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Solid-Phase Synthesis Of Asymmetrically Substituted Phthalocyanines, Sultan Sibel Erdem Jan 2008

Solid-Phase Synthesis Of Asymmetrically Substituted Phthalocyanines, Sultan Sibel Erdem

LSU Doctoral Dissertations

Phthalocyanines (Pcs) are excellent candidates for use as fluorophores for near-infrared (near-IR) fluorescent tagging of biomolecules and as photodynamic therapy (PDT) agents. Synthesis of Pcs with asymmetrical substitution on the periphery is often difficult due to the problems during the purification of the Pc mixtures obtained. The objective of this project is to design and synthesize chemically robust near-IR fluorophores for bioanalytical applications and to develop new synthetic methods for rapid synthesis of the target compounds. A novel synthetic route was developed utilizing a hydrophilic, polyethylene glycol-based (PEG) support with different types of linkers. The Pcs were functionalized with either …

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Novel Methods For The Control Of Phlebotomine Sand Flies (Diptera: Psychodidae), Thomas Michael Mascari Jan 2008

Novel Methods For The Control Of Phlebotomine Sand Flies (Diptera: Psychodidae), Thomas Michael Mascari

LSU Doctoral Dissertations

In arid and semi-arid parts of the Old World, Phlebotomus paptasi is a significant biting pest of man and is the primary vector of Leishmania major, the causative agent of zoonotic cutaneous leishmaniasis (ZCL). Phlebotomus papatasi exhibits a close association with the burrowing rodents that serve as the reservoirs of L. major. Rodent burrows are considered to be the primary habitat of immature P. papatasi in ZCL foci, and sand fly larvae have been observed feeding on rodent feces. In laboratory studies, five insecticides (diflubenzuron, novaluron, methoprene, pyriproxyfen, or ivermectin) were incorporated into the diet of Syrian hamsters and evaluated …

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The Zinc Induction Of Heme Oxygenase-1 Gene Promoter In Mouse Hepa Cells, Salim M. Alawneh Jan 2008

The Zinc Induction Of Heme Oxygenase-1 Gene Promoter In Mouse Hepa Cells, Salim M. Alawneh

LSU Doctoral Dissertations

Heme oxygenase-1 (HO-1) catalyzes the initial and rate-limiting reaction in heme catabolism (yielding equimolar quantities of iron, carbon monoxide, and biliverdin), which is further metabolized to bilirubin by biliverdin reductase. HO-1, an important enzyme with antioxidant and cytoprotective properties, functions against oxidative stress generated in response to heme and to various stress stimuli, such as zinc. The cytoprotective function of HO-1 is dependent on both the activities of the reaction products and on the inducibility of the heme oxygenase gene (hmox-1), which is regulated primarily at the level of gene transcription by two distal enhancers, E1 and E2. Characterization of …

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Novel Oncolytic Herpesviruses For Breast Cancer Treatment, Anna Israyelyan Jan 2008

Novel Oncolytic Herpesviruses For Breast Cancer Treatment, Anna Israyelyan

LSU Doctoral Dissertations

Oncolytic herpes simplex virus type-1 (HSV-1) has shown great potential as an effective agent for cancer therapy ¨C oncolytic virotherapy. To enhance oncolytic capabilities of previously reported agents, new oncolytic and fusogenic HSV-1 OncSyn and OncdSyn viruses were constructed based on wild type HSV-1 (F) strain. To provide for safety and tumor selectivity, the viruses carried a large deletion including one of the two ¦Ã134.5 genes. The ¦Ã134.5 gene, a major neurovirulence factor, was replaced by a gene cassette constitutively expressing the red fluorescent protein. Homologous recombination was utilized to transfer the fusogenic gBsyn3 mutation to the viral genome to …

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Effects Of Handedness On The Skull And Shoulder Bones, Michelle Lynn Osborn Jan 2008

Effects Of Handedness On The Skull And Shoulder Bones, Michelle Lynn Osborn

LSU Master's Theses

The unique configuration of the human clavicle and mastoid process suggests a functional connection between the head and shoulders in humans. The hypothesis in this study is that the clavicle, scapula and head form a functional complex and are interconnected by the sternocleidomastoid and trapezius muscles. In this complex, the trapezius muscles attach to the skull and become active when loads are carried. The sternocleidomastoid muscles are anchored to the clavicles; when loads are being carried, they act as guy ropes for the head, thereby keeping the head from being extended by the force of the contracting trapezius muscles. These …

