Digital Commons Network^™

Ultrafast Dynamics And Two-Photon Absorption Properties Of Chromophores At Interfaces, Semere Ghebru Bairu

Dissertations

Materials with large two-photon absorption (2PA) cross-sections found applications in several areas such as sensor protection, 3D micro/nano fabrication, photodynamic therapy, optical data-storage, multi-photon sensing, multi-photon microscopy and imaging. Several successful research strategies were developed in literature to achieve 2PA materials with enhanced cross-sections. However, the obtained cross-sections are far from adequate and there is a need to develop new strategies. In a parallel development, numerous research efforts were focused on studying the dynamics of interfacial charge-transfer (ICT) across chromophoresemiconductor interfaces, especially in the context of dye-sensitized solar cells. While investigating the fundamentals of ICT, it was found that these …

New Approaches On Deinking Evaluations, Roland Gong

Dissertations

Paper recycling in the U.S. is the most successful program of environmental sustainability. Approximately two thirds of consumed paper products were recycled, according to the EPA and AF&PA. However, domestic mills only applied one third of recycled fibers into new products, which is much lower than reported in China (67%). The domestic recycle mills claimed that outdated facilities, poor recycled fiber quality and high manufacturing cost are the major issues. They also said that these recycle mills have been put in a “no-win” position, which threatens the whole recycling loop eventually. A case study about Chinese recycle mills has been …

Trayvon Martin And Election 2012 Social Media Messaging: An Analysis Of Framing, Rhetoric, And Media Types In Online Messages By Civil Rights Organizations, Riva Renee Brown

Dissertations

This content analysis study explored framing, rhetoric, and media types used by the National Association for the Advancement of Colored People, National Urban League, National Action Network, and ColorOfChange.org in website and social media messages posted during the Trayvon Martin case and Election 2012. It also examined the mainstream print news media coverage these civil rights organizations generated.

On February 26, 2012, George Zimmerman, a 28 year old White and Hispanic male, fatally shot Martin, a 17 year old Black male, in Florida. After authorities did not charge Zimmerman with the teenager’s murder, these organizations drafted petitions and staged rallies …

Coveting The Backstage: A College Student Audience Study Regarding Authenticity Construction In The Reality Television Viewing Process, Lisa Marie Kruse

Dissertations

Television is a major staple of daily life for those who live in the United States and reality television has persisted as a primary genre of television programming. While it is unclear just how much reality television (RTV) viewers are watching, the genre’s dominance in primetime lineups suggests that RTV is a main type of programming viewed by television audiences.

Many audience studies have focused on the primary motivations for viewing the genre of reality television converging on four: to satisfy psychological desires (voyeurism, vengeance, and status); to connect with others; to socially learn; and the “quest for authenticity.” The …

Biophysical Understanding Of Novel Synthetic Amyloid-Β (Aβ) Prions In Alzheimer's Disease, Amit Kumar

Dissertations

Oligomers of amyloid-β (Aβ) peptide are the primary toxic agents that play a pivotal role in the pathogenesis of Alzheimer’s disease (AD). Oligomers are the intermediates formed during the Aβ aggregation process leading up to insoluble fibrils. It is important to know that oligomers can also be formed via pathways that do not lead to fibril formation. Such ‘off-pathway’ oligomers would have significantly longer half-lives than the ‘on-pathway’ ones, which may result in prolonged toxicity to neuronal cells. Furthermore, neither the mechanism of neurotoxicity nor the potential mechanisms of propagation and proliferation to neighboring cells are well understood. Moreover, recent …

Participation In Online And Face-To-Face Discussions: Perceptions Of Female Saudi Students In The United States, Manal M. Alanazy

Dissertations

No abstract provided.

