Digital Commons Network^™

Improved Interpolation In Sph In Cases Of Less Smooth Flow, Oddny Brun

Electronic Theses and Dissertations

We introduced a method presented in Information Field Theory (IFT) [Abramovich et al., 2007] to improve interpolation in Smoothed Particle Hydrodynamics (SPH) in cases of less smooth flow. The method makes use of wavelet theory combined with B-splines for interpolation. The idea is to identify any jumps a function may have and then reconstruct the smoother segments between the jumps. The results of our work demonstrated superior capability when compared to a particular challenging SPH application, to better conserve jumps and more accurately interpolate the smoother segments of the function. The results of our work also demonstrated increased computational efficiency …

Keeping Their Distance: A Comparison Of 2009 And 2013 Domestic Violence Cases In Seminole County That Utilized Gps Technology To Determine Effectiveness Of Program, Rachel Rados

Electronic Theses and Dissertations

This study examines the implementation and effectiveness of the Seminole County Sheriff's Office Global Positioning System (GPS) when ordered by the court for "no contact" in Domestic Violence cases, specifically Intimate Partner Violence. The research evaluates violations, which occurred while arrestees were assigned to GPS in 2009 and 2013; the programs first year and the most recent with complete data available. The results found limited factors that could be identified as predicting violations for those who violated the GPS, but the qualitative interviews shed much more light on the value of the program. The qualitative interviews were conducted with various …

The Russian Connection: How Russia Became A Leader In The World's Human Trafficking Market, Anthony De Mauro

Electronic Theses and Dissertations

This thesis assesses how the history of the USSR and its collapse affected the human trafficking market. By conducting a historical analysis of the Soviet Union, key aspects of Soviet society were determined that allowed for the human trafficking market to establish and operate extremely lucratively; a focus on some of the established factors of human trafficking including corruption, law enforcement, the economy, organized crime, and the dissolution of the Soviet government. While this thesis highlights the historical factors of Russian human trafficking, this thesis does not determine why human trafficking exists beyond the surface exploitation that human trafficking consists …

Optical Parity Time Metasurface Structures, Ahmed El Halawany

Electronic Theses and Dissertations

In the last few years, optics has witnessed the emergence of two fields namely metasurfaces and parity-time (PT) symmetry. Optical metasurfaces are engineered structures that provide unique responses to electromagnetic waves, absent in natural materials. Optical metasurfaces are known for their reduced dimensionality i.e. subwavelength and consequently lower losses are anticipated. The other paradigm is the PT symmetric materials, also known as photonic synthetic matter. PT symmetry has emerged from quantum mechanics when a new class of non-Hermitian Hamiltonian quantum systems was highlighted to have real eigenvalues, hence eradicating Hermiticity of the Hamiltonian as an essential condition to the existence …

Coupling Of Laser Beams For Filament Propagation, Daniel Kepler

Electronic Theses and Dissertations

Laser filamentation is a nonlinear process involving high-energy, ultrashort pulses that create narrow, non-diffracting structures over many times the Raleigh length. While many of the characteristics of filaments can vary greatly depending on the physical parameters used to create them, they share several defining features: a high intensity core, a lower intensity cladding of photons that serves as an energy reservoir to the core, and spectral broadening into a supercontinuum. While there have been many studies on the creation and control of multiple filaments from one laser pulse and a few studies on the interaction of two single filaments, many …

Young Children's Fine Motor Ipad Gestures When Performed Alone And In Dyads, Lap Nguyen

Electronic Theses and Dissertations

Since the release of the first iPad in 2010, over 200 million have been sold worldwide. In the short time since the iPad's release, the devices have become popular in classrooms. The purpose of this study was twofold: 1) to document the fine motor iPad gestures of 2 , 3-, and 4-year-old children who used iPads by themselves and in dyads and 2) to conduct international comparisons regarding such observed fine motor iPad gestures. In this study, I examined seven iPad gestures: (a) tap, (b) drag/slide, (c) free rotate, (d) drag and drop, (e) pinch, (f) spread, and (g) flick. …

Theoretical-Experimental Study Of The Two-Photon Circular Dichroism Of Helicenes And Aromatic Amino Acids In The Uv Region: From The Structure-Property Relationship To The Final Implementation, Yuly Katherine Vesga Prada

