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Maia Garcia Vergniory is a Spanish computational physicist who is a Professor at the University of Sherbrooke . [ 1 ] Her work in topological quantum chemistry investigates the phases of topological materials. [ 2 ] She was elected Fellow of the American Physical Society in 2022. [ 3 ]
Vergniory was born in Getxo . [ ... | https://en.wikipedia.org/wiki/Maia_Vergniory |
The maiden flight , also known as first flight , of an aircraft is the first occasion on which it leaves the ground under its own power. The same term is also used for the first launch of rockets .
In the early days of aviation it could be dangerous, because the exact handling characteristics of the aircraft were gene... | https://en.wikipedia.org/wiki/Maiden_flight |
Mail-in-a-Box is a free and open-source program for mail server hosting developed by Joshua Tauberer . [ 1 ] [ 2 ] The software's goal is to enable any user to turn a cloud system into a mail server in a few hours. [ 3 ] The tool enables developers to host mail for multiple users and multiple domain names . [ 4 ] [ 5 ]... | https://en.wikipedia.org/wiki/Mail-in-a-Box |
A mail chute is a device by which mail is collected for pick-up by a post office from within high-rise buildings, such as offices, hospitals, and hotels. Deposit boxes on upper floors are connected via a chute to a central depository at ground level, from which the mail is picked up.
The mail chute was patented by Jam... | https://en.wikipedia.org/wiki/Mail_chute |
The Maillard reaction ( / m aɪ ˈ j ɑːr / my- YAR ; French: [majaʁ] ) is a chemical reaction between amino acids and reducing sugars to create melanoidins , the compounds that give browned food its distinctive flavor. Seared steaks, fried dumplings, cookies and other kinds of biscuits, breads, toasted marshmallows, fala... | https://en.wikipedia.org/wiki/Maillard_reaction |
Main-group element-mediated activation of dinitrogen is the N 2 activation facilitated by reactive main group element centered molecules (e.g., low valent main group metal calcium, [ 1 ] dicoordinate borylene, [ 2 ] [ 3 ] [ 4 ] boron radical, [ 5 ] carbene, [ 6 ] [ 7 ] etc.).
Dinitrogen fixation is essential for human... | https://en.wikipedia.org/wiki/Main-group_element-mediated_activation_of_dinitrogen |
Main group organometallic chemistry concerns the preparation and properties of main-group elements directly bonded to carbon. The inventory is large. The compounds exhibit a wide range of properties, including ones that are water-stable and others that are pyrophoric . [ 1 ] Many are very useful themselves, as chemical... | https://en.wikipedia.org/wiki/Main_group_organometallic_chemistry |
The technical meaning of maintenance involves functional checks, servicing, repairing or replacing of necessary devices, equipment, machinery , building infrastructure and supporting utilities in industrial, business, and residential installations. [ 1 ] [ 2 ] Terms such as "predictive" or "planned" maintenance describ... | https://en.wikipedia.org/wiki/Maintenance |
Maintenance-free operating period ( MFOP ) is an alternative measure of performance to the mean time between failures (MTBF), defined as the time period during which a device will be able to perform each of its intended functions, requiring only a minimal degree of maintenance. [ 1 ] It was originally proposed in 1996 ... | https://en.wikipedia.org/wiki/Maintenance-free_operating_period |
Maintenance Engineering is the discipline and profession of applying engineering concepts for the optimization of equipment, procedures, and departmental budgets to achieve better maintainability , reliability , and availability of equipment.
