1 Conduction anesthesia, commonly known as regional or local anesthesia, blocks transmission of nerve impulses between a targeted part of the body and the spinal cord, which causes loss of sensation in the targeted body part.
E-commerce sales are sales of goods and services where the buyer places an order, or the price and terms of the sale are negotiated over an Internet, mobile device (M-commerce), extranet, Electronic Data Interchange (EDI) network, electronic mail, or other comparable online system. Payment may or may not be made online.
Although in the vernacular e-commerce usually refers only to the trading of goods and services over the Internet, broader economic activity is included. E-commerce consists of business-to-consumer and business-to-business commerce as well as internal organizational transactions that support those activities. E-commerce originated in a standard for the exchange of business documents, such as orders or invoices, between suppliers and their business customers. Those origins date to the 1948â49 Berlin blockade and airlift with a system of ordering goods primarily via telex.