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2009

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On The Untraceability Of Anonymous Rfid Authentication Protocol With Constant Key-Lookup, Bing Liang, Yingjiu Li, Tieyan Li, Robert H. Deng Dec 2009

On The Untraceability Of Anonymous Rfid Authentication Protocol With Constant Key-Lookup, Bing Liang, Yingjiu Li, Tieyan Li, Robert H. Deng

Research Collection School Of Computing and Information Systems

In ASIACCS'08, Burmester, Medeiros and Motta proposed an anonymous RFID authentication protocol (BMM protocol [2]) that preserves the security and privacy properties, and achieves better scalability compared with other contemporary approaches. We analyze BMM protocol and find that some of security properties (especial untraceability) are not fulfilled as originally claimed. We consider a subtle attack, in which an adversary can manipulate the messages transmitted between a tag and a reader for several continuous protocol runs, and can successfully trace the tag after these interactions. Our attack works under a weak adversary model, in which an adversary can eavesdrop, intercept and …

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The Cartography Of National Humiliation And The Emergence Of China’S Geobody, William A. Callahan Dec 2009

The Cartography Of National Humiliation And The Emergence Of China’S Geobody, William A. Callahan

Research Collection School of Social Sciences

Maps are an important site of the production and consumption of the national image. This essay examines modern Chinese maps to show how the very material borders between foreign and domestic space are the outgrowth of the symbolic workings of historical geography and the conventions of Chinese cartography. These maps do much more than celebrate the extent of Chinese sovereignty; they also mourn the loss of national territories through a cartography of national humiliation. The goal of this essay is to shift our attention from the diplomatic issues of international borders to examine what Chinese maps of China can tell …

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Effective Principal Leadership Behaviors And Ayp Attainment: An Examination Of Distinguished And Needs Improvement Middle Schools In Georgia, Christopher M. Matthews Dec 2009

Effective Principal Leadership Behaviors And Ayp Attainment: An Examination Of Distinguished And Needs Improvement Middle Schools In Georgia, Christopher M. Matthews

College of Graduate Studies: Theses & Dissertations

The purpose of this study was to examine effective principal leadership behaviors in relation to the AYP attainment of middle schools in Georgia. The relationship was examined through analyses of teachers' ratings of principals' leadership behaviors via an e-mailed instrument. The instrument contained 32 specific leadership behaviors linked to the 11 Marzano et al.'s leadership responsibilities with the highest correlation to student achievement. Three major research questions guided the inquiry of the study. First, the study investigated the presence of the leadership behaviors in distinguished and needs improvement middle schools in Georgia. Secondly, the study investigated whether there were differences …

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The Impact Of After School Learning Centers On Low Achieving African American Elementary Students, Jorja Lockhart Scott Dec 2009

The Impact Of After School Learning Centers On Low Achieving African American Elementary Students, Jorja Lockhart Scott

College of Graduate Studies: Theses & Dissertations

The purpose of this study was to determine the impact of after school learning centers in a rural school district in South Carolina on Measures of Academic Progress achievement scores for low achieving African American elementary students. The researcher collected and analyzed Palmetto Achievement Challenge Test data administered in the Spring of 2008 from the state database and identified 419 African American low achieving fourth and fifth grade students for the study. The Educational Accountability Act of South Carolina requires that schools develop individual academic plans and provide remediation for students in grades three through eight who score Below Basic …

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Attention-Deficit/Hyperactivity Disorder And Sleep Disturbances: Consideration Of Familial Influences, Gretchen Stuckert Noble Dec 2009

Attention-Deficit/Hyperactivity Disorder And Sleep Disturbances: Consideration Of Familial Influences, Gretchen Stuckert Noble

All-Inclusive List of Electronic Theses and Dissertations

The present study examined the extent to which parenting influences problems with sleep in children referred for an evaluation of Attention-Deficit/Hyperactivity Disorder (ADHD). Data was collected from parents and/or legal guardians of sixty-three 4- to 12-year old children referred for assessment at an ADHD Evaluation Clinic located at a Midwestern university. Previous literature linking sleep problems to ADHD has typically derived from community and pediatric sleep clinic samples and has largely overlooked children with sub-clinical sleep impairments and/or those whose sleep problems stem from alternate etiologies. More than 60% of parents/caregivers in the current study reported significant child sleep difficulties. …

