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Evaluating Quaternary Glacial Till Sheet Volume And Duration Of Grounding Events Using Sediment Flux Calculations In The Eastern Basin Paleotroughs, Ross Sea, Anarctica, Logan Gregory Kirst
Evaluating Quaternary Glacial Till Sheet Volume And Duration Of Grounding Events Using Sediment Flux Calculations In The Eastern Basin Paleotroughs, Ross Sea, Anarctica, Logan Gregory Kirst
LSU Master's Theses
A sequence of three seismically-resolvable, back-stepping grounding zone wedges (GZWs) within the Glomar-Challenger Basin paleo-ice-stream trough is conventionally interpreted to have been deposited by the West Antarctic Ice Sheet (WAIS) since the end of the Last Glacial Maximum (LGM). For this to be true, there would have to have been voluminous GZW deposition via fast moving ice streams with high sediment flux during the short timeframe since the WAIS retreat began at 11 Ka 14C BP and when the WAIS moved south of Roosevelt Island at 3.2 Ka BP. In contrast to this interpretation of how the near-surface stratigraphy relates …
A Clay Mineral Provenance Study Of The Northern Pandora Trough Continental Margin, Gulf Of Papua, Ashley Len Howell
A Clay Mineral Provenance Study Of The Northern Pandora Trough Continental Margin, Gulf Of Papua, Ashley Len Howell
LSU Master's Theses
X-ray diffraction mineralogy of western-, central-, and eastern-derived fluvial sediments within the Gulf of Papua exhibits distinct and mixed clay mineral assemblages. These mineral assemblages allow for a better understanding of how a thick muddy continental margin shelf-edge depocenter in the eastern Gulf of Papua of latest Pleistocene/early Holocene age formed, as well as connections between terrestrial sediment delivery and evolution of deep-sea deposits in this region. Modern clay mineralogy reveals a high to low gradation of illite/smectite values from the western to eastern Gulf of Papua (Slingerland et al., 2008a), which is applied to the recent past for provenance …
High Resolution Tephra And U/Pb Chronology Of The 3.33 – 3.26 Ga Mendon Formation, Barberton, Greenstone Belt, South Africa, Nicholas Burns Decker
High Resolution Tephra And U/Pb Chronology Of The 3.33 – 3.26 Ga Mendon Formation, Barberton, Greenstone Belt, South Africa, Nicholas Burns Decker
LSU Master's Theses
The Mendon Formation in the Barberton Greenstone Belt of South Africa marks the boundary between the Onverwacht and Fig Tree Groups. These groups are characterized by mafic to ultramafic volcanism and felsic volcanism with related epiclastic sedimentation, respectively. This transition marks the end of komatiitic volcanism in the Barberton Greenstone Belt and is accompanied by numerous impact-related spherule layers. This study characterizes the upper Mendon Formation texturally and geochemically over a wide areal extent and across structure and facies change in an attempt to better understand the evolution of tectonic processes at this boundary. A suite of whole rock and …
The Effects Of Implementing The Cooperative Learning Structure, Numbered Heads Together, In Chemistry Classes At A Rural, Low Performing High School, Daniel Paul Baker
The Effects Of Implementing The Cooperative Learning Structure, Numbered Heads Together, In Chemistry Classes At A Rural, Low Performing High School, Daniel Paul Baker
LSU Master's Theses
Due to the positive academic results in numerous studies on cooperative learning and the need and desire to improve academic results in East Feliciana High School Chemistry classes, the implementation of a cooperative learning structure called “numbered heads together” was studied during the spring 2013 semester at this rural, low performing high school. Numbered heads together was utilized during three units of a Chemistry class with 24 students and three units of an AP Chemistry with 11 students after completion of two units taught without the use of any type of cooperative learning structure. Using pre- and post-tests, learning gain …
Predicting Potential Unconventional Production In The Tuscaloosa Marine Shale Play Using Thermal Modeling And Log Overlay Analysis, Hunter Berch
LSU Master's Theses
The Tuscaloosa Marine Shale formation (TMS) of Central Louisiana and South Mississippi was suggested as a potential hydrocarbon play with up to seven billion barrels of reserves in a 1997 study by Louisiana State University’s Basin Research Institute. The TMS is considered an unconventional resource because it is a source, reservoir, and seal. Since 1997, horizontal drilling and hydraulic fracturing have enabled exploration and documentation of oil reserves in this play. Prior to this study, high resistivity log curves were used to predict areas of economic interest. While areas of high resistivity within the TMS are often indicative of high …
Matrix-Assisted Laser Desorption Ionization Mass Spectrometry For Identificaiton Of Shrimp, Venkatesulu Salla
