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Autoguider
An autoguider is an automatic electronic guidance tool used in astronomy to keep a telescope pointed precisely at an object being observed. This prevents the object from drifting across the field of view during long-exposures which would create a blurred or elongated image.
Small nucleolar RNA SNORD47
In molecular biology, SNORD47 (also known as U47) is a non-coding RNA (ncRNA) molecule which functions in the modification of other small nuclear RNAs (snRNAs). This type of modifying RNA is usually located in the nucleolus of the eukaryotic cell which is a major site of snRNA biogenesis. It is known as a small nucleolar RNA (snoRNA) and also often referred to as a guide RNA.
Colossally abundant number
In mathematics, a colossally abundant number (sometimes abbreviated as CA) is a natural number that, in a particular, rigorous sense, has many divisors. Particularly, it's defined by a ratio between the sum of an integer's divisors and that integer raised to a power higher than one. For any such exponent, whichever integer has the highest ratio is a colossally abundant number. It is a stronger restriction than that of a superabundant number, but not strictly stronger than that of an abundant number.
Cost-of-production theory of value
In economics, the cost-of-production theory of value is the theory that the price of an object or condition is determined by the sum of the cost of the resources that went into making it. The cost can comprise any of the factors of production (including labor, capital, or land) and taxation.
Tryptic soy broth
Tryptic soy broth or Trypticase soy broth (frequently abbreviated as TSB) is used in microbiology laboratories as a culture broth to grow aerobic bacteria. It is a complex, general purpose medium that is routinely used to grow certain pathogenic bacteria, which tend to have high nutritional requirements (i.e., they are fastidious). Its agar counterpart is tryptic soy agar (TSA). One of the components of Tryptic soy broth is Phytone Archived 2014-08-22 at the Wayback Machine, which is an enzymatic digest of soybean meal.
Retread
Retread, also known as "recap", or a "remold" is a re-manufacturing process for tires that replace the tread on worn tires. Retreading is applied to casings of spent tires that have been inspected and repaired. It preserves about 90% of the material in spent tires and the material cost is about 20% compared to manufacturing a new one.
Protocrystalline
A protocrystalline phase is a distinct phase occurring during crystal growth, which evolves into a microcrystalline form. The term is typically associated with silicon films in optical applications such as solar cells.
SELFOC Microlens
SELFOC Microlenses are flat-ended gradient-index lenses. The refractive index variation in the material is created by ion exchange. They are used as collimators or lenses for filter components. The flat ends make alignment easy. They were developed by Nippon Sheet Glass.
Abietadiene synthase
The enzyme abieta-7,13-diene synthase (EC 4.2.3.18) catalyzes the chemical reaction (+)-copalyl diphosphate ⇌ abieta-7,13-diene + diphosphateThis enzyme belongs to the family of lyases, specifically those carbon-oxygen lyases acting on phosphates. The systematic name of this enzyme class is (+)-copalyl-diphosphate diphosphate-lyase [cyclizing, abieta-7,13-diene-forming]. This enzyme is also called copalyl-diphosphate diphosphate-lyase (cyclizing). This enzyme participates in diterpenoid biosynthesis.
Mir-16 microRNA precursor family
The miR-16 microRNA precursor family is a group of related small non-coding RNA genes that regulates gene expression. miR-16, miR-15, mir-195 and miR-497 are related microRNA precursor sequences from the mir-15 gene family ([1]). This microRNA family appears to be vertebrate specific and its members have been predicted or experimentally validated in a wide range of vertebrate species (MIPF0000006).
Dover's powder
Dover's powder was a traditional medicine against cold and fever developed by Thomas Dover. It is no longer in use in modern medicine, but may have been in use at least through the 1960s.
Pontoon bridge
A pontoon bridge (or ponton bridge), also known as a floating bridge, uses floats or shallow-draft boats to support a continuous deck for pedestrian and vehicle travel. The buoyancy of the supports limits the maximum load that they can carry.
Reabsorption
In renal physiology, reabsorption or tubular reabsorption is the process by which the nephron removes water and solutes from the tubular fluid (pre-urine) and returns them to the circulating blood. It is called reabsorption (and not absorption) because these substances have already been absorbed once (particularly in the intestines) and the body is reclaiming them from a postglomerular fluid stream that is on its way to becoming urine (that is, they will soon be lost to the urine unless they are reabsorbed from the tubule into the peritubular capillaries. This happens as a result of sodium transport from the lumen into the blood by the Na+/K+ATPase in the basolateral membrane of the epithelial cells. Thus, the glomerular filtrate becomes more concentrated, which is one of the steps in forming urine. Nephrons are divided into five segments, with different segments responsible for reabsorbing different substances. Reabsorption allows many useful solutes (primarily glucose and amino acids), salts and water that have passed through Bowman's capsule, to return to the circulation. These solutes are reabsorbed isotonically, in that the osmotic potential of the fluid leaving the proximal convoluted tubule is the same as that of the initial glomerular filtrate. However, glucose, amino acids, inorganic phosphate, and some other solutes are reabsorbed via secondary active transport through cotransport channels driven by the sodium gradient.
