Index Catalog // ScholarsArchive@OSU

Distribution and taxonomy of the small pocket gophers of northwestern Oregon

Creator:: Walker, Kenneth Merriam
Resource Type:: Dissertation

Growth, fabrication and modeling of pseudomorphic laser diodes

Creator:: Ebner, John
Abstract:: This thesis reports on the crystal growth, fabrication, modeling and performance of Graded Index-Separate Confinement Heterostructure laser diodes which contain pseudomorphic InGaAs as the active region material. Laser epitaxial layers were grown with different indium mole-fractions, and a constant InGaAs layer thickness of 10 nm, on both sides of the...
Resource Type:: Dissertation
Full Text:: layers were grown with different indium mole-fractions, and a constant InGaAs layer thickness of 10 nm

The synthesis and electrocyclization of some linear and cross-conjugated hexatrienes

Creator:: Hilton, Charles Bruce
Abstract:: As part of the continuing investigation of the thermal cis- 1, 3, 5-hexatriene to 1,3-cyclohexadiene rearrangement, four new trienes and a cross-conjugated pentaene have been prepared and their thermal reactions studied. A new route to the synthesis of highly substituted trienes has been developed. The synthesis of three of these...
Resource Type:: Dissertation
Full Text:: and forbidden concerted reac- tiontion from 49 kcal/mole to 13.6 kcal/mole. This essentially amounts

The purification and characterization of the fructose-1, 6-diphosphate aldolase from Bacillus stearothermophilus (NCA 2184)

Creator:: Quinn, Richard Paul
Abstract:: The thermophilic aldolase from Bacillus stearothermophilus (NCA 2184) has been purified to a specific activity of 45.5 μ-moles of fructose-1, 6-diphosphate cleaved per minute per mg of enzyme, representing a 624-fold increase over the crude extract. The preparation appeared to be homogenous by sedimentation velocity ultra-centrifugation and by a specific...
Resource Type:: Dissertation
Full Text:: in the presence of sub- strate.strate. The K (1.1 x 10 M) and Vmax (4650 moles of substratem

Habitat utilization by spotted owls in the West-Central Cascades of Oregon

Creator:: Forsman, Eric D.
Abstract:: Eight adult spotted owls (Strix occidentalis) on the west slope of the Cascade Range in Oregon were fitted with radio transmitters and observed for periods ranging from 271 to 383 days. Mean home range size for the owls was 1,177 ha (range = 920-1,376 ha). There was no significant difference...
Resource Type:: Dissertation
Full Text:: gopher (Thomomys mazama), snowshoe hare (Lepus americanus), and bushy- tailed woodrat (Neotoma cinerea

Spectrophotometry of molybdenum, tungsten and chromium chelates of quercetin

Creator:: Mitchell, Lloyd James
Abstract:: Quercetin (3, 3', 4', 5, 7-pentahydroxyflavone) reacts with hexavalent molybdenum, tungsten and chromium to form chelates soluble in an ethanol-water medium. This color reaction has been investigated with a view to its possible application in the spectrophotometric determination of trace amounts of these metals. In the development of the method,...
Resource Type:: Dissertation
Full Text:: chloride where the ratio is two moles of quercetin per mole of alumi- num chloride. Dowd reported a value

A double-stranded secondary structure for hyaluronic acid in aqueous-organic solvent as revealed by vacuum ultraviolet circular dichroism

Creator:: Staskus, Paul
Abstract:: The association of hyaluronic acid (HA) into a double stranded structure has been investigated by circular dichroism (CD) spectroscopy into the vacuum ultraviolet region. The CD of HA changes dramatically, monitoring a cooperative transition as the dielectric constant of an aqueous solution is reduced by adding organic solvents. This structural...
Resource Type:: Dissertation
Full Text:: THE THESIS OF Paul Staskus for the degree of Doctor of Philosophy in Biochemistry and Biophysics

Kinetics of thermal decomposition of tungsten hexacarbonyl

Creator:: Knapp, Samuel Boyd
Abstract:: The thermal decomposition of tungsten hexacarbonyl was investigated in an apparatus which allowed a solid sample of the material to be sealed into a preheated batch reactor. Because the reaction occurs with an increase in the number of moles of gas, it was possible to monitor the progress of the...
Resource Type:: Dissertation
Full Text:: factors were 39.6 to 45. 8 kilo- calories per gram mole and 10 13, 7 to 10 15. 8 per second

