RSI may refer to:

Broadcasting services

Radio Singapore International Mediacorp Pte. Ltd., doing business as Mediacorp and stylised as mediacorp, is a media conglomerate in Singapore. Owned by Temasek Holdings—the holding company of the Government of Singapore—it owns television, radio, and digital media prope ...

, a former radio broadcaster in Singapore * Radio Slovenia International, the international service of Slovenian state radio *

Radiotelevisione svizzera di lingua italiana Radiotelevisione svizzera di lingua italiana (; RSI, abbreviated as RTSI until 28 February 2009) is a Swiss public broadcasting organisation, part of SRG SSR. RSI handles production and broadcasting of radio and television programs in Italian f ...

, a Swiss radio and television broadcaster

Computing

RSI register x86 (also known as 80x86 or the 8086 family) is a family of complex instruction set computer (CISC) instruction set architectures initially developed by Intel based on the Intel 8086 microprocessor and its 8088 variant. The 8086 was introd ...

, a 64-bit processor register of x86 CPUs * Relational Semantics, Inc., an American software company

Finance

Relative strength index The relative strength index (RSI) is a technical indicator used in the analysis of financial markets. It is intended to chart the current and historical strength or weakness of a stock or market based on the closing prices of a recent trading perio ...

, a technical indicator used in the analysis of financial markets *

Revenue and Social Insurance number The Personal Public Service Number (PPS Number) ( ga, Uimhir Phearsanta Seirbhíse Poiblí, or ) is an identifier issued by the Client Identity Services section of the Department of Social Protection, on behalf of the Minister for Social Protec ...

, an identifier used for tax and welfare purposes in Ireland

Medicine and psychology

Rapid sequence induction In advanced airway management, rapid sequence induction (RSI) – also referred to as rapid sequence intubation or as rapid sequence induction and intubation (RSII) or as crash induction – is a special process for endotracheal intubation that is ...

, a method of emergency intubation, involving paralytics and sedation *

Repetitive strain injury A repetitive strain injury (RSI) is an injury to part of the musculoskeletal or nervous system caused by repetitive use, vibrations, compression or long periods in a fixed position. Other common names include repetitive stress disorders, cumula ...

, a disorder affecting muscles, tendons and nerves from repetitive movements, forceful exertions, vibrations, mechanical compression, or sustained/awkward positions *

Residual self image Self-image is the mental picture, generally of a kind that is quite resistant to change, that depicts not only details that are potentially available to an objective investigation by others (height, weight, hair color, etc.), but also items that h ...

, the concept that individuals tend to think of themselves as projecting a certain physical appearance *

The Real In continental philosophy, the Real refers to the remainder of reality that cannot be expressed, and which surpasses reasoning. In Lacanianism, it is an "impossible" category because of its opposition to expression and inconceivability. In ...

, The Symbolic, and The Imaginary, a theory in Lacanian psychoanalysis concerning human perception of reality

Physics

RSI-value In the context of construction, the R-value is a measure of how well a two-dimensional barrier, such as a layer of insulation, a window or a complete wall or ceiling, resists the conductive flow of heat. R-value is the temperature difference per ...

, a measure of how well a two-dimensional barrier resists the conductive flow of heat * ''

Review of Scientific Instruments ''Review of Scientific Instruments'' is a monthly peer-reviewed scientific journal published by the American Institute of Physics. Its area of interest is scientific instruments, apparatus, and techniques. According to the ''Journal Citation Report ...

'', a scientific journal

Other organisations

* RSI Corporation, an American safety compliance consulting firm * RADARSAT International, a provider of data and information derived from the Canadian RADARSAT satellite program overseen *

Red Sports International The International Association of Red Sports and Gymnastics Associations, commonly known as Red Sport International (RSI) or Sportintern was a Comintern The Communist International (Comintern), also known as the Third International, was a So ...

, an international sports organization supported by the Communist International *

Research Science Institute The Research Science Institute (RSI) is an international summer research program for high school students. RSI is sponsored by the Center for Excellence in Education (CEE) and hosted by MIT in Cambridge, Massachusetts. RSI brings together the top S ...

, an international summer research program for high school students *

Religious Science International The Centers for Spiritual Living, or CSL, is a spiritual philosophy promoting Religious Science that was founded by Ernest Holmes in 1926. Before 2011, it was two organizations known as United Centers for Spiritual Living (formally, United Church ...

, a religious organization

Other uses

* ''

Ṛṣi ''Rishi'' () is a term for an accomplished and enlightened person. They find mentions in various Vedic texts. Rishis are believed to have composed hymns of the Vedas. The Post-Vedic tradition of Hinduism regards the rishis as "great yogis" or ...

'', a term for an accomplished and enlightened person in Hinduism and Buddhism *

Regional Snowfall Index The Regional Snowfall Index (RSI) is a scale used by NOAA to assess the societal impact of winter storms in the eastern two-thirds of the United States and classify them into one of six categories. The system was first implemented in 2014, and is ...

, a system used to assess the impact of winter storms in the United States *

Italian Social Republic The Italian Social Republic ( it, Repubblica Sociale Italiana, ; RSI), known as the National Republican State of Italy ( it, Stato Nazionale Repubblicano d'Italia, SNRI) prior to December 1943 but more popularly known as the Republic of Salò ...

or ''Repubblica Sociale Italiana'', a puppet state of Nazi Germany during the later part of World War II {{disambiguation