id int64 580 79M | url stringlengths 31 175 | text stringlengths 9 245k | source stringlengths 1 109 | categories stringclasses 160
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55,632,689 | https://en.wikipedia.org/wiki/Sergey%20Kitaev | Sergey Kitaev (Russian: Сергей Владимирович Китаев; born 1 January 1975 in Ulan-Ude) is a Professor of Mathematics at the University of Strathclyde, Glasgow, Scotland.
He obtained his Ph.D. in mathematics from the University of Gothenburg in 2003 under the supervision of Einar Steingrímsson.
Kitaev's research interests... | Sergey Kitaev | Mathematics | 305 |
16,153,400 | https://en.wikipedia.org/wiki/Harding%20test | The term Harding test is generically understood to mean an automatic test for photosensitive epilepsy (PSE), triggered by provocative image sequences in television content. This is properly known as a PSE test since the publication of the Digital Production Partnership (DPP) technical requirements and the DPP PSE Devi... | Harding test | Biology | 747 |
72,255,622 | https://en.wikipedia.org/wiki/Eva%20Zurek | Eva Dagmara Zurek (born 1976) is a theoretical chemist, solid-state physicist and materials scientist. As a professor of chemistry at the University at Buffalo, Zurek studies the electronic structure, properties, and reactivity of a wide variety of materials using quantum mechanical calculations. She is interested in h... | Eva Zurek | Chemistry | 719 |
18,383 | https://en.wikipedia.org/wiki/Leonids | The Leonids ( ) are a prolific annual meteor shower associated with the comet Tempel–Tuttle, and are also known for their spectacular meteor storms that occur about every 33 years. The Leonids get their name from the location of their radiant in the constellation Leo: the meteors appear to radiate from that point in th... | Leonids | Astronomy | 2,223 |
125,769 | https://en.wikipedia.org/wiki/Binding%20energy | In physics and chemistry, binding energy is the smallest amount of energy required to remove a particle from a system of particles or to disassemble a system of particles into individual parts. In the former meaning the term is predominantly used in condensed matter physics, atomic physics, and chemistry, whereas in nu... | Binding energy | Physics,Chemistry,Mathematics | 1,446 |
21,421,469 | https://en.wikipedia.org/wiki/Bicarbonate%20indicator | A hydrogencarbonate indicator (hydrogencarbonate indicator) is a type of pH indicator that is sensitive enough to show a color change as the concentration of carbon dioxide gas in an aqueous solution increases. The indicator is used in photosynthesis and respiration experiments to find out whether carbon dioxide is bei... | Bicarbonate indicator | Physics,Chemistry,Materials_science,Astronomy | 364 |
870,711 | https://en.wikipedia.org/wiki/Triple%20conjunction | A triple conjunction is an astronomical event when two planets or a planet and a star appear to meet each other three times during a brief period, either in opposition or at the time of inferior conjunction, if an inferior planet is involved. The visible movement of the planet or the planets in the sky appears therefor... | Triple conjunction | Astronomy | 1,134 |
11,422,330 | https://en.wikipedia.org/wiki/Tombusvirus%205%E2%80%B2%20UTR | Tombusvirus 5′ UTR is an important cis-regulatory region of the Tombus virus genome.
Tomato bushy stunt virus is the prototype member of the Tombusviridae family. The genome of this virus is positive sense single stranded RNA. Replication occurs via a negative strand RNA intermediate. In addition to viral proteins p3... | Tombusvirus 5′ UTR | Chemistry | 264 |
55,381,816 | https://en.wikipedia.org/wiki/Juan%20de%20Fuca%20Channel | Juan de Fuca Channel is a submarine channel off the shore of Washington state, United States and the Strait of Juan de Fuca.
The geography of Juan de Fuca Channel
The Juan de Fuca Channel is a submarine canyon running from the shelf break, off southern Vancouver Island to Juan de Fuca Strait. The canyon is both narro... | Juan de Fuca Channel | Chemistry | 1,021 |
14,725,503 | https://en.wikipedia.org/wiki/Alpha-2-HS-glycoprotein | alpha-2-HS-glycoprotein (AHSG, Alpha-2-Heremans-Schmid Glycoprotein) also known as fetuin-A is a protein that in humans is encoded by the AHSG gene. Fetuin-A belongs to the fetuin class of plasma binding proteins and is more abundant in fetal than adult blood.
Function
Alpha2-HS glycoprotein, a glycoprotein present ... | Alpha-2-HS-glycoprotein | Chemistry | 621 |
34,167,371 | https://en.wikipedia.org/wiki/Georgy%20Pfeiffer | Georgy Pfeiffer also Yurii or Yury Pfeiffer (, , 23 December 1872 – 10 October 1946) was a Russian Empire and Soviet mathematician of German descent. Pfeiffer was known as a specialist in the field of integration of differential equations and systems of partial differential equations. He was also interested in algebrai... | Georgy Pfeiffer | Mathematics | 303 |
11,101,076 | https://en.wikipedia.org/wiki/Inch%20of%20water | Inches of water is a non-SI unit for pressure. It is also given as inches of water gauge (iwg or in.w.g.), inches water column (inch wc, in. WC, " wc, etc. or just wc or WC), inAq, Aq, or inHO. The units are conventionally used for measurement of certain pressure differentials such as small pressure differences acros... | Inch of water | Mathematics | 477 |
227,686 | https://en.wikipedia.org/wiki/Lennard-Jones%20potential | In computational chemistry, molecular physics, and physical chemistry, the Lennard-Jones potential (also termed the LJ potential or 12-6 potential; named for John Lennard-Jones) is an intermolecular pair potential. Out of all the intermolecular potentials, the Lennard-Jones potential is probably the one that has been t... | Lennard-Jones potential | Physics,Chemistry,Materials_science,Mathematics,Engineering | 7,200 |
8,008,410 | https://en.wikipedia.org/wiki/Downtime | In computing and telecommunications, downtime (also (system) outage or (system) drought colloquially) is a period when a system is unavailable. The unavailability is the proportion of a time-span that a system is unavailable or offline.
