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Modeling Of River Hydrodynamics And Active Cap Effectiveness In The Anacostia River, Keegan L. Roberts Jan 2004

Modeling Of River Hydrodynamics And Active Cap Effectiveness In The Anacostia River, Keegan L. Roberts

LSU Master's Theses

The Anacostia Active Capping Project (AACP) is a United States Environmental Protection Agency (EPA) funded initiative to develop and implement, on a field scale, active capping barrier technologies. Overseen by the Hazardous Substance Research Center, South and Southwest (HSRC), the AACP plans to demonstrate the ability of active capping barrier technologies to prevent the migration of contaminants from the sediment bed to the overlying water column of the Anacostia River. The demonstration project will involve the placement and monitoring of four individual types of capping materials (apatite, Aquablok, coke breeze, and sand) and the monitoring of one control (i.e. uncapped) …

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Experimental And Computational Modeling Of Granular Materials, Orlando Boscan Jan 2004

Experimental And Computational Modeling Of Granular Materials, Orlando Boscan

LSU Master's Theses

4-inch cubical sand specimens were been tested under drained conditions using a wide range of stress paths. The testing was performed by means of a true (cubical) triaxial device that has been conditioned for this study. This testing set-up consisted of a servo-controlled, single-boundary type apparatus, with six flexible membranes that create a center cavity surrounding the soil specimens. This thesis illustrates the functioning of the triaxial device, including detailed descriptions of the device components, sample preparation, and a practical application related to the mechanical characterization of granular materials using critical state soil mechanics. An experimental program, based on the …

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Metal-Doped Rare Earth Oxide Catalysts For Condensations To Ketones, Arvind Karkal Bhat Jan 2004

Metal-Doped Rare Earth Oxide Catalysts For Condensations To Ketones, Arvind Karkal Bhat

LSU Master's Theses

Metal-doped supported rare earth oxide catalysts were examined to determine their suitability for the decarboxylative condensation of two carboxylic acids to produce ketones. The catalysts were characterized based on chemisorption tests, coke analysis using thermo-gravimetric analysis and X-ray absorption spectroscopy. Effect of catalyst particle size on rate of reaction was studied for various supported cerium oxide catalysts. Catalysts were tested for activity, selectivity, and stability using isothermal fixed bed reactors. Optimal operating conditions for the production of diisopropyl ketone and methyl nonyl ketone were determined. It was found that supported cerium oxide catalysts effectively catalyzed the condensation of isobutyric acid …

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What Next?: The German Strategy Crisis During The Summer Of 1940, Leonard Spencer Cooley Jan 2004

What Next?: The German Strategy Crisis During The Summer Of 1940, Leonard Spencer Cooley

LSU Major Papers

The German blitzkrieg across France during May 1940 was the culmination of three years of daring political and military moves that had brought most of Europe under German control. It was the German dictator Adolf Hitler who had outguessed his advisors. Yet, Hitler's bold moves in Western Europe ended with his army's dash across France, and the failure to strike Great Britain that summer when the British were at one of the weakest points in their entire history. After Germany defeated France, Hitler began a fruitless period of waiting for Great Britain to sue for peace. Unlike Hitler, some in …

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The Influence Of Bulgarian Folk Music On Petar Christoskov's Suites And Rhapsodies For Solo Violin, Blagomira Paskaleva Lipari Jan 2004

The Influence Of Bulgarian Folk Music On Petar Christoskov's Suites And Rhapsodies For Solo Violin, Blagomira Paskaleva Lipari

LSU Major Papers

Petar Christoskov, born in 1917 in Sofia, is among the most prolific of Bulgarian violinists, pedagogues and composers of the twentieth century. Christoskov’s Suites and Rhapsodies for solo violin represent both an internal evolution of Bulgarian music and an incorporation of the Bulgarian musical tradition into the larger world music scene. Bulgaria’s folk musical tradition was routinely infused and enriched over the course of the late 19th and 20th centuries. Christoskov’s efforts were presaged and made possible by a host of earlier composers and performers. But the evolution of the Bulgarian style was also shaped by larger historical trends and …

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Quality Assurance Testing Of The Eclox-M In Detecting Terrorism Threats In Louisiana's Public Drinking Water Systems, Jessica Coleman Jan 2004

