id int64 580 79M | url stringlengths 31 175 | text stringlengths 9 245k | source stringlengths 1 109 | categories stringclasses 160
values | token_count int64 3 51.8k |
|---|---|---|---|---|---|
5,063,927 | https://en.wikipedia.org/wiki/Sodium%20cyanoborohydride | Sodium cyanoborohydride is a chemical compound with the formula . It is a colourless salt used in organic synthesis for chemical reduction including that of imines and carbonyls. Sodium cyanoborohydride is a milder reductant than other conventional reducing agents.
Structure
Sodium cyanoborohydride is a salt. The cat... | Sodium cyanoborohydride | Chemistry | 795 |
24,444,233 | https://en.wikipedia.org/wiki/Comparison%20of%20pumps | This article lists different types of pump and provides a comparison of certain key design features. Different types of pumps are suitable for different applications, for example: a pump's maximum lift height also determines the applications it can be used for. Low-lift pumps are only suitable for the pumping of surfac... | Comparison of pumps | Physics,Chemistry,Technology | 134 |
36,172,905 | https://en.wikipedia.org/wiki/Chinese%20standard%20movement | The Chinese Standard Movement, also commonly known as the "Tongji" (Chinese: 统机, "unified") movement, is a mechanical watch movement that was developed in the People's Republic of China during its fourth Five-Year Plan in the 1970s. It was designed by engineers from several early Chinese watch factories as part of a M... | Chinese standard movement | Technology | 1,383 |
501,158 | https://en.wikipedia.org/wiki/Intermediate%20filament | Intermediate filaments (IFs) are cytoskeletal structural components found in the cells of vertebrates, and many invertebrates. Homologues of the IF protein have been noted in an invertebrate, the cephalochordate Branchiostoma.
Intermediate filaments are composed of a family of related proteins sharing common structura... | Intermediate filament | Biology | 2,453 |
44,632,934 | https://en.wikipedia.org/wiki/Conservative%20replacement | A conservative replacement (also called a conservative mutation or a conservative substitution or a homologous replacement) is an amino acid replacement in a protein that changes a given amino acid to a different amino acid with similar biochemical properties (e.g. charge, hydrophobicity and size).
Conversely, a radic... | Conservative replacement | Chemistry,Biology | 394 |
1,118,963 | https://en.wikipedia.org/wiki/Nonribosomal%20peptide | Nonribosomal peptides (NRP) are a class of peptide secondary metabolites, usually produced by microorganisms like bacteria and fungi. Nonribosomal peptides are also found in higher organisms, such as nudibranchs, but are thought to be made by bacteria inside these organisms. While there exist a wide range of peptides ... | Nonribosomal peptide | Chemistry,Biology | 2,137 |
2,976,342 | https://en.wikipedia.org/wiki/Equivariant%20cohomology | In mathematics, equivariant cohomology (or Borel cohomology) is a cohomology theory from algebraic topology which applies to topological spaces with a group action. It can be viewed as a common generalization of group cohomology and an ordinary cohomology theory. Specifically, the equivariant cohomology ring of a spac... | Equivariant cohomology | Physics,Mathematics | 1,577 |
2,248,699 | https://en.wikipedia.org/wiki/Sulfoxide | In organic chemistry, a sulfoxide, also called a sulphoxide, is an organosulfur compound containing a sulfinyl () functional group attached to two carbon atoms. It is a polar functional group. Sulfoxides are oxidized derivatives of sulfides. Examples of important sulfoxides are alliin, a precursor to the compound that... | Sulfoxide | Chemistry | 1,309 |
37,797,383 | https://en.wikipedia.org/wiki/Vector%20measuring%20current%20meter | A vector measuring current meter (VMCM) is an instrument used for obtaining measurements of horizontal velocity in the upper ocean, which exploits two orthogonal cosine response propeller sensors that directly measure the components of horizontal velocity.
VMCM was developed in the late 1970s by Drs. Robert Weller and ... | Vector measuring current meter | Physics,Environmental_science | 2,146 |
518,397 | https://en.wikipedia.org/wiki/Angle%20of%20repose | The angle of repose, or critical angle of repose, of a granular material is the steepest angle of descent or dip relative to the horizontal plane on which the material can be piled without slumping. At this angle, the material on the slope face is on the verge of sliding. The angle of repose can range from 0° to 90°. ... | Angle of repose | Physics,Chemistry,Engineering | 1,375 |
22,256,076 | https://en.wikipedia.org/wiki/Thermal%20neutral%20zone | Endothermic organisms known as homeotherms maintain internal temperatures with minimal metabolic regulation within a range of ambient temperatures called the thermal neutral zone (TNZ). Within the TNZ the basal rate of heat production is equal to the rate of heat loss to the environment. Homeothermic organisms adjust t... | Thermal neutral zone | Biology | 1,372 |
35,759,318 | https://en.wikipedia.org/wiki/Thermoanaerobacter%20brockii | Thermoanaerobacter brockii, formerly Thermoanaerobium brockii, is a thermophilic, anaerobic, spore-forming bacterium.
