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LSU Historical Dissertations and Theses

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Structure, Expression And Promoter Activity Of Ubiquitin Genes From Rice (Oryza Sativa L.)., Jianlin Wang Jan 2000

Structure, Expression And Promoter Activity Of Ubiquitin Genes From Rice (Oryza Sativa L.)., Jianlin Wang

LSU Historical Dissertations and Theses

Successful transgenic plant production is largely dependent on the use of suitable promoters. In this study, we described isolation of rice ubiquitin genes, and demonstrated the potential utility of the rice ubiquitin promoters in plant transformation systems. Two polyubiquitin genes (RUBQ1 and RUBQ2) and two ubiquitin extension/fusion genes (RUBQ3 and RUBQ4) have been isolated from a rice genomic BAC library. DNA sequence data revealed that both RUBQ1 and RUBQ2 contained an open reading frame encoding a hexameric precursor ubiquitin and an intron immediate upstream of the initiation codon. The two ubiquitin fusion/extension genes RUBQ3 and RUBQ4 contained one repeat of …

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Locally Owned And Operated: Opposition To Chain Stores, 1925--1940., Cory Lewis Sparks Jan 2000

Locally Owned And Operated: Opposition To Chain Stores, 1925--1940., Cory Lewis Sparks

LSU Historical Dissertations and Theses

During the 1920s, chain stores exploded in numbers throughout the country. Chains claimed to provide mass distribution for a mass production age. According to their executives, traditional retailing raised the cost of living and interfered with prosperity. Small retailers countered these claims by arguing that corporate retailing endangered prosperity because it concentrated ownership in the hands of a few and stripped wealth from the local community. In 1929 and 1930, anti-chain radio broadcasts sparked popular interest in the chains. Critics accused the chains of using their financial might to sell products below cost and drive competitors out of business. They …

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Efficient Iterative Synthesis Of Oligophenylene Rods And Methodology Studies Involving Aryldiazonium Tetrafluoroborate Salts And Arylboronic Esters., Douglas Macarthur Willis Jan 2000

Efficient Iterative Synthesis Of Oligophenylene Rods And Methodology Studies Involving Aryldiazonium Tetrafluoroborate Salts And Arylboronic Esters., Douglas Macarthur Willis

LSU Historical Dissertations and Theses

Suzuki coupling protocols were applied towards the design and subsequent iterative synthesis of oligophenylene rods bearing polar functional groups. These well-defined, polar-functionalized rigid rods were ultimately constructed using an efficient iterative molecular doubling approach without using protecting groups, boronic acid isolations, Grignard or organolithium reactions or preparative chromatographic methods. Currently, these rods are being appended to resorcinarene macrocyclic scaffolds in efforts towards achieving a controlled synthesis of novel, uniform, three-dimensional, electronic directional materials with extended, highly functional lower aromatic cavities. Unique methodology studies involving aryldiazonium tetrafluoroborate salts and arylboronic esters were also contrived and investigated. A novel procedure for the …

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An Information Theoretic Approach To Content Based Image Retrieval., John Morris Zachary Jr Jan 2000

An Information Theoretic Approach To Content Based Image Retrieval., John Morris Zachary Jr

LSU Historical Dissertations and Theses

We propose an information theoretic approach to the representation and comparison of color features in digital images to handle various problems in the area of content-based image retrieval. The interpretation of color histograms as joint probability density functions enables the use of a wide range of concepts from information theory to be considered in the extraction of color features from images and the computation of similarity between pairs of images. The entropy of an image is a measure of the randomness of the color distribution in an image. Rather than replacing color histograms as an image representation, we demonstrate that …

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A Study Of The Potential Use Of Asphalt Containing Synthetic Polymers For Asphalt Paving Mixes., Pei-Hung Yeh Jan 2000

A Study Of The Potential Use Of Asphalt Containing Synthetic Polymers For Asphalt Paving Mixes., Pei-Hung Yeh

LSU Historical Dissertations and Theses

Chemically modified polymer derivatives of potentially useful polymer modifiers from solid wastes, i.e. polyolefins or EPDM, were prepared by chlorination or maleation to improve asphalt blend compatibility. Chlorination of polyethylene can be controlled to convert crystalline HDPE into semicrystalline polymeric additives. Environmental scanning electron microscopy shows that dispersed CPE rich phase was larger than the HDPE rich phase in asphalt blends. Introducing chlorine atoms on polyethylene chains can improve compatibility of the asphalt-polymer blends through adjusting interaction between the components of asphalt and polymer. The grafting of maleic anhydride to polyolefins or EPDM was carried out either in solution or …