Quality Assurance Testing Of The Eclox-M In Detecting Terrorism Threats In Louisiana's Public Drinking Water Systems, Jessica Coleman

LSU Master's Theses

A quality assurance testing of the ECLOX-M™, a rapid water quality indicator used in potential terrorist attacks, was evaluated for its adequacy in nine regional Louisiana water systems. The ECLOX-M™ system uses enhanced chemiluminescence to measure toxicity in water by integration of a mixture of luminol (C8H7O3N3), and an oxidant in the presence of a catalyst enzyme - horseradish peroxidase (HRP). Water samples were tested for chemiluminescence, chlorine content, pH, and arsenic and/or nerve agent/pesticide contamination. In addition, three toxic industrial chemical standards were evaluated (mercury, a volatile liquid mixture, and a …

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Evaluation Of Growth, Production And Cold Tolerance Of Four Varieties Of Tilapia, Patricio Enrique Paz Jan 2004

Evaluation Of Growth, Production And Cold Tolerance Of Four Varieties Of Tilapia, Patricio Enrique Paz

LSU Master's Theses

As global tilapia production grows, it is important to characterize varieties available for production and generate data on environmental tolerances. This study generated data on tolerances, adaptabilities and production characteristics of four tilapia varieties. Goals of this study were to: (1) compare growth of four tilapia varieties in two types of recirculating systems, (2) evaluate juvenile growth of seven tilapia varieties in fresh and brackishwater mesocosms, and (3) estimate cold tolerance of juveniles of four tilapia varieties in fresh and brackishwater. Nile tilapia (Oreochromis niloticus), blue tilapia (Oreochromis aureus), Mississippi commercial strain tilapia (MCS), and Florida red tilapia (FRT) were …

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Constructive Habituation As An Educational Approach To Process-Object Reification In Mathematics, Alonzo F. Peterson Jan 2004

Constructive Habituation As An Educational Approach To Process-Object Reification In Mathematics, Alonzo F. Peterson

LSU Doctoral Dissertations

Sfard and Thompson (1994) state that what matters most is that educators develop ways of thinking, teaching, and learning mathematics. This study introduced constructive habituation, a new strategy developed to aid both students and teachers in the thinking, teaching, and learning of mathematics. Constructive habituation attempts to unite constructivist teaching methods aimed at supporting students’ conceptual understanding of content and habituationist teaching method aimed at establishing routine responses to routine tasks. This study is exploratory in nature, designed to investigate if constructive habituation is a more effective means than a traditional teaching method in helping students reach process-object reification as …

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The Effects Of Auditory Distraction On Attention Performance In Asymptomatic College Students With A History Of Mild Head Injury, John H.,Ii Denning Jan 2004

The Effects Of Auditory Distraction On Attention Performance In Asymptomatic College Students With A History Of Mild Head Injury, John H.,Ii Denning

LSU Doctoral Dissertations

Introduction: The majority of individuals experiencing a mild head injury (MHI) recover fully experiencing few residual symptoms. Some individuals who fully recover have shown evidence of residual, albeit subtle, brain functioning disturbances on tasks requiring high levels of cognitive effort. Also, memory complaints in MHI patients may be related to these subtle difficulties when cognitive resources are overwhelmed. This study assessed a group of asymptomatic college students with a history of MHI to determine if there were any residual attention difficulties as well as increased memory complaints. Method: One-hundred twelve college students with and without a history of MHI were …

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The Syntheses Of Novel Indicators And Materials For Chiral Separation, Rolanda Johnson Jan 2004

The Syntheses Of Novel Indicators And Materials For Chiral Separation, Rolanda Johnson

LSU Doctoral Dissertations

The colorimetric properties of resorcinarene solutions had not been fully investigated since von Baeyer's initial synthesis. We find that the solutions containing resorcinarene macrocycles develop color upon heating or standing. In the presence of saccharides, these solutions exhibit significant color changes which are readily observable by visual inspection. We determined that the solution color is due to macrocycle ring opening and oxidation. The optical responses to saccharides are due to complexation of the sugar with the acyclic chromophores. We have applied these mechanistic insights towards the challenging problems of the visual detection of saccharides and other important biologically analytes. In …