Electronic Theses and Dissertations

Two-photon circular dichroism (TPCD) has been recognized for its exceptional spectroscopic ability for the structural and conformational analysis of chiral systems due to its high sensitivity to small peptide structural distortions. In 2008, Hernandez and co-workers demonstrated TPCD experimentally by the development of the Double L-scan technique. Since then, we have been working on a systematic theoretical-experimental study of chiral molecules using TPCD. In this dissertation, I present my contribution to the continuation to the study of the structure-property relationship of TPCD in molecules with axial chirality in solution, as well as the implementation of the TPCD measurements in the …

An Investigation Of The Biomechanical Implications Of Lower Limb Fractures And Leg Length Disparity, Elizabeth Mills

Electronic Theses and Dissertations

One of the primary goals of biological anthropology is to develop an accurate understanding of human anatomy, health, disease, and injury in both modern and archaeological populations. Paleopathological analyses are a fruitful means of identifying disease and injury in skeletal assemblages, but the individual long-term biomechanical effects associated with pathological conditions have not yet been adequately explored in the literature. Leg fractures are a common pathological condition in both modern and archaeological populations, the effects of which may alter the biomechanics of gait. A growing body of clinical literature demonstrates that abnormal ambulatory function may have far-reaching effects in the …

Internet Reading And Learning In A Guided Reading Context, Jennifer Van Allen

Electronic Theses and Dissertations

Many employers are calling for high school graduates who are equipped with skills to research, manage, and process information from multiple sources and communicate effectively to others through a variety of sources. Yet, students are not being appropriately prepared with online research and comprehension skills in schools today. A major factor impacting this problem is that teachers do not possess the knowledge and skills to effectively address online research and comprehension skills in the intermediate grades. This dissertation in practice proposes a solution to this problem of practice through the design of an educative curriculum that introduces online research and …

Weighted Low-Rank Approximation Of Matrices:Some Analytical And Numerical Aspects, Aritra Dutta

Electronic Theses and Dissertations

This dissertation addresses some analytical and numerical aspects of a problem of weighted low-rank approximation of matrices. We propose and solve two different versions of weighted low-rank approximation problems. We demonstrate, in addition, how these formulations can be efficiently used to solve some classic problems in computer vision. We also present the superior performance of our algorithms over the existing state-of-the-art unweighted and weighted low-rank approximation algorithms. Classical principal component analysis (PCA) is constrained to have equal weighting on the elements of the matrix, which might lead to a degraded design in some problems. To address this fundamental flaw in …

Political, Economic, And Health Determinants Of Tuberculosis Incidence, Ashley Rutherford

Electronic Theses and Dissertations

The epidemiologic transition has shifted major causes of mortality from infectious disease to chronic disease; however, infectious diseases are again re-emerging as a major global concern (Diamond, 1997; Karlen, 1995; McNeil, 1976). This research aimed to identify potential areas of infectious disease influence that are not health-related in order to help governments and policymakers establish new policies, correct current policies, or further address these issues in order to effectively prevent and combat infectious disease. This study employed a retrospective, cross-sectional, non-experimental design via structural equation modeling (SEM) and examined tuberculosis incidence rates at the country-level. Secondary data from open-source, international …

Navigating Sociotechnical Power Structures: Dynamics Of Conflict In World Of Warcraft's Player Versus Player Events, Rachael Root

Electronic Theses and Dissertations

As a result of technological advancement and exponential increases in global access, cross-disciplinary research has recently turned to digital online video games. Most anthropological research within this area has centered around player self-identification, gender construction, and gaming communities. Yet many interactions occur at nodes of dynamic conflict where agentic players navigate intersections of power, which are unaddressed in the scholarly corpus. By utilizing ethnographic methods in World of Warcraft's player versus player events, I examine resources, relationships, and tools that underpin player actions and understandings. My findings reveal layered and dynamic patterns of sociotechnical conflict. Players' geographical location impacts access …

Study Of Polychlorinated Biphenyl Dechlorination By Zero Valent Magnesium With And Without Activated Carbon In Acidified Ethanol-Ethyl Lactate System, Fiona Zullo

