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World Radio TV Handbook | The World Radio TV Handbook, also known as WRTH, is a directory of virtually every radio and TV station on Earth, published yearly. The importance of the book has greatly diminished with the online availability of up-to-date frequency informations. |
ILLIAC III | The ILLIAC III was a fine-grained SIMD pattern recognition computer built by the University of Illinois in 1966.
This ILLIAC's initial task was image processing of bubble chamber experiments used to detect nuclear particles. Later it was used on biological images. |
OntoCAPE | OntoCAPE is a large-scale ontology for the domain of Computer-Aided Process Engineering (CAPE). It can be downloaded free of charge via the OntoCAPE Homepage.
OntoCAPE is partitioned into 62 sub-ontologies, which can be used individually or as an integrated suite. The sub-ontologies are organized across different abstraction layers, which separate general knowledge from knowledge about particular domains and applications.
The upper layers have the character of an upper ontology, covering general topics such as mereotopology, systems theory, quantities and units.
The lower layers conceptualize the domain of chemical process engineering, covering domain-specific topics such as materials, chemical reactions, or unit operations. |
Pickled herring | Pickled herring is a traditional way of preserving herring as food by pickling or curing. |
Zirconium(IV) hydroxide | Zirconium (IV) hydroxide, often called hydrous zirconia is an ill-defined material or family of materials variously described as ZrO2·nH2O and Zr(OH)4·nH2O. All are white solids with low solubility in water. These materials are widely employed in the preparation of solid acid catalysts.These materials are generated by mild base hydrolysis of zirconium halides and nitrates. A typical precursor is zirconium oxychloride. |
Reductio ad absurdum | In logic, reductio ad absurdum (Latin for "reduction to absurdity"), also known as argumentum ad absurdum (Latin for "argument to absurdity") or apagogical arguments, is the form of argument that attempts to establish a claim by showing that the opposite scenario would lead to absurdity or contradiction. This argument form traces back to Ancient Greek philosophy and has been used throughout history in both formal mathematical and philosophical reasoning, as well as in debate. |
Off-key | Off-key is musical content that is not at the expected frequency or pitch period, either with respect to some absolute reference frequency, or in a ratiometric sense (i.e. through removal of exactly one degree of freedom, such as the frequency of a keynote), or pitch intervals not well-defined in the ratio of small whole numbers.
The term may also refer to a person or situation being out of step with what is considered normal or appropriate. A single note deliberately played or sung off-key can be called an "off-note". It is sometimes used the same way as a blue note in jazz. |
D2-like receptor | The D2-like receptors are a subfamily of dopamine receptors that bind the endogenous neurotransmitter dopamine. The D2-like subfamily consists of three G-protein coupled receptors that are coupled to Gi/Go and mediate inhibitory neurotransmission, of which include D2, D3, and D4. For more information, please see the respective main articles of the individual subtypes: |
Sculpture trail | A sculpture trail - also known as "a culture walk" or "art trail" - is a walkway through open-air galleries of outdoor sculptures along a defined route with sequenced viewings encountered from planned preview and principal sight lines. |
Time in Honduras | Honduras observes Central Standard Time (UTC−6) year-round. |
Discriminant of an algebraic number field | In mathematics, the discriminant of an algebraic number field is a numerical invariant that, loosely speaking, measures the size of the (ring of integers of the) algebraic number field. More specifically, it is proportional to the squared volume of the fundamental domain of the ring of integers, and it regulates which primes are ramified. |
Psychagogy | Psychagogy is a psycho-therapeutic method of influencing behavior by suggesting desirable life goals. In a more spiritual context, it can mean guidance of the soul. It is considered to be one of many antecedents and components of modern psychology.European psychagogy's beginnings can be dated back to the time of Socrates and Plato. Psychagogic methods were implemented by such groups as the Stoics, Epicureans, and Cynics. The method was also eventually adopted by Paul the Apostle, James, as well as other early Christian thinkers. Enduring well into the 20th century, psychagogy began to influence and be influenced by other psychological disciplines. Eventually the term psychagogy itself largely died out during the 1970s and 1980s, however the concept continues to be practiced through modalities like cognitive behavioral therapy, life coaching and pastoral counseling. |
Energy & Fuels | Energy & Fuels is a peer-reviewed scientific journal published by the American Chemical Society. It was established in 1987. Its publication frequency switched from bimonthly to monthly in 2009. The editor-in-chief is Hongwei Wu (Curtin University).
