Digital Commons Network^™

A Partial Replication Load Balancing Technique For Distributed Data As A Service On The Cloud, Klaithem Saeed Al Nuaimi

Dissertations

Data as a service (DaaS) is an important model on the Cloud, as DaaS provides clients with different types of large files and data sets in fields like finance, science, health, geography, astronomy, and many others. This includes all types of files with varying sizes from a few kilobytes to hundreds of terabytes. DaaS can be implemented and provided using multiple data centers located at different locations and usually connected via the Internet. When data is provided using multiple data centers it is referred to as distributed DaaS. DaaS providers must ensure that their services are fast, reliable, and efficient. …

Comparative Phylogeography And Demographic Histories Of West Indian Birds, Maria Wilhelmina Barbosa De Oliveira Pil

Dissertations

My dissertation investigates the demographic history of multiple island populations of several Caribbean bird species through an assessment of contemporary genetic diversity, while inferring relationships between the comparative demography of individual island populations and characteristics of the islands and species. The sizes and distributions of populations vary over time, and episodes of expansion and contraction create characteristic patterns of genetic variation within and among populations. Consequently, contemporary patterns of genetic diversity open a window onto demographic and phylogeographic history. The strength of the study lies in the scale and comprehensiveness of the analysis, encompassing most of the West Indian islands …

Investigating Correlation Between Availability Of Free Time Facilities For Pupils And Their Educational Achievements While Exploiting Linked Data And Volunteered Geographic Information, Peter Kovar

Dissertations

The advent of Semantic Web as an extension of the current World Wide Web (Web) brings methods and technologies to structure the data, interlink it with other related data and capture its semantics. This holds for new data to be published as well as for the data already on the Web. The interlinking of data led to definition of a linked data paradigm and the Semantic Web allows for creating a Global Linked Data Space. The linked data sets can combine data coming from heterogeneous sources. Using ontologies the meaning in data from different areas of interest can be compared …

Can Wikipedia Article Traffic Statistics Be Used To Verify A Technical Indicator? An Exploration Into The Correlation Between Wikipedia Article Traffic Statistics And The Coppock Technical Indicator., Cormac O'Connor

Dissertations

Recent studies have shown that, through the quantification of Wikipedia Usage Patterns as a result of information gathering, stock market moves can be predicted (Moat et al 2013). There was also research performed to determine the predictive nature of Wikipedia Data to predict movie box office success (Mestyan et al. 2013). The goal of any investor, in order to maximize the return of their investments, is to have an edge over other participants in the markets. Several tools and techniques have been used over the years to fulfil this, some proving to generate a consistent stream of income (Gillen 2012). …

Signaling Between Two Sensor Kinases Controls Biofilms And Host Colonization In A Bacterial Symbiont, Allison N. Norsworthy

Dissertations

Organisms within all domains of life must acclimate to fluctuating environments to survive. To do this, cells utilize sensory circuits, which function to connect environmental stimuli to an intracellular response. One common sensory pathway utilized by bacteria is two-component signaling (TCS), composed of an environmental sensor (the sensor kinase, SK) and a cognate, intracellular effector (the response regulator, RR). The marine bacterium Vibrio fischeri uses an elaborate TCS phosphorelay containing a hybrid SK, RscS, and two RRs, SypE and SypG, to colonize its natural squid host, Euprymna scolopes. This TCS pathway regulates V. fischeri's ability to form a biofilm, or …

Growing Diversity: Urban Renewal, Community Activism, And The Politics Of Cultural Diversity In Uptown Chicago, 1940-1970, Devin Hunter

Dissertations

“Growing Diversity: Urban Renewal, Community Activism, and the Politics of Cultural Diversity in Uptown Chicago, 1940-1971” examines the development of one of the nation’s most culturally and economically diverse neighborhoods. This character resulted from a historical process centered on the shifting politics of cultural diversity itself. Boosters, urban renewal and redevelopment advocates, community activists, and low-income residents defined diversity on their own—often competing—terms. These dynamics manifested in urban planning and architecture, working-class and middle-class leisure, radical community organizing, and film. Beyond the demographic development of social and economic heterogeneity, “Growing Diversity” traces the ways that historical processes influenced the ways …

Curriculum-Related Trends In K-12 Adventist Education In The North American Division: An Inductive Analysis Of The Profile Surveys--1987-2007, Monica Desir

Dissertations

Problem

For several years, curriculum developers in the North American Division (NAD) have used the biennial results from the Profile Surveys to help guide their decisions in terms of educational policy. While some comparisons have been made between individual studies and ensuing results have been used to influence curriculum development, overall trends in the 10 studies up to 2007 have not been identified. As the studies increased in number, an integrative effort was needed in order help reveal the trends in the combined results and to make them available in more compact form for use by curriculum developers.

