id int64 580 79M | url stringlengths 31 175 | text stringlengths 9 245k | source stringlengths 1 109 | categories stringclasses 160
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42,021,809 | https://en.wikipedia.org/wiki/Samsung%20Gear%202 | The Samsung Gear 2 and Samsung Gear 2 Neo are smartwatches produced by Samsung Electronics. Unveiled on February 22, 2014 at Mobile World Congress, the Gear 2 line is a successor to the Samsung Galaxy Gear.
In comparison to the Galaxy Gear, the most significant change made to the Gear 2 line was the replacement of And... | Samsung Gear 2 | Technology | 766 |
35,477,085 | https://en.wikipedia.org/wiki/Belinski%E2%80%93Zakharov%20transform | The Belinski–Zakharov (inverse) transform is a nonlinear transformation that generates new exact solutions of the vacuum Einstein's field equation. It was developed by Vladimir Belinski and Vladimir Zakharov in 1978. The Belinski–Zakharov transform is a generalization of the inverse scattering transform. The solutions ... | Belinski–Zakharov transform | Mathematics | 608 |
24,450,278 | https://en.wikipedia.org/wiki/Gerhart%20Jander | Gerhart Jander (26 October 1892 – 8 December 1961) was a German inorganic chemist. His book, now normally only called "Jander-Blasius", on analytical chemistry is still used in German universities. His involvement in the chemical weapon research and close relation to the NSDAP have been uncovered by recent research.
L... | Gerhart Jander | Chemistry | 360 |
21,630,086 | https://en.wikipedia.org/wiki/Integrated%20High%20Performance%20Turbine%20Engine%20Technology | The Integrated High Performance Turbine Engine Technology program was a project of the United States military, DARPA, and NASA. Its objective was to conduct science and technology research that would secure advancements in the engineering of the gas turbine engines used in military aircraft. It ran from 1987 until 200... | Integrated High Performance Turbine Engine Technology | Technology | 191 |
12,194,878 | https://en.wikipedia.org/wiki/C3H6O3 | {{DISPLAYTITLE:C3H6O3}}
The molecular formula C3H6O3 may refer to:
Dihydroxyacetone
Dimethyl carbonate
Glyceraldehyde
3-Hydroxypropionic acid
Lactic acid
Trioxanes
1,2,4-Trioxane
1,3,5-Trioxane | C3H6O3 | Chemistry | 77 |
34,794,178 | https://en.wikipedia.org/wiki/Derek%20Corneil | Derek Gordon Corneil is a Canadian mathematician and computer scientist, a professor emeritus of computer science at the University of Toronto, and an expert in graph algorithms and graph theory.
Life
When he was leaving high school, Corneil was told by his English teacher that doing a degree in mathematics and physic... | Derek Corneil | Mathematics | 846 |
4,525,060 | https://en.wikipedia.org/wiki/Porcine%20circovirus | Porcine circovirus (PCV) is a group of four single-stranded DNA viruses that are non-enveloped with an unsegmented circular genome. They are members of the genus Circovirus that can infect pigs. The viral capsid is icosahedral and approximately 17 nm in diameter.
PCVs are the smallest viruses replicating autonomously... | Porcine circovirus | Biology | 1,814 |
2,437,377 | https://en.wikipedia.org/wiki/Architectural%20technologist | The architectural technologist, also known as a building technologist, provides technical building design services and is trained in architectural technology, building technical design and construction.
Architectural technologists apply the science of architecture and typically concentrate on the technology of buildin... | Architectural technologist | Engineering | 1,212 |
41,038 | https://en.wikipedia.org/wiki/Digital%20subscriber%20line | Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines. In telecommunications marketing, the term DSL is widely understood to mean asymmetric digital subscriber line (ADSL), the most commonly installed DSL technology, for... | Digital subscriber line | Technology | 4,744 |
51,298,870 | https://en.wikipedia.org/wiki/Bolandiol%20dipropionate | Bolandiol dipropionate (USAN; brand names Anabiol, Storinal; former development code SC-7525; also known as bolandiol propionate (JAN), norpropandrolate, 19-nor-4-androstenediol dipropionate, or estr-4-ene-3β,17β-diol 3,17-dipropionate) is a synthetic anabolic-androgenic steroid (AAS) and derivative of 19-nortestostero... | Bolandiol dipropionate | Chemistry | 251 |
1,371,297 | https://en.wikipedia.org/wiki/Amazon%20China | Amazon China (Chinese: 亚马逊中国), formerly known as Joyo.com (Chinese: 卓越网), is an online shopping website. Joyo.com was founded in early 2000 by the Chinese entrepreneur Lei Jun in Beijing, China. The company primarily sold books and other media goods, shipping to customers nationwide. Joyo.com was renamed to “Amazon Chi... | Amazon China | Technology | 2,204 |
67,944,539 | https://en.wikipedia.org/wiki/Groundwater%20contamination%20by%20pharmaceuticals | Groundwater contamination by pharmaceuticals, which belong to the category of contaminants of emerging concern (CEC) or emerging organic pollutants (EOP), has been receiving increasing attention in the fields of environmental engineering, hydrology and hydrogeochemistry since the last decades of the twentieth century.