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Bioanalytical Methods For Studies Of Homocysteine And Novel Cardiovascular Disease Indicators, Arther T. Gates Jan 2008

Bioanalytical Methods For Studies Of Homocysteine And Novel Cardiovascular Disease Indicators, Arther T. Gates

LSU Doctoral Dissertations

This dissertation explores the development of analytical methods for studies of CVD biomarkers and related biomolecular indicators. Initially, spectroscopic studies were conducted to investigate the chemical reactivity of homocysteine (Hcy), an independent CVD risk factor and serological biomarker. Consequently, we proposed an alternate theory for in vivo Hcy clearance based on spontaneous pyridoxal tetrahydrothiazine (PT) formation from Hcy and pyridoxal. The validity of PT-assisted Hcy clearance was further evaluated by use of capillary electrophoretic methods, which allowed rapid monitoring of protein oligomerization in PT-protein reaction mixtures. The results of these studies suggest that PT formation is a plausible mechanism for …

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Retro Models Of The Cisplatin-Dna Cross-Link With Carrier Ligands Having Sp2 N-Donor Triazine Rings, Vidhi Maheshwari Jan 2008

Retro Models Of The Cisplatin-Dna Cross-Link With Carrier Ligands Having Sp2 N-Donor Triazine Rings, Vidhi Maheshwari

LSU Doctoral Dissertations

Rapid rotation of guanine base derivatives about Pt–N7 bonds results in fluxional behavior of models of the key DNA intrastrand G–G cross-link leading to anticancer activity of Pt(II) drugs (G = deoxyguanosine). This behavior impedes the characterization of LPtG2 models (L = one bidentate or two cis-unidentate carrier ligands; G = guanine derivative). The objective of this study is to understand the types of conformers formed as L is systematically varied. This work, relevant to Pt(II) anticancer drugs, has evolved from published studies with sp3 N-ligands (e.g., 2,2'-bipiperidine), to C2 symmetrical or unsymmetrical sp2 N-ligands having pyridine and/or triazine rings. …

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Native Spiritualities As Resistance: Disrupting Colonialism In The Americas, Kirstin Lea Squint Jan 2008

Native Spiritualities As Resistance: Disrupting Colonialism In The Americas, Kirstin Lea Squint

LSU Doctoral Dissertations

This project analyzes eight novels which represent revolt or resistance by varied Native peoples against the European and Euro-American colonization of the Americas. I take a comparative approach to literatures of the Americas because of the dearth of research examining the literatures of both continents side by side, particularly literatures by and about Indigenous Americans. Chapter One introduces the theoretical bases for the project, including colonial and postcolonial theories, Native American literary theories, and aesthetic concerns specific to American Indian literatures. The second chapter is a comparative analysis of Miguel Angel Asturias’s Men of Maize and Leslie Marmon Silko’s Almanac …

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A Study Of Rheological And Thermodynamic Properties Of Polymer-Clay Gels And Multilayered Films, Eduard Adrian Stefanescu Jan 2008

A Study Of Rheological And Thermodynamic Properties Of Polymer-Clay Gels And Multilayered Films, Eduard Adrian Stefanescu

LSU Doctoral Dissertations

The overall objective of the research presented here is to understand the nanoscopic and microscopic structures that exist in dispersions of laponite and montmorillonite in poly(ethylene oxide), (PEO) and to correlate their shear responses with the final structure and properties of multilayered nanocomposite films prepared from these dispersions. These structures were examined as a function of polymer molecular weight, polymer and clay concentrations, and type of clay used to prepare the nanocomposites. A sequence of shear and elongational rheological measurements is used to provide a more complete physical picture on the structure of polymer-clay hydrogels, while a combination of techniques …

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Disciplinary Differences In Preferred Research Methods: A Comparison Of Groups In The Biglan Classification Scheme, Mark A. Alise Jan 2008

Disciplinary Differences In Preferred Research Methods: A Comparison Of Groups In The Biglan Classification Scheme, Mark A. Alise

LSU Doctoral Dissertations

The Biglan system of classifying disciplines in groups based on similarities and differences in their subject matter has been validated in numerous empirical studies. The present study sought to expand that validation by comparing two Biglan groups that include disciplines representing the social and behavioral sciences. As a unique point of comparison, preferred research methods were contrasted between Psychology and Sociology forming one group of pure disciplines and Education and Nursing forming another group of applied disciplines. A code sheet was developed to categorize the various components of published research, distinguishing at the most basic level quantitative, qualitative, and mixed …

