id int64 580 79M | url stringlengths 31 175 | text stringlengths 9 245k | source stringlengths 1 109 | categories stringclasses 160
values | token_count int64 3 51.8k |
|---|---|---|---|---|---|
16,040,681 | https://en.wikipedia.org/wiki/Ronald%20D.%20Macfarlane | Ronald D. Macfarlane (born February 21, 1933, Buffalo, New York) is distinguished professor of Chemistry at Texas A&M University. In 1991, he received the Inaugural Award of the American Society for Mass Spectrometry's Distinguished Achievement Award.
Early life and education
1954 University at Buffalo, New York - B... | Ronald D. Macfarlane | Physics,Chemistry | 179 |
45,959 | https://en.wikipedia.org/wiki/Nuclear%20strategy | Nuclear strategy involves the development of doctrines and strategies for the production and use of nuclear weapons.
As a sub-branch of military strategy, nuclear strategy attempts to match nuclear weapons as means to political ends. In addition to the actual use of nuclear weapons whether in the battlefield or strate... | Nuclear strategy | Chemistry | 1,250 |
29,767,475 | https://en.wikipedia.org/wiki/Flat%20lens | A flat lens is a lens whose flat shape allows it to provide distortion-free imaging, potentially with arbitrarily-large apertures. The term is also used to refer to other lenses that provide a negative index of refraction. Flat lenses require a refractive index close to −1 over a broad angular range. In recent years, f... | Flat lens | Materials_science,Engineering | 1,707 |
1,226,822 | https://en.wikipedia.org/wiki/Transforming%20growth%20factor | Transforming growth factor (, or TGF) is used to describe two classes of polypeptide growth factors, TGFα and TGFβ.
The name "Transforming Growth Factor" is somewhat arbitrary, since the two classes of TGFs are not structurally or genetically related to one another, and they act through different receptor mechanisms. ... | Transforming growth factor | Chemistry,Biology | 374 |
407,398 | https://en.wikipedia.org/wiki/1001%20%28number%29 | 1001 is the natural number following 1000 and preceding 1002.
In mathematics
One thousand and one is a sphenic number, a pentagonal number, a pentatope number and the first four-digit palindromic number. Scheherazade numbers always have 1001 as a factor.
Divisibility by 7, 11 and 13
Two properties of 1001 are the ba... | 1001 (number) | Mathematics | 843 |
51,919,619 | https://en.wikipedia.org/wiki/Elias%202-27 | Elias 2-27 (2MASS J16264502-2423077) is a YSO star with a protoplanetary disk around it, located in the Ophiuchus Molecular Cloud (ρ Oph Cld, 5 Oph Cld, Ophiuchus Dark Cloud), a star-forming region in the Ophiuchus constellation, some away. This star system became the first ever observed with density waves in the disk... | Elias 2-27 | Astronomy | 269 |
72,114,025 | https://en.wikipedia.org/wiki/Cl6b | Cl6b (μ-THTX-Cl6b) is a peptide toxin from the venom of the spider Cyriopagopus longipes. It acts as a sodium channel blocker: Cl6b significantly and persistently reduces currents through the tetrodotoxin-sensitive sodium channels NaV1.2-1.4, NaV1.6, and NaV1.7.
Structure
The Cl6b peptide has a molecular weight of 37... | Cl6b | Chemistry | 531 |
49,978,676 | https://en.wikipedia.org/wiki/A-1%20holin%20family | The Actinobacterial 1 TMS Holin (A-1 Holin) Family (TC# 1.E.32) consists of proteins found in actinobacteria, their conjugative plasmids and their phage. They are usually between 90 and 140 amino acyl residues (aas) in length and exhibit 1 or sometimes even 2 transmembrane segments despite the families name (i.e., TC# ... | A-1 holin family | Biology | 198 |
26,869,391 | https://en.wikipedia.org/wiki/2MASS%20J0441%2B2301 | 2MASS J0441+2301 (abbreviated as 2M 0441+23) is a young quadruple system hosting a planetary-mass object, a red dwarf star and two brown dwarfs, approximately 470 light years (145 parsecs) away.
The 2MASS J04414489+2301513 Bab (abbreviated as 2M J044144) primary (a brown dwarf) has a large separation (12.4 arcseconds)... | 2MASS J0441+2301 | Astronomy | 502 |
36,344,470 | https://en.wikipedia.org/wiki/Centre%20for%20Marine%20Living%20Resources%20%26%20Ecology | The Centre for Marine Living Resources & Ecology (CMLRE) is a research institute in Kochi, Kerala under the Ministry of Earth Sciences, Government of India with a mandate to study the marine living resources. Today, apart from implementing various research projects of the ministry, the institute also manages and opera... | Centre for Marine Living Resources & Ecology | Biology | 928 |
2,526,916 | https://en.wikipedia.org/wiki/Isotopes%20of%20thulium | Naturally occurring thulium (69Tm) is composed of one stable isotope, 169Tm (100% natural abundance). Thirty-nine radioisotopes have been characterized, with the most stable being 171Tm with a half-life of 1.92 years, 170Tm with a half-life of 128.6 days, 168Tm with a half-life of 93.1 days, and 167Tm with a half-life ... | Isotopes of thulium | Chemistry | 6,748 |
11,271,178 | https://en.wikipedia.org/wiki/Transient%20state | In systems theory, a system is said to be transient or in a transient state when a process variable or variables have been changed and the system has not yet reached a steady state. In electrical engineering, the time taken for an electronic circuit to change from one steady state to another steady state is called the ... | Transient state | Chemistry,Mathematics,Engineering | 305 |
52,431,501 | https://en.wikipedia.org/wiki/NGC%20376 | NGC 376 is a young open cluster of stars in the southern constellation of Tucana. It was discovered on September 2, 1826, by Scottish astronomer James Dunlop. Dreyer, a Danish/British astronomer, described it as a "globular cluster, bright, small, round." It is irregular in form, with a central spike.