Matrix-Assisted Laser Desorption Ionization Mass Spectrometry For Identificaiton Of Shrimp, Venkatesulu Salla
LSU Master's Theses
Matrix-assisted laser desorption ionization (MALDI) time of flight mass spectrometry was used to identify shrimp at the species level using commercial mass spectral fingerprint matching software (Bruker Biotyper). In the first step, a mass spectrum reference database was constructed from the analysis of six shrimp species that are commercially important in the United States: L. setiferus, F. azticus, S. brevirostris, P. robustus, P. dispar and P. platyceros. In the second step, the reference database was tested using 74 unknown shrimp samples from these six species. Correct identification was achieved for 72 of the 74 samples (97 percent): 72 samples were …
An Analysis Of The Influences On Household-Level Adaptations To Environmental Hazards, Tiia Maria Carraway
An Analysis Of The Influences On Household-Level Adaptations To Environmental Hazards, Tiia Maria Carraway
LSU Master's Theses
Utilizing a randomized phone survey of coastal Louisiana residents, this study will focus on identifying which influences from a resident’s exposure, socio-economic vulnerability and adaptive capacity are the best indicators of an individual’s resilience. Two binary logistic regression models were developed to test the associations of resident response to: 1) acute hazards via household emergency plan adoption and 2) chronic hazards represented by behavior modification in response to daily air quality reporting where adoption of these two risk-reducing behaviors are viewed as increased individual resilience. Bivariate correlation analysis found that a north – south grouping of coastal Louisiana was significantly …
Incorporating Calculus Concepts Into A Middle School Classroom, Randie Barbera Bailey
Incorporating Calculus Concepts Into A Middle School Classroom, Randie Barbera Bailey
LSU Master's Theses
The Common Core State Standards for Mathematics were released in June of 2010 and full implementation into our schools is being required in the fall of 2013. The standards require teachers and students to be more focused and rigorous in what they teach and learn. This shift in learning towards focus, coherence, fluency, deep understanding, and applications was to improve math education in the United States so that our students become more competitive in the global economy of the 21st century and to help more students to be college and career ready by grade twelve. It is now necessary for …
A Middle School's Response To Intervention : Successmaker For Math Remediation, Lauren Hutchinson
A Middle School's Response To Intervention : Successmaker For Math Remediation, Lauren Hutchinson
LSU Master's Theses
This thesis discusses the results obtained upon the implementation of an online math remediation program, SuccessMaker, as a component of Response to Intervention (RTI). The objective was to increase the content knowledge of students struggling in math. Woodlawn Middle chose a targeted group of students considered “at risk” in hopes of preparing them for the Louisiana Educational Assessment Program (LEAP). Yearly gains in SuccessMaker were compared to achievement levels on the math section of the LEAP test. Results showed that the more time spent on Success Maker resulted in higher gains in grade level. The gains in SuccessMaker did not …
Some Effects Of Nutrient And Flooding Stress Manipulation On Coastal Louisiana Wetland Vegetation, James Stephen Ialeggio
Some Effects Of Nutrient And Flooding Stress Manipulation On Coastal Louisiana Wetland Vegetation, James Stephen Ialeggio
LSU Master's Theses
Freshwater diversions are a relatively recently utilized tool in wetland loss mitigation that stimulate an organic accretion response in marsh vegetation, which is based in root production and thus belowground biomass. The effectiveness of freshwater diversions in slowing marsh loss probably varies across a gradient of the factors they supply: decreased salinity, increased nutrient concentrations, and increased inundation. Flooding stress is commonly thought to be the overriding factor limiting wetland vegetation growth, however its influence may vary across salinity and nutrients. Therefore, plugs of Spartina patens were planted in four “marsh organs” consisting each of 36 sediment-filled PVC pipes of …
Statistical Classification Problems In Assessment Of Teachers, Xuan Wang
Statistical Classification Problems In Assessment Of Teachers, Xuan Wang
LSU Master's Theses
Classification and regression trees form an important and indispensable tool in data analysis and classification problems. Class trees are described in detail with examples. The method is applied to a data set pertaining to evaluation of teachers. In addition, two other classification methods, bagging and AdaBoost are explained. These methods improve existing classifiers to nearly optimal classifiers.
