All articles starting with P
28,818 articles
Pressure-induced superconductivity
Pressure-induced superconductivity is the appearance or enhancement of superconductivity in a material under high pressure. Studied since 1925, it produces record hydride superconductors and states retained at ambient pressure.
Pressure-jump
The pressure-jump is a relaxation technique in chemical kinetics: a sudden pressure change shifts a reaction equilibrium, and the readjustment yields rate constants for very fast reactions.
Pressure-sensitive adhesive
A pressure-sensitive adhesive (PSA) is an adhesive that forms a bond when pressure is applied, without heat, solvent, or chemical reaction, used in tapes, labels, stamps, and bandages.
Pressure-sensitive paint
Pressure-sensitive paint (PSP) is an optical measurement technique, first used in wind tunnels in the late 1980s, in which a luminescent coating reports surface air pressure.
Pressure-sensitive tape
Pressure-sensitive tape, also called sticky tape or PSA tape, is a flexible strip coated with a tacky adhesive that bonds under light finger pressure, first made in 1845.
Pressured speech
Pressured speech (pressure of speech; ICD-11 MB23.L) is rapid, loud, urgent speech that is hard to interrupt, a cardinal sign of manic episodes in bipolar disorder, also seen in schizophrenia and anxiety.
Pressureless sintering
Pressureless sintering is the densification of a powder compact by heating alone, with no external pressure, and is the dominant fabrication route for ceramic bodies.
Pressuremeter test
The pressuremeter test (PMT) is an in situ geotechnical test in which a probe with an expandable membrane is inflated in a borehole to derive soil strength and stiffness parameters.
Pressurized fluidized bed combustion
Pressurized fluidized bed combustion (PFBC) is a coal-fired power technology in which coal burns under pressure in a combined steam and gas turbine cycle, commercialized in the 1990s.
Pressurized intraperitoneal aerosol chemotherapy
Pressurized intraperitoneal aerosol chemotherapy (PIPAC) is a repeatable laparoscopic technique, first reported in 2013, that nebulizes low-dose chemotherapy into the abdomen to treat peritoneal carcinomatosis.
Pressurized liquid extraction
Pressurized liquid extraction (PLE), also called accelerated solvent extraction (ASE), is an analytical chemistry technique that extracts compounds from solid samples using organic solvents at elevated temperature and pressure.
Pressurized thermal shock
Pressurized thermal shock (PTS) is a pressurized water reactor event combining severe overcooling of the reactor pressure vessel with high pressure, threatening vessels embrittled by neutron irradiation.
Pressurized water reactor
A pressurized water reactor (PWR) is a nuclear reactor in which water held at high pressure serves as coolant and moderator, the most common reactor type worldwide at about 65% of operating power reactors.
Pressurizer
A pressurizer is a tank, roughly half filled with water and half with steam, that controls pressure in a pressurized water reactor using electric heaters and a cool-water spray.
PREST trial
PREST (Pain REduction with bone metastases STereotactic radiotherapy), NCT03597984, is a phase III Italian multicenter randomized trial comparing IMRT-SIB 7 Gy x 3 plus 10 Gy x 3 boost versus standard 4 Gy x 5 for painful spinal bone metastases, with 3-month pain control as primary endpoint.
Přešt'ovice
Přešt'ovice (Přešťovice), Germanic Roman-period settlement and 522-grave cremation cemetery near Strakonice, southern Bohemia, discovered 1932 by Bedřich Dubský; eponymous site of the Přešťovice-Friedenhain group.
Presta valve
The Presta valve, also called the Sclaverand or French valve after its inventor Étienne Sclaverand, is a narrow bicycle tire valve standard on road bikes and most tubeless systems.
Prestatyn
Prestatyn: seaside resort town on the North Wales coast, Denbighshire, 6 km east of Rhyl. Known for a Roman bath house and civil settlement (AD 80-160), a disproved Roman fort, Domesday record, and 11th-century motte-and-bailey castle destroyed in 1167.
Prestel
Prestel was a British viewdata service developed by the Post Office and launched in 1979, the world's first public viewdata network, serving about 90,000 subscribers before its 1994 sale.
Prester John
Prester John (presbyter Iohannes), legendary medieval Christian priest-king of a marvel-filled realm beyond Islam, first reported 1145 by Otto of Freising, spread by a forged 1165 letter, located in India, Central Asia, then Ethiopia, and sought by Portuguese explorers.
Prestes Column
The Prestes Column (Coluna Prestes) was a Brazilian rebel force led by Luís Carlos Prestes and Miguel Costa that marched some 25,000 km from 1925 to 1927.
Prestige (ransomware)
Prestige is a ransomware strain first deployed on October 11, 2022, against transportation and logistics organizations in Ukraine and Poland, attributed to Russia's Sandworm group.
Prestige Kingfisher Towers
Prestige Kingfisher Towers, also called Kingfisher Towers, is an ultra-luxury three-tower residential development on Vittal Mallya Road, Ashok Nagar, Bengaluru, built by Prestige Group with United Breweries on Mallya's ancestral land, with 81 full-floor 8,321 sq ft apartments and the unoccupied, seized Sky Mansion penthouse.
Prestige oil spill
Prestige oil spill: November 2002 sinking of the Bahamian single-hull tanker Prestige off Galicia, Spain, releasing about 63,000 tonnes of heavy fuel oil that polluted Spanish, French, and Portuguese coasts and reshaped EU maritime safety law.
Prestige Records
Prestige Records, originally New Jazz, an independent jazz label founded by Bob Weinstock in New York City in 1949; Rudy Van Gelder engineered its catalog; sold to Fantasy in 1971.
Prestij Müzik
Prestij Müzik was a Turkish record label of the 1990s Istanbul music market, founded by Hilmi Topaloğlu and Burhan Aydemir and known for arabesk and pop stars like Mahsun Kırmızıgül.
Prestin
Prestin (SLC26A5) is the motor protein of cochlear outer hair cells, driving voltage-dependent electromotility for cochlear amplification. Named from Italian 'presto'; its anion transport, voltage sensing, and 2021 structures distinguish it from other SLC26 transporters.
Presto (album)
Presto (1989) is Rush's 13th studio album and first for Atlantic Records, produced with Rupert Hine at Le Studio. It dialed back synthesizers for a guitar-led sound; The Pass addresses teen suicide; it reached Billboard No. 16 and went RIAA Gold.
Preston (singer)
Preston (Samuel Dylan Murray Preston, born 1982, Worthing) is the English singer of the Ordinary Boys, a 2006 Celebrity Big Brother contestant, ex-husband of Chantelle Houghton, and later a hit songwriter for Olly Murs, Kylie Minogue, and Liam Payne.
Preston A. Henne
Preston A. Henne is an American aeronautical engineer who spent 44 years at McDonnell Douglas and Gulfstream, leading six business jets to certification and winning three Collier Trophies.