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https://en.wikipedia.org/wiki/John%20Galbraith%20Graham | The Reverend John Galbraith Graham MBE (16 February 1921 – 26 November 2013) was a British crossword compiler, best known as Araucaria of The Guardian. He was also, like his father Eric Graham, a Church of England priest.
Career
Graham was born in Oxford, where his father, Eric Graham, held the post of dean of Oriel ... |
https://en.wikipedia.org/wiki/Canny%20edge%20detector | The Canny edge detector is an edge detection operator that uses a multi-stage algorithm to detect a wide range of edges in images. It was developed by John F. Canny in 1986. Canny also produced a computational theory of edge detection explaining why the technique works.
Development
Canny edge detection is a technique... |
https://en.wikipedia.org/wiki/Noise%20reduction | Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort the signal to some degree. Noise rejection is the ability of a circuit to isolate an undesired signal component from the desired signal component, as with common-... |
https://en.wikipedia.org/wiki/Kriging | In statistics, originally in geostatistics, kriging or Kriging, (pronounced /ˌˈkɹiːɡɪŋ/) also known as Gaussian process regression, is a method of interpolation based on Gaussian process governed by prior covariances. Under suitable assumptions of the prior, kriging gives the best linear unbiased prediction (BLUP) at ... |
https://en.wikipedia.org/wiki/Grumman%20E-1%20Tracer | The Grumman E-1 Tracer (WF prior to 1962) was the first purpose-built airborne early warning aircraft used by the United States Navy. It was a derivative of the Grumman C-1 Trader and entered service in 1958. It was replaced by the more modern Grumman E-2 Hawkeye by the 1970s.
Design and development
The E-1 was desi... |
https://en.wikipedia.org/wiki/Expressed%20sequence%20tag | In genetics, an expressed sequence tag (EST) is a short sub-sequence of a cDNA sequence. ESTs may be used to identify gene transcripts, and were instrumental in gene discovery and in gene-sequence determination. The identification of ESTs has proceeded rapidly, with approximately 74.2 million ESTs now available in publ... |
https://en.wikipedia.org/wiki/Metabolite | In biochemistry, a metabolite is an intermediate or end product of metabolism.
The term is usually used for small molecules. Metabolites have various functions, including fuel, structure, signaling, stimulatory and inhibitory effects on enzymes, catalytic activity of their own (usually as a cofactor to an enzyme), defe... |
https://en.wikipedia.org/wiki/Human%20metapneumovirus | Human metapneumovirus (HMPV or hMPV) is a negative-sense single-stranded RNA virus of the family Pneumoviridae and is closely related to the Avian metapneumovirus (AMPV) subgroup C. It was isolated for the first time in 2001 in the Netherlands by using the RAP-PCR (RNA arbitrarily primed PCR) technique for identificati... |
https://en.wikipedia.org/wiki/Helmholtz%27s%20theorems | In fluid mechanics, Helmholtz's theorems, named after Hermann von Helmholtz, describe the three-dimensional motion of fluid in the vicinity of vortex lines. These theorems apply to inviscid flows and flows where the influence of viscous forces are small and can be ignored.
Helmholtz's three theorems are as follows:
He... |
https://en.wikipedia.org/wiki/Greater%20galago | The greater galagos or thick-tailed bushbabies are three species of strepsirrhine primates. They are classified in the genus Otolemur in the family Galagidae.
