Digital Commons Network^™

Developing A Uhf/Vhf Phased-Array Satellite Ground Station, Brent K. Cole

Theses and Dissertations

Earth-satellite communications and tracking of spacecraft are accomplished using ground stations. Traditionally, this has been achieved by using a large parabolic antenna or pair of antennas that point at a source of interest and mechanically steer the antenna(s) as the source moves throughout the sky. Phased arrays, which have often been used in radio astronomy, can provide multiple benefits when used as a ground station including fast scanning speeds across the sky, tracking and communication of multiple sources simultaneously, and significant improvements to overall gain, signal-to-noise ratio (SNR), and data bandwidth. This thesis presents a preliminary analysis of a 20-element …

Mexartivist As Resistance Against Media Representation Of Latinxs In The U.S., Jose Garcia Gilling

Theses and Dissertations

MexArtivist comes as a response of wanting to reflect our experiences as Mexicanxs, Latinxs, Chicanxs and Mexican Americans. I've merged my recent academic years, research and knowledge along with my over then years of experience in the film and audiovisual production industry to create the audiovisual group called MexArtivist. Based on research regarding the image, representation, misrepresentation and lack of representation of Latinxs in U.S. films, I present a tangible proposal to try and better this issue.

The Influence Of College Preparation In The Relationship Between High School Socioeconomic Context And College Enrollment, Jeffery J. Huerta

Theses and Dissertations

Recent research has documented that the socioeconomic context of high schools plays a significant role in students’ postsecondary enrollment outcomes (Engberg & Wolniak, 2014; Roderick et al., 2011; Engberg & Wolniak, 2010; Nuñez & Kim, 2012; Hill, 2008; Perna & Titus, 2005; Perna, 2000), with lower college outcomes occurring due to students at lower SES high schools having lower amounts of capital, less access to rigorous curriculum, and more negative peer influences than students at higher SES high schools. However, absent in these studies is whether efforts of comprehensive college preparation were taking place and if such efforts are also …

How Does Choosing Fitness Labeled Food Affect Consumer’S Intention To Forgo Exercise, Mei Han

Theses and Dissertations

As one of the most widely used marketing techniques, the role and effects of food labels have received significant attention from researchers. Different labels have very different influences and implications. This dissertation focuses on a unique persuasive language label: fitness label. This dissertation starts with a discussion on self-regulation mechanisms and research on goals, and their implications on how choosing fitness labeled food affects subsequent intention to forgo exercise.

This dissertation finds that the existence of response conflict in food choice, as well as the magnitude of the response conflict affect consumer’s reaction mechanisms, which in turn affect consumer’s exercise …

Exploring The Implementation Of A Proficiency-Focused, Performance-Based Approach In Foreign Language Teaching, Yuka Kato

Theses and Dissertations

Foreign language teachers in one district faced a paradigm shift in the ways language should be taught and in their pedagogical beliefs. They were asked to shift from a traditional approach to the Proficiency-Focused, Performance-Based (PFPB) approach in order to meet the national Standards for Foreign Language Learning in the 21st Century, created by ACTFL (1999 & 2006). The expectation was that every foreign language teacher in the district would use the PFPB approach. However, the problem was that some of the teachers would not understand the approach or how to implement it, with the result that the approach …

On Coupled Reaction Diffusion Equations And Their Applications, Juan J. Huerta

Theses and Dissertations

Reaction-diffusion equations are nonlinear partial differential equations that have been used extensively in mathematical modeling. An interesting case in this type of equation is the Fisher-Kolmogorov system, which has been used to study a low-grade glioma, a group of primary brain tumors. In the first part of this thesis, a stochastic version of the Fisher-Kolmogorov system will be studied, and exact and numerical solutions will be presented.

