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Articles 11311 - 11340 of 14983
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A Lakota/Nakota/Dakota Model Of Oratory, Cheryl A. Long Feather
A Lakota/Nakota/Dakota Model Of Oratory, Cheryl A. Long Feather
Theses and Dissertations
Lakota/Nakota/Dakota people, as well as other Native American tribal groups, did not traditionally use the established, conventional forms of oration to which most in contemporary mainstream society relate. Rather, Native-specific epistemology, ontology and axiology played a central role in forming and supporting the function of communication as well as the speaking conventions that continue to be used today. These culturally-based patterns and structures present both challenges and opportunities that have been only marginally explored in various disciplines such as education, social and behavioral science, and psychology. This body of work exists for the purpose of exploring a traditionally Native understanding …
Distribution, Abundance, And Habitat Associations Of The Long-Billed Curlew In Southwestern North Dakota, Daniel S. Ackerman
Distribution, Abundance, And Habitat Associations Of The Long-Billed Curlew In Southwestern North Dakota, Daniel S. Ackerman
Theses and Dissertations
Gathering information on North American bird populations calls for long-term monitoring programs covering extensive geographic region to provide basic information on distribution, habitat use and availability, abundance, and changes in abundance. Information regarding population size, distributions and trends is of critical importance to conservation planners, managers, and biologists concerned with widespread degradation of ecosystems, alteration and loss of habitats, and understanding the effective conservation of a species. In accordance with the recommended monitoring of bird populations, especially species of high conservation concern, I undertook a study of the long-billed curlew (Numenius americanus parvus; hereafter LBCU or curlew). The LBCU were …
Instructional Design & Technology, Adrienne M. Nelson
Instructional Design & Technology, Adrienne M. Nelson
Theses and Dissertations
New Instructional Design & Technology students come from a variety of backgrounds, age groups, and geographical locations. Some students will attend classes in-person on the UND campus, while others will attend at a distance - using technology - from a home or office location. To succeed in the program, they must learn to interact with a variety of tools and technology, including MBS Direct (online bookstore), the EZ and Blackboard Learning Management Systems (LMS), Adobe Acrobat Connect Professional (formerly Macromedia Breeze: henceforth refined to as Connect Pro) AV conferencing, phone conferencing, real video streaming, and more. Help is cunently only …
Effects Of Exposure To Perinatal Ultrasound Radiation On Information Processing In The Auditory System, Jennifer Burnett
Effects Of Exposure To Perinatal Ultrasound Radiation On Information Processing In The Auditory System, Jennifer Burnett
Theses and Dissertations
Ultrasound (US) has become a standard procedure used during pregnancy to document the health and development of a fetus. When ultrasound was first developed, some researchers urged caution, suggesting that the possibility of hazard should be kept under constant review. Given the routine application of fetal ultrasound imaging, any possibility of deleterious developmental effects resulting from its use is an important public health issue. Rats have a well characterized central nervous system whose neurochemical pathways and neuronal electrophysiology qualitatively correspond to those of humans. Because of this, we opted to use Wistar rats as an animal model to document effects …
Manifold Sculpting, Michael S. Gashler
Manifold Sculpting, Michael S. Gashler
Theses and Dissertations
Manifold learning algorithms have been shown to be useful for many applications of numerical analysis. Unfortunately, existing algorithms often produce noisy results, do not scale well, and are unable to benefit from prior knowledge about the expected results. We propose a new algorithm that iteratively discovers manifolds by preserving the local structure among neighboring data points while scaling down the values in unwanted dimensions. This algorithm produces less noisy results than existing algorithms, and it scales better when the number of data points is much larger than the number of dimensions. Additionally, this algorithm is able to benefit from existing …