According to the American Chemical Society, Energy & Fuels publishes reports of research in the technical area defined by the intersection of the disciplines of chemistry and chemical engineering and the application domain of non-nuclear energy and fuels. |
Cu2+-exporting ATPase | Cu2+-exporting ATPase (EC 3.6.3.4) is an enzyme with systematic name ATP phosphohydrolase (Cu2+-exporting). This enzyme catalyses the following chemical reaction ATP + H2O + Cu2+in ⇌ ADP + phosphate + Cu2+outThis P-type ATPase undergoes covalent phosphorylation during the transport cycle. |
Telegeodynamics | Telegeodynamics is an electromechanical earth-resonance concept for underground seismic exploration proposed by Nikola Tesla. |
Transitional epithelium | Transitional epithelium is a type of stratified epithelium. Transitional epithelium is a type of tissue that changes shape in response to stretching (stretchable epithelium). The transitional epithelium usually appears cuboidal when relaxed and squamous when stretched. This tissue consists of multiple layers of epithelial cells which can contract and expand in order to adapt to the degree of distension needed. Transitional epithelium lines the organs of the urinary system and is known here as urothelium (PL: urothelia). The bladder, for example, has a need for great distension. |
Papagoite | Papagoite is a rare cyclosilicate mineral. Chemically, it is a calcium copper aluminium silicate hydroxide, found as a secondary mineral on slip surfaces and in altered granodiorite veins, either in massive form or as microscopic crystals that may form spherical aggregates. Its chemical formula is Ca Cu Al Si2O6(O H)3. |
PL/Perl | PL/Perl (Procedural Language/Perl) is a procedural language supported by the PostgreSQL RDBMS.
PL/Perl, as an imperative programming language, allows more control than the relational algebra of SQL.
Programs created in the PL/Perl language are called functions and can use most of the features that the Perl programming language provides, including common flow control structures and syntax that has incorporated regular expressions directly.
These functions can be evaluated as part of a SQL statement, or in response to a trigger or rule. |
Eyewear retailer | Eyewear is a term used to refer to all accessories worn over both of a person's eyes, or occasionally a single eye, for one or more of a variety of purposes. Though historically used for vision improvement and correction, eyewear has also evolved into eye protection, for fashion and aesthetic purposes, and starting in the late 20th century, computers and virtual reality. |
Rain and snow mixed | Rain and snow mixed is precipitation composed of a mixture of rain and partially melted snow. Unlike ice pellets, which are hard, and freezing rain, which is fluid until striking an object where it fully freezes, this precipitation is soft and translucent, but it contains some traces of ice crystals from partially fused snowflakes, also called slush. In any one location, it usually occurs briefly as a transition phase from rain to snow or vice-versa, but hits the surface before fully transforming. Its METAR code is RASN or SNRA. |
Visual cryptography | Visual cryptography is a cryptographic technique which allows visual information (pictures, text, etc.) to be encrypted in such a way that the decrypted information appears as a visual image. |
Soil health | Soil health is a state of a soil meeting its range of ecosystem functions as appropriate to its environment. In more colloquial terms, the health of soil arises from favorable interactions of all soil components (living and non-living) that belong together, as in microbiota, plants and animals. It is possible that a soil can be healthy in terms of eco-system functioning but not necessarily serve crop production or human nutrition directly, hence the scientific debate on terms and measurements. |
TANGO | The TANGO control system is a free open source device-oriented controls toolkit for controlling any kind of hardware or software and building SCADA systems. It is used for controlling synchrotrons, lasers, physics experiments in over 20 sites. It is being actively developed by a consortium of research institutes. |
Front Panel Data Port | The front panel data port (FPDP) is a bus that provides high speed data transfer between two or more VMEbus boards at up to 160 Mbit/s with low latency. The FPDP bus uses a 32-bit parallel synchronous bus wired with an 80-conductor ribbon cable.The following interface functions are supported: FPDP/TM (transmitter master) - drives data and timing signals onto the FPDP, and also terminates the bus signals at one end of the ribbon cable FPDP/RM (receiver master) - receives data from the FPDP synchronously with the timing signals provided by the FPDP/TM, and also terminates the bus at the opposite end of the cable to the FPDP/TM FPDP/R (receiver) - receives data from the FPDP synchronously with the timing signals provided by the FPDP/TM; it does not terminate the bus. More than one FPDP/R can be connected to the FPDP bus. It can also be an alternate function to that of FPDP/RM via software control.The connector, denoted by the FPDP specification, is a KEL P/N 8825E-080-175. |
Holyhedron | In mathematics, a holyhedron is a type of 3-dimensional geometric body: a polyhedron each of whose faces contains at least one polygon-shaped hole, and whose holes' boundaries share no point with each other or the face's boundary.The concept was first introduced by John H. Conway; the term "holyhedron" was coined by David W. Wilson in 1997 as a pun involving polyhedra and holes. Conway also offered a prize of 10,000 USD, divided by the number of faces, for finding an example, asking: Is there a polyhedron in Euclidean three-dimensional space that has only finitely many plane faces, each of which is a closed connected subset of the appropriate plane whose relative interior in that plane is multiply connected?No actual holyhedron was constructed until 1999, when Jade P. Vinson presented an example of a holyhedron with a total of 78,585,627 faces; another example was subsequently given by Don Hatch, who presented a holyhedron with 492 faces in 2003, worth about 20.33 USD prize money. |
Hydroxyglutamate decarboxylase | The enzyme hydroxyglutamate decarboxylase (EC 4.1.1.16) catalyzes the chemical reaction 3-hydroxy-L-glutamate ⇌ 4-amino-3-hydroxybutanoate + CO2Hence, this enzyme has one substrate, 3-hydroxy-L-glutamate, and two products, 4-amino-3-hydroxybutanoate and CO2.
