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Checkdown
In American football, a checkdown pass is when the quarterback attempts to complete a short, accurate pass, typically to a running back or tight end, as a last option when the primary option(s) as designed by the play call are covered. The term means that the quarterback has "checked down" his list of receivers. Becaus...
FMN reductase (NAD(P)H)
FMN reductase (NAD(P)H) (EC 1.5.1.39, FRG) is an enzyme with systematic name FMNH2:NAD(P)+ oxidoreductase. This enzyme catalyses the following chemical reaction FMNH2 + NAD(P)+ ⇌ FMN + NAD(P)H + H+This enzyme contains FMN.
Kūdō
Kūdō (空道, Kūdō) is a Japanese hybrid martial art. It is a full-contact combat sport that aims to achieve both safety and practicality, a style of mixed martial arts practised with headgear and gloves. It features stand-up striking, with throwing and grappling techniques being also allowed in the competition, including...
Option style
In finance, the style or family of an option is the class into which the option falls, usually defined by the dates on which the option may be exercised. The vast majority of options are either European or American (style) options. These options—as well as others where the payoff is calculated similarly—are referred to...
Hope (cigarette)
Hope is a brand of Tobacco that refers to two unrelated cigarette brands; one produced in Japan by Japan Tobacco and the other produced in the Philippines by PMFTC.
Charlotte spiral
The Charlotte (pronounced shar-lot) spiral, also known as the candle stick or fadeout, is a figure skating spiral. The skater bends forward and glides on one leg with the other one lifted into the air. The skater's torso is upright, but during the Charlotte, the skater's torso is as close to the grounded foot as possib...
Open biopsy
An open biopsy is a procedure in which a surgical incision (cut) is made through the skin to expose and remove tissues. The biopsy tissue is examined under a microscope by a pathologist. An open biopsy may be done in the doctor's office or hospital, and may use local anesthesia or general anesthesia. A lumpectomy to re...
W00t
The term w00t (spelled with double-zero, "00"), or woot, is a slang interjection used to express happiness or excitement, usually used in online conversation. The expression is most popular on forums, Usenet posts, multiplayer computer games (especially first-person shooters), IRC chats, and instant messages, though us...
Report generator
A report generator is a computer program whose purpose is to take data from a source such as a database, XML stream or a spreadsheet, and use it to produce a document in a format which satisfies a particular human readership. Report generation functionality is almost always present in database systems, where the source...
Star domain
In geometry, a set S in the Euclidean space Rn is called a star domain (or star-convex set, star-shaped set or radially convex set) if there exists an s0∈S such that for all s∈S, the line segment from s0 to s lies in S. This definition is immediately generalizable to any real, or complex, vector space. Intuitive...
Bismuth oxychloride
Bismuth oxychloride is an inorganic compound of bismuth with the formula BiOCl. It is a lustrous white solid used since antiquity, notably in ancient Egypt. Light wave interference from its plate-like structure gives a pearly iridescent light reflectivity similar to nacre. It is also known as pearl white.
Martyrdom video
Martyrdom videos are video recordings, generally from Islamist jihadists who are about to take part in a suicide attack and expect to die during their intended actions. They typically include a statement by the person preparing to be a martyr for their cause. They can be of amateur or professional quality and often inc...
Vertically transmitted infection
A vertically transmitted infection is an infection caused by pathogenic bacteria or viruses that use mother-to-child transmission, that is, transmission directly from the mother to an embryo, fetus, or baby during pregnancy or childbirth. It can occur when the mother has a pre-existing disease or becomes infected durin...
Union type
In computer science, a union is a value that may have any of several representations or formats within the same position in memory; that consists of a variable that may hold such a data structure. Some programming languages support special data types, called union types, to describe such values and variables. In other ...
Shell (structure)
A shell is a three-dimensional solid structural element whose thickness is very small compared to its other dimensions. It is characterized in structural terms by mid-plane stress which is both coplanar and normal to the surface. A shell can be derived from a plate in two steps: by initially forming the middle surface ...
NZ COVID Tracer
NZ COVID Tracer is a mobile software application that enables a person to record places they have visited, in order to facilitate tracing who may have been in contact with a person infected with the COVID-19 virus. The app allows users to scan official QR codes at the premises of businesses and other organisations they...
Generalized vaccinia
Generalized vaccinia is a cutaneous condition that occurs 6–9 days after vaccination, characterized by a generalized eruption of skin lesions, and caused by the vaccinia virus.: 391
First passage percolation
First passage percolation is a mathematical method used to describe the paths reachable in a random medium within a given amount of time.
