source stringlengths 31 227 | text stringlengths 9 2k |
|---|---|
https://en.wikipedia.org/wiki/Species%20discovery%20curve | In ecology, the species discovery curve (also known as a species accumulation curve or collector's curve) is a graph recording the cumulative number of species of living things recorded in a particular environment as a function of the cumulative effort expended searching for them (usually measured in person-hours). It... |
https://en.wikipedia.org/wiki/Inverse%20dynamics | Inverse dynamics is an inverse problem. It commonly refers to either inverse rigid body dynamics or inverse structural dynamics. Inverse rigid-body dynamics is a method for computing forces and/or moments of force (torques) based on the kinematics (motion) of a body and the body's inertial properties (mass and moment o... |
https://en.wikipedia.org/wiki/Phototube | A phototube or photoelectric cell is a type of gas-filled or vacuum tube that is sensitive to light. Such a tube is more correctly called a 'photoemissive cell' to distinguish it from photovoltaic or photoconductive cells. Phototubes were previously more widely used but are now replaced in many applications by solid ... |
https://en.wikipedia.org/wiki/Degree%20distribution | In the study of graphs and networks, the degree of a node in a network is the number of connections it has to other nodes and the degree distribution is the probability distribution of these degrees over the whole network.
Definition
The degree of a node in a network (sometimes referred to incorrectly as the connectiv... |
https://en.wikipedia.org/wiki/Progressive%20contextualization | Progressive contextualization (PC) is a scientific method pioneered and developed by Andrew P. Vayda and research team between 1979 and 1984. The method was developed to help understand cause of damage and destruction of forest and land during the New Order Regime in Indonesia, as well as practical ethnography. Vayda p... |
https://en.wikipedia.org/wiki/Activity%20%28UML%29 | An activity in Unified Modeling Language (UML) is a major task that must take place in order to fulfill an operation contract. The Student Guide to Object-Oriented Development defines an activity as a sequence of activities that make up a process. Activities can be represented in activity diagrams
An activity can repr... |
https://en.wikipedia.org/wiki/Ultradian%20rhythm | In chronobiology, an ultradian rhythm is a recurrent period or cycle repeated throughout a 24-hour day. In contrast, circadian rhythms complete one cycle daily, while infradian rhythms such as the human menstrual cycle have periods longer than a day. The Oxford English Dictionary's definition of Ultradian specifies tha... |
https://en.wikipedia.org/wiki/Feshbach%20resonance | In physics, a Feshbach resonance can occur upon collision of two slow atoms, when they temporarily stick together forming an unstable compound with short lifetime (so-called resonance). It is a feature of many-body systems in which a bound state is achieved if the coupling(s) between at least one internal degree of fre... |
https://en.wikipedia.org/wiki/Stokes%20operators | The Stokes operators are the quantum mechanical operators corresponding to the classical Stokes parameters. These matrix operators are identical to the Pauli matrices .
External links
Stokes operators, angular momentum and radiation phase.
Quantum mechanics |
https://en.wikipedia.org/wiki/Alvy%20Ray%20Smith | Alvy Ray Smith III (born September 8, 1943) is an American computer scientist who co-founded Lucasfilm's Computer Division and Pixar, participating in the 1980s and 1990s expansion of computer animation into feature film.
Education
In 1965 Alvy Smith received his bachelor's degree in electrical engineering from New M... |
https://en.wikipedia.org/wiki/Fixed-point%20index | In mathematics, the fixed-point index is a concept in topological fixed-point theory, and in particular Nielsen theory. The fixed-point index can be thought of as a multiplicity measurement for fixed points.
The index can be easily defined in the setting of complex analysis: Let f(z) be a holomorphic mapping on the co... |
https://en.wikipedia.org/wiki/Evolutionary%20graph%20theory | Evolutionary graph theory is an area of research lying at the intersection of graph theory, probability theory, and mathematical biology. Evolutionary graph theory is an approach to studying how topology affects evolution of a population. That the underlying topology can substantially affect the results of the evolutio... |
https://en.wikipedia.org/wiki/Image%20moment | In image processing, computer vision and related fields, an image moment is a certain particular weighted average (moment) of the image pixels' intensities, or a function of such moments, usually chosen to have some attractive property or interpretation.
