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In engineering , a mechanism is a device that transforms input forces and movement into a desired set of output forces and movement. Mechanisms generally consist of moving components which may include Gears and gear trains ; Belts and chain drives ; cams and followers ; Linkages ; Friction devices, such as brakes or cl... | https://en.wikipedia.org/wiki/Mechanism_(engineering) |
In pharmacology , the term mechanism of action ( MOA ) refers to the specific biochemical interaction through which a drug substance produces its pharmacological effect . [ 2 ] A mechanism of action usually includes mention of the specific molecular targets to which the drug binds, such as an enzyme or receptor . [ 3 ]... | https://en.wikipedia.org/wiki/Mechanism_of_action |
Sonoluminescence is a phenomenon that occurs when a small gas bubble is acoustically suspended and periodically driven in a liquid solution at ultrasonic frequencies, resulting in bubble collapse, cavitation , and light emission. The thermal energy that is released from the bubble collapse is so great that it can cause... | https://en.wikipedia.org/wiki/Mechanism_of_sonoluminescence |
Mindfulness has been defined in modern psychological terms as "paying attention to relevant aspects of experience in a nonjudgmental manner", [ 1 ] and maintaining attention on present moment experience with an attitude of openness and acceptance. [ 2 ] Meditation is a platform used to achieve mindfulness. Both practic... | https://en.wikipedia.org/wiki/Mechanisms_of_mindfulness_meditation |
Mechanobiology is an emerging field of science at the interface of biology, engineering, chemistry and physics. It focuses on how physical forces and changes in the mechanical properties of cells and tissues contribute to development, cell differentiation, physiology , and disease. Mechanical forces are experienced and... | https://en.wikipedia.org/wiki/Mechanobiology |
Mechanochromic luminescence (ML) references to intensity and/or color changes of (solid-state) luminescent materials induced by mechanical forces, such as rubbing, crushing, pressing, shearing, or smearing. Unlike " triboluminescence " which does not require additional excitation source other than force itself, ML is o... | https://en.wikipedia.org/wiki/Mechanochromic_luminescence |
The change of colour which occurs when chemicals are put under stress in the solid state by mechanical grinding, crushing and milling; by friction and rubbing; or in the solid or solution state by high pressure or sonication is covered by the generic term mechanochromism . Specifically colour change under pressure is k... | https://en.wikipedia.org/wiki/Mechanochromism |
Mechanoluminescence is light emission resulting from any mechanical action on a solid. It can be produced through ultrasound, or through other means. | https://en.wikipedia.org/wiki/Mechanoluminescence |
Mechanophilia (or mechaphilia [ 1 ] ) is a paraphilia involving a sexual attraction to machines such as bicycles, motorcycles, [ 2 ] cars, [ 3 ] [ 4 ] helicopters, [ 5 ] and airplanes. [ 6 ]
Mechanophilia is treated as a crime in some nations with perpetrators being placed on a sex-offenders' register after prosecutio... | https://en.wikipedia.org/wiki/Mechanophilia |
The Mechanostat is a term describing the way in which mechanical loading influences bone structure by changing the mass (amount of bone) and architecture (its arrangement) to provide a structure that resists habitual loads with an economical amount of material. As changes in the skeleton are accomplished by the process... | https://en.wikipedia.org/wiki/Mechanostat |
Mechanosynthesis is a term for hypothetical chemical syntheses in which reaction outcomes are determined by the use of mechanical constraints to direct reactive molecules to specific molecular sites. There are presently no non-biological chemical syntheses which achieve this aim. Some atomic placement has been achieved... | https://en.wikipedia.org/wiki/Mechanosynthesis |
In cellular biology , mechanotransduction ( mechano + transduction ) is any of various mechanisms by which cells convert mechanical stimulus into electrochemical activity. [ 1 ] [ 2 ] [ 3 ] [ 4 ] This form of sensory transduction is responsible for a number of senses and physiological processes in the body, including p... | https://en.wikipedia.org/wiki/Mechanotransduction |
Mecillinam ( INN ) or amdinocillin ( USAN ) is an extended-spectrum penicillin antibiotic of the amidinopenicillin class that binds specifically to penicillin binding protein 2 (PBP2), [ 2 ] and is only considered to be active against Gram-negative bacteria . It is used primarily in the treatment of urinary tract infec... | https://en.wikipedia.org/wiki/Mecillinam |
The Mecke reagent is used as a simple spot-test to presumptively identify alkaloids as well as other compounds. It is composed of a mixture of selenous acid and concentrated sulfuric acid , [ 1 ] which is dripped onto the substance being tested.
