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

Digital Commons Network™

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

Electronic Theses and Dissertations

Discipline
Institution
Keyword
Publication Year
File Type

Articles 11611 - 11640 of 35667

Full-Text Articles in Entire DC Network

The Element Spectrum Of A Graph, Milisha Hart-Simmons Jan 2017

The Element Spectrum Of A Graph, Milisha Hart-Simmons

Electronic Theses and Dissertations

Characterizations of graphs and matroids that have cycles or circuits of specified cardinality have been given by authors including Edmonds, Junior, Lemos, Murty, Reid, Young, and Wu. In particular, a matroid with circuits of a single cardinality is called a Matroid Design. We consider a generalization of this problem by assigning a weight function to the edges of a graph. We characterize when it is possible to assign a positive integer value weight function to a simple 3-connected graph G such that the graph G contains an edge that is only in cycles of two different weights. For example, as …

Go to article

Mechanical And Computational Evaluation Of Cementitious Materials With Hollow Glass Microsphere Inclusions, Zachary J. Wallace Jan 2017

Mechanical And Computational Evaluation Of Cementitious Materials With Hollow Glass Microsphere Inclusions, Zachary J. Wallace

Electronic Theses and Dissertations

The effect of volumetric replacement of cementitious materials by an inert filler known as hollow glass microspheres on elastic properties is evaluated in this study through a combined computational and experimental approach. This approach considered the variation in properties of type I Portland cement for 0, 5, 10, and 15% volume fractions of two kind of glass microspheres; one was high density with high crushing strength, and the other with a relative lower density. Using a suite of software called Virtual Cement and Concrete Testing Laboratory (VCCTL), the microstructural details were determined for 80% degree of hydration of the cement …

Go to article

Orthosymmetric Maps And Polynomial Valuations, Stephan Christopher Roberts Jan 2017

Orthosymmetric Maps And Polynomial Valuations, Stephan Christopher Roberts

Electronic Theses and Dissertations

We present a characterization of orthogonally additive polynomials on vector lattices as orthosymmetric multilinear maps. Our proof avoids partitionaly orthosymmetric maps and results that represent orthogonally additive polynomials as linear maps on a power. We also prove band characterizations for order bounded polynomial valuations and for order continuous polynomials of order bounded variation. Finally, we use polynomial valuations to prove that a certain restriction of the Arens extension of a bounded orthosymmetric multilinear map is orthosymmetric.

Go to article

Phase Stability In Cobalt-Based L12 Quaternary Intermetallics From Density Functional Theory, William Earwood Jan 2017

Phase Stability In Cobalt-Based L12 Quaternary Intermetallics From Density Functional Theory, William Earwood

Electronic Theses and Dissertations

The effects of higher order alloying additions (Mo, Ti, Ta, Hf, Fe, V) on the phase stability of L12 (γ’) intermetallics have been studied via first-principles. A 32 atom special-quasi-random structure was used to mimic the experimentally observed solid solution sublattice. Density of states distributions were generated in order to directly observe the impact of alloying additions on the position of the pseudogap and number of states at the Fermi level. Charge density differences across the supercell were visualized to analyze changes in bonding behavior. The results indicate that substitutions of Ti, Ta, and Hf in place of the central …

Go to article

The Effects Of Participation In Band On Band Music Preference, Benny Ratliff Jan 2017

The Effects Of Participation In Band On Band Music Preference, Benny Ratliff

Electronic Theses and Dissertations

This study focuses on band music preference, and specifically, how this preference is affected by participation in band. With this knowledge I argue that band directors can select repertoire that both challenges and engages students while still being enjoyable to perform. Despite the existence of studies that consider the many factors that affect music preference, no study has focused exclusively on band music, which remains a vital part of music education in the United States. Students from three high schools rated ten 30-second examples of concert music on a Likert-type scale. I placed these musical examples into five self-defined categories: …