The bacterium was first isolated from Yellowstone National Park. The growth range for the organism is 35 to 80°C and pH 5.5-9.5, with optimal growth conditions at 65-70°C and pH 7.5. T. brockii stains ... | Thermoanaerobacter brockii | Biology | 237 |
14,300,776 | https://en.wikipedia.org/wiki/Structural%20Awards | The Institution of Structural Engineers' Structural Awards have been awarded for the structural design of buildings and infrastructure since 1968. The awards were re-organised in 2006 to include ten categories and the Supreme Award for structural engineering excellence, the highest award a structural project can win.
... | Structural Awards | Engineering | 5,310 |
56,239 | https://en.wikipedia.org/wiki/Acrylamide | Acrylamide (or acrylic amide) is an organic compound with the chemical formula CH2=CHC(O)NH2. It is a white odorless solid, soluble in water and several organic solvents. From the chemistry perspective, acrylamide is a vinyl-substituted primary amide (CONH2). It is produced industrially mainly as a precursor to polyacr... | Acrylamide | Chemistry,Materials_science | 1,627 |
26,598,534 | https://en.wikipedia.org/wiki/Indian%20Financial%20System%20Code | The Indian Financial System Code (IFS Code or IFSC) is an alphanumeric code that facilitates electronic funds transfer in India. A code uniquely identifies each bank branch participating in the three main Payment and settlement systems in India: the National Electronic Funds Transfer (NEFT), Real Time Gross Settlement ... | Indian Financial System Code | Technology | 408 |
13,791,326 | https://en.wikipedia.org/wiki/39%20Cygni | 39 Cygni is a binary star system near the southern border of the northern constellation of Cygnus, approximately 270 light years away from Earth. It is visible to the naked eye as an orange-hued star with an apparent visual magnitude of 4.43. The system is moving closer to the Sun with a heliocentric radial velocity of... | 39 Cygni | Astronomy | 339 |
40,542,804 | https://en.wikipedia.org/wiki/Sulfidation | Sulfidation (British spelling also sulphidation) is a process of installing sulfide ions in a material or molecule. The process is widely used to convert oxides to sulfides but is also related to corrosion and surface modification.
Inorganic, materials, and organic chemistry
Sulfidation is relevant to the formation of... | Sulfidation | Physics,Chemistry,Materials_science,Mathematics | 454 |
60,446,213 | https://en.wikipedia.org/wiki/Composite%20glass | Composite glass is the collective term for a laminate having at least two glass panes which are in each case connected by means of an adhesive intermediate layer composed of plastic, e.g. by means of a casting resin or a thermoplastic composite film, which is highly tear-resistant and is viscoelastic. Composite glass s... | Composite glass | Physics,Chemistry | 445 |
4,960,751 | https://en.wikipedia.org/wiki/Rance%20Tidal%20Power%20Station | The Rance Tidal Power Station is a tidal power station located on the estuary of the Rance River in Brittany, France.
Opened in 1966 as the world's first tidal power station, the 240-megawatt (MW) facility was the largest such power station in the world by installed capacity for 45 years until the 254-MW South Korean ... | Rance Tidal Power Station | Engineering | 1,050 |
25,543,876 | https://en.wikipedia.org/wiki/Sup45p | Sup45p is the Saccharomyces cerevisiae (a yeast) eukaryotic translation termination factor. More specifically, it is the yeast eukaryotic release factor 1 (eRF1). Its job is to recognize stop codons in RNA and bind to them. It binds to the Sup35p protein and then takes on the shape of a tRNA molecule so that it can saf... | Sup45p | Chemistry | 130 |
60,046,320 | https://en.wikipedia.org/wiki/Acetomicrobium%20flavidum | Acetomicrobium flavidum is a thermophilic bacterium in the genus Acetomicrobium. It was first isolated from thermophilic, anaerobic sewage sludge digester operated at . The bacterium is gram negative and highly motile. The species represented around 25% of the microbial population in the sludge.
References
Synergi... | Acetomicrobium flavidum | Biology | 87 |
11,015,838 | https://en.wikipedia.org/wiki/Malagasy%20giant%20rat | The Malagasy giant rat (Hypogeomys antimena), also known as the votsotsa or votsovotsa, is a nesomyid rodent found only in the Menabe region of Madagascar. It is an endangered species due to habitat loss, slow reproduction, and limited range (200 square kilometres north of Morondava, between the rivers Tomitsy and Tsi... | Malagasy giant rat | Biology | 892 |
70,409,969 | https://en.wikipedia.org/wiki/Unditching%20beam |
An unditching beam is a device that is used to aid in the recovery of armoured fighting vehicles when they become bogged or "ditched". The device is a beam that is attached to the continuous tracks that provides additional traction for the vehicle to extricate itself from a ditch or from boggy conditions.
The unditch... | Unditching beam | Engineering | 234 |
47,294,125 | https://en.wikipedia.org/wiki/TU%20Corvi | TU Corvi is a yellow-white hued star in the southern constellation of Corvus. It is a dimly visible to the naked eye with an apparent visual magnitude of 6.20. The distance to this star can be estimated from its annual parallax shift of , yielding a range of about 246 light years. Based upon measured changes in its pro... | TU Corvi | Astronomy | 254 |
21,086,625 | https://en.wikipedia.org/wiki/Fluticasone%20furoate | Fluticasone furoate, sold under the brand name Flonase Sensimist among others, is a corticosteroid for the treatment of non-allergic and allergic rhinitis administered by a nasal spray. It is also available as an inhaled corticosteroid to help prevent and control symptoms of asthma. It is derived from cortisol. Unlike ... | Fluticasone furoate | Chemistry | 3,907 |
67,710,149 | https://en.wikipedia.org/wiki/Cannabielsoin | Cannabielsoin (CBE) is a metabolite of cannabidiol, one of the major chemical components of cannabis.
