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https://en.wikipedia.org/wiki/Hyperbolic%20spiral | A hyperbolic spiral is a plane curve, which can be described in polar coordinates by the equation
of a hyperbola. Because it can be generated by a circle inversion of an Archimedean spiral, it is called Reciprocal spiral, too.
Pierre Varignon first studied the curve in 1704. Later Johann Bernoulli and Roger Cotes wor... |
https://en.wikipedia.org/wiki/Connate%20fluids | In geology and sedimentology, connate fluids are liquids that were trapped in the pores of sedimentary rocks as they were deposited. These liquids are largely composed of water, but also contain many mineral components as ions in solution.
As rocks are buried, they undergo lithification and the connate fluids are usu... |
https://en.wikipedia.org/wiki/Submitochondrial%20particle | A submitochondrial particle (SMP) is an artificial vesicle made from the inner mitochondrial membrane. They can be formed by subjecting isolated mitochondria to sonication, freezing and thawing, high pressure, or osmotic shock. SMPs can be used to study the electron transport chain in a cell-free context.
The process ... |
https://en.wikipedia.org/wiki/Thermodynamic%20activity | In chemical thermodynamics, activity (symbol ) is a measure of the "effective concentration" of a species in a mixture, in the sense that the species' chemical potential depends on the activity of a real solution in the same way that it would depend on concentration for an ideal solution. The term "activity" in this s... |
https://en.wikipedia.org/wiki/Viburnum | Viburnum is a genus of about 150–175 species of flowering plants in the moschatel family, Adoxaceae. Its current classification is based on molecular phylogeny. It was previously included in the honeysuckle family Caprifoliaceae.
The member species are evergreen or deciduous shrubs or (in a few cases) small trees nat... |
https://en.wikipedia.org/wiki/Radiolaria | The Radiolaria, also called Radiozoa, are protozoa of diameter 0.1–0.2 mm that produce intricate mineral skeletons, typically with a central capsule dividing the cell into the inner and outer portions of endoplasm and ectoplasm. The elaborate mineral skeleton is usually made of silica. They are found as zooplankton thr... |
https://en.wikipedia.org/wiki/Primality%20test | A primality test is an algorithm for determining whether an input number is prime. Among other fields of mathematics, it is used for cryptography. Unlike integer factorization, primality tests do not generally give prime factors, only stating whether the input number is prime or not. Factorization is thought to be a co... |
https://en.wikipedia.org/wiki/Crystal%20Ball%20%28Styx%20album%29 | Crystal Ball is the sixth album by Styx, released in 1976.
This album marked the recording debut of new guitarist Tommy Shaw. The track "Mademoiselle" was Tommy Shaw's vocal debut and the album's Top-40 hit.
The album's title track would become a concert staple for the band, as it was performed on every subsequent St... |
https://en.wikipedia.org/wiki/Aragonite | Aragonite is a carbonate mineral and one of the three most common naturally occurring crystal forms of calcium carbonate (), the others being calcite and vaterite. It is formed by biological and physical processes, including precipitation from marine and freshwater environments.
The crystal lattice of aragonite differ... |
https://en.wikipedia.org/wiki/Thyrotropin-releasing%20hormone | Thyrotropin-releasing hormone (TRH) is a hypophysiotropic hormone produced by neurons in the hypothalamus that stimulates the release of thyroid-stimulating hormone (TSH) and prolactin from the anterior pituitary.
TRH has been used clinically for the treatment of spinocerebellar degeneration and disturbance of conscio... |
https://en.wikipedia.org/wiki/Volvocaceae | The Volvocaceae are a family of unicellular or colonial biflagellates, including the typical genus Volvox. The family was named by Ehrenberg in 1834, and is known in older classifications as the Volvocidae. All species are colonial and inhabit freshwater environments.
Description
The simplest of the Volvocaeans are or... |
https://en.wikipedia.org/wiki/K%C3%B6nig%27s%20theorem%20%28set%20theory%29 | In set theory, König's theorem states that if the axiom of choice holds, I is a set, and are cardinal numbers for every i in I, and for every i in I, then
The sum here is the cardinality of the disjoint union of the sets mi, and the product is the cardinality of the Cartesian product. However, without the use of ... |
https://en.wikipedia.org/wiki/JEDEC | The JEDEC Solid State Technology Association is an independent semiconductor engineering trade organization and standardization body headquartered in Arlington County, Virginia, United States.
