Digital Commons Network^™

Vision-Based Framework For Monitoring Of Eating Behavior Of Persons With Alzheimer’S Disease, Haitham Al-Anssari

Dissertations

Dementia is a syndrome used to describe an array of significant declines in cognitive abilities due to progressive and irreversible loss of neurons and brain functioning. This neurodegeneration seriously affects daily life activities like driving, shopping, working and speaking. Among these, Alzheimer’s disease is the most common type of dementia, with individuals experiencing loss of memory and thinking and reasoning skills. Due to cognitive decline, individuals with Alzheimer’s often suffer from malnutrition, since they do not eat, even when food is presented, and must be fed with assistance. This assistance presents a significant burden of time to caregivers, and consequently …

Implication Of Item And Test Differential Functioning In Criterion-Referenced Tests, Xiaojie Hu

Dissertations

In a compensatory criterion referenced test (CRT) it is common that the test developer maximizes the test information at or near the cut score location. This is believed to produce the highest classification accuracy. However, a recent study showed that the optimal location to maximize test information for highest classification accuracy (CA) and consistency (CC) also depends on factors such as test length, cut score location, the examinee ability distribution, and the test model applied for latent trait estimation (Wyse & Babcock, 2016). Moreover, when unintentional secondary dimensions are also measured (nuisance dimension caused by test construction, test standardization, or …

Understanding The Experiences Of Students Re-Admitted After Academic Suspension As Part Of A University-Initiated Process: A Qualitative Study, Gary L. Versalle

Dissertations

Student persistence and retention continues to be a major issue facing most institutions of higher education. With ever more diverse student populations, researchers studied a multitude of groups and sub-groups of students based on ethnicity, sex, socioeconomic status, or age. These studies looked at how these various student groups can be supported and retained. Students who returned to school after having been academically dismissed are one group which has been consistently underreported. Reentry practices remained largely unchanged and still require the student to initiate the process. This phenomenological study examined the experiences of students accepted into the Reclaim the W …

Preventing Sexual Victimization: An Assertiveness Training Program For Female Adolescents, Emily Morgan

Dissertations

Unwanted sexual experiences occur too frequently in the United States and result in myriad deleterious consequences. The first instances of unwanted sexual experiences for females most frequently occur during adolescence (ages 12 to 17). Despite this, the majority of literature on sexual victimization and victimization prevention programs focus on college-aged females, thus leaving a need for research on prevention programs for adolescent females. The present study examined the effects of an assertiveness training program on the risk for sexual coercion among adolescent females. A behavioral skills training model (i.e. instruction, model, rehearsal, and feedback) was used to teach seven adolescent …

Assessing Land Deformation And Sea Encroachment In The Nile Delta: A Radar Interferometric And Modeling Approach, Esayas Gebrekidan Gebremichael

Dissertations

Many of the deltas of the world are experiencing land deformation, subsidence or uplift of landmass, due to natural or anthropogenic causes, or a combination of both processes and causes. These deltaic settings are densely populated and border some of our world’s largest water bodies (oceans and seas). The land deformation, especially the subsidence component, when combined with the climate change-induced sea level rise, coastal erosion, and other anthropogenic drivers, will undoubtedly impact the population and economy of coastal areas of deltas. For the Nile Delta of Egypt, the land deformation processes and the factors that control the deformation processes …

Finite Element Modeling And Experimental Characterization Of Knot Configuration Effect On The Mechanical Performance Of Surgical Suture, Arz Y. Qwam Alden

Dissertations

Tendon injuries in orthopedic surgery and sports medicine are escalating; hence there is great interest in improving tendon repair. The integrity of tendon repair depends in part on a combination of suture material, suture size and knot configuration. Recent studies have indicated the failure of surgical knots as a failure mode during surgical repair. Further, there is still no consensus on the ideal (best/safest) surgical knot techniques. Also, this failure mode is related to stress concentrations, which cannot be easily established with traditional tensile testing. Most researchers have focused on the measurement and comparison of the gross structural response of …

