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https://en.wikipedia.org/wiki/Toeplitz%20operator | In operator theory, a Toeplitz operator is the compression of a multiplication operator on the circle to the Hardy space.
Details
Let S1 be the circle, with the standard Lebesgue measure, and L2(S1) be the Hilbert space of square-integrable functions. A bounded measurable function g on S1 defines a multiplication ope... |
https://en.wikipedia.org/wiki/Diversity%E2%80%93function%20debate | Functional diversity, composition, and species richness affect the biogeochemical processes of ecosystems. However, the degree to which these factors influence ecosystems and whether that influence is significant is debated.
In the article The Influence of Functional Diversity and Composition on Ecosystem Processes, s... |
https://en.wikipedia.org/wiki/MMTP2 | Multiple myeloma tumor-associated protein 2 is a protein in humans that is encoded by the MMTP2 gene. |
https://en.wikipedia.org/wiki/Mathematics%20and%20architecture | Mathematics and architecture are related, since, as with other arts, architects use mathematics for several reasons. Apart from the mathematics needed when engineering buildings, architects use geometry: to define the spatial form of a building; from the Pythagoreans of the sixth century BC onwards, to create forms con... |
https://en.wikipedia.org/wiki/Genus%20theory | In the mathematical theory of games, genus theory in impartial games is a theory by which some games played under the misère play convention can be analysed, to predict the outcome class of games.
Genus theory was first published in the book On Numbers and Games, and later in Winning Ways for your Mathematical Plays V... |
https://en.wikipedia.org/wiki/Constantin%20E.%20Sekeris | Constantin Sekeris was a Greek biochemist and molecular biologist.
Early life
He was born in Nafplio, the first capital of Greece and his paternal family home. During World War II, he accompanied his parents to Egypt, South Africa, and finally the United States (U.S.), where his father held ministerial posts in the G... |
https://en.wikipedia.org/wiki/Illumos | Illumos (stylized as illumos) is a partly free and open-source Unix operating system. It is based on OpenSolaris, which was based on System V Release 4 (SVR4) and the Berkeley Software Distribution (BSD). Illumos comprises a kernel, device drivers, system libraries, and utility software for system administration. This ... |
https://en.wikipedia.org/wiki/170th%20meridian%20east | The meridian 170° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Asia, the Pacific Ocean, New Zealand, the Southern Ocean, and Antarctica to the South Pole.
The 170th meridian east forms a great circle with the 10th meridian west.
From Pole to Pole
Starting at the N... |
https://en.wikipedia.org/wiki/4000-series%20integrated%20circuits | The 4000 series is a CMOS logic family of integrated circuits (ICs) first introduced in 1968 by RCA. It was slowly migrated into the 4000B buffered series after about 1975. It had a much wider supply voltage range than any contemporary logic family (3V to 18V recommended range for "B" series). Almost all IC manufacture... |
https://en.wikipedia.org/wiki/Koornwinder%20polynomials | In mathematics, Macdonald-Koornwinder polynomials (also called Koornwinder polynomials) are a family of orthogonal polynomials in several variables, introduced by Koornwinder and I. G. Macdonald, that generalize the Askey–Wilson polynomials. They are the Macdonald polynomials attached to the non-reduced affine root sys... |
https://en.wikipedia.org/wiki/Infinity-Borel%20set | In set theory, a subset of a Polish space is ∞-Borel if it
can be obtained by starting with the open subsets of , and transfinitely iterating the operations of complementation and wellordered union. This concept is usually considered without the assumption of the axiom of choice, which means that the ∞-Borel sets may ... |
https://en.wikipedia.org/wiki/Propidium%20monoazide | Propidium monoazide (PMA) is a photoreactive DNA-binding dye that preferentially binds to dsDNA. It is used to detect viable microorganisms by qPCR. Visible light (high power halogen lamps or specific LED devices) induces a photoreaction of the chemical that will lead to a covalent bond with PMA and the dsDNA. The mech... |
https://en.wikipedia.org/wiki/Electrical%20penetration%20graph | The electrical penetration graph or EPG is a system used by biologists to study the interaction of insects such as aphids, thrips, and leafhoppers with plants. Therefore, it can also be used to study the basis of plant virus transmission, host plant selection by insects and the way in which insects can find and feed fr... |
https://en.wikipedia.org/wiki/Stanis%C5%82aw%20Ulam | Stanisław Marcin Ulam (; 13 April 1909 – 13 May 1984) was a Polish-American mathematician and nuclear physicist. He participated in the Manhattan Project, originated the Teller–Ulam design of thermonuclear weapons, discovered the concept of the cellular automaton, invented the Monte Carlo method of computation, and sug... |
https://en.wikipedia.org/wiki/Cyclic%20symmetry%20in%20three%20dimensions | In three dimensional geometry, there are four infinite series of point groups in three dimensions (n≥1) with n-fold rotational or reflectional symmetry about one axis (by an angle of 360°/n) that does not change the object.
