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The Emergence Of Challenging Behaviors In At-Risk Toddlers With And Without Autism Spectrum Disorder: A Cross-Sectional And Risk Factor Study, Jill Cherie Fodstad Jan 2011

The Emergence Of Challenging Behaviors In At-Risk Toddlers With And Without Autism Spectrum Disorder: A Cross-Sectional And Risk Factor Study, Jill Cherie Fodstad

LSU Doctoral Dissertations

Challenging behaviors including aggression, property destruction, stereotypy, and self injury occur at a high prevalence in individuals with Autism Spectrum Disorders (ASD). These behaviors are pervasive and chronic. Despite an increased probability and negative consequences, one area which has received little attention is the presence of challenging behaviors in infants and toddlers with ASD. Furthermore, there is a dearth of information identifying early age trends in the emergence of challenging behaviors and associated risk factors. The purpose of this investigation was to utilize a validated measure, the Baby and Infant Screen for Children with aUtIsm Traits - Part 3, to …

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A Study Of Horn Fly, Haematobia Irritans (L.) (Diptera: Muscidae), Target-Site Sensitivity, Susceptibility, And Resistance Management At Selected Sites In Louisiana, Cole David Younger Jan 2011

A Study Of Horn Fly, Haematobia Irritans (L.) (Diptera: Muscidae), Target-Site Sensitivity, Susceptibility, And Resistance Management At Selected Sites In Louisiana, Cole David Younger

LSU Doctoral Dissertations

The purpose of the first study was to evaluate the effectiveness of the use of a mid-season avermectin pour-on to cattle for managing OP resistance in horn fly populations at the Rosepine Louisiana Agricultural Research Station. During an eight year study, ivermectin treatments were made three times (when the treatment threshold of less than five weeks of control was reached), and in the following years, the number of weeks of control increased to 9 to 10 weeks each time. The purpose of the second study was to test a two-year OP/one-year pyrethroid rotation strategy as a strategy for maintaining susceptibility …

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Molecular Mechanisms Of Bacillus Thuringiensis Resistance In The Sugarcane Borer, Yunlong Yang Jan 2011

Molecular Mechanisms Of Bacillus Thuringiensis Resistance In The Sugarcane Borer, Yunlong Yang

LSU Doctoral Dissertations

The sugarcane borer, Diatraea saccharalis, is a major target pest of transgenic corn expressing Bacillus thuringiensis (Bt) proteins in many areas of the U.S. mid-southern region. A Cry1Ab-resistant (Cry1Ab-RR) strain of D. saccharalis has been developed from a single two-parent family-line. To examine the molecular mechanisms of the Cry1Ab resistance in this insect strain, cDNAs of five types of potential candidate genes related to Bt resistance were sequenced using reverse transcriptase polymerase chain reaction (RT-PCR) and 5’ rapid amplification of cDNA end (5’ RACE). The Bt resistance candidate genes examined included three trypsins (DsTRYs), three chymotrypsins (DsCHYs), three aminopeptidases N …

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Comparative Biogeography Of The Arid Lands Of Central Mexico, Jesus Abraham Fernandez Jan 2011

Comparative Biogeography Of The Arid Lands Of Central Mexico, Jesus Abraham Fernandez

LSU Doctoral Dissertations

Most biogeographic studies on the Mexican biota have assumed that the dramatic climate cycles of the Pleistocene epoch and the prominence of the Trans-Mexico Volcanic Belt have played major roles in the origin and diversification of species. Here the pylogenetics and biogeography of four codistributed rodent species were studied. In each case, a phylogenetic hypothesis for the taxon and allied species using two mitochondrial (Cytochrome-b and 12S), and two nuclear genes (GHR and IRBP) was generated, appropriate taxonomic changes were recommended, and a temporal framework was generated to identify events that may have produced the phylogenetic pattern. Nelson’s woodrat Neotoma …

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Modeling Of First-Flush Reactor For Stormwater Treatment, Shaowei Sun Jan 2011

