Wada states: "A specified substance is a substance which allows, under defined conditions, for a greater reduction of a two-year sanction when an athlete tests positive for that particular substance".
This concept of mode reflects a universal characteristic of the semiological unit (the 'sign'): it stands for something other than itself – this is its 'signified'/ meaning – and its shape, i.e., the 'signifier', must be formed of some substance which allows the human body to sense it.
The explanatory work is first of all the mechanism (the chemical composition of substance which allows the reaction), and second, the context (the physical conditions which allow the mechanism to come into operation).
You are injected with a radioactive substance, which allows the doctor to create an image of your thyroid.[21].[21]
Mr. Ashcroft relied on the Controlled Substances Act, which allows the federal government to penalize doctors if they prescribe drugs for anything but legitimate medical purposes.
In July, the parliament passed the Psychoactive Substances Bill which allows for the strictly regulated, but legal, sale of a number of synthetic narcotics commonly known as 'legal highs' or 'party pills.'.
In the meantime, the feds approved a six-month extension of a temporary exemption to the Controlled Drugs and Substances Act, which allows some sites approved by the Liberals to keep their doors open.
Production of psilocybin and MDMA is legal under the UN Protocol on Psychotropic Substances of 1971, which allows for the use of Schedule 1 substances for medical and scientific research.
Between the last two items in that series, Eddie swallows Vernon's pill, a not-quite-legal substance called NZT, which allows him to tap into previously neglected areas of his brain.
A CCC model was used for analyses, which allows substance use to be conceptualized as a two-stage process incorporating initiation of substance use and progression to heavier use [ 23– 25].