They are the finite symmetry groups on a cone. For n = ∞ they correspond to four frieze groups.... |
https://en.wikipedia.org/wiki/European%20Committee%20on%20Antimicrobial%20Susceptibility%20Testing | European Committee on Antimicrobial Susceptibility Testing (EUCAST) is a scientific committee for defining guidelines to interpret antimicrobial resistance. It was formed in 1997 and is jointly organized by ESCMID, ECDC and other European laboratories.
EUCAST guidelines are one of the most popular breakpoint guideline... |
https://en.wikipedia.org/wiki/Reverse%20complement%20polymerase%20chain%20reaction | Reverse complement polymerase chain reaction (RC-PCR) is a modification of the polymerase chain reaction (PCR). It is primarily used to generate amplicon libraries for DNA sequencing by next generation sequencing (NGS). The technique permits both the amplification and the ability to append sequences or functional domai... |
https://en.wikipedia.org/wiki/Multichannel%20analyzer | A multichannel analyzer (MCA) is an instrument used in laboratory and field applications to analyze an input signal consisting of voltage pulses. MCAs are used extensively in digitizing various spectroscopy measurements, especially those related to nuclear physics, including various types of spectroscopy (alpha-, beta-... |
https://en.wikipedia.org/wiki/Tryptic%20soy-serum-bacitracin-vancomycin | Tryptic soy-serum-bacitracin-vancomycin (TSBV) is a type of agar plate medium used in microbiological testing to select for Aggregatibacter actinomycetemcomitans (A. a.). It was described by Jørgen Slots in 1982, who also discovered the role of A.a. in periodontitis.
Per litre, TSBV contains:
40 g tryptic soy agar
... |
https://en.wikipedia.org/wiki/Multinucleate | Multinucleate cells (also known as multinucleated or polynuclear cells) are eukaryotic cells that have more than one nucleus per cell, i.e., multiple nuclei share one common cytoplasm. Mitosis in multinucleate cells can occur either in a coordinated, synchronous manner where all nuclei divide simultaneously or asynchro... |
https://en.wikipedia.org/wiki/Skoda%E2%80%93El%20Mir%20theorem | The Skoda–El Mir theorem is a theorem of complex geometry,
stated as follows:
Theorem (Skoda, El Mir, Sibony). Let X be a complex manifold, and
E a closed complete pluripolar set in X. Consider a closed positive current on
which is locally integrable around E. Then the trivial extension of to X is closed on X.
... |
https://en.wikipedia.org/wiki/CUX1 | CUX1 is an animal gene. The name stands for Cut like homeobox 1. The term "cut" derives from the "cut wing" phenotype observed in a mutant of Drosophila melanogaster. In mammals, a CCAAT-displacement activity was originally described in DNA binding assays. The human gene was identified following purification of the CCA... |
https://en.wikipedia.org/wiki/Fred%20B.%20Schneider | Fred Barry Schneider (born December 7, 1953) is an American computer scientist, based at Cornell University, where he is the Samuel B. Eckert Professor of Computer Science. He has published in numerous areas including science policy, cybersecurity, and distributed systems. His research is in the area of concurrent and ... |
https://en.wikipedia.org/wiki/Kretschmann%20scalar | In the theory of Lorentzian manifolds, particularly in the context of applications to general relativity, the Kretschmann scalar is a quadratic scalar invariant. It was introduced by Erich Kretschmann.