The conversion of some monoalkylhydrazines to their corresponding hydrocarbons by a hepatic microsomal enzyme system in rat

Creator:: Prough, Russell A.
Abstract:: An aspect of the metabolism of monoalkylhydrazines has been investigated using both intact rats and rat liver microsomal enzyme preparations. Intact rats respired propane and n-butane on administration of 0.3-0.5 mmoles of isopropyl- and n-butylhydrazine, respectively. Based upon dose administered, a five to ten percent yield of hydrocarbon was obtained....
Resource Type:: Dissertation
Full Text:: aspect of the metabolism of monoalkylhydrazines has been investigated using both intact rats and rat

Glutamate dehydrogenase : I.Flourescence polarization studies of the self-association. II.Flourescence and circular dichroism studies of the heterotropic interactions

Creator:: Malencik, Dean Anthony
Abstract:: Fluorescence polarization measurements on beef liver glutamate dehydrogenase conjugated with pyrene butyric acid demonstrate that the association of the enzyme is adequately described by a reversible indefinite association with a single equilibrium constant. The data obtained with protein concentrations up to 0.7 mg/ml in 0.05 M potassium phosphate, pH 7....
Resource Type:: Dissertation
Full Text:: dilution. The labeling varied between 0.15 and 0.4 moles PBA/mole protein. The range in points encompasses

Studies in food science for industrial applications : Chemical and sensory analysis of fermented cucumbers; insoluble chitosanpolyacrylic acid complexes

Creator:: Chavasit, Visith
Abstract:: Pediococcus cerevisiae, Lactobacillus casei, Lactobacillus plantarum, Leuconostoc mesenteroides, Lactococcus diacetylactis Bifidobacterium bifidum, Leuconostoc oenos, and mixed cultures of Propionibacterium shermanii and P. cerevisiae were used to ferment cucumber juice brine (CJB) at 22-26°C for 1.5 months. Sugar utilization ranged from 14.6 to 86.1%. pH of the fermented CJB ranged from...
Resource Type:: Dissertation
Full Text:: -Polyacrylic Acid Chitosan and polyacrylic acid mixtures were prepared in different mole

Isolation and characterization of some oxidizing enzymes of the McFarlin cranberry

Creator:: Chan, Harvey T., 1940-
Abstract:: Due to the scarcity of information concerning the oxidase systems in cranberries the peroxidase, catalase, and polyphenolase systems, which are used as biochemical indexes of adequacy for enzyme inactivation in other fruits and vegetables, were investigated. Enzyme extracts were prepared from acetone powders with and without phenol-binding agents such as...
Resource Type:: Dissertation
Full Text:: the DOCTOR OF PHILOSOPHY (Name) (Degree) /(Dat in Food Science and Technology presented on

Preparation and properties of poly-L-tyrosyl acetamidinated ribonuclease

Creator:: Lynn, Jackson
Abstract:: Polypeptidyl derivatives of bovine pancreatic ribonuclease (RNase) containing two or three tyrosine chains with an average of two to three residues per chain have been prepared. The effects of various perturbants such as neutral salts, ethanol, urea and guanidine hydrochloride on the thermal transition of the derivatives have been studied....
Resource Type:: Dissertation
Full Text:: when 5O moles of valine were attached per mole of chlzmotrlpsin (Stracher and Becker, 1959). Tr,vo

The effect of hexachlorophene and related compounds on torula yeast glucose-6-phosphate dehydrogenase and some other dehydrogenase enzymes

Creator:: Wang, Jun-Lan
Abstract:: Low concentrations of hexachlorophene (HCP) inhibit a number of pyridine nucleotide-linked dehydrogenase enzymes. The I₅₀ HCP concentrations were 105 μM for pig heart isocitrate dehydrogenase (ICD), 65 μM for horse liver alcohol dehydrogenase, 39 μM for torula yeast glucose-6-phosphate dehydrogenase (G6PD), 6.0 μM for beef heart malate dehydrogenase, and 1.6...
Resource Type:: Dissertation
Full Text:: gradient ultracentrifugation and electrophoresis. Maximum binding of 52 moles of HCP to each mole of G6PD

