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Nuclear Reactions on the Palladium Isotopes

Nuclear Reactions on the Palladium Isotopes

Date: December 1970
Creator: White, Ronald Lee
Description: The problem of interest in this investigation was to determine the cross sections of five nuclear reactions which occur when irradiating natural palladium with neutrons which have energy values of 15.1, 15.9, and 16.3 MeV. The cross sections were measured relative to a copper monitor which was "sandwitched" in with the palladium target.
Contributing Partner: UNT Libraries
Nucleotide Inhibition of Glyoxalase II

Nucleotide Inhibition of Glyoxalase II

Date: May 1999
Creator: Gillis, Glen S
Description: The glyoxalase system mediates the conversion of methylglyoxal, a toxic ketoaldehyde, to D-lactic acid. The system is composed of two enzymes, glyoxalase I (Glo-I) and glyoxalase II (Glo-II), and exhibits an absolute requirement for a catalytic quantity of glutathione (GSH). Glo-I catalyzes the isomerization of a hemithioacetal, formed non-enzymatically from methylglyoxal and GSH, to the corresponding a -D-hydroxyacid thioester, s-D-lactoylglutathione (SLG). Glo-II catalyzes the irreversible breakdown of SLG to D-lactate and GSH. We have observed that ATP or GTP significantly inhibits the Glo-II activity of tissue homogenates from various sources. We have developed a rapid, one step chromatography procedure to purify Glo-II such that the purified enzyme remains "sensitive" to inhibition by ATP or GTP (Glo-II-s). Studies indicate that inhibition of Glo-II-s by nucleotides is restricted to ATP, GTP, ADP, and GDP, with ATP appearing most effective. Kinetics studies have shown that ATP acts as a partial non-competitive inhibitor of Glo-II-s activity, and further suggest that two kinetically distinguishable forms of the enzyme exist. The sensitivity of pure Glo-II-s to nucleotide inhibition is slowly lost on storage even at -80° C. This loss is accelerated at higher temperatures or in the presence of ATP. Kinetics studies on the resultant "insensitive" ...
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Nucleotide Sequence of a Bovine Arginine Transfer RNA Gene

Nucleotide Sequence of a Bovine Arginine Transfer RNA Gene

Date: May 1996
Creator: Eubanks, Aleida C. (Aleida Christine)
Description: A single plaque-pure lambda clone designated λBA84 that hybridized to a ˆ32P-labeled bovine arginine tRNA was isolated from a bovine genomic library harbored in a lambda bacteriophage vector. A 2.3-kilobase segment of this clone was found to contain an arginine transfer RNAccg gene by Southern blot hybridization analysis and dideoxyribonucleotide DNA sequencing. This gene contains the characteristic RNA polymerase III split promoter sequence found in all eukaryotic tRNAs and a potential RNA polymerase III termination site, consisting of four consecutive thymine residues, in the 3'-flanking region. Several possible cis-acting promoter elements were found within the 5'-flanking region of the sequenced gene. The function of these elements, if any, is unknown.
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Number Theoretic Analogies for Certain Theorems and Processes in the Theory of Equations

Number Theoretic Analogies for Certain Theorems and Processes in the Theory of Equations

Date: 1940
Creator: Witt, F. L.
Description: The aim of this paper is to exhibit analogs in Number Theory of certain well known theorems and methods of the Theory of Equations.
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A Numerical Method for the Calculation of the Inertial Loads on an Airplane

A Numerical Method for the Calculation of the Inertial Loads on an Airplane

Date: 1958
Creator: Williams, Glen R.
Description: This paper is an extension of various projects that the writer has been associated with at Chance Vought Aircraft, Incorporated.
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Le Nuove Musiche: Giovanni Battista Bovicelli?

Le Nuove Musiche: Giovanni Battista Bovicelli?

Date: August 2010
Creator: Gámez Hernández, Carlos
Description: This thesis is a comparative study on the late 16th century manuals of ornamentation by Girolamo Dalla Casa, Giovanni Bassano, Riccardo Rognoni, and Giovanni Battista Bovicelli. The study demonstrates that the latest Renaissance manual should be given more credit for the innovative ornamentation style that was to come in the Early Baroque era. Bovicelli's use of sequence, dissonances, and less moving notes for more rhythmic varieties are features most often associated in the style of the Baroque. Unfortunately, the topic of ornamentation in the late Renaissance is most commonly discussed as a group of different entities writing in the same style. The research for this paper is intended to separate the manuals of the late Renaissance, focusing on the separate styles that led to the work of Giovanni Battista Bovicelli.
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Nutritional Labeling on Menus in Full-Service Restaurants: Consumer Attitudes and Intended Usage

Nutritional Labeling on Menus in Full-Service Restaurants: Consumer Attitudes and Intended Usage

Access: Use of this item is restricted to the UNT Community.
Date: August 2005
Creator: Foster, Charles R.
Description: Dining out has become an important part of the American lifestyle, greater frequencies as well as increased portion sizes have led to concern. The number of Americans that are classified as overweight or obese has also increased considerably, and the foodservice industry has become a target. Mandatory labeling of menu items has been avoided to this point, but the subject has moved to the forefront and continues to be debated. This study surveyed 502 patrons at a student-run restaurant in Texas. Respondents provided information concerning their health and dining habits as well as their attitudes toward and intended usage of nutritional information (NI) on menus in full-service restaurants. Gender, education levels, age, and household income affect the attitudes toward and intended usage of NI. Exercise frequency, the current use of nutritional information on packaged foods, and the practice of healthy eating habits are all related to the intended use of NI while dining out.
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Obligately Thermophilic Nitrogen-Fixation in Some Soil Bacteria

Obligately Thermophilic Nitrogen-Fixation in Some Soil Bacteria

Date: August 1971
Creator: Milam, Mary
Description: In the work presented here, it is claimed that bacteria have been isolated which are capable of growth at high temperatures utilizing molecular nitrogen as their sole nitrogen source. Soil bacteria were isolated which grew at 55 C in nitrogen-free media. They were found to be obligatory thermophiles in nitrogen-free media and facultative thermophiles in media containing organically bound nitrogen.
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Obra Dramatica de Manuel Ortiz de Pinedo

Obra Dramatica de Manuel Ortiz de Pinedo

Date: August 1965
Creator: Rojas, Guillermo
Description: This work studies the arguments of eleven of Manuel Ortiz de Pinedo's works, which the author considers as a matter of research and worthy of criticism and analysis on everything related to their themes, characters and resources used by the playwright.
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Las Obras de Carlos Fuentes

Las Obras de Carlos Fuentes

Date: January 1966
Creator: Garcia, Lino, Jr.
Description: This thesis considers the novels of Carlos Fuentes from a thematic point of view, as well as looking at the place of the writer in Mexican narrative tradition. It also presents a brief history of the Mexican novel.
Contributing Partner: UNT Libraries