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https://en.wikipedia.org/wiki/Idempotent%20%28ring%20theory%29 | In ring theory, a branch of mathematics, an idempotent element or simply idempotent of a ring is an element such that . That is, the element is idempotent under the ring's multiplication. Inductively then, one can also conclude that for any positive integer . For example, an idempotent element of a matrix ring is pre... |
https://en.wikipedia.org/wiki/Network%20Control%20Protocol%20%28ARPANET%29 | The Network Control Protocol (NCP) was a communication protocol for a computer network in the 1970s and early 1980s. It provided the transport layer of the protocol stack running on host computers of the ARPANET, the predecessor to the modern Internet.
NCP preceded the Transmission Control Protocol (TCP) as a transpor... |
https://en.wikipedia.org/wiki/Active%20noise%20control | Active noise control (ANC), also known as noise cancellation (NC), or active noise reduction (ANR), is a method for reducing unwanted sound by the addition of a second sound specifically designed to cancel the first. The concept was first developed in the late 1930s; later developmental work that began in the 1950s eve... |
https://en.wikipedia.org/wiki/Bochs | Bochs (pronounced "box") is a portable x86-32 and x86-64 IBM PC compatible emulator and debugger mostly written in C++ and distributed as free software under the GNU Lesser General Public License. It supports emulation of the processor(s) (including protected mode), memory, disks, display, Ethernet, BIOS and common har... |
https://en.wikipedia.org/wiki/Robinson%20projection | The Robinson projection is a map projection of a world map that shows the entire world at once. It was specifically created in an attempt to find a good compromise to the problem of readily showing the whole globe as a flat image.
The Robinson projection was devised by Arthur H. Robinson in 1963 in response to an appe... |
https://en.wikipedia.org/wiki/22%20%28number%29 | 22 (twenty-two) is the natural number following 21 and preceding 23.
In mathematics
22 is a palindromic number. It is the second Smith number, the second Erdős–Woods number, and the fourth large Schröder number. It is also a Perrin number, from a sum of 10 and 12.
22 is the sixth distinct semiprime, and the fout... |
https://en.wikipedia.org/wiki/24%20%28number%29 | 24 (twenty-four) is the natural number following 23 and preceding 25.
In mathematics
24 is an even composite number, with 2 and 3 as its distinct prime factors. It is the first number of the form 2q, where q is an odd prime. It is the smallest number with at least eight positive divisors: 1, 2, 3, 4, 6, 8, 12, and 24;... |
https://en.wikipedia.org/wiki/23%20%28number%29 | 23 (twenty-three) is the natural number following 22 and preceding 24.
In mathematics
Twenty-three is the ninth prime number, the smallest odd prime that is not a twin prime. It is, however, a cousin prime with 19, and a sexy prime with 17 and 29; while also being the largest member of the first prime sextuplet (7, 1... |
https://en.wikipedia.org/wiki/25%20%28number%29 | 25 (twenty-five) is the natural number following 24 and preceding 26.
In mathematics
It is a square number, being 52 = 5 × 5, and hence the third non-unitary square prime of the form p2.
It is one of two two-digit numbers whose square and higher powers of the number also ends in the same last two digits, e.g., 252 =... |
https://en.wikipedia.org/wiki/26%20%28number%29 | 26 (twenty-six) is the natural number following 25 and preceding 27.
In mathematics
26 is the seventh discrete semiprime () and the fifth with 2 as the lowest non-unitary factor thus of the form (2.q), where q is a higher prime.
with an aliquot sum of 16, within an aliquot sequence of five composite numbers (26,16... |
https://en.wikipedia.org/wiki/29%20%28number%29 | 29 (twenty-nine) is the natural number following 28 and preceding 30.
Mathematics
29 is the tenth prime number, and the fifth primorial prime.
29 forms a twin prime pair with thirty-one, which is also a primorial prime. Twenty-nine is also the sixth Sophie Germain prime.
29 is the sum of three consecutive squares, ... |
https://en.wikipedia.org/wiki/28%20%28number%29 | 28 (twenty-eight) is the natural number following 27 and preceding 29.
