Set, The Set, SET or SETS may refer to:

Science, technology, and mathematics

Mathematics

Set (mathematics) A set is the mathematical model for a collection of different things; a set contains '' elements'' or ''members'', which can be mathematical objects of any kind: numbers, symbols, points in space, lines, other geometrical shapes, variables, or ...

, a collection of elements *

Category of sets In the mathematical field of category theory, the category of sets, denoted as Set, is the category whose objects are sets. The arrows or morphisms between sets ''A'' and ''B'' are the total functions from ''A'' to ''B'', and the composition o ...

, the category whose objects and morphisms are sets and total functions, respectively

Electronics and computing

Set (abstract data type) In computer science, a set is an abstract data type that can store unique values, without any particular order. It is a computer implementation of the mathematical concept of a finite set. Unlike most other collection types, rather than retrievin ...

, a data type in computer science that is a collection of unique values ** Set (C++), a set implementation in the C++ Standard Library *

Set (command) This article presents a list of commands used by DOS operating systems, especially as used on x86-based IBM PC compatibles (PCs). Other DOS operating systems are not part of the scope of this list. In DOS, many standard system commands were pro ...

, a command for setting values of environment variables in Unix and Microsoft operating-systems *

Secure Electronic Transaction Secure Electronic Transaction (SET) is a communications protocol standard for securing credit card transactions over networks, specifically, the Internet. SET was not itself a payment system, but rather a set of security protocols and formats that ...

, a standard protocol for securing credit card transactions over insecure networks *

Single-electron transistor A single-electron transistor (SET) is a sensitive electronic device based on the Coulomb blockade effect. In this device the electrons flow through a tunnel junction between source/drain to a quantum dot (conductive island). Moreover, the electric ...

, a device to amplify currents in nanoelectronics *

Single-ended triode A single-ended triode (SET) is a vacuum tube electronic amplifier that uses a single triode to produce an output, in contrast to a push-pull amplifier which uses a pair of devices with antiphase inputs to generate an output with the wanted si ...

, a type of electronic amplifier *

Set! Scheme is a dialect of the Lisp family of programming languages. Scheme was created during the 1970s at the MIT AI Lab and released by its developers, Guy L. Steele and Gerald Jay Sussman, via a series of memos now known as the Lambda Papers. ...

, a programming syntax in the scheme programming language

Biology and psychology

Set (psychology) In psychology, a set is a group of expectations that shape experience by making people especially sensitive to specific kinds of information. A ''perceptual set'', also called ''perceptual expectancy'', is a predisposition to perceive things in a c ...

, a set of expectations which shapes perception or thought *Set or

sett A sett or set is a badger's den. It usually consists of a network of tunnels and numerous entrances. The largest setts are spacious enough to accommodate 15 or more animals with up to of tunnels and as many as 40 openings. Such elaborate setts ...

, a badger's den *Set, a small tuber or bulb used instead of seed, especially: **

Potato The potato is a starchy food, a tuber of the plant ''Solanum tuberosum'' and is a root vegetable native to the Americas. The plant is a perennial in the nightshade family Solanaceae. Wild potato species can be found from the southern Unit ...

set **

Onion An onion (''Allium cepa'' L., from Latin ''cepa'' meaning "onion"), also known as the bulb onion or common onion, is a vegetable that is the most widely cultivated species of the genus ''Allium''. The shallot is a botanical variety of the onio ...

set *

SET (gene) Protein SET, also known as Protein SET 1, is a protein that in humans is encoded by the ''SET'' gene. Interactions Protein SET has been shown to interact with: * Acidic leucine-rich nuclear phosphoprotein 32 family member A, * CDK5R1, * KLF5 ...

, gene for a human protein involved in apoptosis, transcription and nucleosome assembly * Single

Embryo Transfer Embryo transfer refers to a step in the process of assisted reproduction in which embryos are placed into the uterus of a female with the intent to establish a pregnancy. This technique (which is often used in connection with in vitro fertilizati ...

, used in ''in vitro'' fertilization

Physics and chemistry

* A chemical change in an adhesive from unbonded to bonded ** Set, to make/become solid; see

Solidification Freezing is a phase transition where a liquid turns into a solid when its temperature is lowered below its freezing point. In accordance with the internationally established definition, freezing means the solidification phase change of a liquid ...

