The inspiration for my undergraduate body of work is derived from my fascination with Henri Matisse, Jacob Lawrence, and the Impressionists. I suddenly became captivated with the Impressionist movement and the independence of abstraction. I set into motion a series of paintings and drawings featuring random African-Americans and African society representatives in vibrant color and abstracting forms, and was specifically concerned with altering the form outside of the realistic area. While in graduate school, I began to think about how the transformation from realism to abstraction combined with the conception of mortal to the immortal. I worked through ideas to see exactly where these views began, and where they would take me as an artist. Almost immediately I experimented with random figures found specifically in the N'debele culture in South Africa. In addition, I incorporated abstraction and expressive marks within the figure and slowly introduced cut paper, flat imagery and abstraction with the realistic figure. This became very challenging but I was determined to unite these ideas successfully. More recently, my work has concentrated on the essential elements that have influenced my work as an artist, which recedes to childhood. The main elements most prevalent within the work is rhythm …

As Virtual Environments (VE) become a more commonly used method of interaction and presentation, supporting users as they navigate and interact with scenarios presented in VE will be a significant issue. A key step in understanding the needs of users in these situations will be observing them perform representative tasks in a fully developed environment. In this paper, we describe the development of a test bed for interactive narrative in a virtual environment. The test bed was specifically developed to present multiple, simultaneous sequences of events (scenarios or narratives) and to support user navigation through these scenarios. These capabilities will support the development of multiple users testing scenarios, allowing us to study and better understand the needs of users of narrative VEs.

A large number of applications like multi-player games, video conferencing, chat groups and network management are presently based on multicast communication. As the group communication model is being deployed for mainstream use, it is critical to provide security mechanisms that facilitate confidentiality, authenticity and integrity in group communications. Providing security in multicast communication requires addressing the problem of scalability in group key distribution. Scalability is a concern in group communication due to group membership dynamics. Joining and leaving of members requires the distribution of a new session key to all the existing members of the group. The two approaches to key management namely centralized and distributed approaches are reviewed. A hybrid solution is then provided, which represents a improved scalable and robust approach for a secure multicast framework. This framework then is implemented in an example application of a multicast news service.

This problem in lieu of thesis report describes a practical photolithographic method to produce micro patterns on metal-oxide-semiconductor or metal-oxide-semiconductor-metal layers for electrical measurements. The desired patterns are then transferred from the photo mask to the photoresist-coated metal film by exposure, followed by wet etching. In the procedure described in this report, it was observed that microstructures as small as 27 mm with an edge roughness of ~ 2 mm can be reproducibly generated with this process. MOS capacitors and transistors structures can be fabricated by using this technique. The method described in this report requires access to only simple facilities so that it is relatively inexpensive, and the overall time required for the whole process is short.

Policy makers and households are concerned about the impact of rising energy prices on low-income households. In a trend starting in the 1970s, low-income households are spending an increasingly disproportionate share of their income on home energy. The burden on a household imposed by energy prices can be analyzed through four factors: energy price, energy consumption, income level, and level of assistance provided to help with the costs of energy. The combination of these factors indicates that the energy burden is continuing to be disproportionately large for the nation's poor. Therefore, policy makers make further efforts to alleviate this burden by modifying energy pricing regulation.

Streaming multimedia content with UDP has become popular over distributed systems such as an Internet. This may encounter many losses due to dropped packets or late arrivals at destination since UDP can only provide best effort delivery. Even UDP doesn't have any self-recovery mechanism from congestion collapse or bursty loss to inform sender of the data to adjust future transmission rate of data like in TCP. So there is a need to incorporate various control schemes like forward error control, interleaving, and congestion control and error concealment into real-time transmission to prevent from effect of losses. Loss can be repaired by retransmission if roundtrip delay is allowed, otherwise error concealment techniques will be used based on the type and amount of loss. This paper implements the interleaving technique with packet spacing of varying interleaver block size for protecting real-time data from loss and its effect during transformation across the Internet. The packets are interleaved and maintain some time gap between two consecutive packets before being transmitted into the Internet. Thus loss of packets can be reduced from congestion and preventing loss of consecutive packets of information when a burst of several packets are lost. Several experiments have been conducted with …

This thesis covers a series of etchings created between 1998 and 2000 in completion of the requirements for graduation. The paper covers the origins and implications of the symbology within the artwork as well as the natural settings displayed. It also speaks of the mythos of art and symbols, as well as my strategy in Art making.

This study proposes a method for measuring the regional economic impact of a relatively new sport: stock car racing. Although research on the economic impact of most major league sports is abundant, little has been written on stock car racing. The purpose of this paper is to estimate, through a simulation, the regional economic impact of Texas Motor Speedway. The study finds that the Texas Motor Speedway boosted economic activity by $87,179,367 in 1998 from racetrack operations, and supported 5,300 jobs paying $22,293,135 in earnings. In addition, expenditures by speedway visitor from outside the region are estimated at $22,985,200, further increasing the total local economic activity by $49 million.

