id int64 39 79M | url stringlengths 31 227 | text stringlengths 6 334k | source stringlengths 1 150 ⌀ | categories listlengths 1 6 | token_count int64 3 71.8k | subcategories listlengths 0 30 |
|---|---|---|---|---|---|---|
7,148,738 | https://en.wikipedia.org/wiki/Molecular%20Hamiltonian | In atomic, molecular, and optical physics and quantum chemistry, the molecular Hamiltonian is the Hamiltonian operator representing the energy of the electrons and nuclei in a molecule. This operator and the associated Schrödinger equation play a central role in computational chemistry and physics for computing prope... | Molecular Hamiltonian | [
"Physics",
"Chemistry"
] | 4,292 | [
"Quantum chemistry",
"Molecular physics",
"Spectrum (physical sciences)",
"Instrumental analysis",
"Quantum mechanics",
"Theoretical chemistry",
" molecular",
"nan",
"Atomic",
"Spectroscopy",
" and optical physics"
] |
7,148,964 | https://en.wikipedia.org/wiki/Palomar%205 | Palomar 5 is a globular cluster and a member of the Palomar Globular Clusters group. It was discovered by Walter Baade in 1950, and independently found again by Albert George Wilson in 1955. After the initial name of Serpens, it was subsequently catalogued as Palomar 5.
There is a process of disruption acting on this... | Palomar 5 | [
"Astronomy"
] | 191 | [
"Constellations",
"Serpens"
] |
7,149,012 | https://en.wikipedia.org/wiki/Factorization%20system | In mathematics, it can be shown that every function can be written as the composite of a surjective function followed by an injective function. Factorization systems are a generalization of this situation in category theory.
Definition
A factorization system (E, M) for a category C consists of two classes of morphism... | Factorization system | [
"Mathematics"
] | 708 | [
"Functions and mappings",
"Mathematical structures",
"Mathematical objects",
"Fields of abstract algebra",
"Mathematical relations",
"Category theory"
] |
7,149,215 | https://en.wikipedia.org/wiki/Sun%20photometer | A Sun photometer is a type of photometer conceived in such a way that it points at the Sun. Recent sun photometers are automated instruments incorporating a Sun-tracking unit, an appropriate optical system, a spectrally filtering device, a photodetector, and a data acquisition system. The measured quantity is called d... | Sun photometer | [
"Physics",
"Materials_science",
"Technology",
"Engineering"
] | 325 | [
"Glass engineering and science",
"Optical devices",
"Spectrum (physical sciences)",
"Electromagnetic radiation meters",
"Electromagnetic spectrum",
"Measuring instruments"
] |
7,149,361 | https://en.wikipedia.org/wiki/Regular%20dodecahedron | A regular dodecahedron or pentagonal dodecahedron is a dodecahedron composed of regular pentagonal faces, three meeting at each vertex. It is an example of Platonic solids, described as cosmic stellation by Plato in his dialogues, and it was used as part of Solar System proposed by Johannes Kepler. However, the regular... | Regular dodecahedron | [
"Mathematics"
] | 3,152 | [
"Planes (geometry)",
"Planar graphs"
] |
7,149,429 | https://en.wikipedia.org/wiki/Centro%20de%20Investigaci%C3%B3n%20de%20M%C3%A9todos%20Computacionales | Centro de Investigación de Métodos Computacionales (CIMEC, Research Center for Computational Methods) is a research institute located at Predio CONICET Santa Fe Santa Fe, Argentina.
It depends on the Universidad Nacional del Litoral, and on the National Scientific and Technical Research Council (CONICET). The main are... | Centro de Investigación de Métodos Computacionales | [
"Engineering"
] | 137 | [
"Engineering research institutes"
] |
7,149,503 | https://en.wikipedia.org/wiki/Arum%20italicum | Arum italicum is a species of flowering herbaceous perennial plant in the family Araceae, also known as Italian arum and Italian lords-and-ladies. It is native to the British Isles and much of the Mediterranean region, the Caucasus, Canary Islands, Madeira and northern Africa. It is also naturalized in Belgium, the Net... | Arum italicum | [
"Chemistry"
] | 815 | [
"Neurochemistry",
"Neurotoxins",
"Chemical ecology",
"Plant toxins"
] |
7,149,681 | https://en.wikipedia.org/wiki/Generalized%20dihedral%20group | In mathematics, the generalized dihedral groups are a family of groups with algebraic structures similar to that of the dihedral groups. They include the finite dihedral groups, the infinite dihedral group, and the orthogonal group O(2). Dihedral groups play an important role in group theory, geometry, and chemistry.
... | Generalized dihedral group | [
"Mathematics"
] | 1,358 | [
"Group theory",
"Fields of abstract algebra"
] |
7,149,861 | https://en.wikipedia.org/wiki/Mixed-mode%20chromatography | Mixed-mode chromatography (MMC), or multimodal chromatography, refers to chromatographic methods that utilize more than one form of interaction between the stationary phase and analytes in order to achieve their separation. What is distinct from conventional single-mode chromatography is that the secondary interactions... | Mixed-mode chromatography | [
"Chemistry"
] | 973 | [
"Chromatography",
"Separation processes"
] |
7,149,912 | https://en.wikipedia.org/wiki/Epidemiology%20of%20chikungunya | Chikungunya is a mosquito-borne alpha virus that was first isolated after a 1952 outbreak in modern-day Tanzania. The virus has circulated in forested regions of sub-Saharan African in cycles involving nonhuman primate hosts and arboreal mosquito vectors. Phylogenetic studies indicate that the urban transmission cycle... | Epidemiology of chikungunya | [
"Environmental_science"
] | 3,532 | [
"Epidemiology",
"Environmental social science"
] |
7,150,276 | https://en.wikipedia.org/wiki/Hydrophilic%20interaction%20chromatography | Hydrophilic interaction chromatography (or hydrophilic interaction liquid chromatography, HILIC) is a variant of normal phase liquid chromatography that partly overlaps with other chromatographic applications such as ion chromatography and reversed phase liquid chromatography. HILIC uses hydrophilic stationary phases... | Hydrophilic interaction chromatography | [
"Chemistry",
"Biology"
] | 1,982 | [
"Chromatography",
"Biochemistry methods",
"Separation processes",
"nan",
"Molecular biology",
"Biochemistry"
] |
7,150,540 | https://en.wikipedia.org/wiki/HASTAC | HASTAC (/ˈhāˌstak/), also known as the Humanities, Arts, Science and Technology Alliance and Collaboratory, is a virtual organization and platform comprising over 18,000 individuals and more than 400 affiliate institutions. Members of the HASTAC network actively contribute to the community through an open-access websit... | HASTAC | [
"Technology"
] | 1,282 | [
"Digital humanities",
"Information technology",
"Computing and society",
"Information technology organizations"
] |
7,151,375 | https://en.wikipedia.org/wiki/Space-oblique%20Mercator%20projection | Space-oblique Mercator projection is a map projection devised in the 1970s for preparing maps from Earth-survey satellite data. It is a generalization of the oblique Mercator projection that incorporates the time evolution of a given satellite ground track to optimize its representation on the map. The oblique Mercator... | Space-oblique Mercator projection | [
"Mathematics"
] | 465 | [
"Map projections",
"Coordinate systems"
] |
13,279,719 | https://en.wikipedia.org/wiki/List%20of%20widget%20toolkits | This article provides a list of widget toolkits (also known as GUI frameworks), used to construct the graphical user interface (GUI) of programs, organized by their relationships with various operating systems.
