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2013

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The Roles Of Deinococcus Radiodurans Dps-1 And Dps-2 In Nucleoid Organization And In Survival During Oxidative Stress, Khoa Huynh Nguyen Jan 2013

The Roles Of Deinococcus Radiodurans Dps-1 And Dps-2 In Nucleoid Organization And In Survival During Oxidative Stress, Khoa Huynh Nguyen

LSU Doctoral Dissertations

DNA protection during starvation (Dps) proteins are important for bacterial oxidative stress responses. This study aims to understand the roles and characteristics of the two Dps homologs in Deinococcus radiodurans: Dps-1 and Dps-2. Dps-2 contains a predicted signal peptide and in vivo localization of Dps-2 reveals that its location is non-cytoplasmic. β-galactosidase assays show that the Dps-2 promoter is upregulated in the presence of H2O2 and the results from the DNA protection assay show that Dps-2 is able to protect DNA efficiently against reactive oxygen species (ROS). Dps-2 has a C-terminal extension that is needed for assembly into a dodecamer …

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An Examination Of Middle School Band Students' Ability To Match Pitch Following Short-Term Vocal Technique Training, Abby Bush Lyons Jan 2013

An Examination Of Middle School Band Students' Ability To Match Pitch Following Short-Term Vocal Technique Training, Abby Bush Lyons

LSU Master's Theses

The purpose of this study was to examine middle school band students’ ability to sing and play their instruments in tune following short-term vocal technique instruction. In a posttest-only design, individual participants listened to three-note stepwise sequences produced digitally and performed them in three ways—sung on the syllable /Zu/, sung on /Zi/, and played on the instrument. Performances were recorded and analyzed for cent deviation from equal-tempered tuning (reference A=440). Results showed a significant 3-way interaction among pitch direction, performance condition, and pitch, with the most inaccurate playing happening after the first time participants sang the pitch sequence. Singing accuracy, …

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The Art Of Making Law Library Videos, L. Cindy Dabney Jan 2013

The Art Of Making Law Library Videos, L. Cindy Dabney

Articles by Maurer Faculty

This article explores the process of creating marketing and instructional videos for law libraries.

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Automated Semantic Content Extraction From Images, Mahdi Arab Khazaeli Jan 2013

Automated Semantic Content Extraction From Images, Mahdi Arab Khazaeli

LSU Doctoral Dissertations

In this study, an automatic semantic segmentation and object recognition methodology is implemented which bridges the semantic gap between low level features of image content and high level conceptual meaning. Semantically understanding an image is essential in modeling autonomous robots, targeting customers in marketing or reverse engineering of building information modeling in the construction industry. To achieve an understanding of a room from a single image we proposed a new object recognition framework which has four major components: segmentation, scene detection, conceptual cueing and object recognition. The new segmentation methodology developed in this research extends Felzenswalb's cost function to include …

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Evaluating The Effectiveness Of Response To Intervention In Ela And Math For Sixth, Seventh, And Eighth Grade Students, Shehla Khan Jan 2013

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 …

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The Effects Of The Peer Instruction Technique Think-Pair-Share On Students' Performance In Chemistry, Kathleen Sipos Trent Jan 2013

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 …

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Snap Use Among Older Adults, Jennifer R. Geiger Jan 2013

Snap Use Among Older Adults, Jennifer R. Geiger

LSU Master's Theses

Older adults participate in the Supplemental Nutrition Assistance Program (SNAP) at much lower rates than the general population. Possible explanations for this disparity include stigma, lack of information, and lack of transportation. However, past research focusing on SNAP use among older adults is limited and utilizes age cohorts in their analyses that may not accurately reflect actual age differences in SNAP participation. This study explored four different models of age categorizations as they relate to SNAP participation rates among older adults over 55. Using a sample of 10,116 from the nationally representative Health and Retirement Study (HRS), the research used …

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Investigation Of The Role Of Putative Inorganic Carbon Transporters In The Carbon Dioxide Concentrating Mechanisms Of Chlamydomonas Reinhardtii, Bratati Mukherjee Jan 2013

Investigation Of The Role Of Putative Inorganic Carbon Transporters In The Carbon Dioxide Concentrating Mechanisms Of Chlamydomonas Reinhardtii, Bratati Mukherjee

