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Decomposition And Entomological Associations Of Swine In Louisiana Micro-Environments, Rachael Ann Farris Jan 2014

Decomposition And Entomological Associations Of Swine In Louisiana Micro-Environments, Rachael Ann Farris

LSU Master's Theses

Flies are commonly used as forensic indicators of an approximate time of death. This measurement of postmortem interval is influenced by factors such as climate and the environment in which the remains are placed. Each environment has its own set of influences that can accelerate or hinder the rate of decomposition. Remains left on dry land will decompose at a faster rate than remains in water due to the accessibility of the remains to scavengers and necrophagus insects. This research serves to provide a start to research into decomposition in the swamp environment of southern Louisiana. Three fetal pigs were …

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G-Box Model For The Fate Of Emerging Contaminants In Soil, Eileen Cranfield Jan 2014

G-Box Model For The Fate Of Emerging Contaminants In Soil, Eileen Cranfield

LSU Master's Theses

Pesticides applied to agriculture fields move and react into the soil system. The objective of this research was to develop a model that uses the natural soil processes (diffusion, advection, or reaction type processes in multiple phases) to track pesticides and other emerging contaminants (EMCONs) in the soil over space and time. The model separates the soil into a series of boxes with soil processes passing through and into the boxes. With a system of equations developed from these processes, the model produces a gradient concentration profile, hence the Gradient Box, or G-box Model. The model is first tested against …

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Effect Of Different Alarm Interfaces On Controller Response, Aritra Datta Jan 2014

Effect Of Different Alarm Interfaces On Controller Response, Aritra Datta

LSU Master's Theses

Pipelines transport millions of barrels of petroleum products every day. Oil and gas pipelines have become important assets of the economic development of almost any country. Government regulations or internal policies regulate the safety of the assets for the population and environment where these pipelines run. Various strategies and technologies have been introduced for monitoring pipelines, but the most common technology to protect pipelines from occasional hazardous incidents is Computational Pipeline Monitoring (CPM). This technique collects and gathers information from the field related to pressures, flows, and temperatures to estimate the hydraulic behavior of the product being transported. Using the …

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Assessment Of Age At Weaning For Post-Contact Maya Of Tipu, Belize, Using Stable Carbon, Nitrogen, And Oxygen Isotope Ratios, Chaney Hiers Jan 2014

Assessment Of Age At Weaning For Post-Contact Maya Of Tipu, Belize, Using Stable Carbon, Nitrogen, And Oxygen Isotope Ratios, Chaney Hiers

LSU Master's Theses

Age at weaning was assessed for a post-Spanish contact Maya population, the Tipu, by sampling 25 individuals (20 subadults less than seven years of age and five females from 18 to 45 years of age). Whole ribs, for younger subadults, and rib fragments, for older subadults and adults, were sampled for stable nitrogen, carbon, and oxygen isotope ratios. Five lines of evidence were used to assess age at weaning: stable carbon composition from collagen (δ13Ccol), stable nitrogen composition from collagen (δ15Ncol), stable carbon composition from apatite (δ13Cap), difference in collagen and apatite composition (Δ13Cap-col), and stable oxygen composition from apatite …

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Quantifying The Impact Of Hurricanes, Mid-Latitude Cyclones And Other Weather And Climate Extreme Events On The Mississippi-Alabama Barrier Islands Using Remotely Sensed Data, Rebekah Danielle Jones Jan 2014

Quantifying The Impact Of Hurricanes, Mid-Latitude Cyclones And Other Weather And Climate Extreme Events On The Mississippi-Alabama Barrier Islands Using Remotely Sensed Data, Rebekah Danielle Jones

LSU Master's Theses

Recent high-profile hurricanes have demonstrated the destructiveness of extreme events on coastal landscapes to the world. Barrier islands across the planet are disappearing, exposing vulnerable coastal cities to the damage caused by extreme events. Growing resolve among scientists regarding climate change's connection to tropical cyclones heightens the concern around intensifying extremes and landscape dynamics. This study uses more than 600 Landsat images to examine the role of extreme events on barrier island morphology on four of the Mississippi-Alabama barrier islands from 1972-2014. Each island, West Ship Island (WSI), East Ship Island (WSI), Petit Bois Island (PBI), and Sand Island, was …

