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https://en.wikipedia.org/wiki/113th%20meridian%20west | The meridian 113° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole.
The 113th meridian west forms a great circle with the 67th meridian east.
From Pole to Pole
Starting at the North... |
https://en.wikipedia.org/wiki/Vector%20addition%20system | A vector addition system (VAS) is one of several mathematical modeling languages for the description of distributed systems. Vector addition systems were introduced by Richard M. Karp and Raymond E. Miller in 1969, and generalized to vector addition systems with states (VASS) by John E. Hopcroft and Jean-Jacques Pansi... |
https://en.wikipedia.org/wiki/Accumulation%20function | The accumulation function a(t) is a function defined in terms of time t expressing the ratio of the value at time t (future value) and the initial investment (present value). It is used in interest theory.
Thus a(0)=1 and the value at time t is given by:
.
where the initial investment is
For various interest-acc... |
https://en.wikipedia.org/wiki/Arion%20vejdorskyi | Arion vejdorskyi or Arion vejdowskyi is a taxon with unclear taxonomic position and probably a synonym for other species. It was described as a species of air-breathing land slug, a shell-less terrestrial gastropod mollusk in the family Arionidae, the roundback slugs.
Synonyms
This slug was described from the Czech R... |
https://en.wikipedia.org/wiki/Formate%E2%80%93tetrahydrofolate%20ligase | In enzymology, a formate—tetrahydrofolate ligase () is an enzyme that catalyzes the chemical reaction
ATP + formate + tetrahydrofolate ADP + phosphate + 10-formyltetrahydrofolate
The 3 substrates of this enzyme are ATP, formate, and tetrahydrofolate, whereas its 3 products are ADP, phosphate, and 10-formyltetrahydro... |
https://en.wikipedia.org/wiki/Polarized%20target | The polarized targets are used as fixed targets in scattering experiments. In high energy physics they are used to study the nucleon spin structure of simple nucleons like protons, neutrons or deuterons. In deep inelastic scattering the hadron structure is probed with electrons, muons or neutrinos.
Using a polarized h... |
https://en.wikipedia.org/wiki/OpenWebNet | OpenWebNet is a communications protocol developed by Bticino since 2000.
The OpenWebNet protocol allows a "high-level" interaction between a remote unit and Bus SCS of MyHome domotic system. The latest protocol evolution has been improved to allow interaction with well-known home automation systems like KNX and DMX512... |
https://en.wikipedia.org/wiki/Amyloid-beta%20precursor%20protein | Amyloid-beta precursor protein (APP) is an integral membrane protein expressed in many tissues and concentrated in the synapses of neurons. It functions as a cell surface receptor and has been implicated as a regulator of synapse formation, neural plasticity, antimicrobial activity, and iron export. It is coded for by ... |
https://en.wikipedia.org/wiki/Direct%20image%20with%20compact%20support | In mathematics, the direct image with compact (or proper) support is an image functor for sheaves that extends the compactly supported global sections functor to the relative setting. It is one of Grothendieck's six operations.
Definition
Let f: X → Y be a continuous mapping of locally compact Hausdorff topological s... |
https://en.wikipedia.org/wiki/Graeme%20Snooks | Graeme Donald Snooks (born 1944 in Perth, Western Australia) is a systems theorist and stratologist who has developed a general dynamic theory to explain complex living systems. His resulting "dynamic-strategy theory" has been employed to analyse the fluctuating fortunes of life over the past 4,000 million years (myrs)... |
https://en.wikipedia.org/wiki/Allele%20frequency | Allele frequency, or gene frequency, is the relative frequency of an allele (variant of a gene) at a particular locus in a population, expressed as a fraction or percentage. Specifically, it is the fraction of all chromosomes in the population that carry that allele over the total population or sample size. Microevolut... |
https://en.wikipedia.org/wiki/HTTP%20cookie | HTTP cookies (also called web cookies, Internet cookies, browser cookies, or simply cookies) are small blocks of data created by a web server while a user is browsing a website and placed on the user's computer or other device by the user's web browser. Cookies are placed on the device used to access a website, and mor... |
https://en.wikipedia.org/wiki/Cancer%20screening%20in%20Ireland | BowelScreen, BreastCheck and CervicalCheck are cancer screening programmes organised by the Health Service Executive (HSE) in the Republic of Ireland.
