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Comparison Of The Efficiency Of Utilization Of Amino Acids From Intact Protein And Amino Acids In Crystalline Form By Channel Catfish, (Ictaluras Punctatus), Amogh Arun Ambardekar Jan 2004

Comparison Of The Efficiency Of Utilization Of Amino Acids From Intact Protein And Amino Acids In Crystalline Form By Channel Catfish, (Ictaluras Punctatus), Amogh Arun Ambardekar

LSU Master's Theses

Two laboratory feeding trials were conducted to quantify differences in the digestibility and absorption of dietary amino acids provided in intact protein or in purified amino acid mixtures. In the first experiment, 36 channel catfish (346 ± 47 g) were force-fed one of six practical feed ingredients (blood meal, corn meal, fish meal, meat and bone meal, soybean meal or wheat middlings), or a mixture of crystalline amino acids designed to duplicate the amino acid composition of each of the practical ingredients. Apparent digestibility coefficients (ADC) were calculated for 15 amino acids in each practical ingredient and in each amino …

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Assessment Of Shearing Phenomenon And Porosity Of Porous Media Using Microfocus Computed Tomography, Bashar Adeeb Alramahi Jan 2004

Assessment Of Shearing Phenomenon And Porosity Of Porous Media Using Microfocus Computed Tomography, Bashar Adeeb Alramahi

LSU Master's Theses

Microfocus x-ray computed tomography (μCT) is a powerful non-destructive scanning technique to study the internal fabric of granular materials. In this thesis, μCT was applied to two cases. The first case involves studying the behavior of particles in a triaxial specimen during shearing. Three-dimensional translation and rotation of the particles were tracked throughout the shearing process, and they were used to calculate the local strain distributions. Moreover, the local dilatancy angle distribution was calculated throughout experiment. These distributions were compared to study the changes in the behavior of the particles at different stages of the test. It was noticed that …

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Adaptations By The Locomotor Systems Of Terrestrial And Amphibious Crabs Walking Freely On Land And Underwater, Jennifer Nuss Schreiner Jan 2004

Adaptations By The Locomotor Systems Of Terrestrial And Amphibious Crabs Walking Freely On Land And Underwater, Jennifer Nuss Schreiner

LSU Master's Theses

What are the mechanisms underlying adaptation to load by locomotor systems? Amphibious shore crabs (Carcinus maenas) must routinely accommodate large load changes as they move in and out of water, where buoyancy supports a large percentage of their weight. Terrestrial fiddler crabs (Uca pugilator), aquatic red claw crabs (Sessarma mederi) and aquatic spider crabs (Libinia emarginata) are not routinely exposed to such large load changes. By comparing these species walking underwater and on land, it is possible to gain insight into general principles underlying load accommodation during locomotion. Crabs were videotaped walking freely in a behavioral arena, and a 3-D …

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Species Diversity And Biogeography Of Ants (Hymenoptera: Formicidae) In Louisiana With Notes On Their Ecology, Shawn T. Dash Jan 2004

Species Diversity And Biogeography Of Ants (Hymenoptera: Formicidae) In Louisiana With Notes On Their Ecology, Shawn T. Dash

LSU Master's Theses

Over three decades have passed since the completion of Moser and Blum's (1960) treatment of the ants of Louisiana. This research represents a significant contribution to and update of their work. I report the first-ever comprehensive assessment of the Louisiana Formicid fauna. More than 100 species from 38 genera and eight subfamilies are covered. This faunistic survey gives valuable data of biodiversity and macro/microhabitat selection of ant species. Included are keys to all subfamilies, genera, and species with illustrations photographs, and a regional map for each species.

