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2007

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Articles 6421 - 6450 of 6763

Full-Text Articles in Physical Sciences and Mathematics

Petrographic Signature For The Whidbey Formation, Jonathan Peterson Jan 2007

Petrographic Signature For The Whidbey Formation, Jonathan Peterson

WWU Graduate School Collection

The late Pleistocene Whidbey Formation occupies a region on and around Whidbey Island, Washington, that received both northern-derived glacial sediments and eastern-derived nonglacial sediments. Distinguishing between glacial outwash and nonglacial sediments of the Whidbey Formation and the younger Olympia beds has been problematic where stratigraphic sections are incomplete. For the Whidbey Formation, discontinuous deposits of sand, clay, peat and silt that stem from meandering streams on floodplains have not been fully characterized, petrographically. Recent documentation (Dragovich and others, 2005) of dacitic channel and lahar-runout facies on northern Whidbey Island spurred petrographic analysis of various sands from across the whole region …

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Cybercraft: Protecting Electronic Systems With Lightweight Agents, Daniel R. Karrels, Gilbert L. Peterson Jan 2007

Cybercraft: Protecting Electronic Systems With Lightweight Agents, Daniel R. Karrels, Gilbert L. Peterson

Faculty Publications

The United States military is seeking new and innovative methods for securing and maintaining its computing and network resources locally and world-wide. This document presents a work-in-progress research thrust toward building a system capable of meeting many of the US military’s network security and sustainment requirements. The system is based on a Distributed Multi-Agent System (DMAS), that is secure, small, and scalable to the large networks found in the military. It relies on a staged agent architecture capable of dynamic configuration to support changing mission environments. These agents are combined into Hierarchical Peer-to-Peer (HP2P) networks to provide scalable solutions. They …

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The Flight From Arbitration: An Empirical Study Of Ex Ante Arbitration Clauses In The Contracts Of Publicly Held Companies, Theodore Eisenberg, Geoffrey P. Miller Jan 2007

The Flight From Arbitration: An Empirical Study Of Ex Ante Arbitration Clauses In The Contracts Of Publicly Held Companies, Theodore Eisenberg, Geoffrey P. Miller

Cornell Law Faculty Publications

Informed parties bargaining for their mutual advantage will tend to agree to provisions that maximize the social surplus. Such bargaining includes provisions regarding the resolution of disputes that might arise under the contract. Thus, if a form of alternative dispute resolution, such as binding arbitration, provides greater social benefits than litigation, the dynamics of the process should tend to induce the parties to include a clause submitting future disputes to arbitration. This Article studies the actual contracting practices of large, sophisticated actors with respect to arbitration clauses. We examined over 2800 contracts, filed with the Securities Exchange Commission (SEC) in …

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Geochemistry Of West Siberian Streams And Their Potential Response To Permafrost Degradation, Karen E. Frey, Donald I. Siegel, Laurence C. Smith Jan 2007

Geochemistry Of West Siberian Streams And Their Potential Response To Permafrost Degradation, Karen E. Frey, Donald I. Siegel, Laurence C. Smith

Geography

[1] Measurements of solute concentrations from previously unstudied watersheds throughout west Siberia suggest that warming and permafrost degradation will likely amplify the transport of dissolved solids to the Kara Sea and adjacent Arctic Ocean. We present concentrations of Ca2+, K+, Mg2+, Na+, Si, Cl-, SO 42-, HCO3-, inferred alkalinity, and total inorganic solutes (TIS) from 94 streams and rivers within the Ob'-Irtysh, Nadym, and Pur river drainage basins. The sampled sites span ∼10 6 km2, a large climatic gradient (∼55°-68°N), and 39 permafrost-influenced and 55 permafrost-free watersheds. The solute composition of our samples is strongly influenced by carbonate mineral dissolution. …

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Playing Games To Build Understanding, Michele Carnahan, Bridgette Stevens Jan 2007

Playing Games To Build Understanding, Michele Carnahan, Bridgette Stevens

Faculty Publications

I am fortunate. I teach from Investigations in Number, Data, and Space [TERC] (1996), a standards-based elementary mathematics curriculum. My evolution from teaching in a traditional teacher-centered approach to one that supports a student-centered community of learners has been a slow and gradual process during the past six years of teaching. Fortunately, through experience, professional development, and graduate level courses, I have come to appreciate the conceptual understanding students acquire from learning mathematics via a student-centered approach and how playing games is an effective instructional strategy for learning mathematics. As intended by the authors of Investigations and envisioned by the …