In mathematics
It is a composite number; a square-prime, of the form (p2,q) where q is a higher prime. It is the third of this form and of the specific form (22.q), with proper divisors being 1, 2, 4, 7, and 14.
Twenty-eight is the second perfect... |
https://en.wikipedia.org/wiki/Separable%20polynomial | In mathematics, a polynomial P(X) over a given field K is separable if its roots are distinct in an algebraic closure of K, that is, the number of distinct roots is equal to the degree of the polynomial.
This concept is closely related to square-free polynomial. If K is a perfect field then the two concepts coincide. ... |
https://en.wikipedia.org/wiki/Antoni%20Zygmund | Antoni Zygmund (December 25, 1900 – May 30, 1992) was a Polish mathematician. He worked mostly in the area of mathematical analysis, including especially harmonic analysis, and he is considered one of the greatest analysts of the 20th century. Zygmund was responsible for creating the Chicago school of mathematical anal... |
https://en.wikipedia.org/wiki/Optimal%20control | Optimal control theory is a branch of control theory that deals with finding a control for a dynamical system over a period of time such that an objective function is optimized. It has numerous applications in science, engineering and operations research. For example, the dynamical system might be a spacecraft with con... |
https://en.wikipedia.org/wiki/Indium%20tin%20oxide | Indium tin oxide (ITO) is a ternary composition of indium, tin and oxygen in varying proportions. Depending on the oxygen content, it can be described as either a ceramic or an alloy. Indium tin oxide is typically encountered as an oxygen-saturated composition with a formulation of 74% In, 8% Sn, and 18% O by weight. O... |
https://en.wikipedia.org/wiki/Ludolph%20van%20Ceulen | Ludolph van Ceulen (, ; 28 January 1540 – 31 December 1610) was a German-Dutch mathematician from Hildesheim. He emigrated to the Netherlands.
Biography
Van Ceulen moved to Delft most likely in 1576 to teach fencing and mathematics and in 1594 opened a fencing school in Leiden. In 1600 he was appointed the first profe... |
https://en.wikipedia.org/wiki/Stanis%C5%82aw%20Saks | Stanisław Saks (30 December 1897 – 23 November 1942) was a Polish mathematician and university tutor, a member of the Lwów School of Mathematics, known primarily for his membership in the Scottish Café circle, an extensive monograph on the theory of integrals, his works on measure theory and the Vitali–Hahn–Saks theore... |
https://en.wikipedia.org/wiki/Negative%20temperature | Certain systems can achieve negative thermodynamic temperature; that is, their temperature can be expressed as a negative quantity on the Kelvin or Rankine scales. This should be distinguished from temperatures expressed as negative numbers on non-thermodynamic Celsius or Fahrenheit scales, which are nevertheless highe... |
https://en.wikipedia.org/wiki/Diacetyl | Diacetyl ( ; IUPAC systematic name: butanedione or butane-2,3-dione) is an organic compound with the chemical formula (CH3CO)2. It is a yellow liquid with an intensely buttery flavor. It is a vicinal diketone (two C=O groups, side-by-side). Diacetyl occurs naturally in alcoholic beverages and is added as a flavoring to... |
https://en.wikipedia.org/wiki/NetWare | NetWare is a discontinued computer network operating system developed by Novell, Inc. It initially used cooperative multitasking to run various services on a personal computer, using the IPX network protocol.
The original NetWare product in 1983 supported clients running both CP/M and MS-DOS, ran over a proprietary st... |
https://en.wikipedia.org/wiki/38%20%28number%29 | 38 (thirty-eight) is the natural number following 37 and preceding 39.
In mathematics
specifically, the 11th discrete Semiprime, it being the 7th of the form (2.q).
the first member of the third cluster of two discrete semiprimes 38, 39 the next such cluster is 57, 58.
