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Balloon satellite | A balloon satellite, sometimes referred to as a "satelloon", is inflated with gas after it has been put into orbit. |
Apprehension (understanding) | In psychology, apprehension (Lat. ad, "to"; prehendere, "to seize") is a term applied to a model of consciousness in which nothing is affirmed or denied of the object in question, but the mind is merely aware of ("seizes") it."Judgment" (says Reid, ed. Hamilton, i. p. 414) "is an act of the mind, specifically different from simple apprehension or the bare conception of a thing". "Simple apprehension or conception can neither be true nor false." This distinction provides for the large class of mental acts in which we are simply aware of, or "take in" a number of familiar objects, about which we in general make no judgment, unless our attention is suddenly called by a new feature. Or again, two alternatives may be apprehended without any resultant judgment as to their respective merits.Similarly, G.F. Stout stated that while we have a very vivid idea of a character or an incident in a work of fiction, we can hardly be said in any real sense to have any belief or to make any judgment as to its existence or truth. With this mental state may be compared the purely aesthetic contemplation of music, wherein apart from, say, a false note, the faculty of judgment is for the time inoperative. To these examples may be added the fact that one can fully understand an argument in all its bearings, without in any way judging its validity. Without going into the question fully, it may be pointed out that the distinction between judgment and apprehension is relative. In every kind of thought, there is judgment of some sort in a greater or less degree of prominence.Judgment and thought are in fact psychologically distinguishable merely as different, though correlative, activities of consciousness. Professor Stout further investigates the phenomena of apprehension, and comes to the conclusion that "it is possible to distinguish and identify a whole without apprehending any of its constituent details." On the other hand, if the attention focuses itself for a time on the apprehended object, there is an expectation that such details will, as it were, emerge into consciousness. Hence, he describes such apprehension as "implicit", and insofar as the implicit apprehension determines the order of such emergence, he describes it as "schematic".A good example of this process is the use of formulae in calculations; ordinarily the formula is used without question; if attention is fixed upon it, the steps by which it is shown to be universally applicable emerge, and the "schema " is complete in detail. With this result may be compared Kant's theory of apprehension as a synthetic act (the "synthesis of apprehension") by which the sensory elements of a perception are subjected to the formal conditions of time and space. |
Automatic bug fixing | Automatic bug-fixing is the automatic repair of software bugs without the intervention of a human programmer. It is also commonly referred to as automatic patch generation, automatic bug repair, or automatic program repair. The typical goal of such techniques is to automatically generate correct patches to eliminate bugs in software programs without causing software regression. |
LED art | LED art is a form of light art constructed from light-emitting diodes. LEDs (light emitting diodes) are very inexpensive to purchase and have become a new way to make street art. Many artists who use LEDs are guerrilla artists, incorporating LEDs to produce temporary pieces in public places. LEDs may be used in installation art, sculptural pieces and interactive artworks. |
Ky Fan lemma | In mathematics, Ky Fan's lemma (KFL) is a combinatorial lemma about labellings of triangulations. It is a generalization of Tucker's lemma. It was proved by Ky Fan in 1952. |
Creatinase | In enzymology, a creatinase (EC 3.5.3.3) is an enzyme that catalyzes the chemical reaction creatine + H2O ⇌ sarcosine + ureaThus, the two substrates of this enzyme are creatine and H2O, whereas its two products are sarcosine and urea. |
KATNA1 | Katanin p60 ATPase-containing subunit A1 is an enzyme that in humans is encoded by the KATNA1 gene.Microtubules, polymers of alpha and beta tubulin subunits, form the mitotic spindle of a dividing cell and help to organize membranous organelles during interphase. Katanin is a heterodimer that consists of a 60 kDa ATPase (p60 subunit A 1) and an 80 kDa accessory protein (p80 subunit B 1). The p60 subunit acts to sever and disassemble microtubules, while the p80 subunit targets the enzyme to the centrosome. This gene encodes the p80 subunit. This protein is a member of the AAA family of ATPases. |
Drysdallite | Drysdallite is a rare molybdenum selenium sulfide mineral with formula Mo(Se,S)2. It crystallizes in the hexagonal system as small pyramidal crystals or in cleavable masses. It is an opaque metallic mineral with a Mohs hardness of 1 to 1.5 and a specific gravity of 6.25. Like molybdenite it is pliable with perfect cleavage.
It was first described in 1973 for an occurrence in an oxidized uranium deposit near Solwezi, Zambia. It was named for Alan Roy Drysdall, the director of the Zambian geological survey. |
Cilomilast | Cilomilast (INN, codenamed SB-207,499, proposed trade name Ariflo) is a drug which was developed for the treatment of respiratory disorders such as asthma and chronic obstructive pulmonary disease (COPD). It is orally active and acts as a selective phosphodiesterase-4 inhibitor.Phosphodiesterase (PDE) inhibitors, such as theophylline, have been used to treat COPD for centuries; however, the clinical benefits of these agents have never been shown to outweigh the risks of their numerous adverse effects. Four clinical trials were identified evaluating the efficacy of cilomilast, the usual randomized, double-blind, and placebo-controlled protocols were used. It showed reasonable efficacy for treating COPD, but side effects were problematic and it is unclear whether cilomilast will be marketed, or merely used in the development of newer drugs.Cilomilast is a second-generation PDE4 inhibitor with anti-inflammatory effects that target bronchoconstriction, mucus hypersecretion, and airway remodeling associated with COPD. |
4-Hydroxy-2-oxopentanoic acid | 4-Hydroxy-2-oxopentanoaic acid, also known as 4-hydroxy-2-oxovalerate, is formed by the decarboxylation of 4-oxalocrotonate by 4-oxalocrotonate decarboxylase, is degraded by 4-hydroxy-2-oxovalerate aldolase, forming acetaldehyde and pyruvate and is reversibly dehydrated by 2-oxopent-4-enoate hydratase to 2-oxopent-4-enoate. |
MPLAB devices | The MPLAB series of devices are programmers and debuggers for Microchip PIC and dsPIC microcontrollers, developed by Microchip Technology.
