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ASU Electronic Theses and Dissertations


This collection includes most of the ASU Theses and Dissertations from 2011 to present. ASU Theses and Dissertations are available in downloadable PDF format; however, a small percentage of items are under embargo. Information about the dissertations/theses includes degree information, committee members, an abstract, supporting data or media.

In addition to the electronic theses found in the ASU Digital Repository, ASU Theses and Dissertations can be found in the ASU Library Catalog.

Dissertations and Theses granted by Arizona State University are archived and made available through a joint effort of the ASU Graduate College and the ASU Libraries. For more information or questions about this collection contact or visit the Digital Repository ETD Library Guide or contact the ASU Graduate College at gradformat@asu.edu.


Resource Type
Date Range
2004 2020


Telomerase is a special reverse transcriptase that extends the linear chromosome termini in eukaryotes. Telomerase is also a unique ribonucleoprotein complex which is composed of the protein component called Telomerase Reverse Transcriptase (TERT) and a telomerase RNA component (TR). The enzyme from most vertebrate species is able to utilize a short template sequence within TR to synthesize a long stretch of telomeric DNA, an ability termed "repeat addition processivity". By using human telomerase reconstituted both in vitro (Rabbit Reticulocyte Lysate) and in vivo (293FT cells), I have demonstrated that a conserved motif in the reverse transcriptase domain of the telomerase …

Contributors
Xie, Mingyi, Chen, Julian J.L., Yan, Hao, et al.
Created Date
2010

Contemporary theories of trauma identify the creation of a coherent trauma narrative and therapeutic exposure to trauma memories as potential recovery mechanisms. These factors are often inherent to the disclosure process, resulting in a parallel theoretical framework for experimental research that conceptualizes disclosure as a therapeutic intervention. The present investigation examined the moderational impact of disclosure following trauma on the link between trauma severity and symptoms of Posttraumatic Stress Disorder (PTSD). Disclosure status (discloser or nondiscloser), highest extent of disclosure, and length of delay to first disclosure were tested in a series of moderated regression models among a sample of …

Contributors
Fields, Briana, Barrera, Manuel, Holtfreter, Kristy, et al.
Created Date
2010

"Globesity," as defined by the World Health Organization, describes obesity as a pandemic affecting at least 400 million people worldwide. The prevalence of obesity is higher among women than men; and in non-Hispanic black and Hispanic populations. Obesity has been significantly associated with increased all-cause mortality, and mortality from cardiovascular disease, obesity-related cancers, diabetes and kidney disease. Current strategies to curb obesity rates often use an ecological approach, suggesting three main factors: biological, behavioral, and environmental. This approach was used to develop four studies of obesity. The first study assessed dietary quality, using the Healthy Eating Index (HEI)-2005, among premenopausal …

Contributors
Milliron, Brandy-Joe, Woolf, Kathleen, Vaughan, Linda, et al.
Created Date
2010

In a mere thirty years, hospice has grown from a purely ideological philosophy of care for terminally ill individuals and their families, to a large and well organized healthcare entity. And government statistics project that healthcare will generate more new jobs than any other industry in America until at least 2018. While most of the extant literature that has been published on healthcare workers has focused on negative organizational processes, such as stress and burnout, there has been a recent shift in scholarly ideology in which researchers have been challenged to consider the positive aspects of organizational life as well. …

Contributors
Way, Deborah, Tracy, Sarah J, Carlson, Cheree, et al.
Created Date
2010

To establish reliable wireless communication links it is critical to devise schemes to mitigate the effects of the fading channel. In this regard, this dissertation analyzes two types of systems: point-to-point, and multiuser systems. For point-to-point systems with multiple antennas, switch and stay diversity combining offers a substantial complexity reduction for a modest loss in performance as compared to systems that implement selection diversity. For the first time, the design and performance of space-time coded multiple antenna systems that employ switch and stay combining at the receiver is considered. Novel switching algorithms are proposed and upper bounds on the pairwise …

Contributors
Bangalore Narasimhamurthy, Adarsh, Tepedelenlioglu, Cihan, Duman, Tolga M, et al.
Created Date
2010

