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https://en.wikipedia.org/wiki/Describing%20function | In control systems theory, the describing function (DF) method, developed by Nikolay Mitrofanovich Krylov and Nikolay Bogoliubov in the 1930s, and extended by Ralph Kochenburger is an approximate procedure for analyzing certain nonlinear control problems. It is based on quasi-linearization, which is the approximatio... |
https://en.wikipedia.org/wiki/Acidovorax%20aerodenitrificans | Acidovorax aerodenitrificans is a bacterium from the genus of Acidovorax and the family of Comamonadaceae. |
https://en.wikipedia.org/wiki/Dyson%20conjecture | In mathematics, the Dyson conjecture is a conjecture about the constant term of certain Laurent polynomials, proved independently in 1962 by Wilson and Gunson. Andrews generalized it to the q-Dyson conjecture, proved by Zeilberger and Bressoud and sometimes called the Zeilberger–Bressoud theorem. Macdonald generalized... |
https://en.wikipedia.org/wiki/John%20F.%20Allen%20%28physicist%29 | John Frank Allen, FRS FRSE (May 5, 1908 – April 22, 2001) was a Canadian-born physicist. At the same time as Pyotr Leonidovich Kapitsa in Moscow, Don Misener and Allen independently discovered the superfluid phase of matter in 1937 using liquid helium in the Royal Society Mond Laboratory in Cambridge, England.
Life
Al... |
https://en.wikipedia.org/wiki/Groupoid%20object | In category theory, a branch of mathematics, a groupoid object is both a generalization of a groupoid which is built on richer structures than sets, and a generalization of a group objects when the multiplication is only partially defined.
Definition
A groupoid object in a category C admitting finite fiber products c... |
https://en.wikipedia.org/wiki/Edman%20degradation | Edman degradation, developed by Pehr Edman, is a method of sequencing amino acids in a peptide. In this method, the amino-terminal residue is labeled and cleaved from the peptide without disrupting the peptide bonds between other amino acid residues.
Mechanism
Phenyl isothiocyanate is reacted with an uncharged N-ter... |
https://en.wikipedia.org/wiki/Effective%20evolutionary%20time | The hypothesis of effective evolutionary time attempts to explain gradients, in particular latitudinal gradients, in species diversity. It was originally named "time hypothesis".
Background
Low (warm) latitudes contain significantly more species than high (cold) latitudes. This has been shown for many animal and plan... |
https://en.wikipedia.org/wiki/Playskool | Playskool is an American brand of educational toys and games for children. The former Playskool manufacturing company was a subsidiary of the Milton Bradley Company and was headquartered in Pawtucket, Rhode Island. Playskool's last remaining plant in Chicago was shut down in 1984, and Playskool became a brand of Hasbro... |
https://en.wikipedia.org/wiki/Quantum%20algorithm | In quantum computing, a quantum algorithm is an algorithm which runs on a realistic model of quantum computation, the most commonly used model being the quantum circuit model of computation. A classical (or non-quantum) algorithm is a finite sequence of instructions, or a step-by-step procedure for solving a problem, w... |
https://en.wikipedia.org/wiki/Zebra%20%28medicine%29 | Zebra is the American medical slang for arriving at a surprising, often exotic, medical diagnosis when a more commonplace explanation is more likely. It is shorthand for the aphorism coined in the late 1940s by Theodore Woodward, professor at the University of Maryland School of Medicine, who instructed his medical in... |
https://en.wikipedia.org/wiki/TB11Cs4H3%20snoRNA | TB11Cs4H3 is a member of the H/ACA-like class of non-coding RNA (ncRNA) molecule that guide the sites of modification of uridines to pseudouridines of substrate RNAs. It is known as a small nucleolar RNA (snoRNA) thus named because of its cellular localization in the nucleolus of the eukaryotic cell. TB11Cs4H3 is pred... |
https://en.wikipedia.org/wiki/Polynomial-time%20counting%20reduction | In the computational complexity theory of counting problems, a polynomial-time counting reduction is a type of reduction (a transformation from one problem to another) used to define the notion of completeness for the complexity class ♯P. These reductions may also be called polynomial many-one counting reductions or we... |
https://en.wikipedia.org/wiki/Congruence%20%28general%20relativity%29 | In general relativity, a congruence (more properly, a congruence of curves) is the set of integral curves of a (nowhere vanishing) vector field in a four-dimensional Lorentzian manifold which is interpreted physically as a model of spacetime. Often this manifold will be taken to be an exact or approximate solution to ... |
https://en.wikipedia.org/wiki/N-glycosyltransferase | N-glycosyltransferase is an enzyme in prokaryotes which transfers individual hexoses onto asparagine sidechains in substrate proteins, using a nucleotide-bound intermediary, within the cytoplasm. They are distinct from regular N-glycosylating enzymes, which are oligosaccharyltransferases that transfer pre-assembled oli... |
https://en.wikipedia.org/wiki/List%20of%20exponential%20topics | This is a list of exponential topics, by Wikipedia page. See also list of logarithm topics.