An Infection Model For Examining The Effects Of Gender And Diabetic State On Proinflammatory Cytokine Secretion By Phagocytic Cells In Response To Infection With Burkholderia Pseudomallei, Laura L. Dickey
Theses and Dissertations
Burkholderia pseudomallei is an opportunistic soil pathogen that causes melioidosis, a life-threatening human disease prevalent in Southeast Asia, northern Australia, the Middle East, Africa, and South America. The organism also causes disease in plants and animals. Persons with severe melioidosis usually die of septicemia. Relatively little is known regarding the virulence mechanisms of B. pseudomallei; however, several putative virulence determinants have been identified. The organism is able to invade and replicate within phagocytic cells and is particularly pathogenic in males with diabetes mellitus. B. thailandensis is closely related to B. pseudomallei, but is not pathogenic. This study examines various in …
Dna-Templated Nanomaterials, Hector Alejandro Becerril-Garcia
Dna-Templated Nanomaterials, Hector Alejandro Becerril-Garcia
Theses and Dissertations
Nanomaterials display interesting physical and chemical properties depending on their shape, size and composition. Self assembly is an intriguing route to producing nanomaterials with controllable compositions and morphologies. DNA has been used to guide the self assembly of materials, resulting in: (1) metal nanowires; (2) metal or semiconductor nanorods; (3) carbon nanotubes; and (4) semiconductor, metal or biological nanoparticles. My work expands the range of DNA templated nanomaterials and develops novel ways of using DNA to pattern nanostructures on surfaces. I have performed the first synthesis of silver nanorods on single stranded DNA, an attractive material for localizing DNA coupled …
Phosphorylation And Regulation Of The Dopamine Transporter By Psychostimulant Substrates And Protein -Protein Interactions, Mark A. Cervinski
Phosphorylation And Regulation Of The Dopamine Transporter By Psychostimulant Substrates And Protein -Protein Interactions, Mark A. Cervinski
Theses and Dissertations
The dopamine transporter (DAT) is an integral membrane protein that clears dopamine (DA) from the synaptic space following neurotransmission. DATs amino acid sequence contains numerous serine, threonine and tyrosine residues, some of which are located in protein kinase consensus sites. While DAT phosphorylation and regulation in response to protein kinase C activation is well documented, evidence suggests that multiple signals and interacting proteins also mediate these processes. Previous research has also demonstrated that DAT regulation is influenced by the presence of the DAT substrates amphetamine (AMPH), methamphetamine (METH) and the uptake blocker cocaine. Using 32PO4 metabolic labeling and [3H]DA uptake …
Perceptions Of The Sitting Bull College Elementary Special Education Program Between 1996–2005, Kathryn Froelich
Perceptions Of The Sitting Bull College Elementary Special Education Program Between 1996–2005, Kathryn Froelich
Theses and Dissertations
The purpose of this study was to investigate how the Sitting Bull College Elementary/Special Education program has contributed to the retention, qualifications, and sense of efficacy of graduates from 1996 through 2005. The study further examined graduate retention, graduate qualifications, and graduate sense of efficacy as related to program content, program delivery, and program faculty. This study was conducted as a mixed method/action research and involved methodology conducted through the administration of a survey and individual interviews. A 29 item written survey was mailed to all 32 program graduates. Interview questions were developed and conducted with ten of the questionnaire …
Decreased Renal Basement Membrane Thickening Is Accompanied By Elevated Renal Antioxidants In The Ames Dwarf Mouse Model Of Delayed Aging, Mandy M. Meyer
Decreased Renal Basement Membrane Thickening Is Accompanied By Elevated Renal Antioxidants In The Ames Dwarf Mouse Model Of Delayed Aging, Mandy M. Meyer
Theses and Dissertations
