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Description:
This study uses teacher employment data provided by the State Board for Educator Certification to examine the similarities and differences between initial employment and attrition rates of teachers trained in three prevalent types of Texas teacher preparation programs; alternative certification programs (ACP), the centers for professional development of teachers (CPDT), and traditional certification programs (TCP). The population for the study includes all Texas teachers who completed training …
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Description:
Worms have caused significant destruction over the last few years. Network security elements such as firewalls, IDS, etc have been ineffective against worms. Some worms are so fast that a manual intervention is not possible. This brings in the need for a stronger security architecture which can automatically react to stop worm propagation. The method has to be signature independent so that it can stop new worms. In this thesis, an automated defense system (ADS) is developed to automate defense…
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Description:
Networks of ground-based and satellite borne instruments to measure ultraviolet (UV) sunlight and total column ozone have greatly contributed to an understanding of increased amounts of UV reaching the surface of the Earth caused by stratospheric ozone depletion. Increased UV radiation has important potential effects on human health, and agricultural and ecological systems. Observations from these networks make it possible to monitor total ozone decreases and to predict ozone recovery trends …
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Description:
In software testing, it is often desirable to find test inputs that exercise specific program features. Finding these inputs manually, is extremely time consuming, especially, when the software being tested is complex. Therefore, there have been numerous attempts automate this process. Random test data generation consists of generating test inputs at random, in the hope that they will exercise the desired software features. Often the desired inputs must satisfy complex constraints, and this mak…
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Description:
Baeyer-Villiger oxidation of 1,9-dibromopentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione (1,9-dibromo-PCU-8,11-dione) was performed by using an excess amount of m-chloroperbenzoic acid (3 equivalents) and resulted in the formation of the corresponding monolactone. The reaction would not proceed to the dilactone stage. The structure of the reaction product was established unequivocally via single crystal X-ray diffraction. Baeyer-Villiger oxidation of 1,9-dibromo-PCU-8,11-dione using ceric a…
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Description:
In a 2004 study, Harvey, Lin and Roper argue that debt makers with a commitment to monitoring can create value for outside shareholders whenever information asymmetry and agency costs are pronounced. I investigate Harvey, Lin and Roper's claim for bank loans by empirically testing the effect of information asymmetry and direct agency costs on the abnormal returns of the borrowers' stock around the announcement of bank loans. I divide my study into two main sections. The first section tests whet…
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Description:
The barrier properties and long term strength retention of polymers are of significant importance in a number of applications. Enhanced lifetime food packaging, substrates for OLED based flexible displays and long duration scientific balloons are among them. Higher material requirements in these applications drive the need for an accurate measurement system. Therefore, a new system was engineered with enhanced sensitivity and accuracy. Permeability of polymers is affected by permeant solubility…
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Description:
This study examines barriers limiting access to hospice care for elderly African Americans. Ethnic background plays a critical role in the development of attitudes, beliefs and expectations related to death and issues surrounding hospice care. The purpose of this study was to identify barriers that may limit access to hospice care for African Americans. A questionnaire was administered to 56 elderly African Americans in three religious settings and an African American senior citizens center. Th…
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Description:
This creative thesis is comprised of five original short stories and a critical preface. The preface discusses the changing cultural, sociopolitical, and socioeconomic landscape of the modern American South and the effects-positive, negative, and neutral-these changes have had on the region's contemporary literature, including the short stories contained within.
Description:
On November 22, 1963, the author of Behind the Scenes was a young Dallas Times Herald reporter who sprinted from his newspaper desk to Dealey Plaza minutes after shots were fired at President John F. Kennedy. Thus began Darwin Payne’s close involvement in covering one shocking event after another on this history-making weekend.