History
Cannabielsoin in scientific journals was first cited in 1973. It was concluded that cannabielsoin was formed from cannabidiol as part of the metabolic process and is non-psychoactive.
See also
Cannabicitra... | Cannabielsoin | Chemistry | 132 |
233,055 | https://en.wikipedia.org/wiki/Rate-monotonic%20scheduling | In computer science, rate-monotonic scheduling (RMS) is a priority assignment algorithm used in real-time operating systems (RTOS) with a static-priority scheduling class. The static priorities are assigned according to the cycle duration of the job, so a shorter cycle duration results in a higher job priority.
These ... | Rate-monotonic scheduling | Technology | 2,798 |
55,002,259 | https://en.wikipedia.org/wiki/Non-canonical%20base%20pairing | Non-canonical base pairs are planar hydrogen bonded pairs of nucleobases, having hydrogen bonding patterns which differ from the patterns observed in Watson-Crick base pairs, as in the classic double helical DNA. The structures of polynucleotide strands of both DNA and RNA molecules can be understood in terms of sugar-... | Non-canonical base pairing | Chemistry,Biology | 10,917 |
19,797,453 | https://en.wikipedia.org/wiki/Builders%20hardware | Builders' hardware or just builders hardware is a group of metal hardware specifically used for protection, decoration, and convenience in buildings. Building products do not make any part of a building, rather they support them and make them work. It usually supports fixtures like windows, doors, and cabinets. Common ... | Builders hardware | Physics,Technology,Engineering | 606 |
50,760,419 | https://en.wikipedia.org/wiki/Porn%20studies | Porn studies is the critical academic study of pornography and its associated industry, typically in the broader rubric of the field of sexuality studies. Porn studies takes as its object of research pornography itself — its visual artefacts, cultural role, controversies, and influence on the public — as well as the ma... | Porn studies | Biology | 625 |
39,539,086 | https://en.wikipedia.org/wiki/MPEG%20media%20transport | MPEG media transport (MMT), specified as ISO/IEC 23008-1 (MPEG-H Part 1), is a digital container standard developed by Moving Picture Experts Group (MPEG) that supports High Efficiency Video Coding (HEVC) video. MMT was designed to transfer data using the all-Internet Protocol (All-IP) network.
History
In April 2013 ... | MPEG media transport | Technology | 1,376 |
23,766,663 | https://en.wikipedia.org/wiki/Joule%20Unlimited | Joule Unlimited, formerly known as Joule Biotechnologies, was a producer of alternative energy technologies based in Bedford, Massachusetts. The company developed a process to generate hydrocarbon-based fuel by combining non-fresh water, nutrients, cyanobacteria, carbon dioxide, and sunlight. After ten years of operat... | Joule Unlimited | Engineering,Biology | 945 |
32,867,251 | https://en.wikipedia.org/wiki/Daylight%20factor | In architecture, a daylight factor (DF) is the ratio of the light level inside a structure to the light level outside the structure. It is defined as:
DF = (Ei / Eo) x 100%
where,
Ei = illuminance due to daylight at a point on the indoors working plane,
Eo = simultaneous outdoor illuminance on a horizontal plane from... | Daylight factor | Physics,Mathematics | 678 |
8,492,337 | https://en.wikipedia.org/wiki/Eratosthenes%20Seamount | The Eratosthenes Seamount or Eratosthenes Tablemount is a seamount in the Eastern Mediterranean, in the Levantine basin about south of western Cyprus. Unlike most seamounts, it is a carbonate platform, not a volcano. It is a large, submerged massif, about . Its peak lies at the depth of and it rises above the surro... | Eratosthenes Seamount | Physics | 500 |
50,571 | https://en.wikipedia.org/wiki/Transportation%20engineering | Transportation engineering or transport engineering is the application of technology and scientific principles to the planning, functional design, operation and management of facilities for any mode of transportation to provide for the safe, efficient, rapid, comfortable, convenient, economical, and environmentally com... | Transportation engineering | Engineering | 1,023 |
18,869,479 | https://en.wikipedia.org/wiki/Skytap | Skytap, Inc. is a private company based in Seattle, Washington offering a public service for cloud computing. Skytap provides self-service access to environments for learning, developing, testing, training, and running enterprise applications. The company was founded as Illumita in 2006 and renamed in 2008. Skytap is a... | Skytap | Technology | 686 |
53,855,483 | https://en.wikipedia.org/wiki/NGC%20447 | NGC 447 is a spiral galaxy of type (R)SB(rs)0/a located in the constellation Pisces. It was first discovered on October 8, 1861 by Heinrich d'Arrest (and later listed as NGC 447); it was also seen in the 1890s by Edward Emerson Barnard (and later listed as IC 1656). It was described by Dreyer as "faint, pretty large, b... | NGC 447 | Astronomy | 115 |
43,335,980 | https://en.wikipedia.org/wiki/Gene%20drive | A gene drive is a natural process and technology of genetic engineering that propagates a particular suite of genes throughout a population by altering the probability that a specific allele will be transmitted to offspring (instead of the Mendelian 50% probability). Gene drives can arise through a variety of mechanism... | Gene drive | Chemistry,Engineering,Biology | 3,830 |
23,983,507 | https://en.wikipedia.org/wiki/WSDMA | WSDMA (Wideband Space Division Multiple Access) is a high bandwidth channel access method, developed for multi-transceiver systems such as active array antennas. WSDMA is a beamforming technique suitable for overlay on the latest air-interface protocols including WCDMA and OFDM. WSDMA enabled systems can determine the ... | WSDMA | Technology,Engineering | 561 |
55,030,748 | https://en.wikipedia.org/wiki/Yichus | Yichus ( yḥws), a Hebrew-based Yiddish word meaning "lineage". In some past and present Jewish communities, good —meaning descent from a family of high reputation—is necessary for a person to be considered as a potential marriage partner. Colloquially, the term refers to the chain of origin for a statement, creative wo... | Yichus | Biology | 727 |
38,587,811 | https://en.wikipedia.org/wiki/F.%20M.%20Devienne | Fernand Marcel Devienne (20 February 1913 – 19 April 2003) was a French physicist who developed research on molecular beams and spectrum analysis in rarefied gas environment.