Controlled potential coulometry in non-aqueous solvents--application to the Karl Fisher determination of water and to aromatic nitro compounds in dimethyl-sulfoxide

Creator:: Lindbeck, Melven Raymond
Abstract:: Aromatic Nitro Compounds. The n-values for the reduction of the isomers of nitrophenol and nitrobenzoic acid and for several other nitro compounds are determined in dimethylsulfoxide by controlled potential coulometry. A procedure is given in which one mole of nitro compound may be determined with errors of less than one...
Resource Type:: Dissertation
Full Text:: mole of the nitro compound was then added to the working compartment, and the solution was

Biochemical, molecular and physiological characterization of 1-butanol dehydrogenases of Pseudomonas butanovora in butane and 1-butanol metabolism

Creator:: Vangnai, Alisa S.
Abstract:: Butane-grown Pseudomonas butanovora oxidized butane by a soluble butane monooxygenase through the terminal pathway yielding 1 -butanol as the predominant product. Alcohol dehydrogenases (ADHs) involved in butane oxidation in P. butanovora were purified and characterized at the biochemical, genetic and physiological levels. Butane-grown P. butanovora expressed a type I soluble...
Resource Type:: Dissertation
Full Text:: purified to near homogeneity and characterized. BDH is a monomer of 66 kDa consisting of one mole of

Cherry phytochemicals

Creator:: Chaovanalikit, Arusa, 1974-
Abstract:: The distribution of anthocyanin pigments and polyphenolics of sweet (Prunus avium) and sour cherries (Prunus cerasus) were determined by Ultraviolet- Visible (UV-Visible) spectrophotometry and High Performance Liquid Chromatography with photodiode array detector (HPLC-DAD). Their antioxidant properties were determined by Oxygen Radical Absorbance Capacity (ORAC) and Ferric Reducing Antioxidant Power (FRAP)....
Resource Type:: Dissertation
Full Text:: (18.5 jimoles TE/g), peaches (7.6 ^moles TE/g), pears (5.9 (imoles TE/g), and apples (5.6 ^moles TE/g

The β-glucosidase system of the thermophilic fungus Chaetomium thermophile

Creator:: Lusis, Aldons Jekabs
Abstract:: The thermophilic fungus Chaetomium thermophile was shown to contain three major β-glucosidases, a cell-bound cellobiase, a cellbound aryl-β-glucosidase and an extracellular aryl-β-glucosidase. The enzymes were partially purified and studied with respect to thermal stability and certain kinetic parameters. Two of the β-glucosidases are fairly stable at the maximum growth temperature...
Resource Type:: Dissertation
Full Text:: large tyrosine and tryptophan content and an energy activationof 9. 4 Kcal per. mole. The p

The system sulfuryl chloride-sulfur dioxide-chlorine. Equilibrium and catalysis kinetics studies

Creator:: Jischke, John Henry
Abstract:: A spectrophotometric study has been made of catalysis of the decomposition of sulfuryl chloride in carbon tetrachloride solution to an equilibrium mixture of sulfuryl chloride, sulfur dioxide and chlorine. The catalysts were activated charcoal, acetonitrile and 18-crown-6 polyether. A weak acetonitrile-sulfur dioxide complex also was established; formation constants found at...
Resource Type:: Dissertation
Full Text:: [S02C12][crown ether] , with activation parameters Ea = 25.7 Kcal/mole, A = 3.2 x 1019 sec M-1 and 6,S

Some biochemical studies of phenylmercuric acetate and mercuric acetate toxicity in rats

Creator:: Ellis, Robert William
Abstract:: Biochemical studies of phenylmercuric acetate (PMA) and mercuric acetate toxicity in rats carried out during this investigation were (1) the metabolism of ²⁰³Hg(Ac)₂ and ²⁰³Hg-PMA within kidney and liver tissues following oral ingestion, (2) the effect on some soluble enzyme activities and determinations of ²⁰³Hg binding in the enzyme fractions,...
Resource Type:: Dissertation
Full Text:: bindings were around 0.32 and 0.50 mole Hg/mole protein in the LDH fraction for Hg(Ac)2 and PMA

