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2002

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Subsequent Summer Forage Intake Following Winter Gain Restriction, D. J. Jordon, Dale Downs, Galen E. Erickson, Don C. Adams, Terry J. Klopfenstein Jan 2002

Subsequent Summer Forage Intake Following Winter Gain Restriction, D. J. Jordon, Dale Downs, Galen E. Erickson, Don C. Adams, Terry J. Klopfenstein

Nebraska Beef Cattle Reports

Data were collected to determine effect of winter gain on forage intake and summer and finishing performance of yearling steers. Steers wintered at reduced gains compensated 17 and 48% over two years. Intake, as a percentage of body weight, was increased for compensating steers. Steers gaining faster in winter had a reduced break even ($67.01 vs 70.05/cwt) and were more profitable ($5.79 vs -31.32/ head) compared to slower gaining steers. Growing animals at faster (1.50 - 1.65 lb/day) compared to slower (0.45 - 0.55 lb/day) rates of winter gain is superior unless 65%-70% compensation is achieved.

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Factors Influencing Color Development In Beef, Kevin Kirchofer, Chris R. Calkins, Dennis E. Burson, Kent M. Eskridge Jan 2002

Factors Influencing Color Development In Beef, Kevin Kirchofer, Chris R. Calkins, Dennis E. Burson, Kent M. Eskridge

Nebraska Beef Cattle Reports

Color development over time in beef carcasses is affected by chill length, fat thickness and hot carcass weight. Ultimate color can be accurately predicted after 9-12 minutes.

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Effects Of Rumensin Level During An Acidosis Challenge, Trey Patterson, Todd Milton, Galen E. Erickson, Terry J. Klopfenstein, M. Blackford, Cal Parrott Jan 2002

Effects Of Rumensin Level During An Acidosis Challenge, Trey Patterson, Todd Milton, Galen E. Erickson, Terry J. Klopfenstein, M. Blackford, Cal Parrott

Nebraska Beef Cattle Reports

Eighteen ruminally cannulated steers were used to determine effects of Rumensin level on incidence and severity of acidosis when an acidosis challenge was imposed. Steers received a high-concentrate finishing diet containing either 0, 30, or 45 grams/ton Rumensin. An acidosis challenge was created by feeding only 50% of diet intake one day followed by 175% of intake the next day, four hours post normal feeding time. Feeding Rumensin decreased feed intake during the prechallenge, challenge and acidosis recovery phase. Compared to 30 grams/ ton, feed intake was decreased by increasing Rumensin to 45 grams/ton during the five days following the …

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Supplementing Yearling Summer Grazing Cattle With Fat And Protein And Subsequent Feedlot Performance, Ivan G. Rush Jan 2002

Supplementing Yearling Summer Grazing Cattle With Fat And Protein And Subsequent Feedlot Performance, Ivan G. Rush

Nebraska Beef Cattle Reports

Yearling steers supplemented with protein (40% - 29% NPN - 19% from biuret) while grazing primarily crested wheat grass in the summer gained at a faster rate than control steers which were only provided a commercial salt/ mineral mix. A lower level of protein (20% - 6.7% NPN)/fat (15% -20%) combination supplement also increased gain over controls, but the supplement response was less than the higher protein supplement. Gain responses were greater during the latter part of the grazing season when forage quality was poorest. Supplementation intake varied but tended to be greater during the latter part of the grazing …

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Forage Quality And Animal Performance Of Steers Grazing Smooth Bromegrass/Legume Pastures, Mark Ullerich, Terry J. Klopfenstein, Bruce Anderson, Michael Trammell Jan 2002

Forage Quality And Animal Performance Of Steers Grazing Smooth Bromegrass/Legume Pastures, Mark Ullerich, Terry J. Klopfenstein, Bruce Anderson, Michael Trammell

Nebraska Beef Cattle Reports

A trial was conducted to evaluate effects of interseeding legumes into smooth bromegrass pastures on animal performance and forage quality. Animal gains on legume/bromegrass treatments were higher than bromegrass alone. Laboratory analysis of diet samples collected from ruminally fistulated steers indicated no difference in the undegradable intake protein content of pastures. Legume/bromegrass treatments had higher IVDMD than the control. Therefore, the increases in gain are attributed to increased energy of legume/bromegrass diets and not undegradable protein content.

