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UNT Scholarly Works
- AL 00-3
- This abstract painting is mostly black with some white vertical scrapes. digital.library.unt.edu/ark:/67531/metadc27160/
- AZ 01-14
- This abstract painting is predominately white with green, pink and gray vertical strokes broken by an implied horizontal line. digital.library.unt.edu/ark:/67531/metadc27167/
- 2,490 Feet
- The work is a coiled piece of paper that measures 2,490 feet when unwound. Pieces of white string tie sections to hold it in place. digital.library.unt.edu/ark:/67531/metadc129809/
- 3-Center-4-Electron Bonding in [(silox)2Mo=NtBu]2(μ-Hg) Controls Reactivity while Frontier Orbitals Permit a Dimolybdenum π-Bond Energy Estimate
- This article discusses 3-center-4-electron bonding. Abstract: Na/Hg reduction of (silox)2Cl2Mo=NtBu (3) afforded C2h [(silox)2Mo=NtBu]2(μ-Hg) (12-Hg), which consists of two distorted trigonal monoprisms with Hg at the each apex (d(MoHg) = 2.6810(5)Å). Calculations reveal 3c4e bonding in the linear MoHgMo linkage that renders 12-Hg susceptible to nucleophilic cleavage. Exposure to PMe3 and pyridine rapidly (<5 min) affords (silox)2(tBuN)MoLn (L = PMe3, n = 1 (1-PMe3); py, n = 2 (1-py2)), while poorer nucleophiles (L = C2H4, 2-butyne) yield adducts (e.g., 1-C2H4 and 1-C2Me2) after prolonged heating. The HOMO and LUMO of 12-Hg are "stretched" π and π* orbitals from which four states arise: 1Ag (GS), 3Bu, 1Bu, and 1Ag. ∆E = E(1Bu) - E(3Bu) = 2K, where K is the exchange energy. Magnetic studies indicate E(3Bu) - E(1Ag) ≈ 550 cm-1 (calcd 1744 cm-1), and a UV-vis absorption at 10 000 cm-1 is assigned to 1Ag → 1Bu, permitting K to be evaluated as 4725 cm-1. With the π → π* transition in Schrock's [Mo(NAr)(CH2tBu)(OC6F5)]2 (4) assigned at 528 nm, this estimation places its π-bond energy as {E(π2 → π-1 → π*1 in 4) - E(1Ag → 1Bu in 12-Hg)} + E(1Ag → 3Bu in 12-Hg) = 27 kcal/mol. digital.library.unt.edu/ark:/67531/metadc77136/
- [4-panel piece, handmade paper on silk]
- The artwork consists of four panels each turned on point. A grid ladder pattern turned in various directions appears in each panel. The colors are warm reddish browns and light blues. Other rectangular and triangular outlined shapes appear scattered across the panels. digital.library.unt.edu/ark:/67531/metadc27051/
- 7.5 Minute Quadrangle Project
- This presentation discusses the 7.5 minute quadrangle project by the University of North Texas (UNT) Libraries' Digital Projects Unit. This presentation gives the background, goals, processes, challenges, and next steps. digital.library.unt.edu/ark:/67531/metadc84317/
- [12 panel handmade paper and silk artwork]
- The artwork consists of twelve panels in varying hues of pinks, blues, browns with some angular textured lines resembling furrows and some blue lines resembling water run through and across the panels. digital.library.unt.edu/ark:/67531/metadc27050/
- 86-3
- Dark background with many small geometric shapes, lines and dots in bright colors evenly spaced around the canvas over a structured linear pattern. digital.library.unt.edu/ark:/67531/metadc27119/
- 87-205 with Mickey Mouse
- Linear patterns in background mostly in whites and grays layered with small geometric shapes in multi-hues with Mickey Mouse cartoon character emerging from the lower edge. digital.library.unt.edu/ark:/67531/metadc27120/
- 88-4
- Black background with linear patterns and small multi-hued geometric shapes float on the surface. digital.library.unt.edu/ark:/67531/metadc27121/
- 90-208, Voyager
- Light shades of pinkish grays create the background juxtaposed with linear pattern and layered with small multi-hued geometric shapes and a linear drawing of a ship and silhouettes of two figures. digital.library.unt.edu/ark:/67531/metadc27123/
- 92-204
- The background of this painting consists of gradations of red, orange, pink and gray hues layered with lines created by many dots of paint. Overlayed are images of running dogs and small geometric shapes. digital.library.unt.edu/ark:/67531/metadc27124/
- 93-4/94-1
- Black background with linear patterns created by many small dots of paint. Many small, multi-hued circles float across the surface and dotted lines follow the background linear zigzag pattern. digital.library.unt.edu/ark:/67531/metadc27125/
- 94-2
- Black painting with zigzag linear pattern created with many small dots of paint and layered with many gray circles of various patterns and sizes. digital.library.unt.edu/ark:/67531/metadc27126/
- 94-3
- Light gray painting with linear pattern with many small gray circles spread across the surface. digital.library.unt.edu/ark:/67531/metadc27130/
- 94-203