Modeling Of First-Flush Reactor For Stormwater Treatment, Shaowei Sun

LSU Master's Theses

Stormwater runoff is one of the most common sources of non-point source water pollution to lakes, rivers and estuaries. Nitrate-nitrogen in stormwater runoff is an important limiting factor to the eutrophication phenomenon. While most pollutants and nutrients, including nitrate-nitrogen, in stormwater are discharged into receiving waters during the first-flush period, no existing Best Management Practices (BMPs) are specifically designed to capture and treat the first-flush portion of urban stormwater runoff. In addition, nitrate-nitrogen removal rates of most existing BMPs are relatively low. This thesis presents results from both laboratory experiments and numerical modeling of nitrate-nitrogen removal in a designed first-flush …

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Microphytobenthos Of The Northern Gulf Of Mexico Hypoxic Area And Their Role In Oxygen Dynamics, Melissa Millman Baustian Jan 2011

Microphytobenthos Of The Northern Gulf Of Mexico Hypoxic Area And Their Role In Oxygen Dynamics, Melissa Millman Baustian

LSU Doctoral Dissertations

The presence or absence of microphytobenthos on the seafloor provides clues about whether benthic oxygen evolution contributes significantly to the oxygen budget of the hypoxic area in the northern Gulf of Mexico. Hypoxia (oxygen < 2 mg l-1) creates inadequate concentrations of dissolved oxygen to support most organisms, such as fish, shrimp and crabs, and occurs over large areas of the Louisiana continental shelf from spring through summer in most years. Oxygen production by benthic autotrophs may offset a decline in oxygen concentrations if there is a functioning community and sufficient light. I sampled three stations (14, 20 and 23 m depths) ~ 100 km west of the Mississippi River over three hypoxic annual cycles (2006 – 2008), and 11 stations along a 14 - 20 m contour on the shelf in late-July in 2006, 2007 and 2008. I used microscopy and high-performance liquid chromatography to estimate the biomass and composition of phytoplankton and microphytobenthos. The potential seasonal oxygen production was estimated in 2007 and 2008 by incubating coupled light/dark sediment cores and bottom water from two stations. The sediment community (cells > 3 um) differed from those in the water column and were frequently benthic pennate diatoms and filamentous cyanobacteria (58-88% seasonally and 1-99% in mid-summer). The concentration of microphytobenthic biomass was usually < 2.0 ug g dry sed-1, and various biotic parameters were influenced by light at the seafloor. Declines in dissolved oxygen over a seasonal cycle in 2007 and 2008 were affected more by the initial dissolved oxygen concentration than by the presence of microphytobenthos that could generate oxygen. The sediment (1.2 - 27.3 mmol O2 m-2 d-1, n = 97) and bottom-water (1.1 - 17.5 mmol m-2 d-1, n = 23) oxygen consumption rates were within the range of the few previously-reported data. This work adds to these data and also provides the only sediment oxygen consumption rates at fixed sites over seasonal time scales. These results provide critical input to three-dimensional, physical-biological models of oxygen dynamics for this hypoxic area.

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Preparation And Studies Of Ratiometric Fluorescent Chemosensors Based On The Attenuation Of Excitation Energy Transfer, Jiba Raj Acharya Jan 2011

Preparation And Studies Of Ratiometric Fluorescent Chemosensors Based On The Attenuation Of Excitation Energy Transfer, Jiba Raj Acharya

LSU Doctoral Dissertations

Molecular devices possessing pi-electron conjugated scaffold demonstrate unique capabilities as fluorescent chemosensors for the trace detection of analytes in a variety of environments. Important properties of these compounds such as charge transport and exciton migration, emission intensity etc. can be simply attenuated by external stimuli or analyte binding, leading to considerable changes in observable signals. The main goal of this Ph.D. dissertation was to study the possibility to control excitation energy migration in conjugated systems. Towards this goal, we designed surface-immobilized monodispersed oligo(p-phenylene ethynylene)s (OPEs) as a general basis for thin-film ratiometric fluorescent chemosensors. The sensor molecules have been functionalized …

