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2014

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The Impact Of Student Centered Learning Strategies In Middle School Earth Science, Zane Jay Whittington Jan 2014

The Impact Of Student Centered Learning Strategies In Middle School Earth Science, Zane Jay Whittington

LSU Master's Theses

Research continues to reinforce that student centered classrooms and interactive engagement (IE) strategies, when used effectively, can produce considerable gains compared to traditional instruction methods. In this study, IE strategies, primarily modeling instruction, were compared to traditional instruction in a middle school classroom to determine if IE strategies would have an impact in two specific areas: graphing ability and science reasoning skills. Class mean scores on tests were compared over time to show that IE strategies produced greater gains in graphing and science reasoning than traditional instruction for one group. The other group did not see significant differences in graphing …

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Effects Of Latitude On The Competitive Ability Of Native And Invasive Genotypes Of Phragmites Australis, Anthony K. Chow Jan 2014

Effects Of Latitude On The Competitive Ability Of Native And Invasive Genotypes Of Phragmites Australis, Anthony K. Chow

LSU Master's Theses

One commonly cited mechanism for the success of invasive species is their superior competitive ability relative to that of native species. Although 88% (22 of 25) of the empirical studies support the prediction that the strength of competition for native species increases with latitude, no studies to date have compared the competitive ability of native and co-occurring invasive species across a broad latitudinal range. In a greenhouse, I investigated whether the competitive ability of North American native and European invasive haplotypes of Phragmites australis vary with latitude. Another widespread, non-indigenous haplotype, the Gulf Coast haplotype, was also included for assessment …

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Impact Of Intelligent Transportation Systems On Parallel Hybrid Electric Heavy Duty Vehicles, Ahmed Shihab Ahmed Al-Samari Jan 2014

Impact Of Intelligent Transportation Systems On Parallel Hybrid Electric Heavy Duty Vehicles, Ahmed Shihab Ahmed Al-Samari

Graduate Theses, Dissertations, and Problem Reports (ETD)

A hybrid electric vehicle uses multiple sources of energy that can be independently or all together used to propel the wheels. In the presented work, the vehicle propulsion controller (VPC) for a parallel heavy duty hybrid electric vehicle (HEV) model has been modified to manage the alternative power source in advance based on the forthcoming traffic information. The goal is to prepare the powertrain for the next power event by making more energy storage capacity to capture free energy via regenerative braking or store more energy for expected need. The method of preparation will be by managing the battery state …

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Effect Of Biaxial And Triaxial Stresses On Coal Mine Shale Rocks, Shrey Arora Jan 2014

Effect Of Biaxial And Triaxial Stresses On Coal Mine Shale Rocks, Shrey Arora

Graduate Theses, Dissertations, and Problem Reports (ETD)

High horizontal in-situ stresses and weak immediate roof rock have been a detrimental combination for underground coal mines in the eastern United States. Also, these conditions pose challenging ground control problems to researchers. One such problem, referred to by many names, is the "cutter roof," "kink failure," "gutter," or "pressure cutting." It is a compressional type failure of the roof, commonly observed in Appalachian underground coal mines with laminated roof rock.;The available literature concerning the aforementioned failure is limited in terms of our understanding of the mechanism underlying the failure. The fundamental research presented in this thesis is an attempt …

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Energy-Efficient Wireless Interconnect Design For Non-Destructive Testing (Ndt) Applications, Lokesh Avala Jan 2014

Energy-Efficient Wireless Interconnect Design For Non-Destructive Testing (Ndt) Applications, Lokesh Avala

Graduate Theses, Dissertations, and Problem Reports (ETD)

A method for non-destructive, wireless testing of integrated circuits(ICs) is presented in this thesis. This system is suitable for applications which require testing after the manufacturing of ICs. According to Moore's Law the number of transistors in an IC doubles every two years, the current probing equipment will also have to reduce its size accordingly which will be difficult after a certain point. The proposed system relies on near field communication in order to transfer data between probe and device under test. The probe and IC will include small antenna and a transceiver circuit. The antenna and the transceiver circuit …

