Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Louisiana State University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 7891 - 7920 of 13619

Full-Text Articles in Entire DC Network

Chemistry Of Rhenium(I) Tricarbonyl Complexes Of Biomedical Relevance, Theshini Perera Jan 2010

Chemistry Of Rhenium(I) Tricarbonyl Complexes Of Biomedical Relevance, Theshini Perera

LSU Doctoral Dissertations

fac-[ReI(CO)3L]n complexes serve as models for short-lived fac-[99mTcI(CO)3L] imaging tracers. Dangling groups on L, needed to achieve desirable biodistribution, complicate the NMR spectra, which are not readily understood. In fac-[ReI(CO)3L]+ with less complicated L, NH groups (exo-NH) projecting toward the L face sometimes showed an upfield shift attributable to steric shielding of the exo-NH group from the solvent by the chelate rings. To investigate whether exo-NH groups in six-membered rings exhibit the same effect and whether the …

Go to article

Modeling The Impacts Of Pulsed Riverine Inflows On Hydrodynamics And Water Quality In The Barataria Bay Estuary, Anindita Das Jan 2010

Modeling The Impacts Of Pulsed Riverine Inflows On Hydrodynamics And Water Quality In The Barataria Bay Estuary, Anindita Das

LSU Doctoral Dissertations

Eutrophication and coastal wetland loss are the major environmental problems affecting estuaries around the world. In Louisiana, controlled diversions of the Mississippi River water back into coastal wetlands are thought to be an important engineering solution that could reverse coastal land loss. There are concerns, however, that freshwater diversions may increase nutrient inputs and create severe eutrophication problems in estuaries and wetlands adjacent to the diversion sites. My dissertation research concerns modeling the effects of the observed and hypothetical freshwater diversion discharges on the hydrodynamics, salinity and water quality in the Barataria estuary, a deltaic estuary in south Louisiana. This …

Go to article

Developing Tools To Identify Factors That Limit Production In Coastal Marshes, Vanessa Danielle Tobias Jan 2010

Developing Tools To Identify Factors That Limit Production In Coastal Marshes, Vanessa Danielle Tobias

LSU Doctoral Dissertations

Marsh loss is a problem in many areas around the world. In Louisiana’s coastal marshes, where Spartina patens is the most common plant, restoration and management seek to slow wetland loss rates that average approximately 77.4 km2/year. To combat the problem, scientists and managers require tools to determine local causes and evaluate the effectiveness of management techniques. Current methods for identifying factors that limit productivity in marshes are too time-consuming or expensive for wide-spread, regular use. Critical values of elemental concentrations in plant tissue are widely used to diagnose mineral deficiencies and toxicities in agricultural crops, however. I used the …

Go to article

Resistant Starch And Sodium Butyrate Reduce Body Fat In Rodents, Kirk Adam Vidrine Jan 2010

Resistant Starch And Sodium Butyrate Reduce Body Fat In Rodents, Kirk Adam Vidrine

LSU Master's Theses

Introduction: Obesity levels in the United States have significantly increased in the last forty years. Lifestyle and pharmacological treatments have been largely ineffective in treating obesity for most people. Both Resistant Starch (RS) and Dietary Sodium Butyrate (SB) are bioactivties which have shown the ability to decrease body fat levels of rodents without increasing physical activity or decreasing energy intake. Glucagon-like peptide 1 (GLP-1) and peptide YY (PYY) are gut hormones that may be involved in increased energy expenditure at a cellular level with dietary RS and SB. Objective: To discern if SB and RS both work through the increase …

Go to article

Toxicity Interaction Of Fipronil And Imidacloprid Against Coptotermes Formasanus, Pan Luo Jan 2010

Toxicity Interaction Of Fipronil And Imidacloprid Against Coptotermes Formasanus, Pan Luo