A Systematic Comparison Of Functional Assessment Outcomes In Organizational Behavior Management, Nathan T. Bechtel

Dissertations

The primary purpose of this study was to compare the recommendation outcomes of two commonly utilized functional assessment tools in the field of Organizational Behavior Management (OBM): the Performance Diagnostic Checklist (PDC) and the Performance Flowchart. Recommendations made using these tools fell into one of three categories: antecedent-based, consequence-based, and uncategorized interventions. In order to assess the recommendations resulting from each of these tools, participants were trained to either (a) play the role of a manager with an organizational issue, or (b) play the role of a performance consultant. A between-groups design was utilized in which performance consultants used either …

The Place Of Art In Black Panther Party Revolutionary Thought And Practice: From Revolution To Reform, A Content Analysis, Michael James Macaluso

Dissertations

The Black Panther Intercommunal News Services (BPINS) was one of the most powerful black presses and a mechanism to build an imagined political community. Unfortunately, the scholarly and sociological literature examining the artwork of the Black Panther Party published in BPINS has been inadequate. Most work to date focuses solely on one artist, Emory Douglas, the Party’s Minister of Culture and primary editor of their press. Many other artists contributed to the collective endeavor of art and organization at large. The artwork of the Black Panther Party was a communal enterprise geared toward the promotion of political consciousness through visual …

Radiative Double Electron Capture (Rdec) By Fully-Stripped Fluorine Ions In Collisions With Nitrogen, Nuwan Sisira Kumara

Dissertations

Radiative double electron capture (RDEC) by highly-stripped ions in collisions with atomic targets is a fundamental process that can be used to study electron-electron correlation, the interaction between two electrons, in the vicinity of the Coulomb field of a bare ion. In this process two electrons from the target are captured to bound states of the projectile with the simultaneous emission of a single photon. RDEC is closely related to the well-known one-step atomic process of radiative electron capture (REC), in which a target electron is captured to the projectile and a photon is simultaneously emitted. REC and RDEC can …

Administrative Barriers To Compliance With The 2010 Ncaa Policy On Concussion Management, Tyler Norman

Dissertations

Concussions and concussion management in sport have become a polarizing public health issue. The best concussion assessment practices and “return-to-play” guidelines have been debated in both the scientific arena and in the media. At risk is the health of the athletes when proper diagnosis and treatment are not accurate for this potentially devastating injury.

Recent research estimates that approximately 1.6 – 3.8 million sport-related concussions occur each year in the United States (Brady, 2011), which can lead to chronic disease, swelling of the brain, cognitive impairment, chronic headaches, mood disorders, depression, blurred vision, double vision, cranial hemorrhaging and death if …

Three Essays On The Impacts Of China’S Monetary Policy, Shen Chen

Dissertations

China has experienced high speed of economic growth, trying to catch up with the developed countries. Monetary policy has played a more and more important role in China. This dissertation studies the impacts of China's monetary policy on China's housing market, stock market, and China's economic growth.

The first essay examines macroeconomic determinants of China's housing price by constructing a VAR model. Granger Causality tests, impulse response functions and variance decompositions are used to analyze the impacts of macroeconomic factors on the housing price. By using the monthly data from 2005 to 2015, the results show that a contractionary monetary …

Concussion In Student Athletes: Prevention, Assessment, And Recovery, Miriam A. Carroll-Alfano

Dissertations

The research presented in this study examines concussion among athletes from the perspectives of prevention, assessment, and recovery. The first study examines concussion education for high school athletes by surveying 157 collegiate athletes, who primarily attended high school in Illinois and Indiana, about the previous concussion education, including whether they received mandated education, the methods and providers of education, and their ability to name a variety of concussion symptoms. This study finds that despite legislative mandates in these states, 20% of student-athletes continue to report not receiving concussion education in high school, with females more likely to report not receiving …

