Plants of Different Monocot Families Differ in Nitrogen and Phosphorus Contents in Leaves.

The folia content of nitrogen (N) and phosphorus (P) were studied in five monocot families: Amaryllidaceae, Cyperaceae, Iridaceae, Orchidacea, and Poaceae. The species of different monocot families were found to have different amount of N and P and their ratio in the leaves. The lowest N content was in Iridaceae and the highest was in Amaryllidaceae.

Long-term impact of the Tyrnyauz tungsten-molybdenum mining and processing factory waste on environmental pollution and children's population.

We studied the consequences of the long-term impact of remediated tailing ponds from the Tyrnyauz tungsten-molybdenum mining and processing factory on the environmental pollution and children living in the area. For more than 60 years, the factory has been engaged in the development of tungsten-molybdenum deposits by open-pit and mine methods and the enrichment of the extracted ore. More than 252,771 thousand tons of waste accumulated in its dumps and tailings ponds.

[Effect of recultivated wastes of mining factories on children residing in the district of their location].

Wastes and tailing ponds of Tyrnyauz tungsten and molybdenum factory are the main sources of heavy metal incoming into environment in Kabardino-Balkarian Republic. The factory was closed more than 10 years ago and the recultivation of it’s tailing ponds, where accumulated hundreds of millions tones of wastes, was completed. The aim of this investigation was an assessment of their possible influence on children residing in the vicinity of these tailing ponds (village Bylym).

Studies of antimutagenic effects of vitamins A and C in humans.

We studied antimutagenic effects of vitamins A and C (in recommended daily doses for 30 days) and their effects on the kinetics of human buccal epitheliocytes. Buccal swab specimens were collected in 29 students before and after vitamin course. The cytogenetic parameters (cells with micronuclei and protrusions) and parameters of proliferation (binuclear cells and cells with double nuclei) and nucleus destruction (karyopyknosis, karyorrhexis, karyolysis, etc.