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Design, Synthesis, And Applications Of Bio-Derived Crosslinking Monomers For Molecular Imprinting, Martha Sibrian-Vazquez Jan 2003

Design, Synthesis, And Applications Of Bio-Derived Crosslinking Monomers For Molecular Imprinting, Martha Sibrian-Vazquez

LSU Doctoral Dissertations

Most of the research in the field of molecular imprinting has been focused on the development of new functional monomers, in order to improve the molecular recognition properties afforded by these materials. The role of the crosslinking monomer has often been overlooked, since it is considered an inert component that only provides a scaffold to support the binding sites. However, the crosslinking monomer represents a high percent (80-90%) of the composition of molecularly imprinted polymers (MIPs), which can have a large influence on the MIPs properties. This research addresses the design, synthesis, and applications of new crosslinking monomers for molecular …

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Machine Learning Techniques For Efficient Query Processing In Kowledge Base Systems, Kevin Paul Grant Jan 2003

Machine Learning Techniques For Efficient Query Processing In Kowledge Base Systems, Kevin Paul Grant

LSU Doctoral Dissertations

In this dissertation we propose a new technique for efficient query processing in knowledge base systems. Query processing in knowledge base systems poses strong computational challenges because of the presence of combinatorial explosion. This arises because at any point during query processing there may be too many subqueries available for further exploration. Overcoming this difficulty requires effective mechanisms for choosing from among these subqueries good subqueries for further processing. Inspired by existing works on stochastic logic programs, compositional modeling and probabilistic heuristic estimates we create a new, nondeterministic method to accomplish the task of subquery selection for query processing. Specifically, …

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Politicizing The Reader In The American Lyric-Epic: Walt Whitman's Leaves Of Grass And Pablo Neruda's Canto General, William Allegrezza Jan 2003

Politicizing The Reader In The American Lyric-Epic: Walt Whitman's Leaves Of Grass And Pablo Neruda's Canto General, William Allegrezza

LSU Doctoral Dissertations

Both Walt Whitman and Pablo Neruda wanted to create epic works that would distinguish American literature from the literary traditions of Europe, works that would grow organically from the native landscapes and peoples of the Americas. Part of their projects included creating works that would act as political sourcebooks for their cultures. Whitman wanted to foster a democratic culture in the United States through writing a grand poetic work, while Neruda wanted to create a communist culture in Latin America through an epic work. Soon into the project Whitman realized that the traditional epic was not a suitable form for …

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"Science In Skirts": Representations Of Women In Science In The "B" Science Fiction Films Of The 1950s, Bonnie Noonan Jan 2003

"Science In Skirts": Representations Of Women In Science In The "B" Science Fiction Films Of The 1950s, Bonnie Noonan

LSU Doctoral Dissertations

This project shows how central representations of women in science were to the “B” science fiction films of the 1950s and uses these films as valuable indicators for cultural analysis. I argue that the emergence of the modern American science fiction film in 1950 combined with the situation of post-W.W.II women in science to create a genre explicitly amenable to exploring the tension between a woman’s place in the home and her place in the work force, particularly in the fields of science. Out of a context of 114 “B” science fiction films produced between 1950 and 1966, I offer …

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Barriers To Adherence In A Free Medication Program For Low Income Individual With Type 2 Diabetes, Bhrett A. Mccabe Jan 2003

Barriers To Adherence In A Free Medication Program For Low Income Individual With Type 2 Diabetes, Bhrett A. Mccabe

LSU Doctoral Dissertations

Diabetes self-management and treatment require significant patient involvement to maintain appropriate glucose control. Glucose control is directly related to adherence to a variety of regimens, of which medication adherence may be most important. Unfortunately, adherence to these regimens has been quite poor. Among low income patients, the strongest reason given for medication nonadherence has been the cost associated with purchasing medication. In 1999, the Louisiana State University Health Care Services Division instituted a free medication program for low income individuals with chronic illnesses, including diabetes. Despite removing this strongest barrier to adherence among low income patients, initial data from this …

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Black Willow (Salix Nigra) Use In Phytoremediation Techniques To Remove The Herbicide Bentazon From Shallow Groundwater, Robert Mark Conger Jan 2003

