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https://en.wikipedia.org/wiki/Photon-induced%20electric%20field%20poling
In physics, photon-induced electric field poling is a phenomenon whereby a pattern of local electric field orientations can be encoded in a suitable ferroelectric material, such as perovskite. The resulting encoded material is conceptually similar to the pattern of magnetic field orientations within the magnetic domain...
https://en.wikipedia.org/wiki/Linear%20connection
In the mathematical field of differential geometry, the term linear connection can refer to either of the following overlapping concepts: a connection on a vector bundle, often viewed as a differential operator (a Koszul connection or covariant derivative); a principal connection on the frame bundle of a manifold or ...
https://en.wikipedia.org/wiki/Passive%20electronically%20scanned%20array
A passive electronically scanned array (PESA), also known as passive phased array, is an antenna in which the beam of radio waves can be electronically steered to point in different directions (that is, a phased array antenna), in which all the antenna elements are connected to a single transmitter (such as a magnetron...
https://en.wikipedia.org/wiki/Gerald%20Wingrove
Gerald Amery Wingrove (1934 - 2019) was a model engineer and author from the United Kingdom. He is best known as a modeller of cars. Career Wingrove left his job as a lathe operator to create models full-time in November 1967, and launched himself as a freelance model engineer, since which time he has hand crafted in...
https://en.wikipedia.org/wiki/National%20Numeracy%20Strategy
The National Numeracy Strategy arose out of the National Numeracy Project in 1996, led by a Numeracy Task Force in England. The strategy included an outline of expected teaching in mathematics for all pupils from Reception to Year 6. In 2003, the strategy, including the framework for teaching, was absorbed into the br...
https://en.wikipedia.org/wiki/French%20ship%20Pourquoi%20Pas%3F%20%282005%29
Pourquoi Pas ? () is a research vessel built in Saint-Nazaire, France by Alstom Marine for IFREMER and the French Navy. She is currently primarily used by SHOM (Service hydrographique et océanographique de la Marine). She was ordered in December 2002 and completed in July 2005. The 66 million euro cost was financed b...
https://en.wikipedia.org/wiki/Luteinizing%20hormone/choriogonadotropin%20receptor
The luteinizing hormone/choriogonadotropin receptor (LHCGR), also lutropin/choriogonadotropin receptor (LCGR) or luteinizing hormone receptor (LHR) is a transmembrane receptor found predominantly in the ovary and testis, but also many extragonadal organs such as the uterus and breasts. The receptor interacts with both...
https://en.wikipedia.org/wiki/Cue%20reactivity
Cue reactivity is a type of learned response which is observed in individuals with an addiction and involves significant physiological and subjective reactions to presentations of drug-related stimuli (i.e., drug cues). In investigations of these reactions in people with substance use disorders, changes in self-report...
https://en.wikipedia.org/wiki/Ryukyu%20kingfisher
The Ryukyu kingfisher (Todiramphus cinnamominus miyakoensis) is an enigmatic taxon of tree kingfisher. It is extinct and is only known from a single specimen. Its taxonomic status is doubtful; it is most likely a subspecies of the Guam kingfisher, which would make its scientific name Todiramphus cinnamominus miyakoensi...
https://en.wikipedia.org/wiki/Universal%20powerline%20bus
Universal Powerline Bus (UPB) is a proprietary software protocol developed by Powerline Control Systems for power-line communication between devices used for home automation. Household electrical wiring is used to send digital data between UPB devices via pulse-position modulation. Communication is peer to peer, with ...
https://en.wikipedia.org/wiki/AlphaStation
AlphaStation is the name given to a series of computer workstations, produced from 1994 onwards by Digital Equipment Corporation, and later by Compaq and HP. As the name suggests, the AlphaStations were based on the DEC Alpha 64-bit microprocessor. Supported operating systems for AlphaStations comprise Tru64 UNIX (form...
https://en.wikipedia.org/wiki/Attachment%20in%20children
Attachment in children is "a biological instinct in which proximity to an attachment figure is sought when the child senses or perceives threat or discomfort. Attachment behaviour anticipates a response by the attachment figure which will remove threat or discomfort". Attachment also describes the function of availabil...
