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1999

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The Role Of Trait And State Anxiety In Semantic Network Organization Of Information Related To Current Concerns., Gretchen Joan Diefenbach Jan 1999

The Role Of Trait And State Anxiety In Semantic Network Organization Of Information Related To Current Concerns., Gretchen Joan Diefenbach

LSU Historical Dissertations and Theses

In the first study of this report empirically-derived cognitive networks were established for high trait test anxious participants ( n = 28) and low trait test anxious participants (n = 25) during periods of both high and low exam stress. Cognitive networks were created using the Pathfinder algorithm, which transforms pair-wise word similarity ratings into an associative network. Information included in the networks pertained to the following word categories: testing situations, positive performance evaluation, and negative performance evaluation. Contrary to predictions, there was no effect of either trait or state test anxiety on semantic network organization. These findings fail to …

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The Effect Of *Modeling And Tempo Gradations As Practice Techniques On The Performance Of High School Instrumentalists., Paul Thomas Henley Jan 1999

The Effect Of *Modeling And Tempo Gradations As Practice Techniques On The Performance Of High School Instrumentalists., Paul Thomas Henley

LSU Historical Dissertations and Theses

The purpose of this study was to examine the effect of modeling conditions and tempo gradations as practice techniques on the performance of high school instrumentalists. Specifically, the independent variables of this study were model versus no model; and steady increase of tempo versus performance speed tempo versus alternating (slower and faster) tempos. Subjects (N = 60) were high school wind instrumentalists from the Midwest and the South. Subjects sight-read an etude, practiced the same etude six times using one of six distinct practice conditions, which were combinations of the two independent variables, and performed a posttest on the same …

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Analysis Of *Policy Alternatives In The Implementation Of A Coastal Nonpoint Pollution Control Program For Agriculture., Hugo Cardona Castillo Jan 1999

Analysis Of *Policy Alternatives In The Implementation Of A Coastal Nonpoint Pollution Control Program For Agriculture., Hugo Cardona Castillo

LSU Historical Dissertations and Theses

Agriculture has been singled out as one of the major nonpoint sources of water pollution. To identify alternative policy tools for the implementation of a non-regulatory approach to comply with the Coastal Nonpoint Pollution Control Program (CNPCP) required by The Coastal Zone Act Reauthorization Amendments of 1990, policy makers need to determine factors that may influence producers' willingness to adopt proposed Best Management Practices (BMPs). Neoclassical economic concepts of utility maximization on the part of agricultural producers constitutes the theoretical background in this study, but it is enhanced with the incorporation of a well proved set of theoretical tools based …

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A Rate Dependent Anisotropic Damage Model For Metal Matrix Composites At Elevated Temperatures., Babur Deliktas Jan 1999

A Rate Dependent Anisotropic Damage Model For Metal Matrix Composites At Elevated Temperatures., Babur Deliktas

LSU Historical Dissertations and Theses

A rate dependent plastic and anisotropic damage model is developed for a metal matrix composite (MMC) system at elevated temperatures. The developed constitutive model will enable one to predict the inelastic response of the composite material at different loading rates at elevated temperatures. The formulation is thermodynamically based using the concept of internal state variables. Two sets of internal variables are introduced into the thermodynamic potential. One set characterizes the viscoplastic behavior of the ductile matrix and its effect on the overall inelastic response of the composite while the second set characterizes the damage for each constituent of the composite. …

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Crossing Over: An Oral History Of The Desegregation Experience Of Public School Personnel In East Baton Rouge Parish, Louisiana., Douglas Raymond Davis Jan 1999

Crossing Over: An Oral History Of The Desegregation Experience Of Public School Personnel In East Baton Rouge Parish, Louisiana., Douglas Raymond Davis

LSU Historical Dissertations and Theses

The Fall of 1970 marked an important change in the East Baton Rouge Parish Public School System. In the previous 1969--70 school year, only three thousand out of twenty-three thousand African American children in the district attended school with White children. In 1970, the number rose to nearly nineteen thousand. In addition, for the first time, school personnel, busses, and extra curricular activities were desegregated. Over six-hundred teachers began the 1970 school year teaching in schools that were previously and predominantly another race. This event, known as the "cross-over," is the subject of this dissertation. The historical study of the …