Epigenetic theories of homosexuality
Epigenetic theories of homosexuality concern the studies of changes in gene expression or cellular phenotype caused by mechanisms other than changes in the underlying DNA sequence, and their role in the development of homosexuality. Epigenetics examines the set of chemical reactions that switch parts of the genome on and off at strategic times and locations in the organism's life cycle. However, epigenetic theories tangle a multiplicity of initiating causes and of resulting final effects and will never lead to a single cause or a single result. Hence, any interpretation of such theories may not focus just one isolated reason of a multiplicity of causes or of effects.Instead of affecting the organism's DNA sequence, non-genetic factors may cause the organism's genes to express themselves differently. DNA in the human body is wrapped around histones, which are proteins that package and order DNA into structural units. DNA and histone are covered with chemical tags known as the epigenome, which shapes the physical structure of the genome. It tightly wraps inactive genes on the DNA sequence making those genes unreadable while loosely wrapping active genes making them more expressive. The more tightly wrapped the gene, the less it will be expressed in the organism. These epigenetic tags react to stimuli presented from the outside world. It adjusts specific genes in the genome to respond to humans' rapidly changing environments. The idea of epigenetics and gene expression has been a theory applied to the origins of homosexuality in humans. One team of researchers examined the effects of epi-marks buffering XX fetuses and XY fetuses from certain androgen exposure and used published data on fetal androgen signaling and gene regulation through non-genetic changes in DNA packaging to develop a new model for homosexuality. The researchers found that stronger than average epi-marks, epigenomes that are wrapped tightly around the DNA sequence, convert sexual preference in individuals without altering genitalia or sexual identity. However, a later study found that male homosexuality is not linked to low androgen sensitivity or "sex-reversed" epi-marks.
Longevity medicine (aging)
Longevity medicine is a set of preventive healthcare practices that rely on biomarkers of aging, such as aging clocks, to keep the patient's biological and psychological age as near to peak performance as feasible throughout life. Biogerontology and precision medicine are some of the related fields. As of early 2020s it is a "fast developing field", according to an article in a Lancet specialty journal.
Michaelis–Gutmann bodies
Michaelis–Gutmann bodies, (M-G bodies) are concentrically layered basophilic inclusions found in Hansemann cells in the urinary tract. They are 2 to 10 μm in diameter, and are thought to represent remnants of phagosomes mineralized by iron and calcium deposits.M-G bodies are a pathognomonic feature of malakoplakia, an inflammatory condition that affects the genitourinary tract. They were discovered in 1902 by Leonor Michaelis and Carl Gutmann.
Simeon (email client)
Simeon was an IMAP4 email client by The Esys Corporation with support for IMSP and LDAP.Simeon was available for several platforms, including Windows (3.x, 95 and NT), Macintosh (both 68k and PowerPC), and multiple Unix variants.Although commended for its rich features as an early IMAP client, its difficult interface was regarded as more complex to use than POP based mail clients. Lack of advanced filtering of mail and inability to easily manage multiple mail accounts (Simeon requires editing of configuration files) were also criticized.Simeon was the default email client installed on Heriot-Watt University's IT infrastructure. It was also formerly used at the University of East Anglia.
Media Block
A Media Block or Integrated Media Block is a component in a digital cinema projection system. Its purpose is to convert the Digital Cinema Package (DCP) content into data that ultimately produces picture and sound in a theater in compliance with DCI anti-piracy encryption requirements.
AirQ+
AirQ+ is a free software for Windows and Linux operating systems developed by the World Health Organization (WHO) Regional Office for Europe. The program calculates the magnitude of several health effects associated to exposure to the most relevant air pollutants in a given population. AirQ+ has been used in the BreatheLife campaign and in numerous studies aimed at measuring long-term exposure to ambient particulate matter PM2.5. The first version of the program, AirQ, was distributed in a Microsoft Excel spreadsheet program in 1999, followed by another version of AirQ for Windows in 2000. A substantial difference between AirQ and AirQ+ is that AirQ+ contains a new graphical user interface with several help texts and various features to input and analyse data and illustrate results. AirQ+ version 1.3 was released in October 2018, version 2.0 in November 2019 and version 2.1 in May 2021. It is available in English, French, German and Russian.
ADDML
Archival Data Description Mark-up Language (ADDML) is a standard describing a collection of data files. The standard was originally developed by the National Archives of Norway (NAN), and existed in several different versions until a constant form was reached with 8.2, the present de facto standard.
South-up map orientation
South-up map orientation is the orientation of a map with south up, at the top of the map, amounting to a 180-degree rotation of the map from the standard convention of north-up. Maps in this orientation are sometimes called upside down maps or reversed maps.Other maps with non-standard orientation include T and O maps, polar maps, and Dymaxion maps.
AOC2
Amine oxidase, copper containing 2 (AOC2) is a protein that in humans is encoded by the AOC2 gene. The protein is a copper-containing primary amine oxidase enzyme.
Aston Medal
The Aston Medal is awarded by the British Mass Spectrometry Society to individuals who have worked in the United Kingdom and have made outstanding contributions to our understanding of the biological, chemical, engineering, mathematical, medical, or physical sciences relating directly to mass spectrometry. The medal is named after one of Britain's founders of mass spectrometry and 1922 Nobel prize winner Francis William Aston.The award is made sporadically, with no more than one medal being awarded each year. Recipients of this honour receive a gold-plated medal with a portrait of Francis Aston as well as an award certificate.
Dummy (football)
In association football, rugby league, rugby union and Australian rules football, a dummy or feint is a player deceiving the opposition into believing he is going to pass, shoot, move in a certain direction, or receive the ball and instead doing something different, thus gaining an advantage.
Boom (navigational barrier)
A boom or a chain (also boom defence, harbour chain, river chain, chain boom, boom chain or variants) is an obstacle strung across a navigable stretch of water to control or block navigation. In modern times they usually have civil uses, such as to prevent access to a dangerous river channel. But, especially historically, they have been used militarily, with the goal of denying access to an enemy's ships: a modern example is the anti-submarine net. Booms have also been used to force passing vessels to pay a toll.
