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2006

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Detection And Survival Of Escherichia Coli O157:H7 In Cattle Water Troughs And The Effects Of Cetylpyridinium Chloride Against Escherichia Coli O157:H7 Biofilms On The Surface Of Stainless Steel, Sajida Begum Plauche Jan 2006

Detection And Survival Of Escherichia Coli O157:H7 In Cattle Water Troughs And The Effects Of Cetylpyridinium Chloride Against Escherichia Coli O157:H7 Biofilms On The Surface Of Stainless Steel, Sajida Begum Plauche

LSU Doctoral Dissertations

Escherichia coli O157:H7 is an emerging food pathogen that was first identified as a cause of illness in 1982. According to CDC (The Center for Disease Control and Prevention) estimates, E. coli O157:H7 is responsible for about 73,000 illnesses, 2,000 hospitalizations and 60 deaths in the United States each year. Cattle are the principal reservoir of E. coli O157:H7. Contamination of feed and drinking water with cattle feces is an importance factor in the prevalence of infection in cattle which, in turn, results in contamination of food and the environment. Escherichia coli O157:H7 is a very persistent pathogen and has …

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Direct Detection Of Homocysteine And Syntheses Of Lanthanide Complexes As Biosensors, Weihua Wang Jan 2006

Direct Detection Of Homocysteine And Syntheses Of Lanthanide Complexes As Biosensors, Weihua Wang

LSU Doctoral Dissertations

At elevated levels, homocysteine (Hcy) is a risk factor for cardiovascular diseases and Alzheimer’s disease. It’s also implicated in a number of other diseases such as neural tube defects, pregnancy complications, and renal failures. The monitoring of Hcy levels in plasma is of current concern. To date, the biochemical mechanism by which Hcy is involved in disease states is unclear. Herein, we describe highly selective colorimetric methods for the direct determination of Hcy. Inexpensive, commercially available materials are reported. The results show potential application for the detection of Hcy in human blood plasma. Additionally, new HPLC postcolumn detection methods for …

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Measuring Player Perceptions Of Advertising In Online Games, Ben Lewis Jan 2006

Measuring Player Perceptions Of Advertising In Online Games, Ben Lewis

LSU Master's Theses

An experiment with 100 participants aged 18-24 was conducted to measure the effects of advertising in an online role-playing computer game on perceived interactivity and other aspects of gameplay experience. Results from a post-test questionnaire revealed insight into players' attitudes toward advertising in video game environments, and reflected varying levels of advertising awareness and recall, message recognition, and factors in purchasing habits. Results suggested that while advertising in online games can sometimes trigger high advertising awareness rates, it can also reduce a game's perceived sense of realism and genuinely annoy players if not appropriately coordinated with the game environment. Whereas …

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Analysis Of Consumer Attitudes And Their Willingness To Pay For Functional Foods, Cate Nakaweesa Munene Jan 2006

Analysis Of Consumer Attitudes And Their Willingness To Pay For Functional Foods, Cate Nakaweesa Munene

LSU Master's Theses

Survey data collected from randomly selected participants within the four geographical regions of the U.S. were used to evaluate consumer attitudes towards functional foods and determine their willingness to pay for these foods. Contingent valuation using the payment card method was used to elicit premiums that consumers are willing to pay for a spread that maintains a healthy heart (spread A), a spread that is proven to significantly reduce cholesterol (spread B) and a loaf of bread that may reduce the risk of heart disease and certain cancers (bread A). Ordered probit regression analysis was used to evaluate the effect …

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Animation In Artificial Grammar Learning: Can Animation Facilitate Learning?, Bill Sallas Jan 2006

Animation In Artificial Grammar Learning: Can Animation Facilitate Learning?, Bill Sallas

