id int64 580 79M | url stringlengths 31 175 | text stringlengths 9 245k | source stringlengths 1 109 | categories stringclasses 160
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|---|---|---|---|---|---|
50,723,919 | https://en.wikipedia.org/wiki/Cortinarius%20jenolanensis | Cortinarius jenolanensis is a fungus native to Australia. It was described in 2009 by Alec Wood, from a specimen collected at the Jenolan Caves on 30 April 1988. It has also been recorded from Tidbinbilla Nature Reserve in the Australian Capital Territory.
It is not closely related to the group of dark purple webcaps ... | Cortinarius jenolanensis | Biology | 251 |
25,520,865 | https://en.wikipedia.org/wiki/Index%20Filicum | Index Filicum is a discontinued series of botanical indices on ferns, started by Carl Christensen in 1906 and continued in the form of seven supplements by Christensen and other authors until 1997. As of supplement 5, the index also covered lycophytes and horsetails. There was an earlier work of the same name by Thomas... | Index Filicum | Biology | 865 |
12,684,962 | https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates%20shuffle | The Fisher–Yates shuffle is an algorithm for shuffling a finite sequence. The algorithm takes a list of all the elements of the sequence, and continually determines the next element in the shuffled sequence by randomly drawing an element from the list until no elements remain. The algorithm produces an unbiased permuta... | Fisher–Yates shuffle | Physics,Mathematics | 5,955 |
7,373,637 | https://en.wikipedia.org/wiki/Oblique%20correction | In particle physics, an oblique correction refers to a particular type of radiative correction to the electroweak sector of the Standard Model. Oblique corrections are defined in four-fermion scattering processes, ( + → + ) at the CERN Large Electron–Positron Collider. There are three classes of radiative correction... | Oblique correction | Physics | 266 |
5,717,580 | https://en.wikipedia.org/wiki/Active%20appearance%20model | An active appearance model (AAM) is a computer vision algorithm for matching a statistical model of object shape and appearance to a new image. They are built during a training phase. A set of images, together with coordinates of landmarks that appear in all of the images, is provided to the training supervisor.
The m... | Active appearance model | Engineering | 569 |
1,344,838 | https://en.wikipedia.org/wiki/AT%26T%20Hobbit | The AT&T Hobbit is a microprocessor design developed by AT&T Corporation in the early 1990s. It was based on the company's CRISP (C-language Reduced Instruction Set Processor) design resembling the classic RISC pipeline, and which in turn grew out of the C Machine design by Bell Labs of the late 1980s. All were optimiz... | AT&T Hobbit | Technology | 1,956 |
64,718,903 | https://en.wikipedia.org/wiki/SAM%20%28automotive%29 | SAM (from Samochód Amatorski Motoru; Amateur Motor Car), in Polish law, is a kind of vehicle, usually car, motorcycle or tractor made by yourself or in a workshop. It is made in a single copy, less often in a small series. It is created by a thorough alteration of a serial vehicle or by building it from scratch. A veh... | SAM (automotive) | Physics | 332 |
22,416,330 | https://en.wikipedia.org/wiki/Intramolecular%20aglycon%20delivery | Intramolecular aglycon delivery is a synthetic strategy for the construction of glycans. This approach is generally used for the formation of difficult glycosidic linkages.
Introduction
Glycosylation reactions are very important reactions in carbohydrate chemistry, leading to the synthesis of oligosaccharides, prefera... | Intramolecular aglycon delivery | Chemistry | 1,416 |
27,387,028 | https://en.wikipedia.org/wiki/Fort%20de%20Leveau | The Fort de Leveau, also known as Fort Schouller, is located in the commune of Feignies, France. It is part of the fortifications of Maubeuge, located to the northwest of the city, overlooking the railroad to Mons. The Séré de Rivières system fort was built 1882–1884, one of six forts built at the time. It is maintaine... | Fort de Leveau | Engineering | 763 |
558,379 | https://en.wikipedia.org/wiki/Dirham | The dirham, dirhem or drahm is a unit of currency and of mass. It is the name of the currencies of Morocco, the United Arab Emirates and Armenia, and is the name of a currency subdivision in Jordan, Libya, Qatar and Tajikistan. It was historically a silver coin.
Unit of mass
The dirham was a unit of mass used across N... | Dirham | Physics,Mathematics | 1,084 |
4,682,498 | https://en.wikipedia.org/wiki/Semi-empirical%20quantum%20chemistry%20method | Semi-empirical quantum chemistry methods are based on the Hartree–Fock formalism, but make many approximations and obtain some parameters from empirical data. They are very important in computational chemistry for treating large molecules where the full Hartree–Fock method without the approximations is too expensive. T... | Semi-empirical quantum chemistry method | Chemistry | 794 |
10,946,060 | https://en.wikipedia.org/wiki/Jun%20dimerization%20protein | Jun dimerization protein 2 (JUNDM2) is a protein that in humans is encoded by the JDP2 gene. The Jun dimerization protein is a member of the AP-1 family of transcription factors.
JDP 2 was found by a Sos-recruitment system, to dimerize with c-Jun to repress AP-1-mediated activation. It was later identified by the yea... | Jun dimerization protein | Chemistry,Biology | 2,525 |
10,670,746 | https://en.wikipedia.org/wiki/Peroxin-7 | Peroxin-7 is a receptor associated with Refsum's disease and rhizomelic chondrodysplasia punctata type 1.