Design, Development, And Psychometric Analysis Of A General, Organic, And Biological Chemistry Topic Inventory Based On The Identified Main Chemistry Topics Relevant To Nursing Clinical Practice, Corina E. Brown

Dissertations

This two-stage study focused on the undergraduate nursing course that covers topics in general, organic, and biological (GOB) chemistry. In the first stage, the central objective was to identify the main concepts of GOB chemistry relevant to the clinical practice of nursing. The collection of data was based on open-ended interviews of both nursing and chemistry teaching faculty as well as practicing nurses. From the resulting interviews, three themes emerged: topics that were Important--had a direct application in nursing clinical practice; topics that were Foundational--not directly important for nursing clinical practice but facilitated the understanding of the important topics; and …

Evaluation Of The Effect Of A Digital Mathematics Game On Academic Achievement, Christine M. Wale

Dissertations

Digital games are widely popular and interest has increased for their use in education. Digital games are thought to be powerful instructional tools because they promote active learning and feedback, provide meaningful contexts to situate knowledge, create engagement and intrinsic motivation, and have the ability individualize instruction. However, claims about the potential benefits of digital games in education have outpaced quality empirical research on their effectiveness in K-12 settings. The purpose of this study was to investigate the effectiveness of a mathematics digital game, Ko’s Journey, on seventh grade students’ mathematics achievement as defined by a researcher-constructed test aligned with …

Student Incivility: Nursing Faculty Lived Experience, Elizabeth Ann Sprunk

Dissertations

Incivility against nursing faculty by nursing students is recognized as an area of increased concern in nursing education. Academic incivility is any speech or behavior that negatively affects the well-being of students or faculty members, weakens professional relationships, and hinders the teaching–learning process. The negative experience that this may potentially have on nursing faculty is disturbing. Taking into consideration that these negative experiences may result in harm to the nursing faculty member’s health and well-being, it is important to understand the multifaceted tribulations that confront nursing faculty members who are subjected to student incivility. This investigation looked at the phenomenon …

The Interrelationships Among Attachment Style, Personality Traits, Interpersonal Competency, And Facebook Use, Michael A. Jenkins-Guarnieri

Dissertations

Online social media has become a popular way to communicate and develop interpersonal relationships. Facebook use in particular has become an important topic for researchers and clinicians, as young adults are increasingly integrating this use into their daily lives and social behavior. As empirical work on the personality traits and interpersonal competency associated with use and the potential consequences of use on social behavior is still emerging, the present study sought to investigate the interrelationships among constructs relevant to the developmental tasks associated with emerging adulthood, including adult attachment style, Five Factor Model personality traits, interpersonal competency, and Facebook use. …

The Relationship Between Socio-Economic Status And The Frequency Of School Web Page Access To Both Mobile And Non-Mobile Sites, Richmond Hughes Parker

Dissertations

Research has shown that student performance increases when parents become more involved in their children’s education, and the positive influence of parental involvement has been shown to persist across racial, gender, and socio-economic barriers (Miller, Adsit, & Miller, 2005). As a result, an increasing number of schools have sought to use the Internet as a tool to engage parents (Swann & Fenner, 2005). The purpose of this study was to examine the effectiveness of using the mobile web as a tool to help facilitate increased parental communication and involvement at the secondary level. It examined the relationship between socio-economic status, …

Performing Jonathan Newman's "Symphony No. 1: My Hands Are A City", Joseph Corey Francis

Dissertations

The purpose of this document is to provide analysis for interpretation of and rehearsal suggestions for Jonathan Newman’s Symphony No. 1: My Hands Are a City (2009). This document serves as the first significant scholarly work on the entire composition and is intended to be a resource for musicians seeking to gain information about the work. Included in the document is a biography of Jonathan Newman, as well as history concerning the commissioning of Symphony No. 1, a formal analysis of the work, and insight to conducting concerns. Information was gathered through formal interviews with Jonathan Newman, Jeff Gershman (Associate …

Role Of Msa In Immune Evasion, Persistence, And Protease Regulation In The Human Pathogenic Strains Of Staphylococcus Aureus, Maria Deepa Basco

