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 |
|---|---|---|---|---|---|
24,635,433 | https://en.wikipedia.org/wiki/Balanced%20Boolean%20function | In mathematics and computer science, a balanced Boolean function is a Boolean function whose output yields as many 0s as 1s over its input set. This means that for a uniformly random input string of bits, the probability of getting a 1 is 1/2.
Examples
Examples of balanced Boolean functions are the majority function, ... | Balanced Boolean function | Mathematics | 298 |
3,955,450 | https://en.wikipedia.org/wiki/Neutral%20current | Weak neutral current interactions are one of the ways in which subatomic particles can interact by means of the weak force. These interactions are mediated by the Z boson. The discovery of weak neutral currents was a significant step toward the unification of electromagnetism and the weak force into the electroweak fo... | Neutral current | Physics | 754 |
35,508,471 | https://en.wikipedia.org/wiki/800%20MHz%20frequency%20band | The 800 MHz frequency band is a portion of the electromagnetic spectrum, or frequency band, that encompasses 790–862 MHz.
Being a part of the spectrum known as "UHF Bands IV and V" (i.e. 470 MHz to 862 MHz) it was allocated by the ITU to Broadcasting as the primary user in Region 1 and was used for analogue television... | 800 MHz frequency band | Physics,Technology,Engineering | 1,117 |
20,845,760 | https://en.wikipedia.org/wiki/Eilat%20stone | Eilat Stone () is a gemstone that derives its name from the city of Eilat in Israel, where it was once mined. It is characterized by a green-blue heterogeneous mixture of several secondary copper minerals, including malachite, azurite, turquoise, pseudomalachite, and chrysocolla. Eilat stone is the national stone of Is... | Eilat stone | Physics | 109 |
61,045,899 | https://en.wikipedia.org/wiki/Slimicide | Slimicide (or antislime agent) is a broad-spectrum antimicrobial pesticide used to kill slime-producing microorganisms such as algae, bacteria, fungi, and slime molds. One primary application domain is in the papermaking industry, where it reduces the occurrence of paper holes and spots, as well as protecting the mach... | Slimicide | Biology,Environmental_science | 191 |
54,152,714 | https://en.wikipedia.org/wiki/6-%28Methylsulfinyl%29hexyl%20isothiocyanate | 6-(Methylsulfinyl)hexyl isothiocyanate (6-MITC or 6-MSITC) is a compound within the isothiocyanate group of organosulfur compounds. 6-MITC is obtained from cruciferous vegetables, chiefly wasabi. Like other isothiocyanates, it is produced when the enzyme myrosinase transforms the associated glucosinolate into 6-MITC u... | 6-(Methylsulfinyl)hexyl isothiocyanate | Chemistry,Biology | 236 |
2,334,511 | https://en.wikipedia.org/wiki/What%20Is%20Life%3F | What Is Life? The Physical Aspect of the Living Cell is a 1944 science book written for the lay reader by the physicist Erwin Schrödinger. The book was based on a course of public lectures delivered by Schrödinger in February1943, under the auspices of the Dublin Institute for Advanced Studies, where he was Director o... | What Is Life? | Physics,Mathematics,Biology | 2,438 |
41,609,009 | https://en.wikipedia.org/wiki/26%20Cygni | 26 Cygni is a single star in the northern constellation of Cygnus. It has the Bayer designation e Cygni, while 26 Cygni is the Flamsteed designation. This star is visible to the naked eye as a faint, yellow-hued point of light with an apparent visual magnitude of 5.12. It is located around distant from the Sun, based ... | 26 Cygni | Astronomy | 279 |
5,095,008 | https://en.wikipedia.org/wiki/Sigma%20Cassiopeiae | [[File:SigCasLightCurve.png|thumb|left|Light curves for Sigma Cassiopeiae, plotted from TESS data.]]
Sigma Cassiopeiae (σ Cas, σ Cassiopeiae) is a binary star in the constellation Cassiopeia. It is 1,200 to from Earth and has a combined apparent magnitude of +4.88, making it visible to the naked eye.