... | Groundwater contamination by pharmaceuticals | Chemistry,Environmental_science | 3,780 |
478,933 | https://en.wikipedia.org/wiki/Energy%20conservation | Energy conservation is the effort to reduce wasteful energy consumption by using fewer energy services. This can be done by using energy more effectively (using less and better sources of energy for continuous service) or changing one's behavior to use less and better source of service (for example, by driving vehicles... | Energy conservation | Environmental_science | 9,865 |
34,575,941 | https://en.wikipedia.org/wiki/Volume%20solid | Volume solid is the volume of paint after it has dried.
Paint
This is different than the weight solid. Paint may contain solvent, resin, pigments, and additives. Many paints do not contain any solvent. After applying the paint, the solid portion will be left on the substrate. Volume solid is the term that indicates th... | Volume solid | Physics,Materials_science,Engineering | 380 |
5,297,278 | https://en.wikipedia.org/wiki/Dowling%20geometry | In combinatorial mathematics, a Dowling geometry, named after Thomas A. Dowling, is a matroid associated with a group. There is a Dowling geometry of each rank for each group. If the rank is at least 3, the Dowling geometry uniquely determines the group. Dowling geometries have a role in matroid theory as universal obj... | Dowling geometry | Mathematics | 1,549 |
62,520,275 | https://en.wikipedia.org/wiki/IBM%20drum%20storage | In addition to the drums used as main memory by IBM, e.g., IBM 305, IBM 650, IBM offered drum devices as secondary storage for the 700/7000 series and System/360 series of computers.
IBM 731
The IBM 731 is a discontinued storage unit used on the IBM 701. It has a storage capacity of 2,048 36-bit words (9,216 8-bit by... | IBM drum storage | Technology | 824 |
1,368,015 | https://en.wikipedia.org/wiki/Collisional%20excitation | Collisional excitation is a process in which the kinetic energy of a collision partner is converted into the internal energy of a reactant species.
Astronomy
In astronomy, collisional excitation gives rise to spectral lines in the spectra of astronomical objects such as planetary nebulae and H II regions.
In these ob... | Collisional excitation | Physics,Chemistry | 446 |
41,055,311 | https://en.wikipedia.org/wiki/Lejeunea%20hodgsoniana | Lejeunea hodgsoniana is a species of liverwort in the family Lejeuneaceae. Endemic to New Zealand, it was first recognized in 1980 but not formally described until 2013. The plant forms bright green mats up to in diameter on tree bark and occasionally on rocks. The species is found from the Kermadec Islands in the nor... | Lejeunea hodgsoniana | Biology | 1,555 |
53,505,342 | https://en.wikipedia.org/wiki/Victor%20Mbarika | Victor Mbarika is an American professor from Cameroon. He is currently the Stallings International Distinguished Scholar and MIS professor at East Carolina University within the University of North Carolina System, in Greenville, North Carolina, United States. He is the President, Board of Trustees of the ICT Universi... | Victor Mbarika | Technology | 897 |
17,000,438 | https://en.wikipedia.org/wiki/Font%20embedding | Font embedding is the inclusion of font files inside an electronic document for display across different platforms. Font embedding is controversial because it allows licensed fonts to be freely distributed.
History
Font embedding has been possible with Portable Document Format (PDF), Microsoft Word for Windows and som... | Font embedding | Technology | 402 |
32,321 | https://en.wikipedia.org/wiki/Universal%20Networking%20Language | Universal Networking Language (UNL) is a declarative formal language specifically designed to represent semantic data extracted from natural language texts. It can be used as a pivot language in interlingual machine translation systems or as a knowledge representation language in information retrieval applications.
St... | Universal Networking Language | Technology | 735 |
27,310,834 | https://en.wikipedia.org/wiki/Shear%20wave%20splitting | Shear wave splitting, also called seismic birefringence, is the phenomenon that occurs when a polarized shear wave enters an anisotropic medium (Fig. 1). The incident shear wave splits into two polarized shear waves (Fig. 2). Shear wave splitting is typically used as a tool for testing the anisotropy of an area of in... | Shear wave splitting | Physics | 4,034 |
16,020,896 | https://en.wikipedia.org/wiki/HD%2029697 | HD 29697 (Gliese 174, V834 Tauri) is a variable star of BY Draconis type in the constellation Taurus. It has an apparent magnitude around 8 and is approximately 43 ly away.
Description
HD 29697 is the Henry Draper Catalogue number of this star. It is also known by its designation in the Gliese Catalogue of Nearby Sta... | HD 29697 | Astronomy | 210 |
28,120,225 | https://en.wikipedia.org/wiki/University%20of%20Minnesota%20Supercomputing%20Institute | The Minnesota Supercomputing Institute (MSI) in Minneapolis, Minnesota is a core research facility of the University of Minnesota that provides hardware and software resources, as well as technical user support, to faculty and researchers at the university and at other institutions of higher education in Minnesota. MSI... | University of Minnesota Supercomputing Institute | Technology | 420 |
32,086,877 | https://en.wikipedia.org/wiki/Novel%20ecosystem | Novel ecosystems are human-built, modified, or engineered niches of the Anthropocene. They exist in places that have been altered in structure and function by human agency. Novel ecosystems are part of the human environment and niche (including urban, suburban, and rural), they lack natural analogs, and they have exten... | Novel ecosystem | Biology,Environmental_science | 1,263 |
7,272,384 | https://en.wikipedia.org/wiki/Neocallimastigomycota | Neocallimastigomycota is a phylum containing anaerobic fungi, which are symbionts found in the digestive tracts of larger herbivores. Anaerobic fungi were originally placed within phylum Chytridiomycota, within Order Neocallimastigales but later raised to phylum level, a decision upheld by later phylogenetic reconstru... | Neocallimastigomycota | Biology | 860 |
60,806,961 | https://en.wikipedia.org/wiki/ThinkBook | ThinkBook is a line of business-oriented laptop computers and tablets designed, developed and marketed by Lenovo aimed at small businesses.