An investigation of the crystal growth of the heavy metal sulfides in supercritical hydrogen sulfide

Creator:: Lewis, Leroy Crawford
Abstract:: Solubility studies on the heavy metal sulfides in liquid hydrogen sulfide at room temperature were carried out using the isopiestic method. The results were compared with earlier work and with a theoretical result based on Raoult's Law. A relative order for the solubilities of sulfur and the sulfides of tin,...
Resource Type:: Dissertation
Full Text:: number of moles of A that will saturate one mole of solvent and SB be the number of moles of B that

Low temperature thermal analysis of some boron halide complexes with weak Lewis bases

Creator:: Lerch, Ronald Edwin
Abstract:: Thermal analysis was used to investigate the following seven systems: H₂S-B₂F₄, SOF₂-B₂F₄, COC1₂-B₂F₄, SF₄-B₂F₄, Xe-BF₃, NF₃-BF₃, and NF₃-BC1₃. In two of the seven systems compound formation was observed. In the system, H₂S-B₂F₄ the compounds H₂S[superscript .]B₂F₄ and 2H₂S[superscript .]B₂F₄ are formed. The compound H₂S[superscript .]B₂F₄ has a melting point of...
Resource Type:: Dissertation
Full Text:: . The system has three eutectics at 16. 2, 35. 2 and 50.5 mole percent B2F4 and at -107.4 t 0. 3° C

The development of Phytophthora cactorum as a model system for the study of sterol metabolism

Creator:: Gonzales, Robert A.
Abstract:: Phytophthora cactorum lacks sterol synthesis capability. Nevertheless, it exhibits vegetative growth in the total absence of sterol. Supplementation of the growth medium with sterol, however, resulted in a three-fold increase in cell yield. This increase was shown by whole cell and cell free experiments to be the consequence of altered...
Resource Type:: Dissertation
Full Text:: substrate and sub- tracted as background. Enzyme activity was reported as ;mole NADH oxidized per minute

A mathematical model for adsorptive bubble-separation processes

Creator:: T'ang, Li
Abstract:: Adsorptive bubble-separation processes are used to remove adsorptive contaminants from wastewater. A mathematical model was developed for the adsorptive bubble separation processes in a countercurrent column. The model included an assumption that linear adsorption of the solute occurred on the gas bubbles. Predictions indicated that aqueous column height has less...
Resource Type:: Dissertation
Full Text:: and experimental data with respect to column height. Five column heights ranged from 30 to 100 cm

Deoxyribonucleic acid hybridization and plasmid studies in the genus Lactobacillus

Creator:: Sriranganathan, Nammalwar
Abstract:: Using thermal denaturation methodology, the nucleic acid base composition of deoxyribonucleic acid (DNA) isolated from type, neotype and stock strains of Lactobacillus species was determined. The genus was found to be heterogeneous in base composition, ranging from 33.1 to 50.0 moles % guanine plus cytosine (GC). Genus members fell into...
Resource Type:: Dissertation
Full Text:: 44. 0 and 48. 0 moles %: L. plantarum, L. rhamnosus (human isolate) and L. casei var. casei. Group

Solid-vapor equilibria of hafnium and zirconium tetrachlorides

Creator:: Landsberg, Arne
Abstract:: The chemically similar elements hafnium and zirconium occur together in nature. Because of their very dissimilar nuclear properties it is of commercial importance to separate them for use in the atomic energy field. One or more of the steps in the separation and purification processes presently used involve the volatile...
Resource Type:: Dissertation
Full Text:: Solid-Vapor Equilibria of Hafnium and Zirconium

A study of ticks (Acarina: Ixodidae) and chiggers (Trombiculidae) from two areas in western Oregon

Creator:: Easton, Emmett Richard
Abstract:: A study of the host range and distribution of ticks and chiggers (Acari) was undertaken in two contrasting forested areas of western Oregon. Acarines were sampled from host mammals which were trapped along line transects laid out in both areas, each consisting of 18 stations 50 feet apart. Hosts were...
Resource Type:: Dissertation
Full Text:: shrew-mole in this study. None was collected from other moles although heavy parasitiza- tion by

Carbohydrate and photosynthate distribution and nitrogen fixation in beans (Phaseolus vulgaris L.)