Historical classification and species discovery
The diversity of galago species has historically been grossly underestimated. In 1931, only 5 species were recog... |
https://en.wikipedia.org/wiki/Uremia | Uremia is the term for high levels of urea in the blood. Urea is one of the primary components of urine. It can be defined as an excess in the blood of amino acid and protein metabolism end products, such as urea and creatinine, which would be normally excreted in the urine. Uremic syndrome can be defined as the termin... |
https://en.wikipedia.org/wiki/Hierarchical%20clustering | In data mining and statistics, hierarchical clustering (also called hierarchical cluster analysis or HCA) is a method of cluster analysis that seeks to build a hierarchy of clusters. Strategies for hierarchical clustering generally fall into two categories:
Agglomerative: This is a "bottom-up" approach: Each observati... |
https://en.wikipedia.org/wiki/Whitney%20embedding%20theorem | In mathematics, particularly in differential topology, there are two Whitney embedding theorems, named after Hassler Whitney:
The strong Whitney embedding theorem states that any smooth real -dimensional manifold (required also to be Hausdorff and second-countable) can be smoothly embedded in the real -space, if . Th... |
https://en.wikipedia.org/wiki/Sequence%20assembly | In bioinformatics, sequence assembly refers to aligning and merging fragments from a longer DNA sequence in order to reconstruct the original sequence. This is needed as DNA sequencing technology might not be able to 'read' whole genomes in one go, but rather reads small pieces of between 20 and 30,000 bases, depending... |
https://en.wikipedia.org/wiki/Protein%20isoform | A protein isoform, or "protein variant", is a member of a set of highly similar proteins that originate from a single gene or gene family and are the result of genetic differences. While many perform the same or similar biological roles, some isoforms have unique functions. A set of protein isoforms may be formed from ... |
https://en.wikipedia.org/wiki/Normal%20mode | A normal mode of a dynamical system is a pattern of motion in which all parts of the system move sinusoidally with the same frequency and with a fixed phase relation. The free motion described by the normal modes takes place at fixed frequencies. These fixed frequencies of the normal modes of a system are known as it... |
https://en.wikipedia.org/wiki/Medium-range%20ballistic%20missile | A medium-range ballistic missile (MRBM) is a type of ballistic missile with medium range, this last classification depending on the standards of certain organizations. Within the U.S. Department of Defense, a medium-range missile is defined by having a maximum range of between . In modern terminology, MRBMs are part of... |
https://en.wikipedia.org/wiki/Algebraically%20compact%20module | In mathematics, algebraically compact modules, also called pure-injective modules, are modules that have a certain "nice" property which allows the solution of infinite systems of equations in the module by finitary means. The solutions to these systems allow the extension of certain kinds of module homomorphisms. Th... |
https://en.wikipedia.org/wiki/AEA%20Silver%20Dart | The Silver Dart (or Aerodrome #4) was a derivative of an early aircraft built by a Canadian/U.S. team, which after many successful flights in Hammondsport, New York, earlier in 1908, was dismantled and shipped to Baddeck, Nova Scotia. It was flown from the ice of Baddeck Bay, a sub-basin of Bras d'Or Lake, on 23 Februa... |
https://en.wikipedia.org/wiki/Three-address%20code | In computer science, three-address code (often abbreviated to TAC or 3AC) is an intermediate code used by optimizing compilers to aid in the implementation of code-improving transformations. Each TAC instruction has at most three operands and is typically a combination of assignment and a binary operator. For example, ... |
https://en.wikipedia.org/wiki/Trellis%20modulation | In telecommunication, trellis modulation (also known as trellis coded modulation, or simply TCM) is a modulation scheme that transmits information with high efficiency over band-limited channels such as telephone lines. Gottfried Ungerboeck invented trellis modulation while working for IBM in the 1970s, and first descr... |
https://en.wikipedia.org/wiki/Mii%20District%2C%20Fukuoka | is a district located in Fukuoka Prefecture, Japan.
As of 2003 statistics (but following the merger of Kitano), the district has an estimated population of 15,378 and a density of 674 persons per km2. The total area is 22.83 km2.
Towns and villages
Tachiarai
Mergers
On February 5, 2005 the former town of Kitano merg... |
https://en.wikipedia.org/wiki/Mizuma%20District | is a district located in Fukuoka Prefecture, Japan.
As of 2003 statistics and counting the decrease in size and population due to the Kurume merger, the district has an estimated population of 14,305 and a density of 776 persons per km2. The total area is 18.43 km2.
Towns and villages
Ōki
Mergers
On February 5, 20... |
https://en.wikipedia.org/wiki/Commodity%20Futures%20Trading%20Commission | The Commodity Futures Trading Commission (CFTC) is an independent agency of the US government created in 1974 that regulates the U.S. derivatives markets, which includes futures, swaps, and certain kinds of options.
The Commodity Exchange Act (CEA), et seq., prohibits fraudulent conduct in the trading of futures, swa... |
https://en.wikipedia.org/wiki/List%20of%20cities%20and%20towns%20in%20Saudi%20Arabia | The following is a list of cities and towns in Saudi Arabia.