- Vertical gray painting with repeating linear white lines spreading from two centers, one in the upper half and one in the lower half of the painting. Many circles of various gray hues float across the surface. digital.library.unt.edu/ark:/67531/metadc27127/
- 94-204
- Vertical black painting with linear pattern and many gray circles floating across the surface. digital.library.unt.edu/ark:/67531/metadc27128/
- 94-207
- Vertical painting in gray shades with white linear pattern and circles of various shades of gray float across the surface. digital.library.unt.edu/ark:/67531/metadc27129/
- 95-3
- This vertical painting consists of a highly detailed patterned background across which are scattered various sized circles. digital.library.unt.edu/ark:/67531/metadc27131/
- 95-6
- Vertical painting consists of horizontal bands of black and reddish brown and floating on surface are red circles and half-circles. digital.library.unt.edu/ark:/67531/metadc27132/
- 95-7
- Dark painting with horizontal and vertical stripes create a plaid pattern of red, blue, and black. Multi-hued circles float on the surface and linear, thin, dark lines create another pattern of zigzag. digital.library.unt.edu/ark:/67531/metadc27133/
- A 97-1
- Large black brushstrokes fill background with small, multi-colored circles floating on surface. digital.library.unt.edu/ark:/67531/metadc27137/
- E 97-5
- Vertical painting with horizonal brown brushstrokes with four gradation motifs on the top half of the painting. digital.library.unt.edu/ark:/67531/metadc27139/
- L 97-12
- Vertical painting with vertical yellow and brown brushstrokes. Floating in the center of the painting a black to white gradation motif consists of horizontal brushstrokes. digital.library.unt.edu/ark:/67531/metadc27143/
- S 98-7
- Loose brown, white and black brushstrokes scraped and smeared with a gradation from white to black motif floating in the center of the canvas. digital.library.unt.edu/ark:/67531/metadc27147/
- ₁¹H+ - and ₂⁴He+ - induced M-shell x-ray-production cross sections for selected elements in the rare-earth region
- This article discusses ₁¹H+ - and ₂⁴He+ -induced M-shell x-ray production cross sections for selected elements in the rare-earth region. Abstract: The measurements of M-shell x-ray-production cross sections induced by ₁¹H+ and ₂⁴He+ ions are compared to the first-Born-approximation and ECPSSR (energy loss, Coulomb-deflection effects; perturbed-stationary-state approximation, with relativistic corrections) theories. Most of the reported experimental data were measured in the authors' laboratory and the other measurements were taken from the literature. The data from the authors' laboratory were for incident H+ and He+ ions in the energy range from 0.25 to 2.5 MeV. The M-shell x-ray-production cross sections were measured for the following thin targets: 59Pr, 60Nd, 63Eu, 64Gd, 66Dy, 67Ho, 68Er, 70Yb, and 72Hf. The data were for the following elements: 54Xe, 59Pr, 60Nd, 62Sm, 63Eu, 64Gd, 65Tb, 66Dy, 67Ho, 68Er, 70Yb, 72Hf, 73Ta, 74W, 78Pt, 79Au, 80Hg, 82Pb, 83Bi, and 92U. The first-born-approximation calculations of the ionization cross section were made using the plane-wave Born approximation for direct ionization and the Oppenheimer-Brinkman-Kramers approximation of Nikolaev for electron capture. The ECPSSR theory of Brandt and Lapicki [Phys. Rev. A 23, 1717 (1981)] goes beyond the first Born approximation and accounts for the energy loss, Coulomb deflection, and relativistic effects in the perturbed-stationary-state theory. The first Born approximation overpredicts all measurements. The ECPSSR theory predicts the M-shell production cross sections correctly for Z2 > 70 and energies per μ > 0.25 MeV/μ. In the rare-earth region the ECPSSR results lie above the data at higher projectile energies and fall off below the data at lower energies. digital.library.unt.edu/ark:/67531/metadc139491/
- 2008 DOT GOV Harvest Preserving Access
- This presentation outlines the history, tool building, partner activities and future work for a collaborative project between the University of North Texas, the Library of Congress, the Internet Archive, the California Digital Library, and the U.S. Government Printing Office. digital.library.unt.edu/ark:/67531/metadc28365/
- The 2011 Beta Eta Spring Banquet. Celebration of Rediscovery of the Elements
- Article describing an Eta Beta celebration of the completion of James and Virginia Marshall's "Rediscovery of the Elements." Photographs from the event are included. Three separate articles appear on the right side of the page. digital.library.unt.edu/ark:/67531/metadc111260/
- 2012 Presidential Primaries