BowelScreen
BowelScreen is the national bowel cancer screening programme. It was launched in November 2012 by Minister for Health James Reilly, with the eventual aim o... |
https://en.wikipedia.org/wiki/Oskar%20Perron | Oskar Perron (7 May 1880 – 22 February 1975) was a German mathematician.
He was a professor at the University of Heidelberg from 1914 to 1922 and at the University of Munich from 1922 to 1951. He made numerous contributions to differential equations and partial differential equations, including the Perron method to s... |
https://en.wikipedia.org/wiki/Stable-isotope%20probing | Stable-isotope probing (SIP) is a technique in microbial ecology for tracing uptake of nutrients in biogeochemical cycling by microorganisms. A substrate is enriched with a heavier stable isotope that is consumed by the organisms to be studied. Biomarkers with the heavier isotopes incorporated into them can be separate... |
https://en.wikipedia.org/wiki/Fabric%20Shortest%20Path%20First | Fabric Shortest Path First (FSPF) is a routing protocol used in Fibre Channel computer networks. It calculates the best path between network switches, establishes routes across the fabric and calculates alternate routes in event of a failure or network topology change. FSPF can guarantee in-sequence delivery of frames,... |
https://en.wikipedia.org/wiki/Cancer%20epigenetics | Cancer epigenetics is the study of epigenetic modifications to the DNA of cancer cells that do not involve a change in the nucleotide sequence, but instead involve a change in the way the genetic code is expressed. Epigenetic mechanisms are necessary to maintain normal sequences of tissue specific gene expression and a... |
https://en.wikipedia.org/wiki/Steve%20Jones%20%28biologist%29 | John Stephen Jones DSC FLSW (born 24 March 1944) is a British geneticist and from 1995 to 1999 and 2008 to June 2010 was Head of the Department of Genetics, Evolution and Environment at University College London. His studies are conducted in the Galton Laboratory.
He is also a television presenter and a prize-winning... |
https://en.wikipedia.org/wiki/Response%20factor | Response factor, usually in chromatography and spectroscopy, is the ratio between a signal produced by an analyte, and the quantity of analyte which produces the signal. Ideally, and for easy computation, this ratio is unity (one). In real-world scenarios, this is often not the case.
Expression
The response factor ca... |
https://en.wikipedia.org/wiki/Cyclic%20stress | Cyclic stress is the distribution of forces (aka stresses) that change over time in a repetitive fashion. As an example, consider one of the large wheels used to drive an aerial lift such as a ski lift. The wire cable wrapped around the wheel exerts a downward force on the wheel and the drive shaft supporting the whee... |
https://en.wikipedia.org/wiki/Chain%20scission | Chain scission is a term used in polymer chemistry describing the degradation of a polymer main chain. It is often caused by thermal stress (heat) or ionizing radiation (e.g. light, UV radiation or gamma radiation), often involving oxygen. During chain cleavage, the polymer chain is broken at a random point in the back... |
https://en.wikipedia.org/wiki/Weighted%20Voronoi%20diagram | In mathematics, a weighted Voronoi diagram in n dimensions is a generalization of a Voronoi diagram. The Voronoi cells in a weighted Voronoi diagram are defined in terms of a distance function. The distance function may specify the usual Euclidean distance, or may be some other, special distance function. In weighted V... |
https://en.wikipedia.org/wiki/Animat | Animat are artificial animals and is a contraction of animal and materials. The term includes physical robots and virtual simulations. The animat model includes features of a simple animal capable of interacting with its environment. It is, therefore, designed to simulate the ability to associate certain signals from t... |
https://en.wikipedia.org/wiki/Vladas%20Sidoravicius | Vladas Sidoravicius (1963, Vilnius, Lithuania – 23 May 2019, Shanghai) was a Lithuanian-Brazilian mathematician, specializing in probability theory.
Education and career
At Vilnius University, Sidoravicius graduated in mathematics with Diplom in 1985 and Magister degree in 1986. At Lomonosov State University he matric... |
https://en.wikipedia.org/wiki/Maranta%20arundinacea | Maranta arundinacea, also known as arrowroot, maranta, West Indian arrowroot, obedience plant, Bermuda arrowroot, araru, araruta, ararao or hulankeeriya, is a large, perennial herb found in rainforest habitats of the Americas, but cultivated in tropical regions worldwide.
