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https://en.wikipedia.org/wiki/Segal%20space | In mathematics, a Segal space is a simplicial space satisfying some pullback conditions, making it look like a homotopical version of a category. More precisely, a simplicial set, considered as a simplicial discrete space, satisfies the Segal conditions iff it is the nerve of a category. The condition for Segal spaces ... |
https://en.wikipedia.org/wiki/Rothberger%20space | In mathematics, a Rothberger space is a topological space that satisfies a certain a basic selection principle. A Rothberger space is a space in which for every sequence of open covers of the space there are sets such that the family covers the space.
History
In 1938, Fritz Rothberger introduced his property known... |
https://en.wikipedia.org/wiki/Benedita%20Barata%20da%20Rocha | Benedita Barata da Rocha (24 February 1949 – 2 October 2021) was a Portuguese immunologist.
She earned her M.D. 1972 from the University of Lisbon, and her Ph.D. 1978 from the University of Glasgow, Scotland, UK. She was "directeur de recherche classe exceptionel" (DRCE) of the CNRS and director of a research unit o... |
https://en.wikipedia.org/wiki/J-integral | The J-integral represents a way to calculate the strain energy release rate, or work (energy) per unit fracture surface area, in a material. The theoretical concept of J-integral was developed in 1967 by G. P. Cherepanov and independently in 1968 by James R. Rice, who showed that an energetic contour path integral (cal... |
https://en.wikipedia.org/wiki/Tennis%20racket%20theorem | The tennis racket theorem or intermediate axis theorem is a result in classical mechanics describing the movement of a rigid body with three distinct principal moments of inertia. It is also dubbed the Dzhanibekov effect, after Soviet cosmonaut Vladimir Dzhanibekov who noticed one of the theorem's logical consequences ... |
https://en.wikipedia.org/wiki/Avalanche%20%28P2P%29 | Avalanche is the name of a proposed peer-to-peer (P2P) network created by Pablo Rodriguez and Christos Gkantsidis at Microsoft, which claims to offer improved scalability and bandwidth efficiency compared to existing P2P systems.
The proposed system works in a similar way to BitTorrent, but aims to improve some of its... |
https://en.wikipedia.org/wiki/ISO%2011992 | ISO 11992 is a CAN based vehicle bus standard by the heavy duty truck industry. It is used for communication between the tractor and one or more trailers. Its full title is "Road vehicles -- Interchange of digital information on electrical connections between towing and towed vehicles".
The protocol structure is simil... |
https://en.wikipedia.org/wiki/Penet%20remailer | The Penet remailer () was a pseudonymous remailer operated by Johan "Julf" Helsingius of Finland from 1993 to 1996. Its initial creation stemmed from an argument in a Finnish newsgroup over whether people should be required to tie their real name to their online communications. Julf believed that people should not—inde... |
https://en.wikipedia.org/wiki/Lake%20ball | A lake ball (also known as a surf ball, beach ball or spill ball) is a ball of debris found on ocean beaches and lakes large enough to have wave action. The rolling motion of the waves gathers debris in the water and eventually will form the materials into a ball. The materials vary from year to year and from locatio... |
https://en.wikipedia.org/wiki/Ethopabate | Ethopabate is a coccidiostat used in poultry. |
https://en.wikipedia.org/wiki/Polymyositis | Polymyositis (PM) is a type of chronic inflammation of the muscles (inflammatory myopathy) related to dermatomyositis and inclusion body myositis. Its name means 'inflammation of many muscles' (poly- + myos- + -itis). The inflammation of polymyositis is mainly found in the endomysial layer of skeletal muscle, whereas d... |
https://en.wikipedia.org/wiki/System%20U | In mathematical logic, System U and System U− are pure type systems, i.e. special forms of a typed lambda calculus with an arbitrary number of sorts, axioms and rules (or dependencies between the sorts). They were both proved inconsistent by Jean-Yves Girard in 1972. This result led to the realization that Martin-Löf's... |
https://en.wikipedia.org/wiki/Thunder%20Blade | is a third-person shoot 'em up video game released by Sega for arcades in 1987. Players control a helicopter to destroy enemy vehicles. The game was released as a standard stand-up arcade cabinet with force feedback, as the joystick vibrates. A helicopter shaped sit-down model was released, replacing the force feedback... |
https://en.wikipedia.org/wiki/LwIP | lwIP (lightweight IP) is a widely used open-source TCP/IP stack designed for embedded systems. lwIP was originally developed by Adam Dunkels at the Swedish Institute of Computer Science and is now developed and maintained by a worldwide network of developers.
