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 |
|---|---|---|---|---|---|
40,904,234 | https://en.wikipedia.org/wiki/Pentacosylic%20acid | Pentacosylic acid, also known as pentacosanoic acid or hyenic acid, is a 25-carbon long-chain saturated fatty acid with the chemical formula .
See also
List of saturated fatty acids
Very long chain fatty acids
List of carboxylic acids
References
Fatty acids
Alkanoic acids | Pentacosylic acid | Chemistry | 66 |
11,655,832 | https://en.wikipedia.org/wiki/Transverse%20measure | In mathematics, a measure on a real vector space is said to be transverse to a given set if it assigns measure zero to every translate of that set, while assigning finite and positive (i.e. non-zero) measure to some compact set.
Definition
Let V be a real vector space together with a metric space structure with respe... | Transverse measure | Physics,Mathematics | 347 |
4,888,685 | https://en.wikipedia.org/wiki/Process%20analytical%20technology | Process analytical technology (PAT) has been defined by the United States Food and Drug Administration (FDA) as a mechanism to design, analyze, and control pharmaceutical manufacturing processes through the measurement of critical process parameters (CPP) which affect the critical quality attributes (CQA).
The concept... | Process analytical technology | Engineering | 1,041 |
3,240,022 | https://en.wikipedia.org/wiki/Gliese%20667 | Gliese 667 (142 G. Scorpii) is a triple-star system in the constellation Scorpius lying at a distance of about from Earth. All three of the stars have masses smaller than the Sun. There is a 12th-magnitude star close to the other three, but it is not gravitationally bound to the system. To the naked eye, the system ap... | Gliese 667 | Astronomy | 1,432 |
4,952,436 | https://en.wikipedia.org/wiki/Thread%20%28online%20communication%29 | Conversation threading is a feature used by many email clients, bulletin boards, newsgroups, and Internet forums in which the software aids the user by visually grouping messages with their replies. These groups are called a conversation, topic thread, or simply a thread. A discussion forum, e-mail client or news clien... | Thread (online communication) | Technology | 1,966 |
352,783 | https://en.wikipedia.org/wiki/Phylogenesis | Phylogenesis (from Greek φῦλον phylon "tribe" + γένεσις genesis "origin") is the biological process by which a taxon (of any rank) appears. The science that studies these processes is called phylogenetics.
These terms may be confused with the term phylogenetics, the application of molecular - analytical methods (i.e. ... | Phylogenesis | Biology | 635 |
50,014,417 | https://en.wikipedia.org/wiki/Tashkent%20Planetarium | Tashkent Planetarium is one of the newest constructions in Uzbekistan, and is visited by local people and tourists. Tashkent Planetarium provides visitors with the opportunity to look at outer space, even in the morning, and enlarge their knowledge about the cosmos and the whole universe.
About
Tashkent Planetarium ... | Tashkent Planetarium | Astronomy | 319 |
43,389,485 | https://en.wikipedia.org/wiki/Rhetorical%20structure%20theory | Rhetorical structure theory (RST) is a theory of text organization that describes relations that hold between parts of text. It was originally developed by William Mann, Sandra Thompson, Christian M. I. M. Matthiessen and others at the University of Southern California's Information Sciences Institute (ISI) and defined... | Rhetorical structure theory | Technology | 745 |
48,997,198 | https://en.wikipedia.org/wiki/Sodium%20lauryl%20sulfoacetate | Sodium lauryl sulfoacetate (SLSA) or lathanol is an organic compound used in many cleaning and hygiene products as an anionic surfactant. Also it is used as in sodium citrate/sodium lauryl sulfoacetate/glycerol laxative products.
References
Detergents
Esters
Dodecyl esters | Sodium lauryl sulfoacetate | Chemistry,Technology | 75 |
5,548,333 | https://en.wikipedia.org/wiki/Specialty%20engineering | In the domain of systems engineering, Specialty Engineering is defined as and includes the engineering disciplines that are not typical of the main engineering effort. More common engineering efforts in systems engineering such as hardware, software, and human factors engineering may be used as major elements in a maj... | Specialty engineering | Engineering | 311 |
39,647,486 | https://en.wikipedia.org/wiki/Ministry%20of%20Energy%20and%20Minerals | The Ministry of Energy and Minerals was the government ministry of Tanzania responsible for facilitating the development of the energy and mineral sectors.
The Ministry was ultimately split in 2017 by President John Magufuli to tighten supervision on the two industries.
References
External links
E
Tanzania
Tanza... | Ministry of Energy and Minerals | Engineering | 59 |
4,066,199 | https://en.wikipedia.org/wiki/Frenkel%20defect | In crystallography, a Frenkel defect is a type of point defect in crystalline solids, named after its discoverer Yakov Frenkel. The defect forms when an atom or smaller ion (usually cation) leaves its place in the structure, creating a vacancy and becomes an interstitial by lodging in a nearby location. In elemental sy... | Frenkel defect | Chemistry,Materials_science,Engineering | 627 |
81,832 | https://en.wikipedia.org/wiki/Timeline%20of%20Solar%20System%20exploration | This is a timeline of Solar System exploration ordering events in the exploration of the Solar System by date of spacecraft launch.
It includes:
All spacecraft that have left Earth orbit for the purposes of Solar System exploration (or were launched with that intention but failed), including lunar probes.