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Art Tweets: A Content Analysis Of Social Media Activity Among Six Top Art Museums In The U.S.A., Patricia Ann Milford-Hoyt Jan 2014

Art Tweets: A Content Analysis Of Social Media Activity Among Six Top Art Museums In The U.S.A., Patricia Ann Milford-Hoyt

LSU Master's Theses

This study presents a content analysis of Twitter posts tagged with one of six institutions to establish uses and gratifications with this medium and the art museum industry. Due to industry norms, copyright law, museums traditionally do not permit photography and therefore may limit the advancement of their mission through misuse of the social media. This study establishes a baseline by seeking to understand how museums and individual account holders engage on Twitter within the art museum space as well as begin to unearth whether museums are misusing this media outlet and limiting their potential to educate the public while …

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Restraint Moments Due To Thermal Gradients In Continuous Prestressed Concrete Girder Bridges, Sushovan Ghimire Jan 2014

Restraint Moments Due To Thermal Gradients In Continuous Prestressed Concrete Girder Bridges, Sushovan Ghimire

LSU Master's Theses

This research is motivated by the need to develop new bridges, using new materials and construction details to achieve the goal of building longer span bridges that are safe and durable. The study of precast/prestressed concrete bridges made continuous started early in the 1960’s. Continuous bridges have many advantages compared to simple span bridges such as reduction in structural depth, riding comfort and reserve load capacity under overload conditions. They also eliminate joints that require a lot of maintenance and cause deterioration in some cases. The design and construction of continuous bridges requires the consideration of many factors that are …

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Characterization Of A Σ54-Dependent Response Regulator, Tepr, In The Rice-Pathogenic Bacterium Burkholderia Glumae And Development Of Biocontrol Strategies For Bacterial Panicle Blight Of Rice, Surendra Osti Jan 2014

Characterization Of A Σ54-Dependent Response Regulator, Tepr, In The Rice-Pathogenic Bacterium Burkholderia Glumae And Development Of Biocontrol Strategies For Bacterial Panicle Blight Of Rice, Surendra Osti

LSU Master's Theses

Bacterial panicle blight, caused by Burkholderia glumae, is a major bacterial disease of rice in Louisiana. This bacterium contains several virulence factors required for disease development such as toxoflavin, lipase and flagella. In a genome-wide search for regulatory factors related to the virulence of B. glumae, tepR was identified as a negative regulator for toxoflavin production and found to encode a sigma 54-dependent response regulator. TepR is homologous to LuxO, a quorum-sensing signaling component of Vibrio spp. A markerless tepR deletion mutant of B. glumae 336gr-1, LSUPB401, produced more toxoflavin and showed higher lipase and protease activities compared to the …

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Time Frame, A K M Jabed Rashel Jan 2014

Time Frame, A K M Jabed Rashel

LSU Master's Theses

I am interested in painting figures from direct observation as well as from photographs and memory in an invented theatrical interior space. My models act in an artificial stage to create the drama of a narrative. My figurative paintings present a rolling panoramic space that is manipulated over time. In addition, as a foreign student I had access to many sights in the new world once I came to the United States for the very first time. The expansiveness of the capital culture helped to develop the depth of my narratives in my art work.

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Effects Of Induced Plant Resistance And Potassium Fertilization Rates On Soybean Looper (Chrysodeixis Includens) Development In Soybean, Xuan Chen Jan 2014

Effects Of Induced Plant Resistance And Potassium Fertilization Rates On Soybean Looper (Chrysodeixis Includens) Development In Soybean, Xuan Chen

LSU Master's Theses

Soybean looper, Chrysodeixis includens (Walker), is one of the most destructive pests of soybean in the southern U.S. It is highly resistant to most insecticides. Induced host plant resistance and cultural control are sought as alternative control tactics. In this study, effects of induced resistance by exogenous application of elicitors were estimated on soybean looper development in soybean. Three different known elicitors of SAR (systemic acquired resistance), Actigard 50WG (acibenzolar-S-methyl), Regalia (extract of Reynoutria sachalinensis) and methyl jasmonate (MeJA), were applied to soybean plants at R2 and R5 stages to determine if these chemicals could induce plant resistance and lower …

