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Phylogeographic Analyses Of Obligate And Facultative Cave Crayfish Species On The Cumberland Plateau Of The Southern Appalachians, Jennifer Elizabeth Buhay Jul 2006

Phylogeographic Analyses Of Obligate And Facultative Cave Crayfish Species On The Cumberland Plateau Of The Southern Appalachians, Jennifer Elizabeth Buhay

Theses and Dissertations

Cave systems and their unique biota are widely viewed as highly endangered, yet very little is known about basic life history, ecology, distributions, habitat requirements, and evolutionary relationships of subterranean species. The crux of the problem in cave studies is the assumption that traditionally defined morpho-species represent distinct evolutionary lineages. Convergence is exhibited in the morphologies of many animal groups, vertebrate and invertebrate, which leads to confusion in diagnosing species' boundaries, geographic distributions, gene flow routes, and imperilment. This dissertation research includes phylogeographic analyses of freshwater cave-dwelling crayfishes in the Southern Appalachians, a global hotspot of subterranean biodiversity. By examining …

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Psychometrically Equivalent Bisyllabic Words For Speech Reception Threshold Testing In Arabic, Elisha Rose Ratcliff Jul 2006

Psychometrically Equivalent Bisyllabic Words For Speech Reception Threshold Testing In Arabic, Elisha Rose Ratcliff

Theses and Dissertations

The use of speech audiometry is essential in audiological testing. One of the most important elements of speech audiometry is speech reception threshold. To provide services for the growing population of non-English speaking people, audiologists need speech audiometry materials in a variety of languages. The purpose of this study was to develop, digitally record, evaluate, and equate Arabic bisyllabic words for use in testing speech reception threshold. Ninety frequently used bisyllabic words were digitally recorded by a male talker of standard Arabic. These words were presented to 20 normally hearing subjects in 2 dB increments at intensity levels ranging from …

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The Familiar Foreign Country: Reading Mexico In Cormac Mccarthy, Jack Kerouac, And Katherine Anne Porter, Rachel Mae Ligairi Jul 2006

The Familiar Foreign Country: Reading Mexico In Cormac Mccarthy, Jack Kerouac, And Katherine Anne Porter, Rachel Mae Ligairi

Theses and Dissertations

My thesis examines the discourse of Mexico in the works of three twentieth-century American authors-Cormac McCarthy, Jack Kerouac, and Katherine Anne Porter-in order to analyze representations of Otherness in modernism and postmodernism. I seek to destabilize the dividing line between these periods as well as to show how representation in postmodernity has become more problematic due in large part to the proliferation of consumer culture. Though the Mexico that McCarthy employs in Blood Meridian and the Border Trilogy (All the Pretty Horses, The Crossing, and Cities of the Plain) escapes many stereotypes, his Mexico is merely a staging ground that …

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Understanding Brigham Young University's Technology Teacher Education Program's Sucess In Attracting And Retaining Female Students, Katrina M. Cox Jul 2006

Understanding Brigham Young University's Technology Teacher Education Program's Sucess In Attracting And Retaining Female Students, Katrina M. Cox

Theses and Dissertations

The purpose of the study was to attempt to understand why Brigham Young University Technology Teacher Education program has attracted and retained a high number of females. This was done through a self-created survey composed of four forced responses, distributed among the Winter 2006 semester students. Likert-scale questions were outlined according to the five theoretical influences on women in technology, as established by Welty and Puck (2001) and two of the three relationships of academia, as established by Haynie III (1999), as well as three free response questions regarding retention and attraction within the major. Findings suggested strong positive polarity …

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A Study Of Home Builder Advertising For Smart Home Technologies, Jared Don Bingham Jul 2006

A Study Of Home Builder Advertising For Smart Home Technologies, Jared Don Bingham

Theses and Dissertations

The purpose of this research is to discover if home builders along the Wasatch Front in Utah are advertising smart home technologies. Research was conducted by a review of the display advertisements placed in the Saturday and Sunday editions of The Deseret Morning News/Salt Lake Tribune from March 4, 2006 through April 1, 2006. An internet search for smart home terminology was performed on the web sites of home builders advertising in The Deseret Morning News/Salt Lake Tribune. A review of the display advertisements for the Deseret Morning News/Salt Lake Tribune revealed that home builders are not using that medium …