Alphabetical list of cities and towns
References
Central Department of Statistics and Information
Saudi Arabia, List of cities and towns in
Cities |
https://en.wikipedia.org/wiki/Extracellular%20fluid | In cell biology, extracellular fluid (ECF) denotes all body fluid outside the cells of any multicellular organism. Total body water in healthy adults is about 50–60% (range 45 to 75%) of total body weight; women and the obese typically have a lower percentage than lean men. Extracellular fluid makes up about one-third ... |
https://en.wikipedia.org/wiki/Myosin | Myosins () are a superfamily of motor proteins best known for their roles in muscle contraction and in a wide range of other motility processes in eukaryotes. They are ATP-dependent and responsible for actin-based motility.
The first myosin (M2) to be discovered was in 1864 by Wilhelm Kühne. Kühne had extracted a visc... |
https://en.wikipedia.org/wiki/Flow%20rate | Flow rate may refer to:
Flow measurement, a quantification of bulk fluid movement
Mass flow rate (ṁ or μ), the mass of a substance which passes per unit of time
Volumetric flow rate ( or ), the volume of fluid which passes per unit time
Discharge (hydrology) (), volume rate of water flow that is transported throug... |
https://en.wikipedia.org/wiki/Md5sum | is a computer program that calculates and verifies 128-bit MD5 hashes, as described in RFC 1321. The MD5 hash functions as a compact digital fingerprint of a file. As with all such hashing algorithms, there is theoretically an unlimited number of files that will have any given MD5 hash. However, it is very unlikely tha... |
https://en.wikipedia.org/wiki/Sampling%20theory | sampling theory may mean:
Nyquist–Shannon sampling theorem, digital signal processing (DSP)
Statistical sampling
Fourier sampling |
https://en.wikipedia.org/wiki/Applied%20Materials | Applied Materials, Inc. is an American corporation that supplies equipment, services and software for the manufacture of semiconductor (integrated circuit) chips for electronics, flat panel displays for computers, smartphones, televisions, and solar products. Integral to the growth of Silicon Valley, the company also s... |
https://en.wikipedia.org/wiki/Correction%20tape | Correction tape is an alternative to correction fluid used to correct mistakes during typing, or, in some forms, handwriting. One side of the tape, which is placed against the area to cover, is coated in a white, opaque masking material. Pressure applied to the other side of the tape transfers this material to the pape... |
https://en.wikipedia.org/wiki/Correction%20fluid | A correction fluid is an opaque, usually white fluid applied to paper to mask errors in text. Once dried, it can be handwritten or typed upon. It is typically packaged in small bottles, with lids attached to brushes (or triangular pieces of foam) that dip into the fluid. The brush applies the fluid to the paper.
Befor... |
https://en.wikipedia.org/wiki/ESD | ESD may refer to:
Science
ESD (gene), a human gene/enzyme
Electrostatic discharge, a sudden flow of electricity between two electrically charged objects
Electrostatic-sensitive device, any component which can be damaged by common static charges
Energy spectral density, a part of a function in statistical signal p... |
https://en.wikipedia.org/wiki/CFD |
CFD may refer to:
Business and economics
Centre for Finance and Development
Contract for difference, a type of financial derivative
Control-flow diagram, of a process
Cumulative flow diagram, in queueing theory
Firefighting services
Calgary Fire Department, Alberta, Canada
Chicago Fire Department, Illinois, U... |
https://en.wikipedia.org/wiki/Algorithmic%20composition | Algorithmic composition is the technique of using algorithms to create music.
Algorithms (or, at the very least, formal sets of rules) have been used to compose music for centuries; the procedures used to plot voice-leading in Western counterpoint, for example, can often be reduced to algorithmic determinacy. The term... |
https://en.wikipedia.org/wiki/TPU | TPU or tpu may refer to:
Science and technology
Tensor Processing Unit, a custom ASIC built by Google, tailored for their TensorFlow platform
DEC Text Processing Utility, a language developed by Digital Equipment Corporation for developing text editors
Thermoplastic polyurethane, a class of polyurethane plastics
O... |
https://en.wikipedia.org/wiki/Deduction%20theorem | In mathematical logic, a deduction theorem is a metatheorem that justifies doing conditional proofs from a hypothesis in systems that do not explicitly axiomatize that hypothesis, i.e. to prove an implication A → B, it is sufficient to assume A as a hypothesis and then proceed to derive B. Deduction theorems exist for ... |
https://en.wikipedia.org/wiki/Index%20of%20wave%20articles | This is a list of wave topics.