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Halting The Race To The Bottom: Urgent Interventions For The Improvement Of The Education Of English Language Learners In Massachusetts And Selected Districts, English Language Learners Sub-Committee, Massachusetts Board Of Elementary And Secondary Education Dec 2009

Halting The Race To The Bottom: Urgent Interventions For The Improvement Of The Education Of English Language Learners In Massachusetts And Selected Districts, English Language Learners Sub-Committee, Massachusetts Board Of Elementary And Secondary Education

Gastón Institute Publications

Massachusetts students of limited English proficiency do better academically than students of limited English proficiency in other states. But relative to other students in the state, students of limited English proficiency in Massachusetts face a disadvantage greater than that faced by their peers in most states. This suggests that while the overall higher levels of education in the state benefit LEPs in Massachusetts relative to LEPs who attend schools in states where the quality of education is lower, current policy and practice leads to significantly greater inequality in this state. As the state takes steps to improve performance for all …

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Investigation Of Velocity Profiles In Anatomically Realistic Renal Artery Flow Phantoms By Physiological Flow Experimentation, Deepa Chari Dec 2009

Investigation Of Velocity Profiles In Anatomically Realistic Renal Artery Flow Phantoms By Physiological Flow Experimentation, Deepa Chari

Masters

Renal Artery stenosis is one of the major causes of curable renovascular hypertension.An early investigation of renal artery stenosis helps in the management of renovascular hypertension by alternative, less-invasive methods such as drug treatments, thereby reducing the risk involved in the surgery. Therefore an early investigation of renal artery stenosis has been always an attractive goal for the physicians. The renal artery stenosis affects the blood velocity profile in the renal artery. These profiles can be investigated by quantitative Doppler Ultrasound measurements obtained by flow experimentations and can be used as a tool for the identification of renal artery stenosis. …

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Bias In Closed Population Capture-Recapture, Candace M. Lynn Dec 2009

Bias In Closed Population Capture-Recapture, Candace M. Lynn

College of Graduate Studies: Theses & Dissertations

Our primary question was the effect of departures from assumptions on population estimates obtained using three maximum likelihood population size estimators: M0 (all individuals have the same capture probability on all occasions), Mb (behavior is affected by prior capture) and Mt (all individuals have the same capture probability that varies by occasion). After examining the initial results and observing substantial negative bias (underestimates), we attempted to model the bias for M0 and Mb capture scenarios as these situations had consistent patterns. The Mt scenario with its erratic behaviors was not modeled. We noted that M0 and Mt performed equally well …

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Kernel-Based Interior-Point Algorithms For The Linear Complementarity Problem, Jason N. Brandies Dec 2009

Kernel-Based Interior-Point Algorithms For The Linear Complementarity Problem, Jason N. Brandies

College of Graduate Studies: Theses & Dissertations

In this thesis, we consider the Linear Complementarity Problem (LCP), which is a well-known mathematical problem with many practical applications. The objective of the LCP is to find a certain vector that will satisfy a set of linear inequalities and (non-linear) complementary equation. A kernel-based primal-dual Interior-Point Method (IPM) for solving LCP was introduced and analyzed. The class of kernel functions used in this thesis is a class of so-called eligible kernel functions that are fairly general. We have shown for a positive semi-definite matrix M, that the algorithm is globally convergent and has very good convergence properties. For some …

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Reinforcement Learning For Model Building And Variance-Penalized Control, Abhijit Gosavi Dec 2009

Reinforcement Learning For Model Building And Variance-Penalized Control, Abhijit Gosavi

Engineering Management and Systems Engineering Faculty Research & Creative Works

Reinforcement learning (RL) is a simulation-Based technique to solve Markov decision problems or processes (MDPs). It is especially useful if the transition probabilities in the MDP are hard to find or if the number of states in the problem is too large. in this paper, we present a new model-Based RL algorithm that builds the transition probability model without the generation of the transition probabilities; the literature on model-Based RL attempts to compute the transition probabilities. We also present a variance-penalized Bellman equation and an RL algorithm that uses it to solve a variance-penalized MDP. We conclude with some numerical …

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Closed-Form Expression Of Self/Mutual Power-Bus Impedances In A Finite Circular Plate Pair, Yao Jiang Zhang, Er Ping Li, Jun Fan Dec 2009

