Free weekly newspaper that includes business and classified advertising.

Free weekly newspaper that includes business and classified advertising.

Free weekly newspaper that includes business and classified advertising.

Free weekly newspaper that includes business and classified advertising.

Free weekly newspaper that includes business and classified advertising.

Free weekly newspaper that includes business and classified advertising.

Free weekly newspaper that includes business and classified advertising.

Free weekly newspaper that includes business and classified advertising.

Free weekly newspaper that includes business and classified advertising.

Free weekly newspaper that includes business and classified advertising.

Free weekly newspaper that includes business and classified advertising.

Modern studies on charge transfer reaction and conductivity measurements of DNA have shown that the electrical behavior of DNA ranges from that of an insulator to that of a wide bandgap semiconductor. Based on this property of DNA, a metal-semiconductor-metal photodetector is fabricated using a self-assembled layer of deoxyguanosine derivative (DNA base) deposited between gold electrodes. The electrodes are lithographically designed on a GaN substrate separated by a distance L (50nm < L < 100nm). This work examines the electrical and optical properties of such wide-bandgap semiconductor based biomaterial systems for their potential application as photodetectors in the UV region wherein most of the biological agents emit. The objective of this study was to develop a biomolecular electronic device and design an experimental setup for electrical and optical characterization of a novel hybrid molecular optoelectronic material system. AFM results proved the usage of Ga-Polar substrate in conjugation with DG molecules to be used as a potential electronic based sensor. A two-terminal nanoscale biomolectronic diode has been fabricated showing efficient rectification ratio. A nanoscale integrated ultraviolet photodetector (of dimensions less than 100 nm) has been fabricated with a cut-off wavelength at ~ 320 nm.

This thesis identifies and analyzes gendering in the art writing devoted to Lee Bontecou's metal and canvas sculptures made from the 1959 - 1964. Through a careful reading of reviews and articles written about Bontecou's constructions, this thesis reconstructs the context of the art world in the United States at mid-century and investigates how cultural expectations regarding gender directed the reception of Bontecou's art, beginning in 1959 and continuing through mid-1960s. Incorporating a description of the contemporaneous cultural context with description of the constructions and an analysis of examples of primary writing, the thesis chronologically follows the evolution of a tendency in art writing to associate gender-specific motivation and interpretation to one recurring feature of Bontecou's works.

Group- III nitride based semiconductors have emerged as the leading material for short wavelength optoelectronic devices. The InGaN alloy system forms a continuous and direct bandgap semiconductor spanning ultraviolet (UV) to blue/green wavelengths. An ideal and highly efficient light-emitting device can be designed by enhancing the spontaneous emission rate. This thesis deals with the design and fabrication of a visible light-emitting device using GaN/InGaN single quantum well (SQW) system with enhanced spontaneous emission. To increase the emission efficiency, layers of different metals, usually noble metals like silver, gold and aluminum are deposited on GaN/InGaN SQWs using metal evaporator. Surface characterization of metal-coated GaN/InGaN SQW samples was carried out using atomic force microscopy (AFM) and scanning electron microscopy (SEM). Photoluminescence is used as a tool for optical characterization to study the enhancement in the light emitting structures. This thesis also compares characteristics of different metals on GaN/InGaN SQW system thus allowing selection of the most appropriate material for a particular application. It was found out that photons from the light emitter couple more to the surface plasmons if the bandgap of former is close to the surface plasmon resonant energy of particular metal. Absorption of light due to gold reduces the …

Jamaica has an abundance of freshwater resources, however, a lack of infrastructure makes treated, piped water inaccessible in many areas. Through literature reviews and site visits, this thesis is an analysis of how the people and land, and money and policy, interact with one another in relation to Jamaica's freshwater resources and water infrastructure. Special attention is given to the island's type-example Cockpit karst geology; tourism, mining, and farming's relation to this karst; types of water delivery systems in rural southern Trelawny's Cockpit Country; southern Trelawny residents' perceptions of the water situation; and policy and development goals in the context of Jamaica and southern Trelawny. I hope to bring attention to the unique social, geologic, and developmental context of water in Jamaica, and more specifically to garner attention for major water infrastructure improvements in south Trelawny. A number of recommendations for improvements with policy and infrastructure are made.