LSU Master's Theses

Domangue, Mathews, Sun, Roussel, and Guidry (2004) trained participants to generate valid exemplars from an artificial grammar using either memory-based or model-based processing. Their results showed that learning by memory-based processing resulted in fast but inaccurate performance, while model-based learning resulted in slow but accurate performance. Attempts to integrate both types of training did not result in fast and accurate string generation. Fast and accurate performance was achieved by Sun and Mathews (2004) using a computer animated display to train participants. The current study used a 2x2x2 factorial design to determine why participants who view an animated display of a …

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Study Of Reliable Data Communication In Wireless Sensor Networks, Ravilochan G. Shamanna Jan 2006

Study Of Reliable Data Communication In Wireless Sensor Networks, Ravilochan G. Shamanna

LSU Master's Theses

A distributed wireless sensor network consists of numerous tiny autonomous sensing nodes deployed across a wide geographical area. These sensor nodes self organize and establish radio communication links with the neighboring nodes to form multi-hop routing paths to the central base station. The dynamic and lossy nature of wireless communication poses several challenges in reliable transfer of data from the sensor nodes to the sink. There are several applications of sensor networks wherein the data collected by the sensors in the network are critical and hence have to be reliably transported to the sink. An example of such an application …

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Repression And Reduction: The Apparatchik's Discourse In The Works Of Ammianus Marcellinus, Denis Diderot, Victor Serge And George Orwell, Jason Paul Juneau Jan 2006

Repression And Reduction: The Apparatchik's Discourse In The Works Of Ammianus Marcellinus, Denis Diderot, Victor Serge And George Orwell, Jason Paul Juneau

LSU Doctoral Dissertations

In monopolizing political power, the state claims to possess the best idea towards leading a society and solving its problems. While these claims may vary according to regime, all face the eventual failure of expectation on the part of its subjects. No regime can master all the variables in running the country, and so it must convince their subjects otherwise of its legitimacy, despite the reality of their failure. The apparatchik’s discourse is the interaction of the state’s discourse and that of its institutions. This discourse is used to uphold the state’s legitimacy through the expertise of its institutions. The …

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Heroic Individualism: The Hero As Author In Democratic Culture, Alan I. Baily Jan 2006

Heroic Individualism: The Hero As Author In Democratic Culture, Alan I. Baily

LSU Doctoral Dissertations

My study focuses on the literature of democratic morality, with specific reference to the question of "heroic individualism." I attempt to elucidate the notion of heroic individualism by examining three modern democratic moralists whose work occupies the space between politics and literature: Jean Jacques Rousseau, Thomas Carlyle and Friedrich Nietzsche. In brief, I conclude that the central aspiration of heroic individualism is to bridge the gap between writing and action, the Text and the Voice. The dialogue among Rousseau, Carlyle, and Nietzsche reveals that the problem of writing as action is central to heroic-individualist morality. Each of these authors demonstrates …

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Influence Of Circadian Rhythm On The Physical And Mental Performance, Maryam Muhammed Amin Jan 2006

Influence Of Circadian Rhythm On The Physical And Mental Performance, Maryam Muhammed Amin

LSU Master's Theses

This thesis studied the temperature circadian rhythm and its relationship with the physical and mental performance of the individuals. The objectives of this study were to determine (1) the effect of temperature circadian rhythm on the mental and physical performance, (2) whether a common oral temperature circadian rhythm pattern exists for all the participants, (3) the times of the day when the participants perform their best and worst in comparison to their highest and lowest temperatures respectively, (4) find out whether the effect of the oral temperature circadian rhythm on the physical and mental performance is different in males and …

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Monoclonal And Phage-Displayed Antibodies As Lipopolysaccharide Serotyping Reagents And Their Use In Typing Colony Variants Of Vibrio Vulnificus, Randall M. Schulz Jan 2006

Monoclonal And Phage-Displayed Antibodies As Lipopolysaccharide Serotyping Reagents And Their Use In Typing Colony Variants Of Vibrio Vulnificus, Randall M. Schulz