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Effect Of Sawdust Or Acid Application To Pen Surfaces On Nitrogen Losses From Open-Dirt Feedlots, John Lory, Julie Adams, Bahman Eghball, Terry J. Klopfenstein, J. F. Powers Jan 2002

Effect Of Sawdust Or Acid Application To Pen Surfaces On Nitrogen Losses From Open-Dirt Feedlots, John Lory, Julie Adams, Bahman Eghball, Terry J. Klopfenstein, J. F. Powers

Nebraska Beef Cattle Reports

Two nutrient management treatments (sawdust or sulfuric acid application to pen surface) were compared to conventional management using 12 pens (10 steers/pen) to determine effects on performance and nitrogen losses from pens. Performance and carcass characteristics for treatments were similar to the control. The sawdust treatment retained more nitrogen in manure when removed from the pen surface and after composting. Increasing carbon by sawdust additions reduced nitrogen losses by 21%. Applying acid to the pen surface did not affect quantity of nitrogen or organic carbon conserved in manure and compost.

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Robert Audi, Religious Commitment And Secular Reason, Francis J. Beckwith Jan 2002

Robert Audi, Religious Commitment And Secular Reason, Francis J. Beckwith

Faith and Philosophy: Journal of the Society of Christian Philosophers

No abstract provided.

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La Poetique Du Paysage Dans L'Oeuvre D'Edouard Glissant, De Kateb Yacine Et De William Faulkner, Nabil Boudraa Jan 2002

La Poetique Du Paysage Dans L'Oeuvre D'Edouard Glissant, De Kateb Yacine Et De William Faulkner, Nabil Boudraa

LSU Doctoral Dissertations

This dissertation examines the different ways in which Edouard Glissant, Kateb Yacine and William Faulkner combine landscape, history and identity in their work. The depiction of landscape in literature is not new, but the French Romantics in the 19th century, for instance, tended to describe the beauty of landscape without conceiving any rapport between landscape and humankind, and thus created a gap between the two. For Kateb and Glissant, landscape is also a witness of History. The (hi)story of their respective communities has been confiscated and shattered by the respective colonizers, hence the necessity to recreate it through the poetics …

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Spirit Matter(S): Post-Dualistic Representations Of Spirituality In Fiction By Walker Percy, Toni Morrison And Gloria Naylor, Likourgos James Vassiliou Jan 2002

Spirit Matter(S): Post-Dualistic Representations Of Spirituality In Fiction By Walker Percy, Toni Morrison And Gloria Naylor, Likourgos James Vassiliou

LSU Doctoral Dissertations

Spirit Matter(s): Post-Dualism Representations of Spirituality in Fiction by Walker Percy, Toni Morrison and Gloria Naylor, examines the ways in which these authors have presented spirituality in The Moviegoer, Song of Solomon, and Mama Day respectively. In these works, spirituality is a need for connection among humans in this world, rather than a notion that points to dualistic views of the spiritual and the material as two different realms. Through this perspective on spirituality as a reality of the physical world, the political and socio-economic problems of the world are not—nor can they be—set aside in favor of the spiritual …

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No Place To Die: The Poetics Of Roadside Sacred Places In Mexico, Daniel Raymond Weir Jan 2002

No Place To Die: The Poetics Of Roadside Sacred Places In Mexico, Daniel Raymond Weir

LSU Doctoral Dissertations

Roadside death memorials are a response to the sudden, tragic death of a loved one; and are appearing with increasing regularity in developed and developing countries across the globe. In Mexico, however, wayside memorials and shrines of religiosity are a centuries-old tradition. This work, an effort to understand why the exact location of a person’s death is so important that a sacred place must be created where no place is intended, is basic and exploratory research. A multi-method, and cross-disciplinary case study, based upon the author’s fieldwork in Mexico, produces massive data and constitutes a robust explanatory triangulation. A geographic …

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Permeability Of Rice Cystatin Across Caco-2 Cells, Tania Serigado Antunes Jan 2002

