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|Title:||Microcalcifications detection using PFCM and ANN|
|Abstract:||Household refrigerators are a potential pathogen contamination source for foods. An evaluation of the microbiological safety of 200 refrigerators in Guadalajara, Jalisco, Mexico, was made by visual inspection, ATP-bioluminescence levels, indicator microorganisms including Escherichia coli and Staphylococcus aureus, and the presence of Listeria monocytogenes and Salmonella. Additionally, interviews of the owners of the refrigerators were carried out to determine relationships between food storage practices, demographic aspects, and microbiological status. Dishcloths used to clean refrigerators were also analyzed. Operational conditions (cleanliness, fullness, organization, frequency of cleaning, and temperature) were evaluated by trained observers. Results showed deficient cleanliness in 55% of refrigerators, 22% were completely full, 43% very disorganized, 28% were usually cleaned only once in 3 to 6 months, and 53% had internal temperatures >7.1°C. ATP-bioluminescence levels were >300 relative light units on 67 and 74% of shelves and drawers, respectively, indicating that surfaces were dirty according to the luminometer manufacturer. Psychrotrophic aerobic bacteria counts on shelves, drawers, and dishcloths were 6.3, 5.2, and 6.3 log CFU/cm2; for coliform bacteria, 5.2, 3.9, and 4.7 CFU/cm2; for E. coli, 3.7, 3.5, and 4.8 CFU/cm2; and for Staphylococcus aureus, 2.1, 2.5, and 2.3 CFU/cm2, respectively. L. monocytogenes and Salmonella were isolated from 59.5, 20.5, and 17% and 32.5, 8.0 and 12.5% of shelves, drawers, and dishcloths, respectively. Four Salmonella serotypes and nine serogroups (partially serotyped isolates) were identified. The most prevalent were Salmonella Anatum (39.5%), Salmonella group E1 (19.7%), and Salmonella group E1 monophasic (12.5%). Operational conditions and microbiological status were clearly deficient in sampled refrigerators, highlighting the consequent risk of foodborne disease among users. Educational programs are needed to improve the domestic food safety in Mexico. Copyright " International Association for Food Protection.",,,,,,"10.4315/0362-028X.JFP-12-258",,,"http://hdl.handle.net/20.500.12104/42809","http://www.scopus.com/inward/record.url?eid=2-s2.0-84878828320&partnerID=40&md5=d6c1ebf0cc5c9d891818636ad3f0888d|
http://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&D=medl&AN=23726193",,,,,,"6",,"Journal of Food Protection",,"984
MEDLINE",,,,"Index Medicus;Colony Count, Microbial;Consumer Product Safety;Equipment Contamination;Escherichia coli/ip [Isolation & Purification];Food Contamination/an [Analysis];Food Contamination/pc [Prevention & Control];Food Handling/mt [Methods];Food Handling/st [Standards];Food Microbiology;Listeria monocytogenes/ip [Isolation & Purification];Mexico;Refrigeration/st [Standards];Salmonella/ip [Isolation & Purification];Staphylococcus aureus/ip [Isolation & Purification];Temperature",,,,,,,,"Microbiological safety of domestic refrigerators and the dishcloths used to clean them in Guadalajara, Jalisco, Mexico",,"Article" "44589","123456789/35008",,"Vega-Corona, A., Computational Intelligence Laboratory LABINCO-DICIS, University of Guanajuato, Salamanca, Guanajuato 36885, Mexico; Quintanilla-Domínguez, J., Group for Automation in Signals and Communications GASC, Technical University of Madrid, Madrid 28040, Spain, Department of Projects Engineering DIP-CUCEI, University of Guadalajara., Zapopan, Jalisco 45101, Mexico; Ojeda-Magaña, B., Group for Automation in Signals and Communications GASC, Technical University of Madrid, Madrid 28040, Spain, Computational Intelligence Laboratory LABINCO-DICIS, University of Guanajuato, Salamanca, Guanajuato 36885, Mexico; Cortina-Januchs, M.G., Group for Automation in Signals and Communications GASC, Technical University of Madrid, Madrid 28040, Spain, Department of Projects Engineering DIP-CUCEI, University of Guadalajara., Zapopan, Jalisco 45101, Mexico; Marcano-Cedeño, A., Group for Automation in Signals and Communications GASC, Technical University of Madrid, Madrid 28040, Spain; Ruelas, R., Computational Intelligence Laboratory LABINCO-DICIS, University of Guanajuato, Salamanca, Guanajuato 36885, Mexico; Andina, D., Group for Automation in Signals and Communications GASC, Technical University of Madrid, Madrid 28040, Spain",,"Vega-Corona, A.
Andina, D.",,"2011",,"This work presents a method to detect Microcalcifications in Regions of Interest from digitized mammograms. The method is based mainly on the combination of Image Processing, Pattern Recognition and Artificial Intelligence. The Top-Hat transform is a technique based on mathematical morphology operations that, in this work is used to perform contrast enhancement of microcalcifications in the region of interest. In order to find more or less homogeneous regions in the image, we apply a novel image sub-segmentation technique based on Possibilistic Fuzzy c-Means clustering algorithm. From the original region of interest we extract two window-based features, Mean and Deviation Standard, which will be used in a classifier based on a Artificial Neural Network in order to identify microcalcifications. Our results show that the proposed method is a good alternative in the stage of microcalcifications detection, because this stage is an important part of the early Breast Cancer detection. " 2011 Springer-Verlag Berlin Heidelberg.
|Appears in Collections:||Producción científica UdeG|
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