Experimental evidence suggests that disease- and age-related thickening of glomerular (GBM) and tubular (TBM) basement membranes may be related to increases in reactive oxygen species (ROS). Studies also suggest that antioxidants may function as renoprotectants against such ROS-induced damage. The current study focuses on metallothionein-I/II (MT-I/II) and glutathione (GSH), both of which exhibit potent antioxidant functions. Ames dwarf mice, which exhibit elevated tissue antioxidant levels (catalase, Cu/Zn superoxide dismutase, GSH) and an average life span significantly greater (50-65%) than wild type controls, were used to test our hypothesis that increased levels of renal MT-I/II and GSH are concomitant with decreased …
Preparing A Surpassing Moral Force: The Dynamics Of The Brigham University Singers, David Ray Burton
Preparing A Surpassing Moral Force: The Dynamics Of The Brigham University Singers, David Ray Burton
Theses and Dissertations
This is a qualitative study that takes a close look at an exemplary performing group, the Brigham Young University Singers. Using the methods of phenomenology and naturalistic inquiry, the author presents a rich, thick description of the daily activities and unique culture of the choir. Both strengths and weaknesses of the group are identified so that others can have an authentic, vicarious experience through reading the Singers' story. The author also identifies seven principles that contribute to the success of the group so that other choral conductors can adapt them to their own unique situations. Educators in all disciplines can …
Feasibility Study Of Variance Reduction In The Logistics Composite Model, George P. Cole Iii
Feasibility Study Of Variance Reduction In The Logistics Composite Model, George P. Cole Iii
Theses and Dissertations
The Logistics Composite Model (LCOM) is a stochastic, discrete-event simulation that relies on probabilities and random number generators to model scenarios in a maintenance unit and estimate optimal manpower levels through an iterative process. Models such as LCOM involving pseudo-random numbers inevitably have a variance associated with the output of the model for each run, and the output is actually a range of estimates. The reduction of the variance in the results of the model can be costly in the form of time for multiple replications. The alternative is a range of estimates that is too wide to realistically apply …
Networks And Cultural Bridges: A Case Study With The Tarahumara Of Northern Mexico, Jennifer Marie Nations
Networks And Cultural Bridges: A Case Study With The Tarahumara Of Northern Mexico, Jennifer Marie Nations
Theses and Dissertations
Network and cultural bridge theories predict the source and durability of cultural boundaries, including how cultural boundaries are overcome in order for differing groups to have meaningful exchanges. Ethnographic interview data with three research subjects in Northern Mexico reveals the strengths and weaknesses of each theory. Minita Bustillos, Juan Daniel Villalobos, and Horacio Echeverría contribute to bridging ties between the closed indigenous community of the Tarahumara and outside Mexican and American groups. Their positions elucidate the veracity of theoretical propositions found in network and cultural bridge theories. Findings suggest that though useful in understanding several aspects of network structure and …
Fresh Water Ecology Unit For Secondary Education Science Courses, Eric L. Hyer
Fresh Water Ecology Unit For Secondary Education Science Courses, Eric L. Hyer
Theses and Dissertations
Science means “to know", a process for gaining knowledge and an understanding of the natural world. Students need to be involved in active learning. In other words, they must do science, not just hear about it. Good science encourages students to gain knowledge by doing science: observing, questioning, exploring, making and testing hypotheses, comparing predictions, evaluating data, and communicating conclusions. This unit plan is designed to incorporate the components of fresh water, ecology, water quality, and a class-wide science project. Each lesson addresses selected standards from the state core curriculum and has specific objectives that are tied to the learning …
Analyses Of Greater Sage-Grouse (Centrocercus Urophasianus) Translocation Release Methods And Chick Survival In Strawberry Valley, Utah, Jordan P. Hennefer
Analyses Of Greater Sage-Grouse (Centrocercus Urophasianus) Translocation Release Methods And Chick Survival In Strawberry Valley, Utah, Jordan P. Hennefer
Theses and Dissertations
