Encyclopedia

Pullback attractor In mathematics, the attractor of a random dynamical system may be loosely thought of as a set to which the system evolves after a long enough time. The basic idea is the same as for a deterministic dynamical system, but requires careful treatment because random dynamical systems are necessarily non-autonomous.
Pullback bundle In mathematics, a pullback bundle or induced bundle is a common construction in the theory of fiber bundles. Let π : E → B be a fiber bundle with fiber F and let f : B′ → B be an arbitrary continuous map.
Pulldown exercise The Pulldown exercise or the Cable Lat Pulldown is a compound exercise designed to stress and develop the Latissimus dorsi (Lat). To feel this muscle in its motion, stand with your elbow in the air 45 deg from vertical above and in front of your shoulder.
Pullein-Thompson sisters The Pullein-Thompson sisters - Josephine Pullein-Thompson (1924-), Diana Pullein-Thompson (1925-) and Christine Pullein-Thompson (1925-2005) - are British writers who have written innumerable horse and pony books (mostly fictional) aimed at children, but mostly popular with girls. They started at a very young age (initially writing collectively) and they were at their peak in the 1950s and 1960s, but their popularity has endured to a greater extent than some would have imagined.
Pullen Park Pullen Park is a scenic 72 acre park public park in Raleigh, North Carolina. It is located west of downtown, next to the campus of North Carolina State University, between Western Boulevard and Hillsborough Street.
Pullens buildings Pullens buildings are some of the last Victorian tenement buildings surviving in London, England. Located in Amelia Street, Crampton Street, Iliffe Street and Penton Place, they are be protected by Conservation Area status granted by Southwark Council.
Pullet A pullet is a young chicken, more specifically a hen at least 20-weeks-old which has begun to lay eggs but has not yet moulted. Pullets are more productive than the older laying hens; they often produce eggs for an entire year, while hens will lay for six-to-seven months.
Pulletop bushfire Pulletop bushfire started on the 6 February 2006 in hot dry and windy weather conditions about 30 km southeast of Wagga Wagga, New South Wales. The fire was thought to have been started by sparks from a tractor on a property at Pulletop which quickly got out of control.
Pulling Pulling is a BBC Comedy show, produced by Silver River Productions, currently being broadcast on BBC Three. It was co-written by Sharon Horgan and Dennis Kelly and stars Horgan, Tanya Franks, Rebekah Staton and Cavan Clerkin.
Pullip Pullip is a doll created by the Korean company Chunsang Chunha and marketed by JUN Planning of Japan. First released in 2003, Pullip is distinguished by her over-sized head (most likely inspired by the popular Blythe doll) and highly articulated body.
Pullman Bond Pullman Bondsare asset-backed securities] of current and future revenues of the first 25 albums (287 songs) of [[David Bowie's collection recorded before 1990. Issued by David Bowie in 1997, they were bought for $55 million by the Prudential Insurance Company.
Pullman Company The Pullman Palace Car Company, founded by George Pullman, manufactured railroad cars in the mid to late 1800s through the early decades of the 20th century, during the boom of railroads in the United States. Pullman developed the sleeping car which carried his name into the 1980s.
Pullman Square Pullman Square is a lifestyle center in downtown Huntington, West Virginia between 8th and 10th Street and 3rd Avenue and Vietnam Memorial Boulevard. It is located on what was known as the Superblock, a large large urban renewal project that saw the demolishing of four city-square-blocks in 1970.
Pullman Strike The Pullman Strike occurred when 50,000 Pullman Palace Car Company workers reacted to a 25% wage cut by going on a wildcat strike in Illinois on May 11, 1894, bringing traffic west of Chicago to a halt."Within three days 40,000 railroaders had walked out in a sympathy strike, bringing traffic west of Chicago to a halt.
Pullman, Richmond, California Pullman is a neighborhood in the city named after the Pullman Company, founded by prolific industrialist George Mortimer Pullman, who in 1910 built their main facility on the 22 acres that would become this neighborhood. This facility, The Pullman Shops, served as the main manufacturing and repair facility for the famous Pullman sleeping car ubiquitous throughout the United staes for much of the 20th century.
Pullman, Washington Pullman is a city in Whitman County, Washington, United States. The population was 24,675 at the 2000 census, although this statistic does not included a college dormitory that was accidentally mis-allocated to the town of Endicott, across the countyThe main campus of Washington State University] is located in Pullman.
