Digital Commons Network^™

The Impact Of Project-Based Learning On Collegiate Preparedness, Tanya T. Macmartin

Dissertations

Purpose: The purpose of this qualitative case study was to explore and describe collegiate PBL high school student graduates’ perceptions of their preparedness for their first year of college and the impact of how the BIE’s eight essential components of PBL (Larmer & Mergendoller, 2015b) contributed to their first year of college preparedness. A secondary purpose was to explore and describe the alignment of the students’ perceptions of the impact of how the BIE’s eight project-based components (Larmer & Mergendoller, 2015b) contributed to their first year of college preparedness as defined by Conley’s (2012) college readiness indicators.

Methodology: …

A Qualitative Case Study: Examining The Social And Cultural Impact Of Sisters Club, Andrea L. Barrale

Dissertations

Adolescent girls face social and identity issues as they transition into adulthood and after-school programs are one venue that allows adults to help students deal with the difficulties encountered. This is a qualitative case study focused on the impact the SISTERS Club, an after-school program, had on a diverse group of middle school female students over the course of a five year period, from 2001 to 2006. This study described the impact on identity development, multicultural relationships, and the long-term impact of the after-school program on the female adolescents interviewed.

I investigated the racial, social, and cultural barriers that impacted …

A Mixed-Methods Study Of English Language Learners' Academic Achievements In A Spanish Language Immersion School, Ibtihal Salman

Dissertations

English Language Learners (ELLs) represent the fastest growing population in the public-school community in the United States (U.S.), where their academic achievements lag behind their native English-speaking peers. English Language Learners’ academic achievement gap has raised a challenging issue for U.S. educators. A convergent parallel mixed-methods study was conducted to 1) compare English Language learners’ academic achievements (mathematics and English Language Arts [ELA] scores) to non-ELLs’ academic achievements (mathematics and ELA scores) in a one-way Spanish immersion school in the Midwestern United States; 2) examine the impact of using Spanish as an instructional tool on English Language Learners’ (ELLs) academic …

Barriers To Reducing The Digital-Use Divide As Perceived By Middle School Principals, Robert E. Presby

Dissertations

Purpose: The purpose of this qualitative phenomenological study was to explore and describe the barriers to the integration of information and communication technology (ICT) to support active learning in the classroom as perceived by middle school site principals.

Methodology: The participants in this study were 16 middle school principals in Southern California. They answered interview questions about barriers to integrating ICT for active learning, strategies to reduce or eliminate the barriers, and how they determined ICT was being used for active learning.

Findings: The findings indicated that the first-order barriers of funding to provide access to ICT and limited or …

Meaning Makers: A Mixed-Methods Case Study Of Exemplary Chief Executive Officers Of Engineering Technology Organizations And The Behaviors They Use To Create Personal And Organizational Meaning, Sandra Kay Hodge

Dissertations

Purpose: The purpose of this thematic, mixed-methods case study was to identify and describe the behaviors used by exemplary chief executive officers of engineering technology organizations to create personal and organizational meaning for themselves and their followers through the five variables of character, inspiration, relationships, vision, and wisdom. Additionally, followers were surveyed to determine the degree to which they perceive the behaviors related to character, inspiration, relationships, vision, and wisdom help to create personal and organizational meaning.

Methodology: Exemplary chief executive officers of engineering technology organizations were interviewed to determine their perception of which behaviors they utilize to employ character, …

The Effect Of Professional Learning Activities On Implementation Of California’S Quality Professional Learning Standards In Alignment With The Local Control Funding Formula Priority 2, Sadie Pinotti

Dissertations

The purpose of this Delphi study was to identify the professional learning activities that experts perceive are necessary for local education agencies (LEAs) to effectively implement California’s Quality Professional Learning Standards (QPLS) in alignment with the Local Control Funding Formula (LCFF) Priority 2. The study also examined the degree of importance that the identified professional learning activities will have and those most likely to be implemented. This study involved descriptive statistics using a Delphi study method. The Delphi panel consisted of 18 experts in the field of education and professional learning activities. The Delphi study consisted of 3 rounds of …

Development And Evaluation Of Machine Learning Algorithms For Biomedical Applications, Turki Talal Turki

Dissertations

Gene network inference and drug response prediction are two important problems in computational biomedicine. The former helps scientists better understand the functional elements and regulatory circuits of cells. The latter helps a physician gain full understanding of the effective treatment on patients. Both problems have been widely studied, though current solutions are far from perfect. More research is needed to improve the accuracy of existing approaches.