This study examines the fiscal impact the Ballpark in Arlington has on the City of Arlington. Many individuals argue that the new Ballpark in Arlington would create numerous new jobs and bring added economic development to the city, thus increasing tax revenues. An interrupted time-series approach was used to determine whether or not the new ballpark has a measurable impact on retail sales tax receipts in the City of Arlington. Based on sales tax rebate data obtains from the Texas Comptroller's Office, the study found no significant increase in sales tax receipts for Arlington during the baseball season. However, this is not to say that the Ballpark in Arlington has no impact on total local economic activity. These findings do call into question, as other studies have, the relative fiscal value of publicly-sponsored professional sports venues.

Assisted living, the fastest growing segment of the senior housing industry, allows individuals to remain as independent as they prefer and still receive necessary services. However, assisted living residences exist primarily to serve those seniors who can pay for the services from their own savings/income. We are facing a critical need for housing options for both the current senior generation and the soon-to-be-retired baby boomers. How will access to assisted living be opened to all types of payors? How will states fund the growth of assisted living? The purpose of this paper is to discuss opportunities for expansion that will make assisted living an affordable option for the low- and moderate-income elderly.

M. catarrhalis is a gram-negative diplococci frequently associated with infections of the upper respiratory tract. During the past decade, some preliminary studies have attempted to elucidate mechanisms of adherence and haemagglutination of M. catarrhalis. These studies have reported, in many cases, inconsistent results. There are two purposes of this research. First, identify mechanisms that may potentially be associated with the adherence and haemagglutination of M. catarrhalis. Second, suggest research directions that may be fruitful in clarifying these mechanisms.

"Harry Partch's Keyboard Innovation" is a computer-assisted demonstration that introduces the tuning system used primarily by the twentieth-century American composer, Harry Partch. The multimedia product was developed in Director 6.0, and it includes sound and video clips from CDs and videocassettes of Partch's works produced by Phillip Blackburn and distributed by the American Composers Forum. The content of the demonstration involves a 43-tone microtonal tuning system and its application in the music literature. This demonstration will discuss the chronological order in which these prototypes were developed and also includes samples of the tuning of notes in Partch's scale that the novice can experiment with interactively. These tones were synthesized using the Csound scores shown in Appendix B. Materials for this demonstration are based on Harry Partch's Genesis of a Music.

Movement, whether conveyed through an actual motion or a gestured implication, remains an underlying theme in my creative process that started with my earliest works. I explored different aspects of kinetic sculpture, because I am seeking new ways to create motion such as experimenting with circulating air, wind, and the use of water features. I created a series consisting of three to five kinetic sculptures which do not rely on sound or direct viewer manipulation.

The focus of my work is the incorporation of three-dimensional sculptural forms into the design of my garments while still maintaining the functional purpose of the garment. Origami paper folding is the inspiration for the sculptural forms. The major endeavor was to explore and solve the relationship between the organic human forms and the geometric forms created by the origami paper folds. This presented a challenge of exact precision. During this process, I experimented with different fabrics, which can accommodate the sharp creases and retain the shape. A variety of folding patterns were also explored. Although the design should be innovative and creative, the final garment must be wearable and comfortable.

Secure communication is the primary challenge in today's information network. In this project an efficient secret key agreement protocol is described and analyzed along with the other existing protocols. We focus primarily on Leighton and Micali's secret-key agreement without the use of public-key encryption techniques. The Leighton-Micali protocol is extremely efficient when implemented in software and has significant advantages over existing systems like Kerberos. In this method the secret keys are agreed upon using a trusted third party known as the trusted agent. The trusted agent generates the keys and writes them to a public directory before it goes offline. The communicating entities can retrieve the keys either from the online trusted agent or from the public directory service and agree upon a symmetric-key without any public-key procedures. The principal advantage of this method is that the user verifies the authenticity of the trusted agent before using the keys generated by it. The Leighton-Micali scheme is not vulnerable to the present day attacks like fabrication, modification or denial of service etc. The Leighton-Micali protocol can be employed in real-time systems like smart cards. In addition to the security properties and the simplicity of the protocol, our experiments show that in …

This project in lieu of thesis identifies successful methods of fundraising utilized by a sampling of three secondary theater arts programs from North Texas. Programs were evaluated on their ability to fund their programs and provide a quality arts education for their students. Guidelines for fundraising were developed that allow secondary theater programs to flourish without placing an additional burden on already overextended tax system. Findings were framed in a Marxist socio-economic context, seeking to find some relation between supply-side economics and the failure of certain communities to offer quality arts programs. Marxist philosophy, emphasizing the values of community and shared wealth, served to frame findings in the context of arts programs serving and enhancing their own communities.

