Digital Commons Network^™

The Asymmetric Phase-Transfer Catalyzed Alkylation Of Imidazolyl Ketones And Aryl Acetates And Their Applications To Total Synthesis, Michael Andrew Christiansen

Theses and Dissertations

Phase-transfer catalysts derived from the cinchona alkaloids cinchonine and cinchonidine are widely used in the asymmetric alkylation of substrates bearing moieties that resonance stabilize their enolates. The investigation of α-oxygenated esters revealed decreased α-proton acidity, indicating the oxygen's overall destabilizing effect on enolates by electron-pair repulsion. Alkylation of α-oxygenated aryl ketones with various alkyl halides proved successful with a cinchonidine catalyst, giving products with high yield and enantioselectivity. The resulting compounds were converted to esters through modified Baeyer-Villiger oxidation. Alkylation with indolyl electrophiles gave products that underwent decomposition under Baeyer-Villiger conditions. Alternative N-methylimidazolyl ketones were explored. Alkylated imidazolyl ketones, obtained …

Proposing A Purpose: Rhetorical Paideia Goals For First Year Composition, Lauren Everett Johnson

Theses and Dissertations

First Year Composition (FYC) instructors are often left to puzzle out the larger meaning of the most ubiquitous course in our field for themselves; consequently, goals for the course are frequently selected by the instructor, and are not always most effective for laying a groundwork of lifelong learning and education, or paideia. This lack of clear and unifying goals for the course is illustrated by a piece of 2005 scholarship that points to multiple focuses for FYC, each different in its values and aims. FYC is an important course for students, not only because it is one of only …

Gene Expression Patterns In Flea Vectors Of Yersinia Pestis, Wei Zhou

Theses and Dissertations

Plague bacteria (Yersinia pestis) are transmitted to susceptible mammals by fleas. At least 25 flea species found in North America have been identified as plague vectors. The most efficient flea vector is the Oriental rat flea Xenopsylla cheopis, while the cat flea Ctenocephalides felis is a poor vector. The factors that determine vector competence of different fleas are not known. The main obstacles that the bacteria must overcome in the flea gut are also unknown. Fleas' molecular responses to Y. pestis invading could be a determining factor to control the bacterial survival and growth. Good and poor …

Historic Fire Regimes On Eastern Great Basin (Usa) Mountains Reconstructed From Tree Rings, Stanley G. Kitchen

Theses and Dissertations

Management of natural landscapes requires knowledge of key disturbance processes and their effects. Fire and forest histories provide valuable insight into how fire and vegetation varied and interacted in the past. I constructed multi-century fire chronologies for 10 sites on six mountain ranges representative of the eastern Great Basin (USA), a region in which historic fire information was lacking. I also constructed tree recruitment chronologies for two sites. I use these chronologies to address three research foci. First, using fire-scar data from four heterogeneous sites, I assert that mean fire interval (MFI) values calculated from composite chronologies provide suitable estimates …

Time-Resolved Infrared Spectroscopy And Density Functional Theory Study Of Weak Interactions Of Metal Carbonyls And Organic Solvents, Carolyn Evans Sheffield

Theses and Dissertations

Pulsed laser flash photolysis of M(CO)6 (M = Cr, W) in cyclohexane with a small amount of benzene results in three sequential reactions. The first is the photodissociation of the parent to yield a M(CO)5:C6H12 complex, which takes place faster than the time resolution of our experiments. The second reaction is the replacement of the cyclohexane ligand with benzene to form a M(CO)5:C6H6 complex, in which benzene is coordinated to the metal via one side of the ring. This complex then falls apart in solution as M(CO)5 coordinates with a trace impurity in the solution that is likely water. Kinetic …

Part I: Evaluation Of Student Assessment Of Learning Gains (Salg)In Two Different Biology 100 Classes Part 2: What Biology Concepts Are Important In General Education?: Analysis Of Seventeen Core Concepts, Jessica Marie Rosenvall Howelle

Theses and Dissertations

The purpose of this two-part study is to examine how to improve introductory level non-majors biology courses to improve student attitude and learning gains in the sciences. The first part of this study examines the collective effect of three different pedagogies (service learning, concept mapping and guest lectures) on student attitude and learning gains in a freshman, non-majors biology course. Two classes, one with the three pedagogies, and one without, were compared. Data were collected from two classes in Fall 2008 (one treatment and one control) and two similar classes replicated in Fall 2009. Learning and attitude gains were measured …

The Heat Capacity And Thermodynamic Properties Of The Iron Oxides And Their Relation To The Mineral Core Of The Iron Storage Protein Ferritin, Claine Lindsey Morton Snow

Theses and Dissertations

The iron oxides are a group of materials with geological, biological, and technological importance. A thermodynamic understanding of these materials is important because it provides information about their relative stabilities, chemical reactivity, and transformations. This study provides the heat capacity of a nanocrystalline magnetite (Fe3O4) sample, bulk hematite (α-Fe2O3), nanocrystalline hematite, akaganéite (β-FeOOH), and lepidocrocite (γ-FeOOH) at temperatures as low as 0.5 K. These measurements were fit to theoretical functions at temperatures lower than 15 K, and the respective thermophysical properties of these materials are discussed. Also the molar entropies of bulk hematite and hydrous nanocrystalline hematite as well as …

Karl Friedrich Meyer, 1884-1974, Urs Gessner

Swiss American Historical Society Review

Karl Friedrich Meyer, the veterinarian scientist, the medical microbiologist and pathologist,theecologist,theepidemiologist, the public health promoter, and inspiring teache-the Swiss genius in the USAwhat an incredibly active, brilliant, and prodigious personality he was!