The ThinkBook line is marketed towards small business users and gets the same market position as Lenovo's ThinkPad E series. The ThinkBook does not have a TrackPoint, physical tou... | ThinkBook | Technology | 258 |
66,662,738 | https://en.wikipedia.org/wiki/Gloeophyllum%20protractum | Gloeophyllum protractum is a species of fungus belonging to the family Gloeophyllaceae.
It is native to Eurasia and Northern America.
References
Gloeophyllales
Fungus species | Gloeophyllum protractum | Biology | 44 |
545,904 | https://en.wikipedia.org/wiki/Alnilam | Alnilam is the central star of Orion's Belt in the equatorial constellation of Orion. It has the Bayer designation ε Orionis, which is Latinised to Epsilon Orionis and abbreviated Epsilon Ori or ε Ori. This is a massive, blue supergiant star some 1,200 light-years distant. It is estimated to be 419,600 times as luminou... | Alnilam | Astronomy | 1,072 |
17,280,954 | https://en.wikipedia.org/wiki/Lyons%20Ferry%20State%20Park | Lyons Ferry State Park is a public recreation area located near the confluence of the Snake and Palouse rivers, northwest of Starbuck, Washington. The state park is on Route 261, abreast of Lake Herbert G. West, a reservoir on the Snake River created with the construction in the 1960s of the Lower Monumental Dam some ... | Lyons Ferry State Park | Engineering | 269 |
54,247,342 | https://en.wikipedia.org/wiki/Zeldovich%20mechanism | Zel'dovich mechanism is a chemical mechanism that describes the oxidation of nitrogen and NOx formation, first proposed by the Russian physicist Yakov Borisovich Zel'dovich in 1946. The reaction mechanisms read as
{N2} + O <->[k_1] {NO} + {N}
{N} + O2 <->[k_2] {NO} + {O}
where and are the reaction rate constants in... | Zeldovich mechanism | Chemistry | 355 |
49,031,124 | https://en.wikipedia.org/wiki/Nitrokey | Nitrokey is an open-source USB key used to enable the secure encryption and signing of data. The secret keys are always stored inside the Nitrokey which protects against malware (such as computer viruses) and attackers. A user-chosen PIN and a tamper-proof smart card protect the Nitrokey in case of loss and theft. The ... | Nitrokey | Engineering | 968 |
19,465,059 | https://en.wikipedia.org/wiki/Potassium%20dideuterium%20phosphate | Deuterated potassium dihydrogen phosphate (KDPO or KHPO) or DKDP single crystals are widely used in non-linear optics as the second, third and fourth harmonic generators for Nd:YAG and Nd:YLF lasers. They are also found in electro-optical applications as Q-switches for Nd:YAG, Nd:YLF, alexandrite and Ti-sapphire lasers... | Potassium dideuterium phosphate | Chemistry | 330 |
37,025,907 | https://en.wikipedia.org/wiki/Zeta%20Eridani | Zeta Eridani (ζ Eridani, abbreviated Zeta Eri, ζ Eri) is a binary star in the constellation of Eridanus. With an apparent visual magnitude of 4.80, it is visible to the naked eye on a clear dark night. Based on parallax measurements taken during the Hipparcos mission, it is approximately 110 light-years from the Sun.
... | Zeta Eridani | Astronomy | 694 |
2,887,653 | https://en.wikipedia.org/wiki/Treadle | A treadle (from , "to tread") is a foot-powered lever mechanism; it is operated by treading on it repeatedly. A treadle, unlike some other types of pedals, is not directly mounted on the crank (see treadle bicycle for a clear example).
Most treadle machines convert reciprocating motion into rotating motion, using a me... | Treadle | Physics,Engineering | 487 |
27,557,070 | https://en.wikipedia.org/wiki/Mountain%20Pass%20Rare%20Earth%20Mine | The Mountain Pass Rare Earth Mine and Processing Facility, owned by MP Materials, is an open-pit mine of rare-earth elements on the south flank of the Clark Mountain Range in California, southwest of Las Vegas, Nevada. In 2020 the mine supplied 15.8% of the world's rare-earth production. It is the only rare-earth mini... | Mountain Pass Rare Earth Mine | Chemistry,Materials_science | 1,868 |
70,463,845 | https://en.wikipedia.org/wiki/Huawei%20Nova%208 | Huawei Nova 8 is a smartphone manufactured by Huawei. It is a part of Huawei Nova series. It was announced on August 5, 2021.
References
Nova 8
Mobile phones introduced in 2021
Mobile phones with multiple rear cameras
Mobile phones with 4K video recording | Huawei Nova 8 | Technology | 54 |
45,486,934 | https://en.wikipedia.org/wiki/Productive%20matrix | In linear algebra, a square nonnegative matrix of order is said to be productive, or to be a Leontief matrix, if there exists a nonnegative column matrix such as is a positive matrix.