The second part of this thesis will show how the speed of information propagation affects disease spread and vaccination uptake through networks in epidemics. In this model, the information reaches different people at …

A Darker Shade Of Gray: An Empirical Examination Of Gray Swans In The Supply Chain, Tony N.K. Lynch

Theses and Dissertations

The complexity and interconnectedness of markets creates risks in the global supply chain and may lead to various types of disruptions. Prior research in the supply chain management literature has focused on some aspect of disruption and firm performance. However, the effect of Gray Swans on various aspects of firms’ operational or financial performance is an under-research area. Understanding why managers often underestimate and overlook Gray Swans contributes to ongoing conversation of risk in the global supply chain. Gray Swans are defined as low probability risk events that if/when they occur can have a severe or catastrophic impact on a …

Association Study: Apoe Alleles Association With Neurodegenerative Disorders In The Hispanic Population, Kimberly Moreno

Theses and Dissertations

The purpose of this study was to assess the impact of phenotypic variables and Apolipoprotein E (APOE) alleles and its effect on cognitive statues. APOE is a gene found vastly in the Hispanic community, speculated to be linked to neurodegenerative disorders such as Alzheimer's Disease (AD) and Mild Cognitive Impairment (MCI). Compared demographic, clinical, and genetic features among Hispanics who were diagnosed with Alzheimer's Disease, Mild Cognitive Impairment, and psychiatric disorders (e.g., anxiety and depression) in the efforts to assess the role of APOE. In past research, APOE has been considered a pathological hallmark for neurological diseases.

Past research has …

Native Plant Allelopathy: A Potential Approach To Limit Invasive Grass Encroachment In Thorn Forest Restoration, Emily A. Mullins

Theses and Dissertations

Less than 5% of the Tamaulipan thorn forest remains in the United States. For this reason, there have been many attempts at restoration of this ecosystem. Oftentimes these attempts are unsuccessful due to the high prevalence of invasive African grasses that outcompete the seedlings. In an effort to improve the efficacy of these restoration efforts, native plant allelopathy has been examined for its ability to exclude invasive guineagrass. Native species were surveyed and selected species were tested for allelopathy in laboratory bioassays. The species that exhibited allelopathy in the laboratory were then evaluated in pot experiments for their ability to …

Traffic Time Headway Prediction And Analysis: A Deep Learning Approach, Saumik Sakib Bin Masud

Theses and Dissertations

In the modern world of Intelligent Transportation System (ITS), time headway is a key traffic flow parameter affecting ITS operations and planning. Defined as “the time difference between any two successive vehicles when they cross a given point”, time headway is used in various traffic and transportation engineering research domains, such as capacity analysis, safety studies, car-following, and lane-changing behavior modeling, and level of service evaluation describing stochastic features of traffic flow. Advanced travel and headway information can also help road users avoid traffic congestion through dynamic route planning, for instance. Hence, it is crucial to accurately model headway distribution …

Bivariate Markov Chain Model Of Irritable Bowel Syndrome (Ibs) Subtypes And Abdominal Pain, Ricardo Reyna Jr.

Theses and Dissertations

Researchers use stochastic models like continuous-time Markov chains (CTMC) to model progression of morbidities of public health impact, like HIV and Hepatitis C. Most of the research in that area is done for a single disease. In this research, we use a bivariate continuous-time Markov chain (CTMC) to model progression of co-morbidities. In particular, we use a bivariate CTMC to model the joint progression of Irritable Bowel Syndrome (IBS) and abdominal pain. Symptoms of IBS are known to change throughout the duration of the disorder. Hence, patients are normally asked to make a journal of the stool type, symptoms, and …

Artificial Intelligence In A Main Warehouse In Panasonic: Los Indios, Texas, Edison Antonio Trejo Hernandez

Theses and Dissertations

The Panasonic Company warehouse is located in Los Indios Texas. The warehouse presents the limitation of the great distances between its headquarters and the Main Warehouse for supplying the branches and main customers, which requires a considerable amount of time to maintain effective communication in the inventory area. In addition, during an online review, it can be confirmed that the website is disabled, contradicting its corporate policy.

