Critical Dilution Rate
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. The impact of information technology on performance, quality and financial indicators in a medium-sized clinical laboratory / O impacto da tecnologia da informação sobre os indicadores de desempenho, qualidade e economicos de um laboratorio clinico de medio porte
The present study was performed at the Laboratory of Unimed Hospital in Sorocaba (LUS) with the objective to evaluate the applicability and benefits of the Information Technology (IT), in technical and financial-administrative management, through indicators of performance (production, productivity and recollection), quality (satisfaction research of patients
Publicado em: 2009
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2. Effect of phosphate on the multiplication of Saccharomyces cerevisiae in continuous cultivation / Efeito de fosfato sôbre a multiplicação de Saccharomyces cerevisiae em cultivo contínuo
The influence of phosphate in a continuous culture was studied using mini-fermentor on the Saccharomyces cerevisiae multiplication. Dry matter, substrate concentration, specific substrate comsumption, specific carbon dioxide release, specific oxygen uptake rates and respiration quotient , as well as phosphorous content of the cells were measured in dependenc
Publicado em: 1983
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3. Growth and metabolism of Saccharomyces cerevisiae in chemostat cultures under carbon-, nitrogen-, or carbon- and nitrogen-limiting conditions.
Aerobic chemostat cultures of Saccharomyces cerevisiae were performed under carbon-, nitrogen-, and dual carbon- and nitrogen-limiting conditions. The glucose concentration was kept constant, whereas the ammonium concentration was varied among different experiments and different dilution rates. It was found that both glucose and ammonium were consumed at the
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4. Optimizing the Continuous Production of Candida utilis and Saccharomycopsis fibuliger on Potato Processing Wastewater †
The yeasts Candida utilis and Saccharomycopsis fibuliger were propagated as a source of single-cell protein in a continuous, mixed, aerobic, single-stage cultivation on blancher water generated during potato processing. A series of steady-state experiments based on a two-level factorial design, half-replicate modified with an intermediate experiment, was per
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5. Interference of GTP hydrolysis in the mechanism of microtubule assembly: an experimental study.
This paper reports an experimental study of the interference of GTP hydrolysis in the mechanism of microtubule assembly, following the model and theory previously published [Hill, T. L. & Carlier, M.-F. (1983) Proc. Natl. Acad. Sci. USA 80, 7234-7238]. Results from dilution experiments show that microtubules depolymerize faster below the critical concentrati
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6. Continuous Cultivation for Apparent Optimization of Defined Media for Cellulomonas sp. and Bacillus cereus
Steady-state continuous culture was used to optimize lean chemically defined media for a Cellulomonas sp. and Bacillus cereus strain T. Both organisms were extremely sensitive to variations in trace-metal concentrations. However, medium optimization by this technique proved rapid, and multifactor screening was easily conducted by using a minimum of instrumen
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7. Selection of Ethanol-Tolerant Yeast Hybrids in pH-Regulated Continuous Culture
Hybrids between naturally occurring wine yeast strains and laboratory strains were formed as a method of increasing genetic variability to improve the ethanol tolerance of yeast strains. The hybrids were subjected to competition experiments under continuous culture controlled by pH with increasing ethanol concentrations over a wide range to select the fastes
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8. Effects of Grazing by Flagellates on Competition for Ammonium between Nitrifying and Heterotrophic Bacteria in Chemostats
The enhanced mineralization of organic nitrogen by bacteriophagous protozoa is thought to favor the nitrification process in soils, in which nitrifying bacteria have to compete with heterotrophic bacteria for the available ammonium. To obtain more insight into this process, the influence of grazing by the bacteriovorous flagellate Adriamonas peritocrescens o
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9. Modification of microtubule steady-state dynamics by phosphorylation of the microtubule-associated proteins.
Phosphorylation of purified microtubule-associated proteins (MAPs) inhibits the rate and extent of MAP-stimulated microtubule assembly. The extent of microtubule assembly is reduced as a result of a decrease in the fraction of tubulin polymerized, without a significant change in the critical protein concentration. The decreased rate of microtubule assembly u
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10. ATTACHMENT AND GROWTH OF BACTERIA ON SURFACES OF CONTINUOUS-CULTURE VESSELS
Don H. Larsen (Brigham Young University, Provo, Utah), and R. L. Dimmick. Attachment and growth of bacteria on surfaces of continuous-culture vessels. J. Bacteriol. 88:1380–1387. 1964.—Initial attempts to induce synchrony in a continuous culture of Serratia marcescens by alternating growth temperatures produced fluctuations in the population of a magnitu
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11. Microbial metabolism of haloaromatics: isolation and properties of a chlorobenzene-degrading bacterium.
A chlorobenzene-degrading bacterium was isolated by continuous enrichment from a mixture of soil and sewage samples. This organism, strain WR1306, was grown in a chemostat on a mineral medium with chlorobenzene being supplied through the vapor phase with a critical Dc value at a dilution rate of 0.55 h-1. Maximum growth rates in batch culture were accomplish
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12. Immunoglobulin M antibody capture enzyme-linked immunosorbent assay for diagnosis of St. Louis encephalitis.
Sera from patients with St. Louis encephalitis were tested with an immunoglobulin M (IgM) antibody capture enzyme immunoassay (MAC ELISA). The assay used five reagents: antihuman IgM, test serum, sucrose-acetone-extracted mouse brain antigen, broadly cross-reactive flavivirus monoclonal antibody conjugated to alkaline phosphatase, and substrate (p-nitropheny