Image moments are useful to describe objects after segmentation.... |
https://en.wikipedia.org/wiki/Pathovar | A pathovar is a bacterial strain or set of strains with the same or similar characteristics, that is differentiated at infrasubspecific level from other strains of the same species or subspecies on the basis of distinctive pathogenicity to one or more plant hosts.
Pathovars are named as a ternary or quaternary additio... |
https://en.wikipedia.org/wiki/Differential%20space%E2%80%93time%20code | Differential space–time codes are ways of transmitting data in wireless communications. They are forms of space–time code that do not need to know the channel impairments at the receiver in order to be able to decode the signal. They are usually based on space–time block codes, and transmit one block-code from a set i... |
https://en.wikipedia.org/wiki/Goertzel%20algorithm | The Goertzel algorithm is a technique in digital signal processing (DSP) for efficient evaluation of the individual terms of the discrete Fourier transform (DFT). It is useful in certain practical applications, such as recognition of dual-tone multi-frequency signaling (DTMF) tones produced by the push buttons of the k... |
https://en.wikipedia.org/wiki/Coulomb%20blockade | In mesoscopic physics, a Coulomb blockade (CB), named after Charles-Augustin de Coulomb's electrical force, is the decrease in electrical conductance at small bias voltages of a small electronic device comprising at least one low-capacitance tunnel junction. Because of the CB, the conductance of a device may not be con... |
https://en.wikipedia.org/wiki/Principles%20of%20Mathematical%20Logic | Principles of Mathematical Logic is the 1950 American translation of the 1938 second edition of David Hilbert's and Wilhelm Ackermann's classic text Grundzüge der theoretischen Logik, on elementary mathematical logic. The 1928 first edition thereof is considered the first elementary text clearly grounded in the formal... |
https://en.wikipedia.org/wiki/Meron%20%28physics%29 | A meron or half-instanton is a Euclidean space-time solution of the Yang–Mills field equations. It is a singular non-self-dual solution of topological charge 1/2. The instanton is believed to be composed of two merons.
A meron can be viewed as a tunneling event between two Gribov vacua. In that picture, the meron is a... |
https://en.wikipedia.org/wiki/Wu%E2%80%93Yang%20monopole | The Wu–Yang monopole was the first solution (found in 1968 by Tai Tsun Wu and Chen Ning Yang) to the Yang–Mills field equations. It describes a magnetic monopole which is pointlike and has a potential which behaves like 1/r everywhere.
See also
Meron
Dyon
Instanton
Wu–Yang dictionary
Notes |
https://en.wikipedia.org/wiki/Nitrosomonas | Nitrosomonas is a genus of Gram-negative bacteria, belonging to the Betaproteobacteria. It is one of the five genera of ammonia-oxidizing bacteria and, as an obligate chemolithoautotroph, uses ammonia (NH3) as an energy source and carbon dioxide (CO2) as a carbon source in presence of oxygen. Nitrosomonas are important... |
https://en.wikipedia.org/wiki/Snapshot%20%28computer%20storage%29 | In computer systems, a snapshot is the state of a system at a particular point in time. The term was coined as an analogy to that in photography.
Rationale
A full backup of a large data set may take a long time to complete. On multi-tasking or multi-user systems, there may be writes to that data while it is being bac... |
https://en.wikipedia.org/wiki/Alarm%20signal | In animal communication, an alarm signal is an antipredator adaptation in the form of signals emitted by social animals in response to danger. Many primates and birds have elaborate alarm calls for warning conspecifics of approaching predators. For example, the alarm call of the blackbird is a familiar sound in many ga... |
https://en.wikipedia.org/wiki/Sardine%20run | The KwaZulu-Natal sardine run of southern Africa occurs from May through July when billions of sardines – or more specifically the Southern African pilchard Sardinops sagax – spawn in the cool waters of the Agulhas Bank and move northward along the east coast of South Africa. Their sheer numbers create a feeding frenzy... |
https://en.wikipedia.org/wiki/Lip | The lips are a horizontal pair of soft appendages attached to the jaws and are the most visible part of the mouth of many animals, including humans. Vertebrate lips are soft, movable and serve to facilitate the ingestion of food (e.g. suckling and gulping) and the articulation of sound and speech. Human lips are also a... |
https://en.wikipedia.org/wiki/E0%20%28cipher%29 | E0 is a stream cipher used in the Bluetooth protocol. It generates a sequence of pseudorandom numbers and combines it with the data using the XOR operator. The key length may vary, but is generally 128 bits.
