PHYSICS APPLIED TO ANAESTHESIA VIII: IONIZING RADIATIONS

Physics Applied to Anaesthesia

Medical knowledge on ionizing radiations

I have read with great concern the article written by Borém et al. (1) – " The knowledge about diagnostic imaging methods among primary care and medical emergency physicians " –, published by Radiologia Brasileira in December/2013. The presented results show in a hard-hitting way that physicians are educated even without an appropriate idea about what is ionizing radiation, radiological imaging...

The assessment of function, histopathological changes, and oxidative stress in liver tissue due to ionizing and non-ionizing radiations

Background: Compared to past decades, humans are exposed to rapidly increasing levels of radiofrequency electromagnetic radiations (RF-EMF). Despite numerous studies, the biological effects of human exposure to different levels of RF-EMF are not fully understood, yet. This study aimed to evaluate the bioeffects of exposure to "900/1800 MHz" and “2.4 GHz" RF-EMFs, and x-rays as well as their pot...

Radiation Effects and Damage 1. Ionizing Radiations

The detrimental consequences of radiation are referred to as radiation damage. To understand the effects of radiation, one must first be familiar with the radiations and their interaction mechanisms. Further, the fundamental characteristics of the material(s) being irradiated must also be understood. A brief summary of the characteristics of radiation is first presented below. This is followed ...

Sensitivities of different bacteriophage species to ionizing radiations.

where S is the survival ratio (number of plaque forming phage particles after exposure to a dose D of radiation) /(number of plaque-forming phage particles before exposure), and R is the radiosensitivity of the phage (for a recent discussion of this subject, see Pollard, 1954). The radiosensitivities of a number of bacteriophage species have been measured, and are presented here and compared wi...