Accelerating change
Approximating natural exponents (log base e)
Artin–Hasse exponential
Bacterial growth
Baker–Campbell–Hausdorff formula
Cell growth
Barometric formula
Beer–Lambert law
Characterizations of t... |
https://en.wikipedia.org/wiki/Center%20for%20Demographic%20Genetics%20of%20Academy%20of%20Sciences%20and%20Arts%20of%20Bosnia%20and%20Herzegovina | The Center for Demographic Genetics of the Academy of Sciences and Arts of Bosnia and Herzegovina (abbreviated CDG-ANUBiH), was established on July 15, 2020 at the formal proposal of the Department of Natural and Mathematical Sciences, which was represented by a wider circle of interested institutions and individuals i... |
https://en.wikipedia.org/wiki/Hayflick%20limit | The Hayflick limit, or Hayflick phenomenon, is the number of times a normal somatic, differentiated human cell population will divide before cell division stops. However, this limit does not apply to stem cells.
The concept of the Hayflick limit was advanced by American anatomist Leonard Hayflick in 1961, at the Wist... |
https://en.wikipedia.org/wiki/KIF5C | Kinesin heavy chain isoform 5C is a protein that in humans is encoded by the KIF5C gene. It is part of the kinesin family of motor proteins. |
https://en.wikipedia.org/wiki/Natural%20deduction | In logic and proof theory, natural deduction is a kind of proof calculus in which logical reasoning is expressed by inference rules closely related to the "natural" way of reasoning. This contrasts with Hilbert-style systems, which instead use axioms as much as possible to express the logical laws of deductive reasonin... |
https://en.wikipedia.org/wiki/METLIN | The METLIN Metabolite and Chemical Entity Database is the largest repository of experimental tandem mass spectrometry and neutral loss data acquired from standards. The tandem mass spectrometry data on over 870,000 molecular standards (as of August 16, 2022) is provided to facilitate the identification of chemical enti... |
https://en.wikipedia.org/wiki/Conner%20Peripherals | Conner Peripherals, Inc. (commonly referred to as Conner), was a company that manufactured hard drives for personal computers. Conner Peripherals was founded in 1985 by Seagate Technology co-founder and San Jose State University alumnus Finis Conner (1943– ). In 1986, they merged with CoData, a Colorado start-up founde... |
https://en.wikipedia.org/wiki/Myarc%20Disk%20Operating%20System | MDOS (short for Myarc Disk Operating System) is an operating system commercialized by Myarc. It was designed and implemented specifically for the Geneve 9640 by Paul Charlton. MDOS was designed to fully emulate the TI-99/4A computer while providing an advanced (for its time) virtual memory operating environment with f... |
https://en.wikipedia.org/wiki/Ciliary%20processes | In the anatomy of the eye, the ciliary processes are formed by the inward folding of the various layers of the choroid, viz. the choroid proper and the lamina basalis, and are received between corresponding foldings of the suspensory ligament of the lens.
Anatomy
They are arranged in a circle, and form a sort of frill... |
https://en.wikipedia.org/wiki/Hilbert%27s%20irreducibility%20theorem | In number theory, Hilbert's irreducibility theorem, conceived by David Hilbert in 1892, states that every finite set of irreducible polynomials in a finite number of variables and having rational number coefficients admit a common specialization of a proper subset of the variables to rational numbers such that all the ... |
https://en.wikipedia.org/wiki/Bennett%20acceptance%20ratio | The Bennett acceptance ratio method (BAR) is an algorithm for estimating the difference in free energy between two systems (usually the systems will be simulated on the computer).
It was suggested by Charles H. Bennett in 1976.
