Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 26 for “"hydrogen-ion concentration"”.
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The effect of protein and hydrogen ion concentration on the activity of rabbit muscle 5'-amp aminohydrolase
Thesis (M.S.)--Michigan State University. Dept. of Biochemistry, 1971
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An investigation of optical methods for the mapping of microgradients of hydrogen-ion concentration within dental biofilms
… Following attachment, they form three-dimensional, complex and highly-integrated microbial communities. Despite their complexity and natural fluctuations in environmental parameters, in health, these communities remain relatively stable over time. This stability is termed microbial …
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The effect of temperature, time and hydrogen ion concentration on the colorfastness of a household dye on selected cotton fabrics
… the effects of temperature, time, and pH (hydrogen ion concentration) of the dyebath on the colorfastness properties of the household dye selected; (3) to evaluate the effects of after treatments of acetic acid and copper sulfate; and (4) to evaluate the dyed samples for colorfastness to …
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Effects of different rates of liming on crop yields and soil reactions on different soil types
… in the State, and to determine if possible the hydrogen ion concentration for the most economic yields of the different crops on different soil types. Plots will be laid out at Blacksburg, Staunton, Williamsburg, Holland, and Martinsville, and limed at different rates, Yields will be kept of …
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An improved digital computer model of the neonatal respiratory system
… and cerebrospinal fluid compartment. Respiration is a function hydrogen ion concentration in the medulla and oxygen tension and hydrogen ion concentration in the aorta. Cardiac output is a function of oxygen and carbon dioxide tension in the brain and oxygen tension at the tissues. Major …
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The collection of specimens of urine from infants, with observations on renal function in the first two weeks of life
… of urine. Part two is divided into our sections, the first of which offers some evidence of the clinical state of the 63 infants with whom this thesis is mainly concerned. The remaining three sections deal with the establishment of post -natal Penal funetion, the volume of the urinary …
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Kinetics and mechanism of iodination of 1-methylpyrazole
… rate law in buffered aqueous iodine-iodide solutions. Three iodinating agents other than iodine were considered: direct attack by hypoiodous acid, acid catalyzed attack by hypoiodous acid, and the iodinium ion. The first two were discarded because of the observed dependence of the rate on the …
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The utilization of paper mill wastes in the flotation of manganese ores
… Bank deposits of Virginia was prepared for flotation by grinding to different degrees of fineness. The coarsest size was a 28 Tyler Mesh and the finest was 100 Tyler mesh. Under size products of the grinding were as fine as minus 200 Tyler Mesh. Flotation tests were run on the ore in a Denver …
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The reaction between ferrocytochrome c and hydrogen peroxide
The reaction between ferrocytochrome c and hydrogen peroxide has been studied to determine possible reaction mechanisms. This was done by investigating the effect of various physical factors, such as hydrogen ion concentration, ionic strength and temperature, on the reaction and by studying the …
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Microbial Ecology of a Bat Guano Community
… decomposer communities found elsewhere. The relationships between the biochemical composition, microflora, and microfauna were studied using biochemical, agar film, dilution plate, pit-fall trap, direction observation, and photographic techniques on guano of various ages. Fresh guano is initially …
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A study of the seasonal distribution of Anopheles in Houston, Texas
… with the control of the disease by the eradication of the anopheline mosquitoes, and much of such work recently has dealt with the ecological aspects of the problem. Such factors as temperature, humidity, larval food, plant associates, hydrogen-ion concentration of the water of larval breeding …
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Studies of Onion Root Respiration
No abstract prepared.
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A comparative study of the change in diatom inferred ph of a staircase of lakes in the Algoma District, Northern Ontario /
… is perhaps important in the interpretation of sediment in the more acid environment. Lake Z4 was the only one that had a progressive as well as a significant decrease in its downcore diatom inferred pH since the early 1960's. This lead me to speculate that the humic substances present in …
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The production of 4-adminobutyrate in response to treatments reducing cytosolic pH and the regulation of intracellular pH
… is synthesized through the decarboxylation of LGlu- (L-Glu-+ H+ ---> GABA + C02), and compared to many free amino acids is present in high concentrations in plant cells. GABA levels rise rapidly and dramatically in response to varied stress conditions including anaerobiosis. Recent …
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Classification of Foetal Distress and Hypoxia Using Machine Learning
Foetal distress and hypoxia (oxygen deprivation) is considered a serious condition and one of the main factors for caesarean section in the obstetrics and gynaecology department. It is considered to be the third most common cause of death in new-born babies. Foetal distress occurs in about 1 in 20 …
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Model studies of metal-slag reactions in reaction generated foams.
… certain aspects of the slag-raetal-gas reactions that occur in L.3). steelmaking. In the model the molten iron was represented by a pool of sodium amalgam, the slag by a mixture of water and glycerol and the oxygen by a hydrogen chloride-nitrogen jet. Droplets of amalgam ejected from the bath …
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