Alper Demir
Alper Demir is a Professor of Electrical Engineering at Koç University in Istanbul, Turkey. He was named a Fellow of the Institute of Electrical and Electronics Engineers (IEEE) in 2012 for his contributions to stochastic modeling and analysis of phase noise.
DDX23
Probable ATP-dependent RNA helicase DDX23 is an enzyme that in humans is encoded by the DDX23 gene.This gene encodes a member of the DEAD box protein family. DEAD box proteins, characterized by the conserved motif Asp-Glu-Ala-Asp (DEAD), are putative RNA helicases. They are implicated in a number of cellular processes ...
GalP (protein)
The galactose permease or GalP found in Escherichia coli is an integral membrane protein involved in the transport of monosaccharides, primarily hexoses, for utilization by E. coli in glycolysis and other metabolic and catabolic pathways (3,4). It is a member of the Major Facilitator Super Family (MFS) and is homologue...
Flying qualities
Flying qualities is one of the three principal regimes in the science of flight test, which also includes performance and systems. Flying qualities involves the study and evaluation of the stability and control characteristics of an aircraft. They have a critical bearing on the safety of flight and on the ease of contr...
Geomagnetic secular variation
Geomagnetic secular variation refers to changes in the Earth's magnetic field on time scales of about a year or more. These changes mostly reflect changes in the Earth's interior, while more rapid changes mostly originate in the ionosphere or magnetosphere.The geomagnetic field changes on time scales from milliseconds ...
Programming by demonstration
In computer science, programming by demonstration (PbD) is an end-user development technique for teaching a computer or a robot new behaviors by demonstrating the task to transfer directly instead of programming it through machine commands.
Mycoplasma laboratorium
Mycoplasma laboratorium or Synthia refers to a synthetic strain of bacterium. The project to build the new bacterium has evolved since its inception. Initially the goal was to identify a minimal set of genes that are required to sustain life from the genome of Mycoplasma genitalium, and rebuild these genes syntheticall...
Shiftability theory
In banking, shiftability is an approach to keep banks liquid by supporting the shifting of assets. When a bank is short of ready money, it is able to sell or repo its assets to a more liquid bank.
UPd2Al3
UPd2Al3 is a heavy-fermion superconductor with a hexagonal crystal structure and critical temperature Tc=2.0K that was discovered in 1991. Furthermore, UPd2Al3 orders antiferromagnetically at TN=14K, and UPd2Al3 thus features the unusual behavior that this material, at temperatures below 2K, is simultaneously supercond...
Hedge
A hedge or hedgerow is a line of closely spaced shrubs and sometimes trees, planted and trained to form a barrier or to mark the boundary of an area, such as between neighbouring properties. Hedges that are used to separate a road from adjoining fields or one field from another, and are of sufficient age to incorporate...
Butyltin trichloride
Monobutyltin trichloride, also known as MBTC, is an organotin compound. It is a colorless oil that is soluble in organic solvents. Relative to other organotin compounds, MBTC is obscure and not widely used.
XPNPEP2
Xaa-Pro aminopeptidase 2 is an enzyme that in humans is encoded by the XPNPEP2 gene.Aminopeptidase P is a hydrolase specific for N-terminal imido bonds, which are common to several collagen degradation products, neuropeptides, vasoactive peptides, and cytokines. Structurally, the enzyme is a member of the 'pita bread f...
Centromere
The centromere links a pair of sister chromatids together during cell division. This constricted region of chromosome connects the sister chromatids, creating a short arm (p) and a long arm (q) on the chromatids. During mitosis, spindle fibers attach to the centromere via the kinetochore.
Herkie
The herkie (aka hurkie) is a cheerleading jump named after Lawrence Herkimer, the founder of the National Cheerleaders Association and former cheerleader at Southern Methodist University. It is similar to a side-hurdler and to the abstract double hook, except instead of the bent leg's knee being pointed downward, it sh...
Code property graph
In computer science, a code property graph (CPG) is a computer program representation that captures syntactic structure, control flow, and data dependencies in a property graph. The concept was originally introduced to identify security vulnerabilities in C and C++ system code, but has since been employed to analyze we...
Compton telescope
A Compton telescope (also known as Compton camera or Compton imager) is a gamma-ray detector which utilizes Compton scattering to determine the origin of the observed gamma rays. Compton cameras are usually applied to detect gamma rays in the energy range where Compton scattering is the dominating interaction process, ...
