نتایج جستجو برای: radiation workers
تعداد نتایج: 350067 فیلتر نتایج به سال:
For pandemic influenza planning, realistic estimates of personal protective equipment (PPE) and antiviral medication required for hospital healthcare workers (HCWs) are vital. In this simulation study, a patient with suspected avian or pandemic influenza (API) sought treatment at 9 Australian hospital emergency departments where patient-staff interactions during the first 6 hours of hospitaliza...
A cytogenetic study was carried out on 359 clean-up workers who worked at the Chernobyl station in 1986-1989. The investigation was performed 6-12 years after irradiation. Chromosome type damages, i.e. double fragments, dicentrics and rings were significantly increased in the cleanup workers compared to the control. Chromatid exchanges were found only in the clean-up workers. A temporal change ...
This study analyzes the prevalence of thyroid disease in healthcare workers who have worked at the University Hospital in Pisa. They underwent a health surveillance protocol from 2 January 2005 to 1 July 2009 with particular regard to occupational exposure to ionizing radiation. Data of health care workers were obtained by consulting Asped 2000: computerized medical records used by the Universi...
introduction: ionizing radiations are the hazardous agents in the workplace and all forms of ionizing radiation produce some type of injuries. awareness of application of protection guidelines and knowledge of the principles of radiation protection can play an important role in health of employees. survey of radiation employee’s levels of awareness and practical behavior is essential and should...
Radiation-induced free radicals are considered to initiate and perpetuate the action of ionizing radiation (IR) on living organisms, causing mutations, cell apoptosis or even genetic instability. Oxidative processes play an important role in the pathogenesis of several diseases (e.g. neurodegenerative and cardiovascular diseases or cancer). In contrast, some authors state that a ‘radiation adap...
We performed a study on the presence of chromosome aberrations in a cohort of plutonium workers of the Mayak production association (PA) with a mean age of 73.3 ± 7.2 years to see whether by multi-color fluorescence in situ hybridization (mFISH) translocation analysis can discriminate individuals who underwent occupational exposure with internal and/or external exposure to ionizing radiation 40...
BACKGROUND Ionizing radiation at very high (radio-therapeutic) dose levels can cause diseases other than cancer, particularly heart diseases. There is increasing evidence that doses of the order of a few sievert (Sv) may also increase the risk of non-cancer diseases. It is not known, however, whether such effects also occur following the lower doses and dose rates of public health concern. ME...
BACKGROUND The biological effects of high levels of radiation exposure are fairly well known, but the effects of low levels of radiation are more difficult to determine because the deterministic effects do not occur at these levels. METHODS In order to assess the risk of this exposure on BM thrombopoiesis, we measured reticulated platelets (RP) by flow cytometry in 14 hospital workers (12 tec...
The authors investigated associations between ionizing radiation and leukemia mortality among workers at the Savannah River Site (South Carolina). A total of 18,883 workers hired between 1950 and 1986 were followed through 2002 to ascertain causes of death. Estimates of radiation doses from external sources and internal tritium uptakes were derived from dosimetry records through 1999. Radiation...
For the purpose of occupational radiation protection against ionizing radiation, it is important to assess radiation risks due to any contamination events. Effective dose equivalent and body organs dose of workers exposed to 131 I have been estimated in this work. For this sake, both MONDAL 2.0 software and Visual Monte Carlo-dose calculation (VMC-dc) programs were applied. The cases under cons...
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