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.
In solid modeling and computer-aided design, boundary representationâoften abbreviated as B-rep or BREPâis a method for representing shapes using the limits. A solid is represented as a collection of connected surface elements, the boundary between solid and non-solid.