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2014

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Based On Teacher Perceptions, Would The Use Of Social Media Via Mobile Devices In Grades 9-12 Classrooms Increase Student Engagement In Learning Activities?, Rodney J. Johnson Jan 2014

Based On Teacher Perceptions, Would The Use Of Social Media Via Mobile Devices In Grades 9-12 Classrooms Increase Student Engagement In Learning Activities?, Rodney J. Johnson

LSU Doctoral Dissertations

This research study addressed teachers’ perceptions of the use of social networking via mobile devices and the impact that social media accessed via mobile devices has on the learning engagement of students in grades 9-12 in select Louisiana high schools, in a rural southern parish of the United States (Gibbs, 2012). The study examined teachers’ perceptions of whether or not the use of social media improved students’ engagement in learning activities. Some researchers assert that the use of social media and smart cell phones is both the current and future mode of communication and that educators would do well to …

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Applications Of Cfd Simulations On Studying The Multiphase Flow In Microfluidic Devices, Yuehao Li Jan 2014

Applications Of Cfd Simulations On Studying The Multiphase Flow In Microfluidic Devices, Yuehao Li

LSU Doctoral Dissertations

Microfluidics has been extensively investigated as a unique platform to synthesize nanoparticles with desired properties, e.g., size and morphology. Compared to the conventional batch reactors, wet-chemical synthesis using continuous flow microfluidics provides better control over addition of reagents, heat and mass transfer, and reproducibility. Recently, millifluidics has emerged as an alternative since it offers similar control as microfluidics. With its dimensions scaled up to millimeter size, millifluidics saves fabrication efforts and potentially paves the way for industrial applications. Good designs and manipulations of microfluidic and millifluidic devices rely on solid understanding of fluid dynamics. Fluid flow plays an important role …

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Web-Based Computational Tools For Studying Plant Biodiversity, Timothy Mark Jones Jan 2014

Web-Based Computational Tools For Studying Plant Biodiversity, Timothy Mark Jones

LSU Doctoral Dissertations

Large scale plant biodiversity bioinformatics projects are now making taxonomic datasets available at a frenetic pace via the World Wide Web (WWW). While these new resources provide the fundamental textual and visual backbone of expert level knowledge, their information structure often impedes the development of derivative works for identification. But when this information is rearranged from a traditional format, questions can be asked of the data that were previously thought to be unanswerable. The difficulty in transforming this ‘big-data’ is manifold: how to deliver it rapidly to researchers across the world while providing visualizations of data that encompass these large …

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New Approaches To Smart Grid Security With Scada Systems, Bixiang Tang Jan 2014

New Approaches To Smart Grid Security With Scada Systems, Bixiang Tang

LSU Doctoral Dissertations

The use of information technology in electric power grid introduces the vulnerability problem looming the future smart grid. The supervisory control and data acquisition (SCADA)is the first defense, which itself is undermined by potential malicious attacks. This dissertation studies two particular security threats facing the smart grid and SCADA systems: the unobservable attack and the replay attack. The former is well known in fault detection of the power grid and has received renewed interest in the past a few years, while the latter is motivated by the Stuxnet worm allegedly used against the nuclear facilities in Iran. For unobservable attacks, …

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A Performance Guide To "Five Musings On The Past" By Elisenda Fábregas For Soprano And Piano, Megan Elizabeth Barrera Jan 2014

A Performance Guide To "Five Musings On The Past" By Elisenda Fábregas For Soprano And Piano, Megan Elizabeth Barrera

LSU Doctoral Dissertations

This document is a performance guide to Elisenda Fábregas’ "Five Musings on the Past" for soprano and piano. Fábregas is a celebrated Catalan-American composer and concert pianist. Highly influenced by the Spanish tonalities and rhythms of flamenco, she has written compositions for piano, woodwinds, strings, guitar, choral, orchestra, symphonic band, and solo voice. Chapter one discusses the life and compositional style of Fábregas. Chapter two lists the premieres and influential poets behind Fábregas’ solo vocal works. Chapter three discusses Fábregas’ musical settings of her original Spanish poetry in Five Musings on the Past. Musical examples for each song are presented …