Life
Devienne was born in Marseille on 20 February 1913.
A Doctor of physics, F. Marcel Devienne was director of a research laboratory (Labora... | F. M. Devienne | Physics,Chemistry | 316 |
32,734,383 | https://en.wikipedia.org/wiki/Golden%20age%20of%20Spanish%20software | The golden age of Spanish software () was a time, between 1983 and 1992, when Spain became the second largest 8 bit computer entertainment software producer in Europe, only behind the United Kingdom. The disappearance of the 8 bit technology and its replacement by the 16 bit machines marked the end of this era, during ... | Golden age of Spanish software | Technology | 1,614 |
3,110,270 | https://en.wikipedia.org/wiki/Beta%20Leporis | Beta Leporis (β Leporis, abbreviated Beta Lep, β Lep), formally named Nihal , is the second brightest star in the constellation of Lepus.
Nomenclature
Beta Leporis is the star's Bayer designation. It is also known by the traditional named Nihal, Arabic for "quenching their thirst". The occasional spelling Nibal appea... | Beta Leporis | Astronomy | 484 |
2,583,687 | https://en.wikipedia.org/wiki/Prefoldin%20subunit%203 | Prefoldin subunit 3 (VBP-1), also Von Hippel–Lindau binding protein 1, is a prefoldin chaperone protein that binds to von Hippel–Lindau protein and transports it from perinuclear granules to the nucleus or cytoplasm inside the cell. It is also involved in transporting nascent polypeptides to cytosolic chaperonins for p... | Prefoldin subunit 3 | Chemistry | 235 |
14,777,889 | https://en.wikipedia.org/wiki/TBX3 | T-box transcription factor TBX3 is a protein that in humans is encoded by the TBX3 gene.
T-box 3 (TBX3) is a member of the T-box gene family of transcription factors which all share a highly conserved DNA binding domain known as the T-box. The T-box gene family consists of 17 members in mouse and humans that are group... | TBX3 | Chemistry,Biology | 2,417 |
938,663 | https://en.wikipedia.org/wiki/Multi-task%20learning | Multi-task learning (MTL) is a subfield of machine learning in which multiple learning tasks are solved at the same time, while exploiting commonalities and differences across tasks. This can result in improved learning efficiency and prediction accuracy for the task-specific models, when compared to training the model... | Multi-task learning | Engineering | 2,723 |
3,522,125 | https://en.wikipedia.org/wiki/Locate%20%28Unix%29 | locate is a Unix utility which serves to find files on filesystems. It searches through a prebuilt database of files generated by the updatedb command or by a daemon and compressed using incremental encoding. It operates significantly faster than find, but requires regular updating of the database. This sacrifices over... | Locate (Unix) | Technology | 337 |
31,622,897 | https://en.wikipedia.org/wiki/Balete%20tree | The balete tree (also known as balite or baliti) are several species of trees in the Philippines from the genus Ficus, which are generally referred to as balete in Filipino.
A number of these are strangler figs, as they germinate upon other trees, before entrapping their host tree entirely and eventually killing it.... | Balete tree | Biology | 892 |
51,108,168 | https://en.wikipedia.org/wiki/K2-72d | K2-72d is a small exoplanet orbiting around the red dwarf star K2-72 approximately 227.7 light-years away. K2-72d completes an orbit in 7.8 days, and it has a radius of only 73% of that of the Earth.
