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Certain Agave Species Exhibit The Capability To Be Moderately Productive Under Conditions Of High Salt And Drought Stress, Steven J. Bergsten
Certain Agave Species Exhibit The Capability To Be Moderately Productive Under Conditions Of High Salt And Drought Stress, Steven J. Bergsten
Theses and Dissertations
Water availability and arable lands are increasingly limiting resources in many parts of the U.S., particularly in semi-arid and arid regions. As a means of addressing food and fuel demands associated with burgeoning population growth, highly productive and water-use efficient crops need to be identified. One potential crop, Agave, merits consideration and evaluation due to its putative capability to provide sustenance and energy despite growing in water-limited regions and on marginal soils. However, little is known regarding the productivity these succulent plants will have under growing conditions of the Southwest, where high concentrated saline soils are abundant, and water is …
Development And Validation Of An Automated Directivity Acquisition System Used In The Acquisition, Processing, And Presentation Of The Acoustic Far-Field Directivity Of Musical Instruments In An Anechoic Space, Nicholas J. Eyring
Theses and Dissertations
A high spatial resolution acoustic directivity acquisition system (ADAS) has been developed to acquire anechoic measurements of the far field radiation of musical instruments that are either remote controlled or played by musicians. Building upon work performed by the BYU Acoustic Research Group in the characterization of loudspeaker directivity, one can rotate a musical instrument with sequential azimuthal angle increments under a fixed semicircular array of microphones while recording repeated notes or sequences of notes. This results in highly detailed and instructive directivity data presented in the form of high-resolution balloon plots. The directivity data and corresponding balloon plots may …
Identification Of The Binding Partners For Hspb2 And Cryab Reveals Myofibril And Mitochondrial Protein Interactions And Non-Redundant Roles For Small Heat Shock Proteins, Kelsey Murphey Langston
Identification Of The Binding Partners For Hspb2 And Cryab Reveals Myofibril And Mitochondrial Protein Interactions And Non-Redundant Roles For Small Heat Shock Proteins, Kelsey Murphey Langston
Theses and Dissertations
Small Heat Shock Proteins (sHSP) are molecular chaperones that play protective roles in cell survival and have been shown to possess chaperone activity. As such, mutations in this family of proteins result in a wide variety of diseases from cancers to cardiomyopathies. The sHSPs Beta-2 (HspB2) and alpha-beta crystalline (CryAB) are two of the ten human sHSPs and are both expressed in cardiac and skeletal muscle cells. A heart that cannot properly recover or defend against stressors such as extreme heat or cold, oxidative/reductive stress, and heavy metal-induced stress will constantly struggle to maintain efficient function. Accordingly, CryAB is required …
The Effects Of Professional Development On High School Teachers' Implementation Of The Problem-Solving Process, Brandon Y. Jackson
The Effects Of Professional Development On High School Teachers' Implementation Of The Problem-Solving Process, Brandon Y. Jackson
Theses and Dissertations
The majority of schools use punitive and reactive strategies to deal with maladaptive behaviors. This descriptive study was a replication of Wilmott (2012) and occurred in a multi-tiered system of supports (MTSS) high school. Professional development was provided to 22 teachers from a high school located in the western United States. This included 61% males and 39% females. Measures included the frequency of praise notes and ODRs, the quality of praise notes based on a praise note rubric, and a social validity questionnaire. The ODR and praise note frequencies were compared using the Spearman correlational coefficient that resulted in a …
Synthesis, Characterization, And Application Of High Surface Area, Mesoporous, Stabilized Anatase Tio2 Catalyst Supports, Rebecca Elizabeth Olsen
Synthesis, Characterization, And Application Of High Surface Area, Mesoporous, Stabilized Anatase Tio2 Catalyst Supports, Rebecca Elizabeth Olsen
Theses and Dissertations
Nanomaterials have attracted substantial attention in the area of catalysis due to the unique properties they exhibit such as high surface areas, intricate pore networks and unique morphologies. TiO2 has attracted attention as a catalyst since the discovery of its high photocatalytic activity by Fuishima and Honda in 1972. Given its high thermal stability, low cost, low environmental impact, and versatility, TiO2 is a widely used commercial catalyst and catalyst support. TiO2 is used in many applications such as photocatalysis is also an excellent support material for noble metals in a number of oxidative synthesis and pollution-control reactions. Though TiO2 …
