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2009

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Fat Rat Dreams, Jake Van Wyk Dec 2009

Fat Rat Dreams, Jake Van Wyk

Pro Rege

No abstract provided.


Arnie Koekkoek's Backyard Wonders, Elisabeth Mcpherson Eberspacher Dec 2009

Arnie Koekkoek's Backyard Wonders, Elisabeth Mcpherson Eberspacher

Pro Rege

Erratum: The photographs for both the cover and page 35 of the December 2009 Pro Rege are the work of photographer Doug Burg. These were attributed erroneously to Elisabeth McPherson Eberspacher, who wrote this essay.


Space, James C, Schaap Dec 2009

Space, James C, Schaap

Pro Rege

No abstract provided.


The Professional Portfolio: An Evidence-Based Assessment Method, Michelle Byrne, Kathryn Schroeter, Shannon Carter, Julie Mower Dec 2009

The Professional Portfolio: An Evidence-Based Assessment Method, Michelle Byrne, Kathryn Schroeter, Shannon Carter, Julie Mower

College of Nursing Faculty Research and Publications

Competency assessment is critical for a myriad of disciplines, including medicine, law, education, and nursing. Many nurse managers and educators are responsible for nursing competency assessment, and assessment results are often used for annual reviews, promotions, and satisfying accrediting agencies' requirements. Credentialing bodies continually seek methods to measure and document the continuing competence of licensees or certificants. Many methods and frameworks for continued competency assessment exist. The portfolio process is one method to validate personal and professional accomplishments in an interactive, multidimensional manner. This article illustrates how portfolios can be used to assess competence. One specialty nursing certification board's process …


Effect Of System Components On Electrical And Thermal Characteristics For Power Delivery Networks In 3d System Integration, Jianyong Xie, Daehyun Chung, Madhavan Swaminathan, Michael Mcallister, Alina Deutsch, Lijun Jiang, Barry J. Rubin Dec 2009

Effect Of System Components On Electrical And Thermal Characteristics For Power Delivery Networks In 3d System Integration, Jianyong Xie, Daehyun Chung, Madhavan Swaminathan, Michael Mcallister, Alina Deutsch, Lijun Jiang, Barry J. Rubin

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, parameterized electrical-thermal co-analysis for power delivery networks (PDN) in 3D system integration is carried out. A 3D integrated system including glass-ceramic substrate, single and stacked dies, power delivery network, through-silicon vias (TSVs), controlled collapse chip connections (C4s), underfill material, and thermal interface material (TIM) is analyzed with several variable parameters. The analysis results show that temperature effects on DC IR drop can not be neglected. The TIM thermal conductivity, C4 density, stacking order of stacked dies, and voltage source location affect the final IR drop and hot spot temperature in the system. ©2009 IEEE.


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 …


The Role Of Multiple Ccaat-Binding Factors In Candida Albicans Gene Expression, Lashall Lynn Bates Dec 2009

The Role Of Multiple Ccaat-Binding Factors In Candida Albicans Gene Expression, Lashall Lynn Bates

Graduate Theses and Dissertations

The CCAAT-binding factor is a heterooligomeric transcription factor that is evolutionarily conserved in eukaryotes. In yeast, the DNA-binding component that interacts with the CCAAT consensus sequence in promoters consists of the subunits termed Hap2p, Hap3p and Hap5p. In yeast and fungi, a fourth subunit, Hap4p, is required for regulating gene expression. The goal of this research is to understand the function of the Candida albicans CCAAT-binding factor and how it relates to virulence and pathogenicity. C. albicans is a human opportunistic pathogen responsible for a variety of mucosal and systemic infections that result in significant morbidity and mortality, particularly in …


Structured P2p Technologies For Distributed Command And Control, Daniel R. Karrels, Gilbert L. Peterson, Barry E. Mullins Dec 2009

Structured P2p Technologies For Distributed Command And Control, Daniel R. Karrels, Gilbert L. Peterson, Barry E. Mullins

Faculty Publications

The utility of Peer-to-Peer (P2P) systems extends far beyond traditional file sharing. This paper provides an overview of how P2P systems are capable of providing robust command and control for Distributed Multi-Agent Systems (DMASs). Specifically, this article presents the evolution of P2P architectures to date by discussing supporting technologies and applicability of each generation of P2P systems. It provides a detailed survey of fundamental design approaches found in modern large-scale P2P systems highlighting design considerations for building and deploying scalable P2P applications. The survey includes unstructured P2P systems, content retrieval systems, communications structured P2P systems, flat structured P2P systems and …


