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MPP Stereo Analysis
MPP or M.P.P. may refer to: * Marginal physical product * Master of Public Policy, an academic degree * Member of Provincial Parliament (Ontario), Canada * Member of Provincial Parliament (Western Cape), South Africa * ''Merriweather Post Pavilion'', an album released in 2009 by Animal Collective * Migrant Protection Protocols of the U.S. Citizenship and Immigration Service Groups and organizations * Marijuana Policy Project, US * Medicines Patent Pool, UN * Mongolian People's Party * Mouvement du Peuple pour le Progrès (People's Movement for Progress), Burkina Faso * Movement for a People's Party, US * Movement of Popular Participation, Uruguay Companies * Micro Precision Products, a British camera manufacturer Science and technology * Maximum Power Point * 1-Methyl-4-phenylpyridine (MPP+), a toxic molecule * Methylpiperidinopyrazole, a highly selective antagonist of ERα * Micro perforated plate, as a sound absorber * Molypermalloy powder core, a magnetic core in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marginal Physical Product
In economics and in particular neoclassical economics, the marginal product or marginal physical productivity of an input (factor of production) is the change in output resulting from employing one more unit of a particular input (for instance, the change in output when a firm's labor is increased from five to six units), assuming that the quantities of other inputs are kept constant. The marginal product of a given input can be expressed as: :MP = \frac where \Delta X is the change in the firm's use of the input (conventionally a one-unit change) and \Delta Y is the change in quantity of output produced (resulting from the change in the input). Note that the quantity Y of the "product" is typically defined ignoring externalities, external costs and benefits. If the output and the input are infinitely divisible, so the marginal "units" are infinitesimal, the marginal product is the mathematical derivative of the production function with respect to that input. Suppose a firm's o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Movement Of Popular Participation
The Movement of Popular Participation ( es, Movimiento de Participación Popular) is a Uruguayan political party. It is a member organisation of the left-wing Broad Front coalition. Background From 1985 onwards, after the end of the military dictatorship and the amnesty that freed those Tupamaros imprisoned during the regime, there was debate among different factions within the Tupamaros about whether or not to participate in the legal political system. In the end, those who favored the democratic ways prevailed. Foundation In 1989, the Tupamaros were admitted within the ranks of the Broad Front and, together with other groups of the radical left such as the People's Victory Party (PVP), the Oriental Revolutionary Movement (MRO) and the Socialist Workers' Party, they created the ''Movement of Popular Participation'' (MPP). However, the Tupamaros within the MPP declined to participate in the elections. As a result of the legislative elections of 1989, the MPP won two seats in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goodyear MPP
The Goodyear Massively Parallel Processor (MPP) was a massively parallel processing supercomputer built by Goodyear Aerospace for the NASA Goddard Space Flight Center. It was designed to deliver enormous computational power at lower cost than other existing supercomputer architectures, by using thousands of simple processing elements, rather than one or a few highly complex CPUs. Development of the MPP began circa 1979; it was delivered in May 1983, and was in general use from 1985 until 1991. It was based on Goodyear's earlier STARAN array processor, a 4x256 1-bit processing element (PE) computer. The MPP was a 128x128 2-dimensional array of 1-bit wide PEs. In actuality 132x128 PEs were configured with a 4x128 configuration added for fault tolerance to substitute for up to 4 rows (or columns) of processors in the presence of problems. The PEs operated in a single instruction, multiple data (SIMD) fashioneach PE performed the same operation simultaneously, on different data eleme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Massive Parallel Processing
Massively parallel is the term for using a large number of computer processors (or separate computers) to simultaneously perform a set of coordinated computations in parallel. GPUs are massively parallel architecture with tens of thousands of threads. One approach is grid computing, where the processing power of many computers in distributed, diverse administrative domains is opportunistically used whenever a computer is available.''Grid computing: experiment management, tool integration, and scientific workflows'' by Radu Prodan, Thomas Fahringer 2007 pages 1–4 An example is BOINC, a volunteer-based, opportunistic grid system, whereby the grid provides power only on a best effort basis.''Parallel and Distributed Computational Intelligence'' by Francisco Fernández de Vega 2010 pages 65–68 Another approach is grouping many processors in close proximity to each other, as in a computer cluster. In such a centralized system the speed and flexibility of the interconnect b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hematopoietic Stem Cell
Hematopoietic stem cells (HSCs) are the stem cells that give rise to other blood cells. This process is called haematopoiesis. In vertebrates, the very first definitive HSCs arise from the ventral endothelial wall of the embryonic aorta within the (midgestational) aorta-gonad-mesonephros region, through a process known as endothelial-to-hematopoietic transition. In adults, haematopoiesis occurs in the red bone marrow, in the core of most bones. The red bone marrow is derived from the layer of the embryo called the mesoderm. Haematopoiesis is the process by which all mature blood cells are produced. It must balance enormous production needs (the average person produces more than 500 billion blood cells every day) with the need to regulate the number of each blood cell type in the circulation. In vertebrates, the vast majority of hematopoiesis occurs in the bone marrow and is derived from a limited number of hematopoietic stem cells that are multipotent and capable of extensive se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micro Perforated Plate