The music of Johann Sebastian Bach has long been used for keyboard percussion pedagogy and performance. The cello suites (BWV 1007-1012), in particular, are popular choices for marimbists. As with many transcriptions for marimba, performers are challenged to transfer Bach's musical genius onto an instrument whose timbre, range, mode of execution and acoustic properties are distinctly different from the original. To date, there is no concise and relevant edition of the suites for study and performance at the marimba. The edition contained herein solves most, if not all, of the problems normally confronted by marimbists. In addition to synthesizing the …

Contributors
Sallak, William Leslie, Smith, J. B., Sunkett, Mark, et al.
Created Date
2010

Many methods have been proposed to estimate power system small signal stability, for either analysis or control, through identification of modal frequencies and their damping levels. Generally, estimation methods have been employed to assess small signal stability from collected field measurements. However, the challenge to using these methods in assessing field measurements is their ability to accurately estimate stability in the presence of noise. In this thesis a new method is developed which estimates the modal content of simulated and actual field measurements using orthogonal polynomials and the results are compared to other commonly used estimators. This new method estimates …

Contributors
Kokanos, Barrie Lee, Karady, George G, Heydt, Gerald, et al.
Created Date
2010

The fields of pattern recognition and machine learning are on a fundamental quest to design systems that can learn the way humans do. One important aspect of human intelligence that has so far not been given sufficient attention is the capability of humans to express when they are certain about a decision, or when they are not. Machine learning techniques today are not yet fully equipped to be trusted with this critical task. This work seeks to address this fundamental knowledge gap. Existing approaches that provide a measure of confidence on a prediction such as learning algorithms based on the …

Contributors
Nallure Balasubramanian, Vineeth, Panchanathan, Sethuraman, Ye, Jieping, et al.
Created Date
2010

The global transport and deposition of anthropogenic nitrogen (N) to downwind ecosystems are significant and continue to increase. Indeed, atmospheric deposition can be a significant source of N to many watersheds, including those in remote, unpopulated areas. Bacterial denitrification in lake sediments may ameliorate the effects of N loading by converting nitrate (NO3-) to N2 gas. Denitrification also produces nitrous oxide (N2O), a potent greenhouse gas. The ecological effects of atmospheric N inputs in terrestrial ecosystems and the pelagic zone of lakes have been well documented; however, similar research in lake sediments is lacking. This project investigates the effects N …

Contributors
Mccrackin, Michelle Lynn, Elser, James J, Grimm, Nancy B, et al.
Created Date
2010

Thousands of high-resolution images are generated each day. Segmenting, classifying, and analyzing the contents of these images are the key steps in image understanding. This thesis focuses on image segmentation and classification and its applications in synthetic, texture, natural, biomedical, and industrial images. A robust level-set-based multi-region and texture image segmentation approach is proposed in this thesis to tackle most of the challenges in the existing multi-region segmentation methods, including computational complexity and sensitivity to initialization. Medical image analysis helps in understanding biological processes and disease pathologies. In this thesis, two cell evolution analysis schemes are proposed for cell cluster …

Contributors
Said, Asaad F., Karam, Lina, Chakrabarti, Chaitali, et al.
Created Date
2010

The bony pelvis is a pivotal component of the locomotor system, as it links the hindlimb with the trunk and serves as anchorage for the primary propulsive musculature. Its shape is therefore expected to be adapted to the biomechanical demands of habitual locomotor behavior. However, because the relationship between locomotor mechanics and pelvic morphology is not well understood, the adaptive significance of particular pelvic traits and overall pelvic shape remains unclear. This study used an integrative, dual approach to elucidate the relationship between form and function in the primate pelvis. A biomechanical cylinder model of pelvic stress resistance was tested …

Contributors
Lewton, Kristi Lynn, Spencer, Mark A, Reed, Kaye E, et al.
Created Date
2010

In today's global market, companies are facing unprecedented levels of uncertainties in supply, demand and in the economic environment. A critical issue for companies to survive increasing competition is to monitor the changing business environment and manage disturbances and changes in real time. In this dissertation, an integrated framework is proposed using simulation and online calibration methods to enable the adaptive management of large-scale complex supply chain systems. The design, implementation and verification of the integrated approach are studied in this dissertation. The research contributions are two-fold. First, this work enriches symbiotic simulation methodology by proposing a framework of simulation …

