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Coastal Lake-Sediment Records Of Prehistoric Hurricane Strikes In Honduras And Turks And Caicos Islands Of The Caribbean Basin, Jason Thomas Knowles Jan 2004

Coastal Lake-Sediment Records Of Prehistoric Hurricane Strikes In Honduras And Turks And Caicos Islands Of The Caribbean Basin, Jason Thomas Knowles

LSU Master's Theses

This study seeks to apply the geological method of paleotempestology to reconstruct past hurricane activities for Central America and the Caribbean. Landfalling hurricanes may deposit distinct overwash sand layers in coastal lake sediments through storm surges and tidal overwash processes that can be dated to establish a chronology of past hurricane strikes. Proxy records from lake-sediment cores were taken for this study in the spring and summer of 2003 from Lake Sophie, Providenciales Island, Turks and Caicos, and from Laguna de Los Micos, Honduras. Loss-on-ignition analysis revealed many changes in the sediment stratigraphies for both sites that appear to represent …

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Evaluation Of A Desktop Computed Radiography System For Imrt Dosimetry, Ines-Ana Jurkovic Jan 2004

Evaluation Of A Desktop Computed Radiography System For Imrt Dosimetry, Ines-Ana Jurkovic

LSU Master's Theses

Different techniques have been developed and used to evaluate dose distribution calculation accuracy and dose delivery reproducibility as a part of patient-specific IMRT QA – e.q. film dosimetry, ionization chambers, and diode arrays. To verify that the calculated dose distribution is delivered accurately during treatment, film dosimetry is usually used. The accuracy and reproducibility of film optical density as an indicator of dose is influenced by several variables, including the chemical processing and scanning conditions. This study investigates the possibility to use a desktop computed radiography (CR) system for patient-specific intensity modulated radiation therapy (IMRT) quality assurance (QA). A study …

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The Potential Impact Of Trade Policy Changes On Caribbean Sugar, Delroy Anthony Armstrong Jan 2004

The Potential Impact Of Trade Policy Changes On Caribbean Sugar, Delroy Anthony Armstrong

LSU Master's Theses

This study of the Caribbean Sugar Industry summarizes its sugar trading activities and evaluates the potential impact of changes in preferential trading arrangements with the European Union (EU) on the six countries that makes up the Sugar Association of the Caribbean, namely: Jamaica, Barbados, Belize, Guyana, St. Kitts-Nevis, and Trinidad & Tobago. The trading policies that govern sugar trade between these countries and developed countries such as the EU, the United States of America (US) and to a limited extent trade among them is discussed. The report briefly describes how the Caribbean sugar industry is organized, including supply and demand …

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The Loss Of Parental Contact: Prevalence And Consequences Experienced Past And Present, Robert A. Wright Jan 2004

The Loss Of Parental Contact: Prevalence And Consequences Experienced Past And Present, Robert A. Wright

LSU Master's Theses

The loss of a parent is a difficult and potentially very upsetting event for a child. Along with the loss of parental contact and the emotional toll, the death, divorce, abandonment, or imprisonment of a parent can also disrupt many on-going facets of a child’s life, including school, social relationships, athletics, and other interests. Despite the potentially devastating nature of parental loss, relatively little is known about the frequency of parental loss or the consequences of this loss. This study examined the prevalence of parental loss and the consequences experienced in both the short and long term. Two separate interview …

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Comparative Analysis Between Different Flood Assessment Technologies In Hazus-Mh, Jennifer Carol Meyer Jan 2004

Comparative Analysis Between Different Flood Assessment Technologies In Hazus-Mh, Jennifer Carol Meyer

LSU Master's Theses

Natural disasters devastate the United States through both economic loss and loss of life. The world wide economic damage that results from natural disasters has more than tripled in the last thirty years. Of these natural disasters, floods are the most chronic and costly disasters, comprising an average $5 billion dollars of damage each year. FEMA has released a new software program called HAZUS-MH, which attempts to capture economic losses caused by flooding before losses occur and predict losses from real-time events. This estimate is accomplished through the coupling of flood hazard modeling with local data. FEMA’s goal is that …

