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The O.E. Meinzer Award is the annual award of the Hydrogeology Division of the Geological Society of America . Established in 1965, it is named after Oscar Edward Meinzer who has been called the "father of modern groundwater hydrology". [ 1 ] The Meinzer award recognizes the author or authors of a publication or body o... | https://en.wikipedia.org/wiki/Meinzer_Award |
Meiobenthos , also called meiofauna , are small benthic invertebrates that live in marine or freshwater environments , or both. The term meiofauna loosely defines a group of organisms by their size—larger than microfauna but smaller than macrofauna —rather than by their taxonomy . This fauna includes both animals that ... | https://en.wikipedia.org/wiki/Meiobenthos |
Meiotic drive is a type of intragenomic conflict , whereby one or more loci within a genome will affect a manipulation of the meiotic process in such a way as to favor the transmission of one or more alleles over another, regardless of its phenotypic expression. More simply, meiotic drive is when one copy of a gene is... | https://en.wikipedia.org/wiki/Meiotic_drive |
A Meisenheimer complex or Jackson–Meisenheimer complex in organic chemistry is a 1:1 reaction adduct between an arene carrying electron withdrawing groups and a nucleophile . These complexes are found as reactive intermediates in nucleophilic aromatic substitution but stable and isolated Meisenheimer salts are also kno... | https://en.wikipedia.org/wiki/Meisenheimer_complex |
The Meissel–Mertens constant (named after Ernst Meissel and Franz Mertens ), also referred to as the Mertens constant , Kronecker's constant (after Leopold Kronecker ), Hadamard–de la Vallée-Poussin constant (after Jacques Hadamard and Charles Jean de la Vallée-Poussin ), or the prime reciprocal constant , is a mathema... | https://en.wikipedia.org/wiki/Meissel–Mertens_constant |
In condensed-matter physics , the Meissner effect (or Meißner–Ochsenfeld effect ) is the expulsion of a magnetic field from a superconductor during its transition to the superconducting state when it is cooled below the critical temperature. This expulsion will repel a nearby magnet .
The German physicists Walther Mei... | https://en.wikipedia.org/wiki/Meissner_effect |
The astronomy of Meitei civilisation deals with celestial objects , space , and the physical universe as a whole.
Meitei language term “Khenchanglon” ( Meitei : ꯈꯦꯟꯆꯪꯂꯣꯟ / ꯈꯦꯟꯆꯡꯂꯣꯟ ) is derived from its ancient Meitei equivalent “Khenchonglon” ( Meitei : ꯈꯦꯟꯆꯣꯡꯂꯣꯟ ), literally meaning "the growing up, evolving or emer... | https://en.wikipedia.org/wiki/Meitei_astronomy |
The Mekong River Commission (MRC) is an "...inter-governmental organisation that works directly with the governments of Cambodia , Laos , Thailand , and Vietnam to jointly manage the shared water resources and the sustainable development of the Mekong River". [ 1 ] Its mission is "To promote and coordinate sustainable ... | https://en.wikipedia.org/wiki/Mekong_River_Commission |
Scale bar, 5.0 μm.
Melainabacteria , also known as Vampirovibrionophyceae, [ 2 ] is a class of bacteria within the phylum Cyanobacteriota . [ 3 ] Vampirovibrio chlorellavorus is the only species of the class that has been grown in cell culture . [ 3 ] Candidatus species of Melainabacteria have been discovered through ... | https://en.wikipedia.org/wiki/Melainabacteria |
Melanie Jane Leng MBE is a Professor of Isotope Geosciences at the University of Nottingham [ 1 ] working on isotopes , palaeoclimate and geochemistry . [ 2 ] [ 3 ] [ 4 ] [ 5 ] She also serves as the Chief Scientist for Environmental Change Adaptation and Resilience at the British Geological Survey and Director of the ... | https://en.wikipedia.org/wiki/Melanie_Leng |
A melanoblast is a precursor cell of a melanocyte . These cells migrate from the trunk neural crest cells (in terms of axial level from neck to posterior end) dorsolaterally between the ectoderm and dorsal surface of the somites . [ 1 ]
This developmental biology article is a stub . You can help Wikipedia by expanding... | https://en.wikipedia.org/wiki/Melanoblast |
The melanocortins are a family of neuropeptide hormones which are the ligands of the melanocortin receptors . [ 1 ] The melanocortin system consists of melanocortin receptors, ligands, and accessory proteins. The genes of the melanocortin system are found in chordates . [ 2 ] Melanocortins were originally named so beca... | https://en.wikipedia.org/wiki/Melanocortin |
A melanomorph is a substance related to the pigment melanin . Melanomorphs originate from the aromatic amino acids tyrosine , tryptophan , and phenylalanine . They tend to absorb ultraviolet -B light, with peaks around 280 nanometers . See also Beer's Law .
