source
stringlengths
1
149
text
stringlengths
18
204k
Frontal assault
A frontal assault is a military tactic which involves a direct, full-force attack on the front line of an enemy force, rather than to the flanks or rear of the enemy. It allows for a quick and decisive victory, but at the cost of subjecting the attackers to the maximum defensive power of the enemy; this can make fronta...
Theoretical oxygen demand
Theoretical oxygen demand (ThOD) is the calculated amount of oxygen required to oxidize a compound to its final oxidation products. However, there are some differences between standard methods that can influence the results obtained: for example, some calculations assume that nitrogen released from organic compounds is...
Actin related protein 2/3 complex inhibitor
Actin related protein 2/3 complex inhibitor is a protein that in humans is encoded by the ARPIN gene.
Graphic organizer
A graphic organizer, also known as a knowledge map, concept map, story map, cognitive organizer, advance organizer, or concept diagram is a pedagogical tool that uses visual symbols to express knowledge and concepts through relationships between them. The main purpose of a graphic organizer is to provide a visual aid t...
Thumb position
In music performance and education, thumb position, not a traditional position, is a string instrument playing technique used to facilitate playing in the upper register of the double bass, cello, and related instruments, such as the electric upright bass. To play passages in this register, the player shifts his or her...
Passive fire protection
Passive fire protection (PFP) is components or systems of a building or structure that slows or impedes the spread of the effects of fire or smoke without system activation, and usually without movement. Examples of passive systems include floor-ceilings and roofs, fire doors, windows, and wall assemblies, fire-resista...
Banner blindness
Banner blindness is a phenomenon in web usability where visitors to a website consciously or unconsciously ignore banner-like information. A broader term covering all forms of advertising is ad blindness, and the mass of banners that people ignore is called banner noise. The term banner blindness was coined in 1998 as ...
Hierarchical epistemology
Hierarchical epistemology is a theory of knowledge which posits that beings have different access to reality depending on their ontological rank.
Memorial square
A memorial square is an intersection dedicated in memory of someone, usually someone who was killed in a war. It is not the same as a town square. While the name of a town square is used to describe where something is located, the name of a memorial square is not used in the same manner.Memorial squares are also erecte...
Carnitine dehydratase
In enzymology, a carnitine dehydratase (EC 4.2.1.89) is an enzyme that catalyzes the chemical reaction L-carnitine ⇌ 4-(trimethylammonio)but-2-enoate + H2OHence, this enzyme has one substrate, L-carnitine, and two products, 4-(trimethylammonio)but-2-enoate and H2O. This enzyme belongs to the family of lyases, specific...
Extensor digitorum longus muscle
The extensor digitorum longus is a pennate muscle, situated at the lateral part of the front of the leg.
Thermal power station
A thermal power station is a type of power station in which heat energy is converted to electrical energy. In a steam-generating cycle heat is used to boil water in a large pressure vessel to produce high-pressure steam, which drives a steam turbine connected to an electrical generator. The low-pressure exhaust from th...
Baptism by fire
The phrase baptism by fire or baptism of fire is a Christian theological concept originating from the words of John the Baptist in Matthew 3:11.It also has related meanings in military history and popular culture.
Electrohydraulic servo valve
An electrohydraulic servo valve (EHSV) is an electrically-operated valve that controls how hydraulic fluid is sent to an actuator. Servo valves are often used to control powerful hydraulic cylinders with a very small electrical signal. Servo valves can provide precise control of position, velocity, pressure, and force ...
Acinic cell carcinoma
Acinic cell carcinoma is a malignant tumor representing 2% of all salivary tumors. 90% of the time found in the parotid gland, 10% intraorally on buccal mucosa or palate. The disease presents as a slow growing mass, associated with pain or tenderness in 50% of the cases. Often appears pseudoencapsulated.
Ekiga
Ekiga (formerly called GnomeMeeting) is a VoIP and video conferencing application for GNOME and Microsoft Windows. It is distributed as free software under the terms of the GNU GPL-2.0-or-later. It was the default VoIP client in Ubuntu until October 2009, when it was replaced by Empathy. Ekiga supports both the SIP and...
Marine geophysics
Marine geophysics is the scientific discipline that employs methods of geophysics to study the world's ocean basins and continental margins, particularly the solid earth beneath the ocean. It shares objectives with marine geology, which uses sedimentological, paleontological, and geochemical methods. Marine geophysical...