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Media Coverage Of The 2003 Parliamentary Election In The Republic Of Georgia, Baadur Koplatadze Jan 2004

Media Coverage Of The 2003 Parliamentary Election In The Republic Of Georgia, Baadur Koplatadze

LSU Master's Theses

The November 2, 2003, parliamentary election caused a significant political crisis in the Republic of Georgia. During the election campaign, the political parties questioned the desire of the government to carry out a fair election. They blamed President Edward Shevardnadze for fabricating the election. After the election, the opposition parties did not recognize the results and claimed that there were massive fabrications (the number of people who voted was much more than the number of people who were in voters’ list). The public supported this position, and several huge demonstrations demanded the resignation of President Shevardnadze. Two weeks after the …

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Analysis And Evaluation Of A Bioengineered Submerged Breakwater, Matthew Dwain Campbell Jan 2004

Analysis And Evaluation Of A Bioengineered Submerged Breakwater, Matthew Dwain Campbell

LSU Master's Theses

Louisiana's coastline has received national attention due to rapid erosion rates estimated from approximately 60 to 100 square kilometers per year. The disappearance of coastal areas jeopardizes public and private infrastructure, property values, aquatic ecosystems, and standards of living. In order to resolve the erosion problem, innovative solutions have been explored that may improve effectiveness and cost efficiency. This research involves a technology, termed an "oysterbreak," which is a bioengineered submerged breakwater. This structure promotes oysters to form a dense structure that dissipates wave energy. Since the structure is biologically dominated, initial material use is modest. The oysterbreak was evaluated …

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State-Specific Effects Of Withdrawal In Smokers, Carla J. Rash Jan 2004

State-Specific Effects Of Withdrawal In Smokers, Carla J. Rash

LSU Master's Theses

Comparisons of responses to a free-recall task were made in withdrawal and non-withdrawal states of 41 smokers. A 2 x 2 design was used to investigate state-specific learning effects in smokers during nicotine withdrawal using a list of 20 common words. Nicotine withdrawal was defined as a minimum of 12 hours abstinence from smoking. Physiological measures of heart rate and blood pressure were examined for drug-compensatory responses. No significant decreases in physiological responding were found. Additionally, no interaction was found between reported urge and withdrawal. The primary hypothesis regarding state-specific effects on recall was not supported. These findings are to …

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Teaching Elementary Students With Attention-Deficit/Hyperactivity Disorder To Recruit Teacher Attention: Effects On Teacher Praise, On-Task Behavior, And Academic Work, Angie Lynn Pellegrin Jan 2004

Teaching Elementary Students With Attention-Deficit/Hyperactivity Disorder To Recruit Teacher Attention: Effects On Teacher Praise, On-Task Behavior, And Academic Work, Angie Lynn Pellegrin

LSU Master's Theses

Recruitment training and self-monitoring skills have proven to be effective methods of decreasing off-task behavior and increasing work productivity and positive teacher-student interactions. Teaching students to recruit teacher attention provides an opportunity for the teacher to praise the child or to offer instructional feedback. However, research on this topic has not examined its utilization and effectiveness in children diagnosed with Attention-Deficit/Hyperactivity Disorder (ADHD). Using a multiple baseline across subjects design, the present study will examine the effectiveness of training students with ADHD to monitor task progress and recruit teacher attention.

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Effects Of Dietary Protein Level And Fish Meal On Growth And Hormonal Status Of Weaned Dairy Calves, Patricia Terrell Richardel Jan 2004

Effects Of Dietary Protein Level And Fish Meal On Growth And Hormonal Status Of Weaned Dairy Calves, Patricia Terrell Richardel

LSU Master's Theses

Eight weaned Holstein steers approximately 4 mo of age (mean BW = 119.47 ± 2.65 kg) were used in a replicated 4 x 4 Latin square designed experiment to study the effects of protein source and level on performance and anabolic hormonal status of weaned dairy calves. Treatments consisted of two diets containing either 16 or 20 % crude protein (CP) with or without fish meal (FM). Experimental diets were corn silage based with soybean meal (SBM) as the source of ruminal degradable protein and FM as the source of ruminal undegradable protein. The animals were fed their respective diets …