A small numb... | Timeline of Solar System exploration | Astronomy | 334 |
54,025,008 | https://en.wikipedia.org/wiki/Chandrasekhar%20virial%20equations | In astrophysics, the Chandrasekhar virial equations are a hierarchy of moment equations of the Euler equations, developed by the Indian American astrophysicist Subrahmanyan Chandrasekhar, and the physicist Enrico Fermi and Norman R. Lebovitz.
Mathematical description
Consider a fluid mass of volume with density an... | Chandrasekhar virial equations | Physics,Chemistry,Engineering | 497 |
45,031,863 | https://en.wikipedia.org/wiki/Liquid%20biopsy | A liquid biopsy, also known as fluid biopsy or fluid phase biopsy, is the sampling and analysis of non-solid biological tissue, primarily blood. Like traditional biopsy, this type of technique is mainly used as a diagnostic and monitoring tool for diseases such as cancer, with the added benefit of being largely non-inv... | Liquid biopsy | Chemistry | 715 |
24,713,216 | https://en.wikipedia.org/wiki/Guide%20rail | A guide rail is a device or mechanism to direct products, vehicles or other objects through a channel, conveyor, roadway or rail system.
Several types of guide rails exist and may be associated with:
Factory or production line conveyors
Power tools, such as table saws
Elevator or lift shafts
Roadways and bridges ... | Guide rail | Physics | 460 |
16,291,039 | https://en.wikipedia.org/wiki/NGC%204889 | NGC 4889 (also known as Caldwell 35) is an E4 supergiant elliptical galaxy. It was discovered in 1785 by the British astronomer Frederick William Herschel I, who catalogued it as a bright, nebulous patch. The brightest galaxy within the northern Coma Cluster, it is located at a median distance of 94 million parsecs (30... | NGC 4889 | Astronomy | 1,807 |
13,792,647 | https://en.wikipedia.org/wiki/LanguageWare | LanguageWare is a natural language processing (NLP) technology developed by IBM, which allows applications to process natural language text. It comprises a set of Java libraries that provide a range of NLP functions: language identification, text segmentation/tokenization, normalization, entity and relationship extract... | LanguageWare | Technology | 693 |
67,416,519 | https://en.wikipedia.org/wiki/Ultrafilter%20on%20a%20set | In the mathematical field of set theory, an ultrafilter on a set is a maximal filter on the set In other words, it is a collection of subsets of that satisfies the definition of a filter on and that is maximal with respect to inclusion, in the sense that there does not exist a strictly larger collection of subsets... | Ultrafilter on a set | Mathematics | 5,075 |
7,617,805 | https://en.wikipedia.org/wiki/Starvation%20response | Starvation response in animals (including humans) is a set of adaptive biochemical and physiological changes, triggered by lack of food or extreme weight loss, in which the body seeks to conserve energy by reducing metabolic rate and/or non-resting energy expenditure to prolong survival and preserve body fat and lean m... | Starvation response | Chemistry,Biology | 2,460 |
62,693,840 | https://en.wikipedia.org/wiki/Soda%20machine%20%28home%20appliance%29 | A soda machine or soda maker is a home appliance for carbonating tap water by using carbon dioxide from a pressurized cartridge. The machine is often delivered with flavorings; these can be added to the water after it is carbonated to make soda, such as orange, lemon, or cola flavours. Some brands are able to directly ... | Soda machine (home appliance) | Physics,Technology | 763 |
14,428,627 | https://en.wikipedia.org/wiki/Tachykinin%20receptor%202 | Substance-K receptor is a protein that in humans is encoded by the TACR2 gene.
Function
This gene belongs to a family of genes that function as receptors for tachykinins. Receptor affinities are specified by variations in the 5'-end of the sequence. The receptors belonging to this family are characterized by inter... | Tachykinin receptor 2 | Chemistry | 310 |
32,753,209 | https://en.wikipedia.org/wiki/Iron%E2%80%93sulfur%20cluster%20biosynthesis | In biochemistry, the iron–sulfur cluster biosynthesis describes the components and processes involved in the biosynthesis of iron–sulfur proteins. The topic is of interest because these proteins are pervasive. The iron sulfur proteins contain iron–sulfur clusters, some with elaborate structures, that feature iron and... | Iron–sulfur cluster biosynthesis | Biology | 512 |
964,170 | https://en.wikipedia.org/wiki/NGC%203628 | NGC 3628, also known as the Hamburger Galaxy or Sarah's Galaxy, is an unbarred spiral galaxy about 35 million light-years away in the constellation Leo. It was discovered by William Herschel in 1784. It has an approximately 300,000 light-years long tidal tail. Along with M65 and M66, NGC 3628 forms the Leo Triplet, a ... | NGC 3628 | Astronomy | 277 |
24,136,891 | https://en.wikipedia.org/wiki/OGML | Ontology Grounded Metalanguage (OGML) is a metalanguage like MOF. The goal of OGML is to tackle the difficulties of MOF: linear modeling architecture, ambiguous constructs and incomprehensible/unclear architecture.
