Digital Commons Network^™

Multiple Solutions Of A P(X)-Laplacian Equation Involving Critical Nonlinearities, Yuan Liang, Xianbin Wu, Qihu Zhang, Chunshan Zhao

Mathematical Sciences: Faculty Publications

In this paper, we consider the existence of multiple solutions for the following p(x)-Laplacian equations with critical Sobolev growth conditions

−div(|∇u| p(x)−2 ∇u) + |u| ^p(x)−2 u = f(x, u) in Ω,

u = 0 on ∂Ω.

We show the existence of infinitely many pairs of solutions by applying the Fountain Theorem and the Dual Fountain Theorem respectively. We also present a variant of the concentration-compactness principle, which is of independent interest.

How Social Emotional Development Skills Gained In High Quality Public School Prekindergarten Impact Kindergarten Academic Readiness, Gale A. Collett

Electronic Theses and Dissertations

Longitudinal research has demonstrated that children’s emotional and social skills are linked to their early academic achievement (Wentzel & Asher, 1995). Children who have difficulty paying attention, following directions, getting along with others, and controlling negative emotions like anger and distress do not do as well in school (Arnokl et al., 1999; McClelland et al., 2000). Academic achievement in the early years of schooling appears to be built on a firm foundation of children’s social emotional skills (Ladd, Kochenderfer, & Coleman, 1997; O’Neil et al., 1997). Higher quality prekindergarten programs are associated with the early years of schooling and more …

Co-Simulation Of Distributive And Lumped Systems Using The Discontinuous Galerkin Time Domain Finite Element Method, Ping Li, Li (Lijun) Jun Jiang

Electrical and Computer Engineering Faculty Research & Creative Works

The signal integrity and power integrity analysis of 3D integrated circuits or other EMC/EMI systems usually separate the lumped circuit modeling and the distributive system modeling. However, due to the high density of integration, it is not proper to separate them in the modeling process anymore. In this paper, a hybrid electromagnetics (EM)-circuit simulator is proposed for incorporating multiport lumped circuit networks through their admittance matrices into the discontinuous Galerkin time-domain finite element method (DGTDFEM). The admittance matrix in the Laplace-domain can be derived analytically or obtained from network parameters such as S-parameters in the frequency domain. To convert frequency …

Three Dimensional Polarization Controllable Electromagnetic Cell, Bo Zhu, Weng Cho Chew, Lijun Jiang

Electrical and Computer Engineering Faculty Research & Creative Works

We demonstrate an electromagnetic (EM) cell that can generate uniform electric field with three dimensional (3D) polarization dynamic control for the EM compatibility/interference (EMC/EMI) testing. 3D orthogonal slotline structures are designed and utilized to build the walls of the EM cell. By feeding the slotlines in phase and terminating them with matching loads, the uniform electric field similar to a standing wave is produced by two slotline modes propagating in opposite directions inside the cell. Microwave switches are integrated into the slotlines so that we can choose the operating slotline dynamically and change its orientation in a 3D manner by …

Personality And Science Training As Predictors Of Science Teaching Efficacy Beliefs, Holly Saint

Doctoral Dissertations and Projects

Various factors have been researched over the past decade related to teaching efficacy under NCLB. Bandura's Social Cognitive Theory (SCT) guided this correlational study with 13 Alabama and 10 Tennessee public school districts to examine 114 K-4 teachers' personality measured by the Big Five Inventory (BFI) personality factors; science pre-service training and school-district professional development training measured by an unpublished Science Training Survey; and science teaching efficacy beliefs measured by the Science Teacher Efficacy Belief Instrument (STEBI). The BFI's personality factors and science training were examined in combination using a hierarchical linear regression in an eight-step model while controlling for …

A Comparison Of Perceptions And Implementation Of Shared Governance Between American And Chinese Higher-Education Institutions, Dianyu Zhang

Electronic Theses and Dissertations

The purpose of this quantitative study was to assess the status of institutional stakeholders’ perceptions and application of shared governance on an American higher education campus and a counterpart in China and determine if there were differences among the groups of stakeholders both within and between the institutions. A 2-inventory researcher-developed survey of shared governance was used to measure each factor.