Polycystic lipomembranous osteodysplasia with sclerosing leukoencephalopathy
Nasu–Hakola disease also known as polycystic lipomembranous osteodysplasia with sclerosing leukoencephalopathy is a rare disease characterised by early-onset dementia and multifocal bone cysts. It is caused by autosomal recessive loss of function mutations in either the TREM2 or TYROBP gene that are found most frequent...
Test call generator
Test call generators (TCGs) are revenue assurance software that replicates events on a telecoms network to identify potential revenue leakage and to help achieve regulatory compliance.
Stall strips
A stall strip is a small component fixed to the leading edge of the wing of an airplane to modify its aerodynamic characteristics. These stall strips may be necessary for the airplane to comply with type certification requirements. A stall strip typically consists of a small piece of material, usually aluminium, triang...
Circulation (journal)
Circulation is a scientific journal published by Lippincott Williams & Wilkins for the American Heart Association. The journal publishes articles related to research in and the practice of cardiovascular diseases, including observational studies, clinical trials, epidemiology, health services and outcomes studies, and ...
Illth
Illth, coined by John Ruskin in the 1860s, is the reverse of wealth in the sense of ill being the opposite of well.
Stem (audio)
In audio production, a stem is a discrete or grouped collection of audio sources mixed together, usually by one person, to be dealt with downstream as one unit. A single stem may be delivered in mono, stereo, or in multiple tracks for surround sound.STeM is an acronym, for “Stereo Masters” The beginnings of the proces...
Crystallization adjutant
A crystallization adjutant is a material used to promote crystallization, normally in a context where a material does not crystallize naturally from a pure solution.
Desmoplastic small-round-cell tumor
Desmoplastic small-round-cell tumor (DSRCT) is an aggressive and rare cancer that primarily occurs as masses in the abdomen. Other areas affected may include the lymph nodes, the lining of the abdomen, diaphragm, spleen, liver, chest wall, skull, spinal cord, large intestine, small intestine, bladder, brain, lungs, tes...
17 Lyrae
17 Lyrae is a multiple star system in the constellation Lyra, 143 light years away from Earth.
Sub-bituminous coal
Sub-bituminous coal is a lower grade of coal that contains 35–45% carbon. The properties of this type are between those of lignite, the lowest grade of coal, and those of bituminous coal, the second-highest grade of coal. Sub-bituminous coal is primarily used as a fuel for steam-electric power generation.
Six-Word Memoirs
Six-Word Memoirs is a project and book series created by the U.S. based online storytelling magazine Smith Magazine.
EPC QR code
The European Payments Council Quick Response Code guidelines define the content of a QR code that can be used to initiate SEPA credit transfer (SCT). It contains all the necessary information in clear text. These QR code guidelines are used on many invoices and payment requests in the countries that support it (Austria...
Hexanitrostilbene
Hexanitrostilbene (HNS), also called JD-X, is an organic compound with the formula [(O2N)3C6H2CH]2. It is a yellow-orange solid. It is used as a heat-resistant high explosive. It is slightly soluble (0.1 - 5 g/100 mL) in butyrolactone, DMF, DMSO, and N-methylpyrrolidone.
Solvent bonding
Solvent bonding is one of several methods of adhesive bonding for joining plastics. Application of a solvent to a thermoplastic material softens the polymer, and with applied pressure this results in polymer chain interdiffusion at the bonding junction. When the solvent evaporates this leaves a fully consolidated bond-...
Natter Social Network
Natter was a social network, often referred to as a "microblogging" or even "micro-microblogging" platform. Natter allowed its users or “natterers” to post up to 100 characters and an image in each post, which could then be seen by any online users. Natter was first launched in 2014 as a website at natter.com, and late...
4-AcO-DPT
4-Acetyloxy-N,N-dipropyltryptamine (or 4-AcO-DPT) is a tryptamine derivative. 4-AcO-DPT has been sold as a designer drug. It is an ester of 4-HO-DPT, a psychedelic tryptamine first synthesized by Alexander Shulgin. Anecdotal reports indicate that 4-AcO-DPT exerts psychoactive effects in humans, however, the pharmacolog...
Journal of Clinical Interventional Radiology
The Journal of Clinical Interventional Radiology is a triannual open-access peer-reviewed medical journal covering all aspects of vascular and non-vascular interventional radiology. It is published by Thieme Medical Publishers on behalf of the Indian Society of Vascular and Interventional Radiology. It was established ...