Maintenance, and hence maintenance engineering, is increasing in importance ... | https://en.wikipedia.org/wiki/Maintenance_engineering |
Maintenance of an organism is the collection of processes to stay alive, excluding production processes. The Dynamic Energy Budget theory delineates two classes
The theory assumes that maturity maintenance costs can be reduced more easily during starvation than somatic maintenance costs. Under extreme starvation condi... | https://en.wikipedia.org/wiki/Maintenance_of_an_organism |
Maintenance respiration (or maintenance energy ) refers to metabolism occurring in an organism that is needed to maintain that organism in a healthy, living state. Maintenance respiration contrasts with growth respiration , which is responsible for the synthesis of new structures in growth, nutrient uptake, nitrogen (N... | https://en.wikipedia.org/wiki/Maintenance_respiration |
Majda's model is a qualitative model (in mathematical physics ) introduced by Andrew Majda in 1981 for the study of interactions in the combustion theory of shock waves and explosive chemical reactions. [ 1 ]
The following definitions are with respect to a Cartesian coordinate system with 2 variables. For functions u ... | https://en.wikipedia.org/wiki/Majda's_model |
The Major immunogene complex (MIC) is a gene sequence containing loci coding for antigens on lymphocyte surface (Ia) histocompatibility (H) antigens, products of immune responses , and components system proteins . [ 1 ]
The genes that code for immunoglobulins are assorted independently of the MIC, but the plasma c... | https://en.wikipedia.org/wiki/Major_immunogene_complex |
Major irrigation project is a classification of irrigation projects used in India. A project with a cultivable command area of more than 10,000 hectares is classified as a major irrigation project. [ 1 ] Before the Fifth Five-Year Plan , irrigation schemes were classified on the basis of investments needed to implement... | https://en.wikipedia.org/wiki/Major_irrigation_project |
Majorana 1 is a hardware device developed by Microsoft , with potential applications to quantum computing . [ 1 ] It is the first device produced by Microsoft intended for use in quantum computing. It is an indium arsenide - aluminium hybrid device that admits superconductivity at low temperatures. Microsoft claims tha... | https://en.wikipedia.org/wiki/Majorana_1 |
In error detection and correction , majority logic decoding is a method to decode repetition codes , based on the assumption that the largest number of occurrences of a symbol was the transmitted symbol.
In a binary alphabet made of 0 , 1 {\displaystyle 0,1} , if a ( n , 1 ) {\displaystyle (n,1)} repetition code is us... | https://en.wikipedia.org/wiki/Majority_logic_decoding |
In mathematics , majorization is a preorder on vectors of real numbers . For two such vectors, x , y ∈ R n {\displaystyle \mathbf {x} ,\ \mathbf {y} \in \mathbb {R} ^{n}} , we say that x {\displaystyle \mathbf {x} } weakly majorizes (or dominates) y {\displaystyle \mathbf {y} } from below , commonly denoted x ≻ w y , {... | https://en.wikipedia.org/wiki/Majorization |
The Majumdar–Ghosh model is a one-dimensional quantum Heisenberg spin model in which the nearest-neighbour antiferromagnetic exchange interaction is twice as strong as the next-nearest-neighbour interaction. It is a special case of the more general J 1 {\displaystyle J_{1}} - J 2 {\displaystyle J_{2}} model, with J 1 =... | https://en.wikipedia.org/wiki/Majumdar–Ghosh_model |
In computing , MakeModes is an application which is used to generate data which allows RISC OS computers to produce display output compatible with various computer monitors . It can generate and modify data which is used by the operating system to produce different graphics display resolutions .
MakeModes was released... | https://en.wikipedia.org/wiki/MakeModes |
In operations research , the makespan of a project is the length of time that elapses from the start of work to the end. This type of multi-mode resource constrained project scheduling problem (MRCPSP) seeks to create the shortest logical project schedule, by efficiently using project resources, adding the lowest numbe... | https://en.wikipedia.org/wiki/Makespan |
Maki Kawai ( 川合眞紀 , Kawai Maki ) is a Japanese chemist who developed spatially selective single-molecule spectroscopy. In 2018, she became the first woman to become president of the Chemical Society of Japan .
Kawai earned her bachelor's degree at the University of Tokyo in 1975. [ 1 ] She completed her doctoral studi... | https://en.wikipedia.org/wiki/Maki_Kawai |
Makoto Fujita ( 藤田 誠 , Fujita Makoto ) is a Japanese chemist who specializes in supramolecular coordination chemistry .
