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https://en.wikipedia.org/wiki/Dopant%20activation | Dopant activation is the process of obtaining the desired electronic contribution from impurity species in a semiconductor host. The term is often restricted to the application of thermal energy following the ion implantation of dopants. In the most common industrial example, rapid thermal processing is applied to sili... |
https://en.wikipedia.org/wiki/Tapinella%20panuoides | Tapinella panuoides is a fungus species in the genus Tapinella.
Atromentin is a phenolic compound. The first enzymes in its biosynthesis have been characterised in T. panuoides.
Despite its pleasant taste, the species is poisonous. |
https://en.wikipedia.org/wiki/Chandy%E2%80%93Lamport%20algorithm | The Chandy–Lamport algorithm is a snapshot algorithm that is used in distributed systems for recording a consistent global state of an asynchronous system. It was developed by and named after Leslie Lamport and K. Mani Chandy.
History
According to Leslie Lamport's website, “The distributed snapshot algorithm described... |
https://en.wikipedia.org/wiki/Nonlinear%20expectation | In probability theory, a nonlinear expectation is a nonlinear generalization of the expectation. Nonlinear expectations are useful in utility theory as they more closely match human behavior than traditional expectations. The common use of nonlinear expectations is in assessing risks under uncertainty. Generally, nonli... |
https://en.wikipedia.org/wiki/Alliance%20for%20Affordable%20Internet | The Alliance for Affordable Internet (A4AI) is an initiative to make the Internet more affordable to people around the world. The World Wide Web Foundation serves as the Secretariat, and major members of coalition include Google, the Omidyar Network, the Department for International Development, USAID, Facebook, Cisco,... |
https://en.wikipedia.org/wiki/Interstellar%20communication | Interstellar communication is the transmission of signals between planetary systems. Sending interstellar messages is potentially much easier than interstellar travel, being possible with technologies and equipment which are currently available. However, the distances from Earth to other potentially inhabited systems i... |
https://en.wikipedia.org/wiki/Vensim | Vensim is a simulation software developed by Ventana Systems. It primarily supports continuous simulation (system dynamics), with some discrete event and agent-based modelling capabilities. It is available commercially and as a free "Personal Learning Edition".
Modeling environment
Vensim provides a graphical modeli... |
https://en.wikipedia.org/wiki/Ocean%20temperature | Several factors cause the ocean temperature to vary. These are depth, geographical location and season. Both the temperature and salinity of ocean water differ. Warm surface water is generally saltier than the cooler deep or polar waters. In polar regions, the upper layers of ocean water are cold and fresh. Deep ocean... |
https://en.wikipedia.org/wiki/S-Adenosyl-L-homocysteine | {{DISPLAYTITLE:S-Adenosyl-L-homocysteine}}
S-Adenosyl-L-homocysteine (SAH) is the biosynthetic precursor to homocysteine. SAH is formed by the demethylation of S-adenosyl-L-methionine. Adenosylhomocysteinase converts SAH into homocysteine and adenosine.
Biological role
DNA methyltransferases are inhibited by SAH.... |
https://en.wikipedia.org/wiki/Forensic%20statistics | Forensic statistics is the application of probability models and statistical techniques to scientific evidence, such as DNA evidence, and the law. In contrast to "everyday" statistics, to not engender bias or unduly draw conclusions, forensic statisticians report likelihoods as likelihood ratios (LR). This ratio of pro... |
https://en.wikipedia.org/wiki/Nevesia | Nevesia is a monotypic genus of lichenized fungus in the family Pannariaceae. It contains the species Nevesia sampaiana. The genus name honors Carlos das Neves Tavares, the Portuguese lichenologist who first identified the species in 1950. |
https://en.wikipedia.org/wiki/Gould%27s%20emerald | Gould's emerald (Riccordia elegans) is an extinct species of hummingbird in the family Trochilidae. It was described based on a single specimen taken in 1860; it is of unknown origin, but the northern Bahamas or especially Jamaica are likely sources.