This dissertation develops machine learning and data mining algorithms, and applies these algorithms to solve the two important biomedical problems. Specifically, to tackle the gene network inference problem, the dissertation proposes (i) new techniques …

Mathematical Modeling Of Membrane Filtration, Pejman Sanaei

Dissertations

The purpose of this thesis is to formulate and investigate new mathematical models for membrane filtration. The work presented is divided into six chapters. In the first chapter the problem is introduced and motivated. In the second chapter, a new mathematical model for flow and fouling in a pleated membrane filter is presented. Pleated membrane filters are widely used in many applications, and offer significantly better surface area to volume ratios than equal area unpleated membrane filters. However, their filtration characteristics are markedly inferior to those of equivalent unpleated membrane filters in dead-end filtration. While several hypotheses have been advanced …

Design And Optimization Of An Explosive Storage Policy In Internet Fulfillment Warehouses, Sevilay Onal

Dissertations

This research investigates the warehousing operations of internet retailers. The primary physical process in internet retail is fulfillment, which typically involves a large internet fulfillment warehouse (IFW) that has been built and designed exclusively for online sales and an accompanying parcel delivery network. Based on observational studies of IFW operations at a leading internet retailer, the investigations find that traditional warehousing methods are being replaced by new methods which better leverage information technology and efficiently serve the new internet retail driven supply chain economy. Traditional methods assume a warehouse moves bulk volumes to retail points where the bulks get broken …

Using Collaborative Discussions In College Classrooms, Komako Suzuki

Dissertations

The purpose of the current study is to investigate whether an open-format, small group discussion approach, Collaborative Reasoning (CR), positively affects the English language development of college English as Second Language (ESL) students. According to Zhang and Dougherty Stahl (2011), CR is an approach to discussion that makes use of small groups and is designed to encourage students to become more intellectually and personally engaged.

In order to measure the effectiveness of the CR approach in English classes with ESL students, data were collected from the six classrooms at an international English language institute at a university in the southeastern …

Early Childhood Educators' Perspectives Of Play In Preschool Classrooms, Michelle Lois Edwards

Dissertations

This study examines early childhood educators’ perceptions of play as a developmentally appropriate practice in preschool classrooms. Through selective sampling, 10 preschool teachers were chosen. These teachers were identified because of their experience, education, and the lead they take on various projects, as well as the author’s personal knowledge of their work ethic and dedication to the education profession. The teachers were interviewed using an extempore, semi-structured configuration about their beliefs relating to play, how they implement play in their classrooms, and their viewpoint on hurdles to play. They identified the supports required to implement play as a developmentally appropriate …

Are The Leadership Behaviors Of K–12 Leaders In Mid-Western Urban School Districts Influenced By Their Beliefs And Attitudes Regarding Spirituality?, Ericka M. Taylor

Dissertations

Working in a stressful and chaotic environment can be difficult for building principals in urban school districts (DeNisco, 2013; Stokley, 2002; Thompson, 2004). Presumably, the job is only expected to get more arduous with the increasing demands to improve student achievement (Allison, 2012; Kimball & Sirotnik, 2000; Queen & Schumacher, 2006). What is quite apparent today is that the role and responsibilities of the principal have changed dramatically over the past twenty years (Carlson, 2012; Hill-Yeverton, 2003) shifting from a factory model of management of learning to one in which teachers and principals have to create more student-centered and project-based …

Artificial Immune Systems: Applications, Multi-Class Classification, Optimizations, And Analysis, Brian Haroldo Schmidt

Dissertations

The focus of this research is the application of the Artificial Immune System (AIS) paradigm to a new research area along with the modifications necessary to adapt it to a new problem. In the past 10 years, there has been much research into the use of various Machine Learning (ML) algorithms in Network Flow Traffic Classification. AIS algorithms have thus far not been applied to this problem. Because AIS algorithms have been used extensively for Network Intrusion Detection applications, which is a similar area of research, the motivation to extend them to the network flow classification problem is clear.

This …

General Education Teachers’ Attitudes About Inclusion, Larry D. Monje

Dissertations

This study uses Q Methodology and semi-structured interviews to examine general education teachers’ attitudes, beliefs and perceptions about inclusion of students with disabilities in their general education classrooms. As reported in the 38th Annual Report to Congress on the Implementation of the Individuals with Disabilities Act, 2016, 94.8% of students with disabilities are being educated in general education classrooms for some part of the school day (U.S. Department of Education, 2016). For this reason, it is important to understand general education teachers’ attitudes, beliefs and perceptions about the inclusion of students with disabilities.

In this study there were 50 Q …

Implementing A Cohort Model For Algebra 1, Geometry, And Algebra 2 At One High School: A Change Leadership Project., Agnes Ghansah, Agnes Ghansah Ed.D.

Dissertations

This project addresses a high school that has low test scores in the mathematics department. The scores, especially of the core math courses are at or below that of the district level. I investigated into potential causes of the problems and how this could be rectified by proposing a change.

