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Bird Use Of Heterogeneous Native Prairie Biofuel Production Plots, Jarrett D. Pfrimmer
Bird Use Of Heterogeneous Native Prairie Biofuel Production Plots, Jarrett D. Pfrimmer
Dissertations and Theses @ UNI
Changing land use practices and agricultural intensification have driven the loss of >90% of native grassland habitats in the Midwestern U.S.A. Consequently, grassland birds have declined more drastically than any other North American guild. Current biofuel production systems in the Midwest rely on high input monoculture crops that provide little habitat value to most grassland birds. The Tallgrass Prairie Center at the University of Northern Iowa is exploring the feasibility of growing and harvesting diverse mixes of native prairie vegetation for use as a sustainable biofuel in a manner that also provides high quality bird habitat. In 2009, 48 research …
An Analysis Of The Effect Of A 21st-Century-Designed Middle School On Student Achievement, Gary David Schwartz
An Analysis Of The Effect Of A 21st-Century-Designed Middle School On Student Achievement, Gary David Schwartz
Dissertations and Theses @ UNI
Considering the billions of dollars invested in school buildings and the accountability for improving student achievement, there has been the lingering question about how the physical learning environment impacts student achievement. This study explored the impact of a new 21st-century-designed middle school facility on student academic achievement in mathematics and science. This case study used a mixed methods approach to examine the student achievement of 158 middle school students and the perceptions from 13 teachers and two administrators about the impact of the new facility on teaching and student learning. The purpose of this study was to analyze the effect …
Nurturing Resiliency Among Adolescents With Emotional And Behavioral Disturbances (Ebd) In A Special Education Setting, Rimaz Herz
Dissertations and Theses @ UNI
Many youth with emotional and behavioral disturbance (EBD) face significant challenges and difficulties with their families, schools, friends and peers, and even themselves, and experience them academically, emotionally, physically, socially and behaviorally. These youth need resilience to help them overcome these difficulties and challenges. This qualitative study focused on understanding the nature of schooling and interventions provided to students identified as having the most severe emotional and behavioral disabilities or needs, and how such schooling and interventions might explicitly or implicitly promote resilience. The researcher sought to examine interventions used by observing a specific self-contained program with clearly defined services. …
Batman And The Superhero Fairytale: Deconstructing A Revisionist Crisis, Travis John Landhuis
Batman And The Superhero Fairytale: Deconstructing A Revisionist Crisis, Travis John Landhuis
Dissertations and Theses @ UNI
Contemporary superhero comics carry the burden of navigating historical iterations and reiterations of canonical figures—Batman, Superman, Green Lantern et al.—producing a tension unique to a genre that thrives on the reconstruction of previously established narratives. This tension results in the complication of authorial and interpretive negotiation of basic principles of narrative and structure as readers and producers must seek to construct satisfactory identities for these icons. Similarly, the post-modern experimentation of Robert Coover—in Briar Rose and Stepmother—argues that we must no longer view contemporary fairytales as separate (cohesive) entities that may exist apart from their source narratives. Instead, through strategies …
Automated Sinkhole Extraction And Morphological Analysis In Northeast Iowa Using High-Resolution Lidar Data, Jonathon Launspach
Automated Sinkhole Extraction And Morphological Analysis In Northeast Iowa Using High-Resolution Lidar Data, Jonathon Launspach
Dissertations and Theses @ UNI
Accurate and detailed mapping of sinkholes is necessary to ensure sinkhole monitoring and management. Historically, sinkholes were found and digitized manually by a visual examination of aerial photos or through field surveying. This paper develops a new, multicriteria LiDAR-based sinkhole extraction method and automated processes to detect sinkholes and their boundaries. This technique of extraction is unique as it identifies sinkhole boundaries automatically using remotely sensed data, compared to traditional methods of manually tracing the perimeter. A sinkhole detection module was developed within a GIS environment to determine location and boundaries of the sinkholes. Several small study areas were selected …
