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Toxalbumin
Toxalbumins are toxic plant proteins that disable ribosomes and thereby inhibit protein synthesis, producing severe cytotoxic effects in multiple organ systems. They are dimers held together by a disulfide bond and comprise a lectin (carbohydrate-binding protein) part which binds to the cell membrane and enables the toxin part to gain access to the cell contents. Toxalbumins are similar in structure to AB toxins found in cholera, tetanus, diphtheria, botulinum and others; and their physiological and toxic properties are similar to those of viperine snake venom.Toxalbumins were first described in about 1890 by Ludwig Brieger (1849–1919) and Sigmund Fraenkel (1868–1939), associates of the organic chemist Eugen Baumann. Brieger first used the term toxin.Toxalbumins notably are present in the plant families Leguminosae and Euphorbiaceae, occurring for instance in Robinia pseudoacacia, Abrus precatorius, Jatropha curcas, Croton gratissimus and Ricinus communis. Typical toxalbumins are abrin and ricin. Ingestion of seed containing toxalbumins is not necessarily fatal as the hard seed coat will withstand digestion, unless the seed has been pierced, as would happen in the making of necklaces, prayer beads or bracelets, and even then the toxalbumin is likely to be digested and thereby rendered harmless. Toxalbumins injected intravenously or subcutaneously or inhaled in powdered form, though, are highly toxic. A latent period of hours to days may follow with no sensible signs of distress, after which symptoms of nausea, vomiting and diarrhoea will appear, followed by delirium, seizures, coma, and death. From an evolutionary viewpoint, toxalbumins developed as a deterrent to consumption of seeds, foliage, bark and roots. Ripe fruits having a fleshy pulp are usually tasty and edible and lacking toxalbumins, encourage ingestion and the consequent distribution of seeds that have a coat sufficiently durable to survive a passage through the digestive system of a herbivore or fructivore.Being soluble in water, ricin is not present in extracted oils. As with most proteins it breaks down after heat treatment, such as cooking or steaming, and after the oil is extracted, the resulting pomace is often used as animal feed. There is an enormous variation in sensitivity to the toxin, and a lethal dose may be as little as two-millionths of body weight. Since ricin is a protein, antibodies may be produced by inoculation, allowing resistance of up to 800 times a normal lethal dose. Ricin has been used in assassinations, a notorious case being the use of a 1.53 mm pellet holding a few hundred millionths of a gram of ricin to kill the Bulgarian broadcaster, Georgi Markov, who died 4 days after being attacked.
Virtual POS
A Virtual POS (Point of Sale) is typically a web or windows application that can be used by card-accepting merchants to manually authorize card transactions. Most Payment Services Providers offer this type of functionality.
Einstein radius
The Einstein radius is the radius of an Einstein ring, and is a characteristic angle for gravitational lensing in general, as typical distances between images in gravitational lensing are of the order of the Einstein radius.
Engineering Heritage Awards
The Engineering Heritage Awards, formally known as the Engineering Heritage Hallmark Scheme, were established by the Institution of Mechanical Engineers (IMechE) in 1984 to identify and promote artefacts, locations, collections and landmarks of significant engineering importance.
Synthonia
Synthonia is short for Synthetic Ammonia, a product produced by chemical company I.C.I. ICI produced this product at one of its many plants in Billingham in the 20th century. Many local facilities took on the name due to sponsorship from this local firm including Billingham Synthonia F.C., Cricket Club and Synthonia Scout troop to name just a few.
Trumpet voluntary
A trumpet voluntary is a voluntary – a musical composition for the organ – played using the trumpet stop. Trumpet voluntaries are associated with the English Baroque era and usually consist of a slow introduction followed by a faster section with the right hand playing fanfare-like figures over a simple accompaniment in the left hand. In some instances, the trumpet stop is replaced by the cornet or a flute stop. Echo effects are also sometimes used.
Power-over-fiber
Power-over-fiber, or PoF, is a technology in which a fiber optic cable carries optical power, which is used as an energy source rather than, or as well as, carrying data. This allows a device to be remotely powered, while providing electrical isolation between the device and the power supply. Such systems can be used to protect the power supply from dangerous voltages such as from lightning, or to prevent voltage from the supply from igniting explosives. Power over fiber may also be useful in applications or environments where it is important to avoid the electromagnetic fields created by electricity flowing through copper wire, such as around delicate sensors or in sensitive military applications.
IRF9
Interferon regulatory factor 9 is a protein that in humans is encoded by the IRF9 gene, previously known as ISGF3G.
Interpunct
An interpunct ⟨·⟩, also known as an interpoint, middle dot, middot, centered dot or centred dot, is a punctuation mark consisting of a vertically centered dot used for interword separation in Classical Latin. (Word-separating spaces did not appear until some time between 600 and 800 CE.) It appears in a variety of uses in some modern languages and is present in Unicode as U+00B7 · MIDDLE DOT.
Apolipoprotein B deficiency
Apolipoprotein B deficiency is an autosomal dominant disorder resulting from a missense mutation which reduces the affinity of apoB-100 for the low-density lipoprotein receptor (LDL Receptor). This causes impairments in LDL catabolism, resulting in increased levels of low-density lipoprotein in the blood. The clinical manifestations are similar to diseases produced by mutations of the LDL receptor, such as familial hypercholesterolemia. Treatment may include, niacin or statin or ezetimibe.: 534 It is also known as "normotriglyceridemic hypobetalipoproteinemia".
Supramolecular chirality
In chemistry, the term supramolecular chirality is used to describe supramolecular assemblies that are non-superposable on their mirror images. Chirality in supramolecular chemistry implies the non-symmetric arrangement of molecular components in a non-covalent assembly. Chirality may arise in a supramolecular system if one of its component is chiral or if achiral components arrange in a non symmetrical way to produce a supermolecule that is chiral.
