id int64 580 79M | url stringlengths 31 175 | text stringlengths 9 245k | source stringlengths 1 109 | categories stringclasses 160
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18,468,216 | https://en.wikipedia.org/wiki/Shearing%20%28manufacturing%29 | Shearing, also known as die cutting, is a process that cuts stock without the formation of chips or the use of burning or melting. Strictly speaking, if the cutting blades are straight the process is called shearing; if the cutting blades are curved then they are shearing-type operations. The most commonly sheared mate... | Shearing (manufacturing) | Physics,Technology | 693 |
74,398,303 | https://en.wikipedia.org/wiki/Periscope%20lens | A periscope lens, sometimes called a folded lens, is a mechanical assembly of lens elements that uses a prism or mirror to redirect the light through the lenses with a 90° angle to the optical axis, as in a periscope.
Uses
The Kenworthy/Netman Snorkel Camera System, introduced in 1967 by Norman Paul Kenworthy and Bob... | Periscope lens | Astronomy | 298 |
36,888,225 | https://en.wikipedia.org/wiki/HD%2091496 | HD 91496 (HR 4142) is a giant star in the constellation Carina, with an apparent magnitude is 4.92 and an MK spectral class of K4/5 III. It has been suspected of varying in brightness, but this has not been confirmed.
HD 91496 has a faint companion, six magnitudes fainter and away. It is a distant background star.
... | HD 91496 | Astronomy | 111 |
12,108,868 | https://en.wikipedia.org/wiki/Lapachol | Lapachol is a natural phenolic compound isolated from the bark of the lapacho tree. This tree is known botanically as Handroanthus impetiginosus, but was formerly known by various other botanical names such as Tabebuia avellanedae. Lapachol is also found in other species of Handroanthus.
Lapachol is usually encountere... | Lapachol | Chemistry | 160 |
16,189,704 | https://en.wikipedia.org/wiki/Project%20Valkyrie | The Valkyrie is a theoretical spacecraft designed by Charles Pellegrino and Jim Powell (a physicist at Brookhaven National Laboratory). The Valkyrie is theoretically able to accelerate to 92% the speed of light and decelerate afterward, carrying a small human crew to another star system.
Design
The Valkyrie's high per... | Project Valkyrie | Physics,Astronomy,Technology | 1,185 |
71,881,497 | https://en.wikipedia.org/wiki/Arsaalkyne | In chemistry, an arsaalkyne is chemical compound with a triple bond between carbon and arsenic. These organoarsenic compounds are rare, especially in comparison with the phosphaalkynes. The parent HCAs has been characterized spectroscopically, otherwise the only arsaalkynes have bulky organic substituents.
Synthesis... | Arsaalkyne | Chemistry | 224 |
58,867,428 | https://en.wikipedia.org/wiki/AR%20Andromedae | AR Andromedae (AR And) is a dwarf nova of the SS Cygni type in the constellation Andromeda. Its typical apparent visual magnitude is 17.6, but increases up to 11.0 magnitude during outbursts. The outbursts occur approximately every 23 days.
System
Dwarf novae systems are made up by a classical star with a white dwarf ... | AR Andromedae | Astronomy | 364 |
40,429,776 | https://en.wikipedia.org/wiki/Siderin | Siderin is a coumarin derivative produced by Aspergillus versicolor, an endophytic fungus found in the green alga Halimeda opuntia in the Red Sea.
External links
Coumarins
Methoxy compounds | Siderin | Chemistry | 54 |
38,069,259 | https://en.wikipedia.org/wiki/The%20Birds%20%28sculpture%29 | The Birds comprises a pair of outdoor sculptures depicting house sparrows by Myfanwy MacLeod, installed after the 2010 Winter Olympics in Southeast False Creek Olympic Plaza, which served as the site of the 2010 Olympic Village in Vancouver, British Columbia, Canada. The work depicts one male and one female house sparr... | The Birds (sculpture) | Physics,Mathematics | 746 |
19,700,525 | https://en.wikipedia.org/wiki/Hypertree%20network | A hypertree network is a network topology that shares some traits with the binary tree network. It is a variation of the fat tree architecture.
A hypertree of degree k depth d may be visualized as a 3-dimensional object whose front view is the top-down complete k-ary tree of depth d and the side view is the bottom-up ... | Hypertree network | Mathematics,Technology | 127 |
11,205,258 | https://en.wikipedia.org/wiki/Modified%20condition/decision%20coverage | Modified condition/decision coverage (MC/DC) is a code coverage criterion used in software testing.
Overview
MC/DC requires all of the below during testing:
Each entry and exit point is invoked
Each decision takes every possible outcome
Each condition in a decision takes every possible outcome
Each condition in a dec... | Modified condition/decision coverage | Engineering | 1,286 |
935,841 | https://en.wikipedia.org/wiki/Albert%20W.%20Tucker | Albert William Tucker (28 November 1905 – 25 January 1995) was a Canadian mathematician who made important contributions in topology, game theory, and non-linear programming.