LSU Doctoral Dissertations

Vibrio vulnificus is a Gram-negative organism that is found in estuarine environments. The bacterium is capable of causing gastroenteritis, wound infections, and septicemia, often resulting in death for susceptible individuals. Monoclonal antibodies (MAbs) to five lipopolysaccharide (LPS) O-serovars have previously been used as a serotyping system in epidemiological studies. Here is the first report of two additional MAbs capable of recognizing two new LPS serovars (O6 and O7), further increasing the number of V. vulnificus that can be typed. Analysis of V. vulnificus isolates from the United States, Europe, and Asia demonstrated that the O1/O5 serovar is dominate in clinical …

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Role Of Hydrocarbon Pollutants, Salinity, Tidal Height, Bioenergetics And Competition In Colonization Of Oyster Reefs By Commensal Assemblages, Yasoma Dhammika Hulathduwa Jan 2006

Role Of Hydrocarbon Pollutants, Salinity, Tidal Height, Bioenergetics And Competition In Colonization Of Oyster Reefs By Commensal Assemblages, Yasoma Dhammika Hulathduwa

LSU Doctoral Dissertations

Effects of hydrocarbons, salinity, tidal height, bioenergetics and competition on the oyster reef fauna were studied. Dried oyster shell was exposed to crude oil in the laboratory and plastic trays filled with control and oil-exposed shell were then deployed at two locations, in two seasons and at two tidal levels, with immersion periods of two and five weeks. Salinity exhibited a significant effect with sub tidal site having higher diversity. Hydrocarbon effects were less prominent. To determine effects of cleaners, Corexit 9580 was applied both alone and in combination with oil on cultch. At high concentrations, the cleaner ameliorated hydrocarbon …

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Who Said "Words Can Never Hurt?": An Investigation Of Child Weight Status, Childhood Psycosocial Variables, And Later Adult Quality Of Life, Holly Spencer Kihm Jan 2006

Who Said "Words Can Never Hurt?": An Investigation Of Child Weight Status, Childhood Psycosocial Variables, And Later Adult Quality Of Life, Holly Spencer Kihm

LSU Doctoral Dissertations

The first purpose of the research project was to examine the relationship between child weight status and adult quality of life. The second purpose of the research project was to test psychosocial variables as mediators of the relationship between child weight status and adult quality of life. A total of 164 undergraduate and graduate students from Louisiana State University participated in the study. The students completed five online questionnaires that were used to assess variables such as child weight status, adult weight status, history of childhood teasing experiences, child self-concept, and adult quality of life. Several statistical analyses were employed …

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Biomechanical Characteristics Of Low Back Tissues During Trunk Flexion-Extension, Michael William Olson Jan 2006

Biomechanical Characteristics Of Low Back Tissues During Trunk Flexion-Extension, Michael William Olson

LSU Doctoral Dissertations

Analysis of the mechanical and neural regulatory mechanisms of the flexion-relaxation phenomenon (FRP), observed in deep trunk flexion, was performed since it is believed these mechanisms provide insight into the causes of low back injury and pain. Three methods were used to analyze the behavior of the lumbar tissues during trunk flexion-extension exercises: 1) active continuous cyclic movement, 2) acute cyclic movement at different orientations, and 3) passive continuous cyclic movement. All activities were performed at a rate of 0.1 Hz (6 cycles•min-1) while monitoring the surface electromyography (EMG) of the lumbar paraspinal muscles. Abdominal, hamstring, and quadriceps muscle activities …

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The Effect Of A Condensed Tannin Containing Forage, Sericea Lespedeza On Existing And Challenge Infections Of Haemonchus Contortus In Sheep, Leigh Ann Chafton Jan 2006

The Effect Of A Condensed Tannin Containing Forage, Sericea Lespedeza On Existing And Challenge Infections Of Haemonchus Contortus In Sheep, Leigh Ann Chafton

