You limited your search to:

  Partner: UNT Libraries
Colonial Variations of a Mucoid Strain of Staphylococcus Aureus

Colonial Variations of a Mucoid Strain of Staphylococcus Aureus

Date: June 1963
Creator: Liston, Winston Bryan
Description: It was the purpose of the present investigation to demonstrate the selection of a variant of one strain of Staphylococcus aureus by altering certain environmental factors, and to study that variant as to biochemical activities and capsule formation.
Contributing Partner: UNT Libraries
Older Workers: Disability And Employment

Older Workers: Disability And Employment

Date: December 2011
Creator: Litle, Melanie A.
Description: The purpose of this study was to explore the demographic variables, typical vocational services, and competitive employment rates of older workers, ages 40 - 69 years of age, with disabilities using the RSA-911 database. The results describe the types of services received and the competitive employment outcomes for state and federal vocational rehabilitation consumers receiving services in 2009. Furthermore the sample of older workers (N = 1,152) was equally stratified into three age groups. Older workers, aged 60 to 69, had higher levels of education, received more types of vocational services, and were competitively employed at a much higher rate than those in the other age groups. The methods, discussion, study limitations, and recommendations for future research are presented.
Contributing Partner: UNT Libraries
Ethnophenomenological Influence and Levels of Psychological Differentiation

Ethnophenomenological Influence and Levels of Psychological Differentiation

Date: August 1967
Creator: Litman, Gloria R.
Description: The purpose of this study was to investigate the relative levels of psychological differentiation in Jewish and Protestant children.
Contributing Partner: UNT Libraries
Genetic Analysis of Development and Behavior in Hypoxia and Cellular Characterization of Anoxia Induced Meiotic Prophase Arrest in Caenorhabditis Elegans

Genetic Analysis of Development and Behavior in Hypoxia and Cellular Characterization of Anoxia Induced Meiotic Prophase Arrest in Caenorhabditis Elegans

Date: August 2011
Creator: Little, Brent Ashley
Description: It was hypothesized that chronic hypoxia will affect various biological processes including developmental trajectory and behavior. To test this hypothesis, embryos were raised to adulthood in severe hypoxic environments (0.5% O2 or 1% O2, 22°C) and analyzed for survival rate, developmental progression, and altered behaviors. Wildtype hermaphrodites survive chronic hypoxia yet developmental trajectory is slowed. The hermaphrodites raised in chronic hypoxia had different phenotypes in comparison to the normoxic controls. First, hermaphrodites exposed to chronic hypoxia produced a significantly lower number of embryos and had a slight increase in male progeny. This suggests that chronic hypoxia exposure during development affects the germline. Second, animals raised in chronic hypoxia from embryos to young adults have a slight increase in lifespan when re-exposed to a normoxic environment, indicating that chronic hypoxia does not negatively decrease lifespan. Finally, hermaphrodites that were raised in hypoxia will lay the majority of their eggs on the area of the agar plate where the bacterial lawn is not present. This is in contrast to animals in normoxia, which lay the majority of their eggs on the bacterial lawn. One hypothesis for this hypoxia-induced egg-laying behavior is that the animal can sense microenvironments in hypoxia. To examine if ...
Contributing Partner: UNT Libraries
An Analysis of the Problem of the Insecurity of Children

An Analysis of the Problem of the Insecurity of Children

Date: June 1939
Creator: Little, Edith
Description: This study is an attempt to find causes and indications of insecurity in elementary school children. Possible solutions and ways to increase security are also explored.
Contributing Partner: UNT Libraries
Effects of Selected Phytohormones on the Growth and Morphology of Escherichia Coli

Effects of Selected Phytohormones on the Growth and Morphology of Escherichia Coli

Date: January 1968
Creator: Little, Lynn Mallory
Description: The present investigation was undertaken as a preliminary study to learn the response of Escherichia coli cells grown under identical experimental conditions to various concentrations of indoleacetic acid, gibberellic acid, and kinetin alone, and in combination with one another.
Contributing Partner: UNT Libraries
The Airline Industry of the United States, 1940-1946

The Airline Industry of the United States, 1940-1946

Date: 1948
Creator: Little, Sam Jones, Jr.
Description: The writer purposes in this study to make a survey of the airline industry in the United States from 1940 through 1946. Various phases of the development and present status of air commerce are to be dealt with, including historical growth of the airline industry, the present significance of air transportation in the nation, the federal regulation of airplanes, problems and services involved in commercial air transportation, the operation of airlines, and the future of air transportation.
Contributing Partner: UNT Libraries
The Jacobins and the French Revolution

The Jacobins and the French Revolution

Date: 1953
Creator: Littlefield, Robert L.
Description: This thesis is a study of the Jacobins and the French Revolution.
Contributing Partner: UNT Libraries
Nature in William Cullen Bryant's Poetry

Nature in William Cullen Bryant's Poetry

Date: 1943
Creator: Littlejohn, Neva Jewell
Description: The purpose has been to discover from the study of Bryant's life and poetry the extent to which his work was influenced by nature and how he interpreted it.
Contributing Partner: UNT Libraries
Transition Metal Mediated C-o Bond Cleavage: From Co2 Activation to Lignin Degradation

Transition Metal Mediated C-o Bond Cleavage: From Co2 Activation to Lignin Degradation

Date: August 2013
Creator: Liu, Cong
Description: CO2 activation and conversion mediated by transition metal (TM) catalysts were investigated. Homogeneous catalysis of the reverse water gas shift reaction CO2+H2→H2O+CO was studied as a means to reduce CO2. β-diketiminato metal models L'MI ( L' =C3N2H5-; M = first-row TMs) were considered as potential catalysts. The thermodynamics of prototypical reaction pathways were simulated using B3LYP/aug-cc-pVTZ. Results show that middle series metal complexes result in more thermodynamically favorable properties; therefore, more detailed thermodynamic and kinetic studies were carried out for Mn, Fe, and Co complexes. On the other hand, heterogeneous catalysis of the reduction of CO2 to CO was carried out on Fe, Co, Ni, and Cu surfaces, using the PBE functional. Reaction barriers were calculated using the climbing image nudged elastic band method. Late 3d and 4d transition metal ion (Fe, Co, Ni, Cu, Ru, Rh, Pd, and Ag) mediated activation of dimethyl ether was studied to investigate the intrinsic catalytic properties of metals for C-O bond cleavage. A set of density functional theory (DFT) methods (BLYP, B3LYP, M06, M06-L, B97-1, B97-D, TPSS, and PBE) with aug-cc-pVTZ basis sets was calibrated with CCSD(T)/CBS calculations on reaction energies and barriers.
Contributing Partner: UNT Libraries