Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Brigham Young University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 16441 - 16470 of 19131

Full-Text Articles in Entire DC Network

Applying Toulmin's Argumentation Framework To Explanations In A Reform Oriented Mathematics Class, Jennifer Alder Brinkerhoff Jul 2007

Applying Toulmin's Argumentation Framework To Explanations In A Reform Oriented Mathematics Class, Jennifer Alder Brinkerhoff

Theses and Dissertations

This study looks at conceptual explanations given in a reform-oriented mathematics class for preservice secondary mathematics teachers and extends Toulmin's argumentation framework to account for some of the complexities of the explanations given by these students. This study explains the complexities that arose in applying Toulmin's framework to explanations and extends the framework by accounting for the features of conceptual explanations. The complexities of these explanations are that they are made up of multiple arguments that build on each other to reach a final conclusion and that they are also dependant upon the social aspects of the class in which …

Go to article

Or Best Offer: A Privacy Policy Negotiation Protocol, Daniel David Walker Jul 2007

Or Best Offer: A Privacy Policy Negotiation Protocol, Daniel David Walker

Theses and Dissertations

Users today are concerned about how their information is collected, stored and used by Internet sites. Privacy policy languages, such as the Platform for Privacy Preferences (P3P), allow websites to publish their privacy practices and policies in machine readable form. Currently, software agents designed to protect users' privacy follow a "take it or leave it" approach when evaluating these privacy policies. This approach is inflexible and gives the server ultimate control over the privacy of web transactions. Privacy policy negotiation is one approach to leveling the playing field by allowing a client to negotiate with a server to determine how …

Go to article

Pipe Diagrams For Thompson's Group F, Aaron L. Peterson Jul 2007

Pipe Diagrams For Thompson's Group F, Aaron L. Peterson

Theses and Dissertations

We review the definition and standard description of Thompson's Group F. We define the set of pipe diagrams and show that this set forms a group isomorphic to F. We use pipe diagrams to prove two theorems about giving a minimal representation for an arbitrary element of F.

Go to article

Vocal Efficiency In Trained Singers Vs. Non-Singers, Kristi Sue Fulton Jul 2007

Vocal Efficiency In Trained Singers Vs. Non-Singers, Kristi Sue Fulton

Theses and Dissertations

Vocal efficiency is a measure of the efficiency of the energy conversion process from aerodynamic power to acoustic power. Few studies have been conducted to measure vocal efficiency in trained singers to determine whether "vocal athletes" are more efficient than non-singers. Data were collected from 20 trained singers (10 male and 10 female) and 20 non-singers (10 male and 10 female) to determine if there were any significant differences between the two groups. During the recording, each participant produced a series of syllables at combinations of three different levels of pitch and loudness. The acoustic and aerodynamic data were analyzed …

Go to article

The Development Of Ready-A (Ready For Adolescents): An Adolescent Premarital Education Inventory, Lorinda A. Gutierrez Jul 2007

The Development Of Ready-A (Ready For Adolescents): An Adolescent Premarital Education Inventory, Lorinda A. Gutierrez

Theses and Dissertations

Learning about romantic relationships can be one of the central features of adolescence. However, there are not many useful and scholarly tools for adolescents to evaluate themselves and their relationship competence. Such tools can be helpful in the premarital education process. READY is a premarital assessment questionnaire instrument that is used for such purposes but it was designed for use with adults ages 18 and over. In this study READY for Adolescents (READY-A) was developed as a revision and extension of READY with age-appropriate questions to be used with adolescents. A review of literature on adolescent romantic relationships and factors …

Go to article

Development Of A Mevva Based Beryllium-7 Plasma Source, David K. Olson Jul 2007

Development Of A Mevva Based Beryllium-7 Plasma Source, David K. Olson

Theses and Dissertations

We have designed a new type of plasma gun ion source for a Malmberg-Penning trap based on Metal Vapor Vacuum Arc (MeVVA) ion source designs. Our primary intent with this MeVVA-type source is to create a confinable beryllium-7 (7-Be) plasma. 7-Be is a peculiar isotope due to its varying radioactive decay half-life in different electro-chemical configurations. It is also found in an unexpected abundance at high altitudes of the Earth's atmosphere. It is possible ioniziation affects the radioactivity of the isotope, partly explaining this discrepancy with atmospheric models. The short half-life of 7-Be requires us to replace the sample inside …