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An Introduction For The Singer To The Solo Vocal Works Of Nigel Butterley With Particular Emphasis On His Works Between 1976 And 2003, Alison Rosemary Mccubbin Jan 2004

An Introduction For The Singer To The Solo Vocal Works Of Nigel Butterley With Particular Emphasis On His Works Between 1976 And 2003, Alison Rosemary Mccubbin

LSU Major Papers

For years, Australian composer Nigel Butterley (b.1935 ) has composed a variety of types of composition for voice which are little-known outside of Australia, but which nonetheless merit consideration and performance. This dissertation is an effort to introduce more performers to his work, and to facilitate future performances of it. Central to any performance of his works is an understanding of his desire to integrate the poetic and textual structures of the original pieces into his own musical setting of those pieces, and in so doing to highlight the themes of the originals. Performers can gain insight into the significance …

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Rapid Pcr In A Continuous Flow Device, Masahiko Hashimoto, Pin Chuan Chen, Michael W. Mitchell, Dimitris E. Nikitopoulos, Steven A. Soper, Michael C. Murphy Jan 2004

Rapid Pcr In A Continuous Flow Device, Masahiko Hashimoto, Pin Chuan Chen, Michael W. Mitchell, Dimitris E. Nikitopoulos, Steven A. Soper, Michael C. Murphy

Faculty Publications

Continuous flow polymerase chain reaction (CFPCR) devices are compact reactors suitable for microfabrication and the rapid amplification of target DNAs. For a given reactor design, the amplification time can be reduced simply by increasing the flow velocity through the isothermal zones of the device; for flow velocities near the design value, the PCR cocktail reaches thermal equilibrium at each zone quickly, so that near ideal temperature profiles can be obtained. However, at high flow velocities there are penalties of an increased pressure drop and a reduced residence time in each temperature zone for the DNA/reagent mixture, that potentially affect amplification …

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Numerical Solution Of Fractional Advection-Dispersion Equation, Zhi Qiang Deng, Vijay P. Singh, Lars Bengtsson Jan 2004

Numerical Solution Of Fractional Advection-Dispersion Equation, Zhi Qiang Deng, Vijay P. Singh, Lars Bengtsson

Faculty Publications

Numerical schemes and stability criteria are developed for solution of the one-dimensional fractional advection-dispersion equation (FRADE) derived by revising Fick's first law. Employing 74 sets of dye test data measured on natural streams, it is found that the fractional order F of the partial differential operator acting on the dispersion term varies around the most frequently occurring value of F=1.65 in the range of 1.4 to 2.0. Two series expansions are proposed for approximation of the limit definitions of fractional derivatives. On this ground, two three-term finite-difference schemes - "1.3 Backward Scheme"having the first-order accuracy and "F.3 Central Scheme"possessing the …

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Study On The Termiticidal Components Of Juniperus Virginiana, Chamaecyparis Nootkatensis And Chamaecyparis Lawsoniana, Yaojian Liu Jan 2004

Study On The Termiticidal Components Of Juniperus Virginiana, Chamaecyparis Nootkatensis And Chamaecyparis Lawsoniana, Yaojian Liu

LSU Master's Theses

Termites cause serious damage to wood and wood products. In recent years, increasing attention has been paid to extractives from naturally decay resistant trees. In this study, we compared the termiticidal and antifungal effects of extractives from Alaska yellow cedar (AYC), Port-Orford cedar (POC), and Eastern red cedar (ERC). Pentane and Hexane-Acetone extractives from YC and POC, and pentane extractives from ERC were most favorable in terms of termite protection among the extractives we got. Weight loss of strips treated with 5000 ppm pentane extractives from Eastern red cedar, was significantly lower than those treated with solutions of pentane extractive …

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A Louisiana Plantswoman: Margie Yates Jenkins, Gayna B. Veltman Jan 2004

