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Development Of The Characteristics Of Science Questionnaire (Csq): Assessing Student Knowledge Of The Utah State Secondary Science Core Intended Learning Outcome 6 On The Nature Of Science, Bradford N. Talbert Sep 2007

Development Of The Characteristics Of Science Questionnaire (Csq): Assessing Student Knowledge Of The Utah State Secondary Science Core Intended Learning Outcome 6 On The Nature Of Science, Bradford N. Talbert

Theses and Dissertations

Teaching students about the nature of science is an important and necessary part of secondary science curricula. The Utah State Office of Education has provided specific guidelines called intended learning outcomes (ILOs) to teachers in the state. The ILOs are based on the national standards presented in the Project 2061 publications of the American Association for the Advancement of Science in 1990 and 1993. The ILOs are not tied to any one scientific discipline such as biology or chemistry, but are intended as global statements describing what scientists do and how scientific knowledge is gained. ILO 6 prescribes that students …

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Byu Adds "Zing" To New Carbonated Yogurt Product In Stores Nationwide, Byu News Sep 2007

Byu Adds "Zing" To New Carbonated Yogurt Product In Stores Nationwide, Byu News

Faculty Publications

A BYU professor invented the "zing" in General Mills' new carbonated yogurt product, now available in stores all over the country. Fizzix(TM), an extension of Yoplait's Go-GURT brand that comes in a tube, adds a tangy tingle to the traditional fruity flavor of yogurt that will "fizzify" the tongues of the 8- to 12-year-olds the company is targeting.

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Principles, Functions, And Concepts For Compliant Mechanically Reactive Armor Elements, Cameron S. Andersen Sep 2007

Principles, Functions, And Concepts For Compliant Mechanically Reactive Armor Elements, Cameron S. Andersen

Theses and Dissertations

There exists a great need for armor systems with greater mass efficiencies and ballistic limits. This thesis explores the development of a new field of armor capable of satisfying the increased demand for modern armor: Mechanically Reactive Armor or MRA. More specifically, the thesis focuses on Compliant MRA or CMRA. From the physics governing projectile-armor interactions, principles governing successful design of MRA are identified and presented. These principles or design approaches focus primarily on rejecting, minimizing, or absorbing the incoming projectile's kinetic energy. After identifying these principles, the specific mechanical functions required by the principles are isolated. These functions represent …

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Differential Item Functioning Analysis Of The Herrmann Brain Dominance Instrument, Jared Andrew Lees Sep 2007

Differential Item Functioning Analysis Of The Herrmann Brain Dominance Instrument, Jared Andrew Lees

Theses and Dissertations

Differential item functioning (DIF) is present when examinees who have the same level of a trait have a different probability of correctly answering a test item intended to measure that trait (Shepard & Averill, 1981). The following study is a DIF analysis of the Herrmann Brain Dominance Instrument (HBDI), a preference profiling instrument developed by Herrmann International to help individuals identify their dominant preferences and then classify their level of dominance into four preference quadrants. Examinees who completed the American English version of the instrument were classified as the reference group and examinees of the International English version were classified …

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Disclosure Of Abuse As A Moderating Variable For Internalized Shame In Adult Survivors Of Childhood Sexual Abuse, Ami Mariko Hood Frost Sep 2007

Disclosure Of Abuse As A Moderating Variable For Internalized Shame In Adult Survivors Of Childhood Sexual Abuse, Ami Mariko Hood Frost

Theses and Dissertations

Although previous research has established a correlation between childhood sexual abuse and internalized shame in adult survivors, very little research has been done to examine how disclosure affects that correlation. An adult female sample of survivors of childhood sexual abuse (N=467) were surveyed to determine a possible moderating effect of disclosure on internalized shame. It was predicted that 1) severity of abuse would be a significant predictor of internalized shame; 2) disclosure would be a significant predictor of internalized shame; and 3) disclosure would moderate the relationship between severity of abuse and internalized shame. Through structural equation modeling using AMOS, …

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Numerical Simulation Of Vortex Generating Jets In Zero And Adverse Pressure Gradients, Curtis Lynn Memory Sep 2007

Numerical Simulation Of Vortex Generating Jets In Zero And Adverse Pressure Gradients, Curtis Lynn Memory

