Thesis (Ph. D.)--University of Wisconsin--Madison, 1980. / Typescript. Vita. Includes bibliographical references.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1957. / Typescript. Vita. Includes [as parts II and III] : Calcium and polymetaphosphate synthesis in Azotobacter vinelandii O / [Raymond G. Esposito ; P.W. Wilson]. Reprinted from Biochimica et biophysica acta, vol. 22 (1956), p. 186-187 -- Trace metal requirements of Azotobacter / Raymond G. Esposito and Perry W. Wilson. Reprinted from Proceedings of the Society for Experimental Biology and Medicine, vol. 93 (1956), p. 564-567. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 70-74).

Thesis (Ph. D.)--Columbia University, 1940. / Vita. Bibliography: p. 32-34.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1940. / Typescript. Includes abstract and vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 48-52).

The purpose of this study is to collect and organize all data available to the investigator on the subject of calcium and phosphorus requirements for normal children. Since it is the business of nutrition to maintain health and prevent disorders, leaving the cure of disorders to the medical profession, this study deals with the calcium and phosphorus metabolism of normal children and avoids going into the pathological phases, taking up rickets and tetany only in so far as prevention is concerned. If this study has any value it lies in the fact that the findings of investigators seem to be scattered throughout a great many books and scientific journals, and it was thought that the collection and organization of these findings would serve as useful purpose in making this research more readily available to nutrition students. The bibliography for the study was made up from references given by such recognized authorities and sources as Sherman, McLester, Starling, Lusk, Van Slyke and Peters, Bogert, Rose, Child Development Abstracts, British Nutrition Abstracts, and Chemical Abstracts. From this bibliography were chosen those books and articles which seemed to the writer to be most promising as to reliability, amount of information, and variety of information. Part of the work has of necessity been adapted to children from experiments on adults. The importance of calcium and phosphorus in the diet of little children is emphasized by Sherman as follows: "The effect of an insufficient intake of calcium is natural more serious with growing than with full grown animals. The young need more calcium because during growth and development the body in increasing not only the amount but the percentage of calcium which it contains. *** growing children whose height, weight, and appearance are normal may have a calcium-poor condition of the body*** Since this is largely a matter of the deposition of calcium phosphate in the developing bones, the phosphorus content of the body tends to remain low when the calcium is low and to rise to normal with the calcium when the calcium content of the food is increased.

Thesis (M.S.)--University of Michigan, 1994. / eContent provider-neutral record in process. Description based on print version record.

Thesis--Wisconsin. / Vita. Includes bibliographical references (leaves 194-203).

Nutrients and cations have significant effect on activated sludge characteristics and therefore effect the efficiency of whole processes. To determine the properties in phosphorus deficient medium and the effect of calcium ions two reactor sets with two different phosphorus concentration (C/N/P=100/5/0.05 and C/N/P=100/5/1), three different concentrations of calcium (0.5, 5, 15 meq/L) were operated with 8 days of sludge residence time and an effective volume of 2 L. Results showed amount and composition of EPS was dependent on calcium and phosphorus concentrations. Except for the highest calcium concentration, increase in phosphorus concentration resulted in increase in total EPS production. Under phosphorus deficient conditions, calcium ions stimulated the production of carbohydrate type polymers and viscous bulking was observed. However, the increase in phosphorus concentration led to increase in protein type polymer production and bulking condition was cured. Addition of calcium ions increased conductivity in both cases, but increase in phosphorus concentration caused decrease in conductivity. Increase in phosphorus concentration had improved settleability, dewaterability and rheology of sludge. Moreover, effluent turbidity was decreased and COD removal efficiency was recorded as greater than 95 % for all calcium concentrations under phosphorus sufficient conditions. Microscopic analyses showed that under phosphorus deficient conditions flocs were weak, dispersed and nonresistant. Increase in phosphorus concentration resulted in improvement of floc structure. Same Enterobacter and Citrobacter species were identified at all calcium concentrations under phosphorus deficient conditions. Yet, under phosphorus sufficient conditions different species were identified in control reactor as compared to 5 meq/L and 15 meq/L concentrations.