https://en.wikipedia.org/wiki/AlphaServer
AlphaServer is a series of server computers, produced from 1994 onwards by Digital Equipment Corporation, and later by Compaq and HP. AlphaServers were based on the DEC Alpha 64-bit microprocessor. Supported operating systems for AlphaServers are Tru64 UNIX (formerly Digital UNIX), OpenVMS, MEDITECH MAGIC and Windows N...
https://en.wikipedia.org/wiki/Attachment%20in%20adults
In psychology, the theory of attachment can be applied to adult relationships including friendships, emotional affairs, adult romantic and carnal relationships, and, in some cases, relationships with inanimate objects ("transitional objects"). Attachment theory, initially studied in the 1960s and 1970s primarily in the...
https://en.wikipedia.org/wiki/Meuni%C3%A8re%20sauce
Meunière (, , ; ) is both a French sauce and a method of preparation, primarily for fish, consisting of brown butter, chopped parsley, and lemon. The name suggests a simple rustic nature, i.e. that to cook something was originally to cook it by first dredging it in flour. Preparation Meunière sauce is a variation on ...
https://en.wikipedia.org/wiki/DEC%203000%20AXP
DEC 3000 AXP was the name given to a series of computer workstations and servers, produced from 1992 to around 1995 by Digital Equipment Corporation. The DEC 3000 AXP series formed part of the first generation of computer systems based on the 64-bit Alpha AXP architecture. Supported operating systems for the DEC 3000 A...
https://en.wikipedia.org/wiki/Microbial%20genetics
Microbial genetics is a subject area within microbiology and genetic engineering. Microbial genetics studies microorganisms for different purposes. The microorganisms that are observed are bacteria, and archaea. Some fungi and protozoa are also subjects used to study in this field. The studies of microorganisms involve...
https://en.wikipedia.org/wiki/1%3A50%20scale
1:50 scale is a popular size for diecast models from European manufacturers such as Conrad, Tekno, NZG, WSI and LionToys. Typically they produce scale models of construction vehicles, tower cranes, trucks and buses. These are often the official models distributed by the manufacturers of the real vehicles as a promoti...
https://en.wikipedia.org/wiki/Food%20and%20Agriculture%20Organization%20Corporate%20Statistical%20Database
The Food and Agriculture Organization Corporate Statistical Database (FAOSTAT) website disseminates statistical data collected and maintained by the Food and Agriculture Organization (FAO). FAOSTAT data are provided as a time-series from 1961 in most domains for 245 countries in English, Spanish and French. About FAOS...
https://en.wikipedia.org/wiki/History%20of%20origami
The history of origami followed after the invention of paper and was a result of paper's use in society. In the detailed Japanese classification, origami is divided into stylized ceremonial origami (儀礼折り紙, girei origami) and recreational origami (遊戯折り紙, yūgi origami), and only recreational origami is generally recogniz...
https://en.wikipedia.org/wiki/Gimme%20Shelter
"Gimme Shelter" is a song by English rock band the Rolling Stones. It is the opening track on their 1969 album Let It Bleed. The song covers the brutal realities of war, including murder, rape and fear. It features prominent guest vocals by American singer Merry Clayton. American author, music journalist and cultural ...
https://en.wikipedia.org/wiki/Flag%20of%20Christmas%20Island
The flag of Christmas Island was unofficially adopted in 1986 after being chosen the winner in a competition for a flag for the territory. It was designed by Tony Couch of Sydney, Australia. The flag was made official in 2002 on Australia Day, when the administrator of the territory, Bill Taylor, presented the flag to...
https://en.wikipedia.org/wiki/NuFW
NuFW is a software package that extends Netfilter, the Linux kernel-internal packet filtering firewall module. NuFW adds authentication to filtering rules. NuFW is also provided as a hardware firewall, in the EdenWall firewalling appliance. NuFW has been restarted by the FFI and renamed into UFWI. Introduction NuFW ...
https://en.wikipedia.org/wiki/Radiation%20trapping
Radiation trapping, imprisonment of resonance radiation, radiative transfer of spectral lines, line transfer or radiation diffusion is a phenomenon in physics whereby radiation may be "trapped" in a system as it is emitted by one atom and absorbed by another. Classical description Classically, one can think of radiati...