Low-level widget toolkits
Integrated in the operating system
Mac OS X uses Cocoa. Mac OS 9 and Mac OS X us... | List of widget toolkits | [
"Technology"
] | 3,137 | [
"Computing-related lists",
"Lists of software"
] |
13,279,771 | https://en.wikipedia.org/wiki/Modeling%20%28psychology%29 | Modeling is:
a method used in certain cognitive-behavioral techniques of psychotherapy whereby the client learns by imitation alone, copying a human model without any specific verbal direction by the therapist, and
a general process in which persons serve as models for others, exhibiting the behavior to be imitated b... | Modeling (psychology) | [
"Biology"
] | 467 | [
"Behavior",
"Behavioral concepts",
"Behaviorism"
] |
13,280,188 | https://en.wikipedia.org/wiki/20%2C000 | 20,000 (twenty thousand) is the natural number that comes after 19,999 and before 20,001.
20,000 is a round number and is also in the title of Jules Verne's 1870 novel Twenty Thousand Leagues Under the Seas.
Selected numbers in the range 20001–29999
20001 to 20999
20002 = number of surface-points of a tetrahedron w... | 20,000 | [
"Mathematics"
] | 1,343 | [
"Elementary mathematics",
"Integers",
"Mathematical objects",
"Numbers"
] |
13,280,205 | https://en.wikipedia.org/wiki/30%2C000 | 30,000 (thirty thousand) is the natural number that comes after 29,999 and before 30,001.
Selected numbers in the range 30001–39999
30001 to 30999
30029 = primorial prime
30030 = primorial
30031 = smallest composite number which is one more than a primorial
30203 = safe prime
30240 = harmonic divisor number
303... | 30,000 | [
"Mathematics"
] | 892 | [
"Elementary mathematics",
"Integers",
"Mathematical objects",
"Numbers"
] |
13,280,211 | https://en.wikipedia.org/wiki/40%2C000 | 40,000 (forty thousand) is the natural number that comes after 39,999 and before 40,001. It is the square of 200.
Selected numbers in the range 40001–49999
40001 to 40999
40320 = smallest factorial (8!) that is not a highly composite number
40425 = square pyramidal number
40585 = largest factorion
40678 = pentago... | 40,000 | [
"Mathematics"
] | 721 | [
"Elementary mathematics",
"Integers",
"Mathematical objects",
"Numbers"
] |
13,280,216 | https://en.wikipedia.org/wiki/50%2C000 | 50,000 (fifty thousand) is the natural number that comes after 49,999 and before 50,001.
Selected numbers in the range 50001–59999
50001 to 50999
50069 = 11 + 22 + 33 + 44 + 55 + 66
50400 = 27th highly composite number
50625 = 154, smallest fourth power that can be expressed as the sum of only five distinct four... | 50,000 | [
"Mathematics"
] | 625 | [
"Elementary mathematics",
"Integers",
"Mathematical objects",
"Numbers"
] |
13,280,221 | https://en.wikipedia.org/wiki/60%2C000 | 60,000 (sixty thousand) is the natural number that comes after 59,999 and before 60,001. It is a round number. It is the value of (75025).
Selected numbers in the range 60,000–69,999
60,001 to 60,999
60,049 = Leyland number using 3 & 10 (310 + 103)
60,101 = smallest prime with period of reciprocal 100
61,000 to 61... | 60,000 | [
"Mathematics"
] | 847 | [
"Elementary mathematics",
"Integers",
"Mathematical objects",
"Numbers"
] |
13,280,227 | https://en.wikipedia.org/wiki/70%2C000 | 70,000 (seventy thousand) is the natural number that comes after 69,999 and before 70,001. It is a round number.
Selected numbers in the range 70001–79999
70001 to 70999
70030 = largest number of digits of π that have been recited from memory
71000 to 71999
71656 = pentagonal pyramidal number
72000 to 72999
7277... | 70,000 | [
"Mathematics"
] | 400 | [
"Elementary mathematics",
"Integers",
"Mathematical objects",
"Numbers"
] |
13,280,231 | https://en.wikipedia.org/wiki/80%2C000 | 80,000'
(eighty thousand) is the natural number after 79,999 and before 80,001.
Selected numbers in the range 80,000–89,999
80,782 = Pell number P''14
81,081 = smallest abundant number ending in 1, 3, 7, or 9
81,181 = number of reduced trees with 25 nodes
82,000 = the only currently known number greater than 1 t... | 80,000 | [
"Mathematics"
] | 432 | [
"Elementary mathematics",
"Integers",
"Mathematical objects",
"Numbers"
] |
13,280,234 | https://en.wikipedia.org/wiki/90%2C000 | 90,000 (ninety thousand) is the natural number following 89,999 and preceding 90,001. It is the sum of the cubes of the first 24 positive integers, and is the square of 300.
Selected numbers in the range 90,000–99,999
90,625 = the only five-digit automorphic number: 906252 = 8212890625
91,125 = 453
91,144 = Fine n... | 90,000 | [
"Mathematics"
] | 454 | [
"Mathematical objects",
"Number stubs",
"Elementary mathematics",
"Integers",
"Numbers"
] |
13,280,509 | https://en.wikipedia.org/wiki/Molecular%20propeller | A Molecular propeller is a molecule that can propel fluids when rotated, due to its special shape that is designed in analogy to macroscopic propellers: it has several molecular-scale blades attached at a certain pitch angle around the circumference of a shaft, aligned along the rotational axis.