I collected some students’ tests scores data of the math courses, and then conducted surveys and interviews of the teachers of these courses to gain a better insight into the problem. The results prove my previous notion that the scores were not good and that both teachers and administration would …

Advocating For The Need Of A College And Career Readiness Preparation Accountablity Policy, Mellodie Brown

Dissertations

This proposed policy advocates for Chicago Public Schools (CPS) to adopt a College and Career Readiness Preparation Accountability Policy wherein CPS sets district-wide criteria and structures for student college and career readiness at every grade level and ensures that resources and supportive services are available for its most at-risk students in underperforming schools. Also, it is important that CPS recognize the limited capacity of its teachers to transition students toward meeting Common Core State Standards. This can be addressed through professional development aligned to a proposed matrix for college and career readiness for all students. Supplemental funds are needed to …

Biosorption Of Pharmaceuticals And Noble Metals Nanoparticles By Algal Turf Communities, Haider Abid Faraj

Dissertations

Pharmaceuticals and nanoparticles are increasingly released into the aquatic ecosystem, while removing these contaminants from waters can be challenging. This study explores the use of periphytic algal turf communities to remove these contaminants. Initially algal turfs from different locations and aquatic systems were analyzed for pharmaceuticals commonly observed in wastewater outflows. Lab-grown turfs were exposed to a mixture of six representative pharmaceuticals of different functionality (acid, base, neutral and steroidal). Analysis of water column and the algal biomass showed pharmaceutical removal rates varied, specific to each pharmaceutical. Caffeine and estradiol had the highest removal rates while carbamazepine was not removed. …

Subgroup Analysis And Growth Curve Models For Longitudinal Data, Nichole Andrews

Dissertations

In clinical trials and biomedical studies, treatments are compared to determine which one is effective against illness. Growth curve analysis can be beneficial in longitudinal biomedical studies, as we can evaluate the treatment effect on the response over time. The generalized growth curve model using polynomial regression is proposed for longitudinal data. An optimal degree for the polynomial is obtained using the BIQIF, an adaptation of the Bayesian information criterion. Quadratic inference functions are used to estimate the parameters of the model, which takes into account the fact that repeated measurements from the same subject are more likely to be …

Architecture, Simulation, And Implementation Of Commodity Computer Components In Software Defined Radio Systems, Amean Al-Safi

Dissertations

Radio communications have evolved through an extended history of theoretical and practical component development into modern devices most often envisioned as the ubiquitous smart phones found in almost everyone’s hand on a university campus. During this development, radios have evolved from analog devices operating at low frequencies into nearly all digital processing systems referred to as Software Defined Radio (SDR) operating in frequency bands over 1 Gigahertz. Although specific forms and types of communication are fiercely pursued by commercial communication companies and industry, there remain numerous concepts where further advancement is possible, and applications, possibly less commercially viable, where advancements …

Multiprocessing Real Time Vision Based System For Condition Monitoring In Solar Panels, Moath Hashim Alsafasfeh

Dissertations

Enabling an algorithm to be executed in parallel on a multicore or a multiprocessor system has become a necessity for many real time applications. Multicore systems are widely used to improve performance and satisfy time and power demands. In this dissertation, solar energy, which has proved itself as the future clean source of energy, is also considered in real time. Optimum utilization of this energy propelled research efforts into many directions of the solar system components. However, while real time operations of Photovoltaic (PV) systems occur without any supervisory mechanisms, many internal and/or external obstacles can occur and hinder a …

Protecting Sensitive Data In Clouds Using Active Data Bundles And Agent-Based Secure Multi-Party Computation, Akram Y. Sarhan

Dissertations

Protection of data in cloud computing including distributed environments is a critical concern for many enterprises. This study proposes a solution that protects sensitive data outsourced to a cloud throughout their entire life cycle—both in the cloud as well as outside of the cloud (e.g., during transmission to or from the cloud). The solution enhances the existing data protection approach known as Active Bundle scheme, which uses a Trusted Third Party (ABTTP).

The Active Data Bundle (ADB) was formerly called an Active Bundle (AB). It is a software construct that encapsulates data, metadata, and a virtual machine (VM). The metadata …

A Mixed Method Study On The Missouri Beginning Teachers Assistance Program And Teacher Retention In Saint Louis School Districts, Raymond Ciolek

Dissertations

The purpose of this research was to investigate whether new teacher and new teacher mentor perceptions of the effectiveness of the Missouri State Beginning Teachers’ Assistance Program (BTAP) were positive and whether the new teacher perceptions led to the new teacher remaining in the teaching profession at least five years. At the time of this writing, in the state of Missouri, new teachers must work through a six step process to upgrade their initial teacher certification to a continual (99 year) certification (Appendix A). This paper describes research on the second step of Missouri’s process, which involved the new teacher …

Exploring The Congruency Between Mission And Practice In A Pre-K–12, Midwestern, Christian School, Allison Bearden