Test Bed Evaluation Of Future Power Distribution Systems With Renewable Resources, Bharadwaj R. Sathyanarayana, Gerald T. Heydt, Mariesa Crow, Fanjun Meng Dec 2009

Test Bed Evaluation Of Future Power Distribution Systems With Renewable Resources, Bharadwaj R. Sathyanarayana, Gerald T. Heydt, Mariesa Crow, Fanjun Meng

Electrical and Computer Engineering Faculty Research & Creative Works

Recently, the National Science Foundation (NSF) has inaugurated an Engineering Research Center dedicated to Future Renewable Electric Energy Distribution Management (FREEDM). the premise of the center is to enable the utilization of renewable resources in power distribution systems through the utilization of solid-state controllers and direct digital control. the center is at an initial stage and the focus of some effort is on the development of a test bed that will allow the evaluation of alternative system configurations, controls, solid state controllers, and operations strategies. This paper describes some of those considerations and the requirements for a test bed for …


Model-To-Hardware Correlation Of Disk Resonators For Via-Array Modeling In High-Speed Pcbs, Arun Reddy Chada, Young H. Kwark, Xiaoxiong Gu, Jun Fan Dec 2009

Model-To-Hardware Correlation Of Disk Resonators For Via-Array Modeling In High-Speed Pcbs, Arun Reddy Chada, Young H. Kwark, Xiaoxiong Gu, Jun Fan

Electrical and Computer Engineering Faculty Research & Creative Works

In high-speed printed circuit board (PCB) designs, vias play a critical role in determining signal and power integrity. This paper uses disk resonators to investigate modeling approaches for common via array structures. Boundary integral equation (BIE) and effective dielectric medium approaches are used for a perforated disk resonator with non-plated holes, using dielectric properties derived from a solid disk resonator study. Both approaches are compared and validated with measurements. ©2009 IEEE.


Predicting Noise Voltage From Trace Crossing Split Planes On Printed Circuit Boards, Weifeng Pan, Samuel Connor, Bruce Archambeault Dec 2009

Predicting Noise Voltage From Trace Crossing Split Planes On Printed Circuit Boards, Weifeng Pan, Samuel Connor, Bruce Archambeault

Electrical and Computer Engineering Faculty Research & Creative Works

Printed circuit Boards (PCBs) often have high speed data traces crossing splits in the adjacent reference planes due to space limitations and cost constraints. These split planes are usually different power islands on nearby layers. This work quantifies the effect of the split plane and the associated stitching capacitor for various stack up configurations. © 2009 IEEE.


A Frequency Domain Doubletalk Detector Based On Cross-Correlation And Extension To Multi-Channel Case, Mohammad Asif Iqbal, Steven L. Grant, Jack W. Stokes Dec 2009

A Frequency Domain Doubletalk Detector Based On Cross-Correlation And Extension To Multi-Channel Case, Mohammad Asif Iqbal, Steven L. Grant, Jack W. Stokes

Electrical and Computer Engineering Faculty Research & Creative Works

Most teleconferencing conversations are conducted in the presence of Acoustic echoes. Typically, an adaptive filter is used to cancel the echo, with a control device called the doubletalk detector which controls the adaptation. We derive a novel test statistic for the doubletalk detection based on the cross-correlation between the microphone signal and the cancellation error for the frequency domain adaptive algorithm. the main advantage of the proposed algorithm is its simplicity and computational efficiency. We compare our results with the normalized cross-correlation based doubletalk detector proposed in [2]. We also generalize the idea of the proposed doubletalk detector (single channel) …


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.


Further Development Of The Overload Risk Index, An Indicator Of System Vulnerability, John Rossmaier, Badrul Chowdhury Dec 2009

Further Development Of The Overload Risk Index, An Indicator Of System Vulnerability, John Rossmaier, Badrul Chowdhury

Electrical and Computer Engineering Faculty Research & Creative Works

This paper develops and expands on a previously devised vulnerability index in an attempt to make the index more robust in describing a power system's total vulnerability level. the previous index was derived using a dc load flow analysis using line outage distribution factors and Monte Carlo simulation that incorporated the unavailability rates of the transmission lines within the system. the updated index incorporates the following improvements: (a) tests to determine bus islanding in the system, (b) steady-state stability tests, (c) an optimal power flow to determine a more accurate steady-state point of operation, (d) ac analysis for a greater …