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Rearing Children In Love And Righteousness: Latitude, Limits, And Love, Craig H. Hart Jan 2014

Rearing Children In Love And Righteousness: Latitude, Limits, And Love, Craig H. Hart

Faculty Publications

The First Presidency (1999) counsels parents to “devote their best efforts to the teaching and rearing of their children in gospel principles which will keep them close to the Church,” and further states that “no other instrumentality can take [the home’s] place or fulfill its essential functions in carrying forward this God-given responsibility.” The proclamation on the family supports parents in magnifying their divinely designed responsibilities in the Father’s great plan of happiness (see Alma 42:8) by specifically identifying the principles that ultimately will make the most difference in their efforts.

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Prevalence Of Campylobacter Jejuni In Small-Scale Broiler Operations And The Effects Of Sulfadimethoxine Administered To Control C. Jejuni Infection In Broilers, Wannee Tangkham Jan 2014

Prevalence Of Campylobacter Jejuni In Small-Scale Broiler Operations And The Effects Of Sulfadimethoxine Administered To Control C. Jejuni Infection In Broilers, Wannee Tangkham

LSU Doctoral Dissertations

Campylobacter spp. particularly C. jejuni has been recognized as one of the most prevalent causes of foodborne bacterial illnesses in humans. Most previous studies have focused on the transmission routes of C. jejuni from commercial flock farms to the final retail product. To date, no in vivo studies have addressed the efficacy of sulfadimethoxine in the control of C. jejuni in poultry. This dissertation research proceeds along two lines of investigation. The objectives of the first line of investigation are to determine the enumeration of Campylobacter spp. and the prevalence on both Campylobacter spp. and C. jejuni on live egg …

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The Nature Of Teacher Engagement At An Online High School, Jered Borup, Charles R. Graham, Jeffrey S. Drysdale Jan 2014

The Nature Of Teacher Engagement At An Online High School, Jered Borup, Charles R. Graham, Jeffrey S. Drysdale

Faculty Publications

Little research has examined the critical components of successful K-12 online schools, due in part to the theoretical focus of current frameworks on higher education rather than characteristics of K-12 online learners and environments. Using K-12 online research, this paper examined teaching presence as explained by the Community of Inquiry framework and identified additional teacher roles that needed stronger emphasis. We termed the new construct teacher engagement. Teacher engagement was shown to be helpful in describing and identifying effective teacher practices at the Open High School of Utah (OHSU), a successful online charter school. Through a series of 22 interviews …

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Tomographic Imaging Of Combustion Zones Using Tunable Diode Laser Absorption Spectroscopy (Tdlas), Avishek Guha Jan 2014

Tomographic Imaging Of Combustion Zones Using Tunable Diode Laser Absorption Spectroscopy (Tdlas), Avishek Guha

LSU Doctoral Dissertations

This work concentrates on enabling the usage of a specific variant of tunable diode laser absorption spectroscopy (abbr. TDLAS) for tomogaphically reconstructing spatially varying temperature and concentrations of gases with as few reconstruction artifacts as possible. The specific variant of TDLAS used here is known as wavelength modulation with second harmonic detection (abbr. WMS-2f) which uses the wavelength dependent absorbance information of two different spectroscopic transitions to determine temperature and concentration values. Traditionally, WMS-2f has generally been applied to domains where temperature although unknown, was spatially largely invariant while concentration was constant and known to a reasonable approximation (_x0006_+/- 10% …

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Avis De Recherche : Valentine Penrose, Œuvre Et Vie D'Une Artiste Surréaliste, Séverine Aline Orban Jan 2014

Avis De Recherche : Valentine Penrose, Œuvre Et Vie D'Une Artiste Surréaliste, Séverine Aline Orban

LSU Doctoral Dissertations

"Avis de Recherche: Valentine Penrose, vie et œuvre d’une artiste surréaliste" presents a new appreciation of the work of French artist, poet and novelist Valentine Penrose associated with the Surrealist Movement. This research offers the first detailed and accurate version of Valentine Penrose’s biography, which shows her relationship with artists and writers of her time, and her engagement during the Spanish Civil War and WWII. It compiles and publishes for the first time all her unpublished and ‘forgotten’ works with accompanying analyses for each piece. It demonstrates through the recording of her life and the exploration of her poetry how …

