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Angioedema
Angioedema is an area of swelling (edema) of the lower layer of skin and tissue just under the skin or mucous membranes. The swelling may occur in the face, tongue, larynx, abdomen, or arms and legs. Often it is associated with hives, which are swelling within the upper skin. Onset is typically over minutes to hours.Th...
CUTEr
CUTEr (Constrained and Unconstrained Testing Environment, revisited) is an open source testing environment for optimization and linear algebra solvers. CUTEr provides a collection of test problems along with a set of tools to help developers design, compare, and improve new and existing test problem solvers. CUTEr is t...
Sigma factor
A sigma factor (σ factor or specificity factor) is a protein needed for initiation of transcription in bacteria. It is a bacterial transcription initiation factor that enables specific binding of RNA polymerase (RNAP) to gene promoters. It is homologous to archaeal transcription factor B and to eukaryotic factor TFIIB....
X-linked reticulate pigmentary disorder
X-linked reticulate pigmentary disorder is a rare X-linked genetic condition in which males manifest multiple systemic symptoms and a reticulated mottled brown pigmentation of the skin, which, on biopsy, demonstrated dermal deposits of amyloid. Females usually only have linear streaks of hyperpigmentation.The syndrome ...
Partition-Saving
Partition-Saving is a disk imaging utility for Linux, Windows and DOS environments that can save disk partitions in one of the several supported disk image formats. This utility was originally called Savepart but was renamed to avoid conflict with a similarly named OS/2 utility.
Name calling
Name-calling is a form of argument in which insulting or demeaning labels are directed at an individual or group. This phenomenon is studied by a variety of academic disciplines such as anthropology, child psychology, and political science. It is also studied by rhetoricians, and a variety of other disciplines.
Fire cut
In the construction of masonry buildings, a fire cut or fireman's cut is a diagonal chamfer of the end of a joist or beam where it enters a masonry wall. If the joist burns through somewhere along its length, damage to the wall is prevented as the fire cut allows the joist to fail and still leave the masonry wall stand...
Octatetraene
In organic chemistry, octatetraene is a linear hydrocarbon consisting of a chain of eight carbon atoms linked by an alternating double-bond/single-bond pattern. The central two of the four alkene units can exhibit cis–trans isomerism, resulting in three isomers.
Trustworthy Software Foundation
The Trustworthy Software Foundation (TSFdn) is a UK not-for-profit organisation, with stated aim of improving software.
EuFOD
EuFOD is the chemical compound with the formula Eu(OCC(CH3)3CHCOC3F7)3, also called Eu(fod)3. This coordination compound is used primarily as a shift reagent in NMR spectroscopy. It is the premier member of the lanthanide shift reagents and was popular in the 1970s and 1980s.
Nanodumbbell
A nanodumbell is a pair of spheres attached together that may be made of silica or zinc oxide.They have been used in a Purdue University experiment where they were made to spin in a vacuum at 60 billion rotations per minute.
Motorola Homesight
Motorola Homesight is a brand name for a range of home security and automation products marketed in the U.S. and UK, which include separate items and a product package. The latter is marketed and sold as a kit and the product range offers flexibility in choice of accessories with which the customer can expand the kit i...
Parthenocissus laetevirens
Parthenocissus laetevirens is a climbing plant species in the genus Parthenocissus found in China. Parthenocissus laetevirens contains the stilbene oligomers laetevirenol A, B, C, D and E, the stilbene tetramers laetevirenol F and G as well as the dimers of resveratrol parthenocissin A, quadrangularin A, pallidol and a...
India-based Neutrino Observatory
India-based Neutrino Observatory (INO) is a particle physics research project under construction to primarily study atmospheric neutrinos in a 1,200 meters (3,900 ft) deep cave under INO Peak near Theni, Tamil Nadu, India. This project is notable in that it is anticipated to provide a precise measurement of neutrino mi...
Double hull
A double hull is a ship hull design and construction method where the bottom and sides of the ship have two complete layers of watertight hull surface: one outer layer forming the normal hull of the ship, and a second inner hull which is some distance inboard, typically by a few feet, which forms a redundant barrier to...
Rasmus Pagh
Rasmus Pagh is a Danish computer scientist and a professor of computer science at the University of Copenhagen. His main work is in algorithms and data structures, and he is particularly known for the cuckoo hashing algorithm and for co-founding the Basic Algorithms Research Center, BARC, in Copenhagen.