This is usually a result of the system failing to function because of an unplanned ... | Downtime | Technology,Engineering | 2,760 |
44,915,309 | https://en.wikipedia.org/wiki/Psi2%20Draconis | {{DISPLAYTITLE:Psi2 Draconis}}
Psi2 Draconis is a solitary giant star in the northern circumpolar constellation of Draco, also designated 34 Draconis. It lies just over a degree east of the brighter Psi1 Draconis. Psi2 Draconis has a yellow-white hue and is dimly visible to the naked eye with an apparent visual magnit... | Psi2 Draconis | Astronomy | 336 |
11,225,948 | https://en.wikipedia.org/wiki/Spitzenk%C3%B6rper | The Spitzenkörper (German for 'pointed body', SPK) is a structure found in fungal hyphae that is the organizing center for hyphal growth and morphogenesis. It consists of many small vesicles and is present in growing hyphal tips, during spore germination, and where branch formation occurs. Its position in the hyphal ti... | Spitzenkörper | Biology | 465 |
2,426,119 | https://en.wikipedia.org/wiki/Criticality%20matrix | In operations research and engineering, a criticality matrix is a representation (often graphical) of failure modes along with their probabilities and severities.
Severity may be classified in four categories, with Level I as most severe or "catastrophic"; Level II for "critical"; Level III for "marginal"; and Level I... | Criticality matrix | Engineering | 89 |
32,497,546 | https://en.wikipedia.org/wiki/Fern%20sports | Fern sports are plants that show marked change from the normal type or parent stock as a result of mutation. The term Morphotype is also used for any of a group of different types of individuals of the same species in a population. Fern fronds in sports are typically altered in several ways, such as the frond apex divi... | Fern sports | Biology | 494 |
850,663 | https://en.wikipedia.org/wiki/Trust%20%28social%20science%29 | Trust is the belief that another person will do what is expected. It brings with it a willingness for one party (the trustor) to become vulnerable to another party (the trustee), on the presumption that the trustee will act in ways that benefit the trustor. In addition, the trustor does not have control over the action... | Trust (social science) | Technology,Biology | 5,484 |
38,763,918 | https://en.wikipedia.org/wiki/Truncated%20infinite-order%20square%20tiling | In geometry, the truncated infinite-order square tiling is a uniform tiling of the hyperbolic plane. It has Schläfli symbol of t{4,∞}.
Uniform color
In (*∞44) symmetry this tiling has 3 colors. Bisecting the isosceles triangle domains can double the symmetry to *∞42 symmetry.
Symmetry
The dual of the tiling represen... | Truncated infinite-order square tiling | Physics | 352 |
49,127,301 | https://en.wikipedia.org/wiki/MuSIASEM | MuSIASEM or Multi-Scale Integrated Analysis of Societal and Ecosystem Metabolism, is a method of accounting used to analyse socio-ecosystems and to simulate possible patterns of development. It is based on maintaining coherence across scales and different dimensions (e.g. economic, demographic, energetic) of quantitati... | MuSIASEM | Chemistry,Engineering,Environmental_science | 833 |
4,754,533 | https://en.wikipedia.org/wiki/Particle%20counter | A particle counter is used for monitoring and diagnosing particle contamination within specific clean media, including air, water, and chemicals. Particle counters are used to support clean manufacturing practices in a variety of industrial applications. Clean manufacturing is required for the production of many electr... | Particle counter | Chemistry,Mathematics,Technology,Engineering | 4,317 |
28,958,968 | https://en.wikipedia.org/wiki/Aptina | Aptina Imaging Corporation was a company that sold CMOS imaging products. Their CMOS sensors were used in the Nikon V1 (10.1 MP, CX format, 16.9x17.9 mm), Nikon J1, and Nikon V2. By 2009 year Aptina had a 16% share of the CMOS image sensors market, with revenue estimated at $671 million. The company was acquired in 20... | Aptina | Engineering | 587 |
28,893,297 | https://en.wikipedia.org/wiki/Aminoacetonitrile | Aminoacetonitrile is the organic compound with the formula . The compound is a colorless liquid. It is unstable at room temperature, owing to the incompatibility of the amine nucleophile and the nitrile electrophile. For this reason it is usually encountered as the chloride and bisulfate salts of the ammonium derivat... | Aminoacetonitrile | Chemistry | 309 |
223,430 | https://en.wikipedia.org/wiki/Monito%20del%20monte | The monito del monte (Dromiciops gliroides), or colocolo opossum, is a diminutive species of marsupial native only to south-western South America (Argentina and Chile). It is the only extant species in the ancient order Microbiotheria, and the sole New World representative of the superorder Australidelphia, being more... | Monito del monte | Biology | 1,903 |
39,374,174 | https://en.wikipedia.org/wiki/Fermat%27s%20and%20energy%20variation%20principles%20in%20field%20theory | In general relativity, light is assumed to propagate in a vacuum along a null geodesic in a pseudo-Riemannian manifold. Besides the geodesics principle in a classical field theory there exists Fermat's principle for stationary gravity fields.