Preliminaries
Take a system in a certain super (i.e. Gibbs) state. By performing a Metropo... |
https://en.wikipedia.org/wiki/Social%20networking%20service | A social networking service or SNS (sometimes called a social networking site) is a type of online social media platform which people use to build social networks or social relationships with other people who share similar personal or career content, interests, activities, backgrounds or real-life connections.
Social ... |
https://en.wikipedia.org/wiki/Data%20%26%20Analysis%20Center%20for%20Software | The Data & Analysis Center for Software (DACS) was one of several United States Department of Defense (DoD) sponsored Information Analysis Centers (IACs), administered by the Defense Technical Information Center (DTIC). It was managed by the U.S. Air Force Research Laboratory (AFRL) and operated by Quanterion Solutions... |
https://en.wikipedia.org/wiki/Price%E2%80%93sales%20ratio | Price–sales ratio, P/S ratio, or PSR, is a valuation metric for stocks. It is calculated by dividing the company's market capitalization by the revenue in the most recent year; or, equivalently, divide the per-share stock price by the per-share revenue.
The justified P/S ratio is calculated as the price-to-sales ratio... |
https://en.wikipedia.org/wiki/Segmented%20scan | In computer science, a segmented scan is a modification of the prefix sum with an equal-sized array of flag bits to denote segment boundaries on which the scan should be performed.
Example
In the following, the '1' flag bits indicate the beginning of each segment.
Group1
1 = 1
3 = 1 + 2
6 = 1 + 2 + 3
Group2
4 = ... |
https://en.wikipedia.org/wiki/SQEP | SQEP is an acronym for suitably qualified and experienced person.
The term is notably used in the UK nuclear power industry, see for example this safety management audit report from the Health and Safety Executive.
In the UK nuclear context, it is a standard requirement for licensed sites that "The licensee shall make... |
https://en.wikipedia.org/wiki/Milk%20allergy | Milk allergy is an adverse immune reaction to one or more proteins in cow's milk. Symptoms may take hours to days to manifest, with symptoms including atopic dermatitis, inflammation of the esophagus, enteropathy involving the small intestine and proctocolitis involving the rectum and colon. However, rapid anaphylaxis ... |
https://en.wikipedia.org/wiki/Collagen%20gel%20contraction%20assay | The collagen gel contraction assay is a type of wound contraction. It is performed using the dermal equivalent model, which consists of dermal fibroblasts seeded into a collagen gel. |
https://en.wikipedia.org/wiki/Elongatedness | In image processing, elongatedness for a region is the ratio between the length and width of the minimum bounding rectangle of the region. It is considered a feature of the region. It can be evaluated as the ratio between the area of the region to its thickness squared:
.
where the maximum thickness, , of a holeless ... |
https://en.wikipedia.org/wiki/Multum | The Multum from Information Computer Systems (ICS) was a 16-bit minicomputer developed in the early 1970s in Crewe, Cheshire by ex-employees of English Electric Company. It had a very early port of Pascal. |
https://en.wikipedia.org/wiki/Simplicial%20map | A simplicial map (also called simplicial mapping) is a function between two simplicial complexes, with the property that the images of the vertices of a simplex always span a simplex. Simplicial maps can be used to approximate continuous functions between topological spaces that can be triangulated; this is formalized ... |
https://en.wikipedia.org/wiki/Sudden%20unexplained%20death%20in%20childhood | Sudden unexplained death in childhood (SUDC) is the death of a child over the age of 12 months which remains unexplained after a thorough investigation and autopsy. There has not been enough research to identify risk factors, common characteristics, or prevention strategies for SUDC.
SUDC is similar in concept to sudd... |
https://en.wikipedia.org/wiki/Rapid%20PHP%20Editor | rapid PHP Editor is a PHP Editor that incorporates many functions such as AutoComplete, Syntax checker, debugger and many other tools for fast PHP development.
Rapid PHP Editor also contain other development tools for helping on HTML, CSS, Javascript and many other languages.
Is part of a family of products coverin... |
https://en.wikipedia.org/wiki/Lentiviral%20vector%20in%20gene%20therapy | Lentiviral vectors in gene therapy is a method by which genes can be inserted, modified, or deleted in organisms using lentiviruses.