Theses and Dissertations

Numerical simulations of particle image velocimetry (PIV) experiments conducted with vortex generating jets (VGJs) on a flat plate, at a Reynolds number based on plate length of 50,000, were performed for three flow conditions using a time-accurate hybrid Navier-Stokes solver. Time-averaged steady blowing of angled jets, subjected to a zero pressure gradient, yielded excellent agreement with the PIV data in terms of vortex formation and strength. Observed flow features include primary and secondary vortices, where the primary vortex eventually dominates the downstream region. A shell wall structure, created by smaller vortical structures surrounding the developing vortices, was also observed. A …

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Development Of A Method For Calculating Delta Scuti Rotational Velocities And Hydrogen Beta Color Indices, Tabitha Christi Buehler Sep 2007

Development Of A Method For Calculating Delta Scuti Rotational Velocities And Hydrogen Beta Color Indices, Tabitha Christi Buehler

Theses and Dissertations

To add to the understanding of the structure and evolution of Delta Scuti stars, 167 Delta Scutis north of -01 degrees declination and brighter than 13th magnitude have been observed spectroscopically. A method for calculating rotational velocity values and Hydrogen-Beta color indices for the stars in the data set with no previously published values is developed, using the stars in the data set brighter than 7th magnitude. Rotational velocity values for four stars with previously unknown values and Hydrogen-Beta index values for five stars with previously unknown values are calculated.

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Improving Neural Network Classification Training, Michael Edwin Rimer Sep 2007

Improving Neural Network Classification Training, Michael Edwin Rimer

Theses and Dissertations

The following work presents a new set of general methods for improving neural network accuracy on classification tasks, grouped under the label of classification-based methods. The central theme of these approaches is to provide problem representations and error functions that more directly improve classification accuracy than conventional learning and error functions. The CB1 algorithm attempts to maximize classification accuracy by selectively backpropagating error only on misclassified training patterns. CB2 incorporates a sliding error threshold to the CB1 algorithm, interpolating between the behavior of CB1 and standard error backpropagation as training progresses in order to avoid prematurely saturated network weights. CB3 …

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Electing Justice: Fixing The Supreme Court Nomination Process By Richard Davis., Tim Taylor Sep 2007

Electing Justice: Fixing The Supreme Court Nomination Process By Richard Davis., Tim Taylor

Sigma: Journal of Political and International Studies

No abstract provided.

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Vol. 25, Sigma: Journal Of Political And International Studies, Sigma: Journal Of Political And International Studies Sep 2007

Vol. 25, Sigma: Journal Of Political And International Studies, Sigma: Journal Of Political And International Studies

Sigma: Journal of Political and International Studies

No abstract provided.

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Beyond Democracy: The Effects Of The Electoral System Of Environmental Performance, Austin Baird, Rachel Bodily, Angela Merriam Sep 2007

Beyond Democracy: The Effects Of The Electoral System Of Environmental Performance, Austin Baird, Rachel Bodily, Angela Merriam

Sigma: Journal of Political and International Studies

No abstract provided.

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Why Democracies Still Have Corruption: A Quantitative Analysis Integrating Three Theoretical Frameworks, Richard I. Vigil Sep 2007

Why Democracies Still Have Corruption: A Quantitative Analysis Integrating Three Theoretical Frameworks, Richard I. Vigil

Sigma: Journal of Political and International Studies

No abstract provided.

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Promoting Peculiarity: Different Editions Of For The Strength Of Youth, Brent D. Fillmore Sep 2007

Promoting Peculiarity: Different Editions Of For The Strength Of Youth, Brent D. Fillmore

Religious Educator: Perspectives on the Restored Gospel

No abstract provided.

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The Dead Sea Scrolls: A Roundtable Discussion Celebrating The Sixtieth Anniversary Of Their Discovery, Part 1, Richard Neitzel Holzapfel, Donald W. Parry, Dana M. Pike, David Rolph Seely Sep 2007

The Dead Sea Scrolls: A Roundtable Discussion Celebrating The Sixtieth Anniversary Of Their Discovery, Part 1, Richard Neitzel Holzapfel, Donald W. Parry, Dana M. Pike, David Rolph Seely

Religious Educator: Perspectives on the Restored Gospel

No abstract provided.