History
The concept of productive matrix was developed by the economist Wassily Leontief (Nobel Prize in Economics in 1973) in o... | Productive matrix | Mathematics | 558 |
55,012,592 | https://en.wikipedia.org/wiki/Christian%20Hamel | Christian Hamel (4 October 1955 – 15 August 2017) was a French Professor at the Institute for Neurosciences of Montpellier, Hôpital Saint Eloi (INM) research unit INSERM 583 of the University. He studied transduction, integration and disorders of sensory and motor systems with the ultimate goal of finding treatments fo... | Christian Hamel | Chemistry,Engineering,Biology | 182 |
75,551,391 | https://en.wikipedia.org/wiki/Tylvalosin | Tylvalosin, sold under the brand name Aivlosin, is a macrolide antibiotic used for the treatment of bacterial infections with Mycoplasma hyopneumoniae in swine, that causes enzootic pneumonia. It is used as tylvalosin tartrate.
Mechanism of Action
Macrolides are generally considered to be bacteriostatic agents that e... | Tylvalosin | Chemistry | 309 |
48,060,564 | https://en.wikipedia.org/wiki/Evgenii%20Nikishin | Evgenii Mikhailovich Nikishin (Евгений Михайлович Никишин; 23 June 1945, in Penza Oblast – 17 December 1986) was a Russian mathematician, who specialized in harmonic analysis.
Biography
Nikishin, at age of 24, earned his candidate doctorate at Moscow State University, becoming the youngest Candidate Doctorate in a his... | Evgenii Nikishin | Mathematics | 350 |
32,848,664 | https://en.wikipedia.org/wiki/Big%20q-Laguerre%20polynomials | In mathematics, the big q-Laguerre polynomials are a family of basic hypergeometric orthogonal polynomials in the basic Askey scheme. give a detailed list of their properties.
Definition
The polynomials are given in terms of basic hypergeometric functions and the q-Pochhammer symbol by
Relation to other polynomia... | Big q-Laguerre polynomials | Mathematics | 88 |
48,279,605 | https://en.wikipedia.org/wiki/Lentinus%20megacystidiatus | Lentinus megacystidiatus is a species of edible mushroom in the family Polyporaceae, first found in northern Thailand.
References
Further reading
Senthilarasu, Gunasekaran. "the lentinoid fungi (Lentinus and Panus) from Western ghats, India." (2015).
Quél, C. E. R. I. O. P. O. R. U. S. "Zmitrovich IV, Kovalenko AE Le... | Lentinus megacystidiatus | Biology | 229 |
5,729,336 | https://en.wikipedia.org/wiki/Countershading | Countershading, or Thayer's law, is a method of camouflage in which an animal's coloration is darker on the top or upper side and lighter on the underside of the body. This pattern is found in many species of mammals, reptiles, birds, fish, and insects, both in predators and in prey.
When light falls from above on a ... | Countershading | Biology | 3,437 |
11,331,197 | https://en.wikipedia.org/wiki/Dermea%20pseudotsugae | Dermea pseudotsugae is a plant pathogen.
References
External links
Index Fungorum
USDA ARS Fungal Database
Fungal plant pathogens and diseases
Dermateaceae
Fungus species | Dermea pseudotsugae | Biology | 37 |
265,044 | https://en.wikipedia.org/wiki/Propellant | A propellant (or propellent) is a mass that is expelled or expanded in such a way as to create a thrust or another motive force in accordance with Newton's third law of motion, and "propel" a vehicle, projectile, or fluid payload. In vehicles, the engine that expels the propellant is called a reaction engine. Although ... | Propellant | Physics,Chemistry | 4,656 |
38,731,429 | https://en.wikipedia.org/wiki/Snub%20order-6%20square%20tiling | In geometry, the snub order-6 square tiling is a uniform tiling of the hyperbolic plane. It has Schläfli symbol of s{(4,4,3)} or s{4,6}.
Images
Symmetry
The symmetry is doubled as a snub order-6 square tiling, with only one color of square. It has Schläfli symbol of s{4,6}.
Related polyhedra and tiling
The vertex f... | Snub order-6 square tiling | Physics | 261 |
25,335,695 | https://en.wikipedia.org/wiki/Perceptual%20learning | Perceptual learning is learning better perception skills such as differentiating two musical tones from one another or categorizations of spatial and temporal patterns relevant to real-world expertise. Examples of this may include reading, seeing relations among chess pieces, and knowing whether or not an X-ray image s... | Perceptual learning | Biology | 5,941 |
18,084,359 | https://en.wikipedia.org/wiki/Bell%20nipple | A Bell nipple is a section of large diameter pipe fitted to the top of the blowout preventers that the flow line attaches to via a side outlet, to allow the drilling fluid to flow back over the shale shakers to the mud tanks.
See Drilling rig (petroleum) for a diagram.
Oilfield terminology
Drilling technology
Petrole... | Bell nipple | Chemistry,Engineering | 69 |
4,417,192 | https://en.wikipedia.org/wiki/Hemopoietic%20growth%20factor | Hemopoietic growth factors regulate the differentiation and proliferation of particular progenitor cells. Made available through recombinant DNA technology, they hold tremendous potential for medical uses when a person's natural ability to form blood cells is diminished or defective. Recombinant erythropoietin (EPO) i... | Hemopoietic growth factor | Chemistry | 790 |
6,833,771 | https://en.wikipedia.org/wiki/Cilazapril | Cilazapril is an angiotensin-converting enzyme inhibitor (ACE inhibitor) used for the treatment of hypertension and congestive heart failure.