Shoulder pad (sport)
Shoulder pads are a piece of protective equipment used in many contact sports such as gridiron football, lacrosse, and ice hockey and some non-contact sports such as ringette. Most modern shoulder pads consist of a shock absorbing foam material with a hard plastic outer covering. The pieces are usually secured by rivet...
Console television
A console television is a type of CRT television most popular in, but not exclusive to, the United States and Canada. Console CRT televisions are distinguished from standard CRT televisions by their factory-built, non-removable, wooden cabinets and speakers, which form an integral part of the television's design. Best ...
Place and route
Place and route is a stage in the design of printed circuit boards, integrated circuits, and field-programmable gate arrays. As implied by the name, it is composed of two steps, placement and routing. The first step, placement, involves deciding where to place all electronic components, circuitry, and logic elements in...
Sex cords
In embryogenesis, the sex cords (primitive sex cords, primitive seminiferous cords, or gonadal cords) are structures that develop from the genital ridges that further differentiate based on an embryo's sex. After sexual differentiation, at day 49, the sex cords in females become the cortical cords, also called secondar...
Value object
In computer science, a value object is a small object that represents a simple entity whose equality is not based on identity: i.e. two value objects are equal when they have the same value, not necessarily being the same object.Examples of value objects are objects representing an amount of money or a date range.
Truck driver
A truck driver (commonly referred to as a trucker, teamster or driver in the United States and Canada; a truckie in Australia and New Zealand; a HGV driver in the United Kingdom, Ireland and the European Union, a lorry driver, or driver in the United Kingdom, Ireland, India, Nepal, Pakistan, Malaysia and Singapore) is ...
Colocation (business)
Colocation (or co-location) is the act of placing multiple (sometimes related) entities within a single location.
Microsoft Developer Network
Microsoft Developer Network (MSDN) was the division of Microsoft responsible for managing the firm's relationship with developers and testers, such as hardware developers interested in the operating system (OS), and software developers developing on the various OS platforms or using the API or scripting languages of Mi...
DS-1 (drug)
DS-1 is a drug from the imidazopyridine family, which is the first drug developed that acts as a GABAA receptor positive allosteric modulator (PAM) selective for the α4β3δ subtype, which is not targeted by other GABAA receptor PAMs such as the benzodiazepines or other nonbenzodiazepine drugs. Novel selective drugs such...
Glare (vision)
Glare is difficulty of seeing in the presence of bright light such as direct or reflected sunlight or artificial light such as car headlamps at night. Because of this, some cars include mirrors with automatic anti-glare functions and in buildings, blinds or louvers are often used to protect occupants. Glare is caused b...
Tensoba
Tensoba, or tempura soba, is a Japanese dish of soba noodles and tempura.
Eskimo Rescue
An Eskimo rescue, bow rescue or T-rescue is a kayaking technique performed to recover a kayaker from a capsize without them having to leave their boat or perform a self-rescue such as a kayak roll. The advantages of this manoeuvre are that the kayaker does not have to get out of the kayak and the kayak does not then ha...
Biscuits and gravy
Biscuits and gravy is a popular breakfast dish in the United States, especially in the South. The dish consists of soft dough biscuits covered in white gravy (sawmill gravy), made from the drippings of cooked pork sausage, flour, milk, and often (but not always) bits of sausage, bacon, ground beef, or other meat. The g...
Computerised Pilot Selection System
The Computerised Pilot Selection System is used for screening candidates into the flight branch of the Indian Air Force. It replaced the earlier pilot selection test named Pilot Aptitude Battery Test (PABT). It was originally conceived by then Scientific Advisor to the Prime Minister Dr. APJ Abdul Kalam with a view to ...
Nucleoside oxidase
Nucleoside oxidase (EC 1.1.3.28) is an enzyme with systematic name nucleoside:oxygen 5'-oxidoreductase. This enzyme catalyses the following chemical reaction inosine + O2 ⇌ 9-riburonosylhypoxanthine + H2O (1a) 2 inosine + O2 ⇌ 2 5'-dehydroinosine + 2 H2O (1b) 2 5'-dehydroinosine + O2 ⇌ 2 9-riburonosylhypoxanthineThi...
Libwww
Libwww is an early World Wide Web software library providing core functions for web browsers, implementing HTML, HTTP, and other technologies. Tim Berners-Lee, at the European Organization for Nuclear Research (CERN), released libwww (then also called the Common Library) in late 1992, comprising reusable code from the ...