LSU Master's Theses

The Formosan subterranean termite, Coptotermes formosanus Shiraki (Isoptera: Rhinotermitidae), is considered one of the most destructive structural pests in the world, especially in warm and humid areas. Insecticide application is an effective strategy in termite control. In recent years, non-repellent insecticides have become popular for their high efficacy due to delayed toxicity and horizontal transfer. Fipronil (registered name Termidor®) and imidacloprid (registered name Premise®) have been applied to the perimeter of millions of houses in the United States. Fipronil and imidacloprid have different modes of action which may produce a synergistic effect when combined. There have been no studies on …

Go to article

Accuracy Of Srs Dose Delivery Using The Tomotherapy Hi-Art System, Catherine Leigh Batte Jan 2010

Accuracy Of Srs Dose Delivery Using The Tomotherapy Hi-Art System, Catherine Leigh Batte

LSU Master's Theses

Purpose: To quantify the accuracy and precision of both target positioning and dose delivery for intracranial radiosurgery delivered with the TomoTherapy Hi-Art System using a non-invasive immobilization device. Methods: Techniques developed by Vinci et al (2007) were refined for the measurement of dose distributions in each principal plane using a CIRS head phantom. Pieces of Gafchromic EBT2 film were cut and digitized using a template developed by Vinci et al (2007). A plan was created for a 2 cm diameter x 2 cm long cylindrical target in the TomoTherapy treatment planning system (TPS) version 3.2.1. Intentional misalignments of 5 mm …

Go to article

Evolutionary Dynamics Of Bird Populations In Southeast Asia, Haw Chuan Lim Jan 2010

Evolutionary Dynamics Of Bird Populations In Southeast Asia, Haw Chuan Lim

LSU Doctoral Dissertations

A confluence of factors determines the biological diversity we observe today. Here, I conducted three investigations of the historic, geographic and ecological factors that shaped the morphological and genetic diversity of rainforest birds in Southeast Asia. (1) In the Oriental Dwarf Kingfisher (Ceyx erithaca) complex, the birds are highly polymorphic in plumage. Quantitative analysis of this variation indicated that a large proportion of birds in Sumatra, the Malay Peninsula and Borneo have plumages intermediate between the northerly black form from mainland Asia and the southerly rufous form from Java. Phylogenetic analyses indicated that birds from continental Southeast Asia (north of …

Go to article

Analysis Of Media Agenda-Setting Effect On Consumer Confidence In The Safety Of The U.S. Food System Across Consumer Segments, Abhishek Bhagwat Bharad Jan 2010

Analysis Of Media Agenda-Setting Effect On Consumer Confidence In The Safety Of The U.S. Food System Across Consumer Segments, Abhishek Bhagwat Bharad

LSU Master's Theses

Recent food recalls and food scares in the United States have increased consumers’ risk perceptions about food borne illness and decreased their confidence in the safety of the U.S. food supply. Results from a continuous tracking of consumer confidence and media coverage of food safety events over a 67 week period between May 2008 and August 2009 are reported in the study. Factor analysis is performed on consumer characteristic statements to identify seven factors. Factor scores for these seven factors are used as inputs in a consumer segmentation procedure. A two step segmentation approach, hierarchical cluster analysis followed by partition …

Go to article

Particle Analysis In Infrared Laser Desorption And Ablation, Xing Fan Jan 2010

Particle Analysis In Infrared Laser Desorption And Ablation, Xing Fan

LSU Doctoral Dissertations

The fundamental physical processes of mid infrared laser ablation in the context of laser desorption mass spectrometry were investigated. Understanding the mechanisms of infrared laser desorption and ablation can lead to improvements in these techniques and expand their applications. Particles were generated from glycerol irradiated at atmospheric pressure using a tunable infrared laser at wavelengths between 2.6 and 3.8 µm. The wavelength dependence of size distributions of ablated particles was measured. The particle concentration roughly tracked the infrared absorption spectrum of glycerol and the mean particle size tracked the inverse of the IR absorption. A novel approach, post ablation particle …

Go to article

The Role Of Physical And Ecological Barriers In The Diversification Process Of Birds In The Guiana Shield, Northern Amazonia, Luciano Nicolás Naka Jan 2010

