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Inspection of bottles crates in the beer industry through computer vision
Campos, Mário; Ferreira, Manuel; Martins, Teresa; Santos, CristinaThis article presents a system developed for the industry of bottling beer. The system has to perform the inspection of various items in the final stage, meaning after the production phase where the bottles are already in the crate. The items to inspect are the following: whether the crate is correct (with the correct color), whether the crate is broken, whether the crate is fully populated, i.e., all bottles a...
Adaptive complementary filtering algorithm for mobile robot localization
Alves Neto,Armando; Macharet,Douglas Guimarães; Campos,Víctor Costa da Silva; Campos,Mario Fernando MontenegroAs a mobile robot navigates through an indoor environment, the condition of the floor is of low (or no) relevance to its decisions. In an outdoor environment, however, terrain characteristics play a major role on the robot's motion. Without an adequate assessment of terrain conditions and irregularities, the robot will be prone to major failures, since the environment conditions may greatly vary. As such, it ma...
Detection of defects in automotive metal components through computer vision
Campos, Mário; Martins, Teresa; Ferreira, Manuel; Santos, CristinaThis article introduces the progresses made on the development of an automatic visual inspection for automotive metal components. These components may present three types of defects, which are: central hole closed or partially closed; absence of thread on the bolts; burr on the weld connections. For each type of defect different image processing and analysis algorithms were tested and a specific setup (type and...
Genetic diversity of oral Fusobacterium nucleatum isolated from patients with d...
Avila-Campos,Mario J.; Rivera,Irma N.; Nakano,VivianeThe genetic diversity of 23 oral Fusobacterium nucleatum isolated from 15 periodontal patients, eight from seven healthy subjects, nine from nine AIDS patients and two from two Cebus apella monkeys were analyzed. EcoRI restricted the bacterial DNA and 28 ribotypes grouped from A to J groups were obtained. Isolates formed 24 ribotypes which were contained into A, B, C, D, E and F groups, and three reference stra...
High flux haemodialysis with polysulfone dialysers reduces peripheral blood lym...
Sá, Helena; Alves, Vera; Oliveira, Filomena; Mota-Pinto, Anabela; Campos, Mário; Santos-Rosa, ManuelBackground: Apoptosis appears to be the major mechanism by which mature lymphocytes maintain homeostasis. This study aims to analyse whether different types of haemodialysis (HD) therapies (low and high flux dialysers) could modify peripheral blood lymphocyte activation status and apoptosis death. Methods: Forty-six stable chronic HD patients were enrolled in this clinical study (median age 60.6±17.4 years-old)...
Survey of antimicrobial susceptibility patterns of the bacteria of the Bacteroi...
Nakano,Viviane; Avila-Campos,Mario JulioThe bacteria of the Bacteroides fragilis group are considered important clinical pathogens and they are the most common anaerobes isolated from human endogenous infections. In this study, the susceptibility patterns to antibiotics and metals of 114 species of the B. fragilis group isolated from children with and without diarrhea were determined. Susceptibility was assayed by using an agar dilution method with W...
Virulence markers and antimicrobial susceptibility of bacteria of the Bacteroid...
Nakano,Viviane; Avila-Campos,Mario JBacteroides fragilis has been isolated from several human and non-human monomicrobial and mixed infections. In this study, some virulence markers and the antimicrobial susceptibility of bacteria of the B. fragilis group isolated from children's stools were evaluated. All the 64 isolates showed the following characteristics: capsulated, beta-hemolytic, hydrophilic, and serum-resistant. Only, 24 (37.5%) strains w...
Detection of pathogens from periodontal lesions
Malheiros,Veruska de João; Avila-Campos,Mario JulioOBJECTIVE: To comparatively detect A. actinomycetemcomitans and F. nucleatum from periodontal and healthy sites. METHODS: Subgingival clinical samples from 50 periodontitis adult patients and 50 healthy subjects were analyzed. Both organisms were isolated using a trypticase soy agar-bacitracin-vancomycin (TSBV) medium and detected by PCR. Conventional biochemical tests were used for bacteria identification. RES...
Prevalence of Clostridium spp. and Clostridium difficile in children with acute...
Ferreira,Claudia EA; Nakano,Viviane; Durigon,Edison L; Avila-Campos,Mario JSpecies of Clostridium are widely distributed in the environment, inhabiting both human and animal gastrointestinal tracts. Clostridium difficile is an important pathogen associated with outbreaks of pseudomembranous colitis and other intestinal disorders, such as diarrhea. In this study, the prevalence of Clostridium spp. and C. difficile, from hospitalized children with acute diarrhea, was examined. These chi...
Detection of non-enterotoxigenic and enterotoxigenic Bacteroides fragilis in st...
Krzyzanowsky,Flávio; Avila-Campos,Mario J.Non-enterotoxigenic bacteria of the Bacteroides fragilis group and enterotoxigenic B. fragilis were identified from children with and without aqueous acute diarrhea. In this study, 170 stool samples from 96 children with and 74 without diarrhea were analyzed. Enterotoxin production and the toxin gene detection were detected by cytotoxicity assay on HT-29/C1 cells and by PCR, respectively. B. fragilis species wa...
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