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Sensor Network Coverage And Data Aggregation Problem: Solutions Toward The Maximum Lifetime, Li Yin Jan 2007

Sensor Network Coverage And Data Aggregation Problem: Solutions Toward The Maximum Lifetime, Li Yin

Masters Theses

"In the coverage problem, an optimal solution is proposed for the maximum lifetime sensor scheduling problem, which could find the upper bound of a sensor network's lifetime. This research reveals the relationship between the degree of redundancy in sensor deployment and achievable extension on network lifetime, which can be a useful guide for practical sensor network design"--Introduction, page 4.

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Denitrification Capacity And Denitrifying Bacteria In A Restored Bottomland Hardwood Forest, Mississippi River Alluvial Valley: Hydrological Impacts, Yan Li Jan 2007

Denitrification Capacity And Denitrifying Bacteria In A Restored Bottomland Hardwood Forest, Mississippi River Alluvial Valley: Hydrological Impacts, Yan Li

LSU Master's Theses

Mississippi River Alluvial Valley (MAV) is one of the most important ecosystems in the United States, and bottomland hardwood forests (BLHs) are a major components of this ecosystem. The ecological and hydrological functions of BLHs can help maintain the diversity of species, groundwater balance, and nutrient removal etc. However, due to the increased human activities in the area, most of the BLHs were converted to agricultural land. Realizing the seriousness of the situation of the ecosystem, a series of programs have been carried out by the U.S. Fish and Wildlife Service (USFWS) and the U.S. Department of Agriculture (USDA) to …

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Development Of Fluorescent Chemosensors Based On Energy Transfer In End-Capped Pi-Conjugated Systems, Huating Zhang Jan 2007

Development Of Fluorescent Chemosensors Based On Energy Transfer In End-Capped Pi-Conjugated Systems, Huating Zhang

LSU Master's Theses

A novel sensory platform based on conjugated polymer was developed, that consists of a monodispersed oligo(phenylene ethynylene) backbone, end-capped with a terminal alkene for further attachment to a solid surface at one terminus, and an anthracene based receptor group at the other terminus. Energy transfer from backbone to end-cap was observed by absorption spectroscopy and fluorescence spectroscopy. Other ongoing projects described herein include the synthesis of longer-chain analogues of the above platform, the synthesis of silica microspheres based conjugated polymer sensory platform and the synthesis of long wavelength (NIR) dye for in vivo amyloid screening studies.

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A Directional Algorithm For An Electronically-Collimated Radiation Detector (Ecrd), Adam Lackie Jan 2007

A Directional Algorithm For An Electronically-Collimated Radiation Detector (Ecrd), Adam Lackie

LSU Master's Theses

An electronically-collimated radiation detector (ECRD) is being developed to be used for locating radiation sources, e.g. for intraoperative localization of sentinel lymph nodes, or for public safety applications. The design emphasizes a compact, portable detector with a wide field of view. Typical probes provide either high sensitivity but no directional information when uncollimated, or directional information but poor detection efficiency when collimated. The ECRD design provides high sensitivity to the presence of radiation because it lacks physical collimation, and simultaneously provides directional information using electronic collimation. Intended to be a hand-held device, the ECRD front end comprises an array of …

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Investigation Of Superficial Dose From A Static Tomotherapy Beam, Koren Suzette Smith Jan 2007

Investigation Of Superficial Dose From A Static Tomotherapy Beam, Koren Suzette Smith

LSU Master's Theses

Abstract Purpose: The TomoTherapy planning system is capable of creating treatment plans that deliver a homogeneous dose to superficial targets. It is essential that the planning system accurately predicts dose to the surface and superficial depths from beams directed at every angle in the axial plane. This work concentrates on measuring and modeling the dose from a static TomoTherapy beam at normal and oblique incidence. It was hypothesized that superficial doses measured from a static TomoTherapy beam agree with doses calculated by the TomoTherapy planning system to within 5% of the maximum dose for angles of incidence from 0¢ª-83¢ª. Methods: …

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Chemical Analysis Of Extracts From Port-Orford Cedar Wood And Bark, Heng Gao Jan 2007