https://en.wikipedia.org/wiki/Citrus%20australasica
Citrus australasica, the Australian finger lime or caviar lime, is a thorny understorey shrub or small tree of lowland subtropical rainforest and rainforest in the coastal border region of Queensland and New South Wales, Australia. It has edible fruits which are under development as a commercially sold crop. Descript...
https://en.wikipedia.org/wiki/Advanced%20silicon%20etching
Advanced silicon etching (ASE) is a deep reactive-ion etching (DRIE) technique to etch deep and high aspect ratio structures in silicon. ASE was created by Surface Technology Systems Plc (STS) in 1994 in the UK. STS has continued to develop this process with faster etch rates. STS developed and first implemented the sw...
https://en.wikipedia.org/wiki/Red%20Hand%20of%20Ulster
The Red Hand of Ulster () is a symbol used in heraldry to denote the Irish province of Ulster and the Northern Uí Néill in particular. It has also been used however by other Irish clans across the island, including the ruling families of western Connacht (i.e. the O'Flahertys and McHughs) and the chiefs of the Midland...
https://en.wikipedia.org/wiki/1%3A48%20scale
1:48 scale is a scale commonly used in diecast models, plastic models made from kits, and construction toys. It is especially popular with manufacturers of model aircraft and model trains, where it is known as "O scale". 1:48 is also a popular scale among Lego enthusiasts, since it is approximately the scale of the Leg...
https://en.wikipedia.org/wiki/Lebesgue%20differentiation%20theorem
In mathematics, the Lebesgue differentiation theorem is a theorem of real analysis, which states that for almost every point, the value of an integrable function is the limit of infinitesimal averages taken about the point. The theorem is named for Henri Lebesgue. Statement For a Lebesgue integrable real or complex-va...
https://en.wikipedia.org/wiki/1%3A64%20scale
1:64 scale is a traditional scale for models and miniatures, in which one unit (such as an inch or a centimeter) on the model represents 64 units on the actual object. It is also known as "three-sixteenths scale", since 3/16 of an inch represents one foot. A human is approximately tall in 1:64 scale. The scale origina...
https://en.wikipedia.org/wiki/Zsigmondy%27s%20theorem
In number theory, Zsigmondy's theorem, named after Karl Zsigmondy, states that if are coprime integers, then for any integer , there is a prime number p (called a primitive prime divisor) that divides and does not divide for any positive integer , with the following exceptions: , ; then which has no prime divisors...
https://en.wikipedia.org/wiki/Pepper%20Pad
The Pepper Pad was a family of Linux-based mobile computers with Internet capability and which doubled as a handheld game console. They also served as a portable multimedia device. The devices used Bluetooth and Wi-Fi technologies for Internet connection. Pepper Pads are now obsolete, unsupported and the parent compa...
https://en.wikipedia.org/wiki/Frequency%20divider
A frequency divider, also called a clock divider or scaler or prescaler, is a circuit that takes an input signal of a frequency, , and generates an output signal of a frequency: where is an integer. Phase-locked loop frequency synthesizers make use of frequency dividers to generate a frequency that is a multiple of ...
https://en.wikipedia.org/wiki/1%3A43%20scale
1:43 scale is a popular size of die-cast model cars in Europe, Asia and the US. It has its origins in the British / European O scale for model trains and the rise of certain accessories made for that scale which since have become popular in their own right. Models in this scale are 10–13 cm length (3.93–5.11 inches). ...
https://en.wikipedia.org/wiki/Cross-entropy%20method
The cross-entropy (CE) method is a Monte Carlo method for importance sampling and optimization. It is applicable to both combinatorial and continuous problems, with either a static or noisy objective. The method approximates the optimal importance sampling estimator by repeating two phases: Draw a sample from a proba...
https://en.wikipedia.org/wiki/Hitsuzend%C5%8D
is believed by Zen Buddhists to be a method of achieving samādhi (Japanese: 三昧 sanmai), which is a unification with the highest reality. Hitsuzendo refers specifically to a school of Japanese Zen calligraphy to which the rating system of modern calligraphy (well-proportioned and pleasing to the eye) is foreign. Instead...