The data analysis found significant differences among the 4 categories of participants at the Chinese institution. For the General Acceptance dimension of the Perceptions of Shared Governance Inventory (PSGI) the Chinese staff members reported significantly higher scores than all …

Synthesis And Characterization Of A New Cyano-Substituted Tris(Pyrazolyl)Borate And Its Thallium(I) Complex, Bozumeh Som

Electronic Theses and Dissertations

A new cyanoscorpionate - tris(4-cyano-3,5-diphenylpyrazolyl)borate (Tp^Ph2,4CN) has been synthesized and characterized. The thallium complex of this ligand TlTp^Ph2,4CN has also been prepared and characterized by FT-IR, ¹H NMR, and single-crystal X-ray-diffraction. The complex TlTp^Ph2,4CN crystalized in the monoclinic space group C2/c with unit cell a = 14.6697(10) Å, b = 13.9493(10) Å, c = 19.3347(12) Å, and b= 91.761(2)°. Structural comparison of TlTp^Ph2,4CN with analogous complexes demonstrated the effects of both steric and electron-withdrawing substituents on coordination geometry and the electronic properties of the metal ion. There were short contacts between the cyano groups …

Experiences And Expectations Of An African American Male Veteran Student In Higher Education, Gladys S. Cole-Morton

Electronic Theses and Dissertations

Since the Post-9/11 GI Bill an increasing number of veterans and military students are seeking to complete degrees online and through enrollment at campuses across the nation (Brown 2011). The increased number of military students in postsecondary education settings presents challenges and opportunities for both the veteran student and institution of higher education. Military students also referred to as veteran students are choosing to pursue postsecondary education for occupational and employment opportunities, personal growth and enrichment, and to use their Post-9/11 GI education benefits. It is expected that military personnel with past military service in Afghanistan and Iraq will become …

Synthesis And Characterization Of Three New Tetrakis(N-Phenylacetamidato) Dirhodium(Ii) Nitrile Complexes, Nkongho Atem-Tambe

Electronic Theses and Dissertations

Three new tetrakis [Rh₂(PhNCOCH₃)₄·xNCR] (R = {2-CH₃}C₆H₄ (x=2), R = {3-CH₃}C₆H₄ (x=1), R = (3-CN)C₆H_4∞ (x=1)) complexes have been synthesized and characterized. These complexes were characterized by IR and ¹H NMR spectroscopies and X-ray crystallography which solved with R₁<0.05.

[Rh₂(PhNCOCH₃)₄·2NC{2-CH₃}C₆H₄] was triclinic (a=9.79Å, b=14.79Å, c=16.36Å, α=103.84⁰, β=99.17⁰, γ=99.77⁰, P-1(#2), μCN=2227.78cm^-1, Rh-Rh=2.42Å, N-C=1.13Å, 1.14Å, Rh-N=2.34Å, 2.35Å, Rh-N-C=151.6⁰, 152.5⁰, Rh-Rh-N=173.0⁰, 174.6⁰).

[Rh₂(PhNCOCH₃)_{4 …}

Synergy Of The Developed 6d Bim Framework And Conception Of The Nd Bim Framework And Nd Bim Process Ontology, Shawn Edward O'Keeffe

Dissertations

The author developed a unified nD framework and process ontology for Building Information Modeling (BIM). The research includes a framework developed for 6D BIM, nD BIM, and nD ontology that defines the domain and sub-domain constructs for future nD BIM dimensions. The nD ontology defines the relationships of kinds within any new proposed dimensional domain for BIM. The developed nD BIM framework and ontology takes into account the current 2D-5D BIM dimensions. There is a synergy between the 6D and nD framework that allows the nD framework and ontology to be utilized as a unified template for future dimensional development. …

Gene Regulatory Network Analysis And Web-Based Application Development, Yi Yang

Dissertations

Microarray data is a valuable source for gene regulatory network analysis. Using earthworm microarray data analysis as an example, this dissertation demonstrates that a bioinformatics-guided reverse engineering approach can be applied to analyze time-series data to uncover the underlying molecular mechanism. My network reconstruction results reinforce previous findings that certain neurotransmitter pathways are the target of two chemicals - carbaryl and RDX. This study also concludes that perturbations to these pathways by sublethal concentrations of these two chemicals were temporary, and earthworms were capable of fully recovering. Moreover, differential networks (DNs) analysis indicates that many pathways other than those related …