Lentiviruses are a family of viruses that are responsible for diseases like AIDS, which infect by inserting DNA into their host cells' genome. Many such viruses have been the basis of re... |
https://en.wikipedia.org/wiki/PTPN22 | Protein tyrosine phosphatase non-receptor type 22 (PTPN22) is a cytoplasmatic protein encoded by gene PTPN22 and a member of PEST family of protein tyrosine phosphatases. This protein is also called "PEST-domain Enriched Phosphatase" ("PEP") or "Lymphoid phosphatase" ("LYP"). The name LYP is used strictly for the human... |
https://en.wikipedia.org/wiki/Network%20Computer | The Network Computer (or NC) was a diskless desktop computer device made by Oracle Corporation from about 1996 to 2000. The devices were designed and manufactured by an alliance, which included Sun Microsystems (acquired by Oracle in 2010), IBM, and others. The devices were designed with minimum specifications, based o... |
https://en.wikipedia.org/wiki/Richtersius | Richtersius is a monospecific genus of tardigrades in the family Richtersiidae; its sole species is Richtersius coronifer. R. coronifer is one of two species of tardigrade that have been shown to survive and continue reproducing after exposure to outer space, specifically in the thermosphere at 258–281 km above sea lev... |
https://en.wikipedia.org/wiki/E.%20B.%20Ford | Edmund Brisco "Henry" Ford (23 April 1901 – 2 January 1988) was a British ecological geneticist. He was a leader among those British biologists who investigated the role of natural selection in nature. As a schoolboy Ford became interested in lepidoptera, the group of insects which includes butterflies and moths. He w... |
https://en.wikipedia.org/wiki/Queuine | Queuine () (Q) is a hypermodified nucleobase found in the first (or wobble) position of the anticodon of tRNAs specific for Asn, Asp, His, and Tyr, in most eukaryotes and prokaryotes. Because it is utilized by all eukaryotes but produced exclusively by bacteria, it is a putative vitamin.
The nucleoside of queuine is q... |
https://en.wikipedia.org/wiki/Risk%20Assessment%20under%20the%20Sanitary%20and%20Phytosanitary%20Agreement | The Agreement on the Application of Sanitary and Phytosanitary Measures (the "SPS Agreement") governs rules for food safety and animal and plant health standards. The SPS Agreement permits countries to implement measures provided that they are based on science, are applied only to the extent necessary to protect human,... |
https://en.wikipedia.org/wiki/HPA%20Culture%20Collections | The Health Protection Agency (HPA), along with its subdivision, the National Collection of Type Cultures (NCTC) Culture Collections, is a non-profit organization located in the UK. HPA plays a role for protecting UK public health. More detailed information can be obtained from HPA home page. |
https://en.wikipedia.org/wiki/Bufferbloat | Bufferbloat is a cause of high latency and jitter in packet-switched networks caused by excess buffering of packets. Bufferbloat can also cause packet delay variation (also known as jitter), as well as reduce the overall network throughput. When a router or switch is configured to use excessively large buffers, even v... |
https://en.wikipedia.org/wiki/Non%20linear%20piezoelectric%20effects%20in%20polar%20semiconductors | Non linear piezoelectric effects in polar semiconductors are the manifestation that the strain induced piezoelectric polarization depends not just on the product of the first order piezoelectric coefficients times the strain tensor components but also on the product of the second order (or higher) piezoelectric coeffic... |
https://en.wikipedia.org/wiki/ExMark | ExMark is a term describing the relationship between a fund's return and the market index. The usual designation for this concept is R-squared, but John C. Bogle coined this expression to highlight the difference with other financial products.
For a typical mainstream equity fund, the ExMark runs from 80% to 90%, mean... |
https://en.wikipedia.org/wiki/Summation%20by%20parts | In mathematics, summation by parts transforms the summation of products of sequences into other summations, often simplifying the computation or (especially) estimation of certain types of sums. It is also called Abel's lemma or Abel transformation, named after Niels Henrik Abel who introduced it in 1826.
Statement
Su... |
https://en.wikipedia.org/wiki/Bioprocess%20engineering | Bioprocess engineering, also biochemical engineering, is a specialization of chemical engineering or biological engineering. It deals with the design and development of equipment and processes for the manufacturing of products such as agriculture, food, feed, pharmaceuticals, nutraceuticals, chemicals, and polymers an... |
https://en.wikipedia.org/wiki/Marine%20life | Marine life, sea life, or ocean life is the plants, animals, and other organisms that live in the salt water of seas or oceans, or the brackish water of coastal estuaries. At a fundamental level, marine life affects the nature of the planet. Marine organisms, mostly microorganisms, produce oxygen and sequester carbon. ... |
https://en.wikipedia.org/wiki/Made%20in%20EU | Made in EU was proposed by the European Commission in 2014. The Made in the EU label would indicate the product is mainly made in the European Union.