Early life and education
Albert Tucker was born in Oshawa, Ontario, Canada, and earned his B.A. at the University of Toronto in 1928 and his M.A... | Albert W. Tucker | Mathematics | 928 |
36,987,089 | https://en.wikipedia.org/wiki/Liliger | The liliger is the hybrid offspring of a male lion (Panthera leo) and a female liger (Panthera leo♂ × Panthera tigris♀). Thus, it is a second generation hybrid. In accordance with Haldane's rule, male tigons and ligers are sterile, but female ligers and tigons can produce cubs. The first such hybrid was born in 1943, a... | Liliger | Biology | 481 |
45,503,186 | https://en.wikipedia.org/wiki/76P/West%E2%80%93Kohoutek%E2%80%93Ikemura | 76P/West–Kohoutek–Ikemura is a Jupiter-family periodic comet in the Solar System with a current orbital period of 6.48 years.
The comet was initially spotted on a photographic plate by Richard M. West at the European Southern Observatory Sky Atlas Laboratory, Geneva in January 1975, when it had a brightness of magnitu... | 76P/West–Kohoutek–Ikemura | Astronomy | 370 |
11,938,133 | https://en.wikipedia.org/wiki/DailyMed | DailyMed is a website operated by the U.S. National Library of Medicine (NLM) to publish up-to-date and accurate drug labels (also called a "package insert") to health care providers and the general public. The contents of DailyMed is provided and updated daily by the U.S. Food and Drug Administration (FDA). The FDA in... | DailyMed | Chemistry,Biology | 255 |
7,863,321 | https://en.wikipedia.org/wiki/HH%2046/47 | HH 46/47 is a complex of Herbig–Haro objects (HH objects), located around 450 parsecs (about 1,470 light-years) away in a Bok globule near the Gum nebula. Jets of partially ionized gas emerging from a young star produce visible shocks upon impact with the ambient medium. Discovered in 1977, it is one of the most studie... | HH 46/47 | Astronomy | 1,412 |
182,842 | https://en.wikipedia.org/wiki/Nernst%20heat%20theorem | The Nernst heat theorem was formulated by Walther Nernst early in the twentieth century and was used in the development of the third law of thermodynamics.
The theorem
The Nernst heat theorem says that as absolute zero is approached, the entropy change ΔS for a chemical or physical transformation approaches 0. This ... | Nernst heat theorem | Chemistry | 342 |
37,252,648 | https://en.wikipedia.org/wiki/Moderne%20Algebra | Moderne Algebra is a two-volume German textbook on graduate abstract algebra by , originally based on lectures given by Emil Artin in 1926 and by from 1924 to 1928. The English translation of 1949–1950 had the title Modern algebra, though a later, extensively revised edition in 1970 had the title Algebra.
The book wa... | Moderne Algebra | Mathematics | 665 |
78,442,020 | https://en.wikipedia.org/wiki/Sisunatovir | Sisunatovir is an investigational new drug that is being evaluated for the treatment of respiratory syncytial virus (RSV) infections. It functions as an orally administered RSV fusion inhibitor, targeting the RSV-F protein on the viral surface to prevent viral replication. Sisunatovir has been granted Fast Track design... | Sisunatovir | Chemistry,Biology | 138 |
43,948,738 | https://en.wikipedia.org/wiki/Promethium%28III%29%20chloride | Promethium(III) chloride is a chemical compound of promethium and chlorine with the formula PmCl3. It is an ionic, water soluble, crystalline salt that glows in the dark with a pale blue or green light due to promethium's intense radioactivity.
Preparation
Promethium(III) chloride is obtained from promethium(III) oxid... | Promethium(III) chloride | Chemistry | 318 |
63,790,350 | https://en.wikipedia.org/wiki/Eva%20Smolkov%C3%A1-Keulemansov%C3%A1 | Eva Smolková-Keulemansová, Weilová (27 April 1927 – 27 February 2024) was a survivor of Auschwitz, Neuengamme, and Bergen-Belsen concentration camps. After her liberation, she became a renowned Czech scientist and professor of analytical science at Charles University in Prague.
Early life
Smolková-Keulemansová was b... | Eva Smolková-Keulemansová | Chemistry | 1,019 |
3,795,398 | https://en.wikipedia.org/wiki/192%20%28number%29 | 192 (one hundred [and] ninety-two) is the natural number following 191 and preceding 193.
In mathematics
192 has the prime factorization . Because it has so many small prime factors, it is the smallest number with exactly 14 divisors, namely 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96 and 192. Because its only prime ... | 192 (number) | Mathematics | 129 |
40,513,454 | https://en.wikipedia.org/wiki/Clohessy%E2%80%93Wiltshire%20equations | The Clohessy–Wiltshire equations describe a simplified model of orbital relative motion, in which the target is in a circular orbit, and the chaser spacecraft is in an elliptical or circular orbit. This model gives a first-order approximation of the chaser's motion in a target-centered coordinate system. It is used to ... | Clohessy–Wiltshire equations | Astronomy,Engineering | 538 |
10,660,257 | https://en.wikipedia.org/wiki/Pendant%20group | In IUPAC nomenclature of chemistry, a pendant group (sometimes spelled pendent) or side group is a group of atoms attached to a backbone chain of a long molecule, usually a polymer. Pendant groups are different from pendant chains, as they are neither oligomeric nor polymeric.
For example, the phenyl groups are the pe... | Pendant group | Chemistry | 131 |
11,084,989 | https://en.wikipedia.org/wiki/Gravitational-wave%20astronomy | Gravitational-wave astronomy is a subfield of astronomy concerned with the detection and study of gravitational waves emitted by astrophysical sources.
