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Articles 1 - 30 of 137
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Identification Of Morphemes And The Effect Of Memory Load On Second Language Learning, James A. Hebert
Identification Of Morphemes And The Effect Of Memory Load On Second Language Learning, James A. Hebert
Honors Theses
No abstract provided.
Using Foraminifera Shell Geochemistry To Test Proxies For Paleoenvironmental Reconstruction, Catherine Hudson
Using Foraminifera Shell Geochemistry To Test Proxies For Paleoenvironmental Reconstruction, Catherine Hudson
Honors Theses
No abstract provided.
Encoding Knots, Rachael Keller
Visualization And Analysis Of Wikipedia Data Relating To Louisiana And Its Culture, Morgan Hargrove
Visualization And Analysis Of Wikipedia Data Relating To Louisiana And Its Culture, Morgan Hargrove
Honors Theses
No abstract provided.
Modeling Deformations Of Solids At The Continuum Scale, Paxton Turner
Modeling Deformations Of Solids At The Continuum Scale, Paxton Turner
Honors Theses
No abstract provided.
Matrix Exponentiation Without Scaling And Squaring, Bruno Gabriel Beltran
Matrix Exponentiation Without Scaling And Squaring, Bruno Gabriel Beltran
Honors Theses
No abstract provided.
Deposition And Characteristics Of West Bay Sediment In The Mississippi River Delta, And The Effects Of Polymers On Sediment Erodibility, Patrick Robichaux
Deposition And Characteristics Of West Bay Sediment In The Mississippi River Delta, And The Effects Of Polymers On Sediment Erodibility, Patrick Robichaux
Honors Theses
No abstract provided.
Distributed Augmented Reality Communications And Interactions, Mitchell Mason
Distributed Augmented Reality Communications And Interactions, Mitchell Mason
Honors Theses
No abstract provided.
Geometrical Phases On The Poincaré And Bloch Spheres, Jason D. Mueller
Geometrical Phases On The Poincaré And Bloch Spheres, Jason D. Mueller
Honors Theses
No abstract provided.
Development Of Inexpensive Educational Robotics Tools, Brandon Oubre
Development Of Inexpensive Educational Robotics Tools, Brandon Oubre
Honors Theses
No abstract provided.
Assessing The Impacts Of Nutrient Load Reduction Scenarios On The Extent And Severity Of Hypoxia In The Northern Gulf Of Mexico, David Fertitta
Assessing The Impacts Of Nutrient Load Reduction Scenarios On The Extent And Severity Of Hypoxia In The Northern Gulf Of Mexico, David Fertitta
Honors Theses
No abstract provided.
Scattering Of Motion On A Half-Infinite Quantum Graph Tube, Jeremy Tillay
Scattering Of Motion On A Half-Infinite Quantum Graph Tube, Jeremy Tillay
Honors Theses
No abstract provided.
Increasing Student Engagement In The Secondary Math Classroom, Chantell Holloway Walker
Increasing Student Engagement In The Secondary Math Classroom, Chantell Holloway Walker
LSU Master's Theses
This thesis reports on a professional development package developed by the author to help three teachers increase the level of student engagement in their math classrooms. There were three phases: 1) initial presentation of strategies and sample lessons, 2) classroom implementation, 3) reflection and evaluation. As a result of the professional development, the Louisiana Compass Teacher Evaluation Rubric scores of the teachers improved in the area of student engagement. This thesis can be used as a guide for principals or instructional specialists who wish to provide professional development for small groups of teachers, with a focus on increasing student engagement.
