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EM, Em or em may refer to:


Arts and entertainment


Music

* Em, the
E minor E minor is a minor scale based on E, consisting of the pitches E, F, G, A, B, C, and D. Its key signature has one sharp, on the F. Its relative major is G major and its parallel major is E major. The E natural minor scale is: Change ...
musical scale * Em, the E
minor chord In music theory, a minor chord is a chord that has a root, a minor third, and a perfect fifth. When a chord comprises only these three notes, it is called a minor triad. For example, the minor triad built on A, called an A minor triad, has pit ...
*
Electronic music Electronic music broadly is a group of music genres that employ electronic musical instruments, circuitry-based music technology and software, or general-purpose electronics (such as personal computers) in its creation. It includes both music ...
, music that employs electronic musical instruments and electronic music technology in its production *
Encyclopedia Metallum An encyclopedia is a reference work or compendium providing summaries of knowledge, either general or special, in a particular field or discipline. Encyclopedias are divided into articles or entries that are arranged alphabetically by artic ...
, an online metal music database *
Eminem Marshall Bruce Mathers III (born October 17, 1972), known professionally as Eminem, is an American rapper, songwriter, and record producer. Regarded as one of the greatest and most influential rappers of all time, he is credited with popula ...
, American rapper


Other uses in arts and entertainment

* ''Em'' (comic strip), a comic strip by Maria Smedstad


Companies and organizations

* Em (restaurant), a restaurant in Mexico City *
Aero Benin Aero Benin was an airline, based in Benin but registered in Germany, which carried out land and sea freight as well as passenger services. As of 8 April 2009 it is banned within the European Union and as of July, 2012, it is inactive. Fleet Aero ...
(IATA code), a defunct airline * Empire Airlines (IATA code), a charter and cargo airline based in Idaho, US *
Erasmus Mundus The European Union's Erasmus Mundus programme (named after Erasmus, the Renaissance scholar) aims to enhance quality in higher education through scholarship A scholarship is a form of Student financial aid, financial aid awarded to students f ...
, an international student-exchange program * '' Estado de Minas'', a Brazilian newspaper *
European Movement The European Movement International is a lobbying association that coordinates the efforts of associations and national councils with the goal of promoting European integration, and disseminating information about it. History Initially the Euro ...
, an international lobbying association *
ExxonMobil Exxon Mobil Corporation ( ) is an American multinational List of oil exploration and production companies, oil and gas corporation headquartered in Spring, Texas, a suburb of Houston. Founded as the Successors of Standard Oil, largest direct s ...
, a large oil company formed from the merger of Exxon and Mobil in 1999 *
La République En Marche! Renaissance (RE) is a political party in France that is typically described as liberal and centrist or centre-right. The party was originally known as (EM) and later (, LREM, LaREM or REM), before adopting its current name in September 2022 ...
(sometimes shortened to "En Marche!"), a major French political party


Economics

*
Emerging markets An emerging market (or an emerging country or an emerging economy) is a market that has some characteristics of a developed market, but does not fully meet its standards. This includes markets that may become developed markets in the future or we ...
, nations undergoing rapid industrialization


Language and typography


Language

* M, a letter of the modern Latin alphabet, in English and other languages *
Em (Cyrillic) Em (М м; italics: ) is a letter of the Cyrillic script The Cyrillic script ( ) is a writing system used for various languages across Eurasia. It is the designated national script in various Slavic languages, Slavic, Turkic languages, Turk ...
(М / м), a letter of the Cyrillic alphabet * Em (digraph), a digraph in Portuguese * Em, the third-person singular oblique
Spivak pronoun The Spivak pronouns 'e/em/eir' are a set of gender-neutral pronouns in English promoted on the virtual community ''LambdaMOO'' based on pronouns used in a book by American mathematician Michael Spivak. Though not in widespread use, they have ...