Description
At each iteration, E0 generates a bit using four shift registers of differing lengths (25, 31, 33,... |
https://en.wikipedia.org/wiki/Lattice%20multiplication | Lattice multiplication, also known as the Italian method, Chinese method, Chinese lattice, gelosia multiplication, sieve multiplication, shabakh, diagonally or Venetian squares, is a method of multiplication that uses a lattice to multiply two multi-digit numbers. It is mathematically identical to the more commonly use... |
https://en.wikipedia.org/wiki/Dual%20format | Dual format is a technique used to allow software for two systems which would normally require different disk formats to be recorded on the same floppy disk.
In the late 1980s, the term was used to refer to disks that could be used to boot either an Amiga or Atari ST computer. The layout of the first track of the disk... |
https://en.wikipedia.org/wiki/Drag%20%28physics%29 | In fluid dynamics, drag (sometimes called fluid resistance) is a force acting opposite to the relative motion of any object moving with respect to a surrounding fluid. This can exist between two fluid layers (or surfaces) or between a fluid and a solid surface.
Unlike other resistive forces, such as dry friction, whic... |
https://en.wikipedia.org/wiki/Boomerang%20attack | In cryptography, the boomerang attack is a method for the cryptanalysis of block ciphers based on differential cryptanalysis. The attack was published in 1999 by David Wagner, who used it to break the COCONUT98 cipher.
The boomerang attack has allowed new avenues of attack for many ciphers previously deemed safe from ... |
https://en.wikipedia.org/wiki/Perfect%20fluid | In physics, a perfect fluid or ideal fluid is a fluid that can be completely characterized by its rest frame mass density and isotropic pressure p. Real fluids are "sticky" and contain (and conduct) heat. Perfect fluids are idealized models in which these possibilities are neglected. Specifically, perfect fluids have... |
https://en.wikipedia.org/wiki/Prewellordering | In set theory, a prewellordering on a set is a preorder on (a transitive and reflexive relation on ) that is strongly connected (meaning that any two points are comparable) and well-founded in the sense that the induced relation defined by is a well-founded relation.
Prewellordering on a set
A prewellordering on... |
https://en.wikipedia.org/wiki/Quantum%20programming | Quantum programming is the process of designing or assembling sequences of instructions, called quantum circuits, using gates, switches, and operators to manipulate a quantum system for a desired outcome or results of a given experiment. Quantum circuit algorithms can be implemented on integrated circuits, conducted wi... |
https://en.wikipedia.org/wiki/European%20Association%20for%20Theoretical%20Computer%20Science | The European Association for Theoretical Computer Science (EATCS) is an international organization with a European focus, founded in 1972. Its aim is to facilitate the exchange of ideas and results among theoretical computer scientists as well as to stimulate cooperation between the theoretical and the practical commun... |
https://en.wikipedia.org/wiki/Connection-oriented%20communication | In telecommunications and computer networking, connection-oriented communication is a communication protocol where a communication session or a semi-permanent connection is established before any useful data can be transferred. The established connection ensures that data is delivered in the correct order to the upper ... |
https://en.wikipedia.org/wiki/Air%20suspension | Air suspension is a type of vehicle suspension powered by an electric or engine-driven air pump or compressor. This compressor pumps the air into a flexible bellows, usually made from textile-reinforced rubber. Unlike hydropneumatic suspension, which offers many similar features, air suspension does not use pressurized... |
https://en.wikipedia.org/wiki/Cornering%20force | Cornering force or side force is the lateral (i.e., parallel to wheel axis) force produced by a vehicle tire during cornering.