lwIP is used by many manufacturers of embedded systems, inc... |
https://en.wikipedia.org/wiki/Infraglenoid%20tubercle | The infraglenoid tubercle is the part of the scapula from which the long head of the triceps brachii muscle originates. The infraglenoid tubercle is a tubercle located on the lateral part of the scapula, inferior to (below) the glenoid cavity. The name infraglenoid tubercle refers to its location below the glenoid cavi... |
https://en.wikipedia.org/wiki/PowerPC%20600 | The PowerPC 600 family was the first family of PowerPC processors built. They were designed at the Somerset facility in Austin, Texas, jointly funded and staffed by engineers from IBM and Motorola as a part of the AIM alliance. Somerset was opened in 1992 and its goal was to make the first PowerPC processor and then ke... |
https://en.wikipedia.org/wiki/Polygraphia%20Nova | Polygraphia nova et universalis ex combinatoria arte directa is a 1663 work by the Jesuit scholar Athanasius Kircher. It was one of Kircher's most highly regarded works and his only complete work on the subject of cryptography, although he made passing references to the topic elsewhere. The book was distributed as a pr... |
https://en.wikipedia.org/wiki/CAST-31 | CAST-31, Technical Clarifications Identified for RTCA DO-254 / EUROCAE ED-80 is a Certification Authorities Software Team (CAST) Position Paper. It is an FAA publication that "does not constitute official policy or guidance from any of the authorities", but is provided for educational and informational purposes only fo... |
https://en.wikipedia.org/wiki/Data%20diffusion%20machine | Data diffusion machine is a historical virtual shared memory architecture where data is free to migrate through the machine.
Shared memory machines are convenient for programming but do not scale beyond tens of processors. The Data Diffusion Machine (DDM) overcomes this problem by providing a virtual memory abstractio... |
https://en.wikipedia.org/wiki/Concepci%C3%B3n%20Bona | Concepción Bona Hernández, Mother Founder (6 December 1824 - 2 July 1901) was a nursery school teacher and a campaigner for the independence of the Dominican Republic. Together with María Trinidad Sánchez, Isabel Sosa and María de Jesús Pina, she took part in designing the Dominican flag.
Biography
Concepción Bona wa... |
https://en.wikipedia.org/wiki/Time%20Sharing%20Operating%20System | Time Sharing Operating System, or TSOS, is a discontinued operating system for RCA mainframe computers of the Spectra 70 series. TSOS was originally designed in 1968 for the Spectra 70/46, a modified version of the 70/45. TSOS quickly evolved into the Virtual Memory Operating System (VMOS) by 1970. VMOS continued to b... |
https://en.wikipedia.org/wiki/22q13%20deletion%20syndrome | 22q13 deletion syndrome, also known as Phelan–McDermid syndrome (PMS), is a genetic disorder caused by deletions or rearrangements on the q terminal end (long arm) of chromosome 22. Any abnormal genetic variation in the q13 region that presents with significant manifestations (phenotype) typical of a terminal deletion ... |
https://en.wikipedia.org/wiki/The%20Malay%20Archipelago | The Malay Archipelago is a book by the British naturalist Alfred Russel Wallace which chronicles his scientific exploration, during the eight-year period 1854 to 1862, of the southern portion of the Malay Archipelago including Malaysia, Singapore, the islands of Indonesia, then known as the Dutch East Indies, and the i... |
https://en.wikipedia.org/wiki/Determinacy | Determinacy is a subfield of set theory, a branch of mathematics, that examines the conditions under which one or the other player of a game has a winning strategy, and the consequences of the existence of such strategies. Alternatively and similarly, "determinacy" is the property of a game whereby such a strategy exis... |
https://en.wikipedia.org/wiki/Peroxisomal%20targeting%20signal | In biochemical protein targeting, a peroxisomal targeting signal (PTS) is a region of the peroxisomal protein that receptors recognize and bind to. It is responsible for specifying that proteins containing this motif are localised to the peroxisome.