In 2023 the International Ornithological Committee deleted it from i... |
https://en.wikipedia.org/wiki/ETransportation | eTransportation is a peer-reviewed open-access scientific journal covering all modes of transportation by using electricity (vehicles, ships and airplanes). The journal was established in 2019 and is published by Elsevier. The editor-in-chief is Minggao Ouyang (Tsinghua University). It is emphasized that efforts to ad... |
https://en.wikipedia.org/wiki/Lateral%20tarsal%20artery | The lateral tarsal artery (tarsal artery) arises from the dorsalis pedis, as that vessel crosses the navicular bone; it passes in an arched direction lateralward, lying upon the tarsal bones, and covered by extensor hallucis brevis and extensor digitorum brevis; it supplies these muscles and the articulations of the ta... |
https://en.wikipedia.org/wiki/BCPNN | A Bayesian Confidence Propagation Neural Network (BCPNN) is an artificial neural network inspired by Bayes' theorem, which regards neural computation and processing as probabilistic inference. Neural unit activations represent probability ("confidence") in the presence of input features or categories, synaptic weights ... |
https://en.wikipedia.org/wiki/Graph%20property | In graph theory, a graph property or graph invariant is a property of graphs that depends only on the abstract structure, not on graph representations such as particular labellings or drawings of the graph.
Definitions
While graph drawing and graph representation are valid topics in graph theory, in order to focus onl... |
https://en.wikipedia.org/wiki/Modulus%20%28algebraic%20number%20theory%29 | In mathematics, in the field of algebraic number theory, a modulus (plural moduli) (or cycle, or extended ideal) is a formal product of places of a global field (i.e. an algebraic number field or a global function field). It is used to encode ramification data for abelian extensions of a global field.
Definition
Let... |
https://en.wikipedia.org/wiki/Centre%20for%20Quantum%20Technologies | The Centre for Quantum Technologies (CQT) in Singapore is a Research Centre of Excellence hosted by the National University of Singapore. The Centre brings together physicists, computer scientists and engineers to do basic research on quantum physics and to build devices based on quantum phenomena. Experts in quantum t... |
https://en.wikipedia.org/wiki/Vasanti%20N.%20Bhat-Nayak | Vasanti N. Bhat-Nayak was a mathematician whose research concerned balanced incomplete block designs, bivariegated graphs, graceful graphs, graph equations and frequency partitions.
She earned a Ph.D. from the University of Mumbai in 1970 with the dissertation Some New Results in PBIBD Designs and Combinatorics. S. S. ... |
https://en.wikipedia.org/wiki/Natta%20projection | In chemistry, the Natta projection (named for Italian chemist Giulio Natta) is a way to depict molecules with complete stereochemistry in two dimensions in a skeletal formula. In a hydrocarbon molecule with all carbon atoms making up the backbone in a tetrahedral molecular geometry, the zigzag backbone is in the paper ... |
https://en.wikipedia.org/wiki/Repolarization | In neuroscience, repolarization refers to the change in membrane potential that returns it to a negative value just after the depolarization phase of an action potential which has changed the membrane potential to a positive value. The repolarization phase usually returns the membrane potential back to the resting memb... |
https://en.wikipedia.org/wiki/Atychodracon | Atychodracon is an extinct genus of rhomaleosaurid plesiosaurian known from the Late Triassic - Early Jurassic boundary (probably early Hettangian stage) of England. It contains a single species, Atychodracon megacephalus, named in 1846 originally as a species of Plesiosaurus. The holotype of "P." megacephalus was dest... |
https://en.wikipedia.org/wiki/Relativistic%20beaming | Relativistic beaming (also known as Doppler beaming, Doppler boosting, or the headlight effect) is the process by which relativistic effects modify the apparent luminosity of emitting matter that is moving at speeds close to the speed of light. In an astronomical context, relativistic beaming commonly occurs in two opp... |
https://en.wikipedia.org/wiki/Slurry | 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 of... |
https://en.wikipedia.org/wiki/Responsible%20drug%20use | Responsible drug use maximizes the benefits and reduces the risk of negative impact psychoactive drugs cause on the lives of the user. For illegal psychoactive drugs that are not diverted prescription controlled substances, some critics believe that illegal recreational drug use is inherently irresponsible, due to the ... |
https://en.wikipedia.org/wiki/Bernard%20Kettlewell | Henry Bernard Davis Kettlewell (24 February 1907 – 11 May 1979) was a British geneticist, lepidopterist and medical doctor, who performed research on the influence of industrial melanism on peppered moth (Biston betularia) coloration, showing why moths are darker in polluted areas. This experiment is cited as a classic... |
https://en.wikipedia.org/wiki/CONN%20%28functional%20connectivity%20toolbox%29 | CONN is a Matlab-based cross-platform imaging software for the computation, display, and analysis of functional connectivity in fMRI (functional Magnetic Resonance Imaging) in the resting state and during task.
