On the Number of Unbordered Factors

We illustrate a general technique for enumerating factors of k-automatic sequences by proving a conjecture on the number f(n) of unbordered factors of the Thue-Morse sequence. We show that f(n) = 4 and that f(n) = n infinitely often. We also give examples of automatic sequences having exactly 2 unbordered factors of every length

Результаты экологического мониторинга приавтомагистральной территории автодороги «Киев-Ковель-Ягодин» М-07

It is discovered natural distribution of heavy metals in soils of motorway side’s zone of the road «Kyiv-Kovel-Yahotyn» depending on the distance of road-bed and windrose. It is determined a specific accumulative tendency to plants in respect of heavy metals. It is substantiated and recommended for plantations the plants’ assortment with the purpose of diminution the negative influence of pollutants on environment

Effects of wind erosion on the environment and human in the radioactive contamination of the western Polesye of Ukraine

The experiment showed that the best effect in the protection of soddy podsolic soil with contamination density of 1,5 Cu/cm2 from wind erosion and in the reduction on accumulation raidionuclides in fields crops has chisel tillage