See also
Peroxin
External links
GeneReviews/NCBI/NIH/UW entry on Refsum Disease
GeneReviews/NIH/NCBI/UW entry on Rhizomelic Chondrodysplasia Punctata Type 1 | Peroxin-7 | Chemistry,Biology | 91 |
3,879,598 | https://en.wikipedia.org/wiki/Tension%20%28physics%29 | Tension is the pulling or stretching force transmitted axially along an object such as a string, rope, chain, rod, truss member, or other object, so as to stretch or pull apart the object. In terms of force, it is the opposite of compression. Tension might also be described as the action-reaction pair of forces acting ... | Tension (physics) | Physics | 1,192 |
69,828,148 | https://en.wikipedia.org/wiki/Desmethylsibutramine | Desmethylsibutramine (also known as norsibutramine and BTS-54354) is an active metabolite of the anorectic drug sibutramine. It is a more potent monoamine reuptake inhibitor than sibutramine and has been sold as an ingredient in weight loss products sold as dietary supplements, along with related compounds such as the ... | Desmethylsibutramine | Chemistry | 184 |
20,719,072 | https://en.wikipedia.org/wiki/Ice%20cloud | An ice cloud is a colloid of ice particles dispersed in air. The term has been used to refer to clouds of both water ice and carbon dioxide ice on Mars.
Such clouds can be sufficiently large and dense to cast shadows on the Martian surface.
Cirrus and noctilucent clouds on Earth contain ice particles.
See also
Ice... | Ice cloud | Astronomy | 88 |
24,798,057 | https://en.wikipedia.org/wiki/Thymidine%20diphosphate%20glucose | Thymidine diphosphate glucose (often abbreviated dTDP-glucose or TDP-glucose) is a nucleotide-linked sugar consisting of deoxythymidine diphosphate linked to glucose. It is the starting compound for the syntheses of many deoxysugars.
Biosynthesis
DTDP-glucose is produced by the enzyme glucose-1-phosphate thymidylyltr... | Thymidine diphosphate glucose | Chemistry,Biology | 243 |
25,133,016 | https://en.wikipedia.org/wiki/Wiki%20hosting%20service | A wiki hosting service, or wiki farm, is a server or an array of servers that offers users tools to simplify the creation and development of individual, independent wikis.
Prior to wiki farms, someone who wanted to operate a wiki had to install the software and manage the server(s) themselves. With a wiki farm, the fa... | Wiki hosting service | Technology | 475 |
39,032,561 | https://en.wikipedia.org/wiki/Design-Oriented%20Programming | Design-oriented programming is a way to author computer applications using a combination of text, graphics, and style elements in a unified code-space. The goal is to improve the experience of program writing for software developers, boost accessibility, and reduce eye-strain. Good design helps computer programmers to ... | Design-Oriented Programming | Technology,Engineering | 191 |
58,100,243 | https://en.wikipedia.org/wiki/Spider%20shot | Spider shot was a variation of chain shot with multiple chains.
See also
Round shot
Heated shot
Canister shot
Grapeshot
References
Projectiles
Artillery ammunition
Balls
Chains
Metallic objects | Spider shot | Physics | 34 |
8,612,835 | https://en.wikipedia.org/wiki/Kluyveromyces%20marxianus | Kluyveromyces marxianus in ascomycetous yeast and member of the genus, Kluyveromyces. It is the sexual stage (teleomorph) of Atelosaccharomyces pseudotropicalis also known as Candida kefyr. This species has a homothallic mating system and is often isolated from dairy products.
History
Taxonomy
This species was first ... | Kluyveromyces marxianus | Biology | 1,568 |
4,139,340 | https://en.wikipedia.org/wiki/Federation%20of%20German%20Scientists | The Federation of German Scientists - VDW (Vereinigung Deutscher Wissenschaftler e. V.) is a German non-governmental organization.
History
Since its founding 1959 by Carl Friedrich von Weizsäcker, Otto Hahn, Max Born and further prominent nuclear scientists, known as Göttinger 18, who had previously publicly declared... | Federation of German Scientists | Technology | 720 |
37,868,550 | https://en.wikipedia.org/wiki/C36H22O18 | {{DISPLAYTITLE:C36H22O18}}
The molecular formula C36H22O18 (molar mass: 742.52 g/mol, exact mass: 742.0806128 u) may refer to:
Dieckol, an eckol-type phlorotannin
6,6'-Bieckol, an eckol-type phlorotannin
8,8′-Bieckol, an eckol-type phlorotannin | C36H22O18 | Chemistry | 111 |
50,769,242 | https://en.wikipedia.org/wiki/Clean%20ring | In mathematics, a clean ring is a ring in which every element can be written as the sum of a unit and an idempotent. A ring is a local ring if and only if it is clean and has no idempotents other than 0 and 1. The endomorphism ring of a continuous module is a clean ring. Every clean ring is an exchange ring. A matrix r... | Clean ring | Mathematics | 94 |
42,071,787 | https://en.wikipedia.org/wiki/Indira%20Paryavaran%20Bhawan | Indira Paryavaran Bhawan is India's first on-site net-zero building located in New Delhi, India. The building houses the Ministry of Environment, Forest and Climate Change (MoEFCC) accommodating three ministers and their offices along with about 600 officials. The building, designed and constructed by the Central Publ... | Indira Paryavaran Bhawan | Engineering,Environmental_science | 1,586 |
4,444,657 | https://en.wikipedia.org/wiki/Animal%20repellent | An animal repellent consists of any object or method made with the intention of keeping animals away from personal items as well as food, plants or yourself. Plants and other living organisms naturally possess a special ability to emit chemicals known as semiochemicals as a way to defend themselves from predators. Hum... | Animal repellent | Chemistry,Biology | 877 |
69,680,149 | https://en.wikipedia.org/wiki/Dysprosium%20phosphide | Dysprosium phosphide is an inorganic compound of dysprosium and phosphorus with the chemical formula DyP.