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Individual And Landscape-Level Effects Of Selective Herbicides, Mowing, And Prescribed Fire On Habitat Quality For Northern Bobwhite (Colinus Virginianus), Charles Lynn Kitts Jan 2004

Individual And Landscape-Level Effects Of Selective Herbicides, Mowing, And Prescribed Fire On Habitat Quality For Northern Bobwhite (Colinus Virginianus), Charles Lynn Kitts

LSU Master's Theses

Northern bobwhite (Colinus virginianus) populations have been declining throughout their range during the past 30 years primarily because of a result of loss of early successional habitat. Specifically, intensive silviculture practices and reduction in the use of prescribed fire has led to this loss. I studied effects of management practices (selective herbicides, mowing, and prescribed fire) on male and covey distribution, and brood-rearing habitats on Jackson-Bienville Wildlife Management Area (JBWMA). Specifically, I used calling surveys to assess landscape characteristics associated bobwhite distribution. I also measured vegetation and arthropod response, using imprinted bobwhite chicks, pitfalls, and sweep nets, to different habitat …

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The Effects Of Non-Focused Extracorporeal Shock Waves On Neuronal Morphology, Function And Analgesia In Horses, David Manuel Bolt Jan 2004

The Effects Of Non-Focused Extracorporeal Shock Waves On Neuronal Morphology, Function And Analgesia In Horses, David Manuel Bolt

LSU Master's Theses

These studies were conducted to elucidate the regional analgesic effect that is observed clinically after treatment of orthopedic disorders with application of extracorporeal shock waves in horses. Regional analgesia after treatment with extracorporeal shock waves presents a concern because it may eliminate protective limiting mechanisms and may place equine athletes with predisposing lesions at risk of sustaining career- or life-ending injuries. Direct percutaneous application of non-focused extracorporeal shock waves to palmar digital nerves in the pastern area of horses resulted in decreased sensory nerve conduction velocities compared with untreated control nerves at 3, 7, and 35 days after treatment. Transmission …

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Numerical And Experimental Investigation Of Transport Processes In Biological Systems, Yimeng He Jan 2004

Numerical And Experimental Investigation Of Transport Processes In Biological Systems, Yimeng He

LSU Master's Theses

This thesis focuses on optimization techniques for transport process during the cryopreservation of biological systems. In the first part of this thesis, a well established shape independent Differential Scanning Calorimeter (DSC) technique was used to measure the dehydration response during freezing of Pacific oyster sperm cells. Volumetric shrinkage during freezing of diploid and tetraploid pacific oyster sperm cell suspensions was obtained at cooling rates of 5 and 20 ˚C/min in the presence of extracellular ice and CPAs. By fitting a model of water transport to the experimentally obtained volumetric shrinkage data the best fit membrane permeability parameters (Lpg and …

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Musical Play Across Ethnic Boundaries In Western Jamaica, Ronald Eric Dickerson Jan 2004

Musical Play Across Ethnic Boundaries In Western Jamaica, Ronald Eric Dickerson

LSU Master's Theses

An ethnography of music, ritual, and festival in western Jamaica, this thesis reports on fieldwork performed in St. Elizabeth and St. James Parishes between June 2002 and January 2003. Featured field sites include rural dancehall events, Kumina performances, Accompong Town's Maroon Heritage Festival, and a Rastafarian music and nutrition festival called "The Supper of Rastafari." Building an account of these and other sites of cultural performance, this study focuses on social connections between groups of participants, traced through poetic, historical, and personal relationships among performers, especially across boundaries of ethnic, stylistic, or religious difference within Jamaica's national cultural identity.

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The Medici, Verrocchio, And San Lorenzo, Evelyn Diane Pell Jan 2004

The Medici, Verrocchio, And San Lorenzo, Evelyn Diane Pell

LSU Master's Theses

This thesis addresses the subject of two Medici family tombs designed by Andrea del Verrocchio for the church of San Lorenzo in Florence. One is the tomb of Cosimo de’ Medici and the other a dual tomb for his sons, Piero and Giovanni de’ Medici. In dealing with this subject, the paper discusses the Medici’s rise to power in Florence, Verrocchio’s career leading up to the tombs, and the important relationship between the Medici and San Lorenzo. The family donated lavishly to the rebuilding of the church and received in return spiritual aid and extraordinary burial sites. Upon first looking …

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Effects Of Spinning-Wing Decoys On Flock Behavior And Hunting Vulnerability Of Local And Migrant Mallards And Other Ducks In Minnesota, Michael L. Szymanski Jan 2004

Effects Of Spinning-Wing Decoys On Flock Behavior And Hunting Vulnerability Of Local And Migrant Mallards And Other Ducks In Minnesota, Michael L. Szymanski