The ICD family of debuggers has been produced since the release of the first Flash-based PIC microcontrollers, and the latest ICD 3 currently supports all current PIC and dsPIC devices. It is the most popular combination debugging/programming tool from Microchip.
The REAL ICE emulator is similar to the ICD, with the addition of better debugging features, and various add-on modules that expand its usage scope. The ICE is a family of discontinued in-circuit emulators for PIC and dsPIC devices, and is currently superseded by the REAL ICE. |
Thoracic ganglia | The thoracic ganglia are paravertebral ganglia. The thoracic portion of the sympathetic trunk typically has 12 thoracic ganglia. Emerging from the ganglia are thoracic splanchnic nerves (the cardiopulmonary, the greater, lesser, and least splanchnic nerves) that help provide sympathetic innervation to thoracic and abdominal structures. The thoracic part of sympathetic trunk lies posterior to the costovertebral pleura and is hence not a content of the posterior mediastinum Also, the ganglia of the thoracic sympathetic trunk have both white and gray rami communicantes. The white rami communicantes carry sympathetic fibers arising in the spinal cord into the sympathetic trunk, while the gray rami communicantes carry postganglionic nerve fibers of the sympathetic nervous system back to the spinal nerves. |
Thermodynamic process | Classical thermodynamics considers three main kinds of thermodynamic process: (1) changes in a system, (2) cycles in a system, and (3) flow processes. |
Dynamic knowledge repository | The dynamic knowledge repository (DKR) is a concept developed by Douglas C. Engelbart as a primary strategic focus for allowing humans to address complex problems. He has proposed that a DKR will enable us to develop a collective IQ greater than any individual's IQ. References and discussion of Engelbart's DKR concept are available at the Doug Engelbart Institute. |
Dibenzylaniline | Dibenzylaniline or N,N-Dibenzylaniline is a chemical compound consisting of aniline with two benzyl groups as substituents on the nitrogen.
The substance crystallizes in the monoclinic crystal system. The space group is P21/n. The unit cell dimensions are a=11.751 Å b=9.060 Å c=29.522 Å, and β=94.589°. Each unit cell contains two molecules. In the solid van der Waals forces hold it together. The substance can also crystallize in alternate monoclinic form. |
Ligamentum venosum | The ligamentum venosum, also known as Arantius' ligament, is the fibrous remnant of the ductus venosus of the fetal circulation. Usually, it is attached to the left branch of the portal vein within the porta hepatis. It may be continuous with the round ligament of liver.
It is invested by the peritoneal folds of the lesser omentum within a fissure on the visceral/posterior surface of the liver between the caudate and main parts of the left lobe.
It is grouped with the liver in Terminologia Anatomica. |
Hemstitch | Hemstitch or hem-stitch is a decorative drawn thread work or openwork hand-sewing technique for embellishing the hem of clothing or household linens. Unlike an ordinary hem, hemstitching can employ embroidery thread in a contrasting color so as to be noticeable. In hemstitching, one or more threads are drawn out of the fabric parallel and next to the turned hem, and stitches bundle the remaining threads in a variety of decorative patterns while securing the hem in place. Multiple rows of drawn thread work may be used.Hand hemstitching can be imitated by a hemstitching machine which has a piercer that pierces holes into the fabric and two separate needles that sew the hole open. There are also hemstitcher attachments for home sewing machines, and simple decorative stitches can be used over drawn threads to suggest hand-hemstitching. |
Solar eclipse of April 8, 2005 | A total solar eclipse occurred at the Moon's ascending node on April 8, 2005. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. |
Spare tire | A spare tire (or stepney in some countries) is an additional tire (or tyre - see spelling differences) carried in a motor vehicle as a replacement for one that goes flat, has a blowout, or has another emergency. Spare tire is generally a misnomer, as almost all vehicles actually carry an entire wheel with a tire mounted on it as a spare rather than just a tire, as fitting a tire to a wheel would require a motorist to carry additional, specialized equipment. However, some spare tires ("space-saver" and "donut" types) are not meant to be driven long distances. Space-savers have a maximum speed of around 50 mph (80 km/h).When replacing a damaged tire, placing the compact spare on a non-drive axle will prevent damage to the drivetrain. If placed on a drivetrain axle, the smaller-diameter tire can put stress on the differential causing damage and reducing handling. |
Physics outreach | Physics outreach encompasses facets of science outreach and physics education, and a variety of activities by schools, research institutes, universities, clubs and institutions such as science museums aimed at broadening the audience for and awareness and understanding of physics. While the general public may sometimes be the focus of such activities, physics outreach often centers on developing and providing resources and making presentations to students, educators in other disciplines, and in some cases researchers within different areas of physics. |
Bokashi (horticulture) | Bokashi is a process that converts food waste and similar organic matter into a soil amendment which adds nutrients and improves soil texture. It differs from traditional composting methods in several respects. The most important are: The input matter is fermented by specialist bacteria, not decomposed.