Synthesis
The compound can be obtained by the reaction of phosphorus and dysprosium at high temperature.
4 Dy + P4 → 4 DyP
Physical properties
DyP has a NaCl structure (a=5.653 Å), where dysprosium is +3 valence.... | Dysprosium phosphide | Physics,Chemistry,Materials_science,Engineering | 172 |
42,013,569 | https://en.wikipedia.org/wiki/St.%20Johns%20Racquet%20Center | Portland Tennis & Education (formally St. Johns Racquet Center) offers a variety of classes, drills, mixers, & private lessons for tennis & pickleball players of all levels. As a public facility, we welcome everyone. Our court fees are a flat rate that include ball machine access & racquet rental at no extra cost! Racq... | St. Johns Racquet Center | Engineering | 610 |
51,745,258 | https://en.wikipedia.org/wiki/Isolation%20to%20facilitate%20abuse | Isolation (physical, social or emotional) is often used to facilitate power and control over someone for an abusive purpose. This applies in many contexts such as workplace bullying, elder abuse, domestic abuse, child abuse, and cults.
Isolation reduces the opportunity of the abused to be rescued or escape from the ab... | Isolation to facilitate abuse | Biology | 385 |
48,782,005 | https://en.wikipedia.org/wiki/Astrophysical%20fluid%20dynamics | Astrophysical fluid dynamics is a branch of modern astronomy which deals with the motion of fluids in outer space using fluid mechanics, such as those that make up the Sun and other stars. The subject covers the fundamentals of fluid mechanics using various equations, such as continuity equations, the Navier–Stokes equ... | Astrophysical fluid dynamics | Physics,Chemistry,Astronomy,Engineering | 905 |
5,822,644 | https://en.wikipedia.org/wiki/Basic%20helix-loop-helix%20leucine%20zipper%20transcription%20factors | Basic helix-loop-helix leucine zipper transcription factors are, as their name indicates, transcription factors containing both Basic helix-loop-helix and leucine zipper motifs.
Examples include Microphthalmia-associated transcription factor and Sterol regulatory element binding protein (SREBP).
External links
Gen... | Basic helix-loop-helix leucine zipper transcription factors | Chemistry,Biology | 67 |
342,086 | https://en.wikipedia.org/wiki/War%20of%20the%20currents | The war of the currents was a series of events surrounding the introduction of competing electric power transmission systems in the late 1880s and early 1890s. It grew out of two lighting systems developed in the late 1870s and early 1880s; arc lamp street lighting running on high-voltage alternating current (AC), and ... | War of the currents | Physics,Engineering | 9,388 |
752,310 | https://en.wikipedia.org/wiki/RCA%20Dome | The RCA Dome (originally Hoosier Dome) was a domed stadium in Indianapolis. It was the home of the Indianapolis Colts NFL franchise for 24 seasons (1984–2007).
It was completed at a cost of $77.5 million, as part of the Indiana Convention Center, with the costs split between private and public money. The largest crow... | RCA Dome | Engineering | 1,576 |
1,203,002 | https://en.wikipedia.org/wiki/Crew%20resource%20management | Crew resource management or cockpit resource management (CRM) is a set of training procedures for use in environments where human error can have devastating effects. CRM is primarily used for improving aviation safety and focuses on interpersonal communication, leadership, and decision making in aircraft cockpits. Its... | Crew resource management | Engineering | 2,772 |
36,505,783 | https://en.wikipedia.org/wiki/Anaikoddai%20seal | The Anaikoddai seal is a soapstone seal that was found in Anaikoddai, Sri Lanka during archeological excavations of a megalithic burial site by a team of researchers from the University of Jaffna. The seal was originally part of a signet ring and contains one of the oldest Brahmi inscriptions mixed with megalithic graf... | Anaikoddai seal | Mathematics | 363 |
78,259,584 | https://en.wikipedia.org/wiki/Facer.io | Facer is one of the largest watch face platforms for Apple Watch, Wear OS, and Tizen-based smartwatches, developed by Los Angeles-based Little Labs, Inc. It allows users to select from over 500,000 premade watch faces or create custom designs through its web-based editor.
Overview
Facer was launched in 2015 as a pla... | Facer.io | Technology | 298 |
72,031,127 | https://en.wikipedia.org/wiki/Lauren%20B.%20Hitchcock | Lauren Blakely Hitchcock (March 18, 1900 – October 15, 1972) was a chemical engineer and early opponent of air pollution.