Permeability Of Rice Cystatin Across Caco-2 Cells, Tania Serigado Antunes

LSU Master's Theses

The present work aimed at recovering, purifying, and testing rice cystatin or oryzacystatin I (OCI) bioavailability, to provide scientific evidence that rice cystatin can be used as a functional food ingredient. OCI was extracted from rice bran using 25 mM sodium phosphate buffer containing 0.15 M NaCl at pH 7.0. The resulting homogenate was heat treated, cooled and precipitated with ammonium sulfate. The recovered protein was dialyzed against 50 mM sodium acetate buffer pH 4.8 and sequentially purified by cation exchange, size exclusion, and anion exchange chromatography. Nine hundred and seventy micrograms of protein were obtained from 1 kg of …

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The Sound Of Meaning: Theories Of Voice In Twentieth-Century Thought And Performance, Andrew Mccomb Kimbrough Jan 2002

The Sound Of Meaning: Theories Of Voice In Twentieth-Century Thought And Performance, Andrew Mccomb Kimbrough

LSU Doctoral Dissertations

This dissertation addresses the problem of the denigration of the voice in poststructural theory and contemporary performance criticism. The problem has antecedents in twentieth-century language philosophy. Saussure defines language as a compendium of arbitrary words recognized according to the degrees of phonetic difference between them. Since for Saussure the arbitrary words of language also designate arbitrary concepts, he concludes that the sounds of words cannot be thought constituent of their sense. After Saussure, structuralism dislodges the voice from its privileged position in the phonologic discourses of Western thought. Poststructuralism views meaning as a product of socially constructed language systems, and …

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Odorant Receptors: Regulation, Signaling, And Expression, Michele Lynn Rankin Jan 2002

Odorant Receptors: Regulation, Signaling, And Expression, Michele Lynn Rankin

LSU Doctoral Dissertations

Olfactory signal transduction is initiated by binding of odorous ligands to G protein-coupled odorant receptors, resulting in the activation of G protein and second messengers that culminates in the generation of action potentials to relay this signal to the brain for odor recognition. This signaling cascade comprises the primary olfactory response. Odorant receptors comprise the largest multigene family identified to date, enabling the olfactory system to respond to an enormous pool of potential odorant molecules. This work focuses on the study of odorant receptors beyond the initiation of the primary olfactory response. The first set of experiments focuses on odorant …

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The Influence Of The Use Of Recommended Management Practices On Milk Production In Southeast Louisiana, Ronald David Bardwell Jan 2002

The Influence Of The Use Of Recommended Management Practices On Milk Production In Southeast Louisiana, Ronald David Bardwell

LSU Doctoral Dissertations

The dairy industry in Southeast Louisiana is one of the largest agricultural industries, with a gross farm value of over 74 million dollars. Much of the economy of Southeast Louisiana parishes depends on the dairy industry. Therefore, improvements in production efficiency and/or effectiveness would have an enormous impact on the parish economy. This study identifies the use of recommended practices by dairy producers, thus allowing educational programs to be focused on specific areas of greatest need. The purpose of the study was to describe the management practices of Southeast Louisiana dairy producers and to determine if a relationship existed between …

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Spatial Models Of Hawaiian Streams And Hawaiian Stream Fish Habital, James Elliott Parham Jan 2002

Spatial Models Of Hawaiian Streams And Hawaiian Stream Fish Habital, James Elliott Parham

LSU Doctoral Dissertations

A series of spatially based models of Hawaiian streams and stream fish habitats were developed to aid in the conservation of native fishes. The spatial models focused on the quantification of habitat for native fishes at three levels within a spatial hierarchy. First, at the reach level, the models classified the major geomorphological features of a stream and its watershed to determine the distribution of fish habitat within the different sections of the stream. The distribution of habitat was combined with habitat suitability criteria and the migratory abilities of the native fishes to quantify available habitat and predict expected community …

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Polyamines As Olfactory Stimuli In Goldfish, Shane Howell Rolen Jan 2002