Electronic Theses and Dissertations

Polychlorinated biphenyls (PCBs) are synthetic organic chemicals that ca de detected in the environment worldwide. PCBs were banned in the U.S in 1979 owing to their toxicity and persistence in the environment. Today PCBs are classified as human carcinogens and are among the top ten of the U.S Environmental Protection Agency's (EPA) most toxic chemicals. Many researchers have shown soil to be contaminated with PCBs at concentrations as high as 750 ppm. Given the toxicity of PCBs, there is an urgent need to extract and degrade such chemicals from contaminated soil in a cost effective way. Prior work revealed a …

The Community College Student's Social Construction Of Global Learning In The Florida College System, Jennifer Robertson

Electronic Theses and Dissertations

The purpose of this qualitative research study was to examine the Florida community college student's understanding of and engagement in global learning through the lens of constructionist theory. Using a grounded theory methodology, seven students in three Florida community colleges were interviewed to hear in their own words how personal and academic experiences have shaped their interest in other countries, cultures, and current international events. The goal of this study was to explore students' perspectives using the principles of social constructionism and constructivism to create a new model of understanding of global learning. The final results of the study found …

Provider Recommendation Of Hpv Vaccination: Bridging The Intention-Behavior Gap, Erica Landis

Electronic Theses and Dissertations

The present study, guided by preproduction formative research principles, employed in-depth interviews and a brief survey with pediatric healthcare providers (N=15) to investigate the consistency between behavioral intention to strongly recommend the HPV vaccine, and implementation of the actual behavior. Specifically, the Integrative Model of Behavioral Prediction (IMBP) was used as a framework to examine the impact of skills and environmental constraints on that behavioral intention-behavioral performance relationship. Results suggest providers intend to strongly recommend the HPV vaccine at a high level, but actually recommend the vaccine with a slightly lesser frequency. A thematic analysis of interview transcripts yielded a …

Building A Foundation For Goal-Attainment And Problem-Solving In Interdisciplinary Studies: Reimagining Web-Based Core Curriculum Through A Classical Lens, Said Jardaneh

Electronic Theses and Dissertations

The core curriculum of interdisciplinary studies undergraduate programs represents interdisciplinarity as a consciously applied process, whether individually or collaboratively, of drawing and integrating insights from various disciplinary perspectives toward complex problem-solving and innovation. At the front-end of these programs students are often introduced to interdisciplinarity through terminology, metaphors, concepts, and context that are intended to familiarize them with the process. This initiation usually precedes what will ultimately entail a limited number of upper-division courses within the several disciplines or areas that will encompass a unique plan of study characterized by its breadth. The philosophy underlying current pedagogy in interdisciplinary studies …

The Impact Of Elementary Mathematics Workshops On Mathematics Knowledge For Parenting (Mkp) And Beliefs About Learning Mathematics, Heidi Eisenreich

Electronic Theses and Dissertations

The purpose of this study was to investigate the extent to which parents of first, second, and third grade students who attended a two-day workshop on mathematics strategies differed on average and over time, as compared to parents who did not attend the workshops. The following areas were measured: mathematics content knowledge, beliefs about learning mathematics, ability to identify correct student responses regarding mathematics, ability to identify student errors in solving mathematics problems, methods used to solve problems, and comfort level with manipulatives.

Public Opinion And The President's Use Of Executive Orders: Aggregate- And Individual-Level Analyses Across Time, Brett Jones

Electronic Theses and Dissertations

Presidential approval ratings are a political resource that presidents and their advisors hope to influence through strategic action in order to achieve their policy goals (McAvoy 2008, 284). Through 1999, scholarly literature had largely ignored the president's use of unilateral powers. Since Moe and Howell (1999a, 1999b), however, the literature on the unilateral presidency has expanded rapidly. Despite the rapid growth of literature examining the unilateral presidency, and 45 years of presidential approval ratings literature, literature examining the link between the president's use of unilateral powers and subsequent presidential approval ratings is virtually nonexistent. Existing research has not statistically examined …

Supporting Situation Awareness Through Robot-To-Human Information Exchanges Under Conditions Of Visuospatial Perspective Taking, Elizabeth Phillips