LSU Doctoral Dissertations

Photosynthetic microalgae optimize the utilization of inorganic carbon by active uptake and concentration of inorganic carbon (Ci) around the carbon-fixing enzyme Rubisco. This process, mostly induced under limiting carbon conditions is called the Carbon Concentrating Mechanism or CCM. The photosynthetic green alga Chlamydomonas reinhardtii serves as an excellent model organism for the study of eukaryotic CCMs. However, unlike the prokaryotic cyanobacterial CCM, which has a well-characterized Ci uptake system, the Ci uptake and transport system of the C. reinhardtii CCM is not well understood. Since CO2 is a small neutral molecule, it is believed to be able to passively diffuse …

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Complex Formation And Regulation Of Escherichia Coli Acetyl-Coa Carboxylase, Tyler Craig Broussard Jan 2013

Complex Formation And Regulation Of Escherichia Coli Acetyl-Coa Carboxylase, Tyler Craig Broussard

LSU Doctoral Dissertations

Acetyl-CoA carboxylase is a biotin-dependent, multifunctional enzyme that catalyzes the first committed step in fatty acid synthesis. The Escherichia coli enzyme is composed of a homodimeric biotin carboxylase, biotinylated biotin carboxyl carrier protein (BCCP), and an α2β2 heterotetrameric carboxyltransferase. Catalysis by acetyl-CoA carboxylase proceeds via two half-reactions. In the first half-reaction, biotin carboxylase catalyzes the ATP-dependent carboxylation of biotin, which is covalently attached to BCCP, to form carboxybiotin. In the second half-reaction, carboxyltransferase transfers the carboxyl group from carboxybiotin to acetyl-CoA to form malonyl-CoA. All biotin-dependent carboxylases are proposed to have a two-site ping-pong mechanism where the …

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The Creative Development Of The One-Person Play, "Turkey Boys," A Production Thesis In Acting, Nicholas Andrew Hamel Jan 2013

The Creative Development Of The One-Person Play, "Turkey Boys," A Production Thesis In Acting, Nicholas Andrew Hamel

LSU Master's Theses

This thesis details the writing process and performance of the author‘s partially autobiographical one-person play, "Turkey Boys." The play presents varying points of view on events in and around the small community of Atalissa, IA where, in 2009, 21 mentally disabled men were removed from the building where most of them had been living communally for more than 30 years. The men‘s employer, Henry‘s Turkey Service, was accused of mistreating the men, paying them at a sub-minimum wage level, providing inhumane living conditions, and verbally and physically abusing them. The piece is told in a documentary theatre style from multiple …

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Vagrant Masculinity : A Process Of Masculine Self-Conceptualization In Formerly Incarcerated Black Men, Le'brian Alexander Patrick Jan 2013

Vagrant Masculinity : A Process Of Masculine Self-Conceptualization In Formerly Incarcerated Black Men, Le'brian Alexander Patrick

LSU Doctoral Dissertations

This qualitative study explores the reorientation of masculine identities of formerly incarcerated Black men. Analysis is based on 20 in-depth interviews with 17 former inmates from the Louisiana prison system. This research investigates the impact of incarceration on the construction of masculinity. I explore the processes by which formerly imprisoned African American men construct, negotiate, and experience masculinity. My findings present how the way these men define masculinity and see themselves post-incarceration is influenced by not only their prison experience, but also by the reentry programs that they are affiliated. These men’s identities have been reformulated post-incarceration and are profoundly …

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A Microfluidic Bacteria Culturing Device With Maldi Mass Spectrometry Detection, Pratap Reddy Machavaram Siva Jan 2013

A Microfluidic Bacteria Culturing Device With Maldi Mass Spectrometry Detection, Pratap Reddy Machavaram Siva

LSU Master's Theses

A novel microfluidic device was developed for bacterial cell culturing using mass spectrometry as the detector. One of the challenges in proteomics is to achieve high sensitivity in the identification of proteins in complex samples with widely varying concentrations. The main limitations for proteomic studies are relatively slow and labor-intensive steps such as cell culturing and protein digestion of small sample quantities. Microfluidics is a promising approach to increase throughput and to reduce the time-consuming steps that are necessary for proteomics. When an analytical detection method is combined with microfluidics it can overcome limitations that are important in the analysis …

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Evolution Of Multispectral Aerosol Optical Properties In A Biogenically-Influenced Urban Environment During The Cares Campaign, Madhu Gyawali, W. Patrick Arnott, Rahul A. Zaveri, C. Song, Mikhail Pekour, B. Flowers, Manvendra K. Dubey, Ari Setyan, Qi Zhang, Joseph Harworth, James Gregory Radney, Dean B. Atkinson, S. China, Claudio Mazzoleni, Kyle Gorkowski, R. Subramanian, B. Tom Jobson, Hans Moosmüller Jan 2013

