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Exploratory Study of Deepwater Currents in the Gulf of Mexico, Volume 1: Executive Summary
Executive summary of a four year project to study deepwater currents in the Western Gulf of Mexico.
Date:
December 2006
Creator:
Donohue, Kathleen; Hamilton, Peter; Leaman, Kevin; Leben, Robert; Prater, Mark; Waddell, Evans et al.
Object Type:
Report
System:
The UNT Digital Library
Exploratory Study of Deepwater Currents in the Gulf of Mexico, Volume 2: Technical Report
Technical report providing data and results of a four year project to study deepwater currents in the Western Gulf of Mexico.
Date:
December 2006
Creator:
Donohue, Kathleen; Hamilton, Peter; Leaman, Kevin; Leban, Robert; Prater, Mark; Waddell, Evans et al.
Object Type:
Report
System:
The UNT Digital Library
Exploring Thai EFL University Students' Awareness of Their Knowledge, Use, and Control of Strategies in Reading and Writing
The purpose of this research was to conduct case studies to explore and describe Thai university students' awareness and application of cognitive and metacognitive strategies when reading and writing in English-as-a-foreign-language (EFL). Four participants, including two high and two low English language proficiency learners, were selected from 14 students enrolled in a five-week course called English for Social Sciences offered at Kasetsart University in Bangkok, Thailand in 2005. The major sources of data for the analyses included the transcripts of the participants' pair discussions, think-aloud protocols, interviews, and daily journal entries. In addition, field work observations, reading and writing strategy checklists, participants' written work, and the comparison of the pretest and posttest results were also instrumental to the analyses. The interpretive approach of content analysis was employed for these four case studies. Findings were initially derived from the single-case analyses, and then from cross-case analyses. Major findings revealed that strategic knowledge enhanced these English-as-a-foreign- language (EFL) learners' proficiency in English reading and writing. However, applying elaborative strategies for higher-level reading was challenging for most of the participants. Two crucial factors that impeded their development were the learners' uncertain procedural and conditional knowledge of strategy uses and their limited English language …
Date:
December 2006
Creator:
Tapinta, Pataraporn
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Friday, December 1, 2006
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 1, 2006
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
[Exterior of museum]
Photograph of trees and a courtyard located outside of the Blanton Museum of Art located in Austin, Texas. The museum is one of the largest university museums in the country.
Date:
2006-12~
Creator:
Mallory, Randy
Object Type:
Photograph
System:
The UNT Digital Library
Family Influences on Young Adult Career Development and Aspirations
The purpose of this study was to examine family influences on career development and aspirations of young adults. Theories and research have examined the influence parents have on children's career development, but because of the multiple factors that influence career choices, understanding the family's influence is complex. The current study utilized ideas from self-determination, attachment, and career development theories to develop a framework for understanding how families influence young adult career development and aspirations. Rather than directly influencing career decisions, the family was proposed to influence processes within individuals that directly influence successful career development. This study used hierarchical regression analyses to test whether different aspects of family relationships and the family environment affect processes within young people, which in turn influence career development. A sample of 99 female and 34 male undergraduate students between 18 and 20 (mean age 18.67) completed questionnaires. Results support the idea that different aspects of the family influence diverse factors of career development and future aspirations. The achievement orientation of the family was predictive of career salience and extrinsic aspirations. Conflict with mothers was predictive of career salience, yet support and depth in the relationship with mothers and low amounts of conflict in the …
Date:
December 2006
Creator:
Bergen, Rebecca June-Schapeler
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Fate of Mercury in Synthetic Gypsum Used for Wallboard Production
This report presents and discusses results from Task 6 of the study 'Fate of Mercury in Synthetic Gypsum Used for Wallboard Production,' performed at a full-scale commercial wallboard plant. Synthetic gypsum produced by wet flue gas desulfurization (FGD) systems on coal-fired power plants is commonly used in the manufacture of wallboard. This practice has long benefited the environment by recycling the FGD gypsum byproduct, which is becoming available in increasing quantities, decreasing the need to landfill this material, and increasing the sustainable design of the wallboard product. However, new concerns have arisen as recent mercury control strategies involve the capture of mercury in FGD systems. The objective of this study is to determine whether any mercury is released into the atmosphere when the synthetic gypsum material is used as a feedstock for wallboard production. The project is being co-funded by the U.S. DOE National Energy Technology Laboratory (Cooperative Agreement DE-FC26-04NT42080), USG Corporation, and EPRI. USG Corporation is the prime contractor, and URS Group is a subcontractor. The project scope now includes six discrete tasks, each conducted at various USG wallboard plants using synthetic gypsum from different FGD systems. The project was originally composed of five tasks, which were to include …
Date:
December 1, 2006
Creator:
Sanderson, Jessica; Blythe, Gary M. & Richardson, Mandi
Object Type:
Text
System:
The UNT Digital Library
Fatigue Testing of Metallurgically-Bonded EBR-II Superheater Tubes
Fatigue crack growth tests were performed on 2¼Cr-1Mo steel specimens machined from ex-service Experimental Breeder Reactor – II (EBR-II) superheater duplex tubes. The tubes had been metallurgically bonded with a 100 µm thick Ni interlayer; the specimens incorporated this bond layer. Tests were performed at room temperature in air and at 400°C in air and humid Ar; cracks were grown at varied levels of constant ?K. Crack growth tests at a range of ?K were also performed on specimens machined from the shell of the superheater. In all conditions the presence of the Ni interlayer was found to result in a net retardation of growth as the crack passed through the interlayer. The mechanism of retardation was identified as a disruption of crack planarity and uniformity after passing through the porous interlayer. Full crack arrest was only observed in a single test performed at near-threshold ?K level (12 MPa?m) at 400°C. In this case the crack tip was blunted by oxidation of the base steel at the steel-interlayer interface.