The fermented matter is fed directly to field or garden soil, without requiring further time to mature.
As a result, virtually all input carbon, energy and nutrients enter the soil food web, having been neither emitted in greenhouse gases and heat nor leached out.Other names attributed to this process include bokashi composting, bokashi fermentation and fermented composting. |
Comic Sans | Comic Sans MS (also known by its most common name Comic Sans) is a sans-serif typeface designed by Vincent Connare and released in 1994 by Microsoft Corporation. It is a non-connecting script inspired by comic book lettering, intended for use in cartoon speech bubbles, as well as in other casual environments, such as informal documents and children's materials.The typeface has been supplied with Microsoft Windows since the introduction of Windows 95, initially as a supplemental font in Microsoft Plus! Pack and later in Microsoft Comic Chat. Describing it, Microsoft has explained that "this casual but legible face has proved very popular with a wide variety of people."The typeface's widespread use, often in situations it was not intended for, has been the subject of criticism and ridicule. |
Variation and Evolution in Plants | Variation and Evolution in Plants is a book written by G. Ledyard Stebbins, published in 1950. It is one of the key publications embodying the modern synthesis of evolution and genetics, as the first comprehensive publication to discuss the relationship between genetics and natural selection in plants. The book has been described by plant systematist Peter H. Raven as "the most important book on plant evolution of the 20th century" and it remains one of the most cited texts on plant evolution.[1] |
Hadamard product (matrices) | In mathematics, the Hadamard product (also known as the element-wise product, entrywise product: ch. 5 or Schur product) is a binary operation that takes in two matrices of the same dimensions and returns a matrix of the multiplied corresponding elements. This operation can be thought as a "naive matrix multiplication" and is different from the matrix product. It is attributed to, and named after, either French-Jewish mathematician Jacques Hadamard or German-Jewish mathematician Issai Schur. |
Hyperbaric treatment schedules | Hyperbaric treatment schedules or hyperbaric treatment tables, are planned sequences of events in chronological order for hyperbaric pressure exposures specifying the pressure profile over time and the breathing gas to be used during specified periods, for medical treatment. Hyperbaric therapy is based on exposure to pressures greater than normal atmospheric pressure, and in many cases the use of breathing gases with oxygen content greater than that of air. |
Drugs in Cambodia | In Cambodia, drugs are readily available, thus, easy to access, including illegal substances. |
Mercedes Benz sign | Mercedes Benz sign is a radiological sign seen due to the presence of gallstones. It is a triradiate shadow, characteristic of the Mercedes-Benz automobile trademark. The sign occurs due to the gas fissuring within the gallstone. |
1 Persei | 1 Persei (1 Per) is an eclipsing binary star in the constellation Perseus. Its uneclipsed apparent magnitude is 5.49. The binary star consists of two B2 type main-sequence stars in a 25.9 day eccentric orbit. The stars are surrounded by a faint cloud of gas visible in mid-infrared, although whether they are the origin of the gas or simply passing through it is unclear. |
Riser card | A Riser card is a printed circuit board that gives a computer motherboard the option for additional expansion cards to be added to the computer. |
Hierarchy problem | In theoretical physics, the hierarchy problem is the problem concerning the large discrepancy between aspects of the weak force and gravity. There is no scientific consensus on why, for example, the weak force is 1024 times stronger than gravity. |
Spike-triggered average | The spike-triggered averaging (STA) is a tool for characterizing the response properties of a neuron using the spikes emitted in response to a time-varying stimulus. The STA provides an estimate of a neuron's linear receptive field. It is a useful technique for the analysis of electrophysiological data. |
Cefacetrile | Cefacetrile (INN, also spelled cephacetrile) is a broad-spectrum first generation cephalosporin antibiotic effective in gram-positive and gram-negative bacterial infections. It is a bacteriostatic antibiotic. Cefacetrile is marketed under the trade names Celospor, Celtol, and Cristacef, and as Vetimast for the treatment of mammary infections in lactating cows. |
ISIRI 13139 | ISIRI 13139 is a standard published by the Institute of Standards and Industrial Research of Iran (ISIRI) in 2011 based on Directive 2009/61/EC. It defines "Installation of lighting and light-signalling devices on wheeled agricultural and forestry tractors". |
Life with PlayStation | Life with PlayStation was an online multimedia application for the PlayStation 3 video game console on the PlayStation Network. The application had four channels, all of which revolved around a virtual globe that displayed information according to the channel. The application also included a client for Folding@home, a distributed computing project aimed at disease research. As of November 2012 the service has been discontinued. |
Why Things Bite Back | Why Things Bite Back: Technology and the Revenge of Unintended Consequences is a 1997 book by former executive editor for physical science and history at Princeton University Press Edward Tenner that is an account and geography of modern technology.Edward Tenner's book describes how technology has had unintended effects on society. |
PELO | Protein pelota homolog is a protein that in humans is encoded by the PELO gene.This gene encodes a protein which contains a conserved nuclear localization signal. The encoded protein may have a role in spermatogenesis, cell cycle control, and in meiotic cell division. In yeasts, the Dom34-Hbs1 complex (with ABCE1) that it forms is responsible for reactivating ribosomes and for recovering those stuck on mRNAs. It is a paralog of the release factor eRF1. |
Desmoglein | The desmogleins are a family of desmosomal cadherins consisting of proteins DSG1, DSG2, DSG3, and DSG4. They play a role in the formation of desmosomes that join cells to one another. |
V2 word order | In syntax, verb-second (V2) word order is a sentence structure in which the finite verb of a sentence or a clause is placed in the clause's second position, so that the verb is preceded by a single word or group of words (a single constituent). |
Entropic uncertainty | In quantum mechanics, information theory, and Fourier analysis, the entropic uncertainty or Hirschman uncertainty is defined as the sum of the temporal and spectral Shannon entropies. It turns out that Heisenberg's uncertainty principle can be expressed as a lower bound on the sum of these entropies. This is stronger than the usual statement of the uncertainty principle in terms of the product of standard deviations. |
Web of Spies | Web of Spies is the eleventh novel in the long-running Nick Carter-Killmaster series of spy novels. Carter is a US secret agent, code-named N-3, with the rank of Killmaster. He works for AXE – a secret arm of the US intelligence services. |
Muscles of mastication | There are four classical muscles of mastication. During mastication, three muscles of mastication (musculi masticatorii) are responsible for adduction of the jaw, and one (the lateral pterygoid) helps to abduct it. All four move the jaw laterally. Other muscles, usually associated with the hyoid, such as the mylohyoid muscle, are responsible for opening the jaw in addition to the lateral pterygoid. |
Rising Card | The Rising Card is a popular category of magical illusion in which the magician causes randomly selected playing cards to spontaneously rise from the center of a deck. Many variations of this trick exist and are performed widely. The effect can be accomplished using a variety of methods and techniques, ranging from pure sleight of hand to complex electronic and mechanical solutions. |
Flat-panel display | A flat-panel display (FPD) is an electronic display used to display visual content such as text or images. It is present in consumer, medical, transportation, and industrial equipment.