Evolution Of Multispectral Aerosol Optical Properties In A Biogenically-Influenced Urban Environment During The Cares Campaign, Madhu Gyawali, W. Patrick Arnott, Rahul A. Zaveri, C. Song, Mikhail Pekour, B. Flowers, Manvendra K. Dubey, Ari Setyan, Qi Zhang, Joseph Harworth, James Gregory Radney, Dean B. Atkinson, S. China, Claudio Mazzoleni, Kyle Gorkowski, R. Subramanian, B. Tom Jobson, Hans Moosmüller

Chemistry Faculty Publications and Presentations

Ground-based aerosol measurements made in June 2010 within Sacramento urban area (site T0) and at a 40-km downwind location (site T1) in the forested Sierra Nevada foothills area are used to investigate the evolution of multispectral optical properties as the urban aerosols aged and interacted with biogenic emissions. Along with black carbon and non-refractory aerosol mass and composition observations, spectral absorption (ᵝabs), scattering (ᵝsca), and extinction (ᵝext) coefficients for wavelengths ranging from 355 to 1064nm were measured at both sites using photoacoustic (PA) instruments with integrating nephelometers and using cavity ring-down (CRD) instruments. The …

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Tops Tech Utilization: Systemic Barriers And Facilitators In Louisiana, Melissa Clare Ledoux Jan 2013

Tops Tech Utilization: Systemic Barriers And Facilitators In Louisiana, Melissa Clare Ledoux

LSU Master's Theses

TOPS Tech is a social welfare program in Louisiana that provides students with financial support to obtain the specific training that they need to get the jobs that are available in Louisiana. Since 1998, 42,918 students were eligible for the award, yet only 5,515 (12.85%) students enrolled full-time and utilized it (Louisiana Board of Regents, 2012). In order for educational leaders in Louisiana to improve participation in the TOPS Tech Program, they must first understand the barriers faced by students who want to utilize it. This study explored the potential factors contributing to the utilization (or underutilization) of TOPS Tech. …

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The Doctor And The Person, Charles Volk Jan 2013

The Doctor And The Person, Charles Volk

Quill & Scope

Physicians are inundated with information, making a life of study inevitable. But where does one draw the line? It’s difficult to justify not spending every available moment studying, as one never knows when some bit of information will save someone’s life. However, living the life of a monk is just not possible for most and personal desires to have experiences outside of medicine actually make a physician more well rounded and better able to connect with the patients in their care.

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"What Do Separate And Unequal Schools Look Like In The 21st Century? The Legacy Of State Sponsored Racial Segregation In The South", Jerel Williams Jan 2013

"What Do Separate And Unequal Schools Look Like In The 21st Century? The Legacy Of State Sponsored Racial Segregation In The South", Jerel Williams

LSU Master's Theses

The vast majority of schools that have been subject to desegregation orders are located in the South. The official levels of state sponsored segregation by southern governments made the South unique. The South was a distinctive region when it came to racial brutality and resistance to racial integration. The American South is where the battle for school integration was fought with figures like George Wallace pledging segregation forever. What impact does the history of segregation have on southern schools today in relation to racial gaps in our education system? This analysis takes a look at the impact of historic state …

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For Pappou: Loss During The Clinical Years, Christopher Meltsakos Jan 2013

For Pappou: Loss During The Clinical Years, Christopher Meltsakos

Quill & Scope

Our medical education is comprehensive in that it is a compilation of book learning, clinical skills, and life expe-riences that come together to help shape us into the best possible physicians. We sacrifice many things, whether it is our sleep, holidays, or weekends, and part of our ordeal is learning to balance our family lives with our work lives. This piece is a personal account of the author’s experience with the loss of his grandfather at the start of the third year clinical rotations.

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Book Review. Epstein, L., Et. Al., The Behavior Of Federal Judges: A Theoretical And Empirical Study Of Rational Choice, Ashley A. Ahlbrand Jan 2013

Book Review. Epstein, L., Et. Al., The Behavior Of Federal Judges: A Theoretical And Empirical Study Of Rational Choice, Ashley A. Ahlbrand

Articles by Maurer Faculty

No abstract provided.

