161 research outputs found

    Validation and analysis of UV radiation time series collected in different peruvian sites

    Get PDF
    We evaluate a set of ultraviolet solar radiation (UVR) measurements collected in six locations in Peru: Ica, Tacna, Moquegua, Arequipa, Cajamarca and Marcapomacocha, whose altitudes vary from sea level to 4479 m. The analysis involved the validation and analysis of the ultraviolet index (UVI) and the daily erythemal doses (D-Er). Clear-sky filtered data were compared with numerical simulations provided by the Tropospheric Ultraviolet and Visible (TUV) radiation model in order to estimate numerical regression equations. These equations showed high determination coefficients (R 2 > 0.91) statistical significance (p < 0.0001). Results show that the maximum UVI observed in Peru was 23.5 in Marcapomacocha (4479 m above sea level). Regarding D-Er, the highest means were observed in summer at the city of Arequipa with daily averages closer than 7.9 kJm -2 (± 1.3 kJm -2 ). However, the highest daily dose was observed in Cajamarca in the fall, with 14.3 kJm -2 . These large amounts of high D-Er and very high and extreme UVI episodes indicate an important risk to the development of solar-related skin diseases, as the skin cancers. Our analysis provides a new knowledge on the spatial and temporal UV distribution in Peru and an important tool to justify public policies for solar protection

    Tuberculosis determined by Mycobacterium bovis in captive waterbucks (Kobus ellipsiprymnus) in São Paulo, Brazil

    Get PDF
    Two waterbucks from São Paulo Zoo Foundation exhibited respiratory symptoms in July 2004. After euthanasia, granulommas in lungs and mediastinic lymph nodes were observed. Acid-fast bacilli isolated were identified as Mycobacterium bovis spoligotype SB0121 by PRA and spoligotyping. They were born and kept in the same enclosure with the same group, without any contact to other species housed in the zoo. This is the first detailed description of M. bovis infection in Kobus ellipsiprymnus.FAPES
    • …
    corecore