The primary com... | Sigma Cassiopeiae | Astronomy | 358 |
14,356,754 | https://en.wikipedia.org/wiki/Hatta%20number | The Hatta number (Ha) was developed by Shirôji Hatta (1895-1973 ) in 1932, who taught at Tohoku University from 1925 to 1958. It is a dimensionless parameter that compares the rate of reaction in a liquid film to the rate of diffusion through the film. For a second order reaction (), the maximum rate of reaction assume... | Hatta number | Physics,Chemistry,Engineering | 202 |
11,127,883 | https://en.wikipedia.org/wiki/Helicobasidium%20longisporum | Helicobasidium longisporum is a species of fungus in the subdivision Pucciniomycotina. Basidiocarps (fruit bodies) are corticioid (patch-forming) and are typically violet to purple. Microscopically they have auricularioid (laterally septate) basidia. Helicobasidium longisporum is an opportunistic plant pathogen and is ... | Helicobasidium longisporum | Biology | 540 |
1,449,980 | https://en.wikipedia.org/wiki/Jason%20%28rocket%29 | Jason was an American sounding rocket with 5 stages. The Jason was launched 22 times in 1958. The Jason could carry a payload of 125 pounds (57 kg) to an altitude of 500 mi (800 km). The launch thrust was 82,100 pounds-force (365 kN), the launch mass 7,340 lb (3330 kg), the diameter 58 centimeters (23 in) and the lengt... | Jason (rocket) | Astronomy | 203 |
68,990,413 | https://en.wikipedia.org/wiki/Hardware%20for%20artificial%20intelligence | Specialized computer hardware is often used to execute artificial intelligence (AI) programs faster, and with less energy, such as Lisp machines, neuromorphic engineering, event cameras, and physical neural networks. Since 2017, several consumer grade CPUs and SoCs have on-die NPUs. As of 2023, the market for AI hardwa... | Hardware for artificial intelligence | Technology,Engineering | 303 |
38,458 | https://en.wikipedia.org/wiki/Space%20Shuttle%20program | The Space Shuttle program was the fourth human spaceflight program carried out by the U.S. National Aeronautics and Space Administration (NASA), which accomplished routine transportation for Earth-to-orbit crew and cargo from 1981 to 2011. Its official program name was Space Transportation System (STS), taken from a 19... | Space Shuttle program | Engineering | 5,756 |
28,105,432 | https://en.wikipedia.org/wiki/R136a1 | R136a1 (short for RMC 136a1) is one of the most massive and luminous stars known, at nearly and nearly 4.7 million , and is also one of the hottest, at around . It is a Wolf–Rayet star at the center of R136, the central concentration of stars of the large NGC 2070 open cluster in the Tarantula Nebula (30 Doradus) in t... | R136a1 | Astronomy | 4,125 |
14,133,729 | https://en.wikipedia.org/wiki/GATA4 | Transcription factor GATA-4 is a protein that in humans is encoded by the GATA4 gene.
Function
This gene encodes a member of the GATA family of zinc finger transcription factors. Members of this family recognize the GATA motif which is present in the promoters of many genes. This protein is thought to regulate genes... | GATA4 | Chemistry,Biology | 788 |
77,958,629 | https://en.wikipedia.org/wiki/NGC%206605 | NGC 6605 is an open cluster located in the constellation Serpens. It was discovered by the British astronomer John Herschel in 1826.
Description
With a visual magnitude of 6.0, this cluster is visible to the naked eye from a very dark location free of light pollution. Elsewhere, however, the cluster can be observed w... | NGC 6605 | Astronomy | 151 |
42,068,958 | https://en.wikipedia.org/wiki/Drinfeld%E2%80%93Sokolov%E2%80%93Wilson%20equation | The Drinfeld–Sokolov–Wilson (DSW) equations are an integrable system of two coupled nonlinear partial differential equations proposed by Vladimir Drinfeld and Vladimir Sokolov, and independently by George Wilson:
References
Nonlinear partial differential equations
Integrable systems | Drinfeld–Sokolov–Wilson equation | Physics | 57 |
33,702,893 | https://en.wikipedia.org/wiki/Surface%20rheology | Surface rheology is a description of the rheological properties of a free surface. When perfectly pure, the interface between fluids usually displays only surface tension. The stress within a fluid interface can be affected by the adsorption of surfactants in several ways:
Change in the surface concentration of surfac... | Surface rheology | Chemistry | 361 |
32,753,683 | https://en.wikipedia.org/wiki/Formylglycine-generating%20enzyme | Formylglycine-generating enzyme (FGE), located at 3p26.1 in humans, is the name for an enzyme present in the endoplasmic reticulum that catalyzes the conversion of cysteine to formylglycine (fGly). There are two main classes of FGE, aerobic and anaerobic. FGE activates sulfatases, which are essential for the degradatio... | Formylglycine-generating enzyme | Biology | 867 |
39,066 | https://en.wikipedia.org/wiki/List%20of%20religions%20and%20spiritual%20traditions | While the word religion is difficult to define, one standard model of religion used in religious studies courses defines it as
Many religions have narratives, symbols, traditions and sacred histories that are intended to give meaning to life or to explain the origin of life or the universe. They tend to derive moralit... | List of religions and spiritual traditions | Biology | 9,085 |
44,966,748 | https://en.wikipedia.org/wiki/Hydnellum%20cyanodon | Hydnellum cyanodon is a rare species of tooth fungus in the family Bankeraceae. Found in Boularderie Island and Antigonish County (Nova Scotia, Canada), it was described as new to science in 1964 by Canadian mycologist Kenneth A. Harrison. The turbinate (cushion-shaped) cap of the fruitbody measures in diameter. Spine... | Hydnellum cyanodon | Biology | 129 |
38,266,311 | https://en.wikipedia.org/wiki/U.S.A.%20%28painting%29 | U.S.A. is a trompe-l'œil oil painting by American artist John Haberle from 1889, located in the Indianapolis Museum of Art, which is in Indianapolis, Indiana. It depicts currency and stamps so realistically that Haberle was accused of pasting real money to the canvas.