Cornering force is generated by tire slip and is proportional to slip angle at low slip angles. The rate at which cornering force builds up is described by relaxation length. Slip angle descr... |
https://en.wikipedia.org/wiki/Aeronomy | Aeronomy is the scientific study of the upper atmosphere of the Earth and corresponding regions of the atmospheres of other planets. It is a branch of both atmospheric chemistry and atmospheric physics. Scientists specializing in aeronomy, known as aeronomers, study the motions and chemical composition and properties o... |
https://en.wikipedia.org/wiki/The%20World%20%28book%29 | The World, also called Treatise on the Light (French title: Traité du monde et de la lumière), is a book by René Descartes (1596–1650). Written between 1629 and 1633, it contains a nearly complete version of his philosophy, from method, to metaphysics, to physics and biology.
Descartes espoused mechanical philosophy, ... |
https://en.wikipedia.org/wiki/Ordinal%20arithmetic | In the mathematical field of set theory, ordinal arithmetic describes the three usual operations on ordinal numbers: addition, multiplication, and exponentiation. Each can be defined in essentially two different ways: either by constructing an explicit well-ordered set that represents the result of the operation or by ... |
https://en.wikipedia.org/wiki/Finite%20morphism | In algebraic geometry, a finite morphism between two affine varieties is a dense regular map which induces isomorphic inclusion between their coordinate rings, such that is integral over . This definition can be extended to the quasi-projective varieties, such that a regular map between quasiprojective varieties is... |
https://en.wikipedia.org/wiki/Cirsium%20arvense | Cirsium arvense is a perennial species of flowering plant in the family Asteraceae, native throughout Europe and western Asia, northern Africa and widely introduced elsewhere. The standard English name in its native area is creeping thistle. It is also commonly known as Canada thistle and field thistle.
The plant is b... |
https://en.wikipedia.org/wiki/A%20Course%20of%20Modern%20Analysis | A Course of Modern Analysis: an introduction to the general theory of infinite processes and of analytic functions; with an account of the principal transcendental functions (colloquially known as Whittaker and Watson) is a landmark textbook on mathematical analysis written by Edmund T. Whittaker and George N. Watson, ... |
https://en.wikipedia.org/wiki/Product%20term | In Boolean logic, a product term is a conjunction of literals, where each literal is
either a variable or its negation.
Examples
Examples of product terms include:
Origin
The terminology comes from the similarity of AND
to multiplication as in the ring structure of Boolean rings.
Minterms
For a boolean function of ... |
https://en.wikipedia.org/wiki/Keyhole%20Markup%20Language | Keyhole Markup Language (KML) is an XML notation for expressing geographic annotation and visualization within two-dimensional maps and three-dimensional Earth browsers. KML was developed for use with Google Earth, which was originally named Keyhole Earth Viewer. It was created by Keyhole, Inc, which was acquired by Go... |
https://en.wikipedia.org/wiki/Mass%20ratio | In aerospace engineering, mass ratio is a measure of the efficiency of a rocket. It describes how much more massive the vehicle is with propellant than without; that is, the ratio of the rocket's wet mass (vehicle plus contents plus propellant) to its dry mass (vehicle plus contents). A more efficient rocket design re... |
https://en.wikipedia.org/wiki/Mason%27s%20mark | A mason's mark is an engraved symbol often found on dressed stone in buildings and other public structures.
In stonemasonry
Regulations issued in Scotland in 1598 by James VI's Master of Works, William Schaw, stated that on admission to the guild, every mason had to enter his name and his mark in a register. There a... |
https://en.wikipedia.org/wiki/Adaptec | Adaptec, Inc., was a computer storage company and remains a brand for computer storage products. The company was an independent firm from 1981 to 2010, at which point it was acquired by PMC-Sierra, which itself was later acquired by Microsemi, which itself was later acquired by Microchip Technology.
History
Larry Bou... |
https://en.wikipedia.org/wiki/Ballblazer | Ballblazer is a futuristic sports game created by Lucasfilm Games and published in 1985 by Epyx. Along with Rescue on Fractalus!, it was one of the initial pair of releases from Lucasfilm Games, Ballblazer was developed and first published for the Atari 8-bit family. The principal creator and programmer was David Levi... |
https://en.wikipedia.org/wiki/Domain-specific%20modeling | Domain-specific modeling (DSM) is a software engineering methodology for designing and developing systems, such as computer software. It involves systematic use of a domain-specific language to represent the various facets of a system.