He is a professor in the Department of Applied Chemistry at the University of Tokyo . He has published extensively on the multicomponent assembly of large coordination cages. Compounds designed and ... | https://en.wikipedia.org/wiki/Makoto_Fujita_(chemist) |
Malachite green is an organic compound that is used as a dyestuff and controversially as an antimicrobial in aquaculture . Malachite green is traditionally used as a dye for materials such as silk , leather , and paper . Despite its name the dye is not prepared from the mineral malachite ; the name just comes from the ... | https://en.wikipedia.org/wiki/Malachite_green |
Malacidins are a class of chemicals made by bacteria found in soil that can kill Gram-positive bacteria . Their activity appears to be dependent on calcium . The discovery of malacidins was published in 2018. [ 2 ]
The malacidin family were discovered using a new method of soil microbiome screening that does not requi... | https://en.wikipedia.org/wiki/Malacidin |
Malacology [ a ] , from Ancient Greek μαλακός ( malakós ), meaning "soft", and λόγος ( lógos ), meaning "study", is the branch of invertebrate zoology that deals with the study of the Mollusca (molluscs or mollusks), the second-largest phylum of animals in terms of described species [ 1 ] after the arthropods . Mollusk... | https://en.wikipedia.org/wiki/Malacology |
In evolution , a maladaptation ( /ˌmælædæpˈteɪʃən/ ) is a trait that is (or has become) more harmful than helpful, in contrast with an adaptation , which is more helpful than harmful. All organisms, from bacteria to humans , display maladaptive and adaptive traits. In animals (including humans), adaptive behaviors cont... | https://en.wikipedia.org/wiki/Maladaptation |
A Malaise trap is a large, tent-like structure used for trapping , killing, and preserving flying insects , particularly Hymenoptera and Diptera . The trap is made of a material such as PET (polyester) netting and can be various colours. Insects fly into the tent wall and are funneled into a collecting vessel attached ... | https://en.wikipedia.org/wiki/Malaise_trap |
In organic chemistry , the Malaprade reaction or Malaprade oxidation is a reaction that converts vicinal diols by periodic acid or a periodate salt to give a pair of carbonyl derivatives. [ 1 ] [ 2 ] The reaction was first reported by Léon Malaprade in 1928. [ 3 ] [ 4 ] Amino alcohols are also cleaved. [ 5 ]
In terms ... | https://en.wikipedia.org/wiki/Malaprade_reaction |
The malaria therapy (or malaria inoculation , [ 1 ] and sometimes malariotherapy [ 2 ] ) is an archaic medical procedure of treating diseases using artificial injection of malaria parasites . [ 3 ] It is a type of pyrotherapy (or pyretotherapy) by which high fever is induced to stop or eliminate symptoms of certain dis... | https://en.wikipedia.org/wiki/Malaria_therapy |
Malate dehydrogenase ( EC 1.1.1.37 ) ( MDH ) is an enzyme that reversibly catalyzes the oxidation of malate to oxaloacetate using the reduction of NAD + to NADH. This reaction is part of many metabolic pathways , including the citric acid cycle . Other malate dehydrogenases , which have other EC numbers and catalyze ot... | https://en.wikipedia.org/wiki/Malate_dehydrogenase |
The malate–aspartate shuttle (sometimes simply the malate shuttle ) is a biochemical system for translocating electrons produced during glycolysis across the semipermeable inner membrane of the mitochondrion for oxidative phosphorylation in eukaryotes . These electrons enter the electron transport chain of the mitochon... | https://en.wikipedia.org/wiki/Malate–aspartate_shuttle |
Malathion is an organophosphate insecticide which acts as an acetylcholinesterase inhibitor . In the USSR , it was known as carbophos , in New Zealand and Australia as maldison and in South Africa as mercaptothion . The compound's name is presumably related to malic acid (2-hydroxybutanedioic acid) owning to the 2-subs... | https://en.wikipedia.org/wiki/Malathion |
Malayalee Engineers Association in North America (MEANA) is a non-profit , non-political fellowship of Malayali (Malayalee) engineers in the United States. The primary objective is to provide a platform for sharing common interests of the engineers with Malayalee origin, find resolution for issues and contribute to the... | https://en.wikipedia.org/wiki/Malayalee_Engineers_Association_in_North_America |
Malcolm Cuthbert Nokes MC MA BSc (20 May 1897 – 22 November 1986) was a British schoolteacher, soldier, research scientist and Olympic athlete, who competed in the hammer throw and discus throw . [ 3 ]
He won the bronze medal in the hammer throw at the 1924 Summer Olympics . Four years later he finished eleventh in th... | https://en.wikipedia.org/wiki/Malcolm_Nokes |
Male contraceptives , also known as male birth control , are methods of preventing pregnancy by interrupting the function of sperm. [ 1 ] The main forms of male contraception available today are condoms , vasectomy , and withdrawal , which together represented 20% of global contraceptive use in 2019. [ 2 ] [ 3 ] [ 4 ] ... | https://en.wikipedia.org/wiki/Male_contraceptive |
Male egg can refer to either:
This article focuses on the first definition.