Description
U.S.A. depicts a scattering of worn Am... | U.S.A. (painting) | Physics | 564 |
5,668,570 | https://en.wikipedia.org/wiki/Trisaccharide | Trisaccharides are oligosaccharides composed of three monosaccharides with two glycosidic bonds connecting them. Similar to the disaccharides, each glycosidic bond can be formed between any hydroxyl group on the component monosaccharides. Even if all three component sugars are the same (e.g., glucose), different bond c... | Trisaccharide | Chemistry | 131 |
11,404,339 | https://en.wikipedia.org/wiki/Daniel%20Mastretta | Juan Daniel Mastretta Guzmán (born 1953, Puebla) is a Mexican engineer and designer. In 1987 he founded Mastretta Design, a design and automotive company. Mastretta was chiefly responsible for the development of the first Mexican sports car, the Mastretta MXT, in 2008.
Daniel Mastretta trained in industrial design, an... | Daniel Mastretta | Engineering | 207 |
65,820,116 | https://en.wikipedia.org/wiki/13%20Ceti | 13 Ceti is a triple star system in the equatorial constellation of Cetus. It is dimly visible to the naked eye with a combined apparent visual magnitude of 5.20. The system is located at a distance of approximately 69 light years from the Sun based on stellar parallax, and is drifting further away with a radial velocit... | 13 Ceti | Astronomy | 515 |
249,992 | https://en.wikipedia.org/wiki/Binary%20logarithm | In mathematics, the binary logarithm () is the power to which the number must be raised to obtain the value . That is, for any real number ,
For example, the binary logarithm of is , the binary logarithm of is , the binary logarithm of is , and the binary logarithm of is .
The binary logarithm is the logarithm t... | Binary logarithm | Mathematics | 3,449 |
9,639,785 | https://en.wikipedia.org/wiki/Kuroshima%20Research%20Station | Kuroshima Research Station is a marine research institute in Okinawa, Japan, located on the island of Kuroshima. (黒島)
It was established in 1973 as the Yaeyama Marine Park Research Institute, for the purpose of managing and utilising the marine park area in Sekisei (石西) lagoon between Ishigaki (石垣) Island and Iriomote... | Kuroshima Research Station | Biology | 299 |
34,255,168 | https://en.wikipedia.org/wiki/Stein%202051 | Stein 2051 (Gliese 169.1, G 175-034, LHS 26/27) is a nearby binary star system, containing a red dwarf (component A) and a degenerate star (white dwarf) (component B), located in constellation Camelopardalis at about 18 ly from Earth.
Stein 2051 is the nearest (red dwarf + white dwarf) separate binary system (40 Erida... | Stein 2051 | Astronomy | 299 |
58,621,893 | https://en.wikipedia.org/wiki/Epiroc | Epiroc AB is a Swedish manufacturer of mining and infrastructure equipment. It is headquartered in Stockholm, Sweden and has its manufacturing facilities in Sweden, the United States, Canada, Australia, China, India, Japan, and Germany.
History
Epiroc has its roots in Atlas Copco, which was founded in 1873 in Stockhol... | Epiroc | Engineering | 315 |
27,105,779 | https://en.wikipedia.org/wiki/Galala%20marble | Galala or Galalah is an Egyptian limestone extracted from a mountain called Galala located in Suez, Egypt. It was named of the trade name of this mountain "Galala Marble". Its colours are creamy and creamy white as its variations differ according to the quarry stones.
Galala Physical and mechanical characteristics:
... | Galala marble | Physics | 113 |
3,654,354 | https://en.wikipedia.org/wiki/Still%20room | The still room is a room for preparing household compounds, found in most great houses, castles or large establishments throughout Europe, dating back at least to medieval times. Stillrooms were used to make products as varied as candles, furniture polish, and soap; distillery was only one of the tasks carried out the... | Still room | Engineering | 1,938 |
40,643,165 | https://en.wikipedia.org/wiki/Veratramine | Veratramine is an alkaloid isolated from the rhizomes of Veratrum.
References
Piperidine alkaloids | Veratramine | Chemistry | 28 |
72,765,366 | https://en.wikipedia.org/wiki/Buchwaldoboletus%20xylophilus | Buchwaldoboletus xylophilus is a species of bolete fungus in the family Boletaceae native to Asia, found on wood. It has a convex brown cap, and a red-brown stipe. Its edibility is unknown.
Taxonomy and naming
Originally described by Thomas Petch in 1922 as Boletus xylophilus, it was given its current name by Ernst B... | Buchwaldoboletus xylophilus | Biology | 288 |
10,857 | https://en.wikipedia.org/wiki/Stage%20%28stratigraphy%29 | In chronostratigraphy, a stage is a succession of rock strata laid down in a single age on the geologic timescale, which usually represents millions of years of deposition. A given stage of rock and the corresponding age of time will by convention have the same name, and the same boundaries.
Rock series are divided i... | Stage (stratigraphy) | Physics,Mathematics,Biology | 915 |
27,946,490 | https://en.wikipedia.org/wiki/Laterculus | A laterculus was, in late antiquity or the early medieval period, an inscribed tile, stone or terracotta tablet used for publishing certain kinds of information in list or calendar form. The term thus came to be used for the content represented by such an inscription, most often a list, register, or table, regardless o... | Laterculus | Physics | 449 |
41,819,435 | https://en.wikipedia.org/wiki/Surface%20triangulation | Triangulation of a surface means
a net of triangles, which covers a given surface partly or totally, or
the procedure of generating the points and triangles of such a net of triangles.
