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https://en.wikipedia.org/wiki/Rubin%20Braunstein | Rubin Braunstein (1922–2018) was an American physicist and educator. In 1955 he published the first measurements of light emission by semiconductor diodes made from crystals of gallium arsenide (GaAs), gallium antimonide (GaSb), and indium phosphide (InP). GaAs, GaSb, and InP are examples of III-V semiconductors. The I... |
https://en.wikipedia.org/wiki/List%20of%20phylogenetic%20tree%20visualization%20software | This list of phylogenetic tree viewing software is a compilation of software tools and web portals used in visualizing phylogenetic trees.
Online software
Desktop software
1 "All" refers to Microsoft Windows, Apple OSX and Linux; L=Linux, M=Apple Mac, W=Microsoft Windows
Libraries
See also
List of phylogenetic... |
https://en.wikipedia.org/wiki/List%20of%20Laplace%20transforms | The following is a list of Laplace transforms for many common functions of a single variable. The Laplace transform is an integral transform that takes a function of a positive real variable (often time) to a function of a complex variable (frequency).
Properties
The Laplace transform of a function can be obtained... |
https://en.wikipedia.org/wiki/Transition-edge%20sensor | A transition-edge sensor (TES) is a type of cryogenic energy sensor or cryogenic particle detector that exploits the strongly temperature-dependent resistance of the superconducting phase transition.
History
The first demonstrations of the superconducting transition's measurement potential appeared in the 1940s, 30 ye... |
https://en.wikipedia.org/wiki/Dactyliosolen | Dactyliosolen is a genus of diatoms belonging to the family Rhizosoleniaceae.
Species:
Dactyliosolen alternans
Dactyliosolen antarcticus
Dactyliosolen areolatus |
https://en.wikipedia.org/wiki/Telomerase | Telomerase, also called terminal transferase, is a ribonucleoprotein that adds a species-dependent telomere repeat sequence to the 3' end of telomeres. A telomere is a region of repetitive sequences at each end of the chromosomes of most eukaryotes. Telomeres protect the end of the chromosome from DNA damage or from fu... |
https://en.wikipedia.org/wiki/Erd%C5%91s%E2%80%93Tetali%20theorem | In additive number theory, an area of mathematics, the Erdős–Tetali theorem is an existence theorem concerning economical additive bases of every order. More specifically, it states that for every fixed integer , there exists a subset of the natural numbers satisfying
where denotes the number of ways that a natural ... |
https://en.wikipedia.org/wiki/Numbeo | Numbeo is a Serbian crowd-sourced online database of perceived consumer prices, real property prices, and quality of life metrics. The website was founded in April 2009 by former Google employee Mladen Adamović, to enable users to share and compare information about the cost of living between countries and cities. Sinc... |
https://en.wikipedia.org/wiki/CIMACT | CIMACT is EUROCONTROL's Civil-Military Air Traffic Management Co-ordination Tool.
Definition
CIMACT is a EUROCONTROL software, that is combining and merging civil and military data sources (mainly surveillance and flight plan data) into a correlated Air Situation Display (also known as Recognised Air Picture (RAP) to... |
https://en.wikipedia.org/wiki/Two-photon%20photovoltaic%20effect | Two-photon photovoltaic effect (TPP effect) is an energy collection method based on two-photon absorption (TPA). The TPP effect can be thought of as the nonlinear equivalent of the traditional photovoltaic effect involving high optical intensities. This effect occurs when two photons are absorbed at the same time resul... |
https://en.wikipedia.org/wiki/Cyclotomic%20field | In number theory, a cyclotomic field is a number field obtained by adjoining a complex root of unity to , the field of rational numbers.
Cyclotomic fields played a crucial role in the development of modern algebra and number theory because of their relation with Fermat's Last Theorem. It was in the process of his deep... |
https://en.wikipedia.org/wiki/Line%20search | In optimization, the line search strategy is one of two basic iterative approaches to find a local minimum of an objective function . The other approach is trust region.