CCL13
Chemokine (C-C motif) ligand 13 (CCL13) is a small cytokine belonging to the CC chemokine family. Its gene is located on human chromosome 17 within a large cluster of other CC chemokines. CCL13 induces chemotaxis in monocytes, eosinophils, T lymphocytes, and basophils by binding cell surface G-protein linked chemokine receptors such as CCR2, CCR3 and CCR5. Activity of this chemokine has been implicated in allergic reactions such as asthma. CCL13 can be induced by the inflammatory cytokines interleukin-1 and TNF-α.
ITap
iTap is a predictive text technology developed for mobile phones, developed by Motorola employees as a competitor to T9. It was designed as a replacement for the old letter mappings on phones to help with word entry. This makes some of the modern mobile phones features like text messaging and note-taking easier.
Volume-weighted average price
In finance, volume-weighted average price (VWAP) is the ratio of the value of a security or financial asset traded to the total volume of transactions during a trading session. It is a measure of the average trading price for the period.Typically, the indicator is computed for one day, but it can be measured between any two points in time.
Picogen
Picogen is a rendering system for the creation and rendering of artificial terrain, based on ray tracing. It is free software.
Well-being contributing factors
Well-being is a topic studied in psychology, especially positive psychology. Related concepts are eudaimonia, happiness, flourishing, quality of life, contentment, and meaningful life.
Clash of Codes
Clash of Codes is a term in sports used to describe a match played between two teams who play different codes of the same sport. Games are usually played with the codes changing at half-time, or across two matches of the difference codes with an aggregate score. Usually associated with the codes of football, and especially rugby, several games have occurred throughout history.
Ethylamine
Ethylamine, also known as ethanamine, is an organic compound with the formula CH3CH2NH2. This colourless gas has a strong ammonia-like odor. It condenses just below room temperature to a liquid miscible with virtually all solvents. It is a nucleophilic base, as is typical for amines. Ethylamine is widely used in chemical industry and organic synthesis.
Streaming algorithm
In computer science, streaming algorithms are algorithms for processing data streams in which the input is presented as a sequence of items and can be examined in only a few passes, typically just one. These algorithms are designed to operate with limited memory, generally logarithmic in the size of the stream and/or in the maximum value in the stream, and may also have limited processing time per item.
Epitope mapping
In immunology, epitope mapping is the process of experimentally identifying the binding site, or epitope, of an antibody on its target antigen (usually, on a protein). Identification and characterization of antibody binding sites aid in the discovery and development of new therapeutics, vaccines, and diagnostics. Epitope characterization can also help elucidate the binding mechanism of an antibody and can strengthen intellectual property (patent) protection. Experimental epitope mapping data can be incorporated into robust algorithms to facilitate in silico prediction of B-cell epitopes based on sequence and/or structural data.Epitopes are generally divided into two classes: linear and conformational/discontinuous. Linear epitopes are formed by a continuous sequence of amino acids in a protein. Conformational epitopes epitopes are formed by amino acids that are nearby in the folded 3D structure but distant in the protein sequence. Note that conformational epitopes can include some linear segments. B-cell epitope mapping studies suggest that most interactions between antigens and antibodies, particularly autoantibodies and protective antibodies (e.g., in vaccines), rely on binding to discontinuous epitopes.
Cerebellar granule cell
Cerebellar granule cells form the thick granular layer of the cerebellar cortex and are among the smallest neurons in the brain. (The term granule cell is used for several unrelated types of small neurons in various parts of the brain.) Cerebellar granule cells are also the most numerous neurons in the brain: in humans, estimates of their total number average around 50 billion, which means that they constitute about 3/4 of the brain's neurons.
Leap second
A leap second is a one-second adjustment that is occasionally applied to Coordinated Universal Time (UTC), to accommodate the difference between precise time (International Atomic Time (TAI), as measured by atomic clocks) and imprecise observed solar time (UT1), which varies due to irregularities and long-term slowdown in the Earth's rotation. The UTC time standard, widely used for international timekeeping and as the reference for civil time in most countries, uses TAI and consequently would run ahead of observed solar time unless it is reset to UT1 as needed. The leap second facility exists to provide this adjustment. The leap second was introduced in 1972 and since then 27 leap seconds have been added to UTC.
Delafossite
Delafossite is a copper iron oxide mineral with formula CuFeO2 or Cu1+Fe3+O2. It is a member of the delafossite mineral group, which has the general formula ABO2, a group characterized by sheets of linearly coordinated A cations stacked between edge-shared octahedral layers (BO6). Delafossite, along with other minerals of the ABO2 group, is known for its wide range of electrical properties, its conductivity varying from insulating to metallic. Delafossite is usually a secondary mineral that crystallizes in association with oxidized copper and rarely occurs as a primary mineral.
Input Field Separators
For many command line interpreters (“shell”) of Unix operating systems, the input field separators or internal field separators or $IFS shell variable holds characters used to separate text into tokens.
Tangsuyuk
Tangsuyuk (탕수육) is a Korean Chinese meat dish with sweet and sour sauce. It can be made with either pork or beef.