The United States Department of Justice method for producing the reagent ... | https://en.wikipedia.org/wiki/Mecke_reagent |
The Meco-Moore cutter loader was an early twentieth-century British mining machine. It was invented by Mr M. Moore, and developed by the Mining Engineering Company (MECO) of Worcester . It was a heavy machine (120 hp / 89.5 kW) and was first used in a coal mine in Lancashire, England 1934. [ 1 ] The design was such tha... | https://en.wikipedia.org/wiki/Meco-Moore_Cutter_Loader |
MedChemComm (in full: Medicinal Chemistry Communications ) is a peer-reviewed scientific journal publishing original (primary) research and review articles on all aspects of medicinal chemistry , including drug discovery , pharmacology and pharmaceutical chemistry . Until December 2019, it was published monthly by the ... | https://en.wikipedia.org/wiki/MedChemComm |
The Medal "For the Tapping of the Subsoil and Expansion of the Petrochemical Complex of Western Siberia" ( Russian : Медаль «За освоение недр и развитие нефтегазового комплекса Западной Сибири» ) was a civilian award of the Soviet Union established on July 28, 1978 by Decree of the Presidium of the Supreme Soviet of th... | https://en.wikipedia.org/wiki/Medal_"For_the_Tapping_of_the_Subsoil_and_Expansion_of_the_Petrochemical_Complex_of_Western_Siberia" |
The Medea hypothesis is a term coined by paleontologist Peter Ward [ 1 ] for a hypothesis that contests the Gaian hypothesis and proposes that multicellular life , understood as a superorganism , may be self-destructive or suicidal.
The metaphor refers to the mythological Medea (representing the Earth), who kills her o... | https://en.wikipedia.org/wiki/Medea_hypothesis |
Media Independent Handover ( MIH ) is a standard being developed by IEEE 802.21 to enable the handover of IP sessions from one layer 2 access technology to another, to achieve mobility of end user devices (MIH).
The importance of MIH derives from the fact that a diverse range of broadband wireless access technologies ... | https://en.wikipedia.org/wiki/Media-independent_handover |
Media on demand (MOD) is a new generation of video on demand which not only allows users to watch and listen to audio and video content such as movies and TV shows, but also provides facilities including real-time information, interactive games, attractions guidance, route information, advertising systems, and services... | https://en.wikipedia.org/wiki/Media-on-demand |
MediaFLO was a technology developed by Qualcomm for transmitting audio, video and data to portable devices such as mobile phones and personal televisions, used for mobile television . Qualcomm operated a mobile pay television service, FLO TV , from 2007 to 2011 using this technology.
Broadcast data transmitted via Med... | https://en.wikipedia.org/wiki/MediaFLO |
The Media Object Server ( MOS ) protocol allows newsroom computer systems (NRCS) to communicate using a standard protocol with video servers , audio servers , still stores , and character generators for broadcast production. [ 1 ] [ 2 ]
The MOS protocol is based on XML . [ 3 ] It enables the exchange of the following ... | https://en.wikipedia.org/wiki/Media_Object_Server |
Media Redundancy Protocol ( MRP ) is a data network protocol standardized by the International Electrotechnical Commission as IEC 62439-2. It allows rings of Ethernet switches to overcome any single failure with recovery time much faster than achievable with Spanning Tree Protocol . [ 1 ] It is suitable to most industr... | https://en.wikipedia.org/wiki/Media_Redundancy_Protocol |
In digital electronics , analogue electronics and entertainment , the user interface may include media controls , transport controls or player controls , to enact and change or adjust the process of video playback, audio playback, and alike. These controls are commonly depicted as widely known symbols found in a multit... | https://en.wikipedia.org/wiki/Media_control_symbols |
A media filter is a type of filter that uses a bed of sand , peat , shredded tires, foam, crushed glass, geo-textile fabric, anthracite , crushed granite or other material to filter water for drinking, swimming pools , aquaculture , irrigation , stormwater management, oil and gas operations, and other applications.