Contributors
Wang, Shanshan, Wu, Teresa, Fowler, John, et al.
Created Date
2010

Protein crystallization has become an extremely important tool in biochemistry since the first structure of the protein Myoglobin was solved in 1958. Survival of motor neuron protein has proved to be an elusive target in regards to producing crystals of sufficient quality for X-ray diffraction. One form of Survival of motor neuron protein has been found to be a cause of the disease Spinal Muscular Atrophy that currently affects 1 in 6000 live births. The production, purification and crystallization of Survival of motor neuron protein are detailed. The Fenna-Matthews-Olson (FMO) protein from Pelodictyon phaeum is responsible for the transfer of …

Contributors
Larson, Chadwick Robert, Allen, James P, Francisco, Wilson, et al.
Created Date
2010

ABSTRACT This narrative study traces the development of a dance curriculum as it unfolded in an inner city public school. It examines the curriculum emergence through intersecting worlds of artistic practice, improvisation, lived experience and context. These worlds were organized and explored through themes of gender, emotion, longing and intersections and examined through lenses of critical theory, aesthetics and currere. It examines the interior dialogue within one individual educator who is both a dance artist and a teacher and reflects the differing and at times conflicting perspectives within those two positions. The curriculum acquired the name "curriculum by accident" because …

Contributors
Bendix, Susan W., Blumenfeld-Jones, Donald, Barone, Thomas, et al.
Created Date
2010

The phenomenon that prompted this study was the increasing number of teens with cell phones and the issues, both legal and nonlegal, that permeate to schools. The trend among teens called teen sexting is receiving national and local attention. Sexting typically involves teens using texts to send cellular messages that may include naked photographs or shared videos containing sexual content. This study reviewed 4 main issues (a) the policies for student use of cell phones on campus to regulate teen sexting issues, (b) whether teen sexting awareness and prevention curriculum is being implemented, (c) the extent to which teen sexting …

Contributors
Maguire, Cindy, Appleton, Nicholas, Davey, Lynn, et al.
Created Date
2010

Codeswitching, or the bilingual practice of switching between two languages, is a frequently misunderstood phenomenon in many fields, including education. Given the growing number of bilingual students and English Language Learners in U.S. schools, it is imperative that the field of education be informed by current research in bilingualism and language acquisition, including codeswitching. Codeswitching that occurs within a sentence is subject to specific rules derived from the languages involved in the switching. Furthermore, a codeswitcher's intuitions about the grammatical acceptability of certain switches over others, called grammaticality judgments, provide linguists with a unique window into how the language systems …

Contributors
Mcalister, Kara Tiffany, Macswan, Jeff, Faltis, Christian, et al.
Created Date
2010

Driven by a variety of factors, online learning has continued to grow at an unprecedented rate. A Sloan Foundation report issued in January of 2010 indicated that in 2009, 4.6 million students took at least one online class, an increase in 17% over 2008. Graduate business education, and more specifically, Master of Business Administration (MBA) programs have responded to this growth and other drivers such as globalization, institutional competition and student demand by leveraging the online platform more extensively. Because of the continued growth of online programs, there is an ongoing need to better understand the motivational beliefs and self-regulatory …

Contributors
Salik, Steven Harrison, Bitter, Gary G, Alpers, Rojann R, et al.
Created Date
2010

Enzymes which regulate the metabolic reactions for sustaining all living things, are the engines of life. The discovery of molecules that are able to control enzyme activity is of great interest for therapeutics and the biocatalysis industry. Peptides are promising enzyme modulators due to their large chemical diversity and the existence of well-established methods for library synthesis. Microarrays represent a powerful tool for screening thousands of molecules, on a small chip, for candidates that interact with enzymes and modulate their functions. In this work, a method is presented for screening high-density arrays to discover peptides that bind and modulate enzyme …

Contributors
Fu, Jinglin, Woodbury, Neal W, Johnston, Stephen A, et al.
Created Date
2010

Stress responses play a central role in the development of psychopathology. Coping efforts, one subset of stress responses, have been shown to influence the relations between stress and adjustment. Although the relations between youths' coping and emotional and behavioral outcomes are well-documented, less is known about the factors that predict youths' coping. Given their importance for adaptation, understanding influences on youths' coping has important implications for developmental theories and preventive interventions. The current study examined the main and interactive effects of positive parenting and youths' temperament on youths' coping efforts and coping efficacy one year later in a sample of …

