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2003

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Advanced Turbulence Modeling For Industrial Flows, Raymond Michael Jones Jan 2003

Advanced Turbulence Modeling For Industrial Flows, Raymond Michael Jones

LSU Doctoral Dissertations

This dissertation deals with the development of an improved two-equation turbulence model and its application to various flows. Six different conventional turbulence models were initially tested for predicting the flow inside of an unbaffled stirred tank reactor (STR), and the results are compared with experimental LDV data. Each of the models use low Reynolds number corrections. Results indicate that the radial velocity component in the impeller discharge region is overpredicted by each of the models. The tangential velocity component in the impeller discharge region is predicted well by the models, but is underpredicted near the shaft. The low Reynolds number …

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What Might Have Been: Contraception And Religious Liberty, Leslie C. Griffin Jan 2003

What Might Have Been: Contraception And Religious Liberty, Leslie C. Griffin

Scholarly Works

No abstract provided.

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Control Of Transport Dynamics In Overlay Networks, Qishi Wu Jan 2003

Control Of Transport Dynamics In Overlay Networks, Qishi Wu

LSU Doctoral Dissertations

Transport control is an important factor in the performance of Internet protocols, particularly in the next generation network applications involving computational steering, interactive visualization, instrument control, and transfer of large data sets. The widely deployed Transport Control Protocol is inadequate for these tasks due to its performance drawbacks. The purpose of this dissertation is to conduct a rigorous analytical study on the design and performance of transport protocols, and systematically develop a new class of protocols to overcome the limitations of current methods. Various sources of randomness exist in network performance measurements due to the stochastic nature of network traffic. …

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An Evaluation Of Distributed Practice Using Constant Time Delay In The Acquisition Of Sight Words With Children, Kashunda Lynn Williams Jan 2003

An Evaluation Of Distributed Practice Using Constant Time Delay In The Acquisition Of Sight Words With Children, Kashunda Lynn Williams

LSU Master's Theses

Although, distributed practice has been demonstrated to be superior to massed practice for learning, studies examining the degree of distribution needed to obtain this effect remain lacking. This study extends prior research by (1) determining if there is a difference in distributed practice schedules, when the total time to practice remains constant, (2) determining which schedule produces the superior amount of learning, and (3) determining which schedule produces superior retention of learned materials across time. Study participants were general education elementary school students referred for reading assistance. The constant time delay procedure was used to teach the participants sight words. …

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Mental Health Assessment Of Minors In The Juvenile Justice System, Michael Jenuwine, Curtis Heaston, Diane N. Walsh, Gene Griffin Jan 2003

Mental Health Assessment Of Minors In The Juvenile Justice System, Michael Jenuwine, Curtis Heaston, Diane N. Walsh, Gene Griffin

Articles by Maurer Faculty

No abstract provided.

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Using Therapeutic Jurisprudence To Bridge The Juvenile Justice And Mental Health Systems, Michael J. Jenuwine, Gene Griffin Jan 2003

Using Therapeutic Jurisprudence To Bridge The Juvenile Justice And Mental Health Systems, Michael J. Jenuwine, Gene Griffin

Articles by Maurer Faculty

No abstract provided.

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Community Supervision Of Sex Offenders -- Integrating Probation And Clinical Treatment, Michael J. Jenuwine, Ronald Simmons, Edward Swies Jan 2003

Community Supervision Of Sex Offenders -- Integrating Probation And Clinical Treatment, Michael J. Jenuwine, Ronald Simmons, Edward Swies

Articles by Maurer Faculty

No abstract provided.

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Bioavailability And Bioaccumulation Of Sediment-Associated, Desorption-Resistant Fraction Of Polycyclic Aromatic Hydrocarbon Contaminants, Xiaoxia Lu Jan 2003

Bioavailability And Bioaccumulation Of Sediment-Associated, Desorption-Resistant Fraction Of Polycyclic Aromatic Hydrocarbon Contaminants, Xiaoxia Lu