Closed-Form Expression Of Self/Mutual Power-Bus Impedances In A Finite Circular Plate Pair, Yao Jiang Zhang, Er Ping Li, Jun Fan

Electrical and Computer Engineering Faculty Research & Creative Works

The drawbacks of conventional power-bus impedance, defined as an average Green's function integration over port areas, are discussed. a new definition is proposed in terms of cylindrical waves. the equivalence of the new definition and the conventional one is proved in the case of electrically small ports. Addition theorems of cylindrical waves are used to derive an analytical expression of power-bus impedance between ports in a circular plate pair with perfectly electric/magnetic conductor (PEC/PMC) boundaries as well as non-reflective perfectly matched layer (PML) for infinite plate pair. Numerical method has been used to validate the analytical expression derived.

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Bio-Inspired Node Localization In Wireless Sensor Networks, Raghavendra V. Kulkarni, Ganesh K. Venayagamoorthy, Maggie X. Cheng Dec 2009

Bio-Inspired Node Localization In Wireless Sensor Networks, Raghavendra V. Kulkarni, Ganesh K. Venayagamoorthy, Maggie X. Cheng

Electrical and Computer Engineering Faculty Research & Creative Works

Many applications of wireless sensor networks (WSNs) require location information of the randomly deployed nodes. a common solution to the localization problem is to deploy a few special beacon nodes having location awareness, which help the ordinary nodes to localize. in this approach, non-beacon nodes estimate their locations using noisy distance measurements from three or more non-collinear beacons they can receive signals from. in this paper, the ranging-Based localization task is formulated as a multidimensional optimization problem, and addressed using bio-inspired algorithms, exploiting their quick convergence to quality solutions. an investigation on distributed iterative localization is presented in this paper. …

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Equivalent Mixed-Mode Characteristic Impedances For Differential Signal Vias, Siming Pan, Jun Fan Dec 2009

Equivalent Mixed-Mode Characteristic Impedances For Differential Signal Vias, Siming Pan, Jun Fan

Electrical and Computer Engineering Faculty Research & Creative Works

Differential signal via structures in multi-layer printed circuit boards (PCBs) and packages are studied using an equivalent coupled multi-conductor transmission-line model. Thus, easy-to-understand transmission-line concepts, such as mixed-mode characteristic impedances and propagation constants, can be used to characterize the performance of differential signal via structures in a signal path. the closed-form expressions of per-unit-length parameters in the equivalent coupled multi-conductor transmission-line model are derived based on a physics-Based via circuit model with parallel-plane impedances and via-plate capacitances. Mode conversions are discussed for different via structures. Effects of geometrical parameters on equivalent differential via impedances are studied in the paper as …

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Barriers To High School Student Academic Success, Judy S. Sapp Dec 2009

Barriers To High School Student Academic Success, Judy S. Sapp

College of Graduate Studies: Theses & Dissertations

Since the passage of the federal legislation known as No Child Left Behind, school districts are under increasing pressure to decrease high school dropout rates and to increase high school graduation rates. There is a critical need for schools to develop and implement programs designed to maximize academic success for all high school students. The purpose of this present research was to investigate the perceptions of high school teachers and high school students about barriers to high school student academic success. For purposes of this study, high school academic success is defined as the completion of all high school diploma …

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(E,2e) Study Of Two-Center Interference Effects In The Ionization Of N₂, Leigh R. Hargreaves, Christopher J. Colyer, Mark A. Stevenson, B. Lohmann, Ola A. Al-Hagan, Don H. Madison, Chuangang Ning Dec 2009

(E,2e) Study Of Two-Center Interference Effects In The Ionization Of N₂, Leigh R. Hargreaves, Christopher J. Colyer, Mark A. Stevenson, B. Lohmann, Ola A. Al-Hagan, Don H. Madison, Chuangang Ning

Physics Faculty Research & Creative Works

A number of previous studies have suggested the possibility of two-center interference effects in the single ionization of diatomic molecules such as H2 and N2. While interference effects have been successfully observed in the ionization of H2, to date evidence for interference in N2 ionization has yet to be conclusively demonstrated. This study presents triply differential cross sections for electron impact ionization of N2, measured using the (e,2e) technique. The data are probed for signatures of two-center interference effects. Evidence for interference manifesting in the cross sections is observed.