Overview
All peroxisomal proteins are synthesized in the cytoplasm a... |
https://en.wikipedia.org/wiki/Ord%27s%20thyroiditis | Ord's thyroiditis is a common form of thyroiditis, an autoimmune disease where the body's own antibodies fight the cells of the thyroid.
It is named after the physician, William Miller Ord, who first described it in 1877 and again in 1888. It is more common among women than men. It has historically been separated from... |
https://en.wikipedia.org/wiki/Vortex%20Garden | The Vortex Garden is a privately owned public garden in the Hessian city of Darmstadt (Germany). It is a pantheistic permaculture garden at the art nouveau area of Mathildenhöhe and alludes to Viktor Schauberger’s discovery of “levitational force” through artistic depictions by internationally renowned sculptors includ... |
https://en.wikipedia.org/wiki/Combustibility%20and%20flammability | A combustible material is a material that can burn (i.e., sustain a flame) in air under certain conditions. A material is flammable if it ignites easily at ambient temperatures. In other words, a combustible material ignites with some effort and a flammable material catches fire immediately on exposure to flame.
The d... |
https://en.wikipedia.org/wiki/Sticky%20mouse | Sticky mouse is a murine possessing a gene mutation in the enzyme alanyl-tRNA synthetase (AARS). The sticky mouse, with this particular mutation, presents a good model in which to investigate mechanisms of neuronal degeneration. Its most immediately obvious symptom is a sticky secretion on the mouse's fur (thus the nam... |
https://en.wikipedia.org/wiki/Evaluative%20conditioning | Evaluative conditioning is defined as a change in the valence of a stimulus that is due to the pairing of that stimulus with another positive or negative stimulus. The first stimulus is often referred to as the conditioned stimulus and the second stimulus as the unconditioned stimulus. A conditioned stimulus becomes mo... |
https://en.wikipedia.org/wiki/Hilbert%20matrix | In linear algebra, a Hilbert matrix, introduced by , is a square matrix with entries being the unit fractions
For example, this is the 5 × 5 Hilbert matrix:
The entries can also be defined by the integral
that is, as a Gramian matrix for powers of x. It arises in the least squares approximation of arbitrar... |
https://en.wikipedia.org/wiki/Software%20construction | Software construction is a software engineering discipline. It is the detailed creation of working meaningful software through a combination of coding, verification, unit testing, integration testing, and debugging. It is linked to all the other software engineering disciplines, most strongly to software design and sof... |
https://en.wikipedia.org/wiki/Sherman%E2%80%93Takeda%20theorem | In mathematics, the Sherman–Takeda theorem states that if A is a C*-algebra then its double dual is a W*-algebra, and is isomorphic to the weak closure of A in the universal representation of A.
The theorem was announced by and proved by . The double dual of A is called the universal enveloping W*-algebra of A. |
https://en.wikipedia.org/wiki/List%20of%20ECMAScript%20engines | An ECMAScript engine is a program that executes source code written in a version of the ECMAScript language standard, for example, JavaScript.
Just-in-time compilation engines
These are new generation ECMAScript engines for web browsers, all implementing just-in-time compilation (JIT) or variations of that idea. The ... |
https://en.wikipedia.org/wiki/Biological%20photovoltaics | Biological photovoltaics, also called biophotovoltaics or BPV, is an energy-generating technology which uses oxygenic photoautotrophic organisms, or fractions thereof, to harvest light energy and produce electrical power. Biological photovoltaic devices are a type of biological electrochemical system, or microbial fue... |
https://en.wikipedia.org/wiki/Epoll | epoll is a Linux kernel system call for a scalable I/O event notification mechanism, first introduced in version 2.5.44 of the Linux kernel. Its function is to monitor multiple file descriptors to see whether I/O is possible on any of them. It is meant to replace the older POSIX select(2) and poll(2) system calls, to a... |
https://en.wikipedia.org/wiki/Lariat%20chain | A Lariat chain is a loop of chain that hangs off, and is spun by a wheel. It is often used as a science exhibit or a toy.
The original Lariat Chain was created in 1986 by Norman Tuck, as an Artist-in-Residence project at the Exploratorium in San Francisco.