LSU Doctoral Dissertations

This study is directed toward identifying and characterizing the bioavailability of both reversibly sorbed and desorption-resistant fraction of hydrophobic organic contaminants in natural biologically active sediments and the corresponding consequences to prediction, control and regulation of these contaminants. The focus is on polycyclic aromatic hydrocarbons (PAHs) with particular emphasis on phenanthrene and benzo[a]pyrene. A quantity of well-characterized and extensively desorbed sediments was prepared by desorbing the lab-inoculated sediment with an isopropanol and electrolyte solution. This procedure was proved to be a very effective method to prepare sediments containing contaminants largely limited to a desorption-resistant compartment. Accumulation of contaminants in the …

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Myosin Heavy Chain And Physiological Adaptation Of The Rat Diaphragm In Elastase-Induced Emphysema., Dong Kwan Kim, Jianliang Zhu, Benjamin W Kozyak, James M Burkman, Neal A Rubinstein, Edward B Lankford, Hansell H Stedman, Taitan Nguyen, Sanford Levine, Joseph B Shrager Jan 2003

Myosin Heavy Chain And Physiological Adaptation Of The Rat Diaphragm In Elastase-Induced Emphysema., Dong Kwan Kim, Jianliang Zhu, Benjamin W Kozyak, James M Burkman, Neal A Rubinstein, Edward B Lankford, Hansell H Stedman, Taitan Nguyen, Sanford Levine, Joseph B Shrager

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

BACKGROUND: Several physiological adaptations occur in the respiratory muscles in rodent models of elastase-induced emphysema. Although the contractile properties of the diaphragm are altered in a way that suggests expression of slower isoforms of myosin heavy chain (MHC), it has been difficult to demonstrate a shift in MHCs in an animal model that corresponds to the shift toward slower MHCs seen in human emphysema. METHODS: We sought to identify MHC and corresponding physiological changes in the diaphragms of rats with elastase-induced emphysema. Nine rats with emphysema and 11 control rats were studied 10 months after instillation with elastase. MHC isoform …

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Development And Application Of Acousto-Optic Background Correction For Inductively Coupled Plasma Atomic Emission Spectrometry, Jon W. Carnahan, Heather M. Miller, Thomas M. Spudich Jan 2003

Development And Application Of Acousto-Optic Background Correction For Inductively Coupled Plasma Atomic Emission Spectrometry, Jon W. Carnahan, Heather M. Miller, Thomas M. Spudich

Faculty Articles, Papers, and Other Scholarship

In two con gurations, a solid-state acousto-optic (AO) de ector or modulator is mounted in a 0.5 m monochromator for background correction with inductively coupled plasma atomic emission spectrometry (ICP-AES). A fused silica acousto-optic modulator (AOM) is used in the ultraviolet (UV) spectral region applications while a glass AO de ector (AOD) is used for the visible (VIS) region. The system provides rapid sequential observation of adjacent on- and off-line wavelengths for background correction. Seventeen elements are examined using pneumatic nebulization (PN) and electrothermal vaporization (ETV) sample introduction. Calibration plots were obtained with each sample introduction technique. Potable water and …

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Glacial Deposits, Vol. 31, 2002-2003, Department Of Geography-Geology Jan 2003

Glacial Deposits, Vol. 31, 2002-2003, Department Of Geography-Geology

Glacial Deposits

Newsletter of the Department of Geography-Geology

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High Carbon Dioxide Requiring Mutants Of Chlamydomonas Reinhardtti, Steve Vincent Pollock Jan 2003

High Carbon Dioxide Requiring Mutants Of Chlamydomonas Reinhardtti, Steve Vincent Pollock

LSU Doctoral Dissertations

Chlamydomonas reinhardtii is a photosynthetic alga that has the ability to concentrate CO2 around Rubisco to achieve enhanced rates of photosynthesis in a low CO2 environment. This dissertation presents results obtained from the generation and analysis of four high CO2 requiring mutants of C. reinhardtii. The use of reverse genetics is a very powerful tool to dissect out the individual components of metabolic pathways. Two reverse genetics methods were utilized in this study: a random insertional mutagenesis method to discover genes that are required for growth in a low CO2 environment, and a directed mutagenesis approach, RNA interference, to determine …

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Solute Transport In A Porous Medium: A Mass-Conserving Solution For The Convection-Dispersion Equation In A Finite Domain, William Golz Jan 2003

Solute Transport In A Porous Medium: A Mass-Conserving Solution For The Convection-Dispersion Equation In A Finite Domain, William Golz