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Detecting Simulated Memory Impairment After Closed Head Injury: Validation Of The Word Completion Memory Test (Wcmt)., Robin Colleen Hilsabeck Jan 1999

Detecting Simulated Memory Impairment After Closed Head Injury: Validation Of The Word Completion Memory Test (Wcmt)., Robin Colleen Hilsabeck

LSU Historical Dissertations and Theses

Simulation is the intentional production or exaggeration of psychological symptoms (cognitive and/or emotional) in an effort to obtain secondary gain (e.g., avoiding work, obtaining financial compensation). While most current simulation measures can successfully identify obvious attempts at faking cognitive deficits (e.g., memory impairment), they have been much less successful at identifying more sophisticated simulators. The Word Completion Memory Test (WCMT) is the first measure specifically developed to detect more sophisticated attempts at feigning memory impairment. Unlike other simulation detection measures, a sophisticated coaching methodology was used in developing the WCMT. An initial validity study suggested the WCMT is a valid …

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Synthesis, Characterization, And Applications Of Chiral Polymeric Surfactants In Micellar Capillary Electrophoresis., Crystal Williams Harrell Jan 1999

Synthesis, Characterization, And Applications Of Chiral Polymeric Surfactants In Micellar Capillary Electrophoresis., Crystal Williams Harrell

LSU Historical Dissertations and Theses

Chirality is a characteristic of many synthetic and biological organic compounds. This property is particularly true in the pharmaceutical industry where a large number of drugs are marketed as racemates. One method used to monitor optical purity is capillary electrophoresis (CE). Chiral separation using CE is achieved by use of an immobilized chiral phase or through a chiral selector mobile phase additive. It is demonstrated and determined that chiral polymeric surfactants are more suitable for chiral separation in electrokinetic capillary chromatography (EKC) than conventional micelles. Polymeric surfactants eliminate the dynamic equilibrium that occurs in normal micelles, are more stable, rigid, …

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Asphalt Pavement Fatigue Cracking Modeling., Yongqi Li Jan 1999

Asphalt Pavement Fatigue Cracking Modeling., Yongqi Li

LSU Historical Dissertations and Theses

Fatigue is a major structural distress that leads to a reduction in the serviceability of asphalt pavements. In a mechanistic pavement design, asphalt fatigue cracking is considered as one of the three design criteria along with rutting and low-temperature associated cracks. The successful application of this design method to practice thus relies on a reliable crack prediction model. Most existing crack prediction models are based on the results of laboratory beam fatigue tests. Beam tests are not adequate because they can't realistically simulate the propagation of a crack in an asphalt pavement layer. This research studied the asphalt cracking through …

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Intervention Implementation And Intervention Outcomes For Teenage Mothers In School -Based Treatment For Social And Academic Problems., Cherri Edenfield Penton Jan 1999

Intervention Implementation And Intervention Outcomes For Teenage Mothers In School -Based Treatment For Social And Academic Problems., Cherri Edenfield Penton

LSU Historical Dissertations and Theses

The effects of a strong treatment package, comprised of 2 types of performance feedback plus incentives, on the social behavior and academic progress of 9 minority teenage mothers attending an inner-city high school, was investigated. Treatment integrity of their teachers and parents was also evaluated. Research shows that academic deficits and conduct problems are strong correlates of early pregnancy, Many students experience academic failure and related disciplinary problems because no one monitors their behavior. In this study, a comprehensive treatment was developed to be used across settings (home, school and a school-based health clinic) and across treatment agents (parent, teacher, …

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Mechanisms Of First Language Forgetting., Ludmila Isurin Jan 1999

Mechanisms Of First Language Forgetting., Ludmila Isurin

LSU Historical Dissertations and Theses

The present research explored the processes and mechanisms of first language forgetting from linguistic and psychological perspectives. Two studies, one---a case study, another---a controlled experimental study, yielded evidence on L1 loss. The case study involved a 9 year old Russian girl who was adopted by an American family, brought to the US and completely taken out of a Russian-speaking environment. Over the course of one year, changes in L1 morphology, syntax, and vocabulary were investigated using various tasks, e.g. picture description, picture naming, story telling. Data on L1 retention, L2 acquisition, and reaction time were gathered. The results of the …

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Characterization Of Pavement Layer Interfaces., Stefan Anton Romanoschi Jan 1999