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Memory, Memorial, James Kimura-Green Jan 2014

Memory, Memorial, James Kimura-Green

LSU Master's Theses

My thesis exhibition investigates concepts of memory and memorial. These are fueled by feelings of yearning, longing, and nostalgia. We allow memories to linger. I believe we try to strengthen these memories, encase them and tuck them away deep in our minds. These memories create in our psyche psychological memorials. Like physical memorials, our memories too deteriorate and crumble over time. We fill in the gaps to the point where it is unknown just how true these memories are. At times I think that mine are now idealized and idyllic then they really were. The paintings in my exhibit are …

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Uptake And Deposition Of Pyrogenic And Petrogenic Pahs On Spartina Alterniflora, Yasmin Mohammad Jan 2014

Uptake And Deposition Of Pyrogenic And Petrogenic Pahs On Spartina Alterniflora, Yasmin Mohammad

LSU Master's Theses

Saline marshes dominated by Spartina alterniflora were impacted by MC252 crude oil along Louisiana’s shoreline. Two locations were evaluated in this study; a lightly oiled, saline marsh near Port Fourchon, LA and a less saline, heavily oiled marsh near Bay Jimmy in the Barataria Basin, LA. Objectives of this study were to develop a method to extract polycyclic aromatic hydrocarbons (PAHs) from Spartina leaves and to compare and contrast the relative uptake and deposition of petrogenic and pyrogenic PAHs in Spartina leaves. A three-step sequential extraction procedure was developed for the extraction and analysis of PAHs on Spartina leaves. In …

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Oxygen Isotope Composition Of Phosphate Along Vertical Weathering Profiles That Developed On Igneous Rocks: Testing Modern Analogues For Identifying Terrestrial Life In Ancient Paleosols, Dustin Warn Boyd Jan 2014

Oxygen Isotope Composition Of Phosphate Along Vertical Weathering Profiles That Developed On Igneous Rocks: Testing Modern Analogues For Identifying Terrestrial Life In Ancient Paleosols, Dustin Warn Boyd

LSU Master's Theses

Life on Earth began in its early oceans before moving on to land. Determining the exact timing of an established biosphere on land, however, has been elusive, due largely to the lack of either fossil or chemical evidence on land deposits. Here I test a hypothesis that the activity of land biota can be recorded in the oxygen isotope composition of phosphate in weathering profiles developed on igneous parent rocks. Igneous rock contains phosphate (PO43-), which is readily utilized for biological activities during soil development. The oxygen in PO43- does not readily exchange its oxygen …

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Drugged Paranoia And Warlust, Nathan Pietrykowski Jan 2014

Drugged Paranoia And Warlust, Nathan Pietrykowski

LSU Master's Theses

Drugged Paranoia and Warlust are stories of human depravity and violence that happened on an abandoned U.S. military base in the rural world of Indiana. These tales are told through a series of prints, drawings, animation and a comic. Scenes of bombings, mass graves, and drug overdoses are presented as humorous cartoons in playful colors to subvert the viewer into exploring imagery that discusses serious and somewhat bleak issues. The work in this exhibition is both satire of absurd events and trying to find meaning amongst madness.

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Adopting Star Plot For Visualization Of High Dimensional Multivariate Data, Shabana Sangli Jan 2014

Adopting Star Plot For Visualization Of High Dimensional Multivariate Data, Shabana Sangli

LSU Master's Theses

The Star Plot is one of popular methods for visualization of multivariate data. This method displays each data record as a star-shaped icon by mapping all variables (dimensions) on radiating rays (axes) originated from a single point. The number of such icons is equal to the number of data items (records). As the number of dimensions and the size of data set increase, Star Plot visualization soon becomes too cluttered because many rays have to be accommodated within small circular area and individual icons also become too small. To overcome these problems associated with visualization of high-dimensional multivariate data, we …

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Application Of Tubular Crossflow Microfiltration In Harvesting Microalgae, Mostafa Khademi Jan 2014

Application Of Tubular Crossflow Microfiltration In Harvesting Microalgae, Mostafa Khademi