OGML provides a nested modeling architecture with three fixed layers (models, languages and metalanguage... | OGML | Engineering | 267 |
52,174,112 | https://en.wikipedia.org/wiki/Multibeam%20Corporation | Multibeam is an American corporation that engages in the design, manufacture, and sale of semiconductor processing equipment used in the fabrication of integrated circuits. Headquartered in Santa Clara, in the Silicon Valley, Multibeam is led by Dr. David K. Lam, the founder and first CEO of Lam Research.
History
Mul... | Multibeam Corporation | Materials_science,Engineering | 511 |
671,711 | https://en.wikipedia.org/wiki/Hilbert%E2%80%93Smith%20conjecture | In mathematics, the Hilbert–Smith conjecture is concerned with the transformation groups of manifolds; and in particular with the limitations on topological groups G that can act effectively (faithfully) on a (topological) manifold M. Restricting to groups G which are locally compact and have a continuous, faithful gro... | Hilbert–Smith conjecture | Physics,Mathematics | 315 |
29,474,944 | https://en.wikipedia.org/wiki/White%20Camel%20award | The "White Camel" award is given to important contributors to the Perl Programming Language community.
The awards were initiated by Perl Mongers and O'Reilly & Associates at The Perl Conference in 1999. Today, The Perl Foundation acknowledges these exceptional individuals annually.
By Year
1999: Tom Christiansen, K... | White Camel award | Technology | 427 |
7,249,174 | https://en.wikipedia.org/wiki/Blondie24 | Blondie24 is an artificial intelligence checkers-playing computer program named after the screen name used by a team led by David B. Fogel. The purpose was to determine the effectiveness of an artificial intelligence checkers-playing computer program.
The screen name was used on The Zone, an internet boardgaming site ... | Blondie24 | Mathematics | 463 |
2,007,949 | https://en.wikipedia.org/wiki/Somnology | Somnology is the scientific study of sleep. It includes clinical study and treatment of sleep disorders and irregularities. Sleep medicine is a subset of somnology. Hypnology has a similar meaning but includes hypnotic phenomena.
History
After the invention of the EEG, the stages of sleep were determined in 1936 by Ha... | Somnology | Biology | 2,462 |
42,046,875 | https://en.wikipedia.org/wiki/Nilpotent%20algebra | In mathematics, specifically in ring theory, a nilpotent algebra over a commutative ring is an algebra over a commutative ring, in which for some positive integer n every product containing at least n elements of the algebra is zero. The concept of a nilpotent Lie algebra has a different definition, which depends upon ... | Nilpotent algebra | Mathematics | 349 |
307,623 | https://en.wikipedia.org/wiki/Inhaler%20spacer | A spacer is a device used to increase the ease of giving aerosolized medication from a metered-dose inhaler (MDI). It adds space in the form of a tube or "chamber" between the mouth and canister of medication. Most spacers have a one-way valve that allows the person to inhale the medication while inhaling and exhaling ... | Inhaler spacer | Biology | 666 |
33,892,594 | https://en.wikipedia.org/wiki/TinKode | Răzvan Manole Cernăianu (born 7 February 1992), nicknamed "TinKode", is a Romanian computer security consultant and hacker, known for gaining unauthorized access to computer systems of many different organizations, and posting proof of his exploits online. He commonly hacks high-profile websites that have SQL injection... | TinKode | Technology | 499 |
399,104 | https://en.wikipedia.org/wiki/48%20%28number%29 | 48 (forty-eight) is the natural number following 47 and preceding 49. It is one third of a gross, or four dozens.
In mathematics
48 is a highly composite number, and a Størmer number.
By a classical result of Honsberger, the number of incongruent integer-sided triangles of perimeter is given by the equations for ... | 48 (number) | Mathematics | 209 |
673,057 | https://en.wikipedia.org/wiki/Memory%20transfer | Memory transfer was a biological process proposed by James V. McConnell and others in the 1960s. Memory transfer proposes a chemical basis for memory termed memory RNA which can be passed down through flesh instead of an intact nervous system. Since RNA encodes information and living cells produce and modify RNA in rea... | Memory transfer | Chemistry,Biology | 318 |
44,847,976 | https://en.wikipedia.org/wiki/6005A%20aluminium%20alloy | 6005A aluminium alloy is an alloy in the wrought aluminium-magnesium-silicon family (6000 or 6xxx series). It is closely related, but not identical, to 6005 aluminium alloy. Between those two alloys, 6005A is more heavily alloyed, but the difference does not make a marked impact on material properties. It can be formed... | 6005A aluminium alloy | Chemistry | 447 |
99,491 | https://en.wikipedia.org/wiki/Exponentiation | In mathematics, exponentiation, denoted , is an operation involving two numbers: the base, , and the exponent or power, . When is a positive integer, exponentiation corresponds to repeated multiplication of the base: that is, is the product of multiplying bases:
In particular, .
The exponent is usually shown as a s... | Exponentiation | Mathematics | 9,523 |
58,651,153 | https://en.wikipedia.org/wiki/Aspergillus%20sulphureoviridis | Aspergillus sulphureoviridis is a species of fungus in the genus Aspergillus. It is from the Nidulantes section. The species was first described in 2016. It has been isolated from indoor air in Denmark.