Date:
December 1, 2006
Creator:
Totemeier, Terry C.
Object Type:
Report
System:
The UNT Digital Library
FCC Record, Volume 21, No. 19, Pages 13665 to 14300, November 27 - December 8, 2006
Biweekly, comprehensive compilation of decisions, reports, public notices, and other documents of the U.S. Federal Communications Commission.
Date:
December 2006
Creator:
United States. Federal Communications Commission.
Object Type:
Book
System:
The UNT Digital Library
FCC Record, Volume 21, No. 20, Pages 14301 to 14919, December 11 - December 22, 2006
Biweekly, comprehensive compilation of decisions, reports, public notices, and other documents of the U.S. Federal Communications Commission.
Date:
December 2006
Creator:
United States. Federal Communications Commission.
Object Type:
Book
System:
The UNT Digital Library
FCC Record, Volume 21, No. 21, Pages 14920 to 15270, December 26 - December 29, 2006
Biweekly, comprehensive compilation of decisions, reports, public notices, and other documents of the U.S. Federal Communications Commission.
Date:
December 2006
Creator:
United States. Federal Communications Commission.
Object Type:
Book
System:
The UNT Digital Library
The Feminine Ancestral Footsteps: Symbolic Language Between Women in The Scarlet Letter and The House of the Seven Gables
This study examines Hawthorne's use of symbols, particularly flowers, in The Scarlet Letter and The House of the Seven Gables. Romantic ideals stressed the full development of the self¬reliant individual, and romantic writers such as Hawthorne believed the individual would fully develop not only spiritually, but also intellectually by taking instruction from the natural world. Hawthorne's heroines reach their full potential as independent women in two steps: they first work together to defeat powerful patriarchies, and they then learn to read natural symbols to cultivate their artistic sensibilities which lead them to a full development of their intellect and spirituality. The focus of this study is Hawthorne's narrative strategy; how the author uses symbols as a language his heroines use to communicate from one generation to the next. In The Scarlet Letter, for instance, the symbol of a rose connects three generations of feminine reformers, Ann Hutchinson, Hester Prynne, and Pearl. By the end of the novel, Pearl interprets a rose as a symbol of her maternal line, which links her back to Ann Hutchinson. Similarly in The House of the Seven Gables Alice, Hepzibah, and Phoebe Pyncheon are part of a family line of women who work together to …
Date:
December 2006
Creator:
Serrano, Gabriela
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Finders Keepers, Volume 4, Number 4, December 2006
The quarterly newsletter of Johnson County Genealogical Society contains information related to the activities of the society and its members as well as genealogical notes and history for the Johnson County, Texas and surrounding areas.
Date:
December 2006
Creator:
Johnson County Genealogical Society (Tex.)