Photoreception And Eye Regeneration Mechanisms In Planarians, Taylor R. Birkholz

Dissertations

Although humans lack the ability to regenerate complete organs and limbs following amputation or injury, there are many other species (both vertebrates and invertebrates) that can. Significant advances have been made in understanding the genetic mechanisms that regulate organ regeneration in these species, including regeneration of eye tissues such as the lens and retina. Planarians are an established historical model used to study regeneration due to their ability to regenerate any organ, including the eye. With recent advances in molecular genetic analyses, planarians are now an emerging model for the specific study of eye regeneration mechanisms. Furthermore, regeneration of the …

Looking Inward: Higher Education Public Relations And Internal Communication, Kelly A. Campbell

Dissertations

There has been a decline in public good will toward institutions of higher education for nearly four decades. Resultantly, the public, media, and politicians call for greater transparency. It would be beneficial for institutions of higher education to utilize strategic means to communicate their stories, successes and brand directly to various publics. A critical, albeit often an overlooked public, are the employees of the university. They can serve as ambassadors for the university interacting with outside publics. In this capacity, not only do employees need to know information about their organization to function well at their positions, they also need …

Towards Automated Domain-Oriented Lexicon Construction And Dimension Reduction For Arabic Sentiment Analysis, Hasan A. Alshahrani

Dissertations

Sentiment analysis is a type of text mining that uses Natural Language Processing (NLP) tools to identify and label opinionated text. There are two main approaches of sentiment analysis: lexicon-based, and statistical approach. In our research, we use the lexicon-based approach because the lexicon contains sentiment words and phrases which are the main linguistic units to express sentiments. More specifically, we work with domain-oriented lexicons as they are more efficient than general ones because the polarity is heavily driven by domains.

Arabic language has a degree of uniqueness that makes it hard to be processed with the available cross-language tools …

Development And Validation Of Hybrid Continuum/Structural Finite Element Model For Evaluating Foot And Ankle Biomechanics, Saif Alrafeek

Dissertations

Bone is composed of two structures: compact bone and spongy bone. Spongy bone porosity highly affects the strength and the physical endurance of bone to carry loads. Most studies use continuum finite element (FE) approaches to model spongy bone and neglect porosity. Neglecting porosity may not efficiently assist orthopaedic surgeons to treat patients who experience bone physical disability. The purpose of this study is to demonstrate an inexpensive approach that simulates spongy bone with more accurate capturing of porosity and less requirements of bone information. The approach is developed through investigating the mechanical characteristics of spongy bone; that is, by …

Retinex-Based Visibility Enhancement System For Inclement Weather With Tracking And Distance Estimation Capabilities, Marwan S. Alluhaidan

Dissertations

Road conditions affected by weather are well known to have an impact on the number of vehicle accidents and fatalities, due to low- to no-visibility conditions. According to the U.S. Department of Transportation, there are more than 1,259,000 crashes each year. On average, 6,000 people are killed and more than 445,000 people are injured annually due to severe weather conditions. These accidents could be significantly reduced if real-time visibility enhancement systems were made available. However, eliminating the impact of weather conditions on visibility is still lacking and beyond our control. The time has come to develop technology that is capable …

Development And Characterization Of Nano Nickel-Based Conductive Inks For Flexographic Printing Of Electronics And New Interpretations Of Surface Energies Of Solids, Bilge Nazli Altay

Dissertations

Traditional printing technologies and conductive/functional inks have been integrated to print electronic devices and circuits on really think, lightweight and flexible materials in a time and cost-effective manner. Printing is an additive manufacturing technology, which selectively deposits materials only where needed to produce a wide range of devices including sensors, smart packaging, solar panels, batteries, light sources and wearable electronics. Therefore, it greatly reduces the number of required steps for manufacturing as well as the amount of waste generated relative to conventional electronic manufacturing. However, the process requirements and ink formulations to print electronics differ from graphic printing; therefore, the …