- This poster introduces the faculty lecture series UNT Speaks Out on the 2012 Presidential Primaries. This series features Dr. Tony Carey, assistant professor in the Department of Political Science, Dr. Matthew Eshbaugh-Soha, associate professor in the Department of Political Science, and Dr. Brian Lain, associate professor in the Department of Communications Studies and director of UNT's Debate Program. digital.library.unt.edu/ark:/67531/metadc83784/
- The 2012 Republican Primaries
- This presentation is part of the faculty lecture series UNT Speaks Out on the 2012 Presidential Primaries. In this presentation, the author gives the audience an overview of the structure of the primaries, and provides a recap of past primaries. The author also speaks about the money, momentum, and media attention in the primaries. digital.library.unt.edu/ark:/67531/metadc83792/
- The 21st Century Library: Collaborative Services, Standards, and Interoperability
- This presentation discusses the collaborative services, standards and interoperability of libraries in the 21st century. The topics include information about the emerging library environment, interoperability, key standards, and designing services for the networked library. digital.library.unt.edu/ark:/67531/metadc38881/
- AA 99-6
- Painting consists of white, black, and tan brushstrokes, smeared and scraped. Two gradation motifs float vertically in the center of the canvas. digital.library.unt.edu/ark:/67531/metadc27148/
- Abraham model correlations for solute partitioning into o-xylene, m-xylene and p-xylene from both water and the gas phase
- This article discusses Abraham model correlations for solute partitioning into o-xylene, m-xylene and p-xylene from both water and the gas phase. Abstract: Experimental data have been compiled from the publisher literature on the partition coefficients of solutes and vapors into o-xylene, m-xylene and p-xylene at 298 K. The logarithms of the water-to-xylene partition coefficients, log P, and gas-to-xylene partition coefficients, log K, were correlated with the Abraham solvation parameter model. The derived mathematical expressions described the observed log P and log K data for the three xylene isomers to within average deviations of 0.14 log units or less. digital.library.unt.edu/ark:/67531/metadc155635/
- Abraham Model Correlations for Transfer of Neutral Molecules and Ions to Sulfolane
- This article discusses Abraham model correlations for the transfer of neutral molecules and ions to sulfolane. Data have been compiled from the published literature on the partition coefficients of solutes and vapors into anhydrous sulfolane. The logarithms of the water-to-sulfolane partition coefficients, log P, and gas-to-sulfolane partition coefficients, log K, were correlated with the Abraham solvation parameter model. The derived correlations described the observed log P and log K values for solutes dissolved in sulfolane to within average standard deviations of 0.14 log units or less. The log P correlation was extended to include the partition of ions by inclusion of a cation-solvent and an anion-solvent term. digital.library.unt.edu/ark:/67531/metadc157293/
- Abriendo Puertas Hacia el Futuro: The Road Toward Becoming an Educator
- This paper discusses The Oral History Project and research on becoming an educator. Abstract: The Oral History Project offers an inside perspective to the Latina/o professors currently at the University of North Texas (UNT). This project gave students the opportunity to learn about the educational, personal, and professional trajectory of these professors and will acquaint the UNT community with the diverse experiences and perspectives of professors. Dr. Molina acts as a bridge between teachers-to-be and the diverse population of students with whom they will be working. By balancing all aspects of her life, she was capable of achieving what others would consider an impossible task. Dr. Molina emphasizes the importance of choice, and how her choices shaped the path that led her to where she is today. digital.library.unt.edu/ark:/67531/metadc84362/
- Absorption and Emission in the Non-Poissonian Case
- This article discusses absorption and emission in the Non-Poissonian Case. Abstract: This Letter addresses the challenging problems posed to the Kubo-Anderson (KA) theory by the discovery of intermittent resonant fluorescence with a nonexponential distribution of waiting times. We show how to extend the KA theory from aged to aging systems, aging for a very extended time period or even forever, being a crucial consequence of non-Poisson statistics. digital.library.unt.edu/ark:/67531/metadc67641/
- Abstract Emotions 10
- The born digital photograph consists of a textured red color in the bottom two-thirds of the image and the upper portion is mostly purple with many spots of various colors. digital.library.unt.edu/ark:/67531/metadc129796/
- Abstract Emotions 14
