[Dietary intake of calcium in pre-school and school children in Russia: main food sources and eating occasions].

It is known that adequate calcium intake determines formation of skeleton and genetic predisposition of its weight and density peak. Optimal calcium intake in the childhood determines risk reduction of density loss and osteoporosis in the adulthood. This research explored contribution of different food sources, as well as eating occasions on calcium dietary intake among preschool and school children (4-13 years old).

[Dietary intake analysis of Russian children 3-19 years old].

The objectives of this study was to analyze energy and nutrient intakes in Russian children 3-19 years old, based on the National Survey conducted by Rosstat among 45 thousand households in all regions of Russia in 2013. Dietary intake assessment was investigated using method of 24-hour recall. The analysed sample consisted of 34 637 records.

[The epidemiological and clinical characteristics of malaria under the present conditions of Tajikistan].

The highest malaria morbidity rates have been observed in the Tajikistan's Khatlon Region that is contiguous with Afghanistan. This area is notorious for its high malariogenicity ("susceptibility" according to the WHO terminology), caused by natural climatic factors, as well as a significant vulnerability associated with socioeconomic conditions (intensive migration of populations among which there are many infected subjects). In children, tropical malaria is generally characterized by an acute onset, abnormal fever, and its polymorphism of clinical manifestations that are exemplified by the lack of typical malaria paroxysms, as well as a gradual progression of parasitemia during the first malaria attacks.

[Use of metabolic and pathogenetic criteria in group standardization of organically active chlortriazine dyes].

The article presents research data related to the biotransformation, intoxication mechanisms and pathogenic properties of chlortriazine dye-stuffs. All the dye-stuffs studies were characterized by similar intoxication properties and pathogenesis, and were related to the 3rd class of hazardous substances. The MAC for the organic chlortriazine dye-stuffs constituted 2 mg/m3.