Go to article

Libertas Reborn: A Legend Of Florence And Leigh Hunt's Literary Revival, Adrianne Gardner Malan Jul 2007

Libertas Reborn: A Legend Of Florence And Leigh Hunt's Literary Revival, Adrianne Gardner Malan

Theses and Dissertations

According to traditional accounts, following the premature deaths of Keats, Shelley, and Byron in the 1820s, literature in England fell into a sort of slumber until the late 1830s and early 1840s, when a new generation-a generation we now call the Victorians-came on the scene. Literary scholarship has tended to ignore this period of slumber as an uninteresting gap between the two dynamic movements of Romanticism and Victorianism. It was during this transitional period, however, that Leigh Hunt, one of the most radical of Romantic figures, wrote and staged A Legend of Florence (1840) in an attempt to stimulate a …

Go to article

Joseph Smith's View Of His Own Calling, Tucker John Boyle Jul 2007

Joseph Smith's View Of His Own Calling, Tucker John Boyle

Theses and Dissertations

The Prophet Joseph Smith stood in a unique position as the leader of The Church of Jesus Christ of Latter-day Saints. He held positions of translator, prophet, seer and revelator. He was taught the responsibilities of his calling as he translated ancient scripture - the Book of Mormon and the Bible. He was further instructed concerning his calling as he received revelations contained in the Doctrine and Covenants. This study examines scriptural passages that surely influenced the Prophet's understanding of his own calling. It then illustrates Joseph Smith's view of his calling as evidenced by statements in his writings and …

Go to article

The Impact Of Video Self-Modeling On Conversational Skills With Adolescent Students With Severe Disabilities, Megan Elizabeth Sangster Jul 2007

The Impact Of Video Self-Modeling On Conversational Skills With Adolescent Students With Severe Disabilities, Megan Elizabeth Sangster

Theses and Dissertations

Video self-modeling has been found to be effective in increasing appropriate behaviors, increasing task fluency, and decreasing inappropriate behaviors. During video self-modeling, a student is filmed completing a task and then mistakes, prompts, and negative behaviors are edited from the video. When the edited video is viewed by the subject student, the student views a perfect model of him or herself successfully completing the given task. Video self-modeling has been used predominately with participants with autism spectrum disorder. This study is a replication of a previous study in which the effectiveness of video self-modeling and video peer modeling was compared …

Go to article

Loneliness And Use Of Coping Mechanisms Among U.S. Military Personnel Deployed To The Middle East, David Abraham Shwalb Jul 2007

Loneliness And Use Of Coping Mechanisms Among U.S. Military Personnel Deployed To The Middle East, David Abraham Shwalb

Theses and Dissertations

Considering that the greatest fear of deploying military personnel is separation from family, an obvious and overlooked psychological phenomenon that merits further investigation is loneliness. In this study, 131 US troops completed the UCLA Loneliness Scale, Anxiety Control Questionnaire, and a leisurely activity participation scale to predict loneliness with participation in non-work activities in the presence of another moderator (locus of control) and various demographic factors. As hypothesized, the results indicated that 1) the best non-work activity predictors of loneliness were emailing friends and listening to music, 2) external locus of control was positively correlated with loneliness and internal locus …

Go to article

The Development Of A Literacy Curriculum For Adult Liberian Refugees, Kristen Marie Kohler Jul 2007

The Development Of A Literacy Curriculum For Adult Liberian Refugees, Kristen Marie Kohler

Theses and Dissertations

From 2003 to 2006, Tucson, Arizona became the new home of many Liberian refugees. Because of civil war in their homeland and ensuing years spent in refugee camps, these refugees had not had many opportunities for literacy development. Tucson had several literacy and ESL programs available; however, none of these programs was meeting the Liberians' particular needs. For my project, I designed and implemented a literacy curriculum for the Liberian refugees in Tucson. In preparation for developing my curriculum, I not only took coursework but also thoroughly reviewed the literature on literacy learning and instruction for first language learners, second …

Go to article

The Media Production Experience: A Phenomenological Study Of Student Media Production In A Secondary Education Environment, Brian N. Saxton Jul 2007