Go to article

Short-Term Study Abroad And Dialect Acquisition: An Analysis Of The Acquisition Of The Ustedes-Vosotros Verbal Mixing By Study Abroad L2 Learners Of Spanish, Samuel Collins Hearn Jan 2017

Short-Term Study Abroad And Dialect Acquisition: An Analysis Of The Acquisition Of The Ustedes-Vosotros Verbal Mixing By Study Abroad L2 Learners Of Spanish, Samuel Collins Hearn

Electronic Theses and Dissertations

Study abroad is often idealized as a panacea for language learning. The growth in the popularity of studying abroad has led to the proliferation of programs of various lengths, among which is the short-term study abroad program, typically lasting around one month. Much needed investigation remains regarding the effectiveness of short-term study abroad programs, and this study aims to understand the level of effectiveness through the lens of dialect feature acquisition. Specifically, in southwestern Andalucía, there exists a phenomenon in which local speakers of Spanish mix the pronoun ustedes with the verbal conjugation of the second person plural pronoun, vosotros. …

Go to article

The Effect Of A Researcher Composed Mouthpiece Buzzing Routine On The Intonation And Tone Quality Of Beginning Band Brass Students, Jason William Beghtol Jan 2017

The Effect Of A Researcher Composed Mouthpiece Buzzing Routine On The Intonation And Tone Quality Of Beginning Band Brass Students, Jason William Beghtol

Electronic Theses and Dissertations

The present study is an investigation of the effect of an author composed mouthpiece buzzing routine modeled by the teacher on beginning band brass students’ intonation and tone quality. The subjects (N = 43) were sixth grade beginning band brass students from a large band program in the northeast region of Mississippi. The experimental group (n = 27) buzzed a daily routine modeled by their instructor at the beginning of each class period. The control group (n = 16) received no treatment and proceeded through normal classroom activities. The duration of the instructional period was ten weeks. This study utilized …

Go to article

Preparation And Characterization Of Acitretin-Loaded Niosomes For Psoriasis Treatment, Marey Abdulmootani Almaghrabi Jan 2017

Preparation And Characterization Of Acitretin-Loaded Niosomes For Psoriasis Treatment, Marey Abdulmootani Almaghrabi

Electronic Theses and Dissertations

Psoriasis is a chronic skin disease that manifests as impaired epidermal differentiation. The disease is typically treated with acitretin, an effective oral cytotoxic agent. However, due to its side effects, its use is highly limited. Topical delivery of acitretin may decrease the systemic toxicity and increase the drug’s bioavailability at the pathological site. However, this approach has some limitations. The decrease in skin integrity due to psoriasis could lead to escape of drug into the systemic circulation system and consequently compromise the topical approach. Also, the high instability of acitretin in the presence of heat could limit its topical application. …

Go to article

A “Human Endeavor”: Killing In Contemporary U.S. Combat Narratives, William Mackenzie Jan 2017

A “Human Endeavor”: Killing In Contemporary U.S. Combat Narratives, William Mackenzie

Electronic Theses and Dissertations

This PH.D dissertation aims to develop a 3-D numerical model of dam-break flows on movable beds. Three tasks are defined to accomplish the goal of this study. The first task is developing a 3-D hydrodynamic model to simulate dam-break flow on fixed beds with simple geometry and test the water surface tracking technique. This model solves the Reynolds-averaged Navier-Stokes (RANS) equations using a finite-difference method on rectilinear, staggered grids. The volume-of-fluid (VOF) technique with SOLA-VOF advection scheme is used to capture the free surface motion. The developed model is tested using several experimental dam-break flows and the VOF technique is …

Go to article

Diplomacy Of Pirates: Foreign Relations And Changes In The Legal Treatment Of Piracy Under Henry Viii, Jamie Deanna Sessions Jan 2017

Diplomacy Of Pirates: Foreign Relations And Changes In The Legal Treatment Of Piracy Under Henry Viii, Jamie Deanna Sessions

Electronic Theses and Dissertations

No abstract provided.