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Comorbid Psychopathology In Children With Autism Spectrum Disorders - Cut-Off Scores For The Autism Specturm Disorders-Comorbidity For Children (Asd-Cc), Ryan Thomas Thorson Jan 2011

Comorbid Psychopathology In Children With Autism Spectrum Disorders - Cut-Off Scores For The Autism Specturm Disorders-Comorbidity For Children (Asd-Cc), Ryan Thomas Thorson

LSU Doctoral Dissertations

Once considered rare, Autism Spectrum Disorders (ASD) are increasingly becoming viewed as common disorders. Prevalence rates of ASD have increased drastically in recent years. Recent studies suggest comorbid psychopathology within ASD to be more common than previously thought. Though these deficits exist, specific instruments to diagnose psychopathology in this population do not yet exist. This highlights the underlying need for instruments to identify psychopathology in individuals with ASD. The aim of this study was to establish cut-off scores for the Autism Spectrum Disorder – Comorbidity for Children, an instrument designed to assess for comorbid psychopathology within individuals with ASD.

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Assessing Social Support In Children: Development And Initial Validation Of The Social Support Questionnaire For Children, Arlene Tayag Gordon Jan 2011

Assessing Social Support In Children: Development And Initial Validation Of The Social Support Questionnaire For Children, Arlene Tayag Gordon

LSU Doctoral Dissertations

Research examining risk and protective factors associated with Posttraumatic Stress Disorder (PTSD) in children has established social support as one of the strongest predictors of psychological health and overall adjustment post-traumatic event (Vigil & Geary, 2008). Greater perceived social support, generally, has been related to more positive outcomes in children (Borja & Callahan, 2008; Cryder, Kilmer, Tedeschi, & Calhoun, 2006; Pina, Villalta, Ortiz, Gottschall, Costa, & Weems, 2008). Understanding the impact of social support on coping with traumatic events such as natural disasters or exposure to community violence is limited by the lack of psychometrically sound measures. The current study …

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Structural And Mechanistic Studies On The Interactions Between S-Adenosyl Methionine (Sam) And The Sam-I Riboswitch, Wei Huang Jan 2011

Structural And Mechanistic Studies On The Interactions Between S-Adenosyl Methionine (Sam) And The Sam-I Riboswitch, Wei Huang

LSU Doctoral Dissertations

The chemical and physical properties of RNAs create a diverse functional portfolio to influence the functional outcomes of genomes. One scheme is to recognize cognate small molecule metabolites and to adopt distinct conformations to adjust the gene expression. Segments of messenger RNAs (mRNAs) that adopt this scheme are called riboswitches. As potential targets for designing novel antibiotics and portable regulatory devices for synthetic biology, riboswitches have gained increasing attention. The key to understand the functionality encoded in a riboswitch sequence requires unveiling the mechanism of transmitting ligand recognition to gene expression. In this work, both computational and experimental techniques are …

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The Multi-Institutional Study Of Leadership At Lsu: How Participation In Specific Student Groups Affects One's Leadership, Courtney Elizabeth Lambert Jan 2011

The Multi-Institutional Study Of Leadership At Lsu: How Participation In Specific Student Groups Affects One's Leadership, Courtney Elizabeth Lambert

LSU Master's Theses

Through statistical examination of the Multi-Institution Study of Leadership (MSL), conducted at Louisiana State University during the Spring of 2010, quantitative research sought to determine if different leadership outcomes are produced through membership in religious student organizations, multi-cultural fraternities and sororities, social fraternities and sororities, and intercollegiate or varsity athletic groups. The MSL is theoretically based on the Social Change Model of Leadership Development and the leadership outcomes it assesses are consciousness of self, congruence, commitment, collaboration, common purpose, controversy with civility, citizenship, and change. It was discovered that students in religious student organizations score better on many leadership outcomes, …