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Effects Of Reading Styles On African-American Preschoolers Of Disadvantage., Elizabeth Nowlin Witt Jan 2000

Effects Of Reading Styles On African-American Preschoolers Of Disadvantage., Elizabeth Nowlin Witt

LSU Historical Dissertations and Theses

This study investigated the effects of two styles of storybook reading within the storybook reading event (SBRE) upon African-American preschoolers of disadvantage (AAP-D). One style, performance-oriented, was thought to be closer to cultural frameworks familiar for this population. This style was contrasted with the interactive style familiar to children of middle-class. Each style was utilized with two groups of five children (ten children per condition) across three storybooks, which were each read six times. Pre- and posttesting were used to determine changes in language (semantic and discourse ability, as measured by retelling), literacy, and world knowledge. A control group of …

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The Impact Of Implementing Metacognitive Strategies On Instructional And Experiential Scaffolding., Frances Ann Steward Jan 2000

The Impact Of Implementing Metacognitive Strategies On Instructional And Experiential Scaffolding., Frances Ann Steward

LSU Historical Dissertations and Theses

The purpose of the mixed multiple case study was to explore scaffolding at home and school. Strategic instructional procedures, metacognitive strategies use, and homework procedures were examined during reading instruction and home assistance for progress. The participants are as follows: (a) The three principals setting the school's instructional tone; (b) The three reading teachers providing modeling, coaching, and encouragement during lesson presentation and feedback; (c) The six students (two fifth graders in each of the three reading classrooms) depending upon assistance for comprehension task completion; and (d) The six family members assisting with homework. The school sites were selected with …

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Oxidation -Reduction Chemistry Of Methane And Nitrous Oxide In Soils And An Approach To Minimize Their Emissions From Irrigated Rice Fields., Kewei Yu Jan 2000

Oxidation -Reduction Chemistry Of Methane And Nitrous Oxide In Soils And An Approach To Minimize Their Emissions From Irrigated Rice Fields., Kewei Yu

LSU Historical Dissertations and Theses

Rice fields are an important source of the greenhouse gases methane (CH 4) and nitrous oxide (N2O). In this dissertation study, experiments were conducted at three levels---in soil suspensions, in soil cores, and under actual field conditions, to investigate the impact of soil redox potential on CH4 and N2O emissions to the atmosphere. Methane and N2O emissions occurred at distinctively different redox conditions in the homogenous soil suspensions. No significant amounts of CH4 was produced when the soil redox potentials were above -150 mV. In the denitrification process, both N2O production and reduction occurred in the soil redox potential range …

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Well Integrity Mechanism, Failure, And Testing In Shallow Marine Sediments., Desheng Zhou Jan 2000

Well Integrity Mechanism, Failure, And Testing In Shallow Marine Sediments., Desheng Zhou

LSU Historical Dissertations and Theses

The leak-off test (LOT) is an in-situ method for testing casing shoe integrity in a well. It is used to evaluate the cement and formation integrity relative to the well plan specifications. The results determine whether any remedial cementing or corrective actions are required and are a basis for planning future wells in the area. Typical analysis of LOTs assumes an elastic wellbore and involves identification of linear trends on the recorded plots. However, LOTs recorded in shallow marine sediments (SMS) are inherently nonlinear and their analysis is a problem. Starting from the analyses of shallow soil properties, LOT plots, …

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Seasoned Equity Issuance By Closed -End Funds., William Henry Brigham Jr Jan 2000

Seasoned Equity Issuance By Closed -End Funds., William Henry Brigham Jr

LSU Historical Dissertations and Theses

This dissertation examines in detail the previously unexamined phenomenon of seasoned equity issuance by closed-end funds. Evidence presented here indicates that closed-end funds issue equity at a much higher occurrence rate than is the case for regular, operating firms in the US. Furthermore, these funds overwhelmingly use the rights offer method of equity flotation, which, outside the closed-end universe, has rarely been used in the US in recent years. The evidence produced by this study indicates that, in contrast to industrial firms, the shares of closed-end funds show no significant reaction to announcements of either rights offerings or firm commitment …

