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Ef. 20848
EF or ef may refer to: Arts and entertainment * Ef (band), a post-rock band from Sweden * ''Ef: A Fairy Tale of the Two.'', a Japanese adult visual novel series by Minori, or its anime adaptations Businesses and organizations * Eagle Forum, an anti-feminist conservative interest group * Earth First! movement, in environmentalism * Eastern Fare, a music institution and production house in Bangalore, India * EF Education First an international education organization * The Elias Fund, a non-profit organization * Far Eastern Air Transport (IATA code EF) Linguistics * Ef (Cyrillic) (Ф, ф), a letter in the Cyrillic alphabet * F, a Latin letter Science Biology and psychology * Ejection fraction, in cardiovascular physiology * Elongation factors, proteins that are important in protein synthesis * Executive functions, a theorized cognitive system in psychology that controls and manages other cognitive processes Physics * Electric field, in physics * Exafarad, an SI unit of electric ...
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Ef (band)
Ef (stylized as EF) is a post-rock band from Gothenburg, Sweden. Using little vocals, they feature a wide variety of instruments. Their debut album ''Give me beauty... Or give me death!'' was released in May 2006. They had several tours with shows in various European countries. In February 2008 the band released their second album ''I Am Responsible'', with a tour through The Netherlands and Germany, starting March. On March 21 2008, it was announced on their website that bass player Mikael Hillergård had left the band. Discography *''Give Me Beauty... Or Give Me Death!'' (2006) *''I Am Responsible'' (2008) *''Mourning Golden Morning'' (2010) *''Delusions of Grandeur'' (2012) *''Ceremonies'' (2013) *''V​ā​yu'' (2016, joint EP with Tiny Fingers) *''We salute you, you and you!'' (2022) See also *List of post-rock bands External links Official websiteBandcampMySpaceRecord Company WebsiteJapanese Record Company WebsiteInterview
Swedish post-rock groups {{Sweden-ban ...
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Exafarad
The farad (symbol: F) is the unit of electrical capacitance, the ability of a body to store an electrical charge, in the International System of Units (SI). It is named after the English physicist Michael Faraday (1791–1867). In SI base units 1 F = 1  kg−1⋅ m−2⋅ s4⋅ A2. Definition The capacitance of a capacitor is one farad when one coulomb of charge changes the potential between the plates by one volt. Equally, one farad can be described as the capacitance which stores a one-coulomb charge across a potential difference of one volt. The relationship between capacitance, charge, and potential difference is linear. For example, if the potential difference across a capacitor is halved, the quantity of charge stored by that capacitor will also be halved. For most applications, the farad is an impractically large unit of capacitance. Most electrical and electronic applications are covered by the following SI prefixes: *1 mF (millifarad, one thousandth () ...
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Era Fascista
The ''Era Fascista'' ("Fascist Era") was a calendar era (year numbering) used in Fascist Italy. The March on Rome, or more precisely the accession of Mussolini as prime minister on 29 October 1922, is day 1 of '' Anno I'' of the ''Era Fascista''. The calendar was introduced in 1926 and became official in ''Anno V'' (1927). Each year of the ''Era Fascista'' was an ''Anno Fascista'', abbreviated ''A.F.'' The ''Era Fascista'' calendar was inspired by the French Republican calendar. ''Era Fascista'' dates often consisted of the Gregorian date followed by the corresponding ''Era Fascista'' year in Roman numerals, as part of Fascist propaganda's appropriation of ancient Roman iconography. The ''Era Fascista'' year was sometimes written as "''Anno XIX''", "''A. XIX''", or marked "''E.F.''" The calendar was intended to replace the "bourgeois" Gregorian calendar in Italian public life to the extent that, in 1939, newspapers were forbidden to write about New Year's Day. The tenth ...
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Extraordinary Form
In the Catholic Church, the use of preconciliar rites after the Second Vatican Council has resulted in certain Latin liturgical rites coexisting with older ("preconciliar": "before the Second Vatican Council") versions of those same rites. In the postconciliar years, i.e. years following the Second Vatican Council, Pope Paul VI initiated a significant change of the Roman Rite (the predominant rite of the Latin Church), which precipitated certain other Latin rites being similarly reformed. Some of those among Paul VI's contemporaries who considered the changes to the Roman Rite Mass to be too drastic obtained from him limited permission for the continued use of the previous version of that rite's missal. In the years since, the Holy See has granted varying degrees of permission to celebrate the Roman Rite and other Latin rites in the same manner as was done prior to the council. The use of preconciliar rites is associated with the movement known as traditionalist Catholicism. In t ...
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Canon EF Lens Mount
The EF lens mount is the standard lens mount on the Canon EOS family of SLR film and digital cameras. EF stands for "Electro-Focus": automatic focusing on EF lenses is handled by a dedicated electric motor built into the lens. Mechanically, it is a bayonet-style mount, and all communication between camera and lens takes place through electrical contacts; there are no mechanical levers or plungers. The mount was first introduced in 1987. Canon claims to have produced its 100-millionth EF-series interchangeable lens on 22 April 2014. History The EF mount replaces its predecessor, the FD mount. The standard autofocus lens mounting technology of the time used a motor in the camera body to drive the mechanics of the focus helicoid in the lens by using a transfer lever. The key innovation of the EF series was to use a motor inside the lens itself for focusing. This allowed for autofocusing lenses which did not require mechanical levers in the mount mechanism, only electrical con ...