Host star
The planet orbits a (M-type) red dwarf star named K2-72, orbited by a total of four planets, of which K2-72e... | K2-72d | Astronomy | 263 |
2,421,175 | https://en.wikipedia.org/wiki/Medoid | Medoids are representative objects of a data set or a cluster within a data set whose sum of dissimilarities to all the objects in the cluster is minimal. Medoids are similar in concept to means or centroids, but medoids are always restricted to be members of the data set. Medoids are most commonly used on data when a ... | Medoid | Physics,Mathematics | 4,004 |
8,899,175 | https://en.wikipedia.org/wiki/The%20COED%20Project | The COED Project, or the COmmunications and EDiting Project, was an innovative software project created by the Computer Division of NOAA, US Department of Commerce in Boulder, Colorado in the 1970s. This project was designed, purchased and implemented by the in-house computing staff rather than any official organizatio... | The COED Project | Technology,Engineering | 705 |
10,114,984 | https://en.wikipedia.org/wiki/Daigremontianin | Daigremontianin is a bufadienolide. Bufadienolides are steroids and cardiac glycoside aglycones (meaning that they bind with carbohydrates to form cardiac glycosides) that are similar to cardenolides, differing only in the structure of the C-17 substituent on the D ring. This chemical has been found to be toxic in expe... | Daigremontianin | Chemistry | 240 |
35,990,296 | https://en.wikipedia.org/wiki/Amylostereum%20ferreum | Amylostereum ferreum is a species of crust fungus in the family Amylostereaceae.
References
External links
Russulales
Fungi described in 1869
Taxa named by Miles Joseph Berkeley
Fungus species | Amylostereum ferreum | Biology | 42 |
19,757,699 | https://en.wikipedia.org/wiki/Local%20Void | The Local Void is a vast, empty region of space, lying adjacent to the Local Group. Discovered by Brent Tully and Rick Fisher in 1987, the Local Void is now known to be composed of three separate sectors, separated by bridges of "wispy filaments". The precise extent of the void is unknown, but it is at least 45 Mpc (15... | Local Void | Chemistry,Astronomy | 574 |
49,458,281 | https://en.wikipedia.org/wiki/IRsweep | IRsweep is a Swiss company offering optical spectroscopy solutions and multipass absorption cells.
The spectroscopy is based on semiconductor quantum cascade laser frequency combs
in the mid-infrared wavelength range. The company is based in Zurich, Switzerland and was founded in 2014 and acquired by Sensirion Holding... | IRsweep | Physics,Chemistry | 200 |
34,164,583 | https://en.wikipedia.org/wiki/History%20of%20computer%20clusters | The history of computer clusters is best captured by a footnote in Greg Pfister's In Search of Clusters: "Virtually every press release from DEC mentioning clusters says ‘DEC, who invented clusters...’. IBM did not invent them either. Customers invented clusters, as soon as they could not fit all their work on one comp... | History of computer clusters | Technology | 1,032 |
205,472 | https://en.wikipedia.org/wiki/List%20of%20international%20call%20prefixes | This is a list of international dialing prefixes used in various countries for direct dialing of international telephone calls. These prefixes are typically required only when dialling from a landline, while in GSM-compliant mobile phone (cell phone) systems, the symbol + before the country code may be used irrespectiv... | List of international call prefixes | Mathematics | 202 |
255,426 | https://en.wikipedia.org/wiki/Commuting | Commuting is periodically recurring travel between a place of residence and place of work or study, where the traveler, referred to as a commuter, leaves the boundary of their home community. By extension, it can sometimes be any regular or often repeated travel between locations, even when not work-related. The modes ... | Commuting | Physics | 2,137 |
7,128,296 | https://en.wikipedia.org/wiki/SmartComputing | Smart Computing was a monthly computing and technology magazine published by Sandhills Publishing Company in Lincoln, Nebraska, USA. First released under the name PC Novice, it was published from 1990 to 2013.
Content
The magazine featured articles, reviews of hardware and software, editorial content and classified a... | SmartComputing | Technology | 568 |
1,874,573 | https://en.wikipedia.org/wiki/Cost%20per%20mille | Cost per mille (CPM), also called cost per thousand (CPT) (in Latin, French and Italian, mille means one thousand), is a commonly-used measurement in advertising. It is the cost an advertiser pays for one thousand views or impressions of an advertisement. Radio, television, newspaper, magazine, out-of-home advertising,... | Cost per mille | Technology | 1,349 |
18,136,205 | https://en.wikipedia.org/wiki/LcrV | In molecular biology, LcrV is a protein found in Yersinia pestis and several other bacterial species. It forms part of the Yersinia pestis virulence protein factors that also includes all Yops, or Yersinia outer protein, but the name has been kept out of convention. LcrV's main function is not actually known, but it is... | LcrV | Biology | 533 |
4,418,897 | https://en.wikipedia.org/wiki/Alternant%20matrix | In linear algebra, an alternant matrix is a matrix formed by applying a finite list of functions pointwise to a fixed column of inputs. An alternant determinant is the determinant of a square alternant matrix.
Generally, if are functions from a set to a field , and , then the alternant matrix has size and is defi... | Alternant matrix | Mathematics | 444 |
26,898,094 | https://en.wikipedia.org/wiki/Von%20Neumann%E2%80%93Morgenstern%20utility%20theorem | In decision theory, the von Neumann–Morgenstern (VNM) utility theorem demonstrates that rational choice under uncertainty involves making decisions that take the form of maximizing the expected value of some cardinal utility function. This function is known as the von Neumann–Morgenstern utility function. The theorem f... | Von Neumann–Morgenstern utility theorem | Mathematics | 3,076 |
16,637,535 | https://en.wikipedia.org/wiki/Size%20function | Size functions are shape descriptors, in a geometrical/topological sense. They are functions from the half-plane to the natural numbers, counting certain connected components of a topological space. They are used in pattern recognition and topology.