This research project concerns changes in hydrology resulting from urbanization of the upper sub-basin of the White Rock Creek Watershed in Collin and Dallas Counties, Texas. The objectives of this study are: to calculate the percent watershed urbanized for the period of 1961 through 1968 and the period of 2000 through 2005; to derive a 1960s average unit hydrograph and a 2000s average unit hydrograph; and, to use the two averaged hydrographs to develop a range of hypothetical storm scenarios to evaluate how the storm response of the watershed has changed between these two periods. Results of this study show that stormflow occurs under lower intensity precipitation in the post-urbanized period and that stormflow peaks and volumes are substantially larger compared to the pre-urbanized period. It is concluded that changes in watershed surface conditions resulting from urbanization have lowered the precipitation-intensity threshold that must be surpassed before storm run-off is generated.

The purpose of this study was to examine three components of Donaldson and Graham's (1999) model of college outcomes for adults: (a) Prior Experience & Personal Biographies, (b) the Connecting Classroom, and (c) Life-World Environment, and to assess their application to traditional and nontraditional students in community colleges in both technical and nontechnical courses. The study sample was comprised of 311 community college students enrolled in technical and nontechnical courses during fall 2005. A survey instrument was developed based on the three model components through a review of the literature. Demographic data collected were utilized to classify students into a technical or nontechnical grouping as well as four classifications of traditionalism: (a) traditional, (b) minimally nontraditional, (c) moderately nontraditional, and (d) highly traditional. This study found that nontraditional students vary from traditional students in regards to the three model constructs. A post hoc descriptive discriminate analysis determined that the Life-World Environment component contributed the most to group differences with the minimally nontraditional group scoring the highest on this construct.

Parental participation in educational issues is relevant in assisting parents in understanding and becoming satisfied with their child's educational experience. Parental involvement is not only an ethical issue for teachers, but mandates have been established for special educators through various public laws. When involving parents in their children's education, it is relevant to consider various factors associated with students who are culturally and linguistically diverse. Parental satisfaction plays an important role in many cultures in obtaining parental involvement in decision-making meetings. If parents experience negative interactions, parental participation can be diminished. In other cultures, the satisfaction level raises parental trust in allowing school staff to make the appropriate choices for their children. Family values and beliefs among the various cultures should be a consideration when encouraging parents to participate in their child's educational process. Several barriers exist when involving different cultural groups; therefore, it is essential for educators to become aware of these barriers and learn strategies to overcome them. This study addresses parental understanding and satisfaction among ethnic group and throughout various disability groups by evaluating parental responses from a statewide survey and three focus groups.

This study examines the interaction between religious and national affiliations within a Dissenting denomination. Linda Colley and Jonathan Clark argue that religion provided the unifying foundation of national identity. Colley portrays a Protestant British identity defined in opposition to Catholic France. Clark favors an English identity, based upon an Anglican intellectual hegemony, against which only the heterodox could effectively offer criticism. Studying the Baptists helps test those two approaches. Although Methodists and Baptists shared evangelical concerns, the Methodists remained within the Church of England. Though Baptists often held political views similar to the Unitarians, they retained their orthodoxy. Thus, the Baptists present an opportunity to explore the position of orthodox Dissenters within the nation. The Baptists separated their religious and national identities. An individual could be both a Christian and a Briton, but one attachment did not imply the other. If the two conflicted, religion took precedent. An examination of individual ministers, specifically William Winterbotham, Robert Hall, Mark Wilks, Joseph Kinghorn, and David Kinghorn, reveals a range of Baptist views from harsh criticism of to support for the government. It also shows Baptist disagreement on whether faith should encourage political involvement and on the value of the French Revolution. Baptists …

