Digital Commons Network^™

Association Of Mental Health Literacy And Depression Symptoms Among Young Adolescents In Selangor, Lakha Singh Sarbhan Singh

Student Works (2020-2029)

Mental health literacy (MHL) relating to depression (depression literacy) is a multifaceted concept comprising of knowledge of depression, help seeking and stigma components, that plays an important role in depression outcomes. The aim of this study was to examine the association of depression literacy components namely knowledge of depression, help seeking, stigmatising attitudes and adequacy of depression literacy with depression symptoms among adolescent in Malaysia. This study reports on the common tools used to examine depression literacy, validation of the MHL and Stigma questionnaire and Centre for Epidemiological Studies Depression scale (CES-D) Malay version questionnaire, findings of the depression literacy …

Cagniard-Dehoop Technique-Based Computation Of Retarded Partial Coefficients: The Coplanar Case, Martin Stumpf, Giulio Antonini, Albert E. Ruehli

Electrical and Computer Engineering Faculty Research & Creative Works

Efficient computation of partial elements plays a key role in the Partial Element Equivalent Circuit (PEEC) method. A novel analytical method for computing retarded partial coefficients based on the Cagniard-DeHoop (CdH) technique is proposed. The methodology is first theoretically developed and then illustrated on the computation of a surface retarded partial coefficient pertaining to two coplanar rectangular surface elements. An efficient way for incorporating loss mechanisms in the time domain (TD) via the Schouten-Van der Pol theorem is proposed. Illustrative numerical examples demonstrating the validity of the introduced solution are given.

Exploiting Feedback Information In Cognitive Radio Systems, Sara Abozeid Attlla

Theses and Dissertations

In this thesis, we consider a cognitive radio (CR) network where the primary network's feedback information is utilized to design access schemes for the secondary network, to exploit the underutilized primary spectrum resources. Secondary users (SUs) identify the spectrum opportunities by sensing the spectrum for primary users (PUs) activities and by listening to the PUs feedback. The feedback signals monitored in this research work are the channel quality indicator (CQI) and automatic repeat request (ARQ) available in the PUs network. For detecting the PUs activities, SUs employ hard/soft energy sensing. The secondary access decisions are optimized to maximize the SUs …

Business Process Specification, Verification, And Deployment In A Mono-Cloud, Multi-Edge Context, Saoussen Cheikhrouhou, Slim Kallel, Ikbel Guidara, Zakaria Maamar

All Works

© 2020, ComSIS Consortium. All rights reserved. Despite the prevalence of cloud and edge computing, ensuring the satisfaction of time-constrained business processes, remains challenging. Indeed, some cloud/edge-based resources might not be available when needed leading to delaying the execution of these processes’ tasks and/or the transfer of these processes’ data. This paper presents an approach for specifying, verifying, and deploying time-constrained business processes in a mono-cloud, multi-edge context. First, the specification and verification of processes happen at design-time and run-time to ensure that these processes’ tasks and data are continuously placed in a way that would mitigate the violation of …

Calcium Signaling In Endocardial And Epicardial Ventricular Myocytes From Streptozotocin-Induced Diabetic Rats, Lina T. Al Kury, Vadym Sydorenko, Manal M.A. Smail, Muhammad A. Qureshi, Anatoly Shmygol, Dimitrios Papandreou, Jaipaul Singh, Frank Christopher Howarth

All Works

© 2020 The Authors. Journal of Diabetes Investigation published by Asian Association for the Study of Diabetes (AASD) and John Wiley & Sons Australia, Ltd Aims/Introduction: Abnormalities in Ca2+ signaling have a key role in hemodynamic dysfunction in diabetic heart. The purpose of this study was to explore the effects of streptozotocin (STZ)-induced diabetes on Ca2+ signaling in epicardial (EPI) and endocardial (ENDO) cells of the left ventricle after 5–6 months of STZ injection. Materials and Methods: Whole-cell patch clamp was used to measure the L-type Ca2+ channel (LTCC) and Na+/Ca2+ exchanger currents. Fluorescence photometry techniques were used to measure …