The cluster is l... | NGC 376 | Astronomy | 195 |
63,711,571 | https://en.wikipedia.org/wiki/Japanese%20Navy%20Signal%20Flags | The Japanese Navy Signal Flags are a set of maritime signal flags for conveying messages in the Japanese language. The system generally uses the standard International Signal Flags, assigning both the letter, number and repeater flags to various kana, roughly following Iroha order for the standard letter flags. It also... | Japanese Navy Signal Flags | Engineering | 100 |
73,305,281 | https://en.wikipedia.org/wiki/Green%20solvent | Green solvents are environmentally friendly chemical solvents that are used as a part of green chemistry. They came to prominence in 2015, when the UN defined a new sustainability-focused development plan based on 17 sustainable development goals, recognizing the need for green chemistry and green solvents for a more s... | Green solvent | Chemistry,Engineering,Environmental_science | 4,118 |
67,652,489 | https://en.wikipedia.org/wiki/Merochlorophaeic%20acid | Merochlorophaeic acid is a depside with the molecular formula C24H30O8 which has been isolated from the lichen Cladonia merochlorophaea.
References
Further reading
Polyphenols
Carboxylic acids
Phenol esters
Methoxy compounds
Pentyl compounds
Lichen products | Merochlorophaeic acid | Chemistry | 69 |
1,442,169 | https://en.wikipedia.org/wiki/Shadow%20play | Shadow play, also known as shadow puppetry, is an ancient form of storytelling and entertainment which uses flat articulated cut-out figures (shadow puppets) which are held between a source of light and a translucent screen or scrim. The cut-out shapes of the puppets sometimes include translucent color or other types o... | Shadow play | Physics | 5,324 |
254,814 | https://en.wikipedia.org/wiki/List%20of%20house%20types | This is a list of house types. Houses can be built in a large variety of configurations. A basic division is between free-standing or single-family detached homes and various types of attached or multi-family residential dwellings. Both may vary greatly in scale and the amount of accommodation provided.
By layout
Hut... | List of house types | Engineering | 2,583 |
28,530,078 | https://en.wikipedia.org/wiki/Cortinarius%20infractus | Cortinarius infractus, commonly known as the sooty-olive Cortinarius or the bitter webcap, is an inedible basidiomycete mushroom of the genus Cortinarius. The fungus produces sooty-olive fruit bodies with sticky caps measuring up to in diameter. The fruit bodies contains alkaloids that inhibit the enzyme acetylcholine... | Cortinarius infractus | Biology | 1,087 |
4,297,420 | https://en.wikipedia.org/wiki/Respiratory%20quotient | The respiratory quotient (RQ or respiratory coefficient) is a dimensionless number used in calculations of basal metabolic rate (BMR) when estimated from carbon dioxide production. It is calculated from the ratio of carbon dioxide produced by the body to oxygen consumed by the body, when the body is in a steady state. ... | Respiratory quotient | Chemistry,Biology | 1,934 |
37,822,732 | https://en.wikipedia.org/wiki/History%20of%20network%20traffic%20models | Design of robust and reliable networks and network services relies on an understanding of the traffic characteristics of the network. Throughout history, different models of network traffic have been developed and used for evaluating existing and proposed networks and services.
Demands on computer networks are not ent... | History of network traffic models | Mathematics | 3,777 |
1,158,591 | https://en.wikipedia.org/wiki/Windows%20Installer | Windows Installer (msiexec.exe, previously known as Microsoft Installer, codename Darwin) is a software component and application programming interface (API) of Microsoft Windows used for the installation, maintenance, and removal of software. The installation information, and optionally the files themselves, are packa... | Windows Installer | Technology | 1,426 |
66,771,918 | https://en.wikipedia.org/wiki/Tissiflashmob | Tissiflashmob (Finnish for "tits flash mob") was a demonstration organised by Sandra Marins and Säde Vallarén, which was held for the first time in June 2019 at the Hietaniemi beach in Helsinki, Finland. The organisers held the demonstration in criticism for a previous event where a woman had been removed from a beach ... | Tissiflashmob | Chemistry | 170 |
20,208,243 | https://en.wikipedia.org/wiki/Discovery%20and%20development%20of%20dipeptidyl%20peptidase-4%20inhibitors | Dipeptidyl peptidase-4 inhibitors (DPP-4 inhibitors) are enzyme inhibitors that inhibit the enzyme dipeptidyl peptidase-4 (DPP-4). They are used in the treatment of type 2 diabetes mellitus. Inhibition of the DPP-4 enzyme prolongs and enhances the activity of incretins that play an important role in insulin secretion a... | Discovery and development of dipeptidyl peptidase-4 inhibitors | Chemistry,Biology | 6,260 |
490,668 | https://en.wikipedia.org/wiki/Immunoglobulin%20A | Immunoglobulin A (Ig A, also referred to as sIgA in its secretory form) is an antibody that plays a role in the immune function of mucous membranes. The amount of IgA produced in association with mucosal membranes is greater than all other types of antibody combined. In absolute terms, between three and five grams are... | Immunoglobulin A | Chemistry | 2,322 |
40,458,595 | https://en.wikipedia.org/wiki/Runcicantellated%20tesseractic%20honeycomb | In four-dimensional Euclidean geometry, the runcicantellated tesseractic honeycomb is a uniform space-filling tessellation (or honeycomb) in Euclidean 4-space.
