Digital Commons Network^™

Dietary Strategies To Influence Appetite: Effects Of Oat Beta-Glucan And Thylakoids From Spinach On Satiety And Reward-Induced Eating Behavior, Candida Joan Rebello

LSU Doctoral Dissertations

The objective of these studies was to examine the effects of oat-based cereals and a spinach extract, on eating behavior. The cereals compared included instant oatmeal (IO), old fashioned oatmeal (SO), and a ready to eat cereal (RTEC), each containing the soluble fiber beta-glucan. The spinach extract containing thylakoids, the internal photosynthetic membrane of plants, was compared with a placebo. The first study, a randomized crossover trial compared the effect of IO and SO on subjective ratings of satiety, with the RTEC. Subjects consumed isocaloric 150kcal servings of the cereals in random order. Visual analogue scale ratings evaluating satiety were …

Investigating Wave Forces On Coastal Bridge Decks, Guoji Xu

LSU Doctoral Dissertations

Tsunamis and hurricane induced waves are responsible for many coastal bridge failures, especially in the last decade. In the current study, three countermeasures (reducing the entrapped air, elevating the structures and rigidifying the structures) are considered, two wave types (solitary wave theory and Stokes wave theory) are chosen, and two bridge types (single bridge deck and twin bridge decks) are taken into account. Parametric studies are conducted based on Computational Fluid Dynamics (CFD) software ANSYS Fluent. This dissertation comprises two broad themes according to the wave types adopted. The first one is to make a great effort to investigate solitary …

Social Anxiety And Cannabis-Related Impairment: The Roles Of Anxiety Sensitivity And Intolerance Of Uncertainty, Emily Robin Jeffries

LSU Master's Theses

Cannabis use is associated with many negative consequences. Identification of factors associated with cannabis could inform prevention and treatment efforts. Social anxiety appears to be one risk factor for cannabis-related problems. Thus, it is important to identify malleable cognitive vulnerability factors that may play a role in the social anxiety-cannabis problems relationship. Anxiety sensitivity (AS) is the fear of anxiety-related bodily sensations and is composed of three subfacets: physical, cognitive, and social concerns. AS is associated with greater social anxiety and may play a role in cannabis-related impairment. Intolerance of uncertainty (IU) refers to a tendency to respond negatively to …

Dendrotempestology: Identifying The Statistical Relationship Between Hurricanes And Tree Growth In The Pine Savannas Of Coastal Mississippi, Clay Stephens Tucker

LSU Master's Theses

Hurricanes cause massive destruction of property and land through high wind speeds, high precipitation, and flooding from storm surge inundation. Hurricane Katrina produced nearly an 8.5 meter-high storm surge at Pass Christian, Mississippi. The envelope of high water from Hurricane Katrina covered a large area of the Gulf Coast including, but not limited to, the area from the Atchafalaya Bay in Louisiana to Mobile Bay in Alabama. This study assesses the relationship between hurricane characteristics (i.e., storm surge and maximum wind) and tree growth using coastal pine tree cores taken in Grand Bay National Estuarine Research Reserve (GBNERR). GBNERR, an …

Neodymium Isotope Ratios And A Positive Δ13c Excursion: Connecting Oceanographic And Climate Changes Near The M4-M5 Sequence Boundary Of The Late Ordovician, Zachary Wright

LSU Master's Theses

A significant positive carbon isotope excursion first described from the Guttenberg Member of the Decorah Formation in Iowa called the GICE is a defining feature of Late Ordovician chemostratigraphy. It occurs near the M4-M5 sequence boundary of the Late Ordovician and has been correlated across the globe using prominent K-bentonite ash beds and conodont biomarkers. The cause of the GICE has been debated, with some arguing that it represents the initiation of a glacial period in a greenhouse climate 10 Ma before the end Ordovician glaciation and extinction. A variety of cooling signals have been identified across the M4-M5 sequence …

Straight Ahead: The Life, Pedagogy, And Influence Of Dennis L. Schneider, Louie Colton Sperry Eckhardt

LSU Doctoral Dissertations

The career of Dennis L. ‘Denny’ Schneider, Professor of Trumpet at the University of Nebraska-Lincoln from 1961-1996, was expansive. From small town Nebraska, Schneider graduated from the University of Nebraska and Indiana University. After serving in the USAF Strategic Air Command Band, and teaching public school music, Schneider began teaching at the University of Nebraska. He served as principal trumpet of the Lincoln Symphony Orchestra, Omaha Symphony Orchestra, and the Nebraska Chamber Orchestra for decades. Schneider also served as principal trumpet for the Cabrillo Summer Festival Orchestra, and performed and recorded with the Summit Brass. He was the recipient of …