(S)-tetrahydroprotoberberine N-methyltransferase
In enzymology, a (S)-tetrahydroprotoberberine N-methyltransferase (EC 2.1.1.122) is an enzyme that catalyzes the chemical reaction S-adenosyl-L-methionine + (S)-7,8,13,14-tetrahydroprotoberberine ⇌ S-adenosyl-L-homocysteine + cis-N-methyl-(S)-7,8,13,14-tetrahydroprotoberberineThus, the two substrates of this enzyme ar...
Double penetration
Double penetration (sometimes called DP for short) is a term that usually refers to a vaginal and anal sex act involving one penis penetrating a woman's vagina while another penetrates her anus.
Elliptic-curve Diffie–Hellman
Elliptic-curve Diffie–Hellman (ECDH) is a key agreement protocol that allows two parties, each having an elliptic-curve public–private key pair, to establish a shared secret over an insecure channel. This shared secret may be directly used as a key, or to derive another key. The key, or the derived key, can then be use...
Kinamycin
Kinamycins are a group of bacterial polyketide secondary metabolites containing a diazo group. Kinamycins are known for their cytotoxicity and are considered of interest for potential use in anti-cancer therapies.
Tuberculosis hut
A tuberculosis hut or TB hut is a small wooden building that was used, mostly in the early twentieth century, by tuberculosis patients to recover in solitude.
Sensor (character)
This page discusses the post-Zero Hour reboot version of the character. For the other versions, see Princess Projectra. Jeka Wynzorr, codenamed Sensor, is a fictional character, a superheroine in the future of the DC Comics universe, and a member of the Legion of Super-Heroes. She is a snake-like alien, who was later a...
Drawing (manufacturing)
Drawing is a metalworking process that uses tensile forces to elongate metal, glass, or plastic. As the material is drawn (pulled), it stretches and becomes thinner, achieving a desired shape and thickness. Drawing is classified into two types: sheet metal drawing and wire, bar, and tube drawing. Sheet metal drawing is...
Μ operator
In computability theory, the μ-operator, minimization operator, or unbounded search operator searches for the least natural number with a given property. Adding the μ-operator to the primitive recursive functions makes it possible to define all computable functions.
Pulmonary artery catheter
A pulmonary artery catheter (PAC), also known as a Swan-Ganz catheter or right heart catheter, is a balloon-tipped catheter that is inserted into a pulmonary artery in a procedure known as pulmonary artery catheterization or right heart catheterization. Pulmonary artery catheterization is a useful measure of the overal...
Lisp machine
Lisp machines are general-purpose computers designed to efficiently run Lisp as their main software and programming language, usually via hardware support. They are an example of a high-level language computer architecture, and in a sense, they were the first commercial single-user workstations. Despite being modest in...
László Fejes Tóth
László Fejes Tóth (Hungarian: Fejes Tóth László, pronounced [ˈfɛjɛʃ ˈtoːt ˈlaːsloː] 12 March 1915 – 17 March 2005) was a Hungarian mathematician who specialized in geometry. He proved that a lattice pattern is the most efficient way to pack centrally symmetric convex sets on the Euclidean plane (a generalization of Thu...
AFG3L2
AFG3 ATPase family gene 3-like 2 (S. cerevisiae) is a protein that in humans is encoded by the AFG3L2 gene.This gene encodes a protein localized in mitochondria and closely related to paraplegin. The paraplegin gene is responsible for an autosomal recessive form of hereditary spastic paraplegia. This gene is a candidat...
Roughing filter
Roughing filters provide pretreatment for turbid water or simple, low maintenance treatment when high water quality is not needed.
Autonomic nerve
The autonomic nerve is a small nerve which carries postganglionic sympathetic and parasympathetic neurons from the zygomaticotemporal nerve; a branch of the maxillary nerve, to the lacrimal nerve; a branch of the ophthalmic nerve. These neurons derive from the superior cervical ganglion and the pterygopalatine ganglion...
60S ribosomal protein L21
60S ribosomal protein L21 is a protein that in humans is encoded by the RPL21 gene.Ribosomes, the organelles that catalyze protein synthesis, consist of a small 40S subunit and a large 60S subunit. Together these subunits are composed of 4 RNA species and approximately 80 structurally distinct proteins. This gene encod...
Substantia ferruginea
The substantia ferruginea is an underlying patch of deeply pigmented nerve cells located in the floor of the superior part of the sulcus limitans.It was coined in 1838 and 1851.
Dealer's choice
Dealer's choice is a style of poker where each player may deal a different variant. As the deal passes clockwise around the table, each player occupying the dealer position chooses a variant which is either played just for the current hand or for an entire orbit. It is a common choice for home games, where the tone of ...