0–9
21 cm line
A
Abbe prism
Absorption spectroscopy
Absorption spectrum
Absorption wavemeter
Acoustic wave
Acoustic wave equation
Acoustics
Acousto-optic effect
Acousto-optic modulator
Acousto-optics
Airy disc
Airy wave theory
Alfvén wave
Alpha waves
Amphidromic point
Amplitude
Amplitud... |
https://en.wikipedia.org/wiki/Aspleniaceae | The Aspleniaceae (spleenworts) are a family of ferns, included in the order Polypodiales. The composition and classification of the family have been subject to considerable changes. In particular, there is a narrow circumscription, Aspleniaceae s.s. (adopted here), in which the family contains only two genera, and a ve... |
https://en.wikipedia.org/wiki/Absorbance | Absorbance is defined as "the logarithm of the ratio of incident to transmitted radiant power through a sample (excluding the effects on cell walls)". Alternatively, for samples which scatter light, absorbance may be defined as "the negative logarithm of one minus absorptance, as measured on a uniform sample". The term... |
https://en.wikipedia.org/wiki/Isosbestic%20point | In spectroscopy, an isosbestic point is a specific wavelength, wavenumber or frequency at which the total absorbance of a sample does not change during a chemical reaction or a physical change of the sample. The word derives from two Greek words: "iso", meaning "equal", and "sbestos", meaning "extinguishable".
Isosbes... |
https://en.wikipedia.org/wiki/Serotonin%20transporter | The serotonin transporter (SERT or 5-HTT) also known as the sodium-dependent serotonin transporter and solute carrier family 6 member 4 is a protein that in humans is encoded by the SLC6A4 gene. SERT is a type of monoamine transporter protein that transports the neurotransmitter serotonin from the synaptic cleft back t... |
https://en.wikipedia.org/wiki/Paillier%20cryptosystem | The Paillier cryptosystem, invented by and named after Pascal Paillier in 1999, is a probabilistic asymmetric algorithm for public key cryptography. The problem of computing n-th residue classes is believed to be computationally difficult. The decisional composite residuosity assumption is the intractability hypothesis... |
https://en.wikipedia.org/wiki/Nondisjunction | Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate properly during cell division (mitosis/meiosis). There are three forms of nondisjunction: failure of a pair of homologous chromosomes to separate in meiosis I, failure of sister chromatids to separate during meiosis II, and failure... |
https://en.wikipedia.org/wiki/Homotopy%20principle | In mathematics, the homotopy principle (or h-principle) is a very general way to solve partial differential equations (PDEs), and more generally partial differential relations (PDRs). The h-principle is good for underdetermined PDEs or PDRs, such as the immersion problem, isometric immersion problem, fluid dynamics, a... |
https://en.wikipedia.org/wiki/CDMA2000 | CDMA2000 (also known as C2K or IMT Multi‑Carrier (IMT‑MC)) is a family of 3G mobile technology standards for sending voice, data, and signaling data between mobile phones and cell sites. It is developed by 3GPP2 as a backwards-compatible successor to second-generation cdmaOne (IS-95) set of standards and used especiall... |
https://en.wikipedia.org/wiki/NTRUEncrypt | The NTRUEncrypt public key cryptosystem, also known as the NTRU encryption algorithm, is an NTRU lattice-based alternative to RSA and elliptic curve cryptography (ECC) and is based on the shortest vector problem in a lattice (which is not known to be breakable using quantum computers).