Christians, Lesbians, Gays, And Bisexuals: Examining The Roles Of Uncertainty And Religiosity In Christian Attitudes Toward Lgb Individuals, Megan Deanne Wharff Kavanaugh
Christians, Lesbians, Gays, And Bisexuals: Examining The Roles Of Uncertainty And Religiosity In Christian Attitudes Toward Lgb Individuals, Megan Deanne Wharff Kavanaugh
Dissertations and Theses @ UNI
This thesis examines heterosexual Christian attitudes toward LGB individuals, specifically to determine if there is a relationship between intergroup contact, uncertainty reduction, and supportive attitudes toward LGB individuals among Christian individuals. Participants completed an online survey, which assessed religious beliefs, levels of uncertainty about interactions with LGB individuals, levels of contact with LGB individuals, and attitudes toward LGB individuals. The goal of the research was to identify the current attitudes of heterosexual Christians and the factors that may influence those attitudes. Findings indicate that participants were unsure, but leaned toward valuing the contributions of LGB individuals in society and believing …
An Examination Of Reaching, Teaching, Feeding And Loving People For The Kingdom Of God, Gwendolyn Hill
An Examination Of Reaching, Teaching, Feeding And Loving People For The Kingdom Of God, Gwendolyn Hill
Doctoral Dissertations and Projects
The purpose of this project is to demonstrate the biblically prescribed methodologies and innovative tools for attaining the desirable results of more disciples instead of followers of Christ. It is incumbent on every believer to fulfill the mandate of the Great Commission, to go out into the world and preach the gospel to every ethnos. There are several contributing factors that are conducive to people globally starving holistically mainly due to a deviancy of knowledge imparted and less implementation of discipleship. The inclusion of this thesis is a partial account of interviews with some Christian leaders and selected Disciples of …
A Comparison Of Georgia Criterion Referenced Competency Test Math Scores Between At-Risk Fifth Grade Students Receiving Computer Based Math Instruction And At-Risk Students Not Receiving Computer Based Math Instruction, Katherine Arnold
Doctoral Dissertations and Projects
This causal comparative research study compared the mean score differences from two groups of fifth grade students. Both groups were identified at-risk, based on a curriculum based math measure and their 4th grade performance on the state assessment, for failure to meet math standards on the state assessment. The curriculum-based measure in this study was the 2011-12 AIMSweb Mathematic Concepts and Applications (M-CAP). Mathematics achievement was measured by scores on the 2012 math subtest of the Georgia Criterion Referenced Competency Test (CRCT). Each group received classroom instruction using Learning Focused Schools (LFS) math strategies. The treatment group received additional computer …
The Essential Leadership Elements For Transforming The Ethos Of A Local Church, Austin Rammell
The Essential Leadership Elements For Transforming The Ethos Of A Local Church, Austin Rammell
Doctoral Dissertations and Projects
The purpose of this project is to demonstrate the essential leadership elements involved in transforming the ethos of local church from a community organization for Christians into a movement to change the world. It is a case study of what took place at Hardin Baptist Church (now Venture). In addition to published scholarship, the findings from the case study will be compared with five other churches that have experienced a similar transformation. The reason for this project is to document the key elements of the transformation of Hardin in hopes that the changes will serve as a tool for other …
Analysis Of Wind Power Generation With Application Of Wind Tunnel Attachment, Ulan Dakeev
Analysis Of Wind Power Generation With Application Of Wind Tunnel Attachment, Ulan Dakeev
Dissertations and Theses @ UNI
This study presents an empirical method for developing a new approach in which a wind tunnel apparatus is used to improve the efficiency of power output by a small-scale wind turbine. A custom-designed wind tunnel attachment was constructed to record, analyze, and interpret both incoming and outgoing wind velocity readings. Moreover, the dissertation project addresses a significant issue concerning the power generation of an experimental wind turbine while the wind tunnel is attached. Wind power characteristics that indicate power output versus wind velocity were obtained by performing a number of case studies. The case studies included normal operation of the …