Characterization Of Pavement Layer Interfaces., Stefan Anton Romanoschi

LSU Historical Dissertations and Theses

The two primary objectives of the research were to derive constitutive models for the interfaces of flexible pavement layers, and to determine the effects of the mechanical properties of interfaces on pavement performance. A simple constitutive model was derived for the asphalt-to-asphalt interfaces using data provided by laboratory direct shear tests at several normal load levels. In the model, the shear displacement and stress are proportional until the shear strength of the interface is reached. After failure, a friction model represents realistically the interface condition. The test results proved that, if a tack-coat is not applied between layers, the shear …

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Psychometric And Historical Predictors Of Behavior In Incarcerated Female Juvenile Offenders: A Longitudinal Analysis., Michael P. Santa Maria Jan 1999

Psychometric And Historical Predictors Of Behavior In Incarcerated Female Juvenile Offenders: A Longitudinal Analysis., Michael P. Santa Maria

LSU Historical Dissertations and Theses

The purpose of the current study was to investigate whether factors known to predict recidivism and future misbehavior are useful in predicting behavior of offenders while incarcerated. This study examined the population of all incarcerated and recently released female juvenile offenders in Louisiana (n = 211). Predictive equations were developed based on demographic, offense-related, and psychological test variables including: age, race, age at first offense, number of prior offenses, history of a violent offense, history of physical abuse, history of sexual abuse, history of alcohol abuse, history of drug abuse, IQ, and Test of Adult Basic Education (TABE) Reading Comprehension …

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The Effects Of Problem Constraint Analysis On Analogical Transfer., Ann Elizabeth Speed Jan 1999

The Effects Of Problem Constraint Analysis On Analogical Transfer., Ann Elizabeth Speed

LSU Historical Dissertations and Theses

One primary goal of education, either in the schools or in a training situation, is for the students to use the information learned in the classroom in other relevant situations. This goal of transfer of training proves difficult to attain. Several manipulations used in the literature have increased transfer (Catrambone & Holyoak, 1989; Gick & Holyoak, 1980,1983). However, all of these manipulations are not feasible for real-world use. The current experiments were designed to increase the ecological validity of manipulations and stimuli used previously by providing feedback to participants about their initial solution to a problem. Interestingly, the feedback manipulation …

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Measurement Of Inclusive Charm Production In Two -Photon Collisions At Lep., Alan L. Stone Jr Jan 1999

Measurement Of Inclusive Charm Production In Two -Photon Collisions At Lep., Alan L. Stone Jr

LSU Historical Dissertations and Theses

The cross section of inclusive charm production in two-photon collisions se+e-→e +e-cc&d1;X is measured at the Large Electron Positron (LEP) collider at the European Center for Nuclear and Particle Physics (CERN). The data was obtained with the L3 detector at the center-of-mass energy of 91 GeV (LEP1) and for the first time at the center-of-mass energies from 130--183 GeV (LEP2). Charmed hadrons are identified by electrons and muons from semileptonic decays. The measured cross section agrees with next-to-leading order (NLO) QCD calculations. The direct process gg→cc&d1; is found to be insufficient to describe the data. The measured cross section values …

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An Examination Of The Spaced-Retrieval Technique: A Method To Improve Memory In Older Adults With Probable Alzheimer's Disease., Shannon S. Simmons-D'Gerolamo Jan 1999

An Examination Of The Spaced-Retrieval Technique: A Method To Improve Memory In Older Adults With Probable Alzheimer's Disease., Shannon S. Simmons-D'Gerolamo

LSU Historical Dissertations and Theses

In this study, we used the spaced-retrieval technique as a mnemonic device for those persons with cognitive deficits such as probable Alzheimer's Disease. Three main goals of this research were to gain insight into the long-term effectiveness of the spaced-retrieval technique, examine ways to enhance the overall effectiveness of the spaced-retrieval technique, and adapt spaced-retrieval for applied use in real-world settings. Results indicated that participants did not show savings-in-relearning over a two year follow-up span, but did show it over a one year and six month span. Results provided modest evidence of the effects of exposure to the target-item orientation …

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Rhetoric And Institutional Environments: The Legitimation Of Higher Education In Twentieth Century America., Thomas J. St. Antoine Jan 1999