Black Willow (Salix Nigra) Use In Phytoremediation Techniques To Remove The Herbicide Bentazon From Shallow Groundwater, Robert Mark Conger

LSU Doctoral Dissertations

Wetland environments have been impacted by the activities of man over the past several hundred years in North America. Industrialization into wetland areas has brought with it anthropogenic compounds that have been released into soils and groundwater. The use of phytoremediation to detoxify soil and groundwater began in the mid 1990's and has become a popular remediation technology. In 1994, a feasibility study for using phytoremediation in such an industrialized wetland area was conducted at a petrochemical facility at BASF Corporation, located about 20 kilometers south of Baton Rouge, Louisiana in Ascension Parish. The test site consisted of low level …

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Optimization Of The Light Dynamics In The Hydraulically Integrated Serial Turbidostat Algal Reactor (Histar), Barbara Christine Benson Jan 2003

Optimization Of The Light Dynamics In The Hydraulically Integrated Serial Turbidostat Algal Reactor (Histar), Barbara Christine Benson

LSU Doctoral Dissertations

The research objective was the optimization of light dynamics in a Hydraulically Integrated Serial Turbidostat Algal Reactor (HISTAR). A deterministic model of HISTAR productivity that was responsive to manipulations of photosynthetic photon flux fluence rate (PPFFR) was developed, calibrated, and applied. A series of experiments was conducted to define the mathematical equations that best describe three relationships. The first relationship was between the elevation (E) of the light source and the culture surface PPFFR (Io). The second relationship was between the biomass concentration (X) in the experimental unit and the average PPFFR in the reactor (Ia). …

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Louisiana Sugar: A Geohistorical Perspective, Elizabeth Vaughan Jan 2003

Louisiana Sugar: A Geohistorical Perspective, Elizabeth Vaughan

LSU Doctoral Dissertations

The planting of sugarcane in Louisiana’s southern parishes has persisted with stunning continuity since its introduction in the late eighteenth century. This industry, however, is an economic and agricultural anomaly. It is a relic of the sixteenth-century expansion of European capitalism in which granulated sugar, then a novel product, stimulated the Atlantic slave trade and contributed to the incorporation of the sugar-producing colonies of the Americas into an emerging European-world economy. The Louisiana sugar industry was launched in 1795 with a historic granulation from a new variety of sugarcane recently introduced into the Caribbean. From this early success, the industry …

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Beyond The Solid South: Southern Members Of Congress And The Vietnam War, Mark David Carson Jan 2003

Beyond The Solid South: Southern Members Of Congress And The Vietnam War, Mark David Carson

LSU Doctoral Dissertations

From the beginning of America's involvement in Vietnam in 1943 to its disastrous end in 1975, southern members of Congress exerted a significant influence on and expressed divergent opinions about Cold War foreign policy. In part because of an enormous increase in military spending in the South fueled by prominent membership on military committees, congressional hawks were more inclined to support military aid for countries fighting communism and accept military over civilian advice in prosecuting the Cold War. Hawkish southerners embraced containment wholeheartedly, exhibited an intense patriotism, and concerned themselves with upholding personal and national honor. Therefore, with some prominent …

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Bureaucratic Influence In Congressional Roll-Call Voting, William Blair Jan 2003

Bureaucratic Influence In Congressional Roll-Call Voting, William Blair

LSU Doctoral Dissertations

The focus of this dissertation is on one of the many relationships that exist between the bureaucracy and government: decision-making by elected representatives and the political influence of government employees on their decision-making. Specifically, it is with bureaucrats and the degree to which they may utilize political influence to create a disproportionate influence over government policy and decision-making in the United States House of Representatives. I argue that the inherent qualities of bureaucrats suggest that they are significant and influential constituency for representatives. They are an identifiable constituency to representatives, and have the means and opportunity to wield political influence. …

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Global Expression Analysis Of Deinococcus Radiodurans' Response To Ionizing Radiation: Irre Is A Novel Regulator Of This Response, Ashlee M. Earl Jan 2003

Global Expression Analysis Of Deinococcus Radiodurans' Response To Ionizing Radiation: Irre Is A Novel Regulator Of This Response, Ashlee M. Earl