The Role Of Physical And Ecological Barriers In The Diversification Process Of Birds In The Guiana Shield, Northern Amazonia, Luciano Nicolás Naka

LSU Doctoral Dissertations

Understanding the factors that influence the formation and location of distribution boundaries is important for the study of evolutionary processes. These factors can be studied effectively at suture zones, regions containing disproportionally high numbers of contact zones (CZs) and phylogeographic breaks (PBs). Together, CZs and PBs offer complementary views of current and historical factors that separate or bring together populations of closely related taxa. For my dissertation, I studied a suture zone in northern Amazonia, where ~100 pairs of taxa replace one another geographically. I analyzed the Guiana Shield avifauna, using bird distributions to redefine the boundaries of the Guianan …

Go to article

Early Life History Dynamics Of The Fish Community In The Atchafalaya River Basin, B. Thorpe Halloran Jan 2010

Early Life History Dynamics Of The Fish Community In The Atchafalaya River Basin, B. Thorpe Halloran

LSU Doctoral Dissertations

Seasonal overbank flooding in systems like the Atchafalaya River Basin (ARB) provides the opportunity for fishes in the mainstem to access off-channel areas on the floodplain. Typically, newly inundated floodplain habitats allow adult fishes to add biomass, avoid predation, and potentially, to reproduce. However, in systems like the ARB, the timing, duration, and magnitude of flooding infrequently coincides with known reproductive periods of many fishes assumed to be floodplain-dependent. To quantify the level of floodplain-exploitative fish reproduction in the ARB, I collected larval and juvenile fish with a variety of sampling gear that allowed estimates in both ultra-shallow (< 2-m) and continuously-inundated habitats (headwater lakes, canals, and bayous). A suite of water quality parameters, river stage, flow, and hours of daylight were used to gauge the influence of environmental phenomena on age-0 abundance during both inundation and drawdown. The results of the 19-month study suggest that many taxa do not rely on the floodplain to ensure high survivorship. Interestingly, the reproductive ecologies of many ARB fishes appeared to be largely independent of widespread connectivity. Although an increasing hydrograph appeared to enhance reproductive output, the interannual timing and intensity of spawning showed limited variability. Larval densities were also contrasted with the microcrustacean zooplankton (copepods and cladocerans) population to assess if a potential food limitation existed in the weeks and months following hatching. During the study, increased zooplankter abundance was typically preceded by elevated river-floodplain connectivity. Conversely, as floodwaters receded during the summer, zooplankton abundance declined to lowest levels observed during the study. Overall, there was limited synchronous overlap between the hatchlings of most fish taxa and their zooplankter prey. This could have potentially resulted in starvation and reduced annual recruitment. Yet, my analysis of the factors that regulate larval fish abundance in the ARB suggest that the density of zooplankton was highly significant although high numbers of larvae and zooplankton rarely coincided. Finally, I compared the intraday (morning vs. afternoon) density and mean length of larval fish at fixed sample sites. The results suggest that once-daily ichthyoplankton collections may fail to provide accurate density and length measurements for young fish populations.

Go to article

Traditionalism And Temporal Variance In Predictors Of Gendered Homicide, 1970-2000, Julia Maria D'Antonio-Del Rio Jan 2010

Traditionalism And Temporal Variance In Predictors Of Gendered Homicide, 1970-2000, Julia Maria D'Antonio-Del Rio

LSU Doctoral Dissertations

During the second half of the 20th century, changes in gender relations and equality have led to substantial shifts in many aspects of American life. As one feature of society, the relationship between social structure and crime has also changed with the shift from traditional to nontraditional views of gendered interaction. In particular, what were once thought to be invariant structural predictors of homicide may, in fact, have varying explanatory power over time; in particular, measurements of disadvantage and population structure may not equally affect men and women between 1970 and 2000. Therefore, the present study posits a transformation in …

Go to article

Augmented Breast Tumor Classification By Perfusion Analysis, Bruce Yu-Sun Lin Jan 2010