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A Forgotten Composer And His Music: Two Viola Compositions By Arends, Monica Pamela Rodriguez De La Hoz Jan 2014

A Forgotten Composer And His Music: Two Viola Compositions By Arends, Monica Pamela Rodriguez De La Hoz

LSU Doctoral Dissertations

The purpose of this document is to explore the viola music of the unknown Russian multi-talented musician Andrei Fedorovich Arends, in his two compositions written for that instrument: the Ballade for viola and piano, Op. 4 (1885) and the Concertino for viola and orchestra, Op. 7 (1886). The first section of the document provides an essential biography of the composer and information about his artistic highlights. The second section is devoted to a formal and stylistic analysis of the Ballade and the Concertino and their musical influences. The final section provides a performance guide to the Concertino, including the author’s …

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Diocletian’S Victory Column And The Rhetoric Of Spectacular Disruption, Richard Benjamin Crosby Jan 2014

Diocletian’S Victory Column And The Rhetoric Of Spectacular Disruption, Richard Benjamin Crosby

Faculty Publications

This essay explores how the powerful system of cultural references in the architecture of Alexandria is disrupted by Roman visual rhetoric. Specifically, the essay closely analyzes Diocletian’s Victory Column, a monument to the third-century Roman ruler who put down an Alexandrian uprising. The authors argue that Rome employed a visual rhetoric of spectacular disruption as a means to insert itself into the city’s historical identity even after its siege created widespread disease and starvation. The essay builds on the substantial scholarship on public memory by describing a kind of rhetoric that poses a political, existential challenge to a reigning cultural …

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Performance Of Active Vibration Isolation In The Advanced Ligo Detectors, Ryan Thomas Derosa Jan 2014

Performance Of Active Vibration Isolation In The Advanced Ligo Detectors, Ryan Thomas Derosa

LSU Doctoral Dissertations

The second generation of LIGO detectors has finished construction and the commissioning effort is pushing the instruments towards their designed sensitivity. Around the world similar undertakings are underway, and soon a global network capable of astrophysical observation will be operational. The first sentences are being written in an important chapter of terrestrial gravitational wave detection, an entire century after the theoretical foundations of general relativity were laid, and after decades of calculation, design, proposals, plans, and laboratory work. In order to make sensitive measurements, the detector must be well isolated from the vibrations of the ground, and much of this …

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Parallel Processes In Hpx: Designing An Infrastructure For Adaptive Resource Management, Vinay Chandra Amatya Jan 2014

Parallel Processes In Hpx: Designing An Infrastructure For Adaptive Resource Management, Vinay Chandra Amatya

LSU Doctoral Dissertations

Advancement in cutting edge technologies have enabled better energy efficiency as well as scaling computational power for the latest High Performance Computing(HPC) systems. However, complexity, due to hybrid architectures as well as emerging classes of applications, have shown poor computational scalability using conventional execution models. Thus alternative means of computation, that addresses the bottlenecks in computation, is warranted. More precisely, dynamic adaptive resource management feature, both from systems as well as application's perspective, is essential for better computational scalability and efficiency. This research presents and expands the notion of Parallel Processes as a placeholder for procedure definitions, targeted at one …

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Peer Bullying Of Academically Oriented Students: Gender, Race, Ethnicity, And School Context, Brett Lehman Jan 2014

Peer Bullying Of Academically Oriented Students: Gender, Race, Ethnicity, And School Context, Brett Lehman

LSU Doctoral Dissertations

This dissertation reports on several quantitative analyses of bullying victimization among U.S. high school students. The methods employed are secondary analysis of survey data originally collected by the National Center of Education Statistics through the Educational Longitudinal Study. The data analyzed are a nationally representative sample of U.S. high school sophomores from the year 2002. This report contains six chapters. Chapter 1 introduces public and scholarly interests on bullying victimization with a specific focus on approaching bullying from a sociological viewpoint. Chapter 2 reviews scholarly research that motivates each analysis in the report. Chapter 3 presents an analysis which is …