Go to article

Are You Ready? A Proposed Framework For The Assessment Of Digital Forensic Readiness, Andres Felipe Diaz Lopez Jan 2017

Are You Ready? A Proposed Framework For The Assessment Of Digital Forensic Readiness, Andres Felipe Diaz Lopez

Electronic Theses and Dissertations

This dissertation develops a framework to assess Digital Forensic Readiness (DFR) in organizations. DFR is the state of preparedness to obtain, understand, and present digital evidence when needed. This research collects indicators of digital forensic readiness from a systematic literature review. More than one thousand indicators were found and semantically analyzed to identify the dimensions to where they belong. These dimensions were subjected to a q-sort test and validated using association rules, producing a preliminary framework of DFR for practitioners. By classifying these indicators into dimensions, it was possible to distill them into 71 variables further classified into either extant …

Go to article

A Little Difference Makes A Big Difference: Essays On The Link Between Top Management Team Traits And Strategic Marketing Decisions, Cameron Duncan Nicol Jan 2017

A Little Difference Makes A Big Difference: Essays On The Link Between Top Management Team Traits And Strategic Marketing Decisions, Cameron Duncan Nicol

Electronic Theses and Dissertations

The importance of marketing is growing. This is not just a perception: CEOs appear to see its importance as well. Despite the increase in the understood importance of marketing, there still remains a relatively scant amount of research on the impact that can be had by top management team members on a firm's strategic marketing outcomes. The research which follows explores an important question that has previously been comparatively neglected by researchers: what top management team individual differences can impact the strategic marketing outcomes of the firm? The first essay, based on a multi-industry sample of 325 publicly listed fortune …

Go to article

Band Gap Engineering Of Titania Systems Purposed For Photocatalytic Activity, Cameron Robert Thurston Jan 2017

Band Gap Engineering Of Titania Systems Purposed For Photocatalytic Activity, Cameron Robert Thurston

Electronic Theses and Dissertations

Ab initio computer aided design drastically increases candidate population for highly specified material discovery and selection. These simulations, carried out through a first-principles computational approach, accurately extrapolate material properties and behavior. Titanium dioxide (tio2) is one such material that stands to gain a great deal from the use of these simulations. In its anatase form, titania (tio2) has been found to exhibit a band gap nearing 3.2 ev. If titania is to become a viable alternative to other contemporary photoactive materials exhibiting band gaps better suited for the solar spectrum, then the band gap must be subsequently reduced. To lower …

Go to article

Education Of Women In Seventeenth- And Eighteenth-Century French Literature, Armelle Tsafack Wiggins Jan 2017

Education Of Women In Seventeenth- And Eighteenth-Century French Literature, Armelle Tsafack Wiggins

Electronic Theses and Dissertations

No abstract provided.

Go to article

Burden Of Depression Among Individuals With Irritable Bowel Syndrome(Ibs) In The Medicaid Population, Kaustuv Bhattacharya Jan 2017

Burden Of Depression Among Individuals With Irritable Bowel Syndrome(Ibs) In The Medicaid Population, Kaustuv Bhattacharya

Electronic Theses and Dissertations

Objective: to determine the period prevalence of IBS and comorbid depression among individuals with Irritable Bowel Syndrome (IBS) in multi-state Medicaid population, and to assess the impact of comorbid depression on healthcare utilization and costs among individuals with IBS enrolled in fee-for-service Medicaid program. Methods: a retrospective cohort study was conducted using 2006-2008 Medicaid analytic extract files for 39 states. Beneficiaries with IBS were identified based on any medical claims for the disease. Beneficiaries with one or more medical claims for depression during the study period were considered to have had comorbid depression. For each beneficiary, the first claim for …

