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Dealing with imprecise quantities is an important problem in scientific computation. Model parameters are known only approximately, typically in the form of probability density functions. Unfortunately there are currently no methods of taking uncertain parameters into account which would at the same time be easy to apply and highly accurate. An important(More)
We present algorithms for fast generation of short reducts which avoid building the discernibility matrix explicitly. We show how information obtained from this matrix can be obtained based only on the distributions of attribute values. Since the size of discernibility matrix is quadratic in the number of data records, not building the matrix explicitly(More)
UNLABELLED The aim of the study was to evaluate the nature and frequency of sharps injuries among doctors and nurses from the same surgical/gynecological wards and the prevalence of HBV/HCV/HIV infection. MATERIAL AND METHODS An anonymous cross-sectional sero-survey, with ELISA system used to detect anti-HBc, anti-HCV, anti-HIV, was conducted among 89(More)
BACKGROUND Hepatitis B is a significant health burden in Poland with nosocomial transmission being the main source of infection. Therefore, HBV vaccination is widely recommended for those not covered by the national immunisation program. OBJECTIVE To assess the coverage and influencing determinants of HBV vaccination among adult patients attending GP(More)
It is well known that community awareness of hepatitis B (HB) can lead to vaccination and testing. The study objectives were to assess the prevalence of HBV infection and knowledge of HB among adult patients attending randomly selected primary care clinics. A cross-sectional sero-survey was conducted in March 2013 in the Zgorzelec region, Poland, with the(More)