Gravitational waves are minute distortions or ripples in spacetime caused by the acceleration of massive objects. They are produced by cataclysmic events such as the m... | Gravitational-wave astronomy | Physics,Astronomy | 3,483 |
521,613 | https://en.wikipedia.org/wiki/Victorian%20architecture | Victorian architecture is a series of architectural revival styles in the mid-to-late 19th century. Victorian refers to the reign of Queen Victoria (1837–1901), called the Victorian era, during which period the styles known as Victorian were used in construction. However, many elements of what is typically termed "Vict... | Victorian architecture | Engineering | 2,373 |
69,591,470 | https://en.wikipedia.org/wiki/Tengiz%20Beridze | Tengiz Beridze (Georgian: თენგიზ გიორგის ძე ბერიძე; 26 October 1939 – 3 December 2024) was a Georgian biochemist.
Life and career
In 1967 Beridze discovered satellite DNA in plants. Through his research from 1972 to 1975, it was found that closely related species of one genus differ in satellite DNA content. In 1986 ... | Tengiz Beridze | Chemistry,Biology | 1,133 |
17,290,814 | https://en.wikipedia.org/wiki/Quarry%20tub | A tub or quarry tub is a type of railway or tramway wagon used in quarries and other industrial locations for the transport of minerals (such as coal, sand, ore, clay and stone) from a quarry or mine face to processing plants or between various parts of an industrial site. This type of wagon may be small enough for one... | Quarry tub | Engineering | 165 |
42,719,835 | https://en.wikipedia.org/wiki/Uruz%20Project | The Uruz Project had the goal of breeding back the extinct aurochs (Bos p. primigenius). Uruz is the old Germanic word for aurochs. The Uruz Project was initiated in 2013 by the True Nature Foundation and presented at TEDx DeExtinction, a day-long conference organised by the Long Now Foundation with the support of TED... | Uruz Project | Chemistry,Engineering,Biology | 657 |
54,031,414 | https://en.wikipedia.org/wiki/Lysibody | Although cell wall carbohydrates are ideal immunotherapeutic targets due to their abundance in bacteria and high level of conservation, their poor immunogenicity compared with protein targets complicates their use for the development of protective antibodies. A lysibody is a chimeric antibody in which the Fab region i... | Lysibody | Chemistry,Biology | 436 |
2,388,223 | https://en.wikipedia.org/wiki/Instrument%20error | Instrument error refers to the error of a measuring instrument, or the difference between the actual value and the value indicated by the instrument. There can be errors of various types, and the overall error is the sum of the individual errors.
Types of errors include
systematic errors
random errors
absolute err... | Instrument error | Technology,Engineering | 464 |
39,176,314 | https://en.wikipedia.org/wiki/Elias%20Gyftopoulos | Elias Panayiotis Gyftopoulos (; July 4, 1927June 23, 2012) was a Greek-American engineer who contributed to thermodynamics both in its general formulation and its quantum foundations.
Gyftopoulos received an undergraduate degree in mechanical and electrical engineering in 1953 at the National Technical University of A... | Elias Gyftopoulos | Physics,Chemistry | 335 |
18,860,506 | https://en.wikipedia.org/wiki/Software%20ecosystem | Software Ecosystem is a book written by David G. Messerschmitt and Clemens Szyperski that explains the essence and effects of a "software ecosystem", defined as a set of businesses functioning as a unit and interacting with a shared market for software and services, together with relationships among them. These relatio... | Software ecosystem | Technology,Engineering | 320 |
37,921,649 | https://en.wikipedia.org/wiki/Lithium%20iodate | Lithium iodate (LiIO3) is a negative uniaxial crystal for nonlinear, acousto-optical and piezoelectric applications. It has been utilized for 347 nm ruby lasers.
Properties
Mohs hardness of lithium iodate is 3.5–4. Its linear thermal expansion coefficient at is 2.8·10−5/°C (a-axis) and 4.8·10−5/°C (c-axis). Its trans... | Lithium iodate | Chemistry | 120 |
37,476,422 | https://en.wikipedia.org/wiki/Vladimir%20Kanovei | Vladimir G. Kanovei (born 1951) is a Russian mathematician working at the Institute for Information Transmission Problems in Moscow, Russia. His interests include mathematical logic and foundations, as well as mathematical history.
Selected publications
.
Kanovei, Vladimir; Reeken, Michael; Nonstandard analysis, axi... | Vladimir Kanovei | Mathematics | 680 |
49,994,189 | https://en.wikipedia.org/wiki/Tashiro%27s%20indicator | Tashiro's indicator is a pH indicator (pH value: 4.4–6.2), mixed indicator composed of a solution of methylene blue (0.1%) and methyl red (0.03%) in ethanol or in methanol.
It can be used for the titration of ammonia in Kjeldahl analysis.