CONN is available as an SPM toolbox, as well as precompiled binaries for MacOS/Windows/Linux environments, a... |
https://en.wikipedia.org/wiki/List%20of%20broadband%20over%20power%20line%20deployments | It is important to highlight that BPL deployments consist in large scale installations that have been technically approved in a pilot project.
BPL deployments - 2nd Gen (G.hn)
Active BPL deployments
Western Europe:
Germany: In 2017, E.ON initiated its BPL deployment across 100,000 German households by providing 1... |
https://en.wikipedia.org/wiki/Dieudonn%C3%A9%20determinant | In linear algebra, the Dieudonné determinant is a generalization of the determinant of a matrix to matrices over division rings and local rings. It was introduced by .
If K is a division ring, then the Dieudonné determinant is a homomorphism of groups from the group GLn(K) of invertible n by n matrices over K onto th... |
https://en.wikipedia.org/wiki/Simon%27s%20problem | In computational complexity theory and quantum computing, Simon's problem is a computational problem that is proven to be solved exponentially faster on a quantum computer than on a classical (that is, traditional) computer. The quantum algorithm solving Simon's problem, usually called Simon's algorithm, served as the ... |
https://en.wikipedia.org/wiki/Baller%E2%80%93Gerold%20syndrome | Baller–Gerold syndrome (BGS) is a rare genetic syndrome that involves premature fusion of the skull bones and malformations of facial, forearm and hand bones. The symptoms of Baller–Gerold syndrome overlap with features of a few other genetics disorders: Rothmund–Thomson syndrome and RAPADILINO syndrome. The prevalence... |
https://en.wikipedia.org/wiki/Lists%20of%20mathematics%20topics | Lists of mathematics topics cover a variety of topics related to mathematics. Some of these lists link to hundreds of articles; some link only to a few. The template to the right includes links to alphabetical lists of all mathematical articles. This article brings together the same content organized in a manner better... |
https://en.wikipedia.org/wiki/Colorado%20Memory%20Systems | Colorado Memory Systems, Inc. (CMS), was an American technology company independently active from 1985 to 1992 and based in Loveland, Colorado. The company primarily manufactured tape drive systems, especially those using quarter-inch cartridges (QIC)s, for personal computers and workstations. Colorado Memory Systems w... |
https://en.wikipedia.org/wiki/Davide%20Gaiotto | Davide Silvano Achille Gaiotto (born 11 March 1977) is an Italian mathematical physicist who deals with quantum field theories and string theory. He received the Gribov Medal in 2011 and the New Horizons in Physics Prize in 2013.
Biography
Gaiotto won 1996 the silver medal as Italian participants in the International ... |
https://en.wikipedia.org/wiki/International%20Community%20for%20Auditory%20Display | The International Community for Auditory Display (ICAD), founded in 1992, provides an annual conference for research in auditory display, the use of sound to display information. Research and implementation of sonification, audification, earcons and speech synthesis are central interests of the ICAD. ICAD is home to au... |
https://en.wikipedia.org/wiki/Florey%20Lecture | The Florey Lecture was a lecture organised by the Royal Society of London.
List of lecturers |
https://en.wikipedia.org/wiki/Skeeter%20syndrome | Skeeter syndrome (papular urticaria) is a localized severe allergic reaction to mosquito bites, consisting of inflammation, peeling skin, blistering, ulceration and sometimes fever. It is caused by allergenic polypeptides in mosquito saliva, and therefore is not contagious. It is one of several forms, being one of the ... |
https://en.wikipedia.org/wiki/Relaxation%20labelling | Relaxation labelling is an image treatment methodology. Its goal is to associate a label to the pixels of a given image or nodes of a given graph.
See also
Digital image processing |
https://en.wikipedia.org/wiki/International%20Fairtrade%20Certification%20Mark | The 'International Fairtrede Certification Mark is an independent certification mark used in over 69 countries. It appears on products as an independent guarantee that a product has been produced according to Fairtrade political standards.