Fermat's principle
In case of conformally stationary spacetime with coord... | Fermat's and energy variation principles in field theory | Physics,Mathematics | 979 |
53,658,651 | https://en.wikipedia.org/wiki/Magnetic%20drug%20delivery | Magnetic nanoparticle-based drug delivery is a means in which magnetic particles such as iron oxide nanoparticles are a component of a delivery vehicle for magnetic drug delivery, due to the simplicity with which the particles can be drawn to (external) magnetopuissant targets. Magnetic nanoparticles can impart imaging... | Magnetic drug delivery | Chemistry | 338 |
26,831,746 | https://en.wikipedia.org/wiki/Metaterol | Metaterol (), also known as isofenefrine, isopropylnoradrianol, and 3,β-dihydroxy-N-isopropylphenethylamine, is a sympathomimetic and bronchodilator of the phenethylamine family that was never marketed. It is structurally related to norfenefrine, phenylephrine, and etilefrine.
References
Abandoned drugs
Bronchodilato... | Metaterol | Chemistry | 128 |
72,718 | https://en.wikipedia.org/wiki/Prototype | A prototype is an early sample, model, or release of a product built to test a concept or process. It is a term used in a variety of contexts, including semantics, design, electronics, and software programming. A prototype is generally used to evaluate a new design to enhance precision by system analysts and users. Pro... | Prototype | Engineering | 3,146 |
31,848,417 | https://en.wikipedia.org/wiki/Upper%20motor%20neuron%20syndrome | Upper motor neuron syndrome (UMNS) is the motor control changes that can occur in skeletal muscle after an upper motor neuron lesion.
Following upper motor neuron lesions, affected muscles potentially have many features of altered performance including:
weakness (decreased ability for the muscle to generate force)
dec... | Upper motor neuron syndrome | Biology | 1,501 |
244,391 | https://en.wikipedia.org/wiki/Flash%20flood | A flash flood is a rapid flooding of low-lying areas: washes, rivers, dry lakes and depressions. It may be caused by heavy rain associated with a severe thunderstorm, hurricane, or tropical storm, or by meltwater from ice and snow. Flash floods may also occur after the collapse of a natural ice or debris dam, or a huma... | Flash flood | Chemistry,Engineering,Environmental_science | 1,347 |
56,526,740 | https://en.wikipedia.org/wiki/Edward%20Je%C5%82owicki | Edward Bożeniec Jełowicki born 1803 in Hubnik now in Western Ukraine, died 10 November 1848 in Vienna, was a Polish landowner, decorated Colonel in the Polish army, insurgent, officer in the Foreign Legion and commander of the Vienna artillery. He was an engineer and inventor.
Biography
Family
Descended from Ruthenia... | Edward Jełowicki | Engineering | 789 |
47,369,768 | https://en.wikipedia.org/wiki/Artmotion | Artmotion Ltd. is a Swiss-based data housing provider. It operates two data centers near the Swiss Alps that are designed for security-seeking businesses, motivated by the country's political neutrality and ironclad privacy laws.
History
Artmotion was founded in 2000 by Mateo Meier, who is also the current CEO of the ... | Artmotion | Technology | 340 |
7,300,829 | https://en.wikipedia.org/wiki/Pi%20Josephson%20junction | A Josephson junction (JJ) is a quantum mechanical device which is made of two superconducting electrodes separated by a barrier (thin insulating tunnel barrier, normal metal, semiconductor, ferromagnet, etc.).
A Josephson junction is a Josephson junction in which the Josephson phase φ equals in the ground state, i.e... | Pi Josephson junction | Physics,Materials_science,Engineering | 1,369 |
6,084,563 | https://en.wikipedia.org/wiki/Plutonium-240 | Plutonium-240 ( or Pu-240) is an isotope of plutonium formed when plutonium-239 captures a neutron. The detection of its spontaneous fission led to its discovery in 1944 at Los Alamos and had important consequences for the Manhattan Project.
240Pu undergoes spontaneous fission as a secondary decay mode at a small but ... | Plutonium-240 | Chemistry | 763 |
20,554,835 | https://en.wikipedia.org/wiki/Atriplex%20truncata | Atriplex truncata is a species of saltbush known by the common names wedgeleaf saltbush, wedgescale, and wedge orach, native to western North America from British Columbia to California and to New Mexico. It grows in montane to desert habitats with saline soils, such as dry lake beds.