Definition
The Kretschmann invariant is
where is the Riemann curvature tensor (in this equation the Einstein summa... |
https://en.wikipedia.org/wiki/Ecological%20urbanism | Ecological urbanism draws from ecology to inspire an urbanism that is more socially inclusive and sensitive to the environment. It is less ideologically driven, than green urbanism or sustainable urbanism. In many ways, ecological urbanism is an evolution of, and a critique of, Landscape Urbanism arguing for a more hol... |
https://en.wikipedia.org/wiki/P.%20S.%20Krishnaprasad | P. S. Krishnaprasad is a professor at the Department of Electrical and Computer Engineering (ECE) and Institute for Systems Research (ISR) of the University of Maryland. A 1977 Harvard PhD, he began his professorial career at Case Western Reserve University's Systems Engineering Department before joining the Universi... |
https://en.wikipedia.org/wiki/International%20Max%20Planck%20Research%20School%20for%20Molecular%20and%20Cellular%20Biology | The International Max Planck Research School for Molecular and Cellular Biology (IMPRS-MCB) is an international PhD program in molecular biology and cellular biology founded in 2006 by the Max Planck Institute of Immunobiology and Epigenetics and the University of Freiburg.
The Max Planck Society (MPG) started in 2000... |
https://en.wikipedia.org/wiki/Acceleware | Acceleware Ltd. (TSX-V: AXE) is a Canadian innovator of clean-tech oil and gas technologies composed of two business units: Radio Frequency (RF) Enhanced Oil Recovery and Seismic Imaging Software. The company is currently running a commercial-scale, RF XL pilot project at Marwayne, Alberta, Canada, to advance and valid... |
https://en.wikipedia.org/wiki/Electroluminescent%20display | Electroluminescent Displays (ELDs) are a type of flat panel display created by sandwiching a layer of electroluminescent material such as Gallium arsenide between two layers of conductors. When current flows, the layer of material emits radiation in the form of visible light. Electroluminescence (EL) is an optical and ... |
https://en.wikipedia.org/wiki/Schiehallion%20experiment | The Schiehallion experiment was an 18th-century experiment to determine the mean density of the Earth. Funded by a grant from the Royal Society, it was conducted in the summer of 1774 around the Scottish mountain of Schiehallion, Perthshire. The experiment involved measuring the tiny deflection of the vertical due to t... |
https://en.wikipedia.org/wiki/Glutathione-ascorbate%20cycle | The ascorbate-glutathione cycle, sometimes Foyer-Halliwell-Asada pathway, is a metabolic pathway that detoxifies hydrogen peroxide (H2O2), a reactive oxygen species that is produced as a waste product in metabolism. The cycle involves the antioxidant metabolites: ascorbate, glutathione and NADPH and the enzymes linking... |
https://en.wikipedia.org/wiki/MDSP | MDSP is a multiprocessor DSP family from Cradle Technologies. Currently used mostly in streaming video processing in broadcast (internet and terrestrial) and video surveillance security markets.
It is a loosely coupled architecture that employs compute and Input/output (IO) subsystems with programmable (software defi... |
https://en.wikipedia.org/wiki/SynfiniWay | SynfiniWay was middleware with which a virtualised IT framework can be created that provides a uniform and global view of resources within a department, a company, or a company with its suppliers. This virtualised IT framework is service-oriented, meaning that applications are run as services, which are a system-indepe... |
https://en.wikipedia.org/wiki/U-87%20MG | In cell biology, U-87 MG is a human glioblastoma cell line that is commonly used in brain cancer research.
History and Characteristics
Formally known as U-87 MG (abbreviation for Uppsala 87 Malignant Glioma), the U87 cell line has an epithelial morphology and was obtained from a 44-year-old female patient in 1966 at U... |
https://en.wikipedia.org/wiki/Enterprise%20Mashup%20Markup%20Language | EMML, or Enterprise Mashup Markup Language, is an XML markup language for creating enterprise mashups, which are software applications that consume and mash data from variety of sources, often performing logical or mathematical operations as well as presenting data.
Mashed data produced by enterprise mashups are pres... |
https://en.wikipedia.org/wiki/Nature%20connectedness | Nature connectedness is the extent to which individuals include nature as part of their identity. It includes an understanding of nature and everything it is made up of, even the parts that are not pleasing. Characteristics of nature connectedness are similar to those of a personality trait: nature connectedness is sta... |
https://en.wikipedia.org/wiki/Chain%20drive | Chain drive is a way of transmitting mechanical power from one place to another. It is often used to convey power to the wheels of a vehicle, particularly bicycles and motorcycles. It is also used in a wide variety of machines besides vehicles.
