نتایج جستجو برای: internal exposure

تعداد نتایج: 534255  

Journal: :iranian journal of medical physics 0
tayyeb allahverdi pourfallah biochemistry and biophysics dept., faculty of medicine, mazandaran university of medical sciences, sari, iran maryam shahidi biochemistry and biophysics dept., faculty of medicine, mazandaran university of medical sciences, sari, iran

introduction in this study, effective dose equivalent for the public due to internal exposure to 222radon (222rn) was evaluated in three regions of ramsar, a northern coastal city in iran.                                materials and methods measurements were carried out using a radon monitoring device. outdoor and indoor radon concentrations were measured within 24 hours with an integration in...

Journal: :iranian journal of radiation research 0
t.v. ramachandran 19-a/201, verain, regency estate, kalyan – shill road near s.v. jondhele eng. college, dombivli(e) 421 202, thana dist, maharashtra, india

all living organisms are exposed to ionizing radiation comprising cosmic rays coming from outer space, terrestrial nuclides occurring in the earth’s crust, building materials, air, water and foods and in the human body itself. the exposures are constant and uniform for all individuals everywhere including the dose from ingestion of 40k in food. cosmic rays are, more intense at higher altitudes,...

Journal: :iranian journal of nuclear medicine 2007
ali shabestani monfared mehrangiz amiri

introduction: radioactive materials deliver internal radiation dose to patients in nuclear medicine. manual internal radiation dose assessment is a complicated method. introduction of a simple dose calculation software is the main goal of the present study. methods: using the best current data in internal dose calculation (s-factors) recommended by icrp and by considering other technical metho...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1381

‏‎the hypothesis is that recent and frequent exposure to lexical items leads to a more fluent production of speech in terms of rate of speech. to test the hypothesis,a one-way anova experimental design was carried out. 24 sednior students of efl participated in a one-way interview test. data analyses revealed that those who were exposed frequently to the lexical items over a week prior to inter...

Journal: :Japanese Journal of Health Physics 1970

Introduction: The present study investigated the relatively high concentrations of natural radionuclides in raw material that used in ceramic manufacturing, and estimated the occupational exposure due to these activity concentrations. Material and Methods: A high-purity Germanium detector was used to determine naturally occurring radionuclide...

Introduction In this study, effective dose equivalent for the public due to internal exposure to 222radon (222Rn) was evaluated in three regions of Ramsar, a northern coastal city in Iran.                                Materials and Methods Measurements were carried out using a radon monitoring device. Outdoor and indoor radon concentrations were measured within 24 hours with an integration in...

F. Atabi, H. Garshasbi, J. Karimi Diba, M.J. Zarei, N. Alirezazadeh,

ABSTRACT Background: Monitoring internal exposure of individuals handling significant amounts of iodine-125 (I-125) for iodination is of great importance. These individuals are potentially exposed to external contamination, and internal contamination through inhalation, ingestion and intact skin absorption, to I-125. Considering radiological toxicity of this radionuclide its monitoring in the w...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی استان سیستان و بلوچستان 1378

ایمپلنت h.a چشمی در ابتدا بوسیله آرتورپری در 1985 بکار رفته برای استفاده عمومی در 1989 بوسیله fda، توسعه یافت . ما در یک مطالعه مقطعی، عوارض ایجاد شده در بیمارانی را که بعد از تخلیه چشم در آنها کره هیدروکسی آپاتیت کار گذاشته شده بود، بررسی کردیم. این مطالعه بر روی بیماران از سال 1372 تا 1377 انجام شده است . از بین 30 مورد بیمار مورد مطالعه، 8 مورد (26 درصد) دچار عارضه شده بودند که 6 نفر آنها مر...

Journal: :health scope 0
seyed younes hosseini occupational health department, shahid beheshti university of medical sciences, tehran, ir iran mansour rezazadeh azari occupational health department, shahid beheshti university of medical sciences, tehran, ir iran; safety promotion and injury prevention research center, shahid beheshti university of medical sciences, tehran, ir iran; occupational health department, shahid beheshti university of medical sciences, tehran, ir iran. safety promotion and injury prevention research center, shahid beheshti university of medical science, tehran, ir iran. tel: +98-9123874329, fax: +98-212243203 rezvan zendehdel occupational health department, shahid beheshti university of medical sciences, tehran, ir iran hamid souri occupational health department, shahid beheshti university of medical sciences, tehran, ir iran; safety promotion and injury prevention research center, shahid beheshti university of medical sciences, tehran, ir iran raana taiefeh rahimian occupational health department, shahid beheshti university of medical sciences, tehran, ir iran

background solvents such as benzene and toluene are commonly used in tire manufacturing, and significant occupational exposure to these chemicals adversely affects the health of workers. in biological monitoring, a complementary method for personal monitoring, the internal absorbed dose is measured and individual, environmental, and exposure differences are taken into consideration. conclusions...

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