Hitchcock was born in Paris to Frank Lauren Hitchcock, a mathematician and physicist, and Margaret Johnson Blakely, and was raised in Belmont, Massachusetts. He received his undergraduate (1920), m... | Lauren B. Hitchcock | Chemistry,Engineering | 223 |
19,732,690 | https://en.wikipedia.org/wiki/John%20Tyler | John Tyler (March 29, 1790 – January 18, 1862) was the tenth president of the United States, serving from 1841 to 1845, after briefly holding office as the tenth vice president in 1841. He was elected vice president on the 1840 Whig ticket with President William Henry Harrison, succeeding to the presidency following Ha... | John Tyler | Chemistry | 16,970 |
3,868,748 | https://en.wikipedia.org/wiki/Table%20of%20Newtonian%20series | In mathematics, a Newtonian series, named after Isaac Newton, is a sum over a sequence written in the form
where
is the binomial coefficient and is the falling factorial. Newtonian series often appear in relations of the form seen in umbral calculus.
List
The generalized binomial theorem gives
A proof for this... | Table of Newtonian series | Mathematics | 404 |
45,150,748 | https://en.wikipedia.org/wiki/Customer%20knowledge | Customer knowledge (CK) is the combination of experience, value and insight information which is needed, created and absorbed during the transaction and exchange between the customers and enterprise.
Campbell (2003) defines customer knowledge as: "organized and structured information about the customer as a result of s... | Customer knowledge | Technology | 668 |
1,741,642 | https://en.wikipedia.org/wiki/1%2C2-rearrangement | A 1,2-rearrangement or 1,2-migration or 1,2-shift or Whitmore 1,2-shift is an organic reaction where a substituent moves from one atom to another atom in a chemical compound. In a 1,2 shift the movement involves two adjacent atoms but moves over larger distances are possible. In the example below the substituent R move... | 1,2-rearrangement | Chemistry | 926 |
34,306,243 | https://en.wikipedia.org/wiki/Biodegradation%20%28journal%29 | Biodegradation is a peer-reviewed scientific journal covering biotransformation, mineralization, detoxification, recycling, amelioration or treatment of chemicals or waste materials by naturally occurring microbial strains, microbial associations or recombinant organisms.
According to the Journal Citation Reports, the... | Biodegradation (journal) | Chemistry,Environmental_science | 115 |
68,498,249 | https://en.wikipedia.org/wiki/Civilian%20victimization | Civilian victimization is the intentional use of violence against noncombatants in a conflict. It includes both lethal forms of violence (such as killings), as well as non-lethal forms of violence such as torture, forced expulsion, and rape. According to this definition, civilian victimization is only a subset of harm ... | Civilian victimization | Biology | 2,560 |
77,944,608 | https://en.wikipedia.org/wiki/IC%204687 | IC 4687 known as IRAS 18093-5744 or F18093-5744, is an Sb spiral galaxy located in the constellation of Pavo. It is located 250 million light years from Earth and was discovered by Royal Harwood Frost on August 1, 1904, who described the object "as brighter middle with magnitude of 14. It has a surface brightness of 12... | IC 4687 | Astronomy | 490 |
16,413,876 | https://en.wikipedia.org/wiki/Biotechnology%20consulting | Biotechnology consulting (or biotech consulting) refers to the practice of assisting organizations involved in research and commercialization of biotechnology in improving their methods and efficiency of production, and approaches to R&D. This assistance is usually provided in the form of specialized technological advi... | Biotechnology consulting | Engineering,Biology | 353 |
22,819,905 | https://en.wikipedia.org/wiki/Acaulospora%20polonica | Acaulospora polonica is a species of fungus in the family Acaulosporaceae. It forms arbuscular mycorrhiza and vesicles in roots. Found in Poland growing under Thuja occidentalis, it was described as a new species in 1988.
References
Diversisporales
Fungi described in 1988
Fungi of Europe
Fungus species | Acaulospora polonica | Biology | 76 |
3,241,848 | https://en.wikipedia.org/wiki/Chan%E2%80%93Paton%20factor | In theoretical physics, the Chan–Paton factor (named after Jack E. Paton and Hong-Mo Chan) is a multivalued index associated with the endpoints of an open string. An open string can be interpreted as a flux tube connecting a quark and its antiparticle. The two Chan–Paton factors make the string transform as a tensor un... | Chan–Paton factor | Astronomy | 188 |
70,688,323 | https://en.wikipedia.org/wiki/Auricularia%20mesenterica | Auricularia mesenterica, commonly known as the tripe fungus, is a species of fungus in the family Auriculariaceae. Basidiocarps (fruit bodies) are gelatinous and typically formed in coalescing tiers on stumps and logs. They are partly pileate, with hirsute, zoned caps, and partly resupinate, with smooth to wrinkled und... | Auricularia mesenterica | Biology | 746 |
72,463,442 | https://en.wikipedia.org/wiki/Amanita%20flavipes | Amanita flavipes is a species of Amanita found in oak and conifer forest of China, India, Japan, Pakistan, and South Korea.
References
External links
flavipes
Fungi of Asia
Fungi described in 1933
Fungus species | Amanita flavipes | Biology | 50 |
22,603,423 | https://en.wikipedia.org/wiki/Terrabacteria | Terrabacteria is a taxon containing approximately two-thirds of prokaryote species, including those in the gram positive phyla (Actinomycetota and Bacillota) as well as the phyla "Cyanobacteria", Chloroflexota, and Deinococcota.