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An Original Composition, Symphony No. 1, Pollock And An Analysis Of The Evolution Of Frank Zappa's "Be-Bop Tango", William Morris Price Jan 2004

An Original Composition, Symphony No. 1, Pollock And An Analysis Of The Evolution Of Frank Zappa's "Be-Bop Tango", William Morris Price

LSU Doctoral Dissertations

Part one of this dissertation is an original composition, Symphony No. 1, Pollock. It uses as a conceptual impetus the abstract expressionism of Jackson Pollock’s paintings from the 1950’s. It employs the following instrumentation: (2-2-2-2, 4-3-3-1, 3 percussion, piano, harp, and strings). The work is composed in one movement, which is divided into four major sections (A-B-A/C-B) that are distinct from each other with respect to style and tempo. The first major section of the composition serves as a slow introduction. The second major section serves as a contrast and is based conceptually on Pollock’s abstract works and formally on …

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Storytelling From The Margins: The Healing Narratives Of J. California Cooper, Cynthia Downing Bryant Jan 2004

Storytelling From The Margins: The Healing Narratives Of J. California Cooper, Cynthia Downing Bryant

LSU Doctoral Dissertations

This study examines the therapeutic qualities of selected short stories and novels by contemporary African American woman writer, J. California Cooper. Specifically, I examine the manner in which Cooper's texts can be appreciated as "healing narratives." Healing narratives, as defined in this study, are those texts in which the author consciously creates fictitious representations of reality, while employing the concept of hope as a central and guiding factor. Those aspects of the narrative that have the ability to heal or "lay hands on" a reader vary because the effectiveness of the story depends upon how well the reader can identify …

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Optimization Of A Skewed Logistic Distribution With Respect To The Kolmogorov-Smirnov Test, James Charles Finney Jan 2004

Optimization Of A Skewed Logistic Distribution With Respect To The Kolmogorov-Smirnov Test, James Charles Finney

LSU Doctoral Dissertations

The four-parameter kappa distribution (Hosking 1994) was analyzed with respect to the various possible shapes of the probability density function. The general form for the cumulative distribution function when both h and k are non-zero is: F(x) = { 1 - h [ 1 - k ( x - ξ ) / α ]1/k }1/h. The parameters h and k work together to define the function's shape, ξ affects location, and α is the scale parameter. A method of selecting parameters to minimize the Kolmogorov-Smirnov test statistic, D, was developed. The technique was first described for the …

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Development Of Chicken Polyclonal And Mouse Monoclonal-Based Enyzyme Immunoassays For The Detection Of Β-Cyclocitral In Catfish Pond Water, Cate Nakaweesa Munene Jan 2004

Development Of Chicken Polyclonal And Mouse Monoclonal-Based Enyzyme Immunoassays For The Detection Of Β-Cyclocitral In Catfish Pond Water, Cate Nakaweesa Munene

LSU Doctoral Dissertations

The Catfish industry faces a problem of off-flavors due to odorous compounds produced by cyanobacteria and blue-green algae. Beta-Cyclocitral imparts a hay-woody odor to pond water and fish tissues. At present there are no reliable pond treatment methods available to control these off-flavors. To monitor the levels of this compound for quality control, rapid, sensitive and inexpensive methods are needed. The major goal of this study was to develop enzyme-linked immunoflow assays based on monoclonal and polyclonal antibodies that are specific and sensitive enough to detect beta-cyclocitral in catfish pond water. Beta-Cyclocitral-PPD conjugate was prepared and used to immunize two …

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Effective Developmental Leadership: A Study Of The Traits And Behaviors Of A Leader Who Develops Both People And The Organization, Michael Stanley Wilson Jan 2004

Effective Developmental Leadership: A Study Of The Traits And Behaviors Of A Leader Who Develops Both People And The Organization, Michael Stanley Wilson

LSU Doctoral Dissertations

This study identified the traits and behaviors of an effective developmental leader”-one whose primary focus is the development of the people and the organization he or she lead. The study determined the traits and behaviors of a leader who posses an effective developmental orientation towards people. The research incorporated both qualitative and quantitative research methodologies. Data was collected using both open ended questions and Likert-type scaled instruments. This data was analyzed using both statistical techniques and expert panels. The results of this study yielded six identified traits and seven identified behaviors of a developmental leader. A developmental leader was found …