An Analysis Of Risk Perceptions And Attitudes Towards Climate Change Among Residents Of Southeastern Louisiana, Heather Marie Brown
An Analysis Of Risk Perceptions And Attitudes Towards Climate Change Among Residents Of Southeastern Louisiana, Heather Marie Brown
LSU Master's Theses
Climate change is an important issue of concern, as its environmental impacts are already beginning to manifest in various means, such as through sea level rise and increased frequencies of storms. Areas of high vulnerability to the effects of climate change, such as southeastern Louisiana, are prime locations to initiate research in determining what factors influence individual’s risk perceptions towards climate change. This study aims is to identify key factors, specifically in the areas of socioeconomic, demographic, exposure, and attitudinal attributes, which affect climate change risk perceptions. The study area is that of the zip codes around Lake Pontchartrain in …
Effect Of The Herbicide Atrazine On Phytoplankton, Water Quality, And Ecosystem Functions In Louisiana Estuaries, Alexis Victoria Starr
Effect Of The Herbicide Atrazine On Phytoplankton, Water Quality, And Ecosystem Functions In Louisiana Estuaries, Alexis Victoria Starr
LSU Master's Theses
Pesticides are used primarily for agricultural purposes in the US and while these chemicals provide many benefits, the inherent toxicity of the compounds pose a substantial risk to the environment. These chemicals may enter water bodies in areas with a high proportion of agricultural land use through surface run off, ground water discharge, and erosion, and negatively impact non-target aquatic organisms. As a result, Louisiana’s estuaries may be vulnerable to a variety of compounds, including the herbicide atrazine. Atrazine is used extensively throughout the Midwest and has been known to enter the Mississippi River through surface runoff and ground water …
Sub-Marine Sediment Instability Near Southwest Pass Of The Mississippi River: Evidence Of Mass Movements From Raciochemistry And Other Proxies, Gregory Paul Keller
Sub-Marine Sediment Instability Near Southwest Pass Of The Mississippi River: Evidence Of Mass Movements From Raciochemistry And Other Proxies, Gregory Paul Keller
LSU Master's Theses
Mass wasting events are an important geomorphic control on the Mississippi River Delta Front. Short multicores (<50cm) and longer gravity cores (<3m) were collected seaward of the Southwest Pass of the Mississippi River Delta and were analyzed to assess the frequency, extent, and potential causes of submarine mass wasting events. Cores were analyzed for radionuclide activity, grain size, and density at 2cm resolution. Short-term sedimentation rates calculated from 7-Be are 2-16cm/y, while longer-term accumulation from 210-Pb are only 1.3-7.3 cm/y. In most cores, 210-Pb activity steadily decreases downcore without displaying a “stairstep” nature. However, seven cores have layers of low 210-Pb activity stratigraphically above layers with higher activity. In a gravity core from a mudflow gully, 210-Pb steadily decreases for the upper 70 cm before stabilizing for the remaining 150 cm. Clay content generally ranges between 25-40% and sand ranges between 5-15% with silt making up the rest of each sample. Sediment accumulation rates derived from 210-Pb in the short cores indicate that proximity to the river mouth has stronger influence than depositional environment (mudflow gully, depositional lobe, prodelta). This finding may be explained by rapid sedimentation rates coupled with a reduced tropical cyclone activity over the delta in the last seven years (2006-2013) which is a known cause of mass wasting events. The regions of decreased 210-Pb activity may be evidence of scavenging effects of plume sedimentation because they do not correspond with decreases in clay fraction. The layer of homogenized activity below 70cm in the gully core corresponds with a layer of decreased density. This layer occurs at a depth equivalent to 9-18 years, indicating mixing on a decadal scale from mudflows. These results may be explained by a lack of recent mass failures corresponding with lulls in tropical cyclone activity over the delta, preceded by a period of more active hurricane-driven mudflow activity.
Exploring Rational Numbers In Middle School, Robyn Jasmin Boudoin
Exploring Rational Numbers In Middle School, Robyn Jasmin Boudoin
LSU Master's Theses
The move by the state of Louisiana to fully implement the Common Core State Standards (CCSS) from 2013 -2014 school year on and to align all state mandated tests to the CCSS has caused teachers to change the way they teach and how they deliver content. The overall most crucial new part of the CCSS in Mathematics is the emphasis on the “Standards for Mathematical Practice”. In order to illustrate the meaning of the Mathematical Practice Standards, non routine problems must be used that allow students and teachers to “dig deeper” and practice their mathematical habits of mind. Rational numbers …
Hydrological Influences On Catahoula Lake In An Altered Floodplain, Lincoln Dugue
Hydrological Influences On Catahoula Lake In An Altered Floodplain, Lincoln Dugue
LSU Master's Theses
Floodplain lakes in floodplains of large rivers undergoing intensive alterations are subject to hydrologic alteration. One example is in the Lower Mississippi Alluvial Valley (LMAV) and pivotal habitat for wildlife. Catahoula Lake has experienced hydrologic regime alterations over the past ~150 years that may be contribute to changes in the habitat with expansion of woody plants. A Diversion Channel was constructed in 1972 to provide the natural, annual de-watering of the lake to maintain its ecological integrity, but ecologic changes are still occurring. Our general goal is to understand the hydrologic regime of the lake, particularly the historical hydrologic regime …