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Attitudes Of Teachers Of Spanish As A Foreign Language Toward Teaching Spanish To Hispanic Students In Urban Schools., Rossana Ramirez Boyd Jan 2000

Attitudes Of Teachers Of Spanish As A Foreign Language Toward Teaching Spanish To Hispanic Students In Urban Schools., Rossana Ramirez Boyd

LSU Historical Dissertations and Theses

Many Hispanic students do not have opportunities to develop their native language in efforts to adapt to an all English curriculum at the schools they attend. This is particularly evident among high school Hispanic students who usually possess oral fluency in Spanish but lack reading and writing skills in Spanish. The purpose of this research was to explore the attitudes of teachers of Spanish as a foreign language toward teaching Spanish to Hispanic students. This research was guided by four questions, What are the attitudes of teachers of Spanish as a foreign language toward (1) the use of Spanish? (2) …

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Cancer Mortality And *Environment In Louisiana: A Geographical Inquiry., Mihye Bark Jan 2000

Cancer Mortality And *Environment In Louisiana: A Geographical Inquiry., Mihye Bark

LSU Historical Dissertations and Theses

Cancer is one of the most serious health problems in the U.S. Louisiana mortality rates for all sites of cancer have exceeded national rates since 1950. Even though concern about the issues of environmental cancer is growing, conclusive results have not been reported. Previous studies differed in data source, data quality, time of observation, and statistical procedure, making comparison of results problematic. The spatial patterns of the most common cancer sites in Louisiana (from 1953 to 1993) and their relationships with environmental factors were investigated, using GIS software and statistical software. To provide a clear understanding of how the spatial …

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Solid -State Nmr Of High Spin Nuclei With Large Quadrupolar Coupling Constants., Pamela Louise Bryant Jan 2000

Solid -State Nmr Of High Spin Nuclei With Large Quadrupolar Coupling Constants., Pamela Louise Bryant

LSU Historical Dissertations and Theses

The goal of this study is to develop a method of characterizing the aluminum sites in solid aluminum containing systems that are difficult to determine by normal nuclear magnetic resonance spectroscopy, NMR, or X-ray crystallography. Specifically, the aim is to characterize the aluminum sites in the industrial cocatalyst methylaluminoxane, MAO. The structure of MAO, found in both solid and gel form, has not been well determined. First, an automated 27Al (spin 5/2) single-crystal NMR experiment was used to determine the experimental electric field gradient, EFG, of andalusite, a well-studied mineral with large quadrupolar interactions. The experimental results were compared to …

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Agricultural Trade Liberalization And Uneven Development: The Case Of South Korea., Heesun Chung Jan 2000

Agricultural Trade Liberalization And Uneven Development: The Case Of South Korea., Heesun Chung

LSU Historical Dissertations and Theses

The Uruguay Round of the General Agreement on Tariffs and Trade (GATT), which was concluded in 1993, was the principal global forum to discuss agricultural trade in an extensive way. In this last venue of the GATT, South Korean negotiators had to agree to open the nation's agricultural markets so as to assure manufacturing export access to international markets amidst heightening Pressure from surplus agricultural producers A broad range of economic studies have estimated that as an aftermath of the Uruguay Round, a majority of South Korean farmers, who are comparatively disadvantaged due to small-scale, labor-intensive farming, might be displaced. …

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Gods, Men And Their Gifts: A Comparison Of The "Iliad", The "Odyssey", The "Aeneid" And "Paradise Lost", Paul Norman Anderson Jan 2000

Gods, Men And Their Gifts: A Comparison Of The "Iliad", The "Odyssey", The "Aeneid" And "Paradise Lost", Paul Norman Anderson

LSU Historical Dissertations and Theses

This dissertation is an examination of the Iliad, the Odyssey, the Aeneid and Paradise Lost based upon their similar depictions of gods and men, specifically in regard to their use of gifts. The procedure is lexical and thematic in approach. The word group around which the majority of the evidence is centered is the noun 'gift' and the verb 'to give.' The nature and use of gifts is examined in the four works under consideration. However, the evidence for the notion of gift-giving is not limited by a strict positivistic approach. Evidence from the texts that clearly includes the notion …