It was patented in 1982 and approved for medical use in 1990.
Chemistry
Of the eight possible stereoisomers, only the all-(S)-form is medically viable.
Brand names
It is bran... | Cilazapril | Chemistry | 164 |
77,195,423 | https://en.wikipedia.org/wiki/Federal%20Office%20for%20the%20Safety%20of%20Nuclear%20Waste%20Management | The Federal Office for the Safety of Nuclear Waste Management (BASE) is a legally established, independent German federal authority under the jurisdiction of the Federal Ministry for the Environment, Nature Conservation, Nuclear Safety and Consumer Protection (BMUV). It began its activities on 1 September 2014. Its pro... | Federal Office for the Safety of Nuclear Waste Management | Chemistry,Technology | 1,415 |
32,555,796 | https://en.wikipedia.org/wiki/COPASI | COPASI (COmplex PAthway SImulator) is an open-source software application for creating and solving mathematical models of biological processes such as metabolic networks, cell-signaling pathways, regulatory networks, infectious diseases, and many others.
History
COPASI is based on the Gepasi simulation software that ... | COPASI | Biology | 436 |
32,693,708 | https://en.wikipedia.org/wiki/Communications-based%20train%20control | Communications-based train control (CBTC) is a railway signaling system that uses telecommunications between the train and track equipment for traffic management and infrastructure control. CBTC allows a train's position to be known more accurately than with traditional signaling systems. This can make railway traffic ... | Communications-based train control | Technology | 3,773 |
77,608,074 | https://en.wikipedia.org/wiki/Chaulmoogric%20acid | Chaulmoogric acid is a fatty acid found chaulmoogra oil, the oil from the seeds of Hydnocarpus wightianus. It is an unusual fatty acid which has a cyclopentene ring at its terminus instead of being entirely linear like most fatty acids.
It is a white crystalline solid with a melting point of 68.5 °C. It is soluble i... | Chaulmoogric acid | Chemistry | 149 |
70,978,956 | https://en.wikipedia.org/wiki/Pi1%20Octantis | {{DISPLAYTITLE:Pi1 Octantis}}
Pi1 Octantis (Pi1 Oct), Latinized π1 Octantis, is a solitary star in the southern circumpolar constellation Octans. It is faintly visible to the naked eye with an apparent magnitude 5.64, and is estimated to be 387 light years away. However, it is receding with a heliocentric radial veloc... | Pi1 Octantis | Astronomy | 206 |
13,864,129 | https://en.wikipedia.org/wiki/Cowdry%20bodies | Cowdry bodies are eosinophilic or basophilic nuclear inclusions composed of nucleic acid and protein seen in cells infected with Herpes simplex virus, Varicella-zoster virus, and Cytomegalovirus. They are named after Edmund Cowdry.
There are two types of intranuclear Cowdry bodies:
Type A (as seen in herpes simplex ... | Cowdry bodies | Chemistry,Biology | 139 |
1,850,051 | https://en.wikipedia.org/wiki/Minefield%20%28Star%20Trek%3A%20Enterprise%29 | "Minefield" is the twenty-ninth episode (production #203) of the science fiction television series Star Trek: Enterprise, the third episode of the second season. In this episode, which aired in October 2002, the spaceship the Enterprise is rocked by an explosion, and the crew tries to deal with the situation.
Plot
Cap... | Minefield (Star Trek: Enterprise) | Engineering | 1,511 |
1,858,612 | https://en.wikipedia.org/wiki/Critical%20micelle%20concentration | In colloidal and surface chemistry, the critical micelle concentration (CMC) is defined as the concentration of surfactants above which micelles form and all additional surfactants added to the system will form micelles.
The CMC is an important characteristic of a surfactant. Before reaching the CMC, the surface tensi... | Critical micelle concentration | Chemistry | 1,222 |
24,044,309 | https://en.wikipedia.org/wiki/Sleep%20induction | Sleep induction is the deliberate effort to bring on sleep by various techniques or medicinal means, is practiced to lengthen periods of sleep, increase the effectiveness of sleep, and to reduce or prevent insomnia.
Darkness and quiet
Dim or dark surroundings with a peaceful, quiet sound level are conducive to sleep.... | Sleep induction | Biology | 963 |
38,616,928 | https://en.wikipedia.org/wiki/Kellogg%27s%20theorem | Kellogg's theorem is a pair of related results in the mathematical study of the regularity of harmonic functions on sufficiently smooth domains by Oliver Dimon Kellogg.
In the first version, it states that, for , if the domain's boundary is of class and the k-th derivatives of the boundary are Dini continuous, then t... | Kellogg's theorem | Mathematics | 174 |
25,084,036 | https://en.wikipedia.org/wiki/USB%20image | A USB image — is bootable image of Operating system (OS) or other software where the boot loader is located on a USB flash drive, or another USB device (with memory storage) instead of conventional CD or DVD discs. The operating system loads from the USB device either to load it much like a Live CD that runs OS or any ... | USB image | Technology | 546 |
2,811,312 | https://en.wikipedia.org/wiki/China%20Compulsory%20Certificate | The China Compulsory Certificate mark, commonly known as a CCC Mark, is a compulsory safety mark for many products imported, sold or used in the Chinese market. It was implemented on May 1, 2002, and became fully effective on August 1, 2003.
