Trends in childhood leukemia incidence in urban countries and their relation to environmental factors, including space weather.

Leukemia is the most common cancer in children. Its incidence has been increasing worldwide since 1910th, suggesting the presence of common sources of the disease, most likely related to people's lifestyle and environment. Understanding the relationship between childhood leukemia and environmental conditions is critical to preventing the disease.

Vascular Plants Flora of Mire Ecosystem of the Bolshoy Shantar Island (the Far East of Russia).

This article presents the findings of the authors' study of the mire ecosystem vascular plants of the island of Bolshoy Shantar, which is the largest island in the Shantar archipelago. Bolshoy Shantar Island is an insular ecosystem, the study of which can provide insight into the natural "polygons" of evolution at work. The botanical research was conducted through the application of traditional techniques of floristic and geobotanical studies.

[Peat peloids from the Bichevskoye deposits of the Khabarovsk region and their physicochemical characteristics].

The authors present information about the resources of sulfide silt peloids at the Bichevskoye peat field of the Khabarovsk region. Their physicochemical properties, the fragmentary carbon composition of the liquid and concentrated peat phases, as well as the elemental composition of the organic compounds present in peat hydrolysates are described. The results of high-tech investigations confirm the presence of biologically active humic substances in the peat.