Growth and morphology
A. sulphureoviridis has been cultivated on both Czapek yeast extract agar (CYA) plates and Ma... | Aspergillus sulphureoviridis | Biology | 125 |
29,406,238 | https://en.wikipedia.org/wiki/YPEL3 | Yippee-like 3 (Drosophila) is a protein that in humans is encoded by the YPEL3 gene. YPEL3 has growth inhibitory effects in normal and tumor cell lines. One of five family members (YPEL1-5), YPEL3 was named in reference to its Drosophila melanogaster orthologue. Initially discovered in a gene expression profiling assay... | YPEL3 | Chemistry,Biology | 1,491 |
30,581,850 | https://en.wikipedia.org/wiki/JIT%20spraying | JIT spraying is a class of computer security exploit that circumvents the protection of address space layout randomization and data execution prevention by exploiting the behavior of just-in-time compilation. It has been used to exploit the PDF format and Adobe Flash.
A just-in-time compiler (JIT) by definition produc... | JIT spraying | Technology | 485 |
3,659,844 | https://en.wikipedia.org/wiki/Rankine%27s%20method | Rankine's method or tangential angle method is an angular technique for laying out circular curves by a combination of chaining and angles at circumference, fully exploiting the theodolite and making a substantial improvement in accuracy and productivity over existing methods. This method requires access to only one ro... | Rankine's method | Engineering | 266 |
8,529,968 | https://en.wikipedia.org/wiki/Bayesian%20regret | In stochastic game theory, Bayesian regret is the expected difference ("regret") between the utility of a Bayesian strategy and that of the optimal strategy (the one with the highest expected payoff).
The term Bayesian refers to Thomas Bayes (1702–1761), who proved a special case of what is now called Bayes' theorem, ... | Bayesian regret | Mathematics,Engineering | 233 |
4,493,880 | https://en.wikipedia.org/wiki/SN%202003B | SN 2003B was a type II supernova that was discovered in NGC 1097 by Robert Owen Evans on January 5, 2003.
References
See also
SN 2006X
Spiral Galaxy NGC 1097
External links
Light curves and spectra on the Open Supernova Catalog
Supernova 2003B
IAUC
Fornax
20030105
Supernova remnants
Supernovae | SN 2003B | Chemistry,Astronomy | 72 |
8,868,773 | https://en.wikipedia.org/wiki/Authenticated%20Identity%20Body | Authenticated Identity Body or AIB is a method allowing parties in a network to share authenticated identity, thereby increasing the integrity of their SIP communications. AIBs extend other authentication methods like S/MIME to provide a more specific mechanism to introduce integrity to SIP transmissions. Parties trans... | Authenticated Identity Body | Mathematics,Technology,Engineering | 327 |
4,047,274 | https://en.wikipedia.org/wiki/Gold-containing%20drugs | Gold-containing drugs are pharmaceuticals that contain gold. Sometimes these species are referred to as "gold salts". "Chrysotherapy" and "aurotherapy" are the applications of gold compounds to medicine. Research on the medicinal effects of gold began in 1935, primarily to reduce inflammation and to slow disease pro... | Gold-containing drugs | Chemistry | 854 |
10,531,718 | https://en.wikipedia.org/wiki/Graph%20cuts%20in%20computer%20vision | As applied in the field of computer vision, graph cut optimization can be employed to efficiently solve a wide variety of low-level computer vision problems (early vision), such as image smoothing, the stereo correspondence problem, image segmentation, object co-segmentation, and many other computer vision problems tha... | Graph cuts in computer vision | Mathematics,Engineering | 1,925 |
19,085,993 | https://en.wikipedia.org/wiki/Alexander%20Davydov | Alexander Sergeevich Davydov (, ) (26 December 1912 – 19 February 1993) was a Soviet and Ukrainian physicist. Davydov graduated from Moscow State University in 1939. In 1963-1990 he was Director of Institute for Theoretical Physics of the Ukrainian Academy of Sciences.
His main contributions were in theory of absorpt... | Alexander Davydov | Physics,Biology | 524 |
13,089,065 | https://en.wikipedia.org/wiki/RGS4 | Regulator of G protein signaling 4 also known as RGP4 is a protein that in humans is encoded by the RGS4 gene. RGP4 regulates G protein signaling.
Function
Regulator of G protein signalling (RGS) family members are regulatory molecules that act as GTPase activating proteins (GAPs) for G alpha subunits of heterotrime... | RGS4 | Chemistry | 318 |
68,572,993 | https://en.wikipedia.org/wiki/Pirellulales | Pirellulales is an order of bacteria.
Phylogeny
The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI)
See also
List of bacterial orders
List of bacteria genera
References
Planctomycetota
Bacteria orde... | Pirellulales | Biology | 73 |
20,381,835 | https://en.wikipedia.org/wiki/Educational%20inequality | Educational Inequality is the unequal distribution of academic resources, including but not limited to school funding, qualified and experienced teachers, books, physical facilities and technologies, to socially excluded communities. These communities tend to be historically disadvantaged and oppressed. Individuals bel... | Educational inequality | Biology | 15,207 |
12,082,283 | https://en.wikipedia.org/wiki/Human%20vestigiality | In the context of human evolution, vestigiality involves those traits occurring in humans that have lost all or most of their original function through evolution. Although structures called vestigial often appear functionless, they may retain lesser functions or develop minor new ones. In some cases, structures once id... | Human vestigiality | Biology | 4,968 |
20,446,429 | https://en.wikipedia.org/wiki/Rally%20%27round%20the%20flag%20effect | The rally 'round the flag effect, also referred to as the rally 'round the flag syndrome, is a concept used in political science and international relations to explain increased short-run popular support of a country's government or political leaders during periods of international crisis or war. Because the effect can... | Rally 'round the flag effect | Biology | 2,744 |
61,400,489 | https://en.wikipedia.org/wiki/Phaeton%20complex | The Phaeton complex is a psychological condition described by Maryse Choisy as a "painful combination of thoughts and emotions caused by the absence, loss, coldness, or traumatizing behavior of one or both parents, resulting in frustration and aggression".