Redundant Journal Access: Why Pay More Than Once?, Jared L. Howland

Faculty Publications

PDF of Powerpoint Presentation on journal access. This presentation was given at the Electronic Resources and Libraries 2010 Conference in Austin, Texas.

Helping Child Welfare Workers Improve Cultural Competence By Utilizing Spiritual Genograms With Native American Families And Children, Gordon E. Limb, David R. Hodge

Faculty Publications

This study represents an initial step at giving child welfare workers an important assessment tool as they seek to provide culturally and spiritually competent services to Native American families and children. In order to determine the relevancy and consistency of utilizing a modified spiritual genogram assessment tool with Native Americans, 50 Native American experts reviewed, rated, and gave feedback on its use. Results showed that while there were limitations in utilizing spiritual genograms, this assessment tool could help child welfare workers become more culturally competent as they develop interventions with Native American families and children.

Representing Multi-Parent Organizational Structures For Use In High Performance Computing Resource Scheduling Algorithms, Lloyd T. Brown

Theses and Dissertations

Historically, organizational structures of many universities and corporations have followed a strictly tree-based, hierarchical model. These organizations are defined with no more than one parent organization, and typically resource requirements for the organization could be derived from the parent organization. In recent years, however, many institutions have created interdisciplinary research groups which incorporate multiple fields of research across multiple campus organizations. For example, at Brigham Young University, there exists a biophysics research group, a child organization of both the Department of Biology and the Department of Physics, making it unclear how to define its resource requirements in the context of …

About The Contributors, Farms Review

Review of Books on the Book of Mormon 1989–2011

No abstract provided.

Vol. 22 Num. 2 The Farms Review, Farms Review

Review of Books on the Book of Mormon 1989–2011

No abstract provided.

Often In Error, Selcom In Doubt: Rod Meldrum And Book Of Mormon Dna, Gregory L. Smith

Review of Books on the Book of Mormon 1989–2011

Review of Rod L. Meldrum. Rediscovering the Book of Mormon Remnant through DNA.

Implications Of Civility For Children And Adolescents: A Review Of The Literature, Keely Wilkins, Paul Caldarella, Rachel Crook-Lyon, K. Richard Young

Issues in Religion and Psychotherapy

The purpose of this article is to review the literature exploring various definitions of civility, along with reasons why civility is vital to children and adolescents in any community. The authors examine definitions and components of civility in both historical and current contexts. The need for increased civility in modern society is described. The authors also explore the relationship of civility education to character and moral education and outline civility interventions suggested in the literature. Finally, suggestions are given for methods and strategies that have been found to be successful in bringing civility into schools.

Watershed Modeling Using Gis Technology: A Critical Review

Journal of Spatial Hydrology

Understanding and managing water resource problems involves complex processes and interactions within the watershed surface and subsurface. The imposition of total maximum daily load (TMDL) regulations on the pollutant influx to a watershed has created a strong demand for new assessment tools. The spatial scales relevant to transport of the pollutants may span many orders of magnitude, ranging from field plots to regional hydrological systems. As the demand for and development of watershed modeling capabilities have evolved, geographic information systems (GIS) in tandem with remote sensing technologies have played an essential role supporting both data collection and analysis. This paper …

One Eternal Round, Hugh Nibley, Michael D. Rhodes

Maxwell Institute Publications

Preface

On 23 February 2005, I, along with a group of colleagues including John W. Welch, John Gee, and others, gathered in the front room of Hugh Nibley’s home. Hugh was there in a hospital bed, but was unconscious. His wife, Phyllis, and some of their children were also present. We were meeting to decide what to do with Hugh’s unfinished book, One Eternal Round. He had been working on it for more than f ifteen years before he became too ill to continue. A few months before, we had gathered together all the materials on the book from Hugh’s …

Modeling Family Leisure And Related Family Constructs: A National Study Of U.S. Parent And Youth Perspectives, Raymond A. Poff, Ramon Zabriskie, Jasmine A. Townsend

Faculty Publications

The purpose of this study was to begin the development of a broad model that could examine the structural relationships between family leisure involvement, family functioning, family communication, family leisure satisfaction, and satisfaction with family life among a large sample of families (n = 898) from the United States. Findings from both parent and youth perspectives were consistent with previous studies that examined the same variables individually and provided a possible picture of how these family variables might relate to one another in the broader context of family leisure. Slight differences between the parent and youth models added further insight …

The Book Of Mormon And The Origin Of Native Americans From A Maternally Inherited Dna Standpoint, Ugo. A. Perego

Review of Books on the Book of Mormon 1989–2011

No abstract provided.