In 1993, 38.9 million people were covered by a 401(k) plan, up from 7.1 million in 1983. The rapid growth of 401(k) and other defined contribution pension plans may alter retirement patterns of older workers. Previous research showed that the spread of defined benefit plans, with sharp age-related incentives first discouraging and later encouraging retirement, contributed to the early retirement trend of past decades. Defined contribution plans differ along several dimensions, especially in their smooth rate of pension wealth accrual. Data from the Health and Retirement Study show that retirement patterns have begun to change as defined contribution plans have spread. Estimates indicate that the financial incentives in defined benefit pensions lead people to retire almost two years earlier, compared to people with defined contribution plans.

This study describes the role of rural women and their importance in the success of microfarm projects. Microfarm cultivators can increase their income levels through trade of agricultural products. By adopting self-sustaining methods, the cultivator saves money and does not need to rely as much on goods and services from outside resources to increase food production efficiencies in microfarms. This goal can be reached in part through careful planning and construction of the microfarm facility. In addition, in developing phases of the microfarm, the external resources may possibly be a mechanism to increase expansion and knowledge. Microfarms are an important option for the third world countries and poor people worldwide.

This report analyzes the economic impacts of the Baylor Regional Medical Center at Grapevine, Texas. The economic impacts are analyzed using the IMPLAN impact modeling system developed by the Minnesota IMPLAN Group. The analysis evaluates construction activities by Baylor-Grapevine as well as procurement spending and employment. Additionally, the impact of ancillary facilities surrounding Baylor-Grapevine and the impact of patient visitor spending is also reviewed. Total recurring impacts of procurement spending at Baylor-Grapevine, employment at Baylor-Grapevine and its ancillary facilities, and visitor spending will generate over $227 million in economic activity for the Dallas/Fort Worth Metroplex. This activity will support more than 3,300 direct, indirect, and induced jobs paying over $138 million in annual earnings.

This paper deals with various topics in micro electromechanical systems (MEMS) technology beginning with microactuation, MEMS processing, and MEMS design engineering. The fabrication and testing of three separate MEMS devices are described. The first two devices are a linear stepping motor and a continuous rotary motor, respectively; and were designed for the purpose of investigating the frictional and wear properties of silicon components. The third device is a bi-stable microrelay, in which electrical current conducts through a secondary circuit, via a novel probe-interconnect mechanism. The second half focuses on engineering a carbon nanotube / SU-8 photoepoxy nanocomposite for fabricating MEMS devices. A processing method for this material as well as the initial results of characterization, are discussed.

Online airline ticket booking system is one of the essential applications of E-commerce. With the development of Internet and security technology, more and more people begin to consume online, which is more convenient and personal than traditional way. The goal of this system is to make people purchase airline tickets easily. The system is written in JAVATM. Chapter 1 will introduce some basic conception of the technologies have been used in this system. Chapter 2 shows how the database and the system are designed. Chapter 3 shows the logic of the Web site. In Chapter 4 the interface of the system will be given. Chapter 5 tells the platform of this system.

Photoresist stripping with oxygen plasma ashing destroys the functional groups in organosilicate glass films and induce moisture uptake, causing low-k dielectric degradation. In this study, hexamethyldisilazane (HMDS), triethylchlorosilane and tripropylchlorosilane are used to repair the damage to organosilicate glass by the O2 plasma ashing process. The optimization of the surface functionalization of the organosilicate glass by the silanes and the thermal stability of the functionalized surfaces are investigated. These experimental results show that HMDS is a promising technique to repair the damage to OSG during the photoresist removal processing and that the heat treatment of the functionalized surfaces causes degradation of the silanes deteriorating the hydrophobicity of the films.

The first segment introduces the background information on the use of paños as art by prisoners and how I appropriate the same materials to create and record my own cultural mythology. The Statement of Problem and Questions are about how and what cultural information is chosen in creating a visual mythology. The second segment explains the invention of the mythology by describing why certain experiences were chosen, specifically those of the graduate school experience. Also the development of self-representation through self-portraits is described. The third segment explains the symbolism used in the imagery, such as the cacti as cultural indicator and palimpsest. The fourth segment is a conclusion involving the realization that feeling caught within a hybrid culture is an important part of my identity.

It is said that there is a "productivity paradox" existing in the workplace meaning there are no net benefits from information technology spending. This paper attempts to answer the question as to whether there is a need to account for a change in the growth rate of productivity after the Internet was opened up to commercial use. Using the Chow Test for structural change I concluded that there was indeed a positive change in the growth rate of productivity beginning in the early 1990s that can be associated with increasing Internet usage.