Computational And Experimental Study Of Degeneration, Damage And Failure In Biological Soft Tissues, Gregory Allen Von Forell
Computational And Experimental Study Of Degeneration, Damage And Failure In Biological Soft Tissues, Gregory Allen Von Forell
Theses and Dissertations
The purpose of this work was to analyze the biomechanics of degeneration, damage, and failure in biological soft tissues both experimentally and computationally to provide insight into tendon or ligament tearing, tendo-achilles lengthening and lumbar spine dysfunction. For soft tissue tearing, experimental studies for calculating fracture toughness were performed and determined that tendons and ligaments are able to completely resist tear propagation. For tendo-achilles lengthening, a damage model was developed to mimic the behavior of the lengthening that occurs as a result of the percutaneous triple hemisection technique. The model provided insight for predicting the amount of lengthening that occurs …
Introducing The Vuepod: Development And Testing Of A Low-Cost Large-Scale Stereoscopic Immersive System Using 3d Lcd Televisions, Shane Makana Hayden
Introducing The Vuepod: Development And Testing Of A Low-Cost Large-Scale Stereoscopic Immersive System Using 3d Lcd Televisions, Shane Makana Hayden
Theses and Dissertations
3D immersive visualization systems, or CAVEs™, have found wide adoption for use in geosciences, planetary science, medical research, and computer science. However, much of the potential for such systems in practical civil and environmental engineering settings has been severely limited due to 1) extreme costs in both hardware and software; 2) immobility due to calibration and darkroom requirements; and 3) extensive and expensive manpower requirements for both operation and maintenance. This thesis presents the development and testing of a new mobile low-cost immersive stereo visualization system -- the "VuePod" -- that attempts to address these challenges through the use of …
It Will Always Be My Tree: An A/R/Tographic Study Of Place And Identity In An Elementary School Classroom, Molly Robertson Neves
It Will Always Be My Tree: An A/R/Tographic Study Of Place And Identity In An Elementary School Classroom, Molly Robertson Neves
Theses and Dissertations
This a/r/tographic research study examines how explorations of identity and place influence a sense of self. An elementary art educator investigated the roles of artist, researcher and teacher by having students create artwork individually and as a class. These pieces reflected their understanding of place and how it contributed to a sense of self. Using the methodology of a/r/tography, this teacher separated her identities of artist, teacher and researcher, and explored the complications and implications of all three in relation to her place as an elementary art specialist and her identity in the classroom. Several important understandings were drawn from …
Geology Of The Birdseye 7.5-Minute Quadrangle, Utah County, Utah:Â Implications For Mid-Cenozoic Extension And Deposition Of The Moroni Formation, Don L. Bagshaw
Theses and Dissertations
Geologic structures within the Birdseye 7.5 minute quadrangle Utah County, Utah have been related by previous workers to both the Jurassic Arapien Shale diapirism and to the mid-Cenozoic extensional collapse of the Charleston-Nebo Thrust. Whichever model proves valid, it will have implications for oil exploration and interpretation of the subsurface geologic structure in the region. A detailed map of the quadrangle was constructed to better constrain which mechanism was responsible for the deformation. Exposures of Arapien Shale near, and within the Birdseye quadrangle show no evidence of diapiric movement. Arapien involvement in the deformation of Tertiary rocks in the center …
Active Structural Acoustic Control Of Clamped And Ribbed Plates, William Richard Johnson
Active Structural Acoustic Control Of Clamped And Ribbed Plates, William Richard Johnson
Theses and Dissertations
A control metric, the weighted sum of spatial gradients (WSSG), has been developed for use in active structural acoustic control (ASAC). Previous development of WSSG [1] showed that it was an effective control metric on simply supported plates, while being simpler to measure than other control metrics, such as volume velocity. The purpose of the current work is to demonstrate that the previous research can be generalized to plates with a wider variety of boundary conditions and on less ideal plates. Two classes of plates have been considered: clamped flat plates, and ribbed plates. On clamped flat plates an analytical …
Molecular Modeling Of Dna For A Mechanistic Understanding Of Hybridization, Terry Jacob Schmitt
Molecular Modeling Of Dna For A Mechanistic Understanding Of Hybridization, Terry Jacob Schmitt
Theses and Dissertations