Numerical Modelling Of Contaminant Transport Hydrodynamics

Journal of Spatial Hydrology

Modelling of contaminant transport on watersheds is a problem of concern with regard to the protection of water ecosystems. This paper presents a numerical model, using the finite element method, to simulate contaminant transport hydrodynamics. Spatial and temporal progression of a spilled toxic substance was compiled for the Macks-Creek basin located in United States. It is shown that the developed tool, based on coupled terrain and surface runoff models, provided adequate results in terms of runoff velocities and height. Results from this compute served as an input of a computer based system that we developed to simulate the real-time contaminant …

Editor's Introduction: An Unapologetic Apology For Apologetics, Daniel C. Peterson

Review of Books on the Book of Mormon 1989–2011

No abstract provided.

Something Rotten: Hamlet's Onto-Ecology, Christopher R. Mckeen

Criterion: A Journal of Literary Criticism

No abstract provided.

Twisted Thoughts And Elastic Molecules: Recent Developments In Neuroplasticity, James T. Summerhays

BYU Studies

During the twentieth century, many in the emerging fields of brain science operated under the assumption of absolute biological mate- rialism—the idea that all reality in life can be reduced to our natural, physical dimension. For example, some neuroscientists sought to explain the deep mysteries of human consciousness not as any cosmic intercon- nection of spirit and matter but merely as a series of chemical reactions in the brain. Such assumptions in reductive materialism and pure determin- ism may sometimes be necessary within the realm of controlled scientific inquiry; but when adopted as a way of life, determinism has profound …

The Tree House, Philip A. Snyder, Douglas Thayer

BYU Studies

Douglas Thayer. The Tree House: A Novel. Provo, Utah: Zarahemla Books, 2009.

Repetition, Failure, And The Ethical Absolute In James Joyce, Macy P. Todd

Criterion: A Journal of Literary Criticism

No abstract provided.

History Of Latter-Day Saint Education In Nauvoo 1839-1845, Marnie Hopkins

Student Works

Understanding the history of education within The Church of Jesus Christ of Latter-day Saints is essential in order to comprehend the full history of the Church, its people and culture. As the records of the Church have continued to be explored, members and non- members alike have been enriched by the lives of the early saints. Historians have made wonderful progress to provide the common reader with access to the records and history of the Church. However, there is still a substantial amount of research to be performed. One major gap in the research can be found during the Nauvoo …

Understanding Positive Father-Child Interaction: Children's, Fathers', And Mothers' Contributions, Erin K. Holmes, Aletha C. Huston

Faculty Publications

Guided by a systemic ecological framework for father involvement, we investigate children's, mothers', and fathers' contributions to observed father-child interaction. Analyses of 586 married resident fathers, their wives, and a target first-grade child (participants in the NICHD Study of Early Child Care) demonstrate that an additive model of father involvement accounts for the quality of father-child interaction better than a model which focuses on only one component of the system. Father parenting beliefs, child language skills, child social skills, maternal employment, and dyadic mother-child interaction quality each additively and significantly contribute to positive father-child interaction. Father average income and education …

Multiscale Modeling Of Cellular Systems In Biology, J. C. Dallon

Faculty Publications

Here we review eight different multiscale modeling efforts dealing with cellular systems in biology. The first two models focus on collagen based tissue, one dealing with the biomechanical properties of the tissue and the other focusing on how the dermis is remodeled in scar tissue formation. The next two models deal with first avascular tumor growth and then the role of the vasculature in tumor growth. We then consider two models which use the Immersed Boundary method to model tissue properties and cell-cell adhesion. Finally we conclude with two models with treatments of the Cellular Potts Model. The first models …

Are Older Adults Less Or More Physiologically Reactive? A Meta-Analysis Of Age-Related Differences In Cardiovascular Reactivity To Laboratory Tasks, Wendy C. Birmingham, Bert N. Uchino, Cynthia A. Berg

Faculty Publications

In this meta-analytic review of 31 laboratory studies, we examined if relatively older adults showed lower or higher cardiovascular reactivity compared with relatively younger adults. Results revealed that age was associated with lower heart rate reactivity but higher systolic blood pressure (SBP) reactivity during emotionally evocative tasks. Consistent with the predictions of dynamic integration theory, the result for SBP was moderated by the degree of task activation. These data are discussed in light of existing self-regulatory models and important future research directions.

Norms, Conformity, And Controls, William B. Tayler, Robert J. Bloomfield

Faculty Publications

Research in behavioral economics suggests that in addition to their traditional incentive effects, formal control systems can influence psychological motivations. We extend this literature by demonstrating experimentally that formal controls directly influence people’s sense of what behaviors are appropriate in the setting (personal norms), and indirectly alter people’s tendency to conform to the behavior of those around them (descriptive norms). These effects persist even after the controls are changed, so that the effects of current controls can be strongly influenced by past control strength. Our results support those who are incorporating psychological factors into principal-agent models (such as Fischer and …