Related honeycombs
See also
Regular and uniform honeycombs in 4-space:
Tesseractic honeycomb
Demitesseractic honeycomb
24-cell honeycomb
Truncated 24-cell ho... | Runcicantellated tesseractic honeycomb | Physics,Chemistry,Materials_science | 288 |
58,608 | https://en.wikipedia.org/wiki/Trusted%20Computing | Trusted Computing (TC) is a technology developed and promoted by the Trusted Computing Group. The term is taken from the field of trusted systems and has a specialized meaning that is distinct from the field of confidential computing. With Trusted Computing, the computer will consistently behave in expected ways, and t... | Trusted Computing | Mathematics,Engineering | 4,992 |
27,928,695 | https://en.wikipedia.org/wiki/Sama%20%28company%29 | Samasource Impact Sourcing, Inc., also known as Samasource and Sama, is a training-data company, focusing on annotating data for artificial intelligence algorithms. The company offers image, video, and sensor data annotation and validation for machine learning algorithms in industries including automotive, navigation, ... | Sama (company) | Technology | 1,299 |
49,937,039 | https://en.wikipedia.org/wiki/Varian%27s%20War | Varian's War (aka Varian's War: The Forgotten Hero) is a 2001 joint Canadian/American/United Kingdom film made-for-television drama. The film was written and directed by Lionel Chetwynd, based on the life and wartime exploits of Varian Fry who saved more than 2,000 Jewish artists from Vichy France, the conquered ally o... | Varian's War | Biology | 1,875 |
74,311,590 | https://en.wikipedia.org/wiki/Einsteinium%28II%29%20chloride | Einsteinium(II) chloride is a binary inorganic chemical compound of einsteinium and chlorine with the chemical formula .
Synthesis
The compound can be prepared via a reaction of and .
Physical properties
The compound forms a solid.
References
Einsteinium compounds
Chlorides
Actinide halides | Einsteinium(II) chloride | Chemistry | 57 |
602,032 | https://en.wikipedia.org/wiki/Pierre%20Janssen | Pierre Jules César Janssen (22 February 1824 – 23 December 1907), usually known as Jules Janssen, was a French astronomer who, along with English scientist Joseph Norman Lockyer, is credited with discovering the gaseous nature of the solar chromosphere, but there is no justification for the conclusion that he deserves ... | Pierre Janssen | Physics,Chemistry | 1,303 |
41,331,720 | https://en.wikipedia.org/wiki/Weyr%20canonical%20form | In mathematics, in linear algebra, a Weyr canonical form (or, Weyr form or Weyr matrix) is a square matrix which (in some sense) induces "nice" properties with matrices it commutes with. It also has a particularly simple structure and the conditions for possessing a Weyr form are fairly weak, making it a suitable tool ... | Weyr canonical form | Mathematics | 1,398 |
1,139,926 | https://en.wikipedia.org/wiki/Hyperbolic%20sector | A hyperbolic sector is a region of the Cartesian plane bounded by a hyperbola and two rays from the origin to it. For example, the two points and on the rectangular hyperbola , or the corresponding region when this hyperbola is re-scaled and its orientation is altered by a rotation leaving the center at the origin, ... | Hyperbolic sector | Physics,Mathematics | 964 |
296,524 | https://en.wikipedia.org/wiki/Betty%20Williams | Elizabeth Williams ( Smyth; 22 May 1943 – 17 March 2020) was a peace activist from Northern Ireland. She was a co-recipient with Mairead Corrigan of the Nobel Peace Prize in 1976 for her work as a cofounder of Community of Peace People, an organisation dedicated to promoting a peaceful resolution to the Troubles in Nor... | Betty Williams | Technology | 1,782 |
58,950 | https://en.wikipedia.org/wiki/Galaxy%20cluster | A galaxy cluster, or a cluster of galaxies, is a structure that consists of anywhere from hundreds to thousands of galaxies that are bound together by gravity, with typical masses ranging from 1014 to 1015 solar masses. They are the second-largest known gravitationally bound structures in the universe after some super... | Galaxy cluster | Astronomy | 922 |
701,916 | https://en.wikipedia.org/wiki/Silly%20season | In the United Kingdom, silly season is a period in the summer months known for frivolous news stories in the mass media. The term was first attested in 1861, and listed in the second (1894) edition of Brewer's Dictionary of Phrase and Fable. The 15th edition of Brewer's defined the silly season as "the part of the year... | Silly season | Physics | 1,199 |
22,407,888 | https://en.wikipedia.org/wiki/PSR%20B1509%E2%88%9258 |
PSR B1509−58 is a pulsar approximately 17,000 light-years away in the constellation of Circinus discovered by the Einstein X-Ray Observatory in 1982. Its diameter is only . It is located in a Pulsar wind nebula created by itself, that was caused as a remnant of the Supernova (SNR) MSH 15−52 visual approximately 1,700... | PSR B1509−58 | Astronomy | 255 |
57,440,610 | https://en.wikipedia.org/wiki/Photovoltaic%20system%20performance | Photovoltaic system performance is a function of the climatic conditions, the equipment used and the system configuration. PV performance can be measured as the ratio of actual solar PV system output vs expected values, the measurement being essential for proper solar PV facility's operation and maintenance. The primar... | Photovoltaic system performance | Engineering | 2,146 |
63,891,869 | https://en.wikipedia.org/wiki/ESO%20439-26 | ESO 439-26 was considered the least luminous white dwarf known. Located 140 light years away from the Sun, it is roughly 10 billion years old and has a temperature of 4560 Kelvin. Thus, despite being classified as a "white dwarf", it would actually appear yellowish in color.