LSU Doctoral Dissertations

This dissertation considers the proper mathematical description for the physical problem of a miscible solute undergoing longitudinal convective-dispersive transport with constant production, first-order decay, and equilibrium sorption in a porous medium. Initial and input concentrations may be any continuously differentiable functions and the mathematical system is articulated for a finite domain. This domain yields a mass balance which requires Robin (i.e., third-type) boundaries, which describe a continuous flux but a discontinuous resident-concentration. The discontinuity in the resident concentration at the outflow boundary yields an underdetermined system when the exit concentration is not experimentally measured. This is resolved by defining the …

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The Effect Of High Frequency Amplification On Subjective And Objective Benefit With Digital Hearing Instruments, Erica Lynn Fleck Jan 2003

The Effect Of High Frequency Amplification On Subjective And Objective Benefit With Digital Hearing Instruments, Erica Lynn Fleck

LSU Master's Theses

The purpose of the present study was to determine whether amplifying beyond 3 kHz was beneficial to the user, whether the benefit was dependent on degree of loss, and whether subjective data reflected the benefit. Seventeen hearing impaired subjects were binaurally fitted with digital hearing instruments. Qualified subjects were divided into two groups, A and B. Group A had a pure tone average (3,4, and 6 kHz), of 55 dBHL or better. Group B had a pure tone average (3,4, and 6 kHz) greater than 55 dBHL but not exceeding 75 dBHL. Each subject was fit with two conditions (upward …

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Optimization And Automation Of A Thermal Oyster Shucking Process, Daniel Edgar Martin Jan 2003

Optimization And Automation Of A Thermal Oyster Shucking Process, Daniel Edgar Martin

LSU Doctoral Dissertations

Louisiana Gulf Coast oysters (Crassostrea virginica) were subjected to thermal shucking treatments to effect adductor muscle release from both left and right valves. The oysters were instrumented with thermocouples to monitor and record process temperatures in the oysters and on the shell. Following treatment, the oysters were evaluated for relaxation and release of the adductor muscle, meat quality and texture, and for the effect of the treatments on the storage life of the oysters as measured by total microbial plate counts. The treatments of many oysters resulted in a complete release of the adductor muscle from the shell while maintaining …

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Sensory Characteristics Of Flavored Milk Candies, Noemi Raquel Pavon Jan 2003

Sensory Characteristics Of Flavored Milk Candies, Noemi Raquel Pavon

LSU Master's Theses

A natural milk candy, composed mainly of milk powder, has not been commercially sold in the U. S. market. The milk candy we developed contains calcium and other essential nutrients, which make it a potential food supplement for adults and children. This thesis research was designed to characterize sensory properties of flavored milk candies and to determine the consumer sensory profile driving product acceptance and purchase intent. A descriptive trained panel (n=12) developed a lexicon and evaluated 3 milk candies (plain, chocolate, and coffee) in triplicate using a 15-cm line scale. 335 adult consumers evaluated acceptability of appearance, size/shape, texture, …

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Subversive Bodies: Embodiment As Discursive Strategy In Women's Popular Literature Of The Long Eighteenth Century, Phyllis Ann Thompson Jan 2003

Subversive Bodies: Embodiment As Discursive Strategy In Women's Popular Literature Of The Long Eighteenth Century, Phyllis Ann Thompson

LSU Doctoral Dissertations

“Subversive Bodies: Embodiment as Discursive Strategy in Women’s Popular Literature of the Long Eighteenth Century” examines literary representations of the body as strategies of resistance. This study demonstrates that Manley's Secret Memoirs from the New Atalantis, Haywood's Female Spectator, and Burney's Journal and Letters, as well as unpublished receipt books for medicinal and cosmetic preparations, challenge the prevailing masculinist notion of a passive, distinct topography of womanhood and lay the groundwork for a feminist tradition of recognizing the body as an explicit part of experience. Tracing the origins of today's critical perspectives, my study draws on the insights of recent …

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Revisiting The Vast Wasteland, Fred H. Cate, Newton N. Minow Jan 2003

Revisiting The Vast Wasteland, Fred H. Cate, Newton N. Minow

Articles by Maurer Faculty

No abstract provided.