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A Phenomenological Study Of Couples Who Pursue Infertility And The Impact On Their Lives, Mary Catherine Fontenot Jan 2008

A Phenomenological Study Of Couples Who Pursue Infertility And The Impact On Their Lives, Mary Catherine Fontenot

LSU Doctoral Dissertations

The purpose of this qualitative study was to describe the lived experience of couples residing in Southeastern Louisiana who were diagnosed with infertility and underwent infertility treatments. The study was a phenomenological qualitative research design, with researcher-developed guiding questions to help direct interviews. The sample was purposeful and was drawn from the patient base of a local endocrinologist. The couples who participated were greater than 18 years of age and had discontinued treatment one year prior to implementation of the study. Two married couples participated in the study while only the women of the other three couples agreed to be …

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Landscape Analysis Of Vegetation Change In Coastal Louisiana Following Hurricanes Katrina And Rita, Gregory Dean Steyer Jan 2008

Landscape Analysis Of Vegetation Change In Coastal Louisiana Following Hurricanes Katrina And Rita, Gregory Dean Steyer

LSU Doctoral Dissertations

Investigations of hurricane disturbances on coastal vegetated communities are common, but relatively few are comprehensive across broad geographic regions. The 2005 hurricanes, Katrina and Rita, exposed Louisiana coastal landscapes to physical modifications and extensive and prolonged flooding, resulting in measurable physicochemical changes. This research used remote sensing and field investigations to regionally assess (1) porewater salinity and sulfide impacts to and recovery of coastal Louisiana vegetation communities, and (2) the importance of mineral sediment deposition on accretionary processes. Hurricane effects were most direct and prominent in eastern Louisiana from Katrina and western Louisiana from Rita, compared to central Louisiana exposed …

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Degradation And Water Quality Dynamics Of Sugarcane Residue In South Louisiana, Jose Roberto Deras Jan 2008

Degradation And Water Quality Dynamics Of Sugarcane Residue In South Louisiana, Jose Roberto Deras

LSU Doctoral Dissertations

PURPOSE: This research was conducted to assess methods to manage the residue blanket to avoid open field burning in sugarcane. Experiments were conducted in the state of Louisiana to evaluate methods to asses and potentially reduce water quality issues. METHODS: Concentrations and frequencies of biological compost tea were sprayed on sugarcane combine-harvester residue blanket to increase degradation rate and reduce potential for runoff water to transport nutrients and sediments that may impair water bodies, while sustaining suitable sugarcane yield. Carbon dioxide evolution rate (mg CO2-C) and CO2 fluxes were measured in laboratory and in open field conditions; as an index …

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Impact Damage Between The Collision Of A Vessel And Protective Fender Systems, Paul Joseph Kocke Jan 2008

Impact Damage Between The Collision Of A Vessel And Protective Fender Systems, Paul Joseph Kocke

LSU Master's Theses

Vessel collision with bridge pilings can cause a catastrophic event and are occurring at an alarming rate. Such events can lead to the collapse of a bridge, causing deaths, shutting down a primary route of transportation and costing millions of dollars in repairs. Today, the AASHTO Bridge Code gives designers a methodology toward designing bridge pilings to withstand the impact of an errant vessel. However, bridges designed before this code was written require a protective system that is capable of redirecting a colliding vessel without causing severe damage to the pilings or the vessel. This research will look into three …

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Syntheses And Evaluation Of Phthalocyanine Derivatives For Applications In Photodynamic And Boron Neutron Capture Therapies For Cancer, Hairong Li Jan 2008

Syntheses And Evaluation Of Phthalocyanine Derivatives For Applications In Photodynamic And Boron Neutron Capture Therapies For Cancer, Hairong Li

LSU Doctoral Dissertations

Chapter I introduced the background of phthalocyanines including its physical properties and various synthetic methods of free-base and metallo-phthalocyanines. The background of PDT and BNCT was introduced and the objective of ideal sensitizers was described. Chapter II described the synthesis and characterization of a series of pyridiloxy-substituted zinc phthalocyanines with different length of alkyl groups. Pyridiloxy-substituted silica phthalocyanines bearing different associated axial ligands, were alkylated with methyl or PEG chains. Biological study was performed on these cationic pyridiloxy-substituted zinc phthalocyanines. Chapter III introduced the synthesis and photophysical properties of A3B-type zinc phthalocyanines conjugated with one or two cobalta-carborane cages. They …