FreeON
In computer software, FreeON is an experimental, open source (GPL) suite of programs for linear scaling quantum chemistry, formerly known as MondoSCF. It is highly modular, and has been written from scratch for N-scaling SCF theory in Fortran95 and C. Platform independent IO is supported with HDF5. FreeON should compile with most modern Linux distributions. FreeON performs Hartree–Fock, pure density functional, and hybrid HF/DFT calculations (e.g. B3LYP) in a Cartesian-Gaussian LCAO basis. All algorithms are O(N) or O(N lg N) for non-metallic systems. Periodic boundary conditions in 1, 2 and 3 dimensions have been implemented through the Lorentz field ( Γ -point), and an internal coordinate geometry optimizer allows full (atom+cell) relaxation using analytic derivatives. Effective core potentials for energies and forces have been implemented, but Effective Core Potential (ECP) lattice forces do not work yet. Advanced features include O(N) static and dynamic response, as well as time reversible Born Oppenheimer Molecular Dynamics (MD).
Puddling (civil engineering)
Puddling is both the material and the process of lining a water body such as a channel or pond with puddle clay (puddle, puddling) – a watertight (low hydraulic conductivity) material based on clay and water mixed to be workable.
Carboalkoxylation
In industrial chemistry, carboalkoxylation is a process for converting alkenes to esters. This reaction is a form of carbonylation. A closely related reaction is hydrocarboxylation, which employs water in place of alcohols A commercial application is the carbomethoxylation of ethylene to give methyl propionate: C2H4 + CO + MeOH → MeO2CC2H5The process is catalyzed by Pd[C6H4(CH2PBu-t)2]2. Under similar conditions, other Pd-diphosphines catalyze formation of polyethyleneketone.
History of Philosophy Quarterly
The History of Philosophy Quarterly (HPQ) is a peer-reviewed academic journal dedicated to the history of philosophy. The journal is indexed by PhilPapers and the Philosopher's Index.The History of Philosophy Quarterly was founded in 1984 by Nicholas Rescher of the University of Pittsburgh. In the first issue, the editors of the journal announced that a focus would be on looking to the history of philosophy to help solve contemporary issues, advocating "that approach to philosophical history, increasingly prominent in recent years, which refuses to see the boundary between philosophy and its history as an impassable barrier, but regards historical studies as a way of dealing with problems of continued interest and importance." The journal is published by the University of Illinois Press and the current editor is Brian Copenhaver at University of California, Los Angeles.
Prismanes
The prismanes are a class of hydrocarbon compounds consisting of prism-like polyhedra of various numbers of sides on the polygonal base. Chemically, it is a series of fused cyclobutane rings (a ladderane, with all-cis/all-syn geometry) that wraps around to join its ends and form a band, with cycloalkane edges. Their chemical formula is (C2H2)n, where n is the number of cyclobutane sides (the size of the cycloalkane base), and that number also forms the basis for a system of nomenclature within this class. The first few chemicals in this class are: Triprismane, tetraprismane, and pentaprismane have been synthesized and studied experimentally, and many higher members of the series have been studied using computer models. The first several members do indeed have the geometry of a regular prism, with flat n-gon bases. As n becomes increasingly large, however, modeling experiments find that highly symmetric geometry is no longer stable, and the molecule distorts into less-symmetric forms. One series of modelling experiments found that starting with [11]prismane, the regular-prism form is not a stable geometry. For example, the structure of [12]prismane would have the cyclobutane chain twisted, with the dodecagonal bases non-planar and non-parallel.
Quincha
Quincha is a traditional construction system that uses, fundamentally, wood and cane or giant reed forming an earthquake-proof framework that is covered in mud and plaster.
Salt bridge
In electrochemistry, a salt bridge or ion bridge is a laboratory device used to connect the oxidation and reduction half-cells of a galvanic cell (voltaic cell), a type of electrochemical cell. It maintains electrical neutrality within the internal circuit. If no salt bridge were present, the solution in one-half cell would accumulate a negative charge and the solution in the other half cell would accumulate a positive charge as the reaction proceeded, quickly preventing further reaction, and hence the production of electricity. Salt bridges usually come in two types: glass tubes and filter paper.
F6 (classification)
F6, also SP6, is a wheelchair sport classification that corresponds to the neurological level L2 - L5. Historically, this class has been known as Lower 4, Upper 5. People in this class have good sitting balance, and good forward and backward movement of their trunk. They have some use of their thighs and can press their knees together. Sports open to people in this class include archery, adaptive rowing, ten-pin bowling, swimming, wheelchair basketball, wheelchair fencing and athletics. The process for classification into this class has a medical and functional classification process. This process is often sport specific.
Photoionisation cross section
Photoionisation cross section in the context of condensed matter physics refers to the probability of a particle (usually an electron) being emitted from its electronic state.
Morse–Palais lemma
In mathematics, the Morse–Palais lemma is a result in the calculus of variations and theory of Hilbert spaces. Roughly speaking, it states that a smooth enough function near a critical point can be expressed as a quadratic form after a suitable change of coordinates. The Morse–Palais lemma was originally proved in the finite-dimensional case by the American mathematician Marston Morse, using the Gram–Schmidt orthogonalization process. This result plays a crucial role in Morse theory. The generalization to Hilbert spaces is due to Richard Palais and Stephen Smale.
Scofflaw
Scofflaw is a noun coined during the Prohibition era which originally denoted a person who drinks illegally, or otherwise ignored anti-drinking laws. It is a compound of the words scoff and law. Its use has been extended to mean one who flouts any law, especially those difficult to enforce, and particularly traffic laws.