- The born digital photograph orange textured color in the lower area while the uppermost is mostly a white textured area with many colors creating the texture. Between the orange and white areas is a blue section. The surface of the work is highly textured and swirls with movement. digital.library.unt.edu/ark:/67531/metadc129797/
- An Abstract Index Theorem on Non-Compact Riemannian Manifolds
- This article discusses an abstract index theorem on non-compact Riemannian manifolds. Abstract: We prove an abstract index theorem for essentially self-adjoint Fredholm supersymmetric first-order elliptic differential operators on Hermitian vector bundles over complete oriented Riemannian manifolds. According to our main result the supersymmetric L2-index of such an operator can be expressed as the sum of a "local contribution" (the familiar Atiyah-Singer index form, suitably restricted to and integrated over a finite region) and a "boundary contribution" (which depends only on the restriction of the operator at large distances). This is done by splicing together local parametrices and Green's operators defined "at infinity". The result yields (in fact is equivalent to) a generalisation of the relative index theorem of Gromov and Lawson. digital.library.unt.edu/ark:/67531/metadc159527/
- AC 99-8
- The majority of the abstract painting consists of black and white brushstrokes, smeared and scraped. Across the uppermost center edge of the canvas is a color strip of nine different colors. digital.library.unt.edu/ark:/67531/metadc27149/
- AC 2007-1844: An Innovative Mechanical and Energy Engineering Curriculum
- This paper discusses Mechanical and Energy Engineering curriculum. Abstract: The continuing expansion of the new College of Engineering at the University of North Texas (UNT) has created an opportunity to establish a new Department of Mechanical and Energy Engineering and an excellent occasion for the establishment of innovative and interdisciplinary approaches to engineering education. The explicit addition of Energy to the Mechanical Engineering curriculum is a new model of engineering education that parallels the innovations of our current Learning to Learn (L2L) project oriented concept course with the addition of innovative approaches for mechanical engineering and emphasis on energy engineering education. The new Mechanical and Energy Engineering (MEE) baccalaureate-level program will provide the intellectual foundation for successful career preparation and lifelong learning for the students. This innovative curriculum has been designed with a system-level approach to ME-based design., on the fundamentals of undergraduate level energy engineering within the mechanical engineering discipline, and will provide experiential-oriented approaches for the better understanding of classical mechanical engineering principles. It will also provide a new interdisciplinary ME curriculum approach to the most important energy technology areas. We are going to present the curriculum and discuss components of the program from freshman to to senior years. We expect that the graduates of this innovative undergraduate curriculum in Mechanical and Energy Engineering will have a unique educational experience with systems integration approach for addressing industrial challenges; working on interdisciplinary teams; and with cognitive learning experiences for responsible lifelong learning, in order to sustain creativity and productivity in their careers. digital.library.unt.edu/ark:/67531/metadc67616/
- Access to Film and Video Works: Surrogates for Moving Image Documents
- This doctoral dissertation discusses access to film and video works. Physical and intellectual access to moving image documents is insufficient, often insignificant, at the level of the individual user. Existing access tools suffer from a lack of recognition of the differences between linguistic text communication and image communication. Browsing and relevance judgements are made difficult by the physical realities of film and video documents - one cannot flip through them - and by the habits of serial and passive viewing. digital.library.unt.edu/ark:/67531/metadc77222/
- According to the Goal: How Eliyahu Goldratt Helps Organizations Examine Their Processes to Achieve Maximum Results
- Thesis written by a student in the UNT Honors College discussing Eliyahu Goldratt's "Theory of Constraints," summarizes the book "The Goal: A Process of Ongoing Improvement," and examines a company applying this theory. digital.library.unt.edu/ark:/67531/metadc146513/
- Accountable Science: The COMPETES Act Needs to Demonstrate an Accountability Attitude
- This article discusses the U.S. National Science Foundation's (NSF) Broader Impacts Merit Review Criterion in relation to the America COMPETES Reauthorization Act of 2010. digital.library.unt.edu/ark:/67531/metadc86163/