Hate (video games)
Hate (also threat, aggro, or enmity) is a mechanism used in many MMORPGs, as well as in some RPGs, by which mobs (enemies controlled by the system) prioritize which characters to attack. The player who generates the most hate on a mob will be preferentially attacked by that mob. The act of initiating such situation is called "getting aggro" or "pulling aggro."The character with the highest amount of hate relative to his allies has aggro. The threat list or threat table is the ordering of players by the amount of hate they have generated. Some mobs have fight mechanics that will ignore hate completely, change which player has aggro despite hate, or periodically reset the threat list, resetting all hate to 0.
Modal frame
A modal frame in music is "a number of types permeating and unifying African, European, and American song" and melody. It may also be called a melodic mode. "Mode" and "frame" are used interchangeably in this context without reference to scalar or rhythmic modes. Melodic modes define and generate melodies that are not determined by harmony, but purely by melody. A note frame, is a melodic mode that is atonic (without a tonic), or has an unstable tonic.
Spline interpolation
In the mathematical field of numerical analysis, spline interpolation is a form of interpolation where the interpolant is a special type of piecewise polynomial called a spline. That is, instead of fitting a single, high-degree polynomial to all of the values at once, spline interpolation fits low-degree polynomials to small subsets of the values, for example, fitting nine cubic polynomials between each of the pairs of ten points, instead of fitting a single degree-ten polynomial to all of them. Spline interpolation is often preferred over polynomial interpolation because the interpolation error can be made small even when using low-degree polynomials for the spline. Spline interpolation also avoids the problem of Runge's phenomenon, in which oscillation can occur between points when interpolating using high-degree polynomials.
The Journal of Defense Modeling and Simulation
The Journal of Defense Modeling and Simulation is a quarterly peer-reviewed academic journal that covers the field of engineering, especially modeling and simulation as it relates to the military and defense. The editor-in-chief is Jerry M. Couretas (Lockheed Martin Corporation). It was established in 2004 and is currently published by SAGE Publications on behalf of the Society for Modeling and Simulation International.
Oracle TopLink
Oracle TopLink is a mapping and persistence framework for Java developers. TopLink is produced by Oracle and is a part of Oracle's OracleAS, WebLogic, and OC4J servers. It is an object-persistence and object-transformation framework. TopLink provides development tools and run-time functionalities that ease the development process and help increase functionality. Persistent object-oriented data is stored in relational databases which helps build high-performance applications. Storing data in either XML (Extensible Markup Language) or relational databases is made possible by transforming it from object-oriented data.
Graffiti 2
"Graffiti 2 Powered by Jot" was introduced in 2003 as a revised version of the original Palm OS handwriting system Graffiti. In January 2003, PalmSource announced the change explaining that Graffiti 2 was based on Jot by Communication Intelligence Corporation (CIC) and would replace the original version of Graffiti. Graffiti 2 made its debut in Palm OS 4.1.2 for Motorola DragonBall-based handhelds and in Palm OS Garnet 5.2 for ARM-based ones.
Heptaprenyl diphosphate synthase
In enzymology, a heptaprenyl diphosphate synthase (EC 2.5.1.30) is an enzyme that catalyzes the chemical reaction (2E,6E)-farnesyl diphosphate + 4 isopentenyl diphosphate ⇌ 4 diphosphate + all-trans-heptaprenyl diphosphateThus, the two substrates of this enzyme are (2E,6E)-farnesyl diphosphate and isopentenyl diphosphate, whereas its two products are diphosphate and all-trans-heptaprenyl diphosphate. This enzyme belongs to the family of transferases, specifically those transferring aryl or alkyl groups other than methyl groups. The systematic name of this enzyme class is (2E,6E)-farnesyl-diphosphate:isopentenyl-diphosphate farnesyltranstransferase (adding 4 isopentenyl units). Other names in common use include all-trans-heptaprenyl-diphosphate synthase, heptaprenyl pyrophosphate synthase, and heptaprenyl pyrophosphate synthetase. This enzyme participates in biosynthesis of steroids.
Sauvignon blanc
Sauvignon blanc is a green-skinned grape variety that originates from the city of Bordeaux in France. The grape most likely gets its name from the French words sauvage ("wild") and blanc ("white") due to its early origins as an indigenous grape in South West France. It is possibly a descendant of Savagnin. Sauvignon blanc is planted in many of the world's wine regions, producing a crisp, dry, and refreshing white varietal wine. The grape is also a component of the famous dessert wines from Sauternes and Barsac. Sauvignon blanc is widely cultivated in France, Chile, Romania, Canada, Australia, New Zealand, South Africa, Bulgaria, the states of Oregon, Washington, and California in the US. Some New World Sauvignon blancs, particularly from California, may also be called "Fumé Blanc", a marketing term coined by Robert Mondavi in reference to Pouilly-Fumé.
Radiofrequency coil
Radiofrequency coils (RF coils) are the receivers, and sometimes also the transmitters, of radiofrequency (RF) signals in equipment used in magnetic resonance imaging (MRI).
New York City Subway nomenclature
New York City Subway nomenclature is the terminology used in the New York City Subway system as derived from railroading practice, historical origins of the system, and engineering, publicity, and legal usage. Important terms include lines, or individual sections of subway, like the BMT Brighton Line; services, like the B, which is a single train route along several lines; and stations, such as Coney Island–Stillwell Avenue, which connects multiple lines and services.
Gravitational wave background
The gravitational wave background (also GWB and stochastic background) is a random background of gravitational waves permeating the Universe, which is detectable by gravitational-wave experiments, like pulsar timing arrays. The signal may be intrinsically random, like from stochastic processes in the early Universe, or may be produced by an incoherent superposition of a large number of weak independent unresolved gravitational-wave sources, like supermassive black-hole binaries. Detecting the gravitational wave background can provide information that is inaccessible by any other means, about astrophysical source population, like hypothetical ancient supermassive black-hole binaries, and early Universe processes, like hypothetical primordial inflation and cosmic strings.
Katydid sequence
The Katydid sequence is a sequence of numbers first defined in Clifford A. Pickover's book Wonders of Numbers (2001).
Rover Scout
Rover Scouts, Rovers, Rover Scouting or Rovering is a program associated with some Scouting organizations for adult men and women. A group of Rovers is called a 'Rover Crew'. Rovers was originated by The Boy Scouts Association in the United Kingdom in 1918 to provide a program for young men who had grown up beyond the age range of the Boy Scouts. It was adopted by many other Scouting organisations.