JEDEC has over 300 members, including some of the world's largest computer companies. Its scope and past activities includes s... |
https://en.wikipedia.org/wiki/Bias%20%28statistics%29 | Statistical bias, in the mathematical field of statistics, is a systematic tendency in which the methods used to gather data and generate statistics present an inaccurate, skewed or biased depiction of reality. Statistical bias exists in numerous stages of the data collection and analysis process, including: the source... |
https://en.wikipedia.org/wiki/Time%20hierarchy%20theorem | In computational complexity theory, the time hierarchy theorems are important statements about time-bounded computation on Turing machines. Informally, these theorems say that given more time, a Turing machine can solve more problems. For example, there are problems that can be solved with n2 time but not n time.
The ... |
https://en.wikipedia.org/wiki/Perovskite%20%28structure%29 | A perovskite is any material with a crystal structure following the formula ABX3, which was first discovered as the mineral called perovskite, which consists of calcium titanium oxide (CaTiO3). The mineral was first discovered in the Ural mountains of Russia by Gustav Rose in 1839 and named after Russian mineralogist L... |
https://en.wikipedia.org/wiki/Petalite | Petalite, also known as castorite, is a lithium aluminum phyllosilicate mineral LiAlSi4O10, crystallizing in the monoclinic system. Petalite occurs as colorless, pink, grey, yellow, yellow grey, to white tabular crystals and columnar masses. It occurs in lithium-bearing pegmatites with spodumene, lepidolite, and tourma... |
https://en.wikipedia.org/wiki/FOXP2 | Forkhead box protein P2 (FOXP2) is a protein that, in humans, is encoded by the FOXP2 gene. FOXP2 is a member of the forkhead box family of transcription factors, proteins that regulate gene expression by binding to DNA. It is expressed in the brain, heart, lungs and digestive system.
FOXP2 is found in many vertebrate... |
https://en.wikipedia.org/wiki/%CE%93-Aminobutyric%20acid | γ-Aminobutyric acid (gamma-aminobutyric acid) , or GABA , is the chief inhibitory neurotransmitter in the developmentally mature mammalian central nervous system. Its principal role is reducing neuronal excitability throughout the nervous system.
GABA is sold as a dietary supplement in many countries. It has been trad... |
https://en.wikipedia.org/wiki/Microbotics | Microbotics (or microrobotics) is the field of miniature robotics, in particular mobile robots with characteristic dimensions less than 1 mm. The term can also be used for robots capable of handling micrometer size components.
History
Microbots were born thanks to the appearance of the microcontroller in the last deca... |
https://en.wikipedia.org/wiki/Aho%E2%80%93Corasick%20algorithm | In computer science, the Aho–Corasick algorithm is a string-searching algorithm invented by Alfred V. Aho and Margaret J. Corasick in 1975. It is a kind of dictionary-matching algorithm that locates elements of a finite set of strings (the "dictionary") within an input text. It matches all strings simultaneously. The c... |
https://en.wikipedia.org/wiki/Ramsey%27s%20theorem | In combinatorics, Ramsey's theorem, in one of its graph-theoretic forms, states that one will find monochromatic cliques in any edge labelling (with colours) of a sufficiently large complete graph. To demonstrate the theorem for two colours (say, blue and red), let and be any two positive integers. Ramsey's theorem s... |
https://en.wikipedia.org/wiki/Photonics | Photonics is a branch of optics that involves the application of generation, detection, and manipulation of light in form of photons through emission, transmission, modulation, signal processing, switching, amplification, and sensing. Photonics is closely related to quantum electronics, where quantum electronics deals ... |
https://en.wikipedia.org/wiki/Little%27s%20law | In mathematical queueing theory, Little's law (also result, theorem, lemma, or formula) is a theorem by John Little which states that the long-term average number L of customers in a stationary system is equal to the long-term average effective arrival rate λ multiplied by the average time W that a customer spends in t... |
https://en.wikipedia.org/wiki/Chat%20%28bird%29 | Chats (formerly sometimes known as "chat-thrushes") are a group of small Old World insectivorous birds formerly classified as members of the thrush family (Turdidae), but following genetic DNA analysis, are now considered to belong to the Old World flycatcher family (Muscicapidae).
