There may be lack of motivation or the ability to begin an activity; the person tires easily once the activity has begun; and. the person has mental fatigue or difficulty with concentration and memory to start or complete an activity.
plural ID's or IDs : a document (such as a card) bearing identifying information about and often a photograph of the individual whose name appears on it â called also ID card, identification card, identity card
AIS-Using the Benefits of the Automatic Identification System. What is AIS and who has it? The Universal Shipborne Automatic Identification System (AIS) is a vessel tracking system capable of communicating navigation information automatically between AIS equipped vessels and coastal authorities.