DNA microarrays are a potentially disruptive technology in the medical field, but their use in such settings is limited by poor reliability. Microarrays work on the principle of hybridization and can only be as reliable as this process is robust, yet little is known at the molecular level about how the surface affects the hybridization process. This work uses advanced molecular simulation techniques and an experimentally-parameterized coarse-grain model to determine the mechanism by which hybridization occurs on surfaces and to identify key factors that influence the accuracy of DNA microarrays. Comparing behavior in the bulk and on the surface showed, …
The Relationship Between Insecure Attachment And Premarital Sexual Timing, Carly Ostler
The Relationship Between Insecure Attachment And Premarital Sexual Timing, Carly Ostler
Theses and Dissertations
Recent studies are beginning to show evidence of marital problems for couples that have engaged in early premarital sexual activity compared to those who do not. Adult attachment theory plays an important role in explaining many kinds of distress for couples and helps explain sexual interaction, thus, in this study it is posited that attachment may influence sexual timing patterns. This study focuses on the relationship between insecure attachment styles and early premarital sexual timing. The sample consisted of 256 couples who took the Relationship Evaluation (RELATE) to measure their attachment styles and sexual timing while controlling for length of …
Infidelity And Forgiveness: Therapists' Views On Reconciliation And Restoration Of Trust Following Disclosure Of Infidelity, Miranda Mae Goldie
Infidelity And Forgiveness: Therapists' Views On Reconciliation And Restoration Of Trust Following Disclosure Of Infidelity, Miranda Mae Goldie
Theses and Dissertations
Infidelity is one of the most prevalent presenting problems in relational therapy. There are many conceptualizations of the healing process following infidelity and suggested interventions and treatment plans. Forgiveness is an essential part of relationship growth and healing interpersonal hurts. Reconciliation is relationship repair that can accompany forgiveness. In addition, restoring trust is essential to reconciliation. Means to accomplish rebuilding trust must be established. This study seeks to expand understanding of the treatment of infidelity specifically on the topics of forgiveness, reconciliation, and restoration of trust through disclosure. The Forgiveness vs. Reconciliation and Trust Scale (FvRTS) was developed as a …
Blame Me For Your Bad Grade: Autonomy In The Basic Digital Photography Classroom As A Means To Combat Poor Student Performance, Erin Collette Johnson
Blame Me For Your Bad Grade: Autonomy In The Basic Digital Photography Classroom As A Means To Combat Poor Student Performance, Erin Collette Johnson
Theses and Dissertations
This thesis explores current research on autonomy. Autonomy is defined in three categories: freedom to pose questions and encouraging student choice, trust in students to solve problems posed by those questions, and allowing student reflection on progress. Autonomy is one solution to promote intrinsic motivation in students. Autonomy supportive classrooms feature mainly language learning atmospheres in research. However, it is also pertinent to contemporary art education as it promotes an environment for student creativity. Student performance and the modes of measurement for this research project are based on common formative and summative assessment measures. Will autonomy in the classroom combat …
Nonlinear Spectroscopic Investigation Of Adsorption To C-18 Model Stationary Phase, Anthony D. Peterson
Nonlinear Spectroscopic Investigation Of Adsorption To C-18 Model Stationary Phase, Anthony D. Peterson
Theses and Dissertations
Reversed-phase liquid chromatography (RPLC) is a commonly used separation technique in chemistry. Nevertheless, the mechanistic interactions at the molecular level among the eluent, analyte, and the stationary phase are not fully understood. Because of this limited understanding, optimization of the separation must be done experimentally. Learning more about molecular interactions should aid in improving separations. We are currently using second-harmonic generation (SHG) spectroscopy to investigate how analytes adsorb to the surface. SHG is a spectroscopic technique that produces signal only at places of non-isotropic symmetry; this typically occurs at surfaces. SHG can be used to produce surface isotherms of test …
Record Linkage, Stasha Ann Bown Larsen
Record Linkage, Stasha Ann Bown Larsen
Theses and Dissertations
This document explains the use of different metrics involved with record linkage. There are two forms of record linkage: deterministic and probabilistic. We will focus on probabilistic record linkage used in merging and updating two databases. Record pairs will be compared using character-based and phonetic-based similarity metrics to determine at what level they match. Performance measures are then calculated and Receiver Operating Characteristic (ROC) curves are formed. Finally, an economic model is applied that returns the optimal tolerance level two databases should use to determine a record pair match in order to maximize profit.