Ea... | https://en.wikipedia.org/wiki/Media_filter |
Media player software is a type of application software for playing multimedia computer files like audio and video files. Media players commonly display standard media control icons known from physical devices such as tape recorders and CD players , such as play ( ), pause ( ), fastforward (⏩️), rewind (⏪), and stop ( ... | https://en.wikipedia.org/wiki/Media_player_software |
A media server is a computer appliance or an application software that stores digital media (video, audio or images) and makes it available over a network.
Media servers range from servers that provide video on demand to smaller personal computers or NAS (Network Attached Storage) for the home.
By definition, a media... | https://en.wikipedia.org/wiki/Media_server |
In geometry , a median of a triangle is a line segment joining a vertex to the midpoint of the opposite side, thus bisecting that side. Every triangle has exactly three medians, one from each vertex, and they all intersect at the triangle's centroid . In the case of isosceles and equilateral triangles, a median bisects... | https://en.wikipedia.org/wiki/Median_(geometry) |
The Median Wall was a wall built to the north of the ancient city of Babylon at a point where the distance between the rivers Tigris and Euphrates decreases considerably. It was believed to have been constructed during the latter part of the reign of Nebuchadrezzar II and to have consisted of baked brick and bitumen , ... | https://en.wikipedia.org/wiki/Median_Wall |
Median aerodynamic diameter ( MAD ) is one of two parameters influencing the deposition of inhaled particles, the other being the geometric standard deviation of the particle size distribution. The MAD is the value of aerodynamic diameter for which 50% of some quantity in a given aerosol is associated with particles sm... | https://en.wikipedia.org/wiki/Median_aerodynamic_diameter |
In toxicology , the median lethal dose , LD 50 (abbreviation for " lethal dose , 50%"), LC 50 (lethal concentration, 50%) or LCt 50 is a toxic unit that measures the lethal dose of a given substance . [ 1 ] The value of LD 50 for a substance is the dose required to kill half the members of a tested population after a s... | https://en.wikipedia.org/wiki/Median_lethal_dose |
In toxicology , the median toxic dose ( TD 50 ) of a drug or toxin is the dose at which toxicity occurs in 50% of cases. [ 1 ] : 73 The type of toxicity should be specified for this value to have meaning for practical purposes. The median toxic dose encompasses the category of toxicity that is greater than half maximum... | https://en.wikipedia.org/wiki/Median_toxic_dose |
Condorcet methods
Positional voting
Cardinal voting
Quota-remainder methods
Approval-based committees
Fractional social choice
Semi-proportional representation
By ballot type
Pathological response
Strategic voting
Paradoxes of majority rule
Positive results
In political science and social choice , the media... | https://en.wikipedia.org/wiki/Median_voter_theorem |
In mathematics , the mediant of two fractions , generally made up of four positive integers
That is to say, the numerator and denominator of the mediant are the sums of the numerators and denominators of the given fractions, respectively. It is sometimes called the freshman sum , as it is a common mistake in the early... | https://en.wikipedia.org/wiki/Mediant_(mathematics) |
Mediated transport refers to cellular transport mediated at the lipid bilayer through phospholipid interactions, or more frequently membrane transport proteins . Substances in the human body may be hydrophobic , electrophilic , contain a positively or negatively charge, or have another property. As such there are times... | https://en.wikipedia.org/wiki/Mediated_transport |
In the scale-free network theory ( mathematical theory of networks or graph theory ), a mediation-driven attachment (MDA) model appears to embody a preferential attachment rule tacitly rather than explicitly. According to MDA rule, a new node first picks a node from the existing network at random and connect itself not... | https://en.wikipedia.org/wiki/Mediation-driven_attachment_model |
Mediator is a multiprotein complex that functions as a transcriptional coactivator in all eukaryotes . It was discovered in 1990 in the lab of Roger D. Kornberg , recipient of the 2006 Nobel Prize in Chemistry . [ 1 ] [ 2 ] Mediator [ a ] complexes interact with transcription factors and RNA polymerase II . The main fu... | https://en.wikipedia.org/wiki/Mediator_(coactivator) |
Medicago Inc. was a Canadian biotechnology company focused on the discovery, development, and commercialization of virus-like particles using plants as bioreactors to produce proteins, candidate vaccines , and medications . By using live plant leaves as hosts in the discovery and manufacturing process, the Medicago " P... | https://en.wikipedia.org/wiki/Medicago_Inc. |
Medical Devices Park, Hyderabad is a medical devices industrial estate located in Hyderabad , Telangana , India . [ 1 ] The largest such Park in India spread over 250 acres. [ 2 ] [ 3 ] The dedicated park's ecosystem supports medical technology innovation and manufacturing.