Lariat Chain was developed from an earlier Tuck piece entit... |
https://en.wikipedia.org/wiki/Ocean%20Data%20Standards | The vast scale of the oceans, the difficulty and expense of making measurements due to the hostility of the environment and the internationality of the marine environment has led to a culture of data sharing in the oceanographic data community. As far back as 1961 UNESCO's Intergovernmental Oceanographic Commission (I... |
https://en.wikipedia.org/wiki/Chandrasekhar%20virial%20equations | In astrophysics, the Chandrasekhar virial equations are a hierarchy of moment equations of the Euler equations, developed by the Indian American astrophysicist Subrahmanyan Chandrasekhar, and the physicist Enrico Fermi and Norman R. Lebovitz.
Mathematical description
Consider a fluid mass of volume with density an... |
https://en.wikipedia.org/wiki/Internally%20grooved%20copper%20tube | Internally grooved copper tubes, also known as "microfin tubes", are a small diameter coil technology for modern air conditioning and refrigeration systems. Grooved coils facilitate more efficient heat transfer than smooth coils. Small diameter coils have better rates of heat transfer than conventionally-sized condense... |
https://en.wikipedia.org/wiki/Thomas%20Hunt%20Morgan%20Medal | The Thomas Hunt Morgan Medal is awarded by the Genetics Society of America (GSA) for lifetime contributions to the field of genetics.
The medal is named after Thomas Hunt Morgan, the 1933 Nobel Prize winner, who received this award for his work with Drosophila and his "discoveries concerning the role played by the chr... |
https://en.wikipedia.org/wiki/Sponge%20and%20dough | The sponge and dough method is a two-step bread making process: in the first step a sponge is made and allowed to ferment for a period of time, and in the second step the sponge is added to the final dough's ingredients, creating the total formula. In this usage, synonyms for sponge are yeast starter or yeast pre-ferme... |
https://en.wikipedia.org/wiki/Territorial%20matrix | The territorial matrix is the tissue surrounding chondrocytes (cells which produce cartilage) in cartilage. Chondrocytes are inactive cartilage cells, so they don't make cartilage components. The territorial matrix is basophilic (attracts basic compounds and dyes due to its anionic/acidic nature), because there is a hi... |
https://en.wikipedia.org/wiki/Hemimastigophora | Hemimastigophora is a group of single-celled eukaryotic organisms including the Spironemidae, first identified in 1988. Over the next 30 years, different authors proposed placing these organisms in various branches of the eukaryotes. In 2018 Lax et al. reported the first genetic information for Spironemidae, and sugges... |
https://en.wikipedia.org/wiki/Center%20of%20Astronomy%20%28Heidelberg%20University%29 | The Zentrum für Astronomie der Universität Heidelberg (Center for Astronomy of Heidelberg University) in Heidelberg, Germany, founded in 2005, is an association of three, formerly state-run research institutes: the Astronomisches Rechen-Institut, the Institut für Theoretische Astrophysik (Institute for Theoretical Astr... |
https://en.wikipedia.org/wiki/Single%20instruction%2C%20multiple%20data | Single instruction, multiple data (SIMD) is a type of parallel processing in Flynn's taxonomy. SIMD can be internal (part of the hardware design) and it can be directly accessible through an instruction set architecture (ISA), but it should not be confused with an ISA. SIMD describes computers with multiple processing ... |
https://en.wikipedia.org/wiki/Organisms%20at%20high%20altitude | Organisms can live at high altitude, either on land, in water, or while flying. Decreased oxygen availability and decreased temperature make life at such altitudes challenging, though many species have been successfully adapted via considerable physiological changes. As opposed to short-term acclimatisation (immediate... |
https://en.wikipedia.org/wiki/Supporting%20hyperplane | In geometry, a supporting hyperplane of a set in Euclidean space is a hyperplane that has both of the following two properties:
is entirely contained in one of the two closed half-spaces bounded by the hyperplane,
has at least one boundary-point on the hyperplane.
Here, a closed half-space is the half-space that ... |
https://en.wikipedia.org/wiki/ND812 | The 12-bit ND812, produced by Nuclear Data, Inc., was a commercial minicomputer developed for the scientific computing market.
Nuclear Data introduced it in 1970 at a price under $10,000 ().
Description
The architecture has a simple programmed I/O bus, plus a DMA channel.
The programmed I/O bus typically runs low to ... |
https://en.wikipedia.org/wiki/Heterogonesis | Heterogonesis describes the segregation of parental genomes into distinct cell lineages in the dividing zygote.