Approaches
This article describes the generation of a net of triangles. In literature there are contributions which deal with the op... | Surface triangulation | Engineering | 481 |
58,505,053 | https://en.wikipedia.org/wiki/Bioinorganic%20Chemistry%20Award | The Bioinorganic Chemistry Award has been awarded by the Dalton division of the Royal Society of Chemistry every two years since 2009. The winner receives £2000 and undertakes a lecture tour in the UK. The award was discontinued in 2020.
Winners
Source:
See also
List of chemistry awards
References
Awards of the R... | Bioinorganic Chemistry Award | Chemistry,Technology,Biology | 73 |
64,242,581 | https://en.wikipedia.org/wiki/Isolichenan | Isolichenan, also known as isolichenin, is a cold-water-soluble α-glucan occurring in certain species of lichens. This lichen product was first isolated as a component of an extract of Iceland moss in 1813, along with lichenin. After further analysis and characterization of the individual components of the extract, iso... | Isolichenan | Chemistry | 1,990 |
2,028,895 | https://en.wikipedia.org/wiki/Weber%20number | The Weber number (We) is a dimensionless number in fluid mechanics that is often useful in analysing fluid flows where there is an interface between two different fluids, especially for multiphase flows with strongly curved surfaces. It is named after Moritz Weber (1871–1951). It can be thought of as a measure of the r... | Weber number | Chemistry,Engineering | 601 |
3,138,467 | https://en.wikipedia.org/wiki/N-player%20game | In game theory, an n-player game is a game which is well defined for any number of players. This is usually used in contrast to standard 2-player games that are only specified for two players. In defining n-player games, game theorists usually provide a definition that allow for any (finite) number of players. The limi... | N-player game | Mathematics | 241 |
200,161 | https://en.wikipedia.org/wiki/Stream%20gauge | A stream gauge, streamgage or stream gauging station is a location used by hydrologists or environmental scientists to monitor and test terrestrial bodies of water. Hydrometric measurements of water level surface elevation ("stage") and/or volumetric discharge (flow) are generally taken and observations of biota and wa... | Stream gauge | Technology,Engineering,Environmental_science | 1,695 |
2,674,674 | https://en.wikipedia.org/wiki/List%20of%20compounds%20with%20carbon%20numbers%2030%E2%80%9339 | This is a partial list of molecules that contain 30 to 39 carbon atoms.
C30
C31
C32
C33
C34
C35
C36
C37
C38
C39
See also
Carbon number
References
C30 | List of compounds with carbon numbers 30–39 | Chemistry | 44 |
23,706 | https://en.wikipedia.org/wiki/Primitive%20notion | In mathematics, logic, philosophy, and formal systems, a primitive notion is a concept that is not defined in terms of previously-defined concepts. It is often motivated informally, usually by an appeal to intuition or taken to be self-evident. In an axiomatic theory, relations between primitive notions are restricted ... | Primitive notion | Mathematics | 959 |
13,277,538 | https://en.wikipedia.org/wiki/Thermal%20conductivity%20detector | The thermal conductivity detector (TCD), also known as a katharometer, is a bulk property detector and a chemical specific detector commonly used in gas chromatography. This detector senses changes in the thermal conductivity of the column eluent and compares it to a reference flow of carrier gas. Since most compounds ... | Thermal conductivity detector | Chemistry,Technology,Engineering | 1,060 |
2,743,934 | https://en.wikipedia.org/wiki/Omicron%20Virginis | Omicron Virginis (ο Vir, ο Virginis) is a star in the zodiac constellation of Virgo. It is visible to the naked eye with an apparent visual magnitude of +4.12. Based upon parallax measurements, it is about 163 light years from the Sun.
ο Virginis is a G-type giant star with a stellar classification of G8 IIIa CN-1Ba1C... | Omicron Virginis | Astronomy | 292 |
41,481 | https://en.wikipedia.org/wiki/Packet-switching%20node | A packet-switching node is a node in a packet-switching network that contains data switches and equipment for controlling, formatting, transmitting, routing, and receiving data packets.
Note: In the Defense Data Network (DDN), a packet-switching node is usually configured to support up to thirty-two X.25 56 kbit/s h... | Packet-switching node | Technology | 116 |
48,582,546 | https://en.wikipedia.org/wiki/Trimble%20ASCII%20Interface%20Protocol | The Trimble ASCII Interface Protocol is a digital communication interface which uses printable ASCII characters over a serial link. It is used to communicate with Global Positioning System receivers.
See also
NMEA 0183
NMEA 2000
References
Interfaces
Logical communication interfaces
Serial digital interface
Digit... | Trimble ASCII Interface Protocol | Technology | 60 |
21,931,701 | https://en.wikipedia.org/wiki/Ecclesiastical%20full%20moon | An ecclesiastical full moon is formally the 14th day of the ecclesiastical lunar month (an ecclesiastical moon) in an ecclesiastical lunar calendar. The ecclesiastical lunar calendar spans the year with lunar months of 30 and 29 days which are intended to approximate the observed phases of the Moon. Since a true syn... | Ecclesiastical full moon | Physics | 1,230 |
3,283,594 | https://en.wikipedia.org/wiki/INTERBUS | INTERBUS is a serial bus system which transmits data between control systems (e.g., PCs, PLCs, VMEbus computers, robot controllers etc.) and spatially distributed I/O modules that are connected to sensors and actuators (e.g., temperature sensors, position switches).