LSU Master's Theses

Waterfowl managers in Minnesota and other states are concerned that increased kill rates associated with the use of spinning-wing decoys (SWDs) may negatively affect local breeding populations of mallards (Anas platyrhynchos). I conducted 219 experimental hunts to evaluate hunting vulnerability of mallards to SWDs during the 2002 duck-hunting season in Minnesota. Following experimental hunts, I asked volunteer hunters to complete post-hunt questionnaires to document their hunting experience, and their use and opinions of SWDs. Finally, I used stable isotope methodology to determine natal origins of HY mallards killed during experimental hunts. I found that mallard flocks (≥1 duck) were 2.91 …

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Isolation Of Aflatoxin-Free Lutein From Aflatoxin-Contaminated Corn, Evdokia Menelaou Jan 2004

Isolation Of Aflatoxin-Free Lutein From Aflatoxin-Contaminated Corn, Evdokia Menelaou

LSU Master's Theses

Lutein (3,3’-dihydroxy-alpha-carotene) has been identified by the Age-Related Eye Disease Study (AREDS) of the National Institute of Health (NIH) as a dietary compound with the ability to delay the onset and/or progression of age-related and/or diabetes-related vision loss. Lutein can also be useful in the prevention of other angiogenic diseases such as breast and colon cancer. Although marigold (Tagetes erecta) flowers are an excellent source of lutein, corn (Zea mays) has been identified as a very economical source of lutein because more value-added products, such as lutein, oil, and zein (known for its anti-microbial and anti-hypertensive activities) can be isolated …

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Activity-Based Anorexia: The Effects Of Resistant Starch, Holly M. Nguyen Jan 2004

Activity-Based Anorexia: The Effects Of Resistant Starch, Holly M. Nguyen

LSU Master's Theses

Anorexia nervosa is the third most common illness among adolescent females. Approximately one half the cases of anorexia nervosa have been suggested to be activity-induced. Various animal studies have been used to study human anorexia, particularly the activity-based anorexia model (ABA). The ABA paradigm consists of diet restriction and liberal access to activity, which ultimately results in a rapid decrease in both body weight and food intake paradoxical to the significant increase in activity. Because resistant starch (RS) has been shown to initiate a lower rise and a steady level of post-prandial blood glucose, it was hypothesized that a diet …

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A Meta-Analysis Of Randomness In Human Behavioral Research, Summer Ann Armstrong Jan 2004

A Meta-Analysis Of Randomness In Human Behavioral Research, Summer Ann Armstrong

LSU Master's Theses

This work analyzes the concept of randomness in binary sequences from three different perspectives: mathematically, statistically, and psychologically and examines the research on human perception of randomness and the question of whether or not humans can simulate random behavior. Generally, research shows that human subjects have great difficulty producing random sequences, even when they are instructed and motivated. We survey some of the literature and present some leading theoretical proposals. Finally, we present some basic statistical tests that can be used to evaluate randomness in a given binary sequence.

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Zooplankton Visualization System: Design And Real-Time Lossless Image Compression, Dattatreya Reddy Tetala Satya Surya Jan 2004

Zooplankton Visualization System: Design And Real-Time Lossless Image Compression, Dattatreya Reddy Tetala Satya Surya

LSU Master's Theses

In this thesis, I present a design of a small, self-contained, underwater plankton imaging system. I base the imaging system’s design on an embedded PC architecture based on PC/104-Plus standards to meet the compact size and low power requirements. I developed a simple graphical user interface to run on a real-time operating system to control the imaging system. I also address how a real-time image compression scheme implemented on an FPGA chip speeds up image transfer speeds of the imaging system. Since lossless compression of the image is required in order to retain all image details, I began with an …

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The Effects Of Internal And External Context Reinstatement On Source Memory, Jeffrey Joseph Starns Jan 2004

The Effects Of Internal And External Context Reinstatement On Source Memory, Jeffrey Joseph Starns

LSU Master's Theses

Memory for attended aspects of an encoded event (item memory) is facilitated when features of the encoding context are reinstated at test, indicating that item and context features are bound together in memory traces (Smith, 1979). The present study investigated whether reinstated contextual features similarly enhance memory for other contextual details of an event (source memory). Participants studied words that appeared on either the top or bottom of the computer screen in either a large or small font size. Following the study phase, participants completed a recognition/source test in which they had to indicate the location in which they studied …