https://en.wikipedia.org/wiki/Semi-deciduous
Semi-deciduous or semi-evergreen is a botanical term which refers to plants that lose their foliage for a very short period, when old leaves fall off and new foliage growth is starting. This phenomenon occurs in tropical and sub-tropical woody species, for example in Dipteryx odorata. Semi-deciduous or semi-evergreen m...
https://en.wikipedia.org/wiki/Carrier%20recovery
A carrier recovery system is a circuit used to estimate and compensate for frequency and phase differences between a received signal's carrier wave and the receiver's local oscillator for the purpose of coherent demodulation. In the transmitter of a communications carrier system, a carrier wave is modulated by a baseb...
https://en.wikipedia.org/wiki/Handheld%20television
A handheld television is a portable device for watching television that usually uses a TFT LCD or OLED and CRT color display. Many of these devices resemble handheld transistor radios. History In 1970, Panasonic released the first TV which was small enough to fit in a large pocket; called the Panasonic IC TV MODEL T...
https://en.wikipedia.org/wiki/OpenGrok
OpenGrok is a source code search and cross-reference engine. It helps programmers to search, cross-reference, and navigate source code trees to aid code comprehension. It can understand various program file formats and version control histories such as Monotone, SCCS, RCS, CVS, Subversion, Mercurial, Git, Clearcase, P...
https://en.wikipedia.org/wiki/Sony%20NEWS
The Sony NEWS ("Network Engineering Workstation", later "NetWorkStation") is a series of Unix workstations sold during the late 1980s and 1990s. The first NEWS machine was the NWS-800, which originally appeared in Japan in January 1987 and was conceived as a desktop replacement for the VAX series of minicomputers. His...
https://en.wikipedia.org/wiki/Gluster
Gluster Inc. (formerly known as Z RESEARCH) was a software company that provided an open source platform for scale-out public and private cloud storage. The company was privately funded and headquartered in Sunnyvale, California, with an engineering center in Bangalore, India. Gluster was funded by Nexus Venture Partne...
https://en.wikipedia.org/wiki/ILiad
The iLiad was an electronic handheld device, or e-Reader, which could be used for document reading and editing. Like the Barnes and Noble nook, Sony Reader or Amazon Kindle, the iLiad made use of an electronic paper display. In 2010, sales of the iLiad ended when its parent company, iRex Technologies, filed for bankru...
https://en.wikipedia.org/wiki/Display%20%28zoology%29
Display behaviour is a set of ritualized behaviours that enable an animal to communicate to other animals (typically of the same species) about specific stimuli. Such ritualized behaviours can be visual, but many animals depend on a mixture of visual, audio, tactical and chemical signals. Evolution has tailored these s...
https://en.wikipedia.org/wiki/Matthieu%20Brouard
Matthieu Brouard was a French theologian, mathematician, philosopher and historian, who was born in Saint-Denis near Paris in 1520, and died in Geneva on July 15, 1576. He is also known as Matthieu Brouart or Béroalde and (in Latin) as Mattheus Beroaldus. He taught Greek to the young Thomas Bodley and was the father ...
https://en.wikipedia.org/wiki/Tetrasodium%20EDTA
Tetrasodium EDTA is the salt resulting from the neutralization of ethylenediaminetetraacetic acid with four equivalents of sodium hydroxide (or an equivalent sodium base). It is a white solid that is highly soluble in water. Commercial samples are often hydrated, e.g. Na4EDTA.4H2O. The properties of solutions produc...
https://en.wikipedia.org/wiki/Importin
Importin is a type of karyopherin that transports protein molecules from the cell's cytoplasm to the nucleus. It does so by binding to specific recognition sequences, called nuclear localization sequences (NLS). Importin has two subunits, importin α and importin β. Members of the importin-β family can bind and transpo...
https://en.wikipedia.org/wiki/Lakes%20of%20Wada
In mathematics, the are three disjoint connected open sets of the plane or open unit square with the counterintuitive property that they all have the same boundary. In other words, for any point selected on the boundary of one of the lakes, the other two lakes' boundaries also contain that point. More than two sets w...
https://en.wikipedia.org/wiki/Zinc%20finger%20FYVE%20domain-containing%20protein%209
Zinc finger FYVE domain-containing protein 9 or SARA (SMAD anchor for receptor activation) is a protein that in humans is encoded by the ZFYVE9 gene. SARA contains a double zinc finger (FYVE domain). SARA is an anchoring protein involved in TGF beta signaling. It binds to the MH2 domain of the R-SMADs SMAD2 and SMAD3 ...