A micro perforated plate (MPP) is a device used to absorb sound, reducing its intensity. It consists of a thin flat plate, made from one of several different materials, with small holes punched in it. An MPP offers an alternative to traditional sound absorbers made from porous materials. Structure An MPP is normally 0.5–2 mm thick. The holes typically cover 0.5 to 2% of the plate, depending on the application and the environment in which the MPP is to be mounted. Hole diameter is usually less than 1 millimeter, typically 0.05 to 0.5 mm. They are usually made using the microperforation process. Operating principle The goal of a sound absorber is to convert acoustical energy into heat. In a traditional absorber, the sound wave propagates into the absorber. Because of the proximity of the porous material, the oscillating air molecules inside the absorber lose their acoustical energy due to friction. A MPP works in almost the same way. When the oscillating air molecules pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methylpiperidinopyrazole
Methylpiperidinopyrazole (MPP) is a synthetic, nonsteroidal, and highly selective antagonist of ERα that is used in scientific research to study the function of this receptor. It has 200-fold selectivity for ERα over ERβ and 1000-fold selectivity for blocking ERα-mediated gene transcription relative to that of ERβ. See also * Glyceollin * Propylpyrazoletriol (PPT) * Diarylpropionitrile (DPN) * Prinaberel (ERB-041) * Liquiritigenin * Menerba * PHTPP PHTPP is a synthetic, nonsteroidal, and highly selective antagonist of ERβ that is used in scientific research to study the function of this receptor. It possesses 36-fold selectivity for ERβ over ERα, and is a silent antagonist of ERβ. ... * (R,R)-Tetrahydrochrysene ((R,R)-THC) References Antiestrogens 1-Piperidinyl compounds Phenol ethers Phenols Pyrazoles {{genito-urinary-drug-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MPP+
MPP+ (1-methyl-4-phenylpyridinium) is a positively charged organic molecule with the chemical formula C12H12N+. It is a neurotoxin that acts by interfering with oxidative phosphorylation in mitochondria by inhibiting complex I, leading to the depletion of ATP and eventual cell death. MPP+ arises in the body as the toxic metabolite of the closely related compound MPTP. MPTP is converted in the brain into MPP+ by the enzyme MAO-B, ultimately causing parkinsonism in primates by killing certain dopamine-producing neurons in the substantia nigra. The ability for MPP+ to induce Parkinson's disease has made it an important compound in Parkinson's research since this property was discovered in 1983. The chloride salt of MPP+ found use in the 1970s as an herbicide under the trade name cyperquat. Though no longer in use as an herbicide, cyperquat's closely related structural analog paraquat still finds widespread usage, raising some safety concerns. History MPP+ has been known since ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maximum Power Point
Maximum power point tracking (MPPT) or sometimes just power point tracking (PPT), is a technique used with variable power sources to maximize energy extraction as conditions vary. The technique is most commonly used with photovoltaic (PV) solar systems, but can also be used with wind turbines, optical power transmission and thermophotovoltaics. PV solar systems have varying relationships to inverter systems, external grids, battery banks, and other electrical loads. The central problem addressed by MPPT is that the efficiency of power transfer from the solar cell depends on the amount of available sunlight, shading, solar panel temperature and the load's electrical characteristics. As these conditions vary, the load characteristic ( impedance) that gives the highest power transfer changes. The system is optimized when the load characteristic changes to keep power transfer at highest efficiency. This optimal load characteristic is called the ''maximum power point'' (MPP). MPPT is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micro Precision Products
Micro Precision Products Ltd (MPP) was a British optical company that between 1941 and 1982 produced cameras and related equipment. (From 1976, its name was MPP Photographic Products Ltd.) MPP was formed in 1941 to sell equipment produced by Celestion Ltd.; in its early days, MPP employees also worked for Celestion or the related McMurdo Instrument Company. MPP was based in London: in Kingston until 1976, Wandsworth thereafter. Products MPP's first major product was the Micro-Technical Camera, in 1948. This was far in advance of any other camera produced in Britain. Mark II followed in 1949; Mark III in 1951; Marks VI, VII and VIII in 1952, 1956, and 1963. (Marks IV and V were not sold.) These had the full versatility and quality of technical cameras; some long remained in professional use. The Micro-Press Camera was a press camera available through the 1950s. MPP is the only postwar British manufacturer of twin-lens reflex cameras. The Microcord (1951) was based on the Roll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Movement For A People's Party
The Movement for a People's Party (MPP), also known simply as the People's Party, is a progressive political organization in the United States aimed at "forming a major new political party free of corporate money and influence". Nick Brana formed the party after the 2016 presidential election as "Draft Bernie for a People's Party." Bernie Sanders declined to be the People's Party's figurehead, instead again seeking the presidential nomination in the 2020 Democratic Party presidential primaries. History The organization was founded by Nick Brana, who previously worked with the Bernie Sanders 2016 presidential campaign as the National Political Outreach Coordinator. In 2017, Brana formed the group out of the "Draft Bernie for a People's Party", which failed to gain Sanders's support. The group gathered 50,000 signatures on a petition to present to Sanders and held its first mass gathering, the "Convergence Conference", in Washington, D.C. "The ultimate goal is to replace the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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