Male eggs are the result of a process in which the eggs of a female would be emptied of their genetic contents (a technique similar to that used in the cloning process), and those contents would be replaced with male DNA. Such eggs could then... | https://en.wikipedia.org/wiki/Male_egg |
In ethology , male-male intrasexual competition occurs when two males of the same species compete for the opportunity to mate with a female . Sexually dimorphic traits, size, sex ratio , [ 1 ] and the social situation [ 2 ] may all play a role in the effects male-male competition has on the reproductive success of a ma... | https://en.wikipedia.org/wiki/Male_intrasexual_competition |
Maleic hydrazide , often known by the brand name Fazor , is a plant growth regulator that reduces growth through preventing cell division but not cell enlargement. [ 1 ] [ 2 ] It is applied to the foliage of potato, onion, garlic and carrot crops to prevent sprouting during storage. [ 3 ] It can also be used to control... | https://en.wikipedia.org/wiki/Maleic_hydrazide |
The Malewicki equations (or Fehskens–Malewicki equations) for sub-sonic endo-atmospheric rocket flight describe the maximum altitude and coast time of a vehicle such as a model rocket. Aerospace engineer and inventor Douglas Malewicki first published them as a technical report by the model rocket company Estes Industr... | https://en.wikipedia.org/wiki/Malewicki_equations |
In mathematics, the Malgrange preparation theorem is an analogue of the Weierstrass preparation theorem for smooth functions . It was conjectured by René Thom and proved by B. Malgrange ( 1962–1963 , 1964 , 1967 ).
Suppose that f ( t , x ) is a smooth complex function of t ∈ R and x ∈ R n near the origin, and let k b... | https://en.wikipedia.org/wiki/Malgrange_preparation_theorem |
In mathematics, the Malgrange–Ehrenpreis theorem states that every non-zero linear differential operator with constant coefficients has a Green's function . It was first proved independently by Leon Ehrenpreis ( 1954 , 1955 ) and Bernard Malgrange ( 1955–1956 ).
This means that the differential equation
where P {\dis... | https://en.wikipedia.org/wiki/Malgrange–Ehrenpreis_theorem |
Malic acid is an organic compound with the molecular formula HO 2 CCH(OH)CH 2 CO 2 H . It is a dicarboxylic acid that is made by all living organisms, contributes to the sour taste of fruits, and is used as a food additive . Malic acid has two stereoisomeric forms ( L - and D -enantiomers), though only the L -isomer ex... | https://en.wikipedia.org/wiki/Malic_acid |
Malignant transformation is the process by which cells acquire the properties of cancer . This may occur as a primary process in normal tissue, or secondarily as malignant degeneration of a previously existing benign tumor .
There are many causes of primary malignant transformation, or tumorigenesis . Most human canc... | https://en.wikipedia.org/wiki/Malignant_transformation |
Malleability of intelligence describes the processes by which intelligence can increase or decrease over time and is not static. These changes may come as a result of genetics , pharmacological factors, psychological factors, behavior , or environmental conditions . Malleable intelligence may refer to changes in cogn... | https://en.wikipedia.org/wiki/Malleability_of_intelligence |
In mathematics — specifically, in measure theory — Malliavin's absolute continuity lemma is a result due to the French mathematician Paul Malliavin that plays a foundational rôle in the regularity ( smoothness ) theorems of the Malliavin calculus . Malliavin's lemma gives a sufficient condition for a finite Borel meas... | https://en.wikipedia.org/wiki/Malliavin's_absolute_continuity_lemma |
In probability theory and related fields, Malliavin calculus is a set of mathematical techniques and ideas that extend the mathematical field of calculus of variations from deterministic functions to stochastic processes . In particular, it allows the computation of derivatives of random variables . Malliavin calculus... | https://en.wikipedia.org/wiki/Malliavin_calculus |
In mathematics , the Malliavin derivative [ 1 ] is a notion of derivative in the Malliavin calculus . Intuitively, it is the notion of derivative appropriate to paths in classical Wiener space , which are "usually" not differentiable in the usual sense. [ citation needed ]
Let H {\displaystyle H} be the Cameron–Martin... | https://en.wikipedia.org/wiki/Malliavin_derivative |
Malligyong-1 ( Korean : 《만리경-1》호 ; Hanja : 萬里鏡 1号 ; lit. Telescope-1) is a type of North Korean reconnaissance satellite . [ 2 ]
The mission's first two launch attempts failed, with the third one succeeding on 21 November 2023. This was also the first successful flight of North Korea's new launch vehicle, the Chollima... | https://en.wikipedia.org/wiki/Malligyong-1 |
In organic chemistry , the Mallory reaction is a photochemical -cyclization– elimination reaction of di aryl - ethylene structures to form phenanthrenes and other polycyclic form polycyclic aromatic hydrocarbons and heteroaromatics. [ 1 ] [ 2 ] This name reaction is named for Frank Mallory , who discovered it while a g... | https://en.wikipedia.org/wiki/Mallory_reaction |
In mathematics , Malmquist's theorem , is the name of any of the three theorems proved by Axel Johannes Malmquist ( 1913 , 1920 , 1941 ). These theorems restrict the forms of first order algebraic differential equations which have transcendental meromorphic or algebroid solutions.