The line search approach first finds a descent direction along which the objective function will be reduced and then computes a step size that dete... |
https://en.wikipedia.org/wiki/Expasy | Expasy is an online bioinformatics resource operated by the SIB Swiss Institute of Bioinformatics. It is an extensible and integrative portal which provides access to over 160 databases and software tools and supports a range of life science and clinical research areas, from genomics, proteomics and structural biology,... |
https://en.wikipedia.org/wiki/Anchor%20Stone%20Blocks | Anchor Stone Blocks () are components of stone construction sets made in Rudolstadt, Germany, marketed as a construction toy.
Description
Anchor Stone pieces are made of a mixture of quartz sand, chalk, and linseed oil (German Patent 13,770; US Patent 233,780), precisely pressed in molds so that they fit together per... |
https://en.wikipedia.org/wiki/Environmental%20sex%20determination | Environmental sex determination is the establishment of sex by a non-genetic cue, such as nutrient availability, experienced within a discrete period after fertilization. Environmental factors which often influence sex determination during development or sexual maturation include light intensity and photoperiod, temper... |
https://en.wikipedia.org/wiki/Purr | A purr is a tonal fluttering sound made by some species of felids, including both larger, outdoor cats and the domestic cat (Felis catus), as well as two species of genets. It varies in loudness and tone among species and in the same animal.
Although true purring is exclusive to felids and viverrids, other animals su... |
https://en.wikipedia.org/wiki/Invasion%20genetics | Invasion genetics is the area of study within biology that examines evolutionary processes in the context of biological invasions. Invasion genetics considers how genetic and demographic factors affect the success of a species introduced outside of its native range, and how the mechanisms of evolution, such as natural ... |
https://en.wikipedia.org/wiki/Prismatic%20surface | A prismatic surface is a surface generated by all the lines that are parallel to a given line and intersect a broken line that is not in the same plane as the given line. The broken line is the directrix of the surface; the parallel lines are its generators (or elements). If the broken line is closed (i.e., a closed po... |
https://en.wikipedia.org/wiki/Bochner%E2%80%93Riesz%20mean | The Bochner–Riesz mean is a summability method often used in harmonic analysis when considering convergence of Fourier series and Fourier integrals. It was introduced by Salomon Bochner as a modification of the Riesz mean.
Definition
Define
Let be a periodic function, thought of as being on the n-torus, , and having... |
https://en.wikipedia.org/wiki/Tauc%E2%80%93Lorentz%20model | The Tauc–Lorentz model is a mathematical formula for the frequency dependence of the complex-valued relative permittivity, sometimes referred to as the dielectric function. The model has been used to fit the complex refractive index of amorphous semiconductor materials at frequencies greater than their optical band gap... |
https://en.wikipedia.org/wiki/Don%20Hopkins | Don Hopkins is an artist and programmer specializing in human computer interaction and computer graphics. He is an alumnus of the University of Maryland and a former member of the University of Maryland Human–Computer Interaction Lab.
He inspired Richard Stallman, who described him as a "very imaginative fellow", to u... |
https://en.wikipedia.org/wiki/Australian%20Web%20Archive | The Australian Web Archive (AWA) is an publicly available online database of archived Australian websites, hosted by the National Library of Australia (NLA) on its Trove platform, an online library database aggregator. It comprises the NLA's own PANDORA archive, the Australian Government Web Archive (AGWA) and the Nati... |
https://en.wikipedia.org/wiki/Conservapedia | Conservapedia ( ) is an English-language, wiki-based, online encyclopedia written from a self-described American conservative and fundamentalist Christian point of view. The website was established in 2006 by American homeschool teacher and attorney Andrew Schlafly, son of the conservative activist Phyllis Schlafly, to... |
https://en.wikipedia.org/wiki/Babinet%E2%80%93Soleil%20compensator | The Babinet–Soleil compensator is a continuously variable, zero-order retarder. It consists of two birefringent wedges, one of which is movable, and another is fixed to a compensator plate. The orientation of the long axis of the wedges is perpendicular to the long axis of the compensator plate. |
https://en.wikipedia.org/wiki/Laryngotracheal%20groove | The laryngotracheal groove is a precursor for the larynx and trachea.