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A Painting Process: A Journal, Kenneth Alexander Mcashan Jan 2004

A Painting Process: A Journal, Kenneth Alexander Mcashan

LSU Master's Theses

This thesis is presented in journal format and represents a process of painting initiated September 2001 at Louisiana State University. The basis of my paintings can best be described as image oriented mark making. Initially figural images are taken from life drawings then used as starting points to investigate the forms through changes made to their visual properties. Fragments of the images are traced onto paper, manipulated, and then reassembled. This process provides a spring board, a shift from what was recorded earlier by direct observation to images not confined by the requirements of representation.

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The Effectiveness Of Language-Literacy Training For Child Care Workers, Katelyn Beth Venturella Jan 2004

The Effectiveness Of Language-Literacy Training For Child Care Workers, Katelyn Beth Venturella

LSU Master's Theses

The purpose of the current study was to examine the effectiveness of group-based language-literacy training for child care workers. The first phase of the study followed a pre-post single group comparison design and involved 23 child care providers. The independent variable was the teacher training and the dependant variable was scores from a questionnaire. The second phase of the study involved a sub-group of four child care workers who received one-on-one follow up training after the group sessions. The questionnaire was administered a third time to the follow-up group. An analysis of the questionnaire items at pretest indicated that the …

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The Portrayals Of Minority Characters In Entertaining Animated Children's Programs, Siobhan Elizabeth Smith Jan 2004

The Portrayals Of Minority Characters In Entertaining Animated Children's Programs, Siobhan Elizabeth Smith

LSU Master's Theses

The purpose of this study is to note, categorize, and discuss the stereotypes of African Americans in animated children’s cartoons. The purpose is also to compare them to see how they changed. A content analysis of two cartoons finds that characters do act in stereotypical ways. A quantitative analysis of 76 cartoons supports these findings. Overall, The Proud Family, a cartoon of the 21st century, is more stereotypical than Fat Albert and the Cosby Kids, a cartoon from 30 years ago. Though primary characters display the same amount of stereotypical behavior, secondary characters show an increase in the amount of …

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Freshwater And Nutrient Inputs To A Mississippi River Deltaic Estuary With River Re-Introduction, Emily Christina Grace Hyfield Jan 2004

Freshwater And Nutrient Inputs To A Mississippi River Deltaic Estuary With River Re-Introduction, Emily Christina Grace Hyfield

LSU Master's Theses

In this study, I quantified freshwater and nutrient inputs in the Breton Sound estuary which is receiving freshwater reintroduction in an effort to restore deteriorating wetlands. Almost all wetlands of the Mississippi deltaic plain are isolated from riverine input due to flood control levees along the Mississippi River. This has altered water and nutrient budgets and is a primary cause of the massive wetland loss in the delta. Maintenance of the delta depends on a healthy, functioning ecosystem which includes riverine input. The Breton Sound estuary is located southeast of New Orleans and until recently was hydrologically isolated from direct …

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Efficacy Of Prepartum Intramammary Lactating Cow Treatment In Dairy Heifers, Christopher B. Norman Jan 2004

Efficacy Of Prepartum Intramammary Lactating Cow Treatment In Dairy Heifers, Christopher B. Norman

LSU Master's Theses

Mastitis in prepartum dairy heifers has been recognized as a significant economic problem for the dairy industry. Intramammary infusion of cephapirin sodium was completed in 20 treatment animals and the results were compared to 25 non-treated control animals. Bacteriological data from the quarter milk samples were used to determine and compare initial infection rates and cure rates following calving between treatment and control groups. Comparisons were also made between groups for differences in reproductive performance, milk yield, somatic cell count and milk ketone concentration. Milk yield did not differ between groups for either DHIA monthly average kg/day, 305 day actual …

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Capacity Of Freshwater Marsh To Process Nutrients In Diverted Mississippi River Water, Craig Bonya' Johnson Jan 2004

Capacity Of Freshwater Marsh To Process Nutrients In Diverted Mississippi River Water, Craig Bonya' Johnson