Formal definition
In size theory, the size function associated with... | Size function | Physics,Mathematics | 934 |
58,591,903 | https://en.wikipedia.org/wiki/Primate%20sociality | Primate sociality is an area of primatology that aims to study the interactions between three main elements of a primate social network: the social organisation, the social structure and the mating system. The intersection of these three structures describe the socially complex behaviours and relationships occurring am... | Primate sociality | Biology | 3,786 |
2,670,362 | https://en.wikipedia.org/wiki/Beta%20Sculptoris | Beta Sculptoris, Latinized from β Sculptoris, is a single, blue-white hued star in the southern constellation of Sculptor. It has an apparent visual magnitude of 4.37, which is bright enough to be seen with the naked eye. Based upon an annual parallax shift of 18.74 mas as seen from Earth, it is located 174 light years... | Beta Sculptoris | Astronomy | 253 |
1,896,782 | https://en.wikipedia.org/wiki/Area%20of%20a%20circle | In geometry, the area enclosed by a circle of radius is . Here, the Greek letter represents the constant ratio of the circumference of any circle to its diameter, approximately equal to 3.14159.
One method of deriving this formula, which originated with Archimedes, involves viewing the circle as the limit of a seque... | Area of a circle | Physics,Mathematics | 5,915 |
8,616,527 | https://en.wikipedia.org/wiki/Low%20voltage | In electrical engineering, low voltage is a relative term, the definition varying by context. Different definitions are used in electric power transmission and distribution, compared with electronics design. Electrical safety codes define "low voltage" circuits that are exempt from the protection required at higher vo... | Low voltage | Engineering | 477 |
26,158,226 | https://en.wikipedia.org/wiki/Prospective%20Outlook%20on%20Long-term%20Energy%20Systems | Prospective Outlook on Long-term Energy Systems (POLES) is a world simulation model for the energy sector that runs on the Vensim software. It is a techno-economic model with endogenous projection of energy prices, a complete accounting of energy demand and supply of numerous energy vectors and associated technologies,... | Prospective Outlook on Long-term Energy Systems | Environmental_science | 1,690 |
31,540,845 | https://en.wikipedia.org/wiki/Ritter%20reaction | The Ritter reaction (sometimes called the Ritter amidation) is a chemical reaction that transforms a nitrile into an N-alkyl amide using various electrophilic alkylating reagents. The original reaction formed the alkylating agent using an alkene in the presence of a strong acid.
Mechanism and scope
The Ritter reaction... | Ritter reaction | Chemistry | 564 |
44,744,577 | https://en.wikipedia.org/wiki/Sir%20Hans%20Krebs%20Medal | The Sir Hans Krebs Lecture and Medal is awarded annually by the Federation of European Biochemical Societies (FEBS) for outstanding achievements in Biochemistry and Molecular Biology or related sciences.
It was endowed by the Lord Rank Centre for Research and named after the German-born British biochemist Sir Hans Ado... | Sir Hans Krebs Medal | Chemistry,Biology | 410 |
11,264,285 | https://en.wikipedia.org/wiki/Quantum%20graph | In mathematics and physics, a quantum graph is a linear, network-shaped structure of vertices connected on edges (i.e., a graph) in which each edge is given a length and where a differential (or pseudo-differential) equation is posed on each edge. An example would be a power network consisting of power lines (edges) ... | Quantum graph | Physics,Mathematics | 1,998 |
580,713 | https://en.wikipedia.org/wiki/Virtual%20sex | Virtual sex is sexual activity where two or more people (or one person and a virtual character) gather together via some form of communications equipment to arouse each other, often by the means of transmitting sexually explicit messages. Virtual sex describes the phenomenon, no matter the communications equipment used... | Virtual sex | Technology | 1,696 |
37,907,595 | https://en.wikipedia.org/wiki/Distributed%20object%20middleware | Distributed Object Middleware (DOM) is a type of infrastructure that allows remote access to remote objects transparently. It is based on the Remote Procedure Call (RPC) mechanism. Some DOM systems also enable objects on different platforms to interact, for example, CORBA. Other examples of DOM systems include Microsof... | Distributed object middleware | Technology,Engineering | 97 |
195,963 | https://en.wikipedia.org/wiki/ILLIAC%20IV | The ILLIAC IV was the first massively parallel computer. The system was originally designed to have 256 64-bit floating point units (FPUs) and four central processing units (CPUs) able to process 1 billion operations per second. Due to budget constraints, only a single "quadrant" with 64 FPUs and a single CPU was built... | ILLIAC IV | Technology | 5,931 |
51,673,289 | https://en.wikipedia.org/wiki/38%20Virginis | 38 Virginis is an F-type main sequence star in the constellation of Virgo. It is around 108 light years distant from the Earth.