This enzyme belongs to the family of lyases, specifically the carboxy-lyases, which cleave carbon-carbon bonds. The systematic name of this enzyme class is 3-hydroxy-L-glutamate 1-carboxy-lyase (4-amino-3-hydroxybutanoate-forming). This enzyme is also called 3-hydroxy-L-glutamate 1-carboxy-lyase. It employs one cofactor, pyridoxal phosphate. |
Facial masculinization surgery | Facial masculinization surgery (FMS) is a set of plastic surgery procedures that can transform the patient's face to exhibit typical masculine morphology. Cisgender men may elect to undergo these procedures, and in the context of transgender people, FMS is a type of facial gender confirmation surgery (FGCS), which also includes facial feminization surgery (FFS) for transgender women.FMS can include various bony procedures such as chin augmentation, cheek augmentation, as well as augmentation of the forehead, jaw, and Adam's apple. In FMS, most procedures involve "having structures added to give more angles to the face." |
Dry pot chicken | Dry pot chicken, also referred as hot pot chicken, 鸡爆 - jī bào or 干锅鸡 - gān guō jī, is a dish served as a dry hot pot, cooked with chili pepper, garlic and chicken, by fast frying the chicken in oil.
Dry pot chicken is but one type of hot pot dish. The seasoning, ingredients and cooking methods are similar to the more common "wet" hot pots, but dry hot pots do not have the soup base. |
Mnemonist | The title mnemonist refers to an individual with the ability to remember and recall unusually long lists of data, such as unfamiliar names, lists of numbers, entries in books, etc. Some mnemonists also memorize texts such as long poems, speeches, or even entire books of fiction or non-fiction. The term is derived from the term mnemonic, which refers to a strategy to support remembering (such as the method of loci or major system), but not all mnemonists report using mnemonics. Mnemonists may have superior innate ability to recall or remember, in addition to (or instead of) relying on techniques. |
Marvel No-Prize | The Marvel No-Prize is a fake or satirical award given out by Marvel Comics to readers. Originally for those who spotted continuity errors in the comics, the current "No-Prizes" are given out for charitable works or other types of "meritorious service to the cause of Marveldom". As the No-Prize evolved, it was distinguished by its role in explaining away potential continuity errors. Initially awarded simply for identifying such errors, a No-Prize was later given only when a reader successfully explained why the continuity error was not an error at all. |
Portopulmonary hypertension | Portopulmonary hypertension (PPH) is defined by the coexistence of portal and pulmonary hypertension. PPH is a serious complication of liver disease, present in 0.25 to 4% of all patients with cirrhosis. Once an absolute contraindication to liver transplantation, it is no longer, thanks to rapid advances in the treatment of this condition. Today, PPH is comorbid in 4-6% of those referred for a liver transplant. |
Fard | Farḍ (Arabic: فرض) or farīḍah (فريضة) or fardh in Islam is a religious duty commanded by God. The word is also used in Turkish, Persian, Pashto, Urdu (spelled farz), and Malay (spelled fardu or fardhu) in the same meaning. Muslims who obey such commands or duties are said to receive hasanat (حسنة), ajr (أجر) or thawab (ثواب) for each good deed. |
Strontium chlorate | Strontium chlorate is a chemical compound, with the formula Sr(ClO3)2. It is a strong oxidizing agent. |
Object-oriented programming | Object-Oriented Programming (OOP) is a programming paradigm based on the concept of "objects", which can contain data and code. The data is in the form of fields (often known as attributes or properties), and the code is in the form of procedures (often known as methods). A common feature of objects is that procedures (or methods) are attached to them and can access and modify the object's data fields. In this brand of OOP, there is usually a special name such as this or self used to refer to the current object. In OOP, computer programs are designed by making them out of objects that interact with one another. OOP languages are diverse, but the most popular ones are class-based, meaning that objects are instances of classes, which also determine their types. |
Penumbra (medicine) | In pathology and anatomy the penumbra is the area surrounding an ischemic event such as thrombotic or embolic stroke. Immediately following the event, blood flow and therefore oxygen transport is reduced locally, leading to hypoxia of the cells near the location of the original insult. This can lead to hypoxic cell death (infarction) and amplify the original damage from the ischemia; however, the penumbra area may remain viable for several hours after an ischemic event due to the collateral arteries that supply the penumbral zone. |
LoLa (software) | LoLa (low latency audio visual streaming system) is proprietary networked music performance software, first conceived in 2005, that enables real-time rehearsing and performing with musicians at remote locations, overcoming latency - the time lapse that occurs while (compressed) audio streams travel to and from each musician. |
Knorr-Bremse | Knorr-Bremse AG is a German manufacturer of braking systems for rail and commercial vehicles that has operated in the field for over 110 years. Other products in Group's portfolio include intelligent door systems, control components, air conditioning systems for rail vehicles, torsional vibration dampers, and transmission control systems for commercial vehicles.
