The fourth edition of the international soil classification system World Reference Base for Soil Resources (WRB) was released in 2022. It maintains 32 Groups at first level. Most qualifiers (second level) and most diagnostic horizons, properties materials were maintained but some abolished new ones introduced. main part is followed by six annexes, them are new. For time, WRB has a Field Guide (...

The Executive Board of the World Health Organization at its forty fourth session in 1970 chose as the subject for the Technical Discussions to be held during the Twenty fourth World Health Assembly in May 1971: "Mass Health Examinations as a Public Health Tool". It was hoped that the discussions would encompass (1) the broad field of mass health examinations (МНЕ) under different epidemiologica...

Amethod for finding the world function of Robertson-Walker spacetimes is presented. It is applied to find the world function for the k = 0, γ = 2, solution. The close point approximation for the RobertsonWalker world function is calculated upto fourth order.