Chemical Analysis Of Extracts From Port-Orford Cedar Wood And Bark, Heng Gao

LSU Master's Theses

This study investigated a Soxhlet extract procedure to separate chemical components in the wood and bark of Port-Orford cedar (POC) (Chamaecyparis lawsoniana). The bio-activities, antioxidant properties, and decay resistance were evaluated. The heartwood extracts were analyzed by gas chromatography-mass spectrometry (GC-MS). Three vitro assays including (1) 1, 1-diphenyl-2-picrylhydrazyl hydrate (DPPH• ) radical scavenging assay, (2) 2,2-azinobis ( 3-ethylbenzothiszoline-6-sulfonic acid) diammonium salt (ABTS) radical cation scavenging ability assay, and (3) metal chelating activity assay were carried out to evaluate the antioxidant activity. The total phenol content of the extracts was determined by the Folin-Ciocalteu method and expressed as Gallic Acid Equivalent …

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Effects Of Aversive Conditioning On Behavior Of Nuisance Louisiana Black Bears, Jennifer Leigh Jan 2007

Effects Of Aversive Conditioning On Behavior Of Nuisance Louisiana Black Bears, Jennifer Leigh

LSU Master's Theses

Consistent habitat loss and fragmentation are contributing factors to the rise of human-bear conflicts in south Louisiana. Complaints associated with nuisance activities of Louisiana black bears (Ursus americanus luteolus) experienced in this region have steadily increased since 2000, requiring intervention by state and federal agencies. As a threatened species, Louisiana black bears require non-lethal management referred to as aversive conditioning. We used rubber buckshot and dogs to test the effectiveness of management techniques used by the state to deter nuisance activity by black bears. Eleven bears, representing approximately 15% of the estimated population in this region, were captured in residential …

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Use Of An Agricultural Non-Point Source Pollution Model To Assess Impacts Of Development And Management Practicies [Sic] In An Urban Watershed, John Admiral Cross Jan 2007

Use Of An Agricultural Non-Point Source Pollution Model To Assess Impacts Of Development And Management Practicies [Sic] In An Urban Watershed, John Admiral Cross

LSU Master's Theses

A Geographical Information System (GIS) linked to a Non-Point Source (NPS) model are being used to predict the effectiveness of storm water management strategies and examine the impact of proposed land use changes on Total Maximum Daily Load (TMDL) attainment. This study tests a methodology for analyzing land use changes and management using GIS analyses of impervious surfaces and AGricultural Non-Point Source (AGNPS) pollution modeling in an approximate 1100 acre urban watershed located in East Baton Rouge Parish (EBRP), Louisiana. The GIS analyses of Total Impervious Area (TIA) quantified increases in urbanization and provided land use data utilized in AGNPS …

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Accuracy Of Cranial Coplanar Beam Therapy With Brainlab Exactrac Image Guidance, Justin Vinci Jan 2007

Accuracy Of Cranial Coplanar Beam Therapy With Brainlab Exactrac Image Guidance, Justin Vinci

LSU Master's Theses

Purpose: To develop a system for measuring 2D dose distributions in the cranium and to use this system to evaluate the accuracy of coplanar conformal therapy using ExacTrac image guidance. Methods: Techniques were developed to measure dose distributions in each principal plane using a CIRS anthropomorphic head phantom with a custom internal film cassette. Sections of EDR2 film were cut, processed, and digitized using custom templates. Spatial and dosimetric accuracy and precision of the film system was assessed. BrainScan was used to plan a coplanar-beam treatment conforming to irradiate a 2-cm diameter x 2-cm cylindrical target. Prior to delivery phantom …

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Relationships Between Macroinvertebrate Communities And Environmental Characteristics Of Headwater Streams In Central Louisiana, Adrienne Viosca Jan 2007

Relationships Between Macroinvertebrate Communities And Environmental Characteristics Of Headwater Streams In Central Louisiana, Adrienne Viosca

LSU Master's Theses

Headwater streams are an integral part of any watershed system because they strongly influence the physical, chemical, and biological components of downstream reaches. Little information exists about macroinvertebrate community structure, spatiotemporal variation, or their relationships with environmental factors in low-gradient headwater streams of the subtropical coastal plain region in the Southern US. These headwater streams are typically slow moving, capable of accumulating large amounts of organic material, and often become intermittent during the dry season. Research is needed to understand the effects of these unique characteristics on stream health and ecology. This study aimed to determine aquatic macroinvertebrate community structure, …

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Quantifying The Edge Effects Associated With Predator Removal Blocks On The Nesting Success Of Upland Ducks In North Dakota, Margaret Jean Kuhn Jan 2007