Augmented Breast Tumor Classification By Perfusion Analysis, Bruce Yu-Sun Lin

LSU Doctoral Dissertations

Magnetic resonance and computed tomography imaging aid in the diagnosis and analysis of pathologic conditions. Blood flow, or perfusion, through a region of tissue can be computed from a time series of contrast-enhanced images. Perfusion is an important set of physiological parameters that reflect angiogenesis. In cancer, heightened angiogenesis is a key process in the growth and spread of tumorous masses. An automatic classification technique using recovered perfusion may prove to be a highly accurate diagnostic tool. Such a classification system would supplement existing histopathological tests, and help physicians to choose the most optimal treatment protocol. Perfusion is obtained through …

Go to article

An Experimental Study Of Surfactant Enhanced Waterflooding, Paulina Metili Mwangi Jan 2010

An Experimental Study Of Surfactant Enhanced Waterflooding, Paulina Metili Mwangi

LSU Master's Theses

Surfactants have a variety of applications in the petroleum industry due to their remarkable ability to lower the oil-water interfacial tension and alter wettability. However, surfactant adsorption on rock surfaces has severely crippled this means of improving oil recovery due to the high cost associated with the large quantities of surfactant needed. A previous experimental study by Ayirala (2002) reported the development of mixed wettability using a nonionic surfactant. At this mixed-wet state he was able to recover about 94% of the original oil in place. The underlying motivation of this study was to achieve such high recoveries without using …

Go to article

Fabrication, Characterization, Modeling And Testing Of A Nanostructured Bulk Thermoelectric Cooler, Dinesh Pinisetty Jan 2010

Fabrication, Characterization, Modeling And Testing Of A Nanostructured Bulk Thermoelectric Cooler, Dinesh Pinisetty

LSU Doctoral Dissertations

New generation micro/nano devices are emerging to monitor, control and act on living systems. Particularly, in the field of cryobiology, there is a need to monitor and control temperature at the cellular level. An important step towards achieving this aim is to fabricate a novel bulk nanostructured thermoelectric cooler (TEC). As a first step towards achieving efficient localized control of temperature in biological systems, Bismuth-telluride (Bi2Te3) and Antimony-Telluride (Sb2Te3) arrays of nanowires and nanotubes were fabricated, characterized and modeled. A thermal conductivity model originally developed by Dames and Chen for superlattice nanowires was extended to nanotubes. Based on this model …

Go to article

Characterization Of Quantitative Traits Using Association Genetics Tetraploid And Genetic Linkage Mapping In Diploid Cotton (Gossypium Spp.), Ashok Badigannavar Jan 2010

Characterization Of Quantitative Traits Using Association Genetics Tetraploid And Genetic Linkage Mapping In Diploid Cotton (Gossypium Spp.), Ashok Badigannavar

LSU Doctoral Dissertations

Cotton (Gossypium spp.) is the most extensively used natural fiber in the textile industry. Understanding the genetic diversity, population structure and marker trait associations are of great importance in marker assisted selection. Microsatellite, AFLP and TRAP markers were used to construct a linkage map with 94 F2 diploid individuals derived from a cross between G. arboreum x G. herbaceum. A total of 606 polymorphic markers gave rise to 37 linkage groups covering a total of 1109cM with an average distance of 7.92cM between each loci. Discriminant analysis identified three markers each for petal color and seed fuzziness, and four markers …

Go to article

Generative Spirituality And The Parent-Child Relationship, Carol Catherine Leblanc Jan 2010

Generative Spirituality And The Parent-Child Relationship, Carol Catherine Leblanc

LSU Doctoral Dissertations

This research study includes examining and exploring the processes underlying faith, parent, and child relationships. The project is based on the premises that parents and children mutually influence each other and that faith is important, beneficial, and facilitative, particularly in an increasingly individualistic society. Qualitative methods were used to uncover a depth of information regarding the intersection of faith, parent, and child. Interview data were utilized from a purposive national sample of 30 highly religious families. Four major themes emerged from the analysis. These themes include Concerns about Contemporary Culture, Commitment to Family Life, Close and Connected Family Relationships, and …