It derives its name (terra = "land") from the evolutionary pressures of life on land. Ter... | Terrabacteria | Biology | 901 |
67,558,499 | https://en.wikipedia.org/wiki/Bovhyaluronidase%20azoximer | Bovhyaluronidase azoximer, sold under the brand name Longidaze, is a conjugate of proteolytic enzyme hyaluronidase with high- molecular weight copolymer that forms a component of combination therapy regimens for treatment and prevention of diseases associated with connective tissue hyperplasia.
The most frequently obse... | Bovhyaluronidase azoximer | Chemistry,Biology | 1,436 |
30,332,244 | https://en.wikipedia.org/wiki/Bandicam | Bandicam (stylized as BANDICAM) is a closed-source screen capture and screen recording software originally developed by Bandisoft and later by Bandicam Company that can take screenshots or record screen changes.
Bandicam consists of three main modes. One is the Screen Recording mode, which can be used for recording a ... | Bandicam | Technology | 445 |
14,204,445 | https://en.wikipedia.org/wiki/Mazur%20manifold | In differential topology, a branch of mathematics, a Mazur manifold is a contractible, compact, smooth four-dimensional manifold-with-boundary which is not diffeomorphic to the standard 4-ball. Usually these manifolds are further required to have a handle decomposition with a single -handle, and a single -handle; othe... | Mazur manifold | Mathematics | 640 |
77,347,365 | https://en.wikipedia.org/wiki/Disitamab%20vedotin | Disitamab vedotin (trade name Aidixi) is a drug for the treatment of various types of solid tumors. It is an antibody-drug conjugate that consists of an immunoglobulin G1 antibody that is linked to the antitumor agent vedotin (monomethyl auristatin E).
History
In China, disitamab vedotin was approved in 2021 for the... | Disitamab vedotin | Biology | 192 |
318,598 | https://en.wikipedia.org/wiki/Paul%20Halmos | Paul Richard Halmos (; 3 March 3 1916 – 2 October 2006) was a Hungarian-born American mathematician and probabilist who made fundamental advances in the areas of mathematical logic, probability theory, operator theory, ergodic theory, and functional analysis (in particular, Hilbert spaces). He was also recognized as a ... | Paul Halmos | Mathematics | 1,411 |
73,295,978 | https://en.wikipedia.org/wiki/Burnt%20Village | Burnt village is an oil-on-canvas painting by Finnish painter Albert Edelfelt completed in 1879.
The painting depicts an imaginary scene from the time of the Cudgel War of 1596–1597, a peasant uprising in Finland, which was then part of the Kingdom of Sweden. In the painting, a Finnish peasant family has fled their ho... | Burnt Village | Engineering | 154 |
27,197,456 | https://en.wikipedia.org/wiki/A%20Passage%20to%20Infinity | A Passage to Infinity: Medieval Indian Mathematics from Kerala and Its Impact is a 2009 book by George Gheverghese Joseph chronicling the social and mathematical origins of the Kerala school of astronomy and mathematics. The book discusses the highlights of the achievements of Kerala school and also analyses the hypot... | A Passage to Infinity | Astronomy | 298 |
21,500,262 | https://en.wikipedia.org/wiki/Electronic%20document%20and%20records%20management%20system | Electronic document and records management system (EDRMS) is a type of content management system and refers to the combined technologies of document management and records management systems as an integrated system.
Use
Typically, systems consider a document or file to be a work-in-progress until it has undergone rev... | Electronic document and records management system | Technology | 345 |
76,573,038 | https://en.wikipedia.org/wiki/PHL%205038 | PHL 5038AB (or just PHL 5038) is a binary system consisting out of a white dwarf and a brown dwarf on a wide orbit. The system is 240 light years (74 parsec) distant from earth.
The white dwarf PHL 5038A was discovered in 2006 in data from the Sloan Digital Sky Survey and the brown dwarf companion was discovered in 20... | PHL 5038 | Astronomy | 804 |
6,432 | https://en.wikipedia.org/wiki/Caelum | Caelum is a faint constellation in the southern sky, introduced in the 1750s by Nicolas Louis de Lacaille and counted among the 88 modern constellations. Its name means "chisel" in Latin, and it was formerly known as Caelum Sculptorium ("Engraver's Chisel"); it is a rare word, unrelated to the far more common Latin ca... | Caelum | Astronomy | 1,962 |
344,542 | https://en.wikipedia.org/wiki/Multiplicative%20order | In number theory, given a positive integer n and an integer a coprime to n, the multiplicative order of a modulo n is the smallest positive integer k such that .
In other words, the multiplicative order of a modulo n is the order of a in the multiplicative group of the units in the ring of the integers modulo n.
The ... | Multiplicative order | Mathematics | 549 |
68,377,413 | https://en.wikipedia.org/wiki/Near-field%20radiative%20heat%20transfer | Near-field radiative heat transfer (NFRHT) is a branch of radiative heat transfer which deals with situations for which the objects and/or distances separating objects are comparable or smaller in scale or to the dominant wavelength of thermal radiation exchanging thermal energy. In this regime, the assumptions of geom... | Near-field radiative heat transfer | Physics,Chemistry,Engineering | 813 |
16,231,138 | https://en.wikipedia.org/wiki/Shilov%20system | The Shilov system is a classic example of catalytic C-H bond activation and oxidation which preferentially activates stronger C-H bonds over weaker C-H bonds for an overall partial oxidation.