https://en.wikipedia.org/wiki/Google%20Pay%20Send
Google Pay Send, previously known as Google Wallet, was a peer-to-peer payments service developed by Google before its merger into Google Pay. It allowed people to send and receive money from a mobile device or desktop computer. In 2018, Android Pay and Google Wallet were unified into a single pay system called Google...
https://en.wikipedia.org/wiki/Hypromellose
Hypromellose (INN), short for hydroxypropyl methylcellulose (HPMC), is a semisynthetic, inert, viscoelastic polymer used in eye drops, as well as an excipient and controlled-delivery component in oral medicaments, found in a variety of commercial products. As a food additive, hypromellose is an emulsifier, thickening ...
https://en.wikipedia.org/wiki/Projective%20connection
In differential geometry, a projective connection is a type of Cartan connection on a differentiable manifold. The structure of a projective connection is modeled on the geometry of projective space, rather than the affine space corresponding to an affine connection. Much like affine connections, projective connectio...
https://en.wikipedia.org/wiki/Bond%20albedo
The Bond albedo (also called spheric albedo, planetary albedo, and bolometric albedo), named after the American astronomer George Phillips Bond (1825–1865), who originally proposed it, is the fraction of power in the total electromagnetic radiation incident on an astronomical body that is scattered back out into space....
https://en.wikipedia.org/wiki/Large%20Volume%20Detector
The Large Volume Detector (LVD) is a particle physics experiment situated in the Gran Sasso laboratory in Italy and is operated by the Italian Institute of Nuclear Physics (INFN). It has been in operation since June 1992, and is a member of the Supernova Early Warning System. Among other work, the detector should be a...
https://en.wikipedia.org/wiki/Rabi%20frequency
The Rabi frequency is the frequency at which the probability amplitudes of two atomic energy levels fluctuate in an oscillating electromagnetic field. It is proportional to the Transition Dipole Moment of the two levels and to the amplitude (not intensity) of the Electromagnetic field. Population transfer between the l...
https://en.wikipedia.org/wiki/Trace%20amine-associated%20receptor
Trace amine-associated receptors (TAARs), sometimes referred to as trace amine receptors (TAs or TARs), are a class of G protein-coupled receptors that were discovered in 2001. TAAR1, the first of six functional human TAARs, has gained considerable interest in academic and proprietary pharmaceutical research due to its...
https://en.wikipedia.org/wiki/Projected%20dynamical%20system
Projected dynamical systems is a mathematical theory investigating the behaviour of dynamical systems where solutions are restricted to a constraint set. The discipline shares connections to and applications with both the static world of optimization and equilibrium problems and the dynamical world of ordinary differen...
https://en.wikipedia.org/wiki/Download%20Cache
The Download Cache, or downloaded files cache, is a component of Microsoft's .NET Framework that is similar to the Global Assembly Cache except that it caches assemblies that have been downloaded from the Internet. Q. Assemblies are downloaded from the Internet when a specific managed object is requested using the <obj...
https://en.wikipedia.org/wiki/Harmonic%20mixer
The harmonic mixer and subharmonic mixer are a type of frequency mixer, which is a circuit that changes one signal frequency to another. The ordinary mixer has two input signals and one output signal. If the two input signals are sinewaves at frequencies f1 and f2, then the output signal consists of frequency component...
https://en.wikipedia.org/wiki/Copyright%20alternatives
Various copyright alternatives in an alternative compensation systems (ACS) have been proposed as ways to allow the widespread reproduction of digital copyrighted works while still paying the authors and copyright owners of those works. This article only discusses those proposals which involve some form of government i...
https://en.wikipedia.org/wiki/Biological%20system
A biological system is a complex network which connects several biologically relevant entities. Biological organization spans several scales and are determined based different structures depending on what the system is. Examples of biological systems at the macro scale are populations of organisms. On the organ and tis...
https://en.wikipedia.org/wiki/Mitointeractome
Mitointeractome is a mitochondrial protein interactome database.
