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R (disambiguation)

Index R (disambiguation)

R is the eighteenth letter of the Latin alphabet. [1]

56 relations: Arginine, ATC code R, Coefficient of relationship, Dental, alveolar and postalveolar trills, Fracture mechanics, Gas constant, Haplogroup R (mtDNA), Haplogroup R (Y-DNA), Hook flash, IBM System R, Model R, Motion Picture Association of America film rating system, Pearson correlation coefficient, QuakeNet, R, R (cable operator), R (complexity), R (cross section ratio), R (film), R (New York City Subway service), R (programming language), R class, R-Type, R-value (insulation), R-value (soils), R. (album), R/K selection theory, Rankine scale, Rated R (Queens of the Stone Age album), , Réaumur scale, Rømer scale, Real number, Reconnaissance aircraft, Registered trademark symbol, Relative direction, Republican Party (United States), Restricted airspace, Roentgen (unit), RR, RRR, RRRR, RTV (Indonesia), Rydberg constant, Ryder, Side chain, South African rand, Spectral resolution, Stellar classification, Television in Indonesia, ..., Tempo, The Crown, The three Rs, The World Is Not Enough, Type R (disambiguation), Volkswagen Golf. Expand index (6 more) »


Arginine (symbol Arg or R) is an α-amino acid that is used in the biosynthesis of proteins.

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ATC code R


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Coefficient of relationship

The coefficient of relationship is a measure of the degree of consanguinity (or biological relationship) between two individuals.

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Dental, alveolar and postalveolar trills

The alveolar trill is a type of consonantal sound, used in many spoken languages.

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Fracture mechanics

Fracture mechanics is the field of mechanics concerned with the study of the propagation of cracks in materials.

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Gas constant

The gas constant is also known as the molar, universal, or ideal gas constant, denoted by the symbol or and is equivalent to the Boltzmann constant, but expressed in units of energy per temperature increment per mole, i.e. the pressure-volume product, rather than energy per temperature increment per particle.

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Haplogroup R (mtDNA)

Haplogroup R is a widely distributed human mitochondrial DNA (mtDNA) haplogroup.

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Haplogroup R (Y-DNA)

Haplogroup R or R-M207, is a Y-chromosome DNA haplogroup.

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Hook flash

Hook flash or flash (known in the UK as "recall") is a button on a telephone that simulates quickly hanging up then picking up again (a quick off-hook/on-hook/off-hook cycle).

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IBM System R

IBM System R is a database system built as a research project at IBM's San Jose Research Laboratory beginning in 1974.

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Model R

Model R may refer to.

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Motion Picture Association of America film rating system

The Motion Picture Association of America (MPAA) film rating system is used in the United States and its territories to rate a film's suitability for certain audiences based on its content.

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Pearson correlation coefficient

In statistics, the Pearson correlation coefficient (PCC, pronounced), also referred to as Pearson's r, the Pearson product-moment correlation coefficient (PPMCC) or the bivariate correlation, is a measure of the linear correlation between two variables X and Y. It has a value between +1 and −1, where 1 is total positive linear correlation, 0 is no linear correlation, and −1 is total negative linear correlation.

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QuakeNet is one of the largest Internet Relay Chat (IRC) networks, with a peak average of about 72,000 users and 42,000 channels.

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R (named ar/or) is the 18th letter of the modern English alphabet and the ISO basic Latin alphabet.

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R (cable operator)

R Cable y Telecomunicaciones Galicia, S.A. is a Spanish telecommunications company that offers fixed and mobile telephone, television and Broadband Internet services to businesses and consumers in Galicia, Spain.

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R (complexity)

In computational complexity theory, R is the class of decision problems solvable by a Turing machine, which is the set of all recursive languages.

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R (cross section ratio)

R is the ratio of the hadronic cross section to the muon cross section in electron–positron collisions: where the superscript (0) indicates that the cross section has been corrected for initial state radiation.

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R (film)

R (R) is a 2010 Danish prison drama film written and directed by Tobias Lindholm and Michael Noer, and starring Pilou Asbæk.

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R (New York City Subway service)

The R Broadway Local is a rapid transit service in the B Division of the New York City Subway.

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R (programming language)

R is a programming language and free software environment for statistical computing and graphics that is supported by the R Foundation for Statistical Computing.

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R class

R class or Class R may refer to.

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is a side scrolling shoot-em-up arcade game produced by Irem in 1987.

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R-value (insulation)

In building and construction, the R-value is a measure of how well an object, per unit of its exposed area, resists conductive flow of heat: the greater the R-value, the greater the resistance, and so the better the thermal insulating properties of the object.