The theory was devised by Lucille Iremonger, who in 1970 studi... | Phaeton complex | Biology | 401 |
78,164,918 | https://en.wikipedia.org/wiki/Etamicastat | Etamicastat (; developmental code name BIA 5-453) is a peripherally selective dopamine β-hydroxylase (DBH) inhibitor which was under development for the treatment of hypertension (high blood pressure) and heart failure but was never marketed. The peripheral selectivity of etamicastat is in contrast to the earlier DBH i... | Etamicastat | Chemistry | 163 |
22,356,796 | https://en.wikipedia.org/wiki/Potting%20and%20stamping | Potting and stamping is a modern name for one of the 18th-century processes for refining pig iron without the use of charcoal.
Inventors
The process was devised by Charles Wood of Lowmill, Egremont in Cumberland and his brother John Wood of Wednesbury and patented by them in 1761 and 1763. The process was improved by ... | Potting and stamping | Chemistry,Engineering | 259 |
5,824,808 | https://en.wikipedia.org/wiki/Bounded%20quantifier | In the study of formal theories in mathematical logic, bounded quantifiers (a.k.a. restricted quantifiers) are often included in a formal language in addition to the standard quantifiers "∀" and "∃". Bounded quantifiers differ from "∀" and "∃" in that bounded quantifiers restrict the range of the quantified variable. T... | Bounded quantifier | Mathematics | 915 |
4,387,316 | https://en.wikipedia.org/wiki/Optical%20mineralogy | Optical mineralogy is the study of minerals and rocks by measuring their optical properties. Most commonly, rock and mineral samples are prepared as thin sections or grain mounts for study in the laboratory with a petrographic microscope. Optical mineralogy is used to identify the mineralogical composition of geologica... | Optical mineralogy | Physics | 3,053 |
69,319,155 | https://en.wikipedia.org/wiki/TOLIMAN | The TOLIMAN (Telescope for Orbit Locus Interferometric Monitoring of our Astronomical Neighbourhood) space telescope is a low-cost mission concept aimed at detecting of exoplanets via the astrometry method, and specifically targeting the Alpha Centauri system. TOLIMAN will focus on stars within 10 parsecs (32.6 light y... | TOLIMAN | Astronomy | 199 |
10,826 | https://en.wikipedia.org/wiki/Fax | Fax (short for facsimile), sometimes called telecopying or telefax (short for telefacsimile), is the telephonic transmission of scanned printed material (both text and images), normally to a telephone number connected to a printer or other output device. The original document is scanned with a fax machine (or a telecop... | Fax | Technology | 6,387 |
56,452,747 | https://en.wikipedia.org/wiki/Cryogenic%20electron%20microscopy | Cryogenic electron microscopy (cryo-EM) is a cryomicroscopy technique applied on samples cooled to cryogenic temperatures. For biological specimens, the structure is preserved by embedding in an environment of vitreous ice. An aqueous sample solution is applied to a grid-mesh and plunge-frozen in liquid ethane or a mix... | Cryogenic electron microscopy | Chemistry,Biology | 1,834 |
9,026,091 | https://en.wikipedia.org/wiki/Batteryless%20radio | A batteryless radio is a type of radio receiver that does not require the use of a battery to provide it with electrical power.
Originally this referred to units which could be used directly by AC mains supply (mains radio); it can also refer to units which do not require a power source at all, except for the power th... | Batteryless radio | Physics,Chemistry,Mathematics | 790 |
44,038,801 | https://en.wikipedia.org/wiki/Smart%20inorganic%20polymer | Smart inorganic polymers (SIPs) are hybrid or fully inorganic polymers with tunable (smart) properties such as stimuli responsive physical properties (shape, conductivity, rheology, bioactivity, self-repair, sensing etc.). While organic polymers are often petrol-based, the backbones of SIPs are made from elements other... | Smart inorganic polymer | Chemistry | 2,008 |
73,535,300 | https://en.wikipedia.org/wiki/Infertility%20and%20childlessness%20stigmas | Infertility and childlessness stigmas are social and cultural codes that identify the inability to have children as a disgraceful state of being. Broadly speaking, in many cultures, "Demonstrating fertility is necessary to be considered a full adult, a real man or woman, and to leave a legacy after death," and thus the... | Infertility and childlessness stigmas | Biology | 1,246 |
1,030,916 | https://en.wikipedia.org/wiki/Nod%20factor | Nod factors (nodulation factors or NF), are signaling molecules produced by soil bacteria known as rhizobia in response to flavonoid exudation from plants under nitrogen limited conditions. Nod factors initiate the establishment of a symbiotic relationship between legumes and rhizobia by inducing nodulation. Nod factor... | Nod factor | Chemistry,Biology | 1,025 |
208,155 | https://en.wikipedia.org/wiki/12%20%28number%29 | 12 (twelve) is the natural number following 11 and preceding 13.