https://en.wikipedia.org/wiki/Quasiconvex%20function
In mathematics, a quasiconvex function is a real-valued function defined on an interval or on a convex subset of a real vector space such that the inverse image of any set of the form is a convex set. For a function of a single variable, along any stretch of the curve the highest point is one of the endpoints. The neg...
https://en.wikipedia.org/wiki/Sociality
Sociality is the degree to which individuals in an animal population tend to associate in social groups (gregariousness) and form cooperative societies. Sociality is a survival response to evolutionary pressures. For example, when a mother wasp stays near her larvae in the nest, parasites are less likely to eat the la...
https://en.wikipedia.org/wiki/API-Calculus
API Calculus is a program that solves calculus problems using operating systems within a device that solves calculus problems. In 1989, the PI- Calculus was created by Robin Milner and was very successful throughout the years. The PI Calculus is an extension of the process algebra CCS, a tool that has algebraic langua...
https://en.wikipedia.org/wiki/1%3A24%20scale
1:24 scale is a size for automobile models such as injection-molded plastic model kits or metal die-cast toys, which are built and collected by both children and adults. 1:24 means that a unit of measurement, such as one inch or one centimeter, on the model represents 24 units on the actual object. An example would be ...
https://en.wikipedia.org/wiki/Self-averaging
A self-averaging physical property of a disordered system is one that can be described by averaging over a sufficiently large sample. The concept was introduced by Ilya Mikhailovich Lifshitz. Definition Frequently in physics one comes across situations where quenched randomness plays an important role. Any physical...
https://en.wikipedia.org/wiki/Fractional%20crystallization%20%28chemistry%29
In chemistry, fractional crystallization is a method of refining substances based on differences in their solubility. It fractionates via differences in crystallization (forming of crystals). If a mixture of two or more substances in solution are allowed to crystallize, for example by allowing the temperature of the so...
https://en.wikipedia.org/wiki/List%20of%20formulas%20in%20Riemannian%20geometry
This is a list of formulas encountered in Riemannian geometry. Einstein notation is used throughout this article. This article uses the "analyst's" sign convention for Laplacians, except when noted otherwise. Christoffel symbols, covariant derivative In a smooth coordinate chart, the Christoffel symbols of the first ...
https://en.wikipedia.org/wiki/Ambient%20construction
In conformal geometry, the ambient construction refers to a construction of Charles Fefferman and Robin Graham for which a conformal manifold of dimension n is realized (ambiently) as the boundary of a certain Poincaré manifold, or alternatively as the celestial sphere of a certain pseudo-Riemannian manifold. The ambi...
https://en.wikipedia.org/wiki/Bach%20tensor
In differential geometry and general relativity, the Bach tensor is a trace-free tensor of rank 2 which is conformally invariant in dimension . Before 1968, it was the only known conformally invariant tensor that is algebraically independent of the Weyl tensor. In abstract indices the Bach tensor is given by where is...
https://en.wikipedia.org/wiki/Casein%20kinase%201
The Casein kinase 1 family () of protein kinases are serine/threonine-selective enzymes that function as regulators of signal transduction pathways in most eukaryotic cell types. CK1 isoforms are involved in Wnt signaling, circadian rhythms, nucleo-cytoplasmic shuttling of transcription factors, DNA repair, and DNA tra...
https://en.wikipedia.org/wiki/Landau%27s%20problems
At the 1912 International Congress of Mathematicians, Edmund Landau listed four basic problems about prime numbers. These problems were characterised in his speech as "unattackable at the present state of mathematics" and are now known as Landau's problems. They are as follows: Goldbach's conjecture: Can every even in...
https://en.wikipedia.org/wiki/Acoustic%20wave
Acoustic waves are a type of energy propagation through a medium by means of adiabatic loading and unloading. Important quantities for describing acoustic waves are acoustic pressure, particle velocity, particle displacement and acoustic intensity. Acoustic waves travel with a characteristic acoustic velocity that depe...
https://en.wikipedia.org/wiki/List%20of%20Plan%209%20applications
This is a list of Plan 9 programs. Many of these programs are very similar to the UNIX programs with the same name, others are to be found only on Plan 9. Others again share only the name, but have a different behaviour. System software General user dd – convert and copy a file date – date and time echo – print a...