Overview
The Shilov system was discovered by Alexander E. Shilov in 1969-1972 while investigating H/D exchange between isotopo... | Shilov system | Chemistry | 673 |
66,678,699 | https://en.wikipedia.org/wiki/Heinz%20Nixdorf%20MuseumsForum | The Heinz Nixdorf MuseumsForum (HNF) in Paderborn, Germany, is a computer museum named after the Paderborn computer pioneer and entrepreneur Heinz Nixdorf.
History
In 1977, Heinz Nixdorf received numerous gifts in the form of historic office machines at the celebrations for the company anniversary of 25 years of Nixdo... | Heinz Nixdorf MuseumsForum | Technology | 488 |
61,981,734 | https://en.wikipedia.org/wiki/Germanium%28II%29%20dicationic%20complexes | Ge(II) dicationic complexes refer to coordination compounds of germanium with a +2 formal oxidation state, and a +2 charge on the overall complex. In some of these coordination complexes, the coordination is strongly ionic, localizing a +2 charge on Ge, while in others the bonding is more covalent, delocalizing the cat... | Germanium(II) dicationic complexes | Chemistry | 2,673 |
41,405,104 | https://en.wikipedia.org/wiki/Torus%20action | In algebraic geometry, a torus action on an algebraic variety is a group action of an algebraic torus on the variety. A variety equipped with an action of a torus T is called a T-variety. In differential geometry, one considers an action of a real or complex torus on a manifold (or an orbifold).
A normal algebraic var... | Torus action | Mathematics | 548 |
23,579,534 | https://en.wikipedia.org/wiki/C19H24N2O4 | {{DISPLAYTITLE:C19H24N2O4}}
The molecular formula C19H24N2O4 (molar mass: 344.40 g/mol, exact mass: 344.1736 u) may refer to:
Arformoterol
Formoterol
Tolamolol | C19H24N2O4 | Chemistry | 65 |
1,464,418 | https://en.wikipedia.org/wiki/COLLADA | COLLADA (for 'collaborative design activity') is an interchange file format for interactive 3D applications. It is managed by the nonprofit technology consortium, the Khronos Group, and has been adopted by ISO as a publicly available specification, ISO/PAS 17506.
COLLADA defines an open standard XML schema for exchang... | COLLADA | Technology | 925 |
37,689,732 | https://en.wikipedia.org/wiki/International%20Institute%20of%20Air%20and%20Space%20Law | The International Institute of Air and Space Law (IIASL) is a leading research and teaching institution. It specialises in legal and policy issues for aviation and space activities. It forms part of the Leiden Law School at Leiden University.
The institute co-operates with many sister institutions and maintains cont... | International Institute of Air and Space Law | Astronomy | 249 |
323,705 | https://en.wikipedia.org/wiki/Newman%E2%80%93Shanks%E2%80%93Williams%20prime | In mathematics, a Newman–Shanks–Williams prime (NSW prime) is a prime number p which can be written in the form
NSW primes were first described by Morris Newman, Daniel Shanks and Hugh C. Williams in 1981 during the study of finite simple groups with square order.
The first few NSW primes are 7, 41, 239, 9369319, 630... | Newman–Shanks–Williams prime | Mathematics | 200 |
73,900,375 | https://en.wikipedia.org/wiki/Angela%20Schoellig | Angela P. Schoellig is a German computer scientist whose research involves the application of machine learning to the control theory of robot motion, especially for quadcopters and other flying devices. She is an Alexander von Humboldt Professor for Robotics and Artificial Intelligence at the Technical University of Mu... | Angela Schoellig | Engineering | 334 |
28,149,071 | https://en.wikipedia.org/wiki/Maxwell%27s%20thermodynamic%20surface | Maxwell’s thermodynamic surface is an 1874 sculpture made by Scottish physicist James Clerk Maxwell (1831–1879). This model provides a three-dimensional space of the various states of a fictitious substance with water-like properties. This plot has coordinates volume (x), entropy (y), and energy (z). It was based on ... | Maxwell's thermodynamic surface | Physics,Chemistry,Mathematics | 1,046 |
860,507 | https://en.wikipedia.org/wiki/Centered%20polygonal%20number | In mathematics, the centered polygonal numbers are a class of series of figurate numbers, each formed by a central dot, surrounded by polygonal layers of dots with a constant number of sides. Each side of a polygonal layer contains one more dot than each side in the previous layer; so starting from the second polygonal... | Centered polygonal number | Mathematics | 1,008 |
22,166,915 | https://en.wikipedia.org/wiki/McCormack%20reaction | The McCormack reaction is a method for the synthesis of organophosphorus compounds. In this reaction, a 1,3-diene and a source of R2P+ are combined to give phospholenium cation. The reaction is named after W. B. McCormack, a research chemist at duPont.