The Fairtrade Mark is owned and protected by Fairtrade International (FLO), on ... |
https://en.wikipedia.org/wiki/Insectary%20plant | Insectary plants are those that attract insects. As such, beneficial insectary plants are intentionally introduced into an ecosystem to increase pollen and nectar resources required by the natural enemies of the harmful or unwanted insects pests. Beyond an effective natural control of pests, the beneficial insects also... |
https://en.wikipedia.org/wiki/Constructive%20developmental%20framework | The constructive developmental framework (CDF) is a theoretical framework for epistemological and psychological assessment of adults. The framework is based on empirical developmental research showing that an individual's perception of reality is an actively constructed "world of their own", unique to them and which th... |
https://en.wikipedia.org/wiki/Photothermal%20spectroscopy | Photothermal spectroscopy is a group of high sensitivity spectroscopy techniques used to measure optical absorption and thermal characteristics of a sample. The basis of photothermal spectroscopy is the change in thermal state of the sample resulting from the absorption of radiation. Light absorbed and not lost by emis... |
https://en.wikipedia.org/wiki/Akuma%20%28Street%20Fighter%29 | Akuma (悪魔, Japanese for "Devil", "Demon"), known in Japan as , is a fictional character and the secondary antagonist of the Street Fighter series of fighting games created by Capcom. Akuma made his debut in Super Street Fighter II Turbo as a secret character and boss. In the storyline of the Street Fighter video games,... |
https://en.wikipedia.org/wiki/Sujagi | The Sujagi is a flag with a Hanja(帥), pronounced su in Korean, that denotes a commanding general. The whole term literally means, "Commanding general flag". Only one sujagi is known to exist in Korea. The color is a faded yellowish-brown background with a black character in its center. It is made of hemp cloth and ... |
https://en.wikipedia.org/wiki/Centronics | Centronics Data Computer Corporation was an American manufacturer of computer printers, now remembered primarily for the parallel interface that bears its name, the Centronics connector.
History
Foundations
Centronics began as a division of Wang Laboratories. Founded and initially operated by Robert Howard (preside... |
https://en.wikipedia.org/wiki/Yang%20Hui | Yang Hui (, ca. 1238–1298), courtesy name Qianguang (), was a Chinese mathematician and writer during the Song dynasty. Originally, from Qiantang (modern Hangzhou, Zhejiang), Yang worked on magic squares, magic circles and the binomial theorem, and is best known for his contribution of presenting Yang Hui's Triangle. T... |
https://en.wikipedia.org/wiki/Hermann%20Grassmann | Hermann Günther Grassmann (, ; 15 April 1809 – 26 September 1877) was a German polymath known in his day as a linguist and now also as a mathematician. He was also a physicist, general scholar, and publisher. His mathematical work was little noted until he was in his sixties. His work preceded and exceeded the concept ... |
https://en.wikipedia.org/wiki/Grayshift | Grayshift is an American mobile device forensics company which makes a device named GrayKey to crack iPhones, iPads, and Android devices.
Grayshift was co-founded by David Miles, Braden Thomas, Justin Fisher and Sean Larsson. The company is funded by private investors PeakEquity Partners and C&B Capital.