This finding is however based on a too larg... | ESO 439-26 | Astronomy | 173 |
41,032,284 | https://en.wikipedia.org/wiki/Touchmate | Touchmate is a computer products manufacturing company founded in 1988 by "Vasant Menghani". One of the leading computer product manufacturing company in UAE, it was rated "Best IT Brand of UAE" by Reseller-Magazine in 2012.
Ranging from products from tablets to smartphones.
References
Computer companies established... | Touchmate | Technology | 65 |
9,129,242 | https://en.wikipedia.org/wiki/Paulo%20Ribenboim | Paulo Ribenboim (born March 13, 1928) is a Brazilian-Canadian mathematician who specializes in number theory.
Biography
Ribenboim was born into a Jewish family in Recife, Brazil. He received his BSc in mathematics from the University of São Paulo in 1948, and won a fellowship to study with Jean Dieudonné in France at... | Paulo Ribenboim | Mathematics | 321 |
14,316,080 | https://en.wikipedia.org/wiki/Sapping | Sapping is a term used in siege operations to describe the digging of a covered trench (a "sap") to approach a besieged place without danger from the enemy's fire. The purpose of the sap is usually to advance a besieging army's position towards an attacked fortification. It is excavated by specialised military units, w... | Sapping | Engineering | 1,261 |
1,339,640 | https://en.wikipedia.org/wiki/Oversampling | In signal processing, oversampling is the process of sampling a signal at a sampling frequency significantly higher than the Nyquist rate. Theoretically, a bandwidth-limited signal can be perfectly reconstructed if sampled at the Nyquist rate or above it. The Nyquist rate is defined as twice the bandwidth of the signal... | Oversampling | Mathematics,Technology,Engineering | 1,223 |
24,008,126 | https://en.wikipedia.org/wiki/C9H18O | {{DISPLAYTITLE:C9H18O}}
The molecular formula C9H18O (molar mass: 142.24 g/mol) may refer to:
Nonanal
Nonanones
2-Nonanone
3-Nonanone
4-Nonanone
5-Nonanone, or dibutyl ketone
3,3,5-Trimethylcyclohexanol | C9H18O | Chemistry | 88 |
392,143 | https://en.wikipedia.org/wiki/Palomar%20Observatory | Palomar Observatory is an astronomical research observatory in the Palomar Mountains of San Diego County, California, United States. It is owned and operated by the California Institute of Technology (Caltech). Research time at the observatory is granted to Caltech and its research partners, which include the Jet Propu... | Palomar Observatory | Astronomy | 3,177 |
5,449,464 | https://en.wikipedia.org/wiki/Vizing%27s%20theorem | In graph theory, Vizing's theorem states that every simple undirected graph may be edge colored using a number of colors that is at most one larger than the maximum degree of the graph. At least colors are always necessary, so the undirected graphs may be partitioned into two classes: "class one" graphs for which co... | Vizing's theorem | Mathematics | 2,069 |
14,722,987 | https://en.wikipedia.org/wiki/DNA%20damage-inducible%20transcript%203 | DNA damage-inducible transcript 3, also known as C/EBP homologous protein (CHOP), is a pro-apoptotic transcription factor that is encoded by the DDIT3 gene. It is a member of the CCAAT/enhancer-binding protein (C/EBP) family of DNA-binding transcription factors. The protein functions as a dominant-negative inhibitor by... | DNA damage-inducible transcript 3 | Chemistry,Biology | 2,458 |
206,618 | https://en.wikipedia.org/wiki/NGC%207742 | NGC 7742 also known as Fried Egg Galaxy is a face-on unbarred spiral galaxy in the constellation Pegasus. Its velocity with respect to the cosmic microwave background is 1292 ± 26km/s, which corresponds to a Hubble distance of . In addition, six non-redshift measurements give a farther distance of . It was discovered ... | NGC 7742 | Astronomy | 425 |
969,477 | https://en.wikipedia.org/wiki/Preimage%20attack | In cryptography, a preimage attack on cryptographic hash functions tries to find a message that has a specific hash value. A cryptographic hash function should resist attacks on its preimage (set of possible inputs).