The rudiment of the respiratory organs appears as a median longitudinal groove in the ventral wall of the pharynx. The groove deepens, and its lips fuse to form a septum, which grows from below upward and converts the groove into a tube, the laryngo... |
https://en.wikipedia.org/wiki/Critical%20Assessment%20of%20Function%20Annotation | The Critical Assessment of Functional Annotation (CAFA) is an experiment designed to provide a large-scale assessment of computational methods dedicated to predicting protein function. Different algorithms are evaluated by their ability to predict the Gene Ontology (GO) terms in the categories of Molecular Function, Bi... |
https://en.wikipedia.org/wiki/Added%20value | Added value in financial analysis of shares is to be distinguished from value added. It is used as a measure of shareholder value, calculated using the formula:
Added Value = The selling price of a product - the cost of bought-in materials and components
Added Value can also be defined as the difference between a par... |
https://en.wikipedia.org/wiki/PhishTank | PhishTank is an anti-phishing site.
PhishTank was launched in October 2006 by entrepreneur David Ulevitch as an offshoot of OpenDNS. The company offers a community-based phish verification system where users submit suspected phishes and other users "vote" if it is a phish or not. OpenDNS was acquired by Cisco and in t... |
https://en.wikipedia.org/wiki/DNA%20Family%20Secrets | DNA Family Secrets is a British television series which began airing on BBC Two in March 2021. The programme is presented by Stacey Dooley and geneticist, Professor Turi King, and uses the latest DNA technology to solve family mysteries around ancestry, missing relatives and genetic disease. The second series began ai... |
https://en.wikipedia.org/wiki/Monokaryon | A monokaryon is a fungal mycelium or hypha in which each cell contains a single nucleus. It also refers to a mononuclear spore or cell of a fungus that produces a dikaryon in its life cycle.
See also
Dikaryon |
https://en.wikipedia.org/wiki/Shear%20thinning | In rheology, shear thinning is the non-Newtonian behavior of fluids whose viscosity decreases under shear strain. It is sometimes considered synonymous for pseudo-plastic behaviour, and is usually defined as excluding time-dependent effects, such as thixotropy.
Shear thinning is the most common type of non-Newtonian b... |
https://en.wikipedia.org/wiki/Genetic%20purging | Genetic purging is the reduction of the frequency of a deleterious allele, caused by an increased efficiency of natural selection prompted by inbreeding.
Purging occurs because many deleterious alleles only express all their harmful effects when homozygous, present in two copies. During inbreeding, as related individu... |
https://en.wikipedia.org/wiki/Protein%20Structure%20Initiative | The Protein Structure Initiative (PSI) was a USA based project that aimed at accelerating discovery in structural genomics and contribute to understanding biological function. Funded by the U.S. National Institute of General Medical Sciences (NIGMS) between 2000 and 2015, its aim was to reduce the cost and time require... |
https://en.wikipedia.org/wiki/Mobile%20genetic%20elements | Mobile genetic elements (MGEs) sometimes called selfish genetic elements are a type of genetic material that can move around within a genome, or that can be transferred from one species or replicon to another. MGEs are found in all organisms. In humans, approximately 50% of the genome is thought to be MGEs. MGEs play a... |
https://en.wikipedia.org/wiki/Compute%20Node%20Linux | Compute Node Linux (CNL) is a runtime environment based on the Linux kernel for the Cray XT3, Cray XT4, Cray XT5, Cray XT6, Cray XE6 and Cray XK6 supercomputer systems based on SUSE Linux Enterprise Server. CNL forms part of the Cray Linux Environment. systems running CNL were ranked 3rd, 6th and 8th among the fastest... |
https://en.wikipedia.org/wiki/Plastination | Plastination is a technique or process used in anatomy to preserve bodies or body parts, first developed by Gunther von Hagens in 1977. The water and fat are replaced by certain plastics, yielding specimens that can be touched, do not smell or decay, and even retain most properties of the original sample.
Process
Fou... |
https://en.wikipedia.org/wiki/Ultraviolet%20catastrophe | The ultraviolet catastrophe, also called the Rayleigh–Jeans catastrophe, was the prediction of late 19th century to early 20th century classical physics that an ideal black body at thermal equilibrium would emit an unbounded quantity of energy as wavelength decreased into the ultraviolet range. The term "ultraviolet ca... |
https://en.wikipedia.org/wiki/Perfect%20thermal%20contact | Perfect thermal contact of the surface of a solid with the environment (convective heat transfer) or another solid occurs when the temperatures of the mating surfaces are equal.