https://en.wikipedia.org/wiki/Larvicide
A larvicide (alternatively larvacide) is an insecticide that is specifically targeted against the larval life stage of an insect. Their most common use is against mosquitoes. Larvicides may be contact poisons, stomach poisons, growth regulators, or (increasingly) biological control agents. Biological agents The biolo...
https://en.wikipedia.org/wiki/Rothe%E2%80%93Hagen%20identity
In mathematics, the Rothe–Hagen identity is a mathematical identity valid for all complex numbers () except where its denominators vanish: It is a generalization of Vandermonde's identity, and is named after Heinrich August Rothe and Johann Georg Hagen.
https://en.wikipedia.org/wiki/Lerche%E2%80%93Newberger%20sum%20rule
The Lerche–Newberger, or Newberger, sum rule, discovered by B. S. Newberger in 1982, finds the sum of certain infinite series involving Bessel functions Jα of the first kind. It states that if μ is any non-integer complex number, , and Re(α + β) > −1, then Newberger's formula generalizes a formula of this type proven...
https://en.wikipedia.org/wiki/Time%20geography
Time geography or time-space geography is an evolving transdisciplinary perspective on spatial and temporal processes and events such as social interaction, ecological interaction, social and environmental change, and biographies of individuals. Time geography "is not a subject area per se", but rather an integrative o...
https://en.wikipedia.org/wiki/Casein%20kinase%202
Casein kinase 2 ()(CK2/CSNK2) is a serine/threonine-selective protein kinase that has been implicated in cell cycle control, DNA repair, regulation of the circadian rhythm, and other cellular processes. De-regulation of CK2 has been linked to tumorigenesis as a potential protection mechanism for mutated cells. Proper C...
https://en.wikipedia.org/wiki/Potato%20cyst%20nematode
Potato root nematodes or potato cyst nematodes (PCN) are 1-mm long roundworms belonging to the genus Globodera, which comprises around 12 species. They live on the roots of plants of the family Solanaceae, such as potatoes and tomatoes. PCN cause growth retardation and, at very high population densities, damage to the ...
https://en.wikipedia.org/wiki/Mechanical%20singularity
In engineering, a mechanical singularity is a position or configuration of a mechanism or a machine where the subsequent behaviour cannot be predicted, or the forces or other physical quantities involved become infinite or nondeterministic. When the underlying engineering equations of a mechanism or machine are evalua...
https://en.wikipedia.org/wiki/AP%20Physics%20C%3A%20Electricity%20and%20Magnetism
Advanced Placement (AP) Physics C: Electricity and Magnetism (also known as AP Physics C: E&M or AP E&M) is an introductory physics course administered by the College Board as part of its Advanced Placement program. It is intended to proxy a second-semester calculus-based university course in electricity and magnetism....
https://en.wikipedia.org/wiki/Chebyshev%20function
In mathematics, the Chebyshev function is either a scalarising function (Tchebycheff function) or one of two related functions. The first Chebyshev function or is given by where denotes the natural logarithm, with the sum extending over all prime numbers that are less than or equal to . The second Chebyshev func...
https://en.wikipedia.org/wiki/Implicational%20propositional%20calculus
In mathematical logic, the implicational propositional calculus is a version of classical propositional calculus which uses only one connective, called implication or conditional. In formulas, this binary operation is indicated by "implies", "if ..., then ...", "→", "", etc.. Functional (in)completeness Implication al...
https://en.wikipedia.org/wiki/Molecular%20mimicry
Molecular mimicry is the theoretical possibility that sequence similarities between foreign and self-peptides are enough to result in the cross-activation of autoreactive T or B cells by pathogen-derived peptides. Despite the prevalence of several peptide sequences which can be both foreign and self in nature, just a f...
https://en.wikipedia.org/wiki/Jacobi%20rotation
In numerical linear algebra, a Jacobi rotation is a rotation, Qkℓ, of a 2-dimensional linear subspace of an n-dimensional inner product space, chosen to zero a symmetric pair of off-diagonal entries of an n×n real symmetric matrix, A, when applied as a similarity transformation: It is the core operation in the J...
https://en.wikipedia.org/wiki/International%20Social%20Survey%20Programme
The International Social Survey Programme (ISSP) is a collaboration between different nations conducting surveys covering topics which are useful for social science research. The ISSP researchers develop questions which are meaningful and relevant to all countries which can be expressed in an equal manner in different ...