Description
Arrowroot is a perennial plant gr... |
https://en.wikipedia.org/wiki/Power-off%20testing | Power-off testing is often necessary to test the printed circuit assembly (PCA) board due to uncertainty as to the nature of the failure. When the PCA can be further damaged by applying power it is necessary to use power off test techniques to safely examine it. Power off testing includes analog signature analysis, ohm... |
https://en.wikipedia.org/wiki/Valour%20%28software%29 | Valour is a copy/backup/restore program for IBM's VM environment.
The product
Valour, also called DiskWorks as well as strategic marketing brands chosen by vendors, grew out of a plan to rewrite the aging Westinghouse Disc Utility (WDU) and target the full range of IBM operating systems.
Valour runs as a highly pri... |
https://en.wikipedia.org/wiki/RelayNet | RelayNet was an e-mail exchange network used by PCBoard bulletin board systems (BBS's). By 1990, RelayNet comprised more than 200 bulletin board systems. BBS's on RelayNet communicated via a communications protocol called RIME (RelayNet International Mail Exchange).
RelayNet was similar to FidoNet in purpose and techn... |
https://en.wikipedia.org/wiki/List%20of%20Java%20virtual%20machines | This article provides non-exhaustive lists of Java SE Java virtual machines (JVMs). It does not include every Java ME vendor. Note that Java EE runs on the standard Java SE JVM but that some vendors specialize in providing a modified JVM optimized for Java EE applications. Much Java development work takes place on Wind... |
https://en.wikipedia.org/wiki/Local%20differential%20privacy | Local differential privacy (LDP) is a model of differential privacy with the added requirement that if an adversary has access to the personal responses of an individual in the database, that adversary will still be unable to learn much of the user's personal data. This is contrasted with global differential privacy, a... |
https://en.wikipedia.org/wiki/Regular%20numerical%20predicate | In computer science and mathematics, more precisely in automata theory, model theory and formal language, a regular numerical predicate is a kind of relation over integers. Regular numerical predicates can also be considered as a subset of for some arity . One of the main interests of this class of predicates is that ... |
https://en.wikipedia.org/wiki/Sorting%20and%20assembly%20machinery | The outer mitochondrial membrane is made up of two essential proteins, Tom40 and Sam50.
Tom40
Tom40 is a protein import pore required for the import of precursor proteins across the outer mitochondrial membrane, and it makes up part of the translocase of the outer membrane.
Sam50
Sam50 is a subunit of the sorting and... |
https://en.wikipedia.org/wiki/Young%27s%20modulus | Young's modulus (or Young modulus) is a mechanical property of solid materials that measures the tensile or compressive stiffness when the force is applied lengthwise. It is the modulus of elasticity for tension or axial compression. Young's modulus is defined as the ratio of the stress (force per unit area) applied to... |
https://en.wikipedia.org/wiki/Intermodulation | Intermodulation (IM) or intermodulation distortion (IMD) is the amplitude modulation of signals containing two or more different frequencies, caused by nonlinearities or time variance in a system. The intermodulation between frequency components will form additional components at frequencies that are not just at harmo... |
https://en.wikipedia.org/wiki/Hemiepiphyte | A hemiepiphyte is a plant that spends part of its life cycle as an epiphyte. The seeds of primary hemiepiphytes germinate in the canopy and initially live epiphytically. They send roots downward, and these roots eventually make contact with the ground. Secondary hemiepiphytes are root-climbers that begin as rooted vi... |
https://en.wikipedia.org/wiki/Sexy%20prime | In number theory, sexy primes are prime numbers that differ from each other by 6. For example, the numbers 5 and 11 are both sexy primes, because both are prime and .
The term "sexy prime" is a pun stemming from the Latin word for six: .
If or (where is the lower prime) is also prime, then the sexy prime is part ... |
https://en.wikipedia.org/wiki/Tekno%20%28toy%20manufacturer%29 | Tekno is a Danish manufacturing company (as "Dansk Legetojs Industri") of scale model trucks and other vehicles, currently headquartered in De Lier, Netherlands. Originally established and based in Copenhagen, Tekno began manufacturing construction toys in 1928 and model vehicles immediately after World War II, selling... |
https://en.wikipedia.org/wiki/List%20of%20botanists%20by%20author%20abbreviation%20%28T%E2%80%93V%29 |
A–S
To find entries for A–S, use the table of contents above.