Desulfotomaculum Dissimilatory Reduction Of Iron (Iii), Jim Elric
Desulfotomaculum Dissimilatory Reduction Of Iron (Iii), Jim Elric
Dissertations and Theses @ UNI
Excess plant nutrient, often from agricultural runoff, can cause uncontrolled algal growth that leads to eutrophic conditions in a water body. Desulfotomaculum sp. reduction of ferric ions to ferrous ions can aid in reduction of excess phosphate in a water body. This bacterium may use iron mine tailings as an inexpensive source of iron ions that can aid in elimination of excess nutrient load such as phosphates. As part of a remediation plan Desulfotomaculum sp. reduction of ferric ions can help restore and maintain a healthy aquatic ecosystem. The biochemical pathway of iron reduction by Desulfotomaculum sp. is unclear and …
Bcl9 And C9orf5 Are Associated With Negative Symptoms In Schizophrenia: Meta-Analysis Of Two Genome-Wide Association Studies, Chun Xu, Nagesh Aragam, Xia Li, Erika Cynthia Villa, Liang Wang, David Briones, Brenda Bin Su, Michael A. Escamilla, Kesheng Wang
Bcl9 And C9orf5 Are Associated With Negative Symptoms In Schizophrenia: Meta-Analysis Of Two Genome-Wide Association Studies, Chun Xu, Nagesh Aragam, Xia Li, Erika Cynthia Villa, Liang Wang, David Briones, Brenda Bin Su, Michael A. Escamilla, Kesheng Wang
Health & Biomedical Sciences Faculty Publications
Schizophrenia is a chronic and debilitating psychiatric condition affecting slightly more than 1% of the population worldwide and it is a multifactorial disorder with a high degree of heritability (80%) based on family and twin studies. Increasing lines of evidence suggest intermediate phenotypes/endophenotypes are more associated with causes of the disease and are less genetically complex than the broader disease spectrum. Negative symptoms in schizophrenia are attractive intermediate phenotypes based on their clinical and treatment response features. Therefore, our objective was to identify genetic variants underlying the negative symptoms of schizophrenia by analyzing two genome-wide association (GWA) data sets consisting …
Framework Of Damage Detection In Vehicle-Bridge Coupled System And Application To Bridge Scour Monitoring, Xuan Kong
LSU Doctoral Dissertations
Most vibration-based damage identification methods make use of measurements directly from bridge structures with attached sensors. However, the vehicle moving on the bridge can serve as both an active actuator and a response receiver. This dissertation aimed to develop new methodologies to eventually detect bridge damages such as scour using the dynamic response of the vehicle. To reach the final objective, a framework of damage identification was developed first, which gave a guideline on the three crucial steps for damage detection. An optimization method was proposed that combines the Genetic Algorithm (GA) and the First Order (FO) method. It has …
Microstructure And Physics-Based Structural Models For Suspended Clay-Exopolymer Flocs, Xiaoling Tan
Microstructure And Physics-Based Structural Models For Suspended Clay-Exopolymer Flocs, Xiaoling Tan
LSU Doctoral Dissertations
Costal or shoreline waters are often characterized by high concentrations of suspended cohesive sediments (or clay) affected by varied organic matters (mostly extracellular polymeric substances or exopolymers), salt, and hydrodynamic disturbance. Resulting from the flocculation-disaggregation between the colloidal clay and exopolymer, the size and structure changes of the cohesive sediments are of key importance for understanding sediment transport processes (i.e., settling, breakage, and survivability) and the geotechnical and geophysical properties of the bottom bed. Because the coastal environment is extremely complicated, with many unpredictable and uncontrollable parameters, current knowledge is still insufficient to predict or fully explain the behavior of …
When The Mouse Meets The Elephant : A Manual For String Bass Players With Application Of The Philosophy And Principles Of The F. M. Alexander Technique, Yun-Chieh Chou
LSU Doctoral Dissertations
This study was concerned with the use of the Alexander Technique principles in avoiding unwanted muscular tension and maintaining proper use of the body in double bass playing. Of particular importance was how the Alexander Technique could facilitate the fundamentals of double bass playing. The Alexander Technique is a hands-on method which aids the individual in achieving muscular coordination which is free and lively. Applying the principles of the Alexander Technique helps one achieve a harmonious psychophysical state, which results in greater ease, poise, and physical coordination in any activity, even the most demanding of virtuoso works for double bass. …
