id int64 580 79M | url stringlengths 31 175 | text stringlengths 9 245k | source stringlengths 1 109 | categories stringclasses 160
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|---|---|---|---|---|---|
18,287,344 | https://en.wikipedia.org/wiki/Degrowth | Degrowth is an academic and social movement critical of the concept of growth in gross domestic product as a measure of human and economic development. The idea of degrowth is based on ideas and research from economic anthropology, ecological economics, environmental sciences, and development studies. It argues that mo... | Degrowth | Environmental_science | 9,615 |
20,207,529 | https://en.wikipedia.org/wiki/Methimepip | Methimepip is a histamine agonist which is highly selective for the H3 subtype. It is the N-methyl derivative of immepip.
References
Imidazoles
Histamine agonists
Piperidines | Methimepip | Chemistry | 51 |
519,218 | https://en.wikipedia.org/wiki/Tridiagonal%20matrix | In linear algebra, a tridiagonal matrix is a band matrix that has nonzero elements only on the main diagonal, the subdiagonal/lower diagonal (the first diagonal below this), and the supradiagonal/upper diagonal (the first diagonal above the main diagonal). For example, the following matrix is tridiagonal:
The determin... | Tridiagonal matrix | Mathematics | 1,218 |
543,407 | https://en.wikipedia.org/wiki/Torque%20converter | A torque converter is a device, usually implemented as a type of fluid coupling, that transfers rotating power from a prime mover, like an internal combustion engine, to a rotating driven load. In a vehicle with an automatic transmission, the torque converter connects the prime mover to the automatic gear train, which... | Torque converter | Physics | 3,947 |
5,445,552 | https://en.wikipedia.org/wiki/Poussin%20proof | In number theory, a branch of mathematics, the Poussin proof is the proof of an identity related to the fractional part of a ratio.
In 1838, Peter Gustav Lejeune Dirichlet proved an approximate formula for the average number of divisors of all the numbers from 1 to n:
where d represents the divisor function, and γ re... | Poussin proof | Mathematics | 310 |
52,373,496 | https://en.wikipedia.org/wiki/Notakto | Notakto is a tic-tac-toe variant, also known as neutral or impartial tic-tac-toe. The game is a combination of the games tic-tac-toe and Nim, played across one or several boards with both of the players playing the same piece (an "X" or cross). The game ends when all the boards contain a three-in-a-row of Xs, at which ... | Notakto | Mathematics | 608 |
67,532,448 | https://en.wikipedia.org/wiki/Emergency%20Warning%20System | Emergency Warning System () is a warning system the Japan Meteorological Agency (JMA) launched on 30 August 2013. Emergency Warnings are issued to alert people to the significant likelihood of catastrophes in association with natural phenomena of extraordinary magnitude. Residents should take all measures possible to p... | Emergency Warning System | Technology,Engineering | 571 |
27,557,852 | https://en.wikipedia.org/wiki/Stable%20nucleic%20acid%20lipid%20particle | Stable nucleic acid lipid particles (SNALPs) are microscopic particles approximately 120 nanometers in diameter, smaller than the wavelengths of visible light. They have been used to deliver siRNAs therapeutically to mammals in vivo. In SNALPs, the siRNA is surrounded by a lipid bilayer containing a mixture of cationic... | Stable nucleic acid lipid particle | Chemistry,Biology | 2,420 |
8,396,078 | https://en.wikipedia.org/wiki/Z-channel%20%28information%20theory%29 | In coding theory and information theory, a Z-channel or binary asymmetric channel is a communications channel used to model the behaviour of some data storage systems.
Definition
A Z-channel is a channel with binary input and binary output, where each 0 bit is transmitted correctly, but each 1 bit has probability p o... | Z-channel (information theory) | Mathematics,Technology,Engineering | 511 |
227,086 | https://en.wikipedia.org/wiki/Waverider | A waverider is a hypersonic aircraft design that improves its supersonic lift-to-drag ratio by using the shock waves being generated by its own flight as a lifting surface, a phenomenon known as compression lift.
The waverider remains a well-studied design for high-speed aircraft in the Mach 5 and higher hypersonic r... | Waverider | Chemistry,Engineering | 3,362 |
61,475,383 | https://en.wikipedia.org/wiki/BEAMA | BEAMA, formerly the British Electrotechnical and Allied Manufacturers' Association, is a trade association for energy infrastructure companies in the United Kingdom.
History
The organisation was established in 1902 as the National Electrical Manufacturers' Association before changing its name to the British Electrotec... | BEAMA | Engineering | 195 |
1,641,187 | https://en.wikipedia.org/wiki/Joseph%20Achille%20Le%20Bel | Joseph Achille Le Bel (21 January 1847 in Pechelbronn – 6 August 1930, in Paris, France) was a French chemist. He is best known for his work in stereochemistry. Le Bel was educated at the École Polytechnique in Paris. In 1874 he announced his theory outlining the relationship between molecular structure and optical act... | Joseph Achille Le Bel | Chemistry | 205 |
25,159,988 | https://en.wikipedia.org/wiki/L-Deoxyribose | {{DISPLAYTITLE:L-Deoxyribose}}
-Deoxyribose is an organic compound with formula C5H10O4. It is a synthetic monosaccharide, a stereoisomer (mirror image) of the natural compound -deoxyribose.