Method

The …

Self-Perceived Stress Of Undergraduate Students Before And After Participation In A Breathing Meditation Intervention: A Mixed Methods Study, Cindy Oneida Sloan

Dissertations

This mixed methods study examined the effects of an eight-week breathing meditation intervention on the self-perceived stress of undergraduate students. Previous research suggests meditation is an effective strategy to alleviate stress and stress-related symptomatology (Baer, 2003; Conley, Travers, & Bryant, 2013; Shapiro, Brown & Astin, 2011). Forty-one undergraduate student volunteers participated in the study and were randomized into either an intervention group or control group. The intervention group met once per week for eight weeks and participated in a nine minute guided breathing meditation. At the conclusion of eight weeks participants, when compared with the control group, reported significantly lower …

Uncertainty Before And After Faith: The Dynamics Of Belief In Theology And Literature, Brent Little

Dissertations

Although there has been much interdisciplinary scholarship surrounding the influence of various novelists' Catholic beliefs upon their work, there has been relatively little discussion about the nature of faith that emerges in their novels. For instance, is faith portrayed primarily as assent to conceptual statements of belief?

This dissertation will argue that faith, as portrayed by various Catholic novelists, is fundamentally a person's imaginative orientation to trust and hope in the presence of God's grace in creation and human life. I will approach this issue through the category of uncertainty, specifically uncertainty's relationship to faith, as this relationship emerges in …

Public Relations: Diaspora, Media, And The State(S) Of American Literature, Nathan Allen Jung

Dissertations

Like any good public relations campaign, this dissertation aims to offer a persuasive interpretation of certain key facts. The facts, as I see them, are as follows: first, a great number of contemporary novels and poems explore the personal and social consequences of diasporic migration. Second, these texts, along with their print and electronic paratexts, share a pervasive interest in media. And third, these works are rarely read in conversation with one another, despite their mutual concern for migration and media. Owing to this last point in particular, scholarship has failed to fully address the broader media theories developed in …

Social Justice And Ecological Responsibility: A Moral Case For International Collaborative Action On Environmental Degradation And Climate-Induced Displacement, James Stephen Mastaler

Dissertations

The contemporary ecological crisis, manifest in human-induced climate change, is a powerful form of structural violence against the poorest communities on the planet. As such, my research resides at the nexus of structural poverty, gender disparity, ecological degradation, and climate-induced displacement. The social justice implications emerging from this nexus require responsible moral deliberation and discernment over the international community's role in minimizing the human tragedies accompanying forced displacement and migration. While asserting the interconnectedness and dependency of all life upon mutual flourishing, responsible decision-making expands the range of felt moral concern to include ecological flourishing. Social justice is only possible …

California Community Colleges Child Development Laboratory Schools, Shari Yates

Dissertations

Community colleges in California are the primary source for preparing the early childhood care and education (ECE) workforce. The California child development lab school mission is to prepare ECE practitioners, provide a laboratory where college students can study and research child development/education, and offer a service to children and families. There are many benefits that are derived from laboratory schools but many community college lab schools have been reduced and/or closed over the past three years. The purposes of this Delphi study were (a) to examine the most pressing issues, problems and barriers facing California community colleges child development labs …

Development Of Workforce Skills: Student Perceptions Of Mentoring In First Robotics, Katie Joan Veal Wallace

Dissertations

In today’s global economy, new workforce competencies are needed for success at both individual and societal levels. The new workforce skills extend beyond basic reading, writing, and arithmetic to include higher order processes such as critical thinking and problem solving. Technical job opportunities have grown by approximately 17%, yet the United States continues to decline in science, technology, engineering and mathematics (STEM) disciplines. Further, U.S. students earn average or below average test scores when compared to other developed countries. Researchers cite the need to incorporate the learning of workplace skills into secondary education curriculum, and advocates call for new teaching …

High School Graduation Coaches: Supporting At-Risk High School Students, Heather Elise Dunnavant

Dissertations

This study investigated the effectiveness of a new dropout prevention program, Project WALK, which was launched at a low-income high school in Missouri during the 2012–2013 school year. After examining alarming dropout statistics, Washington High School chose 40 students to participate in a new program, Project WALK, which was designed to use graduation coaches to improve at-risk students’ performance. The program’s six graduation coaches formed relationships with at-risk students, monitored student progress, and consistently communicated with parents, teachers, and school administrators about the at-risk students. The researcher, an administrator at the school, gathered quantitative data to measure the effects of …

An Lntegrated Approach (Remote Sensing, Gls, Engineering, Datamining) For Modeling, Assessing And Mitigating Slope Stability Hazards In Mountainous Environments, Racha El Kadiri

Dissertations

Mountainous areas are quite often subjected to hazards related to their steep relief and intense precipitation events. These hazards (e.g., debris flows, mudflows, rockfalls) pose serious threats to settlements and structures that support transportation, agriculture, tourism, and other economic activities.