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Topics On The Spectral Theory Of Automorphic Forms, Dustin David Belt Jul 2006

Topics On The Spectral Theory Of Automorphic Forms, Dustin David Belt

Theses and Dissertations

We study the analytic properties of the Eisenstein Series of $frac {1}{2}$-integral weight associated with the Hecke congruence subgroup $Gamma_0(4)$. Using these properties we obtain asymptotics for sums of certain Dirichlet $L$-series. We also obtain a formula reducing the study of Selberg's Eigenvalue Conjecture to the study of the nonvanishing of the Eisenstein Series $E(z,s)$ for Hecke congruence subgroups $Gamma_0(N)$ at $s=frac {1+i}{2}$.

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From Cadillac To Chevy: Environmental Concern, Compromise And The Central Utah Project Completion Act, Adam R. Eastman Jul 2006

From Cadillac To Chevy: Environmental Concern, Compromise And The Central Utah Project Completion Act, Adam R. Eastman

Theses and Dissertations

For the past century the federal government has been an active partner with state and local agencies to develop water supplies in the arid West. The last of the large-scale federal reclamation projects to be completed is the Central Utah Project or CUP. The CUP has generated considerable controversy throughout its history. The projects opponents have criticized its expense in terms of both dollars and environmental damage while others have worried about its impact on their water rights. Because of its cost and complexity, planning and construction have spanned decades. This has allowed individuals, organizations, and government agencies opportunity to …

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Reading And Writing In Science: How Do The Reform Documents Attend To The Fundamental Sense Of Science Literacy?, Kimberly J. Frandsen Jul 2006

Reading And Writing In Science: How Do The Reform Documents Attend To The Fundamental Sense Of Science Literacy?, Kimberly J. Frandsen

Theses and Dissertations

The purpose of this study was to examine and describe fundamental literacy messages found within three major science reform documents: Science for all Americans: Project 2061 (AAAS, 1990), Benchmarks for Science Literacy (AAAS, 1993), and the National Science Education Standards (NRC, 1996). A qualitative content analysis was performed in an effort to reveal any messages or statements supporting fundamental science literacy. Results from this study indicate that key science reform documents do in fact contain multiple messages supporting the fundamental sense of science literacy, however, the nature of these messages, the quantity, placement and presence of negative literacy statements may …

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Marital Harmony And Conflict: Linkages To Infants' Emotional Regulation, Cardiac Vagal Tone, And Developmental Status At Six- And Nine-Months Of Age, Staci Shizuko Ohmine Jul 2006

Marital Harmony And Conflict: Linkages To Infants' Emotional Regulation, Cardiac Vagal Tone, And Developmental Status At Six- And Nine-Months Of Age, Staci Shizuko Ohmine

Theses and Dissertations

This study examined the linkages between marital harmony and conflict and infants' emotional and physiological regulation abilities and developmental status at six- and nine-months of age. Participants included 93 first-time mothers and their infants (43 males, 50 females) from a Mountain West community. Mothers were asked to complete a battery of questionnaires, including a demographic measure and Braiker and Kelly's (1979) marital quality questionnaire. The revised Bayley Scales of Infant Development (BSID II) and Behavior Rating Scales (BRS) 2nd Edition were administered at six- and nine-months to measure infants' mental and motor development status and emotional regulation abilities. Infants' heart …

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Ecological Investigations Of Chukars In Western Utah, Randy T. Larsen Jul 2006

Ecological Investigations Of Chukars In Western Utah, Randy T. Larsen

Theses and Dissertations

This thesis presents three separate manuscripts in chapter format dealing with the ecology of Chukars (Alectoris chukar) in western North America. All three manuscripts have been formatted for publication in professional journals. Chapter one confirms discovery of ingested lead pellets in Chukars across a broad region of western Utah including all four western counties sampled. Prevalence rates were 1.9% (n=105) for crops and 10.7% (n=75) of gizzards showing no evidence of penetration wounds. Ingestion is likely related to grit size preferences that are consistent with common shot sizes. The second chapter describes watering patterns and water-site selection of Chukars. Chukars …