In the context of attack, there are two types of preimage resistance:
preimage resistance: for esse... | Preimage attack | Technology | 915 |
8,006,446 | https://en.wikipedia.org/wiki/Shoe-fitting%20fluoroscope | Shoe-fitting fluoroscopes, also sold under the names X-ray Shoe Fitter, Pedoscope and Foot-o-scope, were X-ray fluoroscope machines installed in shoe stores from the 1920s until about the 1970s in the United States, Canada, United Kingdom, Australia, South Africa, Germany and Switzerland. In the UK, they were known as ... | Shoe-fitting fluoroscope | Chemistry,Materials_science | 2,090 |
13,356,100 | https://en.wikipedia.org/wiki/Convention%20over%20configuration | Convention over configuration (also known as coding by convention) is a software design paradigm used by software frameworks that attempts to decrease the number of decisions that a developer using the framework is required to make without necessarily losing flexibility and don't repeat yourself (DRY) principles.
The ... | Convention over configuration | Engineering | 729 |
42,203,738 | https://en.wikipedia.org/wiki/Wind-assisted%20propulsion | Wind-assisted propulsion is the practice of decreasing the fuel consumption of a merchant vessel through the use of sails or some other wind capture device. Sails used to be the primary means of propelling ships, but with the advent of the steam engine and the diesel engine, sails came to be used for recreational sail... | Wind-assisted propulsion | Engineering | 1,188 |
243,327 | https://en.wikipedia.org/wiki/Glossopharyngeal%20nerve | The glossopharyngeal nerve (), also known as the ninth cranial nerve, cranial nerve IX, or simply CN IX, is a cranial nerve that exits the brainstem from the sides of the upper medulla, just anterior (closer to the nose) to the vagus nerve. Being a mixed nerve (sensorimotor), it carries afferent sensory and efferent mo... | Glossopharyngeal nerve | Biology | 2,996 |
75,630,144 | https://en.wikipedia.org/wiki/Tris%282%2C4%2C6-trimethoxyphenyl%29phosphine | Tris(2,4,6-trimethoxyphenyl)phosphine (TTMPP) is a large triaryl organophosphine whose strong Lewis-basic properties make it useful as an organocatalyst for several types of chemical reactions.
Reactions
TTMPP removes the trimethylsilyl group from ketene silyl acetals (the enol ether of esters) to give enolates that ... | Tris(2,4,6-trimethoxyphenyl)phosphine | Chemistry | 244 |
3,250,305 | https://en.wikipedia.org/wiki/Rocuronium%20bromide | Rocuronium bromide (brand names Zemuron, Esmeron) is an aminosteroid non-depolarizing neuromuscular blocker or muscle relaxant used in modern anaesthesia to facilitate tracheal intubation by providing skeletal muscle relaxation, most commonly required for surgery or mechanical ventilation. It is used for standard endot... | Rocuronium bromide | Chemistry | 755 |
397,388 | https://en.wikipedia.org/wiki/Rankine%E2%80%93Hugoniot%20conditions | The Rankine–Hugoniot conditions, also referred to as Rankine–Hugoniot jump conditions or Rankine–Hugoniot relations, describe the relationship between the states on both sides of a shock wave or a combustion wave (deflagration or detonation) in a one-dimensional flow in fluids or a one-dimensional deformation in solids... | Rankine–Hugoniot conditions | Physics,Chemistry,Mathematics,Engineering | 2,960 |
20,814,896 | https://en.wikipedia.org/wiki/The%20Gray%20Cloth | The Gray Cloth with Ten Percent White: A Ladies' Novel (in German, Das graue Tuch und zehn Prozent Weiß: Ein Damenroman) is an avant-garde novel by the fantasist and visionary writer Paul Scheerbart, first published in 1914. The book expresses its author's commitment to the use of glass in modern architecture, which ha... | The Gray Cloth | Engineering | 1,218 |
1,653,981 | https://en.wikipedia.org/wiki/Bandwidth%20throttling | Bandwidth throttling consists in the limitation of the communication speed (bytes or kilobytes per second), of the ingoing (received) or outgoing (sent) data in a network node or in a network device such as computers and mobile phones.
The data speed and rendering may be limited depending on various parameters and co... | Bandwidth throttling | Engineering | 5,096 |
4,461,797 | https://en.wikipedia.org/wiki/SBML | The Systems Biology Markup Language (SBML) is a representation format, based on XML, for communicating and storing computational models of biological processes. It is a free and open standard with widespread software support and a community of users and developers. SBML can represent many different classes of biologica... | SBML | Biology | 4,216 |
1,392,242 | https://en.wikipedia.org/wiki/Energy%20tower%20%28downdraft%29 | The energy tower is a device for producing electrical power. The brainchild of Dr. Phillip Carlson, expanded by Professor Dan Zaslavsky from the Technion. Energy towers spray water on hot air at the top of the tower, making the cooled air fall through the tower and drive a turbine at the tower's bottom.
Concept
An e... | Energy tower (downdraft) | Physics,Engineering | 1,387 |
56,588,027 | https://en.wikipedia.org/wiki/Datex%20II | Datex II or Datex2 is a data exchange standard for exchanging traffic information between traffic management centres, traffic service providers, traffic operators and media partners. It contains for example traffic incidents, current road works and other special traffic-related events. These data is presented in XML-fo... | Datex II | Technology | 178 |
28,304,972 | https://en.wikipedia.org/wiki/Glycylglycine | Glycylglycine is the dipeptide of glycine, making it the simplest peptide.
The compound was first synthesized by Emil Fischer and Ernest Fourneau in 1901 by boiling 2,5-diketopiperazine (glycine anhydride) with hydrochloric acid.
Shaking with alkali and other synthesis methods have been reported.