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Canon EF Camera
The Canon EF is a manual focus 35mm 35 mm may refer to: * 135 film, a type of still photography format commonly referred to as 35 mm film * 35 mm movie film, a type of motion picture film stock * 35MM 35 mm may refer to: * 135 film, a type of still photography format ... single-lens reflex camera produced by Canon Inc., Canon between 1973 and 1978. It was compatible with Canon's Canon FD, FD-mount lenses. The EF was built as an electro-mechanical version of Canon's top-of-the line wholly mechanical Canon F-1. The shutter is mechanical at all speeds starting at 1/2 second and faster, but from 1 second and beyond the shutter is all electric, allowing for AE shutter speeds as long as 30 seconds. The EF shares the F-1's rugged construction and tough metal body. Unlike the F-1, the EF does not support any motor drive for film transport. Neither does it provide any interchangeable viewfinder. The Canon EF contained a silicon photocell light meter with a range of Exposu ...
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Ice Cap Climate
An ice cap climate is a polar climate where no mean monthly temperature exceeds . The climate covers areas in or near the high latitudes (65° latitude) to polar regions (70–90° north and south latitude), such as Antarctica, some of the northernmost islands of Canada and Russia, Greenland, along with some regions and islands of Norway's Svalbard Archipelago that have vast deserts of snow and ice. Areas with ice cap climates are normally covered by a permanent layer of ice and have no vegetation. There is limited animal life in most ice cap climates, usually found near the oceanic margins. Although ice cap climates are inhospitable to human life, there are some small research stations scattered in Antarctica and interior Greenland. Description Under the Köppen climate classification, the ice cap climate is denoted as ''EF''. Ice caps are defined as a climate with no months above . Such areas are found around the north and south pole, and on the top of many high mountains. S ...
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Enhanced Fujita Scale
The Enhanced Fujita scale (abbreviated as EF-Scale) rates tornado intensity based on the severity of the damage they cause. It is used in some countries, including the United States, Canada, China, and Mongolia. The Enhanced Fujita scale replaced the decommissioned Fujita scale that was introduced in 1971 by Ted Fujita. Operational use began in the United States on February 1, 2007, followed by Canada on April 1, 2013. It has also been proposed for use in France. The scale has the same basic design as the original Fujita scale—six intensity categories from zero to five, representing increasing degrees of damage. It was revised to reflect better examinations of tornado damage surveys, in order to align wind speeds more closely with associated storm damage. Better standardizing and elucidating what was previously subjective and ambiguous, it also adds more types of structures and vegetation, expands degrees of damage, and better accounts for variables such as differences in con ...
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Ecological Footprint
The ecological footprint is a method promoted by the Global Footprint Network to measure human demand on natural capital, i.e. the quantity of nature it takes to support people or an economy. It tracks this demand through an ecological accounting system. The accounts contrast the biologically productive area people use for their consumption to the biologically productive area available within a region or the world (biocapacity, the productive area that can regenerate what people demand from nature). In short, it is a measure of human impact on the environment. Footprint and biocapacity can be compared at the individual, regional, national or global scale. Both footprint and biocapacity change every year with number of people, per person consumption, efficiency of production, and productivity of ecosystems. At a global scale, footprint assessments show how big humanity's demand is compared to what Earth can renew. Global Footprint Network estimates that, as of 2014, humanity has ...
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Fermi Level
The Fermi level of a solid-state body is the thermodynamic work required to add one electron to the body. It is a thermodynamic quantity usually denoted by ''µ'' or ''E''F for brevity. The Fermi level does not include the work required to remove the electron from wherever it came from. A precise understanding of the Fermi level—how it relates to electronic band structure in determining electronic properties, how it relates to the voltage and flow of charge in an electronic circuit—is essential to an understanding of solid-state physics. In band structure theory, used in solid state physics to analyze the energy levels in a solid, the Fermi level can be considered to be a hypothetical energy level of an electron, such that at thermodynamic equilibrium this energy level would have a ''50% probability of being occupied at any given time''. The position of the Fermi level in relation to the band energy levels is a crucial factor in determining electrical properties. The Fermi le ...
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Fermi Energy
The Fermi energy is a concept in quantum mechanics usually referring to the energy difference between the highest and lowest occupied single-particle states in a quantum system of non-interacting fermions at absolute zero temperature. In a Fermi gas, the lowest occupied state is taken to have zero kinetic energy, whereas in a metal, the lowest occupied state is typically taken to mean the bottom of the conduction band. The term "Fermi energy" is often used to refer to a different yet closely related concept, the Fermi ''level'' (also called electrochemical potential).The use of the term "Fermi energy" as synonymous with Fermi level (a.k.a. electrochemical potential) is widespread in semiconductor physics. For example:''Electronics (fundamentals And Applications)''by D. Chattopadhyay''Semiconductor Physics and Applications''by Balkanski and Wallis. There are a few key differences between the Fermi level and Fermi energy, at least as they are used in this article: * The Fermi energy ...
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Electric Field
An electric field (sometimes E-field) is the physical field that surrounds electrically charged particles and exerts force on all other charged particles in the field, either attracting or repelling them. It also refers to the physical field for a system of charged particles. Electric fields originate from electric charges and time-varying electric currents. Electric fields and magnetic fields are both manifestations of the electromagnetic field, one of the four fundamental interactions (also called forces) of nature. Electric fields are important in many areas of physics, and are exploited in electrical technology. In atomic physics and chemistry, for instance, the electric field is the attractive force holding the atomic nucleus and electrons together in atoms. It is also the force responsible for chemical bonding between atoms that result in molecules. The electric field is defined as a vector field that associates to each point in space the electrostatic ( Coulomb) for ...
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