Most often, the power is conveyed by a roller chain, known as the drive ch... |
https://en.wikipedia.org/wiki/Spintronics | Spintronics (a portmanteau meaning spin transport electronics), also known as spin electronics, is the study of the intrinsic spin of the electron and its associated magnetic moment, in addition to its fundamental electronic charge, in solid-state devices. The field of spintronics concerns spin-charge coupling in metal... |
https://en.wikipedia.org/wiki/Particle%20swarm%20optimization | In computational science, particle swarm optimization (PSO) is a computational method that optimizes a problem by iteratively trying to improve a candidate solution with regard to a given measure of quality. It solves a problem by having a population of candidate solutions, here dubbed particles, and moving these parti... |
https://en.wikipedia.org/wiki/Robert%20Frankenberg | Robert J. Frankenberg (born 1947) is an American computer engineer and business executive who served as chairman, president and chief executive officer of Novell, Inc. from 1994 to 1996.
Life and career
Frankenberg spent much of his career at Hewlett-Packard (HP), starting there in 1969. While at HP, he earned a degr... |
https://en.wikipedia.org/wiki/Multiplexing | In telecommunications and computer networking, multiplexing (sometimes contracted to muxing) is a method by which multiple analog or digital signals are combined into one signal over a shared medium. The aim is to share a scarce resource a physical transmission medium. For example, in telecommunications, several telep... |
https://en.wikipedia.org/wiki/Gottesman%E2%80%93Knill%20theorem | In quantum computing, the Gottesman–Knill theorem is a theoretical result by Daniel Gottesman and Emanuel Knill that states that stabilizer circuits, circuits that only consist of gates from the normalizer of the qubit Pauli group, also called Clifford group, can be perfectly simulated in polynomial time on a probabili... |
https://en.wikipedia.org/wiki/Horseshoe%20%28symbol%29 | Horseshoe (⊃, \supset in TeX) is a symbol used to represent:
Material conditional in propositional logic
Superset in set theory
It was used by Whitehead and Russell in Principia Mathematica. In Unicode the symbol is encoded .
See also
List of mathematical symbols
List of logic symbols
⊂
ʊ
Ω |
https://en.wikipedia.org/wiki/Artnet | Artnet.com is an art market website. It is operated by Artnet Worldwide Corporation, which has headquarters in New York City, New York, in the United States. It is owned by Artnet AG, a German publicly traded company based in Berlin that is listed on the Frankfurt Stock Exchange. The company increased revenues by 25.3%... |
https://en.wikipedia.org/wiki/Winepress | A winepress is a device used to extract juice from crushed grapes during winemaking. There are a number of different styles of presses that are used by wine makers but their overall functionality is the same. Each style of press exerts controlled pressure in order to free the juice from the fruit (most often grapes). T... |
https://en.wikipedia.org/wiki/Video%20Display%20Corporation | Video Display Corp. is a Tucker, Georgia manufacturer of digital projector display units, and a manufacturer and distributor of cathode ray tubes used in data display screens.
History
Video Display was founded in 1975 by Ronald Ordway, who has remained chairman and CEO since that time. He is also the company's largest... |
https://en.wikipedia.org/wiki/Teacher%20forcing | Teacher forcing is an algorithm for training the weights of recurrent neural networks (RNNs). It involves feeding observed sequence values (i.e. ground-truth samples) back into the RNN after each step, thus forcing the RNN to stay close to the ground-truth sequence.
The term "teacher forcing" can be motivated by compa... |
https://en.wikipedia.org/wiki/Taylor%27s%20law | Taylor's power law is an empirical law in ecology that relates the variance of the number of individuals of a species per unit area of habitat to the corresponding mean by a power law relationship. It is named after the ecologist who first proposed it in 1961, Lionel Roy Taylor (1924–2007). Taylor's original name for t... |
https://en.wikipedia.org/wiki/Illumina%2C%20Inc. | Illumina, Inc. is an American biotechnology company, headquartered in San Diego, California, and it serves more than 140 countries. Incorporated on April 1, 1998, Illumina develops, manufactures, and markets integrated systems for the analysis of genetic variation and biological function. The company provides a line of... |
https://en.wikipedia.org/wiki/Criticism%20of%20evolutionary%20psychology | Evolutionary psychology seeks to identify and understand human psychological traits that have evolved in much the same way as biological traits, through adaptation to environmental cues. Furthermore, it tends toward viewing the vast majority of psychological traits, certainly the most important ones, as the result of p... |
https://en.wikipedia.org/wiki/Dispersive%20mass%20transfer | Dispersive mass transfer, in fluid dynamics, is the spreading of mass from highly concentrated areas to less concentrated areas. It is one form of mass transfer.