Perfect thermal contact conditions
Perfect thermal contact supposes that on the boundary surface there holds an equality of the temperatur... |
https://en.wikipedia.org/wiki/Logical%20schema | A logical data model or logical schema is a data model of a specific problem domain expressed independently of a particular database management product or storage technology (physical data model) but in terms of data structures such as relational tables and columns, object-oriented classes, or XML tags. This is as oppo... |
https://en.wikipedia.org/wiki/Neprilysin | Neprilysin (), also known as membrane metallo-endopeptidase (MME), neutral endopeptidase (NEP), cluster of differentiation 10 (CD10), and common acute lymphoblastic leukemia antigen (CALLA) is an enzyme that in humans is encoded by the MME gene. Neprilysin is a zinc-dependent metalloprotease that cleaves peptides at th... |
https://en.wikipedia.org/wiki/OpenCL | OpenCL (Open Computing Language) is a framework for writing programs that execute across heterogeneous platforms consisting of central processing units (CPUs), graphics processing units (GPUs), digital signal processors (DSPs), field-programmable gate arrays (FPGAs) and other processors or hardware accelerators. OpenCL... |
https://en.wikipedia.org/wiki/Page%20Size%20Extension | In computing, Page Size Extension (PSE) refers to a feature of x86 processors that allows for pages larger than the traditional 4 KiB size. It was introduced in the original Pentium processor, but it was only publicly documented by Intel with the release of the Pentium Pro. The CPUID instruction can be used to identify... |
https://en.wikipedia.org/wiki/Rational%20agent | A rational agent or rational being is a person or entity that always aims to perform optimal actions based on given premises and information. A rational agent can be anything that makes decisions, typically a person, firm, machine, or software.
The concept of rational agents can be found in various disciplines such as... |
https://en.wikipedia.org/wiki/Fannes%E2%80%93Audenaert%20inequality | The Fannes–Audenaert inequality is a mathematical bound on the difference between the von Neumann entropies of two density matrices as a function of their trace distance. It was proved by Koenraad M. R. Audenaert in 2007 as an optimal refinement of Mark Fannes' original inequality, which was published in 1973. Mark Fa... |
https://en.wikipedia.org/wiki/Cisco%20NX-OS | NX-OS is a network operating system for the Nexus-series Ethernet switches and MDS-series Fibre Channel storage area network switches made by Cisco Systems. It evolved from the Cisco operating system SAN-OS, originally developed for its MDS switches.
It is based on Wind River Linux and is inter-operable with other Ci... |
https://en.wikipedia.org/wiki/Kosmos%20%28publisher%29 | Franckh-Kosmos Verlags-GmbH & Co. is a media publishing house based in Stuttgart, Germany, founded in 1822 by Johann Friedrich Franckh. In the nineteenth century the company published the fairy tales of Wilhelm Hauff as well as works by Wilhelm Waiblinger and Eduard Mörike.
The "Friends of Nature Club" () was set up ... |
https://en.wikipedia.org/wiki/Equivalent%20latitude | In differential geometry, the equivalent latitude is a Lagrangian coordinate .
It is often used in atmospheric science,
particularly in the study of stratospheric dynamics.
Each isoline in a map of equivalent latitude follows the flow velocity and encloses the same area as the latitude line of equivalent value, hence "... |
https://en.wikipedia.org/wiki/Hamiltonian%20simulation | Hamiltonian simulation (also referred to as quantum simulation) is a problem in quantum information science that attempts to find the computational complexity and quantum algorithms needed for simulating quantum systems. Hamiltonian simulation is a problem that demands algorithms which implement the evolution of a quan... |
https://en.wikipedia.org/wiki/Global%20motion%20compensation | Global motion compensation (GMC) is a motion compensation technique used in video compression to reduce the bitrate required to encode video. It is most commonly used in MPEG-4 ASP, such as with the DivX and Xvid codecs.