The molecular propell... | Molecular propeller | [
"Physics",
"Chemistry",
"Materials_science",
"Technology"
] | 421 | [
"Physical systems",
"Nanotechnology",
"Machines",
"Molecular machines"
] |
13,281,304 | https://en.wikipedia.org/wiki/V391%20Pegasi | V391 Pegasi, also catalogued as HS 2201+2610, is a blue-white subdwarf star approximately 4,400 light-years away in the constellation of Pegasus. The star is classified as an "extreme horizontal branch star". It is small, with only half the mass and a bit less than one quarter the diameter of the Sun. It has luminosity... | V391 Pegasi | [
"Astronomy"
] | 594 | [
"Pegasus (constellation)",
"Constellations"
] |
13,281,619 | https://en.wikipedia.org/wiki/Floor%20drain | A floor drain is a plumbing fixture that is installed in the floor of a structure, mainly designed to remove any standing water near it. They are usually round, but can also be square or rectangular. They usually range from ; most are in diameter. They have gratings that are made of metal or plastic. The floor around... | Floor drain | [
"Engineering"
] | 349 | [
"Construction",
"Plumbing"
] |
13,281,762 | https://en.wikipedia.org/wiki/Komatsu%20LAV | The is a Japanese military vehicle first produced in 2002. Currently used exclusively by the Japan Self-Defense Force (JSDF), it has seen use in the Iraq War. It is built by Komatsu Limited. Defense Systems Division in Komatsu, Ishikawa, Japan. Komatsu's factory designation for the vehicle is KU50W.
The exterior rese... | Komatsu LAV | [
"Engineering"
] | 733 | [
"Engineering vehicles",
"Komatsu vehicles"
] |
13,281,848 | https://en.wikipedia.org/wiki/Desorption%20electrospray%20ionization | Desorption electrospray ionization (DESI) is an ambient ionization technique that can be coupled to mass spectrometry (MS) for chemical analysis of samples at atmospheric conditions. Coupled ionization sources-MS systems are popular in chemical analysis because the individual capabilities of various sources combined wi... | Desorption electrospray ionization | [
"Physics",
"Chemistry"
] | 2,635 | [
"Spectrum (physical sciences)",
"Instrumental analysis",
"Mass",
"Ion source",
"Mass spectrometry",
"Matter"
] |
13,281,934 | https://en.wikipedia.org/wiki/Gregg%20Thompson%20%28astronomer%29 | Gregg D. Thompson of Brisbane, Australia is an amateur astronomer.
Astronomy
Gregg Thompson was one of the founding members of the Southern Astronomical Society (SAS).
Before 1981 he started making a set of charts of bright galaxies, designed to help deep sky observers in their search for extragalactic supernovae.
In ... | Gregg Thompson (astronomer) | [
"Astronomy"
] | 269 | [
"Astronomers",
"Amateur astronomers"
] |
13,283,214 | https://en.wikipedia.org/wiki/Jurjen%20Ferdinand%20Koksma | Jurjen Ferdinand Koksma (21 April 1904, Schoterland – 17 December 1964, Amsterdam) was a Dutch mathematician who specialized in analytic number theory.
Koksma received his Ph.D. degree (cum laude) in 1930 at the University of Groningen under supervision of Johannes van der Corput, with a thesis on Systems of Diophanti... | Jurjen Ferdinand Koksma | [
"Mathematics"
] | 316 | [
"Number theorists",
"Number theory"
] |
13,283,342 | https://en.wikipedia.org/wiki/Mining%20lamp | A mining lamp is a lamp, developed for the rigid necessities of underground mining operations. Most often it is worn on a hard hat in the form of a headlamp.
History
Types
1813 Dr William Reid Clanny Exhibited The Clanny Lamp
1815 Humphry Davy Exhibited The Davy Lamp
1815 George Stephenson Exhibited his Lamp
The ... | Mining lamp | [
"Engineering"
] | 472 | [
"Mining equipment"
] |
13,284,111 | https://en.wikipedia.org/wiki/Wu%27s%20method%20of%20characteristic%20set | Wenjun Wu's method is an algorithm for solving multivariate polynomial equations introduced in the late 1970s by the Chinese mathematician Wen-Tsun Wu. This method is based on the mathematical concept of characteristic set introduced in the late 1940s by J.F. Ritt. It is fully independent of the Gröbner basis method, i... | Wu's method of characteristic set | [
"Mathematics",
"Technology"
] | 1,717 | [
"Polynomials",
"Computer algebra",
"Computational mathematics",
"Fields of abstract algebra",
"Computer science",
"Algebraic geometry",
"Commutative algebra",
"Algebra"
] |
13,284,409 | https://en.wikipedia.org/wiki/Error%20guessing | In software testing, error guessing is a test method in which test cases used to find bugs in programs are established based on experience in prior testing. The scope of test cases usually rely on the software tester involved, who uses experience and intuition to determine what situations commonly cause software failur... | Error guessing | [
"Technology",
"Engineering"
] | 137 | [
"Software engineering",
"Computer programming",
"Software testing",
"Computers"
] |
13,284,467 | https://en.wikipedia.org/wiki/Lule%C3%A5%20algorithm | The Luleå algorithm of computer science, designed by , is a technique for storing and searching internet routing tables efficiently. It is named after the Luleå University of Technology, the home institute/university of the technique's authors. The name of the algorithm does not appear in the original paper describing... | Luleå algorithm | [
"Technology"
] | 1,141 | [
"Internet architecture",
"IT infrastructure"
] |
13,285,352 | https://en.wikipedia.org/wiki/Chilling%20requirement | The chilling requirement of a fruit is the minimum period of cold weather after which a fruit-bearing tree will blossom. It is often expressed in chill hours, which can be calculated in different ways, all of which essentially involve adding up the total amount of time in a winter spent at certain temperatures.
Some ... | Chilling requirement | [
"Biology"
] | 1,045 | [
"Plant physiology",
"Plants"
] |
13,285,816 | https://en.wikipedia.org/wiki/Potassium%20canrenoate | Potassium canrenoate (INN, JAN) or canrenoate potassium (USAN) (brand names Venactone, Soldactone), also known as aldadiene kalium, the potassium salt of canrenoic acid, is an aldosterone antagonist of the spirolactone group. Like spironolactone, it is a prodrug, and is metabolized to active canrenone in the body.