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The Analysis & Implementation Of Key Innovation Methods In Order To Prove That Innovation Is Required For Promoting Market Growth In The United States Track & Field Industry, Michael Hays Lauro Jan 2014

The Analysis & Implementation Of Key Innovation Methods In Order To Prove That Innovation Is Required For Promoting Market Growth In The United States Track & Field Industry, Michael Hays Lauro

LSU Master's Theses

In relation to the rest of the world, the track and field industry within the United States lacks interest from the public. The market makes a name for itself during the short period of time the sport is televised in the Olympic Games. This is a problem for the elite athletes who are considered professional but have little to show for this title. The current marketing strategies and distribution of wealth within the industry are ineffective and detrimental to the future success of the sport. We must point the finger at the governing powers and demand a change. I believe …

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Assessment Of Habitat Quality For Red Snapper, Lutjanus Campechanus, In The Northwestern Gulf Of Mexico: Natural Vs. Artificial Reefs, Brittany Dawn Schwartzkopf Jan 2014

Assessment Of Habitat Quality For Red Snapper, Lutjanus Campechanus, In The Northwestern Gulf Of Mexico: Natural Vs. Artificial Reefs, Brittany Dawn Schwartzkopf

LSU Master's Theses

Habitat quality of natural and artificial reefs for red snapper (Lutjanus campechanus) in the northwestern Gulf of Mexico (Gulf) is important as this area is home to the majority of the Gulf’s artificial reef system, in the form of oil and gas platforms, in addition to the largest extent of high vertical relief natural habitat. This study sought to assess habitat quality of natural reefs of varying habitat complexity and an artificial reef complex located on the LA continental shelf. Habitat quality was assessed by comparing red snapper diets and foraging patterns, and nutritional condition using the liver-somatic index (LSI) …

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Mechanical And Thermal Properties Of Fly Ash-Based Geopolymer Cement, Fenghong Fan Jan 2014

Mechanical And Thermal Properties Of Fly Ash-Based Geopolymer Cement, Fenghong Fan

LSU Master's Theses

The geopolymer concrete is a more durable and green material with less CO2 emission and less energy consuming as compared with the widely used Portland cement (PC) concrete. In this thesis, an experimental study of the thermo-mechanical properties of a cement prepared using a class F fly ash and three different alkali-activators (NaOH activator, NaOH and Na2SiO3 mixture activator, and KOH and Na2SiO3 mixture activator) is presented. The mechanical properties, including the compressive strength, shrinkage, weight loss, and chemical composition, are investigated utilizing several key tools, such as X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and Energy Dispersive X-ray Spectroscopy …

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Effect Of Tissue Source On Adult Equine Multipotent Stromal Cell Pluripotency Induction Treatment With Synthetic Mrna, Javier Martin Jarazo Jan 2014

Effect Of Tissue Source On Adult Equine Multipotent Stromal Cell Pluripotency Induction Treatment With Synthetic Mrna, Javier Martin Jarazo

LSU Master's Theses

Autogenous and autologous adult multipotent stromal cells are applied to treat equine musculoskeletal injuries in clinical practice. However, options for autologous therapy in the equine specie are restricted due to the limited biological material obtained or MSCs tissue harvest procedure and because of their unpredictable in vivo behavior. Induced pluripotent stem cells represent an alternative to overcome these limitations. Traditionally, iPSCs are produced by introducing DNA for early embryonic genes into cells with viruses. The method tested in this study, avoids the use of viral vectors and potential for exogenous DNA integration into the cell’s genome by utilizing a lipid …

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Effects Of Feeding Milk Replacer Once, Twice Or Three Times Daily On Growth And Performance In Neonatal Holstein Calves, Michael Thomas Jan 2014

Effects Of Feeding Milk Replacer Once, Twice Or Three Times Daily On Growth And Performance In Neonatal Holstein Calves, Michael Thomas