The INTERBUS system was developed by Phoenix Contact... | INTERBUS | Technology,Engineering | 200 |
565,214 | https://en.wikipedia.org/wiki/7000%20%28number%29 | 7000 (seven thousand) is the natural number following 6999 and preceding 7001.
Selected numbers in the range 7001–7999
7001 to 7099
7021 – triangular number
7043 – Sophie Germain prime
7056 = 842
7057 – cuban prime of the form x = y + 1, super-prime
7073 – Leyland number
7079 – Sophie Germain prime, safe prime
... | 7000 (number) | Mathematics | 1,398 |
62,781,020 | https://en.wikipedia.org/wiki/NearlyFreeSpeech | NearlyFreeSpeech is a privately funded, US-based, low cost web hosting provider and domain name registrar that began in 2002. It was started in response to concerns about the entry of large companies into Internet publishing, and to promote freedom of speech.
History
In September 2006, Jeffrey D. Wheelhouse registere... | NearlyFreeSpeech | Technology | 866 |
2,910,720 | https://en.wikipedia.org/wiki/Casing%20%28borehole%29 | Casing is a large diameter pipe that is assembled and inserted into a recently drilled section of a borehole. Similar to the bones of a spine protecting the spinal cord, casing is set inside the drilled borehole to protect and support the wellstream. The lower portion (and sometimes the entirety) is typically held in ... | Casing (borehole) | Chemistry | 1,435 |
4,677 | https://en.wikipedia.org/wiki/Binomial%20theorem | In elementary algebra, the binomial theorem (or binomial expansion) describes the algebraic expansion of powers of a binomial. According to the theorem, the power expands into a polynomial with terms of the form , where the exponents and are nonnegative integers satisfying and the coefficient of each term is a spe... | Binomial theorem | Mathematics | 3,297 |
75,227,434 | https://en.wikipedia.org/wiki/Efpeglenatide | Efpeglenatide is a GLP-1 receptor agonist under development for the treatment of type 2 diabetes and obesity and reducing the risk of cardiovascular incidents in people with these conditions. Its developer is Hanmi Pharmaceutical.
References
GLP-1 receptor agonists
Experimental diabetes drugs
Peptide therapeutics
Ami... | Efpeglenatide | Chemistry | 65 |
61,863,261 | https://en.wikipedia.org/wiki/Stanley%20Robert%20Hart | Stanley Robert Hart (born 20 June 1935 in Swampscott, Massachusetts) is an American geologist, geochemist, leading international expert on mantle isotope geochemistry, and pioneer of chemical geodynamics.
Biography
Hart graduated from MIT with a bachelor's degree in geology in 1956 and a master's degree in geochemistr... | Stanley Robert Hart | Chemistry | 729 |
10,347,116 | https://en.wikipedia.org/wiki/NGC%204125 | NGC 4125 is an elliptical galaxy in the constellation Draco. It was discovered on 4 January 1850 by English astronomer John Russell Hind.
On 28 May 2016, the telescope KAIT discovered the supernova SN 2016coj (type Ia, mag. 14.8) in this galaxy. After detection, it became brighter over the course of several days. It ... | NGC 4125 | Astronomy | 143 |
36,387,287 | https://en.wikipedia.org/wiki/C20H17F3N2O4 | {{DISPLAYTITLE:C20H17F3N2O4}}
The molecular formula C20H17F3N2O4 (molar mass: 406.355 g/mol) may refer to:
Floctafenine
Tasquinimod
Molecular formulas | C20H17F3N2O4 | Physics,Chemistry | 62 |
34,028,000 | https://en.wikipedia.org/wiki/HIP%205158%20c | HIP 5158 c is an extrasolar planet, orbiting the 10th magnitude K-type main sequence star HIP 5158 about 135 lightyears away from Earth, in the constellation Cetus.
It orbits its primary star at an average distance (semi-major axis) of 7.7 AU. The actual orbital period is unknown, but is estimated to be somewhere in b... | HIP 5158 c | Astronomy | 162 |
47,447,624 | https://en.wikipedia.org/wiki/Penicillium%20rubefaciens | Penicillium rubefaciens is a species of fungus in the genus Penicillium which has been isolated from sandy soil.
References
Further reading
rubefaciens
Fungi described in 1982
Fungus species | Penicillium rubefaciens | Biology | 43 |
21,045,118 | https://en.wikipedia.org/wiki/Haefliger%20structure | In mathematics, a Haefliger structure on a topological space is a generalization of a foliation of a manifold, introduced by André Haefliger in 1970. Any foliation on a manifold induces a special kind of Haefliger structure, which uniquely determines the foliation.
Definition
A codimension- Haefliger structure on a to... | Haefliger structure | Mathematics | 651 |
3,420,533 | https://en.wikipedia.org/wiki/Entrainment%20%28hydrodynamics%29 | Entrainment is the transport of fluid across an interface between two bodies of fluid by a shear-induced turbulent flux. Entrainment is important in turbulent jets, plumes, and gravity currents, and is an ongoing topic of research.
History
The entrainment hypothesis was first used as a model for flow in plumes by G. ... | Entrainment (hydrodynamics) | Chemistry,Engineering | 321 |
353,697 | https://en.wikipedia.org/wiki/Sonic%20hedgehog%20protein | Sonic hedgehog protein (SHH) is encoded for by the SHH gene. The protein is named after the video game character Sonic the Hedgehog.