It relies on the presumed diffic... |
https://en.wikipedia.org/wiki/NTRU | NTRU is an open-source public-key cryptosystem that uses lattice-based cryptography to encrypt and decrypt data. It consists of two algorithms: NTRUEncrypt, which is used for encryption, and NTRUSign, which is used for digital signatures. Unlike other popular public-key cryptosystems, it is resistant to attacks using S... |
https://en.wikipedia.org/wiki/Timing%20attack | In cryptography, a timing attack is a side-channel attack in which the attacker attempts to compromise a cryptosystem by analyzing the time taken to execute cryptographic algorithms. Every logical operation in a computer takes time to execute, and the time can differ based on the input; with precise measurements of the... |
https://en.wikipedia.org/wiki/Somatostatin | Somatostatin, also known as growth hormone-inhibiting hormone (GHIH) or by several other names, is a peptide hormone that regulates the endocrine system and affects neurotransmission and cell proliferation via interaction with G protein-coupled somatostatin receptors and inhibition of the release of numerous secondary... |
https://en.wikipedia.org/wiki/Tuned%20radio%20frequency%20receiver | A tuned radio frequency receiver (or TRF receiver) is a type of radio receiver that is composed of one or more tuned radio frequency (RF) amplifier stages followed by a detector (demodulator) circuit to extract the audio signal and usually an audio frequency amplifier. This type of receiver was popular in the 1920s. Ea... |
https://en.wikipedia.org/wiki/555%20timer%20IC | The 555 timer IC is an integrated circuit (chip) used in a variety of timer, delay, pulse generation, and oscillator applications. Derivatives provide two (556) or four (558) timing circuits in one package. The design was first marketed in 1972 by Signetics and used bipolar junction transistors. Since then, numerous co... |
https://en.wikipedia.org/wiki/Gabapentin | Gabapentin, sold under the brand name Neurontin among others, is an anticonvulsant medication primarily used to treat partial seizures and neuropathic pain. It is commonly used medication for the treatment of neuropathic pain caused by diabetic neuropathy, postherpetic neuralgia, and central pain. It is moderately effe... |
https://en.wikipedia.org/wiki/Junkers%20Ju%20390 | The Junkers Ju 390 was a German long-range derivative of the Junkers Ju 290 aircraft, intended to be used as a heavy transport aircraft, maritime patrol aircraft and long-range bomber. It was one of the aircraft designs submitted for the abortive Amerikabomber project, along with the Messerschmitt Me 264, the Focke-Wul... |
https://en.wikipedia.org/wiki/Power-law%20fluid |
In continuum mechanics, a power-law fluid, or the Ostwald–de Waele relationship, is a type of generalized Newtonian fluid (time-independent non-Newtonian fluid) for which the shear stress, , is given by
where:
is the flow consistency index (SI units Pa sn),
is the shear rate or the velocity gradient perpendicular ... |
https://en.wikipedia.org/wiki/Bingham%20plastic | In materials science, a Bingham plastic is a viscoplastic material that behaves as a rigid body at low stresses but flows as a viscous fluid at high stress. It is named after Eugene C. Bingham who proposed its mathematical form.
It is used as a common mathematical model of mud flow in drilling engineering, and in the ... |
https://en.wikipedia.org/wiki/Frequency%20mixer | In electronics, a mixer, or frequency mixer, is an electrical circuit that creates new frequencies from two signals applied to it. In its most common application, two signals are applied to a mixer, and it produces new signals at the sum and difference of the original frequencies. Other frequency components may also b... |
https://en.wikipedia.org/wiki/Potassium%20permanganate | Potassium permanganate is an inorganic compound with the chemical formula KMnO4. It is a purplish-black crystalline salt, that dissolves in water as K+ and , an intensely pink to purple solution.
Potassium permanganate is widely used in the chemical industry and laboratories as a strong oxidizing agent, and also as a ... |
https://en.wikipedia.org/wiki/Anemia%20%28plant%29 | Anemia is a genus of ferns. It is the only genus in the family Anemiaceae in the Pteridophyte Phylogeny Group classification of 2016 (PPG I). Alternatively, the genus may be placed as the only genus in the subfamily Anemioideae of a more broadly defined family Schizaeaceae, the family placement used in Plants of the Wo... |
https://en.wikipedia.org/wiki/Transduction | Transduction (trans- + -duc- + -tion, "leading through or across") can refer to:
Signal transduction, any process by which a biological cell converts one kind of signal or stimulus into another
Olfactory transduction
Sugar signal transduction
Transduction (biophysics), the conveyance of energy from a donor electro... |
https://en.wikipedia.org/wiki/Lamina%20propria | The lamina propria is a thin layer of connective tissue that forms part of the moist linings known as mucous membranes or mucosae, which line various tubes in the body, such as the respiratory tract, the gastrointestinal tract, and the urogenital tract.