The Park was inaugurated on 17 June 2017 nea... | https://en.wikipedia.org/wiki/Medical_Devices_Park,_Hyderabad |
The Medical Waste Tracking Act of 1988 was a United States federal law concerning the illegal dumping of body tissues, blood wastes and other contaminated biological materials. It established heavy penalties for knowingly endangering life through noncompliance. The law expired in 1991.
The law created a two-year progr... | https://en.wikipedia.org/wiki/Medical_Waste_Tracking_Act |
Medical biology is a field of biology that has practical applications in medicine , health care , and laboratory diagnostics . It includes many biomedical disciplines and areas of specialty that typically contains the "bio-" prefix such as:
Medical biology is the cornerstone of modern health care and laboratory diagno... | https://en.wikipedia.org/wiki/Medical_biology |
The medical examiner is an appointed official in some American jurisdictions [ 1 ] who is trained in pathology and investigates deaths that occur under unusual or suspicious circumstances, to perform post-mortem examinations , and in some jurisdictions to initiate inquests . [ 2 ] [ 3 ]
In the US, there are two death ... | https://en.wikipedia.org/wiki/Medical_examiner |
Medical gas supply systems in hospitals and other healthcare facilities are utilized to supply specialized gases and gas mixtures to various parts of the facility. Products handled by such systems typically include:
Source equipment systems are generally required to be monitored by alarm systems at the point of supply... | https://en.wikipedia.org/wiki/Medical_gas_supply |
Medical gas therapy is a treatment involving the administration of various gases. It has been used in medicine since the use of oxygen therapy . [ 1 ] Most of these gases are drugs, including oxygen. [ 2 ] Many other gases, collectively known as factitious airs , were explored for medicinal value in the late eighteenth... | https://en.wikipedia.org/wiki/Medical_gas_therapy |
Medical geology is an interdisciplinary scientific field studying the relationship between natural geological factors and their effects on human and animal health . [ 1 ] The Commission on Geological Sciences for Environmental Planning defines medical geology as "the science dealing with the influence of ordinary envir... | https://en.wikipedia.org/wiki/Medical_geology |
Medical gowns are hospital gowns worn by medical professionals as personal protective equipment (PPE) in order to provide a barrier between patient and professional. Whereas patient gowns are flimsy often with exposed backs and arms, PPE gowns, as seen below in the cardiac surgeon photograph, cover most of the exposed ... | https://en.wikipedia.org/wiki/Medical_gown |
The Medical Intelligence and Language Engineering Laboratory , also known as the MILE lab , is a research laboratory at the Indian Institute of Science , Bangalore under the Department of Electrical Engineering. The lab is known for its work on Image processing , online handwriting recognition , Text-To-Speech and Opti... | https://en.wikipedia.org/wiki/Medical_intelligence_and_language_engineering_lab |
A medical laboratory or clinical laboratory is a laboratory where tests are conducted out on clinical specimens to obtain information about the health of a patient to aid in diagnosis, treatment, and prevention of disease. [ 1 ] Clinical medical laboratories are an example of applied science , as opposed to research la... | https://en.wikipedia.org/wiki/Medical_laboratory |
A medical oddity is an unusual predicament or event which takes place in a medical context. Some examples of medical oddities might include: "lost and found" surgical instruments (in the body), grotesquely oversized tumors , (human) male pregnancy , rare or " orphan " illnesses, rare allergies (such as to water ), str... | https://en.wikipedia.org/wiki/Medical_oddity |
Medical physics [ 1 ] deals with the application of the concepts and methods of physics to the prevention, diagnosis and treatment of human diseases with a specific goal of improving human health and well-being. [ 2 ] Since 2008, medical physics has been included as a health profession according to International Standa... | https://en.wikipedia.org/wiki/Medical_physics |
A prescription , often abbreviated ℞ or Rx , is a formal communication from physicians or other registered healthcare professionals to a pharmacist , authorizing them to dispense a specific prescription drug for a specific patient. Historically, it was a physician's instruction to an apothecary listing the materials to... | https://en.wikipedia.org/wiki/Medical_prescription |
Medical technology assessment (MTA) is the objective evaluation of a medical technology regarding its safety and performance, its (future) impact on clinical and non-clinical patient outcomes as well as its interactive effects on economical, organizational, social, juridical and ethical aspects of healthcare. Medical t... | https://en.wikipedia.org/wiki/Medical_technology_assessment |