GrayKey
The ... |
https://en.wikipedia.org/wiki/Erythranthe | Erythranthe, the monkey-flowers and musk-flowers, is a diverse plant genus with more than 120 members (as of 2022) in the family Phrymaceae. Erythranthe was originally described as a separate genus, then generally regarded as a section within the genus Mimulus, and recently returned to generic rank. Mimulus sect. Dipla... |
https://en.wikipedia.org/wiki/Risk-based%20testing | Risk-based testing (RBT) is a type of software testing that functions as an organizational principle used to prioritize the tests of features and functions in software, based on the risk of failure, the function of their importance and likelihood or impact of failure.</ref> In theory, there are an infinite number of po... |
https://en.wikipedia.org/wiki/Mural%20crown | A mural crown () is a crown or headpiece representing city walls, towers, or fortresses. In classical antiquity, it was an emblem of tutelary deities who watched over a city, and among the Romans a military decoration. Later the mural crown developed into a symbol of European heraldry, mostly for cities and towns, and ... |
https://en.wikipedia.org/wiki/Semantic%20analysis%20%28compilers%29 | Semantic analysis or context sensitive analysis is a process in compiler construction, usually after parsing, to gather necessary semantic information from the source code. It usually includes type checking, or makes sure a variable is declared before use which is impossible to describe in the extended Backus–Naur form... |
https://en.wikipedia.org/wiki/Memorandum | A memorandum (: memoranda; from the Latin memorandum, "(that) which is to be remembered"), also known as a briefing note, is a written message that is typically used in a professional setting. Commonly abbreviated memo, these messages are usually brief and are designed to be easily and quickly understood. Memos can thu... |
https://en.wikipedia.org/wiki/Relativity%20of%20simultaneity | In physics, the relativity of simultaneity is the concept that distant simultaneity – whether two spatially separated events occur at the same time – is not absolute, but depends on the observer's reference frame. This possibility was raised by mathematician Henri Poincaré in 1900, and thereafter became a central idea ... |
https://en.wikipedia.org/wiki/Organ%20of%20Bojanus | The organs of Bojanus or Bojanus organs are excretory glands that serve the function of kidneys in some of the molluscs. In other words, these are metanephridia that are found in some molluscs, for example in the bivalves. Some other molluscs have another type of organ for excretion called Keber's organ.
The Bojanus ... |
https://en.wikipedia.org/wiki/Direct%20coupling | In electronics, direct coupling or DC coupling (also called conductive coupling and galvanic coupling) is the transfer of electrical energy by means of physical contact via a conductive medium, in contrast to inductive coupling and capacitive coupling. It is a way of interconnecting two circuits such that, in addition ... |
https://en.wikipedia.org/wiki/Ekman%20current%20meter | The Ekman current meter is a mechanical flowmeter invented by Vagn Walfrid Ekman, a Swedish oceanographer, in 1903. It comprises a propeller with a mechanism to record the number of revolutions, a compass and a recorder with which to record the direction, and a vane that orients the instrument so the propeller faces th... |
https://en.wikipedia.org/wiki/Leo%20Fitz | Leopold James "Leo" Fitz is a fictional character that originated in the Marvel Cinematic Universe before appearing in Marvel Comics. The character, created by Joss Whedon, Jed Whedon and Maurissa Tancharoen, first appeared in the pilot episode of Agents of S.H.I.E.L.D. in September 2013, and has continually been portr... |
https://en.wikipedia.org/wiki/Ecological%20Genetics%20%28book%29 | Ecological Genetics is a 1964 book by the British biologist E. B. Ford on ecological genetics. Ford founded the field and it is considered his magnum opus. The fourth and final edition was published in 1975.
Ford's work was celebrated in 1971 by Ecological Genetics and Evolution, a series of essays edited by Robert Cr... |
https://en.wikipedia.org/wiki/Microwave%20and%20Optical%20Technology%20Letters | Microwave and Optical Technology Letters is a monthly peer-reviewed scientific journal published by Wiley-Blackwell. The editor-in-chief is Kai Chang (Texas A&M University). The journal covers technology that operates in wavelengths ranging from radio frequency to the optical spectrum.
Abstracting and indexing
This j... |
https://en.wikipedia.org/wiki/Russo%E2%80%93Dye%20theorem | In mathematics, the Russo–Dye theorem is a result in the field of functional analysis. It states that in a unital C*-algebra, the closure of the convex hull of the unitary elements is the closed unit ball.
The theorem was published by B. Russo and H. A. Dye in 1966.
Other formulations and generalizations
Results simi... |
https://en.wikipedia.org/wiki/List%20of%20Brazilian%20flags | This article is a list of Brazilian flags.
National Flags
Government flags
Ministries
Imperial standards of Brazil
Diplomatic services flags
Military flags
Brazilian Army
Brazilian Navy
Police flags
First-level administrative divisions
This list shows the flags of the 26 Brazilian States and the Federal Dis... |
https://en.wikipedia.org/wiki/Ionomics | Ionomics is the measurement of the total elemental composition of an organism to address biological problems. Questions within physiology, ecology, evolution, and many other fields can be investigated using ionomics, often coupled with bioinformatics, chemometrics and other genetic tools. Observing an organism's ionome... |
https://en.wikipedia.org/wiki/OpenSimplex%20noise | OpenSimplex noise is an n-dimensional (up to 4D) gradient noise function that was developed in order to overcome the patent-related issues surrounding simplex noise, while likewise avoiding the visually-significant directional artifacts characteristic of Perlin noise.