with an aliquot sum of 22 in an aliquot seque... |
https://en.wikipedia.org/wiki/Substitution%20matrix | In bioinformatics and evolutionary biology, a substitution matrix describes the frequency at which a character in a nucleotide sequence or a protein sequence changes to other character states over evolutionary time. The information is often in the form of log odds of finding two specific character states aligned and d... |
https://en.wikipedia.org/wiki/Homogeneous%20space | In mathematics, a homogeneous space is, very informally, a space that looks the same everywhere, as you move through it, with movement given by the action of a group. Homogeneous spaces occur in the theories of Lie groups, algebraic groups and topological groups. More precisely, a homogeneous space for a group G is a n... |
https://en.wikipedia.org/wiki/Lyapunov%20stability | Various types of stability may be discussed for the solutions of differential equations or difference equations describing dynamical systems. The most important type is that concerning the stability of solutions near to a point of equilibrium. This may be discussed by the theory of Aleksandr Lyapunov. In simple terms, ... |
https://en.wikipedia.org/wiki/Combinatorial%20topology | In mathematics, combinatorial topology was an older name for algebraic topology, dating from the time when topological invariants of spaces (for example the Betti numbers) were regarded as derived from combinatorial decompositions of spaces, such as decomposition into simplicial complexes. After the proof of the simpli... |
https://en.wikipedia.org/wiki/Principal%20homogeneous%20space | In mathematics, a principal homogeneous space, or torsor, for a group G is a homogeneous space X for G in which the stabilizer subgroup of every point is trivial. Equivalently, a principal homogeneous space for a group G is a non-empty set X on which G acts freely and transitively (meaning that, for any x, y in X, ther... |
https://en.wikipedia.org/wiki/Serre%E2%80%93Swan%20theorem | In the mathematical fields of topology and K-theory, the Serre–Swan theorem, also called Swan's theorem, relates the geometric notion of vector bundles to the algebraic concept of projective modules and gives rise to a common intuition throughout mathematics: "projective modules over commutative rings are like vector b... |
https://en.wikipedia.org/wiki/Universal%20enveloping%20algebra | In mathematics, the universal enveloping algebra of a Lie algebra is the unital associative algebra whose representations correspond precisely to the representations of that Lie algebra.
Universal enveloping algebras are used in the representation theory of Lie groups and Lie algebras. For example, Verma modules can b... |
https://en.wikipedia.org/wiki/Tensor%20algebra | In mathematics, the tensor algebra of a vector space V, denoted T(V) or T(V), is the algebra of tensors on V (of any rank) with multiplication being the tensor product. It is the free algebra on V, in the sense of being left adjoint to the forgetful functor from algebras to vector spaces: it is the "most general" algeb... |
https://en.wikipedia.org/wiki/X.400 | X.400 is a suite of ITU-T recommendations that define the ITU-T Message Handling System (MHS).
At one time, the designers of X.400 were expecting it to be the predominant form of email, but this role has been taken by the SMTP-based Internet e-mail. Despite this, it has been widely used within organizations and was a ... |
https://en.wikipedia.org/wiki/Stereopticon | A stereopticon is a slide projector or relatively powerful "magic lantern", which has two lenses, usually one above the other, and has mainly been used to project photographic images. These devices date back to the mid 19th century, and were a popular form of entertainment and education before the advent of moving pict... |
https://en.wikipedia.org/wiki/Zymology | Zymology, also known as zymurgy, is an applied science that studies the biochemical process of fermentation and its practical uses. Common topics include the selection of fermenting yeast and bacteria species and their use in brewing, wine making, fermenting milk, and the making of other fermented foods.
Fermentation ... |
https://en.wikipedia.org/wiki/One-way%20function | In computer science, a one-way function is a function that is easy to compute on every input, but hard to invert given the image of a random input. Here, "easy" and "hard" are to be understood in the sense of computational complexity theory, specifically the theory of polynomial time problems. Not being one-to-one is ... |
https://en.wikipedia.org/wiki/Metacentric%20height | The metacentric height (GM) is a measurement of the initial static stability of a floating body. It is calculated as the distance between the centre of gravity of a ship and its metacentre. A larger metacentric height implies greater initial stability against overturning. The metacentric height also influences the natu... |
https://en.wikipedia.org/wiki/RobotWar | RobotWar is a programming game written by Silas Warner. This game, along with the companion program RobotWrite, was originally developed in the TUTOR programming language on the PLATO system in the 1970s. Later the game was commercialized and adapted for the Apple II series of computers and published by Muse Software ... |
https://en.wikipedia.org/wiki/Functional%20equation | In mathematics, a functional equation
is, in the broadest meaning, an equation in which one or several functions appear as unknowns. So, differential equations and integral equations are functional equations. However, a more restricted meaning is often used, where a functional equation is an equation that relates seve... |
https://en.wikipedia.org/wiki/Ring%20of%20symmetric%20functions | In algebra and in particular in algebraic combinatorics, the ring of symmetric functions is a specific limit of the rings of symmetric polynomials in n indeterminates, as n goes to infinity. This ring serves as universal structure in which relations between symmetric polynomials can be expressed in a way independent of... |
https://en.wikipedia.org/wiki/Projective%20module | In mathematics, particularly in algebra, the class of projective modules enlarges the class of free modules (that is, modules with basis vectors) over a ring, by keeping some of the main properties of free modules. Various equivalent characterizations of these modules appear below.