Colours
In acids: violet
At equivalence point (pH 5.2): grey
In bases: green... | Tashiro's indicator | Chemistry,Materials_science | 128 |
52,846,747 | https://en.wikipedia.org/wiki/Mosaic%20coevolution | Mosaic coevolution is a theory in which geographic location and community ecology shape differing coevolution between strongly interacting species in multiple populations. These populations may be separated by space and/or time. Depending on the ecological conditions, the interspecific interactions may be mutualistic o... | Mosaic coevolution | Biology | 929 |
2,177,591 | https://en.wikipedia.org/wiki/Aft-crossing%20trajectory | In 2005, a new trajectory that an air-launched rocket could take to put satellites into orbit was tested. Until this time, launch vehicles such as the Pegasus rocket, or rocket planes such as the X-1, X-15, or SpaceShipOne, which were carried under an aircraft pointing in the same direction as the fuselage, would have ... | Aft-crossing trajectory | Astronomy | 246 |
59,442 | https://en.wikipedia.org/wiki/Baryte | Baryte, barite or barytes ( or ) is a mineral consisting of barium sulfate (BaSO4). Baryte is generally white or colorless, and is the main source of the element barium. The baryte group consists of baryte, celestine (strontium sulfate), anglesite (lead sulfate), and anhydrite (calcium sulfate). Baryte and celestine ... | Baryte | Physics,Chemistry | 1,794 |
8,924,477 | https://en.wikipedia.org/wiki/Ralph%20Benjamin | Ralph Benjamin (17 November 1922 – 7 May 2019) was a British scientist and electrical engineer.
Biography
Benjamin was born in Darmstadt, Germany. He attended boarding school in Switzerland from 1937, and was sent to England in 1939 as a refugee. He studied at Ellesmere College and at Imperial College London where he... | Ralph Benjamin | Engineering | 767 |
75,331,575 | https://en.wikipedia.org/wiki/Schliemann%27s%20Trench | Schliemann's Trench (sometimes referred to as Schliemann's Great Trench) is the name commonly given to a gash cut into the side of Hisarlik, Turkey, between 1871 and 1890 by Heinrich Schliemann in his quest to find the ruins of Troy. By digging this trench, Schliemann destroyed a large portion of the site.
Excavation... | Schliemann's Trench | Engineering | 513 |
14,574,654 | https://en.wikipedia.org/wiki/OPN1MW | Green-sensitive opsin is a protein that in humans is encoded by the OPN1MW gene.
OPN1MW2 is a similar opsin.
The OPN1MW gene provides instructions for making an opsin pigment that is more sensitive to light in the middle of the visible spectrum (yellow/green light).
See also
Opsin
OPN1LW
References
Further readin... | OPN1MW | Chemistry | 113 |
59,941,185 | https://en.wikipedia.org/wiki/Hill%20Top%20Colliery | The Hill Top Colliery in Sharneyford between Bacup and Todmorden was, until 2014, the last coal mine still in operation in Lancashire.
Foundation
The Hill Top Colliery was opened in 1948. In 1948, the National Coal Board built two drifts leading downwards into the average thick Union coal seam. Under the National C... | Hill Top Colliery | Engineering | 922 |
3,206,060 | https://en.wikipedia.org/wiki/Syntax%20%28programming%20languages%29 | In computer science, the syntax of a computer language is the rules that define the combinations of symbols that are considered to be correctly structured statements or expressions in that language. This applies both to programming languages, where the document represents source code, and to markup languages, where the... | Syntax (programming languages) | Engineering | 2,953 |
17,710,932 | https://en.wikipedia.org/wiki/WASP-14 | WASP-14 or BD+22 2716 is a star in the constellation Boötes. The SuperWASP project has observed and classified this star as a variable star, perhaps due to the eclipsing planet.
Planetary system
WASP-14b is an extrasolar planet discovered in 2008. This is one of the densest exoplanets known.
Its radius best fits the m... | WASP-14 | Astronomy | 137 |
14,836,599 | https://en.wikipedia.org/wiki/Hydroextractor | Hydroextractors are machines which are used in the textile processing industry. These are mainly centrifuges. The wet material is placed in the extractor, which has a wall of perforated metal, generally stainless steel. The internal drum rotates at high speed, thus throwing out the water contained in it. The use of the... | Hydroextractor | Chemistry,Engineering | 126 |
65,355,102 | https://en.wikipedia.org/wiki/Cure%20Rare%20Disease | Cure Rare Disease is a non-profit biotechnology company based in Boston, Massachusetts that is working to create novel therapeutics using gene therapy, gene editing (CRISPR technology) and antisense oligonucleotides to treat people impacted by rare and ultra-rare genetic neuromuscular conditions.
History
Richard Horg... | Cure Rare Disease | Biology | 847 |
40,521,255 | https://en.wikipedia.org/wiki/Naz%C4%B1m%20Terzioglu | Nazım Terzioğlu (1912–September 20, 1976) was one of the first mathematicians in Turkish academia.
His son, Tosun Terzioğlu was also a mathematician.
Early life
Nazım Terzioğlu completed his primary education in his place of birth, Kayseri. He started his secondary education in Istanbul and then continued in Izmir u... | Nazım Terzioglu | Mathematics | 3,139 |
61,625,044 | https://en.wikipedia.org/wiki/Hair%20oil | Hair oil is an oil-based cosmetic product intended to improve the condition of hair. Various types of oils may be included in hair oil products. These often purport to aid with hair growth, dryness, or damage.