Social ontology
Social ontology is a domain-specific branch of ontology, the philosophical study of being and existence, which studies the nature and properties of the social world. Social ontology deals with examining the various entities in the world arising from social interaction.Notable contemporary philosophers who study social ontology include Margaret Gilbert, Amie Thomasson, Tony Lawson and Ruth Millikan.
Methylnitronitrosoguanidine
Methylnitronitrosoguanidine (MNNG or MNG, NTG when referred to colloquially as nitrosoguanidine) is a biochemical tool used experimentally as a carcinogen and mutagen. It acts by adding alkyl groups to the O6 of guanine and O4 of thymine, which can lead to transition mutations between GC and AT. These changes do not cause a heavy distortion in the double helix of DNA and thus are hard to detect by the DNA mismatch repair system.
Gibbon ape leukemia virus
Gibbon-ape leukemia virus (GaLV) is an oncogenic, type C retrovirus that has been isolated from primate neoplasms, including the white-handed gibbon and woolly monkey. The virus was identified as the etiological agent of hematopoietic neoplasms, leukemias, and immune deficiencies within gibbons in 1971, during the epidemic of the late 1960s and early 1970s. Epidemiological research into the origins of GaLV has developed two hypotheses for the virus' emergence. These include cross-species transmission of the retrovirus present within a species of East Asian rodent or bat, and the inoculation or blood transfusion of a MbRV-related virus into captured gibbons populations housed at medical research institutions. The virus was subsequently identified in captive gibbon populations in Thailand, the US and Bermuda.GaLV is transmitted horizontally by contact with excretory products of infected gibbons. However, it is also hypothesised to be vertically transmitted via parent-progeny transmission. Phylogenetic analysis have revealed 7 strains of GaLV; GaLV-SF, GaLV-SEATO, GaLV-BR, GALV-X, GaLV-Mar, GaLV-H and SSV, which have emerged as a result of selection pressures from the host immune system. Recently, full genome sequences of these strains have been made available which broadens the possibilities for GaLV's utility as a viral vector in gene transfer.
Hybrid wood
Hybrid wood or wood hybrid systems (WHS) is a multilayer composite material, composed on the surface of a skin made of composite wood (WPC) adhering to an underneath structural core, in general aluminum. Invented in Japan in 2008, this technological evolution is based on wood composite technology which was conceived in 1972 by Sadao Nishibori and patented in 1983 to substitute threatened exotic wood species. WHS are not fibre-reinforced plastic (FRP).
Toyota Limo
The Toyota Limo is an automobile offered by Toyota in Southeast Asian markets designed for taxicab use, primarily in Indonesia, Philippines, Thailand and Vietnam. It is a robust low cost, low maintenance variant designed specifically for taxi fleet, with longer service intervals that may be yearly or every 100,000 kilometres (62,000 mi). It is essentially a scaled-down variant of the base model Vios and Corolla that lacks any extra equipment. It still retains the same engine of either the Vios or Corolla, but with a specially tuned ECU for more fuel efficient and economical use and softer suspension for comfort.
Scenario paintball
Scenario paintball is a colloquialism used to represent a diverse array of paintball events that encompass many themes that may include historical re-enactments, movies, current pop culture, futuristic or video game simulations, and more. Others have no theme at all. They frequently feature game mechanics such as "medics" and "snipers" and "helicopters" carried out through various simulations. The common denominator for this type of play is anywhere from 75 to 5000 players, with at least 6 hours of continuous play. These events average 12 hours of game play across a weekend in 2 major play periods. The longest and most challenging events run 24 hours straight with no breaks, with elite players covering ultra marathon distances. Instead of playing on a single field at a venue, all fields are combined into one continuous playable area. To further enhance the theme of a game, field locations may be named for important story locations, and props of various sorts are added to the game. These may be objects that players collect for points, or even vehicles that take part in the fighting, like paintball tanks. Players may don costumes specific to the theme, such as historic military uniforms or other costumes. These events are best broken into sub-categories.
Global Genes
Global Genes is a global non-profit advocacy organization for individuals and families fighting rare and genetic diseases. The organization is associated with a blue denim "Genes Ribbon" that is intended to raise awareness of patients affected by rare and genetic diseases. Global Genes uses a simple concept of "jeans and genes" to promote awareness of rare disease; its slogan is "Allies in Rare Disease".
P-Modeling Framework
P-Modeling Framework is a package of guidelines, methods, tools and templates for the development process improvement. P-Modeling framework can be integrated into any other SDLC in use, e.g., MSF Agile, MSF CMMI, RUP, etc.
Apolipoprotein E
Apolipoprotein E (Apo-E) is a protein involved in the metabolism of fats in the body of mammals. A subtype is implicated in the Alzheimer's disease and cardiovascular diseases. It is encoded in humans by the gene APOE.
Novelogue
A novelogue is a story told almost exclusively through dialogue. Character descriptions, and settings are minimally provided.
Castle Death
Castle Death is the seventh book in the Lone Wolf book series created by Joe Dever.
Lazy systematic unit testing
Lazy Systematic Unit Testing is a software unit testing method based on the two notions of lazy specification, the ability to infer the evolving specification of a unit on-the-fly by dynamic analysis, and systematic testing, the ability to explore and test the unit's state space exhaustively to bounded depths. A testing toolkit JWalk exists to support lazy systematic unit testing in the Java programming language.
How now brown cow
"How now brown cow" () is a phrase used in elocution teaching to demonstrate rounded vowel sounds. Each "ow" in the phrase represents the diphthong /aʊ/. English orthography also uses the homophonic spelling "ou" to represent this diphthong in words like "noun" and "cloud". The use of the phrase "how now brown cow" in teaching elocution can be traced back to at least 1926.The phrase how now itself is an archaic greeting or interrogative expression.