The name is normally applied to the ... |
https://en.wikipedia.org/wiki/Brown%20Bess | "Brown Bess" is a nickname of uncertain origin for the British Army's muzzle-loading smoothbore flintlock Land Pattern Musket and its derivatives. The musket design remained in use for over a hundred years with many incremental changes in its design. These versions include the Long Land Pattern, the Short Land Pattern,... |
https://en.wikipedia.org/wiki/Agranulocytosis | Agranulocytosis, also known as agranulosis or granulopenia, is an acute condition involving a severe and dangerous lowered white blood cell count (leukopenia, most commonly of neutrophils) and thus causing neutropenia in the circulating blood. It is a severe lack of one major class of infection-fighting white blood ce... |
https://en.wikipedia.org/wiki/Metalloprotein | Metalloprotein is a generic term for a protein that contains a metal ion cofactor. A large proportion of all proteins are part of this category. For instance, at least 1000 human proteins (out of ~20,000) contain zinc-binding protein domains although there may be up to 3000 human zinc metalloproteins.
Abundance
It is ... |
https://en.wikipedia.org/wiki/Superfamily | Superfamily may refer to:
Protein superfamily
Superfamily database
Superfamily (taxonomy), a taxonomic rank
Superfamily (linguistics), also known as macrofamily
Font superfamily, a large typographic family
Superfamily (band), a Norwegian pop band
"Super Family", a group of comic characters |
https://en.wikipedia.org/wiki/Subspecies | In biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species have subspecies, but for those that do there must be at least ... |
https://en.wikipedia.org/wiki/Felicific%20calculus | The felicific calculus is an algorithm formulated by utilitarian philosopher Jeremy Bentham (1747–1832) for calculating the degree or amount of pleasure that a specific action is likely to induce. Bentham, an ethical hedonist, believed the moral rightness or wrongness of an action to be a function of the amount of plea... |
https://en.wikipedia.org/wiki/Regression%20toward%20the%20mean | In statistics, regression toward the mean (also called reversion to the mean, and reversion to mediocrity) is the phenomenon where if one sample of a random variable is extreme, the next sampling of the same random variable is likely to be closer to its mean. Furthermore, when many random variables are sampled and the ... |
https://en.wikipedia.org/wiki/Ellen%20Burstyn | Ellen Burstyn (born Edna Rae Gillooly; December 7, 1932) is an American actress. Known for her portrayals of complex women in dramas, she is the recipient of numerous accolades, including an Academy Award, a Tony Award, and two Primetime Emmy Awards, making her one of the few performers to achieve the "Triple Crown of ... |
https://en.wikipedia.org/wiki/Evaporite | An evaporite () is a water-soluble sedimentary mineral deposit that results from concentration and crystallization by evaporation from an aqueous solution. There are two types of evaporite deposits: marine, which can also be described as ocean deposits, and non-marine, which are found in standing bodies of water such a... |
https://en.wikipedia.org/wiki/Belousov%E2%80%93Zhabotinsky%20reaction | A Belousov–Zhabotinsky reaction, or BZ reaction, is one of a class of reactions that serve as a classical example of non-equilibrium thermodynamics, resulting in the establishment of a nonlinear chemical oscillator. The only common element in these oscillators is the inclusion of bromine and an acid. The reactions are ... |
https://en.wikipedia.org/wiki/Glutathione%20peroxidase | Glutathione peroxidase (GPx) () is the general name of an enzyme family with peroxidase activity whose main biological role is to protect the organism from oxidative damage. The biochemical function of glutathione peroxidase is to reduce lipid hydroperoxides to their corresponding alcohols and to reduce free hydrogen p... |
https://en.wikipedia.org/wiki/Fluvial%20landforms%20of%20streams | Fluvial processes have made streams, stream beds, and river valleys which have various classifications.
Classification
There are five generic classifications:
Consequent streams are streams whose course is a direct consequence of the original slope of the surface upon which it developed, i.e., streams that follow slo... |
https://en.wikipedia.org/wiki/Falsetto | Falsetto (, ; Italian diminutive of , "false") is the vocal register occupying the frequency range just above the modal voice register and overlapping with it by approximately one octave.