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The Diagnosis Of Dementia In Persons With Mental Retardation: Validating Methods Of Assessment, Joanne Bielecki Jan 2004

The Diagnosis Of Dementia In Persons With Mental Retardation: Validating Methods Of Assessment, Joanne Bielecki

LSU Doctoral Dissertations

The usual assessment instruments for the diagnosis of dementia are often difficult to use among individuals with mental retardation. This study investigates whether a modified method based on Visser et al. (1997) can identify a dementing process. Ninety individuals diagnosed with severe and profound mental retardation were studied. One half of the participants were diagnosed with Down's syndrome. The participants were equally assigned to one of three groups based on perceived risk of dementia. A differential prevalence design was used. Both cross sectional and longitudinal analyses were utilized in this study. Results indicate that the Visser et al. (1997) method …

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An Integrative Model Of Clients' Decision To Adopt An Application Service Provider, Yurong Yao Jan 2004

An Integrative Model Of Clients' Decision To Adopt An Application Service Provider, Yurong Yao

LSU Doctoral Dissertations

Application Services Providers (ASPs) exploit the economics of delivering commercial off-the-shelf software over the Internet to many dispersed users, but the decision-making process to adopt the ASP business model can be complex requiring a comprehensive consideration of various factors. As a new form of outsourcing, the ASP business model differs from traditional outsourcing models with respect to the attributes associated with vendors, clients, and applications. These differences are expected to demand decision models that are distinct from those in the traditional IS outsourcing. In this study, an integrative model for ASP adoption that incorporates economic determinants, strategic determinants, and social …

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Ceria-Zirconia Oxide High Temperature Desulfurization Sorbent, Kwang Bok Yi Jan 2004

Ceria-Zirconia Oxide High Temperature Desulfurization Sorbent, Kwang Bok Yi

LSU Doctoral Dissertations

High temperature desulfurization of highly reducing coal-derived gases using ceria and ceria-zirconia sorbents is the primary object of this dissertation research. If H2S concentration is reduced to less than 1 ppmv the product gas may be used with fuel cells and downstream catalytic process. CeO2 is reduced to a non-stoichiometric oxide, which is superior to CeO2 in removing H2S. Moreover, ZrO2 addition to CeO2 to form a solid solution, Ce1-xZrxO2, increases the reducibility of CeO2. This should also result in improved desulfurization performance. Pure CeO2 and sorbents, both commercially available and prepared at LSU, were tested. XRD analysis indicated that …

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Leptin In Horses: Influences Of Body Condition, Gender, Insulin Insensitivity, Feeding, And Dexamethasone, Joshua Allen Cartmill Jan 2004

Leptin In Horses: Influences Of Body Condition, Gender, Insulin Insensitivity, Feeding, And Dexamethasone, Joshua Allen Cartmill

LSU Doctoral Dissertations

The experiments described herein were designed to answer questions that arose from initially attempting to determine whether treatment with dexamethasone increased concentrations of leptin in geldings. Dexamethasone treatment did in fact increase leptin concentrations in mares, geldings, and stallions. Additional experiments were designed to determine leptin's interaction, not only with the adrenal axis, but with the thyroid axis, the growth hormone/insulin-like growth factor-1 axis, as well as glucose and insulin metabolism in geldings, mares, and stallions. During the course of these experiments, differences in leptin concentrations in the horse were attributed to degree of body condition, gender, and feeding time. …

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Modeling The Effects Of Rainfall Intensity And Deep Chiseling On Infiltration And Runoff Within Drainmod For Alluvial Soils, Daniel Nyabiba Moriasi Jan 2004

Modeling The Effects Of Rainfall Intensity And Deep Chiseling On Infiltration And Runoff Within Drainmod For Alluvial Soils, Daniel Nyabiba Moriasi

LSU Doctoral Dissertations

Accurate hydrologic models are needed to aid engineers and researchers design, install and evaluate efficient and cost-effective agricultural water management systems to reduce risks associated with food production, and to reduce soil erosion and water pollution. One model used for the alluvial soils of Louisiana is DRAINMOD. This model does not accurately predict infiltration and runoff for the crusting-prone alluvial soils of Louisiana. The main goal of this study was to modify the current DRAINMOD model to incorporate the effects of rainfall intensity and deep chiseling to improve its estimation of infiltration and surface runoff. The second goal was to …