-Deoxyribose can be synthesized from -galactose. It has been used in chemical research, e.g. in the synthesis of mirror-image ... | L-Deoxyribose | Chemistry | 111 |
428,053 | https://en.wikipedia.org/wiki/Herbert%20Boyer | Herbert Wayne "Herb" Boyer (born July 10, 1936) is an American biotechnologist, researcher and entrepreneur in biotechnology. Along with Stanley N. Cohen and Paul Berg, he discovered recombinant DNA, a method to coax bacteria into producing foreign proteins, which aided in jump-starting the field of genetic engineering... | Herbert Boyer | Biology | 763 |
60,458,468 | https://en.wikipedia.org/wiki/Instapoetry | Instapoetry is a style of written poetry that emerged after the advent of social media, especially on Instagram. The term has been used to describe poems written specifically for being shared online, most commonly on Instagram, but also other platforms including Twitter, Tumblr, and TikTok.
The style usually consists ... | Instapoetry | Technology | 1,038 |
11,901,730 | https://en.wikipedia.org/wiki/Gi%20alpha%20subunit | {{DISPLAYTITLE:Gi alpha subunit}}
Gi protein alpha subunit is a family of heterotrimeric G protein alpha subunits. This family is also commonly called the Gi/o (Gi /Go ) family or Gi/o/z/t family to include closely related family members. G alpha subunits may be referred to as Gi alpha, Gαi, or Giα.
Family members
T... | Gi alpha subunit | Chemistry | 1,219 |
9,632 | https://en.wikipedia.org/wiki/Ecosystem | An ecosystem (or ecological system) is a system formed by organisms in interaction with their environment. The biotic and abiotic components are linked together through nutrient cycles and energy flows.
Ecosystems are controlled by external and internal factors. External factors such as climate, parent material which ... | Ecosystem | Biology | 5,994 |
71,469,504 | https://en.wikipedia.org/wiki/Okroy%20Cloud | The Okroy Cloud, is an intergalactic dust cloud near the Milky Way. Its intergalactic nature was first studied by Bogdan Wszolek and Solvia Massi in 1988.
See also
Local Group
Satellite galaxies of the Milky Way
References
Milky Way
Milky Way Subgroup
Virgo (constellation)
Stellar streams
?
Local Group | Okroy Cloud | Astronomy | 68 |
75,599,532 | https://en.wikipedia.org/wiki/Quantum%20computational%20chemistry | Quantum computational chemistry is an emerging field that exploits quantum computing to simulate chemical systems. Despite quantum mechanics' foundational role in understanding chemical behaviors, traditional computational approaches face significant challenges, largely due to the complexity and computational intensity... | Quantum computational chemistry | Physics,Chemistry | 2,316 |
60,645,788 | https://en.wikipedia.org/wiki/ALG1-CDG | ALG1-CDG is an autosomal recessive congenital disorder of glycosylation caused by biallelic pathogenic variants in ALG1. The first cases of ALG1-CDG were described in 2004, and the causative gene was identified at the same time. This disorder was originally designated CDG-IK, under earlier nomenclature for congenital... | ALG1-CDG | Chemistry | 228 |
19,437,647 | https://en.wikipedia.org/wiki/Notes%20and%20Records | Notes and Records: the Royal Society Journal of the History of Science is an international, quarterly peer-reviewed academic journal which publishes original research in the history of science, technology, and medicine. The journal welcomes other forms of contribution including: research notes elucidating recent archiv... | Notes and Records | Technology | 365 |
1,278,990 | https://en.wikipedia.org/wiki/List%20of%20the%2072%20names%20on%20the%20Eiffel%20Tower | On the Eiffel Tower, 72 names of French men (scientists, engineers, and mathematicians) are engraved in recognition of their contributions. Gustave Eiffel chose this "invocation of science" because of his concern over the protests against the tower, and chose names of those who had distinguished themselves since 1789. ... | List of the 72 names on the Eiffel Tower | Technology | 518 |
16,258,342 | https://en.wikipedia.org/wiki/Formalism%20%28philosophy%20of%20mathematics%29 | In the philosophy of mathematics, formalism is the view that holds that statements of mathematics and logic can be considered to be statements about the consequences of the manipulation of strings (alphanumeric sequences of symbols, usually as equations) using established manipulation rules. A central idea of formalism... | Formalism (philosophy of mathematics) | Mathematics | 1,370 |
8,350,356 | https://en.wikipedia.org/wiki/Formstone | Formstone is a type of stucco commonly applied to brick rowhouses in many East Coast urban areas in the United States, although it is most strongly associated with Baltimore. As a form of simulated masonry, Formstone is commonly colored and shaped on the building to imitate various forms of masonry compound, creating t... | Formstone | Physics,Engineering | 1,552 |
52,102,799 | https://en.wikipedia.org/wiki/G.%20A.%20Mansoori | Gholam Ali Mansoori (born in 1943), G. Ali Mansoori also known as "GA Mansoori" is an Iranian-American scientist known for his research within energy, nanotechnology and thermodynamics. He is a professor at the Departments of Bioengineering, Chemical Engineering and also Physics at University of Illinois at Chicago.