Rhetoric And Institutional Environments: The Legitimation Of Higher Education In Twentieth Century America., Thomas J. St. Antoine

LSU Historical Dissertations and Theses

This dissertation seeks to discover and analyze the divergent ways that higher education has been legitimated by American discourse in the twentieth century. Institutions of higher learning have been able to survive and flourish because they have been seen as essential to the health of a democracy, of a free-market economy, and of religious institutions. However, the explanations for such legitimacy have been diverse and varied. Bormann's fantasy theme analysis can account for the values and beliefs that form the institutional environments shaping and legitimating organizations such as colleges and universities. Fantasy themes expressed in popular discourse are expressions of …

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The Effects Of Team-Member Attributes On Team Performance: A Model Of Individual Contribution To Team Performance., Joe J. Yum Jan 1999

The Effects Of Team-Member Attributes On Team Performance: A Model Of Individual Contribution To Team Performance., Joe J. Yum

LSU Historical Dissertations and Theses

Although team composition is one of the most frequently studied topics in team research, much remains unknown regarding what attributes to look for when selecting team-members and how these attributes affect team performance. The purpose of this study was to present and to test a theoretical model that depicts how individual attributes affect team-member performance and how team-member performance ultimately affects team performance. The proposed model is based on the integration of research on team and individual performance. From a practical standpoint, understanding the relationships among the variables in the proposed model may be important for the selection of employees …

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A Comprehensive Functional Assessment Of The Effects Of Methylphenidate On The Disruptive Behavior Of Children With Severe Mental Retardation., Victoria C. Swanson Jan 1999

A Comprehensive Functional Assessment Of The Effects Of Methylphenidate On The Disruptive Behavior Of Children With Severe Mental Retardation., Victoria C. Swanson

LSU Historical Dissertations and Theses

Methylphenidate (MPH) has proven efficacy with the disruptive behaviors of children with ADHD in regular education settings (Gully and Northup, 1997; Northup et el., 1999; in press). Blum, Mauk, McComas, and Mace (1996) researched the separate and combined effects of behavioral and MPH treatments on the task engagement and disruptive behavior of 3 children with severe to profound mental retardation. This study used a single-subject, multielement or alternating treatment design to assess the separate and combined effects of MPH and behavioral treatments on the performance of 5 children with severe to profound mental retardation. MPH effects were evaluated within and …

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A Novel Approach To Dna Sequencing Employing Near -Ir Fluorescence Detection Coupled With Microscale Reaction Vessels With Capillary Gel Separations., Daryl Clifford Williams Jan 1999

A Novel Approach To Dna Sequencing Employing Near -Ir Fluorescence Detection Coupled With Microscale Reaction Vessels With Capillary Gel Separations., Daryl Clifford Williams

LSU Historical Dissertations and Theses

Electropherograms of oligonucleotides labeled with near-IR fluorescent dyes, separated by capillary gel electrophoresis (CGE) and detected using an ultrasensitive near-IR fluorescence detection system will be presented. A Universal M13 sequencing primer was labeled on the 5' end with a near-IR dye containing an isothiocyanate functional group. Comparison of the on-column detection limits in capillary gel electrophoresis for the near-IR-labeled sequencing primer to that of a visible fluorescein-labeled primer indicated improved sensitivity for the near-IR case. The detection limit was found to be 3.4 x 10-20 moles (SNR = 3) for the near-IR-labeled primer while the on-column detection limit for the …

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Effects Of Repeated Restraint Stress On Tissue Metabolism In Rats., Jun Zhou Jan 1999

Effects Of Repeated Restraint Stress On Tissue Metabolism In Rats., Jun Zhou

LSU Historical Dissertations and Theses

It has been reported that repeated restraint stress (RS), 3 hours/day for 3 days, in rats caused sustained weight loss and a temporary drop in daily food intake with no subsequent compensatory overeating during the post stress period. The hypothesis tested in the present study is that RS causes peripheral tissue metabolism changes which account for the abnormal regulation of body weight and food intake during the post stress period. Adult male Sprague Dawley rats were assigned to control, pair fed (PF) or RS groups. One day after the end of RS, midbrain urocortin mRNA was at control levels in …

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Petroleum Reservoir Simulation Using 3-D Finite Element Method With Parallel Implementation., Husam M. Yaghi Jan 1999

