Introduction: Long bone examination in standing position, as one of the diagnostic methods in plain radiography, is most commonly used in the field of medical diagnosis, especially leg length discrepancy. However, with regard to this examination, reproductive organs are exposed to radiation as they are placed in the adjacent area to the long bone. Due to the sensitivit...

objectives: this study focuses on the hematological parameters change and age in radiation field workers. the study aimed to identify the effect of radiation on hematological parameters and their relation to age and duration of the experience in radiation field workers. material and methods: this study was conducted in the physiology research center in collaboration with thalassemia and hemogl...

conclusions portable radiological examinations did not expose healthcare providers to high doses of ionizing radiation. nurses’ radiation protection knowledge was limited and hence, they require in-service education programs. results the mean of participants’ radiation protection knowledge was 4.77 ± 1.38. the most prevalent radiation protection behavior of nurses was leaving the intensive care...

objective(s):electromagnetic radiations which have lethal effects on the living cells are currently also considered as a disinfective physical agent.   materials and methods: in this investigation, silver nanoparticles were applied to enhance the lethal action of low powers (100 and 180 w) of 2450 mhz electromagnetic radiation especially against escherichia coli atcc 8739. silver nanoparticles ...

Three nearly simultaneous events around the end of the 19th century, i.e., the discovery of X‐rays by Roentgen in 1895, natural radioactivity by Antoine‐Henri Becquerel in 1896 and isolation of Radium by the Curies' in 1898 opened the nuclear era which has changed broadly the worlds of physics, biology and medicine. At the close of the 20th century, fundamental discoveries in biology at molecul...

Introduction: Becuase of the most radiation dose receiving by human is related to medical radiation exposures, and also Computed Tomography (CT) is a special type of radiography that is one of the main method of radiation exposure today, and it's growing increasingly. Therefore, radio technologists working in CT scan imaging centers, are at risk of radiation. Due to the high am...

three nearly simultaneous events around the end of the 19th century, i.e., the discovery of x‐rays by roentgen in 1895, natural radioactivity by antoine‐henri becquerel in 1896 and isolation of radium by the curies' in 1898 opened the nuclear era which has changed broadly the worlds of physics, biology and medicine. at the close of the 20th century, fundamental discoveries in biology at mo...

The objective of this study is to evaluate the energy efficiency of residential buildings by using natural energy and optimizing the choice of materials for heat and cold saving with the Ecotect simulation software. According to analysis and simulation was found that the optimum material of main building components in a mild climate zone of Rasht city is the Brick Conc block Plaster for wall wi...