Creator:: Waters, Luther
Abstract:: A series of four studies were conducted in Colombia, South America, in the field and the greenhouse to determine the effect of plant competition and mulching on carbohydrate and photosynthate distribution and nitrogen fixation in beans (Phaseolus vulgaris L.). Mulching beans (determinant growth habit) with rice hulls in the lowland...
Resource Type:: Dissertation
Full Text:: : CARBOHYDRATE AND PHOTOSYNTHATE DISTRIBUTION AND NITROGEN FIXATION IN BEANS (Phaseolus vulgaris L.) Abstract

Specific enzymic interactions relating to the mechanism of action on certain 2-chloroethyl nitrosoureas

Creator:: Babson, John Robert
Abstract:: Certain 2- chioroethyl nitrosoureas have been demonstrated to be highly specific inactivators of chymotrypsin in vitro and glutathione reductase, both in vivo and in isolated rat hepatocytes. The inactivation of glutathione reductase in isolated hepatocytes resulted in an increased sensitivity toward an adriamycin induced oxidative challenge. Prolonged incubation of 1-(2-chloroethyl)-3-([1-¹⁴...
Resource Type:: Dissertation
Full Text:: complementarity between the inhibitor mole- cule and the binding site at or near the catalytic site of the

Kinetics of synthesis and degradation of chicken liver xanthine dehydrogenase

Creator:: Epstein, Arnold
Abstract:: The role of synthesis and degradation in controlling enzyme concentrations was studied. Concentrations of chloride and arginine were determined for blood and liver at various stages of development from the embryo to the 8 day old chicken. The chloride concentrations were used to obtain the volume of extracellular blood in...
Resource Type:: Dissertation
Full Text:: x 10 12 and. 0.8x 10-12 moles XDH per minute per gram of liver for the 8 day chick, 1 day chick and

The metabolism of vitamin B₆ in humans and guinea pigs

Creator:: Wozenski, Janet Regina
Abstract:: The purposes of the research presented in this thesis were: (1) to determine the precision with which it is possible to measure changes in vitamin B6 compounds in the blood and urine following oral doses of levels of vitamin B6 (as pyridoxine) which are in the range of the normal...
Resource Type:: Dissertation
Full Text:: the degree DOCTOR OF PHILOSOPHY in FOODS AND NUTRITION presented on ' June 24

Nonthermal Plasma Microreaction Engineering for Gas and Liquid Processing

Creator:: Pommerenck, Justin
Abstract:: Atmospheric pressure plasma is non-thermal at millimeter to micrometer separations. It represents an alternative low exergy initiator of many chemical reactions. In many instances heat, light or sound are not efficient providers of the necessary energy to overcome chemical activation barriers. The focus of this research is applying dc nonthermal...
Resource Type:: Dissertation
Full Text:: . Title: Nonthermal Plasma Microreaction Engineering for Gas and Liquid Processing. Abstract

Conformation and reactivity studies of some bicyclo(3.3.1) nonane derivatives

Creator:: Sturmer, David Michael
Abstract:: New syntheses for 2-bicyclo(3.3.1)nonanone and 7-bicyclo-(3.3.1)nonen-2-one were developed. The saturated ketone was prepared from phenol and acrylonitrile via a novel intramolecular S[subscript N]2 cyclization process. A Friedel-Crafts cyclization of 3-(3-cyclohexenyl)propanoyl chloride permitted synthesis of the unsaturated ketone from 4-cyclohexene carboxaldehyde. The formation of the bicyclo(3.3.1)nonane rather than a bicyclo(3.2.2)nonane skeleton...
Resource Type:: Dissertation
Full Text:: Conformation and Reactivity Studies of Some Bicyclo(3,3,1

Effects of clearcutting a Douglas-fir stand upon small animal populations in western Oregon