Assessment Of Detection And Characterization Of Simulated Lung Nodules With Low-Dose Ct, Kendrick J. Williams
Assessment Of Detection And Characterization Of Simulated Lung Nodules With Low-Dose Ct, Kendrick J. Williams
LSU Master's Theses
Purpose: The quality of a computed tomography (CT) image and the dose delivered depend upon the acquisition parameters used to acquire the CT scan. Current, voltage and pitch are acquisition parameters that affect the image quality. The purpose of this study was to determine the influence of current, voltage and pitch on physicians’ ability to characterize small, solid nodules with low-dose computed tomography. Methods: A database of lung scans with various acquisition parameters was compiled. A torso phantom and acrylic beads were used to simulate the lungs and nodules within the lungs. Several sizes of acrylic sphere were used to …
The Effect Of Teaching Biology Concepts With Animations Compared To Static Cartoons On Content Retention, Rebecca Adams Polk
The Effect Of Teaching Biology Concepts With Animations Compared To Static Cartoons On Content Retention, Rebecca Adams Polk
LSU Master's Theses
This study explores the effect of animations versus static cartoons on students’ content retention in a high school biology classroom. Students were pre-tested prior to the introduction of content in three units of study: cellular transport, protein synthesis, and mitosis. After instruction on the topic via PowerPoint presentations, students were randomly assigned to either the test group or experimental group for each unit. The control group was removed from the room and given a series of static cartoons with captions to view. The experimental group viewed an animation on the topic, accompanied by teacher narration, which consisted of the captions …
Simple And Fast Reconstruction Of 6 Mv Radiotherapy Doses To The Whole Body, Lydia Joyce Wilson
Simple And Fast Reconstruction Of 6 Mv Radiotherapy Doses To The Whole Body, Lydia Joyce Wilson
LSU Master's Theses
Background: State-of-the-art radiotherapy medical records include reliable estimates of the therapeutic radiation but are known to underestimate the stray radiation exposures by 40% away from the treatment field. Most commonly, stray radiation exposures are reconstructed using empirical formulas and/or lookup tables containing machine-specific dose measurements. The purpose of this study was to develop a physics-based model to calculate exposures to the whole body of patients who receive external beam photon radiotherapy. Methods: We developed a physics-based analytic algorithm to predict absorbed dose from therapeutic, scatter, and leakage radiation. The model includes separate terms to characterize photon production, attenuation, and scattering …
Effects Of Physicochemical Properties And Macrohabitat On The Foraging Ecology And Condition Of The Centrarchid Assemblage Of The Atchafalaya River Basin, Louisiana, Brett A. Miller
LSU Master's Theses
The Atchafalaya River Basin (ARB), Louisiana supports a diverse centrarchid assemblage, characterized by abundant populations of largemouth bass Micropterus salmoides, black crappie Pomoxis nigromaculatus, warmouth Lepomis gulosus, bluegill Lepomis macrochirus, redspotted sunfish Lepomis miniatus, longear sunfish Lepomis megalotis and redear sunfish Lepomis microlophus. This dynamic floodplain ecosystem is comprised of a mosaic of macrohabitats, including natural bayous, shallow lakes, dead-end and open pipeline canals. I conducted an extensive feeding ecology study to determine the influence of these macrohabitats on foraging activity through stomach content and stable isotope analyses. I collected 2,036 centrarchids with electrofishing efforts in the summers of 2011 …
Implementing And Managing Self Assessment Procedures, Terry Leman Armstrong
Implementing And Managing Self Assessment Procedures, Terry Leman Armstrong
LSU Master's Theses
This study tests the hypothesis that implementing, managing and enhancing self-assessment procedures may improve learning. One hundred and fifty seven (157) financial math students in a high school with a predominantly at-risk population were divided randomly into an experimental group (self assessment and reflection) and a control group (traditional practice work). The experimental group performed significantly better than the control group (p = 0.02). The experimental group increased their scores from an average of 5.3 out of 18 correct on the pre-test to an average of 11 out of 18 correct on the post-test. The control group increased their scores …