The Media Production Experience: A Phenomenological Study Of Student Media Production In A Secondary Education Environment, Brian N. Saxton

Theses and Dissertations

Many media education researchers have pointed out the benefits of incorporating a production element into a media literacy program. In fact, the simple use of the word “literacy" alludes to both critical analysis of (“reading") media and creative expression through (“writing") media. However, many of those same researchers have found that there are serious difficulties with student media production from a practical standpoint. The lack of equipment, the lack of class time, poor educator training, and the possibility that students may produce school-inappropriate or offensive texts create doubts about whether or not the effort is worth the reward. This qualitative, …

Go to article

Regulation Of Lkb1-Strad-Mo25 Complex Expression And Activation Of Ampk In Skeletal Muscle By Thyroid Hormone, Devon Jack Branvold Jul 2007

Regulation Of Lkb1-Strad-Mo25 Complex Expression And Activation Of Ampk In Skeletal Muscle By Thyroid Hormone, Devon Jack Branvold

Theses and Dissertations

AMP-activated protein kinase (AMPK), a heterotrimeric protein which serves as a metabolic master switch in skeletal muscle, is a research target for the pharmaceutical treatment and prevention of type 2 diabetes. The expression of all of the isoforms of the subunits of AMPK and AMPK activity are increased in skeletal muscle tissue of hyperthyroid rats. Activity of AMPK is regulated by an upstream kinase (AMPKK). The LKB1-STRAD-MO25 complex is a major AMPKK in skeletal muscle. This experiment was designed to determine whether the increase in AMPK activity is accompanied by a thyroid hormone-induced increase in the expression of the LKB1-STRAD-MO25 …

Go to article

The Effect Of Language Ability Of Internalizing Students On Improvement In Strong Kids: A Social And Emotional Learning Curriculum For Students In Grades 4-8, Shelby Carrera Hansen Jul 2007

The Effect Of Language Ability Of Internalizing Students On Improvement In Strong Kids: A Social And Emotional Learning Curriculum For Students In Grades 4-8, Shelby Carrera Hansen

Theses and Dissertations

This study assessed the influence of language on the ability of children identified as being at risk for internalizing behavior disorders to successfully participate in a social skills intervention program. Fourth and fifth grade students participated in Strong Kids: A Social and Emotional Learning Curriculum in Grades 4-8, a program which promotes emotional resiliency. The Clinical Evaluation of Language Fundamentals-Fourth Edition (CELF-4) and Children's Communication Checklist-Second Edition (CCC-2) were both completed to obtain a global language score and pragmatic language score. The Teacher's Report Form (TRF), a shortened 10-item version of the Internalizing Student Symptom Scale (ISSC), and a 20-item …

Go to article

The Impact Of Vocal Function Exercises On Normal Voice Production, Karen Hart Thomas Jul 2007

The Impact Of Vocal Function Exercises On Normal Voice Production, Karen Hart Thomas

Theses and Dissertations

This study attempted to replicate and expand previously published research in order to increase our understanding of how Vocal Function Exercises (VFE) might improve vocal function in normal voices. Measures were made to reflect potential post-treatment changes in acoustic and aerodynamic variables, including a measure of vocal efficiency. The participants of the study included 35 adults with normal voices. Each completed a series of speech tasks (sustained vowels, maximum phonation time, reading of a standardized passage, and repetition of syllable strings) before and after a four-week treatment period. Testing of pre- and post-treatment data revealed no clear improvement in acoustic …

Go to article

A Modified Cluster-Weighted Approach To Nonlinear Time Series, Mark Ballatore Lyman Jul 2007

A Modified Cluster-Weighted Approach To Nonlinear Time Series, Mark Ballatore Lyman

Theses and Dissertations

In many applications involving data collected over time, it is important to get timely estimates and adjustments of the parameters associated with a dynamic model. When the dynamics of the model must be updated, time and computational simplicity are important issues. When the dynamic system is not linear the problem of adaptation and response to feedback are exacerbated. A linear approximation of the process at various levels or “states” may approximate the non-linear system. In this case the approximation is linear within a state and transitions from state to state over time. The transition probabilities are parametrized as a Markov …