A Louisiana Plantswoman: Margie Yates Jenkins, Gayna B. Veltman

LSU Master's Theses

This biographical study of the development of Marge Yates Jenkins into Louisiana's pre-eminent plantswoman examines the issues of culture and regional history, particularly the history of the horticultural industry in Louisiana. It traces how a self-taught botanist overcame the obstacles of gender and post-war depression to become an innovator in the nursery business, experimenting with native plants of the Southeast, as well as exotics imported from as far away as New Zealand. Her experiments and the plants that she introduced to the trade would eventually change the selection of plants used in the landscape industry in the Gulf Coast region. …

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Kinetic Analysis Of Kluyveromyces Marxianus Yeast Strain, Erika Guimaraes Madeira Reeves Jan 2004

Kinetic Analysis Of Kluyveromyces Marxianus Yeast Strain, Erika Guimaraes Madeira Reeves

LSU Master's Theses

This research investigated the growth kinetic parameters (Ks and µmax) of the Kluyveromyces marxianus yeast strain for a batch process under aerobic and anaerobic conditions at 45oC using the Two-Liter Bioflo® 2000 Fermentors and the Orbital Shaker Bed with 250mL flasks (New Brunswick Scientific). This yeast strain was grown in twelve different glucose media concentrations (Anderson et al. 1986), ranging from 200 mg/L to 80,000 mg/L. Several analytical techniques were used, such as COD measurement to determine soluble and total substrate concentrations, TSS and OD measurements to determine biomass formation, HPLC measurements to determine carbohydrate concentrations, and GC measurements to …

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Extreme Precipitation Events In East Baton Rouge Parish: An Areal Rainfall Frequency/Magnitude Analysis, Michelle Marie Russo Jan 2004

Extreme Precipitation Events In East Baton Rouge Parish: An Areal Rainfall Frequency/Magnitude Analysis, Michelle Marie Russo

LSU Master's Theses

Severe rainfall events are one of the most frequent weather hazards in the United States. These events are particularly problematic for the southeastern United States because of its subtropical climate. For these reasons, and because of the recent urban growth in the parish, East Baton Rouge Parish officials are concerned whether the current stormwater drainage system can keep pace with development. As a result, this project evaluated the rainfall frequency/magnitude for parish-wide extreme events and their synoptic forcing mechanisms. To this end, this research mapped parish-wide storms and compared three interpolation techniques. It also compared two methods of areal summation …

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Complexity And Nekton Use Of Marsh Edge Habitats In Barataria Bay, Louisiana, Timothy W. Birdsong Jan 2004

Complexity And Nekton Use Of Marsh Edge Habitats In Barataria Bay, Louisiana, Timothy W. Birdsong

LSU Master's Theses

This study examined the effects of intrahabitat variability on marsh edge use by fishes and decapod crustaceans. The objectives were to (1) identify quantitative measures of habitat complexity that describe the structural design of marsh edge habitats, and (2) examine differences in nekton use between cut-bank and gently sloping marsh edge habitats. The study was conducted in Barataria Bay, Louisiana at 75, 10-m marsh edge study sites. Monthly seining was conducted in fall 2003 and spring 2004 and measures of habitat complexity were recorded at each sample location. Indices of tidal inundation and site exposure to wind and wave action …

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Experimental Validation Of A Smart-Bias Active Magnetic Bearing Controller, Shailesh Pradhananga Jan 2004

Experimental Validation Of A Smart-Bias Active Magnetic Bearing Controller, Shailesh Pradhananga

LSU Master's Theses

Active magnetic bearings (AMBs) are being increasingly employed in the aerospace industry in a variety of devices including compressors, turbines, pumps, and flywheels. One application of great interest to future space missions is the Integrated Power and Attitude Control System (IPACS). The IPACS consists of an arrangement of flywheels that integrates the energy storage and attitude control functions into a single system; thereby, reducing the spacecraft mass, volume, launching cost, and maintenance. Like any energy storage system, flywheels need to be operated with low power losses. AMBs are ideally suited for flywheels because they eliminate mechanical losses (friction). Nevertheless, AMBs …

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Transport And Deposition Of Fluid Mud Event Layers Along The Western Louisiana Inner Shelf, Kristina Anne Rotondo Jan 2004

Transport And Deposition Of Fluid Mud Event Layers Along The Western Louisiana Inner Shelf, Kristina Anne Rotondo