Pan pizza
Pan pizza is a pizza baked in a deep dish pan or sheet pan. Italian tomato pie, Sicilian pizza, Chicago-style pizza and Detroit-style pizza may be considered forms of pan pizza. Pan pizza also refers to the thick style popularized by Pizza Hut in the 1960s. The bottoms and sides of the crust become fried and crispy in the oil used to coat the pan.
Modigliani–Miller theorem
The Modigliani–Miller theorem (of Franco Modigliani, Merton Miller) is an influential element of economic theory; it forms the basis for modern thinking on capital structure. The basic theorem states that in the absence of taxes, bankruptcy costs, agency costs, and asymmetric information, and in an efficient market, the enterprise value of a firm is unaffected by how that firm is financed. This is not to be confused with the value of the equity of the firm. Since the value of the firm depends neither on its dividend policy nor its decision to raise capital by issuing shares or selling debt, the Modigliani–Miller theorem is often called the capital structure irrelevance principle.
1,3,5-Trinitrobenzene
1,3,5-Trinitrobenzene is an organic compound with the formula C6H3(NO2)3. It is one of three trinitrated benzene-derivatives. A pale yellow solid, the compound is highly explosive.
Phenomenalism
In metaphysics, phenomenalism is the view that physical objects cannot justifiably be said to exist in themselves, but only as perceptual phenomena or sensory stimuli (e.g. redness, hardness, softness, sweetness, etc.) situated in time and in space. In particular, some forms of phenomenalism reduce all talk about physical objects in the external world to talk about bundles of sense data.
Chelates in animal nutrition
Chelates in animal feed is jargon for metalloorganic compounds added to animal feed. The compounds provide sources of various metals that improve the health or marketability of the animal. Typical metals salts are derived from cobalt, copper, iron, manganese, and zinc. The objective of supplementation with trace minerals is to avoid a variety of deficiency diseases. Trace minerals carry out key functions in relation to many metabolic processes, most notably as cofactors for enzymes and hormones, and are essential for optimum health, growth and productivity. For example, supplementary minerals help ensure good growth, bone development, feathering in birds, hoof, skin and hair quality in mammals, enzyme structure and functions, and appetite. Deficiency of trace minerals affect many metabolic processes and so may be manifested by different symptoms, such as poor growth and appetite, reproductive failures, impaired immune responses, and general ill-thrift. From the 1950s to the 1990s most trace mineral supplementation of animal diets was in the form of inorganic minerals, and these largely eradicated associated deficiency diseases in farm animals. The role in fertility and reproductive diseases of dairy cattle highlights that organic forms of Zn are retained better than inorganic sources and so may provide greater benefit in disease prevention, notably mastitis and lameness.
Minkowski Portal Refinement
The Minkowski Portal Refinement collision detection algorithm is a technique for determining whether two convex shapes overlap. The algorithm was created by Gary Snethen in 2006 and was first published in Game Programming Gems 7. The algorithm was used in Tomb Raider: Underworld and other games created by Crystal Dynamics and its sister studios within Eidos Interactive.
Dissociation (rhetoric)
Dissociation is a rhetorical device in which the speaker separates a notion considered by the audience to form a unitary concept into two new notions.Kathryn Olson, Director of the Rhetorical Leadership Program at the University of Wisconsin-Milwaukee, explains that by doing this, the speaker fundamentally changes the reality of the thought system in question by creating a disjunction between what was an integrated concept to begin with. According to M.A. van Rees, dissociation is a two step process of distinction and definition: distinction divides a single concept into two new notions for the audience and definition replaces the original term or concept with two new terms, each with their own definitions.This process is rhetorically effective when a rhetor presents a particular concept in a light that is favorable to his/her interests by dissociating a term with any notions that do not serve the rhetor's purpose. According to Øyvind Ihlen, the rhetor attempts to "remove an incompatibility that arises from confrontation between propositions" to better affect an audience's beliefs. Defining a situation through dissociation, when done correctly, authoritatively declares the two resulting concepts distinct and rules out any further argument.
Flash Element TD
Flash Element TD is a Flash-based tower defense browser game created by American developer David Scott and launched in January 2007. The game had been played over 140 million times as of March 2009.
Itruvone
Itruvone (INN; developmental code name PH10), also known as pregn-4-en-20-yn-3-one, is a vomeropherine which is under development by VistaGen Therapeutics as a nasal spray for the treatment of major depressive disorder.
FMRFamide
FMRFamide (H-Phe-Met-Arg-Phe-NH2) is a neuropeptide from a broad family of FMRFamide-related peptides (FaRPs) all sharing an -RFamide sequence at their C-terminus. First identified in Hard clam (Mercenaria mercenaria), it is thought to play an important role in cardiac activity regulation. Several FMRFamide related peptides are known, regulating various cellular functions and possessing pharmacological actions, such as anti-opiate effects. In Mercenaria mercenaria, FMRFamide has been isolated and demonstrated to increase both the force and frequency of the heartbeat through a biochemical pathway that is thought to involve the increase of cytoplasmic cAMP in the ventricular region.FMRFamide is an important neuropeptide in several phyla such as Insecta, Nematoda, Mollusca, and Annelida. It is the most abundant neuropeptide in endocrine cells of insect alimentary tracts along with allatostatin and tachykinin families, however the neuropeptide’s function is not known. Generally, the neuropeptide is encoded by several genes such as flp-1 through flp-22 in C. elegans. The common precursor of the FaRPs is modified to yield many different neuropeptides all having the same FMRFamide sequence. Moreover, these peptides are not functionally redundant.In invertebrates, the FMRFamide-related peptides are known to affect heart rate, blood pressure, gut motility, feeding behaviour and reproduction. In vertebrates such as mice, they are known to affect opioid receptors resulting in elicitation of naloxone-sensitive antinociception and reduction of morphine-induced antinociception.Detection of this neuropeptide is important because its expression lays down the foundation of the CNS in the early stages of development in invertebrates. In recent years, neuromodulatory actions of FMRFamide in invertebrates have become more apparent. This is, in part, due to the extensive studies done on the Planorbid and Lymnaeid families of pond snails.