The structure of the thesis proposal is arranged in four chapters from the Introduction, Statement of the Problem and Purposes; Previous Studies and Definition of the literature; the Research Methodology and the resources …

Principal Instructional Leadership Behavior As Perceived By Middle School Principals In The Rio Grande Valley Of Texas, Joseph R. Villarreal

Theses and Dissertations

The purpose of this study is to determine which of the 10 leadership functions contained in the PIMRS, as identified by Hallinger (1983), are demonstrated by principals in Rio Grande Valley middle schools that received Texas Education Agency distinctions for closing performing gaps, compared to those middle schools in the Rio Grande Valley that did not. The study aimed to determine if there was a significant difference been the principal instructional leadership behaviors at middle schools recognized for closing performance gaps compared to those that were not recognized. The results showed that there did not exist a significant difference between …

Security Evaluation Of Microsoft’S Windows Under Cyber-Flood Attacks, Christina Y. Navarro

Theses and Dissertations

Cyberattacks are quite common occurrences today as such can compromise entire networks producing collective vulnerabilities. As shown herein, manifold experimental findings exhibit ramifications for a cyberattack victim during multiple simulations. All experiments were conducted with Apple’s iMac, the victim system, and different editions of Microsoft Windows 10 and Windows 8.1.

Cyberattacks herein categorize as Distributed Denial of Service (DDoS) attacks including Smurf, Ping Flood, Transmission Control Protocol-Synchronize (TCP-SYN) Flood, and User Datagram Protocol (UDP) Flood attacks. Experimental results from each cyberattack are recordings of computer activities such as memory consumption, disk utilization, and overall processor utilization.

DDoS attack simulations include …

Design, Synthesis And Antibacterial Studies Of Some New Pyridopyrimidine Derivatives As Biotin Carboxylase Inhibitors, Vivek B. Panchabhai, Parag G. Ingole, S R. Butle

Bulletin of Faculty of Pharmacy Cairo University

Present study reports the development of novel pyridopyrimidine derivatives as biotin carboxylase inhibitors with potent antibacterial activity. These compounds were designed to avoid possibility of resistance development. Accordingly eighteen compounds were synthesised and characterized on the basis of spectral data. These compounds were tested for their antibacterial potential by the enzyme kinetic assay against the biotin carboxylase. The minimum inhibitory concentration (MIC) and single step resistance studies were also performed. Compound 2-((2-Phenylpyrido[2,3-d]pyrimidin-4-yl)amino)phenol (6o) showed promising activity in biotin carboxylase inhibition with low MIC. It showed molecular docking score of -7.96, this compound showed formation of hydrogen bonds with the active …

Financial Terms In License Agreements, Jorge L. Contreras

Utah Law Faculty Scholarship

This chapter in the forthcoming casebook Intellectual Property Licensing and Transactions: Theory and Practice (2020, forthcoming), discusses the financial terms of IP licensing agreements including fixed payments, running royalties, sublicensing income, milestone payments, equity compensation and cost reimbursement, as well as most-favored and audit clauses. Numerous areas of recent controversy are addressed including the establishment of royalty rates through the entire market value rule (EMVR) versus the smallest salable patent practicing unit (SSPPU) rule, royalties for bundled rights, rules of thumb discredited by the courts, royalty escalation clauses and more. Examples are drawn primarily from biotechnology, high-tech and copyright licensing …

The Language Of Parental Involvement: A Document Analysis Of Parent Involvement Plans (Pip’S) Of Title I Elementary Schools, Jacqueleen M. Bido

Seton Hall University Dissertations and Theses (ETDs)

Research indicates that parent involvement increases student achievement. This qualitative research examined 30 elementary Title I schools’ Parent Involvement Plans (PIPs), seeking roles parents played in urban settings. This document analysis reviewed the descriptive language presented in each school’s plan and examined for fidelity. Using Epstein’s Six Types of Parent Involvement and the Sample Practice, the researcher coded the Plans. Data displayed compliance with the mandated requirements of the Plans. Still, they indicated incongruencies with fidelity and alignment to proven best-practices research.

The Impact Of High School Career Academies On Student Academic Achievement And Engagement, Daisy Rodriguez

Seton Hall University Dissertations and Theses (ETDs)

The purpose of this study is to examine the effectiveness of high school career academies in comparison to the traditional, comprehensive high school educational program with respect to student academic achievement and student engagement in one large urban high school in Central New Jersey. It is the intent of this researcher to determine if either of the educational structures and approaches significantly impacts the achievement and engagement levels of students in the high school under investigation.