Go to article

Chateaubriand's René As A Philosophical Reaction To The Enlightenment And Early Romantic Sentiment, Christopher Martin Flood Jul 2007

Chateaubriand's René As A Philosophical Reaction To The Enlightenment And Early Romantic Sentiment, Christopher Martin Flood

Theses and Dissertations

For over 200 years “René&rqduo; Chateaubriand's short fictional interlude in his grand argument for the restoration of Christianity after the French Revolution, has been read as the founding text of the French Romantic movement. While this text did in fact serve to define many of the characteristics of French Romantic literature, simply labeling it as such is anachronistic and obscures the more profound philosophical and theological claims Chateaubriand was actually attempting to illustrate. After an examination of the discrepancy between the author's intentions and the general perception, this study will briefly consider some of the traditional readings of “René” specifically …

Go to article

Comparing The Feasibility Of Cutting Thin-Walled Sections From Five Commonly Used Metals Utilizing Wire Electric Discharge Machining, Richard C. Stephenson Jul 2007

Comparing The Feasibility Of Cutting Thin-Walled Sections From Five Commonly Used Metals Utilizing Wire Electric Discharge Machining, Richard C. Stephenson

Theses and Dissertations

Wire Electric Discharge Machining (wire-EDM) is a non-traditional machining process. Controlled electric sparks are successively used to vaporize part of a workpiece along a programmed path in order to machine a desired part. Because there is no tool that comes in direct contact with the workpiece, it is possible to machine thin, delicate parts. This thesis was designed to observe and analyze the differences in cutting capabilities for a conventional wire-EDM machine when cutting thin-walled sections from five commonly used metals utilizing a variation of roughing and finishing passes. The five metals that were used in this study are: Aluminum …

Go to article

Compilation And Generation Of Multi-Processor On A Chip Real-Time Embedded Systems, Randall S. Klingler Jul 2007

Compilation And Generation Of Multi-Processor On A Chip Real-Time Embedded Systems, Randall S. Klingler

Theses and Dissertations

Current FPGA technology has advanced to the point that useful embedded System-on-Programmable-Chips (SoPC)s can now be designed. The Real Time Processor (RTP) project leverages the advances in FPGA technology with a system architecture that is customizable to specific real-time applications. The design and implementation of the framework for architecting such a system from ANSI-C code is presented. The Small Device C Compiler (SDCC) was retargeted to the RTP architecture and extended to produce a generator directive file. The RTPGen hardware generator was created to consume the directive file and produce a highly customized top-level structural VHDL file that can be …

Go to article

Synthesis And Antiviral Evaluation Of Some 3'-Carboxymethyl-3'-Deoxyadenosine Derivatives, Houguang Shi Jul 2007

Synthesis And Antiviral Evaluation Of Some 3'-Carboxymethyl-3'-Deoxyadenosine Derivatives, Houguang Shi

Theses and Dissertations

3'-Carboxymethyl-3'-deoxyadenosine derivatives were prepared from 2'-O-TBDMS-3'-deoxy-3'-[(ethoxycarbonyl)methyl]adenosine (1) via simple and efficient procedures. Conversion of 1 to 5'-azido-2'-O-TBDMS-3', 5'-dideoxy -3'-[(ethoxycarbonyl) methyl] adenosine (4) was accomplished via a novel one-pot method employing 5'-activation (TosCl) followed by efficient nucleophilic displacement with tetramethylguanidinium azide. Compound 4 was converted to a 5'-[(N-methylcarbamoyl)amino] derivative (5) via one-pot reduction/acylation employing H2/Pd-C followed by treatment with p-nitrophenyl N-methylcarbamate. The latter step of this two-step process required an efficient source of p-nitrophenyl N-methylcarbamate, thus a highly efficient new method for preparing p-nitrophenyl N-alkylcarbamate was developed. N6-phenylcarbamoyl groups were introduced by treatment with phenylisocyanate, and an efficient new method for …

Go to article

Taking Mormons Seriously: Ethics Of Representing Latter-Day Saints In American Fiction, Terrol Roark Williams Jul 2007

Taking Mormons Seriously: Ethics Of Representing Latter-Day Saints In American Fiction, Terrol Roark Williams

