In contrast to proteins, which can have either a net positive or net negative charge, nucleic acids have a consistent negative charge imparted by their phosphate backbone, and migrate toward the anode. Proteins and nucleic acids are electrophoresed within a matrix or gel.
USAePay is a payment gateway that offers a POS solution and a virtual terminal. The company was founded in 1998 by GorCorp, a family-owned business. GorCorp still operates USAePay today. The payment gateway began by specializing in the e-commerce industry.
USAA is a pioneer of the concept of direct marketing; most of its business is conducted over the Internet or telephone using employees instead of agents. Until the 1960s the bulk of its business was conducted via mail. In the late 1960s, USAA began a transition from mail to phone-based sales and service.