L... | G. A. Mansoori | Physics,Chemistry | 729 |
26,016,875 | https://en.wikipedia.org/wiki/Bermuda%20National%20Grid | The Bermuda National Grid 2000 (BNG) is a kind of Transverse Mercator projection. It is not a Universal Transverse Mercator (UTM) projection, as it has an origin and other parameters that are different from those used in UTM.
Grid Parameters:
References
Online resources:
Convert from BNG to lat/lon in Google earth
... | Bermuda National Grid | Mathematics | 90 |
2,583,446 | https://en.wikipedia.org/wiki/Giovanni%20Battista%20Brocchi | Giovanni Battista (or Giambattista) Brocchi (18 February 177225 September 1826) was an Italian naturalist, mineralogist and geologist.
Biography
Giovanni Battista Brocchi was born in Bassano del Grappa and studied jurisprudence at the University of Padua, but his attention was turned to mineralogy and botany. The Bass... | Giovanni Battista Brocchi | Biology | 769 |
42,055,328 | https://en.wikipedia.org/wiki/Electric%20Avenue%20%28TV%20series%29 | Part of the BBC Computer Literacy Project, Electric Avenue was a late-night TV Series starting with an initial 10-episode series in 1988. The show followed Micro Live and was presented by Fred Harris.
Programmes
The first series was split into 10 programmes, each about 24 minutes long and dealing with a particular sub... | Electric Avenue (TV series) | Technology | 274 |
338,849 | https://en.wikipedia.org/wiki/The%20Last%20Starfighter | The Last Starfighter is a 1984 American space opera film directed by Nick Castle. The film tells the story of Alex Rogan (Lance Guest), a teenager who, after winning the high score in an arcade game that's secretly a simulation test, is recruited by an alien defense force to fight in an interstellar war. It also featur... | The Last Starfighter | Technology | 3,379 |
28,384,824 | https://en.wikipedia.org/wiki/Biochimie | Biochimie is a monthly peer-reviewed scientific journal covering the fields of biochemistry, biophysics, and molecular biology. It is published by Elsevier on behalf of the . The journal, started as a French language publication, is also open to English language articles since the late 2000s.
, the editor-in-chief is ... | Biochimie | Chemistry | 172 |
33,287,071 | https://en.wikipedia.org/wiki/Glycoside%20hydrolase%20family%2019 | In molecular biology, Glycoside hydrolase family 19 is a family of glycoside hydrolases , which are a widespread group of enzymes that hydrolyse the glycosidic bond between two or more carbohydrates, or between a carbohydrate and a non-carbohydrate moiety. A classification system for glycoside hydrolases, based on sequ... | Glycoside hydrolase family 19 | Biology | 406 |
53,498,449 | https://en.wikipedia.org/wiki/Hajra%20Waheed | Hajra Waheed is a Montréal-based artist. Her multimedia practice includes works on paper, collage, sound, video, sculpture and installation. Waheed uses news accounts, extensive research and personal histories to critically examine multiple issues including: covert power, mass surveillance, cultural distortion and the... | Hajra Waheed | Technology | 598 |
55,529,178 | https://en.wikipedia.org/wiki/International%20Ideographs%20Core | International Ideographs Core (IICore) is a subset of up to ten thousand CJK Unified Ideographs characters, which can be implemented on devices with limited memories and capability that make it not feasible to implement the full ISO 10646/Unicode standard.
History
The IICore subset was initially raised in the 21st me... | International Ideographs Core | Technology | 152 |
34,545,370 | https://en.wikipedia.org/wiki/Airflow | Airflow, or air flow, is the movement of air. Air behaves in a fluid manner, meaning particles naturally flow from areas of higher pressure to those where the pressure is lower. Atmospheric air pressure is directly related to altitude, temperature, and composition.
In engineering, airflow is a measurement of the amoun... | Airflow | Physics,Engineering | 2,411 |
8,614,958 | https://en.wikipedia.org/wiki/Social%20connection | Social connection is the experience of feeling close and connected to others. It involves feeling loved, cared for, and valued, and forms the basis of interpersonal relationships."Connection is the energy that exists between people when they feel seen, heard and valued; when they can give and receive without judgement;... | Social connection | Biology | 3,613 |
22,625,701 | https://en.wikipedia.org/wiki/European%20Calcium%20Society | The European Calcium Society is a non-profit society that aims to develop relationships between different generations of scientists in Europe working in the field of calcium signaling and the proteins involved in the Calcium Toolkit.
Origin
The First European Symposium took place in 1989 and covered calcium binding ... | European Calcium Society | Biology | 490 |
11,728,902 | https://en.wikipedia.org/wiki/Fixation%20%28psychology%29 | Fixation () is a concept (in human psychology) that was originated by Sigmund Freud (1905) to denote the persistence of anachronistic sexual traits. The term subsequently came to denote object relationships with attachments to people or things in general persisting from childhood into adult life.