LSU Doctoral Dissertations

IRS24 is a strain of Deinococcus radiodurans carrying mutations in two loci, uvrA and irrE, rendering it sensitive to the lethal effects of UV and ionizing radiation. These sensitivities can be reversed by introducing the wild type irrE allele back into IRS24 via natural transformation. The irrE allele was localized to a 970bp region of D. radiodurans R1 Chromosome I containing one putative open reading frame, DR0167, and 179bp of upstream sequence. Subsequent sequence analysis of the irrE allele in IRS24 revealed a transition mutation at codon 111 of DR0167 (IrrE) resulting in an arginine to cysteine amino acid substitution. …

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The Louisiana Calf-To-Carcass Program: Growth And Carcass Traits, James E. Devillier Jan 2003

The Louisiana Calf-To-Carcass Program: Growth And Carcass Traits, James E. Devillier

LSU Doctoral Dissertations

Feedlot and carcass data from 1,533 weanling steers consigned to the Louisiana Calf-to-Carcass program from 1992 to 1998 were used to evaluate the influence of feeder calf grade, sire breed, and initial feedlot weight on growth and carcass traits. Each October, spring born calves were delivered to Clinton, Ruston, or Lake Charles loadout sites. Steers were identified by sire breed, tagged, weighed, assigned a feeder calf grade. Forty-six, 18, 26, and 10 percent of the steers graded large frame-thick muscle, large frame-moderate muscle, medium frame-thick muscle, and medium frame-moderate muscle, respectively. Steers were trucked to a commercial feedlot and sorted …

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Imagining Corporate Culture: The Industrial Paternalism Of William Hesketh Lever At Port Sunlight, 1888-1925, Jeremy David Rowan Jan 2003

Imagining Corporate Culture: The Industrial Paternalism Of William Hesketh Lever At Port Sunlight, 1888-1925, Jeremy David Rowan

LSU Doctoral Dissertations

At Lever Brothers soap company in Port Sunlight, U.K., William Lever, between 1888-1925, instituted employee benefits that preceded the welfare state. Yet, in addition to providing tangible benefits for the employees (including free medical care, pensions, an employee profit-sharing scheme), Lever also created a strong corporate identity for his employees by cultivating a strong company and personal image, one constructed in response to national discourses surrounding industrialization, empire, national identity, and economic decline. Lever offered his company as a solution to national concerns and thus posited his workers as participants in patriotic efforts and empire-building. He forged an effective company …

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A Role For Constitutive Pathogen Resistance5 In Promoting Cell Expansion In Arabidopsis Thaliana, Ginger Marie Brininstool Jan 2003

A Role For Constitutive Pathogen Resistance5 In Promoting Cell Expansion In Arabidopsis Thaliana, Ginger Marie Brininstool

LSU Doctoral Dissertations

Arabidopsis thaliana is a model organism used for genetic, molecular, and biochemical analyses of higher plant processes. Leaf hairs (trichomes) on the surface of Arabidopsis leaves are macroscopic single cells that develop by elaborate cell expansion and differentiation of the epidermis. Arabidopsis trichomes provide an excellent model to study plant cell expansion and differentiation and the cell cycle. Upon maturation, an Arabidopsis trichome becomes a branched, stellate structure with a highly birefringent cell wall. Arabidopsis mutants have been isolated that have trichomes that look glassy and have reduced birefringence. CONSTITUTIVE PATHOGEN RESISTANCE5 (CPR5) is a previously isolated Arabidopsis gene observed …

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Collective Efficacy: A Framework For Understanding Classroom Teacher's Perceptions Of Integrating Physical Activity, Melissa Ann Park Jan 2003

Collective Efficacy: A Framework For Understanding Classroom Teacher's Perceptions Of Integrating Physical Activity, Melissa Ann Park

LSU Doctoral Dissertations

Children’s physical inactivity is becoming an important health concern, and it has been suggested by professionals that school programs can be important in the effort to increase activity levels. Physical education specialists cannot achieve the goal of significantly increasing children’s activity in isolation, and it is apparent that whole school programs at the elementary level have the potential to foster active lifestyles. If those programs are to be successful, all school personnel must play a role, so it is important to find ways to facilitate their involvement. The purpose of this study was to use collective efficacy as a framework …

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Quantitative Inheritance Of Calpastatin Activity As An Assessment Measure For Meat Tenderness In Brahman Steers, Fuad Mohammad Tawfiq Odeh Jan 2003