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Production Of 2-Propanol, Butanol And Ethanol Using Clostridium Beijerinckii Optonii, Adam Hoogewind Jan 2014

Production Of 2-Propanol, Butanol And Ethanol Using Clostridium Beijerinckii Optonii, Adam Hoogewind

LSU Doctoral Dissertations

With an unpredictable market for gasoline and increased concerns with the pollution created by burning fossil fuels, there is a push for developing suitable replacements for gasoline. While corn-based ethanol production is the most common renewable biofuel produced in the United States, ethanol is not an ideal solution to gasoline replacement due to low energy density, hygroscopic and corrosive properties and inability to purify by distillation alone. Higher alcohols such as butanol do not have the same problems with energy density, purification and hygroscopic and corrosive properties. The fermentation of butanol by using solventogenic Clostridium species, creating acetone, butanol and …

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Is Logarithmic Transformation Necessary In Allometry? Ten, One-Hundred, One-Thousand-Times Yes, Joseph Mascaro, Creighton M. Litton, R. Flint Hughes, Amanda Uowolo, Stefan A. Schnitzer Jan 2014

Is Logarithmic Transformation Necessary In Allometry? Ten, One-Hundred, One-Thousand-Times Yes, Joseph Mascaro, Creighton M. Litton, R. Flint Hughes, Amanda Uowolo, Stefan A. Schnitzer

Biological Sciences Faculty Research and Publications

No abstract provided.

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Analysis Of Media Coverage Of Selected Food Safety Events On The Demand For The Recalled Products, Abhishek Bhagwat Bharad Jan 2014

Analysis Of Media Coverage Of Selected Food Safety Events On The Demand For The Recalled Products, Abhishek Bhagwat Bharad

LSU Doctoral Dissertations

The major focus of this study was to identify the linkage between information and consumer behavior and to examine the role that a new media index played in the identifying the tone of news stories. Past studies have relied on using the number of media stories but, this study tests a new approach, i.e., in order to analyze the effect of information by incorporating the sentiment indices. These indices were created based on the tone of the news story. The results from sentiment indices were compared to the results from the information index. Barten’s Synthetic model (BSM) was used to …

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How Does The Presence Of A Special Education Teacher Impact Co-Teachers’ Behavior In An Inclusive Classroom, Ryan O. Kellems Ph.D. Jan 2014

How Does The Presence Of A Special Education Teacher Impact Co-Teachers’ Behavior In An Inclusive Classroom, Ryan O. Kellems Ph.D.

Faculty Publications

The majority of studies regarding co-teaching have primarily looked at what specific instructional practices and teacher characteristics are needed to make co-teaching an effective practice. In contrast, this study investigates how co-teaching affects a teacher’s particular teaching style and behavior. Of greatest interest is how a teacher’s use of instructional technology is impacted by the presence of a co-teacher. With many schools making inclusion a priority, the number of co-taught classes is increasing. In order for students to gain the most from classes that are co-taught, it is important that we first understand the factors that affect co-teachers. Once we …

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Short Selling Around Restatement Announcements: When Do Bears Pounce?, Michael S. Drake, Linda A. Myers, Susan Scholz, Nathan Y. Sharp Jan 2014

Short Selling Around Restatement Announcements: When Do Bears Pounce?, Michael S. Drake, Linda A. Myers, Susan Scholz, Nathan Y. Sharp

Faculty Publications

This paper draws on two distinct literatures – one that investigates the impact of accounting restatements and another that investigates the trading behavior of short sellers – to further our understanding of how sophisticated investors process and respond to news about accounting corrections. We examine short-seller behavior in the days surrounding restatement announcements to determine when short sellers identify restatements and how they trade on restatement news. Our findings suggest that short sellers do not appear to anticipate restatement announcement dates, but we find that abnormal short selling is significantly higher than is typical when restatements are announced, especially for …