Contributors
Velez, Clorinda Eileen, Wolchik, Sharlene, Eisenberg, Nancy, et al.
Created Date
2010

Graph coloring is about allocating resources that can be shared except where there are certain pairwise conflicts between recipients. The simplest coloring algorithm that attempts to conserve resources is called first fit. Interval graphs are used in models for scheduling (in computer science and operations research) and in biochemistry for one-dimensional molecules such as genetic material. It is not known precisely how much waste in the worst case is due to the first-fit algorithm for coloring interval graphs. However, after decades of research the range is narrow. Kierstead proved that the performance ratio R is at most 40. Pemmaraju, Raman, …

Contributors
Smith, David A., Kierstead, Henry A., Czygrinow, Andrzej, et al.
Created Date
2010

Multicultural counseling competencies (MCCs) are fundamental to the ethical practice of providing services to clients. One such competency is the aspect of self-awareness of one's own worldview. As such, it is incumbent that attention to counselor's self-awareness be a part of clinical training. While research has begun to examine multicultural supervision, much of the research holds assumptions about the types of multicultural discussions that take place, as well as what may actually occur within these sessions. Little is known about what is discussed and how. This exploratory, qualitative study examined what actually occurs within clinical supervision sessions with regard to …

Contributors
Zapata, Angela L., Bernstein, Bianca, Coon, David W., et al.
Created Date
2010

The impact of urbanization on wildlife is becoming an important topic in conservation. However little is known concerning the proximate mechanisms involved which enable some species to persist in cities, while others perish. Adapting to novel city environments requires individuals to maintain a functional physiological response to stressful stimuli, while concurrently using the necessary resources (food) needed to persist. A primary function of the stress response is the mobilization of intrinsic energy resources, and thus both requirements (energy and stress) are explicably linked. This dissertation investigates the interaction of energetic reserves and the physiological stress response in a native bird …

Contributors
Fokidis, Haralambos Bobby, Deviche, Pierre, Arizona State University
Created Date
2010

The organ in the Catholic Church of the United States is a mirror of its time, reflecting the various challenges facing Catholic liturgy today. In some cases, it reflects the rich patrimony of European immigrants, anxious to replicate the liturgical conditions they left behind. In others, it reflects the efforts of liturgical reformers to "update" the liturgy, creating more opportunities for what they understand to be active participation of the faithful. The absence of the organ in some American Catholic churches, particularly, in the time following the liturgical reforms of Vatican II, raises questions on the direction of sacred music …

Contributors
Hart, Skye Matthew, Marshall, Kimberly A., Koonce, Frank W., et al.
Created Date
2010

The purpose of this experimental study was to investigate the effects of textual and visual annotations on Spanish listening comprehension and vocabulary acquisition in the context of an online multimedia listening activity. 95 students who were enrolled in different sections of first year Spanish classes at a community college and a large southwestern university were randomly assigned to one of four versions of an online multimedia listening activity that contained textual and visual annotations of several key words. Students then took a comprehension and vocabulary posttest and a survey to measure cognitive load and general attitudes towards the program. Results …

Contributors
Cottam, Michael Evan, Savenye, Wilhelmina, Klein, James D., et al.
Created Date
2010

Spirituality has been studied in relation to psychological factors in health for the past decade and has been found to promote positive affect while possibly benefiting health. However, multiple dimensions of spirituality need to be examined systematically before much can be concluded regarding the influence of spirituality on health. One purpose of this study was to test the validity of the four factors of the Psychomatrix Spirituality Inventory (PSI) developed by Wolman using confirmatory factor analysis (CFA): divinity, mindfulness, extrasensory perception, and intellectuality. In addition, the moderation effects of these factors on stress, assessed by cortisol levels, and on perceived …

Contributors
Chung, Kuo-Yi, Robinson Kurpius, Sharon E, Nemeroff, Carol, et al.
Created Date
2010

