1) OR VIPs 
A news service run by the London Stock Exchange which carries all announcements made to the market by London listed companies....more on RNS
See regulatory news service
Regulatory News Service. A service operated by the Exchange, in its role as competent authority for listing, which ensures that price-sensitive information from listed companies is collected and then disseminated to all RNS subscribers at the same time. Return to the top of the page
Respiratory Nursing Society
The Exchange's Regulatory News Service - which ensures that price sensitive information from listed and AIM companies, and certain other bodies, is disseminated to all RNS subscribers at the same time.
A UTRA Radio Network Subsystem in the UMTS 3G system. Each RNC is a CRNC (Controlling RNC) to several base stations (called Node B in UTRA) via the Iub interface. The CRNC and its Node Bs is a RNS (Radio Network Subsystem). The GSM equivalent is a BSS (Base Station Subsystem). The RNS is connected to the CN (the UMTS core network) via the Iu interface. A UMTS UE (mobile) may be in communication with several RNSs simultaeneously (see RNC, SRNC and DRNC).
...GCF reliable network service. 
Reactive nitrogen species