Typography

*
em (typography) An em (from ''Quad (typography), em quadrat'') is a Typographic unit, unit in the field of typography, equal to the currently specified Point (typography), point size. It corresponds to the Body height (typography), body height of the typeface. F ...
, a unit of measurement *
em dash The dash is a punctuation mark consisting of a long horizontal line. It is similar in appearance to the hyphen but is longer and sometimes higher from the baseline. The most common versions are the endash , generally longer than the hyphen ...
, a dash that is one em wide *
em space An em (from '' em quadrat'') is a unit in the field of typography, equal to the currently specified point size. It corresponds to the body height of the typeface. For example, one em in a 16-point typeface is 16 points. Therefore, this unit is ...
or mutton, a space that is one em wide


Management

*
Emergency management Emergency management (also Disaster management) is a science and a system charged with creating the framework within which communities reduce vulnerability to hazards and cope with disasters. Emergency management, despite its name, does not actu ...
, a discipline that studies dealing with and avoiding risks *
Energy management Energy management includes planning and operation of energy production and energy consumption units as well as energy distribution and storage. Energy management is performed via Energy Management Systems (EMS), which are designed with hardware ...
, planning and operation of energy production and energy consumption units *
Environmental management Environmental resource management or environmental management is the management of the interaction and impact of human societies on the environment. It is not, as the phrase might suggest, the management of the environment itself. Environment ...
, the management of the interaction of human societies with the environment


Places

*
El Monte, California El Monte is a city in Los Angeles County, California, United States. The city lies in the San Gabriel Valley, east of the city of Los Angeles. El Monte's slogan is "Welcome to Friendly El Monte" and is historically known as "The End of the San ...
, a city in the United States *
El Monte, Chile El Monte is a Chilean city and commune in Talagante Province, Santiago Metropolitan Region. As of 2007, it had a population of 29,568. Geography El Monte can be found on the north bank of the Mapocho River in the Chilean Central Valley appro ...
, a city in Chile


Science


Biology

*
Effective microorganism Effective microorganisms (EM) are various blends of common predominantly anaerobic microorganisms in a carbohydrate-rich liquid carrier substrate (molasses nutrient solution) of ''EM Research Organization, Inc.'Effective Microorganisms'' ''EM'' ...
s, a series of products intended to improve soil quality and plant growth *
Extracellular matrix In biology, the extracellular matrix (ECM), also called intercellular matrix (ICM), is a network consisting of extracellular macromolecules and minerals, such as collagen, enzymes, glycoproteins and hydroxyapatite that provide structural and bio ...
, the connective tissue supporting cells in multicellular organisms *
Membrane potential Membrane potential (also transmembrane potential or membrane voltage) is the difference in electric potential between the interior and the exterior of a biological cell. It equals the interior potential minus the exterior potential. This is th ...
(''E''m), of a cell


Computing

* , emphasis
HTML element An HTML element is a type of HTML (HyperText Markup Language) document component, one of several types of HTML nodes (there are also text nodes, comment nodes and others). The first used version of HTML was written by Tim Berners-Lee in 199 ...
*
End of medium The C0 and C1 control code or control character sets define control codes for use in text by computer systems that use ASCII and derivatives of ASCII. The codes represent additional information about the text, such as the position of a cursor, a ...
, ISO C0 control code ^Y *
Empirical modelling Empirical modelling refers to any kind of (computer) modelling based on empirical observations rather than on mathematically describable relationships of the system modelled. Empirical Modelling Empirical Modelling as a variety of empirical mo ...
*
em (typography) An em (from ''Quad (typography), em quadrat'') is a Typographic unit, unit in the field of typography, equal to the currently specified Point (typography), point size. It corresponds to the Body height (typography), body height of the typeface. F ...
, a unit of measurement in Web design * eM Client E-Mail client * A whole brain emulation, see also brain emulation, a hypothetical future life extension technology. ''Ems'' were coined by
Robin Hanson Robin Dale Hanson (born August 28, 1959) is an American economist and author. He is associate professor of economics at George Mason University and a former research associate at the Future of Humanity Institute of Oxford University. Hanson is k ...
.


