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.
Prohibition: A federal agency is calling for a nationwide ban on all cellphone use while driving. Once again, Washington busybodies are exaggerating a problem because it happens to be a behavior they don't approve of. Last Tuesday, the National Transportation Safety Board recommended that all cellphone use by drivers, including texting, be outlawed.