LSU Master's Theses

The western Louisiana inner shelf along the Chenier Plain coast has experienced fluid mud deposition in response to increased fine sediment supplied by the Atchafalaya River since ~1950’s. The goal of this project is to assess the characteristics comprising the sedimentary strata and stratigraphic architecture that result from mud deposition on the inner shelf. Recent time-series cores collected from the inner shelf along the Chenier plain coast show the region is subject to transient fluid mud deposition, leading to high long-term accumulation rates. Sediment cores were collected in May 2001, March and May 2002 from the inner shelf landward of …

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Survivable Multicasting In Wdm Optical Networks, Sateesh Chandra Shekhar Jan 2004

Survivable Multicasting In Wdm Optical Networks, Sateesh Chandra Shekhar

LSU Master's Theses

Opportunities abound in the global content delivery service market and it is here that multicasting is proving to be a powerful feature. In WDM networks, optical splitting is widely used to achieve multicasting. It removes the complications of optical-electronic-optical conversions [1]. Several multicasting algorithms have been proposed in the literature for building light trees. As the amount of fiber deployment increases in networks, the risk of losing large volumes of data traffic due to a fiber span cut or due to node failure also increases. In this thesis we propose heuristic schemes to make the primary multicast trees resilient to …

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Travels In Louisiana: Journeys Into Ethnicity And Heritage By Two Hispanic Groups, Dominica Dominguez Ramirez Jan 2004

Travels In Louisiana: Journeys Into Ethnicity And Heritage By Two Hispanic Groups, Dominica Dominguez Ramirez

LSU Master's Theses

This thesis addresses how the notions of ethnicity and heritage are experienced, negotiated, and displayed by two Hispanic groups in Louisiana. Hispanic identity is a nebulous term anywhere and Louisiana is no exception. In this investigation the two groups- a heritage foundation of descendants of Canary Islanders and descendants of the of the Los Adaes communities- both profess Hispanic heritage, display it, and promote this heritage in divergent ways, with significant differences in the meaning of their heritages. Differences between groups are also reflected in the historical spatial representations of the two groups, with Isleños connecting with a far-away but …

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Modeling Of Cane Sugar Colorant Removal In Packed-Bed Ion Exchange Columns And An Investigation Into Pretreatment Methods, Bruce Malcolm Ellis Jan 2004

Modeling Of Cane Sugar Colorant Removal In Packed-Bed Ion Exchange Columns And An Investigation Into Pretreatment Methods, Bruce Malcolm Ellis

LSU Master's Theses

Cane sugar colorants have been extensively researched but still little is known about their exact compositions. Rather than distinct compounds, they are a mixture of many compounds. Some it is assumed can be classified into the pseudo components that have been defined using gel permeation chromatography, based on molecular weight. The defining of these components has allowed the colorants to be modeled independently, instead of as one lumped color parameter. The measured colored components were modeled using a linear driving force adsorption model, which could be applied in the design process for optimizing the decolorizing capacity of the resins. The …

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Capturing The Ordinary: Russell Lee In Southeastern Louisiana, Brent Mitchell Jan 2004

Capturing The Ordinary: Russell Lee In Southeastern Louisiana, Brent Mitchell

LSU Master's Theses

The photographers who worked for the Farm Security Administration Historical Section from 1935-1942 produced a large body of photographic work that now resides in the Library of Congress. These photographs serve as valuable visual resources for depicting an economically deprived section of America's population during the Great Depression and the Dust Bowl. Some of these photographers, like Walker Evans and Dorothea Lange, are widely recognized for their work, while others remain obscure. Russell Lee falls into the latter category, although he contributed the largest number of captioned photographs to the FSA photographic files. This paper explores Lee's photographic techniques in …

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A Bio-Mems Device For Separation Of Breast Cancer Cells From Peripheral Whole Blood, Juan Feng Jan 2004

A Bio-Mems Device For Separation Of Breast Cancer Cells From Peripheral Whole Blood, Juan Feng