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Catalytic Conversion Of Biomass Derived Syngas To Liquid Fuels Using Fischer-Tropsch Synthesis, Pratibha Sharma Jan 2013

Catalytic Conversion Of Biomass Derived Syngas To Liquid Fuels Using Fischer-Tropsch Synthesis, Pratibha Sharma

LSU Master's Theses

Biomass gasification and subsequent conversion to liquid hydrocarbons using Fischer-Tropsch synthesis is a promising source of energy in today’s scenario when the focus has shifted from conventional fuels to alternate sources of energy. Biomass derived syngas is different from other sources of syngas such as steam reforming of methane followed by water gas shift, in terms of H2/CO ratio. Biomass syngas is usually hydrogen deficient and contains various impurities which need to be removed prior to Fischer-Tropsch Synthesis. Syngas derived from biomass also differs significantly with the different sources of biomass, gasification process and the cleanup conditions it is subjected …

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Statistical Classification Problems In Assessment Of Teachers, Xuan Wang Jan 2013

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.

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Bayesian Inference Application To Burglary Detection, Ishan Singh Bhale Jan 2013

Bayesian Inference Application To Burglary Detection, Ishan Singh Bhale

LSU Master's Theses

Real time motion tracking is very important for video analytics. But very little research has been done in identifying the top-level plans behind the atomic activities evident in various surveillance footages [61]. Surveillance videos can contain high level plans in the form of complex activities [61]. These complex activities are usually a combination of various articulated activities like breaking windshield, digging, and non-articulated activities like walking, running. We have developed a Bayesian framework for recognizing complex activities like burglary. This framework (belief network) is based on an expectation propagation algorithm [8] for approximate Bayesian inference. We provide experimental results showing …

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The Shoulder Suspension Of Bipedal Humans And The Head Suspension Of Quadrupedal Cats : A Reconstruction Of Macroevolutionary Changes Of Complex Systems Based On Nautral Experiments, Comparative Anatomy, And Biomechanical Analyses Of Extant Organisms, Michelle L. Osborn Jan 2013

The Shoulder Suspension Of Bipedal Humans And The Head Suspension Of Quadrupedal Cats : A Reconstruction Of Macroevolutionary Changes Of Complex Systems Based On Nautral Experiments, Comparative Anatomy, And Biomechanical Analyses Of Extant Organisms, Michelle L. Osborn

LSU Doctoral Dissertations

The biological processes in macroevolutionary transformations, which result in the origin of new species and supraspecific taxa, are not directly observable in organisms with long reproductive generations and need to be extrapolated and reconstructed from physiological, anatomical, and microevolutionary processes. This dissertation reconstructs the anatomical and biomechanical changes that affected the head-neck-shoulder apparatus during the macroevolutionary transformation of a quadrupedal mammal to a bipedal one by studying two model organisms, namely the human and the cat. I hypothesize that the anatomical differences in the head-neck-shoulder apparatus of the two organisms are caused by different force regimes that act on them. …

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Electric Field Influence On The Combustion Of Fuel Droplets, Solomon Benghan Jan 2013

Electric Field Influence On The Combustion Of Fuel Droplets, Solomon Benghan

LSU Master's Theses

Improving the combustion efficiency of fuels in combustion devices has become imperative in the face of the diminishing rate of the discovery of new energy sources and an ever increasing demand for energy. While there are other ways of improving combustion efficiency, this study investigated the effect of electric field on the combustion of fuel droplets. In order to model the physics of the problem, a mass transfer evaporation model, heat transfer evaporation model and a simple burning droplet model were considered and their result compared to existing result from literature. A burning rate constant of 1.380mm2/s, 14.910mm2/s and 0.612mm2/s …

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Characterization And Verification Of A Closed Loop Wind Tunnel With A Linear Cascade And Upstream Wake Generator, Christopher Foreman Jan 2013

Characterization And Verification Of A Closed Loop Wind Tunnel With A Linear Cascade And Upstream Wake Generator, Christopher Foreman

LSU Master's Theses

A closed loop wind tunnel designed to study film cooling was completed in May 2011 along with a removable wake generating device. The test section featured a three blade, four passage linear cascade utilizing the Air Force Office of Scientific Research L1A low pressure turbine blade. The wake generator is unique because its blades are flat plates with round leading and trailing edges instead of circular rods. In this report, the test section of the wind tunnel is characterized and validated through velocity and pressure measurements in the test section. Hot-wire surveys were used to characterize the velocity and turbulence …

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Digital Image-Based Frameworks For Monitoring And Controlling Of Particulate Systems, Bing Zhang Jan 2013

Digital Image-Based Frameworks For Monitoring And Controlling Of Particulate Systems, Bing Zhang

