Digital Commons Network^™

Effect Of Temperature, Hydrogen Ion Concentration, And Oxygen Tension On The Oxygen Dissociation Curves Of The Whole Blood Of Amphibians From Different Habitats, Orlando R. De Luque

Open Access Dissertations

No abstract provided.

Existence And Stability Of Permanent Waveforms In Active Distributed-Parameter Systems With Multi-Valued Nonlinearities, Quentin Charles Turtle

Open Access Dissertations

No abstract provided.

Liver Enlargement And The Modification Of Hepatic Microsomal Drug Metabolism By Pyrethrum, Angela Caretta Springfield

Open Access Dissertations

Liver enlargement in rats resulting from oral administration of pyrethrum has been observed in various laboratories. This study was undertaken to investigate the nature of this enlargement as well as resulting changes in hepatic drug metabolism. Oral administration of pyrethrum at 200 mg/kg for 13 or 23 days resulted in decreases in hepatic DNA concentrations. While total lipid concentrations were increased significantly, the increases did not account for the enlargement. Protein concentrations of whole liver homogenates, 9,000 x g supernatants and the 105,000 x g pellet were not different from controls. No significant changes occurred in hepatic water concentrations. Accompanying …

Thermodynamics Of Sulfonamide Solutions, John William Mauger

Open Access Dissertations

No abstract provided.

Thermal Neutron Focusing By Reflective Dispersion, Pranab K. Bandopadhyay

Open Access Dissertations

No abstract provided.

A Study Of The Interaction Of Atrazine With Fractions Of Soil Organic Matter, Gwo-Chen Li

Open Access Dissertations

No abstract provided.

An Investigation Of Ocean Sediments Using The Deep Ocean Sediment Probe, Lloyd Frederick Lewis

Open Access Dissertations

No abstract provided.

Synthesis And Biological Evaluation Of Selected Analogs Of Carnitine And Acetylcarnitine, Ravindra Chandravadan Vasavada

Open Access Dissertations

No abstract provided.

High Pressure Polymorphism Of Solids, Wen-Chuan Yu

Open Access Dissertations

No abstract provided.

The Kinetics Of The Bromine Photocatalyzed Positional Bond Isomerization Of 1-Butene To 2-Butenes At Low Pressures, Mohammed Yaman Samrah

Open Access Dissertations

No abstract provided.

Phytosociology Of Intertidal Algae Of Conanicut Island, Rhode Island, Martine Villalard

Open Access Dissertations

No abstract provided.

Sedimentary Environments And Processes Of The Continental Rise, Southeastof New England, Herman B. Zimmerman

Open Access Dissertations

No abstract provided.

A Study Of Point Defects In Insulators And Semiconductors, Rama Shankar Singh

Open Access Dissertations

No abstract provided.

Uniform Layer Heterojunction Targets For Television Camera Tubes-A Feasibility Assessment, James Alexander Hall

Open Access Dissertations

No abstract provided.

Effect Of Algal Exudates On Substratum Selection By Motile Telotrochs Of The Marine Peritrich Ciliate, Vorticella Marina, Gaytha Allen Langlois

Open Access Dissertations

No abstract provided.

Hydroquinone And Stilbene Derivatives Of The Genera Vaccinium And Gaylussacia (Ericaceae), Ali A. Askari

Open Access Dissertations

No abstract provided.

Infrared Reception In Boid Snakes, Paul Michael Mcilvaine

Open Access Dissertations

No abstract provided.

Thermodynamlcs Of Sulfonamide Solutions, John W. Mauger

Open Access Dissertations

The solubility of four sulfonamides in normal alcohols and in buffered aqueous systems was determined at 25°, 30° and 37° Centigrade. The solubility pathway for a nonelectrolyte solute can be described by a process which follows a two -step sequence:

Solid/solute -- 1 --> liquid/solute -- 2 --> solute in solution.