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Blind Yield Detection In Steel Structure For Automatic Nondestructive Testing Using Ultrasonic Sensors, Hongting Zhang Jan 2011

Blind Yield Detection In Steel Structure For Automatic Nondestructive Testing Using Ultrasonic Sensors, Hongting Zhang

LSU Master's Theses

Detection of yield zones using nondestructive testing (NDT) technology for assessing the structural integrity of the existing steel buildings/bridges is extremely important. The average energy over the “effective echoes” (in “good” signal quality) is a robust feature for the yield detection in steel structures. Nevertheless, this average-energy feature extraction requires rigorous manual data-acquisition and human operation. Therefore, in this thesis, we make the first-ever attempt to design a totally-blind and automatic steel-structure yielddetection mechanism, which requires neither the a priori information about the signal nor the human effort in calibration, operation, or data analysis. This new scheme is built upon …

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The Baby And Infant Screen For Children With Autism Traits: A Proposed Critical Item Algorithm, Santino Vincent Lovullo Jan 2011

The Baby And Infant Screen For Children With Autism Traits: A Proposed Critical Item Algorithm, Santino Vincent Lovullo

LSU Doctoral Dissertations

Since its first description, the definition of autism has varied as a function of emphases on particular defining features, changes to the age of onset, and confusion with other disorders. However, a recurring theme has been the importance of social impairments with evidence that specific social symptoms, such as joint attention deficits, are predictive of autism within the first or second year of life. In addition to the core domains of impairment, autism is associated with various medical conditions, intellectual disability, comorbid psychopathology, and problem behavior. This is alarming considering that there may be a true increase in the disorder’s …

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Modeling The Population Effects Of Hypoxia On Atlantic Croaker (Micropogonias Undulatus) In The Northwestern Gulf Of Mexico, Sean Brandon Creekmore Jan 2011

Modeling The Population Effects Of Hypoxia On Atlantic Croaker (Micropogonias Undulatus) In The Northwestern Gulf Of Mexico, Sean Brandon Creekmore

LSU Master's Theses

The northwestern Gulf of Mexico currently experiences a large hypoxic area (“dead zone”) during the summer. While the local effects of hypoxia on organisms have been documented, the population-level effects are largely unknown. I developed a spatially-explicit, individual-based model to analyze how hypoxia effects on Atlantic croaker reproduction, growth, and mortality in the northwestern Gulf of Mexico could lead to population-level responses. The model follows the hourly growth, mortality, reproduction, and movement of individuals on a 300 x 800 spatial grid of 1 km2 cells for 100 years. Chlorophyll-a concentration, water temperature, and dissolved oxygen were specified daily for each …

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Situation Comedies And The Single Woman On Television, Ashli Leeann Dykes Jan 2011

Situation Comedies And The Single Woman On Television, Ashli Leeann Dykes

LSU Doctoral Dissertations

Through an historical overview of the never-married female character in twentieth century situation comedies and an in-depth analysis of three twenty-first century American sitcoms, this dissertation investigates how television creators, writers, producers, and actors have interpreted the figure of the single woman and attempted to make her appealing and acceptable to a broad viewing audience. Because of its traditionally family-friendly offerings and preponderance of female characters in comparison to other popular culture genres, the situation comedy presents a significant case study for the analysis of female representations on television. Through its encouraged identification with characters and portrayals of issues that …

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Rotational Strategy In Selected Works By Béla Bartók, Robert C. Keller Jan 2011

Rotational Strategy In Selected Works By Béla Bartók, Robert C. Keller

LSU Doctoral Dissertations

While James Hepokoski and Warren Darcy regard rotational form as “an overriding structural principle, an Urprinzip that in the instrumental genres may control the progress of movements organized according to more familiar Formenlehre categories such as sonata form or rondo”, in the dissertation that follows I propose a framework for rotational analysis that is sufficient as a self-standing analytical structure. This step back from the more familiar Formenlehre is necessary in Bartók’s post-tonal repertoire to avoid confusion with the generic expectations that often accompany labels such as principal theme, subordinate theme, exposition, development, recapitulation, etc. Also, as rotational form is …