It is the result of the integration of China's two previous compulsory inspec... | China Compulsory Certificate | Mathematics | 1,030 |
1,968,690 | https://en.wikipedia.org/wiki/Wide%20Angle%20Search%20for%20Planets | WASP or Wide Angle Search for Planets is an international consortium of several academic organisations performing an ultra-wide angle search for exoplanets using transit photometry. The array of robotic telescopes aims to survey the entire sky, simultaneously monitoring many thousands of stars at an apparent visual mag... | Wide Angle Search for Planets | Astronomy | 1,046 |
31,928,335 | https://en.wikipedia.org/wiki/Crocco%27s%20theorem | Crocco's theorem is an aerodynamic theorem relating the flow velocity, vorticity, and stagnation pressure (or entropy) of a potential flow. Crocco's theorem gives the relation between the thermodynamics and fluid kinematics. The theorem was first enunciated by Alexander Friedmann for the particular case of a perfect ga... | Crocco's theorem | Chemistry,Engineering | 266 |
19,920,940 | https://en.wikipedia.org/wiki/RW%20Cephei | RW Cephei is a K-type hypergiant and a semirregular variable star in the constellation Cepheus, at the edge of the Sharpless 132 H II region and close to the small open cluster Berkeley 94. It is among the largest stars known with a radius of 1,100 times that of the Sun (), nearly as large as the orbit of Jupiter.
In ... | RW Cephei | Astronomy | 1,978 |
15,072,571 | https://en.wikipedia.org/wiki/MRPS7 | 28S ribosomal protein S7, mitochondrial is a protein that in humans is encoded by the MRPS7 gene.
Mammalian mitochondrial ribosomal proteins are encoded by nuclear genes and help in protein synthesis within the mitochondrion. Mitochondrial ribosomes (mitoribosomes) consist of a small 28S subunit and a large 39S subuni... | MRPS7 | Chemistry | 238 |
6,327,216 | https://en.wikipedia.org/wiki/Pocosin | Pocosin is a type of palustrine wetland with deep, acidic, sandy, peat soils. Groundwater saturates the soil except during brief seasonal dry spells and during prolonged droughts. Pocosin soils are nutrient-deficient (oligotrophic), especially in phosphorus.
Pocosins occur in the southern portions of the Atlantic coas... | Pocosin | Biology | 820 |
62,068,304 | https://en.wikipedia.org/wiki/Kathryn%20Beers | Kathryn L. Beers is an American polymer chemist. Beers is Leader of the Polymers and Complex Fluids group in the Materials Science and Engineering Division at the National Institute of Standards and Technology. Her research interests include microreactors and microfluidics, advances in polymer synthesis and reaction mo... | Kathryn Beers | Materials_science,Technology | 696 |
953,903 | https://en.wikipedia.org/wiki/Chainik | Chainik (East Slavic: чайник, "teakettle", "teapot") is a term that implies both ignorance and a certain amount of willingness to learn (as well as a propensity to cause disaster), but does not necessarily imply as little experience or short exposure time as newbie and is not as derogatory as luser. Both a novice user... | Chainik | Technology | 375 |
65,220,528 | https://en.wikipedia.org/wiki/Transcription-translation%20coupling | Transcription-translation coupling is a mechanism of gene expression regulation in which synthesis of an mRNA (transcription) is affected by its concurrent decoding (translation). In prokaryotes, mRNAs are translated while they are transcribed. This allows communication between RNA polymerase, the multisubunit enzyme t... | Transcription-translation coupling | Chemistry,Biology | 1,656 |
2,182,059 | https://en.wikipedia.org/wiki/Z%C3%B6llner%20illusion | The Zöllner illusion is an optical illusion named after its discoverer, German astrophysicist Johann Karl Friedrich Zöllner. In 1860, Zöllner sent his discovery in a letter to physicist and scholar Johann Christian Poggendorff, editor of Annalen der Physik und Chemie, who subsequently discovered the related Poggendorff... | Zöllner illusion | Physics | 265 |
24,472,842 | https://en.wikipedia.org/wiki/Mycena%20sanguinolenta | Mycena sanguinolenta, commonly known as the bleeding bonnet, the smaller bleeding Mycena, or the terrestrial bleeding Mycena, is a species of mushroom in the family Mycenaceae. It is a common and widely distributed species, and has been found in North America, Europe, Australia, and Asia. The fungus produces reddish-br... | Mycena sanguinolenta | Biology | 1,506 |
11,821,770 | https://en.wikipedia.org/wiki/Signature-tagged%20mutagenesis | Signature-tagged mutagenesis (STM) is a genetic technique used to study gene function. Recent advances in genome sequencing have allowed us to catalogue a large variety of organisms' genomes, but the function of the genes they contain is still largely unknown. Using STM, the function of the product of a particular gene... | Signature-tagged mutagenesis | Biology | 408 |
222,390 | https://en.wikipedia.org/wiki/Table%20of%20prime%20factors | The tables contain the prime factorization of the natural numbers from 1 to 1000.