Space Cops And Cyber Cowboys: An Institutional Comparison Of The Governance Of Space Exploration And The Internet, James Luther Gilley

LSU Doctoral Dissertations

A growing concern for human society is the question of technology, how they are to be used and how can they best be governed. The very question of whether technology is governable remains for the most part unexplored. This work will seek to examine these important questions. By utilizing a historical institutional perspective, two case studies of the governance of technologies that have emerged in the last century will be explored. Space Exploration technologies and the advanced networking of computers known as the Internet will serve as the case to illuminate the question of governing technology. Deep qualitative functional analysis …

Evaluation Of Volumetric And Mechanistic Properties Of Asphaltic Mixtures: Design, Production And Construction, Samuel Booth Cooper Iii

LSU Doctoral Dissertations

There has long been an understanding that differences exist between the asphalt mixture designed in the laboratory and the asphalt mixture produced in the asphalt plant. Additionally, variations between the mixtures compacted in the laboratory and mixtures extracted from the roadway have been observed. There is concern that asphalt mixtures produced through the plant and further compacted on the roadway are not representative of asphalt mixtures designed in the laboratory. This is especially a concern when field specimens (i.e. roadway cores) are used to evaluate the quality of the asphalt mixture. For the first time, a national effort has been …

New Identification And Decoding Techniques For Low-Density Parity-Check Codes, Tian Xia

LSU Doctoral Dissertations

Error-correction coding schemes are indispensable for high-capacity high data-rate communication systems nowadays. Among various channel coding schemes, low-density parity-check (LDPC) codes introduced by pioneer Robert G. Gallager are prominent due to the capacity-approaching and superior error-correcting properties. There is no hard constraint on the code rate of LDPC codes. Consequently, it is ideal to incorporate LDPC codes with various code rate and codeword length in the adaptive modulation and coding (AMC) systems which change the encoder and the modulator adaptively to improve the system throughput. In conventional AMC systems, a dedicated control channel is assigned to coordinate the encoder/decoder changes. …

Development Of Satellite-Assisted Forecasting System For Oyster Norovirus Outbreaks, Jiao Wang

LSU Doctoral Dissertations

Norovirus outbreaks can cause the closure of oyster harvesting waters and acute gastroenteritis in humans associated with consumption of contaminated raw oysters. The overall goal of this study was to develop a satellite-assisted forecasting system for oyster norovirus outbreaks. The forecasting system is comprised of three components: (1) satellite algorithms for retrieval of environmental variables, including salinity, temperature, and gage height, (2) an Artificial Neural Network (ANN) based model, called NORF model, for predicting relative risk levels of oyster norovirus outbreaks, and (3) a mapping method for visualizing spatial distributions of norovirus outbreak risks in oyster harvest areas along Louisiana …

Modelling Of Channelization In Unconsolidated Formations Due To Liquid Injection, Juan Felipe Bautista Barake

LSU Master's Theses

Fluid injection has been increasingly implemented in oil and gas producing fields to optimize hydrocarbon production in both young and mature oil fields across the globe. This situation arises from the realization that early planning of second and tertiary recovery methods may improve project economics significantly. Injectors are then intended to perform at high injection rates with low bottomhole flowing pressures for as long as possible. In the case of injectors drilled in unconsolidated formations, deficient performance often times seems to be the norm. With a majority of these fields being offshore developments in which capital expenditures are high, a …

Disaggregating Student Outcomes By Race And Income: Educational Equity In Oregon, Anne Sinkey, Ann Curry-Stevens

Center to Advance Racial Equity Publications and Reports

This research seeks to answer an emerging question in public school debates: whether race is just a proxy for income when it comes to disparities in educational outcomes among Oregon’s K-12 students. This research set out to respond to this question, and draws from public school data records to answer the question. We investigated student test scores across three different environments: elementary schools, middle schools and high schools. We also investigated student graduation rates from high school. The pattern of findings is absolutely clear: regardless of the site or type of disparities, when we compare how low-income students fare, all …

Community Assessment Of African Maternal Health In The Portland Region: Drivers For Community, Health Services And Institutional Change, Marie-Elena Reyes, Ann Curry-Stevens

Center to Advance Racial Equity Publications and Reports

This community needs assessment surfaces a range of health priorities faced by the African community. While the scope of the study is limited by time and resources, and strategically focused on maternal health, there are a wider set of upstream and downstream health challenges that impede the community’s wellbeing. We encourage policy makers to remember these whenever health policies, and in fact all manner of policies and programs tied to the social determinants of health, are being considered.