The lamina propria is a thin layer of loose (areolar) connective ... |
https://en.wikipedia.org/wiki/Takaoka%20District%2C%20K%C5%8Dchi | is a district located in Kōchi Prefecture, Japan.
As of the Shimanto merger but with 2003 population statistics, the district has an estimated population of 68,854 and a density of 45.1 persons per km2. The total area is 1,527.65 km2.
Towns and villages
Nakatosa
Ochi
Sakawa
Shimanto
Tsuno
Yusuhara
Hidaka
Geography
A... |
https://en.wikipedia.org/wiki/Hata%20District%2C%20K%C5%8Dchi | is a district located in Kōchi Prefecture, Japan.
As of the Shimanto merger but with 2003 population statistics, the district has an estimated population of 22,402 and a density of 59.4 persons per km2. The total area is 376.77 km2.
Towns and villages
Kuroshio
Ōtsuki
Mihara
Mergers
On April 10, 2005 the old city of ... |
https://en.wikipedia.org/wiki/Boquer%C3%B3n%20department | Boquerón () is a department in the western region of Paraguay. It is the country's largest department, with an area of , but, according to the statistics for 2021 by INE, its population is only 68,080, being the second least populated department. The department includes the Russian Mennonite colonies of Fernheim, Menno... |
https://en.wikipedia.org/wiki/Audio%20analysis | Audio analysis refers to the extraction of information and meaning from audio signals for analysis, classification, storage, retrieval, synthesis, etc. The observation mediums and interpretation methods vary, as audio analysis can refer to the human ear and how people interpret the audible sound source, or it could ref... |
https://en.wikipedia.org/wiki/Vito%20Volterra | Vito Volterra (, ; 3 May 1860 – 11 October 1940) was an Italian mathematician and physicist, known for his contributions to mathematical biology and integral equations, being one of the founders of functional analysis.
Biography
Born in Ancona, then part of the Papal States, into a very poor Jewish family: his father... |
https://en.wikipedia.org/wiki/K%C3%B6ppen%20climate%20classification | The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, with several later modifications by Köppen, notably in 1918 and 1936. Later, German climatologist Rudolf Geiger (1894–1981) introd... |
https://en.wikipedia.org/wiki/Zymogen | In biochemistry, a zymogen (), also called a proenzyme (), is an inactive precursor of an enzyme. A zymogen requires a biochemical change (such as a hydrolysis reaction revealing the active site, or changing the configuration to reveal the active site) for it to become an active enzyme. The biochemical change usually ... |
https://en.wikipedia.org/wiki/Spurious%20relationship | In statistics, a spurious relationship or spurious correlation is a mathematical relationship in which two or more events or variables are associated but not causally related, due to either coincidence or the presence of a certain third, unseen factor (referred to as a "common response variable", "confounding factor", ... |
https://en.wikipedia.org/wiki/Nominal%20group | Nominal group may refer to:
Nominal group, alias for nominal category in statistics
Nominal group (functional grammar)
Nominal group technique, group decision-making technique |
https://en.wikipedia.org/wiki/Egg | An egg is an organic vessel grown by an animal to carry a possibly fertilized egg cell (a zygote) and to incubate from it an embryo within the egg until the embryo has become an animal fetus that can survive on its own, at which point the animal hatches.
Most arthropods, vertebrates (excluding live-bearing mammals), a... |
https://en.wikipedia.org/wiki/Statistics%20New%20Zealand | Statistics New Zealand (), branded as Stats NZ, is the public service department of New Zealand charged with the collection of statistics related to the economy, population and society of New Zealand. To this end, Stats NZ produces censuses and surveys.
Organization
Statistics New Zealand employs people with a variety... |
https://en.wikipedia.org/wiki/Register%20allocation | In compiler optimization, register allocation is the process of assigning local automatic variables and expression results to a limited number of processor registers.