This signaling molecule is key in regulating embryonic morphogenesis in all animals. SHH controls organogenesis and the organization of the central nervous system, limbs, digits and many... | Sonic hedgehog protein | Chemistry,Biology | 4,899 |
53,706,715 | https://en.wikipedia.org/wiki/Event%20storming | Event storming is a workshop-based method to quickly find out what is happening in the domain of a software program.
Compared to other methods it is extremely lightweight and intentionally requires no support by a computer.
The result is expressed in sticky notes on a wide wall.
The business process is "stormed out" a... | Event storming | Engineering | 562 |
16,735,911 | https://en.wikipedia.org/wiki/Jupiter%20radius | The Jupiter radius or Jovian radius ( or ) has a value of , or 11.2 Earth radii () (one Earth radius equals ). The Jupiter radius is a unit of length used in astronomy to describe the radii of gas giants and some exoplanets. It is also used in describing brown dwarfs.
The general shape of the planet Jupiter has been ... | Jupiter radius | Astronomy,Mathematics | 347 |
8,447,410 | https://en.wikipedia.org/wiki/Complementarity-determining%20region | Complementarity-determining regions (CDRs) are polypeptide segments of the variable chains in immunoglobulins (antibodies) and T cell receptors, generated by B-cells and T-cells respectively. CDRs are where these molecules bind to their specific antigen and their structure/sequence determines the binding activity of th... | Complementarity-determining region | Chemistry,Biology | 878 |
54,507,206 | https://en.wikipedia.org/wiki/Dual%20photon | In theoretical physics, the dual photon is a hypothetical elementary particle that is a dual of the photon under electric–magnetic duality which is predicted by some theoretical models, including M-theory.
It has been shown that including magnetic monopole in Maxwell's equations introduces a singularity. The only way ... | Dual photon | Physics,Astronomy | 665 |
73,964,415 | https://en.wikipedia.org/wiki/NATO%20Star | The NATO Star is a sculpture situated in the court of honor of the North Atlantic Treaty Organization's (NATO) headquarters in Brussels, Belgium.
The sculpture was unveiled in 1971. It symbolises the bond between Europe and North America, and is inspired by the alliance's flag, which was introduced in 1953.
At NATO'... | NATO Star | Mathematics | 153 |
29,449,732 | https://en.wikipedia.org/wiki/Nissan%20VRH%20engine | The Nissan VRH engine family consists of several racing engines built by Nissan Motor Company beginning in the late 1980s. All VRH engines are in a V8 configuration, with either natural aspiration or forced induction. Some VRH engines are loosely based on Nissan's production V8 engine blocks, including the VH and VK en... | Nissan VRH engine | Technology | 1,046 |
12,122,477 | https://en.wikipedia.org/wiki/C2H5NO2 | {{DISPLAYTITLE:C2H5NO2}}
The molecular formula C2H5NO2 (molar mass: 75.07 g/mol, exact mass: 75.0320 u) may refer to:
Acetohydroxamic acid
Ethyl nitrite
Glycine
Methyl carbamate
Nitroethane | C2H5NO2 | Chemistry | 72 |
8,997,695 | https://en.wikipedia.org/wiki/Brass%20model | Brass models are scale models typically of railroad equipment, bridges and occasionally of buildings, made from brass or similar alloys. Although die-cast or plastic models have made considerable advances in late 1990s and continue to improve, brass models offer finer details. Brass models, considered to be collector's... | Brass model | Physics | 1,163 |
10,948,856 | https://en.wikipedia.org/wiki/Wildlife%20of%20Gabon | The wildlife of Gabon is composed of its flora and fauna. Gabon is a largely low-lying country with a warm, humid climate. Much of the country is still covered by tropical rainforest and there are also grasslands, savannas, large rivers and coastal lagoons.