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The Relationship Of Feeding Problems With The Use Of Antiepileptic Medication Among Persons With Severe And Profound Mental Retardation, Rinita B. Laud Jan 2003

The Relationship Of Feeding Problems With The Use Of Antiepileptic Medication Among Persons With Severe And Profound Mental Retardation, Rinita B. Laud

LSU Master's Theses

Epilepsy and/or seizure activity are frequently occurring phenomena and a significant co-morbid condition for persons with severe to profound intellectual disability (Burke, McKee, Pathak, Donahue, Parasuraman & Baltenhorst, 1999). The majority of seizure activity leads to deficits across a number of social, physical,occupational, and personal variables, and if left untreated, may lead to death in these individuals. The treatment of this condition frequently utilizes anti-epileptic medication, but these medications are often associated with a variety of side effects such as dental complications and disturbed gait. Previous researchers have suggested that these side effects may be manifested in forms of maladaptive …

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The Middle Class Fourth Amendment, Craig M. Bradley Jan 2003

The Middle Class Fourth Amendment, Craig M. Bradley

Articles by Maurer Faculty

No abstract provided.

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Abundance Trends And Environmental Habitat Usage Patterns Of Bottlenose Dolphins (Tursiops Truncatus) In Lower Barataria And Caminada Bays, Louisiana, Cara Edina Miller Jan 2003

Abundance Trends And Environmental Habitat Usage Patterns Of Bottlenose Dolphins (Tursiops Truncatus) In Lower Barataria And Caminada Bays, Louisiana, Cara Edina Miller

LSU Doctoral Dissertations

The paucity of research into the environmental requirements, stock membership, abundance and residency patterns of bottlenose dolphins (Tursiops truncatus) in coastal Louisiana creates difficulty in understanding how local ecosystems and threats (such as fishery interactions, habitat degradation and pollution) affect populations. This study combined fine-scale environmental measurements and photo-identification techniques to describe patterns of habitat usage and abundance of bottlenose dolphins in lower Barataria Basin from June 1999 to May 2002. In addition I investigated the validity and limitations of using mark-recapture models to estimate abundance from cetacean photo-identification data. Bottlenose dolphins were present year-round in a wide range of …

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Literacy As A Performing Art: A Phenomenological Study Of Oral Dramatic Reading, Neva Virginia Cramer Jan 2003

Literacy As A Performing Art: A Phenomenological Study Of Oral Dramatic Reading, Neva Virginia Cramer

LSU Doctoral Dissertations

Based on semiotic, aesthetic response, reader response, and drama in education theories, this phenomenological study seeks to describe the literary experience of text through oral interpretation for middle to high SES, fourth and eighth grade students as compared to Low SES fourth and eighth grade students. Using the research methodology of Moustakas (1994) and data analysis of Teddlie (2000), this study proposes to describe and understand the relation of literary understanding and oral dramatic expression implicit in the descriptive paralinguistic and chronemic patternizations of the oral rendition of text and describe the act of reading as phenomenology. Descriptions of the …

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Improvement Of Kenaf Yarn For Apparel Applications, Ting Zhang Jan 2003

Improvement Of Kenaf Yarn For Apparel Applications, Ting Zhang

LSU Master's Theses

The objectives of the research are to determine the impact of the retting methods and blending percentage on the properties of kenaf fiber as well as the yarns and fabrics that contain kenaf, and to analyze and characterize kenaf fiber and yarns and fabrics that contain kenaf in terms of physical properties, such as tensile strength, elongation, evenness, absorbency and surface characteristics. In this research, kenaf fiber bundles were treated by chemical methods and softened to improve fiber properties. The treated fibers then were blended with cotton having 0, 10%, 25%, and 50% blending ratio and spun into yarns with …

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Reexamination Of The Benefit Of Publicly Funded Private Education For African-American Students In A Post-Desegregation Era, Kevin D. Brown Jan 2003

Reexamination Of The Benefit Of Publicly Funded Private Education For African-American Students In A Post-Desegregation Era, Kevin D. Brown

Articles by Maurer Faculty

No abstract provided.