Quantitative Inheritance Of Calpastatin Activity As An Assessment Measure For Meat Tenderness In Brahman Steers, Fuad Mohammad Tawfiq Odeh

LSU Doctoral Dissertations

Calpastatin activity at 24 h postmortem is inversely proportional to postmortem tenderization and accounts for a greater proportion of the variation in beef tenderness. Tenderness was determined by measurement of 24 h postmortem longissimus muscle calpastatin activity (CA) and Warner-Bratzler shear force after 7 and 14 d of steak aging. The quantitative inheritance of tenderness in Brahman steers was investigated phenotypically by Multiple Trait Derivative-Free Restricted Maximum Likelihood (MTDFREML) procedures and genotypically by using restriction fragment length polymorphisms (RFLP), a microsatellite marker, and DNA sequence analyses. In experiment 1, MTDFREML was used to obtain the genetic parameters of tenderness traits …

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Perceived Fairness Of And Satisfaction With Employee Performance Appraisal, Marie Burns Walsh Jan 2003

Perceived Fairness Of And Satisfaction With Employee Performance Appraisal, Marie Burns Walsh

LSU Doctoral Dissertations

Employee performance appraisal is one of the most commonly used management tools in the United States. Over 90 percent of large organizations including 75 percent of state employment systems require some type of annual performance appraisal (Seldon, Ingraham & Jacobson, 2001). Performance appraisal is one of the most widely researched areas in industrial/organizational psychology (Murphy & Cleveland, 1993). However, the traditional research agenda has done little to improve the usefulness of performance appraisal as a managerial tool. Recent research has moved away from studies of rater accuracy and psychometric measures to themes of employee reactions towards performance appraisal as indicators …

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A Structured Content Analysis Of Five Contemporary Etude Books For The Violin, Michael Kim Buckles Jan 2003

A Structured Content Analysis Of Five Contemporary Etude Books For The Violin, Michael Kim Buckles

LSU Doctoral Dissertations

The use of etudes has long been a time-honored device in developing, shaping, and expanding the technical skills of the violinist. Certain etude books, most notably those by Kreutzer, Rode, and Dont, have become standard. Yet, these classic etude books prove to be insufficient for the preparation of atonal, contemporary literature. Individual accounts by violin scholars and pedagogues indicate that there is a major void in contemporary etude literature for the violin, yet when the totality of what violin scholars and pedagogues have written over time is considered, it appears by numbers alone that no void exists today. While certainly …

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Splitter Theorems For 3- And 4-Regular Graphs, Jinko Kanno Jan 2003

Splitter Theorems For 3- And 4-Regular Graphs, Jinko Kanno

LSU Doctoral Dissertations

Let g be a class of graphs and ≤ be a graph containment relation. A splitter theorem for g under ≤ is a result that claims the existence of a set O of graph operations such that if G and H are in g and H≤G with G≠H, then there is a decreasing sequence of graphs from G to H, say G=G0≥G1≥G2...Gt=H, all intermediate graphs are in g, and each Gi can be obtained from Gi-1 by applying a single …

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Your Blues Ain't Like Mine: Exploring The Promotion And Tenure Process Of African American Female Professors At Select Research I Universities In The South, Tonetta Beloney-Morrison Jan 2003

Your Blues Ain't Like Mine: Exploring The Promotion And Tenure Process Of African American Female Professors At Select Research I Universities In The South, Tonetta Beloney-Morrison

LSU Doctoral Dissertations

Using a qualitative approach with Black feminism as a theoretical framework, Your Blues Ain't Like Mine: Exploring the Promotion and Tenure Process of African American Female Professors at Select Research I Universities in the South is a compilation of oral histories from eight female, associate and full professors. The study focused on the promotion and tenure experiences of the participants and examined how day-to-day interactions with colleagues and departmental climate impact the promotion and tenure process. In the study, the participants provide candid, first-person accounts of their experiences, struggles and successes in the pursuit of promotion and tenure. Interviews were …

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The Bardic Utterance In Situation Comedy Theme Songs, 1960-2000, Joni Melissa Butcher Jan 2003

The Bardic Utterance In Situation Comedy Theme Songs, 1960-2000, Joni Melissa Butcher