Significance
The EU is one of the world’s biggest markets with half a billion consumers. Professor Jerzy Buzek, past chair of the European Parliament Committee on Indust... |
https://en.wikipedia.org/wiki/Projectively%20extended%20real%20line | In real analysis, the projectively extended real line (also called the one-point compactification of the real line), is the extension of the set of the real numbers, , by a point denoted . It is thus the set with the standard arithmetic operations extended where possible, and is sometimes denoted by or The added poi... |
https://en.wikipedia.org/wiki/Sterility%20assurance%20level | In microbiology, sterility assurance level (SAL) is the probability that a single unit that has been subjected to sterilization nevertheless remains nonsterile.
It is never possible to prove that all organisms have been destroyed, as the likelihood of survival of an individual microorganism is never zero. So SAL is us... |
https://en.wikipedia.org/wiki/Paleodictyon | Paleodictyon is a trace fossil, usually interpreted to be a burrow, which appears in the geologic marine record beginning in the Precambrian/Early Cambrian and in modern ocean environments. Paleodictyon were first described by Giuseppe Meneghini in 1850. The origin of the trace fossil is enigmatic and numerous candidat... |
https://en.wikipedia.org/wiki/Variant%20Creutzfeldt%E2%80%93Jakob%20disease | Variant Creutzfeldt–Jakob disease (vCJD), commonly referred to as "mad cow disease" or "human mad cow disease" to distinguish it from its BSE counterpart, is a fatal type of brain disease within the transmissible spongiform encephalopathy family. Initial symptoms include psychiatric problems, behavioral changes, and pa... |
https://en.wikipedia.org/wiki/H%2B%2C%20Na%2B-translocating%20pyrophosphatase%20family | {{DISPLAYTITLE:H+, Na+-translocating pyrophosphatase family}}
Members of the H+, Na+-translocating Pyrophosphatase (M+-PPase) Family (TC# 3.A.10) are found in the vacuolar (tonoplast) membranes of higher plants, algae, and protozoa, and in both bacteria and archaea. They are therefore ancient enzymes.
Two types of ino... |
https://en.wikipedia.org/wiki/Blood%20type%20distribution%20by%20country | This list concerns blood type distribution between countries and regions. Blood type (also called a blood group) is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells (RBCs). These antigens may be proteins, carbohydrates, glyco... |
https://en.wikipedia.org/wiki/Temporal%20Key%20Integrity%20Protocol | Temporal Key Integrity Protocol (TKIP ) is a security protocol used in the IEEE 802.11 wireless networking standard. TKIP was designed by the IEEE 802.11i task group and the Wi-Fi Alliance as an interim solution to replace WEP without requiring the replacement of legacy hardware. This was necessary because the breaking... |
https://en.wikipedia.org/wiki/Motivic%20zeta%20function | In algebraic geometry, the motivic zeta function of a smooth algebraic variety is the formal power series:
Here is the -th symmetric power of , i.e., the quotient of by the action of the symmetric group , and is the class of in the ring of motives (see below).
If the ground field is finite, and one applies the c... |
https://en.wikipedia.org/wiki/Iris%20albicans | Iris albicans, also known as the cemetery iris, white cemetery iris, or the white flag iris, is a species of iris which was planted on graves in Muslim regions and grows in many countries throughout the Middle East and northern Africa. It was later introduced to Spain, and then other European countries. It is a natural... |
https://en.wikipedia.org/wiki/Alopecia%20universalis |
Alopecia universalis (AU), also known as alopecia areata universalis, is a medical condition involving the loss of all body hair, including eyebrows, eyelashes, chest hair, armpit hair, and pubic hair. It is the most severe form of alopecia areata. People with the disease are usually healthy and have no other symptoms... |
https://en.wikipedia.org/wiki/Cohen%E2%80%93Macaulay%20ring | In mathematics, a Cohen–Macaulay ring is a commutative ring with some of the algebro-geometric properties of a smooth variety, such as local equidimensionality. Under mild assumptions, a local ring is Cohen–Macaulay exactly when it is a finitely generated free module over a regular local subring. Cohen–Macaulay rings p... |
https://en.wikipedia.org/wiki/TOMLAB | The TOMLAB Optimization Environment is a modeling platform for solving applied optimization problems in MATLAB.