This biochemistry article is a stub . You can help Wikipe... | https://en.wikipedia.org/wiki/Melanomorph |
A melanotroph (or melanotrope ) is a cell in the pituitary gland that generates melanocyte-stimulating hormone (α‐MSH) from its precursor pro-opiomelanocortin . Chronic stress can induce the secretion of α‐MSH in melanotrophs and lead to their subsequent degeneration. [ 1 ]
This biochemistry article is a stub . You ca... | https://en.wikipedia.org/wiki/Melanotroph |
A melatonergic agent (or drug ) is a chemical which functions to directly modulate the melatonin system in the body or brain. Examples include melatonin receptor agonists and melatonin receptor antagonists .
This drug article relating to the nervous system is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/Melatonergic |
In mathematics, the Melnikov method is a tool to identify the existence of chaos in a class of dynamical systems under periodic perturbation.
The Melnikov method is used in many cases to predict the occurrence of chaotic orbits in non-autonomous smooth nonlinear systems under periodic perturbation. According to the me... | https://en.wikipedia.org/wiki/Melnikov_distance |
Melomics (derived from "genomics of melodies") is a computational system for the automatic composition of music (with no human intervention), based on bioinspired algorithms. [ 1 ]
Melomics applies an evolutionary approach to music composition, i.e., music pieces are obtained by simulated evolution. These themes compe... | https://en.wikipedia.org/wiki/Melomics |
Melomics109 is a computer cluster located at Universidad de Málaga used to create digital music. It is part of the Spanish Supercomputing Network , and has been designed to increase the computational power provided by Iamus . [ 1 ] [ 2 ] Powered by Melomics ' technology, the composing module of Melomics109 is able to c... | https://en.wikipedia.org/wiki/Melomics109 |
In chemistry , melon is a compound of carbon , nitrogen , and hydrogen of still somewhat uncertain composition, consisting mostly of heptazine units linked and closed by amine groups and bridges ( –NH– , =NH , –NH 2 , etc.). [ 2 ] It is a pale yellow solid, insoluble in most solvents. [ 1 ]
A careful 2001 study indica... | https://en.wikipedia.org/wiki/Melon_(chemistry) |
Melphalan , sold under the brand name Alkeran among others, is a chemotherapy medication used to treat multiple myeloma ; malignant lymphoma ; lymphoblastic and myeloblastic leukemia ; childhood neuroblastoma ; ovarian cancer ; mammary adenocarcinoma ; and uveal melanoma . [ 2 ] [ 3 ] [ 5 ] [ 6 ] It is taken by mouth o... | https://en.wikipedia.org/wiki/Melphalan |
MelsecNet [ 1 ] [ failed verification ] is a protocol developed and supported by Mitsubishi Electric for data delivery. MelsecNet supports 239 networks. [ 2 ]
MelsecNet protocol has two variants. MELSECNET/H and its predecessor MELSECNET/10 use high speed and redundant functionality to give deterministic delivery of l... | https://en.wikipedia.org/wiki/MelsecNet |
Melt blowing is a conventional fabrication method of micro- and nanofibers where a polymer melt is extruded through small nozzles surrounded by high speed blowing gas. The randomly deposited fibers form a nonwoven sheet product applicable for filtration, sorbents, apparels and drug delivery systems. The substantial ben... | https://en.wikipedia.org/wiki/Melt_blowing |
Melt electrospinning is a processing technique to produce fibrous structures from polymer melts for applications that include tissue engineering , textiles and filtration . In general, electrospinning can be performed using either polymer melts or polymer solutions. However, melt electrospinning is distinct in that the... | https://en.wikipedia.org/wiki/Melt_electrospinning |
The Melt Flow Index ( MFI ) is a measure of the ease of flow of the melt of a thermoplastic polymer . It is defined as the mass of polymer, in grams, flowing in ten minutes through a capillary of a specific diameter and length by a pressure applied via prescribed alternative gravimetric weights for alternative prescrib... | https://en.wikipedia.org/wiki/Melt_flow_index |
A melt inclusion is a small parcel or "blobs" of melt(s) that is entrapped by crystals growing [ 1 ] in magma and eventually forming igneous rocks . In many respects it is analogous to a fluid inclusion within magmatic hydrothermal systems. [ 2 ] [ 3 ] Melt inclusions tend to be microscopic in size and can be analyzed ... | https://en.wikipedia.org/wiki/Melt_inclusion |
Melt spinning is a metal forming technique that is typically used to form thin ribbons of metal or alloys with a particular atomic structure. [ 1 ]
Some important commercial applications of melt-spun metals include high-efficiency transformers ( Amorphous metal transformer ), sensory devices, telecommunications equipm... | https://en.wikipedia.org/wiki/Melt_spinning |
Melting , or fusion , is a physical process that results in the phase transition of a substance from a solid to a liquid . This occurs when the internal energy of the solid increases, typically by the application of heat or pressure , which increases the substance's temperature to the melting point . At the melting poi... | https://en.wikipedia.org/wiki/Melting |
Melting-point depression is the phenomenon of reduction of the melting point of a material with a reduction of its size. This phenomenon is very prominent in nanoscale materials , which melt at temperatures hundreds of degrees lower than bulk materials.