This study applies and develops a wide range of methodologies and tools that take advantage of readily available remote-sensing datasets, geographic information system technologies, and artificial intelligence techniques. The developed approaches allow the characterization of both spatial and temporal conditions that controlled mass movement occurrences and use these characteristics to model and mitigate future occurrences. The Jazan area in the …

The Relationship Between Racial Ambiguity And Self-Concept In Multiracial Lndividuals, James R. Jobe

Dissertations

The present study examined the relationship between racial ambiguity and self-concept in multiracial individuals. Research as to the experiences of multiracial people is limited both in frequency and in scope. As multiracial individuals continue to grow in number, understanding their unique experiences will become more important to social scientists (e.g., psychologists, anthropologists, sociologists) across disciplines. The current study examined two hypotheses and explored a series of additional relationships. The theoretical framework that was utilized for this study was Symbolic Interaction Theory. This theory provided an effective way to understand how people use and make meaning of their surrounding social contexts …

A Comparison Of Fifth Grade Mathematics Curriculum Materials, Michael E. Starks Sr.

Dissertations

In the USA, the No Child Left Behind Act of 2001 resulted in requirements placed on school districts to show student achievement in mathematics, based on measured adequate yearly progress. This caused school districts to search for standards based programs that improve mathematics learning. A quantitative multi-year study was used to compare the state-assessed achievement levels of 1,695 fifth-grade Midwestern children in the state of Missouri, who learned mathematics from two different curriculum-delivery programs, EveryDay Mathematics and EnVision Mathematics. A 2 by 2 by 8 research design was used through the choice of two elementary schools using EveryDay Mathematics and …

Into The Looking Glass: Undergraduate Students' Integrating And Illuminating Their Wisdom And Experiences As Global Citizens, Sarah Jean Wyscaver

Dissertations

Five undergraduate students shared stories about the wisdom they gained while working to integrate their global citizen identity into their every day lives. Using a postcolonial theoretical framework and portraiture methodology, this inquiry followed participants during a 13-day global service-learning experience in Yucatán, Mexico. Through on-site observations, creative representations, and two in-depth interviews, provide new understandings about the ways in which five diverse college students integrate and illuminate their global citizen identities emerged. Participant portraits revealed themes based on global citizen identity integration as it relates to personal history, ethnic legacy, and educational narratives among participations. Further analysis revealed participants’ …

Teacher And Administrator Perceptions Of The Implementation Of The Teacher Incentive Fund (Tif) Grant In Mississippi Pilot Schools, Albert William Carter

Dissertations

The purpose of this research study was to assess administrators and teachers’ perceptions of the key components of the Mississippi Teacher Incentive Fund (TIF) grant in Mississippi pilot schools. The study examines the difference in perceptions between administrators and teachers. The study also investigated if there was a relationship with the TIF grant and student achievement by comparing the percent of students who scored a minimum of proficient on the MCT2 in TIF schools before and after the grant. Achievement was also examined by comparing percent of proficiency of TIF schools with comparable, non-TIF Mississippi schools.

The participants in the …

The Relationship Of Postsecondary Outcomes For Students With Disabilities In Kentucky Schools, Stephanie Dawn Cornwell

Dissertations

In order to compare the postsecondary success rates of students with disabilities in rural areas to those in urban areas in Kentucky, data were accessed from the Kentucky Postsecondary Outcome Study, a longitudinal study created to monitor the employment and education status of students with disabilities during their final year of high school and one year after exiting high school. U.S. Census data were also utilized to determine various demographic information and rural or urban classification of selected areas. Results show that the geographic classification as rural and suburban has a strong relationship with the postsecondary outcome for students with …

A Quantitative Study Of Educational Poverty, School Location, And Student Achievement Measured By The Program For International Student Assessment (Pisa), Brett Barger

Dissertations

The performance of the United States’ students on international tests remains an ongoing source of concern, division, and anxiety for government, educational, and business leaders, teachers (and their unions), as well as the general public. These selfsame test results have been used as evidence to support diametrically opposed political and educational strategy and policy for decades. All too often the performance of students is discussed with a single test score number that is used to represent the entirety of the education system’s students without accounting for geographical, demographic, or socioeconomic differences among the student test takers. The contributing factors of …

Patient Care Technology And The Nurse-Patient Relationship, Belinda M. Toole Phd, Msn, Rn

Dissertations

Background: Technological devices are increasingly used in healthcare and their proliferation has providers questioning the impact on the patient-provider relationship. Technological device integration has been studied in the primary care setting, less extensively in the acute care setting. The impact of device use on the nurse-patient relationship in acute care setting required further study, particularly with nursing's history of holistic practice incorporating caring and presence. Objectives: The study purpose was to explore the patient's perceptions of nurse caring and presence when technological devices were used in care delivery in the acute care setting. Specific aims were: 1) to describe the …