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Health Impacts Of Traffic Related Air Pollution, Amit U. Raysoni, Wen-Wahi Li Dec 2009

Health Impacts Of Traffic Related Air Pollution, Amit U. Raysoni, Wen-Wahi Li

School of Earth, Environmental, & Marine Sciences Faculty Publications

Ambient air pollution can be a serious cause of concern for any community. Anthropogenic ambient air pollutants can emanate from industries, traffic, geological sources and domestic heating and cooking. However, studies have shown that traffic related air pollution can have far more detrimental health effects than non-combustion sources. These adverse health effects are most profound in sensitive populations like the elderly and young children. The World Health Organization (WHO) attributes more than 300 million deaths every year to ambient air pollution. The WHO’s Air Quality Guidelines (AQG) and the United States Environment Protection Agency’s (USEPA) National Ambient Air Quality Standards …

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Event Coverage In Sparse Mobile Sensor Networks, Mark Snyder, Sriram Chellappan Dec 2009

Event Coverage In Sparse Mobile Sensor Networks, Mark Snyder, Sriram Chellappan

Computer Science Faculty Research & Creative Works

Autonomous mobile sensors are employed with ever-increasing frequency, in applications ranging from search and rescue, detection of forest fires, and battlefield surveillance. in this paper, we consider a representative surveillance problem wherein a sparse number of mobile sensors are expected to cover events of interest in a deployment field. Each event appears for a certain time and then disappears. Furthermore, the location of each event and its duration is unknown. in this paper, we design a sensor movement strategy based on efficient traversal in the network to fulfill two objectives: maximizing event detection and minimizing detection delay. Analysis and simulations …

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A System For Detecting Xml Similarity In Content And Structure Using Relational Database, Waraporn Viyanon, Sanjay Kumar Madria Dec 2009

A System For Detecting Xml Similarity In Content And Structure Using Relational Database, Waraporn Viyanon, Sanjay Kumar Madria

Computer Science Faculty Research & Creative Works

In this paper, we describe a system incorporating an improved technique that detects the similarity of two XML documents based on content and structure similarity using keys. the technique consists of three major components: A subtree generator and validator, a key generator, and similarity components that compare content and structure of the XML documents. First, an XML document is stored in a relational database and extracted into small subtrees using leaf-node parents. the leaf-node parents are considered as a root of a subtree which is then recursively traversed bottom-up for matching. Second, a possible key(s) is identified in order to …

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Directed Coverage In Wireless Sensor Networks: Concept And Quality, Xiaole Bai, Lei Ding, Jin Teng, Sriram Chellappan, Changqing Xu, Dong Xuan Dec 2009

Directed Coverage In Wireless Sensor Networks: Concept And Quality, Xiaole Bai, Lei Ding, Jin Teng, Sriram Chellappan, Changqing Xu, Dong Xuan

Computer Science Faculty Research & Creative Works

In this paper, we introduce a new type of coverage for wireless sensor networks, called Directed Coverage (D-Coverage). Basically, D-Coverage is the coverage provided by a sensor network monitoring an area between two boundaries, through which the intruder attempts to penetrates the area. We also study how to measure the quality of D-Coverage. Our first evaluation approach is a projection-Based simple approach, while our second approach is a more comprehensive Markov chain-based approach. Our evaluation approaches can accurately evaluate the quality and provide good guidelines for sensor network deployment and run-time repair. ©2009 IEEE.

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Influence Of Technology On Adolescent Development And Spiritual Formation, Kevin Daniel Monahan Dec 2009

Influence Of Technology On Adolescent Development And Spiritual Formation, Kevin Daniel Monahan

Doctoral Dissertations and Projects

Adolescence is the time when a person develops perceptions about religious thoughts and with proper guidance, can be a stronger follower of Christ. The purpose of this project is to analyze the effects of technology on young people and to show a direct correlation between the influence of technology and spiritual growth of adolescents. I will argue that both the positive and negative influences of technology have made our students more informative yet less personally intimate. This shift of personal interaction presents a challenge to the cognitive development and spiritual formation of all students.