Description
TOMLAB is a general purpose development and modeling environment in MATLAB for research, teaching and practical solution of optimization problems. It enables a wider range of problems to be solve... |
https://en.wikipedia.org/wiki/ARMM%20%28Usenet%29 | Automated Retroactive Minimal Moderation (ARMM) was a program developed by Richard Depew in 1993 to aid in the control of Usenet abuse. Concerned by abusive posts emanating from certain anonymous-posting sites, Depew developed ARMM to allow news administrators to automatically issue cancel messages for such posts. This... |
https://en.wikipedia.org/wiki/Integraph | An Integraph is a mechanical analog computing device for plotting the integral of a graphically defined function.
History
Gaspard-Gustave de Coriolis first described the fundamental principal of a mechanical integraph in 1836 in the Journal de Mathématiques Pures et Appliquées. A full description of an integraph was p... |
https://en.wikipedia.org/wiki/Tapestry%20%28DHT%29 | Tapestry is a peer-to-peer overlay network which provides a distributed hash table, routing, and multicasting infrastructure for distributed applications. The Tapestry peer-to-peer system offers efficient, scalable, self-repairing, location-aware routing to nearby resources.
Introduction
The first generation of peer-... |
https://en.wikipedia.org/wiki/135th%20meridian%20west | The meridian 135° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole.
The 135th meridian west forms a great circle with the 45th meridian east.
The Alaska Time Zone is based on the me... |
https://en.wikipedia.org/wiki/Nitric%20oxide | Nitric oxide (nitrogen oxide or nitrogen monoxide) is a colorless gas with the formula . It is one of the principal oxides of nitrogen. Nitric oxide is a free radical: it has an unpaired electron, which is sometimes denoted by a dot in its chemical formula (•N=O or •NO). Nitric oxide is also a heteronuclear diatomic ... |
https://en.wikipedia.org/wiki/Right%20to%20explanation | In the regulation of algorithms, particularly artificial intelligence and its subfield of machine learning, a right to explanation (or right to an explanation) is a right to be given an explanation for an output of the algorithm. Such rights primarily refer to individual rights to be given an explanation for decisions ... |
https://en.wikipedia.org/wiki/Mir-277%20microRNA%20precursor%20family | In molecular biology mir-277 microRNA is a short RNA molecule. MicroRNAs function to regulate the expression levels of other genes by several mechanisms.
See also
MicroRNA |
https://en.wikipedia.org/wiki/List%20of%20Johnson%20solids | In geometry, a Johnson solid is a strictly convex polyhedron, each face of which is a regular polygon, but which is not uniform, i.e., not a Platonic solid, Archimedean solid, prism or antiprism. In 1966, Norman Johnson published a list which included all 92 solids, and gave them their names and numbers. He did not pro... |
https://en.wikipedia.org/wiki/Geppo | Geppo is the title character of an Italian comic series created by Giovan Battista Carpi.
The character
Geppo is a good-hearted devil, and his naive, shy, compassionate character creates the continuing problems with his "boss", Satan. Other recurring characters in the series are Satan's guard dog, Cerberus, and the a... |
https://en.wikipedia.org/wiki/Somatic%20embryogenesis | Somatic embryogenesis is an artificial process in which a plant or embryo is derived from a single somatic cell. Somatic embryos are formed from plant cells that are not normally involved in the development of embryos, i.e. ordinary plant tissue. No endosperm or seed coat is formed around a somatic embryo.
Cells deriv... |
https://en.wikipedia.org/wiki/Giacomo%20Albanese | Giacomo Albanese (11 July 1890 – 8 June 1947) was an Italian mathematician known for his work in algebraic geometry. He took a permanent position in the University of São Paulo, Brazil, in 1936.
Biography
Albanese attended the school in Palermo, Sicily. He graduated from there in 1909. Then he entered the Scuola Norm... |
https://en.wikipedia.org/wiki/Cystic%20hygroma | A cystic hygroma is an abnormal growth that usually appears on a baby's neck or head. It consists of one or more cysts and tends to grow larger over time. The disorder usually develops while the fetus is still in the uterus, but can also appear after birth.