Variation Selectors (Unicode block)
Variation Selectors is the block name of a Unicode code point block containing 16 variation selectors used to specify a glyph variant for a preceding character. They are currently used to specify standardized variation sequences for mathematical symbols, emoji symbols, 'Phags-pa letters, and CJK unified ideographs corr...
Graticule (cartography)
A graticule (from Latin crāticula 'grill/grating'), on a map, is a graphical depiction of a coordinate system as a grid of lines, each line representing a constant coordinate value. It is thus a form of isoline, and is commonly found on maps of many kinds at scales from the local to global.
Dynamic Markov compression
Dynamic Markov compression (DMC) is a lossless data compression algorithm developed by Gordon Cormack and Nigel Horspool. It uses predictive arithmetic coding similar to prediction by partial matching (PPM), except that the input is predicted one bit at a time (rather than one byte at a time). DMC has a good compressio...
Barium carbonate
Barium carbonate is the inorganic compound with the formula BaCO3. Like most alkaline earth metal carbonates, it is a white salt that is poorly soluble in water. It occurs as the mineral known as witherite. In a commercial sense, it is one of the most important barium compounds.
Nigro protocol
Nigro protocol is the preoperative use of chemotherapy with 5-fluorouracil and mitomycin and medical radiation for squamous cell carcinomas of the anal canal. Success of the preoperative regimen changed the paradigm of anal cancer treatment from surgical to non-surgical and was the advent of definitive chemoradiation (...
Infinitive
Infinitive (abbreviated INF) is a linguistics term for certain verb forms existing in many languages, most often used as non-finite verbs. As with many linguistic concepts, there is not a single definition applicable to all languages. The name is derived from Late Latin [modus] infinitivus, a derivative of infinitus me...
Vibration isolation
Vibration isolation is the process of isolating an object, such as a piece of equipment, from the source of vibrations.
Trichrome staining
Trichrome staining is a histological staining method that uses two or more acid dyes in conjunction with a polyacid. Staining differentiates tissues by tinting them in contrasting colours. It increases the contrast of microscopic features in cells and tissues, which makes them easier to see when viewed through a micros...
Nuitka
Nuitka (pronounced as ) is a source-to-source compiler which compiles Python code to C source code, applying some compile-time optimizations in the process such as constant folding and propagation, built-in call prediction, type inference, and conditional statement execution. Nuitka initially was designed to produce C+...
Samarium
Samarium is a chemical element with symbol Sm and atomic number 62. It is a moderately hard silvery metal that slowly oxidizes in air. Being a typical member of the lanthanide series, samarium usually has the oxidation state +3. Compounds of samarium(II) are also known, most notably the monoxide SmO, monochalcogenides ...
Gonadosomatic index
In biology, the gonadosomatic index (GSI) is the calculation of the gonad mass as a proportion of the total body mass. It is represented by the formula: GSI = [gonad weight / total tissue weight] × 100 It is a tool for measuring the sexual maturity of animals in correlation to ovary development and testes development. ...
Socket 2
Socket 2 was one of the series of CPU sockets into which various x86 microprocessors were inserted. It was an updated Socket 1 with added support for Pentium OverDrive processors. Socket 2 was a 238-pin low insertion force (LIF) or zero insertion force (ZIF) 19×19 pin grid array (PGA) socket suitable for the 5-volt, 25...
Tree view
A tree view is a graphical widget (graphical control element) within a graphical user interface (GUI) in which users can navigate and interact intuitively with concise, hierarchical data presented as nodes in a tree-like format. It can also be called an outline view.
Polycomb protein EED
Polycomb protein EED is a protein that in humans is encoded by the EED gene.
Prachetas
Pracetas (Sanskrit: प्रचेतस्) lit. '"the prescient one"' is a term in Hindu mythology with a number of definitions: It is an epithet of Varuna. It is a name of one of the ten Prajapatis, the son of Suvarna, a law giver. It is the name of the grandson of the sage Marichi and Kala, Varuna, the water god who is their gran...
Rhizomelic chondrodysplasia punctata
Rhizomelic chondrodysplasia punctata is a rare developmental brain disorder characterized by abnormally short arms and legs (rhizomelia), seizures, recurrent respiratory tract infections and congenital cataracts. The cause is a genetic mutation that results in low levels of plasmalogens, which are a type of lipid foun...
