Aware that terminology like âmental retardationâ and âretardedâ has become derogatory, the organization changed its name to just âThe Arcâ in 1992. Back when The Arc was founded, the term âretardedâ was a sign of progress to parents of children with what we now call intellectual disabilities.
The term biological agent is defined in the Control of Substances Hazardous to Health Regulations 2002 (COSHH) and means a micro-organism, cell culture, or human endoparasite which may cause infection, allergy, toxicity or other hazard to human health.xposure to carcinogens, mutagens and biological agents. Regulation 9 requires employers and self-employed workers to report cases of occupational cancer, and any disease or acute illness caused by an occupational exposure to a biological agent.
Ethanethiol is the organic compound with the formula CH3CH2SH. It consists of an ethyl group, CH3CH2, abbreviated Et, attached to a thiol group, SH, and the entire molecule is often abbreviated EtSH.he compound is structurally similar to ethanol by replacement of O by S. This change leads to many different properties, the most infamous of which is the strong odour of EtSH. Ethanethiol is also more volatile than ethanol due to its diminished ability to engage in hydrogen bonding.