Because of its low to... | Glycylglycine | Chemistry,Materials_science | 201 |
13,219,793 | https://en.wikipedia.org/wiki/New%20Alchemy%20Institute | The New Alchemy Institute was a research center that did pioneering investigation into organic agriculture, aquaculture and bioshelter design between 1969 and 1991. It was founded by John Todd, Nancy Jack Todd, and William McLarney. Its purpose was to research human support systems of food, water, and shelter and to co... | New Alchemy Institute | Environmental_science | 679 |
20,559,838 | https://en.wikipedia.org/wiki/Intertidal%20wetland | An intertidal wetland is an area along a shoreline that is exposed to air at low tide and submerged at high tide. This type of wetland is defined by an intertidal zone and includes its own intertidal ecosystems.
Description
The main types of intertidal wetlands are mudflats (e.g., mangrove swamps) and salt marshes. Th... | Intertidal wetland | Environmental_science | 149 |
3,299,423 | https://en.wikipedia.org/wiki/Transversality%20%28mathematics%29 | In mathematics, transversality is a notion that describes how spaces can intersect; transversality can be seen as the "opposite" of tangency, and plays a role in general position. It formalizes the idea of a generic intersection in differential topology. It is defined by considering the linearizations of the intersecti... | Transversality (mathematics) | Mathematics | 1,758 |
48,323,501 | https://en.wikipedia.org/wiki/136th%20Civil%20Engineer%20Squadron | The 136th Civil Engineer Squadron (136 CES) is a unit of the 136th Airlift Wing, Texas Air National Guard, Texas Military Forces stationed at Naval Air Station Fort Worth Joint Reserve Base, Fort Worth, Texas. If activated to federal service, the Squadron is gained by the United States Air Force Air Mobility Command.
... | 136th Civil Engineer Squadron | Engineering | 314 |
48,782,942 | https://en.wikipedia.org/wiki/Sebelipase%20alfa | Sebelipase alfa, sold under the brand name Kanuma, is a recombinant form of the enzyme lysosomal acid lipase (LAL) that is used as a medication for the treatment of lysosomal acid lipase deficiency (LAL-D). It is administered via intraveneous infusion. It was approved for medical use in the European Union and in the ... | Sebelipase alfa | Chemistry,Biology | 335 |
56,615,271 | https://en.wikipedia.org/wiki/Aparna%20Higgins | Aparna W. Higgins is a mathematician known for her encouragement of undergraduate mathematicians to participate in mathematical research. Higgins originally specialized in universal algebra, but her more recent research concerns graph theory, including graph pebbling and line graphs. She is a professor of mathematics a... | Aparna Higgins | Mathematics | 352 |
44,014,576 | https://en.wikipedia.org/wiki/The%20Palindromist | The Palindromist is a magazine devoted to palindromes, published since 1996. Initially it was published biannually. The frequency switched to irregular. It is edited by Mark Saltveit, a Portland-based stand-up comedian who won the first-ever World Palindrome Championship.
Each issue of the magazine prints a variety of... | The Palindromist | Physics | 272 |
23,553,917 | https://en.wikipedia.org/wiki/Reider%27s%20theorem | In algebraic geometry, Reider's theorem gives conditions for a line bundle on a projective surface to be very ample.
Statement
Let D be a nef divisor on a smooth projective surface X. Denote by KX the canonical divisor of X.
If D2 > 4, then the linear system |KX+D| has no base points unless there exists a nonzero eff... | Reider's theorem | Mathematics | 267 |
2,990,689 | https://en.wikipedia.org/wiki/Modeling%20perspective | A modeling perspective in information systems is a particular way to represent pre-selected aspects of a system. Any perspective has a different focus, conceptualization, dedication and visualization of what the model is representing.
The traditional way to distinguish between modeling perspectives is structural, fun... | Modeling perspective | Technology,Engineering | 1,071 |
15,275,135 | https://en.wikipedia.org/wiki/Jon%20Lomberg | Jon Lomberg (born 1948) is an American space artist and science journalist. He was Carl Sagan's principal artistic collaborator for more than twenty years on many projects from 1972 through 1996. In 1998, the International Astronomical Union officially named an asteroid (6446 Lomberg) in recognition of his achievement... | Jon Lomberg | Astronomy | 1,196 |
64,694,403 | https://en.wikipedia.org/wiki/Bat1K | Bat1K is a project to sequence the genomes of all living bat species to the level of chromosomes and then make the data publicly available. The project began in 2017.
History
Bat1K was founded in 2017. Zoologist and geneticist Emma Teeling and neurogeneticist Sonja Vernes are co-founders. The Bat1K consortium includes... | Bat1K | Biology | 331 |
68,116,053 | https://en.wikipedia.org/wiki/Mark%20Shtaif | Mark Shtaif (Hebrew: מרק שטייף) is an Israeli communication scientist, and a professor of electrical engineering at the faculty of engineering of Tel Aviv University. As of October 2020, he serves as Tel Aviv University’s rector.
