Peripatetic school used by earlier philosophers such as Socrates. Aristotle and his colleagues first began to use the Lyceum in this way about 335 BC, after which Aristotle left Plato's Academy and Athens, and then returned to Athens from his travels about a dozen years later. Because of the school's association with the gymnasium, the school also came to be referred to simply as the Lyceum. Some modern scholars argue that the school did not become formally institutionalized until Theophrastus took it over, at which time there was private property associated with the school. Originally at least, the Peripatetic gatherings were probably
Permit To Work Permit To Work Permit To Work (PTW) refers to management systems used to ensure that work is done safely and efficiently. These are used in hazardous industries and involve procedures to request, review, authorise, document and most importantly, de-conflict tasks to be carried out by front line workers. Permit to work is an essential part of control of work (COW), the integrated management of business critical maintenance processes. Control of work is made up of permit to work, hazard identification and risk assessment (RA), and isolation management (IM). Permit to work is a core element of integrated safe system of