Overview
Wildlife includes forest elephants, forest buffalos,... | Wildlife of Gabon | Biology | 567 |
39,491,679 | https://en.wikipedia.org/wiki/Transition%20metal%20thiolate%20complex | Transition metal thiolate complexes are metal complexes containing thiolate ligands. Thiolates are ligands that can be classified as soft Lewis bases. Therefore, thiolate ligands coordinate most strongly to metals that behave as soft Lewis acids as opposed to those that behave as hard Lewis acids. Most complexes cont... | Transition metal thiolate complex | Chemistry,Biology | 936 |
30,581,559 | https://en.wikipedia.org/wiki/POSIX%20terminal%20interface | The POSIX terminal interface is the generalized abstraction, comprising both an application programming interface for programs, and a set of behavioural expectations for users of a terminal, as defined by the POSIX standard and the Single Unix Specification. It is a historical development from the terminal interfaces ... | POSIX terminal interface | Technology | 5,352 |
3,701,507 | https://en.wikipedia.org/wiki/Mecanum%20wheel | A Mecanum wheel is an omnidirectional wheel design for a land-based vehicle to move in any direction. It is sometimes called the Swedish wheel or Ilon wheel after its inventor, Bengt Erland Ilon (1923–2008), who conceived of the concept while working as an engineer with the Swedish company Mecanum AB, and patented it i... | Mecanum wheel | Engineering | 1,014 |
48,724,986 | https://en.wikipedia.org/wiki/Uromycladium%20tepperianum | Uromycladium tepperianum is a rust fungus that infects over 100 species of Acacia and related genera including Paraserianthes in Australia, south-east Asia, the south Pacific and New Zealand. The acacia gall rust fungus species Uromycladium tepperianum has been introduced to South Africa as a biological control on the... | Uromycladium tepperianum | Biology | 332 |
748,931 | https://en.wikipedia.org/wiki/Slide%20show | A slide show, or slideshow, is a presentation of a series of still images (slides) on a projection screen or electronic display device, typically in a prearranged sequence. The changes may be automatic and at regular intervals or they may be manually controlled by a presenter or the viewer. Slide shows originally consi... | Slide show | Technology | 1,544 |
58,429,169 | https://en.wikipedia.org/wiki/Tim%20Peters%20%28software%20engineer%29 | Tim Peters is a software developer who is known for creating the Timsort hybrid sorting algorithm and for his major contributions to the Python programming language and its original CPython implementation. A pre-1.0 CPython user, he was among the group of early adopters who contributed to the detailed design of the lan... | Tim Peters (software engineer) | Technology | 373 |
5,864,407 | https://en.wikipedia.org/wiki/Jervine | Jervine is a steroidal alkaloid with molecular formula C27H39NO3 which is derived from the plant genus Veratrum. Similar to cyclopamine, which also occurs in the genus Veratrum, it is a teratogen implicated in birth defects when consumed by animals during a certain period of their gestation.
Physiological effects
Je... | Jervine | Chemistry | 209 |
898,732 | https://en.wikipedia.org/wiki/Tensiometer%20%28surface%20tension%29 | In surface science, a tensiometer is a measuring instrument used to measure the surface tension () of liquids or surfaces. Tensiometers are used in research and development laboratories to determine the surface tension of liquids like coatings, lacquers or adhesives. A further application field of tensiometers is the m... | Tensiometer (surface tension) | Physics,Chemistry,Materials_science | 788 |
24,376,770 | https://en.wikipedia.org/wiki/Molecular%20Membrane%20Biology | Molecular Membrane Biology is a peer-reviewed scientific journal that publishes review articles of biomembranes at the molecular level. It is published by Taylor & Francis. The editor-in-chief is Vincent Postis.
External links
Academic journals established in 1978
Molecular and cellular biology journals
Taylor & Fr... | Molecular Membrane Biology | Chemistry | 69 |
11,144,474 | https://en.wikipedia.org/wiki/Light-gated%20ion%20channel | Light-gated ion channels are a family of ion channels regulated by electromagnetic radiation. Other gating mechanisms for ion channels include voltage-gated ion channels, ligand-gated ion channels, mechanosensitive ion channels, and temperature-gated ion channels. Most light-gated ion channels have been synthesized in ... | Light-gated ion channel | Chemistry | 1,190 |
5,112,021 | https://en.wikipedia.org/wiki/2%20Centauri | 2 Centauri is a single star in the southern constellation of Centaurus, located approximately 183 light-years from Earth. It has the Bayer designation g Centauri; 2 Centauri is the Flamsteed designation. This object is visible to the naked eye as faint, red-hued star with an apparent visual magnitude of 4.19. It is mov... | 2 Centauri | Astronomy | 294 |
36,541,240 | https://en.wikipedia.org/wiki/Ceramic%20mixing%20technology | Ceramic mixing technology is used to mix and blend ceramics to create end products such as: ceramic powder blends, injection molding feedstock, electronics, decorative finishes, refractory linings, batteries and fuel cells, thermally conductive pastes, investment casting slurries, dental ceramics and advanced composite... | Ceramic mixing technology | Physics,Engineering | 87 |
56,446,915 | https://en.wikipedia.org/wiki/Lamb%20surface | In fluid dynamics, Lamb surfaces are smooth, connected orientable two-dimensional surfaces, which are simultaneously stream-surfaces and vortex surfaces, named after the physicist Horace Lamb. Lamb surfaces are orthogonal to the Lamb vector everywhere, where and are the vorticity and velocity field, respectively. Th... | Lamb surface | Chemistry,Engineering | 100 |
26,979,533 | https://en.wikipedia.org/wiki/Waiter%20Rule | The Waiter Rule refers to a common belief that one's true character can be gleaned from how one treats staff or service workers, such as a "waiter". The rule was one of William H. Swanson's 33 Unwritten Rules of Management, which was copied from Dave Barry's version: "If someone is nice to you but rude to the waiter, t... | Waiter Rule | Biology | 91 |
31,921,181 | https://en.wikipedia.org/wiki/OrientDB | OrientDB is an open source NoSQL database management system written in Java. It is a Multi-model database, supporting graph, document and object models, the relationships are managed as in graph databases with direct connections between records. It supports schema-less, schema-full and schema-mixed modes. It has a stro... | OrientDB | Mathematics | 957 |
64,031,732 | https://en.wikipedia.org/wiki/The%20History%20of%20Mathematical%20Tables | The History of Mathematical Tables: from Sumer to Spreadsheets is an edited volume in the history of mathematics on mathematical tables. It was edited by Martin Campbell-Kelly, Mary Croarken, Raymond Flood, and Eleanor Robson, developed out of the presentations at a conference on the subject organised in 2001 by the Br... | The History of Mathematical Tables | Mathematics | 603 |
57,246,115 | https://en.wikipedia.org/wiki/C1orf27 | Uncharacterized protein Chromosome 1 Open Reading Frame 27 is a protein in humans, encoded by the C1orf27 gene. It is accession number NM_017847. This is a membrane protein that is 3926 base pairs long with the most extensive string of amino acids being 454aa long. C1orf27 exhibits cytoplasmic expression in epidermal t... | C1orf27 | Biology | 1,283 |
8,940,073 | https://en.wikipedia.org/wiki/Jetstream%20furnace | Jetstream furnaces (later tempest wood-burning boilers), were an advanced design of wood-fired water heaters conceived by Dr. Richard Hill of the University of Maine in Orono, Maine, USA. The design heated a house to prove the theory, then, with government funding, became a commercial product.