Dissertations

Opportunistic pathogens like Staphylococcus aureus on entering the host can stay colonized at the foci of infection or evade the immune system to disseminate to other sites. In this study we investigated the regulatory influence of the modulator of sarA (msa) on immune evasion and host persistence, employing the hospital-acquired strain S. aureus UAMS-1 and community-acquired strain S. aureus USA300 LAC. In the murine sepsis model, mutation of the msa gene in LAC showed no change in dissemination of infection; however, in UAMS-1 a decrease in microbial load was observed in the lungs. Differential regulation by the msa gene was …

"Having Our Say": High Achieving African American Male College Graduates Speak About Parental Involvement And Parenting Style, Lynn Cheryl Lanier Odom

Dissertations

This study examined the patterns of parental involvement and parenting styles of a particular sample of academically successful African American males who attended and graduated from historically Black colleges or universities. More specifically, investigated was the presence of any relationships between parental involvement, parenting styles, grade point average, family structure, and parent(s) educational level. An online self­ report instrument was administered to 36 participants. Information gathered focused on how the graduates viewed their parents' child-rearing or parenting style during their educational experiences from kindergarten to the 12th grade. Three students agreed to participate in interviews designed to provide more information …

In Our Own Backyard: A Qualitative Investigation Of Marginalized And Dominant Perspectives On White Privilege In Counseling Psychology Training Programs, Steven Matthew Andrews

Dissertations

Systemic racism endures in the United States (Feagin, 2010). The race-related barriers experienced by trainees of color in counseling, clinical, and school psychology programs (Clark et al., 2012; Maton et al., 2011) reflect this reality. Focusing exclusively on the barriers confronting people of color, though, can distract from the benefits and power that Whites accrue to maintain a system of privilege and oppression. Recently, counseling psychologists have recognized the critical importance of understanding social privilege (Israel, 2012) and its unique features based on context (Ancis & Szymanski, 2001). However, the study of White privilege within counseling psychology training is an …

The Social Construction Of Deviance, Activism, And Identity In Women's Accounts Of Abortion, Mallary Allen

Dissertations

The mainstream abortion rights debate in the United States, its opposing factions popularly identified as pro-choice and pro-life, is reliant upon identifiable narratives of abortion's value to women and society and, alternately, its harms. This dissertation traces more than one hundred years of evolution of popular rhetoric surrounding the practice of elective termination of pregnancy in the U.S. and identifies the understandings of abortion and the women who have them which are most prominent in our culture today. This dissertation examines the ways in which women who have had abortions invoke the rhetoric of "sympathetic abortion" in making sense of …

Integrating Aesthetics: Transforming Continuing And Professional Education Through Africentric Practice, Auburn E. Ellis

Dissertations

K-12 practitioners in urban areas are faced with unique circumstances while serving racially marginalized students in public schools. As a response to this issue, the purpose of this study was to review and describe curricula used in three African Centered educational institutions in Chicago. African Centered schools are uniquely different, thus the need for research emerges to identify new ways to disseminate knowledge for traditional public school practitioners. Goals of the research were to analyze content and instructional strategies at African Centered educational institutions in order to design a continuing and professional education model based on their successes.

The research …

Novel Color And Local Image Descriptors For Content-Based Image Search, Sugata Banerji

Dissertations

Content-based image classification, search and retrieval is a rapidly-expanding research area. With the advent of inexpensive digital cameras, cheap data storage, fast computing speeds and ever-increasing data transfer rates, millions of images are stored and shared over the Internet every day. This necessitates the development of systems that can classify these images into various categories without human intervention and on being presented a query image, can identify its contents in order to retrieve similar images.