Operation
Global motion compensation describes the motion in a scene based on a single affine tran... |
https://en.wikipedia.org/wiki/Virtual%20data%20room | A virtual data room (sometimes called a VDR or Deal Room) is an online repository of information that is used for the storing and distribution of documents. In many cases, a virtual data room is used to facilitate the due diligence process during an M&A transaction, loan syndication, or private equity and venture capi... |
https://en.wikipedia.org/wiki/Synthetic%20microbial%20consortia | Synthetic microbial consortia (commonly called co-cultures) are multi-population systems that can contain a diverse range of microbial species, and are adjustable to serve a variety of industrial, ecological, and tautological interests. For synthetic biology, consortia take the ability to engineer novel cell behaviors... |
https://en.wikipedia.org/wiki/Caryophyllene | Caryophyllene (), more formally (−)-β-caryophyllene, (BCP), is a natural bicyclic sesquiterpene that is a constituent of many essential oils, especially clove oil, the oil from the stems and flowers of Syzygium aromaticum (cloves), the essential oil of Cannabis sativa, copaiba, rosemary, and hops. It is usually found a... |
https://en.wikipedia.org/wiki/Davidon%E2%80%93Fletcher%E2%80%93Powell%20formula | The Davidon–Fletcher–Powell formula (or DFP; named after William C. Davidon, Roger Fletcher, and Michael J. D. Powell) finds the solution to the secant equation that is closest to the current estimate and satisfies the curvature condition. It was the first quasi-Newton method to generalize the secant method to a multid... |
https://en.wikipedia.org/wiki/WebAuthn | Web Authentication (WebAuthn) is a web standard published by the World Wide Web Consortium (W3C). WebAuthn is a core component of the FIDO2 Project under the guidance of the FIDO Alliance. The goal of the project is to standardize an interface for authenticating users to web-based applications and services using public... |
https://en.wikipedia.org/wiki/Good%20Natured | Good Natured is a book by primatologist Frans de Waal on animal behavior and the evolution of ethics.
Publishing history
The book was published in 1996 by Harvard University Press under the full title Good Natured: The Origins of Right and Wrong in Humans and Other Animals. Much of the book details observations of pr... |
https://en.wikipedia.org/wiki/Specific%20granule | Specific granules are secretory vesicles found exclusively in cells of the immune system called granulocytes.
It is sometimes described as applying specifically to neutrophils, and sometimes the term is applied to other types of cells.
These granules store a mixture of cytotoxic molecules, including many enzymes and ... |
https://en.wikipedia.org/wiki/Vertical%20roller%20mill | Vertical roller mill is a type of grinder used to grind materials into extremely fine powder for use in mineral dressing processes, paints, pyrotechnics, cements and ceramics. It is an energy efficient alternative for a ball mill.
Overview
The vertical roller mill is a kind of grinding machine for cement, raw materia... |
https://en.wikipedia.org/wiki/Coffee%20ring%20effect | In physics, a "coffee ring" is a pattern left by a puddle of particle-laden liquid after it evaporates. The phenomenon is named for the characteristic ring-like deposit along the perimeter of a spill of coffee. It is also commonly seen after spilling red wine. The mechanism behind the formation of these and similar rin... |
https://en.wikipedia.org/wiki/Edward%20Ginzton | Edward Leonard Ginzton (December 27, 1915 – August 13, 1998) was a Ukrainian-American engineer.
Education
Ginzton completed his B.S. (1936) and M.S. (1937) in Electrical Engineering at the University of California, Berkeley, and his Ph.D. in electrical engineering from Stanford University in 1941.
Career
As a student... |
https://en.wikipedia.org/wiki/Sprinter%20%28computer%29 | The Sprinter (also called Peters Plus Sprinter or PPS ) is a microcomputer made by the Russian firm Peters Plus, Ltd. It was the last ZX Spectrum clone produced in a factory.
It was built using what the company called a "Flex architecture", using an Altera PLD as part of the core logic. This allows the machine's har... |
https://en.wikipedia.org/wiki/S3%20Chrome | S3 Graphics' Chrome series of graphics accelerators arrived in 2004 with the DeltaChrome line of chips. They were supplied as discrete, mobile, or integrated graphics.
Overview
In 2004 after the S3 Graphics company spun off their joint-venture with VIA, VIA attempted to re-launch the S3 Graphics brand with a new line... |
https://en.wikipedia.org/wiki/Kaldenkirchen%20Sequoia%20Farm | The Kaldenkirchen Sequoia Farm () is a German arboretum that has been used as a biological institute for many years. Part of the protected area in the city of Nettetal, it is situated in the "Kaldenkirchen Grenzwald" (forest bordering Germany and the Netherlands). Nettetal lies in the Lower Rhine region of Germany.