Intercalibration Of Quikscat And Oscat Land Backscatter, John Colin Barrus
Intercalibration Of Quikscat And Oscat Land Backscatter, John Colin Barrus
Theses and Dissertations
The Ku-band SeaWinds-on-QuikSCAT scatterometer (QuikSCAT) operated continuously from 1999 to 2009. Though its primary mission was to estimate global ocean winds, QuikSCAT has proven useful in a variety of geophysical studies using land backscatter measurements. The end of the primary QuikSCAT mission in 2009 has prompted interest for continuing the QuikSCAT land dataset with other scatterometers. The Oceansat-2 scatterometer (OSCAT), launched in 2009, is a viable candidate for continuing the QuikSCAT time series because of the similarities of both sensors in function and design. An important difference in the sensors is that they operate at slightly different incidence angles. Continuing …
Understory Vegetation Response To Mechanical Mastication Of Piñon And Juniper Woodlands, Jordan Ann Bybee
Understory Vegetation Response To Mechanical Mastication Of Piñon And Juniper Woodlands, Jordan Ann Bybee
Theses and Dissertations
Piñon and juniper encroachment and infilling can alter ecosystem processes and decrease resilience and resistance in sagebrush grasslands. Land managers employ a variety of techniques to eliminate these trees and mitigate their negative effects. Mechanical mastication or shredding is an increasingly popular method of removing these trees in Utah. It is a versatile treatment that can reduce canopy fuels, increase infiltration, and reduced sediment loss. We compared vegetation cover for annual and perennial vegetation functional groups on shredded and adjacent unshredded areas across a range of sites. Our approach was to categorize sites by ecological site type (encroachment or tree) …
A "Time-Conscious" Christmas Carol, Jack Lundquist
A "Time-Conscious" Christmas Carol, Jack Lundquist
Theses and Dissertations
Shortly after Charles Dickens's A Christmas Carol was released in 1843, a tradition of adaptation began which has continued seemingly unabated to the present day. Consequently, the tale has become so widely known that one is arguably as likely to have first encountered the iconic miser Scrooge through any number of audio-visual adaptations as through the original work itself. Significant critical attention has been paid to the nature of Scrooge's drastic change from miser to philanthropist. Many would argue that the change, happening both literally and figuratively overnight, is not representative of a genuine psychological transformation. On Christmas day, 2010, …
Digital Outcrop Model And Paleoecology Of The Eight-Foot Rapid Algal Field (Middle Pennsylvanian Lower Ismay Sequence), Paradox Basin, Utah, Colton Lynn Goodrich
Digital Outcrop Model And Paleoecology Of The Eight-Foot Rapid Algal Field (Middle Pennsylvanian Lower Ismay Sequence), Paradox Basin, Utah, Colton Lynn Goodrich
Theses and Dissertations
Although phylloid algal mounds have been studied for 50 year, much remains to be determined concerning the ecology and sedimentology of these Late Paleozoic carbonate buildups. Herein we perform a digital outcrop study of the well-known Middle Pennsylvanian Lower Ismay mound interval in the Paradox Basin because outcropping mounds along the San Juan River are cited as outcrop analogs of reservoir carbonates in the Paradox Basin oil province of Utah and adjacent states. The principal field area is the Eight Foot algal field located at river mile 19.2 on the San Juan River, approximately 14 miles SSW of Bluff, Utah. …
Remembering The Haitian Revolution Through French Texts: Victor Hugo's Bug-Jargal And Alphonse De Lamartine's Toussaint Louverture, Irene Joyce Kim Stone
Remembering The Haitian Revolution Through French Texts: Victor Hugo's Bug-Jargal And Alphonse De Lamartine's Toussaint Louverture, Irene Joyce Kim Stone
Theses and Dissertations
