background: after radiation therapy (rt), some health hazards including dna damages may occur where melatonin can play a protective role due to free radical generation. on the other hand, serious accidental overexposures may occur during rt due to nuclear accidents which necessitate the need for study on exposure to high-dose radiations during treatments. objective: the aim of this study was to...

Recent world events have increased concern that hospitals must be prepared for radiological emergencies. Emergency departments (EDs) must be ready to treat patients suffering from injuries in combination with radiation exposure or contamination with radioactive material. Every hospital should have a Radiological Emergency Medical Response Plan, tested through periodic drills, which will allow e...

Radiation-induced bystander effect (RIBE) is a biological process that has received attention over the past two decades. RIBE refers to a plethora of biological effects in non-irradiated cells, including induction of genetic damages, gene expression, cell transformation, proliferation and cell death, which are initiated by receiving bystander signals released from irradiated cells. RIBE brings ...

Background: The natural radionuclides are always present in soil and care needs to be taken to minimize the radiation dose to humans. These radionuclides are mostly gamma ray emitting radionuclides which contribute to the radiation dose in long term behavior of radionuclides in soil. Health hazards associated with natural radioactivity are of great concern and it is necessary to assess risk due...

Introduction: Nuclear radiation is potentially harmful to humans and soil contamination with radionuclides is the main source of human radiation exposure. These radionuclides can., enter to human body through the food chain. In this study, 34 soil samples were collected from between Arak city and Shazand Power Plant over 20 km length and analyzed. Materials and Methods: The specific activities ...

Background: The potential hazards of exposure to radiation from radon have been of great concern worldwide, as it is associated with an increased risk of lung cancer. Radon (222Rn) and its progeny are the main sources of radioactivity in the environment. The half-life of 222Rn (3.82 days) is long enough for it to diffuse into and build up in homes. 220Rn or thoron from the 232Th series, and 219...

Since the advent of catheter-based coronary intervention three decades ago, steady technological progress has led to the development and refinement of intracoronary devices [1]. Despite technological advances, the fundamental workflow of coronary procedures remains unchanged. Interventionalists still wear heavy protective lead aprons, stand at the bedside for long hours and manually manipulate ...

Estimation of the genetic hazards of ionizing radiation in men is based largely on the frequency of transmitted specific-locus mutations induced in mouse spermatogonial stem cells at low radiation dose rates. The publication of new data on this subject has permitted a fresh review of all the information available. The data continue to show no discrepancy from the interpretation that, although m...

All of these materials are transported on land, sea or in the air in compliance with regulations which are now universally based on the IAEA Regulations for the Safe Transport of Radioactive Materials Ref. [1]. These regulations are designed to ensure adequate protection of transport workers, the public and the environment against the hazards of external radiation, the spread of radioactive con...