Eyewitnesses he found at Dealey Plaza included Abraham Zapruder, who insisted from the first moments that the president could not have survived the serious wounds he ha…
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Description:
This is the story of Victor Rodriguez, star track athlete and San Antonio educator. From his earliest days in South Texas in the 1940s he broke many barriers. As a football player and track star he set records and won trophies at Edna High School, at Victoria College, and at North Texas State College. At each stage of his education, he often found himself the only Mexican American in his group. He developed his sports prowess from nine years of early morning running to the church in Edna, to ri…
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Description:
The New Yorker recently referred to Pat Metheny as “possibly the most influential jazz guitarist of the past five decades.” A native of Lee’s Summit, Missouri, just southeast of Kansas City, Metheny started playing in pizza parlors at age fourteen. By the time he graduated from high school he was the first-call guitarist for Kansas City jazz clubs, private clubs, and jazz festivals. Now 66, he attributes his early success to the local musical environment he was brought up in and the players and…
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Description:
his anthology collects the ten winners of the 2020 Best American Newspaper Narrative Writing Contest at UNT’s Mayborn Literary Nonfiction Conference. First place winner: Christopher Goffard, “Detective Trapp” (Los Angeles Times) is about a complicated murder investigation and its human impact. Second place: Annie Gowen, “Left Behind: American Farm Families in Crisis during Trump’s Trade War” (The Washington Post) tells about a despairing farmer’s suicide and aftermath. Third place: Jennifer Ber…
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Description:
This anthology collects the nine winners of the 2021 Best American Newspaper Narrative Writing Contest at UNT’s Mayborn Literary Nonfiction Conference. First-place winner: Greg Jaffe and his three-part series on the pandemic, beginning with “The Pandemic Hit and This Car Became Home for a Family of Four” (The Washington Post). Second place: Hannah Dreier with “The Worst- Case Scenario” (The Washington Post). Third place: Leonora LaPeter Anton, Kavitha Surana, and Kathryn Varn with “Death at Fre…
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Description:
This anthology collects the ten winners of the 2022 Best American Newspaper Narrative Writing Contest at UNT’s Mayborn Literary Nonfiction Conference. First place winner: Jason Fagone, “The Jessica Simulation: Love and Loss in the Age of A.I.,” about one man’s attempt to still communicate with his dead fiancée (San Francisco Chronicle). Second place: Jenna Russell, Penelope Overton, and David Abel, “The Lobster Trap” (The Boston Globe and Portland Press Herald). Third place: Jada Yuan, “Discove…
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Description:
This paper presents the lives and early feminist works of two modernist era poets, Laura Riding Jackson and Muriel Rukeyser. Despite differences of style, the two poets shared a common theme of essentialist feminism before its popularization by 1950s and 60s second wave feminists. The two poets also endured periods of poetic silence or self censorship which can be attributed to modernism, McCarthyism, and rising conservatism. Analysis of their poems helps to remedy their exclusion from the comm…
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Description:
Stephen Goss composed Cinema Paradiso, a six-movement suite for solo guitar, as an homage to films and film directors. Goss cites nihilism as a theme in Dogville, the film that inspires the fourth movement, "Mandalay," but I assert that all the films and many musical devices throughout the piece can be read through the lens of nihilism. The first movement, "Paris, Texas," depicts the stark landscape of the opening scene of the 1984 Wim Wenders film of the same name. "Modern Times" chronicles Ch…
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Description:
In the annals of American western history, few people have left behind such lasting and far-reaching fame as Billy the Kid. Some have suggested that his legend began with his death at the end of Pat Garrett’s revolver on the night of July 14, 1881, in Fort Sumner. Others believe that the legend began with his unforgettable jailbreak in Lincoln, New Mexico, several months prior on April 28, 1881. Others still insist his legend began with the publication in 1926 of Walter Noble Burns’s book, The …
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Description:
Geckos are famous for the skill of switchable adhesion that they use to stick on various surface while keep their fingers super clean. In the dissertation, a unique mechanism was discovered to explain gecko self-cleaning phenomena. Using atomic force microscopy (AFM), we managed to compare the microparticle-substrate adhesion and the microparticle-seta adhesion with a single seta bonded to the AFM cantilever. A dynamic effect was approved that high pulling-off speed could increase the micropart…
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Description:
TNT (2,4,6-trinitrotoluene) is a persistent contaminant at many military installations and poses a threat to aquatic ecosystems. Data from environmental fate and toxicity studies with TNT revealed that sediment toxicity test procedures required modification to accurately assess sediment TNT toxicity. Key modifications included aging TNT-spiked sediments 8-14 d, basing lethal dose on measured sediment concentrations of the molar sum of TNT and its main nitroaromatic (NA) transformation product…
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Description:
This study identifies the biogeographic factors that structure small mammal communities on mountains of the Colorado Plateau and adjacent regions. Forty six isolated ranges were characterized across a 5-state study area encompassing the Colorado Plateau, including the central high plateaus of Utah and the Basin and Range Province (i.e. the Great Basin and mountains of Arizona and New Mexico). Presence/absence data of 25 montane mammal species were used to explore the interactions between histor…
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Description:
In this research, the necessity of understanding and using bioinformatics is demonstrated using the enzyme aspartate transcarbamoylase (ATCase) as the model enzyme. The first portion of this research focuses on the use of bioinformatics. A partial sequence of the pyrB gene found in Enterococcus faecalis was submitted to GenBank and was analyzed against the contiguous sequence from its own genome project. A BLAST (Basic Local Alignment Search Tool; Atschul, et al., 1990) was performed in or…
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Description:
The current study examined 236 undergraduate students in a week long twice-per-day ecological momentary assessment exploring the influence of baseline reward sensitivity and interactions between circadian variables (i.e., total sleep time, sleep quality) and daily measures of reward. Though primary study findings did not support reward sensitivity related moderation of sleep-reward pathways, a number of notable findings emerged. We found evidence of specific domains of reward sensitivity (antic…
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Description:
A fifty page manuscript of poetry and a critical introduction detailing the poet's aesthetics. Using the idea of the double-image and eroticism, the poet places her work in the category of the surreal. She describes the process of writing poetry born of fragmentary elements as a feminist emergence of agency. The manuscript is composed of four sections, each an element in the inevitable breakdown of a love relationship: meeting, love-making, birth of a child, death. Quotes from various authors …
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