LSU Master's Theses

Separation of microalgal cells from culture medium is a challenging phase of algal production. Application of microfiltration as Stage 1 harvesting technology to pre-concentrate algal suspension from 0.2 g-dry/L to 10 g-dry/L (1% solids) prior to the final dewatering stage by centrifugation (Stage 2) was studied in this research. A bench-scale filtration setup with three tubular crossflow membrane modules (pore sizes: 0.05 µm, 0.1 µm, 0.5µm) equipped with data acquisition systems was constructed. In phase-1 experiments, the influence of algal species and the size of particles in the culture media on the filterability of microalgae were studied. It was found …

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Playschool, James S. Nord Jan 2014

Playschool, James S. Nord

LSU Master's Theses

Playschool is heavily influenced by my tactile way of learning. Each sculpture is a visual way of communicating my story. Traditionally, words are the primary tools used in learning and communication. However, from a very early age I discovered that my auditory processing disability and dyslexia made expressing ideas through words and the written language very difficult. It was a challenge for me to understand how words fit together to make compete sentences, and I struggled throughout my education to find a successful means of communicating my thoughts and ideas about the world around me. What came naturally to me …

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Journalism And The "Dark Arts" - A Comparative Study Of British And American Media Ethic Codes Against The Backdrop Of The British Phone Hacking Scandal, Paromita Saha Jan 2014

Journalism And The "Dark Arts" - A Comparative Study Of British And American Media Ethic Codes Against The Backdrop Of The British Phone Hacking Scandal, Paromita Saha

LSU Master's Theses

The British phone hacking scandal in 2011 raised questions about the influence of powerful media conglemorates, most notably, Rupert Murdoch’s News Corporation, on the culture of the media and democracy on both sides of the Atlantic. Both American and British media are the world’s leading examples of a free market press built on the same ideological foundations. This study argues that the phone hacking scandal calls for a revised and nunanced look at the differences and similarities between the American and British media systems. This comparative analysis uses British and American news media ethic codes as an unit of analysis. …

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Less Class, More Sass!, Amanda Lee James Jan 2014

Less Class, More Sass!, Amanda Lee James

LSU Master's Theses

Less Class, More Sass! is a visual soundtrack to the crass jokes, hairy faces and smelly wardrobes of my disorderly, and politically incorrect friends. These young men and women have mutated into a ragged crew of personified sasquatches to tell a collection of stories about coming of age in the American punk and metal music subcultures.

In this series of prints the characters grow from aimlessly rebellious youths into hopeless but happy young adults, ashamed of their desires for a nice neighborhood and a steady job. While thrashing through a sea of self-destructive tendencies, each character slowly finds their inner …

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Cyanobacteria Harmful Algal Blooms In South Louisiana Estuaries : A Synthesis Of Field Research, Management Implications, And Outreach, Emily Anne Smith Jan 2014

Cyanobacteria Harmful Algal Blooms In South Louisiana Estuaries : A Synthesis Of Field Research, Management Implications, And Outreach, Emily Anne Smith

LSU Doctoral Dissertations

Estuaries are biologically productive and important habitats for several fisheries. However, human intervention has separated many estuaries from their needed freshwater source and the commonly used solution is to use diversions to regulate the flow. This episodic increase in nutrients into estuaries has sometimes led to the formation of freshwater cyanobacteria HABs (CyanoHABs). The goal of this dissertation was to look at a field research study of phytoplankton bloom dynamics; management implications for cyanobacteria entering estuaries; and an outreach effort in relation to residents knowledge about cyanobacteria and algae. The first study compared the phytoplankton bloom dynamics, specifically CyanoHABs, in …

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Adult Offender Recidivism Rates: How Effective Is Pre-Release And Vocational Education Programing And What Demographic Factors Contribute To An Offenders Return To Prison, James K. Bueche, Jr. Jan 2014

Adult Offender Recidivism Rates: How Effective Is Pre-Release And Vocational Education Programing And What Demographic Factors Contribute To An Offenders Return To Prison, James K. Bueche, Jr.