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An English For Specific Purposes Curriculum To Prepare English Learners To Become Nursing Assistants, Abel Javier Romo Jul 2006

An English For Specific Purposes Curriculum To Prepare English Learners To Become Nursing Assistants, Abel Javier Romo

Theses and Dissertations

This project details the designing and implementation of an English for Specific Purposes (ESP) Curriculum to prepare English learners to become Certified Nursing Assistants (CNA) at Utah Valley Regional Medical Center (UVRMC) in Provo, Utah. UVRMC, which is owned by Intermountain Health Care (IHC), employs a group of about 40 non-native speakers of English. They work as housekeepers and have interest in learning English and consequently acquiring new skills they could use in better jobs to improve the quality of their lives. UVRMC would like these employees to obtain additional education in order to provide them with better employment opportunities. …

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Pka As An Upstream Kinase For Lkb1/Strad/Mo25, Seth Taylor Herway Jul 2006

Pka As An Upstream Kinase For Lkb1/Strad/Mo25, Seth Taylor Herway

Theses and Dissertations

The LKB1/STRAD/MO25 complex (LSMK) has been identified as the major upstream kinase for AMP-activated protein kinase (AMPK). PKA phosphorylates LKB1 at the Ser428 residue in humans and Ser431 residue in mice. We investigated PKA as an upstream kinase for LSMK. LKB1 that had been incubated with PKA prior to incubation with AMPK experienced up to a 51% increase in AMPK Kinase activity compared to LKB1 alone (p < 0.05). When blocked with a PKA Inhibitor, the kinase effect of PKA on LKB1 was eliminated. Rat epitrochlearis muscle tissue incubated with epinephrine experienced no increase in AMPK activity compared with controls indicating that epinephrine does not cause AMPK activity in this type of tissue. In conclusion, phosphorylation by PKA can increase the AMPKK activity of LKB1-STRAD-MO25 in vitro. Because LKB1 has been found to be constitutively active, it is postulated that phosphorylation by PKA may act to enhance LKB1-AMPK interaction and thus achieve its effect.

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Improving Record Linkage Through Pedigrees, Burdette N. Pixton Jul 2006

Improving Record Linkage Through Pedigrees, Burdette N. Pixton

Theses and Dissertations

Record linkage, in a genealogical context, is the process of identifying individuals from multiple sources which refer to the same real-world entity. Current solutions focus on the individuals in question and on complex rules developed by human experts. Genealogical databases are highly-structured with relationships existing between the individuals and other instances. These relationships can be utilized and human involvement greatly minimized by using a filtered structured neural network. These neural networks, using traditional back-propagation methods, are biased in a way to make the network human readable. The results show an increase in precision and recall when pedigree data is available …

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The Effects Of 3-Phosphoglycerate And Other Metabolites On The Activation Of Amp-Activated Protein Kinase By Lkb1/Strad/Mo25, William John Ellingson Jul 2006

The Effects Of 3-Phosphoglycerate And Other Metabolites On The Activation Of Amp-Activated Protein Kinase By Lkb1/Strad/Mo25, William John Ellingson

Theses and Dissertations

Skeletal muscle contraction results in the phosphorylation and activation of the AMP-activated protein kinase (AMPK) by an upstream kinase, AMPKK. The LKB1-STRAD-MO25 complex is the major AMPKK in skeletal muscle; however, LKB1-STRAD-MO25 activity is not increased by muscle contraction. This relationship suggests that phosphorylation of AMPK by LKB1-STRAD-MO25 during skeletal muscle contraction may be regulated by allosteric mechanisms. In this study we tested an array of metabolites including glucose-6-phosphate (G6P), fructose-6-phosphate (F6P), fructose 1,6-bisphosphate (F1,6-P2), 3-phosphoglycerate (3PG), glucose-1-phosphate (G1P), glucose-1,6-bisphosphate (G1,6-P2), adenosine diphosphate (ADP), carnitine (Carn), acetyl-carnitine (Acarn), inosine monophosphate (IMP), inosine, and ammonia for allosteric regulation. We found that …