Fertilisation occurs when an ovum fuses with a sperm, forming a zygote. Normally, the genomes of the two parents assort into two diploid bi-parental daughter cells. In a heterogoneic cell division, the genom... |
https://en.wikipedia.org/wiki/Caenorhabditis%20sp.%208 | Caenorhabditis sp. 8 is an unnamed species of nematodes, in the same genus as the model organism Caenorhabditis elegans. It was collected from rotting tomatoes in New Jersey, USA, in July 2007.
This species groups near the C. angaria/C. castelli branch in the 'Drosophilae' supergroup in phylogenetic studies. |
https://en.wikipedia.org/wiki/Bezoar | A bezoar ( ) is a mass often found trapped in the gastrointestinal system, though it can occur in other locations. A pseudobezoar is an indigestible object introduced intentionally into the digestive system.
There are several varieties of bezoar, some of which have inorganic constituents and others organic. The term h... |
https://en.wikipedia.org/wiki/Ultracomputer | The New York University's Ultracomputer is a significant processor design in the history of parallel computing. The system has N processors, N memories, and an N log N message-passing switch connecting them. The system supported an innovative fetch-and-add process coordination instruction, and the custom VLSI network ... |
https://en.wikipedia.org/wiki/Amateur%20rocketry | Amateur rocketry, sometimes known as experimental rocketry or amateur experimental rocketry, is a hobby in which participants experiment with fuels and make their own rocket motors, launching a wide variety of types and sizes of rockets. Amateur rocketeers have been responsible for significant research into hybrid rock... |
https://en.wikipedia.org/wiki/Interband%20cascade%20laser | Interband cascade lasers (ICLs) are a type of laser diode that can produce coherent radiation over a large part of the mid-infrared region of the electromagnetic spectrum. They are fabricated from epitaxially-grown semiconductor heterostructures composed of layers of indium arsenide (InAs), gallium antimonide (GaSb), ... |
https://en.wikipedia.org/wiki/Triangular%20space | The triangular space (also known as the medial triangular space, upper triangular space, medial axillary space or foramen omotricipitale) is one of the three spaces found at the axillary space. The other two spaces are the quadrangular space and the triangular interval.
Boundaries
It has the following boundaries:
Inf... |
https://en.wikipedia.org/wiki/Demon%20algorithm | The demon algorithm is a Monte Carlo method for efficiently sampling members of a microcanonical ensemble with a given energy. An additional degree of freedom, called 'the demon', is added to the system and is able to store and provide energy. If a drawn microscopic state has lower energy than the original state, the e... |
https://en.wikipedia.org/wiki/Allergic%20salute | The allergic salute (sometimes called the nasal salute) is the characteristic and sometimes habitual gesture of wiping and/or rubbing the nose in an upwards or transverse manner with the fingers, palm, or back of the hand. It is termed a salute because the upward movement of the hand acts as an unintentional gesture. T... |
https://en.wikipedia.org/wiki/Eotragus | Eotragus is an extinct genus of early bovid. Species belonging to the genus inhabited Europe, Africa, and Asia during the Miocene some 20-18 million years ago. It is related to the modern nilgai and four-horned antelope. It was small and probably lived in woodland environments.