The Haitian Revolution was the first successful slave revolt in history. And even though Haiti declared independence from France in 1804, most French civilization textbooks do not include this important event. From an economic standpoint, France depended on its imports from Saint-Domingue (Haiti's pre-revolutionary name); and from a philosophical standpoint, the slave revolt in Saint-Domingue originated from ideas that came from French philosophers preaching the Rights of Man. Studying the Haitian Revolution within the context of the French Revolution provides a perspective that highlights the complex relationship between France and its colonies as well as religion's displaced role after 1789. …
Polarization Diversity In The Presence Of Multipath Propagation, Grant Taylor Wagner
Polarization Diversity In The Presence Of Multipath Propagation, Grant Taylor Wagner
Theses and Dissertations
The possibility of polarization diversity using left and right hand circular polarization (LHCP and RHCP) in the presence of multipath propagation is examined. We show that there are differences in the received signal for LHCP and RHCP for a number of realistic scenarios. Because multipath propagation can produce different LHCP and RCHP signals, there exists the possibility for diversity improvement involving the two polarizations.
Structural Analysis And Optimization Of Skyscrapers Connected With Skybridges And Atria, Amy Jean Taylor Mccall
Structural Analysis And Optimization Of Skyscrapers Connected With Skybridges And Atria, Amy Jean Taylor Mccall
Theses and Dissertations
Skybridges and atria between buildings are becoming more and more popular. Most current skybridge connections are either roller or rigid-connections. This dissertation presents an investigation of the structural analysis and optimization of skyscraper systems with hinge-connected skybridges, and compares the results to skyscraper systems with roller-connected skybridges and to skyscraper systems without skybridges altogether. Also presented is an investigation of the structural analysis and optimization of skyscrapers both with and without atria between the buildings. It was assumed that the atria envelope was constructed with cushions made from lightweight, transparent, and flexible Ethylene Tetrafluoroethylene (ETFE). A simplified skyscraper skybridge model …
Material Geography, Mountains, And A-Nationalism In Thurman's The Blacker The Berry, Stephanie Jean Burns
Material Geography, Mountains, And A-Nationalism In Thurman's The Blacker The Berry, Stephanie Jean Burns
Theses and Dissertations
Scholars over the last two decades or so have become increasingly interested in methods of interpreting history, society, and literature that do not rely on nationalistic paradigms. One vein of the transnational analytic trend is interested not only in the multiplicity of cultural geographies but also in the materiality of geography. Such critical work is extremely helpful in challenging myopic nationalist readings; yet the materiality of geography used as a theoretical lens has even greater potential. Using geographical formations as a basis for literary analysis can yield a theoretical base that has nothing to do with the borders of nations …
Couple Attachment And Sexual Desire Discrepancy: A Longitudinal Study Of Non-Clinical Married Couples At Mid-Life, Anthony Allen Hughes
Couple Attachment And Sexual Desire Discrepancy: A Longitudinal Study Of Non-Clinical Married Couples At Mid-Life, Anthony Allen Hughes
Theses and Dissertations
Using latent growth curve modeling, this longitudinal study examined the patterns of the discrepancy between desired and actual frequency of sexual intercourse for 331 married couples over a period of 5 years. In addition, couple insecure attachment and control variables such as age, length of relationship, income, race, and education were used to predict each partner's sexual desire discrepancy (SDD) and its change over the 5 year time period. Participants were asked to report their actual frequency of sexual intercourse and their desired frequency in each wave of data collection. Discrepancy scores were created for each year by subtracting the …
Comparing Two Different Student Teaching Structures By Analyzing Conversations Between Student Teachers And Their Cooperating Teachers, Niccole Suzette Franc