LSU Doctoral Dissertations

The purpose of this study is to examine the function of the bard in situation comedy theme songs. This study calls upon Fiske and Hartley's concept of television as a cultural bard, a singer and teller of stories that create and conserve community. The bard reaffirms the culture's identity while delivering social and political messages relevant to the culture at specific times throughout history. This study also draws upon social-historical and cultural perspectives, and a selective semiotic analysis to investigate the visual, vocal, and musical themes from four decades of television sitcoms. The shows and themes from the 1960s include …

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Expert Assessments Of E-Commerce In Sub-Saharan Africa: A Theoretical Model Of Infrastructure And Culture For Doing Business Using The Internet, John Chituanya Okoli Jan 2003

Expert Assessments Of E-Commerce In Sub-Saharan Africa: A Theoretical Model Of Infrastructure And Culture For Doing Business Using The Internet, John Chituanya Okoli

LSU Doctoral Dissertations

In spite of numerous socioeconomic problems in Sub-Saharan Africa (SSA), there has been an increasing growth of Internet connectivity, and much business activity has arisen to take advantage of this technology. This dissertation investigates experts’ assessments of the pertinent factors affecting e-business in SSA from the dual perspective of national infrastructure and culture. I review the literature related to e-business in SSA and develop three conceptual models that identify various pertinent factors and hypothesize their interrelationships in determining e-business outcomes. The first model includes all the factors I identify; the second model examines those factors that operate at the national …

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Frank Ferko's The Hildegard Motets: A Conductor's Preparatory Guide, David Neil Childs Jan 2003

Frank Ferko's The Hildegard Motets: A Conductor's Preparatory Guide, David Neil Childs

LSU Doctoral Dissertations

The music of Hildegard of Bingen has received much attention from Frank Ferko in the past decade, but his interest in the medieval mystic has not stopped there. At the heart of his intense affection for her music are the wonderful visions she expressed through this particular medium, but also through her vivid, and at times, abstruse, poetry. His Hildegard Organ Cycle (1996), a set of ten symphonic meditations on the visions from De operatione Det, and his Missa O Ecclesia: Communion (1999), are both examples of instrumental works that bear direct reference to the twelfth-century abbess' writings. The Hildegard …

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Millennial-Scale Variations And Centennial-Scale Events In The Southwest Asian Monsoon: Pollen Evidence From Tibet, Caiming Shen Jan 2003

Millennial-Scale Variations And Centennial-Scale Events In The Southwest Asian Monsoon: Pollen Evidence From Tibet, Caiming Shen

LSU Doctoral Dissertations

Using quantitative reconstructions of vegetation and climate based on 234 surface samples and four fossil pollen records, a systematic study of millennial-scale variations and centennial-scale events in the Southwest monsoon over the last 14 000 years in the Tibetan Plateau was conducted. The SW monsoon stayed weak between 14 000 and 11 000 cal. yr BP. A marked drop in July temperature during 12 800 –11 500 cal. yr BP may indicate the occurrence of the Younger Dryas cold event. The SW monsoon started to intensify at 11 000 cal. yr BP. However, it did not increase monotonically, but abruptly …

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Empirical Analysis Of Economic Growth, Winford Henderson Masanjala Jan 2003

Empirical Analysis Of Economic Growth, Winford Henderson Masanjala

LSU Doctoral Dissertations

International evidence on growth rates in per capita incomes reveals persistent differences in development patterns among nations, and shows that the world distribution of per capita income is multi-modal with several basins of attraction. This dissertation investigates the factors underlying these international variations in both the level and rate of growth of per capita incomes. The first essay examines whether nonlinearities in the aggregate production function can explain parameter heterogeneity in the Solow (1956) growth regressions. The choice of and alternative specification of the production function is justified by showing that cross-country level regressions are more consistent with the more …

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Solid-Phase Dna Sequencing Reactions Performed In Micro-Capillary Reactors And Solid-Phase Reversible Immobilization In Microfluidic Chips For Purification Of Dye-Labeled Dna Sequencing Fragments, Yichuan Xu Jan 2003

Solid-Phase Dna Sequencing Reactions Performed In Micro-Capillary Reactors And Solid-Phase Reversible Immobilization In Microfluidic Chips For Purification Of Dye-Labeled Dna Sequencing Fragments, Yichuan Xu