LSU Master's Theses

Sixty-three neonatal Holstein calves (45 female; 18 male) were assigned to one of 3 treatments at d 2 of age to study effects of milk replacer feeding frequency on growth, performance, and health. Treatments consisted of 1X, with total amount of reconstituted milk replacer fed 1X/day at 6:00 a.m.; 2X, with total amount of reconstituted milk replacer divided into 2 equal amounts and fed at 6:00 a.m. and 5:00 p.m.; or 3X, with total amount of reconstituted milk replacer divided into 3 equal amounts and fed at 6:00 a.m., 12:00 noon, and 5:00 p.m. Calves were housed in individual hutches …

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Temporal Variability Of Particulate Organic Carbon Fluxes In The Northern Gulf Of Mexico, Somiddho Bosu Jan 2014

Temporal Variability Of Particulate Organic Carbon Fluxes In The Northern Gulf Of Mexico, Somiddho Bosu

LSU Master's Theses

There is limited data of Particulate Organic Carbon (POC) export from the Northern Gulf of Mexico and this work presents the first estimation of the efficiency of the “biological pump” in this region. In oligotrophic oceans like the Gulf of Mexico, POC is the main source of particles and POC flux is the key mechanism for the removal of particle reactive contaminants and pollutants from upper ocean water column. Particle-reactive, the naturally occurring radionuclides are useful tracers of the sinking flux of organic matter from the surface to the deep ocean. The disequilibrium between natural radioisotope pair 238U-234Th as well …

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Socio-Demographic And Behavioral Factors Associated With Hiv Testing And Hiv Seropositivity Among Women And Children In Sub-Saharan Africa: A Population-Based Multilevel Analysis, Zelalem T. Haile Jan 2014

Socio-Demographic And Behavioral Factors Associated With Hiv Testing And Hiv Seropositivity Among Women And Children In Sub-Saharan Africa: A Population-Based Multilevel Analysis, Zelalem T. Haile

Graduate Theses, Dissertations, and Problem Reports (ETD)

Introduction: In sub-Saharan Africa, HIV/AIDS is one of the leading causes of mortality that disproportionately affects women and children. In this sub-region, 57% of those living with HIV are women and is home for 90% of children under the age of 15 that are living with HIV. This study examined socio-demographic and behavioral factors associated with HIV testing and HIV seropositivity among women and children using nationally representative data.;Methods: The study employed a cross-sectional study design using data from Demographic and Health Survey and AIDS Indicator Survey, conducted between the years 2006 and 2012 from 25 countries in sub-Saharan Africa. …

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Hygrothermal Analysis And Failure Analysis Of Composite Beams Under Moving Loads, Moiz Hanif Jan 2014

Hygrothermal Analysis And Failure Analysis Of Composite Beams Under Moving Loads, Moiz Hanif

Graduate Theses, Dissertations, and Problem Reports (ETD)

Excellent combination of high structural stiffness and low weight are the qualities of composite material leading to the extensive work on such materials. In order to achieve the desired performance requirements, the designer has to take into consideration the structural requirements and the functional characteristics. Thus, in this study, the effect of hygrothermal conditions on fiber reinforced composite laminates with moving loads have been extensively studied and has been carried out that accompanies Classical Laminate Plate Theory (CLPT) as well as First Order Shear Deformation Theory (FSDT) on MATLAB. A glass/epoxy composite system has been chosen for study with which …

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Choice Between Reinforcers With And Without Delayed Shock, Aaron D. Dumas Jan 2014

Choice Between Reinforcers With And Without Delayed Shock, Aaron D. Dumas

Graduate Theses, Dissertations, and Problem Reports (ETD)

Some problematic human behaviors can be conceptualized as choice of a large immediate reinforcer followed by a delayed aversive event, in lieu of a small immediate reinforcer and no delayed aversive event. For example, a night of binge drinking may result in ample social reinforcers and other fun in the short-term, but it is followed the next day by an intense hangover. Alternatively, opting for moderate alcohol consumption might not produce as intensely pleasing of an evening, but it avoids the aversive hangover. The aim of the present experiment was to develop an animal laboratory model for studying such choice …

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A Study In Didactics, Jordan Cormier Jan 2014