The melting temperature of a bulk material is not dependent on it... | https://en.wikipedia.org/wiki/Melting-point_depression |
Melting curve analysis is an assessment of the dissociation characteristics of double-stranded DNA during heating. As the temperature is raised, the double strand begins to dissociate leading to a rise in the absorbance intensity, hyperchromicity . The temperature at which 50% of DNA is denatured is known as the meltin... | https://en.wikipedia.org/wiki/Melting_curve_analysis |
The melting point (or, rarely, liquefaction point ) of a substance is the temperature at which it changes state from solid to liquid . At the melting point the solid and liquid phase exist in equilibrium . The melting point of a substance depends on pressure and is usually specified at a standard pressure such as 1 atm... | https://en.wikipedia.org/wiki/Melting_point |
In the following table, the use row is the value recommended for use in other Wikipedia pages in order to maintain consistency across content.
As quoted at http://www.webelements.com/ from these sources:
Unit is K.
Unit is °C
As quoted from:
Unit is °C
Primordial From decay Synthetic Border shows natural occurren... | https://en.wikipedia.org/wiki/Melting_points_of_the_elements_(data_page) |
Meluadrine ( INN Tooltip International Nonproprietary Name ), also known as meluadrine tartrate ( JAN Tooltip Japanese Accepted Name ; developmental code name HSR-81 ) in the case of the tartrate salt , is a sympathomimetic and β 2 -adrenergic receptor agonist which was studied as a tocolytic drug but was never markete... | https://en.wikipedia.org/wiki/Meluadrine |
Melvin Barnett Comisarow FRSC [ 1 ] is a Canadian physicist and analytical chemist who co-invented the Fourier-transform ion cyclotron resonance technique of Mass spectroscopy , together with Alan G. Marshall , [ 2 ] at the University of British Columbia . Comisarow was born in Alberta to a Ukrainian-Canadian family, a... | https://en.wikipedia.org/wiki/Melvin_Barnett_Comisarow |
The Melvin Mooney Distinguished Technology Award is a professional award conferred by the ACS Rubber Division . Established in 1983, the award is named after Melvin Mooney , developer of the Mooney viscometer and of the Mooney-Rivlin hyperelastic law. The award consists of an engraved plaque and prize money. The med... | https://en.wikipedia.org/wiki/Melvin_Mooney_Distinguished_Technology_Award |
Melzer's reagent (also known as Melzer's iodine reagent , [ 1 ] Melzer's solution or informally as Melzer's ) is a chemical reagent used by mycologists to assist with the identification of fungi , and by phytopathologists for fungi that are plant pathogens . [ 1 ]
Melzer's reagent is an aqueous solution of chloral hyd... | https://en.wikipedia.org/wiki/Melzer's_reagent |
In computing, mem is a measurement unit for the number of memory accesses used or needed by a process, function, instruction set, algorithm or data structure. Mem has applications in computational complexity theory , computing efficiency, combinatorial optimization , supercomputing , computational cost ( algorithmic ef... | https://en.wikipedia.org/wiki/Mem_(computing) |
A membrane is a selective barrier; it allows some things to pass through but stops others. Such things may be molecules , ions , or other small particles. Membranes can be generally classified into synthetic membranes and biological membranes . [ 1 ] Biological membranes include cell membranes (outer coverings of cells... | https://en.wikipedia.org/wiki/Membrane |
Membrane-introduction mass spectrometry (MIMS) is a method of introducing analytes into the mass spectrometer 's vacuum chamber via a semi-permeable membrane . [ 1 ] [ 2 ] Usually a thin, gas-permeable, hydrophobic membrane is used, for example polydimethylsiloxane . Samples can be almost any fluid including water, ai... | https://en.wikipedia.org/wiki/Membrane-introduction_mass_spectrometry |
The elastic membrane analogy , also known as the soap-film analogy , was first published by pioneering aerodynamicist Ludwig Prandtl in 1903. [ 1 ] [ 2 ] It describes the stress distribution on a long bar in torsion . The cross section of the bar is constant along its length, and need not be circular. The differential... | https://en.wikipedia.org/wiki/Membrane_analogy |
Membrane biology is the study of the biological and physiochemical characteristics of membranes , with applications in the study of cellular physiology. [ 1 ]
Membrane bioelectrical impulses are described by the Hodgkin cycle .