Rheumatoid factor
Rheumatoid factor (RF) is the autoantibody that was first found in rheumatoid arthritis. It is defined as an antibody against the Fc portion of IgG and different RFs can recognize different parts of the IgG-Fc. RF and IgG join to form immune complexes that contribute to the disease process such as chronic inflammation and join destruction at the synovium and cartilage.Rheumatoid factor can also be a cryoglobulin (antibody that precipitates on cooling of a blood sample); it can be either type 2 (monoclonal IgM to polyclonal IgG) or type 3 (polyclonal IgM to polyclonal IgG) cryoglobulin.
Data Reference Model
The Data Reference Model (DRM) is one of the five reference models of the Federal Enterprise Architecture.
Teichmüller modular form
In mathematics, a Teichmüller modular form is an analogue of a Siegel modular form on Teichmüller space.
Hyperorgasmia
Hyperorgasmia, is the experience of a significantly larger number of orgasms in a short period of time than what is normal. It has been reported to occur as a side effect of the antidepressant drug, moclobemide.
Shakespeare's writing style
William Shakespeare's style of writing was borrowed from the conventions of the day and adapted to his needs.
Neutron backscattering
Neutron backscattering is one of several inelastic neutron scattering techniques. Backscattering from monochromator and analyzer crystals is used to achieve an energy resolution in the order of μeV. Neutron backscattering experiments are performed to study atomic or molecular motion on a nanosecond time scale.
Perlfee
The Perlfee rabbit is a rare breed originating in Germany They are only found in blueish-grey colour, with dark, light and medium shades accepted, medium is preferred, the belly and around the eyes should be lighter in colour.It is a recognized breed by the British Rabbit Council but not the American Rabbit Breeders Association.
GDP-4-dehydro-D-rhamnose reductase
In enzymology, a GDP-4-dehydro-D-rhamnose reductase (EC 1.1.1.187) is an enzyme that catalyzes the chemical reaction GDP-6-deoxy-D-mannose + NAD(P)+ ⇌ GDP-4-dehydro-6-deoxy-D-mannose + NAD(P)H + H+The 3 substrates of this enzyme are GDP-6-deoxy-D-mannose, NAD+, and NADP+, whereas its 4 products are GDP-4-dehydro-6-deoxy-D-mannose, NADH, NADPH, and H+. This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is GDP-6-deoxy-D-mannose:NAD(P)+ 4-oxidoreductase. Other names in common use include GDP-4-keto-6-deoxy-D-mannose reductase, GDP-4-keto-D-rhamnose reductase, and guanosine diphosphate-4-keto-D-rhamnose reductase. This enzyme participates in fructose and mannose metabolism.
Color volume
A color solid is the three-dimensional representation of a color model, an analog of the two-dimensional color wheel. The added spatial dimension allows a color solid to depict an added dimension of color variation. Whereas a two-dimensional color wheel typically depicts the variables of hue (red, green, blue, etc.) and lightness (gradations of light and dark, tints or shades), a color solid adds the variable of colorfulness (either chroma or saturation), allowing the solid to depict all conceivable colors in an organized three-dimensional structure.
Polyonychia
Polyonychia also known as supernumerary nails is a condition in which two or more nails grow in the same finger or toe.
Fish counter
Automatic fish counters are automatic devices for measuring the number of fish passing along a particular river in a particular period of time. Usually one particular species is of interest. One important species studied by fish counters are Atlantic salmon. This species is of interest owing to its ecologically vulnerable status and anadromous lifestyles.
Puppy Linux
Puppy Linux is an operating system and family of light-weight Linux distributions that focus on ease of use and minimal memory footprint. The entire system can be run from random-access memory (RAM) with current versions generally taking up about 600 MB (64-bit), 300 MB (32-bit), allowing the boot medium to be removed after the operating system has started. Applications such as AbiWord, Gnumeric and MPlayer are included, along with a choice of lightweight web browsers and a utility for downloading other packages. The distribution was originally developed by Barry Kauler and other members of the community, until Kauler retired in 2013. The tool Woof can build a Puppy Linux distribution from the binary packages of other Linux distributions.
BERT (language model)
Bidirectional Encoder Representations from Transformers (BERT) is a family of language models introduced in 2018 by researchers at Google. A 2020 literature survey concluded that "in a little over a year, BERT has become a ubiquitous baseline in Natural Language Processing (NLP) experiments counting over 150 research publications analyzing and improving the model."BERT was originally implemented in the English language at two model sizes: (1) BERTBASE: 12 encoders with 12 bidirectional self-attention heads totaling 110 million parameters, and (2) BERTLARGE: 24 encoders with 16 bidirectional self-attention heads totaling 340 million parameters. Both models were pre-trained on the Toronto BookCorpus (800M words) and English Wikipedia (2,500M words).
Radiometer
A radiometer or roentgenometer is a device for measuring the radiant flux (power) of electromagnetic radiation. Generally, a radiometer is an infrared radiation detector or an ultraviolet detector. Microwave radiometers operate in the microwave wavelengths.
Herglotz–Zagier function
In mathematics, the Herglotz–Zagier function, named after Gustav Herglotz and Don Zagier, is the function log ⁡(nx)}1n. introduced by Zagier (1975) who used it to obtain a Kronecker limit formula for real quadratic fields.
Folate-biopterin transporter family
The folate-biopterin transporter (FBT) family (TC# 2.A.71) is a distant family within the major facilitator superfamily, most closely related to drug resistance permeases. Proteins of the FBT family are reported to contain about 480 to 650 amino acyl residues. All probably have 12 transmembrane α-helical segments (TMSs). They may function by H+ symport.
Tipster
A tipster is someone who regularly provides information (tips) on the likely outcomes of sporting events on internet sites or special betting places.