Nomenclature
The name 38 Virginis derives from the star being the 38th star in order of right ascension catalogued in the constellation Virgo by Flamsteed in his star catalogue. The designat... | 38 Virginis | Astronomy | 393 |
3,116,378 | https://en.wikipedia.org/wiki/Tau2%20Eridani | {{DISPLAYTITLE:Tau2 Eridani}}
Tau2 Eridani (τ2 Eridani, abbreviated Tau2 Eri, τ2 Eri), formally named Angetenar , is a star in the constellation of Eridanus. It is visible to the naked eye with an apparent visual magnitude of 4.78. The distance to this star, as determined via the parallax method, is around 187 light-y... | Tau2 Eridani | Astronomy | 542 |
75,047 | https://en.wikipedia.org/wiki/Aeroelasticity | Aeroelasticity is the branch of physics and engineering studying the interactions between the inertial, elastic, and aerodynamic forces occurring while an elastic body is exposed to a fluid flow. The study of aeroelasticity may be broadly classified into two fields: static aeroelasticity dealing with the static or stea... | Aeroelasticity | Physics,Chemistry,Materials_science,Engineering | 2,525 |
42,764 | https://en.wikipedia.org/wiki/Hagia%20Sophia | Hagia Sophia (; ; ; ), officially the Hagia Sophia Grand Mosque,(; ), is a mosque and former church serving as a major cultural and historical site in Istanbul, Turkey. The last of three church buildings to be successively erected on the site by the Eastern Roman Empire, it was completed in AD 537, becoming the world's... | Hagia Sophia | Engineering | 21,686 |
22,406,394 | https://en.wikipedia.org/wiki/Nimbus%20%28cloud%20computing%29 |
Nimbus is a toolkit that, once installed on a cluster, provides an infrastructure as a service cloud to its client via WSRF-based or Amazon EC2 WSDL web service APIs. Nimbus is free and open-source software, subject to the requirements of the Apache License, version 2.
Nimbus supports both the hypervisors Xen and KV... | Nimbus (cloud computing) | Technology | 207 |
3,761,640 | https://en.wikipedia.org/wiki/List%20of%20uniform%20polyhedra%20by%20Wythoff%20symbol | There are many relations among the uniform polyhedra.
Here they are grouped by the Wythoff symbol.
Key
Regular
All the faces are identical, each edge is identical and each vertex is identical.
They all have a Wythoff symbol of the form p|q 2.
Convex
The Platonic solids.
Non-convex
The Kepler-Poinsot solids.
Q... | List of uniform polyhedra by Wythoff symbol | Physics | 509 |
70,340,520 | https://en.wikipedia.org/wiki/Phone%20repair%20with%20rice | Submerging a mobile device into rice is a common repair advice for devices that suffered from water damage. This technique has not been shown to be effective in repairing them. Submerging these devices into a desiccant may or may not be more effective than leaving them to dry in open air. Uncooked rice is inferior to o... | Phone repair with rice | Technology | 207 |
1,835,001 | https://en.wikipedia.org/wiki/Nakayama%27s%20lemma | In mathematics, more specifically abstract algebra and commutative algebra, Nakayama's lemma — also known as the Krull–Azumaya theorem — governs the interaction between the Jacobson radical of a ring (typically a commutative ring) and its finitely generated modules. Informally, the lemma immediately gives a precise se... | Nakayama's lemma | Mathematics | 2,542 |
64,616,308 | https://en.wikipedia.org/wiki/Cyparissus%20%28Vignali%29 | Cyparissus is a 1620s Baroque painting on a mythological subject from Ovid's Metamorphoses by the Italian painter Jacopo Vignali. It is on display in the Musée des Beaux-Arts of Strasbourg, France, to which it had been donated by the collectors Othon Kaufmann and François Schlageter in 1994. Its inventory number is 994... | Cyparissus (Vignali) | Biology | 251 |
22,102,292 | https://en.wikipedia.org/wiki/DySPAN | The Dynamic Spectrum Access Networks Standards Committee (DySPAN-SC), formerly Standards Coordinating Committee 41 (SCC41), and even earlier the IEEE P1900 Standards Committee, is sponsored by the Institute of Electrical and Electronics Engineers (IEEE). The group develops standards for radio and spectrum management. ... | DySPAN | Technology,Engineering | 840 |
68,824,917 | https://en.wikipedia.org/wiki/CP-450 | CP 450 was a large cabinet containing a floppy disk drive interface, exactly like the TRS-80 Color Computer, manufactured by Prológica, a computer company located in Brazil.
General information
The standard operating system is DOS-400, an adapted and renamed copy of disk Extended Color BASIC (DECB or RSDOS). It was a... | CP-450 | Technology | 203 |
5,931,077 | https://en.wikipedia.org/wiki/National%20Art%20Glass%20Gallery | National Art Glass Gallery is located at the Wagga Wagga Civic Centre which started collecting studio glass in 1979 under the name Wagga Wagga Art Gallery but was changed to its current name to recognise the galley's national significance.
collections
References
External links
National Art Glass Gallery - Wagga Wag... | National Art Glass Gallery | Materials_science,Engineering | 90 |
52,711,824 | https://en.wikipedia.org/wiki/Cytestrol%20acetate | Cytestrol acetate is a steroidal antiestrogen and a cytostatic antineoplastic agent (i.e., chemotherapeutic) which was developed for the treatment of breast cancer but was never marketed.