Every free module is a projective mo... |
https://en.wikipedia.org/wiki/OpenMSX | openMSX is a free software emulator for the MSX architecture. It is available for multiple platforms, including Microsoft Windows and POSIX systems such as Linux
For copyright reasons, the emulator cannot be distributed with original MSX-BIOS ROM images. Instead, openMSX includes C-BIOS, a minimal implementation of th... |
https://en.wikipedia.org/wiki/Israel%20Gelfand | Israel Moiseevich Gelfand, also written Israïl Moyseyovich Gel'fand, or Izrail M. Gelfand (, , ; – 5 October 2009) was a prominent Soviet-American mathematician. He made significant contributions to many branches of mathematics, including group theory, representation theory and functional analysis. The recipient of ma... |
https://en.wikipedia.org/wiki/Conformal%20field%20theory | A conformal field theory (CFT) is a quantum field theory that is invariant under conformal transformations. In two dimensions, there is an infinite-dimensional algebra of local conformal transformations, and conformal field theories can sometimes be exactly solved or classified.
Conformal field theory has important ap... |
https://en.wikipedia.org/wiki/Quotient%20module | In algebra, given a module and a submodule, one can construct their quotient module. This construction, described below, is very similar to that of a quotient vector space. It differs from analogous quotient constructions of rings and groups by the fact that in these cases, the subspace that is used for defining the q... |
https://en.wikipedia.org/wiki/August-Wilhelm%20Scheer | August-Wilhelm Scheer (born July 27, 1941) is a German Professor of business administration and business information at Saarland University, and founder and director of IDS Scheer AG, a major IT service and software company. He is known for the development of the Architecture of Integrated Information Systems (ARIS) co... |
https://en.wikipedia.org/wiki/Jet%20Set%20Willy | Jet Set Willy is a platform video game originally written by Matthew Smith for the ZX Spectrum home computer. It was published in 1984 by Software Projects and ported to most home computers of the time.
The game is a sequel to Manic Miner published in 1983, and the second game in the Miner Willy series. It spent over... |
https://en.wikipedia.org/wiki/Encephalitis%20lethargica | Encephalitis lethargica is an atypical form of encephalitis. Also known as "sleeping sickness" or "sleepy sickness" (distinct from tsetse fly–transmitted sleeping sickness), it was first described in 1917 by neurologist Constantin von Economo and pathologist Jean-René Cruchet. The disease attacks the brain, leaving som... |
https://en.wikipedia.org/wiki/Finite%20intersection%20property | In general topology, a branch of mathematics, a non-empty family A of subsets of a set is said to have the finite intersection property (FIP) if the intersection over any finite subcollection of is non-empty. It has the strong finite intersection property (SFIP) if the intersection over any finite subcollection of i... |
https://en.wikipedia.org/wiki/Online%20skill-based%20game | Online skill-based games are online games in which the outcome of the game is determined by the player's physical skill (like fast reaction or dexterity) or mental skill (logic abilities, strategic thinking, trivia knowledge). As in off-line games of skill, the definition has legal meaning, as playing games of chance f... |
https://en.wikipedia.org/wiki/Systems%20programming | Systems programming, or system programming, is the activity of programming computer system software. The primary distinguishing characteristic of systems programming when compared to application programming is that application programming aims to produce software which provides services to the user directly (e.g. word ... |
https://en.wikipedia.org/wiki/ARMM%20%28Usenet%29 | Automated Retroactive Minimal Moderation (ARMM) was a program developed by Richard Depew in 1993 to aid in the control of Usenet abuse. Concerned by abusive posts emanating from certain anonymous-posting sites, Depew developed ARMM to allow news administrators to automatically issue cancel messages for such posts. This... |
https://en.wikipedia.org/wiki/Ford%20circle | In mathematics, a Ford circle is a circle in the Euclidean plane, in a family of circles that are all tangent to the -axis at rational points. For each rational number , expressed in lowest terms, there is a Ford circle whose center is at the point and whose radius is . It is tangent to the -axis at its bottom point, ... |
https://en.wikipedia.org/wiki/Index%20of%20biochemistry%20articles | Biochemistry is the study of the chemical processes in living organisms. It deals with the structure and function of cellular components such as proteins, carbohydrates, lipids, nucleic acids and other biomolecules.