Pullthrough A pullthrough is an automotive maneuver where a driver will drive through one parking space into a connecting space. It is generally done when parking, so that the driver does not need to reverse out of a parking space upon their return.
Pullulan Pullulan is a polysaccharide polymer consisting of maltotriose units, also known as α-1,4- ;α-1,6-glucan. Three glucose units in maltotriose are connected by an α-1,4 glycosidic bond, whereas consequtive maltotriose units are connected to each other by an α-1,6 glycosidic bond.
Pullulanase Pullulanase is a specific kind of glucanase, an amylolytic exoenzyme, that degrades pullulan. It is produced as an extracellular, cell surface-anchored lipoprotein by Gram-negative bacteria of the genus Klebsiella.
Pulmonaria longifolia Pulmonaria longifolia, (Narrow-leaved Lungwort) is a semi-evergreen clump-forming herbaceous perennial plant, native to western Europe, including Britain, France, Spain, Portugal. It grows in semi-shaded habitats, such as woodland and scrub, often on rather heavy clay soils, to 2000 m above sea level.
Pulmonary alveolar proteinosis Pulmonary alveolar proteinosis (PAP) is a rare lung disease in which abnormal accumulation of surfactant occurs within the alveoli, interfering with gas exchange. PAP can occur in a primary form or secondarily in the settings of malignancy (especially in myeloid leukemia), pulmonary infection, or environmental exposure to dusts or chemicals.
Pulmonary alveolus An alveolus (plural: alveoli, from Latin alveus, "little cavity"), is an anatomical structure that has the form of a hollow cavity. In the lung, the pulmonary alveoli are spherical outcroppings of the respiratory bronchioles and are the primary sites of gas exchange with the blood.
Pulmonary angiography Pulmonary angiography (or pulmonary arteriography) is a cardiological medical procedure. Pulmonary blood vessels are x-rayed to detect blood clots (such as a pulmonary embolism) or arteriovenous malformations.
Pulmonary artery catheter In medicine pulmonary artery catheterization is the insertion of a catheter into a pulmonary artery. Its purpose is diagnostic; it is used to detect heart failure or sepsis, monitor therapy, and evaluate the effects of drugs.
Pulmonary artery sling Pulmonary artery sling is a rare condition in which the left pulmonary artery anomalously originates from a normally positioned right pulmonary artery. The left pulmonary artery then progresses posteriorly over the right main bronchus near its origin from the trachea, traverses between the trachea and the esophagus and enters the left hilum.
Pulmonary aspiration In medicine, aspiration is the entry of secretions or foreign material into the trachea and lungs. The patient may either inhale the material, or it may be blown into the lungs during positive pressure ventilation or CPR.
Pulmonary circulation Pulmonary circulation is the portion of the cardiovascular system which carries oxygen-depleted blood away from the heart, to the lungs, and returns oxygenated blood back to the heart. The term is contrasted with systemic circulation.
Pulmonary pleura Each lung is invested by an exceedingly delicate serous membrane, the pleura, which is arranged in the form of a closed invaginated sac. A portion of the serous membrane covers the surface of the lung and dips into the fissures between its lobes; it is called the pulmonary pleura (or visceral pleura).
Pulmonary sequestration A pulmonary sequestration, also known as a bronchopulmonary sequestration or a cystic lung lesion, is a medical condition where a piece of tissue that develops into lung tissue is not attached to the pulmonary blood supply and does not communicate with the other lung tissue. Often it gets its blood supply from the thoracic aorta.
Pulmonic egressive In human speech, pulmonic egressive sounds are those in which the air stream is created by the lungs (pulmonic) exhaling and pushing air out (egressive) through the mouth or nose. The majority of sounds in most languages are both pulmonic and egressive.
Pulmonic ingressive In human speech, pulmonic ingressive sounds are those in which the air stream is created by the lungs (pulmonic) inhaling and pulling air in (ingressive) through the mouth or nose. Pulmonic ingressive sounds are rare.
Puloman According to the Hindu religion, the demon Puloman is the father of Indrani (Indra's wife) and Sivasri, who ruled the kingdom for seven years. Puloman was slain by Indra, who blasted him by the outpouring of his splendor.
Pulong Buhangin National High School Pulong Buhangin National High School (Filipino: Pambansang Mataas na Paaralan ng Pulong Buhangin) or PBNHS is a government secondary education institution located at Pulong Buhangin, Santa Maria town, Bulacan province, Philippines. Noted for its intensive teaching program.