Pot... | Potassium canrenoate | [
"Chemistry"
] | 229 | [
"Chemicals in medicine",
"Prodrugs"
] |
13,285,821 | https://en.wikipedia.org/wiki/Canrenone | Canrenone, sold under the brand names Contaren, Luvion, Phanurane, and Spiroletan, is a steroidal antimineralocorticoid of the spirolactone group related to spironolactone which is used as a diuretic in Europe, including in Italy and Belgium. It is also an important active metabolite of spironolactone, and partially ac... | Canrenone | [
"Chemistry"
] | 821 | [
"Organic compounds",
"Chemicals in medicine",
"Human drug metabolites",
"Spiro compounds"
] |
13,286,310 | https://en.wikipedia.org/wiki/Printing%20and%20writing%20paper | Printing and writing papers are paper grades used for newspapers, magazines, catalogs, books, notebooks, commercial printing, business forms, stationeries, copying and digital printing. About 1/3 of the total pulp and paper marked (in 2000) is printing and writing papers. The pulp or fibers used in printing and writing... | Printing and writing paper | [
"Physics"
] | 594 | [
"Materials",
"Matter"
] |
13,288,599 | https://en.wikipedia.org/wiki/Trisonic%20Wind%20Tunnel | A Trisonic Wind Tunnel (TWT) is a wind tunnel so named because it is capable of testing in three speed regimes – subsonic, transonic, and supersonic. The earliest known trisonic wind tunnel was dated to 1950 and was located in El Segundo, California before it closed in 2007. Other trisonic wind tunnels currently in ope... | Trisonic Wind Tunnel | [
"Chemistry",
"Engineering"
] | 886 | [
"Piping",
"Chemical engineering",
"Fluid dynamics"
] |
13,288,679 | https://en.wikipedia.org/wiki/Dividing%20engine | A dividing engine is a device employed to mark graduations on measuring instruments.
History
There has always been a need for accurate measuring instruments. Whether it is a linear device such as a ruler or vernier or a circular device such as a protractor, astrolabe, sextant, theodolite, or setting circles for astro... | Dividing engine | [
"Physics",
"Astronomy",
"Mathematics"
] | 1,249 | [
"Dimensional instruments",
"Physical quantities",
"Quantity",
"Size",
"Astronomical instruments"
] |
13,289,313 | https://en.wikipedia.org/wiki/Souders%E2%80%93Brown%20equation | In chemical engineering, the Souders–Brown equation (named after Mott Souders and George Granger Brown) has been a tool for obtaining the maximum allowable vapor velocity in vapor–liquid separation vessels (variously called flash drums, knockout drums, knockout pots, compressor suction drums and compressor inlet drums)... | Souders–Brown equation | [
"Chemistry",
"Mathematics"
] | 729 | [
"Equations",
"Mathematical objects",
"Gas-liquid separation",
"Separation processes by phases"
] |
13,289,588 | https://en.wikipedia.org/wiki/Foundation%20integrity%20testing | Foundation integrity testing is the non-destructive testing of piled foundations. It was first used in the late 1960s, and has been developed over time by many companies. Three organizations supply a majority of the test equipment in use: CEBTP (Centre Expérimental de Recherches et d'Etudes du Bâtiment et des Travaux P... | Foundation integrity testing | [
"Engineering"
] | 92 | [
"Structural engineering",
"Bridges"
] |
13,289,657 | https://en.wikipedia.org/wiki/XHTML%2BMathML%2BSVG | XHTML+MathML+SVG is a W3C standard that describes an integration of MathML and Scalable Vector Graphics semantics with XHTML and Cascading Style Sheets. It is categorized as "obsolete" on the W3C's HTML Current Status page.
References
External links
W3C Working Draft
World Wide Web Consortium standards | XHTML+MathML+SVG | [
"Technology"
] | 73 | [
"Computing stubs",
"World Wide Web stubs"
] |
13,290,399 | https://en.wikipedia.org/wiki/Expanded%20clay%20aggregate | Lightweight expanded clay aggregate (LECA) or expanded clay (exclay) is a lightweight aggregate made by heating clay to around in a rotary kiln. The heating process causes gases trapped in the clay to expand, forming thousands of small bubbles and giving the material a porous structure. LECA has an approximately roun... | Expanded clay aggregate | [
"Physics",
"Engineering"
] | 1,128 | [
"Natural materials",
"Materials",
"Ceramic materials",
"Ceramic engineering",
"Matter"
] |
15,962,283 | https://en.wikipedia.org/wiki/Grave%20orb | A grave orb is a petrosphere that was put on a person's tomb. Grave orbs were made throughout Scandinavia from the Pre-Roman Iron Age until the Vendel era.
The grave orb could have been selected for its round shape or shaped by hand. They were then put in the centre of a burial site. Tumuli, stone circles and stone sh... | Grave orb | [
"Physics"
] | 209 | [
"Stones",
"Physical objects",
"Matter"
] |
15,962,940 | https://en.wikipedia.org/wiki/Rarian | Rarian is a document cataloging system (formerly known as Spoon). It manages documentation metadata, as specified by the Open Source Metadata Framework (OMF). Rarian is used by the GNOME desktop help browser, Yelp. It has replaced ScrollKeeper, as originally designed. It provides an API.
References
External links
Ra... | Rarian | [
"Technology"
] | 84 | [
"Metadata",
"Data"
] |
15,962,998 | https://en.wikipedia.org/wiki/Innovative%20Medicines%20Initiative | The Innovative Medicines Initiative (IMI) is a European initiative to improve the competitive situation of the European Union in the field of pharmaceutical research. The IMI is a joint initiative (public-private partnership) of the DG Research of the European Commission, representing the European Communities, and the ... | Innovative Medicines Initiative | [
"Chemistry",
"Biology"
] | 512 | [
"Pharmaceutical industry",
"Pharmacology",
"Life sciences industry"
] |
15,963,716 | https://en.wikipedia.org/wiki/Pipecolic%20acid | Pipecolic acid (piperidine-2-carboxylic acid) is an organic compound with the formula HNC5H9CO2H. It is a carboxylic acid derivative of piperidine and, as such, an amino acid, although not one encoded genetically. Like many other α-amino acids, pipecolic acid is chiral, although the S-stereoisomer is more common. It is... | Pipecolic acid | [
"Chemistry",
"Biology"
] | 272 | [
"Biochemistry stubs",
"Biotechnology stubs",
"Biochemistry"
] |
15,964,561 | https://en.wikipedia.org/wiki/Forensic%20materials%20engineering | Forensic materials engineering, a branch of forensic engineering, focuses on the material evidence from crime or accident scenes, seeking defects in those materials which might explain why an accident occurred, or the source of a specific material to identify a criminal. Many analytical methods used for material ident... | Forensic materials engineering | [
"Physics",
"Materials_science",
"Engineering"
] | 1,289 | [
"Applied and interdisciplinary physics",
"Materials science",
"nan"
] |
15,964,820 | https://en.wikipedia.org/wiki/European%20Chemical%20Society | The European Chemical Society (EuChemS) is a European non-profit organisation which promotes collaboration between non-profit scientific and technical societies in the field of chemistry.