LSU Master's Theses

Haemonchus contortus is one of the most threatening parasites to small ruminant production. Control has traditionally relied on the use of anthelmintics. Control has waned because the worm population has developed resistance to most of the currently available anthelmintics and alternative control measures are needed. Current consumer pressure is to reduce the use of chemicals in agricultural products, thus pushing control methods to more natural and acceptable approaches. One such approach is the feeding of condensed tannin containing forages either as fresh forage or dried products (hay, meal, pellets, etc). This study was conducted to determine the effect of a …

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The Effects Of Carbonated Marinade On The Shelf Life Of Enhanced Pork, Maria Ofelia Guerra Jan 2006

The Effects Of Carbonated Marinade On The Shelf Life Of Enhanced Pork, Maria Ofelia Guerra

LSU Master's Theses

Brine incorporation into meat products has become a well established practice in the United States. Brines are used to enhance the eating quality of pork by improving its tenderness and juiciness. Carbon dioxide and carbon monoxide have been used in modified atmosphere packaging as antimicrobial agents and color stabilizers, respectively, to increase the shelf life of retail meats. The objective of this experiment was to analyze the effects of incorporating carbon dioxide and carbon monoxide into brine solutions to subsequently inject into raw chilled pork. Pork loins were injected with brine solutions containing 2.27% phosphates, 3.79% salt and dissolved gas …

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Historical Fire Regimes In Southeasern Pine Savannas, Jean Marie Huffman Jan 2006

Historical Fire Regimes In Southeasern Pine Savannas, Jean Marie Huffman

LSU Doctoral Dissertations

Southeastern coastal plain pine savannas lack direct evidence of past fire regimes. As a result, uncertainty exists regarding the range of variation in frequency and seasonal timing of past fire regimes and the relative importance of anthropogenic and lightning-ignited fires. Characterization of past fire regimes is needed for effective restoration and management of these high-biodiversity ecosystems. I used dendrochronologically dated fire scars from stumps of old growth longleaf pines in a large coastal, mainland pine savanna and from dead slash pines on a small, coastal barrier island in north Florida to explore past fire regimes. In the mainland savanna, 71 …

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Evaluation Of A Plasmid Delivery System For Production Of Gnrh And Ghrh In The Horse And Goat, William Andrew Storer Jan 2006

Evaluation Of A Plasmid Delivery System For Production Of Gnrh And Ghrh In The Horse And Goat, William Andrew Storer

LSU Doctoral Dissertations

The efficacy of a novel plasmid delivery system was assessed for long-term expression of gonadotropin releasing hormone (GnRH) and growth hormone releasing hormone (GHRH) in horses and goats. The efficacy of the technology was demonstrated using 3 novel plasmids: pSEAP [expressing secreted embryonic alkaline phosphatase (SEAP)], pGHRH (expressing GHRH), and pGnRH (expressing GnRH). Geldings were electroporated with a reporter plasmid expressing SEAP in 3 muscle sites. Expression of SEAP, measured from jugular plasma samples, indicated muscle specificity for uptake and expression of the plasmid. Concentrations of SEAP were greatest (P < 0.05) after pectoralis injection, which was chosen as the site for electroporation in subsequent studies. In a second experiment, stallions were electroporated with pGHRH or pSEAP to evaluate the effect of long-term GHRH treatment on the growth hormone (GH) axis and testicular function. Stallions treated with pGHRH had increased (P < 0.05) plasma concentrations of IGF-I, increased (P < 0.05) volume of accessory sex gland fluid, and increased (P < 0.05) number of normal spermatozoa in the ejaculate relative to controls. In the third experiment, stallions were electroporated with pGnRH or pSEAP to test the effects of GnRH on the reproductive axis. Treatment with pGnRH increased (P < 0.05) plasma testosterone concentrations to d 56 and increased (P < 0.01) the LH response to GnRH on d 21, but did not alter (P > 0.1) seminal characteristics evaluated after 36 d of treatment. In …

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A Hero For All Time?, Robert Lowe Jan 2006

A Hero For All Time?, Robert Lowe

College of Education Faculty Research and Publications

Book review of: Rousmaniere, K. (2005). Citizen Teacher: The Life and Leadership of Margaret Haley. New York: State University of New York Press.