In-Situ X-Ray Imaging Of The Selective Laser Melting Process, Meelap M. Coday

Masters Theses

"Fusion-based metal additive manufacturing (AM) has garnered much interest in recent decades. Despite the popularity of fusion-based AM technologies such as selective laser melting (SLM), there are still fundamental questions and uncertainties that need to be addressed. In this work, we focus on the understanding of the undercooling in the SLM process and the uncertainties induced by the laser beam size, power, and scan speed. First, we report the estimation of undercooling in the SLM process from the solidification rate measured by in-situ high-speed synchrotron x-ray imaging, based on the dendrite growth velocity model. The undercooling changes as a function …

Design And Development Of Power Processing Units For Applications In Electrically-Propelled Satellite Systems, Kartikeya Jayadurga Prasad Veeramraju

Masters Theses

"Electrospray technology provides a way to ionize specialized liquids by applying high voltages across a sharp porous tip and a metallic mesh. This technology is widely used in the field of mass spectroscopy for generating ions for testing purposes. The dawn of nano-satellites posed new challenges in the miniaturization of many conventional satellite sub-systems. One significant challenge faced in such a process was the miniaturization of the propulsion system. Electrosprays have started to find their application in the field of Aerospace Engineering and now are formally known as Electrospray Thrusters. These thrusters provide high specific impulse and are attractive substitutes …

Computer Vision Based Deep Learning Models For Cyber Physical Systems, Muhammad Monjurul Karim

Masters Theses

“Cyber-Physical Systems (CPSs) are complex systems that integrate physical systems with their counterpart cyber components to form a close loop solution. Due to the ability of deep learning in providing sensor data-based models for analyzing physical systems, it has received increased interest in the CPS community in recent years. However, developing vision data-based deep learning models for CPSs remains critical since the models heavily rely on intensive, tedious efforts of humans to annotate training data. Besides, most of the models have a high tradeoff between quality and computational cost. This research studies deep learning algorithms to achieve affordable and upgradable …

Comparison Of Reynolds-Averaged Navier-Stokes Turbulence Models For Simulating Boundary Layers In Hypersonic Flows, Jorge-Valentino Kurose Bretzke

Masters Theses

“This study describes the use of Computational Fluid Dynamics (CFD) codes to simulate hypersonic boundary layers using several different turbulent closure models and comparing Reynolds-Averaged Navier-Stokes (RANS) simulations against Direct Numerical Simulations (DNS) of similar test cases. The test cases in this study consist of a flat plate in a Mach 8 freestream with a zero pressure gradient and wall recovery ratio of 0.48, as well as a Mach 8 axisymmetric nozzle also with a cold wall. The RANS models used in this study are the Spalart-Allmaras model, Baldwin-Lomax model, Menter K-Omega Baseline and Menter K-Omega Shear Stress Transport models. …

Determining Variable Depth To Bedrock Using Ert And Masw: A Geophysical Investigation In St. Louis, Mo, Justin James Clinton

Masters Theses

“The research involves a geophysical study in the Maremec River Valley in St. Louis County, Missouri. The geophysical methods described in this paper can provide a relatively quick, inexpensive, and accurate means in investigating the lithologic characteristics of the subsurface. Method selection is ultimately dependent of the type of investigation and site-specific characteristics. In this investigation, Electrical Resistivity Tomography (ERT) data and Mutli-Channel Analysis of Surface Waves (MASW) data were acquired to image the bedrock beneath the Maremec River to an approximate depth of 110 ft or an elevation of 300 ft for a proposed wastewater tunnel. Two overlapping dipole-dipole …

On The Investigation Of Hot Tearing Behavior Of Continuous Cast Steel, Yanru Lu

Masters Theses

”Hot tearing has long been recognized as a major problem that plagues the development of the continuous casting process and results in low-quality products. Understanding of the mechanisms and the required conditions for the hot tearing formation is important for industries but has not been well-established yet. Thus, this research focuses on the hot tearing issue observed in continuous cast steel, by providing a summary of the current research progress and then introducing a new laboratory method to determine the thermo-mechanical properties relevant to hot tearing of different steel grades under different solidification conditions. In this method, an apparatus was …

Performance Evaluation Of Alsi10mg Fabricated By A Selective Laser Melting Process, David Michael Murphy