* Stress–energy tensor, a physical quantity in the theory of fields *

Single electron transfer In chemistry, a radical, also known as a free radical, is an atom, molecule, or ion that has at least one unpaired valence electron. With some exceptions, these unpaired electrons make radicals highly chemically reactive. Many radicals spon ...

Other uses in science and technology

* Saw set, the process of setting the teeth of a saw so each tooth protrudes to the side of the blade *

Scalar expectancy The scalar timing or scalar expectancy theory (SET) is a model of the processes that govern behavior controlled by time. The model posits an internal clock, and particular memory and decision processes. SET is one of the most important models of ani ...

theory, a model of the processes that govern behavior controlled by time * Science, Engineering & Technology, e.g.

The Science, Engineering & Technology Student of the Year Awards The Science, Engineering & Technology Student of the Year Awards (SET Awards) were presented to outstanding undergraduate students in the United Kingdom yearly between 1998 and 2013. The award was open to students who were on a first-degree course ...

Setting (typesetting) Typesetting is the composition of text by means of arranging physical ''type'' (or ''sort'') in mechanical systems or '' glyphs'' in digital systems representing '' characters'' (letters and other symbols).Dictionary.com Unabridged. Random ...

, the act of typesetting a publication for print or display *

Simulated Emergency Test The annual Simulated Emergency Test (SET) is a training exercise involving the Amateur Radio Emergency Service (ARES) and the National Traffic System (NTS), a message-handling service of amateur radio. The American Radio Relay League is a prime mo ...

, an amateur radio training exercise * Software Engineer in Test, a Quality Assurance job title in some software companies * Strategic Energy Technologies Plan of the European Union *

Suzuki SET A four-stroke power valve is a device fitted to four-stroke engines that constantly adjusts the internal diameter of the exhaust system to better suit the speed of the engine. Yamaha was the first to develop such a system, called the Exhaust Ulti ...

, Suzuki Exhaust Tuning of motorcycles

Arts and entertainment

Dance

*Set, the basic square formation in

square dancing A square dance is a dance for four couples, or eight dancers in total, arranged in a square, with one couple on each side, facing the middle of the square. Square dances contain elements from numerous traditional dances and were first documente ...

*Set, the basic longwise, square or triangular formation in

Scottish Country dancing Scottish country dance (SCD) is the distinctively Scottish form of country dance, itself a form of social dance involving groups of couples of dancers tracing progressive patterns. A dance consists of a sequence of figures. These dances are ...

*Set, the basic formation of more than one couple in Scottish, English and Irish Céilidh

Film, television and theatre

Set (film and TV scenery) A set is artificially constructed scenery used in theatre, film and TV. In the latter two cases there are many reasons to build or use a set instead of travelling to a real location, such as budget, time, the need to control the environment, or ...

Theatrical scenery Theatrical scenery is that which is used as a setting for a theatrical production. Scenery may be just about anything, from a single chair to an elaborately re-created street, no matter how large or how small, whether the item was custom-made or ...

Set construction Set construction is the process undertaken by a construction manager to build full-scale scenery, as specified by a production designer or art director working in collaboration with the director of a production to create a set for a theatric ...

, construction of scenery for theatrical, movie, television production, and video game production * ''The Set'' (film), a 1970 Australian movie * ''The Set'' (TV series), an Australian music television show * Sanlih Entertainment Television, a television channel in Taiwan *

Sony Entertainment Television Sony Entertainment Television (SET) is an Indian Hindi-language general entertainment pay television channel, that was launched on 30 September 1995, and is owned by Culver Max Entertainment, a subsidiary of the Japanese Sony. SET India's ...

, a Hindi-language television channel

Music

*DJ set or

DJ mix A DJ mix or DJ mixset is a sequence of musical tracks typically mixed together to appear as one continuous track. DJ mixes are usually performed using a DJ mixer and multiple sounds sources, such as turntables, CD players, digital audio players ...

, a musical performance by a DJ *

Set theory (music) Musical set theory provides concepts for categorizing musical objects and describing their relationships. Howard Hanson first elaborated many of the concepts for analyzing tonal music. Other theorists, such as Allen Forte, further developed th ...

, dealing with concepts for categorizing musical objects and describing their relationships * Set (music), a collection of discrete entities, for example pitch sets, duration sets, and timbre sets * ''Set'' (Thompson Twins album) * ''Set'' (Alex Chilton album) *

Set list A set list, or setlist, is typically a handwritten or printed document created as an ordered list of songs, jokes, stories and other elements an artist intends to present during a specific performance. A setlist can be made of nearly any materi ...

