All articles starting with P
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Potters Bar rail accidents
The Potters Bar rail accidents, known as the Potters Bar crash, were railway accidents at Potters Bar station in Hertfordshire, England, including a deadly 1946 collision and 2002 derailment.
Pottery
Pottery is ware made from shaped clay that is dried and fired in a kiln, permanently hardening the clay; it also names the craft of making such ware.
Pottery of ancient Greece
Pottery of ancient Greece: fired-clay vessels from c. 1000 BCE onward, including Attic black-figure and red-figure wares, updraft kilns, three-stage firing, and vase typologies used for dating.
Potthakuttha
Potthakuttha (पोट्थकुट्ठ) was a Damila official who administered the Anuradhapura kingdom in Sri Lanka after King Aggabodhi IV died, in the 7th or early 8th century.
Poṭṭhilā
Poṭṭhilā (पोट्ठिल) is an elder monk of the Buddha's time, learned in the Tipiṭaka across seven Buddhas, who became an Arahat after the Buddha's rebuke.
Potti Sreeramulu (పొట్టి శ్రీరాములు)
Potti Sreeramulu (పొట్టి శ్రీరాములు), Amarajeevi, Gandhian freedom fighter (1901–1952) whose 58-day fast unto death for a Telugu-speaking Andhra State forced its creation on 1 October 1953, India's first linguistic state.
Pottiaceae
Pottiaceae, also called the Pottiaceae Hampe moss family, is the largest moss family by genera, about 1,400 species in 83 genera of Dicranidae, known for desiccation-tolerant mosses of harsh habitats and difficult taxonomy.
Potting (electronics)
Potting is an electronics manufacturing method that encases a component in a liquid resin, such as epoxy or silicone, cured to protect it from moisture and vibration.
Potto
Potto (Perodicticus potto), West African potto, a small nocturnal lorisid primate of African rainforest with a scapular shield, powerful grip, and Near Threatened IUCN status; split into three species since 2015.
Potts model
The Potts model is a lattice model in statistical mechanics where each site takes one of q discrete states, introduced by Renfrey Potts in 1952 as a generalization of the Ising model.
Pottsville Formation
Pottsville Formation: Early Pennsylvanian coal-bearing sandstone, conglomerate, shale, and coal unit named from Pottsville, Pennsylvania; extends from the Appalachian basin to the Black Warrior basin of Alabama, hosting coal and coalbed methane.
Pottu
Pottu (பொட்டு), 2019 Tamil horror film directed by V. C. Vadivudaiyan, starring Bharath as a possessed MBBS student, with Iniya, Namitha, Srushti Dange; released 8 March 2019, poorly reviewed.
Potyviridae
Potyviridae, the potyvirids, largest family of plant-infecting RNA viruses (over 30% of known plant viruses): filamentous ssRNA(+) virions 650–950 nm, 8–11 kb genomes, 13 genera including Potyvirus, order Patatavirales.
Potyvirus
Potyvirus, largest genus of the plant virus family Potyviridae; type species potato virus Y. Flexuous filamentous virions, 9.7-11 kb positive-sense ssRNA genome, polyprotein expression, non-persistent aphid transmission via HC-Pro.
Potyvirus nicotianainsculpentis
Potyvirus nicotianainsculpentis is an ICTV virus species in genus Potyvirus, family Potyviridae, whose member virus is tobacco etch virus (TEV), a filamentous, positive-sense RNA plant virus of Nicotiana.
Potyvirus phaseovulgaris
Potyvirus phaseovulgaris, the ICTV binomial species name for Bean common mosaic virus (BCMV), a potyvirus of common bean transmitted by seed and aphids, causing mosaic and black root disease.
POU domain
POU domain: conserved ~155-162 amino acid bipartite DNA-binding region of Pit-Oct-Unc transcription factors, with POU-specific and POU-homeodomain subdomains binding the octamer motif ATGCAAAT; key to development and pluripotency.
POU1F1
POU1F1 (PIT1, GHF-1), gene at 3p11.2 encoding a pituitary-specific POU-homeodomain transcription factor required for GH, PRL, and TSH cell development; mutations cause combined pituitary hormone deficiency.
POU2F2
POU2F2, also known as OCT2 or OTF2, is a human gene on chromosome 19 that encodes a transcription factor controlling immunoglobulin production and B-cell differentiation, and is implicated in lymphoma.
POU5F1
POU5F1 (OCT4, Oct3/4) is a POU-homeodomain transcription factor gene on human chromosome 6p21.33 central to embryonic stem cell pluripotency, iPSC reprogramming, and zygotic genome activation, with pseudogenes and cancer links.
Pouce Coupe Oil and Gas Field
The Pouce Coupe oil and gas field is a producing field on the Alberta–British Columbia border near Grande Prairie, first drilled for gas in 1920 and now a major Montney tight gas play.
Pouce Coupe South Oil and Gas Field
Pouce Coupe South is an oil and gas field in northwestern Alberta, just east of the British Columbia border, and one of Canada's most active Montney play locations.
Pouch (marsupial)
The marsupial pouch, or marsupium, is a fold of skin on the abdomen of many female marsupials where the newborn completes its development while suckling.
Pouch bag
A pouch bag is a soft, unstructured handbag, typically closed by a drawstring, known for Bottega Veneta's oversized 2019 Pouch and a runway revival for spring 2026.
Pouch cell
A pouch cell is a lithium-ion battery cell sealed in a flexible aluminum-polymer pouch instead of a rigid metal can, offering low weight and custom sizes.
Pouchenie
Pouchenie (Russian: поучение, "instruction") is a didactic genre of Old Russian literature, a speech of moral instruction; its most famous work is Vladimir Monomakh's testament of about 1117.
Pouchitis
Pouchitis, also called ileal pouch inflammation, is non-specific inflammation of the ileal reservoir after ileal pouch-anal anastomosis, mainly in ulcerative colitis patients. Affects about 32% of UC pouch patients, treated with antibiotics, probiotics, and biologics.
Pouchoscopy
Pouchoscopy is the endoscopic examination of the ileal pouch after ileal pouch–anal anastomosis (IPAA) surgery, the primary diagnostic test for pouch disorders, above all pouchitis, with biopsy when needed.
Poudre B
Poudre B was the first practical smokeless military propellant, a nitrocellulose powder invented in 1884 by French chemist Paul Vieille, which armed the Lebel rifle of 1886 and remained France's main powder until World War II.
Poughkeepsie, New York
Poughkeepsie, New York: a Hudson River city in Dutchess County, about 75 miles north of New York City, population about 32,500. Distinct from the surrounding Town of Poughkeepsie; site of New York's 1788 Constitution ratification and America's first slow sand filtration plant.