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In information theory and communication , the Slepian–Wolf coding , also known as the Slepian–Wolf bound , is a result in distributed source coding discovered by David Slepian and Jack Wolf in 1973. It is a method of theoretically coding two lossless compressed correlated sources . [ 1 ]
Distributed coding is the cod... | https://en.wikipedia.org/wiki/Slepian–Wolf_coding |
Slewing is the rotation of an object around an axis, usually the z axis . An example is a radar scanning 360 degrees by slewing around the z axis. This is also common terminology in astronomy. The process of rotating a telescope to observe a different region of the sky is referred to as slewing.
The term slewing is al... | https://en.wikipedia.org/wiki/Slewing |
Slice is a 2020 oil painting by the American artist Jasper Johns .
The work is a horizontal, mostly black oil painting that contains references to two outside sources: an anatomical diagram of a knee drawn by a Cameroonian émigré student Jéan-Marc Togodgue; and a map of the distribution of galaxies in a slice of the u... | https://en.wikipedia.org/wiki/Slice_(painting) |
The slice preparation or brain slice is a laboratory technique in electrophysiology that allows the study of neurons from various brain regions in isolation from the rest of the brain, in an ex-vivo condition. Brain tissue is initially sliced via a tissue slicer then immersed in artificial cerebrospinal fluid (aCSF) fo... | https://en.wikipedia.org/wiki/Slice_preparation |
A slicer is an effects unit which is similar to a tremolo , vibrato , phaser , or autopan . It combines a modulation sequence with a noise gate or envelope filter to create a percussive and rhythmic effect like a helicopter, with rapid cutting out and coming in—on and off. [ 1 ] Most have variable speeds and depths, cr... | https://en.wikipedia.org/wiki/Slicer_(guitar_effect) |
Slicing the Truth: On the Computability Theoretic and Reverse Mathematical Analysis of Combinatorial Principles is a book on reverse mathematics in combinatorics , the study of the axioms needed to prove combinatorial theorems. It was written by Denis R. Hirschfeldt, based on a course given by Hirschfeldt at the Nation... | https://en.wikipedia.org/wiki/Slicing_the_Truth |
Slickline refers to a single strand wire which is used to run a variety of tools down into the wellbore for several purposes. It is used during well drilling operations in the oil and gas industry. In general,
it can also describe a niche of the industry that involves using a slickline truck or doing a slickline job. ... | https://en.wikipedia.org/wiki/Slickline |
A slide-tape work (often slide-tape presentation ) is an audiovisual work consisting of a slide show using a filmstrip machine with synchronised accompanying audio, traditionally audio tape . These have frequently been used for education and for tourism, but also include artistic uses.
The slide-tape presentation orig... | https://en.wikipedia.org/wiki/Slide-tape |
Sliding is a type of motion between two surfaces in contact. This can be contrasted to rolling motion. Both types of motion may occur in bearings .
The relative motion or tendency toward such motion between two surfaces is resisted by friction . This means that the force of friction always acts on an object in the dir... | https://en.wikipedia.org/wiki/Sliding_(motion) |
A sliding T bevel , also known as a bevel gauge or false square [ 1 ] is an adjustable gauge for setting and transferring angles. Different from the square , which is fixed and can only set a 90° angle , the sliding T bevel can set any angle and transfer it on another piece.
The bevel gauge is composed of two elements... | https://en.wikipedia.org/wiki/Sliding_T_bevel |
The sliding criterion (discontinuity) is a tool to estimate easily the shear strength properties of a discontinuity in a rock mass based on visual and tactile (i.e. by feeling) characterization of the discontinuity . [ 1 ] [ 2 ] [ 3 ] [ 4 ] The shear strength of a discontinuity is important in, for example, tunnel , fo... | https://en.wikipedia.org/wiki/Sliding_criterion_(geotechnical_engineering) |
The sliding filament theory explains the mechanism of muscle contraction based on muscle proteins that slide past each other to generate movement. [ 1 ] According to the sliding filament theory, the myosin ( thick filaments ) of muscle fibers slide past the actin ( thin filaments ) during muscle contraction, while the ... | https://en.wikipedia.org/wiki/Sliding_filament_theory |
In lattice theory , a mathematical discipline, a finite lattice is slim if no three join-irreducible elements form an antichain . [ 1 ] Every slim lattice is planar . A finite planar semimodular lattice is slim if and only if it contains no cover-preserving diamond sublattice M 3 (this is the original definition of a s... | https://en.wikipedia.org/wiki/Slim_lattice |
A slime layer in bacteria is an easily removable (e.g. by centrifugation ), unorganized layer of extracellular material that surrounds bacteria cells. Specifically, this consists mostly of exopolysaccharides , glycoproteins , and glycolipids . [ 1 ] Therefore, the slime layer is considered as a subset of glycocalyx .