Membrane biophysics is the study of biological membrane structure and function using physi... | https://en.wikipedia.org/wiki/Membrane_biology |
Membrane bioreactors are combinations of membrane processes like microfiltration or ultrafiltration with a biological wastewater treatment process, the activated sludge process . These technologies are now widely used for municipal and industrial wastewater treatment . [ 1 ] The two basic membrane bioreactor configurat... | https://en.wikipedia.org/wiki/Membrane_bioreactor |
In cell biology, membrane bound polyribosomes are attached to a cell's endoplasmic reticulum . [ 1 ] When certain proteins are synthesized by a ribosome they can become " membrane-bound ". The newly produced polypeptide chains are inserted directly into the endoplasmic reticulum by the ribosome and are then transported... | https://en.wikipedia.org/wiki/Membrane_bound_polyribosome |
Membrane distillation ( MD ) is a thermally driven separation process in which separation is driven by phase change. A hydrophobic membrane presents a barrier for the liquid phase , allowing the vapour phase (e.g. water vapour) to pass through the membrane's pores. [ 1 ] The driving force of the process is a partial va... | https://en.wikipedia.org/wiki/Membrane_distillation |
A membrane electrode assembly ( MEA ) is an assembled stack of proton-exchange membranes (PEM) or alkali anion exchange membrane (AAEM), catalyst and flat plate electrode used in fuel cells and electrolyzers . [ 1 ] [ 2 ]
The PEM is sandwiched between two electrodes which have the catalyst embedded in them. The electr... | https://en.wikipedia.org/wiki/Membrane_electrode_assembly |
Membrane emulsification (ME) is a relatively novel technique for producing all types of single and multiple emulsions for DDS ( drug delivery systems ), solid micro carriers for encapsulation of drug or nutrient, solder particles for surface-mount technology , mono dispersed polymer microspheres (for analytical column ... | https://en.wikipedia.org/wiki/Membrane_emulsification |
Membrane fouling is a process whereby a solution or a particle is deposited on a membrane surface or in membrane pores in a processes such as in a membrane bioreactor , [ 1 ] reverse osmosis , [ 2 ] forward osmosis , [ 3 ] membrane distillation , [ 4 ] ultrafiltration , microfiltration , or nanofiltration [ 5 ] so that... | https://en.wikipedia.org/wiki/Membrane_fouling |
Gas mixtures can be effectively separated by synthetic membranes made from polymers such as polyamide or cellulose acetate , or from ceramic materials. [ 1 ]
While polymeric membranes are economical and technologically useful, they are bounded by their performance, known as the Robeson limit (permeability must be sacr... | https://en.wikipedia.org/wiki/Membrane_gas_separation |
A membrane osmometer is a device used to indirectly measure the number average molecular weight ( M n {\displaystyle M_{n}} ) of a polymer sample. One chamber contains pure solvent and the other chamber contains a solution in which the solute is a polymer with an unknown M n {\displaystyle M_{n}} . The osmotic pressure... | https://en.wikipedia.org/wiki/Membrane_osmometer |
A membrane oxygenator is a device used to add oxygen to, and remove carbon dioxide from the blood . It can be used in two principal modes: to imitate the function of the lungs in cardiopulmonary bypass (CPB) , and to oxygenate blood in longer term life support, termed extracorporeal membrane oxygenation (ECMO). A memb... | https://en.wikipedia.org/wiki/Membrane_oxygenator |
Membrane potential (also transmembrane potential or membrane voltage ) is the difference in electric potential between the interior and the exterior of a biological cell . It equals the interior potential minus the exterior potential. This is the energy (i.e. work ) per charge which is required to move a (very small) p... | https://en.wikipedia.org/wiki/Membrane_potential |
A membrane reactor is a physical device that combines a chemical conversion process with a membrane separation process to add reactants or remove products of the reaction. [ 1 ]