In 2022, the Group's workforce of over 31,000 achieved worldwide sales of EUR 7.15 billion.The Group has a presence in over 30 countries, at 100 locations.On 13 October 2022, it was announced that Knorr-Bremse AG had chosen Marc Llistosella to be a member of the Executive Board and CEO. The appointment takes effect as of 1 January 2023. |
Comparison triangle | Define Mk2 as the 2-dimensional metric space of constant curvature k . So, for example, M02 is the Euclidean plane, M12 is the surface of the unit sphere, and M−12 is the hyperbolic plane. |
DryvIQ | DryvIQ is a software application that enables businesses to migrate on-site system files and associated data across storage and content management platforms, as well as create synchronized hybrid storage systems. |
A Treatise Concerning the Principles of Human Knowledge | A Treatise Concerning the Principles of Human Knowledge (commonly called the Principles of Human Knowledge, or simply the Treatise) is a 1710 work, in English, by Irish Empiricist philosopher George Berkeley. This book largely seeks to refute the claims made by Berkeley's contemporary John Locke about the nature of human perception. Whilst, like all the Empiricist philosophers, both Locke and Berkeley agreed that we are having experiences, regardless of whether material objects exist, Berkeley sought to prove that the outside world (the world which causes the ideas one has within one's mind) is also composed solely of ideas. Berkeley did this by suggesting that "Ideas can only resemble Ideas" – the mental ideas that we possess can only resemble other ideas (not material objects) and thus the external world consists not of physical form, but rather of ideas. This world is (or, at least, was) given logic and regularity by some other force, which Berkeley concludes is God. |
Menlo Report | The Menlo Report is a report published by the U.S. Department of Homeland Security Science and Technology Directorate, Cyber Security Division that outlines an ethical framework for research involving Information and Communications Technologies (ICT).The 17-page report was published on August 3, 2012. The following year, the Department of Homeland Security published a 33-page companion report that includes case studies that illustrate how the principles can be applied. |
Xóc đĩa | Xóc đĩa (Chữ Nôm: 觸碟) is gambling game, originated and widespread in Vietnam. The game probably originated around 1909. This game is considered illegal by the governmental authorities because it's thought to be linked with criminal activities and gambling is defined as an illegal act in the Vietnamese Criminal Code. |
Truffle butter | Truffle butter is a compound butter made with butter combined with other ingredients, including truffles or synthetic truffle flavorings such as 2,4-dithiapentane. |
GRIN2C | Glutamate [NMDA] receptor subunit epsilon-3 is a protein that in humans is encoded by the GRIN2C gene. |
Excited delirium | Excited delirium (ExDS), also known as agitated delirium (AgDS) or hyperactive delirium syndrome with severe agitation, is a controversial diagnosis sometimes characterized as a potentially fatal state of extreme agitation and delirium. It is typically diagnosed postmortem in young adult males, disproportionally black men, who were physically restrained at the time of death, most often by law enforcement personnel. |
Uterosacral ligament | The uterosacral ligaments (or rectouterine ligaments) are major ligaments of uterus that extend posterior-ward from the cervix to attach onto the (anterior aspect of the) sacrum. |
Periodontal ligament stem cells | Periodontal ligament stem cells are stem cells found near the periodontal ligament of the teeth. They are involved in adult regeneration of the periodontal ligament, alveolar bone, and cementum. The cells are known to express STRO-1 and CD146 proteins. |
MESP2 | Mesoderm posterior protein 2 (MESP2), also known as class C basic helix-loop-helix protein 6 (bHLHc6), is a protein that in humans is encoded by the MESP2 gene. |
Colpitts oscillator | A Colpitts oscillator, invented in 1918 by Canadian-American engineer Edwin H. Colpitts, is one of a number of designs for LC oscillators, electronic oscillators that use a combination of inductors (L) and capacitors (C) to produce an oscillation at a certain frequency. The distinguishing feature of the Colpitts oscillator is that the feedback for the active device is taken from a voltage divider made of two capacitors in series across the inductor. |
Deep-sky object | A deep-sky object (DSO) is any astronomical object that is not an individual star or Solar System object (such as Sun, Moon, planet, comet, etc.). The classification is used for the most part by amateur astronomers to denote visually observed faint naked eye and telescopic objects such as star clusters, nebulae and galaxies. This distinction is practical and technical, implying a variety of instruments and techniques appropriate to observation, and does not distinguish the nature of the object itself. |
Jakarta Persistence Query Language | The Jakarta Persistence Query Language (JPQL; formerly Java Persistence Query Language) is a platform-independent object-oriented query language: 284, §12 defined as part of the Jakarta Persistence (JPA; formerly Java Persistence API) specification.