Towards that end, this dissertation focuses on investigating novel image descriptors based on texture, shape, color, and local information for advancing content-based image search. Specifically, …

Enabling Sustainable Power Distribution Networks By Using Smart Grid Communications, Chun-Hao Lo

Dissertations

Smart grid modernization enables integration of computing, information and communications capabilities into the legacy electric power grid system, especially the low voltage distribution networks where various consumers are located. The evolutionary paradigm has initiated worldwide deployment of an enormous number of smart meters as well as renewable energy sources at end-user levels. The future distribution networks as part of advanced metering infrastructure (AMI) will involve decentralized power control operations under associated smart grid communications networks. This dissertation addresses three potential problems anticipated in the future distribution networks of smart grid: 1) local power congestion due to power surpluses produced by …

Developing Crash Modification Factors For Operational Parameters On Urban Freeways, Eugene Vida Maina

Dissertations

Studies have shown that, roadway safety has become an intensively investigated topic with the objective of improved understanding of the factors that cause crashes to occur. However, it has been shown that as traffic volumes continue to increase across the United States, 52% of drivers feel less safe on the roads today more than they did five years ago and that the American public feels that traffic safety is a serious problem that needs both the government and media to pay more attention to this issue.

In response to these public and driver grievances, State and National transportation agencies have …

The Effect Of Nanoclays On The Properties Of Aspirin Modified Enteric Polymer Prepared By Hot-Melt Mixing, Nonjaros Chomcharn

Dissertations

Melt mixing in batch equipment or continuous extruders is a technique that recently gained the attention of the pharmaceutical industry. This dissertation investigates two controlled-release drug delivery systems. The first system, namely the enteric matrix, contains an active pharmaceutical ingredient (API) and plasticizer in an enteric polymer while in the second system a nanoclay is added to the enteric matrix, to produce a polymer nanocomposite. The first system employs hot-melt mixing to prepare a modified enteric matrix, as a delayed-release dosage form. Different concentrations of aspirin (ASP) ranging from 10 – 30% w/w are melt-mixed with a plasticized Eudragit® …

Community Composition, Demographic Change, And The Impact Of Spatial Proximity To Disadvantage On Violence And Gang Presence In New Jersey Municipalities, Brian Engelmann

Dissertations

Neighborhood composition, change, and disadvantage have been shown to influence crime and gang presence in communities. There is a dearth of research, however, that explores whether spatial proximity to disadvantaged areas affects crime and gang presence in nearby locations. Through maps and spatial analysis, this study investigates how neighborhood demographics may vary and may have changed by community type in New Jersey municipalities. Through quantitative analysis and interviews with school and law enforcement officials, the study then analyzes how such community-based phenomena, coupled with proximity to disadvantaged areas, may affect crime, violence, and gang presence in towns and schools.

Findings …

High Performance Digital Signal Processing: Theory, Design, And Applications In Finance, Mustafa Ugur Torun

Dissertations

The way scientific research and business is conducted has drastically changed over the last decade. Big data and data-intensive scientific discovery are two terms that have been coined recently. They describe the tremendous amounts of noisy data, created extremely rapidly by various sensing devices and methods that need to be explored for information inference. Researchers and practitioners who can obtain meaningful information out of big data in the shortest time gain a competitive advantage. Hence, there is more need than ever for a variety of high performance computational tools for scientific and business analytics. Interest in developing efficient data processing …

Synthesis And Characterization Of Novel Boron-Based Nanostructures And Composites, Rajen B. Patel

Dissertations

A number of nanomaterials have been synthesized by using a method that has been previously utilized to make pure boron nanostructures through the addition of different reactant gases to the process. This method was pioneered by Iqbal-Liu and will be referred to as the IL method in this dissertation. The IL method successfully created boron nanowires, boron nanoflakes, and boron nanotubes. In this dissertation, by adding methane, hydrogen sulfide, and ammonia to the process, an entire family of nanomaterials is prepared. These include nanowires, nano-heterostructures, and thin nanoplatelets of a variety of elemental compositions. These materials can be integrated with …

The Effects Of Rapid Stretch Injury On Rat Neocortical Cultures, George Constandinos Magou