Earth Occultation Imaging Of The Low Energy Gamma-Ray Sky With The Fermi/Gamma-Ray Burst Monitor, James Craig Rodi
Earth Occultation Imaging Of The Low Energy Gamma-Ray Sky With The Fermi/Gamma-Ray Burst Monitor, James Craig Rodi
LSU Doctoral Dissertations
The hard X-ray/soft gamma-ray sky is highly variable as source intensities can vary on timescales from fractions of a second to years. The type of sources emitting at these energies often include compact objects such as white dwarfs, neutron stars, and black holes interacting with the surrounding environment, which enables the study of the properties and characteristics of these exotic objects. Because the interactions with the environment is often through accretion, most of the emission is in X-rays and gamma-rays Frank et al. 1992 making this energy range critical to understanding the relevant physical processes and mechanisms. Hard X-ray/soft gamma-ray …
Essays On Credit Default Swaps And Debtor-Creditor Relationships, Cihan Uzmanoglu
Essays On Credit Default Swaps And Debtor-Creditor Relationships, Cihan Uzmanoglu
LSU Doctoral Dissertations
Over the last decade, markets for credit insurance have developed dramatically and credit default swaps (CDS) have become the instrument of choice when it comes to hedging credit risks. The expanded hedging opportunities CDS provide and the allied benefits of better risk-sharing notwithstanding, concerns over the economic role of CDS arise from their ability to engender “empty” creditors – joint holders of the bond and CDS, and the role such creditors play in distress situations. Financially distressed firms often restructure their debt through out-of-court renegotiations with creditors to avoid formal default. In addition to the going concern value of the …
The Refusal Speech Acts Of Two Generations Of Korean Women : Mother-In-Law And Daughter-In-Law In Interaction, Saem Han
LSU Doctoral Dissertations
The aim of this study is to analyze and interpretate the refusal speech acts of two generations of Korean women: mothers-in-law and daughters-in-law. To be specific, it examines if daughters-in-law’s use of strategies were dependent on the age difference/ hierarchies and to see if there was any difference in the type of strategies used by daughters-in-law depending on whether mothers-in-law have social power or not. The data were collected from three soap operas. Compared with previous data collection methods, such as discourse completion tests or role-plays, this data collection method has advantages for a pragmatics study. The results indicated that …
High Capacity Digital Beam Steering Technology, Daniel James Hebert
High Capacity Digital Beam Steering Technology, Daniel James Hebert
LSU Doctoral Dissertations
A novel method is described in detail for steering light in many directions without moving mechanical parts. The method involves a combination of liquid crystal cells and polarizing beam splitters. The polarization at each beam splitter is controlled by applying a signal to its corresponding liquid crystal cell. A study of light steering techniques is described for efficient beam placement, in a line and plane. These techniques permit accurate, non-mechanical, beam steering limited by the response time of the liquid crystal cells. A theoretical limit to the number of discrete directions is described and closely approached for a one dimensional …
Technology Argument Frames : Examining The Impact Of Argumentation On The Development Of A Health Information Exchange Initiative, David Murithi Murungi
Technology Argument Frames : Examining The Impact Of Argumentation On The Development Of A Health Information Exchange Initiative, David Murithi Murungi
LSU Doctoral Dissertations
This dissertation applies the Technology Frames of Reference (TFR) theoretical lens to examine the implementation of a health information exchange (HIE) initiative in southeast USA. It extends the TFR lens by developing Toulminian argument maps to depict frame structure and employing the argument theories of Toulmin, Habermas and Perelman Olbrechts-Tyteca to help analyze the role that argumentation plays in the emergence and development of the technology frames that characterized this HIE endeavor. The argument maps developed in this dissertation helped to assess the level of argumentation within frames and to compare argumentation across frame domains. The argument maps were also …
Geometric Modeling And Optimization Over Regular Domains For Graphics And Visual Computing, Shenghua Wan
Geometric Modeling And Optimization Over Regular Domains For Graphics And Visual Computing, Shenghua Wan