Articles related to biochemistry include:
0–9
2-amino-5-phosphonovalerate - 3' end - 5' end
A
ABC... |
https://en.wikipedia.org/wiki/Missing%20square%20puzzle | The missing square puzzle is an optical illusion used in mathematics classes to help students reason about geometrical figures; or rather to teach them not to reason using figures, but to use only textual descriptions and the axioms of geometry. It depicts two arrangements made of similar shapes in slightly different c... |
https://en.wikipedia.org/wiki/Timothy%20Gowers | Sir William Timothy Gowers, (; born 20 November 1963) is a British mathematician. He is Professeur titulaire of the Combinatorics chair at the Collège de France, and director of research at the University of Cambridge and Fellow of Trinity College, Cambridge. In 1998, he received the Fields Medal for research connecti... |
https://en.wikipedia.org/wiki/DI%20unit | A DI unit (direct input or direct inject) is an electronic device typically used in recording studios and in sound reinforcement systems to connect a high output impedance unbalanced output signal to a low-impedance, microphone level, balanced input, usually via an XLR connector and XLR cable. DIs are frequently used t... |
https://en.wikipedia.org/wiki/Banach%E2%80%93Mazur%20game | In general topology, set theory and game theory, a Banach–Mazur game is a topological game played by two players, trying to pin down elements in a set (space). The concept of a Banach–Mazur game is closely related to the concept of Baire spaces. This game was the first infinite positional game of perfect information ... |
https://en.wikipedia.org/wiki/Distribution%20function%20%28physics%29 | In molecular kinetic theory in physics, a system's distribution function is a function of seven variables, , which gives the number of particles per unit volume in single-particle phase space. It is the number of particles per unit volume having approximately the velocity near the position and time . The usual normal... |
https://en.wikipedia.org/wiki/Point-to-point%20%28telecommunications%29 | In telecommunications, a point-to-point connection refers to a communications connection between two communication endpoints or nodes. An example is a telephone call, in which one telephone is connected with one other, and what is said by one caller can only be heard by the other. This is contrasted with a point-to-m... |
https://en.wikipedia.org/wiki/Point-to-multipoint%20communication | In telecommunications, point-to-multipoint communication (P2MP, PTMP or PMP) is communication which is accomplished via a distinct type of one-to-many connection, providing multiple paths from a single location to multiple locations.
Point-to-multipoint telecommunications is typically used in wireless Internet and IP ... |
https://en.wikipedia.org/wiki/Germline | In biology and genetics, the germline is the population of a multicellular organism's cells that pass on their genetic material to the progeny (offspring). In other words, they are the cells that form the egg, sperm and the fertilised egg. They are usually differentiated to perform this function and segregated in a spe... |
https://en.wikipedia.org/wiki/Rank%20%28computer%20programming%29 | In computer programming, rank with no further specifications is usually a synonym for (or refers to) "number of dimensions"; thus, a two-dimensional array has rank two, a three-dimensional array has rank three and so on.