The algorithm shares numerous similarities with si... |
https://en.wikipedia.org/wiki/Sex-chromosome%20dosage%20compensation | Dosage compensation is the process by which organisms equalize the expression of genes between members of different biological sexes. Across species, different sexes are often characterized by different types and numbers of sex chromosomes. In order to neutralize the large difference in gene dosage produced by differin... |
https://en.wikipedia.org/wiki/Fossa%20for%20lacrimal%20gland | The lacrimal fossa (or fossa for lacrimal gland) is located on the inferior surface of each orbital plate of the frontal bone. It is smooth and concave, and presents, laterally, underneath the zygomatic process, a shallow depression for the lacrimal gland.
See also
Fossa for lacrimal sac |
https://en.wikipedia.org/wiki/86th%20meridian%20east | The meridian 86° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Indian Ocean, the Southern Ocean, and Antarctica to the South Pole.
The 86th meridian east forms a great circle with the 94th meridian west.
From Pole to Pole
Starting at the North Pole and he... |
https://en.wikipedia.org/wiki/Ulnar%20notch%20of%20the%20radius | The articular surface for the ulna is called the ulnar notch (sigmoid cavity) of the radius; it is in the distal radius, and is narrow, concave, smooth, and articulates with the head of the ulna forming the distal radioulnar joint. |
https://en.wikipedia.org/wiki/Randstad%20NV | Randstad NV, commonly known as Randstad and stylized as randstad, is a Dutch multinational human resource consulting firm headquartered in Diemen, Netherlands. It was founded in the Netherlands in 1960 by Gerrit Daleboudt who asked Frits Goldschmeding to join him and operates in around 39 countries. Randstad NV is list... |
https://en.wikipedia.org/wiki/Convective%20momentum%20transport | Convective momentum transport usually describes a vertical flux of the momentum of horizontal winds or currents. That momentum is carried like a non-conserved flow tracer by vertical air motions in convection.
In the atmosphere, convective momentum transport by small but vigorous (cumulus type) cloudy updrafts can be ... |
https://en.wikipedia.org/wiki/BeeGFS | BeeGFS (formerly FhGFS) is a parallel file system, developed and optimized for high-performance computing. BeeGFS includes a distributed metadata architecture for scalability and flexibility reasons. Its most used and widely known aspect is data throughput.
BeeGFS was originally developed at the Fraunhofer Center for ... |
https://en.wikipedia.org/wiki/IPX/SPX | IPX/SPX stands for Internetwork Packet Exchange/Sequenced Packet Exchange. IPX and SPX are networking protocols used initially on networks using the (since discontinued) Novell NetWare operating systems. They also became widely used on networks deploying Microsoft Windows LANS, as they replaced NetWare LANS, but are no... |
https://en.wikipedia.org/wiki/Binet%20equation | The Binet equation, derived by Jacques Philippe Marie Binet, provides the form of a central force given the shape of the orbital motion in plane polar coordinates. The equation can also be used to derive the shape of the orbit for a given force law, but this usually involves the solution to a second order nonlinear or... |
https://en.wikipedia.org/wiki/Artificial%20white%20blood%20cells | Artificial white blood cells are typically membrane bound vesicles designed to mimic the immunomodulatory behavior of naturally produced leukocytes. While extensive research has been done with regards to artificial red blood cells and platelets for use in emergency blood transfusions, research into artificial white blo... |
https://en.wikipedia.org/wiki/MicroStrategy | MicroStrategy Incorporated is an American company that provides business intelligence (BI), mobile software, and cloud-based services. Founded in 1989 by Michael J. Saylor, Sanju Bansal, and Thomas Spahr, the firm develops software to analyze internal and external data in order to make business decisions and to develop... |
https://en.wikipedia.org/wiki/Logarithmically%20convex%20function | In mathematics, a function f is logarithmically convex or superconvex if , the composition of the logarithm with f, is itself a convex function.