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Learning Styles And Student's Perception Of Teachers' Attitudes And Its Relation To Truancy Among African Americans Students In Secondary Education, Kenyetta Quenishia Nelson-Smith Jan 2008

Learning Styles And Student's Perception Of Teachers' Attitudes And Its Relation To Truancy Among African Americans Students In Secondary Education, Kenyetta Quenishia Nelson-Smith

LSU Doctoral Dissertations

Many researchers have examined the effect of truancy and student achievement. However, there has been little or no focus on the effect of truancy and non-attendance among ethnic minorities. The current study examined how African American students’ learning styles and their perceptions of teachers’ attitudes toward them and the learning environment influenced their decision to become high truants. Additionally, the study sought to find if selected demographic factors had any relevance on the truancy rate of African American students. The researcher used several assessment instruments to measure the variables being tested. The Index of Learning Styles Questionnaire (ILS), developed by …

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Off-Line Maldi Mass Spectrometry Of Bioaerosols, Jae-Kuk Kim Jan 2008

Off-Line Maldi Mass Spectrometry Of Bioaerosols, Jae-Kuk Kim

LSU Doctoral Dissertations

Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry was used for off-line analysis of bioaerosols. The overall goal of the work is to develop methods and instrumentation to minimize sample treatment and maximize sensitivity and selectivity for bioaerosol analysis. This work is divided into three parts: sample preparation, test bioaerosol analysis, and instrument development. Untreated silicon wafer substrates were used as an alternate to conventional stainless steel targets and proved to be excellent substrates for large molecule analyses as well as small molecule analyses with excellent spot-to-spot and shot-to-shot reproducibility, which is useful for high-throughput and automated sample analysis. MALDI sample preparation …

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Identification Of Quantitative Trait Loci Influencing Early Height Growth In Longleaf Pine (Pinus Palustris Mill), Lisha Wu Jan 2008

Identification Of Quantitative Trait Loci Influencing Early Height Growth In Longleaf Pine (Pinus Palustris Mill), Lisha Wu

LSU Doctoral Dissertations

The delay in early height growth (EHG) has been a limiting factor for artificial regeneration of longleaf pine (Pinus palustris Mill.). Simple Sequence Repeat (SSR) markers have been used to map the genome and quantitative trait loci controlling the EHG in a backcross family (longleaf pine x slash pine) x longleaf pine. A total of 228 locus specific SSR markers were screened against 6 longleaf pine recurrent parents and a sample of 7 longlef x slash pine hybrid parents. In total, 135 polymorphic markers were identified. Based on the genetic variance in EHG, available sample size, and the number of …

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Novel Devices And Protocols Enabling Isolation And Enumeration Of Low Abundant Biological Cells From Complex Matrices, Andre Antonio Adams Jan 2008

Novel Devices And Protocols Enabling Isolation And Enumeration Of Low Abundant Biological Cells From Complex Matrices, Andre Antonio Adams

LSU Doctoral Dissertations

The dimensions of microfluidic devices closely parallel those of biological cells; thusly, they are excellent platforms for the speciation, transport, manipulation, and analysis of cells. Electrokinetic transport of Escherichia coli and Saccharomyces cerevisiae was evaluated in microfluidic devices fabricated in pristine and UV-modified poly(methylmethacrylate) and polycarbonate. The magnitude and direction of transport of the cells was dictated by the buffer composition, conduit surface chemistry, and intrinsic cellular electrical properties. Baker’s yeast in all devices migrated toward the cathode, because of their smaller electrophoretic mobility compared to the electroosmotic flow of the polymer. E. coli cells suspended in 20 mM PBS …

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Spatial And Temporal Dynamics Of Stream Water Chemistry In A Headwater Catchment Of Central Louisiana, April Bryantmason Jan 2008

Spatial And Temporal Dynamics Of Stream Water Chemistry In A Headwater Catchment Of Central Louisiana, April Bryantmason

LSU Master's Theses

One of the dominant themes of stream water quality research has been the effect of nutrients and organic materials on eutrophication of coastal waters. Despite this prevalence in water quality research, few studies have been conducted on water quality changes in low-gradient watersheds under a humid, warm subtropical climate, such as those in the coastal plains of the Northern Gulf of Mexico. This study addresses: (1) the nutrient conditions in headwater streams of a low-gradient, subtropical watershed, especially as it relates to the suggested criteria by the Environtmental Protection Agency (EPA), (2) organic and inorganic carbon dynamics in the headwaters …

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Distributions And Associations Of Single Nucleotide Polymorphisms In The Leptin Gene Of Bos Taurus And Bos Indicus Cattle, Douglas Henry Fischer, Jr Jan 2008