LSU Doctoral Dissertations

The research presented in this dissertation involves micro-capillary reactors for solid phase DNA sequencing, the identification of dye terminator sequencing fragments with time-resolved methods, and purification of dye-labeled DNA fragments using solid- phase reversible immobilization in microfluidic chips. Solid-phase micro-reactors have been prepared for DNA sequencing applications using slab gel electrophoresis. A PCR product was immobilized to the interior wall of a fused-silica capillary tube via a biotin-streptavidin linkage. Solid-phase sequencing was carried out in micro-capillary reactors using a four-lane, single color dye primer chemistry strategy. The read length was found to be 589 bases. The complementary DNA fragments generated …

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Effects Of Fire Intensity On Groundcover Shrubs In A Frequently Burned Longleaf Pine Savanna, Jarrod Matthew Thaxton Jan 2003

Effects Of Fire Intensity On Groundcover Shrubs In A Frequently Burned Longleaf Pine Savanna, Jarrod Matthew Thaxton

LSU Doctoral Dissertations

Variation in fire intensity may affect the structure and composition of frequently burned plant communities. I hypothesize that small-scale variation in fuel loads affects fire intensity within single fires in frequently burned savannas. Furthermore, I expect that local differences in fire intensity produce predictable patterns to the demography of groundcover shrubs. I tested these hypotheses by manipulating fuel loads in a longleaf pine savanna. Fuel load treatments consisted of fine fuel removal, pine needle addition, wood addition and unaltered control, mimicking naturally occurring fuel load variation. Treatments were repeated in 1m2 subplots over two sets of biennial burns and shrub …

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Clay Landfill Liners Subject To Variable Interfacial Redox And Ph Conditions-Heavy Metal And Clay Interactions, Ping Zhou Jan 2003

Clay Landfill Liners Subject To Variable Interfacial Redox And Ph Conditions-Heavy Metal And Clay Interactions, Ping Zhou

LSU Doctoral Dissertations

Municipal landfill leachate contains high levels of metal species, including Cu, Zn, Cd and Pb generating competitive interactions between these metal species and the landfill clay liner materials. Characterization of the clay fraction, physical and chemical characteristics of landfill clay liner materials, the competitive interaction of metal species with clay liner materials, the kinetic modeling of metal species transport in clay liner, and the effect of cyclic interfacial redox potential on the structural changes to the clay liner and leachate metal transport were investigated in this study. The clay liner materials studied included Na-bentonite, kaolinite and Amite soil (sandy silty …

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Evaluation Of Government Interventions In Ghana's Forest Product Trade: A Post-Intervention Impact Assessment And Perceptions Of Marketing Implications, Ben Nathan Donkor Jan 2003

Evaluation Of Government Interventions In Ghana's Forest Product Trade: A Post-Intervention Impact Assessment And Perceptions Of Marketing Implications, Ben Nathan Donkor

LSU Doctoral Dissertations

Since the mid 1990s Ghana's forestry sector has been going through reforms geared towards achieving the ITTO Year 2000 Objective for sustainable forest management and forest product trade. The reforms were partly introduced through legal approaches and also through activities under a long-term Forestry Sector Development Master Plan. The legal approaches mainly dealt with strengthening of sector institutions to effectively carry out forest concession administration and management, stumpage fee increases and more punitive actions against forest offences. Reforms with more direct impact on forest product export trade came through the implementation of the Forestry Sector Development Master Plan - reduction …

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Chemical Coupling In Wood-Polymer Composites, Ziqiang Lu Jan 2003

Chemical Coupling In Wood-Polymer Composites, Ziqiang Lu

LSU Doctoral Dissertations

Chemical coupling plays an important role in improving interfacial bonding strength in wood-polymer composites. In this study, the effects of coupling agent type and structure, graft polymerization of coupling agents, interfacial wettability, coupling treatment and process, coupling agent distribution, and coupling agent performance on chemical coupling were investigated. Coupling mechanisms were established based on maleated polyethylene copolymers. For maleated wood veneer, the relationship among graft rate, concentration, and retention of coupling agent followed three-dimensional parabloid models. Wettability of maleated wood surface was related to acid number, amount of free or ungrafted maleic anhydride groups, and coupling agent concentration. Dynamic contact …

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