نتایج جستجو برای: collective effective dose
تعداد نتایج: 1008302 فیلتر نتایج به سال:
Introduction: Nowadays, nuclear medicine (NM) imaging indications in medical practice is raising. A practical step to get closer to the optimization rule is collecting data about patients’ exposure and definition of guidance levels. The aim of this study was definition of local reference level in Isfahan city. Materials and Methods: Questionnaires were given...
Introduction: Nowadays we are witnessing an exponential application of interventional radiology techniques in various communities as well as Iran. Radiological technique is regarded as the 2nd contributing factor in increasing the amount of public doses in various societies. So that related radiation protection organization has recommended measuring patient d...
Introduction The purpose of this study was to estimate organ and effective doses in patients undergoing some common X-ray examinations in Sabzevar, Iran. The effective dose is one of the best parameters for describing the amount of radiation dose received by a patient undergoing any diagnostic X-ray examination. The public dose from X-ray examinations depends on various factors, and its contrib...
this study was performed based on 482 questionnaires from 30 food companies' salespeople which contained 39-items. for testing the model, multilevel approach and hlm 6.05 was used. the main effects of basic physiological needs (relatedness, competency and autonomy) and moderation and main effects of competitive climate and collective sales efficacy were investigated. results showed related...
Apreliminary report on medical radiation exposures to the US population based on publicly available sources of data estimated that the collective dose received from medical uses of radiation has increased by 700% between 1980 and 2006.1 Computed tomography (CT) has had an annual growth rate of 10% per year and accounted for 50% of the collective dose in 2006. Approximately 65% of the collective...
Absract. The radiological impacts from radionuclide releases into Techa, and Yenisei Rivers in Russia are discussed. The dose assessments for human and natural biota are calculated using the methodology of multiple pathways of exposure. In the Mayak complex area the collective dose to the Techa River population during 19491956 was 6,200 man-Sv. The collective dose from radioactive discharges of...
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