Twelve is the 3rd superior highly composite number, the 3rd colossally abundant number, the 5th highly composite number, and is divisible by the numbers from 1 to 4, and 6, a large number of divisors comparatively.
It is central to many systems of time... | 12 (number) | Mathematics | 2,289 |
64,649,745 | https://en.wikipedia.org/wiki/NGC%204701 | NGC 4701 is an unbarred spiral galaxy located in the constellation Virgo. Its velocity with respect to the cosmic microwave background is 1054 ± 24km/s, which corresponds to a Hubble distance of . However, 10 non-redshift measurements give a greater distance of .It was discovered by the German-British astronomer Willia... | NGC 4701 | Astronomy | 225 |
706,728 | https://en.wikipedia.org/wiki/Robert%20Abbott%20%28game%20designer%29 | Robert Abbott (March 2, 1933February 20, 2018) was an American game inventor, sometimes referred to by fans as "The Official Grand Old Man of Card Games". Though early in his life he worked as a computer programmer with the IBM 360 assembly language, he began designing games in the 1950s.
Two of his more popular creat... | Robert Abbott (game designer) | Mathematics | 2,254 |
58,947,971 | https://en.wikipedia.org/wiki/NGC%203558 | NGC 3558 is an elliptical or a lenticular galaxy located 440 million light-years away in the constellation Ursa Major. It was discovered by the astronomer Heinrich d'Arrest on April 15, 1866. It is a member of the galaxy cluster Abell 1185 and is classified as a LINER galaxy.
See also
List of NGC objects (3001–4000)... | NGC 3558 | Astronomy | 114 |
4,084,112 | https://en.wikipedia.org/wiki/Division%20%28horticulture%29 | Division, in horticulture and gardening, is a method of asexual plant propagation, where the plant (usually an herbaceous perennial) is broken up into two or more parts. Each part has an intact root and crown. The technique is of ancient origin, and has long been used to propagate bulbs such as garlic and saffron. Anot... | Division (horticulture) | Biology | 597 |
37,584,586 | https://en.wikipedia.org/wiki/Abductin | Abductin is a naturally occurring elastomeric protein found in the hinge ligament of bivalve mollusks. It is unique as it is the only natural elastomer with compressible elasticity, as compared to resilin, spider silk, and elastin. Its name was proposed from the fact that it functions as the abductor of the valves of b... | Abductin | Physics,Biology | 2,658 |
3,352,095 | https://en.wikipedia.org/wiki/SN%202005cs | SN 2005cs was a supernova in the spiral galaxy M51, known as the Whirlpool Galaxy. It was a type II-P core-collapse supernova, discovered June 28, 2005 by Wolfgang Kloehr, a German amateur astronomer. The event was positioned at an offset of west and south of the galactic nucleus of M51. Based on the data, the explos... | SN 2005cs | Chemistry,Astronomy | 216 |
46,886,823 | https://en.wikipedia.org/wiki/Trichaptum%20imbricatum | Trichaptum imbricatum is a species of fungus in the family Polyporaceae. It is distinguished by its imbricate basidiocarps, white to cream hymenophores, small and regular pores, and scattered and thin-walled cystidia. It was first isolated from China.
References
Further reading
Dai, Yu-Cheng, et al. "Wood-inhabiting ... | Trichaptum imbricatum | Biology | 246 |
40,075,528 | https://en.wikipedia.org/wiki/Sphere%20packing%20in%20a%20sphere | Sphere packing in a sphere is a three-dimensional packing problem with the objective of packing a given number of equal spheres inside a unit sphere. It is the three-dimensional equivalent of the circle packing in a circle problem in two dimensions.
References
Spheres
Packing problems | Sphere packing in a sphere | Mathematics | 53 |
53,572,933 | https://en.wikipedia.org/wiki/Boron%20nitride%20aerogel | Boron nitride aerogel is an aerogel made of highly porous boron nitride (BN). It typically consists of a mixture of deformed boron nitride nanotubes and nanosheets. It can have a density as low as 0.6 mg/cm3 and a specific surface area as high as 1050 m2/g, and therefore has potential applications as an absorbent, cata... | Boron nitride aerogel | Chemistry,Materials_science | 223 |
16,750 | https://en.wikipedia.org/wiki/Kleene%20star | In mathematical logic and computer science, the Kleene star (or Kleene operator or Kleene closure) is a unary operation, either on sets of strings or on sets of symbols or characters. In mathematics,
it is more commonly known as the free monoid construction. The application of the Kleene star to a set is written as . ... | Kleene star | Mathematics,Technology | 1,011 |
33,084,698 | https://en.wikipedia.org/wiki/Yusif%20Mammadaliyev | Yusif Haydar oglu Mammadaliyev (; December 31, 1905 – December 15, 1961) was an Azerbaijani and Soviet chemist. He was a Doctor of Chemistry, academician of the National Academy of Sciences of the Azerbaijan SSR, and was the president of the National Academy of Sciences of the Azerbaijan SSR.
