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Radioactive radiation is the common part of our lives due to natural sources producing the radioactive radiation. The radiation coming from the nuclear power plants is very law comparing to natural or common sources unless some accident happens. The paper deals with two well-known major nuclear power plant incidents and one local silent accident which took place in Czechoslovakia. Three Miles Island as an accident with no direct fatalities is introduced from the medical consequences point of view. Some longterm re...

The paper deals with the causes of numerous local floods and flash floods in forest areas and neighbouring location. Forest wood mining forest roads and approach paths are proven to be the main cause of forest drainage and loss of its accumulation function. Forest roads intended for logging cause drainage of large areas, easy runoff of rainwater as well as subsequent drying of the soil, weakening of trees and devastation of the forest. Two successful projects for the recultivating of forest roads have been present...