[Hygienic and antiepidemic provision of the utilization of solid waste from long-distance trains].

Based on the hygienic analysis of the currently available methods for decontamination and processing of solid waste from long-distance trains, the authors have developed a system for its collection and utilization. The hygienic aspects of the reconstruction and construction of railway objects are presented by taking into account the proposed system for refuse collection and processing.

[Hygienic problems of protecting water reservoirs during washing of freight cars].

The authors analyze the hygienic problems related to utilizing the recirculation water supply for washing freight cars. Hygienic standards for water quality in open systems of technical water supply to railway enterprises, first developed in 1994, are presented. Measures aimed at prevention of discharge of the remainder of freight into waste water are proposed, including the collection and realization thereof.

[Problems of hygienic safety of passenger transportation].

Research in the sphere of railway hygiene helped develop sanitary regulations for railway stations, centers for preparation of passenger cars for exploitation, train restaurants, etc. The authors demonstrate the advances in prophylactic disinfection of stations and cars, in assessment of the hygienic hazards of polymeric materials used in car making and of the microclimate in the cars, etc. Trends for investigation in railway transport hygiene are outlined.

[Dynamics of mental and physical capacities of Moscow's schoolchildren administered vitamins].

Mental and physical capacities were studied in schoolchildren aged 6-10, 11-13 and 14-17 years in the autumn-spring period during vitamin administration of "Undevitum". The six-month vitamin administration produced a positive effect on the functional state of the schoolchildren that was expressed in the improvement of their mental and physical capacity parameters.

[Consumption of basic foods, state of health and physical work capacity of middle school students].

Actual nutrition, health state and physical working capacity were studied in schoolchildren of three age groups after intake of the polyvitamin "Undevitum" during a month. The results of the investigation conducted have shown that prophylactic measures produced a positive effect on the schoolchildren aged from 11 to 13 and from 14 to 17 years who received 1 degree of "Undevitum" daily. No positive effect was recorded in schoolchildren aged 7-10 years who received 1 degree of "undevitum"/day, every other day.