, a list of songs to be played during musical performances

Other arts

* Set (video game), a group of items that adds specific bonuses

Businesses and organizations

* Societatea Pentru Exploatări Tehnice, a Romanian aeronautics company of the 1920s to 1940s *

South Eastern Trains South Eastern Trains (stylised as Southeastern) was a publicly owned train operating company that operated the South Eastern Passenger Rail Franchise between November 2003, when it took over from Connex South Eastern, and 1 April 2006, when S ...

, former train operator England * Stock Exchange of Thailand, the national stock exchange of Thailand * SET Index, an index for the Stock Exchange of Thailand * Study of Exceptional Talent, a program for gifted students * Sydney Electric Train Society, an electric train preservation society in Sydney, Australia

Religion

Set (deity) Set (; Egyptological: ''Sutekh - swtẖ ~ stẖ'' or Greek: Seth ) is a god of deserts, storms, disorder, violence, and foreigners in ancient Egyptian religion. In Ancient Greek, the god's name is given as ''Sēth'' (Σήθ). Set had a positi ...

or Seth, an ancient Egyptian deity *Set or Seth, a Biblical character, a son of Adam and Eve

Sport and games

* Set (darts), a sequence of games * Set (card game) *

Set (cards) A set or group in card games is a scoring combination consisting of three or more playing cards of the same rank;Parlett (2008) p. 489. in some games, such as Bieten, a set may also comprise just two cards (a 'pair'). Description Sets are one ...

, two or more cards of the same rank * Set (dominoes), the first play in dominoes *Set, a signal used in

American football American football (referred to simply as football in the United States and Canada), also known as gridiron, is a team sport played by two teams of eleven players on a rectangular field with goalposts at each end. The offense, the team wi ...

*The set, a

pitching position In baseball, there are two legal pitching positions: the windup, and the set. Colloquially, the set is often referred to as "the stretch", although this term actually only refers to one part of the pitching motion when pitching from the set. Defi ...

in baseball *Set, a unit of play in

tennis Tennis is a racket sport that is played either individually against a single opponent ( singles) or between two teams of two players each ( doubles). Each player uses a tennis racket that is strung with cord to strike a hollow rubber ball ...

*Set, a team's second contact with the ball in

volleyball Volleyball is a team sport in which two teams of six players are separated by a net. Each team tries to score points by grounding a ball on the other team's court under organized rules. It has been a part of the official program of the Sum ...

*Set, a group of repetitions in

weight training Weight training is a common type of strength training for developing the strength, size of skeletal muscles and maintenance of strength.Keogh, Justin W, and Paul W Winwood. “Report for: The Epidemiology of Injuries Across the Weight-Trai ...

Three of a kind (poker) In poker, players form sets of five playing cards, called ''hands'', according to the rules of the game. Each hand has a rank, which is compared against the ranks of other hands participating in the showdown to decide who wins the pot. In high ...

, a type of poker hand

Other uses

Set and setting Set and setting, when referring to a psychedelic drug experience or the use of other psychoactive substances, means one's mindset (shortened to "set") and the physical and social environment (the "setting") in which the user has the experience. ...

, coined by Timothy Leary to describe the mindset and location of hallucinogenic experiences *

Seṭ and aniṭ roots Sanskrit has inherited from its parent, the Proto-Indo-European language, an elaborate system of verbal morphology, much of which has been preserved in Sanskrit as a whole, unlike in other kindred languages, such as Ancient Greek or Latin. Sanskri ...

, in Sanskrit grammar *

Set (river) The Set (''riu de Set'' in Catalan) is a river in Catalonia (northeastern Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(En ...

, a river in northeastern Spain *

Selective Employment Tax Selective Employment Tax (SET) was a weekly payroll tax in the United Kingdom. It was levied against employers at a flat rate of per man, and per woman. SET was intended to subsidise manufacturing industry from the proceeds of the services ind ...

, a tax in the United Kingdom from 1966 to 1973 *

Senate Electoral Tribunal The Senate Electoral Tribunal (SET) is an electoral tribunal that decides election protests in the Senate of the Philippines. It consists of 6 senators nominated by the Senate, and 3 justices of the Supreme Court of the Philippines, who are desig ...

, decides election protests for the Senate of the Philippines *Set, slang term for a subgroup within a

gang A gang is a group or society of associates, friends or members of a family with a defined leadership and internal organization that identifies with or claims control over territory in a community and engages, either individually or collective ...