T
T.A.Chr. – Tyge Ahrengot Christensen (1918–1996)
Täckh. – Vivi Täckholm (1898–1978)
Tagawa – Motozi Tagawa (1908–1977)
Tagg – Harry Frank Tagg (1874–1933)
Takeda – Hisayoshi Takeda (1883–1972)
Takeuchi – H.Takeuchi (fl. 1929)
Takht. – Armen T... |
https://en.wikipedia.org/wiki/RF%20power%20amplifier | A radio-frequency power amplifier (RF power amplifier) is a type of electronic amplifier that converts a low-power radio-frequency signal into a higher-power signal. Typically, RF power amplifiers are used in the final stage of a radio transmitter, their output driving the antenna. Design goals often include gain, powe... |
https://en.wikipedia.org/wiki/Structure%20field%20map | Structure field maps (SFMs) or structure maps are visualizations of the relationship between ionic radii and crystal structures for representing classes of materials. The SFM and its extensions has found broad applications in geochemistry, mineralogy, chemical synthesis of materials, and nowadays in materials informati... |
https://en.wikipedia.org/wiki/Algebraic%20semantics%20%28mathematical%20logic%29 | In mathematical logic, algebraic semantics is a formal semantics based on algebras studied as part of algebraic logic. For example, the modal logic S4 is characterized by the class of topological boolean algebras—that is, boolean algebras with an interior operator. Other modal logics are characterized by various other ... |
https://en.wikipedia.org/wiki/Chief%20cell | In human anatomy, there are three types of chief cells, the gastric chief cell, the parathyroid chief cell, and the type 1 chief cells found in the carotid body.
Cell types
The gastric chief cell (also known as a zymogenic cell or peptic cell) is a cell in the stomach that releases pepsinogen and chymosin. Pepsinogen ... |
https://en.wikipedia.org/wiki/Female%20sperm%20storage | Female sperm storage is a biological process and often a type of sexual selection in which sperm cells transferred to a female during mating are temporarily retained within a specific part of the reproductive tract before the oocyte, or egg, is fertilized. This process takes place in some species of animals, but not in... |
https://en.wikipedia.org/wiki/Row%20echelon%20form | In linear algebra, a matrix is in row echelon form if it can be obtained as the result of Gaussian elimination. In particular, every matrix can be put in row echelon form by a succession of elementary row operations. The term echelon comes from the French "échelon" ("level" or step of a ladder), and refers to the fact ... |
https://en.wikipedia.org/wiki/Equivalent%20carbon%20content | The equivalent carbon content concept is used on ferrous materials, typically steel and cast iron, to determine various properties of the alloy when more than just carbon is used as an alloyant, which is typical. The idea is to convert the percentage of alloying elements other than carbon to the equivalent carbon perce... |
https://en.wikipedia.org/wiki/Eigenspinor | In quantum mechanics, eigenspinors are thought of as basis vectors representing the general spin state of a particle. Strictly speaking, they are not vectors at all, but in fact spinors. For a single spin 1/2 particle, they can be defined as the eigenvectors of the Pauli matrices.
General eigenspinors
In quantum me... |
https://en.wikipedia.org/wiki/CMX521 | CMX521 is an antiviral drug discovered by Chimerix, which was developed for the treatment of norovirus, though it also shows efficacy against related viral diarrheas such as rotovirus and some sapoviruses, astroviruses and adenoviruses. It is a nucleoside analogue which acts as an inhibitor of viral RNA-dependant RNA p... |
https://en.wikipedia.org/wiki/Tastes%20like%20chicken | "Tastes like chicken" is a declaration used when trying to describe the flavor of an unusual food. The expression has been used so often in popular culture that it has become a cliché. As a result, the phrase is also sometimes used to provide incongruous humor, by being used to describe foods or situations where it has... |
https://en.wikipedia.org/wiki/Matti%20Jutila | Matti Ilmari Jutila (born 1943) is a mathematician and a professor emeritus at the University of Turku. He researches in the field of analytic number theory.
Education and career
Jutila completed a doctorate at the University of Turku in 1970, with a dissertation related to Linnik's constant supervised by .
Jutila's ... |
https://en.wikipedia.org/wiki/Nicholas%20Kurti | Nicholas Kurti, () (14 May 1908 – 24 November 1998) was a Hungarian-born British physicist who lived in Oxford, UK, for most of his life.
