Facultatea de Fizică
Universitatea "Al.I.Cuza" Iaşi
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| Titlu: Bazele biofizice ale poluării electromagnetice |
| Autori: Lavinia Curecheriu, Anton Mihaela Cristina, Tănase – Pânzaru Dumitriţa, Răileanu Gabiela,
Cozma Valentin, Dorina Creangă |
| Afiliere: Universitatea „Al. I. Cuza“, Facultatea de Fizică, 700506 Iaşi |
| Abstract: Electromagnetic pollution represents one of the most important issues in the frame of protection against radiations. In this respect we would like to emphasize the biological and biophysical basis of the negative impact of the electromagnetic waves on living organisms, for some scientific hours with high school students. The students must have knowledge about electricity and cells biology in order to understand the interaction between electromagnetic waves and living bodies. At cellular level, the explanation of the electric proprieties of tissues and organs is based on the existence of the electric carries within the internal medium (cytoplasm) and extern medium of cells (intercellular medium). These carries are small ions ( like Na+, Ca2+, Mg2+, Cl-) or macromolecular ions) so that one can admit that living organisms are electrolytical conductors. The components of cells membranes are electric dipolar structure (proteins and lipids) who determine the electric properties of cells membranes. The students will be aide to understand that due to the electrical properties of cells membranes, the living organisms are sensitive to the action of exogene electromagnetic field. One need to keep in mind also that, in biosphere the are many electromagnetic field sources, with various intensities and frequencies, generated by natural cosmic and atmospheric radiations or by human activities. The impact of these on tissues and organs of animals and plants can determine physiological and pathological perturbations, the understanding of their biophysical background requiring complementary studies of physics and biology. |
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