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Adaptive Quaternion Control For A Miniature Tailsitter Uav, Nathan B. Knoebel Aug 2007

Adaptive Quaternion Control For A Miniature Tailsitter Uav, Nathan B. Knoebel

Theses and Dissertations

The miniature tailsitter is a unique aircraft with inherent advantages over typical unmanned aerial vehicles. With the capabilities of both hover and level flight, these small, portable systems can produce efficient maneuvers for enhanced surveillance and autonomy with little threat to surroundings and the system itself. Such vehicles are accompanied with control challenges due to the two different flight regimes. Problems with the conventional attitude representation arise in estimation and control as the system departs from level flight conditions. Furthermore, changing dynamics and limitations in modeling and sensing give rise to significant attitude control design challenges. Restrictions in computation also …

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Computer-Based Instruction For Engineering Education In The Developing World, Bradford G. Singley Aug 2007

Computer-Based Instruction For Engineering Education In The Developing World, Bradford G. Singley

Theses and Dissertations

Although civil engineers continually develop new ways to solve problems involving water, energy, infrastructure and environmental sustainability, these innovations can take years – or even decades – to reach developing countries. Computer-based instruction has the potential to dramatically decrease this lag time by improving engineering education in the developing world. This paper discusses the development of instructional simulations, based on the theory of model-centered instruction. These simulations can serve as self-paced learning modules, which can be accessed for free over the Internet. A pilot learning module was developed for the United Nations Educational Scientific and Cultural Organization (UNESCO) on the …

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Erring Knights Of Desire: The Romance In Santa Teresa's Libro De La Vida And Edmund Spenser's The Faerie Queene, Emily Marie Stanfill Aug 2007

Erring Knights Of Desire: The Romance In Santa Teresa's Libro De La Vida And Edmund Spenser's The Faerie Queene, Emily Marie Stanfill

Theses and Dissertations

This study explores how romance opens the texts of two sixteenth-century authors. The first is the autobiography, Libro de la vida, of Spanish nun, mystic, and reformer, Santa Teresa de Jésus. Amidst the narrative of her life and her instructions on how to better live the mystical life, Teresa uses the mode of romance to construct herself and God in complicated and often conflicting roles: she the wandering (sinning) knight-errant who quests towards the ideal lady, Christ; she the walled garden into which her lover enters for fleeting moments of bliss; she the passive feminine recipient of God's forceful loves; …

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Lateral Resistance Of Piles At The Crest Of Slopes In Sand, Artak Davit Mirzoyan Aug 2007

Lateral Resistance Of Piles At The Crest Of Slopes In Sand, Artak Davit Mirzoyan

Theses and Dissertations

Pile foundations near the crest of a slope are often required to resist lateral loads. This is particularly important for piles at the abutments of bridges. However, limited full-scale test data are available to indicate how the lateral resistance of a pile would be affected when it is located near the crest of a slope. To investigate the effect of a slope on lateral pile resistance, three full scale lateral load tests were conducted on an instrumented steel pipe pile. For the first test, the pile was laterally loaded in horizontal ground. For the second test the pile was at …

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Optimization Of Control Source And Error Sensor Locations In Free Field Active Noise Control, Connor Raymond Duke Aug 2007

Optimization Of Control Source And Error Sensor Locations In Free Field Active Noise Control, Connor Raymond Duke

Theses and Dissertations

Previous work has shown that active noise control (ANC) can be applied to axial cooling fans. Optimization of the control source and error sensor placement is desired to maximize the attenuation using ANC. A genetic algorithm was developed to find the optimal placement of control sources for a given primary source. The optimal configuration of control sources around a single primary source was shown to be a linear arrangement of the sources. This holds true for both two-dimensional as well as three-dimensional configurations. The higher-order radiation of the linear arrangement has also been verified experimentally, but the improvement in the …

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A Comparison Of Optimized Nonlinear Time History Analysis And The Equivalent Lateral Forces Method For Brace Design, Lukas Balling Aug 2007

A Comparison Of Optimized Nonlinear Time History Analysis And The Equivalent Lateral Forces Method For Brace Design, Lukas Balling