Description
Atriplex truncata is... | Atriplex truncata | Chemistry | 252 |
613,749 | https://en.wikipedia.org/wiki/Entablature | An entablature (; nativization of Italian , from "in" and "table") is the superstructure of moldings and bands which lies horizontally above columns, resting on their capitals. Entablatures are major elements of classical architecture, and are commonly divided into the architrave (the supporting member immediately ab... | Entablature | Technology,Engineering | 795 |
662,229 | https://en.wikipedia.org/wiki/MOST%20%28spacecraft%29 | The Microvariability and Oscillations of Stars/Microvariabilité et Oscillations STellaire (MOST), was Canada's first space telescope. Up until nearly 10 years after its launch it was also the smallest space telescope in orbit (for which its creators nicknamed it the "Humble Space Telescope", in reference to one of the... | MOST (spacecraft) | Astronomy | 1,329 |
37,195,431 | https://en.wikipedia.org/wiki/Epsilon%20Hydri | Epsilon Hydri, Latinized from ε Hydri, is a single, blue-white hued star in the southern constellation of Hydrus. It is a faint star with an apparent visual magnitude of 4.12, but it can be seen with the naked eye. Measurements made by the Hipparcos spacecraft showed an annual parallax shift of 21.48 mas, which provide... | Epsilon Hydri | Astronomy | 318 |
31,556,270 | https://en.wikipedia.org/wiki/Olimunllum | Olimunllum is a thermoplastic composite material containing a quasi-isotropic endless carbon fiber reinforcement and a semi-crystalline thermoplastic polymer matrix from the Polyaryletherketone (PAEK) family.
Recycling
Endless fiber-reinforced PAEK composite, as used in the Olimunllum sheets, can be recycled by choppi... | Olimunllum | Chemistry | 187 |
41,957 | https://en.wikipedia.org/wiki/Electrical%20impedance | In electrical engineering, impedance is the opposition to alternating current presented by the combined effect of resistance and reactance in a circuit.
Quantitatively, the impedance of a two-terminal circuit element is the ratio of the complex representation of the sinusoidal voltage between its terminals, to the com... | Electrical impedance | Physics,Mathematics | 3,945 |
39,183,674 | https://en.wikipedia.org/wiki/Bioregenerative%20life%20support%20system | Bioregenerative life support systems (BLSS) are artificial ecosystems consisting of many complex symbiotic relationships among higher plants, animals, and microorganisms. As the most advanced life support technology, BLSS can provide a habitation environment similar to Earth's biosphere for space missions with extended... | Bioregenerative life support system | Astronomy | 175 |
60,602,011 | https://en.wikipedia.org/wiki/Ana%20Ach%C3%BAcarro | Ana Achúcarro Jiménez (born 1962) is a Spanish researcher, academic, and professor of particle astrophysics and quantum field theory at the University of Leiden in Leiden, Netherlands. Her research considers the early universe, supergravity, black holes and solitons.
Early life and education
Achúcarro graduated from... | Ana Achúcarro | Physics | 603 |
679,929 | https://en.wikipedia.org/wiki/Stone%20%28unit%29 | The stone or stone weight (abbreviation: st.) is an English and British imperial unit of mass equal to 14 avoirdupois pounds (6.35 kg). The stone continues in customary use in the United Kingdom and Ireland for body weight.
England and other Germanic-speaking countries of Northern Europe formerly used various standard... | Stone (unit) | Physics,Mathematics | 1,986 |
19,320,593 | https://en.wikipedia.org/wiki/Imazapyr | Imazapyr is a non-selective herbicide used for the control of a broad range of weeds including terrestrial annual and perennial grasses and broadleaved herbs, woody species, and riparian and emergent aquatic species. It is used to control annual and perennial grass and broadleaved weeds, brush, vines and many deciduou... | Imazapyr | Chemistry,Biology | 246 |
7,219,407 | https://en.wikipedia.org/wiki/Open-Architecture-System | Open-Architecture-System (OAS) is the main User interface and synthesizer software of the Wersi keyboard line. OAS improves on prior organ interfaces by allowing the user to add sounds, rhythms, third party programs and future software enhancements without changing hardware. Compared to previous organs which relied on ... | Open-Architecture-System | Technology | 258 |
33,615,399 | https://en.wikipedia.org/wiki/Panathlon%20International | Panathlon International (PI) is a global umbrella organization of "Panathlon clubs", which are nonprofit non-governmental organizations promoting sports ethics and fair play and opposing discrimination and politicisation in sport. Panathalon International is recognized by the International Olympic Committee (IOC). It i... | Panathlon International | Biology | 736 |
52,942,558 | https://en.wikipedia.org/wiki/Dobesilic%20acid | Dobesilic acid is a chemical compound with the molecular formula . It is classified as both a phenol and a sulfonic acid.
Uses
Salts of dobesilic are used as pharmaceutical drugs. The calcium salt, calcium dobesilate, is used as a vasoprotective drug. The diethylamine salt, etamsylate, is an antihemorrhagic agent.