Domain-specific modeling languages tend to support higher-level abstractions than ... |
https://en.wikipedia.org/wiki/Tissue%20microarray | Tissue microarrays (also TMAs) consist of paraffin blocks in which up to 1000 separate tissue cores are assembled in array fashion to allow multiplex histological analysis.
History
The major limitations in molecular clinical analysis of tissues include the cumbersome nature of procedures, limited availability of diagn... |
https://en.wikipedia.org/wiki/Huggies%20Pull-Ups | Pull-Ups is a brand of disposable training pants made under the Huggies brand of baby products. The product was first introduced in 1989 and became popular with the slogan "I'm a big kid now!" The training pants are marketed with purple packaging: boys' designs are blue and currently feature characters from the Disney ... |
https://en.wikipedia.org/wiki/Indium%20gallium%20phosphide | Indium gallium phosphide (InGaP), also called gallium indium phosphide (GaInP), is a semiconductor composed of indium, gallium and phosphorus. It is used in high-power and high-frequency electronics because of its superior electron velocity with respect to the more common semiconductors silicon and gallium arsenide.
I... |
https://en.wikipedia.org/wiki/Star%20Force | also released in arcades outside of Japan as Mega Force, is a vertical-scrolling shooter computer game released in 1984 by Tehkan.
Gameplay
In the game, the player pilots a starship called the Final Star, while shooting various enemies and destroying enemy structures for points.
Unlike later vertical scrolling shoot... |
https://en.wikipedia.org/wiki/Position%20effect | Position effect is the effect on the expression of a gene when its location in a chromosome is changed, often by translocation. This has been well described in Drosophila with respect to eye color and is known as position effect variegation (PEV).
The phenotype is well characterised by unstable expression of a gene t... |
https://en.wikipedia.org/wiki/Crenation | Crenation (from modern Latin crenatus meaning "scalloped or notched", from popular Latin crena meaning "notch") in botany and zoology, describes an object's shape, especially a leaf or shell, as being round-toothed or having a scalloped edge.
The descriptor can apply to objects of different types, including cells, w... |
https://en.wikipedia.org/wiki/Precision%20Time%20Protocol | The Precision Time Protocol (PTP) is a protocol used to synchronize clocks throughout a computer network. On a local area network, it achieves clock accuracy in the sub-microsecond range, making it suitable for measurement and control systems. PTP is employed to synchronize financial transactions, mobile phone tower tr... |
https://en.wikipedia.org/wiki/Notation%20in%20probability%20and%20statistics | Probability theory and statistics have some commonly used conventions, in addition to standard mathematical notation and mathematical symbols.
Probability theory
Random variables are usually written in upper case roman letters: , , etc.
Particular realizations of a random variable are written in corresponding lower... |
https://en.wikipedia.org/wiki/William%20Porcher%20Miles | William Porcher Miles (July 4, 1822 – May 11, 1899) was an American politician who was among the ardent states' rights advocates, supporters of slavery, and Southern secessionists who came to be known as the "Fire-Eaters." He is notable for having designed the most popular variant of the Confederate flag, originally re... |
https://en.wikipedia.org/wiki/Procept | In mathematics education, a procept is an amalgam of three components: a "process" which produces a mathematical "object" and a "symbol" which is used to represent either process or object. It derives from the work of Eddie Gray and David O. Tall.
The notion was first published in a paper in the Journal for Research i... |
https://en.wikipedia.org/wiki/Glossary%20of%20probability%20and%20statistics | This glossary of statistics and probability is a list of definitions of terms and concepts used in the mathematical sciences of statistics and probability, their sub-disciplines, and related fields. For additional related terms, see Glossary of mathematics and Glossary of experimental design.