Biography
He was born on ... | Yusif Mammadaliyev | Chemistry | 1,145 |
14,662,101 | https://en.wikipedia.org/wiki/Biositemap | A Biositemap is a way for a biomedical research institution of organisation to show how biological information is distributed throughout their Information Technology systems and networks. This information may be shared with other organisations and researchers.
The Biositemap enables web browsers, crawlers and robots t... | Biositemap | Engineering,Biology | 798 |
51,408,006 | https://en.wikipedia.org/wiki/Haze%20%28optics%29 | There are two different types of haze that can occur in materials:
Reflection haze occurs when light is reflected from a material.
Transmission haze occurs when light passes through a material.
The measurement and control of both types during manufacture is essential to ensure optimum quality, acceptability and suitab... | Haze (optics) | Physics | 2,173 |
20,936,370 | https://en.wikipedia.org/wiki/Timeline%20of%20carbon%20capture%20and%20storage | The milestones for carbon capture and storage show the lack of commercial scale development and implementation of CCS over the years since the first carbon tax was imposed.
The time line of carbon capture and storage announcements and developments follows:
1972:
Since 1972 over 175 million metric tons of carbon dioxi... | Timeline of carbon capture and storage | Engineering | 5,299 |
2,870,720 | https://en.wikipedia.org/wiki/Millefleur | Millefleur, millefleurs or mille-fleur (French mille-fleurs, literally "thousand flowers") refers to a background style of many different small flowers and plants, usually shown on a green ground, as though growing in grass. It is essentially restricted to European tapestry during the late Middle Ages and early Renaiss... | Millefleur | Mathematics | 1,566 |
4,459,380 | https://en.wikipedia.org/wiki/Geometric%20topology%20%28object%29 | In mathematics, the geometric topology is a topology one can put on the set H of hyperbolic 3-manifolds of finite volume.
Use
Convergence in this topology is a crucial ingredient of hyperbolic Dehn surgery, a fundamental tool in the theory of hyperbolic 3-manifolds.
Definition
The following is a definition due to Tro... | Geometric topology (object) | Mathematics | 400 |
48,827,462 | https://en.wikipedia.org/wiki/Flore%20du%20Cambodge%2C%20du%20Laos%20et%20du%20Vi%C3%AAtnam | Flore du Cambodge, du Laos et du Viêtnam is a multi-volume flora describing the vascular plants of Cambodia, Laos, and Vietnam, published by the National Museum of Natural History in Paris since the 1960s. It currently consists of 35 volumes.
Volumes
Volume 35 (2014): Solanaceae
Volume 34 (2014): Polygalaceae
Volume 3... | Flore du Cambodge, du Laos et du Viêtnam | Biology | 735 |
174,292 | https://en.wikipedia.org/wiki/Pierre%20Jean%20Georges%20Cabanis | Pierre Jean Georges Cabanis (; 5 June 1757 – 5 May 1808) was a French physiologist, freemason and materialist philosopher.
Life
Cabanis was born at Cosnac (Corrèze), the son of Jean Baptiste Cabanis (1723–1786), a lawyer and agronomist. At the age of ten, he attended the college of Brives, where he showed great aptit... | Pierre Jean Georges Cabanis | Biology | 1,246 |
52,740,555 | https://en.wikipedia.org/wiki/4-Methoxyestradiol | 4-Methoxyestradiol (4-ME2) is an endogenous, naturally occurring methoxylated catechol estrogen and metabolite of estradiol that is formed by catechol O-methyltransferase via the intermediate 4-hydroxyestradiol. It has estrogenic activity similarly to estrone and 4-hydroxyestrone.
See also
2-Methoxyestradiol
2-Metho... | 4-Methoxyestradiol | Chemistry | 155 |
24,200,775 | https://en.wikipedia.org/wiki/C15H20O | {{DISPLAYTITLE:C15H20O}}
The molecular formula C15H20O (molar mass: 216.319 g/mol, exact mass: 216.1514 u) may refer to:
Curzerene
Hexyl cinnamaldehyde
Mutisianthol
Molecular formulas | C15H20O | Physics,Chemistry | 68 |
5,679,969 | https://en.wikipedia.org/wiki/Block%20and%20bleed%20manifold | A Block and bleed manifold is a hydraulic manifold that combines one or more block/isolate valves, usually ball valves, and one or more bleed/vent valves, usually ball or needle valves, into one component for interface with other components (pressure measurement transmitters, gauges, switches, etc.) of a hydraulic (fl... | Block and bleed manifold | Physics,Chemistry,Engineering | 800 |
68,763,182 | https://en.wikipedia.org/wiki/Pendell%C3%B6sung | The Pendellösung effect or phenomenon is seen in diffraction in which there is a beating in the intensity of electromagnetic waves travelling within a crystal lattice. It was predicted by P. P. Ewald in 1916 and first observed in electron diffraction of magnesium oxide in 1942 by Robert D. Heidenreich and in X-ray diff... | Pendellösung | Physics,Chemistry,Materials_science,Engineering | 265 |
47,622,276 | https://en.wikipedia.org/wiki/Knotted%20polymers | Single Chain Cyclized/Knotted Polymers are a new class of polymer architecture with a general structure consisting of multiple intramolecular cyclization units within a single polymer chain. Such a structure was synthesized via the controlled polymerization of multivinyl monomers, which was first reported in Dr. Wenxin... | Knotted polymers | Chemistry,Materials_science,Engineering | 1,555 |
4,088,703 | https://en.wikipedia.org/wiki/Digital%20handheld%20refractometer | A digital handheld refractometer is an instrument for measuring the refractive index of materials.