The pathway was assumed operative for the solute-solvent systems studied, and was used as a basis for the interpretation of the thermodynamic quantities associated with the dissolution process. Heats of solution and their corresponding entropies were evaluated by semilog plots of mole fraction solute concentration versus reciprocal temperature (degrees …

Measurement Of Absorption And Velocity Of Ultrasound In Liquid Alkali Metals And Their Alloys, Min Gon Kim

Open Access Dissertations

No abstract provided.

The Use Of Piezoelectric Devices For Amine Classification And Sulfur-Dioxide Detection, Martin Joseph Hartigan Jr.

Open Access Dissertations

No abstract provided.

The Effects Of Low Frequency Vibrational Stress On The Genome Of Drosophila Melanogaster, Frank P. Saitta

Open Access Dissertations

No abstract provided.

Band Structure And The Optical Constants Of Tin Telluride, Roy Frank Potter

Open Access Dissertations

No abstract provided.

The Measurement Of Wind Generated Waves In The Deep Ocean, Alfred Henry Barrett

Open Access Dissertations

Instrumentation, a stable oceanographic platform, and a data acquisition system were constructed and utilized to record wind driven ocean waves. Wave data were processed, and the results which are presented are used in a comparative study of wave recording techniques.

A system of capacitive wave staffs which indicates direct surface displacement, a dynamic pressure sensor which indicates wave height by sensing the hydrostatic pressure slightly below the ocean surface, and a microthermal probe which indicates small scale and rapid temperature fluctuations were developed. Also used in the study was a ducted impeller current meter which indicates water particle velocity. Thus …

Effect Of Acute Hypoxia Or Chronic Social Isolation On Brain Sensitivity And Barbiturate Metabolism, Irwin Paul Baumel

Open Access Dissertations

The mechanisms by which hypoxia or social isolation interact with drug action were investigated by the use of several parameters including drug-induced narcosis, convulsions, change in body temperature and various biochemical parameters.

Acute Hypoxia

Hypobaric hypoxia (364 mm Hg, 10% O₂) enhanced. the depressant effects of barbital, pentobarbital and chloral hydrate in mice and rats. Mice were far more sensitive than rats, barbital narcosis being affected to the greatest extent. Reduced oxygen (10%) at normal pressure also potentiated pentobarbital narcosis.

Hypothermia during hypoxia was greater in mice than in rats. Mice exposed to hypoxia at 30°C instead of …

The Solubility Of Amino Acids In Various Solvent Systems, Thomas E. Needham

Open Access Dissertations

The effect of varying solvent systems on the solubilities of glycine, L-alanine, L-valine, L-phenylalanine, and DL-aminooctanoic acid at z50 C. was studied. The entire concentration spectrum from pure water to pure semipolar solvent was used for each of. the solvent systems of methanol-water, ethanol-water, n-propanol water, isopropanol-water, and tertiary butanol-water. Further, the effect of pH variation on the solubilities of the amino acids in each of the solvent systems was studied. Aliquots were withdrawn from each solvent system studied and analyzed gravimetrically to determine the resultant solubility. It was found that the solubility behavior of those amino acids studied was …

Activity, Growth And Shelter Selection Of The American Lobster, John Stanley Cobb

Open Access Dissertations

No abstract provided.

The Water Economy Of American Elm Twigs Infected With Ceratocystis Ulmi, William Edward Machardy

Open Access Dissertations

No abstract provided.

A Nonlinear Model Of The Human Body In The Sitting Position Subjected To Sinusoidal Displacements Of The Seat, Robert Muksian

Open Access Dissertations

No abstract provided.

Location Of Sources Of Elf Noise In The Earth-Ionosphere Cavity By Analysis Of Schumann Spectra, John Patrick Toomey

Open Access Dissertations

No abstract provided.

Calculation Of Response Factors For The Thermal Conductivity Detector In Gas Chromatography, Eugene F. Barry Jr.

Open Access Dissertations

No abstract provided.