An illustrative reaction involves phenyldichlorophosphine and isop... | McCormack reaction | Chemistry | 152 |
61,729,563 | https://en.wikipedia.org/wiki/Amazon%20Scout | Amazon Scout is a 6 wheeled delivery robot used to deliver packages for multinational company Amazon. Amazon Scout originally debuted on January 23, 2019, delivering packages to Amazon customers in Snohomish County, Washington. Amazon scouts move on sidewalks, at a walking pace. In August, 2019, the robots started deli... | Amazon Scout | Physics,Technology | 614 |
68,226,603 | https://en.wikipedia.org/wiki/Halcon%20process | In chemistry, the Halcon process refers to technology for the production of propylene oxide by oxidation of propylene with tert-butyl hydroperoxide. The reaction requires metal catalysts, which typically contain molybdenum:
(CH3)3COOH + CH2=CHCH3 → (CH3)3COH + CH2OCHCH3
The byproduct tert-butanol is recycled or... | Halcon process | Chemistry | 251 |
7,887,563 | https://en.wikipedia.org/wiki/Black%20triangle%20%28pharmacovigilance%29 | A black triangle appearing after the trade name of a British medicine (or vaccine) indicates that the medication is new to the market, or that an existing medicine (or vaccine) is being used for a new reason or by a new route of administration.
Examples of how it might appear:
NewDrugTradeName▼
NewDrugTradeName▼
The ... | Black triangle (pharmacovigilance) | Chemistry,Biology | 298 |
16,065,426 | https://en.wikipedia.org/wiki/Roe%20solver | The Roe approximate Riemann solver, devised by Phil Roe, is an approximate Riemann solver based on the Godunov scheme and involves finding an estimate for the intercell numerical flux or Godunov flux at the interface between two computational cells and , on some discretised space-time computational domain.
Roe schem... | Roe solver | Physics,Mathematics | 309 |
22,269,613 | https://en.wikipedia.org/wiki/Prp24 | Prp24 (precursor RNA processing, gene 24) is a protein part of the pre-messenger RNA splicing process and aids the binding of U6 snRNA to U4 snRNA during the formation of spliceosomes. Found in eukaryotes from yeast to E. coli, fungi, and humans, Prp24 was initially discovered to be an important element of RNA splicing... | Prp24 | Chemistry,Biology | 987 |
53,511,508 | https://en.wikipedia.org/wiki/International%20Beacon%20Project | The International Beacon Project (IBP) is a worldwide network of radio propagation beacons. It consists of 18 continuous wave (CW) beacons operating on five designated frequencies in the high frequency band. The IBP beacons provide a means of assessing the prevailing ionospheric signal propagation characteristics to bo... | International Beacon Project | Physics | 1,501 |
61,644,953 | https://en.wikipedia.org/wiki/Orbital%20Insight | Orbital Insight is a Palo Alto, California-based geospatial analytics company. The company analyzes satellite, drone, balloon and other unmanned aerial vehicle images, including cell phone geolocation data, to study a range of human activity, and provides business and other strategic insights from the data.
James Cra... | Orbital Insight | Physics | 1,232 |
65,466,889 | https://en.wikipedia.org/wiki/Crude%20oil%20stabilisation | Crude oil stabilisation (or stabilization) is a partial distillation process that renders crude oil suitable for storage in atmospheric tanks, or of a quality suitable for sales or pipeline transportation. Stabilization is achieved by subjecting ‘live’ crude to temperature and pressure conditions in a fractionation ves... | Crude oil stabilisation | Chemistry,Engineering | 849 |
37,537,157 | https://en.wikipedia.org/wiki/Lithium%20tungstate | Lithium tungstate is the inorganic compound with the formula Li2WO4. It is a white solid that is soluble in water. The compound is one of the several orthotungstates, compounds that feature the tetrahedral WO42− anion.
Structure
The salt consists of tetrahedrally coordinated Li and W centres bridged by oxides. The W-O... | Lithium tungstate | Chemistry | 335 |
8,908,470 | https://en.wikipedia.org/wiki/Conodont%20Alteration%20Index | The Conodont Alteration Index (CAI) is used to estimate the maximum temperature reached by a sedimentary rock using thermal alteration of conodont fossils. Conodonts in fossiliferous carbonates are prepared by dissolving the matrix with weak acid, since the conodonts are composed of apatite and thus do not dissolve as ... | Conodont Alteration Index | Chemistry | 264 |
16,481,963 | https://en.wikipedia.org/wiki/Lefschetz%20duality | In mathematics, Lefschetz duality is a version of Poincaré duality in geometric topology, applying to a manifold with boundary. Such a formulation was introduced by , at the same time introducing relative homology, for application to the Lefschetz fixed-point theorem. There are now numerous formulations of Lefschetz du... | Lefschetz duality | Mathematics | 265 |
56,209,806 | https://en.wikipedia.org/wiki/Datroniella%20minuta | Datroniella minuta is a species of fungus in the family Polyporaceae. It was described in 2016 by mycologists Carla Rejane Sousa de Lira and Leif Ryvarden from collections made in northeast Brazil. The fungus is characterized by its tiny, cup-shaped fruit bodies that are reddish to dark brown, and microscopically by it... | Datroniella minuta | Biology | 111 |
164,501 | https://en.wikipedia.org/wiki/Nimber | In mathematics, the nimbers, also called Grundy numbers, are introduced in combinatorial game theory, where they are defined as the values of heaps in the game Nim. The nimbers are the ordinal numbers endowed with nimber addition and nimber multiplication, which are distinct from ordinal addition and ordinal multiplic... | Nimber | Mathematics | 1,646 |
2,865,864 | https://en.wikipedia.org/wiki/List%20of%20unsolved%20problems%20in%20chemistry | This is a list of unsolved problems in chemistry. Problems in chemistry are considered unsolved when an expert in the field considers it unsolved or when several experts in the field disagree about a solution to a problem.