Freud
In Three Essay... | Fixation (psychology) | Biology | 732 |
4,767,366 | https://en.wikipedia.org/wiki/Standard%20addition | The Standard addition method, often used in analytical chemistry, quantifies the analyte present in an unknown. This method is useful for analyzing complex samples where a matrix effect interferes with the analyte signal. In comparison to the calibration curve method, the standard addition method has the advantage of t... | Standard addition | Chemistry | 1,202 |
47,682,934 | https://en.wikipedia.org/wiki/Charles%20Clement%20Coe | Charles Clement Coe (8 February 1830 – 1 April 1921) was an English Unitarian minister and writer who advocated non-Darwinian evolution.
Coe was born in King's Lynn and was educated at Manchester College, Oxford. He was President of the Leicester Literary and Philosophical Society (1862-1863) and was Minister of the U... | Charles Clement Coe | Biology | 294 |
27,713,781 | https://en.wikipedia.org/wiki/Suicide%20epidemic | A suicide epidemic is a large number of suicides taking place over a period of time in a manner that resembles a disease epidemic. Such epidemics have occurred in the former Soviet Union in the 1990s, among police officers, on Indian reservations, and in Micronesia. The Werther effect occurs when suicides that are made... | Suicide epidemic | Biology | 121 |
22,207,814 | https://en.wikipedia.org/wiki/Pathema | Pathema was one of the eight bioinformatics resource centers funded by the National Institute of Allergy and Infectious Diseases (NIAID), a component of the National Institute of Health (NIH), which is an agency of the United States Department of Health and Human Services.
Pathema was funded for five years from 2004 t... | Pathema | Biology | 858 |
10,849,414 | https://en.wikipedia.org/wiki/Lever%20rule | In chemistry, the lever rule is a formula used to determine the mole fraction (xi) or the mass fraction (wi) of each phase of a binary equilibrium phase diagram. It can be used to determine the fraction of liquid and solid phases for a given binary composition and temperature that is between the liquidus and solidus li... | Lever rule | Physics,Chemistry,Materials_science,Engineering | 670 |
18,974,136 | https://en.wikipedia.org/wiki/Mathematical%20beauty | Mathematical beauty is the aesthetic pleasure derived from the abstractness, purity, simplicity, depth or orderliness of mathematics. Mathematicians may express this pleasure by describing mathematics (or, at least, some aspect of mathematics) as beautiful or describe mathematics as an art form, (a position taken by G.... | Mathematical beauty | Mathematics | 3,425 |
288,307 | https://en.wikipedia.org/wiki/Replica%20plating | Replica plating is a microbiological technique in which one or more secondary Petri plates containing different solid (agar-based) selective growth media (lacking nutrients or containing chemical growth inhibitors such as antibiotics) are inoculated with the same colonies of microorganisms from a primary plate (or mast... | Replica plating | Chemistry,Biology | 756 |
58,673 | https://en.wikipedia.org/wiki/Liquid%20hydrogen | Liquid hydrogen () is the liquid state of the element hydrogen. Hydrogen is found naturally in the molecular H2 form.
To exist as a liquid, H2 must be cooled below its critical point of 33 K. However, for it to be in a fully liquid state at atmospheric pressure, H2 needs to be cooled to . A common method of obtaining ... | Liquid hydrogen | Physics,Chemistry | 1,407 |
58,297,912 | https://en.wikipedia.org/wiki/Peter%20Pauson | Prof Peter Ludwig Israel Pauson FRSE FRIC (1925–2013) was a German–Jewish emigrant who settled in Britain and who is remembered for his contributions to chemistry, most notably the Pauson–Khand reaction and as joint discoverer of ferrocene.
Life
He was born in Bamberg, Germany on 30 July 1925, the son of Stefan Pauso... | Peter Pauson | Chemistry | 603 |
12,703,254 | https://en.wikipedia.org/wiki/Custody%20transfer | Custody Transfer in the oil and gas industry refers to the transactions involving transporting physical substance from one operator to another. This includes the transferring of raw and refined petroleum between tanks and railway tank cars; onto ships, and other transactions. Custody transfer in fluid measurement is de... | Custody transfer | Engineering | 4,177 |
202,522 | https://en.wikipedia.org/wiki/Ionizing%20radiation | Ionizing radiation (US, ionising radiation in the UK), including nuclear radiation, consists of subatomic particles or electromagnetic waves that have sufficient energy to ionize atoms or molecules by detaching electrons from them. Some particles can travel up to 99% of the speed of light, and the electromagnetic waves... | Ionizing radiation | Physics,Chemistry,Materials_science,Biology,Environmental_science | 6,995 |
25,198 | https://en.wikipedia.org/wiki/Quaternary | The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS), as well as the current and most recent of the twelve periods of the Phanerozoic eon. It follows the Neogene Period and spans from 2.58 million year... | Quaternary | Physics | 1,542 |
18,926,097 | https://en.wikipedia.org/wiki/Clofilium | Clofilium is an antiarrhythmic agent.
Quaternary ammonium compounds
Antiarrhythmic agents
4-Chlorophenyl compounds | Clofilium | Chemistry | 37 |
11,322,659 | https://en.wikipedia.org/wiki/Coleosporium%20ipomoeae | Coleosporium ipomoeae is a plant pathogen. Specifically, it is a fungus that can develop on sweet potatoes.