Distributions And Associations Of Single Nucleotide Polymorphisms In The Leptin Gene Of Bos Taurus And Bos Indicus Cattle, Douglas Henry Fischer, Jr

LSU Master's Theses

In recent years, the use of genetic markers has become more and more prevalent in beef breeding programs. This research focused on four previously identified single nucleotide polymorphisms in a leptin gene on chromosome 4 of beef cows. The SNP were E2FB, T945M, UA1, and UA2. Beef cows used in this research were maintained at the Louisiana State University AgCenter Central Research Station. Cows consisted of purebred Bos tauras and Bos indicus cattle as well as crossbreds. The objectives were to estimate genotypic and allelic frequencies for each SNP and to determine the influence of cow breed type, cow age, …

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Species Boundaries, Biogeography, And Intra-Archipelago Genetic Variation Within The Emoia Samoensis Species Group In The Vanuatu Archipelago And Oceania, Alison Madeline Hamilton Jan 2008

Species Boundaries, Biogeography, And Intra-Archipelago Genetic Variation Within The Emoia Samoensis Species Group In The Vanuatu Archipelago And Oceania, Alison Madeline Hamilton

LSU Doctoral Dissertations

Speciation, geographic variation, and genetic differentiation are fundamental processes that generate diversity, and understanding these processes are major goals of evolutionary biology. Evolutionary phenomena may be more observable on islands as compared to continental landmasses as a result of small population sizes, unoccupied niches, and the relative simplicity of island systems and their populations: physical isolation, shorter (and often well documented) geologic time scale, reduced faunal diversity, and lack of outside faunal influence. Yet, despite their incredible diversity, Pacific island faunas have received little research attention relative to other tropical regions. Using molecular data from several species of scincid lizards …

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Neonatal Respiratory Virus Infection Shapes Pulmonary Function In Adult Mice, Dahui You Jan 2008

Neonatal Respiratory Virus Infection Shapes Pulmonary Function In Adult Mice, Dahui You

LSU Doctoral Dissertations

Respiratory syncytial virus (RSV) and influenza are the two most common causes of acute lower respiratory tract infections in infants. Epidemiological data suggest that both severe RSV and influenza infections during infancy are associated with long-term pulmonary function abnormalities. Despite of the severe burdens of RSV and influenza infections in infants, no efficacious vaccines are available for RSV and the current vaccine strategy for influenza is inconvenient due to the fact that vaccines are made annually based on the prediction of circulating strains in the next season. New strategies in vaccine development have been slow to arrive partly due to …

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Development Of New Stimuli-Responsive Vesicles Using A Novel Surfactant, Yuming Yang Jan 2008

Development Of New Stimuli-Responsive Vesicles Using A Novel Surfactant, Yuming Yang

LSU Doctoral Dissertations

Many amphiphilic molecules (surfactants) possess the ability to aggregate in aqueous solution to form thermodynamically stable aggregates that have potential for use as molecule containers and delivery systems in analytical or pharmaceutical applications. However, it is difficult to release the encapsulated molecules from these aggregates under a controllable manner, and this problem has dramatically limited the application of these aggregated systems. This study addresses this problem through fundamental structure modification by development of a novel redox stimuli-responsive amphiphile capable of forming vesicle aggregates. Aggregate structure can be adjusted through redox stimulation. The release of agents from the core of the …

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Pilot-Scale Study On Anaerobic Digestion Applied To A Saline Industrial Waste Activated Sludge, Changjiang Shen Jan 2008

Pilot-Scale Study On Anaerobic Digestion Applied To A Saline Industrial Waste Activated Sludge, Changjiang Shen

LSU Master's Theses

In the field of municipal wastewater treatment, anaerobic digestion is a well-established, effective process for stabilization of organic sludge with the attractive features of low operating costs and production of methane as a useful by-product. Application of anaerobic digestion for the treatment of saline industrial wastewater sludge, however, has not been well established. The studies described in this thesis were conducted with the overall goal of assessing the feasibility of mesophilic anaerobic digestion processes for treatment of waste activated sludge (WAS) containing moderate salinity (approximately 3% m/v). Experiments employed two 30-gallon conical-bottom HDPE reactors. In the first phase of testing, …

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A 5000-Year History Of Caribbean Environmental Change And Hurricane Activity Reconstructed From Coastal Lake Sediments Of The West Indies, Jason Thomas Knowles Jan 2008