JPQL is used to make queries against entities stored in a relational database. It is heavily inspired by SQL, and its queries resemble SQL queries in syntax,: 17, §1.3 but operate against JPA entity objects rather than directly with database tables.: 26, §2.2.3 In addition to retrieving objects (SELECT queries), JPQL supports set based UPDATE and DELETE queries. |
Waveform monitor | A waveform monitor is a special type of oscilloscope used in television production applications. It is typically used to measure and display the level, or voltage, of a video signal with respect to time. |
Binary tetrahedral group | In mathematics, the binary tetrahedral group, denoted 2T or ⟨2,3,3⟩, is a certain nonabelian group of order 24. It is an extension of the tetrahedral group T or (2,3,3) of order 12 by a cyclic group of order 2, and is the preimage of the tetrahedral group under the 2:1 covering homomorphism Spin(3) → SO(3) of the special orthogonal group by the spin group. It follows that the binary tetrahedral group is a discrete subgroup of Spin(3) of order 24. The complex reflection group named 3(24)3 by G.C. Shephard or 3[3]3 and by Coxeter, is isomorphic to the binary tetrahedral group. |
Fréchet distance | In mathematics, the Fréchet distance is a measure of similarity between curves that takes into account the location and ordering of the points along the curves. It is named after Maurice Fréchet. |
Heat death paradox | The heat death paradox, also known as thermodynamic paradox, Clausius' paradox and Kelvin’s paradox, is a reductio ad absurdum argument that uses thermodynamics to show the impossibility of an infinitely old universe. It was formulated in February 1862 by Lord Kelvin and expanded upon by Hermann von Helmholtz and William John Macquorn Rankine. |
Spoken game | A spoken game is a game which uses words instead of cards, boards, game pieces, or other paraphernalia.
Spoken games can often also be categorized as guessing games, word games, or because of their freedom from equipment or visual engagement, car games.
Well-known spoken games include Twenty Questions, Riddle Me Ree, and Password. Because of their nature, spoken games are usually non-commercial. |
Unigine | UNIGINE is a proprietary cross-platform game engine developed by UNIGINE Company used in simulators, virtual reality systems, serious games and visualization. It supports OpenGL 4, Vulkan and DirectX 12.UNIGINE Engine is a core technology for a lineup of benchmarks (CPU, GPU, power supply, cooling system), which are used by overclockers and technical media such as Tom's Hardware, Linus Tech Tips, PC Gamer, and JayzTwoCents. UNIGINE benchmarks are also included as part of the Phoronix Test Suite for benchmarking purposes on Linux and other systems. |
Tower crane anti-collision system | A tower crane anti-collision system is an operator support system for tower cranes on construction sites. It helps an operator to anticipate the risk of contact between the moving parts of a tower crane and other tower cranes and structures. In the event that a collision becomes imminent, the system can send a command to the crane's control system, ordering it to slow down or stop. An anti-collision system can describe an isolated system installed on an individual tower crane. It can also describe a site wide coordinated system, installed on many tower cranes in close proximity. |
Gastrointestinal disease | Gastrointestinal diseases (abbrev. GI diseases or GI illnesses) refer to diseases involving the gastrointestinal tract, namely the esophagus, stomach, small intestine, large intestine and rectum, and the accessory organs of digestion, the liver, gallbladder, and pancreas. |
Ras p21 protein activator 2 | RAS p21 protein activator 2 is a protein that in humans is encoded by the RASA2 gene. |
Catholic dogmatic theology | Catholic dogmatic theology can be defined as "a special branch of theology, the object of which is to present a scientific and connected view of the accepted doctrines of the Christian faith." |
Airport Expressway | An airport expressway is an expressway connecting to the airport as a road for vehicles going to the airport. Airport Expressway may also refer to: |
Linear trend estimation | Linear trend estimation is a statistical technique to aid interpretation of data. When a series of measurements of a process are treated as, for example, a sequences or time series, trend estimation can be used to make and justify statements about tendencies in the data, by relating the measurements to the times at which they occurred. This model can then be used to describe the behaviour of the observed data, without explaining it. |
Omitted-variable bias | In statistics, omitted-variable bias (OVB) occurs when a statistical model leaves out one or more relevant variables. The bias results in the model attributing the effect of the missing variables to those that were included.
More specifically, OVB is the bias that appears in the estimates of parameters in a regression analysis, when the assumed specification is incorrect in that it omits an independent variable that is a determinant of the dependent variable and correlated with one or more of the included independent variables. |
Ubiquitin carboxyl-terminal hydrolase L5 | Ubiquitin carboxyl-terminal hydrolase isozyme L5 is an enzyme that in humans is encoded by the UCHL5 gene. |
Quark (dairy product) | Quark or quarg is a type of fresh dairy product made from milk. The milk is soured, usually by adding lactic acid bacteria cultures, and strained once the desired curdling is achieved. It can be classified as fresh acid-set cheese. Traditional quark can be made without rennet, but in modern dairies small quantities of rennet are typically added. It is soft, white and unaged, and usually has no salt added. |
Barrier troops | Barrier troops, blocking units, or anti-retreat forces are military units that are located in the rear or on the front line (behind the main forces) to maintain military discipline, prevent the flight of servicemen from the battlefield, capture spies, saboteurs and deserters, and return troops who flee from the battlefield or lag behind their units.