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Investigation Of Structure-Property Relationships Of Heavy-Fermion Materials, Robin Macaluso Jan 2004

Investigation Of Structure-Property Relationships Of Heavy-Fermion Materials, Robin Macaluso

LSU Doctoral Dissertations

This work focuses on how local structural features influence large effective masses, magnetism, and superconductivity that are yet to be understood in heavy-fermion materials. Three sets of structurally-related materials are discussed in light of dimensionality, layering effects, choice of transition metal, coordination, and structural distortions: LnnMIn3n+2 (Ln = La, Ce; n = 1, 2, ‡; M = Co, Rh, Ir), CePdGa6, and Ce2PdGa12, and CeNiSb3. The LnnMIn3n+2 (n = 1, 2, ‡; Ln = La, Ce; M = Rh, Ir) intergrowth homologous series presents a unique opportunity to study structure-property relationships. LnnMIn3n+2 (Ln = La, Ce; n = 1, 2; …

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Mothering Modes: Analyzing Mother Roles In Novels By Twentieth-Century United States Women Writers, Preselfannie Whitfield Mcdaniels Jan 2004

Mothering Modes: Analyzing Mother Roles In Novels By Twentieth-Century United States Women Writers, Preselfannie Whitfield Mcdaniels

LSU Doctoral Dissertations

For this dissertation, the following novels have been chosen as examples of the many issues that are involved in mothering in United States society: Chapter 1: Dorothy Allison’s Bastard Out of Carolina and Toni Morrison’s Beloved, Chapter 2: Toni Morrison’s Song of Solomon and Dorothy West’s The Wedding, Chapter 3: Amy Tan’s The Kitchen God’s Wife and Christina García’s Dreaming in Cuban, and Chapter 4: Betty Smith’s A Tree Grows in Brooklyn and Paule Marshall’s Brown Girl, Brownstones. For this study, the term “mothering” is specifically related to the rearing of children by the female parent. Rearing is defined as …

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Integration Of Management Tactics For The Rice Water Weevil Lissorhoptrus Oryzophilus Kuschel With Particular Emphasis On Use Of Plant Resistance (Tolerance), Li Zou Jan 2004

Integration Of Management Tactics For The Rice Water Weevil Lissorhoptrus Oryzophilus Kuschel With Particular Emphasis On Use Of Plant Resistance (Tolerance), Li Zou

LSU Doctoral Dissertations

Studies were conducted to test the hypothesis, significant benefits can be achieved for the management of rice water weevil, Lissorhoptrus oryzophilus Kuschel, by the use of rice varieties with low levels of host plant resistance coupled with the judicious use of cultural practices and insecticides. Tolerant traits of a current commercial variety of rice, "Bengal", was manifested consistently over multiple years. Study on rice growth as effected by weevil injury showed that pruning of root systems by larvae of weevil resulted in a decrease in tiller number and shoot biomass of rice plants in the vegetative stage of growth. Yield …

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Site-Directed Mutagenesis Studies Of E. Coli Biotin Carboxylase, Valerie Melissa Sloane Jan 2004

Site-Directed Mutagenesis Studies Of E. Coli Biotin Carboxylase, Valerie Melissa Sloane

LSU Doctoral Dissertations

Acetyl-CoA carboxylase is an essential enzyme in all plants, animals, and bacterie, where it catalyzes the committed step in fatty acid synthesis. The Escherichia coli version of the enzyme has three functional components that dissociate readily: biotin carboxylase, carboxyltransferase, and a biotin carboxyl carrier protein. The biotin carboxylase component catalyzes the ATP-dependent carboxylation of biotin, using bicarbonate as the carboxylate source. Biotin carboxylase is a member of a functionally diverse superfamily of proteins known as the ATP-grasp enzymes. In the first study, four residues of biotin carboxylase, Lys 116, Lys 159, His 209, and Glu 276, were selected for site-directed …

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The Effect Of The Implicit Theory Of Integrity On An Internal Auditor's Asessment Of Management Fraud Risk, Stephanie F. Watson Jan 2004

The Effect Of The Implicit Theory Of Integrity On An Internal Auditor's Asessment Of Management Fraud Risk, Stephanie F. Watson

