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  Partner: UNT Libraries
 Degree Level: Master's
 Collection: UNT Theses and Dissertations
Southern Genre Painting and Illustration from 1830 to 1890

Southern Genre Painting and Illustration from 1830 to 1890

Date: December 1997
Creator: Akard, Carrie Meitzner
Description: The purpose of this thesis is to give a concise view of stylistic, iconographical, and iconological trends in Southern genre paintings and illustrations between 1830 and 1890 by native Southern artists and artists who lived at least ten years in the South. Exploration of artworks was accomplished by compiling as many artworks as possible per decade, separating each decade by dominant trends in subject matter, and researching to determine political and/or social implications associated with and affecting each image. Historical documents and the findings of other scholars revealed that many artworks carried political overtones reflecting the dominant thought of the white ruling class during the period while the significance and interpretation of other artworks was achieved by studying dominant personal beliefs and social practices.
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Photoactivatable Quantum Dots in Super-Resolution Microscopy of Muscle

Photoactivatable Quantum Dots in Super-Resolution Microscopy of Muscle

Date: December 2010
Creator: Akel, Amal
Description: Super-resolution 3D imaging was achieved using newly synthesized photoactivatable quantum dot (PAQ dot) probes. Quantum dots were modified with a novel quencher system to make them photoactivatable. The unique properties of these PAQ dots enable single-fluorophore localization in three dimensions using a confocal microscopy optical sectioning method. Myosin and tropomyosin of rabbit myofibrilar bundles were specifically labeled with the newly synthesized PAQ dot. A sufficient number of single quantum dots were photoactivated, localized and reduced to their centroid and then reconstructed to a super-resolution image. The acquired super-resolution image shows a lateral and an axial sub-diffraction resolution and demonstrates ultrafine striations with widths less than 70 nm that are not evident by conventional confocal microscopy. The striations appear to be related to nebulin thin filament binding protein. This newly developed imaging system is cutting edge for its high resolution and localization as well its simplicity and convenience.
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Muscular Differences Between Female Power and Endurance Athletes

Muscular Differences Between Female Power and Endurance Athletes

Date: August 1997
Creator: Akers, Allen (Roy Allen)
Description: The purpose of this study was to compare the torque generating capabilities and fatigue responses of female power athletes, female endurance athletes, and age-matched female non-athletic controls.
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Determination of Molecular Descriptors for Illegal Drugs by Gc-fid Using Abraham Solvation Model

Determination of Molecular Descriptors for Illegal Drugs by Gc-fid Using Abraham Solvation Model

Date: December 2013
Creator: Akhter, Syeda Sabrina
Description: The Abraham solvation parameter model is a good approach for analyzing and predicting biological activities and partitioning coefficients. The general solvation equation has been used to predict the solute property (SP) behavior of drug compounds between biological barriers. Gas chromatography (GC) retention time can be used to predict molecular descriptors, such as E, S, A, B & L for existing and newly developed drug compounds. In this research, six columns of different stationary phases were used to predict the Abraham molecular descriptors more accurately. The six stationary phases used were 5% phenylmethyl polysiloxane, 6% cyanopropylphenyl 94% dimethylpolysiloxane, 5% diphenyl 95% dimethylpolysiloxane, 100% dimethylpolysiloxane, polyethylene glycol and 35% diphenyl 65% dimethylpolysiloxane. Retention times (RT) of 75 compounds have been measured and logarithm of experimental average retention time Ln(RTexp) are calculated. The Abraham solvation model is then applied to predict the process coefficients of these compounds using the literature values of the molecular descriptors (Acree Compilation descriptors). Six correlation equations are built up as a training set for each of the six columns. The six equations are then used to predict the molecular descriptors of the illegal drugs as a test set. This work shows the ability to extract molecular information from ...
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A Study to Determine the Common Elements in Ten Newbery Medal Books (1940-1949)

A Study to Determine the Common Elements in Ten Newbery Medal Books (1940-1949)

Date: 1950
Creator: Akin, Alva-Myrtie
Description: The purpose of this study is twofold: first, to determine whether the Newbery Medal Books under consideration meet the commonly accepted requirements of children's literature; and second, if they do not, to determine wherein they differ from acceptable criteria.
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Baeyer-Villiger Oxidation of 1,7- & 1,9-dibromopentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione

Baeyer-Villiger Oxidation of 1,7- & 1,9-dibromopentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione

Access: Use of this item is restricted to the UNT Community.
Date: May 2004
Creator: Akinola, Adeniyi O.
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 ammonium nitrate (CAN) was also performed and afforded a mixture of lactones. Only one of these lactones, which also contained an alkene functionality, could be isolated and characterized. 1,7-dibromo-PCU-8,11-dione was also reacted with CAN, yielding the mono-lactone, which has also been characterized.
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Synthesis, characterization and properties of rigid macromolecules with extended conjugation, using palladium-catalyzed alkynylated polyhaloarenes.