The Influence Of Classroom Management, Administrative Support, Parental Involvement, And Economic Factors On The Retention Of Novice Teachers, Katrina Moody Dwyer

Dissertations

The purpose of this study was to examine the impact of selected factors upon the intent of novice teachers to remain in the classroom. Teachers are leaving the profession in numbers that have prompted significant concern among policymakers and administrators. Many qualified college students are not considering the field of education as a potential career (Petty, 2007). Given that attrition rates among teachers are higher in their earliest years within the profession, it is essential to identify factors that contribute to the satisfaction and retention of novice teachers (Stockard & Lehman, 2004).

The primary data for this study were obtained …

Partial Least Squares Regression On Grassmannian Manifold For Emotion Recognition, M. Liu, R. Wang, Zhiwu Huang, S. Shan, X. Chen

Research Collection School Of Computing and Information Systems

In this paper, we propose a method for video-based human emotion recognition. For each video clip, all frames are represented as an image set, which can be modeled as a linear subspace to be embedded in Grassmannian manifold. After feature extraction, Class-specific One-to-Rest Partial Least Squares (PLS) is learned on video and audio data respectively to distinguish each class from the other confusing ones. Finally, an optimal fusion of classifiers learned from both modalities (video and audio) is conducted at decision level. Our method is evaluated on the Emotion Recognition In The Wild Challenge (EmotiW 2013). The experimental results on …

Adaptive Computer‐Generated Forces For Simulator‐Based Training, Expert Systems With Applications, Teck-Hou Teng, Ah-Hwee Tan, Loo-Nin Teow

Research Collection School Of Computing and Information Systems

Simulator-based training is in constant pursuit of increasing level of realism. The transition from doctrine-driven computer-generated forces (CGF) to adaptive CGF represents one such effort. The use of doctrine-driven CGF is fraught with challenges such as modeling of complex expert knowledge and adapting to the trainees’ progress in real time. Therefore, this paper reports on how the use of adaptive CGF can overcome these challenges. Using a self-organizing neural network to implement the adaptive CGF, air combat maneuvering strategies are learned incrementally and generalized in real time. The state space and action space are extracted from the same hierarchical doctrine …

Exposing And Mitigating Privacy Loss In Crowdsourced Survey Platforms, Thivya Kandappu, Vijay Sivaraman, Arik Friedman, Roksana Borell

Research Collection School Of Computing and Information Systems

Crowdsourcing platforms such as Amazon Mechanical Turk and Google Consumer Surveys can profile users based on their inputs to online surveys. In this work we first demonstrate how easily user privacy can be compromised by collating information from multiple surveys. We then propose, develop, and evaluate a crowdsourcing survey platform called Loki that allows users to control their privacy loss via atsource obfuscation.

Hibernating Process: Modeling Mobile Calls At Multiple Scales, Siyuan Liu, Lei Li, Ramayya Krishnan

Research Collection School Of Computing and Information Systems

Do mobile phone calls at larger granularities behave in the same pattern as in smaller ones? How can we forecast the distribution of a whole month's phone calls with only one day's observation? There are many models developed to interpret large scale social graphs. However, all of the existing models focus on graph at one time scale. Many dynamical behaviors were either ignored, or handled at one scale. In particular new users might join or current users quit social networks at any time. In this paper, we propose HiP, a novel model to capture longitudinal behaviors in modeling degree distribution …

Query-Document-Dependent Fusion: A Case Study Of Multimodal Music Retrieval, Zhonghua Li, Bingjun Zhang, Yi Yu, Jialie Shen, Ye Wang