LSU Master's Theses

The loss of Louisiana's coastal wetlands has mandated the construction of diversion structures for reintroduction of a portion of the Mississippi River into Louisiana's coastal region for slowing or reversing marsh deterioration. The Davis Pond Freshwater Diversion Structure allows for a section of the Mississippi River water to be reintroduced into Louisiana's Barataria Basin. The reintroduced Mississippi River water contains elevated levels of nitrate and other nutrients from agricultural runoff primarily from the upper reaches of the Mississippi River drainage basin. These elevated nitrate levels have raised questions of possible eutrophication effects on Louisiana estuaries. The purpose of this study …

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A Site Design In A Hurricane Prone Coastal Environment: Grand Isle, Louisiana Case Study, Naniek Kohdrata Jan 2004

A Site Design In A Hurricane Prone Coastal Environment: Grand Isle, Louisiana Case Study, Naniek Kohdrata

LSU Master's Theses

The property owns by Grand Idle Port of Commission with its unique combination of coastal and wetland landscape, the richness of environment and the susceptibility to hurricanes give opportunities as well as limitations in developing the site. A respond to this fragile but rich environment is a sustainable planning and design that balances the site programs and environment sensitivity. An ecologically, socially, economically, and aesthetically sound will provides an opportunity to achieve the optimal uses of the natural resources while maintaining the environment sustainability. The master plan of Port of Grand Isle addresses the client’s programs expectation and enhances the …

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I-Tal Foodways: Nourishing Rastafarian Bodies, Mandy Garner Dickerson Jan 2004

I-Tal Foodways: Nourishing Rastafarian Bodies, Mandy Garner Dickerson

LSU Master's Theses

This thesis takes a close look at the lived world of Jamaican Rastafarians through the lens of food-related practices and preferences, working to define the group's characteristic strategies for maintaining wellness and illuminating their tastes and sensibilities. It strives to evoke a sensorial and discursive awareness of the activities through which Rastafarians nourish and heal their physical and social bodies, by focusing on ways in which they produce and use I-tal food-medicines. Rastafarian taste for I-tal has developed alongside collective engagement with the valorization and revitalization of traditional knowledge about health and land use. In addition to providing sites for …

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Bees Associated With Louisiana Longleaf Pine Savannas, Chanda Sara Bartholomew Jan 2004

Bees Associated With Louisiana Longleaf Pine Savannas, Chanda Sara Bartholomew

LSU Master's Theses

Longleaf pine savannas are perhaps the most threatened ecosystems in North America. Despite a well documented and highly diverse flora, little has been published on insects in general and, in particular, on bees that provide the valuable service of plant pollination. Thus, the aims of this study were to: 1) survey bees found in two savanna types in southeastern Louisiana; and 2) contrast the diversity and species composition of these two savanna types. An ancillary goal was to contrast two collecting protocols for bees in the savanna habitat. Overall, a total of 3,407 bees were collected representing 125 species. Of …

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Does Eutrophication Enhance Cd Bioavailability By Trophic Transfer To The Marine Amphipod Leptocheirus Plumulosus From Microalgae?, Riqing Yu Jan 2004

Does Eutrophication Enhance Cd Bioavailability By Trophic Transfer To The Marine Amphipod Leptocheirus Plumulosus From Microalgae?, Riqing Yu

LSU Master's Theses

Bioavailability and nutrient effects on the trophic transfer of Cadmium (Cd) associated with microalgae to the marine amphipod, Leptocheirus plumulosus, were investigated. Cd assimilation efficiencies (AE) were measured by a pulse-chase technique using a radiotracer. Cd AE in L. plumulosus significantly varied among algal species tested, and was highest (38.8 %) for the benthic diatom Nitzschia punctata, lowest (5.9%) for the planktonic diatom Thalassiosira weissflogii, and intermediate (15.6%) for the planktonic dinoflagellate Isochrysis galbana. Instantaneous egestion rates of Cd displayed a typical biphasic pattern over 96 h of depuration. Depuration in seawater-only of L. plumulosus yielded the highest Cd AE …

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In Vitro Evaluation Of The Securos Cranial Cruciate Ligament Repair System And Fluorocarbon Leader Line For Use As Lateral Fabella-Tibial Sutures, Max Nielsen Banwell Jan 2004