Generalized Line Graphs, Mohra Abdullah Z. Alqahtani

Dissertations

With every nonempty graph, there are associated many graphs. One of the best known and most studied of these is the line graph L (G) of a graph G, whose vertices are the edges of G and where two vertices of L (G) are adjacent if the corresponding edges of G are adjacent. This concept was implicitly introduced by Whitney in 1932. Over the years, characterizations of graphs that are line graphs have been given, as well as graphs whose line graphs have some specified property. For example, Beineke characterized graphs that are line graphs by forbidding certain graphs …

Protecting Privacy Of Data In The Internet Of Things With Policy Enforcement Fog Module, Abduljaleel Al-Hasnawi

Dissertations

The growth of IoT applications has resulted in generating massive volumes of data about people and their surroundings. Significant portions of these data are sensitive since they reflect peoples' behaviors, interests, lifestyles, etc. Protecting sensitive IoT data from privacy violations is a challenge since these data need to be handled by public networks, servers and clouds, most of which are untrusted parties for data owners. In this study, a solution called Policy Enforcement Fog Module (PEFM) is proposed for protecting sensitive IoT data. The primary task of the PEFM solution is mandatory enforcement of privacy polices for sensitive IoT data-whenever …

Evaluating Recommendations Versus Utilization Of Essential Components Of A Functional Analysis Procedure, Alissa Conway

Dissertations

Functional behavior assessment (FBA) has been identified as an essential process for behavior analytic practitioners to identify the variables maintaining challenging behaviors (BACB Professional and Ethical Compliance Code for Behavior Analysts (PECC), 3.01ab, 2014). FBAs include a range of strategies, including indirect measures (e.g., interviews and questionnaires) and direct measures of behavior (descriptive and experimental strategies). Functional analysis (FA) is typically considered the most sophisticated of the options subsumed under FBAs in that it involves both direct measures of behavior and experimental manipulation of hypothesized controlling variables to identify controlling variables for challenging behaviors. The results of FAs allow practitioners …

Assessing The Supports And Variables Needed For Graduation Of Students Receiving Special Education Service: A Longitudinal Study, Jennifer Dewaard

Dissertations

Graduation from high school is an important measure of success for both schools and individuals. While requirements for graduation change, the rate at which students receive a diploma within four years is on the rise. But students who receive special education services continue to have a lower graduation rate than the general population. It is imperative for both schools and individual students to increase this rate and close the gap for those receiving a diploma.

The purpose of this study is to examine that gap between graduation rates for the total population of a high school in West Michigan compared …

Stakeholder Perspectives: Implementation Of Local School Wellness Policies In The Kent Intermediate School District, Adrienne A. Wallace

Dissertations

The purpose of this study was to explore attitudes and perception of stakeholders (teachers, principals, nutrition service directors, nutrition service supervisors, school nurses, nutrition specialists and administrators) toward the implementation of the local school wellness policy in public schools within Kent County, Michigan. The subjects of interest were stakeholders from more than 300 schools and 20 public school districts within the Kent Intermediate School District. Subjects responded to a survey assessing their perspectives regarding the implementation of the local school wellness policy pursuant to the Healthy Hunger-Free Kids Act of 2010 an Obama-era policy, the results were then examined using …

Exploring Potential Water-Ice Occurrence On Asteroid 4 Vesta Using Orbital Radar Observations By The Dawn Mission, Elizabeth M. Palmer

Dissertations

Airless, differentiated planetesimals in the inner solar system were presumed to have been depleted of most of their initial volatile content during formation. However, water-ice has been discovered at the lunar poles (Li et al., 2018), is inferred to exist in polar craters on Mercury (e.g., Butler, Slade & Muhleman, 1993, and suggested to survive beneath the dusty regolith of objects in the main asteroid belt if buried at sufficient depths—at least one meter for small-bodies in the outer main-belt (Schorghofer, 2008). Hence, the study of volatile occurrence, past or present, on airless, desiccated small-bodies provides insights into the timing, …

Are Experienced Principals More Likely To Implement The Attributes Of The Three-Minute Walkthrough Program Than Less-Experienced Principals?, Trent Mosley