It is produced by the vibration of the ligamentous edges of the vocal cords, in whole or in part. Commonly cited in the context of ... |
https://en.wikipedia.org/wiki/Peneplain | In geomorphology and geology, a peneplain is a low-relief plain formed by protracted erosion. This is the definition in the broadest of terms, albeit with frequency the usage of peneplain is meant to imply the representation of a near-final (or penultimate) stage of fluvial erosion during times of extended tectonic sta... |
https://en.wikipedia.org/wiki/Heterotrich | The heterotrichs are a class of ciliates. They typically have a prominent adoral zone of membranelles circling the mouth, used in locomotion and feeding, and shorter cilia on the rest of the body. Many species are highly contractile, and are typically compressed or conical in form. These include some of the largest p... |
https://en.wikipedia.org/wiki/Statistics%20Canada | Statistics Canada (StatCan; ), formed in 1971, is the agency of the Government of Canada commissioned with producing statistics to help better understand Canada, its population, resources, economy, society, and culture. It is headquartered in Ottawa.
The agency is led by the chief statistician of Canada, currently Ani... |
https://en.wikipedia.org/wiki/Stirling%20engine | A Stirling engine is a heat engine that is operated by the cyclic compression and expansion of air or other gas (the working fluid) between different temperatures, resulting in a net conversion of heat energy to mechanical work.
More specifically, the Stirling engine is a closed-cycle regenerative heat engine, with a... |
https://en.wikipedia.org/wiki/Hall%27s%20marriage%20theorem | In mathematics, Hall's marriage theorem, proved by , is a theorem with two equivalent formulations. In each case, the theorem gives a necessary and sufficient condition for an object to exist:
The combinatorial formulation answers whether a finite collection of sets has a transversal—that is, whether an element can be... |
https://en.wikipedia.org/wiki/Calmodulin | Calmodulin (CaM) (an abbreviation for calcium-modulated protein) is a multifunctional intermediate calcium-binding messenger protein expressed in all eukaryotic cells. It is an intracellular target of the secondary messenger Ca2+, and the binding of Ca2+ is required for the activation of calmodulin. Once bound to Ca2+,... |
https://en.wikipedia.org/wiki/Frequency%20allocation | Frequency allocation (or spectrum allocation or spectrum management) is the allocation and regulation of the electromagnetic spectrum into radio frequency bands, normally done by governments in most countries. Because radio propagation does not stop at national boundaries, governments have sought to harmonise the alloc... |
https://en.wikipedia.org/wiki/Dpkg | dpkg is the software at the base of the package management system in the free operating system Debian and its numerous derivatives. dpkg is used to install, remove, and provide information about .deb packages.
dpkg (Debian Package) itself is a low-level tool. APT (Advanced Package Tool), a higher-level tool, is more c... |
https://en.wikipedia.org/wiki/Erik%20Axelsson%20Tott | Erik Axelsson (Tott) (c. 1419–1481) was a Dano-Swedish statesman and regent of Sweden under the Kalmar Union, jointly with Jöns Bengtsson Oxenstierna in 1457 and alone from 1466 to 1467.
Biography
He was born in Scania during the reign of King Eric of Pomerania, as the son of Axel Pedersen Thott, lord of Herlev and ... |
https://en.wikipedia.org/wiki/Amniotic%20sac | The amniotic sac, also called the bag of waters or the membranes, is the sac in which the embryo and later fetus develops in amniotes. It is a thin but tough transparent pair of membranes that hold a developing embryo (and later fetus) until shortly before birth. The inner of these membranes, the amnion, encloses the a... |
https://en.wikipedia.org/wiki/Amnion | The amnion (: amnions or amnia) is a membrane that closely covers the human and various other embryos when first formed. It fills with amniotic fluid, which causes the amnion to expand and become the amniotic sac that provides a protective environment for the developing embryo. The amnion, along with the chorion, the y... |
https://en.wikipedia.org/wiki/DL | DL, dL, or dl may stand for:
In science and technology
In electronics and computing
, an HTML element used for a definition list
Deep learning, a branch of algorithm-based machine learning
Description logics, a family of knowledge representation languages
Delete Line (ANSI), an ANSI X3.64 escape sequence
Digital libr... |