Career
Born in Budapest, Kurti went to high school at the Minta Gymnasium, but due to anti-Jewish laws he had to leave the country, gaining his master's degree at the Sorbonne in P... |
https://en.wikipedia.org/wiki/Robinson%20oscillator | The Robinson oscillator is an electronic oscillator circuit originally devised for use in the field of continuous wave (CW) nuclear magnetic resonance (NMR). It was a development of the marginal oscillator. Strictly one should distinguish between the marginal oscillator and the Robinson oscillator, although sometimes t... |
https://en.wikipedia.org/wiki/Solaris%20IP%20network%20multipathing | The IP network multipathing or IPMP is a facility provided by Solaris to provide fault-tolerance and load spreading for network interface cards (NICs). With IPMP, two or more NICs are dedicated for each network to which the host connects. Each interface can be assigned a static "test" IP address, which is used to asses... |
https://en.wikipedia.org/wiki/Knuth%20Prize | The Donald E. Knuth Prize is a prize for outstanding contributions to the foundations of computer science, named after the American computer scientist Donald E. Knuth.
History
The Knuth Prize has been awarded since 1996 and includes an award of US$5,000. The prize is awarded by ACM SIGACT and by IEEE Computer Society'... |
https://en.wikipedia.org/wiki/Neurophysiological%20Biomarker%20Toolbox | The Neurophysiological Biomarker Toolbox (NBT) is an open source MATLAB toolbox for the computation and integration of neurophysiological biomarkers (e.g., biomarkers based on EEG or MEG recordings). The NBT toolbox has so far been used in seven peer-reviewed research articles, and has a broad user base of more than ... |
https://en.wikipedia.org/wiki/Quantum%20cognition | Quantum cognition is an emerging field which applies the mathematical formalism of quantum theory to model cognitive phenomena such as information processing by the human brain, language, decision making, human memory, concepts and conceptual reasoning, human judgment, and perception. The field clearly distinguishes it... |
https://en.wikipedia.org/wiki/Desulfovibrio%20arcticus | Desulfovibrio arcticus is a Gram-negative, psychrotolerant, sulfate-reducing and motile bacterium from the genus of Desulfovibrio with a single polar flagellum which has been isolated from water from permafrost from the Barents Sea. |
https://en.wikipedia.org/wiki/The%20Plutonium%20Files | The Plutonium Files: America's Secret Medical Experiments in the Cold War is a 1999 book by Eileen Welsome. It is a history of United States government-engineered radiation experiments on unwitting Americans, based on the Pulitzer Prize–winning series Welsome wrote for The Albuquerque Tribune.
Overview
The experiments... |
https://en.wikipedia.org/wiki/Solar%20cell | A solar cell or photovoltaic cell (PV cell) is an electronic device that converts the energy of light directly into electricity by means of the photovoltaic effect. It is a form of photoelectric cell, a device whose electrical characteristics (such as current, voltage, or resistance) vary when exposed to light. Individ... |
https://en.wikipedia.org/wiki/Comparison%20of%20GUI%20testing%20tools | GUI testing tools serve the purpose of automating the testing process of software with graphical user interfaces. |
https://en.wikipedia.org/wiki/Parallel%20projection | In three-dimensional geometry, a parallel projection (or axonometric projection) is a projection of an object in three-dimensional space onto a fixed plane, known as the projection plane or image plane, where the rays, known as lines of sight or projection lines, are parallel to each other. It is a basic tool in descri... |
https://en.wikipedia.org/wiki/List%20of%20commutative%20algebra%20topics | Commutative algebra is the branch of abstract algebra that studies commutative rings, their ideals, and modules over such rings. Both algebraic geometry and algebraic number theory build on commutative algebra. Prominent examples of commutative rings include polynomial rings, rings of algebraic integers, including the ... |
https://en.wikipedia.org/wiki/Folkman%20graph | In the mathematical field of graph theory, the Folkman graph is a 4-regular graph with 20 vertices and 40 edges. It is a regular bipartite graph with symmetries taking every edge to every other edge, but the two sides of its bipartition are not symmetric with each other, making it the smallest possible semi-symmetric g... |
https://en.wikipedia.org/wiki/A-not-B%20error | The A-not-B error is an incomplete or absent schema of object permanence, normally observed during the sensorimotor stage of Jean Piaget's Theory of Cognitive Development.