Theorem (1913). If the differential e... | https://en.wikipedia.org/wiki/Malmquist's_theorem |
Malnutrition occurs when an organism gets too few or too many nutrients , resulting in health problems. [ 11 ] [ 12 ] Specifically, it is a deficiency , excess, or imbalance of energy, protein and other nutrients which adversely affects the body's tissues and form. [ 13 ]
Malnutrition is a category of diseases that in... | https://en.wikipedia.org/wiki/Malnutrition |
Malonyl-CoA is a coenzyme A derivative of malonic acid .
Malonyl-CoA cannot cross membranes and there is no known malonyl-CoA import mechanism. [ 1 ] [ 2 ] The biosynthesis therefore takes place locally:
It plays a key role in chain elongation in fatty acid biosynthesis and polyketide biosynthesis.
Malonyl-CoA provi... | https://en.wikipedia.org/wiki/Malonyl-CoA |
Maltenes are the n - alkane ( pentane or heptane )-soluble molecular components of asphalt , which is the residue remaining after petroleum refiners remove other useful derivatives such as gasoline and kerosene from crude oil . Asphaltene compounds are the other primary component of asphalt.
As viscous liquids , malte... | https://en.wikipedia.org/wiki/Maltenes |
In polymer physics , Maltese Cross is a set of four symmetrically disposed sectors of high extinction that is displayed when a polymer is observed under polarized lights. This is usually observed when trying to observe spheruliltes in polymers.
This article about polymer science is a stub . You can help Wikipedia by e... | https://en.wikipedia.org/wiki/Maltese_cross_(optics) |
A maltoside is a glycoside with maltose as the glycone (sugar) functional group . Among the most common are alkyl maltosides , which contain hydrophobic alkyl chains as the aglycone . Given their amphiphilic properties, these comprise a class of detergents , where variation in the alkyl chain confers a range of deterge... | https://en.wikipedia.org/wiki/Maltoside |
MammaPrint is a prognostic and predictive diagnostic test for early stage breast cancer patients that assess the risk that a tumor will metastasize to other parts of the body. [ 1 ] It gives a binary result, high-risk or low-risk classification , and helps physicians determine whether or not a patient will benefit from... | https://en.wikipedia.org/wiki/MammaPrint |
Mammalian-wide interspersed repeats (MIRs) are transposable elements in the genomes of some organisms and belong to the group of Short interspersed nuclear elements (SINEs) .
MIRs are found in all mammals (including marsupials ). [ 1 ]
It is estimated that there are around 368,000 MIRs in the human genome . [ 2 ]
T... | https://en.wikipedia.org/wiki/Mammalian-wide_interspersed_repeat |
The mammalian CPEB3 ribozyme is a self cleaving non-coding RNA located in the second intron of the CPEB3 gene which belongs to a family of genes regulating messenger RNA polyadenylation . [ 1 ] This ribozyme is highly conserved and
found only in mammals. [ 1 ] The CPEB3 ribozyme is structurally and biochemically relate... | https://en.wikipedia.org/wiki/Mammalian_CPEB3_ribozyme |
The Mammalian Promoter Database ( MPromDb ) is a curated database of gene promoters identified from ChIP-seq . [ 1 ] The proximal promoter region (upstream of the core-promoter region) contains the cis-regulatory elements of most of the transcription factors (TFs). [ 2 ]
Recently, a better approach to annotate active ... | https://en.wikipedia.org/wiki/Mammalian_promoter_database |
In zoology , mammalogy is the study of mammals – a class of vertebrates with characteristics such as homeothermic metabolism , fur , four-chambered hearts , and complex nervous systems . [ 1 ] The archive of number of mammals on earth is constantly growing, but is currently set at 6,495 different mammal species includi... | https://en.wikipedia.org/wiki/Mammalogy |
Mammoth Biosciences is a biotechnology company based in Brisbane, California [ 1 ] developing diagnostic tests using CRISPR - Cas12a and CRISPR-based therapies using its proprietary ultra-small CRISPR systems. Several CRISPR-Cas systems identified through the company's metagenomics -based protein discovery platform, in... | https://en.wikipedia.org/wiki/Mammoth_Biosciences |
Man and the Biosphere Programme ( MAB ) is an intergovernmental scientific program, launched in 1971 by UNESCO , that aims to establish a scientific basis for the 'improvement of relationships' between people and their environments. [ 1 ]
MAB engages with the international development agenda, especially the Sustainabl... | https://en.wikipedia.org/wiki/Man_and_the_Biosphere_Programme |
A man engine is a mechanism of reciprocating ladders and stationary platforms installed in mines to assist the miners' journeys to and from the working levels. It was invented in Germany in the 19th century and was a prominent feature of tin and copper mines in Cornwall until the beginning of the twentieth century.