In Vitro Evaluation Of The Securos Cranial Cruciate Ligament Repair System And Fluorocarbon Leader Line For Use As Lateral Fabella-Tibial Sutures, Max Nielsen Banwell

LSU Master's Theses

Cranial cruciate ligament (CCL) rupture is a common injury in the dog and major cause of degenerative joint disease. The pathophysiology of CCL rupture in the dog is well described. Osteoarthritis secondary to CCL rupture causes severe pain and lameness. There are many surgical techniques accepted for dogs with CCL rupture. A commonly performed technique is an extracapsular repair with a lateral fabella-tibial suture (LFS) using large diameter nylon leader line (NLL). Mechanical demands placed upon the LFS are high requiring the material used be able to withstand a high amount of force, undergo minimal elongation, and have a high …

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Guanajuato: A Virtual Exhibit, Norma Elena Gonzalez Jan 2004

Guanajuato: A Virtual Exhibit, Norma Elena Gonzalez

LSU Master's Theses

This thesis will present a virtual exhibition of a tourist destination in Mexico, Guanajuato City. By applying my previous experiences and the knowledge and skill acquired during this MFA program, I developed a Multimedia exhibition that encompasses a new virtual experience of the Mexican culture. This exhibition demonstrates my proficiency in the area of motion graphics.

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Effect Of Ohmic Heating On Color, Rehydration And Textural Characteristics Of Fresh Carrot Cubes, Sandeep Dattatraya Bhale Jan 2004

Effect Of Ohmic Heating On Color, Rehydration And Textural Characteristics Of Fresh Carrot Cubes, Sandeep Dattatraya Bhale

LSU Master's Theses

Carrot cubes were ohmically heated with 2 different frequencies 1 Hz and 60 Hz to evaluate change in color, texture and rehydration properties. Carrot samples were stored under 4 different relative humidity (RH) conditions 11.1 %, 32.7%, 55.7 % and 75.3 %. Experiments were conducted to monitor the textural parameters of hardness, fracturability, adhesiveness, cohesiveness and chewiness and color changes in terms of CIE color values. Results showed that the hardness, fracturability and adhesiveness of 1- Hz samples stored at 75.3 % RH were different from those at 55.7 % RH. The adhesiveness, cohesiveness and chewiness of 1-Hz samples were …

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The Fidelity Of Red Snapper (Lutjanus Campechanus) To Petroleum Platforms And Artificial Reefs In The Northern Gulf Of Mexico, Megan Blythe Peabody Jan 2004

The Fidelity Of Red Snapper (Lutjanus Campechanus) To Petroleum Platforms And Artificial Reefs In The Northern Gulf Of Mexico, Megan Blythe Peabody

LSU Master's Theses

The habitat value of petroleum platforms for red snapper, Lutjanus campechanus, is poorly understood. However, it is widely recognized by both scientists and fishermen that the presence of platforms in the northern Gulf of Mexico (GOM) has affected the distribution of red snapper by the addition of hard substrate habitat. I evaluated the habitat value of standing and toppled platforms by monitoring the fidelity of red snapper to these structures with acoustic telemetry. In May 2003, 125 red snapper were captured with hook and line at several platforms in a 35-km2 portion of the South Timbalier oil and gas lease …

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Evaluation Of Rough Brucella Strains As Vaccines For Brucellosis And Pseudorabies In Swine, Lorraine Harrow Molin Jan 2004

Evaluation Of Rough Brucella Strains As Vaccines For Brucellosis And Pseudorabies In Swine, Lorraine Harrow Molin

LSU Master's Theses

Brucellosis and pseudorabies lead to abortion in pregnant sows and are perpetuated by feral swine reservoirs. A multivalent oral vaccine for these diseases would improve vaccination and eradication programs worldwide. Previous studies have shown that the rough attenuated Brucella strains RB51 and VTRS1, when administered subcutaneously to swine, stimulate host immune responses, transiently colonize tissues, and provide partial protection against virulent B. suis infection in pregnant sows. A plasmid encoding for the pseudorabies virus glycoprotein D (PRV gD) has also been added to these strains as part of this project. This study evaluates the use of these strains as oral …

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