Isotopes of rutherfordium
Rutherfordium (104Rf) is a synthetic element and thus has no stable isotopes. A standard atomic weight cannot be given. The first isotope to be synthesized was either 259Rf in 1966 or 257Rf in 1969. There are 16 known radioisotopes from 253Rf to 270Rf (3 of which, 266Rf, 268Rf, and 270Rf, are unconfirmed) and several isomers. The longest-lived isotope is 267Rf with a half-life of 48 minutes, and the longest-lived isomer is 263mRf with a half-life of 8 seconds.
Tunicamycin
Tunicamycin is a mixture of homologous nucleoside antibiotics that inhibits the UDP-HexNAc: polyprenol-P HexNAc-1-P family of enzymes. In eukaryotes, this includes the enzyme GlcNAc phosphotransferase (GPT), which catalyzes the transfer of N-acetylglucosamine-1-phosphate from UDP-N-acetylglucosamine to dolichol phosphate in the first step of glycoprotein synthesis. Tunicamycin blocks N-linked glycosylation (N-glycans) and treatment of cultured human cells with tunicamycin causes cell cycle arrest in G1 phase. It is used as an experimental tool in biology, e.g. to induce unfolded protein response. Tunicamycin is produced by several bacteria, including Streptomyces clavuligerus and Streptomyces lysosuperificus.
GeForce 500 series
A refresh of the Fermi based GeForce 400 series, the GeForce 500 series is a series of graphics processing units developed by Nvidia, first released on November 9, 2010 with the GeForce GTX 580. Its direct competitor was AMD's Radeon HD 6000 Series; they were launched approximately a month apart.
Nevus lipomatosus superficialis
Nevus lipomatosus (cutaneous) superficialis (NLS or NLCS, also known as "Nevus lipomatosis of Hoffman and Zurhelle") is characterized by soft, yellowish papules or cerebriform plaques, usually of the buttock or thigh, less often of the ear or scalp, with a wrinkled rather than warty surface.: 625  It is usually congenital in origin or appears within the first three decades.A pedunculated lipofibroma is a solitary variant of nevus lipomatosus superficialis. It usually appears in adult life, and usually on the axilla, knee, ear, arm, scalp and the lower trunk.
Deterministic context-free language
In formal language theory, deterministic context-free languages (DCFL) are a proper subset of context-free languages. They are the context-free languages that can be accepted by a deterministic pushdown automaton. DCFLs are always unambiguous, meaning that they admit an unambiguous grammar. There are non-deterministic unambiguous CFLs, so DCFLs form a proper subset of unambiguous CFLs. DCFLs are of great practical interest, as they can be parsed in linear time, and various restricted forms of DCFGs admit simple practical parsers. They are thus widely used throughout computer science.
Maritime drug trafficking in Latin America
Maritime drug trafficking in Latin America is the primary mean of transportation of illegal drugs produced in this region to global consumer markets. Cocaine is the primary illegal drug smuggled through maritime routes because all of its cultivation and production is settled in the Andean region of South America.The smuggling of drugs through the sea is a security problem for all the countries of the region. Drug trafficking organizations have developed various complex systems for the transportation and distribution of illegal drugs, where several countries in the region serve as points of contact for the distribution of illegal products by land, air or sea.
Nicholson Guides
The Nicholson Guides are a set of books originally published by Robert Nicholson Publications, then jointly by Bartholomew and the Ordnance Survey, and now by HarperCollins, as guides to the navigable and un-navigable waterways of England and Wales (and, more recently, Scotland).
Lauricella's theorem
In the theory of orthogonal functions, Lauricella's theorem provides a condition for checking the closure of a set of orthogonal functions, namely: Theorem. A necessary and sufficient condition that a normal orthogonal set {uk} be closed is that the formal series for each function of a known closed normal orthogonal set {vk} in terms of {uk} converge in the mean to that function.
Buchsbaum ring
In mathematics, Buchsbaum rings are Noetherian local rings such that every system of parameters is a weak sequence. A sequence (a1,⋯,ar) of the maximal ideal m is called a weak sequence if m⋅((a1,⋯,ai−1):ai)⊂(a1,⋯,ai−1) for all i They were introduced by Jürgen Stückrad and Wolfgang Vogel (1973) and are named after David Buchsbaum. Every Cohen–Macaulay local ring is a Buchsbaum ring. Every Buchsbaum ring is a generalized Cohen–Macaulay ring.
One-pocket
One-pocket is a pool game. Only one pocket for each player is used in this game, unlike other games played on a pool table where any pocket can be used to score object balls. The object of the game is to score points. A point is made when a player pockets any object ball into their designated pocket. The winner is the first to score an agreed-upon number of points (usually 8). One-pocket is similar to straight pool in that a player can shoot at any object ball regardless of its color or number. Unlike straight pool, however, a shooter does not need to call their shots.
Introduction to evolution
In biology, evolution is the process of change in all forms of life over generations, and evolutionary biology is the study of how evolution occurs. Biological populations evolve through genetic changes that correspond to changes in the organisms' observable traits. Genetic changes include mutations, which are caused by damage or replication errors in organisms' DNA. As the genetic variation of a population drifts randomly over generations, natural selection gradually leads traits to become more or less common based on the relative reproductive success of organisms with those traits.
Strut channel
Strut channel, often referred to colloquially by one of several manufacturer trade names, is a standardized formed structural system used in the construction and electrical industries for light structural support, often for supporting wiring, plumbing, or mechanical components such as air conditioning or ventilation systems.
Blautia obeum
Blautia obeum is a species of anaerobic, gram-positive bacteria found in the gut.It has been shown that B. obeum along with other relevant taxa play an important role both in the recovery process from Vibrio cholerae infection and microbiota maturation in children. Moreover, experiments in model mice show that B. obeum strain AI-2 reduces the pathogenicity of V. cholerae. The data show that the expression of quorum sensing autoinducers by B. obeum is increased in V. cholera infections and they repress the expression of several V. cholera virulence factors.