LSU Doctoral Dissertations
The effective construction of parametric representation of complicated geometric objects can facilitate many design, analysis, and simulation tasks in Computer-Aided Design (CAD), Computer-Aided Manufacturing (CAM), and Computer-Aided Engineering (CAE). Given a 3D shape, the procedure of finding such a parametric representation upon a canonical domain is called geometric parameterization. Regular geometric regions, such as polycubes and spheres, are desirable domains for parameterization. Parametric representations defined upon regular geometric domains have many desirable mathematical properties and can facilitate or simplify various surface/solid modeling and processing computation. This dissertation studies the construction of parameterization on regular geometric domains and explores their applications …
Group 3 Late Embryogenesis Abundant Proteins From Embryos Of Artemia Francisana : Molecular Characteristics, Expression And Function, Leaf Chandra Boswell
Group 3 Late Embryogenesis Abundant Proteins From Embryos Of Artemia Francisana : Molecular Characteristics, Expression And Function, Leaf Chandra Boswell
LSU Doctoral Dissertations
Late Embryogenesis Abundant (LEA) proteins are highly hydrophilic, intrinsically disordered proteins whose expression has been correlated with desiccation tolerance in anhydrobiotic organisms. Embryos of the brine shrimp, A. franciscana, contain high titers of group 3 LEA proteins during desiccation-tolerant stages such as diapause and pre-emergence development. Here I report the sequencing of three novel variants of AfrLEA3m mRNA (Afrlea3m_47, Afrlea3m_43 and Afrlea3m_29), whose deduced protein sequences are are predicted to localize to the mitochondrion. These mRNAs are very similar to Afrlea3m, but each has a stretch of sequence that is absent in at least one of the others. In addition …
Evolutionary And Ecological Dynamics Of Rapid Radiation Of Pocket Gophers (Thomomy's) In Mexico, Verity Lynn Mathis
Evolutionary And Ecological Dynamics Of Rapid Radiation Of Pocket Gophers (Thomomy's) In Mexico, Verity Lynn Mathis
LSU Doctoral Dissertations
Understanding biodiversity is one of the driving foundations of evolutionary biology and researchers use a myriad of tools to uncover and understand the processes contributing to it. The evolutionary and ecological dynamics in a group of smooth-toothed pocket gophers, the Thomomys umbrinus species complex, is studied for this dissertation. This complex is distributed from south-central Arizona and southwestern New Mexico south to Veracruz, Mexico. The genetic complexity of T. umbrinus was initially discovered via allozymes and karyotypes, resulting in five genetic clades: three with one diploid number of chromosomes (2n = 76; two clades distributed in the Sierra Madre Occidental …
Large Deviations For Stochastic Navier-Stokes Equations With Nonlinear Viscosities, Ming Tao
Large Deviations For Stochastic Navier-Stokes Equations With Nonlinear Viscosities, Ming Tao
LSU Doctoral Dissertations
In this work, a Wentzell-Freidlin type large deviation principle is established for the two-dimensional stochastic Navier-Stokes equations (SNSE's) with nonlinear viscosities. We fi_x000C_rst prove the existence and uniqueness of solutions to the two-dimensionalstochastic Navier-Stokes equations with nonlinear viscosities using the martingale problem argument and the method of monotonicity. By the results of Varadhan and Bryc, the large deviation principle (LDP) is equivalent to the Laplace-Varadhan principle (LVP) if the underlying space is Polish. Then using the stochastic control and weak convergence approach developed by Budhiraja and Dupuis, the Laplace-Varadhan principle for solutions of stochastic Navier-Stokesequations is obtained in appropriate function …
Classroom Observation, Self-Assessment Of Efficacy, And Student Perceptions Of Engagement As Predictors Of Value-Added Scores, Leslie Davis Blanchard
Classroom Observation, Self-Assessment Of Efficacy, And Student Perceptions Of Engagement As Predictors Of Value-Added Scores, Leslie Davis Blanchard
LSU Doctoral Dissertations
The purpose of this study was to determine which has the strongest correlation to student achievement as measured by value-added test scores: Principal Observations, Teachers Self-Efficacy Ratings, or Student Perceptions of Teacher Effectiveness. 68 teachers from a K-12 public school in the southeast region of the United States agreed to participate in the study. The Teachers’ Sense of Efficacy Scale (TSES) was utilized to measure the teachers in terms of their own reports of self efficacy. The School Improvement Model (SIM) of Iowa State University instruments were used to measure the students’ perceptions of teacher effectiveness. The Teacher Advancement Program …