Axial multipole moments
Axial multipole moments are a series expansion of the electric potential of a charge distribution localized close to the origin along one Cartesian axis, denoted here as the z-axis. However, the axial multipole expansion can also be applied to any potential or field that varies inversely with the distance to the source...
Smooth scheme
In algebraic geometry, a smooth scheme over a field is a scheme which is well approximated by affine space near any point. Smoothness is one way of making precise the notion of a scheme with no singular points. A special case is the notion of a smooth variety over a field. Smooth schemes play the role in algebraic geom...
Classical Mechanics (Kibble and Berkshire)
Classical Mechanics is a well-established textbook written by Thomas Walter Bannerman Kibble and Frank Berkshire of the Imperial College Mathematics Department. The book provides a thorough coverage of the fundamental principles and techniques of classical mechanics, a long-standing subject which is at the base of all ...
Methexis
In theatre, methexis (Ancient Greek: μέθεξις; also methectics), is "group sharing". Originating from Greek theatre, the audience participates, creates and improvises the action of the ritual.
Potty chair
A potty chair, or simply a potty, is a proportionately small chair or enclosure with an opening for seating very young children to "go potty." It is a variant of the close stool which was used by adults before the widespread adoption of water flushed toilets. There are a variety of designs, some placed directly over th...
Solothurn Madonna
The Solothurn Madonna is a 1522 painting produced by Hans Holbein the Younger in Basel. It shows the Virgin Mary and Christ enthroned, flanked by Martin of Tours (shown as a bishop giving alms to a beggar) and Ursus of Solothurn (shown as a soldier in armour). Holbein used his wife Elsbeth as his model for the Madonna,...
Charting application
A charting application is a computer program that is used to create a graphical representation (a chart) based on some non-graphical data that is entered by a user, most often through a spreadsheet application, but also through a dedicated specific scientific application (such as through a symbolic mathematics computin...
Glossary of board games
This glossary of board games explains commonly used terms in board games, in alphabetical order. For a list of board games, see List of board games; for terms specific to chess, see Glossary of chess; for terms specific to chess problems, see Glossary of chess problems.
Vodka tonic
A vodka tonic is a long drink made with varying proportions of vodka and tonic water. Vodka tonics are frequently garnished with a slice of lime or lemon. One commonly used recipe is one part vodka and one part tonic water in a tumbler, often a highball glass over ice, with a generous lime wedge squeezed into it.The dr...
Opinion piece
An opinion piece is an article, usually published in a newspaper or magazine, that mainly reflects the author's opinion about a subject. Opinion pieces are featured in many periodicals.
Signalling Connection Control Part
The Signalling Connection Control Part (SCCP) is a network layer protocol that provides extended routing, flow control, segmentation, connection-orientation, and error correction facilities in Signaling System 7 telecommunications networks. SCCP relies on the services of MTP for basic routing and error detection.
Iptables
iptables is a user-space utility program that allows a system administrator to configure the IP packet filter rules of the Linux kernel firewall, implemented as different Netfilter modules. The filters are organized in different tables, which contain chains of rules for how to treat network traffic packets. Different k...
Standard normal table
In statistics, a standard normal table, also called the unit normal table or Z table, is a mathematical table for the values of Φ, the cumulative distribution function of the normal distribution. It is used to find the probability that a statistic is observed below, above, or between values on the standard normal distr...
Double diode triode
A double diode triode is a type of electronic vacuum tube once widely used in radio receivers. The tube has a triode for amplification, along with two diodes, one typically for use as a detector and the other as a rectifier for automatic gain control, in one envelope. In practice the two diodes usually share a common c...
Lichnerowicz conjecture
In mathematics, the Lichnerowicz conjecture is a generalization of a conjecture introduced by Lichnerowicz (1944). Lichnerowicz's original conjecture was that locally harmonic 4-manifolds are locally symmetric, and was proved by Walker (1949). The Lichnerowicz conjecture usually refers to the generalization that locall...
History of psychology
Psychology is defined as "the scientific study of behavior and mental processes". Philosophical interest in the human mind and behavior dates back to the ancient civilizations of Egypt, Persia, Greece, China, and India.Psychology as a field of experimental study began in 1854 in Leipzig, Germany when Gustav Fechner cre...
Scarlet Spider
The Scarlet Spider is an alias used by several fictional characters appearing in American comic books published by Marvel Comics, most notably Ben Reilly and Kaine Parker, both of whom are genetic replicates of the superhero Spider-Man. Both the Ben Reilly and Kaine Parker incarnations of Scarlet Spider appear in Spide...