... | Dobesilic acid | Chemistry | 95 |
3,562,876 | https://en.wikipedia.org/wiki/Diffraction%20spike | Diffraction spikes are lines radiating from bright light sources, causing what is known as the starburst effect or sunstars in photographs and in vision. They are artifacts caused by light diffracting around the support vanes of the secondary mirror in reflecting telescopes, or edges of non-circular camera apertures, a... | Diffraction spike | Physics,Chemistry,Materials_science | 1,143 |
64,027,350 | https://en.wikipedia.org/wiki/Biodiversity%20and%20conservation%20in%20Manitoba | Manitoba is home to a variety of ecosystems across the province that need to be considered in development and conservation plans. There are terrestrial ecosystems, which includes prairies, boreal forest, and tundra. Manitoba is also the home to a number of aquatic ecosystems, including wetlands, rivers, and lakes. Ther... | Biodiversity and conservation in Manitoba | Biology | 806 |
553,950 | https://en.wikipedia.org/wiki/X%20band | The X band is the designation for a band of frequencies in the microwave radio region of the electromagnetic spectrum. In some cases, such as in communication engineering, the frequency range of the X band is rather indefinitely set at approximately 7.0–11.2 GHz. In radar engineering, the frequency range is specified b... | X band | Physics | 1,190 |
1,043,263 | https://en.wikipedia.org/wiki/Excitotoxicity | In excitotoxicity, nerve cells suffer damage or death when the levels of otherwise necessary and safe neurotransmitters such as glutamate become pathologically high, resulting in excessive stimulation of receptors. For example, when glutamate receptors such as the NMDA receptor or AMPA receptor encounter excessive lev... | Excitotoxicity | Chemistry,Biology,Environmental_science | 2,357 |
1,904,007 | https://en.wikipedia.org/wiki/Wave%20front%20set | In mathematical analysis, more precisely in microlocal analysis, the wave front (set) WF(f) characterizes the singularities of a generalized function f, not only in space, but also with respect to its Fourier transform at each point. The term "wave front" was coined by Lars Hörmander around 1970.
Introduction
In more... | Wave front set | Mathematics | 1,220 |
22,459,005 | https://en.wikipedia.org/wiki/EPPML | EPPML (Extensible Postal Product Model and Language) is a conceptual model for the interactions between parties of a postal communication system. Examples of such parties are mailers, posts, mail aggregators, providers of postal services and equipment and recipients. They create, publish, consume and deliver postal pro... | EPPML | Technology | 749 |
313,384 | https://en.wikipedia.org/wiki/Long%20division | In arithmetic, long division is a standard division algorithm suitable for dividing multi-digit Hindu-Arabic numerals (positional notation) that is simple enough to perform by hand. It breaks down a division problem into a series of easier steps.
As in all division problems, one number, called the dividend, is divided... | Long division | Mathematics | 4,541 |
399,127 | https://en.wikipedia.org/wiki/51%20%28number%29 | 51 (fifty-one) is the natural number following 50 and preceding 52.
In mathematics
Fifty-one is
a pentagonal number as well as a centered pentagonal number and an 18-gonal number
the 6th Motzkin number, telling the number of ways to draw non-intersecting chords between any six points on a circle's boundary, no matt... | 51 (number) | Mathematics | 228 |
10,204,161 | https://en.wikipedia.org/wiki/Syncrude%20Tailings%20Dam | The Syncrude Tailings Dam, impounding the Mildred Lake Settling Basin (MLSB), is an embankment dam that is, by volume of construction material, the largest earth structure in the world in 2001. It is located north of Fort McMurray, Alberta, Canada, at the northern end of the Mildred Lake lease area owned by Syncrude C... | Syncrude Tailings Dam | Technology,Engineering | 1,514 |
32,505 | https://en.wikipedia.org/wiki/Vapor | In physics, a vapor (American English) or vapour (Commonwealth English; see spelling differences) is a substance in the gas phase at a temperature lower than its critical temperature, which means that the vapor can be condensed to a liquid by increasing the pressure on it without reducing the temperature of the vapor. ... | Vapor | Physics,Chemistry | 771 |
66,240,342 | https://en.wikipedia.org/wiki/Conbercept | Conbercept, sold under the commercial name Lumitin, is a novel vascular endothelial growth factor (VEGF) inhibitor used to treat neovascular age-related macular degeneration (AMD) and diabetic macular edema (DME). The anti-VEGF was approved for the treatment of neovascular AMD by the China State FDA (CFDA) in December ... | Conbercept | Biology | 937 |
44,570,580 | https://en.wikipedia.org/wiki/Tylopilus%20rufonigricans | Tylopilus rufonigricans is a bolete fungus in the family Boletaceae found in the Pakaraima Mountains of Guyana. It was described as new to science in 1999 by mycologist Terry Henkel. Its fruit bodies have convex to flattened caps measuring in diameter; caps can form a central depression in age. The cap surface is cov... | Tylopilus rufonigricans | Biology | 248 |
44,301,990 | https://en.wikipedia.org/wiki/MicroSolutions%20Backpack | MicroSolutions Backpack was a line of peripheral devices introduced in 1990 allowing users to attach a peripheral drive, namely hard drives, CD-ROM drives, and DVD±RW drives, to their system. When the original model was released, USB ports did not yet exist, so the drive plugged into a system's printer port. Backpacks ... | MicroSolutions Backpack | Technology | 134 |
38,613,120 | https://en.wikipedia.org/wiki/Lithium%20molybdenum%20purple%20bronze | Lithium molybdenum purple bronze is a chemical compound with formula , that is, a mixed oxide of molybdenum and lithium. It can be obtained as flat crystals with a purple-red color and metallic sheen (hence the "purple bronze" name).