Fungal plant pathogens and diseases
Eudicot diseases
Pucciniales
Fungi described in 1885
Fungus species | Coleosporium ipomoeae | Biology | 48 |
64,416,075 | https://en.wikipedia.org/wiki/Geocarto%20International | Geocarto International is an academic journal published by Taylor & Francis.
It focuses on remote sensing, GIS, geoscience and environmental sciences. Its editor-in-chief is Kamlesh Lulla. The 2019-2020 Journal Impact IF of Geocarto International is 4.889, which is updated in 2020.
References
Taylor & Francis academi... | Geocarto International | Technology | 86 |
11,436,452 | https://en.wikipedia.org/wiki/Cercospora%20carotae | Cercospora carotae is a fungal plant pathogen.
References
carotae
Fungal plant pathogens and diseases
Fungus species | Cercospora carotae | Biology | 27 |
24,150,455 | https://en.wikipedia.org/wiki/C18H23NO4 | {{DISPLAYTITLE:C18H23NO4}}
The molecular formula C18H23NO4 (molar mass: 317.37 g/mol, exact mass: 317.1627 u) may refer to:
Arbutamine
Cocaethylene
Denopamine
14-Hydroxydihydrocodeine | C18H23NO4 | Chemistry | 71 |
1,824,845 | https://en.wikipedia.org/wiki/Cartesian%20tensor | In geometry and linear algebra, a Cartesian tensor uses an orthonormal basis to represent a tensor in a Euclidean space in the form of components. Converting a tensor's components from one such basis to another is done through an orthogonal transformation.
The most familiar coordinate systems are the two-dimensional a... | Cartesian tensor | Mathematics,Engineering | 5,191 |
4,986,733 | https://en.wikipedia.org/wiki/Hammett%20equation | In organic chemistry, the Hammett equation describes a linear free-energy relationship relating reaction rates and equilibrium constants for many reactions involving benzoic acid derivatives with meta- and para-substituents to each other with just two parameters: a substituent constant and a reaction constant. This equ... | Hammett equation | Chemistry,Mathematics | 4,478 |
50,649,514 | https://en.wikipedia.org/wiki/Zinc%20finger%20protein%20510 | Zinc finger protein 510 is a protein that in humans is encoded by the ZNF510 gene.
Function
This gene encodes a krueppel C2H2-type zinc-finger protein family member. The encoded protein is expressed in several cancer cell types and may be a biomarker for early diagnosis of these cancers.
References
Further reading | Zinc finger protein 510 | Chemistry | 72 |
60,055,007 | https://en.wikipedia.org/wiki/Lyapunov%20dimension | In the mathematics of dynamical systems, the concept of Lyapunov dimension was suggested by Kaplan and Yorke for estimating the Hausdorff dimension of attractors.
Further the concept has been developed and rigorously justified in a number of papers, and nowadays various different approaches to the definition of Lyapun... | Lyapunov dimension | Physics,Mathematics | 758 |
67,522,937 | https://en.wikipedia.org/wiki/Gjitonia | The gjitonia is a form of consolidated social cooperation and today little present in the whole historical Arbëreshë region.
It differs from the typical Italian "rione" for its urban architecture and social contribution.
Etymology
The word gjitonìa is a complex word that contains social values of parental extraction... | Gjitonia | Engineering | 1,350 |
17,367,123 | https://en.wikipedia.org/wiki/Scaly-foot%20gastropod | Chrysomallon squamiferum, commonly known as the scaly-foot gastropod, scaly-foot snail, sea pangolin, or volcano snail is a species of deep-sea hydrothermal-vent snail, a marine gastropod mollusc in the family Peltospiridae. This vent-endemic gastropod is known only from deep-sea hydrothermal vents in the Indian Ocean,... | Scaly-foot gastropod | Biology | 6,414 |
5,584,334 | https://en.wikipedia.org/wiki/Vacuum%20flange | A vacuum flange is a flange at the end of a tube used to connect vacuum chambers, tubing and vacuum pumps to each other. Vacuum flanges are used for scientific and industrial applications to allow various pieces of equipment to interact via physical connections and for vacuum maintenance, monitoring, and manipulation f... | Vacuum flange | Physics,Engineering | 1,338 |
2,526,861 | https://en.wikipedia.org/wiki/Isotopes%20of%20thorium | Thorium (90Th) has seven naturally occurring isotopes but none are stable. One isotope, 232Th, is relatively stable, with a half-life of 1.405×1010 years, considerably longer than the age of the Earth, and even slightly longer than the generally accepted age of the universe. This isotope makes up nearly all natural tho... | Isotopes of thorium | Chemistry | 5,898 |
166,365 | https://en.wikipedia.org/wiki/Vorticity%20equation | The vorticity equation of fluid dynamics describes the evolution of the vorticity of a particle of a fluid as it moves with its flow; that is, the local rotation of the fluid (in terms of vector calculus this is the curl of the flow velocity). The governing equation is:where is the material derivative operator, is t... | Vorticity equation | Physics,Chemistry,Engineering | 1,115 |
21,787,394 | https://en.wikipedia.org/wiki/Pathogenomics | Pathogenomics is a field which uses high-throughput screening technology and bioinformatics to study encoded microbe resistance, as well as virulence factors (VFs), which enable a microorganism to infect a host and possibly cause disease. This includes studying genomes of pathogens which cannot be cultured outside of a... | Pathogenomics | Chemistry,Biology | 3,900 |
6,230,931 | https://en.wikipedia.org/wiki/Expander%20mixing%20lemma | The expander mixing lemma intuitively states that the edges of certain -regular graphs are evenly distributed throughout the graph. In particular, the number of edges between two vertex subsets and is always close to the expected number of edges between them in a random -regular graph, namely .