Definition
Let be a convex subset of a real vector space, and let be a function taking non-negative values. Then is:
Logarithmically convex if is convex, and
Strictly ... |
https://en.wikipedia.org/wiki/Line%E2%80%93sphere%20intersection | In analytic geometry, a line and a sphere can intersect in three ways:
No intersection at all
Intersection in exactly one point
Intersection in two points.
Methods for distinguishing these cases, and determining the coordinates for the points in the latter cases, are useful in a number of circumstances. For exampl... |
https://en.wikipedia.org/wiki/Maria%20Chudnovsky | Maria Chudnovsky (born January 6, 1977) is an Israeli-American mathematician working on graph theory and combinatorial optimization. She is a 2012 MacArthur Fellow.
Education and career
Chudnovsky is a professor in the department of mathematics at Princeton University. She grew up in Russia (attended Saint Petersburg... |
https://en.wikipedia.org/wiki/Staphylococcus%20aureus%20alpha%20toxin | Alpha-toxin, also known as alpha-hemolysin (Hla), is the major cytotoxic agent released by bacterium Staphylococcus aureus and the first identified member of the pore forming beta-barrel toxin family. This toxin consists mostly of beta-sheets (68%) with only about 10% alpha-helices. The hly gene on the S. aureus chrom... |
https://en.wikipedia.org/wiki/Beta%20bulge | A beta bulge can be described as a localized disruption of the regular hydrogen bonding of beta sheet by inserting extra residues into one or both hydrogen bonded β-strands.
Types
β-bulges can be grouped according to their length of the disruption, the number of residues inserted into each strand, whether the disrupte... |
https://en.wikipedia.org/wiki/Vasculogenesis | Vasculogenesis is the process of blood vessel formation, occurring by a de novo production of endothelial cells. It is sometimes paired with angiogenesis, as the first stage of the formation of the vascular network, closely followed by angiogenesis.
Process
In the sense distinguished from angiogenesis, vasculogenesis ... |
https://en.wikipedia.org/wiki/Lema%C3%AEtre%20coordinates | Lemaître coordinates are a particular set of coordinates for the Schwarzschild metric—a spherically symmetric solution to the Einstein field equations in vacuum—introduced by Georges Lemaître in 1932. Changing from Schwarzschild to Lemaître coordinates removes the coordinate singularity at the Schwarzschild radius.
Eq... |
https://en.wikipedia.org/wiki/Man%20page | A man page (short for manual page) is a form of software documentation usually found on a Unix or Unix-like operating system. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts. A user may invoke a man page by issuing the man comma... |
https://en.wikipedia.org/wiki/Bauer%E2%80%93Fike%20theorem | In mathematics, the Bauer–Fike theorem is a standard result in the perturbation theory of the eigenvalue of a complex-valued diagonalizable matrix. In its substance, it states an absolute upper bound for the deviation of one perturbed matrix eigenvalue from a properly chosen eigenvalue of the exact matrix. Informally s... |
https://en.wikipedia.org/wiki/Aconitine | Aconitine is an alkaloid toxin produced by various plant species belonging to the genus Aconitum (family Ranunculaceae), known also commonly by the names wolfsbane and monkshood. Monkshood is notorious for its toxic properties.
Structure and reactivity
Biologically active isolates from Aconitum and Delphinium plants a... |
https://en.wikipedia.org/wiki/Helikon%20vortex%20separation%20process | The Helikon vortex separation process is an aerodynamic uranium enrichment process designed around a device called a vortex tube. Paul Dirac thought of the idea for isotope separation and tried creating such a device in 1934 in the lab of Peter Kapitza at Cambridge. Other methods of separation were more practical at t... |
https://en.wikipedia.org/wiki/Journal%20of%20Cosmology%20and%20Astroparticle%20Physics | The Journal of Cosmology and Astroparticle Physics is an online-only peer-reviewed scientific journal focusing on all aspects of cosmology and astroparticle physics. This encompasses theory, observation, experiment, computation and simulation. It has been published jointly by IOP Publishing and the International School... |
https://en.wikipedia.org/wiki/Coopetition | Coopetition or co-opetition (sometimes spelled "coopertition" or "co-opertition") is a neologism coined to describe cooperative competition. Coopetition is a portmanteau of cooperation and competition. Basic principles of co-opetitive structures have been described in game theory, a scientific field that received more ... |
https://en.wikipedia.org/wiki/Virtual%20Processor | Virtual Processor (VP) was a virtual machine from Tao Group.