Pulotu In the mythology of parts of western Polynesia (specifically Tonga and Samoa), Pulotu is the underworld, the world of darkness (as opposed to the human world of light). It may be represented as the paradise from which the gods came and to which the souls of diseased chiefs go.
Pulp (tooth) The dental pulp is the part in the center of a tooth made up of living soft tissue and cells called odontoblasts and others. It's commonly called 'the nerve', although it contains many other structures which are not nerves.
Pulp and paper industry The global pulp and paper industry is dominated by North American (United States, Canada), northern European (Sweden, Finland) and East Asian countries (such as Japan). Australasia and Latin America also have significant pulp and paper industries.
Pulp and Paper Merit Badge The Pulp and Paper Merit Badge is one of the least commonly earned merit badges of the Boy Scouts of America. Only 63,479 were earned between 1972 and 2004 It is one of the few merit badges that focus on a particular business or industry.
Pulp mill A pulp mill is a manufacturing facility that converts wood chips into a thick fibre board which can be shipped to a Paper Mill for further processing. Pulp can be manufactured using mechanical, semi-chemical or fully chemical methods such as the Kraft process.
Pulp noir Pulp noir is a term used to describe media that constitute a sub-genre of things influenced by various "noir" genres. Pulp noir is marked by its use of classic noir techniques, but with urban influences.
Pulp Sport Pulp Sport is a low budget TV show filmed in New Zealand that mixes sport with comedy. The hosts Jamie Linehan and Ben Boyce act under their respective pseudonyms Bill and Ben, performing a half hour of various sports based skits.
Pulparindo Pulparindo is the trade name of a Mexican candy produced by de la Rosa. The candy is made from the pulp from tamarind, and is flavoured with sugar, salt, and chiles, making it simultaneously tart, sweet, salty, and hot.
Pulping Pulping is the process of converting wood or nonwood material to separated pulp fibers for papermaking. Processes range from purely mechanical, in which the wood is ground into fibers by disk refiners or grindstones, to chemical, in which the fibers are separated by chemically degrading and dissolving the lignin that binds them together in the tree.
Pulpit A pulpit (from Latin pulpitum "scaffold", "platform", "stage") is a small elevated platform where a member of the clergy stands in order to read the Gospel lesson and deliver a sermon.
Pulpwood Pulpwood refers to timber stocks that are cut in order to make wood pulp for paper production. In the logging of mixed forest stands, the better trees usually are used for sawlogs for lumber production, while the inferior trees and components are harvested for pulpwood production.
Pulsa diNura Pulsa diNura or Pulsa Denoura (Aramaic: פולסא דנורא "lashes of fire") is a kabbalistic ceremony in which God is asked to unleash angels of destruction to block heavenly forgiveness of the subject’s sins, causing all the curses named in the Bible to befall him resulting in his death. However, the Torah prohibits to pray that something bad should happen to someone else.
Pulsar Pulsars are rotating neutron stars which emit detectable electromagnetic radiation in the form of radio waves. The radiation intensity varies with a regular period, believed to correspond to the rotation period of the star.
Pulsar 590A/E (bluetooth headset) Pulsar 590A and Pulsar 590E are bluetooth headsets. They are designed for use with bluetooth and A2DP (for stereo listening) enabled cellphones; including many Nokia, Sony, LG Group, Motorola and Palm models; most other bluetooth enabled devices; or with the Plantronics universal adapter.
Pulsar kicks A pulsar kick refers to the observed phenomenon that the neutron star remnant of many supernovae do not move with the velocity of their progenitor star, but rather with a substantially greater speed. The cause of pulsar kicks is unknown, but many astrophysicists believe that it must be due to an asymmetry in the way a supernova explodes.
Pulsar wind nebula A pulsar wind nebula (also known as a "plerion", Greek for "full") is a synchrotron nebula powered by the relativistic wind of an energetic pulsar. At the early stage of their evolution, pulsar wind nebulae are often found inside the shells of supernova remnants.
Pulsatile insulin Pulsatile insulin describes in a literal sense the injection of insulin in pulses versus continuous infusions. Injection of insulin in pulses mimics the physiological secretions of insulin by the pancreas into the portal vein which then drains into the liver.
Pulsatilla alpina Pulsatilla alpina, alpine pasqueflower, is an alpine plant found in the mountain ranges of central and southern Europe from central Spain to Croatia. It grows between 1200 m above sea level and 2700 m, and is mildly toxic.