History
Ancient Egyptians paid special attention to hair and images of hairdressers are depicted in ancient ... | Hair oil | Physics,Chemistry | 547 |
52,332,113 | https://en.wikipedia.org/wiki/Gr%C3%A9gory%20Chatonsky | Grégory Chatonsky (May 4, 1971) is a French and Canadian Artist who works with interactive installations, networked devices, photographs and sculptures. He explores the relationship between technologies and affectivity creating new forms of fiction.
Early life and education
After completing studies in Visual Arts and... | Grégory Chatonsky | Technology | 943 |
1,999,630 | https://en.wikipedia.org/wiki/Benzoin%20%28resin%29 | Benzoin or benjamin (corrupted pronunciation) is a balsamic resin obtained from the bark of several species of trees in the genus Styrax. It is used in perfumes and some kinds of incense and as a flavoring and medicine (see tincture of benzoin). It is distinct from the chemical compound benzoin, which is ultimately de... | Benzoin (resin) | Physics,Chemistry | 632 |
14,895 | https://en.wikipedia.org/wiki/Insulin | Insulin (, from Latin insula, 'island') is a peptide hormone produced by beta cells of the pancreatic islets encoded in humans by the insulin (INS) gene. It is the main anabolic hormone of the body. It regulates the metabolism of carbohydrates, fats, and protein by promoting the absorption of glucose from the blood int... | Insulin | Chemistry,Biology | 11,279 |
4,439,998 | https://en.wikipedia.org/wiki/Uranium%20borohydride | Uranium borohydride is the inorganic compound with the empirical formula U(BH4)4. Two polymeric forms are known, as well as a monomeric derivative that exists in the gas phase. Because the polymers convert to the gaseous form at mild temperatures, uranium borohydride once attracted much attention. It is solid green.
... | Uranium borohydride | Chemistry | 584 |
55,339,303 | https://en.wikipedia.org/wiki/The%20Rickchurian%20Mortydate | "The Rickchurian Mortydate" is the tenth and final episode of the third season of the American science fiction television series Rick and Morty follows the titular grandson and grandfather duo as they feud with the President of the United States. The episode, directed by Anthony Chun and written by series co-creator Da... | The Rickchurian Mortydate | Physics,Mathematics | 904 |
42,935 | https://en.wikipedia.org/wiki/Detection | In general, detection is the action of accessing information without specific cooperation from with the sender.
In the history of radio communications, the term "detector" was first used for a device that detected the simple presence or absence of a radio signal, since all communications were in Morse code. The term... | Detection | Technology | 352 |
1,714,346 | https://en.wikipedia.org/wiki/Freiberg%20University%20of%20Mining%20and%20Technology | The Technische Universität Bergakademie Freiberg (abbreviation: TU Bergakademie Freiberg, TUBAF) is a public university of technology with 3,471 students in the city of Freiberg, Saxony, Germany. The university's focuses are exploration, mining & extraction, processing, and recycling of natural resources & scrap, as we... | Freiberg University of Mining and Technology | Engineering | 4,816 |
14,799,971 | https://en.wikipedia.org/wiki/KDM5D | Lysine-specific demethylase 5D is an enzyme that in humans is encoded by the KDM5D gene. KDM5D belongs to the alpha-ketoglutarate-dependent hydroxylases superfamily.
This gene encodes a protein containing zinc finger domains. A short peptide derived from this protein is a minor histocompatibility antigen which can lea... | KDM5D | Chemistry,Biology | 113 |
47,572,997 | https://en.wikipedia.org/wiki/Induced%20thymic%20epithelial%20cell | An induced thymic epithelial cell (iTEC) is a cell that has been induced to become a thymic epithelial cell.
References
Stem cells
Thymus
Organ transplantation | Induced thymic epithelial cell | Biology | 39 |
1,530,353 | https://en.wikipedia.org/wiki/Mutation%20rate | In genetics, the mutation rate is the frequency of new mutations in a single gene, nucleotide sequence, or organism over time. Mutation rates are not constant and are not limited to a single type of mutation; there are many different types of mutations. Mutation rates are given for specific classes of mutations. Point ... | Mutation rate | Physics,Biology | 2,322 |
18,879,982 | https://en.wikipedia.org/wiki/Bi-specific%20T-cell%20engager | Bi-specific T-cell engager (BiTE) is a class of artificial bispecific monoclonal antibodies that are investigated for use as anti-cancer drugs. They direct a host's immune system, more specifically the T cells' cytotoxic activity, against cancer cells. BiTE is a registered trademark of Micromet AG (fully owned subsidia... | Bi-specific T-cell engager | Biology | 788 |
1,690,295 | https://en.wikipedia.org/wiki/Resource%20%28project%20management%29 | In project management, resources are required to carry out the project tasks. These can be people, equipment, facilities, funding, or anything else capable of definition (usually other than labour) required for the completion of a project activity. The lack of a resource can therefore be a constraint on the completion ... | Resource (project management) | Physics | 223 |
18,475,687 | https://en.wikipedia.org/wiki/Linagliptin | Linagliptin, sold under the brand name Tradjenta among others, is a medication used to treat type 2 diabetes (but not type 1) in conjunction with exercise and diet. It is generally less preferred than metformin and sulfonylureas as an initial treatment. It is taken by mouth.