Non-adjacent form
The non-adjacent form (NAF) of a number is a unique signed-digit representation, in which non-zero values cannot be adjacent. For example: (0 1 1 1)2 = 4 + 2 + 1 = 7 (1 0 −1 1)2 = 8 − 2 + 1 = 7 (1 −1 1 1)2 = 8 − 4 + 2 + 1 = 7 (1 0 0 −1)2 = 8 − 1 = 7All are valid signed-digit representations of 7, but only the final representation, (1 0 0 −1)2, is in non-adjacent form.
Agile usability engineering
Agile usability engineering is a method created from a combination of agile software development and usability engineering practices. Agile usability engineering attempts to apply the principles of rapid and iterative development to the field of user interface design. Early implementations of usability engineering in user-centered design came into professional practice during the mid–late 1980s. Early implementations of agile software development evolved in the mid-1990s. It has only been within the past few years that the human-computer interaction community have seen widespread acceptance of agile usability engineering.
Congener (beverages)
In the alcoholic beverages industry, congeners are substances, other than the desired type of alcohol, ethanol, produced during fermentation. These substances include small amounts of chemicals such as methanol and other alcohols (known as fusel alcohols), acetone, acetaldehyde, esters, tannins, and aldehydes (e.g. furfural). Congeners are responsible for most of the taste and aroma of distilled alcoholic beverages, and contribute to the taste of non-distilled drinks. It has been suggested that these substances contribute to the symptoms of a hangover. Brandy, rum and red wine have the highest amount of congeners, while vodka and beer have the least.
Semantic Web Stack
The Semantic Web Stack, also known as Semantic Web Cake or Semantic Web Layer Cake, illustrates the architecture of the Semantic Web.
Y-DNA haplogroups in populations of the Caucasus
Various Y-DNA haplogroups have differing frequencies within each ethnolinguistic group in the Caucasus region.
Estradiol dipropionate/hydroxyprogesterone caproate
Estradiol dipropionate/hydroxyprogesterone caproate (EDP/OHPC), sold under the brand name EP Hormone Depot, is a combined estrogen–progestogen medication which is used in Japan. It is manufactured by Teikoku Zoki Pharmaceutical Co., Tokyo and contains 1 mg/mL estradiol dipropionate and 50 mg/mL hydroxyprogesterone caproate.
Ripretinib
Ripretinib, sold under the brand name Qinlock, is a medication for the treatment of adults with advanced gastrointestinal stromal tumor (GIST), a type of tumor that originates in the gastrointestinal tract. It is taken by mouth. Ripretinib inhibits the activity of the kinases KIT and PDGFRA, which helps keep cancer cells from growing.The most common side effects include alopecia (hair loss), fatigue, nausea, abdominal pain, constipation, myalgia (muscle pain), diarrhea, decreased appetite, palmar-plantar erythrodysesthesia syndrome (a skin reaction in the palms and soles) and vomiting.Ripretinib was approved for medical use in the United States in May 2020, in Australia in July 2020, and in the European Union in November 2021. Ripretinib is the first new drug specifically approved in the United States as a fourth-line treatment for advanced gastrointestinal stromal tumor (GIST).
Kepler-90i
Kepler-90i (also known by its Kepler Object of Interest designation KOI-351.08) is a super-Earth exoplanet with a radius 1.32 times that of Earth, orbiting the early G-type main sequence star Kepler-90 every 14.45 days, discovered by NASA's Kepler spacecraft. It is located about 2,840 light-years (870 parsecs, or nearly 2.4078×1016 km) from Earth in the constellation Draco. The exoplanet is the eighth in the star's multiplanetary system. As of December 2017, Kepler-90 is the star hosting the most exoplanets found. Kepler-90i was found with the transit method, in which the dimming effect that a planet causes as it crosses in front of its star is measured, and by a newly utilized computer tool, deep learning, a class of machine learning algorithms.
Satellite radio
Satellite radio is defined by the International Telecommunication Union (ITU)'s ITU Radio Regulations (RR) as a broadcasting-satellite service. The satellite's signals are broadcast nationwide, across a much wider geographical area than terrestrial radio stations, and the service is primarily intended for the occupants of motor vehicles. It is available by subscription, mostly commercial free, and offers subscribers more stations and a wider variety of programming options than terrestrial radio.Satellite radio technology was inducted into the Space Foundation Space Technology Hall of Fame in 2002. Satellite radio uses the 2.3 GHz S band in North America for nationwide digital radio broadcasting. In other parts of the world, satellite radio uses the 1.4 GHz L band allocated for DAB.
Carbon monoxide
Carbon monoxide (chemical formula CO) is a poisonous, flammable gas that is colorless, odorless, tasteless, and slightly less dense than air. Carbon monoxide consists of one carbon atom and one oxygen atom connected by a triple bond. It is the simplest carbon oxide. In coordination complexes, the carbon monoxide ligand is called carbonyl. It is a key ingredient in many processes in industrial chemistry.The most common source of carbon monoxide is the partial combustion of carbon-containing compounds. Numerous environmental and biological sources generate carbon monoxide. In industry, carbon monoxide is important in the production of many compounds, including drugs, fragrances, and fuels. Upon emission into the atmosphere, carbon monoxide affects several processes that contribute to climate change.Carbon monoxide has important biological roles across phylogenetic kingdoms. It is produced by many organisms, including humans. In mammalian physiology, carbon monoxide is a classical example of hormesis where low concentrations serve as an endogenous neurotransmitter (gasotransmitter) and high concentrations are toxic resulting in carbon monoxide poisoning. It is isoelectronic with cyanide anion CN−.