Parity measurement
Parity measurement (also referred to as Operator measurement) is a procedure in Quantum information science used for error detection in quantum qubits. A parity measurement checks the equality of two qubits to return a true or false answer, which can be used to determine whether a correction needs to occur. Additional measurements can be made for a system greater than two qubits. Because parity measurement does not measure the state of singular bits but rather gets information about the whole state, it is considered an example of a joint measurement. Joint measurements do not have the consequence of destroying the original state of a qubit as normal quantum measurements do. Mathematically speaking, parity measurements are used to project a state into an eigenstate of an operator and to acquire its eigenvalue.Parity measurement is an essential concept of Quantum Error Correction. From the parity measurement, an appropriate unitary operation can be applied to correct the error without knowing the beginning state of the qubit.
Mepolizumab
Mepolizumab, sold under the brand name Nucala, is a humanized monoclonal antibody used for the treatment of severe eosinophilic asthma, eosinophilic granulomatosis, and hypereosinophilic syndrome (HES). It recognizes and blocks interleukin-5 (IL-5), a signalling protein of the immune system. The most common side effects include headache, injection site reactions, and back pain.
Recoil pad
A recoil pad is a piece of rubber, foam, leather, or other soft material usually attached to the buttstock of a rifle or shotgun. Recoil pads may also be worn around the shoulder with straps, placing the soft material between the buttstock and the shoulder of the person firing the gun. The purpose of this device is to provide additional padding between the typically hard buttstock surface and the user's shoulder, to reduce the amount of felt recoil of the firearm, and to prevent slippage on the shooter's clothing while aiming.
DPM2
Dolichol phosphate-mannose biosynthesis regulatory protein is a protein that in humans is encoded by the DPM2 gene.
Set Theory: An Introduction to Independence Proofs
Set Theory: An Introduction to Independence Proofs is a textbook and reference work in set theory by Kenneth Kunen. It starts from basic notions, including the ZFC axioms, and quickly develops combinatorial notions such as trees, Suslin's problem, ◊, and Martin's axiom. It develops some basic model theory (rather specifically aimed at models of set theory) and the theory of Gödel's constructible universe L. The book then proceeds to describe the method of forcing.
DNA-formamidopyrimidine glycosylase
DNA-formamidopyrimidine glycosylase (EC 3.2.2.23, Fapy-DNA glycosylase, deoxyribonucleate glycosidase, 2,6-diamino-4-hydroxy-5N-formamidopyrimidine-DNA glycosylase, 2,6-diamino-4-hydroxy-5(N-methyl)formamidopyrimidine-DNA glycosylase, formamidopyrimidine-DNA glycosylase, DNA-formamidopyrimidine glycosidase, Fpg protein) is an enzyme with systematic name DNA glycohydrolase (2,6-diamino-4-hydroxy-5-(N-methyl)formamidopyrimide releasing). FPG is a base excision repair enzyme which recognizes and removes a wide range of oxidized purines from correspondingly damaged DNA. It was discovered by Zimbabwean scientist Christopher J. Chetsanga in 1975.This enzyme catalyses the following chemical reaction Hydrolysis of DNA containing ring-opened 7-methylguanine residues, releasing 2,6-diamino-4-hydroxy-5-(N-methyl)formamidopyrimidineThis enzyme participates in processes leading to recovery from mutagenesis and/or cell death by alkylating agents.
Capture the flag
Capture the flag (CTF) is a traditional outdoor sport where two or more teams each have a flag (or other markers) and the objective is to capture the other team's flag, located at the team's "base" (or hidden or even buried somewhere in the territory), and bring it safely back to their own base. Enemy players can be "tagged" by players when out of their home territory and, depending on the rules, they may be out of the game, become members of the opposite team, be sent back to their own territory, be frozen in place, or be sent to "jail" until freed by a member of their own team.
Multirotor
A multirotor or multicopter is a rotorcraft with more than two lift-generating rotors. An advantage of multirotor aircraft is the simpler rotor mechanics required for flight control. Unlike single- and double-rotor helicopters which use complex variable pitch rotors whose pitch varies as the blade rotates for flight stability and control, multirotors often use fixed-pitch blades; control of vehicle motion is achieved by varying the relative speed of each rotor to change the thrust and torque produced by each.
Monster chess
Monster chess—or Super King chess—is a chess variant in which the White side has only a king and four pawns to fight against all the pieces of the Black side. All the rules of chess apply, except that White makes two successive moves per turn. The white king can move into check on the first move of the turn and move out of check during the second move. The goal for both sides is to checkmate the opponent's king.
Letterpress printing
Letterpress printing is a technique of relief printing for producing many copies by repeated direct impression of an inked, raised surface against individual sheets of paper or a continuous roll of paper. A worker composes and locks movable type into the "bed" or "chase" of a press, inks it, and presses paper against it to transfer the ink from the type, which creates an impression on the paper.
Silver sand
Silver sand is a fine white sand used in gardening. It consists largely of quartz particles that are not coated with iron oxides. Iron oxides colour sand from yellows to rich browns. Silver sand is also used as a constituent of mortar for laying light coloured pavers.
Silent Circle Instant Messaging Protocol
The Silent Circle Instant Message Protocol (SCIMP) was an encryption scheme that was developed by Vincent Moscaritolo of Silent Circle. It enabled private conversation over instant message transports such as XMPP (Jabber).SCIMP provided encryption, perfect forward secrecy and message authentication. It also handled negotiating the shared secret keys.
Black armband
In Western culture, a black armband signifies that the wearer is in mourning or wishes to identify with the commemoration of a family member, friend, comrade or team member who has died. This use is particularly common in the first meeting following the loss of a member. In sport, especially association football, cricket, and Australian rules football, players will often wear black armbands following the death of a former player or manager.Black armbands are also worn by uniformed organizations, such as the police, fire services or military, at the funeral of a comrade or on the death of a sovereign.
Builder pattern
The builder pattern is a design pattern designed to provide a flexible solution to various object creation problems in object-oriented programming. The intent of the builder design pattern is to separate the construction of a complex object from its representation. It is one of the Gang of Four design patterns.