Research Collection School Of Computing and Information Systems

In recent years, multimodal fusion has emerged as a promising technology for effective multimedia retrieval. Developing the optimal fusion strategy for different modality (e.g. content, metadata) has been the subject of intensive research. Given a query, existing methods derive a unified fusion strategy for all documents with the underlying assumption that the relative significance of a modality remains the same across all documents. However, this assumption is often invalid. We thus propose a general multimodal fusion framework, query-document-dependent fusion (QDDF), which derives the optimal fusion strategy for each query-document pair via intelligent content analysis of both queries and documents. By …

The Influence Of Online Word-Of-Mouth On Long Tail Formation, Bin Gu, Qian Tang, Andrew B. Whinston

Research Collection School Of Computing and Information Systems

The long tail phenomenon has been attributed to both supply side and demand side economies. While the cause on the supply side is well-known, research on the demand side has largely focused on the awareness effect of online information that helps consumers discover new and often niche products. This study expands the demand side factors by showing that online information also influences the long tail phenomenon through the informative effect, which affects consumers' evaluation of product quality. We examine the informative effect in the context of online WOM. Two sets of theories suggest opposite directions for the implication of the …

A Local Social Network Approach For Research Management, Xiaoyan Liu, Zhiling Guo, Zhenjiang Lin, Jian Ma

Research Collection School Of Computing and Information Systems

Traditional methods to evaluate research performance focus on citation count, quality and quantity of research output by individual researchers. These measures overlook the roles an individual plays in research collaboration, which is critical in an institutional research management environment due to the inherent interdependency among research entities. In order to address the organizational research management needs, we propose a research social network approach to better analyze local collaboration networks. For this purpose, we develop a new “collaboration supportiveness” measure to quantify an individual researcher's collaboration ability. Insights derived from this research are very helpful for managers to effectively allocate resources, …

Modeling Temporal Adoptions Using Dynamic Matrix Factorization, Freddy Chong-Tat Chua, Richard Jayadi Oentaryo, Ee Peng Lim

Research Collection School Of Computing and Information Systems

The problem of recommending items to users is relevant to many applications and the problem has often been solved using methods developed from Collaborative Filtering (CF). Collaborative Filtering model-based methods such as Matrix Factorization have been shown to produce good results for static rating-type data, but have not been applied to time-stamped item adoption data. In this paper, we adopted a Dynamic Matrix Factorization (DMF) technique to derive different temporal factorization models that can predict missing adoptions at different time steps in the users' adoption history. This DMF technique is an extension of the Non-negative Matrix Factorization (NMF) based on …

Topicsketch: Real-Time Bursty Topic Detection From Twitter, Wei Xie, Feida Zhu, Jing Jiang, Ee Peng Lim, Ke Wang

Research Collection School Of Computing and Information Systems

Twitter has become one of the largest platforms for users around the world to share anything happening around them with friends and beyond. A bursty topic in Twitter is one that triggers a surge of relevant tweets within a short time, which often reflects important events of mass interest. How to leverage Twitter for early detection of bursty topics has therefore become an important research problem with immense practical value. Despite the wealth of research work on topic modeling and analysis in Twitter, it remains a huge challenge to detect bursty topics in real-time. As existing methods can hardly scale …

Predictive Admission Criteria In Graduate Programs In Speech-Language Pathology, Mary Lloyd Moore

Dissertations

Speech-language pathology is a profession for which there is increasing demand as well as being one of the most desirable career paths in the United States. Graduation of qualified persons who can pass the Praxis exam is an essential outcome of all graduate programs in speech-language pathology. If predictors of competence could be identified before admission, graduate programs would be better able to select students who would maximize the expenditure of materials, energy, and expertise, thereby decreasing the potential failure for both students and universities. Therefore, this research addresses the extent to which selected variables may serve to predict success …

Survival Analysis Of Cardiovascular Diseases, Yuanxin Hu

All Theses and Dissertations (ETDs)

No abstract provided.