A Study In Didactics, Jordan Cormier

LSU Master's Theses

When Sir Arthur Conan Doyle ended The Final Problem with Sherlock Holmes’ apparent death there was a mass outcry of protest from his fans to the point that myths still circulate about how young Victorian men wore black armbands in mourning. There was a reason why the Holmes stories had such a mass appeal: Sherlock Holmes, brilliant, asexual, emotionally reserved and eminently rational detective that he was, was in many ways the archetype of the ideal Victorian man. As such he struck a very deep chord with British society at the time, the extent of which his creator never quite …

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The Effects Of Modeling Instruction In A High School Physics Classroom, Mark E. Arseneault Jan 2014

The Effects Of Modeling Instruction In A High School Physics Classroom, Mark E. Arseneault

LSU Master's Theses

The purpose of this research was to study my effectiveness as a high school physics teacher using a traditional approach to instruction compared to a Modeling approach. The study was conducted at a high school near Baton Rouge, Louisiana. Both groups consisted of 1 section of honors physics and 1 section of regular physics each. Conceptual understanding and problems solving gains were measured using pre/post Force Concept Inventory (FCI) and the Mechanics Baseline Test (MBT) results, respectively. Students’ level of science reasoning was also measured at the beginning of the school year only, using the Classroom Test of Scientific Reasoning …

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Change In Developmental Quotient In Toddlers Assessed For Autism Spectrum Disorder, Lindsey Willis Williams Jan 2014

Change In Developmental Quotient In Toddlers Assessed For Autism Spectrum Disorder, Lindsey Willis Williams

LSU Master's Theses

ASD is marked by significant delays in social and language development, while development in other areas, such as cognitive functioning, can be highly variable from person to person. Though preschool-aged children with ASD often exhibit a profile of developmental delays similar to children with other developmental disorders at a discrete moment in time, few studies have investigated possible differences in rate of skill acquisition in developmental domains in children with different disorders. Sensitive periods of development are marked by less stability in performance of developmental skills. Results of prior studies suggest that if appropriate early interventions are applied during sensitive …

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Leadership Bias: The Case Of The Cherokee Freedmen, Kristi Barnett Williams Jan 2014

Leadership Bias: The Case Of The Cherokee Freedmen, Kristi Barnett Williams

LSU Master's Theses

Journalists inform residents living on or near Native American reservations about key policy issues. Since most tribal councils own and operate their news outlets, retaliation towards journalists working for the tribe is a real concern if the leadership does not appreciate the message. In response to the threat of retaliation, some tribes, like the Cherokee Nation, have legal protections for journalists. The Cherokee Nation’s newspaper, the Cherokee Phoenix, operates under the guidelines of the Cherokee Independent Press Act (CIPA) originally passed in 2000 and amended in 2009. CIPA was the first of its kind in Indian Country. This thesis analyzes …

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Education Ain't Black: The Disidentification Of African American Students, Erica Lynette James Jan 2014

Education Ain't Black: The Disidentification Of African American Students, Erica Lynette James

LSU Master's Theses

In this thesis, I will discuss the influence of education on the identity formation of African American students. Based on the scholarly literature in education theory, I will argue in Bourdieuan theory education, formal education, fails to accommodate the specific needs of African American students because education influences African American students to develop constructions of “whiteness" that education reinforces. As education attempts to uphold the “status quo” of American society, education simultaneously forces African American students to question the relevance of education. In questioning the relevance of education through high-achieving African American students’ use of language and pursuit of academic …

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The Effects Of A Test-Taking Skills Intervention On Test Anxiety And Test Performance In 4th Graders, Meredith T. Harris Jan 2014

The Effects Of A Test-Taking Skills Intervention On Test Anxiety And Test Performance In 4th Graders, Meredith T. Harris

LSU Master's Theses

Increases in standardized testing have been accompanied by increased reports of test anxiety in younger students. School-based test anxiety interventions can be implemented to decrease test anxiety and improve test performance. Skill-based interventions have effectively addressed both of these variables; however, the research has primarily targeted secondary and university students. The purpose of the current study was to determine if a test-taking skills intervention would decrease test anxiety and improve test performance in 4th grade students. Results indicated that the test-taking skills intervention resulted only in a minor decrease in test anxiety that maintained at 1-month follow-up. Effects on test …