External links
Bovidae: Bovinae: Boselap... |
https://en.wikipedia.org/wiki/Why%E2%80%93because%20analysis | Why–because analysis (WBA) is a method for accident analysis. It is independent of application domain and has been used to analyse, among others, aviation-, railway-, marine-, and computer-related accidents and incidents. It is mainly used as an after-the-fact (or a posteriori) analysis method. WBA strives to ensure o... |
https://en.wikipedia.org/wiki/Tbf5%20protein%20domain | In molecular biology, this protein domain represents Tbf5 which stands for TTDA subunit of TFIIH basal transcription factor complex (also known as subunit 5 of RNA polymerase II transcription factor B), and Rex1 a type of nucleotide excision repair (NER) proteins. Nucleotide excision repair is a major pathway for rep... |
https://en.wikipedia.org/wiki/Genode | Genode is a free and open-source software operating system (OS) framework consisting of a microkernel abstraction layer and a set of user space components. The framework is notable as one of the few open-source operating systems not derived from a proprietary OS, such as Unix. The characteristic design philosophy is th... |
https://en.wikipedia.org/wiki/Composition%20%28combinatorics%29 | In mathematics, a composition of an integer n is a way of writing n as the sum of a sequence of (strictly) positive integers. Two sequences that differ in the order of their terms define different compositions of their sum, while they are considered to define the same partition of that number. Every integer has finitel... |
https://en.wikipedia.org/wiki/Polyfuse%20%28PROM%29 | A polyfuse is a one-time-programmable memory component used in semiconductor circuits for storing unique data like chip identification numbers or memory repair data, but more usually small to medium volume production of read only memory devices or microcontroller chips. They were also used as to permit programming of ... |
https://en.wikipedia.org/wiki/MAPK%20phosphatase | MAPK phosphatases (MKPs) are the largest class of phosphatases involved in down-regulating Mitogen-activated protein kinases (MAPK) signaling. MAPK signalling pathways regulate multiple features of development and homeostasis. This can involve gene regulation, cell proliferation, programmed cell death and stress respon... |
https://en.wikipedia.org/wiki/Emlen%20funnel | An Emlen funnel is a bird cage shaped like an inverted cone, used to study bird behaviour, in particular birds' migratory instincts. It is named after S T and J T Emlen who introduced the technique in 1966. An ink pad is placed on the bottom, so when the bird hops or flutters onto the sloping walls it leaves a track be... |
https://en.wikipedia.org/wiki/KDM8 | Lysine demethylase 8 is a protein that in humans is encoded by the KDM8 gene.
Function
This gene likely encodes a histone lysine demethylase. Studies of a similar protein in mouse indicate a potential role for this protein as a tumor suppressor. Alternatively spliced transcript variants have been described. |
https://en.wikipedia.org/wiki/Chimpanzee%20genome%20project | The Chimpanzee Genome Project was an effort to determine the DNA sequence of the chimpanzee genome. Sequencing began in 2005 and by 2013 twenty-four individual chimpanzees had been sequenced. This project was folded into the Great Ape Genome Project.
In 2013 high resolution sequences were published from each of the f... |
https://en.wikipedia.org/wiki/Cunningham%20Project | The Cunningham Project is a collaborative effort started in 1925 to factor numbers of the form bn ± 1 for b = 2, 3, 5, 6, 7, 10, 11, 12 and large n. The project is named after Allan Joseph Champneys Cunningham, who published the first version of the table together with Herbert J. Woodall. There are three printed versi... |
https://en.wikipedia.org/wiki/Cohen%E2%80%93Hewitt%20factorization%20theorem | In mathematics, the Cohen–Hewitt factorization theorem states that if is a left module over a Banach algebra with a left approximate unit , then an element of can be factorized as a product (for some and ) whenever . The theorem was introduced by and . |
https://en.wikipedia.org/wiki/Mirror%20nuclei | In physics, mirror nuclei are a pair of isobars of two different elements where the number of protons of isobar one (Z1) equals the number of neutrons of isobar two (N2) and the number of protons of isotope two (Z2) equals the number of neutrons in isotope one (N1); in short: Z1 = N2 and Z2 = N1. This implies that the ... |
https://en.wikipedia.org/wiki/Par%20Bricole | Par Bricole is a Swedish Bacchanalian order society for men only, founded in Stockholm on 15 May 1779 in Källaren Kejsarkronan at Drottninggatan 6. The main sources of inspiration were the Freemasons and Carl Michael Bellman's sayings about Bacchus.
The name Par Bricole comes from a French billiards term, meaning "wit... |
https://en.wikipedia.org/wiki/Dragon%20Slayer%20%28video%20game%29 | is an action role-playing game, developed by Nihon Falcom and designed by Yoshio Kiya.<ref name="retro_3"> Reprinted from {{citation|title=Retro Gamer|issue=67|year=2009}}</ref> It was originally released in 1984 for the PC-8801, PC-9801, X1 and FM-7, and became a major success in Japan. It was followed by an MSX port ... |
https://en.wikipedia.org/wiki/Medical%20volunteerism | Medical volunteerism, also medical volunteering, is volunteering in the context of providing medical treatment. While often seen in the context of volunteer physicians and nurses, the term can also cover the case of volunteers for clinical trials that are motivated by non-financial gains. Medical volunteering has in ge... |
https://en.wikipedia.org/wiki/Copulation%20%28zoology%29 | In zoology, copulation is animal sexual behavior in which a male introduces sperm into the female's body, especially directly into her reproductive tract. This is an aspect of mating. Many animals that live in water use external fertilization, whereas internal fertilization may have developed from a need to maintain ga... |
https://en.wikipedia.org/wiki/Ochrophyte | The ochrophytes are is a group of mostly photosynthetic stramenopiles (heterokonts), placed either in phylum Ochrophyta or subphylum Ochrophytina. Their plastid is of red algal origin.