Petroleum Reservoir Simulation Using 3-D Finite Element Method With Parallel Implementation., Husam M. Yaghi

LSU Historical Dissertations and Theses

Modeling fluid flow around wellbores with conventional reservoir simulators is inaccurate because radial flow occurs in the vicinity of the wellbore and these simulators use cartesian coordinates. In this research, we present a more accurate wellbore simulation by incorporating the finite element method (FEM) to simulate the radial flow in the vicinity of the wellbore and interfacing this finite element wellbore model with an existing finite difference method (FDM) reservoir simulator. Although this technique was developed for a vertical well, it could also be used to accurately model a horizontal wellbore. This "hybrid" solution is for three dimensional---triphasic fluid flow …

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The Effects Of Roundhouse Diagram Construction And Use On Meaningful Science Learning In The Middle School Classroom., Robin Eichel Ward Jan 1999

The Effects Of Roundhouse Diagram Construction And Use On Meaningful Science Learning In The Middle School Classroom., Robin Eichel Ward

LSU Historical Dissertations and Theses

This research explored the effects of Roundhouse diagram construction and use on meaningful learning of science concepts in a 6th-grade science classroom. This investigation examined the transformation of students' science concepts as they became more proficient in constructing Roundhouse diagrams, what problems students encountered while constructing Roundhouse diagrams, and how choices of iconic images affected their progress in meaningfully learning science concepts as they constructed a series of Roundhouse diagrams. The process of constructing a Roundhouse diagram involved recognizing the learner's relevant existing concepts, evaluating the central concepts for a science lesson and breaking them down into their component parts, …

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Effect Of An Individualized Treatment Protocol On Competency Restoration In Pretrial Forensic Inpatients., Lisa Jo Bertman Jan 1999

Effect Of An Individualized Treatment Protocol On Competency Restoration In Pretrial Forensic Inpatients., Lisa Jo Bertman

LSU Historical Dissertations and Theses

Competency to stand trial refers to a defendant's ability to consult with his attorney with a reasonable degree of factual and rational understanding of the proceedings against him. If declared incompetent to stand trial by the courts, judicial proceedings are postponed until a defendant's competency deficits are remediated. However, there is a paucity of data on treatment of individuals who have been declared incompetent to stand trial. This study evaluated the effectiveness of individualized treatment on competency restoration in pretrial patients. This investigation improved upon previous group treatment studies, all but one of which were uncontrolled. Treatment groups were: Deficit-Focused …

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Ideomotor Apraxia And Lesion Location: Analysis Of Error Types, Motor Function, And Task Demands., Brenda Hanna-Pladdy Jan 1999

Ideomotor Apraxia And Lesion Location: Analysis Of Error Types, Motor Function, And Task Demands., Brenda Hanna-Pladdy

LSU Historical Dissertations and Theses

Ideomotor apraxia is a disorder of learned skilled movement which typically has been attributed to damage confined predominantly to the frontal and parietal cortical areas within the hemisphere dominant for speech. However, most studies of the anatomical basis of apraxia have relied on case studies or have only approximate lesion localization, and few studies have examined motor performance in relation to lesion location. This study examined the relationship of apraxia severity to lesion location (in both cortical/subcortical dimensions and anterior/posterior dimensions), aphasia, motor performance, and task demands, and identified the existence of subtypes of apraxia with characteristic performance profiles (error …

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Comprehensive Income And Its Relation To Firm Value And Transitory Earnings., Carol Callaway Dee Jan 1999

Comprehensive Income And Its Relation To Firm Value And Transitory Earnings., Carol Callaway Dee

LSU Historical Dissertations and Theses

The distinction between permanent and transitory earnings is important when using accounting earnings to predict future dividends. To the extent that net income includes transitory items, it is less useful in predicting future dividends, and thus, less useful in valuing the firm. If comprehensive income includes more transitory items than net income, it is less useful than net income in valuing the firm. This study contributes to the literature in two ways. First, a definition of permanent earnings is developed that is based on the relation between earnings and expected future dividends. The study illustrates the relation between permanent, transitory, …

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Phylogeography Of Two Loligo Squid (Cephalopoda: Myopsida) In The Gulf Of Mexico And The Northwestern Atlantic Ocean., Scott William Herke Jan 1999