Dispersive mass flux is analogous to diffusion, and it can also be described using Fick's first law:
where c is mass concentration of the species being disp... |
https://en.wikipedia.org/wiki/Astrological%20symbols | Historically, astrological and astronomical symbols have overlapped. Frequently used symbols include signs of the zodiac and classical planets. These originate from medieval Byzantine codices. Their current form is a product of the European Renaissance. Other symbols for astrological aspects are used in various astrolo... |
https://en.wikipedia.org/wiki/Proof%20of%20Fermat%27s%20Last%20Theorem%20for%20specific%20exponents | Fermat's Last Theorem is a theorem in number theory, originally stated by Pierre de Fermat in 1637 and proven by Andrew Wiles in 1995. The statement of the theorem involves an integer exponent n larger than 2. In the centuries following the initial statement of the result and before its general proof, various proofs ... |
https://en.wikipedia.org/wiki/18th%20meridian%20east | The meridian 18° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Europe, Africa, the Atlantic Ocean, the Southern Ocean, and Antarctica to the South Pole.
The 18th meridian east forms a great circle with the 162nd meridian west.
From Pole to Pole
Starting at the Nort... |
https://en.wikipedia.org/wiki/Internet%20Society | The Internet Society (ISOC) is an American nonprofit advocacy organization founded in 1992 with local chapters around the world. Its mission is "to promote the open development, evolution, and use of the Internet for the benefit of all people throughout the world." It has offices in Reston, Virginia, U.S., and Geneva, ... |
https://en.wikipedia.org/wiki/International%20Life%20Sciences%20Institute | The International Life Sciences Institute (ILSI) is a global nonprofit 501(c)(3) organization headquartered in Washington, DC, United States that publishes peer-reviewed studies on nutrition and food safety. It was founded in 1978 by Alex Malaspina, a former Coca-Cola executive (who was affiliated with ILSI until 2001)... |
https://en.wikipedia.org/wiki/Chebyshev%27s%20inequality | In probability theory, Chebyshev's inequality (also called the Bienaymé–Chebyshev inequality) guarantees that, for a wide class of probability distributions, no more than a certain fraction of values can be more than a certain distance from the mean. Specifically, no more than 1/k2 of the distribution's values can be k... |
https://en.wikipedia.org/wiki/Cervid%20alphaherpesvirus%202 | Cervid alphaherpesvirus 2 (CvHV-2) is a species of virus in the genus Varicellovirus, subfamily Alphaherpesvirinae, family Herpesviridae, and order Herpesvirales. |
https://en.wikipedia.org/wiki/Transformation%20of%20text | Transformations of text are strategies to perform geometric transformations on text (reversal, rotations, etc.), particularly in systems that do not natively support transformation, such as HTML, seven-segment displays and plain text.
Implementation
Many systems, such as HTML, seven-segment displays and plain text, d... |
https://en.wikipedia.org/wiki/Excitatory%20postsynaptic%20potential | In neuroscience, an excitatory postsynaptic potential (EPSP) is a postsynaptic potential that makes the postsynaptic neuron more likely to fire an action potential. This temporary depolarization of postsynaptic membrane potential, caused by the flow of positively charged ions into the postsynaptic cell, is a result of ... |
https://en.wikipedia.org/wiki/Animal%20welfare%20science | Animal welfare science is the scientific study of the welfare of animals as pets, in zoos, laboratories, on farms and in the wild. Although animal welfare has been of great concern for many thousands of years in religion and culture, the investigation of animal welfare using rigorous scientific methods is a relatively ... |
https://en.wikipedia.org/wiki/Canadian%20pale | In heraldry and vexillology, a Canadian pale is a centre band of a vertical triband flag (a pale in heraldry) that covers half the length of a flag, rather than a third as in most triband designs. This allows more space to display a central image (common charge). The name was suggested by Sir Conrad Swan, Rouge Dragon ... |
https://en.wikipedia.org/wiki/Friedrich%20Hartogs | Friedrich Moritz "Fritz" Hartogs (20 May 1874 – 18 August 1943) was a German-Jewish mathematician, known for his work on set theory and foundational results on several complex variables.
Life
Hartogs was the son of the merchant Gustav Hartogs and his wife Elise Feist and grew up in Frankfurt am Main.