Creator:: Hooven, Edward F. (Edward Frank)
Abstract:: An ecological study of small forest mammals was conducted from 1964 to 1970. The objectives were to obtain chronological information relative to the effects of current logging practices on vegetational succession and small mammal populations. The locale of the study was in the west-central Cascade Mountains of Oregon. The principal...
Resource Type:: Dissertation

Generalized Preconditioning to Accelerate Simulations with Large Multiphase Chemical Kinetics Models

Creator:: Walker, Anthony S.
Abstract:: Combustion emissions produced from burning real transportation fuels have many environmental impacts. However, detailed chemistry across multiple phases, time scales, and thermodynamic conditions make predicting combustion emissions challenging. Detailed modeling of the gas phase alone is prohibitively expensive, due to the large size and stiffness of the kinetic models. The...
Resource Type:: Dissertation
Full Text:: of diatomic hydrogen and water in the well-stirred reactor over time. 42 3.3 Moles of diatomic

Characterization of the role of the 3' noncoding region of turnip yellow mosaic virus RNA

Creator:: Tsai, Ching-Hsiu
Resource Type:: Dissertation
Full Text:: loop of the tRNA-like structure and the potential pseudoknot of TYMV RNA to characterize the roles of

Thermally activated electrochemical cells using a stabilized zirconia electrolyte

Creator:: Clark, Dwight Pocock
Abstract:: The performance of solid metallic anodes on a solid electrolyte was determined experimentally and data on cell current, cell voltage, open-circuit cell potential, and cell energy are presented. Fifteen-mole percent calcia-stabilized zirconia was used as the electrolyte, a platinum-oxygen electrode was used as the cathode, and 1000° C was the...
Resource Type:: Dissertation
Full Text:: and data on cell current, ceIl voltage, open-circuit celI potential, and cell energy are presented

A study of the decomposition of murexide

Creator:: Moser, James Howard
Resource Type:: Dissertation
Full Text:: correspond to 2, 5 and 10 moles of Ca per mole murexide for 100 m. murexide, respectively. The data are

The estimation of glucose pathways in Saccharomyces cerevisiae by the catabolic rate method

Creator:: Jacobsen, Donald Weldon
Abstract:: Existing methods for the estimation of relative participation of glucose catabolic pathways make use of yield data of respiratory ¹⁴CO₂ or intermediary ¹⁴C products derived from glucose substrates specifically labeled with ¹⁴C. Cumulative yields of respiratory ¹⁴CO₂ observed at the end of time course of complete substrate utilization are analyzed...
Resource Type:: Dissertation
Full Text:: catabolic pathways such as glycolysis and the Entner- Doudoroff path- way are obtained by difference. In

Some electrochemical properties of the vanadium pentoxide electrode

Creator:: Newby, Kenneth Russ
Abstract:: Vanadium pentoxide single crystals were grown from the melt. These crystals were made the cathode in an electrolytic cell and the polarization and recovery of the electrode were studied under a variety of experimental conditions. A study of the electrode potential versus that of the standard hydrogen electrode as a...
Resource Type:: Dissertation
Full Text:: cathode in an electrolytic cell and the polarization and recovery of the electrode were studied under a

The autoxidative degradation of some secondary products of autoxidizing lipids

Creator:: Lillard, Dorris Alton
Abstract:: Food lipid systems are very complex and so is oxidative degradation that render them unpalatable for human consumption. The significance of lipid degradation and the key reactions involved have been thoroughly studied and are well understood today. This is not true, however, of the secondary products of the autoxidation reactions....
Resource Type:: Dissertation
Full Text:: . Samples which had consumed 0. 25 and 0. 5 moles of oxygen per mole of sample were analyzed for

Studies on the inhibition of bovine plasma amine oxidase by hydrazines

Creator:: Hucko-Haas, Jacqueline Elizabeth
Abstract:: Several aspects of the potent inhibition of bovine plasma amine oxidase (PAO) by hydrazines were investigated by kinetic and preparative means. The inhibition was classified as pseudo-irreversible by the method of Ackerman and Potter (Proc. Soc. Exptl. Biol. Med. 72, 1 (1949), and was found to exhibit Zone B kinetic...
Resource Type:: Dissertation
Full Text:: mole ratio, UDMH/E, was 9. 66 in both experiments and substrate concentration was 3. 33 mM. In