Go to article

Designing A Whey Protein Based Material As A Scaffold For Bone Regeneration, Mia Dvora Jan 2010

Designing A Whey Protein Based Material As A Scaffold For Bone Regeneration, Mia Dvora

LSU Doctoral Dissertations

A novel gel material was designed and optimized for use as a bone tissue regeneration scaffold. Whey protein isolate (WPI), the primary component of the material, underwent considerable testing for conformity to a set of known material characteristics required for application in bone regeneration. WPI gels of different compositions were fabricated by thermally inducing gelation of high-concentration protein suspensions, and characterized for compressive strength and modulus, hydration swelling and drying properties, mechanical behavior change due to polysaccharide additives, and intrinsic pore network structure. The gels were also tested for their compatibility with MC3T3-E1 cells, and interactions such as cell adhesion, …

Go to article

The Theoretical Learning Impact Of A Summer Engineering Program Curriculum For Underrepresented Middle School Students, Vaneshette Teshawn Henderson Jan 2010

The Theoretical Learning Impact Of A Summer Engineering Program Curriculum For Underrepresented Middle School Students, Vaneshette Teshawn Henderson

LSU Doctoral Dissertations

This mixed methods, exploratory and confirmatory study was designed to evaluate the theoretical learning impact of a innovative summer engineering program curriculum would have on its audience, middle school minority students. Several theories were used to develop the innovative curriculum including Human Constructivism, cultural learning styles of African Americans, visual spatial learning and graphic design learning. This study was completed in two phases: evaluation of existing middle school summer engineering program curriculum for best practices and development of innovative curriculum and expert evaluation of the innovative curriculum. Three existing programs from across the country participated in this study. Five engineering …

Go to article

Retrotransposon-Mediated Genomic Dynamism, Thomas Joshua Meyer Jan 2010

Retrotransposon-Mediated Genomic Dynamism, Thomas Joshua Meyer

LSU Doctoral Dissertations

Retrotransposons, a class of mobile elements, generate new copies in host genomes using RNA intermediates and reverse transcribing new copies into new loci. As such, the copy numbers of many active retrotransposon families increase dramatically over time. For example, ~42% of the human genome is comprised of retrotransposon sequences. The insertion activity of these elements, and the high degree of identity existing between the copies, have been shown to significantly impact the structure and stability of genomes, contributing in various ways from exon shuffling to inversions and from non-allelic homologous recombination to altering gene regulation. The two most successful mobile …

Go to article

Antisense Silver Nanoparticles For Photo-Activated Gene Silencing, Paige Kathleen Brown Jan 2010

Antisense Silver Nanoparticles For Photo-Activated Gene Silencing, Paige Kathleen Brown

LSU Master's Theses

The unique properties of noble metal nanoparticles, which include tunable electronic and photonic characteristics, contribute to their potential as novel delivery vectors with enhanced drug stability, cell uptake, and photo-activated functionalities. Silver, as one of best surface-enhancing substrates available for bulk nanostructure synthesis, is a prime choice for investigations of metal nanohybrids as antisense therapy vehicles with special surface plasmon resonance (SPR) enabled functional attributes. The singular photonic properties of silver nanoparticles (SNPs) may contribute to ease of delivery confirmation and in situ photo-activation of protected cargo packed on particle surfaces. Here we show the synthesis and characterization of 40-80nm …

Go to article

The Role Of Bone Marrow In Siv Pathogenesis Using The Rhesus Macaque Model, Amy F. Gill Jan 2010

The Role Of Bone Marrow In Siv Pathogenesis Using The Rhesus Macaque Model, Amy F. Gill