Medicine

*
Emergency medicine Emergency medicine is the medical specialty concerned with the care of illnesses or injuries requiring immediate medical attention. Emergency physicians (or "ER doctors") specialize in providing care for unscheduled and undifferentiated pa ...
, a medical specialty dealing with acute illnesses and injuries that require immediate attention *
Erythema multiforme Erythema multiforme (EM) is an immune-mediated inflammatory skin condition associated with several viral infections, that appears with red patches evolving into target lesions, typically on both hands. It is typically associated with infection ...
, a skin condition that usually follows an antecedent infection or drug exposure *
Erythromelalgia Erythromelalgia, or Mitchell's disease (after Silas Weir Mitchell (physician), Silas Weir Mitchell), is a rare vascular peripheral pain disorder in which blood vessels, usually in the Human leg, lower extremities or hands, are episodically blocke ...
, a disorder that typically affects the skin of the feet and/or hands, causing redness, heat and pain * Extensive metabolizer, a term used in pharmacogenomics to refer to individuals with normal metabolic activity


Physics

* Exametre or exameter (Em), an SI unit of length equal to 1018 metres *
Electromagnetic spectrum The electromagnetic spectrum is the full range of electromagnetic radiation, organized by frequency or wavelength. The spectrum is divided into separate bands, with different names for the electromagnetic waves within each band. From low to high ...
, the range of all possible frequencies of electromagnetic radiation *
Electromigration Electromigration is the transport of material caused by the gradual movement of the ions in a Conductor (material), conductor due to the momentum transfer between conducting electrons and diffusing metal atoms. The effect is important in applicat ...
, the transport of conducting solid material caused by electric current through it *
Electromagnetism In physics, electromagnetism is an interaction that occurs between particles with electric charge via electromagnetic fields. The electromagnetic force is one of the four fundamental forces of nature. It is the dominant force in the interacti ...
, one of the fundamental physical forces *
Electromechanics Electromechanics combine processes and procedures drawn from electrical engineering and mechanical engineering. Electromechanics focus on the interaction of electrical and mechanical systems as a whole and how the two systems interact with each ...
, combines electrical engineering and mechanical engineering


Other uses in science and technology

* Nikon EM, an SLR camera made by the Nikon Corporation in the late 1970s *
Electron microscope An electron microscope is a microscope that uses a beam of electrons as a source of illumination. It uses electron optics that are analogous to the glass lenses of an optical light microscope to control the electron beam, for instance focusing it ...
, a type of microscope that uses electrons to "illuminate" a specimen and create an enlarged image *
Electron multiplier An electron multiplier is a vacuum-tube structure that multiplies incident charges. In a process called secondary emission, a single electron can, when bombarded on secondary-emissive material, induce emission of roughly 1 to 3 electrons. If an ele ...
, a vacuum-tube structure that multiplies incident charges by means of secondary emission * Electronic monitoring, a form of surveillance used in criminal justice * Atlantic Equatorial mode, a climate pattern of the Atlantic Ocean *
Expectation–maximization algorithm In statistics, an expectation–maximization (EM) algorithm is an iterative method to find (local) maximum likelihood or maximum a posteriori (MAP) estimates of parameters in statistical models, where the model depends on unobserved latent varia ...
, an algorithm for finding maximum likelihood estimates of parameters in probabilistic models


People

* Em Beihold (born 1999), American singer-songwriter * Em Bryant (born 1938), American professional basketball player * Em Cooper, British filmmaker and animator * Em Flach, Australian musician, producer, and photographer * Em Lindbeck (1934–2008), American professional baseball player * Em Rossi (born 1998), American singer-songwriter * Em Rusciano, Australian entertainer * Em Prasad Sharma (born 1975), Indian politician * Em Stone (born 1978), American comic book illustrator


Other uses

* Electrician's mate, an occupational rating in the U.S. Navy and U.S. Coast Guard *
David Em David Em (born 1952) is an American digital artist, known for his pioneering breakthroughs in computer art. He lives in Los Osos in San Luis Obispo County, California. Early life David Em was born in 1952 in Los Angeles, California. His fat ...
(born 1952), an American computer art pioneer * EM gauge, a scale used in model railways * ''
Etymologicum Magnum ''Etymologicum Magnum'' (, ) (standard abbreviation ''EM'', or ''Etym. M.'' in older literature) is the traditional title of a Greek lexical encyclopedia compiled at Constantinople by an unknown lexicographer around 1150 AD. It is the largest By ...
'', in the bibliography of the largest Byzantine lexicon {{disambiguation