Quantifying The Edge Effects Associated With Predator Removal Blocks On The Nesting Success Of Upland Ducks In North Dakota, Margaret Jean Kuhn

LSU Master's Theses

Much evidence suggests that nest success is one of the key drivers of duck production. Accordingly, for the past thirty years, waterfowl managers have focused their efforts on increasing nest success. One way to increase nest success is through predator trapping. Previous studies have shown that predator trapping increases nest success on different sized trapped blocks. This study attempted to answer the question: does trapping affect nest success on areas directly adjacent to trapped block boundaries? I hypothesized that predator abundance outside trapped blocks would be reduced. I predicted that nest success would decline with distance from the boundary while …

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Spatial Ecology, Habitat Selection, And Survival Of Wild Turkey Gobblers In A Managed Bottomland Hardwood Forest, Blake Anthony Grisham Jan 2007

Spatial Ecology, Habitat Selection, And Survival Of Wild Turkey Gobblers In A Managed Bottomland Hardwood Forest, Blake Anthony Grisham

LSU Master's Theses

Wild turkey (Meleagris gallopavo) males were captured and radio-tagged in a bottomland hardwood forest of south-central Louisiana. Turkeys were monitored year round from fixed telemetry stations on Sherburne Wildlife Management Area, Atchafalaya National Wildlife Refuge, and Bayou des Ourses to observe seasonal patterns of space use, habitat selection and survival from 2005-07. The largest seasonal home range was in fall/winter (966.41 ha; Oct 1-Feb 28). Spring home range (767.77 ha; Mar 1- May 31) size was lower than reported in previous studies and was a function of female availability. Season and age interacted to influence core area size (F5/63 …

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The Hydrology And Sediment Transport Of Low-Gradient, Forested Headwater Streams, Philip Saksa Jan 2007

The Hydrology And Sediment Transport Of Low-Gradient, Forested Headwater Streams, Philip Saksa

LSU Master's Theses

Understanding stream hydrology of headwater regions is critical in effective land management for downstream water quantity and quality. Although extensive research has been performed on headwater streams in topographically variable areas, fewer studies examine low-gradient headwater stream systems, such as those existing on much of the southeastern coastal plain. This study aims to investigate spatial and temporal variation of headwater stream hydrology in a low-gradient forested watershed, quantify mass loading of suspended and dissolved solids in the watershed, and assess the applicability of a spatially distributed model in predicting hydrologic responses of a flat terrain landscape. Stream discharge and sediments …

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Evaluation Of Allochthonous And Autochthonous Microbial Populations In The In-Situ Remediation Of Weathered Oil In A Coastal Freshwater Habitat, Kyle Alan Schmidt Jan 2007

Evaluation Of Allochthonous And Autochthonous Microbial Populations In The In-Situ Remediation Of Weathered Oil In A Coastal Freshwater Habitat, Kyle Alan Schmidt

LSU Master's Theses

Use of bioremedial technologies has gained popularity in recent decades for application at oil spill sites. While much research has been done on specific case studies along marine shores, such as with the spill of the Exxon Valdez, there still remain questions as to the advantage of active biological treatment vs. natural attenuation in freshwater environments. To examine this question, a comparative study of allochthonous and autochthonous microbial communities ability to degrade weathered oil residuals was implemented at the CITGO Petroleum Refinery in Lake Charles, Louisiana following a spill of approximately 40,000 barrels of slop oil on June 19th, 2006 …

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Habitat Use, Movements, And Survival Of Radio-Marked Female Mallards In The Lower Mississippi Alluvial Valley, Bruce Edward Davis Jan 2007

Habitat Use, Movements, And Survival Of Radio-Marked Female Mallards In The Lower Mississippi Alluvial Valley, Bruce Edward Davis

LSU Master's Theses

Mallard (Anas platyrhynhcos) populations in the Lower Mississippi Alluvial Valley (LMAV) historically averaged 1.6 million and represented the largest concentrations of wintering mallards in North America. Effective management of this wintering population requires current information on use of habitats, movements, and survival of female mallards. I used radio-telemetry techniques to assess these parameters during winters 2004-2005 and 2005-2006. Radio-marked female mallards used forested wetland habitats extensively during diurnal and nocturnal sampling periods. Proportional use of habitats varied inconsistently among time periods defined by hunting seasons and winters. Proportional use of forested wetlands ranged from 0.464 to 0.816 and from 0.280 …