Longitudinal data system
Longitudinal data system is a data system capable of tracking student information over multiple years in multiple schools. The term appears in Federal law of the United States to describe such a system. Federal funding is provided to aid the design and implementation of such systems.
Pont's Analysis
Pont's Analysis is an analysis developed by Pont in 1909. This analysis allows one to predict the width of the maxillary arch at the premolar and molar region by measure the mesio-distal widths of the four permanent incisors. The analysis helps to determine if the dental arch is narrow or normal and if expansion is pos...
Predicted no-effect concentration
The predicted no-effect concentration (PNEC) is the concentration of a chemical which marks the limit at which below no adverse effects of exposure in an ecosystem are measured. PNEC values are intended to be conservative and predict the concentration at which a chemical will likely have no toxic effect. They are not i...
Down Under rat
The Down Under rat (Downunder or DU) is a fancy rat variety noted for the markings on its stomach. The "downunder" marking refers to both a patch of colour on the underside of the rat which matches the coat colouring on the top, and to the variety's Australian origins.While most varieties either have a white pattern on...
Biological data visualization
Biology data visualization is a branch of bioinformatics concerned with the application of computer graphics, scientific visualization, and information visualization to different areas of the life sciences. This includes visualization of sequences, genomes, alignments, phylogenies, macromolecular structures, systems bi...
Super Bomberman 2
Super Bomberman 2 is a video game developed by Produce! and Hudson Soft and released on the Super Nintendo Entertainment System. It was released in Japan on April 28, 1994, in North America later the same year, and in Europe on February 23, 1995. It is the second installment of the Super Bomberman series, part of the ...
Pyeloplasty
Pyeloplasty is a type of surgical procedure performed to treat an uretero-pelvic junction obstruction if residual renal function is adequate.This revision of the renal pelvis treats the obstruction by excising the stenotic area of the renal pelvis or uretero-pelvic junction and creating a more capacious conduit using t...
Random assignment
Random assignment or random placement is an experimental technique for assigning human participants or animal subjects to different groups in an experiment (e.g., a treatment group versus a control group) using randomization, such as by a chance procedure (e.g., flipping a coin) or a random number generator. This ensur...
Expensive tissue hypothesis
The expensive tissue hypothesis (ETH) relates brain and gut size in evolution (specifically in human evolution). It suggests that in order for an organism to evolve a large brain without a significant increase in basal metabolic rate (as seen in humans), the organism must use less energy on other expensive tissues; the...
OR5B3
Olfactory receptor 5B3 is a protein that in humans is encoded by the OR5B3 gene.Olfactory receptors interact with odorant molecules in the nose, to initiate a neuronal response that triggers the perception of a smell. The olfactory receptor proteins are members of a large family of G-protein-coupled receptors (GPCR) ar...
Perfect set
In general topology, a subset of a topological space is perfect if it is closed and has no isolated points. Equivalently: the set S is perfect if S=S′ , where S′ denotes the set of all limit points of S , also known as the derived set of S In a perfect set, every point can be approximated arbitrarily well by other...
Once-a-month cooking
The concept of once-a-month cooking (OAMC) is to spend a set amount of time cooking with an end result of having enough meals to last through the whole month. OAMC recipes usually involve freezing the meals until needed (termed freezer cooking).
DOS 1
DOS 1 or DOS-1 may refer to: The Soviet space station Salyut 1, also called DOS-1It may also refer to versions of Seattle Computer Product's 86-DOS (the predecessor to MS-DOS and PC DOS): 86-DOS 1.00, SCP OEM released version on 28 April 1981, licensed to OEMs including Microsoft 86-DOS 1.01, SCP internal version in Ma...
Vitamin D3 dihydroxylase
Vitamin D3 dihydroxylase is a cytochrome P450 enzyme purified from the actinobacterium Streptomyces griseolus, with EC number EC 1.14.15.22 and CYP Symbol CYP105A1 (Cytochrome P450, family 105, member A1), catalyses oxidation of cholecalciferol(vitamin D3) to calcitriol.
DCUN1D1
DCN1-like protein 1 is a protein that in humans is encoded by the DCUN1D1 gene.DCUN1D1 is amplified in several cancer types, including squamous cell cancers, and may act as an oncogenic driver in cancer cells.
IL17A
Interleukin-17A is a protein that in humans is encoded by the IL17A gene. In rodents, IL-17A used to be referred to as CTLA8, after the similarity with a viral gene (O40633).