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Jumpstarting Phylogenetic Searches, Jesse Lewis Mecham Jul 2006

Jumpstarting Phylogenetic Searches, Jesse Lewis Mecham

Theses and Dissertations

Phylogenetic analysis is a central tool in studies of comparative genomics. When a new region of DNA is isolated and sequenced, researchers are often forced to throw away months of computation on an existing phylogeny of homologous sequences in order to incorporate this new sequence. The previously constructed trees are often discarded, and the researcher begins the search again from scratch. The jumpstarting algorithm uses trees from the prior search as a starting point for a new phylogenetic search. This technique drastically decreases search time for large data sets. This kind of analysis is necessary as researchers analyze tree of …

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Family-Of-Origin Quality, Regulation Of Negative Affect, Marital Stability, And Couple Drinking Patterns, Heidi M. Brunner Jul 2006

Family-Of-Origin Quality, Regulation Of Negative Affect, Marital Stability, And Couple Drinking Patterns, Heidi M. Brunner

Theses and Dissertations

The primary purpose of this study was to examine the relationship of family-of-origin quality, adult regulation of negative affect, and marital stability with the extent to which couples report they drink similarly and the extent to which they report that the husband drinks more than the wife. It was hypothesized that these two types of couple drinking patterns would be impacted by each individual spouse's context as well as by the interaction of those contexts. A national sample of 1498 couples or 2996 individuals (1498 wives and 1498 husbands married to each other) participated in this study. This study sought …

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Japanese Mothers' Parenting Styles With Preschool-Age Children, Ai Shibazaki Lau Jul 2006

Japanese Mothers' Parenting Styles With Preschool-Age Children, Ai Shibazaki Lau

Theses and Dissertations

The purpose of this study was to examine whether Western typologies of parenting (authoritative, authoritarian, permissive, and psychological control) and their dimensions (e.g., connection, regulation, physical punishment, verbal hostility) can be measured in the context of Japanese parenting. Based on the literature review, it was hypothesized that these parenting constructs are measurable in Japan. The participants were 214 Japanese mothers of preschool-age children (101 boys and 113 girls) from several preschools in Kushiro-city, Japan. A series of two-group (boys and girls) Confirmatory Factor Analysis was carried out with Mplus statistical software to test the measurement models of authoritative, authoritarian, permissive, …

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A Stratigraphic And Geochronologic Analysis Of The Morrison Formation/Cedar Mountain Formation Boundary, Utah, Brent W. Greenhalgh Jul 2006

A Stratigraphic And Geochronologic Analysis Of The Morrison Formation/Cedar Mountain Formation Boundary, Utah, Brent W. Greenhalgh

Theses and Dissertations

The Lower Cretaceous Cedar Mountain Formation preserves several vertebrate faunas and has the potential of providing critical timing information pertaining to Early Cretaceous dinosaurs and the Sierran magmatic arc. Historically, the Morrison/Cedar Mountain contact and the duration of the unconformity between them have been difficult or impossible to determine because 1) the formations were deposited in similar environments, 2) the basal Cedar Mountain Formation is composed of reworked Morrison Formation, and 3) there are no radiometric ages for the lower Cedar Mountain Formation. A stratigraphic study through central Utah reveals a diagnostic suite of pedogenic and sedimentologic characters across the …

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Psychometrically Equivalent Bisyllabic Word Lists For Word Recognition Testing In Taiwan Mandarin, Alycia Jane Dukes Jul 2006

Psychometrically Equivalent Bisyllabic Word Lists For Word Recognition Testing In Taiwan Mandarin, Alycia Jane Dukes

Theses and Dissertations

The aim of this study was to develop, digitally record, evaluate, and psychometrically equate a set of Taiwan Mandarin bisyllabic word lists to be used for word recognition testing. Frequently used bisyllabic words were selected and digitally recorded by male and female talkers of Taiwan Mandarin. Twenty normally hearing subjects were presented each word to find the percentage of words which they could correctly recognize. Each word was measured at 10 intensity levels (-5 to 40 dB HL) in increments of 5 dB. Logistic regression was used to include 200 words with the steepest logistic regression slopes in four psychometrically …