Merging And Creating Culturally Relevant Pedagogy In Public Schools, Sunni Ali, Ryan Murphy

Journal of Research Initiatives

During the last fifty years, numerous individuals have sought new strategies for students, such as African Americans, whom the public schools have historically underserved. Not only are some parents of these students seeking change, but also researchers, politicians, and local groups. Nevertheless, it is clear that these efforts have posed several dilemmas, which (a) limit the voice and personal choice of learners, (b) standardize the value of learning, and (c) connote a hegemonic discourse. Therefore, this Best Practices essay is based on the theory that a culturally value-driven framework (CVD) of learning will allow African Americans and other students of …

An Algorithm For Triangulating 3d Polygons, Ming Zou

All Theses and Dissertations (ETDs)

In this thesis, we present an algorithm for obtaining a triangulation of multiple, non-planar 3D polygons. The output minimizes additive weights, such as the total triangle areas or the total dihedral angles between adjacent triangles. Our algorithm generalizes a classical method for optimally triangulating a single polygon. The key novelty is a mechanism for avoiding non-manifold outputs for two and more input polygons without compromising opti- mality. For better performance on real-world data, we also propose an approximate solution by feeding the algorithm with a reduced set of triangles. In particular, we demonstrate experimentally that the triangles in the Delaunay …

Emg-Emg Coherence Analysis Of Elbow And Shoulder Muscles, Manu Stephen

All Theses and Dissertations (ETDs)

Motor coordination can be described by the activation of a few intermuscular coordination patterns, or muscle synergies. Muscle synergy can be defined as a relatively fixed pattern of activation across a set of muscles. The neural mechanisms underlying muscle synergies remain to be fairly unknown. Through a muscle synergy study [13], co-activation in muscle pairs was discovered through a non-negative matrix factorization: NMF) analysis. In order to evaluate the same muscles under the frequency domain, coherence analysis: a correlational method) was used. Additionally, a comparison can be made to determine if the resulting muscle pairs overlap with the muscle pairs …

Quantification Of Acid Loads And Delineation Of Hydrochemical Facies At A Phreatic Mine Spoil Aquifer, Mitchell A. Mcadoo

Graduate Theses, Dissertations, and Problem Reports (ETD)

Acid mine drainage geochemistry and in situ alkaline injection were investigated at the DLM coal mine, Alton West Virginia. These included spatial and temporal investigations into hydrochemical controls that were initiated with reclamation efforts. Approaches included the delineation of hydrochemical facies and analysis of time series data to develop a methodology for estimating acid loads.;Results of agglomerative hierarchical clustering were mapped to demonstrate spatial variations in response to reclamation efforts over time. Spatial patterns were determined and indicate that aquifer chemistry continued to evolve during the study period. Results confirmed that injection of alkalinity into the aquifer effected acid producing …

An Analysis On Soil Properties On Predicting Critical Hydraulic Gradients For Piping Progression In Sandy Soils, Tammy Jacobson

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Piping is a form of internal erosion in which soil particles are eroded at a seepage exit location due to the forces imposed on the particles by seeping water. Laboratory testing was performed on a variety of soils in order to assess a correlation between unit weight, angle of internal friction, grain size, gradation, and void ratio and the critical hydraulic gradient at which piping initiates and progresses. A multi-variable regression analysis was used to form equations to predict critical hydraulic gradient based upon each of these soil parameters. Variations in the accuracy of these equations are thought to be …

Skill Finder: Automated Job-Resume Matching System, Thimma Reddy Kalva

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Skill Finder is a tool which ranks the student skills from the resumes to the job requirements from Employers, Department and Faculty looking for student interns, full-time employees and also Research, Graduate and Teaching Assistants. Skill Finder hosts student resumes, Academic history and contact information. Authorized users from the Department can post jobs, view job applicants and the Skill finder automatically sorts the students resumes based on the degree of match with the job. Skill finder also sends e-mail alerts to students about the jobs posted and keeps track of employer’s history by maintaining the complete history of jobs posted …

The Modern Language Classroom: Individuality, Technology, And Context, Eric Sims

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

This portfolio is a compilation of the author’s research-supported ideas on what good language teaching looks like. The central component is the teaching philosophy, in which the author explains that respect for individuality, use of technology, and use of culture as context for learning are the three elements seen as most important for successful language learning.
The teaching philosophy is supported by artifacts about peer feedback in language learning, literacy in adult English as a Second Language learners, and autonomy in culture learning. Finally, in three annotations the author branches out from the pillars of the teaching philosophy and examines …