... | https://en.wikipedia.org/wiki/Slime_layer |
Slingshot is a water purification device created by inventor Dean Kamen . [ 1 ] Powered by a Stirling engine running on a combustible fuel source, it claims to be able to produce drinking water from almost any source [ 2 ] by means of vapor compression distillation , [ 3 ] requires no filters, and can operate using cow... | https://en.wikipedia.org/wiki/Slingshot_(water_vapor_distillation_system) |
In philosophical logic , a slingshot argument is one of a group of arguments claiming to show that all true sentences stand for the same thing.
This type of argument was dubbed the " slingshot " by philosophers Jon Barwise and John Perry (1981) due to its disarming simplicity. It is usually said that versions of the ... | https://en.wikipedia.org/wiki/Slingshot_argument |
In materials science , slip is the large displacement of one part of a crystal relative to another part along crystallographic planes and directions. [ 1 ] Slip occurs by the passage of dislocations on close/packed planes, which are planes containing the greatest number of atoms per area and in close-packed directions ... | https://en.wikipedia.org/wiki/Slip_(materials_science) |
Slip bands or stretcher-strain marks are localized bands of plastic deformation in metals experiencing stresses. Formation of slip bands indicates a concentrated unidirectional slip on certain planes causing a stress concentration. Typically, slip bands induce surface steps (e.g., roughness due persistent slip bands du... | https://en.wikipedia.org/wiki/Slip_bands_in_metals |
A slip bond is a type of chemical noncovalent bond whose dissociation lifetime decreases with tensile force applied to the bond. This is the expected behaviour for chemical bonds, [ 1 ] but exceptions, like catch bonds exist.
This biochemistry article is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/Slip_bond |
Slip forming , continuous poured , continuously formed , or slipform construction is a construction method in which concrete is placed into a form that may be in continuous motion horizontally, or incrementally raised vertically.
In horizontal construction, such as roadways and curbs, the weight of the concrete, forms... | https://en.wikipedia.org/wiki/Slip_forming |
A slip joint is a mechanical construction allowing extension and compression in a linear structure of slip joint.
Slip joints can be designed to allow continuous relative motion of two components or it can allow an adjustment, by unclamping from one fixed position, and re-clamping to another. Examples of the latter a... | https://en.wikipedia.org/wiki/Slip_joint |
In materials science and soil mechanics , a slip line field or slip line field theory is a technique often used to analyze the stresses and forces involved in the major deformation of metals or soils . In essence, in some problems including plane strain and plane stress elastic-plastic problems, elastic part of the mat... | https://en.wikipedia.org/wiki/Slip_line_field |
The Slip melting point (SMP) or "slip point" is one conventional definition of the melting point of a waxy solid . It is determined by casting a 10 mm column of the solid in a glass tube with an internal diameter of about 1 mm and a length of about 80 mm, and then
immersing it in a temperature-controlled water bath . ... | https://en.wikipedia.org/wiki/Slip_melting_point |
Slip ratio is a means of calculating and expressing the slipping behavior of the wheel of an automobile . It is of fundamental importance in the field of vehicle dynamics, as it allows to understand the relationship between the deformation of the tire and the longitudinal forces (i.e. the forces responsible for forward... | https://en.wikipedia.org/wiki/Slip_ratio |
Slip ratio (or velocity ratio ) in gas–liquid (two-phase) flow, is defined as the ratio of the velocity of the gas phase to the velocity of the liquid phase. [ 1 ]
In the homogeneous model of two-phase flow , the slip ratio is by definition assumed to be unity (no slip). It is however experimentally observed that the ... | https://en.wikipedia.org/wiki/Slip_ratio_(gas–liquid_flow) |
In architecture , a slipcover is a modification of an older building facing by adding a new ornamental layer.