Theses and Dissertations

This thesis presents the development of a design procedure for buckling-restrained braced frames (BRBF's). This procedure uses nonlinear time history analysis and a formal optimization algorithm. The time history analysis includes an elasto-plastic model for the braces. The optimization algorithm is a genetic algorithm. This procedure is referred to throughout the thesis as the "Nonlinear Time History Analysis Procedure with Optimization" (NTHO). Current design specifications for BRBF's are based on inelastic design spectra and approximate formulas for the determination of natural period. These spectra are used to obtain seismic base shear, and the distribution of equivalent lateral forces. Yielding and …

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Plasma Volume And Albumin Mrna Expression In Exercise Trained Rats, Nathan Alex Bexfield Aug 2007

Plasma Volume And Albumin Mrna Expression In Exercise Trained Rats, Nathan Alex Bexfield

Theses and Dissertations

Introduction- Exercise-induced plasma volume (PV) expansion is typically associated with an increase in plasma albumin content. Increased hepatic albumin synthesis, a transcriptionally regulated process, is thought to contribute to the increase in albumin content. Objective- We tested the hypothesis that exercise training induces an increase in albumin gene expression in relationship to the increase in PV. Methods and Results- 40 adult male Sprague-Dawley rats weighing between 245-350 grams were randomly assigned to one of four groups: cage control (CC); sham exercise 10 min/day at 48% VO2max (NE); continuous exercise training, 60 min /day at 72% VO2max (LI); and high intensity, …

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Diverse Students' Perceptions Of Cultural Congruity And Environment At A University, Effie J. Thacker Aug 2007

Diverse Students' Perceptions Of Cultural Congruity And Environment At A University, Effie J. Thacker

Theses and Dissertations

The Culturally Responsive Special Education/English as a Second Language (ESL) program was designed to assist students from diverse backgrounds in being academically successful in a large western private university. Utilizing the Cultural Congruity Scale (CCS) and University Environment Scale (UES), this study analyzed the perceptions of 28 students who are ethnically diverse and enrolled in the Culturally Responsive Special Education/ESL Program. The data will be used to evaluate the program's success in addressing the barriers that have historically kept students who are ethnically diverse from succeeding in higher education. Participating students completed CCS and UES surveys questioning their perceptions regarding …

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Development Of A New Ca Ii H And K Spectrophotometric Temperature Index, Kathleen Elizabeth Moncrieff Aug 2007

Development Of A New Ca Ii H And K Spectrophotometric Temperature Index, Kathleen Elizabeth Moncrieff

Theses and Dissertations

We are developing a new spectrophotometric temperature index based on the Ca II H and K lines. Because these lines are present even in very cool stars and because the Ca II H line is blended with the H-epsilon line in hot stars, this index should cover a very broad range of spectral types. Our data set consisted of 95 stars with spectral types ranging from O9 to M1. We examined five different indices based on the Ca II H + H-epsilon and K lines, as well as single-wavelength indices centered on each of the H-delta and H-gamma lines, which …

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Testing The Assumption Of Sample Invariance Of Item Difficulty Parameters In The Rasch Rating Scale Model, Joseph A. Curtin Aug 2007

Testing The Assumption Of Sample Invariance Of Item Difficulty Parameters In The Rasch Rating Scale Model, Joseph A. Curtin

Theses and Dissertations

Rasch is a mathematical model that allows researchers to compare data that measure a unidimensional trait or ability (Bond & Fox, 2007). When data fit the Rasch model, it is mathematically proven that the item difficulty estimates are independent of the sample of respondents. The purpose of this study was to test the robustness of the Rasch model with regards to its ability to maintain invariant item difficulty estimates when real (data that does not perfectly fit the Rasch model), polytomous scored data is used. The data used in this study comes from a university alumni questionnaire that was collected …

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Ontology Aware Software Service Agents: Meeting Ordinary User Needs On The Semantic Web, Muhammed Jassem Al Muhammed Aug 2007

Ontology Aware Software Service Agents: Meeting Ordinary User Needs On The Semantic Web, Muhammed Jassem Al Muhammed

Theses and Dissertations

To achieve the dream of the semantic web, it must be possible for ordinary users to invoke services. It is clear that users need simple-to-invoke-and-use services. This dissertation offers an ontological approach to declaratively create services that users can invoke using free-form, natural-language-like specifications. Our approach uses task ontologies as foundational knowledge. A task ontology consists of a domain ontology and a process ontology. The domain ontology encodes domain information such as possible constraints and instances in terms of object sets, relationship sets among these object sets, and operations over values in object sets and relationship sets. The process ontology …