This compound is one of several molybdenum bronzes with general formula where A is a... | Lithium molybdenum purple bronze | Chemistry | 1,203 |
27,646,402 | https://en.wikipedia.org/wiki/Microbial%20arene%20oxidation | Microbial arene oxidation (MAO) refers to the process by which microbial enzymes convert aromatic compounds into more oxidized products. The initial intermediates are arene oxides. A number of oxidized products are possible, the most commonly employed for organic synthesis are cis-1,2-dihydroxy-cyclohexa-3,5-dienes ("... | Microbial arene oxidation | Chemistry | 882 |
42,369,267 | https://en.wikipedia.org/wiki/Perstraction | Perstraction is a membrane extraction process, where two liquid phases are contacted across a membrane. The desired species in the feed (solute), selectively crosses the membrane into the extracting solution. Perstraction was originally developed to overcome the downsides of liquid–liquid extraction, for example extrac... | Perstraction | Chemistry | 1,234 |
7,297,180 | https://en.wikipedia.org/wiki/Digital%20Earth | Digital Earth is the name given to a concept by former US vice president Al Gore in 1998, describing a virtual representation of the Earth that is georeferenced and connected to the world's digital knowledge archives.
Concept
Original vision
In a speech prepared for the California Science Center in Los Angeles on Jan... | Digital Earth | Technology | 3,166 |
916,555 | https://en.wikipedia.org/wiki/Corkscrew%20%28program%29 | Corkscrew is a computer program, written by Patrick Padgett, that enables the user to tunnel SSH connections through most HTTP and HTTPS proxy servers. Combined with features of SSH such as port forwarding, this can allow many types of services to be run securely over the SSH via HTTP connections.
Supported proxy serv... | Corkscrew (program) | Mathematics | 98 |
23,041,996 | https://en.wikipedia.org/wiki/Pivhydrazine | {{Drugbox
| verifiedrevid = 451218082
| IUPAC_name = ''N-benzyl-2,2-dimethyl-propanehydrazide
| image = Pivalylbenzhydrazine.svg
| image_class = skin-invert-image
| width = 150px
| tradename =
| pregnancy_category =
| legal_status = Rx-only
| routes_of_administration = Oral
| bioavailability =
| metabolism =
... | Pivhydrazine | Chemistry | 461 |
13,982,712 | https://en.wikipedia.org/wiki/BE%26K | BE&K, Inc., was a global engineering and construction company based in Birmingham, Alabama, United States.
History
BE&K, Inc. was founded in 1972 and named after its founders: Peter Bolvig, William Edmonds, and Ted Kennedy. BE&K was acquired by KBR, Inc. in 2008.
Operations
BE&K, Inc. operated in commercial and indu... | BE&K | Engineering | 430 |
59,627,363 | https://en.wikipedia.org/wiki/Cancer%20selection | Cancer selection can be viewed through the lens of natural selection. The animal host's body is the environment which applies the selective pressures upon cancer cells. The most fit cancer cells will have traits that will allow them to out compete other cancer cells which they are related to, but are genetically diff... | Cancer selection | Biology | 1,566 |
12,661,414 | https://en.wikipedia.org/wiki/Field%20emitter%20array | A field emitter array (FEA) is a particular form of large-area field electron source. FEAs are prepared on a silicon substrate by lithographic techniques similar to those used in the fabrication of integrated circuits. Their structure consists of many individual, similar, small-field electron emitters, usually organiz... | Field emitter array | Physics | 707 |
53,535,975 | https://en.wikipedia.org/wiki/Bloomsbury%20Dispensary%20for%20the%20Relief%20of%20the%20Sick%20Poor | The Bloomsbury Dispensary for the Relief of the Sick Poor was an institution founded in 1801 to provide medical aid and suitable nourishment to the poor people of that part of London.
George Pinckard founded the dispensary on 26 October 1801 and became its first physician, remaining there for thirty years. It was esta... | Bloomsbury Dispensary for the Relief of the Sick Poor | Chemistry | 93 |
21,011,497 | https://en.wikipedia.org/wiki/Circinus%20X-1 | Circinus X-1 is an X-ray binary star system that includes a neutron star. Observation of Circinus X-1 in July 2007 revealed the presence of X-ray jets normally found in black hole systems; it is the first of the sort to be discovered that displays this similarity to black holes. Circinus X-1 may be among the youngest X... | Circinus X-1 | Astronomy | 569 |
4,677,186 | https://en.wikipedia.org/wiki/Wien%20approximation | Wien's approximation (also sometimes called Wien's law or the Wien distribution law) is a law of physics used to describe the spectrum of thermal radiation (frequently called the blackbody function). This law was first derived by Wilhelm Wien in 1896. The equation does accurately describe the short-wavelength (high-f... | Wien approximation | Physics | 521 |
5,037,234 | https://en.wikipedia.org/wiki/Hyalin | Hyalin is a protein released from the cortical granules of a fertilized animal egg. The released hyalin modifies the extracellular matrix of the fertilized egg to block other sperm from binding to the egg, and is known as the slow-block to polyspermy. All animals have this slow-block mechanism.
Hyalin is a large, ac... | Hyalin | Biology | 1,489 |
11,711,579 | https://en.wikipedia.org/wiki/Salamandrella%20keyserlingii | Salamandrella keyserlingii, the Siberian salamander, is a species of salamander found in Northeast Asia. It lives in wet woods and riparian groves.
Distribution
It is found primarily in Siberia east of the Sosva River and the Urals, in the East Siberian Mountains, including the Verkhoyansk Range, northeast to the Ana... | Salamandrella keyserlingii | Chemistry | 620 |
37,653,046 | https://en.wikipedia.org/wiki/HD%20100307 | HD 100307 is a suspected variable star in the constellation of Hydra. Its apparent magnitude is 6.16, but interstellar dust makes it appear 0.346 magnitudes dimmer than it should be. It is located some 340 light-years (104 parsecs) away, based on parallax.
