Drug education Drug education Drug education is the planned provision of information, resources, and skills relevant to living in a world where psychoactive substances are widely available and commonly used for a variety of both medical and non-medical purposes, some of which may lead to harms such as overdose, injury, infectious disease (such as HIV or hepatitis C), or addiction. Planning includes developing strategies for helping children and young people engage with relevant drug-related issues during opportunistic and brief contacts with them as well as during more structured sessions. Drug education enables children, youth and adults to develop the knowledge, skills and
Knaster's condition Knaster's condition In mathematics, a partially ordered set "P" is said to have Knaster's condition upwards (sometimes property (K)) if any uncountable subset "A" of "P" has an upwards-linked uncountable subset. An analogous definition applies to Knaster's condition downwards. The property is named after Polish mathematician Bronisław Knaster. Knaster's condition implies the countable chain condition (ccc), and it is sometimes used in conjunction with a weaker form of Martin's axiom, where the ccc requirement is replaced with Knaster's condition. Not unlike ccc, Knaster's condition is also sometimes used as a property of a topological space, in which case it means