The slipcover was a popular treatment in the United States after World War II , as early twentieth-century building styles had fallen out of fashion. Constructing a slipcover with a contemporary design over an... | https://en.wikipedia.org/wiki/Slipcover_(architecture) |
Slipform stonemasonry is a method for making a reinforced concrete wall with stone facing in which stones and mortar are built up in courses within reusable slipforms . It is a cross between traditional mortared stone wall and a veneered stone wall. Short forms, up to 60 cm high, are placed on both sides of the wall to... | https://en.wikipedia.org/wiki/Slipform_stonemasonry |
A slippery sequence is a small section of codon nucleotide sequences (usually UUUAAAC) that controls the rate and chance of ribosomal frameshifting . A slippery sequence causes a faster ribosomal transfer which in turn can cause the reading ribosome to "slip." This allows a tRNA to shift by 1 base (−1) after it has pai... | https://en.wikipedia.org/wiki/Slippery_sequence |
In mathematics , the slope or gradient of a line is a number that describes the direction of the line on a plane . [ 1 ] Often denoted by the letter m , slope is calculated as the ratio of the vertical change to the horizontal change ("rise over run") between two distinct points on the line, giving the same number for ... | https://en.wikipedia.org/wiki/Slope |
A slope field (also called a direction field [ 1 ] ) is a graphical representation of the solutions to a first-order differential equation [ 2 ] of a scalar function. Solutions to a slope field are functions drawn as solid curves. A slope field shows the slope of a differential equation at certain vertical and horizont... | https://en.wikipedia.org/wiki/Slope_field |
A slope house or souterrain house is a house with soil or rock completely covering one wall and part of two more on the bottom floor. The house may have two entries depending on the ground level.
The main reason for building a slope house is due to the landscape, for example, if the land where the house should be buil... | https://en.wikipedia.org/wiki/Slope_house |
A slosh baffle is a device used to dampen the adverse effects of liquid slosh in a tank. Slosh baffles have been implemented in a variety of applications including tanker trucks , and liquid rockets , although any moving tank containing liquid may employ them. [ 1 ]
Baffle rings are rigid rings placed within the insid... | https://en.wikipedia.org/wiki/Slosh_baffle |
In fluid dynamics , slosh refers to the movement of liquid inside another object (which is, typically, also undergoing motion).
Strictly speaking, the liquid must have a free surface to constitute a slosh dynamics problem, where the dynamics of the liquid can interact with the container to alter the system dynamics si... | https://en.wikipedia.org/wiki/Slosh_dynamics |
The sloshing bucket model of evolution is a theory in evolutionary biology that describes how environmental disturbances varying in magnitude will affect the species present. [ 1 ] [ 2 ] [ 3 ] The theory emphasizes the causal relationship between environmental factors that impinge and affect genealogical systems, provi... | https://en.wikipedia.org/wiki/Sloshing_bucket_model_of_evolution |
Slot-die coating is a coating technique for the application of solution , slurry , hot-melt , or extruded thin films onto typically flat substrates such as glass, metal, paper, fabric, plastic, or metal foils. The process was first developed for the industrial production of photographic papers in the 1950s. [ 1 ] It ha... | https://en.wikipedia.org/wiki/Slot-die_coating |
A slot comprises the operation issue and data path machinery surrounding a set of one or more execution unit (also called a functional unit (FU)) which share these resources. [ 1 ] [ 2 ] The term slot is common for this purpose in very long instruction word (VLIW) computers, where the relationship between operation in ... | https://en.wikipedia.org/wiki/Slot_(computer_architecture) |
A slough ( / s l uː / ⓘ [ 1 ] [ 2 ] or / s l aʊ / ⓘ ) [ 1 ] [ 2 ] [ 3 ] is a wetland , usually a swamp or shallow lake , often a backwater to a larger body of water. [ 4 ] Water tends to be stagnant or may flow slowly on a seasonal basis. [ 5 ]
In North America, "slough" may refer to a side-channel from or feeding a r... | https://en.wikipedia.org/wiki/Slough_(hydrology) |
In computability theory , computational complexity theory and proof theory , the slow-growing hierarchy is an ordinal-indexed family of slowly increasing functions g α : N → N (where N is the set of natural numbers , {0, 1, ...}). It contrasts with the fast-growing hierarchy .
Let μ be a large countable ordinal such t... | https://en.wikipedia.org/wiki/Slow-growing_hierarchy |
The slow-reacting substance of anaphylaxis or SRS-A is a mixture of the leukotrienes LTC4 , LTD4 and LTE4 . Mast cells secrete it during the anaphylactic reaction , inducing inflammation . [ 1 ] It can be found in basophils .