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Transactional Algorithm For Subtracting Fractions: Go Shopping, James Seishin Pinckard Dec 2009

Transactional Algorithm For Subtracting Fractions: Go Shopping, James Seishin Pinckard

Doctoral Dissertations and Projects

The purpose of this quasi-experimental research study was to examine the effects of an alternative or transactional algorithm for subtracting mixed numbers within the middle school setting. Initial data were gathered from the student achievement of four mathematics teachers at three different school sites. The results indicated students who utilized the transactional algorithm demonstrated greater comprehension, retention, and computational accuracy than those who utilized traditional algorithms. The difference between the scores of the two groups was statistically significant. The follow-up investigation employed a quasi-experimental nonrandomized Test 1-Test2 control research with two teachers. An analysis of variance (ANOVA) was used to …

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Stress And Anxiety Among Korean International Students At Liberty University Analyzed With The State-Trait Anxiety Inventory (Form Y), Jae Duk Kim Dec 2009

Stress And Anxiety Among Korean International Students At Liberty University Analyzed With The State-Trait Anxiety Inventory (Form Y), Jae Duk Kim

Doctoral Dissertations and Projects

International students face unique issues, including anxiety while adjusting to cultural unfamiliar and academic challenges. This research study examined characteristics and anxiety levels as Korean international seminary students (n = 61) living in the U.S. and compared them with Korean domestic seminary students (n = 120) living in Korea using the State-Trait Anxiety Inventory (Form Y) (Spielberger, 1983). The results: the Pearson correlation indicated that the state anxiety scores and trait anxiety scores were significantly related. Korean international seminary students had statistically significantly higher mean scores on state and trait anxiety than Korean domestic seminary students. The 2×2×2 ANOVA revealed …

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The Effects Of Georgia's Choice Curricular Reform Model On Third Grade Science Scores On The Georgia Criterion Referenced Competency Test, Art W. Phemister Dec 2009

The Effects Of Georgia's Choice Curricular Reform Model On Third Grade Science Scores On The Georgia Criterion Referenced Competency Test, Art W. Phemister

Doctoral Dissertations and Projects

The purpose of this study was to evaluate the effectiveness of the Georgia's Choice reading curriculum on third grade science scores on the Georgia Criterion Referenced Competency Test from 2002 to 2008. In assessing the effectiveness of the Georgia's Choice curriculum model this causal comparative study examined the 105 elementary schools that implemented Georgia's Choice and 105 randomly selected elementary schools that did not elect to use Georgia's Choice. The Georgia's Choice reading program used intensified instruction in an effort to increase reading levels for all students. The study used a non-equivalent control group with a pretest and posttest design …

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Music Instruction And The Reading Achievement Of Middle School Students, Juanita Huber Dec 2009

Music Instruction And The Reading Achievement Of Middle School Students, Juanita Huber

Doctoral Dissertations and Projects

Comparative analysis examined responses on a descriptive questionnaire from 267 students in grades 6, 7, and 8. The study compared duration of and participation in music instruction, types of musical instruments learned, and experience in musical ensembles to scores from the state English language arts assessment. Analysis of results included descriptive statistics and the use of the Pearson r correlation coefficient. Overall findings yielded a significant positive relationship between the study of music and reading development in middle school students. A comparison of test scores to music instruction lasting longer than two years, performance on a brass or woodwind instrument, …

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On The Dual Basis For Solving Electromagnetic Surface Integral Equations, Mei Song Tong, Weng Cho Chew, Barry J. Rubin, Jason D. Morsey, Lijun Jiang Dec 2009

On The Dual Basis For Solving Electromagnetic Surface Integral Equations, Mei Song Tong, Weng Cho Chew, Barry J. Rubin, Jason D. Morsey, Lijun Jiang

Electrical and Computer Engineering Faculty Research & Creative Works

A powerful technique for solving electromagnetic (EM) surface integral equations (SIEs) for inhomogenous objects by the method of moments (MoM) involves the well-known RaoWiltonGlisson (RWG) basis function to represent the electric current and, for field orthogonality and numerical stability reasons, a variation of the RWG basis known as the ňx RWG basis (where ň is a unit normal vector at the object surface) to represent the magnetic current. Though this combination provides a numerically efficient and effective solution that has been demonstrated on a variety of structures, one cannot feel entirely comfortable because of the presence of fictitious magnetic current …

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Empirical Likelihood In Missing Data Problems, Jing Qin, Biao Zhang, Denis H. Y. Leung Dec 2009