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Droplet Motion On Miniaturized Ratchets, Jeong Tae Ok Jan 2011

Droplet Motion On Miniaturized Ratchets, Jeong Tae Ok

LSU Doctoral Dissertations

The main objective of this study is to evaluate the feasibility of using miniaturized asymmetric structures to move liquid droplets and understand the driving mechanism. We developed the fabrication process for large area topological ratchets with the period ranging from millimeter down to sub-micrometer using micromachining techniques. Non-wetting superhydrophobic surfaces were successfully fabricated using soft UV or thermal nanoimprint lithography, reactive ion etching by oxygen plasma, and chemical surface modification by fluorinated silane vapor deposition. An accurate and reproducible experimental setup equipped with high speed camera and automatic injection system was established. Image processing tools allowed us to obtain various …

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Integrated Modular Microfluidic System For Forensic Alu Dna Typing, Samuel Kimani Njoroge Jan 2011

Integrated Modular Microfluidic System For Forensic Alu Dna Typing, Samuel Kimani Njoroge

LSU Doctoral Dissertations

Driven by the numerous applications of genome-related research, fully integrated microfluidic systems have been developed that have advanced the capabilities of molecular and, in particular, genetic analyses. A brief overview on integrated microfluidic systems for DNA analysis is given in Chapter 1 followed by a report on micro-capillary electrophoresis (µCE) of Alu elements with laser-induced fluorescence (LIF) detection, in which the monomorphic Alu insertions on the X and Y chromosomes were utilized to detect male DNA in large female DNA background (Y: X = 1:19) without cell sorting prior to the determination. The polymorphic Alu loci with known restricted geographical …

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Oceanic Light Absorption Properties: Assessment And Characterization In The Southeastern Bering Sea Using Field And Satellite Observations, Puneeta Suresh Naik Jan 2011

Oceanic Light Absorption Properties: Assessment And Characterization In The Southeastern Bering Sea Using Field And Satellite Observations, Puneeta Suresh Naik

LSU Doctoral Dissertations

In recent decades the Bering Sea has been subjected to large climatic variability with cascading consequences on its productive marine ecosystem. Long-term as well as short-term monitoring is essential if we are to maintain its capability to supply the resources on which the national and local economy depend. Remote sensing together with in-situ and laboratory measurements of physical, biological and optical properties have considerable potential for monitoring and measuring the effects of climate-driven changes on this ecosystem. A major shortcoming to obtain accurate estimates of optically active components (such as colored dissolved organic matter, non-algal particulate matter, and phytoplankton) from …

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Marketing Forest-Based Ecotourism In Sri Lanka: Predicting The Ecotourism Behavior And Defining The Market Segment Through A Behavioral Approach, Polwattage K. Perera Jan 2011

Marketing Forest-Based Ecotourism In Sri Lanka: Predicting The Ecotourism Behavior And Defining The Market Segment Through A Behavioral Approach, Polwattage K. Perera

LSU Doctoral Dissertations

Tourism industry is one of the main drivers of the global economy and plays a key role in regional development. As negative environmental and socio-cultural impacts of mass tourism became apparent, the appeal of alternative forms of tourism, especially ecotourism, continued to gain a broad recognition. As a result, ecotourism became one of the fastest growing sectors in global tourism during the past decade. Being a fast-developing country with ample natural resources, Sri Lanka can benefit from adopting and promoting ecotourism. At present, Sri Lanka’s ecotourism resources remain largely under-utilized. With rising demand, ecotourism operators are under pressure to meet …

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Single-Molecule Detection And Microfluidics: Generating Systems For The In Vitro Diagnostics Of Stroke, Brandon M. Young Jan 2011

Single-Molecule Detection And Microfluidics: Generating Systems For The In Vitro Diagnostics Of Stroke, Brandon M. Young

