posted 04-20-2007 05:49 PM                    

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* RSS (file format), Really Simple Syndication, Rich Site Summary or RDF Site Summary, several similar forms of web syndication used by news websites and weblogs
* Radio Service Software, a proprietary suite of programs sold by Motorola
* Relay Spam Stopper, a Spam Blacklist run by Mail-abuse.org[1], operated by MAPS (owned by Trend Micro)
* Resident Set Size or Resident Segment Size, a measurement of RAM usage; represents actual physical RAM being used
* Random Shutdown Syndrome, a phenomenon affecting MacBook notebooks which overheat and shut down without warning

Mathematics

* Root-sum-square, the square root of the sum of the squares of the elements of a data set. To perform this operation, which is called "taking the RSS": square each of the elements, add up the results, and take the square root of the total. Used colloquially to refer to the magnitude of a vector. Compare this to root mean square.

Technology

* Range Safety System, used in the Space Shuttle Solid Rocket Booster and other systems
* Reduced Space Symbology, the former name of GS1 DataBar, an approved barcode of GS1
* Road Sensing Suspension, a part of the Northstar System brand of General Motors automotive technology
* Roland Sound Space by Roland Corporation
* Rotating Service Structure, used in the Space Shuttle program launches
* Robotics Science and Systems Conference. http://www.robotics-conference.org/

Science

* Recombination signal sequences, in immunological genetics, direct somatic recombination of gene segments
* Residual sum of squares, in regression models

Medicine

* Repetitive strain injury, also Repetitive stress syndrome, an overuse syndrome
* Russell-Silver syndrome

Society

* Rashtriya Swayamsevak Sangh, a right wing Hindu nationalist organization in India.
* Recruiting Sub-Station, a satellite office of a main military recruiting station.
* Regional Spatial Strategy provides a regional level planning framework for the regions of England
* Regional Security System, an agreement between several countries situated in the Eastern Caribbean region. The RSS acts as a unit made up of a series of defence and disaster management forces.
* Religious and Social Studies, a subject offered in many secondary schools in the United Kingdom
* Royal Statistical Society, the main professional body for statisticians in the UK
* Rural Sociological Society

* Rochester Subway, which had the AAR reporting mark, RSS
* Rockdale, Sandow and Southern Railroad, which currently has the AAR reporting mark RSS

Agency

* Rastriya Samachar Samiti, the national news agency of Nepal.

School

* Red Swastika School, Singapore

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