Pulsating theory Pulsating Theory: Some astronomers believe that if the total mass of the universe is more than a certain value, the expansion of the galaxies would be stopped by the gravitational pull. Then the universe may again contract.
Pulse (band) Pulse is a New York City-based dance/house project that is the brainchild of Jellybean Benitez and features Antoinette Robertson on vocals. Of the five tracks they have charted on the Billboard Hot Dance Music/Club Play chart, their best known would also be their only #1: "The Lover That You Are" in 1996 (credited to Pulse featuring Antoinette Robertson).
Pulse (legume) Pulses are defined by the Food and Agricultural Organization of the United Nations (FAO) as annual leguminous crops yielding from one to twelve grains or seeds of variable size, shape and color within a pod. Pulses are used for food and animal feed.
Pulse (The annual festival of AIIMS, New Delhi) Pulse is the annual cultural, literary and sports festival of the All India Institute of Medical Sciences, New Delhi, India. It is held in the second half of September, usual dates being September 16-22 or September 17-23.
Pulse (X-Men comics) Pulse is the codename of Augustus (no surname confirmed), a mutant in the Marvel Universe who retained his powers post-M-Day. He is the man with whom Mystique is attempting to have Rogue fall in love; both now reside at the Xavier Institute.
Pulse 360 Pulse 360 is a content-targeted sponsored links innovator that gives advertisers the control, tools, flexibility and support they need to get results with certainty, and offers publishers a partner that can help them monetize their web sites.
Pulse compression Pulse compression is a signal processing technique mainly used in radar, sonar and echography to augment the distance resolution as well as the signal to noise ratio. This is achieved by modulating the transmitted pulse.
Pulse computer Pulse computation is a form of computation that lies between digital and analog computation. It is any form of computation that uses aperiodic electrical spikes (as opposed to binary periodic voltages, like a digital computer), to transmit information.
Pulse detonation engine A pulse detonation engine, or "PDE", is a type of propulsion system that has the potential to be both light and powerful and can operate from a standstill up to supersonic speeds. To date no practical PDE engine has been put into production, but several testbed engines have been built, proving the basic concept to some extent at least.
Pulse detonation wave engine A pulse detonation wave engine is a form of jet engine, which, according to rumour, is being used in an aircraft that was created/operates from/designed at a military complex in Groom Lake, Nevada (better known by the unofficial moniker "Area 51"). There is no physical evidence that the aircraft (called Aurora) exists, and thus, there is no evidence of this engine being used today.
Pulse dialing Pulse dialing or loop disconnect dialing, also called Rotary or Decadic dialing in the United Kingdom (because up to 10 pulses are sent), is pulsing in which a direct-current pulse train is produced by interrupting a steady signal according to a fixed or formatted code for each digit and at a standard pulse repetition rate.
Pulse forming network A Pulse Forming Network (PFN) accumulates electrical energy over a comparatively long time, then releases the stored energy in the form of a relatively square pulse of comparatively short duration for various pulsed power applications. In practice, a PFN is charged by means of a high voltage power source, then rapidly discharged into a load via a high voltage switch, such as a spark gap or hydrogen thyratron.
Pulse Global Pulse Global is a family of radio stations, exclusively playing new, unsigned, and emerging artists over the internet and across Satellite Television channels in some regions. The following franchises are currently operating:-
Pulse jet engine A pulse jet engine (or pulsejet) is a very simple form of internal combustion engine wherein the combustion occurs in pulses and the propulsive effort is a jet, this is, a reaction to the rearward flow of hot gases.
Pulse labelling Pulse labelling is a technique of identifying the target molecule presence by inclusion of a pulse of a radioactive compound. This is mainly done to identify the stage at which the mRNA is been produced in the cell.
Pulse oximeter A pulse oximeter is a medical device that indirectly measures the amount of oxygen in a patient's blood and changes in blood volume in the skin, a photoplethysmograph. It is often attached to a medical monitor so staff can see a patient's oxygenation at all times.
Pulse repetition frequency Pulse Repetition Frequency (PRF) is the number of pulses transmitted per second by a radar. The reciprocal of this is called the Pulse Repetition Time (PRT), Pulse Repetition Interval (PRI), or Inter-Pulse Period (IPP), which is the elapsed time from the beginning of one pulse to the beginning of the next pulse.