Culturally modified tree
Culturally modified tree (CMT) is a tree modified by indigenous people as part of their tradition. Such trees are important sources for the history of certain regions. The term is used in western Canada and the United States. In British Columbia, one of the most commonly modified trees, particularly on the coast, is t...
Video game remake
A video game remake is a video game closely adapted from an earlier title, usually for the purpose of modernizing a game with updated graphics for newer hardware and gameplay for contemporary audiences. Typically, a remake of such game software shares essentially the same title, fundamental gameplay concepts, and core ...
Vulpian–Heidenhain–Sherrington phenomenon
Vulpian–Heidenhain–Sherrington phenomenon is a term given for slow contraction of denervated skeletal muscle by stimulating the autonomic cholinergic fibers innervating its blood vessels. It is named after French neurologist Alfred Vulpian (1826–87), German physiologist Rudolf Heidenhain (1834–1897) and English neuroph...
Diurnal air temperature variation
In meteorology, diurnal temperature variation is the variation between a high air temperature and a low temperature that occurs during the same day.
Small nucleolar RNA Me28S-Am2634
In molecular biology, Small nucleolar RNA Me28S-Am2634 (also known as snoRNA Me28S-Am2634) is a non-coding RNA (ncRNA) molecule which functions in the biogenesis of other small nuclear RNAs (snRNAs). Small nucleolar RNAs (snoRNAs) are modifying RNAs and usually located in the nucleolus of the eukaryotic cell which is a...
Diffusion
Diffusion is the net movement of anything (for example, atoms, ions, molecules, energy) generally from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in Gibbs free energy or chemical potential. It is possible to diffuse "uphill" from a region of lower concentratio...
Bass–Serre theory
Bass–Serre theory is a part of the mathematical subject of group theory that deals with analyzing the algebraic structure of groups acting by automorphisms on simplicial trees. The theory relates group actions on trees with decomposing groups as iterated applications of the operations of free product with amalgamation ...
Mac Mini
Mac Mini (stylized as Mac mini) is a small form factor desktop computer developed and marketed by Apple Inc. As of 2022, it is positioned between the consumer all-in-one iMac and the professional Mac Studio and Mac Pro as one of four current Mac desktop computers. Since launch, it has shipped without a display, keyboar...
Tint, shade and tone
In color theory, a tint is a mixture of a color with white, which increases lightness, while a shade is a mixture with black, which increases darkness. Both processes affect the resulting color mixture's relative saturation. A tone is produced either by mixing a color with gray, or by both tinting and shading. Mixing a...
Triethyl phosphite
Triethyl phosphite is an organophosphorus compound with the formula P(OCH2CH3)3, often abbreviated P(OEt)3. It is a colorless, malodorous liquid. It is used as a ligand in organometallic chemistry and as a reagent in organic synthesis. The molecule features a pyramidal phosphorus(III) center bound to three ethoxide gro...
Femisphere
The femisphere is a solid that has one single surface, two edges, and four vertices.
TB11Cs5H1 snoRNA
TB11Cs5H1 is a member of the H/ACA-like class of non-coding RNA (ncRNA) molecule that guide the sites of modification of uridines to pseudouridines of substrate RNAs. It is known as a small nucleolar RNA (snoRNA) thus named because of its cellular localization in the nucleolus of the eukaryotic cell. TB11Cs5H1 is predi...
CuproBraze
CuproBraze is a copper-alloy heat exchanger technology for high-temperature and pressure environments such as those in the latest generations of diesel engines. The technology, developed by the International Copper Association (ICA), is licensed for free to heat exchanger manufacturers around the world.
Mileage Plan
Mileage Plan is the frequent-flyer program of Alaska Airlines. Members accrue program "miles" by flying Alaska Airlines and partner-operated flights, using co-branded credit cards, and booking vacation and hotel packages, among other methods. Mileage Plan miles can be redeemed for award flights on Alaska Airlines and p...
Movement marketing
Movement marketing, or cultural movement marketing, is a marketing model that begins with an idea on the rise in culture. StrawberryFrog, the world's first Cultural Movement agency, invented the movement marketing model in 1999 working for such brands as Smart Car and IKEA. “Movements” as a new brand building marketing...
Dimiracetam
Dimiracetam is a nootropic drug of the racetam family, derivatives of which may have application in the treatment of neuropathic pain.
Essentials of Programming Languages
Essentials of Programming Languages (EOPL) is a textbook on programming languages by Daniel P. Friedman, Mitchell Wand, and Christopher T. Haynes.