Physical chemistry problems
Can the transition temperature of high-temperature superconductors... | List of unsolved problems in chemistry | Chemistry | 784 |
36,647,269 | https://en.wikipedia.org/wiki/Newar%20window | Newār window (; newār jhyāl) refers to the elaborately carved wooden window which is the distinguishing feature of traditional Newa architecture. The ornate windows have been described as a symbol of Newar culture and artistry. The level of design and carving of the Newar window reached its peak in the mid-18th century... | Newar window | Technology,Engineering | 515 |
55,062,864 | https://en.wikipedia.org/wiki/EZCast | EZCast is a line of digital media players, built by Actions Microelectronics, that allows users to mirror media content from smart devices, including mobile devices, personal computers, and project to high-definition televisions.
History
The first generation of EZCast was developed in 2013, shipped 1 million units wit... | EZCast | Technology | 242 |
3,559,472 | https://en.wikipedia.org/wiki/Axiomatic%20quantum%20field%20theory | Axiomatic quantum field theory is a mathematical discipline which aims to describe quantum field theory in terms of rigorous axioms. It is strongly associated with functional analysis and operator algebras, but has also been studied in recent years from a more geometric and functorial perspective.
There are two main ... | Axiomatic quantum field theory | Physics | 450 |
35,539,120 | https://en.wikipedia.org/wiki/Mueterschwanderberg | Mueterschwanderberg (also Mueterschwandenberg) is a ridge forming the southern shore of Alpnachersee, just northwest of Stanserhorn and west of the village of Ennetmoos, Nidwalden, Switzerland.
Its peak is at an elevation of 860 m (some 425 m above the lake surface).
The peak is known as Drachenflue (Drachenfluh), wi... | Mueterschwanderberg | Engineering | 221 |
41,650,491 | https://en.wikipedia.org/wiki/Google%20Free%20Zone | Google Free Zone was a global initiative undertaken by the Internet company Google in collaboration with mobile phone-based Internet providers, whereby the providers waive data (bandwidth) charges (also known as zero-rate) for accessing select Google products such as Google Search, Gmail, and Google+. In order to use t... | Google Free Zone | Technology,Engineering | 351 |
46,560,320 | https://en.wikipedia.org/wiki/Joint%20Organisations%20Data%20Initiative | The Joint Organisations Data Initiative (JODI) is an international collaboration to improve the availability and reliability of data on petroleum and natural gas. First named the "Joint Oil Data Exercise", the collaboration was launched in April 2001 with six international organisations: Asia-Pacific Economic Cooperati... | Joint Organisations Data Initiative | Engineering,Environmental_science | 194 |
66,572,904 | https://en.wikipedia.org/wiki/TOI-561 | TOI-561 is an old, metal-poor, Sun-like star, known to have multiple small planets.
It is an orange dwarf, estimated to be 10.5 billion years old, and about 79% the mass and 85% the radius of Sol, Earth's sun. It is located in the constellation Sextans, near the border with Leo.
In January 2021, a team led by Lauren W... | TOI-561 | Astronomy | 1,749 |
36,221,385 | https://en.wikipedia.org/wiki/HD%2097658 | HD 97658 is a star with an exoplanetary companion in the equatorial constellation of Leo. The star is too dim to be seen with the naked eye, having an apparent visual magnitude of 7.76. It is located at a distance of 70 light years based on parallax, but is slowly drifting closer with a radial velocity of −1.6 km/s.
T... | HD 97658 | Astronomy | 771 |
1,241,529 | https://en.wikipedia.org/wiki/Spacebus | Spacebus is a satellite bus produced at the Cannes Mandelieu Space Center in France by Thales Alenia Space. Spacebuses are typically used for geostationary communications satellites, and seventy-four have been launched since development started in the 1980s. Spacebus was originally produced by Aérospatiale and later pa... | Spacebus | Engineering | 2,405 |
33,042,691 | https://en.wikipedia.org/wiki/Op%20amp%20integrator | The operational amplifier integrator is an electronic integration circuit. Based on the operational amplifier (op-amp), it performs the mathematical operation of integration with respect to time; that is, its output voltage is proportional to the input voltage integrated over time.
Applications
The integrator circuit ... | Op amp integrator | Engineering | 1,386 |
43,355,620 | https://en.wikipedia.org/wiki/Musket%20Ball%20Cluster | The Musket Ball Cluster (DLSCL J0916.2+2951) is a galaxy cluster that exhibits separation between its baryonic matter and dark matter components. The cluster is a recent merger of two galaxy clusters. It is named after the Bullet Cluster, as it is a slower collision, and older than the Bullet Cluster. This cluster is f... | Musket Ball Cluster | Astronomy | 322 |
37,177,771 | https://en.wikipedia.org/wiki/Psi%20Hydrae | Psi Hydrae (ψ Hydrae) is a star system in the equatorial constellation of Hydra. Based upon an annual parallax shift of 14.09 mas as seen from Earth, it is located around 231 light years away from the Sun. It is faintly visible to the naked eye with an apparent magnitude of 4.97.
System
This is a probable astrometric ... | Psi Hydrae | Astronomy | 243 |
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