نتایج جستجو برای: occupational dose
تعداد نتایج: 366133 فیلتر نتایج به سال:
Occupational exposures to ionising radiation mainly occur at low-dose rates and may accumulate effective doses of up to several hundred milligray. The objective of the present study is to evaluate the evidence of cancer risks from such low-dose-rate, moderate-dose (LDRMD) exposures. Our literature search for primary epidemiological studies on cancer incidence and mortality risks from LDRMD expo...
Background: ˝Radioadaptive Response˝ is well-documented phenomenon appeared in low dose ionizing radiation received in vitro and in vivo. Occupational exposure has always been a great concern for radiation workers therefore this study was performed to study radioadaptive response in terms of residual DNA double strand breaks as an endpoint in peripheral blood leukocytes of occupationally expose...
OBJECTIVE The practice of regular dose measurement helps to ascertain the level of occupational dose delivered to the staff involved in diagnostic procedures. This study was carried out to evaluate the dose exposed to the hands of radiologists and a radiologic technologist carrying out HSG and radionuclide bone scan examinations in several hospitals in Nigeria. METHODS Radiation doses exposed...
BACKGROUND Although genes involved in apoptosis pathways and DNA repair pathways are both essential for maintaining genomic integrity, genetic variants in DNA repair have been thought to increase susceptibility to radiation carcinogenesis, but similar hypotheses have not generally been raised about apoptosis genes. For this reason, potential modification of the relationship between ionizing rad...
Occupational exposure limits for substances having an irritant and odoriferous effect “Fresh, clean air” is a characteristic of the quality air we breathe. The perception unpleasant or unexpected odour often interpreted as indication pollution associated with concerns about adverse health effects. frequently asked question then: Does it only smell, also harmful to health? If hazardous are handl...
Occupational exposure to ionizing radiation can occur in a range of industries, medical institutions, educational and research establishments. Most protection programs, regulations guidance apply specific restrictions the occupational pregnant workers. Both worker employer carry responsibility towards safety. The her conceptus are best protected facility that uses practices for This article rev...
The purpose of this article is to provide an overview and practical guide to occupational health professionals concerning the derivation and use of dose estimates in risk assessment for development of occupational exposure limits (OELs) for inhaled substances. Dosimetry is the study and practice of measuring or estimating the internal dose of a substance in individuals or a population. Dosimetr...
Incomplete radiation exposure histories, inadequate treatment of internally deposited radionuclides, and failure to account for neutron exposures can be important uncertainties in epidemiologic studies of radiation workers. Organ-specific doses from lifetime occupational exposures and radionuclide intakes were estimated for an epidemiologic study of 5,801 Rocketdyne/Atomics International (AI) r...
INTRODUCTION Hearing impairment remains the main occupational health problem in the manufacturing industry, and its contributing factors have not been well controlled. METHODS Unmatched case control and comparative studies were carried out among fertilizer factory workers in Sarawak with the aim of determining contributing factors for hearing impairment. Respondents consisted of 49 cases that...
OBJECTIVE There is a lack of research on effects of occupational noise exposure in traditionally female-dominated workplaces. Therefore, the aim of this study was to assess risk of noise-induced hearing-related symptoms among obstetrics personnel. DESIGN A cross-sectional study was performed at an obstetric ward in Sweden including a questionnaire among all employees and sound level measureme...
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