HD 100307 is a M-type red giant. It has evolved from the main ... | HD 100307 | Astronomy | 146 |
2,902,827 | https://en.wikipedia.org/wiki/81%20Aquarii | 81 Aquarii is a star in the constellation of Aquarius. It has an orange hue and is barely visible to the naked eye with an apparent visual magnitude of 6.23. 81 Aquarii is its Flamsteed designation. The star is located at a distance of approximately 451 light years from the Sun based on parallax, and is drifting furthe... | 81 Aquarii | Astronomy | 222 |
41,823,957 | https://en.wikipedia.org/wiki/The%20Copernican%20Question | The Copernican Question: Prognostication, Skepticism, and Celestial Order is a 704-page book written by Robert S. Westman and published by University of California Press (Berkeley, Los Angeles, London) in 2011 and in 2020 (paperback). The book is a broad historical overview of Europe's astronomical and astrological cul... | The Copernican Question | Astronomy | 3,125 |
2,991,908 | https://en.wikipedia.org/wiki/Area%20compatibility%20factor | In survival analysis, the area compatibility factor, F, is used in indirect standardisation of population mortality rates.
where:
is the standardised central exposed-to risk from age x to x + t for the standard population,
is the central exposed-to risk from age x to x + t for the population under study and
is t... | Area compatibility factor | Mathematics,Environmental_science | 155 |
30,149,926 | https://en.wikipedia.org/wiki/JBoss%20operations%20network | JBoss Operations Network (or JBoss ON or JON) is free software/open-source Java EE-based network management software. JBoss Operations Network is part of the JBoss Enterprise Middleware portfolio of software. JBoss ON is an administration and management platform for the development, testing, deployment, and monitoring ... | JBoss operations network | Engineering | 447 |
78,911,217 | https://en.wikipedia.org/wiki/Alexey%20Dobryden | Alexey Afanasyevich Dobryden (Russian: Алексей Афанасьевич Добрыдень; 20 May 1926 - 9 October 1980) was a Soviet metallurgist and party leader.
Biography
Dobryden was born and raised in Ol'khovatka, Olkhovatsky District, Voronezh Oblast by his parents, Afanasy Andreevich Dobryden and Pelageya Korneevna Dobryden née P... | Alexey Dobryden | Chemistry,Materials_science | 331 |
332,222 | https://en.wikipedia.org/wiki/Hushmail | Hushmail is an encrypted proprietary web-based email service offering PGP-encrypted e-mail and vanity domain service. Hushmail uses OpenPGP standards. If public encryption keys are available to both recipient and sender (either both are Hushmail users or have uploaded PGP keys to the Hush keyserver), Hushmail can conve... | Hushmail | Mathematics | 841 |
27,490,882 | https://en.wikipedia.org/wiki/Goodwin%20model%20%28biology%29 | In biology, the Goodwin model describes negative feedback oscillators in cellular systems, for example, circadian rhythms or enzymatic regulation (such as lactose in bacteria). The Goodwin model, though, shows no stable limit cycles.
limit cycles can exist, see references. But not in the original Goodwin model which ... | Goodwin model (biology) | Biology | 75 |
20,240,791 | https://en.wikipedia.org/wiki/Z5%20%28computer%29 | The Z5 was a computer designed by Konrad Zuse and manufactured by Zuse KG following an order by Ernst Leitz GmbH in Wetzlar in 1950. The computer was delivered in July 1953 and was the first commercial built-to-order mainframe in Germany. The computer was purchased to help with the design of optical lens systems.
The ... | Z5 (computer) | Technology | 240 |
74,867,869 | https://en.wikipedia.org/wiki/List%20of%20countries%20in%20the%20Americas%20by%20life%20expectancy | This is a list of American countries by life expectancy.
United Nations (2023)
Estimation of the analytical agency of the UN.
UN: Estimate of life expectancy for various ages in 2023
UN: Change of life expectancy from 2019 to 2023
World Bank Group (2022)
Estimation of the World Bank Group for 2022. The data is filt... | List of countries in the Americas by life expectancy | Biology | 190 |
48,571,940 | https://en.wikipedia.org/wiki/Leymann%20Inventory%20of%20Psychological%20Terror | The Swedish psychologist and university professor Heinz Leymann developed the LIPT questionnaire. LIPT stands for Leymann Inventory of Psychological Terror.