Register allocation can happen over a basic block (local register allocation), over a whole function/procedure (global register allocation), or across f... |
https://en.wikipedia.org/wiki/Hairy%20ball%20theorem | The hairy ball theorem of algebraic topology (sometimes called the hedgehog theorem in Europe) states that there is no nonvanishing continuous tangent vector field on even-dimensional n-spheres. For the ordinary sphere, or 2‑sphere, if f is a continuous function that assigns a vector in R3 to every point p on a sphere ... |
https://en.wikipedia.org/wiki/QMC | QMC may refer to:
Quaid e Azam Medical College, a medical college in Bahawalpur, Pakistan
Quantum Monte Carlo, a class of computer algorithms
Quartermaster Corporal, a type of appointment in the British Household Cavalry
Quasi-Monte Carlo method, an integration method in mathematics
Queen Margaret College, now Qu... |
https://en.wikipedia.org/wiki/Earnshaw%27s%20theorem | Earnshaw's theorem states that a collection of point charges cannot be maintained in a stable stationary equilibrium configuration solely by the electrostatic interaction of the charges. This was first proven by British mathematician Samuel Earnshaw in 1842.
It is usually cited in reference to magnetic fields, but was ... |
https://en.wikipedia.org/wiki/Commodity%20Futures%20Modernization%20Act%20of%202000 | The Commodity Futures Modernization Act of 2000 (CFMA) is United States federal legislation that ensured financial products known as over-the-counter (OTC) derivatives remained unregulated. It was signed into law on December 21, 2000 by President Bill Clinton. It clarified the law so most OTC derivative transactions be... |
https://en.wikipedia.org/wiki/Electrodeless%20plasma%20excitation | Electrodeless plasma excitation methods include helicon plasma sources, inductively coupled plasmas, and surface-wave-sustained discharges.
Electrodeless high-frequency discharges (HF) have two important advantages over plasmas using electrodes, like capacitively coupled plasmas that are of great interest for contempo... |
https://en.wikipedia.org/wiki/Pelageya%20Polubarinova-Kochina | Pelageya Yakovlevna Polubarinova-Kochina (; – 3 July 1999) was a Soviet and Russian applied mathematician, known for her work on fluid mechanics and hydrodynamics, particularly, the application of Fuchsian equations, as well in the history of mathematics. She was elected a corresponding member of the Academy of Scienc... |
https://en.wikipedia.org/wiki/Freescale%20Semiconductor | Freescale Semiconductor, Inc. was an American semiconductor manufacturer. It was created by the divestiture of the Semiconductor Products Sector of Motorola in 2004. Freescale focused their integrated circuit products on the automotive, embedded and communications markets. It was bought by a private investor group in ... |
https://en.wikipedia.org/wiki/Analytics | Analytics is the systematic computational analysis of data or statistics. It is used for the discovery, interpretation, and communication of meaningful patterns in data. It also entails applying data patterns toward effective decision-making. It can be valuable in areas rich with recorded information; analytics relies ... |
https://en.wikipedia.org/wiki/Synchronous%20motor | A synchronous electric motor is an AC electric motor in which, at steady state, the rotation of the shaft is synchronized with the frequency of the supply current; the rotation period is exactly equal to an integral number of AC cycles. Synchronous motors use electromagnets as the stator of the motor which create a mag... |
https://en.wikipedia.org/wiki/Information%20geometry | Information geometry is an interdisciplinary field that applies the techniques of differential geometry to study probability theory and statistics. It studies statistical manifolds, which are Riemannian manifolds whose points correspond to probability distributions.
Introduction
Historically, information geometry ... |
https://en.wikipedia.org/wiki/5-Bromouracil | 5-Bromouracil (5-BrU, 5BrUra, or br5Ura) is a brominated derivative of uracil that acts as an antimetabolite or base analog, substituting for thymine in DNA, and can induce DNA mutation in the same way as 2-aminopurine. It is used mainly as an experimental mutagen, but its deoxyriboside derivative (5-bromo-2-deoxy-urid... |
https://en.wikipedia.org/wiki/Crevasse%20rescue | Crevasse rescue is the process of retrieving a climber from a crevasse in a glacier. Because of the frequency with which climbers break through the snow over a crevasse and fall in, crevasse rescue technique is a standard part of climbing education.
The basic assumption of crevasse rescue is that two or more climbers ... |
https://en.wikipedia.org/wiki/Orange%20box | An orange box is a piece of hardware or software that generates caller ID frequency-shift keying (FSK) signals to spoof caller ID information on the target's caller ID terminal.
See also
Blue box
References
Caller ID
Phreaking boxes |
https://en.wikipedia.org/wiki/Directional%20derivative | A directional derivative is a concept in multivariable calculus that measures the rate at which a function changes in a particular direction at a given point.