When n is a prime number, the prime factorization is just n itself, written in bold below.
The number 1 is called a unit. It has no prime factors and is neither prime nor composite.
Properties
Many properties of a natural number n can... | Table of prime factors | Mathematics | 1,883 |
17,956,189 | https://en.wikipedia.org/wiki/Foreign%20Reports | Foreign Reports Inc. is a Washington, D.C.–based consulting firm for the oil industry, founded in 1956. Foreign Reports advises energy companies, governments, and financial institutions on world energy issues, with a specialization on the Middle East. The president of the firm is Nathaniel Kern.
Overview
Foreign Repo... | Foreign Reports | Chemistry | 2,288 |
53,621,281 | https://en.wikipedia.org/wiki/Artificial%20cerebrospinal%20fluid | Artificial cerebrospinal fluid (aCSF) is a buffer solution prepared with a composition representative of cerebrospinal fluid that is used experimentally to immerse isolated brains, brain slices, or exposed brain regions to supply oxygen, maintain osmolarity, and to buffer pH at biological levels. ACSF is commonly used ... | Artificial cerebrospinal fluid | Chemistry | 181 |
11,436,434 | https://en.wikipedia.org/wiki/Cercospora%20brachypus | Cercospora brachypus is a fungal plant pathogen.
References
brachypus
Fungal plant pathogens and diseases
Taxa named by Benjamin Matlack Everhart
Fungi described in 1902
Fungus species | Cercospora brachypus | Biology | 40 |
34,121,965 | https://en.wikipedia.org/wiki/Freudenthal%20spectral%20theorem | In mathematics, the Freudenthal spectral theorem is a result in Riesz space theory proved by Hans Freudenthal in 1936. It roughly states that any element dominated by a positive element in a Riesz space with the principal projection property can in a sense be approximated uniformly by simple functions.
Numerous well... | Freudenthal spectral theorem | Mathematics | 435 |
13,118,658 | https://en.wikipedia.org/wiki/Farmland%20preservation | Farmland preservation is a joint effort by non-governmental organizations and local governments to set aside and protect examples of a region's farmland for the use, education, and enjoyment of future generations. They are operated mostly at state and local levels by government agencies or private entities such as land... | Farmland preservation | Engineering,Environmental_science | 2,103 |
97,315 | https://en.wikipedia.org/wiki/Heh%20%28god%29 | Ḥeḥ (ḥḥ, also Huh, Hah, Hauh, Huah, and Hehu) was the personification of infinity or eternity in the Ogdoad in ancient Egyptian religion. His name originally meant "flood", referring to the watery chaos Nu that the Egyptians believed existed before the creation of the world. The Egyptians envisioned this chaos as infin... | Heh (god) | Mathematics | 903 |
444,763 | https://en.wikipedia.org/wiki/300%20%28number%29 | 300 (three hundred) is the natural number following 299 and preceding 301.
In Mathematics
300 is a composite number and the 24th triangular number.
Integers from 301 to 399
300s
301
302
303
304
305
306
307
308
309
310s
310
311
312
313
314
315
315 = 32 × 5 × 7 = , rencontres number, highly composit... | 300 (number) | Mathematics | 3,406 |
1,228,836 | https://en.wikipedia.org/wiki/Cleanser | The term cleanser refers to a product that cleans or removes dirt or other substances. A cleanser could be a detergent, and there are many types of cleansers that are produced with a specific objective or focus. For instance, a degreaser or carburetor cleanser used in automotive mechanics for cleaning certain engine an... | Cleanser | Chemistry | 1,196 |
16,096,622 | https://en.wikipedia.org/wiki/Aluminium-26 | Aluminium-26 (26Al, Al-26) is a radioactive isotope of the chemical element aluminium, decaying by either positron emission or electron capture to stable magnesium-26. The half-life of 26Al is 717,000 years. This is far too short for the isotope to survive as a primordial nuclide, but a small amount of it is produced b... | Aluminium-26 | Chemistry | 1,848 |
70,333,497 | https://en.wikipedia.org/wiki/Brisavirus | Brisavirus (isolate LC KY052047) is a species of Redondoviridae in the genus Torbevirus. Brisa- is from the Spanish word for "Breeze", which refers to their isolation from the human respiratory tract. It was discovered in a throat swab in a male traveler who presented with fever, enlarged adenoids, flushed skin and mya... | Brisavirus | Biology | 223 |
26,874,357 | https://en.wikipedia.org/wiki/Nimrod%20Megiddo | Nimrod Megiddo () is a mathematician and computer scientist. He is a research scientist at the IBM Almaden Research Center and Stanford University. His interests include combinatorial optimization, algorithm design and analysis, game theory, and machine learning. He was one of the first people to propose a solution to ... | Nimrod Megiddo | Mathematics | 302 |
52,188,910 | https://en.wikipedia.org/wiki/Mannequin%20Challenge | The Mannequin Challenge is a viral Internet video trend which became popular in November 2016. In this challenge, participants have to stay still in action like a mannequin while a moving camera films them, often with the song "Black Beatles" by Rae Sremmurd playing in the background. The hashtag #MannequinChallenge wa... | Mannequin Challenge | Physics | 1,866 |