A medical test is a medical procedure performed to detect , diagnose , or monitor diseases, disease processes, susceptibility, or to determine a course of treatment. Medical tests such as, physical and visual exams, diagnostic imaging , genetic testing, chemical and cellular analysis, relating to clinical chemistry and... | https://en.wikipedia.org/wiki/Medical_test |
Medical toxicology is a subspecialty of medicine focusing on toxicology and providing the diagnosis , management , and prevention of poisoning and other adverse effects due to medications , occupational and environmental toxicants, and biological agents. [ 1 ] Medical toxicologists are involved in the assessment and tr... | https://en.wikipedia.org/wiki/Medical_toxicology |
Medication (also called medicament , medicine , pharmaceutical drug , medicinal product , medicinal drug or simply drug ) is a drug used to diagnose , cure , treat, or prevent disease. [ 1 ] [ 2 ] Drug therapy ( pharmacotherapy ) is an important part of the medical field and relies on the science of pharmacology for co... | https://en.wikipedia.org/wiki/Medication |
Medication therapy management , generally called medicine use review in the United Kingdom, is a service provided typically by pharmacists , medical affairs , and RWE scientists that aims to improve outcomes by helping people to better understand their health conditions and the medications used to manage them. [ 1 ] Th... | https://en.wikipedia.org/wiki/Medication_therapy_management |
Medicinal Chemistry Research is a peer-reviewed scientific journal of medicinal chemistry emphasizing the structure-activity relationships of biologically active compounds. [ 1 ] It was founded in 1991 by Alfred Burger ( University of Virginia ), who also founded the Journal of Medicinal Chemistry . [ 2 ] The journal i... | https://en.wikipedia.org/wiki/Medicinal_Chemistry_Research |
Medicinal Research Reviews is a bimonthly peer-reviewed scientific journal that publishes reviews on topics related to medicinal research. It is published by Wiley and was established in 1980. [ 1 ] The editor-in-chief is Amanda E. Hargrove ( Duke University ). [ 2 ]
The journal publishes critical reviews of topics in... | https://en.wikipedia.org/wiki/Medicinal_Research_Reviews |
Medicinal or pharmaceutical chemistry is a scientific discipline at the intersection of chemistry and pharmacy involved with designing and developing pharmaceutical drugs . Medicinal chemistry involves the identification, synthesis and development of new chemical entities suitable for therapeutic use. It also includes ... | https://en.wikipedia.org/wiki/Medicinal_chemistry |
The modern Medicine Wheel symbol was invented as a teaching tool in about 1972 by Charles Storm, aka Arthur C. Storm, writing under the name Hyemeyohsts Storm , in his book Seven Arrows and further expanded upon in his book Lightningbolt . [ 1 ] [ 2 ] : 5,168 It has since been used by various people to symbolize a vari... | https://en.wikipedia.org/wiki/Medicine_wheel_(symbol) |
The Medicines Discovery Catapult ( MDC ) is the United Kingdom's catapult centre for medicine research and innovation, headquartered at Alderley Park in Cheshire .
The intention to form the company was announced by the Chancellor on 13 July 2015 with funding of £5m, on a visit to Cheshire. It would be part of the Nort... | https://en.wikipedia.org/wiki/Medicines_Discovery_Catapult |
Medicon Valley is a leading international life-sciences cluster in Europe , spanning the Øresund Region of eastern Denmark and southern Sweden . It is one of Europe's strongest life science clusters, with many life science companies and research institutions located within a relatively small geographical area. The name... | https://en.wikipedia.org/wiki/Medicon_Valley |
Medicon Valley Alliance (or MVA for short) is the Danish - Swedish cluster organisation representing human life sciences in the cross-border region of Medicon Valley . As a non-profit member organisation, Medicon Valley Alliance (MVA) carries out initiatives on behalf of the local life science community in order to cre... | https://en.wikipedia.org/wiki/Medicon_Valley_Alliance |
Medio is a business-to-business mobile web analytics provider based in Seattle , Washington. The company processes pre-existing data [ 2 ] to provide historic and predictive analytics . Medio is built on a cloud-based [ 3 ] Hadoop platform and is designed to interpret big data for mobile enterprise. Medio has had partn... | https://en.wikipedia.org/wiki/Medio_(company) |
Medipix is a family of photon counting and particle tracking pixel detectors developed by an international collaboration, hosted by CERN . [ 1 ]
These are hybrid detectors as a semiconductor sensor layer is bonded to a processing electronics layer.