Strictly, no formal definition can be provided which applies to every programming language, since e... |
https://en.wikipedia.org/wiki/Chikungunya | Chikungunya is an infection caused by the Chikungunya virus (CHIKV). Symptoms include fever and joint pains. These typically occur two to twelve days after exposure. Other symptoms may include headache, muscle pain, joint swelling, and a rash. Symptoms usually improve within a week; however, occasionally the joint pain... |
https://en.wikipedia.org/wiki/Pontryagin%20duality | In mathematics, Pontryagin duality is a duality between locally compact abelian groups that allows generalizing Fourier transform to all such groups, which include the circle group (the multiplicative group of complex numbers of modulus one), the finite abelian groups (with the discrete topology), and the additive grou... |
https://en.wikipedia.org/wiki/Typed%20lambda%20calculus | A typed lambda calculus is a typed formalism that uses the lambda-symbol () to denote anonymous function abstraction. In this context, types are usually objects of a syntactic nature that are assigned to lambda terms; the exact nature of a type depends on the calculus considered (see kinds below). From a certain point ... |
https://en.wikipedia.org/wiki/Trojan%20Room%20coffee%20pot | The Trojan Room coffee pot was a coffee machine located in the Computer Laboratory of the University of Cambridge, England. Created in 1991 by Quentin Stafford-Fraser and Paul Jardetzky, it was migrated from their laboratory network to the web in 1993, becoming the world's first webcam.
To save people working in the b... |
https://en.wikipedia.org/wiki/Brickwork | Brickwork is masonry produced by a bricklayer, using bricks and mortar. Typically, rows of bricks called courses are laid on top of one another to build up a structure such as a brick wall.
Bricks may be differentiated from blocks by size. For example, in the UK a brick is defined as a unit having dimensions less than... |
https://en.wikipedia.org/wiki/Active%20and%20passive%20transformation | Geometric transformations can be distinguished into two types: active or alibi transformations which change the physical position of a set of points relative to a fixed frame of reference or coordinate system (alibi meaning "being somewhere else at the same time"); and passive or alias transformations which leave point... |
https://en.wikipedia.org/wiki/Mathematical%20puzzle | Mathematical puzzles make up an integral part of recreational mathematics. They have specific rules, but they do not usually involve competition between two or more players. Instead, to solve such a puzzle, the solver must find a solution that satisfies the given conditions. Mathematical puzzles require mathematics to ... |
https://en.wikipedia.org/wiki/Biomolecule | A biomolecule or biological molecule is a loosely used term for molecules present in organisms that are essential to one or more typically biological processes, such as cell division, morphogenesis, or development. Biomolecules include the primary metabolites which are large macromolecules (or polyelectrolytes) such as... |
https://en.wikipedia.org/wiki/Applied%20probability | Applied probability is the application of probability theory to statistical problems and other scientific and engineering domains.
Scope
Much research involving probability is done under the auspices of applied probability. However, while such research is motivated (to some degree) by applied problems, it is usually t... |
https://en.wikipedia.org/wiki/Dragon%20curve | A dragon curve is any member of a family of self-similar fractal curves, which can be approximated by recursive methods such as Lindenmayer systems. The dragon curve is probably most commonly thought of as the shape that is generated from repeatedly folding a strip of paper in half, although there are other curves that... |
https://en.wikipedia.org/wiki/Breeding%20back | Breeding back is a form of artificial selection by the deliberate selective breeding of domestic (but not exclusively) animals, in an attempt to achieve an animal breed with a phenotype that resembles a wild type ancestor, usually one that has gone extinct. Breeding back is not to be confused with dedomestication.
It ... |
https://en.wikipedia.org/wiki/Plus%E2%80%93minus%20sign | The plus–minus sign, , is a mathematical symbol with multiple meanings:
In mathematics, it generally indicates a choice of exactly two possible values, one of which is obtained through addition and the other through subtraction.
In experimental sciences, the sign commonly indicates the confidence interval or uncertaint... |
https://en.wikipedia.org/wiki/Open%20Inventor | Open Inventor, originally IRIS Inventor, is a C++ object-oriented retained mode 3D graphics toolkit designed by SGI to provide a higher layer of programming for OpenGL. Its main goals are better programmer convenience and efficiency. Open Inventor exists as both proprietary software and free and open-source software, s... |
https://en.wikipedia.org/wiki/Prey%20%28novel%29 | Prey is the thirteenth novel by Michael Crichton under his own name and the twenty-third overall. It was first published in November 2002, making it his first novel of the twenty-first century. An excerpt was first published in the January–February 2003 issue of Seed magazine. Prey brings together themes from two earli... |
https://en.wikipedia.org/wiki/Antipodal%20point | In mathematics, two points of a sphere (or n-sphere, including a circle) are called antipodal or diametrically opposite if they are the intersections of the sphere with a diameter, a straight line passing through its center.