The object of this body of work is to study the properties and suitability of zinc oxide thin films with a view to engineering them for optoelectronics applications, making them a cheap and effective alternative to indium tin oxide (ITO), the most used transparent conducting oxides in the industry. Initially, a study was undertaken to examine the behavior of silver contacts to ZnO and ITO during thermal processing, a step frequently used in materials processing in optoelectronics. The second study involved an attempt to improve the conductivity of ZnO films by inserting a thin copper layer between two ZnO layers. …

Contributors
Sivaramakrishnan, Karthik, Alford, Terry L, Schroder, Dieter K, et al.
Created Date
2010

Threshold logic has long been studied as a means of achieving higher performance and lower power dissipation, providing improvements by condensing simple logic gates into more complex primitives, effectively reducing gate count, pipeline depth, and number of interconnects. This work proposes a new physical implementation of threshold logic, the threshold logic latch (TLL), which overcomes the difficulties observed in previous work, particularly with respect to gate reliability in the presence of noise and process variations. Simple but effective models were created to assess the delay, power, and noise margin of TLL gates for the purpose of determining the physical parameters …

Contributors
Leshner, Samuel, Vrudhula, Sarma, Chatha, Karamvir, et al.
Created Date
2010

From Marathon to Athens was inspired by the legend of Pheidippides, a Greek messenger who ran approximately twenty-six miles between the cities of Marathon and Athens in ancient Greece to deliver an important wartime message. According to the legend, he died shortly after completing the journey. The marathon races of today were inspired by his story, though it may be more myth than reality. There is a great deal of inherent drama in the undertaking of such a feat, whether it be a marathon or any other test of strength and endurance. There is the rush of adrenaline when it …

Contributors
Osteen-Petreshock, Kimberly, Hackbarth, Glenn, Rockmaker, Jody, et al.
Created Date
2010

Despite some prevailing attitudes that bullying is normal, relatively innocuous behavior, it has recently been recognized as a serious problem in schools worldwide. Victimized students are more likely to evidence poor academic and semi-academic outcomes, experience social difficulties, and drop out of school in comparison to their non-victimized peers. Although anti-bullying programs have proliferated during the last decade, those aimed at helping children cope with bullying often suffer from a lack of basic research on the effectiveness of children's responses to bullying. The focus of this study was to delineate the ways in which elementary school-aged children typically cope with …

Contributors
Polasky, Sarah Anne, Kochenderfer-Ladd, Becky, Nakagawa, Kathryn, et al.
Created Date
2010

Fluctuating flow releases on regulated rivers destabilize downstream riverbanks, causing unintended, unnatural, and uncontrolled geomorphologic changes. These flow releases, usually a result of upstream hydroelectric dam operations, create manmade tidal effects that cause significant environmental damage; harm fish, vegetation, mammal, and avian habitats; and destroy riverbank camping and boating areas. This work focuses on rivers regulated by hydroelectric dams and have banks formed by sediment processes. For these systems, bank failures can be reduced, but not eliminated, by modifying flow release schedules. Unfortunately, comprehensive mitigation can only be accomplished with expensive rebuilding floods which release trapped sediment back into the …

Contributors
Travis, Quentin Brent, Mays, Larry, Schmeeckle, Mark, et al.
Created Date
2010

Early hominins present an unusual pattern of sexual dimorphism. On one hand, the canine teeth of these species are weakly size-dimorphic, vertically short, and nonhoning, suggesting a social system characterized by infrequent, low-intensity intermale competition and monogamous pair-bonding. On the other hand, marked size variation in skeletal remains attributed to species of Australopithecus is thought to reflect strong body-mass dimorphism, which is more consistent with intense intermale competition. Reconciling these conflicting signals and understanding their adaptive significance is a major goal of paleoanthropology. This dissertation research contributes to this objective by investigating factors that may constrain or reduce canine height …

Contributors
Scott, Jeremiah E., Kimbel, William H., Schwartz, Gary T., et al.
Created Date
2010

The metalloenzyme quercetin 2,3-dioxygenase (QueD) catalyzes the oxidative decomposition of the aromatic compound, quercetin. The most recently characterized example is a product of the bacterium Bacillus subtilis (BsQueD); all previous examples were fungal enzymes from the genus Aspergillus (AQueD). AQueD contains a single atom of Cu(II) per monomer. However, BsQueD, over expressed in Escherichia coli, contains Mn(II) and has two metal-binding sites, and therefore two possible active sites per monomer. To understand the contribution of each site to BsQueD's activity, the N-terminal and C-terminal metal-binding sites have been mutated individually in an effort to disrupt metal binding. In wild type …