A typical A-not-B task goes like this: An experimenter hides an attractive toy under box "A" within the baby's reach. The baby searches for the toy... |
https://en.wikipedia.org/wiki/Video%20feedback | Video feedback is the process that starts and continues when a video camera is pointed at its own playback video monitor. The loop delay from camera to display back to camera is at least one video frame time, due to the input and output scanning processes; it can be more if there is more processing in the loop.
Histor... |
https://en.wikipedia.org/wiki/Finite%20algebra | In abstract algebra, an -algebra is finite if it is finitely generated as an -module. An -algebra can be thought as a homomorphism of rings , in this case is called a finite morphism if is a finite -algebra.
The definition of finite algebra is related to that of algebras of finite type.
Finite morphisms in algebra... |
https://en.wikipedia.org/wiki/Directive%2092/58/EEC | The Directive 92/58/EEC specifies the minimum requirements for safety signs within the European Union. It superseded the Directive 77/576/EEC. While not being replaced by the standard ISO 7010, both signage systems can be used. This directive does not apply to signage used for controlling roadway, railway, waterway or ... |
https://en.wikipedia.org/wiki/Autoimmune%20retinopathy | Autoimmune retinopathy (AIR) is a rare disease in which the patient's immune system attacks proteins in the retina, leading to loss of eyesight. The disease is poorly understood, but may be the result of cancer or cancer chemotherapy. The disease is an autoimmune condition characterized by vision loss, blind spots, and... |
https://en.wikipedia.org/wiki/RiAFP | RiAFP refers to an antifreeze protein (AFP) produced by the Rhagium inquisitor longhorned beetle. It is a type V antifreeze protein with a molecular weight of 12.8 kDa; this type of AFP is noted for its hyperactivity. R. inquisitor is a freeze-avoidant species, meaning that, due to its AFP, R. inquisitor prevents its b... |
https://en.wikipedia.org/wiki/Alireza%20Mashaghi | Alireza Mashaghi is a physician-scientist and biophysicist at Leiden University. He is known for his contributions to single-molecule analysis of chaperone assisted protein folding, molecular topology and medical systems biophysics and bioengineering. He is a leading advocate for interdisciplinary research and educatio... |
https://en.wikipedia.org/wiki/Trinitite | Trinitite, also known as atomsite or Alamogordo glass, is the glassy residue left on the desert floor after the plutonium-based Trinity nuclear bomb test on July 16, 1945, near Alamogordo, New Mexico. The glass is primarily composed of arkosic sand composed of quartz grains and feldspar (both microcline and smaller amo... |
https://en.wikipedia.org/wiki/ZipZaps | ZipZaps are miniature radio-controlled cars that were sold by RadioShack, later marketed under the brand name XMODS Micro RC. They were commonly compared to Tomy's Bit Char-G (sold in the U.S. as MicroSizers) and Takara's Digi-Q micro R/C lines.
Overview
First introduced in September 2002, ZipZaps were an instant succ... |
https://en.wikipedia.org/wiki/Sysjail | sysjail is a defunct user-land virtualiser for systems supporting the systrace library - as of version 1.0 limited to OpenBSD, NetBSD and MirOS. Its original design was inspired by FreeBSD jail, a similar utility (although part of the kernel) for FreeBSD. sysjail was developed and released in 2006 by Kristaps Dzonsons... |
https://en.wikipedia.org/wiki/Trust%20on%20first%20use | Trust on first use (TOFU), or trust upon first use (TUFU), is an authentication scheme used by client software which needs to establish a trust relationship with an unknown or not-yet-trusted endpoint. In a TOFU model, the client will try to look up the endpoint's identifier, usually either the public identity key of t... |
https://en.wikipedia.org/wiki/Wow%21%20signal | The Wow! signal was a strong narrowband radio signal detected on August 15, 1977, by Ohio State University's Big Ear radio telescope in the United States, then used to support the search for extraterrestrial intelligence. The signal appeared to come from the direction of the constellation Sagittarius and bore the expec... |
https://en.wikipedia.org/wiki/Determinant%20method | In mathematics, the determinant method is any of a family of techniques in analytic number theory.