Alexandroff extension
In the mathematical field of topology, the Alexandroff extension is a way to extend a noncompact topological space by adjoining a single point in such a way that the resulting space is compact. It is named after the Russian mathematician Pavel Alexandroff.
Cleaner
A cleaner or a cleaning operative is a type of industrial or domestic worker who does the cleaning.Cleaner in Cambridge English dictionary means: "a person whose job is to clean houses, offices, public places, etc.:", in Collins dictionary: "A cleaner is someone who is employed to clean the rooms and furniture inside a building." However, a cleaner does not always have to be employed and does not have to perform work for pay an example would be socially and charity cleaning for example free forest cleanup from garbage so the definitions of the cleaner word depend on the author. Word cleaner also means: "substance used for cleaning" e.g. oven cleaner and device used to clean e.g. an air cleaner.To sum up, the simplest thing to say is that a cleaner is usually a person who does cleaning.
Whispering campaign
A whispering campaign or whisper campaign is a method of persuasion in which damaging rumors or innuendo are spread about the target, while the source of the rumors seeks to avoid being detected while they are spread. For example, a political campaign might distribute anonymous flyers attacking the other candidate. The tactic is generally considered unethical in open societies, particularly in matters of public policy. The speed and the anonymity of communication made possible by modern technologies like the Internet have increased public awareness of whisper campaigns and their ability to succeed. The phenomenon has also led to the failure of whisper campaigns, as those seeking to prevent them can publicize their existence much more readily than in the past. Whisper campaigns are defended in some circles as an efficient mechanism for underdogs who lack other resources to disclose wrongdoings of the powerful without repercussions.
ColorSounds
ColorSounds was a national music video program televised on PBS stations in the mid-1980s. ColorSounds taught viewers how to read and speak English creatively through the use of music videos.
Liquid nitrogen wash
The Liquid Nitrogen Wash is mainly used for the production of ammonia synthesis gas within fertilizer production plants. It is usually the last purification step in the ammonia production process sequence upstream of the actual ammonia production.
Timeline of Gravity Probe B
The Gravity Probe B mission timeline describes the events during the flight of Gravity Probe B, the science phase of its experimental campaign, and the analysis of the recorded data.
Jade
Jade is a mineral used as jewellery or for ornaments. It is typically green, although may be yellow or white. Jade can refer to either of two different silicate minerals: nephrite (a silicate of calcium and magnesium in the amphibole group of minerals), or jadeite (a silicate of sodium and aluminium in the pyroxene group of minerals).Jade is well known for its ornamental use in East Asian, South Asian, and Southeast Asian art. It is commonly used in Latin America, such as Mexico and Guatemala. The use of jade in Mesoamerica for symbolic and ideological ritual was influenced by its rarity and value among pre-Columbian Mesoamerican cultures, such as the Olmecs, the Maya, and other ancient civilizations of the Valley of Mexico.
ICMP Router Discovery Protocol
In computer networking, the ICMP Internet Router Discovery Protocol (IRDP), also called the Internet Router Discovery Protocol, is a protocol for computer hosts to discover the presence and location of routers on their IPv4 local area network. Router discovery is useful for accessing computer systems on other nonlocal area networks. The IRDP is defined by the IETF RFC 1256 standard, with the Internet Control Message Protocol (ICMP) upon which it is based defined in IETF RFC 792. IRDP eliminates the need to manually configure routing information.
Digon
In geometry, a digon is a polygon with two sides (edges) and two vertices. Its construction is degenerate in a Euclidean plane because either the two sides would coincide or one or both would have to be curved; however, it can be easily visualised in elliptic space. A regular digon has both angles equal and both sides equal and is represented by Schläfli symbol {2}. It may be constructed on a sphere as a pair of 180 degree arcs connecting antipodal points, when it forms a lune. The digon is the simplest abstract polytope of rank 2. A truncated digon, t{2} is a square, {4}. An alternated digon, h{2} is a monogon, {1}.
Keratoendotheliitis fugax hereditaria
Keratoendotheliitis fugax hereditaria is an autosomal dominantly inherited disease of the cornea, caused by a point mutation in cryopyrin (also known as NALP3) that in humans is encoded by the NLRP3 gene located on the long arm of chromosome 1.In keratoendotheliitis fugax hereditaria, patients suffer from periodical transient inflammation of the corneal endothelium and stroma, leading to short term obscuration of vision and, in some patients after repeated attacks, to central corneal stromal opacities. Approximately 50 known cases have been reported in the literature. The disease so far has only been described from Finland, but exome databases suggest it may be more widely distributed in people of European ancestry.Keratoendotheliitis fugax hereditaria is thought to belong to cryopyrin-associated periodic syndromes.
Purely inseparable extension
In algebra, a purely inseparable extension of fields is an extension k ⊆ K of fields of characteristic p > 0 such that every element of K is a root of an equation of the form xq = a, with q a power of p and a in k. Purely inseparable extensions are sometimes called radicial extensions, which should not be confused with the similar-sounding but more general notion of radical extensions.
Mail-in-a-Box
Mail-in-a-Box is a free and open-source program for mail server hosting developed by Joshua Tauberer. The software's goal is to enable any user to turn a cloud system into a mail server in few hours. The tool enables developers to host mail for multiple users and multiple domain names.The default configuration provides a spam detection system, monitoring, reporting and backup mechanisms. It can also set up and automatically renew a Let's Encrypt certificate, as well as configuring the detailed DNS configurations needed to ensure that a mail server's IP address is trusted by other servers, and less likely to be blacklisted. Its support for IMAP/SMTP facilitates synchronizing across devices.First developed in 2013 by Tauberer, the tool is written in Python. The project supports Ubuntu LTS.