Masters Theses

“Selective laser melting is becoming a widely used additive manufacturing technique that melts metal powder in a layer by layer process in order to build a desired part or geometry. Like many additive processes, selective laser melting allows for fabrication of parts with complex geometries. In order to fabricate a fully dense part there are a number of variables to take into account including: powder characteristics, laser parameters, and environmental parameters. Each of these variables can affect the microstructure and thus the mechanical performance of an additively manufactured part. In this work, the aluminum alloy AlSi10Mg was investigated. AlSi10Mg is …

Combining Laser Aided Ablation And Polishing To Minimize Surface Roughness Of Additively Manufactured Aluminium Components, Sahil Bipinkumar Patel

Masters Theses

“The surface roughness of additively manufactured parts is much higher than the acceptable range for most applications, thus post-processing is needed to qualify these parts for use. Laser polishing can be used to bring the surface roughness in an admissible range, but if the initial roughness is very high then the energy density for the polishing process needs to be very high to achieve a significant reduction in roughness. This high energy density can produce many process defects. Also, laser polishing alone cannot get rid of high wavelength asperities. Any waviness in the part can be linked with initial waviness …

Decentralized Telemedicine Framework For A Smart Healthcare Ecosystem, Ahed Abugabah, Nishara Nizamuddin, Ahmad Ali Alzubi

All Works

The healthcare sector is one of the most rapidly growing sectors globally. With the ever-growing technology, patient care, regulatory compliance, and digital transformation, there is an increased need for healthcare sectors to collaborate with all stakeholders – both within the healthcare ecosystem and in concurring industries. In recent times, telemedicine has proven to provide high quality, affordable, and predominantly adapted healthcare services. However, telemedicine suffers from several risks in implementation, such as data breach, restricted access across medical fraternity, incorrect diagnosis and prescription, fraud, and abuse. In this work, introduce blockchain-based framework that would unlock the future of the healthcare …

Leveraging Community Health Worker Program To Improve Healthcare Access For Sickle Cell Disease In Georgia, Jeanette H. Nu'man, Milford Greene

Journal of the Georgia Public Health Association

A five-year project, Access to Care was developed and implemented by the Sickle Cell Foundation of Georgia (SCFG) leveraging community resources and partnerships to increase access and improve the quality of healthcare and healthcare coordination in an adult sickle cell disease (SCD) population in underserved and rural areas of Georgia. The project is comprised of three phases: (Phase 1) the Community Health Worker Program - to improve the health outcomes of individuals living with SCD through healthcare coordination; (Phase 2) the CME-accredited Provider Training Program - to increase the knowledge of non-specialty providers in Georgia to increase provider capacity and …

Been There, Done That: Quasi-Experimental Evidence About How, Why, And For Who, A Previous Visit Might Increase Stopover Destination Loyalty, Steven Pike, Filareti Kotsi, Frank Mathmann, Di Wang

All Works

© 2020, © 2020 Informa UK Limited, trading as Taylor & Francis Group. Despite stopovers being a part of long-haul air travel since commercial flights commenced over 80 years ago, the first published research on the phenomenon did not appear until 2016. Also, even though destination image has been the most researched construct in the destination marketing literature, no studies had measured perceptions of a destination in the context of a stopover until 2018. This study makes a contribution to this emerging research field by reporting how a quasi-experimental design found previous visitation enhances destination image and destination loyalty in …

Bodacious-Instance Coverage Mechanism For Wireless Sensor Network, Shahzad Ashraf, Omar Alfandi, Arshad Ahmad, Asad Masood Khattak, Bashir Hayat, Kyong Hoon Kim, Ayaz Ullah

All Works

Copyright © 2020 Shahzad Ashraf et al. Due to unavoidable environmental factors, wireless sensor networks are facing numerous tribulations regarding network coverage. These arose due to the uncouth deployment of the sensor nodes in the wireless coverage area that ultimately degrades the performance and confines the coverage range. In order to enhance the network coverage range, an instance (node) redeployment-based Bodacious-instance Coverage Mechanism (BiCM) is proposed. The proposed mechanism creates new instance positions in the coverage area. It operates in two stages; in the first stage, it locates the intended instance position through the Dissimilitude Enhancement Scheme (DES) and moves …