Polyamines As Olfactory Stimuli In Goldfish, Shane Howell Rolen

LSU Master's Theses

The effects of polyamines as odorants to goldfish olfactory receptors were investigated by in vivo electrophysiological recordings. Electro-olfactogram (EOG) recordings indicated that polyamines (putrescine, cadaverine and spermine) are potent olfactory stimuli for goldfish with estimated electrophysiological thresholds of 10-100nM, similar to that for L-arginine, the most stimulatory amino acid. Although thresholds were similar, the magnitude of the EOG responses to intermediate and high concentrations of polyamines dwarfed those to amino acids and single amine containing compounds (amylamine and butylamine). The EOG responses to 0.1mM putrescine, cadaverine and spermine were, respectively, 4.2x, 4.3x and 10.3x that of the standard, 0.1mM L-arginine. …

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Costs And Benefits Of Daphnia Antipredator Behavior And Consequences On Community Stability, Wiebke Johanna Boeing Jan 2002

Costs And Benefits Of Daphnia Antipredator Behavior And Consequences On Community Stability, Wiebke Johanna Boeing

LSU Doctoral Dissertations

Predator-prey interactions are an important factor in energy transfer through food webs. To estimate effects of altered energy flow caused by costs and benefits of antipredator defenses and to study their implications for community stability, I used the planktivorous fish - Chaoborus - Daphnia system. In the laboratory, I found that clonal variance of Daphnia antipredator defenses was high, and that behavioral, morphological, and life-history defenses were uncoupled. To estimate the costs and benefits of antipredator defenses in the presence of predators, I conducted lake-enclosure (1-m diameter x 7-m deep) experiments in the field, taking advantage of two features of …

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The Matson And Mayville (M&M) Seizure Scale: An Assessment Of Psychological And Environmental Variables Contributing To Seizure Activity In Persons With Mental Retardation, Erik Andrew Mayville Jan 2002

The Matson And Mayville (M&M) Seizure Scale: An Assessment Of Psychological And Environmental Variables Contributing To Seizure Activity In Persons With Mental Retardation, Erik Andrew Mayville

LSU Doctoral Dissertations

Seizure activity can be debilitating across a number of physical, social, occupational, and personal domains. Given the deficits in all of these areas frequently present in persons with mental retardation, the control and elimination of seizures is a primary goal for individuals with both mental retardation and epilepsy. Antiepileptic medication can reduce seizure activity. However, this intervention often carries with it a range of untoward side effects that may adversely affect clients over what is typically a long-term treatment regimen. Over the last 20 years, literature has emerged emphasizing the importance of environmental variables in the initiation and maintenance of …

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A Model For Evaluation Of Selected Compositions For Unaccompanied Solo Trumpet According To Criteria Of Serious Artistic Merit, Michael Craig Bellinger Jan 2002

A Model For Evaluation Of Selected Compositions For Unaccompanied Solo Trumpet According To Criteria Of Serious Artistic Merit, Michael Craig Bellinger

LSU Doctoral Dissertations

This document presents a pilot study for evaluating the serious artistic merit of unaccompanied solo trumpet literature. The model for use in the study was derived from the efforts of two wind band literature researchers, Acton E. Ostling, Jr. and Jay W. Gilbert. Ostling wrote his dissertation in 1978 and Gilbert replicated and updated the research in 1993. The primary element of the Ostling and Gilbert studies was a carefully defined collection of ten criteria used to evaluate the quality of each work. A 5-point Likert scale was the unit of measurement. The outcome of this adaptation was a rank …

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The Role Of Cysteine 230 And Lysine 238 Of Biotin Carboxylase In The Deprotonation Of Biotin And Synthesis Of Bisubstrate Analogy Inhibitor Of Carboxyltransferase, Keith Logan Levert Jan 2002

The Role Of Cysteine 230 And Lysine 238 Of Biotin Carboxylase In The Deprotonation Of Biotin And Synthesis Of Bisubstrate Analogy Inhibitor Of Carboxyltransferase, Keith Logan Levert

LSU Doctoral Dissertations

Acetyl-CoA carboxylase catalyzes the first step in the synthesis of fatty acids. The Escherichia coli form of the enzyme consists of a biotin carboxylase protein, a biotin carboxyl carrier protein, and a carboxyltransferase protein. This enzyme uses the cofactor biotin as a carboxyl carrier. In order for the carboxylation of biotin to occur, biotin must be deprotonated at its N-1 position. It has been proposed that the active site residues cysteine 230 and lysine 238 act as an acid-base pair to deprotonate biotin. To test this hypothesis, site-directed mutagenesis was used to mutate cysteine 230 to alanine (C230A) and lysine …