The classification of the group is still being worked out. Originally, the ochrophytes were regarded as a phylum denominated Ochrophyt... |
https://en.wikipedia.org/wiki/National%20personification | A national personification is an anthropomorphic personification of a state or the people(s) it inhabits. It may appear in political cartoons and propaganda.
Some personifications in the Western world often took the Latin name of the ancient Roman province. Examples of this type include Britannia, Germania, Hibernia, ... |
https://en.wikipedia.org/wiki/Hall%27s%20marriage%20theorem | In mathematics, Hall's marriage theorem, proved by , is a theorem with two equivalent formulations. In each case, the theorem gives a necessary and sufficient condition for an object to exist:
The combinatorial formulation answers whether a finite collection of sets has a transversal—that is, whether an element can be... |
https://en.wikipedia.org/wiki/Jeff%20Rosenthal | Jeffrey Seth Rosenthal (born October 13, 1967) is a Canadian statistician and nonfiction author. He is a professor in the University of Toronto's department of statistics, cross-appointed with its department of mathematics.
Education and career
Rosenthal graduated from Woburn Collegiate Institute in 1984, received h... |
https://en.wikipedia.org/wiki/Field%20dominance | In video engineering, field dominance refers to the choice of which field of an interlaced video signal is chosen as the point at which video edits or switches occur.
There are two main choices for field dominance: odd or even. With odd field dominance the edit or switch occurs at the start of the odd field. With even... |
https://en.wikipedia.org/wiki/Predicted%20Aligned%20Error | The Predicted Aligned Error (PAE) is a quantitative output produced by AlphaFold, a protein structure prediction system developed by DeepMind. PAE estimates the expected positional error for each residue in a predicted protein structure if it were aligned to a corresponding residue in the true protein structure. This m... |
https://en.wikipedia.org/wiki/Machine%20epsilon | Machine epsilon or machine precision is an upper bound on the relative approximation error due to rounding in floating point arithmetic. This value characterizes computer arithmetic in the field of numerical analysis, and by extension in the subject of computational science. The quantity is also called macheps and it h... |
https://en.wikipedia.org/wiki/Superdense%20coding | In quantum information theory, superdense coding (also referred to as dense coding) is a quantum communication protocol to communicate a number of classical bits of information by only transmitting a smaller number of qubits, under the assumption of sender and receiver pre-sharing an entangled resource. In its simplest... |
https://en.wikipedia.org/wiki/Telepathology | Telepathology is the practice of pathology at a distance. It uses telecommunications technology to facilitate the transfer of image-rich pathology data between distant locations for the purposes of diagnosis, education, and research. Performance of telepathology requires that a pathologist selects the video images for... |
https://en.wikipedia.org/wiki/Android%20Cloud%20to%20Device%20Messaging | Android Cloud to Device Messaging (commonly referred to as Cloud to Device Messaging), or C2DM, is a defunct mobile notification service that was developed by Google and replaced by the Google Cloud Messaging service. It enabled developers to send data from servers to Android applications and Chrome extensions. C2DM or... |
https://en.wikipedia.org/wiki/Michelson%20Prize%20and%20Grants%20in%20Reproductive%20Biology | The Michelson Prize and Grants in Reproductive Biology Program is a $75 million (USD) initiative to create a safe and effective, single-dose, nonsurgical sterilant for male and female cats and dogs. It includes a $25 million (USD) prize for the first entity to develop a product that meets a series of criteria, which in... |
https://en.wikipedia.org/wiki/Acoustic%20contrast%20factor | In acoustics, the acoustic contrast factor is a number that describes the relationship between the densities and the sound velocities of two media, or equivalently (because of the form of the expression), the relationship between the densities and compressibilities of two media. It is most often used in the context of ... |
https://en.wikipedia.org/wiki/Gaia%20hypothesis | The Gaia hypothesis (), also known as the Gaia theory, Gaia paradigm, or the Gaia principle, proposes that living organisms interact with their inorganic surroundings on Earth to form a synergistic and self-regulating, complex system that helps to maintain and perpetuate the conditions for life on the planet.