Wood-burning water furn... | Jetstream furnace | Chemistry,Engineering | 1,008 |
3,569,469 | https://en.wikipedia.org/wiki/SOS%20%28paper-and-pencil%20game%29 | SOS is paper and pencil game for two or more players. It is similar to tic-tac-toe and dots and boxes, but has much greater complexity.
SOS is a combinatorial game when played with two players. In terms of game theory, it is a zero-sum, sequential game with perfect information.
Gameplay
Before play begins, a square g... | SOS (paper-and-pencil game) | Mathematics | 375 |
43,364,288 | https://en.wikipedia.org/wiki/Xiaomi%20Mi%204 | The Xiaomi Mi 4 () is a smartphone developed by the Chinese electronics manufacturer Xiaomi for its high-end smartphone line, and was released in August 2014. Xiaomi held an event to formally introduce the high-end phone, and its complementary smart-accessory, the Xiaomi MiBand, during the Xiaomi New Product Launch Eve... | Xiaomi Mi 4 | Technology | 979 |
244,305 | https://en.wikipedia.org/wiki/Contention%20free%20pollable | Contention-free pollable (CF-Pollable) is a state of operation for wireless networking nodes. The condition is saying that the node is able to use the Point Coordination Function, as opposed to the Distributed Coordination Function, within a wireless LAN.
A device that is able to use point coordination function is one... | Contention free pollable | Technology,Engineering | 97 |
42,053,050 | https://en.wikipedia.org/wiki/Tetraanthraporphyrin | Tetraanthraporphyrin, or tetraanthra[2,3]porphyrin (TAP), is a representative of extended porphyrins.
Despite promising properties, tetraanthraporphyrins have until recently been little studied. As was theoretically predicted,
extension of pi-electronic system results in the case of TAPs in the destabilization of the t... | Tetraanthraporphyrin | Chemistry | 589 |
53,011,652 | https://en.wikipedia.org/wiki/Half%20a%20Moon%20and%20One%20Whole%20Star | Half a Moon and One Whole Star is a 1986 book by Crescent Dragonwagon and illustrator Jerry Pinkney about a girl, Susan, who falls asleep in her bed, while the world continues outside.
Reception
Publishers Weekly in a review of Half a Moon and One Whole Star, wrote " Half A Moon and One Whole Star is an exceptional ch... | Half a Moon and One Whole Star | Biology | 206 |
59,041,446 | https://en.wikipedia.org/wiki/Telmatocola | Telmatocola is a genus of bacteria from the family of Planctomycetaceae with one known species (Telmatocola sphagniphila).
Telmatocola sphagniphila has been isolate from Sphagnum peat from Staroselsky moss from the Tver Region.
See also
List of bacterial orders
List of bacteria genera
References
Bacteria genera
Mo... | Telmatocola | Biology | 88 |
160,220 | https://en.wikipedia.org/wiki/Ratite | Ratites () are a polyphyletic group consisting of all birds within the infraclass Palaeognathae that lack keels and cannot fly. They are mostly large, long-necked, and long-legged, the exception being the kiwi, which is also the only nocturnal extant ratite.
The understanding of relationships within the paleognath cla... | Ratite | Biology | 3,596 |
24,167,903 | https://en.wikipedia.org/wiki/C18H21NO4 | The molecular formula C18H21NO4 (molar mass: 315.36 g/mol) may refer to:
Codeine-N-oxide
Homolycorine
14-Methoxydihydromorphinone
Oxycodone
2C2-NBOMe
Molecular formulas | C18H21NO4 | Physics,Chemistry | 64 |
11,547,963 | https://en.wikipedia.org/wiki/Cryptosporium%20minimum | Cryptosporium minimum is an ascomycete fungus that is a plant pathogen.
References
External links
Index Fungorum
USDA ARS Fungal Database
Fungal plant pathogens and diseases
Enigmatic Ascomycota taxa
Fungi described in 1907
Fungus species | Cryptosporium minimum | Biology | 52 |
10,320,021 | https://en.wikipedia.org/wiki/Triethylaluminium | Triethylaluminium is one of the simplest examples of an organoaluminium compound. Despite its name the compound has the formula Al2(C2H5)6 (abbreviated as Al2Et6 or TEA). This colorless liquid is pyrophoric. It is an industrially important compound, closely related to trimethylaluminium.
Structure and bonding
The str... | Triethylaluminium | Chemistry,Technology | 1,180 |
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