Resolving Pronominal Anaphora Using Commonsense Knowledge, Seyedeh Leili Javadpour
Resolving Pronominal Anaphora Using Commonsense Knowledge, Seyedeh Leili Javadpour
LSU Doctoral Dissertations
Coreference resolution is the task of resolving all expressions in a text that refer to the same entity. Such expressions are often used in writing and speech as shortcuts to avoid repetition. The most frequent form of coreference is the anaphor. To resolve anaphora not only grammatical and syntactical strategies are required, but also semantic approaches should be taken into consideration. This dissertation presents a framework for automatically resolving pronominal anaphora by integrating recent findings from the field of linguistics with new semantic features. Commonsense knowledge is the routine knowledge people have of the everyday world. Because such knowledge is …
Time Of Day Preferences And Resource Allocation, Alicia Marie Briganti
Time Of Day Preferences And Resource Allocation, Alicia Marie Briganti
LSU Doctoral Dissertations
Previous studies have shown that circadian rhythms can have a significant impact on cognitive task performance (Bodenhausen, 1990; May, Hasher, & Stoltzfus, 1993), and that performance is better during participants’ optimal time of day for explicit memory tasks and for tasks where inhibition of responses is required. Researchers have concluded that deficits during one’s non-optimal time of day are due to inefficient inhibition (e.g., May & Hasher, 1998). However, previous studies have not sufficiently addressed possible changes in resource allocation, or the amount of resources that are allocated to the primary task versus the amount of resources used to actively …
Topology And Shape Optimization Of Hydrodynamically–Lubricated Bearings For Enhanced Load-Carrying Capacity, Mohammad Fesanghary
Topology And Shape Optimization Of Hydrodynamically–Lubricated Bearings For Enhanced Load-Carrying Capacity, Mohammad Fesanghary
LSU Doctoral Dissertations
Bearings are basic and essential components of nearly all machinery. They must be designed to work under different loads, speeds, and environments. Of all the performance parameters, load-carrying capacity (LCC) is often the most crucial design constraint. The objective of this research is to investigate different design methodologies that significantly improve the LCC of liquid-lubricated bearings. This goal can be achieved by either altering the surface texture or the bearing geometrical configuration. The methodology used here is based on mathematical topological/shape optimization algorithms. These methods can effectively improve the design performance while avoiding time-consuming trial-and-error design techniques. The first category …
Alexis De Tocqueville’S Political Science Of Revolutions; Theory And Application, Michal Maciej Kuz
Alexis De Tocqueville’S Political Science Of Revolutions; Theory And Application, Michal Maciej Kuz
LSU Doctoral Dissertations
This dissertation examines the theory of revolutions presented in the main writing of Alexis de Tocqueville and its importance in the field of political theory as well as its possible application in the field of comparative politics. Scholars specializing in the study of the writings of Alexis de Tocqueville have for many years debated on whether the works of this author offer a comprehensive political theory of regimes and political change. This work supports the idea that in all his major writings de Tocqueville works within the same theoretical framework and develops his own typology of modern regimes. At the …
Modeling, Numerical Analysis, And Predictions For The Detonation Of Multi-Component Energetic Solids, Michael Wayne Crochet
Modeling, Numerical Analysis, And Predictions For The Detonation Of Multi-Component Energetic Solids, Michael Wayne Crochet
LSU Doctoral Dissertations
Metal powders are often used as an additive to conventional high explosives to enhance the post-detonation blast wave. Piston-impact simulations are commonly utilized to predict performance metrics such as detonation speed and strength, as well as assessing the impact and shock sensitivity of these materials. The system response is strongly influenced by the initial particle size distribution and material composition. Multiphase continuum models have been routinely applied at the macroscale to characterize the detonation of solid high explosives over engineering length scales. Current models lack a description of the physically permissible constitutive relations for mass transfer due to general chemical …