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Interaction Between Cognitive Styles And Assessment Approaches., Mehtap Cakan Jan 2000

Interaction Between Cognitive Styles And Assessment Approaches., Mehtap Cakan

LSU Historical Dissertations and Theses

The present study investigated the interaction of cognitive style and assessment format (multiple-choice (MC) and performance-based assessments (PBA)) in second language proficiency. The participants consisted of 258 eighth-grade students. The second language achievement of the students was assessed by the Eighth Grade Proficiency/Credit Exam: French I. The cognitive style of the students was assessed by the Group Embedded Figures Test. The study also examined study habits and attitudes of field-dependent (FD) and field-independent (FI) students toward the two assessment formats. The study utilized a sequential mixed-model design, consisting of both quantitative and qualitative methods. Phase I consisted of a quantitative …

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The Influence Of Gender -Related Beliefs On Students Motor Skill Learning., Donald Gregory Scott Belcher Jan 2000

The Influence Of Gender -Related Beliefs On Students Motor Skill Learning., Donald Gregory Scott Belcher

LSU Historical Dissertations and Theses

The purpose of this study was to determine the influence of beliefs about gender appropriateness and conceptions of ability on perceived and actual competence and patterns of behavior during practice of a sex typed masculine task, the hockey wrist shot. Sixty-eight undergraduate females formed four homogeneous treatment conditions based on their beliefs about gender appropriateness and conceptions of ability: Masculine Innate (MI), Masculine Acquired (MA), Neutral Innate (NI), and Neutral Acquired (NA). Four teachers taught across all of the treatment conditions for a total of 16 learning groups. Each of the learning episodes reinforced the gender appropriateness and conception of …

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Optimization Of Gas Well Completion And Production Practices., John H. Mcmullan Jan 2000

Optimization Of Gas Well Completion And Production Practices., John H. Mcmullan

LSU Historical Dissertations and Theses

In water drive gas reservoirs, wells can be completed with a long perforated interval and produced at high rates to minimize abandonment pressure and maximize recovery. Alternatively, the perforations can be limited to the top of the productive interval and the well produced at a low rate in an effort to prevent coning which results in high abandonment pressures if the strength of the aquifer is adequate to support reservoir pressure. This study uses a reservoir simulation coning model to evaluate these two conflicting completion and production practices. The impact of completion interval, gas production rate, and reservoir permeability were …

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Factors Influencing State And Nation Wetland Management: Building Effective Management Models., Megan Kinley Greiner La Peyre Jan 2000

Factors Influencing State And Nation Wetland Management: Building Effective Management Models., Megan Kinley Greiner La Peyre

LSU Historical Dissertations and Theses

Recognition that the interaction of people and nature is implicit in every environmental problem has increased over the last century. Yet, solutions to environmental problems are impeded by uncertainty concerning the importance of socioeconomic and political conditions in dealing with environmental issues. The development of interdisciplinary management models is necessary in order to address both the biological and social causes of environmental degradation. Protection of wetland systems varies among both nations and US. states. This variation provides a unique opportunity to explore the hypothesis that socioeconomic, political and environmental variables are critical influences on wetland protection. Structural equation modeling and …

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Masked Criticism: The Whore And The Breeches Role As Articulators Of Sexual Economic Theory In The Intrigue Plays Of Aphra Behn., Mary Katherine Politz Jan 2000

Masked Criticism: The Whore And The Breeches Role As Articulators Of Sexual Economic Theory In The Intrigue Plays Of Aphra Behn., Mary Katherine Politz

LSU Historical Dissertations and Theses

Aphra Behn was an important playwright in the Restoration, second only to John Dryden in the number of plays produced during the period. In some of her early plays based on Spanish intrigue comedies, she uses the roles of whores and cross dressed women to articulate her criticism of the sexual economy within patriarchy. Masks and disguises create confusion in all the plays. Her characters, plots, structure, humor and economic concerns change with each successive play. The first play in the series, The Dutch Lover (1673) is a tale of romance where women are exchanged between men for the benefit …

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"Awakenings" On Relational Ways Of Knowing: An Ecological Perspective On Curriculum., Elaine Kent Riley Jan 2000