Student math and ELA state test scores and student engagement scores were analyzed using quantitative methods. To ascertain the degree of effectiveness this reform …

Professional Development For Research-Writing Instructors: A Collaborative Approach, Kaitlin Clinnin, Melissa Bowles-Terry

English Faculty Research

Writing programs and academic libraries are frequent collaborators based on shared concerns about writing and research. However, in these collaborative relationships librarians often share their expertise with writing program administrators and individual instructors without developing the information literacy expertise of the majority of writing program instructors. At the University of Nevada, Las Vegas, the library instruction program and the writing program recognized that by facilitating collaborative professional development, they could together provide enhanced support for instructors teaching research-based writing courses. The authors present a case study of their local professional development institute that developed writing instructors’ information literacy confidence and …

The Relationship Between The Earning Of Career And Technical Industry Credentials And The Virginia Economy, Anjanette Mcfadden Hendricks

Educational Leadership & Workforce Development Theses & Dissertations

Nationally, the labor market is calling out for workers to fill the increasing number of job vacancies, but those qualified, skilled, and able to fill them are limited in supply or retiring in large numbers. As America’s key industries offer high salaries in return for candidates with the necessary skills and credentials to fill their vacancies, the skills learned and third-party industry credentials earned in secondary Career and Technical Education (CTE) programs seem to make a perfect fit for the student, employer, and the economy. However, unlike the favored US educational model of the four-year degree, the continued outdated perception …

Using Interacting Multiple Model Filters To Indicate Program Risk, Amy Sunshine Smith-Carroll

Engineering Management & Systems Engineering Theses & Dissertations

Technology development has increased exponentially. Program managers are pushed to accelerate development. There are many resources available to program managers that enable acceleration, such as: additional resources in the form of funding, people and technology. There are also negative impacts to acceleration, such as: inclusion, inexperience program managers, and communication. This research seeks to identify the limit to which a program or project can be accelerated before the program manager begins to accept an unacceptable amount of pre-determined risk.

This research will utilize estimation algorithms used by sensor systems to estimate the current and future state of objects in space. …

An Investigation On The Effectiveness Of A Problem Structuring Method In A Group Decision-Making Process, Ying Thaviphoke

Engineering Management & Systems Engineering Theses & Dissertations

There is no shortage of methods to address messy problems. A messy problem is a system of problems with multiple stakeholders who may hold different views of what is feasible or desirable. Decision-makers in a messy problem are prone to committing an error – especially the Type III error. One of the ways to mitigate the chance of committing the error in a messy problem is to reach a group consensus. Problem Structuring Methods (PSM) are the collections of participatory modeling methods that aim to tackle a messy problem. Despite the positive reports, literature indicates some challenges and criticisms of …

Enhanced Traffic Incident Analysis With Advanced Machine Learning Algorithms, Zhenyu Wang

Computational Modeling & Simulation Engineering Theses & Dissertations

Traffic incident analysis is a crucial task in traffic management centers (TMCs) that typically manage many highways with limited staff and resources. An effective automatic incident analysis approach that can report abnormal events timely and accurately will benefit TMCs in optimizing the use of limited incident response and management resources. During the past decades, significant efforts have been made by researchers towards the development of data-driven approaches for incident analysis. Nevertheless, many developed approaches have shown limited success in the field. This is largely attributed to the long detection time (i.e., waiting for overwhelmed upstream detection stations; meanwhile, downstream stations …

The Relationship Between Virginia Title 1 Spending And Minority Male Graduation Rates: A Longitudinal Study, Anastacio B. Marin

Educational Leadership & Workforce Development Theses & Dissertations

Over the past two decades, education funding in the United States has been redistributed to schools that lack sufficient financial resources to meet the needs of students (Boyle & Lee, 2015). The No Child Left Behind (NCLB) Act of 2001, the reauthorized Elementary and Secondary Education Act (ESEA), was enacted to increase academic accountability and achievement throughout the nation’s public-school systems. Nationwide, there is a persistent achievement gap between historically marginalized students and their affluent peers. This gap is evident in the Commonwealth of Virginia when measuring student proficiency on End of Course Assessments (EOCAs). For schools serving a large …

Sociopolitical Crisis And The Rise Of A Social Justice Superintendent In Charlottesville, Sara Lourdes Epperly