Layered Frequency-Domain Equalization For Single Carrier Mimo Systems With Multiple Carrier Frequency Offsets, Jian Zhang, Yahong Rosa Zheng Dec 2009

Layered Frequency-Domain Equalization For Single Carrier Mimo Systems With Multiple Carrier Frequency Offsets, Jian Zhang, Yahong Rosa Zheng

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, carrier frequency offsets (CFOs) are considered in a layered frequency-domain equalization (LFDE) architecture for a single carrier (SC) broadband wireless multiple-input multiple-output (MIMO) system. at each layer of detection, a group of best data streams are selected to be equalized and reliably detected via removing the phase and amplitude distortion caused by the multiple CFOs. the estimated phase rotations and amplitude scalars are required to be compensated to the detected data streams in order to reconstruct the interference signals which are canceled out from the received signals. Instead of direct estimation of CFOs, our algorithm is to …


A Real-Time Implementation Of A Pbil Based Stabilizing Controller For Synchronous Generator, Komla A. Folly, Ganesh K. Venayagamoorthy Dec 2009

A Real-Time Implementation Of A Pbil Based Stabilizing Controller For Synchronous Generator, Komla A. Folly, Ganesh K. Venayagamoorthy

Electrical and Computer Engineering Faculty Research & Creative Works

This paper presents the optimal tuning of power system stabilizer parameters using a newly introduced evolutionary algorithm called Population based Incremental Learning (PBIL). to robustly stabilize the system, an objective function that minimizes the infinity norm of the closed-loop system is introduced such that the parameters of a fixed structure PSS are optimally tuned, and the controller stabilizes a pre-specified set of system models. the PBIL-PSS is compared with the Conventional PSS (CPSS). the simulation results presented in this paper show that the proposed PBIL-PSS is more effective than the Conventional PSS in damping the low frequency oscillations. the performance …


Emc Guideline For Synchronous Buck Converter Design, Keong Kam, David Pommerenke, Federico Centola, Cheung Wei Lam, Robert Steinfeld Dec 2009

Emc Guideline For Synchronous Buck Converter Design, Keong Kam, David Pommerenke, Federico Centola, Cheung Wei Lam, Robert Steinfeld

Electrical and Computer Engineering Faculty Research & Creative Works

Synchronous buck converters generate broadband noise typically in 50 - 300 MHz range. in this paper, the root cause of this broadband noise and possible coupling mechanisms are analyzed. Then, a list of EMC design guideline for minimizing the broadband noise is presented. the guideline contains circuit level guideline which involves input filtering, component selection, and an effective snubber strategy using a parallel resistor and inductor. the guideline also contains layout level guideline, which involves decoupling capacitor placement, layer stack up, and minimizing exposed phase voltage area. for each suggested guideline item, an example illustrates the impact of the particular …


Analytical Formulas For The Barrel-Plate And Pad-Plate Capacitance In The Physics-Based Via Circuit Model For Signal Integrity Analysis Of Pcbs, Yaojiang Zhang, Erping Li, Zawzaw Oo, Wenzu Zhang, Enxiao Liu, Xinchang Wei, Jun Fan Dec 2009

Analytical Formulas For The Barrel-Plate And Pad-Plate Capacitance In The Physics-Based Via Circuit Model For Signal Integrity Analysis Of Pcbs, Yaojiang Zhang, Erping Li, Zawzaw Oo, Wenzu Zhang, Enxiao Liu, Xinchang Wei, Jun Fan

Electrical and Computer Engineering Faculty Research & Creative Works

The current distribution along via barrel and pad is obtained by the Green's function of a generalized coaxial cavity for a magnetic frill current. an analytical formula for both the barrel-plate and pad-plate capacitances are derived by observing the current difference along the via barrel and pad. Finite difference method has been used to validate the formula derived here. Analytical formula presented facilitates the implementation of the physics-Based via circuit model in practical via designs for printed circuit boards and packages. the impact of various via geometric parameters on the parasitic capacitances has been investigated. ©2009 IEEE.