Phylogeography Of Two Loligo Squid (Cephalopoda: Myopsida) In The Gulf Of Mexico And The Northwestern Atlantic Ocean., Scott William Herke

LSU Historical Dissertations and Theses

Based on restriction fragment length polymorphisms (RFLP) in mitochondrial DNA, the population structures of two species of Loligo squid were analyzed in the context of the classic Gulf of Mexico-Atlantic Ocean phylogeographic pattern. A 709-bp fragment of the cytochrome c oxidase (subunit I) gene was amplified by PCR from 356 L. pealei and 431 L. plei. Between latitudes 25°N and 43°N, each species had three common (>5% frequency) haplotypes and many rare haplotypes. Sequence data from all haplotypes indicated that nucleotide divergence between the two species ranged from 13.7 to 15.0% (transition-transversion ratio of ∼1.5; two inferred amino acid …

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Performing Dracula: A Critical Examination Of A Popular Text In Three Sites Of Performance., Jonathan Matthew Gray Jan 1999

Performing Dracula: A Critical Examination Of A Popular Text In Three Sites Of Performance., Jonathan Matthew Gray

LSU Historical Dissertations and Theses

Dracula is a significant example of a popular phenomenon with a long and ongoing history of productive circulation in Anglo-American culture. While theorists of popular culture often use the term "performance" in their explanations of the popularity and meaningful operations of such phenomena in a culture, they do not always provide concrete definitions of what they mean by performance. This study provides an analysis of the roles performance plays in a specific popular culture phenomenon. Identifying Bram Stoker's Dracula as a nexus for a broader cultural activity, this study examines articulations of Dracula in performances and texts that both precede …

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Characterization Of The Microsomal Mixed -Function Oxidase System Of Several Species Of Sea Anemones (Phylum: Cnidaria)., Linda Marie Heffernan Jan 1999

Characterization Of The Microsomal Mixed -Function Oxidase System Of Several Species Of Sea Anemones (Phylum: Cnidaria)., Linda Marie Heffernan

LSU Historical Dissertations and Theses

Several studies have demonstrated detrimental effects of anthropogenic compounds on coral reef communities. These compounds are known to be bioaccumulated rapidly, but eliminated slowly by anthozoans (i.e., corals and sea anemones). The cytochrome P450-dependent mixed function oxidase (MFO) system is the primary pathway for initial oxidation of many hydrophobic exogenous compounds; however, its presence had not been well documented in anthozoans. The studies reported herein show that a functional cytochrome P450-dependent MFO is present in the microsomal fraction of the sea anemones Anthopleura xanthogrammica , A. elegantissima, and Bunodosoma cavernata . The evidence is based on the presence of classical …

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Tourism And Place In Treasure Beach, Jamaica: Imagining Paradise And The Alternative., Michael J. Hawkins Jan 1999

Tourism And Place In Treasure Beach, Jamaica: Imagining Paradise And The Alternative., Michael J. Hawkins

LSU Historical Dissertations and Theses

The tourism production system has been generating images of the Jamaican landscape and culture since the mid-nineteenth century. This system consists of those individuals and corporate entities who produce and market the product itself, including travel writers, airlines, advertising agencies, hotel owners and government agencies; and the people, their culture, and elements of the landscape which are commodified as tourist attractions. The tourist gaze has traditionally focused on an idealized Caribbean landscape. Because of a shift in Western patterns of consumption, the focus of the gaze has shifted to emphasize the culture and people who inhabit the landscape. As the …

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Land -Cover Change Detection For The Tropics Using Remote Sensing And Geographic Information Systems., Jane M. Read Jan 1999

Land -Cover Change Detection For The Tropics Using Remote Sensing And Geographic Information Systems., Jane M. Read

LSU Historical Dissertations and Theses

Changing land-cover in the tropics is a central issue in global change research. This dissertation used Landsat-TM data to examine processes of land-use and land-cover changes for a lowland tropical site in Sarapiqui, Costa Rica. Performances of selected image-processing methods to detect and identify land-cover changes were evaluated. A land-cover time-series from 1960 to 1996 for the site was generated using maps derived from aerial photographs and Landsat-TM classifications. Changes in land-cover from 1986 to 1996 were evaluated using standard landscape indices, and interpreted in terms of their historical context. Dominant changes in the site during this decade included the …

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