Pulse-address multiple access In telecommunication, pulse-address multiple access (PAMA) is the ability of a communication satellite to receive signals from several Earth terminals simultaneously and to amplify, translate, and relay the signals back to Earth, based on the addressing of each station by an assignment of a unique combination of time and frequency slots.
Pulse-code modulation Pulse-code modulation (PCM) is a digital representation of an analog signal where the magnitude of the signal is sampled regularly at uniform intervals, then quantized to a series of symbols in a digital (usually binary) code. PCM has been used in digital telephone systems and is also the standard form for digital audio in computers and the compact disc red book format.
Pulse-coupled networks Pulse-coupled networks or Pulse-Coupled Neural Networks (PCNNs) are neural models proposed by modeling a cat’s visual cortex and developed for high-performance biomimetic image processing. In 1989, Eckhorn introduced a neural model to emulate the mechanism of cat’s visual cortex.
Pulse-density modulation Pulse-density modulation, or PDM, is a form of modulation used to represent an analog signal in the digital domain. In a PDM signal, specific amplitude values are not encoded into pulses as they would be in PCM.
Pulse-Doppler radar Pulse-Doppler is a radar system capable of not only detecting target location (bearing, range, and altitude), but also measuring its radial velocity (range-rate). It uses the Doppler effect to determine the relative velocity of objects; pulses of RF energy returning from the target are processed to measure the phase shift between carrier cycles in each pulse and the original transmitted frequency.
Pulse-chase analysis In microbiology, a pulse-chase analysis is a method for examining a cellular process occurring over time by successively exposing the cells to a radioactive compound (pulse) and then to the same compound in nonradioactive form (chase).
Pulsed field gel electrophoresis Pulsed Field Gel Electrophoresis (commonly abbreviated as PFGE) is a labor-intensive method for genetic fingerprinting. It differs from normal agarose gel electrophoresis by the use of an alternating electrical field (hence the name).
Pulsed laser deposition Pulsed laser deposition (PLD) is a thin film deposition technique where a high power pulsed laser beam is focused inside a vacuum chamber to strike a target of the desired composition. Material is then vaporized from the target and deposited as a thin film on a substrate, such as a silicon wafer facing the target.
Pulsed plasma thruster Pulsed plasma thrusters are a method of spacecraft propulsion which use an arc of electric current adjacent to a solid propellant, to produce a quick and repeatable burst of impulse. PPTs are great for attitude control, and for main propulsion on particularly small spacecraft with a surplus of electricity (those in the hundred-kilogram or less category).
Pulsedriver Pulsedriver is the production alias of the german producer Slobodan Petrovic Jr.. He labels his music as "Trancecore", however this has nothing to to with the actual hardcore subgenre trancecore, but is a lot closer to euro-trance.
Pulseless electrical activity Pulseless Electrical Activity (also known by the older term Electromechanical Dissociation or Non-Perfusing Rhythm) refers to any heart rhythm observed on the electrocardiogram that should be producing a pulse, but is not. The condition may or may not be caused by electromechanical dissociation.
Pulsus paradoxus In medicine, a pulsus paradoxus (PP), also paradoxic pulse and paradoxical pulse, is an exaggeration of the normal variation in the pulse during respiration, in which the pulse becomes weaker as one inhales and stronger as one exhales. It is a sign that is indicative of several conditions including cardiac tamponade and lung diseases (e.
Pulsus tardus et parvus In medicine, pulsus tardus et parvus, is a sign where, on palpation of the pulse, the pulse is late (tardus) (relative to contraction of the heart) and weak/small (parvus). Classically, it seen in aortic valve stenosis.
Pulteney Bridge Pulteney Bridge is a bridge that crosses the River Avon, located in Bath, England and completed in 1773. It was designed by Robert Adam and is one of only four bridges in the world with shops across the full span on both sides.
Pulteney Grammar School Pulteney Grammar School is an Anglican private school located on South Terrace, Adelaide in South Australia. It was founded as a boys' school on Monday, 29 May 1848, and is one of the oldest schools in South Australia.
Pultrusion Pultrusion is a continuous process of manufacturing of composite materials with constant cross-section whereby reinforcing fibers are pulled through a resin, possibly followed by a separate preforming system, and into a heated die, where the resin undergoes polymerization. Many resin types may be used in pultrusion including polyester, polyurethane, vinylester and epoxy.