- Accurate Enthalpies of Formation of Alkali and Alkaline Earth Metal Oxides and Hydroxides: Assessment of the Correlation Consistent Composite Approach (ccCA)
- This article discusses accurate enthalpies of formation of alkali and alkaline earth metal oxides and hydroxides. Abstract: Computing the enthalpies of formation for alkali metal and alkaline earth metal oxides (MₓO) and hydroxides [M(OH)n] using the Gaussian-n (Gn) and Weismann-n (Wn) ab initio model chemistries is difficult due to an improper treatment of core-valence electron correlation effects. Using a new model chemistry called the correlation consistent Composite Approach (ccCA), enthalpies of formation were determined for eight different alkali/alkaline earth metal oxides and hydroxides. Unlike the Gn and Wn model chemistries, which must be modified to properly account for core-valence electron correlation, the standard implementations of the ccCA provide acceptable results, and all enthalpies of formation obtained with the ccCA are within the accepted range of recommended values. digital.library.unt.edu/ark:/67531/metadc77173/
- Acetylcholine-Containing Neuroepithelial Cells in Fish Gills Support the Cholinergic Hypothesis of O2 Chemoreception
- This paper discusses research on acetylcholine-containing neuroepithelial cells in fish gills. Abstract: The neurochemical link between O2 chemoreceptors and afferent nerves that carry information about O2 levels to cardio-ventilatory centers in the brain has yet to be determined. This study examines the roles of two candidate neurotransmitters thought to be involved in O2 chemoreception, using channel catfish, Ictalurus punctatus. Fish gills are the evolutionary progenitors of arterial arches (aortic and carotid) of mammals where O2 chemoreceptors are located. Neuroepithelial cells (NECs) containing serotonin (5-HT) and acetylcholine (Ach) were confirmed in the first gill arch using immunohistochemistry and laser confocal microscopy. 5-HT-containing NECs were aggregated around the efferent branchial artery, near tips of filaments and lamellae, ACh-containing NECs at the distal tips of filaments. Preliminary co-localization experiments indicate separate 5-HT and Ach-containing cells. This is the first demonstration of ACh-containing NECs and results of this study support pharmacological studies suggesting that ACh is the primary neurochemical involved in O2 chemoreception in vertebrates. digital.library.unt.edu/ark:/67531/metadc86190/
- Acetylcholine-Containing Neuroepithelial Cells in Fish Gills Support the Cholinergic Hypothesis of O2 Chemoreception
- This presentation discusses research on acetylcholine-containing neuroepithelial cells in fish gills. digital.library.unt.edu/ark:/67531/metadc93292/
- Acquisition of Sino-Japanese Characters by Non-Native Language Students: A Primary Language Approach
- This poster discusses research on how non-native, western speakers acquire languages involving Sino/Japanese characters. Specifically, it addresses how elements from instruction in the native language and culture may be modified to enhance mastery of the given language with regard to character use and literacy. digital.library.unt.edu/ark:/67531/metadc86836/
- Actigraphy, Sleep Diaries and Polysomnography in College Students with Insomnia
- Thesis written by a student in the UNT Honors College discussing the use of actigraphy on college students to measure the number of awakenings, wake after sleep onset, total sleep time, and sleep efficiency. digital.library.unt.edu/ark:/67531/metadc146541/
- The Action of Action Research: An Analysis of Action Research Projects Completed in the UNT/Denton ISD PDS
- This paper discusses Action research. Abstract: Action research is the inquiry part of a Professional Development School (PDS) model that all UNT elementary education, pre-service teacher/student interns complete with mentor teachers during student teaching. Approximately 300 projects were completed across four years in the Denton PDS. The 300 projects were examined to determine the trends in action research. Due to the qualitative nature of the study, there were no hypotheses, only assumptions that there were trends. The method used to examine the projects employed qualitative analysis techniques using the electronic program NVIVO. The results indicated that there were trends in questions that tended toward behavioral and transition issues in the classroom. The major research conclusion is that the Denton PDS follows the National Council for Accreditation of Teacher Education (NCATE) PDS Standards in the categories of "At Standard" and "Leading" in the area of action research implementation. digital.library.unt.edu/ark:/67531/metadc86181/