Impact Of Multileaf Collimator Configuration Parameters On The Dosimetric Accuracy Of 6-Mv Intensity-Modulated Radiation Therapy Treatment Plans, Nicholas Colin Petersen
Impact Of Multileaf Collimator Configuration Parameters On The Dosimetric Accuracy Of 6-Mv Intensity-Modulated Radiation Therapy Treatment Plans, Nicholas Colin Petersen
LSU Master's Theses
Purpose: To improve the dosimetric accuracy of intensity modulated radiation therapy (IMRT) dose distributions as calculated by the treatment planning system (TPS) by optimizing the parameters that govern multileaf collimator (MLC) transmission and rounded leaf offset. Methods: The MLC leaf transmission was optimized based on measurements made with ionization chambers and radiographic film. The rounded leaf offset table was optimized by measuring the radiation field edge as a function of leaf bank position with an ionization chamber in a water scanning tank and comparing the location to TPS equivalent dose calculations. Optimizations were validated by performing IMRT quality assurance (QA) …
Dosimetric Advantages Of Personalized Phantoms For Quality Assurance And Research In Radiation Dose Measurements, Andrew Michael Halloran
Dosimetric Advantages Of Personalized Phantoms For Quality Assurance And Research In Radiation Dose Measurements, Andrew Michael Halloran
LSU Master's Theses
Background: Phantoms have been in use in medical and health physics for decades, serving as a surrogate for human tissue in several different applications. In radiation dose measurements, anthropomorphic phantoms are designed with tissue substitute materials to mimic both the elemental compositions and anatomical structures of the human body. In some cases the performance of anthropomorphic phantoms for personalized measurements is severely limited by the use of reference anatomy in the geometric design. 3D printing could potentially be used to overcome some of these shortcomings by enabling rapid fabrication of personalized phantoms for individual patients based on radiographic imaging data. …
A Study Of Resiliency In New Orleans Neighborhoods Ten Years After Hurricane Katrina, Paul Ramnauth Algu
A Study Of Resiliency In New Orleans Neighborhoods Ten Years After Hurricane Katrina, Paul Ramnauth Algu
LSU Master's Theses
Hurricane Katrina made landfall on August 29, 2005, flooding over eighty percent of the Greater New Orleans area and causing a mass exodus of the local population. Statistical analysis was used to quantify recovery at a neighborhood level and answer the following questions: What is the recovery rate of New Orleans neighborhoods ten years after Hurricane Katrina? What factors account for variation in recovery rates among neighborhoods? Six neighborhoods in Orleans Parish were selected for further study based on their unique geographical and recovery metrics. Recovery rates among the seventy-two neighborhoods were based on a comparison of United States Postal …
Augite In Komatiitic Basalts: A Study Of The Mobility Of Trace Elements During Rock Alteration, Alesha C. Morabito
Augite In Komatiitic Basalts: A Study Of The Mobility Of Trace Elements During Rock Alteration, Alesha C. Morabito
LSU Master's Theses
Komatiitic basalts are ultramafic rocks formed from volcanic liquids containing less than 18 wt.% magnesium oxide that can be linked, spatially, geochemically and texturally to komatiites. Archean komatiites and komatiitic basalts are critical to models of early Earth’s mantle evolution. Major and trace elements in these rocks are poorly preserved due to early sub-seafloor alteration with superimposed regional metamorphism: in particular the alkali, alkaline earths, and other elements with low valence numbers. Current analytical methods focus on analyzing whole rock, fresh olivines and melt inclusions to evaluate elemental concentrations and for petrogenetic studies. Although these methods establish elemental concentrations, REE, …
Advanced Math Curriculum - Act Prep And Pre-College Algebra, Lauren Louise Morris
Advanced Math Curriculum - Act Prep And Pre-College Algebra, Lauren Louise Morris
LSU Master's Theses
The purpose of this thesis was to create a non-traditional Advanced Mathematics course paired with Math XL® for School (MXL) for senior-level students with low ACT Math scores. The Advanced Math course was created with the purpose of helping students increase their ACT Math scores and preparing them for first-year college math, College Algebra. The course was taught at a private high school in Louisiana for the 2014-2015 school year and is attached to this thesis as an appendix. Upon completion of this course, the participating students achieved an average increase of 3.1 points in their ACT Math scores. After …
Microtopographic Ecohydrology Of A Forested Wetland In Louisiana, Yu-Hsin Hsueh
Microtopographic Ecohydrology Of A Forested Wetland In Louisiana, Yu-Hsin Hsueh
LSU Master's Theses
Coastal wetland forest ecosystems rely on the intimate interactions of hydrology, salinity, and coastal forest vegetation. The boundary between marsh and forest is often where hummock-swale terrain exists. It remains unknown as to the degree to which trees may experience varied salinity level within hummocks provided with freshwater flux. This study examined the hydrological regime of the hummock-swale terrain that resulted in salinity variation and whether freshwater source exists for baldcypress. Natural tracers of stable isotopes of water and salinity were applied to understand the sources of water. To better examine the tracers used, we conducted several experiments to gain …
