Types of abstracts. There are two types of abstracts: descriptive and informative. They have different aims, so as a consequence they have different components and styles. There is also a third type called critical, but it is rarely used.
Samsung Galaxy Note 7 smartphone has been banned from all aircraft in the United States. The US Transportation Department and other agencies have banned passengers from carrying on the devices or putting them inside checked baggage during flights.
The National Transportation Safety Board unanimously recommended Tuesday that all states ban the use of cell phones and other portable electronics by automobile drivers. Though the board cannot enact regulations itself, its suggestions are taken seriously by lawmakers.