Flat-panel displays are thin, lightweight, provide better linearity and are capable of higher resolution than typical consumer-grade TVs from earlier eras. They are usually less than 10 centimetres (3.9 in) thick. While the highest resolution for consumer-grade CRT televisions was 1080i, many flat-panel displays in the 2020s are capable of 1080p and 4K resolution.
In the 2010s, portable consumer electronics such as laptops, mobile phones, and portable cameras have used flat-panel displays since they consume less power and are lightweight. As of 2016, flat-panel displays have almost completely replaced CRT displays. |
Chu space | Chu spaces generalize the notion of topological space by dropping the requirements that the set of open sets be closed under union and finite intersection, that the open sets be extensional, and that the membership predicate (of points in open sets) be two-valued. The definition of continuous function remains unchanged other than having to be worded carefully to continue to make sense after these generalizations. |
Subject–verb–object word order | In linguistic typology, subject–verb–object (SVO) is a sentence structure where the subject comes first, the verb second, and the object third. Languages may be classified according to the dominant sequence of these elements in unmarked sentences (i.e., sentences in which an unusual word order is not used for emphasis). English is included in this group. An example is "Sam ate yogurt." SVO is the second-most common order by number of known languages, after SOV. Together, SVO and SOV account for more than 87% of the world's languages. |
Butyl rubber | Butyl rubber, sometimes just called "butyl", is a synthetic rubber, a copolymer of isobutylene with isoprene. The abbreviation IIR stands for isobutylene isoprene rubber. Polyisobutylene, also known as "PIB" or polyisobutene, (C4H8)n, is the homopolymer of isobutylene, or 2-methyl-1-propene, on which butyl rubber is based. Butyl rubber is produced by polymerization of about 98% of isobutylene with about 2% of isoprene. Structurally, polyisobutylene resembles polypropylene, but has two methyl groups substituted on every other carbon atom, rather than one. Polyisobutylene is a colorless to light yellow viscoelastic material. It is generally odorless and tasteless, though it may exhibit a slight characteristic odor. |
Water slide | A water slide (also referred to as a flume, or water chute) is a type of slide designed for warm-weather or indoor recreational use at water parks. Water slides differ in their riding method and therefore size. Some slides require riders to sit directly on the slide, or on a raft or tube designed to be used with the slide. |
Comps (casino) | Comps are complimentary items and services given out by casinos to encourage players to gamble. The amount and quality of comps that a player is given usually depends on what games they play, how much they bet, and how long they play. |
Effective mass (spring–mass system) | In a real spring–mass system, the spring has a non-negligible mass m . Since not all of the spring's length moves at the same velocity v as the suspended mass M , its kinetic energy is not equal to 12mv2 . As such, m cannot be simply added to M to determine the frequency of oscillation, and the effective mass of the spring is defined as the mass that needs to be added to M to correctly predict the behavior of the system. |
Twimight | Twimight was an open source Android client for the social networking site Twitter. The client let users view in real time "tweets" or micro-blog posts on the Twitter website as well as publish their own. |
Vitellogenesis | Vitellogenesis is the process of yolk protein formation in the oocytes of non mammalian vertebrates during sexual maturation. The term vitellogenesis comes from the Latin vitellus ("egg yolk"). Yolk proteins, such as Lipovitellin and Phosvitin, provides maturing oocytes with the metabolic energy required for development. Vitellogenins are the precursor proteins that lead to yolk protein accumulation in the oocyte. Estrogen and vitellogenin production have a positive correlation. When estrogen production in the ovary is increased via the activation of the hypothalmo-pituitary axis it leads to heightened vitellogenin production in the liver. Vitellogenin production in the liver is the first step of vitellogenesis. Once Vitellogenins are released into the blood stream where they are then transported to the growing oocyte where they lead to yolk protein production. The transport of vitellogenins into the maturing oocyte is done via receptor mediated endocytosis which is a low-density lipoprotein receptor (LDLR). Yolk is a lipoprotein composed of proteins, phospholipids and neutral fats along with a small amount of glycogen. The yolk is synthesised in the liver of the female parent in soluble form. Through circulation it is transported to the follicle cells that surround the maturing ovum, and is deposited in the form of yolk platelets and granules in the ooplasm. The mitochondria and Golgi complex are said to bring about the conversion of the soluble form of yolk into insoluble granules or platelets. |
Norpsilocin | Norpsilocin (4-HO-NMT) is tryptamine alkaloid recently discovered in 2017 in the psychedelic mushroom Psilocybe cubensis. It is hypothesized to be a dephosphorylated metabolite of baeocystin. Norpsilocin was found to be a near full agonist of the 5-HT2A receptor. It is also more potent than psilocin. |