Go to article

Consciousness In Comatose Clowns: No Funny Business, Mary Gregg Jan 2017

Consciousness In Comatose Clowns: No Funny Business, Mary Gregg

Electronic Theses and Dissertations

Consider the tragic case of four circus clowns whose pie-to-the-face gag effectively knocks each one into a cream-pie coma. In each of the four cases, motor capacities (voluntary speech, limb movement, etc.) Are not available to the patient's conscious control. Although none of our apparently comatose clowns have voluntary motor capacities, each has a unique set of internal and external activity going on. In other words, each of our clowns (bozo, chuckles, wiggles, and krusty, respectively), now sits in a vegetative state. Now, there's a problem. Sometimes comatose patients are conscious, so there's a big philosophical and empirical issue going …

Go to article

A Thermal Enclosure Prototype For A Suspended Inertial Sensor, Mohammad Afrough Jan 2017

A Thermal Enclosure Prototype For A Suspended Inertial Sensor, Mohammad Afrough

Electronic Theses and Dissertations

Although Ligo has detected six gravitational waves so far, people are still conducting research to improve the sensitivity of the detectors in different aspects. At low frequency band, one of the main sources of noise is seismic vibration. Lowering the noise level in this band, helps us to follow the coalescence of compact binary systems earlier in their transformation and increase the signal-to-noise ratio. It also allows us to detect merger of more massive objects. Hence, an isolation system is required to reduce the seismic noise. As a part of isolation system (which can be a passive or an active …

Go to article

Citizen Security And Democratization In Latin America: Implications Of Law Enforcement Reforms And Demilitarization, Fernanda Andrea Gutierrez Merino Jan 2017

Citizen Security And Democratization In Latin America: Implications Of Law Enforcement Reforms And Demilitarization, Fernanda Andrea Gutierrez Merino

Electronic Theses and Dissertations

Latin American region has transitioned to democracy in the last forty-thirty years and along with many policy reforms, citizen security has not been left behind. As these changes evolve, the relationship between internal security and the development of a stable democracy has acquired a great importance in terms of the factors that contribute to a free world. The purpose of this research is to look at how security policy and policing in Argentina, Chile, el Salvador, and Mexico have contributed to the democratization process in regards to how the recent reforms in law enforcement in the region have created favorable …

Go to article

Cultural Bias In English Language Arts Curriculum And Its Effect On African American And Spanish-Speaking English Language Learners In A Municipal School, Shelia Yvette Morgan Jan 2017

Cultural Bias In English Language Arts Curriculum And Its Effect On African American And Spanish-Speaking English Language Learners In A Municipal School, Shelia Yvette Morgan

Electronic Theses and Dissertations

Many rightly assume that textbooks prior to 1970 in the United States were not culturally responsive to African Americans, and that assumption includes that some research has been conducted on culturally responsive textbooks and African Americans since the Civil Rights Act of 1964. However, even in today's 21st century market, textbook editors and publishers continue to manufacture textbooks that now include African Americans and other ethnicities, but only occasionally in roles that build up the cultural capital of those people groups. In the 21st century there is an urgent need for culturally responsive teaching, "an approach that empowers students intellectually, …

Go to article

Discreet Only: An Exploration Of Discreet Practices On Grindr In A Mississippi Town, Ian Michael Whalen Jan 2017

Discreet Only: An Exploration Of Discreet Practices On Grindr In A Mississippi Town, Ian Michael Whalen

Electronic Theses and Dissertations

No abstract provided.

Go to article

Black Space On A White Campus; Exploring The Relationship Between African American Students And The Physical Structure Of The University Of Mississippi, Drew Ford Jan 2017

Black Space On A White Campus; Exploring The Relationship Between African American Students And The Physical Structure Of The University Of Mississippi, Drew Ford

Electronic Theses and Dissertations

At the University of Mississippi, despite institutional efforts to distance the present from the past, issues of race continue to influence the campus and the experiences of African-American students. This thesis examines the relationship between the physical structure of the university of Mississippi campus and African American students, and investigates the creation of "counter-publics." this thesis analyzes works in critical race theory, higher education, and social geography to argue that the "whiteness" of the university of Mississippi campus creates social and educational barriers for African American students. Furthermore, along with being surrounded by "whiteness," African American students lack any physical …