It induces prolonged, slow contraction of smooth muscle and has a major bronchoconstrictor r... | https://en.wikipedia.org/wiki/Slow-reacting_substance_of_anaphylaxis |
Slow afterhyperpolarisation (sAHP) refers to prolonged periods of hyperpolarisation in a neuron or cardiomyocyte following an action potential or other depolarising event. In neurons, trains of action potentials may be required to induce sAHPs; this is unlike fast AHPs that require no more than a single action potentia... | https://en.wikipedia.org/wiki/Slow_afterhyperpolarization |
A slow fire is a term used in library and information science to describe paper embrittlement resulting from acid decay. The term is taken from the title of Terry Sanders 's 1987 film Slow Fires: On the preservation of the human record.
Solutions to this problem include the use of acid-free paper stocks, format shifti... | https://en.wikipedia.org/wiki/Slow_fire |
In mathematics , the slow manifold of an equilibrium point of a dynamical system occurs as the most common example of a center manifold . One of the main methods of simplifying dynamical systems , is to reduce the dimension of the system to that of the slow manifold— center manifold theory rigorously justifies the mod... | https://en.wikipedia.org/wiki/Slow_manifold |
Slow sand filters are used in water purification for treating raw water to produce a potable product. They are typically 1–2 m (3.3–6.6 ft) deep, can be rectangular or cylindrical in cross section and are used primarily to treat surface water. The length and breadth of the tanks are determined by the flow rate desired ... | https://en.wikipedia.org/wiki/Slow_sand_filter |
Slow strain rate testing ( SSRT ), also called constant extension rate tensile testing ( CERT ), is a popular test used by research scientists to study stress corrosion cracking . It involves a slow (compared to conventional tensile tests) dynamic strain applied at a constant extension rate in the environment of intere... | https://en.wikipedia.org/wiki/Slow_strain_rate_testing |
The slow vertex response (also called SVR or V potential [ 1 ] ) is an electrochemical signal associated with electrophysiological recordings of the auditory system , specifically Auditory evoked potentials (AEPs). The SVR of a normal human being recorded with surface electrodes can be found at the end of a recorded AE... | https://en.wikipedia.org/wiki/Slow_vertex_response |
The slowed rotor principle is used in the design of some helicopters . On a conventional helicopter the rotational speed of the rotor is constant; reducing it at lower flight speeds can reduce fuel consumption and enable the aircraft to fly more economically. In the compound helicopter and related aircraft configuratio... | https://en.wikipedia.org/wiki/Slowed_rotor |
In physics , slowly varying envelope approximation [ 1 ] ( SVEA , sometimes also called slowly varying asymmetric approximation or SVAA ) is the assumption that the envelope of a forward-travelling wave pulse varies slowly in time and space compared to a period or wavelength . This requires the spectrum of the signal t... | https://en.wikipedia.org/wiki/Slowly_varying_envelope_approximation |
Sludge (possibly from Middle English slutch ' mud, mire ' , or some dialect related to slush ) [ 1 ] is a semi-solid slurry that can be produced from a range of industrial processes, from water treatment , wastewater treatment or on-site sanitation systems. It can be produced as a settled suspension obtained from conve... | https://en.wikipedia.org/wiki/Sludge |
In fluid mechanics , slug flow in liquid–gas two-phase flow is a type of flow pattern. Lighter, faster moving continuous fluid which contains gas bubbles - pushes along a disperse gas bubble. [ 1 ] [ 2 ] Pressure oscillations within piping can be caused by slug flow. [ 3 ] The word slug usually refers to the heavier, s... | https://en.wikipedia.org/wiki/Slug_flow |
In hydrogeology , a slug test is a particular type of aquifer test where water is quickly added or removed from a groundwater well , and the change in hydraulic head is monitored through time, to determine the near-well aquifer characteristics. It is a method used by hydrogeologists and civil engineers to determine the... | https://en.wikipedia.org/wiki/Slug_test |
Slug Catcher is the name of a unit in the gas refinery or petroleum industry in which slugs at the outlet of pipelines are collected or caught. A slug is a large quantity of a liquid that exists in a multi-phase pipeline.