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Markov Models To Estimate And Describe Survival Time And Experience In Cohorts With High Euthanasia Frequency, Giselle Louise Hosgood Jan 2002

Markov Models To Estimate And Describe Survival Time And Experience In Cohorts With High Euthanasia Frequency, Giselle Louise Hosgood

LSU Doctoral Dissertations

Unique to survival analysis of veterinary clinical data is classification of observations from euthanized animals. The first study highlighted limitations of Kaplan-Meier product limit analysis (KM) of veterinary clinical data. Three data sets with different outcome proportions (alive, lost-to-follow-up, dead due to disease, dead due to other, euthanized due to disease, euthanized due to other) were used. Different classifications of observations from euthanized animals caused inconsistent conclusions of significant differences between strata within data sets. At times, ranking of median survival time estimates for strata was reversed. The KM was found inappropriate to evaluate observations from euthanized animals. This finding, …

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Hydrodynamics And Freshwater Diversion Within Barataria Basin, Dongho Park Jan 2002

Hydrodynamics And Freshwater Diversion Within Barataria Basin, Dongho Park

LSU Doctoral Dissertations

In order to understand the physical processes in the Barataria estuary, a previously developed two-dimensional, depth-integrated hydrodynamic model is applied to simulate estuarine processes. The equations for conservation of mass and momentum predict specific physical processes when forced by tidal and salinity variations at the open boundaries, wind forcing patterns, precipitation and evaporation over the model domain, and freshwater runoff as point sources. This study is focused on examining the impact of freshwater dispersion from the freshwater sources. Thus, a hydrologic model was developed to estimate runoff. Furthermore grid size was reduced, a new advective code added, and baroclinic effects …

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Superfetation In Beef Cattle, Joel Andrew Carter Jan 2002

Superfetation In Beef Cattle, Joel Andrew Carter

LSU Doctoral Dissertations

Although superfetation has been reported in cattle and other species, there is considerable skepticism as to its existence due to the lack of clear evidence in these reports. Other explanations such as embryonic diapause or differential growth of twins have been suggested as more accurate descriptions of the cases reported as superfetation. The hypothesis of this study is that if a viable pregnancy can ensure maternal recognition in cattle, an asynchronous embryo can develop in a more chronologically advanced uterine environment. The objective was to produce superfetation by (1) ovulation induction and artificial insemination (AI) of pregnant cows and (2) …

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American Transcendental Vision: Emerson To Chaplin, Bill R. Scalia Jan 2002

American Transcendental Vision: Emerson To Chaplin, Bill R. Scalia

LSU Doctoral Dissertations

Ralph Waldo Emerson's publication of Nature in 1836 began a process of creating a new condition of American thinking, severed from European cultural and intellectual influences. The subsequent lectures The American Scholar and The Divinity School Address furthered this process, calling for an original American literature. Emerson's writing called consistently for poets with the ability to "see" past the material, apparent world to the world of eternal forms, which shaped nature in accordance with a divine moral imperative. Through this connection, man-as-poet would discover God in himself. In short, Emerson effectively transferred divinity from Unitarian doctrine to the individual, thereby …

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Adoption Of Best Management Practices In The Louisiana Dairy Industry, Noro C. Rahelizatovo Jan 2002

Adoption Of Best Management Practices In The Louisiana Dairy Industry, Noro C. Rahelizatovo

LSU Doctoral Dissertations

The traditional view of the agricultural community as a good steward of the environment has been challenged by increasing concerns about the complex relationship between agricultural production activities and environmental quality. Agriculture provides a large range of products to satisfy human needs. It has also been singled out as major source of water pollution. Largely improved surface water quality has been assessed in the U.S. since the enactment of the Clean Water Act. However, efforts to reduce water pollution continue, targeting discharges from identifiable sources of water pollution and diffused discharges from nonpoint sources. Agricultural producers are encouraged to voluntarily …

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Beta-Galactosidase As A Marker Of Ischemic Injury And A Mechanism For Viability Assessment In Porcine Liver Transplantation., Shawn D. St Peter, Charles J. Imber, Inigo Lopez De Cenarruzabeitia, James Mcguire, Tim James, Richard Taylor, Peter J. Friend Jan 2002