In... | https://en.wikipedia.org/wiki/Man_engine |
Managed Mobility Services (MMS) is a term used by analysts and businesses to describe the outsourcing and managing services that many businesses provide.
Mobility Managed Services includes the IT and process management service needed for a company to acquire, provision and support smartphones , tablets and other field... | https://en.wikipedia.org/wiki/Managed_Mobility_Services |
Managed access is managing cellular network access from contraband phones within a corrections facility. [ 1 ] Managed access differs from cellular jamming technologies , which are outlawed in the United States. [ 2 ] [ 3 ] A managed access system functions like a femtocell or low-power cell tower which passes calls to... | https://en.wikipedia.org/wiki/Managed_access_(corrections) |
A managed facilities-based voice network ( MFVN ) is a communications network managed, operated, and maintained by a voice service provider that delivers traditional telephone service via a loop start analog telephone interface. MFVNs are interconnected with the public switched telephone network (PSTN) or other MFVNs a... | https://en.wikipedia.org/wiki/Managed_facilities-based_voice_network |
Managed retreat involves the purposeful, coordinated movement of people and buildings away from risks. This may involve the movement of a person, infrastructure (e.g., building or road), or community . It can occur in response to a variety of hazards such as flood, wildfire, or drought. Politicians , insurers , and res... | https://en.wikipedia.org/wiki/Managed_retreat |
Windows Vista contains a range of new technologies and features that are intended to help network administrators and power users better manage their systems. Notable changes include a complete replacement of both the Windows Setup and the Windows startup processes, completely rewritten deployment mechanisms, new diagno... | https://en.wikipedia.org/wiki/Management_features_new_to_Windows_Vista |
Management System (Open Source) is a socio-technical system that leverages the cumulative knowledge of management practitioners and evidenced based research from the past 130 years. [ 1 ] [ 2 ] [ 3 ] [ 4 ] The system was developed by DoD components in partnership with industry experts [ 5 ] [ 6 ] and academic researche... | https://en.wikipedia.org/wiki/Management_system_(open_source) |
Mānaiakalani is a constellation in Polynesian culture which translates to "The Chief's Fishline". It refers to the fishhook of demi-god Māui . Polynesian mythology tells of Māui pulling large fish from the ocean, representing the discovery of new islands. It is primarily made of Scorpius and the Navigator's Triangle .... | https://en.wikipedia.org/wiki/Manaiakalani |
Manava (c. 750 BC – 690 BC) is an author of the Hindu geometric text of Sulba Sutras .