1,3-Propane sultone
1,3-Propane sultone is the organosulfur compound with the formula (CH2)3SO3. It is a cyclic sulfonate ester, a class of compounds called sultones. It is a readily melting colorless solid.
Pitchfork
A pitchfork or hay fork is an agricultural tool used to pitch loose material, such as hay, straw, manure, or leaves. It has a long handle and usually two to five thin tines designed to efficiently move such materials. The term is also applied colloquially, but inaccurately, to the garden fork. While similar in appearan...
Swaged sleeve
A swaged sleeve is a connector that gets crimped using a hand tool and die (swaged). This type of compressed sleeve is commonly used to make mechanical or conductive connections. These sleeves join or terminate wire rope, aircraft cable, synthetic cable, fibrous rope, or electrical conductor cables.
Pro-simplicial set
In mathematics, a pro-simplicial set is an inverse system of simplicial sets. A pro-simplicial set is called pro-finite if each term of the inverse system of simplicial sets has finite homotopy groups. Pro-simplicial sets show up in shape theory, in the study of localization and completion in homotopy theory, and in th...
OPLS
The OPLS (Optimized Potentials for Liquid Simulations) force field was developed by Prof. William L. Jorgensen at Purdue University and later at Yale University, and is being further developed commercially by Schrödinger, Inc.
Ishikawa diagram
Ishikawa diagrams (also called fishbone diagrams, herringbone diagrams, cause-and-effect diagrams) are causal diagrams created by Kaoru Ishikawa that show the potential causes of a specific event.Common uses of the Ishikawa diagram are product design and quality defect prevention to identify potential factors causing a...
Group 9 element
Group 9, by modern IUPAC numbering, is a group (column) of chemical elements in the periodic table. Members of Group 9 include cobalt (Co), rhodium (Rh), iridium (Ir) and meitnerium (Mt). These are all transition metals in the d-block, considered to be some of the most rare of which.Like other groups, the members of th...
Schema matching
The terms schema matching and mapping are often used interchangeably for a database process. For this article, we differentiate the two as follows: Schema matching is the process of identifying that two objects are semantically related (scope of this article) while mapping refers to the transformations between the obje...
Water ionizer
A water ionizer (also known as an alkaline ionizer) is a home appliance which claims to raise the pH of drinking water by using electrolysis to separate the incoming water stream into acidic and alkaline components. The alkaline stream of the treated water is called alkaline water. Proponents claim that consumption of ...
Zemax
Zemax is a company that sells optical design software. OpticStudio is its flagship product and a commonly used optical design program for Microsoft Windows. It is used for the design and analysis of both imaging and illumination systems.
Cold frame
In agriculture and gardening, a cold frame is a transparent-roofed enclosure, built low to the ground, used to protect plants from adverse weather, primarily excessive cold or wet. The transparent top admits sunlight and prevents heat escape via convection that would otherwise occur, particularly at night. Essentially,...
PlayStation Mouse
The PlayStation Mouse (US/UK: SCPH-1090, JP: SCPH-1030) is an input device for the PlayStation that allows the player to use a mouse as a method of control in compatible games. The mouse was released in Japan on December 3, 1994, the launch date of the PlayStation.The mouse itself is a simple two-button ball mouse that...
Blood brother
Blood brother can refer to two or more men not related by birth who have sworn loyalty to each other. This is in modern times usually done in a ceremony, known as a blood oath, where each person makes a small cut, usually on a finger, hand or the forearm, and then the two cuts are pressed together and bound, the idea b...
Li's criterion
In number theory, Li's criterion is a particular statement about the positivity of a certain sequence that is equivalent to the Riemann hypothesis. The criterion is named after Xian-Jin Li, who presented it in 1997. In 1999, Enrico Bombieri and Jeffrey C. Lagarias provided a generalization, showing that Li's positivity...
CTU2
CTU2 (formerly known as C16orf84) is a human gene located on chromosome 16. The mRNA encodes the longer isoform. The gene encodes a cytoplasmic protein that plays a probable role in tRNA modification.
Elementary sentence
In mathematical logic, an elementary sentence is one that is stated using only finitary first-order logic, without reference to set theory or using any axioms which have consistency strength equal to set theory. Saying that a sentence is elementary is a weaker condition than saying it is algebraic.