LSU Master's Theses

There is currently no available molecular diagnostic test for stroke; the common modality for diagnosis consists of computed tomography or magnetic resonance imaging. Unfortunately, the use of these diagnostic regimens can delay proper therapeutic treatment, which requires administration within the first 3 h of a stroke event. We are developing a molecular assay that can report, in near real time and at the point-of-care, the presence or absence of biomarkers specifically targeted for the diagnosis of ischemic or hemorrhagic stroke. The proposed strategy uses blood-borne mRNAs that are either under-expressed or over-expressed as a result of tissue damage within the …

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Foldable Substrates For Micro-Ultrasonic Transducers, Karthik Balasubramanian Jan 2011

Foldable Substrates For Micro-Ultrasonic Transducers, Karthik Balasubramanian

LSU Master's Theses

Ultrasound has broad range of applications from underwater examination, nondestructive testing of materials and medical diagnosis and treatment. The ultrasonic transducer plays an vital role in determining the resolution, sensitivity, as well as other diagnostic capabilities of an ultrasonic imaging system. Current piezoelectric transducer which dominates the medical field has limited applications compared to the capacitive ultrasonic transducer. The capacitive transducer is easy to fabricate compared to the piezoelectric transducer. In this work, the fabrication of a foldable substrate for a capacitive ultrasonic transducer has been discussed. The foldable substrate was fabricated using an ultrathin silicon wafer which is 50 …

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Introduction And Establishment Of Cyrtobagous Salviniae Calder And Sands (Coleoptera: Curculionidae) For The Control Of Salvinia Minima Baker (Salviniaceae), And Interspecies Interactions Possibly Limiting Successful Control In Louisiana, Katherine A. Parys Jan 2011

Introduction And Establishment Of Cyrtobagous Salviniae Calder And Sands (Coleoptera: Curculionidae) For The Control Of Salvinia Minima Baker (Salviniaceae), And Interspecies Interactions Possibly Limiting Successful Control In Louisiana, Katherine A. Parys

LSU Doctoral Dissertations

Common salvinia, Salvinia minima Baker, is a floating aquatic invasive macrophyte that obstructs waterways and causes problems in wetlands across Louisiana and Texas. The salvinia weevil, Cyrtobagous salviniae Calder and Sands, has been released in over 14 countries around the world for the biological control of Salvinia spp. We successfully monitored the introduction and establishment of C. salviniae on S. minima in southern Louisiana between 2006 and 2010. Cyrtobagous salviniae significantly lowered the biomass of S. minima and increased the number of terminal buds damaged but had no significant impact on pH, dissolved oxygen, conductivity, surface temperature, percent of surface …

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Comparison Of The Age And Growth Of Red Snapper (Lutjanus Campechanus) Amongst Habitats And Regions In The Gulf Of Mexico, Courtney Rose Saari Jan 2011

Comparison Of The Age And Growth Of Red Snapper (Lutjanus Campechanus) Amongst Habitats And Regions In The Gulf Of Mexico, Courtney Rose Saari

LSU Master's Theses

The Gulf of Mexico (GOM) red snapper stock has been exploited since the mid 1800s; yet it is still one of the most economically important fisheries in the GOM. Red snapper have been managed as a unit stock and are currently overfished, but perhaps no longer undergoing overfishing. Habitat varies greatly throughout the GOM and while numerous studies have aged red snapper, none have simultaneously compared the age and size structure and growth rates among standing and toppled oil and gas platforms with natural habitats. The objectives of this study were to examine the size and age structure and growth …

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Comparison Of Disk Diffusion, Agar Dilution, And Broth Microdiultion For Antimicrobial Susceptibility Testing Of Five Chitosans, Lin Jiang Jan 2011

Comparison Of Disk Diffusion, Agar Dilution, And Broth Microdiultion For Antimicrobial Susceptibility Testing Of Five Chitosans, Lin Jiang