Electronic Theses and Dissertations

The future vision of military Soldier—robot teams is one in which Soldiers and robots work together to complete separate, but interdependent tasks that advance the goals of the mission. However, in the near term, robots will be limited in their ability to successfully perform tasks without, at least, occasional assistance from their human teammates. A need exists to design, in robots, mechanisms that can support human situation awareness (SA) regarding the operations of the robot, which humans can use to provide interventions in robot tasks. The purpose of the current study was to test the effects of information exchanges provided …

From The Yellow Peril To The Model Minority: An Experimental Survey Examining Racial Attitudes Towards Asian Americans, Jenny Nguyen

Electronic Theses and Dissertations

Attitudinal research continues to show a more liberal trend in racial attitudes of Whites towards Blacks across a spectrum of issues (i.e. interracial marriage, residential integration, etc.) leading some to believe that we are moving into a post-racial society. However, a growing body of research has brought into question this utopian post-racial assertion. While Whites express support for racial equality in principle, they vehemently oppose race-targeted policies aimed to address racial inequality. This principle-policy gap has been consistently associated with persistent racial resentment; thus, contradicting the notion that of a post-racial era. Existing attitudinal research is often limited to the …

Practicing Teachers' Beliefs Regarding Racially, Culturally, Ethnically, And Linguistically Diverse (Rceld) Students In A Title I Secondary-School Environment, Lisa Sabino

Electronic Theses and Dissertations

Based on school-level data that included disparities in discipline rates, Title I status, teacher attrition, and teachers' statements, I designed a dissertation in practice to understand practicing teachers' personal and professional diversity beliefs regarding racially, culturally, ethnically, and linguistically diverse (RCELD) students in a Title I, secondary-school setting. Four hypotheses concerning type of secondary degree, years of experience, subjects taught, and racial or ethnic background were tested. Pohan and Aguilar's (2001a) Teachers' Belief Survey was administered to 59% of the GHS staff in order to measure the personal and professional beliefs of practicing teachers. I used descriptive and parametric tests …

The Impact Of Board Capital And Servant Leadership On Board Effectiveness: A Study Of Florida Community Foundations, Lauren Obyrne

Electronic Theses and Dissertations

Community foundations have considerable potential for positive social change in the communities they serve yet are understudied in nonprofit management and leadership literature. Recently, community foundations have become one of the largest avenues of organized philanthropy. The boards of community foundations frequently consist of a different composition of members than other nonprofit organizations, making a focus on individual characteristics of board members a worthwhile area of study. This exploratory study considers board capital through human capital, structural capital, and social capital and the impact this has on board effectiveness. In addition, it considers the impact of servant leadership on board …

Greed, Grief, A Gift. War-Traumatized Women And Contextualizing Expressive Arts Therapy, Sjoukje Marloes Van Houten

Lingnan Theses

This dissertation explores the universality of trauma-storing in the body and the need for contextualization when it comes to treatment. Of the two central themes addressed, the first is war-related trauma and the intersection of expressive arts therapy and South (East) Asia (Nepal and Hong Kong in particular) with its specific imagery, art, and culture, and to see how both feed into each another and can transform as a result. The question is how to locally sensitize expressive arts therapy, which has its roots in Europe and the United States, to the Hong Kong setting; more specifically, to working with …

Evaluating Floating Treatment Wetlands To Improve Nitrogen Removal In A Wet Detention Pond, Zachary Marimon

Electronic Theses and Dissertations

Wet detention ponds are used for stormwater treatment across the United States and reduce most pollutants by at least 60%, but only remove 30% of total nitrogen. Floating Treatment Wetlands (FTWs) are an emerging technology that uses aquatic plants suspended in the pelagic zone to remove nitrogen through vegetative assimilation and microbial denitrification. A before-after field experiment evaluated nitrogen removal in a an existing pond in Orlando, FL, retrofitted with BioHaven® FTWs planted with the aquatic macrophytes Juncus effusus (Soft Rush) and Pontederia cordata (Pickerelweed). Surface water samples were used to compare the nitrogen removal performance of the pond under …

Defining Community Art : Theoretical And Practical Reconstruction, Kei Shun, Samson Wong

Lingnan Theses

This research investigates the area of practice commonly known as community art, defined to be where a gathering of people participates in facilitated collaborative art making aimed to be increasing their autonomy in generating artistic and social satisfaction and enrichment. This definition is a result of integrating existing research, literature, interviews with practitioners and analyses of their work. It is an interdisciplinary research conducted through a grounded methodology where data from practitioners and literature mutually inform to yield insights into a seemingly unstructured practice.

