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Assessing Recreational Safety of Urban Marine Waters: Long-Term Coliform and Enterococcus Analysis. [PDF]
Water Environ ResRingenary MJ, Tanacredi JT, Frame GW.
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Computer Methods and Programs in Biomedicine, 2001
Determination of the number of colonies (colony forming units, CFU) is a standard method in microbiological analysis to ensure the quality of drinking water. Normally this tedious work is still performed manually. A PC-based method for the automated counting of digitized images of Petri dishes is presented.
J. Marotz, C. Lübbert, W. Eisenbeiß
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Determination of the number of colonies (colony forming units, CFU) is a standard method in microbiological analysis to ensure the quality of drinking water. Normally this tedious work is still performed manually. A PC-based method for the automated counting of digitized images of Petri dishes is presented.
J. Marotz, C. Lübbert, W. Eisenbeiß
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An Automated Bacterial Colony Counting System
2008 IEEE International Conference on Sensor Networks, Ubiquitous, and Trustworthy Computing (sutc 2008), 2008Bacterial colony enumeration is an essential tool for many widely used biomedical assays. However, bacterial colony enumerating is a low throughput, time consuming and labor intensive process since there might exist hundreds or thousands of colonies on a Petri dish, and the counting process is often manually performed by well-trained technicians.
Chengcui Zhang +3 more
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Models for microbiological colony counts
Journal of Agricultural, Biological, and Environmental Statistics, 2005Concentrations of microorganisms can be estimated from colony counts at different dilutions. However, complications can occur because of colony overlap or inhibition of colony growth. We develop a model of inhibition in which colonies fail to develop if spores are close to spores of other inhibitory species.
Morris, D L, Ridout, M S
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Urology, 1975
Evidence presented herein suggests that: (1) If the Gram stain of the spun urinary sediment is negative, there is no need to do a culture, sensitivity test, and colony count since significant bacteriuria and urinary infection are not present. There are very few false negative results. (2) Since there are many false positive Gram stains, the test is not
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Evidence presented herein suggests that: (1) If the Gram stain of the spun urinary sediment is negative, there is no need to do a culture, sensitivity test, and colony count since significant bacteriuria and urinary infection are not present. There are very few false negative results. (2) Since there are many false positive Gram stains, the test is not
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An automated bacterial colony counting and classification system
Information Systems Frontiers, 2009Bacterial colony enumeration is an essential tool for many widely used biomedical assays. However, bacterial colony enumerating is a low throughput, time consuming and labor intensive process since there may exist hundreds or thousands of colonies on a Petri dish, and the counting process is usually manually performed by well-trained technicians.
Wei-bang Chen, Chengcui Zhang
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Ten-Second Urine Culture and Colony Count
Archives of Pediatrics & Adolescent Medicine, 1964The early diagnosis of urinary tract infection and its rational therapy are dependent upon the qualitative and quantitative urine culture. 1,5 The unreliability of symptoms and the inconstancy of pyuria 5,15 have resulted in the emergence of persistent bacteriuria as the most reliable index of urinary infection.
M F, RANDOLPH, M, GREENFIELD, J, CREASY
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Colony counting on hydrophobic grid-membrane filters
Canadian Journal of Microbiology, 1983A device to facilitate manual scoring of hydrophobic grid-membrane filters (HGMF) is described. Variations in scores were generally less than 2.5% between 41 analysts from six laboratories, who, using the apparatus, scored a set of five specimen HGMF in different ways, and there was good agreement between scores from positive and negative grid-cell ...
A N, Sharpe +4 more
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Bacterial colony counting using distance transform
International Journal of Bio-Medical Computing, 1995A distance-transform based technique is presented for the segmentation of monochrome images of colonies grown on membrane filters. This is used to count the number of Escherichia coli in a given water sample, which is used as a parameter for determining water quality. The result is compared with fuzzy c-means clustering approach.
D P, Mukherjee +3 more
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