Hi... |
https://en.wikipedia.org/wiki/Sammy%20Seminole | Sammy Seminole was the first mascot of the Florida State University Seminoles. He was introduced in 1958 and was retired in 1972 in an effort to find a less insensitive mascot.
History
Sammy Seminole debuted at the 1958 FSU Pow Wow homecoming event. For the first several years he was portrayed by white students from F... |
https://en.wikipedia.org/wiki/Glossary%20of%20botanical%20terms | This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Glossary of leaf morphology. For other related terms, see Glossary of phytopathology, Glo... |
https://en.wikipedia.org/wiki/After%20Man | After Man: A Zoology of the Future is a 1981 speculative evolution book written by Scottish geologist and palaeontologist Dougal Dixon and illustrated by several illustrators including Diz Wallis, John Butler, Brian McIntyre, Philip Hood, Roy Woodard and Gary Marsh. The book features a foreword by Desmond Morris. After... |
https://en.wikipedia.org/wiki/BBN%20Butterfly | The BBN Butterfly was a massively parallel computer built by Bolt, Beranek and Newman in the 1980s. It was named for the "butterfly" multi-stage switching network around which it was built. Each machine had up to 512 CPUs, each with local memory, which could be connected to allow every CPU access to every other CPU's... |
https://en.wikipedia.org/wiki/Diapause | In animal dormancy, diapause is the delay in development in response to regular and recurring periods of adverse environmental conditions. It is a physiological state with very specific initiating and inhibiting conditions. The mechanism is a means of surviving predictable, unfavorable environmental conditions, such as... |
https://en.wikipedia.org/wiki/Sodium%20bicarbonate%20rocket | A sodium bicarbonate rocket (sometimes called an Alka-Seltzer rocket) is a model rocket fashioned from a 35mm film canister and propelled by the pressure of a gas, often carbon dioxide, generated from the reaction of an acid with sodium bicarbonate. Sodium bicarbonate rockets are often used in science classes to demons... |
https://en.wikipedia.org/wiki/Order%20topology%20%28functional%20analysis%29 | In mathematics, specifically in order theory and functional analysis, the order topology of an ordered vector space is the finest locally convex topological vector space (TVS) topology on for which every order interval is bounded, where an order interval in is a set of the form where and belong to
The order to... |
https://en.wikipedia.org/wiki/Igusa%20variety | In mathematics, an Igusa curve is (roughly) a coarse moduli space of elliptic curves in characteristic p with a level p Igusa structure, where an Igusa structure on an elliptic curve E is roughly a point of order p of E(p) generating the kernel of V:E(p) → E. An Igusa variety is a higher-dimensional analogue of an Igu... |
https://en.wikipedia.org/wiki/Molecular%20weight%20cut-off | Molecular weight cut-off or MWCO refers to the lowest molecular weight solute (in daltons) in which 90% of the solute is retained by the membrane, or the molecular weight of the molecule (e.g. globular protein) that is 90% retained by the membrane.
This definition is not however standardized, and MWCOs can also be def... |
https://en.wikipedia.org/wiki/Alessandro%20Padoa | Alessandro Padoa (14 October 1868 – 25 November 1937) was an Italian mathematician and logician, a contributor to the school of Giuseppe Peano. He is remembered for a method for deciding whether, given some formal theory, a new primitive notion is truly independent of the other primitive notions. There is an analogous... |
https://en.wikipedia.org/wiki/International%20Moss%20Stock%20Center | The International Moss Stock Center (IMSC) is a biorepository which is specialized in collecting, preserving and distributing moss plants of a high value of scientific research. The IMSC is located at the Faculty of Biology, Department of Plant Biotechnology, at the Albert-Ludwigs-University of Freiburg, Germany.
Moss... |
https://en.wikipedia.org/wiki/Open%20Science%20Grid%20Consortium | The Open Science Grid Consortium is an organization that administers a worldwide grid of technological resources called the Open Science Grid, which facilitates distributed computing for scientific research. Founded in 2004, the consortium is composed of service and resource providers, researchers from universities an... |
https://en.wikipedia.org/wiki/British%20Lichen%20Society | The British Lichen Society (BLS) was founded in 1958 with the objective of promoting the study and conservation of lichen. Although the society was founded in London, UK, it is also of relevance to lichens worldwide. It has been a registered charity (number 228850) since 1964.