Chemical reactors making use of membranes are usually referred to as membrane reactors. The membrane can be used for different tasks: [ 2 ]
... | https://en.wikipedia.org/wiki/Membrane_reactor |
Within molecular and cell biology membrane ruffling (also known as cell ruffling ) is the formation of a motile cell surface that contains a meshwork of newly polymerized actin filaments . It can also be regarded as one of the earliest structural changes observed in the cell. The GTP-binding protein Rac is the regulato... | https://en.wikipedia.org/wiki/Membrane_ruffling |
Membrane scaling is when one or more sparingly soluble salts (e.g., calcium carbonate, calcium phosphate, etc.) precipitate and form a dense layer on the membrane surface in reverse osmosis (RO) applications. [ 1 ] Figures 1 and 2 show scanning electron microscopy (SEM) images of the RO membrane surface without and wit... | https://en.wikipedia.org/wiki/Membrane_scaling |
Membrane structures are spatial structures made out of tensioned membranes. The structural use of membranes can be divided into pneumatic structures , tensile membrane structures , and cable domes. In these three kinds of structure, membranes work together with cables, columns and other construction members to find a f... | https://en.wikipedia.org/wiki/Membrane_structure |
Membrane technology encompasses the scientific processes used in the construction and application of membranes. Membranes are used to facilitate the transport or rejection of substances between mediums, and the mechanical separation of gas and liquid streams. In the simplest case, filtration is achieved when the pores ... | https://en.wikipedia.org/wiki/Membrane_technology |
Topology of a transmembrane protein refers to locations of N- and C-termini of membrane-spanning polypeptide chain with respect to the inner or outer sides of the biological membrane occupied by the protein. [ 1 ]
Several databases provide experimentally determined topologies of membrane proteins. They include Uniprot... | https://en.wikipedia.org/wiki/Membrane_topology |
Membranome database provides structural and functional information about more than 6000 single-pass (bitopic) transmembrane proteins from Homo sapiens , Arabidopsis thaliana , Dictyostelium discoideum , Saccharomyces cerevisiae , Escherichia coli and Methanocaldococcus jannaschii . [ 1 ] Bitopic membrane proteins consi... | https://en.wikipedia.org/wiki/Membranome_database |
A memristor ( / ˈ m ɛ m r ɪ s t ər / ; a portmanteau of memory resistor ) is a non-linear two-terminal electrical component relating electric charge and magnetic flux linkage . It was described and named in 1971 by Leon Chua , completing a theoretical quartet of fundamental electrical components which also comprises th... | https://en.wikipedia.org/wiki/Memcapacitor |
A memristor ( / ˈ m ɛ m r ɪ s t ər / ; a portmanteau of memory resistor ) is a non-linear two-terminal electrical component relating electric charge and magnetic flux linkage . It was described and named in 1971 by Leon Chua , completing a theoretical quartet of fundamental electrical components which also comprises th... | https://en.wikipedia.org/wiki/Memductance |
A memex (from " mem ory ex pansion") is a hypothetical electromechanical device for interacting with microform documents and described in Vannevar Bush 's 1945 article " As We May Think ". Bush envisioned the memex as a device in which individuals would compress and store all of their books, records, and communications... | https://en.wikipedia.org/wiki/Memex |
A memristor ( / ˈ m ɛ m r ɪ s t ər / ; a portmanteau of memory resistor ) is a non-linear two-terminal electrical component relating electric charge and magnetic flux linkage . It was described and named in 1971 by Leon Chua , completing a theoretical quartet of fundamental electrical components which also comprises th... | https://en.wikipedia.org/wiki/Meminductor |
Memo motion or spaced-shot photography is a tool of time and motion study that analyzes long operations by using a camera. It was developed 1946 by Marvin E. Mundel at Purdue University , who was first to save film material while planning studies on kitchen work.