50,718,121 | https://en.wikipedia.org/wiki/Robert%20N.%20Clayton | Robert Norman Clayton (March 20, 1930 – December 30, 2017) was a Canadian-American chemist and academic. He was the Enrico Fermi Distinguished Service Professor Emeritus of Chemistry at the University of Chicago. Clayton studied cosmochemistry and held a joint appointment in the university's geophysical sciences depar... | Robert N. Clayton | Chemistry | 865 |
8,054,686 | https://en.wikipedia.org/wiki/Printed%20electronics | Printed electronics is a set of printing methods used to create electrical devices on various substrates. Printing typically uses common printing equipment suitable for defining patterns on material, such as screen printing, flexography, gravure, offset lithography, and inkjet. By electronic-industry standards, these a... | Printed electronics | Engineering | 4,600 |
2,739,214 | https://en.wikipedia.org/wiki/Balance%20spring | A balance spring, or hairspring, is a spring attached to the balance wheel in mechanical timepieces. It causes the balance wheel to oscillate with a resonant frequency when the timepiece is running, which controls the speed at which the wheels of the timepiece turn, thus the rate of movement of the hands. A regulator ... | Balance spring | Technology | 2,659 |
19,989,020 | https://en.wikipedia.org/wiki/Xanthine%20oxidase%20inhibitor | A xanthine oxidase inhibitor is any substance that inhibits the activity of xanthine oxidase, an enzyme involved in purine metabolism. In humans, inhibition of xanthine oxidase reduces the production of uric acid, and several medications that inhibit xanthine oxidase are indicated for treatment of hyperuricemia and re... | Xanthine oxidase inhibitor | Biology | 413 |
11,127,922 | https://en.wikipedia.org/wiki/Lasiodiplodia%20theobromae | Lasiodiplodia theobromae is a plant pathogen with a very wide host range. It causes rotting and dieback in most species it infects. It is a common post harvest fungus disease of citrus known as stem-end rot. It is a cause of bot canker of grapevine. It also infects Biancaea sappan, a species of flowering tree also know... | Lasiodiplodia theobromae | Biology | 666 |
28,732,614 | https://en.wikipedia.org/wiki/SpaceUp | SpaceUp is an open-attendance space exploration unconference, where participants decide the topics, schedule, and structure of the event. SpaceUps have been held on both West and East coasts, and in Houston. Common features of SpaceUps are an unconference/barcamp style schedule, Ignite talks, and a moonpie eating conte... | SpaceUp | Astronomy | 576 |
2,881,125 | https://en.wikipedia.org/wiki/Chronosophy | Chronosophy is the neologistic designation given by scholar Julius Thomas (J.T.) Fraser to "the interdisciplinary and normative study of time sui generis."
Overview
Etymology
Fraser derived the term from the Ancient Greek: χρόνος, chronos, "time" and σοφία, sophia, "wisdom". Chronosophia is thus defined as the "spec... | Chronosophy | Physics,Mathematics | 1,706 |
41,672,569 | https://en.wikipedia.org/wiki/Alentemol | Alentemol (INN) (developmental code name U-66444B), or alentamol, is a selective dopamine autoreceptor agonist described as an antipsychotic, which was never marketed.
References
Antipsychotics
Dopamine agonists
Abandoned drugs | Alentemol | Chemistry | 66 |
8,676,520 | https://en.wikipedia.org/wiki/Polymethine | Polymethines are compounds made up from an odd number of methine groups (CH) bound together by alternating single and double bonds. Compounds made up from an even number of methine groups are known as polyenes.
Polymethine dyes
Cyanines are synthetic dyes belonging to polymethine group. Anthocyanidins are natural pl... | Polymethine | Chemistry | 128 |
2,680,508 | https://en.wikipedia.org/wiki/Carminati%E2%80%93McLenaghan%20invariants | In general relativity, the Carminati–McLenaghan invariants or CM scalars are a set of 16 scalar curvature invariants for the Riemann tensor. This set is usually supplemented with at least two additional invariants.
Mathematical definition
The CM invariants consist of 6 real scalars plus 5 complex scalars, making a t... | Carminati–McLenaghan invariants | Physics,Engineering | 405 |
11,512,357 | https://en.wikipedia.org/wiki/Phyllactinia%20angulata | Phyllactinia angulata is a plant pathogen infecting chestnut, beech, oak and elm trees in North America with powdery mildew. Collections on elm were segregated into a new variety, Phyllactinia angulata var. ulmi.
Reports of this species infecting pistachio are probably instead referrable to Phyllactinia pistaciae, des... | Phyllactinia angulata | Biology | 106 |
77,859,236 | https://en.wikipedia.org/wiki/French%20Zoosemiotics%20Society | French Zoosemiotics Society () is an academic society, uniting ethologists, zoologists, semioticians (including biosemioticians and ecosemioticians), linguists, veterinarians and philosophers, and promoting a semiotic approach in zoosemiotics and animal studies.
The focus of the society is to promote and facilitate re... | French Zoosemiotics Society | Biology | 195 |
3,684,625 | https://en.wikipedia.org/wiki/History%20of%20architecture | The history of architecture traces the changes in architecture through various traditions, regions, overarching stylistic trends, and dates. The beginnings of all these traditions is thought to be humans satisfying the very basic need of shelter and protection. The term "architecture" generally refers to buildings, but... | History of architecture | Engineering | 17,473 |
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