Bachman's Sparrow (Peucaea Aestivalis) Population Structure Across The Southeastern Usa, Blain Annette Cerame
Bachman's Sparrow (Peucaea Aestivalis) Population Structure Across The Southeastern Usa, Blain Annette Cerame
LSU Master's Theses
Understanding gene flow and population structure in wildlife populations helps managers to protect distinct genetic lineages and genetic variation in small, isolated populations at high risk of extinction. I assessed genetic diversity in Bachman’s Sparrows (Peucaea aestivalis) to evaluate the role of natural barriers in shaping evolutionarily significant units as well as the effect of anthropogenically-caused habitat loss and fragmentation on population differentiation and diversity. Genetic diversity was assessed across the geographic range of Bachman’s Sparrow by genotyping 226 individuals at 18 microsatellite loci and sequencing 48 individuals at nuclear and mitochondrial DNA genes. Multiple analyses consistently demonstrated high levels …
Detection Of Interesting Traffic Accident Patterns By Association Rule Mining, Harisha Donepudi
Detection Of Interesting Traffic Accident Patterns By Association Rule Mining, Harisha Donepudi
LSU Master's Theses
In recent years, the accident rate related to traffic is high. Analyzing the crash data and extracting useful information from it can help in taking respective measures to decrease this rate or prevent the crash from happening. Related research has been done in the past which involved proposing various measures and algorithms to obtain interesting crash patterns from the crash records. The main problem is that large numbers of patterns were produced and vast number of these patterns would be obvious or not interesting. A deeper analysis of the data is required in order to get the interesting patterns. In …
Renewable Energy Across The 50 United States And Related Factors, Cynthia Brit Christenson
Renewable Energy Across The 50 United States And Related Factors, Cynthia Brit Christenson
LSU Master's Theses
Renewable energy production replaces diminishing non-renewable energy sources including fossil fuels. Major sources of renewable energy include biofuels, geothermal, hydroelectric, solar thermal and photovoltaic, wind, wood, and biomass. Greater use of renewable energy sources can fill gaps in energy as non-renewable sources are depleted, provide more energy independence at a state and national level, and help address climate change by reducing greenhouse gas emissions from combustion of fossil fuels. The research objectives of this thesis are two-fold. First, which U.S. states are leaders in renewable energy production? Second, what factors may account for variation among U.S. states in levels of …
Evaluating The Effectiveness Of Response To Intervention In Ela And Math For Sixth, Seventh, And Eighth Grade Students, Shehla Khan
LSU Master's Theses
Abstract This study examined the combined effectiveness of Tier I and Tier II instruction in the context of a Response to Intervention framework with sixth, seventh and eighth grade students both in ELA and Math. The Tier I interventions emphasized topics from the Grade Level Expectations that the students were having difficulties grasping during regular classroom instruction. Tier II instruction mainly emphasized preparing students for the standardized iLEAP and LEAP tests. These students were then compared with a group of similar students who did not receive tiered instructions (control group). Students who participated in Tier I or Tier II instructions …
The Effects Of The Peer Instruction Technique Think-Pair-Share On Students' Performance In Chemistry, Kathleen Sipos Trent
The Effects Of The Peer Instruction Technique Think-Pair-Share On Students' Performance In Chemistry, Kathleen Sipos Trent
LSU Master's Theses