Dissertations

Today, in this era of accountability, school improvement rests heavily on the shoulders of building principals. Apart from being managers of school operations, disciplinarians, and community leaders, these individuals are also expected to be strong instructional leaders (Crum & Sherman, 2008). Principals now must engage in strategies that will lead the cycle of continuous improvement. One such strategy that has emerged is classroom walkthroughs (Cervone & Martinez, 2007). Classroom walkthroughs serve as a vehicle through which principals can engage teachers in a process that can lead to positive effects on teaching strategies through instructional conferences (Blasé & Blasé, 1998; King, …

A Recipe For Success In The ‘English World’: An Investigation Of The Ex-Amish In Mainstream Society, Jessica R. Sullivan

Dissertations

As a largely understudied and misunderstood religious group, the Amish appear to be a relic of more traditional times. Because they are a secluded group with little influence from the outside world, they remain relatively untouched by technology and social media. This results in a strict, fundamentalist church community with extremely high rates of retention. Distancing themselves from outsiders and temptations in the English world aids in retaining strong church boundaries, and results in a population that doubles every 20 years (Kaufmann 2010). Acknowledging these aspects, this research delves into the lives of those who have defected from the church …

Hybrid Processes In Material Removal Of Hard And Brittle Materials, Hossein Mohammadi

Dissertations

New technologies demand new materials with better mechanical, optical, and thermal properties. Materials that are light weight, strong with high resistance to high temperatures, and compatible with a predetermined condition. Such materials usually are challenging to manufacture and process compared to widely available materials such as metals. Ceramics and semiconductors are considered extremely hard and brittle, making them very difficult to cut and manufacture. The other major and fast-growing type of materials are composites (including Ceramic Matrix Composites, CMC) that are also considered very challenging to machine. All these materials have many applications in major industries (i.e. electronics, aerospace, optics, …

The Effect Of Item Stem And Response Option Length On The Item Analysis Outcomes Of A Career And Technical Education Multiple Choice Assessment, Tina M. Koepf

Dissertations

Critical decisions in Career and Technical Education (CTE) can be based on assessment outcomes, requiring an essential focus on continuous improvement initiatives to provide increased multiple choice (MC) assessment validity. Previous research has determined that the presence of flawed test items negatively impacts student success; therefore, an MC taxonomy has been established and used in the assessment industry. While rigorous and successful Career and Technical Education (CTE) programs that enroll high-level academic students exist, many CTE programs enroll students with a wide spectrum of academic ability. Because many CTE students often have inferior reading skills, it is necessary to take …

Integrated Compressive Sensing And Feature Descriptors- A Framework For Facial Recognition Systems, Ali Kadhem Jaber

Dissertations

Facial recognition is still a challenge in many applications, particularly in surveillance, security systems, and human-computer interactive (HCI) tools. The impact of real-world environmental variations on the performance of any facial recognition system can be significant. These variations may include illumination, facial expressions, poses, disguises (facial hair, glasses or cosmetics) and partial face occlusion. Furthermore, the number of images (samples) needed for facial recognition systems can be very large, much larger than what is typically required by an algorithm, and this is often made worse with expansion of the feature space dimensionality. Truly, the “curse of dimensionality” haunts any real-time …

Strongly Bonded Supervisory Relationships: Demystifying The Bond Aspect Of The Supervisory Working Alliance, Melissa Heinrich

Dissertations

The current study explores the bond aspect of the supervisory working alliance through the lens of relational-cultural theory (RCT). Previous research posits a quality supervisory relationship is important for effective supervision and clinical outcomes. The Supervisory Working Alliance (SWA; Bordin, 1983) is a pan-theoretical model for the growth process in supervision including (a) mutual agreement on goals for supervision, (b) mutual agreement on associated tasks for accomplishing the goals, and (c) the emotional bond in the supervisory relationship. The process for mutual agreement of goals and tasks seems clear, the bond aspect of the SWA seems less clear. Research concerning …