Pipelines that transport both gas and liquids together, known as two-phase flow , can operate in... | https://en.wikipedia.org/wiki/Slugcatcher |
Slugs is an open-source autopilot system oriented toward inexpensive autonomous aircraft. [ 1 ] Low cost and wide availability enable hobbyist use in small remotely piloted aircraft . The project started in 2009 [ 2 ] and is being further developed and used at Autonomous Systems Lab of University of California Santa Cr... | https://en.wikipedia.org/wiki/Slugs_(autopilot_system) |
A slurry is a mixture of denser solids suspended in liquid, usually water. The most common use of slurry is as a means of transporting solids or separating minerals, the liquid being a carrier that is pumped on a device such as a centrifugal pump . The size of solid particles may vary from 1 micrometre up to hundreds o... | https://en.wikipedia.org/wiki/Slurry |
A slurry pipeline is a specially engineered pipeline used to move ores, such as coal or iron, or mining waste, called tailings , over long distances. A mixture of the ore concentrate and water, called slurry , is pumped to its destination and the water is filtered out. Due to the abrasive properties of slurry , the pip... | https://en.wikipedia.org/wiki/Slurry_pipeline |
In probability theory , Slutsky's theorem extends some properties of algebraic operations on convergent sequences of real numbers to sequences of random variables . [ 1 ]
The theorem was named after Eugen Slutsky . [ 2 ] Slutsky's theorem is also attributed to Harald Cramér . [ 3 ]
Let X n , Y n {\displaystyle X_{n},... | https://en.wikipedia.org/wiki/Slutsky's_theorem |
In microeconomics , the Slutsky equation (or Slutsky identity ), named after Eugen Slutsky , relates changes in Marshallian (uncompensated) demand to changes in Hicksian (compensated) demand , which is known as such since it compensates to maintain a fixed level of utility.
There are two parts of the Slutsky equation,... | https://en.wikipedia.org/wiki/Slutsky_equation |
Samarium(III) oxide ( Sm 2 O 3 ) is a chemical compound . Samarium oxide readily forms on the surface of samarium metal under humid conditions or temperatures in excess of 150°C in dry air. Similar to rust on metallic iron, this oxide layer spalls off the surface of the metal, exposing more metal to continue the reacti... | https://en.wikipedia.org/wiki/Sm2O3 |
Samarium(III) arsenide is a binary inorganic compound of samarium and arsenic with the chemical formula SmAs . [ 1 ] [ 2 ]
Samarium arsenide can be synthesised by heating of pure substances in vacuum:
Samarium arsenide forms crystals of a cubic system , [ 3 ] space group Fm3m , cell parameters a = 0.5921 nm, Z = 4, o... | https://en.wikipedia.org/wiki/SmAs |
Samarium tetraboride is a binary inorganic compound of samarium and boron with the formula SmB 4 . It forms black crystals.
Samarium tetraboride can be prepared from directly reacting samarium and boron at 2400 °C:
Samarium tetraboride forms crystals of the orthorhombic crystal system , space group P4/mbm , cell para... | https://en.wikipedia.org/wiki/SmB4 |
Samarium(II) bromide is an inorganic compound with the chemical formula SmBr 2 . [ 6 ] It is a brown solid that is insoluble in most solvents but degrades readily in air. [ 4 ]
In the gas phase, SmBr 2 is a bent molecule with Sm–Br distance 274.5 pm and bond angle 131±6°. [ 7 ]
Samarium(II) bromide was first synthesi... | https://en.wikipedia.org/wiki/SmBr2 |
cream-coloured solid (hexahydrate)
2.383 g /cm 3 (hexahydrate)
Samarium(III) chloride , also known as samarium trichloride, is an inorganic compound of samarium and chloride . It is a pale yellow salt that rapidly absorbs water to form a hexa hydrate , SmCl 3 . 6H 2 O. [ 1 ] The compound has few practical applicatio... | https://en.wikipedia.org/wiki/SmCl3 |
Samarium(III) fluoride ( Sm F 3 ) is a slightly hygroscopic solid fluoride . Conditions/substances to avoid are: open flame , moisture, strong acids .
Samarium(III) fluoride can be obtained by reacting SmCl 3 or Sm 2 (CO 3 ) 3 with 40% hydrofluoric acid: [ 1 ]
Samarium(III) fluoride can also be produced by hydrotherm... | https://en.wikipedia.org/wiki/SmF3 |
Samarium(II) iodide is an inorganic compound with the formula SmI 2 . When employed as a solution for organic synthesis , it is known as Kagan 's reagent . SmI 2 is a green solid and forms a dark blue solution in THF . [ 1 ] It is a strong one-electron reducing agent that is used in organic synthesis .