https://en.wikipedia.org/wiki/Climate%20of%20Missouri | Missouri generally has a variety of seasonal humid subtropical climate (Köppen climate classification Cfa), with cool winters and long, hot summers. In the southern part of the state, particularly in the Bootheel, the climate borders on a more mild-type humid subtropical climate (Köppen Cfa), and in the northern third,... |
https://en.wikipedia.org/wiki/Search%20engine%20optimization | Search engine optimization (SEO) is the process of improving the quality and quantity of website traffic to a website or a web page from search engines. SEO targets unpaid traffic (known as "natural" or "organic" results) rather than direct traffic or paid traffic. Unpaid traffic may originate from different kinds of s... |
https://en.wikipedia.org/wiki/Seo | Seo or SEO may refer to:
Search engine optimization, the process of improving the visibility of a website or a web page in search engines
Organisations
SEO Economic Research, a scientific institute
Spanish Ornithological Society (Sociedad Española de Ornitología)
People
Seo (surname), a Korean and Japanese famil... |
https://en.wikipedia.org/wiki/Reinke%27s%20edema | Reinke's edema is the swelling of the vocal cords due to fluid (edema) collected within the Reinke's space. First identified by the German anatomist Friedrich B. Reinke in 1895, the Reinke's space is a gelatinous layer of the vocal cord located underneath the outer cells of the vocal cord. When a person speaks, the Re... |
https://en.wikipedia.org/wiki/Medium%20tank | A medium tank is a classification of tanks, particularly prevalent during World War II which represented a compromise between the mobility oriented light tanks and the armour and armament oriented heavy tanks. A medium tank's classification is not actually based on weight, but off of tactical usage and intended purpose... |
https://en.wikipedia.org/wiki/Axiomatic%20system | In mathematics and logic, an axiomatic system is any set of axioms from which some or all axioms can be used in conjunction to logically derive theorems. A theory is a consistent, relatively-self-contained body of knowledge which usually contains an axiomatic system and all its derived theorems. An axiomatic system tha... |
https://en.wikipedia.org/wiki/Human%20papillomavirus%20infection | Human papillomavirus infection (HPV infection) is caused by a DNA virus from the Papillomaviridae family. Many HPV infections cause no symptoms and 90% resolve spontaneously within two years. In some cases, an HPV infection persists and results in either warts or precancerous lesions. These lesions, depending on the si... |
https://en.wikipedia.org/wiki/Active%20site | In biology and biochemistry, the active site is the region of an enzyme where substrate molecules bind and undergo a chemical reaction. The active site consists of amino acid residues that form temporary bonds with the substrate, the binding site, and residues that catalyse a reaction of that substrate, the catalytic s... |
https://en.wikipedia.org/wiki/Susan%20R.%20Wolf | Susan Rose Wolf (born 1952) is an American moral philosopher and philosopher of action who is currently the Edna J. Koury Professor of Philosophy at the University of North Carolina at Chapel Hill. She taught previously at Johns Hopkins University (1986–2002), the University of Maryland (1981–1986) and Harvard Universi... |
https://en.wikipedia.org/wiki/Bose%E2%80%93Einstein%20statistics | In quantum statistics, Bose–Einstein statistics (B–E statistics) describes one of two possible ways in which a collection of non-interacting identical particles may occupy a set of available discrete energy states at thermodynamic equilibrium. The aggregation of particles in the same state, which is a characteristic of... |
https://en.wikipedia.org/wiki/Compilers%3A%20Principles%2C%20Techniques%2C%20and%20Tools | Compilers: Principles, Techniques, and Tools is a computer science textbook by Alfred V. Aho, Monica S. Lam, Ravi Sethi, and Jeffrey D. Ullman about compiler construction for programming languages. First published in 1986, it is widely regarded as the classic definitive compiler technology text.
It is known as the Dra... |
https://en.wikipedia.org/wiki/Miller%E2%80%93Rabin%20primality%20test | The Miller–Rabin primality test or Rabin–Miller primality test is a probabilistic primality test: an algorithm which determines whether a given number is likely to be prime, similar to the Fermat primality test and the Solovay–Strassen primality test.
It is of historical significance in the search for a polynomial-tim... |
https://en.wikipedia.org/wiki/Code%20generation%20%28compiler%29 | In computing, code generation is part of the process chain of a compiler and converts intermediate representation of source code into a form (e.g., machine code) that can be readily executed by the target system.