Theses and Dissertations

My paper examines the ethics of representing Mormons in serious American fiction, viewed through two primary texts, Bayard Taylor's nineteenth-century dramatic poem The Prophet and Maureen Whipple's epic novel The Giant Joshua. I also briefly examine Walter Kirn's short stories “Planetarium” and “Whole Other Bodies.” Using Werner Sollors' and Matthew Frye Jacobson's writings on ethnicity as foundational, I argue in that Mormonism constitutes an ethnicity, which designation accentuates the ethical demands of those who represent the group. I also use W.J.T. Mitchell's theories of representation as the basis of my arguments of the ethics of representing ethnicity. As ethical theorists, …

Go to article

A Comparative Simulation Study Of Robust Estimators Of Standard Errors, Natalie Johnson Jul 2007

A Comparative Simulation Study Of Robust Estimators Of Standard Errors, Natalie Johnson

Theses and Dissertations

The estimation of standard errors is essential to statistical inference. Statistical variability is inherent within data, but is usually of secondary interest; still, some options exist to deal with this variability. One approach is to carefully model the covariance structure. Another approach is robust estimation. In this approach, the covariance structure is estimated from the data. White (1980) introduced a biased, but consistent, robust estimator. Long et al. (2000) added an adjustment factor to White's estimator to remove the bias of the original estimator. Through the use of simulations, this project compares restricted maximum likelihood (REML) with four robust estimation …

Go to article

Scandinavia After The Fall Of The Kalmar Union: A Study In Scandinavian Relations, 1523-1536, Kenneth Steffensen Jul 2007

Scandinavia After The Fall Of The Kalmar Union: A Study In Scandinavian Relations, 1523-1536, Kenneth Steffensen

Theses and Dissertations

As the Kalmar Union came to an end in 1523 the balance of control and power shifted in Scandinavia. Due to the tyranny of Christian II, Sweden rebelled and broke away under the leadership of Gustav Vasa while Norway remained in union with Denmark. Although Danes and Norwegians shared common traits and identifiers; including religion, language and cultural aspects, they had a stronger sense of identity to their own country rather to the union. Because of their political and economic influence in Norway prior to 1523, Danish nobles had increased Norwegian's sense of being Norwegians rather then Danish. Frederik I, …

Go to article

Narrative Skills In Children With Spina Bifida And Hydrocephalus, Melissa Ann Halliday Jul 2007

Narrative Skills In Children With Spina Bifida And Hydrocephalus, Melissa Ann Halliday

Theses and Dissertations

This study examined how 22 children with spina bifida and hydrocephalus (SBH) and 22 matched control children with the same vocabulary age (VA) performed on story retelling and story generation tasks. The children were asked to retell two stories of different lengths (Stein and Glenn's Melvin, the Skinny Mouse and The Tiger's Whisker) and generate two stories from different stimuli (wordless picture book and verbal story starter). Analyses were conducted in terms of global narrative organization (story structure), local connection of ideas (cohesion), and productivity (number of words and utterances). Two-way ANOVAs were conducted to analyze how the stories and …

Go to article

The Smallest Base And Precious Metal Deposits In The World: Vapor Transport And Deposition Of Co-Cu-Sn-Ag Alloys In Vesicles, Elizabeth Adele Outdoor Hunter Jul 2007

The Smallest Base And Precious Metal Deposits In The World: Vapor Transport And Deposition Of Co-Cu-Sn-Ag Alloys In Vesicles, Elizabeth Adele Outdoor Hunter

Theses and Dissertations

Metallic bronze-Co-Ag alloys ranging from1-90 µm have been discovered in bomb and lava vesicles from the mafic volcanoes of Kilauea in Hawaii and Vesuvius, Stromboli and Etna in Italy. It is inferred that the metals for these alloys were transported (in part) as chloride complexes, and that the metal ratios in the alloys may be a function of S/Cl. Alloy compositions in each system are extremely heterogeneous with Co concentrations from 1% to 94%, Cu from 2% to 89%, Sn from 1% to 22% and Ag from 0.5% to 42%. Maximum abundances (in wt%) of other trace or minor elements …

Go to article

A Gentlemen's Benevolence: Symptoms Of Class, Gender, And Social Change In Emma, Nicholas Nickleby, And The Mill On The Floss, Aubrey Lea Hammer Jul 2007