The directional derivative of a multivariable differentiable (scalar) function along a given vector v at a given point x intuitively represents the instantaneou... |
https://en.wikipedia.org/wiki/Long-term%20depression | In neurophysiology, long-term depression (LTD) is an activity-dependent reduction in the efficacy of neuronal synapses lasting hours or longer following a long patterned stimulus. LTD occurs in many areas of the CNS with varying mechanisms depending upon brain region and developmental progress.
As the opposing proces... |
https://en.wikipedia.org/wiki/Axiom%20%28computer%20algebra%20system%29 | Axiom is a free, general-purpose computer algebra system. It consists of an interpreter environment, a compiler and a library, which defines a strongly typed hierarchy.
History
Two computer algebra systems named Scratchpad were developed by IBM. The first one was started in 1965 by James Griesmer at the request of R... |
https://en.wikipedia.org/wiki/Pentagrid%20converter | The pentagrid converter is a type of radio receiving valve (vacuum tube) with five grids used as the frequency mixer stage of a superheterodyne radio receiver.
The pentagrid was part of a line of development of valves that were able to take an incoming RF signal and change its frequency to a fixed intermediate frequen... |
https://en.wikipedia.org/wiki/Joseph%20Bertrand | Joseph Louis François Bertrand (; 11 March 1822 – 5 April 1900) was a French mathematician who worked in the fields of number theory, differential geometry, probability theory, economics and thermodynamics.
Biography
Joseph Bertrand was the son of physician Alexandre Jacques François Bertrand and the brother of archa... |
https://en.wikipedia.org/wiki/Jacobson%20density%20theorem | In mathematics, more specifically non-commutative ring theory, modern algebra, and module theory, the Jacobson density theorem is a theorem concerning simple modules over a ring .
The theorem can be applied to show that any primitive ring can be viewed as a "dense" subring of the ring of linear transformations of a ve... |
https://en.wikipedia.org/wiki/Fisher%20information%20metric | In information geometry, the Fisher information metric is a particular Riemannian metric which can be defined on a smooth statistical manifold, i.e., a smooth manifold whose points are probability measures defined on a common probability space. It can be used to calculate the informational difference between measuremen... |
https://en.wikipedia.org/wiki/Eckmann%E2%80%93Hilton%20argument | In mathematics, the Eckmann–Hilton argument (or Eckmann–Hilton principle or Eckmann–Hilton theorem) is an argument about two unital magma structures on a set where one is a homomorphism for the other. Given this, the structures are the same, and the resulting magma is a commutative monoid. This can then be used to prov... |
https://en.wikipedia.org/wiki/Utility%20frequency | The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the nominal frequency of the oscillations of alternating current (AC) in a wide area synchronous grid transmitted from a power station to the end-user. In large parts of the world this is 50 Hz, although in the Amer... |
https://en.wikipedia.org/wiki/Harvey%20v.%20Horan | Harvey v. Horan, 278 F. 3d 370 (4th Cir. 2002), is a federal court case dealing with felons' rights of access to DNA testing. The Eastern Virginia District Court originally found that felons were entitled access to DNA testing on potentially exculpatory evidence, but this finding was later overturned by the Fourth Cir... |
https://en.wikipedia.org/wiki/JIS | JIS may refer to:
Standards
Japanese Industrial Standards
JIS screw drive
JIS semiconductor designation
JIS encoding
Shift JIS
Organisations
Japanese international school
Jabriya Indian School, Kuwait
Jakarta International School, Indonesia
Jamaica Information Service
Jeddah International School, Saudi Arab... |
https://en.wikipedia.org/wiki/Curvature%20form | In differential geometry, the curvature form describes curvature of a connection on a principal bundle. The Riemann curvature tensor in Riemannian geometry can be considered as a special case.
Definition
Let G be a Lie group with Lie algebra , and P → B be a principal G-bundle. Let ω be an Ehresmann connection on P ... |
https://en.wikipedia.org/wiki/Nd%3AYAG%20laser | Nd:YAG (neodymium-doped yttrium aluminum garnet; Nd:Y3Al5O12) is a crystal that is used as a lasing medium for solid-state lasers. The dopant, triply ionized neodymium, Nd(III), typically replaces a small fraction (1%) of the yttrium ions in the host crystal structure of the yttrium aluminum garnet (YAG), since the tw... |
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