A
B
C
D
E
F
G
H
I... |
https://en.wikipedia.org/wiki/Perseus%20%28spy%29 | Perseus () was the code name of a hypothetical Soviet atomic spy that, if real, would have allegedly breached United States national security by infiltrating Los Alamos National Laboratory during the development of the Manhattan Project, and consequently, would have been instrumental for the Soviets in the development ... |
https://en.wikipedia.org/wiki/Ky%20Fan%20inequality | In mathematics, there are two different results that share the common name of the Ky Fan inequality. One is an inequality involving the geometric mean and arithmetic mean of two sets of real numbers of the unit interval. The result was published on page 5 of the book Inequalities by Edwin F. Beckenbach and Richard E. ... |
https://en.wikipedia.org/wiki/Decision%20management | Decision management, also known as enterprise decision management (EDM) or business decision management (BDM) entails all aspects of designing, building and managing the automated decision-making systems that an organization uses to manage its interactions with customers, employees and suppliers. Computerization has ch... |
https://en.wikipedia.org/wiki/Voice%20user%20interface | A voice-user interface (VUI) enables spoken human interaction with computers, using speech recognition to understand spoken commands and answer questions, and typically text to speech to play a reply. A voice command device is a device controlled with a voice user interface.
Voice user interfaces have been added to au... |
https://en.wikipedia.org/wiki/Pruning%20%28morphology%29 | The pruning algorithm is a technique used in digital image processing based on mathematical morphology. It is used as a complement to the skeleton and thinning algorithms to remove unwanted parasitic components (spurs). In this case 'parasitic' components refer to branches of a line which are not key to the overall sha... |
https://en.wikipedia.org/wiki/Metric%20tensor%20%28general%20relativity%29 | In general relativity, the metric tensor (in this context often abbreviated to simply the metric) is the fundamental object of study. The metric captures all the geometric and causal structure of spacetime, being used to define notions such as time, distance, volume, curvature, angle, and separation of the future and t... |
https://en.wikipedia.org/wiki/Multicategory | In mathematics (especially category theory), a multicategory is a generalization of the concept of category that allows morphisms of multiple arity. If morphisms in a category are viewed as analogous to functions, then morphisms in a multicategory are analogous to functions of several variables. Multicategories are als... |
https://en.wikipedia.org/wiki/INMOS%20G364%20framebuffer | The G364 framebuffer was a line of graphics adapters using the SGS Thomson INMOS G364 colour video controller, produced by INMOS (known for their transputer and eventually acquired by SGS Thomson and incorporated into STMicroelectronics) in the early 1990s. The G364 included a RAMDAC and a 64-bit interface to VRAM gra... |
https://en.wikipedia.org/wiki/Coherent%20file%20distribution%20protocol | Coherent File Distribution Protocol (CFDP) is an IETF-documented experimental protocol intended for high-speed one-to-many file transfers. Class 1 is assured delivery, class 2 is blind unassured delivery. |
https://en.wikipedia.org/wiki/GameTap | GameTap was an online video game service established by Turner Broadcasting System (TBS) in 2006. It provided users with classic arcade video games and game-related video content. The service was acquired by French online video game service Metaboli in 2008 as a wholly owned subsidiary; Metaboli aiming to create a glob... |
https://en.wikipedia.org/wiki/Full%20cycle | In a pseudorandom number generator (PRNG), a full cycle or full period is the behavior of a PRNG over its set of valid states. In particular, a PRNG is said to have a full cycle if, for any valid seed state, the PRNG traverses every valid state before returning to the seed state, i.e., the period is equal to the cardin... |
https://en.wikipedia.org/wiki/CRISPR | CRISPR () (an acronym for clustered regularly interspaced short palindromic repeats) is a family of DNA sequences found in the genomes of prokaryotic organisms such as bacteria and archaea. These sequences are derived from DNA fragments of bacteriophages that had previously infected the prokaryote. They are used to det... |
https://en.wikipedia.org/wiki/Thermochromic%20ink | Thermochromic ink (also called thermochromatic ink) is a type of dye that changes color when temperatures increase or decrease. Often used in the manufacture of many toys or product packaging, as well as thermometers. Thermochromic ink can also turn transparent when heat is applied; an example of this type of thermochr... |
https://en.wikipedia.org/wiki/Hydrobiology | Hydrobiology is the science of life and life processes in water. Much of modern hydrobiology can be viewed as a sub-discipline of ecology but the sphere of hydrobiology includes taxonomy, economic and industrial biology, morphology, and physiology. The one distinguishing aspect is that all fields relate to aquatic orga... |
https://en.wikipedia.org/wiki/Apple%20Interactive%20Television%20Box | The Apple Interactive Television Box (AITB) is a television set-top box developed by Apple Computer (now Apple Inc.) in partnership with a number of global telecommunications firms, including British Telecom and Belgacom. Prototypes of the unit were deployed at large test markets in parts of the United States and Europ... |
https://en.wikipedia.org/wiki/Gorongosa%20National%20Park | Gorongosa National Park is at the southern end of the Great African Rift Valley in the heart of central Mozambique, Southeast Africa. The more than park comprises the valley floor and parts of surrounding plateaus. Rivers originating on nearby Mount Gorongosa () water the plain.