Common side effects include inflammation of... | Linagliptin | Chemistry | 375 |
11,598,515 | https://en.wikipedia.org/wiki/Lillie%27s%20trichrome | Lillie's trichrome is a combination of dyes used in histology.
It is similar to Masson's trichrome stain, but it uses Biebrich scarlet for the plasma stain. It was initially published by Ralph D. Lillie in 1940. It is applied by submerging the fixated sample into the following three solutions: Weigert's iron hematoxyl... | Lillie's trichrome | Chemistry,Biology | 204 |
14,862,049 | https://en.wikipedia.org/wiki/3C%20299 | 3C 299 is a radio galaxy/quasar located in the constellation Boötes.
References
External links
www.jb.man.ac.uk/atlas/ (J. P. Leahy)
3C 299
Boötes
299 | 3C 299 | Astronomy | 50 |
2,020,947 | https://en.wikipedia.org/wiki/Biological%20Innovation%20for%20Open%20Society | BiOS (Biological Open Source/Biological Innovation for Open Society) is an international initiative to foster innovation and freedom to operate in the biological sciences. BiOS was officially launched on 10 February 2005 by Cambia, an independent, international non-profit organization dedicated to democratizing innovat... | Biological Innovation for Open Society | Engineering,Biology | 951 |
47,525,633 | https://en.wikipedia.org/wiki/Time%20in%20Lebanon | Time in Lebanon is given by Eastern European Time (EET) (UTC+02:00) or Eastern European Summer Time (EEST) (UTC+03:00) during the summer.
Postponed time change in 2023
On 23 March 2023, two days before the scheduled switch to Eastern European Summer Time (EEST), Lebanon's government postponed the change from 25 March... | Time in Lebanon | Physics | 258 |
76,073,805 | https://en.wikipedia.org/wiki/ArkUI | ArkUI is a declarative based user interface framework for building user interfaces on native HarmonyOS, OpenHarmony alongside Oniro applications developed by Huawei for the ArkTS and Cangjie programming language.
Overview
ArkUI 3.0 is declarative in eTS (extended TypeScript) in HarmonyOS 3.0, followed by main ArkTS p... | ArkUI | Technology,Engineering | 1,053 |
7,976,609 | https://en.wikipedia.org/wiki/Sphygmograph | The sphygmograph ( ) was a mechanical device used to measure blood pressure in the mid-19th century. It was developed in 1854 by German physiologist Karl von Vierordt (1818–1884). It is considered the first external, non-intrusive device used to estimate blood pressure.
The device was a system of levers hooked to a sc... | Sphygmograph | Technology,Engineering,Biology | 381 |
853,141 | https://en.wikipedia.org/wiki/Motzkin%20number | In mathematics, the th Motzkin number is the number of different ways of drawing non-intersecting chords between points on a circle (not necessarily touching every point by a chord). The Motzkin numbers are named after Theodore Motzkin and have diverse applications in geometry, combinatorics and number theory.
The M... | Motzkin number | Mathematics | 539 |
160,688 | https://en.wikipedia.org/wiki/Premium%20Bonds | Premium Bonds is a lottery bond scheme organised by the United Kingdom government since 1956. At present it is managed by the government's National Savings and Investments agency.
The principle behind Premium Bonds is that rather than the stake being gambled, as in a usual lottery, it is the interest on the bonds that... | Premium Bonds | Technology | 2,277 |
861,338 | https://en.wikipedia.org/wiki/Teuthology | Teuthology (from Greek τεῦθος, "cuttlefish, squid", and -λογία, -logia) is the study of cephalopods, which are members of the class Cephalopoda in the phylum Mollusca. Some common examples of cephalopods are octopus, squid, and cuttlefish. Teuthology is a large area of study that covers cephalopod life cycles, reproduc... | Teuthology | Biology | 326 |
52,441,236 | https://en.wikipedia.org/wiki/Dimethandrolone%20dodecylcarbonate | Dimethandrolone dodecylcarbonate (developmental code name CDB-4730), or dimethandrolone dodecanoylcarbonate, also known as 7α,11β-dimethyl-19-nortestosterone 17β-dodecylcarbonate, is a synthetic and orally active anabolic–androgenic steroid (AAS) and a derivative of nandrolone (19-nortestosterone) which was developed b... | Dimethandrolone dodecylcarbonate | Chemistry | 242 |
341,265 | https://en.wikipedia.org/wiki/Jungle | A jungle is land covered with dense forest and tangled vegetation, usually in tropical climates. Application of the term has varied greatly during the past century.
Etymology
The word jungle originates from the Sanskrit word jaṅgala (), meaning rough and arid. It came into the English language in the 18th century via ... | Jungle | Biology | 1,158 |
24,321,909 | https://en.wikipedia.org/wiki/OpenLR | OpenLR is a royalty-free open standard for "procedures and formats for the encoding, transmission, and decoding of local data irrespective of the map" developed by TomTom.
The format allows locations localised on one map to be found on another map to which the data have been transferred.
OpenLR requires that the coor... | OpenLR | Technology | 173 |
23,798 | https://en.wikipedia.org/wiki/Poincar%C3%A9%20conjecture | In the mathematical field of geometric topology, the Poincaré conjecture (, , ) is a theorem about the characterization of the 3-sphere, which is the hypersphere that bounds the unit ball in four-dimensional space.