Java OpenAL
Java OpenAL (JOAL) is one of several wrapper libraries that allows Java programmers to access OpenAL. This allows Java programmers to use 3D sound in applications. JOAL is one of the libraries developed by the Sun Microsystems Game Technology Group. JOAL is released under a BSD license, and is available for Microsoft W...
Crush load
A crush load is a level of passenger loading in a transport vehicle which is so high that passengers are "crushed" against one another. It represents an extreme form of passenger loading, and normally considered to be representative of a system with serious capacity limitations. Crush loads result from too many passeng...
Momentum theory
In fluid dynamics, momentum theory or disk actuator theory is a theory describing a mathematical model of an ideal actuator disk, such as a propeller or helicopter rotor, by W.J.M. Rankine (1865), Alfred George Greenhill (1888) and Robert Edmund Froude (1889).
Semantic gap
The semantic gap characterizes the difference between two descriptions of an object by different linguistic representations, for instance languages or symbols. According to Andreas M. Hein, the semantic gap can be defined as "the difference in meaning between constructs formed within different representation systems". ...
Orbit
In celestial mechanics, an orbit (also known as orbital revolution) is the curved trajectory of an object such as the trajectory of a planet around a star, or of a natural satellite around a planet, or of an artificial satellite around an object or position in space such as a planet, moon, asteroid, or Lagrange point. ...
Friedman test
The Friedman test is a non-parametric statistical test developed by Milton Friedman. Similar to the parametric repeated measures ANOVA, it is used to detect differences in treatments across multiple test attempts. The procedure involves ranking each row (or block) together, then considering the values of ranks by colum...
Catch crop
In agriculture, a catch crop is a fast-growing crop that is grown between successive plantings of a main crop. It is a specific type of cover crop that is grown between two main crops. This crop is utilized as a way to reduce nitrogen leaching but it also promotes environmental benefits such as fortifying soil structur...
Biotin carboxyl carrier protein
Biotin carboxyl carrier protein (BCCP) refers to proteins containing a biotin attachment domain that carry biotin and carboxybiotin throughout the ATP-dependent carboxylation by biotin-dependent carboxylases. The biotin carboxyl carrier protein is an Acetyl CoA subunit that allows for Acetyl CoA to be catalyzed and con...
Hypoxia-activated prodrug
Hypoxia-Activated Prodrugs (HAPs) are prodrugs that target regions of tumor hypoxia within tumor cells. HAPs may offer the potential, alone and in combination with conventional chemotherapy, of improving cancer therapy. It is believed that tumor hypoxia contributes significantly to treatment failure and relapse among c...
Resident DJ
In the DJ culture, a resident DJ or local DJ refers to a DJ is part of the staff of employees of the club, unlike a guest artist, who works as freelancer, which means that he or she plays on several clubs (including several countries). Obtaining a residence implies being part of the salaried staff of a company. Unlike ...
Friedberg numbering
In computability theory, a Friedberg numbering is a numbering (enumeration) of the set of all uniformly recursively enumerable sets that has no repetitions: each recursively enumerable set appears exactly once in the enumeration (Vereščagin and Shen 2003:30). The existence of such numberings was established by Richard ...
Preferred walking speed
The preferred walking speed is the speed at which humans or animals choose to walk. Many people tend to walk at about 1.42 metres per second (5.1 km/h; 3.2 mph; 4.7 ft/s). Individuals find slower or faster speeds uncomfortable.
Shaper
In machining, a shaper is a type of machine tool that uses linear relative motion between the workpiece and a single-point cutting tool to machine a linear toolpath. Its cut is analogous to that of a lathe, except that it is (archetypally) linear instead of helical. A wood shaper is a functionally different woodworkin...
Lightbot
Lightbot is an educational video game for learning software programming concepts, developed by Danny Yaroslavski. Lightbot has been played 7 million times, and is highly rated on iTunes and Google Play store. Lightbot is available as an online Flash game, and an application for Android and iOS mobile phones. Lightbot h...
Consolidated Tape System
The Consolidated Tape System (CTS) is the electronic service, introduced in April 1976, that provides last sale and trade data for issues admitted to dealings on the American Stock Exchange, New York Stock Exchange, and U.S. regional stock exchanges.The Consolidated Tape Association (CTA) is the operating authority for...
Doug Madory
Doug Madory is an American Internet routing infrastructure expert, who specializes in analyzing Internet Border Gateway Protocol (BGP) routing data to diagnose Internet routing disruptions, such as those caused by communications fiber cable cuts, routing equipment failures, and governmental censorship. His academic bac...
