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All articles starting with P

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Pīpā

Pīpā (पीपा) is a Sant poet-king of Gagron in Rajasthan who, per hagiography, renounced his throne in the 15th century to become a disciple of Rāmānanda; one hymn survives in the Guru Granth Sahib.

Pipa (琵琶)

The pipa (琵琶), or Chinese lute, is a four-string plucked lute with a pear-shaped body, held upright and played with the fingernails; it has been central to Chinese music since the Tang dynasty.

Pipa Ji

Pipa Ji (琵琶記), also translated The Tale of the Pipa or The Lute, is a Chinese nanxi play by Gao Ming, honored as the ancestor of southern drama.

PIPA Snow Polo World Cup Tour

PIPA Snow Polo World Cup Tour: winter snow polo circuit founded by Reto Gaudenzi at St. Moritz in 1985, with flagship events at St. Moritz and Kitzbühel; four-player teams, inflatable ball, high-goal handicaps up to 16.

Pipamazine

Pipamazine (Mornidine, CAS 84-04-8), a phenothiazine antiemetic introduced in 1959 for nausea and vomiting; withdrawn by the US FDA in July 1969 for lack of proof of efficacy and safety in pregnant women.

Pipamperone

Pipamperone (Dipiperon, R 3345), a butyrophenone typical antipsychotic introduced by Janssen in 1961; 5-HT2A/D4 antagonist used in the Netherlands, Belgium, and Germany for psychosis, agitation, behavioral problems, and delirium, lacking FDA approval.

Pipe (fluid conveyance)

A pipe is a hollow cylinder, usually rigid, that conveys fluids such as water, gas, sewage, or oil; pipes are sized by nominal diameter, unlike tubes.

Pipe bomb

A pipe bomb is an improvised explosive device in which explosive material sealed inside a metal or plastic pipe builds pressure that shatters the casing into lethal fragments.

Pipe jacking

Pipe jacking is a trenchless construction method in which hydraulic jacks push prefabricated pipes through the ground between shafts, typically for sewers and utility crossings under roads and railways.

Pipe Nebula

The Pipe Nebula is a large dark molecular cloud in Ophiuchus, about 450 light-years away, visible to the naked eye against the Milky Way's star clouds.

Pipe network analysis

Pipe network analysis, also known as pipe networks, calculates flow rates and pressures in interconnected pipe systems; its governing equations are nonlinear and solved iteratively, as in software like EPANET.

Pipe organ

Pipe organ: a keyboard wind instrument feeding pressurized air through selected pipes; ranks, stops, manuals, and pedalboard; invented as the hydraulis by Ktesibios in 3rd-century BC Alexandria; flue and reed pipes; Wanamaker Organ has 28,000+ pipes.

Pipe Peláez

Pipe Peláez, born Felipe Peláez Rodríguez in Maracaibo, Venezuela, in 1976, is a Colombian–Venezuelan vallenato singer-songwriter and producer, a leading figure in romantic vallenato with Latin Grammy wins in 2010 and 2013.

Pipe smoking

Pipe smoking: burning tobacco in a bowl-and-stem pipe. Native American origin, spread to Europe late 1500s via England and Dutch clay pipe industry; all-cause mortality RR 1.99 vs never smokers.

Pipe-laying ship

A pipe-laying ship, also called a pipelay vessel, is a specialized marine vessel that welds and lowers steel pipeline onto the seabed as it advances along the route.

Pipecuronium

Pipecuronium (Arduan) is a long-acting aminosteroid non-depolarizing neuromuscular blocking agent introduced in 1982, ED95 0.05 mg/kg, duration 80-90 min, renal excretion, and no cardiovascular effects unlike pancuronium.

Pipedream (integration platform)

Pipedream is a developer-focused integration platform for connecting APIs, automating event-driven workflows, and building AI agents, founded in 2019 by Tod Sacerdoti and acquired by Workday.

Pipefy

Pipefy is a private no-code workflow and business-process-management software company founded in 2015 by Alessio Alionço, originating in Brazil, which has raised over $152 million and now positions itself as an AI-driven process automation platform.

Pipeline (computing)

A pipeline, or CPU pipeline, is a processor design dividing instruction execution into stages so several instructions overlap, raising throughput; the classic example has five stages.

Pipeline and Hazardous Materials Safety Administration

The Pipeline and Hazardous Materials Safety Administration (PHMSA) is a U.S. Department of Transportation agency, established in 2005, that regulates the nation's pipelines and hazardous materials shipments.

Pipeline commissioning

Pipeline commissioning is the sequence of cleaning, gauging, hydrostatic testing, dewatering, drying, and purging that prepares a newly constructed pipeline, or one returning to service, to carry product safely.

Pipeline integrity management

Pipeline integrity management is a structured program of inspection, risk assessment, and repair through which pipeline operators keep pipelines fit for service, required in the United States.

Pipeline leak detection

Pipeline leak detection is the set of technologies and methods for establishing whether a pipeline carrying water, oil, or gas is leaking, often locating the leak.

Pipeline right-of-way

A pipeline right-of-way is a defined strip of land over which a pipeline company holds the legal right to build, operate, and maintain a pipeline, usually as an easement.

Pipeline transport

Pipeline transport is the movement of liquids and gases, chiefly crude oil, refined products, and natural gas, through welded steel pipe, carrying over 90% of US oil movements.

PIPELINE trial

PIPELINE (NCT04462445), a completed phase 2 single-arm translational trial at Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, sought NGS and circulating angiogenic factor biomarkers of resistance to first-line pazopanib in treatment-naive metastatic renal cell carcinoma.

Pipelined ADC

A pipelined ADC, or pipelined analog-to-digital converter, converts an analog signal to digital in consecutive stages, each resolving a few bits, with one result per clock cycle.

Piper (plant)

Piper, also known as the Piper genus, is a genus of flowering plants in the pepper family, comprising roughly 2,400 to 2,600 tropical species including black pepper and betel.

Piper (source control system)

Piper is Google's custom centralized version control system, storing nearly all company source code in a single monolithic repository of about 2 billion lines as of 2015.

Piper aduncum

Piper aduncum (spiked pepper, matico) is a 2–7 m Piperaceae shrub native from Mexico to tropical South America, invasive in the Pacific and Southeast Asia, used in traditional medicine and as a dillapiol-rich essential oil source.