Dental Treatment Under General Anesthesia In Healthy And Medically Compromised/Developmentally Disabled Children: A Comparative Study, Juan Pablo Loyola-Rodriguez, Veronica Zavala-Alonso, Cinthya L. Gonzalez-Alvarez, Lilia A. Juarez-Lopez, Nuria Patiño-Marin, Cesar D. Gonzalez Dec 2009

Dental Treatment Under General Anesthesia In Healthy And Medically Compromised/Developmentally Disabled Children: A Comparative Study, Juan Pablo Loyola-Rodriguez, Veronica Zavala-Alonso, Cinthya L. Gonzalez-Alvarez, Lilia A. Juarez-Lopez, Nuria Patiño-Marin, Cesar D. Gonzalez

School of Dentistry Faculty Research and Publications

Aim: To compare the type, number of procedures and working time of dental treatment provided under dental general anesthesia (DGA) in healthy and medically compromised/developmentally disabled children (MCDD children). Design: This cross-sectional prospective study involved 80 children divided into two groups of 40 children each. Group 1 consisted of healthy and Group 2 consisted of MCDD children. Results: Healthy children needed more working time than MCDD children, the means being 161±7.9 and 84±5.7 minutes, respectively (P= 0.0001). Operative dentistry and endodontic treatments showed a significant statistical difference (P= 0.0001). The means of procedures were 17±5.0 for healthy children and 11±4.8 …


A Study To Identify The Components Of Professional Learning Communities That Correlate With Teacher Efficacy, Satisfaction, And Morale, Shirley Robinette Weathers Dec 2009

A Study To Identify The Components Of Professional Learning Communities That Correlate With Teacher Efficacy, Satisfaction, And Morale, Shirley Robinette Weathers

College of Graduate Studies: Theses & Dissertations

This study was conducted to provide information concerning the attributes of professional learning communities, i.e. supportive leadership, shared values and vision, collective learning and application, supportive conditions-relational, supportive conditions-structural, and shared personal practice and their correlation with teacher efficacy, satisfaction, and morale. These six characteristics of learning communities were studied to ascertain the association of those characteristics or attributes with teacher measures. The underlying premise for the study was that teachers who feel supported in their classroom practice are more committed and effective than those who do not. When teachers have a strong sense of efficacy, they tend to adopt …


Administrator's Perceptions Of Mentoring Programs For New Assistant Principals, Takila M. Curry Dec 2009

Administrator's Perceptions Of Mentoring Programs For New Assistant Principals, Takila M. Curry

College of Graduate Studies: Theses & Dissertations

Assistant principals are now required to serve as instructional and curriculum leaders. Assistant principal mentoring has been deemed as one way to make new assistant principals ready for the challenges that they will face as they begin their careers. The purpose of the qualitative study was to understand administrators' perceptions of mentoring programs for new assistant principals. The study was carried out in elementary, middle and high schools, and a district office in a Georgia Regional Educational Service Agency (RESA) that supplied funding to implement a mentoring program that would help mold assistant principals into quality school leaders. The methodology …


Counselor Implementation Of The Asca National Model At Title I Elementary Schools, Aronica Gloster Dec 2009

Counselor Implementation Of The Asca National Model At Title I Elementary Schools, Aronica Gloster

College of Graduate Studies: Theses & Dissertations

Bridging the achievement gap between students in poverty and their more advantaged peers has been a key focus of contemporary reform efforts. Principals have been encouraged to utilize distributed leadership principles to facilitate school improvement. Research has indicated that counselors have been absent from school reform initiatives. Moreover, a dearth of literature exists regarding the activities of counselors with students who live in poverty. The American School Counselor Association (ASCA) asserted that counselors can play in important role as facilitators of school reform by utilizing the ASCA National Model as a foundation for school counseling programs. A study was conducted …


A Qualitative Study Of The Experiences With Administrative Support Of Veteran Teachers At The Secondary Level, Rachel Hendrix Nobles Dec 2009

A Qualitative Study Of The Experiences With Administrative Support Of Veteran Teachers At The Secondary Level, Rachel Hendrix Nobles

College of Graduate Studies: Theses & Dissertations

Studies have revealed that working conditions play an integral role in teachers' decisions to remain in the profession or in their current school. Additionally, studies have found that administrative support is a factor frequently cited by teachers as a component of their working conditions. Administrators are in a position allowing them to directly influence the working conditions of teachers and indirectly influence the retention of teachers. Therefore, a need existed for a deeper more complete understanding of exactly how administrator - teacher relations at the secondary level influence veteran regular education teachers' perceptions of support. In this study, the researcher …


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 …


Teacher Job Satisfaction In The Georgia Department Of Juvenile Justice School System, Rufus Douglas Williams Dec 2009

Teacher Job Satisfaction In The Georgia Department Of Juvenile Justice School System, Rufus Douglas Williams