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Volunteerism And Marital Quality Among Lds Senior Missionary Couples, Megan Oka Aug 2007

Volunteerism And Marital Quality Among Lds Senior Missionary Couples, Megan Oka

Theses and Dissertations

Although research has been conducted on marriage and volunteerism in later life, little is known about the impact of volunteerism on marital quality, particularly intense volunteer experiences. Missionary couples for the Church of Jesus Christ of Latter-day Saints (LDS) leave their homes for a period ranging from 6-18 months and dedicate the majority of their time to working in church assignments. Qualitative interviews were collected from couples who had served senior couples missions for the LDS Church and returned home in the last year. The mean age of participants was 69, and the mean length of marriage for couples was …

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Two-Dimensional Modeling Of Ap/Htpb Utilizing A Vorticity Formulation And One-Dimensional Modeling Of Ap And Adn, Matthew L. Gross Aug 2007

Two-Dimensional Modeling Of Ap/Htpb Utilizing A Vorticity Formulation And One-Dimensional Modeling Of Ap And Adn, Matthew L. Gross

Theses and Dissertations

This document details original numerical studies performed by the author pertaining to the propellant oxidizer, ammonium perchlorate (AP). Detailed kinetic mechanisms have been utilized to model the combustion of the monopropellants AP and ADN, and a two-dimensional diffusion flame model has been developed to examine the flame structure above an AP/HTPB composite propellant. This work was part of an ongoing effort to develop theoretically based, a priori combustion models. The improved numerical model for AP combustion utilizes a “universal” gas-phase kinetic mechanism previously applied to combustion models of HMX, RDX, GAP, GAP/RDX, GAP/HMX, NG, BTTN, TMETN, GAP/BTTN, and GAP/RDX/BTTN. The …

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High-Speed Data Acquisition And Fpga Detected Pulse Blanking System For Interference Mitigation In Radio Astronomy, Micah Alexander Lillrose Aug 2007

High-Speed Data Acquisition And Fpga Detected Pulse Blanking System For Interference Mitigation In Radio Astronomy, Micah Alexander Lillrose

Theses and Dissertations

Radio astronomy is the discipline dedicated to the study of celestial emissions in the radio band from a few MHz to 300 GHz. In recent years, spurious emissions from man-made devices that operate at these frequencies have made detection of astronomical signals difficult. These harmful RF transmissions are called radio frequency interference (RFI). One strategy to remove RFI is to apply spatial filtering using an array antenna. This thesis documents the development of a high-speed data acquisition system used to record data from 7- and 19-element phased array feeds. The system supports synchronous sampling over all channels and streams data …

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Design And Fabrication Of Out-Of-Plane Silicon Microneedles With Integrated Hydrophobic Microchannels, Michael S. Diehl Aug 2007

Design And Fabrication Of Out-Of-Plane Silicon Microneedles With Integrated Hydrophobic Microchannels, Michael S. Diehl

Theses and Dissertations

Microfabricated needles have the potential for inexpensive drug delivery without pain. The ability to deliver medication painlessly to patients will someday be not just hoped for but expected by the general public. The commercialization of this technology will also lead to other valuable technologies, such as systems that continually monitor and control insulin or other drugs in diabetic patients. This research presents fabrication procedures developed to produce pyramidal-shaped microneedles with microchannels that will allow for fluid delivery. The microchannels are etched into the substrate surface of a [100] silicon wafer using inductively coupled plasma etching. After the channel etch a …

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Arlecchino's Journey: Crossing Boundaries Through La Commedia Dell'arte, Janine Michelle Sobeck Aug 2007

Arlecchino's Journey: Crossing Boundaries Through La Commedia Dell'arte, Janine Michelle Sobeck

Theses and Dissertations

La commedia dell'arte is a recognized, vibrant theatrical form that emerged in Italy during the Renaissance. However, while great attention has been given to the particulars of the genre (performance techniques, important troupes, leading players), there lacks a study behind the reasoning for its vast international popularity. In this thesis, I explore why this particular genre was able to cross cultural and linguistic boundaries, finding a dedicated and enthusiastic following in most European countries for over 200 years. After analyzing commedia dell'arte's original development in the Italian peninsula, examining the predominating Carnival ideology and the ability of the troupes to …

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