Manuscript No. 1 Recent research has indicated that low nest success and juvenile survival of Greater Sage-Grouse may be responsible for population declines. Recent technological advances in micro-transmitters have made radio-telemetry studies on Sage-Grouse chicks more common. Radio-telemetry enables monitoring of individual chicks and broods during a critical period of their life history. The exact cause of low chick recruitment in Strawberry Valley has not been well understood. In 2006, a chick mortality study using micro-transmitters was initiated to (1) determine the causes of chick mortality, (2) calculate overall chick survival, (3) compare chick survival in the Strawberry Valley population …
Decision Analysis With Value Focused Thinking As A Methodology To Select Building For Deconstruction, Erika E. Maiorano
Decision Analysis With Value Focused Thinking As A Methodology To Select Building For Deconstruction, Erika E. Maiorano
Theses and Dissertations
The purpose of this research was to examine the reuse and recycling of building materials on Wright-Patterson Air Force Base. There are a variety of conflicting factors concerning the removal of a building and the model quantitatively evaluates alternatives with respect to the decision maker’s values. The research questions were addressed with both a comprehensive literature review as well as the implementation of the value focused thinking methodology. The model found that the temporary living facilities are the alternatives that achieve the highest value. The result of this research effort was a value model that aids decision makers in identifying …
Calibration Procedure For A Microscopic Traffic Simulation Model, Carole Turley
Calibration Procedure For A Microscopic Traffic Simulation Model, Carole Turley
Theses and Dissertations
The inputs to a microscopic traffic simulation model generally include quantitative, but immeasurable data describing driver behavior and vehicle performance characteristics. Engineers often use default values for parameters such as car-following sensitivity and gap acceptance because it can be difficult to obtain accurate estimates for these parameters. While recent research has indicated that the accuracy of a simulation model can significantly improve if driver behavior parameters are calibrated to local data, this is not a typical practice. Manual calibration of these parameters is often too time-consuming to be cost-effective. Researchers have applied automated calibration procedures using genetic algorithms to these …
Adaptive Gravitational Gossip In Monitoring The Joint Battlespace Infosphere, Edmund Descartes Aban
Adaptive Gravitational Gossip In Monitoring The Joint Battlespace Infosphere, Edmund Descartes Aban
Theses and Dissertations
Future USAF operations will be heavily dependent on having the "right information" at the "right time," and Joint Battlespace Infospheres (JBIs) are poised to fill that role. To do this, JBIs must be ubiquitous -- always accessible, secure and responsive. Of all the literature written regarding JBIs, the most important problem to solve in order to make JBIs work in mobile scenarios are scalability, reliability and adaptability to changing battlefield conditions. This paper explores the use of SBCast, a novel adaptive probabilistic protocol and a delivery mechanism for JBI updates and as a possible solution towards guaranteeing these qualities. It …
Structure And Nitrogen Chemistry In Coal, Biomass, And Cofiring Low-Nox Flames, Bradley David Damstedt
Structure And Nitrogen Chemistry In Coal, Biomass, And Cofiring Low-Nox Flames, Bradley David Damstedt
Theses and Dissertations
Addressing global climate change will require increasing sustainable energy usage. Cofiring biomass fuels with coal for electrical power generation is an efficient, cost effective method of CO2 mitigation. This work is an experimental investigation of the flame structure and nitrogen chemistry differences occurring between coal, biomass and cofiring flames. A pilot-scale facility was fired with a dual-feed low-NOx burner capable of independently conveying 2 separate fuels unblended to the burner. Spatially detailed gas species measurements were made for 8 flames, including a coal, straw, finely ground straw, wood, and 4 straw/coal cofiring flames. Particle samples were also obtained from 5 …
Pyridinium Bis-Retinoids: Extraction, Synthesis, And Folate Coupling, Mary Allison Alvarez
Pyridinium Bis-Retinoids: Extraction, Synthesis, And Folate Coupling, Mary Allison Alvarez
Theses and Dissertations