Structure
The LIPT questionnaire lists 45 mobbing actions at the workplace. A person is regarded as being bullied if one or more of the 45 actions happen at leas... | Leymann Inventory of Psychological Terror | Biology | 451 |
1,375,317 | https://en.wikipedia.org/wiki/American%20Meteor%20Society | The American Meteor Society, Ltd. (AMS) is a non-profit scientific organization established to encourage and support the research activities of both amateur and professional astronomers who are interested in the field of meteor astronomy. Its affiliates observe, monitor, collect data on, study, and report on meteors, m... | American Meteor Society | Astronomy | 459 |
8,484,738 | https://en.wikipedia.org/wiki/Colby%27s%20Clubhouse | Colby's Clubhouse is an American Christian live-action children's television show that teaches principles from the Bible through songs and everyday situations. The main character is Colby, an anthropomorphic computer. Colby has the entire Bible programmed into his memory. The show was written and produced by Peter and... | Colby's Clubhouse | Technology | 658 |
65,496,203 | https://en.wikipedia.org/wiki/Hemibiotrophs | Hemibiotrophs are the spectrum of plant pathogens, including bacteria, oomycete and a group of plant pathogenic fungi that keep its host alive while establishing itself within the host tissue, taking up the nutrients with brief biotrophic-like phase. It then, in later stages of infection switches to a necrotrophic life... | Hemibiotrophs | Biology | 1,404 |
3,223,425 | https://en.wikipedia.org/wiki/Catchwater | A catchwater device is a large-scale man-made device for catching surface runoff from hills and the sky from precipitation by channeling it to reservoirs for commercial and domestic use later. Freshwater is a scarce natural resource due to pollution, droughts, and overpopulation. Catchwater is a sustainable mechanism t... | Catchwater | Chemistry,Engineering,Environmental_science | 680 |
74,571,655 | https://en.wikipedia.org/wiki/Architectural%20exaptation | Architectural exaptation is a concept in architecture and urban design that involves repurposing buildings, structures, or architectural elements for new uses that differ significantly from their original intended purpose. This practice extends beyond mere adaptation, as it involves a transformative process where the o... | Architectural exaptation | Technology,Engineering | 475 |
49,239,358 | https://en.wikipedia.org/wiki/Kirklington%20Hall%20Research%20Station | Kirklington Hall Research Station was a geophysical research institute of BP in Kirklington, Nottinghamshire. During the 1950s it was the main research site of BP.
Background
Cricketer John Boddam-Whetham was born at the site in 1843. Sir Albert Bennett, 1st Baronet, Liberal MP from 1922-23 for Mansfield, lived there ... | Kirklington Hall Research Station | Chemistry,Engineering | 615 |
10,601,794 | https://en.wikipedia.org/wiki/Carbon%E2%80%93fluorine%20bond | The carbon–fluorine bond is a polar covalent bond between carbon and fluorine that is a component of all organofluorine compounds. It is one of the strongest single bonds in chemistry (after the B–F single bond, Si–F single bond, and H–F single bond), and relatively short, due to its partial ionic character. The bond a... | Carbon–fluorine bond | Physics,Chemistry,Materials_science | 2,163 |
492,612 | https://en.wikipedia.org/wiki/Bimodule | In abstract algebra, a bimodule is an abelian group that is both a left and a right module, such that the left and right multiplications are compatible. Besides appearing naturally in many parts of mathematics, bimodules play a clarifying role, in the sense that many of the relationships between left and right modules ... | Bimodule | Mathematics | 1,273 |
8,537,444 | https://en.wikipedia.org/wiki/Cosmic%20Calendar | The Cosmic Calendar is a method to visualize the chronology of the universe, scaling its currently understood age of 13.8 billion years to a single year in order to help intuit it for pedagogical purposes in science education or popular science. A similar analogy used to visualize the geologic time scale and the histor... | Cosmic Calendar | Physics,Astronomy,Mathematics | 367 |
2,507,104 | https://en.wikipedia.org/wiki/Aposematism | Aposematism is the advertising by an animal, whether terrestrial or marine, to potential predators that it is not worth attacking or eating. This unprofitability may consist of any defenses which make the prey difficult to kill and eat, such as toxicity, venom, foul taste or smell, sharp spines, or aggressive nature. T... | Aposematism | Chemistry,Biology | 3,710 |
68,291,117 | https://en.wikipedia.org/wiki/KELT-6 | KELT-6, also known as BD+31 2447, is a star in the constellation Coma Berenices. With an apparent magnitude of 10.34, it is impossible to see with the unaided eye, but can be seen with a powerful telescope. The star is located 791 light years away from the Solar System based on parallax, but is drifting away with a rad... | KELT-6 | Astronomy | 299 |
39,217,162 | https://en.wikipedia.org/wiki/Russula%20parvovirescens | Russula parvovirescens is a basidiomycete mushroom of the genus Russula. Found in the eastern United States, it was described as new to science in 2006.
Description
The green cap is convex with a nearly flat top and central depression, and wide; it has a quilted appearance due to cracks that increase near the margin... | Russula parvovirescens | Biology | 185 |
51,798,738 | https://en.wikipedia.org/wiki/Phenestrol | Phenestrol, or fenestrol, also known as hexestrol bis[4-[bis(2-chloroethyl)amino]phenylacetate, is a synthetic, nonsteroidal estrogen and cytostatic antineoplastic agent (i.e., chemotherapy drug) and a chlorphenacyl nitrogen mustard ester of hexestrol which was developed in the early 1960s for the treatment of hormone-... | Phenestrol | Chemistry | 169 |
41,673,989 | https://en.wikipedia.org/wiki/S%C5%8Dk%C5%8D%20Sagy%C5%8D%20Ki | The , also known as the , was a fulltrack engineering vehicle of the Imperial Japanese Army (IJA) introduced in 1931. The vehicle was considered by the IJA to be one of its most versatile multi-function support vehicles.
History
During the 1930s, the Imperial Japanese Army required a specialised vehicle in preparation... | Sōkō Sagyō Ki | Engineering | 828 |
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