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Direct Marketing Of Louisiana Shrimp: A Cost-Earnings Analysis, Jill Christoferson Jan 2014

Direct Marketing Of Louisiana Shrimp: A Cost-Earnings Analysis, Jill Christoferson

LSU Master's Theses

Secondary data on cost and earnings from a 2012 survey of inshore Louisiana shrimpers was used as the foundation this partial budget analysis examining the feasibility of supplementing direct marketing (DM) strategies for Louisianan shrimp harvesters. Refinement of key variables for the analysis was conducted using supplemental surveys in 2014 of DM shrimp harvesters and DM consumers. The DM harvester survey (n= 72) produced information on actual price per pound for DM shrimp, as well as catch grade distribution, product marketing mix, and labor estimates. The DM consumer survey (n=255) yielded information on participants’ preferences for DM shrimp, including actual …

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Journalism And The "Dark Arts" - A Comparative Study Of British And American Media Ethic Codes Against The Backdrop Of The British Phone Hacking Scandal, Paromita Saha Jan 2014

Journalism And The "Dark Arts" - A Comparative Study Of British And American Media Ethic Codes Against The Backdrop Of The British Phone Hacking Scandal, Paromita Saha

LSU Master's Theses

The British phone hacking scandal in 2011 raised questions about the influence of powerful media conglemorates, most notably, Rupert Murdoch’s News Corporation, on the culture of the media and democracy on both sides of the Atlantic. Both American and British media are the world’s leading examples of a free market press built on the same ideological foundations. This study argues that the phone hacking scandal calls for a revised and nunanced look at the differences and similarities between the American and British media systems. This comparative analysis uses British and American news media ethic codes as an unit of analysis. …

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I'Ay Recours A Vous: An Historical And Discursive Analysis Of The Lettres Circulaires Des Décédées Of The Ursuline Order In Old And New France During The Louisiana French Colonial Period, Jarrette K. Allen Jan 2014

I'Ay Recours A Vous: An Historical And Discursive Analysis Of The Lettres Circulaires Des Décédées Of The Ursuline Order In Old And New France During The Louisiana French Colonial Period, Jarrette K. Allen

LSU Master's Theses

The Ursulines of New Orleans have been serving their beloved community now for just short of 300 years, ever since they arrived from France in 1727. They brought with them long-standing traditions and values from the Old World and innovated in many ways to adapt to the New. One of these traditions was the sending of circular letters that served as eulogies for their deceased sisters. They maintained this tradition in New Orleans but also developed a unique style, creating a livre des décédées (or “book of the dead”) that contains the biographies of the sisters and memorializes them for …

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Transient Studies Of A Sodium Sulfur Cell, Sarah Caprio Jan 2014

Transient Studies Of A Sodium Sulfur Cell, Sarah Caprio

Graduate Theses, Dissertations, and Problem Reports (ETD)

Modern grids will include input from fossil-fueled power generation facilities as well as renewable energy sources, and these are expected to work together actively. One major problem with this integrated power production is that most renewable energy sources are intermittent and variable, and thus introduce a very challenging situation with regard to grid stability and reliability. Also, fossil-fueled power generation facilities have load cycles based on expected usage. A non-reliable power source cannot feasibly be used to supply the grid with proper amounts of energy needed in peak times. A solution to this dilemma is power storage. The sodium-sulfur battery …

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Effect Of Sugarcane Residue Management On Soil Organic Carbon In A Louisiana Agricultural System: Implications For Carbon Sequestration, April Newman Jan 2014

Effect Of Sugarcane Residue Management On Soil Organic Carbon In A Louisiana Agricultural System: Implications For Carbon Sequestration, April Newman

LSU Master's Theses

The soil organic carbon (SOC) pool is an important component of the global carbon budget. Agricultural systems in particular have been identified as an area in which SOC may be increased appreciably when managed for carbon sequestration. In the southern climate region of the United States, potential rates of carbon sequestration in soils are largely unquantified. The aim of this study was to quantify SOC and its spatial variability under two long-term residue management systems, burn and no-burn, for sugarcane (Saccharum Spp. Hyb.). Soil cores to a depth of 1 m were collected using a Giddings probe. Thirty soil cores …

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