Beta-Galactosidase As A Marker Of Ischemic Injury And A Mechanism For Viability Assessment In Porcine Liver Transplantation., Shawn D. St Peter, Charles J. Imber, Inigo Lopez De Cenarruzabeitia, James Mcguire, Tim James, Richard Taylor, Peter J. Friend

Manuscripts, Articles, Book Chapters and Other Papers

Glycohydrolases are a group of enzymes contained predominantly within lysosomes, which are released during Kupffer cell activation or death. One of these, beta-galactosidase, has been proposed as a marker of ischemia-reperfusion injury in the liver because Kupffer cell activation represents a primary event in the injurious reperfusion cascade. In this study, we compared B-galactosidase with more traditional indicators of liver injury and function in a porcine model of liver preservation. Porcine livers were allocated into two groups: group C (n = 5), preserved in University of Wisconsin solution by standard cold storage for 24 hours, and group W (n = …

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The Garden Of Eden Account: The Chiastic Structure Of Genesis 2-3, Roberto Ouro Jan 2002

The Garden Of Eden Account: The Chiastic Structure Of Genesis 2-3, Roberto Ouro

Andrews University Seminary Studies (AUSS)

No abstract provided.

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Discrimination Of Cardiac Health And Disease By Assessment Of Heart Rate Variability: Wavelet Vs. Fast Fourier Transformation, Jusonda Leray Derouen Jan 2002

Discrimination Of Cardiac Health And Disease By Assessment Of Heart Rate Variability: Wavelet Vs. Fast Fourier Transformation, Jusonda Leray Derouen

LSU Master's Theses

The autonomic nervous system (ANS) modulation of the heart is of clinical importance because of its relevance to risk of life threatening arrhythmic events. Decomposition of heart rate variability (HRV) has been used to quantify ANS control of the heart. The traditional method for frequency analysis has involved the use of fast Fourier transformation (FFT). However, heart rate data typically violate assumptions of the FFT. Therefore, the assessment of HRV may benefit from other, potentially more suitable, mathematical approaches. For example, the discrete wavelet transformation (DWT) appears to have promise with respect to its ability to discriminate between healthy and …

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Evaluation Of Bacillus Thuringiensis Transgenic Field Corn For Management Of Louisiana Corn Pests, Boris A. Castro Jan 2002

Evaluation Of Bacillus Thuringiensis Transgenic Field Corn For Management Of Louisiana Corn Pests, Boris A. Castro

LSU Doctoral Dissertations

Efficacy of Bt corn hybrids expressing an insecticidal delta-endotoxin through different transformation events was evaluated in Louisiana. Efficacy levels were determined for southwestern corn borer (SWCB), Diatraea grandiosella Dyar; sugarcane borer (SCB), Diatraea saccharalis (F.); corn earworm (CEW), Helicoverpa zea (Boddie); and fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith). Insect (neonates and third instars) susceptibility was evaluated on Bt and non-Bt corn plants (V6 and R1 stages) in field plots and plant tissue in laboratory studies. Bt corn hybrids with MON810 and CBH351 transformation events sustained significantly (P < 0.05) less injury caused by SWCB, SCB, and FAW during infestations at mid-whorl stage. SWCB, SCB, and CEW infestations during silking stage were significantly reduced in Bt hybrids with the MON810 event. However, CEW infestations …

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A Game Theoretic Analysis Of U.S. Rice Exports Under Alternative Japanese And South Korean Policy Scenarios, Dae-Seob Lee Jan 2002

A Game Theoretic Analysis Of U.S. Rice Exports Under Alternative Japanese And South Korean Policy Scenarios, Dae-Seob Lee

LSU Doctoral Dissertations

As a result of the Uruguay Round (UR), the impact on the international rice market is profound. In addition, another round of the WTO trade negotiations has started and the impacts of potential policy changes on rice trade are unknown. The major U.S. benefit of the UR has been the access to the Japanese market. However, the U.S. share of this import market has been unstable and the share of Korean rice market is zero percent. Therefore, this study attempts to analyze the potential implication of U.S. rice exports to Japan and Korea. The Japanese and Korean rice economies as …

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