The name was coined by Roger Heath-Brown and comes from the fact that the center piece of the method is estimating a certain determinant. Its main application is to give an upper bound for the number of rational points o... |
https://en.wikipedia.org/wiki/Distorted%20Schwarzschild%20metric | In physics, the distorted Schwarzschild metric is the metric of a standard/isolated Schwarzschild spacetime exposed in external fields. In numerical simulation, the Schwarzschild metric can be distorted by almost arbitrary kinds of external energy–momentum distribution. However, in exact analysis, the mature method to ... |
https://en.wikipedia.org/wiki/Bangladesh%20Physical%20Society | The Bangladesh Physical Society () is a non-profit organization composed of physicists in Bangladesh which encourages physics research and education. It publishes the Bangladesh Journal of Physics.
History
The Bangladesh Physical Society proposed holding international events and conferences in 1995.
On 11 March 2020,... |
https://en.wikipedia.org/wiki/Cyclic%20nucleotide-gated%20channel%20alpha%203 | Cyclic nucleotide-gated cation channel alpha-3 is a protein that in humans is encoded by the CNGA3 gene.
Function
This gene encodes a member of the cyclic nucleotide-gated cation channel protein family, which is required for normal vision and olfactory signal transduction. CNGA3 is expressed in cone photoreceptors a... |
https://en.wikipedia.org/wiki/Parsonage%E2%80%93Turner%20syndrome | Parsonage–Turner syndrome, also known as acute brachial neuropathy, neuralgic amyotrophy and abbreviated PTS, is a syndrome of unknown cause; although many specific risk factors have been identified (such as; post-operative, post-infectious, post-traumatic or post-vaccination), the cause is still unknown. The condition... |
https://en.wikipedia.org/wiki/Graph%20coloring | In graph theory, graph coloring is a special case of graph labeling; it is an assignment of labels traditionally called "colors" to elements of a graph subject to certain constraints. In its simplest form, it is a way of coloring the vertices of a graph such that no two adjacent vertices are of the same color; this is ... |
https://en.wikipedia.org/wiki/Real-time%20locating%20system | Real-time locating systems (RTLS), also known as real-time tracking systems, are used to automatically identify and track the location of objects or people in real time, usually within a building or other contained area. Wireless RTLS tags are attached to objects or worn by people, and in most RTLS, fixed reference po... |
https://en.wikipedia.org/wiki/Spherical%20Bernstein%27s%20problem | The spherical Bernstein's problem is a possible generalization of the original Bernstein's problem in the field of global differential geometry, first proposed by Shiing-Shen Chern in 1969, and then later in 1970, during his plenary address at the International Congress of Mathematicians in Nice.
The problem
Are the e... |
https://en.wikipedia.org/wiki/Cloud-based%20quantum%20computing | Cloud-based quantum computing is the invocation of quantum emulators, simulators or processors through the cloud. Increasingly, cloud services are being looked on as the method for providing access to quantum processing. Quantum computers achieve their massive computing power by initiating quantum physics into processi... |
https://en.wikipedia.org/wiki/Key%20encapsulation%20mechanism | In cryptographic protocols, a key encapsulation mechanism (KEM) or key encapsulation method is used to secure symmetric key material for transmission using asymmetric (public-key) algorithms. It is commonly used in hybrid cryptosystems. In practice, public key systems are clumsy to use in transmitting long messages. In... |
https://en.wikipedia.org/wiki/Roland%20GR-500 | The Roland GR-500 is a guitar synthesizer. Manufactured by the Roland Corporation and FujiGen in 1977, it was one of the first guitar synthesizers.
Overview
The synthesizer module included Polyensemble, Bass, Solo Synth, and External synthesizer control. Much of the voltage-controller filter and voltage controlled am... |
https://en.wikipedia.org/wiki/Debugging%20pattern | A debugging pattern describes a generic set of steps to rectify or correct a bug within a software system. It is a solution to a recurring problem that is related to a particular bug or type of bug in a specific context.
A bug pattern is a particular type of pattern. The original concept of a pattern was introduced ... |
https://en.wikipedia.org/wiki/Tornado%20code | In coding theory, Tornado codes are a class of erasure codes that support error correction. Tornado codes require a constant C more redundant blocks than the more data-efficient Reed–Solomon erasure codes, but are much faster to generate and can fix erasures faster. Software-based implementations of tornado codes are... |
https://en.wikipedia.org/wiki/Evolutionary%20attractor | An evolutionary attractor is a state toward which evolution tends. Most often it means that adaptation is moving a population of a species towards a particular goal that goal is the attractor. It less commonly means any other outcome of evolution and/or a larger group than one population.