Seasonal flooding and waterlogging of ... |
https://en.wikipedia.org/wiki/Change%20of%20variables | In mathematics, a change of variables is a basic technique used to simplify problems in which the original variables are replaced with functions of other variables. The intent is that when expressed in new variables, the problem may become simpler, or equivalent to a better understood problem.
Change of variables is a... |
https://en.wikipedia.org/wiki/Many-to-many | Many-to-many communication occurs when information is shared between groups. Members of a group receive information from multiple senders.
Wikis are a type of many-to-many communication, where multiple editors collaborate to create content that is disseminated among a wide audience. Video conferencing, online gaming, ... |
https://en.wikipedia.org/wiki/Anime%20Web%20Turnpike | Anime Web Turnpike (also known as Anipike) was a web directory founded in August 1995 by Jay Fubler Harvey. It served as a large database of links to various anime and manga websites. With well over 40,000 links, it had one of the largest organized collection of anime and manga related links. Users could add their own ... |
https://en.wikipedia.org/wiki/Viridos%20%28company%29 | In September 2021, Synthetic Genomics Inc. (SGI), a private company located in La Jolla, California, changed its name to Viridos. The company is focused on the field of synthetic biology, especially harnessing photosynthesis with micro algae to create alternatives to fossil fuels. Viridos designs and builds biological... |
https://en.wikipedia.org/wiki/SOG%20Knife | The SOG Knife was designed for, and issued to, covert Studies and Observations Group personnel during the Vietnam War. It was unmarked and supposedly untraceable to country of origin or manufacture in order to maintain plausible deniability of covert operators in the event of their death or capture.
Design
The SOG Kni... |
https://en.wikipedia.org/wiki/Construction%20set | A construction set is a set of standardized pieces that allow for the construction of a variety of different models. Construction sets are generally marketed as toys. One very popular brand of construction set toys is Lego.
Toys
Psychological benefits
Construction toy play is beneficial for building social skills and... |
https://en.wikipedia.org/wiki/Gell-Mann%E2%80%93Nishijima%20formula | The Gell-Mann–Nishijima formula (sometimes known as the NNG formula) relates the baryon number B, the strangeness S, the isospin I3 of quarks and hadrons to the electric charge Q. It was originally given by Kazuhiko Nishijima and Tadao Nakano in 1953, and led to the proposal of strangeness as a concept, which Nishijima... |
https://en.wikipedia.org/wiki/Invariants%20of%20tensors | In mathematics, in the fields of multilinear algebra and representation theory, the principal invariants of the second rank tensor are the coefficients of the characteristic polynomial
,
where is the identity operator and represent the polynomial's eigenvalues.
More broadly, any scalar-valued function is an inva... |
https://en.wikipedia.org/wiki/Spatial%20ecology | Spatial ecology studies the ultimate distributional or spatial unit occupied by a species. In a particular habitat shared by several species, each of the species is usually confined to its own microhabitat or spatial niche because two species in the same general territory cannot usually occupy the same ecological nich... |
https://en.wikipedia.org/wiki/Monatomic%20ion | A monatomic ion (also called simple ion) is an ion consisting of exactly one atom. If, instead of being monatomic, an ion contains more than one atom, even if these are of the same element, it is called a polyatomic ion. For example, calcium carbonate consists of the monatomic cation Ca2+ and the polyatomic anion ; bot... |
https://en.wikipedia.org/wiki/Mathematical%20universe%20hypothesis | In physics and cosmology, the mathematical universe hypothesis (MUH), also known as the ultimate ensemble theory, is a speculative "theory of everything" (TOE) proposed by cosmologist Max Tegmark.