Comparing Two Different Student Teaching Structures By Analyzing Conversations Between Student Teachers And Their Cooperating Teachers, Niccole Suzette Franc
Theses and Dissertations
Research has shown that preservice teachers participating in traditional student teaching programs tend to focus on classroom management, with very little focus on student mathematical thinking. The student teaching program at BYU has been redesigned in the hopes of shifting the focus of student teachers away from classroom management toward student mathematical thinking. This study compared conversations between student teachers and cooperating teachers before and after the redesign of the program to work towards determining the effectiveness of the refocusing of the new student teaching program. The study found that STs and CTs in the different student teaching structures were …
Cooperative Target Tracking Enhanced With The Sequence Memoizer, Everett A. Bryan
Cooperative Target Tracking Enhanced With The Sequence Memoizer, Everett A. Bryan
Theses and Dissertations
Target tracking is an important part of video surveillance from a UAV. Tracking a target in an urban environment can be difficult because of the number of occlusions present in the environment. If multiple UAVs are used to track a target and the target behavior is learned autonomously by the UAV then the task may become easier. This thesis explores the hypothesis that an existing cooperative control algorithm can be enhanced by a language modeling algorithm to improve over time the target tracking performance of one or more ground targets in a dense urban environment. Observations of target behavior are …
The Acute Effects Of Whole-Body Vibration Training On Passive And Dynamic Flexibility In Gymnasts, Caisa Nicole Brooks
The Acute Effects Of Whole-Body Vibration Training On Passive And Dynamic Flexibility In Gymnasts, Caisa Nicole Brooks
Theses and Dissertations
Gymnasts must attain extreme ranges of flexibility to execute performance requirements, thus effective stretching proves vital to advancement in the sport. This study examined the acute effects of whole-body vibration (WBV) on passive and dynamic flexibility in young, female gymnasts. Participants (n = 27, Junior Olympic levels 5-10) served as their own control. Measurements of passive and dynamic flexibility were obtained using the TOPS forward split testing method to examine passive flexibility and dynamic flexibility was measured via split jumps that were analyzed with video and Dartfish software. According to randomized order, all participants completed a stretching protocol either with …
Algumas Teorias Da Tradução E Suas Implicações Na Tradução Do Conto "Mammon And The Archer" De O. Henry, Simone S. G. C. Fails
Algumas Teorias Da Tradução E Suas Implicações Na Tradução Do Conto "Mammon And The Archer" De O. Henry, Simone S. G. C. Fails
Theses and Dissertations
This paper contains an overview of some of the main 20th Century tendencies in translation theory. It focus especially on matters of equivalence, dynamic equivalence, formal equivalence, skopos, abusive fidelity and foreignizing translation or resistant translation and their implications for actual translations. This paper also includes translations prepared according to the principles of abusive fidelity, equivalence and dynamic equivalence, which are compared and commented.
Pharmacokinetics Of Dexamethasone Delivered Via Iontophoresis, Justin Holbrook Rigby
Pharmacokinetics Of Dexamethasone Delivered Via Iontophoresis, Justin Holbrook Rigby
Theses and Dissertations
Study Design: Controlled laboratory study. Objectives: To determine the time course of dexamethasone sodium phosphate (Dex-P) iontophoresis delivery to underlying tissues using microdialysis. Background: The efficacy of iontophoresis at delivering Dex-P through the skin is unknown in humans because of the lack of minimally invasive measurement techniques. Methods: Sixty-four healthy male participants (age = 24.4 ± 3.3 yrs, height = 71.8 ± 2.5 in, weight = 181.8 ± 26.1 lbs) were randomly assigned into one of six groups: 1) 1 mA current, 1 mm probes depth ; 2) 1 mA current, 4 mm probes depth; 3) 2 mA current, 1 …