Seven interviewees were chosen to represent a coherent and recognized body of practice. They are practicing …

Impaled On Morton's Fork: Kosovo, Crimea, And The Sui Generis Circumstance, Christopher R. Rossi

Emory International Law Review

Since NATO's intervention in Kosovo, the invocation of sui generis, or unique circumstances, has been used to justify circumventing international law on the use of force and state secession. In this Article, Professor Christopher Rossi addresses lessons learned from NATO's 1999 intervention in Kosovo and adapts those teachings to Russia's 2014 annexation of Crimea. Professor Rossi exposes internal tensions within the United Nations Charter system that threaten to further weaken the system and expose it to dangerous manipulations. These weaknesses help explain why two of the most significant doctrinal developments to emerge from the midst of Kosovo'the Responsibility to Protect …

Which Matters More? Effects Of Surface- And Deep- Level Diversity On Team Processes And Performance, Mai P. Trinh

Management Faculty Publications

This chapter reviews what we know about the effects of surface-level diversity (age, sex, and ethnicity) and deep-level diversity (personality characteristics such as conscientiousness, openness to experience, extraversion, emotional stability, and agreeableness) in organizational teams. It also outlines challenges to today’s diversity management and Human Resource (HR) practices, such as the lack of definite conclusions from research results, the mismatch between team diversity research designs and organizations’ needs, and the lack of research examining simultaneously different aspects of diversity. Drawing from analysis results of team data from 55 teams of volunteers from Shanghai, the author recommends that HR training and …

Internal Funding Newsletter, Academic Year 2015-2016, Uno Office Of Research And Creative Activity

Internal Funding Newsletters

This newsletter features: a letter from Scott Snyder, Chief Research Officer, Office of Research and Creative Activity; UNIVERSITY COMMITTEE ON RESEARCH AND CREATIVE ACTIVITY (UCRCA) Faculty Awards; FACULTY AWARD: ADROCA; 2015-2016 Internal Funding Awardees Student Awards; 2015-2016 FACULTY MENTORS; and Internal Funding Opportunities and Summary.

Intracellular Ros Mediates Gas Plasma-Facilitated Cellular Transfection In 2d And 3d Cultures, Dehui Xu, Biqing Wang, Yujing Xu, Zeyu Chen, Qinjie Cui, Yanjie Yang, Hailan Chen, Michael G. Kong

Bioelectrics Publications

This study reports the potential of cold atmospheric plasma (CAP) as a versatile tool for delivering oligonucleotides into mammalian cells. Compared to lipofection and electroporation methods, plasma transfection showed a better uptake efficiency and less cell death in the transfection of oligonucleotides. We demonstrated that the level of extracellular aqueous reactive oxygen species (ROS) produced by gas plasma is correlated with the uptake efficiency and that this is achieved through an increase of intracellular ROS levels and the resulting increase in cell membrane permeability. This finding was supported by the use of ROS scavengers, which reduced CAP-based uptake efficiency. In …

Ethical Leadership In Social Enterprises : Multilevel Investigation Of Its Influence On Team And Individual Prosocial Voice, Pok Man Tang

Lingnan Theses

This research paper seeks to draw on social learning theory (Bandura, 1977) as an overarching framework to examine how unit managers’ ethical leadership style affects the team and individual prosocial voice behaviors in the context of social enterprises in Hong Kong.

Ethical leadership has been found to be conducive to both desirable team and individual employee behaviors. However, scholarly understanding of the multi-level effects of ethical leadership and the underlying mechanisms involved is rather limited. Moreover, previous research has directed attention almost exclusively to the influence of ethical leadership in the context of commercial organizations. This narrow stance has curiously …