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Gauss' Method Of Least Squares: An Historically-Based Introduction, Belinda B. Brand Jan 2003

Gauss' Method Of Least Squares: An Historically-Based Introduction, Belinda B. Brand

LSU Master's Theses

This work presents Gauss' justification of the method of least squares, following the treatment given by Gauss himself in "Theoria Combinationis Observationum Erroribus Minimis Obnoxiae," where the main idea is to show that the least squares estimate is the unbiased linear estimate of minimum variance. (Actually, we present Gauss' argument both in his terminology and translated into matrix terminology.) We show how this contrasts with Gauss' earlier justfication in "Theoria Motus Corporum Coelestium" which was based on the assumption of a normal distribution of errors, and yielded the estimate of maximum likelihood. We present as a background the development from …

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The Role Of Dottie In Tracy Letts' Killer Joe: A Production Thesis In Acting, Elizabeth Jane King Jan 2003

The Role Of Dottie In Tracy Letts' Killer Joe: A Production Thesis In Acting, Elizabeth Jane King

LSU Master's Theses

The role of Dottie in Killer Joe by Tracy Letts was selected as a thesis project spring semester of 2003. This thesis is a written record of the actor’s work on the character of Dottie throughout the rehearsal process in the form of a rehearsal journal and a character analysis.

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How Should Sports Organizations Handle A Crisis?: A Focus On Collegiate Institutions, Jamie Mabile Delatte Jan 2003

How Should Sports Organizations Handle A Crisis?: A Focus On Collegiate Institutions, Jamie Mabile Delatte

LSU Master's Theses

The sports industry is big business just like any other big business. Sports organizations face various crises just as corporate America does. A survey of 345 professional and college level sports organizations revealed that 70% of them experienced a crisis in 1997, while the Los Angeles Times reported that 220 college athletes were the focus of criminal charges in 1995. "Sports crises are clearly more frequent today than ever before," said Kathleen Hessert. Mike Paul agrees with that trend based on his research, attributing the trend to poor life choices away from the sport. What is a crisis? A crisis …

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An Experimental Study Of The Applicability Of Flooding Phenomena To The Dynamic Lubrication Method Of Well Control, Rishi R. Ramtahal Jan 2003

An Experimental Study Of The Applicability Of Flooding Phenomena To The Dynamic Lubrication Method Of Well Control, Rishi R. Ramtahal

LSU Master's Theses

This research investigates the feasibility of the dynamic lubrication method of well control as an alternative to conventional stepwise lubrication. The applicability of flooding phenomena to dynamic lubrication and its use in an optimization method to maximize pumping rates was also investigated. An experimental approach was taken in which experiments were conducted in a 13’ long laboratory apparatus designed to emulate the geometry in a wellhead and also in a full-scale research well. The laboratory experiments were conducted to visually investigate the mechanism of flooding and derive a flooding correlation applicable to this type of system. The full-scale experiments were …

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Forensic Dentistry: Dental Indicators For Identification, Jennifer Gail Hopper Mcclanahan Jan 2003

Forensic Dentistry: Dental Indicators For Identification, Jennifer Gail Hopper Mcclanahan

LSU Master's Theses

The use of dentition for identification has been well established in the field of forensics. However, dental analysis has been employed primarily for positive personal identification. The purpose of this thesis research is to explore the possibility of using dental characteristics for general profiling of the decedent. Dental characteristics, including caries and dental restorations, were examined in the dentition of 41 modern forensic cases in the LSU FACES Collection. Twenty-one of these cases are positively identified individuals whose remains were donated to the university. The other 20 cases are active forensic cases which have not been identified. The general profiling …

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Arm Crank Power And Hyperammonemia In Respones To L-Aspartic Acid Supplementation, William W. Edwards Jan 2003

Arm Crank Power And Hyperammonemia In Respones To L-Aspartic Acid Supplementation, William W. Edwards

LSU Doctoral Dissertations

PURPOSE: To examine the effect of L-Aspartic Acid (L-Asp) supplementation on short-term arm-crank power (i.e. W·min-1) and exercise-induced hyperammonemia in two gender-specific investigations. METHODS: The male investigation (MALE) used nine highly-trained intercollegiate water polo players (WP) and nine moderately-trained college students (MOD); the female investigation (FEM) used 18 recreationally-trained college students. All exercised to exhaustion on two occasions following counterbalanced double-blind ingestion of 12.5g x 2 of L-Asp or placebo (P). The warm-up phase began at 25 W·min-1 and increased in 25 W·min-1 stages every 30 seconds (constant 100 rpm). Performance began (i.e. the subjects turned …

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