Linear graph grammar
In computer science, a linear graph grammar (also a connection graph reduction system or a port graph grammar) is a class of graph grammar on which nodes have a number of ports connected together by edges and edges connect exactly two ports together. Interaction nets are a special subclass of linear graph grammars in w...
Open Theology
Open Theology is a peer-reviewed open access academic journal published by De Gruyter since 2015. It covers theology and religious studies. The editor-in-chief is Charles Taliaferro (St. Olaf College).
Kronos effect
The Kronos effect is a term coined by Columbia Law School professor Tim Wu in his 2010 book The Master Switch: The Rise and Fall of Information Empires. It describes how companies that establish early dominance in a period of disruptive innovation will do everything in their power to maintain their first-mover advantag...
Arabinosyl nucleosides
Arabinosyl nucleosides are derivatives of the nucleosides. They contain – in contrast to most nucleosides – instead of the β-D-Ribofuranose the β-D-Arabinofuranose. They are mostly used as cytostatics or virostatics.
Endo-exo isomerism
In organic chemistry, endo–exo isomerism is a special type of stereoisomerism found in organic compounds with a substituent on a bridged ring system. The prefix endo is reserved for the isomer with the substituent located closest, or "syn", to the longest bridge. The prefix exo is reserved for the isomer with the subst...
Sable Systems
Sable Systems develops and manufactures equipment for whole animal respirometry and offers courses in respirometry.
Shadowgraph
Shadowgraph is an optical method that reveals non-uniformities in transparent media like air, water, or glass. It is related to, but simpler than, the schlieren and schlieren photography methods that perform a similar function. Shadowgraph is a type of flow visualisation.
Metrics (networking)
Router metrics are configuration values used by a router to make routing decisions. A metric is typically one of many fields in a routing table. Router metrics help the router choose the best route among multiple feasible routes to a destination. The route will go in the direction of the gateway with the lowest metric....
Edding
edding AG is a German company that manufactures writing and marking tools such as felt-tip pens and permanent markers.
Rubber ducky antenna
The rubber ducky antenna (or rubber duck aerial) is an electrically short monopole antenna that functions somewhat like a base-loaded whip antenna. It consists of a springy wire in the shape of a narrow helix, sealed in a rubber or plastic jacket to protect the antenna. Rubber ducky antenna is a form of normal-mode hel...
British land speed record
The British land speed record is the fastest land speed achieved by a vehicle in the United Kingdom, as opposed to one on water or in the air. It is standardised as the speed over a course of fixed length, averaged over two runs in opposite directions.
Octagon (video game)
Octagon (fully titled Octagon – A Minimal Arcade Game with Maximum Challenge) is a minimalist twitch-reflex video game by Lukas Korba.
HLA-B15
HLA-B15 (B15) is an HLA-B serotype. The serotype identifies the B*15 gene-allele protein products of HLA-B.B15 is a broad antigen can be subdivided into several split antigens that are often used in characterization. These are B62, B63, B70, B71, B72, B75, B76, B77. B*15 is the largest allele grouping for any known hum...
Jordan and Einstein frames
The Lagrangian in scalar-tensor theory can be expressed in the Jordan frame in which the scalar field or some function of it multiplies the Ricci scalar, or in the Einstein frame in which Ricci scalar is not multiplied by the scalar field. There exist various transformations between these frames. Despite the fact that ...
Normorphine
Normorphine is an opiate analogue, the N-demethylated derivative of morphine, that was first described in the 1950s when a large group of N-substituted morphine analogues were characterized for activity. The compound has relatively little opioid activity in its own right, but is a useful intermediate which can be used ...
Commonly misspelled words in French
Misspellings in French are a subset of errors in French orthography.
SourceForge Installer
The SourceForge Installer is a discontinued piece of software that was included in some downloads from SourceForge. It was often bundled with adware and crapware designed to trick people into installing unwanted software. SourceForge has been criticized about its use of this installer. Opinions of this feature vary, wi...
RNAi-Based Identification System and interference of Specific Cancer Cells
A "classifier" is created to categorize cells by identifying specific characteristics of cervical cancer. These characteristics are consistent with HeLa cells, which serve as the target cell line for cell death. Upon identifying these cells, the classifier releases specific proteins within the HeLa cell that trigger ap...
Castration anxiety
Castration anxiety is an idea in psychoanalytic theory.