"Awakenings" On Relational Ways Of Knowing: An Ecological Perspective On Curriculum., Elaine Kent Riley

LSU Historical Dissertations and Theses

The human species and all nonhuman forms on the planet, have co-evolved over a 14 billion-year process, yet many people operate as if planetary life existed to support and sustain human well-being alone. Separation, dualism, and power-over ways of knowing fuel a human-centered attitude which exalts our own species above the rest of the natural world. How humans will live with the earth in the next millennium (Hogan, 1996) is one of the most fundamental questions arising at the onset of the year 2000. The planet cannot sustain continued degradation of ecological systems stemming from depletion of natural resources and …

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Slain In The Spirit: A Vodun Aesthetic In Selected Works Of Simone Schwarz -Bart, Zora Neale Hurston, And Paule Marshall., Maria Thecla Smith Jan 2000

Slain In The Spirit: A Vodun Aesthetic In Selected Works Of Simone Schwarz -Bart, Zora Neale Hurston, And Paule Marshall., Maria Thecla Smith

LSU Historical Dissertations and Theses

This study, focusing on select novels by women writers of the African diaspora, discovers a surprising commonality among works with obvious geographical, cultural and linguistic differences---an affirmation of the philosophical essence of the Vodun religion as an antidote to Western spiritual and cultural moribundity. Each of the novels---Zora Neale Hurston's Their Eyes Were Watching God, Simone Schwarz-Bart's Pluie et Vent sur Telumee Miracle, and Paule Marshall's Praisesong for the Widow---alludes to the Vodun pantheon, ancestor veneration and/or rituals in order to valorize the holistic Vodun worldview that recognizes the interconnectedness of all living things and the fluidity of boundaries between …

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Mapping Quantitative Trait Loci Controlling The Early Height Growth Of Longleaf Pine And Slash Pine., Changren Weng Jan 2000

Mapping Quantitative Trait Loci Controlling The Early Height Growth Of Longleaf Pine And Slash Pine., Changren Weng

LSU Historical Dissertations and Theses

The delay in early height growth (EHG) known as the "grass stage" has been one important factor that limits the artificial regeneration of longleaf pine (Pinus palstris Mill.). Genetic improvement of the "grass stage" by interspecific hybridization between longleaf pine and slash pine (Pinus elliottii Engelm) followed by recurrent backcrosses aiming at the introgression of genes controlling the EHG from slash pine into longleaf pine may be a solution. Developing markers tightly linked to these genes and using them in backcross breeding programs may speed the process of the introgression. Random amplified polymorphic DNA (RAPD) markers were employed to map …

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Ecology Of Seagrass Fishes And Macroinvertebrates On Guatemala's Atlantic Coast., Alejandro Arrivillaga Jan 2000

Ecology Of Seagrass Fishes And Macroinvertebrates On Guatemala's Atlantic Coast., Alejandro Arrivillaga

LSU Historical Dissertations and Theses

The ecology of fishes and macroinvertebrates inhabiting shallow seagrass beds was studied at Bahia La Graciosa, located in Amatique Bay in the Caribbean coast of Guatemala. The study area included extensive turtle grass, Thalassia testudinum, meadows over muddy substrate, whereas a more exposed shoreline also supported turtle grass meadows over sandy substrates outside the bay. A total of 166 samples were collected across two seasons and habitat types in three sampling trips to the area with a cylindrical drop sampler. Diversity and abundance of fishes and macroinvertebrates inhabiting seagrass and adjacent bare-sand sites were described to assess the relative importance …

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A Cultural Genealogy Of The Royal Court Theatre: The Renovation Of A Theatre And An Ideal., Stephen Douglas Berwind Jan 2000

A Cultural Genealogy Of The Royal Court Theatre: The Renovation Of A Theatre And An Ideal., Stephen Douglas Berwind

LSU Historical Dissertations and Theses

The Royal Court Theatre's current renovation invites a reexamination of the English Stage Company (ESC). The ESC has entered a crucible of change, raising new questions concerning the Royal Court's architectural semiotics and company's aesthetic mission as London's most acclaimed producer of new plays. This study seeks to understand the ways in which its identity has been shaped and consolidated over the last forty-two years and how the current chapter in ESC history redefines the company's identity and future achievement. The English Stage Company took over the Royal Court in early in 1956. The ESC's marriage with the theatre appears …