Synthesis, characterization and properties of rigid macromolecules with extended conjugation, using palladium-catalyzed alkynylated polyhaloarenes.

Date: December 2007
Creator: Akintomide, Temiloluwa
Description: A synthetic approach to macromolecules of acetylenic arrays and luminescent properties is proposed and the execution of initial steps is described. Palladium-catalyzed coupling of 1,3,5-triiodobenzene with trimethylsilylbuta-1,3-diyne, trimethylsilylocta-1,3,5,7-tetrayne, and trimethylsilylhexadeca-1,3,5,7,9,11,13,15-octayne to yield the new 1,3,5-tris(trimethylsilylbuta-1,3-diynyl)benzene and the proposed 1,3,5-tris(8-(trimethylsilyl)octa-1,3,5,7-tetraynyl)benzene and 1,3,5-tris(trimethylsilyl)hexadeca-1,3,5,7,9,11,13,15-octaynyl)benzene respectively. The proposed three-coordinate Au (I) complexed macromolecules will be derived from the metallation of the aforementioned alkynylated arenes.
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Transnational Organized Crime and the Drug Business

Transnational Organized Crime and the Drug Business

Date: August 2002
Creator: Aksakal, Baris
Description: This study analyzes the activities of the organized crime groups involved in the drug business, as well as examining national and international efforts to control these groups. Specifically, this study addresses the following questions: How is organized crime connected to the international drug business?; What are the major transnational organized crime groups involved in the international drug business?; What is the nature of the drug problem as it relates to organized crime internationally?; What international cooperative law enforcement efforts currently exist to deal with organized crime and the drug business? Findings indicate that efforts to create an effective international law enforcement network are needed to meet the challenges of drug trafficking and globalized crime. To date, such efforts have largely been unsuccessful.
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Routine Leisure Activities and Adolescent Marijuana Use: Moderating Effects of Family Structure

Routine Leisure Activities and Adolescent Marijuana Use: Moderating Effects of Family Structure

Date: May 2010
Creator: Aksu, Gokhan
Description: How adolescents spend their time is a crucial predictor of their engagement in delinquency. Activities with peers away from direct supervision of adults are of concern as more opportunities and motivation to use marijuana exist in such situations. However, adolescents may vary in their propensity to use marijuana when faced the opportunity. Especially adolescents living with a single parent may have a higher propensity compared to those from two-parent households to use marijuana due to reduced parental monitoring and increased peer attachment. This thesis investigates the moderating effects of family structure on the routine leisure activities and adolescent marijuana use relationship, using data from Monitoring the Future Study 2007, 12th Grade Survey. The results provide partial support for the moderating effects.
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Consensus Building in Sensor Networks and Long Term Planning for the National Airspace System

Consensus Building in Sensor Networks and Long Term Planning for the National Airspace System

Date: May 2011
Creator: Akula, Naga Venkata Swathik
Description: In this thesis, I present my study on the impact of multi-group network structure on the performance of consensus building strategies, and the preliminary mathematical formulation of the problem on improving the performance of the National Airspace system (NAS) through long-term investment. The first part of the thesis is concerned with a structural approach to the consensus building problem in multi-group distributed sensor networks (DSNs) that can be represented by bipartite graph. Direct inference of the convergence behavior of consensus strategies from multi-group DSN structure is one of the contributions of this thesis. The insights gained from the analysis facilitate the design and development of DSNs that meet specific performance criteria. The other part of the thesis is concerned with long-term planning and development of the NAS at a network level, by formulating the planning problem as a resource allocation problem for a flow network. The network-level model viewpoint on NAS planning and development will give insight to the structure of future NAS and will allow evaluation of various paradigms for the planning problem.
Contributing Partner: UNT Libraries