User modeling enables in the computation of the traffic density in a cellular network, which can be used to optimize the placement of base stations and radio network controllers as well as to analyze the performance of resource management algorithms towards meeting the final goal: the calculation and maximization of network capacity and throughput for different data rate services. An analytical model is presented for approximating the user distributions in multi-cell third generation wideband code division multiple access (WCDMA) networks using 2-dimensional Gaussian distributions by determining the means and the standard deviations of the distributions for every cell. This model allows for the calculation of the inter-cell interference and the reverse-link capacity of the network. An analytical model for optimizing capacity in multi-cell WCDMA networks is presented. Capacity is optimized for different spreading factors and for perfect and imperfect power control. Numerical results show that the SIR threshold for the received signals is decreased by 0.5 to 1.5 dB due to the imperfect power control. The results also show that the determined parameters of the 2-dimensional Gaussian model match well with traditional methods for modeling user distribution. A call admission control algorithm is designed that maximizes the throughput in multi-cell …

Grounded in the social constructivism tradition, this study examined the role of communication in the glocalization and acculturation of HIV/AIDS by a section of sexually active Ugandans then living in Rakai district during the advent of the epidemic in 1982. Sixty-four women and men participated in ten focus group discussions in Rakai and Kampala districts. Five themes emerged from the data highlighting how individuals and communities made sense of the epidemic, the omnipresence of death, how they understood the HIV/AIDS campaign, and how they are currently coping with its backlash. The study concludes that HIV/AIDS is socially constructed and can be understood better from local perspectives rather than from a globalized view. The study emphasizes the integration of cultural idiosyncrasies in any health communication campaigns to realize behavioral change.

The purpose of this study was to review and explore the concept of lease purchase financing for the construction of new facilities in Texas. It sought to determine the impact of lease purchase financing and the characteristics of those districts that have utilized lease purchase financing for the purpose of new school construction. A two pronged approach was used for the study, both quantitative and qualitative. The study examined all school districts that utilized lease purchasing and examined various traits of the districts. Data was acquired from the Texas Education Agency and the Texas Bond Review Board. The qualitative portion of the study included interviews with superintendents of nine different Texas school districts that have utilized lease purchase financing. The study concluded that lease purchase districts were generally small school districts that were property poor and have high property tax rates. The study also concluded that the major reason for districts to use lease purchase financing was to avoid having to hold an election in order to gain approval for the sale of traditional general obligation bonds. Another factor identified was the availability of state funds through the state Instructional Facility Allotment. The study also concluded that while districts sought …

Previous research in our laboratory showed that when knockout mutations were created in the pyrB and pyrC genes of the pyrimidine pathway in Pseudomonas aeruginosa, not only were the resultant mutants auxotrophic for pyrimidines but they were also impaired in virulence factor production. Such a correlation had not been previously reported for P. aeruginosa, a ubiquitous opportunistic pathogen in humans. In an earlier study it was reported that mutants blocked in one of the first three enzymes of the pyrimidine pathway in the non-pathogenic strain P. putida M produced no pyoverdin pigment while mutants blocked in the later steps produced copious amounts of pigment, just like the wild type. This study probed for the same connection between pyrimidine auxotrophy and pigment production applied in P. aeruginosa. To that end a knockout mutation was created in pyrD, the fourth step in the pyrimidine pathway which encodes dihydroorotate dehydrogenase. The resulting mutant required pyrimidines for growth but produced wild type pigment levels. Since the pigment pyoverdin is a siderophore it may also be considered a virulence factor, other virulence factors were quantified in the mutant. These included casein protease, hemolysin, elastase, swimming, swarming and twitching motility, and iron binding capacity. In all …

Texas is the last remaining state to utilize the rule of capture, a doctrine based on English Common Law, as a means of regulating groundwater resources. Many of the western states originally used the rule of capture to regulate their groundwater resources, but over time, each of these states replaced the rule of capture with other groundwater laws and regulations. The Texas Water Development Board (TWDB) State Water Plan, Water for Texas-2002, warned Texans if current water usage and laws do not change, there will be an unmet need of 7.5 million acre-feet of water annually by 2050. This caused individuals in state and local government to begin asking the question, "How are we going to meet our future water needs?" In the search for a solution to the water shortage problem people have divided themselves into two groups: one wants to consider the implementation of water conservation measures to reduce per capita water use in order to meet future demands; while the other group wants to spend millions of dollars to build reservoirs and dams along with laying thousands of miles of pipeline to move water around the state. The fact that Texas has yet to come up with …