Think-Pair-Share is an active learning strategy which involves pairs of students discussing answers to questions or problems. The purpose of this study was to determine if the peer instruction technique Think-Pair-Share improved students’ performance in high-school chemistry. The teacher used one class of students as a control group. This group did not use Think-Pair-Share for the chapter investigated, “Chemical Reactions”. The teacher used two other classes of students, who did use Think-Pair-Share for this chapter, as the experimental group. There was no difference in the learning gains between the control and experimental groups. Think-Pair-Share and normal classroom instruction methods were …
The Effects Of Self-Examination To Peers On Student Learning In Physical Science, Leah Ellis Thompson
The Effects Of Self-Examination To Peers On Student Learning In Physical Science, Leah Ellis Thompson
LSU Master's Theses
This study was undertaken to test if the use of self-explanation to a peer would affect learning outcomes in the classroom. The outcomes of classes taught using the self-explanation technique were compared to outcomes from traditional lecture courses in lessons of comparable content. Great Scholars and traditional students in a sixth grade physical science classroom setting were given pre-and post-tests in two units of study, matter and waves. In the matter unit, students participated in a lesson on density using traditional lecture and a lesson on changes in matter using self-explanation. In the waves unit, students utilized lecture instruction for …
Effects Of Predator Reduction On Nest Success Of Upland Nesting Ducks In Low-Grassland Density Landscapes In Eastern North Dakota, Michael Buxton
Effects Of Predator Reduction On Nest Success Of Upland Nesting Ducks In Low-Grassland Density Landscapes In Eastern North Dakota, Michael Buxton
LSU Master's Theses
Nest success of upland nesting ducks is the primary driver of duck population growth in the Prairie Pothole Region. Nest success is greatly influenced by nest predation and the amount of available nesting cover on the landscape. The decline in acres enrolled in the Conservation Reserve Program (CRP) in this region has negatively impacted the amount of available nesting cover, making nesting cover sparse and confined to small patches where predation rates are potentially elevated. I evaluated the efficacy of seasonal predator reduction on increasing nest success on low-grassland density (>10% grassland cover), 93 km2 landscapes in two different …
Inductivley Coupled Plasma Optical Emission Spectroscopy Analysis Of Heavy Metal Concentrations In Gulf Menhaden (Brevoortia Patronus) Populations In The Northern Gulf Of Mexico From 2011 To 2012, Hannah Paula Rockett
Inductivley Coupled Plasma Optical Emission Spectroscopy Analysis Of Heavy Metal Concentrations In Gulf Menhaden (Brevoortia Patronus) Populations In The Northern Gulf Of Mexico From 2011 To 2012, Hannah Paula Rockett
LSU Master's Theses
In 2010, the Deepwater Horizon (DWH) oil spill, released 4.9 million barrels of oil into the Gulf of Mexico, creating the largest marine oil spill in the history of the U.S. petroleum industry. Trace metals, including those from crude oil, were dispersed in the water column and bound to suspended particulates. As obligate filter-feeding omnivores and a predominate fishery in the Gulf of Mexico, Gulf menhaden (Brevoortia patronus) are susceptible to trace metal accumulation. Samples of menhaden were collected at two locations in coastal Louisiana, Grand Isle (GI) and Vermillion Bay (VB), with VB serving as the non-impacted DWH oil …
Acoustic Biomass Of Fish Associated With An Oil And Gas Platform Before, During, And After "Reefing" It In The Northern Gulf Of Mexico, Grace Elizabeth Harwell
Acoustic Biomass Of Fish Associated With An Oil And Gas Platform Before, During, And After "Reefing" It In The Northern Gulf Of Mexico, Grace Elizabeth Harwell
LSU Master's Theses
With over ~2600 oil and gas platforms (platforms) remaining in the northern Gulf of Mexico (Gulf), the Gulf States have access to one of the most unique fisheries in the world. Because of high abundances of game fishes around platform legs and the popular belief that platforms enhance fish stocks, both Louisiana and Texas have created artificial reef programs based upon the decommissioning of platforms. As oil and gas fields continue to be retired, oil and gas companies may find that “reefing” or toppling a platform may be a more economically viable alternative to complete removal of material. Questions remain …