Sophisticated compilers typically perform multiple passes over various intermediate forms. This multi-stag... |
https://en.wikipedia.org/wiki/Semantic%20analysis%20%28compilers%29 | Semantic analysis or context sensitive analysis is a process in compiler construction, usually after parsing, to gather necessary semantic information from the source code. It usually includes type checking, or makes sure a variable is declared before use which is impossible to describe in the extended Backus–Naur form... |
https://en.wikipedia.org/wiki/ATC | ATC may refer to:
Medicine
Acute traumatic coagulopathy
Anaplastic thyroid cancer, a form of thyroid cancer
Anatomical Therapeutic Chemical Classification System, a WHO drug classification system
Certified athletic trainer, post-nominal letters
Organizations
Military
Air Training Command, the predecessor to Air... |
https://en.wikipedia.org/wiki/Birthday%20attack | A birthday attack is a bruteforce collision attack that exploits the mathematics behind the birthday problem in probability theory. This attack can be used to abuse communication between two or more parties. The attack depends on the higher likelihood of collisions found between random attack attempts and a fixed degre... |
https://en.wikipedia.org/wiki/Automaton | An automaton (; : automata or automatons) is a relatively self-operating machine, or control mechanism designed to automatically follow a sequence of operations, or respond to predetermined instructions. Some automata, such as bellstrikers in mechanical clocks, are designed to give the illusion to the casual observer t... |
https://en.wikipedia.org/wiki/Sabbatai%20Zevi | Sabbatai Zevi (; ; August 1, 1626 – c. September 17, 1676), also spelled Shabbetai Ẓevi, Shabbeṯāy Ṣeḇī, Shabsai Tzvi, Sabbatai Zvi, was a Jewish mystic and ordained rabbi from Smyrna (now İzmir, Turkey). A kabbalist of Romaniote or Sephardic origin, Zevi, who was active throughout the Ottoman Empire, claimed to be the... |
https://en.wikipedia.org/wiki/Ova%20%28disambiguation%29 | Ova is the plural form of ovum, the female sex cell or gamete.
Ova or OVA may also refer to:
Places
Ova, Kaş, a village in the Antalya Province, Turkey
Ova, Kentucky, an unincorporated community
, Piedmontese name for Ovada, a in Piedmont, Italy
Organizations
Office for Veterans' Affairs, part of the UK Governm... |
https://en.wikipedia.org/wiki/Acetyl-CoA | Acetyl-CoA (acetyl coenzyme A) is a molecule that participates in many biochemical reactions in protein, carbohydrate and lipid metabolism. Its main function is to deliver the acetyl group to the citric acid cycle (Krebs cycle) to be oxidized for energy production. Coenzyme A (CoASH or CoA) consists of a β-mercaptoethy... |
https://en.wikipedia.org/wiki/Cape%20Coloureds | Cape Coloureds () are a South African ethnic classification consisting primarily of persons of mixed race African, Asian and European descent. Although Coloureds form a minority group within South Africa, they are the predominant population group in the Western Cape.
They are generally bilingual, speaking Afrikaans an... |
https://en.wikipedia.org/wiki/Dalarna | Dalarna () is a landskap (historical province) in central Sweden. English exonyms for it are Dalecarlia () and the Dales.
Dalarna adjoins Härjedalen, Hälsingland, Gästrikland, Västmanland and Värmland. It is also bordered by Norway in the west. The province's borders mostly coincide with the modern administrative Dala... |
https://en.wikipedia.org/wiki/V%C3%A4stmanland | Västmanland ( or ) is a historical Swedish province, or , in middle Sweden. It borders Södermanland, Närke, Värmland, Dalarna and Uppland.
Västmanland means "(The) Land of the Western Men", where the "western men" () were the people living west of Uppland, the core province of early Sweden.
Administration
The tradit... |
https://en.wikipedia.org/wiki/Evolutionary%20algorithm | In computational intelligence (CI), an evolutionary algorithm (EA) is a subset of evolutionary computation, a generic population-based metaheuristic optimization algorithm. An EA uses mechanisms inspired by biological evolution, such as reproduction, mutation, recombination, and selection. Candidate solutions to the op... |
https://en.wikipedia.org/wiki/Organology | Organology (from Ancient Greek () 'instrument' and (), 'the study of') is the science of musical instruments and their classifications. It embraces study of instruments' history, instruments used in different cultures, technical aspects of how instruments produce sound, and musical instrument classification. There is... |
https://en.wikipedia.org/wiki/Lignin | Lignin is a class of complex organic polymers that form key structural materials in the support tissues of most plants. Lignins are particularly important in the formation of cell walls, especially in wood and bark, because they lend rigidity and do not rot easily. Chemically, lignins are polymers made by cross-linkin... |
https://en.wikipedia.org/wiki/Extrusome | Extrusomes are membrane-bound structures in some eukaryotes which, under certain conditions, discharge their contents outside the cell. There are a variety of different types, probably not homologous, and serving various functions.