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The Media And Mispricing: The Role Of The Business Press In The Pricing Of Accounting Information, Michael S. Drake, Nicholas M. Guest, Brady J. Twedt Jan 2014

The Media And Mispricing: The Role Of The Business Press In The Pricing Of Accounting Information, Michael S. Drake, Nicholas M. Guest, Brady J. Twedt

Faculty Publications

This study investigates the role of the business press in the pricing of accounting information. Using a comprehensive dataset of more than 111,000 earnings-related business press articles published from 2000–2010, we find that press coverage of the annual earnings announcement mitigates cash flow mispricing, but has a negligible effect on accrual mispricing. We provide evidence that this impact is driven primarily by the press disseminating the information more broadly, rather than by the creation of new content that helps investors understand the implications of accounting information. Our results suggest that the business press plays an important role in facilitating the …

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Association Of Lean Implementation On Perceived Organizational Maturity Levels Of Managers And Staff In The Public Sector, Patrick Eduardo O'Mara Jan 2014

Association Of Lean Implementation On Perceived Organizational Maturity Levels Of Managers And Staff In The Public Sector, Patrick Eduardo O'Mara

LSU Master's Theses

Extensive research has shown the impact of Lean implementation at the process level of an organization to increase quality, reduce cycle time, and reduce operational costs. However, little research has been done to associate Lean with improvement at the strategic level of an organization. The objectives of the present research were to (a) study the association of Lean implementation with maturity levels of employees (b) study the relationship between Lean implementation in the levels of agreement with cohesion between managers and staff in evaluating perceived current state and desired state of organizational practices (c) identify potential barriers of Lean implementation …

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Damage Evolution In Pressurized Domain: A Gradient Based Variational Approach, Navid Mozaffari Jan 2014

Damage Evolution In Pressurized Domain: A Gradient Based Variational Approach, Navid Mozaffari

LSU Master's Theses

Construction of appropriate models through mathematical analysis for materials in order to find their main properties and ingredients and enhance the numerical simulations to predict their behavior under specific conditions is in interest even in mathematics departments rather than material science and engineering branches. Among these models, gradient damage models have reached to the specific stage because of their ability to bring the effects of micro cracks propagation into conventional continuum mechanics formulation and approximate brittle fracture as one of the most phenomena in the area of material behavior simulation. This thesis includes the application and extension of a previously …

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Experimental Evaluation Of Non-Composite Shallow Press-Brake-Formed Steel Tub Girders, Lindsay T. Kelly Jan 2014

Experimental Evaluation Of Non-Composite Shallow Press-Brake-Formed Steel Tub Girders, Lindsay T. Kelly

Graduate Theses, Dissertations, and Problem Reports (ETD)

The Short Span Steel Bridge Alliance (SSSBA) is a group of bridge industry leaders (including steel manufacturers, fabricators, service centers, coaters, researchers, and representatives of related associations and government organizations) who have joined together to provide educational information on the design and construction of short-span steel bridges in installations up to 140 feet in length (Michaelson, 2014). From within the SSSBA technical working group, a shallow press-brake-formed steel tub girder was developed. This new technology consists of cold-bending standard mill plate width and thicknesses to form a trapezoidal box girder. By eliminating the need to cut and weld plates together, …

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Evaluating The Effects Of Dialect On Kindergartners' Use Of Three Grammatical Structures In Narratives, Andromeda Patrice Love Jan 2014

Evaluating The Effects Of Dialect On Kindergartners' Use Of Three Grammatical Structures In Narratives, Andromeda Patrice Love

LSU Master's Theses

The aim of this study was to determine if dialect status has an effect on the frequency at which kindergarteners produce nonmainstream English markings for regular third person, IS and ARE, and regular past tense when producing oral narratives. Specifically, I wished to determine if child speakers of African American English (AAE) and child speakers of Southern White English (SWE) mark these structures with nonmainstream English forms at different rates. The narrative data came from language samples that had been previously collected from twenty kindergarten speakers of AAE and twenty kindergarten speakers of SWE. All of the children were recruited …

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Evidence Of Methane Cycling Beneath The Western Margin Of The Greenland Ice Sheet, Erik L. J. E. Broemsen Jan 2014