Based in Brussels, Belgium, the association took over the role and responsibilities of the Federation of European Chemical Societie... | European Chemical Society | [
"Chemistry"
] | 1,496 | [
"Chemistry societies",
"nan"
] |
15,966,023 | https://en.wikipedia.org/wiki/Pyramid%20%28image%20processing%29 | Pyramid, or pyramid representation, is a type of multi-scale signal representation developed by the computer vision, image processing and signal processing communities, in which a signal or an image is subject to repeated smoothing and subsampling. Pyramid representation is a predecessor to scale-space representation a... | Pyramid (image processing) | [
"Engineering"
] | 1,067 | [
"Artificial intelligence engineering",
"Packaging machinery",
"Computer vision"
] |
15,966,621 | https://en.wikipedia.org/wiki/Z-SAN | Z-SAN is a proprietary type of storage area network licensed by Zetera corporation. Z-SAN hardware is bundled with a modified version of SAN-FS, which is a shared disk file system driver and management software product SAN File System (SFS) made by DataPlow. The shared disk file system allows multiple computers to ac... | Z-SAN | [
"Technology"
] | 357 | [
"Computing stubs",
"Computer network stubs"
] |
15,967,005 | https://en.wikipedia.org/wiki/Hadamard%27s%20lemma | In mathematics, Hadamard's lemma, named after Jacques Hadamard, is essentially a first-order form of Taylor's theorem, in which we can express a smooth, real-valued function exactly in a convenient manner.
Statement
Proof
Consequences and applications
See also
Citations
References
Real analysis
Theorems i... | Hadamard's lemma | [
"Mathematics"
] | 66 | [
"Theorems in mathematical analysis",
"Mathematical analysis",
"Mathematical problems",
"Mathematical theorems"
] |
15,967,058 | https://en.wikipedia.org/wiki/Quercus%20%C3%97%20warei | Quercus × warei is a hybrid oak tree in the genus Quercus. The tree is a hybrid of Quercus robur f. fastigiata (upright English oak) and Quercus bicolor (swamp white oak).
The hybrid is named for the American dendrologist George Ware, former Research Director at the Morton Arboretum in Illinois.
Cultivars
Two cultiva... | Quercus × warei | [
"Biology"
] | 421 | [
"Hybrid plants",
"Plants",
"Hybrid organisms"
] |
15,967,917 | https://en.wikipedia.org/wiki/Sodium%20citrate | Sodium citrate may refer to any of the sodium salts of citric acid (though most commonly the third):
Monosodium citrate
Disodium citrate
Trisodium citrate
The three forms of salt are collectively known by the E number E331.
Applications
Food
Sodium citrates are used as acidity regulators in food and drinks, and a... | Sodium citrate | [
"Chemistry"
] | 335 | [
"Chelating agents",
"Organic sodium salts",
"Process chemicals",
"Salts"
] |
15,968,309 | https://en.wikipedia.org/wiki/Laboratory%20B | Laboratory B (Russian: ), also known as Object B () or Object 2011 during its period of operation, was a former Soviet nuclear research site constructed in 1946 by in Chelyabinsk Oblast in Russia. Operated under the 9th Chief Directorate of the Soviet Ministry of Internal Affairs, it was a major site for the Soviet pr... | Laboratory B | [
"Chemistry",
"Biology"
] | 4,481 | [
"Radiobiology",
"Radiochemistry",
"Radioactivity"
] |
15,968,804 | https://en.wikipedia.org/wiki/Section%20modulus | In solid mechanics and structural engineering, section modulus is a geometric property of a given cross-section used in the design of beams or flexural members. Other geometric properties used in design include: area for tension and shear, radius of gyration for compression, and second moment of area and polar second m... | Section modulus | [
"Physics",
"Mathematics",
"Engineering"
] | 1,035 | [
"Structural engineering",
"Mechanical quantities",
"Physical quantities",
"Quantity",
"Structural analysis",
"Mechanics",
"Mechanical engineering",
"Aerospace engineering"
] |
15,969,110 | https://en.wikipedia.org/wiki/Allistatin | Allistatin is the collective name for two chemicals, allistatin I and allistatin II, which may be found in garlic. There is no conclusive evidence of its existence, or the existence of the related compound garlicin. It is a sulfur-free chemical and plays an active role within garlic. It is most likely a flavonoid.
The... | Allistatin | [
"Chemistry"
] | 123 | [
"Organic compounds",
"Organosulfur compounds"
] |
15,969,473 | https://en.wikipedia.org/wiki/Mycena%20leaiana | Mycena leaiana, commonly known as the orange mycena or Lea's mycena, is a species of saprobic fungi in the genus Mycena, family Mycenaceae. Characterized by their bright orange caps and stalks and reddish-orange gill edges, they usually grow in dense clusters on deciduous logs. The pigment responsible for the orange co... | Mycena leaiana | [
"Biology"
] | 830 | [
"Fungi",
"Fungus species"
] |
15,969,686 | https://en.wikipedia.org/wiki/Porosome | Porosomes are cup-shaped supramolecular structures in the cell membranes of eukaryotic cells where secretory vesicles transiently dock in the process of vesicle fusion and secretion. The transient fusion of secretory vesicle membrane at a porosome, base via SNARE proteins, results in the formation of a fusion pore or c... | Porosome | [
"Chemistry"
] | 717 | [
"Membrane biology",
"Molecular biology"
] |
15,969,808 | https://en.wikipedia.org/wiki/Tribromoisocyanuric%20acid | Tribromoisocyanuric acid (C3Br3N3O3) is a chemical compound used as a reagent for bromination in organic synthesis. It is a white crystalline powder with a strong bromine odour. It is similar to trichloroisocyanuric acid.
Uses
Tribromoisocyanuric acid is used for the bromination of aromatics and alkenes.
References... | Tribromoisocyanuric acid | [
"Chemistry"
] | 108 | [
"Organic compounds",
"Reagents for organic chemistry",
"Ureas"
] |
15,969,980 | https://en.wikipedia.org/wiki/Jerzy%20Giedymin | Jerzy Giedymin (September 18, 1925 – June 24, 1993) was a philosopher and historian of mathematics and science.
Life
Giedymin, of Polish origin, was born in 1925.