LSU Doctoral Dissertations

The primary purpose of this study was to determine if the Louisiana Department of Public Safety and Corrections’ 100 hour pre-release program and vocational education had a significant impact on offender recidivism. Additionally, a model of predicating offender recidivism using demographic data was another aspect of the study. Offenders in the study were 404 offenders who completed the pre-release program, 404 offenders who completed vocational education and 808 offenders who composed the control group. All offenders were released from prison in the year of 2010, and if they returned to prison between their release and December 31, 2013, they were …

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Heidegger, Metaphor, And The Essence Of Language, Joel Meservy Jan 2014

Heidegger, Metaphor, And The Essence Of Language, Joel Meservy

LSU Master's Theses

In this thesis, I address the question of Heidegger’s rejection of metaphor, alleging most of the commentary on this rejection has failed to confront its substance. In particular, I focus on two different interpretations, one given by Paul Ricoeur and the other by Jacques Derrida. Both of these accounts place Heidegger’s rejection in a model of language structured by the sign relation; however, I contend Heidegger rejects metaphor precisely in order to overcome this model of language. Heidegger's few references to metaphor occur within attempts to rethink the very nature of our being-in-the-world and our relationship to language; that is, …

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Species Composition And Spatial Ecology Of Amazonian Understory Mixed-Species Flocks In A Fragmented Landscape, Karl Mokross Jan 2014

Species Composition And Spatial Ecology Of Amazonian Understory Mixed-Species Flocks In A Fragmented Landscape, Karl Mokross

LSU Doctoral Dissertations

With the ongoing advance of the agricultural frontier in the Amazon basin, it is inevitable that heterogeneous landscapes will play a key role in conservation. These landscapes are mostly composed of patchworks of small forest fragments, secondary forests and roads. Conservation, however must take species interactions into consideration as they play a pivotal part the maintenance of several biological processes in the tropics. One of the most conspicuous interspecific interactions are seen in mixed-species flocks of birds, which in the Amazon, represent one of the best organized systems of bird aggregations. In this research, I assess how flock spatial behavior …

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The Effect Of Modifying The Higher-Order Structure Of Plant High-Affinity Phosphate Transporters, Elena Batista Fontenot Jan 2014

The Effect Of Modifying The Higher-Order Structure Of Plant High-Affinity Phosphate Transporters, Elena Batista Fontenot

LSU Doctoral Dissertations

Phosphorus is an essential nutrient taken up by plants in the form of phosphate and is a component of key molecules, such as ATP, DNA, and RNA, and is one of the most frequently limiting macronutrients for plant growth. More than 80 % of phosphorus found in soil exists as non-inorganic forms and is unavailable for plant uptake, demonstrating the importance for genes induced to cope with phosphate starvation, including high-affinity phosphate transporters (Phts). Phts are membrane-localized transporters involved in the transport of phosphate and arsenate and have a high capacity for transporting phosphate in areas where phosphate concentrations are …

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Between Nihilism And Transcendence : Albert Camus' Dialogue With Nietzsche And Dostoevsky, Sean Derek Illing Jan 2014

Between Nihilism And Transcendence : Albert Camus' Dialogue With Nietzsche And Dostoevsky, Sean Derek Illing

LSU Doctoral Dissertations

This dissertation examines the impact of Fyodor Dostoevsky and Friedrich Nietzsche on the development of Albert Camus’ political philosophy. The innovation of the present study is in the attempt to offer a substantive examination of Camus’ dialogue with Nietzsche and Dostoevsky. To the extent that connections between these writers have been discussed, it has been in the general context of modern thought or it has focused on overlapping literary themes. This project emphasizes the political dimensions of these connections. In addition to re-interpreting Camus’ political thought, the aim is to clarify Camus’ struggle with transcendence and to bring renewed attention …

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Influence Of Aedes Aegypti Saliva On The Vertebrate Host Response To Dengue Virus, Michael Kevin Mccracken Jan 2014

Influence Of Aedes Aegypti Saliva On The Vertebrate Host Response To Dengue Virus, Michael Kevin Mccracken

LSU Doctoral Dissertations

Dengue virus (DENV) is maintained in a primarily anthroponotic cycle between humans and the mosquito, Aedes aegypti. Investigations into DENV infection of the vertebrate host generally do not account for the contribution of vector saliva, an inherent part of the mosquito-borne viral inoculum. Feeding by mosquitoes on vertebrate hosts is initiated by probing, which results in physical damage to the skin and vasculature, and the simultaneous introduction of DENV and saliva into the skin. Saliva contains many individual proteins with the potential to modulate host hemostasis and immune responses, thereby facilitating blood feeding and virus transmission. As exogenous antigens, both …