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Reducing False Alarms In Searches For Gravitational Waves From Coalescing Binary Systems, Andres Rodri­Guez Jan 2007

Reducing False Alarms In Searches For Gravitational Waves From Coalescing Binary Systems, Andres Rodri­Guez

LSU Master's Theses

LIGO observatories in Livingston, LA and Hanford, WA may detect gravitational waves emitted from coalescing binary systems composed of two compact objects. In order to detect compact binary coalescence (CBC) events, LIGO searches utilize matched filtering techniques. Matched filtering is the optimal detection strategy for stationary, Gaussian noise, however, LIGO noise is often non-stationary, non-Gaussian. Non-stationary noise result in an excess of false candidate events, commonly known as false alarms. This thesis develops the r2 test to reduce the false alarm rate for LIGO CBC searches. Results of the search for primordial black hole binary systems (where each object …

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An Architecture For Embedded System Communication, Chakradhar Medavarapu Jan 2007

An Architecture For Embedded System Communication, Chakradhar Medavarapu

LSU Master's Theses

Time is a major constraint in the development of most embedded systems. In many cases, the development of embedded software is directly dependent on the development of the embedded systems. This calls for a development framework that enables embedded software and hardware to be developed in parallel. In an attempt to solve the problem, a concept prototype hardware-in-the-loop (HIL) simulation methodology has been proposed and implemented at the Ohio State University for the TMS320LF2407A DSP board. We build on top of that HIL system by rewriting the low level device drivers that allow data and control information to be set …

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Evaluation Of Compliance With The Long Term 1 Enhanced Surface Water Treatment Rule, Racquel Rena Douglas Jan 2007

Evaluation Of Compliance With The Long Term 1 Enhanced Surface Water Treatment Rule, Racquel Rena Douglas

LSU Master's Theses

Cryptosporidium is a common protozoan parasite that causes cryptosporidiosis, a severe gastrointestinal disease. Currently, there is no antibiotic available to treat the disease. Cryptosporidium has been responsible for several waterborne disease outbreaks in the United States. The largest cryptosporidiosis outbreak in United States history occurred in Milwaukee, Wisconsin in spring 1993. The vulnerability of the United State drinking water supply to waterborne disease outbreak is still prevalent nearly 15 years after the Milwaukee outbreak. In order to effectively control Cryptosporidium, the EPA has strengthened the regulations on turbidity control for filtration performance by implementing the Long Term 1 Enhanced Surface …

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The Use Of Stable Isotopes To Determine The Ratio Of Resident To Migrant King Rails In Southern Louisiana And Texas, Marie Perkins Jan 2007

The Use Of Stable Isotopes To Determine The Ratio Of Resident To Migrant King Rails In Southern Louisiana And Texas, Marie Perkins

LSU Master's Theses

Over the past 30 years, the king rail (Rallus elegans) has purportedly declined precipitously throughout its range, with the most severe declines seen in the migratory populations. King rails, however, are considered a game species in Louisiana and Texas, thus, it is important to determine what proportion of king rails wintering there are migratory. This is complicated because there is no reliable method to distinguish between king and clapper rails and few studies have attempted to capture wintering rails. The objectives of this study were to: 1) Determine the best method for capturing wintering rails; 2) Determine if morphometric measurements …

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Survival, Habitat Use, And Movements Of Female Mallards Wintering In Southwestern Louisiana, Paul Thomas Link Jan 2007

Survival, Habitat Use, And Movements Of Female Mallards Wintering In Southwestern Louisiana, Paul Thomas Link

LSU Master's Theses

Little information is available concerning survival, habitat use, and movements of mallards (Anas platyrhychos) wintering on the Gulf Coast Chenier Plain (GCCP). Quantitative data on these parameters would be useful in making effective management decisions by GCCP waterfowl managers. Accordingly, I radio-marked 135 female mallards during winters 2004-2005 and 2005-2006 in southwestern Louisiana. My estimated survival rate for both winters combined was 0.68 ± 0.06 and did not differ by female age. Hazard ratios indicated that radio-marked females were 21-24 times more likely to die during hunted time periods than during non-hunted time periods. Estimated hunting and non-hunting mortality rates …

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Environmental Factors Affecting The Distribution Of Native And Invasive Aquatic Plants In The Atchafalaya River Basin, Louisiana, U.S.A., Rachel Cathleen Walley Jan 2007