Comparison of programming languages (basic instructions) | This article compares a large number of programming languages by tabulating their data types, their expression, statement, and declaration syntax, and some common operating-system interfaces. |
Urotensin II–related peptide | Urotensin II-related peptide (URP) is a cyclic neuropeptide that is found in all vertebrates that have been genome sequenced so far. It has a long lasting hypotensive effect and may also regulate reproduction. It is part of the Urotensin II system and is one of the two endogenous ligands for rats, mice, and possibly humans. |
Arithmaurel | The Arithmaurel was a mechanical calculator that had a very intuitive user interface, especially for multiplying and dividing numbers because the result was displayed as soon as the operands were entered. It was first patented in France by Timoleon Maurel, in 1842. It received a gold medal at the French national show in Paris in 1849. Its complexity and the fragility of its design prevented it from being manufactured.Its name came from the concatenation of Arithmometer, the machine that inspired its design and of Maurel, the name of its inventor. The heart of the machine uses one Leibniz stepped cylinder driven by a set of differential gears. |
Allomone | An allomone (from Ancient Greek ἄλλος allos "other" and pheromone) is a type of semiochemical produced and released by an individual of one species that affects the behaviour of a member of another species to the benefit of the originator but not the receiver. Production of allomones is a common form of defense against predators, particularly by plant species against insect herbivores. In addition to defense, allomones are also used by organisms to obtain their prey or to hinder any surrounding competitors.Many insects have developed ways to defend against these plant defenses (in an evolutionary arms race). One method of adapting to allomones is to develop a positive reaction to them; the allomone then becomes a kairomone. Others alter the allomones to form pheromones or other hormones, and yet others adopt them into their own defensive strategies, for example by regurgitating them when attacked by an insectivorous insect. |
Rice paper | "Rice paper" has many varieties such as rice paper made from tree bark to make drawing and writing paper or from rice flour and tapioca flour and then mixed with salt and water to produce a thin rice cake and dried to become harder and paper-like. It is used to wrap many ingredients when eating. Vietnam is the only country that creates edible rice paper from the process of making rice noodles and pho noodles. |
Lectin pathway | The lectin pathway or lectin complement pathway is a type of cascade reaction in the complement system, similar in structure to the classical complement pathway, in that, after activation, it proceeds through the action of C4 and C2 to produce activated complement proteins further down the cascade. In contrast to the classical complement pathway, the lectin pathway does not recognize an antibody bound to its target. The lectin pathway starts with mannose-binding lectin (MBL) or ficolin binding to certain sugars. |
Reliability-centered maintenance | Reliability-centered maintenance (RCM) is a concept of maintenance planning to ensure that systems continue to do what their user require in their present operating context. Successful implementation of RCM will lead to increase in cost effectiveness, reliability, machine uptime, and a greater understanding of the level of risk that the organization is managing. |
Family tree | A family tree, also called a genealogy or a pedigree chart, is a chart representing family relationships in a conventional tree structure. More detailed family trees, used in medicine and social work, are known as genograms. |
Thiothionyl fluoride | Thiothionyl fluoride is a chemical compound of fluorine and sulfur, with the chemical formula S=SF2. It is an isomer of disulfur difluoride (difluorodisulfane) F−S−S−F. |
Population momentum | Population momentum is a consequence of the demographic transition. Population momentum explains why a population will continue to grow even if the fertility rate declines. Population momentum occurs because it is not only the number of children per woman that determine population growth, but also the number of women in reproductive age. Eventually, when the fertility rate reaches the replacement rate and the population size of women in the reproductive age bracket stabilizes, the population achieves equilibrium and population momentum comes to an end. Population momentum is defined as the ratio of the size of the population at that new equilibrium level to the size of the initial population. Population momentum usually occurs in populations that are growing. |
Carminite | Carminite (PbFe3+2(AsO4)2(OH)2) is an anhydrous arsenate mineral containing hydroxyl. It is a rare secondary mineral that is structurally related to palermoite (Li2SrAl4(PO4)4(OH)4). Sewardite (CaFe3+2(AsO4)2(OH)2) is an analogue of carminite, with calcium in sewardite in place of the lead in carminite. Mawbyite is a dimorph (same formula, different structure) of carminite; mawbyite is monoclinic and carminite is orthorhombic. It has a molar mass of 639.87 g. It was discovered in 1850 and named for the characteristic carmine colour. |
Alternating multilinear map | In mathematics, more specifically in multilinear algebra, an alternating multilinear map is a multilinear map with all arguments belonging to the same vector space (for example, a bilinear form or a multilinear form) that is zero whenever any pair of arguments is equal. More generally, the vector space may be a module over a commutative ring.