Mundel published the method in 1947 with several studie... | https://en.wikipedia.org/wiki/Memo_motion |
In computing , memoization or memoisation is an optimization technique used primarily to speed up computer programs by storing the results of expensive function calls to pure functions and returning the cached result when the same inputs occur again. Memoization has also been used in other contexts (and for purposes o... | https://en.wikipedia.org/wiki/Memoization |
In immunology , a memory B cell ( MBC ) is a type of B lymphocyte that forms part of the adaptive immune system . These cells develop within germinal centers of the secondary lymphoid organs . Memory B cells circulate in the blood stream in a quiescent state, sometimes for decades. [ 1 ] Their function is to memorize t... | https://en.wikipedia.org/wiki/Memory_B_cell |
For computer memory , Memory ProteXion , found in IBM xSeries servers, is a form of " redundant bit steering ". This technology uses redundant bits in a data packet to recover from a DIMM failure.
Memory ProteXion is different from normal ECC error correction in that it uses only 6 bits for ECC, leaving 2 bits behind.... | https://en.wikipedia.org/wiki/Memory_ProteXion |
Memory T cells are a subset of T lymphocytes that might have some of the same functions as memory B cells . Their lineage is unclear.
Antigen -specific memory T cells specific to viruses or other microbial molecules can be found in both central memory T cells (T CM ) and effector memory T cells (T EM ) subsets. Althou... | https://en.wikipedia.org/wiki/Memory_T_cell |
Memory T cell inflation phenomenon is the formation and maintenance of a large population of specific CD8+ T cells in reaction to cytomegalovirus (CMV) infection. [ 1 ] [ 2 ] [ 3 ] [ 4 ]
CMV is a worldwide type of virus which affects 60-80 % of the human population in developed countries. The virus is spread through s... | https://en.wikipedia.org/wiki/Memory_T_cell_inflation |
Age-related memory loss , sometimes described as "normal aging " (also spelled "ageing" in British English ), is qualitatively different from memory loss associated with types of dementia such as Alzheimer's disease , and is believed to have a different brain mechanism. [ 1 ]
Mild cognitive impairment (MCI) is a condi... | https://en.wikipedia.org/wiki/Memory_and_aging |
Memory architecture describes the methods used to implement electronic computer data storage in a manner that is a combination of the fastest, most reliable, most durable, and least expensive way to store and retrieve information. Depending on the specific application, a compromise of one of these requirements may be n... | https://en.wikipedia.org/wiki/Memory_architecture |
The memory cell is the fundamental building block of computer memory . The memory cell is an electronic circuit that stores one bit of binary information and it must be set to store a logic 1 ( high voltage level) and reset to store a logic 0 (low voltage level). Its value is maintained/stored until it is changed by th... | https://en.wikipedia.org/wiki/Memory_cell_(computing) |
Memory corruption occurs in a computer program when the contents of a memory location are modified due to programmatic behavior that exceeds the intention of the original programmer or program/language constructs; this is termed as violation of memory safety . The most likely causes of memory corruption are programming... | https://en.wikipedia.org/wiki/Memory_corruption |
Memory erasure is the selective artificial removal of memories or associations from the mind .
Memory erasure has been shown to be possible in some experimental conditions; some of the techniques currently being investigated are: drug-induced amnesia , selective memory suppression, destruction of neurons , interruptio... | https://en.wikipedia.org/wiki/Memory_erasure |
Memory foam consists mainly of polyurethane with additional chemicals that increase its viscosity and density . It is often referred to as " viscoelastic " polyurethane foam, or low-resilience polyurethane foam ( LRPu ). The foam bubbles or 'cells' are open, effectively creating a matrix through which air can move. Hig... | https://en.wikipedia.org/wiki/Memory_foam |
Memory improvement is the act of enhancing one's memory. Factors motivating research on improving memory include conditions such as amnesia , age-related memory loss , people’s desire to enhance their memory, and the search to determine factors that impact memory and cognition . There are different techniques to improv... | https://en.wikipedia.org/wiki/Memory_improvement |
Memory of Mankind on the Moon [ 1 ] was a time capsule that was launched onboard Astrobotic Technology's Peregrine lander . [ 2 ] [ 3 ] It was made in collaboration with Hungarian company Puli Space Technologies [ 4 ] [ 5 ] and Memory of Mankind .