Biogenesis scandal
The Biogenesis scandal broke in 2013 when several Major League Baseball (MLB) players were accused of obtaining performance-enhancing drugs ("PEDs"), specifically human growth hormone, from the now-defunct rejuvenation clinic Biogenesis of America. After an ex-employee, annoyed over missing back-pay, revealed clinic records that were "clear in describing the firm's real business: selling performance-enhancing drugs", MLB sued six people connected to Biogenesis, accusing them of damaging the sport by providing banned substances to its players. In July, thirteen involved players received lengthy suspensions of fifty or more games (nearly a third of a season).
Water conditioner
Water conditioners are formulations designed to be added to tap water before its use in an aquarium. If the tap water is chlorinated then a simple conditioner containing a dechlorinator may be used. These products contain sodium thiosulfate which reduces chlorine to chloride which is less harmful to fish. However, chloramine is now often used in water disinfection and simple dechlorinators only deal with the chlorine portion, releasing free ammonia that is very harmful to fish. More complex products employ sulfonates that are able to deal with both chlorine and ammonia. The most sophisticated products also contain chelators such as ethylenediaminetetraacetic acid to bind and remove heavy metals and slime coat protectors such as polyvinylpyrrolidones or Aloe vera extracts.
Anti-tank grenade
An anti-tank grenade is a specialized hand-thrown grenade used to defeat armored targets. Although their inherently short range limits the usefulness of grenades, troops can lie in ambush or maneuver under cover to exploit the limited outward visibility of the crew in a target vehicle. Hand launched anti-tank grenades became redundant with the introduction of standoff rocket propelled grenades and man-portable anti-tank systems.
Grapefruit mercaptan
Grapefruit mercaptan is the common name for a natural organic compound found in grapefruit. It is a monoterpenoid that contains a thiol (also known as a mercaptan) functional group. Structurally a hydroxy group of terpineol is replaced by the thiol in grapefruit mercaptan, so it also called thioterpineol. Volatile thiols typically have very strong, often unpleasant odors that can be detected by humans in very low concentrations. Grapefruit mercaptan has a very potent, but not unpleasant, odor, and it is the chemical constituent primarily responsible for the aroma of grapefruit. This characteristic aroma is a property of only the R enantiomer.Pure grapefruit mercaptan, or citrus-derived oils rich in grapefruit mercaptan, are sometimes used in perfumery and the flavor industry to impart citrus aromas and flavors. However, both industries actively seek substitutes for grapefruit mercaptans for use as a grapefruit flavorant, since its decomposition products are often highly disagreeable to the human sense of smell.
Voiced bilabial fricative
The voiced bilabial fricative is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ⟨β⟩, and the equivalent X-SAMPA symbol is B. The official symbol ⟨β⟩ is the Greek letter beta.
Duplication and elimination matrices
In mathematics, especially in linear algebra and matrix theory, the duplication matrix and the elimination matrix are linear transformations used for transforming half-vectorizations of matrices into vectorizations or (respectively) vice versa.
Quasithin group
In mathematics, a quasithin group is a finite simple group that resembles a group of Lie type of rank at most 2 over a field of characteristic 2. More precisely it is a finite simple group of characteristic 2 type and width 2. Here characteristic 2 type means that its centralizers of involutions resemble those of groups of Lie type over fields of characteristic 2, and the width is roughly the maximal rank of an abelian group of odd order normalizing a non-trivial 2-subgroup of G. When G is a group of Lie type of characteristic 2 type, the width is usually the rank (the dimension of a maximal torus of the algebraic group).
Bida Airstrip
Bida Airport (ICAO: DNBI) is an airport serving Bida in Nigeria. The Bida VOR/DME (ident: BDA) and Bida Non-directional beacon (ident: BD) are located on the airfield.
Laminas
Laminas Project (formerly Zend Framework or ZF) is an open source, object-oriented web application framework implemented in PHP 7 and licensed under the New BSD License. The framework is basically a collection of professional PHP-based packages. The framework uses various packages by the use of Composer as part of its package dependency managers; some of them are PHPUnit for testing all packages, Travis CI for continuous Integration Services. Laminas provides to users a support of the model–view–controller (MVC) in combination with Front Controller solution. MVC implementation in Laminas has five main areas. The router and dispatcher functions to decide which controller to run based on data from URL, and controller functions in combination with the model and view to develop and create the final web page.On 17 April 2019 it was announced that the framework is transitioning into an open source project hosted by the Linux Foundation to be known as Laminas.
Computational philosophy
Computational philosophy or digital philosophy is the use of computational techniques in philosophy. It includes concepts such as computational models, algorithms, simulations, games, etc. that help in the research and teaching of philosophical concepts, as well as specialized online encyclopedias and graphical visualizations of relationships among philosophers and concepts. The use of computers in philosophy has gained momentum as computer power and the availability of data have increased greatly. This, along with the development of many new techniques that use those computers and data, has opened many new ways of doing philosophy that were not available before. It has also led to new insights in philosophy.
Phenomenology (psychology)
Phenomenology or phenomenological psychology, a sub-discipline of psychology, is the scientific study of subjective experiences. It is an approach to psychological subject matter that attempts to explain experiences from the point of view of the subject via the analysis of their written or spoken word. The approach has its roots in the phenomenological philosophical work of Edmund Husserl.