The Manava Sulbasutra is not the oldest (the one by Baudhayana is older), nor is it one of the most important, there being at least three Sulbasutras which are considered more important. Historians place his lifetime at around 750 B... | https://en.wikipedia.org/wiki/Manava |
The manca (plural: mancae ) is the post- larval juvenile in some crustaceans . The manca stage is the defining characteristic of a clade called Mancoida which comprises all the members of the Peracarida except the Amphipoda . [ 1 ] Mancae closely resemble the adult form, but for the absence of the last pair of pereiopo... | https://en.wikipedia.org/wiki/Manca |
The Mandarin paradox is an ethical parable used to illustrate the difficulty of fulfilling moral obligations when moral punishment is unlikely or impossible, leading to moral disengagement . [ 1 ] It has been used to underscore the fragility of ethical standards when moral agents are separated by physical, cultural, or... | https://en.wikipedia.org/wiki/Mandarin_paradox |
The Mandelin reagent is used as a simple spot-test to presumptively identify alkaloids as well as other compounds. It is composed of a mixture of ammonium metavanadate and concentrated sulfuric acid . Its primary use is for the detection of ketamine and PMA [ 1 ] Unlike the most common reagent test chemicals, it has a ... | https://en.wikipedia.org/wiki/Mandelin_reagent |
In theoretical physics , the Mandelstam variables are numerical quantities that encode the energy , momentum , and angles of particles in a scattering process in a Lorentz-invariant fashion. They are used for scattering processes of two particles to two particles. The Mandelstam variables were first introduced by physi... | https://en.wikipedia.org/wiki/Mandelstam_variables |
Maneb (manganese ethylene-bis-dithiocarbamate) is a fungicide and a polymeric complex of manganese with the ethylene bis (dithiocarbamate) anionic ligand . [ 1 ]
Exposure to maneb can occur when breathed in; it can irritate the eyes , nose , and throat as well as cause headache , fatigue , nervousness, dizziness, seiz... | https://en.wikipedia.org/wiki/Maneb |
Manel De Aguas Muñoz (born 10 October 1996 in Barcelona ), known artistically as Manel De Aguas , [ 1 ] is a Spanish cyborg artist and transpecies activist based in Barcelona , [ 2 ] best known for developing and installing weather sensory fins in his head. [ 3 ] The fins, formally known as 'Weather Fins', allow him to... | https://en.wikipedia.org/wiki/Manel_Muñoz |
Manfred Schidlowski (13 November 1933 – 3 October 2012) was a German Professor of Geochemistry at the Max-Planck-Institut for Chemistry (Otto-Hahn-Institut) in Mainz . [ 1 ] His research was concerned with the biochemistry of the Early Earth with a focus on isotope-biogeochemistry and the evidence of the earliest life ... | https://en.wikipedia.org/wiki/Manfred_Schidlowski |
Manganese(II) sulfate usually refers to the inorganic compound with the formula MnSO 4 ·H 2 O. This pale pink deliquescent solid is a commercially significant manganese(II) salt. Approximately 260,000 tonnes of manganese(II) sulfate were produced worldwide in 2005. It is the precursor to manganese metal and many other ... | https://en.wikipedia.org/wiki/Manganese(II)_sulfate |
Manganese(III) acetate describes a family of materials with the approximate formula Mn(O 2 CCH 3 ) 3 . These materials are brown solids that are soluble in acetic acid and water. They are used in organic synthesis as oxidizing agents . [ 1 ]
Although manganese(III) triacetate has not been reported, salts of basic ma... | https://en.wikipedia.org/wiki/Manganese(III)_acetate |
Manganese-mediated coupling reactions are radical coupling reactions between enolizable carbonyl compounds and unsaturated compounds initiated by a manganese(III) salt, typically manganese(III) acetate. Copper(II) acetate is sometimes used as a co-oxidant to assist in the oxidation of intermediate radicals to carbocati... | https://en.wikipedia.org/wiki/Manganese-mediated_coupling_reactions |
Manganese(VII) oxide (manganese heptoxide) is an inorganic compound with the formula Mn 2 O 7 . Manganese heptoxide is a volatile liquid with an oily consistency. It is a highly reactive and powerful oxidizer that reacts explosively with nearly any organic compound . It was first described in 1860. [ 1 ] It is the acid... | https://en.wikipedia.org/wiki/Manganese_heptoxide |
Manganese is an essential biological element in all organisms. [ 1 ] It is used in many enzymes and proteins. [ 2 ] [ 3 ] It is essential in plants . [ 4 ]
The classes of enzymes that have manganese cofactors include oxidoreductases , transferases , hydrolases , lyases , isomerases and ligases . Other enzymes containi... | https://en.wikipedia.org/wiki/Manganese_in_biology |
Manganese nitrides are salts of manganese and the nitride ion. Four of these compounds are stable at atmospheric pressure . The most important is Mn 3 N 2 , which catalyzes nitrogen fixation and is a high-temperature antiferromagnet . The others are Mn 6 N 5–6 , Mn 4 N, [ 1 ] [ 2 ] and Mn 2 N. [ 3 ] The compounds gene... | https://en.wikipedia.org/wiki/Manganese_nitrides |
Mangotoxin is a small peptide produced in Pseudomonas syringae . It was found to cause apical necrosis in mango plants. It also causes chlorosis in plants by disrupting ornithine and arginine biosynthesis . [ 1 ]
The proteins required for mangotoxin biosynthesis are encoded by the genes in mangotoxin biosynthetic oper... | https://en.wikipedia.org/wiki/Mangotoxin |
Mangrove restoration is the regeneration of mangrove forest ecosystems in areas where they have previously existed. Restoration can be defined as "the process of assisting the recovery of an ecosystem that has been degraded, damaged, or destroyed." [ 1 ] Mangroves can be found throughout coastal wetlands of tropical an... | https://en.wikipedia.org/wiki/Mangrove_restoration |
The Manhattan mobility model is a guide which leads the driver of a vehicle on the correct path. It is an urban type of mobility model for vehicular ad-hoc networks (VANET). The Manhattan mobility model uses a " grid road topology. It works optimally where streets are in an organized manner.