Attractors are important to ... |
https://en.wikipedia.org/wiki/Codename%20One | Codename One is an open-source cross-platform framework aiming to provide write once, run anywhere code for various mobile and desktop operating systems (like Android, iOS, Windows, MacOS, and others). It was created by the co-founders of the LWUIT project (Chen Fishbein and Shai Almog) and was first announced on Janua... |
https://en.wikipedia.org/wiki/Quadratic%20form%20%28statistics%29 | In multivariate statistics, if is a vector of random variables, and is an -dimensional symmetric matrix, then the scalar quantity is known as a quadratic form in .
Expectation
It can be shown that
where and are the expected value and variance-covariance matrix of , respectively, and tr denotes the trace of a ma... |
https://en.wikipedia.org/wiki/Flavin%20mononucleotide | Flavin mononucleotide (FMN), or riboflavin-5′-phosphate, is a biomolecule produced from riboflavin (vitamin B2) by the enzyme riboflavin kinase and functions as the prosthetic group of various oxidoreductases, including NADH dehydrogenase, as well as cofactor in biological blue-light photo receptors. During the catalyt... |
https://en.wikipedia.org/wiki/Semantic%20Interoperability%20Community%20of%20Practice | Semantic Interoperability Community of Practice (SICoP) is a group of people who seek to make the Semantic Web operational in their respective settings by achieving "semantic interoperability" and "semantic data integration".
SICoP seeks to enable Semantic Interoperability, specifically the "operationalizing" of relev... |
https://en.wikipedia.org/wiki/Pharmacophore | In medicinal chemistry and molecular biology, a pharmacophore is an abstract description of molecular features that are necessary for molecular recognition of a ligand by a biological macromolecule. IUPAC defines a pharmacophore to be "an ensemble of steric and electronic features that is necessary to ensure the optima... |
https://en.wikipedia.org/wiki/Hybrid%20cloud%20storage | Hybrid cloud storage, in data storage, is a term for a storage infrastructure that uses a combination of on-premises storage resources with a public cloud storage provider. The on-premises storage is usually managed by the organization, while the public cloud storage provider is responsible for the management and secur... |
https://en.wikipedia.org/wiki/Two-body%20problem | In classical mechanics, the two-body problem is to predict the motion of two massive objects which are abstractly viewed as point particles. The problem assumes that the two objects interact only with one another; the only force affecting each object arises from the other one, and all other objects are ignored.
The mo... |
https://en.wikipedia.org/wiki/Dark-field%20X-ray%20microscopy | Dark-field X-ray microscopy (DFXM or DFXRM) is an imaging technique used for multiscale structural characterisation. It is capable of mapping deeply embedded structural elements with nm-resolution using synchrotron X-ray diffraction-based imaging. The technique works by using scattered X-rays to create a high degree of... |
https://en.wikipedia.org/wiki/Grex%20%28horticulture%29 | The term grex (plural greges or grexes; abbreviation gx), derived from the Latin noun , , meaning 'flock', has been expanded in botanical nomenclature to describe hybrids of orchids, based solely on their parentage. Grex names are one of the three categories of plant names governed by the International Code of Nomencla... |
https://en.wikipedia.org/wiki/Matthew%20Fuchter | Matthew John Fuchter is a British chemist who is a Professor of Chemistry at Imperial College London. His research focuses on the development and application of novel functional molecular systems to a broad range of areas; from materials to medicine. He has been awarded both the Harrison-Meldola Memorial Prize (2014) ... |
https://en.wikipedia.org/wiki/X%20mark | An X mark (also known as an ex mark or a cross mark or simply an X or ex or a cross) is used to indicate the concept of negation (for example "no, this has not been verified", "no, that is not the correct answer" or "no, I do not agree") as well as an indicator (for example, in election ballot papers or in maps as an x... |
https://en.wikipedia.org/wiki/Aviezri%20Fraenkel | Aviezri Siegmund Fraenkel () (born June 7, 1929) is an Israeli mathematician who has made contributions to combinatorial game theory.
Biography
Aviezri Siegmund Fraenkel was born in Munich, Germany, to a Jewish family, which then moved to Switzerland soon thereafter. In 1939 his family moved once more, to Jerusalem.
... |
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