Exploration Of Lifestyle Choices, Reproductive Health Knowledge, And Polycystic Ovary Syndrome (Pcos) Awareness Among Female Emirati University Students, Sreepoorna Pramodh

All Works

© 2020 Pramodh. Objective: Healthy lifestyle and adequate reproductive health knowledge are prerequisites for maintenance of physical and mental well-being of women across the world. With increasing prevalence of metabolic disorders such as polycystic ovary syndrome (PCOS), it is important that sufficient awareness of these issues is generated, especially in conservative communities in Arab regions. The main objective of this study is to assess reproductive health (RH) knowledge and awareness of PCOS among female Emirati students and also to explore their lifestyle choices. Materials and Methods: A total of 493 Emirati students were recruited based on convenience sampling and completed …

Federal Grant Rules And Realities In The Intergovernmental Administrative State: Compliance, Performance, And Politics, Eloise Pasachoff

Georgetown Law Faculty Publications and Other Works

Federal grants are one of the government’s most important policy tools. While high-profile debates about constitutional coercion, entitlement reform, and budget cuts receive most of the public attention given to federal grants, a more prosaic but equally important reality describes the operation of these grants on the ground: the web of detailed rules and massive enforcement structure devoted to the administrative side of federal grants, which this Article refers to as “the grants-management regime.” Unacknowledged in the legal literature, the grants-management regime drives the implementation of federal grants and tells a very different story than the standard concern about feckless …

An Exploration Of Barriers And Supports Of High School Equivalency Diploma (Hsed) Graduates Transitioning To Postsecondary Education, Chanell Butler Morello

Theses and Dissertations

This applied dissertation was designed to explore the perceived barriers and supports of High School Equivalency Diploma (HSED) graduates upon their consideration of attaining a higher education degree at a community college in North Carolina. Other areas explored in this qualitative study included the way completing the HSED program changes a student’s perception of learning and/or increases his or her motivation to continue their studies.

A primary objective of the Basic Skills programs, also known as College and Career Readiness programs, is to transition as many students as possible to postsecondary education and employment. In spite of such goals, North …

Law Enforcement Officers As Victims Of Felonious Killings And Assaults: An Analysis Of The Predictors Of Lethality And The Likelihood Of Officer Assault Or Death, Gabriella Mercado

Theses and Dissertations

This study was designed to explore the predictors of lethality for the outcome of police officer assault with injury and felonious death. Recent news has focused on police brutality and their excessive use of force. Conversely, the inverse relationship has not received much focus. To explore the aforementioned relationship, data from the LEOKA program on 1,375 officers who were feloniously killed or assaulted with serious injury between the years of 2008 and 2017 were examined to determine the statistical significance between several predictor variables and the outcome variable.

Binary logistic regression was used to answer the research questions posed by …

Understanding Byod Implementation Experiences Of School Teachers And Administrators: A Phenomenological Perspective, Sophia Lafayette-Lause

Theses and Dissertations

The use of technology to enhance instruction and learning is a daily expectation in public school classrooms throughout the State of Michigan and the United States. Schools are implementing bring your own device/bring your own technology (BYOD/BYOT) programs to meet the demand of providing students access to technology. As a result, students are bringing personal communication devices (cell phones, smartphones, tablets) to school in ever-increasing numbers. Students are using these devices in the classroom for a variety of purposes including the use of social media applications. However, school district policies have not been thoroughly updated to address the implementation of …

Employers’ Attitudes Towards Individuals With A Physical Disability During The Hiring Process, Alix Jean-Joseph

Theses and Dissertations

Decades of research in the field of disability and employment have recorded various negative and positive employer attitudes towards the disabled. In comparison to other disability categories, the physically disabled tend to evoke more negative stereotypes, attitudes, and misconceptions in employers. Physical appearance and physical deformities continue to be a barrier to full participation in employment. Thus, additional research is needed to understand and explore how these attitudes are impacting employment experiences. The purpose of this study was to examine employers’ attitudes towards individuals with a physical disability during the hiring process.

An online survey was completed with the collaboration …

The Gendered Context Of System Experience And Its Impact On Girls In The Juvenile Justice System, Vanessa Patino Lydia

Theses and Dissertations

As girls are becoming a rising share of the juvenile justice population, responses have not focused on applying the pathways research and context for girls’ offenses. This study examined the ways girls described the context for their justice system involvement (arrest, probation, court). Using grounded theory, this research elevates the experiences of 32 participants, girls ages 13-18 who were incarcerated in commitment programs in Florida.