This space - or spaceflight -related article is a stub . You can help W... | https://en.wikipedia.org/wiki/Memory_of_Mankind_on_the_Moon |
Memory operations per second or MOPS is a metric for an expression of the performance capacity of semiconductor memory . It can also be used to determine the efficiency of RAM in the Windows operating environment . [ 1 ] [ 2 ] MOPS can be affected by multiple applications being open at once without adequate job schedul... | https://en.wikipedia.org/wiki/Memory_operations_per_second |
Memory transfer was a biological process proposed by James V. McConnell and others in the 1960s. Memory transfer proposes a chemical basis for memory termed memory RNA which can be passed down through flesh instead of an intact nervous system. Since RNA encodes information [ 1 ] and living cells produce and modify RNA ... | https://en.wikipedia.org/wiki/Memory_transfer |
In probability and statistics , memorylessness is a property of probability distributions . It describes situations where previous failures or elapsed time does not affect future trials or further wait time. Only the geometric and exponential distributions are memoryless.
A random variable X {\displaystyle X} is memor... | https://en.wikipedia.org/wiki/Memorylessness |
A memristor ( / ˈ m ɛ m r ɪ s t ər / ; a portmanteau of memory resistor ) is a non-linear two-terminal electrical component relating electric charge and magnetic flux linkage . It was described and named in 1971 by Leon Chua , completing a theoretical quartet of fundamental electrical components which also comprises th... | https://en.wikipedia.org/wiki/Memristance |
Menaechmus ( Greek : Μέναιχμος , c. 380 – c. 320 BC) was an ancient Greek mathematician , geometer and philosopher [ 1 ] born in Alopeconnesus or Prokonnesos in the Thracian Chersonese , who was known for his friendship with the renowned philosopher Plato and for his apparent discovery of conic sections and his solutio... | https://en.wikipedia.org/wiki/Menaechmus |
Menarche ( / m ə ˈ n ɑːr k i / mə- NAR -kee ; from Ancient Greek μήν (mēn) ' month ' and ἀρχή (arkhē) ' beginning ' ) is the first menstrual cycle , or first menstrual bleeding , in female humans . From both social and medical perspectives, it is often considered the central event of female puberty , as it signals the ... | https://en.wikipedia.org/wiki/Menarche |
A Mendelian error in the genetic analysis of a species, describes an allele in an individual which could not have been received from either of its biological parents by Mendelian inheritance . Inheritance is defined by a set of related individuals who have the same or similar phenotypes for a locus of a particular gen... | https://en.wikipedia.org/wiki/Mendelian_error |
In Euclidean geometry , Menelaus's theorem , named for Menelaus of Alexandria , is a proposition about triangles in plane geometry . Suppose we have a triangle △ ABC , and a transversal line that crosses BC, AC, AB at points D, E, F respectively, with D, E, F distinct from A, B, C . A weak version of the theorem states... | https://en.wikipedia.org/wiki/Menelaus's_theorem |
Meng Huo You ( Chinese : 猛火油 ; pinyin : měng huǒ yóu ; lit. 'fierce-fire oil') [1] is the name given to petroleum in ancient China , which practiced the use of petroleum as an incendiary weapon in warfare.
During the Eastern Han dynasty , the Chinese historian and poet Ban Gu recorded in the geography section of his B... | https://en.wikipedia.org/wiki/Meng_Huo_You |
In mathematics, a Menger space is a topological space that satisfies a certain basic selection principle that generalizes σ-compactness . A Menger space is a space in which for every sequence of open covers U 1 , U 2 , … {\displaystyle {\mathcal {U}}_{1},{\mathcal {U}}_{2},\ldots } of the space there are finite sets F ... | https://en.wikipedia.org/wiki/Menger_space |
Meniscal cyst is a well-defined cystic lesion located along the peripheral margin of the meniscus , a part of the knee, nearly always associated with horizontal meniscal tears .
Pain and swelling or focal mass at the level of the joint. The pain may be related to a meniscal tear or distension of the knee capsule or bo... | https://en.wikipedia.org/wiki/Meniscal_cyst |
The Menke nitration is the nitration of electron rich aromatic compounds with cupric nitrate and acetic anhydride . The reaction introduces the nitro group predominantly in the ortho position to the activation group. [ 1 ] It may proceed via the intermediary of acetyl nitrate . The reaction is named after the Dutch ch... | https://en.wikipedia.org/wiki/Menke_nitration |
Menopause , also known as the climacteric , is the time when menstrual periods permanently stop, marking the end of the reproductive stage for the female human. [ 1 ] [ 4 ] [ 5 ] It typically occurs between the ages of 45 and 55, although the exact timing can vary. [ 6 ] Menopause is usually a natural change related to... | https://en.wikipedia.org/wiki/Menopause |
In organic chemistry , the Menshutkin reaction converts a tertiary amine into a quaternary ammonium salt by reaction with an alkyl halide . Similar reactions occur when tertiary phosphines are treated with alkyl halides.
