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    Wyświetlanie 1-3 z 3
    Tytuł:
    Determination of the cytotoxic activity of Campylobacter strains isolated from bovine and swine carcasses in north - eastern Poland
    Autorzy:
    Wysok, B.
    Uradzinski, J.
    Wojtacka, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/31600.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Opis:
    The study was carried out to determine the cytotoxin production by Campylobacter spp. Isolated from slaughtered cattle and swine in north-eastern Poland. In total three commercial slaughterhouses were sampled during one year. Carcass swabs were taken to detect the level of Campylobacter spp. contamination. Campylobacter spp. was found in 50 (34%) out of 147 swine carcasses examined. PCR analysis revealed 4 (8%) isolates to be C. jejuni, and 46 (92%) to be C. coli. From a total of 373 bovine carcasses, Campylobacter spp. were isolated from 49 (13.1%) samples. The results regarding the occurrence of cdt genes associated with cytotoxicity indicated that 100% of C. jejuni and 67.4% C. coli obtained from pigs had all three cdtA, cdtB and cdtC genes. In case of C. jejuni strains isolated from cattle all cdt genes were confirmed in 93.9% isolates. The isolates possessesing all cdt genes had higher cytotoxic activity against cell lines used. The isolates both from cattle and swine were characterized by the highest cytotoxicity against HeLa cells. The values obtained reached 80.8% for C. jejuni isolates from cattle and 76.2% for C. jejuni and 69.0% for C. coli isolates from swine. High prevalence of cytotoxicity in Campylobacter spp. indicates a significant epidemiological role of this pathogen in human infections.
    Źródło:
    Polish Journal of Veterinary Sciences; 2015, 18, 3
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Prevalence and antimicrobial resistance of Campylobacter in raw milk in the selected areas of Poland
    Autorzy:
    Wysok, B.
    Wiszniewska-Laszczych, A.
    Uradzinski, J.
    Szteyn, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/31071.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Opis:
    During the recent years, an immense increase in the number of food poisoning cases in people caused by Campylobacter (C.) species has occurred. Raw milk, next to poultry meat, is considered the most frequent cause of food poisoning in people caused by the subject bacteria, although it is not always possible to isolate Campylobacter cells from the incriminated milk. Most probably this difficulty is caused by low concentration of the pathogen in milk at the level of 2/3 cells/ml although even such low concentration represents risk to human health. The present study was aimed at determining the occurence of Campylobacter bacteria in milk originating from selected regions of Poland. The isolation method applied in this work was effective in recovering as few as 0.1 cell of Campylobacter per g of food. Among 150 bulk milk samples tested, Campylobacter spp. was isolated from 7 (4.6%) ones. The biochemical identification of the isolated strains conducted by means of conventional biochemical tests as well as by applying the API - Campy tests revealed that all the isolates belonged to the C. jejuni species. Determination of resistance to antibiotics was performed by means of the diffusion disks method for the following antibiotics: gentamicin, ciprofloxacin, ampicillin, chloramphenicol, erythromycin, doxycyclin and tetracycline. Among 7 isolates tested, all were susceptible to ampicillin, chloramphenicol, erythromycin and gentamicin, 28.5% to doxycyclin and 14.2% to tetracycline and ciprofloxacin.
    Źródło:
    Polish Journal of Veterinary Sciences; 2011, 14, 3
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of usefulness of the mems-based integrated navigation unit in car navigation
    Autorzy:
    Uradziński, M.
    Rapiński, J.
    Tomaszewski, D.
    Śmieja, M.
    Guo, H.
    Yu, S.
    Jian, X.
    Powiązania:
    https://bibliotekanauki.pl/articles/298138.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie
    Tematy:
    MEMS
    inertial navigation
    GNSS
    GNSS/IMU integration
    car navigation
    Opis:
    Due to the development of MEMS, there is an opportunity to build a low-cost integrated navigation systems, operating independently of horizon visibility. This paper presents the proposal of an integrated GPS/IMU platform using MEMS technology. In order to verify the performance of a system built at the University of Warmia and Mazury, an experiment was conducted. In this experiment a precise Javad GNSS receiver, commercial grade GPS/IMU XW – ADU5660 and own-built system were used. The experiment was conducted to compare the results obtained from self built device with the working military integrated navigation unit. During the study all three devices were mounted inside moving vehicle. The car drove route inside the Kortowo campus, during which, all equipment performed measurements. Then, the results from both integrated systems were compared with RTK (Real Time Kinematic) results from Javad receiver. Experiments prove that the performance of own device is comparable to the commercial device.
    Źródło:
    Technical Sciences / University of Warmia and Mazury in Olsztyn; 2017, 20(4); 321-331
    1505-4675
    2083-4527
    Pojawia się w:
    Technical Sciences / University of Warmia and Mazury in Olsztyn
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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