In solid sama... | https://en.wikipedia.org/wiki/SmI2 |
Samarium(III) phosphide is an inorganic compound of samarium and phosphorus with the chemical formula SmP . [ 1 ] [ 2 ] [ 3 ]
Samarium(III) phosphide can be obtained by heating samarium and phosphorus:
Samarium(III) phosphide forms crystals of a cubic system , space group Fm 3 m , cell size a = 0.5760 nm, Z = 4, with... | https://en.wikipedia.org/wiki/SmP |
Samarium(III) phosphate is an inorganic compound, with the chemical formula of SmPO 4 . It is one of the phosphates of samarium .
Samarium(III) phosphate can be obtained by reacting sodium metaphosphate with any soluble samarium(III) salt:
Samarium(III) phosphate can also be obtained by reacting phosphoric acid and s... | https://en.wikipedia.org/wiki/SmPO4 |
The Smale conjecture , named after Stephen Smale , is the statement that the diffeomorphism group of the 3-sphere has the homotopy-type of its isometry group, the orthogonal group O(4) . It was proved in 1983 by Allen Hatcher . [ 1 ]
There are several equivalent statements of the Smale conjecture. One is that the com... | https://en.wikipedia.org/wiki/Smale_conjecture |
Small-signal modeling is a common analysis technique in electronics engineering used to approximate the behavior of electronic circuits containing nonlinear devices with linear equations . It is applicable to electronic circuits in which the AC signals (i.e., the time-varying currents and voltages in the circuit) are ... | https://en.wikipedia.org/wiki/Small-signal_model |
Small is a weekly peer-reviewed scientific journal covering nanotechnology . It was established in 2005 as a monthly journal, switched to biweekly in 2009, and to weekly in 2015. It is published by Wiley-VCH and the editor-in-chief is José Oliveira. According to the Journal Citation Reports , the journal has a 2023 imp... | https://en.wikipedia.org/wiki/Small_(journal) |
The Small Astronomy Satellite 2 , also known also as SAS-2 , SAS B or Explorer 48 , was a NASA gamma ray telescope . It was launched on 15 November 1972 into the low Earth orbit with a periapsis of 443 km and an apoapsis of 632 km. It completed its observations on 8 June 1973. [ 2 ] [ 3 ]
SAS 2 was the second in the s... | https://en.wikipedia.org/wiki/Small_Astronomy_Satellite_2 |
The Small Astronomy Satellite 3 ( SAS 3 , also known as SAS-C before launch) (Explorer 53) was a NASA X-ray astronomy space telescope . [ 1 ] It functioned from 7 May 1975 to 9 April 1979. It covered the X-ray range with four experiments on board. The satellite, built by the Johns Hopkins University Applied Physics Lab... | https://en.wikipedia.org/wiki/Small_Astronomy_Satellite_3 |
Small Cajal body-specific RNAs ( scaRNAs ) are a class of small nucleolar RNAs (snoRNAs) that specifically localise to the Cajal body , a nuclear organelle (cellular sub-organelle) involved in the biogenesis of small nuclear ribonucleoproteins (snRNPs or snurps). ScaRNAs guide the modification ( methylation and pseud... | https://en.wikipedia.org/wiki/Small_Cajal_body-specific_RNA |
The Small Molecule Pathway Database (SMPDB) [ 1 ] [ 2 ] is a comprehensive, high-quality, freely accessible, online database containing more than 600 small molecule (i.e. metabolic) pathways found in humans. SMPDB is designed specifically to support pathway elucidation and pathway discovery in metabolomics , transcript... | https://en.wikipedia.org/wiki/Small_Molecule_Pathway_Database |
Small RNA sequencing (Small RNA-Seq) is a type of RNA sequencing based on the use of NGS technologies that allows to isolate and get information about noncoding RNA molecules in order to evaluate and discover new forms of small RNA and to predict their possible functions. By using this technique, it is possible to disc... | https://en.wikipedia.org/wiki/Small_RNA_sequencing |
A small Solar System body ( SSSB ) is an object in the Solar System that is neither a planet , a dwarf planet , nor a natural satellite . The term was first defined in 2006 by the International Astronomical Union (IAU) as follows: "All other objects, except satellites, orbiting the Sun shall be referred to collectively... | https://en.wikipedia.org/wiki/Small_Solar_System_body |
Small activating RNAs (saRNAs) are double-stranded RNA molecules that induce gene expression at the transcriptional level, a phenomenon known as RNA activation (RNAa). This contrasts with the gene silencing typically associated with small interfering RNAs (siRNAs) in RNA interference. saRNAs offer a novel approach to u... | https://en.wikipedia.org/wiki/Small_activating_RNA |