LSU Doctoral Dissertations

The purpose of this research project is to determine whether the implicit theory of integrity, a theory from the social psychology literature that predicts how social judgments and decisions are made, can explain internal auditors’ decisions. The implicit theory (Dweck and Leggett 1988) states that there are two types of people: (1) entity theorists and (2) incremental theorists. Entity theorists form strong inferences from observed behavior that are used to predict future behavior. Incremental theorists, on the other hand, do not infer characteristics from behavior, and therefore, do not attempt to predict future behavior. In an internal auditing context, the …

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The Individual, The Source, And The Context: An Investigation Of Antecedents And Consequences Of Feedback Seeking Behavior, Robin Anne Cheramie Jan 2004

The Individual, The Source, And The Context: An Investigation Of Antecedents And Consequences Of Feedback Seeking Behavior, Robin Anne Cheramie

LSU Doctoral Dissertations

In the last twenty years, researchers have examined why individuals may proactively seek performance feedback in the workplace. Since Ashford and Cummings' (1983) seminal article, situational and individual difference variables have predominantly been examined to predict how often employees will seek feedback. One situational variable that has been researched but not sufficiently examined is the feedback context. A public or a private feedback context considers whether the presence of an audience inhibits or facilitates feedback seeking behaviors. This dissertation explores the role of the feedback context by developing a conceptual model to determine how frequently employees may seek feedback in …

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Class Groups And Norms Of Units, Costel Ionita Jan 2004

Class Groups And Norms Of Units, Costel Ionita

LSU Doctoral Dissertations

Our object of study is relative quadratic extensions of algebraic number fields. In 'Class Number Parity', the authors P.E. Conner and J. Hurrelbrink study in detail the cases of real and CM-extensions. In this paper we generalize some of the results without any assumption on the type of the relative quadratic extension.

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From Oklahomans To "Okies": Identity Formation In Rural California, Toni Ann Alexander Jan 2004

From Oklahomans To "Okies": Identity Formation In Rural California, Toni Ann Alexander

LSU Doctoral Dissertations

Throughout the twentieth century difficult economic circumstances have resulted in reduced employment opportunities. In-migrants have long borne the brunt of these limitations, facing open hostilities from residents who felt that these "outsiders" were undeserving of employment and social services. Within the context of the 1930s Depression in the Central Valley of California, such negative public sentiment was often directed at "Okies," the 315,000 former residents of the "Western South" who crossed the California state line in search of employment in the agricultural fields of the Golden State. In this dissertation, I examine the changing conceptualizations of Okie identity throughout the …

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"I Pray It Happens In My Lifetime": The Life History Of Clara Byrd Glasper, A Black Woman Educator Fighting For Educational Equality, Carol Marie Miller Jan 2004

"I Pray It Happens In My Lifetime": The Life History Of Clara Byrd Glasper, A Black Woman Educator Fighting For Educational Equality, Carol Marie Miller

LSU Doctoral Dissertations

The purpose of this study is to write the life history of a black woman educator is order to enhance our understandings of educational activism and social change in the Deep South. African American educators have been marginalized and under represented in their communities despite the roles they have played in ameliorating educational inequalities. The life history of seventy-year-old Clara Byrd Glasper’s activism as a black woman educator is one example. Life history, as a method of research, reveals an individual’s life experiences from their perspective and provides the appropriate methodology to explore the following research questions: In the context …

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Development Of A Predictive Model For Student-Athlete Retention And Graduation At Louisiana State University, Mary Allyn Boudreaux Jan 2004

Development Of A Predictive Model For Student-Athlete Retention And Graduation At Louisiana State University, Mary Allyn Boudreaux

LSU Doctoral Dissertations

The National Collegiate Athletic Association through its member institutions has implemented academic standards governing initial athletic eligibility and has led reform initiatives tying the ability to compete athletically to student-athlete retention and graduation. Louisiana State University (LSU), like many Division I institutions, admitted its scholarship athletes using these initial eligibility standards as a minimum qualification for admission. However, as NCAA requirements have become less stringent, the admissions requirements at LSU have increased. Concerns about the retention and graduation of student-athletes and an increasing gap between the academic credentials of the student body and student-athletes led administrators to question the wisdom …

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