Acetiromate
Acetiromate is an antilipidemic drug which is used to treat hyperlipidemia. It is also known as Adecol, TBF 43, or acetyltriiodothyronine formic acid.
Chin Na
Qinna (Chinese: 擒拿; pinyin: qínná; Wade–Giles: ch'in na) is the set of joint lock techniques used in the Chinese martial arts to control or lock an opponent's joints or muscles/tendons so they cannot move, thus neutralizing the opponent's fighting ability. Qinna Shu (Chinese: 術; pinyin: shù meaning "technique") literal...
Water jet cutter
A water jet cutter, also known as a water jet or waterjet, is an industrial tool capable of cutting a wide variety of materials using an extremely high-pressure jet of water, or a mixture of water and an abrasive substance. The term abrasive jet refers specifically to the use of a mixture of water and an abrasive to cu...
Digital perm
A digital perm is a perm that uses hot rods with the temperature regulated by a machine with a digital display, hence the name. The process is otherwise similar to that of a traditional perm. The name "digital perm" is trademarked by a Japanese company, Paimore Co. Hairstylists usually call it a "hot perm." A normal pe...
BAG3
BAG family molecular chaperone regulator 3 is a protein that in humans is encoded by the BAG3 gene. BAG3 is involved in chaperone-assisted selective autophagy.
Small nucleolar RNA Z247
In molecular biology, Small nucleolar RNA Z247 is a non-coding RNA (ncRNA) molecule which functions in the modification of other small nuclear RNAs (snRNAs). This type of modifying RNA is usually located in the nucleolus of the eukaryotic cell which is a major site of snRNA biogenesis. It is known as a small nucleolar ...
Closed (poker)
In the game of poker, a betting round is said to be closed if no player will have the right to raise in the round. Normally this occurs when a player calls, and the next player whose turn it is to act is the one who made the last raise, so he cannot raise further (this ends the betting round). The round can also said t...
Language change
Language change is variation over time in a language's features. It is studied in several subfields of linguistics: historical linguistics, sociolinguistics, and evolutionary linguistics. Traditional theories of historical linguistics identify three main types of change: systematic change in the pronunciation of phonem...
Boussinesq approximation
Boussinesq approximation may refer to several modelling concepts – as introduced by Joseph Valentin Boussinesq (1842–1929), a French mathematician and physicist known for advances in fluid dynamics: Boussinesq approximation (buoyancy) for buoyancy-driven flows for small density differences in the fluid Boussinesq appr...
Racine stages
Racine stages are a categorization of epileptic seizures proposed by Ronald J. Racine in 1972. Prior to Racine's research in epilepsy, a quantifiable means to describe seizure intensities and their causes was not readily available. Racine's work allowed for epilepsy to be understood on a level previously thought imposs...
Reglet (typesetting)
A reglet is a piece of wooden spacing material used in typesetting, usually to provide spacing between paragraphs, though it is sometimes used to fill in small spaces not taken up by type in the chase.
Camp shirt
A camp shirt, variously known as a cabin shirt, Cuban collar shirt, cabana shirt, and lounge shirt, is a loose, straight-cut, woven, short-sleeved button-front shirt or blouse with a simple placket front opening and a "camp collar" - a one-piece collar (no band collar) that can be worn open and spread or closed at the ...
Zeit Wissen
Zeit Wissen is a bi-monthly popular science magazine published in Germany. The magazine is spun off from the German weekly newspaper Die Zeit. The German phrase "Zeit Wissen" literally translates to "Time-Knowledge," and refers to the up-to-the-minute nature of the magazine's subject matter and focus.
Trigger finger
Trigger finger, also known as stenosing tenosynovitis, is a disorder characterized by catching or locking of the involved finger in full or near full flexion, typically with force. There may be tenderness in the palm of the hand near the last skin crease (distal palmar crease). The name "trigger finger" may refer to th...
Rupture (social networking)
Rupture was a social networking site for gamers. Users were able to create profiles and interact with one another with the standard array of social networking tools.
Lanchester's laws
Lanchester's laws are mathematical formulae for calculating the relative strengths of military forces. The Lanchester equations are differential equations describing the time dependence of two armies' strengths A and B as a function of time, with the function depending only on A and B.In 1915 and 1916 during World War ...
Xploderz
Xploderz is a line of toy weapons made by The Maya Group to compete with Hasbro's Nerf Super Soaker line and marketed as a safer alternative to paintball. The concept is based on Orbeez, a girls' toy line also by The Maya Group that uses water-absorbent gel pellets, and hence is sometimes referred to as "Orbeez ball sh...