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Application Of Choice-Based Conjoint Analysis To Determine Consumers' Preferences And Willingness To Pay For Grass Fed Beef In The United States, Franklin Fernando Vaca Moran Jan 2014

Application Of Choice-Based Conjoint Analysis To Determine Consumers' Preferences And Willingness To Pay For Grass Fed Beef In The United States, Franklin Fernando Vaca Moran

LSU Doctoral Dissertations

U.S. consumption of beef has declined during the last three decades. Consumer preferences have shifted toward products that are considered healthy, environmentally friendly and obtained through sustainable production methods. Because of the characteristics of grass-fed beef production, consumers are becoming more interested in grass-fed beef products than conventional beef products. A choice-based experiment was used to assess consumer’s preferences for grass-fed beef. A national online survey was conducted in May 2012 and the information from 4000 respondents was collected from the entire U.S. The respondents were divided in two groups of similar size: grass-fed beef eaters, comprised by the respondents …

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Adaptive Divergence And Speciation Across Depth In A Caribbean Candelabrum Coral, Carlos Andrés Prada Montoya Jan 2014

Adaptive Divergence And Speciation Across Depth In A Caribbean Candelabrum Coral, Carlos Andrés Prada Montoya

LSU Doctoral Dissertations

Since Darwin, biologists wonder how organisms cope with environmental variation, why there are so many species, and how species form. In my dissertation, I explore how species of long-lived, clonal reef organisms originate across depth gradients. In Chapter 2, I evaluate the strength of depth to isolate populations by comparing the genes and morphologies of pairs of depth-segregated populations of the candelabrum coral Eunicea flexuosa across the Caribbean. Eunicea flexuosa is a long-lived clonal cnidarian that associates with an alga of the genus Symbiodinium. Genetic analysis revealed two depth-segregated lineages, each genetically well-mixed across the Caribbean. Survivorship data, combined with …

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The Effects Of Using Morphophonic Faces As A Method For Teaching Sight Words To Low-Performing Kindergartners, Ashley Alexandra Brown Jan 2014

The Effects Of Using Morphophonic Faces As A Method For Teaching Sight Words To Low-Performing Kindergartners, Ashley Alexandra Brown

LSU Master's Theses

Five kindergarten subjects who had no known disabilities, but were identified as low beginning readers received intervention using both Plain Word Cards (PWC) and pictured word cards, termed MorphoPhonic Faces (MPF). A group of eight words were presented as printed word cards and a comparable group of eight words were presented as MPF. Results revealed that MPF did not hold an advantage for learning and retaining sight words compared to the plain print words. Improvements in sight word training corresponded in time with improved skills underlying the alphabetic principle, including phonological awareness skills and letter-sound learning, as well as emerging …

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Structural And Kinetic Investigations Of 15-Lipoxygenase-2, Matthew James Kobe Jan 2014

Structural And Kinetic Investigations Of 15-Lipoxygenase-2, Matthew James Kobe

LSU Doctoral Dissertations

Evidence suggests that 15-lipoxygenase-2 (15-LOX-2) plays an important role in the progression of atherosclerosis. Due to the medical need to discover isoform specific inhibitors of 15-LOX-2, a novel human enzyme, our goal was to determine the 3-dimensional structure. Using bacterial expression, we were able to obtain a usable quantity of enzyme with a sufficient amount of the catalytic iron bound to the enzyme, however it was sensitive to cleavage by proteases. This led to a ratio of roughly 1:1 of cleaved and uncleaved protein after the final step of purification. Solving the crystal structure revealed the reason for the protease …

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A Mixed Methods Investigation Of Post-Secondary Students' Long Bone Anatomy Knowledge Retention Through Constructivism And The Works Of Vesalius, Jennifer F. Tynes Jan 2014

A Mixed Methods Investigation Of Post-Secondary Students' Long Bone Anatomy Knowledge Retention Through Constructivism And The Works Of Vesalius, Jennifer F. Tynes

