (IVMV); the crinivirus Sweet potato chlorotic stunt virus (SPCSV), and the begomovirus Sweet potato leaf curl virus (SPLCV) directly from infected sweetpotato plants. Titers of SPFMV, IVMV, and SPVG were lower in singly-infected sweetpotato plants compared to singly-infected plants of the standard indicator host Brazilian morning-glory (Ipomoea setosa) and the standard propagation host I. nil …

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