This thesis is divided into two parts.Part I describes the organic extraction, separation, and liquid chromatographic-mass spectrometric analysis of chromophores from human and bovine retinal pigment epithelium. Flurorophores in the retinal pigment epithelium have been implicated in age related macular degeneration. In addition, the synthesis and characterization of a number of bis-retinoid type compounds that may potentially be found in such extracts, or that may be used for insight into pyridinium bis-retinoid reactivity, was accomplished.Part II describes a study of pyridinium bis-retinoid-folic acid coupling with respect to linker type, linker length, and nature of the linkage. Folic acid has been …
High Resolution Mesoscale Weather Data Improvement To Spatial Effects For Doserate Contour Plot Predictions, Christopher P. Jones
High Resolution Mesoscale Weather Data Improvement To Spatial Effects For Doserate Contour Plot Predictions, Christopher P. Jones
Theses and Dissertations
Reanalysis weather data is obtained for dates surrounding historical nuclear tests and processed through Regional Atmospheric Modeling System (RAMS) software to produce a high-resolution weather forecast. Output from RAMS is visualized to check for validity and input into Hazard Prediction and Assessment Capability (HPAC) software and modeled predictions are compared to historical observation data. Simulations are conducted using constant high resolution weather and varying terrain resolution. The HPAC prediction is numerically compared to historical observation data. The result of this research culminated in the knowledge that early-time, low-altitude wind data was neglected by HPAC's incorporation of the Defense Land Fallout …
The Role Of Prolactin In Ccl28 Regulation, Jennie Hyde
The Role Of Prolactin In Ccl28 Regulation, Jennie Hyde
Theses and Dissertations
Infants are born with naive immune systems, making them susceptible to a variety of infections. In order to protect the newborn infant it is important that mothers be able to pass protective IgA antibodies to their infants through breast milk. B cells that produce IgA enter the mammary tissue during lactation and secrete IgA into the milk. During pregnancy, the mammary tissue expresses high levels of chemokines, molecules that allow lymphocytes to selectively home to specific tissues. The chemokine CCL28 has been shown to be upregulated during both pregnancy and lactation, and is vital for the ability of IgA-producing B …
Stylized Hatching For 3d Animation, Trent Fielding Crow
Stylized Hatching For 3d Animation, Trent Fielding Crow
Theses and Dissertations
Much research has been done in creating non-photorealistic renderings of objects that mimic the look of hand-made drawings by traditional artists. This thesis extends work in this area by presenting an NPR hatching method that can be applied to 3D animated films to help them feel more hand drawn. In contrast to most other NPR methods, this method preserves the 3D lighting and effects of the film that make it interesting to watch. This process includes a procedural algorithm to create a hatching pattern that can be easily integrated into any film's pipeline that uses Renderman. In addition, we create …
Microbial Degradation Of Fuel Oxygenates Under Aerobic Conditions, John M. Dietz
Microbial Degradation Of Fuel Oxygenates Under Aerobic Conditions, John M. Dietz
Theses and Dissertations
This research determined the rate and extent of aerobic biodegradation of fuel oxygenates ethyl tert butyl ether (ETBE), tert amyl methyl ether (TAME), and ethyl alcohol (ethanol). Biodegradation was measured using gas chromatography (GC), respirometry, and biochemical oxygen demand (BOD) tests. Additionally, the research determined the effects of toluene on degradation rates. This microcosm study used a microbial consortium obtained from a petroleum refinery wastewater treatment facility. Respirometry data were collected from chambers containing pure oxygenates, or oxygenate/toluene mixtures. Samples were withdrawn periodically for GC analysis. Aerobic conditions were maintained in the chambers at all times. The five-day BOD test …
Diffusion Of Innovation: Factors Promoting Interest In Solar Photovoltaic Generation Systems Within Air Force Installations, Daniel Diaz Jr.
Diffusion Of Innovation: Factors Promoting Interest In Solar Photovoltaic Generation Systems Within Air Force Installations, Daniel Diaz Jr.