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R-value (soils)

The R-Value test measures the response of a compacted sample of soil or aggregate to a vertically applied pressure under specific conditions.

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R. (album)

R. is the third solo album by American recording artist R. Kelly, released as a double album on November 10, 1998 by Jive Records.

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R/K selection theory

In ecology, r/K selection theory relates to the selection of combinations of traits in an organism that trade off between quantity and quality of offspring.

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Rankine scale

The Rankine scale is an absolute scale of thermodynamic temperature named after the Glasgow University engineer and physicist William John Macquorn Rankine, who proposed it in 1859.

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Rated R (Queens of the Stone Age album)

Rated R (also known as R or, on vinyl, Rated X) is the second studio album by American rock band Queens of the Stone Age.

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R° (アール) is the debut album of Japanese singer-songwriter Rurutia.

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Réaumur scale

The Réaumur scale (°Ré, °Re, °r), also known as the "octogesimal division", is a temperature scale for which the freezing and boiling points of water are defined as 0 and 80 degrees respectively.

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Rømer scale

The Rømer scale (also Roemer) is a temperature scale named after the Danish astronomer Ole Christensen Rømer, who proposed it in 1701.

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Real number

In mathematics, a real number is a value of a continuous quantity that can represent a distance along a line.

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Reconnaissance aircraft

A reconnaissance aircraft is a military aircraft designed or adapted to perform aerial reconnaissance.

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Registered trademark symbol

The registered trademark symbol (®) is a symbol that provides notice that the preceding word or symbol is a trademark or service mark that has been registered with a national trademark office.

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Relative direction

The most common relative directions are left, right, forward(s), backward(s), up, and down.

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Republican Party (United States)

The Republican Party, also referred to as the GOP (abbreviation for Grand Old Party), is one of the two major political parties in the United States, the other being its historic rival, the Democratic Party.

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Restricted airspace

Restricted airspace is an area (volume) of airspace typically used by the military in which the local controlling authorities have determined that air traffic must be restricted (if not continually prohibited) for safety or security concerns.

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Roentgen (unit)

The roentgen or röntgen (symbol R) is a legacy unit of measurement for the exposure of X-rays and gamma rays.

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RR or rr may refer to.

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RRR may refer to.

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RRRR may refer to.

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RTV (Indonesia)

Rajawali Televisi (abbreviated to RTV, previously named B-Channel) is a national private television station in Indonesia owned by Rajawali Corporation.

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Rydberg constant

The Rydberg constant, symbol R∞ for heavy atoms or RH for hydrogen, named after the Swedish physicist Johannes Rydberg, is a physical constant relating to atomic spectra, in the science of spectroscopy.

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Ryder System, Inc., or Ryder, is an American provider of transportation and supply chain management products, and is especially known for its fleet of rental trucks.

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Side chain

In organic chemistry and biochemistry, a side chain is a chemical group that is attached to a core part of the molecule called "main chain" or backbone.

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South African rand

The South African Rand (sign: R; code: ZAR) is the currency of South Africa.

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Spectral resolution

The spectral resolution of a spectrograph, or, more generally, of a frequency spectrum, is a measure of its ability to resolve features in the electromagnetic spectrum.

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Stellar classification

In astronomy, stellar classification is the classification of stars based on their spectral characteristics.

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Television in Indonesia

State-run station TVRI held a television monopoly in Indonesia until 1989, when the first commercial station, RCTI (Rajawali Citra Televisi Indonesia) began as a local station and was subsequently granted a national license a year later.

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In musical terminology, tempo ("time" in Italian; plural: tempi) is the speed or pace of a given piece.

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The Crown

The Crown is the state in all its aspects within the jurisprudence of the Commonwealth realms and their sub-divisions (such as Crown dependencies, provinces, or states).

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The three Rs

The three Rs (as in the letter R) refers to the foundations of a basic skills-oriented education program in schools: '''''r'''''eading, w'''''r'''''iting and a'''''r'''''ithmetic.

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The World Is Not Enough

The World Is Not Enough is a 1999 British spy film, the nineteenth in the ''James Bond'' series produced by Eon Productions, and the third to star Pierce Brosnan as the fictional MI6 agent James Bond.

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Type R (disambiguation)

The Type R is a marque of special performance Honda cars.

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Volkswagen Golf

The Volkswagen Golf is a compact car produced by the German manufacturer Volkswagen since 1974, marketed worldwide across seven generations, in various body configurations and under various nameplates – such as the Volkswagen Rabbit in the United States and Canada (Mk1 and Mk5), and as the Volkswagen Caribe in Mexico (Mk1).

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Redirects here:

R (album).


[1] https://en.wikipedia.org/wiki/R_(disambiguation)

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