Description
Tegmark's MUH is the hypothesis that our external physical reality is a mathematical structure. That is, the ... |
https://en.wikipedia.org/wiki/Hereditarianism | Hereditarianism is the doctrine or school of thought that heredity plays a significant role in determining human nature and character traits, such as intelligence and personality. Hereditarians believe in the power of genetics to explain human character traits and solve human social and political problems. Hereditarian... |
https://en.wikipedia.org/wiki/Uniformization%20%28set%20theory%29 | In set theory, a branch of mathematics, the axiom of uniformization is a weak form of the axiom of choice. It states that if is a subset of , where and are Polish spaces, then there is a subset of that is a partial function from to , and whose domain (the set of all such that exists) equals
Such a function is... |
https://en.wikipedia.org/wiki/Sachindra%20Prasad%20Bose | Sachindra Prasad Bose () (died February 1941) was an Indian independence movement activist and follower of Sir Surendranath Banerjee. He was the son-in-law of the moderate Brahmo leader, Krishna Kumar Mitra.
On 4 November 1905, when he was a fourth year student of Ripon College, Calcutta, he took initiative to form t... |
https://en.wikipedia.org/wiki/The%20Hobbit%20%281982%20video%20game%29 | The Hobbit is an illustrated text adventure computer game released in 1982 for the ZX Spectrum home computer and based on the 1937 book The Hobbit, by J. R. R. Tolkien. It was developed at Beam Software by Philip Mitchell and Veronika Megler and published by Melbourne House. It was later converted to most home computer... |
https://en.wikipedia.org/wiki/Time%20delay%20and%20integration | A time delay and integration or time delay integration (TDI) charge-coupled device (CCD) is an image sensor for capturing images of moving objects at low light levels. While using similar underlying CCD technology, in operation it contrasts with staring arrays and line scanned arrays. It works by synchronized mechanica... |
https://en.wikipedia.org/wiki/Doctor%20Atomic | Doctor Atomic is an opera by the contemporary American composer John Adams, with libretto by Peter Sellars. It premiered at the San Francisco Opera on October 1, 2005. The work focuses on how leading figures at Los Alamos dealt with the great stress and anxiety of preparing for the test of the first atomic bomb (the "T... |
https://en.wikipedia.org/wiki/Convective%20inhibition | Convective inhibition (CIN or CINH) is a numerical measure in meteorology that indicates the amount of energy that will prevent an air parcel from rising from the surface to the level of free convection.
CIN is the amount of energy required to overcome the negatively buoyant energy the environment exerts on an air par... |
https://en.wikipedia.org/wiki/MUSASINO-1 | The MUSASINO-1 was one of the earliest electronic digital computers built in Japan. Construction started at the Electrical Communication Laboratories of NTT at Musashino, Tokyo in 1952 and was completed in July 1957. The computer was used until July 1962. Saburo Muroga, a University of Illinois visiting scholar and mem... |
https://en.wikipedia.org/wiki/Sergei%20Winogradsky | Sergei Nikolaievich Winogradsky (or Vinohradsky; published under the name of Sergius Winogradsky or M. S. Winogradsky from Ukrainian: Сергій Миколайович Виноградський Russian: Сергей Николаевич Виноградский 1 September 1856 – 25 February 1953) was a Ukrainian and Russian microbiologist, ecologist and soil scientist wh... |
https://en.wikipedia.org/wiki/Quantifier%20elimination | Quantifier elimination is a concept of simplification used in mathematical logic, model theory, and theoretical computer science. Informally, a quantified statement " such that " can be viewed as a question "When is there an such that ?", and the statement without quantifiers can be viewed as the answer to that questi... |
https://en.wikipedia.org/wiki/Counting%20quantification | A counting quantifier is a mathematical term for a quantifier of the form "there exists at least k elements that satisfy property X".
In first-order logic with equality, counting quantifiers can be defined in terms of ordinary quantifiers, so in this context they are a notational shorthand.
However, they are interestin... |
https://en.wikipedia.org/wiki/PGPfone | PGPfone was a secure voice telephony system developed by Philip Zimmermann in 1995. The PGPfone protocol had little in common with Zimmermann's popular PGP email encryption package, except for the use of the name. It used ephemeral Diffie-Hellman protocol to establish a session key, which was then used to encrypt the... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.