The Stratal Architecture Of The False River Point Bar (Lower Mississippi River, La), Alexandra Lechnowskyj
The Stratal Architecture Of The False River Point Bar (Lower Mississippi River, La), Alexandra Lechnowskyj
LSU Master's Theses
The False River point bar system is located roughly thirty miles north of Baton Rouge, LA. It is an oxbow lake cut off from the Mississippi River, and represents a large-scale modern analogue to the ancient systems of northeastern Alberta, Canada, specifically those of the Athabasca Oils Sands. While previous work has been done regarding the general architecture of a point bar, there is still omplexity associated with larger scale systems, as studies have been mostly based on small and medium-scale examples. Examination of the point bar was done through a combination of coring and geophysical logging, followed by software …
A Study Of Mathematical Equivalence: The Importance Of The Equal Sign, Christy De'sha Duncan
A Study Of Mathematical Equivalence: The Importance Of The Equal Sign, Christy De'sha Duncan
LSU Master's Theses
The purpose of this study was to investigate students’ understanding and knowledge of the equal sign, so that instructional resources could be identified to improve student’s conceptual understanding about mathematical equivalence. A test, consisting of a combination of items taken from previous studies, as well as items developed by the researchers, was designed to gauge students’ understanding of the equality symbol. The test was administered to 54 seventh-graders in Spring 2015. The results of the test indicated a significant number of students in our district have a limited understanding of mathematical equivalence. This papers ends with some suggested activities recommended …
Pytracks: A Tool For Visualizing Fish Movement Tracks On Different Scales, Ross Fossum
Pytracks: A Tool For Visualizing Fish Movement Tracks On Different Scales, Ross Fossum
LSU Master's Theses
A fundamental problem in conservation biology and fisheries management is the ability to make educated decisions based on the data collected. Fish populations and their spatial distributions need to be represented accurately for conversation efforts and management decisions. Methods such as modeling, surveying, and tracking can all be used to collect data on a particular fishery. To include the movement patterns in conservation and management, one needs to work with and process fish tracking data or data exported from fish movement simulation models. This data can often be difficult to process. This topic is becoming increasingly popular as technology to …
Planktonic Influence On The Toxicity Of Hewafs (High-Energy Water Attenuated Fractions), Erin Elizabeth Saal
Planktonic Influence On The Toxicity Of Hewafs (High-Energy Water Attenuated Fractions), Erin Elizabeth Saal
LSU Master's Theses
The Deep Water Horizon oilrig explosion led to the release of 6.8 ± 1.7 x 108 kg or 4.9 million barrels of petroleum hydrocarbons into the Gulf of Mexico. The spill persisted from the end of April to mid July 2010 affecting a significant portion of the Gulf coast. The effects of this spill are being studied in labs across the country, and this thesis investigated high-energy water accommodated fractions (HEWAFs) as a potential tool for use in this effort. Water accommodated fractions (WAFs) are mediums containing only the fraction of petroleum that remains in aqueous phase after a mixing …
The Correlation Between Parental Involvement And Student Academic Achievement, Damien Ramon Antoine
The Correlation Between Parental Involvement And Student Academic Achievement, Damien Ramon Antoine
LSU Master's Theses
This study investigates whether or not there is a correlation between parental involvement and student academic achievement. A sample of 103 students at Madison Preparatory Academy and CSAL Middle School (CSAL, Inc) were tested for correlations between the degree with which their parents are engaged in their academic lives and the success that they achieve as a result. Small correlations were found to exist between some of the variables tested. The test group consisted of a group of high school students from Madison Preparatory Academy (MPA) and their siblings who attended CSAL Middle which is the feeder school for MPA. …
Large-Scale Geometric Data Decomposition, Processing And Structured Mesh Generation, Wuyi Yu
Large-Scale Geometric Data Decomposition, Processing And Structured Mesh Generation, Wuyi Yu
LSU Doctoral Dissertations
Mesh generation is a fundamental and critical problem in geometric data modeling and processing. In most scientific and engineering tasks that involve numerical computations and simulations on 2D/3D regions or on curved geometric objects, discretizing or approximating the geometric data using a polygonal or polyhedral meshes is always the first step of the procedure. The quality of this tessellation often dictates the subsequent computation accuracy, efficiency, and numerical stability. When compared with unstructured meshes, the structured meshes are favored in many scientific/engineering tasks due to their good properties. However, generating high-quality structured mesh remains challenging, especially for complex or large-scale …