He studied at t... |
https://en.wikipedia.org/wiki/Oxidative/fermentation%20glucose%20test | Oxidative/fermentation glucose test (OF glucose test) is a biological technique. It was developed in 1953 by Hugh and Leifson to be utilized in microbiology to determine the way a microorganism metabolizes a carbohydrate such as glucose (dextrose). OF-glucose deeps contain glucose as a carbohydrate, peptones, bromothym... |
https://en.wikipedia.org/wiki/Columella%20%28botany%29 | Columella (in plants) is an axis of sterile tissue which passes through the center of the spore-case of mosses. In fungi it refers to a centrally vacuolated part of a hypha, bearing spores. The word finds analogous usage in myxomycetes.
The term columella is also used to refer to story 1 to story 4 (S1 – S4) cells in ... |
https://en.wikipedia.org/wiki/Dual%20impedance | Dual impedance and dual network are terms used in electronic network analysis. The dual of an impedance is its reciprocal, or algebraic inverse . For this reason, the dual impedance is also called the inverse impedance. Another way of stating this is that the dual of is the admittance .
The dual of a network is the ... |
https://en.wikipedia.org/wiki/FASTRAD | FASTRAD is a tool dedicated to the calculation of radiation effects (Dose and Displacement Damage) on electronics. The tool includes a 3d modelling interface with all the capabilities required for the representation of any system. Application areas include: high energy physics and nuclear experiments, medical, acceler... |
https://en.wikipedia.org/wiki/Hudde%27s%20rules | In mathematics, Hudde's rules are two properties of polynomial roots described by Johann Hudde.
1. If r is a double root of the polynomial equation
and if are numbers in arithmetic progression, then r is also a root of
This definition is a form of the modern theorem that if r is a double root of ƒ(x) = 0, then r is... |
https://en.wikipedia.org/wiki/Shpolskii%20matrix | Shpolskii systems are low-temperature host–guest systems – they are typically rapidly frozen solutions of polycyclic aromatic hydrocarbons in suitable low molecular weight normal alkanes. The emission and absorption spectra of lowest energy electronic transitions in the Shpolskii systems exhibit narrow lines instead of... |
https://en.wikipedia.org/wiki/Nicole%20Tomczak-Jaegermann | Nicole Tomczak-Jaegermann FRSC (8 June 1945 – 17 June 2022) was a Polish-Canadian mathematician, a professor of mathematics at the University of Alberta, and the holder of the Canada Research Chair in Geometric Analysis.
Contributions
Her research is in geometric functional analysis, and is unusual in combining asymp... |
https://en.wikipedia.org/wiki/Heteroskedasticity-consistent%20standard%20errors | The topic of heteroskedasticity-consistent (HC) standard errors arises in statistics and econometrics in the context of linear regression and time series analysis. These are also known as heteroskedasticity-robust standard errors (or simply robust standard errors), Eicker–Huber–White standard errors (also Huber–White s... |
https://en.wikipedia.org/wiki/Gastropoda | The gastropods (), commonly known as slugs and snails, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, freshwater, and from the land. There are many thousands of species of sea snails and slugs, as well as freshwa... |
https://en.wikipedia.org/wiki/Wimkin | Wimkin is an alt-tech social network that claims to promote free speech. The site describes itself as "100% uncensored social media". Wimkin was launched in August 2020 and was founded by Jason Sheppard.
As of January 2021, Wimkin had 300,000 users.
History
Wimkin launched in August 2020 after being founded by Jason... |
https://en.wikipedia.org/wiki/Rank%20%28graph%20theory%29 | In graph theory, a branch of mathematics, the rank of an undirected graph has two unrelated definitions. Let equal the number of vertices of the graph.
In the matrix theory of graphs the rank of an undirected graph is defined as the rank of its adjacency matrix.
Analogously, the nullity of the graph is the nulli... |
https://en.wikipedia.org/wiki/Leslie%20cube | Leslie's cube is a device used in the measurement or demonstration of the variations in thermal radiation emitted from different surfaces at the same temperature.
Device
It was devised in 1804 by John Leslie (1766–1832), a Scottish mathematician and physicist. In the version of the experiment described by John Tyndal... |
https://en.wikipedia.org/wiki/Injury%20in%20animals | Injury in animals is damage to the body caused by wounding, change in pressure, heat or cold, chemical substances, venoms and biotoxins. Injury prompts an inflammatory response in many taxa of animals; this prompts wound healing, which may be rapid, as in the Cnidaria.