Go to article

Speak'st, Art Sound: The Material Voice In Early Modern England, Nathaniel Philip Likert Jan 2017

Speak'st, Art Sound: The Material Voice In Early Modern England, Nathaniel Philip Likert

Electronic Theses and Dissertations

This thesis argues that early moderns conceived of speech as a material phenomenon; voice struck out from bodies into environments. Early modern voices thus participate in what sound studies scholars call the soundscape, which I link to current new materialist and ecological theories of network and assemblage. Within this soundscape, I pay special attention to the role of language as a semantic system of meaning. Current ecological criticism takes for granted the utter “flatness” of ontology, and as such discards the question of human language so central to previous deconstructive and discursive scholarship. My thesis attempts to account for the …

Go to article

Biochemical And Molecular Assessment Of Toxicity Of Primaquine Metabolites On Erythrocytes, Jagrati Jain Jan 2017

Biochemical And Molecular Assessment Of Toxicity Of Primaquine Metabolites On Erythrocytes, Jagrati Jain

Electronic Theses and Dissertations

The 8-aminoquinoline (8AQ) antimalarial drug primaquine (PQ) is the only drug for prevention of malaria relapse. Moreover, PQ also has gametocytocidal activity against Plasmodium falciparum. However, clinical use of PQ has been limited due to its hemolytic toxicity, especially in glucose-6-phosphate dehydrogenase deficient (G6PDd) individuals. Phenolic and quinone metabolites generated via cytochrome P450-dependent pathways appear to be responsible for hemolytic effects of PQ. However, the mechanism for the hemolytic toxicity of PQ is still poorly understood. To explore the mechanism, targets, and pathways for toxicity of PQ, normal and G6PDd human erythrocytes were treated with the potential hemotoxic metabolites of …

Go to article

Nucleic Acid Clamp-Mediated Transcriptional And Translational Modulation Of Oncogenes Via The Stabilization Of G-Quadruplexes, Taisen Hao Jan 2017

Nucleic Acid Clamp-Mediated Transcriptional And Translational Modulation Of Oncogenes Via The Stabilization Of G-Quadruplexes, Taisen Hao

Electronic Theses and Dissertations

G-quadruplexes (G4s) are non-canonical secondary nucleic acid structures that exit in various biologically important regions within a cell, such as the promoters of DNA, 5’-Untranslated regions (UTR) of mRNA and telomeres. These secondary structures tend to cluster around 1 kb from transcriptional start sites across all human chromosomes in addition to at telomeric regions. Extensive efforts from many research groups have been dedicated to targeting G4s in oncogenic promoters, telomeres, and 5’-UTRs with traditional small molecules. However, most small molecules recognizing multiple G4s raising potential issues in terms of utilizing these small molecules clinically. Therefore, we developed a novel nucleic …

Go to article

Social Links Abroad: The Role Of Social Identity Theory In The Formation Of Public Opinion Towards U.S. Foreign Policy, Antwain Hannibal Leach Jan 2017

Social Links Abroad: The Role Of Social Identity Theory In The Formation Of Public Opinion Towards U.S. Foreign Policy, Antwain Hannibal Leach

Electronic Theses and Dissertations

Even though U.S. foreign policy has gained considerable traction over the years in terms of a serious issue domain at both the mass level and within the academy, we are still just beginning to understand how the American people inform their views in this area of government activity. We often notice that support among the American public is mixed when it comes to U.S. foreign policy standing to benefit different groups. Americans tend to be supportive of foreign policies that may benefit one group of people while giving lukewarm support if another group of people may benefit. Prior studies on …

Go to article

Twinless, Molly Mccully Brown Jan 2017

Twinless, Molly Mccully Brown

Electronic Theses and Dissertations

This manuscript is concerned with the loss of my identical twin sister, who died when we were infants. The collection as a whole uses biographical experience to engage with issues of identity, grief, sisterhood, and selfhood. It’s interested in the ways that spiritual experience is borne out in the body, and in interrogating the manner in which we’re all made and marked by our own particular hieroglyphs of loss.