Notable extrusomes include mucocysts, which discharge a mucous mass sometimes used i... |
https://en.wikipedia.org/wiki/John%20George%20Hohman | John George Hohman (also spelled Johann Georg Hohman, and his surname sometimes misspelled as Hoffman), who was active between 1802 and 1846, was a German-American printer, book seller and compiler of collections of herbal remedies, magical healings, and charms. He immigrated to the USA from Germany in 1802, settled in... |
https://en.wikipedia.org/wiki/Nick%20Leeson | Nicholas William Leeson (born 25 February 1967) is an English former derivatives trader whose fraudulent, unauthorised and speculative trades resulted in the 1995 collapse of Barings Bank, the United Kingdom's oldest merchant bank. Leeson was convicted of financial crime in a Singapore court and served over four years ... |
https://en.wikipedia.org/wiki/Coand%C4%83%20effect | The Coandă effect ( or ) is the tendency of a fluid jet to stay attached to a convex surface. Merriam-Webster describes it as "the tendency of a jet of fluid emerging from an orifice to follow an adjacent flat or curved surface and to entrain fluid from the surroundings so that a region of lower pressure develops."
It... |
https://en.wikipedia.org/wiki/List%20of%20statistics%20articles |
0–9
1.96
2SLS (two-stage least squares) redirects to instrumental variable
3SLS – see three-stage least squares
68–95–99.7 rule
100-year flood
A
A priori probability
Abductive reasoning
Absolute deviation
Absolute risk reduction
Absorbing Markov chain
ABX test
Accelerated failure time model
Acceptable quality limit... |
https://en.wikipedia.org/wiki/Congenital%20disorder%20of%20glycosylation | A congenital disorder of glycosylation (previously called carbohydrate-deficient glycoprotein syndrome) is one of several rare inborn errors of metabolism in which glycosylation of a variety of tissue proteins and/or lipids is deficient or defective. Congenital disorders of glycosylation are sometimes known as CDG synd... |
https://en.wikipedia.org/wiki/As%20the%20World%20Turns | As the World Turns (often abbreviated as ATWT) is an American television soap opera that aired on CBS for 54 years from April 2, 1956, to September 17, 2010. Irna Phillips created As the World Turns as a sister show to her other soap opera Guiding Light. With 13,763 hours of cumulative narrative, As the World Turns has... |
https://en.wikipedia.org/wiki/Mid-range%20speaker | A mid-range speaker is a loudspeaker driver that reproduces sound in the frequency range from 250 to 2000 Hz.
Mid-range drivers are usually cone types or, less commonly, dome types, or compression horn drivers. The radiating diaphragm of a cone mid-range unit is a truncated cone, with a voice coil attached at the nec... |
https://en.wikipedia.org/wiki/Woofer | A woofer or bass speaker is a technical term for a loudspeaker driver designed to produce low frequency sounds, typically from 20 Hz up to 80 Hz. The name is from the onomatopoeic English word for a dog's deep bark, "woof" (in contrast to a tweeter, the name used for loudspeakers designed to reproduce high-frequency so... |
https://en.wikipedia.org/wiki/Covariance%20matrix | In probability theory and statistics, a covariance matrix (also known as auto-covariance matrix, dispersion matrix, variance matrix, or variance–covariance matrix) is a square matrix giving the covariance between each pair of elements of a given random vector.
Intuitively, the covariance matrix generalizes the notion ... |
https://en.wikipedia.org/wiki/Kolmogorov%27s%20zero%E2%80%93one%20law | In probability theory, Kolmogorov's zero–one law, named in honor of Andrey Nikolaevich Kolmogorov, specifies that a certain type of event, namely a tail event of independent σ-algebras, will either almost surely happen or almost surely not happen; that is, the probability of such an event occurring is zero or one.