The notion of alternatization (or alternatisation) is used to derive an alternating multilinear map from any multilinear map with all arguments belonging to the same space. |
WinUSB | WinUSB is a generic USB driver provided by Microsoft, for their operating systems starting with Windows Vista but which is also available for Windows XP. It is aimed at simple devices that are accessed by only one application at a time (for example instruments like weather stations, devices that only need a diagnostic connection or for firmware upgrades). It enables the application to directly access the device through a simple software library. The library provides access to the pipes of the device. WinUSB exposes a client API that enables developers to work with USB devices from user-mode. Starting with Windows 7, USB MTP devices use WinUSB instead of the kernel mode filter driver. |
Gastrolith | A gastrolith, also called a stomach stone or gizzard stone, is a rock held inside a gastrointestinal tract. Gastroliths in some species are retained in the muscular gizzard and used to grind food in animals lacking suitable grinding teeth. In other species the rocks are ingested and pass through the digestive system and are frequently replaced. The grain size depends upon the size of the animal and the gastrolith's role in digestion. Other species use gastroliths as ballast. Particles ranging in size from sand to cobble have been documented. |
Moist static energy | The moist static energy is a thermodynamic variable that describes the state of an air parcel, and is similar to the equivalent potential temperature. The moist static energy is a combination of a parcel's enthalpy due to an air parcel's internal energy and energy required to make room for it, its potential energy due to its height above the surface, and the latent energy due to water vapor present in the air parcel. It is a useful variable for researching the atmosphere because, like several other similar variables, it is approximately conserved during adiabatic ascent and descent.The moist static energy, S, can be described mathematically as: S=Cp⋅T+g⋅z+Lv⋅q where Cp is the specific heat at constant pressure, T is the absolute air temperature, g is the gravitational constant, z is the geopotential height above sea level, Lv is the latent heat of vaporization, and q is water vapor specific humidity. Note that many texts use mixing ratio r in place of specific humidity q because these values tend to be close (within a few percent) under normal atmospheric conditions, but this is an approximation and not strictly correct. |
Transmembrane protein 217 | Transmembrane Protein 217 is a protein encoded by the gene TMEM217. TMEM217 has been found to have expression correlated with the lymphatic system and endothelial tissues and has been predicted to have a function linked to the cytoskeleton. |
Privateer (motorsport) | In motorsport, a privateer is usually an entrant into a racing event that is not directly supported by an automobile or motorcycle manufacturer. Privateers teams are often found competing in rally, circuit racing and motorcycle racing events and often include competitors who build and maintain their own vehicles and motorcycles. In previous Formula One seasons, privately owned teams would race using the chassis of another team or constructor in preference to building their own car; the Concorde Agreement now prohibits this practice. Increasingly the term is being used in an F1 context to refer to teams who are not at least part-owned by large corporations, such as Williams F1 and McLaren F1 Team. |
Bytownite | Bytownite is a calcium rich member of the plagioclase solid solution series of feldspar minerals with composition between anorthite and labradorite. It is usually defined as having between 70 and 90%An (formula: (Ca0.7−0.9Na0.3−0.1)[Al(Al,Si)Si2O8]). Like others of the series, bytownite forms grey to white triclinic crystals commonly exhibiting the typical plagioclase twinning and associated fine striations.
The specific gravity of bytownite varies between 2.74 and 2.75. The refractive indices ranges are nα=1.563 – 1.572, nβ=1.568 – 1.578, and nγ=1.573 – 1.583. Precise determination of these two properties with chemical, X-ray diffraction, or petrographic analysis are required for identification. |
DRIP-seq | DRIP-seq (DRIP-sequencing) is a technology for genome-wide profiling of a type of DNA-RNA hybrid called an "R-loop". DRIP-seq utilizes a sequence-independent but structure-specific antibody for DNA-RNA immunoprecipitation (DRIP) to capture R-loops for massively parallel DNA sequencing. |
RJ TextEd | RJ TextEd is a freeware Unicode text and source code editor for Windows, that can also be used as a simple web development tool.
The editor uses a variety of techniques for syntax highlighting in the source. It can use auto completion and hints to assist in editing source code. Previews of HTML/ASP/PHP code are supported. A syntax file editor is included.The interface is based on the MDI with tabs for editing multiple files and open document manipulation.