In this mobility model, mo... | https://en.wikipedia.org/wiki/Manhattan_mobility_model |
A Manhattan plot is a type of plot , usually used to display data with a large number of data-points, many of non-zero amplitude, and with a distribution of higher-magnitude values. The plot is commonly used in genome-wide association studies (GWAS) to display significant SNPs . [ 1 ]
It gains its name from the simila... | https://en.wikipedia.org/wiki/Manhattan_plot |
A manhole cover is a removable plate forming the lid over the opening of a manhole , an opening large enough for a person to pass through that is used as an access point for an underground vault or pipe. It is designed to prevent anyone or anything from falling in, and to keep out unauthorized persons and material.
Ma... | https://en.wikipedia.org/wiki/Manhole_cover |
The Manhès–David process is a refining process of the copper mattes , invented in 1880 by the French industrialist Pierre Manhès and his engineer Paul David [ fr ] . Inspired by the Bessemer process , it consists of the use of a converter to oxidise with air the undesirable chemical elements (mainly iron and sulfur ) c... | https://en.wikipedia.org/wiki/Manhès–David_process |
In general relativity , a manifestly covariant equation is one in which all expressions are tensors . The operations of addition, tensor multiplication , tensor contraction , raising and lowering indices , and covariant differentiation may appear in the equation. Forbidden terms include but are not restricted to part... | https://en.wikipedia.org/wiki/Manifest_covariance |
In mathematics , the Manin–Drinfeld theorem , proved by Manin ( 1972 ) and Drinfeld ( 1973 ), states that the difference of two cusps of a modular curve has finite order in the Jacobian variety .
This number theory -related article is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/Manin–Drinfeld_theorem |
In mathematics , the arithmetic of abelian varieties is the study of the number theory of an abelian variety , or a family of abelian varieties. It goes back to the studies of Pierre de Fermat on what are now recognized as elliptic curves ; and has become a very substantial area of arithmetic geometry both in terms of ... | https://en.wikipedia.org/wiki/Manin–Mumford_conjecture |
In robot kinematics , the manipulability ellipsoid represents the manipulability of a robotic system in a graphical form. Here, the manipulability of a robot arm refers to its ability to alter the position of the end effector based on the joint configuration. A higher manipulability measure signifies a broader range of... | https://en.wikipedia.org/wiki/Manipulability_ellipsoid |
Manish Chhowalla FREng is a material scientist who has been the Goldsmiths' Professor of Materials Science at the University of Cambridge since 2018. [ 1 ] [ 2 ] In early 2024 he received a £2.5 million grant for his research. [ 3 ] Also that year he was named the editor-in-chief of MRS Energy & Sustainability . [ 4 ] ... | https://en.wikipedia.org/wiki/Manish_Chhowalla |
The Manley–Rowe relations are mathematical expressions developed originally for electrical engineers to predict the amount of energy in a wave that has multiple frequencies. They have since been found to describe systems in non-linear optics , [ 1 ] fluid mechanics and the theory of non-linear dynamical systems , as th... | https://en.wikipedia.org/wiki/Manley–Rowe_relations |
In additive number theory , the Schnirelmann density of a sequence of numbers is a way to measure how "dense" the sequence is. It is named after Russian mathematician Lev Schnirelmann , who was the first to study it. [ 1 ] [ 2 ]
The Schnirelmann density of a set of natural numbers A is defined as
where A ( n ) denote... | https://en.wikipedia.org/wiki/Mann's_theorem |
Mannans are polymers containing the sugar mannose as a principal component. [ 1 ] [ 2 ] They are a type of polysaccharide found in hemicellulose , a major source of biomass found in higher plants such as softwoods. These polymers also typically contain two other sugars, galactose and glucose . They are often branched... | https://en.wikipedia.org/wiki/Mannans |
The Mannheim process is an industrial process for the production of hydrogen chloride and sodium sulfate from sulfuric acid and sodium chloride . [ 1 ] The Mannheim furnace is also used to produce potassium sulfate from potassium chloride . [ 2 ] The Mannheim process is a stage in the Leblanc process for the production... | https://en.wikipedia.org/wiki/Mannheim_process |
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