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The Development Of Wheel-Induced Feeding Suppression In Male And Female Rats, Olivia Dalton-Jez Jan 2006

The Development Of Wheel-Induced Feeding Suppression In Male And Female Rats, Olivia Dalton-Jez

Theses and Dissertations (Comprehensive)

Access to a running wheel causes a feeding suppression in adult rats (Afonso & Eikelboom, 2003) but it appears this wheel induced feeding suppression is not evident in weanlings (Cortright, Chandler, Lemon, and DiCarlo, 1997). This ad lib wheel and food model (ALWF) has been suggested as an animal model of anorexia nervosa (AN). Two characteristic features of AN are the disorder's very specific age of onset and the marked sex difference in incidence, with the majority of cases first becoming evident in females during puberty. It is not clear how much of the genesis of and expression of this …

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The Techniques Of The Sacrifice Of Animals In Ancient Israel And Ancient Mesopotamia: New Insights Through Comparison, Part 1, Joann Scurlock Jan 2006

The Techniques Of The Sacrifice Of Animals In Ancient Israel And Ancient Mesopotamia: New Insights Through Comparison, Part 1, Joann Scurlock

Andrews University Seminary Studies (AUSS)

No abstract provided.

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The Angel At The Altar (Revelation 8:3-5): A Case Study On Intercalations In Revelation, Ranko Stefanovic Jan 2006

The Angel At The Altar (Revelation 8:3-5): A Case Study On Intercalations In Revelation, Ranko Stefanovic

Andrews University Seminary Studies (AUSS)

No abstract provided.

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Was Karlstadt A Proto-Sabbatarian?, Edward Allen Jan 2006

Was Karlstadt A Proto-Sabbatarian?, Edward Allen

Andrews University Seminary Studies (AUSS)

No abstract provided.

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Cain, Abel, Seth, And The Meaning Of Human Life As Portrayed In The Books Of Genesis And Ecclesiastes, Radiša Antic Jan 2006

Cain, Abel, Seth, And The Meaning Of Human Life As Portrayed In The Books Of Genesis And Ecclesiastes, Radiša Antic

Andrews University Seminary Studies (AUSS)

No abstract provided.

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The Techniques Of The Sacrifice Of Animals In Ancient Israel And Ancient Mesopotamia: New Insights Through Comparison, Part 2, Joann Scurlock Jan 2006

The Techniques Of The Sacrifice Of Animals In Ancient Israel And Ancient Mesopotamia: New Insights Through Comparison, Part 2, Joann Scurlock

Andrews University Seminary Studies (AUSS)

No abstract provided.

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The Effects Of Contextual Interference On The Acquisition, Retention, And Transfer Of A Music Motor Skill Among University Musicians, Leslie Paige Rose Jan 2006

The Effects Of Contextual Interference On The Acquisition, Retention, And Transfer Of A Music Motor Skill Among University Musicians, Leslie Paige Rose

LSU Doctoral Dissertations

The contextual interference hypothesis holds that simple motor skill tasks are best learned when practiced under blocked, or repetitive conditions, but that retention and transfer are best accomplished when the skill has been practiced in varied conditions. The purpose of this study was to measure the effects of contextual interference practice conditions on the acquisition, retention, and transfer of a complex task—right hand lead percussion sticking technique among university musicians. All participants (N = 120) demonstrated rhythmic competency for the task, and were necessarily unable to perform the sticking technique with accuracy at the start of treatment. Three treatment groups …

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The Macarthur-Bates Communicative Development Inventory As An Assessment Tool For Low-Income, African American Children, Elizabeth Waters Wooden Jan 2006