The main body of this report contains the insights of the 56 African women who participated in six focus groups. Their voices …

Child And Maternal Health In The Slavic Community: Insights On Assets And Priorities, Marie-Elena Reyes, Ann Curry-Stevens

Center to Advance Racial Equity Publications and Reports

The Slavic community’s health is impacted by race and ethnicity, and also by issues that flow from being a newcomer community, and also from their status as refugees. They also bring to the U.S.A. cultural orientation that is collectivist, and shared experiences of persecution and deep distrust of the government. As is detailed in this report, these experiences have an impact on health and wellbeing, and simultaneously have a detrimental effect on the economic stature of the community.

This Community Needs Assessment on the Health of Slavic Children (ages 0-5 years) was conducted to produce a “needs assessment” report outlining …

String Searching With Ranking Constraints And Uncertainty, Sudip Biswas

LSU Doctoral Dissertations

Strings play an important role in many areas of computer science. Searching pattern in a string or string collection is one of the most classic problems. Different variations of this problem such as document retrieval, ranked document retrieval, dictionary matching has been well studied. Enormous growth of internet, large genomic projects, sensor networks, digital libraries necessitates not just efficient algorithms and data structures for the general string indexing, but indexes for texts with fuzzy information and support for queries with different constraints. This dissertation addresses some of these problems and proposes indexing solutions. One such variation is document retrieval query …

Interorganizational Collaboration And Systemic Change Framework For Building Information Modeling (Bim) Adoption, Rehema Joseph Monko

LSU Doctoral Dissertations

It was found that an integrated framework needs to be developed for the construction industry that allows optimized interorganizational collaboration and systemic change while using Building Information Modeling (BIM) technologies. The framework needs to be effective so the industry can adopt BIM through a set of interdependent activities beyond their organizational boundaries. The adoption has been proven difficult because of industry competitiveness and a fragmented work environment. Meanwhile, existing frameworks vary between studies. This research developed an integrated framework, identified critical factors, and provided an evaluation guide for interorganizational collaboration and set of coordinated changes necessary to adopt BIM. This …

Natural Order: The Case For Applying Biomimetic Design Principles To Mass Communication Technology Design, William Glass

LSU Master's Theses

In this paper I tested the effectiveness of a biomimetically designed classifier algorithm in an effort to support a new argument for the systemic application of biomimetic design principles to mass communication technology. To supplement the purely system-level test, I conducted a series of interviews with interface-level designers regarding their own design strategies, generally accepted design strategies in the field of mass communication technology design, new design strategies, and the landscape of the field in general. The findings of my test lend strong credence to biomimicry's potential systemic contribution to mass communication technology design, and the tone of the interview …

Essays On Sub-National Economic Growth: Evidence From A Global Sample, Dachao Ruan

LSU Doctoral Dissertations

In this dissertation, I make three important contributions to the literature on regional economics. In Chapter 2, I construct a measure of early development, urban population density (urban population relative to total land area), that is novel to the growth literature, and apply GIS techniques to define and locate regions/cities and obtain geographic and historical measures across regions and cities. Chapter 3 investigates the persistence in sub-national development over the past 150 years. I find that regions that had a relatively higher urban population density in 1850 tend to be relatively more developed today. Geographic and climatic characteristics are significantly …

A Comparative Case Study: An Examination Of How Literature Assists Children Experiencing A Trauma, Michelle Clare Benoit

LSU Doctoral Dissertations

This case study, with four elementary school students as participants, examined the use of books and bibliotherapy when experiencing a traumatic incident. Utilizing fiction books, I explored how literature could be a powerful tool for overcoming life-altering events and circumstances, such as losing a pet, going through a divorce, or dealing with a grandparent who is suffering from Alzheimer's, with a bully in school, or the death of a loved one. Bibliotherapy could also be effective when used with individuals that stutter, children with dyslexia, and children coping with death or a parental mental illness. For this study, the data …

Writing In The Geometry Classroom, Amy Lynn Rome

LSU Master's Theses

This study sought a time-efficient way to implement writing in ninth-grade Geometry. Students wrote responses to five expository writing prompts spread out over the spring semester of the 2014-2015 school year. Students’ first attempts were graded and returned to them along with feedback in the form of a teacher-written exemplar. Students rewrote assignments to improve their grades. All first and second attempts were collected and evaluated. We found that students were more successful after seeing the exemplar. Moreover, on assignments occurring later in the semester, more students were able to score in the top categories of the writing assignments on …

Uncertainty Analyses Of Climate Change Impact On Hydrologic Projections, Ehsan Beigi

LSU Doctoral Dissertations

This study conducts uncertainty analysis on future region-scale hydrologic projections under the uncertain climate change projections of the IPCC Fifth and Forth Assessment Reports. The hierarchical Bayesian model averaging (HBMA) method is adopted to segregate and prioritize sources of climate projection uncertainty, obtain ensemble mean of hydrologic projection, and quantify the hydrologic projection uncertainty arising from individual uncertainty sources. This study deals with the choices of greenhouse gas (GHG) concentration trajectories, global climate models (GCMs), and GCM initial conditions as three major uncertainty sources in downscaled precipitation and temperature projections. The method is applied to investigate future hydrologic projections in …

