نتایج جستجو برای: radiation exposure rate

تعداد نتایج: 1435275  

Journal: :Functional Ecology 2022

Exposure to radiation is a natural part of our environment. Yet, due nuclear accidents such as at Chernobyl, some organisms are exposed significantly elevated dose rates. Our understanding the effects in environment limited, confounded by substantial interspecific differences radio-sensitivity and conflicting findings. Here we study impacts on bumblebees laboratory using principles from life-hi...

Journal: :Journal of the American College of Cardiology 1999
J T Cusma M R Bell M A Wondrow J P Taubel D R Holmes

OBJECTIVES The aim of this study was to accurately assess the radiation exposure received by patients during cardiac catheterization in a large sample representative of the current state of practice in cardiac angiography. BACKGROUND Radiation exposure to patients and laboratory staff has been recognized as a necessary hazard in coronary angiography. The effects on x-ray exposure of the incre...

Journal: :The Journal of clinical endocrinology and metabolism 2005
Christy M Caudill Zhaowen Zhu Raffaele Ciampi James R Stringer Yuri E Nikiforov

Ionizing radiation is a well-known risk factor for thyroid cancer in human populations. Chromosomal rearrangements involving the RET gene, known as RET/PTC, are prevalent in thyroid papillary carcinomas from patients with radiation history. We studied the generation of RET/PTC in HTori-3 immortalized human thyroid cells exposed to a range of doses of gamma-radiation and harvested 2, 5-6, and 9 ...

Journal: :international journal of molecular and clinical microbiology 0
ariyo shahin-jafari department of pathobiology, faculty of veterinary specialized sciences, science and research branch, islamic azad university, tehran, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) mansour bayat department of pathobiology, faculty of veterinary specialized sciences, science and research branch, islamic azad university, tehran, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) mohammad hassan shahhosseini department of microbiology, shahr-e-qods branch, islamic azad university, tehran, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) parviz tajik department of pathobiology, faculty of veterinary specialized sciences, science and research branch, islamic azad university, tehran, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) shahla roudbar-mohammadi faculty of medical mycology, tarbiat modares university, tehran, iranسازمان اصلی تایید شده: دانشگاه تربیت مدرس (tarbiat modares university)

to date, registered users of mobile phone communication network exceeded from total numbers of the world population, while a little knowledge of the biological effects of, 900-1800 mhz microwave radiation, originating from the handsets or the base transceiver stations, have been released. the current study was designed for evaluation of 900-mhz radiation effects on candida albicans proliferatio...

A Khoradmehr F Safian, MA Khalili

Background Using cellular phone among adults, teenagers and children has rapidly increased all over the world. Also, the concern on the possible health hazards of Electromagnetic Fields (EMF) induced from cell phones on reproduction has been growing in many countries. The aim was to assess the morphological parameters, survival rate and development of mouse in-vitro embryos obtained by natural ...

ژورنال: سنجش و ایمنی پرتو 2013

Use of consumer products applying optical radiation (ultraviolet, visible and infrared radiation) sources is growing, in the society which also simplifies everyday ordinary jobs as well as raising the accuracy. There is some phobia in general public on such instruments that have not been approved scientifically. On the other hand optical radiation can cause health hazards especially for eyes an...

Journal: :iranian journal of radiation research 0
k. rajesha nairy depatment of studies in physics, mangalore university, mangalagangotri-574 199, india n.n. bhat radiological protection and advisory division, bhabha atomic research center, mumbai-400 085, india p. joseph depatment of studies in physics, mangalore university, mangalagangotri-574 199, india g. sanjeev depatment of studies in physics, mangalore university, mangalagangotri-574 199, india n. yerol depatment of studies in physics, mangalore university, mangalagangotri-574 199, india

background: exposure to ionizing radiation is known to induce oxidative stress followed by damage to critical biomolecules like lipids, proteins and dna through radiolysis of cellular water. since radiation has been widely used as an important tool in therapy of cancer, the detailed investigation regarding the dna damage and repair kinetics would help to predict the radiation sensitivity of cel...

2011
M. Audette-Stuart T. Yankovich

Adaptive responses were observed using the micronucleus frequency in bullfrog tadpoles. In tanks in which control tadpoles were placed in contact with tadpoles that were previously housed in tritiated water (3.0× 104 Bq/L), the cells from all animals responded as though they were “adapted”. This suggests that direct exposure to 3.0× 104 Bq/L tritium contributes to an increased resistance to a h...

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