According to research by Jason Lyall, barrier troops are more likely to be used by the militaries of states that discriminate against the ethnic groups that comprise the state's military. |
Cannabinol | Cannabinol (CBN) is a mildly psychoactive cannabinoid that acts as a low affinity partial agonist at both CB1 and CB2 receptors. This activity at CB1 and CB2 receptors constitutes interaction of CBN with the endocannabinoid system (ECS). |
Bloch's theorem (complex variables) | In complex analysis, a branch of mathematics, Bloch's theorem describes the behaviour of holomorphic functions defined on the unit disk. It gives a lower bound on the size of a disk in which an inverse to a holomorphic function exists. It is named after André Bloch. |
Perspectives on Science | Perspectives on Science is a peer-reviewed academic journal that publishes contributions to science studies that integrate historical, philosophical, and sociological perspectives. The journal contains theoretical essays, case studies, and review essays. Perspectives on Science was established in 1993 and is published online and in hard copy by the MIT Press. |
EUginius | EUginius is an Internet-based database application for Genetically modified organisms (GMOs). The name EUginius is an acronym and stands for EUropean GMO Initiative for a Unified Database System. |
Bio-FET | A field-effect transistor-based biosensor, also known as a biosensor field-effect transistor (Bio-FET or BioFET), field-effect biosensor (FEB), or biosensor MOSFET, is a field-effect transistor (based on the MOSFET structure) that is gated by changes in the surface potential induced by the binding of molecules. When charged molecules, such as biomolecules, bind to the FET gate, which is usually a dielectric material, they can change the charge distribution of the underlying semiconductor material resulting in a change in conductance of the FET channel. A Bio-FET consists of two main compartments: one is the biological recognition element and the other is the field-effect transistor. The BioFET structure is largely based on the ion-sensitive field-effect transistor (ISFET), a type of metal–oxide–semiconductor field-effect transistor (MOSFET) where the metal gate is replaced by an ion-sensitive membrane, electrolyte solution, and reference electrode. |
Ring extension | In mathematics, a subring of R is a subset of a ring that is itself a ring when binary operations of addition and multiplication on R are restricted to the subset, and which shares the same multiplicative identity as R. For those who define rings without requiring the existence of a multiplicative identity, a subring of R is just a subset of R that is a ring for the operations of R (this does imply it contains the additive identity of R). The latter gives a strictly weaker condition, even for rings that do have a multiplicative identity, so that for instance all ideals become subrings (and they may have a multiplicative identity that differs from the one of R). With definition requiring a multiplicative identity (which is used in this article), the only ideal of R that is a subring of R is R itself. |
Supply network operations | Supply network operations are the synchronized execution of compliant manufacturing and logistics processes across a dynamically reconfigurable supply network to profitably meet demand.supply network |
Journal of Luminescence | The Journal of Luminescence is a monthly peer-reviewed scientific journal published by Elsevier. The editor-in-chief is Xueyuan Chen. According to the Journal Citation Reports, the journal has a 2021 impact factor of 4.171, ranking it 26th out of 101 journals in the category "Optics". The journal covers all aspects related to the emission of light (luminescence). |
PhotoRC RNA motifs | PhotoRC RNA motifs refer to conserved RNA structures that are associated with genes acting in the photosynthetic reaction centre of photosynthetic bacteria. Two such RNA classes were identified and called the PhotoRC-I and PhotoRC-II motifs. PhotoRC-I RNAs were detected in the genomes of some cyanobacteria. Although no PhotoRC-II RNA has been detected in cyanobacteria, one is found in the genome of a purified phage that infects cyanobacteria. Both PhotoRC-I and PhotoRC-II RNAs are present in sequences derived from DNA that was extracted from uncultivated marine bacteria. |
Abraham–Lorentz force | In the physics of electromagnetism, the Abraham–Lorentz force (also known as the Lorentz–Abraham force) is the recoil force on an accelerating charged particle caused by the particle emitting electromagnetic radiation by self-interaction. It is also called the radiation reaction force, the radiation damping force, or the self-force. It is named after the physicists Max Abraham and Hendrik Lorentz. |
Fluorsid | Fluorsid S.p.A. is an Italian company active in the chemical and mining industry, and precisely involved in the production and sales of inorganic fluorine derivatives.
The historic production site is located in Macchiareddu, in the industrial area of Cagliari, in Sardinia, but the company has plants and headquarters also located in the Italian peninsula, Norway, Switzerland and United Kingdom. |
Tukey's test of additivity | In statistics, Tukey's test of additivity, named for John Tukey, is an approach used in two-way ANOVA (regression analysis involving two qualitative factors) to assess whether the factor variables (categorical variables) are additively related to the expected value of the response variable. It can be applied when there are no replicated values in the data set, a situation in which it is impossible to directly estimate a fully general non-additive regression structure and still have information left to estimate the error variance. The test statistic proposed by Tukey has one degree of freedom under the null hypothesis, hence this is often called "Tukey's one-degree-of-freedom test." |
Honeycomb | A honeycomb is a mass of hexagonal prismatic cells built from wax by honey bees in their nests to contain their brood (eggs, larvae, and pupae) and stores of honey and pollen. Beekeepers may remove the entire honeycomb to harvest honey. Honey bees consume about 8.4 lb (3.8 kg) of honey to secrete 1 lb (450 g) of wax, and so beekeepers may return the wax to the hive after harvesting the honey to improve honey outputs. The structure of the comb may be left basically intact when honey is extracted from it by uncapping and spinning in a centrifugal machine, more specifically a honey extractor. If the honeycomb is too worn out, the wax can be reused in a number of ways, including making sheets of comb foundation with hexagonal pattern. Such foundation sheets allow the bees to build the comb with less effort, and the hexagonal pattern of worker-sized cell bases discourages the bees from building the larger drone cells. Fresh, new comb is sometimes sold and used intact as comb honey, especially if the honey is being spread on bread rather than used in cooking or as a sweetener. |
Generic Bootstrapping Architecture | Generic Bootstrapping Architecture (GBA) is a technology that enables the authentication of a user. This authentication is possible if the user owns a valid identity on an HLR (Home Location Register) or on an HSS (Home Subscriber Server).
