All articles starting with P

Plastic Memories (プラスティック・メモリーズ)

Plastic Memories (プラスティック・メモリーズ) is a 2015 original 13-episode Doga Kobo anime written by Naotaka Hayashi of Steins;Gate, about Terminal Service employees retrieving expiring Giftia androids; Tsukasa and Isla lead.

Plastic Ono Band

Plastic Ono Band: conceptual band founded c. 1968–69 by Yoko Ono and John Lennon, named after a plastic assemblage sculpture, with flexible lineups; released "Give Peace A Chance" and the 1970 John Lennon/Plastic Ono Band and Yoko Ono/Plastic Ono Band albums; revived with Sean Lennon in 2009.

Oct 15, 2026

Plastic optical fiber

Plastic optical fiber, also called polymer optical fiber, is an optical fiber with a polymer core and cladding, typically a 1 mm PMMA core used for short-reach data links.

Plastic pollution

Plastic pollution: accumulation of plastics and microplastics in the environment; over 400 million tonnes produced yearly, ~9% recycled; governed by the UNEP-led global plastics treaty talks, stalled in Geneva 2025.

Plastic pyrolysis oil upgrading

Plastic pyrolysis oil upgrading is the catalytic and separation processing of crude oil from heated waste plastics into specification-grade products, mainly BTX aromatics and steam-cracker feedstocks.

Plastic recycling

Plastic recycling is the recovery of plastic waste as new plastic or feedstock, chiefly by sorting, cleaning, and remelting used thermoplastics; globally only about 9% is recycled.

Plastic surgery

Plastic surgery: surgical specialty restoring or altering body form and function, spanning reconstructive and cosmetic work. Founded as a specialty by Harold Gillies in WWI at Sidcup; tubed pedicle flaps; now millions of procedures yearly.

Plastic upcycling

Plastic upcycling is the conversion of plastic waste into products worth more than the original material, like fuels, lubricants, and monomers, through chemical and biological routes.

Plastic wrap

Plastic wrap (cling film, Saran wrap): thin transparent plastic film in rolls that clings to food and containers to keep food fresh. Discovered as PVDC at Dow in 1933; now mostly LDPE; hard to recycle.

Plastic-to-fuel

Plastic-to-fuel (PTF) is a set of thermochemical and catalytic technologies that convert waste plastics into fuels such as diesel, gasoline, jet fuel, or hydrogen, chiefly by pyrolysis.

Plastic-to-hydrogen

Plastic-to-hydrogen is a family of chemical processes that convert waste plastics into hydrogen gas, appealing because polyolefins contain 14 to 17 percent hydrogen and the processes consume plastic waste.

Sep 19, 2026

Plastician

Plastician, formerly Plasticman, is the alias of Chris Reed, a DJ and producer from Croydon, London, known for crossing grime and dubstep since the early 2000s.

Plasticine

Plasticine is an oil-based, non-hardening modeling clay invented by William Harbutt in England in 1897, with a German predecessor by Franz Kolb; it never dries, cannot be fired, and is used in art, claymation, industrial design, and engineering model testing.

Plasticity (physics)

Plasticity in physics is the property of a solid to deform permanently, beginning when stress exceeds the yield point; it underlies metal forming processes such as rolling and forging.

Plasticity of polymers

Plasticity of polymers is the study of how thermoplastic polymers and soft solids yield, deforming permanently once stress exceeds a rate-, temperature-, and pressure-dependent threshold.

Plasticizer

A plasticizer is an additive that makes plastics, above all PVC, soft and flexible; phthalates have dominated, and plasticizers are about a third of the plastic additives market.

Plastid

Plastid (chloroplast family): semi-autonomous organelles of plants and algae, originating from a single primary cyanobacterial endosymbiosis about 1.5 billion years ago, then spread by secondary and tertiary endosymbioses; types include chloroplasts, chromoplasts, and leucoplasts.

Plastid differentiation and interconversion

Plastid differentiation and interconversion is the process by which a single proplastid develops into chloroplasts, etioplasts, amyloplasts, and chromoplasts, all of which can convert between forms in response to light and tissue context.

Plastid division protein CDP1-like, 2nd alpha solenoid domain

Plastid division protein CDP1-like, 2nd alpha solenoid domain (InterPro IPR057137): an alpha-solenoid domain of CDP1/PARC6, a vascular-plant chloroplast inner envelope protein that inhibits FtsZ assembly, recruits ARC3, and positions PDV1.

Plastination

Plastination, invented by Gunther von Hagens in 1977 at Heidelberg, preserves anatomical specimens by replacing water and fat with curable polymers via vacuum impregnation, yielding dry, odorless, durable teaching and exhibition specimens (Body Worlds).

Plastique Tiara

Plastique Tiara (Duc Tran Nguyen) is a Vietnamese-born American drag queen, Drag Race season 11 contestant and All Stars 9 competitor, TikTok star with over 11 million followers, Alyssa Edwards' drag daughter, and advocate for Vietnamese representation.

Plastocyanin

Plastocyanin, also called PC, is a ~10 kD blue copper protein in the thylakoid lumen that shuttles electrons from cytochrome f to P700 in photosystem I; discovered by Katoh and Takamiya in 1961, replaced by cytochrome c6 under copper deficiency in algae and cyanobacteria.

Plastoquinone

Plastoquinone (PQ, PQ-9), a 2,3-dimethyl-nonaprenyl benzoquinone in chloroplast thylakoid membranes, carries two electrons and two protons from photosystem II to cytochrome b6f and signals redox state; discovered by Kofler, rediscovered by Crane.

Sep 19, 2026

Plastpro Inc.

Plastpro Inc. is a privately held American manufacturer of fiberglass entry doors, founded by Shirley Wang in 1994, headquartered in Los Angeles with a large automated plant in Ashtabula County, Ohio.

Plat

A plat is a scaled, recorded map of subdivided land showing lots, streets, easements, and monuments; also called subdivision plat or plat map. Distinct from a survey, it creates legal lots conveyable by reference once recorded.

Oct 20, 2026

PLAT (gene)

PLAT (TPA, tissue-type plasminogen activator gene), chromosome 8p12, encodes the serine protease tPA that activates plasminogen to plasmin; basis of alteplase thrombolytic therapy, with hypofibrinolysis linked to thrombophilia.

PLAT/LH2 and C2-like Ca2+-binding lipoprotein

PLAT/LH2 and C2-like Ca2+-binding lipoprotein (PLCC), Pfam PF14466, formerly DUF4425, is a bacterial beta-sandwich lipoprotein domain family structurally characterized from Bacteroides (PDB 3U6G, 4qey) and related to PLAT/LH2 and C2-like calcium-binding membrane-binding domains.

Plata Passage

Plata Passage, also Admiral Merino Channel (Canal Almirante Merino), is a passage in Wilhelmina Bay, Antarctic Peninsula, separating Brooklyn Island from the Danco Coast; charted by the Belgian Antarctic Expedition in 1898 and named for the Rio de la Plata.