Contributors
Bowen, Sara, Francisco, Wilson A, Allen, James, et al.
Created Date
2010

This study's purpose was to explore effectiveness of alternate format in-service delivery for what teachers needed to know to effectively teach their students with Autism Spectrum Disorder/High Functioning Autism/Asperger Syndrome (ASD/HFA/AS) in the general education setting. The study's research questions included: Did participants learn information they needed as well using asynchronous online in-service format models as when in a traditional face-to-face consultative approach? Did the use of a broad asynchronous online discussion approach to collaboration result in effective student problem-solving for the participants? Did participant attitudes change toward online instruction as a means of collaboration as a result of engaging …

Contributors
Bruening, Marie Diane, Mccoy, Kathleen M., Gehrke, Rebecca, et al.
Created Date
2010

This research project provides a unique perspective of the role of the concept of collaborative leadership between the Arizona Subsidized Child Care Program and its key stakeholder network. The process involved was to frame the research and its findings using the Team Multifactor Leadership Questionnaire's (TMLQ's) Assessment Scales. The research project sought to explore whether collaborative leadership in the policy-making process between the Arizona Subsidized Child Care Program and its key stakeholders actually does exist and, if so, to what extent. The research questions for the dissertation are, as follows: (1) What leadership styles does the Arizona Subsidized Child Care …

Contributors
Scites, Carter Eugene, Cayer, N. Joseph, Denhardt, Janet V, et al.
Created Date
2010

Distributed inference has applications in fields as varied as source localization, evaluation of network quality, and remote monitoring of wildlife habitats. In this dissertation, distributed inference algorithms over multiple-access channels are considered. The performance of these algorithms and the effects of wireless communication channels on the performance are studied. In a first class of problems, distributed inference over fading Gaussian multiple-access channels with amplify-and-forward is considered. Sensors observe a phenomenon and transmit their observations using the amplify-and-forward scheme to a fusion center (FC). Distributed estimation is considered with a single antenna at the FC, where the performance is evaluated using …

Contributors
Banavar, Mahesh Krishna, Tepedelenlioglu, Cihan, Spanias, Andreas, et al.
Created Date
2010

Graphene, a one atomic thick planar sheet of carbon atoms, has a zero gap band structure with a linear dispersion relation. This unique property makes graphene a favorite for physicists and engineers, who are trying to understand the mechanism of charge transport in graphene and using it as channel material for field effect transistor (FET) beyond silicon. Therefore, an in-depth exploring of these electrical properties of graphene is urgent, which is the purpose of this dissertation. In this dissertation, the charge transport and quantum capacitance of graphene were studied. Firstly, the transport properties of back-gated graphene transistor covering by high …

Contributors
Xia, Jilin, Tao, N.J., Ferry, David, et al.
Created Date
2010

The Grand Canyon is one of the most well-recognized natural features in the world, but it is also a cultural landscape. The way that the interpretation of this natural and cultural landscape has changed over time reveals a great deal about what values Americans place on scenic areas (especially national parks), how they want to experience them, what stories they want to be told there, and what cultural values were important in America at the time. This dissertation traces how the interpretation of Grand Canyon has changed over time from its earliest history until the present day, particularly focusing on …

Contributors
Gerke, Sarah, Hirt, Paul, Warren-Findley, Janelle, et al.
Created Date
2010

The research of this dissertation has involved the nanoscale quantitative characterization of patterned magnetic nanostructures and devices using off-axis electron holography and Lorentz microscopy. The investigation focused on different materials of interest, including monolayer Co nanorings, multilayer Co/Cu/Py (Permalloy, Ni81Fe19) spin-valve nanorings, and notched Py nanowires, which were fabricated via a standard electron-beam lithography (EBL) and lift-off process. Magnetization configurations and reversal processes of Co nanorings, with and without slots, were observed. Vortex-controlled switching behavior with stepped hysteresis loops was identified, with clearly defined onion states, vortex states, flux-closure (FC) states, and Omega states. Two distinct switching mechanisms for the …

Contributors
He, Kai, Mccartney, Martha R., Smith, David J., et al.
Created Date
2010

