نتایج جستجو برای: ionizing radiation

تعداد نتایج: 240474  

Journal: :American Journal of Public Health and the Nations Health 1962

Journal: :American Journal of Medical Sciences and Medicine 2014

A. Keshtkar, A. Mesbahi, H. Sasaki, P. Mehnati,

Background: The fatal effect of ionizing radiation on cells depends on Linear Energy Transfer (LET) level. The distribution of ionizing radiation is sparse and homogeneous for low LET radiations such as X or γ, but it is dense and concentrated for high LET radiation such as heavy-ions radiation. Material and Methods: Chinese hamster ovary cells (CHO-K1) were exposed to 4 Gy Fe-ion 2000 keV/...

2017
Ronald N. Kostoff

Ionizing and non-ionizing electromagnetic field (EMF) radiation, either stand-alone or in combination with other agents, exert health effects on biological systems. The present chapter examines the scope of non-ionizing EMF radiation combined effects; i.e., identifies effects on biological systems from combined exposure to non-ionizing electromagnetic fields/radiation and at least one other age...

ژورنال: ارگونومی 2015
حسام, قاسم, علی آبادی, امیر, مرادپور, زهرا,

Introduction: Welding is considered to be one of the main sources of occupational exposure to non ionizing radiations. The present study was conducted to examine the rate of occupational exposure to non-ionizing radiation in common welding processes. Materials and Methods: In the present descriptive analytical study, occupational exposure to different types of non-ionizing radiations in...

Journal: :iranian journal of nuclear medicine 2016
mohammad sohelur rahman aleya begum ashraful hoque rezaul karim khan miah mohammad mahfuz siraz

introduction: occupational exposure to ionizing radiation due to medical activities (both diagnostic and therapeutic procedures) has increased sharply in recent years. among the occupationally exposed workers in these fields, those most affected by this increased exposure to ionizing radiation are nuclear medicine workers. in this study, annual average effective dose, annual collective effectiv...

Journal: :iranian journal of radiation research 0
x. qin department of occupational health, school of public health, shanxi medical university, taiyuan, 03001, china j. yin department of radiation medicine and environment medicine, china institute for radiation protection, taiyuan, 030006, china j. wen department of radiation medicine and environment medicine, china institute for radiation protection, taiyuan, 030006, china j. wen department of radiation medicine and environment medicine, china institute for radiation protection, taiyuan, 030006, china j. wen department of radiation medicine and environment medicine, china institute for radiation protection, taiyuan, 030006, china q. niu department of occupational health, school of public health, shanxi medical university, taiyuan, 03001, china

background:  hydrogen has been demonstrated can selectively reduce the hydroxyl, which is the main cause of ionizing radiation-induced damage. amifostine (am) is the only radioprotective drug approved by the u.s. food and drug administration for use in radiotherapy. the purpose of the present study was to investigate the combined radio-protective effect of hydrogen rich water (hrw) and am. mate...

Journal: :iranian journal of radiation research 0
m. haghani department of nuclear engineering (radiation medicine section), science and research branch, islamic azad university, tehran, iran s.m.j. mortazavi medical physics & medical engineering department, school of medicine, shiraz university of medical sciences, shiraz, iran d. sardari department of nuclear engineering (radiation medicine section), science and research branch, islamic azad university, tehran, iran m.a. mosleh-shirazi the center for research on radiological sciences, school of allied medical sciences, shiraz university of medical sciences, shiraz, iran a. mansouri fars communication (mokhaberat) company, shiraz, iran

background: whether exposure to common electromagnetic fields affects human health adversely has been a controversial issue. the main goal of this study was to assess the role of 900 mhz microwave radiations with different specific absorption rates (sars), emitted from some widely used cell phones, on the induction of adaptive response in male balb/c mice after receiving a lethal dose of gamma ...

Journal: :medical laboratory journal 0
seyed mostafa mir department of clinical biochemistry, school of medicine, babol university of medical sciences, babol, iran esmaeil samadian laboratory sciences research center, golestan university of medical sciences, gorgan, iran sahar alijanpour department of medical genetics, faculty of advanced medical technologies, golestan university of medical sciences, gorgan, iran alireza khoshbin khoshnazar department of clinical biochemistry, school of medicine, golestan university of medical sciences, gorgan, iran hamid haghighatfard department of medical biotechnology, faculty of advanced medical technologies, golestan university of medical sciences, gorgan, iran seyed hossein sadeghi department of medical genetics, school of medicine, shahid beheshti university of medical sciences, tehran, iran

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Journal: :iranian journal of immunology 0
mohammad reza sheikh sajjadieh department of clinical immunology and allergology, national medical academy for post graduate education larisa kuznetsova department of clinical immunology and allergology, national medical academy for post graduate education vadim bojenko ukrainian specialized dispensaries of radiation defend population, kiev, ukraine

background: the effect of low dose radiation on immune system is shown. ionizing radiation can affect cytokine production and polarization of t helper cells. objective: the current study focused on ionizing radiation in ukrainian children residing in a contaminated area with clinical irritable bowel syndrome. method: our study included 75 rural children population aged 4-18 yrs, who lived in a ...

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