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Dna-Templated Surface Alignment And Characterization Of Carbon Nanotubes., Huijun Xin Jul 2006

Dna-Templated Surface Alignment And Characterization Of Carbon Nanotubes., Huijun Xin

Theses and Dissertations

Carbon nanotubes are appealing materials for nanofabrication due to their unique properties and structures. However, for carbon nanotubes to be used in mass-fabricated devices, precise control of nanotube orientation and location on surfaces is critical. I have developed a technique to align single-walled carbon nanotubes (SWNTs) on surfaces from a droplet of nanotube suspension under gas flow. Fluid motion studies indicate that alignment is likely due to circulation of SWNTs in the droplet. My work provides a facile method for generating oriented nanotubes for nanodevice applications. I have also devised an approach for localizing SWNTs onto 1-pyrenemethylamine-decorated DNA on surfaces. …

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Animism In Whitman: "Multitudes" Of Interpretations?, Rachelle Helene Woodbury Jul 2006

Animism In Whitman: "Multitudes" Of Interpretations?, Rachelle Helene Woodbury

Theses and Dissertations

Walt Whitman used animistic techniques in his poetry and prose, specifically "Song of the Redwood Tree," "Out of the Cradle Endlessly Rocking," and Specimen Days. The term animism can be traced to the Latin root of the word, anime, which connotes a "soul" or "vitality." So, when one is talking about animistic techniques, one is speaking of the (metaphoric or realistic) ensoulment of natural objects. In the wake of a growing global crisis modern scholarship has begun reexamining the implications of this belief; often it introduces ambiguities into an otherwise comfortable relationship of unquestioned human domination. In Specimen Days, Whitman …

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Arq Techniques For Mimo Communication Systems, Zhihong Ding Jul 2006

Arq Techniques For Mimo Communication Systems, Zhihong Ding

Theses and Dissertations

Multiple-input multiple-output (MIMO) communication systems employ multiple antennas at the transmitter and the receiver. Multiple antennas provide capacity gain and/or robust performance over single antenna communications. Traditional automatic-repeat-request (ARQ) techniques developed for single-input single-output (SISO) communication systems have to be modified in order to be employed in MIMO communication systems. In this dissertation, we propose and analysis some ARQ techniques for MIMO communication systems. The basic retransmission protocols of ARQ, stop-and-wait (SW-ARQ), go-back-$N$ (GBN-ARQ), and selective repeat (SR-ARQ), designed for SISO communication systems are generalized for parallel multichannel communication systems. The generalized ARQ protocols seek to improve the channel utilization …

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Proven Cases Of A Generalization Of Serre's Conjecture, Jonathan H. Blackhurst Jul 2006

Proven Cases Of A Generalization Of Serre's Conjecture, Jonathan H. Blackhurst

Theses and Dissertations

In the 1970's Serre conjectured a correspondence between modular forms and two-dimensional Galois representations. Ash, Doud, and Pollack have extended this conjecture to a correspondence between Hecke eigenclasses in arithmetic cohomology and n-dimensional Galois representations. We present some of the first examples of proven cases of this generalized conjecture.

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Enhanced Electrospray Ionization For Mass Spectrometry And Ion Mobility Spectrometry, Li Zhou Jul 2006

Enhanced Electrospray Ionization For Mass Spectrometry And Ion Mobility Spectrometry, Li Zhou

Theses and Dissertations

Electrospray ionization (ESI) has become one of the most commonly used ionization techniques for mass spectrometry (MS) and ion mobility spectrometry (IMS), and efforts continue to improve its performance. ESI-MS is most recognized for its wide application to biomacromolecules where high sensitivity is of paramount importance. However, the major limitation in sensitivity with ESI-MS is due to its low ion transmission efficiency from the ESI source into the sampling orifice and through any stages utilized for transfer of ions from atmosphere to vacuum in the MS. A series of atmospheric pressure ion focusing interfaces were designed and implemented to enhance …

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Speech Reception Threshold Materials For Taiwan Mandarin, Katie Bedke Slade Jul 2006