LSU Doctoral Dissertations

CD4+ memory T cells are depleted in mucosal tissues post human immunodeficiency virus (HIV) and simian immunodeficiency virus (SIV) infection without restoration to pre-infection levels during progressive course of disease. Bone marrow (BM) as a hematopoietic organ has been investigated for hematologic and morphologic changes during HIV infection. However, BM as a primary lymphoid tissue during HIV infection has been poorly characterized. We proposed BM was also a site of CD4+ T cell depletion driven by increased apoptosis during progressive HIV disease. We chose to investigate bone marrow changes using the premier non-human primate Rhesus macaque SIV model for the …

Go to article

Antimicrobial Susceptibility, Genotypic Characterization, And Molecular Detection Of Vibrio Parahaemolyticus And Vibrio Vulnificus From Louisiana Oysters, Feifei Han Jan 2010

Antimicrobial Susceptibility, Genotypic Characterization, And Molecular Detection Of Vibrio Parahaemolyticus And Vibrio Vulnificus From Louisiana Oysters, Feifei Han

LSU Doctoral Dissertations

Members of the genus Vibrio are Gram-negative, halophilic bacteria that inhabit warm coastal and estuarine waters worldwide. Among pathogenic vibrios, Vibrio parahaemolyticus is the leading cause of seafood-related illnesses and Vibrio vulnificus causes the highest number of seafood-related deaths in the United States. Moreover, according to the U.S. Centers for Disease Control and Prevention, the incidence of infections of the two vibrios due to the consumption of oysters has shown a sustained increase since 2001, indicating further measures are needed to prevent human Vibrio illness. In this dissertation research, a total of 622 Vibrio isolates, consisting of 252 V. parahaemolyticus …

Go to article

Upland Nesting Waterfowl Population Responses To Predator Reduction In North Dakota, Matthew R. Pieron Jan 2010

Upland Nesting Waterfowl Population Responses To Predator Reduction In North Dakota, Matthew R. Pieron

LSU Doctoral Dissertations

Population growth for mallards (Anas platyrhynchos), and presumably other upland nesting ducks, in the Prairie Pothole Region is most sensitive to nest success, and nest success is most strongly influenced by predation. I evaluated the efficacy of reducing predator populations to improve nest success and increase local breeding populations of upland nesting ducks on township-sized (93.2 km2) management units in eastern North Dakota, USA, during 2005−2008. I also examined potential territorial limitations on local population growth for mallards. Trappers annually removed an average of 245 predators per trapped site. I monitored 7,489 nests on 7 trapped and 5 nontrapped sites, …

Go to article

Low Co-Cultivation Temperature At 20oc Improved Agrobacterium Tumefaciens-Mediated Transformation Of Tobacco Leaf Disks, Guiying Su Jan 2010

Low Co-Cultivation Temperature At 20oc Improved Agrobacterium Tumefaciens-Mediated Transformation Of Tobacco Leaf Disks, Guiying Su

LSU Master's Theses

I investigated the effect of co-cultivation temperature and binary Ti vectors on the fresh weight yield of leaf disks of tobacco (Nicotiana tabacum L. cv. Xanthi (nn, Smith) after Agrobacterium tumefaciens-mediated transformation. I concluded that the temperature at 20ºC during co-cultivation of leaf disks with A. tumefaciens was the most critical factor on the reproducible enhancement of fresh weight yield. The highest fresh weight increase and presumably transformation efficiency was achieved under the following experimental conditions: A. tumefaciens strain LBA4404 containing pLSU binary Ti vector was grown overnight at 28oC in liquid Agrobacterium medium and the concentration was adjusted to …

Go to article

Examination Of The Relationship Between Academic Achievement And Traumatic Stress Following Hurricane Katrina, Audrey Baumeister Jan 2010

Examination Of The Relationship Between Academic Achievement And Traumatic Stress Following Hurricane Katrina, Audrey Baumeister