A 5000-Year History Of Caribbean Environmental Change And Hurricane Activity Reconstructed From Coastal Lake Sediments Of The West Indies, Jason Thomas Knowles

LSU Doctoral Dissertations

A ~5000 yr history of modern and prehistoric hurricane landfall and environmental change has been reconstructed from coastal lake sediments of the northern West Indies. Hurricane overwash layers and environmental shifts were identified by changes in biological and sedimentary stratigraphies, core lithology, and loss-on-ignition techniques. 14C and 137Cs were used to establish a chronology of events. Many hurricane-induced overwash layers were identified within the lake sediments. Evidence indicates distinct periods of temporal shifts in hurricane activity for the Northern Caribbean islands of Anguilla, Barbuda, and Acklins Island, Bahamas, providing the first paleotempestological records for the region. The northern Caribbean record …

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Factors Potentially Influencing The Abundance Of Mosquitoes In Louisiana Rice Fields, Ana Maria Sanchez De Cuadra Jan 2008

Factors Potentially Influencing The Abundance Of Mosquitoes In Louisiana Rice Fields, Ana Maria Sanchez De Cuadra

LSU Master's Theses

The rice stink bug (Oebalus pugnax) is the major pest of late-season rice in Louisiana. Prior studies indicate that large populations of mosquitoes are often present in rice fields during the time that rice fields are infested with rice stink bugs. Lambda-cyhalothrin (Karate®) is widely used to control rice stink bugs. The purpose of this study was to determine if application of the insecticide Karate® at a rate of 0.033 kg/ha, for rice stink bug control had an effect on the population of mosquitoes in rice fields. This effect was assessed by monitoring natural populations of mosquitoes before and after …

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Influences Of Maternal Corticosterone On Incubation Length And Hatchability Of Eggs Laid By Quail Hens Selected For Divergent Adrenocortical Stress Responsiveness, Jason Berante' Schmidt Jan 2008

Influences Of Maternal Corticosterone On Incubation Length And Hatchability Of Eggs Laid By Quail Hens Selected For Divergent Adrenocortical Stress Responsiveness, Jason Berante' Schmidt

LSU Master's Theses

Unstressed and stressed quail hens selected for exaggerated (HS, high stress) rather than reduced (LS, low stress) plasma corticosterone (B) response to brief restraint deposit more B into their eggs than do their LS hen counterparts. HS hens implanted with B also show reduced egg lay when compared to LS- and HS-control and LS-B-implanted hens. Herein, the effects of stress line on length of egg incubation (LEI) and chick body weight at emergence (BWTE) (Exp. 1) and the interactive influences of line with maternal B-treatment (sub-Q control, CON-, or B-implants) on LEI (Exp. 2) and on egg fertility (FERT), total …

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Land Alive!, Or Metamorphosis In The Sportsman's Paradise, Adam Tourek Jan 2008

Land Alive!, Or Metamorphosis In The Sportsman's Paradise, Adam Tourek

LSU Master's Theses

"Land Alive!" is best described a multimedia work. The produce of travels to the area of the Mississippi River delta, along with text-based research, formed the materials from which two evenings of participative performance were crafted. Personal narratives were used alongside evaluations of administrative programs, and the space in the Backyard Gallery was transformed using shovels, buckets, and teamwork. Found chairs, rope, and other objects, through ritualized interaction, became an aesthetic formation; everyone present worked together in the assembly of a boat, which contained the results of these interactions between myself, six volunteers, and an audience turned participants. The evenings …

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Optimization Of Treatment Of Chlorinated Volatile Organic Compound Mixtures In Constructed Wetlands: Vegetation And Substrate Effects, Stephen Emmanuel Mbuligwe Jan 2008

Optimization Of Treatment Of Chlorinated Volatile Organic Compound Mixtures In Constructed Wetlands: Vegetation And Substrate Effects, Stephen Emmanuel Mbuligwe

LSU Doctoral Dissertations

Microcosm and mesocosm scale experiments were carried out to investigate the effects of vegetation and substrates on the performance of engineered wetland systems (EWSs) meant to treat mixtures of volatile organic compounds (cVOCs). The experiments were conducted with a view to optimizing contributions of these wetland components. Phragmites communis and Typha latifolia, the commonest wetland plant species, were compared in mesocosm scale EWSs. Eight common wetland plant species were compared using microcosm experiments based on the potential of their rootmatter to enhance treatment of cVOC mixtures. Twelve common wetland plants were similarly compared but on the basis of their aboveground …

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