He studied at the University of Poznań under Kazimierz Ajdukiewicz. In 1953 Jerzy Giedymin succeeded Adam Wiegner at the Chair of Logic at the Faculty of ... | Jerzy Giedymin | [
"Mathematics"
] | 1,493 | [
"Mathematical logic",
"Mathematical logicians"
] |
15,970,956 | https://en.wikipedia.org/wiki/Haagerup%20property | In mathematics, the Haagerup property, named after Uffe Haagerup and also known as Gromov's a-T-menability, is a property of groups that is a strong negation of Kazhdan's property (T). Property (T) is considered a representation-theoretic form of rigidity, so the Haagerup property may be considered a form of strong no... | Haagerup property | [
"Physics",
"Mathematics"
] | 416 | [
"Geometric group theory",
"Group actions",
"Fields of abstract algebra",
"Representation theory",
"Symmetry"
] |
15,972,344 | https://en.wikipedia.org/wiki/Kappa%20Crucis%20%28star%29 | Kappa Crucis (κ Cru, HD 111973) is a spectroscopic binary star in the open cluster NGC 4755, which is also known as the Kappa Crucis Cluster or Jewel Box Cluster.
Location
κ Crucis is one of the brightest members of the open cluster that bears its name, better known as the Jewel Box Cluster. It forms one leg, at bott... | Kappa Crucis (star) | [
"Astronomy"
] | 291 | [
"Crux",
"Constellations"
] |
15,972,589 | https://en.wikipedia.org/wiki/DL%20Crucis | DL Crucis is a variable star in the constellation Crux.
Visibility
DL Crucis has a visual apparent magnitude of 6.3 so it is just visible with the unaided eye in dark skies. It lies in the small southern constellation of Crux, halfway between η Crucis and ζ Crucis and close to the constellation's brightest star α Cru... | DL Crucis | [
"Astronomy"
] | 370 | [
"Crux",
"Constellations"
] |
15,972,636 | https://en.wikipedia.org/wiki/Planarity%20testing | In graph theory, the planarity testing problem is the algorithmic problem of testing whether a given graph is a planar graph (that is, whether it can be drawn in the plane without edge intersections). This is a well-studied problem in computer science for which many practical algorithms have emerged, many taking advant... | Planarity testing | [
"Mathematics"
] | 1,442 | [
"Computational problems in graph theory",
"Computational mathematics",
"Graph theory",
"Computational problems",
"Planar graphs",
"Mathematical relations",
"Planes (geometry)",
"Mathematical problems"
] |
15,973,371 | https://en.wikipedia.org/wiki/Suicidal%20person | A suicidal person is one who is experiencing a personal suicide crisis; the person is seeking a means to die by suicide, or is contemplating suicide.
Recognizing a suicidal person
A suicidal person may exhibit certain behaviors. A person who has a preoccupation with death, talks excessively about suicide, or becomes ... | Suicidal person | [
"Biology"
] | 359 | [
"Behavior",
"Human behavior",
"Suicide"
] |
15,974,212 | https://en.wikipedia.org/wiki/Geohash | Geohash is a public domain geocode system invented in 2008 by Gustavo Niemeyer which encodes a geographic location into a short string of letters and digits. Similar ideas were introduced by G.M. Morton in 1966. It is a hierarchical spatial data structure which subdivides space into buckets of grid shape, which is one ... | Geohash | [
"Mathematics"
] | 2,848 | [
"Geographic coordinate systems",
"Coordinate systems"
] |
15,974,705 | https://en.wikipedia.org/wiki/Gelidiaceae | The Gelidiaceae is a small family of red algae containing eight genera. Many species of this algae are used to make agar.
Uses
Agar can be derived from many types of red seaweeds, including those from families such as Gelidiaceaae, Gracilariaceae, Gelidiellaceae and Pterocladiaceae. It is a polysaccharide located in t... | Gelidiaceae | [
"Biology"
] | 126 | [
"Edible algae",
"Algae"
] |
9,288,958 | https://en.wikipedia.org/wiki/Snell%27s%20window | Snell's window (also called Snell's circle or optical man-hole) is a phenomenon by which an underwater viewer sees everything above the surface through a cone of light of width of about 96 degrees. This phenomenon is caused by refraction of light entering water, and is governed by Snell's Law. The area outside Snell's ... | Snell's window | [
"Environmental_science"
] | 330 | [
"Water",
"Hydrology"
] |
9,290,979 | https://en.wikipedia.org/wiki/Inocybe%20hystrix | Inocybe hystrix is an agaric fungus in the family Inocybaceae. It forms mycorrhiza with surrounding deciduous trees. Fruit bodies are usually found growing alone or in small groups on leaf litter during autumn months. Unlike many Inocybe species, Inocybe hystrix is densely covered in brown scales, a characteristic that... | Inocybe hystrix | [
"Biology",
"Environmental_science"
] | 417 | [
"Poisonous fungi",
"Fungi",
"Toxicology",
"Fungus species"
] |
9,291,245 | https://en.wikipedia.org/wiki/Pandemic%20severity%20index | The pandemic severity index (PSI) was a proposed classification scale for reporting the severity of influenza pandemics in the United States. The PSI was accompanied by a set of guidelines intended to help communicate appropriate actions for communities to follow in potential pandemic situations. Released by the United... | Pandemic severity index | [
"Mathematics"
] | 1,014 | [
"Index numbers",
"Mathematical objects",
"Numbers"
] |
9,291,334 | https://en.wikipedia.org/wiki/Limonin | Limonin is a limonoid, and a bitter, white, crystalline substance found in citrus and other plants. It is also known as limonoate D-ring-lactone and limonoic acid di-delta-lactone. Chemically, it is a member of the class of compounds known as furanolactones.