d-Regular Expander Gr... | Expander mixing lemma | Mathematics | 1,025 |
43,887,987 | https://en.wikipedia.org/wiki/Mobility%20analogy | The mobility analogy, also called admittance analogy or Firestone analogy, is a method of representing a mechanical system by an analogous electrical system. The advantage of doing this is that there is a large body of theory and analysis techniques concerning complex electrical systems, especially in the field of fil... | Mobility analogy | Engineering | 3,180 |
2,897,745 | https://en.wikipedia.org/wiki/Embedded%20value | The Embedded Value (EV) of a life insurance company is the present value of future profits plus adjusted net asset value. It is a construct from the field of actuarial science which allows insurance companies to be valued.
Background
Life insurance policies are long-term contracts, where the policyholder pays a premiu... | Embedded value | Mathematics | 441 |
49,530,308 | https://en.wikipedia.org/wiki/Neutron%20magnetic%20imaging | Neutrons are spin 1/2 particles that interact with magnetic induction fields via the Zeeman interaction. This interaction is both rather large and simple to describe. Several neutron scattering techniques have been developed to use thermal neutrons to characterize magnetic micro and nanostructures.
Polarized small-ang... | Neutron magnetic imaging | Chemistry | 1,116 |
54,247,835 | https://en.wikipedia.org/wiki/Biosolarization | Biosolarization is an alternative technology to soil fumigation used in agriculture. It is closely related to biofumigation and soil solarization, or the use of solar power to control nematodes, bacteria, fungi and other pests that damage crops. In solarization, the soil is mulched and covered with a tarp to trap solar... | Biosolarization | Chemistry,Biology,Environmental_science | 312 |
1,630,953 | https://en.wikipedia.org/wiki/Buying%20center | A buying center, also called a decision-making unit (DMU), brings together "all those members of an organization who become involved in the buying process for a particular product or service".
The concept of a DMU was developed in 1967 by Robinson, Farris and Wind (1967). A DMU consists of all the people of an organiz... | Buying center | Biology | 1,291 |
28,452,110 | https://en.wikipedia.org/wiki/Lucas%20Introna | Lucas D. Introna (born 1961) is Professor of Organisation, Technology and Ethics at the Lancaster University Management School. He is a scholar within the Social Study of Information Systems field. His research is focused on the phenomenon of technology. Within the area of technology studies he has made significant c... | Lucas Introna | Technology | 1,696 |
73,052,423 | https://en.wikipedia.org/wiki/Double%20operator%20integral | In functional analysis, double operator integrals (DOI) are integrals of the form
where is a bounded linear operator between two separable Hilbert spaces,
are two spectral measures, where stands for the set of orthogonal projections over , and is a scalar-valued measurable function called the symbol of the DOI. Th... | Double operator integral | Mathematics | 315 |
48,951,615 | https://en.wikipedia.org/wiki/Syrian%20hamster%20behavior | Syrian hamster behavior refers to the ethology of the Syrian hamster (Mesocricetus auratus).
Sleeping habits
Syrian hamsters have a sleep cycle that lasts about 10 to 12 minutes.
In the laboratory, Syrian hamsters are observed to be nocturnal and in their natural circadian rhythm they wake and sleep on a consistent s... | Syrian hamster behavior | Biology | 1,496 |
53,990,911 | https://en.wikipedia.org/wiki/Gray%20molasses | Gray molasses is a method of sub-Doppler laser cooling of atoms. It employs principles from Sisyphus cooling in conjunction with a so-called "dark" state whose transition to the excited state is not addressed by the resonant lasers. Ultracold atomic physics experiments on atomic species with poorly-resolved hyperfine s... | Gray molasses | Physics,Chemistry,Mathematics | 1,502 |
272,522 | https://en.wikipedia.org/wiki/FM%20broadcast%20band | The FM broadcast band is a range of radio frequencies used for FM broadcasting by radio stations. The range of frequencies used differs between different parts of the world. In Europe and Africa (defined as International Telecommunication Union (ITU) region 1) and in Australia and New Zealand, it spans from 87.5 to 108... | FM broadcast band | Engineering | 3,873 |
37,780,355 | https://en.wikipedia.org/wiki/Hyundai%20Play%20X | The Hyundai Play X is an Android tablet.