GBA is standardized at the 3GPP (http://www.3gpp.org/ftp/Specs/html-info/33220.htm). The user authentication is instantiated by a shared secret, one in the smartcard, for example a SIM card inside the mobile phone and the other is on the HLR/HSS.
GBA authenticates by making a network component challenge the smartcard and verify that the answer is the one predicted by the HLR/HSS.
Instead of asking the service provider to trust the BSF and relying on it for every authentication request, the BSF establishes a shared secret between the simcard card and the service provider. This shared secret is limited in time and for a specific domain. |
Silylene | Silylene is a chemical compound with the formula SiH2. It is the silicon analog of methylene, the simplest carbene. Silylene is a stable molecule as a gas but rapidly reacts in a bimolecular manner when condensed. Unlike carbenes, which can exist in the singlet or triplet state, silylene (and all of its derivatives) are singlets.
Silylenes are formal derivatives of silylene with its hydrogens replaced by other substituents. Most examples feature amido (NR2) or alkyl/aryl groups.
Silylenes have been proposed as reactive intermediates. They are carbene analogs. |
Thermowell | Thermowells are cylindrical fittings used to protect temperature sensors installed to monitor industrial processes. A thermowell consists of a tube closed at one end and mounted on the wall of the piping or vessel within which the fluid of interest flows. A temperature sensor, such as a thermometer, thermocouple, or resistance temperature detector, is inserted in the open end of the tube, which is usually in the open air outside the piping or vessel and any thermal insulation. Thermodynamically, the process fluid transfers heat to the thermowell wall, which in turn transfers heat to the sensor. Since more mass is present with a sensor-well assembly than with a probe directly immersed into the fluid, the sensor's response to changes in temperature is slowed by the addition of the well. If the sensor fails, it can be easily replaced without draining the vessel or piping. Since the mass of the thermowell must be heated to the fluid temperature, and since the walls of the thermowell conduct heat out of the process, sensor accuracy and responsiveness is reduced by the addition of a thermowell.Traditionally, the thermowell length has been based in the degree of insertion relative to pipe wall diameter. This tradition is misplaced as it can expose the thermowell to the risk of flow-induced vibration and fatigue failure. When measurement error calculations are carried out for the installation, for insulated piping or near-ambient fluid temperatures, excluding thermal radiation effects, conduction error is less than one percent as long as the tip is exposed to flow, even in flanged mounted installations. Arguments for longer designs are based on traditional notions but rarely justified. Long thermowells may be used in low velocity services or in cases where historical experience justified their use. In modern high-strength piping and elevated fluid velocities, each installation must be carefully examined especially in cases where acoustic resonances in the process are involved. |
History of radio disc jockeys | The history of radio disc jockeys covers the time when gramophone records were first transmitted by experimental radio broadcasters to present day radio personalities who host shows featuring a variety of recorded music. |
Striped flint | Striped flint (sometimes called banded flint) is a version of flint, with a more or less regular system of concentric dark and pale stripes, noted to resemble rolling waters. |
Praseodymium(III,IV) oxide | Praseodymium(III,IV) oxide is the inorganic compound with the formula Pr6O11 that is insoluble in water. It has a cubic fluorite structure. It is the most stable form of praseodymium oxide at ambient temperature and pressure. |
DIRKS | DIRKS, an acronym for Designing and Implementing Recordkeeping Systems, is a comprehensive manual outlining the process for creating records management systems including various business information records and transactions as outlined in the Australian Standard for Records Management - AS ISO 15489. DIRKS was developed by the National Archives of Australia in collaboration with the State Records Authority of New South Wales. |
Volumetric flow rate | In physics and engineering, in particular fluid dynamics, the volumetric flow rate (also known as volume flow rate, or volume velocity) is the volume of fluid which passes per unit time; usually it is represented by the symbol Q (sometimes V˙ ). It contrasts with mass flow rate, which is the other main type of fluid flow rate. In most contexts a mention of rate of fluid flow is likely to refer to the volumetric rate. In hydrometry, the volumetric flow rate is known as discharge. Volumetric flow rate should not be confused with volumetric flux, as defined by Darcy's law and represented by the symbol q, with units of m3/(m2·s), that is, m·s−1. The integration of a flux over an area gives the volumetric flow rate. |
GPR35 | G protein-coupled receptor 35 also known as GPR35 is a G protein-coupled receptor which in humans is encoded by the GPR35 gene. Heightened expression of GPR35 is found in immune and gastrointestinal tissues, including the crypts of Lieberkühn. |
Crabbé reaction | The Crabbé reaction (or Crabbé allene synthesis, Crabbé–Ma allene synthesis) is an organic reaction that converts a terminal alkyne and aldehyde (or, sometimes, a ketone) into an allene in the presence of a soft Lewis acid catalyst (or stoichiometric promoter) and secondary amine. Given continued developments in scope and generality, it is a convenient and increasingly important method for the preparation of allenes, a class of compounds often viewed as exotic and synthetically challenging to access. |
Flameless ration heater | A flameless ration heater (FRH), colloquially an MRE heater, is a form of self-heating food packaging included in U.S. military Meal, Ready-to-Eat (MRE) rations (since the early 1990s) or similar rations, capable of raising the temperature of an 8-ounce (230 g) entrée (main course) by 100 °F (38 °C) in twelve minutes, which has no visible flame.