The findings of this grounded theory suggest that the gendered context of girls’ system involvement includes her lived experiences, coping strategies, delinquent behaviors, as well as her system experiences. Regardless of her path into the …

The Experiences Of Minority Female Leaders In Educational Leadership: A Generic Qualitative Study, Gale Denise Beasley

Theses and Dissertations

Due to the underrepresentation of female minority leaders in the field of educational leadership, the scientific literature lacked evidence in understanding the experiences of those who, despite adversity, successfully secured administrative roles. The experiences of minority women who pursued and secured principal and/or assistant principalship appointments were examined using a generic qualitative approach.

The analysis of the data presented the challenges, barriers, and constraints that minority women were confronted with during the development and establishment of their careers as educational leaders. As a result of the complex intersectionality of race and gender, these leaders found themselves as the subjects of …

Intimate Partner Violence And Revictimization: Factors Involved In Occurrence And Severity, Dunia Sarwary

Theses and Dissertations

Intimate partner violence (IPV) is a growing, complex, and silent social problem across the United States. Victims of IPV are known to be at a greater risk for revictimization. However, the relationship between revictimization and IPV has not been extensively studied. There have been few attempts to synthesize, compare, and contrast findings regarding the factors involved in IPV victimization and revictimization. This study utilized data from existing research involving 250 females seeking civil legal services from Iowa Legal Aid. The archival data explored the long-term influence of civil legal services on female victims of IPV. This study identified the relationships …

Perceived Enablers And Barriers To The Implementation Of Pbis In A Rural Elementary School, Katherine Mechele Woodall

Theses and Dissertations

Embedded within the 1990 amendment of the Individuals with Disabilities Education Act (IDEA) was a mandate stipulating all school systems incorporate some form of PBIS. Elected officials thought it was necessary to implement positive behavior intervention and supports (PBIS) into school systems behavior plans due to the ever-increasing number of students with mild to severe behavioral issues. Behavior issues include truancy, verbal and physical abuse of teachers and peers, and depression, to name a few. These behavior issues negatively impact a student’s ability to make satisfactory academic progress as well as negatively impacting the learning of their peers.

Yet, despite …

Perspectives On Postsecondary Correctional Education From The Previously Incarcerated Student: An Explanatory Sequential Mixed Methods Design Study, Ana C. Maria

Theses and Dissertations

The United States is currently housing 2,220,300 inmates. At least 90% of these inmates will eventually be released and expected to successfully reintegrate into society. While it is in the nation’s best interest that these individuals are prepared to become contributing members of society, the academic experiences of those in prison, regardless of their sentence, is important. The success of educational correction has been traditionally measured by the reduction in recidivism and by the increased likelihood of successful reintegration. However, we know little about what makes these programs successful to participants, as there is a gap in the literature regarding …

Gangs, Victim/Offender Overlap And Informal Settlements: Their Role In The Portmore Homicide Crisis, Jason Andre Mckay

Theses and Dissertations

Escalating murder rates have been a pervasive reality in Jamaican inner cities and slums since the early 1970’s; however the post independence housing development of Portmore was never envisaged to be classified as an inner city community, nor slum. This qualitative study seeks to explain the uncharacteristic cycle of murder that has afflicted this community by employing the approach of examining the victims of homicide, with an aim to determining the possible reasons that could explain the consistently high rate of murders that have been committed.

During the period January 1st, 2015 to December 31st, 2018, 381 souls were lost …

An Efficiency Tactic For Behavioral Skills Training, Brian Liu-Constant

Theses and Dissertations

This applied dissertation was designed to enhance the use of behavioral skills training to teach staff members a discrete trial training (DTT) procedure in a setting with a low trainer-to-staff ratio. Although effective, the rehearsal and feedback components of behavioral skills training can be time consuming and require more time with an expert trainer than the trainer has available.

For the behavioral skills training protocol, the researcher recorded and presented instructions and modeling on video and developed scripts that participants followed during rehearsal and feedback. Each participant was assigned to a group of three. Participants took turns in one of …