The reaction is the method of choice for the preparation of quaternary ammonium salts. [ 1 ] Some ... | https://en.wikipedia.org/wiki/Menshutkin_reaction |
Menstruation is the shedding of the uterine lining ( endometrium ). It occurs on a regular basis in uninseminated [ 1 ] sexually reproductive-age females of certain mammal species.
Although there is some disagreement in definitions between sources, menstruation is generally considered to be limited to primates . It i... | https://en.wikipedia.org/wiki/Menstruation_(mammal) |
The mental model theory of reasoning was developed by Philip Johnson-Laird and Ruth M.J. Byrne (Johnson-Laird and Byrne, 1991). It has been applied to the main domains of deductive inference including relational inferences such as spatial and temporal deductions; propositional inferences, such as conditional, disjuncti... | https://en.wikipedia.org/wiki/Mental_model_theory_of_reasoning |
Mentat Portable Streams ( MPS ) was a platform independent implementation of the UNIX System V STREAMS networking protocol stack , normally sold with the Mentat TCP stack providing TCP/IP support. Portable Streams was used in a number of commercial products, including Apple Computer 's Open Transport , AIX , VxWorks , ... | https://en.wikipedia.org/wiki/Mentat_Portable_Streams |
This page provides supplementary chemical data on Menthol .
The handling of this chemical may incur notable safety precautions. It is highly recommended that you seek the Material Safety Datasheet ( MSDS ) for this chemical from a reliable source such as SIRI or the links below, and follow its directions. | https://en.wikipedia.org/wiki/Menthol_(data_page) |
Independence of irrelevant alternatives ( IIA ) is an axiom of decision theory which codifies the intuition that a choice between A {\displaystyle A} and B {\displaystyle B} (which are both related) should not depend on the quality of a third, unrelated outcome C {\textstyle C} . There are several different variations ... | https://en.wikipedia.org/wiki/Menu_dependence |
Meprin A ( EC 3.4.24.18 , endopeptidase-2 , meprin-a , meprin , N-benzoyl-L-tyrosyl-p-aminobenzoic acid hydrolase , PABA-peptide hydrolase , PPH ) is an enzyme that cleaves protein and peptide substrates preferentially on carboxyl side of hydrophobic residues. [ 1 ] This metalloprotease can be associated with inflammat... | https://en.wikipedia.org/wiki/Meprin_A |
In mathematics , the Mercator series or Newton–Mercator series is the Taylor series for the natural logarithm :
In summation notation ,
The series converges to the natural logarithm (shifted by 1) whenever − 1 < x ≤ 1 {\displaystyle -1<x\leq 1} .
The series was discovered independently by Johannes Hudde (1656) [ 1 ]... | https://en.wikipedia.org/wiki/Mercator_series |
The Mercedes-Benz Bionic is a concept car created by DaimlerChrysler AG under the Mercedes Group. It was first introduced in 2005 at the DaimlerChrysler Innovation Symposium in Washington, D. C. The Bionic is modeled after the yellow boxfish , Ostracion cubicus , [ 1 ] and has 80% lower nitrogen oxide emissions with it... | https://en.wikipedia.org/wiki/Mercedes-Benz_Bionic |
Mercedes Pascual is an Uruguayan theoretical ecologist , [ 1 ] and a Professor in the Department of Ecology and Evolution at the University of Chicago , where she leads the Laboratory for Modeling and Theory in Ecology and Epidemiology (MATE). [ 2 ] [ 3 ] She was previously the Rosemary Grant Collegiate Professor at th... | https://en.wikipedia.org/wiki/Mercedes_Pascual |
A merchant's mark is an emblem or device adopted by a merchant, and placed on goods or products sold by him in order to keep track of them, or as a sign of authentication. It may also be used as a mark of identity in other contexts.
Merchants' marks are as old as the sealings of the third millennium BCE found in Sumer... | https://en.wikipedia.org/wiki/Merchant's_mark |
The Merck Index is an encyclopedia of chemicals , drugs and biologicals with over 10,000 monographs on single substances or groups of related compounds [ 1 ] published online by the Royal Society of Chemistry . [ 2 ]
The first edition of the Merck's Index was published in 1889 by the German chemical company Emanuel Me... | https://en.wikipedia.org/wiki/Merck_Index |
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