Environmental Factors Affecting The Distribution Of Native And Invasive Aquatic Plants In The Atchafalaya River Basin, Louisiana, U.S.A., Rachel Cathleen Walley

LSU Master's Theses

Over the last century, the aquatic macrophyte community of the Atchafalaya River Basin (ARB) has become increasingly dominated by invasive species. I used digital photography and GIS software to determine ARB macrophyte community composition by measuring percent cover of each plant species within five 0.25-m2 quadrats sampled from 108 sites in 2005 and 103 sites in 2006. Macrophyte community data and measurements of soil and water physicochemistry at each site were used to investigate environmental associations of the macrophytes inhabiting bayou, lake, excavated canal, and swamp habitats. Analyses indicated substantial differences in physicochemical conditions among habitats, but none of the …

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Shelf-Margin Delta Morphology As A Paleo Sea Level Indicator: Implications On Late Quaternary Relative Sea-Level Changes In The Northeast Gulf Of Mexico, Swati Ghoshal Jan 2007

Shelf-Margin Delta Morphology As A Paleo Sea Level Indicator: Implications On Late Quaternary Relative Sea-Level Changes In The Northeast Gulf Of Mexico, Swati Ghoshal

LSU Doctoral Dissertations

A new technique to determine relative sea level history at siliciclastic settings is proposed in this dissertation. The clinoform break (defined as the topset-foreset transition point) of the modern Mississippi River Delta shows a direct relationship with sea level elevation. The analysis of Holocene lobes 8 and 9 belonging to the St. Bernard delta complex of the Mississippi Delta suggests that delta clinoforms can be significantly modified by post-abandonment processes, and hence a detailed stratigraphic evaluation is necessary to determine whether the clinoform geometry is a result of wave erosion or any other post-abandonment processes. The strategy was tested on …

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Sediment Transport On A River-Dominated Shallow Water Shelf: Atchafalaya Bay Region, Louisiana, Renee T. Bellotte Jan 2007

Sediment Transport On A River-Dominated Shallow Water Shelf: Atchafalaya Bay Region, Louisiana, Renee T. Bellotte

LSU Master's Theses

Cold front passage impacts on sediment transport on the inner continental shelf near Atchafalaya Bay were studied, combining satellite imagery and in-situ meteorological and oceanographic measurements. An empirical model relating atmospherically corrected MODIS imagery reflectance to surface measurements of suspended sediment concentration was developed and successfully applied to the coastal waters. An equation for predicting total suspended sediment from Nephelometric Turbidity Units was also applied to the water column at 1, 2, and 3 meters from the seabed. Five case study weeks were selected to examine the dynamics of pre-frontal and post-front forcing mechanisms on sediment transport in a fine-grained …

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Effects Of Predator Activity On The Nesting Of American Black Ducks And Other Birds On Barrier Islands In The Mid-Atlantic Coast, Brian Joseph Arquilla Jan 2007

Effects Of Predator Activity On The Nesting Of American Black Ducks And Other Birds On Barrier Islands In The Mid-Atlantic Coast, Brian Joseph Arquilla

LSU Master's Theses

Landscape change throughout North America has resulted in heightened nest predator population and declining avian productivity. Essential to establishing effective management design is an understanding of differential predation pressure among avian groups as group specific responses to predation impact may exist. The objective of this study was to examine the efficacy of predator trapping on the nest success and density of ground nesting avifauna in 2004-2005 in the Virginia Coast Reserve, specifically dabbling ducks, Canada Goose and Willet. Second, we determine the impact of predation on ground nesting birds by relating indices of predator abundance to nest density and nest …

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A Study Of Subsurface Vapor Intrusion From Exploration & Production Waste, Daniel Dawson Wascom Jan 2007

A Study Of Subsurface Vapor Intrusion From Exploration & Production Waste, Daniel Dawson Wascom

LSU Master's Theses

Expanding city growth is causing the inhabitants of Louisiana to move further into rural areas. Abandoned oil and gas production sites are being used for residential and light commercial purposes. This thesis will attempt to determine if known benzene levels in Exploration and Production (E&P) waste will be harmful to human health via subsurface vapor intrusion into the newly developed residential and light commercial structures. Louisiana does not currently regulate benzene during the closure of pits that contained E&P waste. Current pit closure techniques warrant testing for benzene Based on current Louisiana legislation, benzene contamination of groundwater is currently the …

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