The device has a 2048×1536 resolution IPS screen with 3.14 million total pixels, pixel density (definition) reaches 264 ppi. The Hyundai Play X (X900) houses a dual core Rockchip RK3066 processor which is based on the 40 nm LP process of low-power and its frequency reaches 1.6 ... | Hyundai Play X | Technology | 315 |
2,521,046 | https://en.wikipedia.org/wiki/Free%20induction%20decay | In Fourier transform nuclear magnetic resonance spectroscopy, free induction decay (FID) is the observable nuclear magnetic resonance (NMR) signal generated by non-equilibrium nuclear spin magnetization precessing about the magnetic field (conventionally along z). This non-equilibrium magnetization can be created gener... | Free induction decay | Physics,Chemistry | 398 |
19,788,666 | https://en.wikipedia.org/wiki/Adaptive%20switching | An adaptive switch is a network switch designed to normally operate in cut-through mode but if a port's error rate jumps too high, the switch automatically reconfigures the port to run in store-and-forward mode. This optimizes the switch's performance by providing higher speed cut-through switching if error rates are l... | Adaptive switching | Technology,Engineering | 105 |
706,295 | https://en.wikipedia.org/wiki/Canonical%20commutation%20relation | In quantum mechanics, the canonical commutation relation is the fundamental relation between canonical conjugate quantities (quantities which are related by definition such that one is the Fourier transform of another). For example,
between the position operator and momentum operator in the direction of a point par... | Canonical commutation relation | Physics,Mathematics | 1,999 |
29,283,004 | https://en.wikipedia.org/wiki/Operation%20Damocles | Operation Damocles was a covert campaign of the Israeli intelligence agency, Mossad in August 1962 which targeted German scientists and technicians, formerly employed in Nazi Germany's rocket program, who were developing rockets for Egypt at a military site known as Factory 333. According to Otto Joklik, an Austrian s... | Operation Damocles | Engineering | 1,347 |
61,929,977 | https://en.wikipedia.org/wiki/B%C3%BClent%20%C5%9E%C4%B1k | Bülent Şık is a Turkish food engineer, environmental and human rights activist and a whistleblower. He was convicted after disclosing the results from a government study on environmental pollution and carcinogens.
Early life and education
Career
Şık has worked at Akdeniz University in Antalya, where he was a deputy d... | Bülent Şık | Engineering | 449 |
25,280,408 | https://en.wikipedia.org/wiki/Online%20locator%20service | An online locator service (also known as location finder, store finder, or store locator, or similar) is a feature found on websites of businesses with multiple locations that allows visitors to the site to find locations of the business within proximity of an address or postal code or within a selected region. Types o... | Online locator service | Mathematics | 393 |
43,302,095 | https://en.wikipedia.org/wiki/Lie%20group%E2%80%93Lie%20algebra%20correspondence | In mathematics, Lie group–Lie algebra correspondence allows one to correspond a Lie group to a Lie algebra or vice versa, and study the conditions for such a relationship. Lie groups that are isomorphic to each other have Lie algebras that are isomorphic to each other, but the converse is not necessarily true. One obvi... | Lie group–Lie algebra correspondence | Mathematics | 3,258 |
366,726 | https://en.wikipedia.org/wiki/The%20Three%20Doctors%20%28Doctor%20Who%29 | The Three Doctors is the first serial of the tenth season of the British science fiction television series Doctor Who, first broadcast in four weekly parts on BBC1 from 30 December 1972 to 20 January 1973.
In the serial, the solar engineer Omega (Stephen Thorne), the creator of the experiments that allowed the Time Lo... | The Three Doctors (Doctor Who) | Physics | 2,378 |
22,788,074 | https://en.wikipedia.org/wiki/Sophie%20Germain%27s%20theorem | In number theory, Sophie Germain's theorem is a statement about the divisibility of solutions to the equation of Fermat's Last Theorem for odd prime .