Sources
Limonin is enriched in citrus fruits and is often f... | Limonin | [
"Chemistry"
] | 205 | [
"Organic compounds",
"Biomolecules by chemical classification",
"Terpenes and terpenoids",
"Natural products"
] |
9,292,180 | https://en.wikipedia.org/wiki/Theatrical%20smoke%20and%20fog | Theatrical smoke and fog, also known as special effect smoke, fog or haze, is a category of atmospheric effects used in the entertainment industry. The use of fogs can be found throughout motion picture and television productions, live theatre, concerts, at nightclubs and raves, amusement and theme parks and even in vi... | Theatrical smoke and fog | [
"Physics",
"Engineering"
] | 3,200 | [
"Visibility",
"Fog",
"Physical quantities",
"Scenic design",
"Design"
] |
9,292,690 | https://en.wikipedia.org/wiki/Risk%20dominance | Risk dominance and payoff dominance are two related refinements of the Nash equilibrium (NE) solution concept in game theory, defined by John Harsanyi and Reinhard Selten. A Nash equilibrium is considered payoff dominant if it is Pareto superior to all other Nash equilibria in the game. When faced with a choice among e... | Risk dominance | [
"Mathematics"
] | 1,624 | [
"Game theory",
"Game theory equilibrium concepts",
"Evolutionary game theory"
] |
9,292,749 | https://en.wikipedia.org/wiki/Forward%E2%80%93backward%20algorithm | The forward–backward algorithm is an inference algorithm for hidden Markov models which computes the posterior marginals of all hidden state variables given a sequence of observations/emissions , i.e. it computes, for all hidden state variables , the distribution . This inference task is usually called smoothing. The ... | Forward–backward algorithm | [
"Engineering"
] | 3,941 | [
"Error detection and correction",
"Reliability engineering"
] |
9,292,969 | https://en.wikipedia.org/wiki/2007%20Siberian%20orange%20snow | The Siberian orange snow of 2007 was an anomalous phenomenon that occurred in early February 2007. Beginning on 31 January 2007, an orange-tinted snow fell across an area of in Omsk Oblast, Siberian Federal District, Russia, approximately from Moscow, as well as into the neighboring Tomsk and Tyumen Oblasts. It was u... | 2007 Siberian orange snow | [
"Physics"
] | 421 | [
"Weather",
"Physical phenomena",
"Anomalous weather"
] |
9,293,352 | https://en.wikipedia.org/wiki/Carnivorous%20fungus | A carnivorous fungus or predaceous fungus is a fungus that derives some or most of its nutrients from trapping and eating microscopic or other minute animals. More than 200 species have been described, belonging to the phyla Ascomycota, Mucoromycotina, and Basidiomycota. They usually live in soil and many species trap ... | Carnivorous fungus | [
"Biology"
] | 345 | [
"Eating behaviors",
"Carnivory"
] |
9,293,603 | https://en.wikipedia.org/wiki/Mouth | The mouth is the body orifice through which many animals ingest food and vocalize. The body cavity immediately behind the mouth opening, known as the oral cavity (or in Latin), is also the first part of the alimentary canal, which leads to the pharynx and the gullet. In tetrapod vertebrates, the mouth is bounded on th... | Mouth | [
"Biology"
] | 2,011 | [
"Digestive system",
"Organ systems"
] |
9,295,203 | https://en.wikipedia.org/wiki/Mayo%E2%80%93Lewis%20equation | The Mayo–Lewis equation or copolymer equation in polymer chemistry describes the distribution of monomers in a copolymer. It was proposed by Frank R. Mayo and Frederick M. Lewis.
The equation considers a monomer mix of two components and and the four different reactions that can take place at the reactive chain end ... | Mayo–Lewis equation | [
"Chemistry",
"Materials_science",
"Mathematics",
"Engineering"
] | 1,338 | [
"Equations",
"Mathematical objects",
"Materials science",
"Polymer chemistry"
] |
9,295,370 | https://en.wikipedia.org/wiki/Polyot%20%28rocket%29 | The Polyot (, flight) (Also known as Sputnik, GRAU index 11A59) was an interim orbital carrier rocket, built to test ASAT spacecraft. It was required as a stopgap after the cancellation of the UR-200 programme, but before the Tsyklon could enter service. Only two were ever launched, the first on 1 November 1963, and th... | Polyot (rocket) | [
"Astronomy"
] | 216 | [
"Rocketry stubs",
"Astronomy stubs"
] |
9,296,238 | https://en.wikipedia.org/wiki/Chebyshev%E2%80%93Markov%E2%80%93Stieltjes%20inequalities | In mathematical analysis, the Chebyshev–Markov–Stieltjes inequalities are inequalities related to the problem of moments that were formulated in the 1880s by Pafnuty Chebyshev and proved independently by Andrey Markov and (somewhat later) by Thomas Jan Stieltjes. Informally, they provide sharp bounds on a measure from ... | Chebyshev–Markov–Stieltjes inequalities | [
"Mathematics"
] | 281 | [
"Theorems in mathematical analysis",
"Mathematical analysis",
"Binary relations",
"Mathematical relations",
"Inequalities (mathematics)",
"Mathematical problems",
"Mathematical theorems"
] |
9,296,327 | https://en.wikipedia.org/wiki/Digital%20era%20governance | The first idea of a digital administrative law was born in Italy in 1978 by Giovanni Duni and was developed in 1991 with the name teleadministration.
In the public administration debate about new public management (NPM), the concept of digital era governance (or DEG) is claimed by Patrick Dunleavy, Helen Margetts and ... | Digital era governance | [
"Technology"
] | 666 | [
"Information and communications technology",
"Digital technology"
] |
9,296,998 | https://en.wikipedia.org/wiki/Andrussow%20process | The Andrussow process is the dominant industrial process for the production of hydrogen cyanide. It involves the reaction of methane, ammonia, and oxygen. The process is catalyzed by a platinum-rhodium alloy.
2 CH4 + 2 NH3 + 3 O2 → 2 HCN + 6 H2O
Hydrogen cyanide is highly valued for the production or acrylon... | Andrussow process | [
"Chemistry"
] | 279 | [
"Catalysis",
"Organic redox reactions",
"Organic reactions",
"Name reactions",
"Chemical kinetics"
] |
9,297,009 | https://en.wikipedia.org/wiki/Phillip%20Burton%20Federal%20Building | The Phillip Burton Federal Building & United States Courthouse is a massive 21 floor, federal office building located at 450 Golden Gate Avenue near San Francisco's Civic Center and the San Francisco City Hall. The building occupies an entire city block, bounded by Golden Gate Avenue at the south, Turk Street at the n... | Phillip Burton Federal Building | [
"Engineering"
] | 335 | [
"Building engineering",
"Leadership in Energy and Environmental Design certified buildings"
] |
9,297,256 | https://en.wikipedia.org/wiki/Stephen%20Suomi | Stephen J. Suomi is chief of the Laboratory of Comparative Ethology at the National Institute of Child Health and Human Development (NICHD) in Bethesda, Maryland. He is also a research professor at the University of Virginia, the University of Maryland, and Johns Hopkins University. He is involved with the Experience-b... | Stephen Suomi | [
"Biology"
] | 597 | [
"Ethology",
"Behavior",
"Ethologists"
] |
9,298,279 | https://en.wikipedia.org/wiki/Sono%20arsenic%20filter | The Sono arsenic filter was invented in 2006 by Abul Hussam, who is a chemistry professor at George Mason University (GMU) in Fairfax, Virginia. It was developed to deal with the problem of arsenic contamination of groundwater. The filter is now in use in Hussam's native Bangladesh.