Tai... |
https://en.wikipedia.org/wiki/Electric-field%20screening | In physics, screening is the damping of electric fields caused by the presence of mobile charge carriers. It is an important part of the behavior of charge-carrying fluids, such as ionized gases (classical plasmas), electrolytes, and charge carriers in electronic conductors (semiconductors, metals).
In a fluid, with a ... |
https://en.wikipedia.org/wiki/Timeline%20of%20quantum%20computing%20and%20communication | This is a timeline of quantum computing.
1960s
1968
Stephen Wiesner invented conjugate coding (published in ACM SIGACT News 15(1):78–88).
1970s
1970
James Park articulated the no-cloning theorem.
1973
Alexander Holevo published a paper showing that n qubits can carry more than n classical bits of information, b... |
https://en.wikipedia.org/wiki/Exponential%20growth | Exponential growth is a process that increases quantity over time. It occurs when the instantaneous rate of change (that is, the derivative) of a quantity with respect to time is proportional to the quantity itself. Described as a function, a quantity undergoing exponential growth is an exponential function of time, th... |
https://en.wikipedia.org/wiki/Green%20roof | A green roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium, planted over a waterproofing membrane. It may also include additional layers such as a root barrier and drainage and irrigation systems. Container gardens on roofs, where plants are maintain... |
https://en.wikipedia.org/wiki/Self-hosting | Self-hosting may refer to:
Self-hosting (compilers), a computer program that produces new versions of that same program
Self-hosting (web services), the practice of running and maintaining a website using a private web server
See also
Self-booting disk |
https://en.wikipedia.org/wiki/Screened%20Poisson%20equation | In physics, the screened Poisson equation is a Poisson equation, which arises in (for example) the Klein–Gordon equation, electric field screening in plasmas, and nonlocal granular fluidity in granular flow.
Statement of the equation
The equation is
where is the Laplace operator, λ is a constant that expresses the ... |
https://en.wikipedia.org/wiki/Bristol%20Zoo | Bristol Zoo was a zoo in the city of Bristol in South West England. The zoo's stated mission was to "maintain and defend" biodiversity through breeding endangered species, conserving threatened species and habitats and promoting a wider understanding of the natural world".
The mammal collection at the zoo numbered aro... |
https://en.wikipedia.org/wiki/Proto-human | Proto-human may refer to:
Archaic Homo sapiens, a loosely defined classification that includes a number of varieties of Homo
Australopithecina, a collective classification of extinct, close relatives of humans, some of which are probable ancestors of humans and early hominins
Proto-Human language, a designation of ... |
https://en.wikipedia.org/wiki/MRSA%20%28disambiguation%29 | MRSA is methicillin-resistant Staphylococcus aureus, a bacterium.
MRSA may also refer to:
MrsA (gene), for the enzyme 2-Ketoarginine methyltransferase
Metrolina Regional Scholars' Academy, Charlotte, North Carolina, US
San Alberto Airport (ICAO airport code), Costa Rica
Mat Zo (born 1990), pseudonym MRSA, British... |
https://en.wikipedia.org/wiki/Cog%20%28project%29 | Cog was a project at the Humanoid Robotics Group of the Massachusetts Institute of Technology. It was based on the hypothesis that human-level intelligence requires gaining experience from interacting with humans, like human infants do. This in turn required many interactions with humans over a long period. Because Cog... |
https://en.wikipedia.org/wiki/Crystalis | Crystalis is a 1990 action role-playing action-adventure video game produced by SNK for the Nintendo Entertainment System. The original Nintendo Entertainment System version has been re-released via the SNK 40th Anniversary Collection on Nintendo Switch, PlayStation 4, Windows, and Xbox One.
The game begins with a you... |
https://en.wikipedia.org/wiki/PowerPC%207xx | The PowerPC 7xx is a family of third generation 32-bit PowerPC microprocessors designed and manufactured by IBM and Motorola (spun off as Freescale Semiconductor bought by NXP Semiconductors). This family is called the PowerPC G3 by Apple Computer (later Apple Inc.), which introduced it on November 10, 1997. The term "... |
https://en.wikipedia.org/wiki/Ricardian%20equivalence | The Ricardian equivalence proposition (also known as the Ricardo–de Viti–Barro equivalence theorem) is an economic hypothesis holding that consumers are forward-looking and so internalize the government's budget constraint when making their consumption decisions. This leads to the result that, for a given pattern of go... |
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