Principle of operation
Most operate on the same general critical angle principle as a traditional handheld refractometer. The difference is that light from an LED light source is focused on the underside or a prism eleme... | Digital handheld refractometer | Technology,Engineering | 466 |
44,064,649 | https://en.wikipedia.org/wiki/Table%20computer | A table computer, or a table PC, or a tabletop is a device class of a full-featured large-display portable all-in-one computer with an internal battery. It can either be used on a table's top, hence the name, or carried around the house.
Table computers feature an 18-inch or larger multi-touch touchscreen display, a b... | Table computer | Technology | 218 |
32,683,147 | https://en.wikipedia.org/wiki/Kolmogorov%E2%80%93Zurbenko%20filter | Within statistics, the Kolmogorov–Zurbenko (KZ) filter was first proposed by A. N. Kolmogorov and formally defined by Zurbenko. It is a series of iterations of a moving average filter of length m, where m is a positive, odd integer. The KZ filter belongs to the class of low-pass filters. The KZ filter has two parameter... | Kolmogorov–Zurbenko filter | Engineering | 4,290 |
565,536 | https://en.wikipedia.org/wiki/Bathypelagic%20zone | The bathypelagic zone or bathyal zone (from Greek βαθύς (bathýs), deep) is the part of the open ocean that extends from a depth of below the ocean surface. It lies between the mesopelagic above and the abyssopelagic below. The bathypelagic is also known as the midnight zone because of the lack of sunlight; this featur... | Bathypelagic zone | Physics,Environmental_science | 3,302 |
59,737,151 | https://en.wikipedia.org/wiki/Laccaria%20proxima | Laccaria proxima is a species of edible mushroom in the genus Laccaria from the conifer forest of California, as well as eastern and northern North America.
References
External links
Edible fungi
proxima
Fungus species | Laccaria proxima | Biology | 47 |
55,486,277 | https://en.wikipedia.org/wiki/NGC%202032 | NGC 2032 (also known as ESO 56-EN160 and the Seagull Nebula) is an emission nebula in the Dorado constellation and near the supershell LMC-4 and it consists of NGC 2029, NGC 2035 and NGC 2040. It was first discovered by James Dunlop on 27 September 1826, and John Herschel rerecorded it on 2 November 1834. NGC 2032 is l... | NGC 2032 | Astronomy | 121 |
48,499,549 | https://en.wikipedia.org/wiki/Schoeller-Bleckmann%20Oilfield%20Equipment | Schoeller-Bleckmann Oilfield Equipment AG is an Austrian engineering company that specializes in the production of high-precision components and equipment for the oil and gas industry. SBO products include drill bits, downhole tools, and other specialized equipment used in the exploration and production of oil and gas.... | Schoeller-Bleckmann Oilfield Equipment | Engineering | 328 |
44,860,314 | https://en.wikipedia.org/wiki/Donitriptan | Donitriptan (INN) (code name F-11356) is a triptan drug which was investigated as an antimigraine agent but ultimately was never marketed. It acts as a high-affinity, high-efficacy/near-full agonist of the 5-HT1B (pKi = 9.4–10.1; IA = 94%) and 5-HT1D receptors (pKi = 9.3–10.2; IA = 97%), and is among the most potent of... | Donitriptan | Chemistry | 199 |
371,659 | https://en.wikipedia.org/wiki/Ras%20GTPase | Ras, from "Rat sarcoma virus", is a family of related proteins that are expressed in all animal cell lineages and organs. All Ras protein family members belong to a class of protein called small GTPase, and are involved in transmitting signals within cells (cellular signal transduction). Ras is the prototypical member ... | Ras GTPase | Chemistry | 4,029 |
5,995,612 | https://en.wikipedia.org/wiki/Molecular%20Biology%20of%20the%20Cell | Molecular Biology of the Cell is a biweekly peer-reviewed scientific journal published by the American Society for Cell Biology. It covers research on the molecular basis of cell structure and function. According to the Journal Citation Reports, the journal has a 2012 impact factor of 4.803. It was originally establish... | Molecular Biology of the Cell | Chemistry | 174 |
40,128,229 | https://en.wikipedia.org/wiki/Kurt%20Kosanke | Kurt Kosanke (born ca. 1945) is a German engineer, retired IBM manager, director of the AMICE Consortium and consultant, known for his work in the field of enterprise engineering, Enterprise integration and CIMOSA.
Life and work
Kosanke obtained his Engineering degree from the Physikalisch Technische Lehranstalt in L... | Kurt Kosanke | Engineering | 521 |
27,498,772 | https://en.wikipedia.org/wiki/Vibrational%20temperature | The vibrational temperature is commonly used in thermodynamics, to simplify certain equations. It has units of temperature and is defined as
where is the Boltzmann constant, is the speed of light, is the wavenumber, and (Greek letter nu) is the characteristic frequency of the oscillator.
The vibrational temperat... | Vibrational temperature | Physics,Chemistry | 108 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.