History
The first version, VP1, was the basis of its parallel processing multimedia OS and platform, TAOS. VP1 supported a RISC-like instruction set with 16 32-bit registers, and had data types of 32- and 64-bit integers and 32- and 64-bit IEEE floating poin... |
https://en.wikipedia.org/wiki/Cervical%20vertebrae | In tetrapods, cervical vertebrae (: vertebra) are the vertebrae of the neck, immediately below the skull. Truncal vertebrae (divided into thoracic and lumbar vertebrae in mammals) lie caudal (toward the tail) of cervical vertebrae. In sauropsid species, the cervical vertebrae bear cervical ribs. In lizards and saurisch... |
https://en.wikipedia.org/wiki/S-GPS | Simultaneous GPS or S-GPS is a method to allow a GPS reception and CDMA communications to operate simultaneously in a mobile phone.
Ordinarily, cellular geolocation and a built-in GPS receiver is used to determine the location of an E911 call made from CDMA phones. By using a time-multiplexed scheme called TM-GPS, th... |
https://en.wikipedia.org/wiki/Existential%20quantification | In predicate logic, an existential quantification is a type of quantifier, a logical constant which is interpreted as "there exists", "there is at least one", or "for some". It is usually denoted by the logical operator symbol ∃, which, when used together with a predicate variable, is called an existential quantifier (... |
https://en.wikipedia.org/wiki/Wireless%20identity%20theft | Wireless identity theft, also known as contactless identity theft or RFID identity theft, is a form of identity theft described as "the act of compromising an individual’s personal identifying information using wireless (radio frequency) mechanics." Numerous articles have been written about wireless identity theft and... |
https://en.wikipedia.org/wiki/ACOT6 | Acyl-CoA thioesterase 6 is a protein that in humans is encoded by the ACOT6 gene. The protein, also known as C14orf42, is an enzyme with thioesterase activity.
Function
The protein encoded by the ACOT1 gene is part of a family of Acyl-CoA thioesterases, which catalyze the hydrolysis of various Coenzyme A esters of va... |
https://en.wikipedia.org/wiki/Shadertoy | Shadertoy.com is an online community and tool for creating and sharing shaders through WebGL, used for both learning and teaching 3D computer graphics in a web browser.
Overview
Shadertoy.com is an online community and platform for computer graphics professionals, academics and enthusiasts who share, learn and exper... |
https://en.wikipedia.org/wiki/Thorpe%E2%80%93Ingold%20effect | The Thorpe–Ingold effect, gem-dimethyl effect, or angle compression is an effect observed in chemistry where increasing steric hindrance favours ring closure and intramolecular reactions. The effect was first reported by Beesley, Thorpe, and Ingold in 1915 as part of a study of cyclization reactions. It has since been... |
https://en.wikipedia.org/wiki/Functional%20near-infrared%20spectroscopy | Functional near-infrared spectroscopy (fNIRS) is an optical brain monitoring technique which uses near-infrared spectroscopy for the purpose of functional neuroimaging. Using fNIRS, brain activity is measured by using near-infrared light to estimate cortical hemodynamic activity which occur in response to neural activi... |
https://en.wikipedia.org/wiki/Live%20File%20System | Live File System is the term Microsoft uses to describe the packet writing method of creating discs in Windows Vista and later, which allows writeable optical media to act like mass storage by replicating its file operations. Live File System lets users manage files on recordable and rewriteable optical discs inside th... |
https://en.wikipedia.org/wiki/Beverly%20Clock | The Beverly Clock is a clock in the 3rd-floor lift foyer of the Department of Physics at the University of Otago, Dunedin, New Zealand. The clock is still running despite never having been manually wound since its construction in 1864 by Arthur Beverly.
Operation
The clock's mechanism is driven by variations in daily ... |
https://en.wikipedia.org/wiki/Dipole%20antenna | In radio and telecommunications a dipole antenna or doublet is the simplest and most widely used class of antenna. The dipole is any one of a class of antennas producing a radiation pattern approximating that of an elementary electric dipole with a radiating structure supporting a line current so energized that the cur... |
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