Biography
Early life
Mark Shtaif was born in 1966 in Kishinev of the former USSR. His f... | Mark Shtaif | Engineering | 483 |
34,667,944 | https://en.wikipedia.org/wiki/Frozen%20mirror%20image%20method | Frozen mirror image method (or method of frozen images) is an extension of the method of images for magnet-superconductor systems that has been introduced by Alexander Kordyuk in 1998 to take into account the magnetic flux pinning phenomenon. The method gives a simple representation of the magnetic field distribution g... | Frozen mirror image method | Physics,Chemistry,Materials_science,Engineering | 484 |
57,065,322 | https://en.wikipedia.org/wiki/Interpump%20Group | Interpump Group S.p.A. is an Italian company specialized in the production of high and very high pressure water pumps and one of the world's leading groups in the hydraulic sector.
It is listed in the FTSE Italia Mid Cap and FTSE Italia STAR index of the Borsa Italiana.
History
The company was founded in 1977 in the ... | Interpump Group | Physics,Engineering,Environmental_science | 581 |
46,386,116 | https://en.wikipedia.org/wiki/Cookie%20Jar%20Butte | Cookie Jar Butte is a tower in Kane County, Utah, in the United States with an elevation of . It is located in Padre Bay on the north shore of Lake Powell.
References
External links
Cookie Jar Butte photo: National Park Service
Weather forecast: Cookie Jar Butte
Landforms of Kane County, Utah
Buttes of Utah
Colora... | Cookie Jar Butte | Engineering | 74 |
30,006,269 | https://en.wikipedia.org/wiki/LG%20Optimus%207 | The LG Optimus 7 (also known as the LG-E900) is a slate smartphone which runs Microsoft's Windows Phone operating system. The Optimus 7 is part of the first-generation Windows Phone line-up launched in October 2010.
Technical issues
Update issues
Several users reported an error while updating their handsets to Window... | LG Optimus 7 | Technology | 319 |
27,660,529 | https://en.wikipedia.org/wiki/Oxidation%20with%20chromium%28VI%29%20complexes | Oxidation with chromium(VI) complexes involves the conversion of alcohols to carbonyl compounds or more highly oxidized products through the action of molecular chromium(VI) oxides and salts. The principal reagents are Collins reagent, PDC, and PCC. These reagents represent improvements over inorganic chromium(VI) reag... | Oxidation with chromium(VI) complexes | Chemistry | 1,426 |
69,080,137 | https://en.wikipedia.org/wiki/Izhar%20Bar-Gad | Izhar Bar-Gad is a full professor at the Leslie and Susan Gonda Brain Research Center at Bar-Ilan University. Bar-Gad is a researcher in the field of neurophysiology and neural computation. His main areas of research are information processing in the basal ganglia in a normal state and in various pathologies, such as P... | Izhar Bar-Gad | Technology | 556 |
43,293,178 | https://en.wikipedia.org/wiki/Sony%20Vaio%20TP%20series | The Sony Vaio TP series was a series of living room PCs part of Sony's Vaio line that sold from 2007 through 2008.
Models
References
TP
Computer-related introductions in 2007
Consumer electronics brands | Sony Vaio TP series | Technology | 44 |
44,048,160 | https://en.wikipedia.org/wiki/Homology-derived%20Secondary%20Structure%20of%20Proteins | HSSP (Homology-derived Secondary Structure of Proteins) is a database that combines structural and sequence information about proteins. This database has the information of the alignment of all available homologs of proteins from the PDB database As a result of this, HSSP is also a database of homology-based implied pr... | Homology-derived Secondary Structure of Proteins | Chemistry | 87 |
4,988,544 | https://en.wikipedia.org/wiki/Omega1%20Aquarii | {{DISPLAYTITLE:Omega1 Aquarii}}
Omega1 Aquarii, Latinized from ω1 Aquarii, is the Bayer designation for a binary star in the equatorial constellation of Aquarius. With an apparent visual magnitude of 4.96, this star is faintly visible to the naked eye from the suburbs. The distance to this star can be estimated from t... | Omega1 Aquarii | Astronomy | 254 |
58,622,954 | https://en.wikipedia.org/wiki/Aspergillus%20corrugatus | Aspergillus corrugatus is a species of fungus in the genus Aspergillus. It is from the Nidulantes section. The species was first described in 1976. It has been isolated from soil in Thailand. It has been reported to produce asperthecin, emecorrugatin A, emecorrugatin B, sterigmatocystin, and norsolorinic acid.
Growth ... | Aspergillus corrugatus | Biology | 158 |
2,239,396 | https://en.wikipedia.org/wiki/Smartwrap | Smartwrap is an ultra-thin polymer-based material made by James Timberlake and Stephen Kieran of Philadelphia architecture firm KieranTimberlake.
The compound consists of substrate and printed and laminated layers that have been roll-coated into a single film. The resulting film has the ability to alter look and color... | Smartwrap | Physics | 86 |
55,756,466 | https://en.wikipedia.org/wiki/Judy%20Green%20%28mathematician%29 | Judith (Judy) Green (born 1943) is an American logician and historian of mathematics who studies women in mathematics. She is a founding member of the Association for Women in Mathematics; she has also served as its vice president, and as the vice president of the American Association of University Professors.
Educati... | Judy Green (mathematician) | Mathematics | 326 |
59,630,222 | https://en.wikipedia.org/wiki/IBM%20Q%20System%20One | IBM Quantum System One is the first circuit-based commercial quantum computer, introduced by IBM in January 2019.