LSU Doctoral Dissertations

Hurricane Katrina inflicted traumatic experiences on many children in New Orleans and the surrounding area. The literature has shown a significant relationship between Post Traumatic Stress Disorder (PTSD) symptoms and lowered academic achievement in children. This longitudinal study investigated the relationships between attendance, academic achievement, and PTSD symptoms following Hurricane Katrina. Participants were 343 mother-child dyads recruited from public and private schools within Orleans Parish, Jefferson Parish, and East Baton Rouge Parish 4-7 months following Hurricane Katrina. Children completed the UCLA PTSD Reaction Index, the BASC-2 Self Report of Personality, and the Hurricane-Related Traumatic Experiences (HURTE). Mothers completed the Childhood …

Go to article

A Study Of The Interactions Of Lipid Bilayers And Dendrimers Using Small Angle X-Ray Scattering And Freeze Fracture Transmission Electron Microscopy, Derek R. Dorman Jan 2010

A Study Of The Interactions Of Lipid Bilayers And Dendrimers Using Small Angle X-Ray Scattering And Freeze Fracture Transmission Electron Microscopy, Derek R. Dorman

LSU Doctoral Dissertations

Lipids are fundamental to all life forms, a key component of cell walls, and essential to proper respiratory function. They are amphiphilic molecules and readily form bilayers. Dendrimers are designer molecules that can be tailored to provide a variety of endgroup moieties, sizes, and charges. The interaction of liposomes and dendrimers can provide information on how medicine interacts with cells and an array of unique structures can be imagined from their assembly into superstructures. Polypropylenimine tetraamine (DAB-Am) and 1-directional arborol dendrimers have been studied in different molar concentrations with 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) bilayers. One-directional arborols are amphiphilic dendrimers with a hydrophilic …

Go to article

Dynamic Model Of Ecological Factors Impacting The Gulf Of Mexico Dead Zone, Jimmie Arnold Brumfield Ii Jan 2010

Dynamic Model Of Ecological Factors Impacting The Gulf Of Mexico Dead Zone, Jimmie Arnold Brumfield Ii

LSU Doctoral Dissertations

The industrial agriculture complex of the Mississippi River Drainage Basin has the positive effect of feeding more individuals with less land via the use of chemical nutrients, pesticides and drainage. The negative effects of the agricultural nutrient load are carried by the Mississippi River to the Gulf of Mexico. After the flood of 1927 the Flood Control Act of 1928 began changing the Mississippi River into a navigation and flood control project. While successful, the river was turned into a channel where nutrient input was discharged into the Gulf of Mexico. Nitrogen compounds discharged from the Mississippi are claimed to …

Go to article

Ancestral Determination From Foramen Magnum, Stephanie Marie Crider Jan 2010

Ancestral Determination From Foramen Magnum, Stephanie Marie Crider

LSU Master's Theses

Ancestry estimation is a crucial part of the biological profile creation in forensic anthropology. Without proper classification of ancestry, other aspects of the biological profile, such as stature, can be affected. Several techniques are used by forensic anthropologists to determine ancestry of unidentified remains. Some anthropologists believe the cranium to be an excellent indicator of ancestry (Rhine 1990). The focus of this research was to determine the utility of the foramen magnum region on the cranial base as a positive indicator of ancestry. Previous studies have explored the effectiveness of using the cranial base’s occipital condyles for ancestry assignment of …

Go to article

Staging Polemics: Charles Palissot, Voltaire, And The "Theatrical Event" In Eighteenth-Century France, Logan James Connors Jan 2010

Staging Polemics: Charles Palissot, Voltaire, And The "Theatrical Event" In Eighteenth-Century France, Logan James Connors

LSU Doctoral Dissertations

This dissertation explores the exciting world of eighteenth-century French dramatic writing, performance and criticism from the point of view of the theatrical spectator. Instead of focusing on one single genre or writer, I assemble the textual creation, performance, and criticism of certain “polemical” plays into what I term a “theatrical event.” This optic provides a holistic vision of theater and an accurate view of how drama underwent noticeable change due to playwrights’ political associations, public reactions to performance, and the emerging power of the periodical press. In sum, this project differs from previous studies by focusing on the increasing rhetorical …

Go to article

First Prev Next Last