Causes
Injuries to animals including humans ca... |
https://en.wikipedia.org/wiki/VCX%20score | VCX score is a smartphone camera benchmarking score described as "designed to reflect the user experience regarding the image quality and the performance of a camera in a mobile device". developed by a non-profit organization - VCX-Forum.
VCX scores are used by specialist media and by VCX-Forum members to showcase the... |
https://en.wikipedia.org/wiki/MS%20Polarfront | MS Polarfront was a Norwegian weather ship located in the North Atlantic Ocean. It was the last remaining weather ship in the world, maintained by the Norwegian Meteorological Institute.
A weather ship is a ship stationed in mid-ocean to make meteorological observations for weather forecasting. Since the 1960s this ro... |
https://en.wikipedia.org/wiki/RP-570 | RP-570 is a communications protocol used in industrial environments to communicate between a front-end computer and the substation to be controlled.
It is a SCADA legacy protocol and is based on the low-level protocol IEC TC57, format class 1.2.
RP-570 stands for:
"RTU Protocol based on IEC 57 part 5-1 (present IEC ... |
https://en.wikipedia.org/wiki/16%20%28number%29 | 16 (sixteen) is the natural number following 15 and preceding 17. 16 is the ninth composite number, and a square number, being 42 = 4 × 4. It is the smallest number with exactly five divisors, its proper divisors being , , and .
16 is the first non-unitary fourth-power prime of the form p4
The aliquot sum of a 2-po... |
https://en.wikipedia.org/wiki/Bromelia%20pinguin | Bromelia pinguin is a plant species in the genus Bromelia. This species is native to Central America, Mexico, the West Indies and northern South America. It is also reportedly naturalized in Florida. It is very common in Jamaica, where it is planted as a fence around pasture lands, on account of its prickly leaves. The... |
https://en.wikipedia.org/wiki/IBM%20Portable%20Personal%20Computer | The IBM Portable Personal Computer 5155 model 68 is an early portable computer developed by IBM after the success of the suitcase-size Compaq Portable. It was released in February 1984 and was quickly replaced by the IBM Convertible, only roughly two years after its debut.
Design
The Portable was basically a PC/XT mot... |
https://en.wikipedia.org/wiki/Journal%20of%20Social%20and%20Evolutionary%20Systems | The Journal of Social and Evolutionary Systems was a quarterly peer-reviewed scientific journal covering the intersection of biology and sociology. It was established in 1978 as the Journal of Social and Biological Structures by James Danielli and Harvey Wheeler, who served as its founding editors-in-chief; they were l... |
https://en.wikipedia.org/wiki/Anterior%20nasal%20spine | The anterior nasal spine, or anterior nasal spine of maxilla, is a bony projection in the skull that serves as a cephalometric landmark. The anterior nasal spine is the projection formed by the fusion of the two maxillary bones at the intermaxillary suture. It is placed at the level of the nostrils, at the uppermost pa... |
https://en.wikipedia.org/wiki/Elbrus-8S | The Elbrus-8S () is a Russian 28 nanometer 8-core microprocessor developed by Moscow Center of SPARC Technologies (MCST). The first prototypes were produced by the end of 2014 and serial production started in 2016. The Elbrus-8S is to be used in servers and workstations. The processor's architecture allows support of u... |
https://en.wikipedia.org/wiki/Lateral%20sural%20cutaneous%20nerve | The lateral sural cutaneous nerve of the lumbosacral plexus supplies the skin on the posterior and lateral surfaces of the leg. The lateral sural cutaneous nerve originates from the common fibular nerve(L4-S2) and is the terminal branch of the common fibular nerve.
Sural communicating branch
One branch, the sural co... |
https://en.wikipedia.org/wiki/Gravitation%20%28M.%20C.%20Escher%29 | Gravitation (also known as Gravity) is a mixed media work by the Dutch artist M. C. Escher completed in June 1952. It was first printed as a black-and-white lithograph and then coloured by hand in watercolour.