Originally conjectured by Henri Poincaré in 1904, the theorem concerns spaces that locally look like ord... | Poincaré conjecture | Mathematics | 4,869 |
16,313,813 | https://en.wikipedia.org/wiki/Eyesore | An eyesore is something that is largely considered to look unpleasant or ugly. Its technical usage is as an alternative perspective to the notion of landmark. Common examples include dilapidated buildings, graffiti, litter, polluted areas, and excessive commercial signage such as billboards. Some eyesores may be a matt... | Eyesore | Engineering | 1,218 |
54,382,705 | https://en.wikipedia.org/wiki/1%2C4-Diazacycloheptane | 1,4-Diazacycloheptane is an organic compound with the formula (CH2)5(NH)2. This cyclic diamine is a colorless oily liquid that is soluble in polar solvents. It is studied as a chelating ligand. The N-H centers can be replaced with many other groups.
It has known use in piperazine pharmaceuticals, for example:
Fasudil
... | 1,4-Diazacycloheptane | Chemistry | 122 |
68,604,844 | https://en.wikipedia.org/wiki/Mars%20and%20the%20Mind%20of%20Man | Mars and the Mind of Man is a non-fiction book chronicling a public symposium at the California Institute of Technology on November 12, 1971. The panel consisted of five luminaries of science, literature, and journalism: Ray Bradbury; Arthur C. Clarke; Bruce C. Murray; Carl Sagan and Walter Sullivan. These five are the... | Mars and the Mind of Man | Astronomy | 566 |
37,493,716 | https://en.wikipedia.org/wiki/C1orf109 | Chromosome 1 open reading frame 109 is a protein in humans that is encoded by the C1orf109 gene.
Clinical significance
This gene may play a role in cancer cell proliferation.
References
External links
Uncharacterized proteins | C1orf109 | Biology | 46 |
14,014,315 | https://en.wikipedia.org/wiki/49%20Cassiopeiae | 49 Cassiopeiae is a binary star system in the northern circumpolar constellation of Cassiopeia. It is visible to the naked eye as a faint, yellow-hued point of light with an apparent visual magnitude of 5.22. The system is located about 412 light years away from the Sun, based on parallax. The pair had an angular separ... | 49 Cassiopeiae | Astronomy | 304 |
638,998 | https://en.wikipedia.org/wiki/Congaree%20National%20Park | Congaree National Park is a national park of the United States in central South Carolina, 18 miles southeast of the state capital, Columbia. The park preserves the largest tract of old growth bottomland hardwood forest left in the United States. The lush trees growing in its floodplain forest are some of the tallest i... | Congaree National Park | Biology | 1,484 |
4,024,093 | https://en.wikipedia.org/wiki/Thermal%20efficiency | In thermodynamics, the thermal efficiency () is a dimensionless performance measure of a device that uses thermal energy, such as an internal combustion engine, steam turbine, steam engine, boiler, furnace, refrigerator, ACs etc.
For a heat engine, thermal efficiency is the ratio of the net work output to the heat inp... | Thermal efficiency | Physics,Chemistry,Mathematics,Engineering | 3,185 |
1,273,765 | https://en.wikipedia.org/wiki/Cerberin | Cerberin is a type of cardiac glycoside, found in the seeds of the dicotyledonous angiosperm genus Cerbera; including the suicide tree (Cerbera odollam) and the sea mango (Cerbera manghas). As a cardiac glycoside, cerberin disrupts the function of the heart by blocking its sodium and potassium ATPase. Cerberin can be u... | Cerberin | Chemistry | 2,207 |
37,402,637 | https://en.wikipedia.org/wiki/APRS%20Calling | APRS Calling is a manual procedure for calling stations on the Automatic Packet Reporting System (APRS) to initiate communications on another frequency, or possibly by other means. It is inspired by Digital Selective Calling, a part of the Global Maritime Distress Safety System. It also builds on existing digital proce... | APRS Calling | Technology | 464 |
60,071,977 | https://en.wikipedia.org/wiki/Suillus%20kaibabensis | Suillus kaibabensis is a species of fungus in the family Boletaceae. The species was first described scientifically by American mycologist Harry D. Thiers.
Description
Suillus kaibabensis is a hardy yellow member of the genus Suillus. While yellow is the primary color, it can also include brown and white tones in va... | Suillus kaibabensis | Biology | 310 |
25,312,638 | https://en.wikipedia.org/wiki/Hair%20whorl%20%28horse%29 | A hair whorl is a patch of hair growing in the opposite direction of the rest of the hair. Hair whorls can occur on animals with hairy coats, and are often found on horses and cows. Locations where whorls are found in equines include the stomach, face, stifle and hocks. Hair whorls in horses are also known as crowns, s... | Hair whorl (horse) | Biology | 964 |
1,968,245 | https://en.wikipedia.org/wiki/Paul%20Kunz | Paul Kunz (December 20, 1942 – September 12, 2018) was an American particle physicist and software developer, who initiated the deployment of the first web server outside of Europe. After a meeting in September 1991 with Tim Berners-Lee of CERN, he returned to the Stanford Linear Accelerator Center (SLAC) with word of ... | Paul Kunz | Technology | 247 |
19,657,849 | https://en.wikipedia.org/wiki/Blossom%20%28functional%29 | In numerical analysis, a blossom is a functional that can be applied to any polynomial, but is mostly used for Bézier and spline curves and surfaces.