The Gaia... |
https://en.wikipedia.org/wiki/Peters%27s%20elephantnose%20fish | Peters's elephant-nose fish (Gnathonemus petersii) is an African freshwater elephantfish in the genus Gnathonemus. Other names in English include elephantnose fish, long-nosed elephant fish, and Ubangi mormyrid, after the Ubangi River. The Latin name is probably for the German naturalist Wilhelm Peters. The fish uses ... |
https://en.wikipedia.org/wiki/Jack%20Ma%20Foundation | The Jack Ma Foundation (JMF) has been since 2014 the philanthropic arm of the Chinese activities of Jack Ma.
History
In September 2018, Ma announced that he would retire from the company he founded and the source of his wealth, internet merchandiser Alibaba, in order to pursue educational work, philanthropy, and envir... |
https://en.wikipedia.org/wiki/Herminiimonas%20glaciei | Herminiimonas glaciei is a species of ultramicrobacterium in the family Oxalobacteraceae. These small gram-negative cells have a variable number of long flagella at the ends and sides of their rod-shaped bodies. With dimensions of 0.5–0.9 by 0.3–0.4 µm, H. glaciei is roughly 10 to 50 times smaller than Escherichia coli... |
https://en.wikipedia.org/wiki/Normalized%20difference%20vegetation%20index | The normalized difference vegetation index (NDVI) is a widely-used metric for quantifying the health and density of vegetation using sensor data. It is calculated from spectrometric data at two specific bands: red and near-infrared. The spectrometric data is usually sourced from remote sensors, such as satellites.
The... |
https://en.wikipedia.org/wiki/Lehmer%27s%20conjecture | Lehmer's conjecture, also known as the Lehmer's Mahler measure problem, is a problem in number theory raised by Derrick Henry Lehmer. The conjecture asserts that there is an absolute constant such that every polynomial with integer coefficients satisfies one of the following properties:
The Mahler measure of is ... |
https://en.wikipedia.org/wiki/Congruent%20number | In number theory, a congruent number is a positive integer that is the area of a right triangle with three rational number sides. A more general definition includes all positive rational numbers with this property.
The sequence of (integer) congruent numbers starts with
5, 6, 7, 13, 14, 15, 20, 21, 22, 23, 24, 28, 2... |
https://en.wikipedia.org/wiki/Arrouya | Arrouya may refer to one of four wine grape varieties:
Arrouya noir
Cabernet Franc
Fer
Manseng noir |
https://en.wikipedia.org/wiki/Alzheimer%27s%20disease%20in%20African%20Americans | Alzheimer's disease (AD) in African Americans is becoming a rising topic of interest in AD care, support, and scientific research, as African Americans are disproportionately affected by AD. Recent research on AD has shown that there are clear disparities in the disease among racial groups, with higher prevalence and ... |
https://en.wikipedia.org/wiki/Species%20distribution%20modelling | Species distribution modelling (SDM), also known as environmental (or ecological) niche modelling (ENM), habitat modelling, predictive habitat distribution modelling, and range mapping uses computer algorithms to predict the distribution of a species across geographic space and time using environmental data. The enviro... |
https://en.wikipedia.org/wiki/STATPHYS | STATPHYS or IUPAP International Conference on Statistical Physics is a series of conferences organized by the International Union of Pure and Applied Physics. The conferences take place every three years in a different continent to give the maximum international relevance and visibility to the event. It is the world e... |
https://en.wikipedia.org/wiki/Michael%20Segal | Michael Segal (Hebrew: מיכאל סגל; Russian: Михаил Сегал, born 1972 in Kishinev, USSR) is a professor of Communication Systems Engineering at Ben-Gurion University of the Negev, known for his work in ad-hoc and sensor networks.
After completing his undergraduate studies at Ben-Gurion University in 1994, Segal received ... |
https://en.wikipedia.org/wiki/Alexander%20Beilinson | Alexander A. Beilinson (born 1957) is the David and Mary Winton Green University professor at the University of Chicago and works on mathematics. His research has spanned representation theory, algebraic geometry and mathematical physics. In 1999, Beilinson was awarded the Ostrowski Prize with Helmut Hofer.
In 2017... |
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