Also known as cystic lymphangioma and macrocystic lymphatic m... |
https://en.wikipedia.org/wiki/Second%20Hardy%E2%80%93Littlewood%20conjecture | In number theory, the second Hardy–Littlewood conjecture concerns the number of primes in intervals. Along with the first Hardy–Littlewood conjecture, the second Hardy–Littlewood conjecture was proposed by G. H. Hardy and John Edensor Littlewood in 1923.
Statement
The conjecture states that
for integers , where deno... |
https://en.wikipedia.org/wiki/Institute%20of%20Nuclear%20Physics%20of%20the%20Polish%20Academy%20of%20Sciences | The (Henryka Niewodniczański) Institute of Nuclear Physics Polish Academy of Sciences is a research center in the field of nuclear physics of the Polish Academy of Sciences, located in Cracow. It was founded in 1955 by Henryk Niewodniczański. In 1988 the institute was named after Niewodniczański. The co-founder of the ... |
https://en.wikipedia.org/wiki/Runge%E2%80%93Gross%20theorem | In quantum mechanics, specifically time-dependent density functional theory, the Runge–Gross theorem (RG theorem) shows that for a many-body system evolving from a given initial wavefunction, there exists a one-to-one mapping between the potential (or potentials) in which the system evolves and the density (or densitie... |
https://en.wikipedia.org/wiki/Pre-sunrise%20and%20post-sunset%20authorization | In USA AM broadcasting, presunrise authorization (PSRA) and postsunset authorization (PSSA) are permission from the Federal Communications Commission to broadcast in AM on mediumwave using a power level higher than what would normally be permitted prior to sunrise/after sunset, or in the latter case, provide Class D st... |
https://en.wikipedia.org/wiki/Quantum%20eraser%20experiment | In quantum mechanics, a quantum eraser experiment is an interferometer experiment that demonstrates several fundamental aspects of quantum mechanics, including quantum entanglement and complementarity.
The quantum eraser experiment is a variation of Thomas Young's classic double-slit experiment. It establishes that whe... |
https://en.wikipedia.org/wiki/Mir-454%20microRNA%20precursor%20family | In molecular biology mir-454 microRNA is a short RNA molecule. MicroRNAs function to regulate the expression levels of other genes by several mechanisms.
See also
MicroRNA |
https://en.wikipedia.org/wiki/Superalgebra | In mathematics and theoretical physics, a superalgebra is a Z2-graded algebra. That is, it is an algebra over a commutative ring or field with a decomposition into "even" and "odd" pieces and a multiplication operator that respects the grading.
The prefix super- comes from the theory of supersymmetry in theoretical ph... |
https://en.wikipedia.org/wiki/Phenol-soluble%20modulin | Phenol-soluble modulins (PSMs) are a family of small proteins, that carry out a variety of functions, including acting as toxins, assisting in biofilm formation, and colony spreading. PSMs are produced by Staphylococcus bacteria including Methicillin-resistant Staphylococcus aureus (MRSA), and Staphylococcus epidermidi... |
https://en.wikipedia.org/wiki/Body%20broker | A body broker (also non-transplant tissue banks) is a firm or an individual that buys and sells cadavers or human body parts.
Whereas the market for organ transplantation is heavily regulated in the United States, the use of cadaver parts for research, training, and other uses is not. Trade in these body parts is perf... |
https://en.wikipedia.org/wiki/2019%20World%20Jigsaw%20Puzzle%20Championship | The 2019 World Jigsaw Puzzle Championship is the first edition of the World Jigsaw Puzzle Championships competition organized by the World Jigsaw Puzzle Federation (WJPF). It was held between 28 and 29 September in Valladolid, Spain.