This integrated quantum computing system is housed in an airtight borosilicate glass cube that maintains a controlled physical environment. Each face of the cube is wide and tall. A cylindrical protrusion... | IBM Q System One | Technology | 283 |
19,928,041 | https://en.wikipedia.org/wiki/Effects%20of%20climate%20change%20on%20plant%20biodiversity | There is an ongoing decline in plant biodiversity, just like there is ongoing biodiversity loss for many other life forms. One of the causes for this decline is climate change. Environmental conditions play a key role in defining the function and geographic distributions of plants. Therefore, when environmental conditi... | Effects of climate change on plant biodiversity | Biology | 1,508 |
2,297,912 | https://en.wikipedia.org/wiki/Mueller%20calculus | Mueller calculus is a matrix method for manipulating Stokes vectors, which represent the polarization of light. It was developed in 1943 by Hans Mueller. In this technique, the effect of a particular optical element is represented by a Mueller matrix—a 4×4 matrix that is an overlapping generalization of the Jones matri... | Mueller calculus | Physics,Mathematics | 900 |
2,824,030 | https://en.wikipedia.org/wiki/In-system%20programming | In-system programming (ISP), or also called in-circuit serial programming (ICSP), is the ability of some programmable logic devices, microcontrollers, chipsets and other embedded devices to be programmed while installed in a complete system, rather than requiring the chip to be programmed prior to installing it into th... | In-system programming | Engineering | 2,644 |
39,515,134 | https://en.wikipedia.org/wiki/Mass%20cytometry | Mass cytometry is a mass spectrometry technique based on inductively coupled plasma mass spectrometry and time of flight mass spectrometry used for the determination of the properties of cells (cytometry). In this approach, antibodies are conjugated with isotopically pure elements, and these antibodies are used to labe... | Mass cytometry | Physics,Chemistry,Biology | 937 |
3,444,238 | https://en.wikipedia.org/wiki/Comparison%20of%20assemblers | This is an incomplete comparison of assemblers. Some assemblers are components of a compiler system for a high-level programming language and may have limited or no usable functionality outside of the compiler system. Some assemblers are hosted on the target processor and operating system, while other assemblers (cross... | Comparison of assemblers | Technology | 770 |
56,954,329 | https://en.wikipedia.org/wiki/Metallacyclopentanes | In organometallic chemistry, metallacyclopentanes are compounds with the formula LnM(CH2)4 (Ln = ligands, and M = metal). They are a type of metallacycle. Metallacyclopentanes are intermediates in some metal-catalysed reactions in homogeneous catalysis.
Synthesis
Traditionally, metallacyclopentanes are prepared by dia... | Metallacyclopentanes | Chemistry | 545 |
24,431,452 | https://en.wikipedia.org/wiki/Leccinum%20manzanitae | Leccinum manzanitae is an edible species of bolete fungus in the family Boletaceae. Described as new to science in 1971, it is commonly known as the manzanita bolete for its usual mycorrhizal association with manzanita trees. Its fruit bodies (mushrooms) have sticky reddish to brown caps up to , and its stipes are up t... | Leccinum manzanitae | Biology | 1,502 |
21,714,705 | https://en.wikipedia.org/wiki/Indian%20Institute%20of%20Science%20Education%20and%20Research%2C%20Bhopal | Indian Institute of Science Education and Research, Bhopal (IISERB or IISER Bhopal) is a prestigious autonomous research institute in Bhauri, Bhopal district, Madhya Pradesh, India. It was established by the Ministry of Education (India), Government of India in 2008 in order to incorporate research in fundamental scien... | Indian Institute of Science Education and Research, Bhopal | Materials_science | 2,294 |
29,967,061 | https://en.wikipedia.org/wiki/Resupinatus%20applicatus | Resupinatus applicatus, commonly known as the smoked oysterling or the black jelly oyster, is a species of fungus in the family Tricholomataceae, and the type species of the genus Resupinatus. First described in 1786 as Agaricus applicatus by August Johann Georg Karl Batsch, it was transferred to Resupinatus by Samuel ... | Resupinatus applicatus | Biology | 204 |
17,055 | https://en.wikipedia.org/wiki/Kotoamatsukami | In Shinto, is the collective name for the first gods which came into existence at the time of the creation of the universe. They were born in Takamagahara, the world of Heaven at the time of the creation. Unlike the later gods, these deities were born without any procreation.
The three deities that first appeared wer... | Kotoamatsukami | Astronomy | 535 |
237,876 | https://en.wikipedia.org/wiki/Deformation%20%28engineering%29 | In engineering, deformation (the change in size or shape of an object) may be elastic or plastic.
If the deformation is negligible, the object is said to be rigid.
Main concepts
Occurrence of deformation in engineering applications is based on the following background concepts:
Displacements are any change in positio... | Deformation (engineering) | Physics,Materials_science,Engineering | 2,943 |
50,568,483 | https://en.wikipedia.org/wiki/Read-once%20function | In mathematics, a read-once function is a special type of Boolean function that can be described by a Boolean expression in which each variable appears only once.
More precisely, the expression is required to use only the operations of logical conjunction, logical disjunction, and negation. By applying De Morgan's law... | Read-once function | Mathematics | 682 |
37,165,192 | https://en.wikipedia.org/wiki/Algebraic%20matroid | In mathematics, an algebraic matroid is a matroid, a combinatorial structure, that expresses an abstraction of the relation of algebraic independence.
Definition
Given a field extension L/K, Zorn's lemma can be used to show that there always exists a maximal algebraically independent subset of L over K. Further, all t... | Algebraic matroid | Mathematics | 631 |
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