A Complex Social Network Analyses Of Online Finanical Communties In Times Of Geopolitcal Military And Terrorist Events, James Usher

Dissertations

Given the advances in technology the field of social network analysis has very much hit the forefront in recent years. The information age harnesses the use of social network analysis for multiple industries and for solving complex problems. Social network analysis is an important tool in the world of the military and counter intelligence, whether it’s the capture of Osama Bin Laden or uncovering hidden Al Qaeda terrorist networks, the world around us is built on networks, be that hidden or otherwise. Online social networks give new information in the world of intelligence agencies similarly online financial communities such as …

Intent-Based User Segmentation With Query Enhancement, Wei Xiong

Dissertations

With the rapid advancement of the internet, accurate prediction of user's online intent underlying their search queries has received increasing attention from the online advertising community. As a rich source of information on web user's behavior, query logs have been leveraged by advertising companies to deliver personalized advertisements. However, a typical query usually contains very few terms, which only carry a small amount of information about a user's interest. The tendency of users to use short and ambiguous queries makes it difficult to fully describe and distinguish a user's intent. In addition, the query feature space is sparse, as only …

Tap The Screen: Technology Integration In Our Students’ Lives, Matthew J. Fuller

Dissertations

The focus of this study is to document and describe the integration of technology in the everyday lives of students in Grades 3–8 attending a high-performing public school district in an affluent Chicago suburb. The following research questions guide this study:

• How do students in Grades 3–8 integrate technology into their lives?
• What are the implications of students’ technology integration for teaching and learning?
• How can teachers capitalize upon students’ technology integration in ways that inform instructional practice?

A review of the literature presents related information in areas that explore the increasingly digital world of our students; curriculum, instruction, and …

Vision 2020: An Analysis Of Policy Implementation And Agrarian Change In Rural Rwanda, Sterling Recker

Dissertations

In 2000, President Paul Kagame introduced a plan to alleviate poverty as well as to maintain political control over the policy process through a decentralized bureaucracy. Since adoption of Vision 2020 in 2000, Rwanda has been reforming its rural sector to commercialize agriculture, reduce pressures on land, and move the country into middle income status by the year 2020. In order to achieve the goals outlined in Vision 2020, the Government of Rwanda (GoR) adopted a policy of administrative decentralization in 2001 to facilitate the transition from subsistence to commercial agriculture. I am addressing two related questions: 1) How has …

The Standard Deviation: Attitude Transference And Perceptions Of Deviant Behavior, Candace Forbes Bright

Dissertations

This dissertation uses a three-article dissertation model to 1) compare how deviance is defined and what is considered deviant comparing the United States to South Korea using content analysis, 2) test socio-demographic and social network variables in the development of one’s approval of deviance using eleven ordinary least squared regression models, and 3) examine the association between social networks and approval of deviant behaviors using social network analysis. All three articles use data from a survey on perceptions of deviant behavior. The survey was conducted in English and Korean. The first article provides comparisons on how deviance is defined and …

Next Year In Juarez: Stories, Christopher Michael Brunt

Dissertations

This creative dissertation comprises a collection of short fiction and a critical preface. The preface explores the concept of variousness as it affects the contemporary production of literary fiction. Reference is made to a range of twentieth century writers in order to position the dissertation in a context of literary history. The piece titled “The Essay on Longing” is the first chapter of a novel-in-stories.

Integrated (Remote Sensing, Gis, And Modeling) Hydrological Investigation And Landslide Susceptibility Studies In The Arabian Shield, Talal Ghazi Alharbi

Dissertations

An integrated approach (remote sensing, geographical information systems [GIS], and modeling) was applied to conduct a number of hydrologic and environmental investigations in the Arabian Peninsula (AP) aimed at: (1) identifying the spatial and temporal climate change–related variations in precipitation over the AP using readily available, remotely acquired global precipitation data sets; (2) investigating the nature of the factors controlling the observed climatic variations; (3) estimating the partitioning of precipitation over the Red Sea Hills watersheds into runoff , recharge, and initial losses using calibrated continuous rainfall runoff models (Soil Water Assessment Tool [SWAT]); (4) identifying landslide (largely caused by …

The Effects Of Writing Centers Upon The Engagement And Retention Of Developmental Composition Students In One Missouri Community College, David Elton Ball

Dissertations

Student retention poses a major challenge to higher education in America. Research has demonstrated colleges that foster student engagement have higher retention rates than colleges that fail to do so. Writing centers are student services that improve student engagement and retention. This study focused upon the Fall 2013 cohort of developmental composition students in one Missouri community college, to determine if students’ use of the writing center made a positive difference upon student engagement or successful completion of their course. The study was designed with a two-pronged approach to answer four questions. The first question was posed to determine a …