Ammonium pertechnetate
Ammonium pertechnetate is a chemical compound with the formula NH4TcO4. It is the ammonium salt of pertechnetic acid. The most common form uses 99Tc. The compound is readily soluble in aqueous solutions forming ammonium and pertechnetate ions.
Mathematics and Mechanics of Complex Systems
Mathematics and Mechanics of Complex Systems (MEMOCS) is a half-yearly peer-reviewed scientific journal founded by the International Research Center for the Mathematics and Mechanics of Complex Systems (M&MoCS) from Università degli Studi dell'Aquila, in Italy. It is published by Mathematical Sciences Publishers, and f...
ArcView 3.x
ArcView GIS was a geographic information system software product produced by ESRI. It was replaced by new product line, ArcGIS, in 2000. Regardless of it being discontinued and replaced, some users still find the software useful and hold the opinion it is a superior product for some tasks.
MPrest Systems
mPrest Systems is a private Israeli company, producing C4I applications. It serves commercial companies as well as military and law enforcement agencies.It is the developer of the Battle Management Control (BMC) system in Israel's Iron Dome system, a mobile air defense system designed to intercept all kinds of short-ra...
Investment style
Investment style, is a term in investment management (and more generally, in finance), referring to a characteristic investment philosophy employed by an investor. The classification extends across asset classes - equities, bonds or financial derivatives - and within each may further weigh factors such as leverage, mo...
Fibrosing cardiomyopathy
Fibrosing cardiomyopathy is a disease commonly caused by a heart failure in great apes, most specially the males. When fibrosing cardiomyopathy attacks a healthy heart, it comes with a bacterium or a virus that makes the muscles of the heart turn into fibrous bands which makes them unable to pump blood in the blood str...
Whole brain radiotherapy
Whole brain radiotherapy (WBRT) is a palliative option for patients with brain metastases that alleviates symptoms, decreases the use of corticosteroids needed to control tumor-associated edema, and potentially improves overall survival.
Feed horn
A feed horn (or feedhorn) is a small horn antenna used to couple a waveguide to e.g. a parabolic dish antenna or offset dish antenna for reception or transmission of microwave. A typical application is the use for satellite television reception with a satellite dish. In that case the feed horn can either be a separate ...
Swiss-suited playing cards
Parts of Swiss German speaking Switzerland have their own deck of playing cards referred to as Swiss-suited playing cards or Swiss-suited cards. They are mostly used for Jass, the "national card game" of Switzerland. The deck is related to the various German playing cards. Within Switzerland, these decks are called Ger...
Pseudo-Hurler polydystrophy
Pseudo-Hurler polydystrophy, also referred to as mucolipidosis III (ML III), is a lysosomal storage disease closely related to I-cell disease (ML II). This disorder is called Pseudo-Hurler because it resembles a mild form of Hurler syndrome, one of the mucopolysaccharide (MPS) diseases.
OpenTag
OpenTag is a DASH7 protocol stack and minimal Real-Time Operating System (RTOS), written in the C programming language. It is designed to run on microcontrollers or radio Systems on a Chip (SoC). OpenTag was engineered to be a very compact software package. However, with proper configuration, it can also run in any POS...
Fry readability formula
The Fry readability formula (or Fry readability graph) is a readability metric for English texts, developed by Edward Fry.The grade reading level (or reading difficulty level) is calculated by the average number of sentences (y-axis) and syllables (x-axis) per hundred words. These averages are plotted onto a specific g...
Triphenylmethyl hexafluorophosphate
Triphenylmethyl hexafluorophosphate (also triphenylcarbenium hexafluorophosphate, trityl hexafluorophosphate, or tritylium hexafluorophosphate) is an organic salt with the formula [(C6H5)3C]+[PF6]−, consisting of the triphenylcarbenium cation [(C6H5)3C]+ and the hexafluorophosphate anion [PF6]−.Triphenylmethyl hexafluo...
Termite-flg RNA motif
The Termite-flg RNA motif (also called tg-flg) is a conserved RNA structure identified by bioinformatics. Genomic sequences corresponding to Termite-flg RNAs have been identified only in uncultivated bacteria present in the termite hindgut. As of 2010 it has not been identified in the DNA of any cultivated species, and...
Superheterodyne receiver
A superheterodyne receiver, often shortened to superhet, is a type of radio receiver that uses frequency mixing to convert a received signal to a fixed intermediate frequency (IF) which can be more conveniently processed than the original carrier frequency. It was long believed to have been invented by US engineer Edwi...