History
At the instigation of Dougal Swin... |
https://en.wikipedia.org/wiki/Subgraph%20isomorphism%20problem | In theoretical computer science, the subgraph isomorphism problem is a computational task in which two graphs G and H are given as input, and one must determine whether G contains a subgraph that is isomorphic to H.
Subgraph isomorphism is a generalization of both the maximum clique problem and the problem of testing w... |
https://en.wikipedia.org/wiki/Single-Chip%20Module | A single-chip module (SCM) is a chip package with only one die. Contrasts with multi-chip modules, where multiple dies are placed on a chip package.
See also
System in a package (SIP)
Hybrid integrated circuit
Chip carrier Chip packaging and package types list
Multi-chip module (MCM) |
https://en.wikipedia.org/wiki/Rips%20machine | In geometric group theory, the Rips machine is a method of studying the action of groups on R-trees. It was introduced in unpublished work of Eliyahu Rips in about 1991.
An R-tree is a uniquely arcwise-connected metric space in which every arc is isometric to some real interval. Rips proved the conjecture of Morgan ... |
https://en.wikipedia.org/wiki/Pavol%20Hell | Pavol Hell is a Canadian mathematician and computer scientist, born in Czechoslovakia. He is a professor of computing science at Simon Fraser University. Hell started his mathematical studies at Charles University in Prague, and moved to Canada in August 1968 after the Warsaw Pact invasion of Czechoslovakia. He obtaine... |
https://en.wikipedia.org/wiki/Firming%20agent | Firming agents are food additives added in order to precipitate residual pectin, thus strengthening the structure of the food and preventing its collapse during processing.
These are salts, typically lactates or phosphates, calcium salts or aluminum sulfates.
They are mainly used for (fresh) fruit and vegetables. For... |
https://en.wikipedia.org/wiki/Four%20fours | Four fours is a mathematical puzzle, the goal of which is to find the simplest mathematical expression for every whole number from 0 to some maximum, using only common mathematical symbols and the digit four. No other digit is allowed. Most versions of the puzzle require that each expression have exactly four fours, bu... |
https://en.wikipedia.org/wiki/Bondee | Bondee is a virtual avatar social networking app developed by Singapore-based tech firm, Metadream. It is a platform in which users can connect and interact with others by using a personalized figure-style avatar. Launched in January 2023, the app quickly gained popularity in Asia and topped app store charts in several... |
https://en.wikipedia.org/wiki/Gauss%27s%20lemma%20%28number%20theory%29 | Gauss's lemma in number theory gives a condition for an integer to be a quadratic residue. Although it is not useful computationally, it has theoretical significance, being involved in some proofs of quadratic reciprocity.
It made its first appearance in Carl Friedrich Gauss's third proof (1808) of quadratic reciproci... |
https://en.wikipedia.org/wiki/Impact%20of%20alcohol%20on%20aging | The impact of alcohol on aging is multifaceted. Evidence shows that alcoholism or chronic alcohol consumption can cause both accelerated (or premature) aging – in which symptoms of aging appear earlier than normal – and exaggerated aging, in which the symptoms appear at the appropriate time but in a more exaggerated fo... |
https://en.wikipedia.org/wiki/Variable%20star | A variable star is a star whose brightness as seen from Earth (its apparent magnitude) changes with time. This variation may be caused by a change in emitted light or by something partly blocking the light, so variable stars are classified as either:
Intrinsic variables, whose luminosity actually changes; for example,... |
https://en.wikipedia.org/wiki/Necessity%20and%20sufficiency | In logic and mathematics, necessity and sufficiency are terms used to describe a conditional or implicational relationship between two statements. For example, in the conditional statement: "If then ", is necessary for , because the truth of is guaranteed by the truth of . (Equivalently, it is impossible to have wi... |
https://en.wikipedia.org/wiki/Multiclet | MultiClet is an ongoing innovation project for a microprocessor that became the first post von Neumann, multicellular microprocessor, breaking the paradigm for computing technology that has been in place for more than 60 years. There have been attempts in the past to shift away from the von Neumann architecture. Under ... |
https://en.wikipedia.org/wiki/Aquilonifer | Aquilonifer spinosus is an extinct species of arthropod from the Silurian period. It is known from a single fossil specimen found in the Wenlock Series Lagerstätte of Herefordshire, England, in rocks about 430 million years old. The 1 cm long specimen is a stem-group mandibulate, not directly related to any living spec... |
https://en.wikipedia.org/wiki/Spectrum%20commons%20theory | The Spectrum Commons theory states that the telecommunication radio spectrum should be directly managed by its users rather than regulated by governmental or private institutions. Spectrum management is the process of regulating the use of radio frequencies to promote efficient use and gain a net social benefit. The th... |
https://en.wikipedia.org/wiki/Relativistic%20Doppler%20effect | The relativistic Doppler effect is the change in frequency, wavelength and amplitude of light, caused by the relative motion of the source and the observer (as in the classical Doppler effect), when taking into account effects described by the special theory of relativity.