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
First search at CDF for the Higgs boson decaying to a W-boson pair in proton-antiproton collisions at the center-of-mass energy of 1.96 TeV
By way of retaining the gauge invariance of the Standard Model (SM) and giving masses to the W{sup {+-}} and Z{sup 0} bosons and the fermions, the Higgs mechanism predicts the existence of a neutral scalar bosonic particle, whose mass is not exactly known. The Higgs boson is the only experimentally unconfirmed SM particle to date. This thesis documents a search for the Higgs boson in p{bar p} collisions at {radical}s = 1.96 TeV at the Tevatron, using 360 {+-} pb {sup -1} data collected by the Run II Collider Detector at Fermilab (CDF II), as part of the most important quest for contemporary particle physicists. The search was for a Higgs boson decaying to a pair of W{sup {+-}} bosons, where each W boson decays to an electron, a muon or a tau that further decays to an electron or a muon with associated neutrinos. Events with two charged leptons plus large missing energy were selected in data triggered on a high p{sub t} lepton and compared to the signal and backgrounds modeled using Monte Carlo and jet data. No signal-like excess was observed in data. Therefore, upper limits on the HWW production cross-section in the analyzed mass range …
Date:
December 1, 2006
Creator:
Chuang, Shan-Huei S.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
FLASH X-RAY (FXR) LINEAR INDUCTION ACCELERATOR (LIA) OPTIMIZATION Upgrade of the OTR Emittance Diagnostic
Knowing the electron beam parameters at the exit of an accelerator is critical for several reasons. Foremost is to optimize the application of the beam, which is flash radiography in the case of the FXR accelerator. The beam parameters not only determine the theoretical dose, x-ray spectrum, and radiograph resolution (spot size), they are required to calculate the final transport magnetic fields that focus the beam on the bremsstrahlung converter to achieve the theoretical limits. Equally important is the comparison of beam parameters to the design specifications. This comparison indicates the ''health'' of the accelerator, warning the operator when systems are deteriorating or failing. For an accelerator of the size and complexity of FXR, a large suite of diagnostics is normally employed to measure and/or infer beam parameters. These diagnostics are distributed throughout the accelerator and can require a large number of ''shots'' (measurements) to calculate a specific beam parameter. The OTR Emittance Diagnostic, however, has the potential to measure all but one of the beam parameters simultaneous at a specific location. Using measurements from a scan of a few shots, this final parameter can also be determined. Since first deployment, the OTR Emittance Diagnostic has been limited to measuring …
Date:
December 1, 2006
Creator:
Houck, T L & Wargo, P E
Object Type:
Report
System:
The UNT Digital Library
[Flyer: 150th Birthday Awards Celebration]
Flyer advertising a birthday celebration for the City of Dallas produced by the Black Academy of Arts and Letters on December 7, 2006 at the Academy.
Date:
December 2006
Creator:
Black Academy of Arts and Letters
Object Type:
Pamphlet
System:
The UNT Digital Library
Foucault's Foundationless Democratic Theory
I examine a key shift in Michel Foucault's political philosophy from a position in which he was a staunch anti-humanist, to a final position in which he advocated not only the ability of the subject to influence his political condition, but also the individual freedoms assured by a democratic form of government. I begin by summarizing his overall critique of the post-Enlightenment West, and then explain how his observation of the Iranian Revolution served as a key turning point concerning his attitude towards the subject. Next, I elaborate on the direction of Foucault's late writings and examine how his new conceptualization of the subject leads him to embrace a democratic political system albeit free from Enlightenment philosophical foundations. I conclude by critiquing Foucault's foundationless democratic theory on the basis that it would ultimately undermine the individual freedoms and aesthetic development that he seeks to protect.
Date:
December 2006
Creator:
Carter, Kelly A.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Framework of Automatic Subject Term Assignment: An Indexing Conception-Based Approach
The purpose of dissertation is to examine whether the understandings of subject indexing processes conducted by human indexers have a positive impact on the effectiveness of automatic subject term assignment through text categorization (TC). More specifically, human indexers' subject indexing approaches or conceptions in conjunction with semantic sources were explored in the context of a typical scientific journal article data set. Based on the premise that subject indexing approaches or conceptions with semantic sources are important for automatic subject term assignment through TC, this study proposed an indexing conception-based framework. For the purpose of this study, three hypotheses were tested: 1) the effectiveness of semantic sources, 2) the effectiveness of an indexing conception-based framework, and 3) the effectiveness of each of three indexing conception-based approaches (the content-oriented, the document-oriented, and the domain-oriented approaches). The experiments were conducted using a support vector machine implementation in WEKA (Witten, & Frank, 2000). The experiment results pointed out that cited works, source title, and title were as effective as the full text, while keyword was found more effective than the full text. In addition, the findings showed that an indexing conception-based framework was more effective than the full text. Especially, the content-oriented and the …
Date:
December 2006
Creator:
Chung, EunKyung
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Function of the ENOD8 gene in nodules of Medicago truncatula.