The English Renaissance anthem Christ rising again is a valuable addition to the study of sacred English music during the first one hundred years of the English Reformation (c. 1530s-c.1630s) and provides insight into the theological and musical perspective of English reformers, humanists, and composers. The text of Christ rising again is the only anthem text that was set by the following prominent composers active during the English Reformation: John Sheppard (c.1515-1563), Christopher Tye (c.1505-1573), Thomas Tallis (c. 1505-1585), William Byrd (c.1540-1623), and Thomas Tomkins (1572-1656), as well as an unfinished setting by Thomas Weelkes (c.1576-1623) as well as complete …

Contributors
Olsen, Ryan Allen, Gentry, Gregory, Saucier, Catherine, et al.
Created Date
2010

The associations among teacher-student relationships (e.g., close, conflictual, and dependent), peer victimization, internalizing (e.g., sadness, loneliness, and anxiety), and school attitudes (e.g., avoidance, liking) were investigated in a sample of 153 (76 boys and 77 girls) racially diverse (42% Latino and 46% White) third grade students and their teachers (N = 30: 15 T1; 15 T2). Specifically, a two year longitudinal design was used in which data were gathered using self and teacher questionnaires which were administered during the spring of third grade and then a year later when children were in fourth grade. Findings showed that conflictual and overly …

Contributors
Kremer, Paul Kenneth, Kochenderfer-Ladd, Becky J, Moore, Elsie, et al.
Created Date
2010

There has been much research involving simultaneous monitoring of several correlated quality characteristics that rely on the assumptions of multivariate normality and independence. In real world applications, these assumptions are not always met, particularly when small counts are of interest. In general, the use of normal approximation to the Poisson distribution seems to be justified when the Poisson means are large enough. A new two-sided Multivariate Poisson Exponentially Weighted Moving Average (MPEWMA) control chart is proposed, and the control limits are directly derived from the multivariate Poisson distribution. The MPEWMA and the conventional Multivariate Exponentially Weighted Moving Average (MEWMA) charts …

Contributors
Laungrungrong, Busaba, Montgomery, Douglas, Borror, Connie, et al.
Created Date
2010

In oxygenic photosynthesis, Photosystem I (PSI) and Photosystem II (PSII) are two transmembrane protein complexes that catalyze the main step of energy conversion; the light induced charge separation that drives an electron transfer reaction across the thylakoid membrane. Current knowledge of the structure of PSI and PSII is based on three structures: PSI and PSII from the thermophilic cyanobacterium Thermosynechococcus elonagatus and the PSI/light harvesting complex I (PSI-LHCI) of the plant, Pisum sativum. To improve the knowledge of these important membrane protein complexes from a wider spectrum of photosynthetic organisms, photosynthetic apparatus of the thermo-acidophilic red alga, Galdieria sulphuraria and …

Contributors
Thangaraj, Balakumar, Fromme, Petra, Shock, Everett, et al.
Created Date
2010

Protein folding is essential in all cells, and misfolded proteins cause many diseases. In the Gram-negative bacterium Escherichia coli, protein folding must be carefully controlled during envelope biogenesis to maintain an effective permeability barrier between the cell and its environment. This study explores the relationship between envelope biogenesis and cell stress, and the return to homeostasis during envelope stress. A major player in envelope biogenesis and stress response is the periplasmic protease DegP. Work presented here explores the growth phenotypes of cells lacking degP, including temperature sensitivity and lowered cell viability. Intriguingly, these cells also accumulate novel cytosolic proteins in …

Contributors
Leiser, Owen Paul, Misra, Rajeev, Jacobs, Bertram, et al.
Created Date
2010

A novel small metal-binding protein (SmbP), with only 93 residues and no similarity to other known proteins, has been isolated from the periplasm of Nitrosomonas europaea. It is characterized by its high percentage (17%) of histidines, a motif of ten repeats of seven residues, a four α-helix bundle structure, and a high binding affinity to about six equivalents of Cu2+. The goal of this study is to investigate the Cu2+ binding sites in SmbP and to understand how Cu2+ stabilizes the protein. Preliminary folding experiments indicated that Cu2+ greatly stabilizes SmbP. In this study, protein folding data from circular dichroism …