Dissertations

Several key biological mechanisms of traumatic injury to axons have been elucidated using in vitro stretch injury models. These models, however, are based on the experimentation of single cultures keeping productivity slow. Indeed, low yield has hindered important and well founded investigations requiring high throughput methods such as proteomic analyses. To meet this need, a multi-well high throughput injury device is engineered to accelerate and accommodate the next generation of traumatic brain injury research. This modular system stretch-injures neuronal cultures in either a 24-well culture plate format or six individual wells simultaneously. Custom software control allows the user to accurately …

Metal Based Reactive Nanocomposites Prepared By Cryomilling, Shasha Zhang

Dissertations

Aluminum is one of the most commonly used metal fuel additives for propellants, explosives, and pyrotechnics. Recent interest has been focused on replacements for aluminum as fuel additives to achieve higher combustion temperatures and stronger pressure pulses for applications in advanced munitions systems. Two applications are addressed in this work. In the applications for explosives designed to defeat stockpiles of chemical and biological weapons, it is of interest to develop multifunctional materials combining the high energy density of metal fuels with the biocidal activity of halogens. A challenge of this effort is to design and prepare powder-like Al-I2 materials which …

Stability And Precipitation Of Diverse Nanoparticles, Chintal Desai

Dissertations

Nanotechnology is a rapidly growing industry that is exploiting the novel characteristics of materials manufactured at the nanoscale. Carbon based nanomaterials such as Carbon Nanotubes (CNTs) and Detonation Nanodiamond (DND) possess unique properties and find a wide range of industrial applications. With the advent of mass production of such materials, there is a possibility of contamination of water resources. Depending on the surface properties and structures, they might aggregate and settle down, or be dispersed and transported by the water. Therefore, there is a need to develop an understanding of the fate of such materials in aqueous media. The understanding …

Application Of Hydrogen Peroxide As Brown Tide Bloom Control Agent, Varunpreet Randhawa

Dissertations

Harmful algal blooms (HABs) are growing problem across the globe. One such HAB that’s recurring in the coastal waters of New York and New Jersey since mid-1980s, and has been reported in other countries recently, is brown tide bloom. The causal organism is a minute pel agophyte (cell diameter ~- 2µ m) Aureococcus anophagefferens. The brown tide bloom has been responsible for the severe ecological damage and economic loss (e.g. shellfishery) in the affected areas. This research focuses on finding a method to control brown tide blooms and explores the potential of natural chemical biocide hydrogen peroxide (H_{2 …}

The Investigation Of Iron(Ii) Complexes And Their Catalytic Applications, Matthew Joseph Lenze

Dissertations

Several new η5-indenyl (Ind) complexes of iron featuring phosphinooxazoline (PHOX) ligands were synthesized and spectroscopically characterized and in a few cases structurally. The complexes were synthesized using phosphinooxazoline ligands and the corresponding iron precursor [Fe(η5-Ind) I(CO)2], yielding novel piano-stool iron complexes of the general formula [Fe(η5-Ind)(CO)(PHOX)]+ in 73% to 81% isolated yields. The complexes were tested for their efficacy in a carbon-carbon bond formation known as the Mukaiyama aldol reaction. The [Fe(η5-Ind)(CO)(PHOX)]+ complexes were capable of activating the carbonyl of aromatic aldehydes towards by attack 1-(tertbutyldimethylsilyloxy)-1-methoxyethene to form the expected silyl protected β-hydroxyesters. In these complexes, the η5-η3 haptotropic shift …

The Relationship Between The Musical Preferences Of Fourth Grade Students And Their Parents, Ann Sue Iasello

Dissertations

Music is universally acknowledged as a vehicle for bonding with family and friends and as a badge of identity. Children come to develop preferences for certain genres of music. This study addressed whether or not the musical preferences of fourth grade students’ could be predicted by their parents’ musical preferences, their home environment, and the technology available to them for music listening. A 23-question online survey with open-ended and closed-ended questions was given to 43 pairs of students and parents. The survey asked about the home environment and availability of technology related to playing instruments or listening to music. It …