Agricultural Policy, Off-Farm Income, And Farmland Values: The Case Of South Korea, Hyunjeong Joo

LSU Doctoral Dissertations

Farmland plays a dual role for farm business households; it can be both a production cost and an asset. As a production cost, farmland affects farm production decisions. As an asset, farmland comprises 80% of the total farm households’ assets. The total land available for farming is decreasing due to non-farming demand for land. The primary goal of this dissertation is to examine the impact of farm household income on farmland values. Specifically, I will assess the impact of off-farm income and government subsidies on farmland values in South Korean farm households. The majority of the studies on off-farm income, …

Rhetoric And Food: The Rise Of The Food Truck Movement, Bryan W. Moe

LSU Doctoral Dissertations

This analysis is an attempt to study the rise of a new mobile food medium the food truck. I examine the movement of rhetorical actors, the situation, the audiences, and discourses created and sustained through rhetorical practices. These include looking into contemporary controversies, the history and storytelling that helps to convey identity, a new aesthetic experience created by the medium, and specifically their sophistic character and rhetoric helping them speak on issues of social justice and change. To understand these texts, I examine each of them in light of their rhetorical situation and the convergence of a multitude of kairotic …

Is Downsizing Prisons Dangerous? The Effect Of California’S Realignment Act On Public Safety, Jody Sundt, Emily Salisbury, Mark G. Harmon

Criminology and Criminal Justice Faculty Publications and Presentations

Research Summary: Recent declines in imprisonment raise a critical question: Can prison populations be reduced without endangering the public? This question is examined by testing the effect of California’s dramatic efforts to comply with court-mandated targets to reduce prison overcrowding using a pretest-posttest design. The results showed that California’s Realignment Act had no effect on violent or property crime rates in 2012, 2013, or 2014. When crime types were disaggregated, a moderately large, statistically significant association between Realignment and auto theft rates was observed in 2012. By 2014, however, this effect had decayed and auto theft rates returned to pre-Realignment …

Holecene Paleoenvironmental Reconstruction From The Shark River Estuary, Everglades, Florida, Qiang Yao

LSU Doctoral Dissertations

This dissertation examines the paleoecological records from the Shark River Estuary in the southwestern part of the Everglades National Park (ENP), Florida, with primary goal of reconstructing the Holocene history of the coastal mangrove ecosystem in the Florida Coastal Everglades. Roughly 15 meters of sediments were collected from 4 study sites and subjected to loss-on ignition, palynological, and X-ray fluorescence analyses. According to the literature, the earliest communities of Rhizophora mangle (red mangrove) occurred prior to 8,000 cal yr BP in the south-central area of the Belize Barrier Reef Platform. Between 7,000 and 5,000 cal yr BP, Rhizophora was established …

A Glorious Assemblage: The Rise Of The Know-Nothing Party In Louisiana, Ryan M. Hall

LSU Master's Theses

Between 1853 and 1856, the nativist and anti-Catholic Know-Nothing party became a powerful political force in Louisiana despite the state’s unique religious and political makeup. This thesis studies the rise of the party in three regions of the state: New Orleans, the Sugar Parishes, and North Louisiana and the Florida Parishes to show that the party gained popularity in the state differently in different regions. In New Orleans, the party rejected anti-Catholicism and adopted a stance against political corruption. In the Sugar Parishes, the Know-Nothings were merely a continuation of the Whig Party under a new name. In North Louisiana …

Stress In Allied Healthcare Students, Amy Fitzsimmons

Undergraduate Theses and Senior Projects

No abstract provided.

Education, Oppression, And Democracy : A Philosophical Approach To Educational Inequity, Ben Davis

Undergraduate Theses and Senior Projects

No abstract provided.

Sensory Processing And Conducive Study Environments, Katrina Kotta

Undergraduate Theses and Senior Projects

No abstract provided.

Skin Color And Social Practice: The Problem Of Race And Class Among New Orleans Creoles And Across The South, 1718-1862, Andrew N. Wegmann

LSU Doctoral Dissertations

The purpose of this study is to uncover the story of the New Orleans Creoles of color—the mixed-race, francophone middle class of New Orleans and the surrounding area before the Civil War. It shows how the people who became the New Orleans Creoles of color worked endlessly, over three colonial and territorial regimes and nearly 150 years, to define themselves according to the ever-changing cultural, social, and racial landscapes before them. It places this local history in the wider context of the North American continent and the Atlantic World—the space within which these people actually lived. In so doing, it …