The blossom of a polynomial ƒ, often denoted is completely characterised by the three properties:
It is a symmetric function of its arguments:
(where π is any perm... | Blossom (functional) | Mathematics | 93 |
12,077,900 | https://en.wikipedia.org/wiki/UK%20Threat%20Levels | The United Kingdom Terror Threat Levels, often referred to as UK Threat Levels, are the alert states that have been in use since 1 August 2006 by the British government to warn of forms of terrorist activity. In September 2010 the threat levels for Northern Ireland-related terrorism were also made available. In July 20... | UK Threat Levels | Technology | 1,039 |
34,344,124 | https://en.wikipedia.org/wiki/Terminator%202%3A%20Judgment%20Day | Terminator 2: Judgment Day is a 1991 American science fiction action film directed by James Cameron, who co-wrote the script with William Wisher. Starring Arnold Schwarzenegger, Linda Hamilton, and Robert Patrick, it is the sequel to The Terminator (1984) and is the second installment in the Terminator franchise. In th... | Terminator 2: Judgment Day | Materials_science | 14,073 |
36,948,506 | https://en.wikipedia.org/wiki/Library%20portal | A library portal is an interface to access library resources and services through a single access and management point for users: for example, by combining the circulation and catalog functions of an integrated library system (ILS) with additional tools and facilities.
Definition
A library portal is defined as "a comb... | Library portal | Engineering | 1,356 |
2,139,915 | https://en.wikipedia.org/wiki/Mason%27s%20mark | A mason's mark is an engraved symbol often found on dressed stone in buildings and other public structures.
In stonemasonry
Regulations issued in Scotland in 1598 by James VI's Master of Works, William Schaw, stated that on admission to the guild, every mason had to enter his name and his mark in a register. There a... | Mason's mark | Mathematics,Engineering | 463 |
9,804,476 | https://en.wikipedia.org/wiki/Itching%20powder | Itching powder is a powder or powder-like substance that induces itching when applied onto human skin. This is usually done as a practical joke or prank to an unsuspecting victim.
Description and uses
The cause of the irritation can be mechanical, such as products containing ground rose hips. Another common ingredien... | Itching powder | Physics | 362 |
17,887,935 | https://en.wikipedia.org/wiki/Polyvinyl%20chloride%20acetate | Polyvinyl chloride acetate (PVCA) is a thermoplastic copolymer of vinyl chloride and vinyl acetate. It is used in the manufacture of electrical insulation, of protective coverings (including garments), and of credit cards and "vinyl" audio recordings.
References
Acetate esters
Copolymers
Organochlorides
Vinyl polyme... | Polyvinyl chloride acetate | Chemistry | 75 |
44,246,644 | https://en.wikipedia.org/wiki/Henny%20van%20der%20Windt | Hendrik Johannes (Henny) van der Windt (born 22 August 1955, in Vlaardingen) is a Dutch associate professor at the Rijksuniversiteit Groningen, specialized in the relationship between sustainability and science, in particular the relationship between nature conservation and ecology and between energy technologies, loca... | Henny van der Windt | Environmental_science | 860 |
7,412,739 | https://en.wikipedia.org/wiki/Mind%20games | Mind games (also power games or head games) are actions performed for reasons of psychological one-upmanship, often employing passive–aggressive behavior to specifically demoralize or dis-empower the thinking subject, making the aggressor look superior. It also describes the unconscious games played by people engaged i... | Mind games | Biology | 743 |
34,253,455 | https://en.wikipedia.org/wiki/Peeling%20theorem | In general relativity, the peeling theorem describes the asymptotic behavior of the Weyl tensor as one goes to null infinity. Let be a null geodesic in a spacetime from a point p to null infinity, with affine parameter . Then the theorem states that, as tends to infinity:
where is the Weyl tensor, and abstract ind... | Peeling theorem | Physics,Mathematics | 117 |
30,865,488 | https://en.wikipedia.org/wiki/Complementarity%20%28molecular%20biology%29 | In molecular biology, complementarity describes a relationship between two structures each following the lock-and-key principle. In nature complementarity is the base principle of DNA replication and transcription as it is a property shared between two DNA or RNA sequences, such that when they are aligned antiparallel ... | Complementarity (molecular biology) | Chemistry,Biology | 2,517 |
44,182,173 | https://en.wikipedia.org/wiki/ST%20motif | The ST motif is a commonly occurring feature in proteins and polypeptides. It consists of four or five amino acid residues with either serine or threonine as the first residue (residue i). It is defined by two internal hydrogen bonds. One is between the side chain oxygen of residue i and the main chain NH of residue i ... | ST motif | Biology | 372 |
14,217,493 | https://en.wikipedia.org/wiki/Ribose-5-phosphate%20isomerase | Ribose-5-phosphate isomerase (Rpi) encoded by the RPIA gene is an enzyme () that catalyzes the conversion between ribose-5-phosphate (R5P) and ribulose-5-phosphate (Ru5P). It is a member of a larger class of isomerases which catalyze the interconversion of chemical isomers (in this case structural isomers of pentose). ... | Ribose-5-phosphate isomerase | Chemistry | 1,836 |
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