Organisation
The venue for this first World Jigsaw Puzzle Championship was the Cúpul... |
https://en.wikipedia.org/wiki/Diffusion-limited%20escape | Diffusion-limited escape occurs when the rate of atmospheric escape to space is limited by the upward diffusion of escaping gases through the upper atmosphere, and not by escape mechanisms at the top of the atmosphere (the exobase). The escape of any atmospheric gas can be diffusion-limited, but only diffusion-limited ... |
https://en.wikipedia.org/wiki/Pioneer%20factor | Pioneer factors are transcription factors that can directly bind condensed chromatin. They can have positive and negative effects on transcription and are important in recruiting other transcription factors and histone modification enzymes as well as controlling DNA methylation. They were first discovered in 2002 as ... |
https://en.wikipedia.org/wiki/Gordon%20Pask | Andrew Gordon Speedie Pask (28 June 1928 – 29 March 1996) was a British cybernetician, inventor and polymath who made during his lifetime multiple contributions to cybernetics, educational psychology, educational technology, epistemology, chemical computing, architecture, and the performing arts. During his life he gai... |
https://en.wikipedia.org/wiki/Extended%20hemispherical%20lens | The extended hemispherical lens is a commonly used lens for millimeter-wave electromagnetic radiation. Such lenses are typically fabricated from dielectric materials such as Teflon or silicon. The geometry consists of a hemisphere of radius on a cylinder of length , with the same radius.
Scanning performance
When a... |
https://en.wikipedia.org/wiki/Deep%20ecology | Deep ecology is an environmental philosophy that promotes the inherent worth of all living beings regardless of their instrumental utility to human needs, and the restructuring of modern human societies in accordance with such ideas.
Deep ecology argues that the natural world is a complex of relationships in which the... |
https://en.wikipedia.org/wiki/Lithogenic%20silica | Lithogenic silica (LSi) is silica (SiO2) derived from terrigenous rock (Igneous, metamorphic, and sedimentary), lithogenic sediments composed of the detritus of pre-existing rock, volcanic ejecta, extraterrestrial material, and minerals such silicate. Silica is the most abundant compound in the Earth's crust (59%) and ... |
https://en.wikipedia.org/wiki/Kahnotation | Kahnotation is a tap dance notation developed by Stanley D. Kahn to document and communicate tap dancing steps and routines.
History
Kahnotation was developed from 1930-1950 by Stanley D. Kahn. A prominent figure of the International Tap Association, he instructed tap dance at his San Francisco studio for 45 years, a... |
https://en.wikipedia.org/wiki/Mesochronous%20network | A mesochronous network is a telecommunications network in which the clocks run with the same frequency but unknown phases. Compare synchronous network.
See also
Synchronization in telecommunications
Isochronous signal
Plesiochronous system
Asynchronous system
Network architecture
Synchronization |
https://en.wikipedia.org/wiki/Anabelian%20geometry | Anabelian geometry is a theory in number theory which describes the way in which the algebraic fundamental group G of a certain arithmetic variety X, or some related geometric object, can help to restore X. The first results for number fields and their absolute Galois groups were obtained by Jürgen Neukirch, Masatoshi ... |
https://en.wikipedia.org/wiki/GABRA4 | Gamma-aminobutyric acid receptor subunit alpha-4 is a protein that in humans is encoded by the GABRA4 gene.
GABA is the major inhibitory neurotransmitter in the mammalian brain where it acts at GABA-A receptors, which are ligand-gated chloride channels. Chloride conductance of these channels can be modulated by agents... |
https://en.wikipedia.org/wiki/Chakragati%20mouse | Chakragati mouse (ckr) is an insertional transgenic mouse mutant (Mus musculus) displaying hyperactive behaviour and circling. It is also deficient in prepulse inhibition, latent inhibition and has brain abnormalities such as lateral ventricular enlargement that are typical to endophenotypic models of schizophrenia, wh... |
https://en.wikipedia.org/wiki/List%20of%20Canadian%20heritage%20wheat%20varieties | 'Red Fife' was the first named variety of wheat developed in Canada. Plant breeders continue to use heritage wheat varieties in order to develop new varieties.
Farmers are growing heritage wheat varieties as part of the 100 Mile Diet, 'eat local' and Slow Food movements. 'Red Fife' wheat is the first variety preserved... |
https://en.wikipedia.org/wiki/Factory%20Physics | Factory Physics is a book written by Wallace Hopp and Mark Spearman, which introduces a science of operations for manufacturing management. According to the book's preface, Factory Physics is "a systematic description of the underlying behavior of manufacturing systems. Understanding it enables managers and engineers... |
https://en.wikipedia.org/wiki/C-reactive%20protein | C-reactive protein (CRP) is an annular (ring-shaped) pentameric protein found in blood plasma, whose circulating concentrations rise in response to inflammation. It is an acute-phase protein of hepatic origin that increases following interleukin-6 secretion by macrophages and T cells. Its physiological role is to bind ... |
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