The relativistic Doppler effect is different... |
https://en.wikipedia.org/wiki/Mammal%20Society%20of%20Japan | The is a Japanese society established in 1987 to promote the study of mammals.
History
Upon its establishment, the Society united two predecessor organizations, the , founded in 1949, and the , established in 1963, which itself grew out of the , established in 1955. The Society, however, traces its origins back to th... |
https://en.wikipedia.org/wiki/Railway%20of%20the%20Prince%20Imperial | The railway of the Prince Imperial () was the first documented model railway in the world.
Location
The model railway was built in 1859 for Napoléon, Prince Imperial, the 3-year-old son of emperor Napoleon III, in the private park of the Château de Saint-Cloud, between the Bassin des Trois Bouillons and the Bassin de... |
https://en.wikipedia.org/wiki/East | East is one of the four cardinal directions or points of the compass. It is the opposite direction from west and is the direction from which the Sun rises on the Earth.
Etymology
As in other languages, the word is formed from the fact that east is the direction where the Sun rises: east comes from Middle English est, ... |
https://en.wikipedia.org/wiki/Anthocyanone%20A | Anthocyanone A is a degradation product of malvidin 3-O-glucoside under acidic conditions. It is found in wine. |
https://en.wikipedia.org/wiki/Luigi%20Galvani | Luigi Galvani (, also ; ; ; 9 September 1737 – 4 December 1798) was an Italian physician, physicist, biologist and philosopher, who studied animal electricity. In 1780, he discovered that the muscles of dead frogs' legs twitched when struck by an electrical spark. This was an early study of bioelectricity, following ex... |
https://en.wikipedia.org/wiki/Mass%20provisioning | Mass provisioning is a form of parental investment in which an adult insect, most commonly a hymenopteran such as a bee or wasp, stocks all the food for each of her offspring in a small chamber (a "cell") before she lays the egg. This behavior is common in both solitary and eusocial bees, though essentially absent in ... |
https://en.wikipedia.org/wiki/John%20West%20Foods | John West Foods is a United Kingdom-based seafood marketing company established in 1857, and currently owned by Thai Union Group of Thailand. The company produces canned salmon and tuna, as well as mackerel, sardine, herring, brisling, anchovies and shellfish.
History
The original company was founded by T. L. Pelling ... |
https://en.wikipedia.org/wiki/Nurse%20grafting | Nurse grafting is a method of plant propagation that is used for hard-to-root plant material. If a desirable selection cannot be grown from seed (because a seed-grown plant will be genetically different from the parent), it must be propagated asexually (cloned) in order to be genetically identical to the parent. Nurse ... |
https://en.wikipedia.org/wiki/Thyine%20wood | Thyine wood is a 15th-century English name for a wood from the tree known botanically as Tetraclinis articulata (syn. Callitris quadrivalvis, Thuja articulata). The name is derived from the Greek word thuon, "fragrant wood," or possibly thuein, “to sacrifice”, and it was so called because it was burnt in sacrifices, on... |
https://en.wikipedia.org/wiki/Pitaya | A pitaya () or pitahaya () is the fruit of several different cactus species indigenous to the region of southern Mexico and along the Pacific coasts of Guatemala, Costa Rica, and El Salvador. Pitaya is cultivated in East Asia, South Asia, Southeast Asia, the United States, the Caribbean, Australia, and throughout tropi... |
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