TextEd includes a web browser, a file manager, and a CSS editor, as well as various tools for web developers. |
Experimental and Applied Acarology | Experimental and Applied Acarology is a monthly peer-reviewed scientific journal covering all aspects of acarology. It was established in 1985 and is published by Springer Science+Business Media. The editor-in-chief is Maurice W. Sabelis (University of Amsterdam). |
Pascal Costanza | Pascal Costanza is a research scientist at the ExaScience Lab at Intel Belgium. He is known in the field of functional programming in LISP as well as in the aspect-oriented programming (AOP) community for contributions to this field by applying AOP through Lisp1. More recently, he has developed Context-oriented programming, with Robert Hirschfeld. |
Urea transporter 2 | Urea transporter 2 is a protein that in humans is encoded by the SLC14A2 gene. |
One size fits all | "One size fits all" is a description for a product that would fit in all instances. The term has been extended to mean one style or procedure would fit in all related applications. It is an alternative for "Not everyone fits the mold." It has been in use for over five decades. There are both positive and negative uses of the phrase. |
Selectivity factor | Selectivity factor is a quantifiable measure of how efficient an antibiotic is during the process of gene selection. It measures of the capacity an antibiotic to select for transfected (resistant) cells that contain a selectable marker, while killing untransfected (sensitive) cells that do not contain a selectable marker. A selectivity factor higher than 10 is optimal. This means the concentration of antibiotic is sufficient to kill untransfected cells but not toxic enough to kill transfected cells. A selectivity factor lower than 10 means the concentration of antibiotic needed for selection is too close to the toxic concentration for the transfected cells. As a result, fewer transfected cells survive and more untransfected cells survive. In this case an alternative antibiotic should be considered. |
QED vacuum | The QED vacuum or quantum electrodynamic vacuum is the field-theoretic vacuum of quantum electrodynamics. It is the lowest energy state (the ground state) of the electromagnetic field when the fields are quantized. When Planck's constant is hypothetically allowed to approach zero, QED vacuum is converted to classical vacuum, which is to say, the vacuum of classical electromagnetism.Another field-theoretic vacuum is the QCD vacuum of the Standard Model. |
Redescending M-estimator | In statistics, redescending M-estimators are Ψ-type M-estimators which have ψ functions that are non-decreasing near the origin, but decreasing toward 0 far from the origin. Their ψ functions can be chosen to redescend smoothly to zero, so that they usually satisfy ψ(x) = 0 for all x with |x| > r, where r is referred to as the minimum rejection point. |
Efference copy | In physiology, an efference copy or efferent copy is an internal copy of an outflowing (efferent), movement-producing signal generated by an organism's motor system. It can be collated with the (reafferent) sensory input that results from the agent's movement, enabling a comparison of actual movement with desired movement, and a shielding of perception from particular self-induced effects on the sensory input to achieve perceptual stability. Together with internal models, efference copies can serve to enable the brain to predict the effects of an action.An equal term with a different history is corollary discharge.Efference copies are important in enabling motor adaptation such as to enhance gaze stability. They have a role in the perception of self and nonself electric fields in electric fish. They also underlie the phenomenon of tickling. |
Nusinersen | Nusinersen, marketed as Spinraza, is a medication used in treating spinal muscular atrophy (SMA), a rare neuromuscular disorder. In December 2016, it became the first approved drug used in treating this disorder.
Since the condition it treats is so rare, Nusinersen has so-called "orphan drug" designation in the United States and the European Union. |
Very short patch repair | Very short patch (VSP) repair is a DNA repair system that removes GT mismatches created by the deamination of 5-methylcytosine to thymine. This system exists because the glycosylases which normally target deaminated bases cannot target thymine (it being one of the regular four bases in DNA).
The components of the system are MutS, which binds to the GT mismatch, the VSR endonuclease, which cuts the DNA, and MutL, which recruits the UvrD helicase.
VSR (very short patch repair) endonucleases occur in a variety of bacteria. They work by cutting, or rather, making a nick in DNA if the base pair is mutated or damaged. |
Flo pass | The Flo Pass (Norwegian: Flo-pasningen) is a tactic used in association football, associated with the Norwegian national team in the early to mid-1990s. In a 4–5–1 formation, the full back hits a very long cross-field pass forward to a player on the opposite flank (sometimes called a wide target man), who would head the ball to either one of the central midfielders or to the striker. |
Responsibility-driven design | Responsibility-driven design is a design technique in object-oriented programming, which improves encapsulation by using the client–server model. It focuses on the contract by considering the actions that the object is responsible for and the information that the object shares. It was proposed by Rebecca Wirfs-Brock and Brian Wilkerson.
Responsibility-driven design is in direct contrast with data-driven design, which promotes defining the behavior of a class along with the data that it holds. Data-driven design is not the same as data-driven programming, which is concerned with using data to determine the control flow, not class design. |
Pit-house | A pit-house (or pit house, pithouse) is a house built in the ground and used for shelter. Besides providing shelter from the most extreme of weather conditions, these structures may also be used to store food (just like a pantry, a larder, or a root cellar) and for cultural activities like the telling of stories, dancing, singing and celebrations. General dictionaries also describe a pit-house as a dugout, and it has similarities to a half-dugout.In archaeology, a pit-house is frequently called a sunken-featured building and occasionally (grub-)hut or grubhouse, after the German name Grubenhaus They are found in numerous cultures around the world, including the people of the Southwestern United States, the ancestral Pueblo, the ancient Fremont and Mogollon cultures, the Cherokee, the Inuit, the people of the Plateau, and archaic residents of Wyoming (Smith 2003) in North America; Archaic residents of the Lake Titicaca Basin (Craig 2005) in South America; Anglo-Saxons in Europe; and the Jōmon people in Japan. Anglo-Saxon pit-houses may have actually represented buildings for other functions than just dwellings. |
Three wishes joke | The three wishes joke (or genie joke) is a joke format in which a character is given three wishes by a supernatural being, and fails to make the best use of them. Common scenarios include releasing a genie from a lamp, catching and agreeing to release a mermaid or magical fish, or crossing paths with the devil. The first two wishes go as expected, with the third wish being misinterpreted, or granted in an unexpected fashion that doesn't reflect the intent of the wish. Alternatively, the wishes are split between three people, with the last person's wish inadvertently or intentionally thwarting or undoing the wishes of the other characters. An example of the three wishes joke runs as follows: Three men are stranded on a desert island, when a bottle washes up on the shore. When they uncork the bottle, a genie appears and offers three wishes. The first wishes to be taken to Paris. The genie snaps his fingers, and the man suddenly finds himself standing in front of the Eiffel Tower. The second man wishes that he were in Hollywood, and with a snap of the genie's fingers, he finds himself on a Tinseltown movie set. The third man, now alone on the island, looks around and says, "I wish my friends were back." |
New York sour | The New York sour is an IBA official cocktail. Largely similar to the whiskey sour, the New York sour adds a float of dry red wine to the drink. |
Katsuobushi | Katsuobushi (Japanese: 鰹節) is simmered, smoked and fermented skipjack tuna (Katsuwonus pelamis, sometimes referred to as bonito). It is also known as bonito flakes or broadly as okaka (おかか).