Dissertations

Christian school education is unique in nature. Integrating faith into academics led many families to choose an environment for their students that aligned with the faith, morals, and doctrinal beliefs they held as essential pieces in raising their children. The partnership with the school in instilling a strong foundation of faith for students set Christian schools apart from public and non-religious private schools. Because families purposely choose Christian schools based upon like-minded values and beliefs, it was essential that the school seeks to fulfill its mission in practice and vision. The purpose of this qualitative research study was to explore …

Big Data Analytics In Computational Biology And Bioinformatics, Kevin Byron

Dissertations

Big data analytics in computational biology and bioinformatics refers to an array of operations including biological pattern discovery, classification, prediction, inference, clustering as well as data mining in the cloud, among others. This dissertation addresses big data analytics by investigating two important operations, namely pattern discovery and network inference.

The dissertation starts by focusing on biological pattern discovery at a genomic scale. Research reveals that the secondary structure in non-coding RNA (ncRNA) is more conserved during evolution than its primary nucleotide sequence. Using a covariance model approach, the stems and loops of an ncRNA secondary structure are represented as a …

The Effect Of A Growth Mindset On Student Achievement Among Students With A Disability, Kristin Line Froedge

Dissertations

The purpose of this study was to investigate to what extent the mindset of students with disabilities relates to their Student Growth Percentile (SGP) on the K-PREP in both reading and math. In addition to exploring the influence of student mindset on academic growth, the study also examined if a correlation exists between teacher mindsets and mindsets of their students. This quantitative study utilized 2015 K-PREP assessment data from the Kentucky Department of Education and a mindset survey developed by the researcher. Participants for this study included 145 middle school students with disabilities and 46 middle school teachers from six …

Synthesis And Detection Of Dna Damage, Xun Gao

Dissertations

The biological effects of DNA alkyl adducts are difficult to evaluate at the cellular level due to their instability. Synthesis of oligonucleotides that contain a single N7-alkylguanine has become a vital tool to achieve the above goal. However, the instability of N7-alkyguanines is not compatible with the phosphoramidite chemistry used by solid-phase oligonucleotide synthesis either. Development of chemically stable analogues of unstable DNA lesions enables accurate study of polymerase bypass. The design and successful synthesis of N7-hydroxyethyl-9-deaza-2′-deoxyguanosine and N7-oxoethyl-9-deaza-2′-deoxyguanosine as the stable analogues of N7-hydroxyethyl- 2'-deoxyguanosine and N7-oxoethyl-2′-deoxyguanosine, respectively, are reported. The synthesis of these two nucleosides whose N7 side …

Investigation Of New Learning Methods For Visual Recognition, Qingfeng Liu

Dissertations

Visual recognition is one of the most difficult and prevailing problems in computer vision and pattern recognition due to the challenges in understanding the semantics and contents of digital images. Two major components of a visual recognition system are discriminatory feature representation and efficient and accurate pattern classification. This dissertation therefore focuses on developing new learning methods for visual recognition.

Based on the conventional sparse representation, which shows its robustness for visual recognition problems, a series of new methods is proposed. Specifically, first, a new locally linear K nearest neighbor method, or LLK method, is presented. The LLK method derives …

The Design And Optimization Of Cooperative Mobile Edge, Xueqing Huang

Dissertations

As the world is charging towards the Internet of Things (IoT) era, an enormous amount of sensors will be rapidly empowered with internet connectivity. Besides the fact that the end devices are getting more diverse, some of them are also becoming more powerful, such that they can function as standalone mobile computing units with multiple wireless network interfaces. At the network end, various facilities are also pushed to the mobile edge to foster internet connections. Distributed small scale cloud resources and green energy harvesters can be directly attached to the deployed heterogeneous base stations.

Different from the traditional wireless access …

Viewability Prediction For Display Advertising, Chong Wang

Dissertations

As a massive industry, display advertising delivers advertisers’ marketing messages to attract customers through graphic banners on webpages. Display advertising is also the most essential revenue source of online publishers. Currently, advertisers are charged by user response or ad serving. However, recent studies show that users barely click or convert display ads. Moreover, about half of the ads are actually never seen by users. In this case, advertisers cannot enhance their brand awareness and increase return on investment. Publishers also lose much revenue. Therefore, the ad pricing standards are shifting to a new model: ad impressions are paid if they …

Statistical Learning Methods For Mining Marketing And Biological Data, Jie Zhang

Dissertations

Nowadays, the value of data has been broadly recognized and emphasized. More and more decisions are made based on data and analysis rather than solely on experience and intuition. With the fast development of networking, data storage, and data collection capacity, data have increased dramatically in industry, science and engineering domains, which brings both great opportunities and challenges. To take advantage of the data flood, new computational methods are in demand to process, analyze and understand these datasets.

This dissertation focuses on the development of statistical learning methods for online advertising and bioinformatics to model real world data with temporal …