Empirical Likelihood In Missing Data Problems, Jing Qin, Biao Zhang, Denis H. Y. Leung

Research Collection School Of Economics

Missing data is a ubiquitous problem in medical and social sciences. It is well known that inferences based only on the complete data may not only lose efficiency, but may also lead to biased results if the data is not missing completely at random (MCAR). The inverse-probability weighting method proposed by Horvitz and Thompson (1952) is a popular alternative when the data is not MCAR. The Horvitz–Thompson method, however, is sensitive to the inverse weights and may suffer from loss of efficiency. In this paper, we propose a unified empirical likelihood approach to missing data problems and explore the use …

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Coherent Phrase Model For Efficient Image Near-Duplicate Retrieval, Yiqun Hu, Xiangang Cheng, Liang-Tien Chia, Xing Xie, Deepu Rajan, Ah-Hwee Tan Dec 2009

Coherent Phrase Model For Efficient Image Near-Duplicate Retrieval, Yiqun Hu, Xiangang Cheng, Liang-Tien Chia, Xing Xie, Deepu Rajan, Ah-Hwee Tan

Research Collection School Of Computing and Information Systems

This paper presents an efficient and effective solution for retrieving image near-duplicate (IND) from image database. We introduce the coherent phrase model which incorporates the coherency of local regions to reduce the quantization error of the bag-of-words (BoW) model. In this model, local regions are characterized by visual phrase of multiple descriptors instead of visual word of single descriptor. We propose two types of visual phrase to encode the coherency in feature and spatial domain, respectively. The proposed model reduces the number of false matches by using this coherency and generates sparse representations of images. Compared to other method, the …

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To Trust Or Not To Trust? Predicting Online Trusts Using Trust Antecedent Framework, Viet-An Nguyen, Ee Peng Lim, Jing Jiang, Aixin Sun Dec 2009

To Trust Or Not To Trust? Predicting Online Trusts Using Trust Antecedent Framework, Viet-An Nguyen, Ee Peng Lim, Jing Jiang, Aixin Sun

Research Collection School Of Computing and Information Systems

This paper analyzes the trustor and trustee factors that lead to inter-personal trust using a well studied Trust Antecedent framework in management science. To apply these factors to trust ranking problem in online rating systems, we derive features that correspond to each factor and develop different trust ranking models. The advantage of this approach is that features relevant to trust can be systematically derived so as to achieve good prediction accuracy. Through a series of experiments on real data from Epinions, we show that even a simple model using the derived features yields good accuracy and outperforms MoleTrust, a trust …

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Insights Into Malware Detection And Prevention On Mobile Phones, Qiang Yan, Yingjiu Li, Tieyan Li, Robert H. Deng Dec 2009

Insights Into Malware Detection And Prevention On Mobile Phones, Qiang Yan, Yingjiu Li, Tieyan Li, Robert H. Deng

Research Collection School Of Computing and Information Systems

The malware threat for mobile phones is expected to increase with the functionality enhancement of mobile phones. This threat is exacerbated with the surge in population of smart phones instilled with stable Internet access which provides attractive targets for malware developers. Prior research on malware protection has focused on avoiding the negative impact of the functionality limitations of mobile phones to keep the performance cost within the limitations of mobile phones. Being different, this paper investigates the positive impact of these limitations on suppressing the development of mobile malware. We study the state-of-the-art mobile malware, as well as the progress …

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A New Approach For Anonymous Password Authentication, Yanjiang Yang, Jianying Zhou, Jian Weng, Feng Bao Dec 2009

A New Approach For Anonymous Password Authentication, Yanjiang Yang, Jianying Zhou, Jian Weng, Feng Bao

Research Collection School Of Computing and Information Systems

Anonymous password authentication reinforces password authentication with the protection of user privacy. Considering the increasing concern of individual privacy nowadays, anonymous password authentication represents a promising privacy-preserving authentication primitive. However, anonymous password authentication in the standard setting has several inherent weaknesses, making its practicality questionable. In this paper, we propose a new and efficient approach for anonymous password authentication. Our approach assumes a different setting where users do not register their passwords to the server; rather, they use passwords to protect their authentication credentials. We present a concrete scheme, and get over a number of challenges in securing password-protected credentials …

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