The non-deterioration of the soil : being an essay to explain the continued local uniformity in depth, text and chemical constitution of the soil in the natural state, or when uniformly cultivated, whether without or with manure /

Mode of access: Internet.

Evaluation of incremental allocation alternatives for the prevention of significant deterioration in Illinois /

Project no. 10.096.

Trail deterioration and maintenance.

"8023 2404."

Report of the Inter-Departmental Committee on Physical Deterioration ...

Title varies.

Deterioration of hardwood logging slash in the South /

Caption title.

Aerobic mesophilic sporeforming bacteria /

Contribution from Bureau of Plant Industry, Soils and Agricultural Engineering.

University Hall, deterioration in 1940s

Jenison, Edward S., architect.

University Hall, deterioration in 1940s

Jenison, Edward S., architect. On verso: #9525

University Hall, deterioration in 1940s

Jenison, Edward S., architect. On verso: #9524

Report of papers and discussion at the Cambridge meeting of the British association, 1904, on the alleged physical deterioration of the people and the utility of an anthropometric survey.

Cover title: Physical deterioration. Being the report of papers and discussions ...

RANDOMDEC--mathematical background and application to detection of structural deterioration in bridges /

Mode of access: Internet.

Aerobic cultivation of Streptococcus zooepidemicus and the role of NADH oxidase

A metabolic flux model was developed for Streptococcus zooepidemicus to compare the metabolism of glucose and maltose during aerobic batch cultivation. Lactic acid was the main product of glucose metabolism whereas acetic acid was the main product of maltose metabolism. This difference was chiefly attributed to the two-fold higher flux through NADH oxidase in maltose-grown cells that enabled the ATP generation rate to remain high despite a slower maltose consumption rate. The two-fold higher flux was matched by a two-fold increase in NADH oxidase activity, 2.53 +/- 0.1 mumol NADH min(-1) mg(-1) protein on maltose versus 1.07 +/- 0.04 Rmol NADH min(-1) mg(-1) protein on glucose, indicating that NADH oxidase activity is regulated by the energy status of the cell. Surprisingly, the energy status of the cell had little impact on hyaluronic acid (HA) yield and molecular weight. (C) 2003 Elsevier Science B.V. All rights reserved.

Microscale structure and function of anaerobic-aerobic granules containing glycogen accumulating organisms

The spatial arrangement and metabolic activity of 'Candidatus Competibacter phosphatis' was investigated in granular sludge from an anaerobic-aerobic sequencing batch reactor enriched for glycogen-accumulating organisms. In this process, the electron donor (acetate) and the electron acceptor (oxygen) were supplied sequentially in each phase. The organism, identified by fluorescence in situ hybridisation, was present throughout the granules; however, metabolic activity was limited to a 100-mum-thick layer immediately below the surface of the granules. To investigate the cause of this, oxygen microsensors and a novel microscale biosensor for volatile fatty acids were used in conjunction with chemical staining for intracellular storage polymers. It was found that the limited distribution of activity was caused by mass transport limitation of oxygen into the granules during the aerobic phase. (C) 2003 Federation of European Microbiological Societies. Published by Elsevier B.V. All rights reserved.