It is an 11α-hydroxylated derivative of ethinylestradiol in which a bis(2-chloroethyl)amine nitrogen mustard moiety has been attac... | Cytestrol acetate | Chemistry | 280 |
64,118,685 | https://en.wikipedia.org/wiki/Haseb%20%28rocket%29 | The Haseb rocket is an Iranian 107 mm Artillery rocket derived from the Chinese Type 63 multiple rocket launcher. It is mounted on a Haseb (same name) Multiple Launch Rocker System (MLRS) with 12-tube 2-wheel split rail similar to that of the Type 63 multiple rocket launcher. The rocket has a range of 9 km and a warhea... | Haseb (rocket) | Astronomy | 100 |
41,287 | https://en.wikipedia.org/wiki/Intersymbol%20interference | In telecommunications, intersymbol interference (ISI) is a form of distortion of a signal in which one symbol interferes with subsequent symbols. This is an unwanted phenomenon as the previous symbols have a similar effect as noise, thus making the communication less reliable. The spreading of the pulse beyond its allo... | Intersymbol interference | Technology,Engineering | 1,521 |
36,653,939 | https://en.wikipedia.org/wiki/Pozzolanic%20activity | The pozzolanic activity is a measure for the degree of reaction over time or the reaction rate between a pozzolan and Ca2+ or calcium hydroxide (Ca(OH)2) in the presence of water. The rate of the pozzolanic reaction is dependent on the intrinsic characteristics of the pozzolan such as the specific surface area, the che... | Pozzolanic activity | Engineering | 1,943 |
11,421,987 | https://en.wikipedia.org/wiki/Small%20nucleolar%20RNA%20SNORD42 | In molecular biology, snoRNA U42 (also known as SNORD42) is a non-coding RNA (ncRNA) molecule which functions in the modification of other small nuclear RNAs (snRNAs). This type of modifying RNA is usually located in the nucleolus of the eukaryotic cell which is a major site of snRNA biogenesis. It is known as a small... | Small nucleolar RNA SNORD42 | Chemistry | 279 |
384,327 | https://en.wikipedia.org/wiki/Intersection%20number | In mathematics, and especially in algebraic geometry, the intersection number generalizes the intuitive notion of counting the number of times two curves intersect to higher dimensions, multiple (more than 2) curves, and accounting properly for tangency. One needs a definition of intersection number in order to state r... | Intersection number | Mathematics | 2,382 |
71,700,481 | https://en.wikipedia.org/wiki/QQ%20Vulpeculae | QQ Vulpeculae is a cataclysmic variable binary star system in the northern constellation of Vulpecula, abbreviated QQ Vul. It has a brightness that fluctuates around an apparent visual magnitude of 14.7, which is too faint to be viewed with the naked eye. The distance to this system is approximately 981 light years bas... | QQ Vulpeculae | Astronomy | 514 |
57,340,821 | https://en.wikipedia.org/wiki/Kittell%20graph | In the mathematical field of graph theory, the Kittell graph is a planar graph with 23 vertices and 63 edges. Its unique planar embedding has 42 triangular faces. The Kittell graph is named after Irving Kittell, who used it as a counterexample to Alfred Kempe's flawed proof of the four-color theorem. Simpler counterex... | Kittell graph | Mathematics | 113 |
1,411,865 | https://en.wikipedia.org/wiki/TRACE | Transition Region and Coronal Explorer (TRACE, or Explorer 73, SMEX-4) was a NASA heliophysics and solar observatory designed to investigate the connections between fine-scale magnetic fields and the associated plasma structures on the Sun by providing high-resolution images and observation of the solar photosphere, th... | TRACE | Astronomy | 1,253 |
48,498,010 | https://en.wikipedia.org/wiki/Management%20plane | In computer networking, the management plane of a networking device is the element of a system that configures, monitors, and provides management, monitoring and configuration services to, all layers of the network stack and other parts of the system. It should be distinguished from the control plane, which is primaril... | Management plane | Technology | 125 |
587,339 | https://en.wikipedia.org/wiki/Circuit%20diagram | A circuit diagram (or: wiring diagram, electrical diagram, elementary diagram, electronic schematic) is a graphical representation of an electrical circuit. A pictorial circuit diagram uses simple images of components, while a schematic diagram shows the components and interconnections of the circuit using standardized... | Circuit diagram | Engineering | 1,362 |
14,756,639 | https://en.wikipedia.org/wiki/ST2%20cardiac%20biomarker | The ST2 cardiac biomarker (also known as soluble interleukin 1 receptor-like 1) is a protein biomarker of cardiac stress encoded by the IL1RL1 gene. ST2 signals the presence and severity of adverse cardiac remodeling and tissue fibrosis, which occurs in response to myocardial infarction, acute coronary syndrome, or wor... | ST2 cardiac biomarker | Biology | 867 |
3,428,490 | https://en.wikipedia.org/wiki/Graph%20Modelling%20Language | Graph Modeling Language (GML) is a hierarchical ASCII-based file format for describing graphs. It has been also named Graph Meta Language.
Example
A simple graph in GML format:
graph [
comment "This is a sample graph"
directed 1
id 42
label "Hello, I am a graph"
node [
id 1
label "node 1"
thisIsASampleAttri... | Graph Modelling Language | Mathematics | 461 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.