Ascorbyl glucoside
Ascorbyl glucoside (AA-2G) is an ascorbic acid derivative that contains at least one glycosyl group. Ascorbyl glucoside is commonly used in cosmetic products to administer vitamin C topically. Ascorbyl glucoside exhibits superior stability and penetration ability compared to ascorbyl phosphate salts, but the rate of its in vivo conversion to ascorbic acid is not known. Ascorbyl glucosides such as AA-2G, like many other derivatives of the ascorbic acid, show antiscorbutic effects. It is also sometimes used in skin whitening products.Ascorbyl glucoside is synthesized through a glycosylation process catalyzed by glycosyltransferase-class enzymes.
Proliferating angioendotheliomatosis
Proliferating Angioendotheliomatosis has historically been divided into two groups, (1) a reactive, involuting type and (2) a malignant, rapidly fatal type.: 598 The reactive involuting type, reactive Angioendotheliomatosis is an rare cutaneous condition characterized histologically by a dense proliferation of small capillaries, and occurs in people with various diseases including subacute bacterial endocarditis and end-stage atherosclerotic disease. These people present with various skin lesions and rashes - most commonly on the thighs. Treatment aimed at the underlying condition hastens the resolution of the lesions.
ATM card
An ATM card is a dedicated payment card card issued by a financial institution (i.e. a bank) which enables a customer to access their financial accounts via its and others' automated teller machines (ATMs) and, in some countries, to make approved point of purchase retail transactions. ATM cards are not credit cards or debit cards, however most credit and debit cards can also act as ATM cards and that is the most common way that banks issue cards since the 2010s.
MILNET
In computer networking, MILNET (fully Military Network) was the name given to the part of the ARPANET internetwork designated for unclassified United States Department of Defense traffic.MILNET was physically separated from the ARPANET in 1983. The ARPANET remained in service for the academic research community, but direct connectivity between the networks was severed for security reasons. Gateways relayed electronic mail between the two networks. BBN Technologies built and managed both the MILNET and the ARPANET and the two networks used very similar technology. It is also known as "Military Net."During the 1980s the MILNET expanded as part of the Defense Data Network, a worldwide set of military networks running at different security levels. In the 1990s, MILNET became the NIPRNET.
ZCCHC2
Zinc finger CCHC domain-containing protein 2 is a protein that in humans is encoded by the ZCCHC2 gene.
3-Methylfuran
3-Methylfuran is an organic compound with the formula C5H6O. It is formed from the gas-phase reaction of hydroxyl radical with isoprene.In mice, it is toxic by inhalation.
The Oxford Companion to Wine
The Oxford Companion to Wine (OCW) is a book in the series of Oxford Companions published by Oxford University Press. The book provides an alphabetically arranged reference to wine, compiled and edited by Jancis Robinson, with contributions by several wine writers including Hugh Johnson, Michael Broadbent, and James Halliday, and experts such as viticulturist Richard Smart and oenologist Pascal Ribéreau-Gayon.The contract for the first edition was signed in 1988, and after five years of writing it was published in 1994. The second edition was published in 1999 and the third in 2006. The fourth edition, published in 2015, contains nearly 4,104 entries (300 of them completely new) over about 850 pages with contributions from 187 people. David Williams in The Guardian, wrote that the new edition "offer[s] a snapshot of the more significant changes in wine in the past nine years."Entries for individuals are limited by the strict criteria of "a long track record" and "global significance"; hence French worldwide consulting oenologist Michel Rolland and even former Soviet leader Mikhail Gorbachev have entries, while California oenologist Helen Turley is omitted. Also, there is no entry for Jancis Robinson herself.
Control and indicating equipment
Control and indicating equipment is equipment for receiving, processing, controlling, indicating and initiating the onward transmission of information as used in fire alarm systems. The fire detection and fire alarm system subcommittee of ISO/TC 21, Equipment for Fire Protection and Fire Fighting, had oversight for development of five standards covering detectors, control and indicating equipment. ISO 7240-2:3003 specifies requirements, test methods and performance criteria for control and indicating equipment (c.i.e.) for use in fire detection and fire alarm systems installed in buildings.
Climate of Paris
Paris has a typical oceanic climate (Köppen climate classification: Cfb) which is affected by the North Atlantic Current. The overall climate throughout the year is mild and moderately wet. Summer days are usually warm and pleasant with average temperatures between 15 and 25 °C (59 and 77 °F), and a fair amount of sunshine. Each year, however, there are a few days when the temperature rises above 32 °C (90 °F). Longer periods of more intense heat sometimes occur, such as the heat wave of 2003 when temperatures exceeded 30 °C (86 °F) for weeks, reached 40 °C (104 °F) on some days and seldom cooled down at night. Spring and autumn have, on average, mild days and cool nights but are changing and unstable. Surprisingly warm or cool weather occurs frequently in both seasons. In winter, sunshine is scarce; days are cool, nights cold but generally above freezing with low temperatures around 3 °C (37 °F). Light night frosts are however quite common, but the temperature will dip below −5 °C (23 °F) for only a few days a year. Snow falls every year, but rarely stays on the ground. The city sometimes sees light snow or flurries with or without accumulation. Paris has an average annual precipitation of 641 mm (25.2 in), and experiences light rainfall distributed evenly throughout the year. However the city is known for intermittent abrupt heavy showers.
Backup battery
A backup battery provides power to a system when the primary source of power is unavailable. Backup batteries range from small single cells to retain clock time and date in computers, up to large battery room facilities that power uninterruptible power supply systems for large data centers. Small backup batteries may be primary cells; rechargeable backup batteries are kept charged by the prime power supply.
Trapezoidal thread form
Trapezoidal thread forms are screw thread profiles with trapezoidal outlines. They are the most common forms used for leadscrews (power screws). They offer high strength and ease of manufacture. They are typically found where large loads are required, as in a vise or the leadscrew of a lathe. Standardized variations include multiple-start threads, left-hand threads, and self-centering threads (which are less likely to bind under lateral forces).