The ration heater contains finely powdered magnesium metal, alloyed with a small amount of iron and table salt. To activate the reaction, a small amount of water is added, and the boiling point of water is quickly reached as the exothermic reaction proceeds. |
Accounting software | Accounting software is a computer program that maintains account books on computers, including recording transactions and account balances. It may depends on virtual thinking. Depending on the purpose, the software can manage budgets, perform accounting tasks for multiple currencies, perform payroll and customer relationship management, and prepare financial reporting. The first accounting software was introduced in 1978. Since then, the accounting software has revolutionized from supporting basic accounting operations to performing real-time accounting and supporting financial processing and reporting. Cloud accounting software was first introduced in 2011, and it allowed to perform all accounting functions through the internet. |
Point-normal triangle | The curved point-normal triangle, in short PN triangle, is an interpolation algorithm to retrieve a cubic Bézier triangle from the vertex coordinates of a regular flat triangle and normal vectors. The PN triangle retains the vertices of the flat triangle as well as the corresponding normals. For computer graphics applications, additionally a linear or quadratic interpolant of the normals is created to represent an incorrect but plausible normal when rendering and so giving the impression of smooth transitions between adjacent PN triangles. The usage of the PN triangle enables the visualization of triangle based surfaces in a smoother shape at low cost in terms of rendering complexity and time. |
Toripristone | Toripristone (INN) (developmental code name RU-40555) is a synthetic, steroidal antiglucocorticoid as well as antiprogestogen which was never marketed. It is reported as a potent and highly selective antagonist of the glucocorticoid receptor (GR) (Ki = 2.4 nM), though it also acts as an antagonist of the progesterone receptor (PR). The pharmacological profile of toripristone is said to be very similar to that of mifepristone, except that toripristone does not bind to orosomucoid (α1-acid glycoprotein). The drug has been used to study the hypothalamic-pituitary-adrenal axis and has been used as a radiotracer for the GR. Its INN was given in 1990. |
Accumulator (energy) | An accumulator is an energy storage device: a device which accepts energy, stores energy, and releases energy as needed. Some accumulators accept energy at a low rate (low power) over a long time interval and deliver the energy at a high rate (high power) over a short time interval. Some accumulators accept energy at a high rate over a short time interval and deliver the energy at a low rate over longer time interval. Some accumulators typically accept and release energy at comparable rates. Various devices can store thermal energy, mechanical energy, and electrical energy. Energy is usually accepted and delivered in the same form. Some devices store a different form of energy than what they receive and deliver performing energy conversion on the way in and on the way out. |
Driving while black | "Driving while black" (DWB) is a sardonic description of racial profiling of African-American motor vehicle drivers. It implies that a motorist may be stopped by a police officer largely because of racial bias rather than any apparent violation of traffic law. It is a word play of "driving while intoxicated." |
TRPC4 | The short transient receptor potential channel 4 (TrpC4), also known as Trp-related protein 4, is a protein that in humans is encoded by the TRPC4 gene. |
Nuclease protection assay | Nuclease protection assay is a laboratory technique used in biochemistry and genetics to identify individual RNA molecules in a heterogeneous RNA sample extracted from cells. The technique can identify one or more RNA molecules of known sequence even at low total concentration. The extracted RNA is first mixed with antisense RNA or DNA probes that are complementary to the sequence or sequences of interest and the complementary strands are hybridized to form double-stranded RNA (or a DNA-RNA hybrid). The mixture is then exposed to ribonucleases that specifically cleave only single-stranded RNA but have no activity against double-stranded RNA. When the reaction runs to completion, susceptible RNA regions are degraded to very short oligomers or to individual nucleotides; the surviving RNA fragments are those that were complementary to the added antisense strand and thus contained the sequence of interest. |
Spanier–Whitehead duality | In mathematics, Spanier–Whitehead duality is a duality theory in homotopy theory, based on a geometrical idea that a topological space X may be considered as dual to its complement in the n-sphere, where n is large enough. Its origins lie in Alexander duality theory, in homology theory, concerning complements in manifolds. The theory is also referred to as S-duality, but this can now cause possible confusion with the S-duality of string theory. It is named for Edwin Spanier and J. H. C. Whitehead, who developed it in papers from 1955. |
Mahjong video game | A Mahjong video game is a video game that is based on one of the many ways to play mahjong. The majority of mahjong video games are developed and released in Japan and use the rules for Japanese Mahjong, although several have also been made for American Mahjong and several Chinese versions of mahjong. Many mahjong video games, especially among those released in Western territories, do not depict the actual game of mahjong but rather mahjong solitaire. |
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