Get Certified Today! The Certified Emergency Nurse (CEN) certification is specific to emergency nursing and measures the attainment of a defined body of nursing knowledge pertinent to that specialty. Currently, more than 30,850 nurses hold the CEN certification. Although there are CENs throughout the world, the CEN exam is based on emergency nursing practice in the United States.You must pass the exam to attain initial CEN certification. To qualify for the exam, you must hold a current unrestricted Registered Nurse license in the United States or its Territories.
At its core, e-commerce refers to the purchase and sale of goods and/or services via electronic channels such as the Internet. E-commerce was first introduced in the 1960s via an electronic data interchange (EDI) on value-added networks (VANs).
DEFINITION of 'Electronic Retailing-E-tailing'. The sale of goods and services through the Internet. Electronic retailing, or e-tailing, can include business-to-business and business-to-consumer sales.E-tailing revenue can come from the sale of products and services, through subscriptions to website content, or through advertising. It is a play on the words retail and e-commerce..Next Up.EFINITION of 'Electronic Retailing-E-tailing'. The sale of goods and services through the Internet. Electronic retailing, or e-tailing, can include business-to-business and business-to-consumer sales.