Description of the plant communities and succession of the Oregon coast grasslands

Creator:: Ripley, James Douglas
Abstract:: In an effort to describe the plant communities and succession of the Oregon coastal grasslands, vegetation and environmental data were collected from 75 stands at 24 separate locations ranging from Cape Falcon in Tillamook County to Cape Ferrelo in Curry County. The vegetation data consisted of cover and frequency values...
Resource Type:: Dissertation
Full Text:: , Townsend mole, coast mole, Beechey ground squirrel, Mazama pocket gopher, deer mouse, long-tailed vole

Purification and characterization of a cytoplasmic apyrase plumules of Pisum sativum

Creator:: Nishikawa, Alfred Hirotoshi
Abstract:: The 105,000 x g supernatant fluid (S[subscript HS]) from extracts of pea seedlings (Pisum sativum, var. Alaska) etiolated for 60 hours yielded a very potent adenosine triphosphatase activity. This activity was designated as an apyrase when the reaction stoichiometry indicated that adenosine triphosphate (ATP) was hydrolyzed to adenosine monophosphate (AMP)...
Resource Type:: Dissertation
Full Text:: enzyme catalyzes the hydro- lysis of ATP to one mole of adenylic acid (AMP) and two moles of inor

Physiological, biochemical, and genetic studies on the [delta]²⁴ sterol methyltransferase of Saccharomyces cerevisiae

Creator:: McCammon, Mark Thomas
Abstract:: The role of the yeast S-adenosylmethionine: Δ²⁴-sterol-C-methyltransferase (SCMT) in sterol metabolism was investigated. Structural analogs of S-adenosylhomocysteine were tested for inhibition of the SCMT enzyme. A wide inhibitory range by these compounds was observed, indicating which structural features of the parent compound are important for binding to the enzyme. The...
Resource Type:: Dissertation
Full Text:: Physiological, biochemical, and genetic studies on the

Atrazine, terbutryn and GS-14254 adsorption, desorption and solubility in salt solutions and movement in soil materials

Creator:: Gaynor, John Donald
Resource Type:: Dissertation
Full Text:: molarity of the ion species (moles/1) and Z is the valence of the cation or anion, was used to calculate

Calcium metabolism and regulation in larval Rana catesbeiana

Creator:: Pennington, Janet
Abstract:: Calcium concentration and its regulation was examined in tissues of larval Rana catesbiana. Considerable variability was found in tissue calcium that could not be explained by stage of development. A seasonal effect was observed, with plasma calcium decreasing and muscle calcium increasing during winter. Total plasma calcium concentration reflects, within...
Resource Type:: Dissertation
Full Text:: . Influx and efflux after about four hours are usually about 0. 1 p,moles Ca/hour-10 10 g animal. Analysis

Host range and chemical composition of lactic streptococcal bacteriophages

Creator:: Henning, David Ralph
Abstract:: Comparisons were made of the abilities of Streptococcus lactis, Streptococcus cremoris and Streptococcus diacetilactis bacteriophages to endure various laboratory isolation and storage treatments. Neutralization of Cottage cheese whey containing phages offered no survival advantage over unneutralized samples, refrigeration of neutral and acid whey samples increased the survival of only the...
Resource Type:: Dissertation
Full Text:: Host range and chemical composition of lactic

Removal of cadmium ions by porous chitosan beads : effects of acylation & crosslinking on material properties and adsorption isotherms

Creator:: Hsien, Tzu-Yang
Resource Type:: Dissertation
Full Text:: -NH2 groups within the gel bead X, moles of glutaric dialdehyde crosslinked per total mole of -NH2

The effect of impurities on the gamma-ray coloration of potassium chloride crystals

Creator:: Hinks, David George
Abstract:: The incorporation of europium and dysprosium in potassium chloride crystals was investigated. The crystals were prepared by the Kyropoulos method from melts containing the rare-earth chlorides. The concentration of these rare-earth ions in the crystals was determined by neutron-activation analysis. The distribution coefficient of europium and dysprosium between the molten...
Resource Type:: Dissertation
Full Text:: approved: Redacted for Privacy Allen B. Scott The incorporation of europium and dysprosium in potassium

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