The sensor layer is a semiconductor, such as silicon , GaAs , or CdTe... | https://en.wikipedia.org/wiki/Medipix |
The Mediterranean Biogeographic Region is the biogeographic region around and including the Mediterranean Sea .
The term is defined by the European Environment Agency as applying to the land areas of Europe that border on the Mediterranean Sea, and the corresponding territorial waters.
The region is rich in biodiversit... | https://en.wikipedia.org/wiki/Mediterranean_Biogeographic_Region |
Medivir is a Swedish biotech company. [ 1 ] Medivir focuses its research focus on oncology and particularly on innovative pharmaceuticals that meet substantial unmet medical needs. The pharmaceutical development work is conducted both in-house and through partnerships, usually with global pharmaceutical companies.
Med... | https://en.wikipedia.org/wiki/Medivir |
Medlar bodies , also known as sclerotic or muriform cells , are thick-walled cells (5–12 microns) with multiple internal transverse septa or chambers that resemble copper pennies . When present in skin or subcutaneous tissue , the cells are indicative of chromoblastomycosis . [ 1 ] [ 2 ] [ 3 ]
This article related to... | https://en.wikipedia.org/wiki/Medlar_bodies |
The Medog Hydropower Station ( Chinese : 墨脱水电站 ) [ 1 ] or Motuo Hydropower Station [ 2 ] is a planned 60,000 megawatt (MW) hydroelectric dam project under development on the Yarlung Tsangpo river in Tibet Autonomous Region , China . Upon completion, it will become the world's largest hydropower facility , with an antic... | https://en.wikipedia.org/wiki/Medog_Hydropower_Station |
Medsafe , the New Zealand Medicines and Medical Devices Safety Authority , is the medical regulatory body run by the New Zealand Ministry of Health , administering the Medicines Act 1981 and Medicines Regulations 1984. [ 1 ]
Medsafe employs approximately 60 staff members in two offices. The head office, based in Welli... | https://en.wikipedia.org/wiki/Medsafe |
The medulla is a horizontal layer within a lichen thallus . It is a loosely arranged layer of interlaced hyphae below the upper cortex and photobiont zone, but above the lower cortex. [ 1 ] The medulla generally has a cottony appearance. It is the widest layer of a heteromerous lichen thallus.
This article about lic... | https://en.wikipedia.org/wiki/Medulla_(lichenology) |
Medullary thymic epithelial cells ( mTECs ) represent a unique stromal cell population of the thymus which plays an essential role in the establishment of central tolerance . Therefore, mTECs rank among cells relevant for the development of functional mammal immune system .
T cell precursors rise in bone marrow and mi... | https://en.wikipedia.org/wiki/Medullary_thymic_epithelial_cells |
Meera Nanda (born 1954) is an Indian writer and historian of science , [ 1 ] who has authored several works critiquing the influence of Hindutva , postcolonialism and postmodernism on science, and the flourishing of pseudoscience and vedic science . Meera Nanda taught History of Science at the Indian Institute of Scien... | https://en.wikipedia.org/wiki/Meera_Nanda |
The Meerwein arylation is an organic reaction involving the addition of an aryl diazonium salt (ArN 2 X) to an electron-poor alkene usually supported by a metal salt. [ 1 ] The reaction product is an alkylated arene compound. The reaction is named after Hans Meerwein , one of its inventors who first published it in 193... | https://en.wikipedia.org/wiki/Meerwein_arylation |
The Meerwein–Ponndorf–Verley (MPV) reduction in organic chemistry is the reduction of ketones and aldehydes to their corresponding alcohols utilizing aluminium alkoxide catalysis in the presence of a sacrificial alcohol. [ 1 ] The advantages of the MPV reduction lie in its high chemoselectivity and its use of a cheap e... | https://en.wikipedia.org/wiki/Meerwein–Ponndorf–Verley_reduction |
Mefloquine , sold under the brand name Lariam among others, is a medication used to prevent or treat malaria . [ 4 ] When used for prevention it is typically started before potential exposure and continued for several weeks after potential exposure. [ 4 ] It can be used to treat mild or moderate malaria but is not reco... | https://en.wikipedia.org/wiki/Mefloquine |
MegaTransect was the name for a project conducted in Africa in 1999 by J. Michael Fay to spend 465 days on the expedition hike of 2,000 miles (3,219 kilometers) across the Congo Basin of Africa to survey the ecological and environmental status of the region.