Identification of trees of the northeastern United States
Regional floras typically contain complete dichotomous keys for identification of trees and other plants to species (e.g. Manual of vascular plants of northeastern United States and adjacent Canada by Henry A. Gleason and Arthur Cronquist). The following guide originates from Our Native Trees and How to Identify Them by Harriet L. Keeler and applies to some flowering trees which are indigenous to the region extending from the Atlantic Ocean to the Rocky Mountains and from Canada to the northern boundaries of the southern states, together with a few well-known and naturalized foreign trees. This guide excludes conifers and is not an exhaustive list of all trees known to occur in the region.
22° halo
A 22° halo is an atmospheric optical phenomenon that consists of a halo with an apparent radius of approximately 22° around the Sun or Moon. When visible around the Moon, it is also known as a moon ring, storm ring, or winter halo. It forms as sunlight or moonlight is refracted by millions of hexagonal ice crystals suspended in the atmosphere. Its radius is roughly the length of an outstretched hand at arm's length.
Ekman spiral
The oceanic, wind driven Ekman spiral is the result of a force balance created by a shear stress force, Coriolis force and the water drag. This force balance gives a resulting current of the water different from the winds. In the ocean, there are two places where the Ekman spiral can be observed. At the surface of the ocean, the shear stress force corresponds with the wind stress force. At the bottom of the ocean, the shear stress force is created by friction with the ocean floor. This phenomenon was first observed at the surface by the Norwegian oceanographer Fridtjof Nansen during his Fram expedition. He noticed that icebergs did not drift in the same direction as the wind. His student, the Swedish oceanographer Vagn Walfrid Ekman, was the first person to physically explain this process.
Surface features of Venus
The surface of Venus is dominated by geologic features that include volcanoes, large impact craters, and aeolian erosion and sedimentation landforms. Venus has a topography reflecting its single, strong crustal plate, with a unimodal elevation distribution (over 90% of the surface lies within an elevation of -1.0 and 2.5 km) that preserves geologic structures for long periods of time. Studies of the Venusian surface are based on imaging, radar, and altimetry data collected from several exploratory space probes, particularly Magellan, since 1961 (see Venus Exploration). Despite its similarities to Earth in size, mass, density, and possibly composition, Venus has a unique geology that is unlike Earth's. Although much older than Earth's, the surface of Venus is relatively young compared to other terrestrial planets (<500 million years old), possibly due to a global-scale resurfacing event that buried much of the previous rock record. Venus is believed to have approximately the same bulk elemental composition as Earth, due to the physical similarities, but the exact composition is unknown. The surface conditions on Venus are more extreme than on Earth, with temperatures ranging from 453 to 473 °C and pressures of 95 bar. Venus lacks water, which makes crustal rock stronger and helps preserve surface features. The features observed provide evidence for the geological processes at work. Twenty feature types have been categorized thus far. These classes include local features, such as craters, coronae, and undae, as well as regional-scale features, such as planitiae, plana, and tesserae.
Aptronym
An aptronym, aptonym, or euonym is a personal name aptly or peculiarly suited to its owner.
Dual-Stage 4-Grid
The Dual-Stage 4-Grid (DS4G) is an electrostatic ion thruster design developed by the European Space Agency, in collaboration with the Australian National University. The design was derived by D. Fern from Controlled Thermonuclear Reactor experiments that use a 4-grid mechanism to accelerate ion beams.
Generic polynomial
In mathematics, a generic polynomial refers usually to a polynomial whose coefficients are indeterminates. For example, if a, b, and c are indeterminates, the generic polynomial of degree two in x is ax2+bx+c.
Nitrosyl-O-hydroxide
Nitrosyl-O-hydroxide (molecular formula HOON) is an isomer of nitrous acid, which has been experimentally observed in the gas phase. HOON contains the longest oxygen-oxygen bond thus far observed in any known molecule, measured to be 1.9149 angstroms. There had been speculation about the existence of this molecule, and ab initio calculations have suggested that it might have a stable chemically bonded structure.
M-SG reducing agent
In M-SG an alkali metal is absorbed into silica gel at elevated temperatures. The resulting black powder material is an effective reducing agent and safe to handle as opposed to the pure metal. The material can also be used as a desiccant and as a hydrogen source.
Host (Unix)
host is a simple utility for performing Domain Name System lookups.
Program Files
Program Files is the directory name of a standard folder in Microsoft Windows operating systems in which applications that are not part of the operating system are conventionally installed. Typically, each application installed under the 'Program Files' directory will have a subdirectory for its application-specific resources. Shared resources, for example resources used by multiple applications from one company, are typically stored in the 'Common Files' directory.
Fibrocystic breast changes
Fibrocystic breast changes is a condition of the breasts where there may be pain, breast cysts, and breast masses. The breasts may be described as "lumpy" or "doughy". Symptoms may worsen during certain parts of the menstrual cycle due to hormonal stimulation. These are normal breast changes, not associated with cancer.Risk factors include an early age at first menstrual period and either having children at a late age or not at all. It is not a disease but represents normal breast changes. Diagnosis involves ruling out breast cancer. Fibrocystic changes include fibroadenomas, fibrosis, and papillomas of the breast.Management may involve education about the condition, using a well fitting bra, and pain medication, if needed. Occasionally danazol or tamoxifen may be used for pain. It is estimated that up to 60% of women are affected. Most commonly between the ages of 30 and 50 years.
Bilobalide
Bilobalide is a biologically active terpenic trilactone present in Ginkgo biloba.
Stop motion
Stop motion is an animated filmmaking technique in which objects are physically manipulated in small increments between individually photographed frames so that they will appear to exhibit independent motion or change when the series of frames is played back. Any kind of object can thus be animated, but puppets with movable joints (puppet animation) or plasticine figures (clay animation or claymation) are most commonly used. Puppets, models or clay figures built around an armature are used in model animation. Stop motion with live actors is often referred to as pixilation. Stop motion of flat materials such as paper, fabrics or photographs is usually called cutout animation.
Interleaved 2 of 5
Interleaved 2 of 5 (ITF) is a continuous two-width barcode symbology encoding digits. It is used commercially on 135 film, for ITF-14 barcodes, and on cartons of some products, while the products inside are labeled with UPC or EAN.