Shaved katsuobushi and dried kelp—kombu—are the main ingredients of dashi, a broth that forms the basis of many soups (such as miso) and sauces (e.g., soba no tsukejiru) in Japanese cuisine.
Katsuobushi's distinct umami taste comes from its high inosinic acid content. Traditionally made katsuobushi, known as karebushi, is deliberately fermented with Aspergillus glaucus fungus in order to reduce moisture. Katsuobushi has also been shown to impart kokumi (a term translated as "heartiness"). |
Bone morphogenetic protein 2 | Bone morphogenetic protein 2 or BMP-2 belongs to the TGF-β superfamily of proteins. |
Extrinsic pathway | In molecular biology, the term extrinsic pathway may refer to multiple cascades of protein interactions.
The extrinsic pathway of apoptosis refers to cell death induced by external factors that activate the death-inducing signaling complex.
The extrinsic pathway of blood coagulation is also known as the tissue factor pathway and refers to a cascade of enzymatic reactions resulting in blood clotting and is done with the addition of injured tissue cells.
a number of extracurricular molecules is specialised to induce apoptosis.These extracurricular signals molecules bind with cell surface receptors (termed death receptors). |
Fire-safe polymers | Fire-safe polymers are polymers that are resistant to degradation at high temperatures. There is need for fire-resistant polymers in the construction of small, enclosed spaces such as skyscrapers, boats, and airplane cabins. In these tight spaces, ability to escape in the event of a fire is compromised, increasing fire risk. In fact, some studies report that about 20% of victims of airplane crashes are killed not by the crash itself but by ensuing fires. Fire-safe polymers also find application as adhesives in aerospace materials, insulation for electronics, and in military materials such as canvas tenting.Some fire-safe polymers naturally exhibit an intrinsic resistance to decomposition, while others are synthesized by incorporating fire-resistant additives and fillers. Current research in developing fire-safe polymers is focused on modifying various properties of the polymers such as ease of ignition, rate of heat release, and the evolution of smoke and toxic gases. Standard methods for testing polymer flammability vary among countries; in the United States common fire tests include the UL 94 small-flame test, the ASTM E 84 Steiner Tunnel, and the ASTM E 622 National Institute of Standards and Technology (NIST) smoke chamber. Research on developing fire-safe polymers with more desirable properties is concentrated at the University of Massachusetts Amherst and at the Federal Aviation Administration where a long-term research program on developing fire-safe polymers was begun in 1995. The Center for UMass/Industry Research on Polymers (CUMIRP) was established in 1980 in Amherst, MA as a concentrated cluster of scientists from both academia and industry for the purpose of polymer science and engineering research. |
Geodemographic segmentation | In marketing, geodemographic segmentation is a multivariate statistical classification technique for discovering whether the individuals of a population fall into different groups by making quantitative comparisons of multiple characteristics with the assumption that the differences within any group should be less than the differences between groups. |
Virulent Newcastle disease | Virulent Newcastle disease (VND), formerly exotic Newcastle disease, is a contagious viral avian disease affecting many domestic and wild bird species; it is transmissible to humans. Though it can infect humans, most cases are non-symptomatic; rarely it can cause a mild fever and influenza-like symptoms and/or conjunctivitis in humans. Its effects are most notable in domestic poultry due to their high susceptibility and the potential for severe impacts of an epizootic on the poultry industries. It is endemic to many countries. No treatment for VND is known, but the use of prophylactic vaccines and sanitary measures reduces the likelihood of outbreaks. |
QuarkXPress | QuarkXPress is desktop publishing software for creating and editing complex page layouts in a WYSIWYG (What You See Is What You Get) environment. It runs on macOS and Windows. It was first released by Quark, Inc. in 1987 and is still owned and published by them. |
ARHGAP9 | Rho GTPase-activating protein 9 is an enzyme that in humans is encoded by the ARHGAP9 gene. |
Immunodeficiency with hyperimmunoglobulin M | Immunodeficiency with hyperimmunoglobulin M is a rare disorder characterized by recurrent infections, low or absent IgG, IgE, and IgA levels, and normal or elevated levels of IgM and IgD.: 84 |
Tales of VS. | Tales of VS. (テイルズ オブ バーサス, Teirusu Obu Bāsasu) (pronounced as "Tales of Versus") is a crossover fighting game featuring various characters across the Tales video game series. It was developed by Matrix Software and published by Namco Bandai Games for the PlayStation Portable on August 6, 2009 in Japan. It was not localized for release in any other regions. |
Hughes procedure | The Hughes procedure is an oculoplastic procedure which is performed to reconstruct a lower eyelid defect. It is usually performed as a 2-stage procedure.The most common use for the Hughes procedure is reconstruction after the removal of a lower eyelid skin cancer.The result aims to recreate the normal appearance and function of the lid. |
Vimentin | Vimentin is a structural protein that in humans is encoded by the VIM gene. Its name comes from the Latin vimentum which refers to an array of flexible rods. |
Stop signal | In telecommunication, a stop signal is a signal that marks the end of part of a transmission, for example: In asynchronous serial communication, a signal at the end of a character that prepares the receiving device for the reception of a subsequent character. A stop signal is usually limited to one signal element having any duration equal to or greater than a specified minimum value. |
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