To elaborate on the function(s) of the ENOD8 gene in the nodules of M. truncatula, several different experimental approaches were used. A census of the ENOD8 genes was first completed indicating that only ENOD8.1 (nt10554-12564 of GenBank AF463407) is highly expressed in nodule tissues. A maltose binding protein-ENOD8 fusion protein was made with an E. coli recombinant system. A variety of biochemical assays were undertaken with the MBP-ENOD8 recombinant protein expressed in E. coli, which did not yield the esterase activity observed for ENOD8 protein nodule fractions purified from M. sativa, tested on general esterase substrates, α-naphthyl acetate, and p-nitrophenylacetate. Attempts were also made to express ENOD8 in a Pichia pastoris system; no ENOD8 protein could be detected from Pichia pastoris strains which were transformed with the ENOD8 expression cassette. Additionally, it was shown that the ENOD8 protein can be recombinantly synthesized by Nicotiana benthamiana in a soluble form, which could be tested for activity toward esterase substrates, bearing resemblance to nodule compounds, such as the Nod factor. Transcription localization studies using an ENOD8 promoter gusA fusion indicated that ENOD8 is expressed in the bacteroid-invaded zone of the nodule. The ENOD8 protein was also detected in that same zone by …
Date:
December 2006
Creator:
Coque, Laurent
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
[Funeral Program for Don Edward James, December 1, 2006]
Funeral program for Don Edward James, born March 22, 1945 and died November 26, 2006. The funeral was held Friday, December 1, 2006 at New Light Baptist Church, officiated by Rev. J. S. Smith. He was buried in Meadowlawn Memorial Park in San Antonio, Texas.
Date:
December 1, 2006
Creator:
unknown
Object Type:
Pamphlet
System:
The Portal to Texas History
Gauge Mediation in Supergravity and Gravitino Dark Matter
Gravitinos and hidden sector fields often cause a cosmological disaster in supersymmetric models. We find that a model with gravitational gauge mediation solves such a problem quite naturally. The {mu}-problem is also absent in the model. Moreover, the abundance of gravitinos explains correct amount of dark matter of the universe. The dark matter abundance can be calculated without detailed information on the thermal history of the universe such as the reheating temperature after inflation.
Date:
December 1, 2006
Creator:
Ibe, Masahiro & Kitano, Ryuichiro
Object Type:
Report
System:
The UNT Digital Library
Gauge Trimming of Neutrino Masses
We show that under a new U(1) gauge symmetry, which is non-anomalous in the presence of one ''right-handed neutrino'' per generation and consistent with the standard model Yukawa couplings, the most general fermion charges are determined in terms of four rational parameters. This generalization of the B-L symmetry with generation-dependent lepton charges leads to neutrino masses induced by operators of high dimensionality. Neutrino masses are thus naturally small without invoking physics at energies above the TeV scale, whether neutrinos are Majorana or Dirac fermions. This ''Leptocratic'' Model predicts the existence of light quasi-sterile neutrinos with consequences for cosmology, and implies that collider experiments may reveal the origin of neutrino masses.
Date:
December 1, 2006
Creator:
Chen, Mu-Chun; de Gouvea, Andre & Dobrescu, Bogdan A.
Object Type:
Article
System:
The UNT Digital Library
General Chemistry Topic Coverage (GCTC) comparison between community colleges and universities in the United States.
This study is based on survey responses of 224 general chemistry instructors at United States (U.S.) community colleges and universities representing 46 states. The mean values of General Chemistry Topic Coverage (GCTC) score, developed by this researcher specifically for this dissertation study as a measure of course content, were statistically analyzed. The aim of this study is to answer five research questions: (a) Is there a difference in mean GCTC scores between U.S. community colleges and four-year colleges and universities? (b) If there is a difference in mean GCTC score between the two study groups, what are the observed differences in subtopics covered between community colleges and four-year colleges and universities? (c) Considering both community colleges and universities, is there a difference in mean GCTC score between the different designated U.S. regions? (d) Considering both community college and university professors, is there a difference in GCTC score for professors with a master's degree compared to those with a doctorate?, and (e) Is there a correlation between GCTC score and the percentage of students that major in science? Results indicate that there is a statistically significant difference in course content between community colleges and universities, there is a statistically significant difference …
Date:
December 2006
Creator:
El-Ashmawy, Amina Khalifa
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Grade-Level Retention in Texas Public Schools: 2004-2005
Annual report of compiled data regarding student retention in Texas public schools, broken down by grade levels, various demographic criteria, and participation in special programs, as well as information regarding data collection and analysis.
Date:
December 2006
Creator:
Texas Education Agency. Division of Accountability Research.
Object Type:
Report
System:
The Portal to Texas History