Educational Leadership & Workforce Development Theses & Dissertations

This qualitative case study examined one school superintendent’s handling of a sociopolitical crisis event over the course of its phased unfolding. A review of literature in the fields of both crisis management and social justice educational leadership supplied a conceptual lens for viewing the case. Key concepts from the crisis management literature included staged intervention, organizational learning, and transformative leadership. Key concepts from the literature of social justice educational leadership included criticality, inclusion, relationshipbuilding, and capacity-building. The study methodology involved the conduct of 17 interviews and collection of more than 100 related documents. Analysis of the data supported a series …

Analysis Of Capital Distribution Among Ohio’S Publicly Funded Higher Education Institutions, John D. O’Brien

Educational Leadership & Workforce Development Theses & Dissertations

In 2012, Governor Kasich instituted a call-to-action, “Campus leaders throughout Ohio must work together to rethink how the state allocates its investment in our public higher educational facilities.” (Ohio Higher Education Capital Funding Commission, 2016). The intent of Governor Kasich was to drive more equitable outcomes and opportunities in higher education, including capital allocation (2016). However, despite the changes in processes over time, there continues to be disproportion in allocation of capital funding (Maiden & Stearns, 2007; Manns, 2004; Tandberg 2010).

A deeper understanding of the historical and current trends of capital allocation to postsecondary public institutions in Ohio is …

Climate Change Games As Boundary Objects: Fostering Dialogic Communication Within Stakeholder Engagement, Megan L. Mckittrick

English Theses & Dissertations

Rising waters and the increasing devastation of flood events make coastal resilience a significant issue in the Hampton Roads region of Virginia, particularly in the city of Norfolk. Enhancing resilience requires ongoing stakeholder engagement designed to invite dialogue while encouraging cross-jurisdictional collaboration and comprehensive problem-solving. Climate change games have been employed to support these endeavors. This dissertation provides a response to the following research questions: 1) What is the origin of the climate change game genre? 2) Why are key stakeholders in coastal resilience using climate change games? And 3) how do these games operate for these key stakeholders? To …

Chief Academic Officers And The Aacc's Leadership Competencies, Josh Philip Lavorgna

Educational Leadership & Workforce Development Theses & Dissertations

Chief Academic Officers (CAOs) hold one of the most vital senior leadership positions at community colleges. Typically thought to be the second person in charge, directly under the president, their impact on the community college is crucial. CAOs have historically been considered the next in line to the president, and community college presidents were often CAOs before assuming their first presidency. The American Association of Community Colleges (AACC) publishes Leadership Competencies for hopeful and current community college leaders. This study examined the perceptions of community college CAOs regarding the AACC Leadership Competencies for Aspiring Chief Executive Officers (CEOs), or presidents. …

A Model Of Individual, Relationship, And Societal Factors And Mental Health And Well-Being In Partnered Sexual Minority Women: The Central Role Of Relationship Satisfaction, Charlotte A. Dawson

Psychology Theses & Dissertations

Sexual minority women (SMW) are at increased risk for mental health disorders, substance abuse, and physical health problems compared to heterosexual women. For heterosexual individuals, romantic relationships have been found to be protective against a variety of health issues. Less research, however, has focused on the association between romantic relationships and health in same-sex couples. The purpose of this study was to examine the potential protective nature of being in a relationship for SMW and to test a model investigating the central role of relationship satisfaction in the association between individual, relationship, and societal factors and mental health and well-being …

Language Ability And Concurrent Predictors Of Pragmatic Communication In Children With Williams Syndrome Or 7q11.23 Duplication Syndrome., Amanda G. Harmon

Electronic Theses and Dissertations

The present project examined the language abilities of children with two reciprocal neurogenetic disorders: Williams syndrome (WS), which is caused by a hemideletion of 26 - 28 genes on chromosome 7q11.23, and 7q11.23 duplication syndrome (Dup7), which results from an extra copy of the same 26 - 28 genes. Appraising the language of children with WS and Dup7 helps in understanding the communication difficulties they encounter. There were three research goals. The first was to determine the overall level of language and communication ability as measured by the Children’s Communication Checklist-2 (CCC-2; Bishop, 2006) for each syndrome, relative to chronological …