Pulttibois Pulttibois (Finglish for "Bolt Boys"; also a play on words of pultti pois - "to have a screw loose") was a popular Finnish sketch comedy television show that premiered on MTV3 in 1989 and which starred a two-man cast of comedic actors - Pirkka-Pekka Petelius and Aake Kalliala. Both Petelius and Kalliala previously had been known for their work on YLE sketch comedies during the 1980s.
Pulver Lev Lev Mikhaylovich Pulver (Yiddish pronunciation: Leib Pulver, European spelling: Leo Pulver), was a Russian-Jewish musician. He was born in December, 18, 1883, in Yekaterinoslav ( Dnepropetrovsk) in the Russian Empire (now Ukraine), and died in 1970 in Moscow, Russia.
Pulverised fuel ash Pulverised fuel ash (shortened to PFA, also fly ash) can be a by product of a coal power station, an example of which is Aberthaw Power Station on the south-coast of Wales west of Cardiff near Barry in the Vale of Glamorgan.
Puma (AFV) The Puma light wheeled armoured fighting vehicle family consists of the “Puma 6x6” and “Puma 4x4”. The vehicles were developed and are being produced by the “Consorzio Iveco Fiat - Oto Melara” of Italy for the Italian Army.
Puma (car) Puma was a Brazilian specialist car manufacturer who built cars between 1967 and around 1997. High import tariffs effectively closed Brazil during much of this period to foreign-built cars, and the vehicles available to the average Brazilian were limited to those built in Brazil either by foreign manufacturers, such as Volkswagen and General Motors, who established Brazilian manufacturing plants, and the products of local companies.
Puma Jones Sandra "Puma" Jones (1953–1990), an American singer, who is best known for her involvement with the Grammy Award-winning group, Black Uhuru. Born in Columbia, South Carolina, on 5th October 1953, she went on to graduate from Columbia University with a Masters Degree, before becoming a social worker in New York City.
Puma Trophy The Puma Trophy was established as a perpetual trophy between the Argentina and Australian rugby union nations, the trophy is a bronzed statue of a Puma. Argentina and Australia first played against each other in 1979.
Puma Washington Puma Washington (born Sabrina Fredrica Washington on 27 October, 1978 in Harlesden, London) is an English singer and dancer who rose to fame as the lead singer of the UK girl band, Mis-Teeq. Currently, Washington is recording tracks for her solo debut album Comfort Zone, to be released in Spring 2007.
PumalĂ­n Park Pumalin Park (Spanish: Parque PumalĂ­n) is a private park in the Palena Province of Chile owned by American businessman Douglas Tompkins. It is currently divided into two areas, and he is currently attempting to buy the land dividing them.
Pumas (rugby team) The Pumas, also known for sponsorship reasons as @lantic Pumas, are a South African rugby union team that participates in the annual Currie Cup tournament. They play out of Witbank at @lantic Stadium, the new sponsorship name of the former Jan van Riebeeck Stadium, and draw their players from Mpumalanga Province.
Pumbedita Pumbedita (sometimes Pumbeditha, Pumbeditha, Pumpedita, or Pumbedisa) was the name of a city in ancient Babylonia that was a major center of Talmud scholarship that, together with the city of Sura, gave rise to the Babylonian Talmud. The academy there was founded by Judah ben Ezekiel in the late third century.
Pumelo independent film festival Pumelo Independent Film Festival in Mumbai, India is a new independent film festival in India. They accept screenings of feature films (duration more than 30mins), short films (duration less than 30mins), animated films (duration less than 30mins) & documentaries.
Pumice Pumice is a highly vesicular pyroclastic igneous rock of intermediate to siliceous magmas including rhyolite, trachyte and phonolite. Pumice is usually light in colour ranging from white, yellowish, gray, gray brown, and a dull red.
Pummerer rearrangement The Pummerer rearrangement is an organic reaction whereby an alkyl sulfoxide rearranges to an α-acyloxy-thioether in the presence of acetic anhydride. In this reaction, sulfur is reduced while adjacent carbon is oxidized.
Pump A pump is a device used to move liquids, or slurries. A pump moves liquids from lower pressure to higher pressure, and overcomes this difference in pressure by adding energy to the system (such as a water system).
Pump action shotgun Pump action shotguns, also called slide action repeating shotguns or slide action shotguns, are a subclass of shotguns that are distinguished in the way in which spent shells are extracted and fresh ones are chambered. The weapon has a single barrel above a tube in which between 3 and 8 shells are inserted, depending on the model.

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