A transect is a term in ecology that denotes a survey of the... | https://en.wikipedia.org/wiki/MegaTransect |
The Mega Borg oil spill occurred in the Gulf of Mexico on June 8, 1990, roughly 50 miles off the coast of Texas , when the oil tanker Mega Borg caught on fire and exploded. The cleanup was one of the first practical uses of bioremediation .
At 11:30 PM on the evening of Friday June 8, 1990, [ 1 ] an explosion in the ... | https://en.wikipedia.org/wiki/Mega_Borg_oil_spill |
Mega Builders is a documentary television series appearing on the Discovery Channel and Science Channel . Each episode takes a look into the people and the machines involved into the construction of many huge engineering projects.
Discovery Channel Taiwan broadcast a version of the series in 2022 that covered how the ... | https://en.wikipedia.org/wiki/Mega_Builders |
A megabias , or a taphonomic megabias , is a large-scale pattern in the quality of the fossil record that affects paleobiologic analysis at provincial to global levels and at timescales usually exceeding ten million years. [ 1 ] It can result from major shifts in intrinsic and extrinsic properties of organisms, includi... | https://en.wikipedia.org/wiki/Megabias |
A megadiverse country is one of a group of nations that house the majority of Earth's species and high numbers of endemic species . Conservation International identified 17 megadiverse countries in 1998, [ 1 ] [ 2 ] all of which are located at least partially in tropical or subtropical regions.
Megadiversity means to ... | https://en.wikipedia.org/wiki/Megadiverse_countries |
Megaevolution describes the most dramatic events in evolution . It is no longer suggested that the evolutionary processes involved are necessarily special, although in some cases they might be. Whereas macroevolution can apply to relatively modest changes that produced diversification of species and genera and are read... | https://en.wikipedia.org/wiki/Megaevolution |
Megaflora (from Greek μέγας megas "large" and Neo-Latin flora "plant life") refers to an exceptionally large plant species; Jared Farmer defined the term as "the largest vascular plants of a particular region, habitat, or epoch". [ 1 ] Examples of megaflora include the Sequoioideae of California, Pando (a large clonal ... | https://en.wikipedia.org/wiki/Megaflora |
Megagametogenesis is the process of maturation of the female gametophyte, or megagametophyte, in plants. [ 1 ] During the process of megagametogenesis, the megaspore, which arises from megasporogenesis, develops into the embryonic sac, in which the female gamete is housed. [ 2 ] These megaspores then develop into the h... | https://en.wikipedia.org/wiki/Megagametogenesis |
The megahertz myth , or in more recent cases the gigahertz myth , refers to the misconception of only using clock rate (for example measured in megahertz or gigahertz) to compare the performance of different microprocessors . While clock rates are a valid way of comparing the performance of different speeds of the same... | https://en.wikipedia.org/wiki/Megahertz_myth |
Megakaryocyte–erythroid progenitor cells ( MEPs ), among other blood cells , are generated as a result of hematopoiesis , which occurs in the bone marrow . Hematopoietic stem cells (HSC) can differentiate into one of two progenitor cells: the common lymphoid progenitor and the common myeloid progenitor. MEPs derive fro... | https://en.wikipedia.org/wiki/Megakaryocyte–erythroid_progenitor_cell |
Megamitochondria is extremely large and abnormal shapes of mitochondria seen in hepatocytes in alcoholic liver disease and in nutritional deficiencies . It can be seen in conditions of hypertrophy in cell death .