PrrB/RsmZ RNA family
The PrrB/RsmZ RNA family are a group of related non-coding RNA molecules found in bacteria. PrrB RNA is able to phenotypically complement gacS and gacA mutants and is itself regulated by the GacS-GacA two-component signal transduction system. Inactivation of the prrB gene in Pseudomonas fluorescens F113 resulted in a s...
Bombay mix
Bombay mix or Chanachur is an Indian snack mix (namkeen) which consists of a variable mixture of spicy dried ingredients, such as fried lentils, peanuts, chickpeas, chickpea flour ganthiya, corn, vegetable oil, puffed rice, fried onion and curry leaves. This is all flavored with salt and a blend of spices that may incl...
TableCurve 3D
TableCurve 3D is a linear and non-linear surface fitting software package for engineers and scientists that automates the surface fitting process and in a single processing step, fits and ranks about 36,000 out of over 450 million built-in frequently encountered equations, enabling users to find the ideal model to thei...
Standard L-function
In mathematics, the term standard L-function refers to a particular type of automorphic L-function described by Robert P. Langlands. Here, standard refers to the finite-dimensional representation r being the standard representation of the L-group as a matrix group.
Cork grease
Cork grease is a lubricant for woodwind and reed instruments such as saxophones, clarinets, bassoons, and oboes. These instruments are designed to be disassembled into parts for easy storage and portability, and the joints between parts feature cork seals. Cork grease is used on these seals to ease and lubricate instru...
International Journal of Surgical Pathology
International Journal of Surgical Pathology is a peer-reviewed academic journal that publishes papers in the field of Pathology. The journal's editor is Cyril Fisher, M.D. It has been in publication since 1993 and is currently published by SAGE Publications.
KDevelop
KDevelop is a free and open-source integrated development environment (IDE) for Unix-like computer operating systems and Windows. It provides editing, navigation and debugging features for several programming languages, and integration with build automation and version-control systems, using a plugin-based architecture...
Estill Voice Training
Estill Voice Training (often abbreviated EVT) is a program for developing vocal skills based on analysing the process of vocal production into control of specific structures in the vocal mechanism. By acquiring the ability to consciously move each structure the potential for controlled change of voice quality is increa...
Western Digital My Book
My Book is a series of external hard drives produced by Western Digital. There are currently nine series of My Book drives; Essential Edition, Home Edition, Office Edition, Mirror Edition, Studio Edition, Premium Edition, Elite Edition, Pro Edition, AV Dvr "Live Edition", and the World Edition.
Atwater system
The Atwater system, named after Wilbur Olin Atwater, or derivatives of this system are used for the calculation of the available energy of foods. The system was developed largely from the experimental studies of Atwater and his colleagues in the later part of the 19th century and the early years of the 20th at Wesleyan...
Time Protocol
The Time Protocol is a network protocol in the Internet Protocol Suite defined in 1983 in RFC 868 by Jon Postel and K. Harrenstein. Its purpose is to provide a site-independent, machine readable date and time.
Antiseptic
An antiseptic (Greek: ἀντί, romanized: anti, lit. 'against' and σηπτικός, sēptikos, 'putrefactive') is an antimicrobial substance or compound that is applied to living tissue to reduce the possibility of sepsis, infection or putrefaction. Antiseptics are generally distinguished from antibiotics by the latter's ability ...
Photosynthesis
Photosynthesis ( FOH-tə-SINTH-ə-sis) is a biological process used by many cellular organisms to convert light energy into chemical energy, which is stored in organic compounds that can later be metabolized through cellular respiration to fuel the organism's activities. The term usually refers to oxygenic photosynthesis...
Shear rate
In physics, shear rate is the rate at which a progressive shearing deformation is applied to some material.
Calkin algebra
In functional analysis, the Calkin algebra, named after John Williams Calkin, is the quotient of B(H), the ring of bounded linear operators on a separable infinite-dimensional Hilbert space H, by the ideal K(H) of compact operators. Here the addition in B(H) is addition of operators and the multiplication in B(H) is co...
JAM Message Base Format
The JAM Message Base Format was one of the most popular file formats of message bases on DOS-based BBSes in the 1990s. JAM stands for "Joaquim-Andrew-Mats" after the original authors of the API, Joaquim Homrighausen, Andrew Milner, Mats Birch, and Mats Wallin. Joaquim was the author of FrontDoor, a DOS-based FidoNet-co...
Cambridge English Teaching Framework
The Cambridge English Teaching Framework is a professional development framework, designed by Cambridge English Language Assessment, which is used by English language teachers to self-assess and plan their own development.