منابع مشابه
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...
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establishment of new neural connections rather than the modification of existing sets. Blinded octopuses can acquire certain kinds of discriminations based upon tactile or chemical stimulation. The results of a textual discrimination experiment with grooved cylinders suggest that the "discrimination of the topographical features of objects touched may be based simply upon the proportion of sens...
متن کاملRadiation 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 ...
متن کاملThe Initial Effects of Ionizing Radiations on Cells
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متن کاملStudies on the Mechanism of Action of Ionizing Radiations
On x-irradiation of the eggs and sperm of Arbacia punctulata there was inhibition of respiration with relatively large doses, whereas there was an increase with small doses. The dose required to produce an increase of respiration depended on the degree of sensitivity of the cell to the effect of ionizing radiation. Sperm cells were more sensitive; then came fertilized eggs; unfertilized eggs we...
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ژورنال
عنوان ژورنال: Radiologia Brasileira
سال: 2014
ISSN: 0100-3984
DOI: 10.1590/s0100-39842014000200004