Development
Farmers had been drinki... | Sono arsenic filter | [
"Chemistry",
"Environmental_science"
] | 323 | [
"Water treatment",
"Water filters",
"Filters",
"Water pollution"
] |
9,299,409 | https://en.wikipedia.org/wiki/Nucleic%20acid%20thermodynamics | Nucleic acid thermodynamics is the study of how temperature affects the nucleic acid structure of double-stranded DNA (dsDNA). The melting temperature (Tm) is defined as the temperature at which half of the DNA strands are in the random coil or single-stranded (ssDNA) state. Tm depends on the length of the DNA molecule... | Nucleic acid thermodynamics | [
"Chemistry",
"Engineering",
"Biology"
] | 2,881 | [
"Biomolecules by chemical classification",
"Biological engineering",
"Chemical engineering",
"Biochemical engineering",
"Biotechnology",
"nan",
"Molecular biology",
"Biochemistry",
"Nucleic acids"
] |
9,299,479 | https://en.wikipedia.org/wiki/Third-party%20evidence%20for%20Apollo%20Moon%20landings | Third-party evidence for Apollo Moon landings is evidence, or analysis of evidence, about the Moon landings that does not come from either NASA or the U.S. government (the first party), or the Apollo Moon landing hoax theorists (the second party). This evidence provides independent confirmation of NASA's account of the... | Third-party evidence for Apollo Moon landings | [
"Astronomy"
] | 4,001 | [
"Observational astronomy",
"Astronomical sub-disciplines"
] |
9,299,508 | https://en.wikipedia.org/wiki/Conidiobolomycosis | Conidiobolomycosis is a rare long-term fungal infection that is typically found just under the skin of the nose, sinuses, cheeks and upper lips. It may present with a nose bleed or a blocked or runny nose. Typically there is a firm painless swelling which can slowly extend to the nasal bridge and eyes, sometimes causin... | Conidiobolomycosis | [
"Biology"
] | 1,016 | [
"Fungi",
"Fungal diseases"
] |
9,300,583 | https://en.wikipedia.org/wiki/Wax%20thermostatic%20element | The wax thermostatic element was invented in 1934 by Sergius Vernet (1899–1968). Its principal application is in automotive thermostats used in the engine cooling system. The first applications in the plumbing and heating industries were in Sweden (1970) and in Switzerland (1971).
Wax thermostatic elements transform h... | Wax thermostatic element | [
"Technology"
] | 1,878 | [
"Home automation",
"Temperature control"
] |
2,165,486 | https://en.wikipedia.org/wiki/Rosser%27s%20theorem | In number theory, Rosser's theorem states that the th prime number is greater than , where is the natural logarithm function. It was published by J. Barkley Rosser in 1939.
Its full statement is:
Let be the th prime number. Then for
In 1999, Pierre Dusart proved a tighter lower bound:
See also
Prime number theo... | Rosser's theorem | [
"Mathematics"
] | 109 | [
"Theorems in number theory",
"Theorems about prime numbers"
] |
2,165,494 | https://en.wikipedia.org/wiki/King%27s%20American%20Dispensatory | King's American Dispensatory is a book first published in 1854 that covers the uses of herbs used in American medical practice, especially by those involved in eclectic medicine, which was the botanical school of medicine in the 19th to 20th centuries. In 1880 John Uri Lloyd, an eclectic pharmacist of the late 19th an... | King's American Dispensatory | [
"Chemistry"
] | 161 | [
"Pharmacology",
"Pharmacology literature"
] |
2,165,654 | https://en.wikipedia.org/wiki/Gel%20extraction | In molecular biology, gel extraction or gel isolation is a technique used to isolate a desired fragment of intact DNA from an agarose gel following agarose gel electrophoresis. After extraction, fragments of interest can be mixed, precipitated, and enzymatically ligated together in several simple steps. This process, ... | Gel extraction | [
"Chemistry",
"Biology"
] | 677 | [
"Biochemistry",
"nan",
"Molecular biology"
] |
2,165,732 | https://en.wikipedia.org/wiki/Snag%20%28ecology%29 | In forest ecology, a snag refers to a standing dead or dying tree, often missing a top or most of the smaller branches. In freshwater ecology it refers to trees, branches, and other pieces of naturally occurring wood found sunken in rivers and streams; it is also known as coarse woody debris. Snags provide habitat for ... | Snag (ecology) | [
"Biology"
] | 1,360 | [
"Ecology terminology"
] |
2,165,771 | https://en.wikipedia.org/wiki/Methylthiomethyl%20ether | In organic chemistry a methylthiomethyl (MTM) ether is a protective group for hydroxyl groups. Hydroxyl groups are present in many chemical compounds and they must be protected during oxidation, acylation, halogenation, dehydration and other reactions to which they are susceptible.
Many kinds of protective groups for ... | Methylthiomethyl ether | [
"Chemistry"
] | 505 | [
"Protecting groups",
"Functional groups",
"Reagents for organic chemistry"
] |
2,166,357 | https://en.wikipedia.org/wiki/Caldarium | A (also called a calidarium, cella caldaria or cella coctilium) was a room with a hot plunge bath, used in a Roman bath complex.
The boiler supplying hot water to a baths complex was also called .
This was a very hot and steamy room heated by a hypocaust, an underfloor heating system using tunnels with hot air, heate... | Caldarium | [
"Engineering"
] | 327 | [
"Rooms",
"Architecture"
] |
2,166,569 | https://en.wikipedia.org/wiki/Shape%20resonance | In quantum mechanics, a shape resonance is a metastable state in which an electron is trapped due to the shape of a potential barrier.
Altunata describes a state as being a shape resonance if, "the internal state of the system remains unchanged upon disintegration of the quasi-bound level."
A more general discussion of... | Shape resonance | [
"Physics",
"Chemistry",
"Materials_science"
] | 1,118 | [
"Molecular physics",
"Spectrum (physical sciences)",
"Instrumental analysis",
"Scattering",
"Particle physics",
"Condensed matter physics",
"Nuclear physics",
"Spectroscopy"
] |
2,166,633 | https://en.wikipedia.org/wiki/Core-excited%20shape%20resonance | A core-excited shape resonance is a shape resonance in a system with more than one degree of freedom where, after fragmentation, one of the fragments is in an excited state. It is sometimes very difficult to distinguish a core-excited shape resonance from a Feshbach resonance.
See also
See the definition of Feshbach ... | Core-excited shape resonance | [
"Physics",
"Chemistry",
"Materials_science"
] | 83 | [
"Scattering stubs",
"Scattering",
"Condensed matter physics",
"Particle physics",
"Nuclear physics"
] |
2,166,801 | https://en.wikipedia.org/wiki/Empty%20domain | In first-order logic, the empty domain is the empty set having no members. In traditional and classical logic domains are restrictedly non-empty in order that certain theorems be valid. Interpretations with an empty domain are shown to be a trivial case by a convention originating at least in 1927 with Bernays and Schö... | Empty domain | [
"Mathematics"
] | 516 | [
"Mathematical logic",
"Predicate logic",
"Basic concepts in set theory"
] |
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