Speech Reception Threshold Materials For Taiwan Mandarin, Katie Bedke Slade

Theses and Dissertations

Speech reception threshold (SRT) tools have been developed to assist in the evaluation of hearing. This study was performed to develop, digitally record, evaluate, and equate Taiwan Mandarin trisyllabic words which can be used to measure the SRT. Eighty-nine commonly used trisyllabic words were chosen and digitally recorded by native male and female speakers. The words were then presented to 20 normally hearing subjects at 14 intensity levels (-10 to 16 dB HL) with 2 dB increments. Psychometric function slopes were calculated using logistic regression. Twenty-eight words with steep psychometric function were selected and digitally adjusted to match the mean …

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A Search For Low-Amplitude Variability Among Population I Main Sequence Stars, Michael Benjamin Rose Jul 2006

A Search For Low-Amplitude Variability Among Population I Main Sequence Stars, Michael Benjamin Rose

Theses and Dissertations

The detection of variable stars in open clusters is an essential component of testing stellar structure and evolution theories. The ability to detect low-amplitude variability among cluster members is directly related to the quality of the photometric results. Point Spread Function (PSF) fitting is the best method available for measuring accurate magnitudes within crowded fields of stars, while high-precision differential photometry is the preferred technique for removing the effects of atmospheric extinction and variable seeing. In the search for new variable stars among hundreds or thousands of stars, the Robust Median Statistic (RoMS) is proven more effective for finding low-amplitude …

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On The Combinatorics Of Certain Garside Semigroups, Christopher R. Cornwell Jul 2006

On The Combinatorics Of Certain Garside Semigroups, Christopher R. Cornwell

Theses and Dissertations

In his dissertation, F.A. Garside provided a solution to the word and conjugacy problems in the braid group on n-strands, using a particular element that he called the fundamental word. Others have since defined fundamental words in the generalized setting of Artin groups, and even more recently in Garside groups. We consider the problem of finding the number of representations of a power of the fundamental word in these settings. In the process, we find a Pascal-like identity that is satisfied in a certain class of Garside groups.

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Operational Amplifier Bandwidth Extension Using Negative Capacitance Generation, Adrian P. Genz Jul 2006

Operational Amplifier Bandwidth Extension Using Negative Capacitance Generation, Adrian P. Genz

Theses and Dissertations

A need for high bandwidth operational amplifiers, or op-amps, exists for certain applications. This need requires research in the area of op-amp bandwidth extension. The proposed method of this thesis uses Negative Capacitance Generation (NCG), which involves using the Miller effect to generate an equivalent negative capacitance at a given node in a circuit, to extend the bandwidth of an op-amp. This is accomplished by first applying NCG to the second stage of an op-amp, in which the op-amp has been compensated using Single Capacitor Miller Compensation (SCMC). Next, the Miller capacitor used to compensate the op-amp can be reduced …

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An Examination Of The Relationship Between Adventure Recreation And Adolescent Identity Development, Mathew David Duerden Jul 2006

An Examination Of The Relationship Between Adventure Recreation And Adolescent Identity Development, Mathew David Duerden

Theses and Dissertations

The purpose of this study is to examine, using both quantitative and qualitative methods, the effect of a two-week adventure recreation program on early adolescent identity development. The study also investigates the influence of gender and the parent-adolescent relationship on this process. Participants in this study included 44 males and 47 females, ages 11-17 (M = 13.4, SD = 1.03), from three western states. Twenty-two males and 23 females participated in the treatment group and the remaining 22 males and 24 females served as controls. The treatment group completed a two-week adventure recreation program, Camp WILD. The program consisted of …

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Seu-Induced Persistent Error Propagation In Fpgas, Keith S. Morgan Jul 2006

Seu-Induced Persistent Error Propagation In Fpgas, Keith S. Morgan

Theses and Dissertations

This thesis introduces a new way to characterize the dynamic SEU cross section of an FPGA design in terms of its persistent and non-persistent components. An SEU in the persistent cross section results in a permanent interruption of service until reset. An SEU in the non-persistent cross section causes a temporary interruption of service, but in some cases this interruption may be tolerated. Techniques for measuring these cross sections are introduced. These cross sections can be measured and characterized for an arbitrary FPGA design. Furthermore, circuit components in the non-persistent and persistent cross section can statically be determined. Functional error …

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