INTERFACE WIDENING. 1  Assessment of width. Radiolucent zones wider than 2 mm are evidence for loosening. 2  Assessment of location Acetabular component 1-2 mm radiolucent zone cement-bone interface of superolateral aspect (Gruen zone 1) are frequently seen and not a sign of loosening.
When bar service is offered to guests at an event free of charge, it is known as a âhost bar.â This is in contrast with a cash or no-host bar, at which guests are expected to pay for their own drinks.
The term 'Point of Sale' (POS) is ambiguous. It can refer to the cash till or payment machine as a whole, or just to the bit that reads the card. Usually, it means the whole cash register, and sometimes includes the human operator as well. There are at least two types of payment card.