Given any point on a sphere, its antipodal point is the unique point at greatest distance, whe... |
https://en.wikipedia.org/wiki/Section%20%28fiber%20bundle%29 | In the mathematical field of topology, a section (or cross section) of a fiber bundle is a continuous right inverse of the projection function . In other words, if is a fiber bundle over a base space, :
then a section of that fiber bundle is a continuous map,
such that
for all .
A section is an abstract characte... |
https://en.wikipedia.org/wiki/Intra-species%20recognition | Intra-species recognition is the recognition by a member of a species of a conspecific (another member of the same species). In many species, such recognition is necessary for procreation.
Different species may employ different methods, but all of them are based on one or more senses (after all, this is how the organ... |
https://en.wikipedia.org/wiki/Group%20coded%20recording | In computer science, group coded recording or group code recording (GCR) refers to several distinct but related encoding methods for representing data on magnetic media. The first, used in bpi magnetic tape since 1973, is an error-correcting code combined with a run-length limited (RLL) encoding scheme, belonging into... |
https://en.wikipedia.org/wiki/List%20of%20biomolecules | This is a list of articles that describe particular biomolecules or types of biomolecules.
A
For substances with an A- or α- prefix such as
α-amylase, please see the parent page (in this case Amylase).
A23187 (Calcimycin, Calcium Ionophore)
Abamectine
Abietic acid
Acetic acid
Acetylcholine
Actin
Actinomycin... |
https://en.wikipedia.org/wiki/Kepler%20conjecture | The Kepler conjecture, named after the 17th-century mathematician and astronomer Johannes Kepler, is a mathematical theorem about sphere packing in three-dimensional Euclidean space. It states that no arrangement of equally sized spheres filling space has a greater average density than that of the cubic close packing (... |
https://en.wikipedia.org/wiki/Alfred%20Vail | Alfred Lewis Vail (September 25, 1807 – January 18, 1859) was an American machinist and inventor. Along with Samuel Morse, Vail was central in developing and commercializing American telegraphy between 1837 and 1844.
Vail and Morse were the first two telegraph operators on Morse's first experimental line between Washi... |
https://en.wikipedia.org/wiki/Sphere%20packing | In geometry, a sphere packing is an arrangement of non-overlapping spheres within a containing space. The spheres considered are usually all of identical size, and the space is usually three-dimensional Euclidean space. However, sphere packing problems can be generalised to consider unequal spheres, spaces of other dim... |
https://en.wikipedia.org/wiki/Moment%20%28mathematics%29 | In mathematics, the moments of a function are certain quantitative measures related to the shape of the function's graph. If the function represents mass density, then the zeroth moment is the total mass, the first moment (normalized by total mass) is the center of mass, and the second moment is the moment of inertia. ... |
https://en.wikipedia.org/wiki/Leafcutter%20ant | Leafcutter ants, a non-generic name, are any of 47 species of leaf-chewing ants belonging to the two genera Atta and Acromyrmex.
These species of tropical, fungus-growing ants are all endemic to South and Central America, Mexico, and parts of the southern United States. Leafcutter ants can carry twenty times their bod... |
https://en.wikipedia.org/wiki/27%20%28number%29 | 27 (twenty-seven; Roman numeral XXVII) is the natural number following 26 and preceding 28.
In mathematics
Twenty-seven is equal to the cube of three: ; also 23 (see tetration). It is divisible by the number of prime numbers below it (9).