LSU Master's Theses

Chitosan is a polysaccharide biopolymer with excellent biocompatibility, biodegradability, and low toxicity, which allows for potential wide applications. Recently, antimicrobial activities of chitosan against foodborne pathogens have been studied; many used disk diffusion to determine the activity. However, this method is unable to obtain minimal inhibitory concentrations (MICs), i.e., not quantitative. The objective of this study was to compare disk diffusion with agar dilution and broth microdilution, two quantitative methods used routinely in clinical laboratories, to determine MICs of chitosan against foodborne pathogens. Five chitosan compounds with molecular weights ranging between 43 and 1,100 kDa were tested against 36 representative …

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Influence Of Low Sonication Intensities At Different Temperatures On Acid Tolerance, Bile Tolerance, Protease Activity And Growth Of Yogurt Culture Bacteria Lactobacillus Delbrueckii Ssp. Bulgaricus And Streptococcus Salivarius Ssp. Thermophilus, Marvin L. Moncada Reyes Jan 2011

Influence Of Low Sonication Intensities At Different Temperatures On Acid Tolerance, Bile Tolerance, Protease Activity And Growth Of Yogurt Culture Bacteria Lactobacillus Delbrueckii Ssp. Bulgaricus And Streptococcus Salivarius Ssp. Thermophilus, Marvin L. Moncada Reyes

LSU Master's Theses

Streptococcus salivarius ssp. thermophilus and Lactobacillus delbrueckii ssp. bulgaricus are dairy cultures widely used in the dairy industry. Low sonication intensity condition is a non-destructive technique that uses sound waves to cause cavitation in aqueous solutions and may improve the permeability of membranes, speed up the transfer of substrates and promote cellular growth and propagation. The objective of this study was to determine the effect of low sonication intensities at different temperatures on acid tolerance, bile tolerance, protease activity and growth of the two dairy cultures. The cultures were freshly thawed and suspended in 0.1% peptone water and 18 ml …

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Island Hunting: A Field Guide, Kit French Jan 2011

Island Hunting: A Field Guide, Kit French

LSU Master's Theses

The Island Hunter Association and this field guide are elaborate constructions that assist you in looking at familiar places in a new way. Following the methods and procedures I’ve outlined in this field guide you will become an expert in tracking the many incarnations of Islands. Fact and fiction, real and psychological, Islands are all around.

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Parallel Surrogate Detection In Large-Scale Simulations, Lei Jiang Jan 2011

Parallel Surrogate Detection In Large-Scale Simulations, Lei Jiang

LSU Master's Theses

Simulation has become a useful approach in scientific computing and engineering for its ability to model real natural or human systems. In particular, for complex systems such as hurricanes, wildfire disasters, and real-time road traffic, simulation methods are able to provide researchers, engineers and decision makers predicted values in order to help them to take appropriate actions. For large-scale problems, the simulations usually take a lot of time on supercomputers, thus making real-time predictions more difficult. Approximation models that mimic the behavior of simulation models but are computationally cheaper, namely "surrogate models", are desired in such scenarios. In the thesis, …

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Use Of Condensed Tannins Supplementation And Inorganic Copper As Deworming Agents In Naturally Infected Ewes And Lambs, Moara De Santana Martins Jan 2011

Use Of Condensed Tannins Supplementation And Inorganic Copper As Deworming Agents In Naturally Infected Ewes And Lambs, Moara De Santana Martins

LSU Master's Theses

Sheep production is an important socioeconomic activity for the small producers and it can represent their primary income source. Gastrointestinal parasites have become the principal limiting factor for this industry around the world, especially because of the anthelmintic resistance phenomenon that has been increasing worldwide. The negligent use of anthelmintics has been reported as the main factor in the development of resistance. Among the parasites that infect sheep, H. contortus is considered the most harmful and also the parasite responsible for the fastest development of nematode resistance in small ruminants. Due to the economic impact this parasite may bring upon …

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The Relationship Between Family Structure And Social Anxiety In Young Adults, Brandie Michelle Wagner Jan 2011

The Relationship Between Family Structure And Social Anxiety In Young Adults, Brandie Michelle Wagner

Honors Capstones

No abstract provided.

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