College of Graduate Studies: Theses & Dissertations

Job satisfaction can be viewed as somewhat of a reflection of how an employee feels they are treated within the work setting and can also affect physical and emotional well-being. Concerns about supervisory relationships, expectations, working conditions, peer relationships, and communication channels are key factors in determining job satisfaction for teachers. Consequently, the level of job satisfaction a teacher feels toward his or her job can affect organizational functioning and may become a reflection of organizational functioning. The researcher administered a Likert-scale survey, The Job Satisfaction Questionnaire, developed by Spector to 241 teachers who work in correctional facilities in the …


Vaccination Nation: A Bioethical Feminist Inquiry Into The Political, Social And Ethical Controversy Surrounding The Human Papillomavirus Vaccine, Kirsten Keller Morin Dec 2009

Vaccination Nation: A Bioethical Feminist Inquiry Into The Political, Social And Ethical Controversy Surrounding The Human Papillomavirus Vaccine, Kirsten Keller Morin

College of Graduate Studies: Theses & Dissertations

This theoretical inquiry has explored the political, social, and ethical controversy surrounding the government's push to mandate the human papillomavirus (HPV) vaccine for adolescent girls. This vaccine has the potential of preventing cancer, specifically cervical cancer. There is a growing debate in this country whether this new HPV vaccine, Gardasil®, should be added to the list of school-mandated vaccines. Karen Houppert (2007) has stated that this particular "vaccine protects girls and women from cervical cancer and genital warts caused by the human papillomavirus (HPV)" (p. 17). So, what is the controversy? It all started with the fact that this vaccine …


Critical Narrative Of Multiracial Women's Personal Journey: Negotiating The Intersectionallity Of Race And Gender Issues In A Monoracial Paradigm, Geralda Silva Nelson Dec 2009

Critical Narrative Of Multiracial Women's Personal Journey: Negotiating The Intersectionallity Of Race And Gender Issues In A Monoracial Paradigm, Geralda Silva Nelson

College of Graduate Studies: Theses & Dissertations

The aim of this study was to examine how three women of color, mothers of Multiracial children, experience gender and racial identity issues in the context of United States; explore their choice of racial indicator for their children and the impact that raising multiracial children would have on their own racial identity. This study was informed by critical race feminist thought, framed by qualitative inquiry and oral history as research methodology. Throughout this study I have attempted to demonstrate that gender and race are significant factors in these three women's lived experiences. The participants' accounts revealed how different aspects of …


Intersecting Spaces: A Narrative Exploration Of Intersectionality And African American Female School Psychologists, Natasha Vannoy Dec 2009

Intersecting Spaces: A Narrative Exploration Of Intersectionality And African American Female School Psychologists, Natasha Vannoy

College of Graduate Studies: Theses & Dissertations

The roles of school psychologists practicing within the public school systems are often defined quantitatively. The focus is often how many students are assessed, what assessment measures provide the most useful snapshots of the students and how the psychometric information will be used for educational planning. Moving away from the numerical aspects of the role, this study examines the narrative voices of the few among many. Reflecting upon the shifting demographics within the field of school psychology, as well as the low number of minority school psychologists within the field, I am examining how African American women within the field …


The Persistance Of National Ideology And Myth: Attempting To Re-Define German National Identity In Post-War Europe, Danielle L. Smith Dec 2009

The Persistance Of National Ideology And Myth: Attempting To Re-Define German National Identity In Post-War Europe, Danielle L. Smith

College of Graduate Studies: Theses & Dissertations

Germany emerged from post-war Europe economically, politically, and culturally devastated. The process of rebuilding the state meant severing German society from its pre-war roots, changing international and domestic acuity of the German people as violent and racially defined. These postwar leaders, however, were unable to convincingly portray and create a modern nation to shatter the myth of German origins, and accordingly shifted the blame for Germany's situation on Nazi leaders. Absolution of the German people meant denying opportunities for popular self-critique, creating an atmosphere which unwittingly condoned the Romantic national myth. Earlier articulated by the Nazis, this original movement urged …


Pulp Polyp Associated With A Natal Tooth: Case Report, Brian D. Hodgson, Rodney Vergotine, Lance Lambert Dec 2009

Pulp Polyp Associated With A Natal Tooth: Case Report, Brian D. Hodgson, Rodney Vergotine, Lance Lambert

School of Dentistry Faculty Research and Publications

Natal teeth are an infrequent occurrence at birth. Often these teeth are extracted because they are very mobile and pose a risk of aspiration. This is a rare case in which a natal tooth was extracted by the pediatrician with his fingers. A root fragment remained and out of this developed a large pulp polyp. This relationship has not been previously reported.