LSU Doctoral Dissertations

Understanding human long bone anatomy is an important concept to master for post-secondary students that major in medical fields since skeletal structures assist in locating a pulse, conducting clinical procedures, and identifying injection sites. Skeletal anatomy is also used to name structures associated with other organ systems like veins, arteries, and nerves. This explanatory mixed methods study explores post-secondary students’ knowledge retention and perception of various constructivist activities that utilize historical approaches based on the works of Vesalius, the Father of Modern Anatomy to teach long bone anatomy. Three treatment groups and one controlled comparison group (n= 92) were provided …

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Enhancement Of Gulf Killifish, Fundulus Grandis, Fitness And Reproduction, Joshua Thomas Patterson Jan 2014

Enhancement Of Gulf Killifish, Fundulus Grandis, Fitness And Reproduction, Joshua Thomas Patterson

LSU Doctoral Dissertations

Gulf killifish, Fundulus grandis, shows promise for commercial development as a marine baitfish species. Significant markets for F. grandis already exist throughout the Gulf Coast, with the vast majority of supply coming from wild-harvests, which can be hampered by seasonal availability and inconsistent fish health and size. The genus Fundulus also represents an important group of model vertebrates for biological study. A recent review paper described this genus as the premier teleost model for environmental biology. New information generated as a result of the work contained in this dissertation may be more broadly applicable to sister species of F. grandis, …

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Residual Effect Of Herbicides Used In Pastures On Clover Establishment And Productivity, Angela Suzanne Laird Jan 2014

Residual Effect Of Herbicides Used In Pastures On Clover Establishment And Productivity, Angela Suzanne Laird

LSU Master's Theses

Field experiments in 2013 evaluated residual herbicide effects on ball (Trifolium nigrescens viv.) and white (Trifolium repens L.) clover. For the October planting, averaged across clovers, ground cover for 2,4-D plus aminopyralid and 2,4-D plus picloram averaged 4.4 and was less than for the nontreated (7.0). For the November and March plantings, ground cover for all herbicides was equivalent to the nontreated. Averaged across clover species and planting date, herbicide treatments except 2,4-D plus aminopyralid (4) resulted in ground cover 49/112 days after planting (DAP) equal to the non-treated (5.7). Lowest plant population 4 to 6 wk after Oct/Nov planting …

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Three Essays On U.S. Meat Goat Production: Goal Structure, Selection Of Breeding Stock, And Meat Goat Marketing, Narayan Prasad Nyaupane Jan 2014

Three Essays On U.S. Meat Goat Production: Goal Structure, Selection Of Breeding Stock, And Meat Goat Marketing, Narayan Prasad Nyaupane

LSU Doctoral Dissertations

This study investigates three major areas of U.S. meat goat production – goal structure, selection of breeding stock, and marketing, by using survey data received from U.S. meat goat producers. Of 1,600 producers surveyed, 584 usable responses were obtained with an adjusted response rate of 43%. The fuzzy pair-wise comparison method was used to determine producer goal structure. The results showed that profit maximization and leisure-related goals were highly considered goals and controlling weeds/vegetation and increasing farm size were the least considered goals by U.S. meat goat producers. A choice-based conjoint study was conducted to identify producer preferences for meat …

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A Contrast Of Hunter Characteristics And Attitudes Between Random And Convenience Samples In The 2010, 2012, And 2013 Surveys Of Louisiana Waterfowl Hunters, Lucien Jr. Paul Laborde Jan 2014

A Contrast Of Hunter Characteristics And Attitudes Between Random And Convenience Samples In The 2010, 2012, And 2013 Surveys Of Louisiana Waterfowl Hunters, Lucien Jr. Paul Laborde

LSU Doctoral Dissertations

I surveyed random (mail and internet panel surveys) and convenience samples (web surveys) of Louisiana waterfowl hunters following the 2009-2010, 2011-2012, and 2012-2013 seasons. I hypothesized significant differences in effort, success, satisfaction and demographics, but no difference in attitudes, in responses between random and convenience survey methods. I mailed to stratified random samples of 2,500 in 2010, 6,400 in 2012, and 2,500 each for mail and on-line internet panel response in 2013. An identical web survey, hosted each year during the same time period, facilitated open-access response. I received 1,676 usable responses in 2010 (727 mail and 949 web), 2,382 …

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