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What Goes On In Cross -Language Encounters: The Tactics And Strategies Of Interactional Grammar., Stuart Lee Stewart Jan 2000

What Goes On In Cross -Language Encounters: The Tactics And Strategies Of Interactional Grammar., Stuart Lee Stewart

LSU Historical Dissertations and Theses

This investigation involves analysis of cross-language encounters (CLEs), spoken discourse between native speakers (NSs) and non-native speakers (NNSs) of Spanish involved in two types of interactions: simulated service encounters and free conversation. I use a multi-tiered framework comprised of: (1) Schiffrin's (1994) functionalist approach, (2) a model of interactional grammar adapted from Ochs, Schegloff and Thompson (1996), and (3) one of the principal assumptions from conversation analysis, which focuses on the organization of interaction, while maintaining that participants' behavior provides evidence for the units, patterns and rules that are a part of all spoken interaction. Tactics and strategies examined include …

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The Debiasing Of Judgmental Errors Associated With Anxiety., Bret Gavin Bentz Jan 2000

The Debiasing Of Judgmental Errors Associated With Anxiety., Bret Gavin Bentz

LSU Historical Dissertations and Theses

It was the goal of the current study to investigate one debiasing technique and its ability to reduce judgmental errors. In addition, a rival hypothesis of demand characteristics was examined as a possible explanation of any findings of the reduction of judgmental errors. Participants were randomly assigned to either a control group or a debiasing group and asked to rate the likelihood of several hypothetical events in a 2 x 2 x 2 x 2 (Gender x Anxiety Group x Treatment Group x Repeated Measure) repeated measures experimental design. Level of anxiety responsiveness was measured to arrange subjects into a …

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Host And Parasite Interactions Among Three Symbionts: Pocket Gophers, Chewing Lice, And Endosymbiotic Bacteria., David Lee Reed Jan 2000

Host And Parasite Interactions Among Three Symbionts: Pocket Gophers, Chewing Lice, And Endosymbiotic Bacteria., David Lee Reed

LSU Historical Dissertations and Theses

This study investigates the patterns of cophylogeny documented between pocket gophers (Rodentia: Geomyidae) and their ectoparasitic chewing lice (Phthiraptera: Trichodectidae). The first two chapters investigate the mechanisms that reinforce cospeciation in this system. Chapter one examines whether mammalian hair diameter is a resource tracked by chewing lice, and thus reinforces the patterns of cospeciation. I found that hair diameter of pocket gophers is correlated with gopher body size and the body size of the ectoparasitic chewing lice. Hair diameter also is correlated with size of the rostral groove, which chewing lice use to grasp hair shafts of pocket gophers. In …

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The History Of Our Lady Of The Lake College, 1923--2000: A Study Of Organizational Change., Linda Carol Rakestraw Pendergast Jan 2000

The History Of Our Lady Of The Lake College, 1923--2000: A Study Of Organizational Change., Linda Carol Rakestraw Pendergast

LSU Historical Dissertations and Theses

This qualitative research study investigated the history of Our Lady of the Lake College from 1923 through 2000. It endeavored to determine the influence of the times, the events, the people, and the traditions that have contributed to its development and progress in the seventy-seven years that have passed since it was established. The study also sought to document the important institutional events that transpired during this time period and establish a continuity of the College's progress through the years from a hospital-based diploma program in nursing to a free standing degree granting institution. In addition to the evolutionary development …

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School Life On The Mississippi: An Inquiry Into The Impact Of The Louisiana Reform Movement Related To Standards In World History Instruction In Three Secondary School Settings., Michael Joseph Schramm Jan 2000

School Life On The Mississippi: An Inquiry Into The Impact Of The Louisiana Reform Movement Related To Standards In World History Instruction In Three Secondary School Settings., Michael Joseph Schramm

LSU Historical Dissertations and Theses

The purpose of this study was to explore the impact of standards on the instruction of world history in three secondary school settings. Contact with the Department of Education of the State of Louisiana found that the implementation of standards had only begun in 1997. After a grace period for implementation, the inaugural testing of the accountability system for these standards occurred in the spring of 2000. Therefore, this study became an exploratory investigation into the use of standards as they impact world history instruction. The first research question was designed to assist the researcher in exploring the influence that …

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