The use of each type of chemotherapy drug (or combination of drugs) for metastatic breast cancer is called a âlineâ of treatment. For example, the first chemotherapy used is called the âfirst-lineâ treatment and the second is called the âsecond-lineâ treatment.
RigNet Inc. is a data network infrastructure provider serving the remote communications needs of the oil and gas industry.
SONET defines optical signals and a synchronous frame structure for multiplexed digital traffic. It is a set of standards that define the rates and formats for optical networks specified in ANSI T1.105, ANSI T1.106, and ANSI T1.117.oth SONET and SDH are based on a structure that has a basic frame format and speed. The frame format used by SONET is the Synchronous Transport Signal (STS), with STS-1 as the base-level signal at 51.84 Mbps.