The Macarthur-Bates Communicative Development Inventory As An Assessment Tool For Low-Income, African American Children, Elizabeth Waters Wooden

LSU Master's Theses

The purpose of this study was to examine the usefulness of the MacArthur- Bates Communicative Development Inventory (CDI) as an assessment tool for low-income, African American (AA) children. The data were from eighty-seven typically developing AA children, aged 8 to 30 months; these children were recruited from childcare centers that served low-income populations in Baton Rouge, Louisiana. Each participant’s primary caregiver completed a biographical sketch and a CDI inventory. Two analyses were completed. The first analysis examined the distribution of the CDI scores relative to the child’s age, gender, birth order, and level of maternal education. The second analysis involved …

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Vitrification And Dehydration For The Preservation Of Gametes, Allison E. Moisan Jan 2006

Vitrification And Dehydration For The Preservation Of Gametes, Allison E. Moisan

LSU Doctoral Dissertations

Of the 36 species of felines in the world, all except the domestic cat are listed as endangered or threatened. To preserve the genetic diversity of felines and other species, genome resource banks have been established. Due to limited availability of germ cells for research, studies must use models to optimize the techniques before they are applied to endangered species. In this study, preservation of oocytes and spermatozoa was examined using the bovine as a model for felines. In the first series of experiments, bovine and feline oocytes were dehydrated, vitrified, warmed and cultured to assess their ability to undergo …

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Population Biology And Disturbance Ecology Of A Native North American Bamboo (Arundinaria Gigantea), Paul R. Gagnon Jan 2006

Population Biology And Disturbance Ecology Of A Native North American Bamboo (Arundinaria Gigantea), Paul R. Gagnon

LSU Doctoral Dissertations

This dissertation explores effects of windstorm and fire disturbances on the clonal and reproductive biology of cane (Arundinaria gigantea Muhl., Poaceae). In this collection of studies, multiple disturbances interact in complex ways, and some interactions appear only after a substantial lag. One implication of this research is that multiple, interacting disturbances might strongly influence the boundary between monodominant and species-rich plant communities. Cane is the only bamboo native to the United States, and once covered vast areas of bottomlands in the southeastern U.S. in monodominant stands called “canebrakes.” The study took place on the Buckhorn Wildlife Management Area in Tensas …

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Evaluating Miriam Solomon's Social Empiricism: The Environmental Endocrine Hypothesis, Robby Joseph Burleigh Jan 2006

Evaluating Miriam Solomon's Social Empiricism: The Environmental Endocrine Hypothesis, Robby Joseph Burleigh

LSU Master's Theses

Throughout the history of science, philosophers and scientists alike have sought to codify a set of rules that would guarantee those who practice science success. These rules, if followed faithfully, would eliminate the guesswork from science, and instead, mold the practice of science into a rule - governed enterprise. Many philosophers of science have attempted to generate the rules that would govern successful scientific practice; however, with no success. Miriam Solomon attempts to give scientists heuristic advice by using a naturalistic approach in which she uses various case studies throughout the history of science to illustrate her approach. The core …

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Reading Trauma In Postmodern And Postcolonial Literature: Charlotte Delbo, Toni Morrison, And The Literary Imagination Of The Aftermath, Sylviane Finck Jan 2006

Reading Trauma In Postmodern And Postcolonial Literature: Charlotte Delbo, Toni Morrison, And The Literary Imagination Of The Aftermath, Sylviane Finck

LSU Doctoral Dissertations

Some personal or collective histories can never be completely integrated into the continuum of one's emotional life. Such stories produced in traumatic times or in disastrous events are likely to remain only partially understood or accepted. Examining the human consequence of traumatic events such as the enslavement of Africans in the United States or the attempted extermination of the Jewish people in Europe is one challenging focus of this work. It is comparatively productive, however, if these events are approached from the perspective of the trauma they have produced-an approach that suspends chronological and geographical barriers of time and space. …

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