Approximate Sequence Alignment, Xuanting Cai
Approximate Sequence Alignment, Xuanting Cai
LSU Master's Theses
Given a collection of strings and a query string, the goal of the approximate string matching is to efficiently find the strings in the collection, which are similar to the query string. In this paper, we focus on edit distance as a measure to quantify the similarity between two strings. Existing q-gram based methods use inverted lists to index the q-grams of the given string collection. These methods begin with generating the q-grams of the query string, disjoint or overlapping, and then merge the inverted lists of these q-grams. Several filtering techniques have been proposed to segment inverted lists in …
The Feasibility Of Using Vanadium And Nickel To Track Oil Spills In Coastal Environments, Sean Patrick Kenny
The Feasibility Of Using Vanadium And Nickel To Track Oil Spills In Coastal Environments, Sean Patrick Kenny
LSU Master's Theses
Crude oil has been increasing in world demand over the past century. It is known that oil is resistant to weathering processes and if spilled, can cause serious environmental damage to an area, on land or sea. A complementary approach to current methods of tracking oil and identifying spill-impacted sediments may be to measure trace metals associated with crude oil. Trace metals, such a vanadium (V) and nickel (Ni) are known to be elevated in concentration in some oil sources, but little work has been done on this topic. This research explored less expensive and time-consuming methods to track or …
Parallel Suffix Tree Construction For Genome Sequence Using Hadoop, Umesh Chandra Satish
Parallel Suffix Tree Construction For Genome Sequence Using Hadoop, Umesh Chandra Satish
LSU Master's Theses
Indexing the genome is the basis for many of the bioinformatics applications. Read mapping (sequence alignment) is one such application to align millions of short reads against reference genome. Several tools like BLAST, SOAP, BOWTIE, Cloudburst, and Rapid Parallel Genome Indexing with MapReduce use indexing technique for aligning short reads. Many of the contemporary alignment techniques are time consuming, memory intensive and cannot be easily scaled to larger genomes. Suffix tree is a popular data structure which can be used to overcome the demerits of other alignment techniques. However, constructing the suffix tree is highly memory intensive and time consuming. …
The Development Of An Ac Magneto- Optic Kerr Effect System For The Characterization Of Pulsed Laser Deposited Co₂Mnsi-Xal1-X Heusler Alloy Thin Films, Matthew Stephen Champagne
The Development Of An Ac Magneto- Optic Kerr Effect System For The Characterization Of Pulsed Laser Deposited Co₂Mnsi-Xal1-X Heusler Alloy Thin Films, Matthew Stephen Champagne
LSU Master's Theses
The Kerr rotation and Kerr ellipticity of thin films can be measured using an AC magneto-optic Kerr effect (AC-MOKE) system. The longitudinal MOKE measurements were taken for a series of Co2MnSixAl1-x thin films with values of x= 0.00, 0.25, 0.50, 0.75, 1.00. The films were fabricated using ultra high vacuum, pulsed laser deposition (PLD) techniques. The PLD targets were made using conventional arc-melting techniques. Using a Jones matrix analysis, it was shown that the Kerr rotation and Kerr ellipticity can be measured separately using two optical setups by taking advantage of a photoelastic modulator and lock-in techniques. Co2MnAl and Co2MnSi …
Predicting Mechanical Properties Of Southern Pine Lumber With Nondestructive Measurements, Jacob Romer
Predicting Mechanical Properties Of Southern Pine Lumber With Nondestructive Measurements, Jacob Romer
LSU Master's Theses
Predictive models were developed for stiffness and bending strength of southern pine 2x6, eight ft. lumber using nondestructive measurements of stresswave velocity, density and visual characteristics such as knots, slope of grain and rate of growth. To account for local areas of weakened material due to knots and slope of grain, a grid system was developed to quantify general knot size and location. Multiple regression models were created using these physical and visual measurements. Two sets of models were developed: one that removed influential samples with abnormal wavespeeds (greater than 18,000 ft./s) indicative of poor wood quality; and, models that …