LSU Doctoral Dissertations

Particulate processes have been widely involved in various industries and most products in the chemical industry today are manufactured as particulates. Previous research and practise illustrate that the final product quality can be influenced by particle properties such as size and shape which are related to operating conditions. Online characterization of these particles is an important step for maintaining desired product quality in particulate processes. Image-based characterization method for the purpose of monitoring and control particulate processes is very promising and attractive. The development of a digital image-based framework, in the context of this research, can be envisioned in two …

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Interrelationships Of Caregiving Characteristics, Burden Of Caregiving, Depressive Symptomology, Physical Health, Self-Care, Life Satisfaction And Social Support Of Social Workers, Katherine Riker Sternberg Jan 2013

Interrelationships Of Caregiving Characteristics, Burden Of Caregiving, Depressive Symptomology, Physical Health, Self-Care, Life Satisfaction And Social Support Of Social Workers, Katherine Riker Sternberg

LSU Master's Theses

With increasing numbers of Americans engaged in unpaid, informal caregiving for adults over the age of 18, there is a need for research that investigates caregivers’ experiences, with particular emphasis on their health and well being. This is the first known study to examine the experiences of social workers, engaged in direct practice, who are also managing responsibilities related to informal caregiving. The study examined interrelationships among social workers’ caregiving characteristics, burden of caregiving, depressive symptomology, physical health, self-care, life satisfaction and social support. Hypotheses included: (1) Burden of caregiving is positively correlated with depressive symptomology. (2) The burden of …

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An Original Composition, "...And It Was Good For Orchestra" And A New Century, A New Audience : Concert Music's Evolution Into Pop And The Music Producer As Maestro, Matthew David Evancho Jan 2013

An Original Composition, "...And It Was Good For Orchestra" And A New Century, A New Audience : Concert Music's Evolution Into Pop And The Music Producer As Maestro, Matthew David Evancho

LSU Doctoral Dissertations

The first part of this dissertation is a musical composition for full orchestra titled, ...And It Was Good. The work's title refers to the biblical text that follows each day of God's creation, "God saw all that he had made, and it was good." The architecture for the single movement work is framed within seven sections, each representing a different day of the biblical creation story. An arch form is used and each section is marked by a different tonal center taken from a whole tone scale beginning on F. The composer employs several songs from various world religions and …

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Gene Set Based Ensemble Methods For Cancer Classification, William Evans Duncan Jan 2013

Gene Set Based Ensemble Methods For Cancer Classification, William Evans Duncan

LSU Doctoral Dissertations

Diagnosis of cancer very often depends on conclusions drawn after both clinical and microscopic examinations of tissues to study the manifestation of the disease in order to place tumors in known categories. One factor which determines the categorization of cancer is the tissue from which the tumor originates. Information gathered from clinical exams may be partial or not completely predictive of a specific category of cancer. Further complicating the problem of categorizing various tumors is that the histological classification of the cancer tissue and description of its course of development may be atypical. Gene expression data gleaned from micro-array analysis …

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Utilizing Community Media To Facilitate Cross-Cultural Communication Between Lsu Agcenter Field And State Agents And Louisiana Agricultural Producers, Ava Denise Attaway Jan 2013

Utilizing Community Media To Facilitate Cross-Cultural Communication Between Lsu Agcenter Field And State Agents And Louisiana Agricultural Producers, Ava Denise Attaway

LSU Doctoral Dissertations

The primary purpose of this study was to determine how Louisiana agricultural producers get information related to their crops. Specifically, this study examined how Louisiana agricultural producers used the Louisiana State University AgCenter’s website and other media sources so that it could be determined which form of community media could be used to facilitate cross-cultural communication between LSU AgCenter field and state agents and Louisiana agricultural producers. Data for this study were obtained from 187 usable surveys completed by Louisiana agricultural produceragricultural producers. The data were analyzed to determine if producers utilized the LSU AgCenter website, the frequency they utilized …

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The Employment And Economic Advancement Of African-Americans In The Twentieth Century, Kenneth G. Dau-Schmidt, Ryland Sherman Jan 2013

The Employment And Economic Advancement Of African-Americans In The Twentieth Century, Kenneth G. Dau-Schmidt, Ryland Sherman

Articles by Maurer Faculty

In this article we examine the progress of African–Americans in the American labour market over the course of the twentieth century. We trace their progress as African-Americans moved from low-skill low-wage jobs in southern agriculture to a panoply of jobs including high-skill, high-wage jobs in industries and occupations across the country.We also document the migrations and improvements in educational achievement that have made this progress possible. We examine the progress yet to be made and especially the problems of lack of education and incarceration suffered by African–American males. Finally, we examine the importance of anti-discrimination laws and affirmative action in …

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