Evidence Of Methane Cycling Beneath The Western Margin Of The Greenland Ice Sheet, Erik L. J. E. Broemsen

LSU Master's Theses

The greenhouse gas methane mainly regulated by microbial processes. Methanogenic archaea, a major biological source of methane, are a diverse group of organisms that produce methane as a metabolic byproduct. The generation of methane takes place in diverse anoxic environments using CO2 and other reduced substrates. The release of methane into oxic environments often is regulated by methanotrophic Proteobacteria and Archaea, specialized groups of bacteria that use methane as sole sources of carbon and energy. These organisms can play major roles in the regulation of methane transport into the atmosphere and make up one part of the methane cycle. Pools …

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Power System Differential Model With Application To Grid Dynamic Simulation, Boyu Wang Jan 2014

Power System Differential Model With Application To Grid Dynamic Simulation, Boyu Wang

LSU Master's Theses

Nonlinearity of power system is always one of the difficulties when dealing with dynamic simulation of power systems. Solving differential-algebraic equations representing power systems are difficult without losing nonlinearity, especially for large power systems. This thesis shows an alternative method to solve nonlinear dynamical power system by producing a purely differential representation of the power systems. This new representation converts the algebraic equations to differential equations in order to have an absolute differential system. By using Runge-Kutta algorithm to solve this differential system, the results of the power system simulations are compared to trapezoidal integration algorithm commonly used to solve …

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Dissolved Oxygen Dynamics And Modeling - A Case Study In A Subtropical Shallow Lake, Zhen Xu Jan 2014

Dissolved Oxygen Dynamics And Modeling - A Case Study In A Subtropical Shallow Lake, Zhen Xu

LSU Master's Theses

As one of the most valued and treasured natural resources, today many lakes in the world face degradation of their water quality due to nutrient enrichment, toxic contamination, and hydrological modification from their drainage areas. Among various water quality impairments, dissolved oxygen (DO) depletion is often a leading stressor in lake systems. Despite numerous studies on DO in deep water lakes in temperate regions, the knowledge of DO dynamics in eutrophic shallow lakes in subtropical regions is still limited. This thesis research conducted intensive DO monitoring in an eutrophic shallow lake in south Louisiana to characterize diel cycles of DO …

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Tuning The Thermoelectric Performance Of Complex Oxides Through Multiscale Microstructure Engineering, Paulo Sergio Calvillo-Gonzalez Jan 2014

Tuning The Thermoelectric Performance Of Complex Oxides Through Multiscale Microstructure Engineering, Paulo Sergio Calvillo-Gonzalez

Graduate Theses, Dissertations, and Problem Reports (ETD)

The need for energy nowadays is causing a heated debate in our society. One way to increase the energy sustainability is to harvest waste energy from current processes. For example, industrial processes, home heating and automotive exhaust, all generate copious amounts of heat that is usually wasted. In the diesel powered automobiles, up to 65% of the chemical fuel is lost as waste heat that is mostly rejected through the cooling radiator and exhaust systems with the temperature normally exceeding 600 °C. Thermoelectric materials have the ability of converting wasted heat and temperature difference into electricity. Thermoelectric materials need to …

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Recruiting, Engaging, And Retaining Low Income Parents In Community Parenting Programs: A Phenomenological Study, Jane Elyce Fuqua Glasgow Jan 2014

Recruiting, Engaging, And Retaining Low Income Parents In Community Parenting Programs: A Phenomenological Study, Jane Elyce Fuqua Glasgow

Theses and Dissertations in Early Childhood Education

This study examined factors that impact recruitment, engagement, and retention of low-income parents in community parenting programs. Using a traditional qualitative phenomenological approach, this research sought to develop an understanding of the difficulties that program providers often encounter in engaging low-income parents. Participants included program stakeholders (providers, policy-makers, and funders) and low-income parents with children under the age of five from urban areas. A series of focus groups were held in order to capture the voices and develop a textural description of the lived experiences of participants. Results revealed that a combination of factors impact engagement, including the important role …

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