This article related to pathology is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/Megamitochondria |
Megan and Morag , two domestic sheep , were the first mammals to have been successfully cloned from differentiated cells. [ 1 ] They are not to be confused with Dolly the sheep which was the first animal to be successfully cloned from an adult somatic cell [ 2 ] or Polly the sheep which was the first cloned and transge... | https://en.wikipedia.org/wiki/Megan_and_Morag |
Meganucleases are endodeoxyribonucleases characterized by a large recognition site (double-stranded DNA sequences of 12 to 40 base pairs); as a result this site generally occurs only once in any given genome . For example, the 18-base pair sequence recognized by the I-SceI meganuclease would on average require a genome... | https://en.wikipedia.org/wiki/Meganuclease |
Megaphone is a cytotoxic neolignan obtained from Aniba megaphylla , a flowering plant in the laurel family which gave the compound its name. Megaphone has also been prepared synthetically. [ 1 ] [ 2 ] [ 3 ]
Studies carried out in the 1960s demonstrated that an alcoholic extract of the ground root of Aniba megaphylla i... | https://en.wikipedia.org/wiki/Megaphone_(molecule) |
Megaphorbs are areas with a community of tall, exuberant, perennial herbs. [ 1 ] The plant communities provide ground cover and often exist on the margins of wooded areas, terrain that has recently been cleared, [ 2 ] or in disturbed areas adjacent to creeks or rivers. These plant communities are often found in mountai... | https://en.wikipedia.org/wiki/Megaphorb |
A megaproject is an extremely large-scale construction and investment project . [ 1 ] A more general definition is "Megaprojects are temporary endeavours (i.e. projects) characterised by: large investment commitment, vast complexity (especially in organisational terms), and long-lasting impact on the economy, the envir... | https://en.wikipedia.org/wiki/Megaproject |
Megascale engineering (or macro-engineering ) [ 1 ] is a form of exploratory engineering concerned with the construction of structures on an enormous scale. [ 2 ] Typically these structures are at least 1,000 km (620 mi) in length—in other words, at least one megameter , hence the name. Such large-scale structures are ... | https://en.wikipedia.org/wiki/Megascale_engineering |
Megaspores , also called macrospores , are a type of spore that is present in heterosporous plants . These plants have two spore types, megaspores and microspores . Generally speaking, the megaspore, or large spore, germinates into a female gametophyte , which produces egg cells . These are fertilized by sperm produced... | https://en.wikipedia.org/wiki/Megaspore |
A megastructure (or macrostructure [ 1 ] ) is a very large artificial object, although the limits of precisely how large vary considerably. Some apply the term to any especially large or tall building. [ 2 ] [ 3 ] Some sources define a megastructure as an enormous self-supporting artificial construct. The products of m... | https://en.wikipedia.org/wiki/Megastructure |
Megastructures is a documentary television series appearing on the National Geographic Channel in the United States and the United Kingdom, Channel 5 in the United Kingdom, France 5 in France, and 7mate in Australia.
Each episode is an educational look of varying depth into the construction, operation , and staffing o... | https://en.wikipedia.org/wiki/Megastructures_(TV_series) |
In evolutionary biology , megatrajectories are the major evolutionary milestones and directions in the evolution of life .
Posited by A. H. Knoll and Richard K. Bambach in their 2000 collaboration, "Directionality in the History of Life," Knoll and Bamback argue that, in consideration of the problem of progress in evo... | https://en.wikipedia.org/wiki/Megatrajectory |
A Megohmmeter or insulation resistance tester, is a special type of ohmmeter used to measure the electrical resistance of insulators . [ 1 ] Insulating components, for example cable jackets, must be tested for their insulation strength at the time of commissioning and as part of maintenance of high voltage electrical e... | https://en.wikipedia.org/wiki/Megohmmeter |
Mehdi Mollapour (born 1973) is a British-American biochemist and cancer biologist. He is a professor, vice chair for translational research and director of Renal Cancer Biology Program for the Department of Urology, and adjunct professor at the Department of Biochemistry and Molecular Biology at SUNY Upstate Medical Un... | https://en.wikipedia.org/wiki/Mehdi_Mollapour |
The Mehler reaction is named after Alan H. Mehler, who, in 1951, presented data to the effect that isolated chloroplasts reduce oxygen to form hydrogen peroxide ( H 2 O 2 ). [ 1 ] Mehler observed that the H 2 O 2 formed in this way does not present an active intermediate in photosynthesis; rather, as a reactive oxygen ... | https://en.wikipedia.org/wiki/Mehler_reaction |
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