Theses and Dissertations
The purpose of this research was to identify factors which promote interest in solar photovoltaic generation systems for facility use within the United States Air Force. The construct model was developed based on past literature on Diffusion of Innovation Theory. The model comprised of measures defined as motivation, knowledge, experience, and familiarity as well as contextual variables. These measures were then used to determine whether any significant association existed between the measures and the overall dependent variable, interest. A phone interview was conducted on Air Force energy managers located within the continental U.S. The methods of correlation and regression analysis …
Quantification Of Risk For Usaf Fire And Emergency Services Flights As A Result Of Shortage In Manpower, Timothy D. Dalby
Quantification Of Risk For Usaf Fire And Emergency Services Flights As A Result Of Shortage In Manpower, Timothy D. Dalby
Theses and Dissertations
The United States Air Force (USAF) is currently experiencing a period of high operations tempo and overseas deployments have become frequent. These deployments will leave home installations short manned. Some amount of risk is incurred by the home installation as a result of the short manning. For an organization, such as an USAF Fire and Emergency Services (FES) flight, whose primary responsibility is the protection of life and property, the incurred risk could be catastrophic. Still no attempt has been made to quantify risk in terms of manpower for the USAF FES flights. The primary purpose of this research was …
Automatic Target Recognition User Interface Tool, David A. Kerns
Automatic Target Recognition User Interface Tool, David A. Kerns
Theses and Dissertations
A computer tool to aid in selecting the best Automatic Target Recognition (ATR) algorithm is developed. The program considers many quantifiers, accepts user-defined parameters, allows for changes in the operational environment and presents results in a meaningful way. It is written for Microsoft Excel. An ATR algorithm assigns a class label to a recognized target. General designations can include "Friend" and "Foe." The error of designating "Friend" as "Foe" as well as "Foe" as "Friend" comes with a high cost. Studying each algorithm's error can minimize this cost. Receiver Operating Characteristic (ROC) curves provide only information on the probabilities given …
Using Value-Focused Thinking To Evaluate The Use Of Innovative Stormwater Management Technologies On Air Force Installations, Jeffrey T. Falcone
Using Value-Focused Thinking To Evaluate The Use Of Innovative Stormwater Management Technologies On Air Force Installations, Jeffrey T. Falcone
Theses and Dissertations
Stormwater runoff occurs naturally after every storm event; however, traditional development practices have created many impervious surfaces, such as buildings, parking lots, and streets that increase runoff volume and flow rate. Conventional stormwater management practices focus on collecting runoff into centralized channels and conveying it as quickly as possible to local bodies of water. This type of conveyance system decreases the opportunity for stormwater to naturally infiltrate back into the ground. It also prevents contaminants from being naturally filtered out of stormwater flows. As a result, centralized conveyance systems can cause flooding, erosion, and terrestrial and aquatic habitat degradation. Innovative …
Experimental Methods To Characterize Nonlinear Vibration Of Flapping Wing Micro Air Vehicles, Adam P. Tobias
Experimental Methods To Characterize Nonlinear Vibration Of Flapping Wing Micro Air Vehicles, Adam P. Tobias
Theses and Dissertations
For urban combat reconnaissance, the flapping wing micro air vehicle concept is ideal because of its low speed and miniature size, which are both conducive to indoor operations. The focus of this research is the development of experimental methods best suited for the vibration testing of the wing structure of a flapping wing micro air vehicle. This study utilizes the similarity of a beam resonating at its first bending mode to actual wing flapping motion. While computational finite element analysis based on linear vibration theory is employed for preliminary beam sizing, an emphasis is placed on experimental measurement of the …
Effects Of Prior Aging At Elevated Temperature In Air And In Argon Environments On Creep Response Of Pmr-15 Neat Resin, Joseph L. Broeckert
Effects Of Prior Aging At Elevated Temperature In Air And In Argon Environments On Creep Response Of Pmr-15 Neat Resin, Joseph L. Broeckert
Theses and Dissertations
Creep behavior of PMR-15 neat resin, a polyimide thermoset polymer, aged in air or argon gaseous environments at 288 °C for up to 1000 h was evaluated. Creep tests were performed at 288 C at creep stress levels of 20 and 10 MPa. Creep periods of at least 25 h in duration were followed by recovery at zero stress. Weight loss and growth of the oxidation layer were also monitored and correlated with aging time. The aging time in both air and argon environments had a strong influence on the creep and recovery response of PMR-15 neat resin. Samples aged …