In decimal, 27 is the first composite number not divisible by any of its digit... |
https://en.wikipedia.org/wiki/RAMDAC | A random-access memory digital-to-analog converter (RAMDAC) is a combination of three fast digital-to-analog converters (DACs) with a small static random-access memory (SRAM) used in computer graphics display controllers or video cards to store the color palette and to generate the analog signals (usually a voltage amp... |
https://en.wikipedia.org/wiki/Automatic%20vehicle%20location | Automatic vehicle location (AVL or ~locating; telelocating in EU) is a means for automatically determining and transmitting the geographic location of a vehicle. This vehicle location data, from one or more vehicles, may then be collected by a vehicle tracking system to manage an overview of vehicle travel. As of 2017... |
https://en.wikipedia.org/wiki/Glossary%20of%20tensor%20theory | This is a glossary of tensor theory. For expositions of tensor theory from different points of view, see:
Tensor
Tensor (intrinsic definition)
Application of tensor theory in engineering science
For some history of the abstract theory see also multilinear algebra.
Classical notation
Ricci calculus
The earliest f... |
https://en.wikipedia.org/wiki/Audio%20filter | An audio filter is a frequency dependent circuit, working in the audio frequency range, 0 Hz to 20 kHz. Audio filters can amplify (boost), pass or attenuate (cut) some frequency ranges. Many types of filters exist for different audio applications including hi-fi stereo systems, musical synthesizers, effects units, soun... |
https://en.wikipedia.org/wiki/Jedem%20das%20Seine | "" () is the literal German translation of the Latin phrase suum cuique, meaning "to each his own" or "to each what he deserves".
During World War II the phrase was cynically used by the Nazis as a motto displayed over the entrance of Buchenwald concentration camp. This has resulted in use of the phrase being consider... |
https://en.wikipedia.org/wiki/Frequency%20domain | In mathematics, physics, electronics, control systems engineering, and statistics, the frequency domain refers to the analysis of mathematical functions or signals with respect to frequency, rather than time. Put simply, a time-domain graph shows how a signal changes over time, whereas a frequency-domain graph shows h... |
https://en.wikipedia.org/wiki/Mascarene%20Islands | The Mascarene Islands (, ) or Mascarenes or Mascarenhas Archipelago is a group of islands in the Indian Ocean east of Madagascar consisting of the islands belonging to the Republic of Mauritius as well as the French department of La Réunion. Their name derives from the Portuguese navigator Pedro Mascarenhas, who first ... |
https://en.wikipedia.org/wiki/Variegation | Variegation is the appearance of differently coloured zones in the leaves and sometimes the stems and fruit of plants. Species with variegated individuals are sometimes found in the understory of tropical rainforests, and this habitat is the source of a number of variegated houseplants. Variegation is caused by mutatio... |
https://en.wikipedia.org/wiki/Separation%20barrier | A separation barrier or separation wall is a barrier, wall or fence, constructed to limit the movement of people across a certain line or border, or to separate peoples or cultures. A separation barrier that runs along an internationally recognized border is known as a border barrier.
David Henley opines in The Guardi... |
https://en.wikipedia.org/wiki/L%C3%A9vy%20flight | A Lévy flight is a random walk in which the step-lengths have a stable distribution, a probability distribution that is heavy-tailed. When defined as a walk in a space of dimension greater than one, the steps made are in isotropic random directions. Later researchers have extended the use of the term "Lévy flight" to a... |
https://en.wikipedia.org/wiki/Programming%20tool | A programming tool or software development tool is a computer program that software developers use to create, debug, maintain, or otherwise support other programs and applications. The term usually refers to relatively simple programs, that can be combined to accomplish a task, much as one might use multiple hands to f... |
https://en.wikipedia.org/wiki/Quantitative%20psychological%20research | Quantitative psychological research is psychological research that employs quantitative research methods.
Quantitative research falls under the category of empirical research.
See also
Statistics
Quantitative psychology
Quantitative research
References
Applied statistics
Experimental psychology
Quantitative resea... |
https://en.wikipedia.org/wiki/David%20Parnas | David Lorge Parnas (born February 10, 1941) is a Canadian early pioneer of software engineering, who developed the concept of information hiding in modular programming, which is an important element of object-oriented programming today. He is also noted for his advocacy of precise documentation.
Life
Parnas earned hi... |
https://en.wikipedia.org/wiki/Semiring | In abstract algebra, a semiring is an algebraic structure. It is a generalization of a ring, dropping the requirement that each element must have an additive inverse. At the same time, it is a generalization of bounded distributive lattices.
The smallest semiring that is not a ring is the two-element Boolean algebra, ... |
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