It depicts a nonconvex regular polyhedron known as the small stellated dodecahedron. Each facet of the figure... |
https://en.wikipedia.org/wiki/Timing | Timing is the tracking or planning of the spacing of events in time. It may refer to:
Timekeeping, the process of measuring the passage of time
Synchronization, controlling the timing of a process relative to another process
Time metrology, the measurement of time
Timing in different fields
Timing (comedy), use o... |
https://en.wikipedia.org/wiki/Seawater | Seawater, or sea water, is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5% (35 g/L, 35 ppt, 600 mM). This means that every kilogram (roughly one liter by volume) of seawater has approximately of dissolved salts (predominantly sodium () and chloride () ions). The avera... |
https://en.wikipedia.org/wiki/Silver%20telluride | Silver telluride (Ag2Te) is a chemical compound, a telluride of silver, also known as disilver telluride or silver(I) telluride. It forms a monoclinic crystal. In a wider sense, silver telluride can be used to denote AgTe (silver(II) telluride, a metastable compound) or Ag5Te3.
Silver(I) telluride occurs naturally as ... |
https://en.wikipedia.org/wiki/List%20of%20biosafety%20level%204%20organisms | Biosafety level 4 (BSL-4) organisms are dangerous or exotic agents which pose high risk of life-threatening disease, aerosol-transmitted lab infections, or related agents with unknown risk of transmission.
US federal biocontainment regulations
Biosafety level 4 laboratories are designed for diagnostic work and resea... |
https://en.wikipedia.org/wiki/History%20of%20computing%20hardware%20%281960s%E2%80%93present%29 | The history of computing hardware starting at 1960 is marked by the conversion from vacuum tube to solid-state devices such as transistors and then integrated circuit (IC) chips. Around 1953 to 1959, discrete transistors started being considered sufficiently reliable and economical that they made further vacuum tube co... |
https://en.wikipedia.org/wiki/Rainbow%20Six%20%28novel%29 | Rainbow Six is a techno-thriller novel written by Tom Clancy and released on August 3, 1998. It is the second book to primarily focus on John Clark, one of the recurring characters in the Ryanverse, after Without Remorse (1993); it also features his son-in-law, Domingo "Ding" Chavez. Rainbow Six follows "Rainbow", a se... |
https://en.wikipedia.org/wiki/StarText | StarText was an online ASCII-based computer service run by the Fort Worth Star-Telegram and the Tandy Corporation and marketed in the Dallas-Fort Worth Metroplex newspaper circulation area from May 3, 1982 until March 3, 1997. Its name was derived from Star (representing the newspaper which would provide the content) a... |
https://en.wikipedia.org/wiki/Multisystem%20inflammatory%20syndrome | Multisystem inflammatory syndrome may refer to:
Multisystem inflammatory syndrome in children (also known as 'paediatric multisystem inflammatory syndrome'), a rare life-threatening illness resembling Kawasaki disease that has been observed following exposure to the virus responsible for COVID-19; a similar syndrome h... |
https://en.wikipedia.org/wiki/34%20%28number%29 | 34 (thirty-four) is the natural number following 33 and preceding 35.
In mathematics
34 is the ninth distinct semiprime, with four divisors including 1 and itself. Specifically, 34 is the ninth distinct semiprime, it being the sixth of the form . Its neighbors 33 and 35 are also distinct semiprimes with four divisors ... |
https://en.wikipedia.org/wiki/Coherence%20%28statistics%29 | In probability theory and statistics, coherence can have several different meanings. Coherence in statistics is an indication of the quality of the information, either within a single data set, or between similar but not identical data sets. Fully coherent data are logically consistent and can be reliably combined for ... |
https://en.wikipedia.org/wiki/STD%208 | STD 8 refers to two Internet Engineering Task Force standards proposed by Jonathan B. Postel and Joyce K. Reynolds from University of Southern California Information Sciences Institute in their Request for Comments published in May 1983.
Among other features Telnet protocol was assigned server port 23.
STD 8 (RFC 854... |
https://en.wikipedia.org/wiki/Fermi%20point | The term Fermi point has two applications but refers to the same phenomena (special relativity):
Fermi point (quantum field theory)
Fermi point (nanotechnology)
For both applications count that the symmetry between particles and anti-particles in weak interactions is violated:
At this point the particle energy is zer... |
https://en.wikipedia.org/wiki/Erd%C5%91s%E2%80%93Ulam%20problem | In mathematics, the Erdős–Ulam problem asks whether the plane contains a dense set of points whose Euclidean distances are all rational numbers. It is named after Paul Erdős and Stanislaw Ulam.
Large point sets with rational distances
The Erdős–Anning theorem states that a set of points with integer distances must eit... |
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