A Gentlemen's Benevolence: Symptoms Of Class, Gender, And Social Change In Emma, Nicholas Nickleby, And The Mill On The Floss, Aubrey Lea Hammer

Theses and Dissertations

Austen, Dickens, and Eliot each responded to discussions of their time concerning class, gender, and social change. One of the ways they addressed these issues, and sought to find solutions to the problems facing their culture, was through benevolence. Knightley, in Emma, uses benevolence as a means of mediating self-interest and sympathy. By acting out of sympathy, through benevolence, he achieves the self-interested benefits of reinforcing the class system and achieving his romantic conquests. Likewise, Dickens' Nicholas Nickleby learns how to use benevolence as a means of social mobility from his mentors, the Cheerybles. Throughout Nicholas Nickleby the hero learns …

Go to article

In Search Of Copia: Using Rhetoric To Teach Creative Writing, Ryan Solomon Jul 2007

In Search Of Copia: Using Rhetoric To Teach Creative Writing, Ryan Solomon

Theses and Dissertations

James Berlin, in his book Rhetoric and Reality, points out that our disparate epistemologies lead to inevitable classroom practices, which mean that different epistemologies impact our pedagogical approach and enforce certain views about the role and function of writing in classrooms. This thesis highlights the impact of Romantic beliefs about writing on creative writing pedagogy, as well as exploring how those beliefs hamper the critical function of the workshop. Romantic beliefs have enforced the idea that talent and genius is most important in creative writing, and that writing is spontaneous, organic, original, and expressive. Because of this, many creative writing …

Go to article

Extreme Ultraviolet Polarimetry With Laser-Generated High-Order Harmonics, Nicole Brimhall Jul 2007

Extreme Ultraviolet Polarimetry With Laser-Generated High-Order Harmonics, Nicole Brimhall

Theses and Dissertations

We developed an extreme ultraviolet (EUV) polarimeter, which employs laser-generated high-order harmonics as the light source. This relatively high-flux directional EUV source has available wavelengths between 8 nm and 62 nm and easily rotatable linear polarization. The polarimeter will aid researchers at BYU in characterizing EUV thin films and improving their understanding of materials for use in EUV optics. This first-time workhorse application of laser high harmonics enables polarization-sensitive reflection measurements not previously available in the EUV. We have constructed a versatile positioning system that places harmonics on the microchannel plate detector with an accuracy of 0.3 mm, which allows …

Go to article

The Writing On The Wall: Chinese-American Immigrants' Fight For Equality: 1850-1943, Elizabeth Lyman Jul 2007

The Writing On The Wall: Chinese-American Immigrants' Fight For Equality: 1850-1943, Elizabeth Lyman

Theses and Dissertations

Early in the 1850s, a greater number of Chinese immigrants began to enter the United States, leading to a Sinophobic frenzy that would continue for decades. Throughout the latter half of the nineteenth century and the first half of the twentieth century, Americans sought to exclude the Chinese literally and figuratively. Americans employed negative imagery to demonstrate the necessity of excluding the Chinese in order to “protect" white America. The negative imagery that became Americans' common view of the “Chinaman," enabled the United States to enact discriminatory laws without compunction. In the face of intense persecution and bitter discrimination, many …

Go to article

Reservoir Characterization And Outcrop Analogs To The Navajo Sandstone In The Central Utah Thrust Belt Exploration Play, Ashley Dalrymple Jul 2007

Reservoir Characterization And Outcrop Analogs To The Navajo Sandstone In The Central Utah Thrust Belt Exploration Play, Ashley Dalrymple

Theses and Dissertations

Reservoir heterogeneity plays an important role in oil field economics and completion strategies. We herein characterize the reservoir heterogeneity of the Early Jurassic Navajo Sandstone in the Justensen Flat/Devils Canyon area of the San Rafael Swell, Utah. These outcrops are located approximately 60 kilometers (45 mi) east of the recently discovered Covenant oil field which is located in the central Utah thrust belt exploration play. The reservoir for the Covenant field is the Navajo Sandstone. This study can serve as an outcrop analogue for this developing play and other eolian reservoirs worldwide. There are eight facies within the Navajo Sandstone …

Go to article

First Prev Next Last