https://en.wikipedia.org/wiki/Centre%20for%20DNA%20Fingerprinting%20and%20Diagnostics
Centre for DNA Fingerprinting and Diagnostics (CDFD) is an Indian biotechnology research centre, located in Hyderabad, India, operated by the Department of Biotechnology, Ministry of Science and Technology, Government of India. CDFD is a Sun Microsystems centre of excellence in medical bio-informatics, supported with a...
https://en.wikipedia.org/wiki/Structural%20mechanics
Structural mechanics or mechanics of structures is the computation of deformations, deflections, and internal forces or stresses (stress equivalents) within structures, either for design or for performance evaluation of existing structures. It is one subset of structural analysis. Structural mechanics analysis needs in...
https://en.wikipedia.org/wiki/Initialization-on-demand%20holder%20idiom
In software engineering, the initialization-on-demand holder (design pattern) idiom is a lazy-loaded singleton. In all versions of Java, the idiom enables a safe, highly concurrent lazy initialization of static fields with good performance. public class Something { private Something() {} private static class ...
https://en.wikipedia.org/wiki/Accessible%20surface%20area
The accessible surface area (ASA) or solvent-accessible surface area (SASA) is the surface area of a biomolecule that is accessible to a solvent. Measurement of ASA is usually described in units of square angstroms (a standard unit of measurement in molecular biology). ASA was first described by Lee & Richards in 1971 ...
https://en.wikipedia.org/wiki/Follistatin
Follistatin also known as activin-binding protein is a protein that in humans is encoded by the FST gene. Follistatin is an autocrine glycoprotein that is expressed in nearly all tissues of higher animals. Its primary function is the binding and bioneutralization of members of the TGF-β superfamily, with a particular ...
https://en.wikipedia.org/wiki/Prickle%20%28protein%29
Prickle is also known as REST/NRSF-interacting LIM domain protein, which is a putative nuclear translocation receptor. Prickle is part of the non-canonical Wnt signaling pathway that establishes planar cell polarity. A gain or loss of function of Prickle1 causes defects in the convergent extension movements of gastrula...
https://en.wikipedia.org/wiki/Laboratori%20Nazionali%20del%20Gran%20Sasso
Laboratori Nazionali del Gran Sasso (LNGS) is the largest underground research center in the world. Situated below Gran Sasso mountain in Italy, it is well known for particle physics research by the INFN. In addition to a surface portion of the laboratory, there are extensive underground facilities beneath the mountain...
https://en.wikipedia.org/wiki/Lefty%20%28protein%29
Lefty (left-right determination factors) are a class of proteins that are closely related members of the TGF-beta superfamily of growth factors. These proteins are secreted and play a role in left-right asymmetry determination of organ systems during development. Mutations of the genes encoding these proteins have been...
https://en.wikipedia.org/wiki/Tractor%20bundle
In conformal geometry, the tractor bundle is a particular vector bundle constructed on a conformal manifold whose fibres form an effective representation of the conformal group (see associated bundle). The term tractor is a portmanteau of "Tracy Thomas" and "twistor", the bundle having been introduced first by T. Y...
https://en.wikipedia.org/wiki/BackTrack
BackTrack was a Linux distribution that focused on security, based on the Knoppix Linux distribution aimed at digital forensics and penetration testing use. In March 2013, the Offensive Security team rebuilt BackTrack around the Debian distribution and released it under the name Kali Linux. History The BackTrack dist...
https://en.wikipedia.org/wiki/Conformal%20connection
In conformal differential geometry, a conformal connection is a Cartan connection on an n-dimensional manifold M arising as a deformation of the Klein geometry given by the celestial n-sphere, viewed as the homogeneous space O+(n+1,1)/P where P is the stabilizer of a fixed null line through the origin in Rn+2, in the...
https://en.wikipedia.org/wiki/Avermectin
The avermectins are a series of drugs and pesticides used to treat parasitic worms and insect pests. They are a group of 16-membered macrocyclic lactone derivatives with potent anthelmintic and insecticidal properties. These naturally occurring compounds are generated as fermentation products by Streptomyces avermitili...