Formal statement
Specifically, Sophie Germain proved that at least one of the numbers , , must be divisible by if an auxiliary prime can be found such that two cond... | Sophie Germain's theorem | Mathematics | 346 |
40,679,472 | https://en.wikipedia.org/wiki/Event%20tree%20analysis | Event tree analysis (ETA) is a forward, top-down, logical modeling technique for both success and failure that explores responses through a single initiating event and lays a path for assessing probabilities of the outcomes and overall system analysis. This analysis technique is used to analyze the effects of function... | Event tree analysis | Engineering | 2,065 |
344,173 | https://en.wikipedia.org/wiki/Rotational%20energy | Rotational energy or angular kinetic energy is kinetic energy due to the rotation of an object and is part of its total kinetic energy. Looking at rotational energy separately around an object's axis of rotation, the following dependence on the object's moment of inertia is observed:
where
The mechanical work require... | Rotational energy | Physics | 409 |
24,107,652 | https://en.wikipedia.org/wiki/C15H11O4 | {{DISPLAYTITLE:C15H11O4}}
The chemical compound C15H11O4 (or C15H11O4+, molar mass : 255.24 g/mol, exact mass: 255.065734) may refer to:
Apigeninidin, an anthocyanidin
Guibourtinidin, an anthocyanidin | C15H11O4 | Chemistry | 83 |
7,720 | https://en.wikipedia.org/wiki/Coprophagia | Coprophagia ( ) or coprophagy ( ) is the consumption of feces. The word is derived from the Ancient Greek "feces" and "to eat". Coprophagy refers to many kinds of feces-eating, including eating feces of other species (heterospecifics), of other individuals (allocoprophagy), or one's own (autocoprophagy). Feces may ... | Coprophagia | Biology | 1,661 |
37,687,136 | https://en.wikipedia.org/wiki/C19H23ClN2 | {{DISPLAYTITLE:C19H23ClN2}}
The molecular formula C19H23ClN2 (molar mass: 314.85 g/mol, exact mass: 314.1550 u) may refer to:
Clomipramine
Homochlorcyclizine
Molecular formulas | C19H23ClN2 | Physics,Chemistry | 65 |
37,397 | https://en.wikipedia.org/wiki/Epcot | EPCOT is a theme park at the Walt Disney World Resort in Bay Lake, Florida. It is owned and operated by The Walt Disney Company through its Disney Experiences division. The park opened on October 1, 1982, as EPCOT Center—the second of four theme parks built at the resort. Often referred to as a "permanent world's fair"... | Epcot | Engineering | 5,554 |
20,776,409 | https://en.wikipedia.org/wiki/George%20Streisinger | George Streisinger (December 27, 1927 – August 11, 1984) was an American molecular biologist and co-founder of the Institute of Molecular Biology at the University of Oregon. He was the first person to clone a vertebrate, cloning zebrafish in his University of Oregon laboratory. He also pioneered work in the genetics o... | George Streisinger | Engineering,Biology | 670 |
24,012,524 | https://en.wikipedia.org/wiki/Kopp%E2%80%93Etchells%20effect | The Kopp–Etchells effect is a sparkling ring or disk that is sometimes produced by rotary-wing aircraft when operating in sandy conditions, particularly near the ground at night. The name was coined by photographer Michael Yon to honor two soldiers who were killed in combat; Benjamin Kopp, a US Army Ranger, and Joseph ... | Kopp–Etchells effect | Physics,Materials_science,Engineering | 769 |
34,590,189 | https://en.wikipedia.org/wiki/LIM%20domain-binding%20protein%20family | In molecular biology, the LIM domain-binding protein family is a family of proteins which binds to the LIM domain of LIM (LIN-11, Isl-1 and MEC-3) homeodomain proteins which are transcriptional regulators of development.
Examples
Nuclear LIM interactor (NLI) / LIM domain-binding protein 1 (LDB1) is located in the nucl... | LIM domain-binding protein family | Biology | 236 |
15,398,793 | https://en.wikipedia.org/wiki/Dynabeads | Dynabeads are superparamagnetic spherical polymer particles with a uniform size and a consistent, defined surface for the adsorption or coupling of various bioreactive molecules or cells.
Development and description
Dynabeads were developed after John Ugelstad managed to create uniform polystyrene spherical beads (def... | Dynabeads | Physics,Chemistry,Materials_science | 470 |
23,098,195 | https://en.wikipedia.org/wiki/Mission%20assurance | Mission Assurance is a full life-cycle engineering process to identify and mitigate design, production, test, and field support deficiencies threatening mission success.
Aspects of Mission Assurance
Mission Assurance includes the disciplined application of system engineering, risk management, quality, and management... | Mission assurance | Engineering | 674 |
7,879,916 | https://en.wikipedia.org/wiki/Vacuum%20cementing | Vacuum cementing or vacuum welding is the natural process of solidifying small objects in a hard vacuum. The most notable example is dust on the surface of the Moon.
This effect was reported to be a problem with the first American and Soviet satellites, as small moving parts would seize together.
In 2009 the Europea... | Vacuum cementing | Physics | 241 |
8,613,140 | https://en.wikipedia.org/wiki/Debaryomyces | Debaryomyces is a genus of yeasts in the family Saccharomycetaceae.
Species
D. artagaveytiae
D. carsonii
D. castellii
D. coudertii
D. etchellsii
D. globularis
D. hansenii
D. kloeckeri
D. kursanovii
D. marama
D. macquariensis
D. melissophilus
D. mrakii
D. mycophilus
D. nepalensis
D. occidentalis
D. oviformis
D. polymo... | Debaryomyces | Biology | 191 |
32,719,831 | https://en.wikipedia.org/wiki/Cheugugi | Cheugugi (Hangul: 측우기, Hanja: 測雨器) is the first well-known rain gauge invented and used during the Joseon dynasty of Korea. It was invented and supplied to each provincial offices during the King Sejong the Great's reign. As of 2010, only one example of the Cheugugi remains, known as the Geumyeong Cheugugi (Hangul: 금영측... | Cheugugi | Technology,Engineering | 1,082 |
36,401,616 | https://en.wikipedia.org/wiki/OPS%205118 | OPS 5118, also known as Navstar 6, GPS I-6 and GPS SVN-6, was an American navigation satellite launched in 1980 as part of the Global Positioning System development programme. It was the sixth of eleven Block I GPS satellites to be launched.
Background
Global Positioning System (GPS) was developed by the U.S. Departm... | OPS 5118 | Technology | 476 |
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