Go to article

Historical Refuges And Recolonization Routes In The Southern Appalachian Mountains, Inferred Through Phylogeographic Analysis Of The Spotted Wintergreen (Chimaphila Maculata), John Daniel Banusiewicz Jan 2017

Historical Refuges And Recolonization Routes In The Southern Appalachian Mountains, Inferred Through Phylogeographic Analysis Of The Spotted Wintergreen (Chimaphila Maculata), John Daniel Banusiewicz

Electronic Theses and Dissertations

Phylogeography has recently benefited from incorporation of coalescent modeling to test competing scenarios of population history of a species. Ecological niche modeling has also been useful in inferring areas of likely suitable habitat during past climate conditions. Several studies have examined the population history of biota in the Southern Appalachian Mountains and how they responded to climate change associated with the end of the Last Glacial Maximum (~18,000 years ago), though few studies have focused on understory plants. This study redressed that knowledge gap thorough examination of the phylogeographic history of the understory plant Chimaphila maculata, which is native to …

Go to article

An Evaluation Of The Mississippi Recipes For Success Resource From The Perspective Of Child Nutrition Directors, Chelsea L. Bell Jan 2017

An Evaluation Of The Mississippi Recipes For Success Resource From The Perspective Of Child Nutrition Directors, Chelsea L. Bell

Electronic Theses and Dissertations

The Mississippi Recipes for Success (MRS), A Guide for Child Nutrition Programs provides printed and online resources for child nutrition directors. These resources include recipes and methods to assist directors in effectively implementing United States Department of Agriculture (USDA) nutrition standards. The purpose of this study was to investigate if child nutrition directors utilize these resources, as well as assess child nutrition directors’ perceptions of the helpfulness, satisfaction, and importance of the various components of the online and 2014 printed versions of the MRS. Data collection for this study involved an online survey that evaluated directors’ usage of the resources …

Go to article

Contribution Of Specific Amino Acids To Calcium-Dependent Dimerization Of Epithelial Cadherin, Xiaoyun Z. Howard Jan 2017

Contribution Of Specific Amino Acids To Calcium-Dependent Dimerization Of Epithelial Cadherin, Xiaoyun Z. Howard

Electronic Theses and Dissertations

Cadherins are calcium-dependent molecules that play essential roles in embryonic development, tissue morphogenesis, and cancer progression. Epithelial (E-) cadherin is present at adherens junctions, structures that are important for maintaining tissue integrity. At adherens junctions, cell–cell adhesion complexes are formed as clusters of cadherin dimers through strand-swapped dimerization between two interacting protomers from adherent cells. Recently, a number of studies of dimer formation of E-cadherin supported a two-step adhesive binding model. First, an inter-molecular initial encounter complex (X-dimer) forms at the linker region of the first two extracellular domains, EC1 and EC2. Next, strand-swap dimerization occurs via exchange or ''swap'' …

Go to article

African American Female Principals Of Urban High Schools And Their Negotiation Of Work And Family Conflicts, April Smith Jan 2017

African American Female Principals Of Urban High Schools And Their Negotiation Of Work And Family Conflicts, April Smith

Electronic Theses and Dissertations

Women account for approximately 60 percent of all high school teachers, but account for barely 30 percent of the principals of these schools. When the data is disaggregated to only examine African American women in education, the disproportion widens between women and men in leadership. As the demographics of the population in the United States change, there is expanding need for more culturally, ethnically, racially diverse leaders in the public schools. African American women because of their experiences often model transformational leadership with oppression regarding their race and gender. Such leadership is beneficial to minority students, who now make up …

Go to article

First Prev Next Last