Contributors
Yan, Qin, Francisco, Wilson A, Allen, James, et al.
Created Date
2010

River and riparian areas are important foraging habitat for insectivorous bats. Numerous studies have shown that aquatic insects provide an important trophic resource to terrestrial consumers, including bats, and are key in regulating population size and species interactions in terrestrial food webs. Yet these studies have generally ignored how structural characteristics of the riverine landscape influence trophic resource availability or how terrestrial consumers respond to ensuing spatial and temporal patterns of trophic resources. Moreover, few studies have examined linkages between a stream's hydrologic regime and the timing and magnitude of aquatic insect availability. The main objective of my dissertation is …

Contributors
Hagen, Elizabeth M, Sabo, John L, Fisher, Stuart G, et al.
Created Date
2010

The aim of this project is an exploration of health literacy as found in the papal encyclical Humanae Vitae. The rhetoric of the Catholic Church clearly demonstrates its creation and promotion of moral authority over the health practices of the faithful. As such, the encyclical illustrates the means by which Catholic conscience dictates corporal existence. Through its denunciation of the evolving social mores of the 1960s, its condemnation of contraception, and its encouragement in the reception of natural law, the document offers the merits of Catholic marriage as guiding principles beneficial to all good men. Ultimately, group morality is conveyed …

Contributors
Taylor-Bledsoe, Hedra, Goggin, Maureen, Goggin, Peter, et al.
Created Date
2010

As the world energy demand increases, semiconductor devices with high energy conversion efficiency become more and more desirable. The energy conversion consists of two distinct processes, namely energy generation and usage. In this dissertation, novel multi-junction solar cells and light emitting diodes (LEDs) are proposed and studied for high energy conversion efficiency in both processes, respectively. The first half of this dissertation discusses the practically achievable energy conversion efficiency limit of solar cells. Since the demonstration of the Si solar cell in 1954, the performance of solar cells has been improved tremendously and recently reached 41.6% energy conversion efficiency. However, …

Contributors
Wu, Songnan, Zhang, Yong-Hang, Menendez, Jose, et al.
Created Date
2010

The Juglandaceae (walnuts, hickories, pecans) has one of the best-documented fossil records in the Northern Hemisphere. The oldest modern genus, Cyclocarya, today restricted to China, first appears in the late Paleocene (57 ma) of North Dakota, USA. Unlike walnuts and pecans that produce edible fruits dispersed by mammals, Cyclocarya fruits are small nutlets surrounded by a prominent circular wing, and are thought to be wind- or water-dispersed. The current study provides the first evidence that fossil fruits were different from modern forms in the number and organization of their attachment to reproductive branches, and in their anatomical structure. Unlike the …

Contributors
Taylor, Witt, Pigg, Kathleen B, Wojciechowski, Martin F, et al.
Created Date
2010

Today, many wireless networks are single-channel systems. However, as the interest in wireless services increases, the contention by nodes to occupy the medium is more intense and interference worsens. One direction with the potential to increase system throughput is multi-channel systems. Multi-channel systems have been shown to reduce collisions and increase concurrency thus producing better bandwidth usage. However, the well-known hidden- and exposed-terminal problems inherited from single-channel systems remain, and a new channel selection problem is introduced. In this dissertation, Multi-channel medium access control (MAC) protocols are proposed for mobile ad hoc networks (MANETs) for nodes equipped with a single …

Contributors
Moon, Yuhan, Syrotiuk, Violet R, Huang, Dijiang, et al.
Created Date
2010

Magnetic resonance (MR) imaging with data acquisition on a non-rectangular grid permits a variety of approaches to cover k-space. This flexibility can be exploited to achieve clinically relevant characteristics -- fast yet full coverage for short scan times, center out schemes for short Te, over-sampled k-space for robustness to motion, long acquisition time for improved signal-to-noise (SNR) performance and benign under-sampling (aliasing) artifact. This dissertation presents advances in Periodically Rotated Overlapping ParallEL Lines with Enhanced Reconstruction (PROPELLER) trajectory design and improved reconstruction for spiral imaging. Scan time in PROPELLER imaging can be reduced by tailoring the trajectory to the required …

Contributors
Devaraj, Ajit, Pipe, James G, Karam, Lina J, et al.
Created Date
2010