Small cells are low-powered cellular radio access nodes that have a ranges of around 10 meters to a few kilometers. They are base stations with low power consumption and cost. They can provide high data rates by being deployed densely to achieve high spatial spectrum efficiency. [ 1 ]
In the United States, recent FCC ... | https://en.wikipedia.org/wiki/Small_cell |
A small conditional RNA ( scRNA ) is a small RNA molecule or complex (typically less than approximately 100 nt ) engineered to interact and change conformation conditionally in response to cognate molecular inputs so as to perform signal transduction in vitro , in situ , or in vivo . [ 1 ]
In the absence of cognate in... | https://en.wikipedia.org/wiki/Small_conditional_RNA |
Small intensely fluorescent cells (SIF cells) are the interneurons of the sympathetic ganglia (postganglionic neurons) of the Sympathetic division of the autonomic nervous system (ANS). The neurotransmitter for these cells is dopamine . They are a neural crest derivative and share a common sympathoadrenal precursor ce... | https://en.wikipedia.org/wiki/Small_intensely_fluorescent_cell |
Small interfering RNA ( siRNA ), sometimes known as short interfering RNA or silencing RNA , is a class of double-stranded non-coding RNA molecules , typically 20–24 base pairs in length, similar to microRNA (miRNA), and operating within the RNA interference (RNAi) pathway. It interferes with the expression of specifi... | https://en.wikipedia.org/wiki/Small_interfering_RNA |
In molecular biology and pharmacology , a small molecule or micromolecule is a low molecular weight (≤ 1000 daltons [ 1 ] ) organic compound that may regulate a biological process, with a size on the order of 1 nm [ citation needed ] . Many drugs are small molecules; the terms are equivalent in the literature. Larger s... | https://en.wikipedia.org/wiki/Small_molecule |
Small-molecule sensors are an effective way to detect the presence of metal ions in solution. [ 1 ] Although many types exist, most small molecule sensors comprise a subunit that selectively binds to a metal that in turn induces a change in a fluorescent subunit. This change can be observed in the small molecule sensor... | https://en.wikipedia.org/wiki/Small_molecule_sensors |
Small nuclear RNA ( snRNA ) is a class of small RNA molecules that are found within the splicing speckles and Cajal bodies of the cell nucleus in eukaryotic cells. The length of an average snRNA is approximately 150 nucleotides. They are transcribed by either RNA polymerase II or RNA polymerase III . [ 1 ] Their primar... | https://en.wikipedia.org/wiki/Small_nuclear_RNA |
In molecular biology , small nucleolar RNAs ( snoRNAs ) are a class of small RNA molecules that primarily guide chemical modifications of other RNAs, mainly ribosomal RNAs , transfer RNAs and small nuclear RNAs . There are two main classes of snoRNA, the C/D box snoRNAs, which are associated with methylation , and the ... | https://en.wikipedia.org/wiki/Small_nucleolar_RNA |
In mathematics, especially in category theory , Quillen’s small object argument , when applicable, constructs a factorization of a morphism in a functorial way. In practice, it can be used to show some class of morphisms constitutes a weak factorization system in the theory of model categories.
The argument was introd... | https://en.wikipedia.org/wiki/Small_object_argument |
A small stationary reformer is an on-site device used for the production of hydrogen from hydrocarbons on a small scale. [ 1 ] [ 2 ]
A membrane reactor is a device where oxygen separation, steam reforming and POX is combined in a single step. In 1997 Argonne National Laboratory and Amoco published a paper "Ceramic me... | https://en.wikipedia.org/wiki/Small_stationary_reformer |
In geometry , the small stellated 120-cell or stellated polydodecahedron is a regular star 4-polytope with Schläfli symbol {5/2,5,3}. It is one of 10 regular Schläfli-Hess polytopes .
It has the same edge arrangement as the great grand 120-cell , and also shares its 120 vertices with the 600-cell and eight other regul... | https://en.wikipedia.org/wiki/Small_stellated_120-cell |
In the geometry of hyperbolic 4-space , the small stellated 120-cell honeycomb is one of four regular star- honeycombs . With Schläfli symbol {5/2,5,3,3}, it has three small stellated 120-cells around each face. It is dual to the pentagrammic-order 600-cell honeycomb .
It can be seen as a stellation of the 120-cell ho... | https://en.wikipedia.org/wiki/Small_stellated_120-cell_honeycomb |
Plasmid vectors are circular strands of DNA , found in virions , that are used in genetic engineering to integrate new genes into a host cell genome.