LSU Master's Theses

This work demonstrates the application of Bio-Micro Electro Mechanical System (Bio-MEMS) technology for early breast cancer detection and diagnosis. Early breast cancer detection and diagnosis typically uses conventional mammogram screening followed by biopsy, which can be problematic since mammography can only detect highly calcified tumors greater than 1 cm in size. A micro-device was developed to identify and specifically collect tumor cells of low abundance (1 tumor cell among 107 normal blood cells) from circulating whole blood. By immobilizing anti-EpCAM (Epithelial Cell Adhesion Molecule) antibodies on polymer micro-channel walls by the chemical surface modification of PMMA, breast cancer cells …

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Mesoscopic Simulation Of Abnormal Grain Growth, Rakesh Kumar Behera Jan 2004

Mesoscopic Simulation Of Abnormal Grain Growth, Rakesh Kumar Behera

LSU Master's Theses

Grain growth is the process that takes place during annealing of polycrystalline materials; its major feature is a systematic increase in grain size. Two different types of grain growth can be distinguished: the normal and abnormal grain growth. During normal grain growth, the microstructure exhibits a uniform increase in grain size with time and the grain size distribution follows the log-normal distribution with the grain sizes ranging from 0 - 2.2 times the average grain size (R). On the contrary, when the abnormal grain growth is the dominant mechanism, there are certain grains (abnormal grains) in the microstructure that grow …

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Water-Seeded Rice Response To Clomazone, Christopher Ray Mudge Jan 2004

Water-Seeded Rice Response To Clomazone, Christopher Ray Mudge

LSU Master's Theses

A study was conducted to evaluate rice cultivar tolerance to clomazone impregnated onto urea fertilizer and applied at the rice pegging (PEG) stage. A second study was conducted to evaluate rice injury, rice yield, and weed control with clomazone applied alone or in combination with bensulfuron or halosulfuron impregnated onto urea fertilizer applied at the PEG stage. Comparison treatments for weed control were also included in the study. In addition, a study was conducted to evaluate the safening potential of bensulfuron or halosulfuron applied with clomazone on rice grown hydroponically. In the cultivar tolerance study, rice foliar bleaching was 16 …

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Cox Regression Model, Lindsay Sarah Smith Jan 2004

Cox Regression Model, Lindsay Sarah Smith

LSU Master's Theses

Cox, in 1972, came up with the Cox Regression Model to deal handle failure time data. This work presents background information leading up to the Cox's regression model for censored survival data. The marginal and partial likelihood approaches to estimate the parameters in this model are presented in detail. The estimation techniques of the hazard and survivor functions are explained. All of these ideas are illustrated using data from the Veteran’s Administration lung cancer study.

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Validation Of Pet/Ct Dataset For Radiation Treatment Planning, Rajesh Manoharan Jan 2004

Validation Of Pet/Ct Dataset For Radiation Treatment Planning, Rajesh Manoharan

LSU Master's Theses

PET/CT scans are frequently used for radiation treatment planning (RTP). Our work demonstrates a practical approach for validating the PET/CT dataset for RTP. We tested this QA process on a Reveal HD PET/CT scanner. The phantom used is a TGM2 ISIS QA phantom, a 14 cm acrylic cube with a central bore for object inserts. It has four different built-in inserts for electron density verification. 22Na seeds are inserted into the pinholes at the side of the cube. PET/CT images of the phantom with 22Na seeds are acquired and fused in the scanner Syngo fusion software. Registration of the PET/CT …

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Are We Honestly Studying Malingering?: A Profile And Comparison Of Simulated Suspected Malingerers, Adrianne M. Brennan Jan 2004

Are We Honestly Studying Malingering?: A Profile And Comparison Of Simulated Suspected Malingerers, Adrianne M. Brennan

LSU Master's Theses

Malingering research typically uses analog simulation designs or the differential prevalence design among "real" patients. Both have been criticized for methodological limitations in external and internal validity, respectively. Samples of simulated malingerers were compared to suspected malingerers to examine generalizability of analog findings. Overall results support the use of simulation designs. Furthermore, it was demonstrated that stringent selection of suspected malingerers maintains internal validity of the differential prevalence design. A second focus, to determine if demographic matching of simulated malingerers is necessary, showed that matching on age and race is not necessary.

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