Faking (music)
In instrumental music, "faking" is the process by which a musician gives the "...impression of playing every note as written" in the printed music part, typically for a very challenging passage that is very high in pitch and/or very rapid, while not actually playing all of the notes in the part. Faking may be done by a...
Push processing
Push processing in photography, sometimes called uprating, refers to a film developing technique that increases the effective sensitivity of the film being processed. Push processing involves developing the film for more time, possibly in combination with a higher temperature, than the manufacturer's recommendations. T...
Machine translation of sign languages
The machine translation of sign languages has been possible, albeit in a limited fashion, since 1977. When a research project successfully matched English letters from a keyboard to ASL manual alphabet letters which were simulated on a robotic hand. These technologies translate signed languages into written or spoken l...
Tenascin C
Tenascin C (TN-C) is a glycoprotein that in humans is encoded by the TNC gene. It is expressed in the extracellular matrix of various tissues during development, disease or injury, and in restricted neurogenic areas of the central nervous system. Tenascin-C is the founding member of the tenascin protein family. In the ...
Weather routing
Weather routing is a commercial service provided by commercial companies for cargo ships, to optimize their voyage performance. An adventure version of the same used for sailing boats is referred to as sailing weather prediction or sailing weather routing. The latter focusses more on the forecasting and routing of wind...
Automatism (medicine)
Automatism is a set of brief unconscious behaviors, typically at least several seconds or minutes, while the subject is unaware of actions. This type of automatic behavior often occurs in certain types of epilepsy, such as complex partial seizures in those with temporal lobe epilepsy, or as a side effect of particular ...
Jervine
Jervine is a steroidal alkaloid with molecular formula C27H39NO3 which is derived from the plant genus Veratrum. Similar to cyclopamine, which also occurs in the genus Veratrum, it is a teratogen implicated in birth defects when consumed by animals during a certain period of their gestation.
Core relational theme
A core relational theme is the central or core meaning associated with a certain emotion. Core relational themes were introduced by Richard Lazarus, based on his appraisal approach to understanding emotion.
Schnuerle porting
Schnuerle porting is a system to improve efficiency of a valveless two-stroke engine by giving better scavenging. The intake and exhaust ports cut in the cylinder wall are shaped to give a more efficient transfer of intake and exhaust gases.
C++/CLI
C++/CLI is a variant of the C++ programming language, modified for Common Language Infrastructure. It has been part of Visual Studio 2005 and later, and provides interoperability with other .NET languages such as C#. Microsoft created C++/CLI to supersede Managed Extensions for C++. In December 2005, Ecma International...
Ternary fission
Ternary fission is a comparatively rare (0.2 to 0.4% of events) type of nuclear fission in which three charged products are produced rather than two. As in other nuclear fission processes, other uncharged particles such as multiple neutrons and gamma rays are produced in ternary fission. Ternary fission may happen dur...
Karl Johan Åström
Karl Johan Åström (born August 5, 1934) is a Swedish control theorist, who has made contributions to the fields of control theory and control engineering, computer control and adaptive control. In 1965, he described a general framework of Markov decision processes with incomplete information, what ultimately led to the...
No-hair theorem
The no-hair theorem states that all stationary black hole solutions of the Einstein–Maxwell equations of gravitation and electromagnetism in general relativity can be completely characterized by only three independent externally observable classical parameters: mass, electric charge, and angular momentum. Other charact...
Algebraic Riccati equation
An algebraic Riccati equation is a type of nonlinear equation that arises in the context of infinite-horizon optimal control problems in continuous time or discrete time. A typical algebraic Riccati equation is similar to one of the following: the continuous time algebraic Riccati equation (CARE): ATP+PA−PBR−1BTP+Q=0 o...
Disconnection syndrome
Disconnection syndrome is a general term for a collection of neurological symptoms caused – via lesions to associational or commissural nerve fibres – by damage to the white matter axons of communication pathways in the cerebrum (not to be confused with the cerebellum), independent of any lesions to the cortex. The beh...
Viewable impression
In the online advertising industry, a viewable impression is a measure of whether a given advert was actually seen by a human being, as opposed to being out of view or served as the result of automated activity. The viewable impression guidelines are administered by the Media Rating Council and require that a minimum o...
Science of Science Tool (Sci2)
The Science of Science (Sci2) Tool is a modular toolset specifically designed for the study of science. It supports the temporal, geospatial, topical, and network analysis and visualization of datasets at the micro (individual), meso (local), and macro (global) levels. Users of the tool can: Access science datasets onl...