The small T intron is an intron , that is used in some plasmid vectors, in order to induce gene expression in mammalian cells.
The function of this intron in the vector... | https://en.wikipedia.org/wiki/Small_t_intron |
In data compression and the theory of formal languages , the smallest grammar problem is the problem of finding the smallest context-free grammar that generates a given string of characters (but no other string). The size of a grammar is defined by some authors as the number of symbols on the right side of the producti... | https://en.wikipedia.org/wiki/Smallest_grammar_problem |
A smalley is a type of small excavator with two wheels on a single axle. It had no drive to the wheels, moving instead by pulling itself along using the excavator or ' backhoe ' arm. Once in location the machine worked as any other 360° excavator, with two fixed-adjustable front legs, and two rear legs which could be m... | https://en.wikipedia.org/wiki/Smalley_(excavator) |
The smallpox virus retention debate has been going on among scientists and health officials since the smallpox virus was declared eradicated by the World Health Organization (WHO) in 1980. [ 1 ] [ 2 ] The debate centers on whether the last two known remnants of the Variola virus known to cause smallpox, which are kept ... | https://en.wikipedia.org/wiki/Smallpox_virus_retention_debate |
A smart object is an object that enhances the interaction with not only people but also with other smart objects. Also known as smart connected products or smart connected things ( SCoT ), they are products, assets and other things embedded with processors, sensors, software and connectivity that allow data to be excha... | https://en.wikipedia.org/wiki/Smart,_connected_products |
SmartFIX40 was a major transportation improvement project coordinated by the Tennessee Department of Transportation (TDOT) along Interstate 40 (I-40) in downtown Knoxville, Tennessee . The project, referred to as the most ambitious TDOT project at the time, [ 4 ] consisted of two separate phases and contracts, started ... | https://en.wikipedia.org/wiki/SmartFIX40 |
Smart Bitrate Control , commonly referred to as SBC , was a technique for achieving greatly improved video compression efficiency using the DivX 3.11 Alpha video codec or Microsoft's proprietary MPEG4v2 video codec and the Nandub video encoder. SBC relied on two main technologies to achieve this improved efficiency: Mu... | https://en.wikipedia.org/wiki/Smart_Bitrate_Control |
Smart Cells are radio access nodes that provide wireless connectivity across multiple spectrum ranges and technologies. As of January 2014, Macrocells , Small Cells , and Wi-Fi connections were the primary means of data connectivity. For these types of cells, the spectrum utilized is static and is based on the antenna ... | https://en.wikipedia.org/wiki/Smart_Cell |
Smart Communications Inc. , commonly referred to as Smart , is a wholly owned wireless communications and digital services subsidiary of PLDT Inc., [ 1 ] a telecommunications and digital services provider based in the Philippines. [ 2 ] As of November 2023, it is currently the largest mobile network with 55.2 million s... | https://en.wikipedia.org/wiki/Smart_Communications |
Smart Data Compression is a compressed GIS dataset format developed by Esri . It stores all types of feature data and attribute information together as a core data structure. The SDC format was used in Esri products such as ArcGIS StreetMap, ArcIMS Route Server, RouteMAP IMS, ArcGIS Business Analyst, and the ArcMobile ... | https://en.wikipedia.org/wiki/Smart_Data_Compression |
Smart Materials and Structures is a monthly peer-reviewed scientific journal covering technical advances in smart materials , systems and structures; including intelligent systems, sensing and actuation, adaptive structures, and active control.
The initial editors-in-chief starting in 1992 were Vijay K. Varadan ( Penn... | https://en.wikipedia.org/wiki/Smart_Materials_and_Structures |
Smart Mobility Architecture ( SMARC ) is a computer hardware standard for computer-on-modules (COMs).
SMARC modules are specifically designed for the development of extremely compact low-power systems, such as mobile devices. [ 1 ]
The SMARC hardware specification V1.0 was published by the Standardization Group for Em... | https://en.wikipedia.org/wiki/Smart_Mobility_Architecture |
The Smart Personal Objects Technology ( SPOT